I've seen various articles which show how to match a URL. But my situation is a bit different from the usual URL matching.
This was one such regex that didn't work for me
/https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,4}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)/
My requirement:
My requirement is that I've a string like this
userlist.2011.text_mediafire.com ,
userlist.2011.text_http://www.mediafire.com ",
userlist.2011.text_http://mediafire.com ",
userlist.2011.text.www.mediafire.com
Now, I want to match mediafire.com along with (if exists) " http://www.
" and " www. " so, the contraint that I wish to set is that all the strings to the left of a TLD (in this case '.com') should be recorded upto a list of specal characters like '"_-
etc.
I wasn't able to proceed any further except that the basic /(.*)\\.(com|net|org|info)/
.Which is clearly wrong.
使用以下正则表达式从组索引1中获取所需的字符串。
(?:http:\/\/)?(?:www\.)?([^'"_.-]*\.(?:com|net|org|info)\b)
You need the '$'
to match the end of string. If you care about capturing the entire string before the special character you will also need to match the beginning of the string '^'
.
/^(.*)\.(([^\.]+)\.(com|net|org|info))$/
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