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Re: Best way of testing Hexadecimal value [xslt 1.0]

Subject: Re: Best way of testing Hexadecimal value [xslt 1.0]
From: David Carlisle <davidc@xxxxxxxxx>
Date: Thu, 26 Aug 2010 12:30:44 +0100
Re:  Best way of testing Hexadecimal value [xslt 1.0]
On 26/08/2010 10:30, pankaj.c@xxxxxxxxxxxxxxxxxx wrote:
Hello all,

I just did the following test for one of the requirement in my stylesheet.
Though I am able to get the correct result but somehow I am not convinced
with the approach. There must be better/correct way of doing this.

source
=====
<label>#x2022</label><!--  HEXADECIMAL FOR BULLET  ACTUALLY WITH
'AMPERSAND' AND ; ADDED TO IT -->

Test
====
   <xsl:template match="label">
  <xsl:copy>
         <xsl:choose>
         <xsl:when test=".='.'"><!-- ='.' IS LITERAL BULLET SYMBOL  -->

If you don't want to use a bullet character you can use the numeric reference, just as your source has done and test


. = '& # x 2 0 2 2 ;'

It's not really clear if that is what you are asking?

         <!--  Do Something here  -->
         </xsl:when>
         <xsl:when test=".!='.'"><!-- ='.' IS LITERAL BULLET SYMBOL  -->

xsl:otherwise is of course more efficient than testing the negation which is repeating the test done in the previous clause.
         <!--  Do Something different here  -->
         </xsl:when>
     </xsl:choose>
<xsl:copy-of select="@*"/>
<xsl:apply-templates/>
</xsl:copy>
</xsl:template>

<xsl:when test=".= 'BULLET SIGN'">  doesn't seems to be nice to me. Is
there any better way to test hexadecimal values.
Apart from this is there a way of testing whether string is a digit or
character<label>1.</label>  <label>a.</label>.
you can test if number(.)=number(.) If the string represents a number, this is true, if it is a non number it is the test NaN = NaN which is false.

Not tested:


I believe<xsl:when test=".='BULLET SIGN'">  will check for the literal
string instead of something like [A-Za-z0-9]. I am using XSLT 1.0.

Any thoughts will be appreciated.

TIA,
Pankaj


david

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