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Diffstat (limited to 'Lib/email/_header_value_parser.py')
| -rw-r--r-- | Lib/email/_header_value_parser.py | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/Lib/email/_header_value_parser.py b/Lib/email/_header_value_parser.py index 6148801..ab3c303 100644 --- a/Lib/email/_header_value_parser.py +++ b/Lib/email/_header_value_parser.py @@ -956,6 +956,7 @@ class _InvalidEwError(errors.HeaderParseError): DOT = ValueTerminal('.', 'dot') ListSeparator = ValueTerminal(',', 'list-separator') ListSeparator.as_ew_allowed = False +ListSeparator.syntactic_break = False RouteComponentMarker = ValueTerminal('@', 'route-component-marker') # @@ -2844,7 +2845,9 @@ def _refold_parse_tree(parse_tree, *, policy): if not hasattr(part, 'encode'): # It's not a Terminal, do each piece individually. parts = list(part) + parts - else: + want_encoding = False + continue + elif part.as_ew_allowed: # It's a terminal, wrap it as an encoded word, possibly # combining it with previously encoded words if allowed. if (last_ew is not None and @@ -2858,8 +2861,14 @@ def _refold_parse_tree(parse_tree, *, policy): # so clear it now. leading_whitespace = '' last_charset = charset - want_encoding = False - continue + want_encoding = False + continue + else: + # It's a terminal which should be kept non-encoded + # (e.g. a ListSeparator). + last_ew = None + want_encoding = False + # fall through if len(tstr) <= maxlen - len(lines[-1]): lines[-1] += tstr |