/[local]/search/filters/jfif.pl
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Contents of /search/filters/jfif.pl

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Revision 1.1.1.1 - (show annotations) (vendor branch)
Tue Mar 7 19:45:18 2000 UTC (19 years, 4 months ago) by dpavlin
Branch: DbP, MAIN
CVS Tags: r0, HEAD
Changes since 1.1: +0 -0 lines
File MIME type: text/plain
initial import

1 #!/usr/bin/perl
2
3 #*****************************************************************************
4 # Copyright (C) 1993-2000, FS Consulting Inc. All rights reserved *
5 # *
6 # *
7 # This notice is intended as a precaution against inadvertent publication *
8 # and does not constitute an admission or acknowledgement that publication *
9 # has occurred or constitute a waiver of confidentiality. *
10 # *
11 # This software is the proprietary and confidential property *
12 # of FS Consulting, Inc. *
13 #*****************************************************************************
14
15 #--------------------------------------------------------------------------
16 #
17 # Author: Francois Schiettecatte (FS Consulting, Inc.)
18 # Creation Date: 3/17/1999
19
20
21 #--------------------------------------------------------------------------
22 #
23 # Description:
24 #
25 # This package implements the various filters for this database
26 #
27
28 #--------------------------------------------------------------------------
29 #
30 # Pragmatic modules
31 #
32
33 use strict;
34
35
36 #--------------------------------------------------------------------------
37 #
38 # Package definition
39 #
40
41 package jfif;
42
43
44 #--------------------------------------------------------------------------
45 #
46 # Application Constants
47 #
48
49 # Field Names
50 %jfif::FieldNames = (
51 'Title', 'Title',
52 'Text', 'Text',
53 );
54
55 # Field Display Order
56 @jfif::FieldDisplayOrder = (
57 'Title',
58 'Text'
59 );
60
61
62
63 #--------------------------------------------------------------------------
64 #
65 # Function: DocumentParser()
66 #
67 # Purpose: This function serves as a document parser
68 #
69 # Called by: DocumentFilter(), SummaryFilter()
70 #
71 # Parameters: $Database Database name
72 # $DocumentID Document ID
73 # $ItemName Item name
74 # $MimeType Mime type
75 # $DocumentRaw Raw document text
76 #
77 # Global Variables:
78 #
79 # Returns: A hash table of the document fields
80 #
81 sub DocumentParser {
82
83 my ($Database, $DocumentID, $ItemName, $MimeType, $DocumentRaw) = @_;
84
85 my (%Document, @DocumentLines, $DocumentLine);
86
87 @DocumentLines = split(/\n/, $DocumentRaw);
88
89 # Extract the document
90 foreach $DocumentLine ( @DocumentLines ) {
91
92 if ( !defined($Document{'Title'}) ) {
93 $Document{'Title'} = $DocumentLine;
94 }
95 else {
96 if ( defined($Document{'Text'}) ) {
97 $Document{'Text'} .= "\n" . $DocumentLine;
98 }
99 else {
100 $Document{'Text'} = $DocumentLine;
101 }
102 }
103 }
104
105 return (%Document);
106
107 }
108
109
110
111
112 #--------------------------------------------------------------------------
113 #
114 # Function: DocumentFilter()
115 #
116 # Purpose: This function is the document filter
117 #
118 # Called by: external
119 #
120 # Parameters: $Database Database name
121 # $DocumentID Document ID
122 # $ItemName Item name
123 # $MimeType Mime type
124 # $DocumentRaw Raw document text
125 #
126 # Global Variables: %jfif::FieldNames, @jfif::FieldDisplayOrder
127 #
128 # Returns: The filtered document
129 #
130 sub DocumentFilter {
131
132 my ($Database, $DocumentID, $ItemName, $MimeType, $DocumentRaw) = @_;
133
134 my (%Document, $DocumentFinal, $FieldTag);
135
136
137 if ( !defined($DocumentRaw) ) {
138 return (undef);
139 }
140
141
142 %Document = &DocumentParser($Database, $DocumentID, $ItemName, $MimeType, $DocumentRaw);
143
144
145 # Outer table
146 $DocumentFinal = "<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100%> \n";
147 $DocumentFinal .= "<TR><TD VALIGN=TOP ALIGN=LEFT>\n";
148
149 # Inner table
150 $DocumentFinal .= "<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=2 WIDTH=100%> \n";
151
152 # Loop over each line in the document list
153 foreach $FieldTag ( @jfif::FieldDisplayOrder ) {
154
155 # Skip empty slots
156 if ( !(defined($Document{$FieldTag}) && ($Document{$FieldTag} ne "")) ) {
157 next;
158 }
159
160 # Print the data
161 $DocumentFinal .= "<TR><TD VALIGN=TOP ALIGN=RIGHT BGCOLOR=\"#EEEEEE\" WIDTH=1%> $jfif::FieldNames{$FieldTag}: </TD><TD VALIGN=TOP ALIGN=LEFT> $Document{$FieldTag} </TD></TR>\n";
162 }
163
164
165 # Image links
166 $DocumentFinal .= "<TR><TD VALIGN=TOP ALIGN=RIGHT BGCOLOR=\"#EEEEEE\" WIDTH=1%> Images: </TD><TD VALIGN=TOP ALIGN=LEFT>";
167 $DocumentFinal .= "<A HREF=\"$ENV{'SCRIPT_NAME'}/GetDocument?Database=$Database&DocumentID=$DocumentID&ItemName=image&MimeType=image/jpeg\"> JPEG Image </A><BR>\n";
168 $DocumentFinal .= "<A HREF=\"$ENV{'SCRIPT_NAME'}/GetDocument?Database=$Database&DocumentID=$DocumentID&ItemName=image&MimeType=image/gif\"> GIF Image </A><BR>\n";
169 $DocumentFinal .= "</TD></TR>\n";
170
171 # End of inner table
172 $DocumentFinal .= "</TABLE> \n";
173
174 # Thumbnail
175 $DocumentFinal .= "</TD><TD VALIGN=TOP ALIGN=LEFT> Thumbnail: <A HREF=\"$ENV{'SCRIPT_NAME'}/GetDocument?Database=$Database&DocumentID=$DocumentID&ItemName=image&MimeType=image/jpeg\"><BR>";
176 $DocumentFinal .= "<IMG SRC=\"$ENV{'SCRIPT_NAME'}/GetDocument?Database=$Database&DocumentID=$DocumentID&ItemName=thumbnail&MimeType=image/jpeg\"></A> </TD></TR>\n";
177
178 # End of outer table
179 $DocumentFinal .= "</TABLE> \n";
180
181 return ($DocumentFinal);
182
183 }
184
185
186
187 #--------------------------------------------------------------------------
188 #
189 # Function: SummaryFilter()
190 #
191 # Purpose: This function is the summary filter
192 #
193 # Called by: external
194 #
195 # Parameters: $Database Database name
196 # $DocumentID Document ID
197 # $ItemName Item name
198 # $MimeType Mime type
199 # $DocumentRaw Raw document text
200 #
201 # Global Variables: none
202 #
203 # Returns: The filtered summary
204 #
205 sub SummaryFilter {
206
207 my ($Database, $DocumentID, $ItemName, $MimeType, $DocumentRaw) = @_;
208
209 my (%Document, $Summary);
210
211
212 if ( !defined($DocumentRaw) ) {
213 return (undef);
214 }
215
216
217 # Parse the document
218 %Document = &DocumentParser($Database, $DocumentID, $ItemName, $MimeType, $DocumentRaw);
219
220
221 # Select the summary text
222 $Summary = $Document{'Text'};
223
224 # Clean the summary text
225 if ( defined($Summary) ) {
226 # First clean up the text
227 if ( index($Summary, "\r\n") >= 0 ) {
228 $Summary =~ s/\r//gs;
229 }
230 elsif ( index($Summary, "\r") >= 0 ) {
231 $Summary =~ s/\r/\n/gs;
232 }
233 $Summary =~ s/\n/ /gs;
234 $Summary =~ s/\s+/ /gs;
235 $Summary = ucfirst($Summary);
236 }
237
238 return ($Summary);
239
240 }
241
242
243
244 #--------------------------------------------------------------------------
245 #
246 # Function: RelevanceFeedbackFilter()
247 #
248 # Purpose: This function is the relevance filter
249 #
250 # Called by: external
251 #
252 # Parameters: $Database Database name
253 # $DocumentID Document ID
254 # $ItemName Item name
255 # $MimeType Mime type
256 # $DocumentRaw Raw document text
257 #
258 # Global Variables: none
259 #
260 # Returns: The filtered relevance feedback
261 #
262 sub RelevanceFeedbackFilter {
263
264 my ($Database, $DocumentID, $ItemName, $MimeType, $DocumentRaw) = @_;
265
266 return (&SummaryFilter($DocumentRaw));
267
268 }
269
270
271
272 #--------------------------------------------------------------------------
273
274 1;

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