I'm trying to make a string with a certain combination of characters which is causing compiler errors. I want to make a string with the following characters:

pstvx14.,?/="+

With the escape character for the quote mark, it should be:

str="pstvx14.,?/=\"+"

If you copy just that line into PICO-8 and try and run it, you'll get the following error:

syntax error line 1
<eof>
<name> expected near ','

If you delete the . then the , then the ? you'll get a different error each time (unexpected symbol, syntax error). If you then delete the / it's fine, so the following string is ok:

str="pstvx14=\"+"

Different combinations of punctuation will give varying errors. It seems like this is a parser error?

There's also a highlighting error when you have a string containing just the backslash character:

str="\\"
--this should be grey not blue
--the blue stops here:" grey

This code compiles and runs fine because it's valid syntax, but the editor doesn't highlight it correctly.

And it counts the tokens in this case! Reported this two weeks ago.