You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
3.5 KiB
90 lines
3.5 KiB
from __future__ import print_function, unicode_literals
|
|
|
|
import re
|
|
from .formatbase import FormatBase
|
|
from .ssaevent import SSAEvent
|
|
from .ssastyle import SSAStyle
|
|
from .substation import parse_tags
|
|
from .time import ms_to_times, make_time, TIMESTAMP, timestamp_to_ms
|
|
|
|
#: Largest timestamp allowed in SubRip, ie. 99:59:59,999.
|
|
MAX_REPRESENTABLE_TIME = make_time(h=100) - 1
|
|
|
|
def ms_to_timestamp(ms):
|
|
"""Convert ms to 'HH:MM:SS,mmm'"""
|
|
# XXX throw on overflow/underflow?
|
|
if ms < 0: ms = 0
|
|
if ms > MAX_REPRESENTABLE_TIME: ms = MAX_REPRESENTABLE_TIME
|
|
h, m, s, ms = ms_to_times(ms)
|
|
return "%02d:%02d:%02d,%03d" % (h, m, s, ms)
|
|
|
|
|
|
class SubripFormat(FormatBase):
|
|
@classmethod
|
|
def guess_format(cls, text):
|
|
if "[Script Info]" in text or "[V4+ Styles]" in text:
|
|
# disambiguation vs. SSA/ASS
|
|
return None
|
|
|
|
for line in text.splitlines():
|
|
if len(TIMESTAMP.findall(line)) == 2:
|
|
return "srt"
|
|
|
|
@classmethod
|
|
def from_file(cls, subs, fp, format_, **kwargs):
|
|
timestamps = [] # (start, end)
|
|
following_lines = [] # contains lists of lines following each timestamp
|
|
|
|
for line in fp:
|
|
stamps = TIMESTAMP.findall(line)
|
|
if len(stamps) == 2: # timestamp line
|
|
start, end = map(timestamp_to_ms, stamps)
|
|
timestamps.append((start, end))
|
|
following_lines.append([])
|
|
else:
|
|
if timestamps:
|
|
following_lines[-1].append(line)
|
|
|
|
def prepare_text(lines):
|
|
s = "".join(lines).strip()
|
|
s = re.sub(r"\n* *\d+ *$", "", s) # strip number of next subtitle
|
|
s = re.sub(r"< *i *>", r"{\i1}", s)
|
|
s = re.sub(r"< */ *i *>", r"{\i0}", s)
|
|
s = re.sub(r"< *s *>", r"{\s1}", s)
|
|
s = re.sub(r"< */ *s *>", r"{\s0}", s)
|
|
s = re.sub(r"< *u *>", "{\\u1}", s) # not r" for Python 2.7 compat, triggers unicodeescape
|
|
s = re.sub(r"< */ *u *>", "{\\u0}", s)
|
|
s = re.sub(r"< */? *[a-zA-Z][^>]*>", "", s) # strip other HTML tags
|
|
s = re.sub(r"\r", "", s) # convert newlines
|
|
s = re.sub(r"\n", r"\N", s) # convert newlines
|
|
return s
|
|
|
|
subs.events = [SSAEvent(start=start, end=end, text=prepare_text(lines))
|
|
for (start, end), lines in zip(timestamps, following_lines)]
|
|
|
|
@classmethod
|
|
def to_file(cls, subs, fp, format_, **kwargs):
|
|
def prepare_text(text, style):
|
|
body = []
|
|
for fragment, sty in parse_tags(text, style, subs.styles):
|
|
fragment = fragment.replace(r"\h", " ")
|
|
fragment = fragment.replace(r"\n", "\n")
|
|
fragment = fragment.replace(r"\N", "\n")
|
|
if sty.italic: fragment = "<i>%s</i>" % fragment
|
|
if sty.underline: fragment = "<u>%s</u>" % fragment
|
|
if sty.strikeout: fragment = "<s>%s</s>" % fragment
|
|
body.append(fragment)
|
|
|
|
return re.sub("\n+", "\n", "".join(body).strip())
|
|
|
|
visible_lines = (line for line in subs if not line.is_comment)
|
|
|
|
for i, line in enumerate(visible_lines, 1):
|
|
start = ms_to_timestamp(line.start)
|
|
end = ms_to_timestamp(line.end)
|
|
text = prepare_text(line.text, subs.styles.get(line.style, SSAStyle.DEFAULT_STYLE))
|
|
|
|
print("%d" % i, file=fp) # Python 2.7 compat
|
|
print(start, "-->", end, file=fp)
|
|
print(text, end="\n\n", file=fp)
|