10 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
11 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
12 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
13 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
15 /* Product-order comparisons for rectangular block selection. */
16 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
17 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
19 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
20 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
24 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
25 #define CL_VT100 0x0002 /* VT100 */
26 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
27 #define CL_VT102 0x0008 /* VT102 */
28 #define CL_VT220 0x0010 /* VT220 */
29 #define CL_VT320 0x0020 /* VT320 */
30 #define CL_VT420 0x0040 /* VT420 */
31 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
32 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
33 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
34 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
35 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
37 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
38 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
39 #define TM_VT102 (TM_VT100AVO|CL_VT102)
40 #define TM_VT220 (TM_VT102|CL_VT220)
41 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
42 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
44 #define TM_PUTTY (0xFFFF)
46 #define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
47 #define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
48 #define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
49 #define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
51 #define compatibility(x) \
52 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
53 term->termstate=TOPLEVEL; \
56 #define compatibility2(x,y) \
57 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
58 term->termstate=TOPLEVEL; \
62 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
64 const char sco2ansicolour
[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
66 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
67 const wchar_t sel_nl
[] = SEL_NL
;
70 * Fetch the character at a particular position in a line array,
71 * for purposes of `wordtype'. The reason this isn't just a simple
72 * array reference is that if the character we find is UCSWIDE,
73 * then we must look one space further to the left.
75 #define UCSGET(a, x) \
76 ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
79 * Detect the various aliases of U+0020 SPACE.
81 #define IS_SPACE_CHR(chr) \
82 ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
87 #define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
90 * Internal prototypes.
92 static void resizeline(Terminal
*, termline
*, int);
93 static termline
*lineptr(Terminal
*, int, int, int);
94 static void unlineptr(termline
*);
95 static void do_paint(Terminal
*, Context
, int);
96 static void erase_lots(Terminal
*, int, int, int);
97 static void swap_screen(Terminal
*, int, int, int);
98 static void update_sbar(Terminal
*);
99 static void deselect(Terminal
*);
100 static void term_print_finish(Terminal
*);
101 #ifdef OPTIMISE_SCROLL
102 static void scroll_display(Terminal
*, int, int, int);
103 #endif /* OPTIMISE_SCROLL */
105 static termline
*newline(Terminal
*term
, int cols
, int bce
)
110 line
= snew(termline
);
111 line
->chars
= snewn(cols
, termchar
);
112 for (j
= 0; j
< cols
; j
++)
113 line
->chars
[j
] = (bce ? term
->erase_char
: term
->basic_erase_char
);
114 line
->cols
= line
->size
= cols
;
115 line
->lattr
= LATTR_NORM
;
116 line
->temporary
= FALSE
;
122 static void freeline(termline
*line
)
130 static void unlineptr(termline
*line
)
137 * Diagnostic function: verify that a termline has a correct
138 * combining character structure.
140 * XXX-REMOVE-BEFORE-RELEASE: This is a performance-intensive
141 * check. Although it's currently really useful for getting all the
142 * bugs out of the new cc stuff, it will want to be absent when we
143 * make a proper release.
145 static void cc_check(termline
*line
)
147 unsigned char *flags
;
150 assert(line
->size
>= line
->cols
);
152 flags
= snewn(line
->size
, unsigned char);
154 for (i
= 0; i
< line
->size
; i
++)
155 flags
[i
] = (i
< line
->cols
);
157 for (i
= 0; i
< line
->cols
; i
++) {
159 while (line
->chars
[j
].cc_next
) {
160 j
+= line
->chars
[j
].cc_next
;
161 assert(j
>= line
->cols
&& j
< line
->size
);
170 assert(j
>= line
->cols
&& j
< line
->size
);
173 if (line
->chars
[j
].cc_next
)
174 j
+= line
->chars
[j
].cc_next
;
181 for (i
= 0; i
< line
->size
; i
++)
182 j
+= (flags
[i
] != 0);
184 assert(j
== line
->size
);
190 * Add a combining character to a character cell.
192 static void add_cc(termline
*line
, int col
, unsigned long chr
)
196 assert(col
>= 0 && col
< line
->cols
);
199 * Start by extending the cols array if the free list is empty.
201 if (!line
->cc_free
) {
203 line
->size
+= 16 + (line
->size
- line
->cols
) / 2;
204 line
->chars
= sresize(line
->chars
, line
->size
, termchar
);
206 while (n
< line
->size
) {
207 if (n
+1 < line
->size
)
208 line
->chars
[n
].cc_next
= 1;
210 line
->chars
[n
].cc_next
= 0;
216 * Now walk the cc list of the cell in question.
218 while (line
->chars
[col
].cc_next
)
219 col
+= line
->chars
[col
].cc_next
;
222 * `col' now points at the last cc currently in this cell; so
223 * we simply add another one.
225 newcc
= line
->cc_free
;
226 if (line
->chars
[newcc
].cc_next
)
227 line
->cc_free
= newcc
+ line
->chars
[newcc
].cc_next
;
230 line
->chars
[newcc
].cc_next
= 0;
231 line
->chars
[newcc
].chr
= chr
;
232 line
->chars
[col
].cc_next
= newcc
- col
;
234 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
238 * Clear the combining character list in a character cell.
240 static void clear_cc(termline
*line
, int col
)
242 int oldfree
, origcol
= col
;
244 assert(col
>= 0 && col
< line
->cols
);
246 if (!line
->chars
[col
].cc_next
)
247 return; /* nothing needs doing */
249 oldfree
= line
->cc_free
;
250 line
->cc_free
= col
+ line
->chars
[col
].cc_next
;
251 while (line
->chars
[col
].cc_next
)
252 col
+= line
->chars
[col
].cc_next
;
254 line
->chars
[col
].cc_next
= oldfree
- col
;
256 line
->chars
[col
].cc_next
= 0;
258 line
->chars
[origcol
].cc_next
= 0;
260 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
264 * Compare two character cells for equality. Special case required
265 * in do_paint() where we override what we expect the chr and attr
268 static int termchars_equal_override(termchar
*a
, termchar
*b
,
269 unsigned long bchr
, unsigned long battr
)
274 if (a
->attr
!= battr
)
276 while (a
->cc_next
|| b
->cc_next
) {
277 if (!a
->cc_next
|| !b
->cc_next
)
278 return FALSE
; /* one cc-list ends, other does not */
281 if (a
->chr
!= b
->chr
)
287 static int termchars_equal(termchar
*a
, termchar
*b
)
289 return termchars_equal_override(a
, b
, b
->chr
, b
->attr
);
293 * Copy a character cell. (Requires a pointer to the destination
294 * termline, so as to access its free list.)
296 static void copy_termchar(termline
*destline
, int x
, termchar
*src
)
298 clear_cc(destline
, x
);
300 destline
->chars
[x
] = *src
; /* copy everything except cc-list */
301 destline
->chars
[x
].cc_next
= 0; /* and make sure this is zero */
303 while (src
->cc_next
) {
305 add_cc(destline
, x
, src
->chr
);
308 cc_check(destline
); /* XXX-REMOVE-BEFORE-RELEASE */
312 * Move a character cell within its termline.
314 static void move_termchar(termline
*line
, termchar
*dest
, termchar
*src
)
316 /* First clear the cc list from the original char, just in case. */
317 clear_cc(line
, dest
- line
->chars
);
319 /* Move the character cell and adjust its cc_next. */
320 *dest
= *src
; /* copy everything except cc-list */
322 dest
->cc_next
= src
->cc_next
- (dest
-src
);
324 /* Ensure the original cell doesn't have a cc list. */
327 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
331 * Compress and decompress a termline into an RLE-based format for
332 * storing in scrollback. (Since scrollback almost never needs to
333 * be modified and exists in huge quantities, this is a sensible
334 * tradeoff, particularly since it allows us to continue adding
335 * features to the main termchar structure without proportionally
336 * bloating the terminal emulator's memory footprint unless those
337 * features are in constant use.)
343 static void add(struct buf
*b
, unsigned char c
)
345 if (b
->len
>= b
->size
) {
346 b
->size
= (b
->len
* 3 / 2) + 512;
347 b
->data
= sresize(b
->data
, b
->size
, unsigned char);
349 b
->data
[b
->len
++] = c
;
351 static int get(struct buf
*b
)
353 return b
->data
[b
->len
++];
355 static void makerle(struct buf
*b
, termline
*ldata
,
356 void (*makeliteral
)(struct buf
*b
, termchar
*c
,
357 unsigned long *state
))
359 int hdrpos
, hdrsize
, n
, prevlen
, prevpos
, thislen
, thispos
, prev2
;
360 termchar
*c
= ldata
->chars
;
361 unsigned long state
= 0, oldstate
;
368 prevlen
= prevpos
= 0;
373 makeliteral(b
, c
++, &state
);
374 thislen
= b
->len
- thispos
;
375 if (thislen
== prevlen
&&
376 !memcmp(b
->data
+ prevpos
, b
->data
+ thispos
, thislen
)) {
378 * This literal precisely matches the previous one.
379 * Turn it into a run if it's worthwhile.
381 * With one-byte literals, it costs us two bytes to
382 * encode a run, plus another byte to write the header
383 * to resume normal output; so a three-element run is
384 * neutral, and anything beyond that is unconditionally
385 * worthwhile. With two-byte literals or more, even a
388 if (thislen
> 1 || prev2
) {
392 * It's worth encoding a run. Start at prevpos,
393 * unless hdrsize==0 in which case we can back up
394 * another one and start by overwriting hdrpos.
397 hdrsize
--; /* remove the literal at prevpos */
401 prevpos
-= prevlen
;/* and possibly another one */
405 assert(prevpos
== hdrpos
+ 1);
407 b
->len
= prevpos
+prevlen
;
409 memmove(b
->data
+ prevpos
+1, b
->data
+ prevpos
, prevlen
);
411 b
->len
= prevpos
+prevlen
+1;
413 * Terminate the previous run of ordinary
416 assert(hdrsize
>= 1 && hdrsize
<= 128);
417 b
->data
[hdrpos
] = hdrsize
- 1;
420 runlen
= prev2 ?
3 : 2;
422 while (n
> 0 && runlen
< 129) {
426 makeliteral(b
, c
, &state
);
427 tmplen
= b
->len
- tmppos
;
429 if (tmplen
!= thislen
||
430 memcmp(b
->data
+ runpos
+1, b
->data
+ tmppos
, tmplen
)) {
432 break; /* run over */
437 assert(runlen
>= 2 && runlen
<= 129);
438 b
->data
[runpos
] = runlen
+ 0x80 - 2;
443 /* And ensure this run doesn't interfere with the next. */
444 prevlen
= prevpos
= 0;
450 * Just flag that the previous two literals were
451 * identical, in case we find a third identical one
452 * we want to turn into a run.
465 * This character isn't (yet) part of a run. Add it to
469 if (hdrsize
== 128) {
470 b
->data
[hdrpos
] = hdrsize
- 1;
474 prevlen
= prevpos
= 0;
483 assert(hdrsize
<= 128);
484 b
->data
[hdrpos
] = hdrsize
- 1;
489 static void makeliteral_chr(struct buf
*b
, termchar
*c
, unsigned long *state
)
492 * My encoding for characters is UTF-8-like, in that it stores
493 * 7-bit ASCII in one byte and uses high-bit-set bytes as
494 * introducers to indicate a longer sequence. However, it's
495 * unlike UTF-8 in that it doesn't need to be able to
496 * resynchronise, and therefore I don't want to waste two bits
497 * per byte on having recognisable continuation characters.
498 * Also I don't want to rule out the possibility that I may one
499 * day use values 0x80000000-0xFFFFFFFF for interesting
500 * purposes, so unlike UTF-8 I need a full 32-bit range.
501 * Accordingly, here is my encoding:
503 * 00000000-0000007F: 0xxxxxxx (but see below)
504 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
505 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
506 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
507 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
509 * (`Z' is like `x' but is always going to be zero since the
510 * values I'm encoding don't go above 2^32. In principle the
511 * five-byte form of the encoding could extend to 2^35, and
512 * there could be six-, seven-, eight- and nine-byte forms as
513 * well to allow up to 64-bit values to be encoded. But that's
514 * completely unnecessary for these purposes!)
516 * The encoding as written above would be very simple, except
517 * that 7-bit ASCII can occur in several different ways in the
518 * terminal data; sometimes it crops up in the D800 page
519 * (CSET_ASCII) but at other times it's in the 0000 page (real
520 * Unicode). Therefore, this encoding is actually _stateful_:
521 * the one-byte encoding of 00-7F actually indicates `reuse the
522 * upper three bytes of the last character', and to encode an
523 * absolute value of 00-7F you need to use the two-byte form
526 if ((c
->chr
& ~0x7F) == *state
) {
527 add(b
, (unsigned char)(c
->chr
& 0x7F));
528 } else if (c
->chr
< 0x4000) {
529 add(b
, (unsigned char)(((c
->chr
>> 8) & 0x3F) | 0x80));
530 add(b
, (unsigned char)(c
->chr
& 0xFF));
531 } else if (c
->chr
< 0x200000) {
532 add(b
, (unsigned char)(((c
->chr
>> 16) & 0x1F) | 0xC0));
533 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
534 add(b
, (unsigned char)(c
->chr
& 0xFF));
535 } else if (c
->chr
< 0x10000000) {
536 add(b
, (unsigned char)(((c
->chr
>> 24) & 0x0F) | 0xE0));
537 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
538 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
539 add(b
, (unsigned char)(c
->chr
& 0xFF));
542 add(b
, (unsigned char)((c
->chr
>> 24) & 0xFF));
543 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
544 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
545 add(b
, (unsigned char)(c
->chr
& 0xFF));
547 *state
= c
->chr
& ~0xFF;
549 static void makeliteral_attr(struct buf
*b
, termchar
*c
, unsigned long *state
)
552 * My encoding for attributes is 16-bit-granular and assumes
553 * that the top bit of the word is never required. I either
554 * store a two-byte value with the top bit clear (indicating
555 * just that value), or a four-byte value with the top bit set
556 * (indicating the same value with its top bit clear).
558 if (c
->attr
< 0x8000) {
559 add(b
, (unsigned char)((c
->attr
>> 8) & 0xFF));
560 add(b
, (unsigned char)(c
->attr
& 0xFF));
562 add(b
, (unsigned char)(((c
->attr
>> 24) & 0x7F) | 0x80));
563 add(b
, (unsigned char)((c
->attr
>> 16) & 0xFF));
564 add(b
, (unsigned char)((c
->attr
>> 8) & 0xFF));
565 add(b
, (unsigned char)(c
->attr
& 0xFF));
568 static void makeliteral_cc(struct buf
*b
, termchar
*c
, unsigned long *state
)
571 * For combining characters, I just encode a bunch of ordinary
572 * chars using makeliteral_chr, and terminate with a \0
573 * character (which I know won't come up as a combining char
576 * I don't use the stateful encoding in makeliteral_chr.
578 unsigned long zstate
;
587 makeliteral_chr(b
, c
, &zstate
);
592 makeliteral_chr(b
, &z
, &zstate
);
595 static termline
*decompressline(unsigned char *data
, int *bytes_used
);
597 static unsigned char *compressline(termline
*ldata
)
599 struct buf buffer
= { NULL
, 0, 0 }, *b
= &buffer
;
602 * First, store the column count, 7 bits at a time, least
603 * significant `digit' first, with the high bit set on all but
609 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
612 add(b
, (unsigned char)(n
));
616 * Next store the lattrs; same principle.
619 int n
= ldata
->lattr
;
621 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
624 add(b
, (unsigned char)(n
));
628 * Now we store a sequence of separate run-length encoded
629 * fragments, each containing exactly as many symbols as there
630 * are columns in the ldata.
632 * All of these have a common basic format:
634 * - a byte 00-7F indicates that X+1 literals follow it
635 * - a byte 80-FF indicates that a single literal follows it
636 * and expects to be repeated (X-0x80)+2 times.
638 * The format of the `literals' varies between the fragments.
640 makerle(b
, ldata
, makeliteral_chr
);
641 makerle(b
, ldata
, makeliteral_attr
);
642 makerle(b
, ldata
, makeliteral_cc
);
645 * Diagnostics: ensure that the compressed data really does
646 * decompress to the right thing.
648 * XXX-REMOVE-BEFORE-RELEASE: This is a bit performance-heavy
649 * to be leaving in production code.
651 #ifndef CHECK_SB_COMPRESSION
657 #ifdef DIAGNOSTIC_SB_COMPRESSION
658 for (i
= 0; i
< b
->len
; i
++) {
659 printf(" %02x ", b
->data
[i
]);
664 dcl
= decompressline(b
->data
, &dused
);
665 assert(b
->len
== dused
);
666 assert(ldata
->cols
== dcl
->cols
);
667 assert(ldata
->lattr
== dcl
->lattr
);
668 for (i
= 0; i
< ldata
->cols
; i
++)
669 assert(termchars_equal(&ldata
->chars
[i
], &dcl
->chars
[i
]));
671 #ifdef DIAGNOSTIC_SB_COMPRESSION
672 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
673 ldata
->cols
, 4 * ldata
->cols
, dused
,
674 (double)dused
/ (4 * ldata
->cols
));
682 * Trim the allocated memory so we don't waste any, and return.
684 return sresize(b
->data
, b
->len
, unsigned char);
687 static void readrle(struct buf
*b
, termline
*ldata
,
688 void (*readliteral
)(struct buf
*b
, termchar
*c
,
689 termline
*ldata
, unsigned long *state
))
692 unsigned long state
= 0;
694 while (n
< ldata
->cols
) {
700 int pos
= b
->len
, count
= hdr
+ 2 - 0x80;
702 assert(n
< ldata
->cols
);
704 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
708 /* Just a sequence of consecutive literals. */
712 assert(n
< ldata
->cols
);
713 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
719 assert(n
== ldata
->cols
);
721 static void readliteral_chr(struct buf
*b
, termchar
*c
, termline
*ldata
,
722 unsigned long *state
)
727 * 00000000-0000007F: 0xxxxxxx
728 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
729 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
730 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
731 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
736 c
->chr
= byte
| *state
;
737 } else if (byte
< 0xC0) {
738 c
->chr
= (byte
&~ 0xC0) << 8;
740 } else if (byte
< 0xE0) {
741 c
->chr
= (byte
&~ 0xE0) << 16;
742 c
->chr
|= get(b
) << 8;
744 } else if (byte
< 0xF0) {
745 c
->chr
= (byte
&~ 0xF0) << 24;
746 c
->chr
|= get(b
) << 16;
747 c
->chr
|= get(b
) << 8;
750 assert(byte
== 0xF0);
751 c
->chr
= get(b
) << 24;
752 c
->chr
|= get(b
) << 16;
753 c
->chr
|= get(b
) << 8;
756 *state
= c
->chr
& ~0xFF;
758 static void readliteral_attr(struct buf
*b
, termchar
*c
, termline
*ldata
,
759 unsigned long *state
)
774 static void readliteral_cc(struct buf
*b
, termchar
*c
, termline
*ldata
,
775 unsigned long *state
)
778 unsigned long zstate
;
779 int x
= c
- ldata
->chars
;
785 readliteral_chr(b
, &n
, ldata
, &zstate
);
788 add_cc(ldata
, x
, n
.chr
);
792 static termline
*decompressline(unsigned char *data
, int *bytes_used
)
794 int ncols
, byte
, shift
;
795 struct buf buffer
, *b
= &buffer
;
802 * First read in the column count.
807 ncols
|= (byte
& 0x7F) << shift
;
809 } while (byte
& 0x80);
812 * Now create the output termline.
814 ldata
= snew(termline
);
815 ldata
->chars
= snewn(ncols
, termchar
);
816 ldata
->cols
= ldata
->size
= ncols
;
817 ldata
->temporary
= TRUE
;
821 * We must set all the cc pointers in ldata->chars to 0 right
822 * now, so that cc diagnostics that verify the integrity of the
823 * whole line will make sense while we're in the middle of
828 for (i
= 0; i
< ldata
->cols
; i
++)
829 ldata
->chars
[i
].cc_next
= 0;
833 * Now read in the lattr.
835 ldata
->lattr
= shift
= 0;
838 ldata
->lattr
|= (byte
& 0x7F) << shift
;
840 } while (byte
& 0x80);
843 * Now we read in each of the RLE streams in turn.
845 readrle(b
, ldata
, readliteral_chr
);
846 readrle(b
, ldata
, readliteral_attr
);
847 readrle(b
, ldata
, readliteral_cc
);
849 /* Return the number of bytes read, for diagnostic purposes. */
851 *bytes_used
= b
->len
;
857 * Resize a line to make it `cols' columns wide.
859 static void resizeline(Terminal
*term
, termline
*line
, int cols
)
863 if (line
->cols
!= cols
) {
865 oldcols
= line
->cols
;
868 * This line is the wrong length, which probably means it
869 * hasn't been accessed since a resize. Resize it now.
871 * First, go through all the characters that will be thrown
872 * out in the resize (if we're shrinking the line) and
873 * return their cc lists to the cc free list.
875 for (i
= cols
; i
< oldcols
; i
++)
879 * If we're shrinking the line, we now bodily move the
880 * entire cc section from where it started to where it now
881 * needs to be. (We have to do this before the resize, so
882 * that the data we're copying is still there. However, if
883 * we're expanding, we have to wait until _after_ the
884 * resize so that the space we're copying into is there.)
887 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
888 (line
->size
- line
->cols
) * TSIZE
);
891 * Now do the actual resize, leaving the _same_ amount of
892 * cc space as there was to begin with.
894 line
->size
+= cols
- oldcols
;
895 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
899 * If we're expanding the line, _now_ we move the cc
903 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
904 (line
->size
- line
->cols
) * TSIZE
);
907 * Go through what's left of the original line, and adjust
908 * the first cc_next pointer in each list. (All the
909 * subsequent ones are still valid because they are
910 * relative offsets within the cc block.) Also do the same
911 * to the head of the cc_free list.
913 for (i
= 0; i
< oldcols
&& i
< cols
; i
++)
914 if (line
->chars
[i
].cc_next
)
915 line
->chars
[i
].cc_next
+= cols
- oldcols
;
917 line
->cc_free
+= cols
- oldcols
;
920 * And finally fill in the new space with erase chars. (We
921 * don't have to worry about cc lists here, because we
922 * _know_ the erase char doesn't have one.)
924 for (i
= oldcols
; i
< cols
; i
++)
925 line
->chars
[i
] = term
->basic_erase_char
;
927 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
932 * Get the number of lines in the scrollback.
934 static int sblines(Terminal
*term
)
936 int sblines
= count234(term
->scrollback
);
937 if (term
->cfg
.erase_to_scrollback
&&
938 term
->alt_which
&& term
->alt_screen
) {
939 sblines
+= term
->alt_sblines
;
945 * Retrieve a line of the screen or of the scrollback, according to
946 * whether the y coordinate is non-negative or negative
949 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
956 whichtree
= term
->screen
;
963 if (term
->cfg
.erase_to_scrollback
&&
964 term
->alt_which
&& term
->alt_screen
) {
965 altlines
= term
->alt_sblines
;
968 whichtree
= term
->scrollback
;
969 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
971 whichtree
= term
->alt_screen
;
972 treeindex
= y
+ term
->alt_sblines
;
973 /* treeindex = y + count234(term->alt_screen); */
976 if (whichtree
== term
->scrollback
) {
977 unsigned char *cline
= index234(whichtree
, treeindex
);
978 line
= decompressline(cline
, NULL
);
980 line
= index234(whichtree
, treeindex
);
983 /* We assume that we don't screw up and retrieve something out of range. */
984 assert(line
!= NULL
);
986 resizeline(term
, line
, term
->cols
);
987 /* FIXME: should we sort the compressed scrollback out here? */
992 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
993 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
995 static void term_schedule_tblink(Terminal
*term
);
996 static void term_schedule_cblink(Terminal
*term
);
998 static void term_timer(void *ctx
, long now
)
1000 Terminal
*term
= (Terminal
*)ctx
;
1003 if (term
->tblink_pending
&& now
- term
->next_tblink
>= 0) {
1004 term
->tblinker
= !term
->tblinker
;
1005 term
->tblink_pending
= FALSE
;
1006 term_schedule_tblink(term
);
1010 if (term
->cblink_pending
&& now
- term
->next_cblink
>= 0) {
1011 term
->cblinker
= !term
->cblinker
;
1012 term
->cblink_pending
= FALSE
;
1013 term_schedule_cblink(term
);
1017 if (term
->in_vbell
&& now
- term
->vbell_end
>= 0) {
1018 term
->in_vbell
= FALSE
;
1023 (term
->window_update_pending
&& now
- term
->next_update
>= 0))
1028 * Call this whenever the terminal window state changes, to queue
1031 static void seen_disp_event(Terminal
*term
)
1033 term
->seen_disp_event
= TRUE
; /* for scrollback-reset-on-activity */
1034 if (!term
->window_update_pending
) {
1035 term
->window_update_pending
= TRUE
;
1036 term
->next_update
= schedule_timer(UPDATE_DELAY
, term_timer
, term
);
1041 * Call when the terminal's blinking-text settings change, or when
1042 * a text blink has just occurred.
1044 static void term_schedule_tblink(Terminal
*term
)
1046 if (term
->tblink_pending
)
1047 return; /* already well in hand */
1048 if (term
->blink_is_real
) {
1049 term
->next_tblink
= schedule_timer(TBLINK_DELAY
, term_timer
, term
);
1050 term
->tblink_pending
= TRUE
;
1052 term
->tblinker
= 1; /* reset when not in use */
1053 term
->tblink_pending
= FALSE
;
1058 * Likewise with cursor blinks.
1060 static void term_schedule_cblink(Terminal
*term
)
1062 if (term
->cblink_pending
)
1063 return; /* already well in hand */
1064 if (term
->cfg
.blink_cur
) {
1065 term
->next_cblink
= schedule_timer(CBLINK_DELAY
, term_timer
, term
);
1066 term
->cblink_pending
= TRUE
;
1068 term
->cblinker
= 1; /* reset when not in use */
1069 term
->cblink_pending
= FALSE
;
1074 * Call to reset cursor blinking on new output.
1076 static void term_reset_cblink(Terminal
*term
)
1078 seen_disp_event(term
);
1080 term
->cblink_pending
= FALSE
;
1081 term_schedule_cblink(term
);
1085 * Call to begin a visual bell.
1087 static void term_schedule_vbell(Terminal
*term
, int already_started
,
1090 long ticks_already_gone
;
1092 if (already_started
)
1093 ticks_already_gone
= GETTICKCOUNT() - startpoint
;
1095 ticks_already_gone
= 0;
1097 if (ticks_already_gone
< VBELL_DELAY
) {
1098 term
->in_vbell
= TRUE
;
1099 term
->vbell_end
= schedule_timer(VBELL_DELAY
- ticks_already_gone
,
1102 term
->in_vbell
= FALSE
;
1107 * Set up power-on settings for the terminal.
1109 static void power_on(Terminal
*term
)
1111 term
->curs
.x
= term
->curs
.y
= 0;
1112 term
->alt_x
= term
->alt_y
= 0;
1113 term
->savecurs
.x
= term
->savecurs
.y
= 0;
1114 term
->alt_t
= term
->marg_t
= 0;
1115 if (term
->rows
!= -1)
1116 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1118 term
->alt_b
= term
->marg_b
= 0;
1119 if (term
->cols
!= -1) {
1121 for (i
= 0; i
< term
->cols
; i
++)
1122 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1124 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1125 term
->alt_ins
= term
->insert
= FALSE
;
1126 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
1127 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1128 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
1129 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
1130 term
->utf_state
= 0;
1131 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
1132 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= CSET_ASCII
;
1134 term
->in_vbell
= FALSE
;
1135 term
->cursor_on
= 1;
1136 term
->big_cursor
= 0;
1137 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
1138 term
->term_editing
= term
->term_echoing
= FALSE
;
1139 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1140 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1141 term
->use_bce
= term
->cfg
.bce
;
1142 term
->blink_is_real
= term
->cfg
.blinktext
;
1143 term
->erase_char
= term
->basic_erase_char
;
1144 term
->alt_which
= 0;
1145 term_print_finish(term
);
1148 for (i
= 0; i
< 256; i
++)
1149 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1152 swap_screen(term
, 1, FALSE
, FALSE
);
1153 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1154 swap_screen(term
, 0, FALSE
, FALSE
);
1155 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1157 term_schedule_tblink(term
);
1158 term_schedule_cblink(term
);
1162 * Force a screen update.
1164 void term_update(Terminal
*term
)
1168 term
->window_update_pending
= FALSE
;
1170 ctx
= get_ctx(term
->frontend
);
1172 int need_sbar_update
= term
->seen_disp_event
;
1173 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1174 term
->disptop
= 0; /* return to main screen */
1175 term
->seen_disp_event
= 0;
1176 need_sbar_update
= TRUE
;
1179 if (need_sbar_update
)
1181 do_paint(term
, ctx
, TRUE
);
1182 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1188 * Called from front end when a keypress occurs, to trigger
1189 * anything magical that needs to happen in that situation.
1191 void term_seen_key_event(Terminal
*term
)
1194 * On any keypress, clear the bell overload mechanism
1195 * completely, on the grounds that large numbers of
1196 * beeps coming from deliberate key action are likely
1197 * to be intended (e.g. beeps from filename completion
1198 * blocking repeatedly).
1200 term
->beep_overloaded
= FALSE
;
1201 while (term
->beephead
) {
1202 struct beeptime
*tmp
= term
->beephead
;
1203 term
->beephead
= tmp
->next
;
1206 term
->beeptail
= NULL
;
1210 * Reset the scrollback on keypress, if we're doing that.
1212 if (term
->cfg
.scroll_on_key
) {
1213 term
->disptop
= 0; /* return to main screen */
1214 seen_disp_event(term
);
1219 * Same as power_on(), but an external function.
1221 void term_pwron(Terminal
*term
)
1224 if (term
->ldisc
) /* cause ldisc to notice changes */
1225 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1231 static void set_erase_char(Terminal
*term
)
1233 term
->erase_char
= term
->basic_erase_char
;
1235 term
->erase_char
.attr
= (term
->curr_attr
&
1236 (ATTR_FGMASK
| ATTR_BGMASK
));
1240 * When the user reconfigures us, we need to check the forbidden-
1241 * alternate-screen config option, disable raw mouse mode if the
1242 * user has disabled mouse reporting, and abandon a print job if
1243 * the user has disabled printing.
1245 void term_reconfig(Terminal
*term
, Config
*cfg
)
1248 * Before adopting the new config, check all those terminal
1249 * settings which control power-on defaults; and if they've
1250 * changed, we will modify the current state as well as the
1251 * default one. The full list is: Auto wrap mode, DEC Origin
1252 * Mode, BCE, blinking text, character classes.
1254 int reset_wrap
, reset_decom
, reset_bce
, reset_tblink
, reset_charclass
;
1257 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1258 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1259 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1260 reset_tblink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1261 reset_charclass
= 0;
1262 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1263 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1264 reset_charclass
= 1;
1267 * If the bidi or shaping settings have changed, flush the bidi
1270 if (term
->cfg
.arabicshaping
!= cfg
->arabicshaping
||
1271 term
->cfg
.bidi
!= cfg
->bidi
) {
1272 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1273 sfree(term
->pre_bidi_cache
[i
].chars
);
1274 sfree(term
->post_bidi_cache
[i
].chars
);
1275 term
->pre_bidi_cache
[i
].width
= -1;
1276 term
->pre_bidi_cache
[i
].chars
= NULL
;
1277 term
->post_bidi_cache
[i
].width
= -1;
1278 term
->post_bidi_cache
[i
].chars
= NULL
;
1282 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1285 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1287 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1289 term
->use_bce
= term
->cfg
.bce
;
1290 set_erase_char(term
);
1293 term
->blink_is_real
= term
->cfg
.blinktext
;
1295 if (reset_charclass
)
1296 for (i
= 0; i
< 256; i
++)
1297 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1299 if (term
->cfg
.no_alt_screen
)
1300 swap_screen(term
, 0, FALSE
, FALSE
);
1301 if (term
->cfg
.no_mouse_rep
) {
1302 term
->xterm_mouse
= 0;
1303 set_raw_mouse_mode(term
->frontend
, 0);
1305 if (term
->cfg
.no_remote_charset
) {
1306 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1307 term
->sco_acs
= term
->alt_sco_acs
= 0;
1310 if (!*term
->cfg
.printer
) {
1311 term_print_finish(term
);
1313 term_schedule_tblink(term
);
1314 term_schedule_cblink(term
);
1318 * Clear the scrollback.
1320 void term_clrsb(Terminal
*term
)
1324 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1325 sfree(line
); /* this is compressed data, not a termline */
1327 term
->tempsblines
= 0;
1328 term
->alt_sblines
= 0;
1333 * Initialise the terminal.
1335 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1341 * Allocate a new Terminal structure and initialise the fields
1344 term
= snew(Terminal
);
1345 term
->frontend
= frontend
;
1346 term
->ucsdata
= ucsdata
;
1347 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1348 term
->logctx
= NULL
;
1349 term
->compatibility_level
= TM_PUTTY
;
1350 strcpy(term
->id_string
, "\033[?6c");
1351 term
->cblink_pending
= term
->tblink_pending
= FALSE
;
1352 term
->paste_buffer
= NULL
;
1353 term
->paste_len
= 0;
1354 term
->last_paste
= 0;
1355 bufchain_init(&term
->inbuf
);
1356 bufchain_init(&term
->printer_buf
);
1357 term
->printing
= term
->only_printing
= FALSE
;
1358 term
->print_job
= NULL
;
1359 term
->vt52_mode
= FALSE
;
1360 term
->cr_lf_return
= FALSE
;
1361 term
->seen_disp_event
= FALSE
;
1362 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1363 term
->reset_132
= FALSE
;
1364 term
->cblinker
= term
->tblinker
= 0;
1365 term
->has_focus
= 1;
1366 term
->repeat_off
= FALSE
;
1367 term
->termstate
= TOPLEVEL
;
1368 term
->selstate
= NO_SELECTION
;
1371 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1372 term
->tempsblines
= 0;
1373 term
->alt_sblines
= 0;
1375 term
->disptext
= NULL
;
1376 term
->dispcursx
= term
->dispcursy
= -1;
1379 term
->rows
= term
->cols
= -1;
1381 term
->beephead
= term
->beeptail
= NULL
;
1382 #ifdef OPTIMISE_SCROLL
1383 term
->scrollhead
= term
->scrolltail
= NULL
;
1384 #endif /* OPTIMISE_SCROLL */
1386 term
->lastbeep
= FALSE
;
1387 term
->beep_overloaded
= FALSE
;
1388 term
->attr_mask
= 0xffffffff;
1389 term
->resize_fn
= NULL
;
1390 term
->resize_ctx
= NULL
;
1391 term
->in_term_out
= FALSE
;
1393 term
->ltemp_size
= 0;
1394 term
->wcFrom
= NULL
;
1396 term
->wcFromTo_size
= 0;
1398 term
->window_update_pending
= FALSE
;
1400 term
->bidi_cache_size
= 0;
1401 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1404 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1405 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1406 term
->basic_erase_char
.cc_next
= 0;
1407 term
->erase_char
= term
->basic_erase_char
;
1412 void term_free(Terminal
*term
)
1415 struct beeptime
*beep
;
1418 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1419 sfree(line
); /* compressed data, not a termline */
1420 freetree234(term
->scrollback
);
1421 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1423 freetree234(term
->screen
);
1424 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1426 freetree234(term
->alt_screen
);
1427 if (term
->disptext
) {
1428 for (i
= 0; i
< term
->rows
; i
++)
1429 freeline(term
->disptext
[i
]);
1431 sfree(term
->disptext
);
1432 while (term
->beephead
) {
1433 beep
= term
->beephead
;
1434 term
->beephead
= beep
->next
;
1437 bufchain_clear(&term
->inbuf
);
1439 printer_finish_job(term
->print_job
);
1440 bufchain_clear(&term
->printer_buf
);
1441 sfree(term
->paste_buffer
);
1443 sfree(term
->wcFrom
);
1446 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1447 sfree(term
->pre_bidi_cache
[i
].chars
);
1448 sfree(term
->post_bidi_cache
[i
].chars
);
1450 sfree(term
->pre_bidi_cache
);
1451 sfree(term
->post_bidi_cache
);
1453 expire_timer_context(term
);
1459 * Set up the terminal for a given size.
1461 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1464 termline
**newdisp
, *line
;
1465 int i
, j
, oldrows
= term
->rows
;
1467 int save_alt_which
= term
->alt_which
;
1469 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1470 newsavelines
== term
->savelines
)
1471 return; /* nothing to do */
1474 swap_screen(term
, 0, FALSE
, FALSE
);
1476 term
->alt_t
= term
->marg_t
= 0;
1477 term
->alt_b
= term
->marg_b
= newrows
- 1;
1479 if (term
->rows
== -1) {
1480 term
->scrollback
= newtree234(NULL
);
1481 term
->screen
= newtree234(NULL
);
1482 term
->tempsblines
= 0;
1487 * Resize the screen and scrollback. We only need to shift
1488 * lines around within our data structures, because lineptr()
1489 * will take care of resizing each individual line if
1492 * - If the new screen is longer, we shunt lines in from temporary
1493 * scrollback if possible, otherwise we add new blank lines at
1496 * - If the new screen is shorter, we remove any blank lines at
1497 * the bottom if possible, otherwise shunt lines above the cursor
1498 * to scrollback if possible, otherwise delete lines below the
1501 * - Then, if the new scrollback length is less than the
1502 * amount of scrollback we actually have, we must throw some
1505 sblen
= count234(term
->scrollback
);
1506 /* Do this loop to expand the screen if newrows > rows */
1507 assert(term
->rows
== count234(term
->screen
));
1508 while (term
->rows
< newrows
) {
1509 if (term
->tempsblines
> 0) {
1510 unsigned char *cline
;
1511 /* Insert a line from the scrollback at the top of the screen. */
1512 assert(sblen
>= term
->tempsblines
);
1513 cline
= delpos234(term
->scrollback
, --sblen
);
1514 line
= decompressline(cline
, NULL
);
1516 line
->temporary
= FALSE
; /* reconstituted line is now real */
1517 term
->tempsblines
-= 1;
1518 addpos234(term
->screen
, line
, 0);
1520 term
->savecurs
.y
+= 1;
1522 /* Add a new blank line at the bottom of the screen. */
1523 line
= newline(term
, newcols
, FALSE
);
1524 addpos234(term
->screen
, line
, count234(term
->screen
));
1528 /* Do this loop to shrink the screen if newrows < rows */
1529 while (term
->rows
> newrows
) {
1530 if (term
->curs
.y
< term
->rows
- 1) {
1531 /* delete bottom row, unless it contains the cursor */
1532 sfree(delpos234(term
->screen
, term
->rows
- 1));
1534 /* push top row to scrollback */
1535 line
= delpos234(term
->screen
, 0);
1536 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1538 term
->tempsblines
+= 1;
1540 term
->savecurs
.y
-= 1;
1544 assert(term
->rows
== newrows
);
1545 assert(count234(term
->screen
) == newrows
);
1547 /* Delete any excess lines from the scrollback. */
1548 while (sblen
> newsavelines
) {
1549 line
= delpos234(term
->scrollback
, 0);
1553 if (sblen
< term
->tempsblines
)
1554 term
->tempsblines
= sblen
;
1555 assert(count234(term
->scrollback
) <= newsavelines
);
1556 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1559 /* Make a new displayed text buffer. */
1560 newdisp
= snewn(newrows
, termline
*);
1561 for (i
= 0; i
< newrows
; i
++) {
1562 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1563 for (j
= 0; j
< newcols
; j
++)
1564 newdisp
[i
]->chars
[j
].attr
= ATTR_INVALID
;
1566 if (term
->disptext
) {
1567 for (i
= 0; i
< oldrows
; i
++)
1568 freeline(term
->disptext
[i
]);
1570 sfree(term
->disptext
);
1571 term
->disptext
= newdisp
;
1572 term
->dispcursx
= term
->dispcursy
= -1;
1574 /* Make a new alternate screen. */
1575 newalt
= newtree234(NULL
);
1576 for (i
= 0; i
< newrows
; i
++) {
1577 line
= newline(term
, newcols
, TRUE
);
1578 addpos234(newalt
, line
, i
);
1580 if (term
->alt_screen
) {
1581 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1583 freetree234(term
->alt_screen
);
1585 term
->alt_screen
= newalt
;
1586 term
->alt_sblines
= 0;
1588 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1591 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1592 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1595 /* Check that the cursor positions are still valid. */
1596 if (term
->savecurs
.y
< 0)
1597 term
->savecurs
.y
= 0;
1598 if (term
->savecurs
.y
>= newrows
)
1599 term
->savecurs
.y
= newrows
- 1;
1600 if (term
->curs
.y
< 0)
1602 if (term
->curs
.y
>= newrows
)
1603 term
->curs
.y
= newrows
- 1;
1604 if (term
->curs
.x
>= newcols
)
1605 term
->curs
.x
= newcols
- 1;
1606 term
->alt_x
= term
->alt_y
= 0;
1607 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1609 term
->rows
= newrows
;
1610 term
->cols
= newcols
;
1611 term
->savelines
= newsavelines
;
1613 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1617 if (term
->resize_fn
)
1618 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1622 * Hand a function and context pointer to the terminal which it can
1623 * use to notify a back end of resizes.
1625 void term_provide_resize_fn(Terminal
*term
,
1626 void (*resize_fn
)(void *, int, int),
1629 term
->resize_fn
= resize_fn
;
1630 term
->resize_ctx
= resize_ctx
;
1631 if (term
->cols
> 0 && term
->rows
> 0)
1632 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1635 /* Find the bottom line on the screen that has any content.
1636 * If only the top line has content, returns 0.
1637 * If no lines have content, return -1.
1639 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1642 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1643 termline
*line
= index234(screen
, i
);
1645 for (j
= 0; j
< line
->cols
; j
++)
1646 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1648 if (j
!= line
->cols
) break;
1654 * Swap screens. If `reset' is TRUE and we have been asked to
1655 * switch to the alternate screen, we must bring most of its
1656 * configuration from the main screen and erase the contents of the
1657 * alternate screen completely. (This is even true if we're already
1658 * on it! Blame xterm.)
1660 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1666 reset
= FALSE
; /* do no weird resetting if which==0 */
1668 if (which
!= term
->alt_which
) {
1669 term
->alt_which
= which
;
1671 ttr
= term
->alt_screen
;
1672 term
->alt_screen
= term
->screen
;
1674 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1676 if (!reset
&& !keep_cur_pos
)
1677 term
->curs
.x
= term
->alt_x
;
1680 if (!reset
&& !keep_cur_pos
)
1681 term
->curs
.y
= term
->alt_y
;
1684 if (!reset
) term
->marg_t
= term
->alt_t
;
1687 if (!reset
) term
->marg_b
= term
->alt_b
;
1690 if (!reset
) term
->dec_om
= term
->alt_om
;
1693 if (!reset
) term
->wrap
= term
->alt_wrap
;
1696 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1697 term
->alt_wnext
= t
;
1699 if (!reset
) term
->insert
= term
->alt_ins
;
1702 if (!reset
) term
->cset
= term
->alt_cset
;
1705 if (!reset
) term
->utf
= term
->alt_utf
;
1708 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1709 term
->alt_sco_acs
= t
;
1712 if (reset
&& term
->screen
) {
1714 * Yes, this _is_ supposed to honour background-colour-erase.
1716 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1721 * Update the scroll bar.
1723 static void update_sbar(Terminal
*term
)
1725 int nscroll
= sblines(term
);
1726 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1727 nscroll
+ term
->disptop
, term
->rows
);
1731 * Check whether the region bounded by the two pointers intersects
1732 * the scroll region, and de-select the on-screen selection if so.
1734 static void check_selection(Terminal
*term
, pos from
, pos to
)
1736 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1741 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1742 * for backward.) `sb' is TRUE if the scrolling is permitted to
1743 * affect the scrollback buffer.
1745 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1748 int i
, seltop
, olddisptop
, shift
;
1750 if (topline
!= 0 || term
->alt_which
!= 0)
1753 olddisptop
= term
->disptop
;
1757 line
= delpos234(term
->screen
, botline
);
1758 resizeline(term
, line
, term
->cols
);
1759 for (i
= 0; i
< term
->cols
; i
++)
1760 copy_termchar(line
, i
, &term
->erase_char
);
1761 line
->lattr
= LATTR_NORM
;
1762 addpos234(term
->screen
, line
, topline
);
1764 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1766 if (term
->selstart
.y
> botline
) {
1767 term
->selstart
.y
= botline
+ 1;
1768 term
->selstart
.x
= 0;
1771 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1773 if (term
->selend
.y
> botline
) {
1774 term
->selend
.y
= botline
+ 1;
1783 line
= delpos234(term
->screen
, topline
);
1784 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
1785 if (sb
&& term
->savelines
> 0) {
1786 int sblen
= count234(term
->scrollback
);
1788 * We must add this line to the scrollback. We'll
1789 * remove a line from the top of the scrollback if
1790 * the scrollback is full.
1792 if (sblen
== term
->savelines
) {
1793 unsigned char *cline
;
1796 cline
= delpos234(term
->scrollback
, 0);
1799 term
->tempsblines
+= 1;
1801 addpos234(term
->scrollback
, compressline(line
), sblen
);
1803 /* now `line' itself can be reused as the bottom line */
1806 * If the user is currently looking at part of the
1807 * scrollback, and they haven't enabled any options
1808 * that are going to reset the scrollback as a
1809 * result of this movement, then the chances are
1810 * they'd like to keep looking at the same line. So
1811 * we move their viewpoint at the same rate as the
1812 * scroll, at least until their viewpoint hits the
1813 * top end of the scrollback buffer, at which point
1814 * we don't have the choice any more.
1816 * Thanks to Jan Holmen Holsten for the idea and
1817 * initial implementation.
1819 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1822 resizeline(term
, line
, term
->cols
);
1823 for (i
= 0; i
< term
->cols
; i
++)
1824 copy_termchar(line
, i
, &term
->erase_char
);
1825 line
->lattr
= LATTR_NORM
;
1826 addpos234(term
->screen
, line
, botline
);
1829 * If the selection endpoints move into the scrollback,
1830 * we keep them moving until they hit the top. However,
1831 * of course, if the line _hasn't_ moved into the
1832 * scrollback then we don't do this, and cut them off
1833 * at the top of the scroll region.
1835 * This applies to selstart and selend (for an existing
1836 * selection), and also selanchor (for one being
1837 * selected as we speak).
1839 seltop
= sb ?
-term
->savelines
: topline
;
1841 if (term
->selstate
!= NO_SELECTION
) {
1842 if (term
->selstart
.y
>= seltop
&&
1843 term
->selstart
.y
<= botline
) {
1845 if (term
->selstart
.y
< seltop
) {
1846 term
->selstart
.y
= seltop
;
1847 term
->selstart
.x
= 0;
1850 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1852 if (term
->selend
.y
< seltop
) {
1853 term
->selend
.y
= seltop
;
1857 if (term
->selanchor
.y
>= seltop
&&
1858 term
->selanchor
.y
<= botline
) {
1859 term
->selanchor
.y
--;
1860 if (term
->selanchor
.y
< seltop
) {
1861 term
->selanchor
.y
= seltop
;
1862 term
->selanchor
.x
= 0;
1870 #ifdef OPTIMISE_SCROLL
1871 shift
+= term
->disptop
- olddisptop
;
1872 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1873 scroll_display(term
, topline
, botline
, shift
);
1874 #endif /* OPTIMISE_SCROLL */
1877 #ifdef OPTIMISE_SCROLL
1879 * Add a scroll of a region on the screen into the pending scroll list.
1880 * `lines' is +ve for scrolling forward, -ve for backward.
1882 * If the scroll is on the same area as the last scroll in the list,
1885 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
1887 struct scrollregion
*newscroll
;
1888 if (term
->scrolltail
&&
1889 term
->scrolltail
->topline
== topline
&&
1890 term
->scrolltail
->botline
== botline
) {
1891 term
->scrolltail
->lines
+= lines
;
1893 newscroll
= snew(struct scrollregion
);
1894 newscroll
->topline
= topline
;
1895 newscroll
->botline
= botline
;
1896 newscroll
->lines
= lines
;
1897 newscroll
->next
= NULL
;
1899 if (!term
->scrollhead
)
1900 term
->scrollhead
= newscroll
;
1902 term
->scrolltail
->next
= newscroll
;
1903 term
->scrolltail
= newscroll
;
1908 * Scroll the physical display, and our conception of it in disptext.
1910 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
1912 int distance
, nlines
, i
, j
;
1914 distance
= lines
> 0 ? lines
: -lines
;
1915 nlines
= botline
- topline
+ 1 - distance
;
1917 for (i
= 0; i
< nlines
; i
++)
1918 for (j
= 0; j
< term
->cols
; j
++)
1919 copy_termchar(term
->disptext
[start
+i
], j
,
1920 term
->disptext
[start
+i
+distance
]->chars
+j
);
1921 if (term
->dispcursy
>= 0 &&
1922 term
->dispcursy
>= topline
+ distance
&&
1923 term
->dispcursy
< topline
+ distance
+ nlines
)
1924 term
->dispcursy
-= distance
;
1925 for (i
= 0; i
< distance
; i
++)
1926 for (j
= 0; j
< term
->cols
; j
++)
1927 term
->disptext
[start
+nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1929 for (i
= nlines
; i
-- ;)
1930 for (j
= 0; j
< term
->cols
; j
++)
1931 copy_termchar(term
->disptext
[start
+i
+distance
], j
,
1932 term
->disptext
[start
+i
]->chars
+j
);
1933 if (term
->dispcursy
>= 0 &&
1934 term
->dispcursy
>= topline
&&
1935 term
->dispcursy
< topline
+ nlines
)
1936 term
->dispcursy
+= distance
;
1937 for (i
= 0; i
< distance
; i
++)
1938 for (j
= 0; j
< term
->cols
; j
++)
1939 term
->disptext
[start
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1941 save_scroll(term
, topline
, botline
, lines
);
1943 #endif /* OPTIMISE_SCROLL */
1946 * Move the cursor to a given position, clipping at boundaries. We
1947 * may or may not want to clip at the scroll margin: marg_clip is 0
1948 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
1949 * even _being_ outside the margins.
1951 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
1955 if (x
>= term
->cols
)
1958 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
1961 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
1967 if (y
>= term
->rows
)
1971 term
->wrapnext
= FALSE
;
1975 * Save or restore the cursor and SGR mode.
1977 static void save_cursor(Terminal
*term
, int save
)
1980 term
->savecurs
= term
->curs
;
1981 term
->save_attr
= term
->curr_attr
;
1982 term
->save_cset
= term
->cset
;
1983 term
->save_utf
= term
->utf
;
1984 term
->save_wnext
= term
->wrapnext
;
1985 term
->save_csattr
= term
->cset_attr
[term
->cset
];
1986 term
->save_sco_acs
= term
->sco_acs
;
1988 term
->curs
= term
->savecurs
;
1989 /* Make sure the window hasn't shrunk since the save */
1990 if (term
->curs
.x
>= term
->cols
)
1991 term
->curs
.x
= term
->cols
- 1;
1992 if (term
->curs
.y
>= term
->rows
)
1993 term
->curs
.y
= term
->rows
- 1;
1995 term
->curr_attr
= term
->save_attr
;
1996 term
->cset
= term
->save_cset
;
1997 term
->utf
= term
->save_utf
;
1998 term
->wrapnext
= term
->save_wnext
;
2000 * wrapnext might reset to False if the x position is no
2001 * longer at the rightmost edge.
2003 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
2004 term
->wrapnext
= FALSE
;
2005 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
2006 term
->sco_acs
= term
->save_sco_acs
;
2007 set_erase_char(term
);
2012 * This function is called before doing _anything_ which affects
2013 * only part of a line of text. It is used to mark the boundary
2014 * between two character positions, and it indicates that some sort
2015 * of effect is going to happen on only one side of that boundary.
2017 * The effect of this function is to check whether a CJK
2018 * double-width character is straddling the boundary, and to remove
2019 * it and replace it with two spaces if so. (Of course, one or
2020 * other of those spaces is then likely to be replaced with
2021 * something else again, as a result of whatever happens next.)
2023 * Also, if the boundary is at the right-hand _edge_ of the screen,
2024 * it implies something deliberate is being done to the rightmost
2025 * column position; hence we must clear LATTR_WRAPPED2.
2027 * The input to the function is the coordinates of the _second_
2028 * character of the pair.
2030 static void check_boundary(Terminal
*term
, int x
, int y
)
2034 /* Validate input coordinates, just in case. */
2035 if (x
== 0 || x
> term
->cols
)
2038 ldata
= scrlineptr(y
);
2039 if (x
== term
->cols
) {
2040 ldata
->lattr
&= ~LATTR_WRAPPED2
;
2042 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
2043 clear_cc(ldata
, x
-1);
2045 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
2046 ldata
->chars
[x
] = ldata
->chars
[x
-1];
2052 * Erase a large portion of the screen: the whole screen, or the
2053 * whole line, or parts thereof.
2055 static void erase_lots(Terminal
*term
,
2056 int line_only
, int from_begin
, int to_end
)
2060 int erasing_lines_from_top
= 0;
2063 start
.y
= term
->curs
.y
;
2065 end
.y
= term
->curs
.y
+ 1;
2067 erase_lattr
= FALSE
;
2082 if (!from_begin
|| !to_end
)
2083 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2084 check_selection(term
, start
, end
);
2086 /* Clear screen also forces a full window redraw, just in case. */
2087 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
2088 term_invalidate(term
);
2090 /* Lines scrolled away shouldn't be brought back on if the terminal
2092 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
2093 erasing_lines_from_top
= 1;
2095 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
2096 /* If it's a whole number of lines, starting at the top, and
2097 * we're fully erasing them, erase by scrolling and keep the
2098 * lines in the scrollback. */
2099 int scrolllines
= end
.y
;
2100 if (end
.y
== term
->rows
) {
2101 /* Shrink until we find a non-empty row.*/
2102 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
2104 if (scrolllines
> 0)
2105 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
2107 termline
*ldata
= scrlineptr(start
.y
);
2108 while (poslt(start
, end
)) {
2109 if (start
.x
== term
->cols
) {
2111 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
2113 ldata
->lattr
= LATTR_NORM
;
2115 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
2117 if (incpos(start
) && start
.y
< term
->rows
) {
2118 ldata
= scrlineptr(start
.y
);
2123 /* After an erase of lines from the top of the screen, we shouldn't
2124 * bring the lines back again if the terminal enlarges (since the user or
2125 * application has explictly thrown them away). */
2126 if (erasing_lines_from_top
&& !(term
->alt_which
))
2127 term
->tempsblines
= 0;
2131 * Insert or delete characters within the current line. n is +ve if
2132 * insertion is desired, and -ve for deletion.
2134 static void insch(Terminal
*term
, int n
)
2136 int dir
= (n
< 0 ?
-1 : +1);
2141 n
= (n
< 0 ?
-n
: n
);
2142 if (n
> term
->cols
- term
->curs
.x
)
2143 n
= term
->cols
- term
->curs
.x
;
2144 m
= term
->cols
- term
->curs
.x
- n
;
2145 cursplus
.y
= term
->curs
.y
;
2146 cursplus
.x
= term
->curs
.x
+ n
;
2147 check_selection(term
, term
->curs
, cursplus
);
2148 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2150 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2151 ldata
= scrlineptr(term
->curs
.y
);
2153 for (j
= 0; j
< m
; j
++)
2154 move_termchar(ldata
,
2155 ldata
->chars
+ term
->curs
.x
+ j
,
2156 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2158 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2161 move_termchar(ldata
,
2162 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2163 ldata
->chars
+ term
->curs
.x
+ j
);
2165 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2170 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2171 * whether the mode is a DEC private one or a normal one.)
2173 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2177 case 1: /* DECCKM: application cursor keys */
2178 term
->app_cursor_keys
= state
;
2180 case 2: /* DECANM: VT52 mode */
2181 term
->vt52_mode
= !state
;
2182 if (term
->vt52_mode
) {
2183 term
->blink_is_real
= FALSE
;
2184 term
->vt52_bold
= FALSE
;
2186 term
->blink_is_real
= term
->cfg
.blinktext
;
2188 term_schedule_tblink(term
);
2190 case 3: /* DECCOLM: 80/132 columns */
2192 if (!term
->cfg
.no_remote_resize
)
2193 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2194 term
->reset_132
= state
;
2195 term
->alt_t
= term
->marg_t
= 0;
2196 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2197 move(term
, 0, 0, 0);
2198 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2200 case 5: /* DECSCNM: reverse video */
2202 * Toggle reverse video. If we receive an OFF within the
2203 * visual bell timeout period after an ON, we trigger an
2204 * effective visual bell, so that ESC[?5hESC[?5l will
2205 * always be an actually _visible_ visual bell.
2207 if (term
->rvideo
&& !state
) {
2208 /* This is an OFF, so set up a vbell */
2209 term_schedule_vbell(term
, TRUE
, term
->rvbell_startpoint
);
2210 } else if (!term
->rvideo
&& state
) {
2211 /* This is an ON, so we notice the time and save it. */
2212 term
->rvbell_startpoint
= GETTICKCOUNT();
2214 term
->rvideo
= state
;
2215 seen_disp_event(term
);
2217 case 6: /* DECOM: DEC origin mode */
2218 term
->dec_om
= state
;
2220 case 7: /* DECAWM: auto wrap */
2223 case 8: /* DECARM: auto key repeat */
2224 term
->repeat_off
= !state
;
2226 case 10: /* DECEDM: set local edit mode */
2227 term
->term_editing
= state
;
2228 if (term
->ldisc
) /* cause ldisc to notice changes */
2229 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2231 case 25: /* DECTCEM: enable/disable cursor */
2232 compatibility2(OTHER
, VT220
);
2233 term
->cursor_on
= state
;
2234 seen_disp_event(term
);
2236 case 47: /* alternate screen */
2237 compatibility(OTHER
);
2239 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2242 case 1000: /* xterm mouse 1 */
2243 term
->xterm_mouse
= state ?
1 : 0;
2244 set_raw_mouse_mode(term
->frontend
, state
);
2246 case 1002: /* xterm mouse 2 */
2247 term
->xterm_mouse
= state ?
2 : 0;
2248 set_raw_mouse_mode(term
->frontend
, state
);
2250 case 1047: /* alternate screen */
2251 compatibility(OTHER
);
2253 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2256 case 1048: /* save/restore cursor */
2257 if (!term
->cfg
.no_alt_screen
)
2258 save_cursor(term
, state
);
2259 if (!state
) seen_disp_event(term
);
2261 case 1049: /* cursor & alternate screen */
2262 if (state
&& !term
->cfg
.no_alt_screen
)
2263 save_cursor(term
, state
);
2264 if (!state
) seen_disp_event(term
);
2265 compatibility(OTHER
);
2267 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2268 if (!state
&& !term
->cfg
.no_alt_screen
)
2269 save_cursor(term
, state
);
2274 case 4: /* IRM: set insert mode */
2275 compatibility(VT102
);
2276 term
->insert
= state
;
2278 case 12: /* SRM: set echo mode */
2279 term
->term_echoing
= !state
;
2280 if (term
->ldisc
) /* cause ldisc to notice changes */
2281 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2283 case 20: /* LNM: Return sends ... */
2284 term
->cr_lf_return
= state
;
2286 case 34: /* WYULCURM: Make cursor BIG */
2287 compatibility2(OTHER
, VT220
);
2288 term
->big_cursor
= !state
;
2293 * Process an OSC sequence: set window title or icon name.
2295 static void do_osc(Terminal
*term
)
2298 while (term
->osc_strlen
--)
2299 term
->wordness
[(unsigned char)
2300 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2302 term
->osc_string
[term
->osc_strlen
] = '\0';
2303 switch (term
->esc_args
[0]) {
2306 if (!term
->cfg
.no_remote_wintitle
)
2307 set_icon(term
->frontend
, term
->osc_string
);
2308 if (term
->esc_args
[0] == 1)
2310 /* fall through: parameter 0 means set both */
2313 if (!term
->cfg
.no_remote_wintitle
)
2314 set_title(term
->frontend
, term
->osc_string
);
2321 * ANSI printing routines.
2323 static void term_print_setup(Terminal
*term
)
2325 bufchain_clear(&term
->printer_buf
);
2326 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2328 static void term_print_flush(Terminal
*term
)
2333 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2334 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2337 printer_job_data(term
->print_job
, data
, len
);
2338 bufchain_consume(&term
->printer_buf
, len
);
2341 static void term_print_finish(Terminal
*term
)
2347 if (!term
->printing
&& !term
->only_printing
)
2348 return; /* we need do nothing */
2350 term_print_flush(term
);
2351 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2352 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2354 if (c
== '\033' || c
== '\233') {
2355 bufchain_consume(&term
->printer_buf
, size
);
2358 printer_job_data(term
->print_job
, &c
, 1);
2359 bufchain_consume(&term
->printer_buf
, 1);
2362 printer_finish_job(term
->print_job
);
2363 term
->print_job
= NULL
;
2364 term
->printing
= term
->only_printing
= FALSE
;
2368 * Remove everything currently in `inbuf' and stick it up on the
2369 * in-memory display. There's a big state machine in here to
2370 * process escape sequences...
2372 static void term_out(Terminal
*term
)
2376 unsigned char localbuf
[256], *chars
;
2381 chars
= NULL
; /* placate compiler warnings */
2382 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
2386 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2387 if (nchars
> sizeof(localbuf
))
2388 nchars
= sizeof(localbuf
);
2389 memcpy(localbuf
, ret
, nchars
);
2390 bufchain_consume(&term
->inbuf
, nchars
);
2392 assert(chars
!= NULL
);
2398 * Optionally log the session traffic to a file. Useful for
2399 * debugging and possibly also useful for actual logging.
2401 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2402 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2408 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2409 * be able to display 8-bit characters, but I'll let that go 'cause
2414 * If we're printing, add the character to the printer
2417 if (term
->printing
) {
2418 bufchain_add(&term
->printer_buf
, &c
, 1);
2421 * If we're in print-only mode, we use a much simpler
2422 * state machine designed only to recognise the ESC[4i
2423 * termination sequence.
2425 if (term
->only_printing
) {
2427 term
->print_state
= 1;
2428 else if (c
== (unsigned char)'\233')
2429 term
->print_state
= 2;
2430 else if (c
== '[' && term
->print_state
== 1)
2431 term
->print_state
= 2;
2432 else if (c
== '4' && term
->print_state
== 2)
2433 term
->print_state
= 3;
2434 else if (c
== 'i' && term
->print_state
== 3)
2435 term
->print_state
= 4;
2437 term
->print_state
= 0;
2438 if (term
->print_state
== 4) {
2439 term_print_finish(term
);
2445 /* First see about all those translations. */
2446 if (term
->termstate
== TOPLEVEL
) {
2448 switch (term
->utf_state
) {
2451 /* UTF-8 must be stateless so we ignore iso2022. */
2452 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2453 c
= term
->ucsdata
->unitab_ctrl
[c
];
2454 else c
= ((unsigned char)c
) | CSET_ASCII
;
2456 } else if ((c
& 0xe0) == 0xc0) {
2457 term
->utf_size
= term
->utf_state
= 1;
2458 term
->utf_char
= (c
& 0x1f);
2459 } else if ((c
& 0xf0) == 0xe0) {
2460 term
->utf_size
= term
->utf_state
= 2;
2461 term
->utf_char
= (c
& 0x0f);
2462 } else if ((c
& 0xf8) == 0xf0) {
2463 term
->utf_size
= term
->utf_state
= 3;
2464 term
->utf_char
= (c
& 0x07);
2465 } else if ((c
& 0xfc) == 0xf8) {
2466 term
->utf_size
= term
->utf_state
= 4;
2467 term
->utf_char
= (c
& 0x03);
2468 } else if ((c
& 0xfe) == 0xfc) {
2469 term
->utf_size
= term
->utf_state
= 5;
2470 term
->utf_char
= (c
& 0x01);
2481 if ((c
& 0xC0) != 0x80) {
2484 term
->utf_state
= 0;
2487 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2488 if (--term
->utf_state
)
2493 /* Is somebody trying to be evil! */
2495 (c
< 0x800 && term
->utf_size
>= 2) ||
2496 (c
< 0x10000 && term
->utf_size
>= 3) ||
2497 (c
< 0x200000 && term
->utf_size
>= 4) ||
2498 (c
< 0x4000000 && term
->utf_size
>= 5))
2501 /* Unicode line separator and paragraph separator are CR-LF */
2502 if (c
== 0x2028 || c
== 0x2029)
2505 /* High controls are probably a Baaad idea too. */
2509 /* The UTF-16 surrogates are not nice either. */
2510 /* The standard give the option of decoding these:
2511 * I don't want to! */
2512 if (c
>= 0xD800 && c
< 0xE000)
2515 /* ISO 10646 characters now limited to UTF-16 range. */
2519 /* This is currently a TagPhobic application.. */
2520 if (c
>= 0xE0000 && c
<= 0xE007F)
2523 /* U+FEFF is best seen as a null. */
2526 /* But U+FFFE is an error. */
2527 if (c
== 0xFFFE || c
== 0xFFFF)
2532 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2533 else if(term
->sco_acs
&&
2534 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2536 if (term
->sco_acs
== 2) c
|= 0x80;
2539 switch (term
->cset_attr
[term
->cset
]) {
2541 * Linedraw characters are different from 'ESC ( B'
2542 * only for a small range. For ones outside that
2543 * range, make sure we use the same font as well as
2544 * the same encoding.
2547 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2548 c
= term
->ucsdata
->unitab_ctrl
[c
];
2550 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2554 /* If UK-ASCII, make the '#' a LineDraw Pound */
2556 c
= '}' | CSET_LINEDRW
;
2559 /*FALLTHROUGH*/ case CSET_ASCII
:
2560 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2561 c
= term
->ucsdata
->unitab_ctrl
[c
];
2563 c
= ((unsigned char) c
) | CSET_ASCII
;
2566 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2572 /* How about C1 controls ? */
2573 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2574 !term
->vt52_mode
&& has_compat(VT220
)) {
2575 term
->termstate
= SEEN_ESC
;
2576 term
->esc_query
= FALSE
;
2577 c
= '@' + (c
& 0x1F);
2580 /* Or the GL control. */
2581 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2582 if (term
->curs
.x
&& !term
->wrapnext
)
2584 term
->wrapnext
= FALSE
;
2585 /* destructive backspace might be disabled */
2586 if (!term
->cfg
.no_dbackspace
) {
2587 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2588 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2589 copy_termchar(scrlineptr(term
->curs
.y
),
2590 term
->curs
.x
, &term
->erase_char
);
2593 /* Or normal C0 controls. */
2594 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2596 case '\005': /* ENQ: terminal type query */
2597 /* Strictly speaking this is VT100 but a VT100 defaults to
2598 * no response. Other terminals respond at their option.
2600 * Don't put a CR in the default string as this tends to
2601 * upset some weird software.
2603 * An xterm returns "xterm" (5 characters)
2605 compatibility(ANSIMIN
);
2607 char abuf
[256], *s
, *d
;
2609 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
2611 if (*s
>= 'a' && *s
<= 'z')
2612 *d
++ = (*s
- ('a' - 1));
2613 else if ((*s
>= '@' && *s
<= '_') ||
2614 *s
== '?' || (*s
& 0x80))
2619 } else if (*s
== '^') {
2624 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2628 case '\007': /* BEL: Bell */
2630 struct beeptime
*newbeep
;
2631 unsigned long ticks
;
2633 ticks
= GETTICKCOUNT();
2635 if (!term
->beep_overloaded
) {
2636 newbeep
= snew(struct beeptime
);
2637 newbeep
->ticks
= ticks
;
2638 newbeep
->next
= NULL
;
2639 if (!term
->beephead
)
2640 term
->beephead
= newbeep
;
2642 term
->beeptail
->next
= newbeep
;
2643 term
->beeptail
= newbeep
;
2648 * Throw out any beeps that happened more than
2651 while (term
->beephead
&&
2652 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2653 struct beeptime
*tmp
= term
->beephead
;
2654 term
->beephead
= tmp
->next
;
2656 if (!term
->beephead
)
2657 term
->beeptail
= NULL
;
2661 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2662 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2664 * If we're currently overloaded and the
2665 * last beep was more than s seconds ago,
2666 * leave overload mode.
2668 term
->beep_overloaded
= FALSE
;
2669 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2670 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2672 * Now, if we have n or more beeps
2673 * remaining in the queue, go into overload
2676 term
->beep_overloaded
= TRUE
;
2678 term
->lastbeep
= ticks
;
2681 * Perform an actual beep if we're not overloaded.
2683 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2684 beep(term
->frontend
, term
->cfg
.beep
);
2686 if (term
->cfg
.beep
== BELL_VISUAL
) {
2687 term_schedule_vbell(term
, FALSE
, 0);
2690 seen_disp_event(term
);
2693 case '\b': /* BS: Back space */
2694 if (term
->curs
.x
== 0 &&
2695 (term
->curs
.y
== 0 || term
->wrap
== 0))
2697 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2698 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2699 else if (term
->wrapnext
)
2700 term
->wrapnext
= FALSE
;
2703 seen_disp_event(term
);
2705 case '\016': /* LS1: Locking-shift one */
2706 compatibility(VT100
);
2709 case '\017': /* LS0: Locking-shift zero */
2710 compatibility(VT100
);
2713 case '\033': /* ESC: Escape */
2714 if (term
->vt52_mode
)
2715 term
->termstate
= VT52_ESC
;
2717 compatibility(ANSIMIN
);
2718 term
->termstate
= SEEN_ESC
;
2719 term
->esc_query
= FALSE
;
2722 case '\015': /* CR: Carriage return */
2724 term
->wrapnext
= FALSE
;
2725 seen_disp_event(term
);
2726 term
->paste_hold
= 0;
2728 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2730 case '\014': /* FF: Form feed */
2731 if (has_compat(SCOANSI
)) {
2732 move(term
, 0, 0, 0);
2733 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2735 term
->wrapnext
= FALSE
;
2736 seen_disp_event(term
);
2739 case '\013': /* VT: Line tabulation */
2740 compatibility(VT100
);
2741 case '\012': /* LF: Line feed */
2742 if (term
->curs
.y
== term
->marg_b
)
2743 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2744 else if (term
->curs
.y
< term
->rows
- 1)
2746 if (term
->cfg
.lfhascr
)
2748 term
->wrapnext
= FALSE
;
2749 seen_disp_event(term
);
2750 term
->paste_hold
= 0;
2752 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2754 case '\t': /* HT: Character tabulation */
2756 pos old_curs
= term
->curs
;
2757 termline
*ldata
= scrlineptr(term
->curs
.y
);
2761 } while (term
->curs
.x
< term
->cols
- 1 &&
2762 !term
->tabs
[term
->curs
.x
]);
2764 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2765 if (term
->curs
.x
>= term
->cols
/ 2)
2766 term
->curs
.x
= term
->cols
/ 2 - 1;
2768 if (term
->curs
.x
>= term
->cols
)
2769 term
->curs
.x
= term
->cols
- 1;
2772 check_selection(term
, old_curs
, term
->curs
);
2774 seen_disp_event(term
);
2778 switch (term
->termstate
) {
2780 /* Only graphic characters get this far;
2781 * ctrls are stripped above */
2783 termline
*cline
= scrlineptr(term
->curs
.y
);
2788 width
= wcwidth((wchar_t) c
);
2790 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2791 cline
->lattr
|= LATTR_WRAPPED
;
2792 if (term
->curs
.y
== term
->marg_b
)
2793 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2794 else if (term
->curs
.y
< term
->rows
- 1)
2797 term
->wrapnext
= FALSE
;
2798 cline
= scrlineptr(term
->curs
.y
);
2800 if (term
->insert
&& width
> 0)
2802 if (term
->selstate
!= NO_SELECTION
) {
2803 pos cursplus
= term
->curs
;
2805 check_selection(term
, term
->curs
, cursplus
);
2807 if (((c
& CSET_MASK
) == CSET_ASCII
||
2808 (c
& CSET_MASK
) == 0) &&
2810 logtraffic(term
->logctx
, (unsigned char) c
,
2816 * If we're about to display a double-width
2817 * character starting in the rightmost
2818 * column, then we do something special
2819 * instead. We must print a space in the
2820 * last column of the screen, then wrap;
2821 * and we also set LATTR_WRAPPED2 which
2822 * instructs subsequent cut-and-pasting not
2823 * only to splice this line to the one
2824 * after it, but to ignore the space in the
2825 * last character position as well.
2826 * (Because what was actually output to the
2827 * terminal was presumably just a sequence
2828 * of CJK characters, and we don't want a
2829 * space to be pasted in the middle of
2830 * those just because they had the
2831 * misfortune to start in the wrong parity
2832 * column. xterm concurs.)
2834 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2835 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2836 if (term
->curs
.x
== term
->cols
-1) {
2837 copy_termchar(cline
, term
->curs
.x
,
2839 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2840 if (term
->curs
.y
== term
->marg_b
)
2841 scroll(term
, term
->marg_t
, term
->marg_b
,
2843 else if (term
->curs
.y
< term
->rows
- 1)
2846 /* Now we must check_boundary again, of course. */
2847 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2848 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2852 clear_cc(cline
, term
->curs
.x
);
2853 cline
->chars
[term
->curs
.x
].chr
= c
;
2854 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2859 clear_cc(cline
, term
->curs
.x
);
2860 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2861 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2865 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2866 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2869 clear_cc(cline
, term
->curs
.x
);
2870 cline
->chars
[term
->curs
.x
].chr
= c
;
2871 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2875 if (term
->curs
.x
> 0) {
2876 int x
= term
->curs
.x
- 1;
2878 /* If we're in wrapnext state, the character
2879 * to combine with is _here_, not to our left. */
2884 * If the previous character is
2885 * UCSWIDE, back up another one.
2887 if (cline
->chars
[x
].chr
== UCSWIDE
) {
2892 add_cc(cline
, x
, c
);
2893 seen_disp_event(term
);
2900 if (term
->curs
.x
== term
->cols
) {
2902 term
->wrapnext
= TRUE
;
2903 if (term
->wrap
&& term
->vt52_mode
) {
2904 cline
->lattr
|= LATTR_WRAPPED
;
2905 if (term
->curs
.y
== term
->marg_b
)
2906 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2907 else if (term
->curs
.y
< term
->rows
- 1)
2910 term
->wrapnext
= FALSE
;
2913 seen_disp_event(term
);
2919 * This state is virtually identical to SEEN_ESC, with the
2920 * exception that we have an OSC sequence in the pipeline,
2921 * and _if_ we see a backslash, we process it.
2925 term
->termstate
= TOPLEVEL
;
2928 /* else fall through */
2930 if (c
>= ' ' && c
<= '/') {
2931 if (term
->esc_query
)
2932 term
->esc_query
= -1;
2934 term
->esc_query
= c
;
2937 term
->termstate
= TOPLEVEL
;
2938 switch (ANSI(c
, term
->esc_query
)) {
2939 case '[': /* enter CSI mode */
2940 term
->termstate
= SEEN_CSI
;
2941 term
->esc_nargs
= 1;
2942 term
->esc_args
[0] = ARG_DEFAULT
;
2943 term
->esc_query
= FALSE
;
2945 case ']': /* OSC: xterm escape sequences */
2946 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
2947 compatibility(OTHER
);
2948 term
->termstate
= SEEN_OSC
;
2949 term
->esc_args
[0] = 0;
2951 case '7': /* DECSC: save cursor */
2952 compatibility(VT100
);
2953 save_cursor(term
, TRUE
);
2955 case '8': /* DECRC: restore cursor */
2956 compatibility(VT100
);
2957 save_cursor(term
, FALSE
);
2958 seen_disp_event(term
);
2960 case '=': /* DECKPAM: Keypad application mode */
2961 compatibility(VT100
);
2962 term
->app_keypad_keys
= TRUE
;
2964 case '>': /* DECKPNM: Keypad numeric mode */
2965 compatibility(VT100
);
2966 term
->app_keypad_keys
= FALSE
;
2968 case 'D': /* IND: exactly equivalent to LF */
2969 compatibility(VT100
);
2970 if (term
->curs
.y
== term
->marg_b
)
2971 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2972 else if (term
->curs
.y
< term
->rows
- 1)
2974 term
->wrapnext
= FALSE
;
2975 seen_disp_event(term
);
2977 case 'E': /* NEL: exactly equivalent to CR-LF */
2978 compatibility(VT100
);
2980 if (term
->curs
.y
== term
->marg_b
)
2981 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2982 else if (term
->curs
.y
< term
->rows
- 1)
2984 term
->wrapnext
= FALSE
;
2985 seen_disp_event(term
);
2987 case 'M': /* RI: reverse index - backwards LF */
2988 compatibility(VT100
);
2989 if (term
->curs
.y
== term
->marg_t
)
2990 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
2991 else if (term
->curs
.y
> 0)
2993 term
->wrapnext
= FALSE
;
2994 seen_disp_event(term
);
2996 case 'Z': /* DECID: terminal type query */
2997 compatibility(VT100
);
2999 ldisc_send(term
->ldisc
, term
->id_string
,
3000 strlen(term
->id_string
), 0);
3002 case 'c': /* RIS: restore power-on settings */
3003 compatibility(VT100
);
3005 if (term
->ldisc
) /* cause ldisc to notice changes */
3006 ldisc_send(term
->ldisc
, NULL
, 0, 0);
3007 if (term
->reset_132
) {
3008 if (!term
->cfg
.no_remote_resize
)
3009 request_resize(term
->frontend
, 80, term
->rows
);
3010 term
->reset_132
= 0;
3013 seen_disp_event(term
);
3015 case 'H': /* HTS: set a tab */
3016 compatibility(VT100
);
3017 term
->tabs
[term
->curs
.x
] = TRUE
;
3020 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
3021 compatibility(VT100
);
3027 for (i
= 0; i
< term
->rows
; i
++) {
3028 ldata
= scrlineptr(i
);
3029 for (j
= 0; j
< term
->cols
; j
++) {
3030 copy_termchar(ldata
, j
,
3031 &term
->basic_erase_char
);
3032 ldata
->chars
[j
].chr
= 'E';
3034 ldata
->lattr
= LATTR_NORM
;
3037 seen_disp_event(term
);
3038 scrtop
.x
= scrtop
.y
= 0;
3040 scrbot
.y
= term
->rows
;
3041 check_selection(term
, scrtop
, scrbot
);
3045 case ANSI('3', '#'):
3046 case ANSI('4', '#'):
3047 case ANSI('5', '#'):
3048 case ANSI('6', '#'):
3049 compatibility(VT100
);
3053 switch (ANSI(c
, term
->esc_query
)) {
3054 case ANSI('3', '#'): /* DECDHL: 2*height, top */
3057 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
3060 case ANSI('5', '#'): /* DECSWL: normal */
3061 nlattr
= LATTR_NORM
;
3063 default: /* case ANSI('6', '#'): DECDWL: 2*width */
3064 nlattr
= LATTR_WIDE
;
3067 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
3070 /* GZD4: G0 designate 94-set */
3071 case ANSI('A', '('):
3072 compatibility(VT100
);
3073 if (!term
->cfg
.no_remote_charset
)
3074 term
->cset_attr
[0] = CSET_GBCHR
;
3076 case ANSI('B', '('):
3077 compatibility(VT100
);
3078 if (!term
->cfg
.no_remote_charset
)
3079 term
->cset_attr
[0] = CSET_ASCII
;
3081 case ANSI('0', '('):
3082 compatibility(VT100
);
3083 if (!term
->cfg
.no_remote_charset
)
3084 term
->cset_attr
[0] = CSET_LINEDRW
;
3086 case ANSI('U', '('):
3087 compatibility(OTHER
);
3088 if (!term
->cfg
.no_remote_charset
)
3089 term
->cset_attr
[0] = CSET_SCOACS
;
3091 /* G1D4: G1-designate 94-set */
3092 case ANSI('A', ')'):
3093 compatibility(VT100
);
3094 if (!term
->cfg
.no_remote_charset
)
3095 term
->cset_attr
[1] = CSET_GBCHR
;
3097 case ANSI('B', ')'):
3098 compatibility(VT100
);
3099 if (!term
->cfg
.no_remote_charset
)
3100 term
->cset_attr
[1] = CSET_ASCII
;
3102 case ANSI('0', ')'):
3103 compatibility(VT100
);
3104 if (!term
->cfg
.no_remote_charset
)
3105 term
->cset_attr
[1] = CSET_LINEDRW
;
3107 case ANSI('U', ')'):
3108 compatibility(OTHER
);
3109 if (!term
->cfg
.no_remote_charset
)
3110 term
->cset_attr
[1] = CSET_SCOACS
;
3112 /* DOCS: Designate other coding system */
3113 case ANSI('8', '%'): /* Old Linux code */
3114 case ANSI('G', '%'):
3115 compatibility(OTHER
);
3116 if (!term
->cfg
.no_remote_charset
)
3119 case ANSI('@', '%'):
3120 compatibility(OTHER
);
3121 if (!term
->cfg
.no_remote_charset
)
3127 term
->termstate
= TOPLEVEL
; /* default */
3129 if (term
->esc_nargs
<= ARGS_MAX
) {
3130 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3131 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3132 term
->esc_args
[term
->esc_nargs
- 1] =
3133 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3135 term
->termstate
= SEEN_CSI
;
3136 } else if (c
== ';') {
3137 if (++term
->esc_nargs
<= ARGS_MAX
)
3138 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
3139 term
->termstate
= SEEN_CSI
;
3140 } else if (c
< '@') {
3141 if (term
->esc_query
)
3142 term
->esc_query
= -1;
3144 term
->esc_query
= TRUE
;
3146 term
->esc_query
= c
;
3147 term
->termstate
= SEEN_CSI
;
3149 switch (ANSI(c
, term
->esc_query
)) {
3150 case 'A': /* CUU: move up N lines */
3151 move(term
, term
->curs
.x
,
3152 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3153 seen_disp_event(term
);
3155 case 'e': /* VPR: move down N lines */
3156 compatibility(ANSI
);
3158 case 'B': /* CUD: Cursor down */
3159 move(term
, term
->curs
.x
,
3160 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3161 seen_disp_event(term
);
3163 case ANSI('c', '>'): /* DA: report xterm version */
3164 compatibility(OTHER
);
3165 /* this reports xterm version 136 so that VIM can
3166 use the drag messages from the mouse reporting */
3168 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3170 case 'a': /* HPR: move right N cols */
3171 compatibility(ANSI
);
3173 case 'C': /* CUF: Cursor right */
3174 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3176 seen_disp_event(term
);
3178 case 'D': /* CUB: move left N cols */
3179 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3181 seen_disp_event(term
);
3183 case 'E': /* CNL: move down N lines and CR */
3184 compatibility(ANSI
);
3186 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3187 seen_disp_event(term
);
3189 case 'F': /* CPL: move up N lines and CR */
3190 compatibility(ANSI
);
3192 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3193 seen_disp_event(term
);
3196 case '`': /* HPA: set horizontal posn */
3197 compatibility(ANSI
);
3198 move(term
, def(term
->esc_args
[0], 1) - 1,
3200 seen_disp_event(term
);
3202 case 'd': /* VPA: set vertical posn */
3203 compatibility(ANSI
);
3204 move(term
, term
->curs
.x
,
3205 ((term
->dec_om ? term
->marg_t
: 0) +
3206 def(term
->esc_args
[0], 1) - 1),
3207 (term
->dec_om ?
2 : 0));
3208 seen_disp_event(term
);
3211 case 'f': /* HVP: set horz and vert posns at once */
3212 if (term
->esc_nargs
< 2)
3213 term
->esc_args
[1] = ARG_DEFAULT
;
3214 move(term
, def(term
->esc_args
[1], 1) - 1,
3215 ((term
->dec_om ? term
->marg_t
: 0) +
3216 def(term
->esc_args
[0], 1) - 1),
3217 (term
->dec_om ?
2 : 0));
3218 seen_disp_event(term
);
3220 case 'J': /* ED: erase screen or parts of it */
3222 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3225 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3228 seen_disp_event(term
);
3230 case 'K': /* EL: erase line or parts of it */
3232 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3235 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3237 seen_disp_event(term
);
3239 case 'L': /* IL: insert lines */
3240 compatibility(VT102
);
3241 if (term
->curs
.y
<= term
->marg_b
)
3242 scroll(term
, term
->curs
.y
, term
->marg_b
,
3243 -def(term
->esc_args
[0], 1), FALSE
);
3244 seen_disp_event(term
);
3246 case 'M': /* DL: delete lines */
3247 compatibility(VT102
);
3248 if (term
->curs
.y
<= term
->marg_b
)
3249 scroll(term
, term
->curs
.y
, term
->marg_b
,
3250 def(term
->esc_args
[0], 1),
3252 seen_disp_event(term
);
3254 case '@': /* ICH: insert chars */
3255 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3256 compatibility(VT102
);
3257 insch(term
, def(term
->esc_args
[0], 1));
3258 seen_disp_event(term
);
3260 case 'P': /* DCH: delete chars */
3261 compatibility(VT102
);
3262 insch(term
, -def(term
->esc_args
[0], 1));
3263 seen_disp_event(term
);
3265 case 'c': /* DA: terminal type query */
3266 compatibility(VT100
);
3267 /* This is the response for a VT102 */
3269 ldisc_send(term
->ldisc
, term
->id_string
,
3270 strlen(term
->id_string
), 0);
3272 case 'n': /* DSR: cursor position query */
3274 if (term
->esc_args
[0] == 6) {
3276 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3278 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3279 } else if (term
->esc_args
[0] == 5) {
3280 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3284 case 'h': /* SM: toggle modes to high */
3286 compatibility(VT100
);
3289 for (i
= 0; i
< term
->esc_nargs
; i
++)
3290 toggle_mode(term
, term
->esc_args
[i
],
3291 term
->esc_query
, TRUE
);
3294 case 'i': /* MC: Media copy */
3296 compatibility(VT100
);
3298 if (term
->esc_nargs
!= 1) break;
3299 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3300 term
->printing
= TRUE
;
3301 term
->only_printing
= !term
->esc_query
;
3302 term
->print_state
= 0;
3303 term_print_setup(term
);
3304 } else if (term
->esc_args
[0] == 4 &&
3306 term_print_finish(term
);
3310 case 'l': /* RM: toggle modes to low */
3312 compatibility(VT100
);
3315 for (i
= 0; i
< term
->esc_nargs
; i
++)
3316 toggle_mode(term
, term
->esc_args
[i
],
3317 term
->esc_query
, FALSE
);
3320 case 'g': /* TBC: clear tabs */
3321 compatibility(VT100
);
3322 if (term
->esc_nargs
== 1) {
3323 if (term
->esc_args
[0] == 0) {
3324 term
->tabs
[term
->curs
.x
] = FALSE
;
3325 } else if (term
->esc_args
[0] == 3) {
3327 for (i
= 0; i
< term
->cols
; i
++)
3328 term
->tabs
[i
] = FALSE
;
3332 case 'r': /* DECSTBM: set scroll margins */
3333 compatibility(VT100
);
3334 if (term
->esc_nargs
<= 2) {
3336 top
= def(term
->esc_args
[0], 1) - 1;
3337 bot
= (term
->esc_nargs
<= 1
3338 || term
->esc_args
[1] == 0 ?
3340 def(term
->esc_args
[1], term
->rows
)) - 1;
3341 if (bot
>= term
->rows
)
3342 bot
= term
->rows
- 1;
3343 /* VTTEST Bug 9 - if region is less than 2 lines
3344 * don't change region.
3346 if (bot
- top
> 0) {
3351 * I used to think the cursor should be
3352 * placed at the top of the newly marginned
3353 * area. Apparently not: VMS TPU falls over
3356 * Well actually it should for
3359 term
->curs
.y
= (term
->dec_om ?
3361 seen_disp_event(term
);
3365 case 'm': /* SGR: set graphics rendition */
3368 * A VT100 without the AVO only had one
3369 * attribute, either underline or
3370 * reverse video depending on the
3371 * cursor type, this was selected by
3375 * This is sometimes DIM, eg on the
3378 * This is sometimes INVIS various ANSI.
3380 * This like 22 disables BOLD, DIM and INVIS
3382 * The ANSI colours appear on any
3383 * terminal that has colour (obviously)
3384 * but the interaction between sgr0 and
3385 * the colours varies but is usually
3386 * related to the background colour
3387 * erase item. The interaction between
3388 * colour attributes and the mono ones
3389 * is also very implementation
3392 * The 39 and 49 attributes are likely
3393 * to be unimplemented.
3396 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3397 switch (def(term
->esc_args
[i
], 0)) {
3398 case 0: /* restore defaults */
3399 term
->curr_attr
= term
->default_attr
;
3401 case 1: /* enable bold */
3402 compatibility(VT100AVO
);
3403 term
->curr_attr
|= ATTR_BOLD
;
3405 case 21: /* (enable double underline) */
3406 compatibility(OTHER
);
3407 case 4: /* enable underline */
3408 compatibility(VT100AVO
);
3409 term
->curr_attr
|= ATTR_UNDER
;
3411 case 5: /* enable blink */
3412 compatibility(VT100AVO
);
3413 term
->curr_attr
|= ATTR_BLINK
;
3415 case 6: /* SCO light bkgrd */
3416 compatibility(SCOANSI
);
3417 term
->blink_is_real
= FALSE
;
3418 term
->curr_attr
|= ATTR_BLINK
;
3419 term_schedule_tblink(term
);
3421 case 7: /* enable reverse video */
3422 term
->curr_attr
|= ATTR_REVERSE
;
3424 case 10: /* SCO acs off */
3425 compatibility(SCOANSI
);
3426 if (term
->cfg
.no_remote_charset
) break;
3427 term
->sco_acs
= 0; break;
3428 case 11: /* SCO acs on */
3429 compatibility(SCOANSI
);
3430 if (term
->cfg
.no_remote_charset
) break;
3431 term
->sco_acs
= 1; break;
3432 case 12: /* SCO acs on, |0x80 */
3433 compatibility(SCOANSI
);
3434 if (term
->cfg
.no_remote_charset
) break;
3435 term
->sco_acs
= 2; break;
3436 case 22: /* disable bold */
3437 compatibility2(OTHER
, VT220
);
3438 term
->curr_attr
&= ~ATTR_BOLD
;
3440 case 24: /* disable underline */
3441 compatibility2(OTHER
, VT220
);
3442 term
->curr_attr
&= ~ATTR_UNDER
;
3444 case 25: /* disable blink */
3445 compatibility2(OTHER
, VT220
);
3446 term
->curr_attr
&= ~ATTR_BLINK
;
3448 case 27: /* disable reverse video */
3449 compatibility2(OTHER
, VT220
);
3450 term
->curr_attr
&= ~ATTR_REVERSE
;
3461 term
->curr_attr
&= ~ATTR_FGMASK
;
3463 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3473 /* xterm-style bright foreground */
3474 term
->curr_attr
&= ~ATTR_FGMASK
;
3476 ((term
->esc_args
[i
] - 90 + 16)
3479 case 39: /* default-foreground */
3480 term
->curr_attr
&= ~ATTR_FGMASK
;
3481 term
->curr_attr
|= ATTR_DEFFG
;
3492 term
->curr_attr
&= ~ATTR_BGMASK
;
3494 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3504 /* xterm-style bright background */
3505 term
->curr_attr
&= ~ATTR_BGMASK
;
3507 ((term
->esc_args
[i
] - 100 + 16)
3510 case 49: /* default-background */
3511 term
->curr_attr
&= ~ATTR_BGMASK
;
3512 term
->curr_attr
|= ATTR_DEFBG
;
3516 set_erase_char(term
);
3519 case 's': /* save cursor */
3520 save_cursor(term
, TRUE
);
3522 case 'u': /* restore cursor */
3523 save_cursor(term
, FALSE
);
3524 seen_disp_event(term
);
3526 case 't': /* DECSLPP: set page size - ie window height */
3528 * VT340/VT420 sequence DECSLPP, DEC only allows values
3529 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3530 * illegal values (eg first arg 1..9) for window changing
3533 if (term
->esc_nargs
<= 1
3534 && (term
->esc_args
[0] < 1 ||
3535 term
->esc_args
[0] >= 24)) {
3536 compatibility(VT340TEXT
);
3537 if (!term
->cfg
.no_remote_resize
)
3538 request_resize(term
->frontend
, term
->cols
,
3539 def(term
->esc_args
[0], 24));
3541 } else if (term
->esc_nargs
>= 1 &&
3542 term
->esc_args
[0] >= 1 &&
3543 term
->esc_args
[0] < 24) {
3544 compatibility(OTHER
);
3546 switch (term
->esc_args
[0]) {
3550 set_iconic(term
->frontend
, FALSE
);
3553 set_iconic(term
->frontend
, TRUE
);
3556 if (term
->esc_nargs
>= 3) {
3557 if (!term
->cfg
.no_remote_resize
)
3558 move_window(term
->frontend
,
3559 def(term
->esc_args
[1], 0),
3560 def(term
->esc_args
[2], 0));
3564 /* We should resize the window to a given
3565 * size in pixels here, but currently our
3566 * resizing code isn't healthy enough to
3571 set_zorder(term
->frontend
, TRUE
);
3574 /* move to bottom */
3575 set_zorder(term
->frontend
, FALSE
);
3578 refresh_window(term
->frontend
);
3581 if (term
->esc_nargs
>= 3) {
3582 if (!term
->cfg
.no_remote_resize
)
3583 request_resize(term
->frontend
,
3584 def(term
->esc_args
[2], term
->cfg
.width
),
3585 def(term
->esc_args
[1], term
->cfg
.height
));
3589 if (term
->esc_nargs
>= 2)
3590 set_zoomed(term
->frontend
,
3596 ldisc_send(term
->ldisc
,
3597 is_iconic(term
->frontend
) ?
3598 "\033[1t" : "\033[2t", 4, 0);
3602 get_window_pos(term
->frontend
, &x
, &y
);
3603 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3604 ldisc_send(term
->ldisc
, buf
, len
, 0);
3609 get_window_pixels(term
->frontend
, &x
, &y
);
3610 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3611 ldisc_send(term
->ldisc
, buf
, len
, 0);
3616 len
= sprintf(buf
, "\033[8;%d;%dt",
3617 term
->rows
, term
->cols
);
3618 ldisc_send(term
->ldisc
, buf
, len
, 0);
3623 * Hmmm. Strictly speaking we
3624 * should return `the size of the
3625 * screen in characters', but
3626 * that's not easy: (a) window
3627 * furniture being what it is it's
3628 * hard to compute, and (b) in
3629 * resize-font mode maximising the
3630 * window wouldn't change the
3631 * number of characters. *shrug*. I
3632 * think we'll ignore it for the
3633 * moment and see if anyone
3634 * complains, and then ask them
3635 * what they would like it to do.
3640 !term
->cfg
.no_remote_qtitle
) {
3641 p
= get_window_title(term
->frontend
, TRUE
);
3643 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3644 ldisc_send(term
->ldisc
, p
, len
, 0);
3645 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3650 !term
->cfg
.no_remote_qtitle
) {
3651 p
= get_window_title(term
->frontend
,FALSE
);
3653 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3654 ldisc_send(term
->ldisc
, p
, len
, 0);
3655 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3661 case 'S': /* SU: Scroll up */
3662 compatibility(SCOANSI
);
3663 scroll(term
, term
->marg_t
, term
->marg_b
,
3664 def(term
->esc_args
[0], 1), TRUE
);
3665 term
->wrapnext
= FALSE
;
3666 seen_disp_event(term
);
3668 case 'T': /* SD: Scroll down */
3669 compatibility(SCOANSI
);
3670 scroll(term
, term
->marg_t
, term
->marg_b
,
3671 -def(term
->esc_args
[0], 1), TRUE
);
3672 term
->wrapnext
= FALSE
;
3673 seen_disp_event(term
);
3675 case ANSI('|', '*'): /* DECSNLS */
3677 * Set number of lines on screen
3678 * VT420 uses VGA like hardware and can
3679 * support any size in reasonable range
3680 * (24..49 AIUI) with no default specified.
3682 compatibility(VT420
);
3683 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3684 if (!term
->cfg
.no_remote_resize
)
3685 request_resize(term
->frontend
, term
->cols
,
3686 def(term
->esc_args
[0],
3691 case ANSI('|', '$'): /* DECSCPP */
3693 * Set number of columns per page
3694 * Docs imply range is only 80 or 132, but
3697 compatibility(VT340TEXT
);
3698 if (term
->esc_nargs
<= 1) {
3699 if (!term
->cfg
.no_remote_resize
)
3700 request_resize(term
->frontend
,
3701 def(term
->esc_args
[0],
3702 term
->cfg
.width
), term
->rows
);
3706 case 'X': /* ECH: write N spaces w/o moving cursor */
3707 /* XXX VTTEST says this is vt220, vt510 manual
3709 compatibility(ANSIMIN
);
3711 int n
= def(term
->esc_args
[0], 1);
3713 int p
= term
->curs
.x
;
3714 termline
*cline
= scrlineptr(term
->curs
.y
);
3716 if (n
> term
->cols
- term
->curs
.x
)
3717 n
= term
->cols
- term
->curs
.x
;
3718 cursplus
= term
->curs
;
3720 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3721 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3722 check_selection(term
, term
->curs
, cursplus
);
3724 copy_termchar(cline
, p
++,
3726 seen_disp_event(term
);
3729 case 'x': /* DECREQTPARM: report terminal characteristics */
3730 compatibility(VT100
);
3733 int i
= def(term
->esc_args
[0], 0);
3734 if (i
== 0 || i
== 1) {
3735 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3737 ldisc_send(term
->ldisc
, buf
, 20, 0);
3741 case 'Z': /* CBT: BackTab for xterm */
3742 compatibility(OTHER
);
3744 int i
= def(term
->esc_args
[0], 1);
3745 pos old_curs
= term
->curs
;
3747 for(;i
>0 && term
->curs
.x
>0; i
--) {
3750 } while (term
->curs
.x
>0 &&
3751 !term
->tabs
[term
->curs
.x
]);
3753 check_selection(term
, old_curs
, term
->curs
);
3756 case ANSI('c', '='): /* Hide or Show Cursor */
3757 compatibility(SCOANSI
);
3758 switch(term
->esc_args
[0]) {
3759 case 0: /* hide cursor */
3760 term
->cursor_on
= FALSE
;
3762 case 1: /* restore cursor */
3763 term
->big_cursor
= FALSE
;
3764 term
->cursor_on
= TRUE
;
3766 case 2: /* block cursor */
3767 term
->big_cursor
= TRUE
;
3768 term
->cursor_on
= TRUE
;
3772 case ANSI('C', '='):
3774 * set cursor start on scanline esc_args[0] and
3775 * end on scanline esc_args[1].If you set
3776 * the bottom scan line to a value less than
3777 * the top scan line, the cursor will disappear.
3779 compatibility(SCOANSI
);
3780 if (term
->esc_nargs
>= 2) {
3781 if (term
->esc_args
[0] > term
->esc_args
[1])
3782 term
->cursor_on
= FALSE
;
3784 term
->cursor_on
= TRUE
;
3787 case ANSI('D', '='):
3788 compatibility(SCOANSI
);
3789 term
->blink_is_real
= FALSE
;
3790 term_schedule_tblink(term
);
3791 if (term
->esc_args
[0]>=1)
3792 term
->curr_attr
|= ATTR_BLINK
;
3794 term
->curr_attr
&= ~ATTR_BLINK
;
3796 case ANSI('E', '='):
3797 compatibility(SCOANSI
);
3798 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3799 term_schedule_tblink(term
);
3801 case ANSI('F', '='): /* set normal foreground */
3802 compatibility(SCOANSI
);
3803 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3805 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3806 ((term
->esc_args
[0] & 0x8) << 1)) <<
3808 term
->curr_attr
&= ~ATTR_FGMASK
;
3809 term
->curr_attr
|= colour
;
3810 term
->default_attr
&= ~ATTR_FGMASK
;
3811 term
->default_attr
|= colour
;
3814 case ANSI('G', '='): /* set normal background */
3815 compatibility(SCOANSI
);
3816 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3818 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3819 ((term
->esc_args
[0] & 0x8) << 1)) <<
3821 term
->curr_attr
&= ~ATTR_BGMASK
;
3822 term
->curr_attr
|= colour
;
3823 term
->default_attr
&= ~ATTR_BGMASK
;
3824 term
->default_attr
|= colour
;
3827 case ANSI('L', '='):
3828 compatibility(SCOANSI
);
3829 term
->use_bce
= (term
->esc_args
[0] <= 0);
3830 set_erase_char(term
);
3832 case ANSI('p', '"'): /* DECSCL: set compat level */
3834 * Allow the host to make this emulator a
3835 * 'perfect' VT102. This first appeared in
3836 * the VT220, but we do need to get back to
3837 * PuTTY mode so I won't check it.
3839 * The arg in 40..42,50 are a PuTTY extension.
3840 * The 2nd arg, 8bit vs 7bit is not checked.
3842 * Setting VT102 mode should also change
3843 * the Fkeys to generate PF* codes as a
3844 * real VT102 has no Fkeys. The VT220 does
3845 * this, F11..F13 become ESC,BS,LF other
3846 * Fkeys send nothing.
3848 * Note ESC c will NOT change this!
3851 switch (term
->esc_args
[0]) {
3853 term
->compatibility_level
&= ~TM_VTXXX
;
3854 term
->compatibility_level
|= TM_VT102
;
3857 term
->compatibility_level
&= ~TM_VTXXX
;
3858 term
->compatibility_level
|= TM_VT220
;
3862 if (term
->esc_args
[0] > 60 &&
3863 term
->esc_args
[0] < 70)
3864 term
->compatibility_level
|= TM_VTXXX
;
3868 term
->compatibility_level
&= TM_VTXXX
;
3871 term
->compatibility_level
= TM_PUTTY
;
3874 term
->compatibility_level
= TM_SCOANSI
;
3878 term
->compatibility_level
= TM_PUTTY
;
3884 /* Change the response to CSI c */
3885 if (term
->esc_args
[0] == 50) {
3888 strcpy(term
->id_string
, "\033[?");
3889 for (i
= 1; i
< term
->esc_nargs
; i
++) {
3891 strcat(term
->id_string
, ";");
3892 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
3893 strcat(term
->id_string
, lbuf
);
3895 strcat(term
->id_string
, "c");
3898 /* Is this a good idea ?
3899 * Well we should do a soft reset at this point ...
3901 if (!has_compat(VT420
) && has_compat(VT100
)) {
3902 if (!term
->cfg
.no_remote_resize
) {
3903 if (term
->reset_132
)
3904 request_resize(132, 24);
3906 request_resize(80, 24);
3914 term
->osc_w
= FALSE
;
3916 case 'P': /* Linux palette sequence */
3917 term
->termstate
= SEEN_OSC_P
;
3918 term
->osc_strlen
= 0;
3920 case 'R': /* Linux palette reset */
3921 palette_reset(term
->frontend
);
3922 term_invalidate(term
);
3923 term
->termstate
= TOPLEVEL
;
3925 case 'W': /* word-set */
3926 term
->termstate
= SEEN_OSC_W
;
3939 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3943 * Grotty hack to support xterm and DECterm title
3944 * sequences concurrently.
3946 if (term
->esc_args
[0] == 2) {
3947 term
->esc_args
[0] = 1;
3950 /* else fall through */
3952 term
->termstate
= OSC_STRING
;
3953 term
->osc_strlen
= 0;
3958 * This OSC stuff is EVIL. It takes just one character to get into
3959 * sysline mode and it's not initially obvious how to get out.
3960 * So I've added CR and LF as string aborts.
3961 * This shouldn't effect compatibility as I believe embedded
3962 * control characters are supposed to be interpreted (maybe?)
3963 * and they don't display anything useful anyway.
3967 if (c
== '\012' || c
== '\015') {
3968 term
->termstate
= TOPLEVEL
;
3969 } else if (c
== 0234 || c
== '\007') {
3971 * These characters terminate the string; ST and BEL
3972 * terminate the sequence and trigger instant
3973 * processing of it, whereas ESC goes back to SEEN_ESC
3974 * mode unless it is followed by \, in which case it is
3975 * synonymous with ST in the first place.
3978 term
->termstate
= TOPLEVEL
;
3979 } else if (c
== '\033')
3980 term
->termstate
= OSC_MAYBE_ST
;
3981 else if (term
->osc_strlen
< OSC_STR_MAX
)
3982 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
3986 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
3988 if ((int)c
>= '0' && (int)c
<= '9')
3990 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
3992 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
3995 term
->termstate
= TOPLEVEL
;
3998 term
->osc_string
[term
->osc_strlen
++] = val
;
3999 if (term
->osc_strlen
>= 7) {
4000 palette_set(term
->frontend
, term
->osc_string
[0],
4001 term
->osc_string
[1] * 16 + term
->osc_string
[2],
4002 term
->osc_string
[3] * 16 + term
->osc_string
[4],
4003 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
4004 term_invalidate(term
);
4005 term
->termstate
= TOPLEVEL
;
4021 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4024 term
->termstate
= OSC_STRING
;
4025 term
->osc_strlen
= 0;
4029 term
->termstate
= TOPLEVEL
;
4030 seen_disp_event(term
);
4033 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
4036 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
4039 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
4042 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
4045 * From the VT100 Manual
4046 * NOTE: The special graphics characters in the VT100
4047 * are different from those in the VT52
4049 * From VT102 manual:
4050 * 137 _ Blank - Same
4051 * 140 ` Reserved - Humm.
4052 * 141 a Solid rectangle - Similar
4053 * 142 b 1/ - Top half of fraction for the
4054 * 143 c 3/ - subscript numbers below.
4057 * 146 f Degrees - Same
4058 * 147 g Plus or minus - Same
4060 * 151 i Ellipsis (dots)
4063 * 154 l Bar at scan 0
4064 * 155 m Bar at scan 1
4065 * 156 n Bar at scan 2
4066 * 157 o Bar at scan 3 - Similar
4067 * 160 p Bar at scan 4 - Similar
4068 * 161 q Bar at scan 5 - Similar
4069 * 162 r Bar at scan 6 - Same
4070 * 163 s Bar at scan 7 - Similar
4085 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
4088 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
4091 move(term
, 0, 0, 0);
4094 if (term
->curs
.y
== 0)
4095 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
4096 else if (term
->curs
.y
> 0)
4098 term
->wrapnext
= FALSE
;
4101 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4105 erase_lots(term
, TRUE
, FALSE
, TRUE
);
4109 /* XXX Print cursor line */
4112 /* XXX Start controller mode */
4115 /* XXX Stop controller mode */
4119 term
->termstate
= VT52_Y1
;
4123 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
4126 term
->app_keypad_keys
= TRUE
;
4129 term
->app_keypad_keys
= FALSE
;
4132 /* XXX This should switch to VT100 mode not current or default
4133 * VT mode. But this will only have effect in a VT220+
4136 term
->vt52_mode
= FALSE
;
4137 term
->blink_is_real
= term
->cfg
.blinktext
;
4138 term_schedule_tblink(term
);
4142 /* XXX Enter auto print mode */
4145 /* XXX Exit auto print mode */
4148 /* XXX Print screen */
4154 /* compatibility(ATARI) */
4155 move(term
, 0, 0, 0);
4156 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4160 /* compatibility(ATARI) */
4161 if (term
->curs
.y
<= term
->marg_b
)
4162 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4165 /* compatibility(ATARI) */
4166 if (term
->curs
.y
<= term
->marg_b
)
4167 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4170 /* compatibility(ATARI) */
4171 term
->termstate
= VT52_FG
;
4174 /* compatibility(ATARI) */
4175 term
->termstate
= VT52_BG
;
4178 /* compatibility(ATARI) */
4179 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4183 /* compatibility(ATARI) */
4184 term
->cursor_on
= TRUE
;
4187 /* compatibility(ATARI) */
4188 term
->cursor_on
= FALSE
;
4190 /* case 'j': Save cursor position - broken on ST */
4191 /* case 'k': Restore cursor position */
4193 /* compatibility(ATARI) */
4194 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4196 term
->wrapnext
= FALSE
;
4199 /* compatibility(ATARI) */
4200 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4203 /* compatibility(ATARI) */
4204 term
->curr_attr
|= ATTR_REVERSE
;
4207 /* compatibility(ATARI) */
4208 term
->curr_attr
&= ~ATTR_REVERSE
;
4210 case 'v': /* wrap Autowrap on - Wyse style */
4211 /* compatibility(ATARI) */
4214 case 'w': /* Autowrap off */
4215 /* compatibility(ATARI) */
4220 /* compatibility(OTHER) */
4221 term
->vt52_bold
= FALSE
;
4222 term
->curr_attr
= ATTR_DEFAULT
;
4223 set_erase_char(term
);
4226 /* compatibility(VI50) */
4227 term
->curr_attr
|= ATTR_UNDER
;
4230 /* compatibility(VI50) */
4231 term
->curr_attr
&= ~ATTR_UNDER
;
4234 /* compatibility(VI50) */
4235 term
->vt52_bold
= TRUE
;
4236 term
->curr_attr
|= ATTR_BOLD
;
4239 /* compatibility(VI50) */
4240 term
->vt52_bold
= FALSE
;
4241 term
->curr_attr
&= ~ATTR_BOLD
;
4247 term
->termstate
= VT52_Y2
;
4248 move(term
, term
->curs
.x
, c
- ' ', 0);
4251 term
->termstate
= TOPLEVEL
;
4252 move(term
, c
- ' ', term
->curs
.y
, 0);
4257 term
->termstate
= TOPLEVEL
;
4258 term
->curr_attr
&= ~ATTR_FGMASK
;
4259 term
->curr_attr
&= ~ATTR_BOLD
;
4260 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
4261 if ((c
& 0x8) || term
->vt52_bold
)
4262 term
->curr_attr
|= ATTR_BOLD
;
4264 set_erase_char(term
);
4267 term
->termstate
= TOPLEVEL
;
4268 term
->curr_attr
&= ~ATTR_BGMASK
;
4269 term
->curr_attr
&= ~ATTR_BLINK
;
4270 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
4272 /* Note: bold background */
4274 term
->curr_attr
|= ATTR_BLINK
;
4276 set_erase_char(term
);
4279 default: break; /* placate gcc warning about enum use */
4281 if (term
->selstate
!= NO_SELECTION
) {
4282 pos cursplus
= term
->curs
;
4284 check_selection(term
, term
->curs
, cursplus
);
4288 term_print_flush(term
);
4289 logflush(term
->logctx
);
4293 * To prevent having to run the reasonably tricky bidi algorithm
4294 * too many times, we maintain a cache of the last lineful of data
4295 * fed to the algorithm on each line of the display.
4297 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4298 termchar
*lbefore
, int width
)
4302 if (!term
->pre_bidi_cache
)
4303 return FALSE
; /* cache doesn't even exist yet! */
4305 if (line
>= term
->bidi_cache_size
)
4306 return FALSE
; /* cache doesn't have this many lines */
4308 if (!term
->pre_bidi_cache
[line
].chars
)
4309 return FALSE
; /* cache doesn't contain _this_ line */
4311 if (term
->pre_bidi_cache
[line
].width
!= width
)
4312 return FALSE
; /* line is wrong width */
4314 for (i
= 0; i
< width
; i
++)
4315 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4316 return FALSE
; /* line doesn't match cache */
4318 return TRUE
; /* it didn't match. */
4321 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4322 termchar
*lafter
, int width
)
4324 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4325 int j
= term
->bidi_cache_size
;
4326 term
->bidi_cache_size
= line
+1;
4327 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4328 term
->bidi_cache_size
,
4329 struct bidi_cache_entry
);
4330 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4331 term
->bidi_cache_size
,
4332 struct bidi_cache_entry
);
4333 while (j
< term
->bidi_cache_size
) {
4334 term
->pre_bidi_cache
[j
].chars
=
4335 term
->post_bidi_cache
[j
].chars
= NULL
;
4336 term
->pre_bidi_cache
[j
].width
=
4337 term
->post_bidi_cache
[j
].width
= -1;
4342 sfree(term
->pre_bidi_cache
[line
].chars
);
4343 sfree(term
->post_bidi_cache
[line
].chars
);
4345 term
->pre_bidi_cache
[line
].width
= width
;
4346 term
->pre_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4347 term
->post_bidi_cache
[line
].width
= width
;
4348 term
->post_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4350 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, width
* TSIZE
);
4351 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, width
* TSIZE
);
4355 * Given a context, update the window. Out of paranoia, we don't
4356 * allow WM_PAINT responses to do scrolling optimisations.
4358 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4360 int i
, it
, j
, our_curs_y
, our_curs_x
;
4365 termchar cursor_background
;
4366 #ifdef OPTIMISE_SCROLL
4367 struct scrollregion
*sr
;
4368 #endif /* OPTIMISE_SCROLL */
4370 cursor_background
= term
->basic_erase_char
;
4373 ch
= snewn(chlen
, wchar_t);
4375 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4378 * screen array, disptop, scrtop,
4380 * cfg.blinkpc, blink_is_real, tblinker,
4381 * curs.y, curs.x, cblinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4384 /* Has the cursor position or type changed ? */
4385 if (term
->cursor_on
) {
4386 if (term
->has_focus
) {
4387 if (term
->cblinker
|| !term
->cfg
.blink_cur
)
4388 cursor
= TATTR_ACTCURS
;
4392 cursor
= TATTR_PASCURS
;
4394 cursor
|= TATTR_RIGHTCURS
;
4397 our_curs_y
= term
->curs
.y
- term
->disptop
;
4400 * Adjust the cursor position in the case where it's
4401 * resting on the right-hand half of a CJK wide character.
4402 * xterm's behaviour here, which seems adequate to me, is
4403 * to display the cursor covering the _whole_ character,
4404 * exactly as if it were one space to the left.
4406 termline
*ldata
= lineptr(term
->curs
.y
);
4407 our_curs_x
= term
->curs
.x
;
4408 if (our_curs_x
> 0 &&
4409 ldata
->chars
[our_curs_x
].chr
== UCSWIDE
)
4415 * If the cursor is not where it was last time we painted, and
4416 * its previous position is visible on screen, invalidate its
4417 * previous position.
4419 if (term
->dispcursy
>= 0 &&
4420 (term
->curstype
!= cursor
||
4421 term
->dispcursy
!= our_curs_y
||
4422 term
->dispcursx
!= our_curs_x
)) {
4423 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4426 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4427 dispcurs
[-1].attr
|= ATTR_INVALID
;
4428 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4429 dispcurs
[1].attr
|= ATTR_INVALID
;
4430 dispcurs
->attr
|= ATTR_INVALID
;
4434 term
->dispcursx
= term
->dispcursy
= -1;
4436 #ifdef OPTIMISE_SCROLL
4438 sr
= term
->scrollhead
;
4440 struct scrollregion
*next
= sr
->next
;
4441 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4445 term
->scrollhead
= term
->scrolltail
= NULL
;
4446 #endif /* OPTIMISE_SCROLL */
4448 /* The normal screen data */
4449 for (i
= 0; i
< term
->rows
; i
++) {
4452 int dirty_line
, dirty_run
, selected
;
4453 unsigned long attr
= 0, cset
= 0;
4454 int updated_line
= 0;
4457 int last_run_dirty
= 0;
4459 scrpos
.y
= i
+ term
->disptop
;
4460 ldata
= lineptr(scrpos
.y
);
4462 dirty_run
= dirty_line
= (ldata
->lattr
!=
4463 term
->disptext
[i
]->lattr
);
4464 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4466 /* Do Arabic shaping and bidi. */
4467 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4469 if (!term_bidi_cache_hit(term
, i
, ldata
->chars
, term
->cols
)) {
4471 if (term
->wcFromTo_size
< term
->cols
) {
4472 term
->wcFromTo_size
= term
->cols
;
4473 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4475 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4479 for(it
=0; it
<term
->cols
; it
++)
4481 unsigned long uc
= (ldata
->chars
[it
].chr
);
4483 switch (uc
& CSET_MASK
) {
4485 if (!term
->cfg
.rawcnp
) {
4486 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4490 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4493 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4496 switch (uc
& CSET_MASK
) {
4498 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4501 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4505 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4507 term
->wcFrom
[it
].index
= it
;
4511 do_bidi(term
->wcFrom
, term
->cols
);
4513 /* this is saved iff done from inside the shaping */
4514 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4515 for(it
=0; it
<term
->cols
; it
++)
4516 term
->wcTo
[it
] = term
->wcFrom
[it
];
4518 if(!term
->cfg
.arabicshaping
)
4519 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4521 if (term
->ltemp_size
< ldata
->size
) {
4522 term
->ltemp_size
= ldata
->size
;
4523 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4527 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4529 for(it
=0; it
<term
->cols
; it
++)
4531 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4532 if (term
->ltemp
[it
].cc_next
)
4533 term
->ltemp
[it
].cc_next
-=
4534 it
- term
->wcTo
[it
].index
;
4536 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4537 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4539 term_bidi_cache_store(term
, i
, ldata
->chars
,
4540 term
->ltemp
, ldata
->size
);
4542 lchars
= term
->ltemp
;
4544 lchars
= term
->post_bidi_cache
[i
].chars
;
4547 lchars
= ldata
->chars
;
4549 for (j
= 0; j
< term
->cols
; j
++) {
4550 unsigned long tattr
, tchar
;
4551 termchar
*d
= lchars
+ j
;
4552 int break_run
, do_copy
;
4558 if (!term
->cfg
.ansi_colour
)
4559 tattr
= (tattr
& ~(ATTR_FGMASK
| ATTR_BGMASK
)) |
4560 ATTR_DEFFG
| ATTR_DEFBG
;
4562 switch (tchar
& CSET_MASK
) {
4564 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4567 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4570 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4573 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4576 /* Video reversing things */
4577 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4578 if (term
->seltype
== LEXICOGRAPHIC
)
4579 selected
= (posle(term
->selstart
, scrpos
) &&
4580 poslt(scrpos
, term
->selend
));
4582 selected
= (posPle(term
->selstart
, scrpos
) &&
4583 posPlt(scrpos
, term
->selend
));
4587 ^ (selected ? ATTR_REVERSE
: 0));
4589 /* 'Real' blinking ? */
4590 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4591 if (term
->has_focus
&& term
->tblinker
) {
4592 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4594 tattr
&= ~ATTR_BLINK
;
4598 * Check the font we'll _probably_ be using to see if
4599 * the character is wide when we don't want it to be.
4601 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4602 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4604 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4605 tattr
|= ATTR_NARROW
;
4606 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4607 tattr
|= ATTR_NARROW
;
4609 /* Cursor here ? Save the 'background' */
4610 if (i
== our_curs_y
&& j
== our_curs_x
) {
4612 cursor_background
.chr
= tchar
;
4613 cursor_background
.attr
= tattr
;
4614 /* For once, this cc_next field is an absolute index in lchars */
4616 cursor_background
.cc_next
= d
->cc_next
+ j
;
4618 cursor_background
.cc_next
= 0;
4619 term
->dispcursx
= j
;
4620 term
->dispcursy
= i
;
4623 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4626 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4628 /* Special hack for VT100 Linedraw glyphs */
4629 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4633 * Separate out sequences of characters that have the
4634 * same CSET, if that CSET is a magic one.
4636 if (CSET_OF(tchar
) != cset
)
4640 * Break on both sides of any combined-character cell.
4642 if (d
->cc_next
!= 0 ||
4643 (j
> 0 && d
[-1].cc_next
!= 0))
4646 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4647 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4648 term
->disptext
[i
]->chars
[j
].attr
== tattr
)
4650 else if (!dirty_run
&& ccount
== 1)
4655 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4656 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4662 cset
= CSET_OF(tchar
);
4663 if (term
->ucsdata
->dbcs_screenfont
)
4664 last_run_dirty
= dirty_run
;
4665 dirty_run
= dirty_line
;
4669 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4675 if (ccount
>= chlen
) {
4676 chlen
= ccount
+ 256;
4677 ch
= sresize(ch
, chlen
, wchar_t);
4679 ch
[ccount
++] = (wchar_t) tchar
;
4684 while (dd
->cc_next
) {
4685 unsigned long schar
;
4690 switch (schar
& CSET_MASK
) {
4692 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4695 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4698 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4702 if (ccount
>= chlen
) {
4703 chlen
= ccount
+ 256;
4704 ch
= sresize(ch
, chlen
, wchar_t);
4706 ch
[ccount
++] = (wchar_t) schar
;
4709 attr
|= TATTR_COMBINING
;
4713 copy_termchar(term
->disptext
[i
], j
, d
);
4714 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
4715 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
4718 /* If it's a wide char step along to the next one. */
4719 if (tattr
& ATTR_WIDE
) {
4720 if (++j
< term
->cols
) {
4723 * By construction above, the cursor should not
4724 * be on the right-hand half of this character.
4727 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
4728 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
4730 copy_termchar(term
->disptext
[i
], j
, d
);
4734 if (dirty_run
&& ccount
> 0) {
4735 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4739 /* Cursor on this line ? (and changed) */
4740 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
4741 ch
[0] = (wchar_t) cursor_background
.chr
;
4742 attr
= cursor_background
.attr
| cursor
;
4745 if (cursor_background
.cc_next
) {
4746 termchar
*dd
= ldata
->chars
+ cursor_background
.cc_next
;
4749 unsigned long schar
;
4752 switch (schar
& CSET_MASK
) {
4754 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4757 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4760 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4764 if (ccount
>= chlen
) {
4765 chlen
= ccount
+ 256;
4766 ch
= sresize(ch
, chlen
, wchar_t);
4768 ch
[ccount
++] = (wchar_t) schar
;
4776 attr
|= TATTR_COMBINING
;
4779 do_cursor(ctx
, our_curs_x
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4780 term
->curstype
= cursor
;
4790 * Invalidate the whole screen so it will be repainted in full.
4792 void term_invalidate(Terminal
*term
)
4796 for (i
= 0; i
< term
->rows
; i
++)
4797 for (j
= 0; j
< term
->cols
; j
++)
4798 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4802 * Paint the window in response to a WM_PAINT message.
4804 void term_paint(Terminal
*term
, Context ctx
,
4805 int left
, int top
, int right
, int bottom
, int immediately
)
4808 if (left
< 0) left
= 0;
4809 if (top
< 0) top
= 0;
4810 if (right
>= term
->cols
) right
= term
->cols
-1;
4811 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
4813 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
4814 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
4815 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
4816 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4818 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
4819 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4823 do_paint (term
, ctx
, FALSE
);
4825 if (!term
->window_update_pending
) {
4826 term
->window_update_pending
= TRUE
;
4827 term
->next_update
= schedule_timer(UPDATE_DELAY
, term_timer
, term
);
4833 * Attempt to scroll the scrollback. The second parameter gives the
4834 * position we want to scroll to; the first is +1 to denote that
4835 * this position is relative to the beginning of the scrollback, -1
4836 * to denote it is relative to the end, and 0 to denote that it is
4837 * relative to the current position.
4839 void term_scroll(Terminal
*term
, int rel
, int where
)
4841 int sbtop
= -sblines(term
);
4842 #ifdef OPTIMISE_SCROLL
4843 int olddisptop
= term
->disptop
;
4845 #endif /* OPTIMISE_SCROLL */
4847 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
4848 if (term
->disptop
< sbtop
)
4849 term
->disptop
= sbtop
;
4850 if (term
->disptop
> 0)
4853 #ifdef OPTIMISE_SCROLL
4854 shift
= (term
->disptop
- olddisptop
);
4855 if (shift
< term
->rows
&& shift
> -term
->rows
)
4856 scroll_display(term
, 0, term
->rows
- 1, shift
);
4857 #endif /* OPTIMISE_SCROLL */
4861 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
4864 wchar_t *wbptr
; /* where next char goes within workbuf */
4866 int wblen
= 0; /* workbuf len */
4867 int buflen
; /* amount of memory allocated to workbuf */
4869 buflen
= 5120; /* Default size */
4870 workbuf
= snewn(buflen
, wchar_t);
4871 wbptr
= workbuf
; /* start filling here */
4872 old_top_x
= top
.x
; /* needed for rect==1 */
4874 while (poslt(top
, bottom
)) {
4876 termline
*ldata
= lineptr(top
.y
);
4880 * nlpos will point at the maximum position on this line we
4881 * should copy up to. So we start it at the end of the
4885 nlpos
.x
= term
->cols
;
4888 * ... move it backwards if there's unused space at the end
4889 * of the line (and also set `nl' if this is the case,
4890 * because in normal selection mode this means we need a
4891 * newline at the end)...
4893 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
4894 while (IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
4895 !ldata
->chars
[nlpos
.x
- 1].cc_next
&&
4898 if (poslt(nlpos
, bottom
))
4900 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
4901 /* Ignore the last char on the line in a WRAPPED2 line. */
4906 * ... and then clip it to the terminal x coordinate if
4907 * we're doing rectangular selection. (In this case we
4908 * still did the above, so that copying e.g. the right-hand
4909 * column from a table doesn't fill with spaces on the
4913 if (nlpos
.x
> bottom
.x
)
4915 nl
= (top
.y
< bottom
.y
);
4918 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
4921 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
4923 wchar_t cbuf
[16], *p
;
4927 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
4933 int uc
= ldata
->chars
[x
].chr
;
4935 switch (uc
& CSET_MASK
) {
4937 if (!term
->cfg
.rawcnp
) {
4938 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4942 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4945 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4948 switch (uc
& CSET_MASK
) {
4950 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4953 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4957 set
= (uc
& CSET_MASK
);
4958 c
= (uc
& ~CSET_MASK
);
4962 if (DIRECT_FONT(uc
)) {
4963 if (c
>= ' ' && c
!= 0x7F) {
4967 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
4969 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
4970 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
4974 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
4978 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
4985 for (p
= cbuf
; *p
; p
++) {
4986 /* Enough overhead for trailing NL and nul */
4987 if (wblen
>= buflen
- 16) {
4989 workbuf
= sresize(workbuf
, buflen
, wchar_t);
4990 wbptr
= workbuf
+ wblen
;
4996 if (ldata
->chars
[x
].cc_next
)
4997 x
+= ldata
->chars
[x
].cc_next
;
5005 for (i
= 0; i
< sel_nl_sz
; i
++) {
5007 *wbptr
++ = sel_nl
[i
];
5011 top
.x
= rect ? old_top_x
: 0;
5015 #if SELECTION_NUL_TERMINATED
5019 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
5020 if (buflen
> 0) /* indicates we allocated this buffer */
5024 void term_copyall(Terminal
*term
)
5028 tree234
*screen
= term
->screen
;
5029 top
.y
= -sblines(term
);
5031 bottom
.y
= find_last_nonempty_line(term
, screen
);
5032 bottom
.x
= term
->cols
;
5033 clipme(term
, top
, bottom
, 0, TRUE
);
5037 * The wordness array is mainly for deciding the disposition of the
5038 * US-ASCII characters.
5040 static int wordtype(Terminal
*term
, int uc
)
5043 int start
, end
, ctype
;
5045 static const struct ucsword ucs_words
[] = {
5051 0x037e, 0x037e, 1}, /* Greek question mark */
5053 0x0387, 0x0387, 1}, /* Greek ano teleia */
5055 0x055a, 0x055f, 1}, /* Armenian punctuation */
5057 0x0589, 0x0589, 1}, /* Armenian full stop */
5059 0x0700, 0x070d, 1}, /* Syriac punctuation */
5061 0x104a, 0x104f, 1}, /* Myanmar punctuation */
5063 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
5065 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
5067 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
5069 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
5071 0x1800, 0x180a, 1}, /* Mongolian punctuation */
5073 0x2000, 0x200a, 0}, /* Various spaces */
5075 0x2070, 0x207f, 2}, /* superscript */
5077 0x2080, 0x208f, 2}, /* subscript */
5079 0x200b, 0x27ff, 1}, /* punctuation and symbols */
5081 0x3000, 0x3000, 0}, /* ideographic space */
5083 0x3001, 0x3020, 1}, /* ideographic punctuation */
5085 0x303f, 0x309f, 3}, /* Hiragana */
5087 0x30a0, 0x30ff, 3}, /* Katakana */
5089 0x3300, 0x9fff, 3}, /* CJK Ideographs */
5091 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5093 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5095 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5097 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5099 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5101 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5103 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5105 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5109 const struct ucsword
*wptr
;
5111 switch (uc
& CSET_MASK
) {
5113 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5116 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5119 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5122 switch (uc
& CSET_MASK
) {
5124 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5127 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5131 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5132 * fail as there's such a thing as a double width space. :-(
5134 if (term
->ucsdata
->dbcs_screenfont
&&
5135 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5139 return term
->wordness
[uc
];
5141 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5142 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5150 * Spread the selection outwards according to the selection mode.
5152 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5156 int topy
= -sblines(term
);
5158 ldata
= lineptr(p
.y
);
5160 switch (term
->selmode
) {
5163 * In this mode, every character is a separate unit, except
5164 * for runs of spaces at the end of a non-wrapping line.
5166 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5167 termchar
*q
= ldata
->chars
+ term
->cols
;
5168 while (q
> ldata
->chars
&&
5169 IS_SPACE_CHR(q
[-1].chr
) && !q
[-1].cc_next
)
5171 if (q
== ldata
->chars
+ term
->cols
)
5173 if (p
.x
>= q
- ldata
->chars
)
5174 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5179 * In this mode, the units are maximal runs of characters
5180 * whose `wordness' has the same value.
5182 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5185 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5186 term
->cols
-1 : term
->cols
);
5187 if (p
.x
< maxcols
-1) {
5188 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5193 if (ldata
->lattr
& LATTR_WRAPPED
) {
5195 ldata2
= lineptr(p
.y
+1);
5196 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5213 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5222 ldata2
= lineptr(p
.y
-1);
5223 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5224 term
->cols
-1 : term
->cols
);
5225 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5226 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5244 * In this mode, every line is a unit.
5246 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5254 static void sel_spread(Terminal
*term
)
5256 if (term
->seltype
== LEXICOGRAPHIC
) {
5257 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5258 decpos(term
->selend
);
5259 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5260 incpos(term
->selend
);
5264 void term_do_paste(Terminal
*term
)
5269 get_clip(term
->frontend
, &data
, &len
);
5270 if (data
&& len
> 0) {
5273 term_seen_key_event(term
); /* pasted data counts */
5275 if (term
->paste_buffer
)
5276 sfree(term
->paste_buffer
);
5277 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5278 term
->paste_buffer
= snewn(len
, wchar_t);
5281 while (p
< data
+ len
) {
5282 while (p
< data
+ len
&&
5283 !(p
<= data
+ len
- sel_nl_sz
&&
5284 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5289 for (i
= 0; i
< p
- q
; i
++) {
5290 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5294 if (p
<= data
+ len
- sel_nl_sz
&&
5295 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5296 term
->paste_buffer
[term
->paste_len
++] = '\015';
5302 /* Assume a small paste will be OK in one go. */
5303 if (term
->paste_len
< 256) {
5305 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5306 if (term
->paste_buffer
)
5307 sfree(term
->paste_buffer
);
5308 term
->paste_buffer
= 0;
5309 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5312 get_clip(term
->frontend
, NULL
, NULL
);
5315 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5316 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5320 int raw_mouse
= (term
->xterm_mouse
&&
5321 !term
->cfg
.no_mouse_rep
&&
5322 !(term
->cfg
.mouse_override
&& shift
));
5323 int default_seltype
;
5327 if (a
== MA_DRAG
&& !raw_mouse
)
5328 term_scroll(term
, 0, -1);
5330 if (y
>= term
->rows
) {
5332 if (a
== MA_DRAG
&& !raw_mouse
)
5333 term_scroll(term
, 0, +1);
5342 if (x
>= term
->cols
)
5345 selpoint
.y
= y
+ term
->disptop
;
5347 ldata
= lineptr(selpoint
.y
);
5348 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5353 int encstate
= 0, r
, c
;
5360 encstate
= 0x20; /* left button down */
5371 case MBT_WHEEL_DOWN
:
5374 default: break; /* placate gcc warning about enum use */
5378 if (term
->xterm_mouse
== 1)
5384 term
->mouse_is_down
= 0;
5387 if (term
->mouse_is_down
== braw
)
5389 term
->mouse_is_down
= braw
;
5391 default: break; /* placate gcc warning about enum use */
5400 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5401 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5407 * Set the selection type (rectangular or normal) at the start
5408 * of a selection attempt, from the state of Alt.
5410 if (!alt
^ !term
->cfg
.rect_select
)
5411 default_seltype
= RECTANGULAR
;
5413 default_seltype
= LEXICOGRAPHIC
;
5415 if (term
->selstate
== NO_SELECTION
) {
5416 term
->seltype
= default_seltype
;
5419 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5421 term
->selstate
= ABOUT_TO
;
5422 term
->seltype
= default_seltype
;
5423 term
->selanchor
= selpoint
;
5424 term
->selmode
= SM_CHAR
;
5425 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5427 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5428 term
->selstate
= DRAGGING
;
5429 term
->selstart
= term
->selanchor
= selpoint
;
5430 term
->selend
= term
->selstart
;
5431 incpos(term
->selend
);
5433 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5434 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5435 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5437 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5438 term
->selstate
== SELECTED
) {
5439 if (term
->seltype
== LEXICOGRAPHIC
) {
5441 * For normal selection, we extend by moving
5442 * whichever end of the current selection is closer
5445 if (posdiff(selpoint
, term
->selstart
) <
5446 posdiff(term
->selend
, term
->selstart
) / 2) {
5447 term
->selanchor
= term
->selend
;
5448 decpos(term
->selanchor
);
5450 term
->selanchor
= term
->selstart
;
5454 * For rectangular selection, we have a choice of
5455 * _four_ places to put selanchor and selpoint: the
5456 * four corners of the selection.
5458 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5459 term
->selanchor
.x
= term
->selend
.x
-1;
5461 term
->selanchor
.x
= term
->selstart
.x
;
5463 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5464 term
->selanchor
.y
= term
->selend
.y
;
5466 term
->selanchor
.y
= term
->selstart
.y
;
5468 term
->selstate
= DRAGGING
;
5470 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5471 term
->selanchor
= selpoint
;
5472 term
->selstate
= DRAGGING
;
5473 if (term
->seltype
== LEXICOGRAPHIC
) {
5475 * For normal selection, we set (selstart,selend) to
5476 * (selpoint,selanchor) in some order.
5478 if (poslt(selpoint
, term
->selanchor
)) {
5479 term
->selstart
= selpoint
;
5480 term
->selend
= term
->selanchor
;
5481 incpos(term
->selend
);
5483 term
->selstart
= term
->selanchor
;
5484 term
->selend
= selpoint
;
5485 incpos(term
->selend
);
5489 * For rectangular selection, we may need to
5490 * interchange x and y coordinates (if the user has
5491 * dragged in the -x and +y directions, or vice versa).
5493 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5494 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5495 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5496 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5499 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5501 if (term
->selstate
== DRAGGING
) {
5503 * We've completed a selection. We now transfer the
5504 * data to the clipboard.
5506 clipme(term
, term
->selstart
, term
->selend
,
5507 (term
->seltype
== RECTANGULAR
), FALSE
);
5508 term
->selstate
= SELECTED
;
5510 term
->selstate
= NO_SELECTION
;
5511 } else if (bcooked
== MBT_PASTE
5513 #if MULTICLICK_ONLY_EVENT
5514 || a
== MA_2CLK
|| a
== MA_3CLK
5517 request_paste(term
->frontend
);
5523 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5524 unsigned int modifiers
, unsigned int flags
)
5528 int prependesc
= FALSE
;
5532 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5533 for (i
= 0; i
< tlen
; i
++)
5534 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5535 fprintf(stderr
, "\n");
5539 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5542 /* Currently, Meta always just prefixes everything with ESC. */
5543 if (modifiers
& PKM_META
)
5545 modifiers
&= ~PKM_META
;
5548 * Alt is only used for Alt+keypad, which isn't supported yet, so
5551 modifiers
&= ~PKM_ALT
;
5553 /* Standard local function keys */
5554 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5556 if (keysym
== PK_PAGEUP
)
5557 /* scroll up one page */;
5558 if (keysym
== PK_PAGEDOWN
)
5559 /* scroll down on page */;
5560 if (keysym
== PK_INSERT
)
5561 term_do_paste(term
);
5564 if (keysym
== PK_PAGEUP
)
5565 /* scroll up one line */;
5566 if (keysym
== PK_PAGEDOWN
)
5567 /* scroll down one line */;
5568 /* Control-Numlock for app-keypad mode switch */
5569 if (keysym
== PK_PF1
)
5570 term
->app_keypad_keys
^= 1;
5574 if (modifiers
& PKM_ALT
) {
5575 /* Alt+F4 (close) */
5576 /* Alt+Return (full screen) */
5577 /* Alt+Space (system menu) */
5580 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5581 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5582 /* ASCII chars + Control */
5583 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5584 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5588 * Control-2 should return ^@ (0x00), Control-6 should return
5589 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5590 * the DOS keyboard handling did it, and we have nothing better
5591 * to do with the key combo in question, we'll also map
5592 * Control-Backquote to ^\ (0x1C).
5595 case ' ': text
[0] = 0x00; break;
5596 case '-': text
[0] = 0x1f; break;
5597 case '/': text
[0] = 0x1f; break;
5598 case '2': text
[0] = 0x00; break;
5599 case '3': text
[0] = 0x1b; break;
5600 case '4': text
[0] = 0x1c; break;
5601 case '5': text
[0] = 0x1d; break;
5602 case '6': text
[0] = 0x1e; break;
5603 case '7': text
[0] = 0x1f; break;
5604 case '8': text
[0] = 0x7f; break;
5605 case '`': text
[0] = 0x1c; break;
5610 /* Nethack keypad */
5611 if (term
->cfg
.nethack_keypad
) {
5614 case PK_KP1
: c
= 'b'; break;
5615 case PK_KP2
: c
= 'j'; break;
5616 case PK_KP3
: c
= 'n'; break;
5617 case PK_KP4
: c
= 'h'; break;
5618 case PK_KP5
: c
= '.'; break;
5619 case PK_KP6
: c
= 'l'; break;
5620 case PK_KP7
: c
= 'y'; break;
5621 case PK_KP8
: c
= 'k'; break;
5622 case PK_KP9
: c
= 'u'; break;
5623 default: break; /* else gcc warns `enum value not used' */
5627 if (modifiers
& PKM_CONTROL
)
5629 else if (modifiers
& PKM_SHIFT
)
5637 /* Numeric Keypad */
5638 if (PK_ISKEYPAD(keysym
)) {
5642 * In VT400 mode, PFn always emits an escape sequence. In
5643 * Linux and tilde modes, this only happens in app keypad mode.
5645 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5646 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5647 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5648 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5650 case PK_PF1
: xkey
= 'P'; break;
5651 case PK_PF2
: xkey
= 'Q'; break;
5652 case PK_PF3
: xkey
= 'R'; break;
5653 case PK_PF4
: xkey
= 'S'; break;
5654 default: break; /* else gcc warns `enum value not used' */
5657 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5659 case PK_KP0
: xkey
= 'p'; break;
5660 case PK_KP1
: xkey
= 'q'; break;
5661 case PK_KP2
: xkey
= 'r'; break;
5662 case PK_KP3
: xkey
= 's'; break;
5663 case PK_KP4
: xkey
= 't'; break;
5664 case PK_KP5
: xkey
= 'u'; break;
5665 case PK_KP6
: xkey
= 'v'; break;
5666 case PK_KP7
: xkey
= 'w'; break;
5667 case PK_KP8
: xkey
= 'x'; break;
5668 case PK_KP9
: xkey
= 'y'; break;
5669 case PK_KPDECIMAL
: xkey
= 'n'; break;
5670 case PK_KPENTER
: xkey
= 'M'; break;
5671 default: break; /* else gcc warns `enum value not used' */
5673 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5675 * xterm can't see the layout of the keypad, so it has
5676 * to rely on the X keysyms returned by the keys.
5677 * Hence, we look at the strings here, not the PuTTY
5678 * keysyms (which describe the layout).
5682 if (modifiers
& PKM_SHIFT
)
5687 case '/': xkey
= 'o'; break;
5688 case '*': xkey
= 'j'; break;
5689 case '-': xkey
= 'm'; break;
5693 * In all other modes, we try to retain the layout of
5694 * the DEC keypad in application mode.
5698 /* This key covers the '-' and ',' keys on a VT220 */
5699 if (modifiers
& PKM_SHIFT
)
5700 xkey
= 'm'; /* VT220 '-' */
5702 xkey
= 'l'; /* VT220 ',' */
5704 case PK_KPMINUS
: xkey
= 'm'; break;
5705 case PK_KPCOMMA
: xkey
= 'l'; break;
5706 default: break; /* else gcc warns `enum value not used' */
5711 if (term
->vt52_mode
) {
5712 if (xkey
>= 'P' && xkey
<= 'S')
5713 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5715 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
5717 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5720 /* Not in application mode -- treat the number pad as arrow keys? */
5721 if ((flags
& PKF_NUMLOCK
) == 0) {
5723 case PK_KP0
: keysym
= PK_INSERT
; break;
5724 case PK_KP1
: keysym
= PK_END
; break;
5725 case PK_KP2
: keysym
= PK_DOWN
; break;
5726 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
5727 case PK_KP4
: keysym
= PK_LEFT
; break;
5728 case PK_KP5
: keysym
= PK_REST
; break;
5729 case PK_KP6
: keysym
= PK_RIGHT
; break;
5730 case PK_KP7
: keysym
= PK_HOME
; break;
5731 case PK_KP8
: keysym
= PK_UP
; break;
5732 case PK_KP9
: keysym
= PK_PAGEUP
; break;
5733 default: break; /* else gcc warns `enum value not used' */
5738 /* Miscellaneous keys */
5745 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
5746 else if (modifiers
== PKM_SHIFT
)
5747 /* We do the opposite of what is configured */
5748 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
5754 else if (modifiers
== PKM_SHIFT
)
5755 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
5758 /* XXX window.c has ctrl+shift+space sending 0xa0 */
5760 if (modifiers
== PKM_CONTROL
)
5765 case PK_KPENTER
: /* Odd keypad modes handled above */
5766 if (modifiers
== 0) {
5768 if (term
->cr_lf_return
)
5772 default: break; /* else gcc warns `enum value not used' */
5775 /* SCO function keys and editing keys */
5776 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
5777 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
5778 static char const codes
[] =
5779 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
5780 int index
= keysym
- PK_F1
;
5782 if (modifiers
& PKM_SHIFT
) index
+= 12;
5783 if (modifiers
& PKM_CONTROL
) index
+= 24;
5784 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
5787 if (PK_ISEDITING(keysym
)) {
5791 case PK_DELETE
: *p
++ = 0x7f; goto done
;
5792 case PK_HOME
: xkey
= 'H'; break;
5793 case PK_INSERT
: xkey
= 'L'; break;
5794 case PK_END
: xkey
= 'F'; break;
5795 case PK_PAGEUP
: xkey
= 'I'; break;
5796 case PK_PAGEDOWN
: xkey
= 'G'; break;
5797 default: break; /* else gcc warns `enum value not used' */
5799 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5803 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
5806 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
5807 /* Xterm shuffles these keys, apparently. */
5809 case PK_HOME
: keysym
= PK_INSERT
; break;
5810 case PK_INSERT
: keysym
= PK_HOME
; break;
5811 case PK_DELETE
: keysym
= PK_END
; break;
5812 case PK_END
: keysym
= PK_PAGEUP
; break;
5813 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
5814 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
5815 default: break; /* else gcc warns `enum value not used' */
5820 if (term
->cfg
.rxvt_homeend
&&
5821 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
5822 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
5826 if (term
->vt52_mode
) {
5830 * A real VT52 doesn't have these, and a VT220 doesn't
5831 * send anything for them in VT52 mode.
5834 case PK_HOME
: xkey
= 'H'; break;
5835 case PK_INSERT
: xkey
= 'L'; break;
5836 case PK_DELETE
: xkey
= 'M'; break;
5837 case PK_END
: xkey
= 'E'; break;
5838 case PK_PAGEUP
: xkey
= 'I'; break;
5839 case PK_PAGEDOWN
: xkey
= 'G'; break;
5840 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
5842 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5847 case PK_HOME
: code
= 1; break;
5848 case PK_INSERT
: code
= 2; break;
5849 case PK_DELETE
: code
= 3; break;
5850 case PK_END
: code
= 4; break;
5851 case PK_PAGEUP
: code
= 5; break;
5852 case PK_PAGEDOWN
: code
= 6; break;
5853 default: code
= 0; break; /* else gcc warns `enum value not used' */
5855 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
5859 if (PK_ISFKEY(keysym
)) {
5860 /* Map Shift+F1-F10 to F11-F20 */
5861 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
5863 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
5865 /* XXX This overrides the XTERM/VT52 mode below */
5867 if (keysym
>= PK_F6
) offt
++;
5868 if (keysym
>= PK_F12
) offt
++;
5869 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
5870 'P' + keysym
- PK_F1
- offt
);
5873 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
5874 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
5877 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
5878 if (term
->vt52_mode
)
5879 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
5881 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
5884 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
5888 if (PK_ISCURSOR(keysym
)) {
5892 case PK_UP
: xkey
= 'A'; break;
5893 case PK_DOWN
: xkey
= 'B'; break;
5894 case PK_RIGHT
: xkey
= 'C'; break;
5895 case PK_LEFT
: xkey
= 'D'; break;
5896 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
5897 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
5899 if (term
->vt52_mode
)
5900 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5902 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
5904 /* Useful mapping of Ctrl-arrows */
5905 if (modifiers
== PKM_CONTROL
)
5909 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5911 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5917 if (p
> output
|| tlen
> 0) {
5919 * Interrupt an ongoing paste. I'm not sure
5920 * this is sensible, but for the moment it's
5921 * preferable to having to faff about buffering
5927 * We need not bother about stdin backlogs
5928 * here, because in GUI PuTTY we can't do
5929 * anything about it anyway; there's no means
5930 * of asking Windows to hold off on KEYDOWN
5931 * messages. We _have_ to buffer everything
5934 term_seen_key_event(term
);
5938 fprintf(stderr
, "sending ESC\n");
5940 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
5945 fprintf(stderr
, "sending %d bytes:", p
- output
);
5946 for (i
= 0; i
< p
- output
; i
++)
5947 fprintf(stderr
, " %02x", output
[i
]);
5948 fprintf(stderr
, "\n");
5950 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
5951 } else if (tlen
> 0) {
5953 fprintf(stderr
, "sending %d unichars:", tlen
);
5954 for (i
= 0; i
< tlen
; i
++)
5955 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
5956 fprintf(stderr
, "\n");
5958 luni_send(term
->ldisc
, text
, tlen
, 1);
5963 void term_nopaste(Terminal
*term
)
5965 if (term
->paste_len
== 0)
5967 sfree(term
->paste_buffer
);
5968 term
->paste_buffer
= NULL
;
5969 term
->paste_len
= 0;
5972 int term_paste_pending(Terminal
*term
)
5974 return term
->paste_len
!= 0;
5977 void term_paste(Terminal
*term
)
5979 long now
, paste_diff
;
5981 if (term
->paste_len
== 0)
5984 /* Don't wait forever to paste */
5985 if (term
->paste_hold
) {
5986 now
= GETTICKCOUNT();
5987 paste_diff
= now
- term
->last_paste
;
5988 if (paste_diff
>= 0 && paste_diff
< 450)
5991 term
->paste_hold
= 0;
5993 while (term
->paste_pos
< term
->paste_len
) {
5995 while (n
+ term
->paste_pos
< term
->paste_len
) {
5996 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
6000 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
6001 term
->paste_pos
+= n
;
6003 if (term
->paste_pos
< term
->paste_len
) {
6004 term
->paste_hold
= 1;
6008 sfree(term
->paste_buffer
);
6009 term
->paste_buffer
= NULL
;
6010 term
->paste_len
= 0;
6013 static void deselect(Terminal
*term
)
6015 term
->selstate
= NO_SELECTION
;
6016 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
6019 void term_deselect(Terminal
*term
)
6025 int term_ldisc(Terminal
*term
, int option
)
6027 if (option
== LD_ECHO
)
6028 return term
->term_echoing
;
6029 if (option
== LD_EDIT
)
6030 return term
->term_editing
;
6034 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
6036 bufchain_add(&term
->inbuf
, data
, len
);
6038 if (!term
->in_term_out
) {
6039 term
->in_term_out
= TRUE
;
6040 term_reset_cblink(term
);
6042 * During drag-selects, we do not process terminal input,
6043 * because the user will want the screen to hold still to
6046 if (term
->selstate
!= DRAGGING
)
6048 term
->in_term_out
= FALSE
;
6052 * term_out() always completely empties inbuf. Therefore,
6053 * there's no reason at all to return anything other than zero
6054 * from this function, because there _can't_ be a question of
6055 * the remote side needing to wait until term_out() has cleared
6058 * This is a slightly suboptimal way to deal with SSH2 - in
6059 * principle, the window mechanism would allow us to continue
6060 * to accept data on forwarded ports and X connections even
6061 * while the terminal processing was going slowly - but we
6062 * can't do the 100% right thing without moving the terminal
6063 * processing into a separate thread, and that might hurt
6064 * portability. So we manage stdout buffering the old SSH1 way:
6065 * if the terminal processing goes slowly, the whole SSH
6066 * connection stops accepting data until it's ready.
6068 * In practice, I can't imagine this causing serious trouble.
6073 void term_provide_logctx(Terminal
*term
, void *logctx
)
6075 term
->logctx
= logctx
;