Re: [Caml-list] Str.string_match raising Invalid_argument "String.sub" in gc

[Markus Mottl <markus@mail4.ai.univie.ac.at>]

On Wed, 22 Aug 2001, neale-caml@woozle.org wrote:
> Hi, I'm converting over some examples from the Perl cookbook to learn
> OCaml and help with the PLEAC project <http://pleac.sourceforge.net/>,
> and I'm running into some strange behavior with the Str structure;
> I think it's something to do with garbage collection.

I think it might be more suitable to translate the PLEAC-examples to
OCaml using the PCRE-library (Perl Compatible Regular Expressions):
it's much easier to get things right (e.g. no problems with evaluation
order as you just had - the PCRE is stateless). You also don't have
to think Emacs-style with regular expressions. Furthermore, Perl
supports regexp features that are not available in the Str-module:
without the PCRE-library you'd have to write significantly more code
for some PLEAC-examples.

You can find the PCRE-library here:

  http://www.ai.univie.ac.at/~markus/home/ocaml_sources.html

Best regards,
Markus Mottl

-- 
Markus Mottl                                             markus@oefai.at
Austrian Research Institute
for Artificial Intelligence                  http://www.oefai.at/~markus
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