1251 lines
32 KiB
C
1251 lines
32 KiB
C
/*
|
|
* mooterm/mootermparser.c
|
|
*
|
|
* Copyright (C) 2004-2006 by Yevgen Muntyan <muntyan@math.tamu.edu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* See COPYING file that comes with this distribution.
|
|
*/
|
|
|
|
#define MOOTERM_COMPILATION
|
|
#include "mooterm/mootermparser-yacc.h"
|
|
#include "mooterm/mootermparser.h"
|
|
#include "mooterm/mooterm-vt.h"
|
|
#include "mooterm/mooterm-vtctls.h"
|
|
#include <string.h>
|
|
|
|
|
|
#define INVALID_CHAR "?"
|
|
#define INVALID_CHAR_LEN 1
|
|
|
|
|
|
#if 0
|
|
#define DEBUG_ONE_CHAR(c__) \
|
|
G_STMT_START { \
|
|
char *s = _moo_term_nice_char (c__); \
|
|
g_message ("got one-char '%s'", s); \
|
|
g_free (s); \
|
|
} G_STMT_END
|
|
#define DEBUG_CONTROL \
|
|
G_STMT_START { \
|
|
char *s = _moo_term_current_ctl (parser); \
|
|
g_message ("got sequence '%s'", s); \
|
|
g_free (s); \
|
|
} G_STMT_END
|
|
#else
|
|
#define DEBUG_ONE_CHAR(c__)
|
|
#define DEBUG_CONTROL
|
|
#endif
|
|
|
|
|
|
static void parser_finish (MooTermParser *parser);
|
|
static void flush_chars (MooTermParser *parser);
|
|
|
|
static void exec_escape_sequence(MooTermParser *parser);
|
|
static void exec_cmd (MooTermParser *parser,
|
|
guchar cmd);
|
|
static void exec_apc (MooTermParser *parser,
|
|
guchar final);
|
|
static void exec_pm (MooTermParser *parser,
|
|
guchar final);
|
|
static void exec_osc (MooTermParser *parser,
|
|
guchar final);
|
|
static void exec_csi (MooTermParser *parser);
|
|
static void exec_dcs (MooTermParser *parser);
|
|
|
|
|
|
#define iter_free g_free
|
|
|
|
static InputIter *iter_new (MooTermParser *parser)
|
|
{
|
|
InputIter *iter = g_new (InputIter, 1);
|
|
|
|
iter->parser = parser;
|
|
iter->old = FALSE;
|
|
iter->offset = parser->input.data_len;
|
|
|
|
return iter;
|
|
}
|
|
|
|
|
|
static gboolean iter_eof (InputIter *iter)
|
|
{
|
|
return !iter->old && iter->offset >=
|
|
iter->parser->input.data_len;
|
|
}
|
|
|
|
|
|
static void iter_forward (InputIter *iter)
|
|
{
|
|
g_assert (!iter_eof (iter));
|
|
|
|
++iter->offset;
|
|
|
|
if (iter->old)
|
|
{
|
|
if (iter->offset ==
|
|
iter->parser->input.old_data->len)
|
|
{
|
|
iter->offset = 0;
|
|
iter->old = FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void iter_backward (InputIter *iter)
|
|
{
|
|
g_assert (iter->offset ||
|
|
(!iter->old && iter->parser->input.old_data->len));
|
|
|
|
if (iter->offset)
|
|
{
|
|
--iter->offset;
|
|
}
|
|
else
|
|
{
|
|
iter->offset =
|
|
iter->parser->input.old_data->len - 1;
|
|
iter->old = TRUE;
|
|
}
|
|
}
|
|
|
|
|
|
static void iter_set_eof (InputIter *iter)
|
|
{
|
|
iter->old = FALSE;
|
|
iter->offset = iter->parser->input.data_len;
|
|
}
|
|
|
|
|
|
static guchar iter_get_char (InputIter *iter)
|
|
{
|
|
g_assert (!iter_eof (iter));
|
|
|
|
if (iter->old)
|
|
return iter->parser->input.old_data->str[iter->offset];
|
|
else
|
|
return iter->parser->input.data[iter->offset];
|
|
}
|
|
|
|
|
|
static void save_cmd (MooTermParser *parser)
|
|
{
|
|
GString *old = parser->input.old_data;
|
|
guint offset = parser->cmd_start->offset;
|
|
|
|
g_assert (!iter_eof (parser->cmd_start));
|
|
|
|
if (parser->cmd_start->old)
|
|
{
|
|
g_assert (offset < old->len);
|
|
memmove (old->str, old->str + offset,
|
|
old->len - offset);
|
|
g_string_truncate (old, old->len - offset);
|
|
|
|
g_string_append_len (old,
|
|
(const char *) parser->input.data,
|
|
parser->input.data_len);
|
|
}
|
|
else
|
|
{
|
|
const char *data = (const char*) parser->input.data;
|
|
guint data_len = parser->input.data_len;
|
|
|
|
g_assert (offset < parser->input.data_len);
|
|
|
|
g_string_truncate (old, 0);
|
|
g_string_append_len (old,
|
|
data + offset,
|
|
data_len - offset);
|
|
}
|
|
|
|
parser->save = TRUE;
|
|
}
|
|
|
|
|
|
static void save_character (MooTermParser *parser)
|
|
{
|
|
g_string_truncate (parser->input.old_data, 0);
|
|
g_string_append_len (parser->input.old_data,
|
|
parser->character->str,
|
|
parser->character->len);
|
|
parser->save = TRUE;
|
|
}
|
|
|
|
|
|
static void one_char_cmd (MooTermParser *parser, guchar c)
|
|
{
|
|
flush_chars (parser);
|
|
DEBUG_ONE_CHAR(c);
|
|
exec_cmd (parser, c);
|
|
}
|
|
|
|
|
|
#define GOTO_INITIAL \
|
|
iter_set_eof (parser->cmd_start); \
|
|
goto STATE_INITIAL_;
|
|
|
|
#define GOTO_ESCAPE \
|
|
flush_chars (parser); \
|
|
\
|
|
*parser->cmd_start = *parser->current; \
|
|
iter_backward (parser->cmd_start); \
|
|
\
|
|
g_string_truncate (parser->intermediate, 0); \
|
|
g_string_truncate (parser->parameters, 0); \
|
|
g_string_truncate (parser->data, 0); \
|
|
parser->final = 0; \
|
|
\
|
|
goto STATE_ESCAPE_;
|
|
|
|
|
|
#define CHECK_CANCEL(c, state) \
|
|
switch (c) \
|
|
{ \
|
|
/* ESC - start new sequence */ \
|
|
case 0x1B: \
|
|
GOTO_ESCAPE \
|
|
\
|
|
/* CAN - cancel sequence in progress */ \
|
|
case 0x18: \
|
|
GOTO_INITIAL \
|
|
\
|
|
/* SUB - cancel sequence in progress and \
|
|
print error */ \
|
|
case 0x1A: \
|
|
VT_PRINT_CHAR (ERROR_CHAR); \
|
|
GOTO_INITIAL \
|
|
\
|
|
case 0x05: \
|
|
case 0x07: \
|
|
case 0x08: \
|
|
case 0x09: \
|
|
case 0x0A: \
|
|
case 0x0B: \
|
|
case 0x0C: \
|
|
case 0x0D: \
|
|
case 0x0E: \
|
|
case 0x0F: \
|
|
case 0x11: \
|
|
case 0x13: \
|
|
one_char_cmd (parser, c); \
|
|
goto state; \
|
|
}
|
|
|
|
|
|
#define DCS_CHECK_CANCEL(c) \
|
|
switch (c) \
|
|
{ \
|
|
/* ESC - it might be beginning of ST sequence */ \
|
|
case 0x1B: \
|
|
goto STATE_DCS_ESCAPE_; \
|
|
\
|
|
/* CAN - cancel sequence in progress */ \
|
|
case 0x18: \
|
|
GOTO_INITIAL \
|
|
\
|
|
/* SUB - cancel sequence in progress and \
|
|
print error */ \
|
|
case 0x1A: \
|
|
VT_PRINT_CHAR (ERROR_CHAR); \
|
|
GOTO_INITIAL \
|
|
\
|
|
case 0x05: \
|
|
case 0x07: \
|
|
case 0x08: \
|
|
case 0x09: \
|
|
case 0x0A: \
|
|
case 0x0B: \
|
|
case 0x0C: \
|
|
case 0x0D: \
|
|
case 0x0E: \
|
|
case 0x0F: \
|
|
case 0x11: \
|
|
case 0x13: \
|
|
one_char_cmd (parser, c); \
|
|
goto STATE_DCS_DATA_; \
|
|
}
|
|
|
|
|
|
#define APPEND_CHAR(ar, c) g_string_append_c (parser->ar, c)
|
|
|
|
|
|
/* returns 0 on end of input */
|
|
static guchar get_char (MooTermParser *parser)
|
|
{
|
|
guchar c = 0;
|
|
|
|
while (!c && !iter_eof (parser->current))
|
|
{
|
|
if (!(c = iter_get_char (parser->current)))
|
|
iter_forward (parser->current);
|
|
}
|
|
|
|
if (!c)
|
|
{
|
|
if (!iter_eof (parser->cmd_start))
|
|
save_cmd (parser);
|
|
else if (parser->character->len)
|
|
save_character (parser);
|
|
|
|
parser_finish (parser);
|
|
|
|
return 0;
|
|
}
|
|
|
|
iter_forward (parser->current);
|
|
|
|
return c;
|
|
}
|
|
|
|
|
|
static void flush_chars (MooTermParser *parser)
|
|
{
|
|
if (parser->character->len)
|
|
{
|
|
g_warning ("%s: invalid UTF8 '%s'", G_STRLOC,
|
|
parser->character->str);
|
|
VT_PRINT_CHAR (ERROR_CHAR);
|
|
g_string_truncate (parser->character, 0);
|
|
}
|
|
}
|
|
|
|
|
|
static void process_char (MooTermParser *parser, guchar c)
|
|
{
|
|
if (parser->character->len || c >= 128)
|
|
{
|
|
gunichar uc;
|
|
|
|
g_string_append_c (parser->character, c);
|
|
|
|
uc = g_utf8_get_char_validated (parser->character->str,
|
|
-1);
|
|
|
|
switch (uc)
|
|
{
|
|
case -2:
|
|
break;
|
|
|
|
case -1:
|
|
g_warning ("%s: invalid UTF8 '%s'", G_STRLOC,
|
|
parser->character->str);
|
|
VT_PRINT_CHAR (ERROR_CHAR);
|
|
g_string_truncate (parser->character, 0);
|
|
break;
|
|
|
|
default:
|
|
VT_PRINT_CHAR (uc);
|
|
g_string_truncate (parser->character, 0);
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
VT_PRINT_CHAR (c);
|
|
}
|
|
}
|
|
|
|
|
|
static void parser_init (MooTermParser *parser)
|
|
{
|
|
parser->save = FALSE;
|
|
|
|
if (parser->input.old_data->len)
|
|
{
|
|
parser->current->old = TRUE;
|
|
parser->current->offset = 0;
|
|
}
|
|
else
|
|
{
|
|
parser->current->old = FALSE;
|
|
parser->current->offset = 0;
|
|
}
|
|
|
|
iter_set_eof (parser->cmd_start);
|
|
|
|
g_string_truncate (parser->character, 0);
|
|
g_string_truncate (parser->intermediate, 0);
|
|
g_string_truncate (parser->parameters, 0);
|
|
g_string_truncate (parser->data, 0);
|
|
parser->final = 0;
|
|
}
|
|
|
|
|
|
static void parser_finish (MooTermParser *parser)
|
|
{
|
|
if (!parser->save)
|
|
g_string_truncate (parser->input.old_data, 0);
|
|
}
|
|
|
|
|
|
MooTermParser*
|
|
_moo_term_parser_new (MooTerm *term)
|
|
{
|
|
MooTermParser *p = g_new0 (MooTermParser, 1);
|
|
|
|
p->term = term;
|
|
|
|
p->character = g_string_new ("");
|
|
p->intermediate = g_string_new ("");
|
|
p->parameters = g_string_new ("");
|
|
p->data = g_string_new ("");
|
|
p->input.old_data = g_string_new ("");
|
|
|
|
p->current = iter_new (p);
|
|
p->cmd_start = iter_new (p);
|
|
|
|
p->numbers = g_array_sized_new (FALSE, FALSE,
|
|
sizeof(int),
|
|
MAX_PARAMS_NUM);
|
|
|
|
return p;
|
|
}
|
|
|
|
|
|
void
|
|
_moo_term_parser_reset (MooTermParser *parser)
|
|
{
|
|
g_string_truncate (parser->character, 0);
|
|
g_string_truncate (parser->intermediate, 0);
|
|
g_string_truncate (parser->parameters, 0);
|
|
g_string_truncate (parser->data, 0);
|
|
g_string_truncate (parser->input.old_data, 0);
|
|
}
|
|
|
|
|
|
void
|
|
_moo_term_parser_free (MooTermParser *parser)
|
|
{
|
|
if (parser)
|
|
{
|
|
g_string_free (parser->character, TRUE);
|
|
g_string_free (parser->intermediate, TRUE);
|
|
g_string_free (parser->parameters, TRUE);
|
|
g_string_free (parser->data, TRUE);
|
|
g_string_free (parser->input.old_data, TRUE);
|
|
g_array_free (parser->numbers, TRUE);
|
|
iter_free (parser->current);
|
|
iter_free (parser->cmd_start);
|
|
g_free (parser);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
_moo_term_parser_parse (MooTermParser *parser,
|
|
const char *string,
|
|
guint len)
|
|
{
|
|
guchar c;
|
|
|
|
if (!len)
|
|
return;
|
|
|
|
parser->input.data = (const guchar *) string;
|
|
parser->input.data_len = len;
|
|
parser_init (parser);
|
|
|
|
goto STATE_INITIAL_;
|
|
|
|
|
|
/* INITIAL - everything starts here. checks input for command sequence start */
|
|
STATE_INITIAL_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
CHECK_CANCEL (c, STATE_INITIAL_);
|
|
|
|
process_char (parser, c);
|
|
|
|
goto STATE_INITIAL_;
|
|
|
|
|
|
/* ESCAPE - got escape char */
|
|
STATE_ESCAPE_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
CHECK_CANCEL (c, STATE_ESCAPE_);
|
|
|
|
if (c == 0x5B)
|
|
goto STATE_CSI_;
|
|
else if (c == 0x5D)
|
|
goto STATE_OSC_;
|
|
else if (c == 0x5E)
|
|
goto STATE_PM_;
|
|
else if (c == 0x5F)
|
|
goto STATE_APC_;
|
|
else if (c == 0x50)
|
|
goto STATE_DCS_;
|
|
|
|
/* 0x20-0x2F - intermediate character */
|
|
if (0x20 <= c && c <= 0x2F)
|
|
{
|
|
APPEND_CHAR (intermediate, c);
|
|
goto STATE_ESCAPE_INTERMEDIATE_;
|
|
}
|
|
/* 0x30-0x7E - final character */
|
|
else if (0x30 <= c && c <= 0x7E)
|
|
{
|
|
parser->final = c;
|
|
exec_escape_sequence (parser);
|
|
GOTO_INITIAL
|
|
}
|
|
/* DEL - ignored */
|
|
else if (c == 0x7F)
|
|
{
|
|
goto STATE_ESCAPE_;
|
|
}
|
|
else
|
|
{
|
|
g_warning ("%s: got char '%c' after ESC", G_STRLOC, c);
|
|
GOTO_INITIAL
|
|
}
|
|
|
|
|
|
STATE_ESCAPE_INTERMEDIATE_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
CHECK_CANCEL (c, STATE_ESCAPE_INTERMEDIATE_);
|
|
|
|
/* 0x20-0x2F - intermediate character */
|
|
if (0x20 <= c && c <= 0x2F)
|
|
{
|
|
APPEND_CHAR (intermediate, c);
|
|
goto STATE_ESCAPE_INTERMEDIATE_;
|
|
}
|
|
/* 0x30-0x7E - final character */
|
|
else if (0x30 <= c && c <= 0x7E)
|
|
{
|
|
parser->final = c;
|
|
exec_escape_sequence (parser);
|
|
GOTO_INITIAL
|
|
}
|
|
/* DEL - ignored */
|
|
else if (c == 0x7F)
|
|
{
|
|
goto STATE_ESCAPE_INTERMEDIATE_;
|
|
}
|
|
else
|
|
{
|
|
g_warning ("%s: got char '%c' after ESC", G_STRLOC, c);
|
|
GOTO_INITIAL
|
|
}
|
|
|
|
|
|
/* APC - Application program command - ignore everything until ??? */
|
|
STATE_APC_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
switch (c)
|
|
{
|
|
/* CAN - cancel sequence in progress */
|
|
case 0x18:
|
|
GOTO_INITIAL
|
|
|
|
/* SUB - cancel sequence in progress and
|
|
print error */
|
|
case 0x1A:
|
|
VT_PRINT_CHAR (ERROR_CHAR);
|
|
GOTO_INITIAL
|
|
|
|
case 0x1B:
|
|
case 0x05:
|
|
case 0x07:
|
|
case 0x08:
|
|
case 0x09:
|
|
case 0x0A:
|
|
case 0x0B:
|
|
case 0x0C:
|
|
case 0x0D:
|
|
case 0x0E:
|
|
case 0x0F:
|
|
case 0x11:
|
|
case 0x13:
|
|
exec_apc (parser, c);
|
|
GOTO_INITIAL
|
|
|
|
default:
|
|
APPEND_CHAR (data, c);
|
|
goto STATE_APC_;
|
|
}
|
|
|
|
|
|
/* PM - Privacy message - ignore everything until ??? */
|
|
STATE_PM_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
switch (c)
|
|
{
|
|
/* CAN - cancel sequence in progress */
|
|
case 0x18:
|
|
GOTO_INITIAL
|
|
|
|
/* SUB - cancel sequence in progress and
|
|
print error */
|
|
case 0x1A:
|
|
VT_PRINT_CHAR (ERROR_CHAR);
|
|
GOTO_INITIAL
|
|
|
|
case 0x1B:
|
|
case 0x05:
|
|
case 0x07:
|
|
case 0x08:
|
|
case 0x09:
|
|
case 0x0A:
|
|
case 0x0B:
|
|
case 0x0C:
|
|
case 0x0D:
|
|
case 0x0E:
|
|
case 0x0F:
|
|
case 0x11:
|
|
case 0x13:
|
|
exec_pm (parser, c);
|
|
GOTO_INITIAL
|
|
|
|
default:
|
|
APPEND_CHAR (data, c);
|
|
goto STATE_PM_;
|
|
}
|
|
|
|
|
|
/* OSC - Operating system command - ignore everything until ??? */
|
|
STATE_OSC_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
switch (c)
|
|
{
|
|
/* CAN - cancel sequence in progress */
|
|
case 0x18:
|
|
GOTO_INITIAL
|
|
|
|
/* SUB - cancel sequence in progress and
|
|
print error */
|
|
case 0x1A:
|
|
VT_PRINT_CHAR (ERROR_CHAR);
|
|
GOTO_INITIAL
|
|
|
|
case 0x1B:
|
|
case 0x05:
|
|
case 0x07:
|
|
case 0x08:
|
|
case 0x09:
|
|
case 0x0A:
|
|
case 0x0B:
|
|
case 0x0C:
|
|
case 0x0D:
|
|
case 0x0E:
|
|
case 0x0F:
|
|
case 0x11:
|
|
case 0x13:
|
|
exec_osc (parser, c);
|
|
GOTO_INITIAL
|
|
|
|
default:
|
|
APPEND_CHAR (data, c);
|
|
goto STATE_OSC_;
|
|
}
|
|
|
|
|
|
/* CSI - control sequence introducer */
|
|
STATE_CSI_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
CHECK_CANCEL (c, STATE_CSI_);
|
|
|
|
if (0x30 <= c && c <= 0x3F)
|
|
{
|
|
APPEND_CHAR (parameters, c);
|
|
goto STATE_CSI_;
|
|
}
|
|
else if (0x20 <= c && c <= 0x2F)
|
|
{
|
|
APPEND_CHAR (intermediate, c);
|
|
goto STATE_CSI_INTERMEDIATE_;
|
|
}
|
|
else if (0x40 <= c && c <= 0x7E)
|
|
{
|
|
parser->final = c;
|
|
exec_csi (parser);
|
|
GOTO_INITIAL
|
|
}
|
|
else
|
|
{
|
|
char *s = _moo_term_nice_char (c);
|
|
g_warning ("%s: got '%s' after CSI", G_STRLOC, s);
|
|
g_free (s);
|
|
GOTO_INITIAL
|
|
}
|
|
|
|
|
|
/* STATE_CSI_INTERMEDIATE - CSI, gathering intermediate characters */
|
|
STATE_CSI_INTERMEDIATE_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
CHECK_CANCEL (c, STATE_CSI_INTERMEDIATE_);
|
|
|
|
if (0x20 <= c && c <= 0x2F)
|
|
{
|
|
APPEND_CHAR (intermediate, c);
|
|
goto STATE_CSI_INTERMEDIATE_;
|
|
}
|
|
else if (0x40 <= c && c <= 0x7E)
|
|
{
|
|
parser->final = c;
|
|
exec_csi (parser);
|
|
GOTO_INITIAL
|
|
}
|
|
else
|
|
{
|
|
char *s = _moo_term_nice_char (c);
|
|
g_warning ("%s: got '%s' after CSI", G_STRLOC, s);
|
|
g_free (s);
|
|
GOTO_INITIAL
|
|
}
|
|
|
|
|
|
/* DCS - Device control string */
|
|
STATE_DCS_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
DCS_CHECK_CANCEL (c);
|
|
|
|
if (0x30 <= c && c <= 0x3F)
|
|
{
|
|
APPEND_CHAR (parameters, c);
|
|
goto STATE_DCS_;
|
|
}
|
|
else if (0x20 <= c && c <= 0x2F)
|
|
{
|
|
APPEND_CHAR (intermediate, c);
|
|
goto STATE_DCS_INTERMEDIATE_;
|
|
}
|
|
else if (0x40 <= c && c <= 0x7E)
|
|
{
|
|
parser->final = c;
|
|
goto STATE_DCS_DATA_;
|
|
}
|
|
else
|
|
{
|
|
char *s = _moo_term_nice_char (c);
|
|
g_warning ("%s: got '%s' after DCS", G_STRLOC, s);
|
|
g_free (s);
|
|
GOTO_INITIAL
|
|
}
|
|
|
|
|
|
/* DCS - Device control string */
|
|
STATE_DCS_INTERMEDIATE_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
DCS_CHECK_CANCEL (c);
|
|
|
|
if (0x20 <= c && c <= 0x2F)
|
|
{
|
|
APPEND_CHAR (intermediate, c);
|
|
goto STATE_DCS_INTERMEDIATE_;
|
|
}
|
|
else if (0x40 <= c && c <= 0x7E)
|
|
{
|
|
parser->final = c;
|
|
goto STATE_DCS_DATA_;
|
|
}
|
|
else
|
|
{
|
|
char *s = _moo_term_nice_char (c);
|
|
g_warning ("%s: got '%s' after DCS", G_STRLOC, s);
|
|
g_free (s);
|
|
GOTO_INITIAL
|
|
}
|
|
|
|
|
|
/* DCS - Device control string */
|
|
STATE_DCS_DATA_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
DCS_CHECK_CANCEL (c);
|
|
APPEND_CHAR (data, c);
|
|
goto STATE_DCS_DATA_;
|
|
|
|
|
|
/* STATE_DCS_ESCAPE_ - got escape char in the DCS sequence */
|
|
STATE_DCS_ESCAPE_:
|
|
if (!(c = get_char (parser)))
|
|
return;
|
|
|
|
if (c != 0x5c)
|
|
{
|
|
iter_backward (parser->current);
|
|
GOTO_ESCAPE
|
|
}
|
|
else
|
|
{
|
|
exec_dcs (parser);
|
|
GOTO_INITIAL
|
|
}
|
|
}
|
|
|
|
|
|
/***************************************************************************/
|
|
/* Parsing and executing received command sequence
|
|
*/
|
|
|
|
static void exec_cmd (MooTermParser *parser,
|
|
guchar cmd)
|
|
{
|
|
switch (cmd)
|
|
{
|
|
case 0x07:
|
|
VT_BEL;
|
|
break;
|
|
case 0x08:
|
|
VT_BS;
|
|
break;
|
|
case 0x09:
|
|
VT_TAB;
|
|
break;
|
|
case 0x0A:
|
|
case 0x0B:
|
|
case 0x0C:
|
|
VT_LF;
|
|
break;
|
|
case 0x0D:
|
|
VT_CR;
|
|
break;
|
|
case 0x0E:
|
|
VT_SO;
|
|
break;
|
|
case 0x0F:
|
|
VT_SI;
|
|
break;
|
|
case 0x11:
|
|
VT_XON;
|
|
break;
|
|
case 0x13:
|
|
VT_XOFF;
|
|
break;
|
|
|
|
case 0x84:
|
|
VT_IND;
|
|
break;
|
|
case 0x85:
|
|
VT_NEL;
|
|
break;
|
|
case 0x88:
|
|
VT_HTS;
|
|
break;
|
|
case 0x8D:
|
|
VT_RI;
|
|
break;
|
|
case 0x8E:
|
|
VT_SS2;
|
|
break;
|
|
case 0x8F:
|
|
VT_SS3;
|
|
break;
|
|
case 0x9A:
|
|
VT_DECID;
|
|
break;
|
|
|
|
case 0x05:
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
|
|
|
|
static void init_yyparse (MooTermParser *parser,
|
|
LexType lex_type)
|
|
{
|
|
parser->lex.lex = lex_type;
|
|
parser->lex.part = PART_START;
|
|
parser->lex.offset = 0;
|
|
|
|
g_array_set_size (parser->numbers, 0);
|
|
}
|
|
|
|
|
|
int _moo_term_yylex (MooTermParser *parser)
|
|
{
|
|
guint offset = parser->lex.offset;
|
|
|
|
switch (parser->lex.lex)
|
|
{
|
|
case LEX_ESCAPE:
|
|
switch (parser->lex.part)
|
|
{
|
|
case PART_START:
|
|
if (!parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.part = PART_INTERMEDIATE;
|
|
return 0x1B;
|
|
|
|
case PART_INTERMEDIATE:
|
|
if (offset + 1 == parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.offset++;
|
|
return parser->intermediate->str[offset];
|
|
|
|
case PART_FINAL:
|
|
parser->lex.part = PART_DONE;
|
|
return parser->final;
|
|
|
|
case PART_DONE:
|
|
return 0;
|
|
|
|
case PART_PARAMETERS:
|
|
case PART_DATA:
|
|
case PART_ST:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
case LEX_CONTROL:
|
|
switch (parser->lex.part)
|
|
{
|
|
case PART_START:
|
|
if (!parser->parameters->len)
|
|
{
|
|
if (!parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.part = PART_INTERMEDIATE;
|
|
}
|
|
else
|
|
{
|
|
parser->lex.part = PART_PARAMETERS;
|
|
}
|
|
return 0x9B;
|
|
|
|
case PART_PARAMETERS:
|
|
if (offset + 1 == parser->parameters->len)
|
|
{
|
|
parser->lex.offset = 0;
|
|
|
|
if (!parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.part = PART_INTERMEDIATE;
|
|
}
|
|
else
|
|
{
|
|
parser->lex.offset++;
|
|
}
|
|
return parser->parameters->str[offset];
|
|
|
|
case PART_INTERMEDIATE:
|
|
if (offset + 1 == parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.offset++;
|
|
return parser->intermediate->str[offset];
|
|
|
|
case PART_FINAL:
|
|
parser->lex.part = PART_DONE;
|
|
return parser->final;
|
|
|
|
case PART_DONE:
|
|
return 0;
|
|
|
|
case PART_DATA:
|
|
case PART_ST:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
case LEX_DCS:
|
|
switch (parser->lex.part)
|
|
{
|
|
case PART_START:
|
|
if (!parser->parameters->len)
|
|
{
|
|
if (!parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.part = PART_INTERMEDIATE;
|
|
}
|
|
else
|
|
{
|
|
parser->lex.part = PART_PARAMETERS;
|
|
}
|
|
return 0x90;
|
|
|
|
case PART_PARAMETERS:
|
|
if (offset + 1 == parser->parameters->len)
|
|
{
|
|
parser->lex.offset = 0;
|
|
|
|
if (!parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.part = PART_INTERMEDIATE;
|
|
}
|
|
else
|
|
{
|
|
parser->lex.offset++;
|
|
}
|
|
return parser->parameters->str[offset];
|
|
|
|
case PART_INTERMEDIATE:
|
|
if (offset + 1 == parser->intermediate->len)
|
|
parser->lex.part = PART_FINAL;
|
|
else
|
|
parser->lex.offset++;
|
|
return parser->intermediate->str[offset];
|
|
|
|
case PART_FINAL:
|
|
if (!parser->data->len)
|
|
{
|
|
parser->lex.part = PART_ST;
|
|
}
|
|
else
|
|
{
|
|
parser->lex.part = PART_DATA;
|
|
parser->lex.offset = 0;
|
|
}
|
|
return parser->final;
|
|
|
|
case PART_DATA:
|
|
if (offset + 1 == parser->data->len)
|
|
parser->lex.part = PART_ST;
|
|
else
|
|
parser->lex.offset++;
|
|
return parser->data->str[offset];
|
|
|
|
case PART_ST:
|
|
parser->lex.part = PART_DONE;
|
|
return 0x9C;
|
|
|
|
case PART_DONE:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
g_return_val_if_reached (0);
|
|
}
|
|
|
|
|
|
char *_moo_term_current_ctl (MooTermParser *parser)
|
|
{
|
|
GString *s;
|
|
char *nice;
|
|
|
|
s = g_string_new ("");
|
|
|
|
switch (parser->lex.lex)
|
|
{
|
|
case LEX_ESCAPE:
|
|
g_string_append_c (s, '\033');
|
|
g_string_append_len (s, parser->intermediate->str,
|
|
parser->intermediate->len);
|
|
g_string_append_c (s, parser->final);
|
|
break;
|
|
|
|
case LEX_CONTROL:
|
|
g_string_append_c (s, '\233');
|
|
g_string_append_len (s, parser->parameters->str,
|
|
parser->parameters->len);
|
|
g_string_append_len (s, parser->intermediate->str,
|
|
parser->intermediate->len);
|
|
g_string_append_c (s, parser->final);
|
|
break;
|
|
|
|
case LEX_DCS:
|
|
g_string_append_c (s, '\220');
|
|
g_string_append_len (s, parser->parameters->str,
|
|
parser->parameters->len);
|
|
g_string_append_len (s, parser->intermediate->str,
|
|
parser->intermediate->len);
|
|
g_string_append_c (s, parser->final);
|
|
g_string_append_len (s, parser->data->str,
|
|
parser->data->len);
|
|
g_string_append_c (s, '\234');
|
|
break;
|
|
|
|
}
|
|
|
|
nice = _moo_term_nice_bytes (s->str, s->len);
|
|
g_string_free (s, TRUE);
|
|
return nice;
|
|
}
|
|
|
|
|
|
static void exec_escape_sequence (MooTermParser *parser)
|
|
{
|
|
init_yyparse (parser, LEX_ESCAPE);
|
|
DEBUG_CONTROL;
|
|
_moo_term_yyparse (parser);
|
|
}
|
|
|
|
|
|
static void exec_csi (MooTermParser *parser)
|
|
{
|
|
init_yyparse (parser, LEX_CONTROL);
|
|
DEBUG_CONTROL;
|
|
_moo_term_yyparse (parser);
|
|
}
|
|
|
|
|
|
static void exec_dcs (MooTermParser *parser)
|
|
{
|
|
init_yyparse (parser, LEX_DCS);
|
|
DEBUG_CONTROL;
|
|
_moo_term_yyparse (parser);
|
|
}
|
|
|
|
|
|
void _moo_term_yyerror (MooTermParser *parser,
|
|
G_GNUC_UNUSED const char *string)
|
|
{
|
|
char *s = _moo_term_current_ctl (parser);
|
|
g_warning ("parse error: '%s'\n", s);
|
|
g_free (s);
|
|
}
|
|
|
|
|
|
static void exec_apc (MooTermParser *parser,
|
|
guchar final)
|
|
{
|
|
char *s = g_strdup_printf ("\237%s%c", parser->data->str, final);
|
|
char *nice = _moo_term_nice_bytes (s, -1);
|
|
g_print ("%s\n", nice);
|
|
g_free (nice);
|
|
g_free (s);
|
|
}
|
|
|
|
|
|
static void exec_pm (MooTermParser *parser,
|
|
guchar final)
|
|
{
|
|
char *s = g_strdup_printf ("\236%s%c", parser->data->str, final);
|
|
char *nice = _moo_term_nice_bytes (s, -1);
|
|
g_print ("%s\n", nice);
|
|
g_free (nice);
|
|
g_free (s);
|
|
}
|
|
|
|
|
|
static void exec_osc (MooTermParser *parser,
|
|
guchar final)
|
|
{
|
|
if (parser->data->len >= 2 &&
|
|
parser->data->str[0] >= '0' &&
|
|
parser->data->str[0] <= '2' &&
|
|
parser->data->str[1] == ';')
|
|
{
|
|
char *title = parser->data->str + 2;
|
|
char cmd = parser->data->str[0];
|
|
|
|
switch (cmd)
|
|
{
|
|
case '0':
|
|
vt_SET_ICON_NAME (title);
|
|
vt_SET_WINDOW_TITLE (title);
|
|
break;
|
|
case '1':
|
|
vt_SET_ICON_NAME (title);
|
|
break;
|
|
case '2':
|
|
vt_SET_WINDOW_TITLE (title);
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char *s = g_strdup_printf ("\235%s%c", parser->data->str, final);
|
|
char *nice = _moo_term_nice_bytes (s, -1);
|
|
g_print ("%s\n", nice);
|
|
g_free (nice);
|
|
g_free (s);
|
|
}
|
|
}
|
|
|
|
|
|
char *_moo_term_nice_char (guchar c)
|
|
{
|
|
if (' ' <= c && c <= '~')
|
|
{
|
|
return g_strndup ((char*)&c, 1);
|
|
}
|
|
else
|
|
{
|
|
switch (c)
|
|
{
|
|
case 0x1B:
|
|
return g_strdup ("<ESC>");
|
|
case 0x84:
|
|
return g_strdup ("<IND>");
|
|
case 0x85:
|
|
return g_strdup ("<NEL>");
|
|
case 0x88:
|
|
return g_strdup ("<HTS>");
|
|
case 0x8D:
|
|
return g_strdup ("<RI>");
|
|
case 0x8E:
|
|
return g_strdup ("<SS2>");
|
|
case 0x8F:
|
|
return g_strdup ("<SS3>");
|
|
case 0x90:
|
|
return g_strdup ("<DCS>");
|
|
case 0x98:
|
|
return g_strdup ("<SOS>");
|
|
case 0x9A:
|
|
return g_strdup ("<DECID>");
|
|
case 0x9B:
|
|
return g_strdup ("<CSI>");
|
|
case 0x9C:
|
|
return g_strdup ("<ST>");
|
|
case 0x9D:
|
|
return g_strdup ("<OSC>");
|
|
case 0x9E:
|
|
return g_strdup ("<PM>");
|
|
case 0x9F:
|
|
return g_strdup ("<APC>");
|
|
default:
|
|
if ('A' - 64 <= c && c <= ']' - 64)
|
|
return g_strdup_printf ("^%c", c + 64);
|
|
else
|
|
return g_strdup_printf ("<%d>", c);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
char *_moo_term_nice_bytes (const char *string,
|
|
int len)
|
|
{
|
|
int i;
|
|
GString *str;
|
|
|
|
if (len < 0)
|
|
len = strlen (string);
|
|
|
|
str = g_string_new ("");
|
|
|
|
for (i = 0; i < len; ++i)
|
|
{
|
|
char *s = _moo_term_nice_char (string[i]);
|
|
g_string_append (str, s);
|
|
g_free (s);
|
|
}
|
|
|
|
return g_string_free (str, FALSE);
|
|
}
|