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Re: Sample functions for String Parsers in Lisp
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From: |
Andreas Politz |
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Subject: |
Re: Sample functions for String Parsers in Lisp |
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Date: |
Wed, 14 Oct 2009 01:18:25 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) |
Nordlöw <per.nordlow@gmail.com> writes:
> Reason: I am writing a parser that converts Emacs regexps (back) into
> rx expressions. I need this for my file magic pattern matcher in order
> to read as little data as possible from the file (locality) and do
> several matchings in parallel.
>
[...]
> Any suggestions?,
> Nordlöw
Yes, save yourself the headache and make the assumption, that all magic
pattern are fully contained in the first n bytes of the file.
-ap