/** * Resolves arguments, creates local variables and fills the vars and overlists * * @param c * @return list of arguments */ protected final GeoElement[] resArgsForZip(Command c) { // check if there is a local variable in arguments int numArgs = c.getArgumentNumber(); vars = new GeoElement[numArgs / 2]; over = new GeoList[numArgs / 2]; Construction cmdCons = (Construction) c.getKernel().getConstruction(); for (int varPos = 1; varPos < numArgs; varPos += 2) { String localVarName = c.getVariableName(varPos); if (localVarName == null) { throw argErr(app, c.getName(), c.getArgument(varPos)); } // add local variable name to construction GeoElement num = null; // initialize first value of local numeric variable from initPos boolean oldval = cons.isSuppressLabelsActive(); cons.setSuppressLabelCreation(true); GeoList gl = (GeoList) resArg(c.getArgument(varPos + 1))[0]; cons.setSuppressLabelCreation(oldval); num = gl.get(0).copyInternal(cons); cmdCons.addLocalVariable(localVarName, num); // set local variable as our varPos argument c.setArgument(varPos, new ExpressionNode(c.getKernel(), num)); vars[varPos / 2] = num.toGeoElement(); over[varPos / 2] = gl; // resolve all command arguments including the local variable just // created // remove local variable name from kernel again } GeoElement[] arg = resArgs(c); for (GeoElement localVar : vars) cmdCons.removeLocalVariable(localVar.getLabel()); return arg; }