http://www.perlmonks.org?node_id=504388

Seventh has asked for the wisdom of the Perl Monks concerning the following question:

Hello monks!

I have the following bit of code that I'm having a bit of trouble with. I'm in Iraq right now, so I apologize if a lot of this is something I can search/read about - internet time and books on Perl are in short supply around here.

Basically I have this script that opens a file called ccrutil.pl, and goes through it looking for a tag of "#CCR", then spits that, and the following line, to an html file.

It _kind of_ works, but I'm having two problems - one is that I get an error that says "Use of uninitialized hash element at extract1.pl line 48, <DATA> line (60, 80, 136)" when executing.

Secondly, it's ignoring my entire top section where I build the html header, and I don't know why. Any insight at all would really be appreciated, and thank you as always! :D 


#!/usr/bin/perl -w

use strict;
use IO::File;
use Data::Dumper;
use Getopt::Long;

open(DATA,"ccrutil.pl") or die $!;  
my $file ="ccrutil.html";
open FILE, ">$file" or die "unable to open $file $!";
print FILE "\<html\>\n"; # Build HTML header
print FILE "\<title\>CCRUTIL.HTML\<\\title\>\n"; 
print FILE "\<body bgcolor\=\"black\"\>\n";
close FILE;

my %functxt;
while (<DATA>) {
    my $line = $_;
    chomp($line);

    if ($line =~ /^\#CCR/)    {
        my ($functionName) = $line =~ /^\#CCR-(.*)/;        
        my $desc = <DATA>;  # pull the next line        
        $functxt{$functionName} = $desc;
    }
}

foreach my $func (keys(%functxt)) {
    my $text = $functxt{$func};
    my $file ="ccrutil.html";
    open FILE, ">$file" or die "unable to open $file $!";
    print FILE "\<b\>Function $func does $text\<\/b\>\n";
    close FILE;
}

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