A colleague came up with the question whether I could give him a script removing JavaScript Comments.

Here is what I gave him after discussing that he didn't use regexes in his JS programs (so no need to take car of // being somthing else than a comment).

Maybe someone more perlish than me likes to add his or her comments to it!? 

#!perl
use strict;

my $qs =qr/'(?:[^']|\\')*'/;
my $qqs=qr/"(?:[^"]|\\")*"/;
my $ncs=qr<(?:[^'"/]|/[^/*])>; #'
my $nocomment=qr/(?:$ncs|$qqs|$qs)*/;

my $hit;

while (<>) {
        # remove multiline /* comment
        if ($hit= s{^($nocomment)/\*(?:[^*]|\*[^/])*$}{$1}o ... s{^.*?
+\*/}{}) {
                redo if $hit=~ /E0/i;
                $_="\n" if $hit>1;
                print;
                next;
        }
        # remove one-line /*...*/ comment
        1 while s{^($nocomment)/\*.*?\*/}{$1}o;
        # remove // comment
        s{^($nocomment)//.*}{$1}o;
        print;
}

[download]

In reply to strip JS-comments by Skeeve

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