Module rsc::parser

For using the symbols generated by the lexer and making sense of them in the context of mathematical expressions.

Enums

Expr
ParserError

Functions

parse	Turn an array of tokens into an expression, which can be computed into a final number.
parse_no_preprocess	Same as parse, except this does not automatically run preprocess. There are a few reasons one may use this function:
preprocess	For detecting parsing errors using an iterative solution. This function can tell when users accidentally enter an expression such as "2x" (when they mean "2(x)"). But just as easily detects unknowingly valid expressions like "neg 3" where "neg" is currently Token::Identifier.