Java regex match across words having apostrophe

问题

I have a sentence "no it's all right lag" where I am trying to detected a pattern "no lag". My regex is no + (\\s\\w*?\\s?){1,3} + lag. This fails. However if my sentence is "no its all right lag" (note that the word its is not having the apostrophe), then the match succeeds. Can anyone suggest how can i ignore the apostrophe in the window. I am using java pattern matcher.

回答1:

You could create a new character class with the [] notation, instead of having \w you should use [\w'] making the entire regex "no(\s[\w']*?\s?){1,3}lag" as a Java String.

Also for developing regular expressions I would recommend this site: http://www.regexplanet.com/advanced/java/index.html

回答2:

I think just no(.*)lag pattern will work. If I understood right.

来源：https://stackoverflow.com/questions/35426560/java-regex-match-across-words-having-apostrophe