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How not to repeat the repeating logic in my xslt code?

What is the best way to write this code:

 <xsl:template name="CamelChain">
      <xsl:param name="input"/>
      <xsl:param name="position"/>
      <xsl:if test="$position &lt;= string-length($input)">
         <xsl:choose>
         <xsl:when test="substring($input, $position, 1) = '_'">
            <xsl:value-of select="translate(substring($input, $position + 1, 1), 'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')"/>

            <xsl:call-template name="CamelChain">
               <xsl:with-param name="input" select="$input"/>
               <xsl:with-param name="position" select="$position + 2"/>
            </xsl:call-template>
         </xsl:when>

         <xsl:otherwise>

            <xsl:value-of select="substring($input, $position, 1)"/>

            <xsl:call-template name="CamelChain">
               <xsl:with-param name="input" select="$input"/>
               <xsl:with-param name="position" select="$position + 1"/>
            </xsl:call-template>
         </xsl:otherwise>
         </xsl:choose>
      </xsl:if>
   </xsl:template>

Great, but I think it can be cleaner. Say right now, I repeat this logic:

<xsl:call-template name="CamelChain">
               <xsl:with-param name="input" select="$input"/>
               <xsl:with-param name="position" select="$new_position"/>
            </xsl:call-template>

So does anyone have any solution?

I really tried it myself @ xslt, is this ok if we do `select =" $ position + $ jump "`? but this method (or hack, as I call it) does not work .. so I'm currently not in my decisions and wondered if anyone could help.

I basically thought along the lines of:

<xsl:template name="CamelChain">
      <xsl:param name="input"/>
      <xsl:param name="position"/>
      <xsl:variable name="jump"/>
      <xsl:if test="$position &lt;= string-length($input)">
         <xsl:choose>
            <xsl:when test="substring($input, $position, 1) = '_'">
               <xsl:value-of select="translate(substring($input, $position + 1, 1), 'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')"/>
               <!-- set jump to 2 -->
            </xsl:when>
            <xsl:otherwise>
               <xsl:value-of select="substring($input, $position, 1)"/>
               <!-- set jump to 1 -->
            </xsl:otherwise>
         </xsl:choose>
         <xsl:call-template name="CamelChain">
            <xsl:with-param name="input" select="$input"/>
            <xsl:with-param name="position" select="$position + $jump"/>
         </xsl:call-template>
      </xsl:if>
   </xsl:template>

or maybe something completely different or exotic. (XSLT 1.0 without extensions here)

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2 answers

-, XSLT 1.0 (, ..depends:).

, , , , .

, . ?

, , , :

  • .
  • ( , )
  • _ , (, ?)
<xsl:template name="CamelCase">

    <xsl:param name="input" select="'this_string_will_be_camel_case'"/>

    <xsl:variable name="camel">
        <xsl:variable name="sub" select="substring-before($input,'_')"/> 
        <xsl:choose>
            <xsl:when test="not(string-length($sub)=0)">
                <xsl:value-of select="$sub"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="$input"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="case">
        <xsl:value-of select="translate(
            substring($camel,1,1),
            'abcdefghijklmnopqrstuvwxyz',
            'ABCDEFGHIJKLMNOPQRSTUVWXYZ')"/>
    </xsl:variable>

    <xsl:value-of select="concat($case,substring($camel,2))"/>

    <xsl:if test="not(string-length($camel)=0)">
        <xsl:call-template name="CamelCase">
            <xsl:with-param name="input" select="substring-after($input,'_')"/>
        </xsl:call-template>
    </xsl:if>

</xsl:template>

, :

 <xsl:call-template name="CamelCase"/>

:

 ThisStringWillBeCamelCase
+1

XSLT 2.0:

<xsl:analyze-string select="$in" regex="_.">
  <xsl:matching-substring>
    <xsl:value-of select="uppercase(substring(., 2, 1))"/>
  </xsl:matching-substring>
  <xsl:non-matching-substring>
     <xsl:value-of select="value-of select="."/>
  </xsl:non-matching-substring>
</xsl:analyze-string>

, , XSLT 1.0 .

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