Possible addition of new language about exco

[matkuki]

Hi,

I don't think the QScintilla editing component, is the right tool for this, as it is meant to be a source code editor. All editor widgets inside ExCo use the QScintilla editing component.
Things that should not be a problem:

• Syntax Highlighting (different fonts, background/foreground color, ...)
• A browser keeping track of book structure
• Spell checker
• Details pane
• Commands to call my processing programs
  All other things concerning advanced styling of text like Syntax substitution and Command wrapping are not supported by default, so you would have to somehow implement them manually in QScintilla, which is probably not that trivial.

Another solution would be to create a new formatting component using QTextEdit with some additional processing code and then integrating it into ExCo (integration would be quite simple, the formatting component would probably be quite complex). QTextEdit supports rich text styling, which is a subset of HTML 4.0, if that is flexible enough for you:
https://doc.qt.io/qt-5/richtext-html-subset.html

But with regards to adding a new language with just the standard stuff, I would be glad to add it if you provide me with a specification (keywords, operators, special characters/words, ...) and an icon.

Regards