#include "Regex.h"

char t[1024];

Regex empty("$^"), any(".*");

Regex::Regex(const String & regex, int cflags, int aeflags) throw (GeneralException) : eflags(aeflags) {
    int r;
    if ((r = regcomp(&preg, regex.to_charp(), cflags | REG_NOSUB))) {
	regerror(r, &preg, t, sizeof(t));
	throw GeneralException(String("Regex \"") + regex + "\" failed to compile: " + t + "\n");
    }
}

Regex::~Regex() {
    regfree(&preg);
}

bool Regex::Match(const String & s) const {
    if (regexec(&preg, s.to_charp(), 0, 0, eflags)) {
	return false;
    } else {
	return true;
    }
}