Parse folders via regex. Fixes #127

Mailnag/common/accounts.py

@@ -23,6 +23,7 @@
 # MA 02110-1301, USA.
 #
 
+import re
 import poplib
 import logging
 import Mailnag.common.imaplib2 as imaplib
@@ -105,22 +106,14 @@ class Account:
 			# conn.close() # allowed in SELECTED state only
 			conn.logout()
 		
-		separators = [ ' "/" ', ' "." ' ]
 		for d in data:
-			folder = ''
-			for s in separators:
-				if s in d:
-					folder = d.split(s)[-1]
-					break
-			
-			if len(folder) == 0:
+			match = re.match('.+\s+("."|"?NIL"?)\s+"?([^".]+)"?$', d)
+
+			if match == None:
 				logging.warning("Folder format not supported.")
-				break
-			
-			if (folder[0] == '"') and (folder[-1] == '"'):
-				folder = folder[1:-1]
-			
-			lst.append(folder)
+			else:
+				folder = match.group(2)
+				lst.append(folder)
 		
 		return lst