14 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
15 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
16 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
17 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
19 /* Product-order comparisons for rectangular block selection. */
20 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
21 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
23 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
24 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
28 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
29 #define CL_VT100 0x0002 /* VT100 */
30 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
31 #define CL_VT102 0x0008 /* VT102 */
32 #define CL_VT220 0x0010 /* VT220 */
33 #define CL_VT320 0x0020 /* VT320 */
34 #define CL_VT420 0x0040 /* VT420 */
35 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
36 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
37 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
38 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
39 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
41 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
42 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
43 #define TM_VT102 (TM_VT100AVO|CL_VT102)
44 #define TM_VT220 (TM_VT102|CL_VT220)
45 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
46 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
48 #define TM_PUTTY (0xFFFF)
50 #define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
51 #define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
52 #define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
53 #define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
55 #define compatibility(x) \
56 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
57 term->termstate=TOPLEVEL; \
60 #define compatibility2(x,y) \
61 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
62 term->termstate=TOPLEVEL; \
66 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
68 char *EMPTY_WINDOW_TITLE
= "";
70 const char sco2ansicolour
[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
72 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
73 const wchar_t sel_nl
[] = SEL_NL
;
76 * Fetch the character at a particular position in a line array,
77 * for purposes of `wordtype'. The reason this isn't just a simple
78 * array reference is that if the character we find is UCSWIDE,
79 * then we must look one space further to the left.
81 #define UCSGET(a, x) \
82 ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
85 * Detect the various aliases of U+0020 SPACE.
87 #define IS_SPACE_CHR(chr) \
88 ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
93 #define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
96 * Internal prototypes.
98 static void resizeline(Terminal
*, termline
*, int);
99 static termline
*lineptr(Terminal
*, int, int, int);
100 static void unlineptr(termline
*);
101 static void do_paint(Terminal
*, Context
, int);
102 static void erase_lots(Terminal
*, int, int, int);
103 static int find_last_nonempty_line(Terminal
*, tree234
*);
104 static void swap_screen(Terminal
*, int, int, int);
105 static void update_sbar(Terminal
*);
106 static void deselect(Terminal
*);
107 static void term_print_finish(Terminal
*);
108 static void scroll(Terminal
*, int, int, int, int);
109 #ifdef OPTIMISE_SCROLL
110 static void scroll_display(Terminal
*, int, int, int);
111 #endif /* OPTIMISE_SCROLL */
113 static termline
*newline(Terminal
*term
, int cols
, int bce
)
118 line
= snew(termline
);
119 line
->chars
= snewn(cols
, termchar
);
120 for (j
= 0; j
< cols
; j
++)
121 line
->chars
[j
] = (bce ? term
->erase_char
: term
->basic_erase_char
);
122 line
->cols
= line
->size
= cols
;
123 line
->lattr
= LATTR_NORM
;
124 line
->temporary
= FALSE
;
130 static void freeline(termline
*line
)
138 static void unlineptr(termline
*line
)
146 * Diagnostic function: verify that a termline has a correct
147 * combining character structure.
149 * This is a performance-intensive check, so it's no longer enabled
152 static void cc_check(termline
*line
)
154 unsigned char *flags
;
157 assert(line
->size
>= line
->cols
);
159 flags
= snewn(line
->size
, unsigned char);
161 for (i
= 0; i
< line
->size
; i
++)
162 flags
[i
] = (i
< line
->cols
);
164 for (i
= 0; i
< line
->cols
; i
++) {
166 while (line
->chars
[j
].cc_next
) {
167 j
+= line
->chars
[j
].cc_next
;
168 assert(j
>= line
->cols
&& j
< line
->size
);
177 assert(j
>= line
->cols
&& j
< line
->size
);
180 if (line
->chars
[j
].cc_next
)
181 j
+= line
->chars
[j
].cc_next
;
188 for (i
= 0; i
< line
->size
; i
++)
189 j
+= (flags
[i
] != 0);
191 assert(j
== line
->size
);
198 * Add a combining character to a character cell.
200 static void add_cc(termline
*line
, int col
, unsigned long chr
)
204 assert(col
>= 0 && col
< line
->cols
);
207 * Start by extending the cols array if the free list is empty.
209 if (!line
->cc_free
) {
211 line
->size
+= 16 + (line
->size
- line
->cols
) / 2;
212 line
->chars
= sresize(line
->chars
, line
->size
, termchar
);
214 while (n
< line
->size
) {
215 if (n
+1 < line
->size
)
216 line
->chars
[n
].cc_next
= 1;
218 line
->chars
[n
].cc_next
= 0;
224 * Now walk the cc list of the cell in question.
226 while (line
->chars
[col
].cc_next
)
227 col
+= line
->chars
[col
].cc_next
;
230 * `col' now points at the last cc currently in this cell; so
231 * we simply add another one.
233 newcc
= line
->cc_free
;
234 if (line
->chars
[newcc
].cc_next
)
235 line
->cc_free
= newcc
+ line
->chars
[newcc
].cc_next
;
238 line
->chars
[newcc
].cc_next
= 0;
239 line
->chars
[newcc
].chr
= chr
;
240 line
->chars
[col
].cc_next
= newcc
- col
;
248 * Clear the combining character list in a character cell.
250 static void clear_cc(termline
*line
, int col
)
252 int oldfree
, origcol
= col
;
254 assert(col
>= 0 && col
< line
->cols
);
256 if (!line
->chars
[col
].cc_next
)
257 return; /* nothing needs doing */
259 oldfree
= line
->cc_free
;
260 line
->cc_free
= col
+ line
->chars
[col
].cc_next
;
261 while (line
->chars
[col
].cc_next
)
262 col
+= line
->chars
[col
].cc_next
;
264 line
->chars
[col
].cc_next
= oldfree
- col
;
266 line
->chars
[col
].cc_next
= 0;
268 line
->chars
[origcol
].cc_next
= 0;
276 * Compare two character cells for equality. Special case required
277 * in do_paint() where we override what we expect the chr and attr
280 static int termchars_equal_override(termchar
*a
, termchar
*b
,
281 unsigned long bchr
, unsigned long battr
)
286 if ((a
->attr
&~ DATTR_MASK
) != (battr
&~ DATTR_MASK
))
288 while (a
->cc_next
|| b
->cc_next
) {
289 if (!a
->cc_next
|| !b
->cc_next
)
290 return FALSE
; /* one cc-list ends, other does not */
293 if (a
->chr
!= b
->chr
)
299 static int termchars_equal(termchar
*a
, termchar
*b
)
301 return termchars_equal_override(a
, b
, b
->chr
, b
->attr
);
305 * Copy a character cell. (Requires a pointer to the destination
306 * termline, so as to access its free list.)
308 static void copy_termchar(termline
*destline
, int x
, termchar
*src
)
310 clear_cc(destline
, x
);
312 destline
->chars
[x
] = *src
; /* copy everything except cc-list */
313 destline
->chars
[x
].cc_next
= 0; /* and make sure this is zero */
315 while (src
->cc_next
) {
317 add_cc(destline
, x
, src
->chr
);
326 * Move a character cell within its termline.
328 static void move_termchar(termline
*line
, termchar
*dest
, termchar
*src
)
330 /* First clear the cc list from the original char, just in case. */
331 clear_cc(line
, dest
- line
->chars
);
333 /* Move the character cell and adjust its cc_next. */
334 *dest
= *src
; /* copy everything except cc-list */
336 dest
->cc_next
= src
->cc_next
- (dest
-src
);
338 /* Ensure the original cell doesn't have a cc list. */
347 * Compress and decompress a termline into an RLE-based format for
348 * storing in scrollback. (Since scrollback almost never needs to
349 * be modified and exists in huge quantities, this is a sensible
350 * tradeoff, particularly since it allows us to continue adding
351 * features to the main termchar structure without proportionally
352 * bloating the terminal emulator's memory footprint unless those
353 * features are in constant use.)
359 static void add(struct buf
*b
, unsigned char c
)
361 if (b
->len
>= b
->size
) {
362 b
->size
= (b
->len
* 3 / 2) + 512;
363 b
->data
= sresize(b
->data
, b
->size
, unsigned char);
365 b
->data
[b
->len
++] = c
;
367 static int get(struct buf
*b
)
369 return b
->data
[b
->len
++];
371 static void makerle(struct buf
*b
, termline
*ldata
,
372 void (*makeliteral
)(struct buf
*b
, termchar
*c
,
373 unsigned long *state
))
375 int hdrpos
, hdrsize
, n
, prevlen
, prevpos
, thislen
, thispos
, prev2
;
376 termchar
*c
= ldata
->chars
;
377 unsigned long state
= 0, oldstate
;
384 prevlen
= prevpos
= 0;
389 makeliteral(b
, c
++, &state
);
390 thislen
= b
->len
- thispos
;
391 if (thislen
== prevlen
&&
392 !memcmp(b
->data
+ prevpos
, b
->data
+ thispos
, thislen
)) {
394 * This literal precisely matches the previous one.
395 * Turn it into a run if it's worthwhile.
397 * With one-byte literals, it costs us two bytes to
398 * encode a run, plus another byte to write the header
399 * to resume normal output; so a three-element run is
400 * neutral, and anything beyond that is unconditionally
401 * worthwhile. With two-byte literals or more, even a
404 if (thislen
> 1 || prev2
) {
408 * It's worth encoding a run. Start at prevpos,
409 * unless hdrsize==0 in which case we can back up
410 * another one and start by overwriting hdrpos.
413 hdrsize
--; /* remove the literal at prevpos */
417 prevpos
-= prevlen
;/* and possibly another one */
421 assert(prevpos
== hdrpos
+ 1);
423 b
->len
= prevpos
+prevlen
;
425 memmove(b
->data
+ prevpos
+1, b
->data
+ prevpos
, prevlen
);
427 b
->len
= prevpos
+prevlen
+1;
429 * Terminate the previous run of ordinary
432 assert(hdrsize
>= 1 && hdrsize
<= 128);
433 b
->data
[hdrpos
] = hdrsize
- 1;
436 runlen
= prev2 ?
3 : 2;
438 while (n
> 0 && runlen
< 129) {
442 makeliteral(b
, c
, &state
);
443 tmplen
= b
->len
- tmppos
;
445 if (tmplen
!= thislen
||
446 memcmp(b
->data
+ runpos
+1, b
->data
+ tmppos
, tmplen
)) {
448 break; /* run over */
453 assert(runlen
>= 2 && runlen
<= 129);
454 b
->data
[runpos
] = runlen
+ 0x80 - 2;
459 /* And ensure this run doesn't interfere with the next. */
460 prevlen
= prevpos
= 0;
466 * Just flag that the previous two literals were
467 * identical, in case we find a third identical one
468 * we want to turn into a run.
481 * This character isn't (yet) part of a run. Add it to
485 if (hdrsize
== 128) {
486 b
->data
[hdrpos
] = hdrsize
- 1;
490 prevlen
= prevpos
= 0;
499 assert(hdrsize
<= 128);
500 b
->data
[hdrpos
] = hdrsize
- 1;
505 static void makeliteral_chr(struct buf
*b
, termchar
*c
, unsigned long *state
)
508 * My encoding for characters is UTF-8-like, in that it stores
509 * 7-bit ASCII in one byte and uses high-bit-set bytes as
510 * introducers to indicate a longer sequence. However, it's
511 * unlike UTF-8 in that it doesn't need to be able to
512 * resynchronise, and therefore I don't want to waste two bits
513 * per byte on having recognisable continuation characters.
514 * Also I don't want to rule out the possibility that I may one
515 * day use values 0x80000000-0xFFFFFFFF for interesting
516 * purposes, so unlike UTF-8 I need a full 32-bit range.
517 * Accordingly, here is my encoding:
519 * 00000000-0000007F: 0xxxxxxx (but see below)
520 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
521 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
522 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
523 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
525 * (`Z' is like `x' but is always going to be zero since the
526 * values I'm encoding don't go above 2^32. In principle the
527 * five-byte form of the encoding could extend to 2^35, and
528 * there could be six-, seven-, eight- and nine-byte forms as
529 * well to allow up to 64-bit values to be encoded. But that's
530 * completely unnecessary for these purposes!)
532 * The encoding as written above would be very simple, except
533 * that 7-bit ASCII can occur in several different ways in the
534 * terminal data; sometimes it crops up in the D800 page
535 * (CSET_ASCII) but at other times it's in the 0000 page (real
536 * Unicode). Therefore, this encoding is actually _stateful_:
537 * the one-byte encoding of 00-7F actually indicates `reuse the
538 * upper three bytes of the last character', and to encode an
539 * absolute value of 00-7F you need to use the two-byte form
542 if ((c
->chr
& ~0x7F) == *state
) {
543 add(b
, (unsigned char)(c
->chr
& 0x7F));
544 } else if (c
->chr
< 0x4000) {
545 add(b
, (unsigned char)(((c
->chr
>> 8) & 0x3F) | 0x80));
546 add(b
, (unsigned char)(c
->chr
& 0xFF));
547 } else if (c
->chr
< 0x200000) {
548 add(b
, (unsigned char)(((c
->chr
>> 16) & 0x1F) | 0xC0));
549 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
550 add(b
, (unsigned char)(c
->chr
& 0xFF));
551 } else if (c
->chr
< 0x10000000) {
552 add(b
, (unsigned char)(((c
->chr
>> 24) & 0x0F) | 0xE0));
553 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
554 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
555 add(b
, (unsigned char)(c
->chr
& 0xFF));
558 add(b
, (unsigned char)((c
->chr
>> 24) & 0xFF));
559 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
560 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
561 add(b
, (unsigned char)(c
->chr
& 0xFF));
563 *state
= c
->chr
& ~0xFF;
565 static void makeliteral_attr(struct buf
*b
, termchar
*c
, unsigned long *state
)
568 * My encoding for attributes is 16-bit-granular and assumes
569 * that the top bit of the word is never required. I either
570 * store a two-byte value with the top bit clear (indicating
571 * just that value), or a four-byte value with the top bit set
572 * (indicating the same value with its top bit clear).
574 * However, first I permute the bits of the attribute value, so
575 * that the eight bits of colour (four in each of fg and bg)
576 * which are never non-zero unless xterm 256-colour mode is in
577 * use are placed higher up the word than everything else. This
578 * ensures that attribute values remain 16-bit _unless_ the
579 * user uses extended colour.
581 unsigned attr
, colourbits
;
585 assert(ATTR_BGSHIFT
> ATTR_FGSHIFT
);
587 colourbits
= (attr
>> (ATTR_BGSHIFT
+ 4)) & 0xF;
589 colourbits
|= (attr
>> (ATTR_FGSHIFT
+ 4)) & 0xF;
591 attr
= (((attr
>> (ATTR_BGSHIFT
+ 8)) << (ATTR_BGSHIFT
+ 4)) |
592 (attr
& ((1 << (ATTR_BGSHIFT
+ 4))-1)));
593 attr
= (((attr
>> (ATTR_FGSHIFT
+ 8)) << (ATTR_FGSHIFT
+ 4)) |
594 (attr
& ((1 << (ATTR_FGSHIFT
+ 4))-1)));
596 attr
|= (colourbits
<< (32-9));
599 add(b
, (unsigned char)((attr
>> 8) & 0xFF));
600 add(b
, (unsigned char)(attr
& 0xFF));
602 add(b
, (unsigned char)(((attr
>> 24) & 0x7F) | 0x80));
603 add(b
, (unsigned char)((attr
>> 16) & 0xFF));
604 add(b
, (unsigned char)((attr
>> 8) & 0xFF));
605 add(b
, (unsigned char)(attr
& 0xFF));
608 static void makeliteral_cc(struct buf
*b
, termchar
*c
, unsigned long *state
)
611 * For combining characters, I just encode a bunch of ordinary
612 * chars using makeliteral_chr, and terminate with a \0
613 * character (which I know won't come up as a combining char
616 * I don't use the stateful encoding in makeliteral_chr.
618 unsigned long zstate
;
627 makeliteral_chr(b
, c
, &zstate
);
632 makeliteral_chr(b
, &z
, &zstate
);
635 static termline
*decompressline(unsigned char *data
, int *bytes_used
);
637 static unsigned char *compressline(termline
*ldata
)
639 struct buf buffer
= { NULL
, 0, 0 }, *b
= &buffer
;
642 * First, store the column count, 7 bits at a time, least
643 * significant `digit' first, with the high bit set on all but
649 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
652 add(b
, (unsigned char)(n
));
656 * Next store the lattrs; same principle.
659 int n
= ldata
->lattr
;
661 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
664 add(b
, (unsigned char)(n
));
668 * Now we store a sequence of separate run-length encoded
669 * fragments, each containing exactly as many symbols as there
670 * are columns in the ldata.
672 * All of these have a common basic format:
674 * - a byte 00-7F indicates that X+1 literals follow it
675 * - a byte 80-FF indicates that a single literal follows it
676 * and expects to be repeated (X-0x80)+2 times.
678 * The format of the `literals' varies between the fragments.
680 makerle(b
, ldata
, makeliteral_chr
);
681 makerle(b
, ldata
, makeliteral_attr
);
682 makerle(b
, ldata
, makeliteral_cc
);
685 * Diagnostics: ensure that the compressed data really does
686 * decompress to the right thing.
688 * This is a bit performance-heavy for production code.
691 #ifndef CHECK_SB_COMPRESSION
697 #ifdef DIAGNOSTIC_SB_COMPRESSION
698 for (i
= 0; i
< b
->len
; i
++) {
699 printf(" %02x ", b
->data
[i
]);
704 dcl
= decompressline(b
->data
, &dused
);
705 assert(b
->len
== dused
);
706 assert(ldata
->cols
== dcl
->cols
);
707 assert(ldata
->lattr
== dcl
->lattr
);
708 for (i
= 0; i
< ldata
->cols
; i
++)
709 assert(termchars_equal(&ldata
->chars
[i
], &dcl
->chars
[i
]));
711 #ifdef DIAGNOSTIC_SB_COMPRESSION
712 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
713 ldata
->cols
, 4 * ldata
->cols
, dused
,
714 (double)dused
/ (4 * ldata
->cols
));
720 #endif /* TERM_CC_DIAGS */
723 * Trim the allocated memory so we don't waste any, and return.
725 return sresize(b
->data
, b
->len
, unsigned char);
728 static void readrle(struct buf
*b
, termline
*ldata
,
729 void (*readliteral
)(struct buf
*b
, termchar
*c
,
730 termline
*ldata
, unsigned long *state
))
733 unsigned long state
= 0;
735 while (n
< ldata
->cols
) {
741 int pos
= b
->len
, count
= hdr
+ 2 - 0x80;
743 assert(n
< ldata
->cols
);
745 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
749 /* Just a sequence of consecutive literals. */
753 assert(n
< ldata
->cols
);
754 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
760 assert(n
== ldata
->cols
);
762 static void readliteral_chr(struct buf
*b
, termchar
*c
, termline
*ldata
,
763 unsigned long *state
)
768 * 00000000-0000007F: 0xxxxxxx
769 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
770 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
771 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
772 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
777 c
->chr
= byte
| *state
;
778 } else if (byte
< 0xC0) {
779 c
->chr
= (byte
&~ 0xC0) << 8;
781 } else if (byte
< 0xE0) {
782 c
->chr
= (byte
&~ 0xE0) << 16;
783 c
->chr
|= get(b
) << 8;
785 } else if (byte
< 0xF0) {
786 c
->chr
= (byte
&~ 0xF0) << 24;
787 c
->chr
|= get(b
) << 16;
788 c
->chr
|= get(b
) << 8;
791 assert(byte
== 0xF0);
792 c
->chr
= get(b
) << 24;
793 c
->chr
|= get(b
) << 16;
794 c
->chr
|= get(b
) << 8;
797 *state
= c
->chr
& ~0xFF;
799 static void readliteral_attr(struct buf
*b
, termchar
*c
, termline
*ldata
,
800 unsigned long *state
)
802 unsigned val
, attr
, colourbits
;
814 colourbits
= (val
>> (32-9)) & 0xFF;
815 attr
= (val
& ((1<<(32-9))-1));
817 attr
= (((attr
>> (ATTR_FGSHIFT
+ 4)) << (ATTR_FGSHIFT
+ 8)) |
818 (attr
& ((1 << (ATTR_FGSHIFT
+ 4))-1)));
819 attr
= (((attr
>> (ATTR_BGSHIFT
+ 4)) << (ATTR_BGSHIFT
+ 8)) |
820 (attr
& ((1 << (ATTR_BGSHIFT
+ 4))-1)));
822 attr
|= (colourbits
>> 4) << (ATTR_BGSHIFT
+ 4);
823 attr
|= (colourbits
& 0xF) << (ATTR_FGSHIFT
+ 4);
827 static void readliteral_cc(struct buf
*b
, termchar
*c
, termline
*ldata
,
828 unsigned long *state
)
831 unsigned long zstate
;
832 int x
= c
- ldata
->chars
;
838 readliteral_chr(b
, &n
, ldata
, &zstate
);
841 add_cc(ldata
, x
, n
.chr
);
845 static termline
*decompressline(unsigned char *data
, int *bytes_used
)
847 int ncols
, byte
, shift
;
848 struct buf buffer
, *b
= &buffer
;
855 * First read in the column count.
860 ncols
|= (byte
& 0x7F) << shift
;
862 } while (byte
& 0x80);
865 * Now create the output termline.
867 ldata
= snew(termline
);
868 ldata
->chars
= snewn(ncols
, termchar
);
869 ldata
->cols
= ldata
->size
= ncols
;
870 ldata
->temporary
= TRUE
;
874 * We must set all the cc pointers in ldata->chars to 0 right
875 * now, so that cc diagnostics that verify the integrity of the
876 * whole line will make sense while we're in the middle of
881 for (i
= 0; i
< ldata
->cols
; i
++)
882 ldata
->chars
[i
].cc_next
= 0;
886 * Now read in the lattr.
888 ldata
->lattr
= shift
= 0;
891 ldata
->lattr
|= (byte
& 0x7F) << shift
;
893 } while (byte
& 0x80);
896 * Now we read in each of the RLE streams in turn.
898 readrle(b
, ldata
, readliteral_chr
);
899 readrle(b
, ldata
, readliteral_attr
);
900 readrle(b
, ldata
, readliteral_cc
);
902 /* Return the number of bytes read, for diagnostic purposes. */
904 *bytes_used
= b
->len
;
910 * Resize a line to make it `cols' columns wide.
912 static void resizeline(Terminal
*term
, termline
*line
, int cols
)
916 if (line
->cols
!= cols
) {
918 oldcols
= line
->cols
;
921 * This line is the wrong length, which probably means it
922 * hasn't been accessed since a resize. Resize it now.
924 * First, go through all the characters that will be thrown
925 * out in the resize (if we're shrinking the line) and
926 * return their cc lists to the cc free list.
928 for (i
= cols
; i
< oldcols
; i
++)
932 * If we're shrinking the line, we now bodily move the
933 * entire cc section from where it started to where it now
934 * needs to be. (We have to do this before the resize, so
935 * that the data we're copying is still there. However, if
936 * we're expanding, we have to wait until _after_ the
937 * resize so that the space we're copying into is there.)
940 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
941 (line
->size
- line
->cols
) * TSIZE
);
944 * Now do the actual resize, leaving the _same_ amount of
945 * cc space as there was to begin with.
947 line
->size
+= cols
- oldcols
;
948 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
952 * If we're expanding the line, _now_ we move the cc
956 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
957 (line
->size
- line
->cols
) * TSIZE
);
960 * Go through what's left of the original line, and adjust
961 * the first cc_next pointer in each list. (All the
962 * subsequent ones are still valid because they are
963 * relative offsets within the cc block.) Also do the same
964 * to the head of the cc_free list.
966 for (i
= 0; i
< oldcols
&& i
< cols
; i
++)
967 if (line
->chars
[i
].cc_next
)
968 line
->chars
[i
].cc_next
+= cols
- oldcols
;
970 line
->cc_free
+= cols
- oldcols
;
973 * And finally fill in the new space with erase chars. (We
974 * don't have to worry about cc lists here, because we
975 * _know_ the erase char doesn't have one.)
977 for (i
= oldcols
; i
< cols
; i
++)
978 line
->chars
[i
] = term
->basic_erase_char
;
987 * Get the number of lines in the scrollback.
989 static int sblines(Terminal
*term
)
991 int sblines
= count234(term
->scrollback
);
992 if (term
->cfg
.erase_to_scrollback
&&
993 term
->alt_which
&& term
->alt_screen
) {
994 sblines
+= term
->alt_sblines
;
1000 * Retrieve a line of the screen or of the scrollback, according to
1001 * whether the y coordinate is non-negative or negative
1004 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
1011 whichtree
= term
->screen
;
1018 if (term
->cfg
.erase_to_scrollback
&&
1019 term
->alt_which
&& term
->alt_screen
) {
1020 altlines
= term
->alt_sblines
;
1022 if (y
< -altlines
) {
1023 whichtree
= term
->scrollback
;
1024 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
1026 whichtree
= term
->alt_screen
;
1027 treeindex
= y
+ term
->alt_sblines
;
1028 /* treeindex = y + count234(term->alt_screen); */
1031 if (whichtree
== term
->scrollback
) {
1032 unsigned char *cline
= index234(whichtree
, treeindex
);
1033 line
= decompressline(cline
, NULL
);
1035 line
= index234(whichtree
, treeindex
);
1038 /* We assume that we don't screw up and retrieve something out of range. */
1040 fatalbox("line==NULL in terminal.c\n"
1041 "lineno=%d y=%d w=%d h=%d\n"
1042 "count(scrollback=%p)=%d\n"
1043 "count(screen=%p)=%d\n"
1044 "count(alt=%p)=%d alt_sblines=%d\n"
1045 "whichtree=%p treeindex=%d\n\n"
1046 "Please contact <putty@projects.tartarus.org> "
1047 "and pass on the above information.",
1048 lineno
, y
, term
->cols
, term
->rows
,
1049 term
->scrollback
, count234(term
->scrollback
),
1050 term
->screen
, count234(term
->screen
),
1051 term
->alt_screen
, count234(term
->alt_screen
), term
->alt_sblines
,
1052 whichtree
, treeindex
);
1054 assert(line
!= NULL
);
1056 resizeline(term
, line
, term
->cols
);
1057 /* FIXME: should we sort the compressed scrollback out here? */
1062 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
1063 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
1065 static void term_schedule_tblink(Terminal
*term
);
1066 static void term_schedule_cblink(Terminal
*term
);
1068 static void term_timer(void *ctx
, long now
)
1070 Terminal
*term
= (Terminal
*)ctx
;
1073 if (term
->tblink_pending
&& now
- term
->next_tblink
>= 0) {
1074 term
->tblinker
= !term
->tblinker
;
1075 term
->tblink_pending
= FALSE
;
1076 term_schedule_tblink(term
);
1080 if (term
->cblink_pending
&& now
- term
->next_cblink
>= 0) {
1081 term
->cblinker
= !term
->cblinker
;
1082 term
->cblink_pending
= FALSE
;
1083 term_schedule_cblink(term
);
1087 if (term
->in_vbell
&& now
- term
->vbell_end
>= 0) {
1088 term
->in_vbell
= FALSE
;
1093 (term
->window_update_pending
&& now
- term
->next_update
>= 0))
1097 static void term_schedule_update(Terminal
*term
)
1099 if (!term
->window_update_pending
) {
1100 term
->window_update_pending
= TRUE
;
1101 term
->next_update
= schedule_timer(UPDATE_DELAY
, term_timer
, term
);
1106 * Call this whenever the terminal window state changes, to queue
1109 static void seen_disp_event(Terminal
*term
)
1111 term
->seen_disp_event
= TRUE
; /* for scrollback-reset-on-activity */
1112 term_schedule_update(term
);
1116 * Call when the terminal's blinking-text settings change, or when
1117 * a text blink has just occurred.
1119 static void term_schedule_tblink(Terminal
*term
)
1121 if (term
->blink_is_real
) {
1122 if (!term
->tblink_pending
)
1123 term
->next_tblink
= schedule_timer(TBLINK_DELAY
, term_timer
, term
);
1124 term
->tblink_pending
= TRUE
;
1126 term
->tblinker
= 1; /* reset when not in use */
1127 term
->tblink_pending
= FALSE
;
1132 * Likewise with cursor blinks.
1134 static void term_schedule_cblink(Terminal
*term
)
1136 if (term
->cfg
.blink_cur
&& term
->has_focus
) {
1137 if (!term
->cblink_pending
)
1138 term
->next_cblink
= schedule_timer(CBLINK_DELAY
, term_timer
, term
);
1139 term
->cblink_pending
= TRUE
;
1141 term
->cblinker
= 1; /* reset when not in use */
1142 term
->cblink_pending
= FALSE
;
1147 * Call to reset cursor blinking on new output.
1149 static void term_reset_cblink(Terminal
*term
)
1151 seen_disp_event(term
);
1153 term
->cblink_pending
= FALSE
;
1154 term_schedule_cblink(term
);
1158 * Call to begin a visual bell.
1160 static void term_schedule_vbell(Terminal
*term
, int already_started
,
1163 long ticks_already_gone
;
1165 if (already_started
)
1166 ticks_already_gone
= GETTICKCOUNT() - startpoint
;
1168 ticks_already_gone
= 0;
1170 if (ticks_already_gone
< VBELL_DELAY
) {
1171 term
->in_vbell
= TRUE
;
1172 term
->vbell_end
= schedule_timer(VBELL_DELAY
- ticks_already_gone
,
1175 term
->in_vbell
= FALSE
;
1180 * Set up power-on settings for the terminal.
1181 * If 'clear' is false, don't actually clear the primary screen, and
1182 * position the cursor below the last non-blank line (scrolling if
1185 static void power_on(Terminal
*term
, int clear
)
1187 term
->alt_x
= term
->alt_y
= 0;
1188 term
->savecurs
.x
= term
->savecurs
.y
= 0;
1189 term
->alt_savecurs
.x
= term
->alt_savecurs
.y
= 0;
1190 term
->alt_t
= term
->marg_t
= 0;
1191 if (term
->rows
!= -1)
1192 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1194 term
->alt_b
= term
->marg_b
= 0;
1195 if (term
->cols
!= -1) {
1197 for (i
= 0; i
< term
->cols
; i
++)
1198 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1200 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1201 term
->alt_ins
= term
->insert
= FALSE
;
1202 term
->alt_wnext
= term
->wrapnext
=
1203 term
->save_wnext
= term
->alt_save_wnext
= FALSE
;
1204 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1205 term
->alt_cset
= term
->cset
= term
->save_cset
= term
->alt_save_cset
= 0;
1206 term
->alt_utf
= term
->utf
= term
->save_utf
= term
->alt_save_utf
= 0;
1207 term
->utf_state
= 0;
1208 term
->alt_sco_acs
= term
->sco_acs
=
1209 term
->save_sco_acs
= term
->alt_save_sco_acs
= 0;
1210 term
->cset_attr
[0] = term
->cset_attr
[1] =
1211 term
->save_csattr
= term
->alt_save_csattr
= CSET_ASCII
;
1213 term
->in_vbell
= FALSE
;
1214 term
->cursor_on
= 1;
1215 term
->big_cursor
= 0;
1216 term
->default_attr
= term
->save_attr
=
1217 term
->alt_save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
1218 term
->term_editing
= term
->term_echoing
= FALSE
;
1219 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1220 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1221 term
->use_bce
= term
->cfg
.bce
;
1222 term
->blink_is_real
= term
->cfg
.blinktext
;
1223 term
->erase_char
= term
->basic_erase_char
;
1224 term
->alt_which
= 0;
1225 term_print_finish(term
);
1228 for (i
= 0; i
< 256; i
++)
1229 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1232 swap_screen(term
, 1, FALSE
, FALSE
);
1233 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1234 swap_screen(term
, 0, FALSE
, FALSE
);
1236 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1237 term
->curs
.y
= find_last_nonempty_line(term
, term
->screen
) + 1;
1238 if (term
->curs
.y
== term
->rows
) {
1240 scroll(term
, 0, term
->rows
- 1, 1, TRUE
);
1246 term_schedule_tblink(term
);
1247 term_schedule_cblink(term
);
1251 * Force a screen update.
1253 void term_update(Terminal
*term
)
1257 term
->window_update_pending
= FALSE
;
1259 ctx
= get_ctx(term
->frontend
);
1261 int need_sbar_update
= term
->seen_disp_event
;
1262 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1263 term
->disptop
= 0; /* return to main screen */
1264 term
->seen_disp_event
= 0;
1265 need_sbar_update
= TRUE
;
1268 if (need_sbar_update
)
1270 do_paint(term
, ctx
, TRUE
);
1271 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1277 * Called from front end when a keypress occurs, to trigger
1278 * anything magical that needs to happen in that situation.
1280 void term_seen_key_event(Terminal
*term
)
1283 * On any keypress, clear the bell overload mechanism
1284 * completely, on the grounds that large numbers of
1285 * beeps coming from deliberate key action are likely
1286 * to be intended (e.g. beeps from filename completion
1287 * blocking repeatedly).
1289 term
->beep_overloaded
= FALSE
;
1290 while (term
->beephead
) {
1291 struct beeptime
*tmp
= term
->beephead
;
1292 term
->beephead
= tmp
->next
;
1295 term
->beeptail
= NULL
;
1299 * Reset the scrollback on keypress, if we're doing that.
1301 if (term
->cfg
.scroll_on_key
) {
1302 term
->disptop
= 0; /* return to main screen */
1303 seen_disp_event(term
);
1308 * Same as power_on(), but an external function.
1310 void term_pwron(Terminal
*term
, int clear
)
1312 power_on(term
, clear
);
1313 if (term
->ldisc
) /* cause ldisc to notice changes */
1314 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1320 static void set_erase_char(Terminal
*term
)
1322 term
->erase_char
= term
->basic_erase_char
;
1324 term
->erase_char
.attr
= (term
->curr_attr
&
1325 (ATTR_FGMASK
| ATTR_BGMASK
));
1329 * When the user reconfigures us, we need to check the forbidden-
1330 * alternate-screen config option, disable raw mouse mode if the
1331 * user has disabled mouse reporting, and abandon a print job if
1332 * the user has disabled printing.
1334 void term_reconfig(Terminal
*term
, Config
*cfg
)
1337 * Before adopting the new config, check all those terminal
1338 * settings which control power-on defaults; and if they've
1339 * changed, we will modify the current state as well as the
1340 * default one. The full list is: Auto wrap mode, DEC Origin
1341 * Mode, BCE, blinking text, character classes.
1343 int reset_wrap
, reset_decom
, reset_bce
, reset_tblink
, reset_charclass
;
1346 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1347 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1348 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1349 reset_tblink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1350 reset_charclass
= 0;
1351 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1352 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1353 reset_charclass
= 1;
1356 * If the bidi or shaping settings have changed, flush the bidi
1359 if (term
->cfg
.arabicshaping
!= cfg
->arabicshaping
||
1360 term
->cfg
.bidi
!= cfg
->bidi
) {
1361 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1362 sfree(term
->pre_bidi_cache
[i
].chars
);
1363 sfree(term
->post_bidi_cache
[i
].chars
);
1364 term
->pre_bidi_cache
[i
].width
= -1;
1365 term
->pre_bidi_cache
[i
].chars
= NULL
;
1366 term
->post_bidi_cache
[i
].width
= -1;
1367 term
->post_bidi_cache
[i
].chars
= NULL
;
1371 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1374 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1376 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1378 term
->use_bce
= term
->cfg
.bce
;
1379 set_erase_char(term
);
1382 term
->blink_is_real
= term
->cfg
.blinktext
;
1384 if (reset_charclass
)
1385 for (i
= 0; i
< 256; i
++)
1386 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1388 if (term
->cfg
.no_alt_screen
)
1389 swap_screen(term
, 0, FALSE
, FALSE
);
1390 if (term
->cfg
.no_mouse_rep
) {
1391 term
->xterm_mouse
= 0;
1392 set_raw_mouse_mode(term
->frontend
, 0);
1394 if (term
->cfg
.no_remote_charset
) {
1395 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1396 term
->sco_acs
= term
->alt_sco_acs
= 0;
1399 if (!*term
->cfg
.printer
) {
1400 term_print_finish(term
);
1402 term_schedule_tblink(term
);
1403 term_schedule_cblink(term
);
1407 * Clear the scrollback.
1409 void term_clrsb(Terminal
*term
)
1411 unsigned char *line
;
1413 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1414 sfree(line
); /* this is compressed data, not a termline */
1416 term
->tempsblines
= 0;
1417 term
->alt_sblines
= 0;
1422 * Initialise the terminal.
1424 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1430 * Allocate a new Terminal structure and initialise the fields
1433 term
= snew(Terminal
);
1434 term
->frontend
= frontend
;
1435 term
->ucsdata
= ucsdata
;
1436 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1437 term
->logctx
= NULL
;
1438 term
->compatibility_level
= TM_PUTTY
;
1439 strcpy(term
->id_string
, "\033[?6c");
1440 term
->cblink_pending
= term
->tblink_pending
= FALSE
;
1441 term
->paste_buffer
= NULL
;
1442 term
->paste_len
= 0;
1443 term
->last_paste
= 0;
1444 bufchain_init(&term
->inbuf
);
1445 bufchain_init(&term
->printer_buf
);
1446 term
->printing
= term
->only_printing
= FALSE
;
1447 term
->print_job
= NULL
;
1448 term
->vt52_mode
= FALSE
;
1449 term
->cr_lf_return
= FALSE
;
1450 term
->seen_disp_event
= FALSE
;
1451 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1452 term
->reset_132
= FALSE
;
1453 term
->cblinker
= term
->tblinker
= 0;
1454 term
->has_focus
= 1;
1455 term
->repeat_off
= FALSE
;
1456 term
->termstate
= TOPLEVEL
;
1457 term
->selstate
= NO_SELECTION
;
1460 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1461 term
->tempsblines
= 0;
1462 term
->alt_sblines
= 0;
1464 term
->disptext
= NULL
;
1465 term
->dispcursx
= term
->dispcursy
= -1;
1468 term
->rows
= term
->cols
= -1;
1469 power_on(term
, TRUE
);
1470 term
->beephead
= term
->beeptail
= NULL
;
1471 #ifdef OPTIMISE_SCROLL
1472 term
->scrollhead
= term
->scrolltail
= NULL
;
1473 #endif /* OPTIMISE_SCROLL */
1475 term
->lastbeep
= FALSE
;
1476 term
->beep_overloaded
= FALSE
;
1477 term
->attr_mask
= 0xffffffff;
1478 term
->resize_fn
= NULL
;
1479 term
->resize_ctx
= NULL
;
1480 term
->in_term_out
= FALSE
;
1482 term
->ltemp_size
= 0;
1483 term
->wcFrom
= NULL
;
1485 term
->wcFromTo_size
= 0;
1487 term
->window_update_pending
= FALSE
;
1489 term
->bidi_cache_size
= 0;
1490 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1493 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1494 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1495 term
->basic_erase_char
.cc_next
= 0;
1496 term
->erase_char
= term
->basic_erase_char
;
1501 void term_free(Terminal
*term
)
1504 struct beeptime
*beep
;
1507 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1508 sfree(line
); /* compressed data, not a termline */
1509 freetree234(term
->scrollback
);
1510 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1512 freetree234(term
->screen
);
1513 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1515 freetree234(term
->alt_screen
);
1516 if (term
->disptext
) {
1517 for (i
= 0; i
< term
->rows
; i
++)
1518 freeline(term
->disptext
[i
]);
1520 sfree(term
->disptext
);
1521 while (term
->beephead
) {
1522 beep
= term
->beephead
;
1523 term
->beephead
= beep
->next
;
1526 bufchain_clear(&term
->inbuf
);
1528 printer_finish_job(term
->print_job
);
1529 bufchain_clear(&term
->printer_buf
);
1530 sfree(term
->paste_buffer
);
1532 sfree(term
->wcFrom
);
1535 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1536 sfree(term
->pre_bidi_cache
[i
].chars
);
1537 sfree(term
->post_bidi_cache
[i
].chars
);
1539 sfree(term
->pre_bidi_cache
);
1540 sfree(term
->post_bidi_cache
);
1542 expire_timer_context(term
);
1548 * Set up the terminal for a given size.
1550 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1553 termline
**newdisp
, *line
;
1554 int i
, j
, oldrows
= term
->rows
;
1556 int save_alt_which
= term
->alt_which
;
1558 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1559 newsavelines
== term
->savelines
)
1560 return; /* nothing to do */
1562 /* Behave sensibly if we're given zero (or negative) rows/cols */
1564 if (newrows
< 1) newrows
= 1;
1565 if (newcols
< 1) newcols
= 1;
1568 swap_screen(term
, 0, FALSE
, FALSE
);
1570 term
->alt_t
= term
->marg_t
= 0;
1571 term
->alt_b
= term
->marg_b
= newrows
- 1;
1573 if (term
->rows
== -1) {
1574 term
->scrollback
= newtree234(NULL
);
1575 term
->screen
= newtree234(NULL
);
1576 term
->tempsblines
= 0;
1581 * Resize the screen and scrollback. We only need to shift
1582 * lines around within our data structures, because lineptr()
1583 * will take care of resizing each individual line if
1586 * - If the new screen is longer, we shunt lines in from temporary
1587 * scrollback if possible, otherwise we add new blank lines at
1590 * - If the new screen is shorter, we remove any blank lines at
1591 * the bottom if possible, otherwise shunt lines above the cursor
1592 * to scrollback if possible, otherwise delete lines below the
1595 * - Then, if the new scrollback length is less than the
1596 * amount of scrollback we actually have, we must throw some
1599 sblen
= count234(term
->scrollback
);
1600 /* Do this loop to expand the screen if newrows > rows */
1601 assert(term
->rows
== count234(term
->screen
));
1602 while (term
->rows
< newrows
) {
1603 if (term
->tempsblines
> 0) {
1604 unsigned char *cline
;
1605 /* Insert a line from the scrollback at the top of the screen. */
1606 assert(sblen
>= term
->tempsblines
);
1607 cline
= delpos234(term
->scrollback
, --sblen
);
1608 line
= decompressline(cline
, NULL
);
1610 line
->temporary
= FALSE
; /* reconstituted line is now real */
1611 term
->tempsblines
-= 1;
1612 addpos234(term
->screen
, line
, 0);
1614 term
->savecurs
.y
+= 1;
1616 /* Add a new blank line at the bottom of the screen. */
1617 line
= newline(term
, newcols
, FALSE
);
1618 addpos234(term
->screen
, line
, count234(term
->screen
));
1622 /* Do this loop to shrink the screen if newrows < rows */
1623 while (term
->rows
> newrows
) {
1624 if (term
->curs
.y
< term
->rows
- 1) {
1625 /* delete bottom row, unless it contains the cursor */
1626 sfree(delpos234(term
->screen
, term
->rows
- 1));
1628 /* push top row to scrollback */
1629 line
= delpos234(term
->screen
, 0);
1630 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1632 term
->tempsblines
+= 1;
1634 term
->savecurs
.y
-= 1;
1638 assert(term
->rows
== newrows
);
1639 assert(count234(term
->screen
) == newrows
);
1641 /* Delete any excess lines from the scrollback. */
1642 while (sblen
> newsavelines
) {
1643 line
= delpos234(term
->scrollback
, 0);
1647 if (sblen
< term
->tempsblines
)
1648 term
->tempsblines
= sblen
;
1649 assert(count234(term
->scrollback
) <= newsavelines
);
1650 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1653 /* Make a new displayed text buffer. */
1654 newdisp
= snewn(newrows
, termline
*);
1655 for (i
= 0; i
< newrows
; i
++) {
1656 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1657 for (j
= 0; j
< newcols
; j
++)
1658 newdisp
[i
]->chars
[j
].attr
= ATTR_INVALID
;
1660 if (term
->disptext
) {
1661 for (i
= 0; i
< oldrows
; i
++)
1662 freeline(term
->disptext
[i
]);
1664 sfree(term
->disptext
);
1665 term
->disptext
= newdisp
;
1666 term
->dispcursx
= term
->dispcursy
= -1;
1668 /* Make a new alternate screen. */
1669 newalt
= newtree234(NULL
);
1670 for (i
= 0; i
< newrows
; i
++) {
1671 line
= newline(term
, newcols
, TRUE
);
1672 addpos234(newalt
, line
, i
);
1674 if (term
->alt_screen
) {
1675 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1677 freetree234(term
->alt_screen
);
1679 term
->alt_screen
= newalt
;
1680 term
->alt_sblines
= 0;
1682 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1685 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1686 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1689 /* Check that the cursor positions are still valid. */
1690 if (term
->savecurs
.y
< 0)
1691 term
->savecurs
.y
= 0;
1692 if (term
->savecurs
.y
>= newrows
)
1693 term
->savecurs
.y
= newrows
- 1;
1694 if (term
->curs
.y
< 0)
1696 if (term
->curs
.y
>= newrows
)
1697 term
->curs
.y
= newrows
- 1;
1698 if (term
->curs
.x
>= newcols
)
1699 term
->curs
.x
= newcols
- 1;
1700 term
->alt_x
= term
->alt_y
= 0;
1701 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1703 term
->rows
= newrows
;
1704 term
->cols
= newcols
;
1705 term
->savelines
= newsavelines
;
1707 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1711 if (term
->resize_fn
)
1712 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1716 * Hand a function and context pointer to the terminal which it can
1717 * use to notify a back end of resizes.
1719 void term_provide_resize_fn(Terminal
*term
,
1720 void (*resize_fn
)(void *, int, int),
1723 term
->resize_fn
= resize_fn
;
1724 term
->resize_ctx
= resize_ctx
;
1725 if (resize_fn
&& term
->cols
> 0 && term
->rows
> 0)
1726 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1729 /* Find the bottom line on the screen that has any content.
1730 * If only the top line has content, returns 0.
1731 * If no lines have content, return -1.
1733 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1736 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1737 termline
*line
= index234(screen
, i
);
1739 for (j
= 0; j
< line
->cols
; j
++)
1740 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1742 if (j
!= line
->cols
) break;
1748 * Swap screens. If `reset' is TRUE and we have been asked to
1749 * switch to the alternate screen, we must bring most of its
1750 * configuration from the main screen and erase the contents of the
1751 * alternate screen completely. (This is even true if we're already
1752 * on it! Blame xterm.)
1754 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1761 reset
= FALSE
; /* do no weird resetting if which==0 */
1763 if (which
!= term
->alt_which
) {
1764 term
->alt_which
= which
;
1766 ttr
= term
->alt_screen
;
1767 term
->alt_screen
= term
->screen
;
1769 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1771 if (!reset
&& !keep_cur_pos
)
1772 term
->curs
.x
= term
->alt_x
;
1775 if (!reset
&& !keep_cur_pos
)
1776 term
->curs
.y
= term
->alt_y
;
1779 if (!reset
) term
->marg_t
= term
->alt_t
;
1782 if (!reset
) term
->marg_b
= term
->alt_b
;
1785 if (!reset
) term
->dec_om
= term
->alt_om
;
1788 if (!reset
) term
->wrap
= term
->alt_wrap
;
1791 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1792 term
->alt_wnext
= t
;
1794 if (!reset
) term
->insert
= term
->alt_ins
;
1797 if (!reset
) term
->cset
= term
->alt_cset
;
1800 if (!reset
) term
->utf
= term
->alt_utf
;
1803 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1804 term
->alt_sco_acs
= t
;
1806 tp
= term
->savecurs
;
1807 if (!reset
&& !keep_cur_pos
)
1808 term
->savecurs
= term
->alt_savecurs
;
1809 term
->alt_savecurs
= tp
;
1810 t
= term
->save_cset
;
1811 if (!reset
&& !keep_cur_pos
)
1812 term
->save_cset
= term
->alt_save_cset
;
1813 term
->alt_save_cset
= t
;
1814 t
= term
->save_csattr
;
1815 if (!reset
&& !keep_cur_pos
)
1816 term
->save_csattr
= term
->alt_save_csattr
;
1817 term
->alt_save_csattr
= t
;
1818 t
= term
->save_attr
;
1819 if (!reset
&& !keep_cur_pos
)
1820 term
->save_attr
= term
->alt_save_attr
;
1821 term
->alt_save_attr
= t
;
1823 if (!reset
&& !keep_cur_pos
)
1824 term
->save_utf
= term
->alt_save_utf
;
1825 term
->alt_save_utf
= t
;
1826 t
= term
->save_wnext
;
1827 if (!reset
&& !keep_cur_pos
)
1828 term
->save_wnext
= term
->alt_save_wnext
;
1829 term
->alt_save_wnext
= t
;
1830 t
= term
->save_sco_acs
;
1831 if (!reset
&& !keep_cur_pos
)
1832 term
->save_sco_acs
= term
->alt_save_sco_acs
;
1833 term
->alt_save_sco_acs
= t
;
1836 if (reset
&& term
->screen
) {
1838 * Yes, this _is_ supposed to honour background-colour-erase.
1840 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1845 * Update the scroll bar.
1847 static void update_sbar(Terminal
*term
)
1849 int nscroll
= sblines(term
);
1850 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1851 nscroll
+ term
->disptop
, term
->rows
);
1855 * Check whether the region bounded by the two pointers intersects
1856 * the scroll region, and de-select the on-screen selection if so.
1858 static void check_selection(Terminal
*term
, pos from
, pos to
)
1860 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1865 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1866 * for backward.) `sb' is TRUE if the scrolling is permitted to
1867 * affect the scrollback buffer.
1869 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1872 int i
, seltop
, olddisptop
, shift
;
1874 if (topline
!= 0 || term
->alt_which
!= 0)
1877 olddisptop
= term
->disptop
;
1881 line
= delpos234(term
->screen
, botline
);
1882 resizeline(term
, line
, term
->cols
);
1883 for (i
= 0; i
< term
->cols
; i
++)
1884 copy_termchar(line
, i
, &term
->erase_char
);
1885 line
->lattr
= LATTR_NORM
;
1886 addpos234(term
->screen
, line
, topline
);
1888 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1890 if (term
->selstart
.y
> botline
) {
1891 term
->selstart
.y
= botline
+ 1;
1892 term
->selstart
.x
= 0;
1895 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1897 if (term
->selend
.y
> botline
) {
1898 term
->selend
.y
= botline
+ 1;
1907 line
= delpos234(term
->screen
, topline
);
1908 #ifdef TERM_CC_DIAGS
1911 if (sb
&& term
->savelines
> 0) {
1912 int sblen
= count234(term
->scrollback
);
1914 * We must add this line to the scrollback. We'll
1915 * remove a line from the top of the scrollback if
1916 * the scrollback is full.
1918 if (sblen
== term
->savelines
) {
1919 unsigned char *cline
;
1922 cline
= delpos234(term
->scrollback
, 0);
1925 term
->tempsblines
+= 1;
1927 addpos234(term
->scrollback
, compressline(line
), sblen
);
1929 /* now `line' itself can be reused as the bottom line */
1932 * If the user is currently looking at part of the
1933 * scrollback, and they haven't enabled any options
1934 * that are going to reset the scrollback as a
1935 * result of this movement, then the chances are
1936 * they'd like to keep looking at the same line. So
1937 * we move their viewpoint at the same rate as the
1938 * scroll, at least until their viewpoint hits the
1939 * top end of the scrollback buffer, at which point
1940 * we don't have the choice any more.
1942 * Thanks to Jan Holmen Holsten for the idea and
1943 * initial implementation.
1945 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1948 resizeline(term
, line
, term
->cols
);
1949 for (i
= 0; i
< term
->cols
; i
++)
1950 copy_termchar(line
, i
, &term
->erase_char
);
1951 line
->lattr
= LATTR_NORM
;
1952 addpos234(term
->screen
, line
, botline
);
1955 * If the selection endpoints move into the scrollback,
1956 * we keep them moving until they hit the top. However,
1957 * of course, if the line _hasn't_ moved into the
1958 * scrollback then we don't do this, and cut them off
1959 * at the top of the scroll region.
1961 * This applies to selstart and selend (for an existing
1962 * selection), and also selanchor (for one being
1963 * selected as we speak).
1965 seltop
= sb ?
-term
->savelines
: topline
;
1967 if (term
->selstate
!= NO_SELECTION
) {
1968 if (term
->selstart
.y
>= seltop
&&
1969 term
->selstart
.y
<= botline
) {
1971 if (term
->selstart
.y
< seltop
) {
1972 term
->selstart
.y
= seltop
;
1973 term
->selstart
.x
= 0;
1976 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1978 if (term
->selend
.y
< seltop
) {
1979 term
->selend
.y
= seltop
;
1983 if (term
->selanchor
.y
>= seltop
&&
1984 term
->selanchor
.y
<= botline
) {
1985 term
->selanchor
.y
--;
1986 if (term
->selanchor
.y
< seltop
) {
1987 term
->selanchor
.y
= seltop
;
1988 term
->selanchor
.x
= 0;
1996 #ifdef OPTIMISE_SCROLL
1997 shift
+= term
->disptop
- olddisptop
;
1998 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1999 scroll_display(term
, topline
, botline
, shift
);
2000 #endif /* OPTIMISE_SCROLL */
2003 #ifdef OPTIMISE_SCROLL
2005 * Add a scroll of a region on the screen into the pending scroll list.
2006 * `lines' is +ve for scrolling forward, -ve for backward.
2008 * If the scroll is on the same area as the last scroll in the list,
2011 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
2013 struct scrollregion
*newscroll
;
2014 if (term
->scrolltail
&&
2015 term
->scrolltail
->topline
== topline
&&
2016 term
->scrolltail
->botline
== botline
) {
2017 term
->scrolltail
->lines
+= lines
;
2019 newscroll
= snew(struct scrollregion
);
2020 newscroll
->topline
= topline
;
2021 newscroll
->botline
= botline
;
2022 newscroll
->lines
= lines
;
2023 newscroll
->next
= NULL
;
2025 if (!term
->scrollhead
)
2026 term
->scrollhead
= newscroll
;
2028 term
->scrolltail
->next
= newscroll
;
2029 term
->scrolltail
= newscroll
;
2034 * Scroll the physical display, and our conception of it in disptext.
2036 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
2038 int distance
, nlines
, i
, j
;
2040 distance
= lines
> 0 ? lines
: -lines
;
2041 nlines
= botline
- topline
+ 1 - distance
;
2043 for (i
= 0; i
< nlines
; i
++)
2044 for (j
= 0; j
< term
->cols
; j
++)
2045 copy_termchar(term
->disptext
[i
], j
,
2046 term
->disptext
[i
+distance
]->chars
+j
);
2047 if (term
->dispcursy
>= 0 &&
2048 term
->dispcursy
>= topline
+ distance
&&
2049 term
->dispcursy
< topline
+ distance
+ nlines
)
2050 term
->dispcursy
-= distance
;
2051 for (i
= 0; i
< distance
; i
++)
2052 for (j
= 0; j
< term
->cols
; j
++)
2053 term
->disptext
[nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
2055 for (i
= nlines
; i
-- ;)
2056 for (j
= 0; j
< term
->cols
; j
++)
2057 copy_termchar(term
->disptext
[i
+distance
], j
,
2058 term
->disptext
[i
]->chars
+j
);
2059 if (term
->dispcursy
>= 0 &&
2060 term
->dispcursy
>= topline
&&
2061 term
->dispcursy
< topline
+ nlines
)
2062 term
->dispcursy
+= distance
;
2063 for (i
= 0; i
< distance
; i
++)
2064 for (j
= 0; j
< term
->cols
; j
++)
2065 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
2067 save_scroll(term
, topline
, botline
, lines
);
2069 #endif /* OPTIMISE_SCROLL */
2072 * Move the cursor to a given position, clipping at boundaries. We
2073 * may or may not want to clip at the scroll margin: marg_clip is 0
2074 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
2075 * even _being_ outside the margins.
2077 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
2081 if (x
>= term
->cols
)
2084 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
2087 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
2093 if (y
>= term
->rows
)
2097 term
->wrapnext
= FALSE
;
2101 * Save or restore the cursor and SGR mode.
2103 static void save_cursor(Terminal
*term
, int save
)
2106 term
->savecurs
= term
->curs
;
2107 term
->save_attr
= term
->curr_attr
;
2108 term
->save_cset
= term
->cset
;
2109 term
->save_utf
= term
->utf
;
2110 term
->save_wnext
= term
->wrapnext
;
2111 term
->save_csattr
= term
->cset_attr
[term
->cset
];
2112 term
->save_sco_acs
= term
->sco_acs
;
2114 term
->curs
= term
->savecurs
;
2115 /* Make sure the window hasn't shrunk since the save */
2116 if (term
->curs
.x
>= term
->cols
)
2117 term
->curs
.x
= term
->cols
- 1;
2118 if (term
->curs
.y
>= term
->rows
)
2119 term
->curs
.y
= term
->rows
- 1;
2121 term
->curr_attr
= term
->save_attr
;
2122 term
->cset
= term
->save_cset
;
2123 term
->utf
= term
->save_utf
;
2124 term
->wrapnext
= term
->save_wnext
;
2126 * wrapnext might reset to False if the x position is no
2127 * longer at the rightmost edge.
2129 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
2130 term
->wrapnext
= FALSE
;
2131 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
2132 term
->sco_acs
= term
->save_sco_acs
;
2133 set_erase_char(term
);
2138 * This function is called before doing _anything_ which affects
2139 * only part of a line of text. It is used to mark the boundary
2140 * between two character positions, and it indicates that some sort
2141 * of effect is going to happen on only one side of that boundary.
2143 * The effect of this function is to check whether a CJK
2144 * double-width character is straddling the boundary, and to remove
2145 * it and replace it with two spaces if so. (Of course, one or
2146 * other of those spaces is then likely to be replaced with
2147 * something else again, as a result of whatever happens next.)
2149 * Also, if the boundary is at the right-hand _edge_ of the screen,
2150 * it implies something deliberate is being done to the rightmost
2151 * column position; hence we must clear LATTR_WRAPPED2.
2153 * The input to the function is the coordinates of the _second_
2154 * character of the pair.
2156 static void check_boundary(Terminal
*term
, int x
, int y
)
2160 /* Validate input coordinates, just in case. */
2161 if (x
== 0 || x
> term
->cols
)
2164 ldata
= scrlineptr(y
);
2165 if (x
== term
->cols
) {
2166 ldata
->lattr
&= ~LATTR_WRAPPED2
;
2168 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
2169 clear_cc(ldata
, x
-1);
2171 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
2172 ldata
->chars
[x
] = ldata
->chars
[x
-1];
2178 * Erase a large portion of the screen: the whole screen, or the
2179 * whole line, or parts thereof.
2181 static void erase_lots(Terminal
*term
,
2182 int line_only
, int from_begin
, int to_end
)
2186 int erasing_lines_from_top
= 0;
2189 start
.y
= term
->curs
.y
;
2191 end
.y
= term
->curs
.y
+ 1;
2193 erase_lattr
= FALSE
;
2208 if (!from_begin
|| !to_end
)
2209 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2210 check_selection(term
, start
, end
);
2212 /* Clear screen also forces a full window redraw, just in case. */
2213 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
2214 term_invalidate(term
);
2216 /* Lines scrolled away shouldn't be brought back on if the terminal
2218 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
2219 erasing_lines_from_top
= 1;
2221 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
2222 /* If it's a whole number of lines, starting at the top, and
2223 * we're fully erasing them, erase by scrolling and keep the
2224 * lines in the scrollback. */
2225 int scrolllines
= end
.y
;
2226 if (end
.y
== term
->rows
) {
2227 /* Shrink until we find a non-empty row.*/
2228 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
2230 if (scrolllines
> 0)
2231 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
2233 termline
*ldata
= scrlineptr(start
.y
);
2234 while (poslt(start
, end
)) {
2235 if (start
.x
== term
->cols
) {
2237 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
2239 ldata
->lattr
= LATTR_NORM
;
2241 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
2243 if (incpos(start
) && start
.y
< term
->rows
) {
2244 ldata
= scrlineptr(start
.y
);
2249 /* After an erase of lines from the top of the screen, we shouldn't
2250 * bring the lines back again if the terminal enlarges (since the user or
2251 * application has explictly thrown them away). */
2252 if (erasing_lines_from_top
&& !(term
->alt_which
))
2253 term
->tempsblines
= 0;
2257 * Insert or delete characters within the current line. n is +ve if
2258 * insertion is desired, and -ve for deletion.
2260 static void insch(Terminal
*term
, int n
)
2262 int dir
= (n
< 0 ?
-1 : +1);
2267 n
= (n
< 0 ?
-n
: n
);
2268 if (n
> term
->cols
- term
->curs
.x
)
2269 n
= term
->cols
- term
->curs
.x
;
2270 m
= term
->cols
- term
->curs
.x
- n
;
2271 cursplus
.y
= term
->curs
.y
;
2272 cursplus
.x
= term
->curs
.x
+ n
;
2273 check_selection(term
, term
->curs
, cursplus
);
2274 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2276 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2277 ldata
= scrlineptr(term
->curs
.y
);
2279 for (j
= 0; j
< m
; j
++)
2280 move_termchar(ldata
,
2281 ldata
->chars
+ term
->curs
.x
+ j
,
2282 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2284 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2287 move_termchar(ldata
,
2288 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2289 ldata
->chars
+ term
->curs
.x
+ j
);
2291 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2296 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2297 * whether the mode is a DEC private one or a normal one.)
2299 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2303 case 1: /* DECCKM: application cursor keys */
2304 term
->app_cursor_keys
= state
;
2306 case 2: /* DECANM: VT52 mode */
2307 term
->vt52_mode
= !state
;
2308 if (term
->vt52_mode
) {
2309 term
->blink_is_real
= FALSE
;
2310 term
->vt52_bold
= FALSE
;
2312 term
->blink_is_real
= term
->cfg
.blinktext
;
2314 term_schedule_tblink(term
);
2316 case 3: /* DECCOLM: 80/132 columns */
2318 if (!term
->cfg
.no_remote_resize
)
2319 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2320 term
->reset_132
= state
;
2321 term
->alt_t
= term
->marg_t
= 0;
2322 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2323 move(term
, 0, 0, 0);
2324 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2326 case 5: /* DECSCNM: reverse video */
2328 * Toggle reverse video. If we receive an OFF within the
2329 * visual bell timeout period after an ON, we trigger an
2330 * effective visual bell, so that ESC[?5hESC[?5l will
2331 * always be an actually _visible_ visual bell.
2333 if (term
->rvideo
&& !state
) {
2334 /* This is an OFF, so set up a vbell */
2335 term_schedule_vbell(term
, TRUE
, term
->rvbell_startpoint
);
2336 } else if (!term
->rvideo
&& state
) {
2337 /* This is an ON, so we notice the time and save it. */
2338 term
->rvbell_startpoint
= GETTICKCOUNT();
2340 term
->rvideo
= state
;
2341 seen_disp_event(term
);
2343 case 6: /* DECOM: DEC origin mode */
2344 term
->dec_om
= state
;
2346 case 7: /* DECAWM: auto wrap */
2349 case 8: /* DECARM: auto key repeat */
2350 term
->repeat_off
= !state
;
2352 case 10: /* DECEDM: set local edit mode */
2353 term
->term_editing
= state
;
2354 if (term
->ldisc
) /* cause ldisc to notice changes */
2355 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2357 case 25: /* DECTCEM: enable/disable cursor */
2358 compatibility2(OTHER
, VT220
);
2359 term
->cursor_on
= state
;
2360 seen_disp_event(term
);
2362 case 47: /* alternate screen */
2363 compatibility(OTHER
);
2365 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2368 case 1000: /* xterm mouse 1 */
2369 term
->xterm_mouse
= state ?
1 : 0;
2370 set_raw_mouse_mode(term
->frontend
, state
);
2372 case 1002: /* xterm mouse 2 */
2373 term
->xterm_mouse
= state ?
2 : 0;
2374 set_raw_mouse_mode(term
->frontend
, state
);
2376 case 1047: /* alternate screen */
2377 compatibility(OTHER
);
2379 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2382 case 1048: /* save/restore cursor */
2383 if (!term
->cfg
.no_alt_screen
)
2384 save_cursor(term
, state
);
2385 if (!state
) seen_disp_event(term
);
2387 case 1049: /* cursor & alternate screen */
2388 if (state
&& !term
->cfg
.no_alt_screen
)
2389 save_cursor(term
, state
);
2390 if (!state
) seen_disp_event(term
);
2391 compatibility(OTHER
);
2393 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2394 if (!state
&& !term
->cfg
.no_alt_screen
)
2395 save_cursor(term
, state
);
2400 case 4: /* IRM: set insert mode */
2401 compatibility(VT102
);
2402 term
->insert
= state
;
2404 case 12: /* SRM: set echo mode */
2405 term
->term_echoing
= !state
;
2406 if (term
->ldisc
) /* cause ldisc to notice changes */
2407 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2409 case 20: /* LNM: Return sends ... */
2410 term
->cr_lf_return
= state
;
2412 case 34: /* WYULCURM: Make cursor BIG */
2413 compatibility2(OTHER
, VT220
);
2414 term
->big_cursor
= !state
;
2419 * Process an OSC sequence: set window title or icon name.
2421 static void do_osc(Terminal
*term
)
2424 while (term
->osc_strlen
--)
2425 term
->wordness
[(unsigned char)
2426 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2428 term
->osc_string
[term
->osc_strlen
] = '\0';
2429 switch (term
->esc_args
[0]) {
2432 if (!term
->cfg
.no_remote_wintitle
)
2433 set_icon(term
->frontend
, term
->osc_string
);
2434 if (term
->esc_args
[0] == 1)
2436 /* fall through: parameter 0 means set both */
2439 if (!term
->cfg
.no_remote_wintitle
)
2440 set_title(term
->frontend
, term
->osc_string
);
2447 * ANSI printing routines.
2449 static void term_print_setup(Terminal
*term
)
2451 bufchain_clear(&term
->printer_buf
);
2452 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2454 static void term_print_flush(Terminal
*term
)
2459 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2460 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2463 printer_job_data(term
->print_job
, data
, len
);
2464 bufchain_consume(&term
->printer_buf
, len
);
2467 static void term_print_finish(Terminal
*term
)
2473 if (!term
->printing
&& !term
->only_printing
)
2474 return; /* we need do nothing */
2476 term_print_flush(term
);
2477 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2478 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2480 if (c
== '\033' || c
== '\233') {
2481 bufchain_consume(&term
->printer_buf
, size
);
2484 printer_job_data(term
->print_job
, &c
, 1);
2485 bufchain_consume(&term
->printer_buf
, 1);
2488 printer_finish_job(term
->print_job
);
2489 term
->print_job
= NULL
;
2490 term
->printing
= term
->only_printing
= FALSE
;
2494 * Remove everything currently in `inbuf' and stick it up on the
2495 * in-memory display. There's a big state machine in here to
2496 * process escape sequences...
2498 static void term_out(Terminal
*term
)
2502 unsigned char localbuf
[256], *chars
;
2507 chars
= NULL
; /* placate compiler warnings */
2508 while (nchars
> 0 || unget
!= -1 || bufchain_size(&term
->inbuf
) > 0) {
2512 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2513 if (nchars
> sizeof(localbuf
))
2514 nchars
= sizeof(localbuf
);
2515 memcpy(localbuf
, ret
, nchars
);
2516 bufchain_consume(&term
->inbuf
, nchars
);
2518 assert(chars
!= NULL
);
2524 * Optionally log the session traffic to a file. Useful for
2525 * debugging and possibly also useful for actual logging.
2527 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2528 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2534 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2535 * be able to display 8-bit characters, but I'll let that go 'cause
2540 * If we're printing, add the character to the printer
2543 if (term
->printing
) {
2544 bufchain_add(&term
->printer_buf
, &c
, 1);
2547 * If we're in print-only mode, we use a much simpler
2548 * state machine designed only to recognise the ESC[4i
2549 * termination sequence.
2551 if (term
->only_printing
) {
2553 term
->print_state
= 1;
2554 else if (c
== (unsigned char)'\233')
2555 term
->print_state
= 2;
2556 else if (c
== '[' && term
->print_state
== 1)
2557 term
->print_state
= 2;
2558 else if (c
== '4' && term
->print_state
== 2)
2559 term
->print_state
= 3;
2560 else if (c
== 'i' && term
->print_state
== 3)
2561 term
->print_state
= 4;
2563 term
->print_state
= 0;
2564 if (term
->print_state
== 4) {
2565 term_print_finish(term
);
2571 /* First see about all those translations. */
2572 if (term
->termstate
== TOPLEVEL
) {
2574 switch (term
->utf_state
) {
2577 /* UTF-8 must be stateless so we ignore iso2022. */
2578 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2579 c
= term
->ucsdata
->unitab_ctrl
[c
];
2580 else c
= ((unsigned char)c
) | CSET_ASCII
;
2582 } else if ((c
& 0xe0) == 0xc0) {
2583 term
->utf_size
= term
->utf_state
= 1;
2584 term
->utf_char
= (c
& 0x1f);
2585 } else if ((c
& 0xf0) == 0xe0) {
2586 term
->utf_size
= term
->utf_state
= 2;
2587 term
->utf_char
= (c
& 0x0f);
2588 } else if ((c
& 0xf8) == 0xf0) {
2589 term
->utf_size
= term
->utf_state
= 3;
2590 term
->utf_char
= (c
& 0x07);
2591 } else if ((c
& 0xfc) == 0xf8) {
2592 term
->utf_size
= term
->utf_state
= 4;
2593 term
->utf_char
= (c
& 0x03);
2594 } else if ((c
& 0xfe) == 0xfc) {
2595 term
->utf_size
= term
->utf_state
= 5;
2596 term
->utf_char
= (c
& 0x01);
2607 if ((c
& 0xC0) != 0x80) {
2610 term
->utf_state
= 0;
2613 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2614 if (--term
->utf_state
)
2619 /* Is somebody trying to be evil! */
2621 (c
< 0x800 && term
->utf_size
>= 2) ||
2622 (c
< 0x10000 && term
->utf_size
>= 3) ||
2623 (c
< 0x200000 && term
->utf_size
>= 4) ||
2624 (c
< 0x4000000 && term
->utf_size
>= 5))
2627 /* Unicode line separator and paragraph separator are CR-LF */
2628 if (c
== 0x2028 || c
== 0x2029)
2631 /* High controls are probably a Baaad idea too. */
2635 /* The UTF-16 surrogates are not nice either. */
2636 /* The standard give the option of decoding these:
2637 * I don't want to! */
2638 if (c
>= 0xD800 && c
< 0xE000)
2641 /* ISO 10646 characters now limited to UTF-16 range. */
2645 /* This is currently a TagPhobic application.. */
2646 if (c
>= 0xE0000 && c
<= 0xE007F)
2649 /* U+FEFF is best seen as a null. */
2652 /* But U+FFFE is an error. */
2653 if (c
== 0xFFFE || c
== 0xFFFF)
2658 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2659 else if(term
->sco_acs
&&
2660 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2662 if (term
->sco_acs
== 2) c
|= 0x80;
2665 switch (term
->cset_attr
[term
->cset
]) {
2667 * Linedraw characters are different from 'ESC ( B'
2668 * only for a small range. For ones outside that
2669 * range, make sure we use the same font as well as
2670 * the same encoding.
2673 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2674 c
= term
->ucsdata
->unitab_ctrl
[c
];
2676 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2680 /* If UK-ASCII, make the '#' a LineDraw Pound */
2682 c
= '}' | CSET_LINEDRW
;
2685 /*FALLTHROUGH*/ case CSET_ASCII
:
2686 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2687 c
= term
->ucsdata
->unitab_ctrl
[c
];
2689 c
= ((unsigned char) c
) | CSET_ASCII
;
2692 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2699 * How about C1 controls?
2700 * Explicitly ignore SCI (0x9a), which we don't translate to DECID.
2702 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2703 !term
->vt52_mode
&& has_compat(VT220
)) {
2707 term
->termstate
= SEEN_ESC
;
2708 term
->esc_query
= FALSE
;
2709 c
= '@' + (c
& 0x1F);
2713 /* Or the GL control. */
2714 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2715 if (term
->curs
.x
&& !term
->wrapnext
)
2717 term
->wrapnext
= FALSE
;
2718 /* destructive backspace might be disabled */
2719 if (!term
->cfg
.no_dbackspace
) {
2720 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2721 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2722 copy_termchar(scrlineptr(term
->curs
.y
),
2723 term
->curs
.x
, &term
->erase_char
);
2726 /* Or normal C0 controls. */
2727 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2729 case '\005': /* ENQ: terminal type query */
2731 * Strictly speaking this is VT100 but a VT100 defaults to
2732 * no response. Other terminals respond at their option.
2734 * Don't put a CR in the default string as this tends to
2735 * upset some weird software.
2737 compatibility(ANSIMIN
);
2739 char abuf
[lenof(term
->cfg
.answerback
)], *s
, *d
;
2740 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
;) {
2742 char c
= ctrlparse(s
, &n
);
2750 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2754 case '\007': /* BEL: Bell */
2756 struct beeptime
*newbeep
;
2757 unsigned long ticks
;
2759 ticks
= GETTICKCOUNT();
2761 if (!term
->beep_overloaded
) {
2762 newbeep
= snew(struct beeptime
);
2763 newbeep
->ticks
= ticks
;
2764 newbeep
->next
= NULL
;
2765 if (!term
->beephead
)
2766 term
->beephead
= newbeep
;
2768 term
->beeptail
->next
= newbeep
;
2769 term
->beeptail
= newbeep
;
2774 * Throw out any beeps that happened more than
2777 while (term
->beephead
&&
2778 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2779 struct beeptime
*tmp
= term
->beephead
;
2780 term
->beephead
= tmp
->next
;
2782 if (!term
->beephead
)
2783 term
->beeptail
= NULL
;
2787 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2788 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2790 * If we're currently overloaded and the
2791 * last beep was more than s seconds ago,
2792 * leave overload mode.
2794 term
->beep_overloaded
= FALSE
;
2795 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2796 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2798 * Now, if we have n or more beeps
2799 * remaining in the queue, go into overload
2802 term
->beep_overloaded
= TRUE
;
2804 term
->lastbeep
= ticks
;
2807 * Perform an actual beep if we're not overloaded.
2809 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2810 do_beep(term
->frontend
, term
->cfg
.beep
);
2812 if (term
->cfg
.beep
== BELL_VISUAL
) {
2813 term_schedule_vbell(term
, FALSE
, 0);
2816 seen_disp_event(term
);
2819 case '\b': /* BS: Back space */
2820 if (term
->curs
.x
== 0 &&
2821 (term
->curs
.y
== 0 || term
->wrap
== 0))
2823 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2824 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2825 else if (term
->wrapnext
)
2826 term
->wrapnext
= FALSE
;
2829 seen_disp_event(term
);
2831 case '\016': /* LS1: Locking-shift one */
2832 compatibility(VT100
);
2835 case '\017': /* LS0: Locking-shift zero */
2836 compatibility(VT100
);
2839 case '\033': /* ESC: Escape */
2840 if (term
->vt52_mode
)
2841 term
->termstate
= VT52_ESC
;
2843 compatibility(ANSIMIN
);
2844 term
->termstate
= SEEN_ESC
;
2845 term
->esc_query
= FALSE
;
2848 case '\015': /* CR: Carriage return */
2850 term
->wrapnext
= FALSE
;
2851 seen_disp_event(term
);
2852 term
->paste_hold
= 0;
2854 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2856 case '\014': /* FF: Form feed */
2857 if (has_compat(SCOANSI
)) {
2858 move(term
, 0, 0, 0);
2859 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2861 term
->wrapnext
= FALSE
;
2862 seen_disp_event(term
);
2865 case '\013': /* VT: Line tabulation */
2866 compatibility(VT100
);
2867 case '\012': /* LF: Line feed */
2868 if (term
->curs
.y
== term
->marg_b
)
2869 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2870 else if (term
->curs
.y
< term
->rows
- 1)
2872 if (term
->cfg
.lfhascr
)
2874 term
->wrapnext
= FALSE
;
2875 seen_disp_event(term
);
2876 term
->paste_hold
= 0;
2878 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2880 case '\t': /* HT: Character tabulation */
2882 pos old_curs
= term
->curs
;
2883 termline
*ldata
= scrlineptr(term
->curs
.y
);
2887 } while (term
->curs
.x
< term
->cols
- 1 &&
2888 !term
->tabs
[term
->curs
.x
]);
2890 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2891 if (term
->curs
.x
>= term
->cols
/ 2)
2892 term
->curs
.x
= term
->cols
/ 2 - 1;
2894 if (term
->curs
.x
>= term
->cols
)
2895 term
->curs
.x
= term
->cols
- 1;
2898 check_selection(term
, old_curs
, term
->curs
);
2900 seen_disp_event(term
);
2904 switch (term
->termstate
) {
2906 /* Only graphic characters get this far;
2907 * ctrls are stripped above */
2909 termline
*cline
= scrlineptr(term
->curs
.y
);
2914 width
= (term
->cfg
.cjk_ambig_wide ?
2915 mk_wcwidth_cjk((wchar_t) c
) :
2916 mk_wcwidth((wchar_t) c
));
2918 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2919 cline
->lattr
|= LATTR_WRAPPED
;
2920 if (term
->curs
.y
== term
->marg_b
)
2921 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2922 else if (term
->curs
.y
< term
->rows
- 1)
2925 term
->wrapnext
= FALSE
;
2926 cline
= scrlineptr(term
->curs
.y
);
2928 if (term
->insert
&& width
> 0)
2930 if (term
->selstate
!= NO_SELECTION
) {
2931 pos cursplus
= term
->curs
;
2933 check_selection(term
, term
->curs
, cursplus
);
2935 if (((c
& CSET_MASK
) == CSET_ASCII
||
2936 (c
& CSET_MASK
) == 0) &&
2938 logtraffic(term
->logctx
, (unsigned char) c
,
2944 * If we're about to display a double-width
2945 * character starting in the rightmost
2946 * column, then we do something special
2947 * instead. We must print a space in the
2948 * last column of the screen, then wrap;
2949 * and we also set LATTR_WRAPPED2 which
2950 * instructs subsequent cut-and-pasting not
2951 * only to splice this line to the one
2952 * after it, but to ignore the space in the
2953 * last character position as well.
2954 * (Because what was actually output to the
2955 * terminal was presumably just a sequence
2956 * of CJK characters, and we don't want a
2957 * space to be pasted in the middle of
2958 * those just because they had the
2959 * misfortune to start in the wrong parity
2960 * column. xterm concurs.)
2962 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2963 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2964 if (term
->curs
.x
== term
->cols
-1) {
2965 copy_termchar(cline
, term
->curs
.x
,
2967 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2968 if (term
->curs
.y
== term
->marg_b
)
2969 scroll(term
, term
->marg_t
, term
->marg_b
,
2971 else if (term
->curs
.y
< term
->rows
- 1)
2974 cline
= scrlineptr(term
->curs
.y
);
2975 /* Now we must check_boundary again, of course. */
2976 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2977 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2981 clear_cc(cline
, term
->curs
.x
);
2982 cline
->chars
[term
->curs
.x
].chr
= c
;
2983 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2988 clear_cc(cline
, term
->curs
.x
);
2989 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2990 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2994 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2995 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2998 clear_cc(cline
, term
->curs
.x
);
2999 cline
->chars
[term
->curs
.x
].chr
= c
;
3000 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
3004 if (term
->curs
.x
> 0) {
3005 int x
= term
->curs
.x
- 1;
3007 /* If we're in wrapnext state, the character
3008 * to combine with is _here_, not to our left. */
3013 * If the previous character is
3014 * UCSWIDE, back up another one.
3016 if (cline
->chars
[x
].chr
== UCSWIDE
) {
3021 add_cc(cline
, x
, c
);
3022 seen_disp_event(term
);
3029 if (term
->curs
.x
== term
->cols
) {
3031 term
->wrapnext
= TRUE
;
3032 if (term
->wrap
&& term
->vt52_mode
) {
3033 cline
->lattr
|= LATTR_WRAPPED
;
3034 if (term
->curs
.y
== term
->marg_b
)
3035 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3036 else if (term
->curs
.y
< term
->rows
- 1)
3039 term
->wrapnext
= FALSE
;
3042 seen_disp_event(term
);
3048 * This state is virtually identical to SEEN_ESC, with the
3049 * exception that we have an OSC sequence in the pipeline,
3050 * and _if_ we see a backslash, we process it.
3054 term
->termstate
= TOPLEVEL
;
3057 /* else fall through */
3059 if (c
>= ' ' && c
<= '/') {
3060 if (term
->esc_query
)
3061 term
->esc_query
= -1;
3063 term
->esc_query
= c
;
3066 term
->termstate
= TOPLEVEL
;
3067 switch (ANSI(c
, term
->esc_query
)) {
3068 case '[': /* enter CSI mode */
3069 term
->termstate
= SEEN_CSI
;
3070 term
->esc_nargs
= 1;
3071 term
->esc_args
[0] = ARG_DEFAULT
;
3072 term
->esc_query
= FALSE
;
3074 case ']': /* OSC: xterm escape sequences */
3075 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
3076 compatibility(OTHER
);
3077 term
->termstate
= SEEN_OSC
;
3078 term
->esc_args
[0] = 0;
3080 case '7': /* DECSC: save cursor */
3081 compatibility(VT100
);
3082 save_cursor(term
, TRUE
);
3084 case '8': /* DECRC: restore cursor */
3085 compatibility(VT100
);
3086 save_cursor(term
, FALSE
);
3087 seen_disp_event(term
);
3089 case '=': /* DECKPAM: Keypad application mode */
3090 compatibility(VT100
);
3091 term
->app_keypad_keys
= TRUE
;
3093 case '>': /* DECKPNM: Keypad numeric mode */
3094 compatibility(VT100
);
3095 term
->app_keypad_keys
= FALSE
;
3097 case 'D': /* IND: exactly equivalent to LF */
3098 compatibility(VT100
);
3099 if (term
->curs
.y
== term
->marg_b
)
3100 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3101 else if (term
->curs
.y
< term
->rows
- 1)
3103 term
->wrapnext
= FALSE
;
3104 seen_disp_event(term
);
3106 case 'E': /* NEL: exactly equivalent to CR-LF */
3107 compatibility(VT100
);
3109 if (term
->curs
.y
== term
->marg_b
)
3110 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3111 else if (term
->curs
.y
< term
->rows
- 1)
3113 term
->wrapnext
= FALSE
;
3114 seen_disp_event(term
);
3116 case 'M': /* RI: reverse index - backwards LF */
3117 compatibility(VT100
);
3118 if (term
->curs
.y
== term
->marg_t
)
3119 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
3120 else if (term
->curs
.y
> 0)
3122 term
->wrapnext
= FALSE
;
3123 seen_disp_event(term
);
3125 case 'Z': /* DECID: terminal type query */
3126 compatibility(VT100
);
3128 ldisc_send(term
->ldisc
, term
->id_string
,
3129 strlen(term
->id_string
), 0);
3131 case 'c': /* RIS: restore power-on settings */
3132 compatibility(VT100
);
3133 power_on(term
, TRUE
);
3134 if (term
->ldisc
) /* cause ldisc to notice changes */
3135 ldisc_send(term
->ldisc
, NULL
, 0, 0);
3136 if (term
->reset_132
) {
3137 if (!term
->cfg
.no_remote_resize
)
3138 request_resize(term
->frontend
, 80, term
->rows
);
3139 term
->reset_132
= 0;
3142 seen_disp_event(term
);
3144 case 'H': /* HTS: set a tab */
3145 compatibility(VT100
);
3146 term
->tabs
[term
->curs
.x
] = TRUE
;
3149 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
3150 compatibility(VT100
);
3156 for (i
= 0; i
< term
->rows
; i
++) {
3157 ldata
= scrlineptr(i
);
3158 for (j
= 0; j
< term
->cols
; j
++) {
3159 copy_termchar(ldata
, j
,
3160 &term
->basic_erase_char
);
3161 ldata
->chars
[j
].chr
= 'E';
3163 ldata
->lattr
= LATTR_NORM
;
3166 seen_disp_event(term
);
3167 scrtop
.x
= scrtop
.y
= 0;
3169 scrbot
.y
= term
->rows
;
3170 check_selection(term
, scrtop
, scrbot
);
3174 case ANSI('3', '#'):
3175 case ANSI('4', '#'):
3176 case ANSI('5', '#'):
3177 case ANSI('6', '#'):
3178 compatibility(VT100
);
3182 switch (ANSI(c
, term
->esc_query
)) {
3183 case ANSI('3', '#'): /* DECDHL: 2*height, top */
3186 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
3189 case ANSI('5', '#'): /* DECSWL: normal */
3190 nlattr
= LATTR_NORM
;
3192 default: /* case ANSI('6', '#'): DECDWL: 2*width */
3193 nlattr
= LATTR_WIDE
;
3196 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
3199 /* GZD4: G0 designate 94-set */
3200 case ANSI('A', '('):
3201 compatibility(VT100
);
3202 if (!term
->cfg
.no_remote_charset
)
3203 term
->cset_attr
[0] = CSET_GBCHR
;
3205 case ANSI('B', '('):
3206 compatibility(VT100
);
3207 if (!term
->cfg
.no_remote_charset
)
3208 term
->cset_attr
[0] = CSET_ASCII
;
3210 case ANSI('0', '('):
3211 compatibility(VT100
);
3212 if (!term
->cfg
.no_remote_charset
)
3213 term
->cset_attr
[0] = CSET_LINEDRW
;
3215 case ANSI('U', '('):
3216 compatibility(OTHER
);
3217 if (!term
->cfg
.no_remote_charset
)
3218 term
->cset_attr
[0] = CSET_SCOACS
;
3220 /* G1D4: G1-designate 94-set */
3221 case ANSI('A', ')'):
3222 compatibility(VT100
);
3223 if (!term
->cfg
.no_remote_charset
)
3224 term
->cset_attr
[1] = CSET_GBCHR
;
3226 case ANSI('B', ')'):
3227 compatibility(VT100
);
3228 if (!term
->cfg
.no_remote_charset
)
3229 term
->cset_attr
[1] = CSET_ASCII
;
3231 case ANSI('0', ')'):
3232 compatibility(VT100
);
3233 if (!term
->cfg
.no_remote_charset
)
3234 term
->cset_attr
[1] = CSET_LINEDRW
;
3236 case ANSI('U', ')'):
3237 compatibility(OTHER
);
3238 if (!term
->cfg
.no_remote_charset
)
3239 term
->cset_attr
[1] = CSET_SCOACS
;
3241 /* DOCS: Designate other coding system */
3242 case ANSI('8', '%'): /* Old Linux code */
3243 case ANSI('G', '%'):
3244 compatibility(OTHER
);
3245 if (!term
->cfg
.no_remote_charset
)
3248 case ANSI('@', '%'):
3249 compatibility(OTHER
);
3250 if (!term
->cfg
.no_remote_charset
)
3256 term
->termstate
= TOPLEVEL
; /* default */
3258 if (term
->esc_nargs
<= ARGS_MAX
) {
3259 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3260 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3261 term
->esc_args
[term
->esc_nargs
- 1] =
3262 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3264 term
->termstate
= SEEN_CSI
;
3265 } else if (c
== ';') {
3266 if (++term
->esc_nargs
<= ARGS_MAX
)
3267 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
3268 term
->termstate
= SEEN_CSI
;
3269 } else if (c
< '@') {
3270 if (term
->esc_query
)
3271 term
->esc_query
= -1;
3273 term
->esc_query
= TRUE
;
3275 term
->esc_query
= c
;
3276 term
->termstate
= SEEN_CSI
;
3278 switch (ANSI(c
, term
->esc_query
)) {
3279 case 'A': /* CUU: move up N lines */
3280 move(term
, term
->curs
.x
,
3281 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3282 seen_disp_event(term
);
3284 case 'e': /* VPR: move down N lines */
3285 compatibility(ANSI
);
3287 case 'B': /* CUD: Cursor down */
3288 move(term
, term
->curs
.x
,
3289 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3290 seen_disp_event(term
);
3292 case ANSI('c', '>'): /* DA: report xterm version */
3293 compatibility(OTHER
);
3294 /* this reports xterm version 136 so that VIM can
3295 use the drag messages from the mouse reporting */
3297 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3299 case 'a': /* HPR: move right N cols */
3300 compatibility(ANSI
);
3302 case 'C': /* CUF: Cursor right */
3303 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3305 seen_disp_event(term
);
3307 case 'D': /* CUB: move left N cols */
3308 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3310 seen_disp_event(term
);
3312 case 'E': /* CNL: move down N lines and CR */
3313 compatibility(ANSI
);
3315 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3316 seen_disp_event(term
);
3318 case 'F': /* CPL: move up N lines and CR */
3319 compatibility(ANSI
);
3321 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3322 seen_disp_event(term
);
3325 case '`': /* HPA: set horizontal posn */
3326 compatibility(ANSI
);
3327 move(term
, def(term
->esc_args
[0], 1) - 1,
3329 seen_disp_event(term
);
3331 case 'd': /* VPA: set vertical posn */
3332 compatibility(ANSI
);
3333 move(term
, term
->curs
.x
,
3334 ((term
->dec_om ? term
->marg_t
: 0) +
3335 def(term
->esc_args
[0], 1) - 1),
3336 (term
->dec_om ?
2 : 0));
3337 seen_disp_event(term
);
3340 case 'f': /* HVP: set horz and vert posns at once */
3341 if (term
->esc_nargs
< 2)
3342 term
->esc_args
[1] = ARG_DEFAULT
;
3343 move(term
, def(term
->esc_args
[1], 1) - 1,
3344 ((term
->dec_om ? term
->marg_t
: 0) +
3345 def(term
->esc_args
[0], 1) - 1),
3346 (term
->dec_om ?
2 : 0));
3347 seen_disp_event(term
);
3349 case 'J': /* ED: erase screen or parts of it */
3351 unsigned int i
= def(term
->esc_args
[0], 0);
3353 /* Erase Saved Lines (xterm)
3354 * This follows Thomas Dickey's xterm. */
3360 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3364 seen_disp_event(term
);
3366 case 'K': /* EL: erase line or parts of it */
3368 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3371 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3373 seen_disp_event(term
);
3375 case 'L': /* IL: insert lines */
3376 compatibility(VT102
);
3377 if (term
->curs
.y
<= term
->marg_b
)
3378 scroll(term
, term
->curs
.y
, term
->marg_b
,
3379 -def(term
->esc_args
[0], 1), FALSE
);
3380 seen_disp_event(term
);
3382 case 'M': /* DL: delete lines */
3383 compatibility(VT102
);
3384 if (term
->curs
.y
<= term
->marg_b
)
3385 scroll(term
, term
->curs
.y
, term
->marg_b
,
3386 def(term
->esc_args
[0], 1),
3388 seen_disp_event(term
);
3390 case '@': /* ICH: insert chars */
3391 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3392 compatibility(VT102
);
3393 insch(term
, def(term
->esc_args
[0], 1));
3394 seen_disp_event(term
);
3396 case 'P': /* DCH: delete chars */
3397 compatibility(VT102
);
3398 insch(term
, -def(term
->esc_args
[0], 1));
3399 seen_disp_event(term
);
3401 case 'c': /* DA: terminal type query */
3402 compatibility(VT100
);
3403 /* This is the response for a VT102 */
3405 ldisc_send(term
->ldisc
, term
->id_string
,
3406 strlen(term
->id_string
), 0);
3408 case 'n': /* DSR: cursor position query */
3410 if (term
->esc_args
[0] == 6) {
3412 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3414 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3415 } else if (term
->esc_args
[0] == 5) {
3416 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3420 case 'h': /* SM: toggle modes to high */
3422 compatibility(VT100
);
3425 for (i
= 0; i
< term
->esc_nargs
; i
++)
3426 toggle_mode(term
, term
->esc_args
[i
],
3427 term
->esc_query
, TRUE
);
3430 case 'i': /* MC: Media copy */
3432 compatibility(VT100
);
3434 if (term
->esc_nargs
!= 1) break;
3435 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3436 term
->printing
= TRUE
;
3437 term
->only_printing
= !term
->esc_query
;
3438 term
->print_state
= 0;
3439 term_print_setup(term
);
3440 } else if (term
->esc_args
[0] == 4 &&
3442 term_print_finish(term
);
3446 case 'l': /* RM: toggle modes to low */
3448 compatibility(VT100
);
3451 for (i
= 0; i
< term
->esc_nargs
; i
++)
3452 toggle_mode(term
, term
->esc_args
[i
],
3453 term
->esc_query
, FALSE
);
3456 case 'g': /* TBC: clear tabs */
3457 compatibility(VT100
);
3458 if (term
->esc_nargs
== 1) {
3459 if (term
->esc_args
[0] == 0) {
3460 term
->tabs
[term
->curs
.x
] = FALSE
;
3461 } else if (term
->esc_args
[0] == 3) {
3463 for (i
= 0; i
< term
->cols
; i
++)
3464 term
->tabs
[i
] = FALSE
;
3468 case 'r': /* DECSTBM: set scroll margins */
3469 compatibility(VT100
);
3470 if (term
->esc_nargs
<= 2) {
3472 top
= def(term
->esc_args
[0], 1) - 1;
3473 bot
= (term
->esc_nargs
<= 1
3474 || term
->esc_args
[1] == 0 ?
3476 def(term
->esc_args
[1], term
->rows
)) - 1;
3477 if (bot
>= term
->rows
)
3478 bot
= term
->rows
- 1;
3479 /* VTTEST Bug 9 - if region is less than 2 lines
3480 * don't change region.
3482 if (bot
- top
> 0) {
3487 * I used to think the cursor should be
3488 * placed at the top of the newly marginned
3489 * area. Apparently not: VMS TPU falls over
3492 * Well actually it should for
3495 term
->curs
.y
= (term
->dec_om ?
3497 seen_disp_event(term
);
3501 case 'm': /* SGR: set graphics rendition */
3504 * A VT100 without the AVO only had one
3505 * attribute, either underline or
3506 * reverse video depending on the
3507 * cursor type, this was selected by
3511 * This is sometimes DIM, eg on the
3514 * This is sometimes INVIS various ANSI.
3516 * This like 22 disables BOLD, DIM and INVIS
3518 * The ANSI colours appear on any
3519 * terminal that has colour (obviously)
3520 * but the interaction between sgr0 and
3521 * the colours varies but is usually
3522 * related to the background colour
3523 * erase item. The interaction between
3524 * colour attributes and the mono ones
3525 * is also very implementation
3528 * The 39 and 49 attributes are likely
3529 * to be unimplemented.
3532 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3533 switch (def(term
->esc_args
[i
], 0)) {
3534 case 0: /* restore defaults */
3535 term
->curr_attr
= term
->default_attr
;
3537 case 1: /* enable bold */
3538 compatibility(VT100AVO
);
3539 term
->curr_attr
|= ATTR_BOLD
;
3541 case 21: /* (enable double underline) */
3542 compatibility(OTHER
);
3543 case 4: /* enable underline */
3544 compatibility(VT100AVO
);
3545 term
->curr_attr
|= ATTR_UNDER
;
3547 case 5: /* enable blink */
3548 compatibility(VT100AVO
);
3549 term
->curr_attr
|= ATTR_BLINK
;
3551 case 6: /* SCO light bkgrd */
3552 compatibility(SCOANSI
);
3553 term
->blink_is_real
= FALSE
;
3554 term
->curr_attr
|= ATTR_BLINK
;
3555 term_schedule_tblink(term
);
3557 case 7: /* enable reverse video */
3558 term
->curr_attr
|= ATTR_REVERSE
;
3560 case 10: /* SCO acs off */
3561 compatibility(SCOANSI
);
3562 if (term
->cfg
.no_remote_charset
) break;
3563 term
->sco_acs
= 0; break;
3564 case 11: /* SCO acs on */
3565 compatibility(SCOANSI
);
3566 if (term
->cfg
.no_remote_charset
) break;
3567 term
->sco_acs
= 1; break;
3568 case 12: /* SCO acs on, |0x80 */
3569 compatibility(SCOANSI
);
3570 if (term
->cfg
.no_remote_charset
) break;
3571 term
->sco_acs
= 2; break;
3572 case 22: /* disable bold */
3573 compatibility2(OTHER
, VT220
);
3574 term
->curr_attr
&= ~ATTR_BOLD
;
3576 case 24: /* disable underline */
3577 compatibility2(OTHER
, VT220
);
3578 term
->curr_attr
&= ~ATTR_UNDER
;
3580 case 25: /* disable blink */
3581 compatibility2(OTHER
, VT220
);
3582 term
->curr_attr
&= ~ATTR_BLINK
;
3584 case 27: /* disable reverse video */
3585 compatibility2(OTHER
, VT220
);
3586 term
->curr_attr
&= ~ATTR_REVERSE
;
3597 term
->curr_attr
&= ~ATTR_FGMASK
;
3599 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3609 /* aixterm-style bright foreground */
3610 term
->curr_attr
&= ~ATTR_FGMASK
;
3612 ((term
->esc_args
[i
] - 90 + 8)
3615 case 39: /* default-foreground */
3616 term
->curr_attr
&= ~ATTR_FGMASK
;
3617 term
->curr_attr
|= ATTR_DEFFG
;
3628 term
->curr_attr
&= ~ATTR_BGMASK
;
3630 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3640 /* aixterm-style bright background */
3641 term
->curr_attr
&= ~ATTR_BGMASK
;
3643 ((term
->esc_args
[i
] - 100 + 8)
3646 case 49: /* default-background */
3647 term
->curr_attr
&= ~ATTR_BGMASK
;
3648 term
->curr_attr
|= ATTR_DEFBG
;
3650 case 38: /* xterm 256-colour mode */
3651 if (i
+2 < term
->esc_nargs
&&
3652 term
->esc_args
[i
+1] == 5) {
3653 term
->curr_attr
&= ~ATTR_FGMASK
;
3655 ((term
->esc_args
[i
+2] & 0xFF)
3660 case 48: /* xterm 256-colour mode */
3661 if (i
+2 < term
->esc_nargs
&&
3662 term
->esc_args
[i
+1] == 5) {
3663 term
->curr_attr
&= ~ATTR_BGMASK
;
3665 ((term
->esc_args
[i
+2] & 0xFF)
3672 set_erase_char(term
);
3675 case 's': /* save cursor */
3676 save_cursor(term
, TRUE
);
3678 case 'u': /* restore cursor */
3679 save_cursor(term
, FALSE
);
3680 seen_disp_event(term
);
3682 case 't': /* DECSLPP: set page size - ie window height */
3684 * VT340/VT420 sequence DECSLPP, DEC only allows values
3685 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3686 * illegal values (eg first arg 1..9) for window changing
3689 if (term
->esc_nargs
<= 1
3690 && (term
->esc_args
[0] < 1 ||
3691 term
->esc_args
[0] >= 24)) {
3692 compatibility(VT340TEXT
);
3693 if (!term
->cfg
.no_remote_resize
)
3694 request_resize(term
->frontend
, term
->cols
,
3695 def(term
->esc_args
[0], 24));
3697 } else if (term
->esc_nargs
>= 1 &&
3698 term
->esc_args
[0] >= 1 &&
3699 term
->esc_args
[0] < 24) {
3700 compatibility(OTHER
);
3702 switch (term
->esc_args
[0]) {
3706 set_iconic(term
->frontend
, FALSE
);
3709 set_iconic(term
->frontend
, TRUE
);
3712 if (term
->esc_nargs
>= 3) {
3713 if (!term
->cfg
.no_remote_resize
)
3714 move_window(term
->frontend
,
3715 def(term
->esc_args
[1], 0),
3716 def(term
->esc_args
[2], 0));
3720 /* We should resize the window to a given
3721 * size in pixels here, but currently our
3722 * resizing code isn't healthy enough to
3727 set_zorder(term
->frontend
, TRUE
);
3730 /* move to bottom */
3731 set_zorder(term
->frontend
, FALSE
);
3734 refresh_window(term
->frontend
);
3737 if (term
->esc_nargs
>= 3) {
3738 if (!term
->cfg
.no_remote_resize
)
3739 request_resize(term
->frontend
,
3740 def(term
->esc_args
[2], term
->cfg
.width
),
3741 def(term
->esc_args
[1], term
->cfg
.height
));
3745 if (term
->esc_nargs
>= 2)
3746 set_zoomed(term
->frontend
,
3752 ldisc_send(term
->ldisc
,
3753 is_iconic(term
->frontend
) ?
3754 "\033[1t" : "\033[2t", 4, 0);
3758 get_window_pos(term
->frontend
, &x
, &y
);
3759 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3760 ldisc_send(term
->ldisc
, buf
, len
, 0);
3765 get_window_pixels(term
->frontend
, &x
, &y
);
3766 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3767 ldisc_send(term
->ldisc
, buf
, len
, 0);
3772 len
= sprintf(buf
, "\033[8;%d;%dt",
3773 term
->rows
, term
->cols
);
3774 ldisc_send(term
->ldisc
, buf
, len
, 0);
3779 * Hmmm. Strictly speaking we
3780 * should return `the size of the
3781 * screen in characters', but
3782 * that's not easy: (a) window
3783 * furniture being what it is it's
3784 * hard to compute, and (b) in
3785 * resize-font mode maximising the
3786 * window wouldn't change the
3787 * number of characters. *shrug*. I
3788 * think we'll ignore it for the
3789 * moment and see if anyone
3790 * complains, and then ask them
3791 * what they would like it to do.
3796 term
->cfg
.remote_qtitle_action
!= TITLE_NONE
) {
3797 if(term
->cfg
.remote_qtitle_action
== TITLE_REAL
)
3798 p
= get_window_title(term
->frontend
, TRUE
);
3800 p
= EMPTY_WINDOW_TITLE
;
3802 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3803 ldisc_send(term
->ldisc
, p
, len
, 0);
3804 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3809 term
->cfg
.remote_qtitle_action
!= TITLE_NONE
) {
3810 if(term
->cfg
.remote_qtitle_action
== TITLE_REAL
)
3811 p
= get_window_title(term
->frontend
, FALSE
);
3813 p
= EMPTY_WINDOW_TITLE
;
3815 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3816 ldisc_send(term
->ldisc
, p
, len
, 0);
3817 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3823 case 'S': /* SU: Scroll up */
3824 compatibility(SCOANSI
);
3825 scroll(term
, term
->marg_t
, term
->marg_b
,
3826 def(term
->esc_args
[0], 1), TRUE
);
3827 term
->wrapnext
= FALSE
;
3828 seen_disp_event(term
);
3830 case 'T': /* SD: Scroll down */
3831 compatibility(SCOANSI
);
3832 scroll(term
, term
->marg_t
, term
->marg_b
,
3833 -def(term
->esc_args
[0], 1), TRUE
);
3834 term
->wrapnext
= FALSE
;
3835 seen_disp_event(term
);
3837 case ANSI('|', '*'): /* DECSNLS */
3839 * Set number of lines on screen
3840 * VT420 uses VGA like hardware and can
3841 * support any size in reasonable range
3842 * (24..49 AIUI) with no default specified.
3844 compatibility(VT420
);
3845 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3846 if (!term
->cfg
.no_remote_resize
)
3847 request_resize(term
->frontend
, term
->cols
,
3848 def(term
->esc_args
[0],
3853 case ANSI('|', '$'): /* DECSCPP */
3855 * Set number of columns per page
3856 * Docs imply range is only 80 or 132, but
3859 compatibility(VT340TEXT
);
3860 if (term
->esc_nargs
<= 1) {
3861 if (!term
->cfg
.no_remote_resize
)
3862 request_resize(term
->frontend
,
3863 def(term
->esc_args
[0],
3864 term
->cfg
.width
), term
->rows
);
3868 case 'X': /* ECH: write N spaces w/o moving cursor */
3869 /* XXX VTTEST says this is vt220, vt510 manual
3871 compatibility(ANSIMIN
);
3873 int n
= def(term
->esc_args
[0], 1);
3875 int p
= term
->curs
.x
;
3876 termline
*cline
= scrlineptr(term
->curs
.y
);
3878 if (n
> term
->cols
- term
->curs
.x
)
3879 n
= term
->cols
- term
->curs
.x
;
3880 cursplus
= term
->curs
;
3882 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3883 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3884 check_selection(term
, term
->curs
, cursplus
);
3886 copy_termchar(cline
, p
++,
3888 seen_disp_event(term
);
3891 case 'x': /* DECREQTPARM: report terminal characteristics */
3892 compatibility(VT100
);
3895 int i
= def(term
->esc_args
[0], 0);
3896 if (i
== 0 || i
== 1) {
3897 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3899 ldisc_send(term
->ldisc
, buf
, 20, 0);
3904 compatibility(OTHER
);
3906 int i
= def(term
->esc_args
[0], 1);
3907 pos old_curs
= term
->curs
;
3909 for(;i
>0 && term
->curs
.x
>0; i
--) {
3912 } while (term
->curs
.x
>0 &&
3913 !term
->tabs
[term
->curs
.x
]);
3915 check_selection(term
, old_curs
, term
->curs
);
3918 case ANSI('c', '='): /* Hide or Show Cursor */
3919 compatibility(SCOANSI
);
3920 switch(term
->esc_args
[0]) {
3921 case 0: /* hide cursor */
3922 term
->cursor_on
= FALSE
;
3924 case 1: /* restore cursor */
3925 term
->big_cursor
= FALSE
;
3926 term
->cursor_on
= TRUE
;
3928 case 2: /* block cursor */
3929 term
->big_cursor
= TRUE
;
3930 term
->cursor_on
= TRUE
;
3934 case ANSI('C', '='):
3936 * set cursor start on scanline esc_args[0] and
3937 * end on scanline esc_args[1].If you set
3938 * the bottom scan line to a value less than
3939 * the top scan line, the cursor will disappear.
3941 compatibility(SCOANSI
);
3942 if (term
->esc_nargs
>= 2) {
3943 if (term
->esc_args
[0] > term
->esc_args
[1])
3944 term
->cursor_on
= FALSE
;
3946 term
->cursor_on
= TRUE
;
3949 case ANSI('D', '='):
3950 compatibility(SCOANSI
);
3951 term
->blink_is_real
= FALSE
;
3952 term_schedule_tblink(term
);
3953 if (term
->esc_args
[0]>=1)
3954 term
->curr_attr
|= ATTR_BLINK
;
3956 term
->curr_attr
&= ~ATTR_BLINK
;
3958 case ANSI('E', '='):
3959 compatibility(SCOANSI
);
3960 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3961 term_schedule_tblink(term
);
3963 case ANSI('F', '='): /* set normal foreground */
3964 compatibility(SCOANSI
);
3965 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3967 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3968 (term
->esc_args
[0] & 0x8)) <<
3970 term
->curr_attr
&= ~ATTR_FGMASK
;
3971 term
->curr_attr
|= colour
;
3972 term
->default_attr
&= ~ATTR_FGMASK
;
3973 term
->default_attr
|= colour
;
3974 set_erase_char(term
);
3977 case ANSI('G', '='): /* set normal background */
3978 compatibility(SCOANSI
);
3979 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3981 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3982 (term
->esc_args
[0] & 0x8)) <<
3984 term
->curr_attr
&= ~ATTR_BGMASK
;
3985 term
->curr_attr
|= colour
;
3986 term
->default_attr
&= ~ATTR_BGMASK
;
3987 term
->default_attr
|= colour
;
3988 set_erase_char(term
);
3991 case ANSI('L', '='):
3992 compatibility(SCOANSI
);
3993 term
->use_bce
= (term
->esc_args
[0] <= 0);
3994 set_erase_char(term
);
3996 case ANSI('p', '"'): /* DECSCL: set compat level */
3998 * Allow the host to make this emulator a
3999 * 'perfect' VT102. This first appeared in
4000 * the VT220, but we do need to get back to
4001 * PuTTY mode so I won't check it.
4003 * The arg in 40..42,50 are a PuTTY extension.
4004 * The 2nd arg, 8bit vs 7bit is not checked.
4006 * Setting VT102 mode should also change
4007 * the Fkeys to generate PF* codes as a
4008 * real VT102 has no Fkeys. The VT220 does
4009 * this, F11..F13 become ESC,BS,LF other
4010 * Fkeys send nothing.
4012 * Note ESC c will NOT change this!
4015 switch (term
->esc_args
[0]) {
4017 term
->compatibility_level
&= ~TM_VTXXX
;
4018 term
->compatibility_level
|= TM_VT102
;
4021 term
->compatibility_level
&= ~TM_VTXXX
;
4022 term
->compatibility_level
|= TM_VT220
;
4026 if (term
->esc_args
[0] > 60 &&
4027 term
->esc_args
[0] < 70)
4028 term
->compatibility_level
|= TM_VTXXX
;
4032 term
->compatibility_level
&= TM_VTXXX
;
4035 term
->compatibility_level
= TM_PUTTY
;
4038 term
->compatibility_level
= TM_SCOANSI
;
4042 term
->compatibility_level
= TM_PUTTY
;
4048 /* Change the response to CSI c */
4049 if (term
->esc_args
[0] == 50) {
4052 strcpy(term
->id_string
, "\033[?");
4053 for (i
= 1; i
< term
->esc_nargs
; i
++) {
4055 strcat(term
->id_string
, ";");
4056 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
4057 strcat(term
->id_string
, lbuf
);
4059 strcat(term
->id_string
, "c");
4062 /* Is this a good idea ?
4063 * Well we should do a soft reset at this point ...
4065 if (!has_compat(VT420
) && has_compat(VT100
)) {
4066 if (!term
->cfg
.no_remote_resize
) {
4067 if (term
->reset_132
)
4068 request_resize(132, 24);
4070 request_resize(80, 24);
4078 term
->osc_w
= FALSE
;
4080 case 'P': /* Linux palette sequence */
4081 term
->termstate
= SEEN_OSC_P
;
4082 term
->osc_strlen
= 0;
4084 case 'R': /* Linux palette reset */
4085 palette_reset(term
->frontend
);
4086 term_invalidate(term
);
4087 term
->termstate
= TOPLEVEL
;
4089 case 'W': /* word-set */
4090 term
->termstate
= SEEN_OSC_W
;
4103 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4107 * Grotty hack to support xterm and DECterm title
4108 * sequences concurrently.
4110 if (term
->esc_args
[0] == 2) {
4111 term
->esc_args
[0] = 1;
4114 /* else fall through */
4116 term
->termstate
= OSC_STRING
;
4117 term
->osc_strlen
= 0;
4122 * This OSC stuff is EVIL. It takes just one character to get into
4123 * sysline mode and it's not initially obvious how to get out.
4124 * So I've added CR and LF as string aborts.
4125 * This shouldn't effect compatibility as I believe embedded
4126 * control characters are supposed to be interpreted (maybe?)
4127 * and they don't display anything useful anyway.
4131 if (c
== '\012' || c
== '\015') {
4132 term
->termstate
= TOPLEVEL
;
4133 } else if (c
== 0234 || c
== '\007') {
4135 * These characters terminate the string; ST and BEL
4136 * terminate the sequence and trigger instant
4137 * processing of it, whereas ESC goes back to SEEN_ESC
4138 * mode unless it is followed by \, in which case it is
4139 * synonymous with ST in the first place.
4142 term
->termstate
= TOPLEVEL
;
4143 } else if (c
== '\033')
4144 term
->termstate
= OSC_MAYBE_ST
;
4145 else if (term
->osc_strlen
< OSC_STR_MAX
)
4146 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
4150 int max
= (term
->osc_strlen
== 0 ?
21 : 15);
4152 if ((int)c
>= '0' && (int)c
<= '9')
4154 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
4156 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
4159 term
->termstate
= TOPLEVEL
;
4162 term
->osc_string
[term
->osc_strlen
++] = val
;
4163 if (term
->osc_strlen
>= 7) {
4164 palette_set(term
->frontend
, term
->osc_string
[0],
4165 term
->osc_string
[1] * 16 + term
->osc_string
[2],
4166 term
->osc_string
[3] * 16 + term
->osc_string
[4],
4167 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
4168 term_invalidate(term
);
4169 term
->termstate
= TOPLEVEL
;
4185 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4188 term
->termstate
= OSC_STRING
;
4189 term
->osc_strlen
= 0;
4193 term
->termstate
= TOPLEVEL
;
4194 seen_disp_event(term
);
4197 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
4200 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
4203 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
4206 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
4209 * From the VT100 Manual
4210 * NOTE: The special graphics characters in the VT100
4211 * are different from those in the VT52
4213 * From VT102 manual:
4214 * 137 _ Blank - Same
4215 * 140 ` Reserved - Humm.
4216 * 141 a Solid rectangle - Similar
4217 * 142 b 1/ - Top half of fraction for the
4218 * 143 c 3/ - subscript numbers below.
4221 * 146 f Degrees - Same
4222 * 147 g Plus or minus - Same
4224 * 151 i Ellipsis (dots)
4227 * 154 l Bar at scan 0
4228 * 155 m Bar at scan 1
4229 * 156 n Bar at scan 2
4230 * 157 o Bar at scan 3 - Similar
4231 * 160 p Bar at scan 4 - Similar
4232 * 161 q Bar at scan 5 - Similar
4233 * 162 r Bar at scan 6 - Same
4234 * 163 s Bar at scan 7 - Similar
4249 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
4252 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
4255 move(term
, 0, 0, 0);
4258 if (term
->curs
.y
== 0)
4259 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
4260 else if (term
->curs
.y
> 0)
4262 term
->wrapnext
= FALSE
;
4265 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4269 erase_lots(term
, TRUE
, FALSE
, TRUE
);
4273 /* XXX Print cursor line */
4276 /* XXX Start controller mode */
4279 /* XXX Stop controller mode */
4283 term
->termstate
= VT52_Y1
;
4287 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
4290 term
->app_keypad_keys
= TRUE
;
4293 term
->app_keypad_keys
= FALSE
;
4296 /* XXX This should switch to VT100 mode not current or default
4297 * VT mode. But this will only have effect in a VT220+
4300 term
->vt52_mode
= FALSE
;
4301 term
->blink_is_real
= term
->cfg
.blinktext
;
4302 term_schedule_tblink(term
);
4306 /* XXX Enter auto print mode */
4309 /* XXX Exit auto print mode */
4312 /* XXX Print screen */
4318 /* compatibility(ATARI) */
4319 move(term
, 0, 0, 0);
4320 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4324 /* compatibility(ATARI) */
4325 if (term
->curs
.y
<= term
->marg_b
)
4326 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4329 /* compatibility(ATARI) */
4330 if (term
->curs
.y
<= term
->marg_b
)
4331 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4334 /* compatibility(ATARI) */
4335 term
->termstate
= VT52_FG
;
4338 /* compatibility(ATARI) */
4339 term
->termstate
= VT52_BG
;
4342 /* compatibility(ATARI) */
4343 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4347 /* compatibility(ATARI) */
4348 term
->cursor_on
= TRUE
;
4351 /* compatibility(ATARI) */
4352 term
->cursor_on
= FALSE
;
4354 /* case 'j': Save cursor position - broken on ST */
4355 /* case 'k': Restore cursor position */
4357 /* compatibility(ATARI) */
4358 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4360 term
->wrapnext
= FALSE
;
4363 /* compatibility(ATARI) */
4364 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4367 /* compatibility(ATARI) */
4368 term
->curr_attr
|= ATTR_REVERSE
;
4371 /* compatibility(ATARI) */
4372 term
->curr_attr
&= ~ATTR_REVERSE
;
4374 case 'v': /* wrap Autowrap on - Wyse style */
4375 /* compatibility(ATARI) */
4378 case 'w': /* Autowrap off */
4379 /* compatibility(ATARI) */
4384 /* compatibility(OTHER) */
4385 term
->vt52_bold
= FALSE
;
4386 term
->curr_attr
= ATTR_DEFAULT
;
4387 set_erase_char(term
);
4390 /* compatibility(VI50) */
4391 term
->curr_attr
|= ATTR_UNDER
;
4394 /* compatibility(VI50) */
4395 term
->curr_attr
&= ~ATTR_UNDER
;
4398 /* compatibility(VI50) */
4399 term
->vt52_bold
= TRUE
;
4400 term
->curr_attr
|= ATTR_BOLD
;
4403 /* compatibility(VI50) */
4404 term
->vt52_bold
= FALSE
;
4405 term
->curr_attr
&= ~ATTR_BOLD
;
4411 term
->termstate
= VT52_Y2
;
4412 move(term
, term
->curs
.x
, c
- ' ', 0);
4415 term
->termstate
= TOPLEVEL
;
4416 move(term
, c
- ' ', term
->curs
.y
, 0);
4421 term
->termstate
= TOPLEVEL
;
4422 term
->curr_attr
&= ~ATTR_FGMASK
;
4423 term
->curr_attr
&= ~ATTR_BOLD
;
4424 term
->curr_attr
|= (c
& 0xF) << ATTR_FGSHIFT
;
4425 set_erase_char(term
);
4428 term
->termstate
= TOPLEVEL
;
4429 term
->curr_attr
&= ~ATTR_BGMASK
;
4430 term
->curr_attr
&= ~ATTR_BLINK
;
4431 term
->curr_attr
|= (c
& 0xF) << ATTR_BGSHIFT
;
4432 set_erase_char(term
);
4435 default: break; /* placate gcc warning about enum use */
4437 if (term
->selstate
!= NO_SELECTION
) {
4438 pos cursplus
= term
->curs
;
4440 check_selection(term
, term
->curs
, cursplus
);
4444 term_print_flush(term
);
4445 if (term
->cfg
.logflush
)
4446 logflush(term
->logctx
);
4450 * To prevent having to run the reasonably tricky bidi algorithm
4451 * too many times, we maintain a cache of the last lineful of data
4452 * fed to the algorithm on each line of the display.
4454 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4455 termchar
*lbefore
, int width
)
4459 if (!term
->pre_bidi_cache
)
4460 return FALSE
; /* cache doesn't even exist yet! */
4462 if (line
>= term
->bidi_cache_size
)
4463 return FALSE
; /* cache doesn't have this many lines */
4465 if (!term
->pre_bidi_cache
[line
].chars
)
4466 return FALSE
; /* cache doesn't contain _this_ line */
4468 if (term
->pre_bidi_cache
[line
].width
!= width
)
4469 return FALSE
; /* line is wrong width */
4471 for (i
= 0; i
< width
; i
++)
4472 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4473 return FALSE
; /* line doesn't match cache */
4475 return TRUE
; /* it didn't match. */
4478 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4479 termchar
*lafter
, bidi_char
*wcTo
,
4480 int width
, int size
)
4484 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4485 int j
= term
->bidi_cache_size
;
4486 term
->bidi_cache_size
= line
+1;
4487 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4488 term
->bidi_cache_size
,
4489 struct bidi_cache_entry
);
4490 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4491 term
->bidi_cache_size
,
4492 struct bidi_cache_entry
);
4493 while (j
< term
->bidi_cache_size
) {
4494 term
->pre_bidi_cache
[j
].chars
=
4495 term
->post_bidi_cache
[j
].chars
= NULL
;
4496 term
->pre_bidi_cache
[j
].width
=
4497 term
->post_bidi_cache
[j
].width
= -1;
4498 term
->pre_bidi_cache
[j
].forward
=
4499 term
->post_bidi_cache
[j
].forward
= NULL
;
4500 term
->pre_bidi_cache
[j
].backward
=
4501 term
->post_bidi_cache
[j
].backward
= NULL
;
4506 sfree(term
->pre_bidi_cache
[line
].chars
);
4507 sfree(term
->post_bidi_cache
[line
].chars
);
4508 sfree(term
->post_bidi_cache
[line
].forward
);
4509 sfree(term
->post_bidi_cache
[line
].backward
);
4511 term
->pre_bidi_cache
[line
].width
= width
;
4512 term
->pre_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4513 term
->post_bidi_cache
[line
].width
= width
;
4514 term
->post_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4515 term
->post_bidi_cache
[line
].forward
= snewn(width
, int);
4516 term
->post_bidi_cache
[line
].backward
= snewn(width
, int);
4518 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, size
* TSIZE
);
4519 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, size
* TSIZE
);
4520 memset(term
->post_bidi_cache
[line
].forward
, 0, width
* sizeof(int));
4521 memset(term
->post_bidi_cache
[line
].backward
, 0, width
* sizeof(int));
4523 for (i
= 0; i
< width
; i
++) {
4524 int p
= wcTo
[i
].index
;
4526 assert(0 <= p
&& p
< width
);
4528 term
->post_bidi_cache
[line
].backward
[i
] = p
;
4529 term
->post_bidi_cache
[line
].forward
[p
] = i
;
4534 * Prepare the bidi information for a screen line. Returns the
4535 * transformed list of termchars, or NULL if no transformation at
4536 * all took place (because bidi is disabled). If return was
4537 * non-NULL, auxiliary information such as the forward and reverse
4538 * mappings of permutation position are available in
4539 * term->post_bidi_cache[scr_y].*.
4541 static termchar
*term_bidi_line(Terminal
*term
, struct termline
*ldata
,
4547 /* Do Arabic shaping and bidi. */
4548 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4550 if (!term_bidi_cache_hit(term
, scr_y
, ldata
->chars
, term
->cols
)) {
4552 if (term
->wcFromTo_size
< term
->cols
) {
4553 term
->wcFromTo_size
= term
->cols
;
4554 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4556 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4560 for(it
=0; it
<term
->cols
; it
++)
4562 unsigned long uc
= (ldata
->chars
[it
].chr
);
4564 switch (uc
& CSET_MASK
) {
4566 if (!term
->cfg
.rawcnp
) {
4567 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4571 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4574 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4577 switch (uc
& CSET_MASK
) {
4579 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4582 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4586 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4588 term
->wcFrom
[it
].index
= it
;
4592 do_bidi(term
->wcFrom
, term
->cols
);
4594 /* this is saved iff done from inside the shaping */
4595 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4596 for(it
=0; it
<term
->cols
; it
++)
4597 term
->wcTo
[it
] = term
->wcFrom
[it
];
4599 if(!term
->cfg
.arabicshaping
)
4600 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4602 if (term
->ltemp_size
< ldata
->size
) {
4603 term
->ltemp_size
= ldata
->size
;
4604 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4608 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4610 for(it
=0; it
<term
->cols
; it
++)
4612 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4613 if (term
->ltemp
[it
].cc_next
)
4614 term
->ltemp
[it
].cc_next
-=
4615 it
- term
->wcTo
[it
].index
;
4617 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4618 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4620 term_bidi_cache_store(term
, scr_y
, ldata
->chars
,
4621 term
->ltemp
, term
->wcTo
,
4622 term
->cols
, ldata
->size
);
4624 lchars
= term
->ltemp
;
4626 lchars
= term
->post_bidi_cache
[scr_y
].chars
;
4636 * Given a context, update the window. Out of paranoia, we don't
4637 * allow WM_PAINT responses to do scrolling optimisations.
4639 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4641 int i
, j
, our_curs_y
, our_curs_x
;
4646 #ifdef OPTIMISE_SCROLL
4647 struct scrollregion
*sr
;
4648 #endif /* OPTIMISE_SCROLL */
4652 ch
= snewn(chlen
, wchar_t);
4654 newline
= snewn(term
->cols
, termchar
);
4656 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4659 * screen array, disptop, scrtop,
4661 * cfg.blinkpc, blink_is_real, tblinker,
4662 * curs.y, curs.x, cblinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4665 /* Has the cursor position or type changed ? */
4666 if (term
->cursor_on
) {
4667 if (term
->has_focus
) {
4668 if (term
->cblinker
|| !term
->cfg
.blink_cur
)
4669 cursor
= TATTR_ACTCURS
;
4673 cursor
= TATTR_PASCURS
;
4675 cursor
|= TATTR_RIGHTCURS
;
4678 our_curs_y
= term
->curs
.y
- term
->disptop
;
4681 * Adjust the cursor position:
4683 * - in the case where it's resting on the right-hand half
4684 * of a CJK wide character. xterm's behaviour here,
4685 * which seems adequate to me, is to display the cursor
4686 * covering the _whole_ character, exactly as if it were
4687 * one space to the left.
4689 termline
*ldata
= lineptr(term
->curs
.y
);
4692 our_curs_x
= term
->curs
.x
;
4694 if ( (lchars
= term_bidi_line(term
, ldata
, our_curs_y
)) != NULL
) {
4695 our_curs_x
= term
->post_bidi_cache
[our_curs_y
].forward
[our_curs_x
];
4697 lchars
= ldata
->chars
;
4699 if (our_curs_x
> 0 &&
4700 lchars
[our_curs_x
].chr
== UCSWIDE
)
4707 * If the cursor is not where it was last time we painted, and
4708 * its previous position is visible on screen, invalidate its
4709 * previous position.
4711 if (term
->dispcursy
>= 0 &&
4712 (term
->curstype
!= cursor
||
4713 term
->dispcursy
!= our_curs_y
||
4714 term
->dispcursx
!= our_curs_x
)) {
4715 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4718 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4719 dispcurs
[-1].attr
|= ATTR_INVALID
;
4720 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4721 dispcurs
[1].attr
|= ATTR_INVALID
;
4722 dispcurs
->attr
|= ATTR_INVALID
;
4726 term
->dispcursx
= term
->dispcursy
= -1;
4728 #ifdef OPTIMISE_SCROLL
4730 sr
= term
->scrollhead
;
4732 struct scrollregion
*next
= sr
->next
;
4733 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4737 term
->scrollhead
= term
->scrolltail
= NULL
;
4738 #endif /* OPTIMISE_SCROLL */
4740 /* The normal screen data */
4741 for (i
= 0; i
< term
->rows
; i
++) {
4744 int dirty_line
, dirty_run
, selected
;
4745 unsigned long attr
= 0, cset
= 0;
4746 int updated_line
= 0;
4749 int last_run_dirty
= 0;
4750 int laststart
, dirtyrect
;
4753 scrpos
.y
= i
+ term
->disptop
;
4754 ldata
= lineptr(scrpos
.y
);
4756 /* Do Arabic shaping and bidi. */
4757 lchars
= term_bidi_line(term
, ldata
, i
);
4759 backward
= term
->post_bidi_cache
[i
].backward
;
4761 lchars
= ldata
->chars
;
4766 * First loop: work along the line deciding what we want
4767 * each character cell to look like.
4769 for (j
= 0; j
< term
->cols
; j
++) {
4770 unsigned long tattr
, tchar
;
4771 termchar
*d
= lchars
+ j
;
4772 scrpos
.x
= backward ? backward
[j
] : j
;
4777 if (!term
->cfg
.ansi_colour
)
4778 tattr
= (tattr
& ~(ATTR_FGMASK
| ATTR_BGMASK
)) |
4779 ATTR_DEFFG
| ATTR_DEFBG
;
4781 if (!term
->cfg
.xterm_256_colour
) {
4783 colour
= (tattr
& ATTR_FGMASK
) >> ATTR_FGSHIFT
;
4784 if (colour
>= 16 && colour
< 256)
4785 tattr
= (tattr
&~ ATTR_FGMASK
) | ATTR_DEFFG
;
4786 colour
= (tattr
& ATTR_BGMASK
) >> ATTR_BGSHIFT
;
4787 if (colour
>= 16 && colour
< 256)
4788 tattr
= (tattr
&~ ATTR_BGMASK
) | ATTR_DEFBG
;
4791 switch (tchar
& CSET_MASK
) {
4793 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4796 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4799 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4802 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4805 /* Video reversing things */
4806 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4807 if (term
->seltype
== LEXICOGRAPHIC
)
4808 selected
= (posle(term
->selstart
, scrpos
) &&
4809 poslt(scrpos
, term
->selend
));
4811 selected
= (posPle(term
->selstart
, scrpos
) &&
4812 posPlt(scrpos
, term
->selend
));
4816 ^ (selected ? ATTR_REVERSE
: 0));
4818 /* 'Real' blinking ? */
4819 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4820 if (term
->has_focus
&& term
->tblinker
) {
4821 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4823 tattr
&= ~ATTR_BLINK
;
4827 * Check the font we'll _probably_ be using to see if
4828 * the character is wide when we don't want it to be.
4830 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4831 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4832 (ATTR_NARROW
| DATTR_MASK
))) {
4833 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4834 tattr
|= ATTR_NARROW
;
4835 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4836 tattr
|= ATTR_NARROW
;
4838 if (i
== our_curs_y
&& j
== our_curs_x
) {
4840 term
->curstype
= cursor
;
4841 term
->dispcursx
= j
;
4842 term
->dispcursy
= i
;
4846 newline
[j
].attr
= tattr
;
4847 newline
[j
].chr
= tchar
;
4848 /* Combining characters are still read from lchars */
4849 newline
[j
].cc_next
= 0;
4853 * Now loop over the line again, noting where things have
4856 * During this loop, we keep track of where we last saw
4857 * DATTR_STARTRUN. Any mismatch automatically invalidates
4858 * _all_ of the containing run that was last printed: that
4859 * is, any rectangle that was drawn in one go in the
4860 * previous update should be either left completely alone
4861 * or overwritten in its entirety. This, along with the
4862 * expectation that front ends clip all text runs to their
4863 * bounding rectangle, should solve any possible problems
4864 * with fonts that overflow their character cells.
4868 for (j
= 0; j
< term
->cols
; j
++) {
4869 if (term
->disptext
[i
]->chars
[j
].attr
& DATTR_STARTRUN
) {
4874 if (term
->disptext
[i
]->chars
[j
].chr
!= newline
[j
].chr
||
4875 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
)
4876 != newline
[j
].attr
) {
4880 for (k
= laststart
; k
< j
; k
++)
4881 term
->disptext
[i
]->chars
[k
].attr
|= ATTR_INVALID
;
4888 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
4892 * Finally, loop once more and actually do the drawing.
4894 dirty_run
= dirty_line
= (ldata
->lattr
!=
4895 term
->disptext
[i
]->lattr
);
4896 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4898 for (j
= 0; j
< term
->cols
; j
++) {
4899 unsigned long tattr
, tchar
;
4900 int break_run
, do_copy
;
4901 termchar
*d
= lchars
+ j
;
4903 tattr
= newline
[j
].attr
;
4904 tchar
= newline
[j
].chr
;
4906 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4909 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4911 /* Special hack for VT100 Linedraw glyphs */
4912 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4916 * Separate out sequences of characters that have the
4917 * same CSET, if that CSET is a magic one.
4919 if (CSET_OF(tchar
) != cset
)
4923 * Break on both sides of any combined-character cell.
4925 if (d
->cc_next
!= 0 ||
4926 (j
> 0 && d
[-1].cc_next
!= 0))
4929 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4930 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4931 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
) == tattr
)
4933 else if (!dirty_run
&& ccount
== 1)
4938 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4939 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
4941 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
4942 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
4950 cset
= CSET_OF(tchar
);
4951 if (term
->ucsdata
->dbcs_screenfont
)
4952 last_run_dirty
= dirty_run
;
4953 dirty_run
= dirty_line
;
4957 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4963 if (ccount
>= chlen
) {
4964 chlen
= ccount
+ 256;
4965 ch
= sresize(ch
, chlen
, wchar_t);
4967 ch
[ccount
++] = (wchar_t) tchar
;
4972 while (dd
->cc_next
) {
4973 unsigned long schar
;
4978 switch (schar
& CSET_MASK
) {
4980 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4983 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4986 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4990 if (ccount
>= chlen
) {
4991 chlen
= ccount
+ 256;
4992 ch
= sresize(ch
, chlen
, wchar_t);
4994 ch
[ccount
++] = (wchar_t) schar
;
4997 attr
|= TATTR_COMBINING
;
5001 copy_termchar(term
->disptext
[i
], j
, d
);
5002 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
5003 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
5005 term
->disptext
[i
]->chars
[j
].attr
|= DATTR_STARTRUN
;
5008 /* If it's a wide char step along to the next one. */
5009 if (tattr
& ATTR_WIDE
) {
5010 if (++j
< term
->cols
) {
5013 * By construction above, the cursor should not
5014 * be on the right-hand half of this character.
5017 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
5018 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
5020 copy_termchar(term
->disptext
[i
], j
, d
);
5024 if (dirty_run
&& ccount
> 0) {
5025 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
5027 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
5028 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
5042 * Invalidate the whole screen so it will be repainted in full.
5044 void term_invalidate(Terminal
*term
)
5048 for (i
= 0; i
< term
->rows
; i
++)
5049 for (j
= 0; j
< term
->cols
; j
++)
5050 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5052 term_schedule_update(term
);
5056 * Paint the window in response to a WM_PAINT message.
5058 void term_paint(Terminal
*term
, Context ctx
,
5059 int left
, int top
, int right
, int bottom
, int immediately
)
5062 if (left
< 0) left
= 0;
5063 if (top
< 0) top
= 0;
5064 if (right
>= term
->cols
) right
= term
->cols
-1;
5065 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
5067 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
5068 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
5069 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
5070 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5072 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
5073 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5077 do_paint (term
, ctx
, FALSE
);
5079 term_schedule_update(term
);
5084 * Attempt to scroll the scrollback. The second parameter gives the
5085 * position we want to scroll to; the first is +1 to denote that
5086 * this position is relative to the beginning of the scrollback, -1
5087 * to denote it is relative to the end, and 0 to denote that it is
5088 * relative to the current position.
5090 void term_scroll(Terminal
*term
, int rel
, int where
)
5092 int sbtop
= -sblines(term
);
5093 #ifdef OPTIMISE_SCROLL
5094 int olddisptop
= term
->disptop
;
5096 #endif /* OPTIMISE_SCROLL */
5098 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
5099 if (term
->disptop
< sbtop
)
5100 term
->disptop
= sbtop
;
5101 if (term
->disptop
> 0)
5104 #ifdef OPTIMISE_SCROLL
5105 shift
= (term
->disptop
- olddisptop
);
5106 if (shift
< term
->rows
&& shift
> -term
->rows
)
5107 scroll_display(term
, 0, term
->rows
- 1, shift
);
5108 #endif /* OPTIMISE_SCROLL */
5113 * Helper routine for clipme(): growing buffer.
5116 int buflen
; /* amount of allocated space in textbuf/attrbuf */
5117 int bufpos
; /* amount of actual data */
5118 wchar_t *textbuf
; /* buffer for copied text */
5119 wchar_t *textptr
; /* = textbuf + bufpos (current insertion point) */
5120 int *attrbuf
; /* buffer for copied attributes */
5121 int *attrptr
; /* = attrbuf + bufpos */
5124 static void clip_addchar(clip_workbuf
*b
, wchar_t chr
, int attr
)
5126 if (b
->bufpos
>= b
->buflen
) {
5128 b
->textbuf
= sresize(b
->textbuf
, b
->buflen
, wchar_t);
5129 b
->textptr
= b
->textbuf
+ b
->bufpos
;
5130 b
->attrbuf
= sresize(b
->attrbuf
, b
->buflen
, int);
5131 b
->attrptr
= b
->attrbuf
+ b
->bufpos
;
5133 *b
->textptr
++ = chr
;
5134 *b
->attrptr
++ = attr
;
5138 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
5146 buf
.textptr
= buf
.textbuf
= snewn(buf
.buflen
, wchar_t);
5147 buf
.attrptr
= buf
.attrbuf
= snewn(buf
.buflen
, int);
5149 old_top_x
= top
.x
; /* needed for rect==1 */
5151 while (poslt(top
, bottom
)) {
5153 termline
*ldata
= lineptr(top
.y
);
5157 * nlpos will point at the maximum position on this line we
5158 * should copy up to. So we start it at the end of the
5162 nlpos
.x
= term
->cols
;
5165 * ... move it backwards if there's unused space at the end
5166 * of the line (and also set `nl' if this is the case,
5167 * because in normal selection mode this means we need a
5168 * newline at the end)...
5170 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5172 IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
5173 !ldata
->chars
[nlpos
.x
- 1].cc_next
&&
5176 if (poslt(nlpos
, bottom
))
5178 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
5179 /* Ignore the last char on the line in a WRAPPED2 line. */
5184 * ... and then clip it to the terminal x coordinate if
5185 * we're doing rectangular selection. (In this case we
5186 * still did the above, so that copying e.g. the right-hand
5187 * column from a table doesn't fill with spaces on the
5191 if (nlpos
.x
> bottom
.x
)
5193 nl
= (top
.y
< bottom
.y
);
5196 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
5199 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
5201 wchar_t cbuf
[16], *p
;
5205 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
5211 int uc
= ldata
->chars
[x
].chr
;
5212 attr
= ldata
->chars
[x
].attr
;
5214 switch (uc
& CSET_MASK
) {
5216 if (!term
->cfg
.rawcnp
) {
5217 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5221 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5224 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5227 switch (uc
& CSET_MASK
) {
5229 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5232 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5236 set
= (uc
& CSET_MASK
);
5237 c
= (uc
& ~CSET_MASK
);
5241 if (DIRECT_FONT(uc
)) {
5242 if (c
>= ' ' && c
!= 0x7F) {
5246 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
5248 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
5249 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
5253 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
5257 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
5264 for (p
= cbuf
; *p
; p
++)
5265 clip_addchar(&buf
, *p
, attr
);
5267 if (ldata
->chars
[x
].cc_next
)
5268 x
+= ldata
->chars
[x
].cc_next
;
5276 for (i
= 0; i
< sel_nl_sz
; i
++)
5277 clip_addchar(&buf
, sel_nl
[i
], 0);
5280 top
.x
= rect ? old_top_x
: 0;
5284 #if SELECTION_NUL_TERMINATED
5285 clip_addchar(&buf
, 0, 0);
5287 /* Finally, transfer all that to the clipboard. */
5288 write_clip(term
->frontend
, buf
.textbuf
, buf
.attrbuf
, buf
.bufpos
, desel
);
5293 void term_copyall(Terminal
*term
)
5297 tree234
*screen
= term
->screen
;
5298 top
.y
= -sblines(term
);
5300 bottom
.y
= find_last_nonempty_line(term
, screen
);
5301 bottom
.x
= term
->cols
;
5302 clipme(term
, top
, bottom
, 0, TRUE
);
5306 * The wordness array is mainly for deciding the disposition of the
5307 * US-ASCII characters.
5309 static int wordtype(Terminal
*term
, int uc
)
5312 int start
, end
, ctype
;
5314 static const struct ucsword ucs_words
[] = {
5320 0x037e, 0x037e, 1}, /* Greek question mark */
5322 0x0387, 0x0387, 1}, /* Greek ano teleia */
5324 0x055a, 0x055f, 1}, /* Armenian punctuation */
5326 0x0589, 0x0589, 1}, /* Armenian full stop */
5328 0x0700, 0x070d, 1}, /* Syriac punctuation */
5330 0x104a, 0x104f, 1}, /* Myanmar punctuation */
5332 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
5334 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
5336 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
5338 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
5340 0x1800, 0x180a, 1}, /* Mongolian punctuation */
5342 0x2000, 0x200a, 0}, /* Various spaces */
5344 0x2070, 0x207f, 2}, /* superscript */
5346 0x2080, 0x208f, 2}, /* subscript */
5348 0x200b, 0x27ff, 1}, /* punctuation and symbols */
5350 0x3000, 0x3000, 0}, /* ideographic space */
5352 0x3001, 0x3020, 1}, /* ideographic punctuation */
5354 0x303f, 0x309f, 3}, /* Hiragana */
5356 0x30a0, 0x30ff, 3}, /* Katakana */
5358 0x3300, 0x9fff, 3}, /* CJK Ideographs */
5360 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5362 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5364 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5366 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5368 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5370 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5372 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5374 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5378 const struct ucsword
*wptr
;
5380 switch (uc
& CSET_MASK
) {
5382 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5385 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5388 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5391 switch (uc
& CSET_MASK
) {
5393 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5396 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5400 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5401 * fail as there's such a thing as a double width space. :-(
5403 if (term
->ucsdata
->dbcs_screenfont
&&
5404 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5408 return term
->wordness
[uc
];
5410 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5411 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5419 * Spread the selection outwards according to the selection mode.
5421 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5425 int topy
= -sblines(term
);
5427 ldata
= lineptr(p
.y
);
5429 switch (term
->selmode
) {
5432 * In this mode, every character is a separate unit, except
5433 * for runs of spaces at the end of a non-wrapping line.
5435 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5436 termchar
*q
= ldata
->chars
+ term
->cols
;
5437 while (q
> ldata
->chars
&&
5438 IS_SPACE_CHR(q
[-1].chr
) && !q
[-1].cc_next
)
5440 if (q
== ldata
->chars
+ term
->cols
)
5442 if (p
.x
>= q
- ldata
->chars
)
5443 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5448 * In this mode, the units are maximal runs of characters
5449 * whose `wordness' has the same value.
5451 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5454 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5455 term
->cols
-1 : term
->cols
);
5456 if (p
.x
< maxcols
-1) {
5457 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5462 if (ldata
->lattr
& LATTR_WRAPPED
) {
5464 ldata2
= lineptr(p
.y
+1);
5465 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5482 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5491 ldata2
= lineptr(p
.y
-1);
5492 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5493 term
->cols
-1 : term
->cols
);
5494 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5495 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5513 * In this mode, every line is a unit.
5515 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5523 static void sel_spread(Terminal
*term
)
5525 if (term
->seltype
== LEXICOGRAPHIC
) {
5526 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5527 decpos(term
->selend
);
5528 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5529 incpos(term
->selend
);
5533 void term_do_paste(Terminal
*term
)
5538 get_clip(term
->frontend
, &data
, &len
);
5539 if (data
&& len
> 0) {
5542 term_seen_key_event(term
); /* pasted data counts */
5544 if (term
->paste_buffer
)
5545 sfree(term
->paste_buffer
);
5546 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5547 term
->paste_buffer
= snewn(len
, wchar_t);
5550 while (p
< data
+ len
) {
5551 while (p
< data
+ len
&&
5552 !(p
<= data
+ len
- sel_nl_sz
&&
5553 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5558 for (i
= 0; i
< p
- q
; i
++) {
5559 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5563 if (p
<= data
+ len
- sel_nl_sz
&&
5564 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5565 term
->paste_buffer
[term
->paste_len
++] = '\015';
5571 /* Assume a small paste will be OK in one go. */
5572 if (term
->paste_len
< 256) {
5574 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5575 if (term
->paste_buffer
)
5576 sfree(term
->paste_buffer
);
5577 term
->paste_buffer
= 0;
5578 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5581 get_clip(term
->frontend
, NULL
, NULL
);
5584 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5585 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5589 int raw_mouse
= (term
->xterm_mouse
&&
5590 !term
->cfg
.no_mouse_rep
&&
5591 !(term
->cfg
.mouse_override
&& shift
));
5592 int default_seltype
;
5596 if (a
== MA_DRAG
&& !raw_mouse
)
5597 term_scroll(term
, 0, -1);
5599 if (y
>= term
->rows
) {
5601 if (a
== MA_DRAG
&& !raw_mouse
)
5602 term_scroll(term
, 0, +1);
5611 if (x
>= term
->cols
)
5614 selpoint
.y
= y
+ term
->disptop
;
5615 ldata
= lineptr(selpoint
.y
);
5617 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5621 * Transform x through the bidi algorithm to find the _logical_
5622 * click point from the physical one.
5624 if (term_bidi_line(term
, ldata
, y
) != NULL
) {
5625 x
= term
->post_bidi_cache
[y
].backward
[x
];
5632 * If we're in the middle of a selection operation, we ignore raw
5633 * mouse mode until it's done (we must have been not in raw mouse
5634 * mode when it started).
5635 * This makes use of Shift for selection reliable, and avoids the
5636 * host seeing mouse releases for which they never saw corresponding
5640 (term
->selstate
!= ABOUT_TO
) && (term
->selstate
!= DRAGGING
)) {
5641 int encstate
= 0, r
, c
;
5648 encstate
= 0x20; /* left button down */
5659 case MBT_WHEEL_DOWN
:
5662 default: break; /* placate gcc warning about enum use */
5666 if (term
->xterm_mouse
== 1)
5672 term
->mouse_is_down
= 0;
5675 if (term
->mouse_is_down
== braw
)
5677 term
->mouse_is_down
= braw
;
5679 default: break; /* placate gcc warning about enum use */
5688 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5689 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5695 * Set the selection type (rectangular or normal) at the start
5696 * of a selection attempt, from the state of Alt.
5698 if (!alt
^ !term
->cfg
.rect_select
)
5699 default_seltype
= RECTANGULAR
;
5701 default_seltype
= LEXICOGRAPHIC
;
5703 if (term
->selstate
== NO_SELECTION
) {
5704 term
->seltype
= default_seltype
;
5707 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5709 term
->selstate
= ABOUT_TO
;
5710 term
->seltype
= default_seltype
;
5711 term
->selanchor
= selpoint
;
5712 term
->selmode
= SM_CHAR
;
5713 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5715 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5716 term
->selstate
= DRAGGING
;
5717 term
->selstart
= term
->selanchor
= selpoint
;
5718 term
->selend
= term
->selstart
;
5719 incpos(term
->selend
);
5721 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5722 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5723 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5725 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5726 term
->selstate
== SELECTED
) {
5727 if (term
->seltype
== LEXICOGRAPHIC
) {
5729 * For normal selection, we extend by moving
5730 * whichever end of the current selection is closer
5733 if (posdiff(selpoint
, term
->selstart
) <
5734 posdiff(term
->selend
, term
->selstart
) / 2) {
5735 term
->selanchor
= term
->selend
;
5736 decpos(term
->selanchor
);
5738 term
->selanchor
= term
->selstart
;
5742 * For rectangular selection, we have a choice of
5743 * _four_ places to put selanchor and selpoint: the
5744 * four corners of the selection.
5746 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5747 term
->selanchor
.x
= term
->selend
.x
-1;
5749 term
->selanchor
.x
= term
->selstart
.x
;
5751 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5752 term
->selanchor
.y
= term
->selend
.y
;
5754 term
->selanchor
.y
= term
->selstart
.y
;
5756 term
->selstate
= DRAGGING
;
5758 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5759 term
->selanchor
= selpoint
;
5760 term
->selstate
= DRAGGING
;
5761 if (term
->seltype
== LEXICOGRAPHIC
) {
5763 * For normal selection, we set (selstart,selend) to
5764 * (selpoint,selanchor) in some order.
5766 if (poslt(selpoint
, term
->selanchor
)) {
5767 term
->selstart
= selpoint
;
5768 term
->selend
= term
->selanchor
;
5769 incpos(term
->selend
);
5771 term
->selstart
= term
->selanchor
;
5772 term
->selend
= selpoint
;
5773 incpos(term
->selend
);
5777 * For rectangular selection, we may need to
5778 * interchange x and y coordinates (if the user has
5779 * dragged in the -x and +y directions, or vice versa).
5781 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5782 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5783 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5784 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5787 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5789 if (term
->selstate
== DRAGGING
) {
5791 * We've completed a selection. We now transfer the
5792 * data to the clipboard.
5794 clipme(term
, term
->selstart
, term
->selend
,
5795 (term
->seltype
== RECTANGULAR
), FALSE
);
5796 term
->selstate
= SELECTED
;
5798 term
->selstate
= NO_SELECTION
;
5799 } else if (bcooked
== MBT_PASTE
5801 #if MULTICLICK_ONLY_EVENT
5802 || a
== MA_2CLK
|| a
== MA_3CLK
5805 request_paste(term
->frontend
);
5811 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5812 unsigned int modifiers
, unsigned int flags
)
5816 int prependesc
= FALSE
;
5820 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5821 for (i
= 0; i
< tlen
; i
++)
5822 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5823 fprintf(stderr
, "\n");
5827 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5830 /* Currently, Meta always just prefixes everything with ESC. */
5831 if (modifiers
& PKM_META
)
5833 modifiers
&= ~PKM_META
;
5836 * Alt is only used for Alt+keypad, which isn't supported yet, so
5839 modifiers
&= ~PKM_ALT
;
5841 /* Standard local function keys */
5842 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5844 if (keysym
== PK_PAGEUP
)
5845 /* scroll up one page */;
5846 if (keysym
== PK_PAGEDOWN
)
5847 /* scroll down on page */;
5848 if (keysym
== PK_INSERT
)
5849 term_do_paste(term
);
5852 if (keysym
== PK_PAGEUP
)
5853 /* scroll up one line */;
5854 if (keysym
== PK_PAGEDOWN
)
5855 /* scroll down one line */;
5856 /* Control-Numlock for app-keypad mode switch */
5857 if (keysym
== PK_PF1
)
5858 term
->app_keypad_keys
^= 1;
5862 if (modifiers
& PKM_ALT
) {
5863 /* Alt+F4 (close) */
5864 /* Alt+Return (full screen) */
5865 /* Alt+Space (system menu) */
5868 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5869 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5870 /* ASCII chars + Control */
5871 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5872 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5876 * Control-2 should return ^@ (0x00), Control-6 should return
5877 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5878 * the DOS keyboard handling did it, and we have nothing better
5879 * to do with the key combo in question, we'll also map
5880 * Control-Backquote to ^\ (0x1C).
5883 case ' ': text
[0] = 0x00; break;
5884 case '-': text
[0] = 0x1f; break;
5885 case '/': text
[0] = 0x1f; break;
5886 case '2': text
[0] = 0x00; break;
5887 case '3': text
[0] = 0x1b; break;
5888 case '4': text
[0] = 0x1c; break;
5889 case '5': text
[0] = 0x1d; break;
5890 case '6': text
[0] = 0x1e; break;
5891 case '7': text
[0] = 0x1f; break;
5892 case '8': text
[0] = 0x7f; break;
5893 case '`': text
[0] = 0x1c; break;
5898 /* Nethack keypad */
5899 if (term
->cfg
.nethack_keypad
) {
5902 case PK_KP1
: c
= 'b'; break;
5903 case PK_KP2
: c
= 'j'; break;
5904 case PK_KP3
: c
= 'n'; break;
5905 case PK_KP4
: c
= 'h'; break;
5906 case PK_KP5
: c
= '.'; break;
5907 case PK_KP6
: c
= 'l'; break;
5908 case PK_KP7
: c
= 'y'; break;
5909 case PK_KP8
: c
= 'k'; break;
5910 case PK_KP9
: c
= 'u'; break;
5911 default: break; /* else gcc warns `enum value not used' */
5915 if (modifiers
& PKM_CONTROL
)
5917 else if (modifiers
& PKM_SHIFT
)
5925 /* Numeric Keypad */
5926 if (PK_ISKEYPAD(keysym
)) {
5930 * In VT400 mode, PFn always emits an escape sequence. In
5931 * Linux and tilde modes, this only happens in app keypad mode.
5933 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5934 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5935 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5936 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5938 case PK_PF1
: xkey
= 'P'; break;
5939 case PK_PF2
: xkey
= 'Q'; break;
5940 case PK_PF3
: xkey
= 'R'; break;
5941 case PK_PF4
: xkey
= 'S'; break;
5942 default: break; /* else gcc warns `enum value not used' */
5945 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5947 case PK_KP0
: xkey
= 'p'; break;
5948 case PK_KP1
: xkey
= 'q'; break;
5949 case PK_KP2
: xkey
= 'r'; break;
5950 case PK_KP3
: xkey
= 's'; break;
5951 case PK_KP4
: xkey
= 't'; break;
5952 case PK_KP5
: xkey
= 'u'; break;
5953 case PK_KP6
: xkey
= 'v'; break;
5954 case PK_KP7
: xkey
= 'w'; break;
5955 case PK_KP8
: xkey
= 'x'; break;
5956 case PK_KP9
: xkey
= 'y'; break;
5957 case PK_KPDECIMAL
: xkey
= 'n'; break;
5958 case PK_KPENTER
: xkey
= 'M'; break;
5959 default: break; /* else gcc warns `enum value not used' */
5961 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5963 * xterm can't see the layout of the keypad, so it has
5964 * to rely on the X keysyms returned by the keys.
5965 * Hence, we look at the strings here, not the PuTTY
5966 * keysyms (which describe the layout).
5970 if (modifiers
& PKM_SHIFT
)
5975 case '/': xkey
= 'o'; break;
5976 case '*': xkey
= 'j'; break;
5977 case '-': xkey
= 'm'; break;
5981 * In all other modes, we try to retain the layout of
5982 * the DEC keypad in application mode.
5986 /* This key covers the '-' and ',' keys on a VT220 */
5987 if (modifiers
& PKM_SHIFT
)
5988 xkey
= 'm'; /* VT220 '-' */
5990 xkey
= 'l'; /* VT220 ',' */
5992 case PK_KPMINUS
: xkey
= 'm'; break;
5993 case PK_KPCOMMA
: xkey
= 'l'; break;
5994 default: break; /* else gcc warns `enum value not used' */
5999 if (term
->vt52_mode
) {
6000 if (xkey
>= 'P' && xkey
<= 'S')
6001 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6003 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
6005 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
6008 /* Not in application mode -- treat the number pad as arrow keys? */
6009 if ((flags
& PKF_NUMLOCK
) == 0) {
6011 case PK_KP0
: keysym
= PK_INSERT
; break;
6012 case PK_KP1
: keysym
= PK_END
; break;
6013 case PK_KP2
: keysym
= PK_DOWN
; break;
6014 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
6015 case PK_KP4
: keysym
= PK_LEFT
; break;
6016 case PK_KP5
: keysym
= PK_REST
; break;
6017 case PK_KP6
: keysym
= PK_RIGHT
; break;
6018 case PK_KP7
: keysym
= PK_HOME
; break;
6019 case PK_KP8
: keysym
= PK_UP
; break;
6020 case PK_KP9
: keysym
= PK_PAGEUP
; break;
6021 default: break; /* else gcc warns `enum value not used' */
6026 /* Miscellaneous keys */
6033 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
6034 else if (modifiers
== PKM_SHIFT
)
6035 /* We do the opposite of what is configured */
6036 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
6042 else if (modifiers
== PKM_SHIFT
)
6043 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
6046 /* XXX window.c has ctrl+shift+space sending 0xa0 */
6048 if (modifiers
== PKM_CONTROL
)
6053 case PK_KPENTER
: /* Odd keypad modes handled above */
6054 if (modifiers
== 0) {
6056 if (term
->cr_lf_return
)
6060 default: break; /* else gcc warns `enum value not used' */
6063 /* SCO function keys and editing keys */
6064 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
6065 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
6066 static char const codes
[] =
6067 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
6068 int index
= keysym
- PK_F1
;
6070 if (modifiers
& PKM_SHIFT
) index
+= 12;
6071 if (modifiers
& PKM_CONTROL
) index
+= 24;
6072 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
6075 if (PK_ISEDITING(keysym
)) {
6079 case PK_DELETE
: *p
++ = 0x7f; goto done
;
6080 case PK_HOME
: xkey
= 'H'; break;
6081 case PK_INSERT
: xkey
= 'L'; break;
6082 case PK_END
: xkey
= 'F'; break;
6083 case PK_PAGEUP
: xkey
= 'I'; break;
6084 case PK_PAGEDOWN
: xkey
= 'G'; break;
6085 default: break; /* else gcc warns `enum value not used' */
6087 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
6091 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
6094 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
6095 /* Xterm shuffles these keys, apparently. */
6097 case PK_HOME
: keysym
= PK_INSERT
; break;
6098 case PK_INSERT
: keysym
= PK_HOME
; break;
6099 case PK_DELETE
: keysym
= PK_END
; break;
6100 case PK_END
: keysym
= PK_PAGEUP
; break;
6101 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
6102 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
6103 default: break; /* else gcc warns `enum value not used' */
6108 if (term
->cfg
.rxvt_homeend
&&
6109 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
6110 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
6114 if (term
->vt52_mode
) {
6118 * A real VT52 doesn't have these, and a VT220 doesn't
6119 * send anything for them in VT52 mode.
6122 case PK_HOME
: xkey
= 'H'; break;
6123 case PK_INSERT
: xkey
= 'L'; break;
6124 case PK_DELETE
: xkey
= 'M'; break;
6125 case PK_END
: xkey
= 'E'; break;
6126 case PK_PAGEUP
: xkey
= 'I'; break;
6127 case PK_PAGEDOWN
: xkey
= 'G'; break;
6128 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
6130 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6135 case PK_HOME
: code
= 1; break;
6136 case PK_INSERT
: code
= 2; break;
6137 case PK_DELETE
: code
= 3; break;
6138 case PK_END
: code
= 4; break;
6139 case PK_PAGEUP
: code
= 5; break;
6140 case PK_PAGEDOWN
: code
= 6; break;
6141 default: code
= 0; break; /* else gcc warns `enum value not used' */
6143 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
6147 if (PK_ISFKEY(keysym
)) {
6148 /* Map Shift+F1-F10 to F11-F20 */
6149 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
6151 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
6153 /* XXX This overrides the XTERM/VT52 mode below */
6155 if (keysym
>= PK_F6
) offt
++;
6156 if (keysym
>= PK_F12
) offt
++;
6157 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
6158 'P' + keysym
- PK_F1
- offt
);
6161 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
6162 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
6165 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
6166 if (term
->vt52_mode
)
6167 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
6169 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
6172 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
6176 if (PK_ISCURSOR(keysym
)) {
6180 case PK_UP
: xkey
= 'A'; break;
6181 case PK_DOWN
: xkey
= 'B'; break;
6182 case PK_RIGHT
: xkey
= 'C'; break;
6183 case PK_LEFT
: xkey
= 'D'; break;
6184 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
6185 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
6187 if (term
->vt52_mode
)
6188 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6190 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
6192 /* Useful mapping of Ctrl-arrows */
6193 if (modifiers
== PKM_CONTROL
)
6197 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
6199 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
6205 if (p
> output
|| tlen
> 0) {
6207 * Interrupt an ongoing paste. I'm not sure
6208 * this is sensible, but for the moment it's
6209 * preferable to having to faff about buffering
6215 * We need not bother about stdin backlogs
6216 * here, because in GUI PuTTY we can't do
6217 * anything about it anyway; there's no means
6218 * of asking Windows to hold off on KEYDOWN
6219 * messages. We _have_ to buffer everything
6222 term_seen_key_event(term
);
6226 fprintf(stderr
, "sending ESC\n");
6228 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
6233 fprintf(stderr
, "sending %d bytes:", p
- output
);
6234 for (i
= 0; i
< p
- output
; i
++)
6235 fprintf(stderr
, " %02x", output
[i
]);
6236 fprintf(stderr
, "\n");
6238 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
6239 } else if (tlen
> 0) {
6241 fprintf(stderr
, "sending %d unichars:", tlen
);
6242 for (i
= 0; i
< tlen
; i
++)
6243 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
6244 fprintf(stderr
, "\n");
6246 luni_send(term
->ldisc
, text
, tlen
, 1);
6251 void term_nopaste(Terminal
*term
)
6253 if (term
->paste_len
== 0)
6255 sfree(term
->paste_buffer
);
6256 term
->paste_buffer
= NULL
;
6257 term
->paste_len
= 0;
6260 int term_paste_pending(Terminal
*term
)
6262 return term
->paste_len
!= 0;
6265 void term_paste(Terminal
*term
)
6267 long now
, paste_diff
;
6269 if (term
->paste_len
== 0)
6272 /* Don't wait forever to paste */
6273 if (term
->paste_hold
) {
6274 now
= GETTICKCOUNT();
6275 paste_diff
= now
- term
->last_paste
;
6276 if (paste_diff
>= 0 && paste_diff
< 450)
6279 term
->paste_hold
= 0;
6281 while (term
->paste_pos
< term
->paste_len
) {
6283 while (n
+ term
->paste_pos
< term
->paste_len
) {
6284 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
6288 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
6289 term
->paste_pos
+= n
;
6291 if (term
->paste_pos
< term
->paste_len
) {
6292 term
->paste_hold
= 1;
6296 sfree(term
->paste_buffer
);
6297 term
->paste_buffer
= NULL
;
6298 term
->paste_len
= 0;
6301 static void deselect(Terminal
*term
)
6303 term
->selstate
= NO_SELECTION
;
6304 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
6307 void term_deselect(Terminal
*term
)
6313 int term_ldisc(Terminal
*term
, int option
)
6315 if (option
== LD_ECHO
)
6316 return term
->term_echoing
;
6317 if (option
== LD_EDIT
)
6318 return term
->term_editing
;
6322 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
6324 bufchain_add(&term
->inbuf
, data
, len
);
6326 if (!term
->in_term_out
) {
6327 term
->in_term_out
= TRUE
;
6328 term_reset_cblink(term
);
6330 * During drag-selects, we do not process terminal input,
6331 * because the user will want the screen to hold still to
6334 if (term
->selstate
!= DRAGGING
)
6336 term
->in_term_out
= FALSE
;
6340 * term_out() always completely empties inbuf. Therefore,
6341 * there's no reason at all to return anything other than zero
6342 * from this function, because there _can't_ be a question of
6343 * the remote side needing to wait until term_out() has cleared
6346 * This is a slightly suboptimal way to deal with SSH-2 - in
6347 * principle, the window mechanism would allow us to continue
6348 * to accept data on forwarded ports and X connections even
6349 * while the terminal processing was going slowly - but we
6350 * can't do the 100% right thing without moving the terminal
6351 * processing into a separate thread, and that might hurt
6352 * portability. So we manage stdout buffering the old SSH-1 way:
6353 * if the terminal processing goes slowly, the whole SSH
6354 * connection stops accepting data until it's ready.
6356 * In practice, I can't imagine this causing serious trouble.
6362 * Write untrusted data to the terminal.
6363 * The only control character that should be honoured is \n (which
6364 * will behave as a CRLF).
6366 int term_data_untrusted(Terminal
*term
, const char *data
, int len
)
6369 /* FIXME: more sophisticated checking? */
6370 for (i
= 0; i
< len
; i
++) {
6371 if (data
[i
] == '\n')
6372 term_data(term
, 1, "\r\n", 2);
6373 else if (data
[i
] & 0x60)
6374 term_data(term
, 1, data
+ i
, 1);
6376 return 0; /* assumes that term_data() always returns 0 */
6379 void term_provide_logctx(Terminal
*term
, void *logctx
)
6381 term
->logctx
= logctx
;
6384 void term_set_focus(Terminal
*term
, int has_focus
)
6386 term
->has_focus
= has_focus
;
6387 term_schedule_cblink(term
);
6391 * Provide "auto" settings for remote tty modes, suitable for an
6392 * application with a terminal window.
6394 char *term_get_ttymode(Terminal
*term
, const char *mode
)
6397 if (strcmp(mode
, "ERASE") == 0) {
6398 val
= term
->cfg
.bksp_is_delete ?
"^?" : "^H";
6400 /* FIXME: perhaps we should set ONLCR based on cfg.lfhascr as well? */
6404 struct term_userpass_state
{
6406 int done_prompt
; /* printed out prompt yet? */
6407 size_t pos
; /* cursor position */
6411 * Process some terminal data in the course of username/password
6414 int term_get_userpass_input(Terminal
*term
, prompts_t
*p
,
6415 unsigned char *in
, int inlen
)
6417 struct term_userpass_state
*s
= (struct term_userpass_state
*)p
->data
;
6420 * First call. Set some stuff up.
6422 p
->data
= s
= snew(struct term_userpass_state
);
6425 /* We only print the `name' caption if we have to... */
6426 if (p
->name_reqd
&& p
->name
) {
6427 size_t l
= strlen(p
->name
);
6428 term_data_untrusted(term
, p
->name
, l
);
6429 if (p
->name
[l
-1] != '\n')
6430 term_data_untrusted(term
, "\n", 1);
6432 /* ...but we always print any `instruction'. */
6433 if (p
->instruction
) {
6434 size_t l
= strlen(p
->instruction
);
6435 term_data_untrusted(term
, p
->instruction
, l
);
6436 if (p
->instruction
[l
-1] != '\n')
6437 term_data_untrusted(term
, "\n", 1);
6440 * Zero all the results, in case we abort half-way through.
6444 for (i
= 0; i
< (int)p
->n_prompts
; i
++)
6445 memset(p
->prompts
[i
]->result
, 0, p
->prompts
[i
]->result_len
);
6449 while (s
->curr_prompt
< p
->n_prompts
) {
6451 prompt_t
*pr
= p
->prompts
[s
->curr_prompt
];
6452 int finished_prompt
= 0;
6454 if (!s
->done_prompt
) {
6455 term_data_untrusted(term
, pr
->prompt
, strlen(pr
->prompt
));
6460 /* Breaking out here ensures that the prompt is printed even
6461 * if we're now waiting for user data. */
6462 if (!in
|| !inlen
) break;
6464 /* FIXME: should we be using local-line-editing code instead? */
6465 while (!finished_prompt
&& inlen
) {
6471 term_data(term
, 0, "\r\n", 2);
6472 pr
->result
[s
->pos
] = '\0';
6473 pr
->result
[pr
->result_len
- 1] = '\0';
6474 /* go to next prompt, if any */
6477 finished_prompt
= 1; /* break out */
6483 term_data(term
, 0, "\b \b", 3);
6489 while (s
->pos
> 0) {
6491 term_data(term
, 0, "\b \b", 3);
6497 /* Immediate abort. */
6498 term_data(term
, 0, "\r\n", 2);
6501 return 0; /* user abort */
6504 * This simplistic check for printability is disabled
6505 * when we're doing password input, because some people
6506 * have control characters in their passwords.
6509 (c
>= ' ' && c
<= '~') ||
6510 ((unsigned char) c
>= 160))
6511 && s
->pos
< pr
->result_len
- 1) {
6512 pr
->result
[s
->pos
++] = c
;
6514 term_data(term
, 0, &c
, 1);
6522 if (s
->curr_prompt
< p
->n_prompts
) {
6523 return -1; /* more data required */
6527 return +1; /* all done */