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Fix closes issue14258 - added clarification to \W and \S flags

This commit is contained in:
Senthil Kumaran 2012-03-11 20:37:39 -07:00
parent b60156e809
commit 15b6f3f825
1 changed files with 12 additions and 8 deletions
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Doc/library/re.rst
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@ -361,12 +361,12 @@ the second character. For example, ``\$`` matches the character ``'$'``.
character properties database.
``\S``
When the :const:`LOCALE` and :const:`UNICODE` flags are not specified, matches
any non-whitespace character; this is equivalent to the set ``[^ \t\n\r\f\v]``
With :const:`LOCALE`, it will match any character not in this set, and not
defined as space in the current locale. If :const:`UNICODE` is set, this will
match anything other than ``[ \t\n\r\f\v]`` and characters marked as space in
the Unicode character properties database.
When the :const:`LOCALE` and :const:`UNICODE` flags are not specified,
matches any non-whitespace character; this is equivalent to the set ``[^
\t\n\r\f\v]`` With :const:`LOCALE`, it will match the above set plus any
non-space character in the current locale. If :const:`UNICODE` is set, the
above set ``[^ \t\n\r\f\v]`` plus the characters not marked as space in the
Unicode character properties database.
``\w``
When the :const:`LOCALE` and :const:`UNICODE` flags are not specified, matches
@ -381,12 +381,16 @@ the second character. For example, ``\$`` matches the character ``'$'``.
any non-alphanumeric character; this is equivalent to the set ``[^a-zA-Z0-9_]``.
With :const:`LOCALE`, it will match any character not in the set ``[0-9_]``, and
not defined as alphanumeric for the current locale. If :const:`UNICODE` is set,
this will match anything other than ``[0-9_]`` and characters marked as
alphanumeric in the Unicode character properties database.
this will match anything other than ``[0-9_]`` plus characters classied as
not alphanumeric in the Unicode character properties database.
``\Z``
Matches only at the end of the string.
If both :const:`LOCALE` and :const:`UNICODE` flags are included for a
particular sequence, then :const:`LOCALE` flag takes effect first followed by
the :const:`UNICODE`.
Most of the standard escapes supported by Python string literals are also
accepted by the regular expression parser::