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vte: implement basic cursor movement CSI

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The A, B, C and D CSIs are used to move the cursor in the scroll-region
without scrolling the buffer when reaching the margins.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This commit is contained in:
David Herrmann 2012-02-05 16:01:12 +01:00
parent dcfbbc3e1d
commit 5f0d151bb7
1 changed files with 25 additions and 0 deletions
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25
src/vte.c
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@ -198,6 +198,7 @@ static void parse_control(struct kmscon_vte *vte, uint32_t ctrl)
static void parse_csi(struct kmscon_vte *vte, uint32_t val)
{
int new;
unsigned int num;
if (vte->parser.csi_flags & CSI_START) {
switch (val) {
@ -237,6 +238,30 @@ static void parse_csi(struct kmscon_vte *vte, uint32_t val)
vte->parser.state = STATE_NORMAL;
switch (val) {
case 'A':
num = vte->parser.csi_argv[0];
if (!num)
num = 1;
kmscon_console_move_up(vte->con, num, false);
break;
case 'B':
num = vte->parser.csi_argv[0];
if (!num)
num = 1;
kmscon_console_move_down(vte->con, num, false);
break;
case 'C':
num = vte->parser.csi_argv[0];
if (!num)
num = 1;
kmscon_console_move_right(vte->con, num);
break;
case 'D':
num = vte->parser.csi_argv[0];
if (!num)
num = 1;
kmscon_console_move_left(vte->con, num);
break;
case 'J':
if (vte->parser.csi_argc < 1 ||
vte->parser.csi_argv[0] == 0)