I need to construct a hash for a file whose input looks like below.A sample output is shown. 1.How do I construct a hash for the below input? 2.I have written a code to achieve this but I having trouble with the regex constructed for the key and value below,not sure what is wrong? 3.Printing the hash shows an empty output,why?

INPUT:-

.\root\edit\perl\scripts\scripths\sec\inc\script_auth_pap.h-113115;perforcePLF.txt;//programfiles/documents/data/lookup/script_auth_pap.h - label_scriptHS_source.01.16.00 : 5

.\root\edit\perl\scripts\scripths\sec\inc\script_auth_peap.h-34348;perforcePLF.txt;//programfiles/documents/data/lookup/script_auth_peap.h - label : 5

.\root\edit\perl\scripts\scripths\sec\inc\script_auth_peap.h-113116;perforcePLF.txt;//depot/old/text/data/script_auth_peap.h - label_scriptHS_source.01.16.00 : 5

.\root\edit\perl\scripts\scripths\sec\inc\script_auth_ttls.h-34349;perforcePLF.txt;//source/new/text/files/data/script_auth_ttls.h - label : 5

OUTPUT:-

HASH should like below

//programfiles/documents/data/lookup/script_auth_pap.h=>root\edit\perl\scripts\scripths\sec\inc\script_auth_pap.h

//programfiles/documents/data/lookup/script_auth_peap.h=>root\edit\perl\scripts\scripths\sec\inc\script_auth_peap.h

//depot/old/text/data/script_auth_peap.h=>\root\edit\perl\scripts\scripths\sec\inc\script_auth_peap.h

//source/new/text/files/data/script_auth_ttls.h=>root\edit\perl\scripts\scripths\sec\inc\script_auth_ttls.h 

#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
my %hash;
 open my $fh, '<', $ARGV[0] or die "could not open $ARGV[0]'' $!";
     while (my $line = <$fh>)
{

 my $key= $line =~/;(.*)\s-\s/;   #match anything between ; and - is k
+ey
 my $value= $line =~/\.\\(.*)-\d+\;/; #match anything between .\ and -
+ is value

$hash{$key}=$value; 
}
print Dumper(\%hash);

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In reply to Constructing a hash - why isn't my regex matching anything by perl_mystery

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