[gnome-code-assistance] [backends/json] New json backend
- From: Jesse van den Kieboom <jessevdk src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-code-assistance] [backends/json] New json backend
- Date: Fri, 15 Nov 2013 11:09:42 +0000 (UTC)
commit b491edae4253427a1dc10f58a44a0228d91fce69
Author: Jesse van den Kieboom <jessevdk gmail com>
Date: Fri Nov 15 12:08:49 2013 +0100
[backends/json] New json backend
backends/Makefile.am | 4 +
backends/json/Makefile.am | 17 +
backends/json/__init__.py | 59 ++
backends/json/deps.mf | 15 +
backends/json/deps/simplejson/__init__.py | 547 +++++++++++++++++
backends/json/deps/simplejson/compat.py | 43 ++
backends/json/deps/simplejson/decoder.py | 389 ++++++++++++
backends/json/deps/simplejson/encoder.py | 628 ++++++++++++++++++++
backends/json/deps/simplejson/ordered_dict.py | 119 ++++
backends/json/deps/simplejson/scanner.py | 125 ++++
backends/json/json.in | 7 +
backends/json/mkdeps.py | 43 ++
.../json/org.gnome.CodeAssist.v1.json.service.in | 3 +
configure.ac | 48 ++
14 files changed, 2047 insertions(+), 0 deletions(-)
---
diff --git a/backends/Makefile.am b/backends/Makefile.am
index 7fd7626..4d3e881 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -46,4 +46,8 @@ if BACKENDS_CSS_ENABLE
include backends/css/Makefile.am
endif
+if BACKENDS_JSON_ENABLE
+include backends/json/Makefile.am
+endif
+
GITIGNOREDEPS += backends/Makefile.am
diff --git a/backends/json/Makefile.am b/backends/json/Makefile.am
new file mode 100644
index 0000000..9718b1e
--- /dev/null
+++ b/backends/json/Makefile.am
@@ -0,0 +1,17 @@
+jsonbackenddir = $(GCA_PYBACKENDS_DIR)/json
+jsonbackend_PYTHON = \
+ backends/json/__init__.py
+
+jsonbackendexecdir = $(GCA_BACKENDS_EXEC_DIR)
+jsonbackendexec_SCRIPTS = \
+ backends/json/json
+
+jsonbackendservicedir = $(datadir)/dbus-1/services
+jsonbackendservice_DATA = \
+ backends/json/org.gnome.CodeAssist.v1.json.service
+
+EXTRA_DIST += $(jsonbackendservice_DATA)
+
+include backends/json/deps.mf
+
+GITIGNOREDEPS += backends/json/Makefile.am
diff --git a/backends/json/__init__.py b/backends/json/__init__.py
new file mode 100644
index 0000000..0027b68
--- /dev/null
+++ b/backends/json/__init__.py
@@ -0,0 +1,59 @@
+# gnome code assistance json backend
+# Copyright (C) 2013 Jesse van den Kieboom <jessevdk gnome org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+from gnome.codeassistance import transport, types
+
+try:
+ import simplejson as json
+except ImportError:
+ import sys, os
+
+ sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'deps'))
+ import simplejson as json
+ sys.path = sys.path[1:]
+
+class Service(transport.Service):
+ language = 'json'
+
+ def parse(self, doc, options):
+ doc.diagnostics = []
+
+ try:
+ with open(doc.data_path) as f:
+ json.load(f)
+
+ except json.JSONDecodeError as e:
+ start = types.SourceLocation(line=e.lineno, column=e.colno)
+
+ if not e.endlineno is None:
+ end = types.SourceLocation(line=e.endlineno, column=e.endcolno)
+ else:
+ end = None
+
+ severity = types.Diagnostic.Severity.ERROR
+ doc.diagnostics = [types.Diagnostic(severity=severity, locations=[types.SourceRange(start=start,
end=end)], message=e.msg)]
+
+class Document(transport.Document, transport.Diagnostics):
+ pass
+
+def run():
+ transport.Transport(Service, Document).run()
+
+if __name__ == '__main__':
+ run()
+
+# ex:ts=4:et:
diff --git a/backends/json/deps.mf b/backends/json/deps.mf
new file mode 100644
index 0000000..622d51f
--- /dev/null
+++ b/backends/json/deps.mf
@@ -0,0 +1,15 @@
+if PYTHON_SIMPLEJSON
+else
+json_deps_simplejsondir = $(GCA_PYBACKENDS_DIR)/json/deps/simplejson
+json_deps_simplejson_DATA = \
+ backends/json/deps/simplejson/__init__.py \
+ backends/json/deps/simplejson/compat.py \
+ backends/json/deps/simplejson/decoder.py \
+ backends/json/deps/simplejson/encoder.py \
+ backends/json/deps/simplejson/ordered_dict.py \
+ backends/json/deps/simplejson/scanner.py
+
+endif
+
+EXTRA_DIST += \
+ $(json_deps_simplejson_DATA)
diff --git a/backends/json/deps/simplejson/__init__.py b/backends/json/deps/simplejson/__init__.py
new file mode 100644
index 0000000..7fc8153
--- /dev/null
+++ b/backends/json/deps/simplejson/__init__.py
@@ -0,0 +1,547 @@
+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 simplejson.compat import StringIO
+ >>> io = StringIO()
+ >>> json.dump(['streaming API'], io)
+ >>> io.getvalue()
+ '["streaming API"]'
+
+Compact encoding::
+
+ >>> import simplejson as json
+ >>> obj = [1,2,3,{'4': 5, '6': 7}]
+ >>> json.dumps(obj, separators=(',',':'), sort_keys=True)
+ '[1,2,3,{"4":5,"6":7}]'
+
+Pretty printing::
+
+ >>> import simplejson as json
+ >>> print(json.dumps({'4': 5, '6': 7}, sort_keys=True, indent=' '))
+ {
+ "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 simplejson.compat 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 3 (char 2)
+"""
+from __future__ import absolute_import
+__version__ = '3.3.0'
+__all__ = [
+ 'dump', 'dumps', 'load', 'loads',
+ 'JSONDecoder', 'JSONDecodeError', 'JSONEncoder',
+ 'OrderedDict', 'simple_first',
+]
+
+__author__ = 'Bob Ippolito <bob redivi com>'
+
+from decimal import Decimal
+
+from .scanner import JSONDecodeError
+from .decoder import JSONDecoder
+from .encoder import JSONEncoder, JSONEncoderForHTML
+def _import_OrderedDict():
+ import collections
+ try:
+ return collections.OrderedDict
+ except AttributeError:
+ from . import ordered_dict
+ return ordered_dict.OrderedDict
+OrderedDict = _import_OrderedDict()
+
+def _import_c_make_encoder():
+ try:
+ from ._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=True,
+ namedtuple_as_object=True,
+ tuple_as_array=True,
+ bigint_as_string=False,
+ item_sort_key=None,
+ for_json=False,
+ ignore_nan=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=True,
+ namedtuple_as_object=True, tuple_as_array=True,
+ bigint_as_string=False, sort_keys=False, item_sort_key=None,
+ for_json=False, ignore_nan=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 original JSON specification, instead of using
+ the JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``). See
+ *ignore_nan* for ECMA-262 compliant behavior.
+
+ 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 specified, *separators* should be an
+ ``(item_separator, key_separator)`` tuple. The default is ``(', ', ': ')``
+ if *indent* is ``None`` and ``(',', ': ')`` otherwise. To get the most
+ compact JSON representation, you should specify ``(',', ':')`` to eliminate
+ whitespace.
+
+ *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: ``True``) then decimal.Decimal
+ will be natively serialized to JSON with full precision.
+
+ If *namedtuple_as_object* is true (default: ``True``),
+ :class:`tuple` subclasses with ``_asdict()`` methods will be encoded
+ as JSON objects.
+
+ If *tuple_as_array* is true (default: ``True``),
+ :class:`tuple` (and subclasses) will be encoded as JSON arrays.
+
+ If *bigint_as_string* is true (default: ``False``), ints 2**53 and higher
+ or lower than -2**53 will be encoded as strings. This is to avoid the
+ rounding that happens in Javascript otherwise. Note that this is still a
+ lossy operation that will not round-trip correctly and should be used
+ sparingly.
+
+ If specified, *item_sort_key* is a callable used to sort the items in
+ each dictionary. This is useful if you want to sort items other than
+ in alphabetical order by key. This option takes precedence over
+ *sort_keys*.
+
+ If *sort_keys* is true (default: ``False``), the output of dictionaries
+ will be sorted by item.
+
+ If *for_json* is true (default: ``False``), objects with a ``for_json()``
+ method will use the return value of that method for encoding as JSON
+ instead of the object.
+
+ If *ignore_nan* is true (default: ``False``), then out of range
+ :class:`float` values (``nan``, ``inf``, ``-inf``) will be serialized as
+ ``null`` in compliance with the ECMA-262 specification. If true, this will
+ override *allow_nan*.
+
+ To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
+ ``.default()`` method to serialize additional types), specify it with
+ the ``cls`` kwarg. NOTE: You should use *default* or *for_json* instead
+ of subclassing whenever possible.
+
+ """
+ # 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 use_decimal
+ and namedtuple_as_object and tuple_as_array
+ and not bigint_as_string and not item_sort_key
+ and not for_json and not ignore_nan 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,
+ namedtuple_as_object=namedtuple_as_object,
+ tuple_as_array=tuple_as_array,
+ bigint_as_string=bigint_as_string,
+ sort_keys=sort_keys,
+ item_sort_key=item_sort_key,
+ for_json=for_json,
+ ignore_nan=ignore_nan,
+ **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=True,
+ namedtuple_as_object=True, tuple_as_array=True,
+ bigint_as_string=False, sort_keys=False, item_sort_key=None,
+ for_json=False, ignore_nan=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 specified, ``separators`` should be an
+ ``(item_separator, key_separator)`` tuple. The default is ``(', ', ': ')``
+ if *indent* is ``None`` and ``(',', ': ')`` otherwise. To get the most
+ compact JSON representation, you should specify ``(',', ':')`` to eliminate
+ whitespace.
+
+ ``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: ``True``) then decimal.Decimal
+ will be natively serialized to JSON with full precision.
+
+ If *namedtuple_as_object* is true (default: ``True``),
+ :class:`tuple` subclasses with ``_asdict()`` methods will be encoded
+ as JSON objects.
+
+ If *tuple_as_array* is true (default: ``True``),
+ :class:`tuple` (and subclasses) will be encoded as JSON arrays.
+
+ If *bigint_as_string* is true (not the default), ints 2**53 and higher
+ or lower than -2**53 will be encoded as strings. This is to avoid the
+ rounding that happens in Javascript otherwise.
+
+ If specified, *item_sort_key* is a callable used to sort the items in
+ each dictionary. This is useful if you want to sort items other than
+ in alphabetical order by key. This option takes precendence over
+ *sort_keys*.
+
+ If *sort_keys* is true (default: ``False``), the output of dictionaries
+ will be sorted by item.
+
+ If *for_json* is true (default: ``False``), objects with a ``for_json()``
+ method will use the return value of that method for encoding as JSON
+ instead of the object.
+
+ If *ignore_nan* is true (default: ``False``), then out of range
+ :class:`float` values (``nan``, ``inf``, ``-inf``) will be serialized as
+ ``null`` in compliance with the ECMA-262 specification. If true, this will
+ override *allow_nan*.
+
+ To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
+ ``.default()`` method to serialize additional types), specify it with
+ the ``cls`` kwarg. NOTE: You should use *default* instead of subclassing
+ whenever possible.
+
+ """
+ # 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 use_decimal
+ and namedtuple_as_object and tuple_as_array
+ and not bigint_as_string and not sort_keys
+ and not item_sort_key and not for_json
+ and not ignore_nan 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,
+ namedtuple_as_object=namedtuple_as_object,
+ tuple_as_array=tuple_as_array,
+ bigint_as_string=bigint_as_string,
+ sort_keys=sort_keys,
+ item_sort_key=item_sort_key,
+ for_json=for_json,
+ ignore_nan=ignore_nan,
+ **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, namedtuple_as_object=True, tuple_as_array=True,
+ **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. NOTE: You should use *object_hook* or *object_pairs_hook* instead
+ of subclassing whenever possible.
+
+ """
+ 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. NOTE: You should use *object_hook* or *object_pairs_hook* instead
+ of subclassing whenever possible.
+
+ """
+ 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):
+ from . import decoder as dec
+ from . import encoder as enc
+ from . import 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,
+ )
+
+def simple_first(kv):
+ """Helper function to pass to item_sort_key to sort simple
+ elements to the top, then container elements.
+ """
+ return (isinstance(kv[1], (list, dict, tuple)), kv[0])
diff --git a/backends/json/deps/simplejson/compat.py b/backends/json/deps/simplejson/compat.py
new file mode 100644
index 0000000..449e48a
--- /dev/null
+++ b/backends/json/deps/simplejson/compat.py
@@ -0,0 +1,43 @@
+"""Python 3 compatibility shims
+"""
+import sys
+if sys.version_info[0] < 3:
+ PY3 = False
+ def b(s):
+ return s
+ def u(s):
+ return unicode(s, 'unicode_escape')
+ import cStringIO as StringIO
+ StringIO = BytesIO = StringIO.StringIO
+ text_type = unicode
+ binary_type = str
+ string_types = (basestring,)
+ integer_types = (int, long)
+ unichr = unichr
+ reload_module = reload
+ def fromhex(s):
+ return s.decode('hex')
+
+else:
+ PY3 = True
+ from imp import reload as reload_module
+ import codecs
+ def b(s):
+ return codecs.latin_1_encode(s)[0]
+ def u(s):
+ return s
+ import io
+ StringIO = io.StringIO
+ BytesIO = io.BytesIO
+ text_type = str
+ binary_type = bytes
+ string_types = (str,)
+ integer_types = (int,)
+
+ def unichr(s):
+ return u(chr(s))
+
+ def fromhex(s):
+ return bytes.fromhex(s)
+
+long_type = integer_types[-1]
diff --git a/backends/json/deps/simplejson/decoder.py b/backends/json/deps/simplejson/decoder.py
new file mode 100644
index 0000000..5ccb450
--- /dev/null
+++ b/backends/json/deps/simplejson/decoder.py
@@ -0,0 +1,389 @@
+"""Implementation of JSONDecoder
+"""
+from __future__ import absolute_import
+import re
+import sys
+import struct
+from .compat import fromhex, b, u, text_type, binary_type, PY3, unichr
+from .scanner import make_scanner, JSONDecodeError
+
+def _import_c_scanstring():
+ try:
+ from ._speedups import scanstring
+ return scanstring
+ except ImportError:
+ return None
+c_scanstring = _import_c_scanstring()
+
+# NOTE (3.1.0): JSONDecodeError may still be imported from this module for
+# compatibility, but it was never in the __all__
+__all__ = ['JSONDecoder']
+
+FLAGS = re.VERBOSE | re.MULTILINE | re.DOTALL
+
+def _floatconstants():
+ _BYTES = fromhex('7FF80000000000007FF0000000000000')
+ # The struct module in Python 2.4 would get frexp() out of range here
+ # when an endian is specified in the format string. Fixed in Python 2.5+
+ if sys.byteorder != 'big':
+ _BYTES = _BYTES[:8][::-1] + _BYTES[8:][::-1]
+ nan, inf = struct.unpack('dd', _BYTES)
+ return nan, inf, -inf
+
+NaN, PosInf, NegInf = _floatconstants()
+
+_CONSTANTS = {
+ '-Infinity': NegInf,
+ 'Infinity': PosInf,
+ 'NaN': NaN,
+}
+
+STRINGCHUNK = re.compile(r'(.*?)(["\\\x00-\x1f])', FLAGS)
+BACKSLASH = {
+ '"': u('"'), '\\': u('\u005c'), '/': u('/'),
+ 'b': u('\b'), 'f': u('\f'), 'n': u('\n'), 'r': u('\r'), 't': u('\t'),
+}
+
+DEFAULT_ENCODING = "utf-8"
+
+def py_scanstring(s, end, encoding=None, strict=True,
+ _b=BACKSLASH, _m=STRINGCHUNK.match, _join=u('').join,
+ _PY3=PY3, _maxunicode=sys.maxunicode):
+ """Scan the string s for a JSON string. End is the index of the
+ character in s after the quote that started the JSON string.
+ Unescapes all valid JSON string escape sequences and raises ValueError
+ on attempt to decode an invalid string. If strict is False then literal
+ control characters are allowed in the string.
+
+ Returns a tuple of the decoded string and the index of the character in s
+ after the end quote."""
+ if encoding is None:
+ encoding = DEFAULT_ENCODING
+ chunks = []
+ _append = chunks.append
+ begin = end - 1
+ while 1:
+ chunk = _m(s, end)
+ if chunk is None:
+ raise JSONDecodeError(
+ "Unterminated string starting at", s, begin)
+ end = chunk.end()
+ content, terminator = chunk.groups()
+ # Content is contains zero or more unescaped string characters
+ if content:
+ if not _PY3 and not isinstance(content, text_type):
+ content = text_type(content, encoding)
+ _append(content)
+ # Terminator is the end of string, a literal control character,
+ # or a backslash denoting that an escape sequence follows
+ if terminator == '"':
+ break
+ elif terminator != '\\':
+ if strict:
+ msg = "Invalid control character %r at"
+ raise JSONDecodeError(msg, s, end)
+ else:
+ _append(terminator)
+ continue
+ try:
+ esc = s[end]
+ except IndexError:
+ raise JSONDecodeError(
+ "Unterminated string starting at", s, begin)
+ # If not a unicode escape sequence, must be in the lookup table
+ if esc != 'u':
+ try:
+ char = _b[esc]
+ except KeyError:
+ msg = "Invalid \\X escape sequence %r"
+ raise JSONDecodeError(msg, s, end)
+ end += 1
+ else:
+ # Unicode escape sequence
+ msg = "Invalid \\uXXXX escape sequence"
+ esc = s[end + 1:end + 5]
+ escX = esc[1:2]
+ if len(esc) != 4 or escX == 'x' or escX == 'X':
+ raise JSONDecodeError(msg, s, end - 1)
+ try:
+ uni = int(esc, 16)
+ except ValueError:
+ raise JSONDecodeError(msg, s, end - 1)
+ end += 5
+ # Check for surrogate pair on UCS-4 systems
+ # Note that this will join high/low surrogate pairs
+ # but will also pass unpaired surrogates through
+ if (_maxunicode > 65535 and
+ uni & 0xfc00 == 0xd800 and
+ s[end:end + 2] == '\\u'):
+ esc2 = s[end + 2:end + 6]
+ escX = esc2[1:2]
+ if len(esc2) == 4 and not (escX == 'x' or escX == 'X'):
+ try:
+ uni2 = int(esc2, 16)
+ except ValueError:
+ raise JSONDecodeError(msg, s, end)
+ if uni2 & 0xfc00 == 0xdc00:
+ uni = 0x10000 + (((uni - 0xd800) << 10) |
+ (uni2 - 0xdc00))
+ end += 6
+ char = unichr(uni)
+ # Append the unescaped character
+ _append(char)
+ return _join(chunks), end
+
+
+# Use speedup if available
+scanstring = c_scanstring or py_scanstring
+
+WHITESPACE = re.compile(r'[ \t\n\r]*', FLAGS)
+WHITESPACE_STR = ' \t\n\r'
+
+def JSONObject(state, encoding, strict, scan_once, object_hook,
+ object_pairs_hook, memo=None,
+ _w=WHITESPACE.match, _ws=WHITESPACE_STR):
+ (s, end) = state
+ # Backwards compatibility
+ if memo is None:
+ memo = {}
+ memo_get = memo.setdefault
+ pairs = []
+ # Use a slice to prevent IndexError from being raised, the following
+ # check will raise a more specific ValueError if the string is empty
+ nextchar = s[end:end + 1]
+ # Normally we expect nextchar == '"'
+ if nextchar != '"':
+ if nextchar in _ws:
+ end = _w(s, end).end()
+ nextchar = s[end:end + 1]
+ # Trivial empty object
+ if nextchar == '}':
+ if object_pairs_hook is not None:
+ result = object_pairs_hook(pairs)
+ return result, end + 1
+ pairs = {}
+ if object_hook is not None:
+ pairs = object_hook(pairs)
+ return pairs, end + 1
+ elif nextchar != '"':
+ raise JSONDecodeError(
+ "Expecting property name enclosed in double quotes",
+ s, end)
+ end += 1
+ while True:
+ key, end = scanstring(s, end, encoding, strict)
+ key = memo_get(key, key)
+
+ # To skip some function call overhead we optimize the fast paths where
+ # the JSON key separator is ": " or just ":".
+ if s[end:end + 1] != ':':
+ end = _w(s, end).end()
+ if s[end:end + 1] != ':':
+ raise JSONDecodeError("Expecting ':' delimiter", s, end)
+
+ end += 1
+
+ try:
+ if s[end] in _ws:
+ end += 1
+ if s[end] in _ws:
+ end = _w(s, end + 1).end()
+ except IndexError:
+ pass
+
+ value, end = scan_once(s, end)
+ pairs.append((key, value))
+
+ try:
+ nextchar = s[end]
+ if nextchar in _ws:
+ end = _w(s, end + 1).end()
+ nextchar = s[end]
+ except IndexError:
+ nextchar = ''
+ end += 1
+
+ if nextchar == '}':
+ break
+ elif nextchar != ',':
+ raise JSONDecodeError("Expecting ',' delimiter or '}'", s, end - 1)
+
+ try:
+ nextchar = s[end]
+ if nextchar in _ws:
+ end += 1
+ nextchar = s[end]
+ if nextchar in _ws:
+ end = _w(s, end + 1).end()
+ nextchar = s[end]
+ except IndexError:
+ nextchar = ''
+
+ end += 1
+ if nextchar != '"':
+ raise JSONDecodeError(
+ "Expecting property name enclosed in double quotes",
+ s, end - 1)
+
+ if object_pairs_hook is not None:
+ result = object_pairs_hook(pairs)
+ return result, end
+ pairs = dict(pairs)
+ if object_hook is not None:
+ pairs = object_hook(pairs)
+ return pairs, end
+
+def JSONArray(state, scan_once, _w=WHITESPACE.match, _ws=WHITESPACE_STR):
+ (s, end) = state
+ values = []
+ nextchar = s[end:end + 1]
+ if nextchar in _ws:
+ end = _w(s, end + 1).end()
+ nextchar = s[end:end + 1]
+ # Look-ahead for trivial empty array
+ if nextchar == ']':
+ return values, end + 1
+ elif nextchar == '':
+ raise JSONDecodeError("Expecting value or ']'", s, end)
+ _append = values.append
+ while True:
+ value, end = scan_once(s, end)
+ _append(value)
+ nextchar = s[end:end + 1]
+ if nextchar in _ws:
+ end = _w(s, end + 1).end()
+ nextchar = s[end:end + 1]
+ end += 1
+ if nextchar == ']':
+ break
+ elif nextchar != ',':
+ raise JSONDecodeError("Expecting ',' delimiter or ']'", s, end - 1)
+
+ try:
+ if s[end] in _ws:
+ end += 1
+ if s[end] in _ws:
+ end = _w(s, end + 1).end()
+ except IndexError:
+ pass
+
+ return values, end
+
+class JSONDecoder(object):
+ """Simple JSON <http://json.org> decoder
+
+ Performs the following translations in decoding by default:
+
+ +---------------+-------------------+
+ | JSON | Python |
+ +===============+===================+
+ | object | dict |
+ +---------------+-------------------+
+ | array | list |
+ +---------------+-------------------+
+ | string | unicode |
+ +---------------+-------------------+
+ | number (int) | int, long |
+ +---------------+-------------------+
+ | number (real) | float |
+ +---------------+-------------------+
+ | true | True |
+ +---------------+-------------------+
+ | false | False |
+ +---------------+-------------------+
+ | null | None |
+ +---------------+-------------------+
+
+ It also understands ``NaN``, ``Infinity``, and ``-Infinity`` as
+ their corresponding ``float`` values, which is outside the JSON spec.
+
+ """
+
+ def __init__(self, encoding=None, object_hook=None, parse_float=None,
+ parse_int=None, parse_constant=None, strict=True,
+ object_pairs_hook=None):
+ """
+ *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.
+
+ *strict* controls the parser's behavior when it encounters an
+ invalid control character in a string. The default setting of
+ ``True`` means that unescaped control characters are parse errors, if
+ ``False`` then control characters will be allowed in strings.
+
+ """
+ if encoding is None:
+ encoding = DEFAULT_ENCODING
+ self.encoding = encoding
+ self.object_hook = object_hook
+ self.object_pairs_hook = object_pairs_hook
+ self.parse_float = parse_float or float
+ self.parse_int = parse_int or int
+ self.parse_constant = parse_constant or _CONSTANTS.__getitem__
+ self.strict = strict
+ self.parse_object = JSONObject
+ self.parse_array = JSONArray
+ self.parse_string = scanstring
+ self.memo = {}
+ self.scan_once = make_scanner(self)
+
+ def decode(self, s, _w=WHITESPACE.match, _PY3=PY3):
+ """Return the Python representation of ``s`` (a ``str`` or ``unicode``
+ instance containing a JSON document)
+
+ """
+ if _PY3 and isinstance(s, binary_type):
+ s = s.decode(self.encoding)
+ obj, end = self.raw_decode(s)
+ end = _w(s, end).end()
+ if end != len(s):
+ raise JSONDecodeError("Extra data", s, end, len(s))
+ return obj
+
+ def raw_decode(self, s, idx=0, _w=WHITESPACE.match, _PY3=PY3):
+ """Decode a JSON document from ``s`` (a ``str`` or ``unicode``
+ beginning with a JSON document) and return a 2-tuple of the Python
+ representation and the index in ``s`` where the document ended.
+ Optionally, ``idx`` can be used to specify an offset in ``s`` where
+ the JSON document begins.
+
+ This can be used to decode a JSON document from a string that may
+ have extraneous data at the end.
+
+ """
+ if _PY3 and not isinstance(s, text_type):
+ raise TypeError("Input string must be text, not bytes")
+ return self.scan_once(s, idx=_w(s, idx).end())
diff --git a/backends/json/deps/simplejson/encoder.py b/backends/json/deps/simplejson/encoder.py
new file mode 100644
index 0000000..9815ee5
--- /dev/null
+++ b/backends/json/deps/simplejson/encoder.py
@@ -0,0 +1,628 @@
+"""Implementation of JSONEncoder
+"""
+from __future__ import absolute_import
+import re
+from operator import itemgetter
+from decimal import Decimal
+from .compat import u, unichr, binary_type, string_types, integer_types, PY3
+def _import_speedups():
+ try:
+ from . import _speedups
+ return _speedups.encode_basestring_ascii, _speedups.make_encoder
+ except ImportError:
+ return None, None
+c_encode_basestring_ascii, c_make_encoder = _import_speedups()
+
+from simplejson.decoder import PosInf
+
+#ESCAPE = re.compile(ur'[\x00-\x1f\\"\b\f\n\r\t\u2028\u2029]')
+# This is required because u() will mangle the string and ur'' isn't valid
+# python3 syntax
+ESCAPE = re.compile(u'[\\x00-\\x1f\\\\"\\b\\f\\n\\r\\t\u2028\u2029]')
+ESCAPE_ASCII = re.compile(r'([\\"]|[^\ -~])')
+HAS_UTF8 = re.compile(r'[\x80-\xff]')
+ESCAPE_DCT = {
+ '\\': '\\\\',
+ '"': '\\"',
+ '\b': '\\b',
+ '\f': '\\f',
+ '\n': '\\n',
+ '\r': '\\r',
+ '\t': '\\t',
+}
+for i in range(0x20):
+ #ESCAPE_DCT.setdefault(chr(i), '\\u{0:04x}'.format(i))
+ ESCAPE_DCT.setdefault(chr(i), '\\u%04x' % (i,))
+for i in [0x2028, 0x2029]:
+ ESCAPE_DCT.setdefault(unichr(i), '\\u%04x' % (i,))
+
+FLOAT_REPR = repr
+
+def encode_basestring(s, _PY3=PY3, _q=u('"')):
+ """Return a JSON representation of a Python string
+
+ """
+ if _PY3:
+ if isinstance(s, binary_type):
+ s = s.decode('utf-8')
+ else:
+ if isinstance(s, str) and HAS_UTF8.search(s) is not None:
+ s = s.decode('utf-8')
+ def replace(match):
+ return ESCAPE_DCT[match.group(0)]
+ return _q + ESCAPE.sub(replace, s) + _q
+
+
+def py_encode_basestring_ascii(s, _PY3=PY3):
+ """Return an ASCII-only JSON representation of a Python string
+
+ """
+ if _PY3:
+ if isinstance(s, binary_type):
+ s = s.decode('utf-8')
+ else:
+ if isinstance(s, str) and HAS_UTF8.search(s) is not None:
+ s = s.decode('utf-8')
+ def replace(match):
+ s = match.group(0)
+ try:
+ return ESCAPE_DCT[s]
+ except KeyError:
+ n = ord(s)
+ if n < 0x10000:
+ #return '\\u{0:04x}'.format(n)
+ return '\\u%04x' % (n,)
+ else:
+ # surrogate pair
+ n -= 0x10000
+ s1 = 0xd800 | ((n >> 10) & 0x3ff)
+ s2 = 0xdc00 | (n & 0x3ff)
+ #return '\\u{0:04x}\\u{1:04x}'.format(s1, s2)
+ return '\\u%04x\\u%04x' % (s1, s2)
+ return '"' + str(ESCAPE_ASCII.sub(replace, s)) + '"'
+
+
+encode_basestring_ascii = (
+ c_encode_basestring_ascii or py_encode_basestring_ascii)
+
+class JSONEncoder(object):
+ """Extensible JSON <http://json.org> encoder for Python data structures.
+
+ Supports the following objects and types by default:
+
+ +-------------------+---------------+
+ | Python | JSON |
+ +===================+===============+
+ | dict, namedtuple | object |
+ +-------------------+---------------+
+ | list, tuple | array |
+ +-------------------+---------------+
+ | str, unicode | string |
+ +-------------------+---------------+
+ | int, long, float | number |
+ +-------------------+---------------+
+ | True | true |
+ +-------------------+---------------+
+ | False | false |
+ +-------------------+---------------+
+ | None | null |
+ +-------------------+---------------+
+
+ To extend this to recognize other objects, subclass and implement a
+ ``.default()`` method with another method that returns a serializable
+ object for ``o`` if possible, otherwise it should call the superclass
+ implementation (to raise ``TypeError``).
+
+ """
+ item_separator = ', '
+ key_separator = ': '
+ def __init__(self, skipkeys=False, ensure_ascii=True,
+ check_circular=True, allow_nan=True, sort_keys=False,
+ indent=None, separators=None, encoding='utf-8', default=None,
+ use_decimal=True, namedtuple_as_object=True,
+ tuple_as_array=True, bigint_as_string=False,
+ item_sort_key=None, for_json=False, ignore_nan=False):
+ """Constructor for JSONEncoder, with sensible defaults.
+
+ If skipkeys is false, then it is a TypeError to attempt
+ encoding of keys that are not str, int, long, float or None. If
+ skipkeys is True, such items are simply skipped.
+
+ If ensure_ascii is true, the output is guaranteed to be str
+ objects with all incoming unicode characters escaped. If
+ ensure_ascii is false, the output will be unicode object.
+
+ If check_circular is true, then lists, dicts, and custom encoded
+ objects will be checked for circular references during encoding to
+ prevent an infinite recursion (which would cause an OverflowError).
+ Otherwise, no such check takes place.
+
+ If allow_nan is true, then NaN, Infinity, and -Infinity will be
+ encoded as such. This behavior is not JSON specification compliant,
+ but is consistent with most JavaScript based encoders and decoders.
+ Otherwise, it will be a ValueError to encode such floats.
+
+ If sort_keys is true, then the output of dictionaries will be
+ sorted by key; this is useful for regression tests to ensure
+ that JSON serializations can be compared on a day-to-day basis.
+
+ 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 specified, separators should be an (item_separator, key_separator)
+ tuple. The default is (', ', ': ') if *indent* is ``None`` and
+ (',', ': ') otherwise. To get the most compact JSON representation,
+ you should specify (',', ':') to eliminate whitespace.
+
+ If specified, default is a function that gets called for objects
+ that can't otherwise be serialized. It should return a JSON encodable
+ version of the object or raise a ``TypeError``.
+
+ If encoding is not None, then all input strings will be
+ transformed into unicode using that encoding prior to JSON-encoding.
+ The default is UTF-8.
+
+ If use_decimal is true (not the default), ``decimal.Decimal`` will
+ be supported directly by the encoder. For the inverse, decode JSON
+ with ``parse_float=decimal.Decimal``.
+
+ If namedtuple_as_object is true (the default), objects with
+ ``_asdict()`` methods will be encoded as JSON objects.
+
+ If tuple_as_array is true (the default), tuple (and subclasses) will
+ be encoded as JSON arrays.
+
+ If bigint_as_string is true (not the default), ints 2**53 and higher
+ or lower than -2**53 will be encoded as strings. This is to avoid the
+ rounding that happens in Javascript otherwise.
+
+ If specified, item_sort_key is a callable used to sort the items in
+ each dictionary. This is useful if you want to sort items other than
+ in alphabetical order by key.
+
+ If for_json is true (not the default), objects with a ``for_json()``
+ method will use the return value of that method for encoding as JSON
+ instead of the object.
+
+ If *ignore_nan* is true (default: ``False``), then out of range
+ :class:`float` values (``nan``, ``inf``, ``-inf``) will be serialized
+ as ``null`` in compliance with the ECMA-262 specification. If true,
+ this will override *allow_nan*.
+
+ """
+
+ self.skipkeys = skipkeys
+ self.ensure_ascii = ensure_ascii
+ self.check_circular = check_circular
+ self.allow_nan = allow_nan
+ self.sort_keys = sort_keys
+ self.use_decimal = use_decimal
+ self.namedtuple_as_object = namedtuple_as_object
+ self.tuple_as_array = tuple_as_array
+ self.bigint_as_string = bigint_as_string
+ self.item_sort_key = item_sort_key
+ self.for_json = for_json
+ self.ignore_nan = ignore_nan
+ if indent is not None and not isinstance(indent, string_types):
+ indent = indent * ' '
+ self.indent = indent
+ if separators is not None:
+ self.item_separator, self.key_separator = separators
+ elif indent is not None:
+ self.item_separator = ','
+ if default is not None:
+ self.default = default
+ self.encoding = encoding
+
+ def default(self, o):
+ """Implement this method in a subclass such that it returns
+ a serializable object for ``o``, or calls the base implementation
+ (to raise a ``TypeError``).
+
+ For example, to support arbitrary iterators, you could
+ implement default like this::
+
+ def default(self, o):
+ try:
+ iterable = iter(o)
+ except TypeError:
+ pass
+ else:
+ return list(iterable)
+ return JSONEncoder.default(self, o)
+
+ """
+ raise TypeError(repr(o) + " is not JSON serializable")
+
+ def encode(self, o):
+ """Return a JSON string representation of a Python data structure.
+
+ >>> from simplejson import JSONEncoder
+ >>> JSONEncoder().encode({"foo": ["bar", "baz"]})
+ '{"foo": ["bar", "baz"]}'
+
+ """
+ # This is for extremely simple cases and benchmarks.
+ if isinstance(o, binary_type):
+ _encoding = self.encoding
+ if (_encoding is not None and not (_encoding == 'utf-8')):
+ o = o.decode(_encoding)
+ if isinstance(o, string_types):
+ if self.ensure_ascii:
+ return encode_basestring_ascii(o)
+ else:
+ return encode_basestring(o)
+ # This doesn't pass the iterator directly to ''.join() because the
+ # exceptions aren't as detailed. The list call should be roughly
+ # equivalent to the PySequence_Fast that ''.join() would do.
+ chunks = self.iterencode(o, _one_shot=True)
+ if not isinstance(chunks, (list, tuple)):
+ chunks = list(chunks)
+ if self.ensure_ascii:
+ return ''.join(chunks)
+ else:
+ return u''.join(chunks)
+
+ def iterencode(self, o, _one_shot=False):
+ """Encode the given object and yield each string
+ representation as available.
+
+ For example::
+
+ for chunk in JSONEncoder().iterencode(bigobject):
+ mysocket.write(chunk)
+
+ """
+ if self.check_circular:
+ markers = {}
+ else:
+ markers = None
+ if self.ensure_ascii:
+ _encoder = encode_basestring_ascii
+ else:
+ _encoder = encode_basestring
+ if self.encoding != 'utf-8':
+ def _encoder(o, _orig_encoder=_encoder, _encoding=self.encoding):
+ if isinstance(o, binary_type):
+ o = o.decode(_encoding)
+ return _orig_encoder(o)
+
+ def floatstr(o, allow_nan=self.allow_nan, ignore_nan=self.ignore_nan,
+ _repr=FLOAT_REPR, _inf=PosInf, _neginf=-PosInf):
+ # Check for specials. Note that this type of test is processor
+ # and/or platform-specific, so do tests which don't depend on
+ # the internals.
+
+ if o != o:
+ text = 'NaN'
+ elif o == _inf:
+ text = 'Infinity'
+ elif o == _neginf:
+ text = '-Infinity'
+ else:
+ return _repr(o)
+
+ if ignore_nan:
+ text = 'null'
+ elif not allow_nan:
+ raise ValueError(
+ "Out of range float values are not JSON compliant: " +
+ repr(o))
+
+ return text
+
+
+ key_memo = {}
+ if (_one_shot and c_make_encoder is not None
+ and self.indent is None):
+ _iterencode = c_make_encoder(
+ markers, self.default, _encoder, self.indent,
+ self.key_separator, self.item_separator, self.sort_keys,
+ self.skipkeys, self.allow_nan, key_memo, self.use_decimal,
+ self.namedtuple_as_object, self.tuple_as_array,
+ self.bigint_as_string, self.item_sort_key,
+ self.encoding, self.for_json, self.ignore_nan,
+ Decimal)
+ else:
+ _iterencode = _make_iterencode(
+ markers, self.default, _encoder, self.indent, floatstr,
+ self.key_separator, self.item_separator, self.sort_keys,
+ self.skipkeys, _one_shot, self.use_decimal,
+ self.namedtuple_as_object, self.tuple_as_array,
+ self.bigint_as_string, self.item_sort_key,
+ self.encoding, self.for_json,
+ Decimal=Decimal)
+ try:
+ return _iterencode(o, 0)
+ finally:
+ key_memo.clear()
+
+
+class JSONEncoderForHTML(JSONEncoder):
+ """An encoder that produces JSON safe to embed in HTML.
+
+ To embed JSON content in, say, a script tag on a web page, the
+ characters &, < and > should be escaped. They cannot be escaped
+ with the usual entities (e.g. &) because they are not expanded
+ within <script> tags.
+ """
+
+ def encode(self, o):
+ # Override JSONEncoder.encode because it has hacks for
+ # performance that make things more complicated.
+ chunks = self.iterencode(o, True)
+ if self.ensure_ascii:
+ return ''.join(chunks)
+ else:
+ return u''.join(chunks)
+
+ def iterencode(self, o, _one_shot=False):
+ chunks = super(JSONEncoderForHTML, self).iterencode(o, _one_shot)
+ for chunk in chunks:
+ chunk = chunk.replace('&', '\\u0026')
+ chunk = chunk.replace('<', '\\u003c')
+ chunk = chunk.replace('>', '\\u003e')
+ yield chunk
+
+
+def _make_iterencode(markers, _default, _encoder, _indent, _floatstr,
+ _key_separator, _item_separator, _sort_keys, _skipkeys, _one_shot,
+ _use_decimal, _namedtuple_as_object, _tuple_as_array,
+ _bigint_as_string, _item_sort_key, _encoding, _for_json,
+ ## HACK: hand-optimized bytecode; turn globals into locals
+ _PY3=PY3,
+ ValueError=ValueError,
+ string_types=string_types,
+ Decimal=Decimal,
+ dict=dict,
+ float=float,
+ id=id,
+ integer_types=integer_types,
+ isinstance=isinstance,
+ list=list,
+ str=str,
+ tuple=tuple,
+ ):
+ if _item_sort_key and not callable(_item_sort_key):
+ raise TypeError("item_sort_key must be None or callable")
+ elif _sort_keys and not _item_sort_key:
+ _item_sort_key = itemgetter(0)
+
+ def _iterencode_list(lst, _current_indent_level):
+ if not lst:
+ yield '[]'
+ return
+ if markers is not None:
+ markerid = id(lst)
+ if markerid in markers:
+ raise ValueError("Circular reference detected")
+ markers[markerid] = lst
+ buf = '['
+ if _indent is not None:
+ _current_indent_level += 1
+ newline_indent = '\n' + (_indent * _current_indent_level)
+ separator = _item_separator + newline_indent
+ buf += newline_indent
+ else:
+ newline_indent = None
+ separator = _item_separator
+ first = True
+ for value in lst:
+ if first:
+ first = False
+ else:
+ buf = separator
+ if (isinstance(value, string_types) or
+ (_PY3 and isinstance(value, binary_type))):
+ yield buf + _encoder(value)
+ elif value is None:
+ yield buf + 'null'
+ elif value is True:
+ yield buf + 'true'
+ elif value is False:
+ yield buf + 'false'
+ elif isinstance(value, integer_types):
+ yield ((buf + str(value))
+ if (not _bigint_as_string or
+ (-1 << 53) < value < (1 << 53))
+ else (buf + '"' + str(value) + '"'))
+ elif isinstance(value, float):
+ yield buf + _floatstr(value)
+ elif _use_decimal and isinstance(value, Decimal):
+ yield buf + str(value)
+ else:
+ yield buf
+ for_json = _for_json and getattr(value, 'for_json', None)
+ if for_json and callable(for_json):
+ chunks = _iterencode(for_json(), _current_indent_level)
+ elif isinstance(value, list):
+ chunks = _iterencode_list(value, _current_indent_level)
+ else:
+ _asdict = _namedtuple_as_object and getattr(value, '_asdict', None)
+ if _asdict and callable(_asdict):
+ chunks = _iterencode_dict(_asdict(),
+ _current_indent_level)
+ elif _tuple_as_array and isinstance(value, tuple):
+ chunks = _iterencode_list(value, _current_indent_level)
+ elif isinstance(value, dict):
+ chunks = _iterencode_dict(value, _current_indent_level)
+ else:
+ chunks = _iterencode(value, _current_indent_level)
+ for chunk in chunks:
+ yield chunk
+ if newline_indent is not None:
+ _current_indent_level -= 1
+ yield '\n' + (_indent * _current_indent_level)
+ yield ']'
+ if markers is not None:
+ del markers[markerid]
+
+ def _stringify_key(key):
+ if isinstance(key, string_types): # pragma: no cover
+ pass
+ elif isinstance(key, binary_type):
+ key = key.decode(_encoding)
+ elif isinstance(key, float):
+ key = _floatstr(key)
+ elif key is True:
+ key = 'true'
+ elif key is False:
+ key = 'false'
+ elif key is None:
+ key = 'null'
+ elif isinstance(key, integer_types):
+ key = str(key)
+ elif _use_decimal and isinstance(key, Decimal):
+ key = str(key)
+ elif _skipkeys:
+ key = None
+ else:
+ raise TypeError("key " + repr(key) + " is not a string")
+ return key
+
+ def _iterencode_dict(dct, _current_indent_level):
+ if not dct:
+ yield '{}'
+ return
+ if markers is not None:
+ markerid = id(dct)
+ if markerid in markers:
+ raise ValueError("Circular reference detected")
+ markers[markerid] = dct
+ yield '{'
+ if _indent is not None:
+ _current_indent_level += 1
+ newline_indent = '\n' + (_indent * _current_indent_level)
+ item_separator = _item_separator + newline_indent
+ yield newline_indent
+ else:
+ newline_indent = None
+ item_separator = _item_separator
+ first = True
+ if _PY3:
+ iteritems = dct.items()
+ else:
+ iteritems = dct.iteritems()
+ if _item_sort_key:
+ items = []
+ for k, v in dct.items():
+ if not isinstance(k, string_types):
+ k = _stringify_key(k)
+ if k is None:
+ continue
+ items.append((k, v))
+ items.sort(key=_item_sort_key)
+ else:
+ items = iteritems
+ for key, value in items:
+ if not (_item_sort_key or isinstance(key, string_types)):
+ key = _stringify_key(key)
+ if key is None:
+ # _skipkeys must be True
+ continue
+ if first:
+ first = False
+ else:
+ yield item_separator
+ yield _encoder(key)
+ yield _key_separator
+ if (isinstance(value, string_types) or
+ (_PY3 and isinstance(value, binary_type))):
+ yield _encoder(value)
+ elif value is None:
+ yield 'null'
+ elif value is True:
+ yield 'true'
+ elif value is False:
+ yield 'false'
+ elif isinstance(value, integer_types):
+ yield (str(value)
+ if (not _bigint_as_string or
+ (-1 << 53) < value < (1 << 53))
+ else ('"' + str(value) + '"'))
+ elif isinstance(value, float):
+ yield _floatstr(value)
+ elif _use_decimal and isinstance(value, Decimal):
+ yield str(value)
+ else:
+ for_json = _for_json and getattr(value, 'for_json', None)
+ if for_json and callable(for_json):
+ chunks = _iterencode(for_json(), _current_indent_level)
+ elif isinstance(value, list):
+ chunks = _iterencode_list(value, _current_indent_level)
+ else:
+ _asdict = _namedtuple_as_object and getattr(value, '_asdict', None)
+ if _asdict and callable(_asdict):
+ chunks = _iterencode_dict(_asdict(),
+ _current_indent_level)
+ elif _tuple_as_array and isinstance(value, tuple):
+ chunks = _iterencode_list(value, _current_indent_level)
+ elif isinstance(value, dict):
+ chunks = _iterencode_dict(value, _current_indent_level)
+ else:
+ chunks = _iterencode(value, _current_indent_level)
+ for chunk in chunks:
+ yield chunk
+ if newline_indent is not None:
+ _current_indent_level -= 1
+ yield '\n' + (_indent * _current_indent_level)
+ yield '}'
+ if markers is not None:
+ del markers[markerid]
+
+ def _iterencode(o, _current_indent_level):
+ if (isinstance(o, string_types) or
+ (_PY3 and isinstance(o, binary_type))):
+ yield _encoder(o)
+ elif o is None:
+ yield 'null'
+ elif o is True:
+ yield 'true'
+ elif o is False:
+ yield 'false'
+ elif isinstance(o, integer_types):
+ yield (str(o)
+ if (not _bigint_as_string or
+ (-1 << 53) < o < (1 << 53))
+ else ('"' + str(o) + '"'))
+ elif isinstance(o, float):
+ yield _floatstr(o)
+ else:
+ for_json = _for_json and getattr(o, 'for_json', None)
+ if for_json and callable(for_json):
+ for chunk in _iterencode(for_json(), _current_indent_level):
+ yield chunk
+ elif isinstance(o, list):
+ for chunk in _iterencode_list(o, _current_indent_level):
+ yield chunk
+ else:
+ _asdict = _namedtuple_as_object and getattr(o, '_asdict', None)
+ if _asdict and callable(_asdict):
+ for chunk in _iterencode_dict(_asdict(),
+ _current_indent_level):
+ yield chunk
+ elif (_tuple_as_array and isinstance(o, tuple)):
+ for chunk in _iterencode_list(o, _current_indent_level):
+ yield chunk
+ elif isinstance(o, dict):
+ for chunk in _iterencode_dict(o, _current_indent_level):
+ yield chunk
+ elif _use_decimal and isinstance(o, Decimal):
+ yield str(o)
+ else:
+ if markers is not None:
+ markerid = id(o)
+ if markerid in markers:
+ raise ValueError("Circular reference detected")
+ markers[markerid] = o
+ o = _default(o)
+ for chunk in _iterencode(o, _current_indent_level):
+ yield chunk
+ if markers is not None:
+ del markers[markerid]
+
+ return _iterencode
diff --git a/backends/json/deps/simplejson/ordered_dict.py b/backends/json/deps/simplejson/ordered_dict.py
new file mode 100644
index 0000000..87ad888
--- /dev/null
+++ b/backends/json/deps/simplejson/ordered_dict.py
@@ -0,0 +1,119 @@
+"""Drop-in replacement for collections.OrderedDict by Raymond Hettinger
+
+http://code.activestate.com/recipes/576693/
+
+"""
+from UserDict import DictMixin
+
+# Modified from original to support Python 2.4, see
+# http://code.google.com/p/simplejson/issues/detail?id=53
+try:
+ all
+except NameError:
+ def all(seq):
+ for elem in seq:
+ if not elem:
+ return False
+ return True
+
+class OrderedDict(dict, DictMixin):
+
+ def __init__(self, *args, **kwds):
+ if len(args) > 1:
+ raise TypeError('expected at most 1 arguments, got %d' % len(args))
+ try:
+ self.__end
+ except AttributeError:
+ self.clear()
+ self.update(*args, **kwds)
+
+ def clear(self):
+ self.__end = end = []
+ end += [None, end, end] # sentinel node for doubly linked list
+ self.__map = {} # key --> [key, prev, next]
+ dict.clear(self)
+
+ def __setitem__(self, key, value):
+ if key not in self:
+ end = self.__end
+ curr = end[1]
+ curr[2] = end[1] = self.__map[key] = [key, curr, end]
+ dict.__setitem__(self, key, value)
+
+ def __delitem__(self, key):
+ dict.__delitem__(self, key)
+ key, prev, next = self.__map.pop(key)
+ prev[2] = next
+ next[1] = prev
+
+ def __iter__(self):
+ end = self.__end
+ curr = end[2]
+ while curr is not end:
+ yield curr[0]
+ curr = curr[2]
+
+ def __reversed__(self):
+ end = self.__end
+ curr = end[1]
+ while curr is not end:
+ yield curr[0]
+ curr = curr[1]
+
+ def popitem(self, last=True):
+ if not self:
+ raise KeyError('dictionary is empty')
+ # Modified from original to support Python 2.4, see
+ # http://code.google.com/p/simplejson/issues/detail?id=53
+ if last:
+ key = reversed(self).next()
+ else:
+ key = iter(self).next()
+ value = self.pop(key)
+ return key, value
+
+ def __reduce__(self):
+ items = [[k, self[k]] for k in self]
+ tmp = self.__map, self.__end
+ del self.__map, self.__end
+ inst_dict = vars(self).copy()
+ self.__map, self.__end = tmp
+ if inst_dict:
+ return (self.__class__, (items,), inst_dict)
+ return self.__class__, (items,)
+
+ def keys(self):
+ return list(self)
+
+ setdefault = DictMixin.setdefault
+ update = DictMixin.update
+ pop = DictMixin.pop
+ values = DictMixin.values
+ items = DictMixin.items
+ iterkeys = DictMixin.iterkeys
+ itervalues = DictMixin.itervalues
+ iteritems = DictMixin.iteritems
+
+ def __repr__(self):
+ if not self:
+ return '%s()' % (self.__class__.__name__,)
+ return '%s(%r)' % (self.__class__.__name__, self.items())
+
+ def copy(self):
+ return self.__class__(self)
+
+ @classmethod
+ def fromkeys(cls, iterable, value=None):
+ d = cls()
+ for key in iterable:
+ d[key] = value
+ return d
+
+ def __eq__(self, other):
+ if isinstance(other, OrderedDict):
+ return len(self)==len(other) and \
+ all(p==q for p, q in zip(self.items(), other.items()))
+ return dict.__eq__(self, other)
+
+ def __ne__(self, other):
+ return not self == other
diff --git a/backends/json/deps/simplejson/scanner.py b/backends/json/deps/simplejson/scanner.py
new file mode 100644
index 0000000..6a0099f
--- /dev/null
+++ b/backends/json/deps/simplejson/scanner.py
@@ -0,0 +1,125 @@
+"""JSON token scanner
+"""
+import re
+def _import_c_make_scanner():
+ try:
+ from simplejson._speedups import make_scanner
+ return make_scanner
+ except ImportError:
+ return None
+c_make_scanner = _import_c_make_scanner()
+
+__all__ = ['make_scanner', 'JSONDecodeError']
+
+NUMBER_RE = re.compile(
+ r'(-?(?:0|[1-9]\d*))(\.\d+)?([eE][-+]?\d+)?',
+ (re.VERBOSE | re.MULTILINE | re.DOTALL))
+
+class JSONDecodeError(ValueError):
+ """Subclass of ValueError with the following additional properties:
+
+ msg: The unformatted error message
+ doc: The JSON document being parsed
+ pos: The start index of doc where parsing failed
+ end: The end index of doc where parsing failed (may be None)
+ lineno: The line corresponding to pos
+ colno: The column corresponding to pos
+ endlineno: The line corresponding to end (may be None)
+ endcolno: The column corresponding to end (may be None)
+
+ """
+ # Note that this exception is used from _speedups
+ def __init__(self, msg, doc, pos, end=None):
+ ValueError.__init__(self, errmsg(msg, doc, pos, end=end))
+ self.msg = msg
+ self.doc = doc
+ self.pos = pos
+ self.end = end
+ self.lineno, self.colno = linecol(doc, pos)
+ if end is not None:
+ self.endlineno, self.endcolno = linecol(doc, end)
+ else:
+ self.endlineno, self.endcolno = None, None
+
+
+def linecol(doc, pos):
+ lineno = doc.count('\n', 0, pos) + 1
+ if lineno == 1:
+ colno = pos + 1
+ else:
+ colno = pos - doc.rindex('\n', 0, pos)
+ return lineno, colno
+
+
+def errmsg(msg, doc, pos, end=None):
+ lineno, colno = linecol(doc, pos)
+ msg = msg.replace('%r', repr(doc[pos:pos + 1]))
+ if end is None:
+ fmt = '%s: line %d column %d (char %d)'
+ return fmt % (msg, lineno, colno, pos)
+ endlineno, endcolno = linecol(doc, end)
+ fmt = '%s: line %d column %d - line %d column %d (char %d - %d)'
+ return fmt % (msg, lineno, colno, endlineno, endcolno, pos, end)
+
+
+def py_make_scanner(context):
+ parse_object = context.parse_object
+ parse_array = context.parse_array
+ parse_string = context.parse_string
+ match_number = NUMBER_RE.match
+ encoding = context.encoding
+ strict = context.strict
+ parse_float = context.parse_float
+ parse_int = context.parse_int
+ parse_constant = context.parse_constant
+ object_hook = context.object_hook
+ object_pairs_hook = context.object_pairs_hook
+ memo = context.memo
+
+ def _scan_once(string, idx):
+ errmsg = 'Expecting value'
+ try:
+ nextchar = string[idx]
+ except IndexError:
+ raise JSONDecodeError(errmsg, string, idx)
+
+ if nextchar == '"':
+ return parse_string(string, idx + 1, encoding, strict)
+ elif nextchar == '{':
+ return parse_object((string, idx + 1), encoding, strict,
+ _scan_once, object_hook, object_pairs_hook, memo)
+ elif nextchar == '[':
+ return parse_array((string, idx + 1), _scan_once)
+ elif nextchar == 'n' and string[idx:idx + 4] == 'null':
+ return None, idx + 4
+ elif nextchar == 't' and string[idx:idx + 4] == 'true':
+ return True, idx + 4
+ elif nextchar == 'f' and string[idx:idx + 5] == 'false':
+ return False, idx + 5
+
+ m = match_number(string, idx)
+ if m is not None:
+ integer, frac, exp = m.groups()
+ if frac or exp:
+ res = parse_float(integer + (frac or '') + (exp or ''))
+ else:
+ res = parse_int(integer)
+ return res, m.end()
+ elif nextchar == 'N' and string[idx:idx + 3] == 'NaN':
+ return parse_constant('NaN'), idx + 3
+ elif nextchar == 'I' and string[idx:idx + 8] == 'Infinity':
+ return parse_constant('Infinity'), idx + 8
+ elif nextchar == '-' and string[idx:idx + 9] == '-Infinity':
+ return parse_constant('-Infinity'), idx + 9
+ else:
+ raise JSONDecodeError(errmsg, string, idx)
+
+ def scan_once(string, idx):
+ try:
+ return _scan_once(string, idx)
+ finally:
+ memo.clear()
+
+ return scan_once
+
+make_scanner = c_make_scanner or py_make_scanner
diff --git a/backends/json/json.in b/backends/json/json.in
new file mode 100644
index 0000000..b83c0c1
--- /dev/null
+++ b/backends/json/json.in
@@ -0,0 +1,7 @@
+#!/usr/bin/env python PYTHON_VERSION_MAJOR@
+
+import sys
+sys.path.insert(0, '@GCA_PYBACKENDS_ROOT_EX@')
+
+from gnome.codeassistance import json
+json.run()
diff --git a/backends/json/mkdeps.py b/backends/json/mkdeps.py
new file mode 100644
index 0000000..d39fbf5
--- /dev/null
+++ b/backends/json/mkdeps.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+
+import subprocess, os, re
+
+perdir = {}
+
+rethead = subprocess.check_output(['git', 'ls-tree', 'HEAD', '--name-only', '-r', '--',
'deps']).decode('utf-8').splitlines()
+retindex = subprocess.check_output(['git', 'ls-files', '--', 'deps']).decode('utf-8').splitlines()
+
+ret = rethead + retindex
+seen = {}
+
+for r in ret:
+ if r in seen:
+ continue
+
+ seen[r] = True
+ dname = os.path.dirname(r)
+
+ if dname in perdir:
+ perdir[dname].append(r)
+ else:
+ perdir[dname] = [r]
+
+datas = []
+
+print('if PYTHON_SIMPLEJSON')
+print('else')
+
+for dname in perdir:
+ vname = 'json_{0}'.format(re.sub('[/.-]', '_', dname))
+
+ print('{0}dir = $(GCA_PYBACKENDS_DIR)/json/{1}'.format(vname, dname))
+ print('{0}_DATA = \\'.format(vname))
+ print("\tbackends/json/{0}".format(" \\\n\tbackends/json/".join(perdir[dname])))
+ print('')
+
+ datas.append('$({0}_DATA)'.format(vname))
+
+print('endif\n')
+print('EXTRA_DIST += \\\n\t{0}'.format(' \\\n\t'.join(datas)))
+
+# vi:ts=4:et
diff --git a/backends/json/org.gnome.CodeAssist.v1.json.service.in
b/backends/json/org.gnome.CodeAssist.v1.json.service.in
new file mode 100644
index 0000000..0cef71e
--- /dev/null
+++ b/backends/json/org.gnome.CodeAssist.v1.json.service.in
@@ -0,0 +1,3 @@
+[D-BUS Service]
+Name=org.gnome.CodeAssist.v1.json
+Exec= backendexecdir@/json --transport dbus
diff --git a/configure.ac b/configure.ac
index c567593..29287db 100644
--- a/configure.ac
+++ b/configure.ac
@@ -276,6 +276,51 @@ color_enable_var("$enable_css", [enable_css_msg])
AM_CONDITIONAL(BACKENDS_CSS_ENABLE, test "x$enable_css" = "xyes")
AM_CONDITIONAL(RUBY_SASS, test "x$ruby_sass" = "xyes")
+
+
+dnl ================================================================
+dnl json backend configuration
+dnl ================================================================
+AC_ARG_ENABLE([json],
+ AS_HELP_STRING([--enable-json],[enable json backend]),
+ [enable_json=$enableval],
+ [enable_json=auto])
+
+AC_MSG_CHECKING([json backend])
+
+if test "x$enable_json" = "xauto"; then
+ if test "x$PYTHON" = "x"; then
+ AC_MSG_RESULT([no (requires python)])
+ enable_json=no
+ else
+ AC_MSG_RESULT([yes])
+ enable_json=yes
+ fi
+elif test "x$enable_json" != "xno"; then
+ if test "x$PYTHON" = "x"; then
+ AC_MSG_ERROR([no (requires python)])
+ else
+ AC_MSG_RESULT([yes])
+ enable_json=yes
+ fi
+else
+ AC_MSG_RESULT([no])
+fi
+
+python_simplejson=
+
+if test "x$enable_json" = "xyes"; then
+ $PYTHON -c 'import simplejson' 2>/dev/null
+ if test $? -eq 0 ; then
+ python_simplejson=yes
+ fi
+fi
+
+color_enable_var("$enable_json", [enable_json_msg])
+
+AM_CONDITIONAL(BACKENDS_JSON_ENABLE, test "x$enable_json" = "xyes")
+AM_CONDITIONAL(PYTHON_SIMPLEJSON, test "x$python_simplejson" = "xyes")
+
dnl ================================================================
dnl js support
dnl ================================================================
@@ -548,6 +593,8 @@ backends/sh/org.gnome.CodeAssist.v1.sh.service
backends/sh/sh
backends/css/org.gnome.CodeAssist.v1.css.service
backends/css/css
+backends/json/org.gnome.CodeAssist.v1.json.service
+backends/json/json
data/org.gnome.codeassistance.gschema.xml
tests/dbus.conf
])
@@ -573,5 +620,6 @@ Configuration:
javascript: $enable_js_msg
shell: $enable_sh_msg
css: $enable_css_msg
+ json: $enable_json_msg
"
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