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Annotation of 43BSDTahoe/ucb/window/cmd2.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)cmd2.c     3.36 (Berkeley) 6/29/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: #include "defs.h"
        !            23: 
        !            24: char *help_shortcmd[] = {
        !            25:        "#       Select window # and return to conversation mode",
        !            26:        "%#      Select window # but stay in command mode",
        !            27:        "escape  Return to conversation mode without changing window",
        !            28:        "^^      Return to conversation mode and change to previous window",
        !            29:        "c#      Close window #",
        !            30:        "w       Open a new window",
        !            31:        "m#      Move window #",
        !            32:        "M#      Move window # to its previous position",
        !            33:        "s#      Change the size of window #",
        !            34:        "S#      Change window # to its previous size",
        !            35:        "^Y      Scroll up one line",
        !            36:        "^E      Scroll down one line",
        !            37:        "^U      Scroll up half a window",
        !            38:        "^D      Scroll down half a window",
        !            39:        "^B      Scroll up a full window",
        !            40:        "^F      Scroll down a full window",
        !            41:        "h       Move cursor left",
        !            42:        "j       Move cursor down",
        !            43:        "k       Move cursor up",
        !            44:        "l       Move cursor right",
        !            45:        "^S      Stop output in current window",
        !            46:        "^Q      Restart output in current window",
        !            47:        "^L      Redraw screen",
        !            48:        "^Z      Suspend",
        !            49:        "q       Quit",
        !            50:        ":       Enter a long command",
        !            51:        0
        !            52: };
        !            53: char *help_longcmd[] = {
        !            54:        ":alias name string ...  Make `name' an alias for `string ...'",
        !            55:        ":alias                  Show all aliases",
        !            56:        ":close # ...            Close windows",
        !            57:        ":close all              Close all windows",
        !            58:        ":cursor modes           Set the cursor modes",
        !            59:        ":echo # string ...      Print `string ...' in window #",
        !            60:        ":escape c               Set escape character to `c'",
        !            61:        ":foreground # flag      Make # a foreground window, if `flag' is true",
        !            62:        ":label # string         Set label of window # to `string'",
        !            63:        ":list                   List all open windows",
        !            64:        ":nline lines            Set default window buffer size to `lines'",
        !            65:        ":select #               Select window #",
        !            66:        ":shell string ...       Set default shell program to `string ...'",
        !            67:        ":smooth # flag          Set window # to smooth scroll mode",
        !            68:        ":source filename        Execute commands in `filename'",
        !            69:        ":terse flag             Set terse mode",
        !            70:        ":unalias name           Undefine `name' as an alias",
        !            71:        ":unset variable         Deallocate `variable'",
        !            72:        ":variable               List all variables",
        !            73:        ":window [row col nrow ncol nline label pty frame mapnl keepopen smooth shell]",
        !            74:        "                        Open a window at `row', `col' of size `nrow', `ncol',",
        !            75:        "                        with `nline' lines in the buffer, and `label'",
        !            76:        ":write # string ...     Write `string ...' to window # as input",
        !            77:        0
        !            78: };
        !            79: 
        !            80: c_help()
        !            81: {
        !            82:        register struct ww *w;
        !            83: 
        !            84:        if ((w = openiwin(wwnrow - 3, "Help")) == 0) {
        !            85:                error("Can't open help window: %s.", wwerror());
        !            86:                return;
        !            87:        }
        !            88:        wwprintf(w, "The escape character is %c.\n", escapec);
        !            89:        wwprintf(w, "(# represents one of the digits from 1 to 9.)\n\n");
        !            90:        if (help_print(w, "Short commands", help_shortcmd) >= 0)
        !            91:                (void) help_print(w, "Long commands", help_longcmd);
        !            92:        closeiwin(w);
        !            93: }
        !            94: 
        !            95: help_print(w, name, list)
        !            96: register struct ww *w;
        !            97: char *name;
        !            98: register char **list;
        !            99: {
        !           100:        wwprintf(w, "%s:\n\n", name);
        !           101:        while (*list)
        !           102:                switch (more(w, 0)) {
        !           103:                case 0:
        !           104:                        wwputs(*list++, w);
        !           105:                        wwputc('\n', w);
        !           106:                        break;
        !           107:                case 1:
        !           108:                        wwprintf(w, "%s: (continued)\n\n", name);
        !           109:                        break;
        !           110:                case 2:
        !           111:                        return -1;
        !           112:                }
        !           113:        return more(w, 1) == 2 ? -1 : 0;
        !           114: }
        !           115: 
        !           116: c_quit()
        !           117: {
        !           118:        char oldterse = terse;
        !           119: 
        !           120:        setterse(0);
        !           121:        wwputs("Really quit [yn]? ", cmdwin);
        !           122:        wwcurtowin(cmdwin);
        !           123:        while (wwpeekc() < 0)
        !           124:                wwiomux();
        !           125:        if (wwgetc() == 'y') {
        !           126:                wwputs("Yes", cmdwin);
        !           127:                quit++;
        !           128:        } else
        !           129:                wwputc('\n', cmdwin);
        !           130:        setterse(!quit && oldterse);
        !           131: }

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