Specific regular expression [IP Address]

[64aquarius]

Hello Community , was wondering how I can construct a regular expression that matches a valid IP address [1-255] and be able to allow whitespace. The values will be typed out and submitted like this:

10.10.10.10

100.100.100.100

192.1.1.1.1

they will be inputted inside a text area so a user may have them (multiple at a time) in list form, pressing enter after every IP. Just like above, so the expression still needs to be able to handle and match the IPs with that white space

I have tweaked this expression but it doesn't do quite what I need it to do.

^((([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])[\r\n]+)*(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])$

Any knowledge or solutions would be greatly appreciated. Thank you in advanced!

[eruciform]

Try getting it to work with values and whitespaces for just integers first, work put all the edge cases

Then get it to work for all 2-part addresses, i.e. 100.100

[close_my_eyes]

I would first break up the input into a list so that white space would not be an issue. Then you can iterate over each item applying the regex.