Just noticed a comment in
http://www.serpentine.com/blog/2007/02/27/a-haskell-regular-expression-tutor...
which says there's no perl-like regex replace in the library, and links to
http://hpaste.org/697
which is an attempt at providing one.
Not sure if this is useful or not.
2007/3/7, Thomas Hartman
Okay, so much for PCRE match.
Can someone show me give me pointers on PCRE replace?
Ideal would be something with all the =~ s/// semantics from perl. (Not sure if this is included in Text.Regex.PCRE. is it?)
In other words, how to do this with (preferrably) Text.Regex.PCRE ?
Of course in this case a POSIX regex is fine, but since PCRE is faster and more expressive, and what I'm used to anyway, PCRE is probably is what I will tend to use by default, unless portability is paramount.
**************************** thartman@linodewhyou:~/learning/haskell/UnixTools$ cat lines.txt a b c a b c a b c
thartman@linodewhyou:~/learning/haskell/UnixTools$ cat lines.txt | perl -ne '$_ =~ s/(\w) (\w) (\w)/$1 z $3/; print $_' a z c a z c a z c thartman@linodewhyou:~/learning/haskell/UnixTools$