beets/beetsplug/the.py
2012-12-13 17:14:19 -08:00

119 lines
3.6 KiB
Python

# This file is part of beets.
# Copyright 2012, Blemjhoo Tezoulbr <baobab@heresiarch.info>.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
"""Moves patterns in path formats (suitable for moving articles)."""
import re
import logging
from beets.plugins import BeetsPlugin
from beets import config
config.add({
'the': {
'the': True,
'a': True,
'format': u'{0}, {1}',
'strip': False,
'patterns': [],
}
})
__author__ = 'baobab@heresiarch.info'
__version__ = '1.1'
PATTERN_THE = u'^[the]{3}\s'
PATTERN_A = u'^[a][n]?\s'
FORMAT = u'{0}, {1}'
class ThePlugin(BeetsPlugin):
_instance = None
_log = logging.getLogger('beets')
the = True
a = True
format = u''
strip = False
patterns = []
def __new__(cls, *args, **kwargs):
if cls._instance is None:
cls._instance = super(ThePlugin,
cls).__new__(cls, *args, **kwargs)
return cls._instance
def __init__(self):
super(ThePlugin, self).__init__()
self.patterns = config['the']['patterns'].get(list)
for p in self.patterns:
if p:
try:
re.compile(p)
except re.error:
self._log.error(u'[the] invalid pattern: {0}'.format(p))
else:
if not (p.startswith('^') or p.endswith('$')):
self._log.warn(u'[the] warning: \"{0}\" will not '
'match string start/end'.format(p))
if config['the']['a']:
self.patterns = [PATTERN_A] + self.patterns
if config['the']['the']:
self.patterns = [PATTERN_THE] + self.patterns
if not self.patterns:
self._log.warn(u'[the] no patterns defined!')
def unthe(self, text, pattern):
"""Moves pattern in the path format string or strips it
text -- text to handle
pattern -- regexp pattern (case ignore is already on)
strip -- if True, pattern will be removed
"""
if text:
r = re.compile(pattern, flags=re.IGNORECASE)
try:
t = r.findall(text)[0]
except IndexError:
return text
else:
r = re.sub(r, '', text).strip()
if config['the']['strip']:
return r
else:
fmt = config['the']['format'].get(unicode)
return fmt.format(r, t.strip()).strip()
else:
return u''
def the_template_func(self, text):
if not self.patterns:
return text
if text:
for p in self.patterns:
r = self.unthe(text, p)
if r != text:
break
self._log.debug(u'[the] \"{0}\" -> \"{1}\"'.format(text, r))
return r
else:
return u''
@ThePlugin.template_func('the')
def func_the(text):
"""Provides beets template function %the"""
return ThePlugin().the_template_func(text)