Tcl_ParseVar      100 tcl.h          extern char *		Tcl_ParseVar();
Tcl_ParseVar      688 tclBasic.c     			value = Tcl_ParseVar(interp, src, &tmp);
Tcl_ParseVar      252 tclExpr.c      	    var = Tcl_ParseVar(infoPtr->interp, p, &infoPtr->expr);