diff options
| -rw-r--r-- | Doc/library/re.rst | 17 | ||||
| -rw-r--r-- | Doc/tools/susp-ignored.csv | 2 |
2 files changed, 16 insertions, 3 deletions
diff --git a/Doc/library/re.rst b/Doc/library/re.rst index 323854a..3213daf 100644 --- a/Doc/library/re.rst +++ b/Doc/library/re.rst @@ -784,11 +784,22 @@ form. Unmatched groups are replaced with an empty string. -.. function:: escape(string) +.. function:: escape(pattern) - Escape all the characters in pattern except ASCII letters, numbers and ``'_'``. + Escape all the characters in *pattern* except ASCII letters, numbers and ``'_'``. This is useful if you want to match an arbitrary literal string that may - have regular expression metacharacters in it. + have regular expression metacharacters in it. For example:: + + >>> print(re.escape('python.exe')) + python\.exe + + >>> legal_chars = string.ascii_lowercase + string.digits + "!#$%&'*+-.^_`|~:" + >>> print('[%s]+' % re.escape(legal_chars)) + [abcdefghijklmnopqrstuvwxyz0123456789\!\#\$\%\&\'\*\+\-\.\^_\`\|\~\:]+ + + >>> operators = ['+', '-', '*', '/', '**'] + >>> print('|'.join(map(re.escape, sorted(operators, reverse=True)))) + \/|\-|\+|\*\*|\* .. versionchanged:: 3.3 The ``'_'`` character is no longer escaped. diff --git a/Doc/tools/susp-ignored.csv b/Doc/tools/susp-ignored.csv index 51edb66..df67f75 100644 --- a/Doc/tools/susp-ignored.csv +++ b/Doc/tools/susp-ignored.csv @@ -302,6 +302,8 @@ whatsnew/3.2,,:feed,>>> urllib.parse.urlparse('http://[dead:beef:cafe:5417:affe: whatsnew/3.2,,:gz,">>> with tarfile.open(name='myarchive.tar.gz', mode='w:gz') as tf:" whatsnew/3.2,,:location,zope9-location = ${zope9:location} whatsnew/3.2,,:prefix,zope-conf = ${custom:prefix}/etc/zope.conf +library/re,,`,!#$%&'*+-.^_`|~: +library/re,,`,\!\#\$\%\&\'\*\+\-\.\^_\`\|\~\: library/tarfile,,:xz,'x:xz' library/xml.etree.elementtree,,:sometag,prefix:sometag library/xml.etree.elementtree,,:fictional,"<actors xmlns:fictional=""http://characters.example.com""" |