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
|
/* Generated by re2d */
// re2d $INPUT -o $OUTPUT -i --header lexer/state.d
module main;
import core.stdc.stddef;
import lexer.state; // the module is generated by re2c
private long lex(ref LexerState yyrecord) {
const(char)* t;
{
char yych;
goto yy0;
yy1:
++yyrecord.yycursor;
yy0:
yych = *yyrecord.yycursor;
switch (yych) {
case 'a': goto yy1;
case 'b':
yyrecord.yyt1 = yyrecord.yycursor;
goto yy3;
default:
yyrecord.yyt1 = yyrecord.yycursor;
goto yy2;
}
yy2:
t = yyrecord.yyt1;
{ return t - yyrecord.str; }
yy3:
++yyrecord.yycursor;
yych = *yyrecord.yycursor;
switch (yych) {
case 'b': goto yy3;
default: goto yy2;
}
}
}
void main() {
const(char)* s = "ab";
LexerState st = {s, s , null};
assert(lex(st) == 1);
const(char)* s2 = "aaabbbbbbbb";
LexerState st2 = {s2, s2 , null};
assert(lex(st2) == 3);
}
/* Generated by re2d */
module lexer.state;
struct LexerState {
const(char)* str, yycursor;
const(char)* yyt1;
};
d/headers/header.re:25:21: warning: rule matches empty string [-Wmatch-empty-string]
|
