Module grammar 

Functions

build_expression_grammar

Build a grammar that parses a single expression (Phase 2). Start rule is “start” → ws expr ws eof.

build_grammar

Build the LeekScript grammar (Phase 1: token stream).

build_program_grammar

Build a grammar that parses a program (Phase 3/4: list of statements). Start rule is “start” → node(NodeRoot, ws program ws eof) so the parse tree has a single root.

build_signature_grammar

Build the signature file grammar. Start rule: start → sig_ws sig_file sig_ws eof.