fixed language tag

README.rst

@@ -90,13 +90,13 @@ Download by character name:
 
 .. code-block:: bash
 
-    nhentai --character kuro von einsbern --download
+    nhentai --character "kuro von einsbern" --download
 
 Download by parody name:
 
 .. code-block:: bash
 
-    nhentai --parody the idolmaster --download
+    nhentai --parody "the idolmaster" --download
 
 Download by group name:
 
@@ -108,7 +108,7 @@ Download using multiple tags (--tag, --character, --paordy and --group supported
 
 .. code-block:: bash
 
-    nhentai --tag lolicon, teasing --artist tamano kedama, atte nanakusa
+    nhentai --tag "lolicon, teasing" --artist "tamano kedama, atte nanakusa"
 
 Download your favorites with delay:
 

nhentai/command.py

@@ -71,7 +71,7 @@ def main():
             doujinshi_ids = [i['id'] for i in doujinshis]
 
     elif options.language:
-        doujinshis = tag_parser(options.group, max_page=options.max_page, index=5)
+        doujinshis = tag_parser(options.language, max_page=options.max_page, index=5)
         print_doujinshi(doujinshis)
         if options.is_download and doujinshis:
             doujinshi_ids = [i['id'] for i in doujinshis]

nhentai/constant.py

@@ -21,7 +21,8 @@ TAG_URL = ['%s/tag' % BASE_URL,
            '%s/artist' % BASE_URL,
            '%s/character' % BASE_URL,
            '%s/parody' % BASE_URL,
-           '%s/group' % BASE_URL]
+           '%s/group' % BASE_URL,
+           '%s/language' % BASE_URL]
 
 TAG_API_URL = '%s/api/galleries/tagged' % BASE_URL
 LOGIN_URL = '%s/login/' % BASE_URL

nhentai/parser.py

@@ -198,7 +198,7 @@ def tag_parser(tag_name, sorting='date', max_page=1, index=0):
     if ',' in tag_name:
         tag_name = [i.strip().replace(' ', '-') for i in tag_name.split(',')]
     else:
-        tag_name = tag_name.replace(' ', '-')
+        tag_name = tag_name.strip().replace(' ', '-')
     if sorting == 'date':
         sorting = ''