#!/usr/bin/perl
# write mods to HTML file.plx
# Program will read in an html file, remove the img tag and rewrite HTML on E-drive.
# 1. No need for file variable yet: open (INFILE, "<".$htmlFile) or die("Can't read source file!\n");
# 2. Alternative: m/<A\s+HREF=[^>]+>(.*?)<\/A>/  - Will not remove closing tag though - why?
# 3. Why is interpreter flipping-out over an 'undefined variable', when
#    original regexp, m/<A\s+HREF=[^>]+>(.*?)<\/A>/, is known to work. What am I missing?

use warnings;
use diagnostics;
use strict;

# Declare and initialise variables.
my $pattern1 = '<IMG\s+(.*)>';
my $pattern2 = '<A\s+HREF\s*=[^>]+>';
my $pattern3 = '</A>';
my @htmlLines;

# Open HTML test file and read into array.
open INFILE, "E:/Documents and Settings/Richard Lamb/My Documents/HTML/dummy1.html" or die "Sod! Can't open this file.\n";
@htmlLines = <INFILE>;

# Call tag-scrapping subs
scrapImageTag();
scrapAnchorTag();

# Removes image tag elements in array
sub scrapImageTag
{ # interates through each element (i.e. HTML line) in array
  foreach my $line (@htmlLines)
  {
    # replace <IMG ...> with nothing.
    $line =~ s/$pattern1//ig;  # case insensitivity and global search for pattern
  }
}

# Removes anchor tag elements in array
sub scrapAnchorTag
{ # interates through each element (i.e. HTML line) in array
  foreach my $line (@htmlLines)
  {
    # replace <A HREF ...> with nothing.
    $line =~ s/$pattern2//ig;  # case insensitivity and global search for pattern
    $line =~ s/$pattern3//ig;  # case insensitivity and global search for pattern
  }
}

# Replacing original file with reformatted file!
open (OUTFILE, ">E:/Documents and Settings/Richard Lamb/My Documents/HTML/dummy1.html") or die("Can't rewrite the HTML file.\n");
print (OUTFILE @htmlLines);

close (INFILE);
close (OUTFILE);