org-drill: prevent errors caused by attempting to display inline images on a non-graphical display.
This commit is contained in:
Paul Sexton
parent
6a38c1fac3
commit
5412883c1d
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@ -1,28 +1,28 @@
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;; -*- coding: utf-8-unix -*-
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;; org-drill.el - Self-testing using spaced repetition
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;;
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;; Author: Paul Sexton <eeeickythump@gmail.com>
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;; Version: 2.3.5
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;; Repository at http://bitbucket.org/eeeickythump/org-drill/
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;;
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;; This file is not part of GNU Emacs.
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;;
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;; Synopsis
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;; ========
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;;
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;; Uses the SuperMemo spaced repetition algorithms to conduct interactive
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;; "drill sessions", where the material to be remembered is presented to the
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;; student in random order. The student rates his or her recall of each item,
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;; and this information is used to schedule the item for later revision.
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;;
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;; Each drill session can be restricted to topics in the current buffer
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;; (default), one or several files, all agenda files, or a subtree. A single
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;; topic can also be drilled.
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;;
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;; Different "card types" can be defined, which present their information to
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;; the student in different ways.
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;;
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;; See the file README.org in the repository for more detailed documentation.
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;;; -*- coding: utf-8-unix -*-
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;;; org-drill.el - Self-testing using spaced repetition
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;;;
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;;; Author: Paul Sexton <eeeickythump@gmail.com>
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;;; Version: 2.3.6
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;;; Repository at http://bitbucket.org/eeeickythump/org-drill/
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;;;
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;;;
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;;; Synopsis
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;;; ========
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;;;
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;;; Uses the SuperMemo spaced repetition algorithms to conduct interactive
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;;; "drill sessions", where the material to be remembered is presented to the
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;;; student in random order. The student rates his or her recall of each item,
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;;; and this information is used to schedule the item for later revision.
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;;;
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;;; Each drill session can be restricted to topics in the current buffer
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;;; (default), one or several files, all agenda files, or a subtree. A single
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;;; topic can also be drilled.
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;;;
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;;; Different "card types" can be defined, which present their information to
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;;; the student in different ways.
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;;;
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;;; See the file README.org for more detailed documentation.
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(eval-when-compile (require 'cl))
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(eval-when-compile (require 'hi-lock))
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@ -37,6 +37,7 @@
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:group 'org-link)
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(defcustom org-drill-question-tag
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"drill"
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"Tag which topics must possess in order to be identified as review topics
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@ -53,6 +54,7 @@ Nil means unlimited."
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:type '(choice integer (const nil)))
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(defcustom org-drill-maximum-duration
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20
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"Maximum duration of a drill session, in minutes.
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@ -105,7 +107,7 @@ Possible values:
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but a warning message is printed when each leech item is
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presented."
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:group 'org-drill
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:type '(choice (const warn) (const skip) (const nil)))
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:type '(choice (const 'warn) (const 'skip) (const nil)))
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(defface org-drill-visible-cloze-face
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@ -260,9 +262,9 @@ directory All files with the extension '.org' in the same
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;; 'file-no-restriction' means current file/buffer, ignoring restrictions
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;; 'directory' means all *.org files in current directory
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:group 'org-drill
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:type '(choice (const file) (const tree) (const file-no-restriction)
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(const file-with-archives) (const agenda)
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(const agenda-with-archives) (const directory)
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:type '(choice (const 'file) (const 'tree) (const 'file-no-restriction)
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(const 'file-with-archives) (const 'agenda)
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(const 'agenda-with-archives) (const 'directory)
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list))
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@ -288,7 +290,7 @@ Available choices are:
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adjusting intervals when items are reviewed early or late has been taken
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from SM11, a later version of the algorithm, and included in Simple8."
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:group 'org-drill
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:type '(choice (const sm2) (const sm5) (const simple8)))
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:type '(choice (const 'sm2) (const 'sm5) (const 'simple8)))
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(defcustom org-drill-optimal-factor-matrix
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@ -619,7 +621,7 @@ situation use `org-part-of-drill-entry-p'."
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(defun org-drill-goto-entry (marker)
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(org-pop-to-buffer-same-window (marker-buffer marker))
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(switch-to-buffer (marker-buffer marker))
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(goto-char marker))
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@ -1507,18 +1509,38 @@ concealed by an overlay that displays the string TEXT."
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(org-drill-unreplace-entry-text))))
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(defun org-drill-replace-entry-text (text)
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(defmacro with-replaced-entry-text-multi (replacements &rest body)
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"During the execution of BODY, the entire text of the current entry is
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concealed by an overlay that displays the overlays in REPLACEMENTS."
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`(progn
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(org-drill-replace-entry-text ,replacements t)
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(unwind-protect
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(progn
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,@body)
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(org-drill-unreplace-entry-text))))
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(defun org-drill-replace-entry-text (text &optional multi-p)
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"Make an overlay that conceals the entire text of the item, not
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including properties or the contents of subheadings. The overlay shows
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the string TEXT.
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If MULTI-P is non-nil, TEXT must be a list of values which are legal
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for the `display' text property. The text of the item will be temporarily
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replaced by all of these items, in the order in which they appear in
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the list.
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Note: does not actually alter the item."
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(cond
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((and multi-p
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(listp text))
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(org-drill-replace-entry-text-multi text))
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(t
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(let ((ovl (make-overlay (point-min)
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(save-excursion
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(outline-next-heading)
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(point)))))
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(overlay-put ovl 'category
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'org-drill-replaced-text-overlay)
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(overlay-put ovl 'display text)))
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(overlay-put ovl 'display text)))))
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(defun org-drill-unreplace-entry-text ()
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@ -1528,6 +1550,27 @@ Note: does not actually alter the item."
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(delete-overlay ovl)))))
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(defun org-drill-replace-entry-text-multi (replacements)
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"Make overlays that conceal the entire text of the item, not
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including properties or the contents of subheadings. The overlay shows
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the string TEXT.
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Note: does not actually alter the item."
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(let ((ovl nil)
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(p-min (point-min))
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(p-max (save-excursion
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(outline-next-heading)
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(point))))
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(assert (>= (- p-max p-min) (length replacements)))
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(dotimes (i (length replacements))
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(setq ovl (make-overlay (+ p-min (* 2 i))
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(if (= i (1- (length replacements)))
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p-max
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(+ p-min (* 2 i) 1))))
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(overlay-put ovl 'category
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'org-drill-replaced-text-overlay)
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(overlay-put ovl 'display (nth i replacements)))))
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(defmacro with-replaced-entry-heading (heading &rest body)
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`(progn
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(org-drill-replace-entry-heading ,heading)
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@ -1577,7 +1620,8 @@ Note: does not actually alter the item."
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(with-hidden-cloze-hints
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(with-hidden-cloze-text
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(org-drill-hide-all-subheadings-except nil)
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(org-display-inline-images t)
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(ignore-errors
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(org-display-inline-images t))
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(org-cycle-hide-drawers 'all)
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(prog1 (org-drill-presentation-prompt)
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(org-drill-hide-subheadings-if 'org-drill-entry-p))))))
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@ -1586,6 +1630,8 @@ Note: does not actually alter the item."
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(defun org-drill-present-default-answer (reschedule-fn)
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(org-drill-hide-subheadings-if 'org-drill-entry-p)
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(org-drill-unhide-clozed-text)
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(ignore-errors
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(org-display-inline-images t))
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(with-hidden-cloze-hints
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(funcall reschedule-fn)))
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@ -1600,7 +1646,8 @@ Note: does not actually alter the item."
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(goto-char (nth (random* (min 2 (length drill-sections)))
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drill-sections))
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(org-show-subtree)))
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(org-display-inline-images t)
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(ignore-errors
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(org-display-inline-images t))
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(org-cycle-hide-drawers 'all)
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(prog1 (org-drill-presentation-prompt)
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(org-drill-hide-subheadings-if 'org-drill-entry-p)))))))
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@ -1616,7 +1663,8 @@ Note: does not actually alter the item."
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(save-excursion
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(goto-char (nth (random* (length drill-sections)) drill-sections))
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(org-show-subtree)))
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(org-display-inline-images t)
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(ignore-errors
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(org-display-inline-images t))
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(org-cycle-hide-drawers 'all)
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(prog1 (org-drill-presentation-prompt)
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(org-drill-hide-subheadings-if 'org-drill-entry-p)))))))
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@ -1694,7 +1742,8 @@ items if FORCE-SHOW-FIRST or FORCE-SHOW-LAST is non-nil)."
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;; while (org-pos-in-regexp (match-beginning 0)
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;; org-bracket-link-regexp 1))
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;; (org-drill-hide-matched-cloze-text)))))
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(org-display-inline-images t)
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(ignore-errors
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(org-display-inline-images t))
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(org-cycle-hide-drawers 'all)
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(prog1 (org-drill-presentation-prompt)
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(org-drill-hide-subheadings-if 'org-drill-entry-p)
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@ -1741,7 +1790,8 @@ the second to last, etc."
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(incf cnt)
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(if (= cnt to-hide)
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(org-drill-hide-matched-cloze-text)))))))
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(org-display-inline-images t)
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(ignore-errors
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(org-display-inline-images t))
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(org-cycle-hide-drawers 'all)
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(prog1 (org-drill-presentation-prompt)
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(org-drill-hide-subheadings-if 'org-drill-entry-p)
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@ -1905,6 +1955,23 @@ pieces rather than one."
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question
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(org-drill-hide-all-subheadings-except nil)
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(org-cycle-hide-drawers 'all)
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(ignore-errors
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(org-display-inline-images t))
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(prog1 (org-drill-presentation-prompt)
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(org-drill-hide-subheadings-if 'org-drill-entry-p)))))
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(defun org-drill-present-card-using-multiple-overlays (replacements &optional answer)
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"TEXTS is a list of valid values for the 'display' text property.
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Present these overlays, in sequence, as the only
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visible content of the card."
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(with-hidden-comments
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(with-replaced-entry-text-multi
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replacements
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(org-drill-hide-all-subheadings-except nil)
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(org-cycle-hide-drawers 'all)
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(ignore-errors
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(org-display-inline-images t))
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(prog1 (org-drill-presentation-prompt)
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(org-drill-hide-subheadings-if 'org-drill-entry-p)))))
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@ -2448,7 +2515,9 @@ than starting a new one."
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(cond
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(end-pos
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(when (markerp end-pos)
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(org-drill-goto-entry end-pos))
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(org-drill-goto-entry end-pos)
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(org-reveal)
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(org-show-entry))
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(let ((keystr (command-keybinding-to-string 'org-drill-resume)))
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(message
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"You can continue the drill session with the command `org-drill-resume'.%s"
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@ -2600,7 +2669,7 @@ the tag 'imported'."
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(unless path
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(setq path (org-get-outline-path)))
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(org-copy-subtree)
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(org-pop-to-buffer-same-window dest)
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(switch-to-buffer dest)
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(setq m
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(condition-case nil
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(org-find-olp path t)
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@ -2682,7 +2751,7 @@ copy them across."
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scheduled-time (org-get-scheduled-time (point)))
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(save-excursion
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;; go to matching entry in destination buffer
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(org-pop-to-buffer-same-window (marker-buffer marker))
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(switch-to-buffer (marker-buffer marker))
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(goto-char marker)
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(org-drill-strip-entry-data)
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(unless (zerop total-repeats)
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@ -2738,7 +2807,14 @@ copy them across."
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("imperfect" "darkturquoise")
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("present perfect" "royalblue")
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;; future tenses
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("future" "green"))
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("future" "green")
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;; moods (backgrounds).
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("indicative" nil) ; default
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("subjunctive" "medium blue")
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("conditional" "grey30")
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("negative imperative" "red4")
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("positive imperative" "darkgreen")
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)
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"Alist where each entry has the form (TENSE COLOUR), where
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TENSE is a string naming a tense in which verbs can be
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conjugated, and COLOUR is a string specifying a foreground colour
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@ -2754,50 +2830,72 @@ the name of the tense.")
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(inf-hint (org-entry-get (point) "VERB_INFINITIVE_HINT" t))
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(translation (org-entry-get (point) "VERB_TRANSLATION" t))
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(tense (org-entry-get (point) "VERB_TENSE" nil))
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(mood (org-entry-get (point) "VERB_MOOD" nil))
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(highlight-face nil))
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(unless (and infinitive translation tense)
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(error "Missing information for verb conjugation card (%s, %s, %s) at %s"
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infinitive translation tense (point)))
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(setq tense (downcase (car (read-from-string tense)))
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(unless (and infinitive translation (or tense mood))
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(error "Missing information for verb conjugation card (%s, %s, %s, %s) at %s"
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infinitive translation tense mood (point)))
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(setq tense (if tense (downcase (car (read-from-string tense))))
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mood (if mood (downcase (car (read-from-string mood))))
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infinitive (car (read-from-string infinitive))
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inf-hint (if inf-hint (car (read-from-string inf-hint)))
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translation (car (read-from-string translation)))
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(setq highlight-face
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(list :foreground
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(or (second (assoc-string tense org-drill-verb-tense-alist t))
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"red")))
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"hotpink")
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:background
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(second (assoc-string mood org-drill-verb-tense-alist t))))
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(setq infinitive (propertize infinitive 'face highlight-face))
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(setq translation (propertize translation 'face highlight-face))
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(setq tense (propertize tense 'face highlight-face))
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(list infinitive inf-hint translation tense)))
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(if tense (setq tense (propertize tense 'face highlight-face)))
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(if mood (setq mood (propertize mood 'face highlight-face)))
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(list infinitive inf-hint translation tense mood)))
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(defun org-drill-present-verb-conjugation ()
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"Present a drill entry whose card type is 'conjugate'."
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(destructuring-bind (infinitive inf-hint translation tense)
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(flet ((tense-and-mood-to-string
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(tense mood)
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(cond
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((and tense mood)
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(format "%s tense, %s mood" tense mood))
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(tense
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(format "%s tense" tense))
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(mood
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(format "%s mood" mood)))))
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(destructuring-bind (infinitive inf-hint translation tense mood)
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(org-drill-get-verb-conjugation-info)
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(org-drill-present-card-using-text
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(cond
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((zerop (random* 2))
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(format "\nTranslate the verb\n\n%s\n\nand conjugate for the %s tense.\n\n"
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infinitive tense))
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(format "\nTranslate the verb\n\n%s\n\nand conjugate for the %s.\n\n"
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infinitive (tense-and-mood-to-string tense mood)))
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(t
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(format "\nGive the verb that means\n\n%s %s\n
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and conjugate for the %s tense.\n\n"
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and conjugate for the %s.\n\n"
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translation
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(if inf-hint (format " [HINT: %s]" inf-hint) "")
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tense))))))
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(tense-and-mood-to-string tense mood))))))))
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(defun org-drill-show-answer-verb-conjugation (reschedule-fn)
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"Show the answer for a drill item whose card type is 'conjugate'.
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RESCHEDULE-FN must be a function that calls `org-drill-reschedule' and
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returns its return value."
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(destructuring-bind (infinitive inf-hint translation tense)
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(destructuring-bind (infinitive inf-hint translation tense mood)
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(org-drill-get-verb-conjugation-info)
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(with-replaced-entry-heading
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(format "%s tense of %s ==> %s\n\n"
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(capitalize tense)
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(format "%s of %s ==> %s\n\n"
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(capitalize
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(cond
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((and tense mood)
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(format "%s tense, %s mood" tense mood))
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(tense
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(format "%s tense" tense))
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(mood
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(format "%s mood" mood))))
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infinitive translation)
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(funcall reschedule-fn))))
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@ -2915,3 +3013,4 @@ returns its return value."
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(provide 'org-drill)
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