diff options
Diffstat (limited to 'Doc/library/re.rst')
| -rw-r--r-- | Doc/library/re.rst | 53 |
1 files changed, 27 insertions, 26 deletions
diff --git a/Doc/library/re.rst b/Doc/library/re.rst index 5c70372..4f1528d 100644 --- a/Doc/library/re.rst +++ b/Doc/library/re.rst @@ -221,7 +221,7 @@ The special characters are: flags are described in :ref:`contents-of-module-re`.) This is useful if you wish to include the flags as part of the regular expression, instead of passing a *flag* argument to the - :func:`compile` function. + :func:`re.compile` function. Note that the ``(?x)`` flag changes how the expression is parsed. It should be used first in the expression string, or after one or more whitespace characters. @@ -464,9 +464,9 @@ form. result = re.match(pattern, string) - but using :func:`compile` and saving the resulting regular expression object - for reuse is more efficient when the expression will be used several times - in a single program. + but using :func:`re.compile` and saving the resulting regular expression + object for reuse is more efficient when the expression will be used several + times in a single program. .. note:: @@ -564,7 +564,7 @@ form. .. note:: - If you want to locate a match anywhere in *string*, use :meth:`search` + If you want to locate a match anywhere in *string*, use :func:`search` instead. @@ -655,9 +655,7 @@ form. >>> re.sub(r'\sAND\s', ' & ', 'Baked Beans And Spam', flags=re.IGNORECASE) 'Baked Beans & Spam' - The pattern may be a string or an RE object; if you need to specify regular - expression flags, you must use a RE object, or use embedded modifiers in a - pattern; for example, ``sub("(?i)b+", "x", "bbbb BBBB")`` returns ``'x x'``. + The pattern may be a string or an RE object. The optional argument *count* is the maximum number of pattern occurrences to be replaced; *count* must be a non-negative integer. If omitted or zero, all @@ -720,8 +718,8 @@ attributes: .. note:: - If you want to locate a match anywhere in *string*, use :meth:`search` - instead. + If you want to locate a match anywhere in *string*, use + :meth:`~RegexObject.search` instead. The optional second parameter *pos* gives an index in the string where the search is to start; it defaults to ``0``. This is not completely equivalent to @@ -750,7 +748,7 @@ attributes: is different from finding a zero-length match at some point in the string. The optional *pos* and *endpos* parameters have the same meaning as for the - :meth:`match` method. + :meth:`~RegexObject.match` method. .. method:: RegexObject.split(string[, maxsplit=0]) @@ -814,10 +812,10 @@ support the following methods and attributes: .. method:: MatchObject.expand(template) Return the string obtained by doing backslash substitution on the template - string *template*, as done by the :meth:`sub` method. Escapes such as ``\n`` are - converted to the appropriate characters, and numeric backreferences (``\1``, - ``\2``) and named backreferences (``\g<1>``, ``\g<name>``) are replaced by the - contents of the corresponding group. + string *template*, as done by the :meth:`~RegexObject.sub` method. Escapes + such as ``\n`` are converted to the appropriate characters, and numeric + backreferences (``\1``, ``\2``) and named backreferences (``\g<1>``, + ``\g<name>``) are replaced by the contents of the corresponding group. .. method:: MatchObject.group([group1, ...]) @@ -938,16 +936,16 @@ support the following methods and attributes: .. attribute:: MatchObject.pos - The value of *pos* which was passed to the :func:`search` or :func:`match` - method of the :class:`RegexObject`. This is the index into the string at which - the RE engine started looking for a match. + The value of *pos* which was passed to the :meth:`~RegexObject.search` or + :meth:`~RegexObject.match` method of the :class:`RegexObject`. This is the + index into the string at which the RE engine started looking for a match. .. attribute:: MatchObject.endpos - The value of *endpos* which was passed to the :func:`search` or :func:`match` - method of the :class:`RegexObject`. This is the index into the string beyond - which the RE engine will not go. + The value of *endpos* which was passed to the :meth:`~RegexObject.search` or + :meth:`~RegexObject.match` method of the :class:`RegexObject`. This is the + index into the string beyond which the RE engine will not go. .. attribute:: MatchObject.lastindex @@ -967,13 +965,15 @@ support the following methods and attributes: .. attribute:: MatchObject.re - The regular expression object whose :meth:`match` or :meth:`search` method - produced this :class:`MatchObject` instance. + The regular expression object whose :meth:`~RegexObject.match` or + :meth:`~RegexObject.search` method produced this :class:`MatchObject` + instance. .. attribute:: MatchObject.string - The string passed to :func:`match` or :func:`search`. + The string passed to :meth:`~RegexObject.match` or + :meth:`~RegexObject.search`. Examples @@ -1018,8 +1018,9 @@ To match this with a regular expression, one could use backreferences as such: >>> displaymatch(pair.match("354aa")) # Pair of aces. "<Match: '354aa', groups=('a',)>" -To find out what card the pair consists of, one could use the :func:`group` -method of :class:`MatchObject` in the following manner: +To find out what card the pair consists of, one could use the +:meth:`~MatchObject.group` method of :class:`MatchObject` in the following +manner: .. doctest:: |