How can I use regex in notepad++ to make a query like this: I have a list with subdomains containing three words such as
web1.com
test.web2.com
I want to filter so that only three words remain and something like this comes out:
web1.com
test.web2.com
test.web3.com
I was able to delete so that only the domain remains, but this is not what I want
^(?:.+\.)?([^.\r\n]+\.[^.\r\n]+)$
An idea to match until the endpart starts and capture that.
^.*?\.([\w-]+\.[\w-]+\.[\w-]+)$
Replace with $1 (what was captured by the first group)
.*? matches lazily any amount of any characters (besides newline)[\w-]+ char-class matches one or more word characters and hyphenSee this demo at regex101 (more explanation on the right side)
In Notepad++ be sure to have unchecked: [ ] dot matches newline
Another take at it using a positive lookahead to assert the 3 "words" to the right, allowing for non whitespace chars excluding a dot using [^\s.]
In the replacement use an empty string.
^\S+?\.(?=[^\s.]+\.[^\s.]+\.[^\s.]+$)
See a regex demo.
