It’s silly to have so many keyword synonyms as specified in that earlier regex. I’m also glad we can’t specify numeric literals as roman numerals. KISS
Honestly I’d prefer if “yes” and “no” were the only ways to spell the boolean values. They make sense in pretty much all contexts where booleans are used, whereas “true” and “false” rarely make sense.
In boolean logic true/false is ubiquitious and well known.
As you can see, if one tries to be cute with it, one will get all sorts of issues.
So at this point it doesnt make sense to use anything else.
The true/false terminology makes sense in boolean logic because you’re dealing with the truth of propositions. However, it does not make sense in the context of a configuration language, where there are no propositions that could be true or false.
It makes sense in the context of a configuration language because virtually 100% of programmers and other technical computer users understand “true” and “false” as the canonical Boolean values, and as far as I know that has always been the case. It never would have made sense to invent different unfamiliar terms like “yes” and “no” because of some niche philosophical distinction between “Boolean logic” and “configuration” that almost nobody in the real world cares about.
They are familiar as English words, yes, but unfamiliar as terms of art for Boolean values in computing. It’d be like replacing “if” statements with “whenever” statements.