1 files changed, 131 insertions, 0 deletions
diff --git a/debug_toolbar/utils/sqlparse/tokens.py b/debug_toolbar/utils/sqlparse/tokens.py
new file mode 100644
index 0000000..2c63c41
--- /dev/null
+++ b/debug_toolbar/utils/sqlparse/tokens.py
@@ -0,0 +1,131 @@
+# Copyright (C) 2008 Andi Albrecht, albrecht.andi@gmail.com
+#
+# This module is part of python-sqlparse and is released under
+# the BSD License: http://www.opensource.org/licenses/bsd-license.php.
+
+# The Token implementation is based on pygment's token system written
+# by Georg Brandl.
+# http://pygments.org/
+
+"""Tokens"""
+
+try:
+    set
+except NameError:
+    from sets import Set as set
+
+
+class _TokenType(tuple):
+    parent = None
+
+    def split(self):
+        buf = []
+        node = self
+        while node is not None:
+            buf.append(node)
+            node = node.parent
+        buf.reverse()
+        return buf
+
+    def __init__(self, *args):
+        # no need to call super.__init__
+        self.subtypes = set()
+
+    def __contains__(self, val):
+        return self is val or (
+            type(val) is self.__class__ and
+            val[:len(self)] == self
+        )
+
+    def __getattr__(self, val):
+        if not val or not val[0].isupper():
+            return tuple.__getattribute__(self, val)
+        new = _TokenType(self + (val,))
+        setattr(self, val, new)
+        self.subtypes.add(new)
+        new.parent = self
+        return new
+
+    def __hash__(self):
+        return hash(tuple(self))
+
+    def __repr__(self):
+        return 'Token' + (self and '.' or '') + '.'.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
+Wildcard    = Token.Wildcard
+Comment     = Token.Comment
+Assignment  = Token.Assignement
+
+# Generic types for non-source code
+Generic     = Token.Generic
+
+# String and some others are not direct childs of Token.
+# alias them:
+Token.Token = Token
+Token.String = String
+Token.Number = Number
+
+# SQL specific tokens
+DML = Keyword.DML
+DDL = Keyword.DDL
+Command = Keyword.Command
+
+Group = Token.Group
+Group.Parenthesis = Token.Group.Parenthesis
+Group.Comment = Token.Group.Comment
+Group.Where = Token.Group.Where
+
+
+def is_token_subtype(ttype, other):
+    """
+    Return True if ``ttype`` is a subtype of ``other``.
+
+    exists for backwards compatibility. use ``ttype in other`` now.
+    """
+    return ttype in other
+
+
+def string_to_tokentype(s):
+    """
+    Convert a string into a token type::
+
+        >>> string_to_token('String.Double')
+        Token.Literal.String.Double
+        >>> string_to_token('Token.Literal.Number')
+        Token.Literal.Number
+        >>> string_to_token('')
+        Token
+
+    Tokens that are already tokens are returned unchanged:
+
+        >>> string_to_token(String)
+        Token.Literal.String
+    """
+    if isinstance(s, _TokenType):
+        return s
+    if not s:
+        return Token
+    node = Token
+    for item in s.split('.'):
+        node = getattr(node, item)
+    return node
+