Re: [docbook-apps] Something like an attribute-set, but different

[Geraint North <geraint@transitive.com>]

Thanks for that.

I'm having difficulty getting the desired effect, though (either with  
params or attribute sets), which I think is due to my  
misunderstanding of Xpath query syntax.  I've constructed a very  
small case that illustrates my misunderstanding.

Within an attribute-set, the following evaluates as true

   <xsl:when test="/book">

But the following does not:

   <xsl:when test="/book/info[1]">
nor does
   <xsl:when test="/book/info">

I would have thought that, since my <book> contains an <info>  
element, that the second and third expressions would each return one  
node, and thus evaluate to true.  This understanding is based on the  
following example from the W3 XPath specification (http://www.w3.org/ 
TR/xpath#path-abbrev)

"/doc/chapter[5]/section[2] selects the second section of the fifth  
chapter of the doc"

I'm sure that I'm making a very basic error here - could someone help  
me clarify my understanding?

Thanks,

Geraint North
Principal Engineer
Transitive
* The leader in cross-platform virtualization

This E-mail and any attachments hereto are strictly confidential and  
intended solely for the addressee. If you are not the intended  
addressee please notify the sender by return and delete the message.  
You must not disclose, forward or copy this E-mail or attachments to  
any third party without the prior consent of the sender.

On 13 Dec 2007, at 21:05, Bob Stayton wrote:

> Hi,
> Keep in mind that a top level parameter is processed once only,  
> when the stylesheet is loaded.  As such, a parameter is good for  
> global properties. For properties on elements with different  
> attributes or content, you can use something similar in the value  
> of an attribute inside an attribute-set.  For an example of that  
> syntax, see:
>
> http://www.sagehill.net/docbookxsl/PrintTableStyles.html#TableTitle
>
> An attribute-set is evaluated each time it is used on an element,  
> so the condition can resolve differently for different element  
> instances.
>
> Bob Stayton
> Sagehill Enterprises
> bobs@sagehill.net
>
>
> ----- Original Message ----- From: "Geraint North"  
> <geraint@transitive.com>
> To: "Thomas Schraitle" <tom_schr@web.de>
> Cc: <docbook-apps@lists.oasis-open.org>
> Sent: Thursday, December 13, 2007 12:29 AM
> Subject: Re: [docbook-apps] Something like an attribute-set, but  
> different
>
>
>> That's great - I didn't realise that the parameters could be   
>> dynamically configured in that way (but of course they can be,   
>> thinking about it) - that will make life very easy indeed.
>>
>> Thanks,
>>
>> Geraint North
>> Principal Engineer
>> Transitive
>>
>>
>> On 12 Dec 2007, at 19:29, Thomas Schraitle wrote:
>>
>>> Hi,
>>>
>>> On Mittwoch, 12. Dezember 2007, Geraint North wrote:
>>>>
>>>> I've got a few situations where I'd like to set some attributes  
>>>> based
>>>> on some top-level properties of my DocBook Book.  For example:
>>>> - If the <book>'s lang is "ja", use a set of Japanese fonts, rather
>>>> than the defaults.
>>>
>>> That's pretty easy. You have to create a customization layer as   
>>> shown in
>>> [1] and insert the following parameter:
>>>
>>>  <xsl:param name="body.font.family">
>>>    <xsl:choose>
>>>      <xsl:when test="/book/@lang='ja'">
>>>       <xsl:text><!-- Insert your fonts here --></xsl:text>
>>>      </xsl:when>
>>>      <xsl:otherwise>serif</xsl:otherwise>
>>>    </xsl:choose>
>>>  </xsl:param>
>>>
>>> Probably you need to configure the other parameters like  
>>> sans.font.family
>>> as well (see [2]).
>>>
>>>
>>>> - If the confidentiality level of the document (my own tag) is
>>>> "Confidential", print the chapter titles in black rather than blue.
>>>
>>> For this check I need to know where your confidentiality element is
>>> allowed.
>>>
>>> I am not 100% sure, maybe there are better methods, but you can   
>>> change the
>>> attribute set chapter.titlepage.recto.style (untested):
>>>
>>>  <xsl:attribute-set name="chapter.titlepage.recto.style">
>>>    <xsl:attribute name="color">
>>>      <xsl:choose>
>>>        <!-- Adapt the XPath in test to your needs -->
>>>        <xsl:when test="/*/confidentiality = 'Confidental'">
>>>          <xsl:text>black</xsl:text>
>>>        </xsl:when>
>>>        <xsl:otherwise>blue</xsl:otherwise>
>>>      </xsl:choose>
>>>    </xsl:attribute>
>>>  </xsl:attribute-set>
>>>
>>> Insert it into your customization layer too. :)
>>>
>>>
>>> Hope that helps,
>>> Tom
>>>
>>> ---------
>>> [1]
>>> http://www.sagehill.net/docbookxsl/  
>>> CustomMethods.html#CustomizationLayer
>>> [2] http://docbook.sourceforge.net/release/xsl/current/doc/fo/  
>>> fonts.html
>>>
>>>
>>> -- 
>>> Thomas Schraitle
>>>
>>> -------------------------------------------------------------------- 
>>> -
>>> To unsubscribe, e-mail: docbook-apps-unsubscribe@lists.oasis- 
>>> open.org
>>> For additional commands, e-mail: docbook-apps-help@lists.oasis-  
>>> open.org
>>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: docbook-apps-unsubscribe@lists.oasis-open.org
>> For additional commands, e-mail: docbook-apps-help@lists.oasis- 
>> open.org
>>
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: docbook-apps-unsubscribe@lists.oasis-open.org
> For additional commands, e-mail: docbook-apps-help@lists.oasis- 
> open.org
>