Moving mozrunner and simplejson to a toplevel location.

src/third_party/pylib/simplejson/__init__.py

-r"""JSON (JavaScript Object Notation) <http://json.org> is a subset of
-JavaScript syntax (ECMA-262 3rd edition) used as a lightweight data
-interchange format.
-
-:mod:`simplejson` exposes an API familiar to users of the standard library
-:mod:`marshal` and :mod:`pickle` modules. It is the externally maintained
-version of the :mod:`json` library contained in Python 2.6, but maintains
-compatibility with Python 2.4 and Python 2.5 and (currently) has
-significant performance advantages, even without using the optional C
-extension for speedups.
-
-Encoding basic Python object hierarchies::
-
-    >>> import simplejson as json
-    >>> json.dumps(['foo', {'bar': ('baz', None, 1.0, 2)}])
-    '["foo", {"bar": ["baz", null, 1.0, 2]}]'
-    >>> print json.dumps("\"foo\bar")
-    "\"foo\bar"
-    >>> print json.dumps(u'\u1234')
-    "\u1234"
-    >>> print json.dumps('\\')
-    "\\"
-    >>> print json.dumps({"c": 0, "b": 0, "a": 0}, sort_keys=True)
-    {"a": 0, "b": 0, "c": 0}
-    >>> from StringIO import StringIO
-    >>> io = StringIO()
-    >>> json.dump(['streaming API'], io)
-    >>> io.getvalue()
-    '["streaming API"]'
-
-Compact encoding::
-
-    >>> import simplejson as json
-    >>> json.dumps([1,2,3,{'4': 5, '6': 7}], separators=(',',':'))
-    '[1,2,3,{"4":5,"6":7}]'
-
-Pretty printing::
-
-    >>> import simplejson as json
-    >>> s = json.dumps({'4': 5, '6': 7}, sort_keys=True, indent='    ')
-    >>> print '\n'.join([l.rstrip() for l in  s.splitlines()])
-    {
-        "4": 5,
-        "6": 7
-    }
-
-Decoding JSON::
-
-    >>> import simplejson as json
-    >>> obj = [u'foo', {u'bar': [u'baz', None, 1.0, 2]}]
-    >>> json.loads('["foo", {"bar":["baz", null, 1.0, 2]}]') == obj
-    True
-    >>> json.loads('"\\"foo\\bar"') == u'"foo\x08ar'
-    True
-    >>> from StringIO import StringIO
-    >>> io = StringIO('["streaming API"]')
-    >>> json.load(io)[0] == 'streaming API'
-    True
-
-Specializing JSON object decoding::
-
-    >>> import simplejson as json
-    >>> def as_complex(dct):
-    ...     if '__complex__' in dct:
-    ...         return complex(dct['real'], dct['imag'])
-    ...     return dct
-    ...
-    >>> json.loads('{"__complex__": true, "real": 1, "imag": 2}',
-    ...     object_hook=as_complex)
-    (1+2j)
-    >>> from decimal import Decimal
-    >>> json.loads('1.1', parse_float=Decimal) == Decimal('1.1')
-    True
-
-Specializing JSON object encoding::
-
-    >>> import simplejson as json
-    >>> def encode_complex(obj):
-    ...     if isinstance(obj, complex):
-    ...         return [obj.real, obj.imag]
-    ...     raise TypeError(repr(o) + " is not JSON serializable")
-    ...
-    >>> json.dumps(2 + 1j, default=encode_complex)
-    '[2.0, 1.0]'
-    >>> json.JSONEncoder(default=encode_complex).encode(2 + 1j)
-    '[2.0, 1.0]'
-    >>> ''.join(json.JSONEncoder(default=encode_complex).iterencode(2 + 1j))
-    '[2.0, 1.0]'
-
-
-Using simplejson.tool from the shell to validate and pretty-print::
-
-    $ echo '{"json":"obj"}' | python -m simplejson.tool
-    {
-        "json": "obj"
-    }
-    $ echo '{ 1.2:3.4}' | python -m simplejson.tool
-    Expecting property name: line 1 column 2 (char 2)
-"""
-__version__ = '2.1.2'
-__all__ = [
-    'dump', 'dumps', 'load', 'loads',
-    'JSONDecoder', 'JSONDecodeError', 'JSONEncoder',
-    'OrderedDict',
-]
-
-__author__ = 'Bob Ippolito <bob@redivi.com>'
-
-from decimal import Decimal
-
-from decoder import JSONDecoder, JSONDecodeError
-from encoder import JSONEncoder
-def _import_OrderedDict():
-    import collections
-    try:
-        return collections.OrderedDict
-    except AttributeError:
-        import ordered_dict
-        return ordered_dict.OrderedDict
-OrderedDict = _import_OrderedDict()
-
-def _import_c_make_encoder():
-    try:
-        from simplejson._speedups import make_encoder
-        return make_encoder
-    except ImportError:
-        return None
-
-_default_encoder = JSONEncoder(
-    skipkeys=False,
-    ensure_ascii=True,
-    check_circular=True,
-    allow_nan=True,
-    indent=None,
-    separators=None,
-    encoding='utf-8',
-    default=None,
-    use_decimal=False,
-)
-
-def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True,
-        allow_nan=True, cls=None, indent=None, separators=None,
-        encoding='utf-8', default=None, use_decimal=False, **kw):
-    """Serialize ``obj`` as a JSON formatted stream to ``fp`` (a
-    ``.write()``-supporting file-like object).
-
-    If ``skipkeys`` is true then ``dict`` keys that are not basic types
-    (``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``)
-    will be skipped instead of raising a ``TypeError``.
-
-    If ``ensure_ascii`` is false, then the some chunks written to ``fp``
-    may be ``unicode`` instances, subject to normal Python ``str`` to
-    ``unicode`` coercion rules. Unless ``fp.write()`` explicitly
-    understands ``unicode`` (as in ``codecs.getwriter()``) this is likely
-    to cause an error.
-
-    If ``check_circular`` is false, then the circular reference check
-    for container types will be skipped and a circular reference will
-    result in an ``OverflowError`` (or worse).
-
-    If ``allow_nan`` is false, then it will be a ``ValueError`` to
-    serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``)
-    in strict compliance of the JSON specification, instead of using the
-    JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
-
-    If *indent* is a string, then JSON array elements and object members
-    will be pretty-printed with a newline followed by that string repeated
-    for each level of nesting. ``None`` (the default) selects the most compact
-    representation without any newlines. For backwards compatibility with
-    versions of simplejson earlier than 2.1.0, an integer is also accepted
-    and is converted to a string with that many spaces.
-
-    If ``separators`` is an ``(item_separator, dict_separator)`` tuple
-    then it will be used instead of the default ``(', ', ': ')`` separators.
-    ``(',', ':')`` is the most compact JSON representation.
-
-    ``encoding`` is the character encoding for str instances, default is UTF-8.
-
-    ``default(obj)`` is a function that should return a serializable version
-    of obj or raise TypeError. The default simply raises TypeError.
-
-    If *use_decimal* is true (default: ``False``) then decimal.Decimal
-    will be natively serialized to JSON with full precision.
-
-    To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
-    ``.default()`` method to serialize additional types), specify it with
-    the ``cls`` kwarg.
-
-    """
-    # cached encoder
-    if (not skipkeys and ensure_ascii and
-        check_circular and allow_nan and
-        cls is None and indent is None and separators is None and
-        encoding == 'utf-8' and default is None and not kw):
-        iterable = _default_encoder.iterencode(obj)
-    else:
-        if cls is None:
-            cls = JSONEncoder
-        iterable = cls(skipkeys=skipkeys, ensure_ascii=ensure_ascii,
-            check_circular=check_circular, allow_nan=allow_nan, indent=indent,
-            separators=separators, encoding=encoding,
-            default=default, use_decimal=use_decimal, **kw).iterencode(obj)
-    # could accelerate with writelines in some versions of Python, at
-    # a debuggability cost
-    for chunk in iterable:
-        fp.write(chunk)
-
-
-def dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True,
-        allow_nan=True, cls=None, indent=None, separators=None,
-        encoding='utf-8', default=None, use_decimal=False, **kw):
-    """Serialize ``obj`` to a JSON formatted ``str``.
-
-    If ``skipkeys`` is false then ``dict`` keys that are not basic types
-    (``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``)
-    will be skipped instead of raising a ``TypeError``.
-
-    If ``ensure_ascii`` is false, then the return value will be a
-    ``unicode`` instance subject to normal Python ``str`` to ``unicode``
-    coercion rules instead of being escaped to an ASCII ``str``.
-
-    If ``check_circular`` is false, then the circular reference check
-    for container types will be skipped and a circular reference will
-    result in an ``OverflowError`` (or worse).
-
-    If ``allow_nan`` is false, then it will be a ``ValueError`` to
-    serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) in
-    strict compliance of the JSON specification, instead of using the
-    JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
-
-    If ``indent`` is a string, then JSON array elements and object members
-    will be pretty-printed with a newline followed by that string repeated
-    for each level of nesting. ``None`` (the default) selects the most compact
-    representation without any newlines. For backwards compatibility with
-    versions of simplejson earlier than 2.1.0, an integer is also accepted
-    and is converted to a string with that many spaces.
-
-    If ``separators`` is an ``(item_separator, dict_separator)`` tuple
-    then it will be used instead of the default ``(', ', ': ')`` separators.
-    ``(',', ':')`` is the most compact JSON representation.
-
-    ``encoding`` is the character encoding for str instances, default is UTF-8.
-
-    ``default(obj)`` is a function that should return a serializable version
-    of obj or raise TypeError. The default simply raises TypeError.
-
-    If *use_decimal* is true (default: ``False``) then decimal.Decimal
-    will be natively serialized to JSON with full precision.
-
-    To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
-    ``.default()`` method to serialize additional types), specify it with
-    the ``cls`` kwarg.
-
-    """
-    # cached encoder
-    if (not skipkeys and ensure_ascii and
-        check_circular and allow_nan and
-        cls is None and indent is None and separators is None and
-        encoding == 'utf-8' and default is None and not use_decimal
-        and not kw):
-        return _default_encoder.encode(obj)
-    if cls is None:
-        cls = JSONEncoder
-    return cls(
-        skipkeys=skipkeys, ensure_ascii=ensure_ascii,
-        check_circular=check_circular, allow_nan=allow_nan, indent=indent,
-        separators=separators, encoding=encoding, default=default,
-        use_decimal=use_decimal, **kw).encode(obj)
-
-
-_default_decoder = JSONDecoder(encoding=None, object_hook=None,
-                               object_pairs_hook=None)
-
-
-def load(fp, encoding=None, cls=None, object_hook=None, parse_float=None,
-        parse_int=None, parse_constant=None, object_pairs_hook=None,
-        use_decimal=False, **kw):
-    """Deserialize ``fp`` (a ``.read()``-supporting file-like object containing
-    a JSON document) to a Python object.
-
-    *encoding* determines the encoding used to interpret any
-    :class:`str` objects decoded by this instance (``'utf-8'`` by
-    default).  It has no effect when decoding :class:`unicode` objects.
-
-    Note that currently only encodings that are a superset of ASCII work,
-    strings of other encodings should be passed in as :class:`unicode`.
-
-    *object_hook*, if specified, will be called with the result of every
-    JSON object decoded and its return value will be used in place of the
-    given :class:`dict`.  This can be used to provide custom
-    deserializations (e.g. to support JSON-RPC class hinting).
-
-    *object_pairs_hook* is an optional function that will be called with
-    the result of any object literal decode with an ordered list of pairs.
-    The return value of *object_pairs_hook* will be used instead of the
-    :class:`dict`.  This feature can be used to implement custom decoders
-    that rely on the order that the key and value pairs are decoded (for
-    example, :func:`collections.OrderedDict` will remember the order of
-    insertion). If *object_hook* is also defined, the *object_pairs_hook*
-    takes priority.
-
-    *parse_float*, if specified, will be called with the string of every
-    JSON float to be decoded.  By default, this is equivalent to
-    ``float(num_str)``. This can be used to use another datatype or parser
-    for JSON floats (e.g. :class:`decimal.Decimal`).
-
-    *parse_int*, if specified, will be called with the string of every
-    JSON int to be decoded.  By default, this is equivalent to
-    ``int(num_str)``.  This can be used to use another datatype or parser
-    for JSON integers (e.g. :class:`float`).
-
-    *parse_constant*, if specified, will be called with one of the
-    following strings: ``'-Infinity'``, ``'Infinity'``, ``'NaN'``.  This
-    can be used to raise an exception if invalid JSON numbers are
-    encountered.
-
-    If *use_decimal* is true (default: ``False``) then it implies
-    parse_float=decimal.Decimal for parity with ``dump``.
-
-    To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
-    kwarg.
-
-    """
-    return loads(fp.read(),
-        encoding=encoding, cls=cls, object_hook=object_hook,
-        parse_float=parse_float, parse_int=parse_int,
-        parse_constant=parse_constant, object_pairs_hook=object_pairs_hook,
-        use_decimal=use_decimal, **kw)
-
-
-def loads(s, encoding=None, cls=None, object_hook=None, parse_float=None,
-        parse_int=None, parse_constant=None, object_pairs_hook=None,
-        use_decimal=False, **kw):
-    """Deserialize ``s`` (a ``str`` or ``unicode`` instance containing a JSON
-    document) to a Python object.
-
-    *encoding* determines the encoding used to interpret any
-    :class:`str` objects decoded by this instance (``'utf-8'`` by
-    default).  It has no effect when decoding :class:`unicode` objects.
-
-    Note that currently only encodings that are a superset of ASCII work,
-    strings of other encodings should be passed in as :class:`unicode`.
-
-    *object_hook*, if specified, will be called with the result of every
-    JSON object decoded and its return value will be used in place of the
-    given :class:`dict`.  This can be used to provide custom
-    deserializations (e.g. to support JSON-RPC class hinting).
-
-    *object_pairs_hook* is an optional function that will be called with
-    the result of any object literal decode with an ordered list of pairs.
-    The return value of *object_pairs_hook* will be used instead of the
-    :class:`dict`.  This feature can be used to implement custom decoders
-    that rely on the order that the key and value pairs are decoded (for
-    example, :func:`collections.OrderedDict` will remember the order of
-    insertion). If *object_hook* is also defined, the *object_pairs_hook*
-    takes priority.
-
-    *parse_float*, if specified, will be called with the string of every
-    JSON float to be decoded.  By default, this is equivalent to
-    ``float(num_str)``. This can be used to use another datatype or parser
-    for JSON floats (e.g. :class:`decimal.Decimal`).
-
-    *parse_int*, if specified, will be called with the string of every
-    JSON int to be decoded.  By default, this is equivalent to
-    ``int(num_str)``.  This can be used to use another datatype or parser
-    for JSON integers (e.g. :class:`float`).
-
-    *parse_constant*, if specified, will be called with one of the
-    following strings: ``'-Infinity'``, ``'Infinity'``, ``'NaN'``.  This
-    can be used to raise an exception if invalid JSON numbers are
-    encountered.
-
-    If *use_decimal* is true (default: ``False``) then it implies
-    parse_float=decimal.Decimal for parity with ``dump``.
-
-    To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
-    kwarg.
-
-    """
-    if (cls is None and encoding is None and object_hook is None and
-            parse_int is None and parse_float is None and
-            parse_constant is None and object_pairs_hook is None
-            and not use_decimal and not kw):
-        return _default_decoder.decode(s)
-    if cls is None:
-        cls = JSONDecoder
-    if object_hook is not None:
-        kw['object_hook'] = object_hook
-    if object_pairs_hook is not None:
-        kw['object_pairs_hook'] = object_pairs_hook
-    if parse_float is not None:
-        kw['parse_float'] = parse_float
-    if parse_int is not None:
-        kw['parse_int'] = parse_int
-    if parse_constant is not None:
-        kw['parse_constant'] = parse_constant
-    if use_decimal:
-        if parse_float is not None:
-            raise TypeError("use_decimal=True implies parse_float=Decimal")
-        kw['parse_float'] = Decimal
-    return cls(encoding=encoding, **kw).decode(s)
-
-
-def _toggle_speedups(enabled):
-    import simplejson.decoder as dec
-    import simplejson.encoder as enc
-    import simplejson.scanner as scan
-    c_make_encoder = _import_c_make_encoder()
-    if enabled:
-        dec.scanstring = dec.c_scanstring or dec.py_scanstring
-        enc.c_make_encoder = c_make_encoder
-        enc.encode_basestring_ascii = (enc.c_encode_basestring_ascii or 
-            enc.py_encode_basestring_ascii)
-        scan.make_scanner = scan.c_make_scanner or scan.py_make_scanner
-    else:
-        dec.scanstring = dec.py_scanstring
-        enc.c_make_encoder = None
-        enc.encode_basestring_ascii = enc.py_encode_basestring_ascii
-        scan.make_scanner = scan.py_make_scanner
-    dec.make_scanner = scan.make_scanner
-    global _default_decoder
-    _default_decoder = JSONDecoder(
-        encoding=None,
-        object_hook=None,
-        object_pairs_hook=None,
-    )
-    global _default_encoder
-    _default_encoder = JSONEncoder(
-       skipkeys=False,
-       ensure_ascii=True,
-       check_circular=True,
-       allow_nan=True,
-       indent=None,
-       separators=None,
-       encoding='utf-8',
-       default=None,
-   )