>On Jun 25, Sally said: > > >when evaluating strings what exactly does /g do at the end of a lot of > >evaluation expressions eg: > > > >$string =~ /(.)/g my $string = "abcd a bcd ab cd"; $string =~ /a/; # finds the first "a" - the a in 'abcd' $string =~ /a/g; # finds all "a"'s in the string The second example is mostly useful if you want to find out how many times a pattern is repeated in a string: my $lCount = () = $string =~ /a/g; # $lCount now equals how many times the string matched, in this case 3 of if you want an array of all the substrings that are the matches: my @asMatches = $string =~ /a/g; # @asMatches is now an array containing 3 elements, each of which is equal to "a" Aaron Craig Programming iSoftitler.com
