Function xmlParseAttValueInternal

ThirdParty/libxml2/vtklibxml2/parser.c:4302–4531

* xmlParseAttValueInternal: * @ctxt: an XML parser context * @len: attribute len result * @alloc: whether the attribute was reallocated as a new string * @normalize: if 1 then further non-CDATA normalization must be done * * parse a value for an attribute. * NOTE: if no normalization is needed, the routine will return pointers * directly from the data buffer. * * 3.3.3 Attribut

 *     caller if it was copied, this can be detected by val[*len] == 0.
 */
static xmlChar *
xmlParseAttValueInternal(xmlParserCtxtPtr ctxt, int *attlen, int *alloc,
                         int normalize, int isNamespace) {
    unsigned maxLength = (ctxt->options & XML_PARSE_HUGE) ?
                         XML_MAX_HUGE_LENGTH :
                         XML_MAX_TEXT_LENGTH;
    xmlSBuf buf;
    xmlChar *ret;
    int c, l, quote, flags, chunkSize;
    int inSpace = 1;
    int replaceEntities;

    /* Always expand namespace URIs */
    replaceEntities = (ctxt->replaceEntities) || (isNamespace);

    xmlSBufInit(&buf, maxLength);

    GROW;

    quote = CUR;
    if ((quote != '"') && (quote != '\'')) {
	xmlFatalErr(ctxt, XML_ERR_ATTRIBUTE_NOT_STARTED, NULL);
	return(NULL);
    }
    NEXTL(1);

    if (ctxt->inSubset == 0)
        flags = XML_ENT_CHECKED | XML_ENT_VALIDATED;
    else
        flags = XML_ENT_VALIDATED;

    inSpace = 1;
    chunkSize = 0;

    while (1) {
        if (PARSER_STOPPED(ctxt))
            goto error;

        if (CUR_PTR >= ctxt->input->end) {
            xmlFatalErrMsg(ctxt, XML_ERR_ATTRIBUTE_NOT_FINISHED,
                           "AttValue: ' expected\n");
            goto error;
        }

        /*
         * TODO: Check growth threshold
         */
        if (ctxt->input->end - CUR_PTR < 10)
            GROW;

        c = CUR;

        if (c >= 0x80) {
            l = xmlUTF8MultibyteLen(ctxt, CUR_PTR,
                    "invalid character in attribute value\n");
            if (l == 0) {
                if (chunkSize > 0) {
                    xmlSBufAddString(&buf, CUR_PTR - chunkSize, chunkSize);