Rename `chinese-cns11643-6' to `=cns11643-6'.

[chise/xemacs-chise.git.1] / lisp / etags.el

diff --git a/lisp/etags.el b/lisp/etags.el
index 08d26b5..0c368cb 100644 (file)
--- a/lisp/etags.el
+++ b/lisp/etags.el
@@ -52,7 +52,7 @@
 ;; Kyle Jones <kyle_jones@wonderworks.com>
 ;;   added "Exact match, then inexact" code
 ;;   added support for include directive.
-;; Hrvoje Niksic <hniksic@srce.hr>
+;; Hrvoje Niksic <hniksic@xemacs.org>
 ;;   various changes.
 
 \f
@@ -190,9 +190,12 @@ the current buffer."
       (when (file-readable-p parent-tag-file)
        (push parent-tag-file result)))
     ;; tag-table-alist
-    (let ((key (or buffer-file-name
-                  (concat default-directory (buffer-name))))
-         expression)
+    (let* ((key (or buffer-file-name
+                   (concat default-directory (buffer-name))))
+          (key (if (eq system-type 'windows-nt)
+                   (replace-in-string key "\\\\" "/")
+                 key))
+          expression)
       (dolist (item tag-table-alist)
        (setq expression (car item))
        ;; If the car of the alist item is a string, apply it as a regexp
@@ -405,7 +408,7 @@ File name returned is relative to tag table file's directory."
 (defun buffer-tag-table-files ()
   "Returns a list of all files referenced by all TAGS tables that 
 this buffer uses."
-  (apply #'nconc
+  (apply #'append
         (mapcar #'tag-table-files (buffer-tag-table-list))))
 
 \f
@@ -502,6 +505,7 @@ this buffer uses."
                            ((string-match "\\.scm\\'" filename)
                             'scheme-mode)
                            (t nil)))
+      (defvar c-mode-syntax-table)
       (set-syntax-table (cond ((and (eq file-type 'c-mode)
                                    c-mode-syntax-table)
                               c-mode-syntax-table)
@@ -598,11 +602,8 @@ Make it buffer-local in a mode hook.  The function is called with no
               (format "%s(default %s) " prompt default)
             prompt)
           tag-completion-table 'tag-completion-predicate nil nil
-          'find-tag-history))
-    (if (string-equal tag-name "")
-       ;; #### - This is a really LAME way of doing it!  --Stig
-       default                 ;indicate exact symbol match
-      tag-name)))
+          'find-tag-history default))
+    tag-name))
 
 (defvar last-tag-data nil
   "Information for continuing a tag search.
@@ -641,7 +642,7 @@ If it returns non-nil, this file needs processing by evalling
          (t
           (setq tag-table-currently-matching-exact t)))
     ;; \_ in the tagname is used to indicate a symbol boundary.
-    (setq exact-tagname (concat "\\_" tagname "\\_"))
+    (setq exact-tagname (format "\C-?\\_%s\\_\C-a\\|\\_%s\\_" tagname tagname))
     (while (string-match "\\\\_" exact-tagname)
       (aset exact-tagname (1- (match-end 0)) ?b))
     (save-excursion
@@ -674,7 +675,9 @@ If it returns non-nil, this file needs processing by evalling
                ;; tag searches?
                (while (re-search-forward tag-target nil t)
                  (and (save-match-data
-                        (looking-at "[^\n\C-?]*\C-?"))
+                        (save-excursion
+                          (goto-char (match-beginning 0))
+                          (looking-at "[^\n\C-?]*\C-?")))
                       ;; If we're looking for inexact matches, skip
                       ;; exact matches since we've visited them
                       ;; already.
@@ -693,6 +696,7 @@ If it returns non-nil, this file needs processing by evalling
               (if next "more " "")
               (if exact "matching" "containing")
               tagname))
+      (beginning-of-line)
       (search-forward "\C-?")
       (setq file (expand-file-name (file-of-tag)
                                   ;; In XEmacs, this needs to be
@@ -735,6 +739,16 @@ If it returns non-nil, this file needs processing by evalling
       (cons buf startpos))))
 
 ;;;###autoload
+(defun find-tag-at-point (tagname &optional other-window)
+  "*Find tag whose name contains TAGNAME.
+Identical to `find-tag' but does not prompt for tag when called interactively;
+instead, uses tag around or before point."
+  (interactive (if current-prefix-arg
+                  '(nil nil)
+                (list (find-tag-default) nil)))
+  (find-tag tagname other-window))
+
+;;;###autoload
 (defun find-tag (tagname &optional other-window)
   "*Find tag whose name contains TAGNAME.
  Selects the buffer that the tag is contained in
@@ -747,7 +761,8 @@ in the tag table that matches the tagname used in the previous find-tag.
 the tag.
 
 This version of this function supports multiple active tags tables,
-and completion.
+and completion. See also the commands `\\[push-tag-mark]' and
+`\\[pop-tag-mark]'.
 
 Variables of note:
 
@@ -771,7 +786,7 @@ Variables of note:
                       '(find-tag find-tag-other-window tags-loop-continue))))
        (push-tag-mark))
     (if other-window
-       (pop-to-buffer tag-buf)
+       (pop-to-buffer tag-buf t)
       (switch-to-buffer tag-buf))
     (widen)
     (push-mark)
@@ -787,7 +802,7 @@ Variables of note:
 
 ;;;###autoload
 (defun find-tag-other-window (tagname &optional next)
-  "*Find tag whose name contains TAGNAME.
+  "*Find tag whose name contains TAGNAME, in another window.
  Selects the buffer that the tag is contained in in another window
 and puts point at its definition.
  If TAGNAME is a null string, the expression in the buffer
@@ -1064,7 +1079,7 @@ See documentation of variable `tag-table-alist'."
 \f
 ;; Sample uses of find-tag-hook and find-tag-default-hook
 
-;; This is wrong.  We should either make this behaviour default and
+;; This is wrong.  We should either make this behavior default and
 ;; back it up, or not use it at all.  For now, I've commented it out.
 ;; --hniksic
 
@@ -1156,7 +1171,7 @@ If this is a C-defined elisp function, it does something more clever."
 (defcustom tag-mark-stack-max 16
   "*The maximum number of elements kept on the mark-stack used
 by tags-search.  See also the commands `\\[push-tag-mark]' and
-and `\\[pop-tag-mark]'."
+`\\[pop-tag-mark]'."
   :type 'integer
   :group 'etags)
 
@@ -1189,6 +1204,7 @@ and `\\[pop-tag-mark]'."
 
 ;;;###autoload (define-key esc-map "*" 'pop-tag-mark)
 
+;;;###autoload
 (defun pop-tag-mark (arg)
   "Go to last tag position.
 `find-tag' maintains a mark-stack seperate from the \\[set-mark-command] mark-stack.
@@ -1203,3 +1219,5 @@ This function pops (and moves to) the tag at the top of this stack."
 \f
 (provide 'etags)
 (provide 'tags)
+
+;;; etags.el ends here