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# coding: utf-8
# partially from package six by Benjamin Peterson
import sys
import os
import io
import traceback
from abc import abstractmethod
import collections.abc
# fmt: off
from typing import Any, Dict, Optional, List, Union, BinaryIO, IO, Text, Tuple # NOQA
from typing import Optional # NOQA
try:
from typing import SupportsIndex as SupportsIndex # in order to reexport for mypy
except ImportError:
SupportsIndex = int # type: ignore
# fmt: on
_DEFAULT_YAML_VERSION = (1, 2)
try:
from collections import OrderedDict
except ImportError:
from ordereddict import OrderedDict # type: ignore
# to get the right name import ... as ordereddict doesn't do that
class ordereddict(OrderedDict): # type: ignore
if not hasattr(OrderedDict, 'insert'):
def insert(self, pos: int, key: Any, value: Any) -> None:
if pos >= len(self):
self[key] = value
return
od = ordereddict()
od.update(self)
for k in od:
del self[k]
for index, old_key in enumerate(od):
if pos == index:
self[key] = value
self[old_key] = od[old_key]
StringIO = io.StringIO
BytesIO = io.BytesIO
# StreamType = Union[BinaryIO, IO[str], IO[unicode], StringIO]
# StreamType = Union[BinaryIO, IO[str], StringIO] # type: ignore
StreamType = Any
StreamTextType = StreamType # Union[Text, StreamType]
VersionType = Union[List[int], str, Tuple[int, int]]
builtins_module = 'builtins'
def with_metaclass(meta: Any, *bases: Any) -> Any:
"""Create a base class with a metaclass."""
return meta('NewBase', bases, {})
DBG_TOKEN = 1
DBG_EVENT = 2
DBG_NODE = 4
_debug: Optional[int] = None
if 'RUAMELDEBUG' in os.environ:
_debugx = os.environ.get('RUAMELDEBUG')
if _debugx is None:
_debug = 0
else:
_debug = int(_debugx)
if bool(_debug):
class ObjectCounter:
def __init__(self) -> None:
self.map: Dict[Any, Any] = {}
def __call__(self, k: Any) -> None:
self.map[k] = self.map.get(k, 0) + 1
def dump(self) -> None:
for k in sorted(self.map):
sys.stdout.write(f'{k} -> {self.map[k]}')
object_counter = ObjectCounter()
# used from yaml util when testing
def dbg(val: Any = None) -> Any:
global _debug
if _debug is None:
# set to true or false
_debugx = os.environ.get('YAMLDEBUG')
if _debugx is None:
_debug = 0
else:
_debug = int(_debugx)
if val is None:
return _debug
return _debug & val
class Nprint:
def __init__(self, file_name: Any = None) -> None:
self._max_print: Any = None
self._count: Any = None
self._file_name = file_name
def __call__(self, *args: Any, **kw: Any) -> None:
if not bool(_debug):
return
out = sys.stdout if self._file_name is None else open(self._file_name, 'a')
dbgprint = print # to fool checking for print statements by dv utility
kw1 = kw.copy()
kw1['file'] = out
dbgprint(*args, **kw1)
out.flush()
if self._max_print is not None:
if self._count is None:
self._count = self._max_print
self._count -= 1
if self._count == 0:
dbgprint('forced exit\n')
traceback.print_stack()
out.flush()
sys.exit(0)
if self._file_name:
out.close()
def set_max_print(self, i: int) -> None:
self._max_print = i
self._count = None
def fp(self, mode: str = 'a') -> Any:
out = sys.stdout if self._file_name is None else open(self._file_name, mode)
return out
nprint = Nprint()
nprintf = Nprint('/var/tmp/ruamel.yaml.log')
# char checkers following production rules
def check_namespace_char(ch: Any) -> bool:
if '\x21' <= ch <= '\x7E': # ! to ~
return True
if '\xA0' <= ch <= '\uD7FF':
return True
if ('\uE000' <= ch <= '\uFFFD') and ch != '\uFEFF': # excl. byte order mark
return True
if '\U00010000' <= ch <= '\U0010FFFF':
return True
return False
def check_anchorname_char(ch: Any) -> bool:
if ch in ',[]{}':
return False
return check_namespace_char(ch)
def version_tnf(t1: Any, t2: Any = None) -> Any:
"""
return True if ruamel.yaml version_info < t1, None if t2 is specified and bigger else False
"""
from ruamel.yaml import version_info # NOQA
if version_info < t1:
return True
if t2 is not None and version_info < t2:
return None
return False
class MutableSliceableSequence(collections.abc.MutableSequence): # type: ignore
__slots__ = ()
def __getitem__(self, index: Any) -> Any:
if not isinstance(index, slice):
return self.__getsingleitem__(index)
return type(self)([self[i] for i in range(*index.indices(len(self)))]) # type: ignore
def __setitem__(self, index: Any, value: Any) -> None:
if not isinstance(index, slice):
return self.__setsingleitem__(index, value)
assert iter(value)
# nprint(index.start, index.stop, index.step, index.indices(len(self)))
if index.step is None:
del self[index.start : index.stop]
for elem in reversed(value):
self.insert(0 if index.start is None else index.start, elem)
else:
range_parms = index.indices(len(self))
nr_assigned_items = (range_parms[1] - range_parms[0] - 1) // range_parms[2] + 1
# need to test before changing, in case TypeError is caught
if nr_assigned_items < len(value):
raise TypeError(
f'too many elements in value {nr_assigned_items} < {len(value)}',
)
elif nr_assigned_items > len(value):
raise TypeError(
f'not enough elements in value {nr_assigned_items} > {len(value)}',
)
for idx, i in enumerate(range(*range_parms)):
self[i] = value[idx]
def __delitem__(self, index: Any) -> None:
if not isinstance(index, slice):
return self.__delsingleitem__(index)
# nprint(index.start, index.stop, index.step, index.indices(len(self)))
for i in reversed(range(*index.indices(len(self)))):
del self[i]
@abstractmethod
def __getsingleitem__(self, index: Any) -> Any:
raise IndexError
@abstractmethod
def __setsingleitem__(self, index: Any, value: Any) -> None:
raise IndexError
@abstractmethod
def __delsingleitem__(self, index: Any) -> None:
raise IndexError
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