[utils] Add `join_nonempty`

[yt-dlp.git] / yt_dlp / extractor / animeondemand.py

diff --git a/yt_dlp/extractor/animeondemand.py b/yt_dlp/extractor/animeondemand.py
index 54e097d2f756e7c73e6e9b84e00a7d5b0c04b19e..5694f724004a430d4848e3308da77ac46c78890f 100644 (file)
--- a/yt_dlp/extractor/animeondemand.py
+++ b/yt_dlp/extractor/animeondemand.py
@@ -8,6 +8,7 @@
     determine_ext,
     extract_attributes,
     ExtractorError,
+    join_nonempty,
     url_or_none,
     urlencode_postdata,
     urljoin,
@@ -140,15 +141,8 @@ def extract_info(html, video_id, num=None):
                     kind = self._search_regex(
                         r'videomaterialurl/\d+/([^/]+)/',
                         playlist_url, 'media kind', default=None)
-                    format_id_list = []
-                    if lang:
-                        format_id_list.append(lang)
-                    if kind:
-                        format_id_list.append(kind)
-                    if not format_id_list and num is not None:
-                        format_id_list.append(compat_str(num))
-                    format_id = '-'.join(format_id_list)
-                    format_note = ', '.join(filter(None, (kind, lang_note)))
+                    format_id = join_nonempty(lang, kind) if lang or kind else str(num)
+                    format_note = join_nonempty(kind, lang_note, delim=', ')
                     item_id_list = []
                     if format_id:
                         item_id_list.append(format_id)
@@ -195,12 +189,10 @@ def extract_info(html, video_id, num=None):
                         if not file_:
                             continue
                         ext = determine_ext(file_)
-                        format_id_list = [lang, kind]
-                        if ext == 'm3u8':
-                            format_id_list.append('hls')
-                        elif source.get('type') == 'video/dash' or ext == 'mpd':
-                            format_id_list.append('dash')
-                        format_id = '-'.join(filter(None, format_id_list))
+                        format_id = join_nonempty(
+                            lang, kind,
+                            'hls' if ext == 'm3u8' else None,
+                            'dash' if source.get('type') == 'video/dash' or ext == 'mpd' else None)
                         if ext == 'm3u8':
                             file_formats = self._extract_m3u8_formats(
                                 file_, video_id, 'mp4',