[11235813213455]

recursive descent parser, normally any decent developer can do that, my version: https://caub.github.io/misc/calculator

[Aardwolf]

"-2 ** 3 SyntaxError: unparenthesized unary expression can't appear on the left-hand side of '*' "

That's actually a great error, I have made the mistake of expecting "-2 ** 2" would output 4 instead of -4 before.

[pedrosorio]

^ fyi, this comment reveals you didn't RTFA

[11235813213455]

Correct, but my goal was just to get the same result than JS `eval()`except for -n * m because in my opinion this shouln't require parenthesis. It's still a good learn to do this, I don't want to deal with floating points things etc..