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+;;; moodle.el --- AUCTeX style for `moodle.sty' (v0.5) -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2017, 2018, 2020 Free Software Foundation, Inc.
+
+;; Author: Arash Esbati <arash@gnu.org>
+;; Maintainer: auctex-devel@gnu.org
+;; Created: 2017-06-10
+;; Keywords: tex
+
+;; This file is part of AUCTeX.
+
+;; AUCTeX is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3, or (at your option)
+;; any later version.
+
+;; AUCTeX is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with AUCTeX; see the file COPYING. If not, write to the Free
+;; Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+;; 02110-1301, USA.
+
+;;; Commentary:
+
+;; This file adds support for `moodle.sty' (v0.5) from 2016/01/11.
+
+;; In multi environments, the correct answer is marked with `\item*'.
+;; This style adds asterisk to the list of key=values queried after
+;; \item in this environment in order to make the input procedure
+;; easier.
+
+;;; Code:
+
+(require 'tex)
+(require 'latex)
+
+;; Silence the compiler:
+(declare-function font-latex-add-keywords
+ "font-latex"
+ (keywords class))
+
+(defvar LaTeX-moodle-key-val-options
+ '(("points")
+ ("default grade")
+ ("penalty")
+ ("fraction")
+ ("feedback"))
+ "Key=value options for moodle macros and environments.")
+
+(defun LaTeX-moodle-question-env-with-args (env)
+ "Insert ENV provided by moodle.sty incl. arguments and first \\item."
+ (LaTeX-insert-environment
+ env
+ (let ((opts (TeX-read-key-val
+ t
+ (cond (;; 3.3.1 Multiple Choice
+ (string= env "multi")
+ (append '(("shuffle" ("true" "false"))
+ ("numbering" ("alph" "Alph" "arabic"
+ "roman" "Roman" "none"))
+ ("single" ("true" "false"))
+ ("multiple" ("true" "false")))
+ (when (string= "cloze" (LaTeX-current-environment))
+ '(("vertical" ("true" "false"))
+ ("horizonal" ("true" "false"))))
+ LaTeX-moodle-key-val-options))
+ ;; 3.3.3 Short Answer
+ ((string= env "shortanswer")
+ (append '(("case sensitive" ("true" "false"))
+ ("usecase" ("true" "false")))
+ (when (string= "cloze" (LaTeX-current-environment))
+ '(("vertical" ("true" "false"))
+ ("horizonal" ("true" "false"))))
+ LaTeX-moodle-key-val-options))
+ ;; 3.3.4 Essay Questions
+ ((string= env "essay")
+ (append '(("response required" ("true" "false"))
+ ("response format" ("html" "file"
+ "html+file"
+ "text" "monospaced"))
+ ("response field lines")
+ ("attachments allowed" ("0" "1" "2" "3"
+ "unlimited"))
+ ("attachments required" ("0" "1" "2" "3"))
+ ("response template"))
+ (when (string= "cloze" (LaTeX-current-environment))
+ '(("vertical" ("true" "false"))
+ ("horizonal" ("true" "false"))))
+ LaTeX-moodle-key-val-options))
+ ;; 3.4 Matching Questions
+ ((string= env "matching")
+ (append '(("shuffle" ("true" "false"))
+ ("drag and drop" ("true" "false"))
+ ("dd" ("true" "false")))
+ LaTeX-moodle-key-val-options))
+ (t (append
+ (when (string= "cloze" (LaTeX-current-environment))
+ '(("vertical" ("true" "false"))
+ ("horizonal" ("true" "false"))))
+ LaTeX-moodle-key-val-options)))))
+ (qname (unless (string= "cloze" (LaTeX-current-environment))
+ (TeX-read-string (TeX-argument-prompt nil nil "Question name")))))
+ (concat
+ (when (and opts (not (string= opts "")))
+ (format "[%s]" opts))
+ (when (and qname (not (string= qname "")))
+ (format "{%s}" qname)))))
+ (if (TeX-active-mark)
+ (progn
+ (LaTeX-find-matching-begin)
+ (end-of-line 1))
+ (end-of-line 0))
+ (delete-char 1)
+ (when (looking-at (concat "^[ \t]+$\\|"
+ "^[ \t]*" TeX-comment-start-regexp "+[ \t]*$"))
+ (delete-region (point) (line-end-position)))
+ (delete-horizontal-space)
+ ;; Deactivate the mark here in order to prevent `TeX-parse-macro'
+ ;; from swapping point and mark and the \item ending up right after
+ ;; \begin{...}.
+ (deactivate-mark)
+ ;; Query and insert the question text.
+ (let ((qtext (TeX-read-string (TeX-argument-prompt nil nil "Question Text"))))
+ (when (and qtext (not (string= qtext "")))
+ (newline)
+ (indent-according-to-mode)
+ (insert qtext)
+ (when auto-fill-function (LaTeX-fill-paragraph))))
+ (LaTeX-insert-item)
+ ;; The inserted \item may have outdented the first line to the
+ ;; right. Fill it, if appropriate.
+ (when (and auto-fill-function
+ (not (looking-at "$"))
+ (not (assoc env LaTeX-indent-environment-list))
+ (> (- (line-end-position) (line-beginning-position))
+ (current-fill-column)))
+ (LaTeX-fill-paragraph nil)))
+
+(defun LaTeX-moodle-item-argument ()
+ "Insert an \\item with optional argument in environments of moodle package."
+ ;; Do not query for an optional argument here, this happens below:
+ (let ((TeX-insert-macro-default-style 'mandatory-args-only))
+ (TeX-insert-macro "item"))
+ ;; Add * to `LaTeX-moodle-key-val-options' in multi environment and
+ ;; query for the key=values:
+ (let ((opts
+ (TeX-read-key-val t (if (string= "multi" (LaTeX-current-environment))
+ (append '(("*")) LaTeX-moodle-key-val-options)
+ LaTeX-moodle-key-val-options))))
+ ;; Insert key=values; if * is chosen, drop []:
+ (when (and opts (not (string= opts "")))
+ (delete-horizontal-space)
+ (if (string= opts "*")
+ (insert opts)
+ (insert LaTeX-optop opts LaTeX-optcl))))
+ (just-one-space)
+ ;; Bonus point: Insert the macro \answer in matching environment:
+ (when (string= "matching" (LaTeX-current-environment))
+ (save-excursion
+ (insert TeX-esc "answer")
+ (just-one-space))))
+
+(TeX-add-style-hook
+ "moodle"
+ (lambda ()
+
+ (LaTeX-add-environments
+ ;; 3.2 Quiz and Question Environments
+ '("quiz"
+ (lambda (environment)
+ (LaTeX-insert-environment
+ environment
+ (let ((opts (TeX-read-key-val t LaTeX-moodle-key-val-options))
+ (bank (TeX-read-string (TeX-argument-prompt nil nil "Question bank name"))))
+ (concat
+ (when (and opts (not (string= opts "")))
+ (format "[%s]" opts))
+ (format "{%s}" bank))))))
+ ;; 3.5 Cloze Questions
+ '("cloze" "Question bank name"))
+
+ ;; Make other environments available to AUCTeX:
+ (dolist (env '("multi" "numerical" "shortanswer" "essay" "matching"))
+ (LaTeX-add-environments `(,env LaTeX-moodle-question-env-with-args))
+ (add-to-list 'LaTeX-item-list `(,env . LaTeX-moodle-item-argument) t))
+
+ (TeX-add-symbols
+ '("moodleset"
+ (TeX-arg-eval
+ (lambda ()
+ (let ((opts (TeX-read-key-val nil
+ (append '(("ppi")) LaTeX-moodle-key-val-options))))
+ (format "%s" opts)))))
+
+ ;; 5 Graphics
+ '("ghostscriptcommand" "File name")
+ '("imagemagickcommand" "File name")
+ '("opensslcommand" "File name"))
+
+ ;; Fontification
+ (when (and (featurep 'font-latex)
+ (eq TeX-install-font-lock 'font-latex-setup))
+ (font-latex-add-keywords '(("moodleset" "{")
+ ("ghostscriptcommand" "{")
+ ("imagemagickcommand" "{")
+ ("opensslcommand" "{"))
+ 'function)
+ (font-latex-add-keywords '(("answer" "")
+ ;; Cater for a fontified starred \item
+ ("item" "*["))
+ 'textual)))
+ TeX-dialect)
+
+(defvar LaTeX-moodle-package-options
+ '("draft")
+ "Package options for the moodle package.")
+
+;;; moodle.el ends here
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