1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import json 6 import os 7 import sys 8 9 _FILE_PATH = os.path.dirname(os.path.realpath(__file__)) 10 _SYS_PATH = sys.path[:] 11 try: 12 _COMMENT_EATER_PATH = os.path.join( 13 _FILE_PATH, os.pardir, 'json_comment_eater') 14 sys.path.insert(0, _COMMENT_EATER_PATH) 15 import json_comment_eater 16 finally: 17 sys.path = _SYS_PATH 18 19 try: 20 from collections import OrderedDict 21 22 # Successfully imported, so we're running Python >= 2.7, and json.loads 23 # supports object_pairs_hook. 24 def Parse(json_str): 25 return json.loads(json_comment_eater.Nom(json_str), 26 object_pairs_hook=OrderedDict) 27 28 except ImportError: 29 # Failed to import, so we're running Python < 2.7, and json.loads doesn't 30 # support object_pairs_hook. simplejson however does, but it's slow. 31 # 32 # TODO(cduvall/kalman): Refuse to start the docs server in this case, but 33 # let json-schema-compiler do its thing. 34 #logging.warning('Using simplejson to parse, this might be slow! Upgrade to ' 35 # 'Python 2.7.') 36 37 _SYS_PATH = sys.path[:] 38 try: 39 _SIMPLE_JSON_PATH = os.path.join(_FILE_PATH, 40 os.pardir, 41 os.pardir, 42 'third_party') 43 sys.path.insert(0, _SIMPLE_JSON_PATH) 44 # Add this path in case this is being used in the docs server. 45 sys.path.insert(0, os.path.join(_FILE_PATH, 46 os.pardir, 47 os.pardir, 48 'third_party', 49 'json_schema_compiler')) 50 import simplejson 51 from simplejson import OrderedDict 52 finally: 53 sys.path = _SYS_PATH 54 55 def Parse(json_str): 56 return simplejson.loads(json_comment_eater.Nom(json_str), 57 object_pairs_hook=OrderedDict) 58 59 60 def IsDict(item): 61 return isinstance(item, (dict, OrderedDict)) 62
