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- #
- # Copyright (C) 2009-2020 the sqlparse authors and contributors
- # <see AUTHORS file>
- #
- # This module is part of python-sqlparse and is released under
- # the BSD License: https://opensource.org/licenses/BSD-3-Clause
- #
- # The Token implementation is based on pygment's token system written
- # by Georg Brandl.
- # http://pygments.org/
- """Tokens"""
- class _TokenType(tuple):
- parent = None
- def __contains__(self, item):
- return item is not None and (self is item or item[:len(self)] == self)
- def __getattr__(self, name):
- new = _TokenType(self + (name,))
- setattr(self, name, new)
- new.parent = self
- return new
- def __repr__(self):
- # self can be False only if its the `root` i.e. Token itself
- return 'Token' + ('.' if self else '') + '.'.join(self)
- Token = _TokenType()
- # Special token types
- Text = Token.Text
- Whitespace = Text.Whitespace
- Newline = Whitespace.Newline
- Error = Token.Error
- # Text that doesn't belong to this lexer (e.g. HTML in PHP)
- Other = Token.Other
- # Common token types for source code
- Keyword = Token.Keyword
- Name = Token.Name
- Literal = Token.Literal
- String = Literal.String
- Number = Literal.Number
- Punctuation = Token.Punctuation
- Operator = Token.Operator
- Comparison = Operator.Comparison
- Wildcard = Token.Wildcard
- Comment = Token.Comment
- Assignment = Token.Assignment
- # Generic types for non-source code
- Generic = Token.Generic
- Command = Generic.Command
- # String and some others are not direct children of Token.
- # alias them:
- Token.Token = Token
- Token.String = String
- Token.Number = Number
- # SQL specific tokens
- DML = Keyword.DML
- DDL = Keyword.DDL
- CTE = Keyword.CTE
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