Why not to extend NVU, if under MPL? Having two different editors seems a bit awkward to me, don't you?

(From Alex: N|Vu extensions are certainly a possibility. But N|Vu is heavily oriented towards (X)HTML. Personally, I'd favor a N|Vu-like XHTML language pack for this multilanguage editor.)

http://www.glazman.org/weblog/dotclear/index.php?2005/04/13/989-editing-xml-documents

(From Alex: I've been aware of glazou's intent to build such an editor, and I support his efforts 100%... I hadn't read that particular article. I'd been prompted because I wrote my little One-for-one blog entry about a year ago, and nothing happened.)

Uh, what about a generic XML editor which does code completion based on a schema/dtd? Like XMLBuddy for Eclipse.

~Grauw

yes, yes, yes.

Someone please do it. please please please

I think my ideal XML-language-editor would look much like Mozilla's "This XML file doesn't appear to be styled, so here's the DOM in a clickable list" view - only editable, and with as much IntelliSense-style completion as can be squeezed from whatever DTDs Mozilla knows about. Oh, and a live preview pane for the document wouldn't go astray. And maybe outliner-style drag-and-drop editing.

I do like NVu as an (X)HTML editor, but the fact is that the traditional word-processor interface doesn't map neatly onto a nice hierarchical tag structure, and NVu's usability suffers as a result. I'm afraid that any attempt at a Nice GUI Editor for any of those other XML dialects would suffer the same malady - so raw text editing is probably the best bet, with as many aids and helpers as you can get.

Think Visual Studio 2005, it supports multiple languages. Then add in some kind of Keyword or <tag> that would define sections of a different language.
As for a whiteboard - how about the Wiki? There's a XUL IDE doc there already.

Disruptive Innovations working on a WYSIWYG XML editor.

http://www.glazman.org/weblog/dotclear/index.php?2005/04/13/989-editing-xml-documents
http://ljouanneau.com/blog/2005/04/13/418-mon-projet-actuel

See also http://cuneaform.mozdev.org/

You mean something like http://wiki.mozilla.org/XUL:IDE ?

(Someone should remind me that we need more wikis, so that folks find information. Oops, sarcasm.)

How WYSIWYG could such an editor be? How much functionality would overlap between a WYSIWYG MathML editor and one for SVG?

Well, DTD files seem the obvious choice for language configuration.

Then just make a nice xml editor out of it.

BXE is a mozilla-based XML editor with validation that could serve as a starting point: http://bxe.oscom.org

Komodo?

http://www.activestate.com/Products/Komodo/more_information.plex

I don't think DTDs would be it: They do not support namespaces - something what is really necessary to mix different XML-based languages. So, XML Schema and/or RelaxNG support is needed. As far as I know (as I do not have anything to do with developing Mozilla), the XForms group is working on a XML Schema support.

I like the idea of this editor, too. Please keep us uptodate about this topic. Thanks.