1 /* @(#)cmd2.c 8.1 (Berkeley) 6/6/93 */ 2 /* $NetBSD: cmd2.c,v 1.7 2009/04/14 08:50:06 lukem 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 #include "defs.h" 37 38 const char *help_shortcmd[] = { 39 "# Select window # and return to conversation mode", 40 "%# Select window # but stay in command mode", 41 "escape Return to conversation mode without changing window", 42 "^^ Return to conversation mode and change to previous window", 43 "c# Close window #", 44 "w Open a new window", 45 "m# Move window #", 46 "M# Move window # to its previous position", 47 "s# Change the size of window #", 48 "S# Change window # to its previous size", 49 "^Y Scroll up one line", 50 "^E Scroll down one line", 51 "^U Scroll up half a window", 52 "^D Scroll down half a window", 53 "^B Scroll up a full window", 54 "^F Scroll down a full window", 55 "h Move cursor left", 56 "j Move cursor down", 57 "k Move cursor up", 58 "l Move cursor right", 59 "y Yank", 60 "p Put", 61 "^S Stop output in current window", 62 "^Q Restart output in current window", 63 "^L Redraw screen", 64 "^Z Suspend", 65 "q Quit", 66 ": Enter a long command", 67 0 68 }; 69 70 const char *help_longcmd[] = { 71 ":alias name string ... Make `name' an alias for `string ...'", 72 ":alias Show all aliases", 73 ":close # ... Close windows", 74 ":close all Close all windows", 75 ":cursor modes Set the cursor modes", 76 ":echo # string ... Print `string ...' in window #", 77 ":escape c Set escape character to `c'", 78 ":foreground # flag Make # a foreground window, if `flag' is true", 79 ":label # string Set label of window # to `string'", 80 ":list List all open windows", 81 ":default_nline lines Set default window buffer size to `lines'", 82 ":default_shell string ...", 83 " Set default shell to `string ...'", 84 ":default_smooth flag Set default smooth scroll flag", 85 ":select # Select window #", 86 ":smooth # flag Set window # to smooth scroll mode", 87 ":source filename Execute commands in `filename'", 88 ":terse flag Set terse mode", 89 ":unalias name Undefine `name' as an alias", 90 ":unset variable Deallocate `variable'", 91 ":variable List all variables", 92 ":window [row col nrow ncol nline label pty frame mapnl keepopen smooth shell]", 93 " Open a window at `row', `col' of size `nrow', `ncol',", 94 " with `nline' lines in the buffer, and `label'", 95 ":write # string ... Write `string ...' to window # as input", 96 0 97 }; 98 99 int help_print(struct ww *, const char *, const char **); 100 101 void 102 c_help(void) 103 { 104 struct ww *w; 105 106 if ((w = openiwin(wwnrow - 3, "Help")) == NULL) { 107 error("Can't open help window: %s.", wwerror()); 108 return; 109 } 110 wwprintf(w, "The escape character is %c.\n", escapec); 111 wwprintf(w, "(# represents one of the digits from 1 to 9.)\n\n"); 112 if (help_print(w, "Short commands", help_shortcmd) >= 0) 113 (void) help_print(w, "Long commands", help_longcmd); 114 closeiwin(w); 115 } 116 117 int 118 help_print(struct ww *w, const char *name, const char **list) 119 { 120 wwprintf(w, "%s:\n\n", name); 121 while (*list) 122 switch (more(w, 0)) { 123 case 0: 124 wwputs(*list++, w); 125 wwputc('\n', w); 126 break; 127 case 1: 128 wwprintf(w, "%s: (continued)\n\n", name); 129 break; 130 case 2: 131 return -1; 132 } 133 return more(w, 1) == 2 ? -1 : 0; 134 } 135 136 void 137 c_quit(void) 138 { 139 char oldterse = terse; 140 141 setterse(0); 142 wwputs("Really quit [yn]? ", cmdwin); 143 wwcurtowin(cmdwin); 144 while (wwpeekc() < 0) 145 wwiomux(); 146 if (wwgetc() == 'y') { 147 wwputs("Yes", cmdwin); 148 quit++; 149 } else 150 wwputc('\n', cmdwin); 151 setterse(!quit && oldterse); 152 } 153