Re: [xsl] Recursively traversing an outline with level gaps

[Martynas Jusevicius <martynas.jusevicius@xxxxxxxxx>]

These are copyrighted texts, so I'm unfortunately not able to provide them..

On Wed, Mar 24, 2010 at 7:55 PM, Dimitre Novatchev <dnovatchev@xxxxxxxxx>
wrote:
> Where are the sample Xhtml and xml documents?
>
> On Wed, Mar 24, 2010 at 11:51 AM, Martynas Jusevicius
> <martynas.jusevicius@xxxxxxxxx> wrote:
>> Hey list,
>>
>> I want to create a nested list (ToC) from a XHTML source, which
>> contains @class attributes on elements.
>> A separate document, styles.xml, contains information about styles and
>> which outline level they belong to. @style:name matches @class in
>> XHTML.
>>
>> The tricky part is, that not all styles are necessarily used in XHTML.
>> And if they are, the outline hierarchy is not necessarily maintained
>> -- for example, only styles with level 1, 3 and 5 can be used.
>>
>> How would you traverse such a structure? My approach is to do it
>> recursively, by finding all styles for the current level, and all
>> elements of these styles (simplified):
>>
>> <xsl:template match="h:*">
>>  <xsl:param name="level" select="1"/>
>>  <xsl:variable name="level-classes" select="key('style-by-level',
>> $level, $styles-doc)//@style:name
>>  <xsl:variable name="level-elements" select="key('element-by-class',
>> $level-classes)"/>
>>  <li>
>>    <xsl:value-of select="."/>
>>    <ol>
>>      <xsl:apply-templates="$level-elements">
>>        <xsl:with-param name="level" select="$level + 1"/>
>>      </xsl:apply-templates>
>>    </ol>
>>  </li>
>> </xsl:template>
>>
>> But this gives problems since levels are not necessarily consecutive.
>> The first level can be 2, for example.
>> I also tried iterating only through actually used levels like (1, 3,
>> 5), but it's not a full solution either, because the level hierarchy
>> can differ in each branch.
>>
>> Help appreciated.
>>
>> Martynas
>> odt2epub.com
>>
>>
>
>
>
> --
> 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
> -------------------------------------
> You've achieved success in your field when you don't know whether what
> you're doing is work or play
> -------------------------------------
> I enjoy the massacre of ads. This sentence will slaughter ads without
> a messy bloodbath.