usr.bin/window/cmd2.c

   1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Edward Wang at The University of California, Berkeley.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * @(#)cmd2.c   8.1 (Berkeley) 6/6/93
  37  * $FreeBSD: src/usr.bin/window/cmd2.c,v 1.1.1.1.14.1 2001/05/17 09:45:00 obrien Exp $
  38  * $DragonFly: src/usr.bin/window/cmd2.c,v 1.3 2005/04/15 17:55:29 drhodus Exp $
  39  */
  40
  41 #include "defs.h"
  42
  43 char *help_shortcmd[] = {
  44         "#       Select window # and return to conversation mode",
  45         "%#      Select window # but stay in command mode",
  46         "escape  Return to conversation mode without changing window",
  47         "^^      Return to conversation mode and change to previous window",
  48         "c#      Close window #",
  49         "w       Open a new window",
  50         "m#      Move window #",
  51         "M#      Move window # to its previous position",
  52         "s#      Change the size of window #",
  53         "S#      Change window # to its previous size",
  54         "^Y      Scroll up one line",
  55         "^E      Scroll down one line",
  56         "^U      Scroll up half a window",
  57         "^D      Scroll down half a window",
  58         "^B      Scroll up a full window",
  59         "^F      Scroll down a full window",
  60         "h       Move cursor left",
  61         "j       Move cursor down",
  62         "k       Move cursor up",
  63         "l       Move cursor right",
  64         "y       Yank",
  65         "p       Put",
  66         "^S      Stop output in current window",
  67         "^Q      Restart output in current window",
  68         "^L      Redraw screen",
  69         "^Z      Suspend",
  70         "q       Quit",
  71         ":       Enter a long command",
  72         0
  73 };
  74 char *help_longcmd[] = {
  75         ":alias name string ...  Make `name' an alias for `string ...'",
  76         ":alias                  Show all aliases",
  77         ":close # ...            Close windows",
  78         ":close all              Close all windows",
  79         ":cursor modes           Set the cursor modes",
  80         ":echo # string ...      Print `string ...' in window #",
  81         ":escape c               Set escape character to `c'",
  82         ":foreground # flag      Make # a foreground window, if `flag' is true",
  83         ":label # string         Set label of window # to `string'",
  84         ":list                   List all open windows",
  85         ":default_nline lines    Set default window buffer size to `lines'",
  86         ":default_shell string ...",
  87         "                        Set default shell to `string ...'",
  88         ":default_smooth flag    Set default smooth scroll flag",
  89         ":select #               Select window #",
  90         ":smooth # flag          Set window # to smooth scroll mode",
  91         ":source filename        Execute commands in `filename'",
  92         ":terse flag             Set terse mode",
  93         ":unalias name           Undefine `name' as an alias",
  94         ":unset variable         Deallocate `variable'",
  95         ":variable               List all variables",
  96         ":window [row col nrow ncol nline label pty frame mapnl keepopen smooth shell]",
  97         "                        Open a window at `row', `col' of size `nrow', `ncol',",
  98         "                        with `nline' lines in the buffer, and `label'",
  99         ":write # string ...     Write `string ...' to window # as input",
 100         0
 101 };
 102
 103 c_help()
 104 {
 105         struct ww *w;
 106
 107         if ((w = openiwin(wwnrow - 3, "Help")) == 0) {
 108                 error("Can't open help window: %s.", wwerror());
 109                 return;
 110         }
 111         wwprintf(w, "The escape character is %c.\n", escapec);
 112         wwprintf(w, "(# represents one of the digits from 1 to 9.)\n\n");
 113         if (help_print(w, "Short commands", help_shortcmd) >= 0)
 114                 (void) help_print(w, "Long commands", help_longcmd);
 115         closeiwin(w);
 116 }
 117
 118 help_print(w, name, list)
 119 struct ww *w;
 120 char *name;
 121 char **list;
 122 {
 123         wwprintf(w, "%s:\n\n", name);
 124         while (*list)
 125                 switch (more(w, 0)) {
 126                 case 0:
 127                         wwputs(*list++, w);
 128                         wwputc('\n', w);
 129                         break;
 130                 case 1:
 131                         wwprintf(w, "%s: (continued)\n\n", name);
 132                         break;
 133                 case 2:
 134                         return -1;
 135                 }
 136         return more(w, 1) == 2 ? -1 : 0;
 137 }
 138
 139 c_quit()
 140 {
 141         char oldterse = terse;
 142
 143         setterse(0);
 144         wwputs("Really quit [yn]? ", cmdwin);
 145         wwcurtowin(cmdwin);
 146         while (wwpeekc() < 0)
 147                 wwiomux();
 148         if (wwgetc() == 'y') {
 149                 wwputs("Yes", cmdwin);
 150                 quit++;
 151         } else
 152                 wwputc('\n', cmdwin);
 153         setterse(!quit && oldterse);
 154 }