Fix short weekday names

dateparser/data/date_translation_data/en.py

@@ -51,32 +51,39 @@
     ],
     "monday": [
         "mon",
-        "monday"
+        "monday",
+        "mo"
     ],
     "tuesday": [
         "tue",
         "tuesday",
+        "tu",
         "Tues"
     ],
     "wednesday": [
         "wed",
-        "wednesday"
+        "wednesday",
+        "we"
     ],
     "thursday": [
         "thu",
-        "thursday"
+        "thursday",
+        "th"
     ],
     "friday": [
         "fri",
-        "friday"
+        "friday",
+        "fr"
     ],
     "saturday": [
         "sat",
-        "saturday"
+        "saturday",
+        "sa"
     ],
     "sunday": [
         "sun",
-        "sunday"
+        "sunday",
+        "su"
     ],
     "am": [
         "am"

dateparser/languages/locale.py

@@ -109,6 +109,31 @@ def clean_dictionary(dictionary, threshold=2):
             del dictionary[del_key]
         return dictionary
 
+    @property
+    def weekdays(self):
+        weekdays = [
+            "monday",
+            "tuesday",
+            "wednesday",
+            "thursday",
+            "friday",
+            "saturday",
+            "sunday",
+        ]
+        return weekdays
+
+    def remove_multiple_occurrences(self, date_str_tokens: list):
+        # first occurrence of day of the week will be considered
+        # followings occurrence(s) will be skipped and removed from the token list.
+        weekdays_counter = 0
+        for i, token in enumerate(date_str_tokens):
+            if token in self.weekdays:
+                weekdays_counter += 1
+
+                if weekdays_counter > 1:
+                    date_str_tokens.pop(i)
+                    continue
+
     def translate(self, date_string, keep_formatting=False, settings=None):
         """
         Translate the date string to its English equivalent.
@@ -145,6 +170,7 @@ def translate(self, date_string, keep_formatting=False, settings=None):
         if "in" in date_string_tokens:
             date_string_tokens = self._clear_future_words(date_string_tokens)
 
+        self.remove_multiple_occurrences(date_string_tokens)
         return self._join(
             list(filter(bool, date_string_tokens)),
             separator="" if keep_formatting else " ",

dateparser_data/supplementary_language_data/date_translation_data/en.yaml

@@ -3,9 +3,30 @@ pertain: ["of"]
 
 sentence_splitter_group : 1
 
+# two letters days of week
+
+monday:
+    - mo
+
 tuesday:
+    - tu
     - Tues
 
+wednesday:
+    - we
+
+thursday:
+    - th
+
+friday:
+    - fr
+
+saturday:
+    - sa
+
+sunday:
+    - su
+
 september:
     - sept