1#include "re1.5.h"
2
3int _re1_5_classmatch(const char *pc, const char *sp)
4{
5 // pc points to "cnt" byte after opcode
6 int is_positive = (pc[-1] == Class);
7 int cnt = *pc++;
8 while (cnt--) {
9 if (*sp >= *pc && *sp <= pc[1]) return is_positive;
10 pc += 2;
11 }
12 return !is_positive;
13}
14
15int _re1_5_namedclassmatch(const char *pc, const char *sp)
16{
17 // pc points to name of class
18 int off = (*pc >> 5) & 1;
19 if ((*pc | 0x20) == 'd') {
20 if (!(*sp >= '0' && *sp <= '9')) {
21 off ^= 1;
22 }
23 } else if ((*pc | 0x20) == 's') {
24 if (!(*sp == ' ' || (*sp >= '\t' && *sp <= '\r'))) {
25 off ^= 1;
26 }
27 } else { // w
28 if (!((*sp >= 'A' && *sp <= 'Z') || (*sp >= 'a' && *sp <= 'z') || (*sp >= '0' && *sp <= '9') || *sp == '_')) {
29 off ^= 1;
30 }
31 }
32 return off;
33}
34