static int insert; /* insert-mode flag */
static int cset; /* 0 or 1: which char set */
static int save_cset, save_csattr; /* saved with cursor position */
+static int save_utf; /* saved with cursor position */
static int rvideo; /* global reverse video flag */
static int rvbell_timeout; /* for ESC[?5hESC[?5l vbell */
static int cursor_on; /* cursor enabled flag */
static int blink_is_real; /* Actually blink blinking text */
static int term_echoing; /* Does terminal want local echo? */
static int term_editing; /* Does terminal want local edit? */
+static int sco_acs, save_sco_acs; /* CSI 10,11,12m -> OEM charset */
static int vt52_bold; /* Force bold on non-bold colours */
static int utf_state; /* Is there a pending UTF-8 character */
static int utf_char; /* and what is it so far. */
/*
* Saved settings on the alternate screen.
*/
-static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset;
+static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset, alt_sco_acs, alt_utf;
static int alt_t, alt_b;
static int alt_which;
if (newline != line) {
delpos234(whichtree, treeindex);
addpos234(whichtree, newline, treeindex);
+ line = newline;
}
return line + 1;
alt_wnext = wrapnext = alt_ins = insert = FALSE;
alt_wrap = wrap = cfg.wrap_mode;
alt_cset = cset = 0;
+ alt_utf = utf = 0;
+ alt_sco_acs = sco_acs = 0;
cset_attr[0] = cset_attr[1] = ATTR_ASCII;
rvideo = 0;
in_vbell = FALSE;
t = cset;
cset = alt_cset;
alt_cset = t;
+ t = utf;
+ utf = alt_utf;
+ alt_utf = t;
+ t = sco_acs;
+ sco_acs = alt_sco_acs;
+ alt_sco_acs = t;
fix_cpos;
}
savecurs = curs;
save_attr = curr_attr;
save_cset = cset;
+ save_utf = utf;
save_csattr = cset_attr[cset];
+ save_sco_acs = sco_acs;
} else {
curs = savecurs;
/* Make sure the window hasn't shrunk since the save */
curr_attr = save_attr;
cset = save_cset;
+ utf = save_utf;
cset_attr[cset] = save_csattr;
+ sco_acs = save_sco_acs;
fix_cpos;
if (use_bce)
- erase_char = (' ' | (curr_attr & (ATTR_FGMASK | ATTR_BGMASK)));
+ erase_char = (' ' | ATTR_ASCII |
+ (curr_attr & (ATTR_FGMASK | ATTR_BGMASK)));
}
}
}
if (!to_end) {
end = curs;
+ incpos(end);
}
check_selection(start, end);
ldata = lineptr(start.y);
while (poslt(start, end)) {
- if (start.y == cols && !erase_lattr)
+ if (start.x == cols && !erase_lattr)
ldata[start.x] &= ~LATTR_WRAPPED;
else
ldata[start.x] = erase_char;
/* First see about all those translations. */
if (termstate == TOPLEVEL) {
- if (utf)
+ if (in_utf)
switch (utf_state) {
case 0:
if (c < 0x80) {
- /* I know; gotos are evil. This one is really bad!
- * But before you try removing it follow the path of the
- * sequence "0x5F 0xC0 0x71" with UTF and VTGraphics on.
- */
- /*
- if (cfg.no_vt_graph_with_utf8) break;
- */
- goto evil_jump;
+ /* UTF-8 must be stateless so we ignore iso2022. */
+ if (unitab_ctrl[c] != 0xFF)
+ c = unitab_ctrl[c];
+ else c = ((unsigned char)c) | ATTR_ASCII;
+ break;
} else if ((c & 0xe0) == 0xc0) {
utf_size = utf_state = 1;
utf_char = (c & 0x1f);
if (c >= 0x10000)
c = 0xFFFD;
break;
+ }
+ /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
+ else if(sco_acs &&
+ (c!='\033' && c!='\n' && c!='\r' && c!='\b'))
+ {
+ if (sco_acs == 2) c ^= 0x80;
+ c |= ATTR_SCOACS;
} else {
- evil_jump:;
switch (cset_attr[cset]) {
/*
* Linedraw characters are different from 'ESC ( B'
else
c = ((unsigned char) c) | ATTR_ASCII;
break;
+ case ATTR_SCOACS:
+ if (c>=' ') c = ((unsigned char)c) | ATTR_SCOACS;
+ break;
}
}
}
compatibility(VT100);
cset_attr[0] = ATTR_LINEDRW;
break;
+ case ANSI('U', '('):
+ compatibility(OTHER);
+ cset_attr[0] = ATTR_SCOACS;
+ break;
case ANSI('A', ')'):
compatibility(VT100);
compatibility(VT100);
cset_attr[1] = ATTR_LINEDRW;
break;
+ case ANSI('U', ')'):
+ compatibility(OTHER);
+ cset_attr[1] = ATTR_SCOACS;
+ break;
case ANSI('8', '%'): /* Old Linux code */
case ANSI('G', '%'):
break;
case ANSI('@', '%'):
compatibility(OTHER);
- if (line_codepage != CP_UTF8)
- utf = 0;
+ utf = 0;
break;
}
break;
break;
case 'e': /* move down N lines */
compatibility(ANSI);
+ /* FALLTHROUGH */
case 'B':
move(curs.x, curs.y + def(esc_args[0], 1), 1);
seen_disp_event = TRUE;
break;
- case 'a': /* move right N cols */
- compatibility(ANSI);
case ANSI('c', '>'): /* report xterm version */
compatibility(OTHER);
/* this reports xterm version 136 so that VIM can
use the drag messages from the mouse reporting */
ldisc_send("\033[>0;136;0c", 11);
break;
+ case 'a': /* move right N cols */
+ compatibility(ANSI);
+ /* FALLTHROUGH */
case 'C':
move(curs.x + def(esc_args[0], 1), curs.y, 1);
seen_disp_event = TRUE;
case 7: /* enable reverse video */
curr_attr |= ATTR_REVERSE;
break;
+ case 10: /* SCO acs off */
+ compatibility(SCOANSI);
+ sco_acs = 0; break;
+ case 11: /* SCO acs on */
+ compatibility(SCOANSI);
+ sco_acs = 1; break;
+ case 12: /* SCO acs on flipped */
+ compatibility(SCOANSI);
+ sco_acs = 2; break;
case 22: /* disable bold */
compatibility2(OTHER, VT220);
curr_attr &= ~ATTR_BOLD;
}
}
if (use_bce)
- erase_char =
- (' ' |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK |
- ATTR_BLINK)));
+ erase_char = (' ' | ATTR_ASCII |
+ (curr_attr &
+ (ATTR_FGMASK | ATTR_BGMASK)));
}
break;
case 's': /* save cursor */
}
}
break;
+ case 'Z': /* BackTab for xterm */
+ compatibility(OTHER);
+ {
+ int i = def(esc_args[0], 1);
+ pos old_curs = curs;
+
+ for(;i>0 && curs.x>0; i--) {
+ do {
+ curs.x--;
+ } while (curs.x >0 && !tabs[curs.x]);
+ }
+ fix_cpos;
+ check_selection(old_curs, curs);
+ }
+ break;
case ANSI('L', '='):
compatibility(OTHER);
use_bce = (esc_args[0] <= 0);
erase_char = ERASE_CHAR;
if (use_bce)
- erase_char =
- (' ' |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ erase_char = (' ' | ATTR_ASCII |
+ (curr_attr &
+ (ATTR_FGMASK | ATTR_BGMASK)));
break;
case ANSI('E', '='):
compatibility(OTHER);
vt52_bold = FALSE;
curr_attr = ATTR_DEFAULT;
if (use_bce)
- erase_char = (' ' |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK |
- ATTR_BLINK)));
+ erase_char = (' ' | ATTR_ASCII |
+ (curr_attr &
+ (ATTR_FGMASK | ATTR_BGMASK)));
break;
case 'S':
/* compatibility(VI50) */
curr_attr |= ATTR_BOLD;
if (use_bce)
- erase_char = (' ' |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK |
- ATTR_BLINK)));
+ erase_char = (' ' | ATTR_ASCII |
+ (curr_attr & (ATTR_FGMASK | ATTR_BGMASK)));
break;
case VT52_BG:
termstate = TOPLEVEL;
curr_attr |= ATTR_BLINK;
if (use_bce)
- erase_char = (' ' |
- (curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK |
- ATTR_BLINK)));
+ erase_char = (' ' | ATTR_ASCII |
+ (curr_attr & (ATTR_FGMASK | ATTR_BGMASK)));
break;
#endif
default: break; /* placate gcc warning about enum use */
case ATTR_LINEDRW:
tchar = unitab_xterm[tchar & 0xFF];
break;
+ case ATTR_SCOACS:
+ tchar = unitab_scoacs[tchar&0xFF];
+ break;
}
tattr |= (tchar & CSET_MASK);
tchar &= CHAR_MASK;
case ATTR_ASCII:
uc = unitab_line[uc & 0xFF];
break;
+ case ATTR_SCOACS:
+ uc = unitab_scoacs[uc&0xFF];
+ break;
}
switch (uc & CSET_MASK) {
case ATTR_ACP:
case ATTR_ASCII:
uc = unitab_line[uc & 0xFF];
break;
+ case ATTR_SCOACS:
+ uc = unitab_scoacs[uc&0xFF];
+ break;
}
switch (uc & CSET_MASK) {
case ATTR_ACP:
/*
* from_backend(), to get data from the backend for the terminal.
*/
-void from_backend(int is_stderr, char *data, int len)
+int from_backend(int is_stderr, char *data, int len)
{
while (len--) {
if (inbuf_head >= INBUF_SIZE)
term_out();
inbuf[inbuf_head++] = *data++;
}
+
+ /*
+ * We process all stdout/stderr data immediately we receive it,
+ * and don't return until it's all gone. Therefore, there's no
+ * reason at all to return anything other than zero from this
+ * function.
+ *
+ * This is a slightly suboptimal way to deal with SSH2 - in
+ * principle, the window mechanism would allow us to continue
+ * to accept data on forwarded ports and X connections even
+ * while the terminal processing was going slowly - but we
+ * can't do the 100% right thing without moving the terminal
+ * processing into a separate thread, and that might hurt
+ * portability. So we manage stdout buffering the old SSH1 way:
+ * if the terminal processing goes slowly, the whole SSH
+ * connection stops accepting data until it's ready.
+ *
+ * In practice, I can't imagine this causing serious trouble.
+ */
+ return 0;
}
/*