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Annotation of src/usr.bin/tmux/tty-acs.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD: tty-term.c,v 1.16 2009/12/03 22:50:10 nicm Exp $ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2010 Nicholas Marriott <nicm@users.sourceforge.net>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
        !            15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
        !            16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/types.h>
        !            20:
        !            21: #include <stdlib.h>
        !            22:
        !            23: #include "tmux.h"
        !            24:
        !            25: int    tty_acs_cmp(const void *, const void *);
        !            26:
        !            27: /* Table mapping ACS entries to UTF-8. */
        !            28: struct tty_acs_entry {
        !            29:        u_char           key;
        !            30:        const char      *string;
        !            31: };
        !            32: const struct tty_acs_entry tty_acs_table[] = {
        !            33:        { '+', "\342\206\222" },
        !            34:        { ',', "\342\206\220" },
        !            35:        { '-', "\342\206\221" },
        !            36:        { '.', "\342\206\223" },
        !            37:        { '0', "\342\226\256" },
        !            38:        { '`', "\342\227\206" },
        !            39:        { 'a', "\342\226\222" },
        !            40:        { 'f', "\302\260" },
        !            41:        { 'g', "\302\261" },
        !            42:        { 'h', "\342\226\222" },
        !            43:        { 'i', "\342\230\203" },
        !            44:        { 'j', "\342\224\230" },
        !            45:        { 'k', "\342\224\220" },
        !            46:        { 'l', "\342\224\214" },
        !            47:        { 'm', "\342\224\224" },
        !            48:        { 'n', "\342\224\274" },
        !            49:        { 'o', "\342\216\272" },
        !            50:        { 'p', "\342\216\273" },
        !            51:        { 'q', "\342\224\200" },
        !            52:        { 'r', "\342\216\274" },
        !            53:        { 's', "\342\216\275" },
        !            54:        { 't', "\342\224\234" },
        !            55:        { 'u', "\342\224\244" },
        !            56:        { 'v', "\342\224\264" },
        !            57:        { 'w', "\342\224\254" },
        !            58:        { 'x', "\342\224\202" },
        !            59:        { 'y', "\342\211\244" },
        !            60:        { 'z', "\342\211\245" },
        !            61:        { '{', "\317\200" },
        !            62:        { '|', "\342\211\240" },
        !            63:        { '}', "\302\243" },
        !            64:        { '~', "\302\267" }
        !            65: };
        !            66:
        !            67: int
        !            68: tty_acs_cmp(const void *key, const void *value)
        !            69: {
        !            70:        const struct tty_acs_entry      *entry = value;
        !            71:        u_char                           ch;
        !            72:
        !            73:        ch = *(u_char *) key;
        !            74:        return (ch - entry->key);
        !            75: }
        !            76:
        !            77: /* Retrieve ACS to output as a string. */
        !            78: const char *
        !            79: tty_acs_get(struct tty *tty, u_char ch)
        !            80: {
        !            81:        struct tty_acs_entry *entry;
        !            82:
        !            83:        /* If not a UTF-8 terminal, use the ACS set. */
        !            84:        if (!(tty->flags & TTY_UTF8)) {
        !            85:                if (tty->term->acs[ch][0] == '\0')
        !            86:                        return (NULL);
        !            87:                return (&tty->term->acs[ch][0]);
        !            88:        }
        !            89:
        !            90:        /* Otherwise look up the UTF-8 translation. */
        !            91:        entry = bsearch(&ch,
        !            92:            tty_acs_table, nitems(tty_acs_table), sizeof tty_acs_table[0],
        !            93:            tty_acs_cmp);
        !            94:        if (entry == NULL)
        !            95:                return (NULL);
        !            96:        return (entry->string);
        !            97: }