/**
* Translates a given expression in the format expected by the cas.
*
* @param ve the Expression to be translated
* @param casStringType one of StringType.{MAXIMA, MPREDUCE, MATH_PIPER}
* @return the translated String.
*/
protected String translateToCAS(ValidExpression ve, StringType casStringType) {
Kernel kernel = ve.getKernel();
StringType oldPrintForm = kernel.getCASPrintForm();
kernel.setCASPrintForm(casStringType);
try {
ValidExpression tmp = ve;
if (!ve.isExpressionNode()) tmp = new ExpressionNode(kernel, ve);
String body = ((ExpressionNode) tmp).getCASstring(casStringType, true);
// handle assignments
String label = ve.getLabel();
if (label != null) { // is an assignment or a function declaration
// make sure to escape labels to avoid problems with reserved
// CAS labels
label = kernel.printVariableName(casStringType, label);
if (ve instanceof FunctionNVar) {
FunctionNVar fun = (FunctionNVar) ve;
return translateFunctionDeclaration(label, fun.getVarString(), body);
}
return translateAssignment(label, body);
}
return body;
} finally {
kernel.setCASPrintForm(oldPrintForm);
}
}
