private void validateNumArgs(int numArgs, FunctionMetadata fm) {
if (numArgs < fm.getMinParams()) {
String msg = "Too few arguments to function '" + fm.getName() + "'. ";
if (fm.hasFixedArgsLength()) {
msg += "Expected " + fm.getMinParams();
} else {
msg += "At least " + fm.getMinParams() + " were expected";
}
msg += " but got " + numArgs + ".";
throw new FormulaParseException(msg);
}
// the maximum number of arguments depends on the Excel version
int maxArgs;
if (fm.hasUnlimitedVarags()) {
if (_book != null) {
maxArgs = _book.getSpreadsheetVersion().getMaxFunctionArgs();
} else {
// _book can be omitted by test cases
maxArgs = fm.getMaxParams(); // just use BIFF8
}
} else {
maxArgs = fm.getMaxParams();
}
if (numArgs > maxArgs) {
String msg = "Too many arguments to function '" + fm.getName() + "'. ";
if (fm.hasFixedArgsLength()) {
msg += "Expected " + maxArgs;
} else {
msg += "At most " + maxArgs + " were expected";
}
msg += " but got " + numArgs + ".";
throw new FormulaParseException(msg);
}
}
