use strict;
use warnings;

open (IN1, "<design_modify1.vhd") or die;    ##### Suggestion: use 3 a
+rgument form and lexical
open (IN2, "<nets.txt") or die;              #####     file handles ou
+t of habit.  It can make
open (OUT, ">output_file.vhd") or die;       #####     some types of c
+ode safer.
open (IN3, "<enabled_nets.txt") or die;      ##### open(my $fh, "<", $
+filename) or die "cannot open $filename: $!"

my @nets = <IN2>;
chomp @nets;
my @enabled_nets = <IN3>;
chomp @enabled_nets;
my $lines = "";                              ##### Defined here (I wil
+l call it (1))

while (<IN1>) {                              ##### cuddle your braces 
+or not.  Be consistent.
    #print OUT;

                                             ##### (1) should be defin
+ed here instead, for
                                             ##### the smallest scope.

    foreach my $i (0..$#nets) {
        if (s/\=\>\s+$nets[$i]\,/\=\>$enabled_nets[$i]\,/) {
            my $lines = $_;                  ##### and here (I will ca
+ll it (2))
                                             ##### Make it '$lines = $
+_' (no 'my')
                                             ##### and you will probab
+ly see your
                                             ##### expected results.
            print "done";
            print $lines;                    ##### prints the value of
+ (2)
        }
    }
    print OUT "$lines";                      ##### prints the value of
+ (1)
}

close (IN1);
close (IN2);
close (IN3);
close (OUT);

[download]

There are many other coding practice and preference annotations that I could make as well. If you wish to hear them, just ask.

--MidLifeXis

In reply to Re: How to extent the scope of local variable outside block?? by MidLifeXis
in thread How to extent the scope of local variable outside block?? by sumathigokul

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