Hello,

Do I need to explain how it works?

Aziz,,, 

#!/usr/bin/perl -w
use strict;
print `cat $0`;
print "\nOUTPUT:\n";
while(<DATA>){
   chomp;
   print "$_\n" if is_fibo($_);
}
sub is_fibo {
   my ($str,$r,$s) = (shift, -1, 0);
   ($r,$s) = ($s,$r+$s+1)
      while $str =~ s#^((.)\2{$s})## and $str !~ /^\Q$2\E/;
   return not length $str;
}
__DATA__
Pass
abaabbbaaaaabbbbbbbbaaaaaaaaaaaaa
a aa   aaaaa
@!%%+++*****
Isee
Fail
aaaaaaaaaaaa
abbcccddddd
ab

OUTPUT:
Pass
abaabbbaaaaabbbbbbbbaaaaaaaaaaaaa
a aa   aaaaa
@!%%+++*****
Isee
ab

In reply to Re: (Golf) Fibonacci Strings by abstracts
in thread (Golf) Fibonacci Strings by danger

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