8138 lines
333 KiB
EmacsLisp
8138 lines
333 KiB
EmacsLisp
;;; org-element.el --- Parser for Org Syntax -*- lexical-binding: t; -*-
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;; Copyright (C) 2012-2023 Free Software Foundation, Inc.
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;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; See <https://orgmode.org/worg/dev/org-syntax.html> for details about
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;; Org syntax.
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;;
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;; Lisp-wise, a syntax object can be represented as a list.
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;; It follows the pattern (TYPE PROPERTIES CONTENTS), where:
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;; TYPE is a symbol describing the object.
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;; PROPERTIES is the property list attached to it. See docstring of
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;; appropriate parsing function to get an exhaustive list.
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;; CONTENTS is a list of syntax objects or raw strings contained
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;; in the current object, when applicable.
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;;
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;; For the whole document, TYPE is `org-data' and PROPERTIES is nil.
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;;
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;; The first part of this file defines constants for the Org syntax,
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;; while the second one provide accessors and setters functions.
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;;
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;; The next part implements a parser and an interpreter for each
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;; element and object type in Org syntax.
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;;
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;; The following part creates a fully recursive buffer parser. It
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;; also provides a tool to map a function to elements or objects
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;; matching some criteria in the parse tree. Functions of interest
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;; are `org-element-parse-buffer', `org-element-map' and, to a lesser
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;; extent, `org-element-parse-secondary-string'.
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;;
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;; The penultimate part is the cradle of an interpreter for the
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;; obtained parse tree: `org-element-interpret-data'.
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;;
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;; The library ends by furnishing `org-element-at-point' function, and
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;; a way to give information about document structure around point
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;; with `org-element-context'. A cache mechanism is also provided for
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;; these functions.
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;;; Code:
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(require 'org-macs)
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(org-assert-version)
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(require 'avl-tree)
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(require 'ring)
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(require 'cl-lib)
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(require 'ol)
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(require 'org)
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(require 'org-persist)
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(require 'org-compat)
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(require 'org-entities)
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(require 'org-footnote)
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(require 'org-list)
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(require 'org-macs)
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(require 'org-table)
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(require 'org-fold-core)
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(declare-function org-at-heading-p "org" (&optional _))
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(declare-function org-escape-code-in-string "org-src" (s))
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(declare-function org-macro-escape-arguments "org-macro" (&rest args))
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(declare-function org-macro-extract-arguments "org-macro" (s))
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(declare-function org-reduced-level "org" (l))
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(declare-function org-unescape-code-in-string "org-src" (s))
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(declare-function org-inlinetask-outline-regexp "org-inlinetask" ())
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(declare-function outline-next-heading "outline" ())
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(declare-function outline-previous-heading "outline" ())
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(defvar org-complex-heading-regexp)
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(defvar org-done-keywords)
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(defvar org-edit-src-content-indentation)
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(defvar org-match-substring-regexp)
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(defvar org-odd-levels-only)
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(defvar org-property-drawer-re)
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(defvar org-property-format)
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(defvar org-property-re)
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(defvar org-src-preserve-indentation)
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(defvar org-tags-column)
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(defvar org-todo-regexp)
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(defvar org-ts-regexp-both)
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;;; Definitions And Rules
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;;
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;; Define elements, greater elements and specify recursive objects,
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;; along with the affiliated keywords recognized. Also set up
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;; restrictions on recursive objects combinations.
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;;
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;; `org-element-update-syntax' builds proper syntax regexps according
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;; to current setup.
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(defconst org-element-archive-tag "ARCHIVE"
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"Tag marking a substree as archived.")
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(defconst org-element-citation-key-re
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(rx "@" (group (one-or-more (any word "-.:?!`'/*@+|(){}<>&_^$#%~"))))
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"Regexp matching a citation key.
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Key is located in match group 1.")
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(defconst org-element-citation-prefix-re
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(rx "[cite"
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(opt "/" (group (one-or-more (any "/_-" alnum)))) ;style
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":"
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(zero-or-more (any "\t\n ")))
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"Regexp matching a citation prefix.
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Style, if any, is located in match group 1.")
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(defconst org-element-clock-line-re
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(rx-to-string
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`(seq
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line-start (0+ (or ?\t ?\s))
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"CLOCK: "
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(regexp ,org-ts-regexp-inactive)
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(opt "--"
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(regexp ,org-ts-regexp-inactive)
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(1+ (or ?\t ?\s)) "=>" (1+ (or ?\t ?\s))
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(1+ digit) ":" digit digit)
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(0+ (or ?\t ?\s))
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line-end))
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"Regexp matching a clock line.")
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(defconst org-element-comment-string "COMMENT"
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"String marker for commented headlines.")
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(defconst org-element-closed-keyword "CLOSED:"
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"Keyword used to close TODO entries.")
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(defconst org-element-deadline-keyword "DEADLINE:"
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"Keyword used to mark deadline entries.")
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(defconst org-element-scheduled-keyword "SCHEDULED:"
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"Keyword used to mark scheduled entries.")
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(defconst org-element-planning-keywords-re
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(regexp-opt (list org-element-closed-keyword
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org-element-deadline-keyword
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org-element-scheduled-keyword))
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"Regexp matching any planning line keyword.")
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(defconst org-element-planning-line-re
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(rx-to-string
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`(seq line-start (0+ (any ?\s ?\t))
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(group (regexp ,org-element-planning-keywords-re))))
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"Regexp matching a planning line.")
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(defconst org-element-drawer-re
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(rx line-start (0+ (any ?\s ?\t))
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":" (group (1+ (any ?- ?_ word))) ":"
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(0+ (any ?\s ?\t)) line-end)
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"Regexp matching opening or closing line of a drawer.
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Drawer's name is located in match group 1.")
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(defconst org-element-dynamic-block-open-re
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(rx line-start (0+ (any ?\s ?\t))
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"#+BEGIN:" (0+ (any ?\s ?\t))
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(group (1+ word))
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(opt
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(1+ (any ?\s ?\t))
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(group (1+ nonl))))
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"Regexp matching the opening line of a dynamic block.
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Dynamic block's name is located in match group 1.
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Parameters are in match group 2.")
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(defconst org-element-headline-re
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(rx line-start (1+ "*") " ")
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"Regexp matching a headline.")
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(defvar org-element-paragraph-separate nil
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"Regexp to separate paragraphs in an Org buffer.
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In the case of lines starting with \"#\" and \":\", this regexp
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is not sufficient to know if point is at a paragraph ending. See
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`org-element-paragraph-parser' for more information.")
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(defvar org-element--object-regexp nil
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"Regexp possibly matching the beginning of an object.
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This regexp allows false positives. Dedicated parser (e.g.,
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`org-element-bold-parser') will take care of further filtering.
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Radio links are not matched by this regexp, as they are treated
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specially in `org-element--object-lex'.")
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(defun org-element--set-regexps ()
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"Build variable syntax regexps."
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(setq org-element-paragraph-separate
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(concat "^\\(?:"
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;; Headlines, inlinetasks.
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"\\*+ " "\\|"
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;; Footnote definitions.
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"\\[fn:[-_[:word:]]+\\]" "\\|"
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;; Diary sexps.
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"%%(" "\\|"
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"[ \t]*\\(?:"
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;; Empty lines.
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"$" "\\|"
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;; Tables (any type).
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"|" "\\|"
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"\\+\\(?:-+\\+\\)+[ \t]*$" "\\|"
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;; Comments, keyword-like or block-like constructs.
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;; Blocks and keywords with dual values need to be
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;; double-checked.
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"#\\(?: \\|$\\|\\+\\(?:"
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"BEGIN_\\S-+" "\\|"
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"\\S-+\\(?:\\[.*\\]\\)?:[ \t]*\\)\\)"
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"\\|"
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;; Drawers (any type) and fixed-width areas. Drawers
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;; need to be double-checked.
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":\\(?: \\|$\\|[-_[:word:]]+:[ \t]*$\\)" "\\|"
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;; Horizontal rules.
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"-\\{5,\\}[ \t]*$" "\\|"
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;; LaTeX environments.
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"\\\\begin{\\([A-Za-z0-9*]+\\)}" "\\|"
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;; Clock lines.
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org-element-clock-line-re "\\|"
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;; Lists.
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(let ((term (pcase org-plain-list-ordered-item-terminator
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(?\) ")") (?. "\\.") (_ "[.)]")))
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(alpha (and org-list-allow-alphabetical "\\|[A-Za-z]")))
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(concat "\\(?:[-+*]\\|\\(?:[0-9]+" alpha "\\)" term "\\)"
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"\\(?:[ \t]\\|$\\)"))
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"\\)\\)")
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org-element--object-regexp
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(mapconcat #'identity
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(let ((link-types (regexp-opt (org-link-types))))
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(list
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;; Sub/superscript.
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"\\(?:[_^][-{(*+.,[:alnum:]]\\)"
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;; Bold, code, italic, strike-through, underline
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;; and verbatim.
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(rx (or "*" "~" "=" "+" "_" "/") (not space))
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;; Plain links.
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(concat "\\<" link-types ":")
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;; Objects starting with "[": citations,
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;; footnote reference, statistics cookie,
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;; timestamp (inactive) and regular link.
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(format "\\[\\(?:%s\\)"
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(mapconcat
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#'identity
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(list "cite[:/]"
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"fn:"
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"\\(?:[0-9]\\|\\(?:%\\|/[0-9]*\\)\\]\\)"
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"\\[")
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"\\|"))
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;; Objects starting with "@": export snippets.
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"@@"
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;; Objects starting with "{": macro.
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"{{{"
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;; Objects starting with "<" : timestamp
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;; (active, diary), target, radio target and
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;; angular links.
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(concat "<\\(?:%%\\|<\\|[0-9]\\|" link-types "\\)")
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;; Objects starting with "$": latex fragment.
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"\\$"
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;; Objects starting with "\": line break,
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;; entity, latex fragment.
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"\\\\\\(?:[a-zA-Z[(]\\|\\\\[ \t]*$\\|_ +\\)"
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;; Objects starting with raw text: inline Babel
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;; source block, inline Babel call.
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"\\(?:call\\|src\\)_"))
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"\\|")))
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(org-element--set-regexps)
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;;;###autoload
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(defun org-element-update-syntax ()
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"Update parser internals."
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(interactive)
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(org-element--set-regexps)
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(org-element-cache-reset 'all))
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(defconst org-element-all-elements
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'(babel-call center-block clock comment comment-block diary-sexp drawer
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dynamic-block example-block export-block fixed-width
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footnote-definition headline horizontal-rule inlinetask item
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keyword latex-environment node-property paragraph plain-list
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planning property-drawer quote-block section
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special-block src-block table table-row verse-block)
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"Complete list of element types.")
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(defconst org-element-greater-elements
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'(center-block drawer dynamic-block footnote-definition headline inlinetask
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item plain-list property-drawer quote-block section
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special-block table org-data)
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"List of recursive element types aka Greater Elements.")
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(defconst org-element-all-objects
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'(bold citation citation-reference code entity export-snippet
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footnote-reference inline-babel-call inline-src-block italic line-break
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latex-fragment link macro radio-target statistics-cookie strike-through
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subscript superscript table-cell target timestamp underline verbatim)
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"Complete list of object types.")
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(defconst org-element-recursive-objects
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'(bold citation footnote-reference italic link subscript radio-target
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strike-through superscript table-cell underline)
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"List of recursive object types.")
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(defconst org-element-object-containers
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(append org-element-recursive-objects '(paragraph table-row verse-block))
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"List of object or element types that can directly contain objects.")
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(defconst org-element-affiliated-keywords
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'("CAPTION" "DATA" "HEADER" "HEADERS" "LABEL" "NAME" "PLOT" "RESNAME" "RESULT"
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"RESULTS" "SOURCE" "SRCNAME" "TBLNAME")
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"List of affiliated keywords as strings.
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By default, all keywords setting attributes (e.g., \"ATTR_LATEX\")
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are affiliated keywords and need not to be in this list.")
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(defconst org-element-keyword-translation-alist
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'(("DATA" . "NAME") ("LABEL" . "NAME") ("RESNAME" . "NAME")
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("SOURCE" . "NAME") ("SRCNAME" . "NAME") ("TBLNAME" . "NAME")
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("RESULT" . "RESULTS") ("HEADERS" . "HEADER"))
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"Alist of usual translations for keywords.
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The key is the old name and the value the new one. The property
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holding their value will be named after the translated name.")
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(defconst org-element-multiple-keywords '("CAPTION" "HEADER")
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"List of affiliated keywords that can occur more than once in an element.
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Their value will be consed into a list of strings, which will be
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returned as the value of the property.
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This list is checked after translations have been applied. See
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`org-element-keyword-translation-alist'.
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By default, all keywords setting attributes (e.g., \"ATTR_LATEX\")
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allow multiple occurrences and need not to be in this list.")
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(defconst org-element-parsed-keywords '("CAPTION")
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"List of affiliated keywords whose value can be parsed.
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Their value will be stored as a secondary string: a list of
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strings and objects.
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This list is checked after translations have been applied. See
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`org-element-keyword-translation-alist'.")
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(defconst org-element--parsed-properties-alist
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(mapcar (lambda (k) (cons k (intern (concat ":" (downcase k)))))
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org-element-parsed-keywords)
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"Alist of parsed keywords and associated properties.
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This is generated from `org-element-parsed-keywords', which
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see.")
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(defconst org-element-dual-keywords '("CAPTION" "RESULTS")
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"List of affiliated keywords which can have a secondary value.
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In Org syntax, they can be written with optional square brackets
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before the colons. For example, RESULTS keyword can be
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associated to a hash value with the following:
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#+RESULTS[hash-string]: some-source
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This list is checked after translations have been applied. See
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`org-element-keyword-translation-alist'.")
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(defconst org-element--affiliated-re
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(format "[ \t]*#\\+\\(?:%s\\):[ \t]*"
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(concat
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;; Dual affiliated keywords.
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(format "\\(?1:%s\\)\\(?:\\[\\(.*\\)\\]\\)?"
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(regexp-opt org-element-dual-keywords))
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"\\|"
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;; Regular affiliated keywords.
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(format "\\(?1:%s\\)"
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(regexp-opt
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(cl-remove-if
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(lambda (k) (member k org-element-dual-keywords))
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org-element-affiliated-keywords)))
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"\\|"
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;; Export attributes.
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"\\(?1:ATTR_[-_A-Za-z0-9]+\\)"))
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"Regexp matching any affiliated keyword.
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Keyword name is put in match group 1. Moreover, if keyword
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belongs to `org-element-dual-keywords', put the dual value in
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match group 2.
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Don't modify it, set `org-element-affiliated-keywords' instead.")
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(defconst org-element-object-restrictions
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(let* ((minimal-set '(bold code entity italic latex-fragment strike-through
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subscript superscript underline verbatim))
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(standard-set
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(remq 'citation-reference (remq 'table-cell org-element-all-objects)))
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(standard-set-no-line-break (remq 'line-break standard-set)))
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`((bold ,@standard-set)
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(citation citation-reference)
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(citation-reference ,@minimal-set)
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(footnote-reference ,@standard-set)
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(headline ,@standard-set-no-line-break)
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(inlinetask ,@standard-set-no-line-break)
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(italic ,@standard-set)
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(item ,@standard-set-no-line-break)
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(keyword ,@(remq 'footnote-reference standard-set))
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;; Ignore all links in a link description. Also ignore
|
||
;; radio-targets and line breaks.
|
||
(link export-snippet inline-babel-call inline-src-block macro
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statistics-cookie ,@minimal-set)
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||
(paragraph ,@standard-set)
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;; Remove any variable object from radio target as it would
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;; prevent it from being properly recognized.
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(radio-target ,@minimal-set)
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(strike-through ,@standard-set)
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(subscript ,@standard-set)
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(superscript ,@standard-set)
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;; Ignore inline babel call and inline source block as formulas
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||
;; are possible. Also ignore line breaks and statistics
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;; cookies.
|
||
(table-cell citation export-snippet footnote-reference link macro
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||
radio-target target timestamp ,@minimal-set)
|
||
(table-row table-cell)
|
||
(underline ,@standard-set)
|
||
(verse-block ,@standard-set)))
|
||
"Alist of objects restrictions.
|
||
|
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key is an element or object type containing objects and value is
|
||
a list of types that can be contained within an element or object
|
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of such type.
|
||
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This alist also applies to secondary string. For example, an
|
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`headline' type element doesn't directly contain objects, but
|
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still has an entry since one of its properties (`:title') does.")
|
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|
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(defconst org-element-secondary-value-alist
|
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'((citation :prefix :suffix)
|
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(headline :title)
|
||
(inlinetask :title)
|
||
(item :tag)
|
||
(citation-reference :prefix :suffix))
|
||
"Alist between element types and locations of secondary values.")
|
||
|
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(defconst org-element--pair-round-table
|
||
(let ((table (make-char-table 'syntax-table '(2))))
|
||
(modify-syntax-entry ?\( "()" table)
|
||
(modify-syntax-entry ?\) ")(" table)
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||
table)
|
||
"Table used internally to pair only round brackets.")
|
||
|
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(defconst org-element--pair-square-table
|
||
(let ((table (make-char-table 'syntax-table '(2))))
|
||
(modify-syntax-entry ?\[ "(]" table)
|
||
(modify-syntax-entry ?\] ")[" table)
|
||
table)
|
||
"Table used internally to pair only square brackets.")
|
||
|
||
(defconst org-element--pair-curly-table
|
||
(let ((table (make-char-table 'syntax-table '(2))))
|
||
(modify-syntax-entry ?\{ "(}" table)
|
||
(modify-syntax-entry ?\} "){" table)
|
||
table)
|
||
"Table used internally to pair only curly brackets.")
|
||
|
||
(defun org-element--parse-paired-brackets (char)
|
||
"Parse paired brackets at point.
|
||
CHAR is the opening bracket to consider, as a character. Return
|
||
contents between brackets, as a string, or nil. Also move point
|
||
past the brackets."
|
||
(when (eq char (char-after))
|
||
(let ((syntax-table (pcase char
|
||
(?\{ org-element--pair-curly-table)
|
||
(?\[ org-element--pair-square-table)
|
||
(?\( org-element--pair-round-table)
|
||
(_ nil)))
|
||
(pos (point)))
|
||
(when syntax-table
|
||
(with-syntax-table syntax-table
|
||
(let ((end (ignore-errors (scan-lists pos 1 0))))
|
||
(when end
|
||
(goto-char end)
|
||
(buffer-substring-no-properties (1+ pos) (1- end)))))))))
|
||
|
||
|
||
;;; Accessors and Setters
|
||
;;
|
||
;; Provide four accessors: `org-element-type', `org-element-property'
|
||
;; `org-element-contents' and `org-element-restriction'.
|
||
;;
|
||
;; Setter functions allow modification of elements by side effect.
|
||
;; There is `org-element-put-property', `org-element-set-contents'.
|
||
;; These low-level functions are useful to build a parse tree.
|
||
;;
|
||
;; `org-element-adopt-elements', `org-element-set-element',
|
||
;; `org-element-extract-element' and `org-element-insert-before' are
|
||
;; high-level functions useful to modify a parse tree.
|
||
;;
|
||
;; `org-element-secondary-p' is a predicate used to know if a given
|
||
;; object belongs to a secondary string. `org-element-class' tells if
|
||
;; some parsed data is an element or an object, handling pseudo
|
||
;; elements and objects. `org-element-copy' returns an element or
|
||
;; object, stripping its parent property in the process.
|
||
|
||
(defsubst org-element-type (element)
|
||
"Return type of ELEMENT.
|
||
|
||
The function returns the type of the element or object provided.
|
||
It can also return the following special value:
|
||
`plain-text' for a string
|
||
`org-data' for a complete document
|
||
nil in any other case."
|
||
(cond
|
||
((not (consp element)) (and (stringp element) 'plain-text))
|
||
((symbolp (car element)) (car element))))
|
||
|
||
(defsubst org-element-property (property element)
|
||
"Extract the value from the PROPERTY of an ELEMENT."
|
||
(if (stringp element) (get-text-property 0 property element)
|
||
(plist-get (nth 1 element) property)))
|
||
|
||
(defsubst org-element-contents (element)
|
||
"Extract contents from an ELEMENT."
|
||
(cond ((not (consp element)) nil)
|
||
((symbolp (car element)) (nthcdr 2 element))
|
||
(t element)))
|
||
|
||
(defsubst org-element-restriction (element)
|
||
"Return restriction associated to ELEMENT.
|
||
ELEMENT can be an element, an object or a symbol representing an
|
||
element or object type."
|
||
(cdr (assq (if (symbolp element) element (org-element-type element))
|
||
org-element-object-restrictions)))
|
||
|
||
(defsubst org-element-put-property (element property value)
|
||
"In ELEMENT set PROPERTY to VALUE.
|
||
Return modified element."
|
||
(if (stringp element) (org-add-props element nil property value)
|
||
(setcar (cdr element) (plist-put (nth 1 element) property value))
|
||
element))
|
||
|
||
(defsubst org-element-set-contents (element &rest contents)
|
||
"Set ELEMENT's contents to CONTENTS.
|
||
Return ELEMENT."
|
||
(cond ((null element) contents)
|
||
((not (symbolp (car element))) contents)
|
||
((cdr element) (setcdr (cdr element) contents) element)
|
||
(t (nconc element contents))))
|
||
|
||
(defun org-element-secondary-p (object)
|
||
"Non-nil when OBJECT directly belongs to a secondary string.
|
||
Return value is the property name, as a keyword, or nil."
|
||
(let* ((parent (org-element-property :parent object))
|
||
(properties (cdr (assq (org-element-type parent)
|
||
org-element-secondary-value-alist))))
|
||
(catch 'exit
|
||
(dolist (p properties)
|
||
(and (memq object (org-element-property p parent))
|
||
(throw 'exit p))))))
|
||
|
||
(defsubst org-element-class (datum &optional parent)
|
||
"Return class for ELEMENT, as a symbol.
|
||
Class is either `element' or `object'. Optional argument PARENT
|
||
is the element or object containing DATUM. It defaults to the
|
||
value of DATUM `:parent' property."
|
||
(let ((type (org-element-type datum))
|
||
(parent (or parent (org-element-property :parent datum))))
|
||
(cond
|
||
;; Trivial cases.
|
||
((memq type org-element-all-objects) 'object)
|
||
((memq type org-element-all-elements) 'element)
|
||
;; Special cases.
|
||
((eq type 'org-data) 'element)
|
||
((eq type 'plain-text) 'object)
|
||
((not type) 'object)
|
||
;; Pseudo object or elements. Make a guess about its class.
|
||
;; Basically a pseudo object is contained within another object,
|
||
;; a secondary string or a container element.
|
||
((not parent) 'element)
|
||
(t
|
||
(let ((parent-type (org-element-type parent)))
|
||
(cond ((not parent-type) 'object)
|
||
((memq parent-type org-element-object-containers) 'object)
|
||
((org-element-secondary-p datum) 'object)
|
||
(t 'element)))))))
|
||
|
||
(defsubst org-element-adopt-elements (parent &rest children)
|
||
"Append elements to the contents of another element.
|
||
|
||
PARENT is an element or object. CHILDREN can be elements,
|
||
objects, or a strings.
|
||
|
||
The function takes care of setting `:parent' property for CHILD.
|
||
Return parent element."
|
||
(declare (indent 1))
|
||
(if (not children) parent
|
||
;; Link every child to PARENT. If PARENT is nil, it is a secondary
|
||
;; string: parent is the list itself.
|
||
(dolist (child children)
|
||
(when child
|
||
(org-element-put-property child :parent (or parent children))))
|
||
;; Add CHILDREN at the end of PARENT contents.
|
||
(when parent
|
||
(apply #'org-element-set-contents
|
||
parent
|
||
(nconc (org-element-contents parent) children)))
|
||
;; Return modified PARENT element.
|
||
(or parent children)))
|
||
|
||
(defun org-element-extract-element (element)
|
||
"Extract ELEMENT from parse tree.
|
||
Remove element from the parse tree by side-effect, and return it
|
||
with its `:parent' property stripped out."
|
||
(let ((parent (org-element-property :parent element))
|
||
(secondary (org-element-secondary-p element)))
|
||
(if secondary
|
||
(org-element-put-property
|
||
parent secondary
|
||
(delq element (org-element-property secondary parent)))
|
||
(apply #'org-element-set-contents
|
||
parent
|
||
(delq element (org-element-contents parent))))
|
||
;; Return ELEMENT with its :parent removed.
|
||
(org-element-put-property element :parent nil)))
|
||
|
||
(defun org-element-insert-before (element location)
|
||
"Insert ELEMENT before LOCATION in parse tree.
|
||
LOCATION is an element, object or string within the parse tree.
|
||
Parse tree is modified by side effect."
|
||
(let* ((parent (org-element-property :parent location))
|
||
(property (org-element-secondary-p location))
|
||
(siblings (if property (org-element-property property parent)
|
||
(org-element-contents parent)))
|
||
;; Special case: LOCATION is the first element of an
|
||
;; independent secondary string (e.g. :title property). Add
|
||
;; ELEMENT in-place.
|
||
(specialp (and (not property)
|
||
(eq siblings parent)
|
||
(eq (car parent) location))))
|
||
;; Install ELEMENT at the appropriate LOCATION within SIBLINGS.
|
||
(cond (specialp)
|
||
((or (null siblings) (eq (car siblings) location))
|
||
(push element siblings))
|
||
((null location) (nconc siblings (list element)))
|
||
(t
|
||
(let ((index (cl-position location siblings)))
|
||
(unless index (error "No location found to insert element"))
|
||
(push element (cdr (nthcdr (1- index) siblings))))))
|
||
;; Store SIBLINGS at appropriate place in parse tree.
|
||
(cond
|
||
(specialp (setcdr parent (copy-sequence parent)) (setcar parent element))
|
||
(property (org-element-put-property parent property siblings))
|
||
(t (apply #'org-element-set-contents parent siblings)))
|
||
;; Set appropriate :parent property.
|
||
(org-element-put-property element :parent parent)))
|
||
|
||
(defconst org-element--cache-element-properties
|
||
'(:cached
|
||
:org-element--cache-sync-key)
|
||
"List of element properties used internally by cache.")
|
||
|
||
(defun org-element-set-element (old new)
|
||
"Replace element or object OLD with element or object NEW.
|
||
The function takes care of setting `:parent' property for NEW."
|
||
;; Ensure OLD and NEW have the same parent.
|
||
(org-element-put-property new :parent (org-element-property :parent old))
|
||
(dolist (p org-element--cache-element-properties)
|
||
(when (org-element-property p old)
|
||
(org-element-put-property new p (org-element-property p old))))
|
||
(if (or (memq (org-element-type old) '(plain-text nil))
|
||
(memq (org-element-type new) '(plain-text nil)))
|
||
;; We cannot replace OLD with NEW since one of them is not an
|
||
;; object or element. We take the long path.
|
||
(progn (org-element-insert-before new old)
|
||
(org-element-extract-element old))
|
||
;; Since OLD is going to be changed into NEW by side-effect, first
|
||
;; make sure that every element or object within NEW has OLD as
|
||
;; parent.
|
||
(dolist (blob (org-element-contents new))
|
||
(org-element-put-property blob :parent old))
|
||
;; Transfer contents.
|
||
(apply #'org-element-set-contents old (org-element-contents new))
|
||
;; Overwrite OLD's properties with NEW's.
|
||
(setcar (cdr old) (nth 1 new))
|
||
;; Transfer type.
|
||
(setcar old (car new))))
|
||
|
||
(defun org-element-create (type &optional props &rest children)
|
||
"Create a new element of type TYPE.
|
||
Optional argument PROPS, when non-nil, is a plist defining the
|
||
properties of the element. CHILDREN can be elements, objects or
|
||
strings."
|
||
(apply #'org-element-adopt-elements (list type props) children))
|
||
|
||
(defun org-element-copy (datum)
|
||
"Return a copy of DATUM.
|
||
DATUM is an element, object, string or nil. `:parent' property
|
||
is cleared and contents are removed in the process."
|
||
(when datum
|
||
(let ((type (org-element-type datum)))
|
||
(pcase type
|
||
(`org-data (list 'org-data nil))
|
||
(`plain-text (substring-no-properties datum))
|
||
(`nil (copy-sequence datum))
|
||
(_
|
||
(let ((element-copy (list type (plist-put (copy-sequence (nth 1 datum)) :parent nil))))
|
||
;; We cannot simply return the copies property list. When
|
||
;; DATUM is i.e. a headline, it's property list (`:title'
|
||
;; in case of headline) can contain parsed objects. The
|
||
;; objects will contain `:parent' property set to the DATUM
|
||
;; itself. When copied, these inner `:parent' property
|
||
;; values will contain incorrect object decoupled from
|
||
;; DATUM. Changes to the DATUM copy will not longer be
|
||
;; reflected in the `:parent' properties. So, we need to
|
||
;; reassign inner `:parent' properties to the DATUM copy
|
||
;; explicitly.
|
||
(org-element-map element-copy (cons 'plain-text org-element-all-objects)
|
||
(lambda (obj) (when (equal datum (org-element-property :parent obj))
|
||
(org-element-put-property obj :parent element-copy))))
|
||
element-copy))))))
|
||
|
||
|
||
|
||
;;; Greater elements
|
||
;;
|
||
;; For each greater element type, we define a parser and an
|
||
;; interpreter.
|
||
;;
|
||
;; A parser returns the element or object as the list described above.
|
||
;; Most of them accepts no argument. Though, exceptions exist. Hence
|
||
;; every element containing a secondary string (see
|
||
;; `org-element-secondary-value-alist') will accept an optional
|
||
;; argument to toggle parsing of these secondary strings. Moreover,
|
||
;; `item' parser requires current list's structure as its first
|
||
;; element.
|
||
;;
|
||
;; An interpreter accepts two arguments: the list representation of
|
||
;; the element or object, and its contents. The latter may be nil,
|
||
;; depending on the element or object considered. It returns the
|
||
;; appropriate Org syntax, as a string.
|
||
;;
|
||
;; Parsing functions must follow the naming convention:
|
||
;; org-element-TYPE-parser, where TYPE is greater element's type, as
|
||
;; defined in `org-element-greater-elements'.
|
||
;;
|
||
;; Similarly, interpreting functions must follow the naming
|
||
;; convention: org-element-TYPE-interpreter.
|
||
;;
|
||
;; With the exception of `headline' and `item' types, greater elements
|
||
;; cannot contain other greater elements of their own type.
|
||
;;
|
||
;; Beside implementing a parser and an interpreter, adding a new
|
||
;; greater element requires tweaking `org-element--current-element'.
|
||
;; Moreover, the newly defined type must be added to both
|
||
;; `org-element-all-elements' and `org-element-greater-elements'.
|
||
|
||
|
||
;;;; Center Block
|
||
|
||
(defun org-element-center-block-parser (limit affiliated)
|
||
"Parse a center block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `center-block' and CDR is a plist
|
||
containing `:begin', `:end', `:contents-begin', `:contents-end',
|
||
`:post-blank' and `:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the block."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(re-search-forward "^[ \t]*#\\+END_CENTER[ \t]*$" limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((block-end-line (match-beginning 0)))
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
;; Empty blocks have no contents.
|
||
(contents-begin (progn (forward-line)
|
||
(and (< (point) block-end-line)
|
||
(point))))
|
||
(contents-end (and contents-begin block-end-line))
|
||
(pos-before-blank (progn (goto-char block-end-line)
|
||
(forward-line)
|
||
(point)))
|
||
(end (save-excursion
|
||
(skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'center-block
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))))
|
||
|
||
(defun org-element-center-block-interpreter (_ contents)
|
||
"Interpret a center-block element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(format "#+begin_center\n%s#+end_center" contents))
|
||
|
||
|
||
;;;; Drawer
|
||
|
||
(defun org-element-drawer-parser (limit affiliated)
|
||
"Parse a drawer.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `drawer' and CDR is a plist containing
|
||
`:drawer-name', `:begin', `:end', `:contents-begin',
|
||
`:contents-end', `:post-blank' and `:post-affiliated' keywords.
|
||
|
||
Assume point is at beginning of drawer."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(goto-char (min limit (line-end-position)))
|
||
(re-search-forward "^[ \t]*:END:[ \t]*$" limit t)))
|
||
;; Incomplete drawer: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(save-excursion
|
||
(let* ((drawer-end-line (match-beginning 0))
|
||
(name
|
||
(progn
|
||
(looking-at org-element-drawer-re)
|
||
(match-string-no-properties 1)))
|
||
(begin (car affiliated))
|
||
(post-affiliated (point))
|
||
;; Empty drawers have no contents.
|
||
(contents-begin (progn (forward-line)
|
||
(and (< (point) drawer-end-line)
|
||
(point))))
|
||
(contents-end (and contents-begin drawer-end-line))
|
||
(pos-before-blank (progn (goto-char drawer-end-line)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'drawer
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:drawer-name name
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))))
|
||
|
||
(defun org-element-drawer-interpreter (drawer contents)
|
||
"Interpret DRAWER element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(format ":%s:\n%s:END:"
|
||
(org-element-property :drawer-name drawer)
|
||
contents))
|
||
|
||
|
||
;;;; Dynamic Block
|
||
|
||
(defun org-element-dynamic-block-parser (limit affiliated)
|
||
"Parse a dynamic block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `dynamic-block' and CDR is a plist
|
||
containing `:block-name', `:begin', `:end', `:contents-begin',
|
||
`:contents-end', `:arguments', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at beginning of dynamic block."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(re-search-forward "^[ \t]*#\\+END:?[ \t]*$" limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((block-end-line (match-beginning 0)))
|
||
(save-excursion
|
||
(let* ((name (progn
|
||
(looking-at org-element-dynamic-block-open-re)
|
||
(match-string-no-properties 1)))
|
||
(arguments (match-string-no-properties 2))
|
||
(begin (car affiliated))
|
||
(post-affiliated (point))
|
||
;; Empty blocks have no contents.
|
||
(contents-begin (progn (forward-line)
|
||
(and (< (point) block-end-line)
|
||
(point))))
|
||
(contents-end (and contents-begin block-end-line))
|
||
(pos-before-blank (progn (goto-char block-end-line)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'dynamic-block
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:block-name name
|
||
:arguments arguments
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated)))))))))
|
||
|
||
(defun org-element-dynamic-block-interpreter (dynamic-block contents)
|
||
"Interpret DYNAMIC-BLOCK element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(format "#+begin: %s%s\n%s#+end:"
|
||
(org-element-property :block-name dynamic-block)
|
||
(let ((args (org-element-property :arguments dynamic-block)))
|
||
(if args (concat " " args) ""))
|
||
contents))
|
||
|
||
|
||
;;;; Footnote Definition
|
||
|
||
(defconst org-element--footnote-separator
|
||
(concat org-element-headline-re "\\|"
|
||
org-footnote-definition-re "\\|"
|
||
"^\\([ \t]*\n\\)\\{2,\\}")
|
||
"Regexp used as a footnote definition separator.")
|
||
|
||
(defun org-element-footnote-definition-parser (limit affiliated)
|
||
"Parse a footnote definition.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `footnote-definition' and CDR is
|
||
a plist containing `:label', `:begin' `:end', `:contents-begin',
|
||
`:contents-end', `:pre-blank',`:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the footnote definition."
|
||
(save-excursion
|
||
(let* ((label (progn (looking-at org-footnote-definition-re)
|
||
(match-string-no-properties 1)))
|
||
(begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(end
|
||
(save-excursion
|
||
(end-of-line)
|
||
(cond
|
||
((not
|
||
(re-search-forward org-element--footnote-separator limit t))
|
||
limit)
|
||
((eq ?\[ (char-after (match-beginning 0)))
|
||
;; At a new footnote definition, make sure we end
|
||
;; before any affiliated keyword above.
|
||
(forward-line -1)
|
||
(while (and (> (point) post-affiliated)
|
||
(looking-at-p org-element--affiliated-re))
|
||
(forward-line -1))
|
||
(line-beginning-position 2))
|
||
((eq ?* (char-after (match-beginning 0))) (match-beginning 0))
|
||
(t (skip-chars-forward " \r\t\n" limit)
|
||
(if (= limit (point)) limit (line-beginning-position))))))
|
||
(pre-blank 0)
|
||
(contents-begin
|
||
(progn (search-forward "]")
|
||
(skip-chars-forward " \r\t\n" end)
|
||
(cond ((= (point) end) nil)
|
||
((= (line-beginning-position) post-affiliated) (point))
|
||
(t
|
||
(setq pre-blank
|
||
(count-lines (line-beginning-position) begin))
|
||
(line-beginning-position)))))
|
||
(contents-end
|
||
(progn (goto-char end)
|
||
(skip-chars-backward " \r\t\n")
|
||
(line-beginning-position 2))))
|
||
(list 'footnote-definition
|
||
(nconc
|
||
(list :label label
|
||
:begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end (and contents-begin contents-end)
|
||
:pre-blank pre-blank
|
||
:post-blank (count-lines contents-end end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-footnote-definition-interpreter (footnote-definition contents)
|
||
"Interpret FOOTNOTE-DEFINITION element as Org syntax.
|
||
CONTENTS is the contents of the footnote-definition."
|
||
(let ((pre-blank
|
||
(min (or (org-element-property :pre-blank footnote-definition)
|
||
;; 0 is specific to paragraphs at the beginning of
|
||
;; the footnote definition, so we use 1 as
|
||
;; a fall-back value, which is more universal.
|
||
1)
|
||
;; Footnote ends after more than two consecutive empty
|
||
;; lines: limit ourselves to 2 newline characters.
|
||
2)))
|
||
(concat (format "[fn:%s]" (org-element-property :label footnote-definition))
|
||
(if (= pre-blank 0) (concat " " (org-trim contents))
|
||
(concat (make-string pre-blank ?\n) contents)))))
|
||
|
||
;;;; Headline
|
||
|
||
(defun org-element--get-node-properties (&optional at-point-p?)
|
||
"Return node properties for headline or property drawer at point.
|
||
Upcase property names. It avoids confusion between properties
|
||
obtained through property drawer and default properties from the
|
||
parser (e.g. `:end' and :END:). Return value is a plist.
|
||
|
||
When AT-POINT-P? is nil, assume that point as at a headline. Otherwise
|
||
parse properties for property drawer at point."
|
||
(save-excursion
|
||
(unless at-point-p?
|
||
(forward-line)
|
||
(when (looking-at-p org-element-planning-line-re) (forward-line)))
|
||
(when (looking-at org-property-drawer-re)
|
||
(forward-line)
|
||
(let ((end (match-end 0)) properties)
|
||
(while (< (line-end-position) end)
|
||
(looking-at org-property-re)
|
||
(let* ((property-name (concat ":" (upcase (match-string 2))))
|
||
(property-name-symbol (intern property-name))
|
||
(property-value (match-string-no-properties 3)))
|
||
(cond
|
||
((and (plist-member properties property-name-symbol)
|
||
(string-match-p "\\+$" property-name))
|
||
(let ((val (plist-get properties property-name-symbol)))
|
||
(if (listp val)
|
||
(setq properties
|
||
(plist-put properties
|
||
property-name-symbol
|
||
(append (plist-get properties property-name-symbol)
|
||
(list property-value))))
|
||
(plist-put properties property-name-symbol (list val property-value)))))
|
||
(t (setq properties (plist-put properties property-name-symbol property-value)))))
|
||
(forward-line))
|
||
properties))))
|
||
|
||
(defun org-element--get-time-properties ()
|
||
"Return time properties associated to headline at point.
|
||
Return value is a plist."
|
||
(save-excursion
|
||
(when (progn (forward-line) (looking-at org-element-planning-line-re))
|
||
(let ((end (line-end-position))
|
||
plist)
|
||
(while (re-search-forward org-element-planning-keywords-re end t)
|
||
(skip-chars-forward " \t")
|
||
(let ((keyword (match-string 0))
|
||
(time (org-element-timestamp-parser)))
|
||
(cond ((equal keyword org-element-scheduled-keyword)
|
||
(setq plist (plist-put plist :scheduled time)))
|
||
((equal keyword org-element-deadline-keyword)
|
||
(setq plist (plist-put plist :deadline time)))
|
||
(t (setq plist (plist-put plist :closed time))))))
|
||
plist))))
|
||
|
||
(defun org-element-headline-parser (&optional _ raw-secondary-p)
|
||
"Parse a headline.
|
||
|
||
Return a list whose CAR is `headline' and CDR is a plist
|
||
containing `:raw-value', `:title', `:begin', `:end',
|
||
`:pre-blank', `:contents-begin' and `:contents-end', `:level',
|
||
`:priority', `:tags', `:todo-keyword', `:todo-type', `:scheduled',
|
||
`:deadline', `:closed', `:archivedp', `:commentedp'
|
||
`:footnote-section-p', `:post-blank' and `:post-affiliated'
|
||
keywords.
|
||
|
||
The plist also contains any property set in the property drawer,
|
||
with its name in upper cases and colons added at the
|
||
beginning (e.g., `:CUSTOM_ID').
|
||
|
||
When RAW-SECONDARY-P is non-nil, headline's title will not be
|
||
parsed as a secondary string, but as a plain string instead.
|
||
|
||
Assume point is at beginning of the headline."
|
||
(save-excursion
|
||
(let* ((begin (point))
|
||
(true-level (prog1 (skip-chars-forward "*")
|
||
(skip-chars-forward " \t")))
|
||
(level (org-reduced-level true-level))
|
||
(todo (and org-todo-regexp
|
||
(let (case-fold-search) (looking-at (concat org-todo-regexp " ")))
|
||
(progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")
|
||
(match-string 1))))
|
||
(todo-type
|
||
(and todo (if (member todo org-done-keywords) 'done 'todo)))
|
||
(priority (and (looking-at "\\[#.\\][ \t]*")
|
||
(progn (goto-char (match-end 0))
|
||
(aref (match-string 0) 2))))
|
||
(commentedp
|
||
(and (let ((case-fold-search nil))
|
||
(looking-at org-element-comment-string))
|
||
(goto-char (match-end 0))
|
||
(when (looking-at-p "\\(?:[ \t]\\|$\\)")
|
||
(point))))
|
||
(title-start (prog1 (point)
|
||
(unless (or todo priority commentedp)
|
||
;; Headline like "* :tag:"
|
||
(skip-chars-backward " \t"))))
|
||
(tags (when (re-search-forward
|
||
"[ \t]+\\(:[[:alnum:]_@#%:]+:\\)[ \t]*$"
|
||
(line-end-position)
|
||
'move)
|
||
(goto-char (match-beginning 0))
|
||
(org-split-string (match-string 1) ":")))
|
||
(title-end (point))
|
||
(raw-value (org-trim
|
||
(buffer-substring-no-properties title-start title-end)))
|
||
(archivedp (member org-element-archive-tag tags))
|
||
(footnote-section-p (and org-footnote-section
|
||
(string= org-footnote-section raw-value)))
|
||
(standard-props (org-element--get-node-properties))
|
||
(time-props (org-element--get-time-properties))
|
||
(end
|
||
(save-excursion
|
||
(let ((re (rx-to-string
|
||
`(seq line-start (** 1 ,true-level "*") " "))))
|
||
(if (re-search-forward re nil t)
|
||
(line-beginning-position)
|
||
(point-max)))))
|
||
(contents-begin (save-excursion
|
||
(forward-line)
|
||
(skip-chars-forward " \r\t\n" end)
|
||
(and (/= (point) end) (line-beginning-position))))
|
||
(contents-end (and contents-begin
|
||
(progn (goto-char end)
|
||
(skip-chars-backward " \r\t\n")
|
||
(line-beginning-position 2))))
|
||
(robust-begin (and contents-begin
|
||
(progn (goto-char contents-begin)
|
||
(when (looking-at-p org-element-planning-line-re)
|
||
(forward-line))
|
||
(when (looking-at org-property-drawer-re)
|
||
(goto-char (match-end 0)))
|
||
;; If there is :pre-blank, we
|
||
;; need to be careful about
|
||
;; robust beginning.
|
||
(max (if (< (+ 2 contents-begin) contents-end)
|
||
(+ 2 contents-begin)
|
||
0)
|
||
(point)))))
|
||
(robust-end (and robust-begin
|
||
(when (> (- contents-end 2) robust-begin)
|
||
(- contents-end 2)))))
|
||
(unless robust-end (setq robust-begin nil))
|
||
(let ((headline
|
||
(list 'headline
|
||
(nconc
|
||
(list :raw-value raw-value
|
||
:begin begin
|
||
:end end
|
||
:pre-blank
|
||
(if (not contents-begin) 0
|
||
(1- (count-lines begin contents-begin)))
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:robust-begin robust-begin
|
||
:robust-end robust-end
|
||
:level level
|
||
:priority priority
|
||
:tags tags
|
||
:todo-keyword todo
|
||
:todo-type todo-type
|
||
:post-blank
|
||
(if contents-end
|
||
(count-lines contents-end end)
|
||
(1- (count-lines begin end)))
|
||
:footnote-section-p footnote-section-p
|
||
:archivedp archivedp
|
||
:commentedp commentedp
|
||
:post-affiliated begin)
|
||
time-props
|
||
standard-props))))
|
||
(org-element-put-property
|
||
headline :title
|
||
(if raw-secondary-p raw-value
|
||
(org-element--parse-objects
|
||
(progn (goto-char title-start)
|
||
(skip-chars-forward " \t")
|
||
(point))
|
||
(progn (goto-char title-end)
|
||
(skip-chars-backward " \t")
|
||
(point))
|
||
nil
|
||
(org-element-restriction 'headline)
|
||
headline)))))))
|
||
|
||
(defun org-element-headline-interpreter (headline contents)
|
||
"Interpret HEADLINE element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(let* ((level (org-element-property :level headline))
|
||
(todo (org-element-property :todo-keyword headline))
|
||
(priority (org-element-property :priority headline))
|
||
(title (org-element-interpret-data
|
||
(org-element-property :title headline)))
|
||
(tags (let ((tag-list (org-element-property :tags headline)))
|
||
(and tag-list
|
||
(format ":%s:" (mapconcat #'identity tag-list ":")))))
|
||
(commentedp (org-element-property :commentedp headline))
|
||
(pre-blank (or (org-element-property :pre-blank headline) 0))
|
||
(heading
|
||
(concat (make-string (if org-odd-levels-only (1- (* level 2)) level)
|
||
?*)
|
||
(and todo (concat " " todo))
|
||
(and commentedp (concat " " org-element-comment-string))
|
||
(and priority (format " [#%c]" priority))
|
||
" "
|
||
(if (and org-footnote-section
|
||
(org-element-property :footnote-section-p headline))
|
||
org-footnote-section
|
||
title))))
|
||
(concat
|
||
heading
|
||
;; Align tags.
|
||
(when tags
|
||
(cond
|
||
((zerop org-tags-column) (format " %s" tags))
|
||
((< org-tags-column 0)
|
||
(concat
|
||
(make-string
|
||
(max (- (+ org-tags-column (length heading) (length tags))) 1)
|
||
?\s)
|
||
tags))
|
||
(t
|
||
(concat
|
||
(make-string (max (- org-tags-column (length heading)) 1) ?\s)
|
||
tags))))
|
||
(make-string (1+ pre-blank) ?\n)
|
||
contents)))
|
||
|
||
;;;; org-data
|
||
|
||
(defun org-element--get-global-node-properties ()
|
||
"Return node properties associated with the whole Org buffer.
|
||
Upcase property names. It avoids confusion between properties
|
||
obtained through property drawer and default properties from the
|
||
parser (e.g. `:end' and :END:). Return value is a plist."
|
||
(org-with-wide-buffer
|
||
(goto-char (point-min))
|
||
(while (and (org-at-comment-p) (bolp)) (forward-line))
|
||
(org-element--get-node-properties t)))
|
||
|
||
|
||
(defvar org-element-org-data-parser--recurse nil)
|
||
(defun org-element-org-data-parser (&optional _)
|
||
"Parse org-data."
|
||
(org-with-wide-buffer
|
||
(let* ((begin 1)
|
||
(contents-begin (progn
|
||
(goto-char 1)
|
||
(org-skip-whitespace)
|
||
(beginning-of-line)
|
||
(point)))
|
||
(end (point-max))
|
||
(pos-before-blank (progn (goto-char (point-max))
|
||
(skip-chars-backward " \r\t\n")
|
||
(line-beginning-position 2)))
|
||
(robust-end (when (> (- pos-before-blank 2) contents-begin)
|
||
(- pos-before-blank 2)))
|
||
(robust-begin (when (and robust-end
|
||
(< (+ 2 contents-begin) pos-before-blank))
|
||
(or
|
||
(org-with-wide-buffer
|
||
(goto-char (point-min))
|
||
(while (and (org-at-comment-p) (bolp)) (forward-line))
|
||
(when (looking-at org-property-drawer-re)
|
||
(goto-char (match-end 0))
|
||
(skip-chars-backward " \t")
|
||
(min robust-end (point))))
|
||
(+ 2 contents-begin))))
|
||
(category (cond ((null org-category)
|
||
(when (org-with-base-buffer nil
|
||
buffer-file-name)
|
||
(file-name-sans-extension
|
||
(file-name-nondirectory
|
||
(org-with-base-buffer nil
|
||
buffer-file-name)))))
|
||
((symbolp org-category) (symbol-name org-category))
|
||
(t org-category)))
|
||
(category (catch 'buffer-category
|
||
(unless org-element-org-data-parser--recurse
|
||
(org-with-point-at end
|
||
;; Avoid recursive calls from
|
||
;; `org-element-at-point-no-context'.
|
||
(let ((org-element-org-data-parser--recurse t))
|
||
(while (re-search-backward "^[ \t]*#\\+CATEGORY:" (point-min) t)
|
||
(org-element-with-disabled-cache
|
||
(let ((element (org-element-at-point-no-context)))
|
||
(when (eq (org-element-type element) 'keyword)
|
||
(throw 'buffer-category
|
||
(org-element-property :value element)))))))))
|
||
category))
|
||
(properties (org-element--get-global-node-properties)))
|
||
(unless (plist-get properties :CATEGORY)
|
||
(setq properties (plist-put properties :CATEGORY category)))
|
||
(list 'org-data
|
||
(nconc
|
||
(list :begin begin
|
||
:contents-begin contents-begin
|
||
:contents-end pos-before-blank
|
||
:end end
|
||
:robust-begin robust-begin
|
||
:robust-end robust-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated begin
|
||
:path (buffer-file-name)
|
||
:mode 'org-data)
|
||
properties)))))
|
||
|
||
(defun org-element-org-data-interpreter (_ contents)
|
||
"Interpret ORG-DATA element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
contents)
|
||
|
||
;;;; Inlinetask
|
||
|
||
(defun org-element-inlinetask-parser (limit &optional raw-secondary-p)
|
||
"Parse an inline task.
|
||
|
||
Return a list whose CAR is `inlinetask' and CDR is a plist
|
||
containing `:title', `:begin', `:end', `:pre-blank',
|
||
`:contents-begin' and `:contents-end', `:level', `:priority',
|
||
`:raw-value', `:tags', `:todo-keyword', `:todo-type',
|
||
`:scheduled', `:deadline', `:closed', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
The plist also contains any property set in the property drawer,
|
||
with its name in upper cases and colons added at the
|
||
beginning (e.g., `:CUSTOM_ID').
|
||
|
||
When optional argument RAW-SECONDARY-P is non-nil, inline-task's
|
||
title will not be parsed as a secondary string, but as a plain
|
||
string instead.
|
||
|
||
Assume point is at beginning of the inline task."
|
||
(save-excursion
|
||
(let* ((begin (point))
|
||
(level (prog1 (org-reduced-level (skip-chars-forward "*"))
|
||
(skip-chars-forward " \t")))
|
||
(todo (and org-todo-regexp
|
||
(let (case-fold-search) (looking-at org-todo-regexp))
|
||
(progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")
|
||
(match-string 0))))
|
||
(todo-type (and todo
|
||
(if (member todo org-done-keywords) 'done 'todo)))
|
||
(priority (and (looking-at "\\[#.\\][ \t]*")
|
||
(progn (goto-char (match-end 0))
|
||
(aref (match-string 0) 2))))
|
||
(commentedp
|
||
(and (let ((case-fold-search nil))
|
||
(looking-at org-element-comment-string))
|
||
(goto-char (match-end 0))
|
||
(when (looking-at-p "\\(?:[ \t]\\|$\\)")
|
||
(point))))
|
||
(title-start (prog1 (point)
|
||
(unless (or todo priority commentedp)
|
||
;; Headline like "* :tag:"
|
||
(skip-chars-backward " \t"))))
|
||
(tags (when (re-search-forward
|
||
"[ \t]+\\(:[[:alnum:]_@#%:]+:\\)[ \t]*$"
|
||
(line-end-position)
|
||
'move)
|
||
(goto-char (match-beginning 0))
|
||
(org-split-string (match-string 1) ":")))
|
||
(title-end (point))
|
||
(raw-value (org-trim
|
||
(buffer-substring-no-properties title-start title-end)))
|
||
(archivedp (member org-element-archive-tag tags))
|
||
(task-end (save-excursion
|
||
(end-of-line)
|
||
(and (re-search-forward org-element-headline-re limit t)
|
||
(looking-at-p "[ \t]*END[ \t]*$")
|
||
(line-beginning-position))))
|
||
(standard-props (and task-end (org-element--get-node-properties)))
|
||
(time-props (and task-end (org-element--get-time-properties)))
|
||
(contents-begin (and task-end
|
||
(< (point) task-end)
|
||
(progn
|
||
(forward-line)
|
||
(skip-chars-forward " \t\n")
|
||
(line-beginning-position))))
|
||
(contents-end (and contents-begin task-end))
|
||
(end (progn (when task-end (goto-char task-end))
|
||
(forward-line)
|
||
(skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position))))
|
||
(inlinetask
|
||
(list 'inlinetask
|
||
(nconc
|
||
(list :raw-value raw-value
|
||
:begin begin
|
||
:end end
|
||
:pre-blank
|
||
(if (not contents-begin) 0
|
||
(1- (count-lines begin contents-begin)))
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:level level
|
||
:priority priority
|
||
:tags tags
|
||
:todo-keyword todo
|
||
:todo-type todo-type
|
||
:post-blank (1- (count-lines (or task-end begin) end))
|
||
:post-affiliated begin
|
||
:archivedp archivedp
|
||
:commentedp commentedp)
|
||
time-props
|
||
standard-props))))
|
||
(org-element-put-property
|
||
inlinetask :title
|
||
(if raw-secondary-p raw-value
|
||
(org-element--parse-objects
|
||
(progn (goto-char title-start)
|
||
(skip-chars-forward " \t")
|
||
(point))
|
||
(progn (goto-char title-end)
|
||
(skip-chars-backward " \t")
|
||
(point))
|
||
nil
|
||
(org-element-restriction 'inlinetask)
|
||
inlinetask))))))
|
||
|
||
(defun org-element-inlinetask-interpreter (inlinetask contents)
|
||
"Interpret INLINETASK element as Org syntax.
|
||
CONTENTS is the contents of inlinetask."
|
||
(let* ((level (org-element-property :level inlinetask))
|
||
(todo (org-element-property :todo-keyword inlinetask))
|
||
(priority (org-element-property :priority inlinetask))
|
||
(title (org-element-interpret-data
|
||
(org-element-property :title inlinetask)))
|
||
(tags (let ((tag-list (org-element-property :tags inlinetask)))
|
||
(and tag-list
|
||
(format ":%s:" (mapconcat 'identity tag-list ":")))))
|
||
(task (concat (make-string level ?*)
|
||
(and todo (concat " " todo))
|
||
(and priority (format " [#%c]" priority))
|
||
(and title (concat " " title)))))
|
||
(concat task
|
||
;; Align tags.
|
||
(when tags
|
||
(cond
|
||
((zerop org-tags-column) (format " %s" tags))
|
||
((< org-tags-column 0)
|
||
(concat
|
||
(make-string
|
||
(max (- (+ org-tags-column (length task) (length tags))) 1)
|
||
?\s)
|
||
tags))
|
||
(t
|
||
(concat
|
||
(make-string (max (- org-tags-column (length task)) 1) ?\s)
|
||
tags))))
|
||
;; Prefer degenerate inlinetasks when there are no
|
||
;; contents.
|
||
(when contents
|
||
(concat "\n"
|
||
contents
|
||
(make-string level ?*) " end")))))
|
||
|
||
|
||
;;;; Item
|
||
|
||
(defun org-element-item-parser (_ struct &optional raw-secondary-p)
|
||
"Parse an item.
|
||
|
||
STRUCT is the structure of the plain list.
|
||
|
||
Return a list whose CAR is `item' and CDR is a plist containing
|
||
`:bullet', `:begin', `:end', `:contents-begin', `:contents-end',
|
||
`:checkbox', `:counter', `:tag', `:structure', `:pre-blank',
|
||
`:post-blank' and `:post-affiliated' keywords.
|
||
|
||
When optional argument RAW-SECONDARY-P is non-nil, item's tag, if
|
||
any, will not be parsed as a secondary string, but as a plain
|
||
string instead.
|
||
|
||
Assume point is at the beginning of the item."
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(looking-at org-list-full-item-re)
|
||
(let* ((begin (point))
|
||
(bullet (match-string-no-properties 1))
|
||
(checkbox (let ((box (match-string 3)))
|
||
(cond ((equal "[ ]" box) 'off)
|
||
((equal "[X]" box) 'on)
|
||
((equal "[-]" box) 'trans))))
|
||
(counter (let ((c (match-string 2)))
|
||
(save-match-data
|
||
(cond
|
||
((not c) nil)
|
||
((string-match "[A-Za-z]" c)
|
||
(- (string-to-char (upcase (match-string 0 c)))
|
||
64))
|
||
((string-match "[0-9]+" c)
|
||
(string-to-number (match-string 0 c)))))))
|
||
(end (progn (goto-char (nth 6 (assq (point) struct)))
|
||
(if (bolp) (point) (line-beginning-position 2))))
|
||
(pre-blank 0)
|
||
(contents-begin
|
||
(progn
|
||
(goto-char
|
||
;; Ignore tags in un-ordered lists: they are just
|
||
;; a part of item's body.
|
||
(if (and (match-beginning 4)
|
||
(save-match-data (string-match "[.)]" bullet)))
|
||
(match-beginning 4)
|
||
(match-end 0)))
|
||
(skip-chars-forward " \r\t\n" end)
|
||
(cond ((= (point) end) nil)
|
||
;; If first line isn't empty, contents really
|
||
;; start at the text after item's meta-data.
|
||
((= (line-beginning-position) begin) (point))
|
||
(t
|
||
(setq pre-blank
|
||
(count-lines (line-beginning-position) begin))
|
||
(line-beginning-position)))))
|
||
(contents-end (and contents-begin
|
||
(progn (goto-char end)
|
||
(skip-chars-backward " \r\t\n")
|
||
(line-beginning-position 2))))
|
||
(item
|
||
(list 'item
|
||
(list :bullet bullet
|
||
:begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:checkbox checkbox
|
||
:counter counter
|
||
:structure struct
|
||
:pre-blank pre-blank
|
||
:post-blank (count-lines (or contents-end begin) end)
|
||
:post-affiliated begin))))
|
||
(org-element-put-property
|
||
item :tag
|
||
(let ((raw (org-list-get-tag begin struct)))
|
||
(when raw
|
||
(if raw-secondary-p raw
|
||
(org-element--parse-objects
|
||
(match-beginning 4) (match-end 4) nil
|
||
(org-element-restriction 'item)
|
||
item))))))))
|
||
|
||
(defun org-element-item-interpreter (item contents)
|
||
"Interpret ITEM element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(let ((tag (pcase (org-element-property :tag item)
|
||
(`nil nil)
|
||
(tag (format "%s :: " (org-element-interpret-data tag)))))
|
||
(bullet
|
||
(org-list-bullet-string
|
||
(cond
|
||
((not (string-match-p "[0-9a-zA-Z]"
|
||
(org-element-property :bullet item))) "- ")
|
||
((eq org-plain-list-ordered-item-terminator ?\)) "1)")
|
||
(t "1.")))))
|
||
(concat
|
||
bullet
|
||
(pcase (org-element-property :counter item)
|
||
(`nil nil)
|
||
(counter (format "[@%d] " counter)))
|
||
(pcase (org-element-property :checkbox item)
|
||
(`on "[X] ")
|
||
(`off "[ ] ")
|
||
(`trans "[-] ")
|
||
(_ nil))
|
||
tag
|
||
(when contents
|
||
(let* ((ind (make-string (if tag 5 (length bullet)) ?\s))
|
||
(pre-blank
|
||
(min (or (org-element-property :pre-blank item)
|
||
;; 0 is specific to paragraphs at the
|
||
;; beginning of the item, so we use 1 as
|
||
;; a fall-back value, which is more universal.
|
||
1)
|
||
;; Lists ends after more than two consecutive
|
||
;; empty lines: limit ourselves to 2 newline
|
||
;; characters.
|
||
2))
|
||
(contents (replace-regexp-in-string
|
||
"\\(^\\)[ \t]*\\S-" ind contents nil nil 1)))
|
||
(if (= pre-blank 0) (org-trim contents)
|
||
(concat (make-string pre-blank ?\n) contents)))))))
|
||
|
||
|
||
;;;; Plain List
|
||
|
||
(defun org-element--list-struct (limit)
|
||
;; Return structure of list at point. Internal function. See
|
||
;; `org-list-struct' for details.
|
||
(let ((case-fold-search t)
|
||
(top-ind limit)
|
||
(item-re (org-item-re))
|
||
(inlinetask-re (and (featurep 'org-inlinetask)
|
||
(boundp 'org-inlinetask-min-level)
|
||
(boundp 'org-inlinetask-max-level)
|
||
(format "^\\*\\{%d,%d\\}+ "
|
||
org-inlinetask-min-level
|
||
org-inlinetask-max-level)))
|
||
items struct)
|
||
(save-excursion
|
||
(catch :exit
|
||
(while t
|
||
(cond
|
||
;; At limit: end all items.
|
||
((>= (point) limit)
|
||
(let ((end (progn (skip-chars-backward " \r\t\n")
|
||
(line-beginning-position 2))))
|
||
(dolist (item items) (setcar (nthcdr 6 item) end)))
|
||
(throw :exit (sort (nconc items struct) #'car-less-than-car)))
|
||
;; At list end: end all items.
|
||
((looking-at org-list-end-re)
|
||
(dolist (item items) (setcar (nthcdr 6 item) (point)))
|
||
(throw :exit (sort (nconc items struct) #'car-less-than-car)))
|
||
;; At a new item: end previous sibling.
|
||
((looking-at item-re)
|
||
(let ((ind (save-excursion (skip-chars-forward " \t")
|
||
(org-current-text-column))))
|
||
(setq top-ind (min top-ind ind))
|
||
(while (and items (<= ind (nth 1 (car items))))
|
||
(let ((item (pop items)))
|
||
(setcar (nthcdr 6 item) (point))
|
||
(push item struct)))
|
||
(push (progn (looking-at org-list-full-item-re)
|
||
(let ((bullet (match-string-no-properties 1)))
|
||
(list (point)
|
||
ind
|
||
bullet
|
||
(match-string-no-properties 2) ; counter
|
||
(match-string-no-properties 3) ; checkbox
|
||
;; Description tag.
|
||
(and (save-match-data
|
||
(string-match "[-+*]" bullet))
|
||
(match-string-no-properties 4))
|
||
;; Ending position, unknown so far.
|
||
nil)))
|
||
items))
|
||
(forward-line))
|
||
;; Skip empty lines.
|
||
((looking-at "^[ \t]*$") (forward-line))
|
||
;; Skip inline tasks and blank lines along the way.
|
||
((and inlinetask-re (looking-at inlinetask-re))
|
||
(forward-line)
|
||
(let ((origin (point)))
|
||
(when (re-search-forward inlinetask-re limit t)
|
||
(if (looking-at-p "END[ \t]*$") (forward-line)
|
||
(goto-char origin)))))
|
||
;; At some text line. Check if it ends any previous item.
|
||
(t
|
||
(let ((ind (save-excursion
|
||
(skip-chars-forward " \t")
|
||
(org-current-text-column)))
|
||
(end (save-excursion
|
||
(skip-chars-backward " \r\t\n")
|
||
(line-beginning-position 2))))
|
||
(while (<= ind (nth 1 (car items)))
|
||
(let ((item (pop items)))
|
||
(setcar (nthcdr 6 item) end)
|
||
(push item struct)
|
||
(unless items
|
||
(throw :exit (sort struct #'car-less-than-car))))))
|
||
;; Skip blocks (any type) and drawers contents.
|
||
(cond
|
||
((and (looking-at "[ \t]*#\\+BEGIN\\(:\\|_\\S-+\\)")
|
||
(re-search-forward
|
||
(format "^[ \t]*#\\+END%s[ \t]*$" (match-string 1))
|
||
limit t)))
|
||
((and (looking-at org-element-drawer-re)
|
||
(re-search-forward "^[ \t]*:END:[ \t]*$" limit t))))
|
||
(forward-line))))))))
|
||
|
||
(defun org-element-plain-list-parser (limit affiliated structure)
|
||
"Parse a plain list.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value. STRUCTURE is the structure of the plain list being
|
||
parsed.
|
||
|
||
Return a list whose CAR is `plain-list' and CDR is a plist
|
||
containing `:type', `:begin', `:end', `:contents-begin' and
|
||
`:contents-end', `:structure', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the list."
|
||
(save-excursion
|
||
(let* ((struct (or structure (org-element--list-struct limit)))
|
||
(type (cond ((looking-at-p "[ \t]*[A-Za-z0-9]") 'ordered)
|
||
((nth 5 (assq (point) struct)) 'descriptive)
|
||
(t 'unordered)))
|
||
(contents-begin (point))
|
||
(begin (car affiliated))
|
||
(contents-end (let* ((item (assq contents-begin struct))
|
||
(ind (nth 1 item))
|
||
(pos (nth 6 item)))
|
||
(while (and (setq item (assq pos struct))
|
||
(= (nth 1 item) ind))
|
||
(setq pos (nth 6 item)))
|
||
pos))
|
||
(end (progn (goto-char contents-end)
|
||
(skip-chars-forward " \r\t\n" limit)
|
||
(if (= (point) limit) limit (line-beginning-position)))))
|
||
;; Return value.
|
||
(list 'plain-list
|
||
(nconc
|
||
(list :type type
|
||
:begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:structure struct
|
||
:post-blank (count-lines contents-end end)
|
||
:post-affiliated contents-begin)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-plain-list-interpreter (_ contents)
|
||
"Interpret plain-list element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(with-temp-buffer
|
||
(insert contents)
|
||
(goto-char (point-min))
|
||
(org-list-repair)
|
||
(buffer-string)))
|
||
|
||
|
||
;;;; Property Drawer
|
||
|
||
(defun org-element-property-drawer-parser (limit)
|
||
"Parse a property drawer.
|
||
|
||
LIMIT bounds the search.
|
||
|
||
Return a list whose car is `property-drawer' and cdr is a plist
|
||
containing `:begin', `:end', `:contents-begin', `:contents-end',
|
||
`:post-blank' and `:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the property drawer."
|
||
(save-excursion
|
||
(let ((case-fold-search t)
|
||
(begin (point))
|
||
(contents-begin (line-beginning-position 2)))
|
||
(re-search-forward "^[ \t]*:END:[ \t]*$" limit t)
|
||
(let ((contents-end (and (> (match-beginning 0) contents-begin)
|
||
(match-beginning 0)))
|
||
(before-blank (progn (forward-line) (point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'property-drawer
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin (and contents-end contents-begin)
|
||
:contents-end contents-end
|
||
:post-blank (count-lines before-blank end)
|
||
:post-affiliated begin))))))
|
||
|
||
(defun org-element-property-drawer-interpreter (_ contents)
|
||
"Interpret property-drawer element as Org syntax.
|
||
CONTENTS is the properties within the drawer."
|
||
(format ":PROPERTIES:\n%s:END:" contents))
|
||
|
||
|
||
;;;; Quote Block
|
||
|
||
(defun org-element-quote-block-parser (limit affiliated)
|
||
"Parse a quote block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `quote-block' and CDR is a plist
|
||
containing `:begin', `:end', `:contents-begin', `:contents-end',
|
||
`:post-blank' and `:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the block."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(re-search-forward "^[ \t]*#\\+END_QUOTE[ \t]*$" limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((block-end-line (match-beginning 0)))
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
;; Empty blocks have no contents.
|
||
(contents-begin (progn (forward-line)
|
||
(and (< (point) block-end-line)
|
||
(point))))
|
||
(contents-end (and contents-begin block-end-line))
|
||
(pos-before-blank (progn (goto-char block-end-line)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'quote-block
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated)))))))))
|
||
|
||
(defun org-element-quote-block-interpreter (_ contents)
|
||
"Interpret quote-block element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(format "#+begin_quote\n%s#+end_quote" contents))
|
||
|
||
|
||
;;;; Section
|
||
|
||
(defun org-element-section-parser (_)
|
||
"Parse a section.
|
||
|
||
Return a list whose CAR is `section' and CDR is a plist
|
||
containing `:begin', `:end', `:contents-begin', `contents-end',
|
||
`:post-blank' and `:post-affiliated' keywords."
|
||
(save-excursion
|
||
;; Beginning of section is the beginning of the first non-blank
|
||
;; line after previous headline.
|
||
(let* ((begin (point))
|
||
(end (progn (org-with-limited-levels (outline-next-heading))
|
||
(point)))
|
||
(pos-before-blank (progn (skip-chars-backward " \r\t\n")
|
||
(line-beginning-position 2)))
|
||
(robust-end (when (> (- pos-before-blank 2) begin)
|
||
(- pos-before-blank 2)))
|
||
(robust-begin (when robust-end begin))
|
||
)
|
||
(list 'section
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin begin
|
||
:contents-end pos-before-blank
|
||
:robust-begin robust-begin
|
||
:robust-end robust-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated begin)))))
|
||
|
||
(defun org-element-section-interpreter (_ contents)
|
||
"Interpret section element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
contents)
|
||
|
||
|
||
;;;; Special Block
|
||
|
||
(defun org-element-special-block-parser (limit affiliated)
|
||
"Parse a special block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `special-block' and CDR is a plist
|
||
containing `:type', `:parameters', `:begin', `:end',
|
||
`:contents-begin', `:contents-end', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the block."
|
||
(let* ((case-fold-search t)
|
||
(type (progn (looking-at "[ \t]*#\\+BEGIN_\\(\\S-+\\)[ \t]*\\(.*\\)[ \t]*$")
|
||
(match-string-no-properties 1)))
|
||
(parameters (match-string-no-properties 2)))
|
||
(if (not (save-excursion
|
||
(re-search-forward
|
||
(format "^[ \t]*#\\+END_%s[ \t]*$" (regexp-quote type))
|
||
limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((block-end-line (match-beginning 0)))
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
;; Empty blocks have no contents.
|
||
(contents-begin (progn (forward-line)
|
||
(and (< (point) block-end-line)
|
||
(point))))
|
||
(contents-end (and contents-begin block-end-line))
|
||
(pos-before-blank (progn (goto-char block-end-line)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'special-block
|
||
(nconc
|
||
(list :type type
|
||
:parameters (and (org-string-nw-p parameters)
|
||
(org-trim parameters))
|
||
:begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated)))))))))
|
||
|
||
(defun org-element-special-block-interpreter (special-block contents)
|
||
"Interpret SPECIAL-BLOCK element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
(let ((block-type (org-element-property :type special-block))
|
||
(parameters (org-element-property :parameters special-block)))
|
||
(format "#+begin_%s%s\n%s#+end_%s" block-type
|
||
(if parameters (concat " " parameters) "")
|
||
(or contents "") block-type)))
|
||
|
||
|
||
|
||
;;; Elements
|
||
;;
|
||
;; For each element, a parser and an interpreter are also defined.
|
||
;; Both follow the same naming convention used for greater elements.
|
||
;;
|
||
;; Also, as for greater elements, adding a new element type is done
|
||
;; through the following steps: implement a parser and an interpreter,
|
||
;; tweak `org-element--current-element' so that it recognizes the new
|
||
;; type and add that new type to `org-element-all-elements'.
|
||
|
||
|
||
;;;; Babel Call
|
||
|
||
(defun org-element-babel-call-parser (limit affiliated)
|
||
"Parse a babel call.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which car is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and cdr is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose car is `babel-call' and cdr is a plist
|
||
containing `:call', `:inside-header', `:arguments',
|
||
`:end-header', `:begin', `:end', `:value', `:post-blank' and
|
||
`:post-affiliated' as keywords."
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(before-blank (line-beginning-position 2))
|
||
(value (progn (search-forward ":" before-blank t)
|
||
(skip-chars-forward " \t")
|
||
(org-trim
|
||
(buffer-substring-no-properties
|
||
(point) (line-end-position)))))
|
||
(call
|
||
(or (org-string-nw-p
|
||
(buffer-substring-no-properties
|
||
(point) (progn (skip-chars-forward "^[]()" before-blank)
|
||
(point))))))
|
||
(inside-header (org-element--parse-paired-brackets ?\[))
|
||
(arguments (org-string-nw-p
|
||
(org-element--parse-paired-brackets ?\()))
|
||
(end-header
|
||
(org-string-nw-p
|
||
(org-trim
|
||
(buffer-substring-no-properties (point) (line-end-position)))))
|
||
(end (progn (forward-line)
|
||
(skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'babel-call
|
||
(nconc
|
||
(list :call call
|
||
:inside-header inside-header
|
||
:arguments arguments
|
||
:end-header end-header
|
||
:begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank (count-lines before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-babel-call-interpreter (babel-call _)
|
||
"Interpret BABEL-CALL element as Org syntax."
|
||
(concat "#+call: "
|
||
(org-element-property :call babel-call)
|
||
(let ((h (org-element-property :inside-header babel-call)))
|
||
(and h (format "[%s]" h)))
|
||
(concat "(" (org-element-property :arguments babel-call) ")")
|
||
(let ((h (org-element-property :end-header babel-call)))
|
||
(and h (concat " " h)))))
|
||
|
||
|
||
;;;; Clock
|
||
|
||
(defun org-element-clock-parser (limit)
|
||
"Parse a clock.
|
||
|
||
LIMIT bounds the search.
|
||
|
||
Return a list whose CAR is `clock' and CDR is a plist containing
|
||
`:status', `:value', `:time', `:begin', `:end', `:post-blank' and
|
||
`:post-affiliated' as keywords."
|
||
(save-excursion
|
||
(let* ((case-fold-search nil)
|
||
(begin (point))
|
||
(value (progn (search-forward "CLOCK:" (line-end-position) t)
|
||
(skip-chars-forward " \t")
|
||
(org-element-timestamp-parser)))
|
||
(duration (and (search-forward " => " (line-end-position) t)
|
||
(progn (skip-chars-forward " \t")
|
||
(looking-at "\\(\\S-+\\)[ \t]*$"))
|
||
(match-string-no-properties 1)))
|
||
(status (if duration 'closed 'running))
|
||
(post-blank (let ((before-blank (progn (forward-line) (point))))
|
||
(skip-chars-forward " \r\t\n" limit)
|
||
(skip-chars-backward " \t")
|
||
(unless (bolp) (end-of-line))
|
||
(count-lines before-blank (point))))
|
||
(end (point)))
|
||
(list 'clock
|
||
(list :status status
|
||
:value value
|
||
:duration duration
|
||
:begin begin
|
||
:end end
|
||
:post-blank post-blank
|
||
:post-affiliated begin)))))
|
||
|
||
(defun org-element-clock-interpreter (clock _)
|
||
"Interpret CLOCK element as Org syntax."
|
||
(concat "CLOCK: "
|
||
(org-element-timestamp-interpreter
|
||
(org-element-property :value clock) nil)
|
||
(let ((duration (org-element-property :duration clock)))
|
||
(and duration
|
||
(concat " => "
|
||
(apply 'format
|
||
"%2s:%02s"
|
||
(org-split-string duration ":")))))))
|
||
|
||
|
||
;;;; Comment
|
||
|
||
(defun org-element-comment-parser (limit)
|
||
"Parse a comment.
|
||
|
||
LIMIT bounds the search.
|
||
|
||
Return a list whose CAR is `comment' and CDR is a plist
|
||
containing `:begin', `:end', `:value', `:post-blank',
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at comment beginning."
|
||
(save-excursion
|
||
(let* ((begin (point))
|
||
(value (prog2 (looking-at "[ \t]*# ?")
|
||
(buffer-substring-no-properties
|
||
(match-end 0) (line-end-position))
|
||
(forward-line)))
|
||
(com-end
|
||
;; Get comments ending.
|
||
(progn
|
||
(while (and (< (point) limit) (looking-at "[ \t]*#\\( \\|$\\)"))
|
||
;; Accumulate lines without leading hash and first
|
||
;; whitespace.
|
||
(setq value
|
||
(concat value
|
||
"\n"
|
||
(buffer-substring-no-properties
|
||
(match-end 0) (line-end-position))))
|
||
(forward-line))
|
||
(point)))
|
||
(end (progn (goto-char com-end)
|
||
(skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'comment
|
||
(list :begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank (count-lines com-end end)
|
||
:post-affiliated begin)))))
|
||
|
||
(defun org-element-comment-interpreter (comment _)
|
||
"Interpret COMMENT element as Org syntax.
|
||
CONTENTS is nil."
|
||
(replace-regexp-in-string "^" "# " (org-element-property :value comment)))
|
||
|
||
|
||
;;;; Comment Block
|
||
|
||
(defun org-element-comment-block-parser (limit affiliated)
|
||
"Parse an export block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `comment-block' and CDR is a plist
|
||
containing `:begin', `:end', `:value', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at comment block beginning."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(re-search-forward "^[ \t]*#\\+END_COMMENT[ \t]*$" limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((contents-end (match-beginning 0)))
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(contents-begin (progn (forward-line) (point)))
|
||
(pos-before-blank (progn (goto-char contents-end)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position))))
|
||
(value (buffer-substring-no-properties
|
||
contents-begin contents-end)))
|
||
(list 'comment-block
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated)))))))))
|
||
|
||
(defun org-element-comment-block-interpreter (comment-block _)
|
||
"Interpret COMMENT-BLOCK element as Org syntax."
|
||
(format "#+begin_comment\n%s#+end_comment"
|
||
(org-element-normalize-string
|
||
(org-remove-indentation
|
||
(org-element-property :value comment-block)))))
|
||
|
||
|
||
;;;; Diary Sexp
|
||
|
||
(defun org-element-diary-sexp-parser (limit affiliated)
|
||
"Parse a diary sexp.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `diary-sexp' and CDR is a plist
|
||
containing `:begin', `:end', `:value', `:post-blank' and
|
||
`:post-affiliated' keywords."
|
||
(save-excursion
|
||
(let ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(value (progn (looking-at "\\(%%(.*\\)[ \t]*$")
|
||
(match-string-no-properties 1)))
|
||
(pos-before-blank (progn (forward-line) (point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'diary-sexp
|
||
(nconc
|
||
(list :value value
|
||
:begin begin
|
||
:end end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-diary-sexp-interpreter (diary-sexp _)
|
||
"Interpret DIARY-SEXP as Org syntax."
|
||
(org-element-property :value diary-sexp))
|
||
|
||
|
||
;;;; Example Block
|
||
|
||
(defun org-element-example-block-parser (limit affiliated)
|
||
"Parse an example block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `example-block' and CDR is a plist
|
||
containing `:begin', `:end', `:number-lines', `:preserve-indent',
|
||
`:retain-labels', `:use-labels', `:label-fmt', `:switches',
|
||
`:value', `:post-blank' and `:post-affiliated' keywords."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(re-search-forward "^[ \t]*#\\+END_EXAMPLE[ \t]*$" limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((contents-end (match-beginning 0)))
|
||
(save-excursion
|
||
(let* ((switches
|
||
(progn
|
||
(looking-at "^[ \t]*#\\+BEGIN_EXAMPLE\\(?: +\\(.*\\)\\)?")
|
||
(match-string-no-properties 1)))
|
||
;; Switches analysis.
|
||
(number-lines
|
||
(and switches
|
||
(string-match "\\([-+]\\)n\\(?: *\\([0-9]+\\)\\)?\\>"
|
||
switches)
|
||
(cons
|
||
(if (equal (match-string 1 switches) "-")
|
||
'new
|
||
'continued)
|
||
(if (not (match-end 2)) 0
|
||
;; Subtract 1 to give number of lines before
|
||
;; first line.
|
||
(1- (string-to-number (match-string 2 switches)))))))
|
||
(preserve-indent
|
||
(and switches (string-match "-i\\>" switches)))
|
||
;; Should labels be retained in (or stripped from) example
|
||
;; blocks?
|
||
(retain-labels
|
||
(or (not switches)
|
||
(not (string-match "-r\\>" switches))
|
||
(and number-lines (string-match "-k\\>" switches))))
|
||
;; What should code-references use - labels or
|
||
;; line-numbers?
|
||
(use-labels
|
||
(or (not switches)
|
||
(and retain-labels
|
||
(not (string-match "-k\\>" switches)))))
|
||
(label-fmt
|
||
(and switches
|
||
(string-match "-l +\"\\([^\"\n]+\\)\"" switches)
|
||
(match-string 1 switches)))
|
||
;; Standard block parsing.
|
||
(begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(contents-begin (line-beginning-position 2))
|
||
(value (org-unescape-code-in-string
|
||
(buffer-substring-no-properties
|
||
contents-begin contents-end)))
|
||
(pos-before-blank (progn (goto-char contents-end)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'example-block
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:value value
|
||
:switches switches
|
||
:number-lines number-lines
|
||
:preserve-indent preserve-indent
|
||
:retain-labels retain-labels
|
||
:use-labels use-labels
|
||
:label-fmt label-fmt
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated)))))))))
|
||
|
||
(defun org-element-example-block-interpreter (example-block _)
|
||
"Interpret EXAMPLE-BLOCK element as Org syntax."
|
||
(let ((switches (org-element-property :switches example-block))
|
||
(value
|
||
(let ((val (org-element-property :value example-block)))
|
||
(cond
|
||
((or org-src-preserve-indentation
|
||
(org-element-property :preserve-indent example-block))
|
||
val)
|
||
((= 0 org-edit-src-content-indentation)
|
||
(org-remove-indentation val))
|
||
(t
|
||
(let ((ind (make-string org-edit-src-content-indentation ?\s)))
|
||
(replace-regexp-in-string "^[ \t]*\\S-"
|
||
(concat ind "\\&")
|
||
(org-remove-indentation val))))))))
|
||
(concat "#+begin_example" (and switches (concat " " switches)) "\n"
|
||
(org-element-normalize-string (org-escape-code-in-string value))
|
||
"#+end_example")))
|
||
|
||
|
||
;;;; Export Block
|
||
|
||
(defun org-element-export-block-parser (limit affiliated)
|
||
"Parse an export block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `export-block' and CDR is a plist
|
||
containing `:begin', `:end', `:type', `:value', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at export-block beginning."
|
||
(let* ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(re-search-forward "^[ \t]*#\\+END_EXPORT[ \t]*$" limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(save-excursion
|
||
(let* ((contents-end (match-beginning 0))
|
||
(backend
|
||
(progn
|
||
(looking-at
|
||
"[ \t]*#\\+BEGIN_EXPORT\\(?:[ \t]+\\(\\S-+\\)\\)?[ \t]*$")
|
||
(match-string-no-properties 1)))
|
||
(begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(contents-begin (progn (forward-line) (point)))
|
||
(pos-before-blank (progn (goto-char contents-end)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position))))
|
||
(value (org-unescape-code-in-string
|
||
(buffer-substring-no-properties contents-begin
|
||
contents-end))))
|
||
(list 'export-block
|
||
(nconc
|
||
(list :type (and backend (upcase backend))
|
||
:begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))))
|
||
|
||
(defun org-element-export-block-interpreter (export-block _)
|
||
"Interpret EXPORT-BLOCK element as Org syntax."
|
||
(format "#+begin_export %s\n%s#+end_export"
|
||
(org-element-property :type export-block)
|
||
(org-element-property :value export-block)))
|
||
|
||
|
||
;;;; Fixed-width
|
||
|
||
(defun org-element-fixed-width-parser (limit affiliated)
|
||
"Parse a fixed-width section.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `fixed-width' and CDR is a plist
|
||
containing `:begin', `:end', `:value', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the fixed-width area."
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(end-area
|
||
(progn
|
||
(while (and (< (point) limit)
|
||
(looking-at "[ \t]*:\\( \\|$\\)"))
|
||
(forward-line))
|
||
(if (bolp) (line-end-position 0) (point))))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'fixed-width
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:value (replace-regexp-in-string
|
||
"^[ \t]*: ?" ""
|
||
(buffer-substring-no-properties post-affiliated
|
||
end-area))
|
||
:post-blank (count-lines end-area end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-fixed-width-interpreter (fixed-width _)
|
||
"Interpret FIXED-WIDTH element as Org syntax."
|
||
(let ((value (org-element-property :value fixed-width)))
|
||
(and value
|
||
(if (string-empty-p value) ":\n"
|
||
(replace-regexp-in-string "^" ": " value)))))
|
||
|
||
|
||
;;;; Horizontal Rule
|
||
|
||
(defun org-element-horizontal-rule-parser (limit affiliated)
|
||
"Parse an horizontal rule.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `horizontal-rule' and CDR is a plist
|
||
containing `:begin', `:end', `:post-blank' and `:post-affiliated'
|
||
keywords."
|
||
(save-excursion
|
||
(let ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(post-hr (progn (forward-line) (point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'horizontal-rule
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:post-blank (count-lines post-hr end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-horizontal-rule-interpreter (&rest _)
|
||
"Interpret HORIZONTAL-RULE element as Org syntax."
|
||
"-----")
|
||
|
||
|
||
;;;; Keyword
|
||
|
||
(defun org-element-keyword-parser (limit affiliated)
|
||
"Parse a keyword at point.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is a normalized `keyword' (uppercase) and
|
||
CDR is a plist containing `:key', `:value', `:begin', `:end',
|
||
`:post-blank' and `:post-affiliated' keywords."
|
||
(save-excursion
|
||
;; An orphaned affiliated keyword is considered as a regular
|
||
;; keyword. In this case AFFILIATED is nil, so we take care of
|
||
;; this corner case.
|
||
(let ((begin (or (car affiliated) (point)))
|
||
(post-affiliated (point))
|
||
(key (progn (looking-at "[ \t]*#\\+\\(\\S-*\\):")
|
||
(upcase (match-string-no-properties 1))))
|
||
(value (org-trim (buffer-substring-no-properties
|
||
(match-end 0) (line-end-position))))
|
||
(pos-before-blank (progn (forward-line) (point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'keyword
|
||
(nconc
|
||
(list :key key
|
||
:value value
|
||
:begin begin
|
||
:end end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-keyword-interpreter (keyword _)
|
||
"Interpret KEYWORD element as Org syntax."
|
||
(format "#+%s: %s"
|
||
(downcase (org-element-property :key keyword))
|
||
(org-element-property :value keyword)))
|
||
|
||
|
||
;;;; LaTeX Environment
|
||
|
||
(defconst org-element--latex-begin-environment
|
||
"^[ \t]*\\\\begin{\\([A-Za-z0-9*]+\\)}"
|
||
"Regexp matching the beginning of a LaTeX environment.
|
||
The environment is captured by the first group.
|
||
|
||
See also `org-element--latex-end-environment'.")
|
||
|
||
(defconst org-element--latex-end-environment
|
||
"\\\\end{%s}[ \t]*$"
|
||
"Format string matching the ending of a LaTeX environment.
|
||
See also `org-element--latex-begin-environment'.")
|
||
|
||
(defun org-element-latex-environment-parser (limit affiliated)
|
||
"Parse a LaTeX environment.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `latex-environment' and CDR is a plist
|
||
containing `:begin', `:end', `:value', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the latex environment."
|
||
(save-excursion
|
||
(let ((case-fold-search t)
|
||
(code-begin (point)))
|
||
(looking-at org-element--latex-begin-environment)
|
||
(if (not (re-search-forward (format org-element--latex-end-environment
|
||
(regexp-quote (match-string 1)))
|
||
limit t))
|
||
;; Incomplete latex environment: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let* ((code-end (progn (forward-line) (point)))
|
||
(begin (car affiliated))
|
||
(value (buffer-substring-no-properties code-begin code-end))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'latex-environment
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank (count-lines code-end end)
|
||
:post-affiliated code-begin)
|
||
(cdr affiliated))))))))
|
||
|
||
(defun org-element-latex-environment-interpreter (latex-environment _)
|
||
"Interpret LATEX-ENVIRONMENT element as Org syntax."
|
||
(org-element-property :value latex-environment))
|
||
|
||
|
||
;;;; Node Property
|
||
|
||
(defun org-element-node-property-parser (limit)
|
||
"Parse a node-property at point.
|
||
|
||
LIMIT bounds the search.
|
||
|
||
Return a list whose CAR is `node-property' and CDR is a plist
|
||
containing `:key', `:value', `:begin', `:end', `:post-blank' and
|
||
`:post-affiliated' keywords."
|
||
(looking-at org-property-re)
|
||
(let ((case-fold-search t)
|
||
(begin (point))
|
||
(key (match-string-no-properties 2))
|
||
(value (match-string-no-properties 3))
|
||
(end (save-excursion
|
||
(end-of-line)
|
||
(if (re-search-forward org-property-re limit t)
|
||
(line-beginning-position)
|
||
limit))))
|
||
(list 'node-property
|
||
(list :key key
|
||
:value value
|
||
:begin begin
|
||
:end end
|
||
:post-blank 0
|
||
:post-affiliated begin))))
|
||
|
||
(defun org-element-node-property-interpreter (node-property _)
|
||
"Interpret NODE-PROPERTY element as Org syntax."
|
||
(format org-property-format
|
||
(format ":%s:" (org-element-property :key node-property))
|
||
(or (org-element-property :value node-property) "")))
|
||
|
||
|
||
;;;; Paragraph
|
||
|
||
(defun org-element-paragraph-parser (limit affiliated)
|
||
"Parse a paragraph.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `paragraph' and CDR is a plist
|
||
containing `:begin', `:end', `:contents-begin' and
|
||
`:contents-end', `:post-blank' and `:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the paragraph."
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(contents-begin (point))
|
||
(before-blank
|
||
(let ((case-fold-search t))
|
||
(end-of-line)
|
||
;; A matching `org-element-paragraph-separate' is not
|
||
;; necessarily the end of the paragraph. In particular,
|
||
;; drawers, blocks or LaTeX environments opening lines
|
||
;; must be closed. Moreover keywords with a secondary
|
||
;; value must belong to "dual keywords".
|
||
(while (not
|
||
(cond
|
||
((not (and (re-search-forward
|
||
org-element-paragraph-separate limit 'move)
|
||
(progn (beginning-of-line) t))))
|
||
((looking-at org-element-drawer-re)
|
||
(save-excursion
|
||
(re-search-forward "^[ \t]*:END:[ \t]*$" limit t)))
|
||
((looking-at "[ \t]*#\\+BEGIN_\\(\\S-+\\)")
|
||
(save-excursion
|
||
(re-search-forward
|
||
(format "^[ \t]*#\\+END_%s[ \t]*$"
|
||
(regexp-quote (match-string 1)))
|
||
limit t)))
|
||
((looking-at org-element--latex-begin-environment)
|
||
(save-excursion
|
||
(re-search-forward
|
||
(format org-element--latex-end-environment
|
||
(regexp-quote (match-string 1)))
|
||
limit t)))
|
||
((looking-at "[ \t]*#\\+\\(\\S-+\\)\\[.*\\]:")
|
||
(member-ignore-case (match-string 1)
|
||
org-element-dual-keywords))
|
||
;; Everything else is unambiguous.
|
||
(t)))
|
||
(end-of-line))
|
||
(if (= (point) limit) limit
|
||
(goto-char (line-beginning-position)))))
|
||
(contents-end (save-excursion
|
||
(skip-chars-backward " \r\t\n" contents-begin)
|
||
(line-beginning-position 2)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'paragraph
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank (count-lines before-blank end)
|
||
:post-affiliated contents-begin)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-paragraph-interpreter (_ contents)
|
||
"Interpret paragraph element as Org syntax.
|
||
CONTENTS is the contents of the element."
|
||
contents)
|
||
|
||
|
||
;;;; Planning
|
||
|
||
(defun org-element-planning-parser (limit)
|
||
"Parse a planning.
|
||
|
||
LIMIT bounds the search.
|
||
|
||
Return a list whose CAR is `planning' and CDR is a plist
|
||
containing `:closed', `:deadline', `:scheduled', `:begin',
|
||
`:end', `:post-blank' and `:post-affiliated' keywords."
|
||
(save-excursion
|
||
(let* ((case-fold-search nil)
|
||
(begin (point))
|
||
(post-blank (let ((before-blank (progn (forward-line) (point))))
|
||
(skip-chars-forward " \r\t\n" limit)
|
||
(skip-chars-backward " \t")
|
||
(unless (bolp) (end-of-line))
|
||
(count-lines before-blank (point))))
|
||
(end (point))
|
||
closed deadline scheduled)
|
||
(goto-char begin)
|
||
(while (re-search-forward org-element-planning-keywords-re end t)
|
||
(skip-chars-forward " \t" end)
|
||
(let ((keyword (match-string 0))
|
||
(time (org-element-timestamp-parser)))
|
||
(cond
|
||
((equal keyword org-element-closed-keyword) (setq closed time))
|
||
((equal keyword org-element-deadline-keyword) (setq deadline time))
|
||
(t (setq scheduled time)))))
|
||
(list 'planning
|
||
(list :closed closed
|
||
:deadline deadline
|
||
:scheduled scheduled
|
||
:begin begin
|
||
:end end
|
||
:post-blank post-blank
|
||
:post-affiliated begin)))))
|
||
|
||
(defun org-element-planning-interpreter (planning _)
|
||
"Interpret PLANNING element as Org syntax."
|
||
(mapconcat
|
||
#'identity
|
||
(delq nil
|
||
(list (let ((deadline (org-element-property :deadline planning)))
|
||
(when deadline
|
||
(concat org-element-deadline-keyword " "
|
||
(org-element-timestamp-interpreter deadline nil))))
|
||
(let ((scheduled (org-element-property :scheduled planning)))
|
||
(when scheduled
|
||
(concat org-element-scheduled-keyword " "
|
||
(org-element-timestamp-interpreter scheduled nil))))
|
||
(let ((closed (org-element-property :closed planning)))
|
||
(when closed
|
||
(concat org-element-closed-keyword " "
|
||
(org-element-timestamp-interpreter closed nil))))))
|
||
" "))
|
||
|
||
|
||
;;;; Src Block
|
||
|
||
(defun org-element-src-block-parser (limit affiliated)
|
||
"Parse a source block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `src-block' and CDR is a plist
|
||
containing `:language', `:switches', `:parameters', `:begin',
|
||
`:end', `:number-lines', `:retain-labels', `:use-labels',
|
||
`:label-fmt', `:preserve-indent', `:value', `:post-blank' and
|
||
`:post-affiliated' keywords.
|
||
|
||
Assume point is at the beginning of the block."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion (re-search-forward "^[ \t]*#\\+END_SRC[ \t]*$"
|
||
limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((contents-end (match-beginning 0)))
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
;; Get language as a string.
|
||
(language
|
||
(progn
|
||
(looking-at
|
||
"^[ \t]*#\\+BEGIN_SRC\
|
||
\\(?: +\\(\\S-+\\)\\)?\
|
||
\\(\\(?: +\\(?:-\\(?:l \".+\"\\|[ikr]\\)\\|[-+]n\\(?: *[0-9]+\\)?\\)\\)+\\)?\
|
||
\\(.*\\)[ \t]*$")
|
||
(match-string-no-properties 1)))
|
||
;; Get switches.
|
||
(switches (match-string-no-properties 2))
|
||
;; Get parameters.
|
||
(parameters (match-string-no-properties 3))
|
||
;; Switches analysis.
|
||
(number-lines
|
||
(and switches
|
||
(string-match "\\([-+]\\)n\\(?: *\\([0-9]+\\)\\)?\\>"
|
||
switches)
|
||
(cons
|
||
(if (equal (match-string 1 switches) "-")
|
||
'new
|
||
'continued)
|
||
(if (not (match-end 2)) 0
|
||
;; Subtract 1 to give number of lines before
|
||
;; first line.
|
||
(1- (string-to-number (match-string 2 switches)))))))
|
||
(preserve-indent (and switches
|
||
(string-match "-i\\>" switches)))
|
||
(label-fmt
|
||
(and switches
|
||
(string-match "-l +\"\\([^\"\n]+\\)\"" switches)
|
||
(match-string 1 switches)))
|
||
;; Should labels be retained in (or stripped from)
|
||
;; source blocks?
|
||
(retain-labels
|
||
(or (not switches)
|
||
(not (string-match "-r\\>" switches))
|
||
(and number-lines (string-match "-k\\>" switches))))
|
||
;; What should code-references use - labels or
|
||
;; line-numbers?
|
||
(use-labels
|
||
(or (not switches)
|
||
(and retain-labels
|
||
(not (string-match "-k\\>" switches)))))
|
||
;; Retrieve code.
|
||
(value (org-unescape-code-in-string
|
||
(buffer-substring-no-properties
|
||
(line-beginning-position 2) contents-end)))
|
||
(pos-before-blank (progn (goto-char contents-end)
|
||
(forward-line)
|
||
(point)))
|
||
;; Get position after ending blank lines.
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'src-block
|
||
(nconc
|
||
(list :language language
|
||
:switches (and (org-string-nw-p switches)
|
||
(org-trim switches))
|
||
:parameters (and (org-string-nw-p parameters)
|
||
(org-trim parameters))
|
||
:begin begin
|
||
:end end
|
||
:number-lines number-lines
|
||
:preserve-indent preserve-indent
|
||
:retain-labels retain-labels
|
||
:use-labels use-labels
|
||
:label-fmt label-fmt
|
||
:value value
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated)))))))))
|
||
|
||
(defun org-element-src-block-interpreter (src-block _)
|
||
"Interpret SRC-BLOCK element as Org syntax."
|
||
(let ((lang (org-element-property :language src-block))
|
||
(switches (org-element-property :switches src-block))
|
||
(params (org-element-property :parameters src-block))
|
||
(value
|
||
(let ((val (org-element-property :value src-block)))
|
||
(cond
|
||
((or org-src-preserve-indentation
|
||
(org-element-property :preserve-indent src-block))
|
||
val)
|
||
((zerop org-edit-src-content-indentation)
|
||
(org-remove-indentation val))
|
||
(t
|
||
(let ((ind (make-string org-edit-src-content-indentation ?\s)))
|
||
(replace-regexp-in-string "^[ \t]*\\S-"
|
||
(concat ind "\\&")
|
||
(org-remove-indentation val))))))))
|
||
(format "#+begin_src%s\n%s#+end_src"
|
||
(concat (and lang (concat " " lang))
|
||
(and switches (concat " " switches))
|
||
(and params (concat " " params)))
|
||
(org-element-normalize-string (org-escape-code-in-string value)))))
|
||
|
||
|
||
;;;; Table
|
||
|
||
(defun org-element-table-parser (limit affiliated)
|
||
"Parse a table at point.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `table' and CDR is a plist containing
|
||
`:begin', `:end', `:tblfm', `:type', `:contents-begin',
|
||
`:contents-end', `:value', `:post-blank' and `:post-affiliated'
|
||
keywords.
|
||
|
||
Assume point is at the beginning of the table."
|
||
(save-excursion
|
||
(let* ((case-fold-search t)
|
||
(table-begin (point))
|
||
(type (if (looking-at "[ \t]*|") 'org 'table.el))
|
||
(end-re (format "^[ \t]*\\($\\|[^| \t%s]\\)"
|
||
(if (eq type 'org) "" "+")))
|
||
(begin (car affiliated))
|
||
(table-end
|
||
(if (re-search-forward end-re limit 'move)
|
||
(goto-char (match-beginning 0))
|
||
(point)))
|
||
(tblfm (let (acc)
|
||
(while (looking-at "[ \t]*#\\+TBLFM: +\\(.*\\)[ \t]*$")
|
||
(push (match-string-no-properties 1) acc)
|
||
(forward-line))
|
||
acc))
|
||
(pos-before-blank (point))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'table
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:type type
|
||
:tblfm tblfm
|
||
;; Only `org' tables have contents. `table.el' tables
|
||
;; use a `:value' property to store raw table as
|
||
;; a string.
|
||
:contents-begin (and (eq type 'org) table-begin)
|
||
:contents-end (and (eq type 'org) table-end)
|
||
:value (and (eq type 'table.el)
|
||
(buffer-substring-no-properties
|
||
table-begin table-end))
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated table-begin)
|
||
(cdr affiliated))))))
|
||
|
||
(defun org-element-table-interpreter (table contents)
|
||
"Interpret TABLE element as Org syntax.
|
||
CONTENTS is a string, if table's type is `org', or nil."
|
||
(if (eq (org-element-property :type table) 'table.el)
|
||
(org-remove-indentation (org-element-property :value table))
|
||
(concat (with-temp-buffer (insert contents)
|
||
(org-table-align)
|
||
(buffer-string))
|
||
(mapconcat (lambda (fm) (concat "#+TBLFM: " fm))
|
||
(reverse (org-element-property :tblfm table))
|
||
"\n"))))
|
||
|
||
|
||
;;;; Table Row
|
||
|
||
(defun org-element-table-row-parser (_)
|
||
"Parse table row at point.
|
||
|
||
Return a list whose CAR is `table-row' and CDR is a plist
|
||
containing `:begin', `:end', `:contents-begin', `:contents-end',
|
||
`:type', `:post-blank' and `:post-affiliated' keywords."
|
||
(save-excursion
|
||
(let* ((type (if (looking-at "^[ \t]*|-") 'rule 'standard))
|
||
(begin (point))
|
||
;; A table rule has no contents. In that case, ensure
|
||
;; CONTENTS-BEGIN matches CONTENTS-END.
|
||
(contents-begin (and (eq type 'standard) (search-forward "|")))
|
||
(contents-end (and (eq type 'standard)
|
||
(progn
|
||
(end-of-line)
|
||
(skip-chars-backward " \t")
|
||
(point))))
|
||
(end (line-beginning-position 2)))
|
||
(list 'table-row
|
||
(list :type type
|
||
:begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank 0
|
||
:post-affiliated begin)))))
|
||
|
||
(defun org-element-table-row-interpreter (table-row contents)
|
||
"Interpret TABLE-ROW element as Org syntax.
|
||
CONTENTS is the contents of the table row."
|
||
(if (eq (org-element-property :type table-row) 'rule) "|-"
|
||
(concat "|" contents)))
|
||
|
||
|
||
;;;; Verse Block
|
||
|
||
(defun org-element-verse-block-parser (limit affiliated)
|
||
"Parse a verse block.
|
||
|
||
LIMIT bounds the search. AFFILIATED is a list of which CAR is
|
||
the buffer position at the beginning of the first affiliated
|
||
keyword and CDR is a plist of affiliated keywords along with
|
||
their value.
|
||
|
||
Return a list whose CAR is `verse-block' and CDR is a plist
|
||
containing `:begin', `:end', `:contents-begin', `:contents-end',
|
||
`:post-blank' and `:post-affiliated' keywords.
|
||
|
||
Assume point is at beginning of the block."
|
||
(let ((case-fold-search t))
|
||
(if (not (save-excursion
|
||
(re-search-forward "^[ \t]*#\\+END_VERSE[ \t]*$" limit t)))
|
||
;; Incomplete block: parse it as a paragraph.
|
||
(org-element-paragraph-parser limit affiliated)
|
||
(let ((contents-end (match-beginning 0)))
|
||
(save-excursion
|
||
(let* ((begin (car affiliated))
|
||
(post-affiliated (point))
|
||
(contents-begin (progn (forward-line) (point)))
|
||
(pos-before-blank (progn (goto-char contents-end)
|
||
(forward-line)
|
||
(point)))
|
||
(end (progn (skip-chars-forward " \r\t\n" limit)
|
||
(if (eobp) (point) (line-beginning-position)))))
|
||
(list 'verse-block
|
||
(nconc
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank (count-lines pos-before-blank end)
|
||
:post-affiliated post-affiliated)
|
||
(cdr affiliated)))))))))
|
||
|
||
(defun org-element-verse-block-interpreter (_ contents)
|
||
"Interpret verse-block element as Org syntax.
|
||
CONTENTS is verse block contents."
|
||
(format "#+begin_verse\n%s#+end_verse" contents))
|
||
|
||
|
||
|
||
;;; Objects
|
||
;;
|
||
;; Unlike to elements, raw text can be found between objects. Hence,
|
||
;; `org-element--object-lex' is provided to find the next object in
|
||
;; buffer.
|
||
;;
|
||
;; Some object types (e.g., `italic') are recursive. Restrictions on
|
||
;; object types they can contain will be specified in
|
||
;; `org-element-object-restrictions'.
|
||
;;
|
||
;; Creating a new type of object requires to alter
|
||
;; `org-element--object-regexp' and `org-element--object-lex', add the
|
||
;; new type in `org-element-all-objects', and possibly add
|
||
;; restrictions in `org-element-object-restrictions'.
|
||
|
||
;;;; Bold
|
||
|
||
(defun org-element--parse-generic-emphasis (mark type)
|
||
"Parse emphasis object at point, if any.
|
||
|
||
MARK is the delimiter string used. TYPE is a symbol among
|
||
`bold', `code', `italic', `strike-through', `underline', and
|
||
`verbatim'.
|
||
|
||
Assume point is at first MARK."
|
||
(save-excursion
|
||
(let ((origin (point)))
|
||
(unless (bolp) (forward-char -1))
|
||
(let ((opening-re
|
||
(rx-to-string
|
||
`(seq (or line-start (any space ?- ?\( ?' ?\" ?\{))
|
||
,mark
|
||
(not space)))))
|
||
(when (looking-at opening-re)
|
||
(goto-char (1+ origin))
|
||
(let ((closing-re
|
||
(rx-to-string
|
||
`(seq
|
||
(not space)
|
||
(group ,mark)
|
||
(or (any space ?- ?. ?, ?\; ?: ?! ?? ?' ?\" ?\) ?\} ?\\ ?\[)
|
||
line-end)))))
|
||
(when (re-search-forward closing-re nil t)
|
||
(let ((closing (match-end 1)))
|
||
(goto-char closing)
|
||
(let* ((post-blank (skip-chars-forward " \t"))
|
||
(contents-begin (1+ origin))
|
||
(contents-end (1- closing)))
|
||
(list type
|
||
(append
|
||
(list :begin origin
|
||
:end (point)
|
||
:post-blank post-blank)
|
||
(if (memq type '(code verbatim))
|
||
(list :value
|
||
(and (memq type '(code verbatim))
|
||
(buffer-substring
|
||
contents-begin contents-end)))
|
||
(list :contents-begin contents-begin
|
||
:contents-end contents-end)))))))))))))
|
||
|
||
(defun org-element-bold-parser ()
|
||
"Parse bold object at point, if any.
|
||
|
||
When at a bold object, return a list whose car is `bold' and cdr
|
||
is a plist with `:begin', `:end', `:contents-begin' and
|
||
`:contents-end' and `:post-blank' keywords. Otherwise, return
|
||
nil.
|
||
|
||
Assume point is at the first star marker."
|
||
(org-element--parse-generic-emphasis "*" 'bold))
|
||
|
||
(defun org-element-bold-interpreter (_ contents)
|
||
"Interpret bold object as Org syntax.
|
||
CONTENTS is the contents of the object."
|
||
(format "*%s*" contents))
|
||
|
||
|
||
;;;; Citation
|
||
|
||
(defun org-element-citation-parser ()
|
||
"Parse citation object at point, if any.
|
||
|
||
When at a citation object, return a list whose car is `citation'
|
||
and cdr is a plist with `:style', `:prefix', `:suffix', `:begin',
|
||
`:end', `:contents-begin', `:contents-end', and `:post-blank'
|
||
keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the citation."
|
||
(when (looking-at org-element-citation-prefix-re)
|
||
(let* ((begin (point))
|
||
(style (and (match-end 1)
|
||
(match-string-no-properties 1)))
|
||
;; Ignore blanks between cite type and prefix or key.
|
||
(start (match-end 0))
|
||
(closing (with-syntax-table org-element--pair-square-table
|
||
(ignore-errors (scan-lists begin 1 0)))))
|
||
(save-excursion
|
||
(when (and closing
|
||
(re-search-forward org-element-citation-key-re closing t))
|
||
;; Find prefix, if any.
|
||
(let ((first-key-end (match-end 0))
|
||
(types (org-element-restriction 'citation-reference))
|
||
(cite
|
||
(list 'citation
|
||
(list :style style
|
||
:begin begin
|
||
:post-blank (progn
|
||
(goto-char closing)
|
||
(skip-chars-forward " \t"))
|
||
:end (point)))))
|
||
;; `:contents-begin' depends on the presence of
|
||
;; a non-empty common prefix.
|
||
(goto-char first-key-end)
|
||
(if (not (search-backward ";" start t))
|
||
(org-element-put-property cite :contents-begin start)
|
||
(when (< start (point))
|
||
(org-element-put-property
|
||
cite :prefix
|
||
(org-element--parse-objects start (point) nil types cite)))
|
||
(forward-char)
|
||
(org-element-put-property cite :contents-begin (point)))
|
||
;; `:contents-end' depends on the presence of a non-empty
|
||
;; common suffix.
|
||
(goto-char (1- closing))
|
||
(skip-chars-backward " \r\t\n")
|
||
(let ((end (point)))
|
||
(if (or (not (search-backward ";" first-key-end t))
|
||
(re-search-forward org-element-citation-key-re end t))
|
||
(org-element-put-property cite :contents-end end)
|
||
(forward-char)
|
||
(when (< (point) end)
|
||
(org-element-put-property
|
||
cite :suffix
|
||
(org-element--parse-objects (point) end nil types cite)))
|
||
(org-element-put-property cite :contents-end (point))))
|
||
cite))))))
|
||
|
||
(defun org-element-citation-interpreter (citation contents)
|
||
"Interpret CITATION object as Org syntax.
|
||
CONTENTS is the contents of the object, as a string."
|
||
(let ((prefix (org-element-property :prefix citation))
|
||
(suffix (org-element-property :suffix citation))
|
||
(style (org-element-property :style citation)))
|
||
(concat "[cite"
|
||
(and style (concat "/" style))
|
||
":"
|
||
(and prefix (concat (org-element-interpret-data prefix) ";"))
|
||
(if suffix
|
||
(concat contents (org-element-interpret-data suffix))
|
||
;; Remove spurious semicolon.
|
||
(substring contents nil -1))
|
||
"]")))
|
||
|
||
|
||
;;;; Citation Reference
|
||
|
||
(defun org-element-citation-reference-parser ()
|
||
"Parse citation reference object at point, if any.
|
||
|
||
When at a reference, return a list whose car is
|
||
`citation-reference', and cdr is a plist with `:key',
|
||
`:prefix', `:suffix', `:begin', `:end', and `:post-blank' keywords.
|
||
|
||
Assume point is at the beginning of the reference."
|
||
(save-excursion
|
||
(let ((begin (point)))
|
||
(when (re-search-forward org-element-citation-key-re nil t)
|
||
(let* ((key (match-string-no-properties 1))
|
||
(key-start (match-beginning 0))
|
||
(key-end (match-end 0))
|
||
(separator (search-forward ";" nil t))
|
||
(end (or separator (point-max)))
|
||
(suffix-end (if separator (1- end) end))
|
||
(types (org-element-restriction 'citation-reference))
|
||
(reference
|
||
(list 'citation-reference
|
||
(list :key key
|
||
:begin begin
|
||
:end end
|
||
:post-blank 0))))
|
||
(when (< begin key-start)
|
||
(org-element-put-property
|
||
reference :prefix
|
||
(org-element--parse-objects begin key-start nil types reference)))
|
||
(when (< key-end suffix-end)
|
||
(org-element-put-property
|
||
reference :suffix
|
||
(org-element--parse-objects key-end suffix-end nil types reference)))
|
||
reference)))))
|
||
|
||
(defun org-element-citation-reference-interpreter (citation-reference _)
|
||
"Interpret CITATION-REFERENCE object as Org syntax."
|
||
(concat (org-element-interpret-data
|
||
(org-element-property :prefix citation-reference))
|
||
"@" (org-element-property :key citation-reference)
|
||
(org-element-interpret-data
|
||
(org-element-property :suffix citation-reference))
|
||
";"))
|
||
|
||
|
||
;;;; Code
|
||
|
||
(defun org-element-code-parser ()
|
||
"Parse code object at point, if any.
|
||
|
||
When at a code object, return a list whose car is `code' and cdr
|
||
is a plist with `:value', `:begin', `:end' and `:post-blank'
|
||
keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the first tilde marker."
|
||
(org-element--parse-generic-emphasis "~" 'code))
|
||
|
||
(defun org-element-code-interpreter (code _)
|
||
"Interpret CODE object as Org syntax."
|
||
(format "~%s~" (org-element-property :value code)))
|
||
|
||
|
||
;;;; Entity
|
||
|
||
(defun org-element-entity-parser ()
|
||
"Parse entity at point, if any.
|
||
|
||
When at an entity, return a list whose car is `entity' and cdr
|
||
a plist with `:begin', `:end', `:latex', `:latex-math-p',
|
||
`:html', `:latin1', `:utf-8', `:ascii', `:use-brackets-p' and
|
||
`:post-blank' as keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the entity."
|
||
(catch 'no-object
|
||
(when (looking-at "\\\\\\(?:\\(?1:_ +\\)\\|\\(?1:there4\\|sup[123]\\|frac[13][24]\\|[a-zA-Z]+\\)\\(?2:$\\|{}\\|[^[:alpha:]]\\)\\)")
|
||
(save-excursion
|
||
(let* ((value (or (org-entity-get (match-string 1))
|
||
(throw 'no-object nil)))
|
||
(begin (match-beginning 0))
|
||
(bracketsp (string= (match-string 2) "{}"))
|
||
(post-blank (progn (goto-char (match-end 1))
|
||
(when bracketsp (forward-char 2))
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'entity
|
||
(list :name (car value)
|
||
:latex (nth 1 value)
|
||
:latex-math-p (nth 2 value)
|
||
:html (nth 3 value)
|
||
:ascii (nth 4 value)
|
||
:latin1 (nth 5 value)
|
||
:utf-8 (nth 6 value)
|
||
:begin begin
|
||
:end end
|
||
:use-brackets-p bracketsp
|
||
:post-blank post-blank)))))))
|
||
|
||
(defun org-element-entity-interpreter (entity _)
|
||
"Interpret ENTITY object as Org syntax."
|
||
(concat "\\"
|
||
(org-element-property :name entity)
|
||
(when (org-element-property :use-brackets-p entity) "{}")))
|
||
|
||
|
||
;;;; Export Snippet
|
||
|
||
(defun org-element-export-snippet-parser ()
|
||
"Parse export snippet at point.
|
||
|
||
When at an export snippet, return a list whose car is
|
||
`export-snippet' and cdr a plist with `:begin', `:end',
|
||
`:back-end', `:value' and `:post-blank' as keywords. Otherwise,
|
||
return nil.
|
||
|
||
Assume point is at the beginning of the snippet."
|
||
(save-excursion
|
||
(let (contents-end)
|
||
(when (and (looking-at "@@\\([-A-Za-z0-9]+\\):")
|
||
(setq contents-end
|
||
(save-match-data (goto-char (match-end 0))
|
||
(when
|
||
(re-search-forward "@@" nil t)
|
||
(match-beginning 0)))))
|
||
(let* ((begin (match-beginning 0))
|
||
(back-end (match-string-no-properties 1))
|
||
(value (buffer-substring-no-properties
|
||
(match-end 0) contents-end))
|
||
(post-blank (skip-chars-forward " \t"))
|
||
(end (point)))
|
||
(list 'export-snippet
|
||
(list :back-end back-end
|
||
:value value
|
||
:begin begin
|
||
:end end
|
||
:post-blank post-blank)))))))
|
||
|
||
(defun org-element-export-snippet-interpreter (export-snippet _)
|
||
"Interpret EXPORT-SNIPPET object as Org syntax."
|
||
(format "@@%s:%s@@"
|
||
(org-element-property :back-end export-snippet)
|
||
(org-element-property :value export-snippet)))
|
||
|
||
|
||
;;;; Footnote Reference
|
||
|
||
(defun org-element-footnote-reference-parser ()
|
||
"Parse footnote reference at point, if any.
|
||
|
||
When at a footnote reference, return a list whose car is
|
||
`footnote-reference' and cdr a plist with `:label', `:type',
|
||
`:begin', `:end', `:contents-begin', `:contents-end' and
|
||
`:post-blank' as keywords. Otherwise, return nil."
|
||
(when (looking-at org-footnote-re)
|
||
(let ((closing (with-syntax-table org-element--pair-square-table
|
||
(ignore-errors (scan-lists (point) 1 0)))))
|
||
(when closing
|
||
(save-excursion
|
||
(let* ((begin (point))
|
||
(label (match-string-no-properties 1))
|
||
(inner-begin (match-end 0))
|
||
(inner-end (1- closing))
|
||
(type (if (match-end 2) 'inline 'standard))
|
||
(post-blank (progn (goto-char closing)
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'footnote-reference
|
||
(list :label label
|
||
:type type
|
||
:begin begin
|
||
:end end
|
||
:contents-begin (and (eq type 'inline) inner-begin)
|
||
:contents-end (and (eq type 'inline) inner-end)
|
||
:post-blank post-blank))))))))
|
||
|
||
(defun org-element-footnote-reference-interpreter (footnote-reference contents)
|
||
"Interpret FOOTNOTE-REFERENCE object as Org syntax.
|
||
CONTENTS is its definition, when inline, or nil."
|
||
(format "[fn:%s%s]"
|
||
(or (org-element-property :label footnote-reference) "")
|
||
(if contents (concat ":" contents) "")))
|
||
|
||
|
||
;;;; Inline Babel Call
|
||
|
||
(defun org-element-inline-babel-call-parser ()
|
||
"Parse inline babel call at point, if any.
|
||
|
||
When at an inline babel call, return a list whose car is
|
||
`inline-babel-call' and cdr a plist with `:call',
|
||
`:inside-header', `:arguments', `:end-header', `:begin', `:end',
|
||
`:value' and `:post-blank' as keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the babel call."
|
||
(save-excursion
|
||
(catch :no-object
|
||
(when (let ((case-fold-search nil))
|
||
(looking-at "\\<call_\\([^ \t\n[(]+\\)[([]"))
|
||
(goto-char (match-end 1))
|
||
(let* ((begin (match-beginning 0))
|
||
(call (match-string-no-properties 1))
|
||
(inside-header
|
||
(let ((p (org-element--parse-paired-brackets ?\[)))
|
||
(and (org-string-nw-p p)
|
||
(replace-regexp-in-string "\n[ \t]*" " " (org-trim p)))))
|
||
(arguments (org-string-nw-p
|
||
(or (org-element--parse-paired-brackets ?\()
|
||
;; Parenthesis are mandatory.
|
||
(throw :no-object nil))))
|
||
(end-header
|
||
(let ((p (org-element--parse-paired-brackets ?\[)))
|
||
(and (org-string-nw-p p)
|
||
(replace-regexp-in-string "\n[ \t]*" " " (org-trim p)))))
|
||
(value (buffer-substring-no-properties begin (point)))
|
||
(post-blank (skip-chars-forward " \t"))
|
||
(end (point)))
|
||
(list 'inline-babel-call
|
||
(list :call call
|
||
:inside-header inside-header
|
||
:arguments arguments
|
||
:end-header end-header
|
||
:begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank post-blank)))))))
|
||
|
||
(defun org-element-inline-babel-call-interpreter (inline-babel-call _)
|
||
"Interpret INLINE-BABEL-CALL object as Org syntax."
|
||
(concat "call_"
|
||
(org-element-property :call inline-babel-call)
|
||
(let ((h (org-element-property :inside-header inline-babel-call)))
|
||
(and h (format "[%s]" h)))
|
||
"(" (org-element-property :arguments inline-babel-call) ")"
|
||
(let ((h (org-element-property :end-header inline-babel-call)))
|
||
(and h (format "[%s]" h)))))
|
||
|
||
|
||
;;;; Inline Src Block
|
||
|
||
(defun org-element-inline-src-block-parser ()
|
||
"Parse inline source block at point, if any.
|
||
|
||
When at an inline source block, return a list whose car is
|
||
`inline-src-block' and cdr a plist with `:begin', `:end',
|
||
`:language', `:value', `:parameters' and `:post-blank' as
|
||
keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the inline source block."
|
||
(save-excursion
|
||
(catch :no-object
|
||
(when (let ((case-fold-search nil))
|
||
(looking-at "\\<src_\\([^ \t\n[{]+\\)[{[]"))
|
||
(goto-char (match-end 1))
|
||
(let ((begin (match-beginning 0))
|
||
(language (match-string-no-properties 1))
|
||
(parameters
|
||
(let ((p (org-element--parse-paired-brackets ?\[)))
|
||
(and (org-string-nw-p p)
|
||
(replace-regexp-in-string "\n[ \t]*" " " (org-trim p)))))
|
||
(value (or (org-element--parse-paired-brackets ?\{)
|
||
(throw :no-object nil)))
|
||
(post-blank (skip-chars-forward " \t")))
|
||
(list 'inline-src-block
|
||
(list :language language
|
||
:value value
|
||
:parameters parameters
|
||
:begin begin
|
||
:end (point)
|
||
:post-blank post-blank)))))))
|
||
|
||
(defun org-element-inline-src-block-interpreter (inline-src-block _)
|
||
"Interpret INLINE-SRC-BLOCK object as Org syntax."
|
||
(let ((language (org-element-property :language inline-src-block))
|
||
(arguments (org-element-property :parameters inline-src-block))
|
||
(body (org-element-property :value inline-src-block)))
|
||
(format "src_%s%s{%s}"
|
||
language
|
||
(if arguments (format "[%s]" arguments) "")
|
||
body)))
|
||
|
||
;;;; Italic
|
||
|
||
(defun org-element-italic-parser ()
|
||
"Parse italic object at point, if any.
|
||
|
||
When at an italic object, return a list whose car is `italic' and
|
||
cdr is a plist with `:begin', `:end', `:contents-begin' and
|
||
`:contents-end' and `:post-blank' keywords. Otherwise, return
|
||
nil.
|
||
|
||
Assume point is at the first slash marker."
|
||
(org-element--parse-generic-emphasis "/" 'italic))
|
||
|
||
(defun org-element-italic-interpreter (_ contents)
|
||
"Interpret italic object as Org syntax.
|
||
CONTENTS is the contents of the object."
|
||
(format "/%s/" contents))
|
||
|
||
|
||
;;;; LaTeX Fragment
|
||
|
||
(defun org-element-latex-fragment-parser ()
|
||
"Parse LaTeX fragment at point, if any.
|
||
|
||
When at a LaTeX fragment, return a list whose car is
|
||
`latex-fragment' and cdr a plist with `:value', `:begin', `:end',
|
||
and `:post-blank' as keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the LaTeX fragment."
|
||
(catch 'no-object
|
||
(save-excursion
|
||
(let* ((begin (point))
|
||
(after-fragment
|
||
(cond
|
||
((not (eq ?$ (char-after)))
|
||
(pcase (char-after (1+ (point)))
|
||
(?\( (search-forward "\\)" nil t))
|
||
(?\[ (search-forward "\\]" nil t))
|
||
(_
|
||
;; Macro.
|
||
(and (looking-at "\\\\[a-zA-Z]+\\*?\\(\\(\\[[^][\n{}]*\\]\\)\
|
||
\\|\\({[^{}\n]*}\\)\\)*")
|
||
(match-end 0)))))
|
||
((eq ?$ (char-after (1+ (point))))
|
||
(search-forward "$$" nil t 2))
|
||
(t
|
||
(and (not (eq ?$ (char-before)))
|
||
(not (memq (char-after (1+ (point)))
|
||
'(?\s ?\t ?\n ?, ?. ?\;)))
|
||
(search-forward "$" nil t 2)
|
||
(not (memq (char-before (match-beginning 0))
|
||
'(?\s ?\t ?\n ?, ?.)))
|
||
(looking-at-p
|
||
"\\(\\s.\\|\\s-\\|\\s(\\|\\s)\\|\\s\"\\|'\\|$\\)")
|
||
(point)))))
|
||
(post-blank
|
||
(if (not after-fragment) (throw 'no-object nil)
|
||
(goto-char after-fragment)
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'latex-fragment
|
||
(list :value (buffer-substring-no-properties begin after-fragment)
|
||
:begin begin
|
||
:end end
|
||
:post-blank post-blank))))))
|
||
|
||
(defun org-element-latex-fragment-interpreter (latex-fragment _)
|
||
"Interpret LATEX-FRAGMENT object as Org syntax."
|
||
(org-element-property :value latex-fragment))
|
||
|
||
;;;; Line Break
|
||
|
||
(defun org-element-line-break-parser ()
|
||
"Parse line break at point, if any.
|
||
|
||
When at a line break, return a list whose car is `line-break',
|
||
and cdr a plist with `:begin', `:end' and `:post-blank' keywords.
|
||
Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the line break."
|
||
(when (and (looking-at-p "\\\\\\\\[ \t]*$")
|
||
(not (eq (char-before) ?\\)))
|
||
(list 'line-break
|
||
(list :begin (point)
|
||
:end (line-beginning-position 2)
|
||
:post-blank 0))))
|
||
|
||
(defun org-element-line-break-interpreter (&rest _)
|
||
"Interpret LINE-BREAK object as Org syntax."
|
||
"\\\\\n")
|
||
|
||
|
||
;;;; Link
|
||
|
||
(defun org-element-link-parser ()
|
||
"Parse link at point, if any.
|
||
|
||
When at a link, return a list whose car is `link' and cdr a plist
|
||
with `:type', `:path', `:format', `:raw-link', `:application',
|
||
`:search-option', `:begin', `:end', `:contents-begin',
|
||
`:contents-end' and `:post-blank' as keywords. Otherwise, return
|
||
nil.
|
||
|
||
Assume point is at the beginning of the link."
|
||
(catch 'no-object
|
||
(let ((begin (point))
|
||
end contents-begin contents-end link-end post-blank path type format
|
||
raw-link search-option application)
|
||
(cond
|
||
;; Type 1: Text targeted from a radio target.
|
||
((and org-target-link-regexp
|
||
(save-excursion (or (bolp) (backward-char))
|
||
(looking-at org-target-link-regexp)))
|
||
(setq type "radio")
|
||
(setq format 'plain)
|
||
(setq link-end (match-end 1))
|
||
(setq path (match-string-no-properties 1))
|
||
(setq contents-begin (match-beginning 1))
|
||
(setq contents-end (match-end 1)))
|
||
;; Type 2: Standard link, i.e. [[https://orgmode.org][website]]
|
||
((looking-at org-link-bracket-re)
|
||
(setq format 'bracket)
|
||
(setq contents-begin (match-beginning 2))
|
||
(setq contents-end (match-end 2))
|
||
(setq link-end (match-end 0))
|
||
;; RAW-LINK is the original link. Decode any encoding.
|
||
;; Expand any abbreviation in it.
|
||
;;
|
||
;; Also treat any newline character and associated
|
||
;; indentation as a single space character. This is not
|
||
;; compatible with RFC 3986, which requires to ignore
|
||
;; them altogether. However, doing so would require
|
||
;; users to encode spaces on the fly when writing links
|
||
;; (e.g., insert [[shell:ls%20*.org]] instead of
|
||
;; [[shell:ls *.org]], which defeats Org's focus on
|
||
;; simplicity.
|
||
(setq raw-link (org-link-expand-abbrev
|
||
(org-link-unescape
|
||
(replace-regexp-in-string
|
||
"[ \t]*\n[ \t]*" " "
|
||
(match-string-no-properties 1)))))
|
||
;; Determine TYPE of link and set PATH accordingly. According
|
||
;; to RFC 3986, remove whitespaces from URI in external links.
|
||
;; In internal ones, treat indentation as a single space.
|
||
(cond
|
||
;; File type.
|
||
((or (file-name-absolute-p raw-link)
|
||
(string-match "\\`\\.\\.?/" raw-link))
|
||
(setq type "file")
|
||
(setq path raw-link))
|
||
;; Explicit type (http, irc, bbdb...).
|
||
((string-match org-link-types-re raw-link)
|
||
(setq type (match-string 1 raw-link))
|
||
(setq path (substring raw-link (match-end 0))))
|
||
;; Code-ref type: PATH is the name of the reference.
|
||
((and (string-match-p "\\`(" raw-link)
|
||
(string-match-p ")\\'" raw-link))
|
||
(setq type "coderef")
|
||
(setq path (substring raw-link 1 -1)))
|
||
;; Custom-id type: PATH is the name of the custom id.
|
||
((= (string-to-char raw-link) ?#)
|
||
(setq type "custom-id")
|
||
(setq path (substring raw-link 1)))
|
||
;; Fuzzy type: Internal link either matches a target, an
|
||
;; headline name or nothing. PATH is the target or
|
||
;; headline's name.
|
||
(t
|
||
(setq type "fuzzy")
|
||
(setq path raw-link))))
|
||
;; Type 3: Plain link, e.g., https://orgmode.org
|
||
((looking-at org-link-plain-re)
|
||
(setq format 'plain)
|
||
(setq raw-link (match-string-no-properties 0))
|
||
(setq type (match-string-no-properties 1))
|
||
(setq link-end (match-end 0))
|
||
(setq path (match-string-no-properties 2)))
|
||
;; Type 4: Angular link, e.g., <https://orgmode.org>. Unlike to
|
||
;; bracket links, follow RFC 3986 and remove any extra
|
||
;; whitespace in URI.
|
||
((looking-at org-link-angle-re)
|
||
(setq format 'angle)
|
||
(setq type (match-string-no-properties 1))
|
||
(setq link-end (match-end 0))
|
||
(setq raw-link
|
||
(buffer-substring-no-properties
|
||
(match-beginning 1) (match-end 2)))
|
||
(setq path (replace-regexp-in-string
|
||
"[ \t]*\n[ \t]*" "" (match-string-no-properties 2))))
|
||
(t (throw 'no-object nil)))
|
||
;; In any case, deduce end point after trailing white space from
|
||
;; LINK-END variable.
|
||
(save-excursion
|
||
(setq post-blank
|
||
(progn (goto-char link-end) (skip-chars-forward " \t")))
|
||
(setq end (point)))
|
||
;; Special "file"-type link processing. Extract opening
|
||
;; application and search option, if any. Also normalize URI.
|
||
(when (string-match "\\`file\\(?:\\+\\(.+\\)\\)?\\'" type)
|
||
(setq application (match-string 1 type))
|
||
(setq type "file")
|
||
(when (string-match "::\\(.*\\)\\'" path)
|
||
(setq search-option (match-string 1 path))
|
||
(setq path (replace-match "" nil nil path)))
|
||
(setq path (replace-regexp-in-string "\\`///*\\(.:\\)?/" "\\1/" path)))
|
||
;; Translate link, if `org-link-translation-function' is set.
|
||
(let ((trans (and (functionp org-link-translation-function)
|
||
(funcall org-link-translation-function type path))))
|
||
(when trans
|
||
(setq type (car trans))
|
||
(setq path (cdr trans))))
|
||
(list 'link
|
||
(list :type type
|
||
:path path
|
||
:format format
|
||
:raw-link (or raw-link path)
|
||
:application application
|
||
:search-option search-option
|
||
:begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank post-blank)))))
|
||
|
||
(defun org-element-link-interpreter (link contents)
|
||
"Interpret LINK object as Org syntax.
|
||
CONTENTS is the contents of the object, or nil."
|
||
(let ((type (org-element-property :type link))
|
||
(path (org-element-property :path link)))
|
||
(if (string= type "radio") path
|
||
(let ((fmt (pcase (org-element-property :format link)
|
||
;; Links with contents and internal links have to
|
||
;; use bracket syntax. Ignore `:format' in these
|
||
;; cases. This is also the default syntax when the
|
||
;; property is not defined, e.g., when the object
|
||
;; was crafted by the user.
|
||
((guard contents)
|
||
(format "[[%%s][%s]]"
|
||
;; Since this is going to be used as
|
||
;; a format string, escape percent signs
|
||
;; in description.
|
||
(replace-regexp-in-string "%" "%%" contents)))
|
||
((or `bracket
|
||
`nil
|
||
(guard (member type '("coderef" "custom-id" "fuzzy"))))
|
||
"[[%s]]")
|
||
;; Otherwise, just obey to `:format'.
|
||
(`angle "<%s>")
|
||
(`plain "%s")
|
||
(f (error "Wrong `:format' value: %s" f)))))
|
||
(format fmt
|
||
(pcase type
|
||
("coderef" (format "(%s)" path))
|
||
("custom-id" (concat "#" path))
|
||
("file"
|
||
(let ((app (org-element-property :application link))
|
||
(opt (org-element-property :search-option link)))
|
||
(concat type (and app (concat "+" app)) ":"
|
||
path
|
||
(and opt (concat "::" opt)))))
|
||
("fuzzy" path)
|
||
(_ (concat type ":" path))))))))
|
||
|
||
|
||
;;;; Macro
|
||
|
||
(defun org-element-macro-parser ()
|
||
"Parse macro at point, if any.
|
||
|
||
When at a macro, return a list whose car is `macro' and cdr
|
||
a plist with `:key', `:args', `:begin', `:end', `:value' and
|
||
`:post-blank' as keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the macro."
|
||
(save-excursion
|
||
(when (looking-at "{{{\\([a-zA-Z][-a-zA-Z0-9_]*\\)\\((\\([^\000]*?\\))\\)?}}}")
|
||
(let ((begin (point))
|
||
(key (downcase (match-string-no-properties 1)))
|
||
(value (match-string-no-properties 0))
|
||
(post-blank (progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")))
|
||
(end (point))
|
||
(args (pcase (match-string-no-properties 3)
|
||
(`nil nil)
|
||
(a (org-macro-extract-arguments
|
||
(replace-regexp-in-string
|
||
"[ \t\r\n]+" " " (org-trim a)))))))
|
||
(list 'macro
|
||
(list :key key
|
||
:value value
|
||
:args args
|
||
:begin begin
|
||
:end end
|
||
:post-blank post-blank))))))
|
||
|
||
(defun org-element-macro-interpreter (macro _)
|
||
"Interpret MACRO object as Org syntax."
|
||
(format "{{{%s%s}}}"
|
||
(org-element-property :key macro)
|
||
(pcase (org-element-property :args macro)
|
||
(`nil "")
|
||
(args (format "(%s)" (apply #'org-macro-escape-arguments args))))))
|
||
|
||
|
||
;;;; Radio-target
|
||
|
||
(defun org-element-radio-target-parser ()
|
||
"Parse radio target at point, if any.
|
||
|
||
When at a radio target, return a list whose car is `radio-target'
|
||
and cdr a plist with `:begin', `:end', `:contents-begin',
|
||
`:contents-end', `:value' and `:post-blank' as keywords.
|
||
Otherwise, return nil.
|
||
|
||
Assume point is at the radio target."
|
||
(save-excursion
|
||
(when (looking-at org-radio-target-regexp)
|
||
(let ((begin (point))
|
||
(contents-begin (match-beginning 1))
|
||
(contents-end (match-end 1))
|
||
(value (match-string-no-properties 1))
|
||
(post-blank (progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'radio-target
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank post-blank
|
||
:value value))))))
|
||
|
||
(defun org-element-radio-target-interpreter (_ contents)
|
||
"Interpret target object as Org syntax.
|
||
CONTENTS is the contents of the object."
|
||
(concat "<<<" contents ">>>"))
|
||
|
||
|
||
;;;; Statistics Cookie
|
||
|
||
(defun org-element-statistics-cookie-parser ()
|
||
"Parse statistics cookie at point, if any.
|
||
|
||
When at a statistics cookie, return a list whose car is
|
||
`statistics-cookie', and cdr a plist with `:begin', `:end',
|
||
`:value' and `:post-blank' keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the statistics-cookie."
|
||
(save-excursion
|
||
(when (looking-at "\\[[0-9]*\\(%\\|/[0-9]*\\)\\]")
|
||
(let* ((begin (point))
|
||
(value (buffer-substring-no-properties
|
||
(match-beginning 0) (match-end 0)))
|
||
(post-blank (progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'statistics-cookie
|
||
(list :begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank post-blank))))))
|
||
|
||
(defun org-element-statistics-cookie-interpreter (statistics-cookie _)
|
||
"Interpret STATISTICS-COOKIE object as Org syntax."
|
||
(org-element-property :value statistics-cookie))
|
||
|
||
|
||
;;;; Strike-Through
|
||
|
||
(defun org-element-strike-through-parser ()
|
||
"Parse strike-through object at point, if any.
|
||
|
||
When at a strike-through object, return a list whose car is
|
||
`strike-through' and cdr is a plist with `:begin', `:end',
|
||
`:contents-begin' and `:contents-end' and `:post-blank' keywords.
|
||
Otherwise, return nil.
|
||
|
||
Assume point is at the first plus sign marker."
|
||
(org-element--parse-generic-emphasis "+" 'strike-through))
|
||
|
||
(defun org-element-strike-through-interpreter (_ contents)
|
||
"Interpret strike-through object as Org syntax.
|
||
CONTENTS is the contents of the object."
|
||
(format "+%s+" contents))
|
||
|
||
|
||
;;;; Subscript
|
||
|
||
(defun org-element-subscript-parser ()
|
||
"Parse subscript at point, if any.
|
||
|
||
When at a subscript object, return a list whose car is
|
||
`subscript' and cdr a plist with `:begin', `:end',
|
||
`:contents-begin', `:contents-end', `:use-brackets-p' and
|
||
`:post-blank' as keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the underscore."
|
||
(save-excursion
|
||
(unless (bolp) (backward-char))
|
||
(when (looking-at org-match-substring-regexp)
|
||
(let ((bracketsp (match-beginning 4))
|
||
(begin (match-beginning 2))
|
||
(contents-begin (or (match-beginning 4)
|
||
(match-beginning 3)))
|
||
(contents-end (or (match-end 4) (match-end 3)))
|
||
(post-blank (progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'subscript
|
||
(list :begin begin
|
||
:end end
|
||
:use-brackets-p bracketsp
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank post-blank))))))
|
||
|
||
(defun org-element-subscript-interpreter (subscript contents)
|
||
"Interpret SUBSCRIPT object as Org syntax.
|
||
CONTENTS is the contents of the object."
|
||
(format
|
||
(if (org-element-property :use-brackets-p subscript) "_{%s}" "_%s")
|
||
contents))
|
||
|
||
|
||
;;;; Superscript
|
||
|
||
(defun org-element-superscript-parser ()
|
||
"Parse superscript at point, if any.
|
||
|
||
When at a superscript object, return a list whose car is
|
||
`superscript' and cdr a plist with `:begin', `:end',
|
||
`:contents-begin', `:contents-end', `:use-brackets-p' and
|
||
`:post-blank' as keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the caret."
|
||
(save-excursion
|
||
(unless (bolp) (backward-char))
|
||
(when (looking-at org-match-substring-regexp)
|
||
(let ((bracketsp (match-beginning 4))
|
||
(begin (match-beginning 2))
|
||
(contents-begin (or (match-beginning 4)
|
||
(match-beginning 3)))
|
||
(contents-end (or (match-end 4) (match-end 3)))
|
||
(post-blank (progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'superscript
|
||
(list :begin begin
|
||
:end end
|
||
:use-brackets-p bracketsp
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank post-blank))))))
|
||
|
||
(defun org-element-superscript-interpreter (superscript contents)
|
||
"Interpret SUPERSCRIPT object as Org syntax.
|
||
CONTENTS is the contents of the object."
|
||
(format
|
||
(if (org-element-property :use-brackets-p superscript) "^{%s}" "^%s")
|
||
contents))
|
||
|
||
|
||
;;;; Table Cell
|
||
|
||
(defun org-element-table-cell-parser ()
|
||
"Parse table cell at point.
|
||
Return a list whose car is `table-cell' and cdr is a plist
|
||
containing `:begin', `:end', `:contents-begin', `:contents-end'
|
||
and `:post-blank' keywords."
|
||
(looking-at "[ \t]*\\(.*?\\)[ \t]*\\(?:|\\|$\\)")
|
||
(let* ((begin (match-beginning 0))
|
||
(end (match-end 0))
|
||
(contents-begin (match-beginning 1))
|
||
(contents-end (match-end 1)))
|
||
(list 'table-cell
|
||
(list :begin begin
|
||
:end end
|
||
:contents-begin contents-begin
|
||
:contents-end contents-end
|
||
:post-blank 0))))
|
||
|
||
(defun org-element-table-cell-interpreter (_ contents)
|
||
"Interpret table-cell element as Org syntax.
|
||
CONTENTS is the contents of the cell, or nil."
|
||
(concat " " contents " |"))
|
||
|
||
|
||
;;;; Target
|
||
|
||
(defun org-element-target-parser ()
|
||
"Parse target at point, if any.
|
||
|
||
When at a target, return a list whose car is `target' and cdr
|
||
a plist with `:begin', `:end', `:value' and `:post-blank' as
|
||
keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the target."
|
||
(save-excursion
|
||
(when (looking-at org-target-regexp)
|
||
(let ((begin (point))
|
||
(value (match-string-no-properties 1))
|
||
(post-blank (progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")))
|
||
(end (point)))
|
||
(list 'target
|
||
(list :begin begin
|
||
:end end
|
||
:value value
|
||
:post-blank post-blank))))))
|
||
|
||
(defun org-element-target-interpreter (target _)
|
||
"Interpret TARGET object as Org syntax."
|
||
(format "<<%s>>" (org-element-property :value target)))
|
||
|
||
|
||
;;;; Timestamp
|
||
|
||
(defconst org-element--timestamp-regexp
|
||
(concat org-ts-regexp-both
|
||
"\\|"
|
||
"\\(?:<[0-9]+-[0-9]+-[0-9]+[^>\n]+?\\+[0-9]+[dwmy]>\\)"
|
||
"\\|"
|
||
"\\(?:<%%\\(?:([^>\n]+)\\)>\\)")
|
||
"Regexp matching any timestamp type object.")
|
||
|
||
(defun org-element-timestamp-parser ()
|
||
"Parse time stamp at point, if any.
|
||
|
||
When at a time stamp, return a list whose car is `timestamp', and
|
||
cdr a plist with `:type', `:raw-value', `:year-start',
|
||
`:month-start', `:day-start', `:hour-start', `:minute-start',
|
||
`:year-end', `:month-end', `:day-end', `:hour-end',
|
||
`:minute-end', `:repeater-type', `:repeater-value',
|
||
`:repeater-unit', `:warning-type', `:warning-value',
|
||
`:warning-unit', `:begin', `:end' and `:post-blank' keywords.
|
||
Otherwise, return nil.
|
||
|
||
Assume point is at the beginning of the timestamp."
|
||
(when (looking-at-p org-element--timestamp-regexp)
|
||
(save-excursion
|
||
(let* ((begin (point))
|
||
(activep (eq (char-after) ?<))
|
||
(raw-value
|
||
(progn
|
||
(looking-at (concat "\\([<[]\\(%%\\)?.*?\\)[]>]\\(?:--\\("
|
||
org-ts-regexp-both
|
||
"\\)\\)?"))
|
||
(match-string-no-properties 0)))
|
||
(date-start (match-string-no-properties 1))
|
||
(date-end (match-string 3))
|
||
(diaryp (match-beginning 2))
|
||
(post-blank (progn (goto-char (match-end 0))
|
||
(skip-chars-forward " \t")))
|
||
(end (point))
|
||
(time-range
|
||
(and (not diaryp)
|
||
(string-match
|
||
"[012]?[0-9]:[0-5][0-9]\\(-\\([012]?[0-9]\\):\\([0-5][0-9]\\)\\)"
|
||
date-start)
|
||
(cons (string-to-number (match-string 2 date-start))
|
||
(string-to-number (match-string 3 date-start)))))
|
||
(type (cond (diaryp 'diary)
|
||
((and activep (or date-end time-range)) 'active-range)
|
||
(activep 'active)
|
||
((or date-end time-range) 'inactive-range)
|
||
(t 'inactive)))
|
||
(repeater-props
|
||
(and (not diaryp)
|
||
(string-match "\\([.+]?\\+\\)\\([0-9]+\\)\\([hdwmy]\\)"
|
||
raw-value)
|
||
(list
|
||
:repeater-type
|
||
(let ((type (match-string 1 raw-value)))
|
||
(cond ((equal "++" type) 'catch-up)
|
||
((equal ".+" type) 'restart)
|
||
(t 'cumulate)))
|
||
:repeater-value (string-to-number (match-string 2 raw-value))
|
||
:repeater-unit
|
||
(pcase (string-to-char (match-string 3 raw-value))
|
||
(?h 'hour) (?d 'day) (?w 'week) (?m 'month) (_ 'year)))))
|
||
(warning-props
|
||
(and (not diaryp)
|
||
(string-match "\\(-\\)?-\\([0-9]+\\)\\([hdwmy]\\)" raw-value)
|
||
(list
|
||
:warning-type (if (match-string 1 raw-value) 'first 'all)
|
||
:warning-value (string-to-number (match-string 2 raw-value))
|
||
:warning-unit
|
||
(pcase (string-to-char (match-string 3 raw-value))
|
||
(?h 'hour) (?d 'day) (?w 'week) (?m 'month) (_ 'year)))))
|
||
year-start month-start day-start hour-start minute-start year-end
|
||
month-end day-end hour-end minute-end)
|
||
;; Parse date-start.
|
||
(unless diaryp
|
||
(let ((date (org-parse-time-string date-start t)))
|
||
(setq year-start (nth 5 date)
|
||
month-start (nth 4 date)
|
||
day-start (nth 3 date)
|
||
hour-start (nth 2 date)
|
||
minute-start (nth 1 date))))
|
||
;; Compute date-end. It can be provided directly in time-stamp,
|
||
;; or extracted from time range. Otherwise, it defaults to the
|
||
;; same values as date-start.
|
||
(unless diaryp
|
||
(let ((date (and date-end (org-parse-time-string date-end t))))
|
||
(setq year-end (or (nth 5 date) year-start)
|
||
month-end (or (nth 4 date) month-start)
|
||
day-end (or (nth 3 date) day-start)
|
||
hour-end (or (nth 2 date) (car time-range) hour-start)
|
||
minute-end (or (nth 1 date) (cdr time-range) minute-start))))
|
||
(list 'timestamp
|
||
(nconc (list :type type
|
||
:raw-value raw-value
|
||
:year-start year-start
|
||
:month-start month-start
|
||
:day-start day-start
|
||
:hour-start hour-start
|
||
:minute-start minute-start
|
||
:year-end year-end
|
||
:month-end month-end
|
||
:day-end day-end
|
||
:hour-end hour-end
|
||
:minute-end minute-end
|
||
:begin begin
|
||
:end end
|
||
:post-blank post-blank)
|
||
repeater-props
|
||
warning-props))))))
|
||
|
||
(defun org-element-timestamp-interpreter (timestamp _)
|
||
"Interpret TIMESTAMP object as Org syntax."
|
||
(let* ((repeat-string
|
||
(concat
|
||
(pcase (org-element-property :repeater-type timestamp)
|
||
(`cumulate "+") (`catch-up "++") (`restart ".+"))
|
||
(let ((val (org-element-property :repeater-value timestamp)))
|
||
(and val (number-to-string val)))
|
||
(pcase (org-element-property :repeater-unit timestamp)
|
||
(`hour "h") (`day "d") (`week "w") (`month "m") (`year "y"))))
|
||
(warning-string
|
||
(concat
|
||
(pcase (org-element-property :warning-type timestamp)
|
||
(`first "--") (`all "-"))
|
||
(let ((val (org-element-property :warning-value timestamp)))
|
||
(and val (number-to-string val)))
|
||
(pcase (org-element-property :warning-unit timestamp)
|
||
(`hour "h") (`day "d") (`week "w") (`month "m") (`year "y"))))
|
||
(build-ts-string
|
||
;; Build an Org timestamp string from TIME. ACTIVEP is
|
||
;; non-nil when time stamp is active. If WITH-TIME-P is
|
||
;; non-nil, add a time part. HOUR-END and MINUTE-END
|
||
;; specify a time range in the timestamp. REPEAT-STRING is
|
||
;; the repeater string, if any.
|
||
(lambda (time activep &optional with-time-p hour-end minute-end)
|
||
(let ((ts (format-time-string
|
||
(org-time-stamp-format with-time-p)
|
||
time)))
|
||
(when (and hour-end minute-end)
|
||
(string-match "[012]?[0-9]:[0-5][0-9]" ts)
|
||
(setq ts
|
||
(replace-match
|
||
(format "\\&-%02d:%02d" hour-end minute-end)
|
||
nil nil ts)))
|
||
(unless activep (setq ts (format "[%s]" (substring ts 1 -1))))
|
||
(dolist (s (list repeat-string warning-string))
|
||
(when (org-string-nw-p s)
|
||
(setq ts (concat (substring ts 0 -1)
|
||
" "
|
||
s
|
||
(substring ts -1)))))
|
||
;; Return value.
|
||
ts)))
|
||
(type (org-element-property :type timestamp)))
|
||
(pcase type
|
||
((or `active `inactive)
|
||
(let* ((minute-start (org-element-property :minute-start timestamp))
|
||
(minute-end (org-element-property :minute-end timestamp))
|
||
(hour-start (org-element-property :hour-start timestamp))
|
||
(hour-end (org-element-property :hour-end timestamp))
|
||
(time-range-p (and hour-start hour-end minute-start minute-end
|
||
(or (/= hour-start hour-end)
|
||
(/= minute-start minute-end)))))
|
||
(funcall
|
||
build-ts-string
|
||
(org-encode-time 0
|
||
(or minute-start 0)
|
||
(or hour-start 0)
|
||
(org-element-property :day-start timestamp)
|
||
(org-element-property :month-start timestamp)
|
||
(org-element-property :year-start timestamp))
|
||
(eq type 'active)
|
||
(and hour-start minute-start)
|
||
(and time-range-p hour-end)
|
||
(and time-range-p minute-end))))
|
||
((or `active-range `inactive-range)
|
||
(let ((minute-start (org-element-property :minute-start timestamp))
|
||
(minute-end (org-element-property :minute-end timestamp))
|
||
(hour-start (org-element-property :hour-start timestamp))
|
||
(hour-end (org-element-property :hour-end timestamp)))
|
||
(concat
|
||
(funcall
|
||
build-ts-string (org-encode-time
|
||
0
|
||
(or minute-start 0)
|
||
(or hour-start 0)
|
||
(org-element-property :day-start timestamp)
|
||
(org-element-property :month-start timestamp)
|
||
(org-element-property :year-start timestamp))
|
||
(eq type 'active-range)
|
||
(and hour-start minute-start))
|
||
"--"
|
||
(funcall build-ts-string
|
||
(org-encode-time
|
||
0
|
||
(or minute-end 0)
|
||
(or hour-end 0)
|
||
(org-element-property :day-end timestamp)
|
||
(org-element-property :month-end timestamp)
|
||
(org-element-property :year-end timestamp))
|
||
(eq type 'active-range)
|
||
(and hour-end minute-end)))))
|
||
(_ (org-element-property :raw-value timestamp)))))
|
||
|
||
|
||
;;;; Underline
|
||
|
||
(defun org-element-underline-parser ()
|
||
"Parse underline object at point, if any.
|
||
|
||
When at an underline object, return a list whose car is
|
||
`underline' and cdr is a plist with `:begin', `:end',
|
||
`:contents-begin' and `:contents-end' and `:post-blank' keywords.
|
||
Otherwise, return nil.
|
||
|
||
Assume point is at the first underscore marker."
|
||
(org-element--parse-generic-emphasis "_" 'underline))
|
||
|
||
(defun org-element-underline-interpreter (_ contents)
|
||
"Interpret underline object as Org syntax.
|
||
CONTENTS is the contents of the object."
|
||
(format "_%s_" contents))
|
||
|
||
|
||
;;;; Verbatim
|
||
|
||
(defun org-element-verbatim-parser ()
|
||
"Parse verbatim object at point, if any.
|
||
|
||
When at a verbatim object, return a list whose car is `verbatim'
|
||
and cdr is a plist with `:value', `:begin', `:end' and
|
||
`:post-blank' keywords. Otherwise, return nil.
|
||
|
||
Assume point is at the first equal sign marker."
|
||
(org-element--parse-generic-emphasis "=" 'verbatim))
|
||
|
||
(defun org-element-verbatim-interpreter (verbatim _)
|
||
"Interpret VERBATIM object as Org syntax."
|
||
(format "=%s=" (org-element-property :value verbatim)))
|
||
|
||
|
||
|
||
;;; Parsing Element Starting At Point
|
||
;;
|
||
;; `org-element--current-element' is the core function of this section.
|
||
;; It returns the Lisp representation of the element starting at
|
||
;; point.
|
||
|
||
(defvar org-element--cache-sync-requests); Declared later
|
||
(defun org-element--current-element (limit &optional granularity mode structure add-to-cache)
|
||
"Parse the element starting at point.
|
||
|
||
Return value is a list like (TYPE PROPS) where TYPE is the type
|
||
of the element and PROPS a plist of properties associated to the
|
||
element.
|
||
|
||
Possible types are defined in `org-element-all-elements'.
|
||
|
||
LIMIT bounds the search.
|
||
|
||
Optional argument GRANULARITY determines the depth of the
|
||
recursion. Allowed values are `headline', `greater-element',
|
||
`element', `object' or nil. When it is broader than `object' (or
|
||
nil), secondary values will not be parsed, since they only
|
||
contain objects.
|
||
|
||
Optional argument MODE, when non-nil, can be either
|
||
`first-section', `item', `node-property', `planning',
|
||
`property-drawer', `section', `table-row', or `top-comment'.
|
||
|
||
|
||
If STRUCTURE isn't provided but MODE is set to `item', it will be
|
||
computed.
|
||
|
||
Optional argument ADD-TO-CACHE, when non-nil, and when cache is active,
|
||
will also add current element to cache if it is not yet there. Use
|
||
this argument with care, as validity of the element in parse tree is
|
||
not checked.
|
||
|
||
This function assumes point is always at the beginning of the
|
||
element it has to parse."
|
||
(let* ((element (and (not (buffer-narrowed-p))
|
||
(org-element--cache-active-p)
|
||
(not org-element--cache-sync-requests)
|
||
(org-element--cache-find (point) t)))
|
||
(element (progn (while (and element
|
||
(not (and (eq (point) (org-element-property :begin element))
|
||
(eq mode (org-element-property :mode element)))))
|
||
(setq element (org-element-property :parent element)))
|
||
element))
|
||
(old-element element)
|
||
(element (when
|
||
(pcase (org-element-property :granularity element)
|
||
(`nil t)
|
||
(`object t)
|
||
(`element (not (memq granularity '(nil object))))
|
||
(`greater-element (not (memq granularity '(nil object element))))
|
||
(`headline (eq granularity 'headline)))
|
||
element)))
|
||
(if element
|
||
element
|
||
(save-excursion
|
||
(let ((case-fold-search t)
|
||
;; Determine if parsing depth allows for secondary strings
|
||
;; parsing. It only applies to elements referenced in
|
||
;; `org-element-secondary-value-alist'.
|
||
(raw-secondary-p (and granularity (not (eq granularity 'object))))
|
||
result)
|
||
(setq
|
||
result
|
||
(cond
|
||
;; Item.
|
||
((eq mode 'item)
|
||
(org-element-item-parser limit structure raw-secondary-p))
|
||
;; Table Row.
|
||
((eq mode 'table-row) (org-element-table-row-parser limit))
|
||
;; Node Property.
|
||
((eq mode 'node-property) (org-element-node-property-parser limit))
|
||
;; Headline.
|
||
((org-with-limited-levels (looking-at-p org-outline-regexp-bol))
|
||
(org-element-headline-parser limit raw-secondary-p))
|
||
;; Sections (must be checked after headline).
|
||
((eq mode 'section) (org-element-section-parser limit))
|
||
((eq mode 'first-section)
|
||
(org-element-section-parser
|
||
(or (save-excursion (org-with-limited-levels (outline-next-heading)))
|
||
limit)))
|
||
;; Comments.
|
||
((looking-at "^[ \t]*#\\(?: \\|$\\)")
|
||
(org-element-comment-parser limit))
|
||
;; Planning.
|
||
((and (eq mode 'planning)
|
||
(eq ?* (char-after (line-beginning-position 0)))
|
||
(looking-at org-element-planning-line-re))
|
||
(org-element-planning-parser limit))
|
||
;; Property drawer.
|
||
((and (pcase mode
|
||
(`planning (eq ?* (char-after (line-beginning-position 0))))
|
||
((or `property-drawer `top-comment)
|
||
(save-excursion
|
||
(beginning-of-line 0)
|
||
(not (looking-at "[[:blank:]]*$"))))
|
||
(_ nil))
|
||
(looking-at org-property-drawer-re))
|
||
(org-element-property-drawer-parser limit))
|
||
;; When not at bol, point is at the beginning of an item or
|
||
;; a footnote definition: next item is always a paragraph.
|
||
((not (bolp)) (org-element-paragraph-parser limit (list (point))))
|
||
;; Clock.
|
||
((looking-at org-element-clock-line-re)
|
||
(org-element-clock-parser limit))
|
||
;; Inlinetask.
|
||
((looking-at "^\\*+ ")
|
||
(org-element-inlinetask-parser limit raw-secondary-p))
|
||
;; From there, elements can have affiliated keywords.
|
||
(t (let ((affiliated (org-element--collect-affiliated-keywords
|
||
limit (memq granularity '(nil object)))))
|
||
(cond
|
||
;; Jumping over affiliated keywords put point off-limits.
|
||
;; Parse them as regular keywords.
|
||
((and (cdr affiliated) (>= (point) limit))
|
||
(goto-char (car affiliated))
|
||
(org-element-keyword-parser limit nil))
|
||
;; LaTeX Environment.
|
||
((looking-at org-element--latex-begin-environment)
|
||
(org-element-latex-environment-parser limit affiliated))
|
||
;; Drawer.
|
||
((looking-at org-element-drawer-re)
|
||
(org-element-drawer-parser limit affiliated))
|
||
;; Fixed Width
|
||
((looking-at "[ \t]*:\\( \\|$\\)")
|
||
(org-element-fixed-width-parser limit affiliated))
|
||
;; Inline Comments, Blocks, Babel Calls, Dynamic Blocks and
|
||
;; Keywords.
|
||
((looking-at "[ \t]*#\\+")
|
||
(goto-char (match-end 0))
|
||
(cond
|
||
((looking-at "BEGIN_\\(\\S-+\\)")
|
||
(beginning-of-line)
|
||
(funcall (pcase (upcase (match-string 1))
|
||
("CENTER" #'org-element-center-block-parser)
|
||
("COMMENT" #'org-element-comment-block-parser)
|
||
("EXAMPLE" #'org-element-example-block-parser)
|
||
("EXPORT" #'org-element-export-block-parser)
|
||
("QUOTE" #'org-element-quote-block-parser)
|
||
("SRC" #'org-element-src-block-parser)
|
||
("VERSE" #'org-element-verse-block-parser)
|
||
(_ #'org-element-special-block-parser))
|
||
limit
|
||
affiliated))
|
||
((looking-at "CALL:")
|
||
(beginning-of-line)
|
||
(org-element-babel-call-parser limit affiliated))
|
||
((save-excursion
|
||
(beginning-of-line)
|
||
(looking-at org-element-dynamic-block-open-re))
|
||
(beginning-of-line)
|
||
(org-element-dynamic-block-parser limit affiliated))
|
||
((looking-at "\\S-+:")
|
||
(beginning-of-line)
|
||
(org-element-keyword-parser limit affiliated))
|
||
(t
|
||
(beginning-of-line)
|
||
(org-element-paragraph-parser limit affiliated))))
|
||
;; Footnote Definition.
|
||
((looking-at org-footnote-definition-re)
|
||
(org-element-footnote-definition-parser limit affiliated))
|
||
;; Horizontal Rule.
|
||
((looking-at "[ \t]*-\\{5,\\}[ \t]*$")
|
||
(org-element-horizontal-rule-parser limit affiliated))
|
||
;; Diary Sexp.
|
||
((looking-at "%%(")
|
||
(org-element-diary-sexp-parser limit affiliated))
|
||
;; Table.
|
||
((or (looking-at "[ \t]*|")
|
||
;; There is no strict definition of a table.el
|
||
;; table. Try to prevent false positive while being
|
||
;; quick.
|
||
(let ((rule-regexp
|
||
(rx (zero-or-more (any " \t"))
|
||
"+"
|
||
(one-or-more (one-or-more "-") "+")
|
||
(zero-or-more (any " \t"))
|
||
eol))
|
||
(non-table.el-line
|
||
(rx bol
|
||
(zero-or-more (any " \t"))
|
||
(or eol (not (any "+| \t")))))
|
||
(next (line-beginning-position 2)))
|
||
;; Start with a full rule.
|
||
(and
|
||
(looking-at rule-regexp)
|
||
(< next limit) ;no room for a table.el table
|
||
(save-excursion
|
||
(end-of-line)
|
||
(cond
|
||
;; Must end with a full rule.
|
||
((not (re-search-forward non-table.el-line limit 'move))
|
||
(if (bolp) (forward-line -1) (beginning-of-line))
|
||
(looking-at rule-regexp))
|
||
;; Ignore pseudo-tables with a single
|
||
;; rule.
|
||
((= next (line-beginning-position))
|
||
nil)
|
||
;; Must end with a full rule.
|
||
(t
|
||
(forward-line -1)
|
||
(looking-at rule-regexp)))))))
|
||
(org-element-table-parser limit affiliated))
|
||
;; List.
|
||
((looking-at (org-item-re))
|
||
(org-element-plain-list-parser
|
||
limit affiliated
|
||
(or structure (org-element--list-struct limit))))
|
||
;; Default element: Paragraph.
|
||
(t (org-element-paragraph-parser limit affiliated)))))))
|
||
(when result
|
||
(org-element-put-property result :mode mode)
|
||
(org-element-put-property result :granularity granularity))
|
||
(when (and (not (buffer-narrowed-p))
|
||
(org-element--cache-active-p)
|
||
(not org-element--cache-sync-requests)
|
||
add-to-cache)
|
||
(if (not old-element)
|
||
(setq result (org-element--cache-put result))
|
||
(org-element-set-element old-element result)
|
||
(setq result old-element)))
|
||
result)))))
|
||
|
||
|
||
;; Most elements can have affiliated keywords. When looking for an
|
||
;; element beginning, we want to move before them, as they belong to
|
||
;; that element, and, in the meantime, collect information they give
|
||
;; into appropriate properties. Hence the following function.
|
||
|
||
(defun org-element--collect-affiliated-keywords (limit parse)
|
||
"Collect affiliated keywords from point down to LIMIT.
|
||
|
||
Return a list whose CAR is the position at the first of them and
|
||
CDR a plist of keywords and values and move point to the
|
||
beginning of the first line after them.
|
||
|
||
As a special case, if element doesn't start at the beginning of
|
||
the line (e.g., a paragraph starting an item), CAR is current
|
||
position of point and CDR is nil.
|
||
|
||
When PARSE is non-nil, values from keywords belonging to
|
||
`org-element-parsed-keywords' are parsed as secondary strings."
|
||
(if (not (bolp)) (list (point))
|
||
(let ((case-fold-search t)
|
||
(origin (point))
|
||
;; RESTRICT is the list of objects allowed in parsed
|
||
;; keywords value. If PARSE is nil, no object is allowed.
|
||
(restrict (and parse (org-element-restriction 'keyword)))
|
||
output)
|
||
(while (and (< (point) limit) (looking-at org-element--affiliated-re))
|
||
(let* ((raw-kwd (upcase (match-string 1)))
|
||
;; Apply translation to RAW-KWD. From there, KWD is
|
||
;; the official keyword.
|
||
(kwd (or (cdr (assoc raw-kwd
|
||
org-element-keyword-translation-alist))
|
||
raw-kwd))
|
||
;; PARSED? is non-nil when keyword should have its
|
||
;; value parsed.
|
||
(parsed? (member kwd org-element-parsed-keywords))
|
||
;; Find main value for any keyword.
|
||
(value
|
||
(let ((beg (match-end 0))
|
||
(end (save-excursion
|
||
(end-of-line)
|
||
(skip-chars-backward " \t")
|
||
(point))))
|
||
(if parsed?
|
||
(save-match-data
|
||
(org-element--parse-objects beg end nil restrict))
|
||
(org-trim (buffer-substring-no-properties beg end)))))
|
||
;; If KWD is a dual keyword, find its secondary value.
|
||
;; Maybe parse it.
|
||
(dual? (member kwd org-element-dual-keywords))
|
||
(dual-value
|
||
(and dual?
|
||
(let ((sec (match-string-no-properties 2)))
|
||
(cond
|
||
((and sec parsed?)
|
||
(save-match-data
|
||
(org-element--parse-objects
|
||
(match-beginning 2) (match-end 2) nil restrict)))
|
||
(sec sec)))))
|
||
;; Attribute a property name to KWD.
|
||
(kwd-sym (and kwd (intern (concat ":" (downcase kwd))))))
|
||
;; Now set final shape for VALUE.
|
||
(when dual?
|
||
(setq value (and (or value dual-value) (cons value dual-value))))
|
||
(when (or (member kwd org-element-multiple-keywords)
|
||
;; Attributes can always appear on multiple lines.
|
||
(string-match "^ATTR_" kwd))
|
||
(setq value (cons value (plist-get output kwd-sym))))
|
||
;; Eventually store the new value in OUTPUT.
|
||
(setq output (plist-put output kwd-sym value))
|
||
;; Move to next keyword.
|
||
(forward-line)))
|
||
;; If affiliated keywords are orphaned: move back to first one.
|
||
;; They will be parsed as a paragraph.
|
||
(when (looking-at "[ \t]*$") (goto-char origin) (setq output nil))
|
||
;; Return value.
|
||
(cons origin output))))
|
||
|
||
|
||
|
||
;;; The Org Parser
|
||
;;
|
||
;; The two major functions here are `org-element-parse-buffer', which
|
||
;; parses Org syntax inside the current buffer, taking into account
|
||
;; region, narrowing, or even visibility if specified, and
|
||
;; `org-element-parse-secondary-string', which parses objects within
|
||
;; a given string.
|
||
;;
|
||
;; The (almost) almighty `org-element-map' allows applying a function
|
||
;; on elements or objects matching some type, and accumulating the
|
||
;; resulting values. In an export situation, it also skips unneeded
|
||
;; parts of the parse tree.
|
||
|
||
(defun org-element-parse-buffer (&optional granularity visible-only)
|
||
"Recursively parse the buffer and return structure.
|
||
If narrowing is in effect, only parse the visible part of the
|
||
buffer.
|
||
|
||
Optional argument GRANULARITY determines the depth of the
|
||
recursion. It can be set to the following symbols:
|
||
|
||
`headline' Only parse headlines.
|
||
`greater-element' Don't recurse into greater elements except
|
||
headlines and sections. Thus, elements
|
||
parsed are the top-level ones.
|
||
`element' Parse everything but objects and plain text.
|
||
`object' Parse the complete buffer (default).
|
||
|
||
When VISIBLE-ONLY is non-nil, don't parse contents of hidden
|
||
elements.
|
||
|
||
An element or object is represented as a list with the
|
||
pattern (TYPE PROPERTIES CONTENTS), where :
|
||
|
||
TYPE is a symbol describing the element or object. See
|
||
`org-element-all-elements' and `org-element-all-objects' for an
|
||
exhaustive list of such symbols. One can retrieve it with
|
||
`org-element-type' function.
|
||
|
||
PROPERTIES is the list of attributes attached to the element or
|
||
object, as a plist. Although most of them are specific to the
|
||
element or object type, all types share `:begin', `:end',
|
||
`:post-blank' and `:parent' properties, which respectively
|
||
refer to buffer position where the element or object starts,
|
||
ends, the number of white spaces or blank lines after it, and
|
||
the element or object containing it. Properties values can be
|
||
obtained by using `org-element-property' function.
|
||
|
||
CONTENTS is a list of elements, objects or raw strings
|
||
contained in the current element or object, when applicable.
|
||
One can access them with `org-element-contents' function.
|
||
|
||
The Org buffer has `org-data' as type and nil as properties.
|
||
`org-element-map' function can be used to find specific elements
|
||
or objects within the parse tree.
|
||
|
||
This function assumes that current major mode is `org-mode'."
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(let ((org-data (org-element-org-data-parser))
|
||
(gc-cons-threshold #x40000000))
|
||
(org-skip-whitespace)
|
||
(org-element--parse-elements
|
||
(line-beginning-position) (point-max)
|
||
;; Start in `first-section' mode so text before the first
|
||
;; headline belongs to a section.
|
||
'first-section nil granularity visible-only org-data))))
|
||
|
||
(defun org-element-parse-secondary-string (string restriction &optional parent)
|
||
"Recursively parse objects in STRING and return structure.
|
||
|
||
RESTRICTION is a symbol limiting the object types that will be
|
||
looked after.
|
||
|
||
Optional argument PARENT, when non-nil, is the element or object
|
||
containing the secondary string. It is used to set correctly
|
||
`:parent' property within the string.
|
||
|
||
If STRING is the empty string or nil, return nil."
|
||
(cond
|
||
((not string) nil)
|
||
((equal string "") nil)
|
||
(t (let ((local-variables (buffer-local-variables)))
|
||
(with-temp-buffer
|
||
(dolist (v local-variables)
|
||
(ignore-errors
|
||
(if (symbolp v) (makunbound v)
|
||
;; Don't set file name to avoid mishandling hooks (bug#44524)
|
||
(unless (memq (car v) '(buffer-file-name buffer-file-truename))
|
||
(set (make-local-variable (car v)) (cdr v))))))
|
||
;; Transferring local variables may put the temporary buffer
|
||
;; into a read-only state. Make sure we can insert STRING.
|
||
(let ((inhibit-read-only t)) (insert string))
|
||
;; Prevent "Buffer *temp* modified; kill anyway?".
|
||
(restore-buffer-modified-p nil)
|
||
(org-element--parse-objects
|
||
(point-min) (point-max) nil restriction parent))))))
|
||
|
||
(defun org-element-map
|
||
(data types fun &optional info first-match no-recursion with-affiliated)
|
||
"Map a function on selected elements or objects.
|
||
|
||
DATA is a parse tree (for example, returned by
|
||
`org-element-parse-buffer'), an element, an object, a string, or a
|
||
list of such constructs. TYPES is a symbol or list of symbols of
|
||
elements or object types (see `org-element-all-elements' and
|
||
`org-element-all-objects' for a complete list of types). FUN is the
|
||
function called on the matching element or object. It has to accept
|
||
one argument: the element or object itself.
|
||
|
||
When optional argument INFO is non-nil, it should be a plist
|
||
holding export options. In that case, parts of the parse tree
|
||
not exportable according to that property list will be skipped.
|
||
|
||
When optional argument FIRST-MATCH is non-nil, stop at the first
|
||
match for which FUN doesn't return nil, and return that value.
|
||
|
||
Optional argument NO-RECURSION is a symbol or a list of symbols
|
||
representing elements or objects types. `org-element-map' won't
|
||
enter any recursive element or object whose type belongs to that
|
||
list. Though, FUN can still be applied on them.
|
||
|
||
When optional argument WITH-AFFILIATED is non-nil, FUN will also
|
||
apply to matching objects within parsed affiliated keywords (see
|
||
`org-element-parsed-keywords').
|
||
|
||
Nil values returned from FUN do not appear in the results.
|
||
|
||
|
||
Examples:
|
||
---------
|
||
|
||
Assuming TREE is a variable containing an Org buffer parse tree,
|
||
the following example will return a flat list of all `src-block'
|
||
and `example-block' elements in it:
|
||
|
||
(setq tree (org-element-parse-buffer))
|
||
(org-element-map tree \\='(example-block src-block) #\\='identity)
|
||
|
||
The following snippet will find the first headline with a level
|
||
of 1 and a \"phone\" tag, and will return its beginning position:
|
||
|
||
(org-element-map tree \\='headline
|
||
(lambda (hl)
|
||
(and (= (org-element-property :level hl) 1)
|
||
(member \"phone\" (org-element-property :tags hl))
|
||
(org-element-property :begin hl)))
|
||
nil t)
|
||
|
||
The next example will return a flat list of all `plain-list' type
|
||
elements in TREE that are not a sub-list themselves:
|
||
|
||
(org-element-map tree \\='plain-list #\\='identity nil nil \\='plain-list)
|
||
|
||
Eventually, this example will return a flat list of all `bold'
|
||
type objects containing a `latex-snippet' type object, even
|
||
looking into captions:
|
||
|
||
(org-element-map tree \\='bold
|
||
(lambda (b)
|
||
(and (org-element-map b \\='latex-snippet #\\='identity nil t) b))
|
||
nil nil nil t)"
|
||
(declare (indent 2))
|
||
;; Ensure TYPES and NO-RECURSION are a list, even of one element.
|
||
(let* ((types (if (listp types) types (list types)))
|
||
(no-recursion (if (listp no-recursion) no-recursion
|
||
(list no-recursion)))
|
||
;; Recursion depth is determined by --CATEGORY.
|
||
(--category
|
||
(catch :--found
|
||
(let ((category 'greater-elements)
|
||
(all-objects (cons 'plain-text org-element-all-objects)))
|
||
(dolist (type types category)
|
||
(cond ((memq type all-objects)
|
||
;; If one object is found, the function has
|
||
;; to recurse into every object.
|
||
(throw :--found 'objects))
|
||
((not (memq type org-element-greater-elements))
|
||
;; If one regular element is found, the
|
||
;; function has to recurse, at least, into
|
||
;; every element it encounters.
|
||
(and (not (eq category 'elements))
|
||
(setq category 'elements))))))))
|
||
(--ignore-list (plist-get info :ignore-list))
|
||
--acc)
|
||
(letrec ((--walk-tree
|
||
(lambda (--data)
|
||
;; Recursively walk DATA. INFO, if non-nil, is a plist
|
||
;; holding contextual information.
|
||
(let ((--type (org-element-type --data)))
|
||
(cond
|
||
((not --data))
|
||
;; Ignored element in an export context.
|
||
((and info (memq --data --ignore-list)))
|
||
;; List of elements or objects.
|
||
((not --type) (mapc --walk-tree --data))
|
||
;; Unconditionally enter parse trees.
|
||
((eq --type 'org-data)
|
||
(mapc --walk-tree (org-element-contents --data)))
|
||
(t
|
||
;; Check if TYPE is matching among TYPES. If so,
|
||
;; apply FUN to --DATA and accumulate return value
|
||
;; into --ACC (or exit if FIRST-MATCH is non-nil).
|
||
(when (memq --type types)
|
||
(let ((result (funcall fun --data)))
|
||
(cond ((not result))
|
||
(first-match (throw :--map-first-match result))
|
||
(t (push result --acc)))))
|
||
;; If --DATA has a secondary string that can contain
|
||
;; objects with their type among TYPES, look inside.
|
||
(when (and (eq --category 'objects) (not (stringp --data)))
|
||
(dolist (p (cdr (assq --type
|
||
org-element-secondary-value-alist)))
|
||
(funcall --walk-tree (org-element-property p --data))))
|
||
;; If --DATA has any parsed affiliated keywords and
|
||
;; WITH-AFFILIATED is non-nil, look for objects in
|
||
;; them.
|
||
(when (and with-affiliated
|
||
(eq --category 'objects)
|
||
(eq (org-element-class --data) 'element))
|
||
(dolist (kwd-pair org-element--parsed-properties-alist)
|
||
(let ((kwd (car kwd-pair))
|
||
(value (org-element-property (cdr kwd-pair) --data)))
|
||
;; Pay attention to the type of parsed
|
||
;; keyword. In particular, preserve order for
|
||
;; multiple keywords.
|
||
(cond
|
||
((not value))
|
||
((member kwd org-element-dual-keywords)
|
||
(if (member kwd org-element-multiple-keywords)
|
||
(dolist (line (reverse value))
|
||
(funcall --walk-tree (cdr line))
|
||
(funcall --walk-tree (car line)))
|
||
(funcall --walk-tree (cdr value))
|
||
(funcall --walk-tree (car value))))
|
||
((member kwd org-element-multiple-keywords)
|
||
(mapc --walk-tree (reverse value)))
|
||
(t (funcall --walk-tree value))))))
|
||
;; Determine if a recursion into --DATA is possible.
|
||
(cond
|
||
;; --TYPE is explicitly removed from recursion.
|
||
((memq --type no-recursion))
|
||
;; --DATA has no contents.
|
||
((not (org-element-contents --data)))
|
||
;; Looking for greater elements but --DATA is
|
||
;; simply an element or an object.
|
||
((and (eq --category 'greater-elements)
|
||
(not (memq --type org-element-greater-elements))))
|
||
;; Looking for elements but --DATA is an object.
|
||
((and (eq --category 'elements)
|
||
(eq (org-element-class --data) 'object)))
|
||
;; In any other case, map contents.
|
||
(t (mapc --walk-tree (org-element-contents --data))))))))))
|
||
(catch :--map-first-match
|
||
(funcall --walk-tree data)
|
||
;; Return value in a proper order.
|
||
(nreverse --acc)))))
|
||
|
||
;; The following functions are internal parts of the parser.
|
||
;;
|
||
;; The first one, `org-element--parse-elements' acts at the element's
|
||
;; level.
|
||
;;
|
||
;; The second one, `org-element--parse-objects' applies on all objects
|
||
;; of a paragraph or a secondary string. It calls
|
||
;; `org-element--object-lex' to find the next object in the current
|
||
;; container.
|
||
|
||
(defsubst org-element--next-mode (mode type parent?)
|
||
"Return next mode according to current one.
|
||
|
||
MODE is a symbol representing the expectation about the next
|
||
element or object. Meaningful values are `first-section',
|
||
`item', `node-property', `planning', `property-drawer',
|
||
`section', `table-row', `top-comment', and nil.
|
||
|
||
TYPE is the type of the current element or object.
|
||
|
||
If PARENT? is non-nil, assume the next element or object will be
|
||
located inside the current one."
|
||
(if parent?
|
||
(pcase type
|
||
(`headline 'section)
|
||
((and (guard (eq mode 'first-section)) `section) 'top-comment)
|
||
((and (guard (eq mode 'org-data)) `org-data) 'first-section)
|
||
((and (guard (not mode)) `org-data) 'first-section)
|
||
(`inlinetask 'planning)
|
||
(`plain-list 'item)
|
||
(`property-drawer 'node-property)
|
||
(`section 'planning)
|
||
(`table 'table-row))
|
||
(pcase mode
|
||
(`item 'item)
|
||
(`node-property 'node-property)
|
||
((and `planning (guard (eq type 'planning))) 'property-drawer)
|
||
(`table-row 'table-row)
|
||
((and `top-comment (guard (eq type 'comment))) 'property-drawer))))
|
||
|
||
(defun org-element--parse-elements
|
||
(beg end mode structure granularity visible-only acc)
|
||
"Parse elements between BEG and END positions.
|
||
|
||
MODE prioritizes some elements over the others. It can be set to
|
||
`first-section', `item', `node-property', `planning',
|
||
`property-drawer', `section', `table-row', `top-comment', or nil.
|
||
|
||
When value is `item', STRUCTURE will be used as the current list
|
||
structure.
|
||
|
||
GRANULARITY determines the depth of the recursion. See
|
||
`org-element-parse-buffer' for more information.
|
||
|
||
When VISIBLE-ONLY is non-nil, don't parse contents of hidden
|
||
elements.
|
||
|
||
Elements are accumulated into ACC."
|
||
(save-excursion
|
||
(goto-char beg)
|
||
;; When parsing only headlines, skip any text before first one.
|
||
(when (and (eq granularity 'headline) (not (org-at-heading-p)))
|
||
(org-with-limited-levels (outline-next-heading)))
|
||
(let (elements)
|
||
(while (< (point) end)
|
||
;; Visible only: skip invisible parts due to folding.
|
||
(if (and visible-only (org-invisible-p nil t))
|
||
(progn
|
||
(goto-char (org-find-visible))
|
||
(when (and (eolp) (not (eobp))) (forward-char)))
|
||
;; Find current element's type and parse it accordingly to
|
||
;; its category.
|
||
(let* ((element (org-element-copy
|
||
;; `org-element--current-element' may return cached
|
||
;; elements. Below code reassigns
|
||
;; `:parent' property of the element and
|
||
;; may interfere with cache
|
||
;; synchronization if parent element is not
|
||
;; yet in cache. Moreover, the returned
|
||
;; structure may be altered by caller code
|
||
;; arbitrarily. Hence, we return a copy of
|
||
;; the potentially cached element to make
|
||
;; potential modifications safe for element
|
||
;; cache.
|
||
(org-element--current-element
|
||
end granularity mode structure)))
|
||
(type (org-element-type element))
|
||
(cbeg (org-element-property :contents-begin element)))
|
||
(goto-char (org-element-property :end element))
|
||
;; Fill ELEMENT contents by side-effect.
|
||
(cond
|
||
;; If element has no contents, don't modify it.
|
||
((not cbeg))
|
||
;; Greater element: parse it between `contents-begin' and
|
||
;; `contents-end'. Ensure GRANULARITY allows recursion,
|
||
;; or ELEMENT is a headline, in which case going inside
|
||
;; is mandatory, in order to get sub-level headings.
|
||
((and (memq type org-element-greater-elements)
|
||
(or (memq granularity '(element object nil))
|
||
(and (eq granularity 'greater-element)
|
||
(eq type 'section))
|
||
(eq type 'headline)))
|
||
(org-element--parse-elements
|
||
cbeg (org-element-property :contents-end element)
|
||
;; Possibly switch to a special mode.
|
||
(org-element--next-mode mode type t)
|
||
(and (memq type '(item plain-list))
|
||
(org-element-property :structure element))
|
||
granularity visible-only element))
|
||
;; ELEMENT has contents. Parse objects inside, if
|
||
;; GRANULARITY allows it.
|
||
((memq granularity '(object nil))
|
||
(org-element--parse-objects
|
||
cbeg (org-element-property :contents-end element) element
|
||
(org-element-restriction type))))
|
||
(push (org-element-put-property element :parent acc) elements)
|
||
;; Update mode.
|
||
(setq mode (org-element--next-mode mode type nil)))))
|
||
;; Return result.
|
||
(org-element-put-property acc :granularity granularity)
|
||
(apply #'org-element-set-contents acc (nreverse elements)))))
|
||
|
||
(defun org-element--object-lex (restriction)
|
||
"Return next object in current buffer or nil.
|
||
RESTRICTION is a list of object types, as symbols, that should be
|
||
looked after. This function assumes that the buffer is narrowed
|
||
to an appropriate container (e.g., a paragraph)."
|
||
(cond
|
||
((memq 'table-cell restriction) (org-element-table-cell-parser))
|
||
((memq 'citation-reference restriction)
|
||
(org-element-citation-reference-parser))
|
||
(t
|
||
(let* ((start (point))
|
||
(limit
|
||
;; Object regexp sometimes needs to have a peek at
|
||
;; a character ahead. Therefore, when there is a hard
|
||
;; limit, make it one more than the true beginning of the
|
||
;; radio target.
|
||
(save-excursion
|
||
(cond ((not org-target-link-regexp) nil)
|
||
((not (memq 'link restriction)) nil)
|
||
((progn
|
||
(unless (bolp) (forward-char -1))
|
||
(not (re-search-forward org-target-link-regexp nil t)))
|
||
nil)
|
||
;; Since we moved backward, we do not want to
|
||
;; match again an hypothetical 1-character long
|
||
;; radio link before us. Realizing that this can
|
||
;; only happen if such a radio link starts at
|
||
;; beginning of line, we prevent this here.
|
||
((and (= start (1+ (line-beginning-position)))
|
||
(= start (match-end 1)))
|
||
(and (re-search-forward org-target-link-regexp nil t)
|
||
(1+ (match-beginning 1))))
|
||
(t (1+ (match-beginning 1))))))
|
||
found)
|
||
(save-excursion
|
||
(while (and (not found)
|
||
(re-search-forward org-element--object-regexp limit 'move))
|
||
(goto-char (match-beginning 0))
|
||
(let ((result (match-string 0)))
|
||
(setq found
|
||
(cond
|
||
((string-prefix-p "call_" result t)
|
||
(and (memq 'inline-babel-call restriction)
|
||
(org-element-inline-babel-call-parser)))
|
||
((string-prefix-p "src_" result t)
|
||
(and (memq 'inline-src-block restriction)
|
||
(org-element-inline-src-block-parser)))
|
||
(t
|
||
(pcase (char-after)
|
||
(?^ (and (memq 'superscript restriction)
|
||
(org-element-superscript-parser)))
|
||
(?_ (or (and (memq 'subscript restriction)
|
||
(org-element-subscript-parser))
|
||
(and (memq 'underline restriction)
|
||
(org-element-underline-parser))))
|
||
(?* (and (memq 'bold restriction)
|
||
(org-element-bold-parser)))
|
||
(?/ (and (memq 'italic restriction)
|
||
(org-element-italic-parser)))
|
||
(?~ (and (memq 'code restriction)
|
||
(org-element-code-parser)))
|
||
(?= (and (memq 'verbatim restriction)
|
||
(org-element-verbatim-parser)))
|
||
(?+ (and (memq 'strike-through restriction)
|
||
(org-element-strike-through-parser)))
|
||
(?@ (and (memq 'export-snippet restriction)
|
||
(org-element-export-snippet-parser)))
|
||
(?{ (and (memq 'macro restriction)
|
||
(org-element-macro-parser)))
|
||
(?$ (and (memq 'latex-fragment restriction)
|
||
(org-element-latex-fragment-parser)))
|
||
(?<
|
||
(if (eq (aref result 1) ?<)
|
||
(or (and (memq 'radio-target restriction)
|
||
(org-element-radio-target-parser))
|
||
(and (memq 'target restriction)
|
||
(org-element-target-parser)))
|
||
(or (and (memq 'timestamp restriction)
|
||
(org-element-timestamp-parser))
|
||
(and (memq 'link restriction)
|
||
(org-element-link-parser)))))
|
||
(?\\
|
||
(if (eq (aref result 1) ?\\)
|
||
(and (memq 'line-break restriction)
|
||
(org-element-line-break-parser))
|
||
(or (and (memq 'entity restriction)
|
||
(org-element-entity-parser))
|
||
(and (memq 'latex-fragment restriction)
|
||
(org-element-latex-fragment-parser)))))
|
||
(?\[
|
||
(pcase (aref result 1)
|
||
((and ?\[
|
||
(guard (memq 'link restriction)))
|
||
(org-element-link-parser))
|
||
((and ?f
|
||
(guard (memq 'footnote-reference restriction)))
|
||
(org-element-footnote-reference-parser))
|
||
((and ?c
|
||
(guard (memq 'citation restriction)))
|
||
(org-element-citation-parser))
|
||
((and (or ?% ?/)
|
||
(guard (memq 'statistics-cookie restriction)))
|
||
(org-element-statistics-cookie-parser))
|
||
(_
|
||
(or (and (memq 'timestamp restriction)
|
||
(org-element-timestamp-parser))
|
||
(and (memq 'statistics-cookie restriction)
|
||
(org-element-statistics-cookie-parser))))))
|
||
;; This is probably a plain link.
|
||
(_ (and (memq 'link restriction)
|
||
(org-element-link-parser)))))))
|
||
(or (eobp) (forward-char))))
|
||
(cond (found)
|
||
(limit (forward-char -1)
|
||
(org-element-link-parser)) ;radio link
|
||
(t nil)))))))
|
||
|
||
(defun org-element--parse-objects (beg end acc restriction &optional parent)
|
||
"Parse objects between BEG and END and return recursive structure.
|
||
|
||
Objects are accumulated in ACC. RESTRICTION is a list of object
|
||
successors which are allowed in the current object.
|
||
|
||
ACC becomes the parent for all parsed objects. However, if ACC
|
||
is nil (i.e., a secondary string is being parsed) and optional
|
||
argument PARENT is non-nil, use it as the parent for all objects.
|
||
Eventually, if both ACC and PARENT are nil, the common parent is
|
||
the list of objects itself."
|
||
(save-excursion
|
||
(save-restriction
|
||
(narrow-to-region beg end)
|
||
(goto-char (point-min))
|
||
(let (next-object contents)
|
||
(while (and (not (eobp))
|
||
(setq next-object (org-element--object-lex restriction)))
|
||
;; Text before any object.
|
||
(let ((obj-beg (org-element-property :begin next-object)))
|
||
(unless (= (point) obj-beg)
|
||
(let ((text (buffer-substring-no-properties (point) obj-beg)))
|
||
(push (if acc (org-element-put-property text :parent acc) text)
|
||
contents))))
|
||
;; Object...
|
||
(let ((obj-end (org-element-property :end next-object))
|
||
(cont-beg (org-element-property :contents-begin next-object)))
|
||
(when acc (org-element-put-property next-object :parent acc))
|
||
(push (if cont-beg
|
||
;; Fill contents of NEXT-OBJECT if possible.
|
||
(org-element--parse-objects
|
||
cont-beg
|
||
(org-element-property :contents-end next-object)
|
||
next-object
|
||
(org-element-restriction next-object))
|
||
next-object)
|
||
contents)
|
||
(goto-char obj-end)))
|
||
;; Text after last object.
|
||
(unless (eobp)
|
||
(let ((text (buffer-substring-no-properties (point) end)))
|
||
(push (if acc (org-element-put-property text :parent acc) text)
|
||
contents)))
|
||
;; Result. Set appropriate parent.
|
||
(if acc (apply #'org-element-set-contents acc (nreverse contents))
|
||
(let* ((contents (nreverse contents))
|
||
(parent (or parent contents)))
|
||
(dolist (datum contents contents)
|
||
(org-element-put-property datum :parent parent))))))))
|
||
|
||
|
||
|
||
;;; Towards A Bijective Process
|
||
;;
|
||
;; The parse tree obtained with `org-element-parse-buffer' is really
|
||
;; a snapshot of the corresponding Org buffer. Therefore, it can be
|
||
;; interpreted and expanded into a string with canonical Org syntax.
|
||
;; Hence `org-element-interpret-data'.
|
||
;;
|
||
;; The function relies internally on
|
||
;; `org-element--interpret-affiliated-keywords'.
|
||
|
||
;;;###autoload
|
||
(defun org-element-interpret-data (data)
|
||
"Interpret DATA as Org syntax.
|
||
DATA is a parse tree, an element, an object or a secondary string
|
||
to interpret. Return Org syntax as a string."
|
||
(letrec ((fun
|
||
(lambda (data parent)
|
||
(let* ((type (org-element-type data))
|
||
;; Find interpreter for current object or
|
||
;; element. If it doesn't exist (e.g. this is
|
||
;; a pseudo object or element), return contents,
|
||
;; if any.
|
||
(interpret
|
||
(let ((fun (intern
|
||
(format "org-element-%s-interpreter" type))))
|
||
(if (fboundp fun) fun (lambda (_ contents) contents))))
|
||
(results
|
||
(cond
|
||
;; Secondary string.
|
||
((not type)
|
||
(mapconcat (lambda (obj) (funcall fun obj parent))
|
||
data
|
||
""))
|
||
;; Full Org document.
|
||
((eq type 'org-data)
|
||
(mapconcat (lambda (obj) (funcall fun obj parent))
|
||
(org-element-contents data)
|
||
""))
|
||
;; Plain text: return it.
|
||
((stringp data) data)
|
||
;; Element or object without contents.
|
||
((not (org-element-contents data))
|
||
(funcall interpret data nil))
|
||
;; Element or object with contents.
|
||
(t
|
||
(funcall
|
||
interpret
|
||
data
|
||
;; Recursively interpret contents.
|
||
(mapconcat
|
||
(lambda (datum) (funcall fun datum data))
|
||
(org-element-contents
|
||
(if (not (memq type '(paragraph verse-block)))
|
||
data
|
||
;; Fix indentation of elements containing
|
||
;; objects. We ignore `table-row'
|
||
;; elements as they are one line long
|
||
;; anyway.
|
||
(org-element-normalize-contents
|
||
data
|
||
;; When normalizing first paragraph of
|
||
;; an item or a footnote-definition,
|
||
;; ignore first line's indentation.
|
||
(and (eq type 'paragraph)
|
||
(memq (org-element-type parent)
|
||
'(footnote-definition item))
|
||
(eq data (car (org-element-contents parent)))
|
||
(eq (org-element-property :pre-blank parent)
|
||
0)))))
|
||
""))))))
|
||
(if (memq type '(org-data nil)) results
|
||
;; Build white spaces. If no `:post-blank' property
|
||
;; is specified, assume its value is 0.
|
||
(let ((blank (or (org-element-property :post-blank data) 0)))
|
||
(if (eq (org-element-class data parent) 'object)
|
||
(concat results (make-string blank ?\s))
|
||
(concat (org-element--interpret-affiliated-keywords data)
|
||
(org-element-normalize-string results)
|
||
(make-string blank ?\n)))))))))
|
||
(funcall fun data nil)))
|
||
|
||
(defun org-element--interpret-affiliated-keywords (element)
|
||
"Return ELEMENT's affiliated keywords as Org syntax.
|
||
If there is no affiliated keyword, return the empty string."
|
||
(let ((keyword-to-org
|
||
(lambda (key value)
|
||
(let (dual)
|
||
(when (member key org-element-dual-keywords)
|
||
(setq dual (cdr value) value (car value)))
|
||
(concat "#+" (downcase key)
|
||
(and dual
|
||
(format "[%s]" (org-element-interpret-data dual)))
|
||
": "
|
||
(if (member key org-element-parsed-keywords)
|
||
(org-element-interpret-data value)
|
||
value)
|
||
"\n")))))
|
||
(mapconcat
|
||
(lambda (prop)
|
||
(let ((value (org-element-property prop element))
|
||
(keyword (upcase (substring (symbol-name prop) 1))))
|
||
(when value
|
||
(if (or (member keyword org-element-multiple-keywords)
|
||
;; All attribute keywords can have multiple lines.
|
||
(string-match "^ATTR_" keyword))
|
||
(mapconcat (lambda (line) (funcall keyword-to-org keyword line))
|
||
(reverse value)
|
||
"")
|
||
(funcall keyword-to-org keyword value)))))
|
||
;; List all ELEMENT's properties matching an attribute line or an
|
||
;; affiliated keyword, but ignore translated keywords since they
|
||
;; cannot belong to the property list.
|
||
(cl-loop for prop in (nth 1 element) by 'cddr
|
||
when (let ((keyword (upcase (substring (symbol-name prop) 1))))
|
||
(or (string-match "^ATTR_" keyword)
|
||
(and
|
||
(member keyword org-element-affiliated-keywords)
|
||
(not (assoc keyword
|
||
org-element-keyword-translation-alist)))))
|
||
collect prop)
|
||
"")))
|
||
|
||
;; Because interpretation of the parse tree must return the same
|
||
;; number of blank lines between elements and the same number of white
|
||
;; space after objects, some special care must be given to white
|
||
;; spaces.
|
||
;;
|
||
;; The first function, `org-element-normalize-string', ensures any
|
||
;; string different from the empty string will end with a single
|
||
;; newline character.
|
||
;;
|
||
;; The second function, `org-element-normalize-contents', removes
|
||
;; global indentation from the contents of the current element.
|
||
|
||
(defun org-element-normalize-string (s)
|
||
"Ensure string S ends with a single newline character.
|
||
|
||
If S isn't a string return it unchanged. If S is the empty
|
||
string, return it. Otherwise, return a new string with a single
|
||
newline character at its end."
|
||
(cond
|
||
((not (stringp s)) s)
|
||
((string= "" s) "")
|
||
(t (and (string-match "\\(\n[ \t]*\\)*\\'" s)
|
||
(replace-match "\n" nil nil s)))))
|
||
|
||
(defun org-element-normalize-contents (element &optional ignore-first)
|
||
"Normalize plain text in ELEMENT's contents.
|
||
|
||
ELEMENT must only contain plain text and objects.
|
||
|
||
If optional argument IGNORE-FIRST is non-nil, ignore first line's
|
||
indentation to compute maximal common indentation.
|
||
|
||
Return the normalized element that is element with global
|
||
indentation removed from its contents."
|
||
(letrec ((find-min-ind
|
||
;; Return minimal common indentation within BLOB. This is
|
||
;; done by walking recursively BLOB and updating MIN-IND
|
||
;; along the way. FIRST-FLAG is non-nil when the next
|
||
;; object is expected to be a string that doesn't start
|
||
;; with a newline character. It happens for strings at
|
||
;; the beginnings of the contents or right after a line
|
||
;; break.
|
||
(lambda (blob first-flag min-ind)
|
||
(dolist (datum (org-element-contents blob) min-ind)
|
||
(when first-flag
|
||
(setq first-flag nil)
|
||
(cond
|
||
;; Objects cannot start with spaces: in this
|
||
;; case, indentation is 0.
|
||
((not (stringp datum)) (throw :zero 0))
|
||
((not (string-match
|
||
"\\`\\([ \t]+\\)\\([^ \t\n]\\|\n\\|\\'\\)" datum))
|
||
(throw :zero 0))
|
||
((equal (match-string 2 datum) "\n")
|
||
(put-text-property
|
||
(match-beginning 1) (match-end 1) 'org-ind 'empty datum))
|
||
(t
|
||
(let ((i (string-width (match-string 1 datum))))
|
||
(put-text-property
|
||
(match-beginning 1) (match-end 1) 'org-ind i datum)
|
||
(setq min-ind (min i min-ind))))))
|
||
(cond
|
||
((stringp datum)
|
||
(let ((s 0))
|
||
(while (string-match
|
||
"\n\\([ \t]*\\)\\([^ \t\n]\\|\n\\|\\'\\)" datum s)
|
||
(setq s (match-end 1))
|
||
(cond
|
||
((equal (match-string 1 datum) "")
|
||
(unless (member (match-string 2 datum) '("" "\n"))
|
||
(throw :zero 0)))
|
||
((equal (match-string 2 datum) "\n")
|
||
(put-text-property (match-beginning 1) (match-end 1)
|
||
'org-ind 'empty datum))
|
||
(t
|
||
(let ((i (string-width (match-string 1 datum))))
|
||
(put-text-property (match-beginning 1) (match-end 1)
|
||
'org-ind i datum)
|
||
(setq min-ind (min i min-ind))))))))
|
||
((eq (org-element-type datum) 'line-break)
|
||
(setq first-flag t))
|
||
((memq (org-element-type datum) org-element-recursive-objects)
|
||
(setq min-ind
|
||
(funcall find-min-ind datum first-flag min-ind)))))))
|
||
(min-ind
|
||
(catch :zero
|
||
(funcall find-min-ind
|
||
element (not ignore-first) most-positive-fixnum))))
|
||
(if (or (zerop min-ind) (= min-ind most-positive-fixnum)) element
|
||
;; Build ELEMENT back, replacing each string with the same
|
||
;; string minus common indentation.
|
||
(letrec ((build
|
||
(lambda (datum)
|
||
;; Return DATUM with all its strings indentation
|
||
;; shortened from MIN-IND white spaces.
|
||
(setcdr
|
||
(cdr datum)
|
||
(mapcar
|
||
(lambda (object)
|
||
(cond
|
||
((stringp object)
|
||
(with-temp-buffer
|
||
(insert object)
|
||
(let ((s (point-min)))
|
||
(while (setq s (text-property-not-all
|
||
s (point-max) 'org-ind nil))
|
||
(goto-char s)
|
||
(let ((i (get-text-property s 'org-ind)))
|
||
(delete-region s (progn
|
||
(skip-chars-forward " \t")
|
||
(point)))
|
||
(when (integerp i) (indent-to (- i min-ind))))))
|
||
(buffer-string)))
|
||
((memq (org-element-type object)
|
||
org-element-recursive-objects)
|
||
(funcall build object))
|
||
(t object)))
|
||
(org-element-contents datum)))
|
||
datum)))
|
||
(funcall build element)))))
|
||
|
||
|
||
|
||
;;; Cache
|
||
;;
|
||
;; Implement a caching mechanism for `org-element-at-point', `org-element-context', and for
|
||
;; fast mapping across Org elements in `org-element-cache-map', which see.
|
||
;;
|
||
;; When cache is enabled, the elements returned by `org-element-at-point' and
|
||
;; `org-element-context' are returned by reference. Altering these elements will
|
||
;; also alter their cache representation. The same is true for
|
||
;; elements passed to mapping function in `org-element-cache-map'.
|
||
;;
|
||
;; Public functions are: `org-element-cache-reset', `org-element-cache-refresh', and
|
||
;; `org-element-cache-map'.
|
||
;;
|
||
;; Cache can be controlled using `org-element-use-cache' and `org-element-cache-persistent'.
|
||
;; `org-element-cache-sync-idle-time', `org-element-cache-sync-duration' and
|
||
;; `org-element-cache-sync-break' can be tweaked to control caching behavior.
|
||
;;
|
||
;; Internally, parsed elements are stored in an AVL tree,
|
||
;; `org-element--cache'. This tree is updated lazily: whenever
|
||
;; a change happens to the buffer, a synchronization request is
|
||
;; registered in `org-element--cache-sync-requests' (see
|
||
;; `org-element--cache-submit-request'). During idle time, requests
|
||
;; are processed by `org-element--cache-sync'. Synchronization also
|
||
;; happens when an element is required from the cache. In this case,
|
||
;; the process stops as soon as the needed element is up-to-date.
|
||
;;
|
||
;; A synchronization request can only apply on a synchronized part of
|
||
;; the cache. Therefore, the cache is updated at least to the
|
||
;; location where the new request applies. Thus, requests are ordered
|
||
;; from left to right and all elements starting before the first
|
||
;; request are correct. This property is used by functions like
|
||
;; `org-element--cache-find' to retrieve elements in the part of the
|
||
;; cache that can be trusted.
|
||
;;
|
||
;; A request applies to every element, starting from its original
|
||
;; location (or key, see below). When a request is processed, it
|
||
;; moves forward and may collide the next one. In this case, both
|
||
;; requests are merged into a new one that starts from that element.
|
||
;; As a consequence, the whole synchronization complexity does not
|
||
;; depend on the number of pending requests, but on the number of
|
||
;; elements the very first request will be applied on.
|
||
;;
|
||
;; Elements cannot be accessed through their beginning position, which
|
||
;; may or may not be up-to-date. Instead, each element in the tree is
|
||
;; associated to a key, obtained with `org-element--cache-key'. This
|
||
;; mechanism is robust enough to preserve total order among elements
|
||
;; even when the tree is only partially synchronized.
|
||
;;
|
||
;; The cache code debugging is fairly complex because cache request
|
||
;; state is often hard to reproduce. An extensive diagnostics
|
||
;; functionality is built into the cache code to assist hunting bugs.
|
||
;; See `org-element--cache-self-verify', `org-element--cache-self-verify-frequency',
|
||
;; `org-element--cache-diagnostics', `org-element--cache-diagnostics-level',
|
||
;; `org-element--cache-diagnostics-ring-size', `org-element--cache-map-statistics',
|
||
;; `org-element--cache-map-statistics-threshold'.
|
||
|
||
;;;###autoload
|
||
(defvar org-element-use-cache t
|
||
"Non-nil when Org parser should cache its results.")
|
||
|
||
(defvar org-element-cache-persistent t
|
||
"Non-nil when cache should persist between Emacs sessions.")
|
||
|
||
(defvar org-element-cache-sync-idle-time 0.6
|
||
"Length, in seconds, of idle time before syncing cache.")
|
||
|
||
(defvar org-element-cache-sync-duration 0.04
|
||
"Maximum duration, as a time value, for a cache synchronization.
|
||
If the synchronization is not over after this delay, the process
|
||
pauses and resumes after `org-element-cache-sync-break'
|
||
seconds.")
|
||
|
||
(defvar org-element-cache-sync-break 0.3
|
||
"Duration, as a time value, of the pause between synchronizations.
|
||
See `org-element-cache-sync-duration' for more information.")
|
||
|
||
(defvar org-element--cache-self-verify nil
|
||
"Activate extra consistency checks for the cache.
|
||
|
||
This may cause serious performance degradation depending on the value
|
||
of `org-element--cache-self-verify-frequency'.
|
||
|
||
When set to symbol `backtrace', record and display backtrace log if
|
||
any inconsistency is detected.")
|
||
|
||
(defvar org-element--cache-self-verify-frequency 0.03
|
||
"Frequency of cache element verification.
|
||
|
||
This number is a probability to check an element requested from cache
|
||
to be correct. Setting this to a value less than 0.0001 is useless.")
|
||
|
||
(defvar org-element--cache-diagnostics nil
|
||
"Print detailed diagnostics of cache processing.")
|
||
|
||
(defvar org-element--cache-map-statistics nil
|
||
"Print statistics for `org-element-cache-map'.")
|
||
|
||
(defvar org-element--cache-map-statistics-threshold 0.1
|
||
"Time threshold in seconds to log statistics for `org-element-cache-map'.")
|
||
|
||
(defvar org-element--cache-diagnostics-level 2
|
||
"Detail level of the diagnostics.")
|
||
|
||
(defvar-local org-element--cache-diagnostics-ring nil
|
||
"Ring containing last `org-element--cache-diagnostics-ring-size'
|
||
cache process log entries.")
|
||
|
||
(defvar org-element--cache-diagnostics-ring-size 5000
|
||
"Size of `org-element--cache-diagnostics-ring'.")
|
||
|
||
;;;; Data Structure
|
||
|
||
(defvar-local org-element--cache nil
|
||
"AVL tree used to cache elements.
|
||
Each node of the tree contains an element. Comparison is done
|
||
with `org-element--cache-compare'. This cache is used in
|
||
`org-element-at-point'.")
|
||
|
||
(defvar-local org-element--headline-cache nil
|
||
"AVL tree used to cache headline and inlinetask elements.
|
||
Each node of the tree contains an element. Comparison is done
|
||
with `org-element--cache-compare'. This cache is used in
|
||
`org-element-cache-map'.")
|
||
|
||
(defconst org-element--cache-hash-size 16
|
||
"Cache size for recent cached calls to `org-element--cache-find'.
|
||
|
||
This extra caching is based on the following paper:
|
||
Pugh [Information Processing Letters] (1990) Slow optimally balanced
|
||
search strategies vs. cached fast uniformly balanced search
|
||
strategies. http://dx.doi.org/10.1016/0020-0190(90)90130-P
|
||
|
||
Also, see `org-element--cache-hash-left' and `org-element--cache-hash-right'.")
|
||
(defvar-local org-element--cache-hash-left nil
|
||
"Cached elements from `org-element--cache' for fast O(1) lookup.
|
||
When non-nil, it should be a vector representing POS arguments of
|
||
`org-element--cache-find' called with nil SIDE argument.
|
||
Also, see `org-element--cache-hash-size'.")
|
||
(defvar-local org-element--cache-hash-right nil
|
||
"Cached elements from `org-element--cache' for fast O(1) lookup.
|
||
When non-nil, it should be a vector representing POS arguments of
|
||
`org-element--cache-find' called with non-nil, non-`both' SIDE argument.
|
||
Also, see `org-element--cache-hash-size'.")
|
||
|
||
(defvar org-element--cache-hash-statistics '(0 . 0)
|
||
"Cons cell storing how Org makes use of `org-element--cache-find' caching.
|
||
The car is the number of successful uses and cdr is the total calls to
|
||
`org-element--cache-find'.")
|
||
(defvar org-element--cache-hash-nocache 0
|
||
"Number of calls to `org-element--cache-has' with `both' SIDE argument.
|
||
These calls are not cached by hash. See `org-element--cache-hash-size'.")
|
||
|
||
(defvar-local org-element--cache-size 0
|
||
"Size of the `org-element--cache'.
|
||
|
||
Storing value is variable is faster because `avl-tree-size' is O(N).")
|
||
|
||
(defvar-local org-element--headline-cache-size 0
|
||
"Size of the `org-element--headline-cache'.
|
||
|
||
Storing value is variable is faster because `avl-tree-size' is O(N).")
|
||
|
||
(defvar-local org-element--cache-sync-requests nil
|
||
"List of pending synchronization requests.
|
||
|
||
A request is a vector with the following pattern:
|
||
|
||
[NEXT BEG END OFFSET PARENT PHASE]
|
||
|
||
Processing a synchronization request consists of three phases:
|
||
|
||
0. Delete modified elements,
|
||
1. Fill missing area in cache,
|
||
2. Shift positions and re-parent elements after the changes.
|
||
|
||
During phase 0, NEXT is the key of the first element to be
|
||
removed, BEG and END is buffer position delimiting the
|
||
modifications. Elements starting between them (inclusive) are
|
||
removed. So are elements whose parent is removed. PARENT, when
|
||
non-nil, is the common parent of all the elements between BEG and END.
|
||
|
||
It is guaranteed that only a single phase 0 request exists at any
|
||
moment of time. If it does, it must be the first request in the list.
|
||
|
||
During phase 1, NEXT is the key of the next known element in
|
||
cache and BEG its beginning position. Parse buffer between that
|
||
element and the one before it in order to determine the parent of
|
||
the next element. Set PARENT to the element containing NEXT.
|
||
|
||
During phase 2, NEXT is the key of the next element to shift in
|
||
the parse tree. All elements starting from this one have their
|
||
properties relative to buffer positions shifted by integer
|
||
OFFSET and, if they belong to element PARENT, are adopted by it.
|
||
|
||
PHASE specifies the phase number, as an integer.
|
||
|
||
For any synchronization request, all the later requests in the cache
|
||
must not start at or before END. See `org-element--cache-submit-request'.")
|
||
|
||
(defvar-local org-element--cache-sync-timer nil
|
||
"Timer used for cache synchronization.")
|
||
|
||
(defvar-local org-element--cache-sync-keys-value nil
|
||
"Id value used to identify keys during synchronization.
|
||
See `org-element--cache-key' for more information.")
|
||
|
||
(defvar-local org-element--cache-change-tic nil
|
||
"Last `buffer-chars-modified-tick' for registered changes.")
|
||
|
||
(defvar-local org-element--cache-last-buffer-size nil
|
||
"Last value of `buffer-size' for registered changes.")
|
||
|
||
(defvar org-element--cache-non-modifying-commands
|
||
'(org-agenda
|
||
org-agenda-redo
|
||
org-sparse-tree
|
||
org-occur
|
||
org-columns
|
||
org-columns-redo
|
||
org-columns-new
|
||
org-columns-delete
|
||
org-columns-compute
|
||
org-columns-insert-dblock
|
||
org-agenda-columns
|
||
org-ctrl-c-ctrl-c)
|
||
"List of commands that are not expected to change the cache state.
|
||
|
||
This variable is used to determine when re-parsing buffer is not going
|
||
to slow down the command.
|
||
|
||
If the commands end up modifying the cache, the worst case scenario is
|
||
performance drop. So, advising these commands is safe. Yet, it is
|
||
better to remove the commands advised in such a way from this list.")
|
||
|
||
(defmacro org-element--request-key (request)
|
||
"Get NEXT part of a `org-element--cache-sync-requests' REQUEST."
|
||
`(aref ,request 0))
|
||
|
||
(defmacro org-element--request-beg (request)
|
||
"Get BEG part of a `org-element--cache-sync-requests' REQUEST."
|
||
`(aref ,request 1))
|
||
|
||
(defmacro org-element--request-end (request)
|
||
"Get END part of a `org-element--cache-sync-requests' REQUEST."
|
||
`(aref ,request 2))
|
||
|
||
(defmacro org-element--request-offset (request)
|
||
"Get OFFSET part of a `org-element--cache-sync-requests' REQUEST."
|
||
`(aref ,request 3))
|
||
|
||
(defmacro org-element--request-parent (request)
|
||
"Get PARENT part of a `org-element--cache-sync-requests' REQUEST."
|
||
`(aref ,request 4))
|
||
|
||
(defmacro org-element--request-phase (request)
|
||
"Get PHASE part of a `org-element--cache-sync-requests' REQUEST."
|
||
`(aref ,request 5))
|
||
|
||
(defmacro org-element--format-element (element)
|
||
"Format ELEMENT for printing in diagnostics."
|
||
`(let ((print-length 50)
|
||
(print-level 5))
|
||
(prin1-to-string ,element)))
|
||
|
||
(defmacro org-element--cache-log-message (format-string &rest args)
|
||
"Add a new log message for org-element-cache."
|
||
`(when (or org-element--cache-diagnostics
|
||
(eq org-element--cache-self-verify 'backtrace))
|
||
(let* ((format-string (concat (format "org-element-cache diagnostics(%s): "
|
||
(buffer-name (current-buffer)))
|
||
,format-string))
|
||
(format-string (funcall #'format format-string ,@args)))
|
||
(if org-element--cache-diagnostics
|
||
(display-warning 'org-element-cache format-string)
|
||
(unless org-element--cache-diagnostics-ring
|
||
(setq org-element--cache-diagnostics-ring
|
||
(make-ring org-element--cache-diagnostics-ring-size)))
|
||
(ring-insert org-element--cache-diagnostics-ring format-string)))))
|
||
|
||
(defmacro org-element--cache-warn (format-string &rest args)
|
||
"Raise warning for org-element-cache."
|
||
`(let* ((format-string (funcall #'format ,format-string ,@args))
|
||
(format-string
|
||
(if (or (not org-element--cache-diagnostics-ring)
|
||
(not (eq 'backtrace org-element--cache-self-verify)))
|
||
format-string
|
||
(prog1
|
||
(concat (format "Warning(%s): "
|
||
(buffer-name (current-buffer)))
|
||
format-string
|
||
"\nBacktrace:\n "
|
||
(mapconcat #'identity
|
||
(ring-elements org-element--cache-diagnostics-ring)
|
||
"\n "))
|
||
(setq org-element--cache-diagnostics-ring nil)))))
|
||
(if (and (boundp 'org-batch-test) org-batch-test)
|
||
(error "%s" (concat "org-element--cache: " format-string))
|
||
(display-warning 'org-element-cache
|
||
(concat "org-element--cache: " format-string)))))
|
||
|
||
(defsubst org-element--cache-key (element)
|
||
"Return a unique key for ELEMENT in cache tree.
|
||
|
||
Keys are used to keep a total order among elements in the cache.
|
||
Comparison is done with `org-element--cache-key-less-p'.
|
||
|
||
When no synchronization is taking place, a key is simply the
|
||
beginning position of the element, or that position plus one in
|
||
the case of an first item (respectively row) in
|
||
a list (respectively a table). They key of a section is its beginning
|
||
position minus one.
|
||
|
||
During a synchronization, the key is the one the element had when
|
||
the cache was synchronized for the last time. Elements added to
|
||
cache during the synchronization get a new key generated with
|
||
`org-element--cache-generate-key'.
|
||
|
||
Such keys are stored inside the element property
|
||
`:org-element--cache-sync-key'. The property is a cons containing
|
||
current `org-element--cache-sync-keys-value' and the element key."
|
||
(or (when (eq org-element--cache-sync-keys-value (car (org-element-property :org-element--cache-sync-key element)))
|
||
(cdr (org-element-property :org-element--cache-sync-key element)))
|
||
(let* ((begin (org-element-property :begin element))
|
||
;; Increase beginning position of items (respectively
|
||
;; table rows) by one, so the first item can get
|
||
;; a different key from its parent list (respectively
|
||
;; table).
|
||
(key (if (memq (org-element-type element) '(item table-row))
|
||
(1+ begin)
|
||
;; Decrease beginning position of sections by one,
|
||
;; so that the first element of the section get
|
||
;; different key from the parent section.
|
||
(if (eq (org-element-type element) 'section)
|
||
(1- begin)
|
||
(if (eq (org-element-type element) 'org-data)
|
||
(- begin 2)
|
||
begin)))))
|
||
(when org-element--cache-sync-requests
|
||
(org-element-put-property
|
||
element
|
||
:org-element--cache-sync-key
|
||
(cons org-element--cache-sync-keys-value key)))
|
||
key)))
|
||
|
||
(defun org-element--cache-generate-key (lower upper)
|
||
"Generate a key between LOWER and UPPER.
|
||
|
||
LOWER and UPPER are fixnums or lists of same, possibly empty.
|
||
|
||
If LOWER and UPPER are equals, return LOWER. Otherwise, return
|
||
a unique key, as an integer or a list of integers, according to
|
||
the following rules:
|
||
|
||
- LOWER and UPPER are compared level-wise until values differ.
|
||
|
||
- If, at a given level, LOWER and UPPER differ from more than
|
||
2, the new key shares all the levels above with LOWER and
|
||
gets a new level. Its value is the mean between LOWER and
|
||
UPPER:
|
||
|
||
(1 2) + (1 4) --> (1 3)
|
||
|
||
- If LOWER has no value to compare with, it is assumed that its
|
||
value is `most-negative-fixnum'. E.g.,
|
||
|
||
(1 1) + (1 1 2)
|
||
|
||
is equivalent to
|
||
|
||
(1 1 m) + (1 1 2)
|
||
|
||
where m is `most-negative-fixnum'. Likewise, if UPPER is
|
||
short of levels, the current value is `most-positive-fixnum'.
|
||
|
||
- If they differ from only one, the new key inherits from
|
||
current LOWER level and fork it at the next level. E.g.,
|
||
|
||
(2 1) + (3 3)
|
||
|
||
is equivalent to
|
||
|
||
(2 1) + (2 M)
|
||
|
||
where M is `most-positive-fixnum'.
|
||
|
||
- If the key is only one level long, it is returned as an
|
||
integer:
|
||
|
||
(1 2) + (3 2) --> 2
|
||
|
||
When they are not equals, the function assumes that LOWER is
|
||
lesser than UPPER, per `org-element--cache-key-less-p'."
|
||
(if (equal lower upper) lower
|
||
(let ((lower (if (integerp lower) (list lower) lower))
|
||
(upper (if (integerp upper) (list upper) upper))
|
||
skip-upper key)
|
||
(catch 'exit
|
||
(while t
|
||
(let ((min (or (car lower) most-negative-fixnum))
|
||
(max (cond (skip-upper most-positive-fixnum)
|
||
((car upper))
|
||
(t most-positive-fixnum))))
|
||
(if (< (1+ min) max)
|
||
(let ((mean (+ (ash min -1) (ash max -1) (logand min max 1))))
|
||
(throw 'exit (if key (nreverse (cons mean key)) mean)))
|
||
(when (and (< min max) (not skip-upper))
|
||
;; When at a given level, LOWER and UPPER differ from
|
||
;; 1, ignore UPPER altogether. Instead create a key
|
||
;; between LOWER and the greatest key with the same
|
||
;; prefix as LOWER so far.
|
||
(setq skip-upper t))
|
||
(push min key)
|
||
(setq lower (cdr lower) upper (cdr upper)))))))))
|
||
|
||
(defsubst org-element--cache-key-less-p (a b)
|
||
"Non-nil if key A is less than key B.
|
||
A and B are either integers or lists of integers, as returned by
|
||
`org-element--cache-key'.
|
||
|
||
Note that it is not reliable to compare buffer position with the cache
|
||
keys. They keys may be larger compared to actual element :begin
|
||
position."
|
||
(if (integerp a) (if (integerp b) (< a b) (<= a (car b)))
|
||
(if (integerp b) (< (car a) b)
|
||
(catch 'exit
|
||
(while (and a b)
|
||
(cond ((car-less-than-car a b) (throw 'exit t))
|
||
((car-less-than-car b a) (throw 'exit nil))
|
||
(t (setq a (cdr a) b (cdr b)))))
|
||
;; If A is empty, either keys are equal (B is also empty) and
|
||
;; we return nil, or A is lesser than B (B is longer) and we
|
||
;; return a non-nil value.
|
||
;;
|
||
;; If A is not empty, B is necessarily empty and A is greater
|
||
;; than B (A is longer). Therefore, return nil.
|
||
(and (null a) b)))))
|
||
|
||
(defun org-element--cache-compare (a b)
|
||
"Non-nil when element A is located before element B."
|
||
(org-element--cache-key-less-p (org-element--cache-key a) (org-element--cache-key b)))
|
||
|
||
(defsubst org-element--cache-root ()
|
||
"Return root value in `org-element--cache' .
|
||
This function assumes `org-element--cache' is a valid AVL tree."
|
||
(avl-tree--node-left (avl-tree--dummyroot org-element--cache)))
|
||
|
||
(defsubst org-element--headline-cache-root ()
|
||
"Return root value in `org-element--headline-cache' .
|
||
This function assumes `org-element--headline-cache' is a valid AVL tree."
|
||
(avl-tree--node-left (avl-tree--dummyroot org-element--headline-cache)))
|
||
|
||
;;;; Tools
|
||
|
||
;; FIXME: Ideally, this should be inlined to avoid overheads, but
|
||
;; inlined functions should be declared before the code that uses them
|
||
;; and some code above does use `org-element--cache-active-p'. Moving this
|
||
;; declaration on top would require restructuring the whole cache
|
||
;; section.
|
||
(defun org-element--cache-active-p (&optional called-from-cache-change-func-p)
|
||
"Non-nil when cache is active in current buffer."
|
||
(org-with-base-buffer nil
|
||
(and org-element-use-cache
|
||
org-element--cache
|
||
(or called-from-cache-change-func-p
|
||
(eq org-element--cache-change-tic (buffer-chars-modified-tick))
|
||
(and
|
||
;; org-num-mode calls some Org structure analysis functions
|
||
;; that can trigger cache update in the middle of changes. See
|
||
;; `org-num--verify' calling `org-num--skip-value' calling
|
||
;; `org-entry-get' that uses cache.
|
||
;; Forcefully disable cache when called from inside a
|
||
;; modification hook, where `inhibit-modification-hooks' is set
|
||
;; to t.
|
||
(not inhibit-modification-hooks)
|
||
;; `combine-change-calls' sets `after-change-functions' to
|
||
;; nil. We need not to use cache inside
|
||
;; `combine-change-calls' because the buffer is potentially
|
||
;; changed without notice (the change will be registered
|
||
;; after exiting the `combine-change-calls' body though).
|
||
(catch :inhibited
|
||
(org-fold-core-cycle-over-indirect-buffers
|
||
(unless (memq #'org-element--cache-after-change after-change-functions)
|
||
(throw :inhibited nil)))
|
||
t))))))
|
||
|
||
;; FIXME: Remove after we establish that hashing is effective.
|
||
(defun org-element-cache-hash-show-statistics ()
|
||
"Display efficiency of O(1) query cache for `org-element--cache-find'.
|
||
|
||
This extra caching is based on the following paper:
|
||
Pugh [Information Processing Letters] (1990) Slow optimally balanced
|
||
search strategies vs. cached fast uniformly balanced search
|
||
strategies. http://dx.doi.org/10.1016/0020-0190(90)90130-P
|
||
|
||
Also, see `org-element--cache-size'."
|
||
(interactive)
|
||
(message "%.2f%% of cache searches hashed, %.2f%% non-hashable."
|
||
(* 100
|
||
(/ (float (car org-element--cache-hash-statistics))
|
||
(cdr org-element--cache-hash-statistics)))
|
||
(* 100
|
||
(/ (float org-element--cache-hash-nocache)
|
||
(cdr org-element--cache-hash-statistics)))))
|
||
|
||
(defun org-element--cache-find (pos &optional side)
|
||
"Find element in cache starting at POS or before.
|
||
|
||
POS refers to a buffer position.
|
||
|
||
When optional argument SIDE is non-nil, the function checks for
|
||
elements starting at or past POS instead. If SIDE is `both', the
|
||
function returns a cons cell where car is the first element
|
||
starting at or before POS and cdr the first element starting
|
||
after POS.
|
||
|
||
The function can only find elements in the synchronized part of
|
||
the cache."
|
||
(org-with-base-buffer nil
|
||
(let* ((limit (and org-element--cache-sync-requests
|
||
(org-element--request-key (car org-element--cache-sync-requests))))
|
||
(node (org-element--cache-root))
|
||
(hash-pos (unless (eq side 'both)
|
||
(mod (org-knuth-hash pos)
|
||
org-element--cache-hash-size)))
|
||
(hashed (if (not side)
|
||
(aref org-element--cache-hash-left hash-pos)
|
||
(unless (eq side 'both)
|
||
(aref org-element--cache-hash-right hash-pos))))
|
||
lower upper)
|
||
;; `org-element--cache-key-less-p' does not accept markers.
|
||
(when (markerp pos) (setq pos (marker-position pos)))
|
||
(cl-incf (cdr org-element--cache-hash-statistics))
|
||
(when (eq side 'both) (cl-incf org-element--cache-hash-nocache))
|
||
(if (and hashed (not (eq side 'both))
|
||
(or (not limit)
|
||
;; Limit can be a list key.
|
||
(org-element--cache-key-less-p
|
||
(org-element--cache-key hashed)
|
||
limit))
|
||
(= pos (org-element-property :begin hashed))
|
||
;; We cannot rely on element :begin for elements with
|
||
;; children starting at the same pos.
|
||
(not (memq (org-element-type hashed)
|
||
'(section org-data table)))
|
||
(org-element-property :cached hashed))
|
||
(progn
|
||
(cl-incf (car org-element--cache-hash-statistics))
|
||
hashed)
|
||
(while node
|
||
(let* ((element (avl-tree--node-data node))
|
||
(begin (org-element-property :begin element)))
|
||
(cond
|
||
((and limit
|
||
(not (org-element--cache-key-less-p
|
||
(org-element--cache-key element) limit)))
|
||
(setq node (avl-tree--node-left node)))
|
||
((> begin pos)
|
||
(setq upper element
|
||
node (avl-tree--node-left node)))
|
||
((or (< begin pos)
|
||
;; If the element is section or org-data, we also need
|
||
;; to check the following element.
|
||
(memq (org-element-type element) '(section org-data)))
|
||
(setq lower element
|
||
node (avl-tree--node-right node)))
|
||
;; We found an element in cache starting at POS. If `side'
|
||
;; is `both' we also want the next one in order to generate
|
||
;; a key in-between.
|
||
;;
|
||
;; If the element is the first row or item in a table or
|
||
;; a plain list, we always return the table or the plain
|
||
;; list.
|
||
;;
|
||
;; In any other case, we return the element found.
|
||
((eq side 'both)
|
||
(setq lower element)
|
||
(setq node (avl-tree--node-right node)))
|
||
((and (memq (org-element-type element) '(item table-row))
|
||
(let ((parent (org-element-property :parent element)))
|
||
(and (= (org-element-property :begin element)
|
||
(org-element-property :contents-begin parent))
|
||
(setq node nil
|
||
lower parent
|
||
upper parent)))))
|
||
(t
|
||
(setq node nil
|
||
lower element
|
||
upper element)))))
|
||
(if (not side)
|
||
(aset org-element--cache-hash-left hash-pos lower)
|
||
(unless (eq side 'both)
|
||
(aset org-element--cache-hash-right hash-pos lower)))
|
||
(pcase side
|
||
(`both (cons lower upper))
|
||
(`nil lower)
|
||
(_ upper))))))
|
||
|
||
(defun org-element--cache-put (element)
|
||
"Store ELEMENT in current buffer's cache, if allowed."
|
||
(org-with-base-buffer nil
|
||
(when (org-element--cache-active-p)
|
||
(when org-element--cache-sync-requests
|
||
;; During synchronization, first build an appropriate key for
|
||
;; the new element so `avl-tree-enter' can insert it at the
|
||
;; right spot in the cache.
|
||
(let* ((keys (org-element--cache-find
|
||
(org-element-property :begin element) 'both))
|
||
(new-key (org-element--cache-generate-key
|
||
(and (car keys) (org-element--cache-key (car keys)))
|
||
(cond ((cdr keys) (org-element--cache-key (cdr keys)))
|
||
(org-element--cache-sync-requests
|
||
(org-element--request-key (car org-element--cache-sync-requests)))))))
|
||
(org-element-put-property
|
||
element
|
||
:org-element--cache-sync-key
|
||
(cons org-element--cache-sync-keys-value new-key))))
|
||
(when (>= org-element--cache-diagnostics-level 2)
|
||
(org-element--cache-log-message
|
||
"Added new element with %S key: %S"
|
||
(org-element-property :org-element--cache-sync-key element)
|
||
(org-element--format-element element)))
|
||
(org-element-put-property element :cached t)
|
||
(when (memq (org-element-type element) '(headline inlinetask))
|
||
(cl-incf org-element--headline-cache-size)
|
||
(avl-tree-enter org-element--headline-cache element))
|
||
(cl-incf org-element--cache-size)
|
||
(avl-tree-enter org-element--cache element))))
|
||
|
||
(defsubst org-element--cache-remove (element)
|
||
"Remove ELEMENT from cache.
|
||
Assume ELEMENT belongs to cache and that a cache is active."
|
||
(org-with-base-buffer nil
|
||
(org-element-put-property element :cached nil)
|
||
(cl-decf org-element--cache-size)
|
||
;; Invalidate contents of parent.
|
||
(when (and (org-element-property :parent element)
|
||
(org-element-contents (org-element-property :parent element)))
|
||
(org-element-set-contents (org-element-property :parent element) nil))
|
||
(when (memq (org-element-type element) '(headline inlinetask))
|
||
(cl-decf org-element--headline-cache-size)
|
||
(avl-tree-delete org-element--headline-cache element))
|
||
(org-element--cache-log-message
|
||
"Decreasing cache size to %S"
|
||
org-element--cache-size)
|
||
(when (< org-element--cache-size 0)
|
||
(org-element--cache-warn
|
||
"Cache grew to negative size in %S when deleting %S at %S. Cache key: %S.
|
||
If this warning appears regularly, please report the warning text to Org mode mailing list (M-x org-submit-bug-report)."
|
||
(org-element-type element)
|
||
(current-buffer)
|
||
(org-element-property :begin element)
|
||
(org-element-property :org-element--cache-sync-key element))
|
||
(org-element-cache-reset)
|
||
(throw 'org-element--cache-quit nil))
|
||
(or (avl-tree-delete org-element--cache element)
|
||
(progn
|
||
;; This should not happen, but if it is, would be better to know
|
||
;; where it happens.
|
||
(org-element--cache-warn
|
||
"Failed to delete %S element in %S at %S. The element cache key was %S.
|
||
If this warning appears regularly, please report the warning text to Org mode mailing list (M-x org-submit-bug-report)."
|
||
(org-element-type element)
|
||
(current-buffer)
|
||
(org-element-property :begin element)
|
||
(org-element-property :org-element--cache-sync-key element))
|
||
(org-element-cache-reset)
|
||
(throw 'org-element--cache-quit nil)))))
|
||
|
||
;;;; Synchronization
|
||
|
||
(defsubst org-element--cache-set-timer (buffer)
|
||
"Set idle timer for cache synchronization in BUFFER."
|
||
(when org-element--cache-sync-timer
|
||
(cancel-timer org-element--cache-sync-timer))
|
||
(setq org-element--cache-sync-timer
|
||
(run-with-idle-timer
|
||
(let ((idle (current-idle-time)))
|
||
(if idle (time-add idle org-element-cache-sync-break)
|
||
org-element-cache-sync-idle-time))
|
||
nil
|
||
#'org-element--cache-sync
|
||
buffer)))
|
||
|
||
(defsubst org-element--cache-interrupt-p (time-limit)
|
||
"Non-nil when synchronization process should be interrupted.
|
||
TIME-LIMIT is a time value or nil."
|
||
(and time-limit
|
||
(or (input-pending-p)
|
||
(time-less-p time-limit nil))))
|
||
|
||
(defsubst org-element--cache-shift-positions (element offset &optional props)
|
||
"Shift ELEMENT properties relative to buffer positions by OFFSET.
|
||
|
||
Properties containing buffer positions are `:begin', `:end',
|
||
`:contents-begin', `:contents-end' and `:structure'. When
|
||
optional argument PROPS is a list of keywords, only shift
|
||
properties provided in that list.
|
||
|
||
Properties are modified by side-effect."
|
||
(let ((properties (nth 1 element)))
|
||
;; Shift `:structure' property for the first plain list only: it
|
||
;; is the only one that really matters and it prevents from
|
||
;; shifting it more than once.
|
||
(when (and (or (not props) (memq :structure props))
|
||
(eq (org-element-type element) 'plain-list)
|
||
(not (eq (org-element-type (plist-get properties :parent)) 'item)))
|
||
(dolist (item (plist-get properties :structure))
|
||
(cl-incf (car item) offset)
|
||
(cl-incf (nth 6 item) offset)))
|
||
(dolist (key '( :begin :contents-begin :contents-end :end
|
||
:post-affiliated :robust-begin :robust-end))
|
||
(let ((value (and (or (not props) (memq key props))
|
||
(plist-get properties key))))
|
||
(and value (plist-put properties key (+ offset value)))))))
|
||
|
||
(defvar org-element--cache-interrupt-C-g t
|
||
"When non-nil, allow the user to abort `org-element--cache-sync'.
|
||
The execution is aborted upon pressing `\\[keyboard-quit]'
|
||
`org-element--cache-interrupt-C-g-max-count' times.")
|
||
(defvar org-element--cache-interrupt-C-g-max-count 5
|
||
"`\\[keyboard-quit]' count to interrupt `org-element--cache-sync'.
|
||
See `org-element--cache-interrupt-C-g'.")
|
||
(defvar org-element--cache-interrupt-C-g-count 0
|
||
"Current number of `org-element--cache-sync' calls.
|
||
See `org-element--cache-interrupt-C-g'.")
|
||
|
||
(defvar org-element--cache-change-warning nil
|
||
"Non-nil when a sensitive line is about to be changed.
|
||
It is a symbol among nil, t, or a number representing smallest level of
|
||
modified headline. The level considers headline levels both before
|
||
and after the modification.")
|
||
|
||
(defun org-element--cache-sync (buffer &optional threshold future-change offset)
|
||
"Synchronize cache with recent modification in BUFFER.
|
||
|
||
When optional argument THRESHOLD is non-nil, do the
|
||
synchronization for all elements starting before or at threshold,
|
||
then exit. Otherwise, synchronize cache for as long as
|
||
`org-element-cache-sync-duration' or until Emacs leaves idle
|
||
state.
|
||
|
||
FUTURE-CHANGE, when non-nil, is a buffer position where changes
|
||
not registered yet in the cache are going to happen. OFFSET is the
|
||
change offset. It is used in `org-element--cache-submit-request',
|
||
where cache is partially updated before current modification are
|
||
actually submitted."
|
||
(when (buffer-live-p buffer)
|
||
(org-with-base-buffer buffer
|
||
;; Do not sync when, for example, in the middle of
|
||
;; `combine-change-calls'. See the commentary inside
|
||
;; `org-element--cache-active-p'.
|
||
(when (and org-element--cache-sync-requests (org-element--cache-active-p))
|
||
;; Check if the buffer have been changed outside visibility of
|
||
;; `org-element--cache-before-change' and `org-element--cache-after-change'.
|
||
(if (/= org-element--cache-last-buffer-size (buffer-size))
|
||
(progn
|
||
(org-element--cache-warn
|
||
"Unregistered buffer modifications detected (%S != %S). Resetting.
|
||
If this warning appears regularly, please report the warning text to Org mode mailing list (M-x org-submit-bug-report).
|
||
The buffer is: %s\n Current command: %S\n Backtrace:\n%S"
|
||
org-element--cache-last-buffer-size
|
||
(buffer-size)
|
||
(buffer-name (current-buffer))
|
||
this-command
|
||
(when (and (fboundp 'backtrace-get-frames)
|
||
(fboundp 'backtrace-to-string))
|
||
(backtrace-to-string (backtrace-get-frames 'backtrace))))
|
||
(org-element-cache-reset))
|
||
(let ((inhibit-quit t) request next)
|
||
(setq org-element--cache-interrupt-C-g-count 0)
|
||
(when org-element--cache-sync-timer
|
||
(cancel-timer org-element--cache-sync-timer))
|
||
(let ((time-limit (time-add nil org-element-cache-sync-duration)))
|
||
(catch 'org-element--cache-interrupt
|
||
(when org-element--cache-sync-requests
|
||
(org-element--cache-log-message "Syncing down to %S-%S" (or future-change threshold) threshold))
|
||
(while org-element--cache-sync-requests
|
||
(setq request (car org-element--cache-sync-requests)
|
||
next (nth 1 org-element--cache-sync-requests))
|
||
(org-element--cache-process-request
|
||
request
|
||
(when next (org-element--request-key next))
|
||
threshold
|
||
(unless threshold time-limit)
|
||
future-change
|
||
offset)
|
||
;; Re-assign current and next requests. It could have
|
||
;; been altered during phase 1.
|
||
(setq request (car org-element--cache-sync-requests)
|
||
next (nth 1 org-element--cache-sync-requests))
|
||
;; Request processed. Merge current and next offsets and
|
||
;; transfer ending position.
|
||
(when next
|
||
;; The following requests can only be either phase 1
|
||
;; or phase 2 requests. We need to let them know
|
||
;; that additional shifting happened ahead of them.
|
||
(cl-incf (org-element--request-offset next) (org-element--request-offset request))
|
||
(org-element--cache-log-message
|
||
"Updating next request offset to %S: %s"
|
||
(org-element--request-offset next)
|
||
(let ((print-length 10) (print-level 3)) (prin1-to-string next)))
|
||
;; FIXME: END part of the request only matters for
|
||
;; phase 0 requests. However, the only possible
|
||
;; phase 0 request must be the first request in the
|
||
;; list all the time. END position should be
|
||
;; unused.
|
||
(setf (org-element--request-end next) (org-element--request-end request)))
|
||
(setq org-element--cache-sync-requests
|
||
(cdr org-element--cache-sync-requests)))))
|
||
;; If more requests are awaiting, set idle timer accordingly.
|
||
;; Otherwise, reset keys.
|
||
(if org-element--cache-sync-requests
|
||
(org-element--cache-set-timer buffer)
|
||
(setq org-element--cache-change-warning nil)
|
||
(setq org-element--cache-sync-keys-value (1+ org-element--cache-sync-keys-value)))))))))
|
||
|
||
(defun org-element--cache-process-request
|
||
(request next-request-key threshold time-limit future-change offset)
|
||
"Process synchronization REQUEST for all entries before NEXT.
|
||
|
||
REQUEST is a vector, built by `org-element--cache-submit-request'.
|
||
|
||
NEXT-REQUEST-KEY is a cache key of the next request, as returned by
|
||
`org-element--cache-key'.
|
||
|
||
When non-nil, THRESHOLD is a buffer position. Synchronization
|
||
stops as soon as a shifted element begins after it.
|
||
|
||
When non-nil, TIME-LIMIT is a time value. Synchronization stops
|
||
after this time or when Emacs exits idle state.
|
||
|
||
When non-nil, FUTURE-CHANGE is a buffer position where changes not
|
||
registered yet in the cache are going to happen. OFFSET is the
|
||
changed text length. See `org-element--cache-submit-request' for more
|
||
information.
|
||
|
||
Throw `org-element--cache-interrupt' if the process stops before
|
||
completing the request."
|
||
(org-with-base-buffer nil
|
||
(org-element--cache-log-message
|
||
"org-element-cache: Processing request %s up to %S-%S, next: %S"
|
||
(let ((print-length 10) (print-level 3)) (prin1-to-string request))
|
||
future-change
|
||
threshold
|
||
next-request-key)
|
||
(catch 'org-element--cache-quit
|
||
(when (= (org-element--request-phase request) 0)
|
||
;; Phase 0.
|
||
;;
|
||
;; Delete all elements starting after beginning of the element
|
||
;; with request key NEXT, but not after buffer position END.
|
||
;;
|
||
;; At each iteration, we start again at tree root since
|
||
;; a deletion modifies structure of the balanced tree.
|
||
(org-element--cache-log-message "Phase 0")
|
||
(catch 'org-element--cache-end-phase
|
||
(let ((deletion-count 0))
|
||
(while t
|
||
(when (org-element--cache-interrupt-p time-limit)
|
||
(org-element--cache-log-message "Interrupt: time limit")
|
||
(throw 'org-element--cache-interrupt nil))
|
||
(let ((request-key (org-element--request-key request))
|
||
(end (org-element--request-end request))
|
||
(node (org-element--cache-root))
|
||
data data-key)
|
||
;; Find first element in cache with key REQUEST-KEY or
|
||
;; after it.
|
||
(while node
|
||
(let* ((element (avl-tree--node-data node))
|
||
(key (org-element--cache-key element)))
|
||
(cond
|
||
((org-element--cache-key-less-p key request-key)
|
||
(setq node (avl-tree--node-right node)))
|
||
((org-element--cache-key-less-p request-key key)
|
||
(setq data element
|
||
data-key key
|
||
node (avl-tree--node-left node)))
|
||
(t (setq data element
|
||
data-key key
|
||
node nil)))))
|
||
(if data
|
||
;; We found first element in cache starting at or
|
||
;; after REQUEST-KEY.
|
||
(let ((pos (org-element-property :begin data)))
|
||
;; FIXME: Maybe simply (< pos end)?
|
||
(if (<= pos end)
|
||
(progn
|
||
(org-element--cache-log-message "removing %S::%S"
|
||
(org-element-property :org-element--cache-sync-key data)
|
||
(org-element--format-element data))
|
||
(cl-incf deletion-count)
|
||
(org-element--cache-remove data)
|
||
(when (and (> (log org-element--cache-size 2) 10)
|
||
(> deletion-count
|
||
(/ org-element--cache-size (log org-element--cache-size 2))))
|
||
(org-element--cache-log-message "Removed %S>N/LogN(=%S/%S) elements. Resetting cache to prevent performance degradation"
|
||
deletion-count
|
||
org-element--cache-size
|
||
(log org-element--cache-size 2))
|
||
(org-element-cache-reset)
|
||
(throw 'org-element--cache-quit t)))
|
||
;; Done deleting everything starting before END.
|
||
;; DATA-KEY is the first known element after END.
|
||
;; Move on to phase 1.
|
||
(org-element--cache-log-message
|
||
"found element after %S: %S::%S"
|
||
end
|
||
(org-element-property :org-element--cache-sync-key data)
|
||
(org-element--format-element data))
|
||
(setf (org-element--request-key request) data-key)
|
||
(setf (org-element--request-beg request) pos)
|
||
(setf (org-element--request-phase request) 1)
|
||
(throw 'org-element--cache-end-phase nil)))
|
||
;; No element starting after modifications left in
|
||
;; cache: further processing is futile.
|
||
(org-element--cache-log-message
|
||
"Phase 0 deleted all elements in cache after %S!"
|
||
request-key)
|
||
(throw 'org-element--cache-quit t)))))))
|
||
(when (= (org-element--request-phase request) 1)
|
||
;; Phase 1.
|
||
;;
|
||
;; Phase 0 left a hole in the cache. Some elements after it
|
||
;; could have parents within. For example, in the following
|
||
;; buffer:
|
||
;;
|
||
;; - item
|
||
;;
|
||
;;
|
||
;; Paragraph1
|
||
;;
|
||
;; Paragraph2
|
||
;;
|
||
;; if we remove a blank line between "item" and "Paragraph1",
|
||
;; everything down to "Paragraph2" is removed from cache. But
|
||
;; the paragraph now belongs to the list, and its `:parent'
|
||
;; property no longer is accurate.
|
||
;;
|
||
;; Therefore we need to parse again elements in the hole, or at
|
||
;; least in its last section, so that we can re-parent
|
||
;; subsequent elements, during phase 2.
|
||
;;
|
||
;; Note that we only need to get the parent from the first
|
||
;; element in cache after the hole.
|
||
;;
|
||
;; When next key is lesser or equal to the current one, current
|
||
;; request is inside a to-be-shifted part of the cache. It is
|
||
;; fine because the order of elements will not be altered by
|
||
;; shifting. However, we cannot know the real position of the
|
||
;; unshifted NEXT element in the current request. So, we need
|
||
;; to sort the request list according to keys and re-start
|
||
;; processing from the new leftmost request.
|
||
(org-element--cache-log-message "Phase 1")
|
||
(let ((key (org-element--request-key request)))
|
||
(when (and next-request-key (not (org-element--cache-key-less-p key next-request-key)))
|
||
;; In theory, the only case when requests are not
|
||
;; ordered is when key of the next request is either the
|
||
;; same with current key or it is a key for a removed
|
||
;; element. Either way, we can simply merge the two
|
||
;; requests.
|
||
(let ((next-request (nth 1 org-element--cache-sync-requests)))
|
||
(org-element--cache-log-message "Phase 1: Unorderered requests. Merging: %S\n%S\n"
|
||
(let ((print-length 10) (print-level 3)) (prin1-to-string request))
|
||
(let ((print-length 10) (print-level 3)) (prin1-to-string next-request)))
|
||
(setf (org-element--request-key next-request) key)
|
||
(setf (org-element--request-beg next-request) (org-element--request-beg request))
|
||
(setf (org-element--request-phase next-request) 1)
|
||
(throw 'org-element--cache-quit t))))
|
||
;; Next element will start at its beginning position plus
|
||
;; offset, since it hasn't been shifted yet. Therefore, LIMIT
|
||
;; contains the real beginning position of the first element to
|
||
;; shift and re-parent.
|
||
(let ((limit (+ (org-element--request-beg request) (org-element--request-offset request)))
|
||
cached-before)
|
||
(cond ((and threshold (> limit threshold))
|
||
(org-element--cache-log-message "Interrupt: position %S after threshold %S" limit threshold)
|
||
(throw 'org-element--cache-interrupt nil))
|
||
((and future-change (>= limit future-change))
|
||
;; Changes happened around this element and they will
|
||
;; trigger another phase 1 request. Skip re-parenting
|
||
;; and simply proceed with shifting (phase 2) to make
|
||
;; sure that followup phase 0 request for the recent
|
||
;; changes can operate on the correctly shifted cache.
|
||
(org-element--cache-log-message "position %S after future change %S" limit future-change)
|
||
(setf (org-element--request-parent request) nil)
|
||
(setf (org-element--request-phase request) 2))
|
||
(t
|
||
(when future-change
|
||
;; Changes happened, but not yet registered after
|
||
;; this element. However, we a not yet safe to look
|
||
;; at the buffer and parse elements in the cache gap.
|
||
;; Some of the parents to be added to cache may end
|
||
;; after the changes. Parsing this parents will
|
||
;; assign the :end correct value for cache state
|
||
;; after future-change. Then, when the future change
|
||
;; is going to be processed, such parent boundary
|
||
;; will be altered unnecessarily. To avoid this,
|
||
;; we alter the new parents by -OFFSET.
|
||
;; For now, just save last known cached element and
|
||
;; then check all the parents below.
|
||
(setq cached-before (org-element--cache-find (1- limit) nil)))
|
||
;; No relevant changes happened after submitting this
|
||
;; request. We are safe to look at the actual Org
|
||
;; buffer and calculate the new parent.
|
||
(let ((parent (org-element--parse-to (1- limit) nil time-limit)))
|
||
(when future-change
|
||
;; Check all the newly added parents to not
|
||
;; intersect with future change.
|
||
(let ((up parent))
|
||
(while (and up
|
||
(or (not cached-before)
|
||
(> (org-element-property :begin up)
|
||
(org-element-property :begin cached-before))))
|
||
(when (> (org-element-property :end up) future-change)
|
||
;; Offset future cache request.
|
||
(org-element--cache-shift-positions
|
||
up (- offset)
|
||
(if (and (org-element-property :robust-begin up)
|
||
(org-element-property :robust-end up))
|
||
'(:contents-end :end :robust-end)
|
||
'(:contents-end :end))))
|
||
(setq up (org-element-property :parent up)))))
|
||
(org-element--cache-log-message
|
||
"New parent at %S: %S::%S"
|
||
limit
|
||
(org-element-property :org-element--cache-sync-key parent)
|
||
(org-element--format-element parent))
|
||
(setf (org-element--request-parent request) parent)
|
||
(setf (org-element--request-phase request) 2))))))
|
||
;; Phase 2.
|
||
;;
|
||
;; Shift all elements starting from key START, but before NEXT, by
|
||
;; OFFSET, and re-parent them when appropriate.
|
||
;;
|
||
;; Elements are modified by side-effect so the tree structure
|
||
;; remains intact.
|
||
;;
|
||
;; Once THRESHOLD, if any, is reached, or once there is an input
|
||
;; pending, exit. Before leaving, the current synchronization
|
||
;; request is updated.
|
||
(org-element--cache-log-message "Phase 2")
|
||
(let ((start (org-element--request-key request))
|
||
(offset (org-element--request-offset request))
|
||
(parent (org-element--request-parent request))
|
||
(node (org-element--cache-root))
|
||
(stack (list nil))
|
||
(leftp t)
|
||
exit-flag continue-flag)
|
||
;; No re-parenting nor shifting planned: request is over.
|
||
(when (and (not parent) (zerop offset))
|
||
(org-element--cache-log-message "Empty offset. Request completed.")
|
||
(throw 'org-element--cache-quit t))
|
||
(while node
|
||
(let* ((data (avl-tree--node-data node))
|
||
(key (org-element--cache-key data)))
|
||
;; Traverse the cache tree. Ignore all the elements before
|
||
;; START. Note that `avl-tree-stack' would not bypass the
|
||
;; elements before START and thus would have been less
|
||
;; efficient.
|
||
(if (and leftp (avl-tree--node-left node)
|
||
(not (org-element--cache-key-less-p key start)))
|
||
(progn (push node stack)
|
||
(setq node (avl-tree--node-left node)))
|
||
;; Shift and re-parent when current node starts at or
|
||
;; after START, but before NEXT.
|
||
(unless (org-element--cache-key-less-p key start)
|
||
;; We reached NEXT. Request is complete.
|
||
(when (and next-request-key
|
||
(not (org-element--cache-key-less-p key next-request-key)))
|
||
(org-element--cache-log-message "Reached next request.")
|
||
(let ((next-request (nth 1 org-element--cache-sync-requests)))
|
||
(unless (and (org-element-property :cached (org-element--request-parent next-request))
|
||
(org-element-property :begin (org-element--request-parent next-request))
|
||
parent
|
||
(> (org-element-property :begin (org-element--request-parent next-request))
|
||
(org-element-property :begin parent)))
|
||
(setf (org-element--request-parent next-request) parent)))
|
||
(throw 'org-element--cache-quit t))
|
||
;; Handle interruption request. Update current request.
|
||
(when (or exit-flag (org-element--cache-interrupt-p time-limit))
|
||
(org-element--cache-log-message "Interrupt: %s" (if exit-flag "threshold" "time limit"))
|
||
(setf (org-element--request-key request) key)
|
||
(setf (org-element--request-parent request) parent)
|
||
(throw 'org-element--cache-interrupt nil))
|
||
;; Shift element.
|
||
(unless (zerop offset)
|
||
(when (>= org-element--cache-diagnostics-level 3)
|
||
(org-element--cache-log-message "Shifting positions (𝝙%S) in %S::%S"
|
||
offset
|
||
(org-element-property :org-element--cache-sync-key data)
|
||
(org-element--format-element data)))
|
||
(org-element--cache-shift-positions data offset))
|
||
(let ((begin (org-element-property :begin data)))
|
||
;; Update PARENT and re-parent DATA, only when
|
||
;; necessary. Propagate new structures for lists.
|
||
(while (and parent
|
||
(<= (org-element-property :end parent) begin))
|
||
(setq parent (org-element-property :parent parent)))
|
||
(cond ((and (not parent) (zerop offset)) (throw 'org-element--cache-quit nil))
|
||
;; Consider scenario when DATA lays within
|
||
;; sensitive lines of PARENT that was found
|
||
;; during phase 2. For example:
|
||
;;
|
||
;; #+ begin_quote
|
||
;; Paragraph
|
||
;; #+end_quote
|
||
;;
|
||
;; In the above source block, remove space in
|
||
;; the first line will trigger re-parenting of
|
||
;; the paragraph and "#+end_quote" that is also
|
||
;; considered paragraph before the modification.
|
||
;; However, the paragraph element stored in
|
||
;; cache must be deleted instead.
|
||
((and parent
|
||
(or (not (memq (org-element-type parent) org-element-greater-elements))
|
||
(and (org-element-property :contents-begin parent)
|
||
(< (org-element-property :begin data) (org-element-property :contents-begin parent)))
|
||
(and (org-element-property :contents-end parent)
|
||
(>= (org-element-property :begin data) (org-element-property :contents-end parent)))
|
||
(> (org-element-property :end data) (org-element-property :end parent))
|
||
(and (org-element-property :contents-end data)
|
||
(> (org-element-property :contents-end data) (org-element-property :contents-end parent)))))
|
||
(org-element--cache-log-message "org-element-cache: Removing obsolete element with key %S::%S"
|
||
(org-element-property :org-element--cache-sync-key data)
|
||
(org-element--format-element data))
|
||
(org-element--cache-remove data)
|
||
;; We altered the tree structure. The tree
|
||
;; traversal needs to be restarted.
|
||
(setf (org-element--request-key request) key)
|
||
;; Make sure that we restart tree traversal
|
||
;; past already shifted elements (before the
|
||
;; removed DATA).
|
||
(setq start key)
|
||
(setf (org-element--request-parent request) parent)
|
||
;; Restart tree traversal.
|
||
(setq node (org-element--cache-root)
|
||
stack (list nil)
|
||
leftp t
|
||
begin -1
|
||
continue-flag t))
|
||
((and parent
|
||
(not (eq parent data))
|
||
(let ((p (org-element-property :parent data)))
|
||
(or (not p)
|
||
(< (org-element-property :begin p)
|
||
(org-element-property :begin parent))
|
||
(unless (eq p parent)
|
||
(not (org-element-property :cached p))
|
||
;; (not (avl-tree-member-p org-element--cache p))
|
||
))))
|
||
(org-element--cache-log-message
|
||
"Updating parent in %S\n Old parent: %S\n New parent: %S"
|
||
(org-element--format-element data)
|
||
(org-element--format-element (org-element-property :parent data))
|
||
(org-element--format-element parent))
|
||
(when (and (eq 'org-data (org-element-type parent))
|
||
(not (eq 'headline (org-element-type data))))
|
||
;; FIXME: This check is here to see whether
|
||
;; such error happens within
|
||
;; `org-element--cache-process-request' or somewhere
|
||
;; else.
|
||
(org-element--cache-warn
|
||
"Added org-data parent to non-headline element: %S
|
||
If this warning appears regularly, please report the warning text to Org mode mailing list (M-x org-submit-bug-report)."
|
||
data)
|
||
(org-element-cache-reset)
|
||
(throw 'org-element--cache-quit t))
|
||
(org-element-put-property data :parent parent)
|
||
(let ((s (org-element-property :structure parent)))
|
||
(when (and s (org-element-property :structure data))
|
||
(org-element-put-property data :structure s)))))
|
||
;; Cache is up-to-date past THRESHOLD. Request
|
||
;; interruption.
|
||
(when (and threshold (> begin threshold))
|
||
(org-element--cache-log-message "Reached threshold %S: %S"
|
||
threshold
|
||
(org-element--format-element data))
|
||
(setq exit-flag t))))
|
||
(if continue-flag
|
||
(setq continue-flag nil)
|
||
(setq node (if (setq leftp (avl-tree--node-right node))
|
||
(avl-tree--node-right node)
|
||
(pop stack)))))))
|
||
;; We reached end of tree: synchronization complete.
|
||
t))
|
||
(org-element--cache-log-message
|
||
"org-element-cache: Finished process. The cache size is %S. The remaining sync requests: %S"
|
||
org-element--cache-size
|
||
(let ((print-level 2)) (prin1-to-string org-element--cache-sync-requests)))))
|
||
|
||
(defsubst org-element--open-end-p (element)
|
||
"Check if ELEMENT in current buffer contains extra blank lines after
|
||
it and does not have closing term.
|
||
|
||
Examples of such elements are: section, headline, org-data,
|
||
and footnote-definition."
|
||
(and (org-element-property :contents-end element)
|
||
(= (org-element-property :contents-end element)
|
||
(save-excursion
|
||
(goto-char (org-element-property :end element))
|
||
(skip-chars-backward " \r\n\t")
|
||
(line-beginning-position 2)))))
|
||
|
||
(defun org-element--parse-to (pos &optional syncp time-limit)
|
||
"Parse elements in current section, down to POS.
|
||
|
||
Start parsing from the closest between the last known element in
|
||
cache or headline above. Return the smallest element containing
|
||
POS.
|
||
|
||
When optional argument SYNCP is non-nil, return the parent of the
|
||
element containing POS instead. In that case, it is also
|
||
possible to provide TIME-LIMIT, which is a time value specifying
|
||
when the parsing should stop. The function throws
|
||
`org-element--cache-interrupt' if the process stopped before finding
|
||
the expected result."
|
||
(catch 'exit
|
||
(save-match-data
|
||
(org-with-base-buffer nil
|
||
(org-with-wide-buffer
|
||
(goto-char pos)
|
||
(save-excursion
|
||
(end-of-line)
|
||
(skip-chars-backward " \r\t\n")
|
||
;; Within blank lines at the beginning of buffer, return nil.
|
||
(when (bobp) (throw 'exit nil)))
|
||
(let* ((cached (and (org-element--cache-active-p)
|
||
(org-element--cache-find pos nil)))
|
||
(mode (org-element-property :mode cached))
|
||
element next)
|
||
(cond
|
||
;; Nothing in cache before point: start parsing from first
|
||
;; element in buffer down to POS or from the beginning of the
|
||
;; file.
|
||
((and (not cached) (org-element--cache-active-p))
|
||
(setq element (org-element-org-data-parser))
|
||
(unless (org-element-property :begin element)
|
||
(org-element--cache-warn "Error parsing org-data. Got %S\nPlease report to Org mode mailing list (M-x org-submit-bug-report)." element))
|
||
(org-element--cache-log-message
|
||
"Nothing in cache. Adding org-data: %S"
|
||
(org-element--format-element element))
|
||
(org-element--cache-put element)
|
||
(goto-char (org-element-property :contents-begin element))
|
||
(setq mode 'org-data))
|
||
;; Nothing in cache before point because cache is not active.
|
||
;; Parse from previous heading to avoid re-parsing the whole
|
||
;; buffer above. This comes at the cost of not calculating
|
||
;; `:parent' property for headings.
|
||
((not cached)
|
||
(if (org-with-limited-levels (outline-previous-heading))
|
||
(progn
|
||
(setq element (org-element-headline-parser nil 'fast))
|
||
(setq mode 'planning)
|
||
(forward-line))
|
||
(setq element (org-element-org-data-parser))
|
||
(setq mode 'org-data))
|
||
(org-skip-whitespace)
|
||
(beginning-of-line))
|
||
;; Check if CACHED or any of its ancestors contain point.
|
||
;;
|
||
;; If there is such an element, we inspect it in order to know
|
||
;; if we return it or if we need to parse its contents.
|
||
;; Otherwise, we just start parsing from location, which is
|
||
;; right after the top-most element containing CACHED but
|
||
;; still before POS.
|
||
;;
|
||
;; As a special case, if POS is at the end of the buffer, we
|
||
;; want to return the innermost element ending there.
|
||
;;
|
||
;; Also, if we find an ancestor and discover that we need to
|
||
;; parse its contents, make sure we don't start from
|
||
;; `:contents-begin', as we would otherwise go past CACHED
|
||
;; again. Instead, in that situation, we will resume parsing
|
||
;; from NEXT, which is located after CACHED or its higher
|
||
;; ancestor not containing point.
|
||
(t
|
||
(let ((up cached)
|
||
(pos (if (= (point-max) pos) (1- pos) pos)))
|
||
(while (and up (<= (org-element-property :end up) pos))
|
||
(goto-char (org-element-property :end up))
|
||
(setq element up
|
||
mode (org-element--next-mode (org-element-property :mode element) (org-element-type element) nil)
|
||
up (org-element-property :parent up)
|
||
next (point)))
|
||
(when up (setq element up)))))
|
||
;; Parse successively each element until we reach POS.
|
||
(let ((end (or (org-element-property :end element) (point-max)))
|
||
(parent (org-element-property :parent element)))
|
||
(while t
|
||
(when (org-element--cache-interrupt-p time-limit)
|
||
(throw 'org-element--cache-interrupt nil))
|
||
(when (and inhibit-quit org-element--cache-interrupt-C-g quit-flag)
|
||
(when quit-flag
|
||
(cl-incf org-element--cache-interrupt-C-g-count)
|
||
(setq quit-flag nil))
|
||
(when (>= org-element--cache-interrupt-C-g-count
|
||
org-element--cache-interrupt-C-g-max-count)
|
||
(setq quit-flag t)
|
||
(setq org-element--cache-interrupt-C-g-count 0)
|
||
(org-element-cache-reset)
|
||
(error "org-element: Parsing aborted by user. Cache has been cleared.
|
||
If you observe Emacs hangs frequently, please report this to Org mode mailing list (M-x org-submit-bug-report)."))
|
||
(message (substitute-command-keys
|
||
"`org-element--parse-buffer': Suppressed `\\[keyboard-quit]'. Press `\\[keyboard-quit]' %d more times to force interruption.")
|
||
(- org-element--cache-interrupt-C-g-max-count
|
||
org-element--cache-interrupt-C-g-count)))
|
||
(unless element
|
||
;; Do not try to parse within blank at EOB.
|
||
(unless (save-excursion
|
||
(org-skip-whitespace)
|
||
(eobp))
|
||
(org-element-with-disabled-cache
|
||
(setq element (org-element--current-element
|
||
end 'element mode
|
||
(org-element-property :structure parent)))))
|
||
;; Make sure that we return referenced element in cache
|
||
;; that can be altered directly.
|
||
(if element
|
||
(progn
|
||
(org-element-put-property element :granularity 'element)
|
||
(setq element (or (org-element--cache-put element) element)))
|
||
;; Nothing to parse (i.e. empty file).
|
||
(throw 'exit parent))
|
||
(unless (or (not (org-element--cache-active-p)) parent)
|
||
(org-element--cache-warn
|
||
"Got empty parent while parsing. Please report it to Org mode mailing list (M-x org-submit-bug-report).\n Backtrace:\n%S"
|
||
(when (and (fboundp 'backtrace-get-frames)
|
||
(fboundp 'backtrace-to-string))
|
||
(backtrace-to-string (backtrace-get-frames 'backtrace))
|
||
(org-element-cache-reset)
|
||
(error "org-element--cache: Emergency exit"))))
|
||
(org-element-put-property element :parent parent))
|
||
(let ((elem-end (org-element-property :end element))
|
||
(type (org-element-type element)))
|
||
(cond
|
||
;; Skip any element ending before point. Also skip
|
||
;; element ending at point (unless it is also the end of
|
||
;; buffer) since we're sure that another element begins
|
||
;; after it.
|
||
((and (<= elem-end pos) (/= (point-max) elem-end))
|
||
;; Avoid parsing headline siblings above.
|
||
(goto-char elem-end)
|
||
(when (eq type 'headline)
|
||
(save-match-data
|
||
(unless (when (and (/= 1 (org-element-property :level element))
|
||
(re-search-forward
|
||
(rx-to-string
|
||
`(and bol (repeat 1 ,(1- (let ((level (org-element-property :level element)))
|
||
(if org-odd-levels-only (1- (* level 2)) level)))
|
||
"*")
|
||
" "))
|
||
pos t))
|
||
(beginning-of-line)
|
||
t)
|
||
;; There are headings with lower level than
|
||
;; ELEMENT between ELEM-END and POS. Siblings
|
||
;; may exist though. Parse starting from the
|
||
;; last sibling or from ELEM-END if there are
|
||
;; no other siblings.
|
||
(goto-char pos)
|
||
(unless
|
||
(re-search-backward
|
||
(rx-to-string
|
||
`(and bol (repeat ,(let ((level (org-element-property :level element)))
|
||
(if org-odd-levels-only (1- (* level 2)) level))
|
||
"*")
|
||
" "))
|
||
elem-end t)
|
||
;; Roll-back to normal parsing.
|
||
(goto-char elem-end)))))
|
||
(setq mode (org-element--next-mode mode type nil)))
|
||
;; A non-greater element contains point: return it.
|
||
((not (memq type org-element-greater-elements))
|
||
(throw 'exit (if syncp parent element)))
|
||
;; Otherwise, we have to decide if ELEMENT really
|
||
;; contains POS. In that case we start parsing from
|
||
;; contents' beginning.
|
||
;;
|
||
;; If POS is at contents' beginning but it is also at
|
||
;; the beginning of the first item in a list or a table.
|
||
;; In that case, we need to create an anchor for that
|
||
;; list or table, so return it.
|
||
;;
|
||
;; Also, if POS is at the end of the buffer, no element
|
||
;; can start after it, but more than one may end there.
|
||
;; Arbitrarily, we choose to return the innermost of
|
||
;; such elements.
|
||
((let ((cbeg (org-element-property :contents-begin element))
|
||
(cend (org-element-property :contents-end element)))
|
||
(when (and cbeg cend
|
||
(or (< cbeg pos)
|
||
(and (= cbeg pos)
|
||
(not (memq type '(plain-list table)))))
|
||
(or (> cend pos)
|
||
;; When we are at cend or within blank
|
||
;; lines after, it is a special case:
|
||
;; 1. At the end of buffer we return
|
||
;; the innermost element.
|
||
;; 2. At cend of element with return
|
||
;; that element.
|
||
;; 3. At the end of element, we would
|
||
;; return in the earlier cond form.
|
||
;; 4. Within blank lines after cend,
|
||
;; when element does not have a
|
||
;; closing keyword, we return that
|
||
;; outermost element, unless the
|
||
;; outermost element is a non-empty
|
||
;; headline. In the latter case, we
|
||
;; return the outermost element inside
|
||
;; the headline section.
|
||
(and (org-element--open-end-p element)
|
||
(or (= (org-element-property :end element) (point-max))
|
||
(and (>= pos (org-element-property :contents-end element))
|
||
(memq (org-element-type element) '(org-data section headline)))))))
|
||
(goto-char (or next cbeg))
|
||
(setq mode (if next mode (org-element--next-mode mode type t))
|
||
next nil
|
||
parent element
|
||
end (if (org-element--open-end-p element)
|
||
(org-element-property :end element)
|
||
(org-element-property :contents-end element))))))
|
||
;; Otherwise, return ELEMENT as it is the smallest
|
||
;; element containing POS.
|
||
(t (throw 'exit (if syncp parent element)))))
|
||
(setq element nil)))))))))
|
||
|
||
;;;; Staging Buffer Changes
|
||
|
||
(defconst org-element--cache-sensitive-re
|
||
(concat
|
||
"^\\*+ " "\\|"
|
||
"\\\\end{[A-Za-z0-9*]+}[ \t]*$" "\\|"
|
||
"^[ \t]*\\(?:"
|
||
"#\\+END\\(?:_\\|:?[ \t]*$\\)" "\\|"
|
||
org-list-full-item-re "\\|"
|
||
":\\(?: \\|$\\)" "\\|"
|
||
":\\(?:\\w\\|[-_]\\)+:[ \t]*$"
|
||
"\\)")
|
||
"Regexp matching a sensitive line, structure wise.
|
||
A sensitive line is a headline, inlinetask, block, drawer, or
|
||
latex-environment boundary. When such a line is modified,
|
||
structure changes in the document may propagate in the whole
|
||
section, possibly making cache invalid.")
|
||
|
||
(defun org-element--cache-before-change (beg end)
|
||
"Detect modifications in sensitive parts of Org buffer.
|
||
BEG and END are the beginning and end of the range of changed
|
||
text. See `before-change-functions' for more information.
|
||
|
||
The function returns the new value of `org-element--cache-change-warning'."
|
||
(org-with-base-buffer nil
|
||
(when (org-element--cache-active-p t)
|
||
(org-with-wide-buffer
|
||
(setq org-element--cache-change-tic (buffer-chars-modified-tick))
|
||
(setq org-element--cache-last-buffer-size (buffer-size))
|
||
(goto-char beg)
|
||
(forward-line 0)
|
||
(let ((bottom (save-excursion (goto-char end) (line-end-position))))
|
||
(prog1
|
||
;; Use the worst change warning to not miss important edits.
|
||
;; This function is called before edit and after edit by
|
||
;; `org-element--cache-after-change'. Before the edit, we still
|
||
;; want to use the old value if it comes from previous
|
||
;; not yet processed edit (they may be merged by
|
||
;; `org-element--cache-submit-request'). After the edit, we want to
|
||
;; look if there was a sensitive removed during edit.
|
||
;; FIXME: This is not the most efficient way and we now
|
||
;; have to delete more elements than needed in some
|
||
;; cases. A better approach may be storing the warning
|
||
;; in the modification request itself.
|
||
(let ((org-element--cache-change-warning-before org-element--cache-change-warning)
|
||
(org-element--cache-change-warning-after))
|
||
(setq org-element--cache-change-warning-after
|
||
(save-match-data
|
||
(let ((case-fold-search t))
|
||
(when (re-search-forward
|
||
org-element--cache-sensitive-re bottom t)
|
||
(goto-char beg)
|
||
(beginning-of-line)
|
||
(let (min-level)
|
||
(cl-loop while (re-search-forward
|
||
(rx-to-string
|
||
(if (and min-level
|
||
(> min-level 1))
|
||
`(and bol (repeat 1 ,(1- min-level) "*") " ")
|
||
`(and bol (+ "*") " ")))
|
||
bottom t)
|
||
do (setq min-level (1- (length (match-string 0))))
|
||
until (= min-level 1))
|
||
(goto-char beg)
|
||
(beginning-of-line)
|
||
(or (and min-level (org-reduced-level min-level))
|
||
(when (looking-at-p "^[ \t]*#\\+CATEGORY:")
|
||
'org-data)
|
||
t))))))
|
||
(setq org-element--cache-change-warning
|
||
(cond
|
||
((and (numberp org-element--cache-change-warning-before)
|
||
(numberp org-element--cache-change-warning-after))
|
||
(min org-element--cache-change-warning-after
|
||
org-element--cache-change-warning-before))
|
||
((numberp org-element--cache-change-warning-before)
|
||
org-element--cache-change-warning-before)
|
||
((numberp org-element--cache-change-warning-after)
|
||
org-element--cache-change-warning-after)
|
||
(t (or org-element--cache-change-warning-after
|
||
org-element--cache-change-warning-before)))))
|
||
(org-element--cache-log-message
|
||
"%S is about to modify text: warning %S"
|
||
this-command
|
||
org-element--cache-change-warning)))))))
|
||
|
||
(defun org-element--cache-after-change (beg end pre)
|
||
"Update buffer modifications for current buffer.
|
||
BEG and END are the beginning and end of the range of changed
|
||
text, and the length in bytes of the pre-change text replaced by
|
||
that range. See `after-change-functions' for more information."
|
||
(org-with-base-buffer nil
|
||
(when (org-element--cache-active-p t)
|
||
(when (not (eq org-element--cache-change-tic (buffer-chars-modified-tick)))
|
||
(org-element--cache-log-message "After change")
|
||
(setq org-element--cache-change-warning (org-element--cache-before-change beg end))
|
||
;; If beg is right after spaces in front of an element, we
|
||
;; risk affecting previous element, so move beg to bol, making
|
||
;; sure that we capture preceding element.
|
||
(setq beg (save-excursion
|
||
(goto-char beg)
|
||
(cl-incf pre (- beg (line-beginning-position)))
|
||
(line-beginning-position)))
|
||
;; Store synchronization request.
|
||
(let ((offset (- end beg pre)))
|
||
(save-match-data
|
||
(org-element--cache-submit-request beg (- end offset) offset)))
|
||
;; Activate a timer to process the request during idle time.
|
||
(org-element--cache-set-timer (current-buffer))))))
|
||
|
||
(defun org-element--cache-setup-change-functions ()
|
||
"Setup `before-change-functions' and `after-change-functions'."
|
||
(when (and (derived-mode-p 'org-mode) org-element-use-cache)
|
||
(add-hook 'before-change-functions
|
||
#'org-element--cache-before-change nil t)
|
||
;; Run `org-element--cache-after-change' early to handle cases
|
||
;; when other `after-change-functions' require element cache.
|
||
(add-hook 'after-change-functions
|
||
#'org-element--cache-after-change -1 t)))
|
||
|
||
(defvar org-element--cache-avoid-synchronous-headline-re-parsing nil
|
||
"This variable controls how buffer changes are handled by the cache.
|
||
|
||
By default (when this variable is nil), cache re-parses modified
|
||
headlines immediately after modification preserving all the unaffected
|
||
elements inside the headline.
|
||
|
||
The default behavior works best when users types inside Org buffer of
|
||
when buffer modifications are mixed with cache requests. However,
|
||
large automated edits inserting/deleting many headlines are somewhat
|
||
slower by default (as in `org-archive-subtree'). Let-binding this
|
||
variable to non-nil will reduce cache latency after every singular edit
|
||
(`after-change-functions') at the cost of slower cache queries.")
|
||
(defun org-element--cache-for-removal (beg end offset)
|
||
"Return first element to remove from cache.
|
||
|
||
BEG and END are buffer positions delimiting buffer modifications.
|
||
OFFSET is the size of the changes.
|
||
|
||
Returned element is usually the first element in cache containing
|
||
any position between BEG and END. As an exception, greater
|
||
elements around the changes that are robust to contents
|
||
modifications are preserved and updated according to the
|
||
changes. In the latter case, the returned element is the outermost
|
||
non-robust element affected by the changes. Note that the returned
|
||
element may end before END position in which case some cached element
|
||
starting after the returned may still be affected by the changes.
|
||
|
||
Also, when there are no elements in cache before BEG, return first
|
||
known element in cache (it may start after END)."
|
||
(let* ((elements (org-element--cache-find (1- beg) 'both))
|
||
(before (car elements))
|
||
(after (cdr elements)))
|
||
(if (not before) after
|
||
;; If BEFORE is a keyword, it may need to be removed to become
|
||
;; an affiliated keyword.
|
||
(when (eq 'keyword (org-element-type before))
|
||
(let ((prev before))
|
||
(while (eq 'keyword (org-element-type prev))
|
||
(setq before prev
|
||
beg (org-element-property :begin prev))
|
||
(setq prev (org-element--cache-find (1- (org-element-property :begin before)))))))
|
||
(let ((up before)
|
||
(robust-flag t))
|
||
(while up
|
||
(if (let ((type (org-element-type up)))
|
||
(or (and (memq type '( center-block dynamic-block
|
||
quote-block special-block
|
||
drawer))
|
||
(or (not (eq type 'drawer))
|
||
(not (string= "PROPERTIES" (org-element-property :drawer-name up))))
|
||
;; Sensitive change. This is
|
||
;; unconditionally non-robust change.
|
||
(not org-element--cache-change-warning)
|
||
(let ((cbeg (org-element-property :contents-begin up))
|
||
(cend (org-element-property :contents-end up)))
|
||
(and cbeg
|
||
(<= cbeg beg)
|
||
(or (> cend end)
|
||
(and (= cend end)
|
||
(= (+ end offset) (point-max)))))))
|
||
(and (memq type '(headline section org-data))
|
||
(let ((rbeg (org-element-property :robust-begin up))
|
||
(rend (org-element-property :robust-end up)))
|
||
(and rbeg rend
|
||
(<= rbeg beg)
|
||
(or (> rend end)
|
||
(and (= rend end)
|
||
(= (+ end offset) (point-max))))))
|
||
(pcase type
|
||
;; Sensitive change in section. Need to
|
||
;; re-parse.
|
||
(`section (not org-element--cache-change-warning))
|
||
;; Headline might be inserted. This is non-robust
|
||
;; change when `up' is a `headline' or `section'
|
||
;; with `>' level compared to the inserted headline.
|
||
;;
|
||
;; Also, planning info/property drawer
|
||
;; could have been inserted. It is not
|
||
;; robust change then.
|
||
(`headline
|
||
(and
|
||
(or (not (numberp org-element--cache-change-warning))
|
||
(> org-element--cache-change-warning
|
||
(org-element-property :level up)))
|
||
(org-with-point-at (org-element-property :contents-begin up)
|
||
(unless
|
||
(save-match-data
|
||
(when (looking-at-p org-element-planning-line-re)
|
||
(forward-line))
|
||
(when (looking-at org-property-drawer-re)
|
||
(< beg (match-end 0))))
|
||
'robust))))
|
||
(`org-data (and (not (eq org-element--cache-change-warning 'org-data))
|
||
;; Property drawer could
|
||
;; have been inserted. It
|
||
;; is not robust change
|
||
;; then.
|
||
(org-with-wide-buffer
|
||
(goto-char (point-min))
|
||
(while (and (org-at-comment-p) (bolp)) (forward-line))
|
||
;; Should not see property
|
||
;; drawer within changed
|
||
;; region.
|
||
(save-match-data
|
||
(or (not (looking-at org-property-drawer-re))
|
||
(> beg (match-end 0)))))))
|
||
(_ 'robust)))))
|
||
;; UP is a robust greater element containing changes.
|
||
;; We only need to extend its ending boundaries.
|
||
(progn
|
||
(org-element--cache-shift-positions
|
||
up offset
|
||
(if (and (org-element-property :robust-begin up)
|
||
(org-element-property :robust-end up))
|
||
'(:contents-end :end :robust-end)
|
||
'(:contents-end :end)))
|
||
(org-element--cache-log-message
|
||
"Shifting end positions of robust parent: %S"
|
||
(org-element--format-element up)))
|
||
(unless (or
|
||
;; UP is non-robust. Yet, if UP is headline, flagging
|
||
;; everything inside for removal may be to
|
||
;; costly. Instead, we should better re-parse only the
|
||
;; headline itself when possible. If a headline is still
|
||
;; starting from old :begin position, we do not care that
|
||
;; its boundaries could have extended to shrunk - we
|
||
;; will re-parent and shift them anyway.
|
||
(and (eq 'headline (org-element-type up))
|
||
(not org-element--cache-avoid-synchronous-headline-re-parsing)
|
||
;; The change is not inside headline. Not
|
||
;; updating here.
|
||
(not (<= beg (org-element-property :begin up)))
|
||
(not (> end (org-element-property :end up)))
|
||
(let ((current (org-with-point-at (org-element-property :begin up)
|
||
(org-element-with-disabled-cache
|
||
(and (looking-at-p org-element-headline-re)
|
||
(org-element-headline-parser nil 'fast))))))
|
||
(when (eq 'headline (org-element-type current))
|
||
(org-element--cache-log-message
|
||
"Found non-robust headline that can be updated individually: %S"
|
||
(org-element--format-element current))
|
||
(org-element-set-element up current)
|
||
(org-element-put-property up :granularity 'element)
|
||
t)))
|
||
;; If UP is org-data, the situation is similar to
|
||
;; headline case. We just need to re-parse the
|
||
;; org-data itself, unless the change is made
|
||
;; within blank lines at BOB (that could
|
||
;; potentially alter first-section).
|
||
(when (and (eq 'org-data (org-element-type up))
|
||
(>= beg (org-element-property :contents-begin up)))
|
||
(org-element-set-element up (org-with-point-at 1 (org-element-org-data-parser)))
|
||
(org-element--cache-log-message
|
||
"Found non-robust change invalidating org-data. Re-parsing: %S"
|
||
(org-element--format-element up))
|
||
t))
|
||
(org-element--cache-log-message
|
||
"Found non-robust element: %S"
|
||
(org-element--format-element up))
|
||
(setq before up)
|
||
(when robust-flag (setq robust-flag nil))))
|
||
(unless (or (org-element-property :parent up)
|
||
(eq 'org-data (org-element-type up)))
|
||
(org-element--cache-warn "Got element without parent. Please report it to Org mode mailing list (M-x org-submit-bug-report).\n%S" up)
|
||
(org-element-cache-reset)
|
||
(error "org-element--cache: Emergency exit"))
|
||
(setq up (org-element-property :parent up)))
|
||
;; We're at top level element containing ELEMENT: if it's
|
||
;; altered by buffer modifications, it is first element in
|
||
;; cache to be removed. Otherwise, that first element is the
|
||
;; following one.
|
||
;;
|
||
;; As a special case, do not remove BEFORE if it is a robust
|
||
;; container for current changes.
|
||
(if (or (< (org-element-property :end before) beg) robust-flag) after
|
||
before)))))
|
||
|
||
(defun org-element--cache-submit-request (beg end offset)
|
||
"Submit a new cache synchronization request for current buffer.
|
||
BEG and END are buffer positions delimiting the minimal area
|
||
where cache data should be removed. OFFSET is the size of the
|
||
change, as an integer."
|
||
(org-element--cache-log-message
|
||
"Submitting new synchronization request for [%S..%S]𝝙%S"
|
||
beg end offset)
|
||
(org-with-base-buffer nil
|
||
(let ((next (car org-element--cache-sync-requests))
|
||
delete-to delete-from)
|
||
(if (and next
|
||
;; First existing sync request is in phase 0.
|
||
(= 0 (org-element--request-phase next))
|
||
;; Current changes intersect with the first sync request.
|
||
(> (setq delete-to (+ (org-element--request-end next)
|
||
(org-element--request-offset next)))
|
||
end)
|
||
(<= (setq delete-from (org-element--request-beg next))
|
||
end))
|
||
;; Current changes can be merged with first sync request: we
|
||
;; can save a partial cache synchronization.
|
||
(progn
|
||
(org-element--cache-log-message "Found another phase 0 request intersecting with current")
|
||
;; Update OFFSET of the existing request.
|
||
(cl-incf (org-element--request-offset next) offset)
|
||
;; If last change happened within area to be removed, extend
|
||
;; boundaries of robust parents, if any. Otherwise, find
|
||
;; first element to remove and update request accordingly.
|
||
(if (> beg delete-from)
|
||
;; The current modification is completely inside NEXT.
|
||
;; We already added the current OFFSET to the NEXT
|
||
;; request. However, the robust elements around
|
||
;; modifications also need to be shifted. Moreover, the
|
||
;; new modification may also have non-nil
|
||
;; `org-element--cache-change-warning'. In the latter case, we
|
||
;; also need to update the request.
|
||
(let ((first (org-element--cache-for-removal delete-from end offset) ; Shift as needed.
|
||
))
|
||
(org-element--cache-log-message
|
||
"Current request is inside next. Candidate parent: %S"
|
||
(org-element--format-element first))
|
||
(when
|
||
;; Non-robust element is now before NEXT. Need to
|
||
;; update.
|
||
(and first
|
||
(org-element--cache-key-less-p
|
||
(org-element--cache-key first)
|
||
(org-element--request-key next)))
|
||
(org-element--cache-log-message
|
||
"Current request is inside next. New parent: %S"
|
||
(org-element--format-element first))
|
||
(setf (org-element--request-key next)
|
||
(org-element--cache-key first))
|
||
(setf (org-element--request-beg next)
|
||
(org-element-property :begin first))
|
||
(setf (org-element--request-end next)
|
||
(max (org-element-property :end first)
|
||
(org-element--request-end next)))
|
||
(setf (org-element--request-parent next)
|
||
(org-element-property :parent first))))
|
||
;; The current and NEXT modifications are intersecting
|
||
;; with current modification starting before NEXT and NEXT
|
||
;; ending after current. We need to update the common
|
||
;; non-robust parent for the new extended modification
|
||
;; region.
|
||
(let ((first (org-element--cache-for-removal beg delete-to offset)))
|
||
(org-element--cache-log-message
|
||
"Current request intersects with next. Candidate parent: %S"
|
||
(org-element--format-element first))
|
||
(when (and first
|
||
(org-element--cache-key-less-p
|
||
(org-element--cache-key first)
|
||
(org-element--request-key next)))
|
||
(org-element--cache-log-message
|
||
"Current request intersects with next. Updating. New parent: %S"
|
||
(org-element--format-element first))
|
||
(setf (org-element--request-key next) (org-element--cache-key first))
|
||
(setf (org-element--request-beg next) (org-element-property :begin first))
|
||
(setf (org-element--request-end next)
|
||
(max (org-element-property :end first)
|
||
(org-element--request-end next)))
|
||
(setf (org-element--request-parent next) (org-element-property :parent first))))))
|
||
;; Ensure cache is correct up to END. Also make sure that NEXT,
|
||
;; if any, is no longer a 0-phase request, thus ensuring that
|
||
;; phases are properly ordered. We need to provide OFFSET as
|
||
;; optional parameter since current modifications are not known
|
||
;; yet to the otherwise correct part of the cache (i.e, before
|
||
;; the first request).
|
||
(org-element--cache-log-message "Adding new phase 0 request")
|
||
(when next (org-element--cache-sync (current-buffer) end beg offset))
|
||
(let ((first (org-element--cache-for-removal beg end offset)))
|
||
(if first
|
||
(push (let ((first-beg (org-element-property :begin first))
|
||
(key (org-element--cache-key first)))
|
||
(cond
|
||
;; When changes happen before the first known
|
||
;; element, re-parent and shift the rest of the
|
||
;; cache.
|
||
((> first-beg end)
|
||
(org-element--cache-log-message "Changes are before first known element. Submitting phase 1 request")
|
||
(vector key first-beg nil offset nil 1))
|
||
;; Otherwise, we find the first non robust
|
||
;; element containing END. All elements between
|
||
;; FIRST and this one are to be removed.
|
||
;;
|
||
;; The current modification is completely inside
|
||
;; FIRST. Clear and update cached elements in
|
||
;; region containing FIRST.
|
||
((let ((first-end (org-element-property :end first)))
|
||
(when (> first-end end)
|
||
(org-element--cache-log-message "Extending to non-robust element %S" (org-element--format-element first))
|
||
(vector key first-beg first-end offset (org-element-property :parent first) 0))))
|
||
(t
|
||
;; Now, FIRST is the first element after BEG or
|
||
;; non-robust element containing BEG. However,
|
||
;; FIRST ends before END and there might be
|
||
;; another ELEMENT before END that spans beyond
|
||
;; END. If there is such element, we need to
|
||
;; extend the region down to end of the common
|
||
;; parent of FIRST and everything inside
|
||
;; BEG..END.
|
||
(let* ((element (org-element--cache-find end))
|
||
(element-end (org-element-property :end element))
|
||
(up element))
|
||
(while (and (not (eq up first))
|
||
(setq up (org-element-property :parent up))
|
||
(>= (org-element-property :begin up) first-beg))
|
||
;; Note that UP might have been already
|
||
;; shifted if it is a robust element. After
|
||
;; deletion, it can put it's end before yet
|
||
;; unprocessed ELEMENT.
|
||
(setq element-end (max (org-element-property :end up) element-end)
|
||
element up))
|
||
;; Extend region to remove elements between
|
||
;; beginning of first and the end of outermost
|
||
;; element starting before END but after
|
||
;; beginning of first.
|
||
;; of the FIRST.
|
||
(org-element--cache-log-message
|
||
"Extending to all elements between:\n 1: %S\n 2: %S"
|
||
(org-element--format-element first)
|
||
(org-element--format-element element))
|
||
(vector key first-beg element-end offset up 0)))))
|
||
org-element--cache-sync-requests)
|
||
;; No element to remove. No need to re-parent either.
|
||
;; Simply shift additional elements, if any, by OFFSET.
|
||
(if org-element--cache-sync-requests
|
||
(progn
|
||
(org-element--cache-log-message
|
||
"Nothing to remove. Updating offset of the next request by 𝝙%S: %S"
|
||
offset
|
||
(let ((print-level 3))
|
||
(car org-element--cache-sync-requests)))
|
||
(cl-incf (org-element--request-offset (car org-element--cache-sync-requests))
|
||
offset))
|
||
(org-element--cache-log-message
|
||
"Nothing to remove. No elements in cache after %S. Terminating."
|
||
end))))))
|
||
(setq org-element--cache-change-warning nil)))
|
||
|
||
(defun org-element--cache-verify-element (element)
|
||
"Verify correctness of ELEMENT when `org-element--cache-self-verify' is non-nil.
|
||
|
||
Return non-nil when verification failed."
|
||
(let ((org-element--cache-self-verify
|
||
(or org-element--cache-self-verify
|
||
(and (boundp 'org-batch-test) org-batch-test)))
|
||
(org-element--cache-self-verify-frequency
|
||
(if (and (boundp 'org-batch-test) org-batch-test)
|
||
1
|
||
org-element--cache-self-verify-frequency)))
|
||
;; Verify correct parent for the element.
|
||
(unless (or (not org-element--cache-self-verify)
|
||
(org-element-property :parent element)
|
||
(eq 'org-data (org-element-type element)))
|
||
(org-element--cache-warn "Got element without parent (cache active?: %S). Please report it to Org mode mailing list (M-x org-submit-bug-report).\n%S" (org-element--cache-active-p) element)
|
||
(org-element-cache-reset))
|
||
(when (and org-element--cache-self-verify
|
||
(org-element--cache-active-p)
|
||
(eq 'headline (org-element-type element))
|
||
;; Avoid too much slowdown
|
||
(< (random 1000) (* 1000 org-element--cache-self-verify-frequency)))
|
||
(org-with-point-at (org-element-property :begin element)
|
||
(org-element-with-disabled-cache (org-up-heading-or-point-min))
|
||
(unless (or (= (point) (org-element-property :begin (org-element-property :parent element)))
|
||
(eq (point) (point-min)))
|
||
(org-element--cache-warn
|
||
"Cached element has wrong parent in %s. Resetting.
|
||
If this warning appears regularly, please report the warning text to Org mode mailing list (M-x org-submit-bug-report).
|
||
The element is: %S\n The parent is: %S\n The real parent is: %S"
|
||
(buffer-name (current-buffer))
|
||
(org-element--format-element element)
|
||
(org-element--format-element (org-element-property :parent element))
|
||
(org-element--format-element (org-element--current-element (org-element-property :end (org-element-property :parent element)))))
|
||
(org-element-cache-reset))
|
||
(org-element--cache-verify-element (org-element-property :parent element))))
|
||
;; Verify the element itself.
|
||
(when (and org-element--cache-self-verify
|
||
(org-element--cache-active-p)
|
||
element
|
||
(not (memq (org-element-type element) '(section org-data)))
|
||
;; Avoid too much slowdown
|
||
(< (random 1000) (* 1000 org-element--cache-self-verify-frequency)))
|
||
(let ((real-element (let (org-element-use-cache)
|
||
(org-element--parse-to
|
||
(if (memq (org-element-type element) '(table-row item))
|
||
(1+ (org-element-property :begin element))
|
||
(org-element-property :begin element))))))
|
||
(unless (and (eq (org-element-type real-element) (org-element-type element))
|
||
(eq (org-element-property :begin real-element) (org-element-property :begin element))
|
||
(eq (org-element-property :end real-element) (org-element-property :end element))
|
||
(eq (org-element-property :contents-begin real-element) (org-element-property :contents-begin element))
|
||
(eq (org-element-property :contents-end real-element) (org-element-property :contents-end element))
|
||
(or (not (org-element-property :ID real-element))
|
||
(string= (org-element-property :ID real-element) (org-element-property :ID element))))
|
||
(org-element--cache-warn "(%S) Cached element is incorrect in %s. (Cache tic up to date: %S) Resetting.
|
||
If this warning appears regularly, please report the warning text to Org mode mailing list (M-x org-submit-bug-report).
|
||
The element is: %S\n The real element is: %S\n Cache around :begin:\n%S\n%S\n%S"
|
||
this-command
|
||
(buffer-name (current-buffer))
|
||
(if (/= org-element--cache-change-tic
|
||
(buffer-chars-modified-tick))
|
||
"no" "yes")
|
||
(org-element--format-element element)
|
||
(org-element--format-element real-element)
|
||
(org-element--cache-find (1- (org-element-property :begin real-element)))
|
||
(car (org-element--cache-find (org-element-property :begin real-element) 'both))
|
||
(cdr (org-element--cache-find (org-element-property :begin real-element) 'both)))
|
||
(org-element-cache-reset))))))
|
||
|
||
;;; Cache persistence
|
||
|
||
(defun org-element--cache-persist-before-write (container &optional associated)
|
||
"Sync cache before saving."
|
||
(when (equal container '(elisp org-element--cache))
|
||
(if (and org-element-use-cache
|
||
(plist-get associated :file)
|
||
(get-file-buffer (plist-get associated :file))
|
||
org-element-cache-persistent)
|
||
(with-current-buffer (get-file-buffer (plist-get associated :file))
|
||
(if (and (derived-mode-p 'org-mode)
|
||
org-element--cache)
|
||
(org-with-wide-buffer
|
||
(org-element--cache-sync (current-buffer) (point-max))
|
||
;; Cleanup cache request keys to avoid collisions during next
|
||
;; Emacs session.
|
||
(avl-tree-mapc
|
||
(lambda (el)
|
||
(org-element-put-property el :org-element--cache-sync-key nil))
|
||
org-element--cache)
|
||
nil)
|
||
'forbid))
|
||
'forbid)))
|
||
|
||
(defun org-element--cache-persist-before-read (container &optional associated)
|
||
"Avoid reading cache before Org mode is loaded."
|
||
(when (equal container '(elisp org-element--cache))
|
||
(if (not (and (plist-get associated :file)
|
||
(get-file-buffer (plist-get associated :file))))
|
||
'forbid
|
||
(with-current-buffer (get-file-buffer (plist-get associated :file))
|
||
(unless (and org-element-use-cache
|
||
org-element-cache-persistent
|
||
(derived-mode-p 'org-mode)
|
||
(equal (secure-hash 'md5 (current-buffer))
|
||
(plist-get associated :hash)))
|
||
'forbid)))))
|
||
|
||
(defun org-element--cache-persist-after-read (container &optional associated)
|
||
"Setup restored cache."
|
||
(when (and (plist-get associated :file)
|
||
(get-file-buffer (plist-get associated :file)))
|
||
(with-current-buffer (get-file-buffer (plist-get associated :file))
|
||
(when (and org-element-use-cache org-element-cache-persistent)
|
||
(when (and (equal container '(elisp org-element--cache)) org-element--cache)
|
||
(setq-local org-element--cache-size (avl-tree-size org-element--cache)))
|
||
(when (and (equal container '(elisp org-element--headline-cache)) org-element--headline-cache)
|
||
(setq-local org-element--headline-cache-size (avl-tree-size org-element--headline-cache)))))))
|
||
|
||
(add-hook 'org-persist-before-write-hook #'org-element--cache-persist-before-write)
|
||
(add-hook 'org-persist-before-read-hook #'org-element--cache-persist-before-read)
|
||
(add-hook 'org-persist-after-read-hook #'org-element--cache-persist-after-read)
|
||
|
||
;;;; Public Functions
|
||
|
||
(defvar-local org-element--cache-gapless nil
|
||
"An alist containing (granularity . `org-element--cache-change-tic') elements.
|
||
Each element indicates the latest `org-element--cache-change-tic' when
|
||
change did not contain gaps.")
|
||
|
||
;;;###autoload
|
||
(defun org-element-cache-reset (&optional all no-persistence)
|
||
"Reset cache in current buffer.
|
||
When optional argument ALL is non-nil, reset cache in all Org
|
||
buffers.
|
||
When optional argument NO-PERSISTENCE is non-nil, do not try to update
|
||
the cache persistence in the buffer."
|
||
(interactive "P")
|
||
(dolist (buffer (if all (buffer-list) (list (current-buffer))))
|
||
(org-with-base-buffer buffer
|
||
(when (and org-element-use-cache (derived-mode-p 'org-mode))
|
||
;; Only persist cache in file buffers.
|
||
(when (and (buffer-file-name) (not no-persistence))
|
||
(when (not org-element-cache-persistent)
|
||
(org-persist-unregister 'org-element--headline-cache (current-buffer))
|
||
(org-persist-unregister 'org-element--cache (current-buffer)))
|
||
(when (and org-element-cache-persistent
|
||
(buffer-file-name (current-buffer)))
|
||
(org-persist-register 'org-element--cache (current-buffer))
|
||
(org-persist-register 'org-element--headline-cache
|
||
(current-buffer)
|
||
:inherit 'org-element--cache)))
|
||
(setq-local org-element--cache-change-tic (buffer-chars-modified-tick))
|
||
(setq-local org-element--cache-last-buffer-size (buffer-size))
|
||
(setq-local org-element--cache-gapless nil)
|
||
(setq-local org-element--cache
|
||
(avl-tree-create #'org-element--cache-compare))
|
||
(setq-local org-element--headline-cache
|
||
(avl-tree-create #'org-element--cache-compare))
|
||
(setq-local org-element--cache-hash-left (make-vector org-element--cache-hash-size nil))
|
||
(setq-local org-element--cache-hash-right (make-vector org-element--cache-hash-size nil))
|
||
(setq-local org-element--cache-size 0)
|
||
(setq-local org-element--headline-cache-size 0)
|
||
(setq-local org-element--cache-sync-keys-value 0)
|
||
(setq-local org-element--cache-change-warning nil)
|
||
(setq-local org-element--cache-sync-requests nil)
|
||
(setq-local org-element--cache-sync-timer nil)
|
||
(org-element--cache-setup-change-functions)
|
||
;; Make sure that `org-element--cache-after-change' and
|
||
;; `org-element--cache-before-change' are working inside properly created
|
||
;; indirect buffers. Note that `clone-indirect-buffer-hook'
|
||
;; will not work inside indirect buffers not created by
|
||
;; calling `clone-indirect-buffer'. We consider that the code
|
||
;; not using `clone-indirect-buffer' to be written with
|
||
;; awareness about possible consequences.
|
||
(add-hook 'clone-indirect-buffer-hook
|
||
#'org-element--cache-setup-change-functions)))))
|
||
|
||
;;;###autoload
|
||
(defun org-element-cache-refresh (pos)
|
||
"Refresh cache at position POS."
|
||
(when (org-element--cache-active-p)
|
||
(org-element--cache-sync (current-buffer) pos)
|
||
(org-element--cache-submit-request pos pos 0)
|
||
(org-element--cache-set-timer (current-buffer))))
|
||
|
||
(defvar warning-minimum-log-level) ; Defined in warning.el
|
||
|
||
(defvar org-element-cache-map-continue-from nil
|
||
"Position from where mapping should continue.
|
||
This variable can be set by called function, especially when the
|
||
function modified the buffer.")
|
||
;;;###autoload
|
||
(cl-defun org-element-cache-map (func &key (granularity 'headline+inlinetask) restrict-elements
|
||
next-re fail-re from-pos (to-pos (point-max-marker)) after-element limit-count
|
||
narrow)
|
||
"Map all elements in current buffer with FUNC according to
|
||
GRANULARITY. Collect non-nil return values into result list.
|
||
|
||
FUNC should accept a single argument - the element.
|
||
|
||
FUNC can modify the buffer, but doing so may reduce performance. If
|
||
buffer is modified, the mapping will continue from an element starting
|
||
after the last mapped element. If the last mapped element is deleted,
|
||
the subsequent element will be skipped as it cannot be distinguished
|
||
deterministically from a changed element. If FUNC is expected to
|
||
delete the element, it should directly set the value of
|
||
`org-element-cache-map-continue-from' to force `org-element-cache-map'
|
||
continue from the right point in buffer.
|
||
|
||
If some elements are not yet in cache, they will be added.
|
||
|
||
GRANULARITY can be `headline', `headline+inlinetask'
|
||
`greater-element', or `element'. The default is
|
||
`headline+inlinetask'. `object' granularity is not supported.
|
||
|
||
RESTRICT-ELEMENTS is a list of element types to be mapped over.
|
||
|
||
NEXT-RE is a regexp used to search next candidate match when FUNC
|
||
returns non-nil and to search the first candidate match. FAIL-RE is a
|
||
regexp used to search next candidate match when FUNC returns nil. The
|
||
mapping will continue starting from headline at the RE match.
|
||
|
||
FROM-POS and TO-POS are buffer positions. When non-nil, they bound the
|
||
mapped elements to elements starting at of after FROM-POS but before
|
||
TO-POS.
|
||
|
||
AFTER-ELEMENT, when non-nil, bounds the mapping to all the elements
|
||
after AFTER-ELEMENT (i.e. if AFTER-ELEMENT is a headline section, we
|
||
map all the elements starting from first element inside section, but
|
||
not including the section).
|
||
|
||
LIMIT-COUNT limits mapping to that many first matches where FUNC
|
||
returns non-nil.
|
||
|
||
NARROW controls whether current buffer narrowing should be preserved.
|
||
|
||
This function does a subset of what `org-element-map' does, but with
|
||
much better performance. Cached elements are supplied as the single
|
||
argument of FUNC. Changes to elements made in FUNC will also alter
|
||
the cache."
|
||
(unless (org-element--cache-active-p)
|
||
(error "Cache must be active."))
|
||
(unless (memq granularity '( headline headline+inlinetask
|
||
greater-element element))
|
||
(error "Unsupported granularity: %S" granularity))
|
||
;; Make TO-POS marker. Otherwise, buffer edits may garble the the
|
||
;; process.
|
||
(unless (markerp to-pos)
|
||
(let ((mk (make-marker)))
|
||
(set-marker mk to-pos)
|
||
(setq to-pos mk)))
|
||
(let (;; Bind variables used inside loop to avoid memory
|
||
;; re-allocation on every iteration.
|
||
;; See https://emacsconf.org/2021/talks/faster/
|
||
tmpnext-start tmpparent tmpelement)
|
||
(save-excursion
|
||
(save-restriction
|
||
(unless narrow (widen))
|
||
;; Synchronize cache up to the end of mapped region.
|
||
(org-element-at-point to-pos)
|
||
(cl-macrolet ((cache-root
|
||
;; Use the most optimal version of cache available.
|
||
() `(org-with-base-buffer nil
|
||
(if (memq granularity '(headline headline+inlinetask))
|
||
(org-element--headline-cache-root)
|
||
(org-element--cache-root))))
|
||
(cache-size
|
||
;; Use the most optimal version of cache available.
|
||
() `(org-with-base-buffer nil
|
||
(if (memq granularity '(headline headline+inlinetask))
|
||
org-element--headline-cache-size
|
||
org-element--cache-size)))
|
||
(cache-walk-restart
|
||
;; Restart tree traversal after AVL tree re-balance.
|
||
() `(when node
|
||
(org-element-at-point (point-max))
|
||
(setq node (cache-root)
|
||
stack (list nil)
|
||
leftp t
|
||
continue-flag t)))
|
||
(cache-walk-abort
|
||
;; Abort tree traversal.
|
||
() `(setq continue-flag t
|
||
node nil))
|
||
(element-match-at-point
|
||
;; Returning the first element to match around point.
|
||
;; For example, if point is inside headline and
|
||
;; granularity is restricted to headlines only, skip
|
||
;; over all the child elements inside the headline
|
||
;; and return the first parent headline.
|
||
;; When we are inside a cache gap, calling
|
||
;; `org-element-at-point' also fills the cache gap down to
|
||
;; point.
|
||
() `(progn
|
||
;; Parsing is one of the performance
|
||
;; bottlenecks. Make sure to optimize it as
|
||
;; much as possible.
|
||
;;
|
||
;; Avoid extra staff like timer cancels et al
|
||
;; and only call `org-element--cache-sync-requests' when
|
||
;; there are pending requests.
|
||
(org-with-base-buffer nil
|
||
(when org-element--cache-sync-requests
|
||
(org-element--cache-sync (current-buffer))))
|
||
;; Call `org-element--parse-to' directly avoiding any
|
||
;; kind of `org-element-at-point' overheads.
|
||
(if restrict-elements
|
||
;; Search directly instead of calling
|
||
;; `org-element-lineage' to avoid funcall overheads
|
||
;; and making sure that we do not go all
|
||
;; the way to `org-data' as `org-element-lineage'
|
||
;; does.
|
||
(progn
|
||
(setq tmpelement (org-element--parse-to (point)))
|
||
(while (and tmpelement (not (memq (org-element-type tmpelement) restrict-elements)))
|
||
(setq tmpelement (org-element-property :parent tmpelement)))
|
||
tmpelement)
|
||
(org-element--parse-to (point)))))
|
||
;; Starting from (point), search RE and move START to
|
||
;; the next valid element to be matched according to
|
||
;; restriction. Abort cache walk if no next element
|
||
;; can be found. When RE is nil, just find element at
|
||
;; point.
|
||
(move-start-to-next-match
|
||
(re) `(save-match-data
|
||
(if (or (not ,re)
|
||
(if org-element--cache-map-statistics
|
||
(progn
|
||
(setq before-time (float-time))
|
||
(re-search-forward (or (car-safe ,re) ,re) nil 'move)
|
||
(cl-incf re-search-time
|
||
(- (float-time)
|
||
before-time)))
|
||
(re-search-forward (or (car-safe ,re) ,re) nil 'move)))
|
||
(unless (or (< (point) (or start -1))
|
||
(and data
|
||
(< (point) (org-element-property :begin data))))
|
||
(if (cdr-safe ,re)
|
||
;; Avoid parsing when we are 100%
|
||
;; sure that regexp is good enough
|
||
;; to find new START.
|
||
(setq start (match-beginning 0))
|
||
(setq start (max (or start -1)
|
||
(or (org-element-property :begin data) -1)
|
||
(or (org-element-property :begin (element-match-at-point)) -1))))
|
||
(when (>= start to-pos) (cache-walk-abort))
|
||
(when (eq start -1) (setq start nil)))
|
||
(cache-walk-abort))))
|
||
;; Find expected begin position of an element after
|
||
;; DATA.
|
||
(next-element-start
|
||
() `(progn
|
||
(setq tmpnext-start nil)
|
||
(if (memq granularity '(headline headline+inlinetask))
|
||
(setq tmpnext-start (or (when (memq (org-element-type data) '(headline org-data))
|
||
(org-element-property :contents-begin data))
|
||
(org-element-property :end data)))
|
||
(setq tmpnext-start (or (when (memq (org-element-type data) org-element-greater-elements)
|
||
(org-element-property :contents-begin data))
|
||
(org-element-property :end data))))
|
||
;; DATA end may be the last element inside
|
||
;; i.e. source block. Skip up to the end
|
||
;; of parent in such case.
|
||
(setq tmpparent data)
|
||
(catch :exit
|
||
(when (eq tmpnext-start (org-element-property :contents-end tmpparent))
|
||
(setq tmpnext-start (org-element-property :end tmpparent)))
|
||
(while (setq tmpparent (org-element-property :parent tmpparent))
|
||
(if (eq tmpnext-start (org-element-property :contents-end tmpparent))
|
||
(setq tmpnext-start (org-element-property :end tmpparent))
|
||
(throw :exit t))))
|
||
tmpnext-start))
|
||
;; Check if cache does not have gaps.
|
||
(cache-gapless-p
|
||
() `(org-with-base-buffer nil
|
||
(eq org-element--cache-change-tic
|
||
(alist-get granularity org-element--cache-gapless)))))
|
||
;; The core algorithm is simple walk along binary tree. However,
|
||
;; instead of checking all the tree elements from first to last
|
||
;; (like in `avl-tree-mapcar'), we begin from FROM-POS skipping
|
||
;; the elements before FROM-POS efficiently: O(logN) instead of
|
||
;; O(Nbefore).
|
||
;;
|
||
;; Later, we may also not check every single element in the
|
||
;; binary tree after FROM-POS. Instead, we can find position of
|
||
;; next candidate elements by means of regexp search and skip the
|
||
;; binary tree branches that are before the next candidate:
|
||
;; again, O(logN) instead of O(Nbetween).
|
||
;;
|
||
;; Some elements might not yet be in the tree. So, we also parse
|
||
;; the empty gaps in cache as needed making sure that we do not
|
||
;; miss anything.
|
||
(let* (;; START is always beginning of an element. When there is
|
||
;; no element in cache at START, we are inside cache gap
|
||
;; and need to fill it.
|
||
(start (and from-pos
|
||
(progn
|
||
(goto-char from-pos)
|
||
(org-element-property :begin (element-match-at-point)))))
|
||
;; Some elements may start at the same position, so we
|
||
;; also keep track of the last processed element and make
|
||
;; sure that we do not try to search it again.
|
||
(prev after-element)
|
||
(node (cache-root))
|
||
data
|
||
(stack (list nil))
|
||
(leftp t)
|
||
result
|
||
;; Whether previous element matched FUNC (FUNC
|
||
;; returned non-nil).
|
||
(last-match t)
|
||
continue-flag
|
||
;; Generic regexp to search next potential match. If it
|
||
;; is a cons of (regexp . 'match-beg), we are 100% sure
|
||
;; that the match beginning is the existing element
|
||
;; beginning.
|
||
(next-element-re (pcase granularity
|
||
((or `headline
|
||
(guard (equal '(headline)
|
||
restrict-elements)))
|
||
(cons
|
||
(org-with-limited-levels
|
||
org-element-headline-re)
|
||
'match-beg))
|
||
(`headline+inlinetask
|
||
(cons
|
||
(if (equal '(inlinetask) restrict-elements)
|
||
(org-inlinetask-outline-regexp)
|
||
org-element-headline-re)
|
||
'match-beg))
|
||
;; TODO: May add other commonly
|
||
;; searched elements as needed.
|
||
(_)))
|
||
;; Make sure that we are not checking the same regexp twice.
|
||
(next-re (unless (and next-re
|
||
(string= next-re
|
||
(or (car-safe next-element-re)
|
||
next-element-re)))
|
||
next-re))
|
||
(fail-re (unless (and fail-re
|
||
(string= fail-re
|
||
(or (car-safe next-element-re)
|
||
next-element-re)))
|
||
fail-re))
|
||
(restrict-elements (or restrict-elements
|
||
(pcase granularity
|
||
(`headline
|
||
'(headline))
|
||
(`headline+inlinetask
|
||
'(headline inlinetask))
|
||
(`greater-element
|
||
org-element-greater-elements)
|
||
(_ nil))))
|
||
;; Statistics
|
||
(time (float-time))
|
||
(predicate-time 0)
|
||
(pre-process-time 0)
|
||
(re-search-time 0)
|
||
(count-predicate-calls-match 0)
|
||
(count-predicate-calls-fail 0)
|
||
;; Bind variables used inside loop to avoid memory
|
||
;; re-allocation on every iteration.
|
||
;; See https://emacsconf.org/2021/talks/faster/
|
||
cache-size before-time modified-tic)
|
||
;; Skip to first element within region.
|
||
(goto-char (or start (point-min)))
|
||
(move-start-to-next-match next-element-re)
|
||
(unless (and start (>= start to-pos))
|
||
(while node
|
||
(setq data (avl-tree--node-data node))
|
||
(if (and leftp (avl-tree--node-left node) ; Left branch.
|
||
;; Do not move to left branch when we are before
|
||
;; PREV.
|
||
(or (not prev)
|
||
(not (org-element--cache-key-less-p
|
||
(org-element--cache-key data)
|
||
(org-element--cache-key prev))))
|
||
;; ... or when we are before START.
|
||
(or (not start)
|
||
(not (> start (org-element-property :begin data)))))
|
||
(progn (push node stack)
|
||
(setq node (avl-tree--node-left node)))
|
||
;; The whole tree left to DATA is before START and
|
||
;; PREV. DATA may still be before START (i.e. when
|
||
;; DATA is the root or when START moved), at START, or
|
||
;; after START.
|
||
;;
|
||
;; If DATA is before start, skip it over and move to
|
||
;; subsequent elements.
|
||
;; If DATA is at start, run FUNC if necessary and
|
||
;; update START according and NEXT-RE, FAIL-RE,
|
||
;; NEXT-ELEMENT-RE.
|
||
;; If DATA is after start, we have found a cache gap
|
||
;; and need to fill it.
|
||
(unless (or (and start (< (org-element-property :begin data) start))
|
||
(and prev (not (org-element--cache-key-less-p
|
||
(org-element--cache-key prev)
|
||
(org-element--cache-key data)))))
|
||
;; DATA is at of after START and PREV.
|
||
(if (or (not start) (= (org-element-property :begin data) start))
|
||
;; DATA is at START. Match it.
|
||
;; In the process, we may alter the buffer,
|
||
;; so also keep track of the cache state.
|
||
(progn
|
||
(setq modified-tic
|
||
(org-with-base-buffer nil
|
||
org-element--cache-change-tic))
|
||
(setq cache-size (cache-size))
|
||
;; When NEXT-RE/FAIL-RE is provided, skip to
|
||
;; next regexp match after :begin of the current
|
||
;; element.
|
||
(when (if last-match next-re fail-re)
|
||
(goto-char (org-element-property :begin data))
|
||
(move-start-to-next-match
|
||
(if last-match next-re fail-re)))
|
||
(when (and (or (not start) (eq (org-element-property :begin data) start))
|
||
(< (org-element-property :begin data) to-pos))
|
||
;; Calculate where next possible element
|
||
;; starts and update START if needed.
|
||
(setq start (next-element-start))
|
||
(goto-char start)
|
||
;; Move START further if possible.
|
||
(when (and next-element-re
|
||
;; Do not move if we know for
|
||
;; sure that cache does not
|
||
;; contain gaps. Regexp
|
||
;; searches are not cheap.
|
||
(not (cache-gapless-p)))
|
||
(move-start-to-next-match next-element-re)
|
||
;; Make sure that point is at START
|
||
;; before running FUNC.
|
||
(goto-char start))
|
||
;; Try FUNC if DATA matches all the
|
||
;; restrictions. Calculate new START.
|
||
(when (or (not restrict-elements)
|
||
(memq (org-element-type data) restrict-elements))
|
||
;; DATA matches restriction. FUNC may
|
||
;;
|
||
;; Call FUNC. FUNC may move point.
|
||
(setq org-element-cache-map-continue-from nil)
|
||
(if (org-with-base-buffer nil org-element--cache-map-statistics)
|
||
(progn
|
||
(setq before-time (float-time))
|
||
(push (funcall func data) result)
|
||
(cl-incf predicate-time
|
||
(- (float-time)
|
||
before-time))
|
||
(if (car result)
|
||
(cl-incf count-predicate-calls-match)
|
||
(cl-incf count-predicate-calls-fail)))
|
||
(push (funcall func data) result)
|
||
(when (car result) (cl-incf count-predicate-calls-match)))
|
||
;; Set `last-match'.
|
||
(setq last-match (car result))
|
||
;; If FUNC moved point forward, update
|
||
;; START.
|
||
(when org-element-cache-map-continue-from
|
||
(goto-char org-element-cache-map-continue-from))
|
||
(when (> (point) start)
|
||
(move-start-to-next-match nil)
|
||
;; (point) inside matching element.
|
||
;; Go further.
|
||
(when (> (point) start)
|
||
(setq data (element-match-at-point))
|
||
(if (not data)
|
||
(cache-walk-abort)
|
||
(goto-char (next-element-start))
|
||
(move-start-to-next-match next-element-re))))
|
||
;; Drop nil.
|
||
(unless (car result) (pop result)))
|
||
;; If FUNC did not move the point and we
|
||
;; know for sure that cache does not contain
|
||
;; gaps, do not try to calculate START in
|
||
;; advance but simply loop to the next cache
|
||
;; element.
|
||
(when (and (cache-gapless-p)
|
||
(eq (next-element-start)
|
||
start))
|
||
(setq start nil))
|
||
;; Check if the buffer has been modified.
|
||
(unless (org-with-base-buffer nil
|
||
(and (eq modified-tic org-element--cache-change-tic)
|
||
(eq cache-size (cache-size))))
|
||
;; START may no longer be valid, update
|
||
;; it to beginning of real element.
|
||
;; Upon modification, START may lay
|
||
;; inside an element. We want to move
|
||
;; it to real beginning then despite
|
||
;; START being larger.
|
||
(setq start nil)
|
||
(let ((data nil)) ; data may not be valid. ignore it.
|
||
(move-start-to-next-match nil))
|
||
;; The new element may now start before
|
||
;; or at already processed position.
|
||
;; Make sure that we continue from an
|
||
;; element past already processed
|
||
;; place.
|
||
(when (and start
|
||
(<= start (org-element-property :begin data))
|
||
(not org-element-cache-map-continue-from))
|
||
(goto-char start)
|
||
(setq data (element-match-at-point))
|
||
;; If DATA is nil, buffer is
|
||
;; empty. Abort.
|
||
(when data
|
||
(goto-char (next-element-start))
|
||
(move-start-to-next-match next-element-re)))
|
||
(org-element-at-point to-pos)
|
||
(cache-walk-restart))
|
||
;; Reached LIMIT-COUNT. Abort.
|
||
(when (and limit-count
|
||
(>= count-predicate-calls-match
|
||
limit-count))
|
||
(cache-walk-abort))
|
||
(if (org-element-property :cached data)
|
||
(setq prev data)
|
||
(setq prev nil))))
|
||
;; DATA is after START. Fill the gap.
|
||
(if (memq (org-element-type (org-element--parse-to start)) '(plain-list table))
|
||
;; Tables and lists are special, we need a
|
||
;; trickery to make items/rows be populated
|
||
;; into cache.
|
||
(org-element--parse-to (1+ start)))
|
||
;; Restart tree traversal as AVL tree is
|
||
;; re-balanced upon adding elements. We can no
|
||
;; longer trust STACK.
|
||
(cache-walk-restart)))
|
||
;; Second, move to the right branch of the tree or skip
|
||
;; it altogether.
|
||
(if continue-flag
|
||
(setq continue-flag nil)
|
||
(setq node (if (and (car stack)
|
||
;; If START advanced beyond stack parent, skip the right branch.
|
||
(or (and start (< (org-element-property :begin (avl-tree--node-data (car stack))) start))
|
||
(and prev (org-element--cache-key-less-p
|
||
(org-element--cache-key (avl-tree--node-data (car stack)))
|
||
(org-element--cache-key prev)))))
|
||
(progn
|
||
(setq leftp nil)
|
||
(pop stack))
|
||
;; Otherwise, move ahead into the right
|
||
;; branch when it exists.
|
||
(if (setq leftp (avl-tree--node-right node))
|
||
(avl-tree--node-right node)
|
||
(pop stack))))))))
|
||
(when (and org-element--cache-map-statistics
|
||
(or (not org-element--cache-map-statistics-threshold)
|
||
(> (- (float-time) time) org-element--cache-map-statistics-threshold)))
|
||
(message "Mapped over elements in %S. %d/%d predicate matches. Total time: %f sec. Pre-process time: %f sec. Predicate time: %f sec. Re-search time: %f sec.
|
||
Calling parameters: :granularity %S :restrict-elements %S :next-re %S :fail-re %S :from-pos %S :to-pos %S :limit-count %S :after-element %S"
|
||
(current-buffer)
|
||
count-predicate-calls-match
|
||
(+ count-predicate-calls-match
|
||
count-predicate-calls-fail)
|
||
(- (float-time) time)
|
||
pre-process-time
|
||
predicate-time
|
||
re-search-time
|
||
granularity restrict-elements next-re fail-re from-pos to-pos limit-count after-element))
|
||
;; Return result.
|
||
(nreverse result)))))))
|
||
|
||
|
||
|
||
|
||
;;; The Toolbox
|
||
;;
|
||
;; The first move is to implement a way to obtain the smallest element
|
||
;; containing point. This is the job of `org-element-at-point'. It
|
||
;; basically jumps back to the beginning of section containing point
|
||
;; and proceed, one element after the other, with
|
||
;; `org-element--current-element' until the container is found. Note:
|
||
;; When using `org-element-at-point', secondary values are never
|
||
;; parsed since the function focuses on elements, not on objects.
|
||
;;
|
||
;; At a deeper level, `org-element-context' lists all elements and
|
||
;; objects containing point.
|
||
;;
|
||
;; `org-element-nested-p' and `org-element-swap-A-B' may be used
|
||
;; internally by navigation and manipulation tools.
|
||
|
||
|
||
;;;###autoload
|
||
(defun org-element-at-point (&optional pom cached-only)
|
||
"Determine closest element around point or POM.
|
||
|
||
Only check cached element when CACHED-ONLY is non-nil and return nil
|
||
unconditionally when element at POM is not in cache.
|
||
|
||
Return value is a list like (TYPE PROPS) where TYPE is the type
|
||
of the element and PROPS a plist of properties associated to the
|
||
element.
|
||
|
||
Possible types are defined in `org-element-all-elements'.
|
||
Properties depend on element or object type, but always include
|
||
`:begin', `:end', and `:post-blank' properties.
|
||
|
||
As a special case, if point is at the very beginning of the first
|
||
item in a list or sub-list, returned element will be that list
|
||
instead of the item. Likewise, if point is at the beginning of
|
||
the first row of a table, returned element will be the table
|
||
instead of the first row.
|
||
|
||
When point is at the end of the buffer, return the innermost
|
||
element ending there."
|
||
(setq pom (or pom (point)))
|
||
;; Allow re-parsing when the command can benefit from it.
|
||
(when (and cached-only
|
||
(memq this-command org-element--cache-non-modifying-commands))
|
||
(setq cached-only nil))
|
||
(let (element)
|
||
(when (org-element--cache-active-p)
|
||
(if (not (org-with-base-buffer nil org-element--cache)) (org-element-cache-reset)
|
||
(unless cached-only (org-element--cache-sync (current-buffer) pom))))
|
||
(setq element (if cached-only
|
||
(when (and (org-element--cache-active-p)
|
||
(or (not org-element--cache-sync-requests)
|
||
(< pom
|
||
(org-element--request-beg
|
||
(car org-element--cache-sync-requests)))))
|
||
(org-element--cache-find pom))
|
||
(condition-case err
|
||
(org-element--parse-to pom)
|
||
(error
|
||
(org-element--cache-warn
|
||
"Org parser error in %s::%S. Resetting.\n The error was: %S\n Backtrace:\n%S\n Please report this to Org mode mailing list (M-x org-submit-bug-report)."
|
||
(buffer-name (current-buffer))
|
||
pom
|
||
err
|
||
(when (and (fboundp 'backtrace-get-frames)
|
||
(fboundp 'backtrace-to-string))
|
||
(backtrace-to-string (backtrace-get-frames 'backtrace))))
|
||
(org-element-cache-reset)
|
||
(org-element--parse-to pom)))))
|
||
(when (and (org-element--cache-active-p)
|
||
element
|
||
(org-element--cache-verify-element element))
|
||
(setq element (org-element--parse-to pom)))
|
||
(unless (eq 'org-data (org-element-type element))
|
||
(unless (and cached-only
|
||
(not (and element
|
||
(or (= pom (org-element-property :begin element))
|
||
(and (not (memq (org-element-type element) org-element-greater-elements))
|
||
(>= pom (org-element-property :begin element))
|
||
(< pom (org-element-property :end element)))
|
||
(and (org-element-property :contents-begin element)
|
||
(>= pom (org-element-property :begin element))
|
||
(< pom (org-element-property :contents-begin element)))
|
||
(and (not (org-element-property :contents-end element))
|
||
(>= pom (org-element-property :begin element))
|
||
(< pom (org-element-property :end element)))))))
|
||
(if (not (eq (org-element-type element) 'section))
|
||
element
|
||
(org-element-at-point (1+ pom) cached-only))))))
|
||
|
||
;;;###autoload
|
||
(defsubst org-element-at-point-no-context (&optional pom)
|
||
"Quickly find element at point or POM.
|
||
|
||
It is a faster version of `org-element-at-point' that is not
|
||
guaranteed to return correct `:parent' properties even when cache is
|
||
enabled."
|
||
(or (org-element-at-point pom 'cached-only)
|
||
(let (org-element-use-cache) (org-element-at-point pom))))
|
||
|
||
;;;###autoload
|
||
(defun org-element-context (&optional element)
|
||
"Return smallest element or object around point.
|
||
|
||
Return value is a list like (TYPE PROPS) where TYPE is the type
|
||
of the element or object and PROPS a plist of properties
|
||
associated to it.
|
||
|
||
Possible types are defined in `org-element-all-elements' and
|
||
`org-element-all-objects'. Properties depend on element or
|
||
object type, but always include `:begin', `:end', `:parent' and
|
||
`:post-blank'.
|
||
|
||
As a special case, if point is right after an object and not at
|
||
the beginning of any other object, return that object.
|
||
|
||
Optional argument ELEMENT, when non-nil, is the closest element
|
||
containing point, as returned by `org-element-at-point'.
|
||
Providing it allows for quicker computation."
|
||
(save-match-data
|
||
(catch 'objects-forbidden
|
||
(org-with-wide-buffer
|
||
(let* ((pos (point))
|
||
(element (or element (org-element-at-point)))
|
||
(type (org-element-type element))
|
||
(post (org-element-property :post-affiliated element)))
|
||
;; If point is inside an element containing objects or
|
||
;; a secondary string, narrow buffer to the container and
|
||
;; proceed with parsing. Otherwise, return ELEMENT.
|
||
(cond
|
||
;; At a parsed affiliated keyword, check if we're inside main
|
||
;; or dual value.
|
||
((and post (< pos post))
|
||
(beginning-of-line)
|
||
(let ((case-fold-search t)) (looking-at org-element--affiliated-re))
|
||
(cond
|
||
((not (member-ignore-case (match-string 1)
|
||
org-element-parsed-keywords))
|
||
(throw 'objects-forbidden element))
|
||
((< (match-end 0) pos)
|
||
(narrow-to-region (match-end 0) (line-end-position)))
|
||
((and (match-beginning 2)
|
||
(>= pos (match-beginning 2))
|
||
(< pos (match-end 2)))
|
||
(narrow-to-region (match-beginning 2) (match-end 2)))
|
||
(t (throw 'objects-forbidden element)))
|
||
;; Also change type to retrieve correct restrictions.
|
||
(setq type 'keyword))
|
||
;; At an item, objects can only be located within tag, if any.
|
||
((eq type 'item)
|
||
(let ((tag (org-element-property :tag element)))
|
||
(if (or (not tag) (/= (line-beginning-position) post))
|
||
(throw 'objects-forbidden element)
|
||
(beginning-of-line)
|
||
(search-forward tag (line-end-position))
|
||
(goto-char (match-beginning 0))
|
||
(if (and (>= pos (point)) (< pos (match-end 0)))
|
||
(narrow-to-region (point) (match-end 0))
|
||
(throw 'objects-forbidden element)))))
|
||
;; At an headline or inlinetask, objects are in title.
|
||
((memq type '(headline inlinetask))
|
||
(let ((case-fold-search nil))
|
||
(goto-char (org-element-property :begin element))
|
||
(looking-at org-complex-heading-regexp)
|
||
(let ((end (match-end 4)))
|
||
(if (not end) (throw 'objects-forbidden element)
|
||
(goto-char (match-beginning 4))
|
||
(when (looking-at org-element-comment-string)
|
||
(goto-char (match-end 0)))
|
||
(if (>= (point) end) (throw 'objects-forbidden element)
|
||
(narrow-to-region (point) end))))))
|
||
;; At a paragraph, a table-row or a verse block, objects are
|
||
;; located within their contents.
|
||
((memq type '(paragraph table-row verse-block))
|
||
(let ((cbeg (org-element-property :contents-begin element))
|
||
(cend (org-element-property :contents-end element)))
|
||
;; CBEG is nil for table rules.
|
||
(if (and cbeg cend (>= pos cbeg)
|
||
(or (< pos cend) (and (= pos cend) (eobp))))
|
||
(narrow-to-region cbeg cend)
|
||
(throw 'objects-forbidden element))))
|
||
(t (throw 'objects-forbidden element)))
|
||
(goto-char (point-min))
|
||
(let ((restriction (org-element-restriction type))
|
||
(parent element)
|
||
last)
|
||
(catch 'exit
|
||
(while t
|
||
(let ((next (org-element--object-lex restriction)))
|
||
(when next (org-element-put-property next :parent parent))
|
||
;; Process NEXT, if any, in order to know if we need to
|
||
;; skip it, return it or move into it.
|
||
(if (or (not next) (> (org-element-property :begin next) pos))
|
||
(throw 'exit (or last parent))
|
||
(let ((end (org-element-property :end next))
|
||
(cbeg (org-element-property :contents-begin next))
|
||
(cend (org-element-property :contents-end next)))
|
||
(cond
|
||
;; Skip objects ending before point. Also skip
|
||
;; objects ending at point unless it is also the
|
||
;; end of buffer, since we want to return the
|
||
;; innermost object.
|
||
((and (<= end pos) (/= (point-max) end))
|
||
(goto-char end)
|
||
;; For convenience, when object ends at POS,
|
||
;; without any space, store it in LAST, as we
|
||
;; will return it if no object starts here.
|
||
(when (and (= end pos)
|
||
(not (memq (char-before) '(?\s ?\t))))
|
||
(setq last next)))
|
||
;; If POS is within a container object, move into
|
||
;; that object.
|
||
((and cbeg cend
|
||
(>= pos cbeg)
|
||
(or (< pos cend)
|
||
;; At contents' end, if there is no
|
||
;; space before point, also move into
|
||
;; object, for consistency with
|
||
;; convenience feature above.
|
||
(and (= pos cend)
|
||
(or (= (point-max) pos)
|
||
(not (memq (char-before pos)
|
||
'(?\s ?\t)))))))
|
||
(goto-char cbeg)
|
||
(narrow-to-region (point) cend)
|
||
(setq parent next)
|
||
(setq restriction (org-element-restriction next)))
|
||
;; Otherwise, return NEXT.
|
||
(t (throw 'exit next))))))))))))))
|
||
|
||
(defun org-element-lineage (datum &optional types with-self)
|
||
"List all ancestors of a given element or object.
|
||
|
||
DATUM is an object or element.
|
||
|
||
Return ancestors from the closest to the farthest. When optional
|
||
argument TYPES is a list of symbols, return the first element or
|
||
object in the lineage whose type belongs to that list instead.
|
||
|
||
When optional argument WITH-SELF is non-nil, lineage includes
|
||
DATUM itself as the first element, and TYPES, if provided, also
|
||
apply to it.
|
||
|
||
When DATUM is obtained through `org-element-context' or
|
||
`org-element-at-point', only ancestors from its section can be
|
||
found. There is no such limitation when DATUM belongs to a full
|
||
parse tree."
|
||
(let ((up (if with-self datum (org-element-property :parent datum)))
|
||
ancestors)
|
||
(while (and up (not (memq (org-element-type up) types)))
|
||
(unless types (push up ancestors))
|
||
(setq up (org-element-property :parent up)))
|
||
(if types up (nreverse ancestors))))
|
||
|
||
(defun org-element-nested-p (elem-A elem-B)
|
||
"Non-nil when elements ELEM-A and ELEM-B are nested."
|
||
(let ((beg-A (org-element-property :begin elem-A))
|
||
(beg-B (org-element-property :begin elem-B))
|
||
(end-A (org-element-property :end elem-A))
|
||
(end-B (org-element-property :end elem-B)))
|
||
(or (and (>= beg-A beg-B) (<= end-A end-B))
|
||
(and (>= beg-B beg-A) (<= end-B end-A)))))
|
||
|
||
(defun org-element-swap-A-B (elem-A elem-B)
|
||
"Swap elements ELEM-A and ELEM-B.
|
||
Assume ELEM-B is after ELEM-A in the buffer. Leave point at the
|
||
end of ELEM-A."
|
||
(goto-char (org-element-property :begin elem-A))
|
||
;; There are two special cases when an element doesn't start at bol:
|
||
;; the first paragraph in an item or in a footnote definition.
|
||
(let ((specialp (not (bolp))))
|
||
;; Only a paragraph without any affiliated keyword can be moved at
|
||
;; ELEM-A position in such a situation. Note that the case of
|
||
;; a footnote definition is impossible: it cannot contain two
|
||
;; paragraphs in a row because it cannot contain a blank line.
|
||
(when (and specialp
|
||
(or (not (eq (org-element-type elem-B) 'paragraph))
|
||
(/= (org-element-property :begin elem-B)
|
||
(org-element-property :contents-begin elem-B))))
|
||
(error "Cannot swap elements"))
|
||
;; Preserve folding state when `org-fold-core-style' is set to
|
||
;; `text-properties'.
|
||
(org-fold-core-ignore-modifications
|
||
;; In a special situation, ELEM-A will have no indentation. We'll
|
||
;; give it ELEM-B's (which will in, in turn, have no indentation).
|
||
(let* ((ind-B (when specialp
|
||
(goto-char (org-element-property :begin elem-B))
|
||
(current-indentation)))
|
||
(beg-A (org-element-property :begin elem-A))
|
||
(end-A (save-excursion
|
||
(goto-char (org-element-property :end elem-A))
|
||
(skip-chars-backward " \r\t\n")
|
||
(line-end-position)))
|
||
(beg-B (org-element-property :begin elem-B))
|
||
(end-B (save-excursion
|
||
(goto-char (org-element-property :end elem-B))
|
||
(skip-chars-backward " \r\t\n")
|
||
(line-end-position)))
|
||
;; Store inner folds responsible for visibility status.
|
||
(folds
|
||
(cons
|
||
(org-fold-core-get-regions :from beg-A :to end-A :relative t)
|
||
(org-fold-core-get-regions :from beg-B :to end-B :relative t)))
|
||
;; Get contents.
|
||
(body-A (buffer-substring beg-A end-A))
|
||
(body-B (buffer-substring beg-B end-B)))
|
||
;; Clear up the folds.
|
||
(org-fold-region beg-A end-A nil)
|
||
(org-fold-region beg-B end-B nil)
|
||
(delete-region beg-B end-B)
|
||
(goto-char beg-B)
|
||
(when specialp
|
||
(setq body-B (replace-regexp-in-string "\\`[ \t]*" "" body-B))
|
||
(indent-to-column ind-B))
|
||
(insert body-A)
|
||
;; Restore ex ELEM-A folds.
|
||
(org-fold-core-regions (car folds) :relative beg-B)
|
||
(goto-char beg-A)
|
||
(delete-region beg-A end-A)
|
||
(insert body-B)
|
||
;; Restore ex ELEM-A folds.
|
||
(org-fold-core-regions (cdr folds) :relative beg-A)
|
||
(goto-char (org-element-property :end elem-B))))))
|
||
|
||
(provide 'org-element)
|
||
|
||
;; Local variables:
|
||
;; generated-autoload-file: "org-loaddefs.el"
|
||
;; End:
|
||
|
||
;;; org-element.el ends here
|