I use AROS Text Editor on a regular basis to edit c source code. I've always wished that someone would add Syntax Highlighting and fix the annoying text indentation errors!

So this is what I did...

In order to integrate syntax highlighting the editor needs to be able to randomly change pen colors to render the tokens and non-tokens.

In Jed.c in the write_text function that draws the text in the rasterport I changed the foreground text pen color. First I changed it to light blue. But that color is available in prefs. So I changed to bright red just to be sure of the results.

Next I need to add a new function called "write_syntax" that will draw the colored and non-colored text based on token class or non-tokens which don't contain any keywords.

Actually, I might need a Syntax Parser too to isolate the tokens and non-tokens in a text string (syntax highlighting). ;-)

@AMIGASYSTEM

You're the expert when it comes to fonts! Where can I find the Font Manager? I'd like to install new fonts such as Verdana or Sans Serif.

There are many fonts in the Fonts drawer but only some are installed.

I downloaded Deja Vu Fonts and Open Sans Fonts but I don't know how to install then on AROS.

I tested the syntax highlighting using Annotate. It can be used but it's not visually appealing to me. It works.

I suggest you to use a common format for the syntax highlight capability of the new editor.
The one from TextMate is very quell known.
I use Sublime Text (an editor with its core written in C++, but with Python embedded and control and enhance everything), which uses a YAML version of TextMate format, which is easier and more convenient to edit nowadays:
https://docs.subl...xdefs.html
https://www.subli...yntax.html

This tutorial explains how to install fonts:
https://arosnews.github.io/how-to-change-system-language/

@retrofaza

Thanks for the link. That's what I was looking for.

@cdimauro

Thanks for the links for the syntax definition files. VSCode uses TextMate.Here's another example of TextMate highlighting that I found.

In a way I kinda like the simplicity of the syntax highlighting from Scintilla. It's just enough to make the source code easier to navigate.

This is a screenshot of Scintilla on the right and the Rich Text Format exported from Scintilla and pasted in Microsoft Word. That's a nice feature in Scintilla "Copy as RTF" for syntax.