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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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.
*/
/*
* Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the University of California, Berkeley nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS AND 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.
*/
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#include <termios.h>
#include "cmdline_vt100.h"
const char *cmdline_vt100_commands[] = {
vt100_up_arr,
vt100_down_arr,
vt100_right_arr,
vt100_left_arr,
"\177",
"\n",
"\001",
"\005",
"\013",
"\031",
"\003",
"\006",
"\002",
vt100_suppr,
vt100_tab,
"\004",
"\014",
"\r",
"\033\177",
vt100_word_left,
vt100_word_right,
"?",
"\027",
"\020",
"\016",
"\033\144",
};
void
vt100_init(struct cmdline_vt100 *vt)
{
if (!vt)
return;
vt->state = CMDLINE_VT100_INIT;
}
static int
match_command(char *buf, unsigned int size)
{
const char *cmd;
size_t cmdlen;
unsigned int i = 0;
for (i=0 ; i<sizeof(cmdline_vt100_commands)/sizeof(const char *) ; i++) {
cmd = *(cmdline_vt100_commands + i);
cmdlen = strnlen(cmd, CMDLINE_VT100_BUF_SIZE);
if (size == cmdlen &&
!strncmp(buf, cmd, cmdlen)) {
return i;
}
}
return -1;
}
int
vt100_parser(struct cmdline_vt100 *vt, char ch)
{
unsigned int size;
uint8_t c = (uint8_t) ch;
if (!vt)
return -1;
if (vt->bufpos >= CMDLINE_VT100_BUF_SIZE) {
vt->state = CMDLINE_VT100_INIT;
vt->bufpos = 0;
}
vt->buf[vt->bufpos++] = c;
size = vt->bufpos;
switch (vt->state) {
case CMDLINE_VT100_INIT:
if (c == 033) {
vt->state = CMDLINE_VT100_ESCAPE;
}
else {
vt->bufpos = 0;
goto match_command;
}
break;
case CMDLINE_VT100_ESCAPE:
if (c == 0133) {
vt->state = CMDLINE_VT100_ESCAPE_CSI;
}
else if (c >= 060 && c <= 0177) { /* XXX 0177 ? */
vt->bufpos = 0;
vt->state = CMDLINE_VT100_INIT;
goto match_command;
}
break;
case CMDLINE_VT100_ESCAPE_CSI:
if (c >= 0100 && c <= 0176) {
vt->bufpos = 0;
vt->state = CMDLINE_VT100_INIT;
goto match_command;
}
break;
default:
vt->bufpos = 0;
break;
}
return -2;
match_command:
return match_command(vt->buf, size);
}
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