Function xmlXPtrEvalChildSeq

ThirdParty/libxml2/vtklibxml2/xpointer.c:1175–1213

* xmlXPtrEvalChildSeq: * @ctxt: the XPointer Parser context * @name: a possible ID name of the child sequence * * ChildSeq ::= '/1' ('/' [0-9]*)* * | Name ('/' [0-9]*)+ * * Parse and evaluate a Child Sequence. This routine also handle the * case of a Bare Name used to get a document ID. */

 * case of a Bare Name used to get a document ID.
 */
static void
xmlXPtrEvalChildSeq(xmlXPathParserContextPtr ctxt, xmlChar *name) {
    /*
     * XPointer don't allow by syntax to address in multirooted trees
     * this might prove useful in some cases, warn about it.
     */
    if ((name == NULL) && (CUR == '/') && (NXT(1) != '1')) {
        xmlXPtrErr(ctxt, XML_XPTR_CHILDSEQ_START,
		   "warning: ChildSeq not starting by /1\n", NULL);
    }

    if (name != NULL) {
	valuePush(ctxt, xmlXPathNewString(name));
	xmlFree(name);
	xmlXPathIdFunction(ctxt, 1);
	CHECK_ERROR;
    }

    while (CUR == '/') {
	int child = 0, overflow = 0;
	NEXT;

	while ((CUR >= '0') && (CUR <= '9')) {
            int d = CUR - '0';
            if (child > INT_MAX / 10)
                overflow = 1;
            else
                child *= 10;
            if (child > INT_MAX - d)
                overflow = 1;
            else
                child += d;
	    NEXT;
	}
        if (overflow)
            child = 0;
	xmlXPtrGetChildNo(ctxt, child);
    }
}


/**