Example #1
0
  /*-------------------*/
  void _item(bool isRequired, 
             const char *kw, const char *desc, 
             const AzBytArr &s_dflt, 
             bool no_quotes=false)
  {
    if (out.isNull()) return; 
    int indent = ind; 
    if (isRequired) indent-=2; 
    AzPrint o(out); 
    o.printBegin("", " ", "", indent); 
    if (isRequired) o.print("*"); 

    AzBytArr s_kw; 
    if (no_quotes) s_kw.concat(kw); 
    else           s_kw.inQuotes(kw, "\""); 
    int len = kw_width - s_kw.length(); 
    if (len > 0) {
      AzBytArr s_fill; 
      s_fill.fill(' ', len); 
      s_kw.concat(&s_fill); 
    }
    AzBytArr s_desc(desc); 
    s_desc.concat(&s_dflt);    
    _multi_lines(&s_desc, ind+kw_width+1);  

    o.print(s_kw); 
    if (len >= 0) {
      o.print(s_desc); 
    }
    else {
      o.printEnd(); 
      o.printBegin("", "", "", ind+kw_width+1); 
      o.print(s_desc); 
    }
    o.printEnd();   
  }
Example #2
0
bool ParserTablePropertiesQuery::parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected)
{
    Pos begin = pos;

    ParserWhitespaceOrComments ws;
    ParserKeyword s_exists("EXISTS");
    ParserKeyword s_describe("DESCRIBE");
    ParserKeyword s_desc("DESC");
    ParserKeyword s_show("SHOW");
    ParserKeyword s_create("CREATE");
    ParserKeyword s_table("TABLE");
    ParserString s_dot(".");
    ParserIdentifier name_p;

    ASTPtr database;
    ASTPtr table;
    std::shared_ptr<ASTQueryWithTableAndOutput> query;

    ws.ignore(pos, end);

    if (s_exists.ignore(pos, end, max_parsed_pos, expected))
    {
        query = std::make_shared<ASTExistsQuery>();
    }
    else if (s_describe.ignore(pos, end, max_parsed_pos, expected) || s_desc.ignore(pos, end, max_parsed_pos, expected))
    {
        query = std::make_shared<ASTDescribeQuery>();
    }
    else if (s_show.ignore(pos, end, max_parsed_pos, expected))
    {
        ws.ignore(pos, end);

        if (!s_create.ignore(pos, end, max_parsed_pos, expected))
            return false;

        query = std::make_shared<ASTShowCreateQuery>();
    }
    else
    {
        return false;
    }

    ws.ignore(pos, end);

    s_table.ignore(pos, end, max_parsed_pos, expected);

    ws.ignore(pos, end);

    if (!name_p.parse(pos, end, table, max_parsed_pos, expected))
        return false;

    ws.ignore(pos, end);

    if (s_dot.ignore(pos, end, max_parsed_pos, expected))
    {
        database = table;
        if (!name_p.parse(pos, end, table, max_parsed_pos, expected))
            return false;

        ws.ignore(pos, end);
    }

    ws.ignore(pos, end);

    query->range = StringRange(begin, pos);

    if (database)
        query->database = typeid_cast<ASTIdentifier &>(*database).name;
    if (table)
        query->table = typeid_cast<ASTIdentifier &>(*table).name;

    node = query;

    return true;
}
bool ParserTablePropertiesQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
{
    ParserKeyword s_exists("EXISTS");
    ParserKeyword s_temporary("TEMPORARY");
    ParserKeyword s_describe("DESCRIBE");
    ParserKeyword s_desc("DESC");
    ParserKeyword s_show("SHOW");
    ParserKeyword s_create("CREATE");
    ParserKeyword s_database("DATABASE");
    ParserKeyword s_table("TABLE");
    ParserToken s_dot(TokenType::Dot);
    ParserIdentifier name_p;

    ASTPtr database;
    ASTPtr table;
    std::shared_ptr<ASTQueryWithTableAndOutput> query;

    bool parse_only_database_name = false;

    if (s_exists.ignore(pos, expected))
    {
        query = std::make_shared<ASTExistsQuery>();
    }
    else if (s_show.ignore(pos, expected))
    {
        if (!s_create.ignore(pos, expected))
            return false;

        if (s_database.ignore(pos, expected))
        {
            parse_only_database_name = true;
            query = std::make_shared<ASTShowCreateDatabaseQuery>();
        }
        else
            query = std::make_shared<ASTShowCreateTableQuery>();
    }
    else
    {
        return false;
    }

    if (parse_only_database_name)
    {
        if (!name_p.parse(pos, database, expected))
            return false;
    }
    else
    {
        if (s_temporary.ignore(pos, expected))
            query->temporary = true;

        s_table.ignore(pos, expected);

        if (!name_p.parse(pos, table, expected))
            return false;

        if (s_dot.ignore(pos, expected))
        {
            database = table;
            if (!name_p.parse(pos, table, expected))
                return false;
        }
    }

    if (database)
        query->database = typeid_cast<ASTIdentifier &>(*database).name;
    if (table)
        query->table = typeid_cast<ASTIdentifier &>(*table).name;

    node = query;

    return true;
}