[thomasfoster96]

I've been playing around with creating a toy language which treats '-' as a name for a function. It means there always needs to be white space around a - (the syntax of the language isn't like LISP), but that increases readability at the cost of two extra key presses.

[kazinator]

Also, note that, in the same breath practically, you can support true negative integer constants:

   -1234

which are distinguished because there is no whitespace. You can distinguish the unary operator being applied to 1234 from a true -1234 constant.