varnish-cache/bin/varnishtest/teken_scs.h
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/*-
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 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 *
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 * Copyright (c) 2009 Ed Schouten <ed@FreeBSD.org>
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * $FreeBSD: head/sys/teken/teken_scs.h 332297 2018-04-08 19:23:50Z phk $
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 */
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static inline teken_char_t
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teken_scs_process(const teken_t *t, teken_char_t c)
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{
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        return (t->t_scs[t->t_curscs](t, c));
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}
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/* Unicode points for VT100 box drawing. */
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static const uint16_t teken_boxdrawing_unicode[31] = {
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    0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1,
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    0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba,
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    0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c,
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    0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7
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};
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/* ASCII points for VT100 box drawing. */
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static const uint8_t teken_boxdrawing_8bit[31] = {
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    '?', '?', 'H', 'F', 'C', 'L', '?', '?',
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    'N', 'V', '+', '+', '+', '+', '+', '-',
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    '-', '-', '-', '-', '+', '+', '+', '+',
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    '|', '?', '?', '?', '?', '?', '?',
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};
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static teken_char_t
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teken_scs_special_graphics(const teken_t *t, teken_char_t c)
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{
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        /* Box drawing. */
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        if (c >= '`' && c <= '~')
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                return (t->t_stateflags & TS_8BIT ?
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                    teken_boxdrawing_8bit[c - '`'] :
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                    teken_boxdrawing_unicode[c - '`']);
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        return (c);
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}
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static teken_char_t
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teken_scs_uk_national(const teken_t *t, teken_char_t c)
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{
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        /* Pound sign. */
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        if (c == '#')
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                return (t->t_stateflags & TS_8BIT ? 0x9c : 0xa3);
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        return (c);
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}
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static teken_char_t
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teken_scs_us_ascii(const teken_t *t, teken_char_t c)
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{
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        /* No processing. */
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        (void)t;
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        return (c);
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}