通过sre_parse.parse解析正则表达式字符串 通过_code方法生成解析结果的字节码,然后通过 _sre.compile生成最终的 Pattern对象 首先我们来看 parse解析逻辑,其代码实现如下 def parse(str, flags=0, state=None): source = Tokenizer(str) if state is None: state = State() state.flags = flags state.str = ...
File "D:\Python\lib\re.py", line 289, in _compile p = sre_compile.compile(pattern, flags) File "D:\Python\lib\sre_compile.py", line 764, in compile p = sre_parse.parse(p, flags) File "D:\Python\lib\sre_parse.py", line 924, in parse p = _parse_sub(source, pattern, flag...
['copy_reg', 'sre_compile', '_sre', 'encodings', 'site', '__builtin__', 'sysconfig', '__main__', 'encodings.encodings', 'abc', 'posixpath', '_weakrefset', 'errno', 'encodings.codecs', 'sre_constants', 're', '_abcoll', 'types', '_codecs', 'encodings.__builtin__',...
Python——查看帮助手册 >>>importre>>>dir(re)['A','ASCII','DEBUG','DOTALL','I','IGNORECASE','L','LOCALE','M','MULTILINE','Match','Pattern','RegexFlag','S','Scanner','T','TEMPLATE','U','UNICODE','VERBOSE''_MAXCACHE','__name__','__package__','__spec__','__version...
对于python的沙箱逃逸而言,我们来实现目的的最终想法有以下几个 使用os包中的popen,system两个函数来直接执行shell 使用commands模块中的方法 使用subprocess 使用写文件到指定位置,再使用其他辅助手段 总体来说,我们使用以下几个函数,就可以直接愉快的拿到shell啦!
PyDelphin currently uses sre_parse.parse_template() for parsing the capturing groups of regular expressions: pydelphin/delphin/repp.py Lines 634 to 636 in 33415cf def _get_segments(replacement: str, _re): # parse_template() is an undocum...
SRE_Match'>, <class '_sre.SRE_Scanner'>, <class 'sre_parse.Pattern'>, <class 'sre_parse.SubPattern'>, <class 'sre_parse.Tokenizer'>, <class 're.Scanner'>, <class 'tokenize.Untokenizer'>, <class 'traceback.FrameSummary'>, <class 'traceback.TracebackException'>, <class 'threading....
re.search re.sre_compile re.sub re.sys re.split re.sre_parse re.subn In [37]: re.split(r':|',str4) Out[37]: ['imooc','C','C++','Java','Python'] In [38]: re.split(r':| |,',str4) Out[38]: ['imooc','C','C++','Java','Python'] ...
>>> import re>>> re.search('^a', 'abc')<_sre.SRE_Match object; span=(0, 1), match='a'>>> re.search('^a', 'xabc')>>>代码块12345 在第 2 行，^a 表示从字符串 ‘abc’ 的首部进行匹配在第 3 行，显示匹配结果不为 None在第 4 行，^a 表示从字符串 ‘xabc’ 的首部进行匹配...
GitHub fields: assignee='https://github.com/serhiy-storchaka'closed_at=<Date2015-04-07.17:37:33.495>created_at=<Date2009-08-05.17:14:38.065>labels=['expert-regex','type-bug']title='sre_parse contains a confusing generic error message'updated_at=<Date2015-04-07.17:37:33.495>user='https:...