14 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
15 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
16 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
17 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
19 /* Product-order comparisons for rectangular block selection. */
20 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
21 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
23 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
24 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
28 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
29 #define CL_VT100 0x0002 /* VT100 */
30 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
31 #define CL_VT102 0x0008 /* VT102 */
32 #define CL_VT220 0x0010 /* VT220 */
33 #define CL_VT320 0x0020 /* VT320 */
34 #define CL_VT420 0x0040 /* VT420 */
35 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
36 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
37 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
38 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
39 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
41 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
42 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
43 #define TM_VT102 (TM_VT100AVO|CL_VT102)
44 #define TM_VT220 (TM_VT102|CL_VT220)
45 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
46 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
48 #define TM_PUTTY (0xFFFF)
50 #define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
51 #define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
52 #define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
53 #define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
55 #define compatibility(x) \
56 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
57 term->termstate=TOPLEVEL; \
60 #define compatibility2(x,y) \
61 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
62 term->termstate=TOPLEVEL; \
66 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
68 const char sco2ansicolour
[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
70 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
71 const wchar_t sel_nl
[] = SEL_NL
;
74 * Fetch the character at a particular position in a line array,
75 * for purposes of `wordtype'. The reason this isn't just a simple
76 * array reference is that if the character we find is UCSWIDE,
77 * then we must look one space further to the left.
79 #define UCSGET(a, x) \
80 ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
83 * Detect the various aliases of U+0020 SPACE.
85 #define IS_SPACE_CHR(chr) \
86 ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
91 #define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
94 * Internal prototypes.
96 static void resizeline(Terminal
*, termline
*, int);
97 static termline
*lineptr(Terminal
*, int, int, int);
98 static void unlineptr(termline
*);
99 static void do_paint(Terminal
*, Context
, int);
100 static void erase_lots(Terminal
*, int, int, int);
101 static int find_last_nonempty_line(Terminal
*, tree234
*);
102 static void swap_screen(Terminal
*, int, int, int);
103 static void update_sbar(Terminal
*);
104 static void deselect(Terminal
*);
105 static void term_print_finish(Terminal
*);
106 static void scroll(Terminal
*, int, int, int, int);
107 #ifdef OPTIMISE_SCROLL
108 static void scroll_display(Terminal
*, int, int, int);
109 #endif /* OPTIMISE_SCROLL */
111 static termline
*newline(Terminal
*term
, int cols
, int bce
)
116 line
= snew(termline
);
117 line
->chars
= snewn(cols
, termchar
);
118 for (j
= 0; j
< cols
; j
++)
119 line
->chars
[j
] = (bce ? term
->erase_char
: term
->basic_erase_char
);
120 line
->cols
= line
->size
= cols
;
121 line
->lattr
= LATTR_NORM
;
122 line
->temporary
= FALSE
;
128 static void freeline(termline
*line
)
136 static void unlineptr(termline
*line
)
144 * Diagnostic function: verify that a termline has a correct
145 * combining character structure.
147 * This is a performance-intensive check, so it's no longer enabled
150 static void cc_check(termline
*line
)
152 unsigned char *flags
;
155 assert(line
->size
>= line
->cols
);
157 flags
= snewn(line
->size
, unsigned char);
159 for (i
= 0; i
< line
->size
; i
++)
160 flags
[i
] = (i
< line
->cols
);
162 for (i
= 0; i
< line
->cols
; i
++) {
164 while (line
->chars
[j
].cc_next
) {
165 j
+= line
->chars
[j
].cc_next
;
166 assert(j
>= line
->cols
&& j
< line
->size
);
175 assert(j
>= line
->cols
&& j
< line
->size
);
178 if (line
->chars
[j
].cc_next
)
179 j
+= line
->chars
[j
].cc_next
;
186 for (i
= 0; i
< line
->size
; i
++)
187 j
+= (flags
[i
] != 0);
189 assert(j
== line
->size
);
196 * Add a combining character to a character cell.
198 static void add_cc(termline
*line
, int col
, unsigned long chr
)
202 assert(col
>= 0 && col
< line
->cols
);
205 * Start by extending the cols array if the free list is empty.
207 if (!line
->cc_free
) {
209 line
->size
+= 16 + (line
->size
- line
->cols
) / 2;
210 line
->chars
= sresize(line
->chars
, line
->size
, termchar
);
212 while (n
< line
->size
) {
213 if (n
+1 < line
->size
)
214 line
->chars
[n
].cc_next
= 1;
216 line
->chars
[n
].cc_next
= 0;
222 * Now walk the cc list of the cell in question.
224 while (line
->chars
[col
].cc_next
)
225 col
+= line
->chars
[col
].cc_next
;
228 * `col' now points at the last cc currently in this cell; so
229 * we simply add another one.
231 newcc
= line
->cc_free
;
232 if (line
->chars
[newcc
].cc_next
)
233 line
->cc_free
= newcc
+ line
->chars
[newcc
].cc_next
;
236 line
->chars
[newcc
].cc_next
= 0;
237 line
->chars
[newcc
].chr
= chr
;
238 line
->chars
[col
].cc_next
= newcc
- col
;
246 * Clear the combining character list in a character cell.
248 static void clear_cc(termline
*line
, int col
)
250 int oldfree
, origcol
= col
;
252 assert(col
>= 0 && col
< line
->cols
);
254 if (!line
->chars
[col
].cc_next
)
255 return; /* nothing needs doing */
257 oldfree
= line
->cc_free
;
258 line
->cc_free
= col
+ line
->chars
[col
].cc_next
;
259 while (line
->chars
[col
].cc_next
)
260 col
+= line
->chars
[col
].cc_next
;
262 line
->chars
[col
].cc_next
= oldfree
- col
;
264 line
->chars
[col
].cc_next
= 0;
266 line
->chars
[origcol
].cc_next
= 0;
274 * Compare two character cells for equality. Special case required
275 * in do_paint() where we override what we expect the chr and attr
278 static int termchars_equal_override(termchar
*a
, termchar
*b
,
279 unsigned long bchr
, unsigned long battr
)
284 if ((a
->attr
&~ DATTR_MASK
) != (battr
&~ DATTR_MASK
))
286 while (a
->cc_next
|| b
->cc_next
) {
287 if (!a
->cc_next
|| !b
->cc_next
)
288 return FALSE
; /* one cc-list ends, other does not */
291 if (a
->chr
!= b
->chr
)
297 static int termchars_equal(termchar
*a
, termchar
*b
)
299 return termchars_equal_override(a
, b
, b
->chr
, b
->attr
);
303 * Copy a character cell. (Requires a pointer to the destination
304 * termline, so as to access its free list.)
306 static void copy_termchar(termline
*destline
, int x
, termchar
*src
)
308 clear_cc(destline
, x
);
310 destline
->chars
[x
] = *src
; /* copy everything except cc-list */
311 destline
->chars
[x
].cc_next
= 0; /* and make sure this is zero */
313 while (src
->cc_next
) {
315 add_cc(destline
, x
, src
->chr
);
324 * Move a character cell within its termline.
326 static void move_termchar(termline
*line
, termchar
*dest
, termchar
*src
)
328 /* First clear the cc list from the original char, just in case. */
329 clear_cc(line
, dest
- line
->chars
);
331 /* Move the character cell and adjust its cc_next. */
332 *dest
= *src
; /* copy everything except cc-list */
334 dest
->cc_next
= src
->cc_next
- (dest
-src
);
336 /* Ensure the original cell doesn't have a cc list. */
345 * Compress and decompress a termline into an RLE-based format for
346 * storing in scrollback. (Since scrollback almost never needs to
347 * be modified and exists in huge quantities, this is a sensible
348 * tradeoff, particularly since it allows us to continue adding
349 * features to the main termchar structure without proportionally
350 * bloating the terminal emulator's memory footprint unless those
351 * features are in constant use.)
357 static void add(struct buf
*b
, unsigned char c
)
359 if (b
->len
>= b
->size
) {
360 b
->size
= (b
->len
* 3 / 2) + 512;
361 b
->data
= sresize(b
->data
, b
->size
, unsigned char);
363 b
->data
[b
->len
++] = c
;
365 static int get(struct buf
*b
)
367 return b
->data
[b
->len
++];
369 static void makerle(struct buf
*b
, termline
*ldata
,
370 void (*makeliteral
)(struct buf
*b
, termchar
*c
,
371 unsigned long *state
))
373 int hdrpos
, hdrsize
, n
, prevlen
, prevpos
, thislen
, thispos
, prev2
;
374 termchar
*c
= ldata
->chars
;
375 unsigned long state
= 0, oldstate
;
382 prevlen
= prevpos
= 0;
387 makeliteral(b
, c
++, &state
);
388 thislen
= b
->len
- thispos
;
389 if (thislen
== prevlen
&&
390 !memcmp(b
->data
+ prevpos
, b
->data
+ thispos
, thislen
)) {
392 * This literal precisely matches the previous one.
393 * Turn it into a run if it's worthwhile.
395 * With one-byte literals, it costs us two bytes to
396 * encode a run, plus another byte to write the header
397 * to resume normal output; so a three-element run is
398 * neutral, and anything beyond that is unconditionally
399 * worthwhile. With two-byte literals or more, even a
402 if (thislen
> 1 || prev2
) {
406 * It's worth encoding a run. Start at prevpos,
407 * unless hdrsize==0 in which case we can back up
408 * another one and start by overwriting hdrpos.
411 hdrsize
--; /* remove the literal at prevpos */
415 prevpos
-= prevlen
;/* and possibly another one */
419 assert(prevpos
== hdrpos
+ 1);
421 b
->len
= prevpos
+prevlen
;
423 memmove(b
->data
+ prevpos
+1, b
->data
+ prevpos
, prevlen
);
425 b
->len
= prevpos
+prevlen
+1;
427 * Terminate the previous run of ordinary
430 assert(hdrsize
>= 1 && hdrsize
<= 128);
431 b
->data
[hdrpos
] = hdrsize
- 1;
434 runlen
= prev2 ?
3 : 2;
436 while (n
> 0 && runlen
< 129) {
440 makeliteral(b
, c
, &state
);
441 tmplen
= b
->len
- tmppos
;
443 if (tmplen
!= thislen
||
444 memcmp(b
->data
+ runpos
+1, b
->data
+ tmppos
, tmplen
)) {
446 break; /* run over */
451 assert(runlen
>= 2 && runlen
<= 129);
452 b
->data
[runpos
] = runlen
+ 0x80 - 2;
457 /* And ensure this run doesn't interfere with the next. */
458 prevlen
= prevpos
= 0;
464 * Just flag that the previous two literals were
465 * identical, in case we find a third identical one
466 * we want to turn into a run.
479 * This character isn't (yet) part of a run. Add it to
483 if (hdrsize
== 128) {
484 b
->data
[hdrpos
] = hdrsize
- 1;
488 prevlen
= prevpos
= 0;
497 assert(hdrsize
<= 128);
498 b
->data
[hdrpos
] = hdrsize
- 1;
503 static void makeliteral_chr(struct buf
*b
, termchar
*c
, unsigned long *state
)
506 * My encoding for characters is UTF-8-like, in that it stores
507 * 7-bit ASCII in one byte and uses high-bit-set bytes as
508 * introducers to indicate a longer sequence. However, it's
509 * unlike UTF-8 in that it doesn't need to be able to
510 * resynchronise, and therefore I don't want to waste two bits
511 * per byte on having recognisable continuation characters.
512 * Also I don't want to rule out the possibility that I may one
513 * day use values 0x80000000-0xFFFFFFFF for interesting
514 * purposes, so unlike UTF-8 I need a full 32-bit range.
515 * Accordingly, here is my encoding:
517 * 00000000-0000007F: 0xxxxxxx (but see below)
518 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
519 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
520 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
521 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
523 * (`Z' is like `x' but is always going to be zero since the
524 * values I'm encoding don't go above 2^32. In principle the
525 * five-byte form of the encoding could extend to 2^35, and
526 * there could be six-, seven-, eight- and nine-byte forms as
527 * well to allow up to 64-bit values to be encoded. But that's
528 * completely unnecessary for these purposes!)
530 * The encoding as written above would be very simple, except
531 * that 7-bit ASCII can occur in several different ways in the
532 * terminal data; sometimes it crops up in the D800 page
533 * (CSET_ASCII) but at other times it's in the 0000 page (real
534 * Unicode). Therefore, this encoding is actually _stateful_:
535 * the one-byte encoding of 00-7F actually indicates `reuse the
536 * upper three bytes of the last character', and to encode an
537 * absolute value of 00-7F you need to use the two-byte form
540 if ((c
->chr
& ~0x7F) == *state
) {
541 add(b
, (unsigned char)(c
->chr
& 0x7F));
542 } else if (c
->chr
< 0x4000) {
543 add(b
, (unsigned char)(((c
->chr
>> 8) & 0x3F) | 0x80));
544 add(b
, (unsigned char)(c
->chr
& 0xFF));
545 } else if (c
->chr
< 0x200000) {
546 add(b
, (unsigned char)(((c
->chr
>> 16) & 0x1F) | 0xC0));
547 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
548 add(b
, (unsigned char)(c
->chr
& 0xFF));
549 } else if (c
->chr
< 0x10000000) {
550 add(b
, (unsigned char)(((c
->chr
>> 24) & 0x0F) | 0xE0));
551 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
552 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
553 add(b
, (unsigned char)(c
->chr
& 0xFF));
556 add(b
, (unsigned char)((c
->chr
>> 24) & 0xFF));
557 add(b
, (unsigned char)((c
->chr
>> 16) & 0xFF));
558 add(b
, (unsigned char)((c
->chr
>> 8) & 0xFF));
559 add(b
, (unsigned char)(c
->chr
& 0xFF));
561 *state
= c
->chr
& ~0xFF;
563 static void makeliteral_attr(struct buf
*b
, termchar
*c
, unsigned long *state
)
566 * My encoding for attributes is 16-bit-granular and assumes
567 * that the top bit of the word is never required. I either
568 * store a two-byte value with the top bit clear (indicating
569 * just that value), or a four-byte value with the top bit set
570 * (indicating the same value with its top bit clear).
572 * However, first I permute the bits of the attribute value, so
573 * that the eight bits of colour (four in each of fg and bg)
574 * which are never non-zero unless xterm 256-colour mode is in
575 * use are placed higher up the word than everything else. This
576 * ensures that attribute values remain 16-bit _unless_ the
577 * user uses extended colour.
579 unsigned attr
, colourbits
;
583 assert(ATTR_BGSHIFT
> ATTR_FGSHIFT
);
585 colourbits
= (attr
>> (ATTR_BGSHIFT
+ 4)) & 0xF;
587 colourbits
|= (attr
>> (ATTR_FGSHIFT
+ 4)) & 0xF;
589 attr
= (((attr
>> (ATTR_BGSHIFT
+ 8)) << (ATTR_BGSHIFT
+ 4)) |
590 (attr
& ((1 << (ATTR_BGSHIFT
+ 4))-1)));
591 attr
= (((attr
>> (ATTR_FGSHIFT
+ 8)) << (ATTR_FGSHIFT
+ 4)) |
592 (attr
& ((1 << (ATTR_FGSHIFT
+ 4))-1)));
594 attr
|= (colourbits
<< (32-9));
597 add(b
, (unsigned char)((attr
>> 8) & 0xFF));
598 add(b
, (unsigned char)(attr
& 0xFF));
600 add(b
, (unsigned char)(((attr
>> 24) & 0x7F) | 0x80));
601 add(b
, (unsigned char)((attr
>> 16) & 0xFF));
602 add(b
, (unsigned char)((attr
>> 8) & 0xFF));
603 add(b
, (unsigned char)(attr
& 0xFF));
606 static void makeliteral_cc(struct buf
*b
, termchar
*c
, unsigned long *state
)
609 * For combining characters, I just encode a bunch of ordinary
610 * chars using makeliteral_chr, and terminate with a \0
611 * character (which I know won't come up as a combining char
614 * I don't use the stateful encoding in makeliteral_chr.
616 unsigned long zstate
;
625 makeliteral_chr(b
, c
, &zstate
);
630 makeliteral_chr(b
, &z
, &zstate
);
633 static termline
*decompressline(unsigned char *data
, int *bytes_used
);
635 static unsigned char *compressline(termline
*ldata
)
637 struct buf buffer
= { NULL
, 0, 0 }, *b
= &buffer
;
640 * First, store the column count, 7 bits at a time, least
641 * significant `digit' first, with the high bit set on all but
647 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
650 add(b
, (unsigned char)(n
));
654 * Next store the lattrs; same principle.
657 int n
= ldata
->lattr
;
659 add(b
, (unsigned char)((n
& 0x7F) | 0x80));
662 add(b
, (unsigned char)(n
));
666 * Now we store a sequence of separate run-length encoded
667 * fragments, each containing exactly as many symbols as there
668 * are columns in the ldata.
670 * All of these have a common basic format:
672 * - a byte 00-7F indicates that X+1 literals follow it
673 * - a byte 80-FF indicates that a single literal follows it
674 * and expects to be repeated (X-0x80)+2 times.
676 * The format of the `literals' varies between the fragments.
678 makerle(b
, ldata
, makeliteral_chr
);
679 makerle(b
, ldata
, makeliteral_attr
);
680 makerle(b
, ldata
, makeliteral_cc
);
683 * Diagnostics: ensure that the compressed data really does
684 * decompress to the right thing.
686 * This is a bit performance-heavy for production code.
689 #ifndef CHECK_SB_COMPRESSION
695 #ifdef DIAGNOSTIC_SB_COMPRESSION
696 for (i
= 0; i
< b
->len
; i
++) {
697 printf(" %02x ", b
->data
[i
]);
702 dcl
= decompressline(b
->data
, &dused
);
703 assert(b
->len
== dused
);
704 assert(ldata
->cols
== dcl
->cols
);
705 assert(ldata
->lattr
== dcl
->lattr
);
706 for (i
= 0; i
< ldata
->cols
; i
++)
707 assert(termchars_equal(&ldata
->chars
[i
], &dcl
->chars
[i
]));
709 #ifdef DIAGNOSTIC_SB_COMPRESSION
710 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
711 ldata
->cols
, 4 * ldata
->cols
, dused
,
712 (double)dused
/ (4 * ldata
->cols
));
718 #endif /* TERM_CC_DIAGS */
721 * Trim the allocated memory so we don't waste any, and return.
723 return sresize(b
->data
, b
->len
, unsigned char);
726 static void readrle(struct buf
*b
, termline
*ldata
,
727 void (*readliteral
)(struct buf
*b
, termchar
*c
,
728 termline
*ldata
, unsigned long *state
))
731 unsigned long state
= 0;
733 while (n
< ldata
->cols
) {
739 int pos
= b
->len
, count
= hdr
+ 2 - 0x80;
741 assert(n
< ldata
->cols
);
743 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
747 /* Just a sequence of consecutive literals. */
751 assert(n
< ldata
->cols
);
752 readliteral(b
, ldata
->chars
+ n
, ldata
, &state
);
758 assert(n
== ldata
->cols
);
760 static void readliteral_chr(struct buf
*b
, termchar
*c
, termline
*ldata
,
761 unsigned long *state
)
766 * 00000000-0000007F: 0xxxxxxx
767 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
768 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
769 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
770 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
775 c
->chr
= byte
| *state
;
776 } else if (byte
< 0xC0) {
777 c
->chr
= (byte
&~ 0xC0) << 8;
779 } else if (byte
< 0xE0) {
780 c
->chr
= (byte
&~ 0xE0) << 16;
781 c
->chr
|= get(b
) << 8;
783 } else if (byte
< 0xF0) {
784 c
->chr
= (byte
&~ 0xF0) << 24;
785 c
->chr
|= get(b
) << 16;
786 c
->chr
|= get(b
) << 8;
789 assert(byte
== 0xF0);
790 c
->chr
= get(b
) << 24;
791 c
->chr
|= get(b
) << 16;
792 c
->chr
|= get(b
) << 8;
795 *state
= c
->chr
& ~0xFF;
797 static void readliteral_attr(struct buf
*b
, termchar
*c
, termline
*ldata
,
798 unsigned long *state
)
800 unsigned val
, attr
, colourbits
;
812 colourbits
= (val
>> (32-9)) & 0xFF;
813 attr
= (val
& ((1<<(32-9))-1));
815 attr
= (((attr
>> (ATTR_FGSHIFT
+ 4)) << (ATTR_FGSHIFT
+ 8)) |
816 (attr
& ((1 << (ATTR_FGSHIFT
+ 4))-1)));
817 attr
= (((attr
>> (ATTR_BGSHIFT
+ 4)) << (ATTR_BGSHIFT
+ 8)) |
818 (attr
& ((1 << (ATTR_BGSHIFT
+ 4))-1)));
820 attr
|= (colourbits
>> 4) << (ATTR_BGSHIFT
+ 4);
821 attr
|= (colourbits
& 0xF) << (ATTR_FGSHIFT
+ 4);
825 static void readliteral_cc(struct buf
*b
, termchar
*c
, termline
*ldata
,
826 unsigned long *state
)
829 unsigned long zstate
;
830 int x
= c
- ldata
->chars
;
836 readliteral_chr(b
, &n
, ldata
, &zstate
);
839 add_cc(ldata
, x
, n
.chr
);
843 static termline
*decompressline(unsigned char *data
, int *bytes_used
)
845 int ncols
, byte
, shift
;
846 struct buf buffer
, *b
= &buffer
;
853 * First read in the column count.
858 ncols
|= (byte
& 0x7F) << shift
;
860 } while (byte
& 0x80);
863 * Now create the output termline.
865 ldata
= snew(termline
);
866 ldata
->chars
= snewn(ncols
, termchar
);
867 ldata
->cols
= ldata
->size
= ncols
;
868 ldata
->temporary
= TRUE
;
872 * We must set all the cc pointers in ldata->chars to 0 right
873 * now, so that cc diagnostics that verify the integrity of the
874 * whole line will make sense while we're in the middle of
879 for (i
= 0; i
< ldata
->cols
; i
++)
880 ldata
->chars
[i
].cc_next
= 0;
884 * Now read in the lattr.
886 ldata
->lattr
= shift
= 0;
889 ldata
->lattr
|= (byte
& 0x7F) << shift
;
891 } while (byte
& 0x80);
894 * Now we read in each of the RLE streams in turn.
896 readrle(b
, ldata
, readliteral_chr
);
897 readrle(b
, ldata
, readliteral_attr
);
898 readrle(b
, ldata
, readliteral_cc
);
900 /* Return the number of bytes read, for diagnostic purposes. */
902 *bytes_used
= b
->len
;
908 * Resize a line to make it `cols' columns wide.
910 static void resizeline(Terminal
*term
, termline
*line
, int cols
)
914 if (line
->cols
!= cols
) {
916 oldcols
= line
->cols
;
919 * This line is the wrong length, which probably means it
920 * hasn't been accessed since a resize. Resize it now.
922 * First, go through all the characters that will be thrown
923 * out in the resize (if we're shrinking the line) and
924 * return their cc lists to the cc free list.
926 for (i
= cols
; i
< oldcols
; i
++)
930 * If we're shrinking the line, we now bodily move the
931 * entire cc section from where it started to where it now
932 * needs to be. (We have to do this before the resize, so
933 * that the data we're copying is still there. However, if
934 * we're expanding, we have to wait until _after_ the
935 * resize so that the space we're copying into is there.)
938 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
939 (line
->size
- line
->cols
) * TSIZE
);
942 * Now do the actual resize, leaving the _same_ amount of
943 * cc space as there was to begin with.
945 line
->size
+= cols
- oldcols
;
946 line
->chars
= sresize(line
->chars
, line
->size
, TTYPE
);
950 * If we're expanding the line, _now_ we move the cc
954 memmove(line
->chars
+ cols
, line
->chars
+ oldcols
,
955 (line
->size
- line
->cols
) * TSIZE
);
958 * Go through what's left of the original line, and adjust
959 * the first cc_next pointer in each list. (All the
960 * subsequent ones are still valid because they are
961 * relative offsets within the cc block.) Also do the same
962 * to the head of the cc_free list.
964 for (i
= 0; i
< oldcols
&& i
< cols
; i
++)
965 if (line
->chars
[i
].cc_next
)
966 line
->chars
[i
].cc_next
+= cols
- oldcols
;
968 line
->cc_free
+= cols
- oldcols
;
971 * And finally fill in the new space with erase chars. (We
972 * don't have to worry about cc lists here, because we
973 * _know_ the erase char doesn't have one.)
975 for (i
= oldcols
; i
< cols
; i
++)
976 line
->chars
[i
] = term
->basic_erase_char
;
985 * Get the number of lines in the scrollback.
987 static int sblines(Terminal
*term
)
989 int sblines
= count234(term
->scrollback
);
990 if (term
->cfg
.erase_to_scrollback
&&
991 term
->alt_which
&& term
->alt_screen
) {
992 sblines
+= term
->alt_sblines
;
998 * Retrieve a line of the screen or of the scrollback, according to
999 * whether the y coordinate is non-negative or negative
1002 static termline
*lineptr(Terminal
*term
, int y
, int lineno
, int screen
)
1009 whichtree
= term
->screen
;
1016 if (term
->cfg
.erase_to_scrollback
&&
1017 term
->alt_which
&& term
->alt_screen
) {
1018 altlines
= term
->alt_sblines
;
1020 if (y
< -altlines
) {
1021 whichtree
= term
->scrollback
;
1022 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
1024 whichtree
= term
->alt_screen
;
1025 treeindex
= y
+ term
->alt_sblines
;
1026 /* treeindex = y + count234(term->alt_screen); */
1029 if (whichtree
== term
->scrollback
) {
1030 unsigned char *cline
= index234(whichtree
, treeindex
);
1031 line
= decompressline(cline
, NULL
);
1033 line
= index234(whichtree
, treeindex
);
1036 /* We assume that we don't screw up and retrieve something out of range. */
1038 fatalbox("line==NULL in terminal.c\n"
1039 "lineno=%d y=%d w=%d h=%d\n"
1040 "count(scrollback=%p)=%d\n"
1041 "count(screen=%p)=%d\n"
1042 "count(alt=%p)=%d alt_sblines=%d\n"
1043 "whichtree=%p treeindex=%d\n\n"
1044 "Please contact <putty@projects.tartarus.org> "
1045 "and pass on the above information.",
1046 lineno
, y
, term
->cols
, term
->rows
,
1047 term
->scrollback
, count234(term
->scrollback
),
1048 term
->screen
, count234(term
->screen
),
1049 term
->alt_screen
, count234(term
->alt_screen
), term
->alt_sblines
,
1050 whichtree
, treeindex
);
1052 assert(line
!= NULL
);
1054 resizeline(term
, line
, term
->cols
);
1055 /* FIXME: should we sort the compressed scrollback out here? */
1060 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
1061 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
1063 static void term_schedule_tblink(Terminal
*term
);
1064 static void term_schedule_cblink(Terminal
*term
);
1066 static void term_timer(void *ctx
, long now
)
1068 Terminal
*term
= (Terminal
*)ctx
;
1071 if (term
->tblink_pending
&& now
- term
->next_tblink
>= 0) {
1072 term
->tblinker
= !term
->tblinker
;
1073 term
->tblink_pending
= FALSE
;
1074 term_schedule_tblink(term
);
1078 if (term
->cblink_pending
&& now
- term
->next_cblink
>= 0) {
1079 term
->cblinker
= !term
->cblinker
;
1080 term
->cblink_pending
= FALSE
;
1081 term_schedule_cblink(term
);
1085 if (term
->in_vbell
&& now
- term
->vbell_end
>= 0) {
1086 term
->in_vbell
= FALSE
;
1091 (term
->window_update_pending
&& now
- term
->next_update
>= 0))
1095 static void term_schedule_update(Terminal
*term
)
1097 if (!term
->window_update_pending
) {
1098 term
->window_update_pending
= TRUE
;
1099 term
->next_update
= schedule_timer(UPDATE_DELAY
, term_timer
, term
);
1104 * Call this whenever the terminal window state changes, to queue
1107 static void seen_disp_event(Terminal
*term
)
1109 term
->seen_disp_event
= TRUE
; /* for scrollback-reset-on-activity */
1110 term_schedule_update(term
);
1114 * Call when the terminal's blinking-text settings change, or when
1115 * a text blink has just occurred.
1117 static void term_schedule_tblink(Terminal
*term
)
1119 if (term
->blink_is_real
) {
1120 if (!term
->tblink_pending
)
1121 term
->next_tblink
= schedule_timer(TBLINK_DELAY
, term_timer
, term
);
1122 term
->tblink_pending
= TRUE
;
1124 term
->tblinker
= 1; /* reset when not in use */
1125 term
->tblink_pending
= FALSE
;
1130 * Likewise with cursor blinks.
1132 static void term_schedule_cblink(Terminal
*term
)
1134 if (term
->cfg
.blink_cur
&& term
->has_focus
) {
1135 if (!term
->cblink_pending
)
1136 term
->next_cblink
= schedule_timer(CBLINK_DELAY
, term_timer
, term
);
1137 term
->cblink_pending
= TRUE
;
1139 term
->cblinker
= 1; /* reset when not in use */
1140 term
->cblink_pending
= FALSE
;
1145 * Call to reset cursor blinking on new output.
1147 static void term_reset_cblink(Terminal
*term
)
1149 seen_disp_event(term
);
1151 term
->cblink_pending
= FALSE
;
1152 term_schedule_cblink(term
);
1156 * Call to begin a visual bell.
1158 static void term_schedule_vbell(Terminal
*term
, int already_started
,
1161 long ticks_already_gone
;
1163 if (already_started
)
1164 ticks_already_gone
= GETTICKCOUNT() - startpoint
;
1166 ticks_already_gone
= 0;
1168 if (ticks_already_gone
< VBELL_DELAY
) {
1169 term
->in_vbell
= TRUE
;
1170 term
->vbell_end
= schedule_timer(VBELL_DELAY
- ticks_already_gone
,
1173 term
->in_vbell
= FALSE
;
1178 * Set up power-on settings for the terminal.
1179 * If 'clear' is false, don't actually clear the primary screen, and
1180 * position the cursor below the last non-blank line (scrolling if
1183 static void power_on(Terminal
*term
, int clear
)
1185 term
->alt_x
= term
->alt_y
= 0;
1186 term
->savecurs
.x
= term
->savecurs
.y
= 0;
1187 term
->alt_t
= term
->marg_t
= 0;
1188 if (term
->rows
!= -1)
1189 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1191 term
->alt_b
= term
->marg_b
= 0;
1192 if (term
->cols
!= -1) {
1194 for (i
= 0; i
< term
->cols
; i
++)
1195 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1197 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1198 term
->alt_ins
= term
->insert
= FALSE
;
1199 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
1200 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1201 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
1202 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
1203 term
->utf_state
= 0;
1204 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
1205 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= CSET_ASCII
;
1207 term
->in_vbell
= FALSE
;
1208 term
->cursor_on
= 1;
1209 term
->big_cursor
= 0;
1210 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
1211 term
->term_editing
= term
->term_echoing
= FALSE
;
1212 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
1213 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
1214 term
->use_bce
= term
->cfg
.bce
;
1215 term
->blink_is_real
= term
->cfg
.blinktext
;
1216 term
->erase_char
= term
->basic_erase_char
;
1217 term
->alt_which
= 0;
1218 term_print_finish(term
);
1221 for (i
= 0; i
< 256; i
++)
1222 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1225 swap_screen(term
, 1, FALSE
, FALSE
);
1226 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1227 swap_screen(term
, 0, FALSE
, FALSE
);
1229 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1230 term
->curs
.y
= find_last_nonempty_line(term
, term
->screen
) + 1;
1231 if (term
->curs
.y
== term
->rows
) {
1233 scroll(term
, 0, term
->rows
- 1, 1, TRUE
);
1239 term_schedule_tblink(term
);
1240 term_schedule_cblink(term
);
1244 * Force a screen update.
1246 void term_update(Terminal
*term
)
1250 term
->window_update_pending
= FALSE
;
1252 ctx
= get_ctx(term
->frontend
);
1254 int need_sbar_update
= term
->seen_disp_event
;
1255 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
1256 term
->disptop
= 0; /* return to main screen */
1257 term
->seen_disp_event
= 0;
1258 need_sbar_update
= TRUE
;
1261 if (need_sbar_update
)
1263 do_paint(term
, ctx
, TRUE
);
1264 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
1270 * Called from front end when a keypress occurs, to trigger
1271 * anything magical that needs to happen in that situation.
1273 void term_seen_key_event(Terminal
*term
)
1276 * On any keypress, clear the bell overload mechanism
1277 * completely, on the grounds that large numbers of
1278 * beeps coming from deliberate key action are likely
1279 * to be intended (e.g. beeps from filename completion
1280 * blocking repeatedly).
1282 term
->beep_overloaded
= FALSE
;
1283 while (term
->beephead
) {
1284 struct beeptime
*tmp
= term
->beephead
;
1285 term
->beephead
= tmp
->next
;
1288 term
->beeptail
= NULL
;
1292 * Reset the scrollback on keypress, if we're doing that.
1294 if (term
->cfg
.scroll_on_key
) {
1295 term
->disptop
= 0; /* return to main screen */
1296 seen_disp_event(term
);
1301 * Same as power_on(), but an external function.
1303 void term_pwron(Terminal
*term
, int clear
)
1305 power_on(term
, clear
);
1306 if (term
->ldisc
) /* cause ldisc to notice changes */
1307 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1313 static void set_erase_char(Terminal
*term
)
1315 term
->erase_char
= term
->basic_erase_char
;
1317 term
->erase_char
.attr
= (term
->curr_attr
&
1318 (ATTR_FGMASK
| ATTR_BGMASK
));
1322 * When the user reconfigures us, we need to check the forbidden-
1323 * alternate-screen config option, disable raw mouse mode if the
1324 * user has disabled mouse reporting, and abandon a print job if
1325 * the user has disabled printing.
1327 void term_reconfig(Terminal
*term
, Config
*cfg
)
1330 * Before adopting the new config, check all those terminal
1331 * settings which control power-on defaults; and if they've
1332 * changed, we will modify the current state as well as the
1333 * default one. The full list is: Auto wrap mode, DEC Origin
1334 * Mode, BCE, blinking text, character classes.
1336 int reset_wrap
, reset_decom
, reset_bce
, reset_tblink
, reset_charclass
;
1339 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
1340 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
1341 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
1342 reset_tblink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
1343 reset_charclass
= 0;
1344 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
1345 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
1346 reset_charclass
= 1;
1349 * If the bidi or shaping settings have changed, flush the bidi
1352 if (term
->cfg
.arabicshaping
!= cfg
->arabicshaping
||
1353 term
->cfg
.bidi
!= cfg
->bidi
) {
1354 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1355 sfree(term
->pre_bidi_cache
[i
].chars
);
1356 sfree(term
->post_bidi_cache
[i
].chars
);
1357 term
->pre_bidi_cache
[i
].width
= -1;
1358 term
->pre_bidi_cache
[i
].chars
= NULL
;
1359 term
->post_bidi_cache
[i
].width
= -1;
1360 term
->post_bidi_cache
[i
].chars
= NULL
;
1364 term
->cfg
= *cfg
; /* STRUCTURE COPY */
1367 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
1369 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
1371 term
->use_bce
= term
->cfg
.bce
;
1372 set_erase_char(term
);
1375 term
->blink_is_real
= term
->cfg
.blinktext
;
1377 if (reset_charclass
)
1378 for (i
= 0; i
< 256; i
++)
1379 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
1381 if (term
->cfg
.no_alt_screen
)
1382 swap_screen(term
, 0, FALSE
, FALSE
);
1383 if (term
->cfg
.no_mouse_rep
) {
1384 term
->xterm_mouse
= 0;
1385 set_raw_mouse_mode(term
->frontend
, 0);
1387 if (term
->cfg
.no_remote_charset
) {
1388 term
->cset_attr
[0] = term
->cset_attr
[1] = CSET_ASCII
;
1389 term
->sco_acs
= term
->alt_sco_acs
= 0;
1392 if (!*term
->cfg
.printer
) {
1393 term_print_finish(term
);
1395 term_schedule_tblink(term
);
1396 term_schedule_cblink(term
);
1400 * Clear the scrollback.
1402 void term_clrsb(Terminal
*term
)
1404 unsigned char *line
;
1406 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
1407 sfree(line
); /* this is compressed data, not a termline */
1409 term
->tempsblines
= 0;
1410 term
->alt_sblines
= 0;
1415 * Initialise the terminal.
1417 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
1423 * Allocate a new Terminal structure and initialise the fields
1426 term
= snew(Terminal
);
1427 term
->frontend
= frontend
;
1428 term
->ucsdata
= ucsdata
;
1429 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
1430 term
->logctx
= NULL
;
1431 term
->compatibility_level
= TM_PUTTY
;
1432 strcpy(term
->id_string
, "\033[?6c");
1433 term
->cblink_pending
= term
->tblink_pending
= FALSE
;
1434 term
->paste_buffer
= NULL
;
1435 term
->paste_len
= 0;
1436 term
->last_paste
= 0;
1437 bufchain_init(&term
->inbuf
);
1438 bufchain_init(&term
->printer_buf
);
1439 term
->printing
= term
->only_printing
= FALSE
;
1440 term
->print_job
= NULL
;
1441 term
->vt52_mode
= FALSE
;
1442 term
->cr_lf_return
= FALSE
;
1443 term
->seen_disp_event
= FALSE
;
1444 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
1445 term
->reset_132
= FALSE
;
1446 term
->cblinker
= term
->tblinker
= 0;
1447 term
->has_focus
= 1;
1448 term
->repeat_off
= FALSE
;
1449 term
->termstate
= TOPLEVEL
;
1450 term
->selstate
= NO_SELECTION
;
1453 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
1454 term
->tempsblines
= 0;
1455 term
->alt_sblines
= 0;
1457 term
->disptext
= NULL
;
1458 term
->dispcursx
= term
->dispcursy
= -1;
1461 term
->rows
= term
->cols
= -1;
1462 power_on(term
, TRUE
);
1463 term
->beephead
= term
->beeptail
= NULL
;
1464 #ifdef OPTIMISE_SCROLL
1465 term
->scrollhead
= term
->scrolltail
= NULL
;
1466 #endif /* OPTIMISE_SCROLL */
1468 term
->lastbeep
= FALSE
;
1469 term
->beep_overloaded
= FALSE
;
1470 term
->attr_mask
= 0xffffffff;
1471 term
->resize_fn
= NULL
;
1472 term
->resize_ctx
= NULL
;
1473 term
->in_term_out
= FALSE
;
1475 term
->ltemp_size
= 0;
1476 term
->wcFrom
= NULL
;
1478 term
->wcFromTo_size
= 0;
1480 term
->window_update_pending
= FALSE
;
1482 term
->bidi_cache_size
= 0;
1483 term
->pre_bidi_cache
= term
->post_bidi_cache
= NULL
;
1486 term
->basic_erase_char
.chr
= CSET_ASCII
| ' ';
1487 term
->basic_erase_char
.attr
= ATTR_DEFAULT
;
1488 term
->basic_erase_char
.cc_next
= 0;
1489 term
->erase_char
= term
->basic_erase_char
;
1494 void term_free(Terminal
*term
)
1497 struct beeptime
*beep
;
1500 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
1501 sfree(line
); /* compressed data, not a termline */
1502 freetree234(term
->scrollback
);
1503 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
1505 freetree234(term
->screen
);
1506 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
1508 freetree234(term
->alt_screen
);
1509 if (term
->disptext
) {
1510 for (i
= 0; i
< term
->rows
; i
++)
1511 freeline(term
->disptext
[i
]);
1513 sfree(term
->disptext
);
1514 while (term
->beephead
) {
1515 beep
= term
->beephead
;
1516 term
->beephead
= beep
->next
;
1519 bufchain_clear(&term
->inbuf
);
1521 printer_finish_job(term
->print_job
);
1522 bufchain_clear(&term
->printer_buf
);
1523 sfree(term
->paste_buffer
);
1525 sfree(term
->wcFrom
);
1528 for (i
= 0; i
< term
->bidi_cache_size
; i
++) {
1529 sfree(term
->pre_bidi_cache
[i
].chars
);
1530 sfree(term
->post_bidi_cache
[i
].chars
);
1532 sfree(term
->pre_bidi_cache
);
1533 sfree(term
->post_bidi_cache
);
1535 expire_timer_context(term
);
1541 * Set up the terminal for a given size.
1543 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
1546 termline
**newdisp
, *line
;
1547 int i
, j
, oldrows
= term
->rows
;
1549 int save_alt_which
= term
->alt_which
;
1551 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
1552 newsavelines
== term
->savelines
)
1553 return; /* nothing to do */
1555 /* Behave sensibly if we're given zero (or negative) rows/cols */
1557 if (newrows
< 1) newrows
= 1;
1558 if (newcols
< 1) newcols
= 1;
1561 swap_screen(term
, 0, FALSE
, FALSE
);
1563 term
->alt_t
= term
->marg_t
= 0;
1564 term
->alt_b
= term
->marg_b
= newrows
- 1;
1566 if (term
->rows
== -1) {
1567 term
->scrollback
= newtree234(NULL
);
1568 term
->screen
= newtree234(NULL
);
1569 term
->tempsblines
= 0;
1574 * Resize the screen and scrollback. We only need to shift
1575 * lines around within our data structures, because lineptr()
1576 * will take care of resizing each individual line if
1579 * - If the new screen is longer, we shunt lines in from temporary
1580 * scrollback if possible, otherwise we add new blank lines at
1583 * - If the new screen is shorter, we remove any blank lines at
1584 * the bottom if possible, otherwise shunt lines above the cursor
1585 * to scrollback if possible, otherwise delete lines below the
1588 * - Then, if the new scrollback length is less than the
1589 * amount of scrollback we actually have, we must throw some
1592 sblen
= count234(term
->scrollback
);
1593 /* Do this loop to expand the screen if newrows > rows */
1594 assert(term
->rows
== count234(term
->screen
));
1595 while (term
->rows
< newrows
) {
1596 if (term
->tempsblines
> 0) {
1597 unsigned char *cline
;
1598 /* Insert a line from the scrollback at the top of the screen. */
1599 assert(sblen
>= term
->tempsblines
);
1600 cline
= delpos234(term
->scrollback
, --sblen
);
1601 line
= decompressline(cline
, NULL
);
1603 line
->temporary
= FALSE
; /* reconstituted line is now real */
1604 term
->tempsblines
-= 1;
1605 addpos234(term
->screen
, line
, 0);
1607 term
->savecurs
.y
+= 1;
1609 /* Add a new blank line at the bottom of the screen. */
1610 line
= newline(term
, newcols
, FALSE
);
1611 addpos234(term
->screen
, line
, count234(term
->screen
));
1615 /* Do this loop to shrink the screen if newrows < rows */
1616 while (term
->rows
> newrows
) {
1617 if (term
->curs
.y
< term
->rows
- 1) {
1618 /* delete bottom row, unless it contains the cursor */
1619 sfree(delpos234(term
->screen
, term
->rows
- 1));
1621 /* push top row to scrollback */
1622 line
= delpos234(term
->screen
, 0);
1623 addpos234(term
->scrollback
, compressline(line
), sblen
++);
1625 term
->tempsblines
+= 1;
1627 term
->savecurs
.y
-= 1;
1631 assert(term
->rows
== newrows
);
1632 assert(count234(term
->screen
) == newrows
);
1634 /* Delete any excess lines from the scrollback. */
1635 while (sblen
> newsavelines
) {
1636 line
= delpos234(term
->scrollback
, 0);
1640 if (sblen
< term
->tempsblines
)
1641 term
->tempsblines
= sblen
;
1642 assert(count234(term
->scrollback
) <= newsavelines
);
1643 assert(count234(term
->scrollback
) >= term
->tempsblines
);
1646 /* Make a new displayed text buffer. */
1647 newdisp
= snewn(newrows
, termline
*);
1648 for (i
= 0; i
< newrows
; i
++) {
1649 newdisp
[i
] = newline(term
, newcols
, FALSE
);
1650 for (j
= 0; j
< newcols
; j
++)
1651 newdisp
[i
]->chars
[j
].attr
= ATTR_INVALID
;
1653 if (term
->disptext
) {
1654 for (i
= 0; i
< oldrows
; i
++)
1655 freeline(term
->disptext
[i
]);
1657 sfree(term
->disptext
);
1658 term
->disptext
= newdisp
;
1659 term
->dispcursx
= term
->dispcursy
= -1;
1661 /* Make a new alternate screen. */
1662 newalt
= newtree234(NULL
);
1663 for (i
= 0; i
< newrows
; i
++) {
1664 line
= newline(term
, newcols
, TRUE
);
1665 addpos234(newalt
, line
, i
);
1667 if (term
->alt_screen
) {
1668 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
1670 freetree234(term
->alt_screen
);
1672 term
->alt_screen
= newalt
;
1673 term
->alt_sblines
= 0;
1675 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
1678 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
1679 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
1682 /* Check that the cursor positions are still valid. */
1683 if (term
->savecurs
.y
< 0)
1684 term
->savecurs
.y
= 0;
1685 if (term
->savecurs
.y
>= newrows
)
1686 term
->savecurs
.y
= newrows
- 1;
1687 if (term
->curs
.y
< 0)
1689 if (term
->curs
.y
>= newrows
)
1690 term
->curs
.y
= newrows
- 1;
1691 if (term
->curs
.x
>= newcols
)
1692 term
->curs
.x
= newcols
- 1;
1693 term
->alt_x
= term
->alt_y
= 0;
1694 term
->wrapnext
= term
->alt_wnext
= FALSE
;
1696 term
->rows
= newrows
;
1697 term
->cols
= newcols
;
1698 term
->savelines
= newsavelines
;
1700 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
1704 if (term
->resize_fn
)
1705 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
1709 * Hand a function and context pointer to the terminal which it can
1710 * use to notify a back end of resizes.
1712 void term_provide_resize_fn(Terminal
*term
,
1713 void (*resize_fn
)(void *, int, int),
1716 term
->resize_fn
= resize_fn
;
1717 term
->resize_ctx
= resize_ctx
;
1718 if (term
->cols
> 0 && term
->rows
> 0)
1719 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
1722 /* Find the bottom line on the screen that has any content.
1723 * If only the top line has content, returns 0.
1724 * If no lines have content, return -1.
1726 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
1729 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
1730 termline
*line
= index234(screen
, i
);
1732 for (j
= 0; j
< line
->cols
; j
++)
1733 if (!termchars_equal(&line
->chars
[j
], &term
->erase_char
))
1735 if (j
!= line
->cols
) break;
1741 * Swap screens. If `reset' is TRUE and we have been asked to
1742 * switch to the alternate screen, we must bring most of its
1743 * configuration from the main screen and erase the contents of the
1744 * alternate screen completely. (This is even true if we're already
1745 * on it! Blame xterm.)
1747 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
1753 reset
= FALSE
; /* do no weird resetting if which==0 */
1755 if (which
!= term
->alt_which
) {
1756 term
->alt_which
= which
;
1758 ttr
= term
->alt_screen
;
1759 term
->alt_screen
= term
->screen
;
1761 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
1763 if (!reset
&& !keep_cur_pos
)
1764 term
->curs
.x
= term
->alt_x
;
1767 if (!reset
&& !keep_cur_pos
)
1768 term
->curs
.y
= term
->alt_y
;
1771 if (!reset
) term
->marg_t
= term
->alt_t
;
1774 if (!reset
) term
->marg_b
= term
->alt_b
;
1777 if (!reset
) term
->dec_om
= term
->alt_om
;
1780 if (!reset
) term
->wrap
= term
->alt_wrap
;
1783 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
1784 term
->alt_wnext
= t
;
1786 if (!reset
) term
->insert
= term
->alt_ins
;
1789 if (!reset
) term
->cset
= term
->alt_cset
;
1792 if (!reset
) term
->utf
= term
->alt_utf
;
1795 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
1796 term
->alt_sco_acs
= t
;
1799 if (reset
&& term
->screen
) {
1801 * Yes, this _is_ supposed to honour background-colour-erase.
1803 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1808 * Update the scroll bar.
1810 static void update_sbar(Terminal
*term
)
1812 int nscroll
= sblines(term
);
1813 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
1814 nscroll
+ term
->disptop
, term
->rows
);
1818 * Check whether the region bounded by the two pointers intersects
1819 * the scroll region, and de-select the on-screen selection if so.
1821 static void check_selection(Terminal
*term
, pos from
, pos to
)
1823 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
1828 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
1829 * for backward.) `sb' is TRUE if the scrolling is permitted to
1830 * affect the scrollback buffer.
1832 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
1835 int i
, seltop
, olddisptop
, shift
;
1837 if (topline
!= 0 || term
->alt_which
!= 0)
1840 olddisptop
= term
->disptop
;
1844 line
= delpos234(term
->screen
, botline
);
1845 resizeline(term
, line
, term
->cols
);
1846 for (i
= 0; i
< term
->cols
; i
++)
1847 copy_termchar(line
, i
, &term
->erase_char
);
1848 line
->lattr
= LATTR_NORM
;
1849 addpos234(term
->screen
, line
, topline
);
1851 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
1853 if (term
->selstart
.y
> botline
) {
1854 term
->selstart
.y
= botline
+ 1;
1855 term
->selstart
.x
= 0;
1858 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
1860 if (term
->selend
.y
> botline
) {
1861 term
->selend
.y
= botline
+ 1;
1870 line
= delpos234(term
->screen
, topline
);
1871 #ifdef TERM_CC_DIAGS
1874 if (sb
&& term
->savelines
> 0) {
1875 int sblen
= count234(term
->scrollback
);
1877 * We must add this line to the scrollback. We'll
1878 * remove a line from the top of the scrollback if
1879 * the scrollback is full.
1881 if (sblen
== term
->savelines
) {
1882 unsigned char *cline
;
1885 cline
= delpos234(term
->scrollback
, 0);
1888 term
->tempsblines
+= 1;
1890 addpos234(term
->scrollback
, compressline(line
), sblen
);
1892 /* now `line' itself can be reused as the bottom line */
1895 * If the user is currently looking at part of the
1896 * scrollback, and they haven't enabled any options
1897 * that are going to reset the scrollback as a
1898 * result of this movement, then the chances are
1899 * they'd like to keep looking at the same line. So
1900 * we move their viewpoint at the same rate as the
1901 * scroll, at least until their viewpoint hits the
1902 * top end of the scrollback buffer, at which point
1903 * we don't have the choice any more.
1905 * Thanks to Jan Holmen Holsten for the idea and
1906 * initial implementation.
1908 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
1911 resizeline(term
, line
, term
->cols
);
1912 for (i
= 0; i
< term
->cols
; i
++)
1913 copy_termchar(line
, i
, &term
->erase_char
);
1914 line
->lattr
= LATTR_NORM
;
1915 addpos234(term
->screen
, line
, botline
);
1918 * If the selection endpoints move into the scrollback,
1919 * we keep them moving until they hit the top. However,
1920 * of course, if the line _hasn't_ moved into the
1921 * scrollback then we don't do this, and cut them off
1922 * at the top of the scroll region.
1924 * This applies to selstart and selend (for an existing
1925 * selection), and also selanchor (for one being
1926 * selected as we speak).
1928 seltop
= sb ?
-term
->savelines
: topline
;
1930 if (term
->selstate
!= NO_SELECTION
) {
1931 if (term
->selstart
.y
>= seltop
&&
1932 term
->selstart
.y
<= botline
) {
1934 if (term
->selstart
.y
< seltop
) {
1935 term
->selstart
.y
= seltop
;
1936 term
->selstart
.x
= 0;
1939 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
1941 if (term
->selend
.y
< seltop
) {
1942 term
->selend
.y
= seltop
;
1946 if (term
->selanchor
.y
>= seltop
&&
1947 term
->selanchor
.y
<= botline
) {
1948 term
->selanchor
.y
--;
1949 if (term
->selanchor
.y
< seltop
) {
1950 term
->selanchor
.y
= seltop
;
1951 term
->selanchor
.x
= 0;
1959 #ifdef OPTIMISE_SCROLL
1960 shift
+= term
->disptop
- olddisptop
;
1961 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
1962 scroll_display(term
, topline
, botline
, shift
);
1963 #endif /* OPTIMISE_SCROLL */
1966 #ifdef OPTIMISE_SCROLL
1968 * Add a scroll of a region on the screen into the pending scroll list.
1969 * `lines' is +ve for scrolling forward, -ve for backward.
1971 * If the scroll is on the same area as the last scroll in the list,
1974 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
1976 struct scrollregion
*newscroll
;
1977 if (term
->scrolltail
&&
1978 term
->scrolltail
->topline
== topline
&&
1979 term
->scrolltail
->botline
== botline
) {
1980 term
->scrolltail
->lines
+= lines
;
1982 newscroll
= snew(struct scrollregion
);
1983 newscroll
->topline
= topline
;
1984 newscroll
->botline
= botline
;
1985 newscroll
->lines
= lines
;
1986 newscroll
->next
= NULL
;
1988 if (!term
->scrollhead
)
1989 term
->scrollhead
= newscroll
;
1991 term
->scrolltail
->next
= newscroll
;
1992 term
->scrolltail
= newscroll
;
1997 * Scroll the physical display, and our conception of it in disptext.
1999 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
2001 int distance
, nlines
, i
, j
;
2003 distance
= lines
> 0 ? lines
: -lines
;
2004 nlines
= botline
- topline
+ 1 - distance
;
2006 for (i
= 0; i
< nlines
; i
++)
2007 for (j
= 0; j
< term
->cols
; j
++)
2008 copy_termchar(term
->disptext
[i
], j
,
2009 term
->disptext
[i
+distance
]->chars
+j
);
2010 if (term
->dispcursy
>= 0 &&
2011 term
->dispcursy
>= topline
+ distance
&&
2012 term
->dispcursy
< topline
+ distance
+ nlines
)
2013 term
->dispcursy
-= distance
;
2014 for (i
= 0; i
< distance
; i
++)
2015 for (j
= 0; j
< term
->cols
; j
++)
2016 term
->disptext
[nlines
+i
]->chars
[j
].attr
|= ATTR_INVALID
;
2018 for (i
= nlines
; i
-- ;)
2019 for (j
= 0; j
< term
->cols
; j
++)
2020 copy_termchar(term
->disptext
[i
+distance
], j
,
2021 term
->disptext
[i
]->chars
+j
);
2022 if (term
->dispcursy
>= 0 &&
2023 term
->dispcursy
>= topline
&&
2024 term
->dispcursy
< topline
+ nlines
)
2025 term
->dispcursy
+= distance
;
2026 for (i
= 0; i
< distance
; i
++)
2027 for (j
= 0; j
< term
->cols
; j
++)
2028 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
2030 save_scroll(term
, topline
, botline
, lines
);
2032 #endif /* OPTIMISE_SCROLL */
2035 * Move the cursor to a given position, clipping at boundaries. We
2036 * may or may not want to clip at the scroll margin: marg_clip is 0
2037 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
2038 * even _being_ outside the margins.
2040 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
2044 if (x
>= term
->cols
)
2047 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
2050 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
2056 if (y
>= term
->rows
)
2060 term
->wrapnext
= FALSE
;
2064 * Save or restore the cursor and SGR mode.
2066 static void save_cursor(Terminal
*term
, int save
)
2069 term
->savecurs
= term
->curs
;
2070 term
->save_attr
= term
->curr_attr
;
2071 term
->save_cset
= term
->cset
;
2072 term
->save_utf
= term
->utf
;
2073 term
->save_wnext
= term
->wrapnext
;
2074 term
->save_csattr
= term
->cset_attr
[term
->cset
];
2075 term
->save_sco_acs
= term
->sco_acs
;
2077 term
->curs
= term
->savecurs
;
2078 /* Make sure the window hasn't shrunk since the save */
2079 if (term
->curs
.x
>= term
->cols
)
2080 term
->curs
.x
= term
->cols
- 1;
2081 if (term
->curs
.y
>= term
->rows
)
2082 term
->curs
.y
= term
->rows
- 1;
2084 term
->curr_attr
= term
->save_attr
;
2085 term
->cset
= term
->save_cset
;
2086 term
->utf
= term
->save_utf
;
2087 term
->wrapnext
= term
->save_wnext
;
2089 * wrapnext might reset to False if the x position is no
2090 * longer at the rightmost edge.
2092 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
2093 term
->wrapnext
= FALSE
;
2094 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
2095 term
->sco_acs
= term
->save_sco_acs
;
2096 set_erase_char(term
);
2101 * This function is called before doing _anything_ which affects
2102 * only part of a line of text. It is used to mark the boundary
2103 * between two character positions, and it indicates that some sort
2104 * of effect is going to happen on only one side of that boundary.
2106 * The effect of this function is to check whether a CJK
2107 * double-width character is straddling the boundary, and to remove
2108 * it and replace it with two spaces if so. (Of course, one or
2109 * other of those spaces is then likely to be replaced with
2110 * something else again, as a result of whatever happens next.)
2112 * Also, if the boundary is at the right-hand _edge_ of the screen,
2113 * it implies something deliberate is being done to the rightmost
2114 * column position; hence we must clear LATTR_WRAPPED2.
2116 * The input to the function is the coordinates of the _second_
2117 * character of the pair.
2119 static void check_boundary(Terminal
*term
, int x
, int y
)
2123 /* Validate input coordinates, just in case. */
2124 if (x
== 0 || x
> term
->cols
)
2127 ldata
= scrlineptr(y
);
2128 if (x
== term
->cols
) {
2129 ldata
->lattr
&= ~LATTR_WRAPPED2
;
2131 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
2132 clear_cc(ldata
, x
-1);
2134 ldata
->chars
[x
-1].chr
= ' ' | CSET_ASCII
;
2135 ldata
->chars
[x
] = ldata
->chars
[x
-1];
2141 * Erase a large portion of the screen: the whole screen, or the
2142 * whole line, or parts thereof.
2144 static void erase_lots(Terminal
*term
,
2145 int line_only
, int from_begin
, int to_end
)
2149 int erasing_lines_from_top
= 0;
2152 start
.y
= term
->curs
.y
;
2154 end
.y
= term
->curs
.y
+ 1;
2156 erase_lattr
= FALSE
;
2171 if (!from_begin
|| !to_end
)
2172 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2173 check_selection(term
, start
, end
);
2175 /* Clear screen also forces a full window redraw, just in case. */
2176 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
2177 term_invalidate(term
);
2179 /* Lines scrolled away shouldn't be brought back on if the terminal
2181 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
2182 erasing_lines_from_top
= 1;
2184 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
2185 /* If it's a whole number of lines, starting at the top, and
2186 * we're fully erasing them, erase by scrolling and keep the
2187 * lines in the scrollback. */
2188 int scrolllines
= end
.y
;
2189 if (end
.y
== term
->rows
) {
2190 /* Shrink until we find a non-empty row.*/
2191 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
2193 if (scrolllines
> 0)
2194 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
2196 termline
*ldata
= scrlineptr(start
.y
);
2197 while (poslt(start
, end
)) {
2198 if (start
.x
== term
->cols
) {
2200 ldata
->lattr
&= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
2202 ldata
->lattr
= LATTR_NORM
;
2204 copy_termchar(ldata
, start
.x
, &term
->erase_char
);
2206 if (incpos(start
) && start
.y
< term
->rows
) {
2207 ldata
= scrlineptr(start
.y
);
2212 /* After an erase of lines from the top of the screen, we shouldn't
2213 * bring the lines back again if the terminal enlarges (since the user or
2214 * application has explictly thrown them away). */
2215 if (erasing_lines_from_top
&& !(term
->alt_which
))
2216 term
->tempsblines
= 0;
2220 * Insert or delete characters within the current line. n is +ve if
2221 * insertion is desired, and -ve for deletion.
2223 static void insch(Terminal
*term
, int n
)
2225 int dir
= (n
< 0 ?
-1 : +1);
2230 n
= (n
< 0 ?
-n
: n
);
2231 if (n
> term
->cols
- term
->curs
.x
)
2232 n
= term
->cols
- term
->curs
.x
;
2233 m
= term
->cols
- term
->curs
.x
- n
;
2234 cursplus
.y
= term
->curs
.y
;
2235 cursplus
.x
= term
->curs
.x
+ n
;
2236 check_selection(term
, term
->curs
, cursplus
);
2237 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2239 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
2240 ldata
= scrlineptr(term
->curs
.y
);
2242 for (j
= 0; j
< m
; j
++)
2243 move_termchar(ldata
,
2244 ldata
->chars
+ term
->curs
.x
+ j
,
2245 ldata
->chars
+ term
->curs
.x
+ j
+ n
);
2247 copy_termchar(ldata
, term
->curs
.x
+ m
++, &term
->erase_char
);
2250 move_termchar(ldata
,
2251 ldata
->chars
+ term
->curs
.x
+ j
+ n
,
2252 ldata
->chars
+ term
->curs
.x
+ j
);
2254 copy_termchar(ldata
, term
->curs
.x
+ n
, &term
->erase_char
);
2259 * Toggle terminal mode `mode' to state `state'. (`query' indicates
2260 * whether the mode is a DEC private one or a normal one.)
2262 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
2266 case 1: /* DECCKM: application cursor keys */
2267 term
->app_cursor_keys
= state
;
2269 case 2: /* DECANM: VT52 mode */
2270 term
->vt52_mode
= !state
;
2271 if (term
->vt52_mode
) {
2272 term
->blink_is_real
= FALSE
;
2273 term
->vt52_bold
= FALSE
;
2275 term
->blink_is_real
= term
->cfg
.blinktext
;
2277 term_schedule_tblink(term
);
2279 case 3: /* DECCOLM: 80/132 columns */
2281 if (!term
->cfg
.no_remote_resize
)
2282 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
2283 term
->reset_132
= state
;
2284 term
->alt_t
= term
->marg_t
= 0;
2285 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
2286 move(term
, 0, 0, 0);
2287 erase_lots(term
, FALSE
, TRUE
, TRUE
);
2289 case 5: /* DECSCNM: reverse video */
2291 * Toggle reverse video. If we receive an OFF within the
2292 * visual bell timeout period after an ON, we trigger an
2293 * effective visual bell, so that ESC[?5hESC[?5l will
2294 * always be an actually _visible_ visual bell.
2296 if (term
->rvideo
&& !state
) {
2297 /* This is an OFF, so set up a vbell */
2298 term_schedule_vbell(term
, TRUE
, term
->rvbell_startpoint
);
2299 } else if (!term
->rvideo
&& state
) {
2300 /* This is an ON, so we notice the time and save it. */
2301 term
->rvbell_startpoint
= GETTICKCOUNT();
2303 term
->rvideo
= state
;
2304 seen_disp_event(term
);
2306 case 6: /* DECOM: DEC origin mode */
2307 term
->dec_om
= state
;
2309 case 7: /* DECAWM: auto wrap */
2312 case 8: /* DECARM: auto key repeat */
2313 term
->repeat_off
= !state
;
2315 case 10: /* DECEDM: set local edit mode */
2316 term
->term_editing
= state
;
2317 if (term
->ldisc
) /* cause ldisc to notice changes */
2318 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2320 case 25: /* DECTCEM: enable/disable cursor */
2321 compatibility2(OTHER
, VT220
);
2322 term
->cursor_on
= state
;
2323 seen_disp_event(term
);
2325 case 47: /* alternate screen */
2326 compatibility(OTHER
);
2328 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
2331 case 1000: /* xterm mouse 1 */
2332 term
->xterm_mouse
= state ?
1 : 0;
2333 set_raw_mouse_mode(term
->frontend
, state
);
2335 case 1002: /* xterm mouse 2 */
2336 term
->xterm_mouse
= state ?
2 : 0;
2337 set_raw_mouse_mode(term
->frontend
, state
);
2339 case 1047: /* alternate screen */
2340 compatibility(OTHER
);
2342 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
2345 case 1048: /* save/restore cursor */
2346 if (!term
->cfg
.no_alt_screen
)
2347 save_cursor(term
, state
);
2348 if (!state
) seen_disp_event(term
);
2350 case 1049: /* cursor & alternate screen */
2351 if (state
&& !term
->cfg
.no_alt_screen
)
2352 save_cursor(term
, state
);
2353 if (!state
) seen_disp_event(term
);
2354 compatibility(OTHER
);
2356 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
2357 if (!state
&& !term
->cfg
.no_alt_screen
)
2358 save_cursor(term
, state
);
2363 case 4: /* IRM: set insert mode */
2364 compatibility(VT102
);
2365 term
->insert
= state
;
2367 case 12: /* SRM: set echo mode */
2368 term
->term_echoing
= !state
;
2369 if (term
->ldisc
) /* cause ldisc to notice changes */
2370 ldisc_send(term
->ldisc
, NULL
, 0, 0);
2372 case 20: /* LNM: Return sends ... */
2373 term
->cr_lf_return
= state
;
2375 case 34: /* WYULCURM: Make cursor BIG */
2376 compatibility2(OTHER
, VT220
);
2377 term
->big_cursor
= !state
;
2382 * Process an OSC sequence: set window title or icon name.
2384 static void do_osc(Terminal
*term
)
2387 while (term
->osc_strlen
--)
2388 term
->wordness
[(unsigned char)
2389 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
2391 term
->osc_string
[term
->osc_strlen
] = '\0';
2392 switch (term
->esc_args
[0]) {
2395 if (!term
->cfg
.no_remote_wintitle
)
2396 set_icon(term
->frontend
, term
->osc_string
);
2397 if (term
->esc_args
[0] == 1)
2399 /* fall through: parameter 0 means set both */
2402 if (!term
->cfg
.no_remote_wintitle
)
2403 set_title(term
->frontend
, term
->osc_string
);
2410 * ANSI printing routines.
2412 static void term_print_setup(Terminal
*term
)
2414 bufchain_clear(&term
->printer_buf
);
2415 term
->print_job
= printer_start_job(term
->cfg
.printer
);
2417 static void term_print_flush(Terminal
*term
)
2422 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
2423 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2426 printer_job_data(term
->print_job
, data
, len
);
2427 bufchain_consume(&term
->printer_buf
, len
);
2430 static void term_print_finish(Terminal
*term
)
2436 if (!term
->printing
&& !term
->only_printing
)
2437 return; /* we need do nothing */
2439 term_print_flush(term
);
2440 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
2441 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
2443 if (c
== '\033' || c
== '\233') {
2444 bufchain_consume(&term
->printer_buf
, size
);
2447 printer_job_data(term
->print_job
, &c
, 1);
2448 bufchain_consume(&term
->printer_buf
, 1);
2451 printer_finish_job(term
->print_job
);
2452 term
->print_job
= NULL
;
2453 term
->printing
= term
->only_printing
= FALSE
;
2457 * Remove everything currently in `inbuf' and stick it up on the
2458 * in-memory display. There's a big state machine in here to
2459 * process escape sequences...
2461 static void term_out(Terminal
*term
)
2465 unsigned char localbuf
[256], *chars
;
2470 chars
= NULL
; /* placate compiler warnings */
2471 while (nchars
> 0 || unget
!= -1 || bufchain_size(&term
->inbuf
) > 0) {
2475 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
2476 if (nchars
> sizeof(localbuf
))
2477 nchars
= sizeof(localbuf
);
2478 memcpy(localbuf
, ret
, nchars
);
2479 bufchain_consume(&term
->inbuf
, nchars
);
2481 assert(chars
!= NULL
);
2487 * Optionally log the session traffic to a file. Useful for
2488 * debugging and possibly also useful for actual logging.
2490 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
2491 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
2497 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
2498 * be able to display 8-bit characters, but I'll let that go 'cause
2503 * If we're printing, add the character to the printer
2506 if (term
->printing
) {
2507 bufchain_add(&term
->printer_buf
, &c
, 1);
2510 * If we're in print-only mode, we use a much simpler
2511 * state machine designed only to recognise the ESC[4i
2512 * termination sequence.
2514 if (term
->only_printing
) {
2516 term
->print_state
= 1;
2517 else if (c
== (unsigned char)'\233')
2518 term
->print_state
= 2;
2519 else if (c
== '[' && term
->print_state
== 1)
2520 term
->print_state
= 2;
2521 else if (c
== '4' && term
->print_state
== 2)
2522 term
->print_state
= 3;
2523 else if (c
== 'i' && term
->print_state
== 3)
2524 term
->print_state
= 4;
2526 term
->print_state
= 0;
2527 if (term
->print_state
== 4) {
2528 term_print_finish(term
);
2534 /* First see about all those translations. */
2535 if (term
->termstate
== TOPLEVEL
) {
2537 switch (term
->utf_state
) {
2540 /* UTF-8 must be stateless so we ignore iso2022. */
2541 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2542 c
= term
->ucsdata
->unitab_ctrl
[c
];
2543 else c
= ((unsigned char)c
) | CSET_ASCII
;
2545 } else if ((c
& 0xe0) == 0xc0) {
2546 term
->utf_size
= term
->utf_state
= 1;
2547 term
->utf_char
= (c
& 0x1f);
2548 } else if ((c
& 0xf0) == 0xe0) {
2549 term
->utf_size
= term
->utf_state
= 2;
2550 term
->utf_char
= (c
& 0x0f);
2551 } else if ((c
& 0xf8) == 0xf0) {
2552 term
->utf_size
= term
->utf_state
= 3;
2553 term
->utf_char
= (c
& 0x07);
2554 } else if ((c
& 0xfc) == 0xf8) {
2555 term
->utf_size
= term
->utf_state
= 4;
2556 term
->utf_char
= (c
& 0x03);
2557 } else if ((c
& 0xfe) == 0xfc) {
2558 term
->utf_size
= term
->utf_state
= 5;
2559 term
->utf_char
= (c
& 0x01);
2570 if ((c
& 0xC0) != 0x80) {
2573 term
->utf_state
= 0;
2576 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
2577 if (--term
->utf_state
)
2582 /* Is somebody trying to be evil! */
2584 (c
< 0x800 && term
->utf_size
>= 2) ||
2585 (c
< 0x10000 && term
->utf_size
>= 3) ||
2586 (c
< 0x200000 && term
->utf_size
>= 4) ||
2587 (c
< 0x4000000 && term
->utf_size
>= 5))
2590 /* Unicode line separator and paragraph separator are CR-LF */
2591 if (c
== 0x2028 || c
== 0x2029)
2594 /* High controls are probably a Baaad idea too. */
2598 /* The UTF-16 surrogates are not nice either. */
2599 /* The standard give the option of decoding these:
2600 * I don't want to! */
2601 if (c
>= 0xD800 && c
< 0xE000)
2604 /* ISO 10646 characters now limited to UTF-16 range. */
2608 /* This is currently a TagPhobic application.. */
2609 if (c
>= 0xE0000 && c
<= 0xE007F)
2612 /* U+FEFF is best seen as a null. */
2615 /* But U+FFFE is an error. */
2616 if (c
== 0xFFFE || c
== 0xFFFF)
2621 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
2622 else if(term
->sco_acs
&&
2623 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
2625 if (term
->sco_acs
== 2) c
|= 0x80;
2628 switch (term
->cset_attr
[term
->cset
]) {
2630 * Linedraw characters are different from 'ESC ( B'
2631 * only for a small range. For ones outside that
2632 * range, make sure we use the same font as well as
2633 * the same encoding.
2636 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2637 c
= term
->ucsdata
->unitab_ctrl
[c
];
2639 c
= ((unsigned char) c
) | CSET_LINEDRW
;
2643 /* If UK-ASCII, make the '#' a LineDraw Pound */
2645 c
= '}' | CSET_LINEDRW
;
2648 /*FALLTHROUGH*/ case CSET_ASCII
:
2649 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
2650 c
= term
->ucsdata
->unitab_ctrl
[c
];
2652 c
= ((unsigned char) c
) | CSET_ASCII
;
2655 if (c
>=' ') c
= ((unsigned char)c
) | CSET_SCOACS
;
2662 * How about C1 controls?
2663 * Explicitly ignore SCI (0x9a), which we don't translate to DECID.
2665 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
2666 !term
->vt52_mode
&& has_compat(VT220
)) {
2670 term
->termstate
= SEEN_ESC
;
2671 term
->esc_query
= FALSE
;
2672 c
= '@' + (c
& 0x1F);
2676 /* Or the GL control. */
2677 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
2678 if (term
->curs
.x
&& !term
->wrapnext
)
2680 term
->wrapnext
= FALSE
;
2681 /* destructive backspace might be disabled */
2682 if (!term
->cfg
.no_dbackspace
) {
2683 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2684 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2685 copy_termchar(scrlineptr(term
->curs
.y
),
2686 term
->curs
.x
, &term
->erase_char
);
2689 /* Or normal C0 controls. */
2690 if ((c
& ~0x1F) == 0 && term
->termstate
< DO_CTRLS
) {
2692 case '\005': /* ENQ: terminal type query */
2694 * Strictly speaking this is VT100 but a VT100 defaults to
2695 * no response. Other terminals respond at their option.
2697 * Don't put a CR in the default string as this tends to
2698 * upset some weird software.
2700 compatibility(ANSIMIN
);
2702 char abuf
[lenof(term
->cfg
.answerback
)], *s
, *d
;
2703 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
;) {
2705 char c
= ctrlparse(s
, &n
);
2713 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
2717 case '\007': /* BEL: Bell */
2719 struct beeptime
*newbeep
;
2720 unsigned long ticks
;
2722 ticks
= GETTICKCOUNT();
2724 if (!term
->beep_overloaded
) {
2725 newbeep
= snew(struct beeptime
);
2726 newbeep
->ticks
= ticks
;
2727 newbeep
->next
= NULL
;
2728 if (!term
->beephead
)
2729 term
->beephead
= newbeep
;
2731 term
->beeptail
->next
= newbeep
;
2732 term
->beeptail
= newbeep
;
2737 * Throw out any beeps that happened more than
2740 while (term
->beephead
&&
2741 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
2742 struct beeptime
*tmp
= term
->beephead
;
2743 term
->beephead
= tmp
->next
;
2745 if (!term
->beephead
)
2746 term
->beeptail
= NULL
;
2750 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
2751 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
2753 * If we're currently overloaded and the
2754 * last beep was more than s seconds ago,
2755 * leave overload mode.
2757 term
->beep_overloaded
= FALSE
;
2758 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
2759 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
2761 * Now, if we have n or more beeps
2762 * remaining in the queue, go into overload
2765 term
->beep_overloaded
= TRUE
;
2767 term
->lastbeep
= ticks
;
2770 * Perform an actual beep if we're not overloaded.
2772 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
2773 do_beep(term
->frontend
, term
->cfg
.beep
);
2775 if (term
->cfg
.beep
== BELL_VISUAL
) {
2776 term_schedule_vbell(term
, FALSE
, 0);
2779 seen_disp_event(term
);
2782 case '\b': /* BS: Back space */
2783 if (term
->curs
.x
== 0 &&
2784 (term
->curs
.y
== 0 || term
->wrap
== 0))
2786 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
2787 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
2788 else if (term
->wrapnext
)
2789 term
->wrapnext
= FALSE
;
2792 seen_disp_event(term
);
2794 case '\016': /* LS1: Locking-shift one */
2795 compatibility(VT100
);
2798 case '\017': /* LS0: Locking-shift zero */
2799 compatibility(VT100
);
2802 case '\033': /* ESC: Escape */
2803 if (term
->vt52_mode
)
2804 term
->termstate
= VT52_ESC
;
2806 compatibility(ANSIMIN
);
2807 term
->termstate
= SEEN_ESC
;
2808 term
->esc_query
= FALSE
;
2811 case '\015': /* CR: Carriage return */
2813 term
->wrapnext
= FALSE
;
2814 seen_disp_event(term
);
2815 term
->paste_hold
= 0;
2817 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2819 case '\014': /* FF: Form feed */
2820 if (has_compat(SCOANSI
)) {
2821 move(term
, 0, 0, 0);
2822 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2824 term
->wrapnext
= FALSE
;
2825 seen_disp_event(term
);
2828 case '\013': /* VT: Line tabulation */
2829 compatibility(VT100
);
2830 case '\012': /* LF: Line feed */
2831 if (term
->curs
.y
== term
->marg_b
)
2832 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2833 else if (term
->curs
.y
< term
->rows
- 1)
2835 if (term
->cfg
.lfhascr
)
2837 term
->wrapnext
= FALSE
;
2838 seen_disp_event(term
);
2839 term
->paste_hold
= 0;
2841 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
2843 case '\t': /* HT: Character tabulation */
2845 pos old_curs
= term
->curs
;
2846 termline
*ldata
= scrlineptr(term
->curs
.y
);
2850 } while (term
->curs
.x
< term
->cols
- 1 &&
2851 !term
->tabs
[term
->curs
.x
]);
2853 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
) {
2854 if (term
->curs
.x
>= term
->cols
/ 2)
2855 term
->curs
.x
= term
->cols
/ 2 - 1;
2857 if (term
->curs
.x
>= term
->cols
)
2858 term
->curs
.x
= term
->cols
- 1;
2861 check_selection(term
, old_curs
, term
->curs
);
2863 seen_disp_event(term
);
2867 switch (term
->termstate
) {
2869 /* Only graphic characters get this far;
2870 * ctrls are stripped above */
2872 termline
*cline
= scrlineptr(term
->curs
.y
);
2877 width
= (term
->cfg
.cjk_ambig_wide ?
2878 mk_wcwidth_cjk((wchar_t) c
) :
2879 mk_wcwidth((wchar_t) c
));
2881 if (term
->wrapnext
&& term
->wrap
&& width
> 0) {
2882 cline
->lattr
|= LATTR_WRAPPED
;
2883 if (term
->curs
.y
== term
->marg_b
)
2884 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2885 else if (term
->curs
.y
< term
->rows
- 1)
2888 term
->wrapnext
= FALSE
;
2889 cline
= scrlineptr(term
->curs
.y
);
2891 if (term
->insert
&& width
> 0)
2893 if (term
->selstate
!= NO_SELECTION
) {
2894 pos cursplus
= term
->curs
;
2896 check_selection(term
, term
->curs
, cursplus
);
2898 if (((c
& CSET_MASK
) == CSET_ASCII
||
2899 (c
& CSET_MASK
) == 0) &&
2901 logtraffic(term
->logctx
, (unsigned char) c
,
2907 * If we're about to display a double-width
2908 * character starting in the rightmost
2909 * column, then we do something special
2910 * instead. We must print a space in the
2911 * last column of the screen, then wrap;
2912 * and we also set LATTR_WRAPPED2 which
2913 * instructs subsequent cut-and-pasting not
2914 * only to splice this line to the one
2915 * after it, but to ignore the space in the
2916 * last character position as well.
2917 * (Because what was actually output to the
2918 * terminal was presumably just a sequence
2919 * of CJK characters, and we don't want a
2920 * space to be pasted in the middle of
2921 * those just because they had the
2922 * misfortune to start in the wrong parity
2923 * column. xterm concurs.)
2925 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2926 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2927 if (term
->curs
.x
== term
->cols
-1) {
2928 copy_termchar(cline
, term
->curs
.x
,
2930 cline
->lattr
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
2931 if (term
->curs
.y
== term
->marg_b
)
2932 scroll(term
, term
->marg_t
, term
->marg_b
,
2934 else if (term
->curs
.y
< term
->rows
- 1)
2937 cline
= scrlineptr(term
->curs
.y
);
2938 /* Now we must check_boundary again, of course. */
2939 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2940 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
2944 clear_cc(cline
, term
->curs
.x
);
2945 cline
->chars
[term
->curs
.x
].chr
= c
;
2946 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2951 clear_cc(cline
, term
->curs
.x
);
2952 cline
->chars
[term
->curs
.x
].chr
= UCSWIDE
;
2953 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2957 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2958 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
2961 clear_cc(cline
, term
->curs
.x
);
2962 cline
->chars
[term
->curs
.x
].chr
= c
;
2963 cline
->chars
[term
->curs
.x
].attr
= term
->curr_attr
;
2967 if (term
->curs
.x
> 0) {
2968 int x
= term
->curs
.x
- 1;
2970 /* If we're in wrapnext state, the character
2971 * to combine with is _here_, not to our left. */
2976 * If the previous character is
2977 * UCSWIDE, back up another one.
2979 if (cline
->chars
[x
].chr
== UCSWIDE
) {
2984 add_cc(cline
, x
, c
);
2985 seen_disp_event(term
);
2992 if (term
->curs
.x
== term
->cols
) {
2994 term
->wrapnext
= TRUE
;
2995 if (term
->wrap
&& term
->vt52_mode
) {
2996 cline
->lattr
|= LATTR_WRAPPED
;
2997 if (term
->curs
.y
== term
->marg_b
)
2998 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
2999 else if (term
->curs
.y
< term
->rows
- 1)
3002 term
->wrapnext
= FALSE
;
3005 seen_disp_event(term
);
3011 * This state is virtually identical to SEEN_ESC, with the
3012 * exception that we have an OSC sequence in the pipeline,
3013 * and _if_ we see a backslash, we process it.
3017 term
->termstate
= TOPLEVEL
;
3020 /* else fall through */
3022 if (c
>= ' ' && c
<= '/') {
3023 if (term
->esc_query
)
3024 term
->esc_query
= -1;
3026 term
->esc_query
= c
;
3029 term
->termstate
= TOPLEVEL
;
3030 switch (ANSI(c
, term
->esc_query
)) {
3031 case '[': /* enter CSI mode */
3032 term
->termstate
= SEEN_CSI
;
3033 term
->esc_nargs
= 1;
3034 term
->esc_args
[0] = ARG_DEFAULT
;
3035 term
->esc_query
= FALSE
;
3037 case ']': /* OSC: xterm escape sequences */
3038 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
3039 compatibility(OTHER
);
3040 term
->termstate
= SEEN_OSC
;
3041 term
->esc_args
[0] = 0;
3043 case '7': /* DECSC: save cursor */
3044 compatibility(VT100
);
3045 save_cursor(term
, TRUE
);
3047 case '8': /* DECRC: restore cursor */
3048 compatibility(VT100
);
3049 save_cursor(term
, FALSE
);
3050 seen_disp_event(term
);
3052 case '=': /* DECKPAM: Keypad application mode */
3053 compatibility(VT100
);
3054 term
->app_keypad_keys
= TRUE
;
3056 case '>': /* DECKPNM: Keypad numeric mode */
3057 compatibility(VT100
);
3058 term
->app_keypad_keys
= FALSE
;
3060 case 'D': /* IND: exactly equivalent to LF */
3061 compatibility(VT100
);
3062 if (term
->curs
.y
== term
->marg_b
)
3063 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3064 else if (term
->curs
.y
< term
->rows
- 1)
3066 term
->wrapnext
= FALSE
;
3067 seen_disp_event(term
);
3069 case 'E': /* NEL: exactly equivalent to CR-LF */
3070 compatibility(VT100
);
3072 if (term
->curs
.y
== term
->marg_b
)
3073 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
3074 else if (term
->curs
.y
< term
->rows
- 1)
3076 term
->wrapnext
= FALSE
;
3077 seen_disp_event(term
);
3079 case 'M': /* RI: reverse index - backwards LF */
3080 compatibility(VT100
);
3081 if (term
->curs
.y
== term
->marg_t
)
3082 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
3083 else if (term
->curs
.y
> 0)
3085 term
->wrapnext
= FALSE
;
3086 seen_disp_event(term
);
3088 case 'Z': /* DECID: terminal type query */
3089 compatibility(VT100
);
3091 ldisc_send(term
->ldisc
, term
->id_string
,
3092 strlen(term
->id_string
), 0);
3094 case 'c': /* RIS: restore power-on settings */
3095 compatibility(VT100
);
3096 power_on(term
, TRUE
);
3097 if (term
->ldisc
) /* cause ldisc to notice changes */
3098 ldisc_send(term
->ldisc
, NULL
, 0, 0);
3099 if (term
->reset_132
) {
3100 if (!term
->cfg
.no_remote_resize
)
3101 request_resize(term
->frontend
, 80, term
->rows
);
3102 term
->reset_132
= 0;
3105 seen_disp_event(term
);
3107 case 'H': /* HTS: set a tab */
3108 compatibility(VT100
);
3109 term
->tabs
[term
->curs
.x
] = TRUE
;
3112 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
3113 compatibility(VT100
);
3119 for (i
= 0; i
< term
->rows
; i
++) {
3120 ldata
= scrlineptr(i
);
3121 for (j
= 0; j
< term
->cols
; j
++) {
3122 copy_termchar(ldata
, j
,
3123 &term
->basic_erase_char
);
3124 ldata
->chars
[j
].chr
= 'E';
3126 ldata
->lattr
= LATTR_NORM
;
3129 seen_disp_event(term
);
3130 scrtop
.x
= scrtop
.y
= 0;
3132 scrbot
.y
= term
->rows
;
3133 check_selection(term
, scrtop
, scrbot
);
3137 case ANSI('3', '#'):
3138 case ANSI('4', '#'):
3139 case ANSI('5', '#'):
3140 case ANSI('6', '#'):
3141 compatibility(VT100
);
3145 switch (ANSI(c
, term
->esc_query
)) {
3146 case ANSI('3', '#'): /* DECDHL: 2*height, top */
3149 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
3152 case ANSI('5', '#'): /* DECSWL: normal */
3153 nlattr
= LATTR_NORM
;
3155 default: /* case ANSI('6', '#'): DECDWL: 2*width */
3156 nlattr
= LATTR_WIDE
;
3159 scrlineptr(term
->curs
.y
)->lattr
= nlattr
;
3162 /* GZD4: G0 designate 94-set */
3163 case ANSI('A', '('):
3164 compatibility(VT100
);
3165 if (!term
->cfg
.no_remote_charset
)
3166 term
->cset_attr
[0] = CSET_GBCHR
;
3168 case ANSI('B', '('):
3169 compatibility(VT100
);
3170 if (!term
->cfg
.no_remote_charset
)
3171 term
->cset_attr
[0] = CSET_ASCII
;
3173 case ANSI('0', '('):
3174 compatibility(VT100
);
3175 if (!term
->cfg
.no_remote_charset
)
3176 term
->cset_attr
[0] = CSET_LINEDRW
;
3178 case ANSI('U', '('):
3179 compatibility(OTHER
);
3180 if (!term
->cfg
.no_remote_charset
)
3181 term
->cset_attr
[0] = CSET_SCOACS
;
3183 /* G1D4: G1-designate 94-set */
3184 case ANSI('A', ')'):
3185 compatibility(VT100
);
3186 if (!term
->cfg
.no_remote_charset
)
3187 term
->cset_attr
[1] = CSET_GBCHR
;
3189 case ANSI('B', ')'):
3190 compatibility(VT100
);
3191 if (!term
->cfg
.no_remote_charset
)
3192 term
->cset_attr
[1] = CSET_ASCII
;
3194 case ANSI('0', ')'):
3195 compatibility(VT100
);
3196 if (!term
->cfg
.no_remote_charset
)
3197 term
->cset_attr
[1] = CSET_LINEDRW
;
3199 case ANSI('U', ')'):
3200 compatibility(OTHER
);
3201 if (!term
->cfg
.no_remote_charset
)
3202 term
->cset_attr
[1] = CSET_SCOACS
;
3204 /* DOCS: Designate other coding system */
3205 case ANSI('8', '%'): /* Old Linux code */
3206 case ANSI('G', '%'):
3207 compatibility(OTHER
);
3208 if (!term
->cfg
.no_remote_charset
)
3211 case ANSI('@', '%'):
3212 compatibility(OTHER
);
3213 if (!term
->cfg
.no_remote_charset
)
3219 term
->termstate
= TOPLEVEL
; /* default */
3221 if (term
->esc_nargs
<= ARGS_MAX
) {
3222 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
3223 term
->esc_args
[term
->esc_nargs
- 1] = 0;
3224 term
->esc_args
[term
->esc_nargs
- 1] =
3225 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
3227 term
->termstate
= SEEN_CSI
;
3228 } else if (c
== ';') {
3229 if (++term
->esc_nargs
<= ARGS_MAX
)
3230 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
3231 term
->termstate
= SEEN_CSI
;
3232 } else if (c
< '@') {
3233 if (term
->esc_query
)
3234 term
->esc_query
= -1;
3236 term
->esc_query
= TRUE
;
3238 term
->esc_query
= c
;
3239 term
->termstate
= SEEN_CSI
;
3241 switch (ANSI(c
, term
->esc_query
)) {
3242 case 'A': /* CUU: move up N lines */
3243 move(term
, term
->curs
.x
,
3244 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3245 seen_disp_event(term
);
3247 case 'e': /* VPR: move down N lines */
3248 compatibility(ANSI
);
3250 case 'B': /* CUD: Cursor down */
3251 move(term
, term
->curs
.x
,
3252 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3253 seen_disp_event(term
);
3255 case ANSI('c', '>'): /* DA: report xterm version */
3256 compatibility(OTHER
);
3257 /* this reports xterm version 136 so that VIM can
3258 use the drag messages from the mouse reporting */
3260 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
3262 case 'a': /* HPR: move right N cols */
3263 compatibility(ANSI
);
3265 case 'C': /* CUF: Cursor right */
3266 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
3268 seen_disp_event(term
);
3270 case 'D': /* CUB: move left N cols */
3271 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
3273 seen_disp_event(term
);
3275 case 'E': /* CNL: move down N lines and CR */
3276 compatibility(ANSI
);
3278 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
3279 seen_disp_event(term
);
3281 case 'F': /* CPL: move up N lines and CR */
3282 compatibility(ANSI
);
3284 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
3285 seen_disp_event(term
);
3288 case '`': /* HPA: set horizontal posn */
3289 compatibility(ANSI
);
3290 move(term
, def(term
->esc_args
[0], 1) - 1,
3292 seen_disp_event(term
);
3294 case 'd': /* VPA: set vertical posn */
3295 compatibility(ANSI
);
3296 move(term
, term
->curs
.x
,
3297 ((term
->dec_om ? term
->marg_t
: 0) +
3298 def(term
->esc_args
[0], 1) - 1),
3299 (term
->dec_om ?
2 : 0));
3300 seen_disp_event(term
);
3303 case 'f': /* HVP: set horz and vert posns at once */
3304 if (term
->esc_nargs
< 2)
3305 term
->esc_args
[1] = ARG_DEFAULT
;
3306 move(term
, def(term
->esc_args
[1], 1) - 1,
3307 ((term
->dec_om ? term
->marg_t
: 0) +
3308 def(term
->esc_args
[0], 1) - 1),
3309 (term
->dec_om ?
2 : 0));
3310 seen_disp_event(term
);
3312 case 'J': /* ED: erase screen or parts of it */
3314 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3317 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
3320 seen_disp_event(term
);
3322 case 'K': /* EL: erase line or parts of it */
3324 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
3327 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
3329 seen_disp_event(term
);
3331 case 'L': /* IL: insert lines */
3332 compatibility(VT102
);
3333 if (term
->curs
.y
<= term
->marg_b
)
3334 scroll(term
, term
->curs
.y
, term
->marg_b
,
3335 -def(term
->esc_args
[0], 1), FALSE
);
3336 seen_disp_event(term
);
3338 case 'M': /* DL: delete lines */
3339 compatibility(VT102
);
3340 if (term
->curs
.y
<= term
->marg_b
)
3341 scroll(term
, term
->curs
.y
, term
->marg_b
,
3342 def(term
->esc_args
[0], 1),
3344 seen_disp_event(term
);
3346 case '@': /* ICH: insert chars */
3347 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
3348 compatibility(VT102
);
3349 insch(term
, def(term
->esc_args
[0], 1));
3350 seen_disp_event(term
);
3352 case 'P': /* DCH: delete chars */
3353 compatibility(VT102
);
3354 insch(term
, -def(term
->esc_args
[0], 1));
3355 seen_disp_event(term
);
3357 case 'c': /* DA: terminal type query */
3358 compatibility(VT100
);
3359 /* This is the response for a VT102 */
3361 ldisc_send(term
->ldisc
, term
->id_string
,
3362 strlen(term
->id_string
), 0);
3364 case 'n': /* DSR: cursor position query */
3366 if (term
->esc_args
[0] == 6) {
3368 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
3370 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
3371 } else if (term
->esc_args
[0] == 5) {
3372 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
3376 case 'h': /* SM: toggle modes to high */
3378 compatibility(VT100
);
3381 for (i
= 0; i
< term
->esc_nargs
; i
++)
3382 toggle_mode(term
, term
->esc_args
[i
],
3383 term
->esc_query
, TRUE
);
3386 case 'i': /* MC: Media copy */
3388 compatibility(VT100
);
3390 if (term
->esc_nargs
!= 1) break;
3391 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
3392 term
->printing
= TRUE
;
3393 term
->only_printing
= !term
->esc_query
;
3394 term
->print_state
= 0;
3395 term_print_setup(term
);
3396 } else if (term
->esc_args
[0] == 4 &&
3398 term_print_finish(term
);
3402 case 'l': /* RM: toggle modes to low */
3404 compatibility(VT100
);
3407 for (i
= 0; i
< term
->esc_nargs
; i
++)
3408 toggle_mode(term
, term
->esc_args
[i
],
3409 term
->esc_query
, FALSE
);
3412 case 'g': /* TBC: clear tabs */
3413 compatibility(VT100
);
3414 if (term
->esc_nargs
== 1) {
3415 if (term
->esc_args
[0] == 0) {
3416 term
->tabs
[term
->curs
.x
] = FALSE
;
3417 } else if (term
->esc_args
[0] == 3) {
3419 for (i
= 0; i
< term
->cols
; i
++)
3420 term
->tabs
[i
] = FALSE
;
3424 case 'r': /* DECSTBM: set scroll margins */
3425 compatibility(VT100
);
3426 if (term
->esc_nargs
<= 2) {
3428 top
= def(term
->esc_args
[0], 1) - 1;
3429 bot
= (term
->esc_nargs
<= 1
3430 || term
->esc_args
[1] == 0 ?
3432 def(term
->esc_args
[1], term
->rows
)) - 1;
3433 if (bot
>= term
->rows
)
3434 bot
= term
->rows
- 1;
3435 /* VTTEST Bug 9 - if region is less than 2 lines
3436 * don't change region.
3438 if (bot
- top
> 0) {
3443 * I used to think the cursor should be
3444 * placed at the top of the newly marginned
3445 * area. Apparently not: VMS TPU falls over
3448 * Well actually it should for
3451 term
->curs
.y
= (term
->dec_om ?
3453 seen_disp_event(term
);
3457 case 'm': /* SGR: set graphics rendition */
3460 * A VT100 without the AVO only had one
3461 * attribute, either underline or
3462 * reverse video depending on the
3463 * cursor type, this was selected by
3467 * This is sometimes DIM, eg on the
3470 * This is sometimes INVIS various ANSI.
3472 * This like 22 disables BOLD, DIM and INVIS
3474 * The ANSI colours appear on any
3475 * terminal that has colour (obviously)
3476 * but the interaction between sgr0 and
3477 * the colours varies but is usually
3478 * related to the background colour
3479 * erase item. The interaction between
3480 * colour attributes and the mono ones
3481 * is also very implementation
3484 * The 39 and 49 attributes are likely
3485 * to be unimplemented.
3488 for (i
= 0; i
< term
->esc_nargs
; i
++) {
3489 switch (def(term
->esc_args
[i
], 0)) {
3490 case 0: /* restore defaults */
3491 term
->curr_attr
= term
->default_attr
;
3493 case 1: /* enable bold */
3494 compatibility(VT100AVO
);
3495 term
->curr_attr
|= ATTR_BOLD
;
3497 case 21: /* (enable double underline) */
3498 compatibility(OTHER
);
3499 case 4: /* enable underline */
3500 compatibility(VT100AVO
);
3501 term
->curr_attr
|= ATTR_UNDER
;
3503 case 5: /* enable blink */
3504 compatibility(VT100AVO
);
3505 term
->curr_attr
|= ATTR_BLINK
;
3507 case 6: /* SCO light bkgrd */
3508 compatibility(SCOANSI
);
3509 term
->blink_is_real
= FALSE
;
3510 term
->curr_attr
|= ATTR_BLINK
;
3511 term_schedule_tblink(term
);
3513 case 7: /* enable reverse video */
3514 term
->curr_attr
|= ATTR_REVERSE
;
3516 case 10: /* SCO acs off */
3517 compatibility(SCOANSI
);
3518 if (term
->cfg
.no_remote_charset
) break;
3519 term
->sco_acs
= 0; break;
3520 case 11: /* SCO acs on */
3521 compatibility(SCOANSI
);
3522 if (term
->cfg
.no_remote_charset
) break;
3523 term
->sco_acs
= 1; break;
3524 case 12: /* SCO acs on, |0x80 */
3525 compatibility(SCOANSI
);
3526 if (term
->cfg
.no_remote_charset
) break;
3527 term
->sco_acs
= 2; break;
3528 case 22: /* disable bold */
3529 compatibility2(OTHER
, VT220
);
3530 term
->curr_attr
&= ~ATTR_BOLD
;
3532 case 24: /* disable underline */
3533 compatibility2(OTHER
, VT220
);
3534 term
->curr_attr
&= ~ATTR_UNDER
;
3536 case 25: /* disable blink */
3537 compatibility2(OTHER
, VT220
);
3538 term
->curr_attr
&= ~ATTR_BLINK
;
3540 case 27: /* disable reverse video */
3541 compatibility2(OTHER
, VT220
);
3542 term
->curr_attr
&= ~ATTR_REVERSE
;
3553 term
->curr_attr
&= ~ATTR_FGMASK
;
3555 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
3565 /* aixterm-style bright foreground */
3566 term
->curr_attr
&= ~ATTR_FGMASK
;
3568 ((term
->esc_args
[i
] - 90 + 8)
3571 case 39: /* default-foreground */
3572 term
->curr_attr
&= ~ATTR_FGMASK
;
3573 term
->curr_attr
|= ATTR_DEFFG
;
3584 term
->curr_attr
&= ~ATTR_BGMASK
;
3586 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
3596 /* aixterm-style bright background */
3597 term
->curr_attr
&= ~ATTR_BGMASK
;
3599 ((term
->esc_args
[i
] - 100 + 8)
3602 case 49: /* default-background */
3603 term
->curr_attr
&= ~ATTR_BGMASK
;
3604 term
->curr_attr
|= ATTR_DEFBG
;
3606 case 38: /* xterm 256-colour mode */
3607 if (i
+2 < term
->esc_nargs
&&
3608 term
->esc_args
[i
+1] == 5) {
3609 term
->curr_attr
&= ~ATTR_FGMASK
;
3611 ((term
->esc_args
[i
+2] & 0xFF)
3616 case 48: /* xterm 256-colour mode */
3617 if (i
+2 < term
->esc_nargs
&&
3618 term
->esc_args
[i
+1] == 5) {
3619 term
->curr_attr
&= ~ATTR_BGMASK
;
3621 ((term
->esc_args
[i
+2] & 0xFF)
3628 set_erase_char(term
);
3631 case 's': /* save cursor */
3632 save_cursor(term
, TRUE
);
3634 case 'u': /* restore cursor */
3635 save_cursor(term
, FALSE
);
3636 seen_disp_event(term
);
3638 case 't': /* DECSLPP: set page size - ie window height */
3640 * VT340/VT420 sequence DECSLPP, DEC only allows values
3641 * 24/25/36/48/72/144 other emulators (eg dtterm) use
3642 * illegal values (eg first arg 1..9) for window changing
3645 if (term
->esc_nargs
<= 1
3646 && (term
->esc_args
[0] < 1 ||
3647 term
->esc_args
[0] >= 24)) {
3648 compatibility(VT340TEXT
);
3649 if (!term
->cfg
.no_remote_resize
)
3650 request_resize(term
->frontend
, term
->cols
,
3651 def(term
->esc_args
[0], 24));
3653 } else if (term
->esc_nargs
>= 1 &&
3654 term
->esc_args
[0] >= 1 &&
3655 term
->esc_args
[0] < 24) {
3656 compatibility(OTHER
);
3658 switch (term
->esc_args
[0]) {
3662 set_iconic(term
->frontend
, FALSE
);
3665 set_iconic(term
->frontend
, TRUE
);
3668 if (term
->esc_nargs
>= 3) {
3669 if (!term
->cfg
.no_remote_resize
)
3670 move_window(term
->frontend
,
3671 def(term
->esc_args
[1], 0),
3672 def(term
->esc_args
[2], 0));
3676 /* We should resize the window to a given
3677 * size in pixels here, but currently our
3678 * resizing code isn't healthy enough to
3683 set_zorder(term
->frontend
, TRUE
);
3686 /* move to bottom */
3687 set_zorder(term
->frontend
, FALSE
);
3690 refresh_window(term
->frontend
);
3693 if (term
->esc_nargs
>= 3) {
3694 if (!term
->cfg
.no_remote_resize
)
3695 request_resize(term
->frontend
,
3696 def(term
->esc_args
[2], term
->cfg
.width
),
3697 def(term
->esc_args
[1], term
->cfg
.height
));
3701 if (term
->esc_nargs
>= 2)
3702 set_zoomed(term
->frontend
,
3708 ldisc_send(term
->ldisc
,
3709 is_iconic(term
->frontend
) ?
3710 "\033[1t" : "\033[2t", 4, 0);
3714 get_window_pos(term
->frontend
, &x
, &y
);
3715 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
3716 ldisc_send(term
->ldisc
, buf
, len
, 0);
3721 get_window_pixels(term
->frontend
, &x
, &y
);
3722 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
3723 ldisc_send(term
->ldisc
, buf
, len
, 0);
3728 len
= sprintf(buf
, "\033[8;%d;%dt",
3729 term
->rows
, term
->cols
);
3730 ldisc_send(term
->ldisc
, buf
, len
, 0);
3735 * Hmmm. Strictly speaking we
3736 * should return `the size of the
3737 * screen in characters', but
3738 * that's not easy: (a) window
3739 * furniture being what it is it's
3740 * hard to compute, and (b) in
3741 * resize-font mode maximising the
3742 * window wouldn't change the
3743 * number of characters. *shrug*. I
3744 * think we'll ignore it for the
3745 * moment and see if anyone
3746 * complains, and then ask them
3747 * what they would like it to do.
3752 !term
->cfg
.no_remote_qtitle
) {
3753 p
= get_window_title(term
->frontend
, TRUE
);
3755 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
3756 ldisc_send(term
->ldisc
, p
, len
, 0);
3757 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3762 !term
->cfg
.no_remote_qtitle
) {
3763 p
= get_window_title(term
->frontend
,FALSE
);
3765 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
3766 ldisc_send(term
->ldisc
, p
, len
, 0);
3767 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
3773 case 'S': /* SU: Scroll up */
3774 compatibility(SCOANSI
);
3775 scroll(term
, term
->marg_t
, term
->marg_b
,
3776 def(term
->esc_args
[0], 1), TRUE
);
3777 term
->wrapnext
= FALSE
;
3778 seen_disp_event(term
);
3780 case 'T': /* SD: Scroll down */
3781 compatibility(SCOANSI
);
3782 scroll(term
, term
->marg_t
, term
->marg_b
,
3783 -def(term
->esc_args
[0], 1), TRUE
);
3784 term
->wrapnext
= FALSE
;
3785 seen_disp_event(term
);
3787 case ANSI('|', '*'): /* DECSNLS */
3789 * Set number of lines on screen
3790 * VT420 uses VGA like hardware and can
3791 * support any size in reasonable range
3792 * (24..49 AIUI) with no default specified.
3794 compatibility(VT420
);
3795 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
3796 if (!term
->cfg
.no_remote_resize
)
3797 request_resize(term
->frontend
, term
->cols
,
3798 def(term
->esc_args
[0],
3803 case ANSI('|', '$'): /* DECSCPP */
3805 * Set number of columns per page
3806 * Docs imply range is only 80 or 132, but
3809 compatibility(VT340TEXT
);
3810 if (term
->esc_nargs
<= 1) {
3811 if (!term
->cfg
.no_remote_resize
)
3812 request_resize(term
->frontend
,
3813 def(term
->esc_args
[0],
3814 term
->cfg
.width
), term
->rows
);
3818 case 'X': /* ECH: write N spaces w/o moving cursor */
3819 /* XXX VTTEST says this is vt220, vt510 manual
3821 compatibility(ANSIMIN
);
3823 int n
= def(term
->esc_args
[0], 1);
3825 int p
= term
->curs
.x
;
3826 termline
*cline
= scrlineptr(term
->curs
.y
);
3828 if (n
> term
->cols
- term
->curs
.x
)
3829 n
= term
->cols
- term
->curs
.x
;
3830 cursplus
= term
->curs
;
3832 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
3833 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
3834 check_selection(term
, term
->curs
, cursplus
);
3836 copy_termchar(cline
, p
++,
3838 seen_disp_event(term
);
3841 case 'x': /* DECREQTPARM: report terminal characteristics */
3842 compatibility(VT100
);
3845 int i
= def(term
->esc_args
[0], 0);
3846 if (i
== 0 || i
== 1) {
3847 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
3849 ldisc_send(term
->ldisc
, buf
, 20, 0);
3854 compatibility(OTHER
);
3856 int i
= def(term
->esc_args
[0], 1);
3857 pos old_curs
= term
->curs
;
3859 for(;i
>0 && term
->curs
.x
>0; i
--) {
3862 } while (term
->curs
.x
>0 &&
3863 !term
->tabs
[term
->curs
.x
]);
3865 check_selection(term
, old_curs
, term
->curs
);
3868 case ANSI('c', '='): /* Hide or Show Cursor */
3869 compatibility(SCOANSI
);
3870 switch(term
->esc_args
[0]) {
3871 case 0: /* hide cursor */
3872 term
->cursor_on
= FALSE
;
3874 case 1: /* restore cursor */
3875 term
->big_cursor
= FALSE
;
3876 term
->cursor_on
= TRUE
;
3878 case 2: /* block cursor */
3879 term
->big_cursor
= TRUE
;
3880 term
->cursor_on
= TRUE
;
3884 case ANSI('C', '='):
3886 * set cursor start on scanline esc_args[0] and
3887 * end on scanline esc_args[1].If you set
3888 * the bottom scan line to a value less than
3889 * the top scan line, the cursor will disappear.
3891 compatibility(SCOANSI
);
3892 if (term
->esc_nargs
>= 2) {
3893 if (term
->esc_args
[0] > term
->esc_args
[1])
3894 term
->cursor_on
= FALSE
;
3896 term
->cursor_on
= TRUE
;
3899 case ANSI('D', '='):
3900 compatibility(SCOANSI
);
3901 term
->blink_is_real
= FALSE
;
3902 term_schedule_tblink(term
);
3903 if (term
->esc_args
[0]>=1)
3904 term
->curr_attr
|= ATTR_BLINK
;
3906 term
->curr_attr
&= ~ATTR_BLINK
;
3908 case ANSI('E', '='):
3909 compatibility(SCOANSI
);
3910 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
3911 term_schedule_tblink(term
);
3913 case ANSI('F', '='): /* set normal foreground */
3914 compatibility(SCOANSI
);
3915 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3917 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3918 (term
->esc_args
[0] & 0x8)) <<
3920 term
->curr_attr
&= ~ATTR_FGMASK
;
3921 term
->curr_attr
|= colour
;
3922 term
->default_attr
&= ~ATTR_FGMASK
;
3923 term
->default_attr
|= colour
;
3924 set_erase_char(term
);
3927 case ANSI('G', '='): /* set normal background */
3928 compatibility(SCOANSI
);
3929 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
3931 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
3932 (term
->esc_args
[0] & 0x8)) <<
3934 term
->curr_attr
&= ~ATTR_BGMASK
;
3935 term
->curr_attr
|= colour
;
3936 term
->default_attr
&= ~ATTR_BGMASK
;
3937 term
->default_attr
|= colour
;
3938 set_erase_char(term
);
3941 case ANSI('L', '='):
3942 compatibility(SCOANSI
);
3943 term
->use_bce
= (term
->esc_args
[0] <= 0);
3944 set_erase_char(term
);
3946 case ANSI('p', '"'): /* DECSCL: set compat level */
3948 * Allow the host to make this emulator a
3949 * 'perfect' VT102. This first appeared in
3950 * the VT220, but we do need to get back to
3951 * PuTTY mode so I won't check it.
3953 * The arg in 40..42,50 are a PuTTY extension.
3954 * The 2nd arg, 8bit vs 7bit is not checked.
3956 * Setting VT102 mode should also change
3957 * the Fkeys to generate PF* codes as a
3958 * real VT102 has no Fkeys. The VT220 does
3959 * this, F11..F13 become ESC,BS,LF other
3960 * Fkeys send nothing.
3962 * Note ESC c will NOT change this!
3965 switch (term
->esc_args
[0]) {
3967 term
->compatibility_level
&= ~TM_VTXXX
;
3968 term
->compatibility_level
|= TM_VT102
;
3971 term
->compatibility_level
&= ~TM_VTXXX
;
3972 term
->compatibility_level
|= TM_VT220
;
3976 if (term
->esc_args
[0] > 60 &&
3977 term
->esc_args
[0] < 70)
3978 term
->compatibility_level
|= TM_VTXXX
;
3982 term
->compatibility_level
&= TM_VTXXX
;
3985 term
->compatibility_level
= TM_PUTTY
;
3988 term
->compatibility_level
= TM_SCOANSI
;
3992 term
->compatibility_level
= TM_PUTTY
;
3998 /* Change the response to CSI c */
3999 if (term
->esc_args
[0] == 50) {
4002 strcpy(term
->id_string
, "\033[?");
4003 for (i
= 1; i
< term
->esc_nargs
; i
++) {
4005 strcat(term
->id_string
, ";");
4006 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
4007 strcat(term
->id_string
, lbuf
);
4009 strcat(term
->id_string
, "c");
4012 /* Is this a good idea ?
4013 * Well we should do a soft reset at this point ...
4015 if (!has_compat(VT420
) && has_compat(VT100
)) {
4016 if (!term
->cfg
.no_remote_resize
) {
4017 if (term
->reset_132
)
4018 request_resize(132, 24);
4020 request_resize(80, 24);
4028 term
->osc_w
= FALSE
;
4030 case 'P': /* Linux palette sequence */
4031 term
->termstate
= SEEN_OSC_P
;
4032 term
->osc_strlen
= 0;
4034 case 'R': /* Linux palette reset */
4035 palette_reset(term
->frontend
);
4036 term_invalidate(term
);
4037 term
->termstate
= TOPLEVEL
;
4039 case 'W': /* word-set */
4040 term
->termstate
= SEEN_OSC_W
;
4053 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4057 * Grotty hack to support xterm and DECterm title
4058 * sequences concurrently.
4060 if (term
->esc_args
[0] == 2) {
4061 term
->esc_args
[0] = 1;
4064 /* else fall through */
4066 term
->termstate
= OSC_STRING
;
4067 term
->osc_strlen
= 0;
4072 * This OSC stuff is EVIL. It takes just one character to get into
4073 * sysline mode and it's not initially obvious how to get out.
4074 * So I've added CR and LF as string aborts.
4075 * This shouldn't effect compatibility as I believe embedded
4076 * control characters are supposed to be interpreted (maybe?)
4077 * and they don't display anything useful anyway.
4081 if (c
== '\012' || c
== '\015') {
4082 term
->termstate
= TOPLEVEL
;
4083 } else if (c
== 0234 || c
== '\007') {
4085 * These characters terminate the string; ST and BEL
4086 * terminate the sequence and trigger instant
4087 * processing of it, whereas ESC goes back to SEEN_ESC
4088 * mode unless it is followed by \, in which case it is
4089 * synonymous with ST in the first place.
4092 term
->termstate
= TOPLEVEL
;
4093 } else if (c
== '\033')
4094 term
->termstate
= OSC_MAYBE_ST
;
4095 else if (term
->osc_strlen
< OSC_STR_MAX
)
4096 term
->osc_string
[term
->osc_strlen
++] = (char)c
;
4100 int max
= (term
->osc_strlen
== 0 ?
21 : 15);
4102 if ((int)c
>= '0' && (int)c
<= '9')
4104 else if ((int)c
>= 'A' && (int)c
<= 'A' + max
- 10)
4106 else if ((int)c
>= 'a' && (int)c
<= 'a' + max
- 10)
4109 term
->termstate
= TOPLEVEL
;
4112 term
->osc_string
[term
->osc_strlen
++] = val
;
4113 if (term
->osc_strlen
>= 7) {
4114 palette_set(term
->frontend
, term
->osc_string
[0],
4115 term
->osc_string
[1] * 16 + term
->osc_string
[2],
4116 term
->osc_string
[3] * 16 + term
->osc_string
[4],
4117 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
4118 term_invalidate(term
);
4119 term
->termstate
= TOPLEVEL
;
4135 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
4138 term
->termstate
= OSC_STRING
;
4139 term
->osc_strlen
= 0;
4143 term
->termstate
= TOPLEVEL
;
4144 seen_disp_event(term
);
4147 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
4150 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
4153 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
4156 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
4159 * From the VT100 Manual
4160 * NOTE: The special graphics characters in the VT100
4161 * are different from those in the VT52
4163 * From VT102 manual:
4164 * 137 _ Blank - Same
4165 * 140 ` Reserved - Humm.
4166 * 141 a Solid rectangle - Similar
4167 * 142 b 1/ - Top half of fraction for the
4168 * 143 c 3/ - subscript numbers below.
4171 * 146 f Degrees - Same
4172 * 147 g Plus or minus - Same
4174 * 151 i Ellipsis (dots)
4177 * 154 l Bar at scan 0
4178 * 155 m Bar at scan 1
4179 * 156 n Bar at scan 2
4180 * 157 o Bar at scan 3 - Similar
4181 * 160 p Bar at scan 4 - Similar
4182 * 161 q Bar at scan 5 - Similar
4183 * 162 r Bar at scan 6 - Same
4184 * 163 s Bar at scan 7 - Similar
4199 term
->cset_attr
[term
->cset
= 0] = CSET_LINEDRW
;
4202 term
->cset_attr
[term
->cset
= 0] = CSET_ASCII
;
4205 move(term
, 0, 0, 0);
4208 if (term
->curs
.y
== 0)
4209 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
4210 else if (term
->curs
.y
> 0)
4212 term
->wrapnext
= FALSE
;
4215 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4219 erase_lots(term
, TRUE
, FALSE
, TRUE
);
4223 /* XXX Print cursor line */
4226 /* XXX Start controller mode */
4229 /* XXX Stop controller mode */
4233 term
->termstate
= VT52_Y1
;
4237 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
4240 term
->app_keypad_keys
= TRUE
;
4243 term
->app_keypad_keys
= FALSE
;
4246 /* XXX This should switch to VT100 mode not current or default
4247 * VT mode. But this will only have effect in a VT220+
4250 term
->vt52_mode
= FALSE
;
4251 term
->blink_is_real
= term
->cfg
.blinktext
;
4252 term_schedule_tblink(term
);
4256 /* XXX Enter auto print mode */
4259 /* XXX Exit auto print mode */
4262 /* XXX Print screen */
4268 /* compatibility(ATARI) */
4269 move(term
, 0, 0, 0);
4270 erase_lots(term
, FALSE
, FALSE
, TRUE
);
4274 /* compatibility(ATARI) */
4275 if (term
->curs
.y
<= term
->marg_b
)
4276 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
4279 /* compatibility(ATARI) */
4280 if (term
->curs
.y
<= term
->marg_b
)
4281 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
4284 /* compatibility(ATARI) */
4285 term
->termstate
= VT52_FG
;
4288 /* compatibility(ATARI) */
4289 term
->termstate
= VT52_BG
;
4292 /* compatibility(ATARI) */
4293 erase_lots(term
, FALSE
, TRUE
, FALSE
);
4297 /* compatibility(ATARI) */
4298 term
->cursor_on
= TRUE
;
4301 /* compatibility(ATARI) */
4302 term
->cursor_on
= FALSE
;
4304 /* case 'j': Save cursor position - broken on ST */
4305 /* case 'k': Restore cursor position */
4307 /* compatibility(ATARI) */
4308 erase_lots(term
, TRUE
, TRUE
, TRUE
);
4310 term
->wrapnext
= FALSE
;
4313 /* compatibility(ATARI) */
4314 erase_lots(term
, TRUE
, TRUE
, FALSE
);
4317 /* compatibility(ATARI) */
4318 term
->curr_attr
|= ATTR_REVERSE
;
4321 /* compatibility(ATARI) */
4322 term
->curr_attr
&= ~ATTR_REVERSE
;
4324 case 'v': /* wrap Autowrap on - Wyse style */
4325 /* compatibility(ATARI) */
4328 case 'w': /* Autowrap off */
4329 /* compatibility(ATARI) */
4334 /* compatibility(OTHER) */
4335 term
->vt52_bold
= FALSE
;
4336 term
->curr_attr
= ATTR_DEFAULT
;
4337 set_erase_char(term
);
4340 /* compatibility(VI50) */
4341 term
->curr_attr
|= ATTR_UNDER
;
4344 /* compatibility(VI50) */
4345 term
->curr_attr
&= ~ATTR_UNDER
;
4348 /* compatibility(VI50) */
4349 term
->vt52_bold
= TRUE
;
4350 term
->curr_attr
|= ATTR_BOLD
;
4353 /* compatibility(VI50) */
4354 term
->vt52_bold
= FALSE
;
4355 term
->curr_attr
&= ~ATTR_BOLD
;
4361 term
->termstate
= VT52_Y2
;
4362 move(term
, term
->curs
.x
, c
- ' ', 0);
4365 term
->termstate
= TOPLEVEL
;
4366 move(term
, c
- ' ', term
->curs
.y
, 0);
4371 term
->termstate
= TOPLEVEL
;
4372 term
->curr_attr
&= ~ATTR_FGMASK
;
4373 term
->curr_attr
&= ~ATTR_BOLD
;
4374 term
->curr_attr
|= (c
& 0xF) << ATTR_FGSHIFT
;
4375 set_erase_char(term
);
4378 term
->termstate
= TOPLEVEL
;
4379 term
->curr_attr
&= ~ATTR_BGMASK
;
4380 term
->curr_attr
&= ~ATTR_BLINK
;
4381 term
->curr_attr
|= (c
& 0xF) << ATTR_BGSHIFT
;
4382 set_erase_char(term
);
4385 default: break; /* placate gcc warning about enum use */
4387 if (term
->selstate
!= NO_SELECTION
) {
4388 pos cursplus
= term
->curs
;
4390 check_selection(term
, term
->curs
, cursplus
);
4394 term_print_flush(term
);
4395 if (term
->cfg
.logflush
)
4396 logflush(term
->logctx
);
4400 * To prevent having to run the reasonably tricky bidi algorithm
4401 * too many times, we maintain a cache of the last lineful of data
4402 * fed to the algorithm on each line of the display.
4404 static int term_bidi_cache_hit(Terminal
*term
, int line
,
4405 termchar
*lbefore
, int width
)
4409 if (!term
->pre_bidi_cache
)
4410 return FALSE
; /* cache doesn't even exist yet! */
4412 if (line
>= term
->bidi_cache_size
)
4413 return FALSE
; /* cache doesn't have this many lines */
4415 if (!term
->pre_bidi_cache
[line
].chars
)
4416 return FALSE
; /* cache doesn't contain _this_ line */
4418 if (term
->pre_bidi_cache
[line
].width
!= width
)
4419 return FALSE
; /* line is wrong width */
4421 for (i
= 0; i
< width
; i
++)
4422 if (!termchars_equal(term
->pre_bidi_cache
[line
].chars
+i
, lbefore
+i
))
4423 return FALSE
; /* line doesn't match cache */
4425 return TRUE
; /* it didn't match. */
4428 static void term_bidi_cache_store(Terminal
*term
, int line
, termchar
*lbefore
,
4429 termchar
*lafter
, bidi_char
*wcTo
,
4430 int width
, int size
)
4434 if (!term
->pre_bidi_cache
|| term
->bidi_cache_size
<= line
) {
4435 int j
= term
->bidi_cache_size
;
4436 term
->bidi_cache_size
= line
+1;
4437 term
->pre_bidi_cache
= sresize(term
->pre_bidi_cache
,
4438 term
->bidi_cache_size
,
4439 struct bidi_cache_entry
);
4440 term
->post_bidi_cache
= sresize(term
->post_bidi_cache
,
4441 term
->bidi_cache_size
,
4442 struct bidi_cache_entry
);
4443 while (j
< term
->bidi_cache_size
) {
4444 term
->pre_bidi_cache
[j
].chars
=
4445 term
->post_bidi_cache
[j
].chars
= NULL
;
4446 term
->pre_bidi_cache
[j
].width
=
4447 term
->post_bidi_cache
[j
].width
= -1;
4448 term
->pre_bidi_cache
[j
].forward
=
4449 term
->post_bidi_cache
[j
].forward
= NULL
;
4450 term
->pre_bidi_cache
[j
].backward
=
4451 term
->post_bidi_cache
[j
].backward
= NULL
;
4456 sfree(term
->pre_bidi_cache
[line
].chars
);
4457 sfree(term
->post_bidi_cache
[line
].chars
);
4458 sfree(term
->post_bidi_cache
[line
].forward
);
4459 sfree(term
->post_bidi_cache
[line
].backward
);
4461 term
->pre_bidi_cache
[line
].width
= width
;
4462 term
->pre_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4463 term
->post_bidi_cache
[line
].width
= width
;
4464 term
->post_bidi_cache
[line
].chars
= snewn(size
, termchar
);
4465 term
->post_bidi_cache
[line
].forward
= snewn(width
, int);
4466 term
->post_bidi_cache
[line
].backward
= snewn(width
, int);
4468 memcpy(term
->pre_bidi_cache
[line
].chars
, lbefore
, size
* TSIZE
);
4469 memcpy(term
->post_bidi_cache
[line
].chars
, lafter
, size
* TSIZE
);
4470 memset(term
->post_bidi_cache
[line
].forward
, 0, width
* sizeof(int));
4471 memset(term
->post_bidi_cache
[line
].backward
, 0, width
* sizeof(int));
4473 for (i
= 0; i
< width
; i
++) {
4474 int p
= wcTo
[i
].index
;
4476 assert(0 <= p
&& p
< width
);
4478 term
->post_bidi_cache
[line
].backward
[i
] = p
;
4479 term
->post_bidi_cache
[line
].forward
[p
] = i
;
4484 * Prepare the bidi information for a screen line. Returns the
4485 * transformed list of termchars, or NULL if no transformation at
4486 * all took place (because bidi is disabled). If return was
4487 * non-NULL, auxiliary information such as the forward and reverse
4488 * mappings of permutation position are available in
4489 * term->post_bidi_cache[scr_y].*.
4491 static termchar
*term_bidi_line(Terminal
*term
, struct termline
*ldata
,
4497 /* Do Arabic shaping and bidi. */
4498 if(!term
->cfg
.bidi
|| !term
->cfg
.arabicshaping
) {
4500 if (!term_bidi_cache_hit(term
, scr_y
, ldata
->chars
, term
->cols
)) {
4502 if (term
->wcFromTo_size
< term
->cols
) {
4503 term
->wcFromTo_size
= term
->cols
;
4504 term
->wcFrom
= sresize(term
->wcFrom
, term
->wcFromTo_size
,
4506 term
->wcTo
= sresize(term
->wcTo
, term
->wcFromTo_size
,
4510 for(it
=0; it
<term
->cols
; it
++)
4512 unsigned long uc
= (ldata
->chars
[it
].chr
);
4514 switch (uc
& CSET_MASK
) {
4516 if (!term
->cfg
.rawcnp
) {
4517 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
4521 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
4524 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
4527 switch (uc
& CSET_MASK
) {
4529 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
4532 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
4536 term
->wcFrom
[it
].origwc
= term
->wcFrom
[it
].wc
=
4538 term
->wcFrom
[it
].index
= it
;
4542 do_bidi(term
->wcFrom
, term
->cols
);
4544 /* this is saved iff done from inside the shaping */
4545 if(!term
->cfg
.bidi
&& term
->cfg
.arabicshaping
)
4546 for(it
=0; it
<term
->cols
; it
++)
4547 term
->wcTo
[it
] = term
->wcFrom
[it
];
4549 if(!term
->cfg
.arabicshaping
)
4550 do_shape(term
->wcFrom
, term
->wcTo
, term
->cols
);
4552 if (term
->ltemp_size
< ldata
->size
) {
4553 term
->ltemp_size
= ldata
->size
;
4554 term
->ltemp
= sresize(term
->ltemp
, term
->ltemp_size
,
4558 memcpy(term
->ltemp
, ldata
->chars
, ldata
->size
* TSIZE
);
4560 for(it
=0; it
<term
->cols
; it
++)
4562 term
->ltemp
[it
] = ldata
->chars
[term
->wcTo
[it
].index
];
4563 if (term
->ltemp
[it
].cc_next
)
4564 term
->ltemp
[it
].cc_next
-=
4565 it
- term
->wcTo
[it
].index
;
4567 if (term
->wcTo
[it
].origwc
!= term
->wcTo
[it
].wc
)
4568 term
->ltemp
[it
].chr
= term
->wcTo
[it
].wc
;
4570 term_bidi_cache_store(term
, scr_y
, ldata
->chars
,
4571 term
->ltemp
, term
->wcTo
,
4572 term
->cols
, ldata
->size
);
4574 lchars
= term
->ltemp
;
4576 lchars
= term
->post_bidi_cache
[scr_y
].chars
;
4586 * Given a context, update the window. Out of paranoia, we don't
4587 * allow WM_PAINT responses to do scrolling optimisations.
4589 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
4591 int i
, j
, our_curs_y
, our_curs_x
;
4596 #ifdef OPTIMISE_SCROLL
4597 struct scrollregion
*sr
;
4598 #endif /* OPTIMISE_SCROLL */
4602 ch
= snewn(chlen
, wchar_t);
4604 newline
= snewn(term
->cols
, termchar
);
4606 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
4609 * screen array, disptop, scrtop,
4611 * cfg.blinkpc, blink_is_real, tblinker,
4612 * curs.y, curs.x, cblinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
4615 /* Has the cursor position or type changed ? */
4616 if (term
->cursor_on
) {
4617 if (term
->has_focus
) {
4618 if (term
->cblinker
|| !term
->cfg
.blink_cur
)
4619 cursor
= TATTR_ACTCURS
;
4623 cursor
= TATTR_PASCURS
;
4625 cursor
|= TATTR_RIGHTCURS
;
4628 our_curs_y
= term
->curs
.y
- term
->disptop
;
4631 * Adjust the cursor position:
4633 * - in the case where it's resting on the right-hand half
4634 * of a CJK wide character. xterm's behaviour here,
4635 * which seems adequate to me, is to display the cursor
4636 * covering the _whole_ character, exactly as if it were
4637 * one space to the left.
4639 termline
*ldata
= lineptr(term
->curs
.y
);
4642 our_curs_x
= term
->curs
.x
;
4644 if ( (lchars
= term_bidi_line(term
, ldata
, our_curs_y
)) != NULL
) {
4645 our_curs_x
= term
->post_bidi_cache
[our_curs_y
].forward
[our_curs_x
];
4647 lchars
= ldata
->chars
;
4649 if (our_curs_x
> 0 &&
4650 lchars
[our_curs_x
].chr
== UCSWIDE
)
4657 * If the cursor is not where it was last time we painted, and
4658 * its previous position is visible on screen, invalidate its
4659 * previous position.
4661 if (term
->dispcursy
>= 0 &&
4662 (term
->curstype
!= cursor
||
4663 term
->dispcursy
!= our_curs_y
||
4664 term
->dispcursx
!= our_curs_x
)) {
4665 termchar
*dispcurs
= term
->disptext
[term
->dispcursy
]->chars
+
4668 if (term
->dispcursx
> 0 && dispcurs
->chr
== UCSWIDE
)
4669 dispcurs
[-1].attr
|= ATTR_INVALID
;
4670 if (term
->dispcursx
< term
->cols
-1 && dispcurs
[1].chr
== UCSWIDE
)
4671 dispcurs
[1].attr
|= ATTR_INVALID
;
4672 dispcurs
->attr
|= ATTR_INVALID
;
4676 term
->dispcursx
= term
->dispcursy
= -1;
4678 #ifdef OPTIMISE_SCROLL
4680 sr
= term
->scrollhead
;
4682 struct scrollregion
*next
= sr
->next
;
4683 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
4687 term
->scrollhead
= term
->scrolltail
= NULL
;
4688 #endif /* OPTIMISE_SCROLL */
4690 /* The normal screen data */
4691 for (i
= 0; i
< term
->rows
; i
++) {
4694 int dirty_line
, dirty_run
, selected
;
4695 unsigned long attr
= 0, cset
= 0;
4696 int updated_line
= 0;
4699 int last_run_dirty
= 0;
4700 int laststart
, dirtyrect
;
4703 scrpos
.y
= i
+ term
->disptop
;
4704 ldata
= lineptr(scrpos
.y
);
4706 /* Do Arabic shaping and bidi. */
4707 lchars
= term_bidi_line(term
, ldata
, i
);
4709 backward
= term
->post_bidi_cache
[i
].backward
;
4711 lchars
= ldata
->chars
;
4716 * First loop: work along the line deciding what we want
4717 * each character cell to look like.
4719 for (j
= 0; j
< term
->cols
; j
++) {
4720 unsigned long tattr
, tchar
;
4721 termchar
*d
= lchars
+ j
;
4722 scrpos
.x
= backward ? backward
[j
] : j
;
4727 if (!term
->cfg
.ansi_colour
)
4728 tattr
= (tattr
& ~(ATTR_FGMASK
| ATTR_BGMASK
)) |
4729 ATTR_DEFFG
| ATTR_DEFBG
;
4731 if (!term
->cfg
.xterm_256_colour
) {
4733 colour
= (tattr
& ATTR_FGMASK
) >> ATTR_FGSHIFT
;
4734 if (colour
>= 16 && colour
< 256)
4735 tattr
= (tattr
&~ ATTR_FGMASK
) | ATTR_DEFFG
;
4736 colour
= (tattr
& ATTR_BGMASK
) >> ATTR_BGSHIFT
;
4737 if (colour
>= 16 && colour
< 256)
4738 tattr
= (tattr
&~ ATTR_BGMASK
) | ATTR_DEFBG
;
4741 switch (tchar
& CSET_MASK
) {
4743 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
4746 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
4749 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
4752 if (j
< term
->cols
-1 && d
[1].chr
== UCSWIDE
)
4755 /* Video reversing things */
4756 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
4757 if (term
->seltype
== LEXICOGRAPHIC
)
4758 selected
= (posle(term
->selstart
, scrpos
) &&
4759 poslt(scrpos
, term
->selend
));
4761 selected
= (posPle(term
->selstart
, scrpos
) &&
4762 posPlt(scrpos
, term
->selend
));
4766 ^ (selected ? ATTR_REVERSE
: 0));
4768 /* 'Real' blinking ? */
4769 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
4770 if (term
->has_focus
&& term
->tblinker
) {
4771 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
4773 tattr
&= ~ATTR_BLINK
;
4777 * Check the font we'll _probably_ be using to see if
4778 * the character is wide when we don't want it to be.
4780 if (tchar
!= term
->disptext
[i
]->chars
[j
].chr
||
4781 tattr
!= (term
->disptext
[i
]->chars
[j
].attr
&~
4782 (ATTR_NARROW
| DATTR_MASK
))) {
4783 if ((tattr
& ATTR_WIDE
) == 0 && char_width(ctx
, tchar
) == 2)
4784 tattr
|= ATTR_NARROW
;
4785 } else if (term
->disptext
[i
]->chars
[j
].attr
& ATTR_NARROW
)
4786 tattr
|= ATTR_NARROW
;
4788 if (i
== our_curs_y
&& j
== our_curs_x
) {
4790 term
->curstype
= cursor
;
4791 term
->dispcursx
= j
;
4792 term
->dispcursy
= i
;
4796 newline
[j
].attr
= tattr
;
4797 newline
[j
].chr
= tchar
;
4798 /* Combining characters are still read from lchars */
4799 newline
[j
].cc_next
= 0;
4803 * Now loop over the line again, noting where things have
4806 * During this loop, we keep track of where we last saw
4807 * DATTR_STARTRUN. Any mismatch automatically invalidates
4808 * _all_ of the containing run that was last printed: that
4809 * is, any rectangle that was drawn in one go in the
4810 * previous update should be either left completely alone
4811 * or overwritten in its entirety. This, along with the
4812 * expectation that front ends clip all text runs to their
4813 * bounding rectangle, should solve any possible problems
4814 * with fonts that overflow their character cells.
4818 for (j
= 0; j
< term
->cols
; j
++) {
4819 if (term
->disptext
[i
]->chars
[j
].attr
& DATTR_STARTRUN
) {
4824 if (term
->disptext
[i
]->chars
[j
].chr
!= newline
[j
].chr
||
4825 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
)
4826 != newline
[j
].attr
) {
4830 for (k
= laststart
; k
< j
; k
++)
4831 term
->disptext
[i
]->chars
[k
].attr
|= ATTR_INVALID
;
4838 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
4842 * Finally, loop once more and actually do the drawing.
4844 dirty_run
= dirty_line
= (ldata
->lattr
!=
4845 term
->disptext
[i
]->lattr
);
4846 term
->disptext
[i
]->lattr
= ldata
->lattr
;
4848 for (j
= 0; j
< term
->cols
; j
++) {
4849 unsigned long tattr
, tchar
;
4850 int break_run
, do_copy
;
4851 termchar
*d
= lchars
+ j
;
4853 tattr
= newline
[j
].attr
;
4854 tchar
= newline
[j
].chr
;
4856 if ((term
->disptext
[i
]->chars
[j
].attr
^ tattr
) & ATTR_WIDE
)
4859 break_run
= ((tattr
^ attr
) & term
->attr_mask
) != 0;
4861 /* Special hack for VT100 Linedraw glyphs */
4862 if (tchar
>= 0x23BA && tchar
<= 0x23BD)
4866 * Separate out sequences of characters that have the
4867 * same CSET, if that CSET is a magic one.
4869 if (CSET_OF(tchar
) != cset
)
4873 * Break on both sides of any combined-character cell.
4875 if (d
->cc_next
!= 0 ||
4876 (j
> 0 && d
[-1].cc_next
!= 0))
4879 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
4880 if (term
->disptext
[i
]->chars
[j
].chr
== tchar
&&
4881 (term
->disptext
[i
]->chars
[j
].attr
&~ DATTR_MASK
) == tattr
)
4883 else if (!dirty_run
&& ccount
== 1)
4888 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
4889 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
4891 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
4892 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
4900 cset
= CSET_OF(tchar
);
4901 if (term
->ucsdata
->dbcs_screenfont
)
4902 last_run_dirty
= dirty_run
;
4903 dirty_run
= dirty_line
;
4907 if (!termchars_equal_override(&term
->disptext
[i
]->chars
[j
],
4913 if (ccount
>= chlen
) {
4914 chlen
= ccount
+ 256;
4915 ch
= sresize(ch
, chlen
, wchar_t);
4917 ch
[ccount
++] = (wchar_t) tchar
;
4922 while (dd
->cc_next
) {
4923 unsigned long schar
;
4928 switch (schar
& CSET_MASK
) {
4930 schar
= term
->ucsdata
->unitab_line
[schar
& 0xFF];
4933 schar
= term
->ucsdata
->unitab_xterm
[schar
& 0xFF];
4936 schar
= term
->ucsdata
->unitab_scoacs
[schar
&0xFF];
4940 if (ccount
>= chlen
) {
4941 chlen
= ccount
+ 256;
4942 ch
= sresize(ch
, chlen
, wchar_t);
4944 ch
[ccount
++] = (wchar_t) schar
;
4947 attr
|= TATTR_COMBINING
;
4951 copy_termchar(term
->disptext
[i
], j
, d
);
4952 term
->disptext
[i
]->chars
[j
].chr
= tchar
;
4953 term
->disptext
[i
]->chars
[j
].attr
= tattr
;
4955 term
->disptext
[i
]->chars
[j
].attr
|= DATTR_STARTRUN
;
4958 /* If it's a wide char step along to the next one. */
4959 if (tattr
& ATTR_WIDE
) {
4960 if (++j
< term
->cols
) {
4963 * By construction above, the cursor should not
4964 * be on the right-hand half of this character.
4967 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
4968 if (!termchars_equal(&term
->disptext
[i
]->chars
[j
], d
))
4970 copy_termchar(term
->disptext
[i
], j
, d
);
4974 if (dirty_run
&& ccount
> 0) {
4975 do_text(ctx
, start
, i
, ch
, ccount
, attr
,
4977 if (attr
& (TATTR_ACTCURS
| TATTR_PASCURS
))
4978 do_cursor(ctx
, start
, i
, ch
, ccount
, attr
,
4992 * Invalidate the whole screen so it will be repainted in full.
4994 void term_invalidate(Terminal
*term
)
4998 for (i
= 0; i
< term
->rows
; i
++)
4999 for (j
= 0; j
< term
->cols
; j
++)
5000 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5002 term_schedule_update(term
);
5006 * Paint the window in response to a WM_PAINT message.
5008 void term_paint(Terminal
*term
, Context ctx
,
5009 int left
, int top
, int right
, int bottom
, int immediately
)
5012 if (left
< 0) left
= 0;
5013 if (top
< 0) top
= 0;
5014 if (right
>= term
->cols
) right
= term
->cols
-1;
5015 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
5017 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
5018 if ((term
->disptext
[i
]->lattr
& LATTR_MODE
) == LATTR_NORM
)
5019 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
5020 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5022 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
5023 term
->disptext
[i
]->chars
[j
].attr
|= ATTR_INVALID
;
5027 do_paint (term
, ctx
, FALSE
);
5029 term_schedule_update(term
);
5034 * Attempt to scroll the scrollback. The second parameter gives the
5035 * position we want to scroll to; the first is +1 to denote that
5036 * this position is relative to the beginning of the scrollback, -1
5037 * to denote it is relative to the end, and 0 to denote that it is
5038 * relative to the current position.
5040 void term_scroll(Terminal
*term
, int rel
, int where
)
5042 int sbtop
= -sblines(term
);
5043 #ifdef OPTIMISE_SCROLL
5044 int olddisptop
= term
->disptop
;
5046 #endif /* OPTIMISE_SCROLL */
5048 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
5049 if (term
->disptop
< sbtop
)
5050 term
->disptop
= sbtop
;
5051 if (term
->disptop
> 0)
5054 #ifdef OPTIMISE_SCROLL
5055 shift
= (term
->disptop
- olddisptop
);
5056 if (shift
< term
->rows
&& shift
> -term
->rows
)
5057 scroll_display(term
, 0, term
->rows
- 1, shift
);
5058 #endif /* OPTIMISE_SCROLL */
5063 * Helper routine for clipme(): growing buffer.
5066 int buflen
; /* amount of allocated space in textbuf/attrbuf */
5067 int bufpos
; /* amount of actual data */
5068 wchar_t *textbuf
; /* buffer for copied text */
5069 wchar_t *textptr
; /* = textbuf + bufpos (current insertion point) */
5070 int *attrbuf
; /* buffer for copied attributes */
5071 int *attrptr
; /* = attrbuf + bufpos */
5074 static void clip_addchar(clip_workbuf
*b
, wchar_t chr
, int attr
)
5076 if (b
->bufpos
>= b
->buflen
) {
5078 b
->textbuf
= sresize(b
->textbuf
, b
->buflen
, wchar_t);
5079 b
->textptr
= b
->textbuf
+ b
->bufpos
;
5080 b
->attrbuf
= sresize(b
->attrbuf
, b
->buflen
, int);
5081 b
->attrptr
= b
->attrbuf
+ b
->bufpos
;
5083 *b
->textptr
++ = chr
;
5084 *b
->attrptr
++ = attr
;
5088 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
5096 buf
.textptr
= buf
.textbuf
= snewn(buf
.buflen
, wchar_t);
5097 buf
.attrptr
= buf
.attrbuf
= snewn(buf
.buflen
, int);
5099 old_top_x
= top
.x
; /* needed for rect==1 */
5101 while (poslt(top
, bottom
)) {
5103 termline
*ldata
= lineptr(top
.y
);
5107 * nlpos will point at the maximum position on this line we
5108 * should copy up to. So we start it at the end of the
5112 nlpos
.x
= term
->cols
;
5115 * ... move it backwards if there's unused space at the end
5116 * of the line (and also set `nl' if this is the case,
5117 * because in normal selection mode this means we need a
5118 * newline at the end)...
5120 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5122 IS_SPACE_CHR(ldata
->chars
[nlpos
.x
- 1].chr
) &&
5123 !ldata
->chars
[nlpos
.x
- 1].cc_next
&&
5126 if (poslt(nlpos
, bottom
))
5128 } else if (ldata
->lattr
& LATTR_WRAPPED2
) {
5129 /* Ignore the last char on the line in a WRAPPED2 line. */
5134 * ... and then clip it to the terminal x coordinate if
5135 * we're doing rectangular selection. (In this case we
5136 * still did the above, so that copying e.g. the right-hand
5137 * column from a table doesn't fill with spaces on the
5141 if (nlpos
.x
> bottom
.x
)
5143 nl
= (top
.y
< bottom
.y
);
5146 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
5149 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
5151 wchar_t cbuf
[16], *p
;
5155 if (ldata
->chars
[x
].chr
== UCSWIDE
) {
5161 int uc
= ldata
->chars
[x
].chr
;
5162 attr
= ldata
->chars
[x
].attr
;
5164 switch (uc
& CSET_MASK
) {
5166 if (!term
->cfg
.rawcnp
) {
5167 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5171 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5174 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5177 switch (uc
& CSET_MASK
) {
5179 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5182 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5186 set
= (uc
& CSET_MASK
);
5187 c
= (uc
& ~CSET_MASK
);
5191 if (DIRECT_FONT(uc
)) {
5192 if (c
>= ' ' && c
!= 0x7F) {
5196 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
5198 buf
[1] = (char) (0xFF & ldata
->chars
[top
.x
+ 1].chr
);
5199 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
5203 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
5207 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
5214 for (p
= cbuf
; *p
; p
++)
5215 clip_addchar(&buf
, *p
, attr
);
5217 if (ldata
->chars
[x
].cc_next
)
5218 x
+= ldata
->chars
[x
].cc_next
;
5226 for (i
= 0; i
< sel_nl_sz
; i
++)
5227 clip_addchar(&buf
, sel_nl
[i
], 0);
5230 top
.x
= rect ? old_top_x
: 0;
5234 #if SELECTION_NUL_TERMINATED
5235 clip_addchar(&buf
, 0, 0);
5237 /* Finally, transfer all that to the clipboard. */
5238 write_clip(term
->frontend
, buf
.textbuf
, buf
.attrbuf
, buf
.bufpos
, desel
);
5243 void term_copyall(Terminal
*term
)
5247 tree234
*screen
= term
->screen
;
5248 top
.y
= -sblines(term
);
5250 bottom
.y
= find_last_nonempty_line(term
, screen
);
5251 bottom
.x
= term
->cols
;
5252 clipme(term
, top
, bottom
, 0, TRUE
);
5256 * The wordness array is mainly for deciding the disposition of the
5257 * US-ASCII characters.
5259 static int wordtype(Terminal
*term
, int uc
)
5262 int start
, end
, ctype
;
5264 static const struct ucsword ucs_words
[] = {
5270 0x037e, 0x037e, 1}, /* Greek question mark */
5272 0x0387, 0x0387, 1}, /* Greek ano teleia */
5274 0x055a, 0x055f, 1}, /* Armenian punctuation */
5276 0x0589, 0x0589, 1}, /* Armenian full stop */
5278 0x0700, 0x070d, 1}, /* Syriac punctuation */
5280 0x104a, 0x104f, 1}, /* Myanmar punctuation */
5282 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
5284 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
5286 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
5288 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
5290 0x1800, 0x180a, 1}, /* Mongolian punctuation */
5292 0x2000, 0x200a, 0}, /* Various spaces */
5294 0x2070, 0x207f, 2}, /* superscript */
5296 0x2080, 0x208f, 2}, /* subscript */
5298 0x200b, 0x27ff, 1}, /* punctuation and symbols */
5300 0x3000, 0x3000, 0}, /* ideographic space */
5302 0x3001, 0x3020, 1}, /* ideographic punctuation */
5304 0x303f, 0x309f, 3}, /* Hiragana */
5306 0x30a0, 0x30ff, 3}, /* Katakana */
5308 0x3300, 0x9fff, 3}, /* CJK Ideographs */
5310 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
5312 0xf900, 0xfaff, 3}, /* CJK Ideographs */
5314 0xfe30, 0xfe6b, 1}, /* punctuation forms */
5316 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
5318 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
5320 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
5322 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
5324 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
5328 const struct ucsword
*wptr
;
5330 switch (uc
& CSET_MASK
) {
5332 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
5335 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
5338 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
5341 switch (uc
& CSET_MASK
) {
5343 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
5346 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
5350 /* For DBCS fonts I can't do anything useful. Even this will sometimes
5351 * fail as there's such a thing as a double width space. :-(
5353 if (term
->ucsdata
->dbcs_screenfont
&&
5354 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
5358 return term
->wordness
[uc
];
5360 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
5361 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
5369 * Spread the selection outwards according to the selection mode.
5371 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
5375 int topy
= -sblines(term
);
5377 ldata
= lineptr(p
.y
);
5379 switch (term
->selmode
) {
5382 * In this mode, every character is a separate unit, except
5383 * for runs of spaces at the end of a non-wrapping line.
5385 if (!(ldata
->lattr
& LATTR_WRAPPED
)) {
5386 termchar
*q
= ldata
->chars
+ term
->cols
;
5387 while (q
> ldata
->chars
&&
5388 IS_SPACE_CHR(q
[-1].chr
) && !q
[-1].cc_next
)
5390 if (q
== ldata
->chars
+ term
->cols
)
5392 if (p
.x
>= q
- ldata
->chars
)
5393 p
.x
= (dir
== -1 ? q
- ldata
->chars
: term
->cols
- 1);
5398 * In this mode, the units are maximal runs of characters
5399 * whose `wordness' has the same value.
5401 wvalue
= wordtype(term
, UCSGET(ldata
->chars
, p
.x
));
5404 int maxcols
= (ldata
->lattr
& LATTR_WRAPPED2 ?
5405 term
->cols
-1 : term
->cols
);
5406 if (p
.x
< maxcols
-1) {
5407 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
+1)) == wvalue
)
5412 if (ldata
->lattr
& LATTR_WRAPPED
) {
5414 ldata2
= lineptr(p
.y
+1);
5415 if (wordtype(term
, UCSGET(ldata2
->chars
, 0))
5432 if (wordtype(term
, UCSGET(ldata
->chars
, p
.x
-1)) == wvalue
)
5441 ldata2
= lineptr(p
.y
-1);
5442 maxcols
= (ldata2
->lattr
& LATTR_WRAPPED2 ?
5443 term
->cols
-1 : term
->cols
);
5444 if (ldata2
->lattr
& LATTR_WRAPPED
) {
5445 if (wordtype(term
, UCSGET(ldata2
->chars
, maxcols
-1))
5463 * In this mode, every line is a unit.
5465 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
5473 static void sel_spread(Terminal
*term
)
5475 if (term
->seltype
== LEXICOGRAPHIC
) {
5476 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
5477 decpos(term
->selend
);
5478 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
5479 incpos(term
->selend
);
5483 void term_do_paste(Terminal
*term
)
5488 get_clip(term
->frontend
, &data
, &len
);
5489 if (data
&& len
> 0) {
5492 term_seen_key_event(term
); /* pasted data counts */
5494 if (term
->paste_buffer
)
5495 sfree(term
->paste_buffer
);
5496 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5497 term
->paste_buffer
= snewn(len
, wchar_t);
5500 while (p
< data
+ len
) {
5501 while (p
< data
+ len
&&
5502 !(p
<= data
+ len
- sel_nl_sz
&&
5503 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
5508 for (i
= 0; i
< p
- q
; i
++) {
5509 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
5513 if (p
<= data
+ len
- sel_nl_sz
&&
5514 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
5515 term
->paste_buffer
[term
->paste_len
++] = '\015';
5521 /* Assume a small paste will be OK in one go. */
5522 if (term
->paste_len
< 256) {
5524 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
5525 if (term
->paste_buffer
)
5526 sfree(term
->paste_buffer
);
5527 term
->paste_buffer
= 0;
5528 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
5531 get_clip(term
->frontend
, NULL
, NULL
);
5534 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
5535 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
5539 int raw_mouse
= (term
->xterm_mouse
&&
5540 !term
->cfg
.no_mouse_rep
&&
5541 !(term
->cfg
.mouse_override
&& shift
));
5542 int default_seltype
;
5546 if (a
== MA_DRAG
&& !raw_mouse
)
5547 term_scroll(term
, 0, -1);
5549 if (y
>= term
->rows
) {
5551 if (a
== MA_DRAG
&& !raw_mouse
)
5552 term_scroll(term
, 0, +1);
5561 if (x
>= term
->cols
)
5564 selpoint
.y
= y
+ term
->disptop
;
5565 ldata
= lineptr(selpoint
.y
);
5567 if ((ldata
->lattr
& LATTR_MODE
) != LATTR_NORM
)
5571 * Transform x through the bidi algorithm to find the _logical_
5572 * click point from the physical one.
5574 if (term_bidi_line(term
, ldata
, y
) != NULL
) {
5575 x
= term
->post_bidi_cache
[y
].backward
[x
];
5582 * If we're in the middle of a selection operation, we ignore raw
5583 * mouse mode until it's done (we must have been not in raw mouse
5584 * mode when it started).
5585 * This makes use of Shift for selection reliable, and avoids the
5586 * host seeing mouse releases for which they never saw corresponding
5590 (term
->selstate
!= ABOUT_TO
) && (term
->selstate
!= DRAGGING
)) {
5591 int encstate
= 0, r
, c
;
5598 encstate
= 0x20; /* left button down */
5609 case MBT_WHEEL_DOWN
:
5612 default: break; /* placate gcc warning about enum use */
5616 if (term
->xterm_mouse
== 1)
5622 term
->mouse_is_down
= 0;
5625 if (term
->mouse_is_down
== braw
)
5627 term
->mouse_is_down
= braw
;
5629 default: break; /* placate gcc warning about enum use */
5638 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
5639 ldisc_send(term
->ldisc
, abuf
, 6, 0);
5645 * Set the selection type (rectangular or normal) at the start
5646 * of a selection attempt, from the state of Alt.
5648 if (!alt
^ !term
->cfg
.rect_select
)
5649 default_seltype
= RECTANGULAR
;
5651 default_seltype
= LEXICOGRAPHIC
;
5653 if (term
->selstate
== NO_SELECTION
) {
5654 term
->seltype
= default_seltype
;
5657 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
5659 term
->selstate
= ABOUT_TO
;
5660 term
->seltype
= default_seltype
;
5661 term
->selanchor
= selpoint
;
5662 term
->selmode
= SM_CHAR
;
5663 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
5665 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
5666 term
->selstate
= DRAGGING
;
5667 term
->selstart
= term
->selanchor
= selpoint
;
5668 term
->selend
= term
->selstart
;
5669 incpos(term
->selend
);
5671 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
5672 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
5673 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
5675 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
5676 term
->selstate
== SELECTED
) {
5677 if (term
->seltype
== LEXICOGRAPHIC
) {
5679 * For normal selection, we extend by moving
5680 * whichever end of the current selection is closer
5683 if (posdiff(selpoint
, term
->selstart
) <
5684 posdiff(term
->selend
, term
->selstart
) / 2) {
5685 term
->selanchor
= term
->selend
;
5686 decpos(term
->selanchor
);
5688 term
->selanchor
= term
->selstart
;
5692 * For rectangular selection, we have a choice of
5693 * _four_ places to put selanchor and selpoint: the
5694 * four corners of the selection.
5696 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
5697 term
->selanchor
.x
= term
->selend
.x
-1;
5699 term
->selanchor
.x
= term
->selstart
.x
;
5701 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
5702 term
->selanchor
.y
= term
->selend
.y
;
5704 term
->selanchor
.y
= term
->selstart
.y
;
5706 term
->selstate
= DRAGGING
;
5708 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
5709 term
->selanchor
= selpoint
;
5710 term
->selstate
= DRAGGING
;
5711 if (term
->seltype
== LEXICOGRAPHIC
) {
5713 * For normal selection, we set (selstart,selend) to
5714 * (selpoint,selanchor) in some order.
5716 if (poslt(selpoint
, term
->selanchor
)) {
5717 term
->selstart
= selpoint
;
5718 term
->selend
= term
->selanchor
;
5719 incpos(term
->selend
);
5721 term
->selstart
= term
->selanchor
;
5722 term
->selend
= selpoint
;
5723 incpos(term
->selend
);
5727 * For rectangular selection, we may need to
5728 * interchange x and y coordinates (if the user has
5729 * dragged in the -x and +y directions, or vice versa).
5731 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
5732 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
5733 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
5734 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
5737 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
5739 if (term
->selstate
== DRAGGING
) {
5741 * We've completed a selection. We now transfer the
5742 * data to the clipboard.
5744 clipme(term
, term
->selstart
, term
->selend
,
5745 (term
->seltype
== RECTANGULAR
), FALSE
);
5746 term
->selstate
= SELECTED
;
5748 term
->selstate
= NO_SELECTION
;
5749 } else if (bcooked
== MBT_PASTE
5751 #if MULTICLICK_ONLY_EVENT
5752 || a
== MA_2CLK
|| a
== MA_3CLK
5755 request_paste(term
->frontend
);
5761 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
5762 unsigned int modifiers
, unsigned int flags
)
5766 int prependesc
= FALSE
;
5770 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
5771 for (i
= 0; i
< tlen
; i
++)
5772 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
5773 fprintf(stderr
, "\n");
5777 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
5780 /* Currently, Meta always just prefixes everything with ESC. */
5781 if (modifiers
& PKM_META
)
5783 modifiers
&= ~PKM_META
;
5786 * Alt is only used for Alt+keypad, which isn't supported yet, so
5789 modifiers
&= ~PKM_ALT
;
5791 /* Standard local function keys */
5792 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
5794 if (keysym
== PK_PAGEUP
)
5795 /* scroll up one page */;
5796 if (keysym
== PK_PAGEDOWN
)
5797 /* scroll down on page */;
5798 if (keysym
== PK_INSERT
)
5799 term_do_paste(term
);
5802 if (keysym
== PK_PAGEUP
)
5803 /* scroll up one line */;
5804 if (keysym
== PK_PAGEDOWN
)
5805 /* scroll down one line */;
5806 /* Control-Numlock for app-keypad mode switch */
5807 if (keysym
== PK_PF1
)
5808 term
->app_keypad_keys
^= 1;
5812 if (modifiers
& PKM_ALT
) {
5813 /* Alt+F4 (close) */
5814 /* Alt+Return (full screen) */
5815 /* Alt+Space (system menu) */
5818 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
5819 text
[0] >= 0x20 && text
[0] <= 0x7e) {
5820 /* ASCII chars + Control */
5821 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
5822 (text
[0] >= 0x61 && text
[0] <= 0x7a))
5826 * Control-2 should return ^@ (0x00), Control-6 should return
5827 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
5828 * the DOS keyboard handling did it, and we have nothing better
5829 * to do with the key combo in question, we'll also map
5830 * Control-Backquote to ^\ (0x1C).
5833 case ' ': text
[0] = 0x00; break;
5834 case '-': text
[0] = 0x1f; break;
5835 case '/': text
[0] = 0x1f; break;
5836 case '2': text
[0] = 0x00; break;
5837 case '3': text
[0] = 0x1b; break;
5838 case '4': text
[0] = 0x1c; break;
5839 case '5': text
[0] = 0x1d; break;
5840 case '6': text
[0] = 0x1e; break;
5841 case '7': text
[0] = 0x1f; break;
5842 case '8': text
[0] = 0x7f; break;
5843 case '`': text
[0] = 0x1c; break;
5848 /* Nethack keypad */
5849 if (term
->cfg
.nethack_keypad
) {
5852 case PK_KP1
: c
= 'b'; break;
5853 case PK_KP2
: c
= 'j'; break;
5854 case PK_KP3
: c
= 'n'; break;
5855 case PK_KP4
: c
= 'h'; break;
5856 case PK_KP5
: c
= '.'; break;
5857 case PK_KP6
: c
= 'l'; break;
5858 case PK_KP7
: c
= 'y'; break;
5859 case PK_KP8
: c
= 'k'; break;
5860 case PK_KP9
: c
= 'u'; break;
5861 default: break; /* else gcc warns `enum value not used' */
5865 if (modifiers
& PKM_CONTROL
)
5867 else if (modifiers
& PKM_SHIFT
)
5875 /* Numeric Keypad */
5876 if (PK_ISKEYPAD(keysym
)) {
5880 * In VT400 mode, PFn always emits an escape sequence. In
5881 * Linux and tilde modes, this only happens in app keypad mode.
5883 if (term
->cfg
.funky_type
== FUNKY_VT400
||
5884 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
5885 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
5886 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
5888 case PK_PF1
: xkey
= 'P'; break;
5889 case PK_PF2
: xkey
= 'Q'; break;
5890 case PK_PF3
: xkey
= 'R'; break;
5891 case PK_PF4
: xkey
= 'S'; break;
5892 default: break; /* else gcc warns `enum value not used' */
5895 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
5897 case PK_KP0
: xkey
= 'p'; break;
5898 case PK_KP1
: xkey
= 'q'; break;
5899 case PK_KP2
: xkey
= 'r'; break;
5900 case PK_KP3
: xkey
= 's'; break;
5901 case PK_KP4
: xkey
= 't'; break;
5902 case PK_KP5
: xkey
= 'u'; break;
5903 case PK_KP6
: xkey
= 'v'; break;
5904 case PK_KP7
: xkey
= 'w'; break;
5905 case PK_KP8
: xkey
= 'x'; break;
5906 case PK_KP9
: xkey
= 'y'; break;
5907 case PK_KPDECIMAL
: xkey
= 'n'; break;
5908 case PK_KPENTER
: xkey
= 'M'; break;
5909 default: break; /* else gcc warns `enum value not used' */
5911 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
5913 * xterm can't see the layout of the keypad, so it has
5914 * to rely on the X keysyms returned by the keys.
5915 * Hence, we look at the strings here, not the PuTTY
5916 * keysyms (which describe the layout).
5920 if (modifiers
& PKM_SHIFT
)
5925 case '/': xkey
= 'o'; break;
5926 case '*': xkey
= 'j'; break;
5927 case '-': xkey
= 'm'; break;
5931 * In all other modes, we try to retain the layout of
5932 * the DEC keypad in application mode.
5936 /* This key covers the '-' and ',' keys on a VT220 */
5937 if (modifiers
& PKM_SHIFT
)
5938 xkey
= 'm'; /* VT220 '-' */
5940 xkey
= 'l'; /* VT220 ',' */
5942 case PK_KPMINUS
: xkey
= 'm'; break;
5943 case PK_KPCOMMA
: xkey
= 'l'; break;
5944 default: break; /* else gcc warns `enum value not used' */
5949 if (term
->vt52_mode
) {
5950 if (xkey
>= 'P' && xkey
<= 'S')
5951 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
5953 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
5955 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
5958 /* Not in application mode -- treat the number pad as arrow keys? */
5959 if ((flags
& PKF_NUMLOCK
) == 0) {
5961 case PK_KP0
: keysym
= PK_INSERT
; break;
5962 case PK_KP1
: keysym
= PK_END
; break;
5963 case PK_KP2
: keysym
= PK_DOWN
; break;
5964 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
5965 case PK_KP4
: keysym
= PK_LEFT
; break;
5966 case PK_KP5
: keysym
= PK_REST
; break;
5967 case PK_KP6
: keysym
= PK_RIGHT
; break;
5968 case PK_KP7
: keysym
= PK_HOME
; break;
5969 case PK_KP8
: keysym
= PK_UP
; break;
5970 case PK_KP9
: keysym
= PK_PAGEUP
; break;
5971 default: break; /* else gcc warns `enum value not used' */
5976 /* Miscellaneous keys */
5983 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
5984 else if (modifiers
== PKM_SHIFT
)
5985 /* We do the opposite of what is configured */
5986 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
5992 else if (modifiers
== PKM_SHIFT
)
5993 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
5996 /* XXX window.c has ctrl+shift+space sending 0xa0 */
5998 if (modifiers
== PKM_CONTROL
)
6003 case PK_KPENTER
: /* Odd keypad modes handled above */
6004 if (modifiers
== 0) {
6006 if (term
->cr_lf_return
)
6010 default: break; /* else gcc warns `enum value not used' */
6013 /* SCO function keys and editing keys */
6014 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
6015 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
6016 static char const codes
[] =
6017 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
6018 int index
= keysym
- PK_F1
;
6020 if (modifiers
& PKM_SHIFT
) index
+= 12;
6021 if (modifiers
& PKM_CONTROL
) index
+= 24;
6022 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
6025 if (PK_ISEDITING(keysym
)) {
6029 case PK_DELETE
: *p
++ = 0x7f; goto done
;
6030 case PK_HOME
: xkey
= 'H'; break;
6031 case PK_INSERT
: xkey
= 'L'; break;
6032 case PK_END
: xkey
= 'F'; break;
6033 case PK_PAGEUP
: xkey
= 'I'; break;
6034 case PK_PAGEDOWN
: xkey
= 'G'; break;
6035 default: break; /* else gcc warns `enum value not used' */
6037 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
6041 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
6044 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
6045 /* Xterm shuffles these keys, apparently. */
6047 case PK_HOME
: keysym
= PK_INSERT
; break;
6048 case PK_INSERT
: keysym
= PK_HOME
; break;
6049 case PK_DELETE
: keysym
= PK_END
; break;
6050 case PK_END
: keysym
= PK_PAGEUP
; break;
6051 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
6052 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
6053 default: break; /* else gcc warns `enum value not used' */
6058 if (term
->cfg
.rxvt_homeend
&&
6059 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
6060 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
6064 if (term
->vt52_mode
) {
6068 * A real VT52 doesn't have these, and a VT220 doesn't
6069 * send anything for them in VT52 mode.
6072 case PK_HOME
: xkey
= 'H'; break;
6073 case PK_INSERT
: xkey
= 'L'; break;
6074 case PK_DELETE
: xkey
= 'M'; break;
6075 case PK_END
: xkey
= 'E'; break;
6076 case PK_PAGEUP
: xkey
= 'I'; break;
6077 case PK_PAGEDOWN
: xkey
= 'G'; break;
6078 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
6080 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6085 case PK_HOME
: code
= 1; break;
6086 case PK_INSERT
: code
= 2; break;
6087 case PK_DELETE
: code
= 3; break;
6088 case PK_END
: code
= 4; break;
6089 case PK_PAGEUP
: code
= 5; break;
6090 case PK_PAGEDOWN
: code
= 6; break;
6091 default: code
= 0; break; /* else gcc warns `enum value not used' */
6093 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
6097 if (PK_ISFKEY(keysym
)) {
6098 /* Map Shift+F1-F10 to F11-F20 */
6099 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
6101 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
6103 /* XXX This overrides the XTERM/VT52 mode below */
6105 if (keysym
>= PK_F6
) offt
++;
6106 if (keysym
>= PK_F12
) offt
++;
6107 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
6108 'P' + keysym
- PK_F1
- offt
);
6111 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
6112 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
6115 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
6116 if (term
->vt52_mode
)
6117 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
6119 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
6122 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
6126 if (PK_ISCURSOR(keysym
)) {
6130 case PK_UP
: xkey
= 'A'; break;
6131 case PK_DOWN
: xkey
= 'B'; break;
6132 case PK_RIGHT
: xkey
= 'C'; break;
6133 case PK_LEFT
: xkey
= 'D'; break;
6134 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
6135 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
6137 if (term
->vt52_mode
)
6138 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
6140 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
6142 /* Useful mapping of Ctrl-arrows */
6143 if (modifiers
== PKM_CONTROL
)
6147 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
6149 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
6155 if (p
> output
|| tlen
> 0) {
6157 * Interrupt an ongoing paste. I'm not sure
6158 * this is sensible, but for the moment it's
6159 * preferable to having to faff about buffering
6165 * We need not bother about stdin backlogs
6166 * here, because in GUI PuTTY we can't do
6167 * anything about it anyway; there's no means
6168 * of asking Windows to hold off on KEYDOWN
6169 * messages. We _have_ to buffer everything
6172 term_seen_key_event(term
);
6176 fprintf(stderr
, "sending ESC\n");
6178 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
6183 fprintf(stderr
, "sending %d bytes:", p
- output
);
6184 for (i
= 0; i
< p
- output
; i
++)
6185 fprintf(stderr
, " %02x", output
[i
]);
6186 fprintf(stderr
, "\n");
6188 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
6189 } else if (tlen
> 0) {
6191 fprintf(stderr
, "sending %d unichars:", tlen
);
6192 for (i
= 0; i
< tlen
; i
++)
6193 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
6194 fprintf(stderr
, "\n");
6196 luni_send(term
->ldisc
, text
, tlen
, 1);
6201 void term_nopaste(Terminal
*term
)
6203 if (term
->paste_len
== 0)
6205 sfree(term
->paste_buffer
);
6206 term
->paste_buffer
= NULL
;
6207 term
->paste_len
= 0;
6210 int term_paste_pending(Terminal
*term
)
6212 return term
->paste_len
!= 0;
6215 void term_paste(Terminal
*term
)
6217 long now
, paste_diff
;
6219 if (term
->paste_len
== 0)
6222 /* Don't wait forever to paste */
6223 if (term
->paste_hold
) {
6224 now
= GETTICKCOUNT();
6225 paste_diff
= now
- term
->last_paste
;
6226 if (paste_diff
>= 0 && paste_diff
< 450)
6229 term
->paste_hold
= 0;
6231 while (term
->paste_pos
< term
->paste_len
) {
6233 while (n
+ term
->paste_pos
< term
->paste_len
) {
6234 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
6238 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
6239 term
->paste_pos
+= n
;
6241 if (term
->paste_pos
< term
->paste_len
) {
6242 term
->paste_hold
= 1;
6246 sfree(term
->paste_buffer
);
6247 term
->paste_buffer
= NULL
;
6248 term
->paste_len
= 0;
6251 static void deselect(Terminal
*term
)
6253 term
->selstate
= NO_SELECTION
;
6254 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
6257 void term_deselect(Terminal
*term
)
6263 int term_ldisc(Terminal
*term
, int option
)
6265 if (option
== LD_ECHO
)
6266 return term
->term_echoing
;
6267 if (option
== LD_EDIT
)
6268 return term
->term_editing
;
6272 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
6274 bufchain_add(&term
->inbuf
, data
, len
);
6276 if (!term
->in_term_out
) {
6277 term
->in_term_out
= TRUE
;
6278 term_reset_cblink(term
);
6280 * During drag-selects, we do not process terminal input,
6281 * because the user will want the screen to hold still to
6284 if (term
->selstate
!= DRAGGING
)
6286 term
->in_term_out
= FALSE
;
6290 * term_out() always completely empties inbuf. Therefore,
6291 * there's no reason at all to return anything other than zero
6292 * from this function, because there _can't_ be a question of
6293 * the remote side needing to wait until term_out() has cleared
6296 * This is a slightly suboptimal way to deal with SSH-2 - in
6297 * principle, the window mechanism would allow us to continue
6298 * to accept data on forwarded ports and X connections even
6299 * while the terminal processing was going slowly - but we
6300 * can't do the 100% right thing without moving the terminal
6301 * processing into a separate thread, and that might hurt
6302 * portability. So we manage stdout buffering the old SSH-1 way:
6303 * if the terminal processing goes slowly, the whole SSH
6304 * connection stops accepting data until it's ready.
6306 * In practice, I can't imagine this causing serious trouble.
6312 * Write untrusted data to the terminal.
6313 * The only control character that should be honoured is \n (which
6314 * will behave as a CRLF).
6316 int term_data_untrusted(Terminal
*term
, const char *data
, int len
)
6319 /* FIXME: more sophisticated checking? */
6320 for (i
= 0; i
< len
; i
++) {
6321 if (data
[i
] == '\n')
6322 term_data(term
, 1, "\r\n", 2);
6323 else if (data
[i
] & 0x60)
6324 term_data(term
, 1, data
+ i
, 1);
6326 return 0; /* assumes that term_data() always returns 0 */
6329 void term_provide_logctx(Terminal
*term
, void *logctx
)
6331 term
->logctx
= logctx
;
6334 void term_set_focus(Terminal
*term
, int has_focus
)
6336 term
->has_focus
= has_focus
;
6337 term_schedule_cblink(term
);
6341 * Provide "auto" settings for remote tty modes, suitable for an
6342 * application with a terminal window.
6344 char *term_get_ttymode(Terminal
*term
, const char *mode
)
6347 if (strcmp(mode
, "ERASE") == 0) {
6348 val
= term
->cfg
.bksp_is_delete ?
"^?" : "^H";
6350 /* FIXME: perhaps we should set ONLCR based on cfg.lfhascr as well? */
6354 struct term_userpass_state
{
6356 int done_prompt
; /* printed out prompt yet? */
6357 size_t pos
; /* cursor position */
6361 * Process some terminal data in the course of username/password
6364 int term_get_userpass_input(Terminal
*term
, prompts_t
*p
,
6365 unsigned char *in
, int inlen
)
6367 struct term_userpass_state
*s
= (struct term_userpass_state
*)p
->data
;
6370 * First call. Set some stuff up.
6372 p
->data
= s
= snew(struct term_userpass_state
);
6375 /* We only print the `name' caption if we have to... */
6376 if (p
->name_reqd
&& p
->name
) {
6377 size_t l
= strlen(p
->name
);
6378 term_data_untrusted(term
, p
->name
, l
);
6379 if (p
->name
[l
-1] != '\n')
6380 term_data_untrusted(term
, "\n", 1);
6382 /* ...but we always print any `instruction'. */
6383 if (p
->instruction
) {
6384 size_t l
= strlen(p
->instruction
);
6385 term_data_untrusted(term
, p
->instruction
, l
);
6386 if (p
->instruction
[l
-1] != '\n')
6387 term_data_untrusted(term
, "\n", 1);
6390 * Zero all the results, in case we abort half-way through.
6394 for (i
= 0; i
< p
->n_prompts
; i
++)
6395 memset(p
->prompts
[i
]->result
, 0, p
->prompts
[i
]->result_len
);
6399 while (s
->curr_prompt
< p
->n_prompts
) {
6401 prompt_t
*pr
= p
->prompts
[s
->curr_prompt
];
6402 int finished_prompt
= 0;
6404 if (!s
->done_prompt
) {
6405 term_data_untrusted(term
, pr
->prompt
, strlen(pr
->prompt
));
6410 /* Breaking out here ensures that the prompt is printed even
6411 * if we're now waiting for user data. */
6412 if (!in
|| !inlen
) break;
6414 /* FIXME: should we be using local-line-editing code instead? */
6415 while (!finished_prompt
&& inlen
) {
6421 term_data(term
, 0, "\r\n", 2);
6422 pr
->result
[s
->pos
] = '\0';
6423 pr
->result
[pr
->result_len
- 1] = '\0';
6424 /* go to next prompt, if any */
6427 finished_prompt
= 1; /* break out */
6433 term_data(term
, 0, "\b \b", 3);
6439 while (s
->pos
> 0) {
6441 term_data(term
, 0, "\b \b", 3);
6447 /* Immediate abort. */
6448 term_data(term
, 0, "\r\n", 2);
6451 return 0; /* user abort */
6454 * This simplistic check for printability is disabled
6455 * when we're doing password input, because some people
6456 * have control characters in their passwords.
6459 (c
>= ' ' && c
<= '~') ||
6460 ((unsigned char) c
>= 160))
6461 && s
->pos
< pr
->result_len
- 1) {
6462 pr
->result
[s
->pos
++] = c
;
6464 term_data(term
, 0, &c
, 1);
6472 if (s
->curr_prompt
< p
->n_prompts
) {
6473 return -1; /* more data required */
6477 return +1; /* all done */