Description
This is related to this answer to Does AppleSoft BASIC really parse "LE THEN" as "LET HEN"?.
It turns out then someone was using this emulator to develop some code, and came up with the following line:
7010 IF LS > LE THEN GOTO 7060
They then submitted the code, snake_expanded.a, to a repo. However, this code breaks on a real Apple II, and most other emulators.
It breaks because the line should be parsed as
7010 IF LS > LET HEN GOTO 7060
A screenshot illustrating the "correct" behaviour (as implemented by Applesoft):
The correct line would be
7010 IF LS > (LE) THEN GOTO 7060
See this answer for an explanation of the parentheses.
Unfortunately, your emulator does not pick up on that error, and any code runs as expected, although contrary to Applesoft's implementation.
The point is that code developed on this emulator, that suffers this parsing issue, might not work on a real Apple II, as snake_expanded.a illustrates.
Note: This PR states that the change was developed on this emulator.
Vaguely related, this is the issue raised against the BASIC code, snake_expanded.a: Line 7010: LE THEN parsed as LET HEN #9