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
);
183 * Add a combining character to a character cell.
185 static void add_cc(termline
*line
, int col
, unsigned long chr
)
189 assert(col
>= 0 && col
< line
->cols
);
192 * Start by extending the cols array if the free list is empty.
194 if (!line
->cc_free
) {
196 line
->size
+= 16 + (line
->size
- line
->cols
) / 2;
197 line
->chars
= sresize(line
->chars
, line
->size
, termchar
);
199 while (n
< line
->size
) {
200 if (n
+1 < line
->size
)
201 line
->chars
[n
].cc_next
= 1;
203 line
->chars
[n
].cc_next
= 0;
209 * Now walk the cc list of the cell in question.
211 while (line
->chars
[col
].cc_next
)
212 col
+= line
->chars
[col
].cc_next
;
215 * `col' now points at the last cc currently in this cell; so
216 * we simply add another one.
218 newcc
= line
->cc_free
;
219 if (line
->chars
[newcc
].cc_next
)
220 line
->cc_free
= newcc
+ line
->chars
[newcc
].cc_next
;
223 line
->chars
[newcc
].cc_next
= 0;
224 line
->chars
[newcc
].chr
= chr
;
225 line
->chars
[col
].cc_next
= newcc
- col
;
227 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
231 * Clear the combining character list in a character cell.
233 static void clear_cc(termline
*line
, int col
)
235 int oldfree
, origcol
= col
;
237 assert(col
>= 0 && col
< line
->cols
);
239 if (!line
->chars
[col
].cc_next
)
240 return; /* nothing needs doing */
242 oldfree
= line
->cc_free
;
243 line
->cc_free
= col
+ line
->chars
[col
].cc_next
;
244 while (line
->chars
[col
].cc_next
)
245 col
+= line
->chars
[col
].cc_next
;
247 line
->chars
[col
].cc_next
= oldfree
- col
;
249 line
->chars
[col
].cc_next
= 0;
251 line
->chars
[origcol
].cc_next
= 0;
253 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
257 * Compare two character cells for equality. Special case required
258 * in do_paint() where we override what we expect the chr and attr
261 static int termchars_equal_override(termchar
*a
, termchar
*b
,
262 unsigned long bchr
, unsigned long battr
)
267 if (a
->attr
!= battr
)
269 while (a
->cc_next
|| b
->cc_next
) {
270 if (!a
->cc_next
|| !b
->cc_next
)
271 return FALSE
; /* one cc-list ends, other does not */
274 if (a
->chr
!= b
->chr
)
280 static int termchars_equal(termchar
*a
, termchar
*b
)
282 return termchars_equal_override(a
, b
, b
->chr
, b
->attr
);
286 * Copy a character cell. (Requires a pointer to the destination
287 * termline, so as to access its free list.)
289 static void copy_termchar(termline
*destline
, int x
, termchar
*src
)
291 clear_cc(destline
, x
);
293 destline
->chars
[x
] = *src
; /* copy everything except cc-list */
294 destline
->chars
[x
].cc_next
= 0; /* and make sure this is zero */
296 while (src
->cc_next
) {
298 add_cc(destline
, x
, src
->chr
);
301 cc_check(destline
); /* XXX-REMOVE-BEFORE-RELEASE */
305 * Move a character cell within its termline.
307 static void move_termchar(termline
*line
, termchar
*dest
, termchar
*src
)
309 /* First clear the cc list from the original char, just in case. */
310 clear_cc(line
, dest
- line
->chars
);
312 /* Move the character cell and adjust its cc_next. */
313 *dest
= *src
; /* copy everything except cc-list */
315 dest
->cc_next
= src
->cc_next
- (dest
-src
);
317 /* Ensure the original cell doesn't have a cc list. */
320 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
324 * Compress and decompress a termline into an RLE-based format for
325 * storing in scrollback. (Since scrollback almost never needs to
326 * be modified and exists in huge quantities, this is a sensible
327 * tradeoff, particularly since it allows us to continue adding
328 * features to the main termchar structure without proportionally
329 * bloating the terminal emulator's memory footprint unless those
330 * features are in constant use.)
336 static void add(struct buf
*b
, unsigned char c
)
338 if (b
->len
>= b
->size
) {
339 b
->size
= (b
->len
* 3 / 2) + 512;
340 b
->data
= sresize(b
->data
, b
->size
, unsigned char);
342 b
->data
[b
->len
++] = c
;
344 static int get(struct buf
*b
)
346 return b
->data
[b
->len
++];
348 static void makerle(struct buf
*b
, termline
*ldata
,
349 void (*makeliteral
)(struct buf
*b
, termchar
*c
,
350 unsigned long *state
))
352 int hdrpos
, hdrsize
, n
, prevlen
, prevpos
, thislen
, thispos
, prev2
;
353 termchar
*c
= ldata
->chars
;
354 unsigned long state
= 0, oldstate
;
361 prevlen
= prevpos
= 0;
366 makeliteral(b
, c
++, &state
);
367 thislen
= b
->len
- thispos
;
368 if (thislen
== prevlen
&&
369 !memcmp(b
->data
+ prevpos
, b
->data
+ thispos
, thislen
)) {
371 * This literal precisely matches the previous one.
372 * Turn it into a run if it's worthwhile.
374 * With one-byte literals, it costs us two bytes to
375 * encode a run, plus another byte to write the header
376 * to resume normal output; so a three-element run is
377 * neutral, and anything beyond that is unconditionally
378 * worthwhile. With two-byte literals or more, even a
381 if (thislen
> 1 || prev2
) {
385 * It's worth encoding a run. Start at prevpos,
386 * unless hdrsize==0 in which case we can back up
387 * another one and start by overwriting hdrpos.
390 hdrsize
--; /* remove the literal at prevpos */
394 prevpos
-= prevlen
;/* and possibly another one */
398 assert(prevpos
== hdrpos
+ 1);
400 b
->len
= prevpos
+prevlen
;
402 memmove(b
->data
+ prevpos
+1, b
->data
+ prevpos
, prevlen
);
404 b
->len
= prevpos
+prevlen
+1;
406 * Terminate the previous run of ordinary
409 assert(hdrsize
>= 1 && hdrsize
<= 128);
410 b
->data
[hdrpos
] = hdrsize
- 1;
413 runlen
= prev2 ?
3 : 2;
415 while (n
> 0 && runlen
< 129) {
419 makeliteral(b
, c
, &state
);
420 tmplen
= b
->len
- tmppos
;
422 if (tmplen
!= thislen
||
423 memcmp(b
->data
+ runpos
+1, b
->data
+ tmppos
, tmplen
)) {
425 break; /* run over */
430 assert(runlen
>= 2 && runlen
<= 129);
431 b
->data
[runpos
] = runlen
+ 0x80 - 2;
440 * Just flag that the previous two literals were
441 * identical, in case we find a third identical one
442 * we want to turn into a run.
455 * This character isn't (yet) part of a run. Add it to
459 if (hdrsize
== 128) {
460 b
->data
[hdrpos
] = hdrsize
- 1;
464 prevlen
= prevpos
= 0;
473 assert(hdrsize
<= 128);
474 b
->data
[hdrpos
] = hdrsize
- 1;
479 static void makeliteral_chr(struct buf
*b
, termchar
*c
, unsigned long *state
)
482 * My encoding for characters is UTF-8-like, in that it stores
483 * 7-bit ASCII in one byte and uses high-bit-set bytes as
484 * introducers to indicate a longer sequence. However, it's
485 * unlike UTF-8 in that it doesn't need to be able to
486 * resynchronise, and therefore I don't want to waste two bits
487 * per byte on having recognisable continuation characters.
488 * Also I don't want to rule out the possibility that I may one
489 * day use values 0x80000000-0xFFFFFFFF for interesting
490 * purposes, so unlike UTF-8 I need a full 32-bit range.
491 * Accordingly, here is my encoding:
493 * 00000000-0000007F: 0xxxxxxx (but see below)
494 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
495 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
496 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
497 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
499 * (`Z' is like `x' but is always going to be zero since the
500 * values I'm encoding don't go above 2^32. In principle the
501 * five-byte form of the encoding could extend to 2^35, and
502 * there could be six-, seven-, eight- and nine-byte forms as
503 * well to allow up to 64-bit values to be encoded. But that's
504 * completely unnecessary for these purposes!)
506 * The encoding as written above would be very simple, except
507 * that 7-bit ASCII can occur in several different ways in the
508 * terminal data; sometimes it crops up in the D800 page
509 * (CSET_ASCII) but at other times it's in the 0000 page (real
510 * Unicode). Therefore, this encoding is actually _stateful_:
511 * the one-byte encoding of 00-7F actually indicates `reuse the
512 * upper three bytes of the last character', and to encode an
513 * absolute value of 00-7F you need to use the two-byte form
516 if ((c
->chr
& ~0x7F) == *state
) {
517 add(b
, (unsigned char)(c
->chr
& 0x7F));
518 } else if (c
->chr
< 0x4000) {
519 add(b
, (unsigned char)(((c
->chr
>> 8) & 0x3F) | 0x80));
520 add(b
, (unsigned char)(c
->chr
& 0xFF));
521 } else if (c
->chr
< 0x200000) {
522 add(b
, (unsigned char)(((c
->chr
>> 16) & 0x1F) | 0xC0));
523 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
524 add(b
, (unsigned char)(c
->chr
& 0xFF));
525 } else if (c
->chr
< 0x10000000) {
526 add(b
, (unsigned char)(((c
->chr
>> 24) & 0x0F) | 0xE0));
527 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
528 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
529 add(b
, (unsigned char)(c
->chr
& 0xFF));
532 add(b
, (unsigned char)((c
->chr
>> 24) & 0xFF));
533 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
534 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
535 add(b
, (unsigned char)(c
->chr
& 0xFF));
537 *state
= c
->chr
& ~0xFF;
539 static void makeliteral_attr(struct buf
*b
, termchar
*c
, unsigned long *state
)
542 * My encoding for attributes is 16-bit-granular and assumes
543 * that the top bit of the word is never required. I either
544 * store a two-byte value with the top bit clear (indicating
545 * just that value), or a four-byte value with the top bit set
546 * (indicating the same value with its top bit clear).
548 if (c
->attr
< 0x8000) {
549 add(b
, (unsigned char)((c
->attr
>> 8) & 0xFF));
550 add(b
, (unsigned char)(c
->attr
& 0xFF));
552 add(b
, (unsigned char)(((c
->attr
>> 24) & 0x7F) | 0x80));
553 add(b
, (unsigned char)((c
->attr
>> 16) & 0xFF));
554 add(b
, (unsigned char)((c
->attr
>> 8) & 0xFF));
555 add(b
, (unsigned char)(c
->attr
& 0xFF));
558 static void makeliteral_cc(struct buf
*b
, termchar
*c
, unsigned long *state
)
561 * For combining characters, I just encode a bunch of ordinary
562 * chars using makeliteral_chr, and terminate with a \0
563 * character (which I know won't come up as a combining char
566 * I don't use the stateful encoding in makeliteral_chr.
568 unsigned long zstate
;
577 makeliteral_chr(b
, c
, &zstate
);
582 makeliteral_chr(b
, &z
, &zstate
);
585 static termline
*decompressline(unsigned char *data
, int *bytes_used
);
587 static unsigned char *compressline(termline
*ldata
)
589 struct buf buffer
= { NULL
, 0, 0 }, *b
= &buffer
;
592 * First, store the column count, 7 bits at a time, least
593 * significant `digit' first, with the high bit set on all but
599 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
602 add(b
, (unsigned char)(n
));
606 * Next store the lattrs; same principle.
609 int n
= ldata
->lattr
;
611 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
614 add(b
, (unsigned char)(n
));
618 * Now we store a sequence of separate run-length encoded
619 * fragments, each containing exactly as many symbols as there
620 * are columns in the ldata.
622 * All of these have a common basic format:
624 * - a byte 00-7F indicates that X+1 literals follow it
625 * - a byte 80-FF indicates that a single literal follows it
626 * and expects to be repeated (X-0x80)+2 times.
628 * The format of the `literals' varies between the fragments.
630 makerle(b
, ldata
, makeliteral_chr
);
631 makerle(b
, ldata
, makeliteral_attr
);
632 makerle(b
, ldata
, makeliteral_cc
);
635 * Diagnostics: ensure that the compressed data really does
636 * decompress to the right thing.
638 #ifndef CHECK_SB_COMPRESSION
644 #ifdef DIAGNOSTIC_SB_COMPRESSION
645 for (i
= 0; i
< b
->len
; i
++) {
646 printf(" %02x ", b
->data
[i
]);
651 dcl
= decompressline(b
->data
, &dused
);
652 assert(b
->len
== dused
);
653 assert(ldata
->cols
== dcl
->cols
);
654 assert(ldata
->lattr
== dcl
->lattr
);
655 for (i
= 0; i
< ldata
->cols
; i
++)
656 assert(termchars_equal(&ldata
->chars
[i
], &dcl
->chars
[i
]));
658 #ifdef DIAGNOSTIC_SB_COMPRESSION
659 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
660 ldata
->cols
, 4 * ldata
->cols
, dused
,
661 (double)dused
/ (4 * ldata
->cols
));
669 * Trim the allocated memory so we don't waste any, and return.
671 return sresize(b
->data
, b
->len
, unsigned char);
674 static void readrle(struct buf
*b
, termline
*ldata
,
675 void (*readliteral
)(struct buf
*b
, termchar
*c
,
676 termline
*ldata
, unsigned long *state
))
679 unsigned long state
= 0;
681 while (n
< ldata
->cols
) {
687 int pos
= b
->len
, count
= hdr
+ 2 - 0x80;
689 assert(n
< ldata
->cols
);
691 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
695 /* Just a sequence of consecutive literals. */
699 assert(n
< ldata
->cols
);
700 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
706 assert(n
== ldata
->cols
);
708 static void readliteral_chr(struct buf
*b
, termchar
*c
, termline
*ldata
,
709 unsigned long *state
)
714 * 00000000-0000007F: 0xxxxxxx
715 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
716 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
717 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
718 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
723 c
->chr
= byte
| *state
;
724 } else if (byte
< 0xC0) {
725 c
->chr
= (byte
&~ 0xC0) << 8;
727 } else if (byte
< 0xE0) {
728 c
->chr
= (byte
&~ 0xE0) << 16;
729 c
->chr
|= get(b
) << 8;
731 } else if (byte
< 0xF0) {
732 c
->chr
= (byte
&~ 0xF0) << 24;
733 c
->chr
|= get(b
) << 16;
734 c
->chr
|= get(b
) << 8;
737 assert(byte
== 0xF0);
738 c
->chr
= get(b
) << 24;
739 c
->chr
|= get(b
) << 16;
740 c
->chr
|= get(b
) << 8;
743 *state
= c
->chr
& ~0xFF;
745 static void readliteral_attr(struct buf
*b
, termchar
*c
, termline
*ldata
,
746 unsigned long *state
)
761 static void readliteral_cc(struct buf
*b
, termchar
*c
, termline
*ldata
,
762 unsigned long *state
)
765 unsigned long zstate
;
766 int x
= c
- ldata
->chars
;
772 readliteral_chr(b
, &n
, ldata
, &zstate
);
775 add_cc(ldata
, x
, n
.chr
);
779 static termline
*decompressline(unsigned char *data
, int *bytes_used
)
781 int ncols
, byte
, shift
;
782 struct buf buffer
, *b
= &buffer
;
789 * First read in the column count.
794 ncols
|= (byte
& 0x7F) << shift
;
796 } while (byte
& 0x80);
799 * Now create the output termline.
801 ldata
= snew(termline
);
802 ldata
->chars
= snewn(ncols
, termchar
);
803 ldata
->cols
= ldata
->size
= ncols
;
804 ldata
->temporary
= TRUE
;
808 * We must set all the cc pointers in ldata->chars to 0 right
809 * now, so that cc diagnostics that verify the integrity of the
810 * whole line will make sense while we're in the middle of
815 for (i
= 0; i
< ldata
->cols
; i
++)
816 ldata
->chars
[i
].cc_next
= 0;
820 * Now read in the lattr.
822 ldata
->lattr
= shift
= 0;
825 ldata
->lattr
|= (byte
& 0x7F) << shift
;
827 } while (byte
& 0x80);
830 * Now we read in each of the RLE streams in turn.
832 readrle(b
, ldata
, readliteral_chr
);
833 readrle(b
, ldata
, readliteral_attr
);
834 readrle(b
, ldata
, readliteral_cc
);
836 /* Return the number of bytes read, for diagnostic purposes. */
838 *bytes_used
= b
->len
;
844 * Resize a line to make it `cols' columns wide.
846 static void resizeline(Terminal
*term
, termline
*line
, int cols
)
850 if (line
->cols
!= cols
) {
852 oldcols
= line
->cols
;
855 * This line is the wrong length, which probably means it
856 * hasn't been accessed since a resize. Resize it now.
858 * First, go through all the characters that will be thrown
859 * out in the resize (if we're shrinking the line) and
860 * return their cc lists to the cc free list.
862 for (i
= cols
; i
< oldcols
; i
++)
866 * If we're shrinking the line, we now bodily move the
867 * entire cc section from where it started to where it now
868 * needs to be. (We have to do this before the resize, so
869 * that the data we're copying is still there. However, if
870 * we're expanding, we have to wait until _after_ the
871 * resize so that the space we're copying into is there.)
874 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
875 (line
->size
- line
->cols
) * TSIZE
);
878 * Now do the actual resize, leaving the _same_ amount of
879 * cc space as there was to begin with.
881 line
->size
+= cols
- oldcols
;
882 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
886 * If we're expanding the line, _now_ we move the cc
890 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
891 (line
->size
- line
->cols
) * TSIZE
);
894 * Go through what's left of the original line, and adjust
895 * the first cc_next pointer in each list. (All the
896 * subsequent ones are still valid because they are
897 * relative offsets within the cc block.) Also do the same
898 * to the head of the cc_free list.
900 for (i
= 0; i
< oldcols
&& i
< cols
; i
++)
901 if (line
->chars
[i
].cc_next
)
902 line
->chars
[i
].cc_next
+= cols
- oldcols
;
904 line
->cc_free
+= cols
- oldcols
;
907 * And finally fill in the new space with erase chars. (We
908 * don't have to worry about cc lists here, because we
909 * _know_ the erase char doesn't have one.)
911 for (i
= oldcols
; i
< cols
; i
++)
912 line
->chars
[i
] = term
->basic_erase_char
;
914 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
919 * Get the number of lines in the scrollback.
921 static int sblines(Terminal
*term
)
923 int sblines
= count234(term
->scrollback
);
924 if (term
->cfg
.erase_to_scrollback
&&
925 term
->alt_which
&& term
->alt_screen
) {
926 sblines
+= term
->alt_sblines
;
932 * Retrieve a line of the screen or of the scrollback, according to
933 * whether the y coordinate is non-negative or negative
936 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
943 whichtree
= term
->screen
;
950 if (term
->cfg
.erase_to_scrollback
&&
951 term
->alt_which
&& term
->alt_screen
) {
952 altlines
= term
->alt_sblines
;
955 whichtree
= term
->scrollback
;
956 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
958 whichtree
= term
->alt_screen
;
959 treeindex
= y
+ term
->alt_sblines
;
960 /* treeindex = y + count234(term->alt_screen); */
963 if (whichtree
== term
->scrollback
) {
964 unsigned char *cline
= index234(whichtree
, treeindex
);
965 line
= decompressline(cline
, NULL
);
967 line
= index234(whichtree
, treeindex
);
970 /* We assume that we don't screw up and retrieve something out of range. */
971 assert(line
!= NULL
);
973 resizeline(term
, line
, term
->cols
);
974 /* FIXME: should we sort the compressed scrollback out here? */
979 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
980 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
983 * Set up power-on settings for the terminal.
985 static void power_on(Terminal
*term
)
987 term
->curs
.x
= term
->curs
.y
= 0;
988 term
->alt_x
= term
->alt_y
= 0;
989 term
->savecurs
.x
= term
->savecurs
.y
= 0;
990 term
->alt_t
= term
->marg_t
= 0;
991 if (term
->rows
!= -1)
992 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
994 term
->alt_b
= term
->marg_b
= 0;
995 if (term
->cols
!= -1) {
997 for (i
= 0; i
< term
->cols
; i
++)
998 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1000 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1001 term
->alt_ins
= term
->insert
= FALSE
;
1002 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
1003 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1004 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
1005 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
1006 term
->utf_state
= 0;
1007 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
1008 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= CSET_ASCII
;
1010 term
->in_vbell
= FALSE
;
1011 term
->cursor_on
= 1;
1012 term
->big_cursor
= 0;
1013 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
1014 term
->term_editing
= term
->term_echoing
= FALSE
;
1015 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1016 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1017 term
->use_bce
= term
->cfg
.bce
;
1018 term
->blink_is_real
= term
->cfg
.blinktext
;
1019 term
->erase_char
= term
->basic_erase_char
;
1020 term
->alt_which
= 0;
1021 term_print_finish(term
);
1024 for (i
= 0; i
< 256; i
++)
1025 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1028 swap_screen(term
, 1, FALSE
, FALSE
);
1029 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1030 swap_screen(term
, 0, FALSE
, FALSE
);
1031 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1036 * Force a screen update.
1038 void term_update(Terminal
*term
)
1041 ctx
= get_ctx(term
->frontend
);
1043 int need_sbar_update
= term
->seen_disp_event
;
1044 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1045 term
->disptop
= 0; /* return to main screen */
1046 term
->seen_disp_event
= 0;
1047 need_sbar_update
= TRUE
;
1050 if (need_sbar_update
)
1052 do_paint(term
, ctx
, TRUE
);
1053 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1059 * Called from front end when a keypress occurs, to trigger
1060 * anything magical that needs to happen in that situation.
1062 void term_seen_key_event(Terminal
*term
)
1065 * On any keypress, clear the bell overload mechanism
1066 * completely, on the grounds that large numbers of
1067 * beeps coming from deliberate key action are likely
1068 * to be intended (e.g. beeps from filename completion
1069 * blocking repeatedly).
1071 term
->beep_overloaded
= FALSE
;
1072 while (term
->beephead
) {
1073 struct beeptime
*tmp
= term
->beephead
;
1074 term
->beephead
= tmp
->next
;
1077 term
->beeptail
= NULL
;
1081 * Reset the scrollback on keypress, if we're doing that.
1083 if (term
->cfg
.scroll_on_key
) {
1084 term
->disptop
= 0; /* return to main screen */
1085 term
->seen_disp_event
= 1;
1090 * Same as power_on(), but an external function.
1092 void term_pwron(Terminal
*term
)
1095 if (term
->ldisc
) /* cause ldisc to notice changes */
1096 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1102 static void set_erase_char(Terminal
*term
)
1104 term
->erase_char
= term
->basic_erase_char
;
1106 term
->erase_char
.attr
= (term
->curr_attr
&
1107 (ATTR_FGMASK
| ATTR_BGMASK
));
1111 * When the user reconfigures us, we need to check the forbidden-
1112 * alternate-screen config option, disable raw mouse mode if the
1113 * user has disabled mouse reporting, and abandon a print job if
1114 * the user has disabled printing.
1116 void term_reconfig(Terminal
*term
, Config
*cfg
)
1119 * Before adopting the new config, check all those terminal
1120 * settings which control power-on defaults; and if they've
1121 * changed, we will modify the current state as well as the
1122 * default one. The full list is: Auto wrap mode, DEC Origin
1123 * Mode, BCE, blinking text, character classes.
1125 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
1128 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1129 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1130 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1131 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1132 reset_charclass
= 0;
1133 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1134 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1135 reset_charclass
= 1;
1138 * If the bidi or shaping settings have changed, flush the bidi
1141 if (term
->cfg
.arabicshaping
!= cfg
->arabicshaping
||
1142 term
->cfg
.bidi
!= cfg
->bidi
) {
1143 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1144 sfree(term
->pre_bidi_cache
[i
].chars
);
1145 sfree(term
->post_bidi_cache
[i
].chars
);
1146 term
->pre_bidi_cache
[i
].width
= -1;
1147 term
->pre_bidi_cache
[i
].chars
= NULL
;
1148 term
->post_bidi_cache
[i
].width
= -1;
1149 term
->post_bidi_cache
[i
].chars
= NULL
;
1153 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1156 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1158 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1160 term
->use_bce
= term
->cfg
.bce
;
1161 set_erase_char(term
);
1164 term
->blink_is_real
= term
->cfg
.blinktext
;
1165 if (reset_charclass
)
1166 for (i
= 0; i
< 256; i
++)
1167 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1169 if (term
->cfg
.no_alt_screen
)
1170 swap_screen(term
, 0, FALSE
, FALSE
);
1171 if (term
->cfg
.no_mouse_rep
) {
1172 term
->xterm_mouse
= 0;
1173 set_raw_mouse_mode(term
->frontend
, 0);
1175 if (term
->cfg
.no_remote_charset
) {
1176 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1177 term
->sco_acs
= term
->alt_sco_acs
= 0;
1180 if (!*term
->cfg
.printer
) {
1181 term_print_finish(term
);
1186 * Clear the scrollback.
1188 void term_clrsb(Terminal
*term
)
1192 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1193 sfree(line
); /* this is compressed data, not a termline */
1195 term
->tempsblines
= 0;
1196 term
->alt_sblines
= 0;
1201 * Initialise the terminal.
1203 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1209 * Allocate a new Terminal structure and initialise the fields
1212 term
= snew(Terminal
);
1213 term
->frontend
= frontend
;
1214 term
->ucsdata
= ucsdata
;
1215 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1216 term
->logctx
= NULL
;
1217 term
->compatibility_level
= TM_PUTTY
;
1218 strcpy(term
->id_string
, "\033[?6c");
1219 term
->last_blink
= term
->last_tblink
= 0;
1220 term
->paste_buffer
= NULL
;
1221 term
->paste_len
= 0;
1222 term
->last_paste
= 0;
1223 bufchain_init(&term
->inbuf
);
1224 bufchain_init(&term
->printer_buf
);
1225 term
->printing
= term
->only_printing
= FALSE
;
1226 term
->print_job
= NULL
;
1227 term
->vt52_mode
= FALSE
;
1228 term
->cr_lf_return
= FALSE
;
1229 term
->seen_disp_event
= FALSE
;
1230 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1231 term
->reset_132
= FALSE
;
1232 term
->blinker
= term
->tblinker
= 0;
1233 term
->has_focus
= 1;
1234 term
->repeat_off
= FALSE
;
1235 term
->termstate
= TOPLEVEL
;
1236 term
->selstate
= NO_SELECTION
;
1239 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1240 term
->tempsblines
= 0;
1241 term
->alt_sblines
= 0;
1243 term
->disptext
= NULL
;
1244 term
->dispcursx
= term
->dispcursy
= -1;
1247 term
->rows
= term
->cols
= -1;
1249 term
->beephead
= term
->beeptail
= NULL
;
1250 #ifdef OPTIMISE_SCROLL
1251 term
->scrollhead
= term
->scrolltail
= NULL
;
1252 #endif /* OPTIMISE_SCROLL */
1254 term
->lastbeep
= FALSE
;
1255 term
->beep_overloaded
= FALSE
;
1256 term
->attr_mask
= 0xffffffff;
1257 term
->resize_fn
= NULL
;
1258 term
->resize_ctx
= NULL
;
1259 term
->in_term_out
= FALSE
;
1261 term
->ltemp_size
= 0;
1262 term
->wcFrom
= NULL
;
1264 term
->wcFromTo_size
= 0;
1266 term
->bidi_cache_size
= 0;
1267 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1270 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1271 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1272 term
->basic_erase_char
.cc_next
= 0;
1273 term
->erase_char
= term
->basic_erase_char
;
1278 void term_free(Terminal
*term
)
1281 struct beeptime
*beep
;
1284 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1285 sfree(line
); /* compressed data, not a termline */
1286 freetree234(term
->scrollback
);
1287 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1289 freetree234(term
->screen
);
1290 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1292 freetree234(term
->alt_screen
);
1293 if (term
->disptext
) {
1294 for (i
= 0; i
< term
->rows
; i
++)
1295 freeline(term
->disptext
[i
]);
1297 sfree(term
->disptext
);
1298 while (term
->beephead
) {
1299 beep
= term
->beephead
;
1300 term
->beephead
= beep
->next
;
1303 bufchain_clear(&term
->inbuf
);
1305 printer_finish_job(term
->print_job
);
1306 bufchain_clear(&term
->printer_buf
);
1307 sfree(term
->paste_buffer
);
1309 sfree(term
->wcFrom
);
1312 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1313 sfree(term
->pre_bidi_cache
[i
].chars
);
1314 sfree(term
->post_bidi_cache
[i
].chars
);
1316 sfree(term
->pre_bidi_cache
);
1317 sfree(term
->post_bidi_cache
);
1323 * Set up the terminal for a given size.
1325 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1328 termline
**newdisp
, *line
;
1329 int i
, j
, oldrows
= term
->rows
;
1331 int save_alt_which
= term
->alt_which
;
1333 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1334 newsavelines
== term
->savelines
)
1335 return; /* nothing to do */
1338 swap_screen(term
, 0, FALSE
, FALSE
);
1340 term
->alt_t
= term
->marg_t
= 0;
1341 term
->alt_b
= term
->marg_b
= newrows
- 1;
1343 if (term
->rows
== -1) {
1344 term
->scrollback
= newtree234(NULL
);
1345 term
->screen
= newtree234(NULL
);
1346 term
->tempsblines
= 0;
1351 * Resize the screen and scrollback. We only need to shift
1352 * lines around within our data structures, because lineptr()
1353 * will take care of resizing each individual line if
1356 * - If the new screen is longer, we shunt lines in from temporary
1357 * scrollback if possible, otherwise we add new blank lines at
1360 * - If the new screen is shorter, we remove any blank lines at
1361 * the bottom if possible, otherwise shunt lines above the cursor
1362 * to scrollback if possible, otherwise delete lines below the
1365 * - Then, if the new scrollback length is less than the
1366 * amount of scrollback we actually have, we must throw some
1369 sblen
= count234(term
->scrollback
);
1370 /* Do this loop to expand the screen if newrows > rows */
1371 assert(term
->rows
== count234(term
->screen
));
1372 while (term
->rows
< newrows
) {
1373 if (term
->tempsblines
> 0) {
1374 unsigned char *cline
;
1375 /* Insert a line from the scrollback at the top of the screen. */
1376 assert(sblen
>= term
->tempsblines
);
1377 cline
= delpos234(term
->scrollback
, --sblen
);
1378 line
= decompressline(cline
, NULL
);
1380 line
->temporary
= FALSE
; /* reconstituted line is now real */
1381 term
->tempsblines
-= 1;
1382 addpos234(term
->screen
, line
, 0);
1384 term
->savecurs
.y
+= 1;
1386 /* Add a new blank line at the bottom of the screen. */
1387 line
= newline(term
, newcols
, FALSE
);
1388 addpos234(term
->screen
, line
, count234(term
->screen
));
1392 /* Do this loop to shrink the screen if newrows < rows */
1393 while (term
->rows
> newrows
) {
1394 if (term
->curs
.y
< term
->rows
- 1) {
1395 /* delete bottom row, unless it contains the cursor */
1396 sfree(delpos234(term
->screen
, term
->rows
- 1));
1398 /* push top row to scrollback */
1399 line
= delpos234(term
->screen
, 0);
1400 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1402 term
->tempsblines
+= 1;
1404 term
->savecurs
.y
-= 1;
1408 assert(term
->rows
== newrows
);
1409 assert(count234(term
->screen
) == newrows
);
1411 /* Delete any excess lines from the scrollback. */
1412 while (sblen
> newsavelines
) {
1413 line
= delpos234(term
->scrollback
, 0);
1417 if (sblen
< term
->tempsblines
)
1418 term
->tempsblines
= sblen
;
1419 assert(count234(term
->scrollback
) <= newsavelines
);
1420 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1423 /* Make a new displayed text buffer. */
1424 newdisp
= snewn(newrows
, termline
*);
1425 for (i
= 0; i
< newrows
; i
++) {
1426 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1427 for (j
= 0; j
< newcols
; j
++)
1428 newdisp
[i
]->chars
[i
].attr
= ATTR_INVALID
;
1430 if (term
->disptext
) {
1431 for (i
= 0; i
< oldrows
; i
++)
1432 freeline(term
->disptext
[i
]);
1434 sfree(term
->disptext
);
1435 term
->disptext
= newdisp
;
1436 term
->dispcursx
= term
->dispcursy
= -1;
1438 /* Make a new alternate screen. */
1439 newalt
= newtree234(NULL
);
1440 for (i
= 0; i
< newrows
; i
++) {
1441 line
= newline(term
, newcols
, TRUE
);
1442 addpos234(newalt
, line
, i
);
1444 if (term
->alt_screen
) {
1445 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1447 freetree234(term
->alt_screen
);
1449 term
->alt_screen
= newalt
;
1450 term
->alt_sblines
= 0;
1452 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1455 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1456 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1459 /* Check that the cursor positions are still valid. */
1460 if (term
->savecurs
.y
< 0)
1461 term
->savecurs
.y
= 0;
1462 if (term
->savecurs
.y
>= newrows
)
1463 term
->savecurs
.y
= newrows
- 1;
1464 if (term
->curs
.y
< 0)
1466 if (term
->curs
.y
>= newrows
)
1467 term
->curs
.y
= newrows
- 1;
1468 if (term
->curs
.x
>= newcols
)
1469 term
->curs
.x
= newcols
- 1;
1470 term
->alt_x
= term
->alt_y
= 0;
1471 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1473 term
->rows
= newrows
;
1474 term
->cols
= newcols
;
1475 term
->savelines
= newsavelines
;
1477 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1481 if (term
->resize_fn
)
1482 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1486 * Hand a function and context pointer to the terminal which it can
1487 * use to notify a back end of resizes.
1489 void term_provide_resize_fn(Terminal
*term
,
1490 void (*resize_fn
)(void *, int, int),
1493 term
->resize_fn
= resize_fn
;
1494 term
->resize_ctx
= resize_ctx
;
1495 if (term
->cols
> 0 && term
->rows
> 0)
1496 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1499 /* Find the bottom line on the screen that has any content.
1500 * If only the top line has content, returns 0.
1501 * If no lines have content, return -1.
1503 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1506 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1507 termline
*line
= index234(screen
, i
);
1509 for (j
= 0; j
< line
->cols
; j
++)
1510 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1512 if (j
!= line
->cols
) break;
1518 * Swap screens. If `reset' is TRUE and we have been asked to
1519 * switch to the alternate screen, we must bring most of its
1520 * configuration from the main screen and erase the contents of the
1521 * alternate screen completely. (This is even true if we're already
1522 * on it! Blame xterm.)
1524 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1530 reset
= FALSE
; /* do no weird resetting if which==0 */
1532 if (which
!= term
->alt_which
) {
1533 term
->alt_which
= which
;
1535 ttr
= term
->alt_screen
;
1536 term
->alt_screen
= term
->screen
;
1538 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1540 if (!reset
&& !keep_cur_pos
)
1541 term
->curs
.x
= term
->alt_x
;
1544 if (!reset
&& !keep_cur_pos
)
1545 term
->curs
.y
= term
->alt_y
;
1548 if (!reset
) term
->marg_t
= term
->alt_t
;
1551 if (!reset
) term
->marg_b
= term
->alt_b
;
1554 if (!reset
) term
->dec_om
= term
->alt_om
;
1557 if (!reset
) term
->wrap
= term
->alt_wrap
;
1560 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1561 term
->alt_wnext
= t
;
1563 if (!reset
) term
->insert
= term
->alt_ins
;
1566 if (!reset
) term
->cset
= term
->alt_cset
;
1569 if (!reset
) term
->utf
= term
->alt_utf
;
1572 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1573 term
->alt_sco_acs
= t
;
1576 if (reset
&& term
->screen
) {
1578 * Yes, this _is_ supposed to honour background-colour-erase.
1580 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1585 * Update the scroll bar.
1587 static void update_sbar(Terminal
*term
)
1589 int nscroll
= sblines(term
);
1590 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1591 nscroll
+ term
->disptop
, term
->rows
);
1595 * Check whether the region bounded by the two pointers intersects
1596 * the scroll region, and de-select the on-screen selection if so.
1598 static void check_selection(Terminal
*term
, pos from
, pos to
)
1600 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1605 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1606 * for backward.) `sb' is TRUE if the scrolling is permitted to
1607 * affect the scrollback buffer.
1609 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1612 int i
, seltop
, olddisptop
, shift
;
1614 if (topline
!= 0 || term
->alt_which
!= 0)
1617 olddisptop
= term
->disptop
;
1621 line
= delpos234(term
->screen
, botline
);
1622 resizeline(term
, line
, term
->cols
);
1623 for (i
= 0; i
< term
->cols
; i
++)
1624 copy_termchar(line
, i
, &term
->erase_char
);
1625 line
->lattr
= LATTR_NORM
;
1626 addpos234(term
->screen
, line
, topline
);
1628 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1630 if (term
->selstart
.y
> botline
) {
1631 term
->selstart
.y
= botline
+ 1;
1632 term
->selstart
.x
= 0;
1635 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1637 if (term
->selend
.y
> botline
) {
1638 term
->selend
.y
= botline
+ 1;
1647 line
= delpos234(term
->screen
, topline
);
1648 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
1649 if (sb
&& term
->savelines
> 0) {
1650 int sblen
= count234(term
->scrollback
);
1652 * We must add this line to the scrollback. We'll
1653 * remove a line from the top of the scrollback if
1654 * the scrollback is full.
1656 if (sblen
== term
->savelines
) {
1657 unsigned char *cline
;
1660 cline
= delpos234(term
->scrollback
, 0);
1663 term
->tempsblines
+= 1;
1665 addpos234(term
->scrollback
, compressline(line
), sblen
);
1667 line
= newline(term
, term
->cols
, TRUE
);
1670 * If the user is currently looking at part of the
1671 * scrollback, and they haven't enabled any options
1672 * that are going to reset the scrollback as a
1673 * result of this movement, then the chances are
1674 * they'd like to keep looking at the same line. So
1675 * we move their viewpoint at the same rate as the
1676 * scroll, at least until their viewpoint hits the
1677 * top end of the scrollback buffer, at which point
1678 * we don't have the choice any more.
1680 * Thanks to Jan Holmen Holsten for the idea and
1681 * initial implementation.
1683 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1686 resizeline(term
, line
, term
->cols
);
1687 for (i
= 0; i
< term
->cols
; i
++)
1688 copy_termchar(line
, i
, &term
->erase_char
);
1689 line
->lattr
= LATTR_NORM
;
1690 addpos234(term
->screen
, line
, botline
);
1693 * If the selection endpoints move into the scrollback,
1694 * we keep them moving until they hit the top. However,
1695 * of course, if the line _hasn't_ moved into the
1696 * scrollback then we don't do this, and cut them off
1697 * at the top of the scroll region.
1699 * This applies to selstart and selend (for an existing
1700 * selection), and also selanchor (for one being
1701 * selected as we speak).
1703 seltop
= sb ?
-term
->savelines
: topline
;
1705 if (term
->selstate
!= NO_SELECTION
) {
1706 if (term
->selstart
.y
>= seltop
&&
1707 term
->selstart
.y
<= botline
) {
1709 if (term
->selstart
.y
< seltop
) {
1710 term
->selstart
.y
= seltop
;
1711 term
->selstart
.x
= 0;
1714 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1716 if (term
->selend
.y
< seltop
) {
1717 term
->selend
.y
= seltop
;
1721 if (term
->selanchor
.y
>= seltop
&&
1722 term
->selanchor
.y
<= botline
) {
1723 term
->selanchor
.y
--;
1724 if (term
->selanchor
.y
< seltop
) {
1725 term
->selanchor
.y
= seltop
;
1726 term
->selanchor
.x
= 0;
1734 #ifdef OPTIMISE_SCROLL
1735 shift
+= term
->disptop
- olddisptop
;
1736 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1737 scroll_display(term
, topline
, botline
, shift
);
1738 #endif /* OPTIMISE_SCROLL */
1741 #ifdef OPTIMISE_SCROLL
1743 * Add a scroll of a region on the screen into the pending scroll list.
1744 * `lines' is +ve for scrolling forward, -ve for backward.
1746 * If the scroll is on the same area as the last scroll in the list,
1749 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
1751 struct scrollregion
*newscroll
;
1752 if (term
->scrolltail
&&
1753 term
->scrolltail
->topline
== topline
&&
1754 term
->scrolltail
->botline
== botline
) {
1755 term
->scrolltail
->lines
+= lines
;
1757 newscroll
= snew(struct scrollregion
);
1758 newscroll
->topline
= topline
;
1759 newscroll
->botline
= botline
;
1760 newscroll
->lines
= lines
;
1761 newscroll
->next
= NULL
;
1763 if (!term
->scrollhead
)
1764 term
->scrollhead
= newscroll
;
1766 term
->scrolltail
->next
= newscroll
;
1767 term
->scrolltail
= newscroll
;
1772 * Scroll the physical display, and our conception of it in disptext.
1774 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
1776 int distance
, nlines
, i
, j
;
1778 distance
= lines
> 0 ? lines
: -lines
;
1779 nlines
= botline
- topline
+ 1 - distance
;
1781 for (i
= 0; i
< nlines
; i
++)
1782 for (j
= 0; j
< term
->cols
; j
++)
1783 copy_termchar(term
->disptext
[start
+i
], j
,
1784 term
->disptext
[start
+i
+distance
]->chars
+j
);
1785 if (term
->dispcursy
>= 0 &&
1786 term
->dispcursy
>= topline
+ distance
&&
1787 term
->dispcursy
< topline
+ distance
+ nlines
)
1788 term
->dispcursy
-= distance
;
1789 for (i
= 0; i
< distance
; i
++)
1790 for (j
= 0; j
< term
->cols
; j
++)
1791 term
->disptext
[start
+nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1793 for (i
= nlines
; i
-- ;)
1794 for (j
= 0; j
< term
->cols
; j
++)
1795 copy_termchar(term
->disptext
[start
+i
+distance
], j
,
1796 term
->disptext
[start
+i
]->chars
+j
);
1797 if (term
->dispcursy
>= 0 &&
1798 term
->dispcursy
>= topline
&&
1799 term
->dispcursy
< topline
+ nlines
)
1800 term
->dispcursy
+= distance
;
1801 for (i
= 0; i
< distance
; i
++)
1802 for (j
= 0; j
< term
->cols
; j
++)
1803 term
->disptext
[start
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1805 save_scroll(term
, topline
, botline
, lines
);
1807 #endif /* OPTIMISE_SCROLL */
1810 * Move the cursor to a given position, clipping at boundaries. We
1811 * may or may not want to clip at the scroll margin: marg_clip is 0
1812 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
1813 * even _being_ outside the margins.
1815 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
1819 if (x
>= term
->cols
)
1822 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
1825 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
1831 if (y
>= term
->rows
)
1835 term
->wrapnext
= FALSE
;
1839 * Save or restore the cursor and SGR mode.
1841 static void save_cursor(Terminal
*term
, int save
)
1844 term
->savecurs
= term
->curs
;
1845 term
->save_attr
= term
->curr_attr
;
1846 term
->save_cset
= term
->cset
;
1847 term
->save_utf
= term
->utf
;
1848 term
->save_wnext
= term
->wrapnext
;
1849 term
->save_csattr
= term
->cset_attr
[term
->cset
];
1850 term
->save_sco_acs
= term
->sco_acs
;
1852 term
->curs
= term
->savecurs
;
1853 /* Make sure the window hasn't shrunk since the save */
1854 if (term
->curs
.x
>= term
->cols
)
1855 term
->curs
.x
= term
->cols
- 1;
1856 if (term
->curs
.y
>= term
->rows
)
1857 term
->curs
.y
= term
->rows
- 1;
1859 term
->curr_attr
= term
->save_attr
;
1860 term
->cset
= term
->save_cset
;
1861 term
->utf
= term
->save_utf
;
1862 term
->wrapnext
= term
->save_wnext
;
1864 * wrapnext might reset to False if the x position is no
1865 * longer at the rightmost edge.
1867 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
1868 term
->wrapnext
= FALSE
;
1869 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
1870 term
->sco_acs
= term
->save_sco_acs
;
1871 set_erase_char(term
);
1876 * This function is called before doing _anything_ which affects
1877 * only part of a line of text. It is used to mark the boundary
1878 * between two character positions, and it indicates that some sort
1879 * of effect is going to happen on only one side of that boundary.
1881 * The effect of this function is to check whether a CJK
1882 * double-width character is straddling the boundary, and to remove
1883 * it and replace it with two spaces if so. (Of course, one or
1884 * other of those spaces is then likely to be replaced with
1885 * something else again, as a result of whatever happens next.)
1887 * Also, if the boundary is at the right-hand _edge_ of the screen,
1888 * it implies something deliberate is being done to the rightmost
1889 * column position; hence we must clear LATTR_WRAPPED2.
1891 * The input to the function is the coordinates of the _second_
1892 * character of the pair.
1894 static void check_boundary(Terminal
*term
, int x
, int y
)
1898 /* Validate input coordinates, just in case. */
1899 if (x
== 0 || x
> term
->cols
)
1902 ldata
= scrlineptr(y
);
1903 if (x
== term
->cols
) {
1904 ldata
->lattr
&= ~LATTR_WRAPPED2
;
1906 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
1907 clear_cc(ldata
, x
-1);
1909 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
1910 ldata
->chars
[x
] = ldata
->chars
[x
-1];
1916 * Erase a large portion of the screen: the whole screen, or the
1917 * whole line, or parts thereof.
1919 static void erase_lots(Terminal
*term
,
1920 int line_only
, int from_begin
, int to_end
)
1924 int erasing_lines_from_top
= 0;
1927 start
.y
= term
->curs
.y
;
1929 end
.y
= term
->curs
.y
+ 1;
1931 erase_lattr
= FALSE
;
1946 if (!from_begin
|| !to_end
)
1947 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1948 check_selection(term
, start
, end
);
1950 /* Clear screen also forces a full window redraw, just in case. */
1951 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1952 term_invalidate(term
);
1954 /* Lines scrolled away shouldn't be brought back on if the terminal
1956 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
1957 erasing_lines_from_top
= 1;
1959 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
1960 /* If it's a whole number of lines, starting at the top, and
1961 * we're fully erasing them, erase by scrolling and keep the
1962 * lines in the scrollback. */
1963 int scrolllines
= end
.y
;
1964 if (end
.y
== term
->rows
) {
1965 /* Shrink until we find a non-empty row.*/
1966 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1968 if (scrolllines
> 0)
1969 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1971 termline
*ldata
= scrlineptr(start
.y
);
1972 while (poslt(start
, end
)) {
1973 if (start
.x
== term
->cols
) {
1975 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1977 ldata
->lattr
= LATTR_NORM
;
1979 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
1981 if (incpos(start
) && start
.y
< term
->rows
) {
1982 ldata
= scrlineptr(start
.y
);
1987 /* After an erase of lines from the top of the screen, we shouldn't
1988 * bring the lines back again if the terminal enlarges (since the user or
1989 * application has explictly thrown them away). */
1990 if (erasing_lines_from_top
&& !(term
->alt_which
))
1991 term
->tempsblines
= 0;
1995 * Insert or delete characters within the current line. n is +ve if
1996 * insertion is desired, and -ve for deletion.
1998 static void insch(Terminal
*term
, int n
)
2000 int dir
= (n
< 0 ?
-1 : +1);
2005 n
= (n
< 0 ?
-n
: n
);
2006 if (n
> term
->cols
- term
->curs
.x
)
2007 n
= term
->cols
- term
->curs
.x
;
2008 m
= term
->cols
- term
->curs
.x
- n
;
2009 cursplus
.y
= term
->curs
.y
;
2010 cursplus
.x
= term
->curs
.x
+ n
;
2011 check_selection(term
, term
->curs
, cursplus
);
2012 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2014 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2015 ldata
= scrlineptr(term
->curs
.y
);
2017 for (j
= 0; j
< m
; j
++)
2018 move_termchar(ldata
,
2019 ldata
->chars
+ term
->curs
.x
+ j
,
2020 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2022 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2025 move_termchar(ldata
,
2026 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2027 ldata
->chars
+ term
->curs
.x
+ j
);
2029 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2034 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2035 * whether the mode is a DEC private one or a normal one.)
2037 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2039 unsigned long ticks
;
2043 case 1: /* DECCKM: application cursor keys */
2044 term
->app_cursor_keys
= state
;
2046 case 2: /* DECANM: VT52 mode */
2047 term
->vt52_mode
= !state
;
2048 if (term
->vt52_mode
) {
2049 term
->blink_is_real
= FALSE
;
2050 term
->vt52_bold
= FALSE
;
2052 term
->blink_is_real
= term
->cfg
.blinktext
;
2055 case 3: /* DECCOLM: 80/132 columns */
2057 if (!term
->cfg
.no_remote_resize
)
2058 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2059 term
->reset_132
= state
;
2060 term
->alt_t
= term
->marg_t
= 0;
2061 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2062 move(term
, 0, 0, 0);
2063 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2065 case 5: /* DECSCNM: reverse video */
2067 * Toggle reverse video. If we receive an OFF within the
2068 * visual bell timeout period after an ON, we trigger an
2069 * effective visual bell, so that ESC[?5hESC[?5l will
2070 * always be an actually _visible_ visual bell.
2072 ticks
= GETTICKCOUNT();
2073 /* turn off a previous vbell to avoid inconsistencies */
2074 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2075 term
->in_vbell
= FALSE
;
2076 if (term
->rvideo
&& !state
&& /* we're turning it off... */
2077 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
2078 /* If there's no vbell timeout already, or this one lasts
2079 * longer, replace vbell_timeout with ours. */
2080 if (!term
->in_vbell
||
2081 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
2083 term
->vbell_startpoint
= term
->rvbell_startpoint
;
2084 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
2085 } else if (!term
->rvideo
&& state
) {
2086 /* This is an ON, so we notice the time and save it. */
2087 term
->rvbell_startpoint
= ticks
;
2089 term
->rvideo
= state
;
2090 term
->seen_disp_event
= TRUE
;
2094 case 6: /* DECOM: DEC origin mode */
2095 term
->dec_om
= state
;
2097 case 7: /* DECAWM: auto wrap */
2100 case 8: /* DECARM: auto key repeat */
2101 term
->repeat_off
= !state
;
2103 case 10: /* DECEDM: set local edit mode */
2104 term
->term_editing
= state
;
2105 if (term
->ldisc
) /* cause ldisc to notice changes */
2106 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2108 case 25: /* DECTCEM: enable/disable cursor */
2109 compatibility2(OTHER
, VT220
);
2110 term
->cursor_on
= state
;
2111 term
->seen_disp_event
= TRUE
;
2113 case 47: /* alternate screen */
2114 compatibility(OTHER
);
2116 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2119 case 1000: /* xterm mouse 1 */
2120 term
->xterm_mouse
= state ?
1 : 0;
2121 set_raw_mouse_mode(term
->frontend
, state
);
2123 case 1002: /* xterm mouse 2 */
2124 term
->xterm_mouse
= state ?
2 : 0;
2125 set_raw_mouse_mode(term
->frontend
, state
);
2127 case 1047: /* alternate screen */
2128 compatibility(OTHER
);
2130 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2133 case 1048: /* save/restore cursor */
2134 if (!term
->cfg
.no_alt_screen
)
2135 save_cursor(term
, state
);
2136 if (!state
) term
->seen_disp_event
= TRUE
;
2138 case 1049: /* cursor & alternate screen */
2139 if (state
&& !term
->cfg
.no_alt_screen
)
2140 save_cursor(term
, state
);
2141 if (!state
) term
->seen_disp_event
= TRUE
;
2142 compatibility(OTHER
);
2144 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2145 if (!state
&& !term
->cfg
.no_alt_screen
)
2146 save_cursor(term
, state
);
2151 case 4: /* IRM: set insert mode */
2152 compatibility(VT102
);
2153 term
->insert
= state
;
2155 case 12: /* SRM: set echo mode */
2156 term
->term_echoing
= !state
;
2157 if (term
->ldisc
) /* cause ldisc to notice changes */
2158 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2160 case 20: /* LNM: Return sends ... */
2161 term
->cr_lf_return
= state
;
2163 case 34: /* WYULCURM: Make cursor BIG */
2164 compatibility2(OTHER
, VT220
);
2165 term
->big_cursor
= !state
;
2170 * Process an OSC sequence: set window title or icon name.
2172 static void do_osc(Terminal
*term
)
2175 while (term
->osc_strlen
--)
2176 term
->wordness
[(unsigned char)
2177 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2179 term
->osc_string
[term
->osc_strlen
] = '\0';
2180 switch (term
->esc_args
[0]) {
2183 if (!term
->cfg
.no_remote_wintitle
)
2184 set_icon(term
->frontend
, term
->osc_string
);
2185 if (term
->esc_args
[0] == 1)
2187 /* fall through: parameter 0 means set both */
2190 if (!term
->cfg
.no_remote_wintitle
)
2191 set_title(term
->frontend
, term
->osc_string
);
2198 * ANSI printing routines.
2200 static void term_print_setup(Terminal
*term
)
2202 bufchain_clear(&term
->printer_buf
);
2203 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2205 static void term_print_flush(Terminal
*term
)
2210 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2211 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2214 printer_job_data(term
->print_job
, data
, len
);
2215 bufchain_consume(&term
->printer_buf
, len
);
2218 static void term_print_finish(Terminal
*term
)
2224 if (!term
->printing
&& !term
->only_printing
)
2225 return; /* we need do nothing */
2227 term_print_flush(term
);
2228 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2229 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2231 if (c
== '\033' || c
== '\233') {
2232 bufchain_consume(&term
->printer_buf
, size
);
2235 printer_job_data(term
->print_job
, &c
, 1);
2236 bufchain_consume(&term
->printer_buf
, 1);
2239 printer_finish_job(term
->print_job
);
2240 term
->print_job
= NULL
;
2241 term
->printing
= term
->only_printing
= FALSE
;
2245 * Remove everything currently in `inbuf' and stick it up on the
2246 * in-memory display. There's a big state machine in here to
2247 * process escape sequences...
2249 void term_out(Terminal
*term
)
2253 unsigned char localbuf
[256], *chars
;
2258 chars
= NULL
; /* placate compiler warnings */
2259 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
2263 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2264 if (nchars
> sizeof(localbuf
))
2265 nchars
= sizeof(localbuf
);
2266 memcpy(localbuf
, ret
, nchars
);
2267 bufchain_consume(&term
->inbuf
, nchars
);
2269 assert(chars
!= NULL
);
2275 * Optionally log the session traffic to a file. Useful for
2276 * debugging and possibly also useful for actual logging.
2278 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2279 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2285 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2286 * be able to display 8-bit characters, but I'll let that go 'cause
2291 * If we're printing, add the character to the printer
2294 if (term
->printing
) {
2295 bufchain_add(&term
->printer_buf
, &c
, 1);
2298 * If we're in print-only mode, we use a much simpler
2299 * state machine designed only to recognise the ESC[4i
2300 * termination sequence.
2302 if (term
->only_printing
) {
2304 term
->print_state
= 1;
2305 else if (c
== (unsigned char)'\233')
2306 term
->print_state
= 2;
2307 else if (c
== '[' && term
->print_state
== 1)
2308 term
->print_state
= 2;
2309 else if (c
== '4' && term
->print_state
== 2)
2310 term
->print_state
= 3;
2311 else if (c
== 'i' && term
->print_state
== 3)
2312 term
->print_state
= 4;
2314 term
->print_state
= 0;
2315 if (term
->print_state
== 4) {
2316 term_print_finish(term
);
2322 /* First see about all those translations. */
2323 if (term
->termstate
== TOPLEVEL
) {
2325 switch (term
->utf_state
) {
2328 /* UTF-8 must be stateless so we ignore iso2022. */
2329 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2330 c
= term
->ucsdata
->unitab_ctrl
[c
];
2331 else c
= ((unsigned char)c
) | CSET_ASCII
;
2333 } else if ((c
& 0xe0) == 0xc0) {
2334 term
->utf_size
= term
->utf_state
= 1;
2335 term
->utf_char
= (c
& 0x1f);
2336 } else if ((c
& 0xf0) == 0xe0) {
2337 term
->utf_size
= term
->utf_state
= 2;
2338 term
->utf_char
= (c
& 0x0f);
2339 } else if ((c
& 0xf8) == 0xf0) {
2340 term
->utf_size
= term
->utf_state
= 3;
2341 term
->utf_char
= (c
& 0x07);
2342 } else if ((c
& 0xfc) == 0xf8) {
2343 term
->utf_size
= term
->utf_state
= 4;
2344 term
->utf_char
= (c
& 0x03);
2345 } else if ((c
& 0xfe) == 0xfc) {
2346 term
->utf_size
= term
->utf_state
= 5;
2347 term
->utf_char
= (c
& 0x01);
2358 if ((c
& 0xC0) != 0x80) {
2361 term
->utf_state
= 0;
2364 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2365 if (--term
->utf_state
)
2370 /* Is somebody trying to be evil! */
2372 (c
< 0x800 && term
->utf_size
>= 2) ||
2373 (c
< 0x10000 && term
->utf_size
>= 3) ||
2374 (c
< 0x200000 && term
->utf_size
>= 4) ||
2375 (c
< 0x4000000 && term
->utf_size
>= 5))
2378 /* Unicode line separator and paragraph separator are CR-LF */
2379 if (c
== 0x2028 || c
== 0x2029)
2382 /* High controls are probably a Baaad idea too. */
2386 /* The UTF-16 surrogates are not nice either. */
2387 /* The standard give the option of decoding these:
2388 * I don't want to! */
2389 if (c
>= 0xD800 && c
< 0xE000)
2392 /* ISO 10646 characters now limited to UTF-16 range. */
2396 /* This is currently a TagPhobic application.. */
2397 if (c
>= 0xE0000 && c
<= 0xE007F)
2400 /* U+FEFF is best seen as a null. */
2403 /* But U+FFFE is an error. */
2404 if (c
== 0xFFFE || c
== 0xFFFF)
2409 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2410 else if(term
->sco_acs
&&
2411 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2413 if (term
->sco_acs
== 2) c
|= 0x80;
2416 switch (term
->cset_attr
[term
->cset
]) {
2418 * Linedraw characters are different from 'ESC ( B'
2419 * only for a small range. For ones outside that
2420 * range, make sure we use the same font as well as
2421 * the same encoding.
2424 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2425 c
= term
->ucsdata
->unitab_ctrl
[c
];
2427 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2431 /* If UK-ASCII, make the '#' a LineDraw Pound */
2433 c
= '}' | CSET_LINEDRW
;
2436 /*FALLTHROUGH*/ case CSET_ASCII
:
2437 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2438 c
= term
->ucsdata
->unitab_ctrl
[c
];
2440 c
= ((unsigned char) c
) | CSET_ASCII
;
2443 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2449 /* How about C1 controls ? */
2450 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2451 !term
->vt52_mode
&& has_compat(VT220
)) {
2452 term
->termstate
= SEEN_ESC
;
2453 term
->esc_query
= FALSE
;
2454 c
= '@' + (c
& 0x1F);
2457 /* Or the GL control. */
2458 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2459 if (term
->curs
.x
&& !term
->wrapnext
)
2461 term
->wrapnext
= FALSE
;
2462 /* destructive backspace might be disabled */
2463 if (!term
->cfg
.no_dbackspace
) {
2464 copy_termchar(scrlineptr(term
->curs
.y
),
2465 term
->curs
.x
, &term
->erase_char
);
2468 /* Or normal C0 controls. */
2469 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2471 case '\005': /* ENQ: terminal type query */
2472 /* Strictly speaking this is VT100 but a VT100 defaults to
2473 * no response. Other terminals respond at their option.
2475 * Don't put a CR in the default string as this tends to
2476 * upset some weird software.
2478 * An xterm returns "xterm" (5 characters)
2480 compatibility(ANSIMIN
);
2482 char abuf
[256], *s
, *d
;
2484 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
2486 if (*s
>= 'a' && *s
<= 'z')
2487 *d
++ = (*s
- ('a' - 1));
2488 else if ((*s
>= '@' && *s
<= '_') ||
2489 *s
== '?' || (*s
& 0x80))
2494 } else if (*s
== '^') {
2499 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2503 case '\007': /* BEL: Bell */
2505 struct beeptime
*newbeep
;
2506 unsigned long ticks
;
2508 ticks
= GETTICKCOUNT();
2510 if (!term
->beep_overloaded
) {
2511 newbeep
= snew(struct beeptime
);
2512 newbeep
->ticks
= ticks
;
2513 newbeep
->next
= NULL
;
2514 if (!term
->beephead
)
2515 term
->beephead
= newbeep
;
2517 term
->beeptail
->next
= newbeep
;
2518 term
->beeptail
= newbeep
;
2523 * Throw out any beeps that happened more than
2526 while (term
->beephead
&&
2527 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2528 struct beeptime
*tmp
= term
->beephead
;
2529 term
->beephead
= tmp
->next
;
2531 if (!term
->beephead
)
2532 term
->beeptail
= NULL
;
2536 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2537 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2539 * If we're currently overloaded and the
2540 * last beep was more than s seconds ago,
2541 * leave overload mode.
2543 term
->beep_overloaded
= FALSE
;
2544 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2545 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2547 * Now, if we have n or more beeps
2548 * remaining in the queue, go into overload
2551 term
->beep_overloaded
= TRUE
;
2553 term
->lastbeep
= ticks
;
2556 * Perform an actual beep if we're not overloaded.
2558 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2559 beep(term
->frontend
, term
->cfg
.beep
);
2560 if (term
->cfg
.beep
== BELL_VISUAL
) {
2561 term
->in_vbell
= TRUE
;
2562 term
->vbell_startpoint
= ticks
;
2566 term
->seen_disp_event
= TRUE
;
2569 case '\b': /* BS: Back space */
2570 if (term
->curs
.x
== 0 &&
2571 (term
->curs
.y
== 0 || term
->wrap
== 0))
2573 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2574 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2575 else if (term
->wrapnext
)
2576 term
->wrapnext
= FALSE
;
2579 term
->seen_disp_event
= TRUE
;
2581 case '\016': /* LS1: Locking-shift one */
2582 compatibility(VT100
);
2585 case '\017': /* LS0: Locking-shift zero */
2586 compatibility(VT100
);
2589 case '\033': /* ESC: Escape */
2590 if (term
->vt52_mode
)
2591 term
->termstate
= VT52_ESC
;
2593 compatibility(ANSIMIN
);
2594 term
->termstate
= SEEN_ESC
;
2595 term
->esc_query
= FALSE
;
2598 case '\015': /* CR: Carriage return */
2600 term
->wrapnext
= FALSE
;
2601 term
->seen_disp_event
= TRUE
;
2602 term
->paste_hold
= 0;
2604 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2606 case '\014': /* FF: Form feed */
2607 if (has_compat(SCOANSI
)) {
2608 move(term
, 0, 0, 0);
2609 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2611 term
->wrapnext
= FALSE
;
2612 term
->seen_disp_event
= 1;
2615 case '\013': /* VT: Line tabulation */
2616 compatibility(VT100
);
2617 case '\012': /* LF: Line feed */
2618 if (term
->curs
.y
== term
->marg_b
)
2619 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2620 else if (term
->curs
.y
< term
->rows
- 1)
2622 if (term
->cfg
.lfhascr
)
2624 term
->wrapnext
= FALSE
;
2625 term
->seen_disp_event
= 1;
2626 term
->paste_hold
= 0;
2628 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2630 case '\t': /* HT: Character tabulation */
2632 pos old_curs
= term
->curs
;
2633 termline
*ldata
= scrlineptr(term
->curs
.y
);
2637 } while (term
->curs
.x
< term
->cols
- 1 &&
2638 !term
->tabs
[term
->curs
.x
]);
2640 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2641 if (term
->curs
.x
>= term
->cols
/ 2)
2642 term
->curs
.x
= term
->cols
/ 2 - 1;
2644 if (term
->curs
.x
>= term
->cols
)
2645 term
->curs
.x
= term
->cols
- 1;
2648 check_selection(term
, old_curs
, term
->curs
);
2650 term
->seen_disp_event
= TRUE
;
2654 switch (term
->termstate
) {
2656 /* Only graphic characters get this far;
2657 * ctrls are stripped above */
2659 termline
*cline
= scrlineptr(term
->curs
.y
);
2664 width
= wcwidth((wchar_t) c
);
2666 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2667 cline
->lattr
|= LATTR_WRAPPED
;
2668 if (term
->curs
.y
== term
->marg_b
)
2669 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2670 else if (term
->curs
.y
< term
->rows
- 1)
2673 term
->wrapnext
= FALSE
;
2674 cline
= scrlineptr(term
->curs
.y
);
2676 if (term
->insert
&& width
> 0)
2678 if (term
->selstate
!= NO_SELECTION
) {
2679 pos cursplus
= term
->curs
;
2681 check_selection(term
, term
->curs
, cursplus
);
2683 if (((c
& CSET_MASK
) == CSET_ASCII
||
2684 (c
& CSET_MASK
) == 0) &&
2686 logtraffic(term
->logctx
, (unsigned char) c
,
2692 * If we're about to display a double-width
2693 * character starting in the rightmost
2694 * column, then we do something special
2695 * instead. We must print a space in the
2696 * last column of the screen, then wrap;
2697 * and we also set LATTR_WRAPPED2 which
2698 * instructs subsequent cut-and-pasting not
2699 * only to splice this line to the one
2700 * after it, but to ignore the space in the
2701 * last character position as well.
2702 * (Because what was actually output to the
2703 * terminal was presumably just a sequence
2704 * of CJK characters, and we don't want a
2705 * space to be pasted in the middle of
2706 * those just because they had the
2707 * misfortune to start in the wrong parity
2708 * column. xterm concurs.)
2710 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2711 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2712 if (term
->curs
.x
== term
->cols
-1) {
2713 copy_termchar(cline
, term
->curs
.x
,
2715 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2716 if (term
->curs
.y
== term
->marg_b
)
2717 scroll(term
, term
->marg_t
, term
->marg_b
,
2719 else if (term
->curs
.y
< term
->rows
- 1)
2722 /* Now we must check_boundary again, of course. */
2723 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2724 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2728 clear_cc(cline
, term
->curs
.x
);
2729 cline
->chars
[term
->curs
.x
].chr
= c
;
2730 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2735 clear_cc(cline
, term
->curs
.x
);
2736 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2737 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2741 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2742 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2745 clear_cc(cline
, term
->curs
.x
);
2746 cline
->chars
[term
->curs
.x
].chr
= c
;
2747 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2751 if (term
->curs
.x
> 0) {
2752 int x
= term
->curs
.x
- 1;
2754 /* If we're in wrapnext state, the character
2755 * to combine with is _here_, not to our left. */
2760 * If the previous character is
2761 * UCSWIDE, back up another one.
2763 if (cline
->chars
[x
].chr
== UCSWIDE
) {
2768 add_cc(cline
, x
, c
);
2769 term
->seen_disp_event
= 1;
2776 if (term
->curs
.x
== term
->cols
) {
2778 term
->wrapnext
= TRUE
;
2779 if (term
->wrap
&& term
->vt52_mode
) {
2780 cline
->lattr
|= LATTR_WRAPPED
;
2781 if (term
->curs
.y
== term
->marg_b
)
2782 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2783 else if (term
->curs
.y
< term
->rows
- 1)
2786 term
->wrapnext
= FALSE
;
2789 term
->seen_disp_event
= 1;
2795 * This state is virtually identical to SEEN_ESC, with the
2796 * exception that we have an OSC sequence in the pipeline,
2797 * and _if_ we see a backslash, we process it.
2801 term
->termstate
= TOPLEVEL
;
2804 /* else fall through */
2806 if (c
>= ' ' && c
<= '/') {
2807 if (term
->esc_query
)
2808 term
->esc_query
= -1;
2810 term
->esc_query
= c
;
2813 term
->termstate
= TOPLEVEL
;
2814 switch (ANSI(c
, term
->esc_query
)) {
2815 case '[': /* enter CSI mode */
2816 term
->termstate
= SEEN_CSI
;
2817 term
->esc_nargs
= 1;
2818 term
->esc_args
[0] = ARG_DEFAULT
;
2819 term
->esc_query
= FALSE
;
2821 case ']': /* OSC: xterm escape sequences */
2822 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
2823 compatibility(OTHER
);
2824 term
->termstate
= SEEN_OSC
;
2825 term
->esc_args
[0] = 0;
2827 case '7': /* DECSC: save cursor */
2828 compatibility(VT100
);
2829 save_cursor(term
, TRUE
);
2831 case '8': /* DECRC: restore cursor */
2832 compatibility(VT100
);
2833 save_cursor(term
, FALSE
);
2834 term
->seen_disp_event
= TRUE
;
2836 case '=': /* DECKPAM: Keypad application mode */
2837 compatibility(VT100
);
2838 term
->app_keypad_keys
= TRUE
;
2840 case '>': /* DECKPNM: Keypad numeric mode */
2841 compatibility(VT100
);
2842 term
->app_keypad_keys
= FALSE
;
2844 case 'D': /* IND: exactly equivalent to LF */
2845 compatibility(VT100
);
2846 if (term
->curs
.y
== term
->marg_b
)
2847 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2848 else if (term
->curs
.y
< term
->rows
- 1)
2850 term
->wrapnext
= FALSE
;
2851 term
->seen_disp_event
= TRUE
;
2853 case 'E': /* NEL: exactly equivalent to CR-LF */
2854 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 'M': /* RI: reverse index - backwards LF */
2864 compatibility(VT100
);
2865 if (term
->curs
.y
== term
->marg_t
)
2866 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
2867 else if (term
->curs
.y
> 0)
2869 term
->wrapnext
= FALSE
;
2870 term
->seen_disp_event
= TRUE
;
2872 case 'Z': /* DECID: terminal type query */
2873 compatibility(VT100
);
2875 ldisc_send(term
->ldisc
, term
->id_string
,
2876 strlen(term
->id_string
), 0);
2878 case 'c': /* RIS: restore power-on settings */
2879 compatibility(VT100
);
2881 if (term
->ldisc
) /* cause ldisc to notice changes */
2882 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2883 if (term
->reset_132
) {
2884 if (!term
->cfg
.no_remote_resize
)
2885 request_resize(term
->frontend
, 80, term
->rows
);
2886 term
->reset_132
= 0;
2889 term
->seen_disp_event
= TRUE
;
2891 case 'H': /* HTS: set a tab */
2892 compatibility(VT100
);
2893 term
->tabs
[term
->curs
.x
] = TRUE
;
2896 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
2897 compatibility(VT100
);
2903 for (i
= 0; i
< term
->rows
; i
++) {
2904 ldata
= scrlineptr(i
);
2905 for (j
= 0; j
< term
->cols
; j
++) {
2906 copy_termchar(ldata
, j
,
2907 &term
->basic_erase_char
);
2908 ldata
->chars
[j
].chr
= 'E';
2910 ldata
->lattr
= LATTR_NORM
;
2913 term
->seen_disp_event
= TRUE
;
2914 scrtop
.x
= scrtop
.y
= 0;
2916 scrbot
.y
= term
->rows
;
2917 check_selection(term
, scrtop
, scrbot
);
2921 case ANSI('3', '#'):
2922 case ANSI('4', '#'):
2923 case ANSI('5', '#'):
2924 case ANSI('6', '#'):
2925 compatibility(VT100
);
2929 switch (ANSI(c
, term
->esc_query
)) {
2930 case ANSI('3', '#'): /* DECDHL: 2*height, top */
2933 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
2936 case ANSI('5', '#'): /* DECSWL: normal */
2937 nlattr
= LATTR_NORM
;
2939 default: /* case ANSI('6', '#'): DECDWL: 2*width */
2940 nlattr
= LATTR_WIDE
;
2943 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
2946 /* GZD4: G0 designate 94-set */
2947 case ANSI('A', '('):
2948 compatibility(VT100
);
2949 if (!term
->cfg
.no_remote_charset
)
2950 term
->cset_attr
[0] = CSET_GBCHR
;
2952 case ANSI('B', '('):
2953 compatibility(VT100
);
2954 if (!term
->cfg
.no_remote_charset
)
2955 term
->cset_attr
[0] = CSET_ASCII
;
2957 case ANSI('0', '('):
2958 compatibility(VT100
);
2959 if (!term
->cfg
.no_remote_charset
)
2960 term
->cset_attr
[0] = CSET_LINEDRW
;
2962 case ANSI('U', '('):
2963 compatibility(OTHER
);
2964 if (!term
->cfg
.no_remote_charset
)
2965 term
->cset_attr
[0] = CSET_SCOACS
;
2967 /* G1D4: G1-designate 94-set */
2968 case ANSI('A', ')'):
2969 compatibility(VT100
);
2970 if (!term
->cfg
.no_remote_charset
)
2971 term
->cset_attr
[1] = CSET_GBCHR
;
2973 case ANSI('B', ')'):
2974 compatibility(VT100
);
2975 if (!term
->cfg
.no_remote_charset
)
2976 term
->cset_attr
[1] = CSET_ASCII
;
2978 case ANSI('0', ')'):
2979 compatibility(VT100
);
2980 if (!term
->cfg
.no_remote_charset
)
2981 term
->cset_attr
[1] = CSET_LINEDRW
;
2983 case ANSI('U', ')'):
2984 compatibility(OTHER
);
2985 if (!term
->cfg
.no_remote_charset
)
2986 term
->cset_attr
[1] = CSET_SCOACS
;
2988 /* DOCS: Designate other coding system */
2989 case ANSI('8', '%'): /* Old Linux code */
2990 case ANSI('G', '%'):
2991 compatibility(OTHER
);
2992 if (!term
->cfg
.no_remote_charset
)
2995 case ANSI('@', '%'):
2996 compatibility(OTHER
);
2997 if (!term
->cfg
.no_remote_charset
)
3003 term
->termstate
= TOPLEVEL
; /* default */
3005 if (term
->esc_nargs
<= ARGS_MAX
) {
3006 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3007 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3008 term
->esc_args
[term
->esc_nargs
- 1] =
3009 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3011 term
->termstate
= SEEN_CSI
;
3012 } else if (c
== ';') {
3013 if (++term
->esc_nargs
<= ARGS_MAX
)
3014 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
3015 term
->termstate
= SEEN_CSI
;
3016 } else if (c
< '@') {
3017 if (term
->esc_query
)
3018 term
->esc_query
= -1;
3020 term
->esc_query
= TRUE
;
3022 term
->esc_query
= c
;
3023 term
->termstate
= SEEN_CSI
;
3025 switch (ANSI(c
, term
->esc_query
)) {
3026 case 'A': /* CUU: move up N lines */
3027 move(term
, term
->curs
.x
,
3028 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3029 term
->seen_disp_event
= TRUE
;
3031 case 'e': /* VPR: move down N lines */
3032 compatibility(ANSI
);
3034 case 'B': /* CUD: Cursor down */
3035 move(term
, term
->curs
.x
,
3036 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3037 term
->seen_disp_event
= TRUE
;
3039 case ANSI('c', '>'): /* DA: report xterm version */
3040 compatibility(OTHER
);
3041 /* this reports xterm version 136 so that VIM can
3042 use the drag messages from the mouse reporting */
3044 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3046 case 'a': /* HPR: move right N cols */
3047 compatibility(ANSI
);
3049 case 'C': /* CUF: Cursor right */
3050 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3052 term
->seen_disp_event
= TRUE
;
3054 case 'D': /* CUB: move left N cols */
3055 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3057 term
->seen_disp_event
= TRUE
;
3059 case 'E': /* CNL: move down N lines and CR */
3060 compatibility(ANSI
);
3062 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3063 term
->seen_disp_event
= TRUE
;
3065 case 'F': /* CPL: move up N lines and CR */
3066 compatibility(ANSI
);
3068 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3069 term
->seen_disp_event
= TRUE
;
3072 case '`': /* HPA: set horizontal posn */
3073 compatibility(ANSI
);
3074 move(term
, def(term
->esc_args
[0], 1) - 1,
3076 term
->seen_disp_event
= TRUE
;
3078 case 'd': /* VPA: set vertical posn */
3079 compatibility(ANSI
);
3080 move(term
, term
->curs
.x
,
3081 ((term
->dec_om ? term
->marg_t
: 0) +
3082 def(term
->esc_args
[0], 1) - 1),
3083 (term
->dec_om ?
2 : 0));
3084 term
->seen_disp_event
= TRUE
;
3087 case 'f': /* HVP: set horz and vert posns at once */
3088 if (term
->esc_nargs
< 2)
3089 term
->esc_args
[1] = ARG_DEFAULT
;
3090 move(term
, def(term
->esc_args
[1], 1) - 1,
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
;
3096 case 'J': /* ED: erase screen or parts of it */
3098 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3101 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3104 term
->seen_disp_event
= TRUE
;
3106 case 'K': /* EL: erase line or parts of it */
3108 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3111 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3113 term
->seen_disp_event
= TRUE
;
3115 case 'L': /* IL: insert lines */
3116 compatibility(VT102
);
3117 if (term
->curs
.y
<= term
->marg_b
)
3118 scroll(term
, term
->curs
.y
, term
->marg_b
,
3119 -def(term
->esc_args
[0], 1), FALSE
);
3120 term
->seen_disp_event
= TRUE
;
3122 case 'M': /* DL: delete lines */
3123 compatibility(VT102
);
3124 if (term
->curs
.y
<= term
->marg_b
)
3125 scroll(term
, term
->curs
.y
, term
->marg_b
,
3126 def(term
->esc_args
[0], 1),
3128 term
->seen_disp_event
= TRUE
;
3130 case '@': /* ICH: insert chars */
3131 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3132 compatibility(VT102
);
3133 insch(term
, def(term
->esc_args
[0], 1));
3134 term
->seen_disp_event
= TRUE
;
3136 case 'P': /* DCH: delete chars */
3137 compatibility(VT102
);
3138 insch(term
, -def(term
->esc_args
[0], 1));
3139 term
->seen_disp_event
= TRUE
;
3141 case 'c': /* DA: terminal type query */
3142 compatibility(VT100
);
3143 /* This is the response for a VT102 */
3145 ldisc_send(term
->ldisc
, term
->id_string
,
3146 strlen(term
->id_string
), 0);
3148 case 'n': /* DSR: cursor position query */
3150 if (term
->esc_args
[0] == 6) {
3152 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3154 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3155 } else if (term
->esc_args
[0] == 5) {
3156 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3160 case 'h': /* SM: toggle modes to high */
3162 compatibility(VT100
);
3165 for (i
= 0; i
< term
->esc_nargs
; i
++)
3166 toggle_mode(term
, term
->esc_args
[i
],
3167 term
->esc_query
, TRUE
);
3170 case 'i': /* MC: Media copy */
3172 compatibility(VT100
);
3174 if (term
->esc_nargs
!= 1) break;
3175 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3176 term
->printing
= TRUE
;
3177 term
->only_printing
= !term
->esc_query
;
3178 term
->print_state
= 0;
3179 term_print_setup(term
);
3180 } else if (term
->esc_args
[0] == 4 &&
3182 term_print_finish(term
);
3186 case 'l': /* RM: toggle modes to low */
3188 compatibility(VT100
);
3191 for (i
= 0; i
< term
->esc_nargs
; i
++)
3192 toggle_mode(term
, term
->esc_args
[i
],
3193 term
->esc_query
, FALSE
);
3196 case 'g': /* TBC: clear tabs */
3197 compatibility(VT100
);
3198 if (term
->esc_nargs
== 1) {
3199 if (term
->esc_args
[0] == 0) {
3200 term
->tabs
[term
->curs
.x
] = FALSE
;
3201 } else if (term
->esc_args
[0] == 3) {
3203 for (i
= 0; i
< term
->cols
; i
++)
3204 term
->tabs
[i
] = FALSE
;
3208 case 'r': /* DECSTBM: set scroll margins */
3209 compatibility(VT100
);
3210 if (term
->esc_nargs
<= 2) {
3212 top
= def(term
->esc_args
[0], 1) - 1;
3213 bot
= (term
->esc_nargs
<= 1
3214 || term
->esc_args
[1] == 0 ?
3216 def(term
->esc_args
[1], term
->rows
)) - 1;
3217 if (bot
>= term
->rows
)
3218 bot
= term
->rows
- 1;
3219 /* VTTEST Bug 9 - if region is less than 2 lines
3220 * don't change region.
3222 if (bot
- top
> 0) {
3227 * I used to think the cursor should be
3228 * placed at the top of the newly marginned
3229 * area. Apparently not: VMS TPU falls over
3232 * Well actually it should for
3235 term
->curs
.y
= (term
->dec_om ?
3237 term
->seen_disp_event
= TRUE
;
3241 case 'm': /* SGR: set graphics rendition */
3244 * A VT100 without the AVO only had one
3245 * attribute, either underline or
3246 * reverse video depending on the
3247 * cursor type, this was selected by
3251 * This is sometimes DIM, eg on the
3254 * This is sometimes INVIS various ANSI.
3256 * This like 22 disables BOLD, DIM and INVIS
3258 * The ANSI colours appear on any
3259 * terminal that has colour (obviously)
3260 * but the interaction between sgr0 and
3261 * the colours varies but is usually
3262 * related to the background colour
3263 * erase item. The interaction between
3264 * colour attributes and the mono ones
3265 * is also very implementation
3268 * The 39 and 49 attributes are likely
3269 * to be unimplemented.
3272 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3273 switch (def(term
->esc_args
[i
], 0)) {
3274 case 0: /* restore defaults */
3275 term
->curr_attr
= term
->default_attr
;
3277 case 1: /* enable bold */
3278 compatibility(VT100AVO
);
3279 term
->curr_attr
|= ATTR_BOLD
;
3281 case 21: /* (enable double underline) */
3282 compatibility(OTHER
);
3283 case 4: /* enable underline */
3284 compatibility(VT100AVO
);
3285 term
->curr_attr
|= ATTR_UNDER
;
3287 case 5: /* enable blink */
3288 compatibility(VT100AVO
);
3289 term
->curr_attr
|= ATTR_BLINK
;
3291 case 6: /* SCO light bkgrd */
3292 compatibility(SCOANSI
);
3293 term
->blink_is_real
= FALSE
;
3294 term
->curr_attr
|= ATTR_BLINK
;
3296 case 7: /* enable reverse video */
3297 term
->curr_attr
|= ATTR_REVERSE
;
3299 case 10: /* SCO acs off */
3300 compatibility(SCOANSI
);
3301 if (term
->cfg
.no_remote_charset
) break;
3302 term
->sco_acs
= 0; break;
3303 case 11: /* SCO acs on */
3304 compatibility(SCOANSI
);
3305 if (term
->cfg
.no_remote_charset
) break;
3306 term
->sco_acs
= 1; break;
3307 case 12: /* SCO acs on, |0x80 */
3308 compatibility(SCOANSI
);
3309 if (term
->cfg
.no_remote_charset
) break;
3310 term
->sco_acs
= 2; break;
3311 case 22: /* disable bold */
3312 compatibility2(OTHER
, VT220
);
3313 term
->curr_attr
&= ~ATTR_BOLD
;
3315 case 24: /* disable underline */
3316 compatibility2(OTHER
, VT220
);
3317 term
->curr_attr
&= ~ATTR_UNDER
;
3319 case 25: /* disable blink */
3320 compatibility2(OTHER
, VT220
);
3321 term
->curr_attr
&= ~ATTR_BLINK
;
3323 case 27: /* disable reverse video */
3324 compatibility2(OTHER
, VT220
);
3325 term
->curr_attr
&= ~ATTR_REVERSE
;
3336 term
->curr_attr
&= ~ATTR_FGMASK
;
3338 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3348 /* xterm-style bright foreground */
3349 term
->curr_attr
&= ~ATTR_FGMASK
;
3351 ((term
->esc_args
[i
] - 90 + 16)
3354 case 39: /* default-foreground */
3355 term
->curr_attr
&= ~ATTR_FGMASK
;
3356 term
->curr_attr
|= ATTR_DEFFG
;
3367 term
->curr_attr
&= ~ATTR_BGMASK
;
3369 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3379 /* xterm-style bright background */
3380 term
->curr_attr
&= ~ATTR_BGMASK
;
3382 ((term
->esc_args
[i
] - 100 + 16)
3385 case 49: /* default-background */
3386 term
->curr_attr
&= ~ATTR_BGMASK
;
3387 term
->curr_attr
|= ATTR_DEFBG
;
3391 set_erase_char(term
);
3394 case 's': /* save cursor */
3395 save_cursor(term
, TRUE
);
3397 case 'u': /* restore cursor */
3398 save_cursor(term
, FALSE
);
3399 term
->seen_disp_event
= TRUE
;
3401 case 't': /* DECSLPP: set page size - ie window height */
3403 * VT340/VT420 sequence DECSLPP, DEC only allows values
3404 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3405 * illegal values (eg first arg 1..9) for window changing
3408 if (term
->esc_nargs
<= 1
3409 && (term
->esc_args
[0] < 1 ||
3410 term
->esc_args
[0] >= 24)) {
3411 compatibility(VT340TEXT
);
3412 if (!term
->cfg
.no_remote_resize
)
3413 request_resize(term
->frontend
, term
->cols
,
3414 def(term
->esc_args
[0], 24));
3416 } else if (term
->esc_nargs
>= 1 &&
3417 term
->esc_args
[0] >= 1 &&
3418 term
->esc_args
[0] < 24) {
3419 compatibility(OTHER
);
3421 switch (term
->esc_args
[0]) {
3425 set_iconic(term
->frontend
, FALSE
);
3428 set_iconic(term
->frontend
, TRUE
);
3431 if (term
->esc_nargs
>= 3) {
3432 if (!term
->cfg
.no_remote_resize
)
3433 move_window(term
->frontend
,
3434 def(term
->esc_args
[1], 0),
3435 def(term
->esc_args
[2], 0));
3439 /* We should resize the window to a given
3440 * size in pixels here, but currently our
3441 * resizing code isn't healthy enough to
3446 set_zorder(term
->frontend
, TRUE
);
3449 /* move to bottom */
3450 set_zorder(term
->frontend
, FALSE
);
3453 refresh_window(term
->frontend
);
3456 if (term
->esc_nargs
>= 3) {
3457 if (!term
->cfg
.no_remote_resize
)
3458 request_resize(term
->frontend
,
3459 def(term
->esc_args
[2], term
->cfg
.width
),
3460 def(term
->esc_args
[1], term
->cfg
.height
));
3464 if (term
->esc_nargs
>= 2)
3465 set_zoomed(term
->frontend
,
3471 ldisc_send(term
->ldisc
,
3472 is_iconic(term
->frontend
) ?
3473 "\033[1t" : "\033[2t", 4, 0);
3477 get_window_pos(term
->frontend
, &x
, &y
);
3478 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3479 ldisc_send(term
->ldisc
, buf
, len
, 0);
3484 get_window_pixels(term
->frontend
, &x
, &y
);
3485 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3486 ldisc_send(term
->ldisc
, buf
, len
, 0);
3491 len
= sprintf(buf
, "\033[8;%d;%dt",
3492 term
->rows
, term
->cols
);
3493 ldisc_send(term
->ldisc
, buf
, len
, 0);
3498 * Hmmm. Strictly speaking we
3499 * should return `the size of the
3500 * screen in characters', but
3501 * that's not easy: (a) window
3502 * furniture being what it is it's
3503 * hard to compute, and (b) in
3504 * resize-font mode maximising the
3505 * window wouldn't change the
3506 * number of characters. *shrug*. I
3507 * think we'll ignore it for the
3508 * moment and see if anyone
3509 * complains, and then ask them
3510 * what they would like it to do.
3515 !term
->cfg
.no_remote_qtitle
) {
3516 p
= get_window_title(term
->frontend
, TRUE
);
3518 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3519 ldisc_send(term
->ldisc
, p
, len
, 0);
3520 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3525 !term
->cfg
.no_remote_qtitle
) {
3526 p
= get_window_title(term
->frontend
,FALSE
);
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);
3536 case 'S': /* SU: Scroll up */
3537 compatibility(SCOANSI
);
3538 scroll(term
, term
->marg_t
, term
->marg_b
,
3539 def(term
->esc_args
[0], 1), TRUE
);
3540 term
->wrapnext
= FALSE
;
3541 term
->seen_disp_event
= TRUE
;
3543 case 'T': /* SD: Scroll down */
3544 compatibility(SCOANSI
);
3545 scroll(term
, term
->marg_t
, term
->marg_b
,
3546 -def(term
->esc_args
[0], 1), TRUE
);
3547 term
->wrapnext
= FALSE
;
3548 term
->seen_disp_event
= TRUE
;
3550 case ANSI('|', '*'): /* DECSNLS */
3552 * Set number of lines on screen
3553 * VT420 uses VGA like hardware and can
3554 * support any size in reasonable range
3555 * (24..49 AIUI) with no default specified.
3557 compatibility(VT420
);
3558 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3559 if (!term
->cfg
.no_remote_resize
)
3560 request_resize(term
->frontend
, term
->cols
,
3561 def(term
->esc_args
[0],
3566 case ANSI('|', '$'): /* DECSCPP */
3568 * Set number of columns per page
3569 * Docs imply range is only 80 or 132, but
3572 compatibility(VT340TEXT
);
3573 if (term
->esc_nargs
<= 1) {
3574 if (!term
->cfg
.no_remote_resize
)
3575 request_resize(term
->frontend
,
3576 def(term
->esc_args
[0],
3577 term
->cfg
.width
), term
->rows
);
3581 case 'X': /* ECH: write N spaces w/o moving cursor */
3582 /* XXX VTTEST says this is vt220, vt510 manual
3584 compatibility(ANSIMIN
);
3586 int n
= def(term
->esc_args
[0], 1);
3588 int p
= term
->curs
.x
;
3589 termline
*cline
= scrlineptr(term
->curs
.y
);
3591 if (n
> term
->cols
- term
->curs
.x
)
3592 n
= term
->cols
- term
->curs
.x
;
3593 cursplus
= term
->curs
;
3595 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3596 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3597 check_selection(term
, term
->curs
, cursplus
);
3599 copy_termchar(cline
, p
++,
3601 term
->seen_disp_event
= TRUE
;
3604 case 'x': /* DECREQTPARM: report terminal characteristics */
3605 compatibility(VT100
);
3608 int i
= def(term
->esc_args
[0], 0);
3609 if (i
== 0 || i
== 1) {
3610 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3612 ldisc_send(term
->ldisc
, buf
, 20, 0);
3616 case 'Z': /* CBT: BackTab for xterm */
3617 compatibility(OTHER
);
3619 int i
= def(term
->esc_args
[0], 1);
3620 pos old_curs
= term
->curs
;
3622 for(;i
>0 && term
->curs
.x
>0; i
--) {
3625 } while (term
->curs
.x
>0 &&
3626 !term
->tabs
[term
->curs
.x
]);
3628 check_selection(term
, old_curs
, term
->curs
);
3631 case ANSI('c', '='): /* Hide or Show Cursor */
3632 compatibility(SCOANSI
);
3633 switch(term
->esc_args
[0]) {
3634 case 0: /* hide cursor */
3635 term
->cursor_on
= FALSE
;
3637 case 1: /* restore cursor */
3638 term
->big_cursor
= FALSE
;
3639 term
->cursor_on
= TRUE
;
3641 case 2: /* block cursor */
3642 term
->big_cursor
= TRUE
;
3643 term
->cursor_on
= TRUE
;
3647 case ANSI('C', '='):
3649 * set cursor start on scanline esc_args[0] and
3650 * end on scanline esc_args[1].If you set
3651 * the bottom scan line to a value less than
3652 * the top scan line, the cursor will disappear.
3654 compatibility(SCOANSI
);
3655 if (term
->esc_nargs
>= 2) {
3656 if (term
->esc_args
[0] > term
->esc_args
[1])
3657 term
->cursor_on
= FALSE
;
3659 term
->cursor_on
= TRUE
;
3662 case ANSI('D', '='):
3663 compatibility(SCOANSI
);
3664 term
->blink_is_real
= FALSE
;
3665 if (term
->esc_args
[0]>=1)
3666 term
->curr_attr
|= ATTR_BLINK
;
3668 term
->curr_attr
&= ~ATTR_BLINK
;
3670 case ANSI('E', '='):
3671 compatibility(SCOANSI
);
3672 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3674 case ANSI('F', '='): /* set normal foreground */
3675 compatibility(SCOANSI
);
3676 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3678 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3679 ((term
->esc_args
[0] & 0x8) << 1)) <<
3681 term
->curr_attr
&= ~ATTR_FGMASK
;
3682 term
->curr_attr
|= colour
;
3683 term
->default_attr
&= ~ATTR_FGMASK
;
3684 term
->default_attr
|= colour
;
3687 case ANSI('G', '='): /* set normal background */
3688 compatibility(SCOANSI
);
3689 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3691 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3692 ((term
->esc_args
[0] & 0x8) << 1)) <<
3694 term
->curr_attr
&= ~ATTR_BGMASK
;
3695 term
->curr_attr
|= colour
;
3696 term
->default_attr
&= ~ATTR_BGMASK
;
3697 term
->default_attr
|= colour
;
3700 case ANSI('L', '='):
3701 compatibility(SCOANSI
);
3702 term
->use_bce
= (term
->esc_args
[0] <= 0);
3703 set_erase_char(term
);
3705 case ANSI('p', '"'): /* DECSCL: set compat level */
3707 * Allow the host to make this emulator a
3708 * 'perfect' VT102. This first appeared in
3709 * the VT220, but we do need to get back to
3710 * PuTTY mode so I won't check it.
3712 * The arg in 40..42,50 are a PuTTY extension.
3713 * The 2nd arg, 8bit vs 7bit is not checked.
3715 * Setting VT102 mode should also change
3716 * the Fkeys to generate PF* codes as a
3717 * real VT102 has no Fkeys. The VT220 does
3718 * this, F11..F13 become ESC,BS,LF other
3719 * Fkeys send nothing.
3721 * Note ESC c will NOT change this!
3724 switch (term
->esc_args
[0]) {
3726 term
->compatibility_level
&= ~TM_VTXXX
;
3727 term
->compatibility_level
|= TM_VT102
;
3730 term
->compatibility_level
&= ~TM_VTXXX
;
3731 term
->compatibility_level
|= TM_VT220
;
3735 if (term
->esc_args
[0] > 60 &&
3736 term
->esc_args
[0] < 70)
3737 term
->compatibility_level
|= TM_VTXXX
;
3741 term
->compatibility_level
&= TM_VTXXX
;
3744 term
->compatibility_level
= TM_PUTTY
;
3747 term
->compatibility_level
= TM_SCOANSI
;
3751 term
->compatibility_level
= TM_PUTTY
;
3757 /* Change the response to CSI c */
3758 if (term
->esc_args
[0] == 50) {
3761 strcpy(term
->id_string
, "\033[?");
3762 for (i
= 1; i
< term
->esc_nargs
; i
++) {
3764 strcat(term
->id_string
, ";");
3765 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
3766 strcat(term
->id_string
, lbuf
);
3768 strcat(term
->id_string
, "c");
3771 /* Is this a good idea ?
3772 * Well we should do a soft reset at this point ...
3774 if (!has_compat(VT420
) && has_compat(VT100
)) {
3775 if (!term
->cfg
.no_remote_resize
) {
3776 if (term
->reset_132
)
3777 request_resize(132, 24);
3779 request_resize(80, 24);
3787 term
->osc_w
= FALSE
;
3789 case 'P': /* Linux palette sequence */
3790 term
->termstate
= SEEN_OSC_P
;
3791 term
->osc_strlen
= 0;
3793 case 'R': /* Linux palette reset */
3794 palette_reset(term
->frontend
);
3795 term_invalidate(term
);
3796 term
->termstate
= TOPLEVEL
;
3798 case 'W': /* word-set */
3799 term
->termstate
= SEEN_OSC_W
;
3812 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3816 * Grotty hack to support xterm and DECterm title
3817 * sequences concurrently.
3819 if (term
->esc_args
[0] == 2) {
3820 term
->esc_args
[0] = 1;
3823 /* else fall through */
3825 term
->termstate
= OSC_STRING
;
3826 term
->osc_strlen
= 0;
3831 * This OSC stuff is EVIL. It takes just one character to get into
3832 * sysline mode and it's not initially obvious how to get out.
3833 * So I've added CR and LF as string aborts.
3834 * This shouldn't effect compatibility as I believe embedded
3835 * control characters are supposed to be interpreted (maybe?)
3836 * and they don't display anything useful anyway.
3840 if (c
== '\012' || c
== '\015') {
3841 term
->termstate
= TOPLEVEL
;
3842 } else if (c
== 0234 || c
== '\007') {
3844 * These characters terminate the string; ST and BEL
3845 * terminate the sequence and trigger instant
3846 * processing of it, whereas ESC goes back to SEEN_ESC
3847 * mode unless it is followed by \, in which case it is
3848 * synonymous with ST in the first place.
3851 term
->termstate
= TOPLEVEL
;
3852 } else if (c
== '\033')
3853 term
->termstate
= OSC_MAYBE_ST
;
3854 else if (term
->osc_strlen
< OSC_STR_MAX
)
3855 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
3859 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
3861 if ((int)c
>= '0' && (int)c
<= '9')
3863 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
3865 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
3868 term
->termstate
= TOPLEVEL
;
3871 term
->osc_string
[term
->osc_strlen
++] = val
;
3872 if (term
->osc_strlen
>= 7) {
3873 palette_set(term
->frontend
, term
->osc_string
[0],
3874 term
->osc_string
[1] * 16 + term
->osc_string
[2],
3875 term
->osc_string
[3] * 16 + term
->osc_string
[4],
3876 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
3877 term_invalidate(term
);
3878 term
->termstate
= TOPLEVEL
;
3894 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3897 term
->termstate
= OSC_STRING
;
3898 term
->osc_strlen
= 0;
3902 term
->termstate
= TOPLEVEL
;
3903 term
->seen_disp_event
= TRUE
;
3906 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
3909 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
3912 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
3915 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
3918 * From the VT100 Manual
3919 * NOTE: The special graphics characters in the VT100
3920 * are different from those in the VT52
3922 * From VT102 manual:
3923 * 137 _ Blank - Same
3924 * 140 ` Reserved - Humm.
3925 * 141 a Solid rectangle - Similar
3926 * 142 b 1/ - Top half of fraction for the
3927 * 143 c 3/ - subscript numbers below.
3930 * 146 f Degrees - Same
3931 * 147 g Plus or minus - Same
3933 * 151 i Ellipsis (dots)
3936 * 154 l Bar at scan 0
3937 * 155 m Bar at scan 1
3938 * 156 n Bar at scan 2
3939 * 157 o Bar at scan 3 - Similar
3940 * 160 p Bar at scan 4 - Similar
3941 * 161 q Bar at scan 5 - Similar
3942 * 162 r Bar at scan 6 - Same
3943 * 163 s Bar at scan 7 - Similar
3958 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
3961 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
3964 move(term
, 0, 0, 0);
3967 if (term
->curs
.y
== 0)
3968 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
3969 else if (term
->curs
.y
> 0)
3971 term
->wrapnext
= FALSE
;
3974 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3978 erase_lots(term
, TRUE
, FALSE
, TRUE
);
3982 /* XXX Print cursor line */
3985 /* XXX Start controller mode */
3988 /* XXX Stop controller mode */
3992 term
->termstate
= VT52_Y1
;
3996 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
3999 term
->app_keypad_keys
= TRUE
;
4002 term
->app_keypad_keys
= FALSE
;
4005 /* XXX This should switch to VT100 mode not current or default
4006 * VT mode. But this will only have effect in a VT220+
4009 term
->vt52_mode
= FALSE
;
4010 term
->blink_is_real
= term
->cfg
.blinktext
;
4014 /* XXX Enter auto print mode */
4017 /* XXX Exit auto print mode */
4020 /* XXX Print screen */
4026 /* compatibility(ATARI) */
4027 move(term
, 0, 0, 0);
4028 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4032 /* compatibility(ATARI) */
4033 if (term
->curs
.y
<= term
->marg_b
)
4034 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4037 /* compatibility(ATARI) */
4038 if (term
->curs
.y
<= term
->marg_b
)
4039 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4042 /* compatibility(ATARI) */
4043 term
->termstate
= VT52_FG
;
4046 /* compatibility(ATARI) */
4047 term
->termstate
= VT52_BG
;
4050 /* compatibility(ATARI) */
4051 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4055 /* compatibility(ATARI) */
4056 term
->cursor_on
= TRUE
;
4059 /* compatibility(ATARI) */
4060 term
->cursor_on
= FALSE
;
4062 /* case 'j': Save cursor position - broken on ST */
4063 /* case 'k': Restore cursor position */
4065 /* compatibility(ATARI) */
4066 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4068 term
->wrapnext
= FALSE
;
4071 /* compatibility(ATARI) */
4072 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4075 /* compatibility(ATARI) */
4076 term
->curr_attr
|= ATTR_REVERSE
;
4079 /* compatibility(ATARI) */
4080 term
->curr_attr
&= ~ATTR_REVERSE
;
4082 case 'v': /* wrap Autowrap on - Wyse style */
4083 /* compatibility(ATARI) */
4086 case 'w': /* Autowrap off */
4087 /* compatibility(ATARI) */
4092 /* compatibility(OTHER) */
4093 term
->vt52_bold
= FALSE
;
4094 term
->curr_attr
= ATTR_DEFAULT
;
4095 set_erase_char(term
);
4098 /* compatibility(VI50) */
4099 term
->curr_attr
|= ATTR_UNDER
;
4102 /* compatibility(VI50) */
4103 term
->curr_attr
&= ~ATTR_UNDER
;
4106 /* compatibility(VI50) */
4107 term
->vt52_bold
= TRUE
;
4108 term
->curr_attr
|= ATTR_BOLD
;
4111 /* compatibility(VI50) */
4112 term
->vt52_bold
= FALSE
;
4113 term
->curr_attr
&= ~ATTR_BOLD
;
4119 term
->termstate
= VT52_Y2
;
4120 move(term
, term
->curs
.x
, c
- ' ', 0);
4123 term
->termstate
= TOPLEVEL
;
4124 move(term
, c
- ' ', term
->curs
.y
, 0);
4129 term
->termstate
= TOPLEVEL
;
4130 term
->curr_attr
&= ~ATTR_FGMASK
;
4131 term
->curr_attr
&= ~ATTR_BOLD
;
4132 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
4133 if ((c
& 0x8) || term
->vt52_bold
)
4134 term
->curr_attr
|= ATTR_BOLD
;
4136 set_erase_char(term
);
4139 term
->termstate
= TOPLEVEL
;
4140 term
->curr_attr
&= ~ATTR_BGMASK
;
4141 term
->curr_attr
&= ~ATTR_BLINK
;
4142 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
4144 /* Note: bold background */
4146 term
->curr_attr
|= ATTR_BLINK
;
4148 set_erase_char(term
);
4151 default: break; /* placate gcc warning about enum use */
4153 if (term
->selstate
!= NO_SELECTION
) {
4154 pos cursplus
= term
->curs
;
4156 check_selection(term
, term
->curs
, cursplus
);
4160 term_print_flush(term
);
4161 logflush(term
->logctx
);
4165 * To prevent having to run the reasonably tricky bidi algorithm
4166 * too many times, we maintain a cache of the last lineful of data
4167 * fed to the algorithm on each line of the display.
4169 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4170 termchar
*lbefore
, int width
)
4174 if (!term
->pre_bidi_cache
)
4175 return FALSE
; /* cache doesn't even exist yet! */
4177 if (line
>= term
->bidi_cache_size
)
4178 return FALSE
; /* cache doesn't have this many lines */
4180 if (!term
->pre_bidi_cache
[line
].chars
)
4181 return FALSE
; /* cache doesn't contain _this_ line */
4183 if (term
->pre_bidi_cache
[line
].width
!= width
)
4184 return FALSE
; /* line is wrong width */
4186 for (i
= 0; i
< width
; i
++)
4187 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4188 return FALSE
; /* line doesn't match cache */
4190 return TRUE
; /* it didn't match. */
4193 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4194 termchar
*lafter
, int width
)
4196 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4197 int j
= term
->bidi_cache_size
;
4198 term
->bidi_cache_size
= line
+1;
4199 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4200 term
->bidi_cache_size
,
4201 struct bidi_cache_entry
);
4202 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4203 term
->bidi_cache_size
,
4204 struct bidi_cache_entry
);
4205 while (j
< term
->bidi_cache_size
) {
4206 term
->pre_bidi_cache
[j
].chars
=
4207 term
->post_bidi_cache
[j
].chars
= NULL
;
4208 term
->pre_bidi_cache
[j
].width
=
4209 term
->post_bidi_cache
[j
].width
= -1;
4214 sfree(term
->pre_bidi_cache
[line
].chars
);
4215 sfree(term
->post_bidi_cache
[line
].chars
);
4217 term
->pre_bidi_cache
[line
].width
= width
;
4218 term
->pre_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4219 term
->post_bidi_cache
[line
].width
= width
;
4220 term
->post_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4222 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, width
* TSIZE
);
4223 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, width
* TSIZE
);
4227 * Given a context, update the window. Out of paranoia, we don't
4228 * allow WM_PAINT responses to do scrolling optimisations.
4230 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4232 int i
, it
, j
, our_curs_y
, our_curs_x
;
4237 termchar cursor_background
;
4238 unsigned long ticks
;
4239 #ifdef OPTIMISE_SCROLL
4240 struct scrollregion
*sr
;
4241 #endif /* OPTIMISE_SCROLL */
4243 cursor_background
= term
->basic_erase_char
;
4246 ch
= snewn(chlen
, wchar_t);
4249 * Check the visual bell state.
4251 if (term
->in_vbell
) {
4252 ticks
= GETTICKCOUNT();
4253 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
4254 term
->in_vbell
= FALSE
;
4257 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4260 * screen array, disptop, scrtop,
4262 * cfg.blinkpc, blink_is_real, tblinker,
4263 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4266 /* Has the cursor position or type changed ? */
4267 if (term
->cursor_on
) {
4268 if (term
->has_focus
) {
4269 if (term
->blinker
|| !term
->cfg
.blink_cur
)
4270 cursor
= TATTR_ACTCURS
;
4274 cursor
= TATTR_PASCURS
;
4276 cursor
|= TATTR_RIGHTCURS
;
4279 our_curs_y
= term
->curs
.y
- term
->disptop
;
4282 * Adjust the cursor position in the case where it's
4283 * resting on the right-hand half of a CJK wide character.
4284 * xterm's behaviour here, which seems adequate to me, is
4285 * to display the cursor covering the _whole_ character,
4286 * exactly as if it were one space to the left.
4288 termline
*ldata
= lineptr(term
->curs
.y
);
4289 our_curs_x
= term
->curs
.x
;
4290 if (our_curs_x
> 0 &&
4291 ldata
->chars
[our_curs_x
].chr
== UCSWIDE
)
4297 * If the cursor is not where it was last time we painted, and
4298 * its previous position is visible on screen, invalidate its
4299 * previous position.
4301 if (term
->dispcursy
>= 0 &&
4302 (term
->curstype
!= cursor
||
4303 term
->dispcursy
!= our_curs_y
||
4304 term
->dispcursx
!= our_curs_x
)) {
4305 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4308 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4309 dispcurs
[-1].attr
|= ATTR_INVALID
;
4310 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4311 dispcurs
[1].attr
|= ATTR_INVALID
;
4312 dispcurs
->attr
|= ATTR_INVALID
;
4316 term
->dispcursx
= term
->dispcursy
= -1;
4318 #ifdef OPTIMISE_SCROLL
4320 sr
= term
->scrollhead
;
4322 struct scrollregion
*next
= sr
->next
;
4323 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4327 term
->scrollhead
= term
->scrolltail
= NULL
;
4328 #endif /* OPTIMISE_SCROLL */
4330 /* The normal screen data */
4331 for (i
= 0; i
< term
->rows
; i
++) {
4334 int dirty_line
, dirty_run
, selected
;
4335 unsigned long attr
= 0, cset
= 0;
4336 int updated_line
= 0;
4339 int last_run_dirty
= 0;
4341 scrpos
.y
= i
+ term
->disptop
;
4342 ldata
= lineptr(scrpos
.y
);
4344 dirty_run
= dirty_line
= (ldata
->lattr
!=
4345 term
->disptext
[i
]->lattr
);
4346 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4348 /* Do Arabic shaping and bidi. */
4349 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4351 if (!term_bidi_cache_hit(term
, i
, ldata
->chars
, term
->cols
)) {
4353 if (term
->wcFromTo_size
< term
->cols
) {
4354 term
->wcFromTo_size
= term
->cols
;
4355 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4357 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4361 for(it
=0; it
<term
->cols
; it
++)
4363 unsigned long uc
= (ldata
->chars
[it
].chr
);
4365 switch (uc
& CSET_MASK
) {
4367 if (!term
->cfg
.rawcnp
) {
4368 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4372 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4375 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4378 switch (uc
& CSET_MASK
) {
4380 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4383 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4387 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4389 term
->wcFrom
[it
].index
= it
;
4393 do_bidi(term
->wcFrom
, term
->cols
);
4395 /* this is saved iff done from inside the shaping */
4396 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4397 for(it
=0; it
<term
->cols
; it
++)
4398 term
->wcTo
[it
] = term
->wcFrom
[it
];
4400 if(!term
->cfg
.arabicshaping
)
4401 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4403 if (term
->ltemp_size
< ldata
->size
) {
4404 term
->ltemp_size
= ldata
->size
;
4405 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4409 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4411 for(it
=0; it
<term
->cols
; it
++)
4413 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4414 if (term
->ltemp
[it
].cc_next
)
4415 term
->ltemp
[it
].cc_next
-=
4416 it
- term
->wcTo
[it
].index
;
4418 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4419 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4421 term_bidi_cache_store(term
, i
, ldata
->chars
,
4422 term
->ltemp
, ldata
->size
);
4424 lchars
= term
->ltemp
;
4426 lchars
= term
->post_bidi_cache
[i
].chars
;
4429 lchars
= ldata
->chars
;
4431 for (j
= 0; j
< term
->cols
; j
++) {
4432 unsigned long tattr
, tchar
;
4433 termchar
*d
= lchars
+ j
;
4434 int break_run
, do_copy
;
4440 switch (tchar
& CSET_MASK
) {
4442 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4445 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4448 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4451 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4454 /* Video reversing things */
4455 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4456 if (term
->seltype
== LEXICOGRAPHIC
)
4457 selected
= (posle(term
->selstart
, scrpos
) &&
4458 poslt(scrpos
, term
->selend
));
4460 selected
= (posPle(term
->selstart
, scrpos
) &&
4461 posPlt(scrpos
, term
->selend
));
4465 ^ (selected ? ATTR_REVERSE
: 0));
4467 /* 'Real' blinking ? */
4468 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4469 if (term
->has_focus
&& term
->tblinker
) {
4470 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4472 tattr
&= ~ATTR_BLINK
;
4476 * Check the font we'll _probably_ be using to see if
4477 * the character is wide when we don't want it to be.
4479 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4480 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4482 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4483 tattr
|= ATTR_NARROW
;
4484 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4485 tattr
|= ATTR_NARROW
;
4487 /* Cursor here ? Save the 'background' */
4488 if (i
== our_curs_y
&& j
== our_curs_x
) {
4490 cursor_background
.chr
= tchar
;
4491 cursor_background
.attr
= tattr
;
4492 /* For once, this cc_next field is an absolute index in lchars */
4494 cursor_background
.cc_next
= d
->cc_next
+ j
;
4496 cursor_background
.cc_next
= 0;
4497 term
->dispcursx
= j
;
4498 term
->dispcursy
= i
;
4501 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4504 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4506 /* Special hack for VT100 Linedraw glyphs */
4507 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4511 * Separate out sequences of characters that have the
4512 * same CSET, if that CSET is a magic one.
4514 if (CSET_OF(tchar
) != cset
)
4518 * Break on both sides of any combined-character cell.
4520 if (d
->cc_next
!= 0 ||
4521 (j
> 0 && d
[-1].cc_next
!= 0))
4524 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4525 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4526 term
->disptext
[i
]->chars
[j
].attr
== tattr
)
4528 else if (!dirty_run
&& ccount
== 1)
4533 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4534 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4540 cset
= CSET_OF(tchar
);
4541 if (term
->ucsdata
->dbcs_screenfont
)
4542 last_run_dirty
= dirty_run
;
4543 dirty_run
= dirty_line
;
4547 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4553 if (ccount
>= chlen
) {
4554 chlen
= ccount
+ 256;
4555 ch
= sresize(ch
, chlen
, wchar_t);
4557 ch
[ccount
++] = (wchar_t) tchar
;
4562 while (dd
->cc_next
) {
4563 unsigned long schar
;
4568 switch (schar
& CSET_MASK
) {
4570 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4573 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4576 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4580 if (ccount
>= chlen
) {
4581 chlen
= ccount
+ 256;
4582 ch
= sresize(ch
, chlen
, wchar_t);
4584 ch
[ccount
++] = (wchar_t) schar
;
4587 attr
|= TATTR_COMBINING
;
4591 copy_termchar(term
->disptext
[i
], j
, d
);
4592 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
4593 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
4596 /* If it's a wide char step along to the next one. */
4597 if (tattr
& ATTR_WIDE
) {
4598 if (++j
< term
->cols
) {
4601 * By construction above, the cursor should not
4602 * be on the right-hand half of this character.
4605 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
4606 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
4608 copy_termchar(term
->disptext
[i
], j
, d
);
4612 if (dirty_run
&& ccount
> 0) {
4613 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4617 /* Cursor on this line ? (and changed) */
4618 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
4619 ch
[0] = (wchar_t) cursor_background
.chr
;
4620 attr
= cursor_background
.attr
| cursor
;
4623 if (cursor_background
.cc_next
) {
4624 termchar
*dd
= ldata
->chars
+ cursor_background
.cc_next
;
4627 unsigned long schar
;
4630 switch (schar
& CSET_MASK
) {
4632 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4635 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4638 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4642 if (ccount
>= chlen
) {
4643 chlen
= ccount
+ 256;
4644 ch
= sresize(ch
, chlen
, wchar_t);
4646 ch
[ccount
++] = (wchar_t) schar
;
4654 attr
|= TATTR_COMBINING
;
4657 do_cursor(ctx
, our_curs_x
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4658 term
->curstype
= cursor
;
4668 * Flick the switch that says if blinking things should be shown or hidden.
4671 void term_blink(Terminal
*term
, int flg
)
4673 long now
, blink_diff
;
4675 now
= GETTICKCOUNT();
4676 blink_diff
= now
- term
->last_tblink
;
4678 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
4679 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
4680 term
->last_tblink
= now
;
4681 term
->tblinker
= !term
->tblinker
;
4686 term
->last_blink
= now
;
4690 blink_diff
= now
- term
->last_blink
;
4692 /* Make sure the cursor blinks no faster than system blink rate */
4693 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
4696 term
->last_blink
= now
;
4697 term
->blinker
= !term
->blinker
;
4701 * Invalidate the whole screen so it will be repainted in full.
4703 void term_invalidate(Terminal
*term
)
4707 for (i
= 0; i
< term
->rows
; i
++)
4708 for (j
= 0; j
< term
->cols
; j
++)
4709 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4713 * Paint the window in response to a WM_PAINT message.
4715 void term_paint(Terminal
*term
, Context ctx
,
4716 int left
, int top
, int right
, int bottom
, int immediately
)
4719 if (left
< 0) left
= 0;
4720 if (top
< 0) top
= 0;
4721 if (right
>= term
->cols
) right
= term
->cols
-1;
4722 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
4724 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
4725 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
4726 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
4727 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4729 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
4730 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4733 /* This should happen soon enough, also for some reason it sometimes
4734 * fails to actually do anything when re-sizing ... painting the wrong
4738 do_paint (term
, ctx
, FALSE
);
4742 * Attempt to scroll the scrollback. The second parameter gives the
4743 * position we want to scroll to; the first is +1 to denote that
4744 * this position is relative to the beginning of the scrollback, -1
4745 * to denote it is relative to the end, and 0 to denote that it is
4746 * relative to the current position.
4748 void term_scroll(Terminal
*term
, int rel
, int where
)
4750 int sbtop
= -sblines(term
);
4751 #ifdef OPTIMISE_SCROLL
4752 int olddisptop
= term
->disptop
;
4754 #endif /* OPTIMISE_SCROLL */
4756 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
4757 if (term
->disptop
< sbtop
)
4758 term
->disptop
= sbtop
;
4759 if (term
->disptop
> 0)
4762 #ifdef OPTIMISE_SCROLL
4763 shift
= (term
->disptop
- olddisptop
);
4764 if (shift
< term
->rows
&& shift
> -term
->rows
)
4765 scroll_display(term
, 0, term
->rows
- 1, shift
);
4766 #endif /* OPTIMISE_SCROLL */
4770 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
4773 wchar_t *wbptr
; /* where next char goes within workbuf */
4775 int wblen
= 0; /* workbuf len */
4776 int buflen
; /* amount of memory allocated to workbuf */
4778 buflen
= 5120; /* Default size */
4779 workbuf
= snewn(buflen
, wchar_t);
4780 wbptr
= workbuf
; /* start filling here */
4781 old_top_x
= top
.x
; /* needed for rect==1 */
4783 while (poslt(top
, bottom
)) {
4785 termline
*ldata
= lineptr(top
.y
);
4789 * nlpos will point at the maximum position on this line we
4790 * should copy up to. So we start it at the end of the
4794 nlpos
.x
= term
->cols
;
4797 * ... move it backwards if there's unused space at the end
4798 * of the line (and also set `nl' if this is the case,
4799 * because in normal selection mode this means we need a
4800 * newline at the end)...
4802 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
4803 while (IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
4806 if (poslt(nlpos
, bottom
))
4808 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
4809 /* Ignore the last char on the line in a WRAPPED2 line. */
4814 * ... and then clip it to the terminal x coordinate if
4815 * we're doing rectangular selection. (In this case we
4816 * still did the above, so that copying e.g. the right-hand
4817 * column from a table doesn't fill with spaces on the
4821 if (nlpos
.x
> bottom
.x
)
4823 nl
= (top
.y
< bottom
.y
);
4826 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
4829 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
4831 wchar_t cbuf
[16], *p
;
4835 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
4841 int uc
= ldata
->chars
[x
].chr
;
4843 switch (uc
& CSET_MASK
) {
4845 if (!term
->cfg
.rawcnp
) {
4846 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4850 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4853 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4856 switch (uc
& CSET_MASK
) {
4858 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4861 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4865 set
= (uc
& CSET_MASK
);
4866 c
= (uc
& ~CSET_MASK
);
4870 if (DIRECT_FONT(uc
)) {
4871 if (c
>= ' ' && c
!= 0x7F) {
4875 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
4877 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
4878 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
4882 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
4886 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
4893 for (p
= cbuf
; *p
; p
++) {
4894 /* Enough overhead for trailing NL and nul */
4895 if (wblen
>= buflen
- 16) {
4897 workbuf
= sresize(workbuf
, buflen
, wchar_t);
4898 wbptr
= workbuf
+ wblen
;
4904 if (ldata
->chars
[x
].cc_next
)
4905 x
+= ldata
->chars
[x
].cc_next
;
4913 for (i
= 0; i
< sel_nl_sz
; i
++) {
4915 *wbptr
++ = sel_nl
[i
];
4919 top
.x
= rect ? old_top_x
: 0;
4923 #if SELECTION_NUL_TERMINATED
4927 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
4928 if (buflen
> 0) /* indicates we allocated this buffer */
4932 void term_copyall(Terminal
*term
)
4936 tree234
*screen
= term
->screen
;
4937 top
.y
= -sblines(term
);
4939 bottom
.y
= find_last_nonempty_line(term
, screen
);
4940 bottom
.x
= term
->cols
;
4941 clipme(term
, top
, bottom
, 0, TRUE
);
4945 * The wordness array is mainly for deciding the disposition of the
4946 * US-ASCII characters.
4948 static int wordtype(Terminal
*term
, int uc
)
4951 int start
, end
, ctype
;
4953 static const struct ucsword ucs_words
[] = {
4959 0x037e, 0x037e, 1}, /* Greek question mark */
4961 0x0387, 0x0387, 1}, /* Greek ano teleia */
4963 0x055a, 0x055f, 1}, /* Armenian punctuation */
4965 0x0589, 0x0589, 1}, /* Armenian full stop */
4967 0x0700, 0x070d, 1}, /* Syriac punctuation */
4969 0x104a, 0x104f, 1}, /* Myanmar punctuation */
4971 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
4973 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
4975 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
4977 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
4979 0x1800, 0x180a, 1}, /* Mongolian punctuation */
4981 0x2000, 0x200a, 0}, /* Various spaces */
4983 0x2070, 0x207f, 2}, /* superscript */
4985 0x2080, 0x208f, 2}, /* subscript */
4987 0x200b, 0x27ff, 1}, /* punctuation and symbols */
4989 0x3000, 0x3000, 0}, /* ideographic space */
4991 0x3001, 0x3020, 1}, /* ideographic punctuation */
4993 0x303f, 0x309f, 3}, /* Hiragana */
4995 0x30a0, 0x30ff, 3}, /* Katakana */
4997 0x3300, 0x9fff, 3}, /* CJK Ideographs */
4999 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5001 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5003 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5005 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5007 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5009 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5011 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5013 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5017 const struct ucsword
*wptr
;
5019 switch (uc
& CSET_MASK
) {
5021 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5024 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5027 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5030 switch (uc
& CSET_MASK
) {
5032 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5035 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5039 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5040 * fail as there's such a thing as a double width space. :-(
5042 if (term
->ucsdata
->dbcs_screenfont
&&
5043 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5047 return term
->wordness
[uc
];
5049 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5050 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5058 * Spread the selection outwards according to the selection mode.
5060 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5064 int topy
= -sblines(term
);
5066 ldata
= lineptr(p
.y
);
5068 switch (term
->selmode
) {
5071 * In this mode, every character is a separate unit, except
5072 * for runs of spaces at the end of a non-wrapping line.
5074 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5075 termchar
*q
= ldata
->chars
+ term
->cols
;
5076 while (q
> ldata
->chars
&& IS_SPACE_CHR(q
[-1].chr
))
5078 if (q
== ldata
->chars
+ term
->cols
)
5080 if (p
.x
>= q
- ldata
->chars
)
5081 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5086 * In this mode, the units are maximal runs of characters
5087 * whose `wordness' has the same value.
5089 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5092 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5093 term
->cols
-1 : term
->cols
);
5094 if (p
.x
< maxcols
-1) {
5095 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5100 if (ldata
->lattr
& LATTR_WRAPPED
) {
5102 ldata2
= lineptr(p
.y
+1);
5103 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5120 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5129 ldata2
= lineptr(p
.y
-1);
5130 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5131 term
->cols
-1 : term
->cols
);
5132 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5133 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5151 * In this mode, every line is a unit.
5153 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5161 static void sel_spread(Terminal
*term
)
5163 if (term
->seltype
== LEXICOGRAPHIC
) {
5164 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5165 decpos(term
->selend
);
5166 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5167 incpos(term
->selend
);
5171 void term_do_paste(Terminal
*term
)
5176 get_clip(term
->frontend
, &data
, &len
);
5177 if (data
&& len
> 0) {
5180 term_seen_key_event(term
); /* pasted data counts */
5182 if (term
->paste_buffer
)
5183 sfree(term
->paste_buffer
);
5184 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5185 term
->paste_buffer
= snewn(len
, wchar_t);
5188 while (p
< data
+ len
) {
5189 while (p
< data
+ len
&&
5190 !(p
<= data
+ len
- sel_nl_sz
&&
5191 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5196 for (i
= 0; i
< p
- q
; i
++) {
5197 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5201 if (p
<= data
+ len
- sel_nl_sz
&&
5202 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5203 term
->paste_buffer
[term
->paste_len
++] = '\015';
5209 /* Assume a small paste will be OK in one go. */
5210 if (term
->paste_len
< 256) {
5212 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5213 if (term
->paste_buffer
)
5214 sfree(term
->paste_buffer
);
5215 term
->paste_buffer
= 0;
5216 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5219 get_clip(term
->frontend
, NULL
, NULL
);
5222 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5223 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5227 int raw_mouse
= (term
->xterm_mouse
&&
5228 !term
->cfg
.no_mouse_rep
&&
5229 !(term
->cfg
.mouse_override
&& shift
));
5230 int default_seltype
;
5234 if (a
== MA_DRAG
&& !raw_mouse
)
5235 term_scroll(term
, 0, -1);
5237 if (y
>= term
->rows
) {
5239 if (a
== MA_DRAG
&& !raw_mouse
)
5240 term_scroll(term
, 0, +1);
5249 if (x
>= term
->cols
)
5252 selpoint
.y
= y
+ term
->disptop
;
5254 ldata
= lineptr(selpoint
.y
);
5255 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5260 int encstate
= 0, r
, c
;
5267 encstate
= 0x20; /* left button down */
5278 case MBT_WHEEL_DOWN
:
5281 default: break; /* placate gcc warning about enum use */
5285 if (term
->xterm_mouse
== 1)
5291 term
->mouse_is_down
= 0;
5294 if (term
->mouse_is_down
== braw
)
5296 term
->mouse_is_down
= braw
;
5298 default: break; /* placate gcc warning about enum use */
5307 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5308 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5314 * Set the selection type (rectangular or normal) at the start
5315 * of a selection attempt, from the state of Alt.
5317 if (!alt
^ !term
->cfg
.rect_select
)
5318 default_seltype
= RECTANGULAR
;
5320 default_seltype
= LEXICOGRAPHIC
;
5322 if (term
->selstate
== NO_SELECTION
) {
5323 term
->seltype
= default_seltype
;
5326 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5328 term
->selstate
= ABOUT_TO
;
5329 term
->seltype
= default_seltype
;
5330 term
->selanchor
= selpoint
;
5331 term
->selmode
= SM_CHAR
;
5332 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5334 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5335 term
->selstate
= DRAGGING
;
5336 term
->selstart
= term
->selanchor
= selpoint
;
5337 term
->selend
= term
->selstart
;
5338 incpos(term
->selend
);
5340 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5341 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5342 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5344 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5345 term
->selstate
== SELECTED
) {
5346 if (term
->seltype
== LEXICOGRAPHIC
) {
5348 * For normal selection, we extend by moving
5349 * whichever end of the current selection is closer
5352 if (posdiff(selpoint
, term
->selstart
) <
5353 posdiff(term
->selend
, term
->selstart
) / 2) {
5354 term
->selanchor
= term
->selend
;
5355 decpos(term
->selanchor
);
5357 term
->selanchor
= term
->selstart
;
5361 * For rectangular selection, we have a choice of
5362 * _four_ places to put selanchor and selpoint: the
5363 * four corners of the selection.
5365 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5366 term
->selanchor
.x
= term
->selend
.x
-1;
5368 term
->selanchor
.x
= term
->selstart
.x
;
5370 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5371 term
->selanchor
.y
= term
->selend
.y
;
5373 term
->selanchor
.y
= term
->selstart
.y
;
5375 term
->selstate
= DRAGGING
;
5377 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5378 term
->selanchor
= selpoint
;
5379 term
->selstate
= DRAGGING
;
5380 if (term
->seltype
== LEXICOGRAPHIC
) {
5382 * For normal selection, we set (selstart,selend) to
5383 * (selpoint,selanchor) in some order.
5385 if (poslt(selpoint
, term
->selanchor
)) {
5386 term
->selstart
= selpoint
;
5387 term
->selend
= term
->selanchor
;
5388 incpos(term
->selend
);
5390 term
->selstart
= term
->selanchor
;
5391 term
->selend
= selpoint
;
5392 incpos(term
->selend
);
5396 * For rectangular selection, we may need to
5397 * interchange x and y coordinates (if the user has
5398 * dragged in the -x and +y directions, or vice versa).
5400 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5401 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5402 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5403 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5406 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5408 if (term
->selstate
== DRAGGING
) {
5410 * We've completed a selection. We now transfer the
5411 * data to the clipboard.
5413 clipme(term
, term
->selstart
, term
->selend
,
5414 (term
->seltype
== RECTANGULAR
), FALSE
);
5415 term
->selstate
= SELECTED
;
5417 term
->selstate
= NO_SELECTION
;
5418 } else if (bcooked
== MBT_PASTE
5420 #if MULTICLICK_ONLY_EVENT
5421 || a
== MA_2CLK
|| a
== MA_3CLK
5424 request_paste(term
->frontend
);
5430 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5431 unsigned int modifiers
, unsigned int flags
)
5435 int prependesc
= FALSE
;
5439 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5440 for (i
= 0; i
< tlen
; i
++)
5441 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5442 fprintf(stderr
, "\n");
5446 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5449 /* Currently, Meta always just prefixes everything with ESC. */
5450 if (modifiers
& PKM_META
)
5452 modifiers
&= ~PKM_META
;
5455 * Alt is only used for Alt+keypad, which isn't supported yet, so
5458 modifiers
&= ~PKM_ALT
;
5460 /* Standard local function keys */
5461 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5463 if (keysym
== PK_PAGEUP
)
5464 /* scroll up one page */;
5465 if (keysym
== PK_PAGEDOWN
)
5466 /* scroll down on page */;
5467 if (keysym
== PK_INSERT
)
5468 term_do_paste(term
);
5471 if (keysym
== PK_PAGEUP
)
5472 /* scroll up one line */;
5473 if (keysym
== PK_PAGEDOWN
)
5474 /* scroll down one line */;
5475 /* Control-Numlock for app-keypad mode switch */
5476 if (keysym
== PK_PF1
)
5477 term
->app_keypad_keys
^= 1;
5481 if (modifiers
& PKM_ALT
) {
5482 /* Alt+F4 (close) */
5483 /* Alt+Return (full screen) */
5484 /* Alt+Space (system menu) */
5487 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5488 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5489 /* ASCII chars + Control */
5490 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5491 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5495 * Control-2 should return ^@ (0x00), Control-6 should return
5496 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5497 * the DOS keyboard handling did it, and we have nothing better
5498 * to do with the key combo in question, we'll also map
5499 * Control-Backquote to ^\ (0x1C).
5502 case ' ': text
[0] = 0x00; break;
5503 case '-': text
[0] = 0x1f; break;
5504 case '/': text
[0] = 0x1f; break;
5505 case '2': text
[0] = 0x00; break;
5506 case '3': text
[0] = 0x1b; break;
5507 case '4': text
[0] = 0x1c; break;
5508 case '5': text
[0] = 0x1d; break;
5509 case '6': text
[0] = 0x1e; break;
5510 case '7': text
[0] = 0x1f; break;
5511 case '8': text
[0] = 0x7f; break;
5512 case '`': text
[0] = 0x1c; break;
5517 /* Nethack keypad */
5518 if (term
->cfg
.nethack_keypad
) {
5521 case PK_KP1
: c
= 'b'; break;
5522 case PK_KP2
: c
= 'j'; break;
5523 case PK_KP3
: c
= 'n'; break;
5524 case PK_KP4
: c
= 'h'; break;
5525 case PK_KP5
: c
= '.'; break;
5526 case PK_KP6
: c
= 'l'; break;
5527 case PK_KP7
: c
= 'y'; break;
5528 case PK_KP8
: c
= 'k'; break;
5529 case PK_KP9
: c
= 'u'; break;
5530 default: break; /* else gcc warns `enum value not used' */
5534 if (modifiers
& PKM_CONTROL
)
5536 else if (modifiers
& PKM_SHIFT
)
5544 /* Numeric Keypad */
5545 if (PK_ISKEYPAD(keysym
)) {
5549 * In VT400 mode, PFn always emits an escape sequence. In
5550 * Linux and tilde modes, this only happens in app keypad mode.
5552 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5553 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5554 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5555 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5557 case PK_PF1
: xkey
= 'P'; break;
5558 case PK_PF2
: xkey
= 'Q'; break;
5559 case PK_PF3
: xkey
= 'R'; break;
5560 case PK_PF4
: xkey
= 'S'; break;
5561 default: break; /* else gcc warns `enum value not used' */
5564 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5566 case PK_KP0
: xkey
= 'p'; break;
5567 case PK_KP1
: xkey
= 'q'; break;
5568 case PK_KP2
: xkey
= 'r'; break;
5569 case PK_KP3
: xkey
= 's'; break;
5570 case PK_KP4
: xkey
= 't'; break;
5571 case PK_KP5
: xkey
= 'u'; break;
5572 case PK_KP6
: xkey
= 'v'; break;
5573 case PK_KP7
: xkey
= 'w'; break;
5574 case PK_KP8
: xkey
= 'x'; break;
5575 case PK_KP9
: xkey
= 'y'; break;
5576 case PK_KPDECIMAL
: xkey
= 'n'; break;
5577 case PK_KPENTER
: xkey
= 'M'; break;
5578 default: break; /* else gcc warns `enum value not used' */
5580 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5582 * xterm can't see the layout of the keypad, so it has
5583 * to rely on the X keysyms returned by the keys.
5584 * Hence, we look at the strings here, not the PuTTY
5585 * keysyms (which describe the layout).
5589 if (modifiers
& PKM_SHIFT
)
5594 case '/': xkey
= 'o'; break;
5595 case '*': xkey
= 'j'; break;
5596 case '-': xkey
= 'm'; break;
5600 * In all other modes, we try to retain the layout of
5601 * the DEC keypad in application mode.
5605 /* This key covers the '-' and ',' keys on a VT220 */
5606 if (modifiers
& PKM_SHIFT
)
5607 xkey
= 'm'; /* VT220 '-' */
5609 xkey
= 'l'; /* VT220 ',' */
5611 case PK_KPMINUS
: xkey
= 'm'; break;
5612 case PK_KPCOMMA
: xkey
= 'l'; break;
5613 default: break; /* else gcc warns `enum value not used' */
5618 if (term
->vt52_mode
) {
5619 if (xkey
>= 'P' && xkey
<= 'S')
5620 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5622 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
5624 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5627 /* Not in application mode -- treat the number pad as arrow keys? */
5628 if ((flags
& PKF_NUMLOCK
) == 0) {
5630 case PK_KP0
: keysym
= PK_INSERT
; break;
5631 case PK_KP1
: keysym
= PK_END
; break;
5632 case PK_KP2
: keysym
= PK_DOWN
; break;
5633 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
5634 case PK_KP4
: keysym
= PK_LEFT
; break;
5635 case PK_KP5
: keysym
= PK_REST
; break;
5636 case PK_KP6
: keysym
= PK_RIGHT
; break;
5637 case PK_KP7
: keysym
= PK_HOME
; break;
5638 case PK_KP8
: keysym
= PK_UP
; break;
5639 case PK_KP9
: keysym
= PK_PAGEUP
; break;
5640 default: break; /* else gcc warns `enum value not used' */
5645 /* Miscellaneous keys */
5652 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
5653 else if (modifiers
== PKM_SHIFT
)
5654 /* We do the opposite of what is configured */
5655 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
5661 else if (modifiers
== PKM_SHIFT
)
5662 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
5665 /* XXX window.c has ctrl+shift+space sending 0xa0 */
5667 if (modifiers
== PKM_CONTROL
)
5672 case PK_KPENTER
: /* Odd keypad modes handled above */
5673 if (modifiers
== 0) {
5675 if (term
->cr_lf_return
)
5679 default: break; /* else gcc warns `enum value not used' */
5682 /* SCO function keys and editing keys */
5683 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
5684 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
5685 static char const codes
[] =
5686 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
5687 int index
= keysym
- PK_F1
;
5689 if (modifiers
& PKM_SHIFT
) index
+= 12;
5690 if (modifiers
& PKM_CONTROL
) index
+= 24;
5691 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
5694 if (PK_ISEDITING(keysym
)) {
5698 case PK_DELETE
: *p
++ = 0x7f; goto done
;
5699 case PK_HOME
: xkey
= 'H'; break;
5700 case PK_INSERT
: xkey
= 'L'; break;
5701 case PK_END
: xkey
= 'F'; break;
5702 case PK_PAGEUP
: xkey
= 'I'; break;
5703 case PK_PAGEDOWN
: xkey
= 'G'; break;
5704 default: break; /* else gcc warns `enum value not used' */
5706 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5710 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
5713 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
5714 /* Xterm shuffles these keys, apparently. */
5716 case PK_HOME
: keysym
= PK_INSERT
; break;
5717 case PK_INSERT
: keysym
= PK_HOME
; break;
5718 case PK_DELETE
: keysym
= PK_END
; break;
5719 case PK_END
: keysym
= PK_PAGEUP
; break;
5720 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
5721 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
5722 default: break; /* else gcc warns `enum value not used' */
5727 if (term
->cfg
.rxvt_homeend
&&
5728 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
5729 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
5733 if (term
->vt52_mode
) {
5737 * A real VT52 doesn't have these, and a VT220 doesn't
5738 * send anything for them in VT52 mode.
5741 case PK_HOME
: xkey
= 'H'; break;
5742 case PK_INSERT
: xkey
= 'L'; break;
5743 case PK_DELETE
: xkey
= 'M'; break;
5744 case PK_END
: xkey
= 'E'; break;
5745 case PK_PAGEUP
: xkey
= 'I'; break;
5746 case PK_PAGEDOWN
: xkey
= 'G'; break;
5747 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
5749 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5754 case PK_HOME
: code
= 1; break;
5755 case PK_INSERT
: code
= 2; break;
5756 case PK_DELETE
: code
= 3; break;
5757 case PK_END
: code
= 4; break;
5758 case PK_PAGEUP
: code
= 5; break;
5759 case PK_PAGEDOWN
: code
= 6; break;
5760 default: code
= 0; break; /* else gcc warns `enum value not used' */
5762 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
5766 if (PK_ISFKEY(keysym
)) {
5767 /* Map Shift+F1-F10 to F11-F20 */
5768 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
5770 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
5772 /* XXX This overrides the XTERM/VT52 mode below */
5774 if (keysym
>= PK_F6
) offt
++;
5775 if (keysym
>= PK_F12
) offt
++;
5776 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
5777 'P' + keysym
- PK_F1
- offt
);
5780 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
5781 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
5784 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
5785 if (term
->vt52_mode
)
5786 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
5788 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
5791 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
5795 if (PK_ISCURSOR(keysym
)) {
5799 case PK_UP
: xkey
= 'A'; break;
5800 case PK_DOWN
: xkey
= 'B'; break;
5801 case PK_RIGHT
: xkey
= 'C'; break;
5802 case PK_LEFT
: xkey
= 'D'; break;
5803 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
5804 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
5806 if (term
->vt52_mode
)
5807 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5809 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
5811 /* Useful mapping of Ctrl-arrows */
5812 if (modifiers
== PKM_CONTROL
)
5816 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5818 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5824 if (p
> output
|| tlen
> 0) {
5826 * Interrupt an ongoing paste. I'm not sure
5827 * this is sensible, but for the moment it's
5828 * preferable to having to faff about buffering
5834 * We need not bother about stdin backlogs
5835 * here, because in GUI PuTTY we can't do
5836 * anything about it anyway; there's no means
5837 * of asking Windows to hold off on KEYDOWN
5838 * messages. We _have_ to buffer everything
5841 term_seen_key_event(term
);
5845 fprintf(stderr
, "sending ESC\n");
5847 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
5852 fprintf(stderr
, "sending %d bytes:", p
- output
);
5853 for (i
= 0; i
< p
- output
; i
++)
5854 fprintf(stderr
, " %02x", output
[i
]);
5855 fprintf(stderr
, "\n");
5857 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
5858 } else if (tlen
> 0) {
5860 fprintf(stderr
, "sending %d unichars:", tlen
);
5861 for (i
= 0; i
< tlen
; i
++)
5862 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
5863 fprintf(stderr
, "\n");
5865 luni_send(term
->ldisc
, text
, tlen
, 1);
5870 void term_nopaste(Terminal
*term
)
5872 if (term
->paste_len
== 0)
5874 sfree(term
->paste_buffer
);
5875 term
->paste_buffer
= NULL
;
5876 term
->paste_len
= 0;
5879 int term_paste_pending(Terminal
*term
)
5881 return term
->paste_len
!= 0;
5884 void term_paste(Terminal
*term
)
5886 long now
, paste_diff
;
5888 if (term
->paste_len
== 0)
5891 /* Don't wait forever to paste */
5892 if (term
->paste_hold
) {
5893 now
= GETTICKCOUNT();
5894 paste_diff
= now
- term
->last_paste
;
5895 if (paste_diff
>= 0 && paste_diff
< 450)
5898 term
->paste_hold
= 0;
5900 while (term
->paste_pos
< term
->paste_len
) {
5902 while (n
+ term
->paste_pos
< term
->paste_len
) {
5903 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
5907 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
5908 term
->paste_pos
+= n
;
5910 if (term
->paste_pos
< term
->paste_len
) {
5911 term
->paste_hold
= 1;
5915 sfree(term
->paste_buffer
);
5916 term
->paste_buffer
= NULL
;
5917 term
->paste_len
= 0;
5920 static void deselect(Terminal
*term
)
5922 term
->selstate
= NO_SELECTION
;
5923 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
5926 void term_deselect(Terminal
*term
)
5932 int term_ldisc(Terminal
*term
, int option
)
5934 if (option
== LD_ECHO
)
5935 return term
->term_echoing
;
5936 if (option
== LD_EDIT
)
5937 return term
->term_editing
;
5941 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
5943 bufchain_add(&term
->inbuf
, data
, len
);
5945 if (!term
->in_term_out
) {
5946 term
->in_term_out
= TRUE
;
5947 term_blink(term
, 1);
5949 term
->in_term_out
= FALSE
;
5953 * term_out() always completely empties inbuf. Therefore,
5954 * there's no reason at all to return anything other than zero
5955 * from this function, because there _can't_ be a question of
5956 * the remote side needing to wait until term_out() has cleared
5959 * This is a slightly suboptimal way to deal with SSH2 - in
5960 * principle, the window mechanism would allow us to continue
5961 * to accept data on forwarded ports and X connections even
5962 * while the terminal processing was going slowly - but we
5963 * can't do the 100% right thing without moving the terminal
5964 * processing into a separate thread, and that might hurt
5965 * portability. So we manage stdout buffering the old SSH1 way:
5966 * if the terminal processing goes slowly, the whole SSH
5967 * connection stops accepting data until it's ready.
5969 * In practice, I can't imagine this causing serious trouble.
5974 void term_provide_logctx(Terminal
*term
, void *logctx
)
5976 term
->logctx
= logctx
;