mirror of https://github.com/morpheus65535/bazarr
364 lines
10 KiB
Python
364 lines
10 KiB
Python
![]() |
#!/usr/bin/env python
|
||
|
# -*- coding: utf-8 -*-
|
||
|
"""
|
||
|
Entry point functions and classes for Rebulk
|
||
|
"""
|
||
|
from logging import getLogger
|
||
|
|
||
|
from .match import Matches
|
||
|
|
||
|
from .pattern import RePattern, StringPattern, FunctionalPattern
|
||
|
from .chain import Chain
|
||
|
|
||
|
from .processors import ConflictSolver, PrivateRemover
|
||
|
from .loose import set_defaults
|
||
|
from .utils import extend_safe
|
||
|
from .rules import Rules
|
||
|
|
||
|
log = getLogger(__name__).log
|
||
|
|
||
|
|
||
|
class Rebulk(object):
|
||
|
r"""
|
||
|
Regular expression, string and function based patterns are declared in a ``Rebulk`` object. It use a fluent API to
|
||
|
chain ``string``, ``regex``, and ``functional`` methods to define various patterns types.
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
>>> from rebulk import Rebulk
|
||
|
>>> bulk = Rebulk().string('brown').regex(r'qu\w+').functional(lambda s: (20, 25))
|
||
|
|
||
|
When ``Rebulk`` object is fully configured, you can call ``matches`` method with an input string to retrieve all
|
||
|
``Match`` objects found by registered pattern.
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
>>> bulk.matches("The quick brown fox jumps over the lazy dog")
|
||
|
[<brown:(10, 15)>, <quick:(4, 9)>, <jumps:(20, 25)>]
|
||
|
|
||
|
If multiple ``Match`` objects are found at the same position, only the longer one is kept.
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
>>> bulk = Rebulk().string('lakers').string('la')
|
||
|
>>> bulk.matches("the lakers are from la")
|
||
|
[<lakers:(4, 10)>, <la:(20, 22)>]
|
||
|
"""
|
||
|
# pylint:disable=protected-access
|
||
|
|
||
|
def __init__(self, disabled=lambda context: False, default_rules=True):
|
||
|
"""
|
||
|
Creates a new Rebulk object.
|
||
|
:param disabled: if True, this pattern is disabled. Can also be a function(context).
|
||
|
:type disabled: bool|function
|
||
|
:param default_rules: use default rules
|
||
|
:type default_rules:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
if not callable(disabled):
|
||
|
self.disabled = lambda context: disabled
|
||
|
else:
|
||
|
self.disabled = disabled
|
||
|
self._patterns = []
|
||
|
self._rules = Rules()
|
||
|
if default_rules:
|
||
|
self.rules(ConflictSolver, PrivateRemover)
|
||
|
self._defaults = {}
|
||
|
self._regex_defaults = {}
|
||
|
self._string_defaults = {}
|
||
|
self._functional_defaults = {}
|
||
|
self._chain_defaults = {}
|
||
|
self._rebulks = []
|
||
|
|
||
|
def pattern(self, *pattern):
|
||
|
"""
|
||
|
Add patterns objects
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern: rebulk.pattern.Pattern
|
||
|
:return: self
|
||
|
:rtype: Rebulk
|
||
|
"""
|
||
|
self._patterns.extend(pattern)
|
||
|
return self
|
||
|
|
||
|
def defaults(self, **kwargs):
|
||
|
"""
|
||
|
Define default keyword arguments for all patterns
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
self._defaults = kwargs
|
||
|
return self
|
||
|
|
||
|
def regex_defaults(self, **kwargs):
|
||
|
"""
|
||
|
Define default keyword arguments for functional patterns.
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
self._regex_defaults = kwargs
|
||
|
return self
|
||
|
|
||
|
def regex(self, *pattern, **kwargs):
|
||
|
"""
|
||
|
Add re pattern
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:return: self
|
||
|
:rtype: Rebulk
|
||
|
"""
|
||
|
self.pattern(self.build_re(*pattern, **kwargs))
|
||
|
return self
|
||
|
|
||
|
def build_re(self, *pattern, **kwargs):
|
||
|
"""
|
||
|
Builds a new regular expression pattern
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
set_defaults(self._regex_defaults, kwargs)
|
||
|
set_defaults(self._defaults, kwargs)
|
||
|
return RePattern(*pattern, **kwargs)
|
||
|
|
||
|
def string_defaults(self, **kwargs):
|
||
|
"""
|
||
|
Define default keyword arguments for string patterns.
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
self._string_defaults = kwargs
|
||
|
return self
|
||
|
|
||
|
def string(self, *pattern, **kwargs):
|
||
|
"""
|
||
|
Add string pattern
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:return: self
|
||
|
:rtype: Rebulk
|
||
|
"""
|
||
|
self.pattern(self.build_string(*pattern, **kwargs))
|
||
|
return self
|
||
|
|
||
|
def build_string(self, *pattern, **kwargs):
|
||
|
"""
|
||
|
Builds a new string pattern
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
set_defaults(self._string_defaults, kwargs)
|
||
|
set_defaults(self._defaults, kwargs)
|
||
|
return StringPattern(*pattern, **kwargs)
|
||
|
|
||
|
def functional_defaults(self, **kwargs):
|
||
|
"""
|
||
|
Define default keyword arguments for functional patterns.
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
self._functional_defaults = kwargs
|
||
|
return self
|
||
|
|
||
|
def functional(self, *pattern, **kwargs):
|
||
|
"""
|
||
|
Add functional pattern
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:return: self
|
||
|
:rtype: Rebulk
|
||
|
"""
|
||
|
self.pattern(self.build_functional(*pattern, **kwargs))
|
||
|
return self
|
||
|
|
||
|
def build_functional(self, *pattern, **kwargs):
|
||
|
"""
|
||
|
Builds a new functional pattern
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
set_defaults(self._functional_defaults, kwargs)
|
||
|
set_defaults(self._defaults, kwargs)
|
||
|
return FunctionalPattern(*pattern, **kwargs)
|
||
|
|
||
|
def chain_defaults(self, **kwargs):
|
||
|
"""
|
||
|
Define default keyword arguments for patterns chain.
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
self._chain_defaults = kwargs
|
||
|
return self
|
||
|
|
||
|
def chain(self, **kwargs):
|
||
|
"""
|
||
|
Add patterns chain, using configuration of this rebulk
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
chain = self.build_chain(**kwargs)
|
||
|
self._patterns.append(chain)
|
||
|
return chain
|
||
|
|
||
|
def build_chain(self, **kwargs):
|
||
|
"""
|
||
|
Builds a new patterns chain
|
||
|
|
||
|
:param pattern:
|
||
|
:type pattern:
|
||
|
:param kwargs:
|
||
|
:type kwargs:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
set_defaults(self._chain_defaults, kwargs)
|
||
|
set_defaults(self._defaults, kwargs)
|
||
|
return Chain(self, **kwargs)
|
||
|
|
||
|
def rules(self, *rules):
|
||
|
"""
|
||
|
Add rules as a module, class or instance.
|
||
|
:param rules:
|
||
|
:type rules: list[Rule]
|
||
|
:return:
|
||
|
"""
|
||
|
self._rules.load(*rules)
|
||
|
return self
|
||
|
|
||
|
def rebulk(self, *rebulks):
|
||
|
"""
|
||
|
Add a children rebulk object
|
||
|
:param rebulks:
|
||
|
:type rebulks: Rebulk
|
||
|
:return:
|
||
|
"""
|
||
|
self._rebulks.extend(rebulks)
|
||
|
return self
|
||
|
|
||
|
def matches(self, string, context=None):
|
||
|
"""
|
||
|
Search for all matches with current configuration against input_string
|
||
|
:param string: string to search into
|
||
|
:type string: str
|
||
|
:param context: context to use
|
||
|
:type context: dict
|
||
|
:return: A custom list of matches
|
||
|
:rtype: Matches
|
||
|
"""
|
||
|
matches = Matches(input_string=string)
|
||
|
if context is None:
|
||
|
context = {}
|
||
|
|
||
|
self._matches_patterns(matches, context)
|
||
|
|
||
|
self._execute_rules(matches, context)
|
||
|
|
||
|
return matches
|
||
|
|
||
|
def effective_rules(self, context=None):
|
||
|
"""
|
||
|
Get effective rules for this rebulk object and its children.
|
||
|
:param context:
|
||
|
:type context:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
rules = Rules()
|
||
|
rules.extend(self._rules)
|
||
|
for rebulk in self._rebulks:
|
||
|
if not rebulk.disabled(context):
|
||
|
extend_safe(rules, rebulk._rules)
|
||
|
return rules
|
||
|
|
||
|
def _execute_rules(self, matches, context):
|
||
|
"""
|
||
|
Execute rules for this rebulk and children.
|
||
|
:param matches:
|
||
|
:type matches:
|
||
|
:param context:
|
||
|
:type context:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
if not self.disabled(context):
|
||
|
rules = self.effective_rules(context)
|
||
|
rules.execute_all_rules(matches, context)
|
||
|
|
||
|
def effective_patterns(self, context=None):
|
||
|
"""
|
||
|
Get effective patterns for this rebulk object and its children.
|
||
|
:param context:
|
||
|
:type context:
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
patterns = list(self._patterns)
|
||
|
for rebulk in self._rebulks:
|
||
|
if not rebulk.disabled(context):
|
||
|
extend_safe(patterns, rebulk._patterns)
|
||
|
return patterns
|
||
|
|
||
|
def _matches_patterns(self, matches, context):
|
||
|
"""
|
||
|
Search for all matches with current paterns agains input_string
|
||
|
:param matches: matches list
|
||
|
:type matches: Matches
|
||
|
:param context: context to use
|
||
|
:type context: dict
|
||
|
:return:
|
||
|
:rtype:
|
||
|
"""
|
||
|
if not self.disabled(context):
|
||
|
patterns = self.effective_patterns(context)
|
||
|
for pattern in patterns:
|
||
|
if not pattern.disabled(context):
|
||
|
pattern_matches = pattern.matches(matches.input_string, context)
|
||
|
if pattern_matches:
|
||
|
log(pattern.log_level, "Pattern has %s match(es). (%s)", len(pattern_matches), pattern)
|
||
|
else:
|
||
|
pass
|
||
|
# log(pattern.log_level, "Pattern doesn't match. (%s)" % (pattern,))
|
||
|
for match in pattern_matches:
|
||
|
if match.marker:
|
||
|
log(pattern.log_level, "Marker found. (%s)", match)
|
||
|
matches.markers.append(match)
|
||
|
else:
|
||
|
log(pattern.log_level, "Match found. (%s)", match)
|
||
|
matches.append(match)
|
||
|
else:
|
||
|
log(pattern.log_level, "Pattern is disabled. (%s)", pattern)
|