From 197224b7a4e37a6581bf1a0da18d0f67ea61a476 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Mon, 9 Oct 2017 23:50:53 +0700
Subject: [PATCH] Fix some regexes

---
 youtube_dl/extractor/aenetworks.py         | 2 +-
 youtube_dl/extractor/appletrailers.py      | 4 ++--
 youtube_dl/extractor/ard.py                | 2 +-
 youtube_dl/extractor/bbc.py                | 2 +-
 youtube_dl/extractor/dailymotion.py        | 2 +-
 youtube_dl/extractor/deezer.py             | 2 +-
 youtube_dl/extractor/freespeech.py         | 2 +-
 youtube_dl/extractor/generic.py            | 2 +-
 youtube_dl/extractor/googleplus.py         | 2 +-
 youtube_dl/extractor/hrti.py               | 2 +-
 youtube_dl/extractor/ign.py                | 2 +-
 youtube_dl/extractor/infoq.py              | 6 +++---
 youtube_dl/extractor/jeuxvideo.py          | 2 +-
 youtube_dl/extractor/livestream.py         | 2 +-
 youtube_dl/extractor/makertv.py            | 2 +-
 youtube_dl/extractor/mangomolo.py          | 2 +-
 youtube_dl/extractor/meipai.py             | 2 +-
 youtube_dl/extractor/mtv.py                | 2 +-
 youtube_dl/extractor/myvideo.py            | 2 +-
 youtube_dl/extractor/nationalgeographic.py | 2 +-
 youtube_dl/extractor/naver.py              | 2 +-
 youtube_dl/extractor/npo.py                | 2 +-
 youtube_dl/extractor/ruhd.py               | 2 +-
 youtube_dl/extractor/stanfordoc.py         | 4 ++--
 youtube_dl/extractor/theplatform.py        | 2 +-
 youtube_dl/extractor/thisav.py             | 4 ++--
 youtube_dl/extractor/twitter.py            | 2 +-
 youtube_dl/extractor/vice.py               | 2 +-
 youtube_dl/extractor/videopremium.py       | 2 +-
 youtube_dl/extractor/youtube.py            | 2 +-
 30 files changed, 35 insertions(+), 35 deletions(-)

diff --git a/youtube_dl/extractor/aenetworks.py b/youtube_dl/extractor/aenetworks.py
index 2dcdba9d2..da1b566c2 100644
--- a/youtube_dl/extractor/aenetworks.py
+++ b/youtube_dl/extractor/aenetworks.py
@@ -131,7 +131,7 @@ class AENetworksIE(AENetworksBaseIE):
              r'data-media-url=(["\'])(?P<url>(?:(?!\1).)+?)\1'],
             webpage, 'video url', group='url')
         theplatform_metadata = self._download_theplatform_metadata(self._search_regex(
-            r'https?://link.theplatform.com/s/([^?]+)', media_url, 'theplatform_path'), video_id)
+            r'https?://link\.theplatform\.com/s/([^?]+)', media_url, 'theplatform_path'), video_id)
         info = self._parse_theplatform_metadata(theplatform_metadata)
         if theplatform_metadata.get('AETN$isBehindWall'):
             requestor_id = self._DOMAIN_TO_REQUESTOR_ID[domain]
diff --git a/youtube_dl/extractor/appletrailers.py b/youtube_dl/extractor/appletrailers.py
index b45b431e1..a9ef733e0 100644
--- a/youtube_dl/extractor/appletrailers.py
+++ b/youtube_dl/extractor/appletrailers.py
@@ -117,7 +117,7 @@ class AppleTrailersIE(InfoExtractor):
                             continue
                         formats.append({
                             'format_id': '%s-%s' % (version, size),
-                            'url': re.sub(r'_(\d+p.mov)', r'_h\1', src),
+                            'url': re.sub(r'_(\d+p\.mov)', r'_h\1', src),
                             'width': int_or_none(size_data.get('width')),
                             'height': int_or_none(size_data.get('height')),
                             'language': version[:2],
@@ -179,7 +179,7 @@ class AppleTrailersIE(InfoExtractor):
             formats = []
             for format in settings['metadata']['sizes']:
                 # The src is a file pointing to the real video file
-                format_url = re.sub(r'_(\d*p.mov)', r'_h\1', format['src'])
+                format_url = re.sub(r'_(\d*p\.mov)', r'_h\1', format['src'])
                 formats.append({
                     'url': format_url,
                     'format': format['type'],
diff --git a/youtube_dl/extractor/ard.py b/youtube_dl/extractor/ard.py
index 3f248b147..915f8862e 100644
--- a/youtube_dl/extractor/ard.py
+++ b/youtube_dl/extractor/ard.py
@@ -195,7 +195,7 @@ class ARDMediathekIE(InfoExtractor):
 
         title = self._html_search_regex(
             [r'<h1(?:\s+class="boxTopHeadline")?>(.*?)</h1>',
-             r'<meta name="dcterms.title" content="(.*?)"/>',
+             r'<meta name="dcterms\.title" content="(.*?)"/>',
              r'<h4 class="headline">(.*?)</h4>'],
             webpage, 'title')
         description = self._html_search_meta(
diff --git a/youtube_dl/extractor/bbc.py b/youtube_dl/extractor/bbc.py
index 8b20c03d6..5525f7c9b 100644
--- a/youtube_dl/extractor/bbc.py
+++ b/youtube_dl/extractor/bbc.py
@@ -386,7 +386,7 @@ class BBCCoUkIE(InfoExtractor):
                             m3u8_id=format_id, fatal=False))
                         if re.search(self._USP_RE, href):
                             usp_formats = self._extract_m3u8_formats(
-                                re.sub(self._USP_RE, r'/\1.ism/\1.m3u8', href),
+                                re.sub(self._USP_RE, r'/\1\.ism/\1\.m3u8', href),
                                 programme_id, ext='mp4', entry_protocol='m3u8_native',
                                 m3u8_id=format_id, fatal=False)
                             for f in usp_formats:
diff --git a/youtube_dl/extractor/dailymotion.py b/youtube_dl/extractor/dailymotion.py
index e9d0dd19c..21a2d0239 100644
--- a/youtube_dl/extractor/dailymotion.py
+++ b/youtube_dl/extractor/dailymotion.py
@@ -235,7 +235,7 @@ class DailymotionIE(DailymotionBaseInfoExtractor):
 
         # vevo embed
         vevo_id = self._search_regex(
-            r'<link rel="video_src" href="[^"]*?vevo.com[^"]*?video=(?P<id>[\w]*)',
+            r'<link rel="video_src" href="[^"]*?vevo\.com[^"]*?video=(?P<id>[\w]*)',
             webpage, 'vevo embed', default=None)
         if vevo_id:
             return self.url_result('vevo:%s' % vevo_id, 'Vevo')
diff --git a/youtube_dl/extractor/deezer.py b/youtube_dl/extractor/deezer.py
index ec87b94db..a38b2683d 100644
--- a/youtube_dl/extractor/deezer.py
+++ b/youtube_dl/extractor/deezer.py
@@ -19,7 +19,7 @@ class DeezerPlaylistIE(InfoExtractor):
             'id': '176747451',
             'title': 'Best!',
             'uploader': 'Anonymous',
-            'thumbnail': r're:^https?://cdn-images.deezer.com/images/cover/.*\.jpg$',
+            'thumbnail': r're:^https?://cdn-images\.deezer\.com/images/cover/.*\.jpg$',
         },
         'playlist_count': 30,
         'skip': 'Only available in .de',
diff --git a/youtube_dl/extractor/freespeech.py b/youtube_dl/extractor/freespeech.py
index 0a70ca763..7fa271b51 100644
--- a/youtube_dl/extractor/freespeech.py
+++ b/youtube_dl/extractor/freespeech.py
@@ -27,7 +27,7 @@ class FreespeechIE(InfoExtractor):
         mobj = re.match(self._VALID_URL, url)
         title = mobj.group('title')
         webpage = self._download_webpage(url, title)
-        info_json = self._search_regex(r'jQuery.extend\(Drupal.settings, ({.*?})\);', webpage, 'info')
+        info_json = self._search_regex(r'jQuery\.extend\(Drupal\.settings, ({.*?})\);', webpage, 'info')
         info = json.loads(info_json)
 
         return {
diff --git a/youtube_dl/extractor/generic.py b/youtube_dl/extractor/generic.py
index 1721a3dbd..68b633839 100644
--- a/youtube_dl/extractor/generic.py
+++ b/youtube_dl/extractor/generic.py
@@ -2206,7 +2206,7 @@ class GenericIE(InfoExtractor):
         # And then there are the jokers who advertise that they use RTA,
         # but actually don't.
         AGE_LIMIT_MARKERS = [
-            r'Proudly Labeled <a href="http://www.rtalabel.org/" title="Restricted to Adults">RTA</a>',
+            r'Proudly Labeled <a href="http://www\.rtalabel\.org/" title="Restricted to Adults">RTA</a>',
         ]
         if any(re.search(marker, webpage) for marker in AGE_LIMIT_MARKERS):
             age_limit = 18
diff --git a/youtube_dl/extractor/googleplus.py b/youtube_dl/extractor/googleplus.py
index 427499b11..6b927bb44 100644
--- a/youtube_dl/extractor/googleplus.py
+++ b/youtube_dl/extractor/googleplus.py
@@ -61,7 +61,7 @@ class GooglePlusIE(InfoExtractor):
             'width': int(width),
             'height': int(height),
         } for width, height, video_url in re.findall(
-            r'\d+,(\d+),(\d+),"(https?://[^.]+\.googleusercontent.com.*?)"', webpage)]
+            r'\d+,(\d+),(\d+),"(https?://[^.]+\.googleusercontent\.com.*?)"', webpage)]
         self._sort_formats(formats)
 
         return {
diff --git a/youtube_dl/extractor/hrti.py b/youtube_dl/extractor/hrti.py
index 4f0369433..7cef5f6ce 100644
--- a/youtube_dl/extractor/hrti.py
+++ b/youtube_dl/extractor/hrti.py
@@ -173,7 +173,7 @@ class HRTiIE(HRTiBaseIE):
 
 
 class HRTiPlaylistIE(HRTiBaseIE):
-    _VALID_URL = r'https?://hrti.hrt.hr/#/video/list/category/(?P<id>[0-9]+)/(?P<display_id>[^/]+)?'
+    _VALID_URL = r'https?://hrti\.hrt\.hr/#/video/list/category/(?P<id>[0-9]+)/(?P<display_id>[^/]+)?'
     _TESTS = [{
         'url': 'https://hrti.hrt.hr/#/video/list/category/212/ekumena',
         'info_dict': {
diff --git a/youtube_dl/extractor/ign.py b/youtube_dl/extractor/ign.py
index c1367cf51..a96ea8010 100644
--- a/youtube_dl/extractor/ign.py
+++ b/youtube_dl/extractor/ign.py
@@ -203,7 +203,7 @@ class PCMagIE(IGNIE):
     _VALID_URL = r'https?://(?:www\.)?pcmag\.com/(?P<type>videos|article2)(/.+)?/(?P<name_or_id>.+)'
     IE_NAME = 'pcmag'
 
-    _EMBED_RE = r'iframe.setAttribute\("src",\s*__util.objToUrlString\("http://widgets\.ign\.com/video/embed/content.html?[^"]*url=([^"]+)["&]'
+    _EMBED_RE = r'iframe\.setAttribute\("src",\s*__util.objToUrlString\("http://widgets\.ign\.com/video/embed/content\.html?[^"]*url=([^"]+)["&]'
 
     _TESTS = [{
         'url': 'http://www.pcmag.com/videos/2015/01/06/010615-whats-new-now-is-gogo-snooping-on-your-data',
diff --git a/youtube_dl/extractor/infoq.py b/youtube_dl/extractor/infoq.py
index fe425e786..57c9b0cc4 100644
--- a/youtube_dl/extractor/infoq.py
+++ b/youtube_dl/extractor/infoq.py
@@ -69,9 +69,9 @@ class InfoQIE(BokeCCBaseIE):
         }]
 
     def _extract_cookies(self, webpage):
-        policy = self._search_regex(r'InfoQConstants.scp\s*=\s*\'([^\']+)\'', webpage, 'policy')
-        signature = self._search_regex(r'InfoQConstants.scs\s*=\s*\'([^\']+)\'', webpage, 'signature')
-        key_pair_id = self._search_regex(r'InfoQConstants.sck\s*=\s*\'([^\']+)\'', webpage, 'key-pair-id')
+        policy = self._search_regex(r'InfoQConstants\.scp\s*=\s*\'([^\']+)\'', webpage, 'policy')
+        signature = self._search_regex(r'InfoQConstants\.scs\s*=\s*\'([^\']+)\'', webpage, 'signature')
+        key_pair_id = self._search_regex(r'InfoQConstants\.sck\s*=\s*\'([^\']+)\'', webpage, 'key-pair-id')
         return 'CloudFront-Policy=%s; CloudFront-Signature=%s; CloudFront-Key-Pair-Id=%s' % (
             policy, signature, key_pair_id)
 
diff --git a/youtube_dl/extractor/jeuxvideo.py b/youtube_dl/extractor/jeuxvideo.py
index 1a4227f6b..e9f4ed738 100644
--- a/youtube_dl/extractor/jeuxvideo.py
+++ b/youtube_dl/extractor/jeuxvideo.py
@@ -30,7 +30,7 @@ class JeuxVideoIE(InfoExtractor):
         webpage = self._download_webpage(url, title)
         title = self._html_search_meta('name', webpage) or self._og_search_title(webpage)
         config_url = self._html_search_regex(
-            r'data-src(?:set-video)?="(/contenu/medias/video.php.*?)"',
+            r'data-src(?:set-video)?="(/contenu/medias/video\.php.*?)"',
             webpage, 'config URL')
         config_url = 'http://www.jeuxvideo.com' + config_url
 
diff --git a/youtube_dl/extractor/livestream.py b/youtube_dl/extractor/livestream.py
index 7f946c6ed..317ebbc4e 100644
--- a/youtube_dl/extractor/livestream.py
+++ b/youtube_dl/extractor/livestream.py
@@ -338,7 +338,7 @@ class LivestreamOriginalIE(InfoExtractor):
                 info = {
                     'title': self._og_search_title(webpage),
                     'description': self._og_search_description(webpage),
-                    'thumbnail': self._search_regex(r'channelLogo.src\s*=\s*"([^"]+)"', webpage, 'thumbnail', None),
+                    'thumbnail': self._search_regex(r'channelLogo\.src\s*=\s*"([^"]+)"', webpage, 'thumbnail', None),
                 }
             video_data = self._download_json(stream_url, content_id)
             is_live = video_data.get('isLive')
diff --git a/youtube_dl/extractor/makertv.py b/youtube_dl/extractor/makertv.py
index 3c34d4604..8eda69cfc 100644
--- a/youtube_dl/extractor/makertv.py
+++ b/youtube_dl/extractor/makertv.py
@@ -5,7 +5,7 @@ from .common import InfoExtractor
 
 
 class MakerTVIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:(?:www\.)?maker\.tv/(?:[^/]+/)*video|makerplayer.com/embed/maker)/(?P<id>[a-zA-Z0-9]{12})'
+    _VALID_URL = r'https?://(?:(?:www\.)?maker\.tv/(?:[^/]+/)*video|makerplayer\.com/embed/maker)/(?P<id>[a-zA-Z0-9]{12})'
     _TEST = {
         'url': 'http://www.maker.tv/video/Fh3QgymL9gsc',
         'md5': 'ca237a53a8eb20b6dc5bd60564d4ab3e',
diff --git a/youtube_dl/extractor/mangomolo.py b/youtube_dl/extractor/mangomolo.py
index 1885ac7df..dbd761a67 100644
--- a/youtube_dl/extractor/mangomolo.py
+++ b/youtube_dl/extractor/mangomolo.py
@@ -22,7 +22,7 @@ class MangomoloBaseIE(InfoExtractor):
 
         format_url = self._html_search_regex(
             [
-                r'file\s*:\s*"(https?://[^"]+?/playlist.m3u8)',
+                r'file\s*:\s*"(https?://[^"]+?/playlist\.m3u8)',
                 r'<a[^>]+href="(rtsp://[^"]+)"'
             ], webpage, 'format url')
         formats = self._extract_wowza_formats(
diff --git a/youtube_dl/extractor/meipai.py b/youtube_dl/extractor/meipai.py
index c8eacb4f4..2445b8b39 100644
--- a/youtube_dl/extractor/meipai.py
+++ b/youtube_dl/extractor/meipai.py
@@ -11,7 +11,7 @@ from ..utils import (
 
 class MeipaiIE(InfoExtractor):
     IE_DESC = '美拍'
-    _VALID_URL = r'https?://(?:www\.)?meipai.com/media/(?P<id>[0-9]+)'
+    _VALID_URL = r'https?://(?:www\.)?meipai\.com/media/(?P<id>[0-9]+)'
     _TESTS = [{
         # regular uploaded video
         'url': 'http://www.meipai.com/media/531697625',
diff --git a/youtube_dl/extractor/mtv.py b/youtube_dl/extractor/mtv.py
index 25af5ddfd..1154a3536 100644
--- a/youtube_dl/extractor/mtv.py
+++ b/youtube_dl/extractor/mtv.py
@@ -258,7 +258,7 @@ class MTVServicesInfoExtractor(InfoExtractor):
 
         if mgid is None or ':' not in mgid:
             mgid = self._search_regex(
-                [r'data-mgid="(.*?)"', r'swfobject.embedSWF\(".*?(mgid:.*?)"'],
+                [r'data-mgid="(.*?)"', r'swfobject\.embedSWF\(".*?(mgid:.*?)"'],
                 webpage, 'mgid', default=None)
 
         if not mgid:
diff --git a/youtube_dl/extractor/myvideo.py b/youtube_dl/extractor/myvideo.py
index 6bb64eb63..367e811db 100644
--- a/youtube_dl/extractor/myvideo.py
+++ b/youtube_dl/extractor/myvideo.py
@@ -160,7 +160,7 @@ class MyVideoIE(InfoExtractor):
         else:
             video_playpath = ''
 
-        video_swfobj = self._search_regex(r'swfobject.embedSWF\(\'(.+?)\'', webpage, 'swfobj')
+        video_swfobj = self._search_regex(r'swfobject\.embedSWF\(\'(.+?)\'', webpage, 'swfobj')
         video_swfobj = compat_urllib_parse_unquote(video_swfobj)
 
         video_title = self._html_search_regex("<h1(?: class='globalHd')?>(.*?)</h1>",
diff --git a/youtube_dl/extractor/nationalgeographic.py b/youtube_dl/extractor/nationalgeographic.py
index b91d86528..9e8d28f48 100644
--- a/youtube_dl/extractor/nationalgeographic.py
+++ b/youtube_dl/extractor/nationalgeographic.py
@@ -111,7 +111,7 @@ class NationalGeographicIE(ThePlatformIE, AdobePassIE):
         release_url = self._search_regex(
             r'video_auth_playlist_url\s*=\s*"([^"]+)"',
             webpage, 'release url')
-        theplatform_path = self._search_regex(r'https?://link.theplatform.com/s/([^?]+)', release_url, 'theplatform path')
+        theplatform_path = self._search_regex(r'https?://link\.theplatform\.com/s/([^?]+)', release_url, 'theplatform path')
         video_id = theplatform_path.split('/')[-1]
         query = {
             'mbr': 'true',
diff --git a/youtube_dl/extractor/naver.py b/youtube_dl/extractor/naver.py
index e8131333f..2047d4402 100644
--- a/youtube_dl/extractor/naver.py
+++ b/youtube_dl/extractor/naver.py
@@ -43,7 +43,7 @@ class NaverIE(InfoExtractor):
         video_id = self._match_id(url)
         webpage = self._download_webpage(url, video_id)
 
-        m_id = re.search(r'var rmcPlayer = new nhn.rmcnmv.RMCVideoPlayer\("(.+?)", "(.+?)"',
+        m_id = re.search(r'var rmcPlayer = new nhn\.rmcnmv\.RMCVideoPlayer\("(.+?)", "(.+?)"',
                          webpage)
         if m_id is None:
             error = self._html_search_regex(
diff --git a/youtube_dl/extractor/npo.py b/youtube_dl/extractor/npo.py
index fa4ef20c5..b8fe24407 100644
--- a/youtube_dl/extractor/npo.py
+++ b/youtube_dl/extractor/npo.py
@@ -469,7 +469,7 @@ class SchoolTVIE(NPODataMidEmbedIE):
 
 class HetKlokhuisIE(NPODataMidEmbedIE):
     IE_NAME = 'hetklokhuis'
-    _VALID_URL = r'https?://(?:www\.)?hetklokhuis.nl/[^/]+/\d+/(?P<id>[^/?#&]+)'
+    _VALID_URL = r'https?://(?:www\.)?hetklokhuis\.nl/[^/]+/\d+/(?P<id>[^/?#&]+)'
 
     _TEST = {
         'url': 'http://hetklokhuis.nl/tv-uitzending/3471/Zwaartekrachtsgolven',
diff --git a/youtube_dl/extractor/ruhd.py b/youtube_dl/extractor/ruhd.py
index 2b830cf47..3c8053a26 100644
--- a/youtube_dl/extractor/ruhd.py
+++ b/youtube_dl/extractor/ruhd.py
@@ -25,7 +25,7 @@ class RUHDIE(InfoExtractor):
         video_url = self._html_search_regex(
             r'<param name="src" value="([^"]+)"', webpage, 'video url')
         title = self._html_search_regex(
-            r'<title>([^<]+)&nbsp;&nbsp; RUHD.ru - Видео Высокого качества №1 в России!</title>',
+            r'<title>([^<]+)&nbsp;&nbsp; RUHD\.ru - Видео Высокого качества №1 в России!</title>',
             webpage, 'title')
         description = self._html_search_regex(
             r'(?s)<div id="longdesc">(.+?)<span id="showlink">',
diff --git a/youtube_dl/extractor/stanfordoc.py b/youtube_dl/extractor/stanfordoc.py
index cce65fb10..ae3dd1380 100644
--- a/youtube_dl/extractor/stanfordoc.py
+++ b/youtube_dl/extractor/stanfordoc.py
@@ -66,7 +66,7 @@ class StanfordOpenClassroomIE(InfoExtractor):
                 r'(?s)<description>([^<]+)</description>',
                 coursepage, 'description', fatal=False)
 
-            links = orderedSet(re.findall(r'<a href="(VideoPage.php\?[^"]+)">', coursepage))
+            links = orderedSet(re.findall(r'<a href="(VideoPage\.php\?[^"]+)">', coursepage))
             info['entries'] = [self.url_result(
                 'http://openclassroom.stanford.edu/MainFolder/%s' % unescapeHTML(l)
             ) for l in links]
@@ -84,7 +84,7 @@ class StanfordOpenClassroomIE(InfoExtractor):
             rootpage = self._download_webpage(rootURL, info['id'],
                                               errnote='Unable to download course info page')
 
-            links = orderedSet(re.findall(r'<a href="(CoursePage.php\?[^"]+)">', rootpage))
+            links = orderedSet(re.findall(r'<a href="(CoursePage\.php\?[^"]+)">', rootpage))
             info['entries'] = [self.url_result(
                 'http://openclassroom.stanford.edu/MainFolder/%s' % unescapeHTML(l)
             ) for l in links]
diff --git a/youtube_dl/extractor/theplatform.py b/youtube_dl/extractor/theplatform.py
index de236bbba..b1a985ff6 100644
--- a/youtube_dl/extractor/theplatform.py
+++ b/youtube_dl/extractor/theplatform.py
@@ -216,7 +216,7 @@ class ThePlatformIE(ThePlatformBaseIE, AdobePassIE):
         def hex_to_bytes(hex):
             return binascii.a2b_hex(hex.encode('ascii'))
 
-        relative_path = re.match(r'https?://link.theplatform.com/s/([^?]+)', url).group(1)
+        relative_path = re.match(r'https?://link\.theplatform\.com/s/([^?]+)', url).group(1)
         clear_text = hex_to_bytes(flags + expiration_date + str_to_hex(relative_path))
         checksum = hmac.new(sig_key.encode('ascii'), clear_text, hashlib.sha1).hexdigest()
         sig = flags + expiration_date + checksum + str_to_hex(sig_secret)
diff --git a/youtube_dl/extractor/thisav.py b/youtube_dl/extractor/thisav.py
index 33683b139..dc3dd03c8 100644
--- a/youtube_dl/extractor/thisav.py
+++ b/youtube_dl/extractor/thisav.py
@@ -57,10 +57,10 @@ class ThisAVIE(InfoExtractor):
                 info_dict = self._extract_jwplayer_data(
                     webpage, video_id, require_title=False)
         uploader = self._html_search_regex(
-            r': <a href="http://www.thisav.com/user/[0-9]+/(?:[^"]+)">([^<]+)</a>',
+            r': <a href="http://www\.thisav\.com/user/[0-9]+/(?:[^"]+)">([^<]+)</a>',
             webpage, 'uploader name', fatal=False)
         uploader_id = self._html_search_regex(
-            r': <a href="http://www.thisav.com/user/[0-9]+/([^"]+)">(?:[^<]+)</a>',
+            r': <a href="http://www\.thisav\.com/user/[0-9]+/([^"]+)">(?:[^<]+)</a>',
             webpage, 'uploader id', fatal=False)
 
         info_dict.update({
diff --git a/youtube_dl/extractor/twitter.py b/youtube_dl/extractor/twitter.py
index 0df3ad7c7..1b0b96371 100644
--- a/youtube_dl/extractor/twitter.py
+++ b/youtube_dl/extractor/twitter.py
@@ -174,7 +174,7 @@ class TwitterCardIE(TwitterBaseIE):
         webpage = self._download_webpage(url, video_id)
 
         iframe_url = self._html_search_regex(
-            r'<iframe[^>]+src="((?:https?:)?//(?:www.youtube.com/embed/[^"]+|(?:www\.)?vine\.co/v/\w+/card))"',
+            r'<iframe[^>]+src="((?:https?:)?//(?:www\.youtube\.com/embed/[^"]+|(?:www\.)?vine\.co/v/\w+/card))"',
             webpage, 'video iframe', default=None)
         if iframe_url:
             return self.url_result(iframe_url)
diff --git a/youtube_dl/extractor/vice.py b/youtube_dl/extractor/vice.py
index b8b8bf979..bcc28693a 100644
--- a/youtube_dl/extractor/vice.py
+++ b/youtube_dl/extractor/vice.py
@@ -198,7 +198,7 @@ class ViceShowIE(InfoExtractor):
 
 class ViceArticleIE(InfoExtractor):
     IE_NAME = 'vice:article'
-    _VALID_URL = r'https://www.vice.com/[^/]+/article/(?P<id>[^?#]+)'
+    _VALID_URL = r'https://www\.vice\.com/[^/]+/article/(?P<id>[^?#]+)'
 
     _TESTS = [{
         'url': 'https://www.vice.com/en_us/article/on-set-with-the-woman-making-mormon-porn-in-utah',
diff --git a/youtube_dl/extractor/videopremium.py b/youtube_dl/extractor/videopremium.py
index 5de8273c3..cf690d7b0 100644
--- a/youtube_dl/extractor/videopremium.py
+++ b/youtube_dl/extractor/videopremium.py
@@ -26,7 +26,7 @@ class VideoPremiumIE(InfoExtractor):
         webpage_url = 'http://videopremium.tv/' + video_id
         webpage = self._download_webpage(webpage_url, video_id)
 
-        if re.match(r'^<html><head><script[^>]*>window.location\s*=', webpage):
+        if re.match(r'^<html><head><script[^>]*>window\.location\s*=', webpage):
             # Download again, we need a cookie
             webpage = self._download_webpage(
                 webpage_url, video_id,
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index edd8713b7..54f5d7279 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -1683,7 +1683,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         video_uploader_id = None
         video_uploader_url = None
         mobj = re.search(
-            r'<link itemprop="url" href="(?P<uploader_url>https?://www.youtube.com/(?:user|channel)/(?P<uploader_id>[^"]+))">',
+            r'<link itemprop="url" href="(?P<uploader_url>https?://www\.youtube\.com/(?:user|channel)/(?P<uploader_id>[^"]+))">',
             video_webpage)
         if mobj is not None:
             video_uploader_id = mobj.group('uploader_id')
-- 
2.22.2