xmlParseInternalSubset(xmlParserCtxtPtr ctxt) {
    /*
     * Is there any DTD definition ?
     */
    if (RAW == '[') {
        ctxt->instate = XML_PARSER_DTD;
        NEXT;
	/*
	 * Parse the succession of Markup declarations and
	 * PEReferences.
	 * Subsequence (markupdecl | PEReference | S)*
	 */
	while ((RAW != ']') && (ctxt->instate != XML_PARSER_EOF)) {
	    const xmlChar *check = CUR_PTR;
	    unsigned int cons = ctxt->input->consumed;

	    SKIP_BLANKS;
	    xmlParseMarkupDecl(ctxt);
	    xmlParsePEReference(ctxt);

	    /*
	     * Pop-up of finished entities.
	     */
	    while ((RAW == 0) && (ctxt->inputNr > 1))
		xmlPopInput(ctxt);

	    if ((CUR_PTR == check) && (cons == ctxt->input->consumed)) {
		xmlFatalErr(ctxt, XML_ERR_INTERNAL_ERROR,
	     "xmlParseInternalSubset: error detected in Markup declaration\n");
		break;
	    }
	}
	if (RAW == ']') {
	    NEXT;
	    SKIP_BLANKS;
	}
    }

    /*
     * We should be at the end of the DOCTYPE declaration.
     */
    if (RAW != '>') {
	xmlFatalErr(ctxt, XML_ERR_DOCTYPE_NOT_FINISHED, NULL);
	return;
    }
    NEXT;
}
Unknown