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bpo-35584: Clarify role of caret in a class class (GH-11946)

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https://bugs.python.org/issue35584
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Raymond Hettinger 2019-02-19 11:32:18 -08:00 • committed by Miss Islington (bot)
parent 3ef6344ee5
commit 3bacf61265
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Doc/howto/regex.rst
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@ -96,8 +96,9 @@ special nature.
You can match the characters not listed within the class by :dfn:`complementing`
the set. This is indicated by including a ``'^'`` as the first character of the
class; ``'^'`` outside a character class will simply match the ``'^'``
character. For example, ``[^5]`` will match any character except ``'5'``.
class. For example, ``[^5]`` will match any character except ``'5'``. If the
caret appears elsewhere in a character class, it does not have special meaning.
For example: ``[5^]`` will match either a ``'5'`` or a ``'^'``.
Perhaps the most important metacharacter is the backslash, ``\``. As in Python
string literals, the backslash can be followed by various characters to signal