Implement the CBT (backward tab) sequence (\033[Z).

This commit is contained in:
Nicholas Marriott 2009-06-04 21:02:21 +00:00
parent d42fb43f4f
commit f031975dc0

26
input.c
View File

@ -67,6 +67,7 @@ void input_handle_sequence_cud(struct input_ctx *);
void input_handle_sequence_cuf(struct input_ctx *);
void input_handle_sequence_cub(struct input_ctx *);
void input_handle_sequence_dch(struct input_ctx *);
void input_handle_sequence_cbt(struct input_ctx *);
void input_handle_sequence_dl(struct input_ctx *);
void input_handle_sequence_ich(struct input_ctx *);
void input_handle_sequence_il(struct input_ctx *);
@ -102,6 +103,7 @@ const struct input_sequence_entry input_sequence_table[] = {
{ 'L', input_handle_sequence_il },
{ 'M', input_handle_sequence_dl },
{ 'P', input_handle_sequence_dch },
{ 'Z', input_handle_sequence_cbt },
{ 'd', input_handle_sequence_vpa },
{ 'f', input_handle_sequence_cup },
{ 'g', input_handle_sequence_tbc },
@ -927,6 +929,30 @@ input_handle_sequence_dch(struct input_ctx *ictx)
screen_write_deletecharacter(&ictx->ctx, n);
}
void
input_handle_sequence_cbt(struct input_ctx *ictx)
{
struct screen *s = ictx->ctx.s;
uint16_t n;
if (ictx->private != '\0')
return;
if (ARRAY_LENGTH(&ictx->args) > 1)
return;
if (input_get_argument(ictx, 0, &n, 1) != 0)
return;
if (n == 0)
n = 1;
/* Find the previous tab point, n times. */
while (s->cx > 0 && n-- > 0) {
do
s->cx--;
while (s->cx > 0 && !bit_test(s->tabs, s->cx));
}
}
void
input_handle_sequence_dl(struct input_ctx *ictx)
{