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unic.py
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103 lines (85 loc) · 3.19 KB
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# Copyright 2008-2015 Nokia Networks
# Copyright 2016- Robot Framework Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
from pprint import PrettyPrinter
from unicodedata import normalize
from .platform import PY2, PY3
from .robottypes import is_bytes, is_unicode, unicode
def unic(item):
item = _unic(item)
try:
return normalize('NFC', item)
except ValueError:
# https://github.com/IronLanguages/ironpython2/issues/628
return item
if PY2:
def _unic(item):
if isinstance(item, unicode):
return item
if isinstance(item, (bytes, bytearray)):
try:
return item.decode('ASCII')
except UnicodeError:
return u''.join(chr(b) if b < 128 else '\\x%x' % b
for b in bytearray(item))
try:
try:
return unicode(item)
except UnicodeError:
return unic(str(item))
except:
return _unrepresentable_object(item)
else:
def _unic(item):
if isinstance(item, str):
return item
if isinstance(item, (bytes, bytearray)):
try:
return item.decode('ASCII')
except UnicodeError:
return ''.join(chr(b) if b < 128 else '\\x%x' % b
for b in item)
try:
return str(item)
except:
return _unrepresentable_object(item)
def prepr(item, width=80):
return unic(PrettyRepr(width=width).pformat(item))
class PrettyRepr(PrettyPrinter):
def format(self, object, context, maxlevels, level):
try:
if is_unicode(object):
return repr(object).lstrip('u'), True, False
if is_bytes(object):
return 'b' + repr(object).lstrip('b'), True, False
return PrettyPrinter.format(self, object, context, maxlevels, level)
except:
return _unrepresentable_object(object), True, False
if PY3:
# Don't split strings: https://stackoverflow.com/questions/31485402
def _format(self, object, *args, **kwargs):
if isinstance(object, (str, bytes, bytearray)):
width = self._width
self._width = sys.maxsize
try:
super()._format(object, *args, **kwargs)
finally:
self._width = width
else:
super()._format(object, *args, **kwargs)
def _unrepresentable_object(item):
from .error import get_error_message
return u"<Unrepresentable object %s. Error: %s>" \
% (item.__class__.__name__, get_error_message())