ref: b548687a8ed1d0a159c9d3f3f921d93bbb56908e
dir: /appl/spree/engines/liars.y/
%{ YYSTYPE: adt { }; YYLEX: adt { lval: YYSTYPE; lex: fn(l: self ref YYLEX): int; error: fn(l: self ref YYLEX, err: string); toks: list of string; }; %} %module Sh { # module definition is in shell.m } %token A ALL AND BROKEN FIVE FOUR FUCK FULL HIGH %token HOUSE KIND LOW NOTHING OF ON PAIR PAIRS STRAIGHT THREE TWO VALUE %start phrase %% phrase: nothing | pair | twopairs | threes | lowstraight | fullhouse | highstraight | fours | fives pair: PAIR | PAIR ofsomething ',' extras nothing: NOTHING | BROKEN STRAIGHT | FUCK ALL twopairs: TWO PAIRS moretuppers | TWO VALUE optcomma TWO VALUE and_a VALUE | PAIR OF VALUE ',' PAIR OF VALUE and_a VALUE moretuppers: | ',' VALUE ',' VALUE and_a VALUE threes: THREE OF A KIND extras | THREE VALUE extras lowstraight: LOW STRAIGHT fullhouse: FULL HOUSE | FULL HOUSE optcomma VALUE | FULL HOUSE optcomma VALUE ON VALUE | FULL HOUSE optcomma VALUE HIGH highstraight: HIGH STRAIGHT fours: FOUR OF A KIND extras | FOUR VALUE extras fives: FIVE OF A KIND | FIVE VALUE and_a: # null | AND A optcomma: | ',' extras: VALUE | extras VALUE %% Tok: adt { s: string; tok: int; val: int; }; known := array of { Tok("an", A, -1), Tok("a", A, -1), Tok("all", ALL, -1), Tok("and", AND, -1), Tok("broken", BROKEN, -1), Tok(",", ',', -1), Tok("five", FIVE, -1), Tok("5", FIVE, -1), Tok("four", FOUR, -1), Tok("4", FOUR, -1), Tok("fuck", FUCK, -1), Tok("full", FULL, -1), Tok("high", HIGH, -1), Tok("house", HOUSE, -1), Tok("kind", KIND, -1), Tok("low", LOW, -1), Tok("nothing", NOTHING, -1), Tok("of", OF, -1), Tok("on", ON, -1), Tok("pair", PAIR, -1), Tok("pairs", PAIRS, -1), Tok("straight", STRAIGHT, -1), Tok("three", THREE, -1), Tok("3", THREE, -1), Tok("two", TWO, -1), Tok("2", TWO, -1), Tok("A", VALUE, 5), Tok("K", VALUE, 4), Tok("Q", VALUE, 3), Tok("J", VALUE, 2), Tok("10", VALUE, 1), Tok("9", VALUE, 0), Tok("ace" }; YYLEX.lex(l: self ref YYLEX): int { if (l.toks == nil) return -1; t := hd l.toks; for (i := 0; i < len known; i++) { if (known[i].t0 == t) return known[i].t1; case hd l.toks { %token A ALL AND BROKEN FIVE FOUR FUCK FULL HIGH %token HOUSE KIND LOW NOTHING OF ON PAIR PAIRS STRAIGHT THREE TWO VALUE %token END }