Re: [Exist-development] XProc XML Calabash extension committed, ready for testing

[James F. <jam...@ex...>]

addenda:

I removed calabash.jar and saxon9pe.jar from lib/user for now until we
figure out how we want to deploy ... you will need to download and install
these jars yourself to test for now.

thx, J

On 3 May 2010 09:27, James Fuller <jam...@ex...> wrote:

> Hello,
>
> Just wanted to announce that we now have XML Calabash [1] integrated as an
> extension with eXist.
>
> This allows us to use more sophisticated XProc processing whilst I build
> eXist own XProc implementation (which I have a planned upcoming release).
>
> --------------------
> Dependencies
> --------------------
>
>     * lib/user/calabash.jar - I have programmed extension so we should just
> be able to 'drop in' latest version of XML Calabash
>
>     * lib/user/saxon9pe.jar - needed as saxon is primary dep
>
> -------
> Build
> -------
>
>     * edit your local.build.properties (or build.properties)
>
>      include.module.xmlcalabash = true
>
>      * rebuild eXist
>
> ----------
> Enable
> ----------
>
>     * edit your conf.xml
>
>     <module class="org.exist.xquery.modules.xmlcalabash.XMLCalabashModule"
>           uri="http://xmlcalabash.com" />
>
>     * restart eXist
>
> ----------
> Usage
> ----------
>
>    * upload an XProc pipeline somewhere into eXist (ex.
> /db/xmlcalabash/pipe.xml)
>
> <?xml version="1.0"?>
> <p:declare-step version="1.0" xmlns:p="http://www.w3.org/ns/xproc">
> <p:input port="source">
>   <p:inline><doc>Helloworld</doc></p:inline>
> </p:input>
> <p:output port="result"/>
> <p:identity/>
> </p:declare-step>
>
>
>    * invoke using xmlcalabash:process (in sandbox for example)
>
> let $result :=
> xmlcalabash:process("xmldb:exist:///db/xmlcalabash/pipe.xml","-")
> return
>    $result
>
> ----------
> Status
> ----------
>
> Currently there are a few limitations with this extension
>
> * func signature will change soon to accept xml for pipeline, output, as
> well as specify input/output/parameter ports and options ... for now its
> primitive
>
> * function returns a string (which you can parse back into xml using eXist
> function) ... need to stay this way for a little bit during testing, will
> add smart serialization in a bit
>
> * p:xquery has no context with eXist ... this is a big limitation, but
> there are several ways around this
>
> * use xmldb:exist type URI
>
> * no documentation, will probably add to existing XProc area
>
> I wanted to 'throw over the wall' the draft version of this extension so I
> can get feedback now.
>
> thx, J
>
> [1] XML Calabash - http://xmlcalabash.com/
>