Dear Monks,
Is there a nice clean way to do a replace after match, sort of like this nice clean but non-working code:
#!/usr/bin/perl -w
use strict;
my %fixers=(
'amazon.com' => 'danube.com',
'ibm.com' => 'bm.com',
);
my $text = qq(
Blah <a href="http://amazon.com/foo">one</a>
<a href="http://ebay.com/foo">two</a>
);
sub tweak_links($)
{
my $text_ref = shift;
while( $$text_ref =~ m|"http://(.*?)["/]|g ) {
if( $fixers{$1} ) {
$1 = $main::fixers{$1};
}
}
}
tweak_links(\$text);
I'm looking for something that's good when most of the matches never happen, but I can zero in on the right section with a match. In my case I even know which of the replacements is most likely on a particular text block (but all of them could happen in each block.
Is there a usual way this is done?
Keywords: perl regex replacement regular expression table-driven match multiple replacements
-
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.
|