88e71554fdfb77f13426fcbd17696183bfb609f2
[tweeper.git] / src / rss_converter_dilbert.com.xsl
1 <!--
2   Stylesheet to convert Dilbert daily strips to RSS.
3
4   Copyright (C) 2013-2018  Antonio Ospite <ao2@ao2.it>
5
6   This file is part of tweeper.
7
8   This program is free software: you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation, either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program.  If not, see <http://www.gnu.org/licenses/>.
20 -->
21
22 <!--
23   Since June 18, 2013 dilbert.com strips are not accessible anymore
24   directly from the RSS feed, this message is displayed instead:
25
26     Dilbert readers - Please visit Dilbert.com to read this feature. Due
27     to changes with our feeds, we are now making this RSS feed a link to
28     Dilbert.com.
29
30   How unhandy is that, was it because of a management decision?
31   Maybe a parody dilbert strip is needed about this issue...
32 -->
33
34 <xsl:stylesheet version="1.0"
35     xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
36     xmlns:php="http://php.net/xsl"
37     exclude-result-prefixes="php">
38
39     <xsl:output method="xml" indent="yes"/>
40
41     <xsl:variable name="BaseURL" select="//meta[@property='og:url']/@content"/>
42
43     <xsl:template match="//section[@class='comic-item']">
44         <xsl:variable name="item-permalink" select=".//a[@class='img-comic-link']/@href"/>
45         <xsl:variable name="picture-url" select=".//img[@class='img-responsive img-comic']/@src"/>
46         <xsl:variable name="picture-title" select=".//img[@class='img-responsive img-comic']/@alt"/>
47         <item>
48             <title>
49                 <xsl:variable name="title-length" select="140"/>
50                 <!-- ellipsize, inspired from http://stackoverflow.com/questions/13622338 -->
51                 <xsl:choose>
52                     <xsl:when test="string-length($picture-title) > $title-length">
53                         <xsl:variable name="truncated-length" select="$title-length - 3"/>
54                         <xsl:value-of select="substring($picture-title, 1, $truncated-length)"/>
55                         <xsl:text>...</xsl:text>
56                     </xsl:when>
57                     <xsl:otherwise>
58                         <xsl:value-of select="$picture-title"/>
59                     </xsl:otherwise>
60                 </xsl:choose>
61             </title>
62             <link>
63                 <xsl:value-of select="$item-permalink"/>
64             </link>
65             <guid>
66                 <xsl:value-of select="$item-permalink"/>
67             </guid>
68             <pubDate>
69                 <xsl:value-of select="php:functionString('Tweeper\Tweeper::strToRssDate', normalize-space(.//date))"/>
70             </pubDate>
71             <description>
72                 <xsl:text disable-output-escaping="yes">&lt;![CDATA[</xsl:text>
73                 <img src="{$picture-url}" alt="{$picture-title}"/>
74                 <xsl:text disable-output-escaping="yes">]]&gt;</xsl:text>
75             </description>
76             <xsl:if test="$generate-enclosure = 1">
77                 <xsl:copy-of select="php:functionString('Tweeper\Tweeper::generateEnclosure', $picture-url)"/>
78             </xsl:if>
79         </item>
80     </xsl:template>
81
82     <xsl:template match="/">
83         <xsl:variable name="channel-title" select="//meta[@property='og:title']/@content"/>
84         <xsl:variable name="channel-link" select="$BaseURL"/>
85
86         <rss version="2.0">
87             <xsl:attribute name="xml:base"><xsl:value-of select="$BaseURL" /></xsl:attribute>
88             <channel>
89                 <generator>Tweeper</generator>
90                 <title>
91                     <xsl:value-of select="$channel-title"/>
92                 </title>
93                 <link>
94                     <xsl:value-of select="$channel-link"/>
95                 </link>
96                 <description>
97                     <xsl:value-of select="//meta[@property='og:description']/@content"/>
98                 </description>
99                 <image>
100                     <title>
101                         <xsl:value-of select="$channel-title"/>
102                     </title>
103                     <link>
104                         <xsl:value-of select="$channel-link"/>
105                     </link>
106                     <url>
107                         <xsl:value-of select="concat($BaseURL, //img[@alt='Dilbert logo']/@src)"/>
108                     </url>
109                 </image>
110                 <xsl:apply-templates select="//section[@class='comic-item']"/>
111             </channel>
112         </rss>
113     </xsl:template>
114 </xsl:stylesheet>