I have a specific language (its private, and closed source) that I\'m writing code highlighting for in Notepad++. I\'ve never done anything like this before... so, for the m
There's a useful help page that explains how to use the GUI to define a custom language for Notepad++. As Alex K noted in a comment above, the option for setting string delimiters appears to be in the Delimiters boxes in the Operators tab. It doesn't look like it supports different colours for different levels of nesting, though.