A quick module to load up text files more easily

git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@2988 348d0f76-0448-11de-a6fe-93d51630548a

perl/DataTable.pm

@@ -0,0 +1,64 @@
+package DataTable;
+
+use strict;
+use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
+require Exporter;
+ 
+@ISA = qw(Exporter AutoLoader);
+
+@EXPORT = qw( readTable );
+
+use Data::Dumper;
+
+sub readTable {
+    my ($file, %overrides) = @_;
+    my %options = (
+        'file' => $file,
+        'key' => undef,
+        'header' => 0,
+        'delimiter' => '\s+',
+        'filter' => '#',
+        %overrides,
+    );
+
+    open(FILE, $options{'file'});
+
+    my @header = undef;
+    if ($options{'header'} == 1) {
+        chomp(my $headerline = <FILE>);
+        $headerline =~ s/#//g;
+        @header = split(/$options{'delimiter'}/, $headerline);
+    } elsif (ref($options{'header'}) eq 'ARRAY') {
+        @header = @{$options{'header'}};
+    }
+
+    chomp(my @lines = grep { $_ !~ /$options{'filter'}/ } <FILE>);
+
+    my @table;
+    my %table;
+    for (my $lineIndex = 0; $lineIndex <= $#lines; $lineIndex++) {
+        my $line = $lines[$lineIndex];
+
+        my %fieldHash;
+        my @fields = split(/$options{'delimiter'}/, $line);
+
+        for (my $fieldIndex = 0; $fieldIndex <= $#fields; $fieldIndex++) {
+            $fieldHash{$header[$fieldIndex]} = $fields[$fieldIndex];
+        }
+
+        $fieldHash{'_linenum'} = $lineIndex;
+        $fieldHash{'_line'} = $line;
+
+        if (!defined($options{'key'})) {
+            push(@table, \%fieldHash);
+        } else {
+            my $key = ($options{'key'} =~ /^\d+/) ? $fields[$options{'key'}] : $fieldHash{$options{'key'}};
+
+            push(@{$table{$key}}, \%fieldHash);
+        }
+    }
+
+    return (!defined($options{'key'})) ? @table : %table;
+}
+
+1;