Recognize combining accents in sanitize_filename()

[sebma]

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Add -v flag to your command line you run youtube-dl with, copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

$ youtube-dl -v <your command line>
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
[debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
[debug] youtube-dl version 2016.06.27
[debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
[debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
[debug] Proxy map: {}
...
<end of log>

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If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• Single video: https://www.youtube.com/watch?v=BaW_jenozKc
• Single video: https://youtu.be/BaW_jenozKc
• Playlist: https://www.youtube.com/playlist?list=PL4lCao7KL_QFVb7Iudeipvc2BCavECqzc

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Hi,

There are extra underscores in the filename in restrict mode when there should not be :

$ youtube-dl --version
2016.06.27
$ youtube-dl -f 18 --get-filename --restrict-filename hYDQZleciXE
Joseph_Prince_-_La_Gra_ce_est_Supe_rieure_a_La_Loi_-_FR__18__hYDQZleciXE.mp4

The command line youtube-dl -f 18 --get-filename --restrict-filename hYDQZleciXE should return:

Joseph_Prince_-_La_Grace_est_Superieure_a_La_Loi_-_FR__18__hYDQZleciXE.mp4

Can you have a look ?

[yan12125]

The letter â is in fact a plain alphabet letter a with "combining circumflex accent". Such combinations are not supported yet.

Reference: http://www.utf8-chartable.de/unicode-utf8-table.pl?start=768&number=128

[sebma]

Hi, why does the "é" appears like "_" instead of "e" ?

[yan12125]

é is not turned into a underscore. Instead, é is a combination of e and accent symbol, and the accent symbol is turned into _, so the result is e_.

That's indeed a problem and seems it's hard to fix. Apparently an algorithm to identify accent symbols is necessary.