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RE: [xsl] XSL:FO Identify Transforms

2011-09-16 12:17:31
Thanks Ken,

Based on this template:
<xsl:template match="node() | @*">
        <xsl:copy>
                <xsl:apply-templates select="@* | node()" />
        </xsl:copy>
</xsl:template>

I was trying to construct in FO, but not quite there. I feel I am missing your 
suggestion


                                <fo:flow flow-name="xsl-region-body">
                                        <fo:table>
                                        <fo:table-column column-width="200mm"/>
                                                <fo:table-body border="1pt 
solid red">
                                                        <fo:table-row 
text-align="center">
                                                                <fo:table-cell>
                                                                        
<xsl:for-each select="node() | @*">
                                                                                
<fo:block>
                                                                                
        <xsl:for-each select="@* | node()">
                                                                                
                <fo:inline>
                                                                                
                        <xsl:value-of select="." />
                                                                                
                </fo:inline>
                                                                                
        </xsl:for-each>
                                                                                
</fo:block>
                                                                        
</xsl:for-each>
                                                                </fo:table-cell>
                                                        </fo:table-row>
                                                </fo:table-body>
                                        </fo:table>
                                </fo:flow>
Reagrds

Chris
-----Original Message-----
From: G. Ken Holman [mailto:gkholman(_at_)CraneSoftwrights(_dot_)com] 
Sent: 16 September 2011 17:33
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] XSL:FO Identify Transforms

At 2011-09-16 17:19 +0100, you wrote:
I have an XSL I use for identifying the XML - e.g. takes the XML and 
transforms it into another XML. This works as expected when it's XSLT.
However I need to make this work in the same work but using XSL:FO so 
that it can be made pretty for print and outputted as a PDF.

I am sure this should be simple, and I am missing something obvious.

A user's vocabulary cannot simply be copied into an XSL-FO file, just in the 
same way it cannot simply be copied into an HTML file.

How can I get the <xsl:copy> and <xsl:elements> working in FO, or 
something similar?

By not using those instructions and translating your input into appropriate 
XSL-FO constructs.

For example, match on your block-level constructs and use <fo:block>, and match 
on your inline-level constructs and use <fo:inline>.

<xsl:template match="/ | node()">
                <xsl:copy>
                   <xsl:apply-templates select="@* | node()" />
                </xsl:copy>
</xsl:template>

Above you are copying your input

<xsl:template match="@*" >
                <xsl:element name="attribute">
                                <xsl:attribute name="name">
                                                <xsl:value-of  
select="local-name()" />
                                </xsl:attribute>
                                <xsl:value-of select="." />
                </xsl:element>
</xsl:template>

Unrelated to your question, the above can be replaced with:

<xsl:template match="@*"><xsl:copy/></xsl:template>

.... or even incorporated into a single template rule with:

<xsl:template match="node() | @*">
                 <xsl:copy>
                    <xsl:apply-templates select="@* | node()" />
                 </xsl:copy>
</xsl:template>

... but it is still inappropriate in your stylesheet to go to XSL-FO.

SAMPLE XML:
<?xml version="1.0" encoding="UTF-8"?>
<xml>
            <header>
                        <test>This is  test</test>
            </header>
</xml>

The XSL-FO specification tells an engine to tolerate elements it does not 
recognize when those elements are not in the XSL-FO namespace, but it throws 
them and their content away.

The HTML specification tells a browser to tolerate elements it does not 
recognize, but it still processes the content of that unrecognized element.

Again, draw the parallel to HTML:  if you used the identity transform in a 
stylesheet going to HTML, your end result would have <header> and <test> 
elements in the HTML and you wouldn't get a pretty print because a browser does 
not recognize your vocabulary.  In HTML you have to build a document of <div> 
and <span> (or whatever HTML) from your XML.

Similarly, when using XSL-FO you have to build a document of <block> and 
<inline> (or whatever XSL-FO) from your XML, because the engine does not 
recognize your vocabulary.

I hope this helps.

. . . . . . . . . . .  Ken


--
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