1 from __future__ import unicode_literals
5 from .common import PostProcessor
8 class MetadataFromTitlePP(PostProcessor):
9 def __init__(self, downloader, titleformat):
10 super(MetadataFromTitlePP, self).__init__(downloader)
11 self._titleformat = titleformat
12 self._titleregex = (self.format_to_regex(titleformat)
13 if re.search(r'%\(\w+\)s', titleformat)
16 def format_to_regex(self, fmt):
18 Converts a string like
19 '%(title)s - %(artist)s'
21 '(?P<title>.+)\ \-\ (?P<artist>.+)'
25 # replace %(..)s with regex group and escape other string parts
26 for match in re.finditer(r'%\((\w+)\)s', fmt):
27 regex += re.escape(fmt[lastpos:match.start()])
28 regex += r'(?P<' + match.group(1) + '>.+)'
30 if lastpos < len(fmt):
31 regex += re.escape(fmt[lastpos:])
36 match = re.match(self._titleregex, title)
38 self._downloader.to_screen(
39 '[fromtitle] Could not interpret title of video as "%s"'
42 for attribute, value in match.groupdict().items():
43 info[attribute] = value
44 self._downloader.to_screen(
45 '[fromtitle] parsed %s: %s'
46 % (attribute, value if value is not None else 'NA'))