First, let us do something a bit easier. We'll use the character offset instead of the line number as key to the hash: 

my %hash;
my $re= qr{
     ( /\* .*? \*/) | ( \/\/[^\n]*)           
     | " (?: [^"\\]* | \\. )* "               
     | ' (?: [^'\\]* | \\. )* '               
     | . [^/"']*                              
   }xs;

while(  /$re/g  ) {
    $hash{pos($_)}= $1;
}

[download]
Then there are several ways to convert character offsets into line numbers. If none of your patterns spanned lines, then I'd probably update the regex to match newlines separately so I could increment a line number count in the same loop. But /* */ can span lines so I think I'd instead do a merge-sort-ish thing similar to: 
my @nl;
while(  /\n/g  ) {
    push @nl, pos($_);
}
my $ln= 1;
while(  /$re/g  ) {
    $ln++   while  $nl[$ln-1] < pos($_);
    $hash{$ln}= $1;
}

[download]
Except I think there is probably at least one off-by-one error in that code. For example, pos($_) might need to be replaced with something from @- or @+ in one or both of those places.

I hope it gives you an idea where to start to get what you are looking for.

                - tye

In reply to Re: Regex "(un)Knowledge" (loop) by tye
in thread Regex "(un)Knowledge" by nofernandes

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