#!/usr/bin/perl
# change background color.plx
# Program will read in an html file, change background color and print to source file.
# 1. No need for file variable yet: open (INFILE, "<".$htmlFile) or die("Can't read source file!\n");
# /background-color:\s*#([0-9a-f]{6});?/ig
# /background-color:\s*#([0-9a-f]{6}|[0-9a-f]{3});?/ig

use warnings;
use diagnostics;
use strict;

# Declare and initialise variables.
my @htmlLines;

# Open HTML test file - forward slashes do not need to be escaped.
open INFILE, "E:/Documents and Settings/Richard Lamb/My Documents/HTML/dummy1.html" or die "Sod! Can't open this file.\n";
# Assign to an array/list variable.
@htmlLines = <INFILE>;
close (INFILE);

sub changeBackColour
{
  foreach my $line (@htmlLines)
  { # case insensitivity and global search for pattern
    $line =~ s/background-color:\s*\#([0-9a-f]{6}|[0-9a-f]{3});?/background-color:\s*\#FFFFFF;?/ig;
  }
}

changeBackColour();

sub printHTML
{
  for my $i (0..@htmlLines-1)
  {
    print $htmlLines[$i];
  }
}

printHTML();  # prints the reformatted HTML file in DOS window