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vt: execute: implement HT - horizontal tab

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Daniel Eklöf 2019-06-26 19:58:37 +02:00
parent 3a97fce6d0
commit dbd883935b
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1 changed files with 13 additions and 1 deletions
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14
vt.c
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@ -604,6 +604,7 @@ action(struct terminal *term, enum action action, uint8_t c)
LOG_DBG("execute: 0x%02x", c); LOG_DBG("execute: 0x%02x", c);
switch (c) { switch (c) {
case '\n': case '\n':
/* LF - line feed */
if (term->grid.cursor.row == term->grid.scroll_region.end - 1) { if (term->grid.cursor.row == term->grid.scroll_region.end - 1) {
grid_scroll(&term->grid, 1); grid_scroll(&term->grid, 1);
} else } else
@ -611,19 +612,30 @@ action(struct terminal *term, enum action action, uint8_t c)
break; break;
case '\r': case '\r':
/* FF - form feed */
grid_cursor_left(&term->grid, term->grid.cursor.col); grid_cursor_left(&term->grid, term->grid.cursor.col);
break; break;
case '\b': case '\b':
/* backspace */
grid_cursor_left(&term->grid, 1); grid_cursor_left(&term->grid, 1);
break; break;
case '\x07': case '\x07':
/* BEL */
LOG_WARN("BELL"); LOG_WARN("BELL");
break; break;
case '\x09': {
/* HT - horizontal tab */
int col = term->grid.cursor.col;
col = (col + 8) / 8 * 8;
grid_cursor_right(&term->grid, col - term->grid.cursor.col);
break;
}
default: default:
LOG_ERR("execute: unimplemented: %c", c); LOG_ERR("execute: unimplemented: %c (0x%02x)", c, c);
return false; return false;
} }