Hiển thị các bài đăng có nhãn multiple regex. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn multiple regex. Hiển thị tất cả bài đăng

Match a line with multiple regex using Python

 https://stackoverflow.com/questions/8888567/match-a-line-with-multiple-regex-using-python

You can use the built in functions any (or all if all regexes have to match) and a Generator expression to cycle through all the regex objects.

any (regex.match(line) for regex in [regex1, regex2, regex3])

(or any(re.match(regex_str, line) for regex in [regex_str1, regex_str2, regex_str2]) if the regexes are not pre-compiled regex objects, of course)

However, that will be inefficient compared to combining your regexes in a single expression. If this code is time- or CPU-critical, you should try instead to compose a single regular expression that encompasses all your needs, using the special | regex operator to separate the original expressions.

A simple way to combine all the regexes is to use the string join method:

re.match("|".join([regex_str1, regex_str2, regex_str2]), line)

A warning about combining the regexes in this way: It can result in wrong expressions if the original ones already do make use of the | operator.

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