X-Git-Url: https://cgit.sxemacs.org/?p=gnus;a=blobdiff_plain;f=texi%2Finfohack.el;h=31e301146cd78745d0c9064a29a8070be352c1ae;hp=6e5705a3fad838dd80ad1a53a6e81c5f0df669bf;hb=2e087cb0e6a334fd151911b19ed234b88fb292fd;hpb=6e2fe9089576baab27befa69a7b84562f292a2a7

diff --git a/texi/infohack.el b/texi/infohack.el
index 6e5705a3f..31e301146 100644
--- a/texi/infohack.el
+++ b/texi/infohack.el
@@ -1,5 +1,5 @@
 ;;; infohack.el --- a hack to format info file.
-;; Copyright (C)  2001  Free Software Foundation, Inc.
+;; Copyright (C) 2001-2011 Free Software Foundation, Inc.
 
 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
 ;; Keywords: info
@@ -8,7 +8,7 @@
 
 ;; GNU Emacs 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)
+;; the Free Software Foundation; either version 3, or (at your option)
 ;; any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
@@ -18,8 +18,8 @@
 
 ;; You should have received a copy of the GNU General Public License
 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
@@ -27,6 +27,39 @@
 
 (require 'texinfmt)
 
+(if (fboundp 'texinfo-copying)
+    nil
+  ;; Support @copying and @insertcopying for Emacs 21.3 and lesser and
+  ;; XEmacs.
+  (defvar texinfo-copying-text ""
+    "Text of the copyright notice and copying permissions.")
+
+  (defun texinfo-copying ()
+    "Copy the copyright notice and copying permissions from the Texinfo file,
+as indicated by the @copying ... @end copying command;
+insert the text with the @insertcopying command."
+    (let ((beg (progn (beginning-of-line) (point)))
+	  (end  (progn (re-search-forward "^@end copying[ \t]*\n") (point))))
+      (setq texinfo-copying-text
+	    (buffer-substring-no-properties
+	     (save-excursion (goto-char beg) (forward-line 1) (point))
+	     (save-excursion (goto-char end) (forward-line -1) (point))))
+      (delete-region beg end)))
+
+  (defun texinfo-insertcopying ()
+    "Insert the copyright notice and copying permissions from the Texinfo file,
+which are indicated by the @copying ... @end copying command."
+    (insert (concat "\n" texinfo-copying-text)))
+
+  (defadvice texinfo-format-scan (before expand-@copying-section activate)
+    "Extract @copying and replace @insertcopying with it."
+    (goto-char (point-min))
+    (when (search-forward "@copying" nil t)
+      (texinfo-copying))
+    (while (search-forward "@insertcopying" nil t)
+      (delete-region (match-beginning 0) (match-end 0))
+      (texinfo-insertcopying))))
+
 (defun infohack-remove-unsupported ()
   (goto-char (point-min))
   (while (re-search-forward "@\\(end \\)?ifnottex" nil t) 
@@ -36,14 +69,42 @@
     (delete-region (1+ (match-beginning 0))
 		   (search-forward "\n@end iflatex\n"))))
 
+(defun infohack-include-files ()
+  "Insert @include files."
+  (goto-char (point-min))
+  (set-syntax-table texinfo-format-syntax-table)
+  (let (start texinfo-command-end filename)
+    (while (re-search-forward "^@include" nil t)
+      (setq start (match-beginning 0)
+	    texinfo-command-end (point)
+	    filename (texinfo-parse-line-arg))
+      (delete-region start (point-at-bol 2))
+      (message "Reading included file: %s" filename)
+      (save-excursion
+	(save-restriction
+	  (narrow-to-region
+	   (point)
+	   (+ (point) (car (cdr (insert-file-contents filename)))))
+	  (goto-char (point-min))
+	  ;; Remove `@setfilename' line from included file, if any,
+	  ;; so @setfilename command not duplicated.
+	  (if (re-search-forward "^@setfilename" (point-at-eol 100) t)
+	      (delete-region (point-at-bol 1)
+			     (point-at-bol 2))))))))
+
 (defun infohack (file)
   (let ((dest-directory default-directory)
 	(max-lisp-eval-depth (max max-lisp-eval-depth 600))
 	coding-system)
+    ;; Emacs 21.3 doesn't support @documentencoding
+    (unless (get 'documentencoding 'texinfo-format)
+      (put 'documentencoding 'texinfo-format 
+	   'texinfo-discard-line-with-args))
     (find-file file)
     (setq buffer-read-only nil)
     (setq coding-system buffer-file-coding-system)
     (infohack-remove-unsupported)
+    (infohack-include-files)
     (texinfo-every-node-update) 
     (texinfo-format-buffer t) ;; Don't save any file.
     (setq default-directory dest-directory)
@@ -51,7 +112,9 @@
 	  (expand-file-name (file-name-nondirectory buffer-file-name)
 			    default-directory))
     (setq buffer-file-coding-system coding-system)
-    (if (> (buffer-size) 100000)
+    (if (> (buffer-size) (if (boundp 'Info-split-threshold)
+			     (+ 50000 Info-split-threshold)
+			   100000))
 	(Info-split))
     (save-buffer)))