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vt: esc dispatch: implement DECALN

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In esc dispatch:

* Switch on private first, then final
* Recognize ESC #8 (DECALN), and implement it
This commit is contained in:
Daniel Eklöf 2019-11-05 11:32:56 +01:00
parent 342d6036f9
commit 33ea88aba6
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GPG key ID: 5BBD4992C116573F
1 changed files with 126 additions and 73 deletions
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199
vt.c
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@ -591,95 +591,148 @@ esc_dispatch(struct terminal *term, uint8_t final)
{
LOG_DBG("ESC: %s", esc_as_string(term, final));
switch (final) {
case '7':
term->saved_cursor = term->cursor;
term->vt.saved_attrs = term->vt.attrs;
break;
switch (term->vt.private[0]) {
case 0:
switch (final) {
case '7':
term->saved_cursor = term->cursor;
term->vt.saved_attrs = term->vt.attrs;
break;
case '8':
term_restore_cursor(term);
term->vt.attrs = term->vt.saved_attrs;
break;
case '8':
term_restore_cursor(term);
term->vt.attrs = term->vt.saved_attrs;
break;
case 'c':
term_reset(term, true);
break;
case 'c':
term_reset(term, true);
break;
case 'B': {
/* Configure G0-G3 to use ASCII */
char param = term->vt.private[0] != 0 ? term->vt.private[0] : 0;
#if 0
case '0': {
/* Configure G0-G3 to use special chars + line drawing */
char param = term->vt.private[0] != 0 ? term->vt.private[0] : 0;
switch (param) {
case '(': term->charset[0] = CHARSET_ASCII; break;
case ')': term->charset[1] = CHARSET_ASCII; break;
case '*': term->charset[2] = CHARSET_ASCII; break;
case '+': term->charset[3] = CHARSET_ASCII; break;
case 0: break;
switch (param) {
case '(': term->charset[0] = CHARSET_GRAPHIC; break;
case ')': term->charset[1] = CHARSET_GRAPHIC; break;
case '*': term->charset[2] = CHARSET_GRAPHIC; break;
case '+': term->charset[3] = CHARSET_GRAPHIC; break;
case 0: break;
default:
UNHANDLED();
break;
}
break;
}
case 'B': {
/* Configure G0-G3 to use ASCII */
char param = term->vt.private[0] != 0 ? term->vt.private[0] : 0;
switch (param) {
case '(': term->charset[0] = CHARSET_ASCII; break;
case ')': term->charset[1] = CHARSET_ASCII; break;
case '*': term->charset[2] = CHARSET_ASCII; break;
case '+': term->charset[3] = CHARSET_ASCII; break;
case 0: break;
default:
UNHANDLED();
break;
}
break;
}
#endif
case 'D':
term_linefeed(term);
break;
case 'E':
term_linefeed(term);
term_cursor_left(term, term->cursor.col);
break;
case 'M':
term_reverse_index(term);
break;
case 'N':
/* SS2 - Single Shift 2 */
term->selected_charset = 2; /* G2 */
break;
case 'O':
/* SS3 - Single Shift 3 */
term->selected_charset = 3; /* G3 */
break;
case '\\':
/* ST - String Terminator */
break;
case '=':
term->keypad_keys_mode = KEYPAD_APPLICATION;
break;
case '>':
term->keypad_keys_mode = KEYPAD_NUMERICAL;
break;
default:
UNHANDLED();
break;
}
break;
}
break; /* private[0] == 0 */
case 'D':
term_linefeed(term);
break;
case 'E':
term_linefeed(term);
term_cursor_left(term, term->cursor.col);
break;
case 'M':
term_reverse_index(term);
break;
case 'N':
/* SS2 - Single Shift 2 */
term->selected_charset = 2; /* G2 */
break;
case 'O':
/* SS3 - Single Shift 3 */
term->selected_charset = 3; /* G3 */
break;
case '\\':
/* ST - String Terminator */
break;
case '0': {
/* Configure G0-G3 to use special chars + line drawing */
char param = term->vt.private[0] != 0 ? term->vt.private[0] : 0;
switch (param) {
case '(': term->charset[0] = CHARSET_GRAPHIC; break;
case ')': term->charset[1] = CHARSET_GRAPHIC; break;
case '*': term->charset[2] = CHARSET_GRAPHIC; break;
case '+': term->charset[3] = CHARSET_GRAPHIC; break;
case 0: break;
default:
UNHANDLED();
case '(':
case ')':
case '*':
case '+':
switch (final) {
case '0': {
char priv = term->vt.private[0];
ssize_t idx = priv ==
'(' ? 0 :
')' ? 1 :
'*' ? 2 :
'+' ? 3 : -1;
assert(idx != -1);
term->charset[idx] = CHARSET_GRAPHIC;
break;
}
break;
}
case '=':
term->keypad_keys_mode = KEYPAD_APPLICATION;
case 'B': {
char priv = term->vt.private[0];
ssize_t idx = priv ==
'(' ? 0 :
')' ? 1 :
'*' ? 2 :
'+' ? 3 : -1;
assert(idx != -1);
term->charset[idx] = CHARSET_ASCII;
break;
}
}
break;
case '>':
term->keypad_keys_mode = KEYPAD_NUMERICAL;
break;
case '#':
switch (final) {
case '8':
for (int r = 0; r < term->rows; r++) {
struct row *row = grid_row_in_view(term->grid, r);
for (int c = 0; c < term->cols; c++) {
row->cells[c].wc = L'E';
row->cells[c].attrs.clean = 0;
}
row->dirty = true;
}
break;
}
break; /* private[0] == '#' */
default:
UNHANDLED();
break;
}
}