ed(3)                 LPC Library Functions                 ed(3)

NAME
     ed() - edit a file

SYNOPSIS
     void ed( string file, string exit_fn, int restricted );
     void ed( string file, string write_fn, string exit_fn, int restricted );

DESCRIPTION
     This efun is only available if __OLD_ED__ is defined.

     This is a funny function. It will start a local editor on an
     optional  file.   This  editor is almost UNIX ed compatible.
     When in the editor type 'h' for help.

     The <write_fn> function allows the  mudlib  to  handle  file
     locks  and  administrative  logging of files modified.  When
     the editor writes to a file, the driver  will  callback  the
     <write_fn>  function twice.  The first time, the function is
     called before the write takes place -- <flag> will be 0.  If
     the  function  returns TRUE, the write will continue, other-
     wise it will abort.  The second time, the function is called
     after  the  write  has completed -- <flag> will be non-zero.
     This callback function should have the form:

          int write_fn(string fname, int flag)

     When the editor is exited,  the  driver  will  callback  the
     <exit_fn>  function.   This  function  allows  the mudlib to
     clean up.  This callback function has the form:

          void exit_fn()

     The optional <restricted> flag limits the editor's capabili-
     ties,  such  as inserting a file, and saving using an alter-
     nate file name.

SEE ALSO
     regexp(3),          valid_read(4),           valid_write(4),
     get_save_file_name(4)

MudOS                Last change: 5 Sep 1994                    1