Exp parseTerm()
{
if (CurrentToken.Kind == TokenKind.LBS)
{
return(parseBracket());
}
else if (CurrentToken.Kind == TokenKind.RBS)
{
error("多余的右括号");
MoveNext();
return(null);
}
else if (CurrentToken.IsLiteral())
{
return(parseLiteral());
}
else if (CurrentToken.Kind == TokenKind.Ident && NextToken.Kind == TokenKind.Colon)
{
return(pareNV());
}
else if (CurrentToken.Kind == TokenKind.Ident)
{
return(parseIdent());
}
else
{
return(null);
}
}
bool expIsInExp()
{
if (isNewLine())
{
return(false);
}
return(CurrentKind == TokenKind.Ident || CurrentKind == TokenKind.LBS || CurrentToken.IsLiteral());
}
