1799 lines
63 KiB
EmacsLisp
1799 lines
63 KiB
EmacsLisp
;;; org-e-ascii.el --- ASCII Back-End For Org Export Engine
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;; Copyright (C) 2012 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 program 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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;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This library implements an ASCII back-end for Org generic exporter.
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;; To test it, run
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;;
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;; M-: (org-export-to-buffer 'e-ascii "*Test e-ASCII*") RET
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;;
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;; in an Org mode buffer then switch to that buffer to see the ASCII
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;; export. See contrib/lisp/org-export.el for more details on how
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;; this exporter works.
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;;; Code:
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(eval-when-compile (require 'cl))
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(declare-function org-element-contents "org-element" (element))
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(declare-function org-element-property "org-element" (property element))
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(declare-function org-element-normalize-string "org-element" (s))
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(declare-function org-element-map "org-element"
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(data types fun &optional info first-match))
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(declare-function org-element-time-stamp-interpreter
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"org-element" (time-stamp contents))
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(declare-function org-export-clean-table "org-export" (table specialp))
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(declare-function org-export-collect-footnote-definitions
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"org-export" (data info))
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(declare-function org-export-collect-headlines "org-export" (info &optional n))
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(declare-function org-export-collect-listings "org-export" (info))
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(declare-function org-export-collect-tables "org-export" (info))
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(declare-function org-export-data "org-export" (data backend info))
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(declare-function org-export-expand-macro "org-export" (macro info))
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(declare-function org-export-format-code-default "org-export" (element info))
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(declare-function org-export-get-coderef-format "org-export" (path desc))
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(declare-function org-export-get-footnote-number "org-export" (footnote info))
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(declare-function org-export-get-headline-number "org-export" (headline info))
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(declare-function org-export-get-ordinal "org-export"
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(element info &optional types predicate))
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(declare-function org-export-get-parent-headline "org-export" (blob info))
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(declare-function org-export-get-relative-level "org-export" (headline info))
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(declare-function org-export-included-file "org-export" (keyword backend info))
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(declare-function org-export-low-level-p "org-export" (headline info))
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(declare-function org-export-output-file-name "org-export"
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(extension &optional subtreep pub-dir))
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(declare-function org-export-resolve-coderef "org-export" (ref info))
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(declare-function org-export-resolve-fuzzy-link "org-export" (link info))
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(declare-function org-export-resolve-id-link "org-export" (link info))
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(declare-function org-export-resolve-ref-link "org-export" (link info))
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(declare-function org-export-secondary-string
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"org-export" (secondary backend info))
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(declare-function org-export-table-format-info "org-export" (table))
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(declare-function
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org-export-to-file "org-export"
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(backend file &optional subtreep visible-only body-only ext-plist))
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;;; Internal Variables
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;; The following setting won't allow to modify preferred charset
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;; through a buffer keyword or an option item, but, since the property
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;; will appear in communication channel nonetheless, it allows to
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;; override `org-e-ascii-charset' variable on the fly by the ext-plist
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;; mechanism.
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;; We also install a filter for headlines and sections, in order to
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;; control blank lines separating them in output string.
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(defconst org-e-ascii-option-alist
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'((:ascii-charset nil nil org-e-ascii-charset)
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)
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"Alist between ASCII export properties and ways to set them.
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See `org-export-option-alist' for more information on the
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structure or the values.")
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(defconst org-e-ascii-filters-alist
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'((:filter-headline . org-e-ascii-filter-headline-blank-lines)
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(:filter-section . org-e-ascii-filter-headline-blank-lines))
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"Alist between filters keywords and back-end specific filters.
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See `org-export-filters-alist' for more information.")
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(defconst org-e-ascii-dictionary
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'(("Footnotes\n"
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("en"
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:ascii "Footnotes\n"
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:latin1 "Footnotes\n"
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:utf-8 "Footnotes\n")
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("fr"
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:ascii "Notes de bas de page\n"
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:latin1 "Notes de bas de page\n"
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:utf-8 "Notes de bas de page\n"))
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("Listing %d: %s"
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("en"
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:ascii "Listing %d: %s"
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:latin1 "Listing %d: %s"
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:utf-8 "Listing %d: %s")
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("fr"
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:ascii "Programme %d : %s"
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:latin1 "Programme %d : %s"
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:utf-8 "Programme nº %d : %s"))
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("List Of Listings\n"
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("en"
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:ascii "List Of Listings\n"
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:latin1 "List Of Listings\n"
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:utf-8 "List Of Listings\n")
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("fr"
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:ascii "Liste des programmes\n"
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:latin1 "Liste des programmes\n"
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:utf-8 "Liste des programmes\n"))
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("List Of Tables\n"
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("en"
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:ascii "List Of Tables\n"
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:latin1 "List Of Tables\n"
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:utf-8 "List Of Tables\n")
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("fr"
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:ascii "Liste des tableaux\n"
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:latin1 "Liste des tableaux\n"
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:utf-8 "Liste des tableaux\n"))
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("Listing %d: "
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("en"
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:ascii "Listing %d: "
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:latin1 "Listing %d: "
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:utf-8 "Listing %d: ")
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("fr"
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:ascii "Programme %d : "
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:latin1 "Programme %d : "
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:utf-8 "Programme nº %d : "))
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("Table Of Contents\n"
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("en"
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:ascii "Table Of Contents\n"
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:latin1 "Table Of Contents\n"
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:utf-8 "Table Of Contents\n")
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("fr"
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:ascii "Sommaire\n"
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:latin1 "Table des matières\n"
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:utf-8 "Table des matières\n"))
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("Table %d: %s"
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("en"
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:ascii "Table %d: %s"
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:latin1 "Table %d: %s"
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:utf-8 "Table %d: %s")
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("fr"
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:ascii "Tableau %d : %s"
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:latin1 "Tableau %d : %s"
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:utf-8 "Tableau nº %d : %s"))
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("See section %s"
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("en"
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:ascii "See section %s"
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:latin1 "See section %s"
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:utf-8 "See section %s")
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("fr"
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:ascii "cf. section %s"
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:latin1 "cf. section %s"
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:utf-8 "cf. section %s"))
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("Table %d: "
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("en"
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:ascii "Table %d: "
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:latin1 "Table %d: "
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:utf-8 "Table %d: ")
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("fr"
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:ascii "Tableau %d : "
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:latin1 "Tableau %d : "
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:utf-8 "Tableau nº %d : "))
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("Unknown reference"
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("en"
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:ascii "Unknown reference"
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:latin1 "Unknown reference"
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:utf-8 "Unknown reference")
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("fr"
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:ascii "Destination inconnue"
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:latin1 "Référence inconnue"
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:utf-8 "Référence inconnue")))
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"Dictionary for ASCII back-end.
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Alist whose car is the string to translate and cdr is an alist
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whose car is the language string and cdr is a plist whose
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properties are possible charsets and value the translated term.
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It is used as a database for `org-e-ascii--translate'.")
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;;; User Configurable Variables
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(defgroup org-export-e-ascii nil
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"Options for exporting Org mode files to ASCII."
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:tag "Org Export ASCII"
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:group 'org-export)
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(defcustom org-e-ascii-text-width 72
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"Maximum width of exported text.
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This number includes margin size, as set in
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`org-e-ascii-global-margin'."
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:group 'org-export-e-ascii
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:type 'integer)
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(defcustom org-e-ascii-global-margin 0
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"Width of the left margin, in number of characters."
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:group 'org-export-e-ascii
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:type 'integer)
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(defcustom org-e-ascii-inner-margin 2
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"Width of the inner margin, in number of characters.
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Inner margin is applied between each headline."
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:group 'org-export-e-ascii
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:type 'integer)
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(defcustom org-e-ascii-quote-margin 6
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"Width of margin used for quoting text, in characters.
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This margin is applied on both sides of the text."
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:group 'org-export-e-ascii
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:type 'integer)
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(defcustom org-e-ascii-inlinetask-width 30
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"Width of inline tasks, in number of characters.
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This number ignores any margin."
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:group 'org-export-e-ascii
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:type 'integer)
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(defcustom org-e-ascii-headline-spacing '(1 . 2)
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"Number of blank lines inserted around headlines.
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This variable can be set to a cons cell. In that case, its car
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represents the number of blank lines present before headline
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contents whereas its cdr reflects the number of blank lines after
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contents.
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A nil value replicates the number of blank lines found in the
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original Org buffer at the same place."
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:group 'org-export-e-ascii
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:type '(choice
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(const :tag "Replicate original spacing" nil)
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(cons :tag "Set an uniform spacing"
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(integer :tag "Number of blank lines before contents")
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(integer :tag "Number of blank lines after contents"))))
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(defcustom org-e-ascii-charset 'ascii
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"The charset allowed to represent various elements and objects.
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Possible values are:
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`ascii' Only use plain ASCII characters
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`latin1' Include Latin-1 characters
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`utf-8' Use all UTF-8 characters"
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:group 'org-export-e-ascii
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:type '(choice
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(const :tag "ASCII" ascii)
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(const :tag "Latin-1" latin1)
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(const :tag "UTF-8" utf-8)))
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(defcustom org-e-ascii-underline '((ascii ?= ?~ ?-)
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(latin1 ?= ?~ ?-)
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(utf-8 ?═ ?─ ?╌ ?┄ ?┈))
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"Characters for underlining headings in ASCII export.
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Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
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and whose value is a list of characters.
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For each supported charset, this variable associates a sequence
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of underline characters. In a sequence, the characters will be
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used in order for headlines level 1, 2, ... If no character is
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available for a given level, the headline won't be underlined."
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:group 'org-export-e-ascii
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:type '(list
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(cons :tag "Underline characters sequence"
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(const :tag "ASCII charset" ascii)
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(repeat character))
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(cons :tag "Underline characters sequence"
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(const :tag "Latin-1 charset" latin1)
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(repeat character))
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(cons :tag "Underline characters sequence"
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(const :tag "UTF-8 charset" utf-8)
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(repeat character))))
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(defcustom org-e-ascii-bullets '((ascii ?* ?+ ?-)
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(latin1 ?§ ?¶)
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(utf-8 ?◊))
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"Bullet characters for headlines converted to lists in ASCII export.
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Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
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and whose value is a list of characters.
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The first character is used for the first level considered as low
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level, and so on. If there are more levels than characters given
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here, the list will be repeated.
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Note that this variable doesn't affect plain lists
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representation."
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:group 'org-export-e-ascii
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:type '(list
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(cons :tag "Bullet characters for low level headlines"
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(const :tag "ASCII charset" ascii)
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(repeat character))
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(cons :tag "Bullet characters for low level headlines"
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(const :tag "Latin-1 charset" latin1)
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(repeat character))
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(cons :tag "Bullet characters for low level headlines"
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(const :tag "UTF-8 charset" utf-8)
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(repeat character))))
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(defcustom org-e-ascii-links-to-notes t
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"Non-nil means convert links to notes before the next headline.
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When nil, the link will be exported in place. If the line
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becomes long in this way, it will be wrapped."
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:group 'org-export-e-ascii
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:type 'boolean)
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(defcustom org-e-ascii-table-keep-all-vertical-lines nil
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"Non-nil means keep all vertical lines in ASCII tables.
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When nil, vertical lines will be removed except for those needed
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for column grouping."
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:group 'org-export-e-ascii
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:type 'boolean)
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(defcustom org-e-ascii-table-widen-columns t
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"Non-nil means widen narrowed columns for export.
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When nil, narrowed columns will look in ASCII export just like in
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Org mode, i.e. with \"=>\" as ellipsis."
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:group 'org-export-e-ascii
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:type 'boolean)
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(defcustom org-e-ascii-caption-above nil
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"When non-nil, place caption string before the element.
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Otherwise, place it right after it."
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:group 'org-export-e-ascii
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:type 'boolean)
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(defcustom org-e-ascii-verbatim-format "`%s'"
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"Format string used for verbatim text and inline code."
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:group 'org-export-e-ascii
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:type 'string)
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(defcustom org-e-ascii-format-drawer-function nil
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"Function called to format a drawer in ASCII.
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The function must accept two parameters:
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NAME the drawer name, like \"LOGBOOK\"
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CONTENTS the contents of the drawer.
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WIDTH the text width within the drawer.
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The function should return either the string to be exported or
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nil to ignore the drawer.
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For example, the variable could be set to the following function
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in order to mimic default behaviour:
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\(defun org-e-ascii-format-drawer-default \(name contents width\)
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\"Format a drawer element for ASCII export.\"
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contents\)"
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:group 'org-export-e-ascii
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:type 'function)
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(defcustom org-e-ascii-format-inlinetask-function nil
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"Function called to format an inlinetask in ASCII.
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The function must accept six parameters:
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TODO the todo keyword, as a string
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TODO-TYPE the todo type, a symbol among `todo', `done' and nil.
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PRIORITY the inlinetask priority, as a string
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NAME the inlinetask name, as a string.
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TAGS the inlinetask tags, as a string.
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CONTENTS the contents of the inlinetask, as a string.
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The function should return either the string to be exported or
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nil to ignore the inline task.
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For example, the variable could be set to the following function
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in order to mimic default behaviour:
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\(defun org-e-ascii-format-inlinetask-default
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\(todo type priority name tags contents\)
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\"Format an inline task element for ASCII export.\"
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\(let* \(\(utf8p \(eq \(plist-get info :ascii-charset\) 'utf-8\)\)
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\(width org-e-ascii-inlinetask-width\)
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\(org-e-ascii--indent-string
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\(concat
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;; Top line, with an additional blank line if not in UTF-8.
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\(make-string width \(if utf8p ?━ ?_\)\) \"\\n\"
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\(unless utf8p \(concat \(make-string width ? \) \"\\n\"\)\)
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;; Add title. Fill it if wider than inlinetask.
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\(let \(\(title \(org-e-ascii--build-title inlinetask info width\)\)\)
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\(if \(<= \(length title\) width\) title
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\(org-e-ascii--fill-string title width info\)\)\)
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\"\\n\"
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;; If CONTENTS is not empty, insert it along with
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;; a separator.
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\(when \(org-string-nw-p contents\)
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\(concat \(make-string width \(if utf8p ?─ ?-\)\) \"\\n\" contents\)\)
|
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;; Bottom line.
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\(make-string width \(if utf8p ?━ ?_\)\)\)
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;; Flush the inlinetask to the right.
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\(- \(plist-get info :ascii-width\)
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\(plist-get info :ascii-margin\)
|
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\(plist-get info :ascii-inner-margin\)
|
||
\(org-e-ascii--current-text-width inlinetask info\)\)"
|
||
:group 'org-export-e-ascii
|
||
:type 'function)
|
||
|
||
|
||
|
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;;; Internal Functions
|
||
|
||
;; Internal functions fall into three categories.
|
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|
||
;; The first one is about text formatting. The core function is
|
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;; `org-e-ascii--current-text-width', which determines the current
|
||
;; text width allowed to a given element. In other words, it helps
|
||
;; keeping each line width within maximum text width defined in
|
||
;; `org-e-ascii-text-width'. Once this information is known,
|
||
;; `org-e-ascii--fill-string', `org-e-ascii--justify-string',
|
||
;; `org-e-ascii--box-string' and `org-e-ascii--indent-string' can
|
||
;; operate on a given output string.
|
||
|
||
;; The second category contains functions handling elements listings,
|
||
;; triggered by "#+TOC:" keyword. As such, `org-e-ascii--build-toc'
|
||
;; returns a complete table of contents, `org-e-ascii--list-listings'
|
||
;; returns a list of referenceable src-block elements, and
|
||
;; `org-e-ascii--list-tables' does the same for table elements.
|
||
|
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;; The third category includes general helper functions.
|
||
;; `org-e-ascii--build-title' creates the title for a given headline
|
||
;; or inlinetask element. `org-e-ascii--build-caption' returns the
|
||
;; caption string associated to a table or a src-block.
|
||
;; `org-e-ascii--describe-links' creates notes about links for
|
||
;; insertion at the end of a section. It uses
|
||
;; `org-e-ascii--unique-links' to get the list of links to describe.
|
||
;; Eventually, `org-e-ascii--translate' reads `org-e-ascii-dictionary'
|
||
;; to internationalize output.
|
||
|
||
|
||
(defun org-e-ascii--fill-string (s text-width info &optional justify)
|
||
"Fill a string with specified text-width and return it.
|
||
|
||
S is the string being filled. TEXT-WIDTH is an integer
|
||
specifying maximum length of a line. INFO is the plist used as
|
||
a communication channel.
|
||
|
||
Optional argument JUSTIFY can specify any type of justification
|
||
among `left', `center', `right' or `full'. A nil value is
|
||
equivalent to `left'. For a justification that doesn't also fill
|
||
string, see `org-e-ascii--justify-string'.
|
||
|
||
Return nil if S isn't a string."
|
||
;; Don't fill paragraph when break should be preserved.
|
||
(cond ((not (stringp s)) nil)
|
||
((plist-get info :preserve-breaks) s)
|
||
(t (with-temp-buffer
|
||
(let ((fill-column text-width)
|
||
(use-hard-newlines t))
|
||
(insert s)
|
||
(fill-region (point-min) (point-max) justify))
|
||
(buffer-string)))))
|
||
|
||
(defun org-e-ascii--justify-string (s text-width how)
|
||
"Justify string S.
|
||
TEXT-WIDTH is an integer specifying maximum length of a line.
|
||
HOW determines the type of justification: it can be `left',
|
||
`right', `full' or `center'."
|
||
(with-temp-buffer
|
||
(insert s)
|
||
(goto-char (point-min))
|
||
(let ((fill-column text-width))
|
||
(while (< (point) (point-max))
|
||
(justify-current-line how)
|
||
(forward-line)))
|
||
(buffer-string)))
|
||
|
||
(defun org-e-ascii--indent-string (s width)
|
||
"Indent string S by WIDTH white spaces.
|
||
Empty lines are not indented."
|
||
(when (stringp s)
|
||
(replace-regexp-in-string
|
||
"\\(^\\)\\(?:.*\\S-\\)" (make-string width ? ) s nil nil 1)))
|
||
|
||
(defun org-e-ascii--box-string (s info)
|
||
"Return string S with a partial box to its left.
|
||
INFO is a plist used as a communicaton channel."
|
||
(let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
|
||
(format (if utf8p "╭────\n%s\n╰────" ",----\n%s\n`----")
|
||
(replace-regexp-in-string
|
||
"^" (if utf8p "│ " "| ")
|
||
;; Remove last newline character.
|
||
(replace-regexp-in-string "\n[ \t]*\\'" "" s)))))
|
||
|
||
(defun org-e-ascii--current-text-width (element info)
|
||
"Return maximum text width for ELEMENT's contents.
|
||
INFO is a plist used as a communication channel."
|
||
(case (org-element-type element)
|
||
;; Elements with an absolute width: `headline' and `inlinetask'.
|
||
(inlinetask org-e-ascii-inlinetask-width)
|
||
('headline
|
||
(- org-e-ascii-text-width
|
||
(let ((low-level-rank (org-export-low-level-p element info)))
|
||
(if low-level-rank (* low-level-rank 2) org-e-ascii-global-margin))))
|
||
;; Elements with a relative width: store maximum text width in
|
||
;; TOTAL-WIDTH.
|
||
(otherwise
|
||
(let* ((genealogy (cons element (org-export-get-genealogy element info)))
|
||
;; Total width is determined by the presence, or not, of an
|
||
;; inline task among ELEMENT parents.
|
||
(total-width
|
||
(if (loop for parent in genealogy
|
||
thereis (eq (org-element-type parent) 'inlinetask))
|
||
org-e-ascii-inlinetask-width
|
||
;; No inlinetask: Remove global margin from text width.
|
||
(- org-e-ascii-text-width
|
||
org-e-ascii-global-margin
|
||
(let ((parent (org-export-get-parent-headline element info)))
|
||
;; Inner margin doesn't apply to text before first
|
||
;; headline.
|
||
(if (not parent) 0
|
||
(let ((low-level-rank
|
||
(org-export-low-level-p parent info)))
|
||
;; Inner margin doesn't apply to contents of
|
||
;; low level headlines, since they've got their
|
||
;; own indentation mechanism.
|
||
(if low-level-rank (* low-level-rank 2)
|
||
org-e-ascii-inner-margin))))))))
|
||
(- total-width
|
||
;; Each `quote-block', `quote-section' and `verse-block' above
|
||
;; narrows text width by twice the standard margin size.
|
||
(+ (* (loop for parent in genealogy
|
||
when (memq (org-element-type parent)
|
||
'(quote-block quote-section verse-block))
|
||
count parent)
|
||
2 org-e-ascii-quote-margin)
|
||
;; Text width within a plain-list is restricted by
|
||
;; indentation of current item. If that's the case,
|
||
;; compute it with the help of `:structure' property from
|
||
;; parent item, if any.
|
||
(let ((parent-item
|
||
(if (eq (org-element-type element) 'item) element
|
||
(loop for parent in genealogy
|
||
when (eq (org-element-type parent) 'item)
|
||
return parent))))
|
||
(if (not parent-item) 0
|
||
;; Compute indentation offset of the current item,
|
||
;; that is the sum of the difference between its
|
||
;; indentation and the indentation of the top item in
|
||
;; the list and current item bullet's length. Also
|
||
;; remove tag length (for description lists) or bullet
|
||
;; length.
|
||
(let ((struct (org-element-property :structure parent-item))
|
||
(beg-item (org-element-property :begin parent-item)))
|
||
(+ (- (org-list-get-ind beg-item struct)
|
||
(org-list-get-ind
|
||
(org-list-get-top-point struct) struct))
|
||
(length
|
||
(or (org-list-get-tag beg-item struct)
|
||
(org-list-get-bullet beg-item struct)))))))))))))
|
||
|
||
(defun org-e-ascii--build-title
|
||
(element info text-width &optional underline notags)
|
||
"Format ELEMENT title and return it.
|
||
|
||
ELEMENT is either an `headline' or `inlinetask' element. INFO is
|
||
a plist used as a communication channel. TEXT-WIDTH is an
|
||
integer representing the maximum length of a line.
|
||
|
||
When optional argument UNDERLINE is non-nil, underline title,
|
||
without the tags, according to `org-e-ascii-underline'
|
||
specifications.
|
||
|
||
if optional argument NOTAGS is nil, no tags will be added to the
|
||
title."
|
||
(let* ((headlinep (eq (org-element-type element) 'headline))
|
||
(numbers
|
||
;; Numbering is specific to headlines.
|
||
(and headlinep (org-export-numbered-headline-p element info)
|
||
;; All tests passed: build numbering string.
|
||
(concat
|
||
(mapconcat
|
||
#'number-to-string
|
||
(org-export-get-headline-number element info) ".")
|
||
" ")))
|
||
(text (org-export-secondary-string
|
||
(org-element-property :title element) 'e-ascii info))
|
||
(todo
|
||
(and (plist-get info :with-todo-keywords)
|
||
(let ((todo (org-element-property :todo-keyword element)))
|
||
(and todo
|
||
(concat (org-export-secondary-string todo 'e-ascii info)
|
||
" ")))))
|
||
(tags (and (not notags)
|
||
(plist-get info :with-tags)
|
||
(org-element-property :tags element)))
|
||
(priority
|
||
(and (plist-get info :with-priority)
|
||
(concat (org-element-property :priority element) " ")))
|
||
(first-part (concat numbers todo priority text)))
|
||
(concat
|
||
first-part
|
||
;; Align tags, if any.
|
||
(when tags
|
||
(format
|
||
(format " %%%ds"
|
||
(max (- text-width (1+ (length first-part))) (length tags)))
|
||
tags))
|
||
;; Maybe underline text, if ELEMENT type is `headline' and an
|
||
;; underline character has been defined.
|
||
(when (and underline headlinep)
|
||
(let ((under-char
|
||
(nth (1- (org-export-get-relative-level element info))
|
||
(cdr (assq (plist-get info :ascii-charset)
|
||
org-e-ascii-underline)))))
|
||
(and under-char
|
||
(concat "\n"
|
||
(make-string (length first-part) under-char))))))))
|
||
|
||
(defun org-e-ascii--build-caption (element info)
|
||
"Return caption string for ELEMENT, if applicable.
|
||
|
||
INFO is a plist used as a communication channel.
|
||
|
||
The caption string contains the sequence number of ELEMENT if it
|
||
has a name affiliated keyword, along with the real caption, if
|
||
any. Return nil when ELEMENT has no affiliated caption or name
|
||
keyword."
|
||
(let ((caption (org-element-property :caption element))
|
||
(name (org-element-property :name element)))
|
||
(when (or caption name)
|
||
;; Get sequence number of current src-block among every
|
||
;; src-block with either a caption or a name.
|
||
(let ((reference
|
||
(org-export-get-ordinal
|
||
element info nil
|
||
(lambda (el info) (or (org-element-property :caption el)
|
||
(org-element-property :name el)))))
|
||
(title-fmt (org-e-ascii--translate
|
||
(case (org-element-type element)
|
||
(table "Table %d: %s")
|
||
(src-block "Listing %d: %s")) info)))
|
||
(org-e-ascii--fill-string
|
||
(format
|
||
title-fmt reference
|
||
(if (not caption) name
|
||
(org-export-secondary-string (car caption) 'e-ascii info)))
|
||
(org-e-ascii--current-text-width element info) info)))))
|
||
|
||
(defun org-e-ascii--build-toc (info &optional n keyword)
|
||
"Return a table of contents.
|
||
|
||
INFO is a plist used as a communication channel.
|
||
|
||
Optional argument N, when non-nil, is an integer specifying the
|
||
depth of the table.
|
||
|
||
Optional argument KEYWORD specifies the TOC keyword, if any, from
|
||
which the table of contents generation has been initiated."
|
||
(let ((title (org-e-ascii--translate "Table Of Contents\n" info)))
|
||
(concat
|
||
title
|
||
(make-string (1- (length title))
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
|
||
"\n\n"
|
||
(let ((text-width
|
||
(if keyword (org-e-ascii--current-text-width keyword info)
|
||
(- org-e-ascii-text-width org-e-ascii-global-margin))))
|
||
(mapconcat
|
||
(lambda (headline)
|
||
(let* ((level (org-export-get-relative-level headline info))
|
||
(indent (* (1- level) 3)))
|
||
(concat
|
||
(unless (zerop indent) (concat (make-string (1- indent) ?.) " "))
|
||
(org-e-ascii--build-title
|
||
headline info (- text-width indent) nil
|
||
(eq (plist-get info :with-tags) 'not-in-toc)))))
|
||
(org-export-collect-headlines info n) "\n")))))
|
||
|
||
(defun org-e-ascii--list-listings (keyword info)
|
||
"Return a list of listings.
|
||
|
||
KEYWORD is the keyword that initiated the list of listings
|
||
generation. INFO is a plist used as a communication channel."
|
||
(let ((title (org-e-ascii--translate "List Of Listings\n" info)))
|
||
(concat
|
||
title
|
||
(make-string (1- (length title))
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
|
||
"\n\n"
|
||
(let ((text-width
|
||
(if keyword (org-e-ascii--current-text-width keyword info)
|
||
(- org-e-ascii-text-width org-e-ascii-global-margin)))
|
||
;; Use a counter instead of retreiving ordinal of each
|
||
;; src-block.
|
||
(count 0))
|
||
(mapconcat
|
||
(lambda (src-block)
|
||
;; Store initial text so its length can be computed. This is
|
||
;; used to properly align caption right to it in case of
|
||
;; filling (like contents of a description list item).
|
||
(let ((initial-text
|
||
(format (org-e-ascii--translate "Listing %d: " info)
|
||
(incf count))))
|
||
(concat
|
||
initial-text
|
||
(org-trim
|
||
(org-e-ascii--indent-string
|
||
(org-e-ascii--fill-string
|
||
(let ((caption (org-element-property :caption src-block)))
|
||
(if (not caption) (org-element-property :name src-block)
|
||
(org-export-secondary-string
|
||
;; Use short name in priority, if available.
|
||
(or (cdr caption) (car caption)) 'e-ascii info)))
|
||
(- text-width (length initial-text)) info)
|
||
(length initial-text))))))
|
||
(org-export-collect-listings info) "\n")))))
|
||
|
||
(defun org-e-ascii--list-tables (keyword info)
|
||
"Return a list of listings.
|
||
|
||
KEYWORD is the keyword that initiated the list of listings
|
||
generation. INFO is a plist used as a communication channel."
|
||
(let ((title (org-e-ascii--translate "List Of Tables\n" info)))
|
||
(concat
|
||
title
|
||
(make-string (1- (length title))
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
|
||
"\n\n"
|
||
(let ((text-width
|
||
(if keyword (org-e-ascii--current-text-width keyword info)
|
||
(- org-e-ascii-text-width org-e-ascii-global-margin)))
|
||
;; Use a counter instead of retreiving ordinal of each
|
||
;; src-block.
|
||
(count 0))
|
||
(mapconcat
|
||
(lambda (table)
|
||
;; Store initial text so its length can be computed. This is
|
||
;; used to properly align caption right to it in case of
|
||
;; filling (like contents of a description list item).
|
||
(let ((initial-text
|
||
(format (org-e-ascii--translate "Table %d: " info)
|
||
(incf count))))
|
||
(concat
|
||
initial-text
|
||
(org-trim
|
||
(org-e-ascii--indent-string
|
||
(org-e-ascii--fill-string
|
||
(let ((caption (org-element-property :caption table)))
|
||
(if (not caption) (org-element-property :name table)
|
||
;; Use short name in priority, if available.
|
||
(org-export-secondary-string
|
||
(or (cdr caption) (car caption)) 'e-ascii info)))
|
||
(- text-width (length initial-text)) info)
|
||
(length initial-text))))))
|
||
(org-export-collect-tables info) "\n")))))
|
||
|
||
(defun org-e-ascii--unique-links (element info)
|
||
"Return a list of unique link references in ELEMENT.
|
||
|
||
ELEMENT is either an headline element or a section element. INFO
|
||
is a plist used as a communication channel.
|
||
|
||
It covers links that may be found current headline's title, in
|
||
the following section and in any inlinetask's title there."
|
||
(let* (seen
|
||
(unique-link-p
|
||
(function
|
||
;; Return LINK if it wasn't referenced so far, or nil.
|
||
;; Update SEEN links along the way.
|
||
(lambda (link)
|
||
(let ((footprint
|
||
(cons (org-element-property :raw-link link)
|
||
(org-element-contents link))))
|
||
(unless (member footprint seen)
|
||
(push footprint seen) link)))))
|
||
(harvest-links-in-title
|
||
(function
|
||
;; Return a list of all unique links in ELEMENT. ELEMENT
|
||
;; may be an headline or an inlinetask element.
|
||
(lambda (element)
|
||
(let (acc)
|
||
(dolist (obj (org-element-property :title element) acc)
|
||
(when (eq (org-element-type obj) 'link)
|
||
(let ((link (funcall unique-link-p obj)))
|
||
(and link (push link acc)))))))))
|
||
;; Retrieve HEADLINE's section, if it exists.
|
||
(section (if (eq (org-element-type element) 'section) element
|
||
(let ((sec (car (org-element-contents element))))
|
||
(and (eq (org-element-type sec) 'section) sec))))
|
||
(headline (if (eq (org-element-type element) 'headline) element
|
||
(org-export-get-parent-headline element info))))
|
||
(append
|
||
;; Links that may be in HEADLINE's title.
|
||
(funcall harvest-links-in-title headline)
|
||
;; Get all links in SECTION.
|
||
(org-element-map
|
||
section 'link (lambda (link) (funcall unique-link-p link)) info))))
|
||
|
||
(defun org-e-ascii--describe-links (links width info)
|
||
"Return a string describing a list of links.
|
||
|
||
LINKS is a list of link type objects, as returned by
|
||
`org-e-ascii--unique-links'. WIDTH is the text width allowed for
|
||
the output string. INFO is a plist used as a communication
|
||
channel."
|
||
(mapconcat
|
||
(lambda (link)
|
||
(let ((type (org-element-property :type link))
|
||
(anchor (let ((desc (org-element-contents link)))
|
||
(if (not desc) (org-element-property :raw-link link)
|
||
(org-export-secondary-string desc 'e-ascii info)))))
|
||
(cond
|
||
;; Coderefs, radio links and fuzzy links are ignored.
|
||
((member type '("coderef" "radio" "fuzzy")) nil)
|
||
;; Id and custom-id links: Headlines refer to their numbering.
|
||
((member type '("custom-id" "id"))
|
||
(let ((dest (org-export-resolve-id-link link info)))
|
||
(concat
|
||
(org-e-ascii--fill-string
|
||
(format
|
||
"[%s] %s"
|
||
anchor
|
||
(if (not dest) (org-e-ascii--translate "Unknown reference" info)
|
||
(format
|
||
(org-e-ascii--translate "See section %s" info)
|
||
(mapconcat 'number-to-string
|
||
(org-export-get-headline-number dest info) "."))))
|
||
width info) "\n\n")))
|
||
;; Do not add a link that cannot be resolved and doesn't have
|
||
;; any description: destination is already visible in the
|
||
;; paragraph.
|
||
((not (org-element-contents link)) nil)
|
||
(t
|
||
(concat
|
||
(org-e-ascii--fill-string
|
||
(format "[%s] %s" anchor (org-element-property :raw-link link))
|
||
width info)
|
||
"\n\n")))))
|
||
links ""))
|
||
|
||
|
||
|
||
;;; Template
|
||
|
||
(defun org-e-ascii-template--document-title (info)
|
||
"Return document title, as a string.
|
||
INFO is a plist used as a communication channel."
|
||
(let ((text-width org-e-ascii-text-width)
|
||
(title (org-export-secondary-string
|
||
(plist-get info :title) 'e-ascii info))
|
||
(author
|
||
(and (plist-get info :with-author)
|
||
(let ((auth (plist-get info :author)))
|
||
(and auth (org-export-secondary-string auth 'e-ascii info)))))
|
||
(email
|
||
(and (plist-get info :with-email)
|
||
(org-export-secondary-string
|
||
(plist-get info :email) 'e-ascii info)))
|
||
(date (plist-get info :date)))
|
||
;; There are two types of title blocks depending on the presence
|
||
;; of a title to display.
|
||
(if (string= title "")
|
||
;; Title block without a title. DATE is positioned at the top
|
||
;; right of the document, AUTHOR to the top left and EMAIL
|
||
;; just below.
|
||
(cond
|
||
((and (org-string-nw-p date) (org-string-nw-p author))
|
||
(concat
|
||
author
|
||
(make-string (- text-width (length date) (length author)) ? )
|
||
date
|
||
(when (org-string-nw-p email) (concat "\n" email))
|
||
"\n\n\n"))
|
||
((and (org-string-nw-p date) (org-string-nw-p email))
|
||
(concat
|
||
email
|
||
(make-string (- text-width (length date) (length email)) ? )
|
||
date "\n\n\n"))
|
||
((org-string-nw-p date)
|
||
(concat
|
||
(org-e-ascii--justify-string date text-width 'right)
|
||
"\n\n\n"))
|
||
((and (org-string-nw-p author) (org-string-nw-p email))
|
||
(concat author "\n" email "\n\n\n"))
|
||
((org-string-nw-p author) (concat author "\n\n\n"))
|
||
((org-string-nw-p email) (concat email "\n\n\n")))
|
||
;; Title block with a title. Document's TITLE, along with the
|
||
;; AUTHOR and its EMAIL are both overlined and an underlined,
|
||
;; centered. Date is just below, also centered.
|
||
(let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
|
||
;; Format TITLE. It may be filled if it is too wide,
|
||
;; that is wider than the two thirds of the total width.
|
||
(title-len (min (length title) (/ (* 2 text-width) 3)))
|
||
(formatted-title (org-e-ascii--fill-string title title-len info))
|
||
(line
|
||
(make-string
|
||
(min (+ (max title-len (length author) (length email)) 2)
|
||
text-width) (if utf8p ?━ ?_))))
|
||
(org-e-ascii--justify-string
|
||
(concat line "\n"
|
||
(unless utf8p "\n")
|
||
(upcase formatted-title)
|
||
(cond
|
||
((and (org-string-nw-p author) (org-string-nw-p email))
|
||
(concat (if utf8p "\n\n\n" "\n\n") author "\n" email))
|
||
((org-string-nw-p author)
|
||
(concat (if utf8p "\n\n\n" "\n\n") author))
|
||
((org-string-nw-p email)
|
||
(concat (if utf8p "\n\n\n" "\n\n") email)))
|
||
"\n" line
|
||
(when (org-string-nw-p date) (concat "\n\n\n" date))
|
||
"\n\n\n") text-width 'center)))))
|
||
|
||
(defun org-e-ascii-template (contents info)
|
||
"Return complete document string after ASCII conversion.
|
||
CONTENTS is the transcoded contents string. INFO is a plist
|
||
holding export options."
|
||
(org-element-normalize-string
|
||
(org-e-ascii--indent-string
|
||
(let ((text-width (- org-e-ascii-text-width org-e-ascii-global-margin)))
|
||
;; 1. Build title block.
|
||
(concat
|
||
(org-e-ascii-template--document-title info)
|
||
;; 2. Table of contents.
|
||
(let ((depth (plist-get info :with-toc)))
|
||
(when depth
|
||
(concat
|
||
(org-e-ascii--build-toc info (and (wholenump depth) depth))
|
||
"\n\n\n")))
|
||
;; 3. Document's body.
|
||
contents
|
||
;; 4. Footnote definitions.
|
||
(let ((definitions (org-export-collect-footnote-definitions
|
||
(plist-get info :parse-tree) info))
|
||
;; Insert full links right inside the footnote definition
|
||
;; as they have no chance to be inserted later.
|
||
(org-e-ascii-links-to-notes nil))
|
||
(when definitions
|
||
(concat
|
||
"\n\n\n"
|
||
(let ((title (org-e-ascii--translate "Footnotes\n" info)))
|
||
(concat
|
||
title
|
||
(make-string
|
||
(1- (length title))
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))))
|
||
"\n\n"
|
||
(mapconcat
|
||
(lambda (ref)
|
||
(let ((id (format "[%s] " (car ref))))
|
||
;; Distinguish between inline definitions and
|
||
;; full-fledged definitions.
|
||
(org-trim
|
||
(let ((def (nth 2 ref)))
|
||
(if (eq (org-element-type def) 'org-data)
|
||
;; Full-fledged definition: footnote ID is
|
||
;; inserted inside the first parsed paragraph
|
||
;; (FIRST), if any, to be sure filling will
|
||
;; take it into consideration.
|
||
(let ((first (car (org-element-contents def))))
|
||
(if (not (eq (org-element-type first) 'paragraph))
|
||
(concat id "\n" (org-export-data def 'e-ascii info))
|
||
(push id (nthcdr 2 first))
|
||
(org-export-data def 'e-ascii info)))
|
||
;; Fill paragraph once footnote ID is inserted in
|
||
;; order to have a correct length for first line.
|
||
(org-e-ascii--fill-string
|
||
(concat id (org-export-secondary-string def 'e-ascii info))
|
||
text-width info))))))
|
||
definitions "\n\n"))))
|
||
;; 5. Creator. Ignore `comment' value as there are no comments in
|
||
;; ASCII. Justify it to the bottom right.
|
||
(let ((creator-info (plist-get info :with-creator)))
|
||
(unless (or (not creator-info) (eq creator-info 'comment))
|
||
(concat
|
||
"\n\n\n"
|
||
(org-e-ascii--fill-string
|
||
(plist-get info :creator) text-width info 'right))))))
|
||
org-e-ascii-global-margin)))
|
||
|
||
(defun org-e-ascii--translate (s info)
|
||
"Translate string S.
|
||
|
||
INFO is a plist used as a communication channel.
|
||
|
||
Translation depends on `:language' property and allowed charset.
|
||
If no translation in found for a given language and a given
|
||
charset, fall-back to S."
|
||
(let* ((charset (intern (format ":%s" (plist-get info :ascii-charset))))
|
||
(lang (plist-get info :language))
|
||
(translations (cdr (assoc s org-e-ascii-dictionary))))
|
||
(or (plist-get (cdr (assoc lang translations)) charset) s)))
|
||
|
||
|
||
|
||
;;; Transcode Functions
|
||
|
||
;;;; Babel Call
|
||
|
||
;; Babel Calls are ignored.
|
||
|
||
|
||
;;;; Center Block
|
||
|
||
(defun org-e-ascii-center-block (center-block contents info)
|
||
"Transcode a CENTER-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
(org-e-ascii--justify-string
|
||
contents (org-e-ascii--current-text-width center-block info) 'center))
|
||
|
||
|
||
;;;; Comment
|
||
|
||
;; Comments are ignored.
|
||
|
||
|
||
;;;; Comment Block
|
||
|
||
;; Comment Blocks are ignored.
|
||
|
||
|
||
;;;; Drawer
|
||
|
||
(defun org-e-ascii-drawer (drawer contents info)
|
||
"Transcode a DRAWER element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
(let ((name (org-element-property :drawer-name drawer))
|
||
(width (org-e-ascii--current-text-width drawer info)))
|
||
(if (functionp org-e-ascii-format-drawer-function)
|
||
(funcall org-e-ascii-format-drawer-function name contents width)
|
||
;; If there's no user defined function: simply
|
||
;; display contents of the drawer.
|
||
contents)))
|
||
|
||
|
||
;;;; Dynamic Block
|
||
|
||
(defun org-e-ascii-dynamic-block (dynamic-block contents info)
|
||
"Transcode a DYNAMIC-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information. See
|
||
`org-export-data'."
|
||
contents)
|
||
|
||
|
||
;;;; Emphasis
|
||
|
||
(defun org-e-ascii-emphasis (emphasis contents info)
|
||
"Transcode EMPHASIS from Org to ASCII.
|
||
CONTENTS is the contents of the emphasized text. INFO is a plist
|
||
holding contextual information.."
|
||
(let ((marker (org-element-property :marker emphasis)))
|
||
;; Leave emphasis markers as-is.
|
||
(concat marker contents marker)))
|
||
|
||
|
||
;;;; Entity
|
||
|
||
(defun org-e-ascii-entity (entity contents info)
|
||
"Transcode an ENTITY object from Org to ASCII.
|
||
CONTENTS are the definition itself. INFO is a plist holding
|
||
contextual information."
|
||
(org-element-property
|
||
(intern (concat ":" (symbol-name (plist-get info :ascii-charset))))
|
||
entity))
|
||
|
||
|
||
;;;; Example Block
|
||
|
||
(defun org-e-ascii-example-block (example-block contents info)
|
||
"Transcode a EXAMPLE-BLOCK element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(org-e-ascii--box-string
|
||
(org-export-format-code-default example-block info) info))
|
||
|
||
|
||
;;;; Export Snippet
|
||
|
||
(defun org-e-ascii-export-snippet (export-snippet contents info)
|
||
"Transcode a EXPORT-SNIPPET object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(when (eq (org-export-snippet-backend export-snippet) 'e-ascii)
|
||
(org-element-property :value export-snippet)))
|
||
|
||
|
||
;;;; Export Block
|
||
|
||
(defun org-e-ascii-export-block (export-block contents info)
|
||
"Transcode a EXPORT-BLOCK element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(when (string= (org-element-property :type export-block) "ascii")
|
||
(org-remove-indentation (org-element-property :value export-block))))
|
||
|
||
|
||
;;;; Fixed Width
|
||
|
||
(defun org-e-ascii-fixed-width (fixed-width contents info)
|
||
"Transcode a FIXED-WIDTH element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(org-e-ascii--box-string
|
||
(replace-regexp-in-string
|
||
"^[ \t]*: ?" "" (org-element-property :value fixed-width)) info))
|
||
|
||
|
||
;;;; Footnote Definition
|
||
|
||
;; Footnote Definitions are ignored. They are compiled at the end of
|
||
;; the document, by `org-e-ascii-template'.
|
||
|
||
|
||
;;;; Footnote Reference
|
||
|
||
(defun org-e-ascii-footnote-reference (footnote-reference contents info)
|
||
"Transcode a FOOTNOTE-REFERENCE element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(format "[%s]" (org-export-get-footnote-number footnote-reference info)))
|
||
|
||
|
||
;;;; Headline
|
||
|
||
(defun org-e-ascii-headline (headline contents info)
|
||
"Transcode an HEADLINE element from Org to ASCII.
|
||
CONTENTS holds the contents of the headline. INFO is a plist
|
||
holding contextual information."
|
||
;; Don't export footnote section, which will be handled at the end
|
||
;; of the template.
|
||
(unless (org-element-property :footnote-section-p headline)
|
||
(let* ((low-level-rank (org-export-low-level-p headline info))
|
||
(width (org-e-ascii--current-text-width headline info))
|
||
;; Blank lines between headline and its contents.
|
||
;; `org-e-ascii-headline-spacing', when set, overwrites
|
||
;; original buffer's spacing.
|
||
(pre-blanks
|
||
(make-string
|
||
(if org-e-ascii-headline-spacing (car org-e-ascii-headline-spacing)
|
||
(org-element-property :pre-blank headline)) ?\n))
|
||
;; Even if HEADLINE has no section, there might be some
|
||
;; links in its title that we shouldn't forget to describe.
|
||
(links
|
||
(unless (eq (caar (org-element-contents headline)) 'section)
|
||
(org-e-ascii--describe-links
|
||
(org-e-ascii--unique-links headline info) width info))))
|
||
;; Deep subtree: export it as a list item.
|
||
(if low-level-rank
|
||
(concat
|
||
;; Bullet.
|
||
(let ((bullets (cdr (assq (plist-get info :ascii-charset)
|
||
org-e-ascii-bullets))))
|
||
(char-to-string
|
||
(nth (mod (1- low-level-rank) (length bullets)) bullets)))
|
||
" "
|
||
;; Title.
|
||
(org-e-ascii--build-title headline info width) "\n"
|
||
;; Contents, indented by length of bullet.
|
||
pre-blanks
|
||
(org-e-ascii--indent-string
|
||
(concat contents
|
||
(when (org-string-nw-p links) (concat "\n\n" links)))
|
||
2))
|
||
;; Else: Standard headline.
|
||
(concat
|
||
(org-e-ascii--build-title headline info width 'underline)
|
||
"\n" pre-blanks
|
||
(concat (when (org-string-nw-p links) links) contents))))))
|
||
|
||
|
||
;;;; Horizontal Rule
|
||
|
||
(defun org-e-ascii-horizontal-rule (horizontal-rule contents info)
|
||
"Transcode an HORIZONTAL-RULE object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(let ((attr
|
||
(read
|
||
(format
|
||
"(%s)"
|
||
(mapconcat
|
||
#'identity
|
||
(org-element-property :attr_ascii horizontal-rule)
|
||
" ")))))
|
||
(make-string (or (and (wholenump (plist-get attr :width))
|
||
(plist-get attr :width))
|
||
(org-e-ascii--current-text-width horizontal-rule info))
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?― ?-))))
|
||
|
||
|
||
;;;; Inline Babel Call
|
||
|
||
;; Inline Babel Calls are ignored.
|
||
|
||
|
||
;;;; Inline Src Block
|
||
|
||
(defun org-e-ascii-inline-src-block (inline-src-block contents info)
|
||
"Transcode an INLINE-SRC-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the item. INFO is a plist holding
|
||
contextual information."
|
||
(format org-e-ascii-verbatim-format
|
||
(org-element-property :value inline-src-block)))
|
||
|
||
|
||
;;;; Inlinetask
|
||
|
||
(defun org-e-ascii-inlinetask (inlinetask contents info)
|
||
"Transcode an INLINETASK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
(let ((width (org-e-ascii--current-text-width inlinetask info))
|
||
(title (org-export-secondary-string
|
||
(org-element-property :title inlinetask) 'e-ascii info))
|
||
(todo (and (plist-get info :with-todo-keywords)
|
||
(let ((todo (org-element-property
|
||
:todo-keyword inlinetask)))
|
||
(and todo
|
||
(org-export-secondary-string todo 'e-ascii info)))))
|
||
(todo-type (org-element-property :todo-type inlinetask))
|
||
(tags (and (plist-get info :with-tags)
|
||
(org-element-property :tags inlinetask)))
|
||
(priority (and (plist-get info :with-priority)
|
||
(org-element-property :priority inlinetask))))
|
||
;; If `org-e-ascii-format-inlinetask-function' is provided, call it
|
||
;; with appropriate arguments.
|
||
(if (functionp org-e-ascii-format-inlinetask-function)
|
||
(funcall org-e-ascii-format-inlinetask-function
|
||
todo todo-type priority title tags contents width)
|
||
;; Otherwise, use a default template.
|
||
(let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
|
||
(org-e-ascii--indent-string
|
||
(concat
|
||
;; Top line, with an additional blank line if not in UTF-8.
|
||
(make-string width (if utf8p ?━ ?_)) "\n"
|
||
(unless utf8p (concat (make-string width ? ) "\n"))
|
||
;; Add title. Fill it if wider than inlinetask.
|
||
(let ((title (org-e-ascii--build-title inlinetask info width)))
|
||
(if (<= (length title) width) title
|
||
(org-e-ascii--fill-string title width info)))
|
||
"\n"
|
||
;; If CONTENTS is not empty, insert it along with
|
||
;; a separator.
|
||
(when (org-string-nw-p contents)
|
||
(concat (make-string width (if utf8p ?─ ?-)) "\n" contents))
|
||
;; Bottom line.
|
||
(make-string width (if utf8p ?━ ?_)))
|
||
;; Flush the inlinetask to the right.
|
||
(- org-e-ascii-text-width org-e-ascii-global-margin
|
||
(if (not (org-export-get-parent-headline inlinetask info)) 0
|
||
org-e-ascii-inner-margin)
|
||
(org-e-ascii--current-text-width inlinetask info)))))))
|
||
|
||
|
||
;;;; Item
|
||
|
||
(defun org-e-ascii-item (item contents info)
|
||
"Transcode an ITEM element from Org to ASCII.
|
||
CONTENTS holds the contents of the item. INFO is a plist holding
|
||
contextual information."
|
||
(let ((bullet
|
||
;; First parent of ITEM is always the plain-list. Get
|
||
;; `:type' property from it.
|
||
(org-list-bullet-string
|
||
(case (org-element-property :type (org-export-get-parent item info))
|
||
(descriptive
|
||
(concat
|
||
(org-export-secondary-string
|
||
(org-element-property :tag item) 'e-ascii info) ": "))
|
||
(ordered
|
||
;; Return correct number for ITEM, paying attention to
|
||
;; counters.
|
||
(let* ((struct (org-element-property :structure item))
|
||
(bul (org-element-property :bullet item))
|
||
(num
|
||
(number-to-string
|
||
(car (last (org-list-get-item-number
|
||
(org-element-property :begin item)
|
||
struct
|
||
(org-list-prevs-alist struct)
|
||
(org-list-parents-alist struct)))))))
|
||
(replace-regexp-in-string "[0-9]+" num bul)))
|
||
(t (let ((bul (org-element-property :bullet item)))
|
||
;; Change bullets into more visible form if UTF-8 is active.
|
||
(if (not (eq (plist-get info :ascii-charset) 'utf-8)) bul
|
||
(replace-regexp-in-string
|
||
"-" "•"
|
||
(replace-regexp-in-string
|
||
"+" "⁃"
|
||
(replace-regexp-in-string "*" "‣" bul))))))))))
|
||
(concat
|
||
bullet
|
||
;; Contents: Pay attention to indentation. Note: check-boxes are
|
||
;; already taken care of at the paragraph level so they don't
|
||
;; interfere with indentation.
|
||
(let ((contents (org-e-ascii--indent-string contents (length bullet))))
|
||
(if (eq (caar (org-element-contents item)) 'paragraph)
|
||
(org-trim contents)
|
||
(concat "\n" contents))))))
|
||
|
||
|
||
;;;; Keyword
|
||
|
||
(defun org-e-ascii-keyword (keyword contents info)
|
||
"Transcode a KEYWORD element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(let ((key (org-element-property :key keyword))
|
||
(value (org-element-property :value keyword)))
|
||
(cond
|
||
((string= key "ASCII") value)
|
||
((string= key "TOC")
|
||
(let ((value (downcase value)))
|
||
(cond
|
||
((string-match "\\<headlines\\>" value)
|
||
(let ((depth (or (and (string-match "[0-9]+" value)
|
||
(string-to-number (match-string 0 value)))
|
||
(plist-get info :with-toc))))
|
||
(org-e-ascii--build-toc
|
||
info (and (wholenump depth) depth) keyword)))
|
||
((string= "tables" value)
|
||
(org-e-ascii--list-tables keyword info))
|
||
((string= "listings" value)
|
||
(org-e-ascii--list-listings keyword info))))))))
|
||
|
||
|
||
;;;; Latex Environment
|
||
|
||
(defun org-e-ascii-latex-environment (latex-environment contents info)
|
||
"Transcode a LATEX-ENVIRONMENT element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(org-remove-indentation (org-element-property :value latex-environment)))
|
||
|
||
|
||
;;;; Latex Fragment
|
||
|
||
(defun org-e-ascii-latex-fragment (latex-fragment contents info)
|
||
"Transcode a LATEX-FRAGMENT object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(org-element-property :value latex-fragment))
|
||
|
||
|
||
;;;; Line Break
|
||
|
||
(defun org-e-ascii-line-break (line-break contents info)
|
||
"Transcode a LINE-BREAK object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information." hard-newline)
|
||
|
||
|
||
;;;; Link
|
||
|
||
(defun org-e-ascii-link (link desc info)
|
||
"Transcode a LINK object from Org to ASCII.
|
||
|
||
DESC is the description part of the link, or the empty string.
|
||
INFO is a plist holding contextual information."
|
||
(let ((raw-link (org-element-property :raw-link link))
|
||
(type (org-element-property :type link)))
|
||
(cond
|
||
((string= type "coderef")
|
||
(let ((ref (org-element-property :path link)))
|
||
(format (org-export-get-coderef-format ref desc)
|
||
(org-export-resolve-coderef ref info))))
|
||
;; Do not apply a special syntax on radio links. Though, parse
|
||
;; and transcode path to have a proper display of contents.
|
||
((string= type "radio")
|
||
(org-export-secondary-string
|
||
(org-element-parse-secondary-string
|
||
(org-element-property :path link)
|
||
(cdr (assq 'radio-target org-element-object-restrictions)))
|
||
'e-ascii info))
|
||
;; Do not apply a special syntax on fuzzy links pointing to
|
||
;; targets.
|
||
((string= type "fuzzy")
|
||
(let ((destination (org-export-resolve-fuzzy-link link info)))
|
||
;; Ignore invisible "#+target: path".
|
||
(unless (eq (org-element-type destination) 'keyword)
|
||
(if (org-string-nw-p desc) desc
|
||
(when destination
|
||
(let ((number (org-export-get-ordinal destination info)))
|
||
(when number
|
||
(if (atom number) (number-to-string number)
|
||
(mapconcat 'number-to-string number ".")))))))))
|
||
(t
|
||
(if (not (org-string-nw-p desc)) (format "[%s]" raw-link)
|
||
(concat
|
||
(format "[%s]" desc)
|
||
(unless org-e-ascii-links-to-notes (format " (%s)" raw-link))))))))
|
||
|
||
|
||
;;;; Macro
|
||
|
||
(defun org-e-ascii-macro (macro contents info)
|
||
"Transcode a MACRO element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(org-export-expand-macro macro info))
|
||
|
||
|
||
;;;; Paragraph
|
||
|
||
(defun org-e-ascii-paragraph (paragraph contents info)
|
||
"Transcode a PARAGRAPH element from Org to ASCII.
|
||
CONTENTS is the contents of the paragraph, as a string. INFO is
|
||
the plist used as a communication channel."
|
||
(org-e-ascii--fill-string
|
||
(let ((parent (org-export-get-parent paragraph info)))
|
||
;; If PARAGRAPH is the first one in a list element, be sure to
|
||
;; add the check-box in front of it, before any filling. Later,
|
||
;; it would interfere with line width.
|
||
(if (and (eq (org-element-type parent) 'item)
|
||
(equal (car (org-element-contents parent)) paragraph))
|
||
(let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
|
||
(concat (case (org-element-property :checkbox parent)
|
||
(on (if utf8p "☑ " "[X] "))
|
||
(off (if utf8p "☐ " "[ ] "))
|
||
(trans (if utf8p "☒ " "[-] ")))
|
||
contents))
|
||
contents))
|
||
(org-e-ascii--current-text-width paragraph info) info))
|
||
|
||
|
||
;;;; Plain List
|
||
|
||
(defun org-e-ascii-plain-list (plain-list contents info)
|
||
"Transcode a PLAIN-LIST element from Org to ASCII.
|
||
CONTENTS is the contents of the list. INFO is a plist holding
|
||
contextual information."
|
||
contents)
|
||
|
||
|
||
;;;; Plain Text
|
||
|
||
(defun org-e-ascii-plain-text (text info)
|
||
"Transcode a TEXT string from Org to ASCII.
|
||
INFO is a plist used as a communication channel."
|
||
(if (not (and (eq (plist-get info :ascii-charset) 'utf-8)
|
||
(plist-get info :with-special-strings)))
|
||
text
|
||
;; Usual replacements in utf-8 with proper option set.
|
||
(replace-regexp-in-string
|
||
"\\.\\.\\." "…"
|
||
(replace-regexp-in-string
|
||
"--" "–"
|
||
(replace-regexp-in-string "---" "—" text)))))
|
||
|
||
|
||
;;;; Property Drawer
|
||
|
||
(defun org-e-ascii-property-drawer (property-drawer contents info)
|
||
"Transcode a PROPERTY-DRAWER element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist used as a communication
|
||
channel."
|
||
;; The property drawer isn't exported but we want separating blank
|
||
;; lines nonetheless.
|
||
"")
|
||
|
||
|
||
;;;; Quote Block
|
||
|
||
(defun org-e-ascii-quote-block (quote-block contents info)
|
||
"Transcode a QUOTE-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
(let ((width (org-e-ascii--current-text-width quote-block info)))
|
||
(org-e-ascii--indent-string
|
||
(org-remove-indentation
|
||
(org-e-ascii--fill-string contents width info))
|
||
org-e-ascii-quote-margin)))
|
||
|
||
|
||
;;;; Quote Section
|
||
|
||
(defun org-e-ascii-quote-section (quote-section contents info)
|
||
"Transcode a QUOTE-SECTION element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(let ((width (org-e-ascii--current-text-width quote-section info))
|
||
(value
|
||
(org-export-secondary-string
|
||
(org-remove-indentation
|
||
(org-element-property :value quote-section)) 'e-ascii info)))
|
||
(org-e-ascii--indent-string
|
||
value
|
||
(+ org-e-ascii-quote-margin
|
||
;; Don't apply inner margin if parent headline is low level.
|
||
(let ((headline (org-export-get-parent-headline quote-section info)))
|
||
(if (org-export-low-level-p headline info) 0
|
||
org-e-ascii-inner-margin))))))
|
||
|
||
|
||
;;;; Radio Target
|
||
|
||
(defun org-e-ascii-radio-target (radio-target contents info)
|
||
"Transcode a RADIO-TARGET object from Org to ASCII.
|
||
CONTENTS is the contents of the target. INFO is a plist holding
|
||
contextual information."
|
||
contents)
|
||
|
||
;;;; Section
|
||
|
||
(defun org-e-ascii-section (section contents info)
|
||
"Transcode a SECTION element from Org to ASCII.
|
||
CONTENTS is the contents of the section. INFO is a plist holding
|
||
contextual information."
|
||
(org-e-ascii--indent-string
|
||
(concat
|
||
contents
|
||
(when org-e-ascii-links-to-notes
|
||
;; Add list of links at the end of SECTION.
|
||
(let ((links (org-e-ascii--describe-links
|
||
(org-e-ascii--unique-links section info)
|
||
(org-e-ascii--current-text-width section info) info)))
|
||
;; Separate list of links and section contents.
|
||
(when (org-string-nw-p links) (concat "\n\n" links)))))
|
||
;; Do not apply inner margin if parent headline is low level.
|
||
(let ((headline (org-export-get-parent-headline section info)))
|
||
(if (or (not headline) (org-export-low-level-p headline info)) 0
|
||
org-e-ascii-inner-margin))))
|
||
|
||
|
||
;;;; Special Block
|
||
|
||
(defun org-e-ascii-special-block (special-block contents info)
|
||
"Transcode a SPECIAL-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
contents)
|
||
|
||
|
||
;;;; Src Block
|
||
|
||
(defun org-e-ascii-src-block (src-block contents info)
|
||
"Transcode a SRC-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the item. INFO is a plist holding
|
||
contextual information."
|
||
(let ((caption (org-e-ascii--build-caption src-block info)))
|
||
(concat
|
||
(when (and caption org-e-ascii-caption-above) (concat caption "\n"))
|
||
(org-e-ascii--box-string
|
||
(org-export-format-code-default src-block info) info)
|
||
(when (and caption (not org-e-ascii-caption-above))
|
||
(concat "\n" caption)))))
|
||
|
||
;;;; Statistics Cookie
|
||
|
||
(defun org-e-ascii-statistics-cookie (statistics-cookie contents info)
|
||
"Transcode a STATISTICS-COOKIE object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(org-element-property :value statistics-cookie))
|
||
|
||
|
||
;;;; Subscript
|
||
|
||
(defun org-e-ascii-subscript (subscript contents info)
|
||
"Transcode a SUBSCRIPT object from Org to ASCII.
|
||
CONTENTS is the contents of the object. INFO is a plist holding
|
||
contextual information."
|
||
(if (org-element-property :use-brackets-p subscript)
|
||
(format "_{%s}" contents)
|
||
(format "_%s" contents)))
|
||
|
||
|
||
;;;; Superscript
|
||
|
||
(defun org-e-ascii-superscript (superscript contents info)
|
||
"Transcode a SUPERSCRIPT object from Org to ASCII.
|
||
CONTENTS is the contents of the object. INFO is a plist holding
|
||
contextual information."
|
||
(if (org-element-property :use-brackets-p superscript)
|
||
(format "_{%s}" contents)
|
||
(format "_%s" contents)))
|
||
|
||
|
||
;;;; Table
|
||
|
||
(defun org-e-ascii-table (table contents info)
|
||
"Transcode a TABLE element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(let ((caption (org-e-ascii--build-caption table info)))
|
||
(concat
|
||
;; Possibly add a caption string above.
|
||
(when (and caption org-e-ascii-caption-above) (concat caption "\n"))
|
||
;; Insert table. Note: "table.el" tables are left unmodified.
|
||
(if (eq (org-element-property :type table) 'org) contents
|
||
(org-remove-indentation (org-element-property :value table)))
|
||
;; Possible add a caption string below.
|
||
(when (and caption (not org-e-ascii-caption-above))
|
||
(concat "\n" caption)))))
|
||
|
||
|
||
;;;; Table Cell
|
||
|
||
|
||
(defun org-e-ascii--table-cell-width (table-cell info)
|
||
"Return width of TABLE-CELL.
|
||
|
||
Width of a cell is determined either by a width cookie in the
|
||
same column as the cell, or by the length of its contents.
|
||
|
||
When `org-e-ascii-table-widen-columns' is non-nil, width cookies
|
||
are ignored. "
|
||
(or (and (not org-e-ascii-table-widen-columns)
|
||
(org-export-table-cell-width table-cell info))
|
||
(let* ((max-width 0)
|
||
(table (org-export-get-parent-table table-cell info))
|
||
(specialp (org-export-table-has-special-column-p table))
|
||
(col (cdr (org-export-table-cell-address table-cell info))))
|
||
(org-element-map
|
||
table 'table-row
|
||
(lambda (row)
|
||
(setq max-width
|
||
(max (length
|
||
(org-export-data
|
||
(elt (if specialp (car (org-element-contents row))
|
||
(org-element-contents row))
|
||
col)
|
||
(plist-get info :back-end) info))
|
||
max-width))))
|
||
max-width)))
|
||
|
||
(defun org-e-ascii-table-cell (table-cell contents info)
|
||
"Transcode a TABLE-CELL object from Org to ASCII.
|
||
CONTENTS is the cell contents. INFO is a plist used as
|
||
a communication channel."
|
||
;; Determine column width. When `org-e-ascii-table-widen-columns'
|
||
;; is nil and some width cookie has set it, use that value.
|
||
;; Otherwise, compute the maximum width among transcoded data of
|
||
;; each cell in the column.
|
||
(let ((width (org-e-ascii--table-cell-width table-cell info)))
|
||
;; When contents are too large, truncate them.
|
||
(unless (or org-e-ascii-table-widen-columns (<= (length contents) width))
|
||
(setq contents (concat (substring contents 0 (- width 2)) "=>")))
|
||
;; Align contents correctly within the cell.
|
||
(let* ((indent-tabs-mode nil)
|
||
(data
|
||
(when contents
|
||
(org-e-ascii--justify-string
|
||
contents width
|
||
(org-export-table-cell-alignment table-cell info)))))
|
||
(setq contents (concat data (make-string (- width (length data)) ? ))))
|
||
;; Return cell.
|
||
(concat (format " %s " contents)
|
||
(when (memq 'right (org-export-table-cell-borders table-cell info))
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) "│" "|")))))
|
||
|
||
|
||
;;;; Table Row
|
||
|
||
(defun org-e-ascii-table-row (table-row contents info)
|
||
"Transcode a TABLE-ROW element from Org to ASCII.
|
||
CONTENTS is the row contents. INFO is a plist used as
|
||
a communication channel."
|
||
(when (eq (org-element-property :type table-row) 'standard)
|
||
(let ((build-hline
|
||
(function
|
||
(lambda (lcorner horiz vert rcorner)
|
||
(concat
|
||
(apply
|
||
'concat
|
||
(org-element-map
|
||
table-row 'table-cell
|
||
(lambda (cell)
|
||
(let ((width (org-e-ascii--table-cell-width cell info))
|
||
(borders (org-export-table-cell-borders cell info)))
|
||
(concat
|
||
(when (and (memq 'left borders)
|
||
(equal (org-element-map
|
||
table-row 'table-cell 'identity info t)
|
||
cell)))
|
||
(make-string (+ 2 width) (string-to-char horiz))
|
||
(cond
|
||
((not (memq 'right borders)) nil)
|
||
((equal (car (last (org-element-contents table-row)))
|
||
cell)
|
||
rcorner)
|
||
(t vert)))))
|
||
info)) "\n"))))
|
||
(utf8p (eq (plist-get info :ascii-charset) 'utf-8))
|
||
(borders (org-export-table-cell-borders
|
||
(org-element-map table-row 'table-cell 'identity info t)
|
||
info)))
|
||
(concat (cond
|
||
((and (memq 'top borders) (or utf8p (memq 'above borders)))
|
||
(if utf8p (funcall build-hline "┍" "━" "┯" "┑")
|
||
(funcall build-hline "+" "-" "+" "+")))
|
||
((memq 'above borders)
|
||
(if utf8p (funcall build-hline "├" "─" "┼" "┤")
|
||
(funcall build-hline "+" "-" "+" "+"))))
|
||
(when (memq 'left borders) (if utf8p "│" "|"))
|
||
contents "\n"
|
||
(when (and (memq 'bottom borders) (or utf8p (memq 'below borders)))
|
||
(if utf8p (funcall build-hline "┕" "━" "┷" "┙")
|
||
(funcall build-hline "+" "-" "+" "+")))))))
|
||
|
||
|
||
;;;; Target
|
||
|
||
;; Targets are invisible.
|
||
|
||
|
||
;;;; Time-stamp
|
||
|
||
(defun org-e-ascii-time-stamp (time-stamp contents info)
|
||
"Transcode a TIME-STAMP object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
;; Return time-stamps as-is.
|
||
(org-element-time-stamp-interpreter time-stamp contents))
|
||
|
||
|
||
;;;; Verbatim
|
||
|
||
(defun org-e-ascii-verbatim (verbatim contents info)
|
||
"Return a VERBATIM object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(format org-e-ascii-verbatim-format
|
||
(org-element-property :value verbatim)))
|
||
|
||
|
||
;;;; Verse Block
|
||
|
||
(defun org-e-ascii-verse-block (verse-block contents info)
|
||
"Transcode a VERSE-BLOCK element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(let ((verse-width (org-e-ascii--current-text-width verse-block info)))
|
||
(org-e-ascii--indent-string
|
||
(org-e-ascii--justify-string
|
||
(org-export-secondary-string
|
||
(org-element-property :value verse-block) 'e-ascii info)
|
||
verse-width 'left)
|
||
org-e-ascii-quote-margin)))
|
||
|
||
|
||
;;; Filter
|
||
|
||
(defun org-e-ascii-filter-headline-blank-lines (headline back-end info)
|
||
"Filter controlling number of blank lines after an headline.
|
||
|
||
HEADLINE is a string representing a transcoded headline.
|
||
BACK-END is symbol specifying back-end used for export. INFO is
|
||
plist containing the communication channel.
|
||
|
||
This function only applies to `e-ascii' back-end. See
|
||
`org-e-ascii-headline-spacing' for information.
|
||
|
||
For any other back-end, HEADLINE is returned as-is."
|
||
(if (not (and (eq back-end 'e-ascii) org-e-ascii-headline-spacing)) headline
|
||
(let ((blanks (make-string (1+ (cdr org-e-ascii-headline-spacing)) ?\n)))
|
||
(replace-regexp-in-string "\n\\(?:\n[ \t]*\\)*\\'" blanks headline))))
|
||
|
||
|
||
|
||
;;; Interactive function
|
||
|
||
(defun org-e-ascii-export-to-ascii
|
||
(&optional subtreep visible-only body-only ext-plist pub-dir)
|
||
"Export current buffer to a text file.
|
||
|
||
If narrowing is active in the current buffer, only export its
|
||
narrowed part.
|
||
|
||
If a region is active, export that region.
|
||
|
||
When optional argument SUBTREEP is non-nil, export the sub-tree
|
||
at point, extracting information from the headline properties
|
||
first.
|
||
|
||
When optional argument VISIBLE-ONLY is non-nil, don't export
|
||
contents of hidden elements.
|
||
|
||
When optional argument BODY-ONLY is non-nil, strip title, table
|
||
of contents and footnote definitions from output.
|
||
|
||
EXT-PLIST, when provided, is a property list with external
|
||
parameters overriding Org default settings, but still inferior to
|
||
file-local settings.
|
||
|
||
When optional argument PUB-DIR is set, use it as the publishing
|
||
directory.
|
||
|
||
Return output file's name."
|
||
(interactive)
|
||
(let ((outfile (org-export-output-file-name ".txt" subtreep pub-dir)))
|
||
(org-export-to-file
|
||
'e-ascii outfile subtreep visible-only body-only ext-plist)))
|
||
|
||
|
||
(provide 'org-e-ascii)
|
||
;;; org-e-ascii.el ends here
|