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Merge fd634f057b into 73bf102116

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TiramisuCute 2025-06-17 23:20:50 +03:00 committed by GitHub
commit 70f4922e38
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1 changed files with 27 additions and 2 deletions
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29
yt_dlp/YoutubeDL.py
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@ -1412,8 +1412,33 @@ def create_key(outer_mobj):
value = map(str, variadic(value) if '#' in flags else [value])
value, fmt = shell_quote(value, shell=True), str_fmt
elif fmt[-1] == 'B': # bytes
value = f'%{str_fmt}'.encode() % str(value).encode()
value, fmt = value.decode('utf-8', 'ignore'), 's'
limit_match = re.match(r'\.?(\d+)B$', fmt) # Match optional dot, digits, then B at the end
if limit_match:
try:
limit = int(limit_match.group(1))
byte_value = str(value).encode('utf-8')
if len(byte_value) > limit:
# Truncate carefully: step back if limit falls within a multi-byte char
original_limit = limit
while limit > 0 and (byte_value[limit] & 0xC0) == 0x80: # 0xC0 = 11000000, 0x80 = 10000000
limit -= 1
# If we stepped back too far (e.g., limit was 1 on a 2-byte char), result is empty
if limit < 0:
limit = 0
# Check if the first byte itself indicates a multi-byte char that exceeds the original limit
if limit == 0 and original_limit > 0 and (byte_value[0] & 0xC0) >= 0xC0:
byte_value = b'' # Cannot fit even the first multi-byte char
else:
byte_value = byte_value[:limit]
value = byte_value.decode('utf-8', 'ignore')
except ValueError: # Should not happen with regex match, but safety first
self.report_warning(f'Error parsing byte limit from specifier: {fmt}')
value = str(value) # Keep original value
else:
self.report_warning(f'Invalid byte limit format specifier: {fmt}')
value = str(value) # Keep original value if format is invalid
fmt = 's' # Ensure final substitution treats it as a string
elif fmt[-1] == 'U': # unicode normalized
value, fmt = unicodedata.normalize(
# "+" = compatibility equivalence, "#" = NFD