gh-118761: substitute re import in base64.b16decode for a more efficient alternative (#128736)

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Chris Markiewicz <effigies@gmail.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
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Bénédikt Tran 2025-01-14 14:25:33 +01:00 committed by GitHub
parent 859db49029
commit bbd3300ae8
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3 changed files with 15 additions and 2 deletions

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@ -4,7 +4,6 @@
# Modified 30-Dec-2003 by Barry Warsaw to add full RFC 3548 support
# Modified 22-May-2007 by Guido van Rossum to use bytes everywhere
import re
import struct
import binascii
@ -284,7 +283,7 @@ def b16decode(s, casefold=False):
s = _bytes_from_decode_data(s)
if casefold:
s = s.upper()
if re.search(b'[^0-9A-F]', s):
if s.translate(None, delete=b'0123456789ABCDEF'):
raise binascii.Error('Non-base16 digit found')
return binascii.unhexlify(s)