There is an XSLT training course at Pluralsight, watching which should
help you find the correct answers to these questions:
http://www.pluralsight.com/training/Courses/TableOfContents/xslt-foundations-part1
On Mon, Jun 23, 2014 at 1:17 PM, Mailing Lists Mail
daktapaal(_at_)gmail(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
Need to know the behavior of the node() function… This mail contains
two parts. Part 2 is kind of a corollary of part 1.
I have the following XML
<Comp>
<a>Universal</a>
<b>HSBC</b>
<c>Disney </c>
<d>Barclays</d>
</Comp>
PART1
I wanted to test some stylesheet behaviors .. I used three stylesheets :
Stylesheet 1
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:fo="http://www.w3.org/1999/XSL/Format"xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:fn="http://www.w3.org/2005/xpath-functions";>
<xsl:template match="node()|@*">
<xsl:apply-templates/>
</xsl:template>
</xsl:stylesheet>
Stylesheet 2
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:fo="http://www.w3.org/1999/XSL/Format"xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:fn="http://www.w3.org/2005/xpath-functions";>
<xsl:template match="*">
<xsl:apply-templates/>
</xsl:template>
</xsl:stylesheet>
Stylesheet 3
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:fo="http://www.w3.org/1999/XSL/Format"xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:fn="http://www.w3.org/2005/xpath-functions";>
<xsl:template match="/">
<xsl:apply-templates/>
</xsl:template>
</xsl:stylesheet>
I was expecting all the three stylesheets to copy the text nodes to the
target.
While the stylesheet2 and stylesheet 3 did that, the stylesheet 1 did
not output anything ( wondered why?? )..
What I was thinking the stylesheet1 will do is :
1. Match any node() or the attribute node .
2. Apply template to the children and self
3. Default template rule will kick in as I haven’t mentioned
any node. This will :
a. Do value-of select for text nodes
b. Do apply-templates for the element nodes ( * )
With that, I was expecting
Universal
HSBC
Disney
Barclays
This is what the Stylesheet 2 and Stylesheet 3 produces
SO the answer was in the fact that node() does not match text()??
So I added
<xsl:template match="text()">
<xsl:value-of select="."/>
</xsl:template>
This came with what I wanted.. ( both happy and disappointed )
Happy as it brought me to a logical end, and disappointed as it dint
work like I initially thought it would.
STOPPING HERE : Needed some insights into what I just wrote before
going further…
PART2
Further, This leads me to a (dangerous) way of saying : Select only
node c and nothing else.
I could do :
1. The normal intuitive way ( Approach A)
<xsl:template match="/">
<xsl:apply-templates select = “c”/>
</xsl:template>
<xsl:template match="c">
<xsl:value-of select="."/>
</xsl:template>
2. The somewhat dangerous way (based on the observation in PART1
) ( Approach B )
<xsl:template match="node()|@*">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="c">
<result>
<xsl:value-of select="."/>
</result>
</xsl:template>
<!—Other nodes will not be cared for or other nodes does nothing (but why??)
I would have thought, the other nodes will be matched, and text nodes
be printed, but did not, as in PART1. (= reasons for calling Part 2
as corollary to part 1)
à
Approach B is not intuitive for me. But somehow doing the same thing
as approach A. Although I will NEVER use the approach B.
Any Idea why this is so.. are there situations where approach B wont
work? I want to think approach B is Wrong and will fail some how..
Dak/
--
Cheers,
Dimitre Novatchev
---------------------------------------
Truly great madness cannot be achieved without significant intelligence.
---------------------------------------
To invent, you need a good imagination and a pile of junk
-------------------------------------
Never fight an inanimate object
-------------------------------------
To avoid situations in which you might make mistakes may be the
biggest mistake of all
------------------------------------
Quality means doing it right when no one is looking.
-------------------------------------
You've achieved success in your field when you don't know whether what
you're doing is work or play
-------------------------------------
To achieve the impossible dream, try going to sleep.
-------------------------------------
Facts do not cease to exist because they are ignored.
-------------------------------------
Typing monkeys will write all Shakespeare's works in 200yrs.Will they
write all patents, too? :)
-------------------------------------
I finally figured out the only reason to be alive is to enjoy it.
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