Edit task to support extra info

Exercise 1/11 - James Bond and Operation Round/11-c.py

@@ -1,14 +1,46 @@
+# Known bug:
+# The program will not accept a name consisting of a single name and a single surname
+# when the surname only consists of the capital letters IVXLCDM and it will wrongly accept
+# a surname consisting of those letters as Roman numerals. In order to fix, some more
+# complex regex logic is needed.
+
+import re
+
+capitalize = lambda name: name.capitalize()
+
+PREPOSITION_LIST = ['von', 'van', 'de', 'di']
+PREPOSITION_LIST.extend(list(map(capitalize, PREPOSITION_LIST)))
+SUFFIX_PATTERN = '[sj]r\.?'
+ROMAN_NUMERAL_PATTERN = '[IVXLCDM]+\.?'
+
+hasSuffix = lambda word: re.match(SUFFIX_PATTERN, word, re.IGNORECASE) is not None
+hasRomanNumerals = lambda word: re.match(ROMAN_NUMERAL_PATTERN, word) is not None
+
 def getName():
   while True:
     name = input('Jeg heter: ')
     if (' ' in name):
-      return name.split(' ')
+      names = name.split(' ')
+      if not (len(names) == 2 and (hasSuffix(names[-1]) or hasRomanNumerals(names[-1]))):
+        return names
     print('Putt et mellomrom mellom fornavn og etternavn')
 
-capitalize = lambda name: name.capitalize()
-
 names = list(map(capitalize, getName()))
-firstNames = ' '.join(names[:-1])
-lastName=names[-1]
+firstNames = names[:-1]
+lastNames=[names[-1]]
 
-print(f'The name is {lastName}, {firstNames} {lastName}')
+moveLastFirstNameToLastNames = lambda: lastNames.insert(0, firstNames.pop())
+
+
+if hasSuffix or hasRomanNumerals:
+  moveLastFirstNameToLastNames()
+
+hasPreposition = firstNames[-1] in PREPOSITION_LIST and len(firstNames) != 1
+
+if hasPreposition:
+  moveLastFirstNameToLastNames()
+
+lastNamesString = ' '.join(lastNames)
+firstNamesString = ' '.join(firstNames)
+
+print(f'The name is {lastNamesString}, {firstNamesString} {lastNamesString}')