From: Andreas Schwab <schwab@suse.de>
Cc: bug-gnu-emacs@gnu.org
Subject: Re: posix-string-match does not distinguish "*" from "*?"
Date: Mon, 17 Feb 2003 14:59:41 +0100 [thread overview]
Message-ID: <jeel67ros2.fsf@sykes.suse.de> (raw)
In-Reply-To: <m2fzqo937a.fsf@beth.swift.xxx> (Matt Swift's message of "Sun, 16 Feb 2003 00:58:33 -0500")
Matt Swift <swift@alum.mit.edu> writes:
|> `posix-string-match' (and I presume the other `posix-*' searching
|> functions) do not seem to distinguish between the "*" and "*?"
|> operators. No mention is made of this difference from `string-match'
|> in the Elisp manual, which describes the posix- functions as having
|> super-greedy repetition constructs and handling of "|", but a reader
|> would not guess that these functions differ with respect to the
|> explicitly non-greedy operators "*?", "+?" and "??". Since I do not
|> have access to the POSIX specs, someone else will have to discern
|> whether this is a dox bug or a bug in `posix-string-match'.
POSIX does not define any of these non-greedy operators:
The behavior of multiple adjacent duplication symbols ('+', '*', '?',
and intervals) produces undefined results.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
prev parent reply other threads:[~2003-02-17 13:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-16 5:58 posix-string-match does not distinguish "*" from "*?" Matt Swift
2003-02-17 13:59 ` Andreas Schwab [this message]
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