[Haskell-cafe] regular expression sub-expression matching

Nicolas Bock nicolasbock at gmail.com
Sat Jan 19 00:25:31 CET 2013

Hello list,

I was wondering whether there is a way to do what the following python code
does in haskell:

import re

result = re.compile("M\(([0-9]+),([0-9]+)\) *=
*([0-9.eE-]+);").search("M(1,2) = 0.1e-3;")
if result:
  print(result.group(1), result.group(2), result.group(3))

Basically I would like to pattern match parts of a string and return the
matches. I have looked at Text.Regex.Posix but (of course I might just not
have understood the functions in there properly) it seems as if it does not
provide anything like python's re module.

Thanks already,

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