#include "re1.5.h"

int _re1_5_classmatch(const char *pc, const char *sp)

{

// pc points to "cnt" byte after opcode

int is_positive = (pc[-1] == Class);

int cnt = *pc++;

while (cnt--) {

if (*sp >= *pc && *sp <= pc[1]) return is_positive;

pc += 2;

}

return !is_positive;

}

int _re1_5_namedclassmatch(const char *pc, const char *sp)

{

// pc points to name of class

int off = (*pc >> 5) & 1;

if ((*pc | 0x20) == 'd') {

if (!(*sp >= '0' && *sp <= '9')) {

off ^= 1;

}

} else if ((*pc | 0x20) == 's') {

if (!(*sp == ' ' || (*sp >= '\t' && *sp <= '\r'))) {

off ^= 1;

}

} else { // w

if (!((*sp >= 'A' && *sp <= 'Z') || (*sp >= 'a' && *sp <= 'z') || (*sp >= '0' && *sp <= '9') || *sp == '_')) {

off ^= 1;

}

}

return off;

}