Function xmlSchemaValidateDates

ThirdParty/libxml2/vtklibxml2/xmlschemastypes.c:1778–1987

* xmlSchemaValidateDates: * @type: the expected type or XML_SCHEMAS_UNKNOWN * @dateTime: string to analyze * @val: the return computed value * * Check that @dateTime conforms to the lexical space of one of the date types. * if true a value is computed and returned in @val. * * Returns 0 if this validates, a positive error code number otherwise * and -1 in case of internal or API

 *         and -1 in case of internal or API error.
 */
static int
xmlSchemaValidateDates (xmlSchemaValType type,
	                const xmlChar *dateTime, xmlSchemaValPtr *val,
			int collapse) {
    xmlSchemaValPtr dt;
    int ret;
    const xmlChar *cur = dateTime;

#define RETURN_TYPE_IF_VALID(t)					\
    if (IS_TZO_CHAR(*cur)) {					\
	ret = _xmlSchemaParseTimeZone(&(dt->value.date), &cur);	\
	if (ret == 0) {						\
	    if (*cur != 0)					\
		goto error;					\
	    dt->type = t;					\
	    goto done;						\
	}							\
    }

    if (dateTime == NULL)
	return -1;

    if (collapse)
	while IS_WSP_BLANK_CH(*cur) cur++;

    if ((*cur != '-') && (*cur < '0') && (*cur > '9'))
	return 1;

    dt = xmlSchemaNewValue(XML_SCHEMAS_UNKNOWN);
    if (dt == NULL)
	return -1;

    if ((cur[0] == '-') && (cur[1] == '-')) {
	/*
	 * It's an incomplete date (xs:gMonthDay, xs:gMonth or
	 * xs:gDay)
	 */
	cur += 2;

	/* is it an xs:gDay? */
	if (*cur == '-') {
	    if (type == XML_SCHEMAS_GMONTH)
		goto error;
	  ++cur;
	    ret = _xmlSchemaParseGDay(&(dt->value.date), &cur);
	    if (ret != 0)
		goto error;

	    RETURN_TYPE_IF_VALID(XML_SCHEMAS_GDAY);

	    goto error;
	}

	/*
	 * it should be an xs:gMonthDay or xs:gMonth
	 */
	ret = _xmlSchemaParseGMonth(&(dt->value.date), &cur);
	if (ret != 0)