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Add comments to case statements containing the mnemonics for the various
escape and control sequences. This should make it easier to find the implementation of the one you're interested in. [originally from svn r3283]
This commit is contained in:
Ben Harris
parent
f97b7768ab
commit
a00efa525a
177
terminal.c
177
terminal.c
@ -1174,10 +1174,10 @@ static void toggle_mode(Terminal *term, int mode, int query, int state)
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if (query)
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switch (mode) {
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case 1: /* application cursor keys */
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case 1: /* DECCKM: application cursor keys */
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term->app_cursor_keys = state;
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break;
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case 2: /* VT52 mode */
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case 2: /* DECANM: VT52 mode */
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term->vt52_mode = !state;
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if (term->vt52_mode) {
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term->blink_is_real = FALSE;
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@ -1186,7 +1186,7 @@ static void toggle_mode(Terminal *term, int mode, int query, int state)
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term->blink_is_real = term->cfg.blinktext;
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}
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break;
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case 3: /* 80/132 columns */
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case 3: /* DECCOLM: 80/132 columns */
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deselect(term);
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if (!term->cfg.no_remote_resize)
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request_resize(term->frontend, state ? 132 : 80, term->rows);
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@ -1196,7 +1196,7 @@ static void toggle_mode(Terminal *term, int mode, int query, int state)
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move(term, 0, 0, 0);
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erase_lots(term, FALSE, TRUE, TRUE);
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break;
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case 5: /* reverse video */
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case 5: /* DECSCNM: reverse video */
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/*
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* Toggle reverse video. If we receive an OFF within the
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* visual bell timeout period after an ON, we trigger an
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@ -1225,21 +1225,21 @@ static void toggle_mode(Terminal *term, int mode, int query, int state)
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if (state)
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term_update(term);
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break;
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case 6: /* DEC origin mode */
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case 6: /* DECOM: DEC origin mode */
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term->dec_om = state;
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break;
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case 7: /* auto wrap */
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case 7: /* DECAWM: auto wrap */
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term->wrap = state;
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break;
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case 8: /* auto key repeat */
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case 8: /* DECARM: auto key repeat */
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term->repeat_off = !state;
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break;
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case 10: /* set local edit mode */
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case 10: /* DECEDM: set local edit mode */
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term->term_editing = state;
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if (term->ldisc) /* cause ldisc to notice changes */
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ldisc_send(term->ldisc, NULL, 0, 0);
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break;
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case 25: /* enable/disable cursor */
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case 25: /* DECTCEM: enable/disable cursor */
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compatibility2(OTHER, VT220);
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term->cursor_on = state;
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term->seen_disp_event = TRUE;
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@ -1282,19 +1282,19 @@ static void toggle_mode(Terminal *term, int mode, int query, int state)
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break;
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} else
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switch (mode) {
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case 4: /* set insert mode */
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case 4: /* IRM: set insert mode */
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compatibility(VT102);
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term->insert = state;
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break;
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case 12: /* set echo mode */
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case 12: /* SRM: set echo mode */
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term->term_echoing = !state;
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if (term->ldisc) /* cause ldisc to notice changes */
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ldisc_send(term->ldisc, NULL, 0, 0);
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break;
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case 20: /* Return sends ... */
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case 20: /* LNM: Return sends ... */
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term->cr_lf_return = state;
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break;
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case 34: /* Make cursor BIG */
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case 34: /* WYULCURM: Make cursor BIG */
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compatibility2(OTHER, VT220);
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term->big_cursor = !state;
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}
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@ -1602,7 +1602,7 @@ void term_out(Terminal *term)
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/* Or normal C0 controls. */
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if ((c & -32) == 0 && term->termstate < DO_CTRLS) {
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switch (c) {
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case '\005': /* terminal type query */
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case '\005': /* ENQ: terminal type query */
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/* Strictly speaking this is VT100 but a VT100 defaults to
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* no response. Other terminals respond at their option.
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*
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@ -1634,7 +1634,7 @@ void term_out(Terminal *term)
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abuf, d - abuf, 0);
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}
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break;
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case '\007':
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case '\007': /* BEL: Bell */
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{
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struct beeptime *newbeep;
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unsigned long ticks;
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@ -1700,7 +1700,7 @@ void term_out(Terminal *term)
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term->disptop = 0;
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}
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break;
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case '\b':
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case '\b': /* BS: Back space */
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if (term->curs.x == 0 &&
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(term->curs.y == 0 || term->wrap == 0))
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/* do nothing */ ;
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@ -1713,15 +1713,15 @@ void term_out(Terminal *term)
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fix_cpos;
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term->seen_disp_event = TRUE;
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break;
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case '\016':
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case '\016': /* LS1: Locking-shift one */
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compatibility(VT100);
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term->cset = 1;
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break;
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case '\017':
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case '\017': /* LS0: Locking-shift zero */
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compatibility(VT100);
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term->cset = 0;
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break;
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case '\033':
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case '\033': /* ESC: Escape */
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if (term->vt52_mode)
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term->termstate = VT52_ESC;
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else {
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@ -1730,7 +1730,7 @@ void term_out(Terminal *term)
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term->esc_query = FALSE;
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}
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break;
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case '\015':
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case '\015': /* CR: Carriage return */
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term->curs.x = 0;
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term->wrapnext = FALSE;
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fix_cpos;
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@ -1739,7 +1739,7 @@ void term_out(Terminal *term)
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if (term->logctx)
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logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
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break;
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case '\014':
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case '\014': /* FF: Form feed */
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if (has_compat(SCOANSI)) {
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move(term, 0, 0, 0);
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erase_lots(term, FALSE, FALSE, TRUE);
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@ -1748,9 +1748,9 @@ void term_out(Terminal *term)
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term->seen_disp_event = 1;
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break;
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}
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case '\013':
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case '\013': /* VT: Line tabulation */
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compatibility(VT100);
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case '\012':
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case '\012': /* LF: Line feed */
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if (term->curs.y == term->marg_b)
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scroll(term, term->marg_t, term->marg_b, 1, TRUE);
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else if (term->curs.y < term->rows - 1)
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@ -1764,7 +1764,7 @@ void term_out(Terminal *term)
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if (term->logctx)
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logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
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break;
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case '\t':
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case '\t': /* HT: Character tabulation */
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{
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pos old_curs = term->curs;
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unsigned long *ldata = lineptr(term->curs.y);
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@ -1910,36 +1910,36 @@ void term_out(Terminal *term)
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}
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term->termstate = TOPLEVEL;
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switch (ANSI(c, term->esc_query)) {
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case '[': /* enter CSI mode */
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case '[': /* enter CSI mode */
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term->termstate = SEEN_CSI;
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term->esc_nargs = 1;
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term->esc_args[0] = ARG_DEFAULT;
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term->esc_query = FALSE;
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break;
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case ']': /* xterm escape sequences */
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case ']': /* OSC: xterm escape sequences */
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/* Compatibility is nasty here, xterm, linux, decterm yuk! */
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compatibility(OTHER);
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term->termstate = SEEN_OSC;
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term->esc_args[0] = 0;
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break;
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case '7': /* save cursor */
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case '7': /* DECSC: save cursor */
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compatibility(VT100);
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save_cursor(term, TRUE);
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break;
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case '8': /* restore cursor */
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case '8': /* DECRC: restore cursor */
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compatibility(VT100);
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save_cursor(term, FALSE);
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term->seen_disp_event = TRUE;
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break;
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case '=':
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case '=': /* DECKPAM: Keypad application mode */
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compatibility(VT100);
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term->app_keypad_keys = TRUE;
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break;
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case '>':
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case '>': /* DECKPNM: Keypad numeric mode */
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compatibility(VT100);
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term->app_keypad_keys = FALSE;
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break;
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case 'D': /* exactly equivalent to LF */
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case 'D': /* IND: exactly equivalent to LF */
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compatibility(VT100);
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if (term->curs.y == term->marg_b)
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scroll(term, term->marg_t, term->marg_b, 1, TRUE);
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@ -1949,7 +1949,7 @@ void term_out(Terminal *term)
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term->wrapnext = FALSE;
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term->seen_disp_event = TRUE;
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break;
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case 'E': /* exactly equivalent to CR-LF */
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case 'E': /* NEL: exactly equivalent to CR-LF */
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compatibility(VT100);
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term->curs.x = 0;
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if (term->curs.y == term->marg_b)
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@ -1960,7 +1960,7 @@ void term_out(Terminal *term)
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term->wrapnext = FALSE;
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term->seen_disp_event = TRUE;
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break;
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case 'M': /* reverse index - backwards LF */
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case 'M': /* RI: reverse index - backwards LF */
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compatibility(VT100);
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if (term->curs.y == term->marg_t)
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scroll(term, term->marg_t, term->marg_b, -1, TRUE);
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@ -1970,13 +1970,13 @@ void term_out(Terminal *term)
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term->wrapnext = FALSE;
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term->seen_disp_event = TRUE;
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break;
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case 'Z': /* terminal type query */
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case 'Z': /* DECID: terminal type query */
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compatibility(VT100);
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if (term->ldisc)
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ldisc_send(term->ldisc, term->id_string,
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strlen(term->id_string), 0);
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break;
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case 'c': /* restore power-on settings */
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case 'c': /* RIS: restore power-on settings */
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compatibility(VT100);
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power_on(term);
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if (term->ldisc) /* cause ldisc to notice changes */
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@ -1990,12 +1990,12 @@ void term_out(Terminal *term)
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term->disptop = 0;
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term->seen_disp_event = TRUE;
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break;
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case 'H': /* set a tab */
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case 'H': /* HTS: set a tab */
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compatibility(VT100);
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term->tabs[term->curs.x] = TRUE;
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break;
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case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
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case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
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compatibility(VT100);
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{
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unsigned long *ldata;
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@ -2026,16 +2026,16 @@ void term_out(Terminal *term)
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unsigned long nlattr;
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unsigned long *ldata;
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switch (ANSI(c, term->esc_query)) {
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case ANSI('3', '#'):
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case ANSI('3', '#'): /* DECDHL: 2*height, top */
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nlattr = LATTR_TOP;
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break;
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case ANSI('4', '#'):
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case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
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nlattr = LATTR_BOT;
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break;
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case ANSI('5', '#'):
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case ANSI('5', '#'): /* DECSWL: normal */
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nlattr = LATTR_NORM;
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break;
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default: /* spiritually case ANSI('6', '#'): */
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default: /* case ANSI('6', '#'): DECDWL: 2*width */
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nlattr = LATTR_WIDE;
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break;
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}
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@ -2044,7 +2044,7 @@ void term_out(Terminal *term)
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ldata[term->cols] |= nlattr;
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}
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break;
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/* GZD4: G0 designate 94-set */
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case ANSI('A', '('):
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compatibility(VT100);
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if (!term->cfg.no_remote_charset)
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@ -2065,7 +2065,7 @@ void term_out(Terminal *term)
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if (!term->cfg.no_remote_charset)
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term->cset_attr[0] = ATTR_SCOACS;
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break;
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/* G1D4: G1-designate 94-set */
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case ANSI('A', ')'):
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compatibility(VT100);
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if (!term->cfg.no_remote_charset)
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@ -2086,7 +2086,7 @@ void term_out(Terminal *term)
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if (!term->cfg.no_remote_charset)
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term->cset_attr[1] = ATTR_SCOACS;
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break;
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/* DOCS: Designate other coding system */
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case ANSI('8', '%'): /* Old Linux code */
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case ANSI('G', '%'):
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compatibility(OTHER);
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@ -2124,59 +2124,59 @@ void term_out(Terminal *term)
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term->termstate = SEEN_CSI;
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} else
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switch (ANSI(c, term->esc_query)) {
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case 'A': /* move up N lines */
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case 'A': /* CUU: move up N lines */
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move(term, term->curs.x,
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term->curs.y - def(term->esc_args[0], 1), 1);
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term->seen_disp_event = TRUE;
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break;
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case 'e': /* move down N lines */
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case 'e': /* VPR: move down N lines */
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compatibility(ANSI);
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/* FALLTHROUGH */
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case 'B':
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case 'B': /* CUD: Cursor down */
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move(term, term->curs.x,
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term->curs.y + def(term->esc_args[0], 1), 1);
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term->seen_disp_event = TRUE;
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break;
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case ANSI('c', '>'): /* report xterm version */
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case ANSI('c', '>'): /* DA: report xterm version */
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compatibility(OTHER);
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/* this reports xterm version 136 so that VIM can
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use the drag messages from the mouse reporting */
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if (term->ldisc)
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ldisc_send(term->ldisc, "\033[>0;136;0c", 11, 0);
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break;
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case 'a': /* move right N cols */
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case 'a': /* HPR: move right N cols */
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compatibility(ANSI);
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/* FALLTHROUGH */
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case 'C':
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case 'C': /* CUF: Cursor right */
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move(term, term->curs.x + def(term->esc_args[0], 1),
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term->curs.y, 1);
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term->seen_disp_event = TRUE;
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break;
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case 'D': /* move left N cols */
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case 'D': /* CUB: move left N cols */
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move(term, term->curs.x - def(term->esc_args[0], 1),
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term->curs.y, 1);
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term->seen_disp_event = TRUE;
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break;
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case 'E': /* move down N lines and CR */
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case 'E': /* CNL: move down N lines and CR */
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compatibility(ANSI);
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move(term, 0,
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term->curs.y + def(term->esc_args[0], 1), 1);
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term->seen_disp_event = TRUE;
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break;
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case 'F': /* move up N lines and CR */
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case 'F': /* CPL: move up N lines and CR */
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compatibility(ANSI);
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move(term, 0,
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term->curs.y - def(term->esc_args[0], 1), 1);
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term->seen_disp_event = TRUE;
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break;
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case 'G':
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case '`': /* set horizontal posn */
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case 'G': /* CHA */
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case '`': /* HPA: set horizontal posn */
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compatibility(ANSI);
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move(term, def(term->esc_args[0], 1) - 1,
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term->curs.y, 0);
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term->seen_disp_event = TRUE;
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break;
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case 'd': /* set vertical posn */
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case 'd': /* VPA: set vertical posn */
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compatibility(ANSI);
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move(term, term->curs.x,
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((term->dec_om ? term->marg_t : 0) +
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@ -2184,8 +2184,8 @@ void term_out(Terminal *term)
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(term->dec_om ? 2 : 0));
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term->seen_disp_event = TRUE;
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break;
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case 'H':
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case 'f': /* set horz and vert posns at once */
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case 'H': /* CUP */
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case 'f': /* HVP: set horz and vert posns at once */
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if (term->esc_nargs < 2)
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term->esc_args[1] = ARG_DEFAULT;
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move(term, def(term->esc_args[1], 1) - 1,
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@ -2194,7 +2194,7 @@ void term_out(Terminal *term)
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(term->dec_om ? 2 : 0));
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term->seen_disp_event = TRUE;
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break;
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case 'J': /* erase screen or parts of it */
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case 'J': /* ED: erase screen or parts of it */
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{
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unsigned int i = def(term->esc_args[0], 0) + 1;
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if (i > 3)
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@ -2204,7 +2204,7 @@ void term_out(Terminal *term)
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term->disptop = 0;
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term->seen_disp_event = TRUE;
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break;
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case 'K': /* erase line or parts of it */
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case 'K': /* EL: erase line or parts of it */
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{
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unsigned int i = def(term->esc_args[0], 0) + 1;
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if (i > 3)
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@ -2213,7 +2213,7 @@ void term_out(Terminal *term)
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}
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term->seen_disp_event = TRUE;
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break;
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case 'L': /* insert lines */
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case 'L': /* IL: insert lines */
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compatibility(VT102);
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if (term->curs.y <= term->marg_b)
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scroll(term, term->curs.y, term->marg_b,
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@ -2221,7 +2221,7 @@ void term_out(Terminal *term)
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fix_cpos;
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term->seen_disp_event = TRUE;
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break;
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case 'M': /* delete lines */
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case 'M': /* DL: delete lines */
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compatibility(VT102);
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if (term->curs.y <= term->marg_b)
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scroll(term, term->curs.y, term->marg_b,
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@ -2230,25 +2230,25 @@ void term_out(Terminal *term)
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fix_cpos;
|
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term->seen_disp_event = TRUE;
|
||||
break;
|
||||
case '@': /* insert chars */
|
||||
case '@': /* ICH: insert chars */
|
||||
/* XXX VTTEST says this is vt220, vt510 manual says vt102 */
|
||||
compatibility(VT102);
|
||||
insch(term, def(term->esc_args[0], 1));
|
||||
term->seen_disp_event = TRUE;
|
||||
break;
|
||||
case 'P': /* delete chars */
|
||||
case 'P': /* DCH: delete chars */
|
||||
compatibility(VT102);
|
||||
insch(term, -def(term->esc_args[0], 1));
|
||||
term->seen_disp_event = TRUE;
|
||||
break;
|
||||
case 'c': /* terminal type query */
|
||||
case 'c': /* DA: terminal type query */
|
||||
compatibility(VT100);
|
||||
/* This is the response for a VT102 */
|
||||
if (term->ldisc)
|
||||
ldisc_send(term->ldisc, term->id_string,
|
||||
strlen(term->id_string), 0);
|
||||
break;
|
||||
case 'n': /* cursor position query */
|
||||
case 'n': /* DSR: cursor position query */
|
||||
if (term->ldisc) {
|
||||
if (term->esc_args[0] == 6) {
|
||||
char buf[32];
|
||||
@ -2260,7 +2260,7 @@ void term_out(Terminal *term)
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 'h': /* toggle modes to high */
|
||||
case 'h': /* SM: toggle modes to high */
|
||||
case ANSI_QUE('h'):
|
||||
compatibility(VT100);
|
||||
{
|
||||
@ -2270,7 +2270,7 @@ void term_out(Terminal *term)
|
||||
term->esc_query, TRUE);
|
||||
}
|
||||
break;
|
||||
case 'i':
|
||||
case 'i': /* MC: Media copy */
|
||||
case ANSI_QUE('i'):
|
||||
compatibility(VT100);
|
||||
{
|
||||
@ -2286,7 +2286,7 @@ void term_out(Terminal *term)
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 'l': /* toggle modes to low */
|
||||
case 'l': /* RM: toggle modes to low */
|
||||
case ANSI_QUE('l'):
|
||||
compatibility(VT100);
|
||||
{
|
||||
@ -2296,7 +2296,7 @@ void term_out(Terminal *term)
|
||||
term->esc_query, FALSE);
|
||||
}
|
||||
break;
|
||||
case 'g': /* clear tabs */
|
||||
case 'g': /* TBC: clear tabs */
|
||||
compatibility(VT100);
|
||||
if (term->esc_nargs == 1) {
|
||||
if (term->esc_args[0] == 0) {
|
||||
@ -2308,7 +2308,7 @@ void term_out(Terminal *term)
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 'r': /* set scroll margins */
|
||||
case 'r': /* DECSTBM: set scroll margins */
|
||||
compatibility(VT100);
|
||||
if (term->esc_nargs <= 2) {
|
||||
int top, bot;
|
||||
@ -2342,7 +2342,7 @@ void term_out(Terminal *term)
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 'm': /* set graphics rendition */
|
||||
case 'm': /* SGR: set graphics rendition */
|
||||
{
|
||||
/*
|
||||
* A VT100 without the AVO only had one
|
||||
@ -2506,7 +2506,7 @@ void term_out(Terminal *term)
|
||||
save_cursor(term, FALSE);
|
||||
term->seen_disp_event = TRUE;
|
||||
break;
|
||||
case 't': /* set page size - ie window height */
|
||||
case 't': /* DECSLPP: set page size - ie window height */
|
||||
/*
|
||||
* VT340/VT420 sequence DECSLPP, DEC only allows values
|
||||
* 24/25/36/48/72/144 other emulators (eg dtterm) use
|
||||
@ -2641,7 +2641,7 @@ void term_out(Terminal *term)
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 'S':
|
||||
case 'S': /* SU: Scroll up */
|
||||
compatibility(SCOANSI);
|
||||
scroll(term, term->marg_t, term->marg_b,
|
||||
def(term->esc_args[0], 1), TRUE);
|
||||
@ -2649,7 +2649,7 @@ void term_out(Terminal *term)
|
||||
term->wrapnext = FALSE;
|
||||
term->seen_disp_event = TRUE;
|
||||
break;
|
||||
case 'T':
|
||||
case 'T': /* SD: Scroll down */
|
||||
compatibility(SCOANSI);
|
||||
scroll(term, term->marg_t, term->marg_b,
|
||||
-def(term->esc_args[0], 1), TRUE);
|
||||
@ -2657,11 +2657,12 @@ void term_out(Terminal *term)
|
||||
term->wrapnext = FALSE;
|
||||
term->seen_disp_event = TRUE;
|
||||
break;
|
||||
case ANSI('|', '*'):
|
||||
/* VT420 sequence DECSNLS
|
||||
case ANSI('|', '*'): /* DECSNLS */
|
||||
/*
|
||||
* Set number of lines on screen
|
||||
* VT420 uses VGA like hardware and can support any size in
|
||||
* reasonable range (24..49 AIUI) with no default specified.
|
||||
* VT420 uses VGA like hardware and can
|
||||
* support any size in reasonable range
|
||||
* (24..49 AIUI) with no default specified.
|
||||
*/
|
||||
compatibility(VT420);
|
||||
if (term->esc_nargs == 1 && term->esc_args[0] > 0) {
|
||||
@ -2672,10 +2673,11 @@ void term_out(Terminal *term)
|
||||
deselect(term);
|
||||
}
|
||||
break;
|
||||
case ANSI('|', '$'):
|
||||
/* VT340/VT420 sequence DECSCPP
|
||||
case ANSI('|', '$'): /* DECSCPP */
|
||||
/*
|
||||
* Set number of columns per page
|
||||
* Docs imply range is only 80 or 132, but I'll allow any.
|
||||
* Docs imply range is only 80 or 132, but
|
||||
* I'll allow any.
|
||||
*/
|
||||
compatibility(VT340TEXT);
|
||||
if (term->esc_nargs <= 1) {
|
||||
@ -2686,8 +2688,9 @@ void term_out(Terminal *term)
|
||||
deselect(term);
|
||||
}
|
||||
break;
|
||||
case 'X': /* write N spaces w/o moving cursor */
|
||||
/* XXX VTTEST says this is vt220, vt510 manual says vt100 */
|
||||
case 'X': /* ECH: write N spaces w/o moving cursor */
|
||||
/* XXX VTTEST says this is vt220, vt510 manual
|
||||
* says vt100 */
|
||||
compatibility(ANSIMIN);
|
||||
{
|
||||
int n = def(term->esc_args[0], 1);
|
||||
@ -2705,7 +2708,7 @@ void term_out(Terminal *term)
|
||||
term->seen_disp_event = TRUE;
|
||||
}
|
||||
break;
|
||||
case 'x': /* report terminal characteristics */
|
||||
case 'x': /* DECREQTPARM: report terminal characteristics */
|
||||
compatibility(VT100);
|
||||
if (term->ldisc) {
|
||||
char buf[32];
|
||||
@ -2717,7 +2720,7 @@ void term_out(Terminal *term)
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 'Z': /* BackTab for xterm */
|
||||
case 'Z': /* CBT: BackTab for xterm */
|
||||
compatibility(OTHER);
|
||||
{
|
||||
int i = def(term->esc_args[0], 1);
|
||||
@ -2805,7 +2808,7 @@ void term_out(Terminal *term)
|
||||
(term->curr_attr &
|
||||
(ATTR_FGMASK | ATTR_BGMASK)));
|
||||
break;
|
||||
case ANSI('p', '"'):
|
||||
case ANSI('p', '"'): /* DECSCL: set compat level */
|
||||
/*
|
||||
* Allow the host to make this emulator a
|
||||
* 'perfect' VT102. This first appeared in
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user