common/options.h

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * %sccs.include.redist.c%
   6  *
   7  *      $Id: options.h,v 8.13 1993/12/10 16:31:26 bostic Exp $ (Berkeley) $Date: 1993/12/10 16:31:26 $
   8  */
   9
  10 struct _option {
  11         union {
  12                 u_long   val;           /* Value or boolean. */
  13                 char    *str;           /* String. */
  14         } o_u;
  15         size_t  len;                    /* String length. */
  16
  17 #define OPT_ALLOCATED   0x01            /* Allocated space. */
  18 #define OPT_SELECTED    0x02            /* Selected for display. */
  19 #define OPT_SET         0x04            /* Set (display for the user). */
  20         u_char  flags;
  21 };
  22
  23 struct _optlist {
  24         char    *name;                  /* Name. */
  25                                         /* Change function. */
  26         int     (*func) __P((SCR *, OPTION *, char *, u_long));
  27                                         /* Type of object. */
  28         enum { OPT_0BOOL, OPT_1BOOL, OPT_NUM, OPT_STR } type;
  29
  30 #define OPT_NEVER       0x01            /* Never display the option. */
  31 #define OPT_NOSAVE      0x02            /* Mkexrc command doesn't save. */
  32 #define OPT_NOSTR       0x04            /* String that takes a "no". */
  33         u_int    flags;
  34 };
  35
  36 /* Clear, set, test boolean options. */
  37 #define O_SET(sp, o)            (sp)->opts[(o)].o_u.val = 1
  38 #define O_CLR(sp, o)            (sp)->opts[(o)].o_u.val = 0
  39 #define O_ISSET(sp, o)          ((sp)->opts[(o)].o_u.val)
  40
  41 /* Get option values. */
  42 #define O_LEN(sp, o)            (sp)->opts[(o)].len
  43 #define O_STR(sp, o)            (sp)->opts[(o)].o_u.str
  44 #define O_VAL(sp, o)            (sp)->opts[(o)].o_u.val
  45
  46 /* Option routines. */
  47 enum optdisp { NO_DISPLAY, ALL_DISPLAY, CHANGED_DISPLAY, SELECT_DISPLAY };
  48
  49 int     opts_copy __P((SCR *, SCR *));
  50 void    opts_dump __P((SCR *, enum optdisp));
  51 void    opts_free __P((SCR *));
  52 int     opts_init __P((SCR *));
  53 int     opts_save __P((SCR *, FILE *));
  54 int     opts_set __P((SCR *, ARGS *[]));
  55
  56 /* Per-option change routines. */
  57 int     f_altwerase __P((SCR *, OPTION *, char *, u_long));
  58 int     f_columns __P((SCR *, OPTION *, char *, u_long));
  59 int     f_keytime __P((SCR *, OPTION *, char *, u_long));
  60 int     f_leftright __P((SCR *, OPTION *, char *, u_long));
  61 int     f_lines __P((SCR *, OPTION *, char *, u_long));
  62 int     f_lisp __P((SCR *, OPTION *, char *, u_long));
  63 int     f_list __P((SCR *, OPTION *, char *, u_long));
  64 int     f_matchtime __P((SCR *, OPTION *, char *, u_long));
  65 int     f_mesg __P((SCR *, OPTION *, char *, u_long));
  66 int     f_modeline __P((SCR *, OPTION *, char *, u_long));
  67 int     f_number __P((SCR *, OPTION *, char *, u_long));
  68 int     f_optimize __P((SCR *, OPTION *, char *, u_long));
  69 int     f_paragraph __P((SCR *, OPTION *, char *, u_long));
  70 int     f_readonly __P((SCR *, OPTION *, char *, u_long));
  71 int     f_ruler __P((SCR *, OPTION *, char *, u_long));
  72 int     f_section __P((SCR *, OPTION *, char *, u_long));
  73 int     f_shiftwidth __P((SCR *, OPTION *, char *, u_long));
  74 int     f_sidescroll __P((SCR *, OPTION *, char *, u_long));
  75 int     f_tabstop __P((SCR *, OPTION *, char *, u_long));
  76 int     f_tags __P((SCR *, OPTION *, char *, u_long));
  77 int     f_term __P((SCR *, OPTION *, char *, u_long));
  78 int     f_ttywerase __P((SCR *, OPTION *, char *, u_long));
  79 int     f_w1200 __P((SCR *, OPTION *, char *, u_long));
  80 int     f_w300 __P((SCR *, OPTION *, char *, u_long));
  81 int     f_w9600 __P((SCR *, OPTION *, char *, u_long));
  82 int     f_window __P((SCR *, OPTION *, char *, u_long));
  83 int     f_wrapmargin __P((SCR *, OPTION *, char *, u_long));