Hi monks,

In this task, I want to capture any length pattern that continually repeated $NeedRepeat times to @res. My code works, but looks really expensive. Any better approach for this ? 

use strict;

# start config
my $NeedRepeat = 5 ;
my $String = "ABCABCABC1231234123123ABCABCABC123TestTestTestTestTest12
+34123123123121212121212121212121ppppp";
# end config 

my $strMaxLen = length ( $String );
my (@res,%temp);

foreach my $startPos ( 0 .. $strMaxLen ) {
    foreach my $getLen ( 0 .. $strMaxLen ) {
        $String =~ /.{\Q$startPos\E}(.{\Q$getLen\E})/;
        my $targetPhrase = $1;        
        next unless $targetPhrase;
        $temp{$1} = 1 if ( $String =~ /(\Q$targetPhrase\E){\Q$NeedRepe
+at\E}/ ) ;        
    }
}
@res = sort keys %temp;
print $_ . $/ foreach @res;

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In reply to Capture variable length pattern when it repeats variable times by exilepanda

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