Sorry, it ate my submission, and I'm still new here...
Here's how I would do it:
1. Read in the whole HTML file into a variable:
open FILE,"filename";
read FILE,$file,100000;
close FILE;
(I've seen few HTML docs that are over 100000 bytes in size)
2. Split the $file by "<IMG":
@lines = split(/\<IMG/,$file);
3. Shift out the first line of @lines (it doesn't have an <IMG> tag in it, so we don't need it) and begin to create the new HTML file
$newfile = shift @lines;
4. For each line in @lines:
Split the line at the first ">"
Replace the "SRC=" element with the new "SRC=" element, assuming that the new graphic is based on the old graphic's URL
foreach $line (@lines) {
$pos = index($line,'>');
$tag = substr($line,0,$pos+1);
$restofline = substr($line,$pos+1);
$tag =~ s/SRC\=\"(.*?)\"/SRC\=\"$newurls{$1}\"/gi;
$newfile .= $tag . $restofline . "\n";
}
5. Do whatever with the $newfile:
print $newfile;
Complete code:
open FILE,"filename";
read FILE,$file,100000;
close FILE;
@lines = split(/\<IMG/,$file);
$newfile = shift @lines;
foreach $line (@lines) {
$pos = index($line,'>');
$tag = substr($line,0,$pos+1);
$restofline = substr($line,$pos+1);
$tag =~ s/SRC\=\"(.*?)\"/SRC\=\"$newurls{$1
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