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Subject: Re: [docbook-apps] XSL customisation layer: directory structure

Just realised I'd only sent this to Bob, when I meant to send it to the 
group, in case anyone else had a similar problem...


Thanks Bob!  That helped - I've made sense of it now.

I was mixing up two kinds of error.

In my new files with custom templates, oXygen was giving me the warnings
about (other) templates not existing, etc. via its "little red lines".
I mistakenly thought those were telling me what was stopping the
transformation from working.

But in fact, the transformation was only being stopped by a place where
I'd still (or again - after all this moving stuff about :-) ) got the
wrong relative address in the entity tag.  As soon as I fixed that, the
transformation worked again.

oXygen is _still_ giving me little-red-line warnings about missing
templates, but it seems to me now that I can just ignore those, in that
they're only true within the context of one file by itself.  (i.e. that
file by itself "doesn't know" that by the time it has to do anything,
I'll have imported docbook.xsl as well.)

Please correct me if I'm wrong in my interpretation there...

Other than that, seems like everything's working OK now - it's just
minorly annoying to be stuck with the irrelevant red lines, which
_usually_ mean something I'd want to pay attention to.  (Or maybe
there's a way of telling oXygen not to worry in this context?  in which
case that would be useful...)  (mind you this is only oXygen 8.2, not
the latest, so maybe they _have_ done that in a later one...)


Bob Stayton wrote:
> Hi Jennifer,
> This is curious.  There are almost no constraints on where the various 
> stylesheet modules are located.  They can be scattered over many 
> directories, as the DocBook XSL files are.  You could even import with 
> an http URL.
> In general, a relative import address is taken as relative to the file 
> that contains the xsl:import element. That keeps things pretty simple, 
> fortunately. For each import, you just have to confirm the location 
> relative to that file.  Once you import the DocBook docbook.xsl file, it 
> will handle its own relative imports.
> Arranging your customization files outside the distributed files is good 
> practice, not foolish, and highly recommended for easy maintenance and 
> updates.  But clearly something is going wrong with your setup.  I can't 
> tell what it is from the information so far. Can you provide more 
> details? That kind of error means some XSL files are not being read for 
> some reason. Are there no other error messages?
> Bob Stayton
> Sagehill Enterprises
> bobs@sagehill.net
> ----- Original Message ----- From: "Jennifer Moore" 
> <jennifer@uncharted-worlds.org>
> To: <docbook-apps@lists.oasis-open.org>
> Sent: Monday, March 30, 2009 2:12 PM
> Subject: [docbook-apps] XSL customisation layer: directory structure
>> Hello all
>> (and a belated thanks to Mauritz and Bob for helpful replies to my last
>> question, which I seem to have neglected to report back on at the time -
>> have got link title attributes working nicely now via XLink.)
>> I'd been thinking I'd like to learn how to do a custom layer of XSL, so
>> as to tweak my HTML output a bit.
>> I've successfully made an initial file as described in Bob's book
>> (example 9.1 here:
>> http://www.sagehill.net/docbookxsl/CustomMethods.html#CustomizationLayer)
>> and begun to create my own templates, of which I currently have a 
>> couple in separate files, imported e.g. like this to the main one:
>> <xsl:import href="emphasis_custom.xsl"/>
>> Well, I was getting on OK until I got the bright idea that perhaps it 
>> would be best to move the various custom files into a separate 
>> directory rather than having them mixed in with the default ones.  At 
>> that point things stopped working.  So now I am wondering if in fact 
>> that was a foolish idea :-)
>> Is it _possible_ to use different directories, and if so, what do I 
>> need to do to make the relative addressing work so the templates can 
>> "see" each other?
>> Or do the custom files have to be in the same directory as the docbook 
>> default ones?  and in that case, is there any particular naming 
>> convention, for making the custom files easily identifiable if & when 
>> I upgrade and want to copy them over?
>> For background, here's what I did:
>> First I had set up a subdirectory of the html directory, and made my 
>> "top level" custom file call docbook like this:
>> <xsl:import href="../docbook.xsl"/>
>> It wasn't happy till I corrected the relative addressing for
>> <!ENTITY % common.entities SYSTEM "../common/entities.ent">
>> %common.entities;
>> ]>
>> by making it
>> <!DOCTYPE xsl:stylesheet [
>> <!ENTITY % common.entities SYSTEM "../../common/entities.ent">
>> %common.entities;
>> ]>
>> Then I got errors like "No template exists named anchor".
>> Then as an alternative I tried making a custom directory at the same 
>> level as the html directory, with
>> <xsl:import href="../html/docbook.xsl"/>
>> and changing the ENTITY thing above back to what it was before.
>> But I was still getting error messages of "No template exists named ...".
>> It seemed like one template could only "see" another if they were in 
>> the same directory.
>> (though oddly enough it doesn't seem to mind having the "main" custom 
>> layer file in another directory - but then at present that one isn't 
>> calling any templates, only importing others that do.)
>> Thanks in advance for clues.
>> Jennifer
>> -- 
>> www.uncharted-worlds.org/blog/
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