Thank you very much for your help!

Your code works fine with the variable.. but when i try to read a file, the number of the lines are wrong!

For example if i put the content of your variable $sluperdfile and add only one line such as //Hello:

#Content of the file test.txt
Blah blah blah
//Hello
blah blah Blah // single line c++ comment
more blahs "quoted string with /* " blah
blah blah blah /* single line c comment */ blah
blah blah /*
    multi line
    c style comment */
some more blahs
// another single line c++ comment
blah blah blah
[download]

And now the source code:

use strict;

undef $/;#In order to read the whole file at once
open(F,"test.txt");

my @matches =  <F> =~
m{
     ( /\* .*? \*/) | ( \/\/[^\n]*)
     | " (?: [^"\\]* | \\. )* "
     | ' (?: [^'\\]* | \\. )* '
     | . [^/"']*
   }xgs;
@matches = grep {defined $_} @matches; #get rid of undefs
my $linenum = 1;

foreach my $match (@matches) {

        $slurpedfile =~ /\Q$match/;
        my $before = $`;
        $slurpedfile = $';
        my $matched = $&;
        $linenum += $before =~ tr/\n/\n/;
        print "Line $linenum\t$match\n";
        $linenum += $match =~ tr/\n/\n/;
}
[download]

How can i grab the line numbers correctly! What variable should i put instead of $slurpedfile? According that i want to read directly from a file?

And another issue.. Is it possible to the output be something like this:

Line 12        //Hello
Line 23        // single line c++ comment
Line 34        /* single line c comment */
Line 45        /*
Line 46          multi line
Line 47                  c style comment */
Line 58        // another single line c++ comment
[download]

Instead of:

Line 12        //Hello
Line 23        // single line c++ comment
Line 34        /* single line c comment */
Line 45        /*
    multi line
    c style comment */
Line 58        // another single line c++ comment
[download]

Thank you.. for your help...

Nuno

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.