You could use a CPAN module, such as XML::Twig. The following code unconditionally replaces the text of all instances of 'count' elements with the value 14.
use strict;
use warnings;
use XML::Twig;
my $xmlStr = <<XML;
<project>
<run_count>
<count>13</count>
</run_count>
</project>
XML
my $twig= new XML::Twig(
PrettyPrint => 'indented',
twig_handlers => { count => \&count }
);
$twig->parse($xmlStr);
$twig->print();
exit;
sub count {
my ($twig, $cnt) = @_;
$cnt->set_text(14);
}
__END__
<project>
<run_count>
<count>14</count>
</run_count>
</project>
Side note: Welcome to the Monastery. In general, it is better to use 'code' tags instead of 'pre' tags when posting code. (see Perl Monks Approved HTML tags)
-
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.
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