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
  37 #ifndef lint
  38 static char sccsid[] = "@(#)cmd2.c      8.1 (Berkeley) 6/6/93";
  39 static char rcsid[] =
  40   "$FreeBSD$";
  41 #endif /* not lint */
  42
  43 #include "defs.h"
  44
  45 char *help_shortcmd[] = {
  46         "#       Select window # and return to conversation mode",
  47         "%#      Select window # but stay in command mode",
  48         "escape  Return to conversation mode without changing window",
  49         "^^      Return to conversation mode and change to previous window",
  50         "c#      Close window #",
  51         "w       Open a new window",
  52         "m#      Move window #",
  53         "M#      Move window # to its previous position",
  54         "s#      Change the size of window #",
  55         "S#      Change window # to its previous size",
  56         "^Y      Scroll up one line",
  57         "^E      Scroll down one line",
  58         "^U      Scroll up half a window",
  59         "^D      Scroll down half a window",
  60         "^B      Scroll up a full window",
  61         "^F      Scroll down a full window",
  62         "h       Move cursor left",
  63         "j       Move cursor down",
  64         "k       Move cursor up",
  65         "l       Move cursor right",
  66         "y       Yank",
  67         "p       Put",
  68         "^S      Stop output in current window",
  69         "^Q      Restart output in current window",
  70         "^L      Redraw screen",
  71         "^Z      Suspend",
  72         "q       Quit",
  73         ":       Enter a long command",
  74         0
  75 };
  76 char *help_longcmd[] = {
  77         ":alias name string ...  Make `name' an alias for `string ...'",
  78         ":alias                  Show all aliases",
  79         ":close # ...            Close windows",
  80         ":close all              Close all windows",
  81         ":cursor modes           Set the cursor modes",
  82         ":echo # string ...      Print `string ...' in window #",
  83         ":escape c               Set escape character to `c'",
  84         ":foreground # flag      Make # a foreground window, if `flag' is true",
  85         ":label # string         Set label of window # to `string'",
  86         ":list                   List all open windows",
  87         ":default_nline lines    Set default window buffer size to `lines'",
  88         ":default_shell string ...",
  89         "                        Set default shell to `string ...'",
  90         ":default_smooth flag    Set default smooth scroll flag",
  91         ":select #               Select window #",
  92         ":smooth # flag          Set window # to smooth scroll mode",
  93         ":source filename        Execute commands in `filename'",
  94         ":terse flag             Set terse mode",
  95         ":unalias name           Undefine `name' as an alias",
  96         ":unset variable         Deallocate `variable'",
  97         ":variable               List all variables",
  98         ":window [row col nrow ncol nline label pty frame mapnl keepopen smooth shell]",
  99         "                        Open a window at `row', `col' of size `nrow', `ncol',",
 100         "                        with `nline' lines in the buffer, and `label'",
 101         ":write # string ...     Write `string ...' to window # as input",
 102         0
 103 };
 104
 105 c_help()
 106 {
 107         register struct ww *w;
 108
 109         if ((w = openiwin(wwnrow - 3, "Help")) == 0) {
 110                 error("Can't open help window: %s.", wwerror());
 111                 return;
 112         }
 113         wwprintf(w, "The escape character is %c.\n", escapec);
 114         wwprintf(w, "(# represents one of the digits from 1 to 9.)\n\n");
 115         if (help_print(w, "Short commands", help_shortcmd) >= 0)
 116                 (void) help_print(w, "Long commands", help_longcmd);
 117         closeiwin(w);
 118 }
 119
 120 help_print(w, name, list)
 121 register struct ww *w;
 122 char *name;
 123 register char **list;
 124 {
 125         wwprintf(w, "%s:\n\n", name);
 126         while (*list)
 127                 switch (more(w, 0)) {
 128                 case 0:
 129                         wwputs(*list++, w);
 130                         wwputc('\n', w);
 131                         break;
 132                 case 1:
 133                         wwprintf(w, "%s: (continued)\n\n", name);
 134                         break;
 135                 case 2:
 136                         return -1;
 137                 }
 138         return more(w, 1) == 2 ? -1 : 0;
 139 }
 140
 141 c_quit()
 142 {
 143         char oldterse = terse;
 144
 145         setterse(0);
 146         wwputs("Really quit [yn]? ", cmdwin);
 147         wwcurtowin(cmdwin);
 148         while (wwpeekc() < 0)
 149                 wwiomux();
 150         if (wwgetc() == 'y') {
 151                 wwputs("Yes", cmdwin);
 152                 quit++;
 153         } else
 154                 wwputc('\n', cmdwin);
 155         setterse(!quit && oldterse);
 156 }