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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Truncating output of a node
 I guess another possibility it to output n characters and add '...' at the end to create the summary. Is that any easier? Considerably easier, although what you stipulate about how the "." may be good enough , makes the harder problem easier too. It would be really easy if you didn't care about those embedded <span> elements. Then you could just do: <xsl:variable name="allowable-length" select="100"/> <!-- let's say 100 characters is a good number --> <xsl:template match="summary">
<xsl:value-of select="substring(., 1, $allowable-length)"/>
<xsl:if test="string-length(.) > $allowable-length">
<xsl:text>...</xsl:text>
</xsl:if>
</xsl:template>But with those embedded <span> elements, things are harder. I'm not going to tackle the "break on sentences" problem; we'll go with testing on string length. Maybe something like: <xsl:variable name="allowable-length" select="100"/> <xsl:template match="summary"> <xsl:apply-templates/> </xsl:template> <xsl:template name="string-segment"> <!-- outputs as much of the string as will fit --> <xsl:variable name="string-before"> <xsl:for-each select="$preceding-sibling::*|preceding-sibling::text()"> <!-- counting only elements and text nodes, not comments or processing-instructions --> <xsl:value-of select="."/> </xsl:for-each> </xsl:variable> <xsl:variable name="length-before" select="string-length($string-before)"/> <xsl:if test="$length-before < $allowable-length"> <!-- part of this string will fit! we're in business --> <xsl:variable name="length-left" select="$allowable-length - $length-before"/> <xsl:value-of select="substring(., 1, $length-left)"/> <xsl:if test="string-length(.) > $length-left"> <xsl:text>...</xsl:text> </xsl:if> </xsl:if> </xsl:template> <xsl:template match="summary/text()"> <xsl:call-template name="string-segment"/> </xsl:template> <xsl:template match="summary/span">
<b> <!-- I'm just making all spans <b>; do what you like -->
<xsl:call-template name="string-segment"/>
</b>
</xsl:template>If I'm thinking about this the right way, it'll work as long as you only have text nodes and span elements in your summary, and you don't have any elements you need to process *inside* the spans, just text nodes. Note -- untested: sure to be typos and maybe worse. Also -- expect performance to be pretty lame.... Hope this helps! Wendell ====================================================================== Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx Mulberry Technologies, Inc. http://www.mulberrytech.com 17 West Jefferson Street Direct Phone: 301/315-9635 Suite 207 Phone: 301/315-9631 Rockville, MD 20850 Fax: 301/315-8285 ---------------------------------------------------------------------- Mulberry Technologies: A Consultancy Specializing in SGML and XML ====================================================================== XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list 
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