I would use a regex to eliminate characters from one string that appear in another. If that one string becomes empty at the end, then we know that all the characters in it occurred in the other string. So, I use this logic to decide whether the string matches all characters or not. In the following example, the "Hello World" string contains all of these characters: o r e H

What this little program does not do is that it does not count how many letters are matched. So, if you want to know if a string contains at least 5 letter A's and 3 B's and 2 C's, then this program is not going to work... 

#!/usr/bin/perl -w

use strict;
use warnings;


my $SAMPLE = "Hello World\r\n";
my $MATCHALL = "oreH";

$MATCHALL =~ s/[\Q$SAMPLE\E]+//g;

if (length($MATCHALL) == 0)
{
  print "\nCONTAINS ALL THE CHARACTERS\n";
}
else
{
  print "\nDOES NOT CONTAIN ALL THE CHARACTERS\n";
}

exit;

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In reply to Re: string containing characters by harangzsolt33
in thread string containing characters by IvanH

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