(The problem of spam): Fix, reported by Cheng Gao

[gnus] / texi / infohack.el

diff --git a/texi/infohack.el b/texi/infohack.el
index 0fa6af0..6e5705a 100644 (file)
--- a/texi/infohack.el
+++ b/texi/infohack.el
@@ -30,12 +30,19 @@
 (defun infohack-remove-unsupported ()
   (goto-char (point-min))
   (while (re-search-forward "@\\(end \\)?ifnottex" nil t) 
-    (replace-match "")))
+    (replace-match ""))
+  (goto-char (point-min))
+  (while (search-forward "\n@iflatex\n" nil t)
+    (delete-region (1+ (match-beginning 0))
+                  (search-forward "\n@end iflatex\n"))))
 
 (defun infohack (file)
   (let ((dest-directory default-directory)
-       (max-lisp-eval-depth (max max-lisp-eval-depth 600)))
+       (max-lisp-eval-depth (max max-lisp-eval-depth 600))
+       coding-system)
     (find-file file)
+    (setq buffer-read-only nil)
+    (setq coding-system buffer-file-coding-system)
     (infohack-remove-unsupported)
     (texinfo-every-node-update) 
     (texinfo-format-buffer t) ;; Don't save any file.
@@ -43,10 +50,32 @@
     (setq buffer-file-name 
          (expand-file-name (file-name-nondirectory buffer-file-name)
                            default-directory))
+    (setq buffer-file-coding-system coding-system)
     (if (> (buffer-size) 100000)
        (Info-split))
     (save-buffer)))
 
+(eval-and-compile
+  (when (string-match "windows-nt\\|os/2\\|emx\\|cygwin"
+                      (symbol-name system-type))
+    (defun subst-char-in-region (START END FROMCHAR TOCHAR &optional NOUNDO)
+      "From START to END, replace FROMCHAR with TOCHAR each time it occurs.
+If optional arg NOUNDO is non-nil, don't record this change for undo
+and don't mark the buffer as really changed.
+Both characters must have the same length of multi-byte form."
+      (let ((original-buffer-undo-list buffer-undo-list)
+            (modified (buffer-modified-p)))
+        (if NOUNDO
+            (setq buffer-undo-list t))
+        (goto-char START)
+        (let ((from (char-to-string FROMCHAR))
+              (to (char-to-string TOCHAR)))
+          (while (search-forward from END t)
+            (replace-match to t t)))
+        (if NOUNDO
+            (progn (setq buffer-undo-list original-buffer-undo-list)
+                   (set-buffer-modidifed-p modified)))))))
+
 (defun batch-makeinfo ()
   "Emacs makeinfo in batch mode."
   (infohack (car command-line-args-left))