1 /* $OpenBSD: cmd2.c,v 1.5 2003/06/03 02:56:23 millert Exp $ */
2 /* $NetBSD: cmd2.c,v 1.3 1995/09/28 10:34:05 tls Exp $ */
3
4 /*
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)cmd2.c 8.1 (Berkeley) 6/6/93";
39 #else
40 static char rcsid[] = "$OpenBSD: cmd2.c,v 1.5 2003/06/03 02:56:23 millert Exp $";
41 #endif
42 #endif /* not lint */
43
44 #include "defs.h"
45
46 char *help_shortcmd[] = {
47 "# Select window # and return to conversation mode",
48 "%# Select window # but stay in command mode",
49 "escape Return to conversation mode without changing window",
50 "^^ Return to conversation mode and change to previous window",
51 "c# Close window #",
52 "w Open a new window",
53 "m# Move window #",
54 "M# Move window # to its previous position",
55 "s# Change the size of window #",
56 "S# Change window # to its previous size",
57 "^Y Scroll up one line",
58 "^E Scroll down one line",
59 "^U Scroll up half a window",
60 "^D Scroll down half a window",
61 "^B Scroll up a full window",
62 "^F Scroll down a full window",
63 "h Move cursor left",
64 "j Move cursor down",
65 "k Move cursor up",
66 "l Move cursor right",
67 "y Yank",
68 "p Put",
69 "^S Stop output in current window",
70 "^Q Restart output in current window",
71 "^L Redraw screen",
72 "^Z Suspend",
73 "q Quit",
74 ": Enter a long command",
75 0
76 };
77 char *help_longcmd[] = {
78 ":alias name string ... Make `name' an alias for `string ...'",
79 ":alias Show all aliases",
80 ":close # ... Close windows",
81 ":close all Close all windows",
82 ":cursor modes Set the cursor modes",
83 ":echo # string ... Print `string ...' in window #",
84 ":escape c Set escape character to `c'",
85 ":foreground # flag Make # a foreground window, if `flag' is true",
86 ":label # string Set label of window # to `string'",
87 ":list List all open windows",
88 ":default_nline lines Set default window buffer size to `lines'",
89 ":default_shell string ...",
90 " Set default shell to `string ...'",
91 ":default_smooth flag Set default smooth scroll flag",
92 ":select # Select window #",
93 ":smooth # flag Set window # to smooth scroll mode",
94 ":source filename Execute commands in `filename'",
95 ":terse flag Set terse mode",
96 ":unalias name Undefine `name' as an alias",
97 ":unset variable Deallocate `variable'",
98 ":variable List all variables",
99 ":window [row col nrow ncol nline label pty frame mapnl keepopen smooth shell]",
100 " Open a window at `row', `col' of size `nrow', `ncol',",
101 " with `nline' lines in the buffer, and `label'",
102 ":write # string ... Write `string ...' to window # as input",
103 0
104 };
105
c_help()106 c_help()
107 {
108 struct ww *w;
109
110 if ((w = openiwin(wwnrow - 3, "Help")) == 0) {
111 error("Can't open help window: %s.", wwerror());
112 return;
113 }
114 wwprintf(w, "The escape character is %c.\n", escapec);
115 wwprintf(w, "(# represents one of the digits from 1 to 9.)\n\n");
116 if (help_print(w, "Short commands", help_shortcmd) >= 0)
117 (void) help_print(w, "Long commands", help_longcmd);
118 closeiwin(w);
119 }
120
121 help_print(w, name, list)
122 struct ww *w;
123 char *name;
124 char **list;
125 {
126 wwprintf(w, "%s:\n\n", name);
127 while (*list)
128 switch (more(w, 0)) {
129 case 0:
130 wwputs(*list++, w);
131 wwputc('\n', w);
132 break;
133 case 1:
134 wwprintf(w, "%s: (continued)\n\n", name);
135 break;
136 case 2:
137 return -1;
138 }
139 return more(w, 1) == 2 ? -1 : 0;
140 }
141
c_quit()142 c_quit()
143 {
144 char oldterse = terse;
145
146 setterse(0);
147 wwputs("Really quit [yn]? ", cmdwin);
148 wwcurtowin(cmdwin);
149 while (wwpeekc() < 0)
150 wwiomux();
151 if (wwgetc() == 'y') {
152 wwputs("Yes", cmdwin);
153 quit++;
154 } else
155 wwputc('\n', cmdwin);
156 setterse(!quit && oldterse);
157 }
158