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bug#13412: 24.2; find-tag-regexp fails to find any next matches when mul
From: |
Sarah Weissman |
Subject: |
bug#13412: 24.2; find-tag-regexp fails to find any next matches when multiple files are indexed |
Date: |
Thu, 10 Jan 2013 23:36:53 -0500 |
find-tag-regexp finds the first match, but not subsequent ones. Here's
a simple formula to produce this bug:
In a new directory create files empty.el and test.el where empty.el is
empty and test.el contains the following 5 defuns:
(defun my-find ())
(defun my-find1 ())
(defun my-find2 ())
(defun my-find3 ())
(defun my-find4 ())
Create a tags table for test.el and empty.el:
M-x compile RET etags *.el RET
Visit tags table:
M-x visit-tags-table RET RET
Call find-tag-regexp:
C-M-. my-find RET
Repeat find-tag-regexp:
C-u C-M-.
The first find-tag-regexp finds the first defun, but subsequent calls
report "No more tags matching my-find" even though there should be
more matches.
Note:
*Bug occurs whether empty.el is empty or not.
*If you remove empty.el and recompile tags on only one file the bug goes away.
*Evaluating (list-tags "") makes the bug go away.
For reference, the TAGS file that is produced looks like this:
^L
test.el,109
(defun my-find ^?2,1
(defun my-find1 ^?4,21
(defun my-find2 ^?6,42
(defun my-find3 ^?8,63
(defun my-find4 ^?10,84
^L
empty.el,0
In GNU Emacs 24.2.1 (x86_64-apple-darwin, NS apple-appkit-1038.36)
of 2012-08-27 on bob.porkrind.org
Windowing system distributor `Apple', version 10.3.1187
Configured using:
`configure '--host=x86_64-apple-darwin' '--build=i686-apple-darwin'
'--with-ns' 'build_alias=i686-apple-darwin'
'host_alias=x86_64-apple-darwin' 'CC=gcc -mmacosx-version-min=10.5''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_US.UTF-8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Emacs-Lisp
Minor modes in effect:
shell-dirtrack-mode: t
tooltip-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
M-x c o m p i l e <return> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> e t a g s SPC * . e l <return> M-x v i
i <backspace> s i TAB t - t a g TAB <return> T A G
S <return> C-M-. m y - f i n d <return> C-u C-M-. C-u
C-M-. C-g C-M-. C-g <escape> x f i n d - t a g - r
e g TAB C-a C-k <help-echo> <help-echo> C-g <escape>
x s h e l l <return> l s <return> C-x C-f t e s t .
e l <return> C-p C-n C-p C-SPC C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n M-w M-x r e p o r t - e m a c s
- b u g <return>
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
(No files need saving)
Compilation finished
Making completion list...
Starting a new list of tags tables
Mark set
byte-code: No more tags matching my-find [2 times]
Quit [3 times]
Mark activated
Load-path shadows:
None found.
Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils etags help-mode easymenu view shell pcomplete
compile comint regexp-opt ansi-color ring kfl-project kfl-mode time-date
tooltip ediff-hook vc-hooks lisp-float-type mwheel ns-win tool-bar dnd
fontset image fringe lisp-mode register page menu-bar rfn-eshadow timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help
simple abbrev minibuffer loaddefs button faces cus-face files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process ns
multi-tty emacs)
- bug#13412: 24.2; find-tag-regexp fails to find any next matches when multiple files are indexed,
Sarah Weissman <=