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• Parser

Lexeme

Fixtype of lexemes.

This is a tagged union type, introduced by fty::deftagsum.

Member Tags → Types

:token → lexeme-token

:comment → lexeme-comment

:whitespace → lexeme-whitespace

This corresponds to lexeme in our ABNF grammar, but since for now we just skip over comments and whitespace, we have no additional information about them here.

Like token, this is abstract-syntax-like, but it is not part of the abstract syntax, because it is not needed there.

Subtopics

Lexeme-case

Case macro for the different kinds of lexeme structures.

Lexeme-fix

Fixing function for lexeme structures.

Lexeme-equiv

Basic equivalence relation for lexeme structures.

Lexemep

Recognizer for lexeme structures.

Lexeme-token

Lexeme-whitespace

Lexeme-comment

Lexeme-kind

Get the kind (tag) of a lexeme structure.