teken.c revision 261551
1275970Scy/*- 2275970Scy * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org> 3275970Scy * All rights reserved. 4275970Scy * 5275970Scy * Redistribution and use in source and binary forms, with or without 6275970Scy * modification, are permitted provided that the following conditions 7275970Scy * are met: 8275970Scy * 1. Redistributions of source code must retain the above copyright 9275970Scy * notice, this list of conditions and the following disclaimer. 10275970Scy * 2. Redistributions in binary form must reproduce the above copyright 11275970Scy * notice, this list of conditions and the following disclaimer in the 12275970Scy * documentation and/or other materials provided with the distribution. 13275970Scy * 14275970Scy * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15275970Scy * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16275970Scy * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17275970Scy * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18275970Scy * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19275970Scy * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20275970Scy * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21275970Scy * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22275970Scy * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23275970Scy * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24275970Scy * SUCH DAMAGE. 25275970Scy * 26275970Scy * $FreeBSD: head/sys/teken/teken.c 261551 2014-02-06 13:28:06Z ray $ 27275970Scy */ 28275970Scy 29275970Scy#include <sys/cdefs.h> 30275970Scy#if defined(__FreeBSD__) && defined(_KERNEL) 31275970Scy#include <sys/param.h> 32275970Scy#include <sys/lock.h> 33275970Scy#include <sys/systm.h> 34275970Scy#define teken_assert(x) MPASS(x) 35275970Scy#else /* !(__FreeBSD__ && _KERNEL) */ 36275970Scy#include <sys/types.h> 37275970Scy#include <assert.h> 38275970Scy#include <stdint.h> 39275970Scy#include <stdio.h> 40275970Scy#include <string.h> 41275970Scy#define teken_assert(x) assert(x) 42275970Scy#endif /* __FreeBSD__ && _KERNEL */ 43275970Scy 44275970Scy/* debug messages */ 45275970Scy#define teken_printf(x,...) 46275970Scy 47275970Scy/* Private flags for t_stateflags. */ 48275970Scy#define TS_FIRSTDIGIT 0x0001 /* First numeric digit in escape sequence. */ 49275970Scy#define TS_INSERT 0x0002 /* Insert mode. */ 50275970Scy#define TS_AUTOWRAP 0x0004 /* Autowrap. */ 51275970Scy#define TS_ORIGIN 0x0008 /* Origin mode. */ 52275970Scy#define TS_WRAPPED 0x0010 /* Next character should be printed on col 0. */ 53275970Scy#define TS_8BIT 0x0020 /* UTF-8 disabled. */ 54275970Scy#define TS_CONS25 0x0040 /* cons25 emulation. */ 55275970Scy#define TS_INSTRING 0x0080 /* Inside string. */ 56275970Scy#define TS_CURSORKEYS 0x0100 /* Cursor keys mode. */ 57275970Scy 58275970Scy/* Character that blanks a cell. */ 59275970Scy#define BLANK ' ' 60275970Scy 61275970Scy#include "teken.h" 62275970Scy#include "teken_wcwidth.h" 63275970Scy#include "teken_scs.h" 64275970Scy 65275970Scystatic teken_state_t teken_state_init; 66275970Scy 67275970Scy/* 68275970Scy * Wrappers for hooks. 69275970Scy */ 70275970Scy 71275970Scystatic inline void 72275970Scyteken_funcs_bell(teken_t *t) 73275970Scy{ 74275970Scy 75275970Scy t->t_funcs->tf_bell(t->t_softc); 76275970Scy} 77275970Scy 78275970Scystatic inline void 79275970Scyteken_funcs_cursor(teken_t *t) 80275970Scy{ 81275970Scy 82275970Scy teken_assert(t->t_cursor.tp_row < t->t_winsize.tp_row); 83275970Scy teken_assert(t->t_cursor.tp_col < t->t_winsize.tp_col); 84275970Scy 85275970Scy t->t_funcs->tf_cursor(t->t_softc, &t->t_cursor); 86275970Scy} 87275970Scy 88275970Scystatic inline void 89275970Scyteken_funcs_putchar(teken_t *t, const teken_pos_t *p, teken_char_t c, 90275970Scy const teken_attr_t *a) 91275970Scy{ 92275970Scy 93275970Scy teken_assert(p->tp_row < t->t_winsize.tp_row); 94275970Scy teken_assert(p->tp_col < t->t_winsize.tp_col); 95275970Scy 96275970Scy t->t_funcs->tf_putchar(t->t_softc, p, c, a); 97275970Scy} 98275970Scy 99275970Scystatic inline void 100275970Scyteken_funcs_fill(teken_t *t, const teken_rect_t *r, 101275970Scy const teken_char_t c, const teken_attr_t *a) 102275970Scy{ 103275970Scy 104275970Scy teken_assert(r->tr_end.tp_row > r->tr_begin.tp_row); 105275970Scy teken_assert(r->tr_end.tp_row <= t->t_winsize.tp_row); 106275970Scy teken_assert(r->tr_end.tp_col > r->tr_begin.tp_col); 107275970Scy teken_assert(r->tr_end.tp_col <= t->t_winsize.tp_col); 108275970Scy 109275970Scy t->t_funcs->tf_fill(t->t_softc, r, c, a); 110275970Scy} 111275970Scy 112275970Scystatic inline void 113275970Scyteken_funcs_copy(teken_t *t, const teken_rect_t *r, const teken_pos_t *p) 114275970Scy{ 115275970Scy 116275970Scy teken_assert(r->tr_end.tp_row > r->tr_begin.tp_row); 117275970Scy teken_assert(r->tr_end.tp_row <= t->t_winsize.tp_row); 118275970Scy teken_assert(r->tr_end.tp_col > r->tr_begin.tp_col); 119275970Scy teken_assert(r->tr_end.tp_col <= t->t_winsize.tp_col); 120275970Scy teken_assert(p->tp_row + (r->tr_end.tp_row - r->tr_begin.tp_row) <= t->t_winsize.tp_row); 121275970Scy teken_assert(p->tp_col + (r->tr_end.tp_col - r->tr_begin.tp_col) <= t->t_winsize.tp_col); 122275970Scy 123275970Scy t->t_funcs->tf_copy(t->t_softc, r, p); 124275970Scy} 125275970Scy 126275970Scystatic inline void 127275970Scyteken_funcs_param(teken_t *t, int cmd, unsigned int value) 128275970Scy{ 129275970Scy 130275970Scy t->t_funcs->tf_param(t->t_softc, cmd, value); 131275970Scy} 132275970Scy 133275970Scystatic inline void 134275970Scyteken_funcs_respond(teken_t *t, const void *buf, size_t len) 135275970Scy{ 136275970Scy 137275970Scy t->t_funcs->tf_respond(t->t_softc, buf, len); 138275970Scy} 139275970Scy 140275970Scy#include "teken_subr.h" 141275970Scy#include "teken_subr_compat.h" 142275970Scy 143275970Scy/* 144275970Scy * Programming interface. 145275970Scy */ 146275970Scy 147275970Scyvoid 148275970Scyteken_init(teken_t *t, const teken_funcs_t *tf, void *softc) 149275970Scy{ 150275970Scy teken_pos_t tp = { .tp_row = 24, .tp_col = 80 }; 151275970Scy 152275970Scy t->t_funcs = tf; 153275970Scy t->t_softc = softc; 154275970Scy 155275970Scy t->t_nextstate = teken_state_init; 156275970Scy t->t_stateflags = 0; 157275970Scy t->t_utf8_left = 0; 158275970Scy 159275970Scy t->t_defattr.ta_format = 0; 160275970Scy t->t_defattr.ta_fgcolor = TC_WHITE; 161275970Scy t->t_defattr.ta_bgcolor = TC_BLACK; 162275970Scy teken_subr_do_reset(t); 163275970Scy 164275970Scy teken_set_winsize(t, &tp); 165275970Scy} 166275970Scy 167275970Scystatic void 168275970Scyteken_input_char(teken_t *t, teken_char_t c) 169275970Scy{ 170275970Scy 171275970Scy /* 172275970Scy * There is no support for DCS and OSC. Just discard strings 173275970Scy * until we receive characters that may indicate string 174275970Scy * termination. 175275970Scy */ 176275970Scy if (t->t_stateflags & TS_INSTRING) { 177275970Scy switch (c) { 178275970Scy case '\x1B': 179275970Scy t->t_stateflags &= ~TS_INSTRING; 180275970Scy break; 181275970Scy case '\a': 182275970Scy t->t_stateflags &= ~TS_INSTRING; 183275970Scy return; 184275970Scy default: 185275970Scy return; 186275970Scy } 187275970Scy } 188275970Scy 189275970Scy switch (c) { 190275970Scy case '\0': 191275970Scy break; 192275970Scy case '\a': 193275970Scy teken_subr_bell(t); 194275970Scy break; 195275970Scy case '\b': 196275970Scy teken_subr_backspace(t); 197275970Scy break; 198275970Scy case '\n': 199275970Scy case '\x0B': 200275970Scy teken_subr_newline(t); 201275970Scy break; 202275970Scy case '\x0C': 203275970Scy teken_subr_newpage(t); 204275970Scy break; 205275970Scy case '\x0E': 206275970Scy if (t->t_stateflags & TS_CONS25) 207275970Scy t->t_nextstate(t, c); 208275970Scy else 209275970Scy t->t_curscs = 1; 210275970Scy break; 211275970Scy case '\x0F': 212275970Scy if (t->t_stateflags & TS_CONS25) 213275970Scy t->t_nextstate(t, c); 214275970Scy else 215275970Scy t->t_curscs = 0; 216275970Scy break; 217275970Scy case '\r': 218275970Scy teken_subr_carriage_return(t); 219275970Scy break; 220275970Scy case '\t': 221275970Scy teken_subr_horizontal_tab(t); 222275970Scy break; 223275970Scy default: 224275970Scy t->t_nextstate(t, c); 225275970Scy break; 226275970Scy } 227275970Scy 228275970Scy /* Post-processing assertions. */ 229275970Scy teken_assert(t->t_cursor.tp_row >= t->t_originreg.ts_begin); 230275970Scy teken_assert(t->t_cursor.tp_row < t->t_originreg.ts_end); 231275970Scy teken_assert(t->t_cursor.tp_row < t->t_winsize.tp_row); 232275970Scy teken_assert(t->t_cursor.tp_col < t->t_winsize.tp_col); 233275970Scy teken_assert(t->t_saved_cursor.tp_row < t->t_winsize.tp_row); 234275970Scy teken_assert(t->t_saved_cursor.tp_col < t->t_winsize.tp_col); 235275970Scy teken_assert(t->t_scrollreg.ts_end <= t->t_winsize.tp_row); 236275970Scy teken_assert(t->t_scrollreg.ts_begin < t->t_scrollreg.ts_end); 237275970Scy /* Origin region has to be window size or the same as scrollreg. */ 238275970Scy teken_assert((t->t_originreg.ts_begin == t->t_scrollreg.ts_begin && 239275970Scy t->t_originreg.ts_end == t->t_scrollreg.ts_end) || 240275970Scy (t->t_originreg.ts_begin == 0 && 241275970Scy t->t_originreg.ts_end == t->t_winsize.tp_row)); 242275970Scy} 243275970Scy 244275970Scystatic void 245275970Scyteken_input_byte(teken_t *t, unsigned char c) 246275970Scy{ 247275970Scy 248275970Scy /* 249275970Scy * UTF-8 handling. 250275970Scy */ 251275970Scy if ((c & 0x80) == 0x00 || t->t_stateflags & TS_8BIT) { 252275970Scy /* One-byte sequence. */ 253275970Scy t->t_utf8_left = 0; 254275970Scy teken_input_char(t, c); 255275970Scy } else if ((c & 0xe0) == 0xc0) { 256275970Scy /* Two-byte sequence. */ 257275970Scy t->t_utf8_left = 1; 258275970Scy t->t_utf8_partial = c & 0x1f; 259275970Scy } else if ((c & 0xf0) == 0xe0) { 260275970Scy /* Three-byte sequence. */ 261275970Scy t->t_utf8_left = 2; 262275970Scy t->t_utf8_partial = c & 0x0f; 263275970Scy } else if ((c & 0xf8) == 0xf0) { 264275970Scy /* Four-byte sequence. */ 265275970Scy t->t_utf8_left = 3; 266275970Scy t->t_utf8_partial = c & 0x07; 267275970Scy } else if ((c & 0xc0) == 0x80) { 268275970Scy if (t->t_utf8_left == 0) 269275970Scy return; 270275970Scy t->t_utf8_left--; 271275970Scy t->t_utf8_partial = (t->t_utf8_partial << 6) | (c & 0x3f); 272275970Scy if (t->t_utf8_left == 0) { 273275970Scy teken_printf("Got UTF-8 char %x\n", t->t_utf8_partial); 274275970Scy teken_input_char(t, t->t_utf8_partial); 275275970Scy } 276275970Scy } 277275970Scy} 278275970Scy 279275970Scyvoid 280275970Scyteken_input(teken_t *t, const void *buf, size_t len) 281275970Scy{ 282275970Scy const char *c = buf; 283275970Scy 284275970Scy while (len-- > 0) 285275970Scy teken_input_byte(t, *c++); 286275970Scy} 287275970Scy 288275970Scyconst teken_pos_t * 289275970Scyteken_get_cursor(teken_t *t) 290275970Scy{ 291275970Scy 292275970Scy return (&t->t_cursor); 293275970Scy} 294275970Scy 295275970Scyvoid 296275970Scyteken_set_cursor(teken_t *t, const teken_pos_t *p) 297275970Scy{ 298275970Scy 299275970Scy /* XXX: bounds checking with originreg! */ 300275970Scy teken_assert(p->tp_row < t->t_winsize.tp_row); 301275970Scy teken_assert(p->tp_col < t->t_winsize.tp_col); 302275970Scy 303275970Scy t->t_cursor = *p; 304275970Scy} 305275970Scy 306275970Scyconst teken_attr_t * 307275970Scyteken_get_curattr(teken_t *t) 308275970Scy{ 309275970Scy 310275970Scy return (&t->t_curattr); 311275970Scy} 312275970Scy 313275970Scyvoid 314275970Scyteken_set_curattr(teken_t *t, const teken_attr_t *a) 315275970Scy{ 316275970Scy 317275970Scy t->t_curattr = *a; 318275970Scy} 319275970Scy 320275970Scyconst teken_attr_t * 321275970Scyteken_get_defattr(teken_t *t) 322275970Scy{ 323275970Scy 324275970Scy return (&t->t_defattr); 325275970Scy} 326275970Scy 327275970Scyvoid 328275970Scyteken_set_defattr(teken_t *t, const teken_attr_t *a) 329275970Scy{ 330275970Scy 331275970Scy t->t_curattr = t->t_saved_curattr = t->t_defattr = *a; 332275970Scy} 333275970Scy 334275970Scyconst teken_pos_t * 335275970Scyteken_get_winsize(teken_t *t) 336275970Scy{ 337275970Scy 338275970Scy return (&t->t_winsize); 339275970Scy} 340275970Scy 341275970Scystatic void 342275970Scyteken_trim_cursor_pos(teken_t *t, const teken_pos_t *new) 343275970Scy{ 344275970Scy const teken_pos_t *cur; 345275970Scy 346275970Scy cur = &t->t_winsize; 347275970Scy 348275970Scy if (cur->tp_row < new->tp_row || cur->tp_col < new->tp_col) 349275970Scy return; 350275970Scy if (t->t_cursor.tp_row >= new->tp_row) 351275970Scy t->t_cursor.tp_row = new->tp_row - 1; 352275970Scy if (t->t_cursor.tp_col >= new->tp_col) 353275970Scy t->t_cursor.tp_col = new->tp_col - 1; 354275970Scy} 355275970Scy 356275970Scyvoid 357275970Scyteken_set_winsize(teken_t *t, const teken_pos_t *p) 358275970Scy{ 359275970Scy 360275970Scy teken_trim_cursor_pos(t, p); 361275970Scy t->t_winsize = *p; 362275970Scy teken_subr_do_reset(t); 363275970Scy} 364275970Scy 365275970Scyvoid 366275970Scyteken_set_winsize_noreset(teken_t *t, const teken_pos_t *p) 367275970Scy{ 368275970Scy 369275970Scy teken_trim_cursor_pos(t, p); 370275970Scy t->t_winsize = *p; 371275970Scy teken_subr_do_resize(t); 372275970Scy} 373275970Scy 374275970Scyvoid 375275970Scyteken_set_8bit(teken_t *t) 376275970Scy{ 377275970Scy 378275970Scy t->t_stateflags |= TS_8BIT; 379275970Scy} 380275970Scy 381275970Scyvoid 382275970Scyteken_set_cons25(teken_t *t) 383275970Scy{ 384275970Scy 385275970Scy t->t_stateflags |= TS_CONS25; 386275970Scy} 387275970Scy 388275970Scy/* 389275970Scy * State machine. 390275970Scy */ 391275970Scy 392275970Scystatic void 393275970Scyteken_state_switch(teken_t *t, teken_state_t *s) 394275970Scy{ 395275970Scy 396275970Scy t->t_nextstate = s; 397275970Scy t->t_curnum = 0; 398275970Scy t->t_stateflags |= TS_FIRSTDIGIT; 399275970Scy} 400275970Scy 401275970Scystatic int 402275970Scyteken_state_numbers(teken_t *t, teken_char_t c) 403275970Scy{ 404275970Scy 405275970Scy teken_assert(t->t_curnum < T_NUMSIZE); 406275970Scy 407275970Scy if (c >= '0' && c <= '9') { 408275970Scy /* 409275970Scy * Don't do math with the default value of 1 when a 410275970Scy * custom number is inserted. 411275970Scy */ 412275970Scy if (t->t_stateflags & TS_FIRSTDIGIT) { 413275970Scy t->t_stateflags &= ~TS_FIRSTDIGIT; 414275970Scy t->t_nums[t->t_curnum] = 0; 415275970Scy } else { 416275970Scy t->t_nums[t->t_curnum] *= 10; 417275970Scy } 418275970Scy 419275970Scy t->t_nums[t->t_curnum] += c - '0'; 420275970Scy return (1); 421275970Scy } else if (c == ';') { 422275970Scy if (t->t_stateflags & TS_FIRSTDIGIT) 423275970Scy t->t_nums[t->t_curnum] = 0; 424275970Scy 425275970Scy /* Only allow a limited set of arguments. */ 426275970Scy if (++t->t_curnum == T_NUMSIZE) { 427275970Scy teken_state_switch(t, teken_state_init); 428275970Scy return (1); 429275970Scy } 430275970Scy 431275970Scy t->t_stateflags |= TS_FIRSTDIGIT; 432275970Scy return (1); 433275970Scy } else { 434275970Scy if (t->t_stateflags & TS_FIRSTDIGIT && t->t_curnum > 0) { 435275970Scy /* Finish off the last empty argument. */ 436275970Scy t->t_nums[t->t_curnum] = 0; 437275970Scy t->t_curnum++; 438275970Scy } else if ((t->t_stateflags & TS_FIRSTDIGIT) == 0) { 439275970Scy /* Also count the last argument. */ 440275970Scy t->t_curnum++; 441275970Scy } 442275970Scy } 443275970Scy 444275970Scy return (0); 445275970Scy} 446275970Scy 447275970Scyteken_color_t 448275970Scyteken_256to8(teken_color_t c) 449275970Scy{ 450275970Scy unsigned int r, g, b; 451275970Scy 452275970Scy if (c < 16) { 453275970Scy /* Traditional color indices. */ 454275970Scy return (c % 8); 455275970Scy } else if (c >= 244) { 456275970Scy /* Upper grayscale colors. */ 457275970Scy return (TC_WHITE); 458275970Scy } else if (c >= 232) { 459275970Scy /* Lower grayscale colors. */ 460275970Scy return (TC_BLACK); 461275970Scy } 462275970Scy 463275970Scy /* Convert to RGB. */ 464275970Scy c -= 16; 465275970Scy b = c % 6; 466275970Scy g = (c / 6) % 6; 467275970Scy r = c / 36; 468275970Scy 469275970Scy if (r < g) { 470275970Scy /* Possibly green. */ 471275970Scy if (g < b) 472275970Scy return (TC_BLUE); 473275970Scy else if (g > b) 474275970Scy return (TC_GREEN); 475275970Scy else 476275970Scy return (TC_CYAN); 477275970Scy } else if (r > g) { 478275970Scy /* Possibly red. */ 479275970Scy if (r < b) 480275970Scy return (TC_BLUE); 481275970Scy else if (r > b) 482275970Scy return (TC_RED); 483275970Scy else 484275970Scy return (TC_MAGENTA); 485275970Scy } else { 486275970Scy /* Possibly brown. */ 487275970Scy if (g < b) 488275970Scy return (TC_BLUE); 489275970Scy else if (g > b) 490275970Scy return (TC_BROWN); 491275970Scy else if (r < 3) 492275970Scy return (TC_BLACK); 493275970Scy else 494275970Scy return (TC_WHITE); 495275970Scy } 496275970Scy} 497275970Scy 498275970Scystatic const char * const special_strings_cons25[] = { 499275970Scy [TKEY_UP] = "\x1B[A", [TKEY_DOWN] = "\x1B[B", 500275970Scy [TKEY_LEFT] = "\x1B[D", [TKEY_RIGHT] = "\x1B[C", 501275970Scy 502275970Scy [TKEY_HOME] = "\x1B[H", [TKEY_END] = "\x1B[F", 503275970Scy [TKEY_INSERT] = "\x1B[L", [TKEY_DELETE] = "\x7F", 504275970Scy [TKEY_PAGE_UP] = "\x1B[I", [TKEY_PAGE_DOWN] = "\x1B[G", 505275970Scy 506275970Scy [TKEY_F1] = "\x1B[M", [TKEY_F2] = "\x1B[N", 507275970Scy [TKEY_F3] = "\x1B[O", [TKEY_F4] = "\x1B[P", 508275970Scy [TKEY_F5] = "\x1B[Q", [TKEY_F6] = "\x1B[R", 509275970Scy [TKEY_F7] = "\x1B[S", [TKEY_F8] = "\x1B[T", 510275970Scy [TKEY_F9] = "\x1B[U", [TKEY_F10] = "\x1B[V", 511275970Scy [TKEY_F11] = "\x1B[W", [TKEY_F12] = "\x1B[X", 512275970Scy}; 513275970Scy 514275970Scystatic const char * const special_strings_ckeys[] = { 515275970Scy [TKEY_UP] = "\x1BOA", [TKEY_DOWN] = "\x1BOB", 516275970Scy [TKEY_LEFT] = "\x1BOD", [TKEY_RIGHT] = "\x1BOC", 517275970Scy 518275970Scy [TKEY_HOME] = "\x1BOH", [TKEY_END] = "\x1BOF", 519275970Scy}; 520275970Scy 521275970Scystatic const char * const special_strings_normal[] = { 522275970Scy [TKEY_UP] = "\x1B[A", [TKEY_DOWN] = "\x1B[B", 523275970Scy [TKEY_LEFT] = "\x1B[D", [TKEY_RIGHT] = "\x1B[C", 524275970Scy 525275970Scy [TKEY_HOME] = "\x1B[H", [TKEY_END] = "\x1B[F", 526275970Scy [TKEY_INSERT] = "\x1B[2~", [TKEY_DELETE] = "\x1B[3~", 527275970Scy [TKEY_PAGE_UP] = "\x1B[5~", [TKEY_PAGE_DOWN] = "\x1B[6~", 528275970Scy 529275970Scy [TKEY_F1] = "\x1BOP", [TKEY_F2] = "\x1BOQ", 530275970Scy [TKEY_F3] = "\x1BOR", [TKEY_F4] = "\x1BOS", 531275970Scy [TKEY_F5] = "\x1B[15~", [TKEY_F6] = "\x1B[17~", 532275970Scy [TKEY_F7] = "\x1B[18~", [TKEY_F8] = "\x1B[19~", 533275970Scy [TKEY_F9] = "\x1B[20~", [TKEY_F10] = "\x1B[21~", 534275970Scy [TKEY_F11] = "\x1B[23~", [TKEY_F12] = "\x1B[24~", 535275970Scy}; 536275970Scy 537275970Scyconst char * 538275970Scyteken_get_sequence(teken_t *t, unsigned int k) 539275970Scy{ 540275970Scy 541275970Scy /* Cons25 mode. */ 542275970Scy if (t->t_stateflags & TS_CONS25 && 543275970Scy k < sizeof special_strings_cons25 / sizeof(char *)) 544275970Scy return (special_strings_cons25[k]); 545275970Scy 546275970Scy /* Cursor keys mode. */ 547275970Scy if (t->t_stateflags & TS_CURSORKEYS && 548275970Scy k < sizeof special_strings_ckeys / sizeof(char *)) 549275970Scy return (special_strings_ckeys[k]); 550275970Scy 551275970Scy /* Default xterm sequences. */ 552275970Scy if (k < sizeof special_strings_normal / sizeof(char *)) 553275970Scy return (special_strings_normal[k]); 554275970Scy 555275970Scy return (NULL); 556275970Scy} 557275970Scy 558275970Scy#include "teken_state.h" 559275970Scy