69 lines
1.6 KiB
Python
69 lines
1.6 KiB
Python
#
|
|
# 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
|