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dabiodabio
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new template for smart_breaking long words
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‎smart_break.xsl

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<?xml version="1.0" encoding="UTF-8"?>
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<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
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<!--
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smart_break
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Breaks long words at weakies (if possible) and inserts a space.
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Long word can break tables. This templates splits word either at default
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(or given weakies) after a given max-length. You can break words with CSS
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(see "word-wrap") when using pixel-units, ems will not work.
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<xsl:call-template name="smart_break">
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<xsl:with-param name="string" select="'Supercalifragilisticexpialidocious'"/>
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<xsl:with-param name="max_length" select="'20'"/>
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</xsl:call-template>
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Returns: Supercalifragilistic expialidocious
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-->
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<xsl:template name="smart_break">
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<xsl:param name="string"/>
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<xsl:param name="max_length" select="65"/>
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<xsl:param name="weakies" select="'/=_+%-.@'"/>
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<xsl:choose>
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<!--
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if a space is found, print the first part and call this template
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again with the rest of the string for further breaks.
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-->
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<xsl:when test="contains(substring($string, 1, $max_length), ' ')">
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<xsl:value-of select="substring-before($string, ' ')"/>
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<xsl:text> </xsl:text>
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<xsl:call-template name="smart_break">
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<xsl:with-param name="string" select="substring-after($string, ' ')"/>
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<xsl:with-param name="max_length" select="$max_length"/>
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<xsl:with-param name="weakies" select="$weakies"/>
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</xsl:call-template>
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</xsl:when>
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<!-- string length is too long, we have to break it anywhere. -->
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<xsl:when test="string-length($string) &gt; $max_length">
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<!-- find last weakie position in string -->
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<xsl:variable name="weakie_position">
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<xsl:call-template name="weakie_position">
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<xsl:with-param name="weakies" select="$weakies"/>
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<xsl:with-param name="string" select="substring($string, 1, $max_length)"/>
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</xsl:call-template>
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</xsl:variable>
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<!--
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actual break position, when no weakie is found, we break at
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max-length.
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-->
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<xsl:variable name="break_position">
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<xsl:choose>
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<xsl:when test="$weakie_position > 0">
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<xsl:value-of select="$weakie_position"/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:value-of select="$max_length"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:variable>
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<xsl:value-of select="substring($string, 1, $break_position)"/>
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<xsl:text> </xsl:text>
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<!-- call smart_break again with the rest of the string -->
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<xsl:call-template name="smart_break">
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<xsl:with-param name="string" select="substring($string, $break_position+1)"/>
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<xsl:with-param name="max_length" select="$max_length"/>
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<xsl:with-param name="weakies" select="$weakies"/>
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</xsl:call-template>
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</xsl:when>
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<!-- string is not long enough for smart breaking. just return it -->
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<xsl:otherwise>
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<xsl:value-of select="$string"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<xsl:template name="weakie_position">
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<xsl:param name="string"/>
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<xsl:param name="weakies"/>
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<xsl:param name="position" select="0"/>
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<xsl:variable name="weakie" select="substring($weakies, 1, 1)"/>
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<!--
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loop through all weakies and search for the last position of one single
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weakie.
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-->
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<xsl:choose>
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<!--
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when actual weakie is found in string, we recursively call this
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function again with the rest of the string and check to see if
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this weakie is found again.
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-->
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<xsl:when test="contains($string, $weakie)">
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<xsl:variable name="weakie_position" select="string-length(substring-before($string, $weakie))+1"/>
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<xsl:call-template name="weakie_position">
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<xsl:with-param name="string" select="substring($string, $weakie_position+1)"/>
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<xsl:with-param name="weakies" select="$weakies"/>
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<xsl:with-param name="position" select="$weakie_position"/>
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</xsl:call-template>
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</xsl:when>
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<!--
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when weakie is not found, we move one weakie forward, unless no
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weakies are left.
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-->
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<xsl:when test="not(contains($string, $weakie)) and string-length($weakies) > 1">
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<xsl:call-template name="weakie_position">
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<xsl:with-param name="string" select="$string"/>
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<xsl:with-param name="weakies" select="substring($weakies, 2)"/>
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<xsl:with-param name="position" select="$position"/>
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:value-of select="$position"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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</xsl:stylesheet>

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