Re: Design question: GtkTextView/Buffer

[Darryl Ross <djr dazco com au>]

Dudley Irish wrote:

> I am experimenting with various ways to edit XML files.  I have tried
> various diagram oriented approaches (trees and various graphs) and am
> now trying a text oriented approach.  In order to do this, I need to
> be able to convert the XML into a text representation then back into
> XML.  So far I have tried two approaches: using tags and using
> pixbufs.
I'm working on a similar project. I've used pixbufs for the tags. 
Unfortunately work has gotten in the way of my project and it has been 
put on hold for a while :(


> Given a textual representation of a structure how can I map pieces of
> the text back to the internal representation?
>
> Here is an example:  Given this XML:
>
>     <frame id=1234>
>     A fair bit of cdata text.
>     </frame>
>
> I want a textual representation that looks like:
>
>     FRAME:
>
>       A fair bit of cdata text.
I've made a bit of progress into this. I'm using libxml I have writen a 
custom GtkTreeStore that uses a libxml dom tree as it's underlying 
datasource. I then use hash tables to map GtkTextMarks to nodes in the 
tree. This way I am able to find nodes in the TextBuffer. I can send you 
the code I have so far if you are interested, or I can put it up 
somewhere on the web.

Darryl

--
Darryl Ross
Principal Consultant, Dazco Technology ABN: 58 829 870 455
+61 3 9734 2466 http://www.dazco.com.au