internal/

Package ast declares the syntax tree of Kukel programs (syntax.ebnf, sections 1-3).

Package builtins implements Kukel's built-in functions.

Package bytecode defines the instruction set of the Kukel stack machine and the compiled program image.

Package compiler translates syntax trees into bytecode for the stack machine.

Package diag defines the error type shared by the lexer, parser and compiler: a message at a source position.

Package lexer turns Kukel source text into tokens (syntax.ebnf, section 4).

Package parser builds the syntax tree of a Kukel source file (syntax.ebnf, sections 1-3) by recursive descent.

Package token defines the lexical tokens of Kukel (syntax.ebnf, section 4).

Package value defines Kukel's runtime values and the semantics of the operators on them.

Package vm executes compiled Kukel programs on a stack machine.