Merge 72db217289 into 4d05f84325

* no space after @ in decorator

test/test_jsinterp.py

@@ -577,9 +577,11 @@ class TestJSInterpreter(unittest.TestCase):
     def test_unary_operators(self):
         jsi = JSInterpreter('function f(){return 2  -  - - 2;}')
         self.assertEqual(jsi.call_function('f'), 0)
-        # fails
+        jsi = JSInterpreter('function f(){return 2 + - + - - 2;}')
-        # jsi = JSInterpreter('function f(){return 2 + - + - - 2;}')
+        self.assertEqual(jsi.call_function('f'), 0)
-        # self.assertEqual(jsi.call_function('f'), 0)
+        # https://github.com/ytdl-org/youtube-dl/issues/32815
+        jsi = JSInterpreter('function f(){return 0  - 7 * - 6;}')
+        self.assertEqual(jsi.call_function('f'), 42)
 
     """ # fails so far
     def test_packed(self):

test/test_youtube_signature.py

@@ -158,6 +158,10 @@ _NSIG_TESTS = [
         'https://www.youtube.com/s/player/b7910ca8/player_ias.vflset/en_US/base.js',
         '_hXMCwMt9qE310D', 'LoZMgkkofRMCZQ',
     ),
+    (
+        'https://www.youtube.com/s/player/590f65a6/player_ias.vflset/en_US/base.js',
+        '1tm7-g_A9zsI8_Lay_', 'xI4Vem4Put_rOg',
+    ),
 ]
 
 

youtube_dl/extractor/common.py

@@ -3033,7 +3033,6 @@ class InfoExtractor(object):
             transform_source=transform_source, default=None)
 
     def _extract_jwplayer_data(self, webpage, video_id, *args, **kwargs):
-
         # allow passing `transform_source` through to _find_jwplayer_data()
         transform_source = kwargs.pop('transform_source', None)
         kwfind = compat_kwargs({'transform_source': transform_source}) if transform_source else {}

youtube_dl/extractor/extractors.py

@@ -413,8 +413,6 @@ from .foxnews import (
     FoxNewsArticleIE,
 )
 from .foxsports import FoxSportsIE
-from .franceculture import FranceCultureIE
-from .franceinter import FranceInterIE
 from .francetv import (
     FranceTVIE,
     FranceTVSiteIE,
@@ -1011,7 +1009,11 @@ from .radiocanada import (
 from .radiode import RadioDeIE
 from .radiojavan import RadioJavanIE
 from .radiobremen import RadioBremenIE
-from .radiofrance import RadioFranceIE
+from .radiofrance import (
+    RadioFrancePodcastEpisodeIE,
+    RadioFrancePodcastPlaylistIE,
+    RadioFranceWebradioIE,
+)
 from .rai import (
     RaiPlayIE,
     RaiPlayLiveIE,

youtube_dl/extractor/franceculture.py

@@ -1,73 +0,0 @@
-# coding: utf-8
-from __future__ import unicode_literals
-
-from .common import InfoExtractor
-from ..utils import (
-    determine_ext,
-    extract_attributes,
-    int_or_none,
-)
-
-
-class FranceCultureIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?franceculture\.fr/emissions/(?:[^/]+/)*(?P<id>[^/?#&]+)'
-    _TESTS = [{
-        'url': 'http://www.franceculture.fr/emissions/carnet-nomade/rendez-vous-au-pays-des-geeks',
-        'info_dict': {
-            'id': 'rendez-vous-au-pays-des-geeks',
-            'display_id': 'rendez-vous-au-pays-des-geeks',
-            'ext': 'mp3',
-            'title': 'Rendez-vous au pays des geeks',
-            'thumbnail': r're:^https?://.*\.jpg$',
-            'upload_date': '20140301',
-            'timestamp': 1393700400,
-            'vcodec': 'none',
-        }
-    }, {
-        # no thumbnail
-        'url': 'https://www.franceculture.fr/emissions/la-recherche-montre-en-main/la-recherche-montre-en-main-du-mercredi-10-octobre-2018',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        display_id = self._match_id(url)
-
-        webpage = self._download_webpage(url, display_id)
-
-        video_data = extract_attributes(self._search_regex(
-            r'''(?sx)
-                (?:
-                    </h1>|
-                    <div[^>]+class="[^"]*?(?:title-zone-diffusion|heading-zone-(?:wrapper|player-button))[^"]*?"[^>]*>
-                ).*?
-                (<button[^>]+data-(?:url|asset-source)="[^"]+"[^>]+>)
-            ''',
-            webpage, 'video data'))
-
-        video_url = video_data.get('data-url') or video_data['data-asset-source']
-        title = video_data.get('data-asset-title') or video_data.get('data-diffusion-title') or self._og_search_title(webpage)
-
-        description = self._html_search_regex(
-            r'(?s)<div[^>]+class="intro"[^>]*>.*?<h2>(.+?)</h2>',
-            webpage, 'description', default=None)
-        thumbnail = self._search_regex(
-            r'(?s)<figure[^>]+itemtype="https://schema.org/ImageObject"[^>]*>.*?<img[^>]+(?:data-dejavu-)?src="([^"]+)"',
-            webpage, 'thumbnail', default=None)
-        uploader = self._html_search_regex(
-            r'(?s)<span class="author">(.*?)</span>',
-            webpage, 'uploader', default=None)
-        ext = determine_ext(video_url.lower())
-
-        return {
-            'id': display_id,
-            'display_id': display_id,
-            'url': video_url,
-            'title': title,
-            'description': description,
-            'thumbnail': thumbnail,
-            'ext': ext,
-            'vcodec': 'none' if ext == 'mp3' else None,
-            'uploader': uploader,
-            'timestamp': int_or_none(video_data.get('data-start-time')) or int_or_none(video_data.get('data-asset-created-date')),
-            'duration': int_or_none(video_data.get('data-duration')),
-        }

youtube_dl/extractor/franceinter.py

@@ -1,59 +0,0 @@
-# coding: utf-8
-from __future__ import unicode_literals
-
-from .common import InfoExtractor
-from ..utils import month_by_name
-
-
-class FranceInterIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?franceinter\.fr/emissions/(?P<id>[^?#]+)'
-
-    _TEST = {
-        'url': 'https://www.franceinter.fr/emissions/affaires-sensibles/affaires-sensibles-07-septembre-2016',
-        'md5': '9e54d7bdb6fdc02a841007f8a975c094',
-        'info_dict': {
-            'id': 'affaires-sensibles/affaires-sensibles-07-septembre-2016',
-            'ext': 'mp3',
-            'title': 'Affaire Cahuzac : le contentieux du compte en Suisse',
-            'description': 'md5:401969c5d318c061f86bda1fa359292b',
-            'thumbnail': r're:^https?://.*\.jpg',
-            'upload_date': '20160907',
-        },
-    }
-
-    def _real_extract(self, url):
-        video_id = self._match_id(url)
-
-        webpage = self._download_webpage(url, video_id)
-
-        video_url = self._search_regex(
-            r'(?s)<div[^>]+class=["\']page-diffusion["\'][^>]*>.*?<button[^>]+data-url=(["\'])(?P<url>(?:(?!\1).)+)\1',
-            webpage, 'video url', group='url')
-
-        title = self._og_search_title(webpage)
-        description = self._og_search_description(webpage)
-        thumbnail = self._html_search_meta(['og:image', 'twitter:image'], webpage)
-
-        upload_date_str = self._search_regex(
-            r'class=["\']\s*cover-emission-period\s*["\'][^>]*>[^<]+\s+(\d{1,2}\s+[^\s]+\s+\d{4})<',
-            webpage, 'upload date', fatal=False)
-        if upload_date_str:
-            upload_date_list = upload_date_str.split()
-            upload_date_list.reverse()
-            upload_date_list[1] = '%02d' % (month_by_name(upload_date_list[1], lang='fr') or 0)
-            upload_date_list[2] = '%02d' % int(upload_date_list[2])
-            upload_date = ''.join(upload_date_list)
-        else:
-            upload_date = None
-
-        return {
-            'id': video_id,
-            'title': title,
-            'description': description,
-            'thumbnail': thumbnail,
-            'upload_date': upload_date,
-            'formats': [{
-                'url': video_url,
-                'vcodec': 'none',
-            }],
-        }

youtube_dl/extractor/palcomp3.py

@@ -8,7 +8,7 @@ from ..compat import compat_str
 from ..utils import (
     int_or_none,
     str_or_none,
-    try_get,
+    traverse_obj,
 )
 
 
@@ -109,7 +109,7 @@ class PalcoMP3ArtistIE(PalcoMP3BaseIE):
     }
     name'''
 
-    @ classmethod
+    @classmethod
     def suitable(cls, url):
         return False if re.match(PalcoMP3IE._VALID_URL, url) else super(PalcoMP3ArtistIE, cls).suitable(url)
 
@@ -118,7 +118,8 @@ class PalcoMP3ArtistIE(PalcoMP3BaseIE):
         artist = self._call_api(artist_slug, self._ARTIST_FIELDS_TMPL)['artist']
 
         def entries():
-            for music in (try_get(artist, lambda x: x['musics']['nodes'], list) or []):
+            for music in traverse_obj(artist, (
+                    'musics', 'nodes', lambda _, m: m['musicID'])):
                 yield self._parse_music(music)
 
         return self.playlist_result(
@@ -137,7 +138,7 @@ class PalcoMP3VideoIE(PalcoMP3BaseIE):
             'title': 'Maiara e Maraisa - Você Faz Falta Aqui - DVD Ao Vivo Em Campo Grande',
             'description': 'md5:7043342c09a224598e93546e98e49282',
             'upload_date': '20161107',
-            'uploader_id': 'maiaramaraisaoficial',
+            'uploader_id': '@maiaramaraisaoficial',
             'uploader': 'Maiara e Maraisa',
         }
     }]

youtube_dl/extractor/radiofrance.py

@@ -4,56 +4,284 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
+from ..utils import (
+    ExtractorError,
+    get_element_by_attribute,
+    int_or_none,
+    parse_iso8601,
+    strip_or_none,
+    url_or_none
+)
 
 
-class RadioFranceIE(InfoExtractor):
+class RadioFranceBaseIE(InfoExtractor):
-    _VALID_URL = r'^https?://maison\.radiofrance\.fr/radiovisions/(?P<id>[^?#]+)'
+    _BASE_URL = r'https://www.radiofrance.fr/'
-    IE_NAME = 'radiofrance'
 
-    _TEST = {
+    def extract_api_data(self, api_path, id, html):
-        'url': 'http://maison.radiofrance.fr/radiovisions/one-one',
+        pattern = r'<script [^>]*sveltekit:data-url="https://www\.radiofrance\.fr/api/v[\d.]+/%s[^>]*>(?P<json>.*)</script>' % api_path
-        'md5': 'bdbb28ace95ed0e04faab32ba3160daf',
+        json = self._search_regex(pattern, html, 'API data', flags=re.DOTALL, group='json')
-        'info_dict': {
+
-            'id': 'one-one',
+        if not json:
-            'ext': 'ogg',
+            raise ExtractorError('%s: JSON data not found' % id)
-            'title': 'One to one',
+
-            'description': "Plutôt que d'imaginer la radio de demain comme technologie ou comme création de contenu, je veux montrer que quelles que soient ses évolutions, j'ai l'intime conviction que la radio continuera d'être un grand média de proximité pour les auditeurs.",
+        try:
-            'uploader': 'Thomas Hercouët',
+            json = self._parse_json(json, id)
-        },
+            json = self._parse_json(json['body'], id)
+
+            if api_path == 'path':
+                return json['content']
+            elif api_path == 'stations':
+                return json
+            else:
+                raise ExtractorError('Coding error')
+        except KeyError:
+            raise ExtractorError('%s: Invalid JSON' % id)
+
+    def get_title(self, api_data, webpage=None):
+        title = strip_or_none(api_data.get('title'))
+        if not title and webpage:
+            title = strip_or_none(get_element_by_attribute('h1', None, webpage, False)) or strip_or_none(self._og_search_title(webpage))
+        return title
+
+    def get_description(self, api_data, webpage=None):
+        description = strip_or_none(api_data.get('standFirst'))
+        if not description and webpage:
+            description = strip_or_none(self._og_search_description(webpage))
+        return description
+
+    def get_thumbnail(self, api_data, webpage=None):
+        thumbnail = None
+        visual = api_data.get('visual')
+        if visual:
+            thumbnail = url_or_none(visual.get('src'))
+        if not thumbnail and webpage:
+            thumbnail = self._og_search_thumbnail(webpage)
+        return thumbnail
+
+    def get_timestamp(self, api_data, webpage=None):
+        timestamp = api_data.get('publishedDate')
+        if not timestamp and webpage:
+            timestamp = parse_iso8601(self._html_search_meta('article:published_time', webpage, 'publication time', ))
+        return timestamp
+
+    def get_brand(self, api_data, webpage=None):
+        brand = strip_or_none(api_data.get('brand'))
+        if not brand and webpage:
+            brand = self._og_search_property('site_name', webpage, 'Station name', fatal=False)
+        return brand
+
+    def extract_episode(self, episode_id, api_data):
+        manifestations = api_data.get('manifestations')
+        if manifestations is None or len(manifestations) == 0:
+            return None, None
+
+        url = url_or_none(manifestations[0]['url'])
+        duration = int_or_none(manifestations[0].get('duration'))
+        return url, duration
+
+    def get_playlist_entries(self, playlist_url, playlist_id, api_data, direction):
+        playlist_data = api_data['expressions']
+
+        entries = []
+        items = playlist_data.get('items')
+        for item in items:
+            episode_path = item.get('path')
+            if episode_path is None:
+                self.report_warning('No path found for episode "%s"', item.get('title'))
+                continue
+            episode_id = RadioFrancePodcastEpisodeIE._match_id(self._BASE_URL + episode_path)
+            if episode_id is None:
+                self.report_warning('Could not parse id of episode from path: "%s"' % episode_path)
+                continue
+            episode_url, duration = self.extract_episode(episode_id, item)
+            if episode_url is None:
+                self.to_screen('Episode "%s" is not available' % episode_path)
+                continue
+            entry = {
+                'id': episode_id,
+                'url': episode_url,
+                'title': self.get_title(item),
+                'description': self.get_description(item),
+                'timestamp': self.get_timestamp(item),
+                'thumbnail': self.get_thumbnail(item),
+                'duration': duration,
             }
+            entries.append(entry)
+
+        page_number = int_or_none(playlist_data.get('pageNumber'))
+        if page_number:
+            if direction in ['both', 'prev'] and playlist_data.get('prev') is not None:
+                webpage, other_api_data = self.get_data(playlist_url, 'path', playlist_id, page=page_number - 1)
+                entries = self.get_playlist_entries(playlist_url, playlist_id, other_api_data, direction='prev') + entries
+            if direction in ['both', 'next'] and playlist_data.get('next') is not None:
+                webpage, other_api_data = self.get_data(playlist_url, 'path', playlist_id, page=page_number + 1)
+                entries = entries + self.get_playlist_entries(playlist_url, playlist_id, other_api_data, direction='next')
+
+        return entries
+
+    def get_data(self, url, api_path, id, page=None):
+        query = {}
+        note = None
+        if page:
+            query['p'] = page
+            note = "Downloading page %i" % page
+        webpage = self._download_webpage(url, id, query=query, note=note)
+        api_data = self.extract_api_data(api_path, id, webpage)
+        return webpage, api_data
+
+
+class RadioFrancePodcastEpisodeIE(RadioFranceBaseIE):
+    _VALID_URL = r'https?://www\.radiofrance\.fr/(?:francemusique|franceinter|franceculture|franceinfo|mouv|fip)/podcasts/.+/.+-(?P<id>\d+)$'
+
+    _TESTS = [{
+        'note': 'Podcast episode with audio from France Info',
+        'url': 'https://www.radiofrance.fr/franceinfo/podcasts/le-brief-eco/le-brief-eco-du-lundi-05-septembre-2022-8310713',
+        'info_dict': {
+            'id': '8310713',
+            'ext': 'mp3',
+            'url': r're:^https?://.*\.mp3$',
+            'title': 'Pour la première fois en vingt ans, l’euro passe sous les 0,99\u00a0dollar',
+            'description': str,
+            'thumbnail': r're:^https?://.*\.jpg$',
+            'timestamp': int,
+            'duration': int,
+            'upload_date': str
+        }
+    }, {
+        'note': 'Podcast episode from France Musique',
+        'url': 'https://www.radiofrance.fr/francemusique/podcasts/allegretto/lever-du-jour-9233228',
+        'only_matching': True
+    }, {
+        'note': 'Podcast episode from FranceInter',
+        'url': 'https://www.radiofrance.fr/franceinter/podcasts/rendez-vous-avec-x/un-mysterieux-echange-digne-de-la-guerre-froide-9343281',
+        'only_matching': True
+    }, {
+        'note': 'Podcast episode from France Culture',
+        'url': 'https://www.radiofrance.fr/franceculture/podcasts/la-science-cqfd/teotihuacan-la-plus-mysterieuse-des-cites-d-or-9224610',
+        'only_matching': True
+    }, {
+        'note': 'Podcast episode from Le Mouv',
+        'url': 'https://www.radiofrance.fr/mouv/podcasts/mouv-dj-la-caution/ncr2a-ne-cherche-rien-d-autre-ailleurs-1197950',
+        'only_matching': True
+    }, {
+        'note': 'Podcast episode from FIP',
+        'url': 'https://www.radiofrance.fr/fip/podcasts/certains-l-aiment-fip/hommage-au-cinema-de-vangelis-4734742',
+        'only_matching': True
+    }]
 
     def _real_extract(self, url):
-        m = re.match(self._VALID_URL, url)
+        id = self._match_id(url)
-        video_id = m.group('id')
+        webpage, api_data = self.get_data(url, 'path', id)
-
+        url, duration = self.extract_episode(id, api_data)
-        webpage = self._download_webpage(url, video_id)
+        if url is None:
-        title = self._html_search_regex(r'<h1>(.*?)</h1>', webpage, 'title')
+            msg = 'Podcast file is not available. If the show is too recent, the file may not have been uploaded yet: try again later.'
-        description = self._html_search_regex(
+            raise ExtractorError(msg, expected=True, video_id=id)
-            r'<div class="bloc_page_wrapper"><div class="text">(.*?)</div>',
-            webpage, 'description', fatal=False)
-        uploader = self._html_search_regex(
-            r'<div class="credit">&nbsp;&nbsp;&copy;&nbsp;(.*?)</div>',
-            webpage, 'uploader', fatal=False)
-
-        formats_str = self._html_search_regex(
-            r'class="jp-jplayer[^"]*" data-source="([^"]+)">',
-            webpage, 'audio URLs')
-        formats = [
-            {
-                'format_id': fm[0],
-                'url': fm[1],
-                'vcodec': 'none',
-                'preference': i,
-            }
-            for i, fm in
-            enumerate(re.findall(r"([a-z0-9]+)\s*:\s*'([^']+)'", formats_str))
-        ]
-        self._sort_formats(formats)
 
         return {
-            'id': video_id,
+            'id': id,
-            'title': title,
+            'url': url,
-            'formats': formats,
+            'title': self.get_title(api_data, webpage),
-            'description': description,
+            'description': self.get_description(api_data, webpage),
-            'uploader': uploader,
+            'timestamp': self.get_timestamp(api_data, webpage),
+            'thumbnail': self.get_thumbnail(api_data, webpage),
+            'channel_id': self.get_brand(api_data, webpage),
+            'duration': duration,
+        }
+
+
+class RadioFrancePodcastPlaylistIE(RadioFranceBaseIE):
+    _VALID_URL = r'https?://www\.radiofrance\.fr/(?:francemusique|franceinter|franceculture|franceinfo|mouv|fip)/podcasts/(?P<id>[^/]+?)(?:[?#].*)?$'
+
+    _TESTS = [{
+        'note': 'Podcast show with multiple pages of episodes and some of them are missing',
+        'url': 'https://www.radiofrance.fr/franceculture/podcasts/une-semaine-dans-le-monde-10-11?p=2',
+        'info_dict': {
+            'id': 'une-semaine-dans-le-monde-10-11',
+            'title': 'Une semaine dans le monde | 10-11',
+            'description': str,
+            'timestamp': int
+        },
+        'playlist_count': 23,
+    }]
+
+    def _real_extract(self, url):
+        id = self._match_id(url)
+        webpage, api_data = self.get_data(url, 'path', id)
+
+        entries = self.get_playlist_entries(url, id, api_data, direction='both')
+        entries.reverse()
+
+        return {
+            'id': id,
+            '_type': 'playlist',
+            'entries': entries,
+            'title': self.get_title(api_data, webpage),
+            'description': self.get_description(api_data, webpage),
+            'timestamp': self.get_timestamp(api_data, webpage),
+            'thumbnail': self.get_thumbnail(api_data, webpage),
+            'channel_id': self.get_brand(api_data, webpage),
+        }
+
+
+class RadioFranceWebradioIE(RadioFranceBaseIE):
+    _VALID_URL = r'https?://www\.radiofrance\.fr/(?:francemusique|franceinter|franceculture|franceinfo|mouv|fip)/(?P<id>radio-[^/]+)$'
+
+    _TESTS = [{
+        'note': 'Full list of webradios available at https://www.radiofrance.fr/ecouter-musique',
+        'url': 'https://www.radiofrance.fr/fip/radio-metal',
+        'info_dict': {
+            'id': 'radio-metal',
+            'ext': 'aac',
+            'title': str,
+        },
+        'params': {
+            'format': 'aac',
+            'skip_download': True,
+        }
+    }]
+
+    def get_livestream_formats(self, id, api_data):
+        sources = api_data['media']['sources']
+
+        formats = []
+        for source in sources:
+            url = source.get('url')
+            if not url:
+                continue
+
+            format_id = source.get('format')
+            format = {
+                'url': url,
+                'format_id': format_id,
+                'asr': 48000,
+                'vcodec': 'none'
+            }
+            if format_id == 'mp3':
+                format['preference'] = 1
+                format['acodec'] = 'mp3'
+                format['abr'] = source.get('bitrate')
+            elif format_id == 'aac':
+                format['preference'] = 2
+                format['acodec'] = 'aac'
+                format['abr'] = source.get('bitrate')
+            elif format_id == 'hls':
+                format['preference'] = 0
+                format['manifest_url'] = url
+            formats.append(format)
+
+        if len(formats) == 0:
+            raise ExtractorError('No live streaming URL found')
+        return formats
+
+    def _real_extract(self, url):
+        id = self._match_id(url)
+        webpage, api_data = self.get_data(url, 'stations', id)
+
+        return {
+            'id': id,
+            'title': self.get_title(api_data, webpage),
+            'formats': self.get_livestream_formats(id, api_data),
+            'thumbnail': self.get_thumbnail(api_data, webpage),
+            'channel_id': self.get_brand(api_data, webpage),
+            'is_live': True
         }

youtube_dl/jsinterp.py

@@ -14,6 +14,7 @@ from .utils import (
     remove_quotes,
     unified_timestamp,
     variadic,
+    write_string,
 )
 from .compat import (
     compat_basestring,
@@ -53,15 +54,16 @@ def wraps_op(op):
 
 # NB In principle NaN cannot be checked by membership.
 # Here all NaN values are actually this one, so _NaN is _NaN,
-# although _NaN != _NaN.
+# although _NaN != _NaN. Ditto Infinity.
 
 _NaN = float('nan')
+_Infinity = float('inf')
 
 
 def _js_bit_op(op):
 
     def zeroise(x):
-        return 0 if x in (None, JS_Undefined, _NaN) else x
+        return 0 if x in (None, JS_Undefined, _NaN, _Infinity) else x
 
     @wraps_op(op)
     def wrapped(a, b):
@@ -84,7 +86,7 @@ def _js_arith_op(op):
 def _js_div(a, b):
     if JS_Undefined in (a, b) or not (a or b):
         return _NaN
-    return operator.truediv(a or 0, b) if b else float('inf')
+    return operator.truediv(a or 0, b) if b else _Infinity
 
 
 def _js_mod(a, b):
@@ -220,6 +222,42 @@ class LocalNameSpace(ChainMap):
         return 'LocalNameSpace%s' % (self.maps, )
 
 
+class Debugger(object):
+    ENABLED = False
+
+    @staticmethod
+    def write(*args, **kwargs):
+        level = kwargs.get('level', 100)
+
+        def truncate_string(s, left, right=0):
+            if s is None or len(s) <= left + right:
+                return s
+            return '...'.join((s[:left - 3], s[-right:] if right else ''))
+
+        write_string('[debug] JS: {0}{1}\n'.format(
+            '  ' * (100 - level),
+            ' '.join(truncate_string(compat_str(x), 50, 50) for x in args)))
+
+    @classmethod
+    def wrap_interpreter(cls, f):
+        def interpret_statement(self, stmt, local_vars, allow_recursion, *args, **kwargs):
+            if cls.ENABLED and stmt.strip():
+                cls.write(stmt, level=allow_recursion)
+            try:
+                ret, should_ret = f(self, stmt, local_vars, allow_recursion, *args, **kwargs)
+            except Exception as e:
+                if cls.ENABLED:
+                    if isinstance(e, ExtractorError):
+                        e = e.orig_msg
+                    cls.write('=> Raises:', e, '<-|', stmt, level=allow_recursion)
+                raise
+            if cls.ENABLED and stmt.strip():
+                if should_ret or not repr(ret) == stmt:
+                    cls.write(['->', '=>'][should_ret], repr(ret), '<-|', stmt, level=allow_recursion)
+            return ret, should_ret
+        return interpret_statement
+
+
 class JSInterpreter(object):
     __named_object_counter = 0
 
@@ -307,8 +345,7 @@ class JSInterpreter(object):
     def __op_chars(cls):
         op_chars = set(';,[')
         for op in cls._all_operators():
-            for c in op[0]:
+            op_chars.update(op[0])
-                op_chars.add(c)
         return op_chars
 
     def _named_object(self, namespace, obj):
@@ -326,9 +363,8 @@ class JSInterpreter(object):
         # collections.Counter() is ~10% slower in both 2.7 and 3.9
         counters = dict((k, 0) for k in _MATCHING_PARENS.values())
         start, splits, pos, delim_len = 0, 0, 0, len(delim) - 1
-        in_quote, escaping, skipping = None, False, 0
+        in_quote, escaping, after_op, in_regex_char_group = None, False, True, False
-        after_op, in_regex_char_group = True, False
+        skipping = 0
-
         for idx, char in enumerate(expr):
             paren_delta = 0
             if not in_quote:
@@ -382,10 +418,12 @@ class JSInterpreter(object):
         return separated[0][1:].strip(), separated[1].strip()
 
     @staticmethod
-    def _all_operators():
+    def _all_operators(_cached=[]):
-        return itertools.chain(
+        if not _cached:
+            _cached.extend(itertools.chain(
                 # Ref: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence
-            _SC_OPERATORS, _LOG_OPERATORS, _COMP_OPERATORS, _OPERATORS)
+                _SC_OPERATORS, _LOG_OPERATORS, _COMP_OPERATORS, _OPERATORS))
+        return _cached
 
     def _operator(self, op, left_val, right_expr, expr, local_vars, allow_recursion):
         if op in ('||', '&&'):
@@ -416,7 +454,7 @@ class JSInterpreter(object):
         except Exception as e:
             if allow_undefined:
                 return JS_Undefined
-            raise self.Exception('Cannot get index {idx:.100}'.format(**locals()), expr=repr(obj), cause=e)
+            raise self.Exception('Cannot get index {idx!r:.100}'.format(**locals()), expr=repr(obj), cause=e)
 
     def _dump(self, obj, namespace):
         try:
@@ -438,6 +476,7 @@ class JSInterpreter(object):
     _FINALLY_RE = re.compile(r'finally\s*\{')
     _SWITCH_RE = re.compile(r'switch\s*\(')
 
+    @Debugger.wrap_interpreter
     def interpret_statement(self, stmt, local_vars, allow_recursion=100):
         if allow_recursion < 0:
             raise self.Exception('Recursion limit reached')
@@ -511,7 +550,6 @@ class JSInterpreter(object):
                 expr = self._dump(inner, local_vars) + outer
 
         if expr.startswith('('):
-
             m = re.match(r'\((?P<d>[a-z])%(?P<e>[a-z])\.length\+(?P=e)\.length\)%(?P=e)\.length', expr)
             if m:
                 # short-cut eval of frequently used `(d%e.length+e.length)%e.length`, worth ~6% on `pytest -k test_nsig`
@@ -693,7 +731,7 @@ class JSInterpreter(object):
                 (?P<op>{_OPERATOR_RE})?
                 =(?!=)(?P<expr>.*)$
             )|(?P<return>
-                (?!if|return|true|false|null|undefined)(?P<name>{_NAME_RE})$
+                (?!if|return|true|false|null|undefined|NaN|Infinity)(?P<name>{_NAME_RE})$
             )|(?P<indexing>
                 (?P<in>{_NAME_RE})\[(?P<idx>.+)\]$
             )|(?P<attribute>
@@ -727,11 +765,12 @@ class JSInterpreter(object):
             raise JS_Break()
         elif expr == 'continue':
             raise JS_Continue()
-
         elif expr == 'undefined':
             return JS_Undefined, should_return
         elif expr == 'NaN':
             return _NaN, should_return
+        elif expr == 'Infinity':
+            return _Infinity, should_return
 
         elif md.get('return'):
             return local_vars[m.group('name')], should_return
@@ -760,17 +799,27 @@ class JSInterpreter(object):
             right_expr = separated.pop()
             # handle operators that are both unary and binary, minimal BODMAS
             if op in ('+', '-'):
+                # simplify/adjust consecutive instances of these operators
                 undone = 0
                 while len(separated) > 1 and not separated[-1].strip():
                     undone += 1
                     separated.pop()
                 if op == '-' and undone % 2 != 0:
                     right_expr = op + right_expr
+                elif op == '+':
+                    while len(separated) > 1 and separated[-1].strip() in self.OP_CHARS:
+                        right_expr = separated.pop() + right_expr
+                # hanging op at end of left => unary + (strip) or - (push right)
                 left_val = separated[-1]
                 for dm_op in ('*', '%', '/', '**'):
                     bodmas = tuple(self._separate(left_val, dm_op, skip_delims=skip_delim))
                     if len(bodmas) > 1 and not bodmas[-1].strip():
                         expr = op.join(separated) + op + right_expr
+                        if len(separated) > 1:
+                            separated.pop()
+                            right_expr = op.join((left_val, right_expr))
+                        else:
+                            separated = [op.join((left_val, right_expr))]
                             right_expr = None
                         break
                 if right_expr is None:
@@ -797,6 +846,8 @@ class JSInterpreter(object):
 
             def eval_method():
                 if (variable, member) == ('console', 'debug'):
+                    if Debugger.ENABLED:
+                        Debugger.write(self.interpret_expression('[{}]'.format(arg_str), local_vars, allow_recursion))
                     return
                 types = {
                     'String': compat_str,

youtube_dl/utils.py

@@ -2406,7 +2406,7 @@ class ExtractorError(YoutubeDLError):
         """ tb, if given, is the original traceback (so that it can be printed out).
         If expected is set, this is a normal error message and most likely not a bug in youtube-dl.
         """
-
+        self.orig_msg = msg
         if sys.exc_info()[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError):
             expected = True
         if video_id is not None: