Chinese NLE (1)

The first is lexical analysis.

Except for comments after [] and:, all tokens are separated by white spaces.

That is, [set [what? Ah ah] [add ah]: I am commenting

There is a token ([) (SET) ([) (what is it ?) (AH) (]) ([) (plus) (AH )(])(])

There are three types of token, one is parentheses, the other is various names, and the third is constants include numerical constants and string constants.

 

The syntax tree seems very easy to write.

Pair is the basis for writing internal data structures.

How to Write list and.

Chinese NLE (1)