private ISearchExpression ParseSimpleExpression()
{
string s1 = ParseWordExpression();
string s2;
ISearchExpression exp;
switch (this.token)
{
case TokenType.Eq:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.Eq(s1, s2));
case TokenType.NotEq:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.NotEq(s1, s2));
case TokenType.EqProperty:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.EqProperty(s1, s2));
case TokenType.Gt:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.Gt(s1, s2));
case TokenType.Ge:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.Ge(s1, s2));
case TokenType.Lt:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.Lt(s1, s2));
case TokenType.Le:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.Le(s1, s2));
case TokenType.InG:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.InG(s1, GetArrayList(s2)));
case TokenType.GInG:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.GInG(s1, GetArrayList(s2)));
case TokenType.Like:
this.MoveNext();
s2 = ParseWordExpression();
return(SearchExpression.Like(s1, s2));
case TokenType.IsNull:
exp = SearchExpression.IsNull(s1);
this.MoveNext();
return(exp);
case TokenType.IsNotNull:
exp = SearchExpression.IsNotNull(s1);
this.MoveNext();
return(exp);
case TokenType.Sql:
exp = SearchExpression.Sql(s1);
this.MoveNext();
return(exp);
default:
throw new ArgumentException("Invalid token of " + token);
}
}
