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Robert de Bath's patch: sort out once and for all the confusion

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between ESC [ ... Q and ESC [ ... ? Q (for all values of Q).

[originally from svn r402]
This commit is contained in:
Simon Tatham 2000-03-11 14:08:36 +00:00
parent 3ee28098bc
commit 06060def52
1 changed files with 56 additions and 36 deletions
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92
terminal.c
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@ -46,6 +46,8 @@ static int alt_which;
static int esc_args[ARGS_MAX];
static int esc_nargs;
static int esc_query;
#define ANSI(x,y) ((x)+((y)<<8))
#define ANSI_QUE(x) ANSI(x,TRUE)
#define OSC_STR_MAX 2048
static int osc_strlen;
@ -662,31 +664,30 @@ void term_out(void) {
}
else switch (termstate) {
case TOPLEVEL:
if (c >= ' ' && c != 0234) {
if (wrapnext) {
cpos[1] = ATTR_WRAPPED;
if (curs_y == marg_b)
scroll (marg_t, marg_b, 1, TRUE);
else if (curs_y < rows-1)
curs_y++;
curs_x = 0;
fix_cpos;
wrapnext = FALSE;
nl_count++;
}
if (insert)
insch (1);
check_selection (cpos, cpos+1);
*cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr |
(c <= 0x7F ? cset_attr[cset] : ATTR_ASCII);
curs_x++;
if (curs_x == cols) {
cpos--;
curs_x--;
wrapnext = wrap;
}
seen_disp_event = 1;
/* Only graphic characters get this far, ctrls are stripped above */
if (wrapnext) {
cpos[1] = ATTR_WRAPPED;
if (curs_y == marg_b)
scroll (marg_t, marg_b, 1, TRUE);
else if (curs_y < rows-1)
curs_y++;
curs_x = 0;
fix_cpos;
wrapnext = FALSE;
nl_count++;
}
if (insert)
insch (1);
check_selection (cpos, cpos+1);
*cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr |
(c <= 0x7F ? cset_attr[cset] : ATTR_ASCII);
curs_x++;
if (curs_x == cols) {
cpos--;
curs_x--;
wrapnext = wrap;
}
seen_disp_event = 1;
break;
case IGNORE_NEXT:
@ -789,9 +790,8 @@ void term_out(void) {
break;
case SEEN_CSI:
termstate = TOPLEVEL; /* default */
switch (c) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
if( isdigit(c) )
{
if (esc_nargs <= ARGS_MAX) {
if (esc_args[esc_nargs-1] == ARG_DEFAULT)
esc_args[esc_nargs-1] = 0;
@ -799,16 +799,21 @@ void term_out(void) {
10 * esc_args[esc_nargs-1] + c - '0';
}
termstate = SEEN_CSI;
break;
case ';':
}
else if( c == ';' )
{
if (++esc_nargs <= ARGS_MAX)
esc_args[esc_nargs-1] = ARG_DEFAULT;
termstate = SEEN_CSI;
break;
case '?':
esc_query = TRUE;
}
else if( c < '@' )
{
if( esc_query ) esc_query = -1;
else if( c == '?' ) esc_query = TRUE;
else esc_query = c;
termstate = SEEN_CSI;
break;
}
else switch (ANSI(c,esc_query)) {
case 'A': /* move up N lines */
move (curs_x, curs_y - def(esc_args[0], 1), 1);
seen_disp_event = TRUE;
@ -898,9 +903,11 @@ void term_out(void) {
}
break;
case 'h': /* toggle a mode to high */
case ANSI_QUE('h'):
toggle_mode (esc_args[0], esc_query, TRUE);
break;
case 'l': /* toggle a mode to low */
case ANSI_QUE('l'):
toggle_mode (esc_args[0], esc_query, FALSE);
break;
case 'g': /* clear tabs */
@ -915,7 +922,7 @@ void term_out(void) {
}
break;
case 'r': /* set scroll margins */
if (!esc_query && esc_nargs <= 2) {
if (esc_nargs <= 2) {
int top, bot;
top = def(esc_args[0], 1) - 1;
if (top < 0)
@ -1033,7 +1040,8 @@ void term_out(void) {
cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_ASCII;
break;
}
termstate = TOPLEVEL;
if( c != '%' )
termstate = TOPLEVEL;
break;
case SEEN_OSC:
osc_w = FALSE;
@ -1071,7 +1079,19 @@ void term_out(void) {
}
break;
case OSC_STRING:
if (c == 0234 || c == '\007') {
/*
* This OSC stuff is EVIL. It takes just one character to get into
* sysline mode and it's not initially obvious how to get out.
* So I've added CR and LF as string aborts.
* This shouldn't effect compatibility as I believe embedded
* control characters are supposed to be interpreted (maybe?)
* and they don't display anything useful anyway.
*
* -- RDB
*/
if (c == '\n' || c == '\r') {
termstate = TOPLEVEL;
} else if (c == 0234 || c == '\007' ) {
/*
* These characters terminate the string; ST and BEL
* terminate the sequence and trigger instant