How to select section in regular experssion : I have these lines  
   

          delete = \account
              user\
              admin
          add = \
              nothing
              no out
              inout
          edit = permission 
              bob
              admin
              alice

 I want to select a section for example:

    add = \
      nothing
      no out
      inout

I like do it with regular expression.
Thanks