Hello again!!
I have this regex that tries to get the lines of a program with comments..
sub extract_comments {
my $filename = shift;
local (*F, $/);
open F, "< $filename" or warn("can't read $filename: $!"),
return;
@hello1=grep defined, <F> =~ m{
( \# .*? \n ) # extract a comment starting in #
#and finishing in an enter
| " (?: [^"\#]* | \#. )* " # skip over "..."
| ' (?: [^'\#]* | \#. )* ' # skip over '...'
| . [^\#"']* # skip over non-comments-or-quotes
}xgs;
$tam=@h...;
print "Tam: $tam\n";
return @hello;
}
$file="ex1.pl";
@ola=extract_comments($file);
foreach $line (@ola){
print"$line\n";
}
But the problem is that this doesn´t work very well!! Can somebody tell me why?
Another thing is how can i catch the line number when the regex has match??
Thank you all!
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! —
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.