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bpo-30349: Raise FutureWarning for nested sets and set operations (#1553)

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in regular expressions.
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Serhiy Storchaka 2017-11-16 12:38:26 +02:00 • committed by GitHub
parent 3daaafb700
commit 05cb728d68
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8 changed files with 106 additions and 9 deletions
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9
Lib/email/_header_value_parser.py
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@ -1354,15 +1354,14 @@ RouteComponentMarker = ValueTerminal('@', 'route-component-marker')
_wsp_splitter = re.compile(r'([{}]+)'.format(''.join(WSP))).split
_non_atom_end_matcher = re.compile(r"[^{}]+".format(
''.join(ATOM_ENDS).replace('\\','\\\\').replace(']',r'\]'))).match
re.escape(''.join(ATOM_ENDS)))).match
_non_printable_finder = re.compile(r"[\x00-\x20\x7F]").findall
_non_token_end_matcher = re.compile(r"[^{}]+".format(
''.join(TOKEN_ENDS).replace('\\','\\\\').replace(']',r'\]'))).match
re.escape(''.join(TOKEN_ENDS)))).match
_non_attribute_end_matcher = re.compile(r"[^{}]+".format(
''.join(ATTRIBUTE_ENDS).replace('\\','\\\\').replace(']',r'\]'))).match
re.escape(''.join(ATTRIBUTE_ENDS)))).match
_non_extended_attribute_end_matcher = re.compile(r"[^{}]+".format(
''.join(EXTENDED_ATTRIBUTE_ENDS).replace(
'\\','\\\\').replace(']',r'\]'))).match
re.escape(''.join(EXTENDED_ATTRIBUTE_ENDS)))).match
def _validate_xtext(xtext):
"""If input token contains ASCII non-printables, register a defect."""