feat(week): add week property

docs/properties.md

@@ -42,6 +42,10 @@ Main properties
 
     Year of movie (or episode).
 
+-   **week**
+
+    Week number, from 1 to 52, of episode.
+
 -   **release\_group**
 
     Name of (non)scene group that released the file.

guessit/config/options.json

@@ -839,6 +839,9 @@
       "Yahoo": "YHOO",
       "YouTube Red": "RED",
       "ZDF": "ZDF"
+    },
+    "date": {
+      "week_words": ["week"]
     }
   }
 }

guessit/rules/common/date.py

@@ -34,6 +34,11 @@ def valid_year(year):
     return 1920 <= year < 2030
 
 
+def valid_week(week):
+    """Check if number is a valid week"""
+    return 1 <= week < 53
+
+
 def _is_int(string):
     """
     Check if the input string is an integer

guessit/rules/properties/date.py

@@ -1,13 +1,17 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 """
-date and year properties
+date, week and year properties
 """
+import re
+
 from rebulk import Rebulk, RemoveMatch, Rule
 
-from ..common.date import search_date, valid_year
+from ..common import dash
+from ..common.date import search_date, valid_year, valid_week
 from ..common.pattern import is_disabled
 from ..common.validators import seps_surround
+from ...reutils import build_or_pattern
 
 
 def date(config):  # pylint:disable=unused-argument
@@ -28,6 +32,15 @@ def date(config):  # pylint:disable=unused-argument
                  else '__default__',
                  validator=lambda match: seps_surround(match) and valid_year(match.value))
 
+    rebulk.regex(build_or_pattern(config.get('week_words')) + r"-?(\d{1,2})",
+                 name="week", formatter=int,
+                 children=True,
+                 flags=re.IGNORECASE, abbreviations=[dash],
+                 conflict_solver=lambda match, other: other
+                 if other.name in ('episode', 'season') and len(other.raw) < len(match.raw)
+                 else '__default__',
+                 validator=lambda match: seps_surround(match) and valid_week(match.value))
+
     def date_functional(string, context):  # pylint:disable=inconsistent-return-statements
         """
         Search for date in the string and retrieves match

guessit/test/rules/episodes.yml

@@ -330,7 +330,14 @@
   season: 2010
   episode: 2
 
+? Show Name - S32-Dummy 45-Ep 6478
+: title: Show Name
+  episode_title: Dummy 45
+  season: 32
+  episode: 6478
+
 ? Show Name - S32-Week 45-Ep 6478
 : title: Show Name
   season: 32
+  week: 45
   episode: 6478