fix: add Millisecond to date element

hidateinfer/date_elements.py

@@ -134,6 +134,8 @@ class Minute(DateElement):
 
     @staticmethod
     def is_match(token):
+        if len(token) > 3:
+            return False
         try:
             minute = int(token)
             return 0 <= minute <= 59
@@ -207,6 +209,8 @@ class Second(DateElement):
 
     @staticmethod
     def is_match(token):
+        if len(token) > 3:
+            return False
         try:
             second = int(token)
             return 0 <= second <= 60
@@ -218,6 +222,25 @@ def is_numerical():
         return True
 
 
+class Millisecond(DateElement):
+    """000000 .. 999999
+
+    Normally, millisecond range from 0 to 999999.
+    """
+
+    directive = "%f"
+
+    @staticmethod
+    def is_match(token):
+        if len(token) != 6:
+            return False
+        try:
+            millisecond = int(token)
+            return 0 <= millisecond <= 999999
+        except ValueError:
+            return False
+
+
 class Timezone(DateElement):
     """IANA common timezones (e.g. UTC, EST, US/Eastern, ...)"""
 

hidateinfer/infer.py

@@ -18,6 +18,7 @@
     MonthTextLong,
     MonthTextShort,
     Second,
+    Millisecond,
     Timezone,
     UTCOffset,
     WeekdayLong,
@@ -51,6 +52,7 @@
     DayOfMonth(),
     Minute(),
     Second(),
+    Millisecond(),
     Year2(),
     Year4(),
     UTCOffset(),

hidateinfer/tests/examples.yaml

@@ -173,3 +173,10 @@ format: "%A %d %B %Y %I:%M %p"
 examples:
   - Tuesday 5 March 2019 05:09 PM
 ...
+---
+name: UTC with  millisecond
+format: "%Y-%m-%dT%H:%M:%S.%f"
+examples:
+  - 2014-01-22T23:21:05.000055
+  - 2015-02-23T16:05:31.020023
+...