Method parseRegion

src/common/TimeZoneUtil.cpp:506–541

Parses a time zone id from a region string.

// Parses a time zone id from a region string.
USHORT TimeZoneUtil::parseRegion(const char* str, unsigned strLen)
{
	const char* end = str + strLen;

	skipSpaces(str, end);

	const char* start = str;

	while (str < end &&
		((*str >= 'a' && *str <= 'z') ||
		 (*str >= 'A' && *str <= 'Z') ||
		 *str == '_' ||
		 *str == '/' ||
		 (str != start && *str >= '0' && *str <= '9') ||
		 (str != start && *str == '+') ||
		 (str != start && *str == '-')))
	{
		++str;
	}

	unsigned len = str - start;

	skipSpaces(str, end);

	if (str == end)
	{
		string s(start, len);
		USHORT id;

		if (timeZoneStartup().getId(s, id))
			return id;
	}

	status_exception::raise(Arg::Gds(isc_invalid_timezone_region) << string(start, end));
	return 0;
}

// Format a time zone to string, as offset or region.
unsigned TimeZoneUtil::format(char* buffer, size_t bufferSize, USHORT timeZone, bool fallback, SLONG offset)