[unix-history] / usr / src / usr.bin / more / help.c

/*
* Copyright (c) 1988 Mark Nudleman
* Copyright (c) 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Mark Nudleman and the University of California, Berkeley.  The
* name of Mark Nudleman or the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/

#ifndef lint
static char sccsid[] = "@(#)help.c      5.4 (Berkeley) %G%";
#endif /* not lint */

#include  "less.h"

/*
* Display some help.
* Just invoke another "less" to display the help file.
*
* {{ This makes this function very simple, and makes changing the
*    help file very easy, but it may present difficulties on
*    (non-Unix) systems which do not supply the "system()" function. }}
*/

       public void
help()
{
       char cmd[MAXPATHLEN+100];

       (void)sprintf(cmd,
        "-less -m '-PmHELP -- ?eEND -- Press g to see it again:Press RETURN for more., or q when done ' %s",
        HELPFILE);
       lsystem(cmd);
}