window/cmd2.c

   1 /*      $NetBSD: cmd2.c,v 1.4 1997/11/21 08:35:47 lukem Exp $   */
   2
   3 /*
   4  * Copyright (c) 1983, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Edward Wang at The University of California, Berkeley.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by the University of
  21  *      California, Berkeley and its contributors.
  22  * 4. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include <sys/cdefs.h>
  40 #ifndef lint
  41 #if 0
  42 static char sccsid[] = "@(#)cmd2.c      8.1 (Berkeley) 6/6/93";
  43 #else
  44 __RCSID("$NetBSD: cmd2.c,v 1.4 1997/11/21 08:35:47 lukem Exp $");
  45 #endif
  46 #endif /* not lint */
  47
  48 #include "defs.h"
  49
  50 char *help_shortcmd[] = {
  51         "#       Select window # and return to conversation mode",
  52         "%#      Select window # but stay in command mode",
  53         "escape  Return to conversation mode without changing window",
  54         "^^      Return to conversation mode and change to previous window",
  55         "c#      Close window #",
  56         "w       Open a new window",
  57         "m#      Move window #",
  58         "M#      Move window # to its previous position",
  59         "s#      Change the size of window #",
  60         "S#      Change window # to its previous size",
  61         "^Y      Scroll up one line",
  62         "^E      Scroll down one line",
  63         "^U      Scroll up half a window",
  64         "^D      Scroll down half a window",
  65         "^B      Scroll up a full window",
  66         "^F      Scroll down a full window",
  67         "h       Move cursor left",
  68         "j       Move cursor down",
  69         "k       Move cursor up",
  70         "l       Move cursor right",
  71         "y       Yank",
  72         "p       Put",
  73         "^S      Stop output in current window",
  74         "^Q      Restart output in current window",
  75         "^L      Redraw screen",
  76         "^Z      Suspend",
  77         "q       Quit",
  78         ":       Enter a long command",
  79         0
  80 };
  81
  82 char *help_longcmd[] = {
  83         ":alias name string ...  Make `name' an alias for `string ...'",
  84         ":alias                  Show all aliases",
  85         ":close # ...            Close windows",
  86         ":close all              Close all windows",
  87         ":cursor modes           Set the cursor modes",
  88         ":echo # string ...      Print `string ...' in window #",
  89         ":escape c               Set escape character to `c'",
  90         ":foreground # flag      Make # a foreground window, if `flag' is true",
  91         ":label # string         Set label of window # to `string'",
  92         ":list                   List all open windows",
  93         ":default_nline lines    Set default window buffer size to `lines'",
  94         ":default_shell string ...",
  95         "                        Set default shell to `string ...'",
  96         ":default_smooth flag    Set default smooth scroll flag",
  97         ":select #               Select window #",
  98         ":smooth # flag          Set window # to smooth scroll mode",
  99         ":source filename        Execute commands in `filename'",
 100         ":terse flag             Set terse mode",
 101         ":unalias name           Undefine `name' as an alias",
 102         ":unset variable         Deallocate `variable'",
 103         ":variable               List all variables",
 104         ":window [row col nrow ncol nline label pty frame mapnl keepopen smooth shell]",
 105         "                        Open a window at `row', `col' of size `nrow', `ncol',",
 106         "                        with `nline' lines in the buffer, and `label'",
 107         ":write # string ...     Write `string ...' to window # as input",
 108         0
 109 };
 110
 111 int     help_print __P((struct ww *, char *, char **));
 112
 113 void
 114 c_help()
 115 {
 116         struct ww *w;
 117
 118         if ((w = openiwin(wwnrow - 3, "Help")) == 0) {
 119                 error("Can't open help window: %s.", wwerror());
 120                 return;
 121         }
 122         wwprintf(w, "The escape character is %c.\n", escapec);
 123         wwprintf(w, "(# represents one of the digits from 1 to 9.)\n\n");
 124         if (help_print(w, "Short commands", help_shortcmd) >= 0)
 125                 (void) help_print(w, "Long commands", help_longcmd);
 126         closeiwin(w);
 127 }
 128
 129 int
 130 help_print(w, name, list)
 131         struct ww *w;
 132         char *name;
 133         char **list;
 134 {
 135         wwprintf(w, "%s:\n\n", name);
 136         while (*list)
 137                 switch (more(w, 0)) {
 138                 case 0:
 139                         wwputs(*list++, w);
 140                         wwputc('\n', w);
 141                         break;
 142                 case 1:
 143                         wwprintf(w, "%s: (continued)\n\n", name);
 144                         break;
 145                 case 2:
 146                         return -1;
 147                 }
 148         return more(w, 1) == 2 ? -1 : 0;
 149 }
 150
 151 void
 152 c_quit()
 153 {
 154         char oldterse = terse;
 155
 156         setterse(0);
 157         wwputs("Really quit [yn]? ", cmdwin);
 158         wwcurtowin(cmdwin);
 159         while (wwpeekc() < 0)
 160                 wwiomux();
 161         if (wwgetc() == 'y') {
 162                 wwputs("Yes", cmdwin);
 163                 quit++;
 164         } else
 165                 wwputc('\n', cmdwin);
 166         setterse(!quit && oldterse);
 167 }