匹配确切单词的正则表达式

Question

I am trying to match an exact word before last dot and after last dot it should be number.

(\W*((?i)rocket\.jhagsc\.djagsh(?-i)(.*(?=\.).))\W*)((.*(?=\.).)(\d+))

Example:

rocket.jhagsc.djagsh.465465

It should match.

Answer 1

I would phrase this as:

\brocket.jhagsc.djagsh[^.]*\.(?!.*\.)\d.*$

Here is an explanation of the regex pattern:

\brocket.jhagsc.djagsh   match your exact word
[^.]*                    then match zero or more non dots (i.e. allow no dots)
\.                       match the final dot
(?!.*\.)                 then assert that no more dots occur in the string
\d                       match a single digit immediately after the final dot
.*                       consume the remainder of the string
$                        end of the string

Demo