How to make regexes faster? (Python v. OmniMark)
M.-A. Lemburg
mal at lemburg.com
Thu Apr 25 06:53:40 EDT 2002
Andrew Dalke wrote:
>
> Now, mxTextTools. Three attempts. First two failures took a week,
> thereabouts. The final success took another couple weeks to get a
> working regexp parser (yes, on top of mxTextTools) going. Let's
> call it three weeks. And this was after knowing a lot about how
> those As work.
>
> But I gotta say, mxTextTools is amazingly fast and flexible. On
> one test it was only 50% slower than fgrep for a simple text search.
> (Not quite a direct comparison because the Python code was doing
> other things as well.)
Side-note: fgrep uses assembler on some platforms whereas mxTextTools
relies on the quality of the C optimizer to reach top speeds.
--
Marc-Andre Lemburg
CEO eGenix.com Software GmbH
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