Improve some id regexes

youtube_dl/extractor/canvas.py

@@ -71,7 +71,7 @@ class CanvasIE(InfoExtractor):
             webpage)).strip()
 
         video_id = self._html_search_regex(
-            r'data-video=(["\'])(?P<id>.+?)\1', webpage, 'video id', group='id')
+            r'data-video=(["\'])(?P<id>(?:(?!\1).)+)\1', webpage, 'video id', group='id')
 
         data = self._download_json(
             'https://mediazone.vrt.be/api/v1/%s/assets/%s'

youtube_dl/extractor/nfl.py

@@ -165,7 +165,7 @@ class NFLIE(InfoExtractor):
             group='config'))
         # For articles, the id in the url is not the video id
         video_id = self._search_regex(
-            r'(?:<nflcs:avplayer[^>]+data-content[Ii]d\s*=\s*|content[Ii]d\s*:\s*)(["\'])(?P<id>.+?)\1',
+            r'(?:<nflcs:avplayer[^>]+data-content[Ii]d\s*=\s*|content[Ii]d\s*:\s*)(["\'])(?P<id>(?:(?!\1).)+)\1',
             webpage, 'video id', default=video_id, group='id')
         config = self._download_json(config_url, video_id, 'Downloading player config')
         url_template = NFLIE.prepend_host(

youtube_dl/extractor/npo.py

@@ -429,7 +429,7 @@ class SchoolTVIE(InfoExtractor):
         display_id = self._match_id(url)
         webpage = self._download_webpage(url, display_id)
         video_id = self._search_regex(
-            r'data-mid=(["\'])(?P<id>.+?)\1', webpage, 'video_id', group='id')
+            r'data-mid=(["\'])(?P<id>(?:(?!\1).)+)\1', webpage, 'video_id', group='id')
         return {
             '_type': 'url_transparent',
             'ie_key': 'NPO',