>> Okay. The purpose of BNF (at least as I envision it) is to >> produce/specify a *context-free* "grammar". A lexer parses the tokens >> specified in the BNF into an Abstract Syntax Tree. If one can produce >> such a tree for any given source, the language, in theory, can be >> compiled by GCC into an executable. >> >> Boom. >> > But you still need to specify the semantics.
In my world, like writing pseudo-code or flow-charts, the AST *is* the semantics. What world are you guys from? -- MarkJ Tacoma, Washington -- https://mail.python.org/mailman/listinfo/python-list
