7b5f4e1d30
Add functions that set up, save, and restore terminal parameters. Use existing code as Unix implementation. Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com> Acked-by: Olivier Matz <olivier.matz@6wind.com>
132 lines
2.0 KiB
C
132 lines
2.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation.
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* Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
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* All rights reserved.
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*/
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#include <stdlib.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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#include <stdarg.h>
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#include <ctype.h>
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#include "cmdline_vt100.h"
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const char *cmdline_vt100_commands[] = {
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vt100_up_arr,
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vt100_down_arr,
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vt100_right_arr,
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vt100_left_arr,
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"\177",
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"\n",
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"\001",
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"\005",
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"\013",
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"\031",
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"\003",
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"\006",
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"\002",
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vt100_suppr,
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vt100_tab,
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"\004",
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"\014",
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"\r",
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"\033\177",
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vt100_word_left,
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vt100_word_right,
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"?",
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"\027",
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"\020",
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"\016",
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"\033\144",
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vt100_bs,
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};
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void
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vt100_init(struct cmdline_vt100 *vt)
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{
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if (!vt)
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return;
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vt->state = CMDLINE_VT100_INIT;
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}
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static int
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match_command(char *buf, unsigned int size)
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{
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const char *cmd;
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size_t cmdlen;
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unsigned int i = 0;
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for (i=0 ; i<sizeof(cmdline_vt100_commands)/sizeof(const char *) ; i++) {
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cmd = *(cmdline_vt100_commands + i);
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cmdlen = strnlen(cmd, CMDLINE_VT100_BUF_SIZE);
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if (size == cmdlen &&
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!strncmp(buf, cmd, cmdlen)) {
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return i;
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}
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}
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return -1;
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}
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int
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vt100_parser(struct cmdline_vt100 *vt, char ch)
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{
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unsigned int size;
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uint8_t c = (uint8_t) ch;
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if (!vt)
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return -1;
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if (vt->bufpos >= CMDLINE_VT100_BUF_SIZE) {
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vt->state = CMDLINE_VT100_INIT;
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vt->bufpos = 0;
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}
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vt->buf[vt->bufpos++] = c;
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size = vt->bufpos;
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switch (vt->state) {
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case CMDLINE_VT100_INIT:
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if (c == 033) {
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vt->state = CMDLINE_VT100_ESCAPE;
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}
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else {
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vt->bufpos = 0;
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goto match_command;
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}
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break;
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case CMDLINE_VT100_ESCAPE:
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if (c == 0133) {
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vt->state = CMDLINE_VT100_ESCAPE_CSI;
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}
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else if (c >= 060 && c <= 0177) { /* XXX 0177 ? */
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vt->bufpos = 0;
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vt->state = CMDLINE_VT100_INIT;
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goto match_command;
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}
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break;
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case CMDLINE_VT100_ESCAPE_CSI:
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if (c >= 0100 && c <= 0176) {
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vt->bufpos = 0;
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vt->state = CMDLINE_VT100_INIT;
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goto match_command;
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}
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break;
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default:
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vt->bufpos = 0;
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break;
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}
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return -2;
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match_command:
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return match_command(vt->buf, size);
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}
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