Thomas Hartman wrote:
Is there something like subRegex... something like =~ s/.../.../ in
perl... for haskell pcre Regexen?
I mean, subRegex from Text.Regex of course:
http://hackage.haskell.org/cgi-bin/hackage-scripts/package/regex-compat
Thanks for any advice,
thomas.
Short answer: No.
This is a FAQ. The usual answer to your follow up "Why not?" is that the design
space is rather huge. Rather than justify this statement, I will point at the
complicated module:
http://hackage.haskell.org/packages/archive/split/0.1.1/doc/html/Data-List-Split.html
The above module is "a wide range of strategies for splitting lists", which is a
much simpler problem than your subRegex request, and only works on lists. A
subRegex library should also work on bytestrings (and Seq).
At the cost of writing your own routine you get exactly what you want in a
screen or less of code, see
http://hackage.haskell.org/packages/archive/regex-compat/0.92/doc/html/src/Text-Regex.html#subRegex
for "subRegex" which is 30 lines of code.
Cheers,
Chris
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