bounds-of-thing-at-point from thingatpt.el broken

[P.L.Hayes]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

(bounds-of-thing-at-point 'url) fails to find the bounds of URLs
beginning with, "http://"; (it has worked fine before today). The cause
appears to be a spurious backquote in this defun:

 (defun thing-at-point-bounds-of-url-at-point ()
  (let ((strip (thing-at-point-looking-at
                         thing-at-point-markedup-url-regexp))) ;; (url "") short
    (if (or strip
`           (thing-at-point-looking-at thing-at-point-url-regexp)
            ;; Access scheme omitted?
            ;; (setq short (thing-at-point-looking-at
            ;;           thing-at-point-short-url-regexp))
            )
        (let ((beginning (match-beginning 0))
              (end (match-end 0)))
          (when strip
            (setq beginning (+ beginning 5))
            (setq end (- end 1)))
          (cons beginning end)))))

(also from thingatpt.el). It works okay again when I remove that
backquote.

If emacs crashed, and you have the emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/22.0.50/etc/DEBUG for instructions.


In GNU Emacs 22.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.8.20)
 of 2006-09-13 on wolfbone
X server distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure '--prefix=/usr' '--host=i686-pc-linux-gnu' 
'--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' 
'--sysconfdir=/etc' '--localstatedir=/var/lib' 
'--program-suffix=.emacs-22.0.50' '--without-carbon' '--with-x' '--with-xpm' 
'--with-toolkit-scroll-bars' '--with-jpeg' '--with-tiff' '--with-gif' 
'--with-png' '--with-x-toolkit=gtk' '--build=i686-pc-linux-gnu' 'CFLAGS=-O2' 
'build_alias=i686-pc-linux-gnu' 'host_alias=i686-pc-linux-gnu''

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_GB.utf8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  show-paren-mode: t
  msb-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: identity

Recent input:
<down-mouse-5> <mouse-5> <down-mouse-5> <mouse-5> <down-mouse-4> 
<mouse-4> <help-echo> <down-mouse-5> <mouse-5> <down-mouse-5> 
<mouse-5> <down-mouse-5> <mouse-5> <down-mouse-5> <mouse-5> 
<down-mouse-4> <mouse-4> <double-down-mouse-4> <double-mouse-4> 
<down-mouse-4> <mouse-4> <double-down-mouse-4> <double-mouse-4> 
<help-echo> <down-mouse-5> <mouse-5> <down-mouse-4> 
<mouse-4> <down-mouse-5> <mouse-5> <down-mouse-4> <mouse-4> 
<down-mouse-5> <mouse-5> <help-echo> <down-mouse-4> 
<mouse-4> <help-echo> <help-echo> <help-echo> <tool-bar> 
<undo> <down-mouse-5> <mouse-5> <help-echo> <down-mouse-1> 
<mouse-1> C-x k <return> C-x k <return> C-x 0 M-x b 
u g <tab> <backspace> <backspace> <backspace> e m a 
c s - b u g <tab> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> r e p o r t <tab> <tab> <down-mouse-4> 
<mouse-4> <down-mouse-1> <mouse-movement> <mouse-movement> 
<drag-mouse-1> <help-echo> <down-mouse-1> <mouse-1> 
<return>

Recent messages:
Result: 113 (#o161, #x71, ?q) [2 times]
Result: nil [2 times]
Result: 113 (#o161, #x71, ?q)
call-interactively: Buffer is read-only: #<buffer thingatpt.el.gz>
Mark set
thing-at-point-bounds-of-url-at-point
byte-code: Beginning of buffer
(1 . 25)
Undo!
Loading emacsbug...done