匹配* text *的正则表达式是什么？

Question

匹配this is *some text*.但不是this is \*another \*text的正则表达式是什么？正则表达式应该与星号之间的文本匹配。

Answer 1

pattern = "\*(\w+(?:\s+\w+)*)\*"
re.findall(pattern, "this is *some text*.") // return 'some text'
re.findall(pattern, "this is \*another \*text") // return nothing

用'$'代替'*'：

subpattern = "(\*(\w+(?:\s+\w+)*)\*)"
re.sub(subpattern, r"$\2$", "this is *some text*.") // return 'this is $some text$.'