add doujinshi folder formatter

README.rst

@@ -79,6 +79,19 @@ Download your favorites with delay:
 
     nhentai --favorites --download --delay 1
 
+Format output doujinshi folder name:
+
+.. code-block:: bash
+    nhentai --id 261100 --format '[%i]%s'
+
+
+Supported doujinshi folder formatter:
+
+- %i: Doujinshi id
+- %t: Doujinshi name
+- %s: Doujinshi subtitle (translated name)
+- %a: Doujinshi authors' name
+
 
 Other options:
 

nhentai/cmdline.py

@@ -72,7 +72,7 @@ def cmd_parser():
                       help='uses a proxy, for example: http://127.0.0.1:1080')
     parser.add_option('--file',  '-f', type='string', dest='file', action='store', help='read gallery IDs from file.')
     parser.add_option('--format', type='string', dest='name_format', action='store',
-                      help='format the saved folder name', default='[%i][%n]')
+                      help='format the saved folder name', default='[%i][%a][%t]')
 
     # generate options
     parser.add_option('--html', dest='html_viewer', action='store_true',

nhentai/command.py

@@ -48,7 +48,7 @@ def main():
             if options.delay:
                 time.sleep(options.delay)
             doujinshi_info = doujinshi_parser(id_)
-            doujinshi_list.append(Doujinshi(**doujinshi_info))
+            doujinshi_list.append(Doujinshi(name_format=options.name_format, **doujinshi_info))
 
     if not options.is_show:
         downloader = Downloader(path=options.output_dir,

nhentai/doujinshi.py

@@ -27,7 +27,7 @@ class DoujinshiInfo(dict):
 
 
 class Doujinshi(object):
-    def __init__(self, name=None, id=None, img_id=None, ext='', pages=0, **kwargs):
+    def __init__(self, name=None, id=None, img_id=None, ext='', pages=0, name_format='[%i][%a][%t]', **kwargs):
         self.name = name
         self.id = id
         self.img_id = img_id
@@ -36,7 +36,12 @@ class Doujinshi(object):
         self.downloader = None
         self.url = '%s/%d' % (DETAIL_URL, self.id)
         self.info = DoujinshiInfo(**kwargs)
-        self.filename = format_filename('[%s][%s][%s]' % (self.id, self.info.artist, self.name))
+
+        name_format = name_format.replace('%i', str(self.id))
+        name_format = name_format.replace('%a', self.info.artists)
+        name_format = name_format.replace('%t', self.name)
+        name_format = name_format.replace('%s', self.info.subtitle)
+        self.filename = name_format
 
     def __repr__(self):
         return '<Doujinshi: {0}>'.format(self.name)
@@ -46,7 +51,7 @@ class Doujinshi(object):
             ["Doujinshi", self.name],
             ["Subtitle", self.info.subtitle],
             ["Characters", self.info.character],
-            ["Authors", self.info.artist],
+            ["Authors", self.info.artists],
             ["Language", self.info.language],
             ["Tags", self.info.tags],
             ["URL", self.url],