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Subject:
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XSL Params inside When Test
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Posted By:
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shasto100
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Post Date:
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4/20/2006 5:23:57 PM
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Hi, i have the following when statement, inside the test I'm tring to use '$rowNo' parameter inside the string, because I'm using a recursive loop. Everything else works great but I want to be able to join, 1, 2 & 3 together.
1) <xsl:when test="contains(substring(//helper/row/row
2) $rowNo
3) /text(), $helperNo,2), '--')">
<xsl:when test="contains(substring(//helper/row/row$rowNo/text(), $helperNo,2), '--')">
I've tried concat (dont work, comes up with NaN2 in the output):
<xsl:when test="contains(concat(substring(//helper/row/row,$rowNo,/text(), $helperNo,2)), '--')">
-----------------------------------------
Input:
//helper/row
<row num="1">
<row1>01020304--0506070809--10111213</row1>
<row2>14--------15----------16------</row2>
<row3>17------18------------19------</row3>
<row4>20------21--------2223--------</row4>
<row5>------24--------25------------</row5>
</row>
------------------
Any help much much appreicated.
Tried the following too:
<xsl:variable name="starter" select="'substring(//helper/row/row'" />
<xsl:variable name="finisher" select="'/text()'" />
<xsl:variable name="finisher2" select="',$helperNo,2)'" />
...
<xsl:value-of select="$starter+$rowNo+$finisher+$finisher2"/>
...
Doesn't work either! :(
PLEASE PLEASE PLEASE - Just want to know if this is possible really (and how if available).
Thank you.
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Reply By:
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mhkay
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Reply Date:
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4/21/2006 4:20:17 AM
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Variables in XSLT work like in languages such as C, Java, or Javscript: they can be used anywhere you can use a *value*. They don't work like variables in a shell-script or other macro language, where they can replace any part of the text of an expression.
Using element names like <row1>, <row2> is pretty poor XML design. This is what attributes are designed for: <row nr="2">. But if you're saddled with this kind of structure, you can use
.../*[name() = concat('row', $rownr)]/...
Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference
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Reply By:
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mhkay
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Reply Date:
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4/21/2006 4:22:29 AM
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Again you are making the mistake of thinking that a variable holds a piece of XPath expression text. It doesn't - it holds a value. Use variables only where you might use say a number 2 or a string literal 'fred'.
Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference
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Reply By:
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shasto100
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Reply Date:
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4/21/2006 5:45:51 AM
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Thanks Michael, much appreciated.
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