Re: [FWP] Comparing strings the hard way

["David L. Nicol" <david@kasey.umkc.edu>]

Ariel Scolnicov wrote:
> 
> Perl's string operations are very powerful, but sometimes they're just
> not good enough.  Case in point: I have 2 strings of the same length.
> I need to know which portions of them are equal, and which are not.
> 
>   @l = map { length } split /[^\c@]/, $a^$b
> 
> gives me the lengths of consecutive equal portions of $a and $b.

 @l = map { length } split /([^\c@]+)/, $a^$b

seems like it gives more useful info for later use w/ substr,
so you can compare them, stuff like


[david@nicol1 david]$ perl -nle 'chomp; $a = $b; $b = $_; $c=0;%l =  map { $c +
= $l=length;($c-$l, substr($a,$c-$l,$l))}split/([^\c@]+)/,$a^$b;print %l'




-- 
                           David Nicol 816.235.1187 nicold@umkc.edu
"I must report that I am in the fortunate position of having logged 
and categorized my nightmares over the past 37 years."
                                                   -- Bob Dehnhardt

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