003 File Manager
Current Path:
/usr/src/sys/teken
usr
/
src
/
sys
/
teken
/
📁
..
📁
demo
📄
gensequences
(4.25 KB)
📁
libteken
📄
sequences
(4.52 KB)
📁
stress
📄
teken.c
(17.72 KB)
📄
teken.h
(6.26 KB)
📄
teken_scs.h
(2.7 KB)
📄
teken_subr.h
(30.61 KB)
📄
teken_subr_compat.h
(4.2 KB)
📄
teken_wcwidth.h
(5.11 KB)
Editing: teken.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include <sys/cdefs.h> #if defined(__FreeBSD__) && defined(_KERNEL) #include <sys/param.h> #include <sys/limits.h> #include <sys/lock.h> #include <sys/systm.h> #define teken_assert(x) MPASS(x) #elif defined(__FreeBSD__) && defined(_STANDALONE) #include <stand.h> #include <sys/limits.h> #include <assert.h> #define teken_assert(x) assert(x) #else /* !(__FreeBSD__ && _STANDALONE) */ #include <sys/types.h> #include <assert.h> #include <limits.h> #include <stdint.h> #include <stdio.h> #include <string.h> #define teken_assert(x) assert(x) #endif /* __FreeBSD__ && _STANDALONE */ /* debug messages */ #define teken_printf(x,...) /* Private flags for t_stateflags. */ #define TS_FIRSTDIGIT 0x0001 /* First numeric digit in escape sequence. */ #define TS_INSERT 0x0002 /* Insert mode. */ #define TS_AUTOWRAP 0x0004 /* Autowrap. */ #define TS_ORIGIN 0x0008 /* Origin mode. */ #define TS_WRAPPED 0x0010 /* Next character should be printed on col 0. */ #define TS_8BIT 0x0020 /* UTF-8 disabled. */ #define TS_CONS25 0x0040 /* cons25 emulation. */ #define TS_INSTRING 0x0080 /* Inside string. */ #define TS_CURSORKEYS 0x0100 /* Cursor keys mode. */ #define TS_CONS25KEYS 0x0400 /* Fuller cons25 emul (fix function keys). */ /* Character that blanks a cell. */ #define BLANK ' ' #include "teken.h" #include "teken_wcwidth.h" #include "teken_scs.h" static teken_state_t teken_state_init; /* * Wrappers for hooks. */ static inline void teken_funcs_bell(const teken_t *t) { teken_assert(t->t_funcs->tf_bell != NULL); t->t_funcs->tf_bell(t->t_softc); } static inline void teken_funcs_cursor(const teken_t *t) { teken_assert(t->t_cursor.tp_row < t->t_winsize.tp_row); teken_assert(t->t_cursor.tp_col < t->t_winsize.tp_col); teken_assert(t->t_funcs->tf_cursor != NULL); t->t_funcs->tf_cursor(t->t_softc, &t->t_cursor); } static inline void teken_funcs_putchar(const teken_t *t, const teken_pos_t *p, teken_char_t c, const teken_attr_t *a) { teken_assert(p->tp_row < t->t_winsize.tp_row); teken_assert(p->tp_col < t->t_winsize.tp_col); teken_assert(t->t_funcs->tf_putchar != NULL); t->t_funcs->tf_putchar(t->t_softc, p, c, a); } static inline void teken_funcs_fill(const teken_t *t, const teken_rect_t *r, const teken_char_t c, const teken_attr_t *a) { teken_assert(r->tr_end.tp_row > r->tr_begin.tp_row); teken_assert(r->tr_end.tp_row <= t->t_winsize.tp_row); teken_assert(r->tr_end.tp_col > r->tr_begin.tp_col); teken_assert(r->tr_end.tp_col <= t->t_winsize.tp_col); teken_assert(t->t_funcs->tf_fill != NULL); t->t_funcs->tf_fill(t->t_softc, r, c, a); } static inline void teken_funcs_copy(const teken_t *t, const teken_rect_t *r, const teken_pos_t *p) { teken_assert(r->tr_end.tp_row > r->tr_begin.tp_row); teken_assert(r->tr_end.tp_row <= t->t_winsize.tp_row); teken_assert(r->tr_end.tp_col > r->tr_begin.tp_col); teken_assert(r->tr_end.tp_col <= t->t_winsize.tp_col); teken_assert(p->tp_row + (r->tr_end.tp_row - r->tr_begin.tp_row) <= t->t_winsize.tp_row); teken_assert(p->tp_col + (r->tr_end.tp_col - r->tr_begin.tp_col) <= t->t_winsize.tp_col); teken_assert(t->t_funcs->tf_copy != NULL); t->t_funcs->tf_copy(t->t_softc, r, p); } static inline void teken_funcs_pre_input(const teken_t *t) { if (t->t_funcs->tf_pre_input != NULL) t->t_funcs->tf_pre_input(t->t_softc); } static inline void teken_funcs_post_input(const teken_t *t) { if (t->t_funcs->tf_post_input != NULL) t->t_funcs->tf_post_input(t->t_softc); } static inline void teken_funcs_param(const teken_t *t, int cmd, unsigned int value) { teken_assert(t->t_funcs->tf_param != NULL); t->t_funcs->tf_param(t->t_softc, cmd, value); } static inline void teken_funcs_respond(const teken_t *t, const void *buf, size_t len) { teken_assert(t->t_funcs->tf_respond != NULL); t->t_funcs->tf_respond(t->t_softc, buf, len); } #include "teken_subr.h" #include "teken_subr_compat.h" /* * Programming interface. */ void teken_init(teken_t *t, const teken_funcs_t *tf, void *softc) { teken_pos_t tp = { .tp_row = 24, .tp_col = 80 }; t->t_funcs = tf; t->t_softc = softc; t->t_nextstate = teken_state_init; t->t_stateflags = 0; t->t_utf8_left = 0; t->t_defattr.ta_format = 0; t->t_defattr.ta_fgcolor = TC_WHITE; t->t_defattr.ta_bgcolor = TC_BLACK; teken_subr_do_reset(t); teken_set_winsize(t, &tp); } static void teken_input_char(teken_t *t, teken_char_t c) { /* * There is no support for DCS and OSC. Just discard strings * until we receive characters that may indicate string * termination. */ if (t->t_stateflags & TS_INSTRING) { switch (c) { case '\x1B': t->t_stateflags &= ~TS_INSTRING; break; case '\a': t->t_stateflags &= ~TS_INSTRING; return; default: return; } } switch (c) { case '\0': break; case '\a': teken_subr_bell(t); break; case '\b': teken_subr_backspace(t); break; case '\n': case '\x0B': teken_subr_newline(t); break; case '\x0C': teken_subr_newpage(t); break; case '\x0E': if (t->t_stateflags & TS_CONS25) t->t_nextstate(t, c); else t->t_curscs = 1; break; case '\x0F': if (t->t_stateflags & TS_CONS25) t->t_nextstate(t, c); else t->t_curscs = 0; break; case '\r': teken_subr_carriage_return(t); break; case '\t': teken_subr_horizontal_tab(t); break; default: t->t_nextstate(t, c); break; } /* Post-processing assertions. */ teken_assert(t->t_cursor.tp_row >= t->t_originreg.ts_begin); teken_assert(t->t_cursor.tp_row < t->t_originreg.ts_end); teken_assert(t->t_cursor.tp_row < t->t_winsize.tp_row); teken_assert(t->t_cursor.tp_col < t->t_winsize.tp_col); teken_assert(t->t_saved_cursor.tp_row < t->t_winsize.tp_row); teken_assert(t->t_saved_cursor.tp_col < t->t_winsize.tp_col); teken_assert(t->t_scrollreg.ts_end <= t->t_winsize.tp_row); teken_assert(t->t_scrollreg.ts_begin < t->t_scrollreg.ts_end); /* Origin region has to be window size or the same as scrollreg. */ teken_assert((t->t_originreg.ts_begin == t->t_scrollreg.ts_begin && t->t_originreg.ts_end == t->t_scrollreg.ts_end) || (t->t_originreg.ts_begin == 0 && t->t_originreg.ts_end == t->t_winsize.tp_row)); } static void teken_input_byte(teken_t *t, unsigned char c) { /* * UTF-8 handling. */ if ((c & 0x80) == 0x00 || t->t_stateflags & TS_8BIT) { /* One-byte sequence. */ t->t_utf8_left = 0; teken_input_char(t, c); } else if ((c & 0xe0) == 0xc0) { /* Two-byte sequence. */ t->t_utf8_left = 1; t->t_utf8_partial = c & 0x1f; } else if ((c & 0xf0) == 0xe0) { /* Three-byte sequence. */ t->t_utf8_left = 2; t->t_utf8_partial = c & 0x0f; } else if ((c & 0xf8) == 0xf0) { /* Four-byte sequence. */ t->t_utf8_left = 3; t->t_utf8_partial = c & 0x07; } else if ((c & 0xc0) == 0x80) { if (t->t_utf8_left == 0) return; t->t_utf8_left--; t->t_utf8_partial = (t->t_utf8_partial << 6) | (c & 0x3f); if (t->t_utf8_left == 0) { teken_printf("Got UTF-8 char %x\n", t->t_utf8_partial); teken_input_char(t, t->t_utf8_partial); } } } void teken_input(teken_t *t, const void *buf, size_t len) { const char *c = buf; teken_funcs_pre_input(t); while (len-- > 0) teken_input_byte(t, *c++); teken_funcs_post_input(t); } const teken_pos_t * teken_get_cursor(const teken_t *t) { return (&t->t_cursor); } void teken_set_cursor(teken_t *t, const teken_pos_t *p) { /* XXX: bounds checking with originreg! */ teken_assert(p->tp_row < t->t_winsize.tp_row); teken_assert(p->tp_col < t->t_winsize.tp_col); t->t_cursor = *p; } const teken_attr_t * teken_get_curattr(const teken_t *t) { return (&t->t_curattr); } void teken_set_curattr(teken_t *t, const teken_attr_t *a) { t->t_curattr = *a; } const teken_attr_t * teken_get_defattr(const teken_t *t) { return (&t->t_defattr); } void teken_set_defattr(teken_t *t, const teken_attr_t *a) { t->t_curattr = t->t_saved_curattr = t->t_defattr = *a; } const teken_pos_t * teken_get_winsize(const teken_t *t) { return (&t->t_winsize); } static void teken_trim_cursor_pos(teken_t *t, const teken_pos_t *new) { const teken_pos_t *cur; cur = &t->t_winsize; if (cur->tp_row < new->tp_row || cur->tp_col < new->tp_col) return; if (t->t_cursor.tp_row >= new->tp_row) t->t_cursor.tp_row = new->tp_row - 1; if (t->t_cursor.tp_col >= new->tp_col) t->t_cursor.tp_col = new->tp_col - 1; } void teken_set_winsize(teken_t *t, const teken_pos_t *p) { teken_trim_cursor_pos(t, p); t->t_winsize = *p; teken_subr_do_reset(t); } void teken_set_winsize_noreset(teken_t *t, const teken_pos_t *p) { teken_trim_cursor_pos(t, p); t->t_winsize = *p; teken_subr_do_resize(t); } void teken_set_8bit(teken_t *t) { t->t_stateflags |= TS_8BIT; } void teken_set_cons25(teken_t *t) { t->t_stateflags |= TS_CONS25; } void teken_set_cons25keys(teken_t *t) { t->t_stateflags |= TS_CONS25KEYS; } /* * State machine. */ static void teken_state_switch(teken_t *t, teken_state_t *s) { t->t_nextstate = s; t->t_curnum = 0; t->t_stateflags |= TS_FIRSTDIGIT; } static int teken_state_numbers(teken_t *t, teken_char_t c) { teken_assert(t->t_curnum < T_NUMSIZE); if (c >= '0' && c <= '9') { if (t->t_stateflags & TS_FIRSTDIGIT) { /* First digit. */ t->t_stateflags &= ~TS_FIRSTDIGIT; t->t_nums[t->t_curnum] = c - '0'; } else if (t->t_nums[t->t_curnum] < UINT_MAX / 100) { /* * There is no need to continue parsing input * once the value exceeds the size of the * terminal. It would only allow for integer * overflows when performing arithmetic on the * cursor position. * * Ignore any further digits if the value is * already UINT_MAX / 100. */ t->t_nums[t->t_curnum] = t->t_nums[t->t_curnum] * 10 + c - '0'; } return (1); } else if (c == ';') { if (t->t_stateflags & TS_FIRSTDIGIT) t->t_nums[t->t_curnum] = 0; /* Only allow a limited set of arguments. */ if (++t->t_curnum == T_NUMSIZE) { teken_state_switch(t, teken_state_init); return (1); } t->t_stateflags |= TS_FIRSTDIGIT; return (1); } else { if (t->t_stateflags & TS_FIRSTDIGIT && t->t_curnum > 0) { /* Finish off the last empty argument. */ t->t_nums[t->t_curnum] = 0; t->t_curnum++; } else if ((t->t_stateflags & TS_FIRSTDIGIT) == 0) { /* Also count the last argument. */ t->t_curnum++; } } return (0); } #define k TC_BLACK #define b TC_BLUE #define y TC_BROWN #define c TC_CYAN #define g TC_GREEN #define m TC_MAGENTA #define r TC_RED #define w TC_WHITE #define K (TC_BLACK | TC_LIGHT) #define B (TC_BLUE | TC_LIGHT) #define Y (TC_BROWN | TC_LIGHT) #define C (TC_CYAN | TC_LIGHT) #define G (TC_GREEN | TC_LIGHT) #define M (TC_MAGENTA | TC_LIGHT) #define R (TC_RED | TC_LIGHT) #define W (TC_WHITE | TC_LIGHT) /** * The xterm-256 color map has steps of 0x28 (in the range 0-0xff), except * for the first step which is 0x5f. Scale to the range 0-6 by dividing * by 0x28 and rounding down. The range of 0-5 cannot represent the * larger first step. * * This table is generated by the follow rules: * - if all components are equal, the result is black for (0, 0, 0) and * (2, 2, 2), else white; otherwise: * - subtract the smallest component from all components * - if this gives only one nonzero component, then that is the color * - else if one component is 2 or more larger than the other nonzero one, * then that component gives the color * - else there are 2 nonzero components. The color is that of a small * equal mixture of these components (cyan, yellow or magenta). E.g., * (0, 5, 6) (Turquoise2) is a much purer cyan than (0, 2, 3) * (DeepSkyBlue4), but we map both to cyan since we can't represent * delicate shades of either blue or cyan and blue would be worse. * Here it is important that components of 1 never occur. Blue would * be twice as large as green in (0, 1, 2). */ static const teken_color_t teken_256to8tab[] = { /* xterm normal colors: */ k, r, g, y, b, m, c, w, /* xterm bright colors: */ k, r, g, y, b, m, c, w, /* Red0 submap. */ k, b, b, b, b, b, g, c, c, b, b, b, g, c, c, c, b, b, g, g, c, c, c, b, g, g, g, c, c, c, g, g, g, g, c, c, /* Red2 submap. */ r, m, m, b, b, b, y, k, b, b, b, b, y, g, c, c, b, b, g, g, c, c, c, b, g, g, g, c, c, c, g, g, g, g, c, c, /* Red3 submap. */ r, m, m, m, b, b, y, r, m, m, b, b, y, y, w, b, b, b, y, y, g, c, c, b, g, g, g, c, c, c, g, g, g, g, c, c, /* Red4 submap. */ r, r, m, m, m, b, r, r, m, m, m, b, y, y, r, m, m, b, y, y, y, w, b, b, y, y, y, g, c, c, g, g, g, g, c, c, /* Red5 submap. */ r, r, r, m, m, m, r, r, r, m, m, m, r, r, r, m, m, m, y, y, y, r, m, m, y, y, y, y, w, b, y, y, y, y, g, c, /* Red6 submap. */ r, r, r, r, m, m, r, r, r, r, m, m, r, r, r, r, m, m, r, r, r, r, m, m, y, y, y, y, r, m, y, y, y, y, y, w, /* Grey submap. */ k, k, k, k, k, k, k, k, k, k, k, k, w, w, w, w, w, w, w, w, w, w, w, w, }; /* * This table is generated from the previous one by setting TC_LIGHT for * entries whose luminosity in the xterm256 color map is 60% or larger. * Thus the previous table is currently not really needed. It will be * used for different fine tuning of the tables. */ static const teken_color_t teken_256to16tab[] = { /* xterm normal colors: */ k, r, g, y, b, m, c, w, /* xterm bright colors: */ K, R, G, Y, B, M, C, W, /* Red0 submap. */ k, b, b, b, b, b, g, c, c, b, b, b, g, c, c, c, b, b, g, g, c, c, c, b, g, g, g, c, c, c, g, g, g, g, c, c, /* Red2 submap. */ r, m, m, b, b, b, y, K, b, b, B, B, y, g, c, c, B, B, g, g, c, c, C, B, g, G, G, C, C, C, g, G, G, G, C, C, /* Red3 submap. */ r, m, m, m, b, b, y, r, m, m, B, B, y, y, w, B, B, B, y, y, G, C, C, B, g, G, G, C, C, C, g, G, G, G, C, C, /* Red4 submap. */ r, r, m, m, m, b, r, r, m, m, M, B, y, y, R, M, M, B, y, y, Y, W, B, B, y, Y, Y, G, C, C, g, G, G, G, C, C, /* Red5 submap. */ r, r, r, m, m, m, r, R, R, M, M, M, r, R, R, M, M, M, y, Y, Y, R, M, M, y, Y, Y, Y, W, B, y, Y, Y, Y, G, C, /* Red6 submap. */ r, r, r, r, m, m, r, R, R, R, M, M, r, R, R, R, M, M, r, R, R, R, M, M, y, Y, Y, Y, R, M, y, Y, Y, Y, Y, W, /* Grey submap. */ k, k, k, k, k, k, K, K, K, K, K, K, w, w, w, w, w, w, W, W, W, W, W, W, }; #undef k #undef b #undef y #undef c #undef g #undef m #undef r #undef w #undef K #undef B #undef Y #undef C #undef G #undef M #undef R #undef W teken_color_t teken_256to8(teken_color_t c) { return (teken_256to8tab[c % 256]); } teken_color_t teken_256to16(teken_color_t c) { return (teken_256to16tab[c % 256]); } static const char * const special_strings_cons25[] = { [TKEY_UP] = "\x1B[A", [TKEY_DOWN] = "\x1B[B", [TKEY_LEFT] = "\x1B[D", [TKEY_RIGHT] = "\x1B[C", [TKEY_HOME] = "\x1B[H", [TKEY_END] = "\x1B[F", [TKEY_INSERT] = "\x1B[L", [TKEY_DELETE] = "\x7F", [TKEY_PAGE_UP] = "\x1B[I", [TKEY_PAGE_DOWN] = "\x1B[G", [TKEY_F1] = "\x1B[M", [TKEY_F2] = "\x1B[N", [TKEY_F3] = "\x1B[O", [TKEY_F4] = "\x1B[P", [TKEY_F5] = "\x1B[Q", [TKEY_F6] = "\x1B[R", [TKEY_F7] = "\x1B[S", [TKEY_F8] = "\x1B[T", [TKEY_F9] = "\x1B[U", [TKEY_F10] = "\x1B[V", [TKEY_F11] = "\x1B[W", [TKEY_F12] = "\x1B[X", }; static const char * const special_strings_ckeys[] = { [TKEY_UP] = "\x1BOA", [TKEY_DOWN] = "\x1BOB", [TKEY_LEFT] = "\x1BOD", [TKEY_RIGHT] = "\x1BOC", [TKEY_HOME] = "\x1BOH", [TKEY_END] = "\x1BOF", }; static const char * const special_strings_normal[] = { [TKEY_UP] = "\x1B[A", [TKEY_DOWN] = "\x1B[B", [TKEY_LEFT] = "\x1B[D", [TKEY_RIGHT] = "\x1B[C", [TKEY_HOME] = "\x1B[H", [TKEY_END] = "\x1B[F", [TKEY_INSERT] = "\x1B[2~", [TKEY_DELETE] = "\x1B[3~", [TKEY_PAGE_UP] = "\x1B[5~", [TKEY_PAGE_DOWN] = "\x1B[6~", [TKEY_F1] = "\x1BOP", [TKEY_F2] = "\x1BOQ", [TKEY_F3] = "\x1BOR", [TKEY_F4] = "\x1BOS", [TKEY_F5] = "\x1B[15~", [TKEY_F6] = "\x1B[17~", [TKEY_F7] = "\x1B[18~", [TKEY_F8] = "\x1B[19~", [TKEY_F9] = "\x1B[20~", [TKEY_F10] = "\x1B[21~", [TKEY_F11] = "\x1B[23~", [TKEY_F12] = "\x1B[24~", }; const char * teken_get_sequence(const teken_t *t, unsigned int k) { /* Cons25 mode. */ if ((t->t_stateflags & (TS_CONS25 | TS_CONS25KEYS)) == (TS_CONS25 | TS_CONS25KEYS)) return (NULL); /* Don't override good kbd(4) strings. */ if (t->t_stateflags & TS_CONS25 && k < sizeof special_strings_cons25 / sizeof(char *)) return (special_strings_cons25[k]); /* Cursor keys mode. */ if (t->t_stateflags & TS_CURSORKEYS && k < sizeof special_strings_ckeys / sizeof(char *)) return (special_strings_ckeys[k]); /* Default xterm sequences. */ if (k < sizeof special_strings_normal / sizeof(char *)) return (special_strings_normal[k]); return (NULL); } #include "teken_state.h"
Upload File
Create Folder