1 ;;; infohack.el --- a hack to format info file.
2 ;; Copyright (C) 2001, 2003, 2004, 2008, 2009, 2010, 2011
3 ;; Free Software Foundation, Inc.
5 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 3, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 ;; Boston, MA 02110-1301, USA.
31 (if (fboundp 'texinfo-copying)
33 ;; Support @copying and @insertcopying for Emacs 21.3 and lesser and
35 (defvar texinfo-copying-text ""
36 "Text of the copyright notice and copying permissions.")
38 (defun texinfo-copying ()
39 "Copy the copyright notice and copying permissions from the Texinfo file,
40 as indicated by the @copying ... @end copying command;
41 insert the text with the @insertcopying command."
42 (let ((beg (progn (beginning-of-line) (point)))
43 (end (progn (re-search-forward "^@end copying[ \t]*\n") (point))))
44 (setq texinfo-copying-text
45 (buffer-substring-no-properties
46 (save-excursion (goto-char beg) (forward-line 1) (point))
47 (save-excursion (goto-char end) (forward-line -1) (point))))
48 (delete-region beg end)))
50 (defun texinfo-insertcopying ()
51 "Insert the copyright notice and copying permissions from the Texinfo file,
52 which are indicated by the @copying ... @end copying command."
53 (insert (concat "\n" texinfo-copying-text)))
55 (defadvice texinfo-format-scan (before expand-@copying-section activate)
56 "Extract @copying and replace @insertcopying with it."
57 (goto-char (point-min))
58 (when (search-forward "@copying" nil t)
60 (while (search-forward "@insertcopying" nil t)
61 (delete-region (match-beginning 0) (match-end 0))
62 (texinfo-insertcopying))))
64 (defun infohack-remove-unsupported ()
65 (goto-char (point-min))
66 (while (re-search-forward "@\\(end \\)?ifnottex" nil t)
68 (goto-char (point-min))
69 (while (search-forward "\n@iflatex\n" nil t)
70 (delete-region (1+ (match-beginning 0))
71 (search-forward "\n@end iflatex\n"))))
73 (defun infohack-include-files ()
74 "Insert @include files."
75 (goto-char (point-min))
76 (set-syntax-table texinfo-format-syntax-table)
77 (let (start texinfo-command-end filename)
78 (while (re-search-forward "^@include" nil t)
79 (setq start (match-beginning 0)
80 texinfo-command-end (point)
81 filename (texinfo-parse-line-arg))
82 (delete-region start (point-at-bol 2))
83 (message "Reading included file: %s" filename)
88 (+ (point) (car (cdr (insert-file-contents filename)))))
89 (goto-char (point-min))
90 ;; Remove `@setfilename' line from included file, if any,
91 ;; so @setfilename command not duplicated.
92 (if (re-search-forward "^@setfilename" (point-at-eol 100) t)
93 (delete-region (point-at-bol 1)
94 (point-at-bol 2))))))))
96 (defun infohack (file)
97 (let ((dest-directory default-directory)
98 (max-lisp-eval-depth (max max-lisp-eval-depth 600))
100 ;; Emacs 21.3 doesn't support @documentencoding
101 (unless (get 'documentencoding 'texinfo-format)
102 (put 'documentencoding 'texinfo-format
103 'texinfo-discard-line-with-args))
105 (setq buffer-read-only nil)
106 (setq coding-system buffer-file-coding-system)
107 (infohack-remove-unsupported)
108 (infohack-include-files)
109 (texinfo-every-node-update)
110 (texinfo-format-buffer t) ;; Don't save any file.
111 (setq default-directory dest-directory)
112 (setq buffer-file-name
113 (expand-file-name (file-name-nondirectory buffer-file-name)
115 (setq buffer-file-coding-system coding-system)
116 (if (> (buffer-size) (if (boundp 'Info-split-threshold)
117 (+ 50000 Info-split-threshold)
123 (when (string-match "windows-nt\\|os/2\\|emx\\|cygwin"
124 (symbol-name system-type))
125 (defun subst-char-in-region (START END FROMCHAR TOCHAR &optional NOUNDO)
126 "From START to END, replace FROMCHAR with TOCHAR each time it occurs.
127 If optional arg NOUNDO is non-nil, don't record this change for undo
128 and don't mark the buffer as really changed.
129 Both characters must have the same length of multi-byte form."
130 (let ((original-buffer-undo-list buffer-undo-list)
131 (modified (buffer-modified-p)))
133 (setq buffer-undo-list t))
135 (let ((from (char-to-string FROMCHAR))
136 (to (char-to-string TOCHAR)))
137 (while (search-forward from END t)
138 (replace-match to t t)))
140 (progn (setq buffer-undo-list original-buffer-undo-list)
141 (set-buffer-modidifed-p modified)))))))
143 (defun batch-makeinfo ()
144 "Emacs makeinfo in batch mode."
145 (infohack (car command-line-args-left))
146 (setq command-line-args-left nil))
148 ;;; infohack.el ends here