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 * XXX-REMOVE-BEFORE-RELEASE: This is a bit performance-heavy
639 * to be leaving in production code.
641 #ifndef CHECK_SB_COMPRESSION
647 #ifdef DIAGNOSTIC_SB_COMPRESSION
648 for (i
= 0; i
< b
->len
; i
++) {
649 printf(" %02x ", b
->data
[i
]);
654 dcl
= decompressline(b
->data
, &dused
);
655 assert(b
->len
== dused
);
656 assert(ldata
->cols
== dcl
->cols
);
657 assert(ldata
->lattr
== dcl
->lattr
);
658 for (i
= 0; i
< ldata
->cols
; i
++)
659 assert(termchars_equal(&ldata
->chars
[i
], &dcl
->chars
[i
]));
661 #ifdef DIAGNOSTIC_SB_COMPRESSION
662 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
663 ldata
->cols
, 4 * ldata
->cols
, dused
,
664 (double)dused
/ (4 * ldata
->cols
));
672 * Trim the allocated memory so we don't waste any, and return.
674 return sresize(b
->data
, b
->len
, unsigned char);
677 static void readrle(struct buf
*b
, termline
*ldata
,
678 void (*readliteral
)(struct buf
*b
, termchar
*c
,
679 termline
*ldata
, unsigned long *state
))
682 unsigned long state
= 0;
684 while (n
< ldata
->cols
) {
690 int pos
= b
->len
, count
= hdr
+ 2 - 0x80;
692 assert(n
< ldata
->cols
);
694 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
698 /* Just a sequence of consecutive literals. */
702 assert(n
< ldata
->cols
);
703 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
709 assert(n
== ldata
->cols
);
711 static void readliteral_chr(struct buf
*b
, termchar
*c
, termline
*ldata
,
712 unsigned long *state
)
717 * 00000000-0000007F: 0xxxxxxx
718 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
719 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
720 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
721 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
726 c
->chr
= byte
| *state
;
727 } else if (byte
< 0xC0) {
728 c
->chr
= (byte
&~ 0xC0) << 8;
730 } else if (byte
< 0xE0) {
731 c
->chr
= (byte
&~ 0xE0) << 16;
732 c
->chr
|= get(b
) << 8;
734 } else if (byte
< 0xF0) {
735 c
->chr
= (byte
&~ 0xF0) << 24;
736 c
->chr
|= get(b
) << 16;
737 c
->chr
|= get(b
) << 8;
740 assert(byte
== 0xF0);
741 c
->chr
= get(b
) << 24;
742 c
->chr
|= get(b
) << 16;
743 c
->chr
|= get(b
) << 8;
746 *state
= c
->chr
& ~0xFF;
748 static void readliteral_attr(struct buf
*b
, termchar
*c
, termline
*ldata
,
749 unsigned long *state
)
764 static void readliteral_cc(struct buf
*b
, termchar
*c
, termline
*ldata
,
765 unsigned long *state
)
768 unsigned long zstate
;
769 int x
= c
- ldata
->chars
;
775 readliteral_chr(b
, &n
, ldata
, &zstate
);
778 add_cc(ldata
, x
, n
.chr
);
782 static termline
*decompressline(unsigned char *data
, int *bytes_used
)
784 int ncols
, byte
, shift
;
785 struct buf buffer
, *b
= &buffer
;
792 * First read in the column count.
797 ncols
|= (byte
& 0x7F) << shift
;
799 } while (byte
& 0x80);
802 * Now create the output termline.
804 ldata
= snew(termline
);
805 ldata
->chars
= snewn(ncols
, termchar
);
806 ldata
->cols
= ldata
->size
= ncols
;
807 ldata
->temporary
= TRUE
;
811 * We must set all the cc pointers in ldata->chars to 0 right
812 * now, so that cc diagnostics that verify the integrity of the
813 * whole line will make sense while we're in the middle of
818 for (i
= 0; i
< ldata
->cols
; i
++)
819 ldata
->chars
[i
].cc_next
= 0;
823 * Now read in the lattr.
825 ldata
->lattr
= shift
= 0;
828 ldata
->lattr
|= (byte
& 0x7F) << shift
;
830 } while (byte
& 0x80);
833 * Now we read in each of the RLE streams in turn.
835 readrle(b
, ldata
, readliteral_chr
);
836 readrle(b
, ldata
, readliteral_attr
);
837 readrle(b
, ldata
, readliteral_cc
);
839 /* Return the number of bytes read, for diagnostic purposes. */
841 *bytes_used
= b
->len
;
847 * Resize a line to make it `cols' columns wide.
849 static void resizeline(Terminal
*term
, termline
*line
, int cols
)
853 if (line
->cols
!= cols
) {
855 oldcols
= line
->cols
;
858 * This line is the wrong length, which probably means it
859 * hasn't been accessed since a resize. Resize it now.
861 * First, go through all the characters that will be thrown
862 * out in the resize (if we're shrinking the line) and
863 * return their cc lists to the cc free list.
865 for (i
= cols
; i
< oldcols
; i
++)
869 * If we're shrinking the line, we now bodily move the
870 * entire cc section from where it started to where it now
871 * needs to be. (We have to do this before the resize, so
872 * that the data we're copying is still there. However, if
873 * we're expanding, we have to wait until _after_ the
874 * resize so that the space we're copying into is there.)
877 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
878 (line
->size
- line
->cols
) * TSIZE
);
881 * Now do the actual resize, leaving the _same_ amount of
882 * cc space as there was to begin with.
884 line
->size
+= cols
- oldcols
;
885 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
889 * If we're expanding the line, _now_ we move the cc
893 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
894 (line
->size
- line
->cols
) * TSIZE
);
897 * Go through what's left of the original line, and adjust
898 * the first cc_next pointer in each list. (All the
899 * subsequent ones are still valid because they are
900 * relative offsets within the cc block.) Also do the same
901 * to the head of the cc_free list.
903 for (i
= 0; i
< oldcols
&& i
< cols
; i
++)
904 if (line
->chars
[i
].cc_next
)
905 line
->chars
[i
].cc_next
+= cols
- oldcols
;
907 line
->cc_free
+= cols
- oldcols
;
910 * And finally fill in the new space with erase chars. (We
911 * don't have to worry about cc lists here, because we
912 * _know_ the erase char doesn't have one.)
914 for (i
= oldcols
; i
< cols
; i
++)
915 line
->chars
[i
] = term
->basic_erase_char
;
917 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
922 * Get the number of lines in the scrollback.
924 static int sblines(Terminal
*term
)
926 int sblines
= count234(term
->scrollback
);
927 if (term
->cfg
.erase_to_scrollback
&&
928 term
->alt_which
&& term
->alt_screen
) {
929 sblines
+= term
->alt_sblines
;
935 * Retrieve a line of the screen or of the scrollback, according to
936 * whether the y coordinate is non-negative or negative
939 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
946 whichtree
= term
->screen
;
953 if (term
->cfg
.erase_to_scrollback
&&
954 term
->alt_which
&& term
->alt_screen
) {
955 altlines
= term
->alt_sblines
;
958 whichtree
= term
->scrollback
;
959 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
961 whichtree
= term
->alt_screen
;
962 treeindex
= y
+ term
->alt_sblines
;
963 /* treeindex = y + count234(term->alt_screen); */
966 if (whichtree
== term
->scrollback
) {
967 unsigned char *cline
= index234(whichtree
, treeindex
);
968 line
= decompressline(cline
, NULL
);
970 line
= index234(whichtree
, treeindex
);
973 /* We assume that we don't screw up and retrieve something out of range. */
974 assert(line
!= NULL
);
976 resizeline(term
, line
, term
->cols
);
977 /* FIXME: should we sort the compressed scrollback out here? */
982 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
983 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
986 * Set up power-on settings for the terminal.
988 static void power_on(Terminal
*term
)
990 term
->curs
.x
= term
->curs
.y
= 0;
991 term
->alt_x
= term
->alt_y
= 0;
992 term
->savecurs
.x
= term
->savecurs
.y
= 0;
993 term
->alt_t
= term
->marg_t
= 0;
994 if (term
->rows
!= -1)
995 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
997 term
->alt_b
= term
->marg_b
= 0;
998 if (term
->cols
!= -1) {
1000 for (i
= 0; i
< term
->cols
; i
++)
1001 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1003 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1004 term
->alt_ins
= term
->insert
= FALSE
;
1005 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
1006 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1007 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
1008 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
1009 term
->utf_state
= 0;
1010 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
1011 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= CSET_ASCII
;
1013 term
->in_vbell
= FALSE
;
1014 term
->cursor_on
= 1;
1015 term
->big_cursor
= 0;
1016 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
1017 term
->term_editing
= term
->term_echoing
= FALSE
;
1018 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1019 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1020 term
->use_bce
= term
->cfg
.bce
;
1021 term
->blink_is_real
= term
->cfg
.blinktext
;
1022 term
->erase_char
= term
->basic_erase_char
;
1023 term
->alt_which
= 0;
1024 term_print_finish(term
);
1027 for (i
= 0; i
< 256; i
++)
1028 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1031 swap_screen(term
, 1, FALSE
, FALSE
);
1032 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1033 swap_screen(term
, 0, FALSE
, FALSE
);
1034 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1039 * Force a screen update.
1041 void term_update(Terminal
*term
)
1044 ctx
= get_ctx(term
->frontend
);
1046 int need_sbar_update
= term
->seen_disp_event
;
1047 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1048 term
->disptop
= 0; /* return to main screen */
1049 term
->seen_disp_event
= 0;
1050 need_sbar_update
= TRUE
;
1053 if (need_sbar_update
)
1055 do_paint(term
, ctx
, TRUE
);
1056 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1062 * Called from front end when a keypress occurs, to trigger
1063 * anything magical that needs to happen in that situation.
1065 void term_seen_key_event(Terminal
*term
)
1068 * On any keypress, clear the bell overload mechanism
1069 * completely, on the grounds that large numbers of
1070 * beeps coming from deliberate key action are likely
1071 * to be intended (e.g. beeps from filename completion
1072 * blocking repeatedly).
1074 term
->beep_overloaded
= FALSE
;
1075 while (term
->beephead
) {
1076 struct beeptime
*tmp
= term
->beephead
;
1077 term
->beephead
= tmp
->next
;
1080 term
->beeptail
= NULL
;
1084 * Reset the scrollback on keypress, if we're doing that.
1086 if (term
->cfg
.scroll_on_key
) {
1087 term
->disptop
= 0; /* return to main screen */
1088 term
->seen_disp_event
= 1;
1093 * Same as power_on(), but an external function.
1095 void term_pwron(Terminal
*term
)
1098 if (term
->ldisc
) /* cause ldisc to notice changes */
1099 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1105 static void set_erase_char(Terminal
*term
)
1107 term
->erase_char
= term
->basic_erase_char
;
1109 term
->erase_char
.attr
= (term
->curr_attr
&
1110 (ATTR_FGMASK
| ATTR_BGMASK
));
1114 * When the user reconfigures us, we need to check the forbidden-
1115 * alternate-screen config option, disable raw mouse mode if the
1116 * user has disabled mouse reporting, and abandon a print job if
1117 * the user has disabled printing.
1119 void term_reconfig(Terminal
*term
, Config
*cfg
)
1122 * Before adopting the new config, check all those terminal
1123 * settings which control power-on defaults; and if they've
1124 * changed, we will modify the current state as well as the
1125 * default one. The full list is: Auto wrap mode, DEC Origin
1126 * Mode, BCE, blinking text, character classes.
1128 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
1131 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1132 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1133 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1134 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1135 reset_charclass
= 0;
1136 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1137 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1138 reset_charclass
= 1;
1141 * If the bidi or shaping settings have changed, flush the bidi
1144 if (term
->cfg
.arabicshaping
!= cfg
->arabicshaping
||
1145 term
->cfg
.bidi
!= cfg
->bidi
) {
1146 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1147 sfree(term
->pre_bidi_cache
[i
].chars
);
1148 sfree(term
->post_bidi_cache
[i
].chars
);
1149 term
->pre_bidi_cache
[i
].width
= -1;
1150 term
->pre_bidi_cache
[i
].chars
= NULL
;
1151 term
->post_bidi_cache
[i
].width
= -1;
1152 term
->post_bidi_cache
[i
].chars
= NULL
;
1156 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1159 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1161 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1163 term
->use_bce
= term
->cfg
.bce
;
1164 set_erase_char(term
);
1167 term
->blink_is_real
= term
->cfg
.blinktext
;
1168 if (reset_charclass
)
1169 for (i
= 0; i
< 256; i
++)
1170 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1172 if (term
->cfg
.no_alt_screen
)
1173 swap_screen(term
, 0, FALSE
, FALSE
);
1174 if (term
->cfg
.no_mouse_rep
) {
1175 term
->xterm_mouse
= 0;
1176 set_raw_mouse_mode(term
->frontend
, 0);
1178 if (term
->cfg
.no_remote_charset
) {
1179 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1180 term
->sco_acs
= term
->alt_sco_acs
= 0;
1183 if (!*term
->cfg
.printer
) {
1184 term_print_finish(term
);
1189 * Clear the scrollback.
1191 void term_clrsb(Terminal
*term
)
1195 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1196 sfree(line
); /* this is compressed data, not a termline */
1198 term
->tempsblines
= 0;
1199 term
->alt_sblines
= 0;
1204 * Initialise the terminal.
1206 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1212 * Allocate a new Terminal structure and initialise the fields
1215 term
= snew(Terminal
);
1216 term
->frontend
= frontend
;
1217 term
->ucsdata
= ucsdata
;
1218 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1219 term
->logctx
= NULL
;
1220 term
->compatibility_level
= TM_PUTTY
;
1221 strcpy(term
->id_string
, "\033[?6c");
1222 term
->last_blink
= term
->last_tblink
= 0;
1223 term
->paste_buffer
= NULL
;
1224 term
->paste_len
= 0;
1225 term
->last_paste
= 0;
1226 bufchain_init(&term
->inbuf
);
1227 bufchain_init(&term
->printer_buf
);
1228 term
->printing
= term
->only_printing
= FALSE
;
1229 term
->print_job
= NULL
;
1230 term
->vt52_mode
= FALSE
;
1231 term
->cr_lf_return
= FALSE
;
1232 term
->seen_disp_event
= FALSE
;
1233 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1234 term
->reset_132
= FALSE
;
1235 term
->blinker
= term
->tblinker
= 0;
1236 term
->has_focus
= 1;
1237 term
->repeat_off
= FALSE
;
1238 term
->termstate
= TOPLEVEL
;
1239 term
->selstate
= NO_SELECTION
;
1242 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1243 term
->tempsblines
= 0;
1244 term
->alt_sblines
= 0;
1246 term
->disptext
= NULL
;
1247 term
->dispcursx
= term
->dispcursy
= -1;
1250 term
->rows
= term
->cols
= -1;
1252 term
->beephead
= term
->beeptail
= NULL
;
1253 #ifdef OPTIMISE_SCROLL
1254 term
->scrollhead
= term
->scrolltail
= NULL
;
1255 #endif /* OPTIMISE_SCROLL */
1257 term
->lastbeep
= FALSE
;
1258 term
->beep_overloaded
= FALSE
;
1259 term
->attr_mask
= 0xffffffff;
1260 term
->resize_fn
= NULL
;
1261 term
->resize_ctx
= NULL
;
1262 term
->in_term_out
= FALSE
;
1264 term
->ltemp_size
= 0;
1265 term
->wcFrom
= NULL
;
1267 term
->wcFromTo_size
= 0;
1269 term
->bidi_cache_size
= 0;
1270 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1273 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1274 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1275 term
->basic_erase_char
.cc_next
= 0;
1276 term
->erase_char
= term
->basic_erase_char
;
1281 void term_free(Terminal
*term
)
1284 struct beeptime
*beep
;
1287 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1288 sfree(line
); /* compressed data, not a termline */
1289 freetree234(term
->scrollback
);
1290 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1292 freetree234(term
->screen
);
1293 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1295 freetree234(term
->alt_screen
);
1296 if (term
->disptext
) {
1297 for (i
= 0; i
< term
->rows
; i
++)
1298 freeline(term
->disptext
[i
]);
1300 sfree(term
->disptext
);
1301 while (term
->beephead
) {
1302 beep
= term
->beephead
;
1303 term
->beephead
= beep
->next
;
1306 bufchain_clear(&term
->inbuf
);
1308 printer_finish_job(term
->print_job
);
1309 bufchain_clear(&term
->printer_buf
);
1310 sfree(term
->paste_buffer
);
1312 sfree(term
->wcFrom
);
1315 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1316 sfree(term
->pre_bidi_cache
[i
].chars
);
1317 sfree(term
->post_bidi_cache
[i
].chars
);
1319 sfree(term
->pre_bidi_cache
);
1320 sfree(term
->post_bidi_cache
);
1326 * Set up the terminal for a given size.
1328 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1331 termline
**newdisp
, *line
;
1332 int i
, j
, oldrows
= term
->rows
;
1334 int save_alt_which
= term
->alt_which
;
1336 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1337 newsavelines
== term
->savelines
)
1338 return; /* nothing to do */
1341 swap_screen(term
, 0, FALSE
, FALSE
);
1343 term
->alt_t
= term
->marg_t
= 0;
1344 term
->alt_b
= term
->marg_b
= newrows
- 1;
1346 if (term
->rows
== -1) {
1347 term
->scrollback
= newtree234(NULL
);
1348 term
->screen
= newtree234(NULL
);
1349 term
->tempsblines
= 0;
1354 * Resize the screen and scrollback. We only need to shift
1355 * lines around within our data structures, because lineptr()
1356 * will take care of resizing each individual line if
1359 * - If the new screen is longer, we shunt lines in from temporary
1360 * scrollback if possible, otherwise we add new blank lines at
1363 * - If the new screen is shorter, we remove any blank lines at
1364 * the bottom if possible, otherwise shunt lines above the cursor
1365 * to scrollback if possible, otherwise delete lines below the
1368 * - Then, if the new scrollback length is less than the
1369 * amount of scrollback we actually have, we must throw some
1372 sblen
= count234(term
->scrollback
);
1373 /* Do this loop to expand the screen if newrows > rows */
1374 assert(term
->rows
== count234(term
->screen
));
1375 while (term
->rows
< newrows
) {
1376 if (term
->tempsblines
> 0) {
1377 unsigned char *cline
;
1378 /* Insert a line from the scrollback at the top of the screen. */
1379 assert(sblen
>= term
->tempsblines
);
1380 cline
= delpos234(term
->scrollback
, --sblen
);
1381 line
= decompressline(cline
, NULL
);
1383 line
->temporary
= FALSE
; /* reconstituted line is now real */
1384 term
->tempsblines
-= 1;
1385 addpos234(term
->screen
, line
, 0);
1387 term
->savecurs
.y
+= 1;
1389 /* Add a new blank line at the bottom of the screen. */
1390 line
= newline(term
, newcols
, FALSE
);
1391 addpos234(term
->screen
, line
, count234(term
->screen
));
1395 /* Do this loop to shrink the screen if newrows < rows */
1396 while (term
->rows
> newrows
) {
1397 if (term
->curs
.y
< term
->rows
- 1) {
1398 /* delete bottom row, unless it contains the cursor */
1399 sfree(delpos234(term
->screen
, term
->rows
- 1));
1401 /* push top row to scrollback */
1402 line
= delpos234(term
->screen
, 0);
1403 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1405 term
->tempsblines
+= 1;
1407 term
->savecurs
.y
-= 1;
1411 assert(term
->rows
== newrows
);
1412 assert(count234(term
->screen
) == newrows
);
1414 /* Delete any excess lines from the scrollback. */
1415 while (sblen
> newsavelines
) {
1416 line
= delpos234(term
->scrollback
, 0);
1420 if (sblen
< term
->tempsblines
)
1421 term
->tempsblines
= sblen
;
1422 assert(count234(term
->scrollback
) <= newsavelines
);
1423 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1426 /* Make a new displayed text buffer. */
1427 newdisp
= snewn(newrows
, termline
*);
1428 for (i
= 0; i
< newrows
; i
++) {
1429 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1430 for (j
= 0; j
< newcols
; j
++)
1431 newdisp
[i
]->chars
[i
].attr
= ATTR_INVALID
;
1433 if (term
->disptext
) {
1434 for (i
= 0; i
< oldrows
; i
++)
1435 freeline(term
->disptext
[i
]);
1437 sfree(term
->disptext
);
1438 term
->disptext
= newdisp
;
1439 term
->dispcursx
= term
->dispcursy
= -1;
1441 /* Make a new alternate screen. */
1442 newalt
= newtree234(NULL
);
1443 for (i
= 0; i
< newrows
; i
++) {
1444 line
= newline(term
, newcols
, TRUE
);
1445 addpos234(newalt
, line
, i
);
1447 if (term
->alt_screen
) {
1448 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1450 freetree234(term
->alt_screen
);
1452 term
->alt_screen
= newalt
;
1453 term
->alt_sblines
= 0;
1455 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1458 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1459 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1462 /* Check that the cursor positions are still valid. */
1463 if (term
->savecurs
.y
< 0)
1464 term
->savecurs
.y
= 0;
1465 if (term
->savecurs
.y
>= newrows
)
1466 term
->savecurs
.y
= newrows
- 1;
1467 if (term
->curs
.y
< 0)
1469 if (term
->curs
.y
>= newrows
)
1470 term
->curs
.y
= newrows
- 1;
1471 if (term
->curs
.x
>= newcols
)
1472 term
->curs
.x
= newcols
- 1;
1473 term
->alt_x
= term
->alt_y
= 0;
1474 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1476 term
->rows
= newrows
;
1477 term
->cols
= newcols
;
1478 term
->savelines
= newsavelines
;
1480 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1484 if (term
->resize_fn
)
1485 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1489 * Hand a function and context pointer to the terminal which it can
1490 * use to notify a back end of resizes.
1492 void term_provide_resize_fn(Terminal
*term
,
1493 void (*resize_fn
)(void *, int, int),
1496 term
->resize_fn
= resize_fn
;
1497 term
->resize_ctx
= resize_ctx
;
1498 if (term
->cols
> 0 && term
->rows
> 0)
1499 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1502 /* Find the bottom line on the screen that has any content.
1503 * If only the top line has content, returns 0.
1504 * If no lines have content, return -1.
1506 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1509 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1510 termline
*line
= index234(screen
, i
);
1512 for (j
= 0; j
< line
->cols
; j
++)
1513 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1515 if (j
!= line
->cols
) break;
1521 * Swap screens. If `reset' is TRUE and we have been asked to
1522 * switch to the alternate screen, we must bring most of its
1523 * configuration from the main screen and erase the contents of the
1524 * alternate screen completely. (This is even true if we're already
1525 * on it! Blame xterm.)
1527 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1533 reset
= FALSE
; /* do no weird resetting if which==0 */
1535 if (which
!= term
->alt_which
) {
1536 term
->alt_which
= which
;
1538 ttr
= term
->alt_screen
;
1539 term
->alt_screen
= term
->screen
;
1541 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1543 if (!reset
&& !keep_cur_pos
)
1544 term
->curs
.x
= term
->alt_x
;
1547 if (!reset
&& !keep_cur_pos
)
1548 term
->curs
.y
= term
->alt_y
;
1551 if (!reset
) term
->marg_t
= term
->alt_t
;
1554 if (!reset
) term
->marg_b
= term
->alt_b
;
1557 if (!reset
) term
->dec_om
= term
->alt_om
;
1560 if (!reset
) term
->wrap
= term
->alt_wrap
;
1563 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1564 term
->alt_wnext
= t
;
1566 if (!reset
) term
->insert
= term
->alt_ins
;
1569 if (!reset
) term
->cset
= term
->alt_cset
;
1572 if (!reset
) term
->utf
= term
->alt_utf
;
1575 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1576 term
->alt_sco_acs
= t
;
1579 if (reset
&& term
->screen
) {
1581 * Yes, this _is_ supposed to honour background-colour-erase.
1583 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1588 * Update the scroll bar.
1590 static void update_sbar(Terminal
*term
)
1592 int nscroll
= sblines(term
);
1593 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1594 nscroll
+ term
->disptop
, term
->rows
);
1598 * Check whether the region bounded by the two pointers intersects
1599 * the scroll region, and de-select the on-screen selection if so.
1601 static void check_selection(Terminal
*term
, pos from
, pos to
)
1603 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1608 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1609 * for backward.) `sb' is TRUE if the scrolling is permitted to
1610 * affect the scrollback buffer.
1612 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1615 int i
, seltop
, olddisptop
, shift
;
1617 if (topline
!= 0 || term
->alt_which
!= 0)
1620 olddisptop
= term
->disptop
;
1624 line
= delpos234(term
->screen
, botline
);
1625 resizeline(term
, line
, term
->cols
);
1626 for (i
= 0; i
< term
->cols
; i
++)
1627 copy_termchar(line
, i
, &term
->erase_char
);
1628 line
->lattr
= LATTR_NORM
;
1629 addpos234(term
->screen
, line
, topline
);
1631 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1633 if (term
->selstart
.y
> botline
) {
1634 term
->selstart
.y
= botline
+ 1;
1635 term
->selstart
.x
= 0;
1638 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1640 if (term
->selend
.y
> botline
) {
1641 term
->selend
.y
= botline
+ 1;
1650 line
= delpos234(term
->screen
, topline
);
1651 cc_check(line
); /* XXX-REMOVE-BEFORE-RELEASE */
1652 if (sb
&& term
->savelines
> 0) {
1653 int sblen
= count234(term
->scrollback
);
1655 * We must add this line to the scrollback. We'll
1656 * remove a line from the top of the scrollback if
1657 * the scrollback is full.
1659 if (sblen
== term
->savelines
) {
1660 unsigned char *cline
;
1663 cline
= delpos234(term
->scrollback
, 0);
1666 term
->tempsblines
+= 1;
1668 addpos234(term
->scrollback
, compressline(line
), sblen
);
1670 line
= newline(term
, term
->cols
, TRUE
);
1673 * If the user is currently looking at part of the
1674 * scrollback, and they haven't enabled any options
1675 * that are going to reset the scrollback as a
1676 * result of this movement, then the chances are
1677 * they'd like to keep looking at the same line. So
1678 * we move their viewpoint at the same rate as the
1679 * scroll, at least until their viewpoint hits the
1680 * top end of the scrollback buffer, at which point
1681 * we don't have the choice any more.
1683 * Thanks to Jan Holmen Holsten for the idea and
1684 * initial implementation.
1686 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1689 resizeline(term
, line
, term
->cols
);
1690 for (i
= 0; i
< term
->cols
; i
++)
1691 copy_termchar(line
, i
, &term
->erase_char
);
1692 line
->lattr
= LATTR_NORM
;
1693 addpos234(term
->screen
, line
, botline
);
1696 * If the selection endpoints move into the scrollback,
1697 * we keep them moving until they hit the top. However,
1698 * of course, if the line _hasn't_ moved into the
1699 * scrollback then we don't do this, and cut them off
1700 * at the top of the scroll region.
1702 * This applies to selstart and selend (for an existing
1703 * selection), and also selanchor (for one being
1704 * selected as we speak).
1706 seltop
= sb ?
-term
->savelines
: topline
;
1708 if (term
->selstate
!= NO_SELECTION
) {
1709 if (term
->selstart
.y
>= seltop
&&
1710 term
->selstart
.y
<= botline
) {
1712 if (term
->selstart
.y
< seltop
) {
1713 term
->selstart
.y
= seltop
;
1714 term
->selstart
.x
= 0;
1717 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1719 if (term
->selend
.y
< seltop
) {
1720 term
->selend
.y
= seltop
;
1724 if (term
->selanchor
.y
>= seltop
&&
1725 term
->selanchor
.y
<= botline
) {
1726 term
->selanchor
.y
--;
1727 if (term
->selanchor
.y
< seltop
) {
1728 term
->selanchor
.y
= seltop
;
1729 term
->selanchor
.x
= 0;
1737 #ifdef OPTIMISE_SCROLL
1738 shift
+= term
->disptop
- olddisptop
;
1739 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1740 scroll_display(term
, topline
, botline
, shift
);
1741 #endif /* OPTIMISE_SCROLL */
1744 #ifdef OPTIMISE_SCROLL
1746 * Add a scroll of a region on the screen into the pending scroll list.
1747 * `lines' is +ve for scrolling forward, -ve for backward.
1749 * If the scroll is on the same area as the last scroll in the list,
1752 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
1754 struct scrollregion
*newscroll
;
1755 if (term
->scrolltail
&&
1756 term
->scrolltail
->topline
== topline
&&
1757 term
->scrolltail
->botline
== botline
) {
1758 term
->scrolltail
->lines
+= lines
;
1760 newscroll
= snew(struct scrollregion
);
1761 newscroll
->topline
= topline
;
1762 newscroll
->botline
= botline
;
1763 newscroll
->lines
= lines
;
1764 newscroll
->next
= NULL
;
1766 if (!term
->scrollhead
)
1767 term
->scrollhead
= newscroll
;
1769 term
->scrolltail
->next
= newscroll
;
1770 term
->scrolltail
= newscroll
;
1775 * Scroll the physical display, and our conception of it in disptext.
1777 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
1779 int distance
, nlines
, i
, j
;
1781 distance
= lines
> 0 ? lines
: -lines
;
1782 nlines
= botline
- topline
+ 1 - distance
;
1784 for (i
= 0; i
< nlines
; i
++)
1785 for (j
= 0; j
< term
->cols
; j
++)
1786 copy_termchar(term
->disptext
[start
+i
], j
,
1787 term
->disptext
[start
+i
+distance
]->chars
+j
);
1788 if (term
->dispcursy
>= 0 &&
1789 term
->dispcursy
>= topline
+ distance
&&
1790 term
->dispcursy
< topline
+ distance
+ nlines
)
1791 term
->dispcursy
-= distance
;
1792 for (i
= 0; i
< distance
; i
++)
1793 for (j
= 0; j
< term
->cols
; j
++)
1794 term
->disptext
[start
+nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1796 for (i
= nlines
; i
-- ;)
1797 for (j
= 0; j
< term
->cols
; j
++)
1798 copy_termchar(term
->disptext
[start
+i
+distance
], j
,
1799 term
->disptext
[start
+i
]->chars
+j
);
1800 if (term
->dispcursy
>= 0 &&
1801 term
->dispcursy
>= topline
&&
1802 term
->dispcursy
< topline
+ nlines
)
1803 term
->dispcursy
+= distance
;
1804 for (i
= 0; i
< distance
; i
++)
1805 for (j
= 0; j
< term
->cols
; j
++)
1806 term
->disptext
[start
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
1808 save_scroll(term
, topline
, botline
, lines
);
1810 #endif /* OPTIMISE_SCROLL */
1813 * Move the cursor to a given position, clipping at boundaries. We
1814 * may or may not want to clip at the scroll margin: marg_clip is 0
1815 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
1816 * even _being_ outside the margins.
1818 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
1822 if (x
>= term
->cols
)
1825 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
1828 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
1834 if (y
>= term
->rows
)
1838 term
->wrapnext
= FALSE
;
1842 * Save or restore the cursor and SGR mode.
1844 static void save_cursor(Terminal
*term
, int save
)
1847 term
->savecurs
= term
->curs
;
1848 term
->save_attr
= term
->curr_attr
;
1849 term
->save_cset
= term
->cset
;
1850 term
->save_utf
= term
->utf
;
1851 term
->save_wnext
= term
->wrapnext
;
1852 term
->save_csattr
= term
->cset_attr
[term
->cset
];
1853 term
->save_sco_acs
= term
->sco_acs
;
1855 term
->curs
= term
->savecurs
;
1856 /* Make sure the window hasn't shrunk since the save */
1857 if (term
->curs
.x
>= term
->cols
)
1858 term
->curs
.x
= term
->cols
- 1;
1859 if (term
->curs
.y
>= term
->rows
)
1860 term
->curs
.y
= term
->rows
- 1;
1862 term
->curr_attr
= term
->save_attr
;
1863 term
->cset
= term
->save_cset
;
1864 term
->utf
= term
->save_utf
;
1865 term
->wrapnext
= term
->save_wnext
;
1867 * wrapnext might reset to False if the x position is no
1868 * longer at the rightmost edge.
1870 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
1871 term
->wrapnext
= FALSE
;
1872 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
1873 term
->sco_acs
= term
->save_sco_acs
;
1874 set_erase_char(term
);
1879 * This function is called before doing _anything_ which affects
1880 * only part of a line of text. It is used to mark the boundary
1881 * between two character positions, and it indicates that some sort
1882 * of effect is going to happen on only one side of that boundary.
1884 * The effect of this function is to check whether a CJK
1885 * double-width character is straddling the boundary, and to remove
1886 * it and replace it with two spaces if so. (Of course, one or
1887 * other of those spaces is then likely to be replaced with
1888 * something else again, as a result of whatever happens next.)
1890 * Also, if the boundary is at the right-hand _edge_ of the screen,
1891 * it implies something deliberate is being done to the rightmost
1892 * column position; hence we must clear LATTR_WRAPPED2.
1894 * The input to the function is the coordinates of the _second_
1895 * character of the pair.
1897 static void check_boundary(Terminal
*term
, int x
, int y
)
1901 /* Validate input coordinates, just in case. */
1902 if (x
== 0 || x
> term
->cols
)
1905 ldata
= scrlineptr(y
);
1906 if (x
== term
->cols
) {
1907 ldata
->lattr
&= ~LATTR_WRAPPED2
;
1909 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
1910 clear_cc(ldata
, x
-1);
1912 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
1913 ldata
->chars
[x
] = ldata
->chars
[x
-1];
1919 * Erase a large portion of the screen: the whole screen, or the
1920 * whole line, or parts thereof.
1922 static void erase_lots(Terminal
*term
,
1923 int line_only
, int from_begin
, int to_end
)
1927 int erasing_lines_from_top
= 0;
1930 start
.y
= term
->curs
.y
;
1932 end
.y
= term
->curs
.y
+ 1;
1934 erase_lattr
= FALSE
;
1949 if (!from_begin
|| !to_end
)
1950 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1951 check_selection(term
, start
, end
);
1953 /* Clear screen also forces a full window redraw, just in case. */
1954 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1955 term_invalidate(term
);
1957 /* Lines scrolled away shouldn't be brought back on if the terminal
1959 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
1960 erasing_lines_from_top
= 1;
1962 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
1963 /* If it's a whole number of lines, starting at the top, and
1964 * we're fully erasing them, erase by scrolling and keep the
1965 * lines in the scrollback. */
1966 int scrolllines
= end
.y
;
1967 if (end
.y
== term
->rows
) {
1968 /* Shrink until we find a non-empty row.*/
1969 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1971 if (scrolllines
> 0)
1972 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1974 termline
*ldata
= scrlineptr(start
.y
);
1975 while (poslt(start
, end
)) {
1976 if (start
.x
== term
->cols
) {
1978 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1980 ldata
->lattr
= LATTR_NORM
;
1982 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
1984 if (incpos(start
) && start
.y
< term
->rows
) {
1985 ldata
= scrlineptr(start
.y
);
1990 /* After an erase of lines from the top of the screen, we shouldn't
1991 * bring the lines back again if the terminal enlarges (since the user or
1992 * application has explictly thrown them away). */
1993 if (erasing_lines_from_top
&& !(term
->alt_which
))
1994 term
->tempsblines
= 0;
1998 * Insert or delete characters within the current line. n is +ve if
1999 * insertion is desired, and -ve for deletion.
2001 static void insch(Terminal
*term
, int n
)
2003 int dir
= (n
< 0 ?
-1 : +1);
2008 n
= (n
< 0 ?
-n
: n
);
2009 if (n
> term
->cols
- term
->curs
.x
)
2010 n
= term
->cols
- term
->curs
.x
;
2011 m
= term
->cols
- term
->curs
.x
- n
;
2012 cursplus
.y
= term
->curs
.y
;
2013 cursplus
.x
= term
->curs
.x
+ n
;
2014 check_selection(term
, term
->curs
, cursplus
);
2015 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2017 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2018 ldata
= scrlineptr(term
->curs
.y
);
2020 for (j
= 0; j
< m
; j
++)
2021 move_termchar(ldata
,
2022 ldata
->chars
+ term
->curs
.x
+ j
,
2023 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2025 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2028 move_termchar(ldata
,
2029 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2030 ldata
->chars
+ term
->curs
.x
+ j
);
2032 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2037 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2038 * whether the mode is a DEC private one or a normal one.)
2040 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2042 unsigned long ticks
;
2046 case 1: /* DECCKM: application cursor keys */
2047 term
->app_cursor_keys
= state
;
2049 case 2: /* DECANM: VT52 mode */
2050 term
->vt52_mode
= !state
;
2051 if (term
->vt52_mode
) {
2052 term
->blink_is_real
= FALSE
;
2053 term
->vt52_bold
= FALSE
;
2055 term
->blink_is_real
= term
->cfg
.blinktext
;
2058 case 3: /* DECCOLM: 80/132 columns */
2060 if (!term
->cfg
.no_remote_resize
)
2061 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2062 term
->reset_132
= state
;
2063 term
->alt_t
= term
->marg_t
= 0;
2064 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2065 move(term
, 0, 0, 0);
2066 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2068 case 5: /* DECSCNM: reverse video */
2070 * Toggle reverse video. If we receive an OFF within the
2071 * visual bell timeout period after an ON, we trigger an
2072 * effective visual bell, so that ESC[?5hESC[?5l will
2073 * always be an actually _visible_ visual bell.
2075 ticks
= GETTICKCOUNT();
2076 /* turn off a previous vbell to avoid inconsistencies */
2077 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2078 term
->in_vbell
= FALSE
;
2079 if (term
->rvideo
&& !state
&& /* we're turning it off... */
2080 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
2081 /* If there's no vbell timeout already, or this one lasts
2082 * longer, replace vbell_timeout with ours. */
2083 if (!term
->in_vbell
||
2084 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
2086 term
->vbell_startpoint
= term
->rvbell_startpoint
;
2087 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
2088 } else if (!term
->rvideo
&& state
) {
2089 /* This is an ON, so we notice the time and save it. */
2090 term
->rvbell_startpoint
= ticks
;
2092 term
->rvideo
= state
;
2093 term
->seen_disp_event
= TRUE
;
2097 case 6: /* DECOM: DEC origin mode */
2098 term
->dec_om
= state
;
2100 case 7: /* DECAWM: auto wrap */
2103 case 8: /* DECARM: auto key repeat */
2104 term
->repeat_off
= !state
;
2106 case 10: /* DECEDM: set local edit mode */
2107 term
->term_editing
= state
;
2108 if (term
->ldisc
) /* cause ldisc to notice changes */
2109 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2111 case 25: /* DECTCEM: enable/disable cursor */
2112 compatibility2(OTHER
, VT220
);
2113 term
->cursor_on
= state
;
2114 term
->seen_disp_event
= TRUE
;
2116 case 47: /* alternate screen */
2117 compatibility(OTHER
);
2119 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2122 case 1000: /* xterm mouse 1 */
2123 term
->xterm_mouse
= state ?
1 : 0;
2124 set_raw_mouse_mode(term
->frontend
, state
);
2126 case 1002: /* xterm mouse 2 */
2127 term
->xterm_mouse
= state ?
2 : 0;
2128 set_raw_mouse_mode(term
->frontend
, state
);
2130 case 1047: /* alternate screen */
2131 compatibility(OTHER
);
2133 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2136 case 1048: /* save/restore cursor */
2137 if (!term
->cfg
.no_alt_screen
)
2138 save_cursor(term
, state
);
2139 if (!state
) term
->seen_disp_event
= TRUE
;
2141 case 1049: /* cursor & alternate screen */
2142 if (state
&& !term
->cfg
.no_alt_screen
)
2143 save_cursor(term
, state
);
2144 if (!state
) term
->seen_disp_event
= TRUE
;
2145 compatibility(OTHER
);
2147 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2148 if (!state
&& !term
->cfg
.no_alt_screen
)
2149 save_cursor(term
, state
);
2154 case 4: /* IRM: set insert mode */
2155 compatibility(VT102
);
2156 term
->insert
= state
;
2158 case 12: /* SRM: set echo mode */
2159 term
->term_echoing
= !state
;
2160 if (term
->ldisc
) /* cause ldisc to notice changes */
2161 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2163 case 20: /* LNM: Return sends ... */
2164 term
->cr_lf_return
= state
;
2166 case 34: /* WYULCURM: Make cursor BIG */
2167 compatibility2(OTHER
, VT220
);
2168 term
->big_cursor
= !state
;
2173 * Process an OSC sequence: set window title or icon name.
2175 static void do_osc(Terminal
*term
)
2178 while (term
->osc_strlen
--)
2179 term
->wordness
[(unsigned char)
2180 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2182 term
->osc_string
[term
->osc_strlen
] = '\0';
2183 switch (term
->esc_args
[0]) {
2186 if (!term
->cfg
.no_remote_wintitle
)
2187 set_icon(term
->frontend
, term
->osc_string
);
2188 if (term
->esc_args
[0] == 1)
2190 /* fall through: parameter 0 means set both */
2193 if (!term
->cfg
.no_remote_wintitle
)
2194 set_title(term
->frontend
, term
->osc_string
);
2201 * ANSI printing routines.
2203 static void term_print_setup(Terminal
*term
)
2205 bufchain_clear(&term
->printer_buf
);
2206 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2208 static void term_print_flush(Terminal
*term
)
2213 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2214 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2217 printer_job_data(term
->print_job
, data
, len
);
2218 bufchain_consume(&term
->printer_buf
, len
);
2221 static void term_print_finish(Terminal
*term
)
2227 if (!term
->printing
&& !term
->only_printing
)
2228 return; /* we need do nothing */
2230 term_print_flush(term
);
2231 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2232 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2234 if (c
== '\033' || c
== '\233') {
2235 bufchain_consume(&term
->printer_buf
, size
);
2238 printer_job_data(term
->print_job
, &c
, 1);
2239 bufchain_consume(&term
->printer_buf
, 1);
2242 printer_finish_job(term
->print_job
);
2243 term
->print_job
= NULL
;
2244 term
->printing
= term
->only_printing
= FALSE
;
2248 * Remove everything currently in `inbuf' and stick it up on the
2249 * in-memory display. There's a big state machine in here to
2250 * process escape sequences...
2252 void term_out(Terminal
*term
)
2256 unsigned char localbuf
[256], *chars
;
2261 chars
= NULL
; /* placate compiler warnings */
2262 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
2266 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2267 if (nchars
> sizeof(localbuf
))
2268 nchars
= sizeof(localbuf
);
2269 memcpy(localbuf
, ret
, nchars
);
2270 bufchain_consume(&term
->inbuf
, nchars
);
2272 assert(chars
!= NULL
);
2278 * Optionally log the session traffic to a file. Useful for
2279 * debugging and possibly also useful for actual logging.
2281 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2282 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2288 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2289 * be able to display 8-bit characters, but I'll let that go 'cause
2294 * If we're printing, add the character to the printer
2297 if (term
->printing
) {
2298 bufchain_add(&term
->printer_buf
, &c
, 1);
2301 * If we're in print-only mode, we use a much simpler
2302 * state machine designed only to recognise the ESC[4i
2303 * termination sequence.
2305 if (term
->only_printing
) {
2307 term
->print_state
= 1;
2308 else if (c
== (unsigned char)'\233')
2309 term
->print_state
= 2;
2310 else if (c
== '[' && term
->print_state
== 1)
2311 term
->print_state
= 2;
2312 else if (c
== '4' && term
->print_state
== 2)
2313 term
->print_state
= 3;
2314 else if (c
== 'i' && term
->print_state
== 3)
2315 term
->print_state
= 4;
2317 term
->print_state
= 0;
2318 if (term
->print_state
== 4) {
2319 term_print_finish(term
);
2325 /* First see about all those translations. */
2326 if (term
->termstate
== TOPLEVEL
) {
2328 switch (term
->utf_state
) {
2331 /* UTF-8 must be stateless so we ignore iso2022. */
2332 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2333 c
= term
->ucsdata
->unitab_ctrl
[c
];
2334 else c
= ((unsigned char)c
) | CSET_ASCII
;
2336 } else if ((c
& 0xe0) == 0xc0) {
2337 term
->utf_size
= term
->utf_state
= 1;
2338 term
->utf_char
= (c
& 0x1f);
2339 } else if ((c
& 0xf0) == 0xe0) {
2340 term
->utf_size
= term
->utf_state
= 2;
2341 term
->utf_char
= (c
& 0x0f);
2342 } else if ((c
& 0xf8) == 0xf0) {
2343 term
->utf_size
= term
->utf_state
= 3;
2344 term
->utf_char
= (c
& 0x07);
2345 } else if ((c
& 0xfc) == 0xf8) {
2346 term
->utf_size
= term
->utf_state
= 4;
2347 term
->utf_char
= (c
& 0x03);
2348 } else if ((c
& 0xfe) == 0xfc) {
2349 term
->utf_size
= term
->utf_state
= 5;
2350 term
->utf_char
= (c
& 0x01);
2361 if ((c
& 0xC0) != 0x80) {
2364 term
->utf_state
= 0;
2367 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2368 if (--term
->utf_state
)
2373 /* Is somebody trying to be evil! */
2375 (c
< 0x800 && term
->utf_size
>= 2) ||
2376 (c
< 0x10000 && term
->utf_size
>= 3) ||
2377 (c
< 0x200000 && term
->utf_size
>= 4) ||
2378 (c
< 0x4000000 && term
->utf_size
>= 5))
2381 /* Unicode line separator and paragraph separator are CR-LF */
2382 if (c
== 0x2028 || c
== 0x2029)
2385 /* High controls are probably a Baaad idea too. */
2389 /* The UTF-16 surrogates are not nice either. */
2390 /* The standard give the option of decoding these:
2391 * I don't want to! */
2392 if (c
>= 0xD800 && c
< 0xE000)
2395 /* ISO 10646 characters now limited to UTF-16 range. */
2399 /* This is currently a TagPhobic application.. */
2400 if (c
>= 0xE0000 && c
<= 0xE007F)
2403 /* U+FEFF is best seen as a null. */
2406 /* But U+FFFE is an error. */
2407 if (c
== 0xFFFE || c
== 0xFFFF)
2412 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2413 else if(term
->sco_acs
&&
2414 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2416 if (term
->sco_acs
== 2) c
|= 0x80;
2419 switch (term
->cset_attr
[term
->cset
]) {
2421 * Linedraw characters are different from 'ESC ( B'
2422 * only for a small range. For ones outside that
2423 * range, make sure we use the same font as well as
2424 * the same encoding.
2427 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2428 c
= term
->ucsdata
->unitab_ctrl
[c
];
2430 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2434 /* If UK-ASCII, make the '#' a LineDraw Pound */
2436 c
= '}' | CSET_LINEDRW
;
2439 /*FALLTHROUGH*/ case CSET_ASCII
:
2440 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2441 c
= term
->ucsdata
->unitab_ctrl
[c
];
2443 c
= ((unsigned char) c
) | CSET_ASCII
;
2446 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2452 /* How about C1 controls ? */
2453 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2454 !term
->vt52_mode
&& has_compat(VT220
)) {
2455 term
->termstate
= SEEN_ESC
;
2456 term
->esc_query
= FALSE
;
2457 c
= '@' + (c
& 0x1F);
2460 /* Or the GL control. */
2461 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2462 if (term
->curs
.x
&& !term
->wrapnext
)
2464 term
->wrapnext
= FALSE
;
2465 /* destructive backspace might be disabled */
2466 if (!term
->cfg
.no_dbackspace
) {
2467 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2468 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2469 copy_termchar(scrlineptr(term
->curs
.y
),
2470 term
->curs
.x
, &term
->erase_char
);
2473 /* Or normal C0 controls. */
2474 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2476 case '\005': /* ENQ: terminal type query */
2477 /* Strictly speaking this is VT100 but a VT100 defaults to
2478 * no response. Other terminals respond at their option.
2480 * Don't put a CR in the default string as this tends to
2481 * upset some weird software.
2483 * An xterm returns "xterm" (5 characters)
2485 compatibility(ANSIMIN
);
2487 char abuf
[256], *s
, *d
;
2489 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
2491 if (*s
>= 'a' && *s
<= 'z')
2492 *d
++ = (*s
- ('a' - 1));
2493 else if ((*s
>= '@' && *s
<= '_') ||
2494 *s
== '?' || (*s
& 0x80))
2499 } else if (*s
== '^') {
2504 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2508 case '\007': /* BEL: Bell */
2510 struct beeptime
*newbeep
;
2511 unsigned long ticks
;
2513 ticks
= GETTICKCOUNT();
2515 if (!term
->beep_overloaded
) {
2516 newbeep
= snew(struct beeptime
);
2517 newbeep
->ticks
= ticks
;
2518 newbeep
->next
= NULL
;
2519 if (!term
->beephead
)
2520 term
->beephead
= newbeep
;
2522 term
->beeptail
->next
= newbeep
;
2523 term
->beeptail
= newbeep
;
2528 * Throw out any beeps that happened more than
2531 while (term
->beephead
&&
2532 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2533 struct beeptime
*tmp
= term
->beephead
;
2534 term
->beephead
= tmp
->next
;
2536 if (!term
->beephead
)
2537 term
->beeptail
= NULL
;
2541 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2542 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2544 * If we're currently overloaded and the
2545 * last beep was more than s seconds ago,
2546 * leave overload mode.
2548 term
->beep_overloaded
= FALSE
;
2549 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2550 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2552 * Now, if we have n or more beeps
2553 * remaining in the queue, go into overload
2556 term
->beep_overloaded
= TRUE
;
2558 term
->lastbeep
= ticks
;
2561 * Perform an actual beep if we're not overloaded.
2563 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2564 beep(term
->frontend
, term
->cfg
.beep
);
2565 if (term
->cfg
.beep
== BELL_VISUAL
) {
2566 term
->in_vbell
= TRUE
;
2567 term
->vbell_startpoint
= ticks
;
2571 term
->seen_disp_event
= TRUE
;
2574 case '\b': /* BS: Back space */
2575 if (term
->curs
.x
== 0 &&
2576 (term
->curs
.y
== 0 || term
->wrap
== 0))
2578 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2579 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2580 else if (term
->wrapnext
)
2581 term
->wrapnext
= FALSE
;
2584 term
->seen_disp_event
= TRUE
;
2586 case '\016': /* LS1: Locking-shift one */
2587 compatibility(VT100
);
2590 case '\017': /* LS0: Locking-shift zero */
2591 compatibility(VT100
);
2594 case '\033': /* ESC: Escape */
2595 if (term
->vt52_mode
)
2596 term
->termstate
= VT52_ESC
;
2598 compatibility(ANSIMIN
);
2599 term
->termstate
= SEEN_ESC
;
2600 term
->esc_query
= FALSE
;
2603 case '\015': /* CR: Carriage return */
2605 term
->wrapnext
= FALSE
;
2606 term
->seen_disp_event
= TRUE
;
2607 term
->paste_hold
= 0;
2609 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2611 case '\014': /* FF: Form feed */
2612 if (has_compat(SCOANSI
)) {
2613 move(term
, 0, 0, 0);
2614 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2616 term
->wrapnext
= FALSE
;
2617 term
->seen_disp_event
= 1;
2620 case '\013': /* VT: Line tabulation */
2621 compatibility(VT100
);
2622 case '\012': /* LF: Line feed */
2623 if (term
->curs
.y
== term
->marg_b
)
2624 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2625 else if (term
->curs
.y
< term
->rows
- 1)
2627 if (term
->cfg
.lfhascr
)
2629 term
->wrapnext
= FALSE
;
2630 term
->seen_disp_event
= 1;
2631 term
->paste_hold
= 0;
2633 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2635 case '\t': /* HT: Character tabulation */
2637 pos old_curs
= term
->curs
;
2638 termline
*ldata
= scrlineptr(term
->curs
.y
);
2642 } while (term
->curs
.x
< term
->cols
- 1 &&
2643 !term
->tabs
[term
->curs
.x
]);
2645 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2646 if (term
->curs
.x
>= term
->cols
/ 2)
2647 term
->curs
.x
= term
->cols
/ 2 - 1;
2649 if (term
->curs
.x
>= term
->cols
)
2650 term
->curs
.x
= term
->cols
- 1;
2653 check_selection(term
, old_curs
, term
->curs
);
2655 term
->seen_disp_event
= TRUE
;
2659 switch (term
->termstate
) {
2661 /* Only graphic characters get this far;
2662 * ctrls are stripped above */
2664 termline
*cline
= scrlineptr(term
->curs
.y
);
2669 width
= wcwidth((wchar_t) c
);
2671 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2672 cline
->lattr
|= LATTR_WRAPPED
;
2673 if (term
->curs
.y
== term
->marg_b
)
2674 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2675 else if (term
->curs
.y
< term
->rows
- 1)
2678 term
->wrapnext
= FALSE
;
2679 cline
= scrlineptr(term
->curs
.y
);
2681 if (term
->insert
&& width
> 0)
2683 if (term
->selstate
!= NO_SELECTION
) {
2684 pos cursplus
= term
->curs
;
2686 check_selection(term
, term
->curs
, cursplus
);
2688 if (((c
& CSET_MASK
) == CSET_ASCII
||
2689 (c
& CSET_MASK
) == 0) &&
2691 logtraffic(term
->logctx
, (unsigned char) c
,
2697 * If we're about to display a double-width
2698 * character starting in the rightmost
2699 * column, then we do something special
2700 * instead. We must print a space in the
2701 * last column of the screen, then wrap;
2702 * and we also set LATTR_WRAPPED2 which
2703 * instructs subsequent cut-and-pasting not
2704 * only to splice this line to the one
2705 * after it, but to ignore the space in the
2706 * last character position as well.
2707 * (Because what was actually output to the
2708 * terminal was presumably just a sequence
2709 * of CJK characters, and we don't want a
2710 * space to be pasted in the middle of
2711 * those just because they had the
2712 * misfortune to start in the wrong parity
2713 * column. xterm concurs.)
2715 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2716 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2717 if (term
->curs
.x
== term
->cols
-1) {
2718 copy_termchar(cline
, term
->curs
.x
,
2720 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2721 if (term
->curs
.y
== term
->marg_b
)
2722 scroll(term
, term
->marg_t
, term
->marg_b
,
2724 else if (term
->curs
.y
< term
->rows
- 1)
2727 /* Now we must check_boundary again, of course. */
2728 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2729 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2733 clear_cc(cline
, term
->curs
.x
);
2734 cline
->chars
[term
->curs
.x
].chr
= c
;
2735 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2740 clear_cc(cline
, term
->curs
.x
);
2741 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2742 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2746 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2747 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2750 clear_cc(cline
, term
->curs
.x
);
2751 cline
->chars
[term
->curs
.x
].chr
= c
;
2752 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2756 if (term
->curs
.x
> 0) {
2757 int x
= term
->curs
.x
- 1;
2759 /* If we're in wrapnext state, the character
2760 * to combine with is _here_, not to our left. */
2765 * If the previous character is
2766 * UCSWIDE, back up another one.
2768 if (cline
->chars
[x
].chr
== UCSWIDE
) {
2773 add_cc(cline
, x
, c
);
2774 term
->seen_disp_event
= 1;
2781 if (term
->curs
.x
== term
->cols
) {
2783 term
->wrapnext
= TRUE
;
2784 if (term
->wrap
&& term
->vt52_mode
) {
2785 cline
->lattr
|= LATTR_WRAPPED
;
2786 if (term
->curs
.y
== term
->marg_b
)
2787 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2788 else if (term
->curs
.y
< term
->rows
- 1)
2791 term
->wrapnext
= FALSE
;
2794 term
->seen_disp_event
= 1;
2800 * This state is virtually identical to SEEN_ESC, with the
2801 * exception that we have an OSC sequence in the pipeline,
2802 * and _if_ we see a backslash, we process it.
2806 term
->termstate
= TOPLEVEL
;
2809 /* else fall through */
2811 if (c
>= ' ' && c
<= '/') {
2812 if (term
->esc_query
)
2813 term
->esc_query
= -1;
2815 term
->esc_query
= c
;
2818 term
->termstate
= TOPLEVEL
;
2819 switch (ANSI(c
, term
->esc_query
)) {
2820 case '[': /* enter CSI mode */
2821 term
->termstate
= SEEN_CSI
;
2822 term
->esc_nargs
= 1;
2823 term
->esc_args
[0] = ARG_DEFAULT
;
2824 term
->esc_query
= FALSE
;
2826 case ']': /* OSC: xterm escape sequences */
2827 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
2828 compatibility(OTHER
);
2829 term
->termstate
= SEEN_OSC
;
2830 term
->esc_args
[0] = 0;
2832 case '7': /* DECSC: save cursor */
2833 compatibility(VT100
);
2834 save_cursor(term
, TRUE
);
2836 case '8': /* DECRC: restore cursor */
2837 compatibility(VT100
);
2838 save_cursor(term
, FALSE
);
2839 term
->seen_disp_event
= TRUE
;
2841 case '=': /* DECKPAM: Keypad application mode */
2842 compatibility(VT100
);
2843 term
->app_keypad_keys
= TRUE
;
2845 case '>': /* DECKPNM: Keypad numeric mode */
2846 compatibility(VT100
);
2847 term
->app_keypad_keys
= FALSE
;
2849 case 'D': /* IND: exactly equivalent to LF */
2850 compatibility(VT100
);
2851 if (term
->curs
.y
== term
->marg_b
)
2852 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2853 else if (term
->curs
.y
< term
->rows
- 1)
2855 term
->wrapnext
= FALSE
;
2856 term
->seen_disp_event
= TRUE
;
2858 case 'E': /* NEL: exactly equivalent to CR-LF */
2859 compatibility(VT100
);
2861 if (term
->curs
.y
== term
->marg_b
)
2862 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2863 else if (term
->curs
.y
< term
->rows
- 1)
2865 term
->wrapnext
= FALSE
;
2866 term
->seen_disp_event
= TRUE
;
2868 case 'M': /* RI: reverse index - backwards LF */
2869 compatibility(VT100
);
2870 if (term
->curs
.y
== term
->marg_t
)
2871 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
2872 else if (term
->curs
.y
> 0)
2874 term
->wrapnext
= FALSE
;
2875 term
->seen_disp_event
= TRUE
;
2877 case 'Z': /* DECID: terminal type query */
2878 compatibility(VT100
);
2880 ldisc_send(term
->ldisc
, term
->id_string
,
2881 strlen(term
->id_string
), 0);
2883 case 'c': /* RIS: restore power-on settings */
2884 compatibility(VT100
);
2886 if (term
->ldisc
) /* cause ldisc to notice changes */
2887 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2888 if (term
->reset_132
) {
2889 if (!term
->cfg
.no_remote_resize
)
2890 request_resize(term
->frontend
, 80, term
->rows
);
2891 term
->reset_132
= 0;
2894 term
->seen_disp_event
= TRUE
;
2896 case 'H': /* HTS: set a tab */
2897 compatibility(VT100
);
2898 term
->tabs
[term
->curs
.x
] = TRUE
;
2901 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
2902 compatibility(VT100
);
2908 for (i
= 0; i
< term
->rows
; i
++) {
2909 ldata
= scrlineptr(i
);
2910 for (j
= 0; j
< term
->cols
; j
++) {
2911 copy_termchar(ldata
, j
,
2912 &term
->basic_erase_char
);
2913 ldata
->chars
[j
].chr
= 'E';
2915 ldata
->lattr
= LATTR_NORM
;
2918 term
->seen_disp_event
= TRUE
;
2919 scrtop
.x
= scrtop
.y
= 0;
2921 scrbot
.y
= term
->rows
;
2922 check_selection(term
, scrtop
, scrbot
);
2926 case ANSI('3', '#'):
2927 case ANSI('4', '#'):
2928 case ANSI('5', '#'):
2929 case ANSI('6', '#'):
2930 compatibility(VT100
);
2934 switch (ANSI(c
, term
->esc_query
)) {
2935 case ANSI('3', '#'): /* DECDHL: 2*height, top */
2938 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
2941 case ANSI('5', '#'): /* DECSWL: normal */
2942 nlattr
= LATTR_NORM
;
2944 default: /* case ANSI('6', '#'): DECDWL: 2*width */
2945 nlattr
= LATTR_WIDE
;
2948 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
2951 /* GZD4: G0 designate 94-set */
2952 case ANSI('A', '('):
2953 compatibility(VT100
);
2954 if (!term
->cfg
.no_remote_charset
)
2955 term
->cset_attr
[0] = CSET_GBCHR
;
2957 case ANSI('B', '('):
2958 compatibility(VT100
);
2959 if (!term
->cfg
.no_remote_charset
)
2960 term
->cset_attr
[0] = CSET_ASCII
;
2962 case ANSI('0', '('):
2963 compatibility(VT100
);
2964 if (!term
->cfg
.no_remote_charset
)
2965 term
->cset_attr
[0] = CSET_LINEDRW
;
2967 case ANSI('U', '('):
2968 compatibility(OTHER
);
2969 if (!term
->cfg
.no_remote_charset
)
2970 term
->cset_attr
[0] = CSET_SCOACS
;
2972 /* G1D4: G1-designate 94-set */
2973 case ANSI('A', ')'):
2974 compatibility(VT100
);
2975 if (!term
->cfg
.no_remote_charset
)
2976 term
->cset_attr
[1] = CSET_GBCHR
;
2978 case ANSI('B', ')'):
2979 compatibility(VT100
);
2980 if (!term
->cfg
.no_remote_charset
)
2981 term
->cset_attr
[1] = CSET_ASCII
;
2983 case ANSI('0', ')'):
2984 compatibility(VT100
);
2985 if (!term
->cfg
.no_remote_charset
)
2986 term
->cset_attr
[1] = CSET_LINEDRW
;
2988 case ANSI('U', ')'):
2989 compatibility(OTHER
);
2990 if (!term
->cfg
.no_remote_charset
)
2991 term
->cset_attr
[1] = CSET_SCOACS
;
2993 /* DOCS: Designate other coding system */
2994 case ANSI('8', '%'): /* Old Linux code */
2995 case ANSI('G', '%'):
2996 compatibility(OTHER
);
2997 if (!term
->cfg
.no_remote_charset
)
3000 case ANSI('@', '%'):
3001 compatibility(OTHER
);
3002 if (!term
->cfg
.no_remote_charset
)
3008 term
->termstate
= TOPLEVEL
; /* default */
3010 if (term
->esc_nargs
<= ARGS_MAX
) {
3011 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3012 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3013 term
->esc_args
[term
->esc_nargs
- 1] =
3014 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3016 term
->termstate
= SEEN_CSI
;
3017 } else if (c
== ';') {
3018 if (++term
->esc_nargs
<= ARGS_MAX
)
3019 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
3020 term
->termstate
= SEEN_CSI
;
3021 } else if (c
< '@') {
3022 if (term
->esc_query
)
3023 term
->esc_query
= -1;
3025 term
->esc_query
= TRUE
;
3027 term
->esc_query
= c
;
3028 term
->termstate
= SEEN_CSI
;
3030 switch (ANSI(c
, term
->esc_query
)) {
3031 case 'A': /* CUU: move up N lines */
3032 move(term
, term
->curs
.x
,
3033 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3034 term
->seen_disp_event
= TRUE
;
3036 case 'e': /* VPR: move down N lines */
3037 compatibility(ANSI
);
3039 case 'B': /* CUD: Cursor down */
3040 move(term
, term
->curs
.x
,
3041 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3042 term
->seen_disp_event
= TRUE
;
3044 case ANSI('c', '>'): /* DA: report xterm version */
3045 compatibility(OTHER
);
3046 /* this reports xterm version 136 so that VIM can
3047 use the drag messages from the mouse reporting */
3049 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3051 case 'a': /* HPR: move right N cols */
3052 compatibility(ANSI
);
3054 case 'C': /* CUF: Cursor right */
3055 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3057 term
->seen_disp_event
= TRUE
;
3059 case 'D': /* CUB: move left N cols */
3060 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3062 term
->seen_disp_event
= TRUE
;
3064 case 'E': /* CNL: move down N lines and CR */
3065 compatibility(ANSI
);
3067 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3068 term
->seen_disp_event
= TRUE
;
3070 case 'F': /* CPL: move up N lines and CR */
3071 compatibility(ANSI
);
3073 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3074 term
->seen_disp_event
= TRUE
;
3077 case '`': /* HPA: set horizontal posn */
3078 compatibility(ANSI
);
3079 move(term
, def(term
->esc_args
[0], 1) - 1,
3081 term
->seen_disp_event
= TRUE
;
3083 case 'd': /* VPA: set vertical posn */
3084 compatibility(ANSI
);
3085 move(term
, term
->curs
.x
,
3086 ((term
->dec_om ? term
->marg_t
: 0) +
3087 def(term
->esc_args
[0], 1) - 1),
3088 (term
->dec_om ?
2 : 0));
3089 term
->seen_disp_event
= TRUE
;
3092 case 'f': /* HVP: set horz and vert posns at once */
3093 if (term
->esc_nargs
< 2)
3094 term
->esc_args
[1] = ARG_DEFAULT
;
3095 move(term
, def(term
->esc_args
[1], 1) - 1,
3096 ((term
->dec_om ? term
->marg_t
: 0) +
3097 def(term
->esc_args
[0], 1) - 1),
3098 (term
->dec_om ?
2 : 0));
3099 term
->seen_disp_event
= TRUE
;
3101 case 'J': /* ED: erase screen or parts of it */
3103 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3106 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3109 term
->seen_disp_event
= TRUE
;
3111 case 'K': /* EL: erase line or parts of it */
3113 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3116 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3118 term
->seen_disp_event
= TRUE
;
3120 case 'L': /* IL: insert lines */
3121 compatibility(VT102
);
3122 if (term
->curs
.y
<= term
->marg_b
)
3123 scroll(term
, term
->curs
.y
, term
->marg_b
,
3124 -def(term
->esc_args
[0], 1), FALSE
);
3125 term
->seen_disp_event
= TRUE
;
3127 case 'M': /* DL: delete lines */
3128 compatibility(VT102
);
3129 if (term
->curs
.y
<= term
->marg_b
)
3130 scroll(term
, term
->curs
.y
, term
->marg_b
,
3131 def(term
->esc_args
[0], 1),
3133 term
->seen_disp_event
= TRUE
;
3135 case '@': /* ICH: insert chars */
3136 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3137 compatibility(VT102
);
3138 insch(term
, def(term
->esc_args
[0], 1));
3139 term
->seen_disp_event
= TRUE
;
3141 case 'P': /* DCH: delete chars */
3142 compatibility(VT102
);
3143 insch(term
, -def(term
->esc_args
[0], 1));
3144 term
->seen_disp_event
= TRUE
;
3146 case 'c': /* DA: terminal type query */
3147 compatibility(VT100
);
3148 /* This is the response for a VT102 */
3150 ldisc_send(term
->ldisc
, term
->id_string
,
3151 strlen(term
->id_string
), 0);
3153 case 'n': /* DSR: cursor position query */
3155 if (term
->esc_args
[0] == 6) {
3157 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3159 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3160 } else if (term
->esc_args
[0] == 5) {
3161 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3165 case 'h': /* SM: toggle modes to high */
3167 compatibility(VT100
);
3170 for (i
= 0; i
< term
->esc_nargs
; i
++)
3171 toggle_mode(term
, term
->esc_args
[i
],
3172 term
->esc_query
, TRUE
);
3175 case 'i': /* MC: Media copy */
3177 compatibility(VT100
);
3179 if (term
->esc_nargs
!= 1) break;
3180 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3181 term
->printing
= TRUE
;
3182 term
->only_printing
= !term
->esc_query
;
3183 term
->print_state
= 0;
3184 term_print_setup(term
);
3185 } else if (term
->esc_args
[0] == 4 &&
3187 term_print_finish(term
);
3191 case 'l': /* RM: toggle modes to low */
3193 compatibility(VT100
);
3196 for (i
= 0; i
< term
->esc_nargs
; i
++)
3197 toggle_mode(term
, term
->esc_args
[i
],
3198 term
->esc_query
, FALSE
);
3201 case 'g': /* TBC: clear tabs */
3202 compatibility(VT100
);
3203 if (term
->esc_nargs
== 1) {
3204 if (term
->esc_args
[0] == 0) {
3205 term
->tabs
[term
->curs
.x
] = FALSE
;
3206 } else if (term
->esc_args
[0] == 3) {
3208 for (i
= 0; i
< term
->cols
; i
++)
3209 term
->tabs
[i
] = FALSE
;
3213 case 'r': /* DECSTBM: set scroll margins */
3214 compatibility(VT100
);
3215 if (term
->esc_nargs
<= 2) {
3217 top
= def(term
->esc_args
[0], 1) - 1;
3218 bot
= (term
->esc_nargs
<= 1
3219 || term
->esc_args
[1] == 0 ?
3221 def(term
->esc_args
[1], term
->rows
)) - 1;
3222 if (bot
>= term
->rows
)
3223 bot
= term
->rows
- 1;
3224 /* VTTEST Bug 9 - if region is less than 2 lines
3225 * don't change region.
3227 if (bot
- top
> 0) {
3232 * I used to think the cursor should be
3233 * placed at the top of the newly marginned
3234 * area. Apparently not: VMS TPU falls over
3237 * Well actually it should for
3240 term
->curs
.y
= (term
->dec_om ?
3242 term
->seen_disp_event
= TRUE
;
3246 case 'm': /* SGR: set graphics rendition */
3249 * A VT100 without the AVO only had one
3250 * attribute, either underline or
3251 * reverse video depending on the
3252 * cursor type, this was selected by
3256 * This is sometimes DIM, eg on the
3259 * This is sometimes INVIS various ANSI.
3261 * This like 22 disables BOLD, DIM and INVIS
3263 * The ANSI colours appear on any
3264 * terminal that has colour (obviously)
3265 * but the interaction between sgr0 and
3266 * the colours varies but is usually
3267 * related to the background colour
3268 * erase item. The interaction between
3269 * colour attributes and the mono ones
3270 * is also very implementation
3273 * The 39 and 49 attributes are likely
3274 * to be unimplemented.
3277 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3278 switch (def(term
->esc_args
[i
], 0)) {
3279 case 0: /* restore defaults */
3280 term
->curr_attr
= term
->default_attr
;
3282 case 1: /* enable bold */
3283 compatibility(VT100AVO
);
3284 term
->curr_attr
|= ATTR_BOLD
;
3286 case 21: /* (enable double underline) */
3287 compatibility(OTHER
);
3288 case 4: /* enable underline */
3289 compatibility(VT100AVO
);
3290 term
->curr_attr
|= ATTR_UNDER
;
3292 case 5: /* enable blink */
3293 compatibility(VT100AVO
);
3294 term
->curr_attr
|= ATTR_BLINK
;
3296 case 6: /* SCO light bkgrd */
3297 compatibility(SCOANSI
);
3298 term
->blink_is_real
= FALSE
;
3299 term
->curr_attr
|= ATTR_BLINK
;
3301 case 7: /* enable reverse video */
3302 term
->curr_attr
|= ATTR_REVERSE
;
3304 case 10: /* SCO acs off */
3305 compatibility(SCOANSI
);
3306 if (term
->cfg
.no_remote_charset
) break;
3307 term
->sco_acs
= 0; break;
3308 case 11: /* SCO acs on */
3309 compatibility(SCOANSI
);
3310 if (term
->cfg
.no_remote_charset
) break;
3311 term
->sco_acs
= 1; break;
3312 case 12: /* SCO acs on, |0x80 */
3313 compatibility(SCOANSI
);
3314 if (term
->cfg
.no_remote_charset
) break;
3315 term
->sco_acs
= 2; break;
3316 case 22: /* disable bold */
3317 compatibility2(OTHER
, VT220
);
3318 term
->curr_attr
&= ~ATTR_BOLD
;
3320 case 24: /* disable underline */
3321 compatibility2(OTHER
, VT220
);
3322 term
->curr_attr
&= ~ATTR_UNDER
;
3324 case 25: /* disable blink */
3325 compatibility2(OTHER
, VT220
);
3326 term
->curr_attr
&= ~ATTR_BLINK
;
3328 case 27: /* disable reverse video */
3329 compatibility2(OTHER
, VT220
);
3330 term
->curr_attr
&= ~ATTR_REVERSE
;
3341 term
->curr_attr
&= ~ATTR_FGMASK
;
3343 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3353 /* xterm-style bright foreground */
3354 term
->curr_attr
&= ~ATTR_FGMASK
;
3356 ((term
->esc_args
[i
] - 90 + 16)
3359 case 39: /* default-foreground */
3360 term
->curr_attr
&= ~ATTR_FGMASK
;
3361 term
->curr_attr
|= ATTR_DEFFG
;
3372 term
->curr_attr
&= ~ATTR_BGMASK
;
3374 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3384 /* xterm-style bright background */
3385 term
->curr_attr
&= ~ATTR_BGMASK
;
3387 ((term
->esc_args
[i
] - 100 + 16)
3390 case 49: /* default-background */
3391 term
->curr_attr
&= ~ATTR_BGMASK
;
3392 term
->curr_attr
|= ATTR_DEFBG
;
3396 set_erase_char(term
);
3399 case 's': /* save cursor */
3400 save_cursor(term
, TRUE
);
3402 case 'u': /* restore cursor */
3403 save_cursor(term
, FALSE
);
3404 term
->seen_disp_event
= TRUE
;
3406 case 't': /* DECSLPP: set page size - ie window height */
3408 * VT340/VT420 sequence DECSLPP, DEC only allows values
3409 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3410 * illegal values (eg first arg 1..9) for window changing
3413 if (term
->esc_nargs
<= 1
3414 && (term
->esc_args
[0] < 1 ||
3415 term
->esc_args
[0] >= 24)) {
3416 compatibility(VT340TEXT
);
3417 if (!term
->cfg
.no_remote_resize
)
3418 request_resize(term
->frontend
, term
->cols
,
3419 def(term
->esc_args
[0], 24));
3421 } else if (term
->esc_nargs
>= 1 &&
3422 term
->esc_args
[0] >= 1 &&
3423 term
->esc_args
[0] < 24) {
3424 compatibility(OTHER
);
3426 switch (term
->esc_args
[0]) {
3430 set_iconic(term
->frontend
, FALSE
);
3433 set_iconic(term
->frontend
, TRUE
);
3436 if (term
->esc_nargs
>= 3) {
3437 if (!term
->cfg
.no_remote_resize
)
3438 move_window(term
->frontend
,
3439 def(term
->esc_args
[1], 0),
3440 def(term
->esc_args
[2], 0));
3444 /* We should resize the window to a given
3445 * size in pixels here, but currently our
3446 * resizing code isn't healthy enough to
3451 set_zorder(term
->frontend
, TRUE
);
3454 /* move to bottom */
3455 set_zorder(term
->frontend
, FALSE
);
3458 refresh_window(term
->frontend
);
3461 if (term
->esc_nargs
>= 3) {
3462 if (!term
->cfg
.no_remote_resize
)
3463 request_resize(term
->frontend
,
3464 def(term
->esc_args
[2], term
->cfg
.width
),
3465 def(term
->esc_args
[1], term
->cfg
.height
));
3469 if (term
->esc_nargs
>= 2)
3470 set_zoomed(term
->frontend
,
3476 ldisc_send(term
->ldisc
,
3477 is_iconic(term
->frontend
) ?
3478 "\033[1t" : "\033[2t", 4, 0);
3482 get_window_pos(term
->frontend
, &x
, &y
);
3483 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3484 ldisc_send(term
->ldisc
, buf
, len
, 0);
3489 get_window_pixels(term
->frontend
, &x
, &y
);
3490 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3491 ldisc_send(term
->ldisc
, buf
, len
, 0);
3496 len
= sprintf(buf
, "\033[8;%d;%dt",
3497 term
->rows
, term
->cols
);
3498 ldisc_send(term
->ldisc
, buf
, len
, 0);
3503 * Hmmm. Strictly speaking we
3504 * should return `the size of the
3505 * screen in characters', but
3506 * that's not easy: (a) window
3507 * furniture being what it is it's
3508 * hard to compute, and (b) in
3509 * resize-font mode maximising the
3510 * window wouldn't change the
3511 * number of characters. *shrug*. I
3512 * think we'll ignore it for the
3513 * moment and see if anyone
3514 * complains, and then ask them
3515 * what they would like it to do.
3520 !term
->cfg
.no_remote_qtitle
) {
3521 p
= get_window_title(term
->frontend
, TRUE
);
3523 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3524 ldisc_send(term
->ldisc
, p
, len
, 0);
3525 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3530 !term
->cfg
.no_remote_qtitle
) {
3531 p
= get_window_title(term
->frontend
,FALSE
);
3533 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3534 ldisc_send(term
->ldisc
, p
, len
, 0);
3535 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3541 case 'S': /* SU: Scroll up */
3542 compatibility(SCOANSI
);
3543 scroll(term
, term
->marg_t
, term
->marg_b
,
3544 def(term
->esc_args
[0], 1), TRUE
);
3545 term
->wrapnext
= FALSE
;
3546 term
->seen_disp_event
= TRUE
;
3548 case 'T': /* SD: Scroll down */
3549 compatibility(SCOANSI
);
3550 scroll(term
, term
->marg_t
, term
->marg_b
,
3551 -def(term
->esc_args
[0], 1), TRUE
);
3552 term
->wrapnext
= FALSE
;
3553 term
->seen_disp_event
= TRUE
;
3555 case ANSI('|', '*'): /* DECSNLS */
3557 * Set number of lines on screen
3558 * VT420 uses VGA like hardware and can
3559 * support any size in reasonable range
3560 * (24..49 AIUI) with no default specified.
3562 compatibility(VT420
);
3563 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3564 if (!term
->cfg
.no_remote_resize
)
3565 request_resize(term
->frontend
, term
->cols
,
3566 def(term
->esc_args
[0],
3571 case ANSI('|', '$'): /* DECSCPP */
3573 * Set number of columns per page
3574 * Docs imply range is only 80 or 132, but
3577 compatibility(VT340TEXT
);
3578 if (term
->esc_nargs
<= 1) {
3579 if (!term
->cfg
.no_remote_resize
)
3580 request_resize(term
->frontend
,
3581 def(term
->esc_args
[0],
3582 term
->cfg
.width
), term
->rows
);
3586 case 'X': /* ECH: write N spaces w/o moving cursor */
3587 /* XXX VTTEST says this is vt220, vt510 manual
3589 compatibility(ANSIMIN
);
3591 int n
= def(term
->esc_args
[0], 1);
3593 int p
= term
->curs
.x
;
3594 termline
*cline
= scrlineptr(term
->curs
.y
);
3596 if (n
> term
->cols
- term
->curs
.x
)
3597 n
= term
->cols
- term
->curs
.x
;
3598 cursplus
= term
->curs
;
3600 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3601 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3602 check_selection(term
, term
->curs
, cursplus
);
3604 copy_termchar(cline
, p
++,
3606 term
->seen_disp_event
= TRUE
;
3609 case 'x': /* DECREQTPARM: report terminal characteristics */
3610 compatibility(VT100
);
3613 int i
= def(term
->esc_args
[0], 0);
3614 if (i
== 0 || i
== 1) {
3615 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3617 ldisc_send(term
->ldisc
, buf
, 20, 0);
3621 case 'Z': /* CBT: BackTab for xterm */
3622 compatibility(OTHER
);
3624 int i
= def(term
->esc_args
[0], 1);
3625 pos old_curs
= term
->curs
;
3627 for(;i
>0 && term
->curs
.x
>0; i
--) {
3630 } while (term
->curs
.x
>0 &&
3631 !term
->tabs
[term
->curs
.x
]);
3633 check_selection(term
, old_curs
, term
->curs
);
3636 case ANSI('c', '='): /* Hide or Show Cursor */
3637 compatibility(SCOANSI
);
3638 switch(term
->esc_args
[0]) {
3639 case 0: /* hide cursor */
3640 term
->cursor_on
= FALSE
;
3642 case 1: /* restore cursor */
3643 term
->big_cursor
= FALSE
;
3644 term
->cursor_on
= TRUE
;
3646 case 2: /* block cursor */
3647 term
->big_cursor
= TRUE
;
3648 term
->cursor_on
= TRUE
;
3652 case ANSI('C', '='):
3654 * set cursor start on scanline esc_args[0] and
3655 * end on scanline esc_args[1].If you set
3656 * the bottom scan line to a value less than
3657 * the top scan line, the cursor will disappear.
3659 compatibility(SCOANSI
);
3660 if (term
->esc_nargs
>= 2) {
3661 if (term
->esc_args
[0] > term
->esc_args
[1])
3662 term
->cursor_on
= FALSE
;
3664 term
->cursor_on
= TRUE
;
3667 case ANSI('D', '='):
3668 compatibility(SCOANSI
);
3669 term
->blink_is_real
= FALSE
;
3670 if (term
->esc_args
[0]>=1)
3671 term
->curr_attr
|= ATTR_BLINK
;
3673 term
->curr_attr
&= ~ATTR_BLINK
;
3675 case ANSI('E', '='):
3676 compatibility(SCOANSI
);
3677 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3679 case ANSI('F', '='): /* set normal foreground */
3680 compatibility(SCOANSI
);
3681 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3683 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3684 ((term
->esc_args
[0] & 0x8) << 1)) <<
3686 term
->curr_attr
&= ~ATTR_FGMASK
;
3687 term
->curr_attr
|= colour
;
3688 term
->default_attr
&= ~ATTR_FGMASK
;
3689 term
->default_attr
|= colour
;
3692 case ANSI('G', '='): /* set normal background */
3693 compatibility(SCOANSI
);
3694 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3696 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3697 ((term
->esc_args
[0] & 0x8) << 1)) <<
3699 term
->curr_attr
&= ~ATTR_BGMASK
;
3700 term
->curr_attr
|= colour
;
3701 term
->default_attr
&= ~ATTR_BGMASK
;
3702 term
->default_attr
|= colour
;
3705 case ANSI('L', '='):
3706 compatibility(SCOANSI
);
3707 term
->use_bce
= (term
->esc_args
[0] <= 0);
3708 set_erase_char(term
);
3710 case ANSI('p', '"'): /* DECSCL: set compat level */
3712 * Allow the host to make this emulator a
3713 * 'perfect' VT102. This first appeared in
3714 * the VT220, but we do need to get back to
3715 * PuTTY mode so I won't check it.
3717 * The arg in 40..42,50 are a PuTTY extension.
3718 * The 2nd arg, 8bit vs 7bit is not checked.
3720 * Setting VT102 mode should also change
3721 * the Fkeys to generate PF* codes as a
3722 * real VT102 has no Fkeys. The VT220 does
3723 * this, F11..F13 become ESC,BS,LF other
3724 * Fkeys send nothing.
3726 * Note ESC c will NOT change this!
3729 switch (term
->esc_args
[0]) {
3731 term
->compatibility_level
&= ~TM_VTXXX
;
3732 term
->compatibility_level
|= TM_VT102
;
3735 term
->compatibility_level
&= ~TM_VTXXX
;
3736 term
->compatibility_level
|= TM_VT220
;
3740 if (term
->esc_args
[0] > 60 &&
3741 term
->esc_args
[0] < 70)
3742 term
->compatibility_level
|= TM_VTXXX
;
3746 term
->compatibility_level
&= TM_VTXXX
;
3749 term
->compatibility_level
= TM_PUTTY
;
3752 term
->compatibility_level
= TM_SCOANSI
;
3756 term
->compatibility_level
= TM_PUTTY
;
3762 /* Change the response to CSI c */
3763 if (term
->esc_args
[0] == 50) {
3766 strcpy(term
->id_string
, "\033[?");
3767 for (i
= 1; i
< term
->esc_nargs
; i
++) {
3769 strcat(term
->id_string
, ";");
3770 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
3771 strcat(term
->id_string
, lbuf
);
3773 strcat(term
->id_string
, "c");
3776 /* Is this a good idea ?
3777 * Well we should do a soft reset at this point ...
3779 if (!has_compat(VT420
) && has_compat(VT100
)) {
3780 if (!term
->cfg
.no_remote_resize
) {
3781 if (term
->reset_132
)
3782 request_resize(132, 24);
3784 request_resize(80, 24);
3792 term
->osc_w
= FALSE
;
3794 case 'P': /* Linux palette sequence */
3795 term
->termstate
= SEEN_OSC_P
;
3796 term
->osc_strlen
= 0;
3798 case 'R': /* Linux palette reset */
3799 palette_reset(term
->frontend
);
3800 term_invalidate(term
);
3801 term
->termstate
= TOPLEVEL
;
3803 case 'W': /* word-set */
3804 term
->termstate
= SEEN_OSC_W
;
3817 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3821 * Grotty hack to support xterm and DECterm title
3822 * sequences concurrently.
3824 if (term
->esc_args
[0] == 2) {
3825 term
->esc_args
[0] = 1;
3828 /* else fall through */
3830 term
->termstate
= OSC_STRING
;
3831 term
->osc_strlen
= 0;
3836 * This OSC stuff is EVIL. It takes just one character to get into
3837 * sysline mode and it's not initially obvious how to get out.
3838 * So I've added CR and LF as string aborts.
3839 * This shouldn't effect compatibility as I believe embedded
3840 * control characters are supposed to be interpreted (maybe?)
3841 * and they don't display anything useful anyway.
3845 if (c
== '\012' || c
== '\015') {
3846 term
->termstate
= TOPLEVEL
;
3847 } else if (c
== 0234 || c
== '\007') {
3849 * These characters terminate the string; ST and BEL
3850 * terminate the sequence and trigger instant
3851 * processing of it, whereas ESC goes back to SEEN_ESC
3852 * mode unless it is followed by \, in which case it is
3853 * synonymous with ST in the first place.
3856 term
->termstate
= TOPLEVEL
;
3857 } else if (c
== '\033')
3858 term
->termstate
= OSC_MAYBE_ST
;
3859 else if (term
->osc_strlen
< OSC_STR_MAX
)
3860 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
3864 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
3866 if ((int)c
>= '0' && (int)c
<= '9')
3868 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
3870 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
3873 term
->termstate
= TOPLEVEL
;
3876 term
->osc_string
[term
->osc_strlen
++] = val
;
3877 if (term
->osc_strlen
>= 7) {
3878 palette_set(term
->frontend
, term
->osc_string
[0],
3879 term
->osc_string
[1] * 16 + term
->osc_string
[2],
3880 term
->osc_string
[3] * 16 + term
->osc_string
[4],
3881 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
3882 term_invalidate(term
);
3883 term
->termstate
= TOPLEVEL
;
3899 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3902 term
->termstate
= OSC_STRING
;
3903 term
->osc_strlen
= 0;
3907 term
->termstate
= TOPLEVEL
;
3908 term
->seen_disp_event
= TRUE
;
3911 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
3914 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
3917 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
3920 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
3923 * From the VT100 Manual
3924 * NOTE: The special graphics characters in the VT100
3925 * are different from those in the VT52
3927 * From VT102 manual:
3928 * 137 _ Blank - Same
3929 * 140 ` Reserved - Humm.
3930 * 141 a Solid rectangle - Similar
3931 * 142 b 1/ - Top half of fraction for the
3932 * 143 c 3/ - subscript numbers below.
3935 * 146 f Degrees - Same
3936 * 147 g Plus or minus - Same
3938 * 151 i Ellipsis (dots)
3941 * 154 l Bar at scan 0
3942 * 155 m Bar at scan 1
3943 * 156 n Bar at scan 2
3944 * 157 o Bar at scan 3 - Similar
3945 * 160 p Bar at scan 4 - Similar
3946 * 161 q Bar at scan 5 - Similar
3947 * 162 r Bar at scan 6 - Same
3948 * 163 s Bar at scan 7 - Similar
3963 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
3966 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
3969 move(term
, 0, 0, 0);
3972 if (term
->curs
.y
== 0)
3973 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
3974 else if (term
->curs
.y
> 0)
3976 term
->wrapnext
= FALSE
;
3979 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3983 erase_lots(term
, TRUE
, FALSE
, TRUE
);
3987 /* XXX Print cursor line */
3990 /* XXX Start controller mode */
3993 /* XXX Stop controller mode */
3997 term
->termstate
= VT52_Y1
;
4001 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
4004 term
->app_keypad_keys
= TRUE
;
4007 term
->app_keypad_keys
= FALSE
;
4010 /* XXX This should switch to VT100 mode not current or default
4011 * VT mode. But this will only have effect in a VT220+
4014 term
->vt52_mode
= FALSE
;
4015 term
->blink_is_real
= term
->cfg
.blinktext
;
4019 /* XXX Enter auto print mode */
4022 /* XXX Exit auto print mode */
4025 /* XXX Print screen */
4031 /* compatibility(ATARI) */
4032 move(term
, 0, 0, 0);
4033 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4037 /* compatibility(ATARI) */
4038 if (term
->curs
.y
<= term
->marg_b
)
4039 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4042 /* compatibility(ATARI) */
4043 if (term
->curs
.y
<= term
->marg_b
)
4044 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4047 /* compatibility(ATARI) */
4048 term
->termstate
= VT52_FG
;
4051 /* compatibility(ATARI) */
4052 term
->termstate
= VT52_BG
;
4055 /* compatibility(ATARI) */
4056 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4060 /* compatibility(ATARI) */
4061 term
->cursor_on
= TRUE
;
4064 /* compatibility(ATARI) */
4065 term
->cursor_on
= FALSE
;
4067 /* case 'j': Save cursor position - broken on ST */
4068 /* case 'k': Restore cursor position */
4070 /* compatibility(ATARI) */
4071 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4073 term
->wrapnext
= FALSE
;
4076 /* compatibility(ATARI) */
4077 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4080 /* compatibility(ATARI) */
4081 term
->curr_attr
|= ATTR_REVERSE
;
4084 /* compatibility(ATARI) */
4085 term
->curr_attr
&= ~ATTR_REVERSE
;
4087 case 'v': /* wrap Autowrap on - Wyse style */
4088 /* compatibility(ATARI) */
4091 case 'w': /* Autowrap off */
4092 /* compatibility(ATARI) */
4097 /* compatibility(OTHER) */
4098 term
->vt52_bold
= FALSE
;
4099 term
->curr_attr
= ATTR_DEFAULT
;
4100 set_erase_char(term
);
4103 /* compatibility(VI50) */
4104 term
->curr_attr
|= ATTR_UNDER
;
4107 /* compatibility(VI50) */
4108 term
->curr_attr
&= ~ATTR_UNDER
;
4111 /* compatibility(VI50) */
4112 term
->vt52_bold
= TRUE
;
4113 term
->curr_attr
|= ATTR_BOLD
;
4116 /* compatibility(VI50) */
4117 term
->vt52_bold
= FALSE
;
4118 term
->curr_attr
&= ~ATTR_BOLD
;
4124 term
->termstate
= VT52_Y2
;
4125 move(term
, term
->curs
.x
, c
- ' ', 0);
4128 term
->termstate
= TOPLEVEL
;
4129 move(term
, c
- ' ', term
->curs
.y
, 0);
4134 term
->termstate
= TOPLEVEL
;
4135 term
->curr_attr
&= ~ATTR_FGMASK
;
4136 term
->curr_attr
&= ~ATTR_BOLD
;
4137 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
4138 if ((c
& 0x8) || term
->vt52_bold
)
4139 term
->curr_attr
|= ATTR_BOLD
;
4141 set_erase_char(term
);
4144 term
->termstate
= TOPLEVEL
;
4145 term
->curr_attr
&= ~ATTR_BGMASK
;
4146 term
->curr_attr
&= ~ATTR_BLINK
;
4147 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
4149 /* Note: bold background */
4151 term
->curr_attr
|= ATTR_BLINK
;
4153 set_erase_char(term
);
4156 default: break; /* placate gcc warning about enum use */
4158 if (term
->selstate
!= NO_SELECTION
) {
4159 pos cursplus
= term
->curs
;
4161 check_selection(term
, term
->curs
, cursplus
);
4165 term_print_flush(term
);
4166 logflush(term
->logctx
);
4170 * To prevent having to run the reasonably tricky bidi algorithm
4171 * too many times, we maintain a cache of the last lineful of data
4172 * fed to the algorithm on each line of the display.
4174 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4175 termchar
*lbefore
, int width
)
4179 if (!term
->pre_bidi_cache
)
4180 return FALSE
; /* cache doesn't even exist yet! */
4182 if (line
>= term
->bidi_cache_size
)
4183 return FALSE
; /* cache doesn't have this many lines */
4185 if (!term
->pre_bidi_cache
[line
].chars
)
4186 return FALSE
; /* cache doesn't contain _this_ line */
4188 if (term
->pre_bidi_cache
[line
].width
!= width
)
4189 return FALSE
; /* line is wrong width */
4191 for (i
= 0; i
< width
; i
++)
4192 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4193 return FALSE
; /* line doesn't match cache */
4195 return TRUE
; /* it didn't match. */
4198 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4199 termchar
*lafter
, int width
)
4201 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4202 int j
= term
->bidi_cache_size
;
4203 term
->bidi_cache_size
= line
+1;
4204 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4205 term
->bidi_cache_size
,
4206 struct bidi_cache_entry
);
4207 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4208 term
->bidi_cache_size
,
4209 struct bidi_cache_entry
);
4210 while (j
< term
->bidi_cache_size
) {
4211 term
->pre_bidi_cache
[j
].chars
=
4212 term
->post_bidi_cache
[j
].chars
= NULL
;
4213 term
->pre_bidi_cache
[j
].width
=
4214 term
->post_bidi_cache
[j
].width
= -1;
4219 sfree(term
->pre_bidi_cache
[line
].chars
);
4220 sfree(term
->post_bidi_cache
[line
].chars
);
4222 term
->pre_bidi_cache
[line
].width
= width
;
4223 term
->pre_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4224 term
->post_bidi_cache
[line
].width
= width
;
4225 term
->post_bidi_cache
[line
].chars
= snewn(width
, termchar
);
4227 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, width
* TSIZE
);
4228 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, width
* TSIZE
);
4232 * Given a context, update the window. Out of paranoia, we don't
4233 * allow WM_PAINT responses to do scrolling optimisations.
4235 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4237 int i
, it
, j
, our_curs_y
, our_curs_x
;
4242 termchar cursor_background
;
4243 unsigned long ticks
;
4244 #ifdef OPTIMISE_SCROLL
4245 struct scrollregion
*sr
;
4246 #endif /* OPTIMISE_SCROLL */
4248 cursor_background
= term
->basic_erase_char
;
4251 ch
= snewn(chlen
, wchar_t);
4254 * Check the visual bell state.
4256 if (term
->in_vbell
) {
4257 ticks
= GETTICKCOUNT();
4258 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
4259 term
->in_vbell
= FALSE
;
4262 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4265 * screen array, disptop, scrtop,
4267 * cfg.blinkpc, blink_is_real, tblinker,
4268 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4271 /* Has the cursor position or type changed ? */
4272 if (term
->cursor_on
) {
4273 if (term
->has_focus
) {
4274 if (term
->blinker
|| !term
->cfg
.blink_cur
)
4275 cursor
= TATTR_ACTCURS
;
4279 cursor
= TATTR_PASCURS
;
4281 cursor
|= TATTR_RIGHTCURS
;
4284 our_curs_y
= term
->curs
.y
- term
->disptop
;
4287 * Adjust the cursor position in the case where it's
4288 * resting on the right-hand half of a CJK wide character.
4289 * xterm's behaviour here, which seems adequate to me, is
4290 * to display the cursor covering the _whole_ character,
4291 * exactly as if it were one space to the left.
4293 termline
*ldata
= lineptr(term
->curs
.y
);
4294 our_curs_x
= term
->curs
.x
;
4295 if (our_curs_x
> 0 &&
4296 ldata
->chars
[our_curs_x
].chr
== UCSWIDE
)
4302 * If the cursor is not where it was last time we painted, and
4303 * its previous position is visible on screen, invalidate its
4304 * previous position.
4306 if (term
->dispcursy
>= 0 &&
4307 (term
->curstype
!= cursor
||
4308 term
->dispcursy
!= our_curs_y
||
4309 term
->dispcursx
!= our_curs_x
)) {
4310 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4313 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4314 dispcurs
[-1].attr
|= ATTR_INVALID
;
4315 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4316 dispcurs
[1].attr
|= ATTR_INVALID
;
4317 dispcurs
->attr
|= ATTR_INVALID
;
4321 term
->dispcursx
= term
->dispcursy
= -1;
4323 #ifdef OPTIMISE_SCROLL
4325 sr
= term
->scrollhead
;
4327 struct scrollregion
*next
= sr
->next
;
4328 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4332 term
->scrollhead
= term
->scrolltail
= NULL
;
4333 #endif /* OPTIMISE_SCROLL */
4335 /* The normal screen data */
4336 for (i
= 0; i
< term
->rows
; i
++) {
4339 int dirty_line
, dirty_run
, selected
;
4340 unsigned long attr
= 0, cset
= 0;
4341 int updated_line
= 0;
4344 int last_run_dirty
= 0;
4346 scrpos
.y
= i
+ term
->disptop
;
4347 ldata
= lineptr(scrpos
.y
);
4349 dirty_run
= dirty_line
= (ldata
->lattr
!=
4350 term
->disptext
[i
]->lattr
);
4351 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4353 /* Do Arabic shaping and bidi. */
4354 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4356 if (!term_bidi_cache_hit(term
, i
, ldata
->chars
, term
->cols
)) {
4358 if (term
->wcFromTo_size
< term
->cols
) {
4359 term
->wcFromTo_size
= term
->cols
;
4360 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4362 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4366 for(it
=0; it
<term
->cols
; it
++)
4368 unsigned long uc
= (ldata
->chars
[it
].chr
);
4370 switch (uc
& CSET_MASK
) {
4372 if (!term
->cfg
.rawcnp
) {
4373 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4377 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4380 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4383 switch (uc
& CSET_MASK
) {
4385 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4388 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4392 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4394 term
->wcFrom
[it
].index
= it
;
4398 do_bidi(term
->wcFrom
, term
->cols
);
4400 /* this is saved iff done from inside the shaping */
4401 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4402 for(it
=0; it
<term
->cols
; it
++)
4403 term
->wcTo
[it
] = term
->wcFrom
[it
];
4405 if(!term
->cfg
.arabicshaping
)
4406 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4408 if (term
->ltemp_size
< ldata
->size
) {
4409 term
->ltemp_size
= ldata
->size
;
4410 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4414 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4416 for(it
=0; it
<term
->cols
; it
++)
4418 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4419 if (term
->ltemp
[it
].cc_next
)
4420 term
->ltemp
[it
].cc_next
-=
4421 it
- term
->wcTo
[it
].index
;
4423 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4424 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4426 term_bidi_cache_store(term
, i
, ldata
->chars
,
4427 term
->ltemp
, ldata
->size
);
4429 lchars
= term
->ltemp
;
4431 lchars
= term
->post_bidi_cache
[i
].chars
;
4434 lchars
= ldata
->chars
;
4436 for (j
= 0; j
< term
->cols
; j
++) {
4437 unsigned long tattr
, tchar
;
4438 termchar
*d
= lchars
+ j
;
4439 int break_run
, do_copy
;
4445 switch (tchar
& CSET_MASK
) {
4447 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4450 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4453 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4456 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4459 /* Video reversing things */
4460 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4461 if (term
->seltype
== LEXICOGRAPHIC
)
4462 selected
= (posle(term
->selstart
, scrpos
) &&
4463 poslt(scrpos
, term
->selend
));
4465 selected
= (posPle(term
->selstart
, scrpos
) &&
4466 posPlt(scrpos
, term
->selend
));
4470 ^ (selected ? ATTR_REVERSE
: 0));
4472 /* 'Real' blinking ? */
4473 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4474 if (term
->has_focus
&& term
->tblinker
) {
4475 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4477 tattr
&= ~ATTR_BLINK
;
4481 * Check the font we'll _probably_ be using to see if
4482 * the character is wide when we don't want it to be.
4484 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4485 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4487 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4488 tattr
|= ATTR_NARROW
;
4489 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4490 tattr
|= ATTR_NARROW
;
4492 /* Cursor here ? Save the 'background' */
4493 if (i
== our_curs_y
&& j
== our_curs_x
) {
4495 cursor_background
.chr
= tchar
;
4496 cursor_background
.attr
= tattr
;
4497 /* For once, this cc_next field is an absolute index in lchars */
4499 cursor_background
.cc_next
= d
->cc_next
+ j
;
4501 cursor_background
.cc_next
= 0;
4502 term
->dispcursx
= j
;
4503 term
->dispcursy
= i
;
4506 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4509 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4511 /* Special hack for VT100 Linedraw glyphs */
4512 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4516 * Separate out sequences of characters that have the
4517 * same CSET, if that CSET is a magic one.
4519 if (CSET_OF(tchar
) != cset
)
4523 * Break on both sides of any combined-character cell.
4525 if (d
->cc_next
!= 0 ||
4526 (j
> 0 && d
[-1].cc_next
!= 0))
4529 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4530 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4531 term
->disptext
[i
]->chars
[j
].attr
== tattr
)
4533 else if (!dirty_run
&& ccount
== 1)
4538 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4539 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4545 cset
= CSET_OF(tchar
);
4546 if (term
->ucsdata
->dbcs_screenfont
)
4547 last_run_dirty
= dirty_run
;
4548 dirty_run
= dirty_line
;
4552 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4558 if (ccount
>= chlen
) {
4559 chlen
= ccount
+ 256;
4560 ch
= sresize(ch
, chlen
, wchar_t);
4562 ch
[ccount
++] = (wchar_t) tchar
;
4567 while (dd
->cc_next
) {
4568 unsigned long schar
;
4573 switch (schar
& CSET_MASK
) {
4575 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4578 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4581 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4585 if (ccount
>= chlen
) {
4586 chlen
= ccount
+ 256;
4587 ch
= sresize(ch
, chlen
, wchar_t);
4589 ch
[ccount
++] = (wchar_t) schar
;
4592 attr
|= TATTR_COMBINING
;
4596 copy_termchar(term
->disptext
[i
], j
, d
);
4597 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
4598 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
4601 /* If it's a wide char step along to the next one. */
4602 if (tattr
& ATTR_WIDE
) {
4603 if (++j
< term
->cols
) {
4606 * By construction above, the cursor should not
4607 * be on the right-hand half of this character.
4610 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
4611 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
4613 copy_termchar(term
->disptext
[i
], j
, d
);
4617 if (dirty_run
&& ccount
> 0) {
4618 do_text(ctx
, start
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4622 /* Cursor on this line ? (and changed) */
4623 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
4624 ch
[0] = (wchar_t) cursor_background
.chr
;
4625 attr
= cursor_background
.attr
| cursor
;
4628 if (cursor_background
.cc_next
) {
4629 termchar
*dd
= ldata
->chars
+ cursor_background
.cc_next
;
4632 unsigned long schar
;
4635 switch (schar
& CSET_MASK
) {
4637 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4640 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4643 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4647 if (ccount
>= chlen
) {
4648 chlen
= ccount
+ 256;
4649 ch
= sresize(ch
, chlen
, wchar_t);
4651 ch
[ccount
++] = (wchar_t) schar
;
4659 attr
|= TATTR_COMBINING
;
4662 do_cursor(ctx
, our_curs_x
, i
, ch
, ccount
, attr
, ldata
->lattr
);
4663 term
->curstype
= cursor
;
4673 * Flick the switch that says if blinking things should be shown or hidden.
4676 void term_blink(Terminal
*term
, int flg
)
4678 long now
, blink_diff
;
4680 now
= GETTICKCOUNT();
4681 blink_diff
= now
- term
->last_tblink
;
4683 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
4684 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
4685 term
->last_tblink
= now
;
4686 term
->tblinker
= !term
->tblinker
;
4691 term
->last_blink
= now
;
4695 blink_diff
= now
- term
->last_blink
;
4697 /* Make sure the cursor blinks no faster than system blink rate */
4698 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
4701 term
->last_blink
= now
;
4702 term
->blinker
= !term
->blinker
;
4706 * Invalidate the whole screen so it will be repainted in full.
4708 void term_invalidate(Terminal
*term
)
4712 for (i
= 0; i
< term
->rows
; i
++)
4713 for (j
= 0; j
< term
->cols
; j
++)
4714 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4718 * Paint the window in response to a WM_PAINT message.
4720 void term_paint(Terminal
*term
, Context ctx
,
4721 int left
, int top
, int right
, int bottom
, int immediately
)
4724 if (left
< 0) left
= 0;
4725 if (top
< 0) top
= 0;
4726 if (right
>= term
->cols
) right
= term
->cols
-1;
4727 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
4729 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
4730 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
4731 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
4732 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4734 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
4735 term
->disptext
[i
]->chars
[j
].attr
= ATTR_INVALID
;
4738 /* This should happen soon enough, also for some reason it sometimes
4739 * fails to actually do anything when re-sizing ... painting the wrong
4743 do_paint (term
, ctx
, FALSE
);
4747 * Attempt to scroll the scrollback. The second parameter gives the
4748 * position we want to scroll to; the first is +1 to denote that
4749 * this position is relative to the beginning of the scrollback, -1
4750 * to denote it is relative to the end, and 0 to denote that it is
4751 * relative to the current position.
4753 void term_scroll(Terminal
*term
, int rel
, int where
)
4755 int sbtop
= -sblines(term
);
4756 #ifdef OPTIMISE_SCROLL
4757 int olddisptop
= term
->disptop
;
4759 #endif /* OPTIMISE_SCROLL */
4761 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
4762 if (term
->disptop
< sbtop
)
4763 term
->disptop
= sbtop
;
4764 if (term
->disptop
> 0)
4767 #ifdef OPTIMISE_SCROLL
4768 shift
= (term
->disptop
- olddisptop
);
4769 if (shift
< term
->rows
&& shift
> -term
->rows
)
4770 scroll_display(term
, 0, term
->rows
- 1, shift
);
4771 #endif /* OPTIMISE_SCROLL */
4775 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
4778 wchar_t *wbptr
; /* where next char goes within workbuf */
4780 int wblen
= 0; /* workbuf len */
4781 int buflen
; /* amount of memory allocated to workbuf */
4783 buflen
= 5120; /* Default size */
4784 workbuf
= snewn(buflen
, wchar_t);
4785 wbptr
= workbuf
; /* start filling here */
4786 old_top_x
= top
.x
; /* needed for rect==1 */
4788 while (poslt(top
, bottom
)) {
4790 termline
*ldata
= lineptr(top
.y
);
4794 * nlpos will point at the maximum position on this line we
4795 * should copy up to. So we start it at the end of the
4799 nlpos
.x
= term
->cols
;
4802 * ... move it backwards if there's unused space at the end
4803 * of the line (and also set `nl' if this is the case,
4804 * because in normal selection mode this means we need a
4805 * newline at the end)...
4807 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
4808 while (IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
4809 !ldata
->chars
[nlpos
.x
- 1].cc_next
&&
4812 if (poslt(nlpos
, bottom
))
4814 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
4815 /* Ignore the last char on the line in a WRAPPED2 line. */
4820 * ... and then clip it to the terminal x coordinate if
4821 * we're doing rectangular selection. (In this case we
4822 * still did the above, so that copying e.g. the right-hand
4823 * column from a table doesn't fill with spaces on the
4827 if (nlpos
.x
> bottom
.x
)
4829 nl
= (top
.y
< bottom
.y
);
4832 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
4835 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
4837 wchar_t cbuf
[16], *p
;
4841 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
4847 int uc
= ldata
->chars
[x
].chr
;
4849 switch (uc
& CSET_MASK
) {
4851 if (!term
->cfg
.rawcnp
) {
4852 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4856 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4859 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4862 switch (uc
& CSET_MASK
) {
4864 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4867 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4871 set
= (uc
& CSET_MASK
);
4872 c
= (uc
& ~CSET_MASK
);
4876 if (DIRECT_FONT(uc
)) {
4877 if (c
>= ' ' && c
!= 0x7F) {
4881 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
4883 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
4884 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
4888 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
4892 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
4899 for (p
= cbuf
; *p
; p
++) {
4900 /* Enough overhead for trailing NL and nul */
4901 if (wblen
>= buflen
- 16) {
4903 workbuf
= sresize(workbuf
, buflen
, wchar_t);
4904 wbptr
= workbuf
+ wblen
;
4910 if (ldata
->chars
[x
].cc_next
)
4911 x
+= ldata
->chars
[x
].cc_next
;
4919 for (i
= 0; i
< sel_nl_sz
; i
++) {
4921 *wbptr
++ = sel_nl
[i
];
4925 top
.x
= rect ? old_top_x
: 0;
4929 #if SELECTION_NUL_TERMINATED
4933 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
4934 if (buflen
> 0) /* indicates we allocated this buffer */
4938 void term_copyall(Terminal
*term
)
4942 tree234
*screen
= term
->screen
;
4943 top
.y
= -sblines(term
);
4945 bottom
.y
= find_last_nonempty_line(term
, screen
);
4946 bottom
.x
= term
->cols
;
4947 clipme(term
, top
, bottom
, 0, TRUE
);
4951 * The wordness array is mainly for deciding the disposition of the
4952 * US-ASCII characters.
4954 static int wordtype(Terminal
*term
, int uc
)
4957 int start
, end
, ctype
;
4959 static const struct ucsword ucs_words
[] = {
4965 0x037e, 0x037e, 1}, /* Greek question mark */
4967 0x0387, 0x0387, 1}, /* Greek ano teleia */
4969 0x055a, 0x055f, 1}, /* Armenian punctuation */
4971 0x0589, 0x0589, 1}, /* Armenian full stop */
4973 0x0700, 0x070d, 1}, /* Syriac punctuation */
4975 0x104a, 0x104f, 1}, /* Myanmar punctuation */
4977 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
4979 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
4981 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
4983 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
4985 0x1800, 0x180a, 1}, /* Mongolian punctuation */
4987 0x2000, 0x200a, 0}, /* Various spaces */
4989 0x2070, 0x207f, 2}, /* superscript */
4991 0x2080, 0x208f, 2}, /* subscript */
4993 0x200b, 0x27ff, 1}, /* punctuation and symbols */
4995 0x3000, 0x3000, 0}, /* ideographic space */
4997 0x3001, 0x3020, 1}, /* ideographic punctuation */
4999 0x303f, 0x309f, 3}, /* Hiragana */
5001 0x30a0, 0x30ff, 3}, /* Katakana */
5003 0x3300, 0x9fff, 3}, /* CJK Ideographs */
5005 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5007 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5009 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5011 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5013 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5015 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5017 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5019 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5023 const struct ucsword
*wptr
;
5025 switch (uc
& CSET_MASK
) {
5027 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5030 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5033 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5036 switch (uc
& CSET_MASK
) {
5038 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5041 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5045 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5046 * fail as there's such a thing as a double width space. :-(
5048 if (term
->ucsdata
->dbcs_screenfont
&&
5049 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5053 return term
->wordness
[uc
];
5055 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5056 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5064 * Spread the selection outwards according to the selection mode.
5066 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5070 int topy
= -sblines(term
);
5072 ldata
= lineptr(p
.y
);
5074 switch (term
->selmode
) {
5077 * In this mode, every character is a separate unit, except
5078 * for runs of spaces at the end of a non-wrapping line.
5080 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5081 termchar
*q
= ldata
->chars
+ term
->cols
;
5082 while (q
> ldata
->chars
&&
5083 IS_SPACE_CHR(q
[-1].chr
) && !q
[-1].cc_next
)
5085 if (q
== ldata
->chars
+ term
->cols
)
5087 if (p
.x
>= q
- ldata
->chars
)
5088 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5093 * In this mode, the units are maximal runs of characters
5094 * whose `wordness' has the same value.
5096 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5099 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5100 term
->cols
-1 : term
->cols
);
5101 if (p
.x
< maxcols
-1) {
5102 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5107 if (ldata
->lattr
& LATTR_WRAPPED
) {
5109 ldata2
= lineptr(p
.y
+1);
5110 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5127 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5136 ldata2
= lineptr(p
.y
-1);
5137 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5138 term
->cols
-1 : term
->cols
);
5139 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5140 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5158 * In this mode, every line is a unit.
5160 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5168 static void sel_spread(Terminal
*term
)
5170 if (term
->seltype
== LEXICOGRAPHIC
) {
5171 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5172 decpos(term
->selend
);
5173 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5174 incpos(term
->selend
);
5178 void term_do_paste(Terminal
*term
)
5183 get_clip(term
->frontend
, &data
, &len
);
5184 if (data
&& len
> 0) {
5187 term_seen_key_event(term
); /* pasted data counts */
5189 if (term
->paste_buffer
)
5190 sfree(term
->paste_buffer
);
5191 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5192 term
->paste_buffer
= snewn(len
, wchar_t);
5195 while (p
< data
+ len
) {
5196 while (p
< data
+ len
&&
5197 !(p
<= data
+ len
- sel_nl_sz
&&
5198 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5203 for (i
= 0; i
< p
- q
; i
++) {
5204 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5208 if (p
<= data
+ len
- sel_nl_sz
&&
5209 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5210 term
->paste_buffer
[term
->paste_len
++] = '\015';
5216 /* Assume a small paste will be OK in one go. */
5217 if (term
->paste_len
< 256) {
5219 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5220 if (term
->paste_buffer
)
5221 sfree(term
->paste_buffer
);
5222 term
->paste_buffer
= 0;
5223 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5226 get_clip(term
->frontend
, NULL
, NULL
);
5229 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5230 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5234 int raw_mouse
= (term
->xterm_mouse
&&
5235 !term
->cfg
.no_mouse_rep
&&
5236 !(term
->cfg
.mouse_override
&& shift
));
5237 int default_seltype
;
5241 if (a
== MA_DRAG
&& !raw_mouse
)
5242 term_scroll(term
, 0, -1);
5244 if (y
>= term
->rows
) {
5246 if (a
== MA_DRAG
&& !raw_mouse
)
5247 term_scroll(term
, 0, +1);
5256 if (x
>= term
->cols
)
5259 selpoint
.y
= y
+ term
->disptop
;
5261 ldata
= lineptr(selpoint
.y
);
5262 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5267 int encstate
= 0, r
, c
;
5274 encstate
= 0x20; /* left button down */
5285 case MBT_WHEEL_DOWN
:
5288 default: break; /* placate gcc warning about enum use */
5292 if (term
->xterm_mouse
== 1)
5298 term
->mouse_is_down
= 0;
5301 if (term
->mouse_is_down
== braw
)
5303 term
->mouse_is_down
= braw
;
5305 default: break; /* placate gcc warning about enum use */
5314 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5315 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5321 * Set the selection type (rectangular or normal) at the start
5322 * of a selection attempt, from the state of Alt.
5324 if (!alt
^ !term
->cfg
.rect_select
)
5325 default_seltype
= RECTANGULAR
;
5327 default_seltype
= LEXICOGRAPHIC
;
5329 if (term
->selstate
== NO_SELECTION
) {
5330 term
->seltype
= default_seltype
;
5333 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5335 term
->selstate
= ABOUT_TO
;
5336 term
->seltype
= default_seltype
;
5337 term
->selanchor
= selpoint
;
5338 term
->selmode
= SM_CHAR
;
5339 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5341 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5342 term
->selstate
= DRAGGING
;
5343 term
->selstart
= term
->selanchor
= selpoint
;
5344 term
->selend
= term
->selstart
;
5345 incpos(term
->selend
);
5347 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5348 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5349 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5351 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5352 term
->selstate
== SELECTED
) {
5353 if (term
->seltype
== LEXICOGRAPHIC
) {
5355 * For normal selection, we extend by moving
5356 * whichever end of the current selection is closer
5359 if (posdiff(selpoint
, term
->selstart
) <
5360 posdiff(term
->selend
, term
->selstart
) / 2) {
5361 term
->selanchor
= term
->selend
;
5362 decpos(term
->selanchor
);
5364 term
->selanchor
= term
->selstart
;
5368 * For rectangular selection, we have a choice of
5369 * _four_ places to put selanchor and selpoint: the
5370 * four corners of the selection.
5372 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5373 term
->selanchor
.x
= term
->selend
.x
-1;
5375 term
->selanchor
.x
= term
->selstart
.x
;
5377 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5378 term
->selanchor
.y
= term
->selend
.y
;
5380 term
->selanchor
.y
= term
->selstart
.y
;
5382 term
->selstate
= DRAGGING
;
5384 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5385 term
->selanchor
= selpoint
;
5386 term
->selstate
= DRAGGING
;
5387 if (term
->seltype
== LEXICOGRAPHIC
) {
5389 * For normal selection, we set (selstart,selend) to
5390 * (selpoint,selanchor) in some order.
5392 if (poslt(selpoint
, term
->selanchor
)) {
5393 term
->selstart
= selpoint
;
5394 term
->selend
= term
->selanchor
;
5395 incpos(term
->selend
);
5397 term
->selstart
= term
->selanchor
;
5398 term
->selend
= selpoint
;
5399 incpos(term
->selend
);
5403 * For rectangular selection, we may need to
5404 * interchange x and y coordinates (if the user has
5405 * dragged in the -x and +y directions, or vice versa).
5407 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5408 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5409 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5410 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5413 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5415 if (term
->selstate
== DRAGGING
) {
5417 * We've completed a selection. We now transfer the
5418 * data to the clipboard.
5420 clipme(term
, term
->selstart
, term
->selend
,
5421 (term
->seltype
== RECTANGULAR
), FALSE
);
5422 term
->selstate
= SELECTED
;
5424 term
->selstate
= NO_SELECTION
;
5425 } else if (bcooked
== MBT_PASTE
5427 #if MULTICLICK_ONLY_EVENT
5428 || a
== MA_2CLK
|| a
== MA_3CLK
5431 request_paste(term
->frontend
);
5437 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5438 unsigned int modifiers
, unsigned int flags
)
5442 int prependesc
= FALSE
;
5446 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5447 for (i
= 0; i
< tlen
; i
++)
5448 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5449 fprintf(stderr
, "\n");
5453 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5456 /* Currently, Meta always just prefixes everything with ESC. */
5457 if (modifiers
& PKM_META
)
5459 modifiers
&= ~PKM_META
;
5462 * Alt is only used for Alt+keypad, which isn't supported yet, so
5465 modifiers
&= ~PKM_ALT
;
5467 /* Standard local function keys */
5468 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5470 if (keysym
== PK_PAGEUP
)
5471 /* scroll up one page */;
5472 if (keysym
== PK_PAGEDOWN
)
5473 /* scroll down on page */;
5474 if (keysym
== PK_INSERT
)
5475 term_do_paste(term
);
5478 if (keysym
== PK_PAGEUP
)
5479 /* scroll up one line */;
5480 if (keysym
== PK_PAGEDOWN
)
5481 /* scroll down one line */;
5482 /* Control-Numlock for app-keypad mode switch */
5483 if (keysym
== PK_PF1
)
5484 term
->app_keypad_keys
^= 1;
5488 if (modifiers
& PKM_ALT
) {
5489 /* Alt+F4 (close) */
5490 /* Alt+Return (full screen) */
5491 /* Alt+Space (system menu) */
5494 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5495 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5496 /* ASCII chars + Control */
5497 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5498 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5502 * Control-2 should return ^@ (0x00), Control-6 should return
5503 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5504 * the DOS keyboard handling did it, and we have nothing better
5505 * to do with the key combo in question, we'll also map
5506 * Control-Backquote to ^\ (0x1C).
5509 case ' ': text
[0] = 0x00; break;
5510 case '-': text
[0] = 0x1f; break;
5511 case '/': text
[0] = 0x1f; break;
5512 case '2': text
[0] = 0x00; break;
5513 case '3': text
[0] = 0x1b; break;
5514 case '4': text
[0] = 0x1c; break;
5515 case '5': text
[0] = 0x1d; break;
5516 case '6': text
[0] = 0x1e; break;
5517 case '7': text
[0] = 0x1f; break;
5518 case '8': text
[0] = 0x7f; break;
5519 case '`': text
[0] = 0x1c; break;
5524 /* Nethack keypad */
5525 if (term
->cfg
.nethack_keypad
) {
5528 case PK_KP1
: c
= 'b'; break;
5529 case PK_KP2
: c
= 'j'; break;
5530 case PK_KP3
: c
= 'n'; break;
5531 case PK_KP4
: c
= 'h'; break;
5532 case PK_KP5
: c
= '.'; break;
5533 case PK_KP6
: c
= 'l'; break;
5534 case PK_KP7
: c
= 'y'; break;
5535 case PK_KP8
: c
= 'k'; break;
5536 case PK_KP9
: c
= 'u'; break;
5537 default: break; /* else gcc warns `enum value not used' */
5541 if (modifiers
& PKM_CONTROL
)
5543 else if (modifiers
& PKM_SHIFT
)
5551 /* Numeric Keypad */
5552 if (PK_ISKEYPAD(keysym
)) {
5556 * In VT400 mode, PFn always emits an escape sequence. In
5557 * Linux and tilde modes, this only happens in app keypad mode.
5559 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5560 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5561 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5562 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5564 case PK_PF1
: xkey
= 'P'; break;
5565 case PK_PF2
: xkey
= 'Q'; break;
5566 case PK_PF3
: xkey
= 'R'; break;
5567 case PK_PF4
: xkey
= 'S'; break;
5568 default: break; /* else gcc warns `enum value not used' */
5571 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5573 case PK_KP0
: xkey
= 'p'; break;
5574 case PK_KP1
: xkey
= 'q'; break;
5575 case PK_KP2
: xkey
= 'r'; break;
5576 case PK_KP3
: xkey
= 's'; break;
5577 case PK_KP4
: xkey
= 't'; break;
5578 case PK_KP5
: xkey
= 'u'; break;
5579 case PK_KP6
: xkey
= 'v'; break;
5580 case PK_KP7
: xkey
= 'w'; break;
5581 case PK_KP8
: xkey
= 'x'; break;
5582 case PK_KP9
: xkey
= 'y'; break;
5583 case PK_KPDECIMAL
: xkey
= 'n'; break;
5584 case PK_KPENTER
: xkey
= 'M'; break;
5585 default: break; /* else gcc warns `enum value not used' */
5587 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5589 * xterm can't see the layout of the keypad, so it has
5590 * to rely on the X keysyms returned by the keys.
5591 * Hence, we look at the strings here, not the PuTTY
5592 * keysyms (which describe the layout).
5596 if (modifiers
& PKM_SHIFT
)
5601 case '/': xkey
= 'o'; break;
5602 case '*': xkey
= 'j'; break;
5603 case '-': xkey
= 'm'; break;
5607 * In all other modes, we try to retain the layout of
5608 * the DEC keypad in application mode.
5612 /* This key covers the '-' and ',' keys on a VT220 */
5613 if (modifiers
& PKM_SHIFT
)
5614 xkey
= 'm'; /* VT220 '-' */
5616 xkey
= 'l'; /* VT220 ',' */
5618 case PK_KPMINUS
: xkey
= 'm'; break;
5619 case PK_KPCOMMA
: xkey
= 'l'; break;
5620 default: break; /* else gcc warns `enum value not used' */
5625 if (term
->vt52_mode
) {
5626 if (xkey
>= 'P' && xkey
<= 'S')
5627 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5629 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
5631 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5634 /* Not in application mode -- treat the number pad as arrow keys? */
5635 if ((flags
& PKF_NUMLOCK
) == 0) {
5637 case PK_KP0
: keysym
= PK_INSERT
; break;
5638 case PK_KP1
: keysym
= PK_END
; break;
5639 case PK_KP2
: keysym
= PK_DOWN
; break;
5640 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
5641 case PK_KP4
: keysym
= PK_LEFT
; break;
5642 case PK_KP5
: keysym
= PK_REST
; break;
5643 case PK_KP6
: keysym
= PK_RIGHT
; break;
5644 case PK_KP7
: keysym
= PK_HOME
; break;
5645 case PK_KP8
: keysym
= PK_UP
; break;
5646 case PK_KP9
: keysym
= PK_PAGEUP
; break;
5647 default: break; /* else gcc warns `enum value not used' */
5652 /* Miscellaneous keys */
5659 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
5660 else if (modifiers
== PKM_SHIFT
)
5661 /* We do the opposite of what is configured */
5662 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
5668 else if (modifiers
== PKM_SHIFT
)
5669 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
5672 /* XXX window.c has ctrl+shift+space sending 0xa0 */
5674 if (modifiers
== PKM_CONTROL
)
5679 case PK_KPENTER
: /* Odd keypad modes handled above */
5680 if (modifiers
== 0) {
5682 if (term
->cr_lf_return
)
5686 default: break; /* else gcc warns `enum value not used' */
5689 /* SCO function keys and editing keys */
5690 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
5691 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
5692 static char const codes
[] =
5693 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
5694 int index
= keysym
- PK_F1
;
5696 if (modifiers
& PKM_SHIFT
) index
+= 12;
5697 if (modifiers
& PKM_CONTROL
) index
+= 24;
5698 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
5701 if (PK_ISEDITING(keysym
)) {
5705 case PK_DELETE
: *p
++ = 0x7f; goto done
;
5706 case PK_HOME
: xkey
= 'H'; break;
5707 case PK_INSERT
: xkey
= 'L'; break;
5708 case PK_END
: xkey
= 'F'; break;
5709 case PK_PAGEUP
: xkey
= 'I'; break;
5710 case PK_PAGEDOWN
: xkey
= 'G'; break;
5711 default: break; /* else gcc warns `enum value not used' */
5713 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5717 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
5720 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
5721 /* Xterm shuffles these keys, apparently. */
5723 case PK_HOME
: keysym
= PK_INSERT
; break;
5724 case PK_INSERT
: keysym
= PK_HOME
; break;
5725 case PK_DELETE
: keysym
= PK_END
; break;
5726 case PK_END
: keysym
= PK_PAGEUP
; break;
5727 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
5728 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
5729 default: break; /* else gcc warns `enum value not used' */
5734 if (term
->cfg
.rxvt_homeend
&&
5735 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
5736 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
5740 if (term
->vt52_mode
) {
5744 * A real VT52 doesn't have these, and a VT220 doesn't
5745 * send anything for them in VT52 mode.
5748 case PK_HOME
: xkey
= 'H'; break;
5749 case PK_INSERT
: xkey
= 'L'; break;
5750 case PK_DELETE
: xkey
= 'M'; break;
5751 case PK_END
: xkey
= 'E'; break;
5752 case PK_PAGEUP
: xkey
= 'I'; break;
5753 case PK_PAGEDOWN
: xkey
= 'G'; break;
5754 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
5756 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5761 case PK_HOME
: code
= 1; break;
5762 case PK_INSERT
: code
= 2; break;
5763 case PK_DELETE
: code
= 3; break;
5764 case PK_END
: code
= 4; break;
5765 case PK_PAGEUP
: code
= 5; break;
5766 case PK_PAGEDOWN
: code
= 6; break;
5767 default: code
= 0; break; /* else gcc warns `enum value not used' */
5769 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
5773 if (PK_ISFKEY(keysym
)) {
5774 /* Map Shift+F1-F10 to F11-F20 */
5775 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
5777 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
5779 /* XXX This overrides the XTERM/VT52 mode below */
5781 if (keysym
>= PK_F6
) offt
++;
5782 if (keysym
>= PK_F12
) offt
++;
5783 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
5784 'P' + keysym
- PK_F1
- offt
);
5787 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
5788 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
5791 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
5792 if (term
->vt52_mode
)
5793 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
5795 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
5798 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
5802 if (PK_ISCURSOR(keysym
)) {
5806 case PK_UP
: xkey
= 'A'; break;
5807 case PK_DOWN
: xkey
= 'B'; break;
5808 case PK_RIGHT
: xkey
= 'C'; break;
5809 case PK_LEFT
: xkey
= 'D'; break;
5810 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
5811 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
5813 if (term
->vt52_mode
)
5814 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5816 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
5818 /* Useful mapping of Ctrl-arrows */
5819 if (modifiers
== PKM_CONTROL
)
5823 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5825 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
5831 if (p
> output
|| tlen
> 0) {
5833 * Interrupt an ongoing paste. I'm not sure
5834 * this is sensible, but for the moment it's
5835 * preferable to having to faff about buffering
5841 * We need not bother about stdin backlogs
5842 * here, because in GUI PuTTY we can't do
5843 * anything about it anyway; there's no means
5844 * of asking Windows to hold off on KEYDOWN
5845 * messages. We _have_ to buffer everything
5848 term_seen_key_event(term
);
5852 fprintf(stderr
, "sending ESC\n");
5854 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
5859 fprintf(stderr
, "sending %d bytes:", p
- output
);
5860 for (i
= 0; i
< p
- output
; i
++)
5861 fprintf(stderr
, " %02x", output
[i
]);
5862 fprintf(stderr
, "\n");
5864 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
5865 } else if (tlen
> 0) {
5867 fprintf(stderr
, "sending %d unichars:", tlen
);
5868 for (i
= 0; i
< tlen
; i
++)
5869 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
5870 fprintf(stderr
, "\n");
5872 luni_send(term
->ldisc
, text
, tlen
, 1);
5877 void term_nopaste(Terminal
*term
)
5879 if (term
->paste_len
== 0)
5881 sfree(term
->paste_buffer
);
5882 term
->paste_buffer
= NULL
;
5883 term
->paste_len
= 0;
5886 int term_paste_pending(Terminal
*term
)
5888 return term
->paste_len
!= 0;
5891 void term_paste(Terminal
*term
)
5893 long now
, paste_diff
;
5895 if (term
->paste_len
== 0)
5898 /* Don't wait forever to paste */
5899 if (term
->paste_hold
) {
5900 now
= GETTICKCOUNT();
5901 paste_diff
= now
- term
->last_paste
;
5902 if (paste_diff
>= 0 && paste_diff
< 450)
5905 term
->paste_hold
= 0;
5907 while (term
->paste_pos
< term
->paste_len
) {
5909 while (n
+ term
->paste_pos
< term
->paste_len
) {
5910 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
5914 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
5915 term
->paste_pos
+= n
;
5917 if (term
->paste_pos
< term
->paste_len
) {
5918 term
->paste_hold
= 1;
5922 sfree(term
->paste_buffer
);
5923 term
->paste_buffer
= NULL
;
5924 term
->paste_len
= 0;
5927 static void deselect(Terminal
*term
)
5929 term
->selstate
= NO_SELECTION
;
5930 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
5933 void term_deselect(Terminal
*term
)
5939 int term_ldisc(Terminal
*term
, int option
)
5941 if (option
== LD_ECHO
)
5942 return term
->term_echoing
;
5943 if (option
== LD_EDIT
)
5944 return term
->term_editing
;
5948 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
5950 bufchain_add(&term
->inbuf
, data
, len
);
5952 if (!term
->in_term_out
) {
5953 term
->in_term_out
= TRUE
;
5954 term_blink(term
, 1);
5956 term
->in_term_out
= FALSE
;
5960 * term_out() always completely empties inbuf. Therefore,
5961 * there's no reason at all to return anything other than zero
5962 * from this function, because there _can't_ be a question of
5963 * the remote side needing to wait until term_out() has cleared
5966 * This is a slightly suboptimal way to deal with SSH2 - in
5967 * principle, the window mechanism would allow us to continue
5968 * to accept data on forwarded ports and X connections even
5969 * while the terminal processing was going slowly - but we
5970 * can't do the 100% right thing without moving the terminal
5971 * processing into a separate thread, and that might hurt
5972 * portability. So we manage stdout buffering the old SSH1 way:
5973 * if the terminal processing goes slowly, the whole SSH
5974 * connection stops accepting data until it's ready.
5976 * In practice, I can't imagine this causing serious trouble.
5981 void term_provide_logctx(Terminal
*term
, void *logctx
)
5983 term
->logctx
= logctx
;