Re: XML - creating a list by hand (mkiv)

[Hans Hagen <pragma@wxs.nl>]

Peter Rolf wrote:
> Am 22.12.2009 14:04, schrieb Hans Hagen:
>> Peter Rolf wrote:
>>> Hi,
>>>
>>> can someone give me a helping hand with the following example. I still
>>> have no general survey over the XML related code in ConTeXt (donno
>>> what functions to use). The last time I played with it is one and a
>>> half year ago and many things have changed (meaning that the old
>>> examples no longer work).
>> http://www.pragma-ade.com/general/manuals/xml-mkiv.pdf
>>
> oeps, how could I missed that one... :(
> 
> 
>>> I simply want to create a XML document and insert some elements. My
>>> main problem is to insert an element at root level. I can insert an
>>> element before and after another element, but not into the element.
>>> I'm not sure, if I have understood the meaning of the pattern
>>> parameter correctly. Is this equal to XPath?
>>>
>>>
>>> %-----
>>> \starttext
>>>
>>> \startluacode
>>>
>>> local xmp = xml.convert("<?xml version='1.0'
>>> standalone='yes'?>\n<root>\n<bar>bla</bar>\n</root>")
>>> --xml.before(xmp,"/root/bar","<sub>foo</sub>")
>>>
>>> --xml.delete(xmp,"bar")
>>> --xml.inject(xmp,"/sub","<sub>bar</sub>")-- only for xml-files?
>>>
>>> xml.insert(xmp,"/root/bar","<sub/>")
>>> --xml.inject(xmp,"/*/bar","<sub/>")
>> this works
>>
>> <sub></sub>
>>
> Mhh, not here. When I look into the saved file (test.xml) I get

add some content (i need to look into the empty case (root only))

> <?xml version='1.0' standalone='yes'?>
> <root>
> <bar>bla</bar><error>invalid xml file - unparsed text</error>
> </root>
> 
> 
> But I guess that the linked PDF will give all the answers I need.

the most important change is that we now can have many handlers; when 
you are inside tex and want to manipulate xml without piping to tex, you 
need the xml:// path prefix but the manual mentions this

also, there are some tracing options that can be handy

Hans


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                                           Hans Hagen | PRAGMA ADE
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