1 ;;; infohack.el --- a hack to format info file.
2 ;; Copyright (C) 2001, 2003, 2004, 2008 Free Software Foundation, Inc.
4 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 3, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 ;; Boston, MA 02110-1301, USA.
30 (if (fboundp 'texinfo-copying)
32 ;; Support @copying and @insertcopying for Emacs 21.3 and lesser and
34 (defvar texinfo-copying-text ""
35 "Text of the copyright notice and copying permissions.")
37 (defun texinfo-copying ()
38 "Copy the copyright notice and copying permissions from the Texinfo file,
39 as indicated by the @copying ... @end copying command;
40 insert the text with the @insertcopying command."
41 (let ((beg (progn (beginning-of-line) (point)))
42 (end (progn (re-search-forward "^@end copying[ \t]*\n") (point))))
43 (setq texinfo-copying-text
44 (buffer-substring-no-properties
45 (save-excursion (goto-char beg) (forward-line 1) (point))
46 (save-excursion (goto-char end) (forward-line -1) (point))))
47 (delete-region beg end)))
49 (defun texinfo-insertcopying ()
50 "Insert the copyright notice and copying permissions from the Texinfo file,
51 which are indicated by the @copying ... @end copying command."
52 (insert (concat "\n" texinfo-copying-text)))
54 (defadvice texinfo-format-scan (before expand-@copying-section activate)
55 "Extract @copying and replace @insertcopying with it."
56 (goto-char (point-min))
57 (when (search-forward "@copying" nil t)
59 (while (search-forward "@insertcopying" nil t)
60 (delete-region (match-beginning 0) (match-end 0))
61 (texinfo-insertcopying))))
63 (defun infohack-remove-unsupported ()
64 (goto-char (point-min))
65 (while (re-search-forward "@\\(end \\)?ifnottex" nil t)
67 (goto-char (point-min))
68 (while (search-forward "\n@iflatex\n" nil t)
69 (delete-region (1+ (match-beginning 0))
70 (search-forward "\n@end iflatex\n"))))
72 (defun infohack-include-files ()
73 "Insert @include files."
74 (goto-char (point-min))
75 (set-syntax-table texinfo-format-syntax-table)
76 (let (start texinfo-command-end filename)
77 (while (re-search-forward "^@include" nil t)
78 (setq start (match-beginning 0)
79 texinfo-command-end (point)
80 filename (texinfo-parse-line-arg))
81 (delete-region start (point-at-bol 2))
82 (message "Reading included file: %s" filename)
87 (+ (point) (car (cdr (insert-file-contents filename)))))
88 (goto-char (point-min))
89 ;; Remove `@setfilename' line from included file, if any,
90 ;; so @setfilename command not duplicated.
91 (if (re-search-forward "^@setfilename" (point-at-eol 100) t)
92 (delete-region (point-at-bol 1)
93 (point-at-bol 2))))))))
95 (defun infohack (file)
96 (let ((dest-directory default-directory)
97 (max-lisp-eval-depth (max max-lisp-eval-depth 600))
99 ;; Emacs 21.3 doesn't support @documentencoding
100 (unless (get 'documentencoding 'texinfo-format)
101 (put 'documentencoding 'texinfo-format
102 'texinfo-discard-line-with-args))
104 (setq buffer-read-only nil)
105 (setq coding-system buffer-file-coding-system)
106 (infohack-remove-unsupported)
107 (infohack-include-files)
108 (texinfo-every-node-update)
109 (texinfo-format-buffer t) ;; Don't save any file.
110 (setq default-directory dest-directory)
111 (setq buffer-file-name
112 (expand-file-name (file-name-nondirectory buffer-file-name)
114 (setq buffer-file-coding-system coding-system)
115 (if (> (buffer-size) (if (boundp 'Info-split-threshold)
116 (+ 50000 Info-split-threshold)
122 (when (string-match "windows-nt\\|os/2\\|emx\\|cygwin"
123 (symbol-name system-type))
124 (defun subst-char-in-region (START END FROMCHAR TOCHAR &optional NOUNDO)
125 "From START to END, replace FROMCHAR with TOCHAR each time it occurs.
126 If optional arg NOUNDO is non-nil, don't record this change for undo
127 and don't mark the buffer as really changed.
128 Both characters must have the same length of multi-byte form."
129 (let ((original-buffer-undo-list buffer-undo-list)
130 (modified (buffer-modified-p)))
132 (setq buffer-undo-list t))
134 (let ((from (char-to-string FROMCHAR))
135 (to (char-to-string TOCHAR)))
136 (while (search-forward from END t)
137 (replace-match to t t)))
139 (progn (setq buffer-undo-list original-buffer-undo-list)
140 (set-buffer-modidifed-p modified)))))))
142 (defun batch-makeinfo ()
143 "Emacs makeinfo in batch mode."
144 (infohack (car command-line-args-left))
145 (setq command-line-args-left nil))
147 ;;; arch-tag: 9ca2f71f-b280-48b3-9826-8dc052dfbbfe
148 ;;; infohack.el ends here