From: "Clément Pit-Claudel" <cpitclaudel@gmail.com>
To: emacs-devel@gnu.org
Subject: Re: Scan of regexps in emacs
Date: Sun, 10 Mar 2019 22:56:17 -0400 [thread overview]
Message-ID: <58352543-82ea-6595-cc71-f3d1949338d0@gmail.com> (raw)
In-Reply-To: <e2c22e99-6db7-938f-6d1d-b6624ce6fc94@cs.ucla.edu>
On 10/03/2019 22.45, Paul Eggert wrote:
> - (while (string-match (concat "\\(^" comint-prompt-regexp
> + (while (string-match (concat "\\(" comint-prompt-regexp
> "\\)\\1+")
> string)
I think your change altered the meaning of that regexp. Was that intentional? Or am I misunderstanding? The manual says this:
For historical compatibility reasons, ‘^’ can be used only at the beginning of the regular expression, or after ‘\(’, ‘\(?:’ or ‘\|’.
…and indeed (string-match-p "\\(^abc\\)" "xabc") is nil but (string-match-p "\\(abc\\)" "xabc") is 1.
Clément.
next prev parent reply other threads:[~2019-03-11 2:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-09 13:26 Scan of regexps in emacs Mattias Engdegård
2019-03-09 14:56 ` Alan Mackenzie
2019-03-09 15:09 ` Alan Mackenzie
2019-03-10 11:19 ` Mattias Engdegård
2019-03-09 17:06 ` Paul Eggert
2019-03-09 17:46 ` Alan Mackenzie
2019-03-11 2:45 ` Paul Eggert
2019-03-11 2:56 ` Clément Pit-Claudel [this message]
2019-03-11 3:37 ` Paul Eggert
2019-03-11 8:39 ` Mattias Engdegård
2019-03-11 8:51 ` Mattias Engdegård
2019-03-11 22:49 ` Paul Eggert
2019-03-12 10:21 ` Mattias Engdegård
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