def patch_json_decoder():
"""
Apply patches to json.decoder module.
Used in Python 2.6.
"""
import json.decoder
from json.scanner import pattern, Scanner
constants = json.decoder._CONSTANTS
constants['nan'] = constants['NaN']
constants['inf'] = constants['Infinity']
constants['-inf'] = constants['-Infinity']
JSONConstant = json.decoder.JSONConstant
pattern('(-?inf|nan|-?Infinity|NaN|true|false|null)')(JSONConstant)
json.decoder.JSONScanner = Scanner(json.decoder.ANYTHING)
def patch_json_decoder():
"""
Apply patches to json.decoder module.
Used in Python 2.6.
"""
import json.decoder
from json.scanner import pattern, Scanner
constants = json.decoder._CONSTANTS
constants['nan'] = constants['NaN']
constants['inf'] = constants['Infinity']
constants['-inf'] = constants['-Infinity']
JSONConstant = json.decoder.JSONConstant
pattern('(-?inf|nan|-?Infinity|NaN|true|false|null)')(JSONConstant)
json.decoder.JSONScanner = Scanner(json.decoder.ANYTHING)
'NaN': NaN,
'true': True,
'false': False,
'null': None,
}
def JSONConstant(match, context, c=_CONSTANTS):
s = match.group(0)
fn = getattr(context, 'parse_constant', None)
if fn is None:
rval = c[s]
else:
rval = fn(s)
return rval, None
pattern('(-?Infinity|NaN|true|false|null)')(JSONConstant)
def JSONNumber(match, context):
match = JSONNumber.regex.match(match.string, *match.span())
integer, frac, exp = match.groups()
if frac or exp:
fn = getattr(context, 'parse_float', None) or float
res = fn(integer + (frac or '') + (exp or ''))
else:
fn = getattr(context, 'parse_int', None) or int
res = fn(integer)
return res, None
pattern(r'(-?(?:0|[1-9]\d*))(\.\d+)?([eE][-+]?\d+)?')(JSONNumber)
'NaN': NaN,
'true': True,
'false': False,
'null': None,
}
def JSONConstant(match, context, c=_CONSTANTS):
s = match.group(0)
fn = getattr(context, 'parse_constant', None)
if fn is None:
rval = c[s]
else:
rval = fn(s)
return rval, None
pattern('(-?Infinity|NaN|true|false|null)')(JSONConstant)
def JSONNumber(match, context):
match = JSONNumber.regex.match(match.string, *match.span())
integer, frac, exp = match.groups()
if frac or exp:
fn = getattr(context, 'parse_float', None) or float
res = fn(integer + (frac or '') + (exp or ''))
else:
fn = getattr(context, 'parse_int', None) or int
res = fn(integer)
return res, None
pattern(r'(-?(?:0|[1-9]\d*))(\.\d+)?([eE][-+]?\d+)?')(JSONNumber)
end = _w(s, end + 1).end()
try:
value, end = iterscan(s, idx=end, context=context).next()
except StopIteration:
raise ValueError(decoder.errmsg("Expecting object", s, end))
pairs[key] = value
end = _w(s, end).end()
nextchar = s[end:end + 1]
end += 1
if nextchar == '}':
break
if nextchar != ',':
raise ValueError(decoder.errmsg("Expecting , delimiter", s, end - 1))
end = _w(s, end).end()
nextchar = s[end:end + 1]
end += 1
if nextchar != '"':
raise ValueError(decoder.errmsg("Expecting property name", s, end - 1))
object_hook = getattr(context, 'object_hook', None)
if object_hook is not None:
pairs = object_hook(pairs)
return pairs, end
scanner.pattern(r'{')(JSONObject);
ANYTHING = list(decoder.ANYTHING);
ANYTHING[0] = JSONObject;
JSONScanner = scanner.Scanner(ANYTHING);
class AbstractJSONDecoderOrderedDict(decoder.JSONDecoder):
_scanner = JSONScanner;