Python/re/purge
تفرغ هذه الدالة الذاكرة المخبئية cache الخاصة بالتعبير النظامي.
البنية العامة
re.purge()
القيمة المعادة
لا تعيد هذه الدالة أي قيمة.
يمكن الوصول إلى الذاكرة المخبئية الخاصّة بالتعابير النظامية عن طريق المتغيّر الخاص _cache وهو عبارة عن قاموس يجمع التعابير النمطية المستخدمة سابقًا.
أمثلة
يبين المثال التالي طريقة استخدام هذه الدالة:
>>> p = re.compile(r'(?P<word>\b\w+\b)', re.IGNORECASE)
>>> re._cache
{(<class 'str'>, '[ ]*', 0): (re.compile('[ ]*'), None), (<class 'str'>, '^(\\s*
def\\s)|(\\s*async\\s+def\\s)|(.*(?<!\\w)lambda(:|\\s))|^(\\s*@)', 0): (re.compi
le('^(\\s*def\\s)|(\\s*async\\s+def\\s)|(.*(?<!\\w)lambda(:|\\s))|^(\\s*@)'), No
ne), (<class 'str'>, '[ \\f\\t]*((\\\\\\r?\\n|\\Z|#[^\\r\\n]*|((|Br|f|U|r|Fr|F|R
|rb|br|Rb|Rf|FR|rB|RF|rF|fR|b|bR|RB|B|BR|u|rf|fr)\'\'\'|(|Br|f|U|r|Fr|F|R|rb|br|
Rb|Rf|FR|rB|RF|rF|fR|b|bR|RB|B|BR|u|rf|fr)"""))|(([0-9](?:_?[0-9])*[jJ]|(([0-9](
?:_?[0-9])*\\.(?:[0-9](?:_?[0-9])*)?|\\.[0-9](?:_?[0-9])*)([eE][-+]?[0-9](?:_?[0
-9])*)?|[0-9](?:_?[0-9])*[eE][-+]?[0-9](?:_?[0-9])*)[jJ])|(([0-9](?:_?[0-9])*\\.
(?:[0-9](?:_?[0-9])*)?|\\.[0-9](?:_?[0-9])*)([eE][-+]?[0-9](?:_?[0-9])*)?|[0-9](
?:_?[0-9])*[eE][-+]?[0-9](?:_?[0-9])*)|(0[xX](?:_?[0-9a-fA-F])+|0[bB](?:_?[01])+
|0[oO](?:_?[0-7])+|(?:0(?:_?0)*|[1-9](?:_?[0-9])*)))|((\\*\\*=?|>>=?|<<=?|!=|//=
?|->|[+\\-*/%&@|^=<>]=?|~)|[][(){}]|(\\r?\\n|\\.\\.\\.|[:;.,@]))|((|Br|f|U|r|Fr|
F|R|rb|br|Rb|Rf|FR|rB|RF|rF|fR|b|bR|RB|B|BR|u|rf|fr)\'[^\\n\'\\\\]*(?:\\\\.[^\\n
\'\\\\]*)*(\'|\\\\\\r?\\n)|(|Br|f|U|r|Fr|F|R|rb|br|Rb|Rf|FR|rB|RF|rF|fR|b|bR|RB|
B|BR|u|rf|fr)"[^\\n"\\\\]*(?:\\\\.[^\\n"\\\\]*)*("|\\\\\\r?\\n))|\\w+)', <RegexF
lag.UNICODE: 32>): (re.compile('[ \\f\\t]*((\\\\\\r?\\n|\\Z|#[^\\r\\n]*|((|Br|f|
U|r|Fr|F|R|rb|br|Rb|Rf|FR|rB|RF|rF|fR|b|bR|RB|B|BR|u|rf|fr)\'\'\'|(|Br|f|U|r|Fr|
F|R|rb|br|Rb|Rf|FR|rB|RF|rF|fR|b|bR|RB|B|BR|u|rf|fr)"""))|(([0-9](?:_?[), None),
(<class 'str'>, '^ *\n', 0): (re.compile('^ *\n'), None), (<class 'str'>, '\\s+
', 0): (re.compile('\\s+'), None), (<class 'str'>, '(?s:\\(\\\\.*)\\Z', 0): (re.
compile('(?s:\\(\\\\.*)\\Z'), None), (<class 'str'>, '(?s:\\(\\\\w.*)\\Z', 0): (
re.compile('(?s:\\(\\\\w.*)\\Z'), None), (<class 'str'>, '(?s:\\(\\\\w\\).*)\\Z'
, 0): (re.compile('(?s:\\(\\\\w\\).*)\\Z'), None), (<class 'str'>, '(?s:\\(\\\\w
\\)\\+.*)\\Z', 0): (re.compile('(?s:\\(\\\\w\\)\\+.*)\\Z'), None), (<class 'str'
>, '(?s:\\(\\\\w\\)\\+\\(.*)\\Z', 0): (re.compile('(?s:\\(\\\\w\\)\\+\\(.*)\\Z')
, None), (<class 'str'>, '(?s:\\(\\\\w\\)\\+\\(\\\\.*)\\Z', 0): (re.compile('(?s
:\\(\\\\w\\)\\+\\(\\\\.*)\\Z'), None), (<class 'str'>, '(?s:\\(\\\\w\\)\\+\\(\\\
\d.*)\\Z', 0): (re.compile('(?s:\\(\\\\w\\)\\+\\(\\\\d.*)\\Z'), None), (<class '
str'>, '(?s:\\(\\\\w\\)\\+\\(\\\\d\\).*)\\Z', 0): (re.compile('(?s:\\(\\\\w\\)\\
+\\(\\\\d\\).*)\\Z'), None), (<class 'str'>, '(?s:\\(\\\\w\\)\\+\\\\\\(\\\\d\\).
*)\\Z', 0): (re.compile('(?s:\\(\\\\w\\)\\+\\\\\\(\\\\d\\).*)\\Z'), None), (<cla
ss 'str'>, '(?s:\\(\\\\w\\)\\+\\\\\\:\\(\\\\d\\).*)\\Z', 0): (re.compile('(?s:\\
(\\\\w\\)\\+\\\\\\:\\(\\\\d\\).*)\\Z'), None), (<class 'str'>, '(\\w)+\\:(\\d)',
0): (re.compile('(\\w)+\\:(\\d)'), None), (<class 'str'>, 'p\\ \\=\\ ', 0): (re
.compile('p\\ \\=\\ '), None), (<class 'str'>, '(?P<word>\\b\\w+\\b)', <RegexFla
g.IGNORECASE: 2>): (re.compile('(?P<word>\\b\\w+\\b)', re.IGNORECASE), None)}
>>> re.purge()
>>> re._cache
{(<class 'str'>, '[ ]*', 0): (re.compile('[ ]*'), None)}