blob: c14f52f5b76c93b63ac91136fe2b7b0714600416 (
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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* RegexParser
*
*/
function RegexParser(str) {
this.str = str;
}
RegexParser.prototype.parse = function() {
for (var i = 0; i < this.str.length; i++) {
switch(this.str[i]) {
case '(':
break;
case '|':
break;
case ')':
break
case '*':
break
default:
//alert(this.str[i]);
}
};
}
/*
* State
*
*/
function State(symbol) {
if(!symbol) {
symbol = '#';
}
this.symbol = symbol;
this.followUps = [];
this.marked = false;
}
State.prototype.mark = function(b) {
this.marked = b;
}
State.prototype.setFollowUp = function(index, state) {
if (!((index == 0) || (index==1)) ) return;
this.followUps[index] = state;
}
/*
* Nfa
*
*/
function Nfa(symbol) {
this.startState;
this.endState;
if (symbol) {
this.startState = new State(symbol);
this.endState = new State(false);
this.startState.setFollowUp(0, this.endState);
}
}
Nfa.prototype.concatination = function(nfa) {
this.endState.setFollowUp(0, nfa);
this.endState = nfa.endState;
}
Nfa.prototype.union = function(nfa) {
var s0 = new State();
var s1 = new State();
s0.setFollowUp(0, );
s1.setFollowUp(1, );
}
|