Add Kurdish letter lam with small v to the Kurdish table

arabic_reshaper/letters.py

@@ -468,6 +468,8 @@
     '\u06B1': ('\u06B1', '\uFB9C', '\uFB9D', '\uFB9B'),
     # ARABIC LETTER GUEH
     '\u06B3': ('\u06B3', '\uFB98', '\uFB99', '\uFB97'),
+    # KURDISH LETTER LAM WITH SMALL V
+    '\u06B5': ('\u06B5', '\uE008', '\uE009', '\uE007'),
     # ARABIC LETTER NOON GHUNNA
     '\u06BA': ('\u06BA', '', '', '\uFB9F'),
     # ARABIC LETTER RNOON

arabic_reshaper/tests/test_005_kurdish.py

@@ -0,0 +1,46 @@
+import unittest
+
+import arabic_reshaper
+
+
+class TestKurdishLamWithSmallV(unittest.TestCase):
+    """U+06B5 has no Unicode presentation forms. Kurdish fonts draw its
+    initial, medial and final forms from private-use code points
+    U+E008, U+E009 and U+E007."""
+
+    def setUp(self):
+        self.reshaper = arabic_reshaper.ArabicReshaper(
+            configuration={'language': 'Kurdish'}
+        )
+
+    def test_forms(self):
+        cases = (
+            # isolated
+            ('ڵ', 'ڵ'),
+            # initial, before meem
+            ('ڵم', 'ﻢ'),
+            # medial, between two meems
+            ('مڵم', 'ﻣﻢ'),
+            # final, after meem
+            ('مڵ', 'ﻣ'),
+        )
+        for text, expected in cases:
+            with self.subTest(text=text):
+                self.assertEqual(self.reshaper.reshape(text), expected)
+
+    def test_words(self):
+        cases = (
+            # سڵاو (hello): medial
+            ('سڵاو', 'ﺳﺎو'),
+            # وڵات (country): initial, because waw does not join forward
+            ('وڵات', 'وﺎت'),
+            # گوڵ (flower): isolated, after waw
+            ('گوڵ', 'ﮔﻮڵ'),
+        )
+        for text, expected in cases:
+            with self.subTest(text=text):
+                self.assertEqual(self.reshaper.reshape(text), expected)
+
+
+if __name__ == '__main__':
+    unittest.main()