private SymTabEntry parseRoutineName(Token token, String dummyName) throws Exception {
SymTabEntry routineId = null;
// Parse the routine name identifier.
if (token.getType() == IDENTIFIER) {
String routineName = token.getText().toLowerCase();
routineId = symTabStack.lookupLocal(routineName);
// Not already defined locally: Enter into the local symbol table.
if (routineId == null) {
routineId = symTabStack.enterLocal(routineName);
routineId.appendLineNumber(token.getLineNumber());
}
// If already defined, it should be a forward definition.
else {
routineId = null;
errorHandler.flag(token, IDENTIFIER_REDEFINED, this);
}
token = nextToken(); // consume routine name identifier
} else {
errorHandler.flag(token, MISSING_IDENTIFIER, this);
}
// If necessary, create a dummy routine name symbol table entry.
if (routineId == null) {
routineId = symTabStack.enterLocal(dummyName);
}
return routineId;
}
