BUG: Avoid IndexError in _cmap.parse_to_unicode (py-pdf#1110)

The code within the if block assumes that `lst` has index 0 and index 1. Fixes py-pdf#1091 Related to py-pdf#1111
dkg · Jul 14, 2022 · bb2d1db · bb2d1db
1 parent 5e1cc57
commit bb2d1db
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/PyPDF2/_cmap.py b/PyPDF2/_cmap.py
@@ -245,7 +245,7 @@ def parse_to_unicode(
         elif process_char:
             lst = [x for x in l.split(b" ") if x]
             map_dict[-1] = len(lst[0]) // 2
-            while len(lst) > 0:
+            while len(lst) > 1:
                 map_dict[
                     unhexlify(lst[0]).decode(
                         "charmap" if map_dict[-1] == 1 else "utf-16-be", "surrogatepass"