Hi Ticker!
I don't get a crash
Maybe there are other factors? I'm using AMD Ryzen, Windows 10, OpejJDK 18.0.1 (just have updated, 17.02 worked the same). I can create a set which cause crash, if you are interested. Right, it should be mkgmap:option:test, but I get a crash in both cases.
The "test" part of a rule must contain at least 1 "positive" limiting clause, as per the style-manual paragraph already mentioned.
So "tag existing" or "positive" means, that "test" have to include at least one check/condition equivalent to "tag=value" (including "tag=*")? If I only use single check, then I have to use "tag=value" and nothing else. It is OK, only not the common situation in programming.
The full "else" test also require positive limiting and this can only come from the "elseCond". Attempting:
if (someTag=*) then else () {actionIfNotSet} end
won't fool the rule processor and you'll get the "Invalid rule, unable to index" error.
It doesn't work, but this works: if (mkgmap:option:test=true) then else highway=* {...} end while these don't work (but should?): if (mkgmap:option:test!=true) then highway=* {...} end if (!(mkgmap:option:test=true)) then highway=* {...} end -- Best regards, Andrzej