public ColumnIndexOutOfBoundsException(TextualDatabase database, TextualTable table, int index)
{
TextualDatabase = database;
TextualTable = table;
message = string.Format(MESSAGE_FORMAT, table.Name, index);
}
public ColumnAlreadyExistsException(TextualDatabase database, TextualTable table, string column)
{
TextualDatabase = database;
TextualTable = table;
message = string.Format(MESSAGE_FORMAT, table.Name, column);
}
private TextualTable parseTable(TextualDatabase db)
{
// name:
string name = expectToken(TokenType.Identifier).Value;
expectToken(TokenType.Colon);
TextualTable table = new TextualTable(db, name);
// | column1 | column2 | column3 |
expectToken(TokenType.Pipe);
while (!matchToken(TokenType.Dash))
{
table.Columns.Add(expectToken(TokenType.Identifier).Value);
expectToken(TokenType.Pipe);
}
// -------------
while (acceptToken(TokenType.Dash))
{
;
}
// Rows
while (!matchToken(TokenType.Question))
{
table.AddRow(parseRow(table));
}
// ?
expectToken(TokenType.Question);
return(table);
}
public RowNotFoundException(TextualDatabase database, TextualTable table, TextualRow row)
{
TextualDatabase = database;
TextualTable = table;
TextualRow = row;
message = string.Format(MESSAGE_FORMAT, table.Name);
}
public TextualDatabase ParseDatabase(string name)
{
TextualDatabase db = new TextualDatabase(name);
while (!endOfStream)
{
db.AddTable(parseTable(db));
}
return(db);
}
public bool OpenDatabase(string file)
{
try
{
Database = TextualDatabase.Parse(file, File.ReadAllText(file));
}
catch (ComponentException ce)
{
throw ce;
}
catch (Exception)
{
return(false);
}
return(true);
}
public static TextualTable ExecuteOperation(TextualDatabase database, string op)
{
var tokens = new Scanner(op).Scan();
return(new OperationParser(database, tokens).Parse());
}
public TextualDeleteTableOperation(TextualDatabase database)
{
this.database = database;
}
public TableNotFoundException(TextualDatabase database, string tableName)
{
TextualDatabase = database;
message = string.Format(MESSAGE_FORMAT, database.Name, tableName);
}
public TableAlreadyExistsException(TextualDatabase database, string tableName)
{
TextualDatabase = database;
message = string.Format(MESSAGE_FORMAT, tableName);
}
public TextualCreateTableOperation(TextualDatabase database, string name)
{
Result = new TextualTable(database, name);
}
public OperationParser(TextualDatabase database, List <Token> tokens)
{
this.database = database;
this.tokens = tokens;
position = 0;
}
