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-rw-r--r--youtube_dl/utils.py12
1 files changed, 10 insertions, 2 deletions
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 36d5b6c0f..3498697b6 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -310,9 +310,17 @@ def get_element_by_id(id, html):
return get_element_by_attribute('id', id, html)
-def get_element_by_attribute(attribute, value, html):
+def get_element_by_class(class_name, html):
+ return get_element_by_attribute(
+ 'class', r'[^\'"]*\b%s\b[^\'"]*' % re.escape(class_name),
+ html, escape_value=False)
+
+
+def get_element_by_attribute(attribute, value, html, escape_value=True):
"""Return the content of the tag with the specified attribute in the passed HTML document"""
+ value = re.escape(value) if escape_value else value
+
m = re.search(r'''(?xs)
<([a-zA-Z0-9:._-]+)
(?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'))*?
@@ -321,7 +329,7 @@ def get_element_by_attribute(attribute, value, html):
\s*>
(?P<content>.*?)
</\1>
- ''' % (re.escape(attribute), re.escape(value)), html)
+ ''' % (re.escape(attribute), value), html)
if not m:
return None