private ISqlNode ParseMaybeAliasedTable(ITokenizer t, Func <ITokenizer, ISqlNode> parse)
{
var node = parse(t);
var next = t.Peek();
SqlToken aliasToken = null;
Location location = null;
if (next.IsKeyword("AS"))
{
location = t.GetNext().Location;
aliasToken = t.GetIdentifierOrKeyword();
}
else if (next.IsType(SqlTokenType.Identifier))
{
aliasToken = t.GetNext();
}
if (aliasToken == null)
{
return(node);
}
var alias = new SqlAliasNode
{
Location = location ?? aliasToken.Location,
Source = node,
Alias = new SqlIdentifierNode(aliasToken)
};
if (t.Peek().IsSymbol("("))
{
alias.ColumnNames = ParseParenthesis(t, x => ParseList(x, ParseIdentifier)).Expression;
}
return(alias);
}