tphyahoo wrote:
So the core question (speaking as a perler) is how do you write
my $s= 'abcdefg'; $s =~ s/a/z/g; $s =~ s/b/y/g; print "$s\n";
in haskell? There are various haskell regex libraries out there,
But that's such a perler attitude. When all you have is a regex, everything looks like a s///! This really doesn't look like much of a regex question to me. A more haskelly answer might be as simple as: m 'a' = 'z' m 'b' = 'y' m x = x test1 = map m "abcdefg" ...which is general in the sense that 'm' can be an arbitrary function from Char -> Char, and avoids the 'overlapping replace' behaviour alluded to elsewhere in this thread, but is limited if you wanted to do string-based replacement. To do string-based replacement you do have to think careful about what semantics you're expecting though (w.r.t. overlapping matches, repeated matches, priority of conflicting matches). Jules