10 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
11 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
12 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
13 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
15 /* Product-order comparisons for rectangular block selection. */
16 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
17 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
19 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
20 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
24 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
25 #define CL_VT100 0x0002 /* VT100 */
26 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
27 #define CL_VT102 0x0008 /* VT102 */
28 #define CL_VT220 0x0010 /* VT220 */
29 #define CL_VT320 0x0020 /* VT320 */
30 #define CL_VT420 0x0040 /* VT420 */
31 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
32 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
33 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
34 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
35 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
37 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
38 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
39 #define TM_VT102 (TM_VT100AVO|CL_VT102)
40 #define TM_VT220 (TM_VT102|CL_VT220)
41 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
42 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
44 #define TM_PUTTY (0xFFFF)
46 #define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
47 #define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
48 #define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
49 #define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
51 #define compatibility(x) \
52 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
53 term->termstate=TOPLEVEL; \
56 #define compatibility2(x,y) \
57 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
58 term->termstate=TOPLEVEL; \
62 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
64 const char sco2ansicolour
[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
66 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
67 const wchar_t sel_nl
[] = SEL_NL
;
70 * Fetch the character at a particular position in a line array,
71 * for purposes of `wordtype'. The reason this isn't just a simple
72 * array reference is that if the character we find is UCSWIDE,
73 * then we must look one space further to the left.
75 #define UCSGET(a, x) \
76 ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
79 * Detect the various aliases of U+0020 SPACE.
81 #define IS_SPACE_CHR(chr) \
82 ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
87 #define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
90 * Internal prototypes.
92 static void resizeline(Terminal
*, termline
*, int);
93 static termline
*lineptr(Terminal
*, int, int, int);
94 static void unlineptr(termline
*);
95 static void do_paint(Terminal
*, Context
, int);
96 static void erase_lots(Terminal
*, int, int, int);
97 static void swap_screen(Terminal
*, int, int, int);
98 static void update_sbar(Terminal
*);
99 static void deselect(Terminal
*);
100 static void term_print_finish(Terminal
*);
101 #ifdef OPTIMISE_SCROLL
102 static void scroll_display(Terminal
*, int, int, int);
103 #endif /* OPTIMISE_SCROLL */
105 static termline
*newline(Terminal
*term
, int cols
, int bce
)
110 line
= snew(termline
);
111 line
->chars
= snewn(cols
, termchar
);
112 for (j
= 0; j
< cols
; j
++)
113 line
->chars
[j
] = (bce ? term
->erase_char
: term
->basic_erase_char
);
114 line
->cols
= line
->size
= cols
;
115 line
->lattr
= LATTR_NORM
;
116 line
->temporary
= FALSE
;
122 static void freeline(termline
*line
)
130 static void unlineptr(termline
*line
)
137 * Diagnostic function: verify that a termline has a correct
138 * combining character structure.
140 * XXX-REMOVE-BEFORE-RELEASE: This is a performance-intensive
141 * check. Although it's currently really useful for getting all the
142 * bugs out of the new cc stuff, it will want to be absent when we
143 * make a proper release.
145 static void cc_check(termline
*line
)
147 unsigned char *flags
;
150 assert(line
->size
>= line
->cols
);
152 flags
= snewn(line
->size
, unsigned char);
154 for (i
= 0; i
< line
->size
; i
++)
155 flags
[i
] = (i
< line
->cols
);
157 for (i
= 0; i
< line
->cols
; i
++) {
159 while (line
->chars
[j
].cc_next
) {
160 j
+= line
->chars
[j
].cc_next
;
161 assert(j
>= line
->cols
&& j
< line
->size
);
170 assert(j
>= line
->cols
&& j
< line
->size
);
173 if (line
->chars
[j
].cc_next
)
174 j
+= line
->chars
[j
].cc_next
;
181 for (i
= 0; i
< line
->size
; i
++)
182 j
+= (flags
[i
] != 0);
184 assert(j
== line
->size
);
190 * Add a combining character to a character cell.
192 static void add_cc(termline
*line
, int col
, unsigned long chr
)
196 assert(col
>= 0 && col
< line
->cols
);
199 * Start by extending the cols array if the free list is empty.
201 if (!line
->cc_free
) {
203 line
->size
+= 16 + (line
->size
- line
->cols
) / 2;
204 line
->chars
= sresize(line
->chars
, line
->size
, termchar
);
206 while (n
< line
->size
) {
207 if (n
+1 < line
->size
)
208 line
->chars
[n
].cc_next
= 1;
210 line
->chars
[n
].cc_next
= 0;
216 * Now walk the cc list of the cell in question.
218 while (line
->chars
[col
].cc_next
)
219 col
+= line
->chars
[col
].cc_next
;
222 * `col' now points at the last cc currently in this cell; so
223 * we simply add another one.
225 newcc
= line
->cc_free
;
226 if (line
->chars
[newcc
].cc_next
)
227 line
->cc_free
= newcc
+ line
->chars
[newcc
].cc_next
;
230 line
->chars
[newcc
].cc_next
= 0;
231 line
->chars
[newcc
].chr
= chr
;
232 line
->chars
[col
].cc_next
= newcc
- col
;
234 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
238 * Clear the combining character list in a character cell.
240 static void clear_cc(termline
*line
, int col
)
242 int oldfree
, origcol
= col
;
244 assert(col
>= 0 && col
< line
->cols
);
246 if (!line
->chars
[col
].cc_next
)
247 return; /* nothing needs doing */
249 oldfree
= line
->cc_free
;
250 line
->cc_free
= col
+ line
->chars
[col
].cc_next
;
251 while (line
->chars
[col
].cc_next
)
252 col
+= line
->chars
[col
].cc_next
;
254 line
->chars
[col
].cc_next
= oldfree
- col
;
256 line
->chars
[col
].cc_next
= 0;
258 line
->chars
[origcol
].cc_next
= 0;
260 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
264 * Compare two character cells for equality. Special case required
265 * in do_paint() where we override what we expect the chr and attr
268 static int termchars_equal_override(termchar
*a
, termchar
*b
,
269 unsigned long bchr
, unsigned long battr
)
274 if ((a
->attr
&~ DATTR_MASK
) != (battr
&~ DATTR_MASK
))
276 while (a
->cc_next
|| b
->cc_next
) {
277 if (!a
->cc_next
|| !b
->cc_next
)
278 return FALSE
; /* one cc-list ends, other does not */
281 if (a
->chr
!= b
->chr
)
287 static int termchars_equal(termchar
*a
, termchar
*b
)
289 return termchars_equal_override(a
, b
, b
->chr
, b
->attr
);
293 * Copy a character cell. (Requires a pointer to the destination
294 * termline, so as to access its free list.)
296 static void copy_termchar(termline
*destline
, int x
, termchar
*src
)
298 clear_cc(destline
, x
);
300 destline
->chars
[x
] = *src
; /* copy everything except cc-list */
301 destline
->chars
[x
].cc_next
= 0; /* and make sure this is zero */
303 while (src
->cc_next
) {
305 add_cc(destline
, x
, src
->chr
);
308 cc_check(destline
); /* XXX-REMOVE-BEFORE-RELEASE */
312 * Move a character cell within its termline.
314 static void move_termchar(termline
*line
, termchar
*dest
, termchar
*src
)
316 /* First clear the cc list from the original char, just in case. */
317 clear_cc(line
, dest
- line
->chars
);
319 /* Move the character cell and adjust its cc_next. */
320 *dest
= *src
; /* copy everything except cc-list */
322 dest
->cc_next
= src
->cc_next
- (dest
-src
);
324 /* Ensure the original cell doesn't have a cc list. */
327 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
331 * Compress and decompress a termline into an RLE-based format for
332 * storing in scrollback. (Since scrollback almost never needs to
333 * be modified and exists in huge quantities, this is a sensible
334 * tradeoff, particularly since it allows us to continue adding
335 * features to the main termchar structure without proportionally
336 * bloating the terminal emulator's memory footprint unless those
337 * features are in constant use.)
343 static void add(struct buf
*b
, unsigned char c
)
345 if (b
->len
>= b
->size
) {
346 b
->size
= (b
->len
* 3 / 2) + 512;
347 b
->data
= sresize(b
->data
, b
->size
, unsigned char);
349 b
->data
[b
->len
++] = c
;
351 static int get(struct buf
*b
)
353 return b
->data
[b
->len
++];
355 static void makerle(struct buf
*b
, termline
*ldata
,
356 void (*makeliteral
)(struct buf
*b
, termchar
*c
,
357 unsigned long *state
))
359 int hdrpos
, hdrsize
, n
, prevlen
, prevpos
, thislen
, thispos
, prev2
;
360 termchar
*c
= ldata
->chars
;
361 unsigned long state
= 0, oldstate
;
368 prevlen
= prevpos
= 0;
373 makeliteral(b
, c
++, &state
);
374 thislen
= b
->len
- thispos
;
375 if (thislen
== prevlen
&&
376 !memcmp(b
->data
+ prevpos
, b
->data
+ thispos
, thislen
)) {
378 * This literal precisely matches the previous one.
379 * Turn it into a run if it's worthwhile.
381 * With one-byte literals, it costs us two bytes to
382 * encode a run, plus another byte to write the header
383 * to resume normal output; so a three-element run is
384 * neutral, and anything beyond that is unconditionally
385 * worthwhile. With two-byte literals or more, even a
388 if (thislen
> 1 || prev2
) {
392 * It's worth encoding a run. Start at prevpos,
393 * unless hdrsize==0 in which case we can back up
394 * another one and start by overwriting hdrpos.
397 hdrsize
--; /* remove the literal at prevpos */
401 prevpos
-= prevlen
;/* and possibly another one */
405 assert(prevpos
== hdrpos
+ 1);
407 b
->len
= prevpos
+prevlen
;
409 memmove(b
->data
+ prevpos
+1, b
->data
+ prevpos
, prevlen
);
411 b
->len
= prevpos
+prevlen
+1;
413 * Terminate the previous run of ordinary
416 assert(hdrsize
>= 1 && hdrsize
<= 128);
417 b
->data
[hdrpos
] = hdrsize
- 1;
420 runlen
= prev2 ?
3 : 2;
422 while (n
> 0 && runlen
< 129) {
426 makeliteral(b
, c
, &state
);
427 tmplen
= b
->len
- tmppos
;
429 if (tmplen
!= thislen
||
430 memcmp(b
->data
+ runpos
+1, b
->data
+ tmppos
, tmplen
)) {
432 break; /* run over */
437 assert(runlen
>= 2 && runlen
<= 129);
438 b
->data
[runpos
] = runlen
+ 0x80 - 2;
443 /* And ensure this run doesn't interfere with the next. */
444 prevlen
= prevpos
= 0;
450 * Just flag that the previous two literals were
451 * identical, in case we find a third identical one
452 * we want to turn into a run.
465 * This character isn't (yet) part of a run. Add it to
469 if (hdrsize
== 128) {
470 b
->data
[hdrpos
] = hdrsize
- 1;
474 prevlen
= prevpos
= 0;
483 assert(hdrsize
<= 128);
484 b
->data
[hdrpos
] = hdrsize
- 1;
489 static void makeliteral_chr(struct buf
*b
, termchar
*c
, unsigned long *state
)
492 * My encoding for characters is UTF-8-like, in that it stores
493 * 7-bit ASCII in one byte and uses high-bit-set bytes as
494 * introducers to indicate a longer sequence. However, it's
495 * unlike UTF-8 in that it doesn't need to be able to
496 * resynchronise, and therefore I don't want to waste two bits
497 * per byte on having recognisable continuation characters.
498 * Also I don't want to rule out the possibility that I may one
499 * day use values 0x80000000-0xFFFFFFFF for interesting
500 * purposes, so unlike UTF-8 I need a full 32-bit range.
501 * Accordingly, here is my encoding:
503 * 00000000-0000007F: 0xxxxxxx (but see below)
504 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
505 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
506 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
507 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
509 * (`Z' is like `x' but is always going to be zero since the
510 * values I'm encoding don't go above 2^32. In principle the
511 * five-byte form of the encoding could extend to 2^35, and
512 * there could be six-, seven-, eight- and nine-byte forms as
513 * well to allow up to 64-bit values to be encoded. But that's
514 * completely unnecessary for these purposes!)
516 * The encoding as written above would be very simple, except
517 * that 7-bit ASCII can occur in several different ways in the
518 * terminal data; sometimes it crops up in the D800 page
519 * (CSET_ASCII) but at other times it's in the 0000 page (real
520 * Unicode). Therefore, this encoding is actually _stateful_:
521 * the one-byte encoding of 00-7F actually indicates `reuse the
522 * upper three bytes of the last character', and to encode an
523 * absolute value of 00-7F you need to use the two-byte form
526 if ((c
->chr
& ~0x7F) == *state
) {
527 add(b
, (unsigned char)(c
->chr
& 0x7F));
528 } else if (c
->chr
< 0x4000) {
529 add(b
, (unsigned char)(((c
->chr
>> 8) & 0x3F) | 0x80));
530 add(b
, (unsigned char)(c
->chr
& 0xFF));
531 } else if (c
->chr
< 0x200000) {
532 add(b
, (unsigned char)(((c
->chr
>> 16) & 0x1F) | 0xC0));
533 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
534 add(b
, (unsigned char)(c
->chr
& 0xFF));
535 } else if (c
->chr
< 0x10000000) {
536 add(b
, (unsigned char)(((c
->chr
>> 24) & 0x0F) | 0xE0));
537 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
538 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
539 add(b
, (unsigned char)(c
->chr
& 0xFF));
542 add(b
, (unsigned char)((c
->chr
>> 24) & 0xFF));
543 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
544 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
545 add(b
, (unsigned char)(c
->chr
& 0xFF));
547 *state
= c
->chr
& ~0xFF;
549 static void makeliteral_attr(struct buf
*b
, termchar
*c
, unsigned long *state
)
552 * My encoding for attributes is 16-bit-granular and assumes
553 * that the top bit of the word is never required. I either
554 * store a two-byte value with the top bit clear (indicating
555 * just that value), or a four-byte value with the top bit set
556 * (indicating the same value with its top bit clear).
558 * However, first I permute the bits of the attribute value, so
559 * that the eight bits of colour (four in each of fg and bg)
560 * which are never non-zero unless xterm 256-colour mode is in
561 * use are placed higher up the word than everything else. This
562 * ensures that attribute values remain 16-bit _unless_ the
563 * user uses extended colour.
565 unsigned attr
, colourbits
;
569 assert(ATTR_BGSHIFT
> ATTR_FGSHIFT
);
571 colourbits
= (attr
>> (ATTR_BGSHIFT
+ 4)) & 0xF;
573 colourbits
|= (attr
>> (ATTR_FGSHIFT
+ 4)) & 0xF;
575 attr
= (((attr
>> (ATTR_BGSHIFT
+ 8)) << (ATTR_BGSHIFT
+ 4)) |
576 (attr
& ((1 << (ATTR_BGSHIFT
+ 4))-1)));
577 attr
= (((attr
>> (ATTR_FGSHIFT
+ 8)) << (ATTR_FGSHIFT
+ 4)) |
578 (attr
& ((1 << (ATTR_FGSHIFT
+ 4))-1)));
580 attr
|= (colourbits
<< (32-9));
583 add(b
, (unsigned char)((attr
>> 8) & 0xFF));
584 add(b
, (unsigned char)(attr
& 0xFF));
586 add(b
, (unsigned char)(((attr
>> 24) & 0x7F) | 0x80));
587 add(b
, (unsigned char)((attr
>> 16) & 0xFF));
588 add(b
, (unsigned char)((attr
>> 8) & 0xFF));
589 add(b
, (unsigned char)(attr
& 0xFF));
592 static void makeliteral_cc(struct buf
*b
, termchar
*c
, unsigned long *state
)
595 * For combining characters, I just encode a bunch of ordinary
596 * chars using makeliteral_chr, and terminate with a \0
597 * character (which I know won't come up as a combining char
600 * I don't use the stateful encoding in makeliteral_chr.
602 unsigned long zstate
;
611 makeliteral_chr(b
, c
, &zstate
);
616 makeliteral_chr(b
, &z
, &zstate
);
619 static termline
*decompressline(unsigned char *data
, int *bytes_used
);
621 static unsigned char *compressline(termline
*ldata
)
623 struct buf buffer
= { NULL
, 0, 0 }, *b
= &buffer
;
626 * First, store the column count, 7 bits at a time, least
627 * significant `digit' first, with the high bit set on all but
633 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
636 add(b
, (unsigned char)(n
));
640 * Next store the lattrs; same principle.
643 int n
= ldata
->lattr
;
645 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
648 add(b
, (unsigned char)(n
));
652 * Now we store a sequence of separate run-length encoded
653 * fragments, each containing exactly as many symbols as there
654 * are columns in the ldata.
656 * All of these have a common basic format:
658 * - a byte 00-7F indicates that X+1 literals follow it
659 * - a byte 80-FF indicates that a single literal follows it
660 * and expects to be repeated (X-0x80)+2 times.
662 * The format of the `literals' varies between the fragments.
664 makerle(b
, ldata
, makeliteral_chr
);
665 makerle(b
, ldata
, makeliteral_attr
);
666 makerle(b
, ldata
, makeliteral_cc
);
669 * Diagnostics: ensure that the compressed data really does
670 * decompress to the right thing.
672 * XXX-REMOVE-BEFORE-RELEASE: This is a bit performance-heavy
673 * to be leaving in production code.
675 #ifndef CHECK_SB_COMPRESSION
681 #ifdef DIAGNOSTIC_SB_COMPRESSION
682 for (i
= 0; i
< b
->len
; i
++) {
683 printf(" %02x ", b
->data
[i
]);
688 dcl
= decompressline(b
->data
, &dused
);
689 assert(b
->len
== dused
);
690 assert(ldata
->cols
== dcl
->cols
);
691 assert(ldata
->lattr
== dcl
->lattr
);
692 for (i
= 0; i
< ldata
->cols
; i
++)
693 assert(termchars_equal(&ldata
->chars
[i
], &dcl
->chars
[i
]));
695 #ifdef DIAGNOSTIC_SB_COMPRESSION
696 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
697 ldata
->cols
, 4 * ldata
->cols
, dused
,
698 (double)dused
/ (4 * ldata
->cols
));
706 * Trim the allocated memory so we don't waste any, and return.
708 return sresize(b
->data
, b
->len
, unsigned char);
711 static void readrle(struct buf
*b
, termline
*ldata
,
712 void (*readliteral
)(struct buf
*b
, termchar
*c
,
713 termline
*ldata
, unsigned long *state
))
716 unsigned long state
= 0;
718 while (n
< ldata
->cols
) {
724 int pos
= b
->len
, count
= hdr
+ 2 - 0x80;
726 assert(n
< ldata
->cols
);
728 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
732 /* Just a sequence of consecutive literals. */
736 assert(n
< ldata
->cols
);
737 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
743 assert(n
== ldata
->cols
);
745 static void readliteral_chr(struct buf
*b
, termchar
*c
, termline
*ldata
,
746 unsigned long *state
)
751 * 00000000-0000007F: 0xxxxxxx
752 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
753 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
754 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
755 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
760 c
->chr
= byte
| *state
;
761 } else if (byte
< 0xC0) {
762 c
->chr
= (byte
&~ 0xC0) << 8;
764 } else if (byte
< 0xE0) {
765 c
->chr
= (byte
&~ 0xE0) << 16;
766 c
->chr
|= get(b
) << 8;
768 } else if (byte
< 0xF0) {
769 c
->chr
= (byte
&~ 0xF0) << 24;
770 c
->chr
|= get(b
) << 16;
771 c
->chr
|= get(b
) << 8;
774 assert(byte
== 0xF0);
775 c
->chr
= get(b
) << 24;
776 c
->chr
|= get(b
) << 16;
777 c
->chr
|= get(b
) << 8;
780 *state
= c
->chr
& ~0xFF;
782 static void readliteral_attr(struct buf
*b
, termchar
*c
, termline
*ldata
,
783 unsigned long *state
)
785 unsigned val
, attr
, colourbits
;
797 colourbits
= (val
>> (32-9)) & 0xFF;
798 attr
= (val
& ((1<<(32-9))-1));
800 attr
= (((attr
>> (ATTR_FGSHIFT
+ 4)) << (ATTR_FGSHIFT
+ 8)) |
801 (attr
& ((1 << (ATTR_FGSHIFT
+ 4))-1)));
802 attr
= (((attr
>> (ATTR_BGSHIFT
+ 4)) << (ATTR_BGSHIFT
+ 8)) |
803 (attr
& ((1 << (ATTR_BGSHIFT
+ 4))-1)));
805 attr
|= (colourbits
>> 4) << (ATTR_BGSHIFT
+ 4);
806 attr
|= (colourbits
& 0xF) << (ATTR_FGSHIFT
+ 4);
810 static void readliteral_cc(struct buf
*b
, termchar
*c
, termline
*ldata
,
811 unsigned long *state
)
814 unsigned long zstate
;
815 int x
= c
- ldata
->chars
;
821 readliteral_chr(b
, &n
, ldata
, &zstate
);
824 add_cc(ldata
, x
, n
.chr
);
828 static termline
*decompressline(unsigned char *data
, int *bytes_used
)
830 int ncols
, byte
, shift
;
831 struct buf buffer
, *b
= &buffer
;
838 * First read in the column count.
843 ncols
|= (byte
& 0x7F) << shift
;
845 } while (byte
& 0x80);
848 * Now create the output termline.
850 ldata
= snew(termline
);
851 ldata
->chars
= snewn(ncols
, termchar
);
852 ldata
->cols
= ldata
->size
= ncols
;
853 ldata
->temporary
= TRUE
;
857 * We must set all the cc pointers in ldata->chars to 0 right
858 * now, so that cc diagnostics that verify the integrity of the
859 * whole line will make sense while we're in the middle of
864 for (i
= 0; i
< ldata
->cols
; i
++)
865 ldata
->chars
[i
].cc_next
= 0;
869 * Now read in the lattr.
871 ldata
->lattr
= shift
= 0;
874 ldata
->lattr
|= (byte
& 0x7F) << shift
;
876 } while (byte
& 0x80);
879 * Now we read in each of the RLE streams in turn.
881 readrle(b
, ldata
, readliteral_chr
);
882 readrle(b
, ldata
, readliteral_attr
);
883 readrle(b
, ldata
, readliteral_cc
);
885 /* Return the number of bytes read, for diagnostic purposes. */
887 *bytes_used
= b
->len
;
893 * Resize a line to make it `cols' columns wide.
895 static void resizeline(Terminal
*term
, termline
*line
, int cols
)
899 if (line
->cols
!= cols
) {
901 oldcols
= line
->cols
;
904 * This line is the wrong length, which probably means it
905 * hasn't been accessed since a resize. Resize it now.
907 * First, go through all the characters that will be thrown
908 * out in the resize (if we're shrinking the line) and
909 * return their cc lists to the cc free list.
911 for (i
= cols
; i
< oldcols
; i
++)
915 * If we're shrinking the line, we now bodily move the
916 * entire cc section from where it started to where it now
917 * needs to be. (We have to do this before the resize, so
918 * that the data we're copying is still there. However, if
919 * we're expanding, we have to wait until _after_ the
920 * resize so that the space we're copying into is there.)
923 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
924 (line
->size
- line
->cols
) * TSIZE
);
927 * Now do the actual resize, leaving the _same_ amount of
928 * cc space as there was to begin with.
930 line
->size
+= cols
- oldcols
;
931 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
935 * If we're expanding the line, _now_ we move the cc
939 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
940 (line
->size
- line
->cols
) * TSIZE
);
943 * Go through what's left of the original line, and adjust
944 * the first cc_next pointer in each list. (All the
945 * subsequent ones are still valid because they are
946 * relative offsets within the cc block.) Also do the same
947 * to the head of the cc_free list.
949 for (i
= 0; i
< oldcols
&& i
< cols
; i
++)
950 if (line
->chars
[i
].cc_next
)
951 line
->chars
[i
].cc_next
+= cols
- oldcols
;
953 line
->cc_free
+= cols
- oldcols
;
956 * And finally fill in the new space with erase chars. (We
957 * don't have to worry about cc lists here, because we
958 * _know_ the erase char doesn't have one.)
960 for (i
= oldcols
; i
< cols
; i
++)
961 line
->chars
[i
] = term
->basic_erase_char
;
963 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
968 * Get the number of lines in the scrollback.
970 static int sblines(Terminal
*term
)
972 int sblines
= count234(term
->scrollback
);
973 if (term
->cfg
.erase_to_scrollback
&&
974 term
->alt_which
&& term
->alt_screen
) {
975 sblines
+= term
->alt_sblines
;
981 * Retrieve a line of the screen or of the scrollback, according to
982 * whether the y coordinate is non-negative or negative
985 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
992 whichtree
= term
->screen
;
999 if (term
->cfg
.erase_to_scrollback
&&
1000 term
->alt_which
&& term
->alt_screen
) {
1001 altlines
= term
->alt_sblines
;
1003 if (y
< -altlines
) {
1004 whichtree
= term
->scrollback
;
1005 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
1007 whichtree
= term
->alt_screen
;
1008 treeindex
= y
+ term
->alt_sblines
;
1009 /* treeindex = y + count234(term->alt_screen); */
1012 if (whichtree
== term
->scrollback
) {
1013 unsigned char *cline
= index234(whichtree
, treeindex
);
1014 line
= decompressline(cline
, NULL
);
1016 line
= index234(whichtree
, treeindex
);
1019 /* We assume that we don't screw up and retrieve something out of range. */
1021 fatalbox("line==NULL in terminal.c\n"
1022 "lineno=%d y=%d w=%d h=%d\n"
1023 "count(scrollback=%p)=%d\n"
1024 "count(screen=%p)=%d\n"
1025 "count(alt=%p)=%d alt_sblines=%d\n"
1026 "whichtree=%p treeindex=%d\n\n"
1027 "Please contact <putty@projects.tartarus.org> "
1028 "and pass on the above information.",
1029 lineno
, y
, term
->cols
, term
->rows
,
1030 term
->scrollback
, count234(term
->scrollback
),
1031 term
->screen
, count234(term
->screen
),
1032 term
->alt_screen
, count234(term
->alt_screen
), term
->alt_sblines
,
1033 whichtree
, treeindex
);
1035 assert(line
!= NULL
);
1037 resizeline(term
, line
, term
->cols
);
1038 /* FIXME: should we sort the compressed scrollback out here? */
1043 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
1044 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
1046 static void term_schedule_tblink(Terminal
*term
);
1047 static void term_schedule_cblink(Terminal
*term
);
1049 static void term_timer(void *ctx
, long now
)
1051 Terminal
*term
= (Terminal
*)ctx
;
1054 if (term
->tblink_pending
&& now
- term
->next_tblink
>= 0) {
1055 term
->tblinker
= !term
->tblinker
;
1056 term
->tblink_pending
= FALSE
;
1057 term_schedule_tblink(term
);
1061 if (term
->cblink_pending
&& now
- term
->next_cblink
>= 0) {
1062 term
->cblinker
= !term
->cblinker
;
1063 term
->cblink_pending
= FALSE
;
1064 term_schedule_cblink(term
);
1068 if (term
->in_vbell
&& now
- term
->vbell_end
>= 0) {
1069 term
->in_vbell
= FALSE
;
1074 (term
->window_update_pending
&& now
- term
->next_update
>= 0))
1078 static void term_schedule_update(Terminal
*term
)
1080 if (!term
->window_update_pending
) {
1081 term
->window_update_pending
= TRUE
;
1082 term
->next_update
= schedule_timer(UPDATE_DELAY
, term_timer
, term
);
1087 * Call this whenever the terminal window state changes, to queue
1090 static void seen_disp_event(Terminal
*term
)
1092 term
->seen_disp_event
= TRUE
; /* for scrollback-reset-on-activity */
1093 term_schedule_update(term
);
1097 * Call when the terminal's blinking-text settings change, or when
1098 * a text blink has just occurred.
1100 static void term_schedule_tblink(Terminal
*term
)
1102 if (term
->blink_is_real
) {
1103 if (!term
->tblink_pending
)
1104 term
->next_tblink
= schedule_timer(TBLINK_DELAY
, term_timer
, term
);
1105 term
->tblink_pending
= TRUE
;
1107 term
->tblinker
= 1; /* reset when not in use */
1108 term
->tblink_pending
= FALSE
;
1113 * Likewise with cursor blinks.
1115 static void term_schedule_cblink(Terminal
*term
)
1117 if (term
->cfg
.blink_cur
&& term
->has_focus
) {
1118 if (!term
->cblink_pending
)
1119 term
->next_cblink
= schedule_timer(CBLINK_DELAY
, term_timer
, term
);
1120 term
->cblink_pending
= TRUE
;
1122 term
->cblinker
= 1; /* reset when not in use */
1123 term
->cblink_pending
= FALSE
;
1128 * Call to reset cursor blinking on new output.
1130 static void term_reset_cblink(Terminal
*term
)
1132 seen_disp_event(term
);
1134 term
->cblink_pending
= FALSE
;
1135 term_schedule_cblink(term
);
1139 * Call to begin a visual bell.
1141 static void term_schedule_vbell(Terminal
*term
, int already_started
,
1144 long ticks_already_gone
;
1146 if (already_started
)
1147 ticks_already_gone
= GETTICKCOUNT() - startpoint
;
1149 ticks_already_gone
= 0;
1151 if (ticks_already_gone
< VBELL_DELAY
) {
1152 term
->in_vbell
= TRUE
;
1153 term
->vbell_end
= schedule_timer(VBELL_DELAY
- ticks_already_gone
,
1156 term
->in_vbell
= FALSE
;
1161 * Set up power-on settings for the terminal.
1163 static void power_on(Terminal
*term
)
1165 term
->curs
.x
= term
->curs
.y
= 0;
1166 term
->alt_x
= term
->alt_y
= 0;
1167 term
->savecurs
.x
= term
->savecurs
.y
= 0;
1168 term
->alt_t
= term
->marg_t
= 0;
1169 if (term
->rows
!= -1)
1170 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1172 term
->alt_b
= term
->marg_b
= 0;
1173 if (term
->cols
!= -1) {
1175 for (i
= 0; i
< term
->cols
; i
++)
1176 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1178 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1179 term
->alt_ins
= term
->insert
= FALSE
;
1180 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
1181 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1182 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
1183 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
1184 term
->utf_state
= 0;
1185 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
1186 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= CSET_ASCII
;
1188 term
->in_vbell
= FALSE
;
1189 term
->cursor_on
= 1;
1190 term
->big_cursor
= 0;
1191 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
1192 term
->term_editing
= term
->term_echoing
= FALSE
;
1193 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1194 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1195 term
->use_bce
= term
->cfg
.bce
;
1196 term
->blink_is_real
= term
->cfg
.blinktext
;
1197 term
->erase_char
= term
->basic_erase_char
;
1198 term
->alt_which
= 0;
1199 term_print_finish(term
);
1202 for (i
= 0; i
< 256; i
++)
1203 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1206 swap_screen(term
, 1, FALSE
, FALSE
);
1207 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1208 swap_screen(term
, 0, FALSE
, FALSE
);
1209 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1211 term_schedule_tblink(term
);
1212 term_schedule_cblink(term
);
1216 * Force a screen update.
1218 void term_update(Terminal
*term
)
1222 term
->window_update_pending
= FALSE
;
1224 ctx
= get_ctx(term
->frontend
);
1226 int need_sbar_update
= term
->seen_disp_event
;
1227 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1228 term
->disptop
= 0; /* return to main screen */
1229 term
->seen_disp_event
= 0;
1230 need_sbar_update
= TRUE
;
1233 if (need_sbar_update
)
1235 do_paint(term
, ctx
, TRUE
);
1236 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1242 * Called from front end when a keypress occurs, to trigger
1243 * anything magical that needs to happen in that situation.
1245 void term_seen_key_event(Terminal
*term
)
1248 * On any keypress, clear the bell overload mechanism
1249 * completely, on the grounds that large numbers of
1250 * beeps coming from deliberate key action are likely
1251 * to be intended (e.g. beeps from filename completion
1252 * blocking repeatedly).
1254 term
->beep_overloaded
= FALSE
;
1255 while (term
->beephead
) {
1256 struct beeptime
*tmp
= term
->beephead
;
1257 term
->beephead
= tmp
->next
;
1260 term
->beeptail
= NULL
;
1264 * Reset the scrollback on keypress, if we're doing that.
1266 if (term
->cfg
.scroll_on_key
) {
1267 term
->disptop
= 0; /* return to main screen */
1268 seen_disp_event(term
);
1273 * Same as power_on(), but an external function.
1275 void term_pwron(Terminal
*term
)
1278 if (term
->ldisc
) /* cause ldisc to notice changes */
1279 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1285 static void set_erase_char(Terminal
*term
)
1287 term
->erase_char
= term
->basic_erase_char
;
1289 term
->erase_char
.attr
= (term
->curr_attr
&
1290 (ATTR_FGMASK
| ATTR_BGMASK
));
1294 * When the user reconfigures us, we need to check the forbidden-
1295 * alternate-screen config option, disable raw mouse mode if the
1296 * user has disabled mouse reporting, and abandon a print job if
1297 * the user has disabled printing.
1299 void term_reconfig(Terminal
*term
, Config
*cfg
)
1302 * Before adopting the new config, check all those terminal
1303 * settings which control power-on defaults; and if they've
1304 * changed, we will modify the current state as well as the
1305 * default one. The full list is: Auto wrap mode, DEC Origin
1306 * Mode, BCE, blinking text, character classes.
1308 int reset_wrap
, reset_decom
, reset_bce
, reset_tblink
, reset_charclass
;
1311 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1312 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1313 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1314 reset_tblink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1315 reset_charclass
= 0;
1316 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1317 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1318 reset_charclass
= 1;
1321 * If the bidi or shaping settings have changed, flush the bidi
1324 if (term
->cfg
.arabicshaping
!= cfg
->arabicshaping
||
1325 term
->cfg
.bidi
!= cfg
->bidi
) {
1326 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1327 sfree(term
->pre_bidi_cache
[i
].chars
);
1328 sfree(term
->post_bidi_cache
[i
].chars
);
1329 term
->pre_bidi_cache
[i
].width
= -1;
1330 term
->pre_bidi_cache
[i
].chars
= NULL
;
1331 term
->post_bidi_cache
[i
].width
= -1;
1332 term
->post_bidi_cache
[i
].chars
= NULL
;
1336 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1339 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1341 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1343 term
->use_bce
= term
->cfg
.bce
;
1344 set_erase_char(term
);
1347 term
->blink_is_real
= term
->cfg
.blinktext
;
1349 if (reset_charclass
)
1350 for (i
= 0; i
< 256; i
++)
1351 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1353 if (term
->cfg
.no_alt_screen
)
1354 swap_screen(term
, 0, FALSE
, FALSE
);
1355 if (term
->cfg
.no_mouse_rep
) {
1356 term
->xterm_mouse
= 0;
1357 set_raw_mouse_mode(term
->frontend
, 0);
1359 if (term
->cfg
.no_remote_charset
) {
1360 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1361 term
->sco_acs
= term
->alt_sco_acs
= 0;
1364 if (!*term
->cfg
.printer
) {
1365 term_print_finish(term
);
1367 term_schedule_tblink(term
);
1368 term_schedule_cblink(term
);
1372 * Clear the scrollback.
1374 void term_clrsb(Terminal
*term
)
1378 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1379 sfree(line
); /* this is compressed data, not a termline */
1381 term
->tempsblines
= 0;
1382 term
->alt_sblines
= 0;
1387 * Initialise the terminal.
1389 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1395 * Allocate a new Terminal structure and initialise the fields
1398 term
= snew(Terminal
);
1399 term
->frontend
= frontend
;
1400 term
->ucsdata
= ucsdata
;
1401 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1402 term
->logctx
= NULL
;
1403 term
->compatibility_level
= TM_PUTTY
;
1404 strcpy(term
->id_string
, "\033[?6c");
1405 term
->cblink_pending
= term
->tblink_pending
= FALSE
;
1406 term
->paste_buffer
= NULL
;
1407 term
->paste_len
= 0;
1408 term
->last_paste
= 0;
1409 bufchain_init(&term
->inbuf
);
1410 bufchain_init(&term
->printer_buf
);
1411 term
->printing
= term
->only_printing
= FALSE
;
1412 term
->print_job
= NULL
;
1413 term
->vt52_mode
= FALSE
;
1414 term
->cr_lf_return
= FALSE
;
1415 term
->seen_disp_event
= FALSE
;
1416 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1417 term
->reset_132
= FALSE
;
1418 term
->cblinker
= term
->tblinker
= 0;
1419 term
->has_focus
= 1;
1420 term
->repeat_off
= FALSE
;
1421 term
->termstate
= TOPLEVEL
;
1422 term
->selstate
= NO_SELECTION
;
1425 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1426 term
->tempsblines
= 0;
1427 term
->alt_sblines
= 0;
1429 term
->disptext
= NULL
;
1430 term
->dispcursx
= term
->dispcursy
= -1;
1433 term
->rows
= term
->cols
= -1;
1435 term
->beephead
= term
->beeptail
= NULL
;
1436 #ifdef OPTIMISE_SCROLL
1437 term
->scrollhead
= term
->scrolltail
= NULL
;
1438 #endif /* OPTIMISE_SCROLL */
1440 term
->lastbeep
= FALSE
;
1441 term
->beep_overloaded
= FALSE
;
1442 term
->attr_mask
= 0xffffffff;
1443 term
->resize_fn
= NULL
;
1444 term
->resize_ctx
= NULL
;
1445 term
->in_term_out
= FALSE
;
1447 term
->ltemp_size
= 0;
1448 term
->wcFrom
= NULL
;
1450 term
->wcFromTo_size
= 0;
1452 term
->window_update_pending
= FALSE
;
1454 term
->bidi_cache_size
= 0;
1455 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1458 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1459 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1460 term
->basic_erase_char
.cc_next
= 0;
1461 term
->erase_char
= term
->basic_erase_char
;
1466 void term_free(Terminal
*term
)
1469 struct beeptime
*beep
;
1472 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1473 sfree(line
); /* compressed data, not a termline */
1474 freetree234(term
->scrollback
);
1475 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1477 freetree234(term
->screen
);
1478 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1480 freetree234(term
->alt_screen
);
1481 if (term
->disptext
) {
1482 for (i
= 0; i
< term
->rows
; i
++)
1483 freeline(term
->disptext
[i
]);
1485 sfree(term
->disptext
);
1486 while (term
->beephead
) {
1487 beep
= term
->beephead
;
1488 term
->beephead
= beep
->next
;
1491 bufchain_clear(&term
->inbuf
);
1493 printer_finish_job(term
->print_job
);
1494 bufchain_clear(&term
->printer_buf
);
1495 sfree(term
->paste_buffer
);
1497 sfree(term
->wcFrom
);
1500 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1501 sfree(term
->pre_bidi_cache
[i
].chars
);
1502 sfree(term
->post_bidi_cache
[i
].chars
);
1504 sfree(term
->pre_bidi_cache
);
1505 sfree(term
->post_bidi_cache
);
1507 expire_timer_context(term
);
1513 * Set up the terminal for a given size.
1515 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1518 termline
**newdisp
, *line
;
1519 int i
, j
, oldrows
= term
->rows
;
1521 int save_alt_which
= term
->alt_which
;
1523 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1524 newsavelines
== term
->savelines
)
1525 return; /* nothing to do */
1528 swap_screen(term
, 0, FALSE
, FALSE
);
1530 term
->alt_t
= term
->marg_t
= 0;
1531 term
->alt_b
= term
->marg_b
= newrows
- 1;
1533 if (term
->rows
== -1) {
1534 term
->scrollback
= newtree234(NULL
);
1535 term
->screen
= newtree234(NULL
);
1536 term
->tempsblines
= 0;
1541 * Resize the screen and scrollback. We only need to shift
1542 * lines around within our data structures, because lineptr()
1543 * will take care of resizing each individual line if
1546 * - If the new screen is longer, we shunt lines in from temporary
1547 * scrollback if possible, otherwise we add new blank lines at
1550 * - If the new screen is shorter, we remove any blank lines at
1551 * the bottom if possible, otherwise shunt lines above the cursor
1552 * to scrollback if possible, otherwise delete lines below the
1555 * - Then, if the new scrollback length is less than the
1556 * amount of scrollback we actually have, we must throw some
1559 sblen
= count234(term
->scrollback
);
1560 /* Do this loop to expand the screen if newrows > rows */
1561 assert(term
->rows
== count234(term
->screen
));
1562 while (term
->rows
< newrows
) {
1563 if (term
->tempsblines
> 0) {
1564 unsigned char *cline
;
1565 /* Insert a line from the scrollback at the top of the screen. */
1566 assert(sblen
>= term
->tempsblines
);
1567 cline
= delpos234(term
->scrollback
, --sblen
);
1568 line
= decompressline(cline
, NULL
);
1570 line
->temporary
= FALSE
; /* reconstituted line is now real */
1571 term
->tempsblines
-= 1;
1572 addpos234(term
->screen
, line
, 0);
1574 term
->savecurs
.y
+= 1;
1576 /* Add a new blank line at the bottom of the screen. */
1577 line
= newline(term
, newcols
, FALSE
);
1578 addpos234(term
->screen
, line
, count234(term
->screen
));
1582 /* Do this loop to shrink the screen if newrows < rows */
1583 while (term
->rows
> newrows
) {
1584 if (term
->curs
.y
< term
->rows
- 1) {
1585 /* delete bottom row, unless it contains the cursor */
1586 sfree(delpos234(term
->screen
, term
->rows
- 1));
1588 /* push top row to scrollback */
1589 line
= delpos234(term
->screen
, 0);
1590 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1592 term
->tempsblines
+= 1;
1594 term
->savecurs
.y
-= 1;
1598 assert(term
->rows
== newrows
);
1599 assert(count234(term
->screen
) == newrows
);
1601 /* Delete any excess lines from the scrollback. */
1602 while (sblen
> newsavelines
) {
1603 line
= delpos234(term
->scrollback
, 0);
1607 if (sblen
< term
->tempsblines
)
1608 term
->tempsblines
= sblen
;
1609 assert(count234(term
->scrollback
) <= newsavelines
);
1610 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1613 /* Make a new displayed text buffer. */
1614 newdisp
= snewn(newrows
, termline
*);
1615 for (i
= 0; i
< newrows
; i
++) {
1616 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1617 for (j
= 0; j
< newcols
; j
++)
1618 newdisp
[i
]->chars
[j
].attr
= ATTR_INVALID
;
1620 if (term
->disptext
) {
1621 for (i
= 0; i
< oldrows
; i
++)
1622 freeline(term
->disptext
[i
]);
1624 sfree(term
->disptext
);
1625 term
->disptext
= newdisp
;
1626 term
->dispcursx
= term
->dispcursy
= -1;
1628 /* Make a new alternate screen. */
1629 newalt
= newtree234(NULL
);
1630 for (i
= 0; i
< newrows
; i
++) {
1631 line
= newline(term
, newcols
, TRUE
);
1632 addpos234(newalt
, line
, i
);
1634 if (term
->alt_screen
) {
1635 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1637 freetree234(term
->alt_screen
);
1639 term
->alt_screen
= newalt
;
1640 term
->alt_sblines
= 0;
1642 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1645 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1646 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1649 /* Check that the cursor positions are still valid. */
1650 if (term
->savecurs
.y
< 0)
1651 term
->savecurs
.y
= 0;
1652 if (term
->savecurs
.y
>= newrows
)
1653 term
->savecurs
.y
= newrows
- 1;
1654 if (term
->curs
.y
< 0)
1656 if (term
->curs
.y
>= newrows
)
1657 term
->curs
.y
= newrows
- 1;
1658 if (term
->curs
.x
>= newcols
)
1659 term
->curs
.x
= newcols
- 1;
1660 term
->alt_x
= term
->alt_y
= 0;
1661 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1663 term
->rows
= newrows
;
1664 term
->cols
= newcols
;
1665 term
->savelines
= newsavelines
;
1667 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1671 if (term
->resize_fn
)
1672 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1676 * Hand a function and context pointer to the terminal which it can
1677 * use to notify a back end of resizes.
1679 void term_provide_resize_fn(Terminal
*term
,
1680 void (*resize_fn
)(void *, int, int),
1683 term
->resize_fn
= resize_fn
;
1684 term
->resize_ctx
= resize_ctx
;
1685 if (term
->cols
> 0 && term
->rows
> 0)
1686 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1689 /* Find the bottom line on the screen that has any content.
1690 * If only the top line has content, returns 0.
1691 * If no lines have content, return -1.
1693 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1696 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1697 termline
*line
= index234(screen
, i
);
1699 for (j
= 0; j
< line
->cols
; j
++)
1700 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1702 if (j
!= line
->cols
) break;
1708 * Swap screens. If `reset' is TRUE and we have been asked to
1709 * switch to the alternate screen, we must bring most of its
1710 * configuration from the main screen and erase the contents of the
1711 * alternate screen completely. (This is even true if we're already
1712 * on it! Blame xterm.)
1714 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1720 reset
= FALSE
; /* do no weird resetting if which==0 */
1722 if (which
!= term
->alt_which
) {
1723 term
->alt_which
= which
;
1725 ttr
= term
->alt_screen
;
1726 term
->alt_screen
= term
->screen
;
1728 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1730 if (!reset
&& !keep_cur_pos
)
1731 term
->curs
.x
= term
->alt_x
;
1734 if (!reset
&& !keep_cur_pos
)
1735 term
->curs
.y
= term
->alt_y
;
1738 if (!reset
) term
->marg_t
= term
->alt_t
;
1741 if (!reset
) term
->marg_b
= term
->alt_b
;
1744 if (!reset
) term
->dec_om
= term
->alt_om
;
1747 if (!reset
) term
->wrap
= term
->alt_wrap
;
1750 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1751 term
->alt_wnext
= t
;
1753 if (!reset
) term
->insert
= term
->alt_ins
;
1756 if (!reset
) term
->cset
= term
->alt_cset
;
1759 if (!reset
) term
->utf
= term
->alt_utf
;
1762 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1763 term
->alt_sco_acs
= t
;
1766 if (reset
&& term
->screen
) {
1768 * Yes, this _is_ supposed to honour background-colour-erase.
1770 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1775 * Update the scroll bar.
1777 static void update_sbar(Terminal
*term
)
1779 int nscroll
= sblines(term
);
1780 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1781 nscroll
+ term
->disptop
, term
->rows
);
1785 * Check whether the region bounded by the two pointers intersects
1786 * the scroll region, and de-select the on-screen selection if so.
1788 static void check_selection(Terminal
*term
, pos from
, pos to
)
1790 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1795 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1796 * for backward.) `sb' is TRUE if the scrolling is permitted to
1797 * affect the scrollback buffer.
1799 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1802 int i
, seltop
, olddisptop
, shift
;
1804 if (topline
!= 0 || term
->alt_which
!= 0)
1807 olddisptop
= term
->disptop
;
1811 line
= delpos234(term
->screen
, botline
);
1812 resizeline(term
, line
, term
->cols
);
1813 for (i
= 0; i
< term
->cols
; i
++)
1814 copy_termchar(line
, i
, &term
->erase_char
);
1815 line
->lattr
= LATTR_NORM
;
1816 addpos234(term
->screen
, line
, topline
);
1818 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1820 if (term
->selstart
.y
> botline
) {
1821 term
->selstart
.y
= botline
+ 1;
1822 term
->selstart
.x
= 0;
1825 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1827 if (term
->selend
.y
> botline
) {
1828 term
->selend
.y
= botline
+ 1;
1837 line
= delpos234(term
->screen
, topline
);
1838 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
1839 if (sb
&& term
->savelines
> 0) {
1840 int sblen
= count234(term
->scrollback
);
1842 * We must add this line to the scrollback. We'll
1843 * remove a line from the top of the scrollback if
1844 * the scrollback is full.
1846 if (sblen
== term
->savelines
) {
1847 unsigned char *cline
;
1850 cline
= delpos234(term
->scrollback
, 0);
1853 term
->tempsblines
+= 1;
1855 addpos234(term
->scrollback
, compressline(line
), sblen
);
1857 /* now `line' itself can be reused as the bottom line */
1860 * If the user is currently looking at part of the
1861 * scrollback, and they haven't enabled any options
1862 * that are going to reset the scrollback as a
1863 * result of this movement, then the chances are
1864 * they'd like to keep looking at the same line. So
1865 * we move their viewpoint at the same rate as the
1866 * scroll, at least until their viewpoint hits the
1867 * top end of the scrollback buffer, at which point
1868 * we don't have the choice any more.
1870 * Thanks to Jan Holmen Holsten for the idea and
1871 * initial implementation.
1873 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1876 resizeline(term
, line
, term
->cols
);
1877 for (i
= 0; i
< term
->cols
; i
++)
1878 copy_termchar(line
, i
, &term
->erase_char
);
1879 line
->lattr
= LATTR_NORM
;
1880 addpos234(term
->screen
, line
, botline
);
1883 * If the selection endpoints move into the scrollback,
1884 * we keep them moving until they hit the top. However,
1885 * of course, if the line _hasn't_ moved into the
1886 * scrollback then we don't do this, and cut them off
1887 * at the top of the scroll region.
1889 * This applies to selstart and selend (for an existing
1890 * selection), and also selanchor (for one being
1891 * selected as we speak).
1893 seltop
= sb ?
-term
->savelines
: topline
;
1895 if (term
->selstate
!= NO_SELECTION
) {
1896 if (term
->selstart
.y
>= seltop
&&
1897 term
->selstart
.y
<= botline
) {
1899 if (term
->selstart
.y
< seltop
) {
1900 term
->selstart
.y
= seltop
;
1901 term
->selstart
.x
= 0;
1904 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1906 if (term
->selend
.y
< seltop
) {
1907 term
->selend
.y
= seltop
;
1911 if (term
->selanchor
.y
>= seltop
&&
1912 term
->selanchor
.y
<= botline
) {
1913 term
->selanchor
.y
--;
1914 if (term
->selanchor
.y
< seltop
) {
1915 term
->selanchor
.y
= seltop
;
1916 term
->selanchor
.x
= 0;
1924 #ifdef OPTIMISE_SCROLL
1925 shift
+= term
->disptop
- olddisptop
;
1926 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1927 scroll_display(term
, topline
, botline
, shift
);
1928 #endif /* OPTIMISE_SCROLL */
1931 #ifdef OPTIMISE_SCROLL
1933 * Add a scroll of a region on the screen into the pending scroll list.
1934 * `lines' is +ve for scrolling forward, -ve for backward.
1936 * If the scroll is on the same area as the last scroll in the list,
1939 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
1941 struct scrollregion
*newscroll
;
1942 if (term
->scrolltail
&&
1943 term
->scrolltail
->topline
== topline
&&
1944 term
->scrolltail
->botline
== botline
) {
1945 term
->scrolltail
->lines
+= lines
;
1947 newscroll
= snew(struct scrollregion
);
1948 newscroll
->topline
= topline
;
1949 newscroll
->botline
= botline
;
1950 newscroll
->lines
= lines
;
1951 newscroll
->next
= NULL
;
1953 if (!term
->scrollhead
)
1954 term
->scrollhead
= newscroll
;
1956 term
->scrolltail
->next
= newscroll
;
1957 term
->scrolltail
= newscroll
;
1962 * Scroll the physical display, and our conception of it in disptext.
1964 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
1966 int distance
, nlines
, i
, j
;
1968 distance
= lines
> 0 ? lines
: -lines
;
1969 nlines
= botline
- topline
+ 1 - distance
;
1971 for (i
= 0; i
< nlines
; i
++)
1972 for (j
= 0; j
< term
->cols
; j
++)
1973 copy_termchar(term
->disptext
[i
], j
,
1974 term
->disptext
[i
+distance
]->chars
+j
);
1975 if (term
->dispcursy
>= 0 &&
1976 term
->dispcursy
>= topline
+ distance
&&
1977 term
->dispcursy
< topline
+ distance
+ nlines
)
1978 term
->dispcursy
-= distance
;
1979 for (i
= 0; i
< distance
; i
++)
1980 for (j
= 0; j
< term
->cols
; j
++)
1981 term
->disptext
[nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1983 for (i
= nlines
; i
-- ;)
1984 for (j
= 0; j
< term
->cols
; j
++)
1985 copy_termchar(term
->disptext
[i
+distance
], j
,
1986 term
->disptext
[i
]->chars
+j
);
1987 if (term
->dispcursy
>= 0 &&
1988 term
->dispcursy
>= topline
&&
1989 term
->dispcursy
< topline
+ nlines
)
1990 term
->dispcursy
+= distance
;
1991 for (i
= 0; i
< distance
; i
++)
1992 for (j
= 0; j
< term
->cols
; j
++)
1993 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
1995 save_scroll(term
, topline
, botline
, lines
);
1997 #endif /* OPTIMISE_SCROLL */
2000 * Move the cursor to a given position, clipping at boundaries. We
2001 * may or may not want to clip at the scroll margin: marg_clip is 0
2002 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
2003 * even _being_ outside the margins.
2005 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
2009 if (x
>= term
->cols
)
2012 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
2015 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
2021 if (y
>= term
->rows
)
2025 term
->wrapnext
= FALSE
;
2029 * Save or restore the cursor and SGR mode.
2031 static void save_cursor(Terminal
*term
, int save
)
2034 term
->savecurs
= term
->curs
;
2035 term
->save_attr
= term
->curr_attr
;
2036 term
->save_cset
= term
->cset
;
2037 term
->save_utf
= term
->utf
;
2038 term
->save_wnext
= term
->wrapnext
;
2039 term
->save_csattr
= term
->cset_attr
[term
->cset
];
2040 term
->save_sco_acs
= term
->sco_acs
;
2042 term
->curs
= term
->savecurs
;
2043 /* Make sure the window hasn't shrunk since the save */
2044 if (term
->curs
.x
>= term
->cols
)
2045 term
->curs
.x
= term
->cols
- 1;
2046 if (term
->curs
.y
>= term
->rows
)
2047 term
->curs
.y
= term
->rows
- 1;
2049 term
->curr_attr
= term
->save_attr
;
2050 term
->cset
= term
->save_cset
;
2051 term
->utf
= term
->save_utf
;
2052 term
->wrapnext
= term
->save_wnext
;
2054 * wrapnext might reset to False if the x position is no
2055 * longer at the rightmost edge.
2057 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
2058 term
->wrapnext
= FALSE
;
2059 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
2060 term
->sco_acs
= term
->save_sco_acs
;
2061 set_erase_char(term
);
2066 * This function is called before doing _anything_ which affects
2067 * only part of a line of text. It is used to mark the boundary
2068 * between two character positions, and it indicates that some sort
2069 * of effect is going to happen on only one side of that boundary.
2071 * The effect of this function is to check whether a CJK
2072 * double-width character is straddling the boundary, and to remove
2073 * it and replace it with two spaces if so. (Of course, one or
2074 * other of those spaces is then likely to be replaced with
2075 * something else again, as a result of whatever happens next.)
2077 * Also, if the boundary is at the right-hand _edge_ of the screen,
2078 * it implies something deliberate is being done to the rightmost
2079 * column position; hence we must clear LATTR_WRAPPED2.
2081 * The input to the function is the coordinates of the _second_
2082 * character of the pair.
2084 static void check_boundary(Terminal
*term
, int x
, int y
)
2088 /* Validate input coordinates, just in case. */
2089 if (x
== 0 || x
> term
->cols
)
2092 ldata
= scrlineptr(y
);
2093 if (x
== term
->cols
) {
2094 ldata
->lattr
&= ~LATTR_WRAPPED2
;
2096 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
2097 clear_cc(ldata
, x
-1);
2099 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
2100 ldata
->chars
[x
] = ldata
->chars
[x
-1];
2106 * Erase a large portion of the screen: the whole screen, or the
2107 * whole line, or parts thereof.
2109 static void erase_lots(Terminal
*term
,
2110 int line_only
, int from_begin
, int to_end
)
2114 int erasing_lines_from_top
= 0;
2117 start
.y
= term
->curs
.y
;
2119 end
.y
= term
->curs
.y
+ 1;
2121 erase_lattr
= FALSE
;
2136 if (!from_begin
|| !to_end
)
2137 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2138 check_selection(term
, start
, end
);
2140 /* Clear screen also forces a full window redraw, just in case. */
2141 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
2142 term_invalidate(term
);
2144 /* Lines scrolled away shouldn't be brought back on if the terminal
2146 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
2147 erasing_lines_from_top
= 1;
2149 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
2150 /* If it's a whole number of lines, starting at the top, and
2151 * we're fully erasing them, erase by scrolling and keep the
2152 * lines in the scrollback. */
2153 int scrolllines
= end
.y
;
2154 if (end
.y
== term
->rows
) {
2155 /* Shrink until we find a non-empty row.*/
2156 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
2158 if (scrolllines
> 0)
2159 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
2161 termline
*ldata
= scrlineptr(start
.y
);
2162 while (poslt(start
, end
)) {
2163 if (start
.x
== term
->cols
) {
2165 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
2167 ldata
->lattr
= LATTR_NORM
;
2169 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
2171 if (incpos(start
) && start
.y
< term
->rows
) {
2172 ldata
= scrlineptr(start
.y
);
2177 /* After an erase of lines from the top of the screen, we shouldn't
2178 * bring the lines back again if the terminal enlarges (since the user or
2179 * application has explictly thrown them away). */
2180 if (erasing_lines_from_top
&& !(term
->alt_which
))
2181 term
->tempsblines
= 0;
2185 * Insert or delete characters within the current line. n is +ve if
2186 * insertion is desired, and -ve for deletion.
2188 static void insch(Terminal
*term
, int n
)
2190 int dir
= (n
< 0 ?
-1 : +1);
2195 n
= (n
< 0 ?
-n
: n
);
2196 if (n
> term
->cols
- term
->curs
.x
)
2197 n
= term
->cols
- term
->curs
.x
;
2198 m
= term
->cols
- term
->curs
.x
- n
;
2199 cursplus
.y
= term
->curs
.y
;
2200 cursplus
.x
= term
->curs
.x
+ n
;
2201 check_selection(term
, term
->curs
, cursplus
);
2202 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2204 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2205 ldata
= scrlineptr(term
->curs
.y
);
2207 for (j
= 0; j
< m
; j
++)
2208 move_termchar(ldata
,
2209 ldata
->chars
+ term
->curs
.x
+ j
,
2210 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2212 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2215 move_termchar(ldata
,
2216 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2217 ldata
->chars
+ term
->curs
.x
+ j
);
2219 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2224 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2225 * whether the mode is a DEC private one or a normal one.)
2227 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2231 case 1: /* DECCKM: application cursor keys */
2232 term
->app_cursor_keys
= state
;
2234 case 2: /* DECANM: VT52 mode */
2235 term
->vt52_mode
= !state
;
2236 if (term
->vt52_mode
) {
2237 term
->blink_is_real
= FALSE
;
2238 term
->vt52_bold
= FALSE
;
2240 term
->blink_is_real
= term
->cfg
.blinktext
;
2242 term_schedule_tblink(term
);
2244 case 3: /* DECCOLM: 80/132 columns */
2246 if (!term
->cfg
.no_remote_resize
)
2247 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2248 term
->reset_132
= state
;
2249 term
->alt_t
= term
->marg_t
= 0;
2250 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2251 move(term
, 0, 0, 0);
2252 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2254 case 5: /* DECSCNM: reverse video */
2256 * Toggle reverse video. If we receive an OFF within the
2257 * visual bell timeout period after an ON, we trigger an
2258 * effective visual bell, so that ESC[?5hESC[?5l will
2259 * always be an actually _visible_ visual bell.
2261 if (term
->rvideo
&& !state
) {
2262 /* This is an OFF, so set up a vbell */
2263 term_schedule_vbell(term
, TRUE
, term
->rvbell_startpoint
);
2264 } else if (!term
->rvideo
&& state
) {
2265 /* This is an ON, so we notice the time and save it. */
2266 term
->rvbell_startpoint
= GETTICKCOUNT();
2268 term
->rvideo
= state
;
2269 seen_disp_event(term
);
2271 case 6: /* DECOM: DEC origin mode */
2272 term
->dec_om
= state
;
2274 case 7: /* DECAWM: auto wrap */
2277 case 8: /* DECARM: auto key repeat */
2278 term
->repeat_off
= !state
;
2280 case 10: /* DECEDM: set local edit mode */
2281 term
->term_editing
= state
;
2282 if (term
->ldisc
) /* cause ldisc to notice changes */
2283 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2285 case 25: /* DECTCEM: enable/disable cursor */
2286 compatibility2(OTHER
, VT220
);
2287 term
->cursor_on
= state
;
2288 seen_disp_event(term
);
2290 case 47: /* alternate screen */
2291 compatibility(OTHER
);
2293 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2296 case 1000: /* xterm mouse 1 */
2297 term
->xterm_mouse
= state ?
1 : 0;
2298 set_raw_mouse_mode(term
->frontend
, state
);
2300 case 1002: /* xterm mouse 2 */
2301 term
->xterm_mouse
= state ?
2 : 0;
2302 set_raw_mouse_mode(term
->frontend
, state
);
2304 case 1047: /* alternate screen */
2305 compatibility(OTHER
);
2307 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2310 case 1048: /* save/restore cursor */
2311 if (!term
->cfg
.no_alt_screen
)
2312 save_cursor(term
, state
);
2313 if (!state
) seen_disp_event(term
);
2315 case 1049: /* cursor & alternate screen */
2316 if (state
&& !term
->cfg
.no_alt_screen
)
2317 save_cursor(term
, state
);
2318 if (!state
) seen_disp_event(term
);
2319 compatibility(OTHER
);
2321 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2322 if (!state
&& !term
->cfg
.no_alt_screen
)
2323 save_cursor(term
, state
);
2328 case 4: /* IRM: set insert mode */
2329 compatibility(VT102
);
2330 term
->insert
= state
;
2332 case 12: /* SRM: set echo mode */
2333 term
->term_echoing
= !state
;
2334 if (term
->ldisc
) /* cause ldisc to notice changes */
2335 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2337 case 20: /* LNM: Return sends ... */
2338 term
->cr_lf_return
= state
;
2340 case 34: /* WYULCURM: Make cursor BIG */
2341 compatibility2(OTHER
, VT220
);
2342 term
->big_cursor
= !state
;
2347 * Process an OSC sequence: set window title or icon name.
2349 static void do_osc(Terminal
*term
)
2352 while (term
->osc_strlen
--)
2353 term
->wordness
[(unsigned char)
2354 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2356 term
->osc_string
[term
->osc_strlen
] = '\0';
2357 switch (term
->esc_args
[0]) {
2360 if (!term
->cfg
.no_remote_wintitle
)
2361 set_icon(term
->frontend
, term
->osc_string
);
2362 if (term
->esc_args
[0] == 1)
2364 /* fall through: parameter 0 means set both */
2367 if (!term
->cfg
.no_remote_wintitle
)
2368 set_title(term
->frontend
, term
->osc_string
);
2375 * ANSI printing routines.
2377 static void term_print_setup(Terminal
*term
)
2379 bufchain_clear(&term
->printer_buf
);
2380 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2382 static void term_print_flush(Terminal
*term
)
2387 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2388 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2391 printer_job_data(term
->print_job
, data
, len
);
2392 bufchain_consume(&term
->printer_buf
, len
);
2395 static void term_print_finish(Terminal
*term
)
2401 if (!term
->printing
&& !term
->only_printing
)
2402 return; /* we need do nothing */
2404 term_print_flush(term
);
2405 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2406 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2408 if (c
== '\033' || c
== '\233') {
2409 bufchain_consume(&term
->printer_buf
, size
);
2412 printer_job_data(term
->print_job
, &c
, 1);
2413 bufchain_consume(&term
->printer_buf
, 1);
2416 printer_finish_job(term
->print_job
);
2417 term
->print_job
= NULL
;
2418 term
->printing
= term
->only_printing
= FALSE
;
2422 * Remove everything currently in `inbuf' and stick it up on the
2423 * in-memory display. There's a big state machine in here to
2424 * process escape sequences...
2426 static void term_out(Terminal
*term
)
2430 unsigned char localbuf
[256], *chars
;
2435 chars
= NULL
; /* placate compiler warnings */
2436 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
2440 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2441 if (nchars
> sizeof(localbuf
))
2442 nchars
= sizeof(localbuf
);
2443 memcpy(localbuf
, ret
, nchars
);
2444 bufchain_consume(&term
->inbuf
, nchars
);
2446 assert(chars
!= NULL
);
2452 * Optionally log the session traffic to a file. Useful for
2453 * debugging and possibly also useful for actual logging.
2455 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2456 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2462 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2463 * be able to display 8-bit characters, but I'll let that go 'cause
2468 * If we're printing, add the character to the printer
2471 if (term
->printing
) {
2472 bufchain_add(&term
->printer_buf
, &c
, 1);
2475 * If we're in print-only mode, we use a much simpler
2476 * state machine designed only to recognise the ESC[4i
2477 * termination sequence.
2479 if (term
->only_printing
) {
2481 term
->print_state
= 1;
2482 else if (c
== (unsigned char)'\233')
2483 term
->print_state
= 2;
2484 else if (c
== '[' && term
->print_state
== 1)
2485 term
->print_state
= 2;
2486 else if (c
== '4' && term
->print_state
== 2)
2487 term
->print_state
= 3;
2488 else if (c
== 'i' && term
->print_state
== 3)
2489 term
->print_state
= 4;
2491 term
->print_state
= 0;
2492 if (term
->print_state
== 4) {
2493 term_print_finish(term
);
2499 /* First see about all those translations. */
2500 if (term
->termstate
== TOPLEVEL
) {
2502 switch (term
->utf_state
) {
2505 /* UTF-8 must be stateless so we ignore iso2022. */
2506 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2507 c
= term
->ucsdata
->unitab_ctrl
[c
];
2508 else c
= ((unsigned char)c
) | CSET_ASCII
;
2510 } else if ((c
& 0xe0) == 0xc0) {
2511 term
->utf_size
= term
->utf_state
= 1;
2512 term
->utf_char
= (c
& 0x1f);
2513 } else if ((c
& 0xf0) == 0xe0) {
2514 term
->utf_size
= term
->utf_state
= 2;
2515 term
->utf_char
= (c
& 0x0f);
2516 } else if ((c
& 0xf8) == 0xf0) {
2517 term
->utf_size
= term
->utf_state
= 3;
2518 term
->utf_char
= (c
& 0x07);
2519 } else if ((c
& 0xfc) == 0xf8) {
2520 term
->utf_size
= term
->utf_state
= 4;
2521 term
->utf_char
= (c
& 0x03);
2522 } else if ((c
& 0xfe) == 0xfc) {
2523 term
->utf_size
= term
->utf_state
= 5;
2524 term
->utf_char
= (c
& 0x01);
2535 if ((c
& 0xC0) != 0x80) {
2538 term
->utf_state
= 0;
2541 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2542 if (--term
->utf_state
)
2547 /* Is somebody trying to be evil! */
2549 (c
< 0x800 && term
->utf_size
>= 2) ||
2550 (c
< 0x10000 && term
->utf_size
>= 3) ||
2551 (c
< 0x200000 && term
->utf_size
>= 4) ||
2552 (c
< 0x4000000 && term
->utf_size
>= 5))
2555 /* Unicode line separator and paragraph separator are CR-LF */
2556 if (c
== 0x2028 || c
== 0x2029)
2559 /* High controls are probably a Baaad idea too. */
2563 /* The UTF-16 surrogates are not nice either. */
2564 /* The standard give the option of decoding these:
2565 * I don't want to! */
2566 if (c
>= 0xD800 && c
< 0xE000)
2569 /* ISO 10646 characters now limited to UTF-16 range. */
2573 /* This is currently a TagPhobic application.. */
2574 if (c
>= 0xE0000 && c
<= 0xE007F)
2577 /* U+FEFF is best seen as a null. */
2580 /* But U+FFFE is an error. */
2581 if (c
== 0xFFFE || c
== 0xFFFF)
2586 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2587 else if(term
->sco_acs
&&
2588 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2590 if (term
->sco_acs
== 2) c
|= 0x80;
2593 switch (term
->cset_attr
[term
->cset
]) {
2595 * Linedraw characters are different from 'ESC ( B'
2596 * only for a small range. For ones outside that
2597 * range, make sure we use the same font as well as
2598 * the same encoding.
2601 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2602 c
= term
->ucsdata
->unitab_ctrl
[c
];
2604 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2608 /* If UK-ASCII, make the '#' a LineDraw Pound */
2610 c
= '}' | CSET_LINEDRW
;
2613 /*FALLTHROUGH*/ case CSET_ASCII
:
2614 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2615 c
= term
->ucsdata
->unitab_ctrl
[c
];
2617 c
= ((unsigned char) c
) | CSET_ASCII
;
2620 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2627 * How about C1 controls?
2628 * Explicitly ignore SCI (0x9a), which we don't translate to DECID.
2630 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2631 !term
->vt52_mode
&& has_compat(VT220
)) {
2635 term
->termstate
= SEEN_ESC
;
2636 term
->esc_query
= FALSE
;
2637 c
= '@' + (c
& 0x1F);
2641 /* Or the GL control. */
2642 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2643 if (term
->curs
.x
&& !term
->wrapnext
)
2645 term
->wrapnext
= FALSE
;
2646 /* destructive backspace might be disabled */
2647 if (!term
->cfg
.no_dbackspace
) {
2648 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2649 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2650 copy_termchar(scrlineptr(term
->curs
.y
),
2651 term
->curs
.x
, &term
->erase_char
);
2654 /* Or normal C0 controls. */
2655 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2657 case '\005': /* ENQ: terminal type query */
2659 * Strictly speaking this is VT100 but a VT100 defaults to
2660 * no response. Other terminals respond at their option.
2662 * Don't put a CR in the default string as this tends to
2663 * upset some weird software.
2665 compatibility(ANSIMIN
);
2667 char abuf
[256], *s
, *d
;
2669 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
2671 if (*s
>= 'a' && *s
<= 'z')
2672 *d
++ = (*s
- ('a' - 1));
2673 else if ((*s
>= '@' && *s
<= '_') ||
2674 *s
== '?' || (*s
& 0x80))
2679 } else if (*s
== '^') {
2684 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2688 case '\007': /* BEL: Bell */
2690 struct beeptime
*newbeep
;
2691 unsigned long ticks
;
2693 ticks
= GETTICKCOUNT();
2695 if (!term
->beep_overloaded
) {
2696 newbeep
= snew(struct beeptime
);
2697 newbeep
->ticks
= ticks
;
2698 newbeep
->next
= NULL
;
2699 if (!term
->beephead
)
2700 term
->beephead
= newbeep
;
2702 term
->beeptail
->next
= newbeep
;
2703 term
->beeptail
= newbeep
;
2708 * Throw out any beeps that happened more than
2711 while (term
->beephead
&&
2712 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2713 struct beeptime
*tmp
= term
->beephead
;
2714 term
->beephead
= tmp
->next
;
2716 if (!term
->beephead
)
2717 term
->beeptail
= NULL
;
2721 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2722 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2724 * If we're currently overloaded and the
2725 * last beep was more than s seconds ago,
2726 * leave overload mode.
2728 term
->beep_overloaded
= FALSE
;
2729 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2730 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2732 * Now, if we have n or more beeps
2733 * remaining in the queue, go into overload
2736 term
->beep_overloaded
= TRUE
;
2738 term
->lastbeep
= ticks
;
2741 * Perform an actual beep if we're not overloaded.
2743 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2744 beep(term
->frontend
, term
->cfg
.beep
);
2746 if (term
->cfg
.beep
== BELL_VISUAL
) {
2747 term_schedule_vbell(term
, FALSE
, 0);
2750 seen_disp_event(term
);
2753 case '\b': /* BS: Back space */
2754 if (term
->curs
.x
== 0 &&
2755 (term
->curs
.y
== 0 || term
->wrap
== 0))
2757 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2758 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2759 else if (term
->wrapnext
)
2760 term
->wrapnext
= FALSE
;
2763 seen_disp_event(term
);
2765 case '\016': /* LS1: Locking-shift one */
2766 compatibility(VT100
);
2769 case '\017': /* LS0: Locking-shift zero */
2770 compatibility(VT100
);
2773 case '\033': /* ESC: Escape */
2774 if (term
->vt52_mode
)
2775 term
->termstate
= VT52_ESC
;
2777 compatibility(ANSIMIN
);
2778 term
->termstate
= SEEN_ESC
;
2779 term
->esc_query
= FALSE
;
2782 case '\015': /* CR: Carriage return */
2784 term
->wrapnext
= FALSE
;
2785 seen_disp_event(term
);
2786 term
->paste_hold
= 0;
2788 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2790 case '\014': /* FF: Form feed */
2791 if (has_compat(SCOANSI
)) {
2792 move(term
, 0, 0, 0);
2793 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2795 term
->wrapnext
= FALSE
;
2796 seen_disp_event(term
);
2799 case '\013': /* VT: Line tabulation */
2800 compatibility(VT100
);
2801 case '\012': /* LF: Line feed */
2802 if (term
->curs
.y
== term
->marg_b
)
2803 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2804 else if (term
->curs
.y
< term
->rows
- 1)
2806 if (term
->cfg
.lfhascr
)
2808 term
->wrapnext
= FALSE
;
2809 seen_disp_event(term
);
2810 term
->paste_hold
= 0;
2812 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2814 case '\t': /* HT: Character tabulation */
2816 pos old_curs
= term
->curs
;
2817 termline
*ldata
= scrlineptr(term
->curs
.y
);
2821 } while (term
->curs
.x
< term
->cols
- 1 &&
2822 !term
->tabs
[term
->curs
.x
]);
2824 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2825 if (term
->curs
.x
>= term
->cols
/ 2)
2826 term
->curs
.x
= term
->cols
/ 2 - 1;
2828 if (term
->curs
.x
>= term
->cols
)
2829 term
->curs
.x
= term
->cols
- 1;
2832 check_selection(term
, old_curs
, term
->curs
);
2834 seen_disp_event(term
);
2838 switch (term
->termstate
) {
2840 /* Only graphic characters get this far;
2841 * ctrls are stripped above */
2843 termline
*cline
= scrlineptr(term
->curs
.y
);
2848 width
= wcwidth((wchar_t) c
);
2850 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2851 cline
->lattr
|= LATTR_WRAPPED
;
2852 if (term
->curs
.y
== term
->marg_b
)
2853 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2854 else if (term
->curs
.y
< term
->rows
- 1)
2857 term
->wrapnext
= FALSE
;
2858 cline
= scrlineptr(term
->curs
.y
);
2860 if (term
->insert
&& width
> 0)
2862 if (term
->selstate
!= NO_SELECTION
) {
2863 pos cursplus
= term
->curs
;
2865 check_selection(term
, term
->curs
, cursplus
);
2867 if (((c
& CSET_MASK
) == CSET_ASCII
||
2868 (c
& CSET_MASK
) == 0) &&
2870 logtraffic(term
->logctx
, (unsigned char) c
,
2876 * If we're about to display a double-width
2877 * character starting in the rightmost
2878 * column, then we do something special
2879 * instead. We must print a space in the
2880 * last column of the screen, then wrap;
2881 * and we also set LATTR_WRAPPED2 which
2882 * instructs subsequent cut-and-pasting not
2883 * only to splice this line to the one
2884 * after it, but to ignore the space in the
2885 * last character position as well.
2886 * (Because what was actually output to the
2887 * terminal was presumably just a sequence
2888 * of CJK characters, and we don't want a
2889 * space to be pasted in the middle of
2890 * those just because they had the
2891 * misfortune to start in the wrong parity
2892 * column. xterm concurs.)
2894 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2895 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2896 if (term
->curs
.x
== term
->cols
-1) {
2897 copy_termchar(cline
, term
->curs
.x
,
2899 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2900 if (term
->curs
.y
== term
->marg_b
)
2901 scroll(term
, term
->marg_t
, term
->marg_b
,
2903 else if (term
->curs
.y
< term
->rows
- 1)
2906 cline
= scrlineptr(term
->curs
.y
);
2907 /* Now we must check_boundary again, of course. */
2908 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2909 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2913 clear_cc(cline
, term
->curs
.x
);
2914 cline
->chars
[term
->curs
.x
].chr
= c
;
2915 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2920 clear_cc(cline
, term
->curs
.x
);
2921 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2922 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2926 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2927 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2930 clear_cc(cline
, term
->curs
.x
);
2931 cline
->chars
[term
->curs
.x
].chr
= c
;
2932 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2936 if (term
->curs
.x
> 0) {
2937 int x
= term
->curs
.x
- 1;
2939 /* If we're in wrapnext state, the character
2940 * to combine with is _here_, not to our left. */
2945 * If the previous character is
2946 * UCSWIDE, back up another one.
2948 if (cline
->chars
[x
].chr
== UCSWIDE
) {
2953 add_cc(cline
, x
, c
);
2954 seen_disp_event(term
);
2961 if (term
->curs
.x
== term
->cols
) {
2963 term
->wrapnext
= TRUE
;
2964 if (term
->wrap
&& term
->vt52_mode
) {
2965 cline
->lattr
|= LATTR_WRAPPED
;
2966 if (term
->curs
.y
== term
->marg_b
)
2967 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2968 else if (term
->curs
.y
< term
->rows
- 1)
2971 term
->wrapnext
= FALSE
;
2974 seen_disp_event(term
);
2980 * This state is virtually identical to SEEN_ESC, with the
2981 * exception that we have an OSC sequence in the pipeline,
2982 * and _if_ we see a backslash, we process it.
2986 term
->termstate
= TOPLEVEL
;
2989 /* else fall through */
2991 if (c
>= ' ' && c
<= '/') {
2992 if (term
->esc_query
)
2993 term
->esc_query
= -1;
2995 term
->esc_query
= c
;
2998 term
->termstate
= TOPLEVEL
;
2999 switch (ANSI(c
, term
->esc_query
)) {
3000 case '[': /* enter CSI mode */
3001 term
->termstate
= SEEN_CSI
;
3002 term
->esc_nargs
= 1;
3003 term
->esc_args
[0] = ARG_DEFAULT
;
3004 term
->esc_query
= FALSE
;
3006 case ']': /* OSC: xterm escape sequences */
3007 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
3008 compatibility(OTHER
);
3009 term
->termstate
= SEEN_OSC
;
3010 term
->esc_args
[0] = 0;
3012 case '7': /* DECSC: save cursor */
3013 compatibility(VT100
);
3014 save_cursor(term
, TRUE
);
3016 case '8': /* DECRC: restore cursor */
3017 compatibility(VT100
);
3018 save_cursor(term
, FALSE
);
3019 seen_disp_event(term
);
3021 case '=': /* DECKPAM: Keypad application mode */
3022 compatibility(VT100
);
3023 term
->app_keypad_keys
= TRUE
;
3025 case '>': /* DECKPNM: Keypad numeric mode */
3026 compatibility(VT100
);
3027 term
->app_keypad_keys
= FALSE
;
3029 case 'D': /* IND: exactly equivalent to LF */
3030 compatibility(VT100
);
3031 if (term
->curs
.y
== term
->marg_b
)
3032 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3033 else if (term
->curs
.y
< term
->rows
- 1)
3035 term
->wrapnext
= FALSE
;
3036 seen_disp_event(term
);
3038 case 'E': /* NEL: exactly equivalent to CR-LF */
3039 compatibility(VT100
);
3041 if (term
->curs
.y
== term
->marg_b
)
3042 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3043 else if (term
->curs
.y
< term
->rows
- 1)
3045 term
->wrapnext
= FALSE
;
3046 seen_disp_event(term
);
3048 case 'M': /* RI: reverse index - backwards LF */
3049 compatibility(VT100
);
3050 if (term
->curs
.y
== term
->marg_t
)
3051 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
3052 else if (term
->curs
.y
> 0)
3054 term
->wrapnext
= FALSE
;
3055 seen_disp_event(term
);
3057 case 'Z': /* DECID: terminal type query */
3058 compatibility(VT100
);
3060 ldisc_send(term
->ldisc
, term
->id_string
,
3061 strlen(term
->id_string
), 0);
3063 case 'c': /* RIS: restore power-on settings */
3064 compatibility(VT100
);
3066 if (term
->ldisc
) /* cause ldisc to notice changes */
3067 ldisc_send(term
->ldisc
, NULL
, 0, 0);
3068 if (term
->reset_132
) {
3069 if (!term
->cfg
.no_remote_resize
)
3070 request_resize(term
->frontend
, 80, term
->rows
);
3071 term
->reset_132
= 0;
3074 seen_disp_event(term
);
3076 case 'H': /* HTS: set a tab */
3077 compatibility(VT100
);
3078 term
->tabs
[term
->curs
.x
] = TRUE
;
3081 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
3082 compatibility(VT100
);
3088 for (i
= 0; i
< term
->rows
; i
++) {
3089 ldata
= scrlineptr(i
);
3090 for (j
= 0; j
< term
->cols
; j
++) {
3091 copy_termchar(ldata
, j
,
3092 &term
->basic_erase_char
);
3093 ldata
->chars
[j
].chr
= 'E';
3095 ldata
->lattr
= LATTR_NORM
;
3098 seen_disp_event(term
);
3099 scrtop
.x
= scrtop
.y
= 0;
3101 scrbot
.y
= term
->rows
;
3102 check_selection(term
, scrtop
, scrbot
);
3106 case ANSI('3', '#'):
3107 case ANSI('4', '#'):
3108 case ANSI('5', '#'):
3109 case ANSI('6', '#'):
3110 compatibility(VT100
);
3114 switch (ANSI(c
, term
->esc_query
)) {
3115 case ANSI('3', '#'): /* DECDHL: 2*height, top */
3118 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
3121 case ANSI('5', '#'): /* DECSWL: normal */
3122 nlattr
= LATTR_NORM
;
3124 default: /* case ANSI('6', '#'): DECDWL: 2*width */
3125 nlattr
= LATTR_WIDE
;
3128 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
3131 /* GZD4: G0 designate 94-set */
3132 case ANSI('A', '('):
3133 compatibility(VT100
);
3134 if (!term
->cfg
.no_remote_charset
)
3135 term
->cset_attr
[0] = CSET_GBCHR
;
3137 case ANSI('B', '('):
3138 compatibility(VT100
);
3139 if (!term
->cfg
.no_remote_charset
)
3140 term
->cset_attr
[0] = CSET_ASCII
;
3142 case ANSI('0', '('):
3143 compatibility(VT100
);
3144 if (!term
->cfg
.no_remote_charset
)
3145 term
->cset_attr
[0] = CSET_LINEDRW
;
3147 case ANSI('U', '('):
3148 compatibility(OTHER
);
3149 if (!term
->cfg
.no_remote_charset
)
3150 term
->cset_attr
[0] = CSET_SCOACS
;
3152 /* G1D4: G1-designate 94-set */
3153 case ANSI('A', ')'):
3154 compatibility(VT100
);
3155 if (!term
->cfg
.no_remote_charset
)
3156 term
->cset_attr
[1] = CSET_GBCHR
;
3158 case ANSI('B', ')'):
3159 compatibility(VT100
);
3160 if (!term
->cfg
.no_remote_charset
)
3161 term
->cset_attr
[1] = CSET_ASCII
;
3163 case ANSI('0', ')'):
3164 compatibility(VT100
);
3165 if (!term
->cfg
.no_remote_charset
)
3166 term
->cset_attr
[1] = CSET_LINEDRW
;
3168 case ANSI('U', ')'):
3169 compatibility(OTHER
);
3170 if (!term
->cfg
.no_remote_charset
)
3171 term
->cset_attr
[1] = CSET_SCOACS
;
3173 /* DOCS: Designate other coding system */
3174 case ANSI('8', '%'): /* Old Linux code */
3175 case ANSI('G', '%'):
3176 compatibility(OTHER
);
3177 if (!term
->cfg
.no_remote_charset
)
3180 case ANSI('@', '%'):
3181 compatibility(OTHER
);
3182 if (!term
->cfg
.no_remote_charset
)
3188 term
->termstate
= TOPLEVEL
; /* default */
3190 if (term
->esc_nargs
<= ARGS_MAX
) {
3191 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3192 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3193 term
->esc_args
[term
->esc_nargs
- 1] =
3194 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3196 term
->termstate
= SEEN_CSI
;
3197 } else if (c
== ';') {
3198 if (++term
->esc_nargs
<= ARGS_MAX
)
3199 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
3200 term
->termstate
= SEEN_CSI
;
3201 } else if (c
< '@') {
3202 if (term
->esc_query
)
3203 term
->esc_query
= -1;
3205 term
->esc_query
= TRUE
;
3207 term
->esc_query
= c
;
3208 term
->termstate
= SEEN_CSI
;
3210 switch (ANSI(c
, term
->esc_query
)) {
3211 case 'A': /* CUU: move up N lines */
3212 move(term
, term
->curs
.x
,
3213 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3214 seen_disp_event(term
);
3216 case 'e': /* VPR: move down N lines */
3217 compatibility(ANSI
);
3219 case 'B': /* CUD: Cursor down */
3220 move(term
, term
->curs
.x
,
3221 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3222 seen_disp_event(term
);
3224 case ANSI('c', '>'): /* DA: report xterm version */
3225 compatibility(OTHER
);
3226 /* this reports xterm version 136 so that VIM can
3227 use the drag messages from the mouse reporting */
3229 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3231 case 'a': /* HPR: move right N cols */
3232 compatibility(ANSI
);
3234 case 'C': /* CUF: Cursor right */
3235 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3237 seen_disp_event(term
);
3239 case 'D': /* CUB: move left N cols */
3240 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3242 seen_disp_event(term
);
3244 case 'E': /* CNL: move down N lines and CR */
3245 compatibility(ANSI
);
3247 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3248 seen_disp_event(term
);
3250 case 'F': /* CPL: move up N lines and CR */
3251 compatibility(ANSI
);
3253 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3254 seen_disp_event(term
);
3257 case '`': /* HPA: set horizontal posn */
3258 compatibility(ANSI
);
3259 move(term
, def(term
->esc_args
[0], 1) - 1,
3261 seen_disp_event(term
);
3263 case 'd': /* VPA: set vertical posn */
3264 compatibility(ANSI
);
3265 move(term
, term
->curs
.x
,
3266 ((term
->dec_om ? term
->marg_t
: 0) +
3267 def(term
->esc_args
[0], 1) - 1),
3268 (term
->dec_om ?
2 : 0));
3269 seen_disp_event(term
);
3272 case 'f': /* HVP: set horz and vert posns at once */
3273 if (term
->esc_nargs
< 2)
3274 term
->esc_args
[1] = ARG_DEFAULT
;
3275 move(term
, def(term
->esc_args
[1], 1) - 1,
3276 ((term
->dec_om ? term
->marg_t
: 0) +
3277 def(term
->esc_args
[0], 1) - 1),
3278 (term
->dec_om ?
2 : 0));
3279 seen_disp_event(term
);
3281 case 'J': /* ED: erase screen or parts of it */
3283 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3286 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3289 seen_disp_event(term
);
3291 case 'K': /* EL: erase line or parts of it */
3293 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3296 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3298 seen_disp_event(term
);
3300 case 'L': /* IL: insert lines */
3301 compatibility(VT102
);
3302 if (term
->curs
.y
<= term
->marg_b
)
3303 scroll(term
, term
->curs
.y
, term
->marg_b
,
3304 -def(term
->esc_args
[0], 1), FALSE
);
3305 seen_disp_event(term
);
3307 case 'M': /* DL: delete lines */
3308 compatibility(VT102
);
3309 if (term
->curs
.y
<= term
->marg_b
)
3310 scroll(term
, term
->curs
.y
, term
->marg_b
,
3311 def(term
->esc_args
[0], 1),
3313 seen_disp_event(term
);
3315 case '@': /* ICH: insert chars */
3316 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3317 compatibility(VT102
);
3318 insch(term
, def(term
->esc_args
[0], 1));
3319 seen_disp_event(term
);
3321 case 'P': /* DCH: delete chars */
3322 compatibility(VT102
);
3323 insch(term
, -def(term
->esc_args
[0], 1));
3324 seen_disp_event(term
);
3326 case 'c': /* DA: terminal type query */
3327 compatibility(VT100
);
3328 /* This is the response for a VT102 */
3330 ldisc_send(term
->ldisc
, term
->id_string
,
3331 strlen(term
->id_string
), 0);
3333 case 'n': /* DSR: cursor position query */
3335 if (term
->esc_args
[0] == 6) {
3337 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3339 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3340 } else if (term
->esc_args
[0] == 5) {
3341 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3345 case 'h': /* SM: toggle modes to high */
3347 compatibility(VT100
);
3350 for (i
= 0; i
< term
->esc_nargs
; i
++)
3351 toggle_mode(term
, term
->esc_args
[i
],
3352 term
->esc_query
, TRUE
);
3355 case 'i': /* MC: Media copy */
3357 compatibility(VT100
);
3359 if (term
->esc_nargs
!= 1) break;
3360 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3361 term
->printing
= TRUE
;
3362 term
->only_printing
= !term
->esc_query
;
3363 term
->print_state
= 0;
3364 term_print_setup(term
);
3365 } else if (term
->esc_args
[0] == 4 &&
3367 term_print_finish(term
);
3371 case 'l': /* RM: toggle modes to low */
3373 compatibility(VT100
);
3376 for (i
= 0; i
< term
->esc_nargs
; i
++)
3377 toggle_mode(term
, term
->esc_args
[i
],
3378 term
->esc_query
, FALSE
);
3381 case 'g': /* TBC: clear tabs */
3382 compatibility(VT100
);
3383 if (term
->esc_nargs
== 1) {
3384 if (term
->esc_args
[0] == 0) {
3385 term
->tabs
[term
->curs
.x
] = FALSE
;
3386 } else if (term
->esc_args
[0] == 3) {
3388 for (i
= 0; i
< term
->cols
; i
++)
3389 term
->tabs
[i
] = FALSE
;
3393 case 'r': /* DECSTBM: set scroll margins */
3394 compatibility(VT100
);
3395 if (term
->esc_nargs
<= 2) {
3397 top
= def(term
->esc_args
[0], 1) - 1;
3398 bot
= (term
->esc_nargs
<= 1
3399 || term
->esc_args
[1] == 0 ?
3401 def(term
->esc_args
[1], term
->rows
)) - 1;
3402 if (bot
>= term
->rows
)
3403 bot
= term
->rows
- 1;
3404 /* VTTEST Bug 9 - if region is less than 2 lines
3405 * don't change region.
3407 if (bot
- top
> 0) {
3412 * I used to think the cursor should be
3413 * placed at the top of the newly marginned
3414 * area. Apparently not: VMS TPU falls over
3417 * Well actually it should for
3420 term
->curs
.y
= (term
->dec_om ?
3422 seen_disp_event(term
);
3426 case 'm': /* SGR: set graphics rendition */
3429 * A VT100 without the AVO only had one
3430 * attribute, either underline or
3431 * reverse video depending on the
3432 * cursor type, this was selected by
3436 * This is sometimes DIM, eg on the
3439 * This is sometimes INVIS various ANSI.
3441 * This like 22 disables BOLD, DIM and INVIS
3443 * The ANSI colours appear on any
3444 * terminal that has colour (obviously)
3445 * but the interaction between sgr0 and
3446 * the colours varies but is usually
3447 * related to the background colour
3448 * erase item. The interaction between
3449 * colour attributes and the mono ones
3450 * is also very implementation
3453 * The 39 and 49 attributes are likely
3454 * to be unimplemented.
3457 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3458 switch (def(term
->esc_args
[i
], 0)) {
3459 case 0: /* restore defaults */
3460 term
->curr_attr
= term
->default_attr
;
3462 case 1: /* enable bold */
3463 compatibility(VT100AVO
);
3464 term
->curr_attr
|= ATTR_BOLD
;
3466 case 21: /* (enable double underline) */
3467 compatibility(OTHER
);
3468 case 4: /* enable underline */
3469 compatibility(VT100AVO
);
3470 term
->curr_attr
|= ATTR_UNDER
;
3472 case 5: /* enable blink */
3473 compatibility(VT100AVO
);
3474 term
->curr_attr
|= ATTR_BLINK
;
3476 case 6: /* SCO light bkgrd */
3477 compatibility(SCOANSI
);
3478 term
->blink_is_real
= FALSE
;
3479 term
->curr_attr
|= ATTR_BLINK
;
3480 term_schedule_tblink(term
);
3482 case 7: /* enable reverse video */
3483 term
->curr_attr
|= ATTR_REVERSE
;
3485 case 10: /* SCO acs off */
3486 compatibility(SCOANSI
);
3487 if (term
->cfg
.no_remote_charset
) break;
3488 term
->sco_acs
= 0; break;
3489 case 11: /* SCO acs on */
3490 compatibility(SCOANSI
);
3491 if (term
->cfg
.no_remote_charset
) break;
3492 term
->sco_acs
= 1; break;
3493 case 12: /* SCO acs on, |0x80 */
3494 compatibility(SCOANSI
);
3495 if (term
->cfg
.no_remote_charset
) break;
3496 term
->sco_acs
= 2; break;
3497 case 22: /* disable bold */
3498 compatibility2(OTHER
, VT220
);
3499 term
->curr_attr
&= ~ATTR_BOLD
;
3501 case 24: /* disable underline */
3502 compatibility2(OTHER
, VT220
);
3503 term
->curr_attr
&= ~ATTR_UNDER
;
3505 case 25: /* disable blink */
3506 compatibility2(OTHER
, VT220
);
3507 term
->curr_attr
&= ~ATTR_BLINK
;
3509 case 27: /* disable reverse video */
3510 compatibility2(OTHER
, VT220
);
3511 term
->curr_attr
&= ~ATTR_REVERSE
;
3522 term
->curr_attr
&= ~ATTR_FGMASK
;
3524 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3534 /* aixterm-style bright foreground */
3535 term
->curr_attr
&= ~ATTR_FGMASK
;
3537 ((term
->esc_args
[i
] - 90 + 8)
3540 case 39: /* default-foreground */
3541 term
->curr_attr
&= ~ATTR_FGMASK
;
3542 term
->curr_attr
|= ATTR_DEFFG
;
3553 term
->curr_attr
&= ~ATTR_BGMASK
;
3555 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3565 /* aixterm-style bright background */
3566 term
->curr_attr
&= ~ATTR_BGMASK
;
3568 ((term
->esc_args
[i
] - 100 + 8)
3571 case 49: /* default-background */
3572 term
->curr_attr
&= ~ATTR_BGMASK
;
3573 term
->curr_attr
|= ATTR_DEFBG
;
3575 case 38: /* xterm 256-colour mode */
3576 if (i
+2 < term
->esc_nargs
&&
3577 term
->esc_args
[i
+1] == 5) {
3578 term
->curr_attr
&= ~ATTR_FGMASK
;
3580 ((term
->esc_args
[i
+2] & 0xFF)
3585 case 48: /* xterm 256-colour mode */
3586 if (i
+2 < term
->esc_nargs
&&
3587 term
->esc_args
[i
+1] == 5) {
3588 term
->curr_attr
&= ~ATTR_BGMASK
;
3590 ((term
->esc_args
[i
+2] & 0xFF)
3597 set_erase_char(term
);
3600 case 's': /* save cursor */
3601 save_cursor(term
, TRUE
);
3603 case 'u': /* restore cursor */
3604 save_cursor(term
, FALSE
);
3605 seen_disp_event(term
);
3607 case 't': /* DECSLPP: set page size - ie window height */
3609 * VT340/VT420 sequence DECSLPP, DEC only allows values
3610 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3611 * illegal values (eg first arg 1..9) for window changing
3614 if (term
->esc_nargs
<= 1
3615 && (term
->esc_args
[0] < 1 ||
3616 term
->esc_args
[0] >= 24)) {
3617 compatibility(VT340TEXT
);
3618 if (!term
->cfg
.no_remote_resize
)
3619 request_resize(term
->frontend
, term
->cols
,
3620 def(term
->esc_args
[0], 24));
3622 } else if (term
->esc_nargs
>= 1 &&
3623 term
->esc_args
[0] >= 1 &&
3624 term
->esc_args
[0] < 24) {
3625 compatibility(OTHER
);
3627 switch (term
->esc_args
[0]) {
3631 set_iconic(term
->frontend
, FALSE
);
3634 set_iconic(term
->frontend
, TRUE
);
3637 if (term
->esc_nargs
>= 3) {
3638 if (!term
->cfg
.no_remote_resize
)
3639 move_window(term
->frontend
,
3640 def(term
->esc_args
[1], 0),
3641 def(term
->esc_args
[2], 0));
3645 /* We should resize the window to a given
3646 * size in pixels here, but currently our
3647 * resizing code isn't healthy enough to
3652 set_zorder(term
->frontend
, TRUE
);
3655 /* move to bottom */
3656 set_zorder(term
->frontend
, FALSE
);
3659 refresh_window(term
->frontend
);
3662 if (term
->esc_nargs
>= 3) {
3663 if (!term
->cfg
.no_remote_resize
)
3664 request_resize(term
->frontend
,
3665 def(term
->esc_args
[2], term
->cfg
.width
),
3666 def(term
->esc_args
[1], term
->cfg
.height
));
3670 if (term
->esc_nargs
>= 2)
3671 set_zoomed(term
->frontend
,
3677 ldisc_send(term
->ldisc
,
3678 is_iconic(term
->frontend
) ?
3679 "\033[1t" : "\033[2t", 4, 0);
3683 get_window_pos(term
->frontend
, &x
, &y
);
3684 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3685 ldisc_send(term
->ldisc
, buf
, len
, 0);
3690 get_window_pixels(term
->frontend
, &x
, &y
);
3691 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3692 ldisc_send(term
->ldisc
, buf
, len
, 0);
3697 len
= sprintf(buf
, "\033[8;%d;%dt",
3698 term
->rows
, term
->cols
);
3699 ldisc_send(term
->ldisc
, buf
, len
, 0);
3704 * Hmmm. Strictly speaking we
3705 * should return `the size of the
3706 * screen in characters', but
3707 * that's not easy: (a) window
3708 * furniture being what it is it's
3709 * hard to compute, and (b) in
3710 * resize-font mode maximising the
3711 * window wouldn't change the
3712 * number of characters. *shrug*. I
3713 * think we'll ignore it for the
3714 * moment and see if anyone
3715 * complains, and then ask them
3716 * what they would like it to do.
3721 !term
->cfg
.no_remote_qtitle
) {
3722 p
= get_window_title(term
->frontend
, TRUE
);
3724 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3725 ldisc_send(term
->ldisc
, p
, len
, 0);
3726 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3731 !term
->cfg
.no_remote_qtitle
) {
3732 p
= get_window_title(term
->frontend
,FALSE
);
3734 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3735 ldisc_send(term
->ldisc
, p
, len
, 0);
3736 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3742 case 'S': /* SU: Scroll up */
3743 compatibility(SCOANSI
);
3744 scroll(term
, term
->marg_t
, term
->marg_b
,
3745 def(term
->esc_args
[0], 1), TRUE
);
3746 term
->wrapnext
= FALSE
;
3747 seen_disp_event(term
);
3749 case 'T': /* SD: Scroll down */
3750 compatibility(SCOANSI
);
3751 scroll(term
, term
->marg_t
, term
->marg_b
,
3752 -def(term
->esc_args
[0], 1), TRUE
);
3753 term
->wrapnext
= FALSE
;
3754 seen_disp_event(term
);
3756 case ANSI('|', '*'): /* DECSNLS */
3758 * Set number of lines on screen
3759 * VT420 uses VGA like hardware and can
3760 * support any size in reasonable range
3761 * (24..49 AIUI) with no default specified.
3763 compatibility(VT420
);
3764 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3765 if (!term
->cfg
.no_remote_resize
)
3766 request_resize(term
->frontend
, term
->cols
,
3767 def(term
->esc_args
[0],
3772 case ANSI('|', '$'): /* DECSCPP */
3774 * Set number of columns per page
3775 * Docs imply range is only 80 or 132, but
3778 compatibility(VT340TEXT
);
3779 if (term
->esc_nargs
<= 1) {
3780 if (!term
->cfg
.no_remote_resize
)
3781 request_resize(term
->frontend
,
3782 def(term
->esc_args
[0],
3783 term
->cfg
.width
), term
->rows
);
3787 case 'X': /* ECH: write N spaces w/o moving cursor */
3788 /* XXX VTTEST says this is vt220, vt510 manual
3790 compatibility(ANSIMIN
);
3792 int n
= def(term
->esc_args
[0], 1);
3794 int p
= term
->curs
.x
;
3795 termline
*cline
= scrlineptr(term
->curs
.y
);
3797 if (n
> term
->cols
- term
->curs
.x
)
3798 n
= term
->cols
- term
->curs
.x
;
3799 cursplus
= term
->curs
;
3801 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3802 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3803 check_selection(term
, term
->curs
, cursplus
);
3805 copy_termchar(cline
, p
++,
3807 seen_disp_event(term
);
3810 case 'x': /* DECREQTPARM: report terminal characteristics */
3811 compatibility(VT100
);
3814 int i
= def(term
->esc_args
[0], 0);
3815 if (i
== 0 || i
== 1) {
3816 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3818 ldisc_send(term
->ldisc
, buf
, 20, 0);
3823 compatibility(OTHER
);
3825 int i
= def(term
->esc_args
[0], 1);
3826 pos old_curs
= term
->curs
;
3828 for(;i
>0 && term
->curs
.x
>0; i
--) {
3831 } while (term
->curs
.x
>0 &&
3832 !term
->tabs
[term
->curs
.x
]);
3834 check_selection(term
, old_curs
, term
->curs
);
3837 case ANSI('c', '='): /* Hide or Show Cursor */
3838 compatibility(SCOANSI
);
3839 switch(term
->esc_args
[0]) {
3840 case 0: /* hide cursor */
3841 term
->cursor_on
= FALSE
;
3843 case 1: /* restore cursor */
3844 term
->big_cursor
= FALSE
;
3845 term
->cursor_on
= TRUE
;
3847 case 2: /* block cursor */
3848 term
->big_cursor
= TRUE
;
3849 term
->cursor_on
= TRUE
;
3853 case ANSI('C', '='):
3855 * set cursor start on scanline esc_args[0] and
3856 * end on scanline esc_args[1].If you set
3857 * the bottom scan line to a value less than
3858 * the top scan line, the cursor will disappear.
3860 compatibility(SCOANSI
);
3861 if (term
->esc_nargs
>= 2) {
3862 if (term
->esc_args
[0] > term
->esc_args
[1])
3863 term
->cursor_on
= FALSE
;
3865 term
->cursor_on
= TRUE
;
3868 case ANSI('D', '='):
3869 compatibility(SCOANSI
);
3870 term
->blink_is_real
= FALSE
;
3871 term_schedule_tblink(term
);
3872 if (term
->esc_args
[0]>=1)
3873 term
->curr_attr
|= ATTR_BLINK
;
3875 term
->curr_attr
&= ~ATTR_BLINK
;
3877 case ANSI('E', '='):
3878 compatibility(SCOANSI
);
3879 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3880 term_schedule_tblink(term
);
3882 case ANSI('F', '='): /* set normal foreground */
3883 compatibility(SCOANSI
);
3884 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3886 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3887 (term
->esc_args
[0] & 0x8)) <<
3889 term
->curr_attr
&= ~ATTR_FGMASK
;
3890 term
->curr_attr
|= colour
;
3891 term
->default_attr
&= ~ATTR_FGMASK
;
3892 term
->default_attr
|= colour
;
3895 case ANSI('G', '='): /* set normal background */
3896 compatibility(SCOANSI
);
3897 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3899 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3900 (term
->esc_args
[0] & 0x8)) <<
3902 term
->curr_attr
&= ~ATTR_BGMASK
;
3903 term
->curr_attr
|= colour
;
3904 term
->default_attr
&= ~ATTR_BGMASK
;
3905 term
->default_attr
|= colour
;
3908 case ANSI('L', '='):
3909 compatibility(SCOANSI
);
3910 term
->use_bce
= (term
->esc_args
[0] <= 0);
3911 set_erase_char(term
);
3913 case ANSI('p', '"'): /* DECSCL: set compat level */
3915 * Allow the host to make this emulator a
3916 * 'perfect' VT102. This first appeared in
3917 * the VT220, but we do need to get back to
3918 * PuTTY mode so I won't check it.
3920 * The arg in 40..42,50 are a PuTTY extension.
3921 * The 2nd arg, 8bit vs 7bit is not checked.
3923 * Setting VT102 mode should also change
3924 * the Fkeys to generate PF* codes as a
3925 * real VT102 has no Fkeys. The VT220 does
3926 * this, F11..F13 become ESC,BS,LF other
3927 * Fkeys send nothing.
3929 * Note ESC c will NOT change this!
3932 switch (term
->esc_args
[0]) {
3934 term
->compatibility_level
&= ~TM_VTXXX
;
3935 term
->compatibility_level
|= TM_VT102
;
3938 term
->compatibility_level
&= ~TM_VTXXX
;
3939 term
->compatibility_level
|= TM_VT220
;
3943 if (term
->esc_args
[0] > 60 &&
3944 term
->esc_args
[0] < 70)
3945 term
->compatibility_level
|= TM_VTXXX
;
3949 term
->compatibility_level
&= TM_VTXXX
;
3952 term
->compatibility_level
= TM_PUTTY
;
3955 term
->compatibility_level
= TM_SCOANSI
;
3959 term
->compatibility_level
= TM_PUTTY
;
3965 /* Change the response to CSI c */
3966 if (term
->esc_args
[0] == 50) {
3969 strcpy(term
->id_string
, "\033[?");
3970 for (i
= 1; i
< term
->esc_nargs
; i
++) {
3972 strcat(term
->id_string
, ";");
3973 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
3974 strcat(term
->id_string
, lbuf
);
3976 strcat(term
->id_string
, "c");
3979 /* Is this a good idea ?
3980 * Well we should do a soft reset at this point ...
3982 if (!has_compat(VT420
) && has_compat(VT100
)) {
3983 if (!term
->cfg
.no_remote_resize
) {
3984 if (term
->reset_132
)
3985 request_resize(132, 24);
3987 request_resize(80, 24);
3995 term
->osc_w
= FALSE
;
3997 case 'P': /* Linux palette sequence */
3998 term
->termstate
= SEEN_OSC_P
;
3999 term
->osc_strlen
= 0;
4001 case 'R': /* Linux palette reset */
4002 palette_reset(term
->frontend
);
4003 term_invalidate(term
);
4004 term
->termstate
= TOPLEVEL
;
4006 case 'W': /* word-set */
4007 term
->termstate
= SEEN_OSC_W
;
4020 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4024 * Grotty hack to support xterm and DECterm title
4025 * sequences concurrently.
4027 if (term
->esc_args
[0] == 2) {
4028 term
->esc_args
[0] = 1;
4031 /* else fall through */
4033 term
->termstate
= OSC_STRING
;
4034 term
->osc_strlen
= 0;
4039 * This OSC stuff is EVIL. It takes just one character to get into
4040 * sysline mode and it's not initially obvious how to get out.
4041 * So I've added CR and LF as string aborts.
4042 * This shouldn't effect compatibility as I believe embedded
4043 * control characters are supposed to be interpreted (maybe?)
4044 * and they don't display anything useful anyway.
4048 if (c
== '\012' || c
== '\015') {
4049 term
->termstate
= TOPLEVEL
;
4050 } else if (c
== 0234 || c
== '\007') {
4052 * These characters terminate the string; ST and BEL
4053 * terminate the sequence and trigger instant
4054 * processing of it, whereas ESC goes back to SEEN_ESC
4055 * mode unless it is followed by \, in which case it is
4056 * synonymous with ST in the first place.
4059 term
->termstate
= TOPLEVEL
;
4060 } else if (c
== '\033')
4061 term
->termstate
= OSC_MAYBE_ST
;
4062 else if (term
->osc_strlen
< OSC_STR_MAX
)
4063 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
4067 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
4069 if ((int)c
>= '0' && (int)c
<= '9')
4071 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
4073 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
4076 term
->termstate
= TOPLEVEL
;
4079 term
->osc_string
[term
->osc_strlen
++] = val
;
4080 if (term
->osc_strlen
>= 7) {
4081 palette_set(term
->frontend
, term
->osc_string
[0],
4082 term
->osc_string
[1] * 16 + term
->osc_string
[2],
4083 term
->osc_string
[3] * 16 + term
->osc_string
[4],
4084 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
4085 term_invalidate(term
);
4086 term
->termstate
= TOPLEVEL
;
4102 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4105 term
->termstate
= OSC_STRING
;
4106 term
->osc_strlen
= 0;
4110 term
->termstate
= TOPLEVEL
;
4111 seen_disp_event(term
);
4114 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
4117 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
4120 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
4123 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
4126 * From the VT100 Manual
4127 * NOTE: The special graphics characters in the VT100
4128 * are different from those in the VT52
4130 * From VT102 manual:
4131 * 137 _ Blank - Same
4132 * 140 ` Reserved - Humm.
4133 * 141 a Solid rectangle - Similar
4134 * 142 b 1/ - Top half of fraction for the
4135 * 143 c 3/ - subscript numbers below.
4138 * 146 f Degrees - Same
4139 * 147 g Plus or minus - Same
4141 * 151 i Ellipsis (dots)
4144 * 154 l Bar at scan 0
4145 * 155 m Bar at scan 1
4146 * 156 n Bar at scan 2
4147 * 157 o Bar at scan 3 - Similar
4148 * 160 p Bar at scan 4 - Similar
4149 * 161 q Bar at scan 5 - Similar
4150 * 162 r Bar at scan 6 - Same
4151 * 163 s Bar at scan 7 - Similar
4166 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
4169 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
4172 move(term
, 0, 0, 0);
4175 if (term
->curs
.y
== 0)
4176 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
4177 else if (term
->curs
.y
> 0)
4179 term
->wrapnext
= FALSE
;
4182 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4186 erase_lots(term
, TRUE
, FALSE
, TRUE
);
4190 /* XXX Print cursor line */
4193 /* XXX Start controller mode */
4196 /* XXX Stop controller mode */
4200 term
->termstate
= VT52_Y1
;
4204 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
4207 term
->app_keypad_keys
= TRUE
;
4210 term
->app_keypad_keys
= FALSE
;
4213 /* XXX This should switch to VT100 mode not current or default
4214 * VT mode. But this will only have effect in a VT220+
4217 term
->vt52_mode
= FALSE
;
4218 term
->blink_is_real
= term
->cfg
.blinktext
;
4219 term_schedule_tblink(term
);
4223 /* XXX Enter auto print mode */
4226 /* XXX Exit auto print mode */
4229 /* XXX Print screen */
4235 /* compatibility(ATARI) */
4236 move(term
, 0, 0, 0);
4237 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4241 /* compatibility(ATARI) */
4242 if (term
->curs
.y
<= term
->marg_b
)
4243 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4246 /* compatibility(ATARI) */
4247 if (term
->curs
.y
<= term
->marg_b
)
4248 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4251 /* compatibility(ATARI) */
4252 term
->termstate
= VT52_FG
;
4255 /* compatibility(ATARI) */
4256 term
->termstate
= VT52_BG
;
4259 /* compatibility(ATARI) */
4260 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4264 /* compatibility(ATARI) */
4265 term
->cursor_on
= TRUE
;
4268 /* compatibility(ATARI) */
4269 term
->cursor_on
= FALSE
;
4271 /* case 'j': Save cursor position - broken on ST */
4272 /* case 'k': Restore cursor position */
4274 /* compatibility(ATARI) */
4275 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4277 term
->wrapnext
= FALSE
;
4280 /* compatibility(ATARI) */
4281 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4284 /* compatibility(ATARI) */
4285 term
->curr_attr
|= ATTR_REVERSE
;
4288 /* compatibility(ATARI) */
4289 term
->curr_attr
&= ~ATTR_REVERSE
;
4291 case 'v': /* wrap Autowrap on - Wyse style */
4292 /* compatibility(ATARI) */
4295 case 'w': /* Autowrap off */
4296 /* compatibility(ATARI) */
4301 /* compatibility(OTHER) */
4302 term
->vt52_bold
= FALSE
;
4303 term
->curr_attr
= ATTR_DEFAULT
;
4304 set_erase_char(term
);
4307 /* compatibility(VI50) */
4308 term
->curr_attr
|= ATTR_UNDER
;
4311 /* compatibility(VI50) */
4312 term
->curr_attr
&= ~ATTR_UNDER
;
4315 /* compatibility(VI50) */
4316 term
->vt52_bold
= TRUE
;
4317 term
->curr_attr
|= ATTR_BOLD
;
4320 /* compatibility(VI50) */
4321 term
->vt52_bold
= FALSE
;
4322 term
->curr_attr
&= ~ATTR_BOLD
;
4328 term
->termstate
= VT52_Y2
;
4329 move(term
, term
->curs
.x
, c
- ' ', 0);
4332 term
->termstate
= TOPLEVEL
;
4333 move(term
, c
- ' ', term
->curs
.y
, 0);
4338 term
->termstate
= TOPLEVEL
;
4339 term
->curr_attr
&= ~ATTR_FGMASK
;
4340 term
->curr_attr
&= ~ATTR_BOLD
;
4341 term
->curr_attr
|= (c
& 0xF) << ATTR_FGSHIFT
;
4342 set_erase_char(term
);
4345 term
->termstate
= TOPLEVEL
;
4346 term
->curr_attr
&= ~ATTR_BGMASK
;
4347 term
->curr_attr
&= ~ATTR_BLINK
;
4348 term
->curr_attr
|= (c
& 0xF) << ATTR_BGSHIFT
;
4349 set_erase_char(term
);
4352 default: break; /* placate gcc warning about enum use */
4354 if (term
->selstate
!= NO_SELECTION
) {
4355 pos cursplus
= term
->curs
;
4357 check_selection(term
, term
->curs
, cursplus
);
4361 term_print_flush(term
);
4362 if (term
->cfg
.logflush
)
4363 logflush(term
->logctx
);
4367 * To prevent having to run the reasonably tricky bidi algorithm
4368 * too many times, we maintain a cache of the last lineful of data
4369 * fed to the algorithm on each line of the display.
4371 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4372 termchar
*lbefore
, int width
)
4376 if (!term
->pre_bidi_cache
)
4377 return FALSE
; /* cache doesn't even exist yet! */
4379 if (line
>= term
->bidi_cache_size
)
4380 return FALSE
; /* cache doesn't have this many lines */
4382 if (!term
->pre_bidi_cache
[line
].chars
)
4383 return FALSE
; /* cache doesn't contain _this_ line */
4385 if (term
->pre_bidi_cache
[line
].width
!= width
)
4386 return FALSE
; /* line is wrong width */
4388 for (i
= 0; i
< width
; i
++)
4389 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4390 return FALSE
; /* line doesn't match cache */
4392 return TRUE
; /* it didn't match. */
4395 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4396 termchar
*lafter
, bidi_char
*wcTo
,
4397 int width
, int size
)
4401 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4402 int j
= term
->bidi_cache_size
;
4403 term
->bidi_cache_size
= line
+1;
4404 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4405 term
->bidi_cache_size
,
4406 struct bidi_cache_entry
);
4407 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4408 term
->bidi_cache_size
,
4409 struct bidi_cache_entry
);
4410 while (j
< term
->bidi_cache_size
) {
4411 term
->pre_bidi_cache
[j
].chars
=
4412 term
->post_bidi_cache
[j
].chars
= NULL
;
4413 term
->pre_bidi_cache
[j
].width
=
4414 term
->post_bidi_cache
[j
].width
= -1;
4415 term
->pre_bidi_cache
[j
].forward
=
4416 term
->post_bidi_cache
[j
].forward
= NULL
;
4417 term
->pre_bidi_cache
[j
].backward
=
4418 term
->post_bidi_cache
[j
].backward
= NULL
;
4423 sfree(term
->pre_bidi_cache
[line
].chars
);
4424 sfree(term
->post_bidi_cache
[line
].chars
);
4425 sfree(term
->post_bidi_cache
[line
].forward
);
4426 sfree(term
->post_bidi_cache
[line
].backward
);
4428 term
->pre_bidi_cache
[line
].width
= width
;
4429 term
->pre_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4430 term
->post_bidi_cache
[line
].width
= width
;
4431 term
->post_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4432 term
->post_bidi_cache
[line
].forward
= snewn(width
, int);
4433 term
->post_bidi_cache
[line
].backward
= snewn(width
, int);
4435 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, size
* TSIZE
);
4436 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, size
* TSIZE
);
4437 memset(term
->post_bidi_cache
[line
].forward
, 0, width
* sizeof(int));
4438 memset(term
->post_bidi_cache
[line
].backward
, 0, width
* sizeof(int));
4440 for (i
= 0; i
< width
; i
++) {
4441 int p
= wcTo
[i
].index
;
4443 assert(0 <= p
&& p
< width
);
4445 term
->post_bidi_cache
[line
].backward
[i
] = p
;
4446 term
->post_bidi_cache
[line
].forward
[p
] = i
;
4451 * Prepare the bidi information for a screen line. Returns the
4452 * transformed list of termchars, or NULL if no transformation at
4453 * all took place (because bidi is disabled). If return was
4454 * non-NULL, auxiliary information such as the forward and reverse
4455 * mappings of permutation position are available in
4456 * term->post_bidi_cache[scr_y].*.
4458 static termchar
*term_bidi_line(Terminal
*term
, struct termline
*ldata
,
4464 /* Do Arabic shaping and bidi. */
4465 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4467 if (!term_bidi_cache_hit(term
, scr_y
, ldata
->chars
, term
->cols
)) {
4469 if (term
->wcFromTo_size
< term
->cols
) {
4470 term
->wcFromTo_size
= term
->cols
;
4471 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4473 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4477 for(it
=0; it
<term
->cols
; it
++)
4479 unsigned long uc
= (ldata
->chars
[it
].chr
);
4481 switch (uc
& CSET_MASK
) {
4483 if (!term
->cfg
.rawcnp
) {
4484 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4488 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4491 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4494 switch (uc
& CSET_MASK
) {
4496 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4499 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4503 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4505 term
->wcFrom
[it
].index
= it
;
4509 do_bidi(term
->wcFrom
, term
->cols
);
4511 /* this is saved iff done from inside the shaping */
4512 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4513 for(it
=0; it
<term
->cols
; it
++)
4514 term
->wcTo
[it
] = term
->wcFrom
[it
];
4516 if(!term
->cfg
.arabicshaping
)
4517 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4519 if (term
->ltemp_size
< ldata
->size
) {
4520 term
->ltemp_size
= ldata
->size
;
4521 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4525 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4527 for(it
=0; it
<term
->cols
; it
++)
4529 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4530 if (term
->ltemp
[it
].cc_next
)
4531 term
->ltemp
[it
].cc_next
-=
4532 it
- term
->wcTo
[it
].index
;
4534 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4535 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4537 term_bidi_cache_store(term
, scr_y
, ldata
->chars
,
4538 term
->ltemp
, term
->wcTo
,
4539 term
->cols
, ldata
->size
);
4541 lchars
= term
->ltemp
;
4543 lchars
= term
->post_bidi_cache
[scr_y
].chars
;
4553 * Given a context, update the window. Out of paranoia, we don't
4554 * allow WM_PAINT responses to do scrolling optimisations.
4556 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4558 int i
, j
, our_curs_y
, our_curs_x
;
4563 #ifdef OPTIMISE_SCROLL
4564 struct scrollregion
*sr
;
4565 #endif /* OPTIMISE_SCROLL */
4569 ch
= snewn(chlen
, wchar_t);
4571 newline
= snewn(term
->cols
, termchar
);
4573 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4576 * screen array, disptop, scrtop,
4578 * cfg.blinkpc, blink_is_real, tblinker,
4579 * curs.y, curs.x, cblinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4582 /* Has the cursor position or type changed ? */
4583 if (term
->cursor_on
) {
4584 if (term
->has_focus
) {
4585 if (term
->cblinker
|| !term
->cfg
.blink_cur
)
4586 cursor
= TATTR_ACTCURS
;
4590 cursor
= TATTR_PASCURS
;
4592 cursor
|= TATTR_RIGHTCURS
;
4595 our_curs_y
= term
->curs
.y
- term
->disptop
;
4598 * Adjust the cursor position:
4600 * - in the case where it's resting on the right-hand half
4601 * of a CJK wide character. xterm's behaviour here,
4602 * which seems adequate to me, is to display the cursor
4603 * covering the _whole_ character, exactly as if it were
4604 * one space to the left.
4606 termline
*ldata
= lineptr(term
->curs
.y
);
4609 our_curs_x
= term
->curs
.x
;
4611 if ( (lchars
= term_bidi_line(term
, ldata
, our_curs_y
)) != NULL
) {
4612 our_curs_x
= term
->post_bidi_cache
[our_curs_y
].forward
[our_curs_x
];
4614 lchars
= ldata
->chars
;
4616 if (our_curs_x
> 0 &&
4617 lchars
[our_curs_x
].chr
== UCSWIDE
)
4624 * If the cursor is not where it was last time we painted, and
4625 * its previous position is visible on screen, invalidate its
4626 * previous position.
4628 if (term
->dispcursy
>= 0 &&
4629 (term
->curstype
!= cursor
||
4630 term
->dispcursy
!= our_curs_y
||
4631 term
->dispcursx
!= our_curs_x
)) {
4632 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4635 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4636 dispcurs
[-1].attr
|= ATTR_INVALID
;
4637 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4638 dispcurs
[1].attr
|= ATTR_INVALID
;
4639 dispcurs
->attr
|= ATTR_INVALID
;
4643 term
->dispcursx
= term
->dispcursy
= -1;
4645 #ifdef OPTIMISE_SCROLL
4647 sr
= term
->scrollhead
;
4649 struct scrollregion
*next
= sr
->next
;
4650 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4654 term
->scrollhead
= term
->scrolltail
= NULL
;
4655 #endif /* OPTIMISE_SCROLL */
4657 /* The normal screen data */
4658 for (i
= 0; i
< term
->rows
; i
++) {
4661 int dirty_line
, dirty_run
, selected
;
4662 unsigned long attr
= 0, cset
= 0;
4663 int updated_line
= 0;
4666 int last_run_dirty
= 0;
4667 int laststart
, dirtyrect
;
4670 scrpos
.y
= i
+ term
->disptop
;
4671 ldata
= lineptr(scrpos
.y
);
4673 /* Do Arabic shaping and bidi. */
4674 lchars
= term_bidi_line(term
, ldata
, i
);
4676 backward
= term
->post_bidi_cache
[i
].backward
;
4678 lchars
= ldata
->chars
;
4683 * First loop: work along the line deciding what we want
4684 * each character cell to look like.
4686 for (j
= 0; j
< term
->cols
; j
++) {
4687 unsigned long tattr
, tchar
;
4688 termchar
*d
= lchars
+ j
;
4689 scrpos
.x
= backward ? backward
[j
] : j
;
4694 if (!term
->cfg
.ansi_colour
)
4695 tattr
= (tattr
& ~(ATTR_FGMASK
| ATTR_BGMASK
)) |
4696 ATTR_DEFFG
| ATTR_DEFBG
;
4698 if (!term
->cfg
.xterm_256_colour
) {
4700 colour
= (tattr
& ATTR_FGMASK
) >> ATTR_FGSHIFT
;
4701 if (colour
>= 16 && colour
< 256)
4702 tattr
= (tattr
&~ ATTR_FGMASK
) | ATTR_DEFFG
;
4703 colour
= (tattr
& ATTR_BGMASK
) >> ATTR_BGSHIFT
;
4704 if (colour
>= 16 && colour
< 256)
4705 tattr
= (tattr
&~ ATTR_BGMASK
) | ATTR_DEFBG
;
4708 switch (tchar
& CSET_MASK
) {
4710 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4713 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4716 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4719 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4722 /* Video reversing things */
4723 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4724 if (term
->seltype
== LEXICOGRAPHIC
)
4725 selected
= (posle(term
->selstart
, scrpos
) &&
4726 poslt(scrpos
, term
->selend
));
4728 selected
= (posPle(term
->selstart
, scrpos
) &&
4729 posPlt(scrpos
, term
->selend
));
4733 ^ (selected ? ATTR_REVERSE
: 0));
4735 /* 'Real' blinking ? */
4736 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4737 if (term
->has_focus
&& term
->tblinker
) {
4738 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4740 tattr
&= ~ATTR_BLINK
;
4744 * Check the font we'll _probably_ be using to see if
4745 * the character is wide when we don't want it to be.
4747 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4748 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4749 (ATTR_NARROW
| DATTR_MASK
))) {
4750 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4751 tattr
|= ATTR_NARROW
;
4752 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4753 tattr
|= ATTR_NARROW
;
4755 if (i
== our_curs_y
&& j
== our_curs_x
) {
4757 term
->curstype
= cursor
;
4758 term
->dispcursx
= j
;
4759 term
->dispcursy
= i
;
4763 newline
[j
].attr
= tattr
;
4764 newline
[j
].chr
= tchar
;
4765 /* Combining characters are still read from lchars */
4766 newline
[j
].cc_next
= 0;
4770 * Now loop over the line again, noting where things have
4773 * During this loop, we keep track of where we last saw
4774 * DATTR_STARTRUN. Any mismatch automatically invalidates
4775 * _all_ of the containing run that was last printed: that
4776 * is, any rectangle that was drawn in one go in the
4777 * previous update should be either left completely alone
4778 * or overwritten in its entirety. This, along with the
4779 * expectation that front ends clip all text runs to their
4780 * bounding rectangle, should solve any possible problems
4781 * with fonts that overflow their character cells.
4785 for (j
= 0; j
< term
->cols
; j
++) {
4786 if (term
->disptext
[i
]->chars
[j
].attr
& DATTR_STARTRUN
) {
4791 if (term
->disptext
[i
]->chars
[j
].chr
!= newline
[j
].chr
||
4792 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
)
4793 != newline
[j
].attr
) {
4796 for (k
= laststart
; k
< j
; k
++)
4797 term
->disptext
[i
]->chars
[k
].attr
|= ATTR_INVALID
;
4803 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
4807 * Finally, loop once more and actually do the drawing.
4809 dirty_run
= dirty_line
= (ldata
->lattr
!=
4810 term
->disptext
[i
]->lattr
);
4811 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4813 for (j
= 0; j
< term
->cols
; j
++) {
4814 unsigned long tattr
, tchar
;
4815 int break_run
, do_copy
;
4816 termchar
*d
= lchars
+ j
;
4818 tattr
= newline
[j
].attr
;
4819 tchar
= newline
[j
].chr
;
4821 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4824 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4826 /* Special hack for VT100 Linedraw glyphs */
4827 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4831 * Separate out sequences of characters that have the
4832 * same CSET, if that CSET is a magic one.
4834 if (CSET_OF(tchar
) != cset
)
4838 * Break on both sides of any combined-character cell.
4840 if (d
->cc_next
!= 0 ||
4841 (j
> 0 && d
[-1].cc_next
!= 0))
4844 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4845 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4846 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
) == tattr
)
4848 else if (!dirty_run
&& ccount
== 1)
4853 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4854 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
4856 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
4857 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
4865 cset
= CSET_OF(tchar
);
4866 if (term
->ucsdata
->dbcs_screenfont
)
4867 last_run_dirty
= dirty_run
;
4868 dirty_run
= dirty_line
;
4872 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4878 if (ccount
>= chlen
) {
4879 chlen
= ccount
+ 256;
4880 ch
= sresize(ch
, chlen
, wchar_t);
4882 ch
[ccount
++] = (wchar_t) tchar
;
4887 while (dd
->cc_next
) {
4888 unsigned long schar
;
4893 switch (schar
& CSET_MASK
) {
4895 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4898 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4901 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4905 if (ccount
>= chlen
) {
4906 chlen
= ccount
+ 256;
4907 ch
= sresize(ch
, chlen
, wchar_t);
4909 ch
[ccount
++] = (wchar_t) schar
;
4912 attr
|= TATTR_COMBINING
;
4916 copy_termchar(term
->disptext
[i
], j
, d
);
4917 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
4918 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
4920 term
->disptext
[i
]->chars
[j
].attr
|= DATTR_STARTRUN
;
4923 /* If it's a wide char step along to the next one. */
4924 if (tattr
& ATTR_WIDE
) {
4925 if (++j
< term
->cols
) {
4928 * By construction above, the cursor should not
4929 * be on the right-hand half of this character.
4932 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
4933 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
4935 copy_termchar(term
->disptext
[i
], j
, d
);
4939 if (dirty_run
&& ccount
> 0) {
4940 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
4942 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
4943 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
4957 * Invalidate the whole screen so it will be repainted in full.
4959 void term_invalidate(Terminal
*term
)
4963 for (i
= 0; i
< term
->rows
; i
++)
4964 for (j
= 0; j
< term
->cols
; j
++)
4965 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
4967 term_schedule_update(term
);
4971 * Paint the window in response to a WM_PAINT message.
4973 void term_paint(Terminal
*term
, Context ctx
,
4974 int left
, int top
, int right
, int bottom
, int immediately
)
4977 if (left
< 0) left
= 0;
4978 if (top
< 0) top
= 0;
4979 if (right
>= term
->cols
) right
= term
->cols
-1;
4980 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
4982 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
4983 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
4984 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
4985 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
4987 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
4988 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
4992 do_paint (term
, ctx
, FALSE
);
4994 term_schedule_update(term
);
4999 * Attempt to scroll the scrollback. The second parameter gives the
5000 * position we want to scroll to; the first is +1 to denote that
5001 * this position is relative to the beginning of the scrollback, -1
5002 * to denote it is relative to the end, and 0 to denote that it is
5003 * relative to the current position.
5005 void term_scroll(Terminal
*term
, int rel
, int where
)
5007 int sbtop
= -sblines(term
);
5008 #ifdef OPTIMISE_SCROLL
5009 int olddisptop
= term
->disptop
;
5011 #endif /* OPTIMISE_SCROLL */
5013 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
5014 if (term
->disptop
< sbtop
)
5015 term
->disptop
= sbtop
;
5016 if (term
->disptop
> 0)
5019 #ifdef OPTIMISE_SCROLL
5020 shift
= (term
->disptop
- olddisptop
);
5021 if (shift
< term
->rows
&& shift
> -term
->rows
)
5022 scroll_display(term
, 0, term
->rows
- 1, shift
);
5023 #endif /* OPTIMISE_SCROLL */
5027 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
5030 wchar_t *wbptr
; /* where next char goes within workbuf */
5032 int wblen
= 0; /* workbuf len */
5033 int buflen
; /* amount of memory allocated to workbuf */
5035 buflen
= 5120; /* Default size */
5036 workbuf
= snewn(buflen
, wchar_t);
5037 wbptr
= workbuf
; /* start filling here */
5038 old_top_x
= top
.x
; /* needed for rect==1 */
5040 while (poslt(top
, bottom
)) {
5042 termline
*ldata
= lineptr(top
.y
);
5046 * nlpos will point at the maximum position on this line we
5047 * should copy up to. So we start it at the end of the
5051 nlpos
.x
= term
->cols
;
5054 * ... move it backwards if there's unused space at the end
5055 * of the line (and also set `nl' if this is the case,
5056 * because in normal selection mode this means we need a
5057 * newline at the end)...
5059 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5060 while (IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
5061 !ldata
->chars
[nlpos
.x
- 1].cc_next
&&
5064 if (poslt(nlpos
, bottom
))
5066 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
5067 /* Ignore the last char on the line in a WRAPPED2 line. */
5072 * ... and then clip it to the terminal x coordinate if
5073 * we're doing rectangular selection. (In this case we
5074 * still did the above, so that copying e.g. the right-hand
5075 * column from a table doesn't fill with spaces on the
5079 if (nlpos
.x
> bottom
.x
)
5081 nl
= (top
.y
< bottom
.y
);
5084 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
5087 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
5089 wchar_t cbuf
[16], *p
;
5093 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
5099 int uc
= ldata
->chars
[x
].chr
;
5101 switch (uc
& CSET_MASK
) {
5103 if (!term
->cfg
.rawcnp
) {
5104 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5108 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5111 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5114 switch (uc
& CSET_MASK
) {
5116 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5119 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5123 set
= (uc
& CSET_MASK
);
5124 c
= (uc
& ~CSET_MASK
);
5128 if (DIRECT_FONT(uc
)) {
5129 if (c
>= ' ' && c
!= 0x7F) {
5133 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
5135 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
5136 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
5140 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
5144 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
5151 for (p
= cbuf
; *p
; p
++) {
5152 /* Enough overhead for trailing NL and nul */
5153 if (wblen
>= buflen
- 16) {
5155 workbuf
= sresize(workbuf
, buflen
, wchar_t);
5156 wbptr
= workbuf
+ wblen
;
5162 if (ldata
->chars
[x
].cc_next
)
5163 x
+= ldata
->chars
[x
].cc_next
;
5171 for (i
= 0; i
< sel_nl_sz
; i
++) {
5173 *wbptr
++ = sel_nl
[i
];
5177 top
.x
= rect ? old_top_x
: 0;
5181 #if SELECTION_NUL_TERMINATED
5185 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
5186 if (buflen
> 0) /* indicates we allocated this buffer */
5190 void term_copyall(Terminal
*term
)
5194 tree234
*screen
= term
->screen
;
5195 top
.y
= -sblines(term
);
5197 bottom
.y
= find_last_nonempty_line(term
, screen
);
5198 bottom
.x
= term
->cols
;
5199 clipme(term
, top
, bottom
, 0, TRUE
);
5203 * The wordness array is mainly for deciding the disposition of the
5204 * US-ASCII characters.
5206 static int wordtype(Terminal
*term
, int uc
)
5209 int start
, end
, ctype
;
5211 static const struct ucsword ucs_words
[] = {
5217 0x037e, 0x037e, 1}, /* Greek question mark */
5219 0x0387, 0x0387, 1}, /* Greek ano teleia */
5221 0x055a, 0x055f, 1}, /* Armenian punctuation */
5223 0x0589, 0x0589, 1}, /* Armenian full stop */
5225 0x0700, 0x070d, 1}, /* Syriac punctuation */
5227 0x104a, 0x104f, 1}, /* Myanmar punctuation */
5229 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
5231 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
5233 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
5235 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
5237 0x1800, 0x180a, 1}, /* Mongolian punctuation */
5239 0x2000, 0x200a, 0}, /* Various spaces */
5241 0x2070, 0x207f, 2}, /* superscript */
5243 0x2080, 0x208f, 2}, /* subscript */
5245 0x200b, 0x27ff, 1}, /* punctuation and symbols */
5247 0x3000, 0x3000, 0}, /* ideographic space */
5249 0x3001, 0x3020, 1}, /* ideographic punctuation */
5251 0x303f, 0x309f, 3}, /* Hiragana */
5253 0x30a0, 0x30ff, 3}, /* Katakana */
5255 0x3300, 0x9fff, 3}, /* CJK Ideographs */
5257 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5259 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5261 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5263 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5265 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5267 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5269 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5271 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5275 const struct ucsword
*wptr
;
5277 switch (uc
& CSET_MASK
) {
5279 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5282 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5285 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5288 switch (uc
& CSET_MASK
) {
5290 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5293 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5297 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5298 * fail as there's such a thing as a double width space. :-(
5300 if (term
->ucsdata
->dbcs_screenfont
&&
5301 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5305 return term
->wordness
[uc
];
5307 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5308 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5316 * Spread the selection outwards according to the selection mode.
5318 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5322 int topy
= -sblines(term
);
5324 ldata
= lineptr(p
.y
);
5326 switch (term
->selmode
) {
5329 * In this mode, every character is a separate unit, except
5330 * for runs of spaces at the end of a non-wrapping line.
5332 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5333 termchar
*q
= ldata
->chars
+ term
->cols
;
5334 while (q
> ldata
->chars
&&
5335 IS_SPACE_CHR(q
[-1].chr
) && !q
[-1].cc_next
)
5337 if (q
== ldata
->chars
+ term
->cols
)
5339 if (p
.x
>= q
- ldata
->chars
)
5340 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5345 * In this mode, the units are maximal runs of characters
5346 * whose `wordness' has the same value.
5348 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5351 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5352 term
->cols
-1 : term
->cols
);
5353 if (p
.x
< maxcols
-1) {
5354 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5359 if (ldata
->lattr
& LATTR_WRAPPED
) {
5361 ldata2
= lineptr(p
.y
+1);
5362 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5379 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5388 ldata2
= lineptr(p
.y
-1);
5389 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5390 term
->cols
-1 : term
->cols
);
5391 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5392 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5410 * In this mode, every line is a unit.
5412 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5420 static void sel_spread(Terminal
*term
)
5422 if (term
->seltype
== LEXICOGRAPHIC
) {
5423 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5424 decpos(term
->selend
);
5425 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5426 incpos(term
->selend
);
5430 void term_do_paste(Terminal
*term
)
5435 get_clip(term
->frontend
, &data
, &len
);
5436 if (data
&& len
> 0) {
5439 term_seen_key_event(term
); /* pasted data counts */
5441 if (term
->paste_buffer
)
5442 sfree(term
->paste_buffer
);
5443 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5444 term
->paste_buffer
= snewn(len
, wchar_t);
5447 while (p
< data
+ len
) {
5448 while (p
< data
+ len
&&
5449 !(p
<= data
+ len
- sel_nl_sz
&&
5450 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5455 for (i
= 0; i
< p
- q
; i
++) {
5456 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5460 if (p
<= data
+ len
- sel_nl_sz
&&
5461 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5462 term
->paste_buffer
[term
->paste_len
++] = '\015';
5468 /* Assume a small paste will be OK in one go. */
5469 if (term
->paste_len
< 256) {
5471 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5472 if (term
->paste_buffer
)
5473 sfree(term
->paste_buffer
);
5474 term
->paste_buffer
= 0;
5475 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5478 get_clip(term
->frontend
, NULL
, NULL
);
5481 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5482 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5486 int raw_mouse
= (term
->xterm_mouse
&&
5487 !term
->cfg
.no_mouse_rep
&&
5488 !(term
->cfg
.mouse_override
&& shift
));
5489 int default_seltype
;
5493 if (a
== MA_DRAG
&& !raw_mouse
)
5494 term_scroll(term
, 0, -1);
5496 if (y
>= term
->rows
) {
5498 if (a
== MA_DRAG
&& !raw_mouse
)
5499 term_scroll(term
, 0, +1);
5508 if (x
>= term
->cols
)
5511 selpoint
.y
= y
+ term
->disptop
;
5512 ldata
= lineptr(selpoint
.y
);
5514 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5518 * Transform x through the bidi algorithm to find the _logical_
5519 * click point from the physical one.
5521 if (term_bidi_line(term
, ldata
, y
) != NULL
) {
5522 x
= term
->post_bidi_cache
[y
].backward
[x
];
5529 int encstate
= 0, r
, c
;
5536 encstate
= 0x20; /* left button down */
5547 case MBT_WHEEL_DOWN
:
5550 default: break; /* placate gcc warning about enum use */
5554 if (term
->xterm_mouse
== 1)
5560 term
->mouse_is_down
= 0;
5563 if (term
->mouse_is_down
== braw
)
5565 term
->mouse_is_down
= braw
;
5567 default: break; /* placate gcc warning about enum use */
5576 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5577 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5583 * Set the selection type (rectangular or normal) at the start
5584 * of a selection attempt, from the state of Alt.
5586 if (!alt
^ !term
->cfg
.rect_select
)
5587 default_seltype
= RECTANGULAR
;
5589 default_seltype
= LEXICOGRAPHIC
;
5591 if (term
->selstate
== NO_SELECTION
) {
5592 term
->seltype
= default_seltype
;
5595 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5597 term
->selstate
= ABOUT_TO
;
5598 term
->seltype
= default_seltype
;
5599 term
->selanchor
= selpoint
;
5600 term
->selmode
= SM_CHAR
;
5601 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5603 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5604 term
->selstate
= DRAGGING
;
5605 term
->selstart
= term
->selanchor
= selpoint
;
5606 term
->selend
= term
->selstart
;
5607 incpos(term
->selend
);
5609 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5610 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5611 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5613 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5614 term
->selstate
== SELECTED
) {
5615 if (term
->seltype
== LEXICOGRAPHIC
) {
5617 * For normal selection, we extend by moving
5618 * whichever end of the current selection is closer
5621 if (posdiff(selpoint
, term
->selstart
) <
5622 posdiff(term
->selend
, term
->selstart
) / 2) {
5623 term
->selanchor
= term
->selend
;
5624 decpos(term
->selanchor
);
5626 term
->selanchor
= term
->selstart
;
5630 * For rectangular selection, we have a choice of
5631 * _four_ places to put selanchor and selpoint: the
5632 * four corners of the selection.
5634 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5635 term
->selanchor
.x
= term
->selend
.x
-1;
5637 term
->selanchor
.x
= term
->selstart
.x
;
5639 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5640 term
->selanchor
.y
= term
->selend
.y
;
5642 term
->selanchor
.y
= term
->selstart
.y
;
5644 term
->selstate
= DRAGGING
;
5646 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5647 term
->selanchor
= selpoint
;
5648 term
->selstate
= DRAGGING
;
5649 if (term
->seltype
== LEXICOGRAPHIC
) {
5651 * For normal selection, we set (selstart,selend) to
5652 * (selpoint,selanchor) in some order.
5654 if (poslt(selpoint
, term
->selanchor
)) {
5655 term
->selstart
= selpoint
;
5656 term
->selend
= term
->selanchor
;
5657 incpos(term
->selend
);
5659 term
->selstart
= term
->selanchor
;
5660 term
->selend
= selpoint
;
5661 incpos(term
->selend
);
5665 * For rectangular selection, we may need to
5666 * interchange x and y coordinates (if the user has
5667 * dragged in the -x and +y directions, or vice versa).
5669 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5670 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5671 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5672 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5675 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5677 if (term
->selstate
== DRAGGING
) {
5679 * We've completed a selection. We now transfer the
5680 * data to the clipboard.
5682 clipme(term
, term
->selstart
, term
->selend
,
5683 (term
->seltype
== RECTANGULAR
), FALSE
);
5684 term
->selstate
= SELECTED
;
5686 term
->selstate
= NO_SELECTION
;
5687 } else if (bcooked
== MBT_PASTE
5689 #if MULTICLICK_ONLY_EVENT
5690 || a
== MA_2CLK
|| a
== MA_3CLK
5693 request_paste(term
->frontend
);
5699 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5700 unsigned int modifiers
, unsigned int flags
)
5704 int prependesc
= FALSE
;
5708 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5709 for (i
= 0; i
< tlen
; i
++)
5710 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5711 fprintf(stderr
, "\n");
5715 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5718 /* Currently, Meta always just prefixes everything with ESC. */
5719 if (modifiers
& PKM_META
)
5721 modifiers
&= ~PKM_META
;
5724 * Alt is only used for Alt+keypad, which isn't supported yet, so
5727 modifiers
&= ~PKM_ALT
;
5729 /* Standard local function keys */
5730 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5732 if (keysym
== PK_PAGEUP
)
5733 /* scroll up one page */;
5734 if (keysym
== PK_PAGEDOWN
)
5735 /* scroll down on page */;
5736 if (keysym
== PK_INSERT
)
5737 term_do_paste(term
);
5740 if (keysym
== PK_PAGEUP
)
5741 /* scroll up one line */;
5742 if (keysym
== PK_PAGEDOWN
)
5743 /* scroll down one line */;
5744 /* Control-Numlock for app-keypad mode switch */
5745 if (keysym
== PK_PF1
)
5746 term
->app_keypad_keys
^= 1;
5750 if (modifiers
& PKM_ALT
) {
5751 /* Alt+F4 (close) */
5752 /* Alt+Return (full screen) */
5753 /* Alt+Space (system menu) */
5756 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5757 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5758 /* ASCII chars + Control */
5759 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5760 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5764 * Control-2 should return ^@ (0x00), Control-6 should return
5765 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5766 * the DOS keyboard handling did it, and we have nothing better
5767 * to do with the key combo in question, we'll also map
5768 * Control-Backquote to ^\ (0x1C).
5771 case ' ': text
[0] = 0x00; break;
5772 case '-': text
[0] = 0x1f; break;
5773 case '/': text
[0] = 0x1f; break;
5774 case '2': text
[0] = 0x00; break;
5775 case '3': text
[0] = 0x1b; break;
5776 case '4': text
[0] = 0x1c; break;
5777 case '5': text
[0] = 0x1d; break;
5778 case '6': text
[0] = 0x1e; break;
5779 case '7': text
[0] = 0x1f; break;
5780 case '8': text
[0] = 0x7f; break;
5781 case '`': text
[0] = 0x1c; break;
5786 /* Nethack keypad */
5787 if (term
->cfg
.nethack_keypad
) {
5790 case PK_KP1
: c
= 'b'; break;
5791 case PK_KP2
: c
= 'j'; break;
5792 case PK_KP3
: c
= 'n'; break;
5793 case PK_KP4
: c
= 'h'; break;
5794 case PK_KP5
: c
= '.'; break;
5795 case PK_KP6
: c
= 'l'; break;
5796 case PK_KP7
: c
= 'y'; break;
5797 case PK_KP8
: c
= 'k'; break;
5798 case PK_KP9
: c
= 'u'; break;
5799 default: break; /* else gcc warns `enum value not used' */
5803 if (modifiers
& PKM_CONTROL
)
5805 else if (modifiers
& PKM_SHIFT
)
5813 /* Numeric Keypad */
5814 if (PK_ISKEYPAD(keysym
)) {
5818 * In VT400 mode, PFn always emits an escape sequence. In
5819 * Linux and tilde modes, this only happens in app keypad mode.
5821 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5822 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5823 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5824 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5826 case PK_PF1
: xkey
= 'P'; break;
5827 case PK_PF2
: xkey
= 'Q'; break;
5828 case PK_PF3
: xkey
= 'R'; break;
5829 case PK_PF4
: xkey
= 'S'; break;
5830 default: break; /* else gcc warns `enum value not used' */
5833 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5835 case PK_KP0
: xkey
= 'p'; break;
5836 case PK_KP1
: xkey
= 'q'; break;
5837 case PK_KP2
: xkey
= 'r'; break;
5838 case PK_KP3
: xkey
= 's'; break;
5839 case PK_KP4
: xkey
= 't'; break;
5840 case PK_KP5
: xkey
= 'u'; break;
5841 case PK_KP6
: xkey
= 'v'; break;
5842 case PK_KP7
: xkey
= 'w'; break;
5843 case PK_KP8
: xkey
= 'x'; break;
5844 case PK_KP9
: xkey
= 'y'; break;
5845 case PK_KPDECIMAL
: xkey
= 'n'; break;
5846 case PK_KPENTER
: xkey
= 'M'; break;
5847 default: break; /* else gcc warns `enum value not used' */
5849 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5851 * xterm can't see the layout of the keypad, so it has
5852 * to rely on the X keysyms returned by the keys.
5853 * Hence, we look at the strings here, not the PuTTY
5854 * keysyms (which describe the layout).
5858 if (modifiers
& PKM_SHIFT
)
5863 case '/': xkey
= 'o'; break;
5864 case '*': xkey
= 'j'; break;
5865 case '-': xkey
= 'm'; break;
5869 * In all other modes, we try to retain the layout of
5870 * the DEC keypad in application mode.
5874 /* This key covers the '-' and ',' keys on a VT220 */
5875 if (modifiers
& PKM_SHIFT
)
5876 xkey
= 'm'; /* VT220 '-' */
5878 xkey
= 'l'; /* VT220 ',' */
5880 case PK_KPMINUS
: xkey
= 'm'; break;
5881 case PK_KPCOMMA
: xkey
= 'l'; break;
5882 default: break; /* else gcc warns `enum value not used' */
5887 if (term
->vt52_mode
) {
5888 if (xkey
>= 'P' && xkey
<= 'S')
5889 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5891 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
5893 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5896 /* Not in application mode -- treat the number pad as arrow keys? */
5897 if ((flags
& PKF_NUMLOCK
) == 0) {
5899 case PK_KP0
: keysym
= PK_INSERT
; break;
5900 case PK_KP1
: keysym
= PK_END
; break;
5901 case PK_KP2
: keysym
= PK_DOWN
; break;
5902 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
5903 case PK_KP4
: keysym
= PK_LEFT
; break;
5904 case PK_KP5
: keysym
= PK_REST
; break;
5905 case PK_KP6
: keysym
= PK_RIGHT
; break;
5906 case PK_KP7
: keysym
= PK_HOME
; break;
5907 case PK_KP8
: keysym
= PK_UP
; break;
5908 case PK_KP9
: keysym
= PK_PAGEUP
; break;
5909 default: break; /* else gcc warns `enum value not used' */
5914 /* Miscellaneous keys */
5921 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
5922 else if (modifiers
== PKM_SHIFT
)
5923 /* We do the opposite of what is configured */
5924 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
5930 else if (modifiers
== PKM_SHIFT
)
5931 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
5934 /* XXX window.c has ctrl+shift+space sending 0xa0 */
5936 if (modifiers
== PKM_CONTROL
)
5941 case PK_KPENTER
: /* Odd keypad modes handled above */
5942 if (modifiers
== 0) {
5944 if (term
->cr_lf_return
)
5948 default: break; /* else gcc warns `enum value not used' */
5951 /* SCO function keys and editing keys */
5952 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
5953 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
5954 static char const codes
[] =
5955 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
5956 int index
= keysym
- PK_F1
;
5958 if (modifiers
& PKM_SHIFT
) index
+= 12;
5959 if (modifiers
& PKM_CONTROL
) index
+= 24;
5960 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
5963 if (PK_ISEDITING(keysym
)) {
5967 case PK_DELETE
: *p
++ = 0x7f; goto done
;
5968 case PK_HOME
: xkey
= 'H'; break;
5969 case PK_INSERT
: xkey
= 'L'; break;
5970 case PK_END
: xkey
= 'F'; break;
5971 case PK_PAGEUP
: xkey
= 'I'; break;
5972 case PK_PAGEDOWN
: xkey
= 'G'; break;
5973 default: break; /* else gcc warns `enum value not used' */
5975 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5979 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
5982 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
5983 /* Xterm shuffles these keys, apparently. */
5985 case PK_HOME
: keysym
= PK_INSERT
; break;
5986 case PK_INSERT
: keysym
= PK_HOME
; break;
5987 case PK_DELETE
: keysym
= PK_END
; break;
5988 case PK_END
: keysym
= PK_PAGEUP
; break;
5989 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
5990 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
5991 default: break; /* else gcc warns `enum value not used' */
5996 if (term
->cfg
.rxvt_homeend
&&
5997 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
5998 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
6002 if (term
->vt52_mode
) {
6006 * A real VT52 doesn't have these, and a VT220 doesn't
6007 * send anything for them in VT52 mode.
6010 case PK_HOME
: xkey
= 'H'; break;
6011 case PK_INSERT
: xkey
= 'L'; break;
6012 case PK_DELETE
: xkey
= 'M'; break;
6013 case PK_END
: xkey
= 'E'; break;
6014 case PK_PAGEUP
: xkey
= 'I'; break;
6015 case PK_PAGEDOWN
: xkey
= 'G'; break;
6016 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
6018 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6023 case PK_HOME
: code
= 1; break;
6024 case PK_INSERT
: code
= 2; break;
6025 case PK_DELETE
: code
= 3; break;
6026 case PK_END
: code
= 4; break;
6027 case PK_PAGEUP
: code
= 5; break;
6028 case PK_PAGEDOWN
: code
= 6; break;
6029 default: code
= 0; break; /* else gcc warns `enum value not used' */
6031 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
6035 if (PK_ISFKEY(keysym
)) {
6036 /* Map Shift+F1-F10 to F11-F20 */
6037 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
6039 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
6041 /* XXX This overrides the XTERM/VT52 mode below */
6043 if (keysym
>= PK_F6
) offt
++;
6044 if (keysym
>= PK_F12
) offt
++;
6045 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
6046 'P' + keysym
- PK_F1
- offt
);
6049 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
6050 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
6053 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
6054 if (term
->vt52_mode
)
6055 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
6057 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
6060 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
6064 if (PK_ISCURSOR(keysym
)) {
6068 case PK_UP
: xkey
= 'A'; break;
6069 case PK_DOWN
: xkey
= 'B'; break;
6070 case PK_RIGHT
: xkey
= 'C'; break;
6071 case PK_LEFT
: xkey
= 'D'; break;
6072 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
6073 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
6075 if (term
->vt52_mode
)
6076 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6078 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
6080 /* Useful mapping of Ctrl-arrows */
6081 if (modifiers
== PKM_CONTROL
)
6085 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
6087 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
6093 if (p
> output
|| tlen
> 0) {
6095 * Interrupt an ongoing paste. I'm not sure
6096 * this is sensible, but for the moment it's
6097 * preferable to having to faff about buffering
6103 * We need not bother about stdin backlogs
6104 * here, because in GUI PuTTY we can't do
6105 * anything about it anyway; there's no means
6106 * of asking Windows to hold off on KEYDOWN
6107 * messages. We _have_ to buffer everything
6110 term_seen_key_event(term
);
6114 fprintf(stderr
, "sending ESC\n");
6116 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
6121 fprintf(stderr
, "sending %d bytes:", p
- output
);
6122 for (i
= 0; i
< p
- output
; i
++)
6123 fprintf(stderr
, " %02x", output
[i
]);
6124 fprintf(stderr
, "\n");
6126 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
6127 } else if (tlen
> 0) {
6129 fprintf(stderr
, "sending %d unichars:", tlen
);
6130 for (i
= 0; i
< tlen
; i
++)
6131 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
6132 fprintf(stderr
, "\n");
6134 luni_send(term
->ldisc
, text
, tlen
, 1);
6139 void term_nopaste(Terminal
*term
)
6141 if (term
->paste_len
== 0)
6143 sfree(term
->paste_buffer
);
6144 term
->paste_buffer
= NULL
;
6145 term
->paste_len
= 0;
6148 int term_paste_pending(Terminal
*term
)
6150 return term
->paste_len
!= 0;
6153 void term_paste(Terminal
*term
)
6155 long now
, paste_diff
;
6157 if (term
->paste_len
== 0)
6160 /* Don't wait forever to paste */
6161 if (term
->paste_hold
) {
6162 now
= GETTICKCOUNT();
6163 paste_diff
= now
- term
->last_paste
;
6164 if (paste_diff
>= 0 && paste_diff
< 450)
6167 term
->paste_hold
= 0;
6169 while (term
->paste_pos
< term
->paste_len
) {
6171 while (n
+ term
->paste_pos
< term
->paste_len
) {
6172 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
6176 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
6177 term
->paste_pos
+= n
;
6179 if (term
->paste_pos
< term
->paste_len
) {
6180 term
->paste_hold
= 1;
6184 sfree(term
->paste_buffer
);
6185 term
->paste_buffer
= NULL
;
6186 term
->paste_len
= 0;
6189 static void deselect(Terminal
*term
)
6191 term
->selstate
= NO_SELECTION
;
6192 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
6195 void term_deselect(Terminal
*term
)
6201 int term_ldisc(Terminal
*term
, int option
)
6203 if (option
== LD_ECHO
)
6204 return term
->term_echoing
;
6205 if (option
== LD_EDIT
)
6206 return term
->term_editing
;
6210 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
6212 bufchain_add(&term
->inbuf
, data
, len
);
6214 if (!term
->in_term_out
) {
6215 term
->in_term_out
= TRUE
;
6216 term_reset_cblink(term
);
6218 * During drag-selects, we do not process terminal input,
6219 * because the user will want the screen to hold still to
6222 if (term
->selstate
!= DRAGGING
)
6224 term
->in_term_out
= FALSE
;
6228 * term_out() always completely empties inbuf. Therefore,
6229 * there's no reason at all to return anything other than zero
6230 * from this function, because there _can't_ be a question of
6231 * the remote side needing to wait until term_out() has cleared
6234 * This is a slightly suboptimal way to deal with SSH2 - in
6235 * principle, the window mechanism would allow us to continue
6236 * to accept data on forwarded ports and X connections even
6237 * while the terminal processing was going slowly - but we
6238 * can't do the 100% right thing without moving the terminal
6239 * processing into a separate thread, and that might hurt
6240 * portability. So we manage stdout buffering the old SSH1 way:
6241 * if the terminal processing goes slowly, the whole SSH
6242 * connection stops accepting data until it's ready.
6244 * In practice, I can't imagine this causing serious trouble.
6249 void term_provide_logctx(Terminal
*term
, void *logctx
)
6251 term
->logctx
= logctx
;
6254 void term_set_focus(Terminal
*term
, int has_focus
)
6256 term
->has_focus
= has_focus
;
6257 term_schedule_cblink(term
);