Method StringToBool

tools/shell/shell.cpp:1276–1296

** Interpret zArg as either an integer or a boolean value. Return 1 or 0 ** for TRUE and FALSE. Return the integer value if appropriate. */

** for TRUE and FALSE.  Return the integer value if appropriate.
*/
bool ShellState::StringToBool(const string &zArg) {
	idx_t i;
	if (zArg[0] == '0' && zArg[1] == 'x') {
		for (i = 2; hexDigitValue(zArg[i]) >= 0; i++) {
		}
	} else {
		for (i = 0; zArg[i] >= '0' && zArg[i] <= '9'; i++) {
		}
	}
	if (i > 0 && zArg[i] == 0) {
		return bool(ShellState::StringToInt(zArg) & 0xffffffff);
	}
	if (StringUtil::CIEquals(zArg, "on") || StringUtil::CIEquals(zArg, "yes")) {
		return true;
	}
	if (StringUtil::CIEquals(zArg, "off") || StringUtil::CIEquals(zArg, "no")) {
		return false;
	}
	PrintF(PrintOutput::STDERR, "ERROR: Not a boolean value: \"%s\". Assuming \"no\".\n", zArg.c_str());
	return false;
}

/*
** Set or clear a shell flag according to a boolean value.