regexp easy one (I think)

Posted on 2000-03-09
Last Modified: 2010-03-05
This line sets the variable buffer to everything in between the "</HEAD>" tag and the </BODY> tag in a file.  

$buffer =~ m/<\/HEAD>(.*)<\/BODY>/is;

I have a problem in that some of my documents don't have </BODY> tags and some do... I need the line to do this (here is the english)

$buffer is equal to all text in between the </HEAD> tag and either the </BODY> tag, if there is one OR this string: /commonfooter.cgi

Question by:georgia
  • 2
LVL 19

Accepted Solution

Kim Ryan earned 50 total points
ID: 2603064
The | symbol gives you  alternation (OR) in regular expressions.
$buffer =~ m/<\/HEAD>(.*)(<\/BODY>|\/commonfooter.cgi)/is;

Expert Comment

ID: 2603143
teraplane, you should escape the literal '.'

Author Comment

ID: 2603146
Thanks a bunch!
LVL 19

Expert Comment

by:Kim Ryan
ID: 2603171
well spotted PC,
$buffer =~ m/<\/HEAD>(.*)(<\/BODY>|\/commonfooter\.cgi)/is;

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