@techee, I think we're finally done with keywords. :+1:
Now, on to a messier issue I just detected.
In SWI-Prolog, relational operators are prefixed with `@` when used as arguments; for example, in the overloaded form of the very common [`sort` predicate][0].
Visual Prolog interprets the `@` token as the start of a verbatim string, and [Lexilla's lexer][1] imposes that style on every Prolog document:
~~~cpp if (sc.state == SCE_VISUALPROLOG_DEFAULT) { if (sc.Match('@') && isOpenStringVerbatim(sc.chNext, closingQuote)) { sc.SetState(SCE_VISUALPROLOG_STRING_VERBATIM); ~~~
I guess Geany could always intercept or override the `SCE_VISUALPROLOG_STRING_VERBATIM` lexical class, or simply ignore it. In my view it's the lexer that needs adapting to comply better with the Prolog implementation that users will actually use. That said, I don't think this warrants an upstream patch, since the lexer is just working as advertised.
[0]: https://www.swi-prolog.org/pldoc/doc_for?object=sort/4 [1]: https://github.com/ScintillaOrg/lexilla/blob/843bb9e1688305cd64484f09bac0b0e...