rss_converter_instagram.com.xsl: ellipsize titles

diff --git a/rss_converter_instagram.com.xsl b/rss_converter_instagram.com.xsl
index 9ef06ef..0e1de8d 100644 (file)
--- a/rss_converter_instagram.com.xsl
+++ b/rss_converter_instagram.com.xsl
@@ -45,7 +45,18 @@
         <xsl:variable name="item-permalink" select="concat($BaseURL, '/p/', ./code, '/')"/>
         <item>
             <title>
-                <xsl:value-of select="$item-content-caption"/>
+                <xsl:variable name="title-length" select="140"/>
+                <!-- ellipsize, inspired from http://stackoverflow.com/questions/13622338 -->
+                <xsl:choose>
+                    <xsl:when test="string-length($item-content-caption) > $title-length">
+                        <xsl:variable name="truncated-length" select="$title-length - 3"/>
+                        <xsl:value-of select="normalize-space(substring($item-content-caption, 1, $truncated-length))"/>
+                        <xsl:text>...</xsl:text>
+                    </xsl:when>
+                    <xsl:otherwise>
+                        <xsl:value-of select="normalize-space($item-content-caption)"/>
+                    </xsl:otherwise>
+                </xsl:choose>
             </title>
             <link>
                 <xsl:value-of select="$item-permalink"/>