[Haskell-cafe] Re: Has anybody replicated =~ s/../../ or even
something more basic
for doing replacements with pcre haskell regexen?
haskell at list.mightyreason.com
Thu Mar 12 20:19:00 EDT 2009
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:
> Thanks for any advice,
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
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
for "subRegex" which is 30 lines of code.
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