ref: e047274e8dedebb9588a82e48e6cd9d7e50cae79
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
}