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Re: 21.1 incorrect Regular expression parsing
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From: |
Jari Aalto+mail.emacs |
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Subject: |
Re: 21.1 incorrect Regular expression parsing |
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Date: |
Mon, 10 Dec 2001 19:59:45 +0200 |
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User-agent: |
Gnus/5.090004 (Oort Gnus v0.04) Emacs/20.7 (i386-*-nt5.0.2195) (i386-*-nt5.0.2195) |
* 2001-12-09 Stefan Monnier <monnier+gnu.emacs.bug/news/@RUM.cs.yale.edu>
*
<http://search.dejanews.com/msgid.xp?MID=%3C5l667gw3y7.fsf@rum.cs.yale.edu%3E&format=threaded>
>>>>>> "Jari" == Jari Aalto+mail <jari.aalto@poboxes.com> writes:
>
>> Following statement does not signal error. It should, because
>> it is not a valid regular expression
>> (string-match "[0-9]++" "12")
>
| Where have you seen it documented as "not valid" ?
I'm not sure I understand your question. If you mean that we need a
section from POSIX documentation before, I'm afraid I cannot provide
one. I guess the official chapter may label the behavior "undefined."
I understand this to be a regular expressing bug and It would be good
if Emacs signalled error.
For reference - I checked XEmacs 21.4.3 and it signals error.
Jari