Re: [xsl] duplicate occurances within strings

[Christopher Hansen <chansen1@xxxxxxxxx>]

Jay, 
Wow.  Lots of code there.  Thank you though...just wish there were an
easier way to accomplish the task!

Thanks
Chris


On Thu, 16 Dec 2004 15:51:25 -0600, JBryant@xxxxxxxxx <JBryant@xxxxxxxxx> wrote:
> We had a very similar question last week, except that that person was
> getting the string from a node in the document and didn't care about a
> string-compare function. Assuming you also don't care about a
> string-compare function, here's a modification of last week's answer that
> does the job with a recursive template. If you really do want to use a
> string-compare function, someone else will have to answer your question,
> as I don't use MSXSL.
> 
> Note that my solution is case-sensitive, so Hello, hello, cat and Cat are
> all different words.
> 
> Jay Bryant
> Bryant Communication Services
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet
>   version="1.0"
>   xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> >
> <xsl:output
>   method="text"
>   omit-xml-declaration="yes"
>   indent="no"
> />
> 
>   <xsl:template match="/">
>     <xsl:variable name="theString" select="Hello, Hello, Hello, test, dog,
> cat, cat"/>
>     <xsl:call-template name="makeList">
>       <xsl:with-param name="textIn" select="translate($theString, ',',
> '')"/>
>       <xsl:with-param name="wordsSoFar"/>
>     </xsl:call-template>
>   </xsl:template>
> 
>   <xsl:template name="makeList">
>     <xsl:param name="textIn"/>
>     <xsl:param name="wordsSoFar"/>
>     <xsl:choose>
>       <xsl:when test="contains($textIn, ' ')">
>         <xsl:variable name="firstWord" select="substring-before($textIn, '
> ')"/>
>         <xsl:choose>
>           <xsl:when test="not(contains($wordsSoFar, $firstWord))">
>             <xsl:variable name="newString">
>               <xsl:choose>
>                 <xsl:when test="string-length($wordsSoFar)=0">
>                   <xsl:value-of select="$firstWord"/>
>                 </xsl:when>
>                 <xsl:otherwise>
>                   <xsl:value-of select="$wordsSoFar"/><xsl:text>,
> </xsl:text><xsl:value-of select="$firstWord"/>
>                 </xsl:otherwise>
>               </xsl:choose>
>             </xsl:variable>
>             <xsl:call-template name="makeList">
>               <xsl:with-param name="textIn"
> select="substring-after($textIn, ' ')"/>
>               <xsl:with-param name="wordsSoFar" select="$newString"/>
>             </xsl:call-template>
>           </xsl:when>
>           <xsl:otherwise>
>             <xsl:call-template name="makeList">
>               <xsl:with-param name="textIn"
> select="substring-after($textIn, ' ')"/>
>               <xsl:with-param name="wordsSoFar" select="$wordsSoFar"/>
>             </xsl:call-template>
>           </xsl:otherwise>
>         </xsl:choose>
>       </xsl:when>
>       <xsl:otherwise>
>         <xsl:choose>
>           <xsl:when test="string-length($wordsSoFar)=0">
>             <xsl:value-of select="$textIn"/>
>           </xsl:when>
>           <xsl:otherwise>
>             <xsl:choose>
>               <xsl:when test="contains($wordsSoFar, $textIn)">
>                 <xsl:value-of select="$wordsSoFar"/>
>               </xsl:when>
>               <xsl:otherwise>
>                 <xsl:value-of select="$wordsSoFar"/><xsl:text>,
> </xsl:text><xsl:value-of select="$textIn"/>
>               </xsl:otherwise>
>             </xsl:choose>
>           </xsl:otherwise>
>         </xsl:choose>
>       </xsl:otherwise>
>     </xsl:choose>
>   </xsl:template>
> 
> </xsl:stylesheet>
> 
> Christopher Hansen <chansen1@xxxxxxxxx>
> 12/16/2004 02:59 PM
> Please respond to
> xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> 
> To
> xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> cc
> 
> Subject
> [xsl] duplicate occurances within strings
> 
> 
> If i have a variable $thestring   containing the following string:
> "Hello, Hello, Hello, test, dog, cat, cat"
> 
> Is there a way to use the string-compare function to parse it and
> check for duplicates within the string, and then possibly remove those
> extra occurrances...resulting in the string "Hello, test, dog, cat"
> 
> Thanks
> Chris