Function htmlParsePI

ThirdParty/libxml2/vtklibxml2/HTMLparser.c:3242–3345

* htmlParsePI: * @ctxt: an HTML parser context * * Parse an XML Processing Instruction. HTML5 doesn't allow processing * instructions, so this will be removed at some point. */

 * instructions, so this will be removed at some point.
 */
static void
htmlParsePI(htmlParserCtxtPtr ctxt) {
    xmlChar *buf = NULL;
    int len = 0;
    int size = HTML_PARSER_BUFFER_SIZE;
    int cur, l;
    int maxLength = (ctxt->options & XML_PARSE_HUGE) ?
                    XML_MAX_HUGE_LENGTH :
                    XML_MAX_TEXT_LENGTH;
    const xmlChar *target;
    xmlParserInputState state;

    if ((RAW == '<') && (NXT(1) == '?')) {
	state = ctxt->instate;
        ctxt->instate = XML_PARSER_PI;
	/*
	 * this is a Processing Instruction.
	 */
	SKIP(2);

	/*
	 * Parse the target name and check for special support like
	 * namespace.
	 */
        target = htmlParseName(ctxt);
	if (target != NULL) {
	    if (RAW == '>') {
		SKIP(1);

		/*
		 * SAX: PI detected.
		 */
		if ((ctxt->sax) && (!ctxt->disableSAX) &&
		    (ctxt->sax->processingInstruction != NULL))
		    ctxt->sax->processingInstruction(ctxt->userData,
		                                     target, NULL);
                goto done;
	    }
	    buf = (xmlChar *) xmlMallocAtomic(size);
	    if (buf == NULL) {
		htmlErrMemory(ctxt);
		return;
	    }
	    cur = CUR;
	    if (!IS_BLANK(cur)) {
		htmlParseErr(ctxt, XML_ERR_SPACE_REQUIRED,
			  "ParsePI: PI %s space expected\n", target, NULL);
	    }
            SKIP_BLANKS;
	    cur = CUR_CHAR(l);
	    while ((cur != 0) && (cur != '>')) {
		if (len + 5 >= size) {
		    xmlChar *tmp;

		    size *= 2;
		    tmp = (xmlChar *) xmlRealloc(buf, size);
		    if (tmp == NULL) {
			htmlErrMemory(ctxt);