bazarr/libs/pysubs2/tmp.py

89 lines
3.4 KiB
Python

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, tmptimestamp_to_ms
#: Pattern that matches TMP timestamp
TMPTIMESTAMP = re.compile(r"(\d{1,2}):(\d{2}):(\d{2})")
#: Pattern that matches TMP line
TMP_LINE = re.compile(r"(\d{1,2}:\d{2}:\d{2}):(.+)")
#: Largest timestamp allowed in Tmp, ie. 99:59:59.
MAX_REPRESENTABLE_TIME = make_time(h=100) - 1
def ms_to_timestamp(ms):
"""Convert ms to 'HH:MM:SS'"""
# 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" % (h, m, s)
class TmpFormat(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 TMP_LINE.match(line) and len(TMP_LINE.findall(line)) == 1:
return "tmp"
@classmethod
def from_file(cls, subs, fp, format_, **kwargs):
timestamps = [] # (start)
lines = [] # contains lists of lines following each timestamp
for line in fp:
match = TMP_LINE.match(line)
if not match:
continue
start, text = match.groups()
start = tmptimestamp_to_ms(TMPTIMESTAMP.match(start).groups())
#calculate endtime from starttime + 500 miliseconds + 67 miliseconds per each character (15 chars per second)
end = start + 500 + (len(line) * 67)
timestamps.append((start, end))
lines.append(text)
def prepare_text(lines):
lines = lines.replace("|", r"\N") # convert newlines
lines = re.sub(r"< *u *>", "{\\\\u1}", lines) # not r" for Python 2.7 compat, triggers unicodeescape
lines = re.sub(r"< */? *[a-zA-Z][^>]*>", "", lines) # strip other HTML tags
return lines
subs.events = [SSAEvent(start=start, end=end, text=prepare_text(lines))
for (start, end), lines in zip(timestamps, 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 + ":" + text, end="\n", file=fp)
#print(text, end="\n\n", file=fp)