X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;ds=sidebyside;f=youtube_dl%2Futils.py;h=1081a93680c7dc1d054748bcffd68cca50cf6b28;hb=696d49815e082402be65c4f120397b4695477279;hp=3ecd798d74217011920135199ee59c76d58852c0;hpb=c4f731262dbee921147b94aac5035b5d9ec75502;p=youtube-dl

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 3ecd798d7..1081a9368 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -242,8 +242,8 @@ else:
 if sys.version_info >= (2,7):
     def find_xpath_attr(node, xpath, key, val):
         """ Find the xpath xpath[@key=val] """
-        assert re.match(r'^[a-zA-Z]+$', key)
-        assert re.match(r'^[a-zA-Z0-9@\s:._]*$', val)
+        assert re.match(r'^[a-zA-Z-]+$', key)
+        assert re.match(r'^[a-zA-Z0-9@\s:._-]*$', val)
         expr = xpath + u"[@%s='%s']" % (key, val)
         return node.find(expr)
 else:
@@ -827,6 +827,7 @@ def unified_strdate(date_str):
         '%b %dnd %Y %I:%M%p',
         '%b %dth %Y %I:%M%p',
         '%Y-%m-%d',
+        '%Y/%m/%d',
         '%d.%m.%Y',
         '%d/%m/%Y',
         '%Y/%m/%d %H:%M:%S',
@@ -852,6 +853,8 @@ def unified_strdate(date_str):
     return upload_date
 
 def determine_ext(url, default_ext=u'unknown_video'):
+    if url is None:
+        return default_ext
     guess = url.partition(u'?')[0].rpartition(u'.')[2]
     if re.match(r'^[A-Za-z0-9]+$', guess):
         return guess
@@ -1271,9 +1274,15 @@ def int_or_none(v, scale=1, default=None, get_attr=None, invscale=1):
     if get_attr:
         if v is not None:
             v = getattr(v, get_attr, None)
+    if v == '':
+        v = None
     return default if v is None else (int(v) * invscale // scale)
 
 
+def str_or_none(v, default=None):
+    return default if v is None else compat_str(v)
+
+
 def str_to_int(int_str):
     if int_str is None:
         return None