in reply to Re: why i cant print reading hash table?
in thread why i cant print reading hash table?

Thank you Athanasius for pointing out problems in code. Made recommended modifications.

Declared variables 

$infile_CSV, $outfile_CSV, $outfile

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Using 'Asyn...Arc' removes Bareword error

Using for (; $count >= 0; $count--)

Placed $outfile outside Loop.

The print is modified with EOF These introduce some syntax errors. <<EOF prints strings available till EOF. In my code there are syntax problems.

Most of the errors are removed. There are errors related to $key_CSV. Please take a look. Earlier logic was to search 'AsyncInNoTimingArc' from %hash values. Keep a count of occurrence in $count. Using $count in LOOP print a bunch of line by adding every corresponding %hash table $key_CSV for every occurrence of 'AsyncInNoTimingArc'. Please provide your insight logically its possible, where we can search a hash value, keep a count and in every LOOP iteration of value[] key[] use print statement and use content of key[]

EXAMPLE: Output of %hash have its respective $key_CSV and values. Search a %hash value, keep a $count and for every values print respective $key_CSV in print statement

Contents of %hash{} 

$VAR1 = {
          'REFCLK_BUF3' => [
                             'AsyncOutNoTimingArc'
                           ],
          'C_WREN' => [
                        'C_CLK_and_SCANCLK_L__IN'
                      ],
          'CAL_CLK' => [
                         'AsyncInNoTimingArc'
                       ],
          'RX_IBIAS_2_25U[4:0]' => [
                                     'Power'
                                   ],

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open (my $outfile1, '>>', "$outfile") or die "Unable to open $outfile:
+ $!\n";

    for (; $count >= 0; $count--) 
    {
        print    <<"    EOF";
            pin($key_CSV) {
            direction       : input ;
            capacitance     : $DIN_CAP ;
            }
            
            internal_power(pwr_arc){
                values(\"$DIN_PWR_ARC\");
                related_input : \"$key_CSV\" ;
    }
    EOF

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Replies are listed 'Best First'.
Re^3: why i cant print reading hash table?
by VincentK (Beadle) on Nov 20, 2013 at 17:34 UTC

    Hi waytoperl. I think I understand what you are trying to achieve. If not, there should be enough code here for you to modify as needed.

    Input CSV 

    PinName1,Group1
PinName2,Group1
PinName3,AsyncInNoTimingArc
PinName4,Group1
PinName5,AsyncInNoTimingArc
PinName6,AsyncInNoTimingArc
PinName5,AsyncInNoTimingArc

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    Output RX CSV 

    $VAR1 = {
          'PinName1' => [
                          'Group1'
                        ],
          'PinName3' => [
                          'AsyncInNoTimingArc'
                        ],
          'PinName6' => [
                          'AsyncInNoTimingArc'
                        ],
          'PinName5' => [
                          'AsyncInNoTimingArc'
                        ],
          'PinName2' => [
                          'Group1'
                        ],
          'PinName4' => [
                          'Group1'
                        ]
        };

    [download]

    Output CSV 

    pin(PinName3) {
direction       : input ;
capacitance     : 0.0005 ;
}

internal_power(pwr_arc){
values("0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
+,0.000000");
related_input : "PinName3" ;

pin(PinName5) {
direction       : input ;
capacitance     : 0.0005 ;
}

internal_power(pwr_arc){
values("0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
+,0.000000");
related_input : "PinName5" ;

pin(PinName6) {
direction       : input ;
capacitance     : 0.0005 ;
}

internal_power(pwr_arc){
values("0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
+,0.000000");
related_input : "PinName6" ;


** Found 3 occurrences of 'AsyncInNoTimingArc' **

    [download]

    Script 

    #!/usr/bin/perl
use strict;
use warnings;
use diagnostics;
use Data::Dumper;

die "Error. Usage \'perl csv_parse.pl inputfile.csv outputfile_RX.csv 
+outputfile.csv\'\n $!" unless $#ARGV == 2;

my $infile_CSV     = shift @ARGV;
my $outfile_RX_CSV = shift @ARGV;
my $outfile_CSV    = shift @ARGV;

sub mainCSV ($$$);

# Assign Global Strings 
my $DIN_CAP = "0.0005";
my $DIN_PWR_ARC = "0.000000,0.000000,0.000000,0.000000,0.000000,0.0000
+00,0.000000,0.000000";

sub mainCSV ($$$)
{
    my $infile_CSV  = shift;
    my $outfile_RX_CSV = shift;    
    my $outfile_CSV = shift;

    my %hash  = (); 
    my $hash_ref = {};
    
    # Read the CSV input file
    open (my $infile_CSV1, '<', "$infile_CSV") or die "Unable to open 
+$infile_CSV: $!\n";
        while (<$infile_CSV1>) 
        {
            chomp;
            ## Skip blank line
            next if ($_ eq "");
            
            $_ =~ s/\s*\z//;
            my @array_CSV = split(/,/,$_);
            my $key_CSV = shift @array_CSV;

            if (exists $hash{$key_CSV})
            {
                warn "Duplicate key: $key_CSV\n";
            }
            else
            {
                $hash{$key_CSV} = \@array_CSV;
            }
        }
    close($infile_CSV1);

    # Explicit scalar context 
    my $size = scalar keys %hash; 
    
    # Prints Number of Pins (Hash size...)
    print "Number of Pins: $size\n"; 

    # Open output CSV in Write Mode. The output file and save hash in 
+$outfile_RX_CSV
    open (my $outfile1, '>', "$outfile_RX_CSV") or die "Unable to open
+ $outfile_CSV: $!\n";
        print $outfile1 Dumper(\%hash); 
    close($outfile1);
    
    # Open output CSV File in Append Mode
    open (my $outfile2, '>>', "$outfile_CSV") or die "Unable to open $
+outfile_CSV: $!\n";
        print "Stored $size list of pins in $outfile_CSV file.\n";    
+    

        # Print key,value where the hash value is AsyncInNoTimingArc 

        my $count_occurrences = 0;
        foreach my $key (sort keys %hash)
        {
            ## Does current hash key value equal AsyncInNoTimingArc
            if ( @{$hash{$key}}[0] eq "AsyncInNoTimingArc" )
            {
                $count_occurrences++;
                print $outfile2 "\n",
                      "pin($key) {\n",
                      "direction       : input ;\n",
                      "capacitance     : $DIN_CAP ;\n",
                      "}\n",
                      "\n",
                      "internal_power(pwr_arc){\n",
                      "values(\"$DIN_PWR_ARC\");\n",
                      "related_input : \"$key\" ;\n";
            }
        }
        
        print "\n** Found $count_occurrences occurrences of 'AsyncInNo
+TimingArc' **\n";
        print $outfile2 "\n\n** Found $count_occurrences occurrences o
+f 'AsyncInNoTimingArc' **\n";
        
    close($outfile2);
}

mainCSV ($infile_CSV,$outfile_RX_CSV,$outfile_CSV);

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