If not null - need help with rule.....

[Madhav Lakkapragada]

I have two variables declared var1 and var2.
I am trying to use a choice element and select the value-of var2 if value-of var1 is null.
Haven't had any success. Any ideas are appreciated...
Thanks.

- madhav

<xsl:choose>
<xsl:when test="not(normalize-space('{$var1}') = normalize-space(' '))">
<xsl:value-of select="$var1" />
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$var2" />
</xsl:o therwise>
</xsl:choose>

[Map edited code to reduce page width]
[ November 05, 2002: Message edited by: Mapraputa Is ]

[Roseanne Zhang]

1) You'd better post the entire code, instead of code snippet
2) Remember, xsl:variable select="something" is actually constant. You cannot change it.
3) xsl aram select="something" is default value, it can be replaced by real value.
I don't know what you want to do.

[Madhav Lakkapragada]

I agree with the const thingy. I am not changing the values of var1 and var2. In programming language terms:

if (var1 != null)
   System.out.println("Name = " + var1);
else
   System.out.println("Name = " + var2);

Give that var1 and var2 are declared as xsl:variables with appropriate "select" stmts to valid XPath locations, how should I write above rule in XSL......
Thanks.
- madhav.........try teaching XSL to a programmer!!!

[Madhav Lakkapragada]

Okay, I found that there is a string-length function and then what........
string-length('$var1') doesn't seem to work.....
Any help please.......
- madhav

[Roseanne Zhang]

Your answer, Sir!

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:variable name="var1" />
  <xsl:variable name="var2" select="'value2'" />
  <xsl:variable name="var3" select="'value3'" />
  
  <xsl:template match="/">
    <answer>
      <xsl:choose>
        <xsl:when test="$var1">
          <xsl:value-of select="$var1" />
        </xsl:when>
        <xsl:when test="$var2">
          <xsl:value-of select="$var2" />
        </xsl:when>
        
        <xsl :-o	 therwise>
          <xsl:value-of select="$var3" />
        </xsl :-o	 therwise>
      </xsl:choose>
    </answer>
  </xsl:template>
</xsl:stylesheet>

- Roseanne.........try teaching XSL to a programmer!!!
[ November 05, 2002: Message edited by: Roseanne Zhang ]

[Ron Newman]

   <xsl:choose>
      <xsl:when test="$var1">
          Name = <xsl:value-of select="$var1"/>
      </xsl:when>
      <xsl:otherwise>
          Name = <xsl:value-of select="$var2"/>
      </xsl:otherwise>
   </xsl:choose>

[ November 05, 2002: Message edited by: Ron Newman ]

[Ron Newman]

What problem are you having with string-length() ?

[Madhav Lakkapragada]

What problem are you having with string-length() ?
When I declared xsl:variable, the test never worked. I changed it to xsl:param and my changes seem to work.
Now I am attempting to print the value of the lenght......
<xsl:if test="string-length(normalize-space($param1)) > 1">
xyz = string(string-length(normalize-space($param1)))
</xsl:if>

[Ron Newman]

The function won't be found or evaluated in plain text.
It works only in an XSL tag. You need to change your code to:

<xsl:if test="string-length(normalize-space($param1)) > 1">
xyz = <xsl:value-of select="string-length(normalize-space($param1))"/>
</xsl:if> 

[ November 05, 2002: Message edited by: Ron Newman ]

[Madhav Lakkapragada]

aha!!!.
Thanks.
- madhav

[Roseanne Zhang]

Ron
How did you get "otherwise" posted correctly? Did you escape "o" or column? Just curious.
Let me try

<xsl:otherwise>See it works or not.</xsl:otherwise>

Roseanne

[Roseanne Zhang]

Hey, it works!!!
I used &#58; to escape ":". Excellent!!!
I'll not fix the other posts by me. Other people will learn the lesson by comparison.
[ November 05, 2002: Message edited by: Roseanne Zhang ]

[Ron Newman]

I checked off "Disable smilies in this post" under "Options".

[Mapraputa Is]

But if you still want to use smiles somewhere in your post besides xsl tags :roll: you have to resort to Roseanne's trick.