XSL - take first 100(ish) characters of a string, but split at the end of a word

Hi,

I have a string value, that is sometimes too long to display to the web page.

After about 100 charcters, I want to stop displaying it, but I dont want to stop displaying during a word - it must finish at the end of a complete word.

A space will define the end of a word.

An help will be much appreciated!
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lunchboxbillAsked:
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Geert BormansInformation ArchitectCommented:
Are you using XSLT2 or XSLT1?
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lunchboxbillAuthor Commented:
sorry, unfortunately, XSLT1
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Geert BormansInformation ArchitectCommented:
OK, you will need some recursion then

consider the long string in an element test

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

    <xsl:template match="test">
        <xsl:variable name="firstOneHundred" select="substring(normalize-space(.), 1, 100)"/>
        <xsl:text>&#10;</xsl:text>
        <xsl:choose>
            <xsl:when test="substring(normalize-space(.), 100, 1) = ' '">
                <xsl:value-of select="$firstOneHundred"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:call-template name="upToLastSpace">
                    <xsl:with-param name="str" select="$firstOneHundred"/>
                </xsl:call-template>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>
   
    <xsl:template name="upToLastSpace">
        <xsl:param name="str"/>
        <xsl:value-of select="substring-before($str, ' ')"/>
            <xsl:if test="contains(substring-after($str, ' '), ' ')">
                <xsl:text> </xsl:text>
                <xsl:call-template name="upToLastSpace">
                    <xsl:with-param name="str" select="substring-after($str, ' ')"/>
                </xsl:call-template>
            </xsl:if>
    </xsl:template>

</xsl:stylesheet>
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Geert BormansInformation ArchitectCommented:
I first store the 100 first characters of the text in a variable, with normalize-space to make sure that every white-space seperator is a single space
If character 101 is a space? I use the variable (borderline condition of exactly 100 chars)
If not, I pass the string to a recursive template
I am not sure what happens when character 100 is a space, you might have to test that and add a condition if necessary

cheers


Geert
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Geert BormansInformation ArchitectCommented:
By the way, this doesn' work if the first word is over 100 chars, but that is something you can easily test
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lunchboxbillAuthor Commented:
Thank you!
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Geert BormansInformation ArchitectCommented:
welcome
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