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
|
// re2c $INPUT -o $OUTPUT -i --header lexer/state.h
#include <assert.h>
#include <stddef.h>
#include "lexer/state.h" // the header is generated by re2c
/*!header:re2c:on*/
typedef struct {
const char *str, *cur;
/*!stags:re2c format = "const char *@@;"; */
} LexerState;
/*!header:re2c:off*/
long lex(LexerState* st) {
const char *t;
/*!re2c
re2c:header = "lexer/state.h";
re2c:yyfill:enable = 0;
re2c:define:YYCTYPE = "unsigned char";
re2c:define:YYCURSOR = "st->cur";
re2c:tags = 1;
re2c:tags:expression = "st->@@";
[a]* @t [b]* { return t - st->str; }
*/
}
int main() {
const char *s = "ab";
LexerState st = { s, s /*!stags:re2c format = ", NULL"; */ };
assert(lex(&st) == 1);
return 0;
}
|
