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 * This line is the wrong length, which probably means it
853 * hasn't been accessed since a resize. Resize it now.
855 * First, go through all the characters that will be thrown
856 * out in the resize (if we're shrinking the line) and
857 * return their cc lists to the cc free list.
859 for (i
= cols
; i
< line
->cols
; i
++)
863 * Now do the actual resize, leaving the _same_ amount of
864 * cc space as there was to begin with.
867 line
->size
+= cols
- oldlen
;
868 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
872 * Bodily move the entire cc section from where it started
873 * to where it now needs to be.
875 memmove(line
->chars
+ line
->cols
, line
->chars
+ oldlen
,
876 (line
->size
- line
->cols
) * TSIZE
);
879 * Go through what's left of the original line, and adjust
880 * the first cc_next pointer in each list. (All the
881 * subsequent ones are still valid because they are
882 * relative offsets within the cc block.) Also do the same
883 * to the head of the cc_free list.
885 for (i
= 0; i
< oldlen
&& i
< line
->cols
; i
++)
886 if (line
->chars
[i
].cc_next
)
887 line
->chars
[i
].cc_next
+= cols
- oldlen
;
889 line
->cc_free
+= cols
- oldlen
;
892 * And finally fill in the new space with erase chars. (We
893 * don't have to worry about cc lists here, because we
894 * _know_ the erase char doesn't have one.)
896 for (i
= oldlen
; i
< cols
; i
++)
897 line
->chars
[i
] = term
->basic_erase_char
;
899 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
904 * Get the number of lines in the scrollback.
906 static int sblines(Terminal
*term
)
908 int sblines
= count234(term
->scrollback
);
909 if (term
->cfg
.erase_to_scrollback
&&
910 term
->alt_which
&& term
->alt_screen
) {
911 sblines
+= term
->alt_sblines
;
917 * Retrieve a line of the screen or of the scrollback, according to
918 * whether the y coordinate is non-negative or negative
921 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
928 whichtree
= term
->screen
;
935 if (term
->cfg
.erase_to_scrollback
&&
936 term
->alt_which
&& term
->alt_screen
) {
937 altlines
= term
->alt_sblines
;
940 whichtree
= term
->scrollback
;
941 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
943 whichtree
= term
->alt_screen
;
944 treeindex
= y
+ term
->alt_sblines
;
945 /* treeindex = y + count234(term->alt_screen); */
948 if (whichtree
== term
->scrollback
) {
949 unsigned char *cline
= index234(whichtree
, treeindex
);
950 line
= decompressline(cline
, NULL
);
952 line
= index234(whichtree
, treeindex
);
955 /* We assume that we don't screw up and retrieve something out of range. */
956 assert(line
!= NULL
);
958 resizeline(term
, line
, term
->cols
);
959 /* FIXME: should we sort the compressed scrollback out here? */
964 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
965 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
968 * Set up power-on settings for the terminal.
970 static void power_on(Terminal
*term
)
972 term
->curs
.x
= term
->curs
.y
= 0;
973 term
->alt_x
= term
->alt_y
= 0;
974 term
->savecurs
.x
= term
->savecurs
.y
= 0;
975 term
->alt_t
= term
->marg_t
= 0;
976 if (term
->rows
!= -1)
977 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
979 term
->alt_b
= term
->marg_b
= 0;
980 if (term
->cols
!= -1) {
982 for (i
= 0; i
< term
->cols
; i
++)
983 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
985 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
986 term
->alt_ins
= term
->insert
= FALSE
;
987 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
988 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
989 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
990 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
992 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
993 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= CSET_ASCII
;
995 term
->in_vbell
= FALSE
;
997 term
->big_cursor
= 0;
998 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
999 term
->term_editing
= term
->term_echoing
= FALSE
;
1000 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1001 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1002 term
->use_bce
= term
->cfg
.bce
;
1003 term
->blink_is_real
= term
->cfg
.blinktext
;
1004 term
->erase_char
= term
->basic_erase_char
;
1005 term
->alt_which
= 0;
1006 term_print_finish(term
);
1009 for (i
= 0; i
< 256; i
++)
1010 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1013 swap_screen(term
, 1, FALSE
, FALSE
);
1014 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1015 swap_screen(term
, 0, FALSE
, FALSE
);
1016 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1021 * Force a screen update.
1023 void term_update(Terminal
*term
)
1026 ctx
= get_ctx(term
->frontend
);
1028 int need_sbar_update
= term
->seen_disp_event
;
1029 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1030 term
->disptop
= 0; /* return to main screen */
1031 term
->seen_disp_event
= 0;
1032 need_sbar_update
= TRUE
;
1035 if (need_sbar_update
)
1037 do_paint(term
, ctx
, TRUE
);
1038 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1044 * Called from front end when a keypress occurs, to trigger
1045 * anything magical that needs to happen in that situation.
1047 void term_seen_key_event(Terminal
*term
)
1050 * On any keypress, clear the bell overload mechanism
1051 * completely, on the grounds that large numbers of
1052 * beeps coming from deliberate key action are likely
1053 * to be intended (e.g. beeps from filename completion
1054 * blocking repeatedly).
1056 term
->beep_overloaded
= FALSE
;
1057 while (term
->beephead
) {
1058 struct beeptime
*tmp
= term
->beephead
;
1059 term
->beephead
= tmp
->next
;
1062 term
->beeptail
= NULL
;
1066 * Reset the scrollback on keypress, if we're doing that.
1068 if (term
->cfg
.scroll_on_key
) {
1069 term
->disptop
= 0; /* return to main screen */
1070 term
->seen_disp_event
= 1;
1075 * Same as power_on(), but an external function.
1077 void term_pwron(Terminal
*term
)
1080 if (term
->ldisc
) /* cause ldisc to notice changes */
1081 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1087 static void set_erase_char(Terminal
*term
)
1089 term
->erase_char
= term
->basic_erase_char
;
1091 term
->erase_char
.attr
= (term
->curr_attr
&
1092 (ATTR_FGMASK
| ATTR_BGMASK
));
1096 * When the user reconfigures us, we need to check the forbidden-
1097 * alternate-screen config option, disable raw mouse mode if the
1098 * user has disabled mouse reporting, and abandon a print job if
1099 * the user has disabled printing.
1101 void term_reconfig(Terminal
*term
, Config
*cfg
)
1104 * Before adopting the new config, check all those terminal
1105 * settings which control power-on defaults; and if they've
1106 * changed, we will modify the current state as well as the
1107 * default one. The full list is: Auto wrap mode, DEC Origin
1108 * Mode, BCE, blinking text, character classes.
1110 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
1113 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1114 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1115 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1116 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1117 reset_charclass
= 0;
1118 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1119 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1120 reset_charclass
= 1;
1122 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1125 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1127 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1129 term
->use_bce
= term
->cfg
.bce
;
1130 set_erase_char(term
);
1133 term
->blink_is_real
= term
->cfg
.blinktext
;
1134 if (reset_charclass
)
1135 for (i
= 0; i
< 256; i
++)
1136 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1138 if (term
->cfg
.no_alt_screen
)
1139 swap_screen(term
, 0, FALSE
, FALSE
);
1140 if (term
->cfg
.no_mouse_rep
) {
1141 term
->xterm_mouse
= 0;
1142 set_raw_mouse_mode(term
->frontend
, 0);
1144 if (term
->cfg
.no_remote_charset
) {
1145 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1146 term
->sco_acs
= term
->alt_sco_acs
= 0;
1149 if (!*term
->cfg
.printer
) {
1150 term_print_finish(term
);
1155 * Clear the scrollback.
1157 void term_clrsb(Terminal
*term
)
1161 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1162 sfree(line
); /* this is compressed data, not a termline */
1164 term
->tempsblines
= 0;
1165 term
->alt_sblines
= 0;
1170 * Initialise the terminal.
1172 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1178 * Allocate a new Terminal structure and initialise the fields
1181 term
= snew(Terminal
);
1182 term
->frontend
= frontend
;
1183 term
->ucsdata
= ucsdata
;
1184 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1185 term
->logctx
= NULL
;
1186 term
->compatibility_level
= TM_PUTTY
;
1187 strcpy(term
->id_string
, "\033[?6c");
1188 term
->last_blink
= term
->last_tblink
= 0;
1189 term
->paste_buffer
= NULL
;
1190 term
->paste_len
= 0;
1191 term
->last_paste
= 0;
1192 bufchain_init(&term
->inbuf
);
1193 bufchain_init(&term
->printer_buf
);
1194 term
->printing
= term
->only_printing
= FALSE
;
1195 term
->print_job
= NULL
;
1196 term
->vt52_mode
= FALSE
;
1197 term
->cr_lf_return
= FALSE
;
1198 term
->seen_disp_event
= FALSE
;
1199 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1200 term
->reset_132
= FALSE
;
1201 term
->blinker
= term
->tblinker
= 0;
1202 term
->has_focus
= 1;
1203 term
->repeat_off
= FALSE
;
1204 term
->termstate
= TOPLEVEL
;
1205 term
->selstate
= NO_SELECTION
;
1208 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1209 term
->tempsblines
= 0;
1210 term
->alt_sblines
= 0;
1212 term
->disptext
= NULL
;
1213 term
->dispcursx
= term
->dispcursy
= -1;
1216 term
->rows
= term
->cols
= -1;
1218 term
->beephead
= term
->beeptail
= NULL
;
1219 #ifdef OPTIMISE_SCROLL
1220 term
->scrollhead
= term
->scrolltail
= NULL
;
1221 #endif /* OPTIMISE_SCROLL */
1223 term
->lastbeep
= FALSE
;
1224 term
->beep_overloaded
= FALSE
;
1225 term
->attr_mask
= 0xffffffff;
1226 term
->resize_fn
= NULL
;
1227 term
->resize_ctx
= NULL
;
1228 term
->in_term_out
= FALSE
;
1230 term
->ltemp_size
= 0;
1231 term
->wcFrom
= NULL
;
1233 term
->wcFromTo_size
= 0;
1235 term
->bidi_cache_size
= 0;
1236 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1239 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1240 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1241 term
->basic_erase_char
.cc_next
= 0;
1242 term
->erase_char
= term
->basic_erase_char
;
1247 void term_free(Terminal
*term
)
1250 struct beeptime
*beep
;
1253 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1254 sfree(line
); /* compressed data, not a termline */
1255 freetree234(term
->scrollback
);
1256 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1258 freetree234(term
->screen
);
1259 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1261 freetree234(term
->alt_screen
);
1262 if (term
->disptext
) {
1263 for (i
= 0; i
< term
->rows
; i
++)
1264 freeline(term
->disptext
[i
]);
1266 sfree(term
->disptext
);
1267 while (term
->beephead
) {
1268 beep
= term
->beephead
;
1269 term
->beephead
= beep
->next
;
1272 bufchain_clear(&term
->inbuf
);
1274 printer_finish_job(term
->print_job
);
1275 bufchain_clear(&term
->printer_buf
);
1276 sfree(term
->paste_buffer
);
1278 sfree(term
->wcFrom
);
1281 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1282 sfree(term
->pre_bidi_cache
[i
]);
1283 sfree(term
->post_bidi_cache
[i
]);
1285 sfree(term
->pre_bidi_cache
);
1286 sfree(term
->post_bidi_cache
);
1292 * Set up the terminal for a given size.
1294 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1297 termline
**newdisp
, *line
;
1298 int i
, j
, oldrows
= term
->rows
;
1300 int save_alt_which
= term
->alt_which
;
1302 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1303 newsavelines
== term
->savelines
)
1304 return; /* nothing to do */
1307 swap_screen(term
, 0, FALSE
, FALSE
);
1309 term
->alt_t
= term
->marg_t
= 0;
1310 term
->alt_b
= term
->marg_b
= newrows
- 1;
1312 if (term
->rows
== -1) {
1313 term
->scrollback
= newtree234(NULL
);
1314 term
->screen
= newtree234(NULL
);
1315 term
->tempsblines
= 0;
1320 * Resize the screen and scrollback. We only need to shift
1321 * lines around within our data structures, because lineptr()
1322 * will take care of resizing each individual line if
1325 * - If the new screen is longer, we shunt lines in from temporary
1326 * scrollback if possible, otherwise we add new blank lines at
1329 * - If the new screen is shorter, we remove any blank lines at
1330 * the bottom if possible, otherwise shunt lines above the cursor
1331 * to scrollback if possible, otherwise delete lines below the
1334 * - Then, if the new scrollback length is less than the
1335 * amount of scrollback we actually have, we must throw some
1338 sblen
= count234(term
->scrollback
);
1339 /* Do this loop to expand the screen if newrows > rows */
1340 assert(term
->rows
== count234(term
->screen
));
1341 while (term
->rows
< newrows
) {
1342 if (term
->tempsblines
> 0) {
1343 unsigned char *cline
;
1344 /* Insert a line from the scrollback at the top of the screen. */
1345 assert(sblen
>= term
->tempsblines
);
1346 cline
= delpos234(term
->scrollback
, --sblen
);
1347 line
= decompressline(cline
, NULL
);
1349 line
->temporary
= FALSE
; /* reconstituted line is now real */
1350 term
->tempsblines
-= 1;
1351 addpos234(term
->screen
, line
, 0);
1353 term
->savecurs
.y
+= 1;
1355 /* Add a new blank line at the bottom of the screen. */
1356 line
= newline(term
, newcols
, FALSE
);
1357 addpos234(term
->screen
, line
, count234(term
->screen
));
1361 /* Do this loop to shrink the screen if newrows < rows */
1362 while (term
->rows
> newrows
) {
1363 if (term
->curs
.y
< term
->rows
- 1) {
1364 /* delete bottom row, unless it contains the cursor */
1365 sfree(delpos234(term
->screen
, term
->rows
- 1));
1367 /* push top row to scrollback */
1368 line
= delpos234(term
->screen
, 0);
1369 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1371 term
->tempsblines
+= 1;
1373 term
->savecurs
.y
-= 1;
1377 assert(term
->rows
== newrows
);
1378 assert(count234(term
->screen
) == newrows
);
1380 /* Delete any excess lines from the scrollback. */
1381 while (sblen
> newsavelines
) {
1382 line
= delpos234(term
->scrollback
, 0);
1386 if (sblen
< term
->tempsblines
)
1387 term
->tempsblines
= sblen
;
1388 assert(count234(term
->scrollback
) <= newsavelines
);
1389 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1392 /* Make a new displayed text buffer. */
1393 newdisp
= snewn(newrows
, termline
*);
1394 for (i
= 0; i
< newrows
; i
++) {
1395 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1396 for (j
= 0; j
< newcols
; j
++)
1397 newdisp
[i
]->chars
[i
].attr
= ATTR_INVALID
;
1399 if (term
->disptext
) {
1400 for (i
= 0; i
< oldrows
; i
++)
1401 freeline(term
->disptext
[i
]);
1403 sfree(term
->disptext
);
1404 term
->disptext
= newdisp
;
1405 term
->dispcursx
= term
->dispcursy
= -1;
1407 /* Make a new alternate screen. */
1408 newalt
= newtree234(NULL
);
1409 for (i
= 0; i
< newrows
; i
++) {
1410 line
= newline(term
, newcols
, TRUE
);
1411 addpos234(newalt
, line
, i
);
1413 if (term
->alt_screen
) {
1414 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1416 freetree234(term
->alt_screen
);
1418 term
->alt_screen
= newalt
;
1419 term
->alt_sblines
= 0;
1421 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1424 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1425 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1428 /* Check that the cursor positions are still valid. */
1429 if (term
->savecurs
.y
< 0)
1430 term
->savecurs
.y
= 0;
1431 if (term
->savecurs
.y
>= newrows
)
1432 term
->savecurs
.y
= newrows
- 1;
1433 if (term
->curs
.y
< 0)
1435 if (term
->curs
.y
>= newrows
)
1436 term
->curs
.y
= newrows
- 1;
1437 if (term
->curs
.x
>= newcols
)
1438 term
->curs
.x
= newcols
- 1;
1439 term
->alt_x
= term
->alt_y
= 0;
1440 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1442 term
->rows
= newrows
;
1443 term
->cols
= newcols
;
1444 term
->savelines
= newsavelines
;
1446 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1450 if (term
->resize_fn
)
1451 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1455 * Hand a function and context pointer to the terminal which it can
1456 * use to notify a back end of resizes.
1458 void term_provide_resize_fn(Terminal
*term
,
1459 void (*resize_fn
)(void *, int, int),
1462 term
->resize_fn
= resize_fn
;
1463 term
->resize_ctx
= resize_ctx
;
1464 if (term
->cols
> 0 && term
->rows
> 0)
1465 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1468 /* Find the bottom line on the screen that has any content.
1469 * If only the top line has content, returns 0.
1470 * If no lines have content, return -1.
1472 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1475 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1476 termline
*line
= index234(screen
, i
);
1478 for (j
= 0; j
< line
->cols
; j
++)
1479 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1481 if (j
!= line
->cols
) break;
1487 * Swap screens. If `reset' is TRUE and we have been asked to
1488 * switch to the alternate screen, we must bring most of its
1489 * configuration from the main screen and erase the contents of the
1490 * alternate screen completely. (This is even true if we're already
1491 * on it! Blame xterm.)
1493 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1499 reset
= FALSE
; /* do no weird resetting if which==0 */
1501 if (which
!= term
->alt_which
) {
1502 term
->alt_which
= which
;
1504 ttr
= term
->alt_screen
;
1505 term
->alt_screen
= term
->screen
;
1507 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1509 if (!reset
&& !keep_cur_pos
)
1510 term
->curs
.x
= term
->alt_x
;
1513 if (!reset
&& !keep_cur_pos
)
1514 term
->curs
.y
= term
->alt_y
;
1517 if (!reset
) term
->marg_t
= term
->alt_t
;
1520 if (!reset
) term
->marg_b
= term
->alt_b
;
1523 if (!reset
) term
->dec_om
= term
->alt_om
;
1526 if (!reset
) term
->wrap
= term
->alt_wrap
;
1529 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1530 term
->alt_wnext
= t
;
1532 if (!reset
) term
->insert
= term
->alt_ins
;
1535 if (!reset
) term
->cset
= term
->alt_cset
;
1538 if (!reset
) term
->utf
= term
->alt_utf
;
1541 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1542 term
->alt_sco_acs
= t
;
1545 if (reset
&& term
->screen
) {
1547 * Yes, this _is_ supposed to honour background-colour-erase.
1549 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1554 * Update the scroll bar.
1556 static void update_sbar(Terminal
*term
)
1558 int nscroll
= sblines(term
);
1559 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1560 nscroll
+ term
->disptop
, term
->rows
);
1564 * Check whether the region bounded by the two pointers intersects
1565 * the scroll region, and de-select the on-screen selection if so.
1567 static void check_selection(Terminal
*term
, pos from
, pos to
)
1569 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1574 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1575 * for backward.) `sb' is TRUE if the scrolling is permitted to
1576 * affect the scrollback buffer.
1578 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1581 int i
, seltop
, olddisptop
, shift
;
1583 if (topline
!= 0 || term
->alt_which
!= 0)
1586 olddisptop
= term
->disptop
;
1590 line
= delpos234(term
->screen
, botline
);
1591 resizeline(term
, line
, term
->cols
);
1592 for (i
= 0; i
< term
->cols
; i
++)
1593 copy_termchar(line
, i
, &term
->erase_char
);
1594 line
->lattr
= LATTR_NORM
;
1595 addpos234(term
->screen
, line
, topline
);
1597 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1599 if (term
->selstart
.y
> botline
) {
1600 term
->selstart
.y
= botline
+ 1;
1601 term
->selstart
.x
= 0;
1604 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1606 if (term
->selend
.y
> botline
) {
1607 term
->selend
.y
= botline
+ 1;
1616 line
= delpos234(term
->screen
, topline
);
1617 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
1618 if (sb
&& term
->savelines
> 0) {
1619 int sblen
= count234(term
->scrollback
);
1621 * We must add this line to the scrollback. We'll
1622 * remove a line from the top of the scrollback if
1623 * the scrollback is full.
1625 if (sblen
== term
->savelines
) {
1626 unsigned char *cline
;
1629 cline
= delpos234(term
->scrollback
, 0);
1632 term
->tempsblines
+= 1;
1634 addpos234(term
->scrollback
, compressline(line
), sblen
);
1636 line
= newline(term
, term
->cols
, TRUE
);
1639 * If the user is currently looking at part of the
1640 * scrollback, and they haven't enabled any options
1641 * that are going to reset the scrollback as a
1642 * result of this movement, then the chances are
1643 * they'd like to keep looking at the same line. So
1644 * we move their viewpoint at the same rate as the
1645 * scroll, at least until their viewpoint hits the
1646 * top end of the scrollback buffer, at which point
1647 * we don't have the choice any more.
1649 * Thanks to Jan Holmen Holsten for the idea and
1650 * initial implementation.
1652 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1655 resizeline(term
, line
, term
->cols
);
1656 for (i
= 0; i
< term
->cols
; i
++)
1657 copy_termchar(line
, i
, &term
->erase_char
);
1658 line
->lattr
= LATTR_NORM
;
1659 addpos234(term
->screen
, line
, botline
);
1662 * If the selection endpoints move into the scrollback,
1663 * we keep them moving until they hit the top. However,
1664 * of course, if the line _hasn't_ moved into the
1665 * scrollback then we don't do this, and cut them off
1666 * at the top of the scroll region.
1668 * This applies to selstart and selend (for an existing
1669 * selection), and also selanchor (for one being
1670 * selected as we speak).
1672 seltop
= sb ?
-term
->savelines
: topline
;
1674 if (term
->selstate
!= NO_SELECTION
) {
1675 if (term
->selstart
.y
>= seltop
&&
1676 term
->selstart
.y
<= botline
) {
1678 if (term
->selstart
.y
< seltop
) {
1679 term
->selstart
.y
= seltop
;
1680 term
->selstart
.x
= 0;
1683 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1685 if (term
->selend
.y
< seltop
) {
1686 term
->selend
.y
= seltop
;
1690 if (term
->selanchor
.y
>= seltop
&&
1691 term
->selanchor
.y
<= botline
) {
1692 term
->selanchor
.y
--;
1693 if (term
->selanchor
.y
< seltop
) {
1694 term
->selanchor
.y
= seltop
;
1695 term
->selanchor
.x
= 0;
1703 #ifdef OPTIMISE_SCROLL
1704 shift
+= term
->disptop
- olddisptop
;
1705 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1706 scroll_display(term
, topline
, botline
, shift
);
1707 #endif /* OPTIMISE_SCROLL */
1710 #ifdef OPTIMISE_SCROLL
1712 * Add a scroll of a region on the screen into the pending scroll list.
1713 * `lines' is +ve for scrolling forward, -ve for backward.
1715 * If the scroll is on the same area as the last scroll in the list,
1718 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
1720 struct scrollregion
*newscroll
;
1721 if (term
->scrolltail
&&
1722 term
->scrolltail
->topline
== topline
&&
1723 term
->scrolltail
->botline
== botline
) {
1724 term
->scrolltail
->lines
+= lines
;
1726 newscroll
= snew(struct scrollregion
);
1727 newscroll
->topline
= topline
;
1728 newscroll
->botline
= botline
;
1729 newscroll
->lines
= lines
;
1730 newscroll
->next
= NULL
;
1732 if (!term
->scrollhead
)
1733 term
->scrollhead
= newscroll
;
1735 term
->scrolltail
->next
= newscroll
;
1736 term
->scrolltail
= newscroll
;
1741 * Scroll the physical display, and our conception of it in disptext.
1743 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
1745 int distance
, nlines
, i
, j
;
1747 distance
= lines
> 0 ? lines
: -lines
;
1748 nlines
= botline
- topline
+ 1 - distance
;
1750 for (i
= 0; i
< nlines
; i
++)
1751 for (j
= 0; j
< term
->cols
; j
++)
1752 copy_termchar(term
->disptext
[start
+i
], j
,
1753 term
->disptext
[start
+i
+distance
]->chars
+j
);
1754 if (term
->dispcursy
>= 0 &&
1755 term
->dispcursy
>= topline
+ distance
&&
1756 term
->dispcursy
< topline
+ distance
+ nlines
)
1757 term
->dispcursy
-= distance
;
1758 for (i
= 0; i
< distance
; i
++)
1759 for (j
= 0; j
< term
->cols
; j
++)
1760 term
->disptext
[start
+nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1762 for (i
= nlines
; i
-- ;)
1763 for (j
= 0; j
< term
->cols
; j
++)
1764 copy_termchar(term
->disptext
[start
+i
+distance
], j
,
1765 term
->disptext
[start
+i
]->chars
+j
);
1766 if (term
->dispcursy
>= 0 &&
1767 term
->dispcursy
>= topline
&&
1768 term
->dispcursy
< topline
+ nlines
)
1769 term
->dispcursy
+= distance
;
1770 for (i
= 0; i
< distance
; i
++)
1771 for (j
= 0; j
< term
->cols
; j
++)
1772 term
->disptext
[start
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1774 save_scroll(term
, topline
, botline
, lines
);
1776 #endif /* OPTIMISE_SCROLL */
1779 * Move the cursor to a given position, clipping at boundaries. We
1780 * may or may not want to clip at the scroll margin: marg_clip is 0
1781 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
1782 * even _being_ outside the margins.
1784 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
1788 if (x
>= term
->cols
)
1791 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
1794 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
1800 if (y
>= term
->rows
)
1804 term
->wrapnext
= FALSE
;
1808 * Save or restore the cursor and SGR mode.
1810 static void save_cursor(Terminal
*term
, int save
)
1813 term
->savecurs
= term
->curs
;
1814 term
->save_attr
= term
->curr_attr
;
1815 term
->save_cset
= term
->cset
;
1816 term
->save_utf
= term
->utf
;
1817 term
->save_wnext
= term
->wrapnext
;
1818 term
->save_csattr
= term
->cset_attr
[term
->cset
];
1819 term
->save_sco_acs
= term
->sco_acs
;
1821 term
->curs
= term
->savecurs
;
1822 /* Make sure the window hasn't shrunk since the save */
1823 if (term
->curs
.x
>= term
->cols
)
1824 term
->curs
.x
= term
->cols
- 1;
1825 if (term
->curs
.y
>= term
->rows
)
1826 term
->curs
.y
= term
->rows
- 1;
1828 term
->curr_attr
= term
->save_attr
;
1829 term
->cset
= term
->save_cset
;
1830 term
->utf
= term
->save_utf
;
1831 term
->wrapnext
= term
->save_wnext
;
1833 * wrapnext might reset to False if the x position is no
1834 * longer at the rightmost edge.
1836 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
1837 term
->wrapnext
= FALSE
;
1838 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
1839 term
->sco_acs
= term
->save_sco_acs
;
1840 set_erase_char(term
);
1845 * This function is called before doing _anything_ which affects
1846 * only part of a line of text. It is used to mark the boundary
1847 * between two character positions, and it indicates that some sort
1848 * of effect is going to happen on only one side of that boundary.
1850 * The effect of this function is to check whether a CJK
1851 * double-width character is straddling the boundary, and to remove
1852 * it and replace it with two spaces if so. (Of course, one or
1853 * other of those spaces is then likely to be replaced with
1854 * something else again, as a result of whatever happens next.)
1856 * Also, if the boundary is at the right-hand _edge_ of the screen,
1857 * it implies something deliberate is being done to the rightmost
1858 * column position; hence we must clear LATTR_WRAPPED2.
1860 * The input to the function is the coordinates of the _second_
1861 * character of the pair.
1863 static void check_boundary(Terminal
*term
, int x
, int y
)
1867 /* Validate input coordinates, just in case. */
1868 if (x
== 0 || x
> term
->cols
)
1871 ldata
= scrlineptr(y
);
1872 if (x
== term
->cols
) {
1873 ldata
->lattr
&= ~LATTR_WRAPPED2
;
1875 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
1876 clear_cc(ldata
, x
-1);
1878 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
1879 ldata
->chars
[x
] = ldata
->chars
[x
-1];
1885 * Erase a large portion of the screen: the whole screen, or the
1886 * whole line, or parts thereof.
1888 static void erase_lots(Terminal
*term
,
1889 int line_only
, int from_begin
, int to_end
)
1893 int erasing_lines_from_top
= 0;
1896 start
.y
= term
->curs
.y
;
1898 end
.y
= term
->curs
.y
+ 1;
1900 erase_lattr
= FALSE
;
1915 if (!from_begin
|| !to_end
)
1916 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1917 check_selection(term
, start
, end
);
1919 /* Clear screen also forces a full window redraw, just in case. */
1920 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1921 term_invalidate(term
);
1923 /* Lines scrolled away shouldn't be brought back on if the terminal
1925 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
1926 erasing_lines_from_top
= 1;
1928 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
1929 /* If it's a whole number of lines, starting at the top, and
1930 * we're fully erasing them, erase by scrolling and keep the
1931 * lines in the scrollback. */
1932 int scrolllines
= end
.y
;
1933 if (end
.y
== term
->rows
) {
1934 /* Shrink until we find a non-empty row.*/
1935 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1937 if (scrolllines
> 0)
1938 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1940 termline
*ldata
= scrlineptr(start
.y
);
1941 while (poslt(start
, end
)) {
1942 if (start
.x
== term
->cols
) {
1944 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1946 ldata
->lattr
= LATTR_NORM
;
1948 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
1950 if (incpos(start
) && start
.y
< term
->rows
) {
1951 ldata
= scrlineptr(start
.y
);
1956 /* After an erase of lines from the top of the screen, we shouldn't
1957 * bring the lines back again if the terminal enlarges (since the user or
1958 * application has explictly thrown them away). */
1959 if (erasing_lines_from_top
&& !(term
->alt_which
))
1960 term
->tempsblines
= 0;
1964 * Insert or delete characters within the current line. n is +ve if
1965 * insertion is desired, and -ve for deletion.
1967 static void insch(Terminal
*term
, int n
)
1969 int dir
= (n
< 0 ?
-1 : +1);
1974 n
= (n
< 0 ?
-n
: n
);
1975 if (n
> term
->cols
- term
->curs
.x
)
1976 n
= term
->cols
- term
->curs
.x
;
1977 m
= term
->cols
- term
->curs
.x
- n
;
1978 cursplus
.y
= term
->curs
.y
;
1979 cursplus
.x
= term
->curs
.x
+ n
;
1980 check_selection(term
, term
->curs
, cursplus
);
1981 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1983 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
1984 ldata
= scrlineptr(term
->curs
.y
);
1986 for (j
= 0; j
< m
; j
++)
1987 move_termchar(ldata
,
1988 ldata
->chars
+ term
->curs
.x
+ j
,
1989 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
1991 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
1994 move_termchar(ldata
,
1995 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
1996 ldata
->chars
+ term
->curs
.x
+ j
);
1998 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2003 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2004 * whether the mode is a DEC private one or a normal one.)
2006 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2008 unsigned long ticks
;
2012 case 1: /* DECCKM: application cursor keys */
2013 term
->app_cursor_keys
= state
;
2015 case 2: /* DECANM: VT52 mode */
2016 term
->vt52_mode
= !state
;
2017 if (term
->vt52_mode
) {
2018 term
->blink_is_real
= FALSE
;
2019 term
->vt52_bold
= FALSE
;
2021 term
->blink_is_real
= term
->cfg
.blinktext
;
2024 case 3: /* DECCOLM: 80/132 columns */
2026 if (!term
->cfg
.no_remote_resize
)
2027 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2028 term
->reset_132
= state
;
2029 term
->alt_t
= term
->marg_t
= 0;
2030 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2031 move(term
, 0, 0, 0);
2032 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2034 case 5: /* DECSCNM: reverse video */
2036 * Toggle reverse video. If we receive an OFF within the
2037 * visual bell timeout period after an ON, we trigger an
2038 * effective visual bell, so that ESC[?5hESC[?5l will
2039 * always be an actually _visible_ visual bell.
2041 ticks
= GETTICKCOUNT();
2042 /* turn off a previous vbell to avoid inconsistencies */
2043 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2044 term
->in_vbell
= FALSE
;
2045 if (term
->rvideo
&& !state
&& /* we're turning it off... */
2046 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
2047 /* If there's no vbell timeout already, or this one lasts
2048 * longer, replace vbell_timeout with ours. */
2049 if (!term
->in_vbell
||
2050 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
2052 term
->vbell_startpoint
= term
->rvbell_startpoint
;
2053 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
2054 } else if (!term
->rvideo
&& state
) {
2055 /* This is an ON, so we notice the time and save it. */
2056 term
->rvbell_startpoint
= ticks
;
2058 term
->rvideo
= state
;
2059 term
->seen_disp_event
= TRUE
;
2063 case 6: /* DECOM: DEC origin mode */
2064 term
->dec_om
= state
;
2066 case 7: /* DECAWM: auto wrap */
2069 case 8: /* DECARM: auto key repeat */
2070 term
->repeat_off
= !state
;
2072 case 10: /* DECEDM: set local edit mode */
2073 term
->term_editing
= state
;
2074 if (term
->ldisc
) /* cause ldisc to notice changes */
2075 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2077 case 25: /* DECTCEM: enable/disable cursor */
2078 compatibility2(OTHER
, VT220
);
2079 term
->cursor_on
= state
;
2080 term
->seen_disp_event
= TRUE
;
2082 case 47: /* alternate screen */
2083 compatibility(OTHER
);
2085 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2088 case 1000: /* xterm mouse 1 */
2089 term
->xterm_mouse
= state ?
1 : 0;
2090 set_raw_mouse_mode(term
->frontend
, state
);
2092 case 1002: /* xterm mouse 2 */
2093 term
->xterm_mouse
= state ?
2 : 0;
2094 set_raw_mouse_mode(term
->frontend
, state
);
2096 case 1047: /* alternate screen */
2097 compatibility(OTHER
);
2099 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2102 case 1048: /* save/restore cursor */
2103 if (!term
->cfg
.no_alt_screen
)
2104 save_cursor(term
, state
);
2105 if (!state
) term
->seen_disp_event
= TRUE
;
2107 case 1049: /* cursor & alternate screen */
2108 if (state
&& !term
->cfg
.no_alt_screen
)
2109 save_cursor(term
, state
);
2110 if (!state
) term
->seen_disp_event
= TRUE
;
2111 compatibility(OTHER
);
2113 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2114 if (!state
&& !term
->cfg
.no_alt_screen
)
2115 save_cursor(term
, state
);
2120 case 4: /* IRM: set insert mode */
2121 compatibility(VT102
);
2122 term
->insert
= state
;
2124 case 12: /* SRM: set echo mode */
2125 term
->term_echoing
= !state
;
2126 if (term
->ldisc
) /* cause ldisc to notice changes */
2127 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2129 case 20: /* LNM: Return sends ... */
2130 term
->cr_lf_return
= state
;
2132 case 34: /* WYULCURM: Make cursor BIG */
2133 compatibility2(OTHER
, VT220
);
2134 term
->big_cursor
= !state
;
2139 * Process an OSC sequence: set window title or icon name.
2141 static void do_osc(Terminal
*term
)
2144 while (term
->osc_strlen
--)
2145 term
->wordness
[(unsigned char)
2146 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2148 term
->osc_string
[term
->osc_strlen
] = '\0';
2149 switch (term
->esc_args
[0]) {
2152 if (!term
->cfg
.no_remote_wintitle
)
2153 set_icon(term
->frontend
, term
->osc_string
);
2154 if (term
->esc_args
[0] == 1)
2156 /* fall through: parameter 0 means set both */
2159 if (!term
->cfg
.no_remote_wintitle
)
2160 set_title(term
->frontend
, term
->osc_string
);
2167 * ANSI printing routines.
2169 static void term_print_setup(Terminal
*term
)
2171 bufchain_clear(&term
->printer_buf
);
2172 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2174 static void term_print_flush(Terminal
*term
)
2179 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2180 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2183 printer_job_data(term
->print_job
, data
, len
);
2184 bufchain_consume(&term
->printer_buf
, len
);
2187 static void term_print_finish(Terminal
*term
)
2193 if (!term
->printing
&& !term
->only_printing
)
2194 return; /* we need do nothing */
2196 term_print_flush(term
);
2197 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2198 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2200 if (c
== '\033' || c
== '\233') {
2201 bufchain_consume(&term
->printer_buf
, size
);
2204 printer_job_data(term
->print_job
, &c
, 1);
2205 bufchain_consume(&term
->printer_buf
, 1);
2208 printer_finish_job(term
->print_job
);
2209 term
->print_job
= NULL
;
2210 term
->printing
= term
->only_printing
= FALSE
;
2214 * Remove everything currently in `inbuf' and stick it up on the
2215 * in-memory display. There's a big state machine in here to
2216 * process escape sequences...
2218 void term_out(Terminal
*term
)
2222 unsigned char localbuf
[256], *chars
;
2227 chars
= NULL
; /* placate compiler warnings */
2228 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
2232 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2233 if (nchars
> sizeof(localbuf
))
2234 nchars
= sizeof(localbuf
);
2235 memcpy(localbuf
, ret
, nchars
);
2236 bufchain_consume(&term
->inbuf
, nchars
);
2238 assert(chars
!= NULL
);
2244 * Optionally log the session traffic to a file. Useful for
2245 * debugging and possibly also useful for actual logging.
2247 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2248 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2254 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2255 * be able to display 8-bit characters, but I'll let that go 'cause
2260 * If we're printing, add the character to the printer
2263 if (term
->printing
) {
2264 bufchain_add(&term
->printer_buf
, &c
, 1);
2267 * If we're in print-only mode, we use a much simpler
2268 * state machine designed only to recognise the ESC[4i
2269 * termination sequence.
2271 if (term
->only_printing
) {
2273 term
->print_state
= 1;
2274 else if (c
== (unsigned char)'\233')
2275 term
->print_state
= 2;
2276 else if (c
== '[' && term
->print_state
== 1)
2277 term
->print_state
= 2;
2278 else if (c
== '4' && term
->print_state
== 2)
2279 term
->print_state
= 3;
2280 else if (c
== 'i' && term
->print_state
== 3)
2281 term
->print_state
= 4;
2283 term
->print_state
= 0;
2284 if (term
->print_state
== 4) {
2285 term_print_finish(term
);
2291 /* First see about all those translations. */
2292 if (term
->termstate
== TOPLEVEL
) {
2294 switch (term
->utf_state
) {
2297 /* UTF-8 must be stateless so we ignore iso2022. */
2298 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2299 c
= term
->ucsdata
->unitab_ctrl
[c
];
2300 else c
= ((unsigned char)c
) | CSET_ASCII
;
2302 } else if ((c
& 0xe0) == 0xc0) {
2303 term
->utf_size
= term
->utf_state
= 1;
2304 term
->utf_char
= (c
& 0x1f);
2305 } else if ((c
& 0xf0) == 0xe0) {
2306 term
->utf_size
= term
->utf_state
= 2;
2307 term
->utf_char
= (c
& 0x0f);
2308 } else if ((c
& 0xf8) == 0xf0) {
2309 term
->utf_size
= term
->utf_state
= 3;
2310 term
->utf_char
= (c
& 0x07);
2311 } else if ((c
& 0xfc) == 0xf8) {
2312 term
->utf_size
= term
->utf_state
= 4;
2313 term
->utf_char
= (c
& 0x03);
2314 } else if ((c
& 0xfe) == 0xfc) {
2315 term
->utf_size
= term
->utf_state
= 5;
2316 term
->utf_char
= (c
& 0x01);
2327 if ((c
& 0xC0) != 0x80) {
2330 term
->utf_state
= 0;
2333 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2334 if (--term
->utf_state
)
2339 /* Is somebody trying to be evil! */
2341 (c
< 0x800 && term
->utf_size
>= 2) ||
2342 (c
< 0x10000 && term
->utf_size
>= 3) ||
2343 (c
< 0x200000 && term
->utf_size
>= 4) ||
2344 (c
< 0x4000000 && term
->utf_size
>= 5))
2347 /* Unicode line separator and paragraph separator are CR-LF */
2348 if (c
== 0x2028 || c
== 0x2029)
2351 /* High controls are probably a Baaad idea too. */
2355 /* The UTF-16 surrogates are not nice either. */
2356 /* The standard give the option of decoding these:
2357 * I don't want to! */
2358 if (c
>= 0xD800 && c
< 0xE000)
2361 /* ISO 10646 characters now limited to UTF-16 range. */
2365 /* This is currently a TagPhobic application.. */
2366 if (c
>= 0xE0000 && c
<= 0xE007F)
2369 /* U+FEFF is best seen as a null. */
2372 /* But U+FFFE is an error. */
2373 if (c
== 0xFFFE || c
== 0xFFFF)
2378 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2379 else if(term
->sco_acs
&&
2380 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2382 if (term
->sco_acs
== 2) c
|= 0x80;
2385 switch (term
->cset_attr
[term
->cset
]) {
2387 * Linedraw characters are different from 'ESC ( B'
2388 * only for a small range. For ones outside that
2389 * range, make sure we use the same font as well as
2390 * the same encoding.
2393 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2394 c
= term
->ucsdata
->unitab_ctrl
[c
];
2396 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2400 /* If UK-ASCII, make the '#' a LineDraw Pound */
2402 c
= '}' | CSET_LINEDRW
;
2405 /*FALLTHROUGH*/ case CSET_ASCII
:
2406 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2407 c
= term
->ucsdata
->unitab_ctrl
[c
];
2409 c
= ((unsigned char) c
) | CSET_ASCII
;
2412 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2418 /* How about C1 controls ? */
2419 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2420 !term
->vt52_mode
&& has_compat(VT220
)) {
2421 term
->termstate
= SEEN_ESC
;
2422 term
->esc_query
= FALSE
;
2423 c
= '@' + (c
& 0x1F);
2426 /* Or the GL control. */
2427 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2428 if (term
->curs
.x
&& !term
->wrapnext
)
2430 term
->wrapnext
= FALSE
;
2431 /* destructive backspace might be disabled */
2432 if (!term
->cfg
.no_dbackspace
) {
2433 copy_termchar(scrlineptr(term
->curs
.y
),
2434 term
->curs
.x
, &term
->erase_char
);
2437 /* Or normal C0 controls. */
2438 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2440 case '\005': /* ENQ: terminal type query */
2441 /* Strictly speaking this is VT100 but a VT100 defaults to
2442 * no response. Other terminals respond at their option.
2444 * Don't put a CR in the default string as this tends to
2445 * upset some weird software.
2447 * An xterm returns "xterm" (5 characters)
2449 compatibility(ANSIMIN
);
2451 char abuf
[256], *s
, *d
;
2453 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
2455 if (*s
>= 'a' && *s
<= 'z')
2456 *d
++ = (*s
- ('a' - 1));
2457 else if ((*s
>= '@' && *s
<= '_') ||
2458 *s
== '?' || (*s
& 0x80))
2463 } else if (*s
== '^') {
2468 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2472 case '\007': /* BEL: Bell */
2474 struct beeptime
*newbeep
;
2475 unsigned long ticks
;
2477 ticks
= GETTICKCOUNT();
2479 if (!term
->beep_overloaded
) {
2480 newbeep
= snew(struct beeptime
);
2481 newbeep
->ticks
= ticks
;
2482 newbeep
->next
= NULL
;
2483 if (!term
->beephead
)
2484 term
->beephead
= newbeep
;
2486 term
->beeptail
->next
= newbeep
;
2487 term
->beeptail
= newbeep
;
2492 * Throw out any beeps that happened more than
2495 while (term
->beephead
&&
2496 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2497 struct beeptime
*tmp
= term
->beephead
;
2498 term
->beephead
= tmp
->next
;
2500 if (!term
->beephead
)
2501 term
->beeptail
= NULL
;
2505 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2506 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2508 * If we're currently overloaded and the
2509 * last beep was more than s seconds ago,
2510 * leave overload mode.
2512 term
->beep_overloaded
= FALSE
;
2513 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2514 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2516 * Now, if we have n or more beeps
2517 * remaining in the queue, go into overload
2520 term
->beep_overloaded
= TRUE
;
2522 term
->lastbeep
= ticks
;
2525 * Perform an actual beep if we're not overloaded.
2527 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2528 beep(term
->frontend
, term
->cfg
.beep
);
2529 if (term
->cfg
.beep
== BELL_VISUAL
) {
2530 term
->in_vbell
= TRUE
;
2531 term
->vbell_startpoint
= ticks
;
2535 term
->seen_disp_event
= TRUE
;
2538 case '\b': /* BS: Back space */
2539 if (term
->curs
.x
== 0 &&
2540 (term
->curs
.y
== 0 || term
->wrap
== 0))
2542 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2543 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2544 else if (term
->wrapnext
)
2545 term
->wrapnext
= FALSE
;
2548 term
->seen_disp_event
= TRUE
;
2550 case '\016': /* LS1: Locking-shift one */
2551 compatibility(VT100
);
2554 case '\017': /* LS0: Locking-shift zero */
2555 compatibility(VT100
);
2558 case '\033': /* ESC: Escape */
2559 if (term
->vt52_mode
)
2560 term
->termstate
= VT52_ESC
;
2562 compatibility(ANSIMIN
);
2563 term
->termstate
= SEEN_ESC
;
2564 term
->esc_query
= FALSE
;
2567 case '\015': /* CR: Carriage return */
2569 term
->wrapnext
= FALSE
;
2570 term
->seen_disp_event
= TRUE
;
2571 term
->paste_hold
= 0;
2573 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2575 case '\014': /* FF: Form feed */
2576 if (has_compat(SCOANSI
)) {
2577 move(term
, 0, 0, 0);
2578 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2580 term
->wrapnext
= FALSE
;
2581 term
->seen_disp_event
= 1;
2584 case '\013': /* VT: Line tabulation */
2585 compatibility(VT100
);
2586 case '\012': /* LF: Line feed */
2587 if (term
->curs
.y
== term
->marg_b
)
2588 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2589 else if (term
->curs
.y
< term
->rows
- 1)
2591 if (term
->cfg
.lfhascr
)
2593 term
->wrapnext
= FALSE
;
2594 term
->seen_disp_event
= 1;
2595 term
->paste_hold
= 0;
2597 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2599 case '\t': /* HT: Character tabulation */
2601 pos old_curs
= term
->curs
;
2602 termline
*ldata
= scrlineptr(term
->curs
.y
);
2606 } while (term
->curs
.x
< term
->cols
- 1 &&
2607 !term
->tabs
[term
->curs
.x
]);
2609 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2610 if (term
->curs
.x
>= term
->cols
/ 2)
2611 term
->curs
.x
= term
->cols
/ 2 - 1;
2613 if (term
->curs
.x
>= term
->cols
)
2614 term
->curs
.x
= term
->cols
- 1;
2617 check_selection(term
, old_curs
, term
->curs
);
2619 term
->seen_disp_event
= TRUE
;
2623 switch (term
->termstate
) {
2625 /* Only graphic characters get this far;
2626 * ctrls are stripped above */
2628 termline
*cline
= scrlineptr(term
->curs
.y
);
2633 width
= wcwidth((wchar_t) c
);
2635 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2636 cline
->lattr
|= LATTR_WRAPPED
;
2637 if (term
->curs
.y
== term
->marg_b
)
2638 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2639 else if (term
->curs
.y
< term
->rows
- 1)
2642 term
->wrapnext
= FALSE
;
2644 if (term
->insert
&& width
> 0)
2646 if (term
->selstate
!= NO_SELECTION
) {
2647 pos cursplus
= term
->curs
;
2649 check_selection(term
, term
->curs
, cursplus
);
2651 if (((c
& CSET_MASK
) == CSET_ASCII
||
2652 (c
& CSET_MASK
) == 0) &&
2654 logtraffic(term
->logctx
, (unsigned char) c
,
2660 * If we're about to display a double-width
2661 * character starting in the rightmost
2662 * column, then we do something special
2663 * instead. We must print a space in the
2664 * last column of the screen, then wrap;
2665 * and we also set LATTR_WRAPPED2 which
2666 * instructs subsequent cut-and-pasting not
2667 * only to splice this line to the one
2668 * after it, but to ignore the space in the
2669 * last character position as well.
2670 * (Because what was actually output to the
2671 * terminal was presumably just a sequence
2672 * of CJK characters, and we don't want a
2673 * space to be pasted in the middle of
2674 * those just because they had the
2675 * misfortune to start in the wrong parity
2676 * column. xterm concurs.)
2678 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2679 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2680 if (term
->curs
.x
== term
->cols
-1) {
2681 copy_termchar(cline
, term
->curs
.x
,
2683 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2684 if (term
->curs
.y
== term
->marg_b
)
2685 scroll(term
, term
->marg_t
, term
->marg_b
,
2687 else if (term
->curs
.y
< term
->rows
- 1)
2690 /* Now we must check_boundary again, of course. */
2691 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2692 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2696 clear_cc(cline
, term
->curs
.x
);
2697 cline
->chars
[term
->curs
.x
].chr
= c
;
2698 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2703 clear_cc(cline
, term
->curs
.x
);
2704 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2705 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2709 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2710 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2713 clear_cc(cline
, term
->curs
.x
);
2714 cline
->chars
[term
->curs
.x
].chr
= c
;
2715 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2719 add_cc(cline
, term
->curs
.x
- !term
->wrapnext
, c
);
2720 term
->seen_disp_event
= 1;
2726 if (term
->curs
.x
== term
->cols
) {
2728 term
->wrapnext
= TRUE
;
2729 if (term
->wrap
&& term
->vt52_mode
) {
2730 cline
->lattr
|= LATTR_WRAPPED
;
2731 if (term
->curs
.y
== term
->marg_b
)
2732 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2733 else if (term
->curs
.y
< term
->rows
- 1)
2736 term
->wrapnext
= FALSE
;
2739 term
->seen_disp_event
= 1;
2745 * This state is virtually identical to SEEN_ESC, with the
2746 * exception that we have an OSC sequence in the pipeline,
2747 * and _if_ we see a backslash, we process it.
2751 term
->termstate
= TOPLEVEL
;
2754 /* else fall through */
2756 if (c
>= ' ' && c
<= '/') {
2757 if (term
->esc_query
)
2758 term
->esc_query
= -1;
2760 term
->esc_query
= c
;
2763 term
->termstate
= TOPLEVEL
;
2764 switch (ANSI(c
, term
->esc_query
)) {
2765 case '[': /* enter CSI mode */
2766 term
->termstate
= SEEN_CSI
;
2767 term
->esc_nargs
= 1;
2768 term
->esc_args
[0] = ARG_DEFAULT
;
2769 term
->esc_query
= FALSE
;
2771 case ']': /* OSC: xterm escape sequences */
2772 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
2773 compatibility(OTHER
);
2774 term
->termstate
= SEEN_OSC
;
2775 term
->esc_args
[0] = 0;
2777 case '7': /* DECSC: save cursor */
2778 compatibility(VT100
);
2779 save_cursor(term
, TRUE
);
2781 case '8': /* DECRC: restore cursor */
2782 compatibility(VT100
);
2783 save_cursor(term
, FALSE
);
2784 term
->seen_disp_event
= TRUE
;
2786 case '=': /* DECKPAM: Keypad application mode */
2787 compatibility(VT100
);
2788 term
->app_keypad_keys
= TRUE
;
2790 case '>': /* DECKPNM: Keypad numeric mode */
2791 compatibility(VT100
);
2792 term
->app_keypad_keys
= FALSE
;
2794 case 'D': /* IND: exactly equivalent to LF */
2795 compatibility(VT100
);
2796 if (term
->curs
.y
== term
->marg_b
)
2797 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2798 else if (term
->curs
.y
< term
->rows
- 1)
2800 term
->wrapnext
= FALSE
;
2801 term
->seen_disp_event
= TRUE
;
2803 case 'E': /* NEL: exactly equivalent to CR-LF */
2804 compatibility(VT100
);
2806 if (term
->curs
.y
== term
->marg_b
)
2807 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2808 else if (term
->curs
.y
< term
->rows
- 1)
2810 term
->wrapnext
= FALSE
;
2811 term
->seen_disp_event
= TRUE
;
2813 case 'M': /* RI: reverse index - backwards LF */
2814 compatibility(VT100
);
2815 if (term
->curs
.y
== term
->marg_t
)
2816 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
2817 else if (term
->curs
.y
> 0)
2819 term
->wrapnext
= FALSE
;
2820 term
->seen_disp_event
= TRUE
;
2822 case 'Z': /* DECID: terminal type query */
2823 compatibility(VT100
);
2825 ldisc_send(term
->ldisc
, term
->id_string
,
2826 strlen(term
->id_string
), 0);
2828 case 'c': /* RIS: restore power-on settings */
2829 compatibility(VT100
);
2831 if (term
->ldisc
) /* cause ldisc to notice changes */
2832 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2833 if (term
->reset_132
) {
2834 if (!term
->cfg
.no_remote_resize
)
2835 request_resize(term
->frontend
, 80, term
->rows
);
2836 term
->reset_132
= 0;
2839 term
->seen_disp_event
= TRUE
;
2841 case 'H': /* HTS: set a tab */
2842 compatibility(VT100
);
2843 term
->tabs
[term
->curs
.x
] = TRUE
;
2846 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
2847 compatibility(VT100
);
2853 for (i
= 0; i
< term
->rows
; i
++) {
2854 ldata
= scrlineptr(i
);
2855 for (j
= 0; j
< term
->cols
; j
++) {
2856 copy_termchar(ldata
, j
,
2857 &term
->basic_erase_char
);
2858 ldata
->chars
[j
].chr
= 'E';
2860 ldata
->lattr
= LATTR_NORM
;
2863 term
->seen_disp_event
= TRUE
;
2864 scrtop
.x
= scrtop
.y
= 0;
2866 scrbot
.y
= term
->rows
;
2867 check_selection(term
, scrtop
, scrbot
);
2871 case ANSI('3', '#'):
2872 case ANSI('4', '#'):
2873 case ANSI('5', '#'):
2874 case ANSI('6', '#'):
2875 compatibility(VT100
);
2879 switch (ANSI(c
, term
->esc_query
)) {
2880 case ANSI('3', '#'): /* DECDHL: 2*height, top */
2883 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
2886 case ANSI('5', '#'): /* DECSWL: normal */
2887 nlattr
= LATTR_NORM
;
2889 default: /* case ANSI('6', '#'): DECDWL: 2*width */
2890 nlattr
= LATTR_WIDE
;
2893 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
2896 /* GZD4: G0 designate 94-set */
2897 case ANSI('A', '('):
2898 compatibility(VT100
);
2899 if (!term
->cfg
.no_remote_charset
)
2900 term
->cset_attr
[0] = CSET_GBCHR
;
2902 case ANSI('B', '('):
2903 compatibility(VT100
);
2904 if (!term
->cfg
.no_remote_charset
)
2905 term
->cset_attr
[0] = CSET_ASCII
;
2907 case ANSI('0', '('):
2908 compatibility(VT100
);
2909 if (!term
->cfg
.no_remote_charset
)
2910 term
->cset_attr
[0] = CSET_LINEDRW
;
2912 case ANSI('U', '('):
2913 compatibility(OTHER
);
2914 if (!term
->cfg
.no_remote_charset
)
2915 term
->cset_attr
[0] = CSET_SCOACS
;
2917 /* G1D4: G1-designate 94-set */
2918 case ANSI('A', ')'):
2919 compatibility(VT100
);
2920 if (!term
->cfg
.no_remote_charset
)
2921 term
->cset_attr
[1] = CSET_GBCHR
;
2923 case ANSI('B', ')'):
2924 compatibility(VT100
);
2925 if (!term
->cfg
.no_remote_charset
)
2926 term
->cset_attr
[1] = CSET_ASCII
;
2928 case ANSI('0', ')'):
2929 compatibility(VT100
);
2930 if (!term
->cfg
.no_remote_charset
)
2931 term
->cset_attr
[1] = CSET_LINEDRW
;
2933 case ANSI('U', ')'):
2934 compatibility(OTHER
);
2935 if (!term
->cfg
.no_remote_charset
)
2936 term
->cset_attr
[1] = CSET_SCOACS
;
2938 /* DOCS: Designate other coding system */
2939 case ANSI('8', '%'): /* Old Linux code */
2940 case ANSI('G', '%'):
2941 compatibility(OTHER
);
2942 if (!term
->cfg
.no_remote_charset
)
2945 case ANSI('@', '%'):
2946 compatibility(OTHER
);
2947 if (!term
->cfg
.no_remote_charset
)
2953 term
->termstate
= TOPLEVEL
; /* default */
2955 if (term
->esc_nargs
<= ARGS_MAX
) {
2956 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
2957 term
->esc_args
[term
->esc_nargs
- 1] = 0;
2958 term
->esc_args
[term
->esc_nargs
- 1] =
2959 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
2961 term
->termstate
= SEEN_CSI
;
2962 } else if (c
== ';') {
2963 if (++term
->esc_nargs
<= ARGS_MAX
)
2964 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
2965 term
->termstate
= SEEN_CSI
;
2966 } else if (c
< '@') {
2967 if (term
->esc_query
)
2968 term
->esc_query
= -1;
2970 term
->esc_query
= TRUE
;
2972 term
->esc_query
= c
;
2973 term
->termstate
= SEEN_CSI
;
2975 switch (ANSI(c
, term
->esc_query
)) {
2976 case 'A': /* CUU: move up N lines */
2977 move(term
, term
->curs
.x
,
2978 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2979 term
->seen_disp_event
= TRUE
;
2981 case 'e': /* VPR: move down N lines */
2982 compatibility(ANSI
);
2984 case 'B': /* CUD: Cursor down */
2985 move(term
, term
->curs
.x
,
2986 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2987 term
->seen_disp_event
= TRUE
;
2989 case ANSI('c', '>'): /* DA: report xterm version */
2990 compatibility(OTHER
);
2991 /* this reports xterm version 136 so that VIM can
2992 use the drag messages from the mouse reporting */
2994 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
2996 case 'a': /* HPR: move right N cols */
2997 compatibility(ANSI
);
2999 case 'C': /* CUF: Cursor right */
3000 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3002 term
->seen_disp_event
= TRUE
;
3004 case 'D': /* CUB: move left N cols */
3005 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3007 term
->seen_disp_event
= TRUE
;
3009 case 'E': /* CNL: move down N lines and CR */
3010 compatibility(ANSI
);
3012 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3013 term
->seen_disp_event
= TRUE
;
3015 case 'F': /* CPL: move up N lines and CR */
3016 compatibility(ANSI
);
3018 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3019 term
->seen_disp_event
= TRUE
;
3022 case '`': /* HPA: set horizontal posn */
3023 compatibility(ANSI
);
3024 move(term
, def(term
->esc_args
[0], 1) - 1,
3026 term
->seen_disp_event
= TRUE
;
3028 case 'd': /* VPA: set vertical posn */
3029 compatibility(ANSI
);
3030 move(term
, term
->curs
.x
,
3031 ((term
->dec_om ? term
->marg_t
: 0) +
3032 def(term
->esc_args
[0], 1) - 1),
3033 (term
->dec_om ?
2 : 0));
3034 term
->seen_disp_event
= TRUE
;
3037 case 'f': /* HVP: set horz and vert posns at once */
3038 if (term
->esc_nargs
< 2)
3039 term
->esc_args
[1] = ARG_DEFAULT
;
3040 move(term
, def(term
->esc_args
[1], 1) - 1,
3041 ((term
->dec_om ? term
->marg_t
: 0) +
3042 def(term
->esc_args
[0], 1) - 1),
3043 (term
->dec_om ?
2 : 0));
3044 term
->seen_disp_event
= TRUE
;
3046 case 'J': /* ED: erase screen or parts of it */
3048 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3051 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3054 term
->seen_disp_event
= TRUE
;
3056 case 'K': /* EL: erase line or parts of it */
3058 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3061 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3063 term
->seen_disp_event
= TRUE
;
3065 case 'L': /* IL: insert lines */
3066 compatibility(VT102
);
3067 if (term
->curs
.y
<= term
->marg_b
)
3068 scroll(term
, term
->curs
.y
, term
->marg_b
,
3069 -def(term
->esc_args
[0], 1), FALSE
);
3070 term
->seen_disp_event
= TRUE
;
3072 case 'M': /* DL: delete lines */
3073 compatibility(VT102
);
3074 if (term
->curs
.y
<= term
->marg_b
)
3075 scroll(term
, term
->curs
.y
, term
->marg_b
,
3076 def(term
->esc_args
[0], 1),
3078 term
->seen_disp_event
= TRUE
;
3080 case '@': /* ICH: insert chars */
3081 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3082 compatibility(VT102
);
3083 insch(term
, def(term
->esc_args
[0], 1));
3084 term
->seen_disp_event
= TRUE
;
3086 case 'P': /* DCH: delete chars */
3087 compatibility(VT102
);
3088 insch(term
, -def(term
->esc_args
[0], 1));
3089 term
->seen_disp_event
= TRUE
;
3091 case 'c': /* DA: terminal type query */
3092 compatibility(VT100
);
3093 /* This is the response for a VT102 */
3095 ldisc_send(term
->ldisc
, term
->id_string
,
3096 strlen(term
->id_string
), 0);
3098 case 'n': /* DSR: cursor position query */
3100 if (term
->esc_args
[0] == 6) {
3102 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3104 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3105 } else if (term
->esc_args
[0] == 5) {
3106 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3110 case 'h': /* SM: toggle modes to high */
3112 compatibility(VT100
);
3115 for (i
= 0; i
< term
->esc_nargs
; i
++)
3116 toggle_mode(term
, term
->esc_args
[i
],
3117 term
->esc_query
, TRUE
);
3120 case 'i': /* MC: Media copy */
3122 compatibility(VT100
);
3124 if (term
->esc_nargs
!= 1) break;
3125 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3126 term
->printing
= TRUE
;
3127 term
->only_printing
= !term
->esc_query
;
3128 term
->print_state
= 0;
3129 term_print_setup(term
);
3130 } else if (term
->esc_args
[0] == 4 &&
3132 term_print_finish(term
);
3136 case 'l': /* RM: toggle modes to low */
3138 compatibility(VT100
);
3141 for (i
= 0; i
< term
->esc_nargs
; i
++)
3142 toggle_mode(term
, term
->esc_args
[i
],
3143 term
->esc_query
, FALSE
);
3146 case 'g': /* TBC: clear tabs */
3147 compatibility(VT100
);
3148 if (term
->esc_nargs
== 1) {
3149 if (term
->esc_args
[0] == 0) {
3150 term
->tabs
[term
->curs
.x
] = FALSE
;
3151 } else if (term
->esc_args
[0] == 3) {
3153 for (i
= 0; i
< term
->cols
; i
++)
3154 term
->tabs
[i
] = FALSE
;
3158 case 'r': /* DECSTBM: set scroll margins */
3159 compatibility(VT100
);
3160 if (term
->esc_nargs
<= 2) {
3162 top
= def(term
->esc_args
[0], 1) - 1;
3163 bot
= (term
->esc_nargs
<= 1
3164 || term
->esc_args
[1] == 0 ?
3166 def(term
->esc_args
[1], term
->rows
)) - 1;
3167 if (bot
>= term
->rows
)
3168 bot
= term
->rows
- 1;
3169 /* VTTEST Bug 9 - if region is less than 2 lines
3170 * don't change region.
3172 if (bot
- top
> 0) {
3177 * I used to think the cursor should be
3178 * placed at the top of the newly marginned
3179 * area. Apparently not: VMS TPU falls over
3182 * Well actually it should for
3185 term
->curs
.y
= (term
->dec_om ?
3187 term
->seen_disp_event
= TRUE
;
3191 case 'm': /* SGR: set graphics rendition */
3194 * A VT100 without the AVO only had one
3195 * attribute, either underline or
3196 * reverse video depending on the
3197 * cursor type, this was selected by
3201 * This is sometimes DIM, eg on the
3204 * This is sometimes INVIS various ANSI.
3206 * This like 22 disables BOLD, DIM and INVIS
3208 * The ANSI colours appear on any
3209 * terminal that has colour (obviously)
3210 * but the interaction between sgr0 and
3211 * the colours varies but is usually
3212 * related to the background colour
3213 * erase item. The interaction between
3214 * colour attributes and the mono ones
3215 * is also very implementation
3218 * The 39 and 49 attributes are likely
3219 * to be unimplemented.
3222 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3223 switch (def(term
->esc_args
[i
], 0)) {
3224 case 0: /* restore defaults */
3225 term
->curr_attr
= term
->default_attr
;
3227 case 1: /* enable bold */
3228 compatibility(VT100AVO
);
3229 term
->curr_attr
|= ATTR_BOLD
;
3231 case 21: /* (enable double underline) */
3232 compatibility(OTHER
);
3233 case 4: /* enable underline */
3234 compatibility(VT100AVO
);
3235 term
->curr_attr
|= ATTR_UNDER
;
3237 case 5: /* enable blink */
3238 compatibility(VT100AVO
);
3239 term
->curr_attr
|= ATTR_BLINK
;
3241 case 6: /* SCO light bkgrd */
3242 compatibility(SCOANSI
);
3243 term
->blink_is_real
= FALSE
;
3244 term
->curr_attr
|= ATTR_BLINK
;
3246 case 7: /* enable reverse video */
3247 term
->curr_attr
|= ATTR_REVERSE
;
3249 case 10: /* SCO acs off */
3250 compatibility(SCOANSI
);
3251 if (term
->cfg
.no_remote_charset
) break;
3252 term
->sco_acs
= 0; break;
3253 case 11: /* SCO acs on */
3254 compatibility(SCOANSI
);
3255 if (term
->cfg
.no_remote_charset
) break;
3256 term
->sco_acs
= 1; break;
3257 case 12: /* SCO acs on, |0x80 */
3258 compatibility(SCOANSI
);
3259 if (term
->cfg
.no_remote_charset
) break;
3260 term
->sco_acs
= 2; break;
3261 case 22: /* disable bold */
3262 compatibility2(OTHER
, VT220
);
3263 term
->curr_attr
&= ~ATTR_BOLD
;
3265 case 24: /* disable underline */
3266 compatibility2(OTHER
, VT220
);
3267 term
->curr_attr
&= ~ATTR_UNDER
;
3269 case 25: /* disable blink */
3270 compatibility2(OTHER
, VT220
);
3271 term
->curr_attr
&= ~ATTR_BLINK
;
3273 case 27: /* disable reverse video */
3274 compatibility2(OTHER
, VT220
);
3275 term
->curr_attr
&= ~ATTR_REVERSE
;
3286 term
->curr_attr
&= ~ATTR_FGMASK
;
3288 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3298 /* xterm-style bright foreground */
3299 term
->curr_attr
&= ~ATTR_FGMASK
;
3301 ((term
->esc_args
[i
] - 90 + 16)
3304 case 39: /* default-foreground */
3305 term
->curr_attr
&= ~ATTR_FGMASK
;
3306 term
->curr_attr
|= ATTR_DEFFG
;
3317 term
->curr_attr
&= ~ATTR_BGMASK
;
3319 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3329 /* xterm-style bright background */
3330 term
->curr_attr
&= ~ATTR_BGMASK
;
3332 ((term
->esc_args
[i
] - 100 + 16)
3335 case 49: /* default-background */
3336 term
->curr_attr
&= ~ATTR_BGMASK
;
3337 term
->curr_attr
|= ATTR_DEFBG
;
3341 set_erase_char(term
);
3344 case 's': /* save cursor */
3345 save_cursor(term
, TRUE
);
3347 case 'u': /* restore cursor */
3348 save_cursor(term
, FALSE
);
3349 term
->seen_disp_event
= TRUE
;
3351 case 't': /* DECSLPP: set page size - ie window height */
3353 * VT340/VT420 sequence DECSLPP, DEC only allows values
3354 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3355 * illegal values (eg first arg 1..9) for window changing
3358 if (term
->esc_nargs
<= 1
3359 && (term
->esc_args
[0] < 1 ||
3360 term
->esc_args
[0] >= 24)) {
3361 compatibility(VT340TEXT
);
3362 if (!term
->cfg
.no_remote_resize
)
3363 request_resize(term
->frontend
, term
->cols
,
3364 def(term
->esc_args
[0], 24));
3366 } else if (term
->esc_nargs
>= 1 &&
3367 term
->esc_args
[0] >= 1 &&
3368 term
->esc_args
[0] < 24) {
3369 compatibility(OTHER
);
3371 switch (term
->esc_args
[0]) {
3375 set_iconic(term
->frontend
, FALSE
);
3378 set_iconic(term
->frontend
, TRUE
);
3381 if (term
->esc_nargs
>= 3) {
3382 if (!term
->cfg
.no_remote_resize
)
3383 move_window(term
->frontend
,
3384 def(term
->esc_args
[1], 0),
3385 def(term
->esc_args
[2], 0));
3389 /* We should resize the window to a given
3390 * size in pixels here, but currently our
3391 * resizing code isn't healthy enough to
3396 set_zorder(term
->frontend
, TRUE
);
3399 /* move to bottom */
3400 set_zorder(term
->frontend
, FALSE
);
3403 refresh_window(term
->frontend
);
3406 if (term
->esc_nargs
>= 3) {
3407 if (!term
->cfg
.no_remote_resize
)
3408 request_resize(term
->frontend
,
3409 def(term
->esc_args
[2], term
->cfg
.width
),
3410 def(term
->esc_args
[1], term
->cfg
.height
));
3414 if (term
->esc_nargs
>= 2)
3415 set_zoomed(term
->frontend
,
3421 ldisc_send(term
->ldisc
,
3422 is_iconic(term
->frontend
) ?
3423 "\033[1t" : "\033[2t", 4, 0);
3427 get_window_pos(term
->frontend
, &x
, &y
);
3428 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3429 ldisc_send(term
->ldisc
, buf
, len
, 0);
3434 get_window_pixels(term
->frontend
, &x
, &y
);
3435 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3436 ldisc_send(term
->ldisc
, buf
, len
, 0);
3441 len
= sprintf(buf
, "\033[8;%d;%dt",
3442 term
->rows
, term
->cols
);
3443 ldisc_send(term
->ldisc
, buf
, len
, 0);
3448 * Hmmm. Strictly speaking we
3449 * should return `the size of the
3450 * screen in characters', but
3451 * that's not easy: (a) window
3452 * furniture being what it is it's
3453 * hard to compute, and (b) in
3454 * resize-font mode maximising the
3455 * window wouldn't change the
3456 * number of characters. *shrug*. I
3457 * think we'll ignore it for the
3458 * moment and see if anyone
3459 * complains, and then ask them
3460 * what they would like it to do.
3465 !term
->cfg
.no_remote_qtitle
) {
3466 p
= get_window_title(term
->frontend
, TRUE
);
3468 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3469 ldisc_send(term
->ldisc
, p
, len
, 0);
3470 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3475 !term
->cfg
.no_remote_qtitle
) {
3476 p
= get_window_title(term
->frontend
,FALSE
);
3478 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3479 ldisc_send(term
->ldisc
, p
, len
, 0);
3480 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3486 case 'S': /* SU: Scroll up */
3487 compatibility(SCOANSI
);
3488 scroll(term
, term
->marg_t
, term
->marg_b
,
3489 def(term
->esc_args
[0], 1), TRUE
);
3490 term
->wrapnext
= FALSE
;
3491 term
->seen_disp_event
= TRUE
;
3493 case 'T': /* SD: Scroll down */
3494 compatibility(SCOANSI
);
3495 scroll(term
, term
->marg_t
, term
->marg_b
,
3496 -def(term
->esc_args
[0], 1), TRUE
);
3497 term
->wrapnext
= FALSE
;
3498 term
->seen_disp_event
= TRUE
;
3500 case ANSI('|', '*'): /* DECSNLS */
3502 * Set number of lines on screen
3503 * VT420 uses VGA like hardware and can
3504 * support any size in reasonable range
3505 * (24..49 AIUI) with no default specified.
3507 compatibility(VT420
);
3508 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3509 if (!term
->cfg
.no_remote_resize
)
3510 request_resize(term
->frontend
, term
->cols
,
3511 def(term
->esc_args
[0],
3516 case ANSI('|', '$'): /* DECSCPP */
3518 * Set number of columns per page
3519 * Docs imply range is only 80 or 132, but
3522 compatibility(VT340TEXT
);
3523 if (term
->esc_nargs
<= 1) {
3524 if (!term
->cfg
.no_remote_resize
)
3525 request_resize(term
->frontend
,
3526 def(term
->esc_args
[0],
3527 term
->cfg
.width
), term
->rows
);
3531 case 'X': /* ECH: write N spaces w/o moving cursor */
3532 /* XXX VTTEST says this is vt220, vt510 manual
3534 compatibility(ANSIMIN
);
3536 int n
= def(term
->esc_args
[0], 1);
3538 int p
= term
->curs
.x
;
3539 termline
*cline
= scrlineptr(term
->curs
.y
);
3541 if (n
> term
->cols
- term
->curs
.x
)
3542 n
= term
->cols
- term
->curs
.x
;
3543 cursplus
= term
->curs
;
3545 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3546 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3547 check_selection(term
, term
->curs
, cursplus
);
3549 copy_termchar(cline
, p
++,
3551 term
->seen_disp_event
= TRUE
;
3554 case 'x': /* DECREQTPARM: report terminal characteristics */
3555 compatibility(VT100
);
3558 int i
= def(term
->esc_args
[0], 0);
3559 if (i
== 0 || i
== 1) {
3560 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3562 ldisc_send(term
->ldisc
, buf
, 20, 0);
3566 case 'Z': /* CBT: BackTab for xterm */
3567 compatibility(OTHER
);
3569 int i
= def(term
->esc_args
[0], 1);
3570 pos old_curs
= term
->curs
;
3572 for(;i
>0 && term
->curs
.x
>0; i
--) {
3575 } while (term
->curs
.x
>0 &&
3576 !term
->tabs
[term
->curs
.x
]);
3578 check_selection(term
, old_curs
, term
->curs
);
3581 case ANSI('c', '='): /* Hide or Show Cursor */
3582 compatibility(SCOANSI
);
3583 switch(term
->esc_args
[0]) {
3584 case 0: /* hide cursor */
3585 term
->cursor_on
= FALSE
;
3587 case 1: /* restore cursor */
3588 term
->big_cursor
= FALSE
;
3589 term
->cursor_on
= TRUE
;
3591 case 2: /* block cursor */
3592 term
->big_cursor
= TRUE
;
3593 term
->cursor_on
= TRUE
;
3597 case ANSI('C', '='):
3599 * set cursor start on scanline esc_args[0] and
3600 * end on scanline esc_args[1].If you set
3601 * the bottom scan line to a value less than
3602 * the top scan line, the cursor will disappear.
3604 compatibility(SCOANSI
);
3605 if (term
->esc_nargs
>= 2) {
3606 if (term
->esc_args
[0] > term
->esc_args
[1])
3607 term
->cursor_on
= FALSE
;
3609 term
->cursor_on
= TRUE
;
3612 case ANSI('D', '='):
3613 compatibility(SCOANSI
);
3614 term
->blink_is_real
= FALSE
;
3615 if (term
->esc_args
[0]>=1)
3616 term
->curr_attr
|= ATTR_BLINK
;
3618 term
->curr_attr
&= ~ATTR_BLINK
;
3620 case ANSI('E', '='):
3621 compatibility(SCOANSI
);
3622 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3624 case ANSI('F', '='): /* set normal foreground */
3625 compatibility(SCOANSI
);
3626 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3628 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3629 ((term
->esc_args
[0] & 0x8) << 1)) <<
3631 term
->curr_attr
&= ~ATTR_FGMASK
;
3632 term
->curr_attr
|= colour
;
3633 term
->default_attr
&= ~ATTR_FGMASK
;
3634 term
->default_attr
|= colour
;
3637 case ANSI('G', '='): /* set normal background */
3638 compatibility(SCOANSI
);
3639 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3641 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3642 ((term
->esc_args
[0] & 0x8) << 1)) <<
3644 term
->curr_attr
&= ~ATTR_BGMASK
;
3645 term
->curr_attr
|= colour
;
3646 term
->default_attr
&= ~ATTR_BGMASK
;
3647 term
->default_attr
|= colour
;
3650 case ANSI('L', '='):
3651 compatibility(SCOANSI
);
3652 term
->use_bce
= (term
->esc_args
[0] <= 0);
3653 set_erase_char(term
);
3655 case ANSI('p', '"'): /* DECSCL: set compat level */
3657 * Allow the host to make this emulator a
3658 * 'perfect' VT102. This first appeared in
3659 * the VT220, but we do need to get back to
3660 * PuTTY mode so I won't check it.
3662 * The arg in 40..42,50 are a PuTTY extension.
3663 * The 2nd arg, 8bit vs 7bit is not checked.
3665 * Setting VT102 mode should also change
3666 * the Fkeys to generate PF* codes as a
3667 * real VT102 has no Fkeys. The VT220 does
3668 * this, F11..F13 become ESC,BS,LF other
3669 * Fkeys send nothing.
3671 * Note ESC c will NOT change this!
3674 switch (term
->esc_args
[0]) {
3676 term
->compatibility_level
&= ~TM_VTXXX
;
3677 term
->compatibility_level
|= TM_VT102
;
3680 term
->compatibility_level
&= ~TM_VTXXX
;
3681 term
->compatibility_level
|= TM_VT220
;
3685 if (term
->esc_args
[0] > 60 &&
3686 term
->esc_args
[0] < 70)
3687 term
->compatibility_level
|= TM_VTXXX
;
3691 term
->compatibility_level
&= TM_VTXXX
;
3694 term
->compatibility_level
= TM_PUTTY
;
3697 term
->compatibility_level
= TM_SCOANSI
;
3701 term
->compatibility_level
= TM_PUTTY
;
3707 /* Change the response to CSI c */
3708 if (term
->esc_args
[0] == 50) {
3711 strcpy(term
->id_string
, "\033[?");
3712 for (i
= 1; i
< term
->esc_nargs
; i
++) {
3714 strcat(term
->id_string
, ";");
3715 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
3716 strcat(term
->id_string
, lbuf
);
3718 strcat(term
->id_string
, "c");
3721 /* Is this a good idea ?
3722 * Well we should do a soft reset at this point ...
3724 if (!has_compat(VT420
) && has_compat(VT100
)) {
3725 if (!term
->cfg
.no_remote_resize
) {
3726 if (term
->reset_132
)
3727 request_resize(132, 24);
3729 request_resize(80, 24);
3737 term
->osc_w
= FALSE
;
3739 case 'P': /* Linux palette sequence */
3740 term
->termstate
= SEEN_OSC_P
;
3741 term
->osc_strlen
= 0;
3743 case 'R': /* Linux palette reset */
3744 palette_reset(term
->frontend
);
3745 term_invalidate(term
);
3746 term
->termstate
= TOPLEVEL
;
3748 case 'W': /* word-set */
3749 term
->termstate
= SEEN_OSC_W
;
3762 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3766 * Grotty hack to support xterm and DECterm title
3767 * sequences concurrently.
3769 if (term
->esc_args
[0] == 2) {
3770 term
->esc_args
[0] = 1;
3773 /* else fall through */
3775 term
->termstate
= OSC_STRING
;
3776 term
->osc_strlen
= 0;
3781 * This OSC stuff is EVIL. It takes just one character to get into
3782 * sysline mode and it's not initially obvious how to get out.
3783 * So I've added CR and LF as string aborts.
3784 * This shouldn't effect compatibility as I believe embedded
3785 * control characters are supposed to be interpreted (maybe?)
3786 * and they don't display anything useful anyway.
3790 if (c
== '\012' || c
== '\015') {
3791 term
->termstate
= TOPLEVEL
;
3792 } else if (c
== 0234 || c
== '\007') {
3794 * These characters terminate the string; ST and BEL
3795 * terminate the sequence and trigger instant
3796 * processing of it, whereas ESC goes back to SEEN_ESC
3797 * mode unless it is followed by \, in which case it is
3798 * synonymous with ST in the first place.
3801 term
->termstate
= TOPLEVEL
;
3802 } else if (c
== '\033')
3803 term
->termstate
= OSC_MAYBE_ST
;
3804 else if (term
->osc_strlen
< OSC_STR_MAX
)
3805 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
3809 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
3811 if ((int)c
>= '0' && (int)c
<= '9')
3813 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
3815 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
3818 term
->termstate
= TOPLEVEL
;
3821 term
->osc_string
[term
->osc_strlen
++] = val
;
3822 if (term
->osc_strlen
>= 7) {
3823 palette_set(term
->frontend
, term
->osc_string
[0],
3824 term
->osc_string
[1] * 16 + term
->osc_string
[2],
3825 term
->osc_string
[3] * 16 + term
->osc_string
[4],
3826 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
3827 term_invalidate(term
);
3828 term
->termstate
= TOPLEVEL
;
3844 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3847 term
->termstate
= OSC_STRING
;
3848 term
->osc_strlen
= 0;
3852 term
->termstate
= TOPLEVEL
;
3853 term
->seen_disp_event
= TRUE
;
3856 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
3859 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
3862 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
3865 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
3868 * From the VT100 Manual
3869 * NOTE: The special graphics characters in the VT100
3870 * are different from those in the VT52
3872 * From VT102 manual:
3873 * 137 _ Blank - Same
3874 * 140 ` Reserved - Humm.
3875 * 141 a Solid rectangle - Similar
3876 * 142 b 1/ - Top half of fraction for the
3877 * 143 c 3/ - subscript numbers below.
3880 * 146 f Degrees - Same
3881 * 147 g Plus or minus - Same
3883 * 151 i Ellipsis (dots)
3886 * 154 l Bar at scan 0
3887 * 155 m Bar at scan 1
3888 * 156 n Bar at scan 2
3889 * 157 o Bar at scan 3 - Similar
3890 * 160 p Bar at scan 4 - Similar
3891 * 161 q Bar at scan 5 - Similar
3892 * 162 r Bar at scan 6 - Same
3893 * 163 s Bar at scan 7 - Similar
3908 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
3911 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
3914 move(term
, 0, 0, 0);
3917 if (term
->curs
.y
== 0)
3918 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
3919 else if (term
->curs
.y
> 0)
3921 term
->wrapnext
= FALSE
;
3924 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3928 erase_lots(term
, TRUE
, FALSE
, TRUE
);
3932 /* XXX Print cursor line */
3935 /* XXX Start controller mode */
3938 /* XXX Stop controller mode */
3942 term
->termstate
= VT52_Y1
;
3946 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
3949 term
->app_keypad_keys
= TRUE
;
3952 term
->app_keypad_keys
= FALSE
;
3955 /* XXX This should switch to VT100 mode not current or default
3956 * VT mode. But this will only have effect in a VT220+
3959 term
->vt52_mode
= FALSE
;
3960 term
->blink_is_real
= term
->cfg
.blinktext
;
3964 /* XXX Enter auto print mode */
3967 /* XXX Exit auto print mode */
3970 /* XXX Print screen */
3976 /* compatibility(ATARI) */
3977 move(term
, 0, 0, 0);
3978 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3982 /* compatibility(ATARI) */
3983 if (term
->curs
.y
<= term
->marg_b
)
3984 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
3987 /* compatibility(ATARI) */
3988 if (term
->curs
.y
<= term
->marg_b
)
3989 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
3992 /* compatibility(ATARI) */
3993 term
->termstate
= VT52_FG
;
3996 /* compatibility(ATARI) */
3997 term
->termstate
= VT52_BG
;
4000 /* compatibility(ATARI) */
4001 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4005 /* compatibility(ATARI) */
4006 term
->cursor_on
= TRUE
;
4009 /* compatibility(ATARI) */
4010 term
->cursor_on
= FALSE
;
4012 /* case 'j': Save cursor position - broken on ST */
4013 /* case 'k': Restore cursor position */
4015 /* compatibility(ATARI) */
4016 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4018 term
->wrapnext
= FALSE
;
4021 /* compatibility(ATARI) */
4022 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4025 /* compatibility(ATARI) */
4026 term
->curr_attr
|= ATTR_REVERSE
;
4029 /* compatibility(ATARI) */
4030 term
->curr_attr
&= ~ATTR_REVERSE
;
4032 case 'v': /* wrap Autowrap on - Wyse style */
4033 /* compatibility(ATARI) */
4036 case 'w': /* Autowrap off */
4037 /* compatibility(ATARI) */
4042 /* compatibility(OTHER) */
4043 term
->vt52_bold
= FALSE
;
4044 term
->curr_attr
= ATTR_DEFAULT
;
4045 set_erase_char(term
);
4048 /* compatibility(VI50) */
4049 term
->curr_attr
|= ATTR_UNDER
;
4052 /* compatibility(VI50) */
4053 term
->curr_attr
&= ~ATTR_UNDER
;
4056 /* compatibility(VI50) */
4057 term
->vt52_bold
= TRUE
;
4058 term
->curr_attr
|= ATTR_BOLD
;
4061 /* compatibility(VI50) */
4062 term
->vt52_bold
= FALSE
;
4063 term
->curr_attr
&= ~ATTR_BOLD
;
4069 term
->termstate
= VT52_Y2
;
4070 move(term
, term
->curs
.x
, c
- ' ', 0);
4073 term
->termstate
= TOPLEVEL
;
4074 move(term
, c
- ' ', term
->curs
.y
, 0);
4079 term
->termstate
= TOPLEVEL
;
4080 term
->curr_attr
&= ~ATTR_FGMASK
;
4081 term
->curr_attr
&= ~ATTR_BOLD
;
4082 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
4083 if ((c
& 0x8) || term
->vt52_bold
)
4084 term
->curr_attr
|= ATTR_BOLD
;
4086 set_erase_char(term
);
4089 term
->termstate
= TOPLEVEL
;
4090 term
->curr_attr
&= ~ATTR_BGMASK
;
4091 term
->curr_attr
&= ~ATTR_BLINK
;
4092 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
4094 /* Note: bold background */
4096 term
->curr_attr
|= ATTR_BLINK
;
4098 set_erase_char(term
);
4101 default: break; /* placate gcc warning about enum use */
4103 if (term
->selstate
!= NO_SELECTION
) {
4104 pos cursplus
= term
->curs
;
4106 check_selection(term
, term
->curs
, cursplus
);
4110 term_print_flush(term
);
4111 logflush(term
->logctx
);
4115 * To prevent having to run the reasonably tricky bidi algorithm
4116 * too many times, we maintain a cache of the last lineful of data
4117 * fed to the algorithm on each line of the display.
4119 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4120 termchar
*lbefore
, int width
)
4124 if (!term
->pre_bidi_cache
)
4125 return FALSE
; /* cache doesn't even exist yet! */
4127 if (line
>= term
->bidi_cache_size
)
4128 return FALSE
; /* cache doesn't have this many lines */
4130 if (!term
->pre_bidi_cache
[line
])
4131 return FALSE
; /* cache doesn't contain _this_ line */
4133 for (i
= 0; i
< width
; i
++)
4134 if (!termchars_equal(term
->pre_bidi_cache
[line
] + i
, lbefore
+ i
))
4135 return FALSE
; /* line doesn't match cache */
4137 return TRUE
; /* it didn't match. */
4140 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4141 termchar
*lafter
, int width
)
4143 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4144 int j
= term
->bidi_cache_size
;
4145 term
->bidi_cache_size
= line
+1;
4146 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4147 term
->bidi_cache_size
,
4149 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4150 term
->bidi_cache_size
,
4152 while (j
< term
->bidi_cache_size
) {
4153 term
->pre_bidi_cache
[j
] = term
->post_bidi_cache
[j
] = NULL
;
4158 sfree(term
->pre_bidi_cache
[line
]);
4159 sfree(term
->post_bidi_cache
[line
]);
4161 term
->pre_bidi_cache
[line
] = snewn(width
, termchar
);
4162 term
->post_bidi_cache
[line
] = snewn(width
, termchar
);
4164 memcpy(term
->pre_bidi_cache
[line
], lbefore
, width
* TSIZE
);
4165 memcpy(term
->post_bidi_cache
[line
], lafter
, width
* TSIZE
);
4169 * Given a context, update the window. Out of paranoia, we don't
4170 * allow WM_PAINT responses to do scrolling optimisations.
4172 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4174 int i
, it
, j
, our_curs_y
, our_curs_x
;
4179 termchar cursor_background
;
4180 unsigned long ticks
;
4181 #ifdef OPTIMISE_SCROLL
4182 struct scrollregion
*sr
;
4183 #endif /* OPTIMISE_SCROLL */
4185 cursor_background
= term
->basic_erase_char
;
4188 ch
= snewn(chlen
, wchar_t);
4191 * Check the visual bell state.
4193 if (term
->in_vbell
) {
4194 ticks
= GETTICKCOUNT();
4195 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
4196 term
->in_vbell
= FALSE
;
4199 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4202 * screen array, disptop, scrtop,
4204 * cfg.blinkpc, blink_is_real, tblinker,
4205 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4208 /* Has the cursor position or type changed ? */
4209 if (term
->cursor_on
) {
4210 if (term
->has_focus
) {
4211 if (term
->blinker
|| !term
->cfg
.blink_cur
)
4212 cursor
= TATTR_ACTCURS
;
4216 cursor
= TATTR_PASCURS
;
4218 cursor
|= TATTR_RIGHTCURS
;
4221 our_curs_y
= term
->curs
.y
- term
->disptop
;
4224 * Adjust the cursor position in the case where it's
4225 * resting on the right-hand half of a CJK wide character.
4226 * xterm's behaviour here, which seems adequate to me, is
4227 * to display the cursor covering the _whole_ character,
4228 * exactly as if it were one space to the left.
4230 termline
*ldata
= lineptr(term
->curs
.y
);
4231 our_curs_x
= term
->curs
.x
;
4232 if (our_curs_x
> 0 &&
4233 ldata
->chars
[our_curs_x
].chr
== UCSWIDE
)
4239 * If the cursor is not where it was last time we painted, and
4240 * its previous position is visible on screen, invalidate its
4241 * previous position.
4243 if (term
->dispcursy
>= 0 &&
4244 (term
->curstype
!= cursor
||
4245 term
->dispcursy
!= our_curs_y
||
4246 term
->dispcursx
!= our_curs_x
)) {
4247 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4250 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4251 dispcurs
[-1].attr
|= ATTR_INVALID
;
4252 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4253 dispcurs
[1].attr
|= ATTR_INVALID
;
4254 dispcurs
->attr
|= ATTR_INVALID
;
4258 term
->dispcursx
= term
->dispcursy
= -1;
4260 #ifdef OPTIMISE_SCROLL
4262 sr
= term
->scrollhead
;
4264 struct scrollregion
*next
= sr
->next
;
4265 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4269 term
->scrollhead
= term
->scrolltail
= NULL
;
4270 #endif /* OPTIMISE_SCROLL */
4272 /* The normal screen data */
4273 for (i
= 0; i
< term
->rows
; i
++) {
4276 int dirty_line
, dirty_run
, selected
;
4277 unsigned long attr
= 0, cset
= 0;
4278 int updated_line
= 0;
4281 int last_run_dirty
= 0;
4283 scrpos
.y
= i
+ term
->disptop
;
4284 ldata
= lineptr(scrpos
.y
);
4286 dirty_run
= dirty_line
= (ldata
->lattr
!=
4287 term
->disptext
[i
]->lattr
);
4288 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4290 /* Do Arabic shaping and bidi. */
4291 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4293 if (!term_bidi_cache_hit(term
, i
, ldata
->chars
, term
->cols
)) {
4295 if (term
->wcFromTo_size
< term
->cols
) {
4296 term
->wcFromTo_size
= term
->cols
;
4297 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4299 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4303 for(it
=0; it
<term
->cols
; it
++)
4305 unsigned long uc
= (ldata
->chars
[it
].chr
);
4307 switch (uc
& CSET_MASK
) {
4309 if (!term
->cfg
.rawcnp
) {
4310 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4314 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4317 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4320 switch (uc
& CSET_MASK
) {
4322 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4325 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4329 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4331 term
->wcFrom
[it
].index
= it
;
4335 do_bidi(term
->wcFrom
, term
->cols
);
4337 /* this is saved iff done from inside the shaping */
4338 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4339 for(it
=0; it
<term
->cols
; it
++)
4340 term
->wcTo
[it
] = term
->wcFrom
[it
];
4342 if(!term
->cfg
.arabicshaping
)
4343 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4345 if (term
->ltemp_size
< ldata
->size
) {
4346 term
->ltemp_size
= ldata
->size
;
4347 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4351 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4353 for(it
=0; it
<term
->cols
; it
++)
4355 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4356 if (term
->ltemp
[it
].cc_next
)
4357 term
->ltemp
[it
].cc_next
-=
4358 it
- term
->wcTo
[it
].index
;
4360 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4361 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4363 term_bidi_cache_store(term
, i
, ldata
->chars
,
4364 term
->ltemp
, ldata
->size
);
4366 lchars
= term
->ltemp
;
4368 lchars
= term
->post_bidi_cache
[i
];
4371 lchars
= ldata
->chars
;
4373 for (j
= 0; j
< term
->cols
; j
++) {
4374 unsigned long tattr
, tchar
;
4375 termchar
*d
= lchars
+ j
;
4376 int break_run
, do_copy
;
4382 switch (tchar
& CSET_MASK
) {
4384 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4387 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4390 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4393 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4396 /* Video reversing things */
4397 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4398 if (term
->seltype
== LEXICOGRAPHIC
)
4399 selected
= (posle(term
->selstart
, scrpos
) &&
4400 poslt(scrpos
, term
->selend
));
4402 selected
= (posPle(term
->selstart
, scrpos
) &&
4403 posPlt(scrpos
, term
->selend
));
4407 ^ (selected ? ATTR_REVERSE
: 0));
4409 /* 'Real' blinking ? */
4410 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4411 if (term
->has_focus
&& term
->tblinker
) {
4412 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4414 tattr
&= ~ATTR_BLINK
;
4418 * Check the font we'll _probably_ be using to see if
4419 * the character is wide when we don't want it to be.
4421 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4422 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4424 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4425 tattr
|= ATTR_NARROW
;
4426 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4427 tattr
|= ATTR_NARROW
;
4429 /* Cursor here ? Save the 'background' */
4430 if (i
== our_curs_y
&& j
== our_curs_x
) {
4432 cursor_background
.chr
= tchar
;
4433 cursor_background
.attr
= tattr
;
4434 /* For once, this cc_next field is an absolute index in lchars */
4436 cursor_background
.cc_next
= d
->cc_next
+ j
;
4438 cursor_background
.cc_next
= 0;
4439 term
->dispcursx
= j
;
4440 term
->dispcursy
= i
;
4443 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4446 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4448 /* Special hack for VT100 Linedraw glyphs */
4449 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4453 * Separate out sequences of characters that have the
4454 * same CSET, if that CSET is a magic one.
4456 if (CSET_OF(tchar
) != cset
)
4460 * Break on both sides of any combined-character cell.
4462 if (d
->cc_next
!= 0 ||
4463 (j
> 0 && d
[-1].cc_next
!= 0))
4466 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4467 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4468 term
->disptext
[i
]->chars
[j
].attr
== tattr
)
4470 else if (!dirty_run
&& ccount
== 1)
4475 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4476 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4482 cset
= CSET_OF(tchar
);
4483 if (term
->ucsdata
->dbcs_screenfont
)
4484 last_run_dirty
= dirty_run
;
4485 dirty_run
= dirty_line
;
4489 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4495 if (ccount
>= chlen
) {
4496 chlen
= ccount
+ 256;
4497 ch
= sresize(ch
, chlen
, wchar_t);
4499 ch
[ccount
++] = (wchar_t) tchar
;
4504 while (dd
->cc_next
) {
4505 unsigned long schar
;
4510 switch (schar
& CSET_MASK
) {
4512 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4515 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4518 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4522 if (ccount
>= chlen
) {
4523 chlen
= ccount
+ 256;
4524 ch
= sresize(ch
, chlen
, wchar_t);
4526 ch
[ccount
++] = (wchar_t) schar
;
4529 attr
|= TATTR_COMBINING
;
4533 copy_termchar(term
->disptext
[i
], j
, d
);
4534 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
4535 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
4538 /* If it's a wide char step along to the next one. */
4539 if (tattr
& ATTR_WIDE
) {
4540 if (++j
< term
->cols
) {
4543 * By construction above, the cursor should not
4544 * be on the right-hand half of this character.
4547 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
4548 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
4550 copy_termchar(term
->disptext
[i
], j
, d
);
4554 if (dirty_run
&& ccount
> 0) {
4555 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4559 /* Cursor on this line ? (and changed) */
4560 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
4561 ch
[0] = (wchar_t) cursor_background
.chr
;
4562 attr
= cursor_background
.attr
| cursor
;
4565 if (cursor_background
.cc_next
) {
4566 termchar
*dd
= ldata
->chars
+ cursor_background
.cc_next
;
4569 unsigned long schar
;
4572 switch (schar
& CSET_MASK
) {
4574 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4577 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4580 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4584 if (ccount
>= chlen
) {
4585 chlen
= ccount
+ 256;
4586 ch
= sresize(ch
, chlen
, wchar_t);
4588 ch
[ccount
++] = (wchar_t) schar
;
4596 attr
|= TATTR_COMBINING
;
4599 do_cursor(ctx
, our_curs_x
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4600 term
->curstype
= cursor
;
4610 * Flick the switch that says if blinking things should be shown or hidden.
4613 void term_blink(Terminal
*term
, int flg
)
4615 long now
, blink_diff
;
4617 now
= GETTICKCOUNT();
4618 blink_diff
= now
- term
->last_tblink
;
4620 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
4621 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
4622 term
->last_tblink
= now
;
4623 term
->tblinker
= !term
->tblinker
;
4628 term
->last_blink
= now
;
4632 blink_diff
= now
- term
->last_blink
;
4634 /* Make sure the cursor blinks no faster than system blink rate */
4635 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
4638 term
->last_blink
= now
;
4639 term
->blinker
= !term
->blinker
;
4643 * Invalidate the whole screen so it will be repainted in full.
4645 void term_invalidate(Terminal
*term
)
4649 for (i
= 0; i
< term
->rows
; i
++)
4650 for (j
= 0; j
< term
->cols
; j
++)
4651 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4655 * Paint the window in response to a WM_PAINT message.
4657 void term_paint(Terminal
*term
, Context ctx
,
4658 int left
, int top
, int right
, int bottom
, int immediately
)
4661 if (left
< 0) left
= 0;
4662 if (top
< 0) top
= 0;
4663 if (right
>= term
->cols
) right
= term
->cols
-1;
4664 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
4666 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
4667 if (term
->disptext
[i
]->lattr
== LATTR_NORM
)
4668 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
4669 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4671 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
4672 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4675 /* This should happen soon enough, also for some reason it sometimes
4676 * fails to actually do anything when re-sizing ... painting the wrong
4680 do_paint (term
, ctx
, FALSE
);
4684 * Attempt to scroll the scrollback. The second parameter gives the
4685 * position we want to scroll to; the first is +1 to denote that
4686 * this position is relative to the beginning of the scrollback, -1
4687 * to denote it is relative to the end, and 0 to denote that it is
4688 * relative to the current position.
4690 void term_scroll(Terminal
*term
, int rel
, int where
)
4692 int sbtop
= -sblines(term
);
4693 #ifdef OPTIMISE_SCROLL
4694 int olddisptop
= term
->disptop
;
4696 #endif /* OPTIMISE_SCROLL */
4698 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
4699 if (term
->disptop
< sbtop
)
4700 term
->disptop
= sbtop
;
4701 if (term
->disptop
> 0)
4704 #ifdef OPTIMISE_SCROLL
4705 shift
= (term
->disptop
- olddisptop
);
4706 if (shift
< term
->rows
&& shift
> -term
->rows
)
4707 scroll_display(term
, 0, term
->rows
- 1, shift
);
4708 #endif /* OPTIMISE_SCROLL */
4712 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
4715 wchar_t *wbptr
; /* where next char goes within workbuf */
4717 int wblen
= 0; /* workbuf len */
4718 int buflen
; /* amount of memory allocated to workbuf */
4720 buflen
= 5120; /* Default size */
4721 workbuf
= snewn(buflen
, wchar_t);
4722 wbptr
= workbuf
; /* start filling here */
4723 old_top_x
= top
.x
; /* needed for rect==1 */
4725 while (poslt(top
, bottom
)) {
4727 termline
*ldata
= lineptr(top
.y
);
4731 * nlpos will point at the maximum position on this line we
4732 * should copy up to. So we start it at the end of the
4736 nlpos
.x
= term
->cols
;
4739 * ... move it backwards if there's unused space at the end
4740 * of the line (and also set `nl' if this is the case,
4741 * because in normal selection mode this means we need a
4742 * newline at the end)...
4744 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
4745 while (IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
4748 if (poslt(nlpos
, bottom
))
4750 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
4751 /* Ignore the last char on the line in a WRAPPED2 line. */
4756 * ... and then clip it to the terminal x coordinate if
4757 * we're doing rectangular selection. (In this case we
4758 * still did the above, so that copying e.g. the right-hand
4759 * column from a table doesn't fill with spaces on the
4763 if (nlpos
.x
> bottom
.x
)
4765 nl
= (top
.y
< bottom
.y
);
4768 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
4771 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
4773 wchar_t cbuf
[16], *p
;
4777 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
4783 int uc
= ldata
->chars
[x
].chr
;
4785 switch (uc
& CSET_MASK
) {
4787 if (!term
->cfg
.rawcnp
) {
4788 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4792 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4795 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4798 switch (uc
& CSET_MASK
) {
4800 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4803 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4807 set
= (uc
& CSET_MASK
);
4808 c
= (uc
& ~CSET_MASK
);
4812 if (DIRECT_FONT(uc
)) {
4813 if (c
>= ' ' && c
!= 0x7F) {
4817 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
4819 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
4820 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
4824 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
4828 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
4835 for (p
= cbuf
; *p
; p
++) {
4836 /* Enough overhead for trailing NL and nul */
4837 if (wblen
>= buflen
- 16) {
4839 workbuf
= sresize(workbuf
, buflen
, wchar_t);
4840 wbptr
= workbuf
+ wblen
;
4846 if (ldata
->chars
[x
].cc_next
)
4847 x
+= ldata
->chars
[x
].cc_next
;
4855 for (i
= 0; i
< sel_nl_sz
; i
++) {
4857 *wbptr
++ = sel_nl
[i
];
4861 top
.x
= rect ? old_top_x
: 0;
4865 #if SELECTION_NUL_TERMINATED
4869 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
4870 if (buflen
> 0) /* indicates we allocated this buffer */
4874 void term_copyall(Terminal
*term
)
4878 tree234
*screen
= term
->screen
;
4879 top
.y
= -sblines(term
);
4881 bottom
.y
= find_last_nonempty_line(term
, screen
);
4882 bottom
.x
= term
->cols
;
4883 clipme(term
, top
, bottom
, 0, TRUE
);
4887 * The wordness array is mainly for deciding the disposition of the
4888 * US-ASCII characters.
4890 static int wordtype(Terminal
*term
, int uc
)
4893 int start
, end
, ctype
;
4895 static const struct ucsword ucs_words
[] = {
4901 0x037e, 0x037e, 1}, /* Greek question mark */
4903 0x0387, 0x0387, 1}, /* Greek ano teleia */
4905 0x055a, 0x055f, 1}, /* Armenian punctuation */
4907 0x0589, 0x0589, 1}, /* Armenian full stop */
4909 0x0700, 0x070d, 1}, /* Syriac punctuation */
4911 0x104a, 0x104f, 1}, /* Myanmar punctuation */
4913 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
4915 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
4917 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
4919 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
4921 0x1800, 0x180a, 1}, /* Mongolian punctuation */
4923 0x2000, 0x200a, 0}, /* Various spaces */
4925 0x2070, 0x207f, 2}, /* superscript */
4927 0x2080, 0x208f, 2}, /* subscript */
4929 0x200b, 0x27ff, 1}, /* punctuation and symbols */
4931 0x3000, 0x3000, 0}, /* ideographic space */
4933 0x3001, 0x3020, 1}, /* ideographic punctuation */
4935 0x303f, 0x309f, 3}, /* Hiragana */
4937 0x30a0, 0x30ff, 3}, /* Katakana */
4939 0x3300, 0x9fff, 3}, /* CJK Ideographs */
4941 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
4943 0xf900, 0xfaff, 3}, /* CJK Ideographs */
4945 0xfe30, 0xfe6b, 1}, /* punctuation forms */
4947 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
4949 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
4951 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
4953 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
4955 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
4959 const struct ucsword
*wptr
;
4961 switch (uc
& CSET_MASK
) {
4963 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4966 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4969 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4972 switch (uc
& CSET_MASK
) {
4974 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4977 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4981 /* For DBCS fonts I can't do anything useful. Even this will sometimes
4982 * fail as there's such a thing as a double width space. :-(
4984 if (term
->ucsdata
->dbcs_screenfont
&&
4985 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
4989 return term
->wordness
[uc
];
4991 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
4992 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5000 * Spread the selection outwards according to the selection mode.
5002 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5006 int topy
= -sblines(term
);
5008 ldata
= lineptr(p
.y
);
5010 switch (term
->selmode
) {
5013 * In this mode, every character is a separate unit, except
5014 * for runs of spaces at the end of a non-wrapping line.
5016 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5017 termchar
*q
= ldata
->chars
+ term
->cols
;
5018 while (q
> ldata
->chars
&& IS_SPACE_CHR(q
[-1].chr
))
5020 if (q
== ldata
->chars
+ term
->cols
)
5022 if (p
.x
>= q
- ldata
->chars
)
5023 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5028 * In this mode, the units are maximal runs of characters
5029 * whose `wordness' has the same value.
5031 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5034 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5035 term
->cols
-1 : term
->cols
);
5036 if (p
.x
< maxcols
-1) {
5037 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5042 if (ldata
->lattr
& LATTR_WRAPPED
) {
5044 ldata2
= lineptr(p
.y
+1);
5045 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5062 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5071 ldata2
= lineptr(p
.y
-1);
5072 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5073 term
->cols
-1 : term
->cols
);
5074 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5075 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5093 * In this mode, every line is a unit.
5095 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5103 static void sel_spread(Terminal
*term
)
5105 if (term
->seltype
== LEXICOGRAPHIC
) {
5106 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5107 decpos(term
->selend
);
5108 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5109 incpos(term
->selend
);
5113 void term_do_paste(Terminal
*term
)
5118 get_clip(term
->frontend
, &data
, &len
);
5119 if (data
&& len
> 0) {
5122 term_seen_key_event(term
); /* pasted data counts */
5124 if (term
->paste_buffer
)
5125 sfree(term
->paste_buffer
);
5126 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5127 term
->paste_buffer
= snewn(len
, wchar_t);
5130 while (p
< data
+ len
) {
5131 while (p
< data
+ len
&&
5132 !(p
<= data
+ len
- sel_nl_sz
&&
5133 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5138 for (i
= 0; i
< p
- q
; i
++) {
5139 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5143 if (p
<= data
+ len
- sel_nl_sz
&&
5144 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5145 term
->paste_buffer
[term
->paste_len
++] = '\015';
5151 /* Assume a small paste will be OK in one go. */
5152 if (term
->paste_len
< 256) {
5154 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5155 if (term
->paste_buffer
)
5156 sfree(term
->paste_buffer
);
5157 term
->paste_buffer
= 0;
5158 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5161 get_clip(term
->frontend
, NULL
, NULL
);
5164 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5165 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5169 int raw_mouse
= (term
->xterm_mouse
&&
5170 !term
->cfg
.no_mouse_rep
&&
5171 !(term
->cfg
.mouse_override
&& shift
));
5172 int default_seltype
;
5176 if (a
== MA_DRAG
&& !raw_mouse
)
5177 term_scroll(term
, 0, -1);
5179 if (y
>= term
->rows
) {
5181 if (a
== MA_DRAG
&& !raw_mouse
)
5182 term_scroll(term
, 0, +1);
5191 if (x
>= term
->cols
)
5194 selpoint
.y
= y
+ term
->disptop
;
5196 ldata
= lineptr(selpoint
.y
);
5197 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5202 int encstate
= 0, r
, c
;
5209 encstate
= 0x20; /* left button down */
5220 case MBT_WHEEL_DOWN
:
5223 default: break; /* placate gcc warning about enum use */
5227 if (term
->xterm_mouse
== 1)
5233 term
->mouse_is_down
= 0;
5236 if (term
->mouse_is_down
== braw
)
5238 term
->mouse_is_down
= braw
;
5240 default: break; /* placate gcc warning about enum use */
5249 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5250 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5256 * Set the selection type (rectangular or normal) at the start
5257 * of a selection attempt, from the state of Alt.
5259 if (!alt
^ !term
->cfg
.rect_select
)
5260 default_seltype
= RECTANGULAR
;
5262 default_seltype
= LEXICOGRAPHIC
;
5264 if (term
->selstate
== NO_SELECTION
) {
5265 term
->seltype
= default_seltype
;
5268 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5270 term
->selstate
= ABOUT_TO
;
5271 term
->seltype
= default_seltype
;
5272 term
->selanchor
= selpoint
;
5273 term
->selmode
= SM_CHAR
;
5274 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5276 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5277 term
->selstate
= DRAGGING
;
5278 term
->selstart
= term
->selanchor
= selpoint
;
5279 term
->selend
= term
->selstart
;
5280 incpos(term
->selend
);
5282 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5283 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5284 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5286 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5287 term
->selstate
== SELECTED
) {
5288 if (term
->seltype
== LEXICOGRAPHIC
) {
5290 * For normal selection, we extend by moving
5291 * whichever end of the current selection is closer
5294 if (posdiff(selpoint
, term
->selstart
) <
5295 posdiff(term
->selend
, term
->selstart
) / 2) {
5296 term
->selanchor
= term
->selend
;
5297 decpos(term
->selanchor
);
5299 term
->selanchor
= term
->selstart
;
5303 * For rectangular selection, we have a choice of
5304 * _four_ places to put selanchor and selpoint: the
5305 * four corners of the selection.
5307 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5308 term
->selanchor
.x
= term
->selend
.x
-1;
5310 term
->selanchor
.x
= term
->selstart
.x
;
5312 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5313 term
->selanchor
.y
= term
->selend
.y
;
5315 term
->selanchor
.y
= term
->selstart
.y
;
5317 term
->selstate
= DRAGGING
;
5319 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5320 term
->selanchor
= selpoint
;
5321 term
->selstate
= DRAGGING
;
5322 if (term
->seltype
== LEXICOGRAPHIC
) {
5324 * For normal selection, we set (selstart,selend) to
5325 * (selpoint,selanchor) in some order.
5327 if (poslt(selpoint
, term
->selanchor
)) {
5328 term
->selstart
= selpoint
;
5329 term
->selend
= term
->selanchor
;
5330 incpos(term
->selend
);
5332 term
->selstart
= term
->selanchor
;
5333 term
->selend
= selpoint
;
5334 incpos(term
->selend
);
5338 * For rectangular selection, we may need to
5339 * interchange x and y coordinates (if the user has
5340 * dragged in the -x and +y directions, or vice versa).
5342 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5343 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5344 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5345 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5348 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5350 if (term
->selstate
== DRAGGING
) {
5352 * We've completed a selection. We now transfer the
5353 * data to the clipboard.
5355 clipme(term
, term
->selstart
, term
->selend
,
5356 (term
->seltype
== RECTANGULAR
), FALSE
);
5357 term
->selstate
= SELECTED
;
5359 term
->selstate
= NO_SELECTION
;
5360 } else if (bcooked
== MBT_PASTE
5362 #if MULTICLICK_ONLY_EVENT
5363 || a
== MA_2CLK
|| a
== MA_3CLK
5366 request_paste(term
->frontend
);
5372 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5373 unsigned int modifiers
, unsigned int flags
)
5377 int prependesc
= FALSE
;
5381 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5382 for (i
= 0; i
< tlen
; i
++)
5383 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5384 fprintf(stderr
, "\n");
5388 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5391 /* Currently, Meta always just prefixes everything with ESC. */
5392 if (modifiers
& PKM_META
)
5394 modifiers
&= ~PKM_META
;
5397 * Alt is only used for Alt+keypad, which isn't supported yet, so
5400 modifiers
&= ~PKM_ALT
;
5402 /* Standard local function keys */
5403 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5405 if (keysym
== PK_PAGEUP
)
5406 /* scroll up one page */;
5407 if (keysym
== PK_PAGEDOWN
)
5408 /* scroll down on page */;
5409 if (keysym
== PK_INSERT
)
5410 term_do_paste(term
);
5413 if (keysym
== PK_PAGEUP
)
5414 /* scroll up one line */;
5415 if (keysym
== PK_PAGEDOWN
)
5416 /* scroll down one line */;
5417 /* Control-Numlock for app-keypad mode switch */
5418 if (keysym
== PK_PF1
)
5419 term
->app_keypad_keys
^= 1;
5423 if (modifiers
& PKM_ALT
) {
5424 /* Alt+F4 (close) */
5425 /* Alt+Return (full screen) */
5426 /* Alt+Space (system menu) */
5429 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5430 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5431 /* ASCII chars + Control */
5432 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5433 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5437 * Control-2 should return ^@ (0x00), Control-6 should return
5438 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5439 * the DOS keyboard handling did it, and we have nothing better
5440 * to do with the key combo in question, we'll also map
5441 * Control-Backquote to ^\ (0x1C).
5444 case ' ': text
[0] = 0x00; break;
5445 case '-': text
[0] = 0x1f; break;
5446 case '/': text
[0] = 0x1f; break;
5447 case '2': text
[0] = 0x00; break;
5448 case '3': text
[0] = 0x1b; break;
5449 case '4': text
[0] = 0x1c; break;
5450 case '5': text
[0] = 0x1d; break;
5451 case '6': text
[0] = 0x1e; break;
5452 case '7': text
[0] = 0x1f; break;
5453 case '8': text
[0] = 0x7f; break;
5454 case '`': text
[0] = 0x1c; break;
5459 /* Nethack keypad */
5460 if (term
->cfg
.nethack_keypad
) {
5463 case PK_KP1
: c
= 'b'; break;
5464 case PK_KP2
: c
= 'j'; break;
5465 case PK_KP3
: c
= 'n'; break;
5466 case PK_KP4
: c
= 'h'; break;
5467 case PK_KP5
: c
= '.'; break;
5468 case PK_KP6
: c
= 'l'; break;
5469 case PK_KP7
: c
= 'y'; break;
5470 case PK_KP8
: c
= 'k'; break;
5471 case PK_KP9
: c
= 'u'; break;
5472 default: break; /* else gcc warns `enum value not used' */
5476 if (modifiers
& PKM_CONTROL
)
5478 else if (modifiers
& PKM_SHIFT
)
5486 /* Numeric Keypad */
5487 if (PK_ISKEYPAD(keysym
)) {
5491 * In VT400 mode, PFn always emits an escape sequence. In
5492 * Linux and tilde modes, this only happens in app keypad mode.
5494 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5495 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5496 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5497 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5499 case PK_PF1
: xkey
= 'P'; break;
5500 case PK_PF2
: xkey
= 'Q'; break;
5501 case PK_PF3
: xkey
= 'R'; break;
5502 case PK_PF4
: xkey
= 'S'; break;
5503 default: break; /* else gcc warns `enum value not used' */
5506 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5508 case PK_KP0
: xkey
= 'p'; break;
5509 case PK_KP1
: xkey
= 'q'; break;
5510 case PK_KP2
: xkey
= 'r'; break;
5511 case PK_KP3
: xkey
= 's'; break;
5512 case PK_KP4
: xkey
= 't'; break;
5513 case PK_KP5
: xkey
= 'u'; break;
5514 case PK_KP6
: xkey
= 'v'; break;
5515 case PK_KP7
: xkey
= 'w'; break;
5516 case PK_KP8
: xkey
= 'x'; break;
5517 case PK_KP9
: xkey
= 'y'; break;
5518 case PK_KPDECIMAL
: xkey
= 'n'; break;
5519 case PK_KPENTER
: xkey
= 'M'; break;
5520 default: break; /* else gcc warns `enum value not used' */
5522 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5524 * xterm can't see the layout of the keypad, so it has
5525 * to rely on the X keysyms returned by the keys.
5526 * Hence, we look at the strings here, not the PuTTY
5527 * keysyms (which describe the layout).
5531 if (modifiers
& PKM_SHIFT
)
5536 case '/': xkey
= 'o'; break;
5537 case '*': xkey
= 'j'; break;
5538 case '-': xkey
= 'm'; break;
5542 * In all other modes, we try to retain the layout of
5543 * the DEC keypad in application mode.
5547 /* This key covers the '-' and ',' keys on a VT220 */
5548 if (modifiers
& PKM_SHIFT
)
5549 xkey
= 'm'; /* VT220 '-' */
5551 xkey
= 'l'; /* VT220 ',' */
5553 case PK_KPMINUS
: xkey
= 'm'; break;
5554 case PK_KPCOMMA
: xkey
= 'l'; break;
5555 default: break; /* else gcc warns `enum value not used' */
5560 if (term
->vt52_mode
) {
5561 if (xkey
>= 'P' && xkey
<= 'S')
5562 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5564 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
5566 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5569 /* Not in application mode -- treat the number pad as arrow keys? */
5570 if ((flags
& PKF_NUMLOCK
) == 0) {
5572 case PK_KP0
: keysym
= PK_INSERT
; break;
5573 case PK_KP1
: keysym
= PK_END
; break;
5574 case PK_KP2
: keysym
= PK_DOWN
; break;
5575 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
5576 case PK_KP4
: keysym
= PK_LEFT
; break;
5577 case PK_KP5
: keysym
= PK_REST
; break;
5578 case PK_KP6
: keysym
= PK_RIGHT
; break;
5579 case PK_KP7
: keysym
= PK_HOME
; break;
5580 case PK_KP8
: keysym
= PK_UP
; break;
5581 case PK_KP9
: keysym
= PK_PAGEUP
; break;
5582 default: break; /* else gcc warns `enum value not used' */
5587 /* Miscellaneous keys */
5594 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
5595 else if (modifiers
== PKM_SHIFT
)
5596 /* We do the opposite of what is configured */
5597 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
5603 else if (modifiers
== PKM_SHIFT
)
5604 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
5607 /* XXX window.c has ctrl+shift+space sending 0xa0 */
5609 if (modifiers
== PKM_CONTROL
)
5614 case PK_KPENTER
: /* Odd keypad modes handled above */
5615 if (modifiers
== 0) {
5617 if (term
->cr_lf_return
)
5621 default: break; /* else gcc warns `enum value not used' */
5624 /* SCO function keys and editing keys */
5625 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
5626 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
5627 static char const codes
[] =
5628 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
5629 int index
= keysym
- PK_F1
;
5631 if (modifiers
& PKM_SHIFT
) index
+= 12;
5632 if (modifiers
& PKM_CONTROL
) index
+= 24;
5633 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
5636 if (PK_ISEDITING(keysym
)) {
5640 case PK_DELETE
: *p
++ = 0x7f; goto done
;
5641 case PK_HOME
: xkey
= 'H'; break;
5642 case PK_INSERT
: xkey
= 'L'; break;
5643 case PK_END
: xkey
= 'F'; break;
5644 case PK_PAGEUP
: xkey
= 'I'; break;
5645 case PK_PAGEDOWN
: xkey
= 'G'; break;
5646 default: break; /* else gcc warns `enum value not used' */
5648 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5652 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
5655 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
5656 /* Xterm shuffles these keys, apparently. */
5658 case PK_HOME
: keysym
= PK_INSERT
; break;
5659 case PK_INSERT
: keysym
= PK_HOME
; break;
5660 case PK_DELETE
: keysym
= PK_END
; break;
5661 case PK_END
: keysym
= PK_PAGEUP
; break;
5662 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
5663 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
5664 default: break; /* else gcc warns `enum value not used' */
5669 if (term
->cfg
.rxvt_homeend
&&
5670 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
5671 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
5675 if (term
->vt52_mode
) {
5679 * A real VT52 doesn't have these, and a VT220 doesn't
5680 * send anything for them in VT52 mode.
5683 case PK_HOME
: xkey
= 'H'; break;
5684 case PK_INSERT
: xkey
= 'L'; break;
5685 case PK_DELETE
: xkey
= 'M'; break;
5686 case PK_END
: xkey
= 'E'; break;
5687 case PK_PAGEUP
: xkey
= 'I'; break;
5688 case PK_PAGEDOWN
: xkey
= 'G'; break;
5689 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
5691 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5696 case PK_HOME
: code
= 1; break;
5697 case PK_INSERT
: code
= 2; break;
5698 case PK_DELETE
: code
= 3; break;
5699 case PK_END
: code
= 4; break;
5700 case PK_PAGEUP
: code
= 5; break;
5701 case PK_PAGEDOWN
: code
= 6; break;
5702 default: code
= 0; break; /* else gcc warns `enum value not used' */
5704 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
5708 if (PK_ISFKEY(keysym
)) {
5709 /* Map Shift+F1-F10 to F11-F20 */
5710 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
5712 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
5714 /* XXX This overrides the XTERM/VT52 mode below */
5716 if (keysym
>= PK_F6
) offt
++;
5717 if (keysym
>= PK_F12
) offt
++;
5718 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
5719 'P' + keysym
- PK_F1
- offt
);
5722 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
5723 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
5726 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
5727 if (term
->vt52_mode
)
5728 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
5730 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
5733 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
5737 if (PK_ISCURSOR(keysym
)) {
5741 case PK_UP
: xkey
= 'A'; break;
5742 case PK_DOWN
: xkey
= 'B'; break;
5743 case PK_RIGHT
: xkey
= 'C'; break;
5744 case PK_LEFT
: xkey
= 'D'; break;
5745 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
5746 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
5748 if (term
->vt52_mode
)
5749 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5751 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
5753 /* Useful mapping of Ctrl-arrows */
5754 if (modifiers
== PKM_CONTROL
)
5758 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5760 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5766 if (p
> output
|| tlen
> 0) {
5768 * Interrupt an ongoing paste. I'm not sure
5769 * this is sensible, but for the moment it's
5770 * preferable to having to faff about buffering
5776 * We need not bother about stdin backlogs
5777 * here, because in GUI PuTTY we can't do
5778 * anything about it anyway; there's no means
5779 * of asking Windows to hold off on KEYDOWN
5780 * messages. We _have_ to buffer everything
5783 term_seen_key_event(term
);
5787 fprintf(stderr
, "sending ESC\n");
5789 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
5794 fprintf(stderr
, "sending %d bytes:", p
- output
);
5795 for (i
= 0; i
< p
- output
; i
++)
5796 fprintf(stderr
, " %02x", output
[i
]);
5797 fprintf(stderr
, "\n");
5799 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
5800 } else if (tlen
> 0) {
5802 fprintf(stderr
, "sending %d unichars:", tlen
);
5803 for (i
= 0; i
< tlen
; i
++)
5804 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
5805 fprintf(stderr
, "\n");
5807 luni_send(term
->ldisc
, text
, tlen
, 1);
5812 void term_nopaste(Terminal
*term
)
5814 if (term
->paste_len
== 0)
5816 sfree(term
->paste_buffer
);
5817 term
->paste_buffer
= NULL
;
5818 term
->paste_len
= 0;
5821 int term_paste_pending(Terminal
*term
)
5823 return term
->paste_len
!= 0;
5826 void term_paste(Terminal
*term
)
5828 long now
, paste_diff
;
5830 if (term
->paste_len
== 0)
5833 /* Don't wait forever to paste */
5834 if (term
->paste_hold
) {
5835 now
= GETTICKCOUNT();
5836 paste_diff
= now
- term
->last_paste
;
5837 if (paste_diff
>= 0 && paste_diff
< 450)
5840 term
->paste_hold
= 0;
5842 while (term
->paste_pos
< term
->paste_len
) {
5844 while (n
+ term
->paste_pos
< term
->paste_len
) {
5845 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
5849 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
5850 term
->paste_pos
+= n
;
5852 if (term
->paste_pos
< term
->paste_len
) {
5853 term
->paste_hold
= 1;
5857 sfree(term
->paste_buffer
);
5858 term
->paste_buffer
= NULL
;
5859 term
->paste_len
= 0;
5862 static void deselect(Terminal
*term
)
5864 term
->selstate
= NO_SELECTION
;
5865 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
5868 void term_deselect(Terminal
*term
)
5874 int term_ldisc(Terminal
*term
, int option
)
5876 if (option
== LD_ECHO
)
5877 return term
->term_echoing
;
5878 if (option
== LD_EDIT
)
5879 return term
->term_editing
;
5883 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
5885 bufchain_add(&term
->inbuf
, data
, len
);
5887 if (!term
->in_term_out
) {
5888 term
->in_term_out
= TRUE
;
5889 term_blink(term
, 1);
5891 term
->in_term_out
= FALSE
;
5895 * term_out() always completely empties inbuf. Therefore,
5896 * there's no reason at all to return anything other than zero
5897 * from this function, because there _can't_ be a question of
5898 * the remote side needing to wait until term_out() has cleared
5901 * This is a slightly suboptimal way to deal with SSH2 - in
5902 * principle, the window mechanism would allow us to continue
5903 * to accept data on forwarded ports and X connections even
5904 * while the terminal processing was going slowly - but we
5905 * can't do the 100% right thing without moving the terminal
5906 * processing into a separate thread, and that might hurt
5907 * portability. So we manage stdout buffering the old SSH1 way:
5908 * if the terminal processing goes slowly, the whole SSH
5909 * connection stops accepting data until it's ready.
5911 * In practice, I can't imagine this causing serious trouble.
5916 void term_provide_logctx(Terminal
*term
, void *logctx
)
5918 term
->logctx
= logctx
;