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document scope difficulty (Was: decode( source, ... )

Subject: document scope difficulty (Was: decode( source, ... )
From: "Clark C. Evans" <clark.evans@xxxxxxxxxxxxxxxxxxxx>
Date: Tue, 5 Oct 1999 01:54:22 -0400 (EDT)
Is there a way to specify the "primary" document
in a <xsl:for-each select="" > construct?  

On Sun, 3 Oct 1999, James Clark wrote:
> <xsl:value-of
>   select="document('month.xml')
>            /months/month[number(substring('19991003',5,2))]"/>

This was *sweet* ... now I'd like to take it one step further
and drive report headers/footers using this technique.
Unfortunately, the document() specifier works too well...
it seems to be changing the entire scope of the construct.

Here is an example for illustration:

----------------- stylesheet.xsl ------------------
<xsl:stylesheet
  xmlns:xsl="http://www.w3.org/XSL/Transform/1.0";
  xmlns="http://www.w3.org/TR/REC-html40";
  result-ns="">
<xsl:template match="/">
   <html>
  <xsl:for-each select="document('two.xml')//day-list" >
     <xsl:value-of select="day" />
     <xsl:value-of select="sum(//amount)" />
   </xsl:for-each>
  </html>
</xsl:template>
</xsl:stylesheet>
----------------- one.xml -------------------------
<entry-list>
  <entry>
    <day>mon</day>
    <amount>34</amount>
  </entry>
</entry-list>
----------------- two.xml -------------------------
<root>
  <day-list>
    <day>mon</day>
  </day-list>
  <amount> 99 </amount>
</root>
----------------- command line --------------------
xt one.xml stylesheet.xsl
----------------- expected output -----------------
mon 34
----------------- actual output -------------------
mon 99
---------------------------------------------------

The sum(//amount), unfortunately, seems to be
pointing at document two.xml, not document one.xml.

Any way to fix this "scope" problem? 

Of course, I could "sum(document('one.xml')//amount)", however:

a) I was not expecting document('two.xml') to change
   the current root node; is this a bug?

b) You can't hard code the input file name beacuse
   it will change; perhaps a param could be set automagically?

c) I found that document('') means the stylesheet...
   so I was hoping for some other like trick!

Thank you!

Clark


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