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
->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
->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
->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
= conf_get_int(term
->conf
, CONF_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
= conf_get_int(term
->conf
, CONF_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
= conf_get_int(term
->conf
, CONF_app_cursor
);
1220 term
->app_keypad_keys
= conf_get_int(term
->conf
, CONF_app_keypad
);
1221 term
->use_bce
= conf_get_int(term
->conf
, CONF_bce
);
1222 term
->blink_is_real
= conf_get_int(term
->conf
, CONF_blinktext
);
1223 term
->erase_char
= term
->basic_erase_char
;
1224 term
->alt_which
= 0;
1225 term_print_finish(term
);
1226 term
->xterm_mouse
= 0;
1227 set_raw_mouse_mode(term
->frontend
, FALSE
);
1230 for (i
= 0; i
< 256; i
++)
1231 term
->wordness
[i
] = conf_get_int_int(term
->conf
, CONF_wordness
, i
);
1234 swap_screen(term
, 1, FALSE
, FALSE
);
1235 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1236 swap_screen(term
, 0, FALSE
, FALSE
);
1238 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1239 term
->curs
.y
= find_last_nonempty_line(term
, term
->screen
) + 1;
1240 if (term
->curs
.y
== term
->rows
) {
1242 scroll(term
, 0, term
->rows
- 1, 1, TRUE
);
1248 term_schedule_tblink(term
);
1249 term_schedule_cblink(term
);
1253 * Force a screen update.
1255 void term_update(Terminal
*term
)
1259 term
->window_update_pending
= FALSE
;
1261 ctx
= get_ctx(term
->frontend
);
1263 int need_sbar_update
= term
->seen_disp_event
;
1264 if (term
->seen_disp_event
&& term
->scroll_on_disp
) {
1265 term
->disptop
= 0; /* return to main screen */
1266 term
->seen_disp_event
= 0;
1267 need_sbar_update
= TRUE
;
1270 if (need_sbar_update
)
1272 do_paint(term
, ctx
, TRUE
);
1273 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1279 * Called from front end when a keypress occurs, to trigger
1280 * anything magical that needs to happen in that situation.
1282 void term_seen_key_event(Terminal
*term
)
1285 * On any keypress, clear the bell overload mechanism
1286 * completely, on the grounds that large numbers of
1287 * beeps coming from deliberate key action are likely
1288 * to be intended (e.g. beeps from filename completion
1289 * blocking repeatedly).
1291 term
->beep_overloaded
= FALSE
;
1292 while (term
->beephead
) {
1293 struct beeptime
*tmp
= term
->beephead
;
1294 term
->beephead
= tmp
->next
;
1297 term
->beeptail
= NULL
;
1301 * Reset the scrollback on keypress, if we're doing that.
1303 if (term
->scroll_on_key
) {
1304 term
->disptop
= 0; /* return to main screen */
1305 seen_disp_event(term
);
1310 * Same as power_on(), but an external function.
1312 void term_pwron(Terminal
*term
, int clear
)
1314 power_on(term
, clear
);
1315 if (term
->ldisc
) /* cause ldisc to notice changes */
1316 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1322 static void set_erase_char(Terminal
*term
)
1324 term
->erase_char
= term
->basic_erase_char
;
1326 term
->erase_char
.attr
= (term
->curr_attr
&
1327 (ATTR_FGMASK
| ATTR_BGMASK
));
1331 * We copy a bunch of stuff out of the Conf structure into local
1332 * fields in the Terminal structure, to avoid the repeated tree234
1333 * lookups which would be involved in fetching them from the former
1336 void term_copy_stuff_from_conf(Terminal
*term
)
1338 term
->ansi_colour
= conf_get_int(term
->conf
, CONF_ansi_colour
);
1339 term
->arabicshaping
= conf_get_int(term
->conf
, CONF_arabicshaping
);
1340 term
->beep
= conf_get_int(term
->conf
, CONF_beep
);
1341 term
->bellovl
= conf_get_int(term
->conf
, CONF_bellovl
);
1342 term
->bellovl_n
= conf_get_int(term
->conf
, CONF_bellovl_n
);
1343 term
->bellovl_s
= conf_get_int(term
->conf
, CONF_bellovl_s
);
1344 term
->bellovl_t
= conf_get_int(term
->conf
, CONF_bellovl_t
);
1345 term
->bidi
= conf_get_int(term
->conf
, CONF_bidi
);
1346 term
->bksp_is_delete
= conf_get_int(term
->conf
, CONF_bksp_is_delete
);
1347 term
->blink_cur
= conf_get_int(term
->conf
, CONF_blink_cur
);
1348 term
->blinktext
= conf_get_int(term
->conf
, CONF_blinktext
);
1349 term
->cjk_ambig_wide
= conf_get_int(term
->conf
, CONF_cjk_ambig_wide
);
1350 term
->conf_height
= conf_get_int(term
->conf
, CONF_height
);
1351 term
->conf_width
= conf_get_int(term
->conf
, CONF_width
);
1352 term
->crhaslf
= conf_get_int(term
->conf
, CONF_crhaslf
);
1353 term
->erase_to_scrollback
= conf_get_int(term
->conf
, CONF_erase_to_scrollback
);
1354 term
->funky_type
= conf_get_int(term
->conf
, CONF_funky_type
);
1355 term
->lfhascr
= conf_get_int(term
->conf
, CONF_lfhascr
);
1356 term
->logflush
= conf_get_int(term
->conf
, CONF_logflush
);
1357 term
->logtype
= conf_get_int(term
->conf
, CONF_logtype
);
1358 term
->mouse_override
= conf_get_int(term
->conf
, CONF_mouse_override
);
1359 term
->nethack_keypad
= conf_get_int(term
->conf
, CONF_nethack_keypad
);
1360 term
->no_alt_screen
= conf_get_int(term
->conf
, CONF_no_alt_screen
);
1361 term
->no_applic_c
= conf_get_int(term
->conf
, CONF_no_applic_c
);
1362 term
->no_applic_k
= conf_get_int(term
->conf
, CONF_no_applic_k
);
1363 term
->no_dbackspace
= conf_get_int(term
->conf
, CONF_no_dbackspace
);
1364 term
->no_mouse_rep
= conf_get_int(term
->conf
, CONF_no_mouse_rep
);
1365 term
->no_remote_charset
= conf_get_int(term
->conf
, CONF_no_remote_charset
);
1366 term
->no_remote_resize
= conf_get_int(term
->conf
, CONF_no_remote_resize
);
1367 term
->no_remote_wintitle
= conf_get_int(term
->conf
, CONF_no_remote_wintitle
);
1368 term
->rawcnp
= conf_get_int(term
->conf
, CONF_rawcnp
);
1369 term
->rect_select
= conf_get_int(term
->conf
, CONF_rect_select
);
1370 term
->remote_qtitle_action
= conf_get_int(term
->conf
, CONF_remote_qtitle_action
);
1371 term
->rxvt_homeend
= conf_get_int(term
->conf
, CONF_rxvt_homeend
);
1372 term
->scroll_on_disp
= conf_get_int(term
->conf
, CONF_scroll_on_disp
);
1373 term
->scroll_on_key
= conf_get_int(term
->conf
, CONF_scroll_on_key
);
1374 term
->xterm_256_colour
= conf_get_int(term
->conf
, CONF_xterm_256_colour
);
1377 * Parse the control-character escapes in the configured
1378 * answerback string.
1381 char *answerback
= conf_get_str(term
->conf
, CONF_answerback
);
1382 int maxlen
= strlen(answerback
);
1384 term
->answerback
= snewn(maxlen
, char);
1385 term
->answerbacklen
= 0;
1387 while (*answerback
) {
1389 char c
= ctrlparse(answerback
, &n
);
1391 term
->answerback
[term
->answerbacklen
++] = c
;
1394 term
->answerback
[term
->answerbacklen
++] = *answerback
++;
1401 * When the user reconfigures us, we need to check the forbidden-
1402 * alternate-screen config option, disable raw mouse mode if the
1403 * user has disabled mouse reporting, and abandon a print job if
1404 * the user has disabled printing.
1406 void term_reconfig(Terminal
*term
, Conf
*conf
)
1409 * Before adopting the new config, check all those terminal
1410 * settings which control power-on defaults; and if they've
1411 * changed, we will modify the current state as well as the
1412 * default one. The full list is: Auto wrap mode, DEC Origin
1413 * Mode, BCE, blinking text, character classes.
1415 int reset_wrap
, reset_decom
, reset_bce
, reset_tblink
, reset_charclass
;
1418 reset_wrap
= (conf_get_int(term
->conf
, CONF_wrap_mode
) !=
1419 conf_get_int(conf
, CONF_wrap_mode
));
1420 reset_decom
= (conf_get_int(term
->conf
, CONF_dec_om
) !=
1421 conf_get_int(conf
, CONF_dec_om
));
1422 reset_bce
= (conf_get_int(term
->conf
, CONF_bce
) !=
1423 conf_get_int(conf
, CONF_bce
));
1424 reset_tblink
= (conf_get_int(term
->conf
, CONF_blinktext
) !=
1425 conf_get_int(conf
, CONF_blinktext
));
1426 reset_charclass
= 0;
1427 for (i
= 0; i
< 256; i
++)
1428 if (conf_get_int_int(term
->conf
, CONF_wordness
, i
) !=
1429 conf_get_int_int(conf
, CONF_wordness
, i
))
1430 reset_charclass
= 1;
1433 * If the bidi or shaping settings have changed, flush the bidi
1436 if (conf_get_int(term
->conf
, CONF_arabicshaping
) !=
1437 conf_get_int(conf
, CONF_arabicshaping
) ||
1438 conf_get_int(term
->conf
, CONF_bidi
) !=
1439 conf_get_int(conf
, CONF_bidi
)) {
1440 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1441 sfree(term
->pre_bidi_cache
[i
].chars
);
1442 sfree(term
->post_bidi_cache
[i
].chars
);
1443 term
->pre_bidi_cache
[i
].width
= -1;
1444 term
->pre_bidi_cache
[i
].chars
= NULL
;
1445 term
->post_bidi_cache
[i
].width
= -1;
1446 term
->post_bidi_cache
[i
].chars
= NULL
;
1450 conf_free(term
->conf
);
1451 term
->conf
= conf_copy(conf
);
1454 term
->alt_wrap
= term
->wrap
= conf_get_int(term
->conf
, CONF_wrap_mode
);
1456 term
->alt_om
= term
->dec_om
= conf_get_int(term
->conf
, CONF_dec_om
);
1458 term
->use_bce
= conf_get_int(term
->conf
, CONF_bce
);
1459 set_erase_char(term
);
1462 term
->blink_is_real
= conf_get_int(term
->conf
, CONF_blinktext
);
1464 if (reset_charclass
)
1465 for (i
= 0; i
< 256; i
++)
1466 term
->wordness
[i
] = conf_get_int_int(term
->conf
, CONF_wordness
, i
);
1468 if (conf_get_int(term
->conf
, CONF_no_alt_screen
))
1469 swap_screen(term
, 0, FALSE
, FALSE
);
1470 if (conf_get_int(term
->conf
, CONF_no_mouse_rep
)) {
1471 term
->xterm_mouse
= 0;
1472 set_raw_mouse_mode(term
->frontend
, 0);
1474 if (conf_get_int(term
->conf
, CONF_no_remote_charset
)) {
1475 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1476 term
->sco_acs
= term
->alt_sco_acs
= 0;
1479 if (!conf_get_str(term
->conf
, CONF_printer
)) {
1480 term_print_finish(term
);
1482 term_schedule_tblink(term
);
1483 term_schedule_cblink(term
);
1484 term_copy_stuff_from_conf(term
);
1488 * Clear the scrollback.
1490 void term_clrsb(Terminal
*term
)
1492 unsigned char *line
;
1494 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1495 sfree(line
); /* this is compressed data, not a termline */
1497 term
->tempsblines
= 0;
1498 term
->alt_sblines
= 0;
1503 * Initialise the terminal.
1505 Terminal
*term_init(Conf
*myconf
, struct unicode_data
*ucsdata
,
1511 * Allocate a new Terminal structure and initialise the fields
1514 term
= snew(Terminal
);
1515 term
->frontend
= frontend
;
1516 term
->ucsdata
= ucsdata
;
1517 term
->conf
= conf_copy(myconf
);
1518 term
->logctx
= NULL
;
1519 term
->compatibility_level
= TM_PUTTY
;
1520 strcpy(term
->id_string
, "\033[?6c");
1521 term
->cblink_pending
= term
->tblink_pending
= FALSE
;
1522 term
->paste_buffer
= NULL
;
1523 term
->paste_len
= 0;
1524 term
->last_paste
= 0;
1525 bufchain_init(&term
->inbuf
);
1526 bufchain_init(&term
->printer_buf
);
1527 term
->printing
= term
->only_printing
= FALSE
;
1528 term
->print_job
= NULL
;
1529 term
->vt52_mode
= FALSE
;
1530 term
->cr_lf_return
= FALSE
;
1531 term
->seen_disp_event
= FALSE
;
1532 term
->mouse_is_down
= FALSE
;
1533 term
->reset_132
= FALSE
;
1534 term
->cblinker
= term
->tblinker
= 0;
1535 term
->has_focus
= 1;
1536 term
->repeat_off
= FALSE
;
1537 term
->termstate
= TOPLEVEL
;
1538 term
->selstate
= NO_SELECTION
;
1541 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1542 term
->tempsblines
= 0;
1543 term
->alt_sblines
= 0;
1545 term
->disptext
= NULL
;
1546 term
->dispcursx
= term
->dispcursy
= -1;
1549 term
->rows
= term
->cols
= -1;
1550 power_on(term
, TRUE
);
1551 term
->beephead
= term
->beeptail
= NULL
;
1552 #ifdef OPTIMISE_SCROLL
1553 term
->scrollhead
= term
->scrolltail
= NULL
;
1554 #endif /* OPTIMISE_SCROLL */
1556 term
->lastbeep
= FALSE
;
1557 term
->beep_overloaded
= FALSE
;
1558 term
->attr_mask
= 0xffffffff;
1559 term
->resize_fn
= NULL
;
1560 term
->resize_ctx
= NULL
;
1561 term
->in_term_out
= FALSE
;
1563 term
->ltemp_size
= 0;
1564 term
->wcFrom
= NULL
;
1566 term
->wcFromTo_size
= 0;
1568 term
->window_update_pending
= FALSE
;
1570 term
->bidi_cache_size
= 0;
1571 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1574 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1575 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1576 term
->basic_erase_char
.cc_next
= 0;
1577 term
->erase_char
= term
->basic_erase_char
;
1579 term_copy_stuff_from_conf(term
);
1584 void term_free(Terminal
*term
)
1587 struct beeptime
*beep
;
1590 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1591 sfree(line
); /* compressed data, not a termline */
1592 freetree234(term
->scrollback
);
1593 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1595 freetree234(term
->screen
);
1596 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1598 freetree234(term
->alt_screen
);
1599 if (term
->disptext
) {
1600 for (i
= 0; i
< term
->rows
; i
++)
1601 freeline(term
->disptext
[i
]);
1603 sfree(term
->disptext
);
1604 while (term
->beephead
) {
1605 beep
= term
->beephead
;
1606 term
->beephead
= beep
->next
;
1609 bufchain_clear(&term
->inbuf
);
1611 printer_finish_job(term
->print_job
);
1612 bufchain_clear(&term
->printer_buf
);
1613 sfree(term
->paste_buffer
);
1615 sfree(term
->wcFrom
);
1618 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1619 sfree(term
->pre_bidi_cache
[i
].chars
);
1620 sfree(term
->post_bidi_cache
[i
].chars
);
1622 sfree(term
->pre_bidi_cache
);
1623 sfree(term
->post_bidi_cache
);
1625 expire_timer_context(term
);
1627 conf_free(term
->conf
);
1633 * Set up the terminal for a given size.
1635 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1638 termline
**newdisp
, *line
;
1639 int i
, j
, oldrows
= term
->rows
;
1641 int save_alt_which
= term
->alt_which
;
1643 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1644 newsavelines
== term
->savelines
)
1645 return; /* nothing to do */
1647 /* Behave sensibly if we're given zero (or negative) rows/cols */
1649 if (newrows
< 1) newrows
= 1;
1650 if (newcols
< 1) newcols
= 1;
1653 swap_screen(term
, 0, FALSE
, FALSE
);
1655 term
->alt_t
= term
->marg_t
= 0;
1656 term
->alt_b
= term
->marg_b
= newrows
- 1;
1658 if (term
->rows
== -1) {
1659 term
->scrollback
= newtree234(NULL
);
1660 term
->screen
= newtree234(NULL
);
1661 term
->tempsblines
= 0;
1666 * Resize the screen and scrollback. We only need to shift
1667 * lines around within our data structures, because lineptr()
1668 * will take care of resizing each individual line if
1671 * - If the new screen is longer, we shunt lines in from temporary
1672 * scrollback if possible, otherwise we add new blank lines at
1675 * - If the new screen is shorter, we remove any blank lines at
1676 * the bottom if possible, otherwise shunt lines above the cursor
1677 * to scrollback if possible, otherwise delete lines below the
1680 * - Then, if the new scrollback length is less than the
1681 * amount of scrollback we actually have, we must throw some
1684 sblen
= count234(term
->scrollback
);
1685 /* Do this loop to expand the screen if newrows > rows */
1686 assert(term
->rows
== count234(term
->screen
));
1687 while (term
->rows
< newrows
) {
1688 if (term
->tempsblines
> 0) {
1689 unsigned char *cline
;
1690 /* Insert a line from the scrollback at the top of the screen. */
1691 assert(sblen
>= term
->tempsblines
);
1692 cline
= delpos234(term
->scrollback
, --sblen
);
1693 line
= decompressline(cline
, NULL
);
1695 line
->temporary
= FALSE
; /* reconstituted line is now real */
1696 term
->tempsblines
-= 1;
1697 addpos234(term
->screen
, line
, 0);
1699 term
->savecurs
.y
+= 1;
1701 term
->alt_savecurs
.y
+= 1;
1703 /* Add a new blank line at the bottom of the screen. */
1704 line
= newline(term
, newcols
, FALSE
);
1705 addpos234(term
->screen
, line
, count234(term
->screen
));
1709 /* Do this loop to shrink the screen if newrows < rows */
1710 while (term
->rows
> newrows
) {
1711 if (term
->curs
.y
< term
->rows
- 1) {
1712 /* delete bottom row, unless it contains the cursor */
1713 sfree(delpos234(term
->screen
, term
->rows
- 1));
1715 /* push top row to scrollback */
1716 line
= delpos234(term
->screen
, 0);
1717 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1719 term
->tempsblines
+= 1;
1721 term
->savecurs
.y
-= 1;
1723 term
->alt_savecurs
.y
-= 1;
1727 assert(term
->rows
== newrows
);
1728 assert(count234(term
->screen
) == newrows
);
1730 /* Delete any excess lines from the scrollback. */
1731 while (sblen
> newsavelines
) {
1732 line
= delpos234(term
->scrollback
, 0);
1736 if (sblen
< term
->tempsblines
)
1737 term
->tempsblines
= sblen
;
1738 assert(count234(term
->scrollback
) <= newsavelines
);
1739 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1742 /* Make a new displayed text buffer. */
1743 newdisp
= snewn(newrows
, termline
*);
1744 for (i
= 0; i
< newrows
; i
++) {
1745 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1746 for (j
= 0; j
< newcols
; j
++)
1747 newdisp
[i
]->chars
[j
].attr
= ATTR_INVALID
;
1749 if (term
->disptext
) {
1750 for (i
= 0; i
< oldrows
; i
++)
1751 freeline(term
->disptext
[i
]);
1753 sfree(term
->disptext
);
1754 term
->disptext
= newdisp
;
1755 term
->dispcursx
= term
->dispcursy
= -1;
1757 /* Make a new alternate screen. */
1758 newalt
= newtree234(NULL
);
1759 for (i
= 0; i
< newrows
; i
++) {
1760 line
= newline(term
, newcols
, TRUE
);
1761 addpos234(newalt
, line
, i
);
1763 if (term
->alt_screen
) {
1764 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1766 freetree234(term
->alt_screen
);
1768 term
->alt_screen
= newalt
;
1769 term
->alt_sblines
= 0;
1771 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1774 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1775 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1778 /* Check that the cursor positions are still valid. */
1779 if (term
->savecurs
.y
< 0)
1780 term
->savecurs
.y
= 0;
1781 if (term
->savecurs
.y
>= newrows
)
1782 term
->savecurs
.y
= newrows
- 1;
1783 if (term
->savecurs
.x
>= newcols
)
1784 term
->savecurs
.x
= newcols
- 1;
1785 if (term
->alt_savecurs
.y
< 0)
1786 term
->alt_savecurs
.y
= 0;
1787 if (term
->alt_savecurs
.y
>= newrows
)
1788 term
->alt_savecurs
.y
= newrows
- 1;
1789 if (term
->alt_savecurs
.x
>= newcols
)
1790 term
->alt_savecurs
.x
= newcols
- 1;
1791 if (term
->curs
.y
< 0)
1793 if (term
->curs
.y
>= newrows
)
1794 term
->curs
.y
= newrows
- 1;
1795 if (term
->curs
.x
>= newcols
)
1796 term
->curs
.x
= newcols
- 1;
1797 if (term
->alt_y
< 0)
1799 if (term
->alt_y
>= newrows
)
1800 term
->alt_y
= newrows
- 1;
1801 if (term
->alt_x
>= newcols
)
1802 term
->alt_x
= newcols
- 1;
1803 term
->alt_x
= term
->alt_y
= 0;
1804 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1806 term
->rows
= newrows
;
1807 term
->cols
= newcols
;
1808 term
->savelines
= newsavelines
;
1810 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1814 if (term
->resize_fn
)
1815 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1819 * Hand a function and context pointer to the terminal which it can
1820 * use to notify a back end of resizes.
1822 void term_provide_resize_fn(Terminal
*term
,
1823 void (*resize_fn
)(void *, int, int),
1826 term
->resize_fn
= resize_fn
;
1827 term
->resize_ctx
= resize_ctx
;
1828 if (resize_fn
&& term
->cols
> 0 && term
->rows
> 0)
1829 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1832 /* Find the bottom line on the screen that has any content.
1833 * If only the top line has content, returns 0.
1834 * If no lines have content, return -1.
1836 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1839 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1840 termline
*line
= index234(screen
, i
);
1842 for (j
= 0; j
< line
->cols
; j
++)
1843 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1845 if (j
!= line
->cols
) break;
1851 * Swap screens. If `reset' is TRUE and we have been asked to
1852 * switch to the alternate screen, we must bring most of its
1853 * configuration from the main screen and erase the contents of the
1854 * alternate screen completely. (This is even true if we're already
1855 * on it! Blame xterm.)
1857 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1864 reset
= FALSE
; /* do no weird resetting if which==0 */
1866 if (which
!= term
->alt_which
) {
1867 term
->alt_which
= which
;
1869 ttr
= term
->alt_screen
;
1870 term
->alt_screen
= term
->screen
;
1872 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1874 if (!reset
&& !keep_cur_pos
)
1875 term
->curs
.x
= term
->alt_x
;
1878 if (!reset
&& !keep_cur_pos
)
1879 term
->curs
.y
= term
->alt_y
;
1882 if (!reset
) term
->marg_t
= term
->alt_t
;
1885 if (!reset
) term
->marg_b
= term
->alt_b
;
1888 if (!reset
) term
->dec_om
= term
->alt_om
;
1891 if (!reset
) term
->wrap
= term
->alt_wrap
;
1894 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1895 term
->alt_wnext
= t
;
1897 if (!reset
) term
->insert
= term
->alt_ins
;
1900 if (!reset
) term
->cset
= term
->alt_cset
;
1903 if (!reset
) term
->utf
= term
->alt_utf
;
1906 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1907 term
->alt_sco_acs
= t
;
1909 tp
= term
->savecurs
;
1910 if (!reset
&& !keep_cur_pos
)
1911 term
->savecurs
= term
->alt_savecurs
;
1912 term
->alt_savecurs
= tp
;
1913 t
= term
->save_cset
;
1914 if (!reset
&& !keep_cur_pos
)
1915 term
->save_cset
= term
->alt_save_cset
;
1916 term
->alt_save_cset
= t
;
1917 t
= term
->save_csattr
;
1918 if (!reset
&& !keep_cur_pos
)
1919 term
->save_csattr
= term
->alt_save_csattr
;
1920 term
->alt_save_csattr
= t
;
1921 t
= term
->save_attr
;
1922 if (!reset
&& !keep_cur_pos
)
1923 term
->save_attr
= term
->alt_save_attr
;
1924 term
->alt_save_attr
= t
;
1926 if (!reset
&& !keep_cur_pos
)
1927 term
->save_utf
= term
->alt_save_utf
;
1928 term
->alt_save_utf
= t
;
1929 t
= term
->save_wnext
;
1930 if (!reset
&& !keep_cur_pos
)
1931 term
->save_wnext
= term
->alt_save_wnext
;
1932 term
->alt_save_wnext
= t
;
1933 t
= term
->save_sco_acs
;
1934 if (!reset
&& !keep_cur_pos
)
1935 term
->save_sco_acs
= term
->alt_save_sco_acs
;
1936 term
->alt_save_sco_acs
= t
;
1939 if (reset
&& term
->screen
) {
1941 * Yes, this _is_ supposed to honour background-colour-erase.
1943 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1948 * Update the scroll bar.
1950 static void update_sbar(Terminal
*term
)
1952 int nscroll
= sblines(term
);
1953 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1954 nscroll
+ term
->disptop
, term
->rows
);
1958 * Check whether the region bounded by the two pointers intersects
1959 * the scroll region, and de-select the on-screen selection if so.
1961 static void check_selection(Terminal
*term
, pos from
, pos to
)
1963 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1968 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1969 * for backward.) `sb' is TRUE if the scrolling is permitted to
1970 * affect the scrollback buffer.
1972 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1976 #ifdef OPTIMISE_SCROLL
1977 int olddisptop
, shift
;
1978 #endif /* OPTIMISE_SCROLL */
1980 if (topline
!= 0 || term
->alt_which
!= 0)
1983 #ifdef OPTIMISE_SCROLL
1984 olddisptop
= term
->disptop
;
1986 #endif /* OPTIMISE_SCROLL */
1989 line
= delpos234(term
->screen
, botline
);
1990 resizeline(term
, line
, term
->cols
);
1991 for (i
= 0; i
< term
->cols
; i
++)
1992 copy_termchar(line
, i
, &term
->erase_char
);
1993 line
->lattr
= LATTR_NORM
;
1994 addpos234(term
->screen
, line
, topline
);
1996 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1998 if (term
->selstart
.y
> botline
) {
1999 term
->selstart
.y
= botline
+ 1;
2000 term
->selstart
.x
= 0;
2003 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
2005 if (term
->selend
.y
> botline
) {
2006 term
->selend
.y
= botline
+ 1;
2015 line
= delpos234(term
->screen
, topline
);
2016 #ifdef TERM_CC_DIAGS
2019 if (sb
&& term
->savelines
> 0) {
2020 int sblen
= count234(term
->scrollback
);
2022 * We must add this line to the scrollback. We'll
2023 * remove a line from the top of the scrollback if
2024 * the scrollback is full.
2026 if (sblen
== term
->savelines
) {
2027 unsigned char *cline
;
2030 cline
= delpos234(term
->scrollback
, 0);
2033 term
->tempsblines
+= 1;
2035 addpos234(term
->scrollback
, compressline(line
), sblen
);
2037 /* now `line' itself can be reused as the bottom line */
2040 * If the user is currently looking at part of the
2041 * scrollback, and they haven't enabled any options
2042 * that are going to reset the scrollback as a
2043 * result of this movement, then the chances are
2044 * they'd like to keep looking at the same line. So
2045 * we move their viewpoint at the same rate as the
2046 * scroll, at least until their viewpoint hits the
2047 * top end of the scrollback buffer, at which point
2048 * we don't have the choice any more.
2050 * Thanks to Jan Holmen Holsten for the idea and
2051 * initial implementation.
2053 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
2056 resizeline(term
, line
, term
->cols
);
2057 for (i
= 0; i
< term
->cols
; i
++)
2058 copy_termchar(line
, i
, &term
->erase_char
);
2059 line
->lattr
= LATTR_NORM
;
2060 addpos234(term
->screen
, line
, botline
);
2063 * If the selection endpoints move into the scrollback,
2064 * we keep them moving until they hit the top. However,
2065 * of course, if the line _hasn't_ moved into the
2066 * scrollback then we don't do this, and cut them off
2067 * at the top of the scroll region.
2069 * This applies to selstart and selend (for an existing
2070 * selection), and also selanchor (for one being
2071 * selected as we speak).
2073 seltop
= sb ?
-term
->savelines
: topline
;
2075 if (term
->selstate
!= NO_SELECTION
) {
2076 if (term
->selstart
.y
>= seltop
&&
2077 term
->selstart
.y
<= botline
) {
2079 if (term
->selstart
.y
< seltop
) {
2080 term
->selstart
.y
= seltop
;
2081 term
->selstart
.x
= 0;
2084 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
2086 if (term
->selend
.y
< seltop
) {
2087 term
->selend
.y
= seltop
;
2091 if (term
->selanchor
.y
>= seltop
&&
2092 term
->selanchor
.y
<= botline
) {
2093 term
->selanchor
.y
--;
2094 if (term
->selanchor
.y
< seltop
) {
2095 term
->selanchor
.y
= seltop
;
2096 term
->selanchor
.x
= 0;
2104 #ifdef OPTIMISE_SCROLL
2105 shift
+= term
->disptop
- olddisptop
;
2106 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
2107 scroll_display(term
, topline
, botline
, shift
);
2108 #endif /* OPTIMISE_SCROLL */
2111 #ifdef OPTIMISE_SCROLL
2113 * Add a scroll of a region on the screen into the pending scroll list.
2114 * `lines' is +ve for scrolling forward, -ve for backward.
2116 * If the scroll is on the same area as the last scroll in the list,
2119 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
2121 struct scrollregion
*newscroll
;
2122 if (term
->scrolltail
&&
2123 term
->scrolltail
->topline
== topline
&&
2124 term
->scrolltail
->botline
== botline
) {
2125 term
->scrolltail
->lines
+= lines
;
2127 newscroll
= snew(struct scrollregion
);
2128 newscroll
->topline
= topline
;
2129 newscroll
->botline
= botline
;
2130 newscroll
->lines
= lines
;
2131 newscroll
->next
= NULL
;
2133 if (!term
->scrollhead
)
2134 term
->scrollhead
= newscroll
;
2136 term
->scrolltail
->next
= newscroll
;
2137 term
->scrolltail
= newscroll
;
2142 * Scroll the physical display, and our conception of it in disptext.
2144 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
2146 int distance
, nlines
, i
, j
;
2148 distance
= lines
> 0 ? lines
: -lines
;
2149 nlines
= botline
- topline
+ 1 - distance
;
2151 for (i
= 0; i
< nlines
; i
++)
2152 for (j
= 0; j
< term
->cols
; j
++)
2153 copy_termchar(term
->disptext
[i
], j
,
2154 term
->disptext
[i
+distance
]->chars
+j
);
2155 if (term
->dispcursy
>= 0 &&
2156 term
->dispcursy
>= topline
+ distance
&&
2157 term
->dispcursy
< topline
+ distance
+ nlines
)
2158 term
->dispcursy
-= distance
;
2159 for (i
= 0; i
< distance
; i
++)
2160 for (j
= 0; j
< term
->cols
; j
++)
2161 term
->disptext
[nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
2163 for (i
= nlines
; i
-- ;)
2164 for (j
= 0; j
< term
->cols
; j
++)
2165 copy_termchar(term
->disptext
[i
+distance
], j
,
2166 term
->disptext
[i
]->chars
+j
);
2167 if (term
->dispcursy
>= 0 &&
2168 term
->dispcursy
>= topline
&&
2169 term
->dispcursy
< topline
+ nlines
)
2170 term
->dispcursy
+= distance
;
2171 for (i
= 0; i
< distance
; i
++)
2172 for (j
= 0; j
< term
->cols
; j
++)
2173 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
2175 save_scroll(term
, topline
, botline
, lines
);
2177 #endif /* OPTIMISE_SCROLL */
2180 * Move the cursor to a given position, clipping at boundaries. We
2181 * may or may not want to clip at the scroll margin: marg_clip is 0
2182 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
2183 * even _being_ outside the margins.
2185 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
2189 if (x
>= term
->cols
)
2192 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
2195 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
2201 if (y
>= term
->rows
)
2205 term
->wrapnext
= FALSE
;
2209 * Save or restore the cursor and SGR mode.
2211 static void save_cursor(Terminal
*term
, int save
)
2214 term
->savecurs
= term
->curs
;
2215 term
->save_attr
= term
->curr_attr
;
2216 term
->save_cset
= term
->cset
;
2217 term
->save_utf
= term
->utf
;
2218 term
->save_wnext
= term
->wrapnext
;
2219 term
->save_csattr
= term
->cset_attr
[term
->cset
];
2220 term
->save_sco_acs
= term
->sco_acs
;
2222 term
->curs
= term
->savecurs
;
2223 /* Make sure the window hasn't shrunk since the save */
2224 if (term
->curs
.x
>= term
->cols
)
2225 term
->curs
.x
= term
->cols
- 1;
2226 if (term
->curs
.y
>= term
->rows
)
2227 term
->curs
.y
= term
->rows
- 1;
2229 term
->curr_attr
= term
->save_attr
;
2230 term
->cset
= term
->save_cset
;
2231 term
->utf
= term
->save_utf
;
2232 term
->wrapnext
= term
->save_wnext
;
2234 * wrapnext might reset to False if the x position is no
2235 * longer at the rightmost edge.
2237 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
2238 term
->wrapnext
= FALSE
;
2239 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
2240 term
->sco_acs
= term
->save_sco_acs
;
2241 set_erase_char(term
);
2246 * This function is called before doing _anything_ which affects
2247 * only part of a line of text. It is used to mark the boundary
2248 * between two character positions, and it indicates that some sort
2249 * of effect is going to happen on only one side of that boundary.
2251 * The effect of this function is to check whether a CJK
2252 * double-width character is straddling the boundary, and to remove
2253 * it and replace it with two spaces if so. (Of course, one or
2254 * other of those spaces is then likely to be replaced with
2255 * something else again, as a result of whatever happens next.)
2257 * Also, if the boundary is at the right-hand _edge_ of the screen,
2258 * it implies something deliberate is being done to the rightmost
2259 * column position; hence we must clear LATTR_WRAPPED2.
2261 * The input to the function is the coordinates of the _second_
2262 * character of the pair.
2264 static void check_boundary(Terminal
*term
, int x
, int y
)
2268 /* Validate input coordinates, just in case. */
2269 if (x
== 0 || x
> term
->cols
)
2272 ldata
= scrlineptr(y
);
2273 if (x
== term
->cols
) {
2274 ldata
->lattr
&= ~LATTR_WRAPPED2
;
2276 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
2277 clear_cc(ldata
, x
-1);
2279 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
2280 ldata
->chars
[x
] = ldata
->chars
[x
-1];
2286 * Erase a large portion of the screen: the whole screen, or the
2287 * whole line, or parts thereof.
2289 static void erase_lots(Terminal
*term
,
2290 int line_only
, int from_begin
, int to_end
)
2294 int erasing_lines_from_top
= 0;
2297 start
.y
= term
->curs
.y
;
2299 end
.y
= term
->curs
.y
+ 1;
2301 erase_lattr
= FALSE
;
2316 if (!from_begin
|| !to_end
)
2317 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2318 check_selection(term
, start
, end
);
2320 /* Clear screen also forces a full window redraw, just in case. */
2321 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
2322 term_invalidate(term
);
2324 /* Lines scrolled away shouldn't be brought back on if the terminal
2326 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
2327 erasing_lines_from_top
= 1;
2329 if (term
->erase_to_scrollback
&& erasing_lines_from_top
) {
2330 /* If it's a whole number of lines, starting at the top, and
2331 * we're fully erasing them, erase by scrolling and keep the
2332 * lines in the scrollback. */
2333 int scrolllines
= end
.y
;
2334 if (end
.y
== term
->rows
) {
2335 /* Shrink until we find a non-empty row.*/
2336 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
2338 if (scrolllines
> 0)
2339 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
2341 termline
*ldata
= scrlineptr(start
.y
);
2342 while (poslt(start
, end
)) {
2343 if (start
.x
== term
->cols
) {
2345 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
2347 ldata
->lattr
= LATTR_NORM
;
2349 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
2351 if (incpos(start
) && start
.y
< term
->rows
) {
2352 ldata
= scrlineptr(start
.y
);
2357 /* After an erase of lines from the top of the screen, we shouldn't
2358 * bring the lines back again if the terminal enlarges (since the user or
2359 * application has explictly thrown them away). */
2360 if (erasing_lines_from_top
&& !(term
->alt_which
))
2361 term
->tempsblines
= 0;
2365 * Insert or delete characters within the current line. n is +ve if
2366 * insertion is desired, and -ve for deletion.
2368 static void insch(Terminal
*term
, int n
)
2370 int dir
= (n
< 0 ?
-1 : +1);
2375 n
= (n
< 0 ?
-n
: n
);
2376 if (n
> term
->cols
- term
->curs
.x
)
2377 n
= term
->cols
- term
->curs
.x
;
2378 m
= term
->cols
- term
->curs
.x
- n
;
2379 cursplus
.y
= term
->curs
.y
;
2380 cursplus
.x
= term
->curs
.x
+ n
;
2381 check_selection(term
, term
->curs
, cursplus
);
2382 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2384 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2385 ldata
= scrlineptr(term
->curs
.y
);
2387 for (j
= 0; j
< m
; j
++)
2388 move_termchar(ldata
,
2389 ldata
->chars
+ term
->curs
.x
+ j
,
2390 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2392 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2395 move_termchar(ldata
,
2396 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2397 ldata
->chars
+ term
->curs
.x
+ j
);
2399 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2404 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2405 * whether the mode is a DEC private one or a normal one.)
2407 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2411 case 1: /* DECCKM: application cursor keys */
2412 term
->app_cursor_keys
= state
;
2414 case 2: /* DECANM: VT52 mode */
2415 term
->vt52_mode
= !state
;
2416 if (term
->vt52_mode
) {
2417 term
->blink_is_real
= FALSE
;
2418 term
->vt52_bold
= FALSE
;
2420 term
->blink_is_real
= term
->blinktext
;
2422 term_schedule_tblink(term
);
2424 case 3: /* DECCOLM: 80/132 columns */
2426 if (!term
->no_remote_resize
)
2427 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2428 term
->reset_132
= state
;
2429 term
->alt_t
= term
->marg_t
= 0;
2430 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2431 move(term
, 0, 0, 0);
2432 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2434 case 5: /* DECSCNM: reverse video */
2436 * Toggle reverse video. If we receive an OFF within the
2437 * visual bell timeout period after an ON, we trigger an
2438 * effective visual bell, so that ESC[?5hESC[?5l will
2439 * always be an actually _visible_ visual bell.
2441 if (term
->rvideo
&& !state
) {
2442 /* This is an OFF, so set up a vbell */
2443 term_schedule_vbell(term
, TRUE
, term
->rvbell_startpoint
);
2444 } else if (!term
->rvideo
&& state
) {
2445 /* This is an ON, so we notice the time and save it. */
2446 term
->rvbell_startpoint
= GETTICKCOUNT();
2448 term
->rvideo
= state
;
2449 seen_disp_event(term
);
2451 case 6: /* DECOM: DEC origin mode */
2452 term
->dec_om
= state
;
2454 case 7: /* DECAWM: auto wrap */
2457 case 8: /* DECARM: auto key repeat */
2458 term
->repeat_off
= !state
;
2460 case 10: /* DECEDM: set local edit mode */
2461 term
->term_editing
= state
;
2462 if (term
->ldisc
) /* cause ldisc to notice changes */
2463 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2465 case 25: /* DECTCEM: enable/disable cursor */
2466 compatibility2(OTHER
, VT220
);
2467 term
->cursor_on
= state
;
2468 seen_disp_event(term
);
2470 case 47: /* alternate screen */
2471 compatibility(OTHER
);
2473 swap_screen(term
, term
->no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2476 case 1000: /* xterm mouse 1 (normal) */
2477 term
->xterm_mouse
= state ?
1 : 0;
2478 set_raw_mouse_mode(term
->frontend
, state
);
2480 case 1002: /* xterm mouse 2 (inc. button drags) */
2481 term
->xterm_mouse
= state ?
2 : 0;
2482 set_raw_mouse_mode(term
->frontend
, state
);
2484 case 1047: /* alternate screen */
2485 compatibility(OTHER
);
2487 swap_screen(term
, term
->no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2490 case 1048: /* save/restore cursor */
2491 if (!term
->no_alt_screen
)
2492 save_cursor(term
, state
);
2493 if (!state
) seen_disp_event(term
);
2495 case 1049: /* cursor & alternate screen */
2496 if (state
&& !term
->no_alt_screen
)
2497 save_cursor(term
, state
);
2498 if (!state
) seen_disp_event(term
);
2499 compatibility(OTHER
);
2501 swap_screen(term
, term
->no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2502 if (!state
&& !term
->no_alt_screen
)
2503 save_cursor(term
, state
);
2508 case 4: /* IRM: set insert mode */
2509 compatibility(VT102
);
2510 term
->insert
= state
;
2512 case 12: /* SRM: set echo mode */
2513 term
->term_echoing
= !state
;
2514 if (term
->ldisc
) /* cause ldisc to notice changes */
2515 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2517 case 20: /* LNM: Return sends ... */
2518 term
->cr_lf_return
= state
;
2520 case 34: /* WYULCURM: Make cursor BIG */
2521 compatibility2(OTHER
, VT220
);
2522 term
->big_cursor
= !state
;
2527 * Process an OSC sequence: set window title or icon name.
2529 static void do_osc(Terminal
*term
)
2532 while (term
->osc_strlen
--)
2533 term
->wordness
[(unsigned char)
2534 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2536 term
->osc_string
[term
->osc_strlen
] = '\0';
2537 switch (term
->esc_args
[0]) {
2540 if (!term
->no_remote_wintitle
)
2541 set_icon(term
->frontend
, term
->osc_string
);
2542 if (term
->esc_args
[0] == 1)
2544 /* fall through: parameter 0 means set both */
2547 if (!term
->no_remote_wintitle
)
2548 set_title(term
->frontend
, term
->osc_string
);
2555 * ANSI printing routines.
2557 static void term_print_setup(Terminal
*term
, char *printer
)
2559 bufchain_clear(&term
->printer_buf
);
2560 term
->print_job
= printer_start_job(printer
);
2562 static void term_print_flush(Terminal
*term
)
2567 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2568 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2571 printer_job_data(term
->print_job
, data
, len
);
2572 bufchain_consume(&term
->printer_buf
, len
);
2575 static void term_print_finish(Terminal
*term
)
2581 if (!term
->printing
&& !term
->only_printing
)
2582 return; /* we need do nothing */
2584 term_print_flush(term
);
2585 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2586 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2588 if (c
== '\033' || c
== '\233') {
2589 bufchain_consume(&term
->printer_buf
, size
);
2592 printer_job_data(term
->print_job
, &c
, 1);
2593 bufchain_consume(&term
->printer_buf
, 1);
2596 printer_finish_job(term
->print_job
);
2597 term
->print_job
= NULL
;
2598 term
->printing
= term
->only_printing
= FALSE
;
2602 * Remove everything currently in `inbuf' and stick it up on the
2603 * in-memory display. There's a big state machine in here to
2604 * process escape sequences...
2606 static void term_out(Terminal
*term
)
2610 unsigned char localbuf
[256], *chars
;
2615 chars
= NULL
; /* placate compiler warnings */
2616 while (nchars
> 0 || unget
!= -1 || bufchain_size(&term
->inbuf
) > 0) {
2620 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2621 if (nchars
> sizeof(localbuf
))
2622 nchars
= sizeof(localbuf
);
2623 memcpy(localbuf
, ret
, nchars
);
2624 bufchain_consume(&term
->inbuf
, nchars
);
2626 assert(chars
!= NULL
);
2632 * Optionally log the session traffic to a file. Useful for
2633 * debugging and possibly also useful for actual logging.
2635 if (term
->logtype
== LGTYP_DEBUG
&& term
->logctx
)
2636 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2642 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2643 * be able to display 8-bit characters, but I'll let that go 'cause
2648 * If we're printing, add the character to the printer
2651 if (term
->printing
) {
2652 bufchain_add(&term
->printer_buf
, &c
, 1);
2655 * If we're in print-only mode, we use a much simpler
2656 * state machine designed only to recognise the ESC[4i
2657 * termination sequence.
2659 if (term
->only_printing
) {
2661 term
->print_state
= 1;
2662 else if (c
== (unsigned char)'\233')
2663 term
->print_state
= 2;
2664 else if (c
== '[' && term
->print_state
== 1)
2665 term
->print_state
= 2;
2666 else if (c
== '4' && term
->print_state
== 2)
2667 term
->print_state
= 3;
2668 else if (c
== 'i' && term
->print_state
== 3)
2669 term
->print_state
= 4;
2671 term
->print_state
= 0;
2672 if (term
->print_state
== 4) {
2673 term_print_finish(term
);
2679 /* First see about all those translations. */
2680 if (term
->termstate
== TOPLEVEL
) {
2682 switch (term
->utf_state
) {
2685 /* UTF-8 must be stateless so we ignore iso2022. */
2686 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2687 c
= term
->ucsdata
->unitab_ctrl
[c
];
2688 else c
= ((unsigned char)c
) | CSET_ASCII
;
2690 } else if ((c
& 0xe0) == 0xc0) {
2691 term
->utf_size
= term
->utf_state
= 1;
2692 term
->utf_char
= (c
& 0x1f);
2693 } else if ((c
& 0xf0) == 0xe0) {
2694 term
->utf_size
= term
->utf_state
= 2;
2695 term
->utf_char
= (c
& 0x0f);
2696 } else if ((c
& 0xf8) == 0xf0) {
2697 term
->utf_size
= term
->utf_state
= 3;
2698 term
->utf_char
= (c
& 0x07);
2699 } else if ((c
& 0xfc) == 0xf8) {
2700 term
->utf_size
= term
->utf_state
= 4;
2701 term
->utf_char
= (c
& 0x03);
2702 } else if ((c
& 0xfe) == 0xfc) {
2703 term
->utf_size
= term
->utf_state
= 5;
2704 term
->utf_char
= (c
& 0x01);
2715 if ((c
& 0xC0) != 0x80) {
2718 term
->utf_state
= 0;
2721 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2722 if (--term
->utf_state
)
2727 /* Is somebody trying to be evil! */
2729 (c
< 0x800 && term
->utf_size
>= 2) ||
2730 (c
< 0x10000 && term
->utf_size
>= 3) ||
2731 (c
< 0x200000 && term
->utf_size
>= 4) ||
2732 (c
< 0x4000000 && term
->utf_size
>= 5))
2735 /* Unicode line separator and paragraph separator are CR-LF */
2736 if (c
== 0x2028 || c
== 0x2029)
2739 /* High controls are probably a Baaad idea too. */
2743 /* The UTF-16 surrogates are not nice either. */
2744 /* The standard give the option of decoding these:
2745 * I don't want to! */
2746 if (c
>= 0xD800 && c
< 0xE000)
2749 /* ISO 10646 characters now limited to UTF-16 range. */
2753 /* This is currently a TagPhobic application.. */
2754 if (c
>= 0xE0000 && c
<= 0xE007F)
2757 /* U+FEFF is best seen as a null. */
2760 /* But U+FFFE is an error. */
2761 if (c
== 0xFFFE || c
== 0xFFFF)
2766 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2767 else if(term
->sco_acs
&&
2768 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2770 if (term
->sco_acs
== 2) c
|= 0x80;
2773 switch (term
->cset_attr
[term
->cset
]) {
2775 * Linedraw characters are different from 'ESC ( B'
2776 * only for a small range. For ones outside that
2777 * range, make sure we use the same font as well as
2778 * the same encoding.
2781 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2782 c
= term
->ucsdata
->unitab_ctrl
[c
];
2784 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2788 /* If UK-ASCII, make the '#' a LineDraw Pound */
2790 c
= '}' | CSET_LINEDRW
;
2793 /*FALLTHROUGH*/ case CSET_ASCII
:
2794 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2795 c
= term
->ucsdata
->unitab_ctrl
[c
];
2797 c
= ((unsigned char) c
) | CSET_ASCII
;
2800 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2807 * How about C1 controls?
2808 * Explicitly ignore SCI (0x9a), which we don't translate to DECID.
2810 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2811 !term
->vt52_mode
&& has_compat(VT220
)) {
2815 term
->termstate
= SEEN_ESC
;
2816 term
->esc_query
= FALSE
;
2817 c
= '@' + (c
& 0x1F);
2821 /* Or the GL control. */
2822 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2823 if (term
->curs
.x
&& !term
->wrapnext
)
2825 term
->wrapnext
= FALSE
;
2826 /* destructive backspace might be disabled */
2827 if (!term
->no_dbackspace
) {
2828 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2829 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2830 copy_termchar(scrlineptr(term
->curs
.y
),
2831 term
->curs
.x
, &term
->erase_char
);
2834 /* Or normal C0 controls. */
2835 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2837 case '\005': /* ENQ: terminal type query */
2839 * Strictly speaking this is VT100 but a VT100 defaults to
2840 * no response. Other terminals respond at their option.
2842 * Don't put a CR in the default string as this tends to
2843 * upset some weird software.
2845 compatibility(ANSIMIN
);
2847 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2848 term
->answerback
, term
->answerbacklen
, 0);
2851 case '\007': /* BEL: Bell */
2853 struct beeptime
*newbeep
;
2854 unsigned long ticks
;
2856 ticks
= GETTICKCOUNT();
2858 if (!term
->beep_overloaded
) {
2859 newbeep
= snew(struct beeptime
);
2860 newbeep
->ticks
= ticks
;
2861 newbeep
->next
= NULL
;
2862 if (!term
->beephead
)
2863 term
->beephead
= newbeep
;
2865 term
->beeptail
->next
= newbeep
;
2866 term
->beeptail
= newbeep
;
2871 * Throw out any beeps that happened more than
2874 while (term
->beephead
&&
2875 term
->beephead
->ticks
< ticks
- term
->bellovl_t
) {
2876 struct beeptime
*tmp
= term
->beephead
;
2877 term
->beephead
= tmp
->next
;
2879 if (!term
->beephead
)
2880 term
->beeptail
= NULL
;
2884 if (term
->bellovl
&& term
->beep_overloaded
&&
2885 ticks
- term
->lastbeep
>= (unsigned)term
->bellovl_s
) {
2887 * If we're currently overloaded and the
2888 * last beep was more than s seconds ago,
2889 * leave overload mode.
2891 term
->beep_overloaded
= FALSE
;
2892 } else if (term
->bellovl
&& !term
->beep_overloaded
&&
2893 term
->nbeeps
>= term
->bellovl_n
) {
2895 * Now, if we have n or more beeps
2896 * remaining in the queue, go into overload
2899 term
->beep_overloaded
= TRUE
;
2901 term
->lastbeep
= ticks
;
2904 * Perform an actual beep if we're not overloaded.
2906 if (!term
->bellovl
|| !term
->beep_overloaded
) {
2907 do_beep(term
->frontend
, term
->beep
);
2909 if (term
->beep
== BELL_VISUAL
) {
2910 term_schedule_vbell(term
, FALSE
, 0);
2913 seen_disp_event(term
);
2916 case '\b': /* BS: Back space */
2917 if (term
->curs
.x
== 0 &&
2918 (term
->curs
.y
== 0 || term
->wrap
== 0))
2920 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2921 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2922 else if (term
->wrapnext
)
2923 term
->wrapnext
= FALSE
;
2926 seen_disp_event(term
);
2928 case '\016': /* LS1: Locking-shift one */
2929 compatibility(VT100
);
2932 case '\017': /* LS0: Locking-shift zero */
2933 compatibility(VT100
);
2936 case '\033': /* ESC: Escape */
2937 if (term
->vt52_mode
)
2938 term
->termstate
= VT52_ESC
;
2940 compatibility(ANSIMIN
);
2941 term
->termstate
= SEEN_ESC
;
2942 term
->esc_query
= FALSE
;
2945 case '\015': /* CR: Carriage return */
2947 term
->wrapnext
= FALSE
;
2948 seen_disp_event(term
);
2949 term
->paste_hold
= 0;
2951 if (term
->crhaslf
) {
2952 if (term
->curs
.y
== term
->marg_b
)
2953 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2954 else if (term
->curs
.y
< term
->rows
- 1)
2958 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2960 case '\014': /* FF: Form feed */
2961 if (has_compat(SCOANSI
)) {
2962 move(term
, 0, 0, 0);
2963 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2965 term
->wrapnext
= FALSE
;
2966 seen_disp_event(term
);
2969 case '\013': /* VT: Line tabulation */
2970 compatibility(VT100
);
2971 case '\012': /* LF: Line feed */
2972 if (term
->curs
.y
== term
->marg_b
)
2973 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2974 else if (term
->curs
.y
< term
->rows
- 1)
2978 term
->wrapnext
= FALSE
;
2979 seen_disp_event(term
);
2980 term
->paste_hold
= 0;
2982 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2984 case '\t': /* HT: Character tabulation */
2986 pos old_curs
= term
->curs
;
2987 termline
*ldata
= scrlineptr(term
->curs
.y
);
2991 } while (term
->curs
.x
< term
->cols
- 1 &&
2992 !term
->tabs
[term
->curs
.x
]);
2994 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2995 if (term
->curs
.x
>= term
->cols
/ 2)
2996 term
->curs
.x
= term
->cols
/ 2 - 1;
2998 if (term
->curs
.x
>= term
->cols
)
2999 term
->curs
.x
= term
->cols
- 1;
3002 check_selection(term
, old_curs
, term
->curs
);
3004 seen_disp_event(term
);
3008 switch (term
->termstate
) {
3010 /* Only graphic characters get this far;
3011 * ctrls are stripped above */
3013 termline
*cline
= scrlineptr(term
->curs
.y
);
3018 width
= (term
->cjk_ambig_wide ?
3019 mk_wcwidth_cjk((wchar_t) c
) :
3020 mk_wcwidth((wchar_t) c
));
3022 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
3023 cline
->lattr
|= LATTR_WRAPPED
;
3024 if (term
->curs
.y
== term
->marg_b
)
3025 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3026 else if (term
->curs
.y
< term
->rows
- 1)
3029 term
->wrapnext
= FALSE
;
3030 cline
= scrlineptr(term
->curs
.y
);
3032 if (term
->insert
&& width
> 0)
3034 if (term
->selstate
!= NO_SELECTION
) {
3035 pos cursplus
= term
->curs
;
3037 check_selection(term
, term
->curs
, cursplus
);
3039 if (((c
& CSET_MASK
) == CSET_ASCII
||
3040 (c
& CSET_MASK
) == 0) &&
3042 logtraffic(term
->logctx
, (unsigned char) c
,
3048 * If we're about to display a double-width
3049 * character starting in the rightmost
3050 * column, then we do something special
3051 * instead. We must print a space in the
3052 * last column of the screen, then wrap;
3053 * and we also set LATTR_WRAPPED2 which
3054 * instructs subsequent cut-and-pasting not
3055 * only to splice this line to the one
3056 * after it, but to ignore the space in the
3057 * last character position as well.
3058 * (Because what was actually output to the
3059 * terminal was presumably just a sequence
3060 * of CJK characters, and we don't want a
3061 * space to be pasted in the middle of
3062 * those just because they had the
3063 * misfortune to start in the wrong parity
3064 * column. xterm concurs.)
3066 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3067 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
3068 if (term
->curs
.x
== term
->cols
-1) {
3069 copy_termchar(cline
, term
->curs
.x
,
3071 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
3072 if (term
->curs
.y
== term
->marg_b
)
3073 scroll(term
, term
->marg_t
, term
->marg_b
,
3075 else if (term
->curs
.y
< term
->rows
- 1)
3078 cline
= scrlineptr(term
->curs
.y
);
3079 /* Now we must check_boundary again, of course. */
3080 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3081 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
3085 clear_cc(cline
, term
->curs
.x
);
3086 cline
->chars
[term
->curs
.x
].chr
= c
;
3087 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
3092 clear_cc(cline
, term
->curs
.x
);
3093 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
3094 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
3098 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3099 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
3102 clear_cc(cline
, term
->curs
.x
);
3103 cline
->chars
[term
->curs
.x
].chr
= c
;
3104 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
3108 if (term
->curs
.x
> 0) {
3109 int x
= term
->curs
.x
- 1;
3111 /* If we're in wrapnext state, the character
3112 * to combine with is _here_, not to our left. */
3117 * If the previous character is
3118 * UCSWIDE, back up another one.
3120 if (cline
->chars
[x
].chr
== UCSWIDE
) {
3125 add_cc(cline
, x
, c
);
3126 seen_disp_event(term
);
3133 if (term
->curs
.x
== term
->cols
) {
3135 term
->wrapnext
= TRUE
;
3136 if (term
->wrap
&& term
->vt52_mode
) {
3137 cline
->lattr
|= LATTR_WRAPPED
;
3138 if (term
->curs
.y
== term
->marg_b
)
3139 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3140 else if (term
->curs
.y
< term
->rows
- 1)
3143 term
->wrapnext
= FALSE
;
3146 seen_disp_event(term
);
3152 * This state is virtually identical to SEEN_ESC, with the
3153 * exception that we have an OSC sequence in the pipeline,
3154 * and _if_ we see a backslash, we process it.
3158 term
->termstate
= TOPLEVEL
;
3161 /* else fall through */
3163 if (c
>= ' ' && c
<= '/') {
3164 if (term
->esc_query
)
3165 term
->esc_query
= -1;
3167 term
->esc_query
= c
;
3170 term
->termstate
= TOPLEVEL
;
3171 switch (ANSI(c
, term
->esc_query
)) {
3172 case '[': /* enter CSI mode */
3173 term
->termstate
= SEEN_CSI
;
3174 term
->esc_nargs
= 1;
3175 term
->esc_args
[0] = ARG_DEFAULT
;
3176 term
->esc_query
= FALSE
;
3178 case ']': /* OSC: xterm escape sequences */
3179 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
3180 compatibility(OTHER
);
3181 term
->termstate
= SEEN_OSC
;
3182 term
->esc_args
[0] = 0;
3184 case '7': /* DECSC: save cursor */
3185 compatibility(VT100
);
3186 save_cursor(term
, TRUE
);
3188 case '8': /* DECRC: restore cursor */
3189 compatibility(VT100
);
3190 save_cursor(term
, FALSE
);
3191 seen_disp_event(term
);
3193 case '=': /* DECKPAM: Keypad application mode */
3194 compatibility(VT100
);
3195 term
->app_keypad_keys
= TRUE
;
3197 case '>': /* DECKPNM: Keypad numeric mode */
3198 compatibility(VT100
);
3199 term
->app_keypad_keys
= FALSE
;
3201 case 'D': /* IND: exactly equivalent to LF */
3202 compatibility(VT100
);
3203 if (term
->curs
.y
== term
->marg_b
)
3204 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3205 else if (term
->curs
.y
< term
->rows
- 1)
3207 term
->wrapnext
= FALSE
;
3208 seen_disp_event(term
);
3210 case 'E': /* NEL: exactly equivalent to CR-LF */
3211 compatibility(VT100
);
3213 if (term
->curs
.y
== term
->marg_b
)
3214 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3215 else if (term
->curs
.y
< term
->rows
- 1)
3217 term
->wrapnext
= FALSE
;
3218 seen_disp_event(term
);
3220 case 'M': /* RI: reverse index - backwards LF */
3221 compatibility(VT100
);
3222 if (term
->curs
.y
== term
->marg_t
)
3223 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
3224 else if (term
->curs
.y
> 0)
3226 term
->wrapnext
= FALSE
;
3227 seen_disp_event(term
);
3229 case 'Z': /* DECID: terminal type query */
3230 compatibility(VT100
);
3232 ldisc_send(term
->ldisc
, term
->id_string
,
3233 strlen(term
->id_string
), 0);
3235 case 'c': /* RIS: restore power-on settings */
3236 compatibility(VT100
);
3237 power_on(term
, TRUE
);
3238 if (term
->ldisc
) /* cause ldisc to notice changes */
3239 ldisc_send(term
->ldisc
, NULL
, 0, 0);
3240 if (term
->reset_132
) {
3241 if (!term
->no_remote_resize
)
3242 request_resize(term
->frontend
, 80, term
->rows
);
3243 term
->reset_132
= 0;
3246 seen_disp_event(term
);
3248 case 'H': /* HTS: set a tab */
3249 compatibility(VT100
);
3250 term
->tabs
[term
->curs
.x
] = TRUE
;
3253 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
3254 compatibility(VT100
);
3260 for (i
= 0; i
< term
->rows
; i
++) {
3261 ldata
= scrlineptr(i
);
3262 for (j
= 0; j
< term
->cols
; j
++) {
3263 copy_termchar(ldata
, j
,
3264 &term
->basic_erase_char
);
3265 ldata
->chars
[j
].chr
= 'E';
3267 ldata
->lattr
= LATTR_NORM
;
3270 seen_disp_event(term
);
3271 scrtop
.x
= scrtop
.y
= 0;
3273 scrbot
.y
= term
->rows
;
3274 check_selection(term
, scrtop
, scrbot
);
3278 case ANSI('3', '#'):
3279 case ANSI('4', '#'):
3280 case ANSI('5', '#'):
3281 case ANSI('6', '#'):
3282 compatibility(VT100
);
3286 switch (ANSI(c
, term
->esc_query
)) {
3287 case ANSI('3', '#'): /* DECDHL: 2*height, top */
3290 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
3293 case ANSI('5', '#'): /* DECSWL: normal */
3294 nlattr
= LATTR_NORM
;
3296 default: /* case ANSI('6', '#'): DECDWL: 2*width */
3297 nlattr
= LATTR_WIDE
;
3300 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
3303 /* GZD4: G0 designate 94-set */
3304 case ANSI('A', '('):
3305 compatibility(VT100
);
3306 if (!term
->no_remote_charset
)
3307 term
->cset_attr
[0] = CSET_GBCHR
;
3309 case ANSI('B', '('):
3310 compatibility(VT100
);
3311 if (!term
->no_remote_charset
)
3312 term
->cset_attr
[0] = CSET_ASCII
;
3314 case ANSI('0', '('):
3315 compatibility(VT100
);
3316 if (!term
->no_remote_charset
)
3317 term
->cset_attr
[0] = CSET_LINEDRW
;
3319 case ANSI('U', '('):
3320 compatibility(OTHER
);
3321 if (!term
->no_remote_charset
)
3322 term
->cset_attr
[0] = CSET_SCOACS
;
3324 /* G1D4: G1-designate 94-set */
3325 case ANSI('A', ')'):
3326 compatibility(VT100
);
3327 if (!term
->no_remote_charset
)
3328 term
->cset_attr
[1] = CSET_GBCHR
;
3330 case ANSI('B', ')'):
3331 compatibility(VT100
);
3332 if (!term
->no_remote_charset
)
3333 term
->cset_attr
[1] = CSET_ASCII
;
3335 case ANSI('0', ')'):
3336 compatibility(VT100
);
3337 if (!term
->no_remote_charset
)
3338 term
->cset_attr
[1] = CSET_LINEDRW
;
3340 case ANSI('U', ')'):
3341 compatibility(OTHER
);
3342 if (!term
->no_remote_charset
)
3343 term
->cset_attr
[1] = CSET_SCOACS
;
3345 /* DOCS: Designate other coding system */
3346 case ANSI('8', '%'): /* Old Linux code */
3347 case ANSI('G', '%'):
3348 compatibility(OTHER
);
3349 if (!term
->no_remote_charset
)
3352 case ANSI('@', '%'):
3353 compatibility(OTHER
);
3354 if (!term
->no_remote_charset
)
3360 term
->termstate
= TOPLEVEL
; /* default */
3362 if (term
->esc_nargs
<= ARGS_MAX
) {
3363 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3364 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3365 term
->esc_args
[term
->esc_nargs
- 1] =
3366 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3368 term
->termstate
= SEEN_CSI
;
3369 } else if (c
== ';') {
3370 if (term
->esc_nargs
< ARGS_MAX
)
3371 term
->esc_args
[term
->esc_nargs
++] = ARG_DEFAULT
;
3372 term
->termstate
= SEEN_CSI
;
3373 } else if (c
< '@') {
3374 if (term
->esc_query
)
3375 term
->esc_query
= -1;
3377 term
->esc_query
= TRUE
;
3379 term
->esc_query
= c
;
3380 term
->termstate
= SEEN_CSI
;
3382 switch (ANSI(c
, term
->esc_query
)) {
3383 case 'A': /* CUU: move up N lines */
3384 move(term
, term
->curs
.x
,
3385 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3386 seen_disp_event(term
);
3388 case 'e': /* VPR: move down N lines */
3389 compatibility(ANSI
);
3391 case 'B': /* CUD: Cursor down */
3392 move(term
, term
->curs
.x
,
3393 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3394 seen_disp_event(term
);
3396 case ANSI('c', '>'): /* DA: report xterm version */
3397 compatibility(OTHER
);
3398 /* this reports xterm version 136 so that VIM can
3399 use the drag messages from the mouse reporting */
3401 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3403 case 'a': /* HPR: move right N cols */
3404 compatibility(ANSI
);
3406 case 'C': /* CUF: Cursor right */
3407 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3409 seen_disp_event(term
);
3411 case 'D': /* CUB: move left N cols */
3412 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3414 seen_disp_event(term
);
3416 case 'E': /* CNL: move down N lines and CR */
3417 compatibility(ANSI
);
3419 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3420 seen_disp_event(term
);
3422 case 'F': /* CPL: move up N lines and CR */
3423 compatibility(ANSI
);
3425 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3426 seen_disp_event(term
);
3429 case '`': /* HPA: set horizontal posn */
3430 compatibility(ANSI
);
3431 move(term
, def(term
->esc_args
[0], 1) - 1,
3433 seen_disp_event(term
);
3435 case 'd': /* VPA: set vertical posn */
3436 compatibility(ANSI
);
3437 move(term
, term
->curs
.x
,
3438 ((term
->dec_om ? term
->marg_t
: 0) +
3439 def(term
->esc_args
[0], 1) - 1),
3440 (term
->dec_om ?
2 : 0));
3441 seen_disp_event(term
);
3444 case 'f': /* HVP: set horz and vert posns at once */
3445 if (term
->esc_nargs
< 2)
3446 term
->esc_args
[1] = ARG_DEFAULT
;
3447 move(term
, def(term
->esc_args
[1], 1) - 1,
3448 ((term
->dec_om ? term
->marg_t
: 0) +
3449 def(term
->esc_args
[0], 1) - 1),
3450 (term
->dec_om ?
2 : 0));
3451 seen_disp_event(term
);
3453 case 'J': /* ED: erase screen or parts of it */
3455 unsigned int i
= def(term
->esc_args
[0], 0);
3457 /* Erase Saved Lines (xterm)
3458 * This follows Thomas Dickey's xterm. */
3464 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3468 seen_disp_event(term
);
3470 case 'K': /* EL: erase line or parts of it */
3472 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3475 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3477 seen_disp_event(term
);
3479 case 'L': /* IL: insert lines */
3480 compatibility(VT102
);
3481 if (term
->curs
.y
<= term
->marg_b
)
3482 scroll(term
, term
->curs
.y
, term
->marg_b
,
3483 -def(term
->esc_args
[0], 1), FALSE
);
3484 seen_disp_event(term
);
3486 case 'M': /* DL: delete lines */
3487 compatibility(VT102
);
3488 if (term
->curs
.y
<= term
->marg_b
)
3489 scroll(term
, term
->curs
.y
, term
->marg_b
,
3490 def(term
->esc_args
[0], 1),
3492 seen_disp_event(term
);
3494 case '@': /* ICH: insert chars */
3495 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3496 compatibility(VT102
);
3497 insch(term
, def(term
->esc_args
[0], 1));
3498 seen_disp_event(term
);
3500 case 'P': /* DCH: delete chars */
3501 compatibility(VT102
);
3502 insch(term
, -def(term
->esc_args
[0], 1));
3503 seen_disp_event(term
);
3505 case 'c': /* DA: terminal type query */
3506 compatibility(VT100
);
3507 /* This is the response for a VT102 */
3509 ldisc_send(term
->ldisc
, term
->id_string
,
3510 strlen(term
->id_string
), 0);
3512 case 'n': /* DSR: cursor position query */
3514 if (term
->esc_args
[0] == 6) {
3516 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3518 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3519 } else if (term
->esc_args
[0] == 5) {
3520 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3524 case 'h': /* SM: toggle modes to high */
3526 compatibility(VT100
);
3529 for (i
= 0; i
< term
->esc_nargs
; i
++)
3530 toggle_mode(term
, term
->esc_args
[i
],
3531 term
->esc_query
, TRUE
);
3534 case 'i': /* MC: Media copy */
3536 compatibility(VT100
);
3539 if (term
->esc_nargs
!= 1) break;
3540 if (term
->esc_args
[0] == 5 &&
3541 (printer
= conf_get_str(term
->conf
,
3542 CONF_printer
))[0]) {
3543 term
->printing
= TRUE
;
3544 term
->only_printing
= !term
->esc_query
;
3545 term
->print_state
= 0;
3546 term_print_setup(term
, printer
);
3547 } else if (term
->esc_args
[0] == 4 &&
3549 term_print_finish(term
);
3553 case 'l': /* RM: toggle modes to low */
3555 compatibility(VT100
);
3558 for (i
= 0; i
< term
->esc_nargs
; i
++)
3559 toggle_mode(term
, term
->esc_args
[i
],
3560 term
->esc_query
, FALSE
);
3563 case 'g': /* TBC: clear tabs */
3564 compatibility(VT100
);
3565 if (term
->esc_nargs
== 1) {
3566 if (term
->esc_args
[0] == 0) {
3567 term
->tabs
[term
->curs
.x
] = FALSE
;
3568 } else if (term
->esc_args
[0] == 3) {
3570 for (i
= 0; i
< term
->cols
; i
++)
3571 term
->tabs
[i
] = FALSE
;
3575 case 'r': /* DECSTBM: set scroll margins */
3576 compatibility(VT100
);
3577 if (term
->esc_nargs
<= 2) {
3579 top
= def(term
->esc_args
[0], 1) - 1;
3580 bot
= (term
->esc_nargs
<= 1
3581 || term
->esc_args
[1] == 0 ?
3583 def(term
->esc_args
[1], term
->rows
)) - 1;
3584 if (bot
>= term
->rows
)
3585 bot
= term
->rows
- 1;
3586 /* VTTEST Bug 9 - if region is less than 2 lines
3587 * don't change region.
3589 if (bot
- top
> 0) {
3594 * I used to think the cursor should be
3595 * placed at the top of the newly marginned
3596 * area. Apparently not: VMS TPU falls over
3599 * Well actually it should for
3602 term
->curs
.y
= (term
->dec_om ?
3604 seen_disp_event(term
);
3608 case 'm': /* SGR: set graphics rendition */
3611 * A VT100 without the AVO only had one
3612 * attribute, either underline or
3613 * reverse video depending on the
3614 * cursor type, this was selected by
3618 * This is sometimes DIM, eg on the
3621 * This is sometimes INVIS various ANSI.
3623 * This like 22 disables BOLD, DIM and INVIS
3625 * The ANSI colours appear on any
3626 * terminal that has colour (obviously)
3627 * but the interaction between sgr0 and
3628 * the colours varies but is usually
3629 * related to the background colour
3630 * erase item. The interaction between
3631 * colour attributes and the mono ones
3632 * is also very implementation
3635 * The 39 and 49 attributes are likely
3636 * to be unimplemented.
3639 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3640 switch (def(term
->esc_args
[i
], 0)) {
3641 case 0: /* restore defaults */
3642 term
->curr_attr
= term
->default_attr
;
3644 case 1: /* enable bold */
3645 compatibility(VT100AVO
);
3646 term
->curr_attr
|= ATTR_BOLD
;
3648 case 21: /* (enable double underline) */
3649 compatibility(OTHER
);
3650 case 4: /* enable underline */
3651 compatibility(VT100AVO
);
3652 term
->curr_attr
|= ATTR_UNDER
;
3654 case 5: /* enable blink */
3655 compatibility(VT100AVO
);
3656 term
->curr_attr
|= ATTR_BLINK
;
3658 case 6: /* SCO light bkgrd */
3659 compatibility(SCOANSI
);
3660 term
->blink_is_real
= FALSE
;
3661 term
->curr_attr
|= ATTR_BLINK
;
3662 term_schedule_tblink(term
);
3664 case 7: /* enable reverse video */
3665 term
->curr_attr
|= ATTR_REVERSE
;
3667 case 10: /* SCO acs off */
3668 compatibility(SCOANSI
);
3669 if (term
->no_remote_charset
) break;
3670 term
->sco_acs
= 0; break;
3671 case 11: /* SCO acs on */
3672 compatibility(SCOANSI
);
3673 if (term
->no_remote_charset
) break;
3674 term
->sco_acs
= 1; break;
3675 case 12: /* SCO acs on, |0x80 */
3676 compatibility(SCOANSI
);
3677 if (term
->no_remote_charset
) break;
3678 term
->sco_acs
= 2; break;
3679 case 22: /* disable bold */
3680 compatibility2(OTHER
, VT220
);
3681 term
->curr_attr
&= ~ATTR_BOLD
;
3683 case 24: /* disable underline */
3684 compatibility2(OTHER
, VT220
);
3685 term
->curr_attr
&= ~ATTR_UNDER
;
3687 case 25: /* disable blink */
3688 compatibility2(OTHER
, VT220
);
3689 term
->curr_attr
&= ~ATTR_BLINK
;
3691 case 27: /* disable reverse video */
3692 compatibility2(OTHER
, VT220
);
3693 term
->curr_attr
&= ~ATTR_REVERSE
;
3704 term
->curr_attr
&= ~ATTR_FGMASK
;
3706 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3716 /* aixterm-style bright foreground */
3717 term
->curr_attr
&= ~ATTR_FGMASK
;
3719 ((term
->esc_args
[i
] - 90 + 8)
3722 case 39: /* default-foreground */
3723 term
->curr_attr
&= ~ATTR_FGMASK
;
3724 term
->curr_attr
|= ATTR_DEFFG
;
3735 term
->curr_attr
&= ~ATTR_BGMASK
;
3737 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3747 /* aixterm-style bright background */
3748 term
->curr_attr
&= ~ATTR_BGMASK
;
3750 ((term
->esc_args
[i
] - 100 + 8)
3753 case 49: /* default-background */
3754 term
->curr_attr
&= ~ATTR_BGMASK
;
3755 term
->curr_attr
|= ATTR_DEFBG
;
3757 case 38: /* xterm 256-colour mode */
3758 if (i
+2 < term
->esc_nargs
&&
3759 term
->esc_args
[i
+1] == 5) {
3760 term
->curr_attr
&= ~ATTR_FGMASK
;
3762 ((term
->esc_args
[i
+2] & 0xFF)
3767 case 48: /* xterm 256-colour mode */
3768 if (i
+2 < term
->esc_nargs
&&
3769 term
->esc_args
[i
+1] == 5) {
3770 term
->curr_attr
&= ~ATTR_BGMASK
;
3772 ((term
->esc_args
[i
+2] & 0xFF)
3779 set_erase_char(term
);
3782 case 's': /* save cursor */
3783 save_cursor(term
, TRUE
);
3785 case 'u': /* restore cursor */
3786 save_cursor(term
, FALSE
);
3787 seen_disp_event(term
);
3789 case 't': /* DECSLPP: set page size - ie window height */
3791 * VT340/VT420 sequence DECSLPP, DEC only allows values
3792 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3793 * illegal values (eg first arg 1..9) for window changing
3796 if (term
->esc_nargs
<= 1
3797 && (term
->esc_args
[0] < 1 ||
3798 term
->esc_args
[0] >= 24)) {
3799 compatibility(VT340TEXT
);
3800 if (!term
->no_remote_resize
)
3801 request_resize(term
->frontend
, term
->cols
,
3802 def(term
->esc_args
[0], 24));
3804 } else if (term
->esc_nargs
>= 1 &&
3805 term
->esc_args
[0] >= 1 &&
3806 term
->esc_args
[0] < 24) {
3807 compatibility(OTHER
);
3809 switch (term
->esc_args
[0]) {
3813 set_iconic(term
->frontend
, FALSE
);
3816 set_iconic(term
->frontend
, TRUE
);
3819 if (term
->esc_nargs
>= 3) {
3820 if (!term
->no_remote_resize
)
3821 move_window(term
->frontend
,
3822 def(term
->esc_args
[1], 0),
3823 def(term
->esc_args
[2], 0));
3827 /* We should resize the window to a given
3828 * size in pixels here, but currently our
3829 * resizing code isn't healthy enough to
3834 set_zorder(term
->frontend
, TRUE
);
3837 /* move to bottom */
3838 set_zorder(term
->frontend
, FALSE
);
3841 refresh_window(term
->frontend
);
3844 if (term
->esc_nargs
>= 3) {
3845 if (!term
->no_remote_resize
)
3846 request_resize(term
->frontend
,
3847 def(term
->esc_args
[2], term
->conf_width
),
3848 def(term
->esc_args
[1], term
->conf_height
));
3852 if (term
->esc_nargs
>= 2)
3853 set_zoomed(term
->frontend
,
3859 ldisc_send(term
->ldisc
,
3860 is_iconic(term
->frontend
) ?
3861 "\033[2t" : "\033[1t", 4, 0);
3865 get_window_pos(term
->frontend
, &x
, &y
);
3866 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3867 ldisc_send(term
->ldisc
, buf
, len
, 0);
3872 get_window_pixels(term
->frontend
, &x
, &y
);
3873 len
= sprintf(buf
, "\033[4;%d;%dt", y
, x
);
3874 ldisc_send(term
->ldisc
, buf
, len
, 0);
3879 len
= sprintf(buf
, "\033[8;%d;%dt",
3880 term
->rows
, term
->cols
);
3881 ldisc_send(term
->ldisc
, buf
, len
, 0);
3886 * Hmmm. Strictly speaking we
3887 * should return `the size of the
3888 * screen in characters', but
3889 * that's not easy: (a) window
3890 * furniture being what it is it's
3891 * hard to compute, and (b) in
3892 * resize-font mode maximising the
3893 * window wouldn't change the
3894 * number of characters. *shrug*. I
3895 * think we'll ignore it for the
3896 * moment and see if anyone
3897 * complains, and then ask them
3898 * what they would like it to do.
3903 term
->remote_qtitle_action
!= TITLE_NONE
) {
3904 if(term
->remote_qtitle_action
== TITLE_REAL
)
3905 p
= get_window_title(term
->frontend
, TRUE
);
3907 p
= EMPTY_WINDOW_TITLE
;
3909 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3910 ldisc_send(term
->ldisc
, p
, len
, 0);
3911 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3916 term
->remote_qtitle_action
!= TITLE_NONE
) {
3917 if(term
->remote_qtitle_action
== TITLE_REAL
)
3918 p
= get_window_title(term
->frontend
, FALSE
);
3920 p
= EMPTY_WINDOW_TITLE
;
3922 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3923 ldisc_send(term
->ldisc
, p
, len
, 0);
3924 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3930 case 'S': /* SU: Scroll up */
3931 compatibility(SCOANSI
);
3932 scroll(term
, term
->marg_t
, term
->marg_b
,
3933 def(term
->esc_args
[0], 1), TRUE
);
3934 term
->wrapnext
= FALSE
;
3935 seen_disp_event(term
);
3937 case 'T': /* SD: Scroll down */
3938 compatibility(SCOANSI
);
3939 scroll(term
, term
->marg_t
, term
->marg_b
,
3940 -def(term
->esc_args
[0], 1), TRUE
);
3941 term
->wrapnext
= FALSE
;
3942 seen_disp_event(term
);
3944 case ANSI('|', '*'): /* DECSNLS */
3946 * Set number of lines on screen
3947 * VT420 uses VGA like hardware and can
3948 * support any size in reasonable range
3949 * (24..49 AIUI) with no default specified.
3951 compatibility(VT420
);
3952 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3953 if (!term
->no_remote_resize
)
3954 request_resize(term
->frontend
, term
->cols
,
3955 def(term
->esc_args
[0],
3956 term
->conf_height
));
3960 case ANSI('|', '$'): /* DECSCPP */
3962 * Set number of columns per page
3963 * Docs imply range is only 80 or 132, but
3966 compatibility(VT340TEXT
);
3967 if (term
->esc_nargs
<= 1) {
3968 if (!term
->no_remote_resize
)
3969 request_resize(term
->frontend
,
3970 def(term
->esc_args
[0],
3976 case 'X': /* ECH: write N spaces w/o moving cursor */
3977 /* XXX VTTEST says this is vt220, vt510 manual
3979 compatibility(ANSIMIN
);
3981 int n
= def(term
->esc_args
[0], 1);
3983 int p
= term
->curs
.x
;
3984 termline
*cline
= scrlineptr(term
->curs
.y
);
3986 if (n
> term
->cols
- term
->curs
.x
)
3987 n
= term
->cols
- term
->curs
.x
;
3988 cursplus
= term
->curs
;
3990 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3991 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3992 check_selection(term
, term
->curs
, cursplus
);
3994 copy_termchar(cline
, p
++,
3996 seen_disp_event(term
);
3999 case 'x': /* DECREQTPARM: report terminal characteristics */
4000 compatibility(VT100
);
4003 int i
= def(term
->esc_args
[0], 0);
4004 if (i
== 0 || i
== 1) {
4005 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
4007 ldisc_send(term
->ldisc
, buf
, 20, 0);
4012 compatibility(OTHER
);
4014 int i
= def(term
->esc_args
[0], 1);
4015 pos old_curs
= term
->curs
;
4017 for(;i
>0 && term
->curs
.x
>0; i
--) {
4020 } while (term
->curs
.x
>0 &&
4021 !term
->tabs
[term
->curs
.x
]);
4023 check_selection(term
, old_curs
, term
->curs
);
4026 case ANSI('c', '='): /* Hide or Show Cursor */
4027 compatibility(SCOANSI
);
4028 switch(term
->esc_args
[0]) {
4029 case 0: /* hide cursor */
4030 term
->cursor_on
= FALSE
;
4032 case 1: /* restore cursor */
4033 term
->big_cursor
= FALSE
;
4034 term
->cursor_on
= TRUE
;
4036 case 2: /* block cursor */
4037 term
->big_cursor
= TRUE
;
4038 term
->cursor_on
= TRUE
;
4042 case ANSI('C', '='):
4044 * set cursor start on scanline esc_args[0] and
4045 * end on scanline esc_args[1].If you set
4046 * the bottom scan line to a value less than
4047 * the top scan line, the cursor will disappear.
4049 compatibility(SCOANSI
);
4050 if (term
->esc_nargs
>= 2) {
4051 if (term
->esc_args
[0] > term
->esc_args
[1])
4052 term
->cursor_on
= FALSE
;
4054 term
->cursor_on
= TRUE
;
4057 case ANSI('D', '='):
4058 compatibility(SCOANSI
);
4059 term
->blink_is_real
= FALSE
;
4060 term_schedule_tblink(term
);
4061 if (term
->esc_args
[0]>=1)
4062 term
->curr_attr
|= ATTR_BLINK
;
4064 term
->curr_attr
&= ~ATTR_BLINK
;
4066 case ANSI('E', '='):
4067 compatibility(SCOANSI
);
4068 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
4069 term_schedule_tblink(term
);
4071 case ANSI('F', '='): /* set normal foreground */
4072 compatibility(SCOANSI
);
4073 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
4075 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
4076 (term
->esc_args
[0] & 0x8)) <<
4078 term
->curr_attr
&= ~ATTR_FGMASK
;
4079 term
->curr_attr
|= colour
;
4080 term
->default_attr
&= ~ATTR_FGMASK
;
4081 term
->default_attr
|= colour
;
4082 set_erase_char(term
);
4085 case ANSI('G', '='): /* set normal background */
4086 compatibility(SCOANSI
);
4087 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
4089 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
4090 (term
->esc_args
[0] & 0x8)) <<
4092 term
->curr_attr
&= ~ATTR_BGMASK
;
4093 term
->curr_attr
|= colour
;
4094 term
->default_attr
&= ~ATTR_BGMASK
;
4095 term
->default_attr
|= colour
;
4096 set_erase_char(term
);
4099 case ANSI('L', '='):
4100 compatibility(SCOANSI
);
4101 term
->use_bce
= (term
->esc_args
[0] <= 0);
4102 set_erase_char(term
);
4104 case ANSI('p', '"'): /* DECSCL: set compat level */
4106 * Allow the host to make this emulator a
4107 * 'perfect' VT102. This first appeared in
4108 * the VT220, but we do need to get back to
4109 * PuTTY mode so I won't check it.
4111 * The arg in 40..42,50 are a PuTTY extension.
4112 * The 2nd arg, 8bit vs 7bit is not checked.
4114 * Setting VT102 mode should also change
4115 * the Fkeys to generate PF* codes as a
4116 * real VT102 has no Fkeys. The VT220 does
4117 * this, F11..F13 become ESC,BS,LF other
4118 * Fkeys send nothing.
4120 * Note ESC c will NOT change this!
4123 switch (term
->esc_args
[0]) {
4125 term
->compatibility_level
&= ~TM_VTXXX
;
4126 term
->compatibility_level
|= TM_VT102
;
4129 term
->compatibility_level
&= ~TM_VTXXX
;
4130 term
->compatibility_level
|= TM_VT220
;
4134 if (term
->esc_args
[0] > 60 &&
4135 term
->esc_args
[0] < 70)
4136 term
->compatibility_level
|= TM_VTXXX
;
4140 term
->compatibility_level
&= TM_VTXXX
;
4143 term
->compatibility_level
= TM_PUTTY
;
4146 term
->compatibility_level
= TM_SCOANSI
;
4150 term
->compatibility_level
= TM_PUTTY
;
4156 /* Change the response to CSI c */
4157 if (term
->esc_args
[0] == 50) {
4160 strcpy(term
->id_string
, "\033[?");
4161 for (i
= 1; i
< term
->esc_nargs
; i
++) {
4163 strcat(term
->id_string
, ";");
4164 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
4165 strcat(term
->id_string
, lbuf
);
4167 strcat(term
->id_string
, "c");
4170 /* Is this a good idea ?
4171 * Well we should do a soft reset at this point ...
4173 if (!has_compat(VT420
) && has_compat(VT100
)) {
4174 if (!term
->no_remote_resize
) {
4175 if (term
->reset_132
)
4176 request_resize(132, 24);
4178 request_resize(80, 24);
4186 term
->osc_w
= FALSE
;
4188 case 'P': /* Linux palette sequence */
4189 term
->termstate
= SEEN_OSC_P
;
4190 term
->osc_strlen
= 0;
4192 case 'R': /* Linux palette reset */
4193 palette_reset(term
->frontend
);
4194 term_invalidate(term
);
4195 term
->termstate
= TOPLEVEL
;
4197 case 'W': /* word-set */
4198 term
->termstate
= SEEN_OSC_W
;
4211 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4215 * Grotty hack to support xterm and DECterm title
4216 * sequences concurrently.
4218 if (term
->esc_args
[0] == 2) {
4219 term
->esc_args
[0] = 1;
4222 /* else fall through */
4224 term
->termstate
= OSC_STRING
;
4225 term
->osc_strlen
= 0;
4230 * This OSC stuff is EVIL. It takes just one character to get into
4231 * sysline mode and it's not initially obvious how to get out.
4232 * So I've added CR and LF as string aborts.
4233 * This shouldn't effect compatibility as I believe embedded
4234 * control characters are supposed to be interpreted (maybe?)
4235 * and they don't display anything useful anyway.
4239 if (c
== '\012' || c
== '\015') {
4240 term
->termstate
= TOPLEVEL
;
4241 } else if (c
== 0234 || c
== '\007') {
4243 * These characters terminate the string; ST and BEL
4244 * terminate the sequence and trigger instant
4245 * processing of it, whereas ESC goes back to SEEN_ESC
4246 * mode unless it is followed by \, in which case it is
4247 * synonymous with ST in the first place.
4250 term
->termstate
= TOPLEVEL
;
4251 } else if (c
== '\033')
4252 term
->termstate
= OSC_MAYBE_ST
;
4253 else if (term
->osc_strlen
< OSC_STR_MAX
)
4254 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
4258 int max
= (term
->osc_strlen
== 0 ?
21 : 15);
4260 if ((int)c
>= '0' && (int)c
<= '9')
4262 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
4264 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
4267 term
->termstate
= TOPLEVEL
;
4270 term
->osc_string
[term
->osc_strlen
++] = val
;
4271 if (term
->osc_strlen
>= 7) {
4272 palette_set(term
->frontend
, term
->osc_string
[0],
4273 term
->osc_string
[1] * 16 + term
->osc_string
[2],
4274 term
->osc_string
[3] * 16 + term
->osc_string
[4],
4275 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
4276 term_invalidate(term
);
4277 term
->termstate
= TOPLEVEL
;
4293 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4296 term
->termstate
= OSC_STRING
;
4297 term
->osc_strlen
= 0;
4301 term
->termstate
= TOPLEVEL
;
4302 seen_disp_event(term
);
4305 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
4308 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
4311 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
4314 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
4317 * From the VT100 Manual
4318 * NOTE: The special graphics characters in the VT100
4319 * are different from those in the VT52
4321 * From VT102 manual:
4322 * 137 _ Blank - Same
4323 * 140 ` Reserved - Humm.
4324 * 141 a Solid rectangle - Similar
4325 * 142 b 1/ - Top half of fraction for the
4326 * 143 c 3/ - subscript numbers below.
4329 * 146 f Degrees - Same
4330 * 147 g Plus or minus - Same
4332 * 151 i Ellipsis (dots)
4335 * 154 l Bar at scan 0
4336 * 155 m Bar at scan 1
4337 * 156 n Bar at scan 2
4338 * 157 o Bar at scan 3 - Similar
4339 * 160 p Bar at scan 4 - Similar
4340 * 161 q Bar at scan 5 - Similar
4341 * 162 r Bar at scan 6 - Same
4342 * 163 s Bar at scan 7 - Similar
4357 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
4360 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
4363 move(term
, 0, 0, 0);
4366 if (term
->curs
.y
== 0)
4367 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
4368 else if (term
->curs
.y
> 0)
4370 term
->wrapnext
= FALSE
;
4373 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4377 erase_lots(term
, TRUE
, FALSE
, TRUE
);
4381 /* XXX Print cursor line */
4384 /* XXX Start controller mode */
4387 /* XXX Stop controller mode */
4391 term
->termstate
= VT52_Y1
;
4395 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
4398 term
->app_keypad_keys
= TRUE
;
4401 term
->app_keypad_keys
= FALSE
;
4404 /* XXX This should switch to VT100 mode not current or default
4405 * VT mode. But this will only have effect in a VT220+
4408 term
->vt52_mode
= FALSE
;
4409 term
->blink_is_real
= term
->blinktext
;
4410 term_schedule_tblink(term
);
4414 /* XXX Enter auto print mode */
4417 /* XXX Exit auto print mode */
4420 /* XXX Print screen */
4426 /* compatibility(ATARI) */
4427 move(term
, 0, 0, 0);
4428 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4432 /* compatibility(ATARI) */
4433 if (term
->curs
.y
<= term
->marg_b
)
4434 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4437 /* compatibility(ATARI) */
4438 if (term
->curs
.y
<= term
->marg_b
)
4439 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4442 /* compatibility(ATARI) */
4443 term
->termstate
= VT52_FG
;
4446 /* compatibility(ATARI) */
4447 term
->termstate
= VT52_BG
;
4450 /* compatibility(ATARI) */
4451 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4455 /* compatibility(ATARI) */
4456 term
->cursor_on
= TRUE
;
4459 /* compatibility(ATARI) */
4460 term
->cursor_on
= FALSE
;
4462 /* case 'j': Save cursor position - broken on ST */
4463 /* case 'k': Restore cursor position */
4465 /* compatibility(ATARI) */
4466 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4468 term
->wrapnext
= FALSE
;
4471 /* compatibility(ATARI) */
4472 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4475 /* compatibility(ATARI) */
4476 term
->curr_attr
|= ATTR_REVERSE
;
4479 /* compatibility(ATARI) */
4480 term
->curr_attr
&= ~ATTR_REVERSE
;
4482 case 'v': /* wrap Autowrap on - Wyse style */
4483 /* compatibility(ATARI) */
4486 case 'w': /* Autowrap off */
4487 /* compatibility(ATARI) */
4492 /* compatibility(OTHER) */
4493 term
->vt52_bold
= FALSE
;
4494 term
->curr_attr
= ATTR_DEFAULT
;
4495 set_erase_char(term
);
4498 /* compatibility(VI50) */
4499 term
->curr_attr
|= ATTR_UNDER
;
4502 /* compatibility(VI50) */
4503 term
->curr_attr
&= ~ATTR_UNDER
;
4506 /* compatibility(VI50) */
4507 term
->vt52_bold
= TRUE
;
4508 term
->curr_attr
|= ATTR_BOLD
;
4511 /* compatibility(VI50) */
4512 term
->vt52_bold
= FALSE
;
4513 term
->curr_attr
&= ~ATTR_BOLD
;
4519 term
->termstate
= VT52_Y2
;
4520 move(term
, term
->curs
.x
, c
- ' ', 0);
4523 term
->termstate
= TOPLEVEL
;
4524 move(term
, c
- ' ', term
->curs
.y
, 0);
4529 term
->termstate
= TOPLEVEL
;
4530 term
->curr_attr
&= ~ATTR_FGMASK
;
4531 term
->curr_attr
&= ~ATTR_BOLD
;
4532 term
->curr_attr
|= (c
& 0xF) << ATTR_FGSHIFT
;
4533 set_erase_char(term
);
4536 term
->termstate
= TOPLEVEL
;
4537 term
->curr_attr
&= ~ATTR_BGMASK
;
4538 term
->curr_attr
&= ~ATTR_BLINK
;
4539 term
->curr_attr
|= (c
& 0xF) << ATTR_BGSHIFT
;
4540 set_erase_char(term
);
4543 default: break; /* placate gcc warning about enum use */
4545 if (term
->selstate
!= NO_SELECTION
) {
4546 pos cursplus
= term
->curs
;
4548 check_selection(term
, term
->curs
, cursplus
);
4552 term_print_flush(term
);
4554 logflush(term
->logctx
);
4558 * To prevent having to run the reasonably tricky bidi algorithm
4559 * too many times, we maintain a cache of the last lineful of data
4560 * fed to the algorithm on each line of the display.
4562 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4563 termchar
*lbefore
, int width
)
4567 if (!term
->pre_bidi_cache
)
4568 return FALSE
; /* cache doesn't even exist yet! */
4570 if (line
>= term
->bidi_cache_size
)
4571 return FALSE
; /* cache doesn't have this many lines */
4573 if (!term
->pre_bidi_cache
[line
].chars
)
4574 return FALSE
; /* cache doesn't contain _this_ line */
4576 if (term
->pre_bidi_cache
[line
].width
!= width
)
4577 return FALSE
; /* line is wrong width */
4579 for (i
= 0; i
< width
; i
++)
4580 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4581 return FALSE
; /* line doesn't match cache */
4583 return TRUE
; /* it didn't match. */
4586 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4587 termchar
*lafter
, bidi_char
*wcTo
,
4588 int width
, int size
)
4592 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4593 int j
= term
->bidi_cache_size
;
4594 term
->bidi_cache_size
= line
+1;
4595 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4596 term
->bidi_cache_size
,
4597 struct bidi_cache_entry
);
4598 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4599 term
->bidi_cache_size
,
4600 struct bidi_cache_entry
);
4601 while (j
< term
->bidi_cache_size
) {
4602 term
->pre_bidi_cache
[j
].chars
=
4603 term
->post_bidi_cache
[j
].chars
= NULL
;
4604 term
->pre_bidi_cache
[j
].width
=
4605 term
->post_bidi_cache
[j
].width
= -1;
4606 term
->pre_bidi_cache
[j
].forward
=
4607 term
->post_bidi_cache
[j
].forward
= NULL
;
4608 term
->pre_bidi_cache
[j
].backward
=
4609 term
->post_bidi_cache
[j
].backward
= NULL
;
4614 sfree(term
->pre_bidi_cache
[line
].chars
);
4615 sfree(term
->post_bidi_cache
[line
].chars
);
4616 sfree(term
->post_bidi_cache
[line
].forward
);
4617 sfree(term
->post_bidi_cache
[line
].backward
);
4619 term
->pre_bidi_cache
[line
].width
= width
;
4620 term
->pre_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4621 term
->post_bidi_cache
[line
].width
= width
;
4622 term
->post_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4623 term
->post_bidi_cache
[line
].forward
= snewn(width
, int);
4624 term
->post_bidi_cache
[line
].backward
= snewn(width
, int);
4626 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, size
* TSIZE
);
4627 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, size
* TSIZE
);
4628 memset(term
->post_bidi_cache
[line
].forward
, 0, width
* sizeof(int));
4629 memset(term
->post_bidi_cache
[line
].backward
, 0, width
* sizeof(int));
4631 for (i
= 0; i
< width
; i
++) {
4632 int p
= wcTo
[i
].index
;
4634 assert(0 <= p
&& p
< width
);
4636 term
->post_bidi_cache
[line
].backward
[i
] = p
;
4637 term
->post_bidi_cache
[line
].forward
[p
] = i
;
4642 * Prepare the bidi information for a screen line. Returns the
4643 * transformed list of termchars, or NULL if no transformation at
4644 * all took place (because bidi is disabled). If return was
4645 * non-NULL, auxiliary information such as the forward and reverse
4646 * mappings of permutation position are available in
4647 * term->post_bidi_cache[scr_y].*.
4649 static termchar
*term_bidi_line(Terminal
*term
, struct termline
*ldata
,
4655 /* Do Arabic shaping and bidi. */
4656 if(!term
->bidi
|| !term
->arabicshaping
) {
4658 if (!term_bidi_cache_hit(term
, scr_y
, ldata
->chars
, term
->cols
)) {
4660 if (term
->wcFromTo_size
< term
->cols
) {
4661 term
->wcFromTo_size
= term
->cols
;
4662 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4664 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4668 for(it
=0; it
<term
->cols
; it
++)
4670 unsigned long uc
= (ldata
->chars
[it
].chr
);
4672 switch (uc
& CSET_MASK
) {
4674 if (!term
->rawcnp
) {
4675 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4679 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4682 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4685 switch (uc
& CSET_MASK
) {
4687 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4690 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4694 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4696 term
->wcFrom
[it
].index
= it
;
4700 do_bidi(term
->wcFrom
, term
->cols
);
4702 /* this is saved iff done from inside the shaping */
4703 if(!term
->bidi
&& term
->arabicshaping
)
4704 for(it
=0; it
<term
->cols
; it
++)
4705 term
->wcTo
[it
] = term
->wcFrom
[it
];
4707 if(!term
->arabicshaping
)
4708 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4710 if (term
->ltemp_size
< ldata
->size
) {
4711 term
->ltemp_size
= ldata
->size
;
4712 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4716 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4718 for(it
=0; it
<term
->cols
; it
++)
4720 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4721 if (term
->ltemp
[it
].cc_next
)
4722 term
->ltemp
[it
].cc_next
-=
4723 it
- term
->wcTo
[it
].index
;
4725 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4726 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4728 term_bidi_cache_store(term
, scr_y
, ldata
->chars
,
4729 term
->ltemp
, term
->wcTo
,
4730 term
->cols
, ldata
->size
);
4732 lchars
= term
->ltemp
;
4734 lchars
= term
->post_bidi_cache
[scr_y
].chars
;
4744 * Given a context, update the window. Out of paranoia, we don't
4745 * allow WM_PAINT responses to do scrolling optimisations.
4747 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4749 int i
, j
, our_curs_y
, our_curs_x
;
4754 #ifdef OPTIMISE_SCROLL
4755 struct scrollregion
*sr
;
4756 #endif /* OPTIMISE_SCROLL */
4760 ch
= snewn(chlen
, wchar_t);
4762 newline
= snewn(term
->cols
, termchar
);
4764 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4767 * screen array, disptop, scrtop,
4769 * blinkpc, blink_is_real, tblinker,
4770 * curs.y, curs.x, cblinker, blink_cur, cursor_on, has_focus, wrapnext
4773 /* Has the cursor position or type changed ? */
4774 if (term
->cursor_on
) {
4775 if (term
->has_focus
) {
4776 if (term
->cblinker
|| !term
->blink_cur
)
4777 cursor
= TATTR_ACTCURS
;
4781 cursor
= TATTR_PASCURS
;
4783 cursor
|= TATTR_RIGHTCURS
;
4786 our_curs_y
= term
->curs
.y
- term
->disptop
;
4789 * Adjust the cursor position:
4791 * - in the case where it's resting on the right-hand half
4792 * of a CJK wide character. xterm's behaviour here,
4793 * which seems adequate to me, is to display the cursor
4794 * covering the _whole_ character, exactly as if it were
4795 * one space to the left.
4797 termline
*ldata
= lineptr(term
->curs
.y
);
4800 our_curs_x
= term
->curs
.x
;
4802 if ( (lchars
= term_bidi_line(term
, ldata
, our_curs_y
)) != NULL
) {
4803 our_curs_x
= term
->post_bidi_cache
[our_curs_y
].forward
[our_curs_x
];
4805 lchars
= ldata
->chars
;
4807 if (our_curs_x
> 0 &&
4808 lchars
[our_curs_x
].chr
== UCSWIDE
)
4815 * If the cursor is not where it was last time we painted, and
4816 * its previous position is visible on screen, invalidate its
4817 * previous position.
4819 if (term
->dispcursy
>= 0 &&
4820 (term
->curstype
!= cursor
||
4821 term
->dispcursy
!= our_curs_y
||
4822 term
->dispcursx
!= our_curs_x
)) {
4823 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4826 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4827 dispcurs
[-1].attr
|= ATTR_INVALID
;
4828 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4829 dispcurs
[1].attr
|= ATTR_INVALID
;
4830 dispcurs
->attr
|= ATTR_INVALID
;
4834 term
->dispcursx
= term
->dispcursy
= -1;
4836 #ifdef OPTIMISE_SCROLL
4838 sr
= term
->scrollhead
;
4840 struct scrollregion
*next
= sr
->next
;
4841 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4845 term
->scrollhead
= term
->scrolltail
= NULL
;
4846 #endif /* OPTIMISE_SCROLL */
4848 /* The normal screen data */
4849 for (i
= 0; i
< term
->rows
; i
++) {
4852 int dirty_line
, dirty_run
, selected
;
4853 unsigned long attr
= 0, cset
= 0;
4856 int last_run_dirty
= 0;
4857 int laststart
, dirtyrect
;
4860 scrpos
.y
= i
+ term
->disptop
;
4861 ldata
= lineptr(scrpos
.y
);
4863 /* Do Arabic shaping and bidi. */
4864 lchars
= term_bidi_line(term
, ldata
, i
);
4866 backward
= term
->post_bidi_cache
[i
].backward
;
4868 lchars
= ldata
->chars
;
4873 * First loop: work along the line deciding what we want
4874 * each character cell to look like.
4876 for (j
= 0; j
< term
->cols
; j
++) {
4877 unsigned long tattr
, tchar
;
4878 termchar
*d
= lchars
+ j
;
4879 scrpos
.x
= backward ? backward
[j
] : j
;
4884 if (!term
->ansi_colour
)
4885 tattr
= (tattr
& ~(ATTR_FGMASK
| ATTR_BGMASK
)) |
4886 ATTR_DEFFG
| ATTR_DEFBG
;
4888 if (!term
->xterm_256_colour
) {
4890 colour
= (tattr
& ATTR_FGMASK
) >> ATTR_FGSHIFT
;
4891 if (colour
>= 16 && colour
< 256)
4892 tattr
= (tattr
&~ ATTR_FGMASK
) | ATTR_DEFFG
;
4893 colour
= (tattr
& ATTR_BGMASK
) >> ATTR_BGSHIFT
;
4894 if (colour
>= 16 && colour
< 256)
4895 tattr
= (tattr
&~ ATTR_BGMASK
) | ATTR_DEFBG
;
4898 switch (tchar
& CSET_MASK
) {
4900 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4903 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4906 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4909 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4912 /* Video reversing things */
4913 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4914 if (term
->seltype
== LEXICOGRAPHIC
)
4915 selected
= (posle(term
->selstart
, scrpos
) &&
4916 poslt(scrpos
, term
->selend
));
4918 selected
= (posPle(term
->selstart
, scrpos
) &&
4919 posPlt(scrpos
, term
->selend
));
4923 ^ (selected ? ATTR_REVERSE
: 0));
4925 /* 'Real' blinking ? */
4926 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4927 if (term
->has_focus
&& term
->tblinker
) {
4928 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4930 tattr
&= ~ATTR_BLINK
;
4934 * Check the font we'll _probably_ be using to see if
4935 * the character is wide when we don't want it to be.
4937 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4938 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4939 (ATTR_NARROW
| DATTR_MASK
))) {
4940 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4941 tattr
|= ATTR_NARROW
;
4942 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4943 tattr
|= ATTR_NARROW
;
4945 if (i
== our_curs_y
&& j
== our_curs_x
) {
4947 term
->curstype
= cursor
;
4948 term
->dispcursx
= j
;
4949 term
->dispcursy
= i
;
4953 newline
[j
].attr
= tattr
;
4954 newline
[j
].chr
= tchar
;
4955 /* Combining characters are still read from lchars */
4956 newline
[j
].cc_next
= 0;
4960 * Now loop over the line again, noting where things have
4963 * During this loop, we keep track of where we last saw
4964 * DATTR_STARTRUN. Any mismatch automatically invalidates
4965 * _all_ of the containing run that was last printed: that
4966 * is, any rectangle that was drawn in one go in the
4967 * previous update should be either left completely alone
4968 * or overwritten in its entirety. This, along with the
4969 * expectation that front ends clip all text runs to their
4970 * bounding rectangle, should solve any possible problems
4971 * with fonts that overflow their character cells.
4975 for (j
= 0; j
< term
->cols
; j
++) {
4976 if (term
->disptext
[i
]->chars
[j
].attr
& DATTR_STARTRUN
) {
4981 if (term
->disptext
[i
]->chars
[j
].chr
!= newline
[j
].chr
||
4982 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
)
4983 != newline
[j
].attr
) {
4987 for (k
= laststart
; k
< j
; k
++)
4988 term
->disptext
[i
]->chars
[k
].attr
|= ATTR_INVALID
;
4995 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
4999 * Finally, loop once more and actually do the drawing.
5001 dirty_run
= dirty_line
= (ldata
->lattr
!=
5002 term
->disptext
[i
]->lattr
);
5003 term
->disptext
[i
]->lattr
= ldata
->lattr
;
5005 for (j
= 0; j
< term
->cols
; j
++) {
5006 unsigned long tattr
, tchar
;
5007 int break_run
, do_copy
;
5008 termchar
*d
= lchars
+ j
;
5010 tattr
= newline
[j
].attr
;
5011 tchar
= newline
[j
].chr
;
5013 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
5016 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
5018 /* Special hack for VT100 Linedraw glyphs */
5019 if ((tchar
>= 0x23BA && tchar
<= 0x23BD) ||
5020 (j
> 0 && (newline
[j
-1].chr
>= 0x23BA &&
5021 newline
[j
-1].chr
<= 0x23BD)))
5025 * Separate out sequences of characters that have the
5026 * same CSET, if that CSET is a magic one.
5028 if (CSET_OF(tchar
) != cset
)
5032 * Break on both sides of any combined-character cell.
5034 if (d
->cc_next
!= 0 ||
5035 (j
> 0 && d
[-1].cc_next
!= 0))
5038 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
5039 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
5040 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
) == tattr
)
5042 else if (!dirty_run
&& ccount
== 1)
5047 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
5048 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
5050 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
5051 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
5057 cset
= CSET_OF(tchar
);
5058 if (term
->ucsdata
->dbcs_screenfont
)
5059 last_run_dirty
= dirty_run
;
5060 dirty_run
= dirty_line
;
5064 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
5070 if (ccount
>= chlen
) {
5071 chlen
= ccount
+ 256;
5072 ch
= sresize(ch
, chlen
, wchar_t);
5074 ch
[ccount
++] = (wchar_t) tchar
;
5079 while (dd
->cc_next
) {
5080 unsigned long schar
;
5085 switch (schar
& CSET_MASK
) {
5087 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
5090 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
5093 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
5097 if (ccount
>= chlen
) {
5098 chlen
= ccount
+ 256;
5099 ch
= sresize(ch
, chlen
, wchar_t);
5101 ch
[ccount
++] = (wchar_t) schar
;
5104 attr
|= TATTR_COMBINING
;
5108 copy_termchar(term
->disptext
[i
], j
, d
);
5109 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
5110 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
5112 term
->disptext
[i
]->chars
[j
].attr
|= DATTR_STARTRUN
;
5115 /* If it's a wide char step along to the next one. */
5116 if (tattr
& ATTR_WIDE
) {
5117 if (++j
< term
->cols
) {
5120 * By construction above, the cursor should not
5121 * be on the right-hand half of this character.
5124 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
5125 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
5127 copy_termchar(term
->disptext
[i
], j
, d
);
5131 if (dirty_run
&& ccount
> 0) {
5132 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
5134 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
5135 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
5147 * Invalidate the whole screen so it will be repainted in full.
5149 void term_invalidate(Terminal
*term
)
5153 for (i
= 0; i
< term
->rows
; i
++)
5154 for (j
= 0; j
< term
->cols
; j
++)
5155 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5157 term_schedule_update(term
);
5161 * Paint the window in response to a WM_PAINT message.
5163 void term_paint(Terminal
*term
, Context ctx
,
5164 int left
, int top
, int right
, int bottom
, int immediately
)
5167 if (left
< 0) left
= 0;
5168 if (top
< 0) top
= 0;
5169 if (right
>= term
->cols
) right
= term
->cols
-1;
5170 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
5172 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
5173 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
5174 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
5175 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5177 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
5178 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5182 do_paint (term
, ctx
, FALSE
);
5184 term_schedule_update(term
);
5189 * Attempt to scroll the scrollback. The second parameter gives the
5190 * position we want to scroll to; the first is +1 to denote that
5191 * this position is relative to the beginning of the scrollback, -1
5192 * to denote it is relative to the end, and 0 to denote that it is
5193 * relative to the current position.
5195 void term_scroll(Terminal
*term
, int rel
, int where
)
5197 int sbtop
= -sblines(term
);
5198 #ifdef OPTIMISE_SCROLL
5199 int olddisptop
= term
->disptop
;
5201 #endif /* OPTIMISE_SCROLL */
5203 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
5204 if (term
->disptop
< sbtop
)
5205 term
->disptop
= sbtop
;
5206 if (term
->disptop
> 0)
5209 #ifdef OPTIMISE_SCROLL
5210 shift
= (term
->disptop
- olddisptop
);
5211 if (shift
< term
->rows
&& shift
> -term
->rows
)
5212 scroll_display(term
, 0, term
->rows
- 1, shift
);
5213 #endif /* OPTIMISE_SCROLL */
5218 * Scroll the scrollback to centre it on the beginning or end of the
5219 * current selection, if any.
5221 void term_scroll_to_selection(Terminal
*term
, int which_end
)
5225 int sbtop
= -sblines(term
);
5227 if (term
->selstate
!= SELECTED
)
5230 target
= term
->selend
;
5232 target
= term
->selstart
;
5234 y
= target
.y
- term
->rows
/2;
5239 term_scroll(term
, -1, y
);
5243 * Helper routine for clipme(): growing buffer.
5246 int buflen
; /* amount of allocated space in textbuf/attrbuf */
5247 int bufpos
; /* amount of actual data */
5248 wchar_t *textbuf
; /* buffer for copied text */
5249 wchar_t *textptr
; /* = textbuf + bufpos (current insertion point) */
5250 int *attrbuf
; /* buffer for copied attributes */
5251 int *attrptr
; /* = attrbuf + bufpos */
5254 static void clip_addchar(clip_workbuf
*b
, wchar_t chr
, int attr
)
5256 if (b
->bufpos
>= b
->buflen
) {
5258 b
->textbuf
= sresize(b
->textbuf
, b
->buflen
, wchar_t);
5259 b
->textptr
= b
->textbuf
+ b
->bufpos
;
5260 b
->attrbuf
= sresize(b
->attrbuf
, b
->buflen
, int);
5261 b
->attrptr
= b
->attrbuf
+ b
->bufpos
;
5263 *b
->textptr
++ = chr
;
5264 *b
->attrptr
++ = attr
;
5268 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
5276 buf
.textptr
= buf
.textbuf
= snewn(buf
.buflen
, wchar_t);
5277 buf
.attrptr
= buf
.attrbuf
= snewn(buf
.buflen
, int);
5279 old_top_x
= top
.x
; /* needed for rect==1 */
5281 while (poslt(top
, bottom
)) {
5283 termline
*ldata
= lineptr(top
.y
);
5287 * nlpos will point at the maximum position on this line we
5288 * should copy up to. So we start it at the end of the
5292 nlpos
.x
= term
->cols
;
5295 * ... move it backwards if there's unused space at the end
5296 * of the line (and also set `nl' if this is the case,
5297 * because in normal selection mode this means we need a
5298 * newline at the end)...
5300 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5302 IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
5303 !ldata
->chars
[nlpos
.x
- 1].cc_next
&&
5306 if (poslt(nlpos
, bottom
))
5308 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
5309 /* Ignore the last char on the line in a WRAPPED2 line. */
5314 * ... and then clip it to the terminal x coordinate if
5315 * we're doing rectangular selection. (In this case we
5316 * still did the above, so that copying e.g. the right-hand
5317 * column from a table doesn't fill with spaces on the
5321 if (nlpos
.x
> bottom
.x
)
5323 nl
= (top
.y
< bottom
.y
);
5326 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
5329 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
5331 wchar_t cbuf
[16], *p
;
5335 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
5341 int uc
= ldata
->chars
[x
].chr
;
5342 attr
= ldata
->chars
[x
].attr
;
5344 switch (uc
& CSET_MASK
) {
5346 if (!term
->rawcnp
) {
5347 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5351 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5354 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5357 switch (uc
& CSET_MASK
) {
5359 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5362 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5366 c
= (uc
& ~CSET_MASK
);
5367 #ifdef PLATFORM_IS_UTF16
5368 if (uc
> 0x10000 && uc
< 0x110000) {
5369 cbuf
[0] = 0xD800 | ((uc
- 0x10000) >> 10);
5370 cbuf
[1] = 0xDC00 | ((uc
- 0x10000) & 0x3FF);
5379 if (DIRECT_FONT(uc
)) {
5380 if (c
>= ' ' && c
!= 0x7F) {
5384 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
5386 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
5387 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
5391 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
5395 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
5402 for (p
= cbuf
; *p
; p
++)
5403 clip_addchar(&buf
, *p
, attr
);
5405 if (ldata
->chars
[x
].cc_next
)
5406 x
+= ldata
->chars
[x
].cc_next
;
5414 for (i
= 0; i
< sel_nl_sz
; i
++)
5415 clip_addchar(&buf
, sel_nl
[i
], 0);
5418 top
.x
= rect ? old_top_x
: 0;
5422 #if SELECTION_NUL_TERMINATED
5423 clip_addchar(&buf
, 0, 0);
5425 /* Finally, transfer all that to the clipboard. */
5426 write_clip(term
->frontend
, buf
.textbuf
, buf
.attrbuf
, buf
.bufpos
, desel
);
5431 void term_copyall(Terminal
*term
)
5435 tree234
*screen
= term
->screen
;
5436 top
.y
= -sblines(term
);
5438 bottom
.y
= find_last_nonempty_line(term
, screen
);
5439 bottom
.x
= term
->cols
;
5440 clipme(term
, top
, bottom
, 0, TRUE
);
5444 * The wordness array is mainly for deciding the disposition of the
5445 * US-ASCII characters.
5447 static int wordtype(Terminal
*term
, int uc
)
5450 int start
, end
, ctype
;
5452 static const struct ucsword ucs_words
[] = {
5458 0x037e, 0x037e, 1}, /* Greek question mark */
5460 0x0387, 0x0387, 1}, /* Greek ano teleia */
5462 0x055a, 0x055f, 1}, /* Armenian punctuation */
5464 0x0589, 0x0589, 1}, /* Armenian full stop */
5466 0x0700, 0x070d, 1}, /* Syriac punctuation */
5468 0x104a, 0x104f, 1}, /* Myanmar punctuation */
5470 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
5472 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
5474 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
5476 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
5478 0x1800, 0x180a, 1}, /* Mongolian punctuation */
5480 0x2000, 0x200a, 0}, /* Various spaces */
5482 0x2070, 0x207f, 2}, /* superscript */
5484 0x2080, 0x208f, 2}, /* subscript */
5486 0x200b, 0x27ff, 1}, /* punctuation and symbols */
5488 0x3000, 0x3000, 0}, /* ideographic space */
5490 0x3001, 0x3020, 1}, /* ideographic punctuation */
5492 0x303f, 0x309f, 3}, /* Hiragana */
5494 0x30a0, 0x30ff, 3}, /* Katakana */
5496 0x3300, 0x9fff, 3}, /* CJK Ideographs */
5498 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5500 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5502 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5504 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5506 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5508 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5510 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5512 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5516 const struct ucsword
*wptr
;
5518 switch (uc
& CSET_MASK
) {
5520 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5523 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5526 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5529 switch (uc
& CSET_MASK
) {
5531 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5534 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5538 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5539 * fail as there's such a thing as a double width space. :-(
5541 if (term
->ucsdata
->dbcs_screenfont
&&
5542 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5546 return term
->wordness
[uc
];
5548 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5549 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5557 * Spread the selection outwards according to the selection mode.
5559 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5563 int topy
= -sblines(term
);
5565 ldata
= lineptr(p
.y
);
5567 switch (term
->selmode
) {
5570 * In this mode, every character is a separate unit, except
5571 * for runs of spaces at the end of a non-wrapping line.
5573 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5574 termchar
*q
= ldata
->chars
+ term
->cols
;
5575 while (q
> ldata
->chars
&&
5576 IS_SPACE_CHR(q
[-1].chr
) && !q
[-1].cc_next
)
5578 if (q
== ldata
->chars
+ term
->cols
)
5580 if (p
.x
>= q
- ldata
->chars
)
5581 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5586 * In this mode, the units are maximal runs of characters
5587 * whose `wordness' has the same value.
5589 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5592 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5593 term
->cols
-1 : term
->cols
);
5594 if (p
.x
< maxcols
-1) {
5595 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5600 if (ldata
->lattr
& LATTR_WRAPPED
) {
5602 ldata2
= lineptr(p
.y
+1);
5603 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5620 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5629 ldata2
= lineptr(p
.y
-1);
5630 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5631 term
->cols
-1 : term
->cols
);
5632 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5633 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5651 * In this mode, every line is a unit.
5653 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5661 static void sel_spread(Terminal
*term
)
5663 if (term
->seltype
== LEXICOGRAPHIC
) {
5664 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5665 decpos(term
->selend
);
5666 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5667 incpos(term
->selend
);
5671 void term_do_paste(Terminal
*term
)
5676 get_clip(term
->frontend
, &data
, &len
);
5677 if (data
&& len
> 0) {
5680 term_seen_key_event(term
); /* pasted data counts */
5682 if (term
->paste_buffer
)
5683 sfree(term
->paste_buffer
);
5684 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5685 term
->paste_buffer
= snewn(len
, wchar_t);
5688 while (p
< data
+ len
) {
5689 while (p
< data
+ len
&&
5690 !(p
<= data
+ len
- sel_nl_sz
&&
5691 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5696 for (i
= 0; i
< p
- q
; i
++) {
5697 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5701 if (p
<= data
+ len
- sel_nl_sz
&&
5702 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5703 term
->paste_buffer
[term
->paste_len
++] = '\015';
5709 /* Assume a small paste will be OK in one go. */
5710 if (term
->paste_len
< 256) {
5712 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5713 if (term
->paste_buffer
)
5714 sfree(term
->paste_buffer
);
5715 term
->paste_buffer
= 0;
5716 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5719 get_clip(term
->frontend
, NULL
, NULL
);
5722 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5723 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5727 int raw_mouse
= (term
->xterm_mouse
&&
5728 !term
->no_mouse_rep
&&
5729 !(term
->mouse_override
&& shift
));
5730 int default_seltype
;
5734 if (a
== MA_DRAG
&& !raw_mouse
)
5735 term_scroll(term
, 0, -1);
5737 if (y
>= term
->rows
) {
5739 if (a
== MA_DRAG
&& !raw_mouse
)
5740 term_scroll(term
, 0, +1);
5749 if (x
>= term
->cols
)
5752 selpoint
.y
= y
+ term
->disptop
;
5753 ldata
= lineptr(selpoint
.y
);
5755 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5759 * Transform x through the bidi algorithm to find the _logical_
5760 * click point from the physical one.
5762 if (term_bidi_line(term
, ldata
, y
) != NULL
) {
5763 x
= term
->post_bidi_cache
[y
].backward
[x
];
5770 * If we're in the middle of a selection operation, we ignore raw
5771 * mouse mode until it's done (we must have been not in raw mouse
5772 * mode when it started).
5773 * This makes use of Shift for selection reliable, and avoids the
5774 * host seeing mouse releases for which they never saw corresponding
5778 (term
->selstate
!= ABOUT_TO
) && (term
->selstate
!= DRAGGING
)) {
5779 int encstate
= 0, r
, c
;
5786 encstate
= 0x20; /* left button down */
5797 case MBT_WHEEL_DOWN
:
5800 default: break; /* placate gcc warning about enum use */
5804 if (term
->xterm_mouse
== 1)
5810 term
->mouse_is_down
= 0;
5813 if (term
->mouse_is_down
== braw
)
5815 term
->mouse_is_down
= braw
;
5817 default: break; /* placate gcc warning about enum use */
5826 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5827 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5833 * Set the selection type (rectangular or normal) at the start
5834 * of a selection attempt, from the state of Alt.
5836 if (!alt
^ !term
->rect_select
)
5837 default_seltype
= RECTANGULAR
;
5839 default_seltype
= LEXICOGRAPHIC
;
5841 if (term
->selstate
== NO_SELECTION
) {
5842 term
->seltype
= default_seltype
;
5845 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5847 term
->selstate
= ABOUT_TO
;
5848 term
->seltype
= default_seltype
;
5849 term
->selanchor
= selpoint
;
5850 term
->selmode
= SM_CHAR
;
5851 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5853 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5854 term
->selstate
= DRAGGING
;
5855 term
->selstart
= term
->selanchor
= selpoint
;
5856 term
->selend
= term
->selstart
;
5857 incpos(term
->selend
);
5859 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5860 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5861 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5863 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5864 term
->selstate
== SELECTED
) {
5865 if (term
->seltype
== LEXICOGRAPHIC
) {
5867 * For normal selection, we extend by moving
5868 * whichever end of the current selection is closer
5871 if (posdiff(selpoint
, term
->selstart
) <
5872 posdiff(term
->selend
, term
->selstart
) / 2) {
5873 term
->selanchor
= term
->selend
;
5874 decpos(term
->selanchor
);
5876 term
->selanchor
= term
->selstart
;
5880 * For rectangular selection, we have a choice of
5881 * _four_ places to put selanchor and selpoint: the
5882 * four corners of the selection.
5884 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5885 term
->selanchor
.x
= term
->selend
.x
-1;
5887 term
->selanchor
.x
= term
->selstart
.x
;
5889 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5890 term
->selanchor
.y
= term
->selend
.y
;
5892 term
->selanchor
.y
= term
->selstart
.y
;
5894 term
->selstate
= DRAGGING
;
5896 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5897 term
->selanchor
= selpoint
;
5898 term
->selstate
= DRAGGING
;
5899 if (term
->seltype
== LEXICOGRAPHIC
) {
5901 * For normal selection, we set (selstart,selend) to
5902 * (selpoint,selanchor) in some order.
5904 if (poslt(selpoint
, term
->selanchor
)) {
5905 term
->selstart
= selpoint
;
5906 term
->selend
= term
->selanchor
;
5907 incpos(term
->selend
);
5909 term
->selstart
= term
->selanchor
;
5910 term
->selend
= selpoint
;
5911 incpos(term
->selend
);
5915 * For rectangular selection, we may need to
5916 * interchange x and y coordinates (if the user has
5917 * dragged in the -x and +y directions, or vice versa).
5919 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5920 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5921 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5922 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5925 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5927 if (term
->selstate
== DRAGGING
) {
5929 * We've completed a selection. We now transfer the
5930 * data to the clipboard.
5932 clipme(term
, term
->selstart
, term
->selend
,
5933 (term
->seltype
== RECTANGULAR
), FALSE
);
5934 term
->selstate
= SELECTED
;
5936 term
->selstate
= NO_SELECTION
;
5937 } else if (bcooked
== MBT_PASTE
5939 #if MULTICLICK_ONLY_EVENT
5940 || a
== MA_2CLK
|| a
== MA_3CLK
5943 request_paste(term
->frontend
);
5949 int format_arrow_key(char *buf
, Terminal
*term
, int xkey
, int ctrl
)
5953 if (term
->vt52_mode
)
5954 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5956 int app_flg
= (term
->app_cursor_keys
&& !term
->no_applic_c
);
5959 * RDB: VT100 & VT102 manuals both state the app cursor
5960 * keys only work if the app keypad is on.
5962 * SGT: That may well be true, but xterm disagrees and so
5963 * does at least one application, so I've #if'ed this out
5964 * and the behaviour is back to PuTTY's original: app
5965 * cursor and app keypad are independently switchable
5966 * modes. If anyone complains about _this_ I'll have to
5967 * put in a configurable option.
5969 if (!term
->app_keypad_keys
)
5972 /* Useful mapping of Ctrl-arrows */
5977 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5979 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5985 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5986 unsigned int modifiers
, unsigned int flags
)
5990 int prependesc
= FALSE
;
5994 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5995 for (i
= 0; i
< tlen
; i
++)
5996 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5997 fprintf(stderr
, "\n");
6001 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
6004 /* Currently, Meta always just prefixes everything with ESC. */
6005 if (modifiers
& PKM_META
)
6007 modifiers
&= ~PKM_META
;
6010 * Alt is only used for Alt+keypad, which isn't supported yet, so
6013 modifiers
&= ~PKM_ALT
;
6015 /* Standard local function keys */
6016 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
6018 if (keysym
== PK_PAGEUP
)
6019 /* scroll up one page */;
6020 if (keysym
== PK_PAGEDOWN
)
6021 /* scroll down on page */;
6022 if (keysym
== PK_INSERT
)
6023 term_do_paste(term
);
6026 if (keysym
== PK_PAGEUP
)
6027 /* scroll up one line */;
6028 if (keysym
== PK_PAGEDOWN
)
6029 /* scroll down one line */;
6030 /* Control-Numlock for app-keypad mode switch */
6031 if (keysym
== PK_PF1
)
6032 term
->app_keypad_keys
^= 1;
6036 if (modifiers
& PKM_ALT
) {
6037 /* Alt+F4 (close) */
6038 /* Alt+Return (full screen) */
6039 /* Alt+Space (system menu) */
6042 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
6043 text
[0] >= 0x20 && text
[0] <= 0x7e) {
6044 /* ASCII chars + Control */
6045 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
6046 (text
[0] >= 0x61 && text
[0] <= 0x7a))
6050 * Control-2 should return ^@ (0x00), Control-6 should return
6051 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
6052 * the DOS keyboard handling did it, and we have nothing better
6053 * to do with the key combo in question, we'll also map
6054 * Control-Backquote to ^\ (0x1C).
6057 case ' ': text
[0] = 0x00; break;
6058 case '-': text
[0] = 0x1f; break;
6059 case '/': text
[0] = 0x1f; break;
6060 case '2': text
[0] = 0x00; break;
6061 case '3': text
[0] = 0x1b; break;
6062 case '4': text
[0] = 0x1c; break;
6063 case '5': text
[0] = 0x1d; break;
6064 case '6': text
[0] = 0x1e; break;
6065 case '7': text
[0] = 0x1f; break;
6066 case '8': text
[0] = 0x7f; break;
6067 case '`': text
[0] = 0x1c; break;
6072 /* Nethack keypad */
6073 if (term
->nethack_keypad
) {
6076 case PK_KP1
: c
= 'b'; break;
6077 case PK_KP2
: c
= 'j'; break;
6078 case PK_KP3
: c
= 'n'; break;
6079 case PK_KP4
: c
= 'h'; break;
6080 case PK_KP5
: c
= '.'; break;
6081 case PK_KP6
: c
= 'l'; break;
6082 case PK_KP7
: c
= 'y'; break;
6083 case PK_KP8
: c
= 'k'; break;
6084 case PK_KP9
: c
= 'u'; break;
6085 default: break; /* else gcc warns `enum value not used' */
6089 if (modifiers
& PKM_CONTROL
)
6091 else if (modifiers
& PKM_SHIFT
)
6092 c
= toupper((unsigned char)c
);
6099 /* Numeric Keypad */
6100 if (PK_ISKEYPAD(keysym
)) {
6104 * In VT400 mode, PFn always emits an escape sequence. In
6105 * Linux and tilde modes, this only happens in app keypad mode.
6107 if (term
->funky_type
== FUNKY_VT400
||
6108 ((term
->funky_type
== FUNKY_LINUX
||
6109 term
->funky_type
== FUNKY_TILDE
) &&
6110 term
->app_keypad_keys
&& !term
->no_applic_k
)) {
6112 case PK_PF1
: xkey
= 'P'; break;
6113 case PK_PF2
: xkey
= 'Q'; break;
6114 case PK_PF3
: xkey
= 'R'; break;
6115 case PK_PF4
: xkey
= 'S'; break;
6116 default: break; /* else gcc warns `enum value not used' */
6119 if (term
->app_keypad_keys
&& !term
->no_applic_k
) {
6121 case PK_KP0
: xkey
= 'p'; break;
6122 case PK_KP1
: xkey
= 'q'; break;
6123 case PK_KP2
: xkey
= 'r'; break;
6124 case PK_KP3
: xkey
= 's'; break;
6125 case PK_KP4
: xkey
= 't'; break;
6126 case PK_KP5
: xkey
= 'u'; break;
6127 case PK_KP6
: xkey
= 'v'; break;
6128 case PK_KP7
: xkey
= 'w'; break;
6129 case PK_KP8
: xkey
= 'x'; break;
6130 case PK_KP9
: xkey
= 'y'; break;
6131 case PK_KPDECIMAL
: xkey
= 'n'; break;
6132 case PK_KPENTER
: xkey
= 'M'; break;
6133 default: break; /* else gcc warns `enum value not used' */
6135 if (term
->funky_type
== FUNKY_XTERM
&& tlen
> 0) {
6137 * xterm can't see the layout of the keypad, so it has
6138 * to rely on the X keysyms returned by the keys.
6139 * Hence, we look at the strings here, not the PuTTY
6140 * keysyms (which describe the layout).
6144 if (modifiers
& PKM_SHIFT
)
6149 case '/': xkey
= 'o'; break;
6150 case '*': xkey
= 'j'; break;
6151 case '-': xkey
= 'm'; break;
6155 * In all other modes, we try to retain the layout of
6156 * the DEC keypad in application mode.
6160 /* This key covers the '-' and ',' keys on a VT220 */
6161 if (modifiers
& PKM_SHIFT
)
6162 xkey
= 'm'; /* VT220 '-' */
6164 xkey
= 'l'; /* VT220 ',' */
6166 case PK_KPMINUS
: xkey
= 'm'; break;
6167 case PK_KPCOMMA
: xkey
= 'l'; break;
6168 default: break; /* else gcc warns `enum value not used' */
6173 if (term
->vt52_mode
) {
6174 if (xkey
>= 'P' && xkey
<= 'S')
6175 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6177 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
6179 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
6182 /* Not in application mode -- treat the number pad as arrow keys? */
6183 if ((flags
& PKF_NUMLOCK
) == 0) {
6185 case PK_KP0
: keysym
= PK_INSERT
; break;
6186 case PK_KP1
: keysym
= PK_END
; break;
6187 case PK_KP2
: keysym
= PK_DOWN
; break;
6188 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
6189 case PK_KP4
: keysym
= PK_LEFT
; break;
6190 case PK_KP5
: keysym
= PK_REST
; break;
6191 case PK_KP6
: keysym
= PK_RIGHT
; break;
6192 case PK_KP7
: keysym
= PK_HOME
; break;
6193 case PK_KP8
: keysym
= PK_UP
; break;
6194 case PK_KP9
: keysym
= PK_PAGEUP
; break;
6195 default: break; /* else gcc warns `enum value not used' */
6200 /* Miscellaneous keys */
6207 *p
++ = (term
->bksp_is_delete ?
0x7F : 0x08);
6208 else if (modifiers
== PKM_SHIFT
)
6209 /* We do the opposite of what is configured */
6210 *p
++ = (term
->bksp_is_delete ?
0x08 : 0x7F);
6216 else if (modifiers
== PKM_SHIFT
)
6217 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
6220 /* XXX window.c has ctrl+shift+space sending 0xa0 */
6222 if (modifiers
== PKM_CONTROL
)
6227 case PK_KPENTER
: /* Odd keypad modes handled above */
6228 if (modifiers
== 0) {
6230 if (term
->cr_lf_return
)
6234 default: break; /* else gcc warns `enum value not used' */
6237 /* SCO function keys and editing keys */
6238 if (term
->funky_type
== FUNKY_SCO
) {
6239 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
6240 static char const codes
[] =
6241 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
6242 int index
= keysym
- PK_F1
;
6244 if (modifiers
& PKM_SHIFT
) index
+= 12;
6245 if (modifiers
& PKM_CONTROL
) index
+= 24;
6246 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
6249 if (PK_ISEDITING(keysym
)) {
6253 case PK_DELETE
: *p
++ = 0x7f; goto done
;
6254 case PK_HOME
: xkey
= 'H'; break;
6255 case PK_INSERT
: xkey
= 'L'; break;
6256 case PK_END
: xkey
= 'F'; break;
6257 case PK_PAGEUP
: xkey
= 'I'; break;
6258 case PK_PAGEDOWN
: xkey
= 'G'; break;
6259 default: break; /* else gcc warns `enum value not used' */
6261 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
6265 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
6268 if (term
->funky_type
== FUNKY_XTERM
) {
6269 /* Xterm shuffles these keys, apparently. */
6271 case PK_HOME
: keysym
= PK_INSERT
; break;
6272 case PK_INSERT
: keysym
= PK_HOME
; break;
6273 case PK_DELETE
: keysym
= PK_END
; break;
6274 case PK_END
: keysym
= PK_PAGEUP
; break;
6275 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
6276 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
6277 default: break; /* else gcc warns `enum value not used' */
6282 if (term
->rxvt_homeend
&&
6283 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
6284 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
6288 if (term
->vt52_mode
) {
6292 * A real VT52 doesn't have these, and a VT220 doesn't
6293 * send anything for them in VT52 mode.
6296 case PK_HOME
: xkey
= 'H'; break;
6297 case PK_INSERT
: xkey
= 'L'; break;
6298 case PK_DELETE
: xkey
= 'M'; break;
6299 case PK_END
: xkey
= 'E'; break;
6300 case PK_PAGEUP
: xkey
= 'I'; break;
6301 case PK_PAGEDOWN
: xkey
= 'G'; break;
6302 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
6304 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6309 case PK_HOME
: code
= 1; break;
6310 case PK_INSERT
: code
= 2; break;
6311 case PK_DELETE
: code
= 3; break;
6312 case PK_END
: code
= 4; break;
6313 case PK_PAGEUP
: code
= 5; break;
6314 case PK_PAGEDOWN
: code
= 6; break;
6315 default: code
= 0; break; /* else gcc warns `enum value not used' */
6317 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
6321 if (PK_ISFKEY(keysym
)) {
6322 /* Map Shift+F1-F10 to F11-F20 */
6323 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
6325 if ((term
->vt52_mode
|| term
->funky_type
== FUNKY_VT100P
) &&
6327 /* XXX This overrides the XTERM/VT52 mode below */
6329 if (keysym
>= PK_F6
) offt
++;
6330 if (keysym
>= PK_F12
) offt
++;
6331 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
6332 'P' + keysym
- PK_F1
- offt
);
6335 if (term
->funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
6336 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
6339 if (term
->funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
6340 if (term
->vt52_mode
)
6341 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
6343 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
6346 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
6350 if (PK_ISCURSOR(keysym
)) {
6354 case PK_UP
: xkey
= 'A'; break;
6355 case PK_DOWN
: xkey
= 'B'; break;
6356 case PK_RIGHT
: xkey
= 'C'; break;
6357 case PK_LEFT
: xkey
= 'D'; break;
6358 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
6359 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
6361 p
+= format_arrow_key(p
, term
, xkey
, modifiers
== PKM_CONTROL
);
6366 if (p
> output
|| tlen
> 0) {
6368 * Interrupt an ongoing paste. I'm not sure
6369 * this is sensible, but for the moment it's
6370 * preferable to having to faff about buffering
6376 * We need not bother about stdin backlogs
6377 * here, because in GUI PuTTY we can't do
6378 * anything about it anyway; there's no means
6379 * of asking Windows to hold off on KEYDOWN
6380 * messages. We _have_ to buffer everything
6383 term_seen_key_event(term
);
6387 fprintf(stderr
, "sending ESC\n");
6389 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
6394 fprintf(stderr
, "sending %d bytes:", p
- output
);
6395 for (i
= 0; i
< p
- output
; i
++)
6396 fprintf(stderr
, " %02x", output
[i
]);
6397 fprintf(stderr
, "\n");
6399 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
6400 } else if (tlen
> 0) {
6402 fprintf(stderr
, "sending %d unichars:", tlen
);
6403 for (i
= 0; i
< tlen
; i
++)
6404 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
6405 fprintf(stderr
, "\n");
6407 luni_send(term
->ldisc
, text
, tlen
, 1);
6412 void term_nopaste(Terminal
*term
)
6414 if (term
->paste_len
== 0)
6416 sfree(term
->paste_buffer
);
6417 term
->paste_buffer
= NULL
;
6418 term
->paste_len
= 0;
6421 int term_paste_pending(Terminal
*term
)
6423 return term
->paste_len
!= 0;
6426 void term_paste(Terminal
*term
)
6428 long now
, paste_diff
;
6430 if (term
->paste_len
== 0)
6433 /* Don't wait forever to paste */
6434 if (term
->paste_hold
) {
6435 now
= GETTICKCOUNT();
6436 paste_diff
= now
- term
->last_paste
;
6437 if (paste_diff
>= 0 && paste_diff
< 450)
6440 term
->paste_hold
= 0;
6442 while (term
->paste_pos
< term
->paste_len
) {
6444 while (n
+ term
->paste_pos
< term
->paste_len
) {
6445 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
6449 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
6450 term
->paste_pos
+= n
;
6452 if (term
->paste_pos
< term
->paste_len
) {
6453 term
->paste_hold
= 1;
6457 sfree(term
->paste_buffer
);
6458 term
->paste_buffer
= NULL
;
6459 term
->paste_len
= 0;
6462 static void deselect(Terminal
*term
)
6464 term
->selstate
= NO_SELECTION
;
6465 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
6468 void term_deselect(Terminal
*term
)
6474 int term_ldisc(Terminal
*term
, int option
)
6476 if (option
== LD_ECHO
)
6477 return term
->term_echoing
;
6478 if (option
== LD_EDIT
)
6479 return term
->term_editing
;
6483 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
6485 bufchain_add(&term
->inbuf
, data
, len
);
6487 if (!term
->in_term_out
) {
6488 term
->in_term_out
= TRUE
;
6489 term_reset_cblink(term
);
6491 * During drag-selects, we do not process terminal input,
6492 * because the user will want the screen to hold still to
6495 if (term
->selstate
!= DRAGGING
)
6497 term
->in_term_out
= FALSE
;
6501 * term_out() always completely empties inbuf. Therefore,
6502 * there's no reason at all to return anything other than zero
6503 * from this function, because there _can't_ be a question of
6504 * the remote side needing to wait until term_out() has cleared
6507 * This is a slightly suboptimal way to deal with SSH-2 - in
6508 * principle, the window mechanism would allow us to continue
6509 * to accept data on forwarded ports and X connections even
6510 * while the terminal processing was going slowly - but we
6511 * can't do the 100% right thing without moving the terminal
6512 * processing into a separate thread, and that might hurt
6513 * portability. So we manage stdout buffering the old SSH-1 way:
6514 * if the terminal processing goes slowly, the whole SSH
6515 * connection stops accepting data until it's ready.
6517 * In practice, I can't imagine this causing serious trouble.
6523 * Write untrusted data to the terminal.
6524 * The only control character that should be honoured is \n (which
6525 * will behave as a CRLF).
6527 int term_data_untrusted(Terminal
*term
, const char *data
, int len
)
6530 /* FIXME: more sophisticated checking? */
6531 for (i
= 0; i
< len
; i
++) {
6532 if (data
[i
] == '\n')
6533 term_data(term
, 1, "\r\n", 2);
6534 else if (data
[i
] & 0x60)
6535 term_data(term
, 1, data
+ i
, 1);
6537 return 0; /* assumes that term_data() always returns 0 */
6540 void term_provide_logctx(Terminal
*term
, void *logctx
)
6542 term
->logctx
= logctx
;
6545 void term_set_focus(Terminal
*term
, int has_focus
)
6547 term
->has_focus
= has_focus
;
6548 term_schedule_cblink(term
);
6552 * Provide "auto" settings for remote tty modes, suitable for an
6553 * application with a terminal window.
6555 char *term_get_ttymode(Terminal
*term
, const char *mode
)
6558 if (strcmp(mode
, "ERASE") == 0) {
6559 val
= term
->bksp_is_delete ?
"^?" : "^H";
6561 /* FIXME: perhaps we should set ONLCR based on lfhascr as well? */
6562 /* FIXME: or ECHO and friends based on local echo state? */
6566 struct term_userpass_state
{
6568 int done_prompt
; /* printed out prompt yet? */
6569 size_t pos
; /* cursor position */
6573 * Process some terminal data in the course of username/password
6576 int term_get_userpass_input(Terminal
*term
, prompts_t
*p
,
6577 unsigned char *in
, int inlen
)
6579 struct term_userpass_state
*s
= (struct term_userpass_state
*)p
->data
;
6582 * First call. Set some stuff up.
6584 p
->data
= s
= snew(struct term_userpass_state
);
6587 /* We only print the `name' caption if we have to... */
6588 if (p
->name_reqd
&& p
->name
) {
6589 size_t l
= strlen(p
->name
);
6590 term_data_untrusted(term
, p
->name
, l
);
6591 if (p
->name
[l
-1] != '\n')
6592 term_data_untrusted(term
, "\n", 1);
6594 /* ...but we always print any `instruction'. */
6595 if (p
->instruction
) {
6596 size_t l
= strlen(p
->instruction
);
6597 term_data_untrusted(term
, p
->instruction
, l
);
6598 if (p
->instruction
[l
-1] != '\n')
6599 term_data_untrusted(term
, "\n", 1);
6602 * Zero all the results, in case we abort half-way through.
6606 for (i
= 0; i
< (int)p
->n_prompts
; i
++)
6607 memset(p
->prompts
[i
]->result
, 0, p
->prompts
[i
]->result_len
);
6611 while (s
->curr_prompt
< p
->n_prompts
) {
6613 prompt_t
*pr
= p
->prompts
[s
->curr_prompt
];
6614 int finished_prompt
= 0;
6616 if (!s
->done_prompt
) {
6617 term_data_untrusted(term
, pr
->prompt
, strlen(pr
->prompt
));
6622 /* Breaking out here ensures that the prompt is printed even
6623 * if we're now waiting for user data. */
6624 if (!in
|| !inlen
) break;
6626 /* FIXME: should we be using local-line-editing code instead? */
6627 while (!finished_prompt
&& inlen
) {
6633 term_data(term
, 0, "\r\n", 2);
6634 pr
->result
[s
->pos
] = '\0';
6635 pr
->result
[pr
->result_len
- 1] = '\0';
6636 /* go to next prompt, if any */
6639 finished_prompt
= 1; /* break out */
6645 term_data(term
, 0, "\b \b", 3);
6651 while (s
->pos
> 0) {
6653 term_data(term
, 0, "\b \b", 3);
6659 /* Immediate abort. */
6660 term_data(term
, 0, "\r\n", 2);
6663 return 0; /* user abort */
6666 * This simplistic check for printability is disabled
6667 * when we're doing password input, because some people
6668 * have control characters in their passwords.
6671 (c
>= ' ' && c
<= '~') ||
6672 ((unsigned char) c
>= 160))
6673 && s
->pos
< pr
->result_len
- 1) {
6674 pr
->result
[s
->pos
++] = c
;
6676 term_data(term
, 0, &c
, 1);
6684 if (s
->curr_prompt
< p
->n_prompts
) {
6685 return -1; /* more data required */
6689 return +1; /* all done */