internal bool EndsWithWordPart()
{
if (_rawSqlBuilder.Length == 0)
{
return(false);
}
var c = _rawSqlBuilder[_rawSqlBuilder.Length - 1];
return(SqlTokenHelper.IsWordPart(c));
}
private bool IsWordStarted(char c)
{
if (c == '+' || c == '-')
{
if (_charPosition + 1 < _stringLength)
{
var next = _sql[_charPosition + 1];
if (char.IsDigit(next))
{
return(true);
}
}
}
return(SqlTokenHelper.IsWordPart(c));
}
private bool IsBlockCommentDirectiveTerminated()
{
if (_charPosition + 1 < _stringLength)
{
var next = _sql[_charPosition + 1];
if (!SqlTokenHelper.IsWordPart(next))
{
return(true);
}
}
else
{
return(true);
}
return(false);
}
private bool IsWordEnded()
{
if (_charPosition + 1 < _stringLength)
{
var next = _sql[_charPosition + 1];
if (!SqlTokenHelper.IsWordPart(next))
{
return(true);
}
}
else
{
return(true);
}
return(false);
}
private void PeekOneChar(char c)
{
if (SqlTokenHelper.IsWhitespace(c))
{
_tokenType = SqlTokenType.WHITESPACE;
}
else if (c == '(')
{
_tokenType = SqlTokenType.OPENED_PARENS;
}
else if (c == ')')
{
_tokenType = SqlTokenType.CLOSED_PARENS;
}
else if (c == ';')
{
_tokenType = SqlTokenType.DELIMITER;
}
else if (c == '\'')
{
_tokenType = SqlTokenType.QUOTE;
var closed = false;
while (HasRemaining())
{
_charPosition++;
var c2 = _sql[_charPosition];
if (c2 == '\'')
{
if (_charPosition + 1 < _stringLength)
{
_charPosition++;
var c3 = _sql[_charPosition];
if (c3 != '\'')
{
_charPosition = _charPosition - 1;
closed = true;
break;
}
}
else
{
closed = true;
}
}
}
if (closed)
{
return;
}
CalcPosition();
throw new SqlParseException(ExceptionMessageId.Esp2101, _sql, LineNumber, Position);
}
else if (IsWordStarted(c))
{
_tokenType = SqlTokenType.WORD;
while (HasRemaining())
{
_charPosition++;
var c2 = _sql[_charPosition];
if (c2 == '\'')
{
var closed = false;
while (HasRemaining())
{
_charPosition++;
var c3 = _sql[_charPosition];
if (c3 == '\'')
{
if (_charPosition + 2 < _stringLength)
{
_charPosition++;
var c4 = _sql[_charPosition + 1];
if (c4 != '\'')
{
_charPosition = _charPosition - 1;
closed = true;
break;
}
}
else
{
closed = true;
}
}
}
if (closed)
{
return;
}
CalcPosition();
throw new SqlParseException(ExceptionMessageId.Esp2101, _sql, LineNumber, Position);
}
if (!SqlTokenHelper.IsWordPart(c2))
{
_charPosition = _charPosition - 1;
return;
}
}
}
else if (c == '\r' || c == '\n')
{
_tokenType = SqlTokenType.EOL;
_currentLineNumber++;
}
else
{
_tokenType = SqlTokenType.OTHER;
}
}
