c# - Regular expression replace -

I need a reg X script

• Delete all symbols

• Example:

  • Mike & amp; Ike Output Mike Iki is the output: Mike-Iki
  • Mike-Ike-Jill The output is: Mike-Ike < Li> Ike-Jill
  • Mike - Ike-Jill Output is: Mike-Ike-Jill
  • Mike - IK-Jill Output is: Mike-Ike-Jill
  • Mike.K.Bill Output is: Mike Ikeley
  • Mike ** * which is Output: Mike Jo
  • Mike 123 Output is: Mike 123

    You can do something with many passes.
    This is the usual kind of normal type that can be reduced by using look-bihund.
    (Not all Reggae flavors support this)

    1. Delete multiple - with reg - {2,}
    2. Remove symbols except -. with regex [^ - \. A-Za-z0-9]
    3. Change to the first . with a floating character! Change and the rest .
    4. ! Use from to the last step Li>

       update .)

         string str = "Mike and Ike .. .... "; Str = Regex. Change (str, @ "- +", @ "-"); Str = Regex. Replace (str, @ "(? & Lt; = \.) (. *?) \.", @ "$ 1"); Str = Regex.Replace (str, @ "[^ \ w \ r \ n]", @ ""); Remove   
        
        Delete  -   
        with  -  and delete .  If this is not the first .  using positiv lookbehind  (? & Lt; = ...)   
        Remove symbols (not really everything word or new line) < Less for Code> \ w   [A-Za-z0- 9]