Accept dates in like "2 poł. XIX w."

[librarian.git] / librarian / dcparser.py

diff --git a/librarian/dcparser.py b/librarian/dcparser.py
index d99aaf0..fff8ac2 100644 (file)
--- a/librarian/dcparser.py
+++ b/librarian/dcparser.py
@@ -6,6 +6,8 @@
 from xml.parsers.expat import ExpatError
 from datetime import date
 import time
 from xml.parsers.expat import ExpatError
 from datetime import date
 import time

+import re
+from librarian.util import roman_to_int

 
 from librarian import (ValidationError, NoDublinCore, ParseError, DCNS, RDFNS,
                        WLURI)
 
 from librarian import (ValidationError, NoDublinCore, ParseError, DCNS, RDFNS,
                        WLURI)


@@ -62,10 +64,17 @@ class Person(object):
 
 def as_date(text):
     try:
 
 def as_date(text):
     try:

-        try:
-            t = time.strptime(text, '%Y-%m-%d')
-        except ValueError:
-            t = time.strptime(text, '%Y')
+        # check out the "N. poł X w." syntax
+        m = re.match(u"([12]) *poł[.]? ([MCDXVI]+) .*[.]?", text)
+        if m:
+            half = int(m.groups()[0])
+            century = roman_to_int(str(m.groups()[1]))
+            t = ((century*100 + (half-1)*50), 1, 1)
+        else:
+            try:
+                t = time.strptime(text, '%Y-%m-%d')
+            except ValueError:
+                t = time.strptime(text, '%Y')

         return date(t[0], t[1], t[2])
     except ValueError, e:
         raise ValueError("Unrecognized date format. Try YYYY-MM-DD or YYYY.")
         return date(t[0], t[1], t[2])
     except ValueError, e:
         raise ValueError("Unrecognized date format. Try YYYY-MM-DD or YYYY.")