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dabbrev-expand, minibuffer, and minibuffer-prompt-properties with inviol


From: Tim Babin
Subject: dabbrev-expand, minibuffer, and minibuffer-prompt-properties with inviolable set
Date: Wed, 10 Jul 2002 09:37:13 -0500 (CDT)

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English, because the Emacs maintainers do not have
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Your bug report will be posted to the address@hidden mailing list,
and to the gnu.emacs.bug news group.

In GNU Emacs 21.1.1 (i386-msvc-nt5.0.2195)
 of 2001-10-22 on buffy
configured using `configure --with-msvc (12.00)'
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: ENU
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

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

running dabbrev-expand in the minibuffer with the inviolable option
set for minibuffer-prompt-properties seems to cause dabbrev-expand to
enter an infinite loop in dabbrev--goto-start-of-abbrev function.
(forward-char -1) returns nil and (bobp) does not return t.

Tim


Recent input:
<return> C-n C-n C-n C-n C-f C-f C-f C-f C-f <return> 
0 <escape> x t a g s - s e a r c h <return> c r a <escape> 
/ <backspace> <backspace> <backspace> <backspace> c 
u s t <escape> / <escape> / <escape> / <escape> / <escape> 
/ C-g C-g C-p C-p C-p C-p C-b C-b C-b C-b C-b <return> 
C-p C-p C-p C-n C-n C-n C-n C-n C-n C-n C-f C-f C-f 
C-f C-f <return> 0 <escape> x t a g s - s e a r c h 
<return> c u <escape> / <help-echo> <menu-bar> <help-menu> 
<report-emacs-bug>

Recent messages:
dabbrev--abbrev-at-point: Quit
execute-extended-command: Quit
dabbrev-expand: No dynamic expansion for `cra' found
call-interactively: Text is read-only
dabbrev-expand: No further dynamic expansion for `cust' found
execute-extended-command: Quit
keyboard-quit: Quit
minibuffer-avoid-prompt: Quit
execute-extended-command: Quit
Loading c:/opt/emacs-21.1/lisp/mail/emacsbug.elc...done




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