teken_scs.h revision 187469
1187469Sed/*- 2187469Sed * Copyright (c) 2009 Ed Schouten <ed@FreeBSD.org> 3187469Sed * All rights reserved. 4187469Sed * 5187469Sed * Redistribution and use in source and binary forms, with or without 6187469Sed * modification, are permitted provided that the following conditions 7187469Sed * are met: 8187469Sed * 1. Redistributions of source code must retain the above copyright 9187469Sed * notice, this list of conditions and the following disclaimer. 10187469Sed * 2. Redistributions in binary form must reproduce the above copyright 11187469Sed * notice, this list of conditions and the following disclaimer in the 12187469Sed * documentation and/or other materials provided with the distribution. 13187469Sed * 14187469Sed * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15187469Sed * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16187469Sed * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17187469Sed * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18187469Sed * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19187469Sed * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20187469Sed * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21187469Sed * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22187469Sed * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23187469Sed * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24187469Sed * SUCH DAMAGE. 25187469Sed * 26187469Sed * $FreeBSD: head/sys/dev/syscons/teken/teken_scs.h 187469 2009-01-20 11:34:28Z ed $ 27187469Sed */ 28187469Sed 29187469Sedstatic void 30187469Sedteken_scs_set(teken_t *t, unsigned int g, teken_scs_t *ts) 31187469Sed{ 32187469Sed 33187469Sed t->t_scs[g] = ts; 34187469Sed} 35187469Sed 36187469Sedstatic void 37187469Sedteken_scs_switch(teken_t *t, unsigned int g) 38187469Sed{ 39187469Sed 40187469Sed t->t_curscs = g; 41187469Sed} 42187469Sed 43187469Sedstatic void 44187469Sedteken_scs_restore(teken_t *t) 45187469Sed{ 46187469Sed 47187469Sed t->t_scs[t->t_curscs] = t->t_saved_curscs; 48187469Sed} 49187469Sed 50187469Sedstatic void 51187469Sedteken_scs_save(teken_t *t) 52187469Sed{ 53187469Sed 54187469Sed t->t_saved_curscs = t->t_scs[t->t_curscs]; 55187469Sed} 56187469Sed 57187469Sedstatic teken_char_t 58187469Sedteken_scs_process(teken_t *t, teken_char_t c) 59187469Sed{ 60187469Sed 61187469Sed return (t->t_scs[t->t_curscs](c)); 62187469Sed} 63187469Sed 64187469Sed/* Unicode points for VT100 box drawing. */ 65187469Sedstatic const teken_char_t teken_boxdrawing[31] = { 66187469Sed 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, 67187469Sed 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, 68187469Sed 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, 69187469Sed 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7 70187469Sed}; 71187469Sed 72187469Sedstatic teken_char_t 73187469Sedteken_scs_special_graphics(teken_char_t c) 74187469Sed{ 75187469Sed 76187469Sed /* Box drawing. */ 77187469Sed if (c >= '`' && c <= '~') 78187469Sed return (teken_boxdrawing[c - '`']); 79187469Sed return (c); 80187469Sed} 81187469Sed 82187469Sedstatic teken_char_t 83187469Sedteken_scs_uk_national(teken_char_t c) 84187469Sed{ 85187469Sed 86187469Sed /* Pound sign. */ 87187469Sed if (c == '#') 88187469Sed return (0xa3); 89187469Sed return (c); 90187469Sed} 91187469Sed 92187469Sedstatic teken_char_t 93187469Sedteken_scs_us_ascii(teken_char_t c) 94187469Sed{ 95187469Sed 96187469Sed /* No processing. */ 97187469Sed return (c); 98187469Sed} 99