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- ;;; detexinfo.el --- remove Texinfo commands from a Texinfo source file
-
- ;; Copyright (C) 1992-1993 Free Software Foundation, Inc.
-
- ;; Keywords: tex, docs
-
- ;; This file is part of XEmacs.
-
- ;; XEmacs 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 2, or (at your option)
- ;; any later version.
-
- ;; XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free
- ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- ;;; Synched up with: Not in FSF.
-
- ;;; Here is a handy keybinding:
-
- (global-set-key "\C-x\\" 'detexinfo)
-
- ;;;;;;;;;;;;;;;; detexinfo.el ;;;;;;;;;;;;;;;;
- ;;;
- ;;; Remove Texinfo commands from a Texinfo source file.
- ;;;
- ;;; Copyright (C) 1991, 1992 Free Software Foundation
- ;;; Robert J. Chassell
- ;;; bugs to bug-texinfo@prep.ai.mit.edu
- ;;;
- ;;; ==> test version <==
- ;;; Fails if Texinfo source file contains formatting errors.
- ;;;
- ;;; Version 0.05 - 3 Jun 1992
- ;;; Add to list of removed commands. Improve messages.
- ;;;
- ;;; Version 0.04 - 27 Jan 1992
- ;;; Rewrite to insert detexinfo'd text into a temporary buffer.
- ;;;
- ;;; Version 0.03 - 27 Dec 1991
- ;;; Improved messages.
- ;;;
- ;;; Version 0.02 - 13 Nov 1991
- ;;; detexinfo-remove-inline-cmd, detexinfo-syntax-table: Handle
- ;;; nested commands.
- ;;; detexinfo: Handle nested @'s, eg @samp{@}} and @samp{@@};
- ;;; replace @TeX{} with TeX.
- ;;;
- ;;; Version 0.01 - 13 Nov 1991
- ;;;
- ;;; Based on detex.el, by Bengt Martensson, 4 Oct 1987
- ;;;
- ;;;;;;;;;;;;;;;;
-
- (defvar detexinfo-buffer-name "*detexinfo*"
- "*Name of the temporary buffer used by \\[detexinfo].")
-
- (defvar detexinfo-syntax-table nil)
-
- (if detexinfo-syntax-table
- nil
- (setq detexinfo-syntax-table (make-syntax-table))
- (modify-syntax-entry ?\[ "." detexinfo-syntax-table)
- (modify-syntax-entry ?\] "." detexinfo-syntax-table)
- (modify-syntax-entry ?\" "." detexinfo-syntax-table)
- (modify-syntax-entry ?\\ "." detexinfo-syntax-table)
- (modify-syntax-entry ?\( "." detexinfo-syntax-table)
- (modify-syntax-entry ?\) "." detexinfo-syntax-table)
- (modify-syntax-entry ?{ "(}" detexinfo-syntax-table)
- (modify-syntax-entry ?} "){" detexinfo-syntax-table))
-
- (defun detexinfo ()
- "Remove Texinfo commands from current buffer, copying result to new buffer.
- BUG: Fails if Texinfo source file contains formatting errors."
- (interactive)
- (let ((input-buffer (current-buffer)))
- ;; Find a buffer to use.
- (switch-to-buffer (get-buffer-create detexinfo-buffer-name))
- (setq major-mode 'detexinfo-mode)
- (set-syntax-table detexinfo-syntax-table)
- (erase-buffer)
- (insert-buffer-substring input-buffer)
-
- ;; Replace @{ and @} with %#* and *#% temporarily, so @samp{@{} works.
- ;; What is a better way of doing this??
- (goto-char (point-min))
- (while (search-forward "@{" nil t) ; e.g., @samp{@{}
- (replace-match "%#*"))
- (goto-char (point-min))
- (while (search-forward "@}" nil t)
- (forward-char -3) ; e.g., @samp{@@}
- (if (looking-at "@") ; Two @@ in a row
- (progn
- (delete-char 2)
- (insert "%&%#"))
- (forward-char 1)
- (delete-char 2)
- (insert "*#%")))
-
- (goto-char (point-min))
- ;; Remove @refill, the only inline command without braces.
- (while (search-forward "@refill" nil t)
- (replace-match ""))
- ;; Replace @TeX{} with TeX
- (goto-char (point-min))
- (while (search-forward "@TeX{}" nil t) (replace-match "TeX" t t))
-
- (detexinfo-remove-line-cmds-without-arg)
- (detexinfo-remove-inline-cmds-without-arg)
- (detexinfo-remove-inline-cmds-keep-arg)
- (detexinfo-remove-line-cmds-deletable-arg)
- (detexinfo-remove-line-cmds-maybe-delete-arg)
- (detexinfo-remove-line-cmds-keep-arg)
-
- ;; Now replace %#*, *#%, and %&%# with {, }, and @@.
- (goto-char (point-min))
- (while (search-forward "%#*" nil t)
- (replace-match "{"))
- (goto-char (point-min))
- (while (search-forward "*#%" nil t)
- (replace-match "}"))
- (goto-char (point-min))
- (while (search-forward "%&%#" nil t)
- (replace-match "@@"))
-
- ;; Scan for remaining two character @-commands
- (goto-char (point-min))
- (while (search-forward "@" nil t)
- (cond ((looking-at "[*:]")
- (delete-region (1- (point)) (1+ (point))))
- ((looking-at "[{}^@.'`]\"?!")
- (delete-region (1- (point)) (point)))))
-
- (goto-char (point-min))
- (message "Done...removed Texinfo commands from buffer. You may save it.")))
-
- (defun detexinfo-remove-whole-line (cmd)
- "Delete Texinfo line command CMD at beginning of line and rest of line."
- (goto-char (point-min))
- (while
- (re-search-forward
- (concat "^@" cmd "[ \n]+") (point-max) t)
- (goto-char (match-beginning 0))
- (delete-region
- (point) (save-excursion (end-of-line) (1+ (point))))))
-
- (defun detexinfo-remove-inline-cmd (cmd)
- "Delete Texinfo inline command CMD, eg. @point, @code."
- (goto-char (point-min))
- (while
- (re-search-forward (concat "@" cmd "{") (point-max) t)
- (save-excursion
- (forward-char -1)
- (forward-sexp 1)
- (delete-char -1)) ; delete right brace
- (delete-region (point) (match-beginning 0))))
-
- ;;;;;;;;;;;;;;;;
-
- ;;; 1. @setfilename and other line commands with args to delete
-
- (defvar detexinfo-line-cmds-deletable-arg
- '("enumerate" "ftable" "vtable" "itemize" "table"
- "setfilename" "settitle" "setchapternewpage"
- "footnotestyle" "paragraphindent"
- "include" "need" "sp"
- "clear" "ifclear" "ifset" "set"
- "defcodeindex" "defindex" "syncodeindex" "synindex")
- "List of Texinfo commands whose arguments should be deleted.")
-
- (defun detexinfo-remove-line-cmds-deletable-arg ()
- "Delete Texinfo line commands together with their args, eg @setfilename."
- (message "Removing commands such as @enumerate...with their arguments...")
- (mapcar 'detexinfo-remove-whole-line
- detexinfo-line-cmds-deletable-arg))
-
- ;;; 2. @cindex and other cmds with args that may be deleted
- ;;; This list is here just to make it easier to revise the
- ;;; categories. In particular, you might want to keep the index entries.
-
- (defvar detexinfo-line-cmds-maybe-delete-arg
- '("cindex" "findex" "kindex" "pindex" "tindex" "vindex" "node"
- "c" "comment" "end" "headings" "printindex" "vskip"
- "evenfooting" "evenheading" "everyfooting" "everyheading"
- "oddfooting" "oddheading")
- "List of Texinfo commands whose arguments may possibly be deleted.")
-
- (defun detexinfo-remove-line-cmds-maybe-delete-arg ()
- "Delete Texinfo line commands together with their arguments, eg, @cindex."
- (message "Removing commands such as @cindex...with their arguments...")
- (mapcar 'detexinfo-remove-whole-line
- detexinfo-line-cmds-maybe-delete-arg))
-
- ;;; 3. @chapter and other line cmds with args to keep.
-
- (defvar detexinfo-line-cmds-keep-arg
- '("top" "chapter" "section" "subsection" "subsubsection"
- "unnumbered" "unnumberedsec" "unnumberedsubsec" "unnumberedsubsubsec"
- "majorheading" "chapheading" "heading" "subheading" "subsubheading"
- "appendix" "appendixsec" "appendixsubsec" "appendixsubsubsec"
- "item" "itemx"
- "title" "subtitle" "center" "author" "exdent"
- "defcv" "deffn" "defivar" "defmac" "defmethod" "defop" "defopt"
- "defspec" "deftp" "deftypefn" "deftypefun" "deftypvr"
- "deftypevar" "defun" "defvar" "defvr")
- "List of Texinfo line commands whose arguments should be kept.")
-
- (defun detexinfo-remove-line-cmds-keep-arg ()
- "Delete Texinfo line commands but keep their arguments, eg @chapter."
- (message "Removing commands such as @chapter...but not their arguments...")
- (mapcar 'detexinfo-remove-line-cmd-keep-arg
- detexinfo-line-cmds-keep-arg))
-
- (defun detexinfo-remove-line-cmd-keep-arg (cmd)
- "Delete Texinfo line command CMD but keep its argument, eg @chapter."
- (goto-char (point-min))
- (while
- (re-search-forward
- (concat "^@" cmd "[ \n]+") (point-max) t)
- (delete-region (match-beginning 0) (match-end 0))))
-
- ;;; 4. @bye and other line commands without args.
-
- (defvar detexinfo-line-cmds-without-arg
- '("bye" "contents" "display" "example" "finalout"
- "flushleft" "flushright" "format" "group" "ifhtml" "ifinfo" "iftex"
- "ignore" "lisp" "menu" "noindent" "page" "quotation"
- "shortcontents" "smallbook" "smallexample" "smalllisp"
- "summarycontents" "tex" "thischapter" "thischaptername"
- "thisfile" "thispage" "thissection" "thistitle" "titlepage")
- "List of Texinfo commands without arguments that should be deleted.")
-
- (defun detexinfo-remove-line-cmds-without-arg ()
- "Delete line Texinfo commands that lack args, eg. @example."
- (message "Removing commands such as @example...that lack arguments...")
- (mapcar 'detexinfo-remove-whole-line
- detexinfo-line-cmds-without-arg))
-
- ;;; 5. @equiv and other inline cmds without args.
-
- (defvar detexinfo-inline-cmds-without-arg
- '("equiv" "error" "expansion" "point" "print" "result"
- "asis" "br" "bullet" "dots" "minus" "today")
- "List of Texinfo inline commands without arguments that should be deleted.")
-
- (defun detexinfo-remove-inline-cmds-without-arg ()
- "Delete Texinfo inline commands in that lack arguments."
- (message "Removing within line commands such as @result...")
- (mapcar 'detexinfo-remove-inline-cmd
- detexinfo-inline-cmds-without-arg))
-
- ;;; 6. @code and other inline cmds with args to keep
-
- (defvar detexinfo-inline-cmds-keep-arg
- '("b" "cartouche" "cite" "code" "copyright" "ctrl" "dfn" "dmn"
- "emph" "file" "footnote" "i" "inforef"
- "kbd" "key" "pxref" "r" "ref" "samp" "sc" "titlefont"
- "strong" "t" "var" "w" "xref")
- "List of Texinfo inline commands with arguments that should be kept.")
-
- (defun detexinfo-remove-inline-cmds-keep-arg ()
- "Delete Texinfo inline commands but keep its arg, eg. @code."
- (message
- "Removing within line commands such as @code...but not their arguments...")
- (mapcar 'detexinfo-remove-inline-cmd
- detexinfo-inline-cmds-keep-arg))
-
- ;;;;;;;;;;;;;;;; end detexinfo.el ;;;;;;;;;;;;;;;;
-