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;;; exercisesheets.el --- AUCTeX style for `exercisesheets.sty'
;; Author: Sebastian Kuhnert <mail@sebastian-kuhnert.de>
;; Created: 2009-11-18
;; Keywords: tex
(defun LaTeX-exercisesheets-read-kwopt (context spec)
"Ask the user if/how an option should be included.
CONTEXT is used in the prompt.
SPEC is a string of the form
`opt' for boolean options (ask if it should be included, default no),
`!opt' for boolean options (ask if it should be included, default yes),
`opt=' for free-form arguments for the option (include if non-empty),
`!opt=' for free-form arguments for the option (always included),
`opt=arg1,arg2,arg3' for suggestions with completion (empty means skip),
`!opt=arg1,arg2,arg3' for suggestions with completion (always included),
`opt=!arg1,arg2,arg3' for alternatives with completion (empty means skip),
`!opt=!arg1,arg2,arg3' for alternatives with completion (always included).
The result is the string to be used as argument. If the option is skipped, the result is nil."
(if (string-match "^\\(!?\\)\\(.*\\)=\\(!?\\)\\(.*\\)$" spec)
(let* ((required (if (match-string 1 spec) nil t))
(optstr (if required "optional " ""))
(require-match (if (match-string 3 spec) t nil))
(answer (save-match-data
(if (string= "" (match-string 4 spec))
(read-string (concat context ": " optstr "argument " (match-string 2 spec) "="))
(completing-read (concat context ": " optstr "argument " (match-string 2 spec) "=")
(split-string (match-string 4 spec) ",")
nil
require-match)))))
(if (or (not (string= "" answer)) required)
(if (string-match-p "[,= ]" answer)
(concat (match-string 2 spec) "={" answer "}")
(concat (match-string 2 spec) "=" answer))))
(if (string-match "^!\\(.*\\)$" spec)
(if (Y-or-n-p (concat context ": include argument " (match-string 1 spec) "? "))
(match-string 1 spec))
(if (y-or-N-p (concat context ": include argument " spec "? "))
spec))))
(defun Y-or-n-p (query)
"Variant of `y-or-n-p' where return/enter means yes"
(let ((query-replace-map
(append '(keymap (return . act) (enter . act)) (cdr query-replace-map))))
(y-or-n-p query)))
(defun y-or-N-p (query)
"Variant of `y-or-n-p' where return/enter means no"
(let ((query-replace-map
(append '(keymap (return . skip) (enter . skip)) (cdr query-replace-map))))
(y-or-n-p query)))
(defun LaTeX-exercisesheets-read-kwopts(context startdelim enddelim &rest specs)
(let* ((anslist (mapcar
(lambda (spec) (LaTeX-exercisesheets-read-kwopt context spec))
args))
(ansstr (list-to-string (delq nil anslist) ",")))
(if (not (string= "" ansstr))
(concat startdelim ansstr enddelim))))
(defun LaTeX-exercisesheets-insert-kwopts(optional &rest specs)
(if optional
(LaTeX-exercisesheets-read-kwopts(nil "[" "]" specs))
(LaTeX-exercisesheets-read-kwopts(nil "{" "}" specs))))
(defun LaTeX-exercisesheets-insert-environment (env &rest args)
"Insert environment ENV considering keyword arguments specified by ARGS.
See `LaTeX-exercisesheets-read-kwopt' for the format of the strings in ARGS."
(LaTeX-insert-environment env (LaTeX-exercisesheets-read-kwopts (concat env " environment") "[" "]" args)))
(TeX-add-style-hook "exercisesheets"
(lambda ()
;; New symbols
(TeX-add-symbols
'("subject" 1)
'("TODO" 0)
'("points" [ (LaTeX-exercisesheets-insert-kwopts "optional" "bonus") ] "points")
'("exshset" 1)
'("ifsolutions" 2))
;; New environments
(LaTeX-add-environments
'("sheet" LaTeX-exercisesheets-insert-environment "date=" "note=" "title=")
'("exercise" LaTeX-exercisesheets-insert-environment "points=" "oral" "name=" "firstline=")
'("solution" LaTeX-exercisesheets-insert-environment "oral")
'("hint" LaTeX-exercisesheets-insert-environment "remark")
'("hint*" LaTeX-exercisesheets-insert-environment "remark"))
;; Warning keywords
(font-latex-add-keywords '("TODO")
'warning)
))
(defvar LaTeX-exercisesheets-package-options '("only=" "all" "solutions" "solutions=oral" "solutionsby=" "language=")
"Package options for the exercisesheets package.")
;;; exercisesheets.el ends here
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