1345 lines
30 KiB
C
1345 lines
30 KiB
C
/*-
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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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* $FreeBSD$
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*/
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static void teken_subr_cursor_up(teken_t *, unsigned int);
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static void teken_subr_erase_line(const teken_t *, unsigned int);
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static void teken_subr_regular_character(teken_t *, teken_char_t);
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static void teken_subr_reset_to_initial_state(teken_t *);
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static void teken_subr_save_cursor(teken_t *);
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static inline int
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teken_tab_isset(const teken_t *t, unsigned int col)
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{
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unsigned int b, o;
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if (col >= T_NUMCOL)
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return ((col % 8) == 0);
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b = col / (sizeof(unsigned int) * 8);
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o = col % (sizeof(unsigned int) * 8);
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return (t->t_tabstops[b] & (1U << o));
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}
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static inline void
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teken_tab_clear(teken_t *t, unsigned int col)
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{
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unsigned int b, o;
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if (col >= T_NUMCOL)
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return;
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b = col / (sizeof(unsigned int) * 8);
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o = col % (sizeof(unsigned int) * 8);
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t->t_tabstops[b] &= ~(1U << o);
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}
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static inline void
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teken_tab_set(teken_t *t, unsigned int col)
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{
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unsigned int b, o;
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if (col >= T_NUMCOL)
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return;
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b = col / (sizeof(unsigned int) * 8);
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o = col % (sizeof(unsigned int) * 8);
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t->t_tabstops[b] |= 1U << o;
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}
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static void
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teken_tab_default(teken_t *t)
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{
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unsigned int i;
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memset(t->t_tabstops, 0, T_NUMCOL / 8);
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for (i = 8; i < T_NUMCOL; i += 8)
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teken_tab_set(t, i);
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}
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static void
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teken_subr_do_scroll(const teken_t *t, int amount)
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{
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teken_rect_t tr;
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teken_pos_t tp;
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teken_assert(t->t_cursor.tp_row <= t->t_winsize.tp_row);
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teken_assert(t->t_scrollreg.ts_end <= t->t_winsize.tp_row);
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teken_assert(amount != 0);
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/* Copy existing data 1 line up. */
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if (amount > 0) {
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/* Scroll down. */
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/* Copy existing data up. */
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if (t->t_scrollreg.ts_begin + amount < t->t_scrollreg.ts_end) {
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tr.tr_begin.tp_row = t->t_scrollreg.ts_begin + amount;
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tr.tr_begin.tp_col = 0;
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tr.tr_end.tp_row = t->t_scrollreg.ts_end;
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tr.tr_end.tp_col = t->t_winsize.tp_col;
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tp.tp_row = t->t_scrollreg.ts_begin;
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tp.tp_col = 0;
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teken_funcs_copy(t, &tr, &tp);
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tr.tr_begin.tp_row = t->t_scrollreg.ts_end - amount;
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} else {
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tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
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}
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/* Clear the last lines. */
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tr.tr_begin.tp_col = 0;
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tr.tr_end.tp_row = t->t_scrollreg.ts_end;
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tr.tr_end.tp_col = t->t_winsize.tp_col;
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teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
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} else {
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/* Scroll up. */
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amount = -amount;
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/* Copy existing data down. */
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if (t->t_scrollreg.ts_begin + amount < t->t_scrollreg.ts_end) {
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tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
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tr.tr_begin.tp_col = 0;
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tr.tr_end.tp_row = t->t_scrollreg.ts_end - amount;
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tr.tr_end.tp_col = t->t_winsize.tp_col;
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tp.tp_row = t->t_scrollreg.ts_begin + amount;
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tp.tp_col = 0;
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teken_funcs_copy(t, &tr, &tp);
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tr.tr_end.tp_row = t->t_scrollreg.ts_begin + amount;
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} else {
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tr.tr_end.tp_row = t->t_scrollreg.ts_end;
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}
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/* Clear the first lines. */
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tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
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tr.tr_begin.tp_col = 0;
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tr.tr_end.tp_col = t->t_winsize.tp_col;
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teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
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}
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}
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static ssize_t
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teken_subr_do_cpr(const teken_t *t, unsigned int cmd, char response[16])
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{
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switch (cmd) {
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case 5: /* Operating status. */
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strcpy(response, "0n");
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return (2);
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case 6: { /* Cursor position. */
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int len;
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len = snprintf(response, 16, "%u;%uR",
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(t->t_cursor.tp_row - t->t_originreg.ts_begin) + 1,
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t->t_cursor.tp_col + 1);
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if (len >= 16)
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return (-1);
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return (len);
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}
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case 15: /* Printer status. */
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strcpy(response, "13n");
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return (3);
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case 25: /* UDK status. */
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strcpy(response, "20n");
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return (3);
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case 26: /* Keyboard status. */
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strcpy(response, "27;1n");
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return (5);
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default:
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teken_printf("Unknown DSR\n");
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return (-1);
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}
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}
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static void
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teken_subr_alignment_test(teken_t *t)
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{
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teken_rect_t tr;
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t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
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t->t_scrollreg.ts_begin = 0;
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t->t_scrollreg.ts_end = t->t_winsize.tp_row;
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t->t_originreg = t->t_scrollreg;
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t->t_stateflags &= ~(TS_WRAPPED|TS_ORIGIN);
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teken_funcs_cursor(t);
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tr.tr_begin.tp_row = 0;
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tr.tr_begin.tp_col = 0;
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tr.tr_end = t->t_winsize;
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teken_funcs_fill(t, &tr, 'E', &t->t_defattr);
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}
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static void
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teken_subr_backspace(teken_t *t)
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{
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if (t->t_stateflags & TS_CONS25) {
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if (t->t_cursor.tp_col == 0) {
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if (t->t_cursor.tp_row == t->t_originreg.ts_begin)
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return;
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t->t_cursor.tp_row--;
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t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
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} else {
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t->t_cursor.tp_col--;
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}
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} else {
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if (t->t_cursor.tp_col == 0)
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return;
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t->t_cursor.tp_col--;
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t->t_stateflags &= ~TS_WRAPPED;
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}
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_bell(const teken_t *t)
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{
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teken_funcs_bell(t);
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}
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static void
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teken_subr_carriage_return(teken_t *t)
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{
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t->t_cursor.tp_col = 0;
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t->t_stateflags &= ~TS_WRAPPED;
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_cursor_backward(teken_t *t, unsigned int ncols)
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{
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if (ncols > t->t_cursor.tp_col)
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t->t_cursor.tp_col = 0;
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else
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t->t_cursor.tp_col -= ncols;
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t->t_stateflags &= ~TS_WRAPPED;
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_cursor_backward_tabulation(teken_t *t, unsigned int ntabs)
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{
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do {
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/* Stop when we've reached the beginning of the line. */
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if (t->t_cursor.tp_col == 0)
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break;
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t->t_cursor.tp_col--;
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/* Tab marker set. */
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if (teken_tab_isset(t, t->t_cursor.tp_col))
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ntabs--;
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} while (ntabs > 0);
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_cursor_down(teken_t *t, unsigned int nrows)
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{
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if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end)
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t->t_cursor.tp_row = t->t_scrollreg.ts_end - 1;
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else
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t->t_cursor.tp_row += nrows;
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t->t_stateflags &= ~TS_WRAPPED;
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_cursor_forward(teken_t *t, unsigned int ncols)
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{
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if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col)
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t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
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else
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t->t_cursor.tp_col += ncols;
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t->t_stateflags &= ~TS_WRAPPED;
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_cursor_forward_tabulation(teken_t *t, unsigned int ntabs)
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{
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do {
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/* Stop when we've reached the end of the line. */
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if (t->t_cursor.tp_col == t->t_winsize.tp_col - 1)
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break;
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t->t_cursor.tp_col++;
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/* Tab marker set. */
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if (teken_tab_isset(t, t->t_cursor.tp_col))
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ntabs--;
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} while (ntabs > 0);
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_cursor_next_line(teken_t *t, unsigned int ncols)
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{
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t->t_cursor.tp_col = 0;
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teken_subr_cursor_down(t, ncols);
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}
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static void
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teken_subr_cursor_position(teken_t *t, unsigned int row, unsigned int col)
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{
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row = (row - 1) + t->t_originreg.ts_begin;
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t->t_cursor.tp_row = row < t->t_originreg.ts_end ?
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row : t->t_originreg.ts_end - 1;
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col--;
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t->t_cursor.tp_col = col < t->t_winsize.tp_col ?
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col : t->t_winsize.tp_col - 1;
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t->t_stateflags &= ~TS_WRAPPED;
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_cursor_position_report(const teken_t *t, unsigned int cmd)
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{
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char response[18] = "\x1B[";
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ssize_t len;
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len = teken_subr_do_cpr(t, cmd, response + 2);
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if (len < 0)
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return;
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teken_funcs_respond(t, response, len + 2);
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}
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static void
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teken_subr_cursor_previous_line(teken_t *t, unsigned int ncols)
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{
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t->t_cursor.tp_col = 0;
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teken_subr_cursor_up(t, ncols);
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}
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static void
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teken_subr_cursor_up(teken_t *t, unsigned int nrows)
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{
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if (t->t_scrollreg.ts_begin + nrows >= t->t_cursor.tp_row)
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t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
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else
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t->t_cursor.tp_row -= nrows;
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t->t_stateflags &= ~TS_WRAPPED;
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teken_funcs_cursor(t);
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}
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static void
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teken_subr_set_cursor_style(teken_t *t, unsigned int style)
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{
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/* TODO */
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/*
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* CSI Ps SP q
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* Set cursor style (DECSCUSR), VT520.
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* Ps = 0 -> blinking block.
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* Ps = 1 -> blinking block (default).
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* Ps = 2 -> steady block.
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* Ps = 3 -> blinking underline.
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* Ps = 4 -> steady underline.
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* Ps = 5 -> blinking bar (xterm).
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* Ps = 6 -> steady bar (xterm).
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*/
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}
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static void
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teken_subr_delete_character(const teken_t *t, unsigned int ncols)
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{
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teken_rect_t tr;
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tr.tr_begin.tp_row = t->t_cursor.tp_row;
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tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
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tr.tr_end.tp_col = t->t_winsize.tp_col;
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if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
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tr.tr_begin.tp_col = t->t_cursor.tp_col;
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} else {
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/* Copy characters to the left. */
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tr.tr_begin.tp_col = t->t_cursor.tp_col + ncols;
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teken_funcs_copy(t, &tr, &t->t_cursor);
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tr.tr_begin.tp_col = t->t_winsize.tp_col - ncols;
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}
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/* Blank trailing columns. */
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teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
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}
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static void
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teken_subr_delete_line(const teken_t *t, unsigned int nrows)
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{
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teken_rect_t tr;
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/* Ignore if outside scrolling region. */
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if (t->t_cursor.tp_row < t->t_scrollreg.ts_begin ||
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t->t_cursor.tp_row >= t->t_scrollreg.ts_end)
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return;
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tr.tr_begin.tp_col = 0;
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tr.tr_end.tp_row = t->t_scrollreg.ts_end;
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tr.tr_end.tp_col = t->t_winsize.tp_col;
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if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
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tr.tr_begin.tp_row = t->t_cursor.tp_row;
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} else {
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teken_pos_t tp;
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/* Copy rows up. */
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tr.tr_begin.tp_row = t->t_cursor.tp_row + nrows;
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tp.tp_row = t->t_cursor.tp_row;
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tp.tp_col = 0;
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teken_funcs_copy(t, &tr, &tp);
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tr.tr_begin.tp_row = t->t_scrollreg.ts_end - nrows;
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}
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/* Blank trailing rows. */
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teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
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}
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static void
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teken_subr_device_control_string(teken_t *t)
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{
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teken_printf("Unsupported device control string\n");
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t->t_stateflags |= TS_INSTRING;
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}
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static void
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teken_subr_device_status_report(const teken_t *t, unsigned int cmd)
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{
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char response[19] = "\x1B[?";
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ssize_t len;
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len = teken_subr_do_cpr(t, cmd, response + 3);
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if (len < 0)
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return;
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teken_funcs_respond(t, response, len + 3);
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}
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static void
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teken_subr_double_height_double_width_line_top(const teken_t *t)
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{
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(void)t;
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teken_printf("double height double width top\n");
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}
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static void
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teken_subr_double_height_double_width_line_bottom(const teken_t *t)
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{
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(void)t;
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teken_printf("double height double width bottom\n");
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}
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static void
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teken_subr_erase_character(const teken_t *t, unsigned int ncols)
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{
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teken_rect_t tr;
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tr.tr_begin = t->t_cursor;
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tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
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if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col)
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tr.tr_end.tp_col = t->t_winsize.tp_col;
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else
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tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
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teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
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}
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static void
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teken_subr_erase_display(const teken_t *t, unsigned int mode)
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{
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teken_rect_t r;
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|
|
r.tr_begin.tp_col = 0;
|
|
r.tr_end.tp_col = t->t_winsize.tp_col;
|
|
|
|
switch (mode) {
|
|
case 1: /* Erase from the top to the cursor. */
|
|
teken_subr_erase_line(t, 1);
|
|
|
|
/* Erase lines above. */
|
|
if (t->t_cursor.tp_row == 0)
|
|
return;
|
|
r.tr_begin.tp_row = 0;
|
|
r.tr_end.tp_row = t->t_cursor.tp_row;
|
|
break;
|
|
case 2: /* Erase entire display. */
|
|
r.tr_begin.tp_row = 0;
|
|
r.tr_end.tp_row = t->t_winsize.tp_row;
|
|
break;
|
|
default: /* Erase from cursor to the bottom. */
|
|
teken_subr_erase_line(t, 0);
|
|
|
|
/* Erase lines below. */
|
|
if (t->t_cursor.tp_row == t->t_winsize.tp_row - 1)
|
|
return;
|
|
r.tr_begin.tp_row = t->t_cursor.tp_row + 1;
|
|
r.tr_end.tp_row = t->t_winsize.tp_row;
|
|
break;
|
|
}
|
|
|
|
teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
|
|
}
|
|
|
|
static void
|
|
teken_subr_erase_line(const teken_t *t, unsigned int mode)
|
|
{
|
|
teken_rect_t r;
|
|
|
|
r.tr_begin.tp_row = t->t_cursor.tp_row;
|
|
r.tr_end.tp_row = t->t_cursor.tp_row + 1;
|
|
|
|
switch (mode) {
|
|
case 1: /* Erase from the beginning of the line to the cursor. */
|
|
r.tr_begin.tp_col = 0;
|
|
r.tr_end.tp_col = t->t_cursor.tp_col + 1;
|
|
break;
|
|
case 2: /* Erase entire line. */
|
|
r.tr_begin.tp_col = 0;
|
|
r.tr_end.tp_col = t->t_winsize.tp_col;
|
|
break;
|
|
default: /* Erase from cursor to the end of the line. */
|
|
r.tr_begin.tp_col = t->t_cursor.tp_col;
|
|
r.tr_end.tp_col = t->t_winsize.tp_col;
|
|
break;
|
|
}
|
|
|
|
teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
|
|
}
|
|
|
|
static void
|
|
teken_subr_g0_scs_special_graphics(teken_t *t)
|
|
{
|
|
|
|
t->t_scs[0] = teken_scs_special_graphics;
|
|
}
|
|
|
|
static void
|
|
teken_subr_g0_scs_uk_national(teken_t *t)
|
|
{
|
|
|
|
t->t_scs[0] = teken_scs_uk_national;
|
|
}
|
|
|
|
static void
|
|
teken_subr_g0_scs_us_ascii(teken_t *t)
|
|
{
|
|
|
|
t->t_scs[0] = teken_scs_us_ascii;
|
|
}
|
|
|
|
static void
|
|
teken_subr_g1_scs_special_graphics(teken_t *t)
|
|
{
|
|
|
|
t->t_scs[1] = teken_scs_special_graphics;
|
|
}
|
|
|
|
static void
|
|
teken_subr_g1_scs_uk_national(teken_t *t)
|
|
{
|
|
|
|
t->t_scs[1] = teken_scs_uk_national;
|
|
}
|
|
|
|
static void
|
|
teken_subr_g1_scs_us_ascii(teken_t *t)
|
|
{
|
|
|
|
t->t_scs[1] = teken_scs_us_ascii;
|
|
}
|
|
|
|
static void
|
|
teken_subr_horizontal_position_absolute(teken_t *t, unsigned int col)
|
|
{
|
|
|
|
col--;
|
|
t->t_cursor.tp_col = col < t->t_winsize.tp_col ?
|
|
col : t->t_winsize.tp_col - 1;
|
|
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_horizontal_tab(teken_t *t)
|
|
{
|
|
|
|
teken_subr_cursor_forward_tabulation(t, 1);
|
|
}
|
|
|
|
static void
|
|
teken_subr_horizontal_tab_set(teken_t *t)
|
|
{
|
|
|
|
teken_tab_set(t, t->t_cursor.tp_col);
|
|
}
|
|
|
|
static void
|
|
teken_subr_index(teken_t *t)
|
|
{
|
|
|
|
if (t->t_cursor.tp_row < t->t_scrollreg.ts_end - 1) {
|
|
t->t_cursor.tp_row++;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
} else {
|
|
teken_subr_do_scroll(t, 1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_insert_character(const teken_t *t, unsigned int ncols)
|
|
{
|
|
teken_rect_t tr;
|
|
|
|
tr.tr_begin = t->t_cursor;
|
|
tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
|
|
|
|
if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
|
|
tr.tr_end.tp_col = t->t_winsize.tp_col;
|
|
} else {
|
|
teken_pos_t tp;
|
|
|
|
/* Copy characters to the right. */
|
|
tr.tr_end.tp_col = t->t_winsize.tp_col - ncols;
|
|
tp.tp_row = t->t_cursor.tp_row;
|
|
tp.tp_col = t->t_cursor.tp_col + ncols;
|
|
teken_funcs_copy(t, &tr, &tp);
|
|
|
|
tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
|
|
}
|
|
|
|
/* Blank current location. */
|
|
teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
|
|
}
|
|
|
|
static void
|
|
teken_subr_insert_line(const teken_t *t, unsigned int nrows)
|
|
{
|
|
teken_rect_t tr;
|
|
|
|
/* Ignore if outside scrolling region. */
|
|
if (t->t_cursor.tp_row < t->t_scrollreg.ts_begin ||
|
|
t->t_cursor.tp_row >= t->t_scrollreg.ts_end)
|
|
return;
|
|
|
|
tr.tr_begin.tp_row = t->t_cursor.tp_row;
|
|
tr.tr_begin.tp_col = 0;
|
|
tr.tr_end.tp_col = t->t_winsize.tp_col;
|
|
|
|
if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
|
|
tr.tr_end.tp_row = t->t_scrollreg.ts_end;
|
|
} else {
|
|
teken_pos_t tp;
|
|
|
|
/* Copy lines down. */
|
|
tr.tr_end.tp_row = t->t_scrollreg.ts_end - nrows;
|
|
tp.tp_row = t->t_cursor.tp_row + nrows;
|
|
tp.tp_col = 0;
|
|
teken_funcs_copy(t, &tr, &tp);
|
|
|
|
tr.tr_end.tp_row = t->t_cursor.tp_row + nrows;
|
|
}
|
|
|
|
/* Blank current location. */
|
|
teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
|
|
}
|
|
|
|
static void
|
|
teken_subr_keypad_application_mode(const teken_t *t)
|
|
{
|
|
|
|
teken_funcs_param(t, TP_KEYPADAPP, 1);
|
|
}
|
|
|
|
static void
|
|
teken_subr_keypad_numeric_mode(const teken_t *t)
|
|
{
|
|
|
|
teken_funcs_param(t, TP_KEYPADAPP, 0);
|
|
}
|
|
|
|
static void
|
|
teken_subr_newline(teken_t *t)
|
|
{
|
|
|
|
t->t_cursor.tp_row++;
|
|
|
|
if (t->t_cursor.tp_row >= t->t_scrollreg.ts_end) {
|
|
teken_subr_do_scroll(t, 1);
|
|
t->t_cursor.tp_row = t->t_scrollreg.ts_end - 1;
|
|
}
|
|
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_newpage(teken_t *t)
|
|
{
|
|
|
|
if (t->t_stateflags & TS_CONS25) {
|
|
teken_rect_t tr;
|
|
|
|
/* Clear screen. */
|
|
tr.tr_begin.tp_row = t->t_originreg.ts_begin;
|
|
tr.tr_begin.tp_col = 0;
|
|
tr.tr_end.tp_row = t->t_originreg.ts_end;
|
|
tr.tr_end.tp_col = t->t_winsize.tp_col;
|
|
teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
|
|
|
|
/* Cursor at top left. */
|
|
t->t_cursor.tp_row = t->t_originreg.ts_begin;
|
|
t->t_cursor.tp_col = 0;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
} else {
|
|
teken_subr_newline(t);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_next_line(teken_t *t)
|
|
{
|
|
|
|
t->t_cursor.tp_col = 0;
|
|
teken_subr_newline(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_operating_system_command(teken_t *t)
|
|
{
|
|
|
|
teken_printf("Unsupported operating system command\n");
|
|
t->t_stateflags |= TS_INSTRING;
|
|
}
|
|
|
|
static void
|
|
teken_subr_pan_down(const teken_t *t, unsigned int nrows)
|
|
{
|
|
|
|
teken_subr_do_scroll(t, (int)nrows);
|
|
}
|
|
|
|
static void
|
|
teken_subr_pan_up(const teken_t *t, unsigned int nrows)
|
|
{
|
|
|
|
teken_subr_do_scroll(t, -(int)nrows);
|
|
}
|
|
|
|
static void
|
|
teken_subr_primary_device_attributes(const teken_t *t, unsigned int request)
|
|
{
|
|
|
|
if (request == 0) {
|
|
const char response[] = "\x1B[?1;2c";
|
|
|
|
teken_funcs_respond(t, response, sizeof response - 1);
|
|
} else {
|
|
teken_printf("Unknown DA1\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_do_putchar(teken_t *t, const teken_pos_t *tp, teken_char_t c,
|
|
int width)
|
|
{
|
|
|
|
t->t_last = c;
|
|
if (t->t_stateflags & TS_INSERT &&
|
|
tp->tp_col < t->t_winsize.tp_col - width) {
|
|
teken_rect_t ctr;
|
|
teken_pos_t ctp;
|
|
|
|
/* Insert mode. Move existing characters to the right. */
|
|
ctr.tr_begin = *tp;
|
|
ctr.tr_end.tp_row = tp->tp_row + 1;
|
|
ctr.tr_end.tp_col = t->t_winsize.tp_col - width;
|
|
ctp.tp_row = tp->tp_row;
|
|
ctp.tp_col = tp->tp_col + width;
|
|
teken_funcs_copy(t, &ctr, &ctp);
|
|
}
|
|
|
|
teken_funcs_putchar(t, tp, c, &t->t_curattr);
|
|
|
|
if (width == 2 && tp->tp_col + 1 < t->t_winsize.tp_col) {
|
|
teken_pos_t tp2;
|
|
teken_attr_t attr;
|
|
|
|
/* Print second half of CJK fullwidth character. */
|
|
tp2.tp_row = tp->tp_row;
|
|
tp2.tp_col = tp->tp_col + 1;
|
|
attr = t->t_curattr;
|
|
attr.ta_format |= TF_CJK_RIGHT;
|
|
teken_funcs_putchar(t, &tp2, c, &attr);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_regular_character(teken_t *t, teken_char_t c)
|
|
{
|
|
int width;
|
|
|
|
if (t->t_stateflags & TS_8BIT) {
|
|
if (!(t->t_stateflags & TS_CONS25) && (c <= 0x1b || c == 0x7f))
|
|
return;
|
|
c = teken_scs_process(t, c);
|
|
width = 1;
|
|
} else {
|
|
c = teken_scs_process(t, c);
|
|
width = teken_wcwidth(c);
|
|
/* XXX: Don't process zero-width characters yet. */
|
|
if (width <= 0)
|
|
return;
|
|
}
|
|
|
|
if (t->t_stateflags & TS_CONS25) {
|
|
teken_subr_do_putchar(t, &t->t_cursor, c, width);
|
|
t->t_cursor.tp_col += width;
|
|
|
|
if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
|
|
if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
|
|
/* Perform scrolling. */
|
|
teken_subr_do_scroll(t, 1);
|
|
} else {
|
|
/* No scrolling needed. */
|
|
if (t->t_cursor.tp_row <
|
|
t->t_winsize.tp_row - 1)
|
|
t->t_cursor.tp_row++;
|
|
}
|
|
t->t_cursor.tp_col = 0;
|
|
}
|
|
} else if (t->t_stateflags & TS_AUTOWRAP &&
|
|
((t->t_stateflags & TS_WRAPPED &&
|
|
t->t_cursor.tp_col + 1 == t->t_winsize.tp_col) ||
|
|
t->t_cursor.tp_col + width > t->t_winsize.tp_col)) {
|
|
teken_pos_t tp;
|
|
|
|
/*
|
|
* Perform line wrapping, if:
|
|
* - Autowrapping is enabled, and
|
|
* - We're in the wrapped state at the last column, or
|
|
* - The character to be printed does not fit anymore.
|
|
*/
|
|
if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
|
|
/* Perform scrolling. */
|
|
teken_subr_do_scroll(t, 1);
|
|
tp.tp_row = t->t_scrollreg.ts_end - 1;
|
|
} else {
|
|
/* No scrolling needed. */
|
|
tp.tp_row = t->t_cursor.tp_row + 1;
|
|
if (tp.tp_row == t->t_winsize.tp_row) {
|
|
/*
|
|
* Corner case: regular character
|
|
* outside scrolling region, but at the
|
|
* bottom of the screen.
|
|
*/
|
|
teken_subr_do_putchar(t, &t->t_cursor,
|
|
c, width);
|
|
return;
|
|
}
|
|
}
|
|
|
|
tp.tp_col = 0;
|
|
teken_subr_do_putchar(t, &tp, c, width);
|
|
|
|
t->t_cursor.tp_row = tp.tp_row;
|
|
t->t_cursor.tp_col = width;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
} else {
|
|
/* No line wrapping needed. */
|
|
teken_subr_do_putchar(t, &t->t_cursor, c, width);
|
|
t->t_cursor.tp_col += width;
|
|
|
|
if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
|
|
t->t_stateflags |= TS_WRAPPED;
|
|
t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
|
|
} else {
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
}
|
|
}
|
|
|
|
teken_funcs_cursor(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_reset_dec_mode(teken_t *t, unsigned int cmd)
|
|
{
|
|
|
|
switch (cmd) {
|
|
case 1: /* Cursor keys mode. */
|
|
t->t_stateflags &= ~TS_CURSORKEYS;
|
|
break;
|
|
case 2: /* DECANM: ANSI/VT52 mode. */
|
|
teken_printf("DECRST VT52\n");
|
|
break;
|
|
case 3: /* 132 column mode. */
|
|
teken_funcs_param(t, TP_132COLS, 0);
|
|
teken_subr_reset_to_initial_state(t);
|
|
break;
|
|
case 5: /* Inverse video. */
|
|
teken_printf("DECRST inverse video\n");
|
|
break;
|
|
case 6: /* Origin mode. */
|
|
t->t_stateflags &= ~TS_ORIGIN;
|
|
t->t_originreg.ts_begin = 0;
|
|
t->t_originreg.ts_end = t->t_winsize.tp_row;
|
|
t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
break;
|
|
case 7: /* Autowrap mode. */
|
|
t->t_stateflags &= ~TS_AUTOWRAP;
|
|
break;
|
|
case 8: /* Autorepeat mode. */
|
|
teken_funcs_param(t, TP_AUTOREPEAT, 0);
|
|
break;
|
|
case 25: /* Hide cursor. */
|
|
teken_funcs_param(t, TP_SHOWCURSOR, 0);
|
|
break;
|
|
case 40: /* Disallow 132 columns. */
|
|
teken_printf("DECRST allow 132\n");
|
|
break;
|
|
case 45: /* Disable reverse wraparound. */
|
|
teken_printf("DECRST reverse wraparound\n");
|
|
break;
|
|
case 47: /* Switch to alternate buffer. */
|
|
teken_printf("Switch to alternate buffer\n");
|
|
break;
|
|
case 1000: /* Mouse input. */
|
|
teken_funcs_param(t, TP_MOUSE, 0);
|
|
break;
|
|
default:
|
|
teken_printf("Unknown DECRST: %u\n", cmd);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_reset_mode(teken_t *t, unsigned int cmd)
|
|
{
|
|
|
|
switch (cmd) {
|
|
case 4:
|
|
t->t_stateflags &= ~TS_INSERT;
|
|
break;
|
|
default:
|
|
teken_printf("Unknown reset mode: %u\n", cmd);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_do_resize(teken_t *t)
|
|
{
|
|
|
|
t->t_scrollreg.ts_begin = 0;
|
|
t->t_scrollreg.ts_end = t->t_winsize.tp_row;
|
|
t->t_originreg = t->t_scrollreg;
|
|
}
|
|
|
|
static void
|
|
teken_subr_do_reset(teken_t *t)
|
|
{
|
|
|
|
t->t_curattr = t->t_defattr;
|
|
t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
|
|
t->t_scrollreg.ts_begin = 0;
|
|
t->t_scrollreg.ts_end = t->t_winsize.tp_row;
|
|
t->t_originreg = t->t_scrollreg;
|
|
t->t_stateflags &= TS_8BIT|TS_CONS25;
|
|
t->t_stateflags |= TS_AUTOWRAP;
|
|
|
|
t->t_scs[0] = teken_scs_us_ascii;
|
|
t->t_scs[1] = teken_scs_us_ascii;
|
|
t->t_curscs = 0;
|
|
|
|
teken_subr_save_cursor(t);
|
|
teken_tab_default(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_reset_to_initial_state(teken_t *t)
|
|
{
|
|
|
|
teken_subr_do_reset(t);
|
|
teken_subr_erase_display(t, 2);
|
|
teken_funcs_param(t, TP_SHOWCURSOR, 1);
|
|
teken_funcs_cursor(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_restore_cursor(teken_t *t)
|
|
{
|
|
|
|
t->t_cursor = t->t_saved_cursor;
|
|
t->t_curattr = t->t_saved_curattr;
|
|
t->t_scs[t->t_curscs] = t->t_saved_curscs;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
|
|
/* Get out of origin mode when the cursor is moved outside. */
|
|
if (t->t_cursor.tp_row < t->t_originreg.ts_begin ||
|
|
t->t_cursor.tp_row >= t->t_originreg.ts_end) {
|
|
t->t_stateflags &= ~TS_ORIGIN;
|
|
t->t_originreg.ts_begin = 0;
|
|
t->t_originreg.ts_end = t->t_winsize.tp_row;
|
|
}
|
|
|
|
teken_funcs_cursor(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_reverse_index(teken_t *t)
|
|
{
|
|
|
|
if (t->t_cursor.tp_row > t->t_scrollreg.ts_begin) {
|
|
t->t_cursor.tp_row--;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
} else {
|
|
teken_subr_do_scroll(t, -1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_save_cursor(teken_t *t)
|
|
{
|
|
|
|
t->t_saved_cursor = t->t_cursor;
|
|
t->t_saved_curattr = t->t_curattr;
|
|
t->t_saved_curscs = t->t_scs[t->t_curscs];
|
|
}
|
|
|
|
static void
|
|
teken_subr_secondary_device_attributes(const teken_t *t, unsigned int request)
|
|
{
|
|
|
|
if (request == 0) {
|
|
const char response[] = "\x1B[>0;10;0c";
|
|
teken_funcs_respond(t, response, sizeof response - 1);
|
|
} else {
|
|
teken_printf("Unknown DA2\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_set_dec_mode(teken_t *t, unsigned int cmd)
|
|
{
|
|
|
|
switch (cmd) {
|
|
case 1: /* Cursor keys mode. */
|
|
t->t_stateflags |= TS_CURSORKEYS;
|
|
break;
|
|
case 2: /* DECANM: ANSI/VT52 mode. */
|
|
teken_printf("DECSET VT52\n");
|
|
break;
|
|
case 3: /* 132 column mode. */
|
|
teken_funcs_param(t, TP_132COLS, 1);
|
|
teken_subr_reset_to_initial_state(t);
|
|
break;
|
|
case 5: /* Inverse video. */
|
|
teken_printf("DECSET inverse video\n");
|
|
break;
|
|
case 6: /* Origin mode. */
|
|
t->t_stateflags |= TS_ORIGIN;
|
|
t->t_originreg = t->t_scrollreg;
|
|
t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
|
|
t->t_cursor.tp_col = 0;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
break;
|
|
case 7: /* Autowrap mode. */
|
|
t->t_stateflags |= TS_AUTOWRAP;
|
|
break;
|
|
case 8: /* Autorepeat mode. */
|
|
teken_funcs_param(t, TP_AUTOREPEAT, 1);
|
|
break;
|
|
case 25: /* Display cursor. */
|
|
teken_funcs_param(t, TP_SHOWCURSOR, 1);
|
|
break;
|
|
case 40: /* Allow 132 columns. */
|
|
teken_printf("DECSET allow 132\n");
|
|
break;
|
|
case 45: /* Enable reverse wraparound. */
|
|
teken_printf("DECSET reverse wraparound\n");
|
|
break;
|
|
case 47: /* Switch to alternate buffer. */
|
|
teken_printf("Switch away from alternate buffer\n");
|
|
break;
|
|
case 1000: /* Mouse input. */
|
|
teken_funcs_param(t, TP_MOUSE, 1);
|
|
break;
|
|
default:
|
|
teken_printf("Unknown DECSET: %u\n", cmd);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_set_mode(teken_t *t, unsigned int cmd)
|
|
{
|
|
|
|
switch (cmd) {
|
|
case 4:
|
|
teken_printf("Insert mode\n");
|
|
t->t_stateflags |= TS_INSERT;
|
|
break;
|
|
default:
|
|
teken_printf("Unknown set mode: %u\n", cmd);
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_set_graphic_rendition(teken_t *t, unsigned int ncmds,
|
|
const unsigned int cmds[])
|
|
{
|
|
unsigned int i, n;
|
|
|
|
/* No attributes means reset. */
|
|
if (ncmds == 0) {
|
|
t->t_curattr = t->t_defattr;
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < ncmds; i++) {
|
|
n = cmds[i];
|
|
|
|
switch (n) {
|
|
case 0: /* Reset. */
|
|
t->t_curattr = t->t_defattr;
|
|
break;
|
|
case 1: /* Bold. */
|
|
t->t_curattr.ta_format |= TF_BOLD;
|
|
break;
|
|
case 4: /* Underline. */
|
|
t->t_curattr.ta_format |= TF_UNDERLINE;
|
|
break;
|
|
case 5: /* Blink. */
|
|
t->t_curattr.ta_format |= TF_BLINK;
|
|
break;
|
|
case 7: /* Reverse. */
|
|
t->t_curattr.ta_format |= TF_REVERSE;
|
|
break;
|
|
case 22: /* Remove bold. */
|
|
t->t_curattr.ta_format &= ~TF_BOLD;
|
|
break;
|
|
case 24: /* Remove underline. */
|
|
t->t_curattr.ta_format &= ~TF_UNDERLINE;
|
|
break;
|
|
case 25: /* Remove blink. */
|
|
t->t_curattr.ta_format &= ~TF_BLINK;
|
|
break;
|
|
case 27: /* Remove reverse. */
|
|
t->t_curattr.ta_format &= ~TF_REVERSE;
|
|
break;
|
|
case 30: /* Set foreground color: black */
|
|
case 31: /* Set foreground color: red */
|
|
case 32: /* Set foreground color: green */
|
|
case 33: /* Set foreground color: brown */
|
|
case 34: /* Set foreground color: blue */
|
|
case 35: /* Set foreground color: magenta */
|
|
case 36: /* Set foreground color: cyan */
|
|
case 37: /* Set foreground color: white */
|
|
t->t_curattr.ta_fgcolor = n - 30;
|
|
break;
|
|
case 38: /* Set foreground color: 256 color mode */
|
|
if (i + 2 >= ncmds || cmds[i + 1] != 5)
|
|
continue;
|
|
t->t_curattr.ta_fgcolor = cmds[i + 2];
|
|
i += 2;
|
|
break;
|
|
case 39: /* Set default foreground color. */
|
|
t->t_curattr.ta_fgcolor = t->t_defattr.ta_fgcolor;
|
|
break;
|
|
case 40: /* Set background color: black */
|
|
case 41: /* Set background color: red */
|
|
case 42: /* Set background color: green */
|
|
case 43: /* Set background color: brown */
|
|
case 44: /* Set background color: blue */
|
|
case 45: /* Set background color: magenta */
|
|
case 46: /* Set background color: cyan */
|
|
case 47: /* Set background color: white */
|
|
t->t_curattr.ta_bgcolor = n - 40;
|
|
break;
|
|
case 48: /* Set background color: 256 color mode */
|
|
if (i + 2 >= ncmds || cmds[i + 1] != 5)
|
|
continue;
|
|
t->t_curattr.ta_bgcolor = cmds[i + 2];
|
|
i += 2;
|
|
break;
|
|
case 49: /* Set default background color. */
|
|
t->t_curattr.ta_bgcolor = t->t_defattr.ta_bgcolor;
|
|
break;
|
|
case 90: /* Set bright foreground color: black */
|
|
case 91: /* Set bright foreground color: red */
|
|
case 92: /* Set bright foreground color: green */
|
|
case 93: /* Set bright foreground color: brown */
|
|
case 94: /* Set bright foreground color: blue */
|
|
case 95: /* Set bright foreground color: magenta */
|
|
case 96: /* Set bright foreground color: cyan */
|
|
case 97: /* Set bright foreground color: white */
|
|
t->t_curattr.ta_fgcolor = (n - 90) + 8;
|
|
break;
|
|
case 100: /* Set bright background color: black */
|
|
case 101: /* Set bright background color: red */
|
|
case 102: /* Set bright background color: green */
|
|
case 103: /* Set bright background color: brown */
|
|
case 104: /* Set bright background color: blue */
|
|
case 105: /* Set bright background color: magenta */
|
|
case 106: /* Set bright background color: cyan */
|
|
case 107: /* Set bright background color: white */
|
|
t->t_curattr.ta_bgcolor = (n - 100) + 8;
|
|
break;
|
|
default:
|
|
teken_printf("unsupported attribute %u\n", n);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_set_top_and_bottom_margins(teken_t *t, unsigned int top,
|
|
unsigned int bottom)
|
|
{
|
|
|
|
/* Adjust top row number. */
|
|
if (top > 0)
|
|
top--;
|
|
/* Adjust bottom row number. */
|
|
if (bottom == 0 || bottom > t->t_winsize.tp_row)
|
|
bottom = t->t_winsize.tp_row;
|
|
|
|
/* Invalid arguments. */
|
|
if (top >= bottom - 1) {
|
|
top = 0;
|
|
bottom = t->t_winsize.tp_row;
|
|
}
|
|
|
|
/* Apply scrolling region. */
|
|
t->t_scrollreg.ts_begin = top;
|
|
t->t_scrollreg.ts_end = bottom;
|
|
if (t->t_stateflags & TS_ORIGIN)
|
|
t->t_originreg = t->t_scrollreg;
|
|
|
|
/* Home cursor to the top left of the scrolling region. */
|
|
t->t_cursor.tp_row = t->t_originreg.ts_begin;
|
|
t->t_cursor.tp_col = 0;
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_single_height_double_width_line(const teken_t *t)
|
|
{
|
|
|
|
(void)t;
|
|
teken_printf("single height double width???\n");
|
|
}
|
|
|
|
static void
|
|
teken_subr_single_height_single_width_line(const teken_t *t)
|
|
{
|
|
|
|
(void)t;
|
|
teken_printf("single height single width???\n");
|
|
}
|
|
|
|
static void
|
|
teken_subr_string_terminator(const teken_t *t)
|
|
{
|
|
|
|
(void)t;
|
|
/*
|
|
* Strings are already terminated in teken_input_char() when ^[
|
|
* is inserted.
|
|
*/
|
|
}
|
|
|
|
static void
|
|
teken_subr_tab_clear(teken_t *t, unsigned int cmd)
|
|
{
|
|
|
|
switch (cmd) {
|
|
case 0:
|
|
teken_tab_clear(t, t->t_cursor.tp_col);
|
|
break;
|
|
case 3:
|
|
memset(t->t_tabstops, 0, T_NUMCOL / 8);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
teken_subr_vertical_position_absolute(teken_t *t, unsigned int row)
|
|
{
|
|
|
|
row = (row - 1) + t->t_originreg.ts_begin;
|
|
t->t_cursor.tp_row = row < t->t_originreg.ts_end ?
|
|
row : t->t_originreg.ts_end - 1;
|
|
|
|
t->t_stateflags &= ~TS_WRAPPED;
|
|
teken_funcs_cursor(t);
|
|
}
|
|
|
|
static void
|
|
teken_subr_repeat_last_graphic_char(teken_t *t, unsigned int rpts)
|
|
{
|
|
|
|
for (; t->t_last != 0 && rpts > 0; rpts--)
|
|
teken_subr_regular_character(t, t->t_last);
|
|
}
|
|
|