cgit.sxemacs.org Git - riece/blob - doc/infohack.el

   1 ;;; infohack.el --- a hack to format info file.
   2 ;; Copyright (C)  2001  Free Software Foundation, Inc.
   3
   4 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
   5 ;; Keywords: info
   6
   7 ;; This file is part of GNU Emacs.
   8
   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 2, or (at your option)
  12 ;; any later version.
  13
  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.
  18
  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.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 ;(let ((default-directory (expand-file-name "../lisp/"))
  29 ;      (features (cons 'w3-forms (copy-sequence features))))
  30 ;  ;; Adjust `load-path' for APEL.
  31 ;  (load-file "dgnushack.el"))
  32 (load-file (expand-file-name "ptexinfmt.el"
  33                              (car command-line-args-left)))
  34 (setq command-line-args-left (cdr command-line-args-left))
  35
  36 (defun infohack-remove-unsupported ()
  37   (goto-char (point-min))
  38   (while (re-search-forward "@\\(end \\)?ifnottex" nil t)
  39     (replace-match ""))
  40   (goto-char (point-min))
  41   (while (search-forward "\n@iflatex\n" nil t)
  42     (delete-region (1+ (match-beginning 0))
  43                    (search-forward "\n@end iflatex\n"))))
  44
  45 (defun infohack (file)
  46   (let ((dest-directory default-directory)
  47         (max-lisp-eval-depth (max max-lisp-eval-depth 600))
  48         coding-system)
  49     (find-file file)
  50     (setq buffer-read-only nil)
  51     (setq coding-system (if (boundp 'buffer-file-coding-system)
  52                             buffer-file-coding-system
  53                           file-coding-system))
  54     (infohack-remove-unsupported)
  55     (texinfo-every-node-update)
  56     (texinfo-format-buffer t) ;; Don't save any file.
  57     (setq default-directory dest-directory)
  58     (setq buffer-file-name
  59           (expand-file-name (file-name-nondirectory buffer-file-name)
  60                             default-directory))
  61     (setq buffer-file-coding-system coding-system
  62           file-coding-system coding-system)
  63     (if (> (buffer-size) 100000)
  64         (Info-split))
  65     (save-buffer)))
  66
  67 (eval-and-compile
  68   (when (string-match "windows-nt\\|os/2\\|emx\\|cygwin"
  69                       (symbol-name system-type))
  70     (defun subst-char-in-region (START END FROMCHAR TOCHAR &optional NOUNDO)
  71       "From START to END, replace FROMCHAR with TOCHAR each time it occurs.
  72 If optional arg NOUNDO is non-nil, don't record this change for undo
  73 and don't mark the buffer as really changed.
  74 Both characters must have the same length of multi-byte form."
  75       (let ((original-buffer-undo-list buffer-undo-list)
  76             (modified (buffer-modified-p)))
  77         (if NOUNDO
  78             (setq buffer-undo-list t))
  79         (goto-char START)
  80         (let ((from (char-to-string FROMCHAR))
  81               (to (char-to-string TOCHAR)))
  82           (while (search-forward from END t)
  83             (replace-match to t t)))
  84         (if NOUNDO
  85             (progn (setq buffer-undo-list original-buffer-undo-list)
  86                    (set-buffer-modidifed-p modified)))))))
  87
  88 (defun batch-makeinfo ()
  89   "Emacs makeinfo in batch mode."
  90   (infohack-texi-format (car command-line-args-left)
  91                         (car (cdr command-line-args-left)))
  92   (setq command-line-args-left nil))
  93
  94 \f
  95 (defun infohack-texi-format (file &optional addsuffix)
  96   (let ((auto-save-default nil)
  97         (find-file-run-dired nil)
  98         coding-system-for-write
  99         output-coding-system
 100         (error 0))
 101     (condition-case err
 102         (progn
 103           (find-file file)
 104           (setq buffer-read-only nil)
 105           (buffer-disable-undo (current-buffer))
 106           (if (boundp 'MULE)
 107               (setq output-coding-system file-coding-system)
 108             (setq coding-system-for-write buffer-file-coding-system))
 109           ;; Remove ignored areas first.
 110           (while (re-search-forward "^@ignore[\t\r ]*$" nil t)
 111             (delete-region (match-beginning 0)
 112                            (if (re-search-forward
 113                                 "^@end[\t ]+ignore[\t\r ]*$" nil t)
 114                                (1+ (match-end 0))
 115                              (point-max))))
 116           (infohack-remove-unsupported)
 117           (goto-char (point-min))
 118           ;; Add suffix if it is needed.
 119           (when (and addsuffix
 120                      (re-search-forward "^@setfilename[\t ]+\\([^\t\n ]+\\)"
 121                                         nil t)
 122                      (not (string-match "\\.info$" (match-string 1))))
 123             (insert ".info")
 124             (goto-char (point-min)))
 125           ;; process @include before updating node
 126           ;; This might produce some problem if we use @lowersection or
 127           ;; such.
 128           (let ((input-directory default-directory)
 129                 (texinfo-command-end))
 130             (while (re-search-forward "^@include" nil t)
 131               (setq texinfo-command-end (point))
 132               (let ((filename (concat input-directory
 133                                       (texinfo-parse-line-arg))))
 134                 (re-search-backward "^@include")
 135                 (delete-region (point) (save-excursion
 136                                          (forward-line 1)
 137                                          (point)))
 138                 (message "Reading included file: %s" filename)
 139                 (save-excursion
 140                   (save-restriction
 141                     (narrow-to-region
 142                      (point) (+ (point)
 143                                 (car (cdr (insert-file-contents filename)))))
 144                     (goto-char (point-min))
 145                     ;; Remove `@setfilename' line from included file,
 146                     ;; if any, so @setfilename command not duplicated.
 147                     (if (re-search-forward "^@setfilename"
 148                                            (save-excursion
 149                                              (forward-line 100)
 150                                              (point))
 151                                            t)
 152                         (progn
 153                           (beginning-of-line)
 154                           (delete-region (point) (save-excursion
 155                                                    (forward-line 1)
 156                                                    (point))))))))))
 157           (texinfo-mode)
 158           (texinfo-every-node-update)
 159           (set-buffer-modified-p nil)
 160           (message "texinfo formatting %s..." file)
 161           (texinfo-format-buffer nil)
 162           (if (buffer-modified-p)
 163               (progn (message "Saving modified %s" (buffer-file-name))
 164                      (save-buffer))))
 165       (error
 166        (message ">> Error: %s" (prin1-to-string err))
 167        (message ">>  point at")
 168        (let ((s (buffer-substring (point) (min (+ (point) 100) (point-max))))
 169              (tem 0))
 170          (while (setq tem (string-match "\n+" s tem))
 171            (setq s (concat (substring s 0 (match-beginning 0))
 172                            "\n>>  "
 173                            (substring s (match-end 0)))
 174                  tem (1+ tem)))
 175          (message ">>  %s" s))
 176        (setq error 1)))
 177     (kill-emacs error)))
 178
 179 ;;; infohack.el ends here