
static void
xmlXPathCompPathExpr(xmlXPathParserContextPtr ctxt) {
    int lc = 1;           /* Should we branch to LocationPath ?         */
    xmlChar *name = NULL; /* we may have to preparse a name to find out */

    SKIP_BLANKS;
    if ((CUR == '$') || (CUR == '(') ||
	(IS_ASCII_DIGIT(CUR)) ||
        (CUR == '\'') || (CUR == '"') ||
	(CUR == '.' && IS_ASCII_DIGIT(NXT(1)))) {
	lc = 0;
    } else if (CUR == '*') {
	/* relative or absolute location path */
	lc = 1;
    } else if (CUR == '/') {
	/* relative or absolute location path */
	lc = 1;
    } else if (CUR == '@') {
	/* relative abbreviated attribute location path */
	lc = 1;
    } else if (CUR == '.') {
	/* relative abbreviated attribute location path */
	lc = 1;
    } else {
	/*
	 * Problem is finding if we have a name here whether it's:
	 *   - a nodetype
	 *   - a function call in which case it's followed by '('
	 *   - an axis in which case it's followed by ':'
	 *   - a element name
	 * We do an a priori analysis here rather than having to
	 * maintain parsed token content through the recursive function
	 * calls. This looks uglier but makes the code easier to
	 * read/write/debug.
	 */
	SKIP_BLANKS;
	name = xmlXPathScanName(ctxt);
	if ((name != NULL) && (xmlStrstr(name, (xmlChar *) "::") != NULL)) {
#ifdef DEBUG_STEP
	    xmlGenericError(xmlGenericErrorContext,
		    "PathExpr: Axis\n");
#endif
	    lc = 1;
	    xmlFree(name);
	} else if (name != NULL) {
	    int len =xmlStrlen(name);


	    while (NXT(len) != 0) {
		if (NXT(len) == '/') {
		    /* element name */
#ifdef DEBUG_STEP
		    xmlGenericError(xmlGenericErrorContext,
			    "PathExpr: AbbrRelLocation\n");
#endif
		    lc = 1;
		    break;
		} else if (IS_BLANK_CH(NXT(len))) {
		    /* ignore blanks */
		    ;
		} else if (NXT(len) == ':') {
#ifdef DEBUG_STEP
		    xmlGenericError(xmlGenericErrorContext,
			    "PathExpr: AbbrRelLocation\n");
#endif
		    lc = 1;
		    break;
		} else if ((NXT(len) == '(')) {
		    /* Node Type or Function */
		    if (xmlXPathIsNodeType(name)) {
#ifdef DEBUG_STEP
		        xmlGenericError(xmlGenericErrorContext,
				"PathExpr: Type search\n");
#endif
			lc = 1;
#ifdef LIBXML_XPTR_ENABLED
                    } else if (ctxt->xptr &&
                               xmlStrEqual(name, BAD_CAST "range-to")) {
                        lc = 1;
#endif
		    } else {
#ifdef DEBUG_STEP
		        xmlGenericError(xmlGenericErrorContext,
				"PathExpr: function call\n");
#endif
			lc = 0;
		    }
                    break;
		} else if ((NXT(len) == '[')) {
		    /* element name */
#ifdef DEBUG_STEP
		    xmlGenericError(xmlGenericErrorContext,
			    "PathExpr: AbbrRelLocation\n");
#endif
		    lc = 1;
		    break;
		} else if ((NXT(len) == '<') || (NXT(len) == '>') ||
			   (NXT(len) == '=')) {
		    lc = 1;
		    break;
		} else {
		    lc = 1;
		    break;
		}
		len++;
	    }
	    if (NXT(len) == 0) {
#ifdef DEBUG_STEP
		xmlGenericError(xmlGenericErrorContext,
			"PathExpr: AbbrRelLocation\n");
#endif
		/* element name */
		lc = 1;
	    }
	    xmlFree(name);
	} else {
	    /* make sure all cases are covered explicitly */
	    XP_ERROR(XPATH_EXPR_ERROR);
	}
    }

    if (lc) {
	if (CUR == '/') {
	    PUSH_LEAVE_EXPR(XPATH_OP_ROOT, 0, 0);
	} else {
	    PUSH_LEAVE_EXPR(XPATH_OP_NODE, 0, 0);
	}
	xmlXPathCompLocationPath(ctxt);
    } else {
	xmlXPathCompFilterExpr(ctxt);
	CHECK_ERROR;
	if ((CUR == '/') && (NXT(1) == '/')) {
	    SKIP(2);
	    SKIP_BLANKS;

	    PUSH_LONG_EXPR(XPATH_OP_COLLECT, AXIS_DESCENDANT_OR_SELF,
		    NODE_TEST_TYPE, NODE_TYPE_NODE, NULL, NULL);
	    PUSH_UNARY_EXPR(XPATH_OP_RESET, ctxt->comp->last, 1, 0);

	    xmlXPathCompRelativeLocationPath(ctxt);
	} else if (CUR == '/') {
	    xmlXPathCompRelativeLocationPath(ctxt);
	}
    }