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 compatibility(x) \
47 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
48 term->termstate=TOPLEVEL; \
51 #define compatibility2(x,y) \
52 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
53 term->termstate=TOPLEVEL; \
57 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
59 const char sco2ansicolour
[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
61 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
62 const wchar_t sel_nl
[] = SEL_NL
;
65 * Fetch the character at a particular position in a line array,
66 * for purposes of `wordtype'. The reason this isn't just a simple
67 * array reference is that if the character we find is UCSWIDE,
68 * then we must look one space further to the left.
70 #define UCSGET(a, x) \
71 ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
74 * Detect the various aliases of U+0020 SPACE.
76 #define IS_SPACE_CHR(chr) \
77 ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
82 #define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
85 * Internal prototypes.
87 static void resizeline(Terminal
*, termline
*, int);
88 static termline
*lineptr(Terminal
*, int, int, int);
89 static void unlineptr(termline
*);
90 static void do_paint(Terminal
*, Context
, int);
91 static void erase_lots(Terminal
*, int, int, int);
92 static void swap_screen(Terminal
*, int, int, int);
93 static void update_sbar(Terminal
*);
94 static void deselect(Terminal
*);
95 static void term_print_finish(Terminal
*);
96 #ifdef OPTIMISE_SCROLL
97 static void scroll_display(Terminal
*, int, int, int);
98 #endif /* OPTIMISE_SCROLL */
100 static termline
*newline(Terminal
*term
, int cols
, int bce
)
105 line
= snew(termline
);
106 line
->chars
= snewn(cols
, termchar
);
107 for (j
= 0; j
< cols
; j
++)
108 line
->chars
[j
] = (bce ? term
->erase_char
: term
->basic_erase_char
);
109 line
->cols
= line
->size
= cols
;
110 line
->lattr
= LATTR_NORM
;
111 line
->temporary
= FALSE
;
117 static void freeline(termline
*line
)
125 static void unlineptr(termline
*line
)
132 * Diagnostic function: verify that a termline has a correct
133 * combining character structure.
135 * XXX-REMOVE-BEFORE-RELEASE: This is a performance-intensive
136 * check. Although it's currently really useful for getting all the
137 * bugs out of the new cc stuff, it will want to be absent when we
138 * make a proper release.
140 static void cc_check(termline
*line
)
142 unsigned char *flags
;
145 assert(line
->size
>= line
->cols
);
147 flags
= snewn(line
->size
, unsigned char);
149 for (i
= 0; i
< line
->size
; i
++)
150 flags
[i
] = (i
< line
->cols
);
152 for (i
= 0; i
< line
->cols
; i
++) {
154 while (line
->chars
[j
].cc_next
) {
155 j
+= line
->chars
[j
].cc_next
;
156 assert(j
>= line
->cols
&& j
< line
->size
);
165 assert(j
>= line
->cols
&& j
< line
->size
);
168 if (line
->chars
[j
].cc_next
)
169 j
+= line
->chars
[j
].cc_next
;
176 for (i
= 0; i
< line
->size
; i
++)
177 j
+= (flags
[i
] != 0);
179 assert(j
== line
->size
);
185 * Add a combining character to a character cell.
187 static void add_cc(termline
*line
, int col
, unsigned long chr
)
191 assert(col
>= 0 && col
< line
->cols
);
194 * Start by extending the cols array if the free list is empty.
196 if (!line
->cc_free
) {
198 line
->size
+= 16 + (line
->size
- line
->cols
) / 2;
199 line
->chars
= sresize(line
->chars
, line
->size
, termchar
);
201 while (n
< line
->size
) {
202 if (n
+1 < line
->size
)
203 line
->chars
[n
].cc_next
= 1;
205 line
->chars
[n
].cc_next
= 0;
211 * Now walk the cc list of the cell in question.
213 while (line
->chars
[col
].cc_next
)
214 col
+= line
->chars
[col
].cc_next
;
217 * `col' now points at the last cc currently in this cell; so
218 * we simply add another one.
220 newcc
= line
->cc_free
;
221 if (line
->chars
[newcc
].cc_next
)
222 line
->cc_free
= newcc
+ line
->chars
[newcc
].cc_next
;
225 line
->chars
[newcc
].cc_next
= 0;
226 line
->chars
[newcc
].chr
= chr
;
227 line
->chars
[col
].cc_next
= newcc
- col
;
229 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
233 * Clear the combining character list in a character cell.
235 static void clear_cc(termline
*line
, int col
)
237 int oldfree
, origcol
= col
;
239 assert(col
>= 0 && col
< line
->cols
);
241 if (!line
->chars
[col
].cc_next
)
242 return; /* nothing needs doing */
244 oldfree
= line
->cc_free
;
245 line
->cc_free
= col
+ line
->chars
[col
].cc_next
;
246 while (line
->chars
[col
].cc_next
)
247 col
+= line
->chars
[col
].cc_next
;
249 line
->chars
[col
].cc_next
= oldfree
- col
;
251 line
->chars
[col
].cc_next
= 0;
253 line
->chars
[origcol
].cc_next
= 0;
255 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
259 * Compare two character cells for equality. Special case required
260 * in do_paint() where we override what we expect the chr and attr
263 static int termchars_equal_override(termchar
*a
, termchar
*b
,
264 unsigned long bchr
, unsigned long battr
)
269 if (a
->attr
!= battr
)
271 while (a
->cc_next
|| b
->cc_next
) {
272 if (!a
->cc_next
|| !b
->cc_next
)
273 return FALSE
; /* one cc-list ends, other does not */
276 if (a
->chr
!= b
->chr
)
282 static int termchars_equal(termchar
*a
, termchar
*b
)
284 return termchars_equal_override(a
, b
, b
->chr
, b
->attr
);
288 * Copy a character cell. (Requires a pointer to the destination
289 * termline, so as to access its free list.)
291 static void copy_termchar(termline
*destline
, int x
, termchar
*src
)
293 clear_cc(destline
, x
);
295 destline
->chars
[x
] = *src
; /* copy everything except cc-list */
296 destline
->chars
[x
].cc_next
= 0; /* and make sure this is zero */
298 while (src
->cc_next
) {
300 add_cc(destline
, x
, src
->chr
);
303 cc_check(destline
); /* XXX-REMOVE-BEFORE-RELEASE */
307 * Move a character cell within its termline.
309 static void move_termchar(termline
*line
, termchar
*dest
, termchar
*src
)
311 /* First clear the cc list from the original char, just in case. */
312 clear_cc(line
, dest
- line
->chars
);
314 /* Move the character cell and adjust its cc_next. */
315 *dest
= *src
; /* copy everything except cc-list */
317 dest
->cc_next
= src
->cc_next
- (dest
-src
);
319 /* Ensure the original cell doesn't have a cc list. */
322 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
326 * Compress and decompress a termline into an RLE-based format for
327 * storing in scrollback. (Since scrollback almost never needs to
328 * be modified and exists in huge quantities, this is a sensible
329 * tradeoff, particularly since it allows us to continue adding
330 * features to the main termchar structure without proportionally
331 * bloating the terminal emulator's memory footprint unless those
332 * features are in constant use.)
338 static void add(struct buf
*b
, unsigned char c
)
340 if (b
->len
>= b
->size
) {
341 b
->size
= (b
->len
* 3 / 2) + 512;
342 b
->data
= sresize(b
->data
, b
->size
, unsigned char);
344 b
->data
[b
->len
++] = c
;
346 static int get(struct buf
*b
)
348 return b
->data
[b
->len
++];
350 static void makerle(struct buf
*b
, termline
*ldata
,
351 void (*makeliteral
)(struct buf
*b
, termchar
*c
,
352 unsigned long *state
))
354 int hdrpos
, hdrsize
, n
, prevlen
, prevpos
, thislen
, thispos
, prev2
;
355 termchar
*c
= ldata
->chars
;
356 unsigned long state
= 0, oldstate
;
363 prevlen
= prevpos
= 0;
368 makeliteral(b
, c
++, &state
);
369 thislen
= b
->len
- thispos
;
370 if (thislen
== prevlen
&&
371 !memcmp(b
->data
+ prevpos
, b
->data
+ thispos
, thislen
)) {
373 * This literal precisely matches the previous one.
374 * Turn it into a run if it's worthwhile.
376 * With one-byte literals, it costs us two bytes to
377 * encode a run, plus another byte to write the header
378 * to resume normal output; so a three-element run is
379 * neutral, and anything beyond that is unconditionally
380 * worthwhile. With two-byte literals or more, even a
383 if (thislen
> 1 || prev2
) {
387 * It's worth encoding a run. Start at prevpos,
388 * unless hdrsize==0 in which case we can back up
389 * another one and start by overwriting hdrpos.
392 hdrsize
--; /* remove the literal at prevpos */
396 prevpos
-= prevlen
;/* and possibly another one */
400 assert(prevpos
== hdrpos
+ 1);
402 b
->len
= prevpos
+prevlen
;
404 memmove(b
->data
+ prevpos
+1, b
->data
+ prevpos
, prevlen
);
406 b
->len
= prevpos
+prevlen
+1;
408 * Terminate the previous run of ordinary
411 assert(hdrsize
>= 1 && hdrsize
<= 128);
412 b
->data
[hdrpos
] = hdrsize
- 1;
415 runlen
= prev2 ?
3 : 2;
417 while (n
> 0 && runlen
< 129) {
421 makeliteral(b
, c
, &state
);
422 tmplen
= b
->len
- tmppos
;
424 if (tmplen
!= thislen
||
425 memcmp(b
->data
+ runpos
+1, b
->data
+ tmppos
, tmplen
)) {
427 break; /* run over */
432 assert(runlen
>= 2 && runlen
<= 129);
433 b
->data
[runpos
] = runlen
+ 0x80 - 2;
438 /* And ensure this run doesn't interfere with the next. */
439 prevlen
= prevpos
= 0;
445 * Just flag that the previous two literals were
446 * identical, in case we find a third identical one
447 * we want to turn into a run.
460 * This character isn't (yet) part of a run. Add it to
464 if (hdrsize
== 128) {
465 b
->data
[hdrpos
] = hdrsize
- 1;
469 prevlen
= prevpos
= 0;
478 assert(hdrsize
<= 128);
479 b
->data
[hdrpos
] = hdrsize
- 1;
484 static void makeliteral_chr(struct buf
*b
, termchar
*c
, unsigned long *state
)
487 * My encoding for characters is UTF-8-like, in that it stores
488 * 7-bit ASCII in one byte and uses high-bit-set bytes as
489 * introducers to indicate a longer sequence. However, it's
490 * unlike UTF-8 in that it doesn't need to be able to
491 * resynchronise, and therefore I don't want to waste two bits
492 * per byte on having recognisable continuation characters.
493 * Also I don't want to rule out the possibility that I may one
494 * day use values 0x80000000-0xFFFFFFFF for interesting
495 * purposes, so unlike UTF-8 I need a full 32-bit range.
496 * Accordingly, here is my encoding:
498 * 00000000-0000007F: 0xxxxxxx (but see below)
499 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
500 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
501 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
502 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
504 * (`Z' is like `x' but is always going to be zero since the
505 * values I'm encoding don't go above 2^32. In principle the
506 * five-byte form of the encoding could extend to 2^35, and
507 * there could be six-, seven-, eight- and nine-byte forms as
508 * well to allow up to 64-bit values to be encoded. But that's
509 * completely unnecessary for these purposes!)
511 * The encoding as written above would be very simple, except
512 * that 7-bit ASCII can occur in several different ways in the
513 * terminal data; sometimes it crops up in the D800 page
514 * (CSET_ASCII) but at other times it's in the 0000 page (real
515 * Unicode). Therefore, this encoding is actually _stateful_:
516 * the one-byte encoding of 00-7F actually indicates `reuse the
517 * upper three bytes of the last character', and to encode an
518 * absolute value of 00-7F you need to use the two-byte form
521 if ((c
->chr
& ~0x7F) == *state
) {
522 add(b
, (unsigned char)(c
->chr
& 0x7F));
523 } else if (c
->chr
< 0x4000) {
524 add(b
, (unsigned char)(((c
->chr
>> 8) & 0x3F) | 0x80));
525 add(b
, (unsigned char)(c
->chr
& 0xFF));
526 } else if (c
->chr
< 0x200000) {
527 add(b
, (unsigned char)(((c
->chr
>> 16) & 0x1F) | 0xC0));
528 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
529 add(b
, (unsigned char)(c
->chr
& 0xFF));
530 } else if (c
->chr
< 0x10000000) {
531 add(b
, (unsigned char)(((c
->chr
>> 24) & 0x0F) | 0xE0));
532 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
533 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
534 add(b
, (unsigned char)(c
->chr
& 0xFF));
537 add(b
, (unsigned char)((c
->chr
>> 24) & 0xFF));
538 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
539 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
540 add(b
, (unsigned char)(c
->chr
& 0xFF));
542 *state
= c
->chr
& ~0xFF;
544 static void makeliteral_attr(struct buf
*b
, termchar
*c
, unsigned long *state
)
547 * My encoding for attributes is 16-bit-granular and assumes
548 * that the top bit of the word is never required. I either
549 * store a two-byte value with the top bit clear (indicating
550 * just that value), or a four-byte value with the top bit set
551 * (indicating the same value with its top bit clear).
553 if (c
->attr
< 0x8000) {
554 add(b
, (unsigned char)((c
->attr
>> 8) & 0xFF));
555 add(b
, (unsigned char)(c
->attr
& 0xFF));
557 add(b
, (unsigned char)(((c
->attr
>> 24) & 0x7F) | 0x80));
558 add(b
, (unsigned char)((c
->attr
>> 16) & 0xFF));
559 add(b
, (unsigned char)((c
->attr
>> 8) & 0xFF));
560 add(b
, (unsigned char)(c
->attr
& 0xFF));
563 static void makeliteral_cc(struct buf
*b
, termchar
*c
, unsigned long *state
)
566 * For combining characters, I just encode a bunch of ordinary
567 * chars using makeliteral_chr, and terminate with a \0
568 * character (which I know won't come up as a combining char
571 * I don't use the stateful encoding in makeliteral_chr.
573 unsigned long zstate
;
582 makeliteral_chr(b
, c
, &zstate
);
587 makeliteral_chr(b
, &z
, &zstate
);
590 static termline
*decompressline(unsigned char *data
, int *bytes_used
);
592 static unsigned char *compressline(termline
*ldata
)
594 struct buf buffer
= { NULL
, 0, 0 }, *b
= &buffer
;
597 * First, store the column count, 7 bits at a time, least
598 * significant `digit' first, with the high bit set on all but
604 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
607 add(b
, (unsigned char)(n
));
611 * Next store the lattrs; same principle.
614 int n
= ldata
->lattr
;
616 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
619 add(b
, (unsigned char)(n
));
623 * Now we store a sequence of separate run-length encoded
624 * fragments, each containing exactly as many symbols as there
625 * are columns in the ldata.
627 * All of these have a common basic format:
629 * - a byte 00-7F indicates that X+1 literals follow it
630 * - a byte 80-FF indicates that a single literal follows it
631 * and expects to be repeated (X-0x80)+2 times.
633 * The format of the `literals' varies between the fragments.
635 makerle(b
, ldata
, makeliteral_chr
);
636 makerle(b
, ldata
, makeliteral_attr
);
637 makerle(b
, ldata
, makeliteral_cc
);
640 * Diagnostics: ensure that the compressed data really does
641 * decompress to the right thing.
643 * XXX-REMOVE-BEFORE-RELEASE: This is a bit performance-heavy
644 * to be leaving in production code.
646 #ifndef CHECK_SB_COMPRESSION
652 #ifdef DIAGNOSTIC_SB_COMPRESSION
653 for (i
= 0; i
< b
->len
; i
++) {
654 printf(" %02x ", b
->data
[i
]);
659 dcl
= decompressline(b
->data
, &dused
);
660 assert(b
->len
== dused
);
661 assert(ldata
->cols
== dcl
->cols
);
662 assert(ldata
->lattr
== dcl
->lattr
);
663 for (i
= 0; i
< ldata
->cols
; i
++)
664 assert(termchars_equal(&ldata
->chars
[i
], &dcl
->chars
[i
]));
666 #ifdef DIAGNOSTIC_SB_COMPRESSION
667 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
668 ldata
->cols
, 4 * ldata
->cols
, dused
,
669 (double)dused
/ (4 * ldata
->cols
));
677 * Trim the allocated memory so we don't waste any, and return.
679 return sresize(b
->data
, b
->len
, unsigned char);
682 static void readrle(struct buf
*b
, termline
*ldata
,
683 void (*readliteral
)(struct buf
*b
, termchar
*c
,
684 termline
*ldata
, unsigned long *state
))
687 unsigned long state
= 0;
689 while (n
< ldata
->cols
) {
695 int pos
= b
->len
, count
= hdr
+ 2 - 0x80;
697 assert(n
< ldata
->cols
);
699 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
703 /* Just a sequence of consecutive literals. */
707 assert(n
< ldata
->cols
);
708 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
714 assert(n
== ldata
->cols
);
716 static void readliteral_chr(struct buf
*b
, termchar
*c
, termline
*ldata
,
717 unsigned long *state
)
722 * 00000000-0000007F: 0xxxxxxx
723 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
724 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
725 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
726 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
731 c
->chr
= byte
| *state
;
732 } else if (byte
< 0xC0) {
733 c
->chr
= (byte
&~ 0xC0) << 8;
735 } else if (byte
< 0xE0) {
736 c
->chr
= (byte
&~ 0xE0) << 16;
737 c
->chr
|= get(b
) << 8;
739 } else if (byte
< 0xF0) {
740 c
->chr
= (byte
&~ 0xF0) << 24;
741 c
->chr
|= get(b
) << 16;
742 c
->chr
|= get(b
) << 8;
745 assert(byte
== 0xF0);
746 c
->chr
= get(b
) << 24;
747 c
->chr
|= get(b
) << 16;
748 c
->chr
|= get(b
) << 8;
751 *state
= c
->chr
& ~0xFF;
753 static void readliteral_attr(struct buf
*b
, termchar
*c
, termline
*ldata
,
754 unsigned long *state
)
769 static void readliteral_cc(struct buf
*b
, termchar
*c
, termline
*ldata
,
770 unsigned long *state
)
773 unsigned long zstate
;
774 int x
= c
- ldata
->chars
;
780 readliteral_chr(b
, &n
, ldata
, &zstate
);
783 add_cc(ldata
, x
, n
.chr
);
787 static termline
*decompressline(unsigned char *data
, int *bytes_used
)
789 int ncols
, byte
, shift
;
790 struct buf buffer
, *b
= &buffer
;
797 * First read in the column count.
802 ncols
|= (byte
& 0x7F) << shift
;
804 } while (byte
& 0x80);
807 * Now create the output termline.
809 ldata
= snew(termline
);
810 ldata
->chars
= snewn(ncols
, termchar
);
811 ldata
->cols
= ldata
->size
= ncols
;
812 ldata
->temporary
= TRUE
;
816 * We must set all the cc pointers in ldata->chars to 0 right
817 * now, so that cc diagnostics that verify the integrity of the
818 * whole line will make sense while we're in the middle of
823 for (i
= 0; i
< ldata
->cols
; i
++)
824 ldata
->chars
[i
].cc_next
= 0;
828 * Now read in the lattr.
830 ldata
->lattr
= shift
= 0;
833 ldata
->lattr
|= (byte
& 0x7F) << shift
;
835 } while (byte
& 0x80);
838 * Now we read in each of the RLE streams in turn.
840 readrle(b
, ldata
, readliteral_chr
);
841 readrle(b
, ldata
, readliteral_attr
);
842 readrle(b
, ldata
, readliteral_cc
);
844 /* Return the number of bytes read, for diagnostic purposes. */
846 *bytes_used
= b
->len
;
852 * Resize a line to make it `cols' columns wide.
854 static void resizeline(Terminal
*term
, termline
*line
, int cols
)
858 if (line
->cols
!= cols
) {
860 oldcols
= line
->cols
;
863 * This line is the wrong length, which probably means it
864 * hasn't been accessed since a resize. Resize it now.
866 * First, go through all the characters that will be thrown
867 * out in the resize (if we're shrinking the line) and
868 * return their cc lists to the cc free list.
870 for (i
= cols
; i
< oldcols
; i
++)
874 * If we're shrinking the line, we now bodily move the
875 * entire cc section from where it started to where it now
876 * needs to be. (We have to do this before the resize, so
877 * that the data we're copying is still there. However, if
878 * we're expanding, we have to wait until _after_ the
879 * resize so that the space we're copying into is there.)
882 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
883 (line
->size
- line
->cols
) * TSIZE
);
886 * Now do the actual resize, leaving the _same_ amount of
887 * cc space as there was to begin with.
889 line
->size
+= cols
- oldcols
;
890 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
894 * If we're expanding the line, _now_ we move the cc
898 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
899 (line
->size
- line
->cols
) * TSIZE
);
902 * Go through what's left of the original line, and adjust
903 * the first cc_next pointer in each list. (All the
904 * subsequent ones are still valid because they are
905 * relative offsets within the cc block.) Also do the same
906 * to the head of the cc_free list.
908 for (i
= 0; i
< oldcols
&& i
< cols
; i
++)
909 if (line
->chars
[i
].cc_next
)
910 line
->chars
[i
].cc_next
+= cols
- oldcols
;
912 line
->cc_free
+= cols
- oldcols
;
915 * And finally fill in the new space with erase chars. (We
916 * don't have to worry about cc lists here, because we
917 * _know_ the erase char doesn't have one.)
919 for (i
= oldcols
; i
< cols
; i
++)
920 line
->chars
[i
] = term
->basic_erase_char
;
922 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
927 * Get the number of lines in the scrollback.
929 static int sblines(Terminal
*term
)
931 int sblines
= count234(term
->scrollback
);
932 if (term
->cfg
.erase_to_scrollback
&&
933 term
->alt_which
&& term
->alt_screen
) {
934 sblines
+= term
->alt_sblines
;
940 * Retrieve a line of the screen or of the scrollback, according to
941 * whether the y coordinate is non-negative or negative
944 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
951 whichtree
= term
->screen
;
958 if (term
->cfg
.erase_to_scrollback
&&
959 term
->alt_which
&& term
->alt_screen
) {
960 altlines
= term
->alt_sblines
;
963 whichtree
= term
->scrollback
;
964 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
966 whichtree
= term
->alt_screen
;
967 treeindex
= y
+ term
->alt_sblines
;
968 /* treeindex = y + count234(term->alt_screen); */
971 if (whichtree
== term
->scrollback
) {
972 unsigned char *cline
= index234(whichtree
, treeindex
);
973 line
= decompressline(cline
, NULL
);
975 line
= index234(whichtree
, treeindex
);
978 /* We assume that we don't screw up and retrieve something out of range. */
979 assert(line
!= NULL
);
981 resizeline(term
, line
, term
->cols
);
982 /* FIXME: should we sort the compressed scrollback out here? */
987 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
988 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
991 * Set up power-on settings for the terminal.
993 static void power_on(Terminal
*term
)
995 term
->curs
.x
= term
->curs
.y
= 0;
996 term
->alt_x
= term
->alt_y
= 0;
997 term
->savecurs
.x
= term
->savecurs
.y
= 0;
998 term
->alt_t
= term
->marg_t
= 0;
999 if (term
->rows
!= -1)
1000 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1002 term
->alt_b
= term
->marg_b
= 0;
1003 if (term
->cols
!= -1) {
1005 for (i
= 0; i
< term
->cols
; i
++)
1006 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1008 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1009 term
->alt_ins
= term
->insert
= FALSE
;
1010 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
1011 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1012 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
1013 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
1014 term
->utf_state
= 0;
1015 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
1016 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= CSET_ASCII
;
1018 term
->in_vbell
= FALSE
;
1019 term
->cursor_on
= 1;
1020 term
->big_cursor
= 0;
1021 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
1022 term
->term_editing
= term
->term_echoing
= FALSE
;
1023 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1024 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1025 term
->use_bce
= term
->cfg
.bce
;
1026 term
->blink_is_real
= term
->cfg
.blinktext
;
1027 term
->erase_char
= term
->basic_erase_char
;
1028 term
->alt_which
= 0;
1029 term_print_finish(term
);
1032 for (i
= 0; i
< 256; i
++)
1033 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1036 swap_screen(term
, 1, FALSE
, FALSE
);
1037 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1038 swap_screen(term
, 0, FALSE
, FALSE
);
1039 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1044 * Force a screen update.
1046 void term_update(Terminal
*term
)
1049 ctx
= get_ctx(term
->frontend
);
1051 int need_sbar_update
= term
->seen_disp_event
;
1052 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1053 term
->disptop
= 0; /* return to main screen */
1054 term
->seen_disp_event
= 0;
1055 need_sbar_update
= TRUE
;
1058 if (need_sbar_update
)
1060 do_paint(term
, ctx
, TRUE
);
1061 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1067 * Called from front end when a keypress occurs, to trigger
1068 * anything magical that needs to happen in that situation.
1070 void term_seen_key_event(Terminal
*term
)
1073 * On any keypress, clear the bell overload mechanism
1074 * completely, on the grounds that large numbers of
1075 * beeps coming from deliberate key action are likely
1076 * to be intended (e.g. beeps from filename completion
1077 * blocking repeatedly).
1079 term
->beep_overloaded
= FALSE
;
1080 while (term
->beephead
) {
1081 struct beeptime
*tmp
= term
->beephead
;
1082 term
->beephead
= tmp
->next
;
1085 term
->beeptail
= NULL
;
1089 * Reset the scrollback on keypress, if we're doing that.
1091 if (term
->cfg
.scroll_on_key
) {
1092 term
->disptop
= 0; /* return to main screen */
1093 term
->seen_disp_event
= 1;
1098 * Same as power_on(), but an external function.
1100 void term_pwron(Terminal
*term
)
1103 if (term
->ldisc
) /* cause ldisc to notice changes */
1104 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1110 static void set_erase_char(Terminal
*term
)
1112 term
->erase_char
= term
->basic_erase_char
;
1114 term
->erase_char
.attr
= (term
->curr_attr
&
1115 (ATTR_FGMASK
| ATTR_BGMASK
));
1119 * When the user reconfigures us, we need to check the forbidden-
1120 * alternate-screen config option, disable raw mouse mode if the
1121 * user has disabled mouse reporting, and abandon a print job if
1122 * the user has disabled printing.
1124 void term_reconfig(Terminal
*term
, Config
*cfg
)
1127 * Before adopting the new config, check all those terminal
1128 * settings which control power-on defaults; and if they've
1129 * changed, we will modify the current state as well as the
1130 * default one. The full list is: Auto wrap mode, DEC Origin
1131 * Mode, BCE, blinking text, character classes.
1133 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
1136 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1137 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1138 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1139 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1140 reset_charclass
= 0;
1141 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1142 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1143 reset_charclass
= 1;
1146 * If the bidi or shaping settings have changed, flush the bidi
1149 if (term
->cfg
.arabicshaping
!= cfg
->arabicshaping
||
1150 term
->cfg
.bidi
!= cfg
->bidi
) {
1151 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1152 sfree(term
->pre_bidi_cache
[i
].chars
);
1153 sfree(term
->post_bidi_cache
[i
].chars
);
1154 term
->pre_bidi_cache
[i
].width
= -1;
1155 term
->pre_bidi_cache
[i
].chars
= NULL
;
1156 term
->post_bidi_cache
[i
].width
= -1;
1157 term
->post_bidi_cache
[i
].chars
= NULL
;
1161 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1164 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1166 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1168 term
->use_bce
= term
->cfg
.bce
;
1169 set_erase_char(term
);
1172 term
->blink_is_real
= term
->cfg
.blinktext
;
1173 if (reset_charclass
)
1174 for (i
= 0; i
< 256; i
++)
1175 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1177 if (term
->cfg
.no_alt_screen
)
1178 swap_screen(term
, 0, FALSE
, FALSE
);
1179 if (term
->cfg
.no_mouse_rep
) {
1180 term
->xterm_mouse
= 0;
1181 set_raw_mouse_mode(term
->frontend
, 0);
1183 if (term
->cfg
.no_remote_charset
) {
1184 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1185 term
->sco_acs
= term
->alt_sco_acs
= 0;
1188 if (!*term
->cfg
.printer
) {
1189 term_print_finish(term
);
1194 * Clear the scrollback.
1196 void term_clrsb(Terminal
*term
)
1200 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1201 sfree(line
); /* this is compressed data, not a termline */
1203 term
->tempsblines
= 0;
1204 term
->alt_sblines
= 0;
1209 * Initialise the terminal.
1211 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1217 * Allocate a new Terminal structure and initialise the fields
1220 term
= snew(Terminal
);
1221 term
->frontend
= frontend
;
1222 term
->ucsdata
= ucsdata
;
1223 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1224 term
->logctx
= NULL
;
1225 term
->compatibility_level
= TM_PUTTY
;
1226 strcpy(term
->id_string
, "\033[?6c");
1227 term
->last_blink
= term
->last_tblink
= 0;
1228 term
->paste_buffer
= NULL
;
1229 term
->paste_len
= 0;
1230 term
->last_paste
= 0;
1231 bufchain_init(&term
->inbuf
);
1232 bufchain_init(&term
->printer_buf
);
1233 term
->printing
= term
->only_printing
= FALSE
;
1234 term
->print_job
= NULL
;
1235 term
->vt52_mode
= FALSE
;
1236 term
->cr_lf_return
= FALSE
;
1237 term
->seen_disp_event
= FALSE
;
1238 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1239 term
->reset_132
= FALSE
;
1240 term
->blinker
= term
->tblinker
= 0;
1241 term
->has_focus
= 1;
1242 term
->repeat_off
= FALSE
;
1243 term
->termstate
= TOPLEVEL
;
1244 term
->selstate
= NO_SELECTION
;
1247 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1248 term
->tempsblines
= 0;
1249 term
->alt_sblines
= 0;
1251 term
->disptext
= NULL
;
1252 term
->dispcursx
= term
->dispcursy
= -1;
1255 term
->rows
= term
->cols
= -1;
1257 term
->beephead
= term
->beeptail
= NULL
;
1258 #ifdef OPTIMISE_SCROLL
1259 term
->scrollhead
= term
->scrolltail
= NULL
;
1260 #endif /* OPTIMISE_SCROLL */
1262 term
->lastbeep
= FALSE
;
1263 term
->beep_overloaded
= FALSE
;
1264 term
->attr_mask
= 0xffffffff;
1265 term
->resize_fn
= NULL
;
1266 term
->resize_ctx
= NULL
;
1267 term
->in_term_out
= FALSE
;
1269 term
->ltemp_size
= 0;
1270 term
->wcFrom
= NULL
;
1272 term
->wcFromTo_size
= 0;
1274 term
->bidi_cache_size
= 0;
1275 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1278 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1279 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1280 term
->basic_erase_char
.cc_next
= 0;
1281 term
->erase_char
= term
->basic_erase_char
;
1286 void term_free(Terminal
*term
)
1289 struct beeptime
*beep
;
1292 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1293 sfree(line
); /* compressed data, not a termline */
1294 freetree234(term
->scrollback
);
1295 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1297 freetree234(term
->screen
);
1298 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1300 freetree234(term
->alt_screen
);
1301 if (term
->disptext
) {
1302 for (i
= 0; i
< term
->rows
; i
++)
1303 freeline(term
->disptext
[i
]);
1305 sfree(term
->disptext
);
1306 while (term
->beephead
) {
1307 beep
= term
->beephead
;
1308 term
->beephead
= beep
->next
;
1311 bufchain_clear(&term
->inbuf
);
1313 printer_finish_job(term
->print_job
);
1314 bufchain_clear(&term
->printer_buf
);
1315 sfree(term
->paste_buffer
);
1317 sfree(term
->wcFrom
);
1320 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1321 sfree(term
->pre_bidi_cache
[i
].chars
);
1322 sfree(term
->post_bidi_cache
[i
].chars
);
1324 sfree(term
->pre_bidi_cache
);
1325 sfree(term
->post_bidi_cache
);
1331 * Set up the terminal for a given size.
1333 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1336 termline
**newdisp
, *line
;
1337 int i
, j
, oldrows
= term
->rows
;
1339 int save_alt_which
= term
->alt_which
;
1341 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1342 newsavelines
== term
->savelines
)
1343 return; /* nothing to do */
1346 swap_screen(term
, 0, FALSE
, FALSE
);
1348 term
->alt_t
= term
->marg_t
= 0;
1349 term
->alt_b
= term
->marg_b
= newrows
- 1;
1351 if (term
->rows
== -1) {
1352 term
->scrollback
= newtree234(NULL
);
1353 term
->screen
= newtree234(NULL
);
1354 term
->tempsblines
= 0;
1359 * Resize the screen and scrollback. We only need to shift
1360 * lines around within our data structures, because lineptr()
1361 * will take care of resizing each individual line if
1364 * - If the new screen is longer, we shunt lines in from temporary
1365 * scrollback if possible, otherwise we add new blank lines at
1368 * - If the new screen is shorter, we remove any blank lines at
1369 * the bottom if possible, otherwise shunt lines above the cursor
1370 * to scrollback if possible, otherwise delete lines below the
1373 * - Then, if the new scrollback length is less than the
1374 * amount of scrollback we actually have, we must throw some
1377 sblen
= count234(term
->scrollback
);
1378 /* Do this loop to expand the screen if newrows > rows */
1379 assert(term
->rows
== count234(term
->screen
));
1380 while (term
->rows
< newrows
) {
1381 if (term
->tempsblines
> 0) {
1382 unsigned char *cline
;
1383 /* Insert a line from the scrollback at the top of the screen. */
1384 assert(sblen
>= term
->tempsblines
);
1385 cline
= delpos234(term
->scrollback
, --sblen
);
1386 line
= decompressline(cline
, NULL
);
1388 line
->temporary
= FALSE
; /* reconstituted line is now real */
1389 term
->tempsblines
-= 1;
1390 addpos234(term
->screen
, line
, 0);
1392 term
->savecurs
.y
+= 1;
1394 /* Add a new blank line at the bottom of the screen. */
1395 line
= newline(term
, newcols
, FALSE
);
1396 addpos234(term
->screen
, line
, count234(term
->screen
));
1400 /* Do this loop to shrink the screen if newrows < rows */
1401 while (term
->rows
> newrows
) {
1402 if (term
->curs
.y
< term
->rows
- 1) {
1403 /* delete bottom row, unless it contains the cursor */
1404 sfree(delpos234(term
->screen
, term
->rows
- 1));
1406 /* push top row to scrollback */
1407 line
= delpos234(term
->screen
, 0);
1408 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1410 term
->tempsblines
+= 1;
1412 term
->savecurs
.y
-= 1;
1416 assert(term
->rows
== newrows
);
1417 assert(count234(term
->screen
) == newrows
);
1419 /* Delete any excess lines from the scrollback. */
1420 while (sblen
> newsavelines
) {
1421 line
= delpos234(term
->scrollback
, 0);
1425 if (sblen
< term
->tempsblines
)
1426 term
->tempsblines
= sblen
;
1427 assert(count234(term
->scrollback
) <= newsavelines
);
1428 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1431 /* Make a new displayed text buffer. */
1432 newdisp
= snewn(newrows
, termline
*);
1433 for (i
= 0; i
< newrows
; i
++) {
1434 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1435 for (j
= 0; j
< newcols
; j
++)
1436 newdisp
[i
]->chars
[i
].attr
= ATTR_INVALID
;
1438 if (term
->disptext
) {
1439 for (i
= 0; i
< oldrows
; i
++)
1440 freeline(term
->disptext
[i
]);
1442 sfree(term
->disptext
);
1443 term
->disptext
= newdisp
;
1444 term
->dispcursx
= term
->dispcursy
= -1;
1446 /* Make a new alternate screen. */
1447 newalt
= newtree234(NULL
);
1448 for (i
= 0; i
< newrows
; i
++) {
1449 line
= newline(term
, newcols
, TRUE
);
1450 addpos234(newalt
, line
, i
);
1452 if (term
->alt_screen
) {
1453 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1455 freetree234(term
->alt_screen
);
1457 term
->alt_screen
= newalt
;
1458 term
->alt_sblines
= 0;
1460 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1463 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1464 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1467 /* Check that the cursor positions are still valid. */
1468 if (term
->savecurs
.y
< 0)
1469 term
->savecurs
.y
= 0;
1470 if (term
->savecurs
.y
>= newrows
)
1471 term
->savecurs
.y
= newrows
- 1;
1472 if (term
->curs
.y
< 0)
1474 if (term
->curs
.y
>= newrows
)
1475 term
->curs
.y
= newrows
- 1;
1476 if (term
->curs
.x
>= newcols
)
1477 term
->curs
.x
= newcols
- 1;
1478 term
->alt_x
= term
->alt_y
= 0;
1479 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1481 term
->rows
= newrows
;
1482 term
->cols
= newcols
;
1483 term
->savelines
= newsavelines
;
1485 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1489 if (term
->resize_fn
)
1490 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1494 * Hand a function and context pointer to the terminal which it can
1495 * use to notify a back end of resizes.
1497 void term_provide_resize_fn(Terminal
*term
,
1498 void (*resize_fn
)(void *, int, int),
1501 term
->resize_fn
= resize_fn
;
1502 term
->resize_ctx
= resize_ctx
;
1503 if (term
->cols
> 0 && term
->rows
> 0)
1504 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1507 /* Find the bottom line on the screen that has any content.
1508 * If only the top line has content, returns 0.
1509 * If no lines have content, return -1.
1511 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1514 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1515 termline
*line
= index234(screen
, i
);
1517 for (j
= 0; j
< line
->cols
; j
++)
1518 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1520 if (j
!= line
->cols
) break;
1526 * Swap screens. If `reset' is TRUE and we have been asked to
1527 * switch to the alternate screen, we must bring most of its
1528 * configuration from the main screen and erase the contents of the
1529 * alternate screen completely. (This is even true if we're already
1530 * on it! Blame xterm.)
1532 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1538 reset
= FALSE
; /* do no weird resetting if which==0 */
1540 if (which
!= term
->alt_which
) {
1541 term
->alt_which
= which
;
1543 ttr
= term
->alt_screen
;
1544 term
->alt_screen
= term
->screen
;
1546 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1548 if (!reset
&& !keep_cur_pos
)
1549 term
->curs
.x
= term
->alt_x
;
1552 if (!reset
&& !keep_cur_pos
)
1553 term
->curs
.y
= term
->alt_y
;
1556 if (!reset
) term
->marg_t
= term
->alt_t
;
1559 if (!reset
) term
->marg_b
= term
->alt_b
;
1562 if (!reset
) term
->dec_om
= term
->alt_om
;
1565 if (!reset
) term
->wrap
= term
->alt_wrap
;
1568 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1569 term
->alt_wnext
= t
;
1571 if (!reset
) term
->insert
= term
->alt_ins
;
1574 if (!reset
) term
->cset
= term
->alt_cset
;
1577 if (!reset
) term
->utf
= term
->alt_utf
;
1580 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1581 term
->alt_sco_acs
= t
;
1584 if (reset
&& term
->screen
) {
1586 * Yes, this _is_ supposed to honour background-colour-erase.
1588 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1593 * Update the scroll bar.
1595 static void update_sbar(Terminal
*term
)
1597 int nscroll
= sblines(term
);
1598 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1599 nscroll
+ term
->disptop
, term
->rows
);
1603 * Check whether the region bounded by the two pointers intersects
1604 * the scroll region, and de-select the on-screen selection if so.
1606 static void check_selection(Terminal
*term
, pos from
, pos to
)
1608 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1613 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1614 * for backward.) `sb' is TRUE if the scrolling is permitted to
1615 * affect the scrollback buffer.
1617 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1620 int i
, seltop
, olddisptop
, shift
;
1622 if (topline
!= 0 || term
->alt_which
!= 0)
1625 olddisptop
= term
->disptop
;
1629 line
= delpos234(term
->screen
, botline
);
1630 resizeline(term
, line
, term
->cols
);
1631 for (i
= 0; i
< term
->cols
; i
++)
1632 copy_termchar(line
, i
, &term
->erase_char
);
1633 line
->lattr
= LATTR_NORM
;
1634 addpos234(term
->screen
, line
, topline
);
1636 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1638 if (term
->selstart
.y
> botline
) {
1639 term
->selstart
.y
= botline
+ 1;
1640 term
->selstart
.x
= 0;
1643 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1645 if (term
->selend
.y
> botline
) {
1646 term
->selend
.y
= botline
+ 1;
1655 line
= delpos234(term
->screen
, topline
);
1656 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
1657 if (sb
&& term
->savelines
> 0) {
1658 int sblen
= count234(term
->scrollback
);
1660 * We must add this line to the scrollback. We'll
1661 * remove a line from the top of the scrollback if
1662 * the scrollback is full.
1664 if (sblen
== term
->savelines
) {
1665 unsigned char *cline
;
1668 cline
= delpos234(term
->scrollback
, 0);
1671 term
->tempsblines
+= 1;
1673 addpos234(term
->scrollback
, compressline(line
), sblen
);
1675 /* now `line' itself can be reused as the bottom line */
1678 * If the user is currently looking at part of the
1679 * scrollback, and they haven't enabled any options
1680 * that are going to reset the scrollback as a
1681 * result of this movement, then the chances are
1682 * they'd like to keep looking at the same line. So
1683 * we move their viewpoint at the same rate as the
1684 * scroll, at least until their viewpoint hits the
1685 * top end of the scrollback buffer, at which point
1686 * we don't have the choice any more.
1688 * Thanks to Jan Holmen Holsten for the idea and
1689 * initial implementation.
1691 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1694 resizeline(term
, line
, term
->cols
);
1695 for (i
= 0; i
< term
->cols
; i
++)
1696 copy_termchar(line
, i
, &term
->erase_char
);
1697 line
->lattr
= LATTR_NORM
;
1698 addpos234(term
->screen
, line
, botline
);
1701 * If the selection endpoints move into the scrollback,
1702 * we keep them moving until they hit the top. However,
1703 * of course, if the line _hasn't_ moved into the
1704 * scrollback then we don't do this, and cut them off
1705 * at the top of the scroll region.
1707 * This applies to selstart and selend (for an existing
1708 * selection), and also selanchor (for one being
1709 * selected as we speak).
1711 seltop
= sb ?
-term
->savelines
: topline
;
1713 if (term
->selstate
!= NO_SELECTION
) {
1714 if (term
->selstart
.y
>= seltop
&&
1715 term
->selstart
.y
<= botline
) {
1717 if (term
->selstart
.y
< seltop
) {
1718 term
->selstart
.y
= seltop
;
1719 term
->selstart
.x
= 0;
1722 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1724 if (term
->selend
.y
< seltop
) {
1725 term
->selend
.y
= seltop
;
1729 if (term
->selanchor
.y
>= seltop
&&
1730 term
->selanchor
.y
<= botline
) {
1731 term
->selanchor
.y
--;
1732 if (term
->selanchor
.y
< seltop
) {
1733 term
->selanchor
.y
= seltop
;
1734 term
->selanchor
.x
= 0;
1742 #ifdef OPTIMISE_SCROLL
1743 shift
+= term
->disptop
- olddisptop
;
1744 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1745 scroll_display(term
, topline
, botline
, shift
);
1746 #endif /* OPTIMISE_SCROLL */
1749 #ifdef OPTIMISE_SCROLL
1751 * Add a scroll of a region on the screen into the pending scroll list.
1752 * `lines' is +ve for scrolling forward, -ve for backward.
1754 * If the scroll is on the same area as the last scroll in the list,
1757 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
1759 struct scrollregion
*newscroll
;
1760 if (term
->scrolltail
&&
1761 term
->scrolltail
->topline
== topline
&&
1762 term
->scrolltail
->botline
== botline
) {
1763 term
->scrolltail
->lines
+= lines
;
1765 newscroll
= snew(struct scrollregion
);
1766 newscroll
->topline
= topline
;
1767 newscroll
->botline
= botline
;
1768 newscroll
->lines
= lines
;
1769 newscroll
->next
= NULL
;
1771 if (!term
->scrollhead
)
1772 term
->scrollhead
= newscroll
;
1774 term
->scrolltail
->next
= newscroll
;
1775 term
->scrolltail
= newscroll
;
1780 * Scroll the physical display, and our conception of it in disptext.
1782 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
1784 int distance
, nlines
, i
, j
;
1786 distance
= lines
> 0 ? lines
: -lines
;
1787 nlines
= botline
- topline
+ 1 - distance
;
1789 for (i
= 0; i
< nlines
; i
++)
1790 for (j
= 0; j
< term
->cols
; j
++)
1791 copy_termchar(term
->disptext
[start
+i
], j
,
1792 term
->disptext
[start
+i
+distance
]->chars
+j
);
1793 if (term
->dispcursy
>= 0 &&
1794 term
->dispcursy
>= topline
+ distance
&&
1795 term
->dispcursy
< topline
+ distance
+ nlines
)
1796 term
->dispcursy
-= distance
;
1797 for (i
= 0; i
< distance
; i
++)
1798 for (j
= 0; j
< term
->cols
; j
++)
1799 term
->disptext
[start
+nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1801 for (i
= nlines
; i
-- ;)
1802 for (j
= 0; j
< term
->cols
; j
++)
1803 copy_termchar(term
->disptext
[start
+i
+distance
], j
,
1804 term
->disptext
[start
+i
]->chars
+j
);
1805 if (term
->dispcursy
>= 0 &&
1806 term
->dispcursy
>= topline
&&
1807 term
->dispcursy
< topline
+ nlines
)
1808 term
->dispcursy
+= distance
;
1809 for (i
= 0; i
< distance
; i
++)
1810 for (j
= 0; j
< term
->cols
; j
++)
1811 term
->disptext
[start
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1813 save_scroll(term
, topline
, botline
, lines
);
1815 #endif /* OPTIMISE_SCROLL */
1818 * Move the cursor to a given position, clipping at boundaries. We
1819 * may or may not want to clip at the scroll margin: marg_clip is 0
1820 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
1821 * even _being_ outside the margins.
1823 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
1827 if (x
>= term
->cols
)
1830 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
1833 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
1839 if (y
>= term
->rows
)
1843 term
->wrapnext
= FALSE
;
1847 * Save or restore the cursor and SGR mode.
1849 static void save_cursor(Terminal
*term
, int save
)
1852 term
->savecurs
= term
->curs
;
1853 term
->save_attr
= term
->curr_attr
;
1854 term
->save_cset
= term
->cset
;
1855 term
->save_utf
= term
->utf
;
1856 term
->save_wnext
= term
->wrapnext
;
1857 term
->save_csattr
= term
->cset_attr
[term
->cset
];
1858 term
->save_sco_acs
= term
->sco_acs
;
1860 term
->curs
= term
->savecurs
;
1861 /* Make sure the window hasn't shrunk since the save */
1862 if (term
->curs
.x
>= term
->cols
)
1863 term
->curs
.x
= term
->cols
- 1;
1864 if (term
->curs
.y
>= term
->rows
)
1865 term
->curs
.y
= term
->rows
- 1;
1867 term
->curr_attr
= term
->save_attr
;
1868 term
->cset
= term
->save_cset
;
1869 term
->utf
= term
->save_utf
;
1870 term
->wrapnext
= term
->save_wnext
;
1872 * wrapnext might reset to False if the x position is no
1873 * longer at the rightmost edge.
1875 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
1876 term
->wrapnext
= FALSE
;
1877 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
1878 term
->sco_acs
= term
->save_sco_acs
;
1879 set_erase_char(term
);
1884 * This function is called before doing _anything_ which affects
1885 * only part of a line of text. It is used to mark the boundary
1886 * between two character positions, and it indicates that some sort
1887 * of effect is going to happen on only one side of that boundary.
1889 * The effect of this function is to check whether a CJK
1890 * double-width character is straddling the boundary, and to remove
1891 * it and replace it with two spaces if so. (Of course, one or
1892 * other of those spaces is then likely to be replaced with
1893 * something else again, as a result of whatever happens next.)
1895 * Also, if the boundary is at the right-hand _edge_ of the screen,
1896 * it implies something deliberate is being done to the rightmost
1897 * column position; hence we must clear LATTR_WRAPPED2.
1899 * The input to the function is the coordinates of the _second_
1900 * character of the pair.
1902 static void check_boundary(Terminal
*term
, int x
, int y
)
1906 /* Validate input coordinates, just in case. */
1907 if (x
== 0 || x
> term
->cols
)
1910 ldata
= scrlineptr(y
);
1911 if (x
== term
->cols
) {
1912 ldata
->lattr
&= ~LATTR_WRAPPED2
;
1914 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
1915 clear_cc(ldata
, x
-1);
1917 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
1918 ldata
->chars
[x
] = ldata
->chars
[x
-1];
1924 * Erase a large portion of the screen: the whole screen, or the
1925 * whole line, or parts thereof.
1927 static void erase_lots(Terminal
*term
,
1928 int line_only
, int from_begin
, int to_end
)
1932 int erasing_lines_from_top
= 0;
1935 start
.y
= term
->curs
.y
;
1937 end
.y
= term
->curs
.y
+ 1;
1939 erase_lattr
= FALSE
;
1954 if (!from_begin
|| !to_end
)
1955 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1956 check_selection(term
, start
, end
);
1958 /* Clear screen also forces a full window redraw, just in case. */
1959 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1960 term_invalidate(term
);
1962 /* Lines scrolled away shouldn't be brought back on if the terminal
1964 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
1965 erasing_lines_from_top
= 1;
1967 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
1968 /* If it's a whole number of lines, starting at the top, and
1969 * we're fully erasing them, erase by scrolling and keep the
1970 * lines in the scrollback. */
1971 int scrolllines
= end
.y
;
1972 if (end
.y
== term
->rows
) {
1973 /* Shrink until we find a non-empty row.*/
1974 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1976 if (scrolllines
> 0)
1977 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1979 termline
*ldata
= scrlineptr(start
.y
);
1980 while (poslt(start
, end
)) {
1981 if (start
.x
== term
->cols
) {
1983 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1985 ldata
->lattr
= LATTR_NORM
;
1987 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
1989 if (incpos(start
) && start
.y
< term
->rows
) {
1990 ldata
= scrlineptr(start
.y
);
1995 /* After an erase of lines from the top of the screen, we shouldn't
1996 * bring the lines back again if the terminal enlarges (since the user or
1997 * application has explictly thrown them away). */
1998 if (erasing_lines_from_top
&& !(term
->alt_which
))
1999 term
->tempsblines
= 0;
2003 * Insert or delete characters within the current line. n is +ve if
2004 * insertion is desired, and -ve for deletion.
2006 static void insch(Terminal
*term
, int n
)
2008 int dir
= (n
< 0 ?
-1 : +1);
2013 n
= (n
< 0 ?
-n
: n
);
2014 if (n
> term
->cols
- term
->curs
.x
)
2015 n
= term
->cols
- term
->curs
.x
;
2016 m
= term
->cols
- term
->curs
.x
- n
;
2017 cursplus
.y
= term
->curs
.y
;
2018 cursplus
.x
= term
->curs
.x
+ n
;
2019 check_selection(term
, term
->curs
, cursplus
);
2020 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2022 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2023 ldata
= scrlineptr(term
->curs
.y
);
2025 for (j
= 0; j
< m
; j
++)
2026 move_termchar(ldata
,
2027 ldata
->chars
+ term
->curs
.x
+ j
,
2028 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2030 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2033 move_termchar(ldata
,
2034 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2035 ldata
->chars
+ term
->curs
.x
+ j
);
2037 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2042 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2043 * whether the mode is a DEC private one or a normal one.)
2045 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2047 unsigned long ticks
;
2051 case 1: /* DECCKM: application cursor keys */
2052 term
->app_cursor_keys
= state
;
2054 case 2: /* DECANM: VT52 mode */
2055 term
->vt52_mode
= !state
;
2056 if (term
->vt52_mode
) {
2057 term
->blink_is_real
= FALSE
;
2058 term
->vt52_bold
= FALSE
;
2060 term
->blink_is_real
= term
->cfg
.blinktext
;
2063 case 3: /* DECCOLM: 80/132 columns */
2065 if (!term
->cfg
.no_remote_resize
)
2066 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2067 term
->reset_132
= state
;
2068 term
->alt_t
= term
->marg_t
= 0;
2069 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2070 move(term
, 0, 0, 0);
2071 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2073 case 5: /* DECSCNM: reverse video */
2075 * Toggle reverse video. If we receive an OFF within the
2076 * visual bell timeout period after an ON, we trigger an
2077 * effective visual bell, so that ESC[?5hESC[?5l will
2078 * always be an actually _visible_ visual bell.
2080 ticks
= GETTICKCOUNT();
2081 /* turn off a previous vbell to avoid inconsistencies */
2082 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2083 term
->in_vbell
= FALSE
;
2084 if (term
->rvideo
&& !state
&& /* we're turning it off... */
2085 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
2086 /* If there's no vbell timeout already, or this one lasts
2087 * longer, replace vbell_timeout with ours. */
2088 if (!term
->in_vbell
||
2089 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
2091 term
->vbell_startpoint
= term
->rvbell_startpoint
;
2092 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
2093 } else if (!term
->rvideo
&& state
) {
2094 /* This is an ON, so we notice the time and save it. */
2095 term
->rvbell_startpoint
= ticks
;
2097 term
->rvideo
= state
;
2098 term
->seen_disp_event
= TRUE
;
2102 case 6: /* DECOM: DEC origin mode */
2103 term
->dec_om
= state
;
2105 case 7: /* DECAWM: auto wrap */
2108 case 8: /* DECARM: auto key repeat */
2109 term
->repeat_off
= !state
;
2111 case 10: /* DECEDM: set local edit mode */
2112 term
->term_editing
= state
;
2113 if (term
->ldisc
) /* cause ldisc to notice changes */
2114 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2116 case 25: /* DECTCEM: enable/disable cursor */
2117 compatibility2(OTHER
, VT220
);
2118 term
->cursor_on
= state
;
2119 term
->seen_disp_event
= TRUE
;
2121 case 47: /* alternate screen */
2122 compatibility(OTHER
);
2124 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2127 case 1000: /* xterm mouse 1 */
2128 term
->xterm_mouse
= state ?
1 : 0;
2129 set_raw_mouse_mode(term
->frontend
, state
);
2131 case 1002: /* xterm mouse 2 */
2132 term
->xterm_mouse
= state ?
2 : 0;
2133 set_raw_mouse_mode(term
->frontend
, state
);
2135 case 1047: /* alternate screen */
2136 compatibility(OTHER
);
2138 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2141 case 1048: /* save/restore cursor */
2142 if (!term
->cfg
.no_alt_screen
)
2143 save_cursor(term
, state
);
2144 if (!state
) term
->seen_disp_event
= TRUE
;
2146 case 1049: /* cursor & alternate screen */
2147 if (state
&& !term
->cfg
.no_alt_screen
)
2148 save_cursor(term
, state
);
2149 if (!state
) term
->seen_disp_event
= TRUE
;
2150 compatibility(OTHER
);
2152 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2153 if (!state
&& !term
->cfg
.no_alt_screen
)
2154 save_cursor(term
, state
);
2159 case 4: /* IRM: set insert mode */
2160 compatibility(VT102
);
2161 term
->insert
= state
;
2163 case 12: /* SRM: set echo mode */
2164 term
->term_echoing
= !state
;
2165 if (term
->ldisc
) /* cause ldisc to notice changes */
2166 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2168 case 20: /* LNM: Return sends ... */
2169 term
->cr_lf_return
= state
;
2171 case 34: /* WYULCURM: Make cursor BIG */
2172 compatibility2(OTHER
, VT220
);
2173 term
->big_cursor
= !state
;
2178 * Process an OSC sequence: set window title or icon name.
2180 static void do_osc(Terminal
*term
)
2183 while (term
->osc_strlen
--)
2184 term
->wordness
[(unsigned char)
2185 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2187 term
->osc_string
[term
->osc_strlen
] = '\0';
2188 switch (term
->esc_args
[0]) {
2191 if (!term
->cfg
.no_remote_wintitle
)
2192 set_icon(term
->frontend
, term
->osc_string
);
2193 if (term
->esc_args
[0] == 1)
2195 /* fall through: parameter 0 means set both */
2198 if (!term
->cfg
.no_remote_wintitle
)
2199 set_title(term
->frontend
, term
->osc_string
);
2206 * ANSI printing routines.
2208 static void term_print_setup(Terminal
*term
)
2210 bufchain_clear(&term
->printer_buf
);
2211 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2213 static void term_print_flush(Terminal
*term
)
2218 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2219 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2222 printer_job_data(term
->print_job
, data
, len
);
2223 bufchain_consume(&term
->printer_buf
, len
);
2226 static void term_print_finish(Terminal
*term
)
2232 if (!term
->printing
&& !term
->only_printing
)
2233 return; /* we need do nothing */
2235 term_print_flush(term
);
2236 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2237 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2239 if (c
== '\033' || c
== '\233') {
2240 bufchain_consume(&term
->printer_buf
, size
);
2243 printer_job_data(term
->print_job
, &c
, 1);
2244 bufchain_consume(&term
->printer_buf
, 1);
2247 printer_finish_job(term
->print_job
);
2248 term
->print_job
= NULL
;
2249 term
->printing
= term
->only_printing
= FALSE
;
2253 * Remove everything currently in `inbuf' and stick it up on the
2254 * in-memory display. There's a big state machine in here to
2255 * process escape sequences...
2257 void term_out(Terminal
*term
)
2261 unsigned char localbuf
[256], *chars
;
2266 chars
= NULL
; /* placate compiler warnings */
2267 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
2271 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2272 if (nchars
> sizeof(localbuf
))
2273 nchars
= sizeof(localbuf
);
2274 memcpy(localbuf
, ret
, nchars
);
2275 bufchain_consume(&term
->inbuf
, nchars
);
2277 assert(chars
!= NULL
);
2283 * Optionally log the session traffic to a file. Useful for
2284 * debugging and possibly also useful for actual logging.
2286 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2287 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2293 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2294 * be able to display 8-bit characters, but I'll let that go 'cause
2299 * If we're printing, add the character to the printer
2302 if (term
->printing
) {
2303 bufchain_add(&term
->printer_buf
, &c
, 1);
2306 * If we're in print-only mode, we use a much simpler
2307 * state machine designed only to recognise the ESC[4i
2308 * termination sequence.
2310 if (term
->only_printing
) {
2312 term
->print_state
= 1;
2313 else if (c
== (unsigned char)'\233')
2314 term
->print_state
= 2;
2315 else if (c
== '[' && term
->print_state
== 1)
2316 term
->print_state
= 2;
2317 else if (c
== '4' && term
->print_state
== 2)
2318 term
->print_state
= 3;
2319 else if (c
== 'i' && term
->print_state
== 3)
2320 term
->print_state
= 4;
2322 term
->print_state
= 0;
2323 if (term
->print_state
== 4) {
2324 term_print_finish(term
);
2330 /* First see about all those translations. */
2331 if (term
->termstate
== TOPLEVEL
) {
2333 switch (term
->utf_state
) {
2336 /* UTF-8 must be stateless so we ignore iso2022. */
2337 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2338 c
= term
->ucsdata
->unitab_ctrl
[c
];
2339 else c
= ((unsigned char)c
) | CSET_ASCII
;
2341 } else if ((c
& 0xe0) == 0xc0) {
2342 term
->utf_size
= term
->utf_state
= 1;
2343 term
->utf_char
= (c
& 0x1f);
2344 } else if ((c
& 0xf0) == 0xe0) {
2345 term
->utf_size
= term
->utf_state
= 2;
2346 term
->utf_char
= (c
& 0x0f);
2347 } else if ((c
& 0xf8) == 0xf0) {
2348 term
->utf_size
= term
->utf_state
= 3;
2349 term
->utf_char
= (c
& 0x07);
2350 } else if ((c
& 0xfc) == 0xf8) {
2351 term
->utf_size
= term
->utf_state
= 4;
2352 term
->utf_char
= (c
& 0x03);
2353 } else if ((c
& 0xfe) == 0xfc) {
2354 term
->utf_size
= term
->utf_state
= 5;
2355 term
->utf_char
= (c
& 0x01);
2366 if ((c
& 0xC0) != 0x80) {
2369 term
->utf_state
= 0;
2372 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2373 if (--term
->utf_state
)
2378 /* Is somebody trying to be evil! */
2380 (c
< 0x800 && term
->utf_size
>= 2) ||
2381 (c
< 0x10000 && term
->utf_size
>= 3) ||
2382 (c
< 0x200000 && term
->utf_size
>= 4) ||
2383 (c
< 0x4000000 && term
->utf_size
>= 5))
2386 /* Unicode line separator and paragraph separator are CR-LF */
2387 if (c
== 0x2028 || c
== 0x2029)
2390 /* High controls are probably a Baaad idea too. */
2394 /* The UTF-16 surrogates are not nice either. */
2395 /* The standard give the option of decoding these:
2396 * I don't want to! */
2397 if (c
>= 0xD800 && c
< 0xE000)
2400 /* ISO 10646 characters now limited to UTF-16 range. */
2404 /* This is currently a TagPhobic application.. */
2405 if (c
>= 0xE0000 && c
<= 0xE007F)
2408 /* U+FEFF is best seen as a null. */
2411 /* But U+FFFE is an error. */
2412 if (c
== 0xFFFE || c
== 0xFFFF)
2417 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2418 else if(term
->sco_acs
&&
2419 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2421 if (term
->sco_acs
== 2) c
|= 0x80;
2424 switch (term
->cset_attr
[term
->cset
]) {
2426 * Linedraw characters are different from 'ESC ( B'
2427 * only for a small range. For ones outside that
2428 * range, make sure we use the same font as well as
2429 * the same encoding.
2432 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2433 c
= term
->ucsdata
->unitab_ctrl
[c
];
2435 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2439 /* If UK-ASCII, make the '#' a LineDraw Pound */
2441 c
= '}' | CSET_LINEDRW
;
2444 /*FALLTHROUGH*/ case CSET_ASCII
:
2445 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2446 c
= term
->ucsdata
->unitab_ctrl
[c
];
2448 c
= ((unsigned char) c
) | CSET_ASCII
;
2451 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2457 /* How about C1 controls ? */
2458 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2459 !term
->vt52_mode
&& has_compat(VT220
)) {
2460 term
->termstate
= SEEN_ESC
;
2461 term
->esc_query
= FALSE
;
2462 c
= '@' + (c
& 0x1F);
2465 /* Or the GL control. */
2466 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2467 if (term
->curs
.x
&& !term
->wrapnext
)
2469 term
->wrapnext
= FALSE
;
2470 /* destructive backspace might be disabled */
2471 if (!term
->cfg
.no_dbackspace
) {
2472 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2473 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2474 copy_termchar(scrlineptr(term
->curs
.y
),
2475 term
->curs
.x
, &term
->erase_char
);
2478 /* Or normal C0 controls. */
2479 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2481 case '\005': /* ENQ: terminal type query */
2482 /* Strictly speaking this is VT100 but a VT100 defaults to
2483 * no response. Other terminals respond at their option.
2485 * Don't put a CR in the default string as this tends to
2486 * upset some weird software.
2488 * An xterm returns "xterm" (5 characters)
2490 compatibility(ANSIMIN
);
2492 char abuf
[256], *s
, *d
;
2494 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
2496 if (*s
>= 'a' && *s
<= 'z')
2497 *d
++ = (*s
- ('a' - 1));
2498 else if ((*s
>= '@' && *s
<= '_') ||
2499 *s
== '?' || (*s
& 0x80))
2504 } else if (*s
== '^') {
2509 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2513 case '\007': /* BEL: Bell */
2515 struct beeptime
*newbeep
;
2516 unsigned long ticks
;
2518 ticks
= GETTICKCOUNT();
2520 if (!term
->beep_overloaded
) {
2521 newbeep
= snew(struct beeptime
);
2522 newbeep
->ticks
= ticks
;
2523 newbeep
->next
= NULL
;
2524 if (!term
->beephead
)
2525 term
->beephead
= newbeep
;
2527 term
->beeptail
->next
= newbeep
;
2528 term
->beeptail
= newbeep
;
2533 * Throw out any beeps that happened more than
2536 while (term
->beephead
&&
2537 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2538 struct beeptime
*tmp
= term
->beephead
;
2539 term
->beephead
= tmp
->next
;
2541 if (!term
->beephead
)
2542 term
->beeptail
= NULL
;
2546 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2547 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2549 * If we're currently overloaded and the
2550 * last beep was more than s seconds ago,
2551 * leave overload mode.
2553 term
->beep_overloaded
= FALSE
;
2554 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2555 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2557 * Now, if we have n or more beeps
2558 * remaining in the queue, go into overload
2561 term
->beep_overloaded
= TRUE
;
2563 term
->lastbeep
= ticks
;
2566 * Perform an actual beep if we're not overloaded.
2568 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2569 beep(term
->frontend
, term
->cfg
.beep
);
2570 if (term
->cfg
.beep
== BELL_VISUAL
) {
2571 term
->in_vbell
= TRUE
;
2572 term
->vbell_startpoint
= ticks
;
2576 term
->seen_disp_event
= TRUE
;
2579 case '\b': /* BS: Back space */
2580 if (term
->curs
.x
== 0 &&
2581 (term
->curs
.y
== 0 || term
->wrap
== 0))
2583 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2584 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2585 else if (term
->wrapnext
)
2586 term
->wrapnext
= FALSE
;
2589 term
->seen_disp_event
= TRUE
;
2591 case '\016': /* LS1: Locking-shift one */
2592 compatibility(VT100
);
2595 case '\017': /* LS0: Locking-shift zero */
2596 compatibility(VT100
);
2599 case '\033': /* ESC: Escape */
2600 if (term
->vt52_mode
)
2601 term
->termstate
= VT52_ESC
;
2603 compatibility(ANSIMIN
);
2604 term
->termstate
= SEEN_ESC
;
2605 term
->esc_query
= FALSE
;
2608 case '\015': /* CR: Carriage return */
2610 term
->wrapnext
= FALSE
;
2611 term
->seen_disp_event
= TRUE
;
2612 term
->paste_hold
= 0;
2614 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2616 case '\014': /* FF: Form feed */
2617 if (has_compat(SCOANSI
)) {
2618 move(term
, 0, 0, 0);
2619 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2621 term
->wrapnext
= FALSE
;
2622 term
->seen_disp_event
= 1;
2625 case '\013': /* VT: Line tabulation */
2626 compatibility(VT100
);
2627 case '\012': /* LF: Line feed */
2628 if (term
->curs
.y
== term
->marg_b
)
2629 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2630 else if (term
->curs
.y
< term
->rows
- 1)
2632 if (term
->cfg
.lfhascr
)
2634 term
->wrapnext
= FALSE
;
2635 term
->seen_disp_event
= 1;
2636 term
->paste_hold
= 0;
2638 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2640 case '\t': /* HT: Character tabulation */
2642 pos old_curs
= term
->curs
;
2643 termline
*ldata
= scrlineptr(term
->curs
.y
);
2647 } while (term
->curs
.x
< term
->cols
- 1 &&
2648 !term
->tabs
[term
->curs
.x
]);
2650 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2651 if (term
->curs
.x
>= term
->cols
/ 2)
2652 term
->curs
.x
= term
->cols
/ 2 - 1;
2654 if (term
->curs
.x
>= term
->cols
)
2655 term
->curs
.x
= term
->cols
- 1;
2658 check_selection(term
, old_curs
, term
->curs
);
2660 term
->seen_disp_event
= TRUE
;
2664 switch (term
->termstate
) {
2666 /* Only graphic characters get this far;
2667 * ctrls are stripped above */
2669 termline
*cline
= scrlineptr(term
->curs
.y
);
2674 width
= wcwidth((wchar_t) c
);
2676 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2677 cline
->lattr
|= LATTR_WRAPPED
;
2678 if (term
->curs
.y
== term
->marg_b
)
2679 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2680 else if (term
->curs
.y
< term
->rows
- 1)
2683 term
->wrapnext
= FALSE
;
2684 cline
= scrlineptr(term
->curs
.y
);
2686 if (term
->insert
&& width
> 0)
2688 if (term
->selstate
!= NO_SELECTION
) {
2689 pos cursplus
= term
->curs
;
2691 check_selection(term
, term
->curs
, cursplus
);
2693 if (((c
& CSET_MASK
) == CSET_ASCII
||
2694 (c
& CSET_MASK
) == 0) &&
2696 logtraffic(term
->logctx
, (unsigned char) c
,
2702 * If we're about to display a double-width
2703 * character starting in the rightmost
2704 * column, then we do something special
2705 * instead. We must print a space in the
2706 * last column of the screen, then wrap;
2707 * and we also set LATTR_WRAPPED2 which
2708 * instructs subsequent cut-and-pasting not
2709 * only to splice this line to the one
2710 * after it, but to ignore the space in the
2711 * last character position as well.
2712 * (Because what was actually output to the
2713 * terminal was presumably just a sequence
2714 * of CJK characters, and we don't want a
2715 * space to be pasted in the middle of
2716 * those just because they had the
2717 * misfortune to start in the wrong parity
2718 * column. xterm concurs.)
2720 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2721 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2722 if (term
->curs
.x
== term
->cols
-1) {
2723 copy_termchar(cline
, term
->curs
.x
,
2725 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2726 if (term
->curs
.y
== term
->marg_b
)
2727 scroll(term
, term
->marg_t
, term
->marg_b
,
2729 else if (term
->curs
.y
< term
->rows
- 1)
2732 /* Now we must check_boundary again, of course. */
2733 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2734 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2738 clear_cc(cline
, term
->curs
.x
);
2739 cline
->chars
[term
->curs
.x
].chr
= c
;
2740 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2745 clear_cc(cline
, term
->curs
.x
);
2746 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2747 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2751 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2752 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2755 clear_cc(cline
, term
->curs
.x
);
2756 cline
->chars
[term
->curs
.x
].chr
= c
;
2757 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2761 if (term
->curs
.x
> 0) {
2762 int x
= term
->curs
.x
- 1;
2764 /* If we're in wrapnext state, the character
2765 * to combine with is _here_, not to our left. */
2770 * If the previous character is
2771 * UCSWIDE, back up another one.
2773 if (cline
->chars
[x
].chr
== UCSWIDE
) {
2778 add_cc(cline
, x
, c
);
2779 term
->seen_disp_event
= 1;
2786 if (term
->curs
.x
== term
->cols
) {
2788 term
->wrapnext
= TRUE
;
2789 if (term
->wrap
&& term
->vt52_mode
) {
2790 cline
->lattr
|= LATTR_WRAPPED
;
2791 if (term
->curs
.y
== term
->marg_b
)
2792 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2793 else if (term
->curs
.y
< term
->rows
- 1)
2796 term
->wrapnext
= FALSE
;
2799 term
->seen_disp_event
= 1;
2805 * This state is virtually identical to SEEN_ESC, with the
2806 * exception that we have an OSC sequence in the pipeline,
2807 * and _if_ we see a backslash, we process it.
2811 term
->termstate
= TOPLEVEL
;
2814 /* else fall through */
2816 if (c
>= ' ' && c
<= '/') {
2817 if (term
->esc_query
)
2818 term
->esc_query
= -1;
2820 term
->esc_query
= c
;
2823 term
->termstate
= TOPLEVEL
;
2824 switch (ANSI(c
, term
->esc_query
)) {
2825 case '[': /* enter CSI mode */
2826 term
->termstate
= SEEN_CSI
;
2827 term
->esc_nargs
= 1;
2828 term
->esc_args
[0] = ARG_DEFAULT
;
2829 term
->esc_query
= FALSE
;
2831 case ']': /* OSC: xterm escape sequences */
2832 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
2833 compatibility(OTHER
);
2834 term
->termstate
= SEEN_OSC
;
2835 term
->esc_args
[0] = 0;
2837 case '7': /* DECSC: save cursor */
2838 compatibility(VT100
);
2839 save_cursor(term
, TRUE
);
2841 case '8': /* DECRC: restore cursor */
2842 compatibility(VT100
);
2843 save_cursor(term
, FALSE
);
2844 term
->seen_disp_event
= TRUE
;
2846 case '=': /* DECKPAM: Keypad application mode */
2847 compatibility(VT100
);
2848 term
->app_keypad_keys
= TRUE
;
2850 case '>': /* DECKPNM: Keypad numeric mode */
2851 compatibility(VT100
);
2852 term
->app_keypad_keys
= FALSE
;
2854 case 'D': /* IND: exactly equivalent to LF */
2855 compatibility(VT100
);
2856 if (term
->curs
.y
== term
->marg_b
)
2857 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2858 else if (term
->curs
.y
< term
->rows
- 1)
2860 term
->wrapnext
= FALSE
;
2861 term
->seen_disp_event
= TRUE
;
2863 case 'E': /* NEL: exactly equivalent to CR-LF */
2864 compatibility(VT100
);
2866 if (term
->curs
.y
== term
->marg_b
)
2867 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2868 else if (term
->curs
.y
< term
->rows
- 1)
2870 term
->wrapnext
= FALSE
;
2871 term
->seen_disp_event
= TRUE
;
2873 case 'M': /* RI: reverse index - backwards LF */
2874 compatibility(VT100
);
2875 if (term
->curs
.y
== term
->marg_t
)
2876 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
2877 else if (term
->curs
.y
> 0)
2879 term
->wrapnext
= FALSE
;
2880 term
->seen_disp_event
= TRUE
;
2882 case 'Z': /* DECID: terminal type query */
2883 compatibility(VT100
);
2885 ldisc_send(term
->ldisc
, term
->id_string
,
2886 strlen(term
->id_string
), 0);
2888 case 'c': /* RIS: restore power-on settings */
2889 compatibility(VT100
);
2891 if (term
->ldisc
) /* cause ldisc to notice changes */
2892 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2893 if (term
->reset_132
) {
2894 if (!term
->cfg
.no_remote_resize
)
2895 request_resize(term
->frontend
, 80, term
->rows
);
2896 term
->reset_132
= 0;
2899 term
->seen_disp_event
= TRUE
;
2901 case 'H': /* HTS: set a tab */
2902 compatibility(VT100
);
2903 term
->tabs
[term
->curs
.x
] = TRUE
;
2906 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
2907 compatibility(VT100
);
2913 for (i
= 0; i
< term
->rows
; i
++) {
2914 ldata
= scrlineptr(i
);
2915 for (j
= 0; j
< term
->cols
; j
++) {
2916 copy_termchar(ldata
, j
,
2917 &term
->basic_erase_char
);
2918 ldata
->chars
[j
].chr
= 'E';
2920 ldata
->lattr
= LATTR_NORM
;
2923 term
->seen_disp_event
= TRUE
;
2924 scrtop
.x
= scrtop
.y
= 0;
2926 scrbot
.y
= term
->rows
;
2927 check_selection(term
, scrtop
, scrbot
);
2931 case ANSI('3', '#'):
2932 case ANSI('4', '#'):
2933 case ANSI('5', '#'):
2934 case ANSI('6', '#'):
2935 compatibility(VT100
);
2939 switch (ANSI(c
, term
->esc_query
)) {
2940 case ANSI('3', '#'): /* DECDHL: 2*height, top */
2943 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
2946 case ANSI('5', '#'): /* DECSWL: normal */
2947 nlattr
= LATTR_NORM
;
2949 default: /* case ANSI('6', '#'): DECDWL: 2*width */
2950 nlattr
= LATTR_WIDE
;
2953 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
2956 /* GZD4: G0 designate 94-set */
2957 case ANSI('A', '('):
2958 compatibility(VT100
);
2959 if (!term
->cfg
.no_remote_charset
)
2960 term
->cset_attr
[0] = CSET_GBCHR
;
2962 case ANSI('B', '('):
2963 compatibility(VT100
);
2964 if (!term
->cfg
.no_remote_charset
)
2965 term
->cset_attr
[0] = CSET_ASCII
;
2967 case ANSI('0', '('):
2968 compatibility(VT100
);
2969 if (!term
->cfg
.no_remote_charset
)
2970 term
->cset_attr
[0] = CSET_LINEDRW
;
2972 case ANSI('U', '('):
2973 compatibility(OTHER
);
2974 if (!term
->cfg
.no_remote_charset
)
2975 term
->cset_attr
[0] = CSET_SCOACS
;
2977 /* G1D4: G1-designate 94-set */
2978 case ANSI('A', ')'):
2979 compatibility(VT100
);
2980 if (!term
->cfg
.no_remote_charset
)
2981 term
->cset_attr
[1] = CSET_GBCHR
;
2983 case ANSI('B', ')'):
2984 compatibility(VT100
);
2985 if (!term
->cfg
.no_remote_charset
)
2986 term
->cset_attr
[1] = CSET_ASCII
;
2988 case ANSI('0', ')'):
2989 compatibility(VT100
);
2990 if (!term
->cfg
.no_remote_charset
)
2991 term
->cset_attr
[1] = CSET_LINEDRW
;
2993 case ANSI('U', ')'):
2994 compatibility(OTHER
);
2995 if (!term
->cfg
.no_remote_charset
)
2996 term
->cset_attr
[1] = CSET_SCOACS
;
2998 /* DOCS: Designate other coding system */
2999 case ANSI('8', '%'): /* Old Linux code */
3000 case ANSI('G', '%'):
3001 compatibility(OTHER
);
3002 if (!term
->cfg
.no_remote_charset
)
3005 case ANSI('@', '%'):
3006 compatibility(OTHER
);
3007 if (!term
->cfg
.no_remote_charset
)
3013 term
->termstate
= TOPLEVEL
; /* default */
3015 if (term
->esc_nargs
<= ARGS_MAX
) {
3016 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3017 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3018 term
->esc_args
[term
->esc_nargs
- 1] =
3019 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3021 term
->termstate
= SEEN_CSI
;
3022 } else if (c
== ';') {
3023 if (++term
->esc_nargs
<= ARGS_MAX
)
3024 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
3025 term
->termstate
= SEEN_CSI
;
3026 } else if (c
< '@') {
3027 if (term
->esc_query
)
3028 term
->esc_query
= -1;
3030 term
->esc_query
= TRUE
;
3032 term
->esc_query
= c
;
3033 term
->termstate
= SEEN_CSI
;
3035 switch (ANSI(c
, term
->esc_query
)) {
3036 case 'A': /* CUU: move up N lines */
3037 move(term
, term
->curs
.x
,
3038 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3039 term
->seen_disp_event
= TRUE
;
3041 case 'e': /* VPR: move down N lines */
3042 compatibility(ANSI
);
3044 case 'B': /* CUD: Cursor down */
3045 move(term
, term
->curs
.x
,
3046 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3047 term
->seen_disp_event
= TRUE
;
3049 case ANSI('c', '>'): /* DA: report xterm version */
3050 compatibility(OTHER
);
3051 /* this reports xterm version 136 so that VIM can
3052 use the drag messages from the mouse reporting */
3054 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3056 case 'a': /* HPR: move right N cols */
3057 compatibility(ANSI
);
3059 case 'C': /* CUF: Cursor right */
3060 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3062 term
->seen_disp_event
= TRUE
;
3064 case 'D': /* CUB: move left N cols */
3065 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3067 term
->seen_disp_event
= TRUE
;
3069 case 'E': /* CNL: move down N lines and CR */
3070 compatibility(ANSI
);
3072 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3073 term
->seen_disp_event
= TRUE
;
3075 case 'F': /* CPL: move up N lines and CR */
3076 compatibility(ANSI
);
3078 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3079 term
->seen_disp_event
= TRUE
;
3082 case '`': /* HPA: set horizontal posn */
3083 compatibility(ANSI
);
3084 move(term
, def(term
->esc_args
[0], 1) - 1,
3086 term
->seen_disp_event
= TRUE
;
3088 case 'd': /* VPA: set vertical posn */
3089 compatibility(ANSI
);
3090 move(term
, term
->curs
.x
,
3091 ((term
->dec_om ? term
->marg_t
: 0) +
3092 def(term
->esc_args
[0], 1) - 1),
3093 (term
->dec_om ?
2 : 0));
3094 term
->seen_disp_event
= TRUE
;
3097 case 'f': /* HVP: set horz and vert posns at once */
3098 if (term
->esc_nargs
< 2)
3099 term
->esc_args
[1] = ARG_DEFAULT
;
3100 move(term
, def(term
->esc_args
[1], 1) - 1,
3101 ((term
->dec_om ? term
->marg_t
: 0) +
3102 def(term
->esc_args
[0], 1) - 1),
3103 (term
->dec_om ?
2 : 0));
3104 term
->seen_disp_event
= TRUE
;
3106 case 'J': /* ED: erase screen or parts of it */
3108 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3111 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3114 term
->seen_disp_event
= TRUE
;
3116 case 'K': /* EL: erase line or parts of it */
3118 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3121 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3123 term
->seen_disp_event
= TRUE
;
3125 case 'L': /* IL: insert lines */
3126 compatibility(VT102
);
3127 if (term
->curs
.y
<= term
->marg_b
)
3128 scroll(term
, term
->curs
.y
, term
->marg_b
,
3129 -def(term
->esc_args
[0], 1), FALSE
);
3130 term
->seen_disp_event
= TRUE
;
3132 case 'M': /* DL: delete lines */
3133 compatibility(VT102
);
3134 if (term
->curs
.y
<= term
->marg_b
)
3135 scroll(term
, term
->curs
.y
, term
->marg_b
,
3136 def(term
->esc_args
[0], 1),
3138 term
->seen_disp_event
= TRUE
;
3140 case '@': /* ICH: insert chars */
3141 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3142 compatibility(VT102
);
3143 insch(term
, def(term
->esc_args
[0], 1));
3144 term
->seen_disp_event
= TRUE
;
3146 case 'P': /* DCH: delete chars */
3147 compatibility(VT102
);
3148 insch(term
, -def(term
->esc_args
[0], 1));
3149 term
->seen_disp_event
= TRUE
;
3151 case 'c': /* DA: terminal type query */
3152 compatibility(VT100
);
3153 /* This is the response for a VT102 */
3155 ldisc_send(term
->ldisc
, term
->id_string
,
3156 strlen(term
->id_string
), 0);
3158 case 'n': /* DSR: cursor position query */
3160 if (term
->esc_args
[0] == 6) {
3162 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3164 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3165 } else if (term
->esc_args
[0] == 5) {
3166 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3170 case 'h': /* SM: toggle modes to high */
3172 compatibility(VT100
);
3175 for (i
= 0; i
< term
->esc_nargs
; i
++)
3176 toggle_mode(term
, term
->esc_args
[i
],
3177 term
->esc_query
, TRUE
);
3180 case 'i': /* MC: Media copy */
3182 compatibility(VT100
);
3184 if (term
->esc_nargs
!= 1) break;
3185 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3186 term
->printing
= TRUE
;
3187 term
->only_printing
= !term
->esc_query
;
3188 term
->print_state
= 0;
3189 term_print_setup(term
);
3190 } else if (term
->esc_args
[0] == 4 &&
3192 term_print_finish(term
);
3196 case 'l': /* RM: toggle modes to low */
3198 compatibility(VT100
);
3201 for (i
= 0; i
< term
->esc_nargs
; i
++)
3202 toggle_mode(term
, term
->esc_args
[i
],
3203 term
->esc_query
, FALSE
);
3206 case 'g': /* TBC: clear tabs */
3207 compatibility(VT100
);
3208 if (term
->esc_nargs
== 1) {
3209 if (term
->esc_args
[0] == 0) {
3210 term
->tabs
[term
->curs
.x
] = FALSE
;
3211 } else if (term
->esc_args
[0] == 3) {
3213 for (i
= 0; i
< term
->cols
; i
++)
3214 term
->tabs
[i
] = FALSE
;
3218 case 'r': /* DECSTBM: set scroll margins */
3219 compatibility(VT100
);
3220 if (term
->esc_nargs
<= 2) {
3222 top
= def(term
->esc_args
[0], 1) - 1;
3223 bot
= (term
->esc_nargs
<= 1
3224 || term
->esc_args
[1] == 0 ?
3226 def(term
->esc_args
[1], term
->rows
)) - 1;
3227 if (bot
>= term
->rows
)
3228 bot
= term
->rows
- 1;
3229 /* VTTEST Bug 9 - if region is less than 2 lines
3230 * don't change region.
3232 if (bot
- top
> 0) {
3237 * I used to think the cursor should be
3238 * placed at the top of the newly marginned
3239 * area. Apparently not: VMS TPU falls over
3242 * Well actually it should for
3245 term
->curs
.y
= (term
->dec_om ?
3247 term
->seen_disp_event
= TRUE
;
3251 case 'm': /* SGR: set graphics rendition */
3254 * A VT100 without the AVO only had one
3255 * attribute, either underline or
3256 * reverse video depending on the
3257 * cursor type, this was selected by
3261 * This is sometimes DIM, eg on the
3264 * This is sometimes INVIS various ANSI.
3266 * This like 22 disables BOLD, DIM and INVIS
3268 * The ANSI colours appear on any
3269 * terminal that has colour (obviously)
3270 * but the interaction between sgr0 and
3271 * the colours varies but is usually
3272 * related to the background colour
3273 * erase item. The interaction between
3274 * colour attributes and the mono ones
3275 * is also very implementation
3278 * The 39 and 49 attributes are likely
3279 * to be unimplemented.
3282 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3283 switch (def(term
->esc_args
[i
], 0)) {
3284 case 0: /* restore defaults */
3285 term
->curr_attr
= term
->default_attr
;
3287 case 1: /* enable bold */
3288 compatibility(VT100AVO
);
3289 term
->curr_attr
|= ATTR_BOLD
;
3291 case 21: /* (enable double underline) */
3292 compatibility(OTHER
);
3293 case 4: /* enable underline */
3294 compatibility(VT100AVO
);
3295 term
->curr_attr
|= ATTR_UNDER
;
3297 case 5: /* enable blink */
3298 compatibility(VT100AVO
);
3299 term
->curr_attr
|= ATTR_BLINK
;
3301 case 6: /* SCO light bkgrd */
3302 compatibility(SCOANSI
);
3303 term
->blink_is_real
= FALSE
;
3304 term
->curr_attr
|= ATTR_BLINK
;
3306 case 7: /* enable reverse video */
3307 term
->curr_attr
|= ATTR_REVERSE
;
3309 case 10: /* SCO acs off */
3310 compatibility(SCOANSI
);
3311 if (term
->cfg
.no_remote_charset
) break;
3312 term
->sco_acs
= 0; break;
3313 case 11: /* SCO acs on */
3314 compatibility(SCOANSI
);
3315 if (term
->cfg
.no_remote_charset
) break;
3316 term
->sco_acs
= 1; break;
3317 case 12: /* SCO acs on, |0x80 */
3318 compatibility(SCOANSI
);
3319 if (term
->cfg
.no_remote_charset
) break;
3320 term
->sco_acs
= 2; break;
3321 case 22: /* disable bold */
3322 compatibility2(OTHER
, VT220
);
3323 term
->curr_attr
&= ~ATTR_BOLD
;
3325 case 24: /* disable underline */
3326 compatibility2(OTHER
, VT220
);
3327 term
->curr_attr
&= ~ATTR_UNDER
;
3329 case 25: /* disable blink */
3330 compatibility2(OTHER
, VT220
);
3331 term
->curr_attr
&= ~ATTR_BLINK
;
3333 case 27: /* disable reverse video */
3334 compatibility2(OTHER
, VT220
);
3335 term
->curr_attr
&= ~ATTR_REVERSE
;
3346 term
->curr_attr
&= ~ATTR_FGMASK
;
3348 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3358 /* xterm-style bright foreground */
3359 term
->curr_attr
&= ~ATTR_FGMASK
;
3361 ((term
->esc_args
[i
] - 90 + 16)
3364 case 39: /* default-foreground */
3365 term
->curr_attr
&= ~ATTR_FGMASK
;
3366 term
->curr_attr
|= ATTR_DEFFG
;
3377 term
->curr_attr
&= ~ATTR_BGMASK
;
3379 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3389 /* xterm-style bright background */
3390 term
->curr_attr
&= ~ATTR_BGMASK
;
3392 ((term
->esc_args
[i
] - 100 + 16)
3395 case 49: /* default-background */
3396 term
->curr_attr
&= ~ATTR_BGMASK
;
3397 term
->curr_attr
|= ATTR_DEFBG
;
3401 set_erase_char(term
);
3404 case 's': /* save cursor */
3405 save_cursor(term
, TRUE
);
3407 case 'u': /* restore cursor */
3408 save_cursor(term
, FALSE
);
3409 term
->seen_disp_event
= TRUE
;
3411 case 't': /* DECSLPP: set page size - ie window height */
3413 * VT340/VT420 sequence DECSLPP, DEC only allows values
3414 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3415 * illegal values (eg first arg 1..9) for window changing
3418 if (term
->esc_nargs
<= 1
3419 && (term
->esc_args
[0] < 1 ||
3420 term
->esc_args
[0] >= 24)) {
3421 compatibility(VT340TEXT
);
3422 if (!term
->cfg
.no_remote_resize
)
3423 request_resize(term
->frontend
, term
->cols
,
3424 def(term
->esc_args
[0], 24));
3426 } else if (term
->esc_nargs
>= 1 &&
3427 term
->esc_args
[0] >= 1 &&
3428 term
->esc_args
[0] < 24) {
3429 compatibility(OTHER
);
3431 switch (term
->esc_args
[0]) {
3435 set_iconic(term
->frontend
, FALSE
);
3438 set_iconic(term
->frontend
, TRUE
);
3441 if (term
->esc_nargs
>= 3) {
3442 if (!term
->cfg
.no_remote_resize
)
3443 move_window(term
->frontend
,
3444 def(term
->esc_args
[1], 0),
3445 def(term
->esc_args
[2], 0));
3449 /* We should resize the window to a given
3450 * size in pixels here, but currently our
3451 * resizing code isn't healthy enough to
3456 set_zorder(term
->frontend
, TRUE
);
3459 /* move to bottom */
3460 set_zorder(term
->frontend
, FALSE
);
3463 refresh_window(term
->frontend
);
3466 if (term
->esc_nargs
>= 3) {
3467 if (!term
->cfg
.no_remote_resize
)
3468 request_resize(term
->frontend
,
3469 def(term
->esc_args
[2], term
->cfg
.width
),
3470 def(term
->esc_args
[1], term
->cfg
.height
));
3474 if (term
->esc_nargs
>= 2)
3475 set_zoomed(term
->frontend
,
3481 ldisc_send(term
->ldisc
,
3482 is_iconic(term
->frontend
) ?
3483 "\033[1t" : "\033[2t", 4, 0);
3487 get_window_pos(term
->frontend
, &x
, &y
);
3488 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3489 ldisc_send(term
->ldisc
, buf
, len
, 0);
3494 get_window_pixels(term
->frontend
, &x
, &y
);
3495 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3496 ldisc_send(term
->ldisc
, buf
, len
, 0);
3501 len
= sprintf(buf
, "\033[8;%d;%dt",
3502 term
->rows
, term
->cols
);
3503 ldisc_send(term
->ldisc
, buf
, len
, 0);
3508 * Hmmm. Strictly speaking we
3509 * should return `the size of the
3510 * screen in characters', but
3511 * that's not easy: (a) window
3512 * furniture being what it is it's
3513 * hard to compute, and (b) in
3514 * resize-font mode maximising the
3515 * window wouldn't change the
3516 * number of characters. *shrug*. I
3517 * think we'll ignore it for the
3518 * moment and see if anyone
3519 * complains, and then ask them
3520 * what they would like it to do.
3525 !term
->cfg
.no_remote_qtitle
) {
3526 p
= get_window_title(term
->frontend
, TRUE
);
3528 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3529 ldisc_send(term
->ldisc
, p
, len
, 0);
3530 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3535 !term
->cfg
.no_remote_qtitle
) {
3536 p
= get_window_title(term
->frontend
,FALSE
);
3538 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3539 ldisc_send(term
->ldisc
, p
, len
, 0);
3540 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3546 case 'S': /* SU: Scroll up */
3547 compatibility(SCOANSI
);
3548 scroll(term
, term
->marg_t
, term
->marg_b
,
3549 def(term
->esc_args
[0], 1), TRUE
);
3550 term
->wrapnext
= FALSE
;
3551 term
->seen_disp_event
= TRUE
;
3553 case 'T': /* SD: Scroll down */
3554 compatibility(SCOANSI
);
3555 scroll(term
, term
->marg_t
, term
->marg_b
,
3556 -def(term
->esc_args
[0], 1), TRUE
);
3557 term
->wrapnext
= FALSE
;
3558 term
->seen_disp_event
= TRUE
;
3560 case ANSI('|', '*'): /* DECSNLS */
3562 * Set number of lines on screen
3563 * VT420 uses VGA like hardware and can
3564 * support any size in reasonable range
3565 * (24..49 AIUI) with no default specified.
3567 compatibility(VT420
);
3568 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3569 if (!term
->cfg
.no_remote_resize
)
3570 request_resize(term
->frontend
, term
->cols
,
3571 def(term
->esc_args
[0],
3576 case ANSI('|', '$'): /* DECSCPP */
3578 * Set number of columns per page
3579 * Docs imply range is only 80 or 132, but
3582 compatibility(VT340TEXT
);
3583 if (term
->esc_nargs
<= 1) {
3584 if (!term
->cfg
.no_remote_resize
)
3585 request_resize(term
->frontend
,
3586 def(term
->esc_args
[0],
3587 term
->cfg
.width
), term
->rows
);
3591 case 'X': /* ECH: write N spaces w/o moving cursor */
3592 /* XXX VTTEST says this is vt220, vt510 manual
3594 compatibility(ANSIMIN
);
3596 int n
= def(term
->esc_args
[0], 1);
3598 int p
= term
->curs
.x
;
3599 termline
*cline
= scrlineptr(term
->curs
.y
);
3601 if (n
> term
->cols
- term
->curs
.x
)
3602 n
= term
->cols
- term
->curs
.x
;
3603 cursplus
= term
->curs
;
3605 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3606 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3607 check_selection(term
, term
->curs
, cursplus
);
3609 copy_termchar(cline
, p
++,
3611 term
->seen_disp_event
= TRUE
;
3614 case 'x': /* DECREQTPARM: report terminal characteristics */
3615 compatibility(VT100
);
3618 int i
= def(term
->esc_args
[0], 0);
3619 if (i
== 0 || i
== 1) {
3620 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3622 ldisc_send(term
->ldisc
, buf
, 20, 0);
3626 case 'Z': /* CBT: BackTab for xterm */
3627 compatibility(OTHER
);
3629 int i
= def(term
->esc_args
[0], 1);
3630 pos old_curs
= term
->curs
;
3632 for(;i
>0 && term
->curs
.x
>0; i
--) {
3635 } while (term
->curs
.x
>0 &&
3636 !term
->tabs
[term
->curs
.x
]);
3638 check_selection(term
, old_curs
, term
->curs
);
3641 case ANSI('c', '='): /* Hide or Show Cursor */
3642 compatibility(SCOANSI
);
3643 switch(term
->esc_args
[0]) {
3644 case 0: /* hide cursor */
3645 term
->cursor_on
= FALSE
;
3647 case 1: /* restore cursor */
3648 term
->big_cursor
= FALSE
;
3649 term
->cursor_on
= TRUE
;
3651 case 2: /* block cursor */
3652 term
->big_cursor
= TRUE
;
3653 term
->cursor_on
= TRUE
;
3657 case ANSI('C', '='):
3659 * set cursor start on scanline esc_args[0] and
3660 * end on scanline esc_args[1].If you set
3661 * the bottom scan line to a value less than
3662 * the top scan line, the cursor will disappear.
3664 compatibility(SCOANSI
);
3665 if (term
->esc_nargs
>= 2) {
3666 if (term
->esc_args
[0] > term
->esc_args
[1])
3667 term
->cursor_on
= FALSE
;
3669 term
->cursor_on
= TRUE
;
3672 case ANSI('D', '='):
3673 compatibility(SCOANSI
);
3674 term
->blink_is_real
= FALSE
;
3675 if (term
->esc_args
[0]>=1)
3676 term
->curr_attr
|= ATTR_BLINK
;
3678 term
->curr_attr
&= ~ATTR_BLINK
;
3680 case ANSI('E', '='):
3681 compatibility(SCOANSI
);
3682 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3684 case ANSI('F', '='): /* set normal foreground */
3685 compatibility(SCOANSI
);
3686 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3688 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3689 ((term
->esc_args
[0] & 0x8) << 1)) <<
3691 term
->curr_attr
&= ~ATTR_FGMASK
;
3692 term
->curr_attr
|= colour
;
3693 term
->default_attr
&= ~ATTR_FGMASK
;
3694 term
->default_attr
|= colour
;
3697 case ANSI('G', '='): /* set normal background */
3698 compatibility(SCOANSI
);
3699 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3701 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3702 ((term
->esc_args
[0] & 0x8) << 1)) <<
3704 term
->curr_attr
&= ~ATTR_BGMASK
;
3705 term
->curr_attr
|= colour
;
3706 term
->default_attr
&= ~ATTR_BGMASK
;
3707 term
->default_attr
|= colour
;
3710 case ANSI('L', '='):
3711 compatibility(SCOANSI
);
3712 term
->use_bce
= (term
->esc_args
[0] <= 0);
3713 set_erase_char(term
);
3715 case ANSI('p', '"'): /* DECSCL: set compat level */
3717 * Allow the host to make this emulator a
3718 * 'perfect' VT102. This first appeared in
3719 * the VT220, but we do need to get back to
3720 * PuTTY mode so I won't check it.
3722 * The arg in 40..42,50 are a PuTTY extension.
3723 * The 2nd arg, 8bit vs 7bit is not checked.
3725 * Setting VT102 mode should also change
3726 * the Fkeys to generate PF* codes as a
3727 * real VT102 has no Fkeys. The VT220 does
3728 * this, F11..F13 become ESC,BS,LF other
3729 * Fkeys send nothing.
3731 * Note ESC c will NOT change this!
3734 switch (term
->esc_args
[0]) {
3736 term
->compatibility_level
&= ~TM_VTXXX
;
3737 term
->compatibility_level
|= TM_VT102
;
3740 term
->compatibility_level
&= ~TM_VTXXX
;
3741 term
->compatibility_level
|= TM_VT220
;
3745 if (term
->esc_args
[0] > 60 &&
3746 term
->esc_args
[0] < 70)
3747 term
->compatibility_level
|= TM_VTXXX
;
3751 term
->compatibility_level
&= TM_VTXXX
;
3754 term
->compatibility_level
= TM_PUTTY
;
3757 term
->compatibility_level
= TM_SCOANSI
;
3761 term
->compatibility_level
= TM_PUTTY
;
3767 /* Change the response to CSI c */
3768 if (term
->esc_args
[0] == 50) {
3771 strcpy(term
->id_string
, "\033[?");
3772 for (i
= 1; i
< term
->esc_nargs
; i
++) {
3774 strcat(term
->id_string
, ";");
3775 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
3776 strcat(term
->id_string
, lbuf
);
3778 strcat(term
->id_string
, "c");
3781 /* Is this a good idea ?
3782 * Well we should do a soft reset at this point ...
3784 if (!has_compat(VT420
) && has_compat(VT100
)) {
3785 if (!term
->cfg
.no_remote_resize
) {
3786 if (term
->reset_132
)
3787 request_resize(132, 24);
3789 request_resize(80, 24);
3797 term
->osc_w
= FALSE
;
3799 case 'P': /* Linux palette sequence */
3800 term
->termstate
= SEEN_OSC_P
;
3801 term
->osc_strlen
= 0;
3803 case 'R': /* Linux palette reset */
3804 palette_reset(term
->frontend
);
3805 term_invalidate(term
);
3806 term
->termstate
= TOPLEVEL
;
3808 case 'W': /* word-set */
3809 term
->termstate
= SEEN_OSC_W
;
3822 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3826 * Grotty hack to support xterm and DECterm title
3827 * sequences concurrently.
3829 if (term
->esc_args
[0] == 2) {
3830 term
->esc_args
[0] = 1;
3833 /* else fall through */
3835 term
->termstate
= OSC_STRING
;
3836 term
->osc_strlen
= 0;
3841 * This OSC stuff is EVIL. It takes just one character to get into
3842 * sysline mode and it's not initially obvious how to get out.
3843 * So I've added CR and LF as string aborts.
3844 * This shouldn't effect compatibility as I believe embedded
3845 * control characters are supposed to be interpreted (maybe?)
3846 * and they don't display anything useful anyway.
3850 if (c
== '\012' || c
== '\015') {
3851 term
->termstate
= TOPLEVEL
;
3852 } else if (c
== 0234 || c
== '\007') {
3854 * These characters terminate the string; ST and BEL
3855 * terminate the sequence and trigger instant
3856 * processing of it, whereas ESC goes back to SEEN_ESC
3857 * mode unless it is followed by \, in which case it is
3858 * synonymous with ST in the first place.
3861 term
->termstate
= TOPLEVEL
;
3862 } else if (c
== '\033')
3863 term
->termstate
= OSC_MAYBE_ST
;
3864 else if (term
->osc_strlen
< OSC_STR_MAX
)
3865 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
3869 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
3871 if ((int)c
>= '0' && (int)c
<= '9')
3873 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
3875 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
3878 term
->termstate
= TOPLEVEL
;
3881 term
->osc_string
[term
->osc_strlen
++] = val
;
3882 if (term
->osc_strlen
>= 7) {
3883 palette_set(term
->frontend
, term
->osc_string
[0],
3884 term
->osc_string
[1] * 16 + term
->osc_string
[2],
3885 term
->osc_string
[3] * 16 + term
->osc_string
[4],
3886 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
3887 term_invalidate(term
);
3888 term
->termstate
= TOPLEVEL
;
3904 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3907 term
->termstate
= OSC_STRING
;
3908 term
->osc_strlen
= 0;
3912 term
->termstate
= TOPLEVEL
;
3913 term
->seen_disp_event
= TRUE
;
3916 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
3919 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
3922 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
3925 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
3928 * From the VT100 Manual
3929 * NOTE: The special graphics characters in the VT100
3930 * are different from those in the VT52
3932 * From VT102 manual:
3933 * 137 _ Blank - Same
3934 * 140 ` Reserved - Humm.
3935 * 141 a Solid rectangle - Similar
3936 * 142 b 1/ - Top half of fraction for the
3937 * 143 c 3/ - subscript numbers below.
3940 * 146 f Degrees - Same
3941 * 147 g Plus or minus - Same
3943 * 151 i Ellipsis (dots)
3946 * 154 l Bar at scan 0
3947 * 155 m Bar at scan 1
3948 * 156 n Bar at scan 2
3949 * 157 o Bar at scan 3 - Similar
3950 * 160 p Bar at scan 4 - Similar
3951 * 161 q Bar at scan 5 - Similar
3952 * 162 r Bar at scan 6 - Same
3953 * 163 s Bar at scan 7 - Similar
3968 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
3971 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
3974 move(term
, 0, 0, 0);
3977 if (term
->curs
.y
== 0)
3978 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
3979 else if (term
->curs
.y
> 0)
3981 term
->wrapnext
= FALSE
;
3984 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3988 erase_lots(term
, TRUE
, FALSE
, TRUE
);
3992 /* XXX Print cursor line */
3995 /* XXX Start controller mode */
3998 /* XXX Stop controller mode */
4002 term
->termstate
= VT52_Y1
;
4006 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
4009 term
->app_keypad_keys
= TRUE
;
4012 term
->app_keypad_keys
= FALSE
;
4015 /* XXX This should switch to VT100 mode not current or default
4016 * VT mode. But this will only have effect in a VT220+
4019 term
->vt52_mode
= FALSE
;
4020 term
->blink_is_real
= term
->cfg
.blinktext
;
4024 /* XXX Enter auto print mode */
4027 /* XXX Exit auto print mode */
4030 /* XXX Print screen */
4036 /* compatibility(ATARI) */
4037 move(term
, 0, 0, 0);
4038 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4042 /* compatibility(ATARI) */
4043 if (term
->curs
.y
<= term
->marg_b
)
4044 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4047 /* compatibility(ATARI) */
4048 if (term
->curs
.y
<= term
->marg_b
)
4049 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4052 /* compatibility(ATARI) */
4053 term
->termstate
= VT52_FG
;
4056 /* compatibility(ATARI) */
4057 term
->termstate
= VT52_BG
;
4060 /* compatibility(ATARI) */
4061 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4065 /* compatibility(ATARI) */
4066 term
->cursor_on
= TRUE
;
4069 /* compatibility(ATARI) */
4070 term
->cursor_on
= FALSE
;
4072 /* case 'j': Save cursor position - broken on ST */
4073 /* case 'k': Restore cursor position */
4075 /* compatibility(ATARI) */
4076 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4078 term
->wrapnext
= FALSE
;
4081 /* compatibility(ATARI) */
4082 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4085 /* compatibility(ATARI) */
4086 term
->curr_attr
|= ATTR_REVERSE
;
4089 /* compatibility(ATARI) */
4090 term
->curr_attr
&= ~ATTR_REVERSE
;
4092 case 'v': /* wrap Autowrap on - Wyse style */
4093 /* compatibility(ATARI) */
4096 case 'w': /* Autowrap off */
4097 /* compatibility(ATARI) */
4102 /* compatibility(OTHER) */
4103 term
->vt52_bold
= FALSE
;
4104 term
->curr_attr
= ATTR_DEFAULT
;
4105 set_erase_char(term
);
4108 /* compatibility(VI50) */
4109 term
->curr_attr
|= ATTR_UNDER
;
4112 /* compatibility(VI50) */
4113 term
->curr_attr
&= ~ATTR_UNDER
;
4116 /* compatibility(VI50) */
4117 term
->vt52_bold
= TRUE
;
4118 term
->curr_attr
|= ATTR_BOLD
;
4121 /* compatibility(VI50) */
4122 term
->vt52_bold
= FALSE
;
4123 term
->curr_attr
&= ~ATTR_BOLD
;
4129 term
->termstate
= VT52_Y2
;
4130 move(term
, term
->curs
.x
, c
- ' ', 0);
4133 term
->termstate
= TOPLEVEL
;
4134 move(term
, c
- ' ', term
->curs
.y
, 0);
4139 term
->termstate
= TOPLEVEL
;
4140 term
->curr_attr
&= ~ATTR_FGMASK
;
4141 term
->curr_attr
&= ~ATTR_BOLD
;
4142 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
4143 if ((c
& 0x8) || term
->vt52_bold
)
4144 term
->curr_attr
|= ATTR_BOLD
;
4146 set_erase_char(term
);
4149 term
->termstate
= TOPLEVEL
;
4150 term
->curr_attr
&= ~ATTR_BGMASK
;
4151 term
->curr_attr
&= ~ATTR_BLINK
;
4152 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
4154 /* Note: bold background */
4156 term
->curr_attr
|= ATTR_BLINK
;
4158 set_erase_char(term
);
4161 default: break; /* placate gcc warning about enum use */
4163 if (term
->selstate
!= NO_SELECTION
) {
4164 pos cursplus
= term
->curs
;
4166 check_selection(term
, term
->curs
, cursplus
);
4170 term_print_flush(term
);
4171 logflush(term
->logctx
);
4175 * To prevent having to run the reasonably tricky bidi algorithm
4176 * too many times, we maintain a cache of the last lineful of data
4177 * fed to the algorithm on each line of the display.
4179 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4180 termchar
*lbefore
, int width
)
4184 if (!term
->pre_bidi_cache
)
4185 return FALSE
; /* cache doesn't even exist yet! */
4187 if (line
>= term
->bidi_cache_size
)
4188 return FALSE
; /* cache doesn't have this many lines */
4190 if (!term
->pre_bidi_cache
[line
].chars
)
4191 return FALSE
; /* cache doesn't contain _this_ line */
4193 if (term
->pre_bidi_cache
[line
].width
!= width
)
4194 return FALSE
; /* line is wrong width */
4196 for (i
= 0; i
< width
; i
++)
4197 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4198 return FALSE
; /* line doesn't match cache */
4200 return TRUE
; /* it didn't match. */
4203 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4204 termchar
*lafter
, int width
)
4206 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4207 int j
= term
->bidi_cache_size
;
4208 term
->bidi_cache_size
= line
+1;
4209 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4210 term
->bidi_cache_size
,
4211 struct bidi_cache_entry
);
4212 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4213 term
->bidi_cache_size
,
4214 struct bidi_cache_entry
);
4215 while (j
< term
->bidi_cache_size
) {
4216 term
->pre_bidi_cache
[j
].chars
=
4217 term
->post_bidi_cache
[j
].chars
= NULL
;
4218 term
->pre_bidi_cache
[j
].width
=
4219 term
->post_bidi_cache
[j
].width
= -1;
4224 sfree(term
->pre_bidi_cache
[line
].chars
);
4225 sfree(term
->post_bidi_cache
[line
].chars
);
4227 term
->pre_bidi_cache
[line
].width
= width
;
4228 term
->pre_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4229 term
->post_bidi_cache
[line
].width
= width
;
4230 term
->post_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4232 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, width
* TSIZE
);
4233 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, width
* TSIZE
);
4237 * Given a context, update the window. Out of paranoia, we don't
4238 * allow WM_PAINT responses to do scrolling optimisations.
4240 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4242 int i
, it
, j
, our_curs_y
, our_curs_x
;
4247 termchar cursor_background
;
4248 unsigned long ticks
;
4249 #ifdef OPTIMISE_SCROLL
4250 struct scrollregion
*sr
;
4251 #endif /* OPTIMISE_SCROLL */
4253 cursor_background
= term
->basic_erase_char
;
4256 ch
= snewn(chlen
, wchar_t);
4259 * Check the visual bell state.
4261 if (term
->in_vbell
) {
4262 ticks
= GETTICKCOUNT();
4263 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
4264 term
->in_vbell
= FALSE
;
4267 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4270 * screen array, disptop, scrtop,
4272 * cfg.blinkpc, blink_is_real, tblinker,
4273 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4276 /* Has the cursor position or type changed ? */
4277 if (term
->cursor_on
) {
4278 if (term
->has_focus
) {
4279 if (term
->blinker
|| !term
->cfg
.blink_cur
)
4280 cursor
= TATTR_ACTCURS
;
4284 cursor
= TATTR_PASCURS
;
4286 cursor
|= TATTR_RIGHTCURS
;
4289 our_curs_y
= term
->curs
.y
- term
->disptop
;
4292 * Adjust the cursor position in the case where it's
4293 * resting on the right-hand half of a CJK wide character.
4294 * xterm's behaviour here, which seems adequate to me, is
4295 * to display the cursor covering the _whole_ character,
4296 * exactly as if it were one space to the left.
4298 termline
*ldata
= lineptr(term
->curs
.y
);
4299 our_curs_x
= term
->curs
.x
;
4300 if (our_curs_x
> 0 &&
4301 ldata
->chars
[our_curs_x
].chr
== UCSWIDE
)
4307 * If the cursor is not where it was last time we painted, and
4308 * its previous position is visible on screen, invalidate its
4309 * previous position.
4311 if (term
->dispcursy
>= 0 &&
4312 (term
->curstype
!= cursor
||
4313 term
->dispcursy
!= our_curs_y
||
4314 term
->dispcursx
!= our_curs_x
)) {
4315 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4318 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4319 dispcurs
[-1].attr
|= ATTR_INVALID
;
4320 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4321 dispcurs
[1].attr
|= ATTR_INVALID
;
4322 dispcurs
->attr
|= ATTR_INVALID
;
4326 term
->dispcursx
= term
->dispcursy
= -1;
4328 #ifdef OPTIMISE_SCROLL
4330 sr
= term
->scrollhead
;
4332 struct scrollregion
*next
= sr
->next
;
4333 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4337 term
->scrollhead
= term
->scrolltail
= NULL
;
4338 #endif /* OPTIMISE_SCROLL */
4340 /* The normal screen data */
4341 for (i
= 0; i
< term
->rows
; i
++) {
4344 int dirty_line
, dirty_run
, selected
;
4345 unsigned long attr
= 0, cset
= 0;
4346 int updated_line
= 0;
4349 int last_run_dirty
= 0;
4351 scrpos
.y
= i
+ term
->disptop
;
4352 ldata
= lineptr(scrpos
.y
);
4354 dirty_run
= dirty_line
= (ldata
->lattr
!=
4355 term
->disptext
[i
]->lattr
);
4356 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4358 /* Do Arabic shaping and bidi. */
4359 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4361 if (!term_bidi_cache_hit(term
, i
, ldata
->chars
, term
->cols
)) {
4363 if (term
->wcFromTo_size
< term
->cols
) {
4364 term
->wcFromTo_size
= term
->cols
;
4365 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4367 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4371 for(it
=0; it
<term
->cols
; it
++)
4373 unsigned long uc
= (ldata
->chars
[it
].chr
);
4375 switch (uc
& CSET_MASK
) {
4377 if (!term
->cfg
.rawcnp
) {
4378 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4382 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4385 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4388 switch (uc
& CSET_MASK
) {
4390 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4393 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4397 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4399 term
->wcFrom
[it
].index
= it
;
4403 do_bidi(term
->wcFrom
, term
->cols
);
4405 /* this is saved iff done from inside the shaping */
4406 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4407 for(it
=0; it
<term
->cols
; it
++)
4408 term
->wcTo
[it
] = term
->wcFrom
[it
];
4410 if(!term
->cfg
.arabicshaping
)
4411 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4413 if (term
->ltemp_size
< ldata
->size
) {
4414 term
->ltemp_size
= ldata
->size
;
4415 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4419 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4421 for(it
=0; it
<term
->cols
; it
++)
4423 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4424 if (term
->ltemp
[it
].cc_next
)
4425 term
->ltemp
[it
].cc_next
-=
4426 it
- term
->wcTo
[it
].index
;
4428 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4429 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4431 term_bidi_cache_store(term
, i
, ldata
->chars
,
4432 term
->ltemp
, ldata
->size
);
4434 lchars
= term
->ltemp
;
4436 lchars
= term
->post_bidi_cache
[i
].chars
;
4439 lchars
= ldata
->chars
;
4441 for (j
= 0; j
< term
->cols
; j
++) {
4442 unsigned long tattr
, tchar
;
4443 termchar
*d
= lchars
+ j
;
4444 int break_run
, do_copy
;
4450 if (!term
->cfg
.ansi_colour
)
4451 tattr
= (tattr
& ~(ATTR_FGMASK
| ATTR_BGMASK
)) |
4452 ATTR_DEFFG
| ATTR_DEFBG
;
4454 switch (tchar
& CSET_MASK
) {
4456 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4459 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4462 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4465 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4468 /* Video reversing things */
4469 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4470 if (term
->seltype
== LEXICOGRAPHIC
)
4471 selected
= (posle(term
->selstart
, scrpos
) &&
4472 poslt(scrpos
, term
->selend
));
4474 selected
= (posPle(term
->selstart
, scrpos
) &&
4475 posPlt(scrpos
, term
->selend
));
4479 ^ (selected ? ATTR_REVERSE
: 0));
4481 /* 'Real' blinking ? */
4482 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4483 if (term
->has_focus
&& term
->tblinker
) {
4484 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4486 tattr
&= ~ATTR_BLINK
;
4490 * Check the font we'll _probably_ be using to see if
4491 * the character is wide when we don't want it to be.
4493 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4494 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4496 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4497 tattr
|= ATTR_NARROW
;
4498 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4499 tattr
|= ATTR_NARROW
;
4501 /* Cursor here ? Save the 'background' */
4502 if (i
== our_curs_y
&& j
== our_curs_x
) {
4504 cursor_background
.chr
= tchar
;
4505 cursor_background
.attr
= tattr
;
4506 /* For once, this cc_next field is an absolute index in lchars */
4508 cursor_background
.cc_next
= d
->cc_next
+ j
;
4510 cursor_background
.cc_next
= 0;
4511 term
->dispcursx
= j
;
4512 term
->dispcursy
= i
;
4515 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4518 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4520 /* Special hack for VT100 Linedraw glyphs */
4521 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4525 * Separate out sequences of characters that have the
4526 * same CSET, if that CSET is a magic one.
4528 if (CSET_OF(tchar
) != cset
)
4532 * Break on both sides of any combined-character cell.
4534 if (d
->cc_next
!= 0 ||
4535 (j
> 0 && d
[-1].cc_next
!= 0))
4538 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4539 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4540 term
->disptext
[i
]->chars
[j
].attr
== tattr
)
4542 else if (!dirty_run
&& ccount
== 1)
4547 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4548 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4554 cset
= CSET_OF(tchar
);
4555 if (term
->ucsdata
->dbcs_screenfont
)
4556 last_run_dirty
= dirty_run
;
4557 dirty_run
= dirty_line
;
4561 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4567 if (ccount
>= chlen
) {
4568 chlen
= ccount
+ 256;
4569 ch
= sresize(ch
, chlen
, wchar_t);
4571 ch
[ccount
++] = (wchar_t) tchar
;
4576 while (dd
->cc_next
) {
4577 unsigned long schar
;
4582 switch (schar
& CSET_MASK
) {
4584 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4587 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4590 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4594 if (ccount
>= chlen
) {
4595 chlen
= ccount
+ 256;
4596 ch
= sresize(ch
, chlen
, wchar_t);
4598 ch
[ccount
++] = (wchar_t) schar
;
4601 attr
|= TATTR_COMBINING
;
4605 copy_termchar(term
->disptext
[i
], j
, d
);
4606 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
4607 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
4610 /* If it's a wide char step along to the next one. */
4611 if (tattr
& ATTR_WIDE
) {
4612 if (++j
< term
->cols
) {
4615 * By construction above, the cursor should not
4616 * be on the right-hand half of this character.
4619 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
4620 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
4622 copy_termchar(term
->disptext
[i
], j
, d
);
4626 if (dirty_run
&& ccount
> 0) {
4627 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4631 /* Cursor on this line ? (and changed) */
4632 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
4633 ch
[0] = (wchar_t) cursor_background
.chr
;
4634 attr
= cursor_background
.attr
| cursor
;
4637 if (cursor_background
.cc_next
) {
4638 termchar
*dd
= ldata
->chars
+ cursor_background
.cc_next
;
4641 unsigned long schar
;
4644 switch (schar
& CSET_MASK
) {
4646 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4649 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4652 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4656 if (ccount
>= chlen
) {
4657 chlen
= ccount
+ 256;
4658 ch
= sresize(ch
, chlen
, wchar_t);
4660 ch
[ccount
++] = (wchar_t) schar
;
4668 attr
|= TATTR_COMBINING
;
4671 do_cursor(ctx
, our_curs_x
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4672 term
->curstype
= cursor
;
4682 * Flick the switch that says if blinking things should be shown or hidden.
4685 void term_blink(Terminal
*term
, int flg
)
4687 long now
, blink_diff
;
4689 now
= GETTICKCOUNT();
4690 blink_diff
= now
- term
->last_tblink
;
4692 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
4693 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
4694 term
->last_tblink
= now
;
4695 term
->tblinker
= !term
->tblinker
;
4700 term
->last_blink
= now
;
4704 blink_diff
= now
- term
->last_blink
;
4706 /* Make sure the cursor blinks no faster than system blink rate */
4707 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
4710 term
->last_blink
= now
;
4711 term
->blinker
= !term
->blinker
;
4715 * Invalidate the whole screen so it will be repainted in full.
4717 void term_invalidate(Terminal
*term
)
4721 for (i
= 0; i
< term
->rows
; i
++)
4722 for (j
= 0; j
< term
->cols
; j
++)
4723 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4727 * Paint the window in response to a WM_PAINT message.
4729 void term_paint(Terminal
*term
, Context ctx
,
4730 int left
, int top
, int right
, int bottom
, int immediately
)
4733 if (left
< 0) left
= 0;
4734 if (top
< 0) top
= 0;
4735 if (right
>= term
->cols
) right
= term
->cols
-1;
4736 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
4738 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
4739 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
4740 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
4741 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4743 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
4744 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4747 /* This should happen soon enough, also for some reason it sometimes
4748 * fails to actually do anything when re-sizing ... painting the wrong
4752 do_paint (term
, ctx
, FALSE
);
4756 * Attempt to scroll the scrollback. The second parameter gives the
4757 * position we want to scroll to; the first is +1 to denote that
4758 * this position is relative to the beginning of the scrollback, -1
4759 * to denote it is relative to the end, and 0 to denote that it is
4760 * relative to the current position.
4762 void term_scroll(Terminal
*term
, int rel
, int where
)
4764 int sbtop
= -sblines(term
);
4765 #ifdef OPTIMISE_SCROLL
4766 int olddisptop
= term
->disptop
;
4768 #endif /* OPTIMISE_SCROLL */
4770 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
4771 if (term
->disptop
< sbtop
)
4772 term
->disptop
= sbtop
;
4773 if (term
->disptop
> 0)
4776 #ifdef OPTIMISE_SCROLL
4777 shift
= (term
->disptop
- olddisptop
);
4778 if (shift
< term
->rows
&& shift
> -term
->rows
)
4779 scroll_display(term
, 0, term
->rows
- 1, shift
);
4780 #endif /* OPTIMISE_SCROLL */
4784 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
4787 wchar_t *wbptr
; /* where next char goes within workbuf */
4789 int wblen
= 0; /* workbuf len */
4790 int buflen
; /* amount of memory allocated to workbuf */
4792 buflen
= 5120; /* Default size */
4793 workbuf
= snewn(buflen
, wchar_t);
4794 wbptr
= workbuf
; /* start filling here */
4795 old_top_x
= top
.x
; /* needed for rect==1 */
4797 while (poslt(top
, bottom
)) {
4799 termline
*ldata
= lineptr(top
.y
);
4803 * nlpos will point at the maximum position on this line we
4804 * should copy up to. So we start it at the end of the
4808 nlpos
.x
= term
->cols
;
4811 * ... move it backwards if there's unused space at the end
4812 * of the line (and also set `nl' if this is the case,
4813 * because in normal selection mode this means we need a
4814 * newline at the end)...
4816 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
4817 while (IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
4818 !ldata
->chars
[nlpos
.x
- 1].cc_next
&&
4821 if (poslt(nlpos
, bottom
))
4823 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
4824 /* Ignore the last char on the line in a WRAPPED2 line. */
4829 * ... and then clip it to the terminal x coordinate if
4830 * we're doing rectangular selection. (In this case we
4831 * still did the above, so that copying e.g. the right-hand
4832 * column from a table doesn't fill with spaces on the
4836 if (nlpos
.x
> bottom
.x
)
4838 nl
= (top
.y
< bottom
.y
);
4841 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
4844 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
4846 wchar_t cbuf
[16], *p
;
4850 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
4856 int uc
= ldata
->chars
[x
].chr
;
4858 switch (uc
& CSET_MASK
) {
4860 if (!term
->cfg
.rawcnp
) {
4861 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4865 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4868 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4871 switch (uc
& CSET_MASK
) {
4873 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4876 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4880 set
= (uc
& CSET_MASK
);
4881 c
= (uc
& ~CSET_MASK
);
4885 if (DIRECT_FONT(uc
)) {
4886 if (c
>= ' ' && c
!= 0x7F) {
4890 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
4892 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
4893 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
4897 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
4901 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
4908 for (p
= cbuf
; *p
; p
++) {
4909 /* Enough overhead for trailing NL and nul */
4910 if (wblen
>= buflen
- 16) {
4912 workbuf
= sresize(workbuf
, buflen
, wchar_t);
4913 wbptr
= workbuf
+ wblen
;
4919 if (ldata
->chars
[x
].cc_next
)
4920 x
+= ldata
->chars
[x
].cc_next
;
4928 for (i
= 0; i
< sel_nl_sz
; i
++) {
4930 *wbptr
++ = sel_nl
[i
];
4934 top
.x
= rect ? old_top_x
: 0;
4938 #if SELECTION_NUL_TERMINATED
4942 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
4943 if (buflen
> 0) /* indicates we allocated this buffer */
4947 void term_copyall(Terminal
*term
)
4951 tree234
*screen
= term
->screen
;
4952 top
.y
= -sblines(term
);
4954 bottom
.y
= find_last_nonempty_line(term
, screen
);
4955 bottom
.x
= term
->cols
;
4956 clipme(term
, top
, bottom
, 0, TRUE
);
4960 * The wordness array is mainly for deciding the disposition of the
4961 * US-ASCII characters.
4963 static int wordtype(Terminal
*term
, int uc
)
4966 int start
, end
, ctype
;
4968 static const struct ucsword ucs_words
[] = {
4974 0x037e, 0x037e, 1}, /* Greek question mark */
4976 0x0387, 0x0387, 1}, /* Greek ano teleia */
4978 0x055a, 0x055f, 1}, /* Armenian punctuation */
4980 0x0589, 0x0589, 1}, /* Armenian full stop */
4982 0x0700, 0x070d, 1}, /* Syriac punctuation */
4984 0x104a, 0x104f, 1}, /* Myanmar punctuation */
4986 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
4988 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
4990 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
4992 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
4994 0x1800, 0x180a, 1}, /* Mongolian punctuation */
4996 0x2000, 0x200a, 0}, /* Various spaces */
4998 0x2070, 0x207f, 2}, /* superscript */
5000 0x2080, 0x208f, 2}, /* subscript */
5002 0x200b, 0x27ff, 1}, /* punctuation and symbols */
5004 0x3000, 0x3000, 0}, /* ideographic space */
5006 0x3001, 0x3020, 1}, /* ideographic punctuation */
5008 0x303f, 0x309f, 3}, /* Hiragana */
5010 0x30a0, 0x30ff, 3}, /* Katakana */
5012 0x3300, 0x9fff, 3}, /* CJK Ideographs */
5014 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5016 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5018 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5020 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5022 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5024 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5026 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5028 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5032 const struct ucsword
*wptr
;
5034 switch (uc
& CSET_MASK
) {
5036 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5039 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5042 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5045 switch (uc
& CSET_MASK
) {
5047 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5050 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5054 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5055 * fail as there's such a thing as a double width space. :-(
5057 if (term
->ucsdata
->dbcs_screenfont
&&
5058 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5062 return term
->wordness
[uc
];
5064 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5065 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5073 * Spread the selection outwards according to the selection mode.
5075 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5079 int topy
= -sblines(term
);
5081 ldata
= lineptr(p
.y
);
5083 switch (term
->selmode
) {
5086 * In this mode, every character is a separate unit, except
5087 * for runs of spaces at the end of a non-wrapping line.
5089 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5090 termchar
*q
= ldata
->chars
+ term
->cols
;
5091 while (q
> ldata
->chars
&&
5092 IS_SPACE_CHR(q
[-1].chr
) && !q
[-1].cc_next
)
5094 if (q
== ldata
->chars
+ term
->cols
)
5096 if (p
.x
>= q
- ldata
->chars
)
5097 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5102 * In this mode, the units are maximal runs of characters
5103 * whose `wordness' has the same value.
5105 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5108 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5109 term
->cols
-1 : term
->cols
);
5110 if (p
.x
< maxcols
-1) {
5111 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5116 if (ldata
->lattr
& LATTR_WRAPPED
) {
5118 ldata2
= lineptr(p
.y
+1);
5119 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5136 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5145 ldata2
= lineptr(p
.y
-1);
5146 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5147 term
->cols
-1 : term
->cols
);
5148 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5149 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5167 * In this mode, every line is a unit.
5169 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5177 static void sel_spread(Terminal
*term
)
5179 if (term
->seltype
== LEXICOGRAPHIC
) {
5180 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5181 decpos(term
->selend
);
5182 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5183 incpos(term
->selend
);
5187 void term_do_paste(Terminal
*term
)
5192 get_clip(term
->frontend
, &data
, &len
);
5193 if (data
&& len
> 0) {
5196 term_seen_key_event(term
); /* pasted data counts */
5198 if (term
->paste_buffer
)
5199 sfree(term
->paste_buffer
);
5200 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5201 term
->paste_buffer
= snewn(len
, wchar_t);
5204 while (p
< data
+ len
) {
5205 while (p
< data
+ len
&&
5206 !(p
<= data
+ len
- sel_nl_sz
&&
5207 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5212 for (i
= 0; i
< p
- q
; i
++) {
5213 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5217 if (p
<= data
+ len
- sel_nl_sz
&&
5218 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5219 term
->paste_buffer
[term
->paste_len
++] = '\015';
5225 /* Assume a small paste will be OK in one go. */
5226 if (term
->paste_len
< 256) {
5228 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5229 if (term
->paste_buffer
)
5230 sfree(term
->paste_buffer
);
5231 term
->paste_buffer
= 0;
5232 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5235 get_clip(term
->frontend
, NULL
, NULL
);
5238 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5239 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5243 int raw_mouse
= (term
->xterm_mouse
&&
5244 !term
->cfg
.no_mouse_rep
&&
5245 !(term
->cfg
.mouse_override
&& shift
));
5246 int default_seltype
;
5250 if (a
== MA_DRAG
&& !raw_mouse
)
5251 term_scroll(term
, 0, -1);
5253 if (y
>= term
->rows
) {
5255 if (a
== MA_DRAG
&& !raw_mouse
)
5256 term_scroll(term
, 0, +1);
5265 if (x
>= term
->cols
)
5268 selpoint
.y
= y
+ term
->disptop
;
5270 ldata
= lineptr(selpoint
.y
);
5271 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5276 int encstate
= 0, r
, c
;
5283 encstate
= 0x20; /* left button down */
5294 case MBT_WHEEL_DOWN
:
5297 default: break; /* placate gcc warning about enum use */
5301 if (term
->xterm_mouse
== 1)
5307 term
->mouse_is_down
= 0;
5310 if (term
->mouse_is_down
== braw
)
5312 term
->mouse_is_down
= braw
;
5314 default: break; /* placate gcc warning about enum use */
5323 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5324 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5330 * Set the selection type (rectangular or normal) at the start
5331 * of a selection attempt, from the state of Alt.
5333 if (!alt
^ !term
->cfg
.rect_select
)
5334 default_seltype
= RECTANGULAR
;
5336 default_seltype
= LEXICOGRAPHIC
;
5338 if (term
->selstate
== NO_SELECTION
) {
5339 term
->seltype
= default_seltype
;
5342 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5344 term
->selstate
= ABOUT_TO
;
5345 term
->seltype
= default_seltype
;
5346 term
->selanchor
= selpoint
;
5347 term
->selmode
= SM_CHAR
;
5348 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5350 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5351 term
->selstate
= DRAGGING
;
5352 term
->selstart
= term
->selanchor
= selpoint
;
5353 term
->selend
= term
->selstart
;
5354 incpos(term
->selend
);
5356 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5357 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5358 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5360 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5361 term
->selstate
== SELECTED
) {
5362 if (term
->seltype
== LEXICOGRAPHIC
) {
5364 * For normal selection, we extend by moving
5365 * whichever end of the current selection is closer
5368 if (posdiff(selpoint
, term
->selstart
) <
5369 posdiff(term
->selend
, term
->selstart
) / 2) {
5370 term
->selanchor
= term
->selend
;
5371 decpos(term
->selanchor
);
5373 term
->selanchor
= term
->selstart
;
5377 * For rectangular selection, we have a choice of
5378 * _four_ places to put selanchor and selpoint: the
5379 * four corners of the selection.
5381 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5382 term
->selanchor
.x
= term
->selend
.x
-1;
5384 term
->selanchor
.x
= term
->selstart
.x
;
5386 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5387 term
->selanchor
.y
= term
->selend
.y
;
5389 term
->selanchor
.y
= term
->selstart
.y
;
5391 term
->selstate
= DRAGGING
;
5393 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5394 term
->selanchor
= selpoint
;
5395 term
->selstate
= DRAGGING
;
5396 if (term
->seltype
== LEXICOGRAPHIC
) {
5398 * For normal selection, we set (selstart,selend) to
5399 * (selpoint,selanchor) in some order.
5401 if (poslt(selpoint
, term
->selanchor
)) {
5402 term
->selstart
= selpoint
;
5403 term
->selend
= term
->selanchor
;
5404 incpos(term
->selend
);
5406 term
->selstart
= term
->selanchor
;
5407 term
->selend
= selpoint
;
5408 incpos(term
->selend
);
5412 * For rectangular selection, we may need to
5413 * interchange x and y coordinates (if the user has
5414 * dragged in the -x and +y directions, or vice versa).
5416 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5417 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5418 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5419 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5422 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5424 if (term
->selstate
== DRAGGING
) {
5426 * We've completed a selection. We now transfer the
5427 * data to the clipboard.
5429 clipme(term
, term
->selstart
, term
->selend
,
5430 (term
->seltype
== RECTANGULAR
), FALSE
);
5431 term
->selstate
= SELECTED
;
5433 term
->selstate
= NO_SELECTION
;
5434 } else if (bcooked
== MBT_PASTE
5436 #if MULTICLICK_ONLY_EVENT
5437 || a
== MA_2CLK
|| a
== MA_3CLK
5440 request_paste(term
->frontend
);
5446 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5447 unsigned int modifiers
, unsigned int flags
)
5451 int prependesc
= FALSE
;
5455 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5456 for (i
= 0; i
< tlen
; i
++)
5457 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5458 fprintf(stderr
, "\n");
5462 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5465 /* Currently, Meta always just prefixes everything with ESC. */
5466 if (modifiers
& PKM_META
)
5468 modifiers
&= ~PKM_META
;
5471 * Alt is only used for Alt+keypad, which isn't supported yet, so
5474 modifiers
&= ~PKM_ALT
;
5476 /* Standard local function keys */
5477 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5479 if (keysym
== PK_PAGEUP
)
5480 /* scroll up one page */;
5481 if (keysym
== PK_PAGEDOWN
)
5482 /* scroll down on page */;
5483 if (keysym
== PK_INSERT
)
5484 term_do_paste(term
);
5487 if (keysym
== PK_PAGEUP
)
5488 /* scroll up one line */;
5489 if (keysym
== PK_PAGEDOWN
)
5490 /* scroll down one line */;
5491 /* Control-Numlock for app-keypad mode switch */
5492 if (keysym
== PK_PF1
)
5493 term
->app_keypad_keys
^= 1;
5497 if (modifiers
& PKM_ALT
) {
5498 /* Alt+F4 (close) */
5499 /* Alt+Return (full screen) */
5500 /* Alt+Space (system menu) */
5503 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5504 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5505 /* ASCII chars + Control */
5506 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5507 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5511 * Control-2 should return ^@ (0x00), Control-6 should return
5512 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5513 * the DOS keyboard handling did it, and we have nothing better
5514 * to do with the key combo in question, we'll also map
5515 * Control-Backquote to ^\ (0x1C).
5518 case ' ': text
[0] = 0x00; break;
5519 case '-': text
[0] = 0x1f; break;
5520 case '/': text
[0] = 0x1f; break;
5521 case '2': text
[0] = 0x00; break;
5522 case '3': text
[0] = 0x1b; break;
5523 case '4': text
[0] = 0x1c; break;
5524 case '5': text
[0] = 0x1d; break;
5525 case '6': text
[0] = 0x1e; break;
5526 case '7': text
[0] = 0x1f; break;
5527 case '8': text
[0] = 0x7f; break;
5528 case '`': text
[0] = 0x1c; break;
5533 /* Nethack keypad */
5534 if (term
->cfg
.nethack_keypad
) {
5537 case PK_KP1
: c
= 'b'; break;
5538 case PK_KP2
: c
= 'j'; break;
5539 case PK_KP3
: c
= 'n'; break;
5540 case PK_KP4
: c
= 'h'; break;
5541 case PK_KP5
: c
= '.'; break;
5542 case PK_KP6
: c
= 'l'; break;
5543 case PK_KP7
: c
= 'y'; break;
5544 case PK_KP8
: c
= 'k'; break;
5545 case PK_KP9
: c
= 'u'; break;
5546 default: break; /* else gcc warns `enum value not used' */
5550 if (modifiers
& PKM_CONTROL
)
5552 else if (modifiers
& PKM_SHIFT
)
5560 /* Numeric Keypad */
5561 if (PK_ISKEYPAD(keysym
)) {
5565 * In VT400 mode, PFn always emits an escape sequence. In
5566 * Linux and tilde modes, this only happens in app keypad mode.
5568 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5569 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5570 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5571 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5573 case PK_PF1
: xkey
= 'P'; break;
5574 case PK_PF2
: xkey
= 'Q'; break;
5575 case PK_PF3
: xkey
= 'R'; break;
5576 case PK_PF4
: xkey
= 'S'; break;
5577 default: break; /* else gcc warns `enum value not used' */
5580 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5582 case PK_KP0
: xkey
= 'p'; break;
5583 case PK_KP1
: xkey
= 'q'; break;
5584 case PK_KP2
: xkey
= 'r'; break;
5585 case PK_KP3
: xkey
= 's'; break;
5586 case PK_KP4
: xkey
= 't'; break;
5587 case PK_KP5
: xkey
= 'u'; break;
5588 case PK_KP6
: xkey
= 'v'; break;
5589 case PK_KP7
: xkey
= 'w'; break;
5590 case PK_KP8
: xkey
= 'x'; break;
5591 case PK_KP9
: xkey
= 'y'; break;
5592 case PK_KPDECIMAL
: xkey
= 'n'; break;
5593 case PK_KPENTER
: xkey
= 'M'; break;
5594 default: break; /* else gcc warns `enum value not used' */
5596 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5598 * xterm can't see the layout of the keypad, so it has
5599 * to rely on the X keysyms returned by the keys.
5600 * Hence, we look at the strings here, not the PuTTY
5601 * keysyms (which describe the layout).
5605 if (modifiers
& PKM_SHIFT
)
5610 case '/': xkey
= 'o'; break;
5611 case '*': xkey
= 'j'; break;
5612 case '-': xkey
= 'm'; break;
5616 * In all other modes, we try to retain the layout of
5617 * the DEC keypad in application mode.
5621 /* This key covers the '-' and ',' keys on a VT220 */
5622 if (modifiers
& PKM_SHIFT
)
5623 xkey
= 'm'; /* VT220 '-' */
5625 xkey
= 'l'; /* VT220 ',' */
5627 case PK_KPMINUS
: xkey
= 'm'; break;
5628 case PK_KPCOMMA
: xkey
= 'l'; break;
5629 default: break; /* else gcc warns `enum value not used' */
5634 if (term
->vt52_mode
) {
5635 if (xkey
>= 'P' && xkey
<= 'S')
5636 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5638 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
5640 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5643 /* Not in application mode -- treat the number pad as arrow keys? */
5644 if ((flags
& PKF_NUMLOCK
) == 0) {
5646 case PK_KP0
: keysym
= PK_INSERT
; break;
5647 case PK_KP1
: keysym
= PK_END
; break;
5648 case PK_KP2
: keysym
= PK_DOWN
; break;
5649 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
5650 case PK_KP4
: keysym
= PK_LEFT
; break;
5651 case PK_KP5
: keysym
= PK_REST
; break;
5652 case PK_KP6
: keysym
= PK_RIGHT
; break;
5653 case PK_KP7
: keysym
= PK_HOME
; break;
5654 case PK_KP8
: keysym
= PK_UP
; break;
5655 case PK_KP9
: keysym
= PK_PAGEUP
; break;
5656 default: break; /* else gcc warns `enum value not used' */
5661 /* Miscellaneous keys */
5668 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
5669 else if (modifiers
== PKM_SHIFT
)
5670 /* We do the opposite of what is configured */
5671 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
5677 else if (modifiers
== PKM_SHIFT
)
5678 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
5681 /* XXX window.c has ctrl+shift+space sending 0xa0 */
5683 if (modifiers
== PKM_CONTROL
)
5688 case PK_KPENTER
: /* Odd keypad modes handled above */
5689 if (modifiers
== 0) {
5691 if (term
->cr_lf_return
)
5695 default: break; /* else gcc warns `enum value not used' */
5698 /* SCO function keys and editing keys */
5699 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
5700 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
5701 static char const codes
[] =
5702 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
5703 int index
= keysym
- PK_F1
;
5705 if (modifiers
& PKM_SHIFT
) index
+= 12;
5706 if (modifiers
& PKM_CONTROL
) index
+= 24;
5707 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
5710 if (PK_ISEDITING(keysym
)) {
5714 case PK_DELETE
: *p
++ = 0x7f; goto done
;
5715 case PK_HOME
: xkey
= 'H'; break;
5716 case PK_INSERT
: xkey
= 'L'; break;
5717 case PK_END
: xkey
= 'F'; break;
5718 case PK_PAGEUP
: xkey
= 'I'; break;
5719 case PK_PAGEDOWN
: xkey
= 'G'; break;
5720 default: break; /* else gcc warns `enum value not used' */
5722 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5726 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
5729 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
5730 /* Xterm shuffles these keys, apparently. */
5732 case PK_HOME
: keysym
= PK_INSERT
; break;
5733 case PK_INSERT
: keysym
= PK_HOME
; break;
5734 case PK_DELETE
: keysym
= PK_END
; break;
5735 case PK_END
: keysym
= PK_PAGEUP
; break;
5736 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
5737 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
5738 default: break; /* else gcc warns `enum value not used' */
5743 if (term
->cfg
.rxvt_homeend
&&
5744 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
5745 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
5749 if (term
->vt52_mode
) {
5753 * A real VT52 doesn't have these, and a VT220 doesn't
5754 * send anything for them in VT52 mode.
5757 case PK_HOME
: xkey
= 'H'; break;
5758 case PK_INSERT
: xkey
= 'L'; break;
5759 case PK_DELETE
: xkey
= 'M'; break;
5760 case PK_END
: xkey
= 'E'; break;
5761 case PK_PAGEUP
: xkey
= 'I'; break;
5762 case PK_PAGEDOWN
: xkey
= 'G'; break;
5763 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
5765 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5770 case PK_HOME
: code
= 1; break;
5771 case PK_INSERT
: code
= 2; break;
5772 case PK_DELETE
: code
= 3; break;
5773 case PK_END
: code
= 4; break;
5774 case PK_PAGEUP
: code
= 5; break;
5775 case PK_PAGEDOWN
: code
= 6; break;
5776 default: code
= 0; break; /* else gcc warns `enum value not used' */
5778 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
5782 if (PK_ISFKEY(keysym
)) {
5783 /* Map Shift+F1-F10 to F11-F20 */
5784 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
5786 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
5788 /* XXX This overrides the XTERM/VT52 mode below */
5790 if (keysym
>= PK_F6
) offt
++;
5791 if (keysym
>= PK_F12
) offt
++;
5792 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
5793 'P' + keysym
- PK_F1
- offt
);
5796 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
5797 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
5800 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
5801 if (term
->vt52_mode
)
5802 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
5804 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
5807 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
5811 if (PK_ISCURSOR(keysym
)) {
5815 case PK_UP
: xkey
= 'A'; break;
5816 case PK_DOWN
: xkey
= 'B'; break;
5817 case PK_RIGHT
: xkey
= 'C'; break;
5818 case PK_LEFT
: xkey
= 'D'; break;
5819 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
5820 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
5822 if (term
->vt52_mode
)
5823 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5825 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
5827 /* Useful mapping of Ctrl-arrows */
5828 if (modifiers
== PKM_CONTROL
)
5832 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5834 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5840 if (p
> output
|| tlen
> 0) {
5842 * Interrupt an ongoing paste. I'm not sure
5843 * this is sensible, but for the moment it's
5844 * preferable to having to faff about buffering
5850 * We need not bother about stdin backlogs
5851 * here, because in GUI PuTTY we can't do
5852 * anything about it anyway; there's no means
5853 * of asking Windows to hold off on KEYDOWN
5854 * messages. We _have_ to buffer everything
5857 term_seen_key_event(term
);
5861 fprintf(stderr
, "sending ESC\n");
5863 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
5868 fprintf(stderr
, "sending %d bytes:", p
- output
);
5869 for (i
= 0; i
< p
- output
; i
++)
5870 fprintf(stderr
, " %02x", output
[i
]);
5871 fprintf(stderr
, "\n");
5873 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
5874 } else if (tlen
> 0) {
5876 fprintf(stderr
, "sending %d unichars:", tlen
);
5877 for (i
= 0; i
< tlen
; i
++)
5878 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
5879 fprintf(stderr
, "\n");
5881 luni_send(term
->ldisc
, text
, tlen
, 1);
5886 void term_nopaste(Terminal
*term
)
5888 if (term
->paste_len
== 0)
5890 sfree(term
->paste_buffer
);
5891 term
->paste_buffer
= NULL
;
5892 term
->paste_len
= 0;
5895 int term_paste_pending(Terminal
*term
)
5897 return term
->paste_len
!= 0;
5900 void term_paste(Terminal
*term
)
5902 long now
, paste_diff
;
5904 if (term
->paste_len
== 0)
5907 /* Don't wait forever to paste */
5908 if (term
->paste_hold
) {
5909 now
= GETTICKCOUNT();
5910 paste_diff
= now
- term
->last_paste
;
5911 if (paste_diff
>= 0 && paste_diff
< 450)
5914 term
->paste_hold
= 0;
5916 while (term
->paste_pos
< term
->paste_len
) {
5918 while (n
+ term
->paste_pos
< term
->paste_len
) {
5919 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
5923 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
5924 term
->paste_pos
+= n
;
5926 if (term
->paste_pos
< term
->paste_len
) {
5927 term
->paste_hold
= 1;
5931 sfree(term
->paste_buffer
);
5932 term
->paste_buffer
= NULL
;
5933 term
->paste_len
= 0;
5936 static void deselect(Terminal
*term
)
5938 term
->selstate
= NO_SELECTION
;
5939 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
5942 void term_deselect(Terminal
*term
)
5948 int term_ldisc(Terminal
*term
, int option
)
5950 if (option
== LD_ECHO
)
5951 return term
->term_echoing
;
5952 if (option
== LD_EDIT
)
5953 return term
->term_editing
;
5957 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
5959 bufchain_add(&term
->inbuf
, data
, len
);
5961 if (!term
->in_term_out
) {
5962 term
->in_term_out
= TRUE
;
5963 term_blink(term
, 1);
5965 term
->in_term_out
= FALSE
;
5969 * term_out() always completely empties inbuf. Therefore,
5970 * there's no reason at all to return anything other than zero
5971 * from this function, because there _can't_ be a question of
5972 * the remote side needing to wait until term_out() has cleared
5975 * This is a slightly suboptimal way to deal with SSH2 - in
5976 * principle, the window mechanism would allow us to continue
5977 * to accept data on forwarded ports and X connections even
5978 * while the terminal processing was going slowly - but we
5979 * can't do the 100% right thing without moving the terminal
5980 * processing into a separate thread, and that might hurt
5981 * portability. So we manage stdout buffering the old SSH1 way:
5982 * if the terminal processing goes slowly, the whole SSH
5983 * connection stops accepting data until it's ready.
5985 * In practice, I can't imagine this causing serious trouble.
5990 void term_provide_logctx(Terminal
*term
, void *logctx
)
5992 term
->logctx
= logctx
;