blob: bca08eb737446cb2c6771f6cce891e61f8774a0b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
package bjc.dicelang.v2;
import bjc.utils.funcdata.FunctionalList;
import bjc.utils.funcdata.FunctionalMap;
import bjc.utils.funcdata.IList;
import bjc.utils.funcdata.IMap;
import java.util.HashSet;
import java.util.Set;
import static bjc.dicelang.v2.Token.Type.*;
public class Shunter {
// The binary operators and their
// priorities
private IMap<Token.Type, Integer> ops;
// Unary operators that can only be
// applied to non-operator tokens
private Set<Token.Type> unaryAdjectives;
// Unary operators that con only be
// applied to operator tokens
private Set<Token.Type> unaryAdverbs;
private final int MATH_PREC = 20;
private final int DICE_PREC = 10;
private final int EXPR_PREC = 0;
public Shunter() {
ops = new FunctionalMap<>();
unaryAdjectives = new HashSet<>();
unaryAdverbs = new HashSet<>();
ops.put(ADD, 0 + MATH_PREC);
ops.put(SUBTRACT, 0 + MATH_PREC);
ops.put(MULTIPLY, 1 + MATH_PREC);
ops.put(IDIVIDE, 1 + MATH_PREC);
ops.put(DIVIDE, 1 + MATH_PREC);
ops.put(DICEGROUP, 0 + DICE_PREC);
ops.put(DICECONCAT, 1 + DICE_PREC);
ops.put(LET, 0 + EXPR_PREC);
ops.put(BIND, 1 + EXPR_PREC);
}
public IList<Token> shuntTokens(IList<Token> tks) {
IList<Token> returned = new FunctionalList<>();
for(Token tk : tks.toIterable()) {
}
return returned;
}
}
|
