my($version, $int) = /
##

my($version) = /##

my($version) = /##

#!/usr/bin/perl -w
foreach  (
  '',
  '',
  q<>,
) {
    if(/ \s+ [a-zA-Z][^\s\/=>'"]*  \s* = \s* (?: " [^"]* " | ' [^']* ' ) )*?
      \s+  version \s* = \s* (?:"([^"]*)"|'([^']*)') /x) {
        print "Match '$+' in $_\n";
    } else {
        print "No match in $_\n";
    }
}

####

Match '24.0' in 
Match '24.0' in 
Match '24.0' in