Re: parsing a long string into chunks

This is done easily with FXSL:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 xmlns:vendor="urn:schemas-microsoft-com:xslt"
 exclude-result-prefixes="vendor"
>

   <xsl:import href="strSplit-to-Words.xsl"/>

   <xsl:output indent="yes" omit-xml-declaration="yes"/>

    <xsl:template match="/">
      <xsl:variable name="vrtfPoints">
        <xsl:call-template name="str-split-to-words">
          <xsl:with-param name="pStr" select="/*/*"/>
          <xsl:with-param name="pDelimiters"
                          select="' &#10;&#13;'"/>
        </xsl:call-template>
      </xsl:variable>

      <polyline>
        <xsl:apply-templates
             select="vendor:node-set($vrtfPoints)/*"/>
      </polyline>
    </xsl:template>

    <xsl:template match="word">
      <xsl:if test="string(.)">
        <point x="{substring-before(., ',')}" y="{substring-after(.,
',')}"/>
      </xsl:if>
    </xsl:template>
</xsl:stylesheet>

When applied to your source.xml:

<poly>
  <coordinates>10,10 10,20 20,20</coordinates>
</poly>

the wanted result is produced:

<polyline>
  <point x="10" y="10" />
  <point x="10" y="20" />
  <point x="20" y="20" />
</polyline>


Hope this helped.


=====
Cheers,

Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL


"Tim Wilkins" <Tim.Wilkins@xxxxxxxxxxxxxxxx> wrote in message
news:000301c2ff7e$bb720850$1600040a@xxxxxxxxxxxxxxxxxxx
> I have input data of the form
> <coordinates>x1,y1 x2,y2 x3,y3</coordinates>
> e.g.
> <coordinates>10,10 10,20 20,20</coordinates>
> There can be any number of space-delimited substrings.  At present this is
> parsed using substring-before and substring-after with a recursive
template,
> to generate a sequence of elements <Point X="10" Y="10"/> etc.
> Unfortunately this can sometimes be slow for long lists (by which I mean
> 5000 or so x,y pairs).  In addition I have to divide up the resultant list
> of elements into chunks (to avoid exceeding a limit on the number of
points
> in a line), although this can easily be done on a second pass (it's then a
> similar problem to splitting up for a table with a given number of
columns).
>
> i.e. I want
>
> <coordinates>x1,x2 ...
>
> to become someething like (ignoring attributes for simplicity!)
>
> <Polyline>
> <Point><Point><Point><Point>
> </Polyline>
> <Polyline>
> <Point><Point><Point><Point>
> </Polyline>
>
> Can anyone think of a better way, especially a way of splitting up without
> the need for a second pass?  What I'd really like is a trivial way to make
> xsl treat the string as a node list split at whitespace, but I suspect
that
> that isn't possible!
>
> Tim
>
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
>




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