From 6918059cd5f97720943170f18f6c10361e20b835 Mon Sep 17 00:00:00 2001
From: Stefan Suhren <suhren.stefan@fh-swf.de>
Date: Wed, 2 Dec 2015 19:37:37 +0100
Subject: Build reverse search index

---
 Aufgabe5/skript4.pl | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Aufgabe5/skript4.pl

(limited to 'Aufgabe5/skript4.pl')

diff --git a/Aufgabe5/skript4.pl b/Aufgabe5/skript4.pl
new file mode 100644
index 0000000..0615790
--- /dev/null
+++ b/Aufgabe5/skript4.pl
@@ -0,0 +1,73 @@
+#!/usr/bin/env perl 
+#===============================================================================
+#
+#         FILE: skript3.pl
+#
+#        USAGE: ./skript3.pl  
+#
+#  DESCRIPTION: 
+#
+#      OPTIONS: ---
+# REQUIREMENTS: ---
+#         BUGS: ---
+#        NOTES: ---
+#       AUTHOR: Stefan Suhren (su), suhren.stefan@fh-swf.de
+# ORGANIZATION: FH Südwestfalen, Iserlohn
+#      VERSION: 1.0
+#      CREATED: 02.12.2015 14:14:02
+#     REVISION: ---
+#===============================================================================
+
+use strict;
+use warnings;
+use utf8;
+
+# Add own module
+use searchengine;
+
+# For dumping data
+use Data::Dumper;
+
+# enforce utf-8 mode
+binmode (STDIN, ":encoding(UTF-8)");
+binmode (STDOUT, ":encoding(UTF-8)");
+binmode (STDERR, ":encoding(UTF-8)");
+use open ":encoding(UTF-8)";
+
+my $stoplistFile = "stoplist.txt";
+my %stoplist;
+
+buildStoplist($stoplistFile, \%stoplist);
+
+my %documentName;
+
+for (my $i = 1; $i <= 4; $i++)
+{
+	$documentName{$i} = 'doc.einfach/doc'.$i.'.txt';
+}
+
+my %reverseIndex;
+
+foreach my $key (keys %documentName)
+{
+	my $wordFileName = $documentName{$key};
+
+	open  my $wordFile, '<', $wordFileName
+		or die "$0 : failed to open  input file '$wordFileName' : $!\n";
+
+	# Read in slurp mode
+	my $fileContent = do{
+		local $/ = undef;
+		<$wordFile>;
+	};
+
+	close  $wordFile
+		or warn "$0 : failed to close input file '$wordFileName' : $!\n";
+
+	foreach my $word (getWords($fileContent, \%stoplist))
+	{
+		${$reverseIndex{$word}}->{$key} = '';
+	}
+}
+
+print Dumper(%reverseIndex);
-- 
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