[orion-dev] Editor plugin : edit only part of an XML doc ?

[Remi Vankeisbelck <VANKEISB@xxxxxxxxxx>]

Hi,

I'm looking for some advice. 

We deal with projects that have specific
files inside, with our own DSLs, allowing to define rules and such stuff.


Those files contain the text of the
DSL, wrapped into XML, as we need additional properties, not the text only
:

<rule>
  <foo>bar</foo>
  <dsl>this is a dsl !</dsl>
</rule>

In eclipse, we already provide custom
editors for these files. They implement the UI of the editor, and the loading
of the resource (the XML with DSL inside). Therefore, they can extract
the DSL and show the text in a specific Editor, and also show other properties
as they see fit.

I'm now trying to edit those files in
Orion. I have customized the editor with plugins that know the grammar
etc for our DSLs. I can actually edit my DSLs using the orion editor, works
fine.

Problem is, the DSL is inside an XML
doc, which opens as-is into orion. Therefore my "parser" ain't
happy with the whole XML, it expects only the DSL text to be used.

I'd like to extract the DSL text from
the XML doc in some way, and edit this only in the orion editor. The XML
would not be displayed in the editor. Then, on save, I need to add the
XML back around the potentially modified DSL text. I basically want the
editor to edit only an element's text in a XML doc...

What's the preferred way to do this
? Any idea ? I was thinking about modifying the buffer in my plugin, extract
the text, keep the rest of the xml at hand for later etc... looks pretty
ugly for now I must say :/

I guess I probably have to rewrite a
full "custom editor", which would embed the regular Orion editor
? Just like if I'd write my own editor with custom widgets inside ? 

TIA

Rémi
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