StringProcessing: Add unescaped_findall

coalib/parsing/StringProcessing.py

@@ -387,4 +387,19 @@ def unescaped_finditer(string, sub, start=None, end=None):
             yield position
             start = position + 1
         else:
-            raise StopIteration
+            raise StopIteration
+
+
+def unescaped_findall(string, sub, start=None, end=None):
+    """
+    Lists all indices in the string where substring sub is found
+    unescaped, such that sub is contained in the slice s[start:end].
+
+    :param string: Arbitrary String
+    :param sub:    Substring of which the position is to be found
+    :param start:  Begin of string slice that restricts search area
+    :param end:    End of string slice that restricts search area
+    :return:       List of all positions of sub in string, independent of
+                   slice borders!
+    """
+    return list(unescaped_finditer(string, sub, start, end))

coalib/tests/parsing/StringProcessingTest.py

@@ -11,6 +11,7 @@
 from coalib.parsing.StringProcessing import unescaped_find
 from coalib.parsing.StringProcessing import unescaped_rfind
 from coalib.parsing.StringProcessing import unescaped_finditer
+from coalib.parsing.StringProcessing import unescaped_findall
 
 
 class StringProcessingTest(unittest.TestCase):
@@ -791,7 +792,14 @@ def test_unescaped_finditer(self):
         self.assertEqual(list(unescaped_finditer("acb\\cdec", "c")), [1, 7])
         self.assertEqual(list(unescaped_finditer("acb\\cde\\c", "c")), [1])
 
+    def test_unescaped_findall(self):
+        self.assertEqual(unescaped_findall("abcde", "c"), [2])
+        self.assertEqual(unescaped_findall("abcde", "c", 1, 3), [2])
+        self.assertEqual(unescaped_findall("abcde", "c", 3, 4), [])
+        self.assertEqual(unescaped_findall("abcde", "z"), [])
+        self.assertEqual(unescaped_findall("acb\\cdec", "c"), [1, 7])
+        self.assertEqual(unescaped_findall("acb\\cde\\c", "c"), [1])
+
 
 if __name__ == '__main__':
     unittest.main(verbosity=2)
-