mirror of
https://github.com/morpheus65535/bazarr.git
synced 2024-11-12 02:22:56 +08:00
101 lines
3.2 KiB
Python
101 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
SubRip's subtitle parser
|
|
"""
|
|
|
|
from pysrt.srtexc import InvalidItem, InvalidIndex
|
|
from pysrt.srttime import SubRipTime
|
|
from pysrt.comparablemixin import ComparableMixin
|
|
from pysrt.compat import str, is_py2
|
|
import re
|
|
|
|
|
|
class SubRipItem(ComparableMixin):
|
|
"""
|
|
SubRipItem(index, start, end, text, position)
|
|
|
|
index -> int: index of item in file. 0 by default.
|
|
start, end -> SubRipTime or coercible.
|
|
text -> unicode: text content for item.
|
|
position -> unicode: raw srt/vtt "display coordinates" string
|
|
"""
|
|
ITEM_PATTERN = str('%s\n%s --> %s%s\n%s\n')
|
|
TIMESTAMP_SEPARATOR = '-->'
|
|
|
|
def __init__(self, index=0, start=None, end=None, text='', position=''):
|
|
try:
|
|
self.index = int(index)
|
|
except (TypeError, ValueError): # try to cast as int, but it's not mandatory
|
|
self.index = index
|
|
|
|
self.start = SubRipTime.coerce(start or 0)
|
|
self.end = SubRipTime.coerce(end or 0)
|
|
self.position = str(position)
|
|
self.text = str(text)
|
|
|
|
@property
|
|
def duration(self):
|
|
return self.end - self.start
|
|
|
|
@property
|
|
def text_without_tags(self):
|
|
RE_TAG = re.compile(r'<[^>]*?>')
|
|
return RE_TAG.sub('', self.text)
|
|
|
|
@property
|
|
def characters_per_second(self):
|
|
characters_count = len(self.text_without_tags.replace('\n', ''))
|
|
try:
|
|
return characters_count / (self.duration.ordinal / 1000.0)
|
|
except ZeroDivisionError:
|
|
return 0.0
|
|
|
|
def __str__(self):
|
|
position = ' %s' % self.position if self.position.strip() else ''
|
|
return self.ITEM_PATTERN % (self.index, self.start, self.end,
|
|
position, self.text)
|
|
if is_py2:
|
|
__unicode__ = __str__
|
|
|
|
def __str__(self):
|
|
raise NotImplementedError('Use unicode() instead!')
|
|
|
|
def _cmpkey(self):
|
|
return (self.start, self.end)
|
|
|
|
def shift(self, *args, **kwargs):
|
|
"""
|
|
shift(hours, minutes, seconds, milliseconds, ratio)
|
|
|
|
Add given values to start and end attributes.
|
|
All arguments are optional and have a default value of 0.
|
|
"""
|
|
self.start.shift(*args, **kwargs)
|
|
self.end.shift(*args, **kwargs)
|
|
|
|
@classmethod
|
|
def from_string(cls, source):
|
|
return cls.from_lines(source.splitlines(True))
|
|
|
|
@classmethod
|
|
def from_lines(cls, lines):
|
|
if len(lines) < 2:
|
|
raise InvalidItem()
|
|
lines = [l.rstrip() for l in lines]
|
|
index = None
|
|
if cls.TIMESTAMP_SEPARATOR not in lines[0]:
|
|
index = lines.pop(0)
|
|
start, end, position = cls.split_timestamps(lines[0])
|
|
body = '\n'.join(lines[1:])
|
|
return cls(index, start, end, body, position)
|
|
|
|
@classmethod
|
|
def split_timestamps(cls, line):
|
|
timestamps = line.split(cls.TIMESTAMP_SEPARATOR)
|
|
if len(timestamps) != 2:
|
|
raise InvalidItem()
|
|
start, end_and_position = timestamps
|
|
end_and_position = end_and_position.lstrip().split(' ', 1)
|
|
end = end_and_position[0]
|
|
position = end_and_position[1] if len(end_and_position) > 1 else ''
|
|
return (s.strip() for s in (start, end, position))
|