I'm trying to create a regex, based off running another set of regexs on a given string.
And basically dynamically come up with a shortened regex that will match the original string.

The problem is i'm seeing an odd behavior. 

#!/usr/bin/perl -w

my $string = '/path/file.htm?849578345908543095364b892a898374aff849000
+1289384add90e93448a839457582993cde90239a90459c3849aa8374f783477346723
+f38923487dd8923847a892837f783746543ff89283a439823cd948399134452&acces
+s_rights=1&mn_ord=yes&session_id=84';

$string =~ s/[^ a-zA-Z0-9_=&\-]/sprintf("\\%s", $&)/eg; # #escape char
+s
print "$string\n"; #debug
$string =~ s/([A-Za-z0-9][^&\/\.]){10,}/sprintf(".*", $&)/eg;
$string =~ s/([0-9]){2,}/sprintf("\\d+", $&)/eg;
print "\n$string\n";#debug

[download]


The problem is it returns
\/path\/file\.htm\?.*2&access_rights=1&mn_ord=yes&session_id=\d+
I'm having difficultly understanding why it wouldn't return
\/path\/file\.htm\?.*&access_rights=1&mn_ord=yes&session_id=\d+

In reply to help in understanding odd regex match by jaco

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