fix: address comments

Signed-off-by: yihong0618 <zouzou0208@gmail.com>

Author: yihong0618

Lib/_pyrepl/utils.py

@@ -64,7 +64,12 @@ def str_width(c: str) -> int:
     if ord(c) < 128:
         return 1
     # gh-139246 for zero-width joiner and combining characters
-    if unicodedata.combining(c) or unicodedata.category(c) == "Cf":
+    category = unicodedata.category(c)
+    if unicodedata.combining(c):
+        return 0
+    if category == "Cf" and c != "\u00ad":
+        return 0
+    if "\u2028" <= c <= "\u2029":
         return 0
     w = unicodedata.east_asian_width(c)
     if w in ("N", "Na", "H", "A"):

Lib/test/test_pyrepl/test_utils.py

@@ -15,13 +15,16 @@ def test_str_width(self):
             '\uffb9',
             '\N{LATIN SMALL LETTER E WITH ACUTE}',  # é
             '\N{LATIN SMALL LETTER E WITH CEDILLA}', # ȩ
+            '\u00ad',
         ]
         for c in characters:
             self.assertEqual(str_width(c), 1)
 
         zero_width_characters = [
             '\N{COMBINING ACUTE ACCENT}',
             '\N{ZERO WIDTH JOINER}',
+            '\u2028',
+            '\u2029',
         ]
         for c in zero_width_characters:
             with self.subTest(character=c):