Beefy Boxes and Bandwidth Generously Provided by pair Networks
Come for the quick hacks, stay for the epiphanies.

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
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 

In reply to RE: Extract and modify IMG SRC tags in an HTML document. by johncoswell
in thread Extract and modify IMG SRC tags in an HTML document. by jmpvm

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others cooling their heels in the Monastery: (3)
As of 2023-10-01 03:05 GMT
Find Nodes?
    Voting Booth?

    No recent polls found