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Re: skip-chars-forward v. re-search-forward
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From: |
Andreas Schwab |
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Subject: |
Re: skip-chars-forward v. re-search-forward |
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Date: |
Wed, 02 Apr 2003 21:49:23 +0200 |
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User-agent: |
Gnus/5.090017 (Oort Gnus v0.17) Emacs/21.3.50 (gnu/linux) |
Dave Love <d.love@dl.ac.uk> writes:
|> I've tended to use skip-chars-forward instead of re-search-forward
|> since it's byte-coded and I assumed it's more efficient. However, I
|> made a measurement and found that skip-chars-forward was actually
|> slower than re-search-forward.
Both skip-chars-forward and re-search-forward are builtin functions. But
re-search-forward uses a cache for recently used regexps to avoid the
overhead of compiling it, whereas skip-chars-forward always sets up the
search map anew.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
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