hi Hauke

sorry on the mismatch. it was a typo on the input source. can you show me please the full code in using the while(<>){...} ? i only pasted a part of the code that lists down operation between the PIN vcc until END vcc.

input source 
   PIN vcc
    aaaa
    bbbb
    Port
      LAYER m2 ;
    END
    CCC
    DDD
    Port 
      LAYER m1 ;
    END
    EEE
    FFF
    Port
      LAYER m0 ;
    END
   END vcc

[download]
my code : 

if (/PIN vcc/../END vcc/) {
           if(/LAYER\s+m(\S+)/) {
             push(@num, $1);
             print "@num" ;
             

             
           
}

[download]

In reply to Re^2: how to capture the max value of the array by teddy6507
in thread how to capture the max value of the array by teddy6507

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