Hi, I have an easy question but I can't wrap my head around it. :/) Suppose in my HTML I want each <img> tag to be wrapped in an tag. The following code should work but it doesn't? error: Can't replace an item with its parent! at build_lightbox.pl line 11. How can I fix it, thx. 
#!/usr/bin/perl -w
use strict;
use HTML::TreeBuilder;
use HTML::Element;
my $root = HTML::TreeBuilder->new_from_file("index.section.html");
my @imgs = $root->find_by_tag_name('img');
foreach my $img (@imgs) {
my $new_parent = HTML::Element->new('a', 'href' => $img->attr('src'), 
+'rel' => 'lightbox');
$img->attr('class',"thumbnail");
$new_parent->push_content($img);
$img->replace_with($new_parent);
}
print $root->as_HTML();
$root->delete; # erase this tree because we're done with it

[download]
The HTML is like: 
<html>
<body>
<h2> Ajax Requests</h2>
<img src="Daily/_Ajax_Requests.svg" alt="Daily  Ajax Requests">
<img src="Hourly/_Ajax_Requests.svg" alt="Hourly  Ajax Requests">
<img src="Group_by_Min/_Ajax_Requests.svg" alt="Group_by_Min  Ajax Req
+uests">
</body>
</html>

[download]

In reply to HTML Element replace by Peamasii

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.