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|
# coding: utf-8
import warnings
import textwrap
from typing import Any, Dict, Optional, List, Text # NOQA
__all__ = [
'FileMark',
'StringMark',
'CommentMark',
'YAMLError',
'MarkedYAMLError',
'ReusedAnchorWarning',
'UnsafeLoaderWarning',
'MarkedYAMLWarning',
'MarkedYAMLFutureWarning',
]
class StreamMark:
__slots__ = 'name', 'index', 'line', 'column'
def __init__(self, name: Any, index: int, line: int, column: int) -> None:
self.name = name
self.index = index
self.line = line
self.column = column
def __str__(self) -> Any:
where = f' in "{self.name!s}", line {self.line + 1:d}, column {self.column + 1:d}'
return where
def __eq__(self, other: Any) -> bool:
if self.line != other.line or self.column != other.column:
return False
if self.name != other.name or self.index != other.index:
return False
return True
def __ne__(self, other: Any) -> bool:
return not self.__eq__(other)
class FileMark(StreamMark):
__slots__ = ()
class StringMark(StreamMark):
__slots__ = 'name', 'index', 'line', 'column', 'buffer', 'pointer'
def __init__(
self, name: Any, index: int, line: int, column: int, buffer: Any, pointer: Any,
) -> None:
StreamMark.__init__(self, name, index, line, column)
self.buffer = buffer
self.pointer = pointer
def get_snippet(self, indent: int = 4, max_length: int = 75) -> Any:
if self.buffer is None: # always False
return None
head = ""
start = self.pointer
while start > 0 and self.buffer[start - 1] not in '\0\r\n\x85\u2028\u2029':
start -= 1
if self.pointer - start > max_length / 2 - 1:
head = ' ... '
start += 5
break
tail = ""
end = self.pointer
while end < len(self.buffer) and self.buffer[end] not in '\0\r\n\x85\u2028\u2029':
end += 1
if end - self.pointer > max_length / 2 - 1:
tail = ' ... '
end -= 5
break
snippet = self.buffer[start:end]
caret = '^'
caret = f'^ (line: {self.line + 1})'
return (
' ' * indent
+ head
+ snippet
+ tail
+ '\n'
+ ' ' * (indent + self.pointer - start + len(head))
+ caret
)
def __str__(self) -> Any:
snippet = self.get_snippet()
where = f' in "{self.name!s}", line {self.line + 1:d}, column {self.column + 1:d}'
if snippet is not None:
where += ':\n' + snippet
return where
def __repr__(self) -> Any:
snippet = self.get_snippet()
where = f' in "{self.name!s}", line {self.line + 1:d}, column {self.column + 1:d}'
if snippet is not None:
where += ':\n' + snippet
return where
class CommentMark:
__slots__ = ('column',)
def __init__(self, column: Any) -> None:
self.column = column
class YAMLError(Exception):
pass
class MarkedYAMLError(YAMLError):
def __init__(
self,
context: Any = None,
context_mark: Any = None,
problem: Any = None,
problem_mark: Any = None,
note: Any = None,
warn: Any = None,
) -> None:
self.context = context
self.context_mark = context_mark
self.problem = problem
self.problem_mark = problem_mark
self.note = note
# warn is ignored
def __str__(self) -> Any:
lines: List[str] = []
if self.context is not None:
lines.append(self.context)
if self.context_mark is not None and (
self.problem is None
or self.problem_mark is None
or self.context_mark.name != self.problem_mark.name
or self.context_mark.line != self.problem_mark.line
or self.context_mark.column != self.problem_mark.column
):
lines.append(str(self.context_mark))
if self.problem is not None:
lines.append(self.problem)
if self.problem_mark is not None:
lines.append(str(self.problem_mark))
if self.note is not None and self.note:
note = textwrap.dedent(self.note)
lines.append(note)
return '\n'.join(lines)
class YAMLStreamError(Exception):
pass
class YAMLWarning(Warning):
pass
class MarkedYAMLWarning(YAMLWarning):
def __init__(
self,
context: Any = None,
context_mark: Any = None,
problem: Any = None,
problem_mark: Any = None,
note: Any = None,
warn: Any = None,
) -> None:
self.context = context
self.context_mark = context_mark
self.problem = problem
self.problem_mark = problem_mark
self.note = note
self.warn = warn
def __str__(self) -> Any:
lines: List[str] = []
if self.context is not None:
lines.append(self.context)
if self.context_mark is not None and (
self.problem is None
or self.problem_mark is None
or self.context_mark.name != self.problem_mark.name
or self.context_mark.line != self.problem_mark.line
or self.context_mark.column != self.problem_mark.column
):
lines.append(str(self.context_mark))
if self.problem is not None:
lines.append(self.problem)
if self.problem_mark is not None:
lines.append(str(self.problem_mark))
if self.note is not None and self.note:
note = textwrap.dedent(self.note)
lines.append(note)
if self.warn is not None and self.warn:
warn = textwrap.dedent(self.warn)
lines.append(warn)
return '\n'.join(lines)
class ReusedAnchorWarning(YAMLWarning):
pass
class UnsafeLoaderWarning(YAMLWarning):
text = """
The default 'Loader' for 'load(stream)' without further arguments can be unsafe.
Use 'load(stream, Loader=ruamel.yaml.Loader)' explicitly if that is OK.
Alternatively include the following in your code:
import warnings
warnings.simplefilter('ignore', ruamel.yaml.error.UnsafeLoaderWarning)
In most other cases you should consider using 'safe_load(stream)'"""
pass
warnings.simplefilter('once', UnsafeLoaderWarning)
class MantissaNoDotYAML1_1Warning(YAMLWarning):
def __init__(self, node: Any, flt_str: Any) -> None:
self.node = node
self.flt = flt_str
def __str__(self) -> Any:
line = self.node.start_mark.line
col = self.node.start_mark.column
return f"""
In YAML 1.1 floating point values should have a dot ('.') in their mantissa.
See the Floating-Point Language-Independent Type for YAML™ Version 1.1 specification
( http://yaml.org/type/float.html ). This dot is not required for JSON nor for YAML 1.2
Correct your float: "{self.flt}" on line: {line}, column: {col}
or alternatively include the following in your code:
import warnings
warnings.simplefilter('ignore', ruamel.yaml.error.MantissaNoDotYAML1_1Warning)
"""
warnings.simplefilter('once', MantissaNoDotYAML1_1Warning)
class YAMLFutureWarning(Warning):
pass
class MarkedYAMLFutureWarning(YAMLFutureWarning):
def __init__(
self,
context: Any = None,
context_mark: Any = None,
problem: Any = None,
problem_mark: Any = None,
note: Any = None,
warn: Any = None,
) -> None:
self.context = context
self.context_mark = context_mark
self.problem = problem
self.problem_mark = problem_mark
self.note = note
self.warn = warn
def __str__(self) -> Any:
lines: List[str] = []
if self.context is not None:
lines.append(self.context)
if self.context_mark is not None and (
self.problem is None
or self.problem_mark is None
or self.context_mark.name != self.problem_mark.name
or self.context_mark.line != self.problem_mark.line
or self.context_mark.column != self.problem_mark.column
):
lines.append(str(self.context_mark))
if self.problem is not None:
lines.append(self.problem)
if self.problem_mark is not None:
lines.append(str(self.problem_mark))
if self.note is not None and self.note:
note = textwrap.dedent(self.note)
lines.append(note)
if self.warn is not None and self.warn:
warn = textwrap.dedent(self.warn)
lines.append(warn)
return '\n'.join(lines)
|
