| | varnish-cache/bin/varnishtest/vtest2/src/teken.c |
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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) 2008-2009 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.c 333683 2018-05-16 18:12:49Z cem $ |
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*/ |
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|
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#include "config.h" |
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|
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#include <sys/types.h> |
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#include <limits.h> |
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#include <stdint.h> |
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#include <stdio.h> |
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#include <string.h> |
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#define teken_assert(x) assert(x) |
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|
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#include "vdef.h" |
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#include "vas.h" |
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|
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/* debug messages */ |
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#define teken_printf(...) |
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|
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/* Private flags for t_stateflags. */ |
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#define TS_FIRSTDIGIT 0x0001 /* First numeric digit in escape sequence. */ |
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#define TS_INSERT 0x0002 /* Insert mode. */ |
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#define TS_AUTOWRAP 0x0004 /* Autowrap. */ |
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#define TS_ORIGIN 0x0008 /* Origin mode. */ |
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#define TS_WRAPPED 0x0010 /* Next character should be printed on col 0. */ |
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#define TS_8BIT 0x0020 /* UTF-8 disabled. */ |
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#define TS_CONS25 0x0040 /* cons25 emulation. */ |
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#define TS_INSTRING 0x0080 /* Inside string. */ |
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#define TS_CURSORKEYS 0x0100 /* Cursor keys mode. */ |
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|
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/* Character that blanks a cell. */ |
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#define BLANK ' ' |
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|
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#include "teken.h" |
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#include "teken_wcwidth.h" |
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#include "teken_scs.h" |
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|
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static teken_state_t teken_state_init; |
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|
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/* |
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* Wrappers for hooks. |
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*/ |
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|
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static inline void |
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6 |
teken_funcs_bell(const teken_t *t) |
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{ |
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|
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6 |
if (t->t_funcs->tf_bell != NULL) |
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0 |
t->t_funcs->tf_bell(t->t_softc); |
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6 |
} |
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|
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static inline void |
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94657 |
teken_funcs_cursor(const teken_t *t) |
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{ |
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|
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94657 |
teken_assert(t->t_cursor.tp_row < t->t_winsize.tp_row); |
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94657 |
teken_assert(t->t_cursor.tp_col < t->t_winsize.tp_col); |
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|
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94657 |
teken_assert(t->t_funcs->tf_cursor != NULL); |
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94657 |
t->t_funcs->tf_cursor(t->t_softc, &t->t_cursor); |
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94657 |
} |
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|
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static inline void |
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85873 |
teken_funcs_putchar(const teken_t *t, const teken_pos_t *p, teken_char_t c, |
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const teken_attr_t *a) |
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{ |
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|
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85873 |
teken_assert(p->tp_row < t->t_winsize.tp_row); |
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85873 |
teken_assert(p->tp_col < t->t_winsize.tp_col); |
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|
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85873 |
teken_assert(t->t_funcs->tf_putchar != NULL); |
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85873 |
t->t_funcs->tf_putchar(t->t_softc, p, c, a); |
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85873 |
} |
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|
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static inline void |
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1111 |
teken_funcs_fill(const teken_t *t, const teken_rect_t *r, |
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const teken_char_t c, const teken_attr_t *a) |
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{ |
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|
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1111 |
teken_assert(r->tr_end.tp_row > r->tr_begin.tp_row); |
| 106 |
1111 |
teken_assert(r->tr_end.tp_row <= t->t_winsize.tp_row); |
| 107 |
1111 |
teken_assert(r->tr_end.tp_col > r->tr_begin.tp_col); |
| 108 |
1111 |
teken_assert(r->tr_end.tp_col <= t->t_winsize.tp_col); |
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|
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1111 |
teken_assert(t->t_funcs->tf_fill != NULL); |
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1111 |
t->t_funcs->tf_fill(t->t_softc, r, c, a); |
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1111 |
} |
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|
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static inline void |
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1013 |
teken_funcs_copy(const teken_t *t, const teken_rect_t *r, const teken_pos_t *p) |
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{ |
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|
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1013 |
teken_assert(r->tr_end.tp_row > r->tr_begin.tp_row); |
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1013 |
teken_assert(r->tr_end.tp_row <= t->t_winsize.tp_row); |
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1013 |
teken_assert(r->tr_end.tp_col > r->tr_begin.tp_col); |
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1013 |
teken_assert(r->tr_end.tp_col <= t->t_winsize.tp_col); |
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1013 |
teken_assert(p->tp_row + (r->tr_end.tp_row - r->tr_begin.tp_row) <= t->t_winsize.tp_row); |
| 123 |
1013 |
teken_assert(p->tp_col + (r->tr_end.tp_col - r->tr_begin.tp_col) <= t->t_winsize.tp_col); |
| 124 |
|
|
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1013 |
teken_assert(t->t_funcs->tf_copy != NULL); |
| 126 |
1013 |
t->t_funcs->tf_copy(t->t_softc, r, p); |
| 127 |
1013 |
} |
| 128 |
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|
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static inline void |
| 130 |
2550 |
teken_funcs_pre_input(const teken_t *t) |
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{ |
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|
| 133 |
2550 |
if (t->t_funcs->tf_pre_input != NULL) |
| 134 |
0 |
t->t_funcs->tf_pre_input(t->t_softc); |
| 135 |
2550 |
} |
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|
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static inline void |
| 138 |
2550 |
teken_funcs_post_input(const teken_t *t) |
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{ |
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|
| 141 |
2550 |
if (t->t_funcs->tf_post_input != NULL) |
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0 |
t->t_funcs->tf_post_input(t->t_softc); |
| 143 |
2550 |
} |
| 144 |
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|
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static inline void |
| 146 |
96 |
teken_funcs_param(const teken_t *t, int cmd, unsigned int value) |
| 147 |
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{ |
| 148 |
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|
| 149 |
96 |
teken_assert(t->t_funcs->tf_param != NULL); |
| 150 |
96 |
t->t_funcs->tf_param(t->t_softc, cmd, value); |
| 151 |
96 |
} |
| 152 |
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|
| 153 |
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static inline void |
| 154 |
8 |
teken_funcs_respond(const teken_t *t, const void *buf, size_t len) |
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{ |
| 156 |
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|
| 157 |
8 |
teken_assert(t->t_funcs->tf_respond != NULL); |
| 158 |
8 |
t->t_funcs->tf_respond(t->t_softc, buf, len); |
| 159 |
8 |
} |
| 160 |
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|
| 161 |
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#include "teken_subr.h" |
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#include "teken_subr_compat.h" |
| 163 |
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|
| 164 |
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/* |
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* Programming interface. |
| 166 |
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*/ |
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|
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void |
| 169 |
48 |
teken_init(teken_t *t, const teken_funcs_t *tf, void *softc) |
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{ |
| 171 |
48 |
teken_pos_t tp = { .tp_row = 24, .tp_col = 80 }; |
| 172 |
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|
| 173 |
48 |
t->t_funcs = tf; |
| 174 |
48 |
t->t_softc = softc; |
| 175 |
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|
| 176 |
48 |
t->t_nextstate = teken_state_init; |
| 177 |
48 |
t->t_stateflags = 0; |
| 178 |
48 |
t->t_utf8_left = 0; |
| 179 |
|
|
| 180 |
48 |
t->t_defattr.ta_format = 0; |
| 181 |
48 |
t->t_defattr.ta_fgcolor = TC_WHITE; |
| 182 |
48 |
t->t_defattr.ta_bgcolor = TC_BLACK; |
| 183 |
48 |
teken_subr_do_reset(t); |
| 184 |
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|
| 185 |
48 |
teken_set_winsize(t, &tp); |
| 186 |
48 |
} |
| 187 |
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|
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static void |
| 189 |
124602 |
teken_input_char(teken_t *t, teken_char_t c) |
| 190 |
|
{ |
| 191 |
|
|
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/* |
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* There is no support for DCS and OSC. Just discard strings |
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* until we receive characters that may indicate string |
| 195 |
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* termination. |
| 196 |
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*/ |
| 197 |
124602 |
if (t->t_stateflags & TS_INSTRING) { |
| 198 |
22 |
switch (c) { |
| 199 |
|
case '\x1B': |
| 200 |
2 |
t->t_stateflags &= ~TS_INSTRING; |
| 201 |
2 |
break; |
| 202 |
|
case '\a': |
| 203 |
0 |
t->t_stateflags &= ~TS_INSTRING; |
| 204 |
0 |
return; |
| 205 |
|
default: |
| 206 |
20 |
return; |
| 207 |
|
} |
| 208 |
2 |
} |
| 209 |
|
|
| 210 |
124582 |
switch (c) { |
| 211 |
|
case '\0': |
| 212 |
0 |
break; |
| 213 |
|
case '\a': |
| 214 |
6 |
teken_subr_bell(t); |
| 215 |
6 |
break; |
| 216 |
|
case '\b': |
| 217 |
660 |
teken_subr_backspace(t); |
| 218 |
660 |
break; |
| 219 |
|
case '\n': |
| 220 |
|
case '\x0B': |
| 221 |
1202 |
teken_subr_newline(t); |
| 222 |
1202 |
break; |
| 223 |
|
case '\x0C': |
| 224 |
4 |
teken_subr_newpage(t); |
| 225 |
4 |
break; |
| 226 |
|
case '\x0E': |
| 227 |
3 |
if (t->t_stateflags & TS_CONS25) |
| 228 |
1 |
t->t_nextstate(t, c); |
| 229 |
|
else |
| 230 |
2 |
t->t_curscs = 1; |
| 231 |
3 |
break; |
| 232 |
|
case '\x0F': |
| 233 |
45 |
if (t->t_stateflags & TS_CONS25) |
| 234 |
1 |
t->t_nextstate(t, c); |
| 235 |
|
else |
| 236 |
44 |
t->t_curscs = 0; |
| 237 |
45 |
break; |
| 238 |
|
case '\r': |
| 239 |
1602 |
teken_subr_carriage_return(t); |
| 240 |
1602 |
break; |
| 241 |
|
case '\t': |
| 242 |
77 |
teken_subr_horizontal_tab(t); |
| 243 |
77 |
break; |
| 244 |
|
default: |
| 245 |
120983 |
t->t_nextstate(t, c); |
| 246 |
120983 |
break; |
| 247 |
|
} |
| 248 |
|
|
| 249 |
|
/* Post-processing assertions. */ |
| 250 |
124582 |
teken_assert(t->t_cursor.tp_row >= t->t_originreg.ts_begin); |
| 251 |
124582 |
teken_assert(t->t_cursor.tp_row < t->t_originreg.ts_end); |
| 252 |
124582 |
teken_assert(t->t_cursor.tp_row < t->t_winsize.tp_row); |
| 253 |
124582 |
teken_assert(t->t_cursor.tp_col < t->t_winsize.tp_col); |
| 254 |
124582 |
teken_assert(t->t_saved_cursor.tp_row < t->t_winsize.tp_row); |
| 255 |
124582 |
teken_assert(t->t_saved_cursor.tp_col < t->t_winsize.tp_col); |
| 256 |
124582 |
teken_assert(t->t_scrollreg.ts_end <= t->t_winsize.tp_row); |
| 257 |
124582 |
teken_assert(t->t_scrollreg.ts_begin < t->t_scrollreg.ts_end); |
| 258 |
|
/* Origin region has to be window size or the same as scrollreg. */ |
| 259 |
124582 |
teken_assert((t->t_originreg.ts_begin == t->t_scrollreg.ts_begin && |
| 260 |
|
t->t_originreg.ts_end == t->t_scrollreg.ts_end) || |
| 261 |
|
(t->t_originreg.ts_begin == 0 && |
| 262 |
|
t->t_originreg.ts_end == t->t_winsize.tp_row)); |
| 263 |
124602 |
} |
| 264 |
|
|
| 265 |
|
static void |
| 266 |
124617 |
teken_input_byte(teken_t *t, unsigned char c) |
| 267 |
|
{ |
| 268 |
|
|
| 269 |
|
/* |
| 270 |
|
* UTF-8 handling. |
| 271 |
|
*/ |
| 272 |
124617 |
if ((c & 0x80) == 0x00 || t->t_stateflags & TS_8BIT) { |
| 273 |
|
/* One-byte sequence. */ |
| 274 |
124596 |
t->t_utf8_left = 0; |
| 275 |
124596 |
teken_input_char(t, c); |
| 276 |
124617 |
} else if ((c & 0xe0) == 0xc0) { |
| 277 |
|
/* Two-byte sequence. */ |
| 278 |
1 |
t->t_utf8_left = 1; |
| 279 |
1 |
t->t_utf8_partial = c & 0x1f; |
| 280 |
21 |
} else if ((c & 0xf0) == 0xe0) { |
| 281 |
|
/* Three-byte sequence. */ |
| 282 |
1 |
t->t_utf8_left = 2; |
| 283 |
1 |
t->t_utf8_partial = c & 0x0f; |
| 284 |
20 |
} else if ((c & 0xf8) == 0xf0) { |
| 285 |
|
/* Four-byte sequence. */ |
| 286 |
4 |
t->t_utf8_left = 3; |
| 287 |
4 |
t->t_utf8_partial = c & 0x07; |
| 288 |
19 |
} else if ((c & 0xc0) == 0x80) { |
| 289 |
15 |
if (t->t_utf8_left == 0) |
| 290 |
0 |
return; |
| 291 |
15 |
t->t_utf8_left--; |
| 292 |
15 |
t->t_utf8_partial = (t->t_utf8_partial << 6) | (c & 0x3f); |
| 293 |
15 |
if (t->t_utf8_left == 0) { |
| 294 |
|
teken_printf("Got UTF-8 char %x\n", t->t_utf8_partial); |
| 295 |
6 |
teken_input_char(t, t->t_utf8_partial); |
| 296 |
6 |
} |
| 297 |
15 |
} |
| 298 |
124617 |
} |
| 299 |
|
|
| 300 |
|
void |
| 301 |
2550 |
teken_input(teken_t *t, const void *buf, size_t len) |
| 302 |
|
{ |
| 303 |
2550 |
const char *c = buf; |
| 304 |
|
|
| 305 |
2550 |
teken_funcs_pre_input(t); |
| 306 |
127167 |
while (len-- > 0) |
| 307 |
124617 |
teken_input_byte(t, *c++); |
| 308 |
2550 |
teken_funcs_post_input(t); |
| 309 |
2550 |
} |
| 310 |
|
|
| 311 |
|
const teken_pos_t * |
| 312 |
106 |
teken_get_cursor(const teken_t *t) |
| 313 |
|
{ |
| 314 |
|
|
| 315 |
106 |
return (&t->t_cursor); |
| 316 |
|
} |
| 317 |
|
|
| 318 |
|
void |
| 319 |
48 |
teken_set_cursor(teken_t *t, const teken_pos_t *p) |
| 320 |
|
{ |
| 321 |
|
|
| 322 |
|
/* XXX: bounds checking with originreg! */ |
| 323 |
48 |
teken_assert(p->tp_row < t->t_winsize.tp_row); |
| 324 |
48 |
teken_assert(p->tp_col < t->t_winsize.tp_col); |
| 325 |
|
|
| 326 |
48 |
t->t_cursor = *p; |
| 327 |
48 |
} |
| 328 |
|
|
| 329 |
|
const teken_attr_t * |
| 330 |
48 |
teken_get_curattr(const teken_t *t) |
| 331 |
|
{ |
| 332 |
|
|
| 333 |
48 |
return (&t->t_curattr); |
| 334 |
|
} |
| 335 |
|
|
| 336 |
|
void |
| 337 |
48 |
teken_set_curattr(teken_t *t, const teken_attr_t *a) |
| 338 |
|
{ |
| 339 |
|
|
| 340 |
48 |
t->t_curattr = *a; |
| 341 |
48 |
} |
| 342 |
|
|
| 343 |
|
const teken_attr_t * |
| 344 |
48 |
teken_get_defattr(const teken_t *t) |
| 345 |
|
{ |
| 346 |
|
|
| 347 |
48 |
return (&t->t_defattr); |
| 348 |
|
} |
| 349 |
|
|
| 350 |
|
void |
| 351 |
48 |
teken_set_defattr(teken_t *t, const teken_attr_t *a) |
| 352 |
|
{ |
| 353 |
|
|
| 354 |
48 |
t->t_curattr = t->t_saved_curattr = t->t_defattr = *a; |
| 355 |
48 |
} |
| 356 |
|
|
| 357 |
|
const teken_pos_t * |
| 358 |
48 |
teken_get_winsize(const teken_t *t) |
| 359 |
|
{ |
| 360 |
|
|
| 361 |
48 |
return (&t->t_winsize); |
| 362 |
|
} |
| 363 |
|
|
| 364 |
|
static void |
| 365 |
122 |
teken_trim_cursor_pos(teken_t *t, const teken_pos_t *new) |
| 366 |
|
{ |
| 367 |
|
const teken_pos_t *cur; |
| 368 |
|
|
| 369 |
122 |
cur = &t->t_winsize; |
| 370 |
|
|
| 371 |
122 |
if (cur->tp_row < new->tp_row || cur->tp_col < new->tp_col) |
| 372 |
61 |
return; |
| 373 |
61 |
if (t->t_cursor.tp_row >= new->tp_row) |
| 374 |
0 |
t->t_cursor.tp_row = new->tp_row - 1; |
| 375 |
61 |
if (t->t_cursor.tp_col >= new->tp_col) |
| 376 |
2 |
t->t_cursor.tp_col = new->tp_col - 1; |
| 377 |
122 |
} |
| 378 |
|
|
| 379 |
|
void |
| 380 |
122 |
teken_set_winsize(teken_t *t, const teken_pos_t *p) |
| 381 |
|
{ |
| 382 |
|
|
| 383 |
122 |
teken_trim_cursor_pos(t, p); |
| 384 |
122 |
t->t_winsize = *p; |
| 385 |
122 |
teken_subr_do_reset(t); |
| 386 |
122 |
} |
| 387 |
|
|
| 388 |
|
void |
| 389 |
0 |
teken_set_winsize_noreset(teken_t *t, const teken_pos_t *p) |
| 390 |
|
{ |
| 391 |
|
|
| 392 |
0 |
teken_trim_cursor_pos(t, p); |
| 393 |
0 |
t->t_winsize = *p; |
| 394 |
0 |
teken_subr_do_resize(t); |
| 395 |
0 |
} |
| 396 |
|
|
| 397 |
|
void |
| 398 |
0 |
teken_set_8bit(teken_t *t) |
| 399 |
|
{ |
| 400 |
|
|
| 401 |
0 |
t->t_stateflags |= TS_8BIT; |
| 402 |
0 |
} |
| 403 |
|
|
| 404 |
|
void |
| 405 |
0 |
teken_set_cons25(teken_t *t) |
| 406 |
|
{ |
| 407 |
|
|
| 408 |
0 |
t->t_stateflags |= TS_CONS25; |
| 409 |
0 |
} |
| 410 |
|
|
| 411 |
|
/* |
| 412 |
|
* State machine. |
| 413 |
|
*/ |
| 414 |
|
|
| 415 |
|
static void |
| 416 |
19977 |
teken_state_switch(teken_t *t, teken_state_t *s) |
| 417 |
|
{ |
| 418 |
|
|
| 419 |
19977 |
t->t_nextstate = s; |
| 420 |
19977 |
t->t_curnum = 0; |
| 421 |
19977 |
t->t_stateflags |= TS_FIRSTDIGIT; |
| 422 |
19977 |
} |
| 423 |
|
|
| 424 |
|
static int |
| 425 |
21503 |
teken_state_numbers(teken_t *t, teken_char_t c) |
| 426 |
|
{ |
| 427 |
|
|
| 428 |
21503 |
teken_assert(t->t_curnum < T_NUMSIZE); |
| 429 |
|
|
| 430 |
21503 |
if (c >= '0' && c <= '9') { |
| 431 |
12699 |
if (t->t_stateflags & TS_FIRSTDIGIT) { |
| 432 |
|
/* First digit. */ |
| 433 |
8286 |
t->t_stateflags &= ~TS_FIRSTDIGIT; |
| 434 |
8286 |
t->t_nums[t->t_curnum] = c - '0'; |
| 435 |
12699 |
} else if (t->t_nums[t->t_curnum] < UINT_MAX / 100) { |
| 436 |
|
/* |
| 437 |
|
* There is no need to continue parsing input |
| 438 |
|
* once the value exceeds the size of the |
| 439 |
|
* terminal. It would only allow for integer |
| 440 |
|
* overflows when performing arithmetic on the |
| 441 |
|
* cursor position. |
| 442 |
|
* |
| 443 |
|
* Ignore any further digits if the value is |
| 444 |
|
* already UINT_MAX / 100. |
| 445 |
|
*/ |
| 446 |
4413 |
t->t_nums[t->t_curnum] = |
| 447 |
4413 |
t->t_nums[t->t_curnum] * 10 + c - '0'; |
| 448 |
4413 |
} |
| 449 |
12699 |
return (1); |
| 450 |
8804 |
} else if (c == ';') { |
| 451 |
2590 |
if (t->t_stateflags & TS_FIRSTDIGIT) |
| 452 |
24 |
t->t_nums[t->t_curnum] = 0; |
| 453 |
|
|
| 454 |
|
/* Only allow a limited set of arguments. */ |
| 455 |
2590 |
if (++t->t_curnum == T_NUMSIZE) { |
| 456 |
1 |
teken_state_switch(t, teken_state_init); |
| 457 |
1 |
return (1); |
| 458 |
|
} |
| 459 |
|
|
| 460 |
2589 |
t->t_stateflags |= TS_FIRSTDIGIT; |
| 461 |
2589 |
return (1); |
| 462 |
|
} else { |
| 463 |
6214 |
if (t->t_stateflags & TS_FIRSTDIGIT && t->t_curnum > 0) { |
| 464 |
|
/* Finish off the last empty argument. */ |
| 465 |
1 |
t->t_nums[t->t_curnum] = 0; |
| 466 |
1 |
t->t_curnum++; |
| 467 |
6214 |
} else if ((t->t_stateflags & TS_FIRSTDIGIT) == 0) { |
| 468 |
|
/* Also count the last argument. */ |
| 469 |
5720 |
t->t_curnum++; |
| 470 |
5720 |
} |
| 471 |
|
} |
| 472 |
|
|
| 473 |
6214 |
return (0); |
| 474 |
21503 |
} |
| 475 |
|
|
| 476 |
|
#define k TC_BLACK |
| 477 |
|
#define b TC_BLUE |
| 478 |
|
#define y TC_BROWN |
| 479 |
|
#define c TC_CYAN |
| 480 |
|
#define g TC_GREEN |
| 481 |
|
#define m TC_MAGENTA |
| 482 |
|
#define r TC_RED |
| 483 |
|
#define w TC_WHITE |
| 484 |
|
#define K (TC_BLACK | TC_LIGHT) |
| 485 |
|
#define B (TC_BLUE | TC_LIGHT) |
| 486 |
|
#define Y (TC_BROWN | TC_LIGHT) |
| 487 |
|
#define C (TC_CYAN | TC_LIGHT) |
| 488 |
|
#define G (TC_GREEN | TC_LIGHT) |
| 489 |
|
#define M (TC_MAGENTA | TC_LIGHT) |
| 490 |
|
#define R (TC_RED | TC_LIGHT) |
| 491 |
|
#define W (TC_WHITE | TC_LIGHT) |
| 492 |
|
|
| 493 |
|
/** |
| 494 |
|
* The xterm-256 color map has steps of 0x28 (in the range 0-0xff), except |
| 495 |
|
* for the first step which is 0x5f. Scale to the range 0-6 by dividing |
| 496 |
|
* by 0x28 and rounding down. The range of 0-5 cannot represent the |
| 497 |
|
* larger first step. |
| 498 |
|
* |
| 499 |
|
* This table is generated by the follow rules: |
| 500 |
|
* - if all components are equal, the result is black for (0, 0, 0) and |
| 501 |
|
* (2, 2, 2), else white; otherwise: |
| 502 |
|
* - subtract the smallest component from all components |
| 503 |
|
* - if this gives only one nonzero component, then that is the color |
| 504 |
|
* - else if one component is 2 or more larger than the other nonzero one, |
| 505 |
|
* then that component gives the color |
| 506 |
|
* - else there are 2 nonzero components. The color is that of a small |
| 507 |
|
* equal mixture of these components (cyan, yellow or magenta). E.g., |
| 508 |
|
* (0, 5, 6) (Turquoise2) is a much purer cyan than (0, 2, 3) |
| 509 |
|
* (DeepSkyBlue4), but we map both to cyan since we can't represent |
| 510 |
|
* delicate shades of either blue or cyan and blue would be worse. |
| 511 |
|
* Here it is important that components of 1 never occur. Blue would |
| 512 |
|
* be twice as large as green in (0, 1, 2). |
| 513 |
|
*/ |
| 514 |
|
static const teken_color_t teken_256to8tab[] = { |
| 515 |
|
/* xterm normal colors: */ |
| 516 |
|
k, r, g, y, b, m, c, w, |
| 517 |
|
|
| 518 |
|
/* xterm bright colors: */ |
| 519 |
|
k, r, g, y, b, m, c, w, |
| 520 |
|
|
| 521 |
|
/* Red0 submap. */ |
| 522 |
|
k, b, b, b, b, b, |
| 523 |
|
g, c, c, b, b, b, |
| 524 |
|
g, c, c, c, b, b, |
| 525 |
|
g, g, c, c, c, b, |
| 526 |
|
g, g, g, c, c, c, |
| 527 |
|
g, g, g, g, c, c, |
| 528 |
|
|
| 529 |
|
/* Red2 submap. */ |
| 530 |
|
r, m, m, b, b, b, |
| 531 |
|
y, k, b, b, b, b, |
| 532 |
|
y, g, c, c, b, b, |
| 533 |
|
g, g, c, c, c, b, |
| 534 |
|
g, g, g, c, c, c, |
| 535 |
|
g, g, g, g, c, c, |
| 536 |
|
|
| 537 |
|
/* Red3 submap. */ |
| 538 |
|
r, m, m, m, b, b, |
| 539 |
|
y, r, m, m, b, b, |
| 540 |
|
y, y, w, b, b, b, |
| 541 |
|
y, y, g, c, c, b, |
| 542 |
|
g, g, g, c, c, c, |
| 543 |
|
g, g, g, g, c, c, |
| 544 |
|
|
| 545 |
|
/* Red4 submap. */ |
| 546 |
|
r, r, m, m, m, b, |
| 547 |
|
r, r, m, m, m, b, |
| 548 |
|
y, y, r, m, m, b, |
| 549 |
|
y, y, y, w, b, b, |
| 550 |
|
y, y, y, g, c, c, |
| 551 |
|
g, g, g, g, c, c, |
| 552 |
|
|
| 553 |
|
/* Red5 submap. */ |
| 554 |
|
r, r, r, m, m, m, |
| 555 |
|
r, r, r, m, m, m, |
| 556 |
|
r, r, r, m, m, m, |
| 557 |
|
y, y, y, r, m, m, |
| 558 |
|
y, y, y, y, w, b, |
| 559 |
|
y, y, y, y, g, c, |
| 560 |
|
|
| 561 |
|
/* Red6 submap. */ |
| 562 |
|
r, r, r, r, m, m, |
| 563 |
|
r, r, r, r, m, m, |
| 564 |
|
r, r, r, r, m, m, |
| 565 |
|
r, r, r, r, m, m, |
| 566 |
|
y, y, y, y, r, m, |
| 567 |
|
y, y, y, y, y, w, |
| 568 |
|
|
| 569 |
|
/* Grey submap. */ |
| 570 |
|
k, k, k, k, k, k, |
| 571 |
|
k, k, k, k, k, k, |
| 572 |
|
w, w, w, w, w, w, |
| 573 |
|
w, w, w, w, w, w, |
| 574 |
|
}; |
| 575 |
|
|
| 576 |
|
/* |
| 577 |
|
* This table is generated from the previous one by setting TC_LIGHT for |
| 578 |
|
* entries whose luminosity in the xterm256 color map is 60% or larger. |
| 579 |
|
* Thus the previous table is currently not really needed. It will be |
| 580 |
|
* used for different fine tuning of the tables. |
| 581 |
|
*/ |
| 582 |
|
static const teken_color_t teken_256to16tab[] = { |
| 583 |
|
/* xterm normal colors: */ |
| 584 |
|
k, r, g, y, b, m, c, w, |
| 585 |
|
|
| 586 |
|
/* xterm bright colors: */ |
| 587 |
|
K, R, G, Y, B, M, C, W, |
| 588 |
|
|
| 589 |
|
/* Red0 submap. */ |
| 590 |
|
k, b, b, b, b, b, |
| 591 |
|
g, c, c, b, b, b, |
| 592 |
|
g, c, c, c, b, b, |
| 593 |
|
g, g, c, c, c, b, |
| 594 |
|
g, g, g, c, c, c, |
| 595 |
|
g, g, g, g, c, c, |
| 596 |
|
|
| 597 |
|
/* Red2 submap. */ |
| 598 |
|
r, m, m, b, b, b, |
| 599 |
|
y, K, b, b, B, B, |
| 600 |
|
y, g, c, c, B, B, |
| 601 |
|
g, g, c, c, C, B, |
| 602 |
|
g, G, G, C, C, C, |
| 603 |
|
g, G, G, G, C, C, |
| 604 |
|
|
| 605 |
|
/* Red3 submap. */ |
| 606 |
|
r, m, m, m, b, b, |
| 607 |
|
y, r, m, m, B, B, |
| 608 |
|
y, y, w, B, B, B, |
| 609 |
|
y, y, G, C, C, B, |
| 610 |
|
g, G, G, C, C, C, |
| 611 |
|
g, G, G, G, C, C, |
| 612 |
|
|
| 613 |
|
/* Red4 submap. */ |
| 614 |
|
r, r, m, m, m, b, |
| 615 |
|
r, r, m, m, M, B, |
| 616 |
|
y, y, R, M, M, B, |
| 617 |
|
y, y, Y, W, B, B, |
| 618 |
|
y, Y, Y, G, C, C, |
| 619 |
|
g, G, G, G, C, C, |
| 620 |
|
|
| 621 |
|
/* Red5 submap. */ |
| 622 |
|
r, r, r, m, m, m, |
| 623 |
|
r, R, R, M, M, M, |
| 624 |
|
r, R, R, M, M, M, |
| 625 |
|
y, Y, Y, R, M, M, |
| 626 |
|
y, Y, Y, Y, W, B, |
| 627 |
|
y, Y, Y, Y, G, C, |
| 628 |
|
|
| 629 |
|
/* Red6 submap. */ |
| 630 |
|
r, r, r, r, m, m, |
| 631 |
|
r, R, R, R, M, M, |
| 632 |
|
r, R, R, R, M, M, |
| 633 |
|
r, R, R, R, M, M, |
| 634 |
|
y, Y, Y, Y, R, M, |
| 635 |
|
y, Y, Y, Y, Y, W, |
| 636 |
|
|
| 637 |
|
/* Grey submap. */ |
| 638 |
|
k, k, k, k, k, k, |
| 639 |
|
K, K, K, K, K, K, |
| 640 |
|
w, w, w, w, w, w, |
| 641 |
|
W, W, W, W, W, W, |
| 642 |
|
}; |
| 643 |
|
|
| 644 |
|
#undef k |
| 645 |
|
#undef b |
| 646 |
|
#undef y |
| 647 |
|
#undef c |
| 648 |
|
#undef g |
| 649 |
|
#undef m |
| 650 |
|
#undef r |
| 651 |
|
#undef w |
| 652 |
|
#undef K |
| 653 |
|
#undef B |
| 654 |
|
#undef Y |
| 655 |
|
#undef C |
| 656 |
|
#undef G |
| 657 |
|
#undef M |
| 658 |
|
#undef R |
| 659 |
|
#undef W |
| 660 |
|
|
| 661 |
|
teken_color_t |
| 662 |
144 |
teken_256to8(teken_color_t c) |
| 663 |
|
{ |
| 664 |
|
|
| 665 |
144 |
return (teken_256to8tab[c % 256]); |
| 666 |
|
} |
| 667 |
|
|
| 668 |
|
teken_color_t |
| 669 |
48 |
teken_256to16(teken_color_t c) |
| 670 |
|
{ |
| 671 |
|
|
| 672 |
48 |
return (teken_256to16tab[c % 256]); |
| 673 |
|
} |
| 674 |
|
|
| 675 |
|
static const char * const special_strings_cons25[] = { |
| 676 |
|
[TKEY_UP] = "\x1B[A", [TKEY_DOWN] = "\x1B[B", |
| 677 |
|
[TKEY_LEFT] = "\x1B[D", [TKEY_RIGHT] = "\x1B[C", |
| 678 |
|
|
| 679 |
|
[TKEY_HOME] = "\x1B[H", [TKEY_END] = "\x1B[F", |
| 680 |
|
[TKEY_INSERT] = "\x1B[L", [TKEY_DELETE] = "\x7F", |
| 681 |
|
[TKEY_PAGE_UP] = "\x1B[I", [TKEY_PAGE_DOWN] = "\x1B[G", |
| 682 |
|
|
| 683 |
|
[TKEY_F1] = "\x1B[M", [TKEY_F2] = "\x1B[N", |
| 684 |
|
[TKEY_F3] = "\x1B[O", [TKEY_F4] = "\x1B[P", |
| 685 |
|
[TKEY_F5] = "\x1B[Q", [TKEY_F6] = "\x1B[R", |
| 686 |
|
[TKEY_F7] = "\x1B[S", [TKEY_F8] = "\x1B[T", |
| 687 |
|
[TKEY_F9] = "\x1B[U", [TKEY_F10] = "\x1B[V", |
| 688 |
|
[TKEY_F11] = "\x1B[W", [TKEY_F12] = "\x1B[X", |
| 689 |
|
}; |
| 690 |
|
|
| 691 |
|
static const char * const special_strings_ckeys[] = { |
| 692 |
|
[TKEY_UP] = "\x1BOA", [TKEY_DOWN] = "\x1BOB", |
| 693 |
|
[TKEY_LEFT] = "\x1BOD", [TKEY_RIGHT] = "\x1BOC", |
| 694 |
|
|
| 695 |
|
[TKEY_HOME] = "\x1BOH", [TKEY_END] = "\x1BOF", |
| 696 |
|
}; |
| 697 |
|
|
| 698 |
|
static const char * const special_strings_normal[] = { |
| 699 |
|
[TKEY_UP] = "\x1B[A", [TKEY_DOWN] = "\x1B[B", |
| 700 |
|
[TKEY_LEFT] = "\x1B[D", [TKEY_RIGHT] = "\x1B[C", |
| 701 |
|
|
| 702 |
|
[TKEY_HOME] = "\x1B[H", [TKEY_END] = "\x1B[F", |
| 703 |
|
[TKEY_INSERT] = "\x1B[2~", [TKEY_DELETE] = "\x1B[3~", |
| 704 |
|
[TKEY_PAGE_UP] = "\x1B[5~", [TKEY_PAGE_DOWN] = "\x1B[6~", |
| 705 |
|
|
| 706 |
|
[TKEY_F1] = "\x1BOP", [TKEY_F2] = "\x1BOQ", |
| 707 |
|
[TKEY_F3] = "\x1BOR", [TKEY_F4] = "\x1BOS", |
| 708 |
|
[TKEY_F5] = "\x1B[15~", [TKEY_F6] = "\x1B[17~", |
| 709 |
|
[TKEY_F7] = "\x1B[18~", [TKEY_F8] = "\x1B[19~", |
| 710 |
|
[TKEY_F9] = "\x1B[20~", [TKEY_F10] = "\x1B[21~", |
| 711 |
|
[TKEY_F11] = "\x1B[23~", [TKEY_F12] = "\x1B[24~", |
| 712 |
|
}; |
| 713 |
|
|
| 714 |
|
const char * |
| 715 |
96 |
teken_get_sequence(const teken_t *t, unsigned int k) |
| 716 |
|
{ |
| 717 |
|
|
| 718 |
|
/* Cons25 mode. */ |
| 719 |
96 |
if (t->t_stateflags & TS_CONS25 && |
| 720 |
0 |
k < sizeof special_strings_cons25 / sizeof(char *)) |
| 721 |
0 |
return (special_strings_cons25[k]); |
| 722 |
|
|
| 723 |
|
/* Cursor keys mode. */ |
| 724 |
96 |
if (t->t_stateflags & TS_CURSORKEYS && |
| 725 |
0 |
k < sizeof special_strings_ckeys / sizeof(char *)) |
| 726 |
0 |
return (special_strings_ckeys[k]); |
| 727 |
|
|
| 728 |
|
/* Default xterm sequences. */ |
| 729 |
96 |
if (k < sizeof special_strings_normal / sizeof(char *)) |
| 730 |
96 |
return (special_strings_normal[k]); |
| 731 |
|
|
| 732 |
0 |
return (NULL); |
| 733 |
96 |
} |
| 734 |
|
|
| 735 |
|
#include "teken_state.h" |