12 #include "terminal.h"
\r
14 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
\r
15 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
\r
16 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
\r
17 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
\r
19 /* Product-order comparisons for rectangular block selection. */
\r
20 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
\r
21 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
\r
23 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
\r
24 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
\r
28 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
\r
29 #define CL_VT100 0x0002 /* VT100 */
\r
30 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
\r
31 #define CL_VT102 0x0008 /* VT102 */
\r
32 #define CL_VT220 0x0010 /* VT220 */
\r
33 #define CL_VT320 0x0020 /* VT320 */
\r
34 #define CL_VT420 0x0040 /* VT420 */
\r
35 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
\r
36 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
\r
37 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
\r
38 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
\r
39 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
\r
41 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
\r
42 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
\r
43 #define TM_VT102 (TM_VT100AVO|CL_VT102)
\r
44 #define TM_VT220 (TM_VT102|CL_VT220)
\r
45 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
\r
46 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
\r
48 #define TM_PUTTY (0xFFFF)
\r
50 #define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
\r
51 #define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
\r
52 #define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
\r
53 #define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
\r
55 #define compatibility(x) \
\r
56 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
\r
57 term->termstate=TOPLEVEL; \
\r
60 #define compatibility2(x,y) \
\r
61 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
\r
62 term->termstate=TOPLEVEL; \
\r
66 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
\r
68 char *EMPTY_WINDOW_TITLE = "";
\r
70 const char sco2ansicolour[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
\r
72 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
\r
73 const wchar_t sel_nl[] = SEL_NL;
\r
76 * Fetch the character at a particular position in a line array,
\r
77 * for purposes of `wordtype'. The reason this isn't just a simple
\r
78 * array reference is that if the character we find is UCSWIDE,
\r
79 * then we must look one space further to the left.
\r
81 #define UCSGET(a, x) \
\r
82 ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
\r
85 * Detect the various aliases of U+0020 SPACE.
\r
87 #define IS_SPACE_CHR(chr) \
\r
88 ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
\r
93 #define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
\r
96 * Internal prototypes.
\r
98 static void resizeline(Terminal *, termline *, int);
\r
99 static termline *lineptr(Terminal *, int, int, int);
\r
100 static void unlineptr(termline *);
\r
101 static void do_paint(Terminal *, Context, int);
\r
102 static void erase_lots(Terminal *, int, int, int);
\r
103 static int find_last_nonempty_line(Terminal *, tree234 *);
\r
104 static void swap_screen(Terminal *, int, int, int);
\r
105 static void update_sbar(Terminal *);
\r
106 static void deselect(Terminal *);
\r
107 static void term_print_finish(Terminal *);
\r
108 static void scroll(Terminal *, int, int, int, int);
\r
109 #ifdef OPTIMISE_SCROLL
\r
110 static void scroll_display(Terminal *, int, int, int);
\r
111 #endif /* OPTIMISE_SCROLL */
\r
113 static termline *newline(Terminal *term, int cols, int bce)
\r
118 line = snew(termline);
\r
119 line->chars = snewn(cols, termchar);
\r
120 for (j = 0; j < cols; j++)
\r
121 line->chars[j] = (bce ? term->erase_char : term->basic_erase_char);
\r
122 line->cols = line->size = cols;
\r
123 line->lattr = LATTR_NORM;
\r
124 line->temporary = FALSE;
\r
130 static void freeline(termline *line)
\r
133 sfree(line->chars);
\r
138 static void unlineptr(termline *line)
\r
140 if (line->temporary)
\r
144 #ifdef TERM_CC_DIAGS
\r
146 * Diagnostic function: verify that a termline has a correct
\r
147 * combining character structure.
\r
149 * This is a performance-intensive check, so it's no longer enabled
\r
152 static void cc_check(termline *line)
\r
154 unsigned char *flags;
\r
157 assert(line->size >= line->cols);
\r
159 flags = snewn(line->size, unsigned char);
\r
161 for (i = 0; i < line->size; i++)
\r
162 flags[i] = (i < line->cols);
\r
164 for (i = 0; i < line->cols; i++) {
\r
166 while (line->chars[j].cc_next) {
\r
167 j += line->chars[j].cc_next;
\r
168 assert(j >= line->cols && j < line->size);
\r
177 assert(j >= line->cols && j < line->size);
\r
180 if (line->chars[j].cc_next)
\r
181 j += line->chars[j].cc_next;
\r
188 for (i = 0; i < line->size; i++)
\r
189 j += (flags[i] != 0);
\r
191 assert(j == line->size);
\r
198 * Add a combining character to a character cell.
\r
200 static void add_cc(termline *line, int col, unsigned long chr)
\r
204 assert(col >= 0 && col < line->cols);
\r
207 * Start by extending the cols array if the free list is empty.
\r
209 if (!line->cc_free) {
\r
210 int n = line->size;
\r
211 line->size += 16 + (line->size - line->cols) / 2;
\r
212 line->chars = sresize(line->chars, line->size, termchar);
\r
214 while (n < line->size) {
\r
215 if (n+1 < line->size)
\r
216 line->chars[n].cc_next = 1;
\r
218 line->chars[n].cc_next = 0;
\r
224 * Now walk the cc list of the cell in question.
\r
226 while (line->chars[col].cc_next)
\r
227 col += line->chars[col].cc_next;
\r
230 * `col' now points at the last cc currently in this cell; so
\r
231 * we simply add another one.
\r
233 newcc = line->cc_free;
\r
234 if (line->chars[newcc].cc_next)
\r
235 line->cc_free = newcc + line->chars[newcc].cc_next;
\r
238 line->chars[newcc].cc_next = 0;
\r
239 line->chars[newcc].chr = chr;
\r
240 line->chars[col].cc_next = newcc - col;
\r
242 #ifdef TERM_CC_DIAGS
\r
248 * Clear the combining character list in a character cell.
\r
250 static void clear_cc(termline *line, int col)
\r
252 int oldfree, origcol = col;
\r
254 assert(col >= 0 && col < line->cols);
\r
256 if (!line->chars[col].cc_next)
\r
257 return; /* nothing needs doing */
\r
259 oldfree = line->cc_free;
\r
260 line->cc_free = col + line->chars[col].cc_next;
\r
261 while (line->chars[col].cc_next)
\r
262 col += line->chars[col].cc_next;
\r
264 line->chars[col].cc_next = oldfree - col;
\r
266 line->chars[col].cc_next = 0;
\r
268 line->chars[origcol].cc_next = 0;
\r
270 #ifdef TERM_CC_DIAGS
\r
276 * Compare two character cells for equality. Special case required
\r
277 * in do_paint() where we override what we expect the chr and attr
\r
280 static int termchars_equal_override(termchar *a, termchar *b,
\r
281 unsigned long bchr, unsigned long battr)
\r
283 /* FULL-TERMCHAR */
\r
284 if (a->chr != bchr)
\r
286 if ((a->attr &~ DATTR_MASK) != (battr &~ DATTR_MASK))
\r
288 while (a->cc_next || b->cc_next) {
\r
289 if (!a->cc_next || !b->cc_next)
\r
290 return FALSE; /* one cc-list ends, other does not */
\r
293 if (a->chr != b->chr)
\r
299 static int termchars_equal(termchar *a, termchar *b)
\r
301 return termchars_equal_override(a, b, b->chr, b->attr);
\r
305 * Copy a character cell. (Requires a pointer to the destination
\r
306 * termline, so as to access its free list.)
\r
308 static void copy_termchar(termline *destline, int x, termchar *src)
\r
310 clear_cc(destline, x);
\r
312 destline->chars[x] = *src; /* copy everything except cc-list */
\r
313 destline->chars[x].cc_next = 0; /* and make sure this is zero */
\r
315 while (src->cc_next) {
\r
316 src += src->cc_next;
\r
317 add_cc(destline, x, src->chr);
\r
320 #ifdef TERM_CC_DIAGS
\r
321 cc_check(destline);
\r
326 * Move a character cell within its termline.
\r
328 static void move_termchar(termline *line, termchar *dest, termchar *src)
\r
330 /* First clear the cc list from the original char, just in case. */
\r
331 clear_cc(line, dest - line->chars);
\r
333 /* Move the character cell and adjust its cc_next. */
\r
334 *dest = *src; /* copy everything except cc-list */
\r
336 dest->cc_next = src->cc_next - (dest-src);
\r
338 /* Ensure the original cell doesn't have a cc list. */
\r
341 #ifdef TERM_CC_DIAGS
\r
347 * Compress and decompress a termline into an RLE-based format for
\r
348 * storing in scrollback. (Since scrollback almost never needs to
\r
349 * be modified and exists in huge quantities, this is a sensible
\r
350 * tradeoff, particularly since it allows us to continue adding
\r
351 * features to the main termchar structure without proportionally
\r
352 * bloating the terminal emulator's memory footprint unless those
\r
353 * features are in constant use.)
\r
356 unsigned char *data;
\r
359 static void add(struct buf *b, unsigned char c)
\r
361 if (b->len >= b->size) {
\r
362 b->size = (b->len * 3 / 2) + 512;
\r
363 b->data = sresize(b->data, b->size, unsigned char);
\r
365 b->data[b->len++] = c;
\r
367 static int get(struct buf *b)
\r
369 return b->data[b->len++];
\r
371 static void makerle(struct buf *b, termline *ldata,
\r
372 void (*makeliteral)(struct buf *b, termchar *c,
\r
373 unsigned long *state))
\r
375 int hdrpos, hdrsize, n, prevlen, prevpos, thislen, thispos, prev2;
\r
376 termchar *c = ldata->chars;
\r
377 unsigned long state = 0, oldstate;
\r
384 prevlen = prevpos = 0;
\r
389 makeliteral(b, c++, &state);
\r
390 thislen = b->len - thispos;
\r
391 if (thislen == prevlen &&
\r
392 !memcmp(b->data + prevpos, b->data + thispos, thislen)) {
\r
394 * This literal precisely matches the previous one.
\r
395 * Turn it into a run if it's worthwhile.
\r
397 * With one-byte literals, it costs us two bytes to
\r
398 * encode a run, plus another byte to write the header
\r
399 * to resume normal output; so a three-element run is
\r
400 * neutral, and anything beyond that is unconditionally
\r
401 * worthwhile. With two-byte literals or more, even a
\r
404 if (thislen > 1 || prev2) {
\r
405 int runpos, runlen;
\r
408 * It's worth encoding a run. Start at prevpos,
\r
409 * unless hdrsize==0 in which case we can back up
\r
410 * another one and start by overwriting hdrpos.
\r
413 hdrsize--; /* remove the literal at prevpos */
\r
415 assert(hdrsize > 0);
\r
417 prevpos -= prevlen;/* and possibly another one */
\r
420 if (hdrsize == 0) {
\r
421 assert(prevpos == hdrpos + 1);
\r
423 b->len = prevpos+prevlen;
\r
425 memmove(b->data + prevpos+1, b->data + prevpos, prevlen);
\r
427 b->len = prevpos+prevlen+1;
\r
429 * Terminate the previous run of ordinary
\r
432 assert(hdrsize >= 1 && hdrsize <= 128);
\r
433 b->data[hdrpos] = hdrsize - 1;
\r
436 runlen = prev2 ? 3 : 2;
\r
438 while (n > 0 && runlen < 129) {
\r
439 int tmppos, tmplen;
\r
442 makeliteral(b, c, &state);
\r
443 tmplen = b->len - tmppos;
\r
445 if (tmplen != thislen ||
\r
446 memcmp(b->data + runpos+1, b->data + tmppos, tmplen)) {
\r
448 break; /* run over */
\r
450 n--, c++, runlen++;
\r
453 assert(runlen >= 2 && runlen <= 129);
\r
454 b->data[runpos] = runlen + 0x80 - 2;
\r
459 /* And ensure this run doesn't interfere with the next. */
\r
460 prevlen = prevpos = 0;
\r
466 * Just flag that the previous two literals were
\r
467 * identical, in case we find a third identical one
\r
468 * we want to turn into a run.
\r
481 * This character isn't (yet) part of a run. Add it to
\r
485 if (hdrsize == 128) {
\r
486 b->data[hdrpos] = hdrsize - 1;
\r
490 prevlen = prevpos = 0;
\r
499 assert(hdrsize <= 128);
\r
500 b->data[hdrpos] = hdrsize - 1;
\r
505 static void makeliteral_chr(struct buf *b, termchar *c, unsigned long *state)
\r
508 * My encoding for characters is UTF-8-like, in that it stores
\r
509 * 7-bit ASCII in one byte and uses high-bit-set bytes as
\r
510 * introducers to indicate a longer sequence. However, it's
\r
511 * unlike UTF-8 in that it doesn't need to be able to
\r
512 * resynchronise, and therefore I don't want to waste two bits
\r
513 * per byte on having recognisable continuation characters.
\r
514 * Also I don't want to rule out the possibility that I may one
\r
515 * day use values 0x80000000-0xFFFFFFFF for interesting
\r
516 * purposes, so unlike UTF-8 I need a full 32-bit range.
\r
517 * Accordingly, here is my encoding:
\r
519 * 00000000-0000007F: 0xxxxxxx (but see below)
\r
520 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
\r
521 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
\r
522 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
\r
523 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
\r
525 * (`Z' is like `x' but is always going to be zero since the
\r
526 * values I'm encoding don't go above 2^32. In principle the
\r
527 * five-byte form of the encoding could extend to 2^35, and
\r
528 * there could be six-, seven-, eight- and nine-byte forms as
\r
529 * well to allow up to 64-bit values to be encoded. But that's
\r
530 * completely unnecessary for these purposes!)
\r
532 * The encoding as written above would be very simple, except
\r
533 * that 7-bit ASCII can occur in several different ways in the
\r
534 * terminal data; sometimes it crops up in the D800 page
\r
535 * (CSET_ASCII) but at other times it's in the 0000 page (real
\r
536 * Unicode). Therefore, this encoding is actually _stateful_:
\r
537 * the one-byte encoding of 00-7F actually indicates `reuse the
\r
538 * upper three bytes of the last character', and to encode an
\r
539 * absolute value of 00-7F you need to use the two-byte form
\r
542 if ((c->chr & ~0x7F) == *state) {
\r
543 add(b, (unsigned char)(c->chr & 0x7F));
\r
544 } else if (c->chr < 0x4000) {
\r
545 add(b, (unsigned char)(((c->chr >> 8) & 0x3F) | 0x80));
\r
546 add(b, (unsigned char)(c->chr & 0xFF));
\r
547 } else if (c->chr < 0x200000) {
\r
548 add(b, (unsigned char)(((c->chr >> 16) & 0x1F) | 0xC0));
\r
549 add(b, (unsigned char)((c->chr >> 8) & 0xFF));
\r
550 add(b, (unsigned char)(c->chr & 0xFF));
\r
551 } else if (c->chr < 0x10000000) {
\r
552 add(b, (unsigned char)(((c->chr >> 24) & 0x0F) | 0xE0));
\r
553 add(b, (unsigned char)((c->chr >> 16) & 0xFF));
\r
554 add(b, (unsigned char)((c->chr >> 8) & 0xFF));
\r
555 add(b, (unsigned char)(c->chr & 0xFF));
\r
558 add(b, (unsigned char)((c->chr >> 24) & 0xFF));
\r
559 add(b, (unsigned char)((c->chr >> 16) & 0xFF));
\r
560 add(b, (unsigned char)((c->chr >> 8) & 0xFF));
\r
561 add(b, (unsigned char)(c->chr & 0xFF));
\r
563 *state = c->chr & ~0xFF;
\r
565 static void makeliteral_attr(struct buf *b, termchar *c, unsigned long *state)
\r
568 * My encoding for attributes is 16-bit-granular and assumes
\r
569 * that the top bit of the word is never required. I either
\r
570 * store a two-byte value with the top bit clear (indicating
\r
571 * just that value), or a four-byte value with the top bit set
\r
572 * (indicating the same value with its top bit clear).
\r
574 * However, first I permute the bits of the attribute value, so
\r
575 * that the eight bits of colour (four in each of fg and bg)
\r
576 * which are never non-zero unless xterm 256-colour mode is in
\r
577 * use are placed higher up the word than everything else. This
\r
578 * ensures that attribute values remain 16-bit _unless_ the
\r
579 * user uses extended colour.
\r
581 unsigned attr, colourbits;
\r
585 assert(ATTR_BGSHIFT > ATTR_FGSHIFT);
\r
587 colourbits = (attr >> (ATTR_BGSHIFT + 4)) & 0xF;
\r
589 colourbits |= (attr >> (ATTR_FGSHIFT + 4)) & 0xF;
\r
591 attr = (((attr >> (ATTR_BGSHIFT + 8)) << (ATTR_BGSHIFT + 4)) |
\r
592 (attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
\r
593 attr = (((attr >> (ATTR_FGSHIFT + 8)) << (ATTR_FGSHIFT + 4)) |
\r
594 (attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
\r
596 attr |= (colourbits << (32-9));
\r
598 if (attr < 0x8000) {
\r
599 add(b, (unsigned char)((attr >> 8) & 0xFF));
\r
600 add(b, (unsigned char)(attr & 0xFF));
\r
602 add(b, (unsigned char)(((attr >> 24) & 0x7F) | 0x80));
\r
603 add(b, (unsigned char)((attr >> 16) & 0xFF));
\r
604 add(b, (unsigned char)((attr >> 8) & 0xFF));
\r
605 add(b, (unsigned char)(attr & 0xFF));
\r
608 static void makeliteral_cc(struct buf *b, termchar *c, unsigned long *state)
\r
611 * For combining characters, I just encode a bunch of ordinary
\r
612 * chars using makeliteral_chr, and terminate with a \0
\r
613 * character (which I know won't come up as a combining char
\r
616 * I don't use the stateful encoding in makeliteral_chr.
\r
618 unsigned long zstate;
\r
621 while (c->cc_next) {
\r
624 assert(c->chr != 0);
\r
627 makeliteral_chr(b, c, &zstate);
\r
632 makeliteral_chr(b, &z, &zstate);
\r
635 static termline *decompressline(unsigned char *data, int *bytes_used);
\r
637 static unsigned char *compressline(termline *ldata)
\r
639 struct buf buffer = { NULL, 0, 0 }, *b = &buffer;
\r
642 * First, store the column count, 7 bits at a time, least
\r
643 * significant `digit' first, with the high bit set on all but
\r
647 int n = ldata->cols;
\r
649 add(b, (unsigned char)((n & 0x7F) | 0x80));
\r
652 add(b, (unsigned char)(n));
\r
656 * Next store the lattrs; same principle.
\r
659 int n = ldata->lattr;
\r
661 add(b, (unsigned char)((n & 0x7F) | 0x80));
\r
664 add(b, (unsigned char)(n));
\r
668 * Now we store a sequence of separate run-length encoded
\r
669 * fragments, each containing exactly as many symbols as there
\r
670 * are columns in the ldata.
\r
672 * All of these have a common basic format:
\r
674 * - a byte 00-7F indicates that X+1 literals follow it
\r
675 * - a byte 80-FF indicates that a single literal follows it
\r
676 * and expects to be repeated (X-0x80)+2 times.
\r
678 * The format of the `literals' varies between the fragments.
\r
680 makerle(b, ldata, makeliteral_chr);
\r
681 makerle(b, ldata, makeliteral_attr);
\r
682 makerle(b, ldata, makeliteral_cc);
\r
685 * Diagnostics: ensure that the compressed data really does
\r
686 * decompress to the right thing.
\r
688 * This is a bit performance-heavy for production code.
\r
690 #ifdef TERM_CC_DIAGS
\r
691 #ifndef CHECK_SB_COMPRESSION
\r
697 #ifdef DIAGNOSTIC_SB_COMPRESSION
\r
698 for (i = 0; i < b->len; i++) {
\r
699 printf(" %02x ", b->data[i]);
\r
704 dcl = decompressline(b->data, &dused);
\r
705 assert(b->len == dused);
\r
706 assert(ldata->cols == dcl->cols);
\r
707 assert(ldata->lattr == dcl->lattr);
\r
708 for (i = 0; i < ldata->cols; i++)
\r
709 assert(termchars_equal(&ldata->chars[i], &dcl->chars[i]));
\r
711 #ifdef DIAGNOSTIC_SB_COMPRESSION
\r
712 printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
\r
713 ldata->cols, 4 * ldata->cols, dused,
\r
714 (double)dused / (4 * ldata->cols));
\r
720 #endif /* TERM_CC_DIAGS */
\r
723 * Trim the allocated memory so we don't waste any, and return.
\r
725 return sresize(b->data, b->len, unsigned char);
\r
728 static void readrle(struct buf *b, termline *ldata,
\r
729 void (*readliteral)(struct buf *b, termchar *c,
\r
730 termline *ldata, unsigned long *state))
\r
733 unsigned long state = 0;
\r
735 while (n < ldata->cols) {
\r
741 int pos = b->len, count = hdr + 2 - 0x80;
\r
743 assert(n < ldata->cols);
\r
745 readliteral(b, ldata->chars + n, ldata, &state);
\r
749 /* Just a sequence of consecutive literals. */
\r
751 int count = hdr + 1;
\r
753 assert(n < ldata->cols);
\r
754 readliteral(b, ldata->chars + n, ldata, &state);
\r
760 assert(n == ldata->cols);
\r
762 static void readliteral_chr(struct buf *b, termchar *c, termline *ldata,
\r
763 unsigned long *state)
\r
768 * 00000000-0000007F: 0xxxxxxx
\r
769 * 00000080-00003FFF: 10xxxxxx xxxxxxxx
\r
770 * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
\r
771 * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
\r
772 * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
\r
777 c->chr = byte | *state;
\r
778 } else if (byte < 0xC0) {
\r
779 c->chr = (byte &~ 0xC0) << 8;
\r
781 } else if (byte < 0xE0) {
\r
782 c->chr = (byte &~ 0xE0) << 16;
\r
783 c->chr |= get(b) << 8;
\r
785 } else if (byte < 0xF0) {
\r
786 c->chr = (byte &~ 0xF0) << 24;
\r
787 c->chr |= get(b) << 16;
\r
788 c->chr |= get(b) << 8;
\r
791 assert(byte == 0xF0);
\r
792 c->chr = get(b) << 24;
\r
793 c->chr |= get(b) << 16;
\r
794 c->chr |= get(b) << 8;
\r
797 *state = c->chr & ~0xFF;
\r
799 static void readliteral_attr(struct buf *b, termchar *c, termline *ldata,
\r
800 unsigned long *state)
\r
802 unsigned val, attr, colourbits;
\r
807 if (val >= 0x8000) {
\r
810 val |= get(b) << 8;
\r
814 colourbits = (val >> (32-9)) & 0xFF;
\r
815 attr = (val & ((1<<(32-9))-1));
\r
817 attr = (((attr >> (ATTR_FGSHIFT + 4)) << (ATTR_FGSHIFT + 8)) |
\r
818 (attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
\r
819 attr = (((attr >> (ATTR_BGSHIFT + 4)) << (ATTR_BGSHIFT + 8)) |
\r
820 (attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
\r
822 attr |= (colourbits >> 4) << (ATTR_BGSHIFT + 4);
\r
823 attr |= (colourbits & 0xF) << (ATTR_FGSHIFT + 4);
\r
827 static void readliteral_cc(struct buf *b, termchar *c, termline *ldata,
\r
828 unsigned long *state)
\r
831 unsigned long zstate;
\r
832 int x = c - ldata->chars;
\r
838 readliteral_chr(b, &n, ldata, &zstate);
\r
841 add_cc(ldata, x, n.chr);
\r
845 static termline *decompressline(unsigned char *data, int *bytes_used)
\r
847 int ncols, byte, shift;
\r
848 struct buf buffer, *b = &buffer;
\r
855 * First read in the column count.
\r
860 ncols |= (byte & 0x7F) << shift;
\r
862 } while (byte & 0x80);
\r
865 * Now create the output termline.
\r
867 ldata = snew(termline);
\r
868 ldata->chars = snewn(ncols, termchar);
\r
869 ldata->cols = ldata->size = ncols;
\r
870 ldata->temporary = TRUE;
\r
871 ldata->cc_free = 0;
\r
874 * We must set all the cc pointers in ldata->chars to 0 right
\r
875 * now, so that cc diagnostics that verify the integrity of the
\r
876 * whole line will make sense while we're in the middle of
\r
881 for (i = 0; i < ldata->cols; i++)
\r
882 ldata->chars[i].cc_next = 0;
\r
886 * Now read in the lattr.
\r
888 ldata->lattr = shift = 0;
\r
891 ldata->lattr |= (byte & 0x7F) << shift;
\r
893 } while (byte & 0x80);
\r
896 * Now we read in each of the RLE streams in turn.
\r
898 readrle(b, ldata, readliteral_chr);
\r
899 readrle(b, ldata, readliteral_attr);
\r
900 readrle(b, ldata, readliteral_cc);
\r
902 /* Return the number of bytes read, for diagnostic purposes. */
\r
904 *bytes_used = b->len;
\r
910 * Resize a line to make it `cols' columns wide.
\r
912 static void resizeline(Terminal *term, termline *line, int cols)
\r
916 if (line->cols != cols) {
\r
918 oldcols = line->cols;
\r
921 * This line is the wrong length, which probably means it
\r
922 * hasn't been accessed since a resize. Resize it now.
\r
924 * First, go through all the characters that will be thrown
\r
925 * out in the resize (if we're shrinking the line) and
\r
926 * return their cc lists to the cc free list.
\r
928 for (i = cols; i < oldcols; i++)
\r
932 * If we're shrinking the line, we now bodily move the
\r
933 * entire cc section from where it started to where it now
\r
934 * needs to be. (We have to do this before the resize, so
\r
935 * that the data we're copying is still there. However, if
\r
936 * we're expanding, we have to wait until _after_ the
\r
937 * resize so that the space we're copying into is there.)
\r
939 if (cols < oldcols)
\r
940 memmove(line->chars + cols, line->chars + oldcols,
\r
941 (line->size - line->cols) * TSIZE);
\r
944 * Now do the actual resize, leaving the _same_ amount of
\r
945 * cc space as there was to begin with.
\r
947 line->size += cols - oldcols;
\r
948 line->chars = sresize(line->chars, line->size, TTYPE);
\r
952 * If we're expanding the line, _now_ we move the cc
\r
955 if (cols > oldcols)
\r
956 memmove(line->chars + cols, line->chars + oldcols,
\r
957 (line->size - line->cols) * TSIZE);
\r
960 * Go through what's left of the original line, and adjust
\r
961 * the first cc_next pointer in each list. (All the
\r
962 * subsequent ones are still valid because they are
\r
963 * relative offsets within the cc block.) Also do the same
\r
964 * to the head of the cc_free list.
\r
966 for (i = 0; i < oldcols && i < cols; i++)
\r
967 if (line->chars[i].cc_next)
\r
968 line->chars[i].cc_next += cols - oldcols;
\r
970 line->cc_free += cols - oldcols;
\r
973 * And finally fill in the new space with erase chars. (We
\r
974 * don't have to worry about cc lists here, because we
\r
975 * _know_ the erase char doesn't have one.)
\r
977 for (i = oldcols; i < cols; i++)
\r
978 line->chars[i] = term->basic_erase_char;
\r
980 #ifdef TERM_CC_DIAGS
\r
987 * Get the number of lines in the scrollback.
\r
989 static int sblines(Terminal *term)
\r
991 int sblines = count234(term->scrollback);
\r
992 if (term->cfg.erase_to_scrollback &&
\r
993 term->alt_which && term->alt_screen) {
\r
994 sblines += term->alt_sblines;
\r
1000 * Retrieve a line of the screen or of the scrollback, according to
\r
1001 * whether the y coordinate is non-negative or negative
\r
1004 static termline *lineptr(Terminal *term, int y, int lineno, int screen)
\r
1007 tree234 *whichtree;
\r
1011 whichtree = term->screen;
\r
1018 if (term->cfg.erase_to_scrollback &&
\r
1019 term->alt_which && term->alt_screen) {
\r
1020 altlines = term->alt_sblines;
\r
1022 if (y < -altlines) {
\r
1023 whichtree = term->scrollback;
\r
1024 treeindex = y + altlines + count234(term->scrollback);
\r
1026 whichtree = term->alt_screen;
\r
1027 treeindex = y + term->alt_sblines;
\r
1028 /* treeindex = y + count234(term->alt_screen); */
\r
1031 if (whichtree == term->scrollback) {
\r
1032 unsigned char *cline = index234(whichtree, treeindex);
\r
1033 line = decompressline(cline, NULL);
\r
1035 line = index234(whichtree, treeindex);
\r
1038 /* We assume that we don't screw up and retrieve something out of range. */
\r
1039 if (line == NULL) {
\r
1040 fatalbox("line==NULL in terminal.c\n"
\r
1041 "lineno=%d y=%d w=%d h=%d\n"
\r
1042 "count(scrollback=%p)=%d\n"
\r
1043 "count(screen=%p)=%d\n"
\r
1044 "count(alt=%p)=%d alt_sblines=%d\n"
\r
1045 "whichtree=%p treeindex=%d\n\n"
\r
1046 "Please contact <putty@projects.tartarus.org> "
\r
1047 "and pass on the above information.",
\r
1048 lineno, y, term->cols, term->rows,
\r
1049 term->scrollback, count234(term->scrollback),
\r
1050 term->screen, count234(term->screen),
\r
1051 term->alt_screen, count234(term->alt_screen), term->alt_sblines,
\r
1052 whichtree, treeindex);
\r
1054 assert(line != NULL);
\r
1056 resizeline(term, line, term->cols);
\r
1057 /* FIXME: should we sort the compressed scrollback out here? */
\r
1062 #define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
\r
1063 #define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
\r
1065 static void term_schedule_tblink(Terminal *term);
\r
1066 static void term_schedule_cblink(Terminal *term);
\r
1068 static void term_timer(void *ctx, long now)
\r
1070 Terminal *term = (Terminal *)ctx;
\r
1071 int update = FALSE;
\r
1073 if (term->tblink_pending && now - term->next_tblink >= 0) {
\r
1074 term->tblinker = !term->tblinker;
\r
1075 term->tblink_pending = FALSE;
\r
1076 term_schedule_tblink(term);
\r
1080 if (term->cblink_pending && now - term->next_cblink >= 0) {
\r
1081 term->cblinker = !term->cblinker;
\r
1082 term->cblink_pending = FALSE;
\r
1083 term_schedule_cblink(term);
\r
1087 if (term->in_vbell && now - term->vbell_end >= 0) {
\r
1088 term->in_vbell = FALSE;
\r
1093 (term->window_update_pending && now - term->next_update >= 0))
\r
1094 term_update(term);
\r
1097 static void term_schedule_update(Terminal *term)
\r
1099 if (!term->window_update_pending) {
\r
1100 term->window_update_pending = TRUE;
\r
1101 term->next_update = schedule_timer(UPDATE_DELAY, term_timer, term);
\r
1106 * Call this whenever the terminal window state changes, to queue
\r
1109 static void seen_disp_event(Terminal *term)
\r
1111 term->seen_disp_event = TRUE; /* for scrollback-reset-on-activity */
\r
1112 term_schedule_update(term);
\r
1116 * Call when the terminal's blinking-text settings change, or when
\r
1117 * a text blink has just occurred.
\r
1119 static void term_schedule_tblink(Terminal *term)
\r
1121 if (term->blink_is_real) {
\r
1122 if (!term->tblink_pending)
\r
1123 term->next_tblink = schedule_timer(TBLINK_DELAY, term_timer, term);
\r
1124 term->tblink_pending = TRUE;
\r
1126 term->tblinker = 1; /* reset when not in use */
\r
1127 term->tblink_pending = FALSE;
\r
1132 * Likewise with cursor blinks.
\r
1134 static void term_schedule_cblink(Terminal *term)
\r
1136 if (term->cfg.blink_cur && term->has_focus) {
\r
1137 if (!term->cblink_pending)
\r
1138 term->next_cblink = schedule_timer(CBLINK_DELAY, term_timer, term);
\r
1139 term->cblink_pending = TRUE;
\r
1141 term->cblinker = 1; /* reset when not in use */
\r
1142 term->cblink_pending = FALSE;
\r
1147 * Call to reset cursor blinking on new output.
\r
1149 static void term_reset_cblink(Terminal *term)
\r
1151 seen_disp_event(term);
\r
1152 term->cblinker = 1;
\r
1153 term->cblink_pending = FALSE;
\r
1154 term_schedule_cblink(term);
\r
1158 * Call to begin a visual bell.
\r
1160 static void term_schedule_vbell(Terminal *term, int already_started,
\r
1163 long ticks_already_gone;
\r
1165 if (already_started)
\r
1166 ticks_already_gone = GETTICKCOUNT() - startpoint;
\r
1168 ticks_already_gone = 0;
\r
1170 if (ticks_already_gone < VBELL_DELAY) {
\r
1171 term->in_vbell = TRUE;
\r
1172 term->vbell_end = schedule_timer(VBELL_DELAY - ticks_already_gone,
\r
1173 term_timer, term);
\r
1175 term->in_vbell = FALSE;
\r
1180 * Set up power-on settings for the terminal.
\r
1181 * If 'clear' is false, don't actually clear the primary screen, and
\r
1182 * position the cursor below the last non-blank line (scrolling if
\r
1185 static void power_on(Terminal *term, int clear)
\r
1187 term->alt_x = term->alt_y = 0;
\r
1188 term->savecurs.x = term->savecurs.y = 0;
\r
1189 term->alt_savecurs.x = term->alt_savecurs.y = 0;
\r
1190 term->alt_t = term->marg_t = 0;
\r
1191 if (term->rows != -1)
\r
1192 term->alt_b = term->marg_b = term->rows - 1;
\r
1194 term->alt_b = term->marg_b = 0;
\r
1195 if (term->cols != -1) {
\r
1197 for (i = 0; i < term->cols; i++)
\r
1198 term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
\r
1200 term->alt_om = term->dec_om = term->cfg.dec_om;
\r
1201 term->alt_ins = term->insert = FALSE;
\r
1202 term->alt_wnext = term->wrapnext =
\r
1203 term->save_wnext = term->alt_save_wnext = FALSE;
\r
1204 term->alt_wrap = term->wrap = term->cfg.wrap_mode;
\r
1205 term->alt_cset = term->cset = term->save_cset = term->alt_save_cset = 0;
\r
1206 term->alt_utf = term->utf = term->save_utf = term->alt_save_utf = 0;
\r
1207 term->utf_state = 0;
\r
1208 term->alt_sco_acs = term->sco_acs =
\r
1209 term->save_sco_acs = term->alt_save_sco_acs = 0;
\r
1210 term->cset_attr[0] = term->cset_attr[1] =
\r
1211 term->save_csattr = term->alt_save_csattr = CSET_ASCII;
\r
1213 term->in_vbell = FALSE;
\r
1214 term->cursor_on = 1;
\r
1215 term->big_cursor = 0;
\r
1216 term->default_attr = term->save_attr =
\r
1217 term->alt_save_attr = term->curr_attr = ATTR_DEFAULT;
\r
1218 term->term_editing = term->term_echoing = FALSE;
\r
1219 term->app_cursor_keys = term->cfg.app_cursor;
\r
1220 term->app_keypad_keys = term->cfg.app_keypad;
\r
1221 term->use_bce = term->cfg.bce;
\r
1222 term->blink_is_real = term->cfg.blinktext;
\r
1223 term->erase_char = term->basic_erase_char;
\r
1224 term->alt_which = 0;
\r
1225 term_print_finish(term);
\r
1226 term->xterm_mouse = 0;
\r
1227 set_raw_mouse_mode(term->frontend, FALSE);
\r
1230 for (i = 0; i < 256; i++)
\r
1231 term->wordness[i] = term->cfg.wordness[i];
\r
1233 if (term->screen) {
\r
1234 swap_screen(term, 1, FALSE, FALSE);
\r
1235 erase_lots(term, FALSE, TRUE, TRUE);
\r
1236 swap_screen(term, 0, FALSE, FALSE);
\r
1238 erase_lots(term, FALSE, TRUE, TRUE);
\r
1239 term->curs.y = find_last_nonempty_line(term, term->screen) + 1;
\r
1240 if (term->curs.y == term->rows) {
\r
1242 scroll(term, 0, term->rows - 1, 1, TRUE);
\r
1248 term_schedule_tblink(term);
\r
1249 term_schedule_cblink(term);
\r
1253 * Force a screen update.
\r
1255 void term_update(Terminal *term)
\r
1259 term->window_update_pending = FALSE;
\r
1261 ctx = get_ctx(term->frontend);
\r
1263 int need_sbar_update = term->seen_disp_event;
\r
1264 if (term->seen_disp_event && term->cfg.scroll_on_disp) {
\r
1265 term->disptop = 0; /* return to main screen */
\r
1266 term->seen_disp_event = 0;
\r
1267 need_sbar_update = TRUE;
\r
1270 if (need_sbar_update)
\r
1271 update_sbar(term);
\r
1272 do_paint(term, ctx, TRUE);
\r
1273 sys_cursor(term->frontend, term->curs.x, term->curs.y - term->disptop);
\r
1279 * Called from front end when a keypress occurs, to trigger
\r
1280 * anything magical that needs to happen in that situation.
\r
1282 void term_seen_key_event(Terminal *term)
\r
1285 * On any keypress, clear the bell overload mechanism
\r
1286 * completely, on the grounds that large numbers of
\r
1287 * beeps coming from deliberate key action are likely
\r
1288 * to be intended (e.g. beeps from filename completion
\r
1289 * blocking repeatedly).
\r
1291 term->beep_overloaded = FALSE;
\r
1292 while (term->beephead) {
\r
1293 struct beeptime *tmp = term->beephead;
\r
1294 term->beephead = tmp->next;
\r
1297 term->beeptail = NULL;
\r
1301 * Reset the scrollback on keypress, if we're doing that.
\r
1303 if (term->cfg.scroll_on_key) {
\r
1304 term->disptop = 0; /* return to main screen */
\r
1305 seen_disp_event(term);
\r
1310 * Same as power_on(), but an external function.
\r
1312 void term_pwron(Terminal *term, int clear)
\r
1314 power_on(term, clear);
\r
1315 if (term->ldisc) /* cause ldisc to notice changes */
\r
1316 ldisc_send(term->ldisc, NULL, 0, 0);
\r
1317 term->disptop = 0;
\r
1319 term_update(term);
\r
1322 static void set_erase_char(Terminal *term)
\r
1324 term->erase_char = term->basic_erase_char;
\r
1325 if (term->use_bce)
\r
1326 term->erase_char.attr = (term->curr_attr &
\r
1327 (ATTR_FGMASK | ATTR_BGMASK));
\r
1331 * When the user reconfigures us, we need to check the forbidden-
\r
1332 * alternate-screen config option, disable raw mouse mode if the
\r
1333 * user has disabled mouse reporting, and abandon a print job if
\r
1334 * the user has disabled printing.
\r
1336 void term_reconfig(Terminal *term, Config *cfg)
\r
1339 * Before adopting the new config, check all those terminal
\r
1340 * settings which control power-on defaults; and if they've
\r
1341 * changed, we will modify the current state as well as the
\r
1342 * default one. The full list is: Auto wrap mode, DEC Origin
\r
1343 * Mode, BCE, blinking text, character classes.
\r
1345 int reset_wrap, reset_decom, reset_bce, reset_tblink, reset_charclass;
\r
1348 reset_wrap = (term->cfg.wrap_mode != cfg->wrap_mode);
\r
1349 reset_decom = (term->cfg.dec_om != cfg->dec_om);
\r
1350 reset_bce = (term->cfg.bce != cfg->bce);
\r
1351 reset_tblink = (term->cfg.blinktext != cfg->blinktext);
\r
1352 reset_charclass = 0;
\r
1353 for (i = 0; i < lenof(term->cfg.wordness); i++)
\r
1354 if (term->cfg.wordness[i] != cfg->wordness[i])
\r
1355 reset_charclass = 1;
\r
1358 * If the bidi or shaping settings have changed, flush the bidi
\r
1359 * cache completely.
\r
1361 if (term->cfg.arabicshaping != cfg->arabicshaping ||
\r
1362 term->cfg.bidi != cfg->bidi) {
\r
1363 for (i = 0; i < term->bidi_cache_size; i++) {
\r
1364 sfree(term->pre_bidi_cache[i].chars);
\r
1365 sfree(term->post_bidi_cache[i].chars);
\r
1366 term->pre_bidi_cache[i].width = -1;
\r
1367 term->pre_bidi_cache[i].chars = NULL;
\r
1368 term->post_bidi_cache[i].width = -1;
\r
1369 term->post_bidi_cache[i].chars = NULL;
\r
1373 term->cfg = *cfg; /* STRUCTURE COPY */
\r
1376 term->alt_wrap = term->wrap = term->cfg.wrap_mode;
\r
1378 term->alt_om = term->dec_om = term->cfg.dec_om;
\r
1380 term->use_bce = term->cfg.bce;
\r
1381 set_erase_char(term);
\r
1383 if (reset_tblink) {
\r
1384 term->blink_is_real = term->cfg.blinktext;
\r
1386 if (reset_charclass)
\r
1387 for (i = 0; i < 256; i++)
\r
1388 term->wordness[i] = term->cfg.wordness[i];
\r
1390 if (term->cfg.no_alt_screen)
\r
1391 swap_screen(term, 0, FALSE, FALSE);
\r
1392 if (term->cfg.no_mouse_rep) {
\r
1393 term->xterm_mouse = 0;
\r
1394 set_raw_mouse_mode(term->frontend, 0);
\r
1396 if (term->cfg.no_remote_charset) {
\r
1397 term->cset_attr[0] = term->cset_attr[1] = CSET_ASCII;
\r
1398 term->sco_acs = term->alt_sco_acs = 0;
\r
1401 if (!*term->cfg.printer) {
\r
1402 term_print_finish(term);
\r
1404 term_schedule_tblink(term);
\r
1405 term_schedule_cblink(term);
\r
1409 * Clear the scrollback.
\r
1411 void term_clrsb(Terminal *term)
\r
1413 unsigned char *line;
\r
1414 term->disptop = 0;
\r
1415 while ((line = delpos234(term->scrollback, 0)) != NULL) {
\r
1416 sfree(line); /* this is compressed data, not a termline */
\r
1418 term->tempsblines = 0;
\r
1419 term->alt_sblines = 0;
\r
1420 update_sbar(term);
\r
1424 * Initialise the terminal.
\r
1426 Terminal *term_init(Config *mycfg, struct unicode_data *ucsdata,
\r
1432 * Allocate a new Terminal structure and initialise the fields
\r
1435 term = snew(Terminal);
\r
1436 term->frontend = frontend;
\r
1437 term->ucsdata = ucsdata;
\r
1438 term->cfg = *mycfg; /* STRUCTURE COPY */
\r
1439 term->logctx = NULL;
\r
1440 term->compatibility_level = TM_PUTTY;
\r
1441 strcpy(term->id_string, "\033[?6c");
\r
1442 term->cblink_pending = term->tblink_pending = FALSE;
\r
1443 term->paste_buffer = NULL;
\r
1444 term->paste_len = 0;
\r
1445 term->last_paste = 0;
\r
1446 bufchain_init(&term->inbuf);
\r
1447 bufchain_init(&term->printer_buf);
\r
1448 term->printing = term->only_printing = FALSE;
\r
1449 term->print_job = NULL;
\r
1450 term->vt52_mode = FALSE;
\r
1451 term->cr_lf_return = FALSE;
\r
1452 term->seen_disp_event = FALSE;
\r
1453 term->mouse_is_down = FALSE;
\r
1454 term->reset_132 = FALSE;
\r
1455 term->cblinker = term->tblinker = 0;
\r
1456 term->has_focus = 1;
\r
1457 term->repeat_off = FALSE;
\r
1458 term->termstate = TOPLEVEL;
\r
1459 term->selstate = NO_SELECTION;
\r
1460 term->curstype = 0;
\r
1462 term->screen = term->alt_screen = term->scrollback = NULL;
\r
1463 term->tempsblines = 0;
\r
1464 term->alt_sblines = 0;
\r
1465 term->disptop = 0;
\r
1466 term->disptext = NULL;
\r
1467 term->dispcursx = term->dispcursy = -1;
\r
1468 term->tabs = NULL;
\r
1470 term->rows = term->cols = -1;
\r
1471 power_on(term, TRUE);
\r
1472 term->beephead = term->beeptail = NULL;
\r
1473 #ifdef OPTIMISE_SCROLL
\r
1474 term->scrollhead = term->scrolltail = NULL;
\r
1475 #endif /* OPTIMISE_SCROLL */
\r
1477 term->lastbeep = FALSE;
\r
1478 term->beep_overloaded = FALSE;
\r
1479 term->attr_mask = 0xffffffff;
\r
1480 term->resize_fn = NULL;
\r
1481 term->resize_ctx = NULL;
\r
1482 term->in_term_out = FALSE;
\r
1483 term->ltemp = NULL;
\r
1484 term->ltemp_size = 0;
\r
1485 term->wcFrom = NULL;
\r
1486 term->wcTo = NULL;
\r
1487 term->wcFromTo_size = 0;
\r
1489 term->window_update_pending = FALSE;
\r
1491 term->bidi_cache_size = 0;
\r
1492 term->pre_bidi_cache = term->post_bidi_cache = NULL;
\r
1494 /* FULL-TERMCHAR */
\r
1495 term->basic_erase_char.chr = CSET_ASCII | ' ';
\r
1496 term->basic_erase_char.attr = ATTR_DEFAULT;
\r
1497 term->basic_erase_char.cc_next = 0;
\r
1498 term->erase_char = term->basic_erase_char;
\r
1503 void term_free(Terminal *term)
\r
1506 struct beeptime *beep;
\r
1509 while ((line = delpos234(term->scrollback, 0)) != NULL)
\r
1510 sfree(line); /* compressed data, not a termline */
\r
1511 freetree234(term->scrollback);
\r
1512 while ((line = delpos234(term->screen, 0)) != NULL)
\r
1514 freetree234(term->screen);
\r
1515 while ((line = delpos234(term->alt_screen, 0)) != NULL)
\r
1517 freetree234(term->alt_screen);
\r
1518 if (term->disptext) {
\r
1519 for (i = 0; i < term->rows; i++)
\r
1520 freeline(term->disptext[i]);
\r
1522 sfree(term->disptext);
\r
1523 while (term->beephead) {
\r
1524 beep = term->beephead;
\r
1525 term->beephead = beep->next;
\r
1528 bufchain_clear(&term->inbuf);
\r
1529 if(term->print_job)
\r
1530 printer_finish_job(term->print_job);
\r
1531 bufchain_clear(&term->printer_buf);
\r
1532 sfree(term->paste_buffer);
\r
1533 sfree(term->ltemp);
\r
1534 sfree(term->wcFrom);
\r
1535 sfree(term->wcTo);
\r
1537 for (i = 0; i < term->bidi_cache_size; i++) {
\r
1538 sfree(term->pre_bidi_cache[i].chars);
\r
1539 sfree(term->post_bidi_cache[i].chars);
\r
1541 sfree(term->pre_bidi_cache);
\r
1542 sfree(term->post_bidi_cache);
\r
1544 expire_timer_context(term);
\r
1550 * Set up the terminal for a given size.
\r
1552 void term_size(Terminal *term, int newrows, int newcols, int newsavelines)
\r
1555 termline **newdisp, *line;
\r
1556 int i, j, oldrows = term->rows;
\r
1558 int save_alt_which = term->alt_which;
\r
1560 if (newrows == term->rows && newcols == term->cols &&
\r
1561 newsavelines == term->savelines)
\r
1562 return; /* nothing to do */
\r
1564 /* Behave sensibly if we're given zero (or negative) rows/cols */
\r
1566 if (newrows < 1) newrows = 1;
\r
1567 if (newcols < 1) newcols = 1;
\r
1570 swap_screen(term, 0, FALSE, FALSE);
\r
1572 term->alt_t = term->marg_t = 0;
\r
1573 term->alt_b = term->marg_b = newrows - 1;
\r
1575 if (term->rows == -1) {
\r
1576 term->scrollback = newtree234(NULL);
\r
1577 term->screen = newtree234(NULL);
\r
1578 term->tempsblines = 0;
\r
1583 * Resize the screen and scrollback. We only need to shift
\r
1584 * lines around within our data structures, because lineptr()
\r
1585 * will take care of resizing each individual line if
\r
1588 * - If the new screen is longer, we shunt lines in from temporary
\r
1589 * scrollback if possible, otherwise we add new blank lines at
\r
1592 * - If the new screen is shorter, we remove any blank lines at
\r
1593 * the bottom if possible, otherwise shunt lines above the cursor
\r
1594 * to scrollback if possible, otherwise delete lines below the
\r
1597 * - Then, if the new scrollback length is less than the
\r
1598 * amount of scrollback we actually have, we must throw some
\r
1601 sblen = count234(term->scrollback);
\r
1602 /* Do this loop to expand the screen if newrows > rows */
\r
1603 assert(term->rows == count234(term->screen));
\r
1604 while (term->rows < newrows) {
\r
1605 if (term->tempsblines > 0) {
\r
1606 unsigned char *cline;
\r
1607 /* Insert a line from the scrollback at the top of the screen. */
\r
1608 assert(sblen >= term->tempsblines);
\r
1609 cline = delpos234(term->scrollback, --sblen);
\r
1610 line = decompressline(cline, NULL);
\r
1612 line->temporary = FALSE; /* reconstituted line is now real */
\r
1613 term->tempsblines -= 1;
\r
1614 addpos234(term->screen, line, 0);
\r
1615 term->curs.y += 1;
\r
1616 term->savecurs.y += 1;
\r
1618 term->alt_savecurs.y += 1;
\r
1620 /* Add a new blank line at the bottom of the screen. */
\r
1621 line = newline(term, newcols, FALSE);
\r
1622 addpos234(term->screen, line, count234(term->screen));
\r
1626 /* Do this loop to shrink the screen if newrows < rows */
\r
1627 while (term->rows > newrows) {
\r
1628 if (term->curs.y < term->rows - 1) {
\r
1629 /* delete bottom row, unless it contains the cursor */
\r
1630 sfree(delpos234(term->screen, term->rows - 1));
\r
1632 /* push top row to scrollback */
\r
1633 line = delpos234(term->screen, 0);
\r
1634 addpos234(term->scrollback, compressline(line), sblen++);
\r
1636 term->tempsblines += 1;
\r
1637 term->curs.y -= 1;
\r
1638 term->savecurs.y -= 1;
\r
1640 term->alt_savecurs.y -= 1;
\r
1644 assert(term->rows == newrows);
\r
1645 assert(count234(term->screen) == newrows);
\r
1647 /* Delete any excess lines from the scrollback. */
\r
1648 while (sblen > newsavelines) {
\r
1649 line = delpos234(term->scrollback, 0);
\r
1653 if (sblen < term->tempsblines)
\r
1654 term->tempsblines = sblen;
\r
1655 assert(count234(term->scrollback) <= newsavelines);
\r
1656 assert(count234(term->scrollback) >= term->tempsblines);
\r
1657 term->disptop = 0;
\r
1659 /* Make a new displayed text buffer. */
\r
1660 newdisp = snewn(newrows, termline *);
\r
1661 for (i = 0; i < newrows; i++) {
\r
1662 newdisp[i] = newline(term, newcols, FALSE);
\r
1663 for (j = 0; j < newcols; j++)
\r
1664 newdisp[i]->chars[j].attr = ATTR_INVALID;
\r
1666 if (term->disptext) {
\r
1667 for (i = 0; i < oldrows; i++)
\r
1668 freeline(term->disptext[i]);
\r
1670 sfree(term->disptext);
\r
1671 term->disptext = newdisp;
\r
1672 term->dispcursx = term->dispcursy = -1;
\r
1674 /* Make a new alternate screen. */
\r
1675 newalt = newtree234(NULL);
\r
1676 for (i = 0; i < newrows; i++) {
\r
1677 line = newline(term, newcols, TRUE);
\r
1678 addpos234(newalt, line, i);
\r
1680 if (term->alt_screen) {
\r
1681 while (NULL != (line = delpos234(term->alt_screen, 0)))
\r
1683 freetree234(term->alt_screen);
\r
1685 term->alt_screen = newalt;
\r
1686 term->alt_sblines = 0;
\r
1688 term->tabs = sresize(term->tabs, newcols, unsigned char);
\r
1691 for (i = (term->cols > 0 ? term->cols : 0); i < newcols; i++)
\r
1692 term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
\r
1695 /* Check that the cursor positions are still valid. */
\r
1696 if (term->savecurs.y < 0)
\r
1697 term->savecurs.y = 0;
\r
1698 if (term->savecurs.y >= newrows)
\r
1699 term->savecurs.y = newrows - 1;
\r
1700 if (term->savecurs.x >= newcols)
\r
1701 term->savecurs.x = newcols - 1;
\r
1702 if (term->alt_savecurs.y < 0)
\r
1703 term->alt_savecurs.y = 0;
\r
1704 if (term->alt_savecurs.y >= newrows)
\r
1705 term->alt_savecurs.y = newrows - 1;
\r
1706 if (term->alt_savecurs.x >= newcols)
\r
1707 term->alt_savecurs.x = newcols - 1;
\r
1708 if (term->curs.y < 0)
\r
1710 if (term->curs.y >= newrows)
\r
1711 term->curs.y = newrows - 1;
\r
1712 if (term->curs.x >= newcols)
\r
1713 term->curs.x = newcols - 1;
\r
1714 if (term->alt_y < 0)
\r
1716 if (term->alt_y >= newrows)
\r
1717 term->alt_y = newrows - 1;
\r
1718 if (term->alt_x >= newcols)
\r
1719 term->alt_x = newcols - 1;
\r
1720 term->alt_x = term->alt_y = 0;
\r
1721 term->wrapnext = term->alt_wnext = FALSE;
\r
1723 term->rows = newrows;
\r
1724 term->cols = newcols;
\r
1725 term->savelines = newsavelines;
\r
1727 swap_screen(term, save_alt_which, FALSE, FALSE);
\r
1729 update_sbar(term);
\r
1730 term_update(term);
\r
1731 if (term->resize_fn)
\r
1732 term->resize_fn(term->resize_ctx, term->cols, term->rows);
\r
1736 * Hand a function and context pointer to the terminal which it can
\r
1737 * use to notify a back end of resizes.
\r
1739 void term_provide_resize_fn(Terminal *term,
\r
1740 void (*resize_fn)(void *, int, int),
\r
1743 term->resize_fn = resize_fn;
\r
1744 term->resize_ctx = resize_ctx;
\r
1745 if (resize_fn && term->cols > 0 && term->rows > 0)
\r
1746 resize_fn(resize_ctx, term->cols, term->rows);
\r
1749 /* Find the bottom line on the screen that has any content.
\r
1750 * If only the top line has content, returns 0.
\r
1751 * If no lines have content, return -1.
\r
1753 static int find_last_nonempty_line(Terminal * term, tree234 * screen)
\r
1756 for (i = count234(screen) - 1; i >= 0; i--) {
\r
1757 termline *line = index234(screen, i);
\r
1759 for (j = 0; j < line->cols; j++)
\r
1760 if (!termchars_equal(&line->chars[j], &term->erase_char))
\r
1762 if (j != line->cols) break;
\r
1768 * Swap screens. If `reset' is TRUE and we have been asked to
\r
1769 * switch to the alternate screen, we must bring most of its
\r
1770 * configuration from the main screen and erase the contents of the
\r
1771 * alternate screen completely. (This is even true if we're already
\r
1772 * on it! Blame xterm.)
\r
1774 static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos)
\r
1781 reset = FALSE; /* do no weird resetting if which==0 */
\r
1783 if (which != term->alt_which) {
\r
1784 term->alt_which = which;
\r
1786 ttr = term->alt_screen;
\r
1787 term->alt_screen = term->screen;
\r
1788 term->screen = ttr;
\r
1789 term->alt_sblines = find_last_nonempty_line(term, term->alt_screen) + 1;
\r
1791 if (!reset && !keep_cur_pos)
\r
1792 term->curs.x = term->alt_x;
\r
1795 if (!reset && !keep_cur_pos)
\r
1796 term->curs.y = term->alt_y;
\r
1799 if (!reset) term->marg_t = term->alt_t;
\r
1802 if (!reset) term->marg_b = term->alt_b;
\r
1805 if (!reset) term->dec_om = term->alt_om;
\r
1808 if (!reset) term->wrap = term->alt_wrap;
\r
1809 term->alt_wrap = t;
\r
1810 t = term->wrapnext;
\r
1811 if (!reset) term->wrapnext = term->alt_wnext;
\r
1812 term->alt_wnext = t;
\r
1814 if (!reset) term->insert = term->alt_ins;
\r
1815 term->alt_ins = t;
\r
1817 if (!reset) term->cset = term->alt_cset;
\r
1818 term->alt_cset = t;
\r
1820 if (!reset) term->utf = term->alt_utf;
\r
1821 term->alt_utf = t;
\r
1822 t = term->sco_acs;
\r
1823 if (!reset) term->sco_acs = term->alt_sco_acs;
\r
1824 term->alt_sco_acs = t;
\r
1826 tp = term->savecurs;
\r
1827 if (!reset && !keep_cur_pos)
\r
1828 term->savecurs = term->alt_savecurs;
\r
1829 term->alt_savecurs = tp;
\r
1830 t = term->save_cset;
\r
1831 if (!reset && !keep_cur_pos)
\r
1832 term->save_cset = term->alt_save_cset;
\r
1833 term->alt_save_cset = t;
\r
1834 t = term->save_csattr;
\r
1835 if (!reset && !keep_cur_pos)
\r
1836 term->save_csattr = term->alt_save_csattr;
\r
1837 term->alt_save_csattr = t;
\r
1838 t = term->save_attr;
\r
1839 if (!reset && !keep_cur_pos)
\r
1840 term->save_attr = term->alt_save_attr;
\r
1841 term->alt_save_attr = t;
\r
1842 t = term->save_utf;
\r
1843 if (!reset && !keep_cur_pos)
\r
1844 term->save_utf = term->alt_save_utf;
\r
1845 term->alt_save_utf = t;
\r
1846 t = term->save_wnext;
\r
1847 if (!reset && !keep_cur_pos)
\r
1848 term->save_wnext = term->alt_save_wnext;
\r
1849 term->alt_save_wnext = t;
\r
1850 t = term->save_sco_acs;
\r
1851 if (!reset && !keep_cur_pos)
\r
1852 term->save_sco_acs = term->alt_save_sco_acs;
\r
1853 term->alt_save_sco_acs = t;
\r
1856 if (reset && term->screen) {
\r
1858 * Yes, this _is_ supposed to honour background-colour-erase.
\r
1860 erase_lots(term, FALSE, TRUE, TRUE);
\r
1865 * Update the scroll bar.
\r
1867 static void update_sbar(Terminal *term)
\r
1869 int nscroll = sblines(term);
\r
1870 set_sbar(term->frontend, nscroll + term->rows,
\r
1871 nscroll + term->disptop, term->rows);
\r
1875 * Check whether the region bounded by the two pointers intersects
\r
1876 * the scroll region, and de-select the on-screen selection if so.
\r
1878 static void check_selection(Terminal *term, pos from, pos to)
\r
1880 if (poslt(from, term->selend) && poslt(term->selstart, to))
\r
1885 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
\r
1886 * for backward.) `sb' is TRUE if the scrolling is permitted to
\r
1887 * affect the scrollback buffer.
\r
1889 static void scroll(Terminal *term, int topline, int botline, int lines, int sb)
\r
1893 #ifdef OPTIMISE_SCROLL
\r
1894 int olddisptop, shift;
\r
1895 #endif /* OPTIMISE_SCROLL */
\r
1897 if (topline != 0 || term->alt_which != 0)
\r
1900 #ifdef OPTIMISE_SCROLL
\r
1901 olddisptop = term->disptop;
\r
1903 #endif /* OPTIMISE_SCROLL */
\r
1905 while (lines < 0) {
\r
1906 line = delpos234(term->screen, botline);
\r
1907 resizeline(term, line, term->cols);
\r
1908 for (i = 0; i < term->cols; i++)
\r
1909 copy_termchar(line, i, &term->erase_char);
\r
1910 line->lattr = LATTR_NORM;
\r
1911 addpos234(term->screen, line, topline);
\r
1913 if (term->selstart.y >= topline && term->selstart.y <= botline) {
\r
1914 term->selstart.y++;
\r
1915 if (term->selstart.y > botline) {
\r
1916 term->selstart.y = botline + 1;
\r
1917 term->selstart.x = 0;
\r
1920 if (term->selend.y >= topline && term->selend.y <= botline) {
\r
1922 if (term->selend.y > botline) {
\r
1923 term->selend.y = botline + 1;
\r
1924 term->selend.x = 0;
\r
1931 while (lines > 0) {
\r
1932 line = delpos234(term->screen, topline);
\r
1933 #ifdef TERM_CC_DIAGS
\r
1936 if (sb && term->savelines > 0) {
\r
1937 int sblen = count234(term->scrollback);
\r
1939 * We must add this line to the scrollback. We'll
\r
1940 * remove a line from the top of the scrollback if
\r
1941 * the scrollback is full.
\r
1943 if (sblen == term->savelines) {
\r
1944 unsigned char *cline;
\r
1947 cline = delpos234(term->scrollback, 0);
\r
1950 term->tempsblines += 1;
\r
1952 addpos234(term->scrollback, compressline(line), sblen);
\r
1954 /* now `line' itself can be reused as the bottom line */
\r
1957 * If the user is currently looking at part of the
\r
1958 * scrollback, and they haven't enabled any options
\r
1959 * that are going to reset the scrollback as a
\r
1960 * result of this movement, then the chances are
\r
1961 * they'd like to keep looking at the same line. So
\r
1962 * we move their viewpoint at the same rate as the
\r
1963 * scroll, at least until their viewpoint hits the
\r
1964 * top end of the scrollback buffer, at which point
\r
1965 * we don't have the choice any more.
\r
1967 * Thanks to Jan Holmen Holsten for the idea and
\r
1968 * initial implementation.
\r
1970 if (term->disptop > -term->savelines && term->disptop < 0)
\r
1973 resizeline(term, line, term->cols);
\r
1974 for (i = 0; i < term->cols; i++)
\r
1975 copy_termchar(line, i, &term->erase_char);
\r
1976 line->lattr = LATTR_NORM;
\r
1977 addpos234(term->screen, line, botline);
\r
1980 * If the selection endpoints move into the scrollback,
\r
1981 * we keep them moving until they hit the top. However,
\r
1982 * of course, if the line _hasn't_ moved into the
\r
1983 * scrollback then we don't do this, and cut them off
\r
1984 * at the top of the scroll region.
\r
1986 * This applies to selstart and selend (for an existing
\r
1987 * selection), and also selanchor (for one being
\r
1988 * selected as we speak).
\r
1990 seltop = sb ? -term->savelines : topline;
\r
1992 if (term->selstate != NO_SELECTION) {
\r
1993 if (term->selstart.y >= seltop &&
\r
1994 term->selstart.y <= botline) {
\r
1995 term->selstart.y--;
\r
1996 if (term->selstart.y < seltop) {
\r
1997 term->selstart.y = seltop;
\r
1998 term->selstart.x = 0;
\r
2001 if (term->selend.y >= seltop && term->selend.y <= botline) {
\r
2003 if (term->selend.y < seltop) {
\r
2004 term->selend.y = seltop;
\r
2005 term->selend.x = 0;
\r
2008 if (term->selanchor.y >= seltop &&
\r
2009 term->selanchor.y <= botline) {
\r
2010 term->selanchor.y--;
\r
2011 if (term->selanchor.y < seltop) {
\r
2012 term->selanchor.y = seltop;
\r
2013 term->selanchor.x = 0;
\r
2021 #ifdef OPTIMISE_SCROLL
\r
2022 shift += term->disptop - olddisptop;
\r
2023 if (shift < term->rows && shift > -term->rows && shift != 0)
\r
2024 scroll_display(term, topline, botline, shift);
\r
2025 #endif /* OPTIMISE_SCROLL */
\r
2028 #ifdef OPTIMISE_SCROLL
\r
2030 * Add a scroll of a region on the screen into the pending scroll list.
\r
2031 * `lines' is +ve for scrolling forward, -ve for backward.
\r
2033 * If the scroll is on the same area as the last scroll in the list,
\r
2036 static void save_scroll(Terminal *term, int topline, int botline, int lines)
\r
2038 struct scrollregion *newscroll;
\r
2039 if (term->scrolltail &&
\r
2040 term->scrolltail->topline == topline &&
\r
2041 term->scrolltail->botline == botline) {
\r
2042 term->scrolltail->lines += lines;
\r
2044 newscroll = snew(struct scrollregion);
\r
2045 newscroll->topline = topline;
\r
2046 newscroll->botline = botline;
\r
2047 newscroll->lines = lines;
\r
2048 newscroll->next = NULL;
\r
2050 if (!term->scrollhead)
\r
2051 term->scrollhead = newscroll;
\r
2053 term->scrolltail->next = newscroll;
\r
2054 term->scrolltail = newscroll;
\r
2059 * Scroll the physical display, and our conception of it in disptext.
\r
2061 static void scroll_display(Terminal *term, int topline, int botline, int lines)
\r
2063 int distance, nlines, i, j;
\r
2065 distance = lines > 0 ? lines : -lines;
\r
2066 nlines = botline - topline + 1 - distance;
\r
2068 for (i = 0; i < nlines; i++)
\r
2069 for (j = 0; j < term->cols; j++)
\r
2070 copy_termchar(term->disptext[i], j,
\r
2071 term->disptext[i+distance]->chars+j);
\r
2072 if (term->dispcursy >= 0 &&
\r
2073 term->dispcursy >= topline + distance &&
\r
2074 term->dispcursy < topline + distance + nlines)
\r
2075 term->dispcursy -= distance;
\r
2076 for (i = 0; i < distance; i++)
\r
2077 for (j = 0; j < term->cols; j++)
\r
2078 term->disptext[nlines+i]->chars[j].attr |= ATTR_INVALID;
\r
2080 for (i = nlines; i-- ;)
\r
2081 for (j = 0; j < term->cols; j++)
\r
2082 copy_termchar(term->disptext[i+distance], j,
\r
2083 term->disptext[i]->chars+j);
\r
2084 if (term->dispcursy >= 0 &&
\r
2085 term->dispcursy >= topline &&
\r
2086 term->dispcursy < topline + nlines)
\r
2087 term->dispcursy += distance;
\r
2088 for (i = 0; i < distance; i++)
\r
2089 for (j = 0; j < term->cols; j++)
\r
2090 term->disptext[i]->chars[j].attr |= ATTR_INVALID;
\r
2092 save_scroll(term, topline, botline, lines);
\r
2094 #endif /* OPTIMISE_SCROLL */
\r
2097 * Move the cursor to a given position, clipping at boundaries. We
\r
2098 * may or may not want to clip at the scroll margin: marg_clip is 0
\r
2099 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
\r
2100 * even _being_ outside the margins.
\r
2102 static void move(Terminal *term, int x, int y, int marg_clip)
\r
2106 if (x >= term->cols)
\r
2107 x = term->cols - 1;
\r
2109 if ((term->curs.y >= term->marg_t || marg_clip == 2) &&
\r
2112 if ((term->curs.y <= term->marg_b || marg_clip == 2) &&
\r
2118 if (y >= term->rows)
\r
2119 y = term->rows - 1;
\r
2122 term->wrapnext = FALSE;
\r
2126 * Save or restore the cursor and SGR mode.
\r
2128 static void save_cursor(Terminal *term, int save)
\r
2131 term->savecurs = term->curs;
\r
2132 term->save_attr = term->curr_attr;
\r
2133 term->save_cset = term->cset;
\r
2134 term->save_utf = term->utf;
\r
2135 term->save_wnext = term->wrapnext;
\r
2136 term->save_csattr = term->cset_attr[term->cset];
\r
2137 term->save_sco_acs = term->sco_acs;
\r
2139 term->curs = term->savecurs;
\r
2140 /* Make sure the window hasn't shrunk since the save */
\r
2141 if (term->curs.x >= term->cols)
\r
2142 term->curs.x = term->cols - 1;
\r
2143 if (term->curs.y >= term->rows)
\r
2144 term->curs.y = term->rows - 1;
\r
2146 term->curr_attr = term->save_attr;
\r
2147 term->cset = term->save_cset;
\r
2148 term->utf = term->save_utf;
\r
2149 term->wrapnext = term->save_wnext;
\r
2151 * wrapnext might reset to False if the x position is no
\r
2152 * longer at the rightmost edge.
\r
2154 if (term->wrapnext && term->curs.x < term->cols-1)
\r
2155 term->wrapnext = FALSE;
\r
2156 term->cset_attr[term->cset] = term->save_csattr;
\r
2157 term->sco_acs = term->save_sco_acs;
\r
2158 set_erase_char(term);
\r
2163 * This function is called before doing _anything_ which affects
\r
2164 * only part of a line of text. It is used to mark the boundary
\r
2165 * between two character positions, and it indicates that some sort
\r
2166 * of effect is going to happen on only one side of that boundary.
\r
2168 * The effect of this function is to check whether a CJK
\r
2169 * double-width character is straddling the boundary, and to remove
\r
2170 * it and replace it with two spaces if so. (Of course, one or
\r
2171 * other of those spaces is then likely to be replaced with
\r
2172 * something else again, as a result of whatever happens next.)
\r
2174 * Also, if the boundary is at the right-hand _edge_ of the screen,
\r
2175 * it implies something deliberate is being done to the rightmost
\r
2176 * column position; hence we must clear LATTR_WRAPPED2.
\r
2178 * The input to the function is the coordinates of the _second_
\r
2179 * character of the pair.
\r
2181 static void check_boundary(Terminal *term, int x, int y)
\r
2185 /* Validate input coordinates, just in case. */
\r
2186 if (x == 0 || x > term->cols)
\r
2189 ldata = scrlineptr(y);
\r
2190 if (x == term->cols) {
\r
2191 ldata->lattr &= ~LATTR_WRAPPED2;
\r
2193 if (ldata->chars[x].chr == UCSWIDE) {
\r
2194 clear_cc(ldata, x-1);
\r
2195 clear_cc(ldata, x);
\r
2196 ldata->chars[x-1].chr = ' ' | CSET_ASCII;
\r
2197 ldata->chars[x] = ldata->chars[x-1];
\r
2203 * Erase a large portion of the screen: the whole screen, or the
\r
2204 * whole line, or parts thereof.
\r
2206 static void erase_lots(Terminal *term,
\r
2207 int line_only, int from_begin, int to_end)
\r
2211 int erasing_lines_from_top = 0;
\r
2214 start.y = term->curs.y;
\r
2216 end.y = term->curs.y + 1;
\r
2218 erase_lattr = FALSE;
\r
2222 end.y = term->rows;
\r
2224 erase_lattr = TRUE;
\r
2226 if (!from_begin) {
\r
2227 start = term->curs;
\r
2233 if (!from_begin || !to_end)
\r
2234 check_boundary(term, term->curs.x, term->curs.y);
\r
2235 check_selection(term, start, end);
\r
2237 /* Clear screen also forces a full window redraw, just in case. */
\r
2238 if (start.y == 0 && start.x == 0 && end.y == term->rows)
\r
2239 term_invalidate(term);
\r
2241 /* Lines scrolled away shouldn't be brought back on if the terminal
\r
2243 if (start.y == 0 && start.x == 0 && end.x == 0 && erase_lattr)
\r
2244 erasing_lines_from_top = 1;
\r
2246 if (term->cfg.erase_to_scrollback && erasing_lines_from_top) {
\r
2247 /* If it's a whole number of lines, starting at the top, and
\r
2248 * we're fully erasing them, erase by scrolling and keep the
\r
2249 * lines in the scrollback. */
\r
2250 int scrolllines = end.y;
\r
2251 if (end.y == term->rows) {
\r
2252 /* Shrink until we find a non-empty row.*/
\r
2253 scrolllines = find_last_nonempty_line(term, term->screen) + 1;
\r
2255 if (scrolllines > 0)
\r
2256 scroll(term, 0, scrolllines - 1, scrolllines, TRUE);
\r
2258 termline *ldata = scrlineptr(start.y);
\r
2259 while (poslt(start, end)) {
\r
2260 if (start.x == term->cols) {
\r
2262 ldata->lattr &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
\r
2264 ldata->lattr = LATTR_NORM;
\r
2266 copy_termchar(ldata, start.x, &term->erase_char);
\r
2268 if (incpos(start) && start.y < term->rows) {
\r
2269 ldata = scrlineptr(start.y);
\r
2274 /* After an erase of lines from the top of the screen, we shouldn't
\r
2275 * bring the lines back again if the terminal enlarges (since the user or
\r
2276 * application has explictly thrown them away). */
\r
2277 if (erasing_lines_from_top && !(term->alt_which))
\r
2278 term->tempsblines = 0;
\r
2282 * Insert or delete characters within the current line. n is +ve if
\r
2283 * insertion is desired, and -ve for deletion.
\r
2285 static void insch(Terminal *term, int n)
\r
2287 int dir = (n < 0 ? -1 : +1);
\r
2292 n = (n < 0 ? -n : n);
\r
2293 if (n > term->cols - term->curs.x)
\r
2294 n = term->cols - term->curs.x;
\r
2295 m = term->cols - term->curs.x - n;
\r
2296 cursplus.y = term->curs.y;
\r
2297 cursplus.x = term->curs.x + n;
\r
2298 check_selection(term, term->curs, cursplus);
\r
2299 check_boundary(term, term->curs.x, term->curs.y);
\r
2301 check_boundary(term, term->curs.x + n, term->curs.y);
\r
2302 ldata = scrlineptr(term->curs.y);
\r
2304 for (j = 0; j < m; j++)
\r
2305 move_termchar(ldata,
\r
2306 ldata->chars + term->curs.x + j,
\r
2307 ldata->chars + term->curs.x + j + n);
\r
2309 copy_termchar(ldata, term->curs.x + m++, &term->erase_char);
\r
2311 for (j = m; j-- ;)
\r
2312 move_termchar(ldata,
\r
2313 ldata->chars + term->curs.x + j + n,
\r
2314 ldata->chars + term->curs.x + j);
\r
2316 copy_termchar(ldata, term->curs.x + n, &term->erase_char);
\r
2321 * Toggle terminal mode `mode' to state `state'. (`query' indicates
\r
2322 * whether the mode is a DEC private one or a normal one.)
\r
2324 static void toggle_mode(Terminal *term, int mode, int query, int state)
\r
2328 case 1: /* DECCKM: application cursor keys */
\r
2329 term->app_cursor_keys = state;
\r
2331 case 2: /* DECANM: VT52 mode */
\r
2332 term->vt52_mode = !state;
\r
2333 if (term->vt52_mode) {
\r
2334 term->blink_is_real = FALSE;
\r
2335 term->vt52_bold = FALSE;
\r
2337 term->blink_is_real = term->cfg.blinktext;
\r
2339 term_schedule_tblink(term);
\r
2341 case 3: /* DECCOLM: 80/132 columns */
\r
2343 if (!term->cfg.no_remote_resize)
\r
2344 request_resize(term->frontend, state ? 132 : 80, term->rows);
\r
2345 term->reset_132 = state;
\r
2346 term->alt_t = term->marg_t = 0;
\r
2347 term->alt_b = term->marg_b = term->rows - 1;
\r
2348 move(term, 0, 0, 0);
\r
2349 erase_lots(term, FALSE, TRUE, TRUE);
\r
2351 case 5: /* DECSCNM: reverse video */
\r
2353 * Toggle reverse video. If we receive an OFF within the
\r
2354 * visual bell timeout period after an ON, we trigger an
\r
2355 * effective visual bell, so that ESC[?5hESC[?5l will
\r
2356 * always be an actually _visible_ visual bell.
\r
2358 if (term->rvideo && !state) {
\r
2359 /* This is an OFF, so set up a vbell */
\r
2360 term_schedule_vbell(term, TRUE, term->rvbell_startpoint);
\r
2361 } else if (!term->rvideo && state) {
\r
2362 /* This is an ON, so we notice the time and save it. */
\r
2363 term->rvbell_startpoint = GETTICKCOUNT();
\r
2365 term->rvideo = state;
\r
2366 seen_disp_event(term);
\r
2368 case 6: /* DECOM: DEC origin mode */
\r
2369 term->dec_om = state;
\r
2371 case 7: /* DECAWM: auto wrap */
\r
2372 term->wrap = state;
\r
2374 case 8: /* DECARM: auto key repeat */
\r
2375 term->repeat_off = !state;
\r
2377 case 10: /* DECEDM: set local edit mode */
\r
2378 term->term_editing = state;
\r
2379 if (term->ldisc) /* cause ldisc to notice changes */
\r
2380 ldisc_send(term->ldisc, NULL, 0, 0);
\r
2382 case 25: /* DECTCEM: enable/disable cursor */
\r
2383 compatibility2(OTHER, VT220);
\r
2384 term->cursor_on = state;
\r
2385 seen_disp_event(term);
\r
2387 case 47: /* alternate screen */
\r
2388 compatibility(OTHER);
\r
2390 swap_screen(term, term->cfg.no_alt_screen ? 0 : state, FALSE, FALSE);
\r
2391 term->disptop = 0;
\r
2393 case 1000: /* xterm mouse 1 (normal) */
\r
2394 term->xterm_mouse = state ? 1 : 0;
\r
2395 set_raw_mouse_mode(term->frontend, state);
\r
2397 case 1002: /* xterm mouse 2 (inc. button drags) */
\r
2398 term->xterm_mouse = state ? 2 : 0;
\r
2399 set_raw_mouse_mode(term->frontend, state);
\r
2401 case 1047: /* alternate screen */
\r
2402 compatibility(OTHER);
\r
2404 swap_screen(term, term->cfg.no_alt_screen ? 0 : state, TRUE, TRUE);
\r
2405 term->disptop = 0;
\r
2407 case 1048: /* save/restore cursor */
\r
2408 if (!term->cfg.no_alt_screen)
\r
2409 save_cursor(term, state);
\r
2410 if (!state) seen_disp_event(term);
\r
2412 case 1049: /* cursor & alternate screen */
\r
2413 if (state && !term->cfg.no_alt_screen)
\r
2414 save_cursor(term, state);
\r
2415 if (!state) seen_disp_event(term);
\r
2416 compatibility(OTHER);
\r
2418 swap_screen(term, term->cfg.no_alt_screen ? 0 : state, TRUE, FALSE);
\r
2419 if (!state && !term->cfg.no_alt_screen)
\r
2420 save_cursor(term, state);
\r
2421 term->disptop = 0;
\r
2425 case 4: /* IRM: set insert mode */
\r
2426 compatibility(VT102);
\r
2427 term->insert = state;
\r
2429 case 12: /* SRM: set echo mode */
\r
2430 term->term_echoing = !state;
\r
2431 if (term->ldisc) /* cause ldisc to notice changes */
\r
2432 ldisc_send(term->ldisc, NULL, 0, 0);
\r
2434 case 20: /* LNM: Return sends ... */
\r
2435 term->cr_lf_return = state;
\r
2437 case 34: /* WYULCURM: Make cursor BIG */
\r
2438 compatibility2(OTHER, VT220);
\r
2439 term->big_cursor = !state;
\r
2444 * Process an OSC sequence: set window title or icon name.
\r
2446 static void do_osc(Terminal *term)
\r
2448 if (term->osc_w) {
\r
2449 while (term->osc_strlen--)
\r
2450 term->wordness[(unsigned char)
\r
2451 term->osc_string[term->osc_strlen]] = term->esc_args[0];
\r
2453 term->osc_string[term->osc_strlen] = '\0';
\r
2454 switch (term->esc_args[0]) {
\r
2457 if (!term->cfg.no_remote_wintitle)
\r
2458 set_icon(term->frontend, term->osc_string);
\r
2459 if (term->esc_args[0] == 1)
\r
2461 /* fall through: parameter 0 means set both */
\r
2464 if (!term->cfg.no_remote_wintitle)
\r
2465 set_title(term->frontend, term->osc_string);
\r
2472 * ANSI printing routines.
\r
2474 static void term_print_setup(Terminal *term)
\r
2476 bufchain_clear(&term->printer_buf);
\r
2477 term->print_job = printer_start_job(term->cfg.printer);
\r
2479 static void term_print_flush(Terminal *term)
\r
2484 while ((size = bufchain_size(&term->printer_buf)) > 5) {
\r
2485 bufchain_prefix(&term->printer_buf, &data, &len);
\r
2488 printer_job_data(term->print_job, data, len);
\r
2489 bufchain_consume(&term->printer_buf, len);
\r
2492 static void term_print_finish(Terminal *term)
\r
2498 if (!term->printing && !term->only_printing)
\r
2499 return; /* we need do nothing */
\r
2501 term_print_flush(term);
\r
2502 while ((size = bufchain_size(&term->printer_buf)) > 0) {
\r
2503 bufchain_prefix(&term->printer_buf, &data, &len);
\r
2504 c = *(char *)data;
\r
2505 if (c == '\033' || c == '\233') {
\r
2506 bufchain_consume(&term->printer_buf, size);
\r
2509 printer_job_data(term->print_job, &c, 1);
\r
2510 bufchain_consume(&term->printer_buf, 1);
\r
2513 printer_finish_job(term->print_job);
\r
2514 term->print_job = NULL;
\r
2515 term->printing = term->only_printing = FALSE;
\r
2519 * Remove everything currently in `inbuf' and stick it up on the
\r
2520 * in-memory display. There's a big state machine in here to
\r
2521 * process escape sequences...
\r
2523 static void term_out(Terminal *term)
\r
2527 unsigned char localbuf[256], *chars;
\r
2532 chars = NULL; /* placate compiler warnings */
\r
2533 while (nchars > 0 || unget != -1 || bufchain_size(&term->inbuf) > 0) {
\r
2534 if (unget == -1) {
\r
2535 if (nchars == 0) {
\r
2537 bufchain_prefix(&term->inbuf, &ret, &nchars);
\r
2538 if (nchars > sizeof(localbuf))
\r
2539 nchars = sizeof(localbuf);
\r
2540 memcpy(localbuf, ret, nchars);
\r
2541 bufchain_consume(&term->inbuf, nchars);
\r
2543 assert(chars != NULL);
\r
2549 * Optionally log the session traffic to a file. Useful for
\r
2550 * debugging and possibly also useful for actual logging.
\r
2552 if (term->cfg.logtype == LGTYP_DEBUG && term->logctx)
\r
2553 logtraffic(term->logctx, (unsigned char) c, LGTYP_DEBUG);
\r
2559 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
\r
2560 * be able to display 8-bit characters, but I'll let that go 'cause
\r
2565 * If we're printing, add the character to the printer
\r
2568 if (term->printing) {
\r
2569 bufchain_add(&term->printer_buf, &c, 1);
\r
2572 * If we're in print-only mode, we use a much simpler
\r
2573 * state machine designed only to recognise the ESC[4i
\r
2574 * termination sequence.
\r
2576 if (term->only_printing) {
\r
2578 term->print_state = 1;
\r
2579 else if (c == (unsigned char)'\233')
\r
2580 term->print_state = 2;
\r
2581 else if (c == '[' && term->print_state == 1)
\r
2582 term->print_state = 2;
\r
2583 else if (c == '4' && term->print_state == 2)
\r
2584 term->print_state = 3;
\r
2585 else if (c == 'i' && term->print_state == 3)
\r
2586 term->print_state = 4;
\r
2588 term->print_state = 0;
\r
2589 if (term->print_state == 4) {
\r
2590 term_print_finish(term);
\r
2596 /* First see about all those translations. */
\r
2597 if (term->termstate == TOPLEVEL) {
\r
2599 switch (term->utf_state) {
\r
2602 /* UTF-8 must be stateless so we ignore iso2022. */
\r
2603 if (term->ucsdata->unitab_ctrl[c] != 0xFF)
\r
2604 c = term->ucsdata->unitab_ctrl[c];
\r
2605 else c = ((unsigned char)c) | CSET_ASCII;
\r
2607 } else if ((c & 0xe0) == 0xc0) {
\r
2608 term->utf_size = term->utf_state = 1;
\r
2609 term->utf_char = (c & 0x1f);
\r
2610 } else if ((c & 0xf0) == 0xe0) {
\r
2611 term->utf_size = term->utf_state = 2;
\r
2612 term->utf_char = (c & 0x0f);
\r
2613 } else if ((c & 0xf8) == 0xf0) {
\r
2614 term->utf_size = term->utf_state = 3;
\r
2615 term->utf_char = (c & 0x07);
\r
2616 } else if ((c & 0xfc) == 0xf8) {
\r
2617 term->utf_size = term->utf_state = 4;
\r
2618 term->utf_char = (c & 0x03);
\r
2619 } else if ((c & 0xfe) == 0xfc) {
\r
2620 term->utf_size = term->utf_state = 5;
\r
2621 term->utf_char = (c & 0x01);
\r
2632 if ((c & 0xC0) != 0x80) {
\r
2635 term->utf_state = 0;
\r
2638 term->utf_char = (term->utf_char << 6) | (c & 0x3f);
\r
2639 if (--term->utf_state)
\r
2642 c = term->utf_char;
\r
2644 /* Is somebody trying to be evil! */
\r
2646 (c < 0x800 && term->utf_size >= 2) ||
\r
2647 (c < 0x10000 && term->utf_size >= 3) ||
\r
2648 (c < 0x200000 && term->utf_size >= 4) ||
\r
2649 (c < 0x4000000 && term->utf_size >= 5))
\r
2652 /* Unicode line separator and paragraph separator are CR-LF */
\r
2653 if (c == 0x2028 || c == 0x2029)
\r
2656 /* High controls are probably a Baaad idea too. */
\r
2660 /* The UTF-16 surrogates are not nice either. */
\r
2661 /* The standard give the option of decoding these:
\r
2662 * I don't want to! */
\r
2663 if (c >= 0xD800 && c < 0xE000)
\r
2666 /* ISO 10646 characters now limited to UTF-16 range. */
\r
2670 /* This is currently a TagPhobic application.. */
\r
2671 if (c >= 0xE0000 && c <= 0xE007F)
\r
2674 /* U+FEFF is best seen as a null. */
\r
2677 /* But U+FFFE is an error. */
\r
2678 if (c == 0xFFFE || c == 0xFFFF)
\r
2683 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
\r
2684 else if(term->sco_acs &&
\r
2685 (c!='\033' && c!='\012' && c!='\015' && c!='\b'))
\r
2687 if (term->sco_acs == 2) c |= 0x80;
\r
2690 switch (term->cset_attr[term->cset]) {
\r
2692 * Linedraw characters are different from 'ESC ( B'
\r
2693 * only for a small range. For ones outside that
\r
2694 * range, make sure we use the same font as well as
\r
2695 * the same encoding.
\r
2697 case CSET_LINEDRW:
\r
2698 if (term->ucsdata->unitab_ctrl[c] != 0xFF)
\r
2699 c = term->ucsdata->unitab_ctrl[c];
\r
2701 c = ((unsigned char) c) | CSET_LINEDRW;
\r
2705 /* If UK-ASCII, make the '#' a LineDraw Pound */
\r
2707 c = '}' | CSET_LINEDRW;
\r
2710 /*FALLTHROUGH*/ case CSET_ASCII:
\r
2711 if (term->ucsdata->unitab_ctrl[c] != 0xFF)
\r
2712 c = term->ucsdata->unitab_ctrl[c];
\r
2714 c = ((unsigned char) c) | CSET_ASCII;
\r
2717 if (c>=' ') c = ((unsigned char)c) | CSET_SCOACS;
\r
2724 * How about C1 controls?
\r
2725 * Explicitly ignore SCI (0x9a), which we don't translate to DECID.
\r
2727 if ((c & -32) == 0x80 && term->termstate < DO_CTRLS &&
\r
2728 !term->vt52_mode && has_compat(VT220)) {
\r
2732 term->termstate = SEEN_ESC;
\r
2733 term->esc_query = FALSE;
\r
2734 c = '@' + (c & 0x1F);
\r
2738 /* Or the GL control. */
\r
2739 if (c == '\177' && term->termstate < DO_CTRLS && has_compat(OTHER)) {
\r
2740 if (term->curs.x && !term->wrapnext)
\r
2742 term->wrapnext = FALSE;
\r
2743 /* destructive backspace might be disabled */
\r
2744 if (!term->cfg.no_dbackspace) {
\r
2745 check_boundary(term, term->curs.x, term->curs.y);
\r
2746 check_boundary(term, term->curs.x+1, term->curs.y);
\r
2747 copy_termchar(scrlineptr(term->curs.y),
\r
2748 term->curs.x, &term->erase_char);
\r
2751 /* Or normal C0 controls. */
\r
2752 if ((c & ~0x1F) == 0 && term->termstate < DO_CTRLS) {
\r
2754 case '\005': /* ENQ: terminal type query */
\r
2756 * Strictly speaking this is VT100 but a VT100 defaults to
\r
2757 * no response. Other terminals respond at their option.
\r
2759 * Don't put a CR in the default string as this tends to
\r
2760 * upset some weird software.
\r
2762 compatibility(ANSIMIN);
\r
2763 if (term->ldisc) {
\r
2764 char abuf[lenof(term->cfg.answerback)], *s, *d;
\r
2765 for (s = term->cfg.answerback, d = abuf; *s;) {
\r
2767 char c = ctrlparse(s, &n);
\r
2775 lpage_send(term->ldisc, DEFAULT_CODEPAGE,
\r
2776 abuf, d - abuf, 0);
\r
2779 case '\007': /* BEL: Bell */
\r
2781 struct beeptime *newbeep;
\r
2782 unsigned long ticks;
\r
2784 ticks = GETTICKCOUNT();
\r
2786 if (!term->beep_overloaded) {
\r
2787 newbeep = snew(struct beeptime);
\r
2788 newbeep->ticks = ticks;
\r
2789 newbeep->next = NULL;
\r
2790 if (!term->beephead)
\r
2791 term->beephead = newbeep;
\r
2793 term->beeptail->next = newbeep;
\r
2794 term->beeptail = newbeep;
\r
2799 * Throw out any beeps that happened more than
\r
2802 while (term->beephead &&
\r
2803 term->beephead->ticks < ticks - term->cfg.bellovl_t) {
\r
2804 struct beeptime *tmp = term->beephead;
\r
2805 term->beephead = tmp->next;
\r
2807 if (!term->beephead)
\r
2808 term->beeptail = NULL;
\r
2812 if (term->cfg.bellovl && term->beep_overloaded &&
\r
2813 ticks - term->lastbeep >= (unsigned)term->cfg.bellovl_s) {
\r
2815 * If we're currently overloaded and the
\r
2816 * last beep was more than s seconds ago,
\r
2817 * leave overload mode.
\r
2819 term->beep_overloaded = FALSE;
\r
2820 } else if (term->cfg.bellovl && !term->beep_overloaded &&
\r
2821 term->nbeeps >= term->cfg.bellovl_n) {
\r
2823 * Now, if we have n or more beeps
\r
2824 * remaining in the queue, go into overload
\r
2827 term->beep_overloaded = TRUE;
\r
2829 term->lastbeep = ticks;
\r
2832 * Perform an actual beep if we're not overloaded.
\r
2834 if (!term->cfg.bellovl || !term->beep_overloaded) {
\r
2835 do_beep(term->frontend, term->cfg.beep);
\r
2837 if (term->cfg.beep == BELL_VISUAL) {
\r
2838 term_schedule_vbell(term, FALSE, 0);
\r
2841 seen_disp_event(term);
\r
2844 case '\b': /* BS: Back space */
\r
2845 if (term->curs.x == 0 &&
\r
2846 (term->curs.y == 0 || term->wrap == 0))
\r
2847 /* do nothing */ ;
\r
2848 else if (term->curs.x == 0 && term->curs.y > 0)
\r
2849 term->curs.x = term->cols - 1, term->curs.y--;
\r
2850 else if (term->wrapnext)
\r
2851 term->wrapnext = FALSE;
\r
2854 seen_disp_event(term);
\r
2856 case '\016': /* LS1: Locking-shift one */
\r
2857 compatibility(VT100);
\r
2860 case '\017': /* LS0: Locking-shift zero */
\r
2861 compatibility(VT100);
\r
2864 case '\033': /* ESC: Escape */
\r
2865 if (term->vt52_mode)
\r
2866 term->termstate = VT52_ESC;
\r
2868 compatibility(ANSIMIN);
\r
2869 term->termstate = SEEN_ESC;
\r
2870 term->esc_query = FALSE;
\r
2873 case '\015': /* CR: Carriage return */
\r
2875 term->wrapnext = FALSE;
\r
2876 seen_disp_event(term);
\r
2877 term->paste_hold = 0;
\r
2879 if (term->cfg.crhaslf) {
\r
2880 if (term->curs.y == term->marg_b)
\r
2881 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
\r
2882 else if (term->curs.y < term->rows - 1)
\r
2886 logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
\r
2888 case '\014': /* FF: Form feed */
\r
2889 if (has_compat(SCOANSI)) {
\r
2890 move(term, 0, 0, 0);
\r
2891 erase_lots(term, FALSE, FALSE, TRUE);
\r
2892 term->disptop = 0;
\r
2893 term->wrapnext = FALSE;
\r
2894 seen_disp_event(term);
\r
2897 case '\013': /* VT: Line tabulation */
\r
2898 compatibility(VT100);
\r
2899 case '\012': /* LF: Line feed */
\r
2900 if (term->curs.y == term->marg_b)
\r
2901 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
\r
2902 else if (term->curs.y < term->rows - 1)
\r
2904 if (term->cfg.lfhascr)
\r
2906 term->wrapnext = FALSE;
\r
2907 seen_disp_event(term);
\r
2908 term->paste_hold = 0;
\r
2910 logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
\r
2912 case '\t': /* HT: Character tabulation */
\r
2914 pos old_curs = term->curs;
\r
2915 termline *ldata = scrlineptr(term->curs.y);
\r
2919 } while (term->curs.x < term->cols - 1 &&
\r
2920 !term->tabs[term->curs.x]);
\r
2922 if ((ldata->lattr & LATTR_MODE) != LATTR_NORM) {
\r
2923 if (term->curs.x >= term->cols / 2)
\r
2924 term->curs.x = term->cols / 2 - 1;
\r
2926 if (term->curs.x >= term->cols)
\r
2927 term->curs.x = term->cols - 1;
\r
2930 check_selection(term, old_curs, term->curs);
\r
2932 seen_disp_event(term);
\r
2936 switch (term->termstate) {
\r
2938 /* Only graphic characters get this far;
\r
2939 * ctrls are stripped above */
\r
2941 termline *cline = scrlineptr(term->curs.y);
\r
2943 if (DIRECT_CHAR(c))
\r
2946 width = (term->cfg.cjk_ambig_wide ?
\r
2947 mk_wcwidth_cjk((wchar_t) c) :
\r
2948 mk_wcwidth((wchar_t) c));
\r
2950 if (term->wrapnext && term->wrap && width > 0) {
\r
2951 cline->lattr |= LATTR_WRAPPED;
\r
2952 if (term->curs.y == term->marg_b)
\r
2953 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
\r
2954 else if (term->curs.y < term->rows - 1)
\r
2957 term->wrapnext = FALSE;
\r
2958 cline = scrlineptr(term->curs.y);
\r
2960 if (term->insert && width > 0)
\r
2961 insch(term, width);
\r
2962 if (term->selstate != NO_SELECTION) {
\r
2963 pos cursplus = term->curs;
\r
2965 check_selection(term, term->curs, cursplus);
\r
2967 if (((c & CSET_MASK) == CSET_ASCII ||
\r
2968 (c & CSET_MASK) == 0) &&
\r
2970 logtraffic(term->logctx, (unsigned char) c,
\r
2976 * If we're about to display a double-width
\r
2977 * character starting in the rightmost
\r
2978 * column, then we do something special
\r
2979 * instead. We must print a space in the
\r
2980 * last column of the screen, then wrap;
\r
2981 * and we also set LATTR_WRAPPED2 which
\r
2982 * instructs subsequent cut-and-pasting not
\r
2983 * only to splice this line to the one
\r
2984 * after it, but to ignore the space in the
\r
2985 * last character position as well.
\r
2986 * (Because what was actually output to the
\r
2987 * terminal was presumably just a sequence
\r
2988 * of CJK characters, and we don't want a
\r
2989 * space to be pasted in the middle of
\r
2990 * those just because they had the
\r
2991 * misfortune to start in the wrong parity
\r
2992 * column. xterm concurs.)
\r
2994 check_boundary(term, term->curs.x, term->curs.y);
\r
2995 check_boundary(term, term->curs.x+2, term->curs.y);
\r
2996 if (term->curs.x == term->cols-1) {
\r
2997 copy_termchar(cline, term->curs.x,
\r
2998 &term->erase_char);
\r
2999 cline->lattr |= LATTR_WRAPPED | LATTR_WRAPPED2;
\r
3000 if (term->curs.y == term->marg_b)
\r
3001 scroll(term, term->marg_t, term->marg_b,
\r
3003 else if (term->curs.y < term->rows - 1)
\r
3006 cline = scrlineptr(term->curs.y);
\r
3007 /* Now we must check_boundary again, of course. */
\r
3008 check_boundary(term, term->curs.x, term->curs.y);
\r
3009 check_boundary(term, term->curs.x+2, term->curs.y);
\r
3012 /* FULL-TERMCHAR */
\r
3013 clear_cc(cline, term->curs.x);
\r
3014 cline->chars[term->curs.x].chr = c;
\r
3015 cline->chars[term->curs.x].attr = term->curr_attr;
\r
3019 /* FULL-TERMCHAR */
\r
3020 clear_cc(cline, term->curs.x);
\r
3021 cline->chars[term->curs.x].chr = UCSWIDE;
\r
3022 cline->chars[term->curs.x].attr = term->curr_attr;
\r
3026 check_boundary(term, term->curs.x, term->curs.y);
\r
3027 check_boundary(term, term->curs.x+1, term->curs.y);
\r
3029 /* FULL-TERMCHAR */
\r
3030 clear_cc(cline, term->curs.x);
\r
3031 cline->chars[term->curs.x].chr = c;
\r
3032 cline->chars[term->curs.x].attr = term->curr_attr;
\r
3036 if (term->curs.x > 0) {
\r
3037 int x = term->curs.x - 1;
\r
3039 /* If we're in wrapnext state, the character
\r
3040 * to combine with is _here_, not to our left. */
\r
3041 if (term->wrapnext)
\r
3045 * If the previous character is
\r
3046 * UCSWIDE, back up another one.
\r
3048 if (cline->chars[x].chr == UCSWIDE) {
\r
3053 add_cc(cline, x, c);
\r
3054 seen_disp_event(term);
\r
3061 if (term->curs.x == term->cols) {
\r
3063 term->wrapnext = TRUE;
\r
3064 if (term->wrap && term->vt52_mode) {
\r
3065 cline->lattr |= LATTR_WRAPPED;
\r
3066 if (term->curs.y == term->marg_b)
\r
3067 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
\r
3068 else if (term->curs.y < term->rows - 1)
\r
3071 term->wrapnext = FALSE;
\r
3074 seen_disp_event(term);
\r
3078 case OSC_MAYBE_ST:
\r
3080 * This state is virtually identical to SEEN_ESC, with the
\r
3081 * exception that we have an OSC sequence in the pipeline,
\r
3082 * and _if_ we see a backslash, we process it.
\r
3086 term->termstate = TOPLEVEL;
\r
3089 /* else fall through */
\r
3091 if (c >= ' ' && c <= '/') {
\r
3092 if (term->esc_query)
\r
3093 term->esc_query = -1;
\r
3095 term->esc_query = c;
\r
3098 term->termstate = TOPLEVEL;
\r
3099 switch (ANSI(c, term->esc_query)) {
\r
3100 case '[': /* enter CSI mode */
\r
3101 term->termstate = SEEN_CSI;
\r
3102 term->esc_nargs = 1;
\r
3103 term->esc_args[0] = ARG_DEFAULT;
\r
3104 term->esc_query = FALSE;
\r
3106 case ']': /* OSC: xterm escape sequences */
\r
3107 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
\r
3108 compatibility(OTHER);
\r
3109 term->termstate = SEEN_OSC;
\r
3110 term->esc_args[0] = 0;
\r
3112 case '7': /* DECSC: save cursor */
\r
3113 compatibility(VT100);
\r
3114 save_cursor(term, TRUE);
\r
3116 case '8': /* DECRC: restore cursor */
\r
3117 compatibility(VT100);
\r
3118 save_cursor(term, FALSE);
\r
3119 seen_disp_event(term);
\r
3121 case '=': /* DECKPAM: Keypad application mode */
\r
3122 compatibility(VT100);
\r
3123 term->app_keypad_keys = TRUE;
\r
3125 case '>': /* DECKPNM: Keypad numeric mode */
\r
3126 compatibility(VT100);
\r
3127 term->app_keypad_keys = FALSE;
\r
3129 case 'D': /* IND: exactly equivalent to LF */
\r
3130 compatibility(VT100);
\r
3131 if (term->curs.y == term->marg_b)
\r
3132 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
\r
3133 else if (term->curs.y < term->rows - 1)
\r
3135 term->wrapnext = FALSE;
\r
3136 seen_disp_event(term);
\r
3138 case 'E': /* NEL: exactly equivalent to CR-LF */
\r
3139 compatibility(VT100);
\r
3141 if (term->curs.y == term->marg_b)
\r
3142 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
\r
3143 else if (term->curs.y < term->rows - 1)
\r
3145 term->wrapnext = FALSE;
\r
3146 seen_disp_event(term);
\r
3148 case 'M': /* RI: reverse index - backwards LF */
\r
3149 compatibility(VT100);
\r
3150 if (term->curs.y == term->marg_t)
\r
3151 scroll(term, term->marg_t, term->marg_b, -1, TRUE);
\r
3152 else if (term->curs.y > 0)
\r
3154 term->wrapnext = FALSE;
\r
3155 seen_disp_event(term);
\r
3157 case 'Z': /* DECID: terminal type query */
\r
3158 compatibility(VT100);
\r
3160 ldisc_send(term->ldisc, term->id_string,
\r
3161 strlen(term->id_string), 0);
\r
3163 case 'c': /* RIS: restore power-on settings */
\r
3164 compatibility(VT100);
\r
3165 power_on(term, TRUE);
\r
3166 if (term->ldisc) /* cause ldisc to notice changes */
\r
3167 ldisc_send(term->ldisc, NULL, 0, 0);
\r
3168 if (term->reset_132) {
\r
3169 if (!term->cfg.no_remote_resize)
\r
3170 request_resize(term->frontend, 80, term->rows);
\r
3171 term->reset_132 = 0;
\r
3173 term->disptop = 0;
\r
3174 seen_disp_event(term);
\r
3176 case 'H': /* HTS: set a tab */
\r
3177 compatibility(VT100);
\r
3178 term->tabs[term->curs.x] = TRUE;
\r
3181 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
\r
3182 compatibility(VT100);
\r
3186 pos scrtop, scrbot;
\r
3188 for (i = 0; i < term->rows; i++) {
\r
3189 ldata = scrlineptr(i);
\r
3190 for (j = 0; j < term->cols; j++) {
\r
3191 copy_termchar(ldata, j,
\r
3192 &term->basic_erase_char);
\r
3193 ldata->chars[j].chr = 'E';
\r
3195 ldata->lattr = LATTR_NORM;
\r
3197 term->disptop = 0;
\r
3198 seen_disp_event(term);
\r
3199 scrtop.x = scrtop.y = 0;
\r
3201 scrbot.y = term->rows;
\r
3202 check_selection(term, scrtop, scrbot);
\r
3206 case ANSI('3', '#'):
\r
3207 case ANSI('4', '#'):
\r
3208 case ANSI('5', '#'):
\r
3209 case ANSI('6', '#'):
\r
3210 compatibility(VT100);
\r
3214 switch (ANSI(c, term->esc_query)) {
\r
3215 case ANSI('3', '#'): /* DECDHL: 2*height, top */
\r
3216 nlattr = LATTR_TOP;
\r
3218 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
\r
3219 nlattr = LATTR_BOT;
\r
3221 case ANSI('5', '#'): /* DECSWL: normal */
\r
3222 nlattr = LATTR_NORM;
\r
3224 default: /* case ANSI('6', '#'): DECDWL: 2*width */
\r
3225 nlattr = LATTR_WIDE;
\r
3228 scrlineptr(term->curs.y)->lattr = nlattr;
\r
3231 /* GZD4: G0 designate 94-set */
\r
3232 case ANSI('A', '('):
\r
3233 compatibility(VT100);
\r
3234 if (!term->cfg.no_remote_charset)
\r
3235 term->cset_attr[0] = CSET_GBCHR;
\r
3237 case ANSI('B', '('):
\r
3238 compatibility(VT100);
\r
3239 if (!term->cfg.no_remote_charset)
\r
3240 term->cset_attr[0] = CSET_ASCII;
\r
3242 case ANSI('0', '('):
\r
3243 compatibility(VT100);
\r
3244 if (!term->cfg.no_remote_charset)
\r
3245 term->cset_attr[0] = CSET_LINEDRW;
\r
3247 case ANSI('U', '('):
\r
3248 compatibility(OTHER);
\r
3249 if (!term->cfg.no_remote_charset)
\r
3250 term->cset_attr[0] = CSET_SCOACS;
\r
3252 /* G1D4: G1-designate 94-set */
\r
3253 case ANSI('A', ')'):
\r
3254 compatibility(VT100);
\r
3255 if (!term->cfg.no_remote_charset)
\r
3256 term->cset_attr[1] = CSET_GBCHR;
\r
3258 case ANSI('B', ')'):
\r
3259 compatibility(VT100);
\r
3260 if (!term->cfg.no_remote_charset)
\r
3261 term->cset_attr[1] = CSET_ASCII;
\r
3263 case ANSI('0', ')'):
\r
3264 compatibility(VT100);
\r
3265 if (!term->cfg.no_remote_charset)
\r
3266 term->cset_attr[1] = CSET_LINEDRW;
\r
3268 case ANSI('U', ')'):
\r
3269 compatibility(OTHER);
\r
3270 if (!term->cfg.no_remote_charset)
\r
3271 term->cset_attr[1] = CSET_SCOACS;
\r
3273 /* DOCS: Designate other coding system */
\r
3274 case ANSI('8', '%'): /* Old Linux code */
\r
3275 case ANSI('G', '%'):
\r
3276 compatibility(OTHER);
\r
3277 if (!term->cfg.no_remote_charset)
\r
3280 case ANSI('@', '%'):
\r
3281 compatibility(OTHER);
\r
3282 if (!term->cfg.no_remote_charset)
\r
3288 term->termstate = TOPLEVEL; /* default */
\r
3290 if (term->esc_nargs <= ARGS_MAX) {
\r
3291 if (term->esc_args[term->esc_nargs - 1] == ARG_DEFAULT)
\r
3292 term->esc_args[term->esc_nargs - 1] = 0;
\r
3293 term->esc_args[term->esc_nargs - 1] =
\r
3294 10 * term->esc_args[term->esc_nargs - 1] + c - '0';
\r
3296 term->termstate = SEEN_CSI;
\r
3297 } else if (c == ';') {
\r
3298 if (term->esc_nargs < ARGS_MAX)
\r
3299 term->esc_args[term->esc_nargs++] = ARG_DEFAULT;
\r
3300 term->termstate = SEEN_CSI;
\r
3301 } else if (c < '@') {
\r
3302 if (term->esc_query)
\r
3303 term->esc_query = -1;
\r
3304 else if (c == '?')
\r
3305 term->esc_query = TRUE;
\r
3307 term->esc_query = c;
\r
3308 term->termstate = SEEN_CSI;
\r
3310 switch (ANSI(c, term->esc_query)) {
\r
3311 case 'A': /* CUU: move up N lines */
\r
3312 move(term, term->curs.x,
\r
3313 term->curs.y - def(term->esc_args[0], 1), 1);
\r
3314 seen_disp_event(term);
\r
3316 case 'e': /* VPR: move down N lines */
\r
3317 compatibility(ANSI);
\r
3319 case 'B': /* CUD: Cursor down */
\r
3320 move(term, term->curs.x,
\r
3321 term->curs.y + def(term->esc_args[0], 1), 1);
\r
3322 seen_disp_event(term);
\r
3324 case ANSI('c', '>'): /* DA: report xterm version */
\r
3325 compatibility(OTHER);
\r
3326 /* this reports xterm version 136 so that VIM can
\r
3327 use the drag messages from the mouse reporting */
\r
3329 ldisc_send(term->ldisc, "\033[>0;136;0c", 11, 0);
\r
3331 case 'a': /* HPR: move right N cols */
\r
3332 compatibility(ANSI);
\r
3334 case 'C': /* CUF: Cursor right */
\r
3335 move(term, term->curs.x + def(term->esc_args[0], 1),
\r
3337 seen_disp_event(term);
\r
3339 case 'D': /* CUB: move left N cols */
\r
3340 move(term, term->curs.x - def(term->esc_args[0], 1),
\r
3342 seen_disp_event(term);
\r
3344 case 'E': /* CNL: move down N lines and CR */
\r
3345 compatibility(ANSI);
\r
3347 term->curs.y + def(term->esc_args[0], 1), 1);
\r
3348 seen_disp_event(term);
\r
3350 case 'F': /* CPL: move up N lines and CR */
\r
3351 compatibility(ANSI);
\r
3353 term->curs.y - def(term->esc_args[0], 1), 1);
\r
3354 seen_disp_event(term);
\r
3356 case 'G': /* CHA */
\r
3357 case '`': /* HPA: set horizontal posn */
\r
3358 compatibility(ANSI);
\r
3359 move(term, def(term->esc_args[0], 1) - 1,
\r
3361 seen_disp_event(term);
\r
3363 case 'd': /* VPA: set vertical posn */
\r
3364 compatibility(ANSI);
\r
3365 move(term, term->curs.x,
\r
3366 ((term->dec_om ? term->marg_t : 0) +
\r
3367 def(term->esc_args[0], 1) - 1),
\r
3368 (term->dec_om ? 2 : 0));
\r
3369 seen_disp_event(term);
\r
3371 case 'H': /* CUP */
\r
3372 case 'f': /* HVP: set horz and vert posns at once */
\r
3373 if (term->esc_nargs < 2)
\r
3374 term->esc_args[1] = ARG_DEFAULT;
\r
3375 move(term, def(term->esc_args[1], 1) - 1,
\r
3376 ((term->dec_om ? term->marg_t : 0) +
\r
3377 def(term->esc_args[0], 1) - 1),
\r
3378 (term->dec_om ? 2 : 0));
\r
3379 seen_disp_event(term);
\r
3381 case 'J': /* ED: erase screen or parts of it */
\r
3383 unsigned int i = def(term->esc_args[0], 0);
\r
3385 /* Erase Saved Lines (xterm)
\r
3386 * This follows Thomas Dickey's xterm. */
\r
3392 erase_lots(term, FALSE, !!(i & 2), !!(i & 1));
\r
3395 term->disptop = 0;
\r
3396 seen_disp_event(term);
\r
3398 case 'K': /* EL: erase line or parts of it */
\r
3400 unsigned int i = def(term->esc_args[0], 0) + 1;
\r
3403 erase_lots(term, TRUE, !!(i & 2), !!(i & 1));
\r
3405 seen_disp_event(term);
\r
3407 case 'L': /* IL: insert lines */
\r
3408 compatibility(VT102);
\r
3409 if (term->curs.y <= term->marg_b)
\r
3410 scroll(term, term->curs.y, term->marg_b,
\r
3411 -def(term->esc_args[0], 1), FALSE);
\r
3412 seen_disp_event(term);
\r
3414 case 'M': /* DL: delete lines */
\r
3415 compatibility(VT102);
\r
3416 if (term->curs.y <= term->marg_b)
\r
3417 scroll(term, term->curs.y, term->marg_b,
\r
3418 def(term->esc_args[0], 1),
\r
3420 seen_disp_event(term);
\r
3422 case '@': /* ICH: insert chars */
\r
3423 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
\r
3424 compatibility(VT102);
\r
3425 insch(term, def(term->esc_args[0], 1));
\r
3426 seen_disp_event(term);
\r
3428 case 'P': /* DCH: delete chars */
\r
3429 compatibility(VT102);
\r
3430 insch(term, -def(term->esc_args[0], 1));
\r
3431 seen_disp_event(term);
\r
3433 case 'c': /* DA: terminal type query */
\r
3434 compatibility(VT100);
\r
3435 /* This is the response for a VT102 */
\r
3437 ldisc_send(term->ldisc, term->id_string,
\r
3438 strlen(term->id_string), 0);
\r
3440 case 'n': /* DSR: cursor position query */
\r
3441 if (term->ldisc) {
\r
3442 if (term->esc_args[0] == 6) {
\r
3444 sprintf(buf, "\033[%d;%dR", term->curs.y + 1,
\r
3445 term->curs.x + 1);
\r
3446 ldisc_send(term->ldisc, buf, strlen(buf), 0);
\r
3447 } else if (term->esc_args[0] == 5) {
\r
3448 ldisc_send(term->ldisc, "\033[0n", 4, 0);
\r
3452 case 'h': /* SM: toggle modes to high */
\r
3453 case ANSI_QUE('h'):
\r
3454 compatibility(VT100);
\r
3457 for (i = 0; i < term->esc_nargs; i++)
\r
3458 toggle_mode(term, term->esc_args[i],
\r
3459 term->esc_query, TRUE);
\r
3462 case 'i': /* MC: Media copy */
\r
3463 case ANSI_QUE('i'):
\r
3464 compatibility(VT100);
\r
3466 if (term->esc_nargs != 1) break;
\r
3467 if (term->esc_args[0] == 5 && *term->cfg.printer) {
\r
3468 term->printing = TRUE;
\r
3469 term->only_printing = !term->esc_query;
\r
3470 term->print_state = 0;
\r
3471 term_print_setup(term);
\r
3472 } else if (term->esc_args[0] == 4 &&
\r
3474 term_print_finish(term);
\r
3478 case 'l': /* RM: toggle modes to low */
\r
3479 case ANSI_QUE('l'):
\r
3480 compatibility(VT100);
\r
3483 for (i = 0; i < term->esc_nargs; i++)
\r
3484 toggle_mode(term, term->esc_args[i],
\r
3485 term->esc_query, FALSE);
\r
3488 case 'g': /* TBC: clear tabs */
\r
3489 compatibility(VT100);
\r
3490 if (term->esc_nargs == 1) {
\r
3491 if (term->esc_args[0] == 0) {
\r
3492 term->tabs[term->curs.x] = FALSE;
\r
3493 } else if (term->esc_args[0] == 3) {
\r
3495 for (i = 0; i < term->cols; i++)
\r
3496 term->tabs[i] = FALSE;
\r
3500 case 'r': /* DECSTBM: set scroll margins */
\r
3501 compatibility(VT100);
\r
3502 if (term->esc_nargs <= 2) {
\r
3504 top = def(term->esc_args[0], 1) - 1;
\r
3505 bot = (term->esc_nargs <= 1
\r
3506 || term->esc_args[1] == 0 ?
\r
3508 def(term->esc_args[1], term->rows)) - 1;
\r
3509 if (bot >= term->rows)
\r
3510 bot = term->rows - 1;
\r
3511 /* VTTEST Bug 9 - if region is less than 2 lines
\r
3512 * don't change region.
\r
3514 if (bot - top > 0) {
\r
3515 term->marg_t = top;
\r
3516 term->marg_b = bot;
\r
3519 * I used to think the cursor should be
\r
3520 * placed at the top of the newly marginned
\r
3521 * area. Apparently not: VMS TPU falls over
\r
3524 * Well actually it should for
\r
3525 * Origin mode - RDB
\r
3527 term->curs.y = (term->dec_om ?
\r
3528 term->marg_t : 0);
\r
3529 seen_disp_event(term);
\r
3533 case 'm': /* SGR: set graphics rendition */
\r
3536 * A VT100 without the AVO only had one
\r
3537 * attribute, either underline or
\r
3538 * reverse video depending on the
\r
3539 * cursor type, this was selected by
\r
3543 * This is sometimes DIM, eg on the
\r
3546 * This is sometimes INVIS various ANSI.
\r
3548 * This like 22 disables BOLD, DIM and INVIS
\r
3550 * The ANSI colours appear on any
\r
3551 * terminal that has colour (obviously)
\r
3552 * but the interaction between sgr0 and
\r
3553 * the colours varies but is usually
\r
3554 * related to the background colour
\r
3555 * erase item. The interaction between
\r
3556 * colour attributes and the mono ones
\r
3557 * is also very implementation
\r
3560 * The 39 and 49 attributes are likely
\r
3561 * to be unimplemented.
\r
3564 for (i = 0; i < term->esc_nargs; i++) {
\r
3565 switch (def(term->esc_args[i], 0)) {
\r
3566 case 0: /* restore defaults */
\r
3567 term->curr_attr = term->default_attr;
\r
3569 case 1: /* enable bold */
\r
3570 compatibility(VT100AVO);
\r
3571 term->curr_attr |= ATTR_BOLD;
\r
3573 case 21: /* (enable double underline) */
\r
3574 compatibility(OTHER);
\r
3575 case 4: /* enable underline */
\r
3576 compatibility(VT100AVO);
\r
3577 term->curr_attr |= ATTR_UNDER;
\r
3579 case 5: /* enable blink */
\r
3580 compatibility(VT100AVO);
\r
3581 term->curr_attr |= ATTR_BLINK;
\r
3583 case 6: /* SCO light bkgrd */
\r
3584 compatibility(SCOANSI);
\r
3585 term->blink_is_real = FALSE;
\r
3586 term->curr_attr |= ATTR_BLINK;
\r
3587 term_schedule_tblink(term);
\r
3589 case 7: /* enable reverse video */
\r
3590 term->curr_attr |= ATTR_REVERSE;
\r
3592 case 10: /* SCO acs off */
\r
3593 compatibility(SCOANSI);
\r
3594 if (term->cfg.no_remote_charset) break;
\r
3595 term->sco_acs = 0; break;
\r
3596 case 11: /* SCO acs on */
\r
3597 compatibility(SCOANSI);
\r
3598 if (term->cfg.no_remote_charset) break;
\r
3599 term->sco_acs = 1; break;
\r
3600 case 12: /* SCO acs on, |0x80 */
\r
3601 compatibility(SCOANSI);
\r
3602 if (term->cfg.no_remote_charset) break;
\r
3603 term->sco_acs = 2; break;
\r
3604 case 22: /* disable bold */
\r
3605 compatibility2(OTHER, VT220);
\r
3606 term->curr_attr &= ~ATTR_BOLD;
\r
3608 case 24: /* disable underline */
\r
3609 compatibility2(OTHER, VT220);
\r
3610 term->curr_attr &= ~ATTR_UNDER;
\r
3612 case 25: /* disable blink */
\r
3613 compatibility2(OTHER, VT220);
\r
3614 term->curr_attr &= ~ATTR_BLINK;
\r
3616 case 27: /* disable reverse video */
\r
3617 compatibility2(OTHER, VT220);
\r
3618 term->curr_attr &= ~ATTR_REVERSE;
\r
3629 term->curr_attr &= ~ATTR_FGMASK;
\r
3630 term->curr_attr |=
\r
3631 (term->esc_args[i] - 30)<<ATTR_FGSHIFT;
\r
3641 /* aixterm-style bright foreground */
\r
3642 term->curr_attr &= ~ATTR_FGMASK;
\r
3643 term->curr_attr |=
\r
3644 ((term->esc_args[i] - 90 + 8)
\r
3647 case 39: /* default-foreground */
\r
3648 term->curr_attr &= ~ATTR_FGMASK;
\r
3649 term->curr_attr |= ATTR_DEFFG;
\r
3660 term->curr_attr &= ~ATTR_BGMASK;
\r
3661 term->curr_attr |=
\r
3662 (term->esc_args[i] - 40)<<ATTR_BGSHIFT;
\r
3672 /* aixterm-style bright background */
\r
3673 term->curr_attr &= ~ATTR_BGMASK;
\r
3674 term->curr_attr |=
\r
3675 ((term->esc_args[i] - 100 + 8)
\r
3678 case 49: /* default-background */
\r
3679 term->curr_attr &= ~ATTR_BGMASK;
\r
3680 term->curr_attr |= ATTR_DEFBG;
\r
3682 case 38: /* xterm 256-colour mode */
\r
3683 if (i+2 < term->esc_nargs &&
\r
3684 term->esc_args[i+1] == 5) {
\r
3685 term->curr_attr &= ~ATTR_FGMASK;
\r
3686 term->curr_attr |=
\r
3687 ((term->esc_args[i+2] & 0xFF)
\r
3692 case 48: /* xterm 256-colour mode */
\r
3693 if (i+2 < term->esc_nargs &&
\r
3694 term->esc_args[i+1] == 5) {
\r
3695 term->curr_attr &= ~ATTR_BGMASK;
\r
3696 term->curr_attr |=
\r
3697 ((term->esc_args[i+2] & 0xFF)
\r
3704 set_erase_char(term);
\r
3707 case 's': /* save cursor */
\r
3708 save_cursor(term, TRUE);
\r
3710 case 'u': /* restore cursor */
\r
3711 save_cursor(term, FALSE);
\r
3712 seen_disp_event(term);
\r
3714 case 't': /* DECSLPP: set page size - ie window height */
\r
3716 * VT340/VT420 sequence DECSLPP, DEC only allows values
\r
3717 * 24/25/36/48/72/144 other emulators (eg dtterm) use
\r
3718 * illegal values (eg first arg 1..9) for window changing
\r
3721 if (term->esc_nargs <= 1
\r
3722 && (term->esc_args[0] < 1 ||
\r
3723 term->esc_args[0] >= 24)) {
\r
3724 compatibility(VT340TEXT);
\r
3725 if (!term->cfg.no_remote_resize)
\r
3726 request_resize(term->frontend, term->cols,
\r
3727 def(term->esc_args[0], 24));
\r
3729 } else if (term->esc_nargs >= 1 &&
\r
3730 term->esc_args[0] >= 1 &&
\r
3731 term->esc_args[0] < 24) {
\r
3732 compatibility(OTHER);
\r
3734 switch (term->esc_args[0]) {
\r
3738 set_iconic(term->frontend, FALSE);
\r
3741 set_iconic(term->frontend, TRUE);
\r
3744 if (term->esc_nargs >= 3) {
\r
3745 if (!term->cfg.no_remote_resize)
\r
3746 move_window(term->frontend,
\r
3747 def(term->esc_args[1], 0),
\r
3748 def(term->esc_args[2], 0));
\r
3752 /* We should resize the window to a given
\r
3753 * size in pixels here, but currently our
\r
3754 * resizing code isn't healthy enough to
\r
3759 set_zorder(term->frontend, TRUE);
\r
3762 /* move to bottom */
\r
3763 set_zorder(term->frontend, FALSE);
\r
3766 refresh_window(term->frontend);
\r
3769 if (term->esc_nargs >= 3) {
\r
3770 if (!term->cfg.no_remote_resize)
\r
3771 request_resize(term->frontend,
\r
3772 def(term->esc_args[2], term->cfg.width),
\r
3773 def(term->esc_args[1], term->cfg.height));
\r
3777 if (term->esc_nargs >= 2)
\r
3778 set_zoomed(term->frontend,
\r
3779 term->esc_args[1] ?
\r
3784 ldisc_send(term->ldisc,
\r
3785 is_iconic(term->frontend) ?
\r
3786 "\033[2t" : "\033[1t", 4, 0);
\r
3789 if (term->ldisc) {
\r
3790 get_window_pos(term->frontend, &x, &y);
\r
3791 len = sprintf(buf, "\033[3;%d;%dt", x, y);
\r
3792 ldisc_send(term->ldisc, buf, len, 0);
\r
3796 if (term->ldisc) {
\r
3797 get_window_pixels(term->frontend, &x, &y);
\r
3798 len = sprintf(buf, "\033[4;%d;%dt", y, x);
\r
3799 ldisc_send(term->ldisc, buf, len, 0);
\r
3803 if (term->ldisc) {
\r
3804 len = sprintf(buf, "\033[8;%d;%dt",
\r
3805 term->rows, term->cols);
\r
3806 ldisc_send(term->ldisc, buf, len, 0);
\r
3811 * Hmmm. Strictly speaking we
\r
3812 * should return `the size of the
\r
3813 * screen in characters', but
\r
3814 * that's not easy: (a) window
\r
3815 * furniture being what it is it's
\r
3816 * hard to compute, and (b) in
\r
3817 * resize-font mode maximising the
\r
3818 * window wouldn't change the
\r
3819 * number of characters. *shrug*. I
\r
3820 * think we'll ignore it for the
\r
3821 * moment and see if anyone
\r
3822 * complains, and then ask them
\r
3823 * what they would like it to do.
\r
3827 if (term->ldisc &&
\r
3828 term->cfg.remote_qtitle_action != TITLE_NONE) {
\r
3829 if(term->cfg.remote_qtitle_action == TITLE_REAL)
\r
3830 p = get_window_title(term->frontend, TRUE);
\r
3832 p = EMPTY_WINDOW_TITLE;
\r
3834 ldisc_send(term->ldisc, "\033]L", 3, 0);
\r
3835 ldisc_send(term->ldisc, p, len, 0);
\r
3836 ldisc_send(term->ldisc, "\033\\", 2, 0);
\r
3840 if (term->ldisc &&
\r
3841 term->cfg.remote_qtitle_action != TITLE_NONE) {
\r
3842 if(term->cfg.remote_qtitle_action == TITLE_REAL)
\r
3843 p = get_window_title(term->frontend, FALSE);
\r
3845 p = EMPTY_WINDOW_TITLE;
\r
3847 ldisc_send(term->ldisc, "\033]l", 3, 0);
\r
3848 ldisc_send(term->ldisc, p, len, 0);
\r
3849 ldisc_send(term->ldisc, "\033\\", 2, 0);
\r
3855 case 'S': /* SU: Scroll up */
\r
3856 compatibility(SCOANSI);
\r
3857 scroll(term, term->marg_t, term->marg_b,
\r
3858 def(term->esc_args[0], 1), TRUE);
\r
3859 term->wrapnext = FALSE;
\r
3860 seen_disp_event(term);
\r
3862 case 'T': /* SD: Scroll down */
\r
3863 compatibility(SCOANSI);
\r
3864 scroll(term, term->marg_t, term->marg_b,
\r
3865 -def(term->esc_args[0], 1), TRUE);
\r
3866 term->wrapnext = FALSE;
\r
3867 seen_disp_event(term);
\r
3869 case ANSI('|', '*'): /* DECSNLS */
\r
3871 * Set number of lines on screen
\r
3872 * VT420 uses VGA like hardware and can
\r
3873 * support any size in reasonable range
\r
3874 * (24..49 AIUI) with no default specified.
\r
3876 compatibility(VT420);
\r
3877 if (term->esc_nargs == 1 && term->esc_args[0] > 0) {
\r
3878 if (!term->cfg.no_remote_resize)
\r
3879 request_resize(term->frontend, term->cols,
\r
3880 def(term->esc_args[0],
\r
3881 term->cfg.height));
\r
3885 case ANSI('|', '$'): /* DECSCPP */
\r
3887 * Set number of columns per page
\r
3888 * Docs imply range is only 80 or 132, but
\r
3891 compatibility(VT340TEXT);
\r
3892 if (term->esc_nargs <= 1) {
\r
3893 if (!term->cfg.no_remote_resize)
\r
3894 request_resize(term->frontend,
\r
3895 def(term->esc_args[0],
\r
3896 term->cfg.width), term->rows);
\r
3900 case 'X': /* ECH: write N spaces w/o moving cursor */
\r
3901 /* XXX VTTEST says this is vt220, vt510 manual
\r
3903 compatibility(ANSIMIN);
\r
3905 int n = def(term->esc_args[0], 1);
\r
3907 int p = term->curs.x;
\r
3908 termline *cline = scrlineptr(term->curs.y);
\r
3910 if (n > term->cols - term->curs.x)
\r
3911 n = term->cols - term->curs.x;
\r
3912 cursplus = term->curs;
\r
3914 check_boundary(term, term->curs.x, term->curs.y);
\r
3915 check_boundary(term, term->curs.x+n, term->curs.y);
\r
3916 check_selection(term, term->curs, cursplus);
\r
3918 copy_termchar(cline, p++,
\r
3919 &term->erase_char);
\r
3920 seen_disp_event(term);
\r
3923 case 'x': /* DECREQTPARM: report terminal characteristics */
\r
3924 compatibility(VT100);
\r
3925 if (term->ldisc) {
\r
3927 int i = def(term->esc_args[0], 0);
\r
3928 if (i == 0 || i == 1) {
\r
3929 strcpy(buf, "\033[2;1;1;112;112;1;0x");
\r
3931 ldisc_send(term->ldisc, buf, 20, 0);
\r
3935 case 'Z': /* CBT */
\r
3936 compatibility(OTHER);
\r
3938 int i = def(term->esc_args[0], 1);
\r
3939 pos old_curs = term->curs;
\r
3941 for(;i>0 && term->curs.x>0; i--) {
\r
3944 } while (term->curs.x >0 &&
\r
3945 !term->tabs[term->curs.x]);
\r
3947 check_selection(term, old_curs, term->curs);
\r
3950 case ANSI('c', '='): /* Hide or Show Cursor */
\r
3951 compatibility(SCOANSI);
\r
3952 switch(term->esc_args[0]) {
\r
3953 case 0: /* hide cursor */
\r
3954 term->cursor_on = FALSE;
\r
3956 case 1: /* restore cursor */
\r
3957 term->big_cursor = FALSE;
\r
3958 term->cursor_on = TRUE;
\r
3960 case 2: /* block cursor */
\r
3961 term->big_cursor = TRUE;
\r
3962 term->cursor_on = TRUE;
\r
3966 case ANSI('C', '='):
\r
3968 * set cursor start on scanline esc_args[0] and
\r
3969 * end on scanline esc_args[1].If you set
\r
3970 * the bottom scan line to a value less than
\r
3971 * the top scan line, the cursor will disappear.
\r
3973 compatibility(SCOANSI);
\r
3974 if (term->esc_nargs >= 2) {
\r
3975 if (term->esc_args[0] > term->esc_args[1])
\r
3976 term->cursor_on = FALSE;
\r
3978 term->cursor_on = TRUE;
\r
3981 case ANSI('D', '='):
\r
3982 compatibility(SCOANSI);
\r
3983 term->blink_is_real = FALSE;
\r
3984 term_schedule_tblink(term);
\r
3985 if (term->esc_args[0]>=1)
\r
3986 term->curr_attr |= ATTR_BLINK;
\r
3988 term->curr_attr &= ~ATTR_BLINK;
\r
3990 case ANSI('E', '='):
\r
3991 compatibility(SCOANSI);
\r
3992 term->blink_is_real = (term->esc_args[0] >= 1);
\r
3993 term_schedule_tblink(term);
\r
3995 case ANSI('F', '='): /* set normal foreground */
\r
3996 compatibility(SCOANSI);
\r
3997 if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
\r
3999 (sco2ansicolour[term->esc_args[0] & 0x7] |
\r
4000 (term->esc_args[0] & 0x8)) <<
\r
4002 term->curr_attr &= ~ATTR_FGMASK;
\r
4003 term->curr_attr |= colour;
\r
4004 term->default_attr &= ~ATTR_FGMASK;
\r
4005 term->default_attr |= colour;
\r
4006 set_erase_char(term);
\r
4009 case ANSI('G', '='): /* set normal background */
\r
4010 compatibility(SCOANSI);
\r
4011 if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
\r
4013 (sco2ansicolour[term->esc_args[0] & 0x7] |
\r
4014 (term->esc_args[0] & 0x8)) <<
\r
4016 term->curr_attr &= ~ATTR_BGMASK;
\r
4017 term->curr_attr |= colour;
\r
4018 term->default_attr &= ~ATTR_BGMASK;
\r
4019 term->default_attr |= colour;
\r
4020 set_erase_char(term);
\r
4023 case ANSI('L', '='):
\r
4024 compatibility(SCOANSI);
\r
4025 term->use_bce = (term->esc_args[0] <= 0);
\r
4026 set_erase_char(term);
\r
4028 case ANSI('p', '"'): /* DECSCL: set compat level */
\r
4030 * Allow the host to make this emulator a
\r
4031 * 'perfect' VT102. This first appeared in
\r
4032 * the VT220, but we do need to get back to
\r
4033 * PuTTY mode so I won't check it.
\r
4035 * The arg in 40..42,50 are a PuTTY extension.
\r
4036 * The 2nd arg, 8bit vs 7bit is not checked.
\r
4038 * Setting VT102 mode should also change
\r
4039 * the Fkeys to generate PF* codes as a
\r
4040 * real VT102 has no Fkeys. The VT220 does
\r
4041 * this, F11..F13 become ESC,BS,LF other
\r
4042 * Fkeys send nothing.
\r
4044 * Note ESC c will NOT change this!
\r
4047 switch (term->esc_args[0]) {
\r
4049 term->compatibility_level &= ~TM_VTXXX;
\r
4050 term->compatibility_level |= TM_VT102;
\r
4053 term->compatibility_level &= ~TM_VTXXX;
\r
4054 term->compatibility_level |= TM_VT220;
\r
4058 if (term->esc_args[0] > 60 &&
\r
4059 term->esc_args[0] < 70)
\r
4060 term->compatibility_level |= TM_VTXXX;
\r
4064 term->compatibility_level &= TM_VTXXX;
\r
4067 term->compatibility_level = TM_PUTTY;
\r
4070 term->compatibility_level = TM_SCOANSI;
\r
4074 term->compatibility_level = TM_PUTTY;
\r
4080 /* Change the response to CSI c */
\r
4081 if (term->esc_args[0] == 50) {
\r
4084 strcpy(term->id_string, "\033[?");
\r
4085 for (i = 1; i < term->esc_nargs; i++) {
\r
4087 strcat(term->id_string, ";");
\r
4088 sprintf(lbuf, "%d", term->esc_args[i]);
\r
4089 strcat(term->id_string, lbuf);
\r
4091 strcat(term->id_string, "c");
\r
4094 /* Is this a good idea ?
\r
4095 * Well we should do a soft reset at this point ...
\r
4097 if (!has_compat(VT420) && has_compat(VT100)) {
\r
4098 if (!term->cfg.no_remote_resize) {
\r
4099 if (term->reset_132)
\r
4100 request_resize(132, 24);
\r
4102 request_resize(80, 24);
\r
4110 term->osc_w = FALSE;
\r
4112 case 'P': /* Linux palette sequence */
\r
4113 term->termstate = SEEN_OSC_P;
\r
4114 term->osc_strlen = 0;
\r
4116 case 'R': /* Linux palette reset */
\r
4117 palette_reset(term->frontend);
\r
4118 term_invalidate(term);
\r
4119 term->termstate = TOPLEVEL;
\r
4121 case 'W': /* word-set */
\r
4122 term->termstate = SEEN_OSC_W;
\r
4123 term->osc_w = TRUE;
\r
4135 term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
\r
4139 * Grotty hack to support xterm and DECterm title
\r
4140 * sequences concurrently.
\r
4142 if (term->esc_args[0] == 2) {
\r
4143 term->esc_args[0] = 1;
\r
4146 /* else fall through */
\r
4148 term->termstate = OSC_STRING;
\r
4149 term->osc_strlen = 0;
\r
4154 * This OSC stuff is EVIL. It takes just one character to get into
\r
4155 * sysline mode and it's not initially obvious how to get out.
\r
4156 * So I've added CR and LF as string aborts.
\r
4157 * This shouldn't effect compatibility as I believe embedded
\r
4158 * control characters are supposed to be interpreted (maybe?)
\r
4159 * and they don't display anything useful anyway.
\r
4163 if (c == '\012' || c == '\015') {
\r
4164 term->termstate = TOPLEVEL;
\r
4165 } else if (c == 0234 || c == '\007') {
\r
4167 * These characters terminate the string; ST and BEL
\r
4168 * terminate the sequence and trigger instant
\r
4169 * processing of it, whereas ESC goes back to SEEN_ESC
\r
4170 * mode unless it is followed by \, in which case it is
\r
4171 * synonymous with ST in the first place.
\r
4174 term->termstate = TOPLEVEL;
\r
4175 } else if (c == '\033')
\r
4176 term->termstate = OSC_MAYBE_ST;
\r
4177 else if (term->osc_strlen < OSC_STR_MAX)
\r
4178 term->osc_string[term->osc_strlen++] = (char)c;
\r
4182 int max = (term->osc_strlen == 0 ? 21 : 15);
\r
4184 if ((int)c >= '0' && (int)c <= '9')
\r
4186 else if ((int)c >= 'A' && (int)c <= 'A' + max - 10)
\r
4187 val = c - 'A' + 10;
\r
4188 else if ((int)c >= 'a' && (int)c <= 'a' + max - 10)
\r
4189 val = c - 'a' + 10;
\r
4191 term->termstate = TOPLEVEL;
\r
4194 term->osc_string[term->osc_strlen++] = val;
\r
4195 if (term->osc_strlen >= 7) {
\r
4196 palette_set(term->frontend, term->osc_string[0],
\r
4197 term->osc_string[1] * 16 + term->osc_string[2],
\r
4198 term->osc_string[3] * 16 + term->osc_string[4],
\r
4199 term->osc_string[5] * 16 + term->osc_string[6]);
\r
4200 term_invalidate(term);
\r
4201 term->termstate = TOPLEVEL;
\r
4217 term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
\r
4220 term->termstate = OSC_STRING;
\r
4221 term->osc_strlen = 0;
\r
4225 term->termstate = TOPLEVEL;
\r
4226 seen_disp_event(term);
\r
4229 move(term, term->curs.x, term->curs.y - 1, 1);
\r
4232 move(term, term->curs.x, term->curs.y + 1, 1);
\r
4235 move(term, term->curs.x + 1, term->curs.y, 1);
\r
4238 move(term, term->curs.x - 1, term->curs.y, 1);
\r
4241 * From the VT100 Manual
\r
4242 * NOTE: The special graphics characters in the VT100
\r
4243 * are different from those in the VT52
\r
4245 * From VT102 manual:
\r
4246 * 137 _ Blank - Same
\r
4247 * 140 ` Reserved - Humm.
\r
4248 * 141 a Solid rectangle - Similar
\r
4249 * 142 b 1/ - Top half of fraction for the
\r
4250 * 143 c 3/ - subscript numbers below.
\r
4253 * 146 f Degrees - Same
\r
4254 * 147 g Plus or minus - Same
\r
4255 * 150 h Right arrow
\r
4256 * 151 i Ellipsis (dots)
\r
4258 * 153 k Down arrow
\r
4259 * 154 l Bar at scan 0
\r
4260 * 155 m Bar at scan 1
\r
4261 * 156 n Bar at scan 2
\r
4262 * 157 o Bar at scan 3 - Similar
\r
4263 * 160 p Bar at scan 4 - Similar
\r
4264 * 161 q Bar at scan 5 - Similar
\r
4265 * 162 r Bar at scan 6 - Same
\r
4266 * 163 s Bar at scan 7 - Similar
\r
4267 * 164 t Subscript 0
\r
4268 * 165 u Subscript 1
\r
4269 * 166 v Subscript 2
\r
4270 * 167 w Subscript 3
\r
4271 * 170 x Subscript 4
\r
4272 * 171 y Subscript 5
\r
4273 * 172 z Subscript 6
\r
4274 * 173 { Subscript 7
\r
4275 * 174 | Subscript 8
\r
4276 * 175 } Subscript 9
\r
4281 term->cset_attr[term->cset = 0] = CSET_LINEDRW;
\r
4284 term->cset_attr[term->cset = 0] = CSET_ASCII;
\r
4287 move(term, 0, 0, 0);
\r
4290 if (term->curs.y == 0)
\r
4291 scroll(term, 0, term->rows - 1, -1, TRUE);
\r
4292 else if (term->curs.y > 0)
\r
4294 term->wrapnext = FALSE;
\r
4297 erase_lots(term, FALSE, FALSE, TRUE);
\r
4298 term->disptop = 0;
\r
4301 erase_lots(term, TRUE, FALSE, TRUE);
\r
4305 /* XXX Print cursor line */
\r
4308 /* XXX Start controller mode */
\r
4311 /* XXX Stop controller mode */
\r
4315 term->termstate = VT52_Y1;
\r
4319 ldisc_send(term->ldisc, "\033/Z", 3, 0);
\r
4322 term->app_keypad_keys = TRUE;
\r
4325 term->app_keypad_keys = FALSE;
\r
4328 /* XXX This should switch to VT100 mode not current or default
\r
4329 * VT mode. But this will only have effect in a VT220+
\r
4332 term->vt52_mode = FALSE;
\r
4333 term->blink_is_real = term->cfg.blinktext;
\r
4334 term_schedule_tblink(term);
\r
4338 /* XXX Enter auto print mode */
\r
4341 /* XXX Exit auto print mode */
\r
4344 /* XXX Print screen */
\r
4350 /* compatibility(ATARI) */
\r
4351 move(term, 0, 0, 0);
\r
4352 erase_lots(term, FALSE, FALSE, TRUE);
\r
4353 term->disptop = 0;
\r
4356 /* compatibility(ATARI) */
\r
4357 if (term->curs.y <= term->marg_b)
\r
4358 scroll(term, term->curs.y, term->marg_b, -1, FALSE);
\r
4361 /* compatibility(ATARI) */
\r
4362 if (term->curs.y <= term->marg_b)
\r
4363 scroll(term, term->curs.y, term->marg_b, 1, TRUE);
\r
4366 /* compatibility(ATARI) */
\r
4367 term->termstate = VT52_FG;
\r
4370 /* compatibility(ATARI) */
\r
4371 term->termstate = VT52_BG;
\r
4374 /* compatibility(ATARI) */
\r
4375 erase_lots(term, FALSE, TRUE, FALSE);
\r
4376 term->disptop = 0;
\r
4379 /* compatibility(ATARI) */
\r
4380 term->cursor_on = TRUE;
\r
4383 /* compatibility(ATARI) */
\r
4384 term->cursor_on = FALSE;
\r
4386 /* case 'j': Save cursor position - broken on ST */
\r
4387 /* case 'k': Restore cursor position */
\r
4389 /* compatibility(ATARI) */
\r
4390 erase_lots(term, TRUE, TRUE, TRUE);
\r
4392 term->wrapnext = FALSE;
\r
4395 /* compatibility(ATARI) */
\r
4396 erase_lots(term, TRUE, TRUE, FALSE);
\r
4399 /* compatibility(ATARI) */
\r
4400 term->curr_attr |= ATTR_REVERSE;
\r
4403 /* compatibility(ATARI) */
\r
4404 term->curr_attr &= ~ATTR_REVERSE;
\r
4406 case 'v': /* wrap Autowrap on - Wyse style */
\r
4407 /* compatibility(ATARI) */
\r
4410 case 'w': /* Autowrap off */
\r
4411 /* compatibility(ATARI) */
\r
4416 /* compatibility(OTHER) */
\r
4417 term->vt52_bold = FALSE;
\r
4418 term->curr_attr = ATTR_DEFAULT;
\r
4419 set_erase_char(term);
\r
4422 /* compatibility(VI50) */
\r
4423 term->curr_attr |= ATTR_UNDER;
\r
4426 /* compatibility(VI50) */
\r
4427 term->curr_attr &= ~ATTR_UNDER;
\r
4430 /* compatibility(VI50) */
\r
4431 term->vt52_bold = TRUE;
\r
4432 term->curr_attr |= ATTR_BOLD;
\r
4435 /* compatibility(VI50) */
\r
4436 term->vt52_bold = FALSE;
\r
4437 term->curr_attr &= ~ATTR_BOLD;
\r
4443 term->termstate = VT52_Y2;
\r
4444 move(term, term->curs.x, c - ' ', 0);
\r
4447 term->termstate = TOPLEVEL;
\r
4448 move(term, c - ' ', term->curs.y, 0);
\r
4453 term->termstate = TOPLEVEL;
\r
4454 term->curr_attr &= ~ATTR_FGMASK;
\r
4455 term->curr_attr &= ~ATTR_BOLD;
\r
4456 term->curr_attr |= (c & 0xF) << ATTR_FGSHIFT;
\r
4457 set_erase_char(term);
\r
4460 term->termstate = TOPLEVEL;
\r
4461 term->curr_attr &= ~ATTR_BGMASK;
\r
4462 term->curr_attr &= ~ATTR_BLINK;
\r
4463 term->curr_attr |= (c & 0xF) << ATTR_BGSHIFT;
\r
4464 set_erase_char(term);
\r
4467 default: break; /* placate gcc warning about enum use */
\r
4469 if (term->selstate != NO_SELECTION) {
\r
4470 pos cursplus = term->curs;
\r
4472 check_selection(term, term->curs, cursplus);
\r
4476 term_print_flush(term);
\r
4477 if (term->cfg.logflush)
\r
4478 logflush(term->logctx);
\r
4482 * To prevent having to run the reasonably tricky bidi algorithm
\r
4483 * too many times, we maintain a cache of the last lineful of data
\r
4484 * fed to the algorithm on each line of the display.
\r
4486 static int term_bidi_cache_hit(Terminal *term, int line,
\r
4487 termchar *lbefore, int width)
\r
4491 if (!term->pre_bidi_cache)
\r
4492 return FALSE; /* cache doesn't even exist yet! */
\r
4494 if (line >= term->bidi_cache_size)
\r
4495 return FALSE; /* cache doesn't have this many lines */
\r
4497 if (!term->pre_bidi_cache[line].chars)
\r
4498 return FALSE; /* cache doesn't contain _this_ line */
\r
4500 if (term->pre_bidi_cache[line].width != width)
\r
4501 return FALSE; /* line is wrong width */
\r
4503 for (i = 0; i < width; i++)
\r
4504 if (!termchars_equal(term->pre_bidi_cache[line].chars+i, lbefore+i))
\r
4505 return FALSE; /* line doesn't match cache */
\r
4507 return TRUE; /* it didn't match. */
\r
4510 static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore,
\r
4511 termchar *lafter, bidi_char *wcTo,
\r
4512 int width, int size)
\r
4516 if (!term->pre_bidi_cache || term->bidi_cache_size <= line) {
\r
4517 int j = term->bidi_cache_size;
\r
4518 term->bidi_cache_size = line+1;
\r
4519 term->pre_bidi_cache = sresize(term->pre_bidi_cache,
\r
4520 term->bidi_cache_size,
\r
4521 struct bidi_cache_entry);
\r
4522 term->post_bidi_cache = sresize(term->post_bidi_cache,
\r
4523 term->bidi_cache_size,
\r
4524 struct bidi_cache_entry);
\r
4525 while (j < term->bidi_cache_size) {
\r
4526 term->pre_bidi_cache[j].chars =
\r
4527 term->post_bidi_cache[j].chars = NULL;
\r
4528 term->pre_bidi_cache[j].width =
\r
4529 term->post_bidi_cache[j].width = -1;
\r
4530 term->pre_bidi_cache[j].forward =
\r
4531 term->post_bidi_cache[j].forward = NULL;
\r
4532 term->pre_bidi_cache[j].backward =
\r
4533 term->post_bidi_cache[j].backward = NULL;
\r
4538 sfree(term->pre_bidi_cache[line].chars);
\r
4539 sfree(term->post_bidi_cache[line].chars);
\r
4540 sfree(term->post_bidi_cache[line].forward);
\r
4541 sfree(term->post_bidi_cache[line].backward);
\r
4543 term->pre_bidi_cache[line].width = width;
\r
4544 term->pre_bidi_cache[line].chars = snewn(size, termchar);
\r
4545 term->post_bidi_cache[line].width = width;
\r
4546 term->post_bidi_cache[line].chars = snewn(size, termchar);
\r
4547 term->post_bidi_cache[line].forward = snewn(width, int);
\r
4548 term->post_bidi_cache[line].backward = snewn(width, int);
\r
4550 memcpy(term->pre_bidi_cache[line].chars, lbefore, size * TSIZE);
\r
4551 memcpy(term->post_bidi_cache[line].chars, lafter, size * TSIZE);
\r
4552 memset(term->post_bidi_cache[line].forward, 0, width * sizeof(int));
\r
4553 memset(term->post_bidi_cache[line].backward, 0, width * sizeof(int));
\r
4555 for (i = 0; i < width; i++) {
\r
4556 int p = wcTo[i].index;
\r
4558 assert(0 <= p && p < width);
\r
4560 term->post_bidi_cache[line].backward[i] = p;
\r
4561 term->post_bidi_cache[line].forward[p] = i;
\r
4566 * Prepare the bidi information for a screen line. Returns the
\r
4567 * transformed list of termchars, or NULL if no transformation at
\r
4568 * all took place (because bidi is disabled). If return was
\r
4569 * non-NULL, auxiliary information such as the forward and reverse
\r
4570 * mappings of permutation position are available in
\r
4571 * term->post_bidi_cache[scr_y].*.
\r
4573 static termchar *term_bidi_line(Terminal *term, struct termline *ldata,
\r
4579 /* Do Arabic shaping and bidi. */
\r
4580 if(!term->cfg.bidi || !term->cfg.arabicshaping) {
\r
4582 if (!term_bidi_cache_hit(term, scr_y, ldata->chars, term->cols)) {
\r
4584 if (term->wcFromTo_size < term->cols) {
\r
4585 term->wcFromTo_size = term->cols;
\r
4586 term->wcFrom = sresize(term->wcFrom, term->wcFromTo_size,
\r
4588 term->wcTo = sresize(term->wcTo, term->wcFromTo_size,
\r
4592 for(it=0; it<term->cols ; it++)
\r
4594 unsigned long uc = (ldata->chars[it].chr);
\r
4596 switch (uc & CSET_MASK) {
\r
4597 case CSET_LINEDRW:
\r
4598 if (!term->cfg.rawcnp) {
\r
4599 uc = term->ucsdata->unitab_xterm[uc & 0xFF];
\r
4603 uc = term->ucsdata->unitab_line[uc & 0xFF];
\r
4606 uc = term->ucsdata->unitab_scoacs[uc&0xFF];
\r
4609 switch (uc & CSET_MASK) {
\r
4611 uc = term->ucsdata->unitab_font[uc & 0xFF];
\r
4614 uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
\r
4618 term->wcFrom[it].origwc = term->wcFrom[it].wc =
\r
4620 term->wcFrom[it].index = it;
\r
4623 if(!term->cfg.bidi)
\r
4624 do_bidi(term->wcFrom, term->cols);
\r
4626 /* this is saved iff done from inside the shaping */
\r
4627 if(!term->cfg.bidi && term->cfg.arabicshaping)
\r
4628 for(it=0; it<term->cols; it++)
\r
4629 term->wcTo[it] = term->wcFrom[it];
\r
4631 if(!term->cfg.arabicshaping)
\r
4632 do_shape(term->wcFrom, term->wcTo, term->cols);
\r
4634 if (term->ltemp_size < ldata->size) {
\r
4635 term->ltemp_size = ldata->size;
\r
4636 term->ltemp = sresize(term->ltemp, term->ltemp_size,
\r
4640 memcpy(term->ltemp, ldata->chars, ldata->size * TSIZE);
\r
4642 for(it=0; it<term->cols ; it++)
\r
4644 term->ltemp[it] = ldata->chars[term->wcTo[it].index];
\r
4645 if (term->ltemp[it].cc_next)
\r
4646 term->ltemp[it].cc_next -=
\r
4647 it - term->wcTo[it].index;
\r
4649 if (term->wcTo[it].origwc != term->wcTo[it].wc)
\r
4650 term->ltemp[it].chr = term->wcTo[it].wc;
\r
4652 term_bidi_cache_store(term, scr_y, ldata->chars,
\r
4653 term->ltemp, term->wcTo,
\r
4654 term->cols, ldata->size);
\r
4656 lchars = term->ltemp;
\r
4658 lchars = term->post_bidi_cache[scr_y].chars;
\r
4668 * Given a context, update the window. Out of paranoia, we don't
\r
4669 * allow WM_PAINT responses to do scrolling optimisations.
\r
4671 static void do_paint(Terminal *term, Context ctx, int may_optimise)
\r
4673 int i, j, our_curs_y, our_curs_x;
\r
4678 #ifdef OPTIMISE_SCROLL
\r
4679 struct scrollregion *sr;
\r
4680 #endif /* OPTIMISE_SCROLL */
\r
4681 termchar *newline;
\r
4684 ch = snewn(chlen, wchar_t);
\r
4686 newline = snewn(term->cols, termchar);
\r
4688 rv = (!term->rvideo ^ !term->in_vbell ? ATTR_REVERSE : 0);
\r
4691 * screen array, disptop, scrtop,
\r
4693 * cfg.blinkpc, blink_is_real, tblinker,
\r
4694 * curs.y, curs.x, cblinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
\r
4697 /* Has the cursor position or type changed ? */
\r
4698 if (term->cursor_on) {
\r
4699 if (term->has_focus) {
\r
4700 if (term->cblinker || !term->cfg.blink_cur)
\r
4701 cursor = TATTR_ACTCURS;
\r
4705 cursor = TATTR_PASCURS;
\r
4706 if (term->wrapnext)
\r
4707 cursor |= TATTR_RIGHTCURS;
\r
4710 our_curs_y = term->curs.y - term->disptop;
\r
4713 * Adjust the cursor position:
\r
4715 * - in the case where it's resting on the right-hand half
\r
4716 * of a CJK wide character. xterm's behaviour here,
\r
4717 * which seems adequate to me, is to display the cursor
\r
4718 * covering the _whole_ character, exactly as if it were
\r
4719 * one space to the left.
\r
4721 termline *ldata = lineptr(term->curs.y);
\r
4724 our_curs_x = term->curs.x;
\r
4726 if ( (lchars = term_bidi_line(term, ldata, our_curs_y)) != NULL) {
\r
4727 our_curs_x = term->post_bidi_cache[our_curs_y].forward[our_curs_x];
\r
4729 lchars = ldata->chars;
\r
4731 if (our_curs_x > 0 &&
\r
4732 lchars[our_curs_x].chr == UCSWIDE)
\r
4739 * If the cursor is not where it was last time we painted, and
\r
4740 * its previous position is visible on screen, invalidate its
\r
4741 * previous position.
\r
4743 if (term->dispcursy >= 0 &&
\r
4744 (term->curstype != cursor ||
\r
4745 term->dispcursy != our_curs_y ||
\r
4746 term->dispcursx != our_curs_x)) {
\r
4747 termchar *dispcurs = term->disptext[term->dispcursy]->chars +
\r
4750 if (term->dispcursx > 0 && dispcurs->chr == UCSWIDE)
\r
4751 dispcurs[-1].attr |= ATTR_INVALID;
\r
4752 if (term->dispcursx < term->cols-1 && dispcurs[1].chr == UCSWIDE)
\r
4753 dispcurs[1].attr |= ATTR_INVALID;
\r
4754 dispcurs->attr |= ATTR_INVALID;
\r
4756 term->curstype = 0;
\r
4758 term->dispcursx = term->dispcursy = -1;
\r
4760 #ifdef OPTIMISE_SCROLL
\r
4762 sr = term->scrollhead;
\r
4764 struct scrollregion *next = sr->next;
\r
4765 do_scroll(ctx, sr->topline, sr->botline, sr->lines);
\r
4769 term->scrollhead = term->scrolltail = NULL;
\r
4770 #endif /* OPTIMISE_SCROLL */
\r
4772 /* The normal screen data */
\r
4773 for (i = 0; i < term->rows; i++) {
\r
4776 int dirty_line, dirty_run, selected;
\r
4777 unsigned long attr = 0, cset = 0;
\r
4780 int last_run_dirty = 0;
\r
4781 int laststart, dirtyrect;
\r
4784 scrpos.y = i + term->disptop;
\r
4785 ldata = lineptr(scrpos.y);
\r
4787 /* Do Arabic shaping and bidi. */
\r
4788 lchars = term_bidi_line(term, ldata, i);
\r
4790 backward = term->post_bidi_cache[i].backward;
\r
4792 lchars = ldata->chars;
\r
4797 * First loop: work along the line deciding what we want
\r
4798 * each character cell to look like.
\r
4800 for (j = 0; j < term->cols; j++) {
\r
4801 unsigned long tattr, tchar;
\r
4802 termchar *d = lchars + j;
\r
4803 scrpos.x = backward ? backward[j] : j;
\r
4808 if (!term->cfg.ansi_colour)
\r
4809 tattr = (tattr & ~(ATTR_FGMASK | ATTR_BGMASK)) |
\r
4810 ATTR_DEFFG | ATTR_DEFBG;
\r
4812 if (!term->cfg.xterm_256_colour) {
\r
4814 colour = (tattr & ATTR_FGMASK) >> ATTR_FGSHIFT;
\r
4815 if (colour >= 16 && colour < 256)
\r
4816 tattr = (tattr &~ ATTR_FGMASK) | ATTR_DEFFG;
\r
4817 colour = (tattr & ATTR_BGMASK) >> ATTR_BGSHIFT;
\r
4818 if (colour >= 16 && colour < 256)
\r
4819 tattr = (tattr &~ ATTR_BGMASK) | ATTR_DEFBG;
\r
4822 switch (tchar & CSET_MASK) {
\r
4824 tchar = term->ucsdata->unitab_line[tchar & 0xFF];
\r
4826 case CSET_LINEDRW:
\r
4827 tchar = term->ucsdata->unitab_xterm[tchar & 0xFF];
\r
4829 case CSET_SCOACS:
\r
4830 tchar = term->ucsdata->unitab_scoacs[tchar&0xFF];
\r
4833 if (j < term->cols-1 && d[1].chr == UCSWIDE)
\r
4834 tattr |= ATTR_WIDE;
\r
4836 /* Video reversing things */
\r
4837 if (term->selstate == DRAGGING || term->selstate == SELECTED) {
\r
4838 if (term->seltype == LEXICOGRAPHIC)
\r
4839 selected = (posle(term->selstart, scrpos) &&
\r
4840 poslt(scrpos, term->selend));
\r
4842 selected = (posPle(term->selstart, scrpos) &&
\r
4843 posPlt(scrpos, term->selend));
\r
4846 tattr = (tattr ^ rv
\r
4847 ^ (selected ? ATTR_REVERSE : 0));
\r
4849 /* 'Real' blinking ? */
\r
4850 if (term->blink_is_real && (tattr & ATTR_BLINK)) {
\r
4851 if (term->has_focus && term->tblinker) {
\r
4852 tchar = term->ucsdata->unitab_line[(unsigned char)' '];
\r
4854 tattr &= ~ATTR_BLINK;
\r
4858 * Check the font we'll _probably_ be using to see if
\r
4859 * the character is wide when we don't want it to be.
\r
4861 if (tchar != term->disptext[i]->chars[j].chr ||
\r
4862 tattr != (term->disptext[i]->chars[j].attr &~
\r
4863 (ATTR_NARROW | DATTR_MASK))) {
\r
4864 if ((tattr & ATTR_WIDE) == 0 && char_width(ctx, tchar) == 2)
\r
4865 tattr |= ATTR_NARROW;
\r
4866 } else if (term->disptext[i]->chars[j].attr & ATTR_NARROW)
\r
4867 tattr |= ATTR_NARROW;
\r
4869 if (i == our_curs_y && j == our_curs_x) {
\r
4871 term->curstype = cursor;
\r
4872 term->dispcursx = j;
\r
4873 term->dispcursy = i;
\r
4876 /* FULL-TERMCHAR */
\r
4877 newline[j].attr = tattr;
\r
4878 newline[j].chr = tchar;
\r
4879 /* Combining characters are still read from lchars */
\r
4880 newline[j].cc_next = 0;
\r
4884 * Now loop over the line again, noting where things have
\r
4887 * During this loop, we keep track of where we last saw
\r
4888 * DATTR_STARTRUN. Any mismatch automatically invalidates
\r
4889 * _all_ of the containing run that was last printed: that
\r
4890 * is, any rectangle that was drawn in one go in the
\r
4891 * previous update should be either left completely alone
\r
4892 * or overwritten in its entirety. This, along with the
\r
4893 * expectation that front ends clip all text runs to their
\r
4894 * bounding rectangle, should solve any possible problems
\r
4895 * with fonts that overflow their character cells.
\r
4898 dirtyrect = FALSE;
\r
4899 for (j = 0; j < term->cols; j++) {
\r
4900 if (term->disptext[i]->chars[j].attr & DATTR_STARTRUN) {
\r
4902 dirtyrect = FALSE;
\r
4905 if (term->disptext[i]->chars[j].chr != newline[j].chr ||
\r
4906 (term->disptext[i]->chars[j].attr &~ DATTR_MASK)
\r
4907 != newline[j].attr) {
\r
4911 for (k = laststart; k < j; k++)
\r
4912 term->disptext[i]->chars[k].attr |= ATTR_INVALID;
\r
4919 term->disptext[i]->chars[j].attr |= ATTR_INVALID;
\r
4923 * Finally, loop once more and actually do the drawing.
\r
4925 dirty_run = dirty_line = (ldata->lattr !=
\r
4926 term->disptext[i]->lattr);
\r
4927 term->disptext[i]->lattr = ldata->lattr;
\r
4929 for (j = 0; j < term->cols; j++) {
\r
4930 unsigned long tattr, tchar;
\r
4931 int break_run, do_copy;
\r
4932 termchar *d = lchars + j;
\r
4934 tattr = newline[j].attr;
\r
4935 tchar = newline[j].chr;
\r
4937 if ((term->disptext[i]->chars[j].attr ^ tattr) & ATTR_WIDE)
\r
4938 dirty_line = TRUE;
\r
4940 break_run = ((tattr ^ attr) & term->attr_mask) != 0;
\r
4942 /* Special hack for VT100 Linedraw glyphs */
\r
4943 if ((tchar >= 0x23BA && tchar <= 0x23BD) ||
\r
4944 (j > 0 && (newline[j-1].chr >= 0x23BA &&
\r
4945 newline[j-1].chr <= 0x23BD)))
\r
4949 * Separate out sequences of characters that have the
\r
4950 * same CSET, if that CSET is a magic one.
\r
4952 if (CSET_OF(tchar) != cset)
\r
4956 * Break on both sides of any combined-character cell.
\r
4958 if (d->cc_next != 0 ||
\r
4959 (j > 0 && d[-1].cc_next != 0))
\r
4962 if (!term->ucsdata->dbcs_screenfont && !dirty_line) {
\r
4963 if (term->disptext[i]->chars[j].chr == tchar &&
\r
4964 (term->disptext[i]->chars[j].attr &~ DATTR_MASK) == tattr)
\r
4966 else if (!dirty_run && ccount == 1)
\r
4971 if ((dirty_run || last_run_dirty) && ccount > 0) {
\r
4972 do_text(ctx, start, i, ch, ccount, attr,
\r
4974 if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
\r
4975 do_cursor(ctx, start, i, ch, ccount, attr,
\r
4981 cset = CSET_OF(tchar);
\r
4982 if (term->ucsdata->dbcs_screenfont)
\r
4983 last_run_dirty = dirty_run;
\r
4984 dirty_run = dirty_line;
\r
4988 if (!termchars_equal_override(&term->disptext[i]->chars[j],
\r
4989 d, tchar, tattr)) {
\r
4994 if (ccount >= chlen) {
\r
4995 chlen = ccount + 256;
\r
4996 ch = sresize(ch, chlen, wchar_t);
\r
4998 ch[ccount++] = (wchar_t) tchar;
\r
5003 while (dd->cc_next) {
\r
5004 unsigned long schar;
\r
5006 dd += dd->cc_next;
\r
5009 switch (schar & CSET_MASK) {
\r
5011 schar = term->ucsdata->unitab_line[schar & 0xFF];
\r
5013 case CSET_LINEDRW:
\r
5014 schar = term->ucsdata->unitab_xterm[schar & 0xFF];
\r
5017 schar = term->ucsdata->unitab_scoacs[schar&0xFF];
\r
5021 if (ccount >= chlen) {
\r
5022 chlen = ccount + 256;
\r
5023 ch = sresize(ch, chlen, wchar_t);
\r
5025 ch[ccount++] = (wchar_t) schar;
\r
5028 attr |= TATTR_COMBINING;
\r
5032 copy_termchar(term->disptext[i], j, d);
\r
5033 term->disptext[i]->chars[j].chr = tchar;
\r
5034 term->disptext[i]->chars[j].attr = tattr;
\r
5036 term->disptext[i]->chars[j].attr |= DATTR_STARTRUN;
\r
5039 /* If it's a wide char step along to the next one. */
\r
5040 if (tattr & ATTR_WIDE) {
\r
5041 if (++j < term->cols) {
\r
5044 * By construction above, the cursor should not
\r
5045 * be on the right-hand half of this character.
\r
5048 assert(!(i == our_curs_y && j == our_curs_x));
\r
5049 if (!termchars_equal(&term->disptext[i]->chars[j], d))
\r
5051 copy_termchar(term->disptext[i], j, d);
\r
5055 if (dirty_run && ccount > 0) {
\r
5056 do_text(ctx, start, i, ch, ccount, attr,
\r
5058 if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
\r
5059 do_cursor(ctx, start, i, ch, ccount, attr,
\r
5071 * Invalidate the whole screen so it will be repainted in full.
\r
5073 void term_invalidate(Terminal *term)
\r
5077 for (i = 0; i < term->rows; i++)
\r
5078 for (j = 0; j < term->cols; j++)
\r
5079 term->disptext[i]->chars[j].attr |= ATTR_INVALID;
\r
5081 term_schedule_update(term);
\r
5085 * Paint the window in response to a WM_PAINT message.
\r
5087 void term_paint(Terminal *term, Context ctx,
\r
5088 int left, int top, int right, int bottom, int immediately)
\r
5091 if (left < 0) left = 0;
\r
5092 if (top < 0) top = 0;
\r
5093 if (right >= term->cols) right = term->cols-1;
\r
5094 if (bottom >= term->rows) bottom = term->rows-1;
\r
5096 for (i = top; i <= bottom && i < term->rows; i++) {
\r
5097 if ((term->disptext[i]->lattr & LATTR_MODE) == LATTR_NORM)
\r
5098 for (j = left; j <= right && j < term->cols; j++)
\r
5099 term->disptext[i]->chars[j].attr |= ATTR_INVALID;
\r
5101 for (j = left / 2; j <= right / 2 + 1 && j < term->cols; j++)
\r
5102 term->disptext[i]->chars[j].attr |= ATTR_INVALID;
\r
5105 if (immediately) {
\r
5106 do_paint (term, ctx, FALSE);
\r
5108 term_schedule_update(term);
\r
5113 * Attempt to scroll the scrollback. The second parameter gives the
\r
5114 * position we want to scroll to; the first is +1 to denote that
\r
5115 * this position is relative to the beginning of the scrollback, -1
\r
5116 * to denote it is relative to the end, and 0 to denote that it is
\r
5117 * relative to the current position.
\r
5119 void term_scroll(Terminal *term, int rel, int where)
\r
5121 int sbtop = -sblines(term);
\r
5122 #ifdef OPTIMISE_SCROLL
\r
5123 int olddisptop = term->disptop;
\r
5125 #endif /* OPTIMISE_SCROLL */
\r
5127 term->disptop = (rel < 0 ? 0 : rel > 0 ? sbtop : term->disptop) + where;
\r
5128 if (term->disptop < sbtop)
\r
5129 term->disptop = sbtop;
\r
5130 if (term->disptop > 0)
\r
5131 term->disptop = 0;
\r
5132 update_sbar(term);
\r
5133 #ifdef OPTIMISE_SCROLL
\r
5134 shift = (term->disptop - olddisptop);
\r
5135 if (shift < term->rows && shift > -term->rows)
\r
5136 scroll_display(term, 0, term->rows - 1, shift);
\r
5137 #endif /* OPTIMISE_SCROLL */
\r
5138 term_update(term);
\r
5142 * Scroll the scrollback to centre it on the beginning or end of the
\r
5143 * current selection, if any.
\r
5145 void term_scroll_to_selection(Terminal *term, int which_end)
\r
5149 int sbtop = -sblines(term);
\r
5151 if (term->selstate != SELECTED)
\r
5154 target = term->selend;
\r
5156 target = term->selstart;
\r
5158 y = target.y - term->rows/2;
\r
5163 term_scroll(term, -1, y);
\r
5167 * Helper routine for clipme(): growing buffer.
\r
5170 int buflen; /* amount of allocated space in textbuf/attrbuf */
\r
5171 int bufpos; /* amount of actual data */
\r
5172 wchar_t *textbuf; /* buffer for copied text */
\r
5173 wchar_t *textptr; /* = textbuf + bufpos (current insertion point) */
\r
5174 int *attrbuf; /* buffer for copied attributes */
\r
5175 int *attrptr; /* = attrbuf + bufpos */
\r
5178 static void clip_addchar(clip_workbuf *b, wchar_t chr, int attr)
\r
5180 if (b->bufpos >= b->buflen) {
\r
5182 b->textbuf = sresize(b->textbuf, b->buflen, wchar_t);
\r
5183 b->textptr = b->textbuf + b->bufpos;
\r
5184 b->attrbuf = sresize(b->attrbuf, b->buflen, int);
\r
5185 b->attrptr = b->attrbuf + b->bufpos;
\r
5187 *b->textptr++ = chr;
\r
5188 *b->attrptr++ = attr;
\r
5192 static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel)
\r
5198 buf.buflen = 5120;
\r
5200 buf.textptr = buf.textbuf = snewn(buf.buflen, wchar_t);
\r
5201 buf.attrptr = buf.attrbuf = snewn(buf.buflen, int);
\r
5203 old_top_x = top.x; /* needed for rect==1 */
\r
5205 while (poslt(top, bottom)) {
\r
5207 termline *ldata = lineptr(top.y);
\r
5211 * nlpos will point at the maximum position on this line we
\r
5212 * should copy up to. So we start it at the end of the
\r
5216 nlpos.x = term->cols;
\r
5219 * ... move it backwards if there's unused space at the end
\r
5220 * of the line (and also set `nl' if this is the case,
\r
5221 * because in normal selection mode this means we need a
\r
5222 * newline at the end)...
\r
5224 if (!(ldata->lattr & LATTR_WRAPPED)) {
\r
5226 IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) &&
\r
5227 !ldata->chars[nlpos.x - 1].cc_next &&
\r
5228 poslt(top, nlpos))
\r
5230 if (poslt(nlpos, bottom))
\r
5232 } else if (ldata->lattr & LATTR_WRAPPED2) {
\r
5233 /* Ignore the last char on the line in a WRAPPED2 line. */
\r
5238 * ... and then clip it to the terminal x coordinate if
\r
5239 * we're doing rectangular selection. (In this case we
\r
5240 * still did the above, so that copying e.g. the right-hand
\r
5241 * column from a table doesn't fill with spaces on the
\r
5245 if (nlpos.x > bottom.x)
\r
5246 nlpos.x = bottom.x;
\r
5247 nl = (top.y < bottom.y);
\r
5250 while (poslt(top, bottom) && poslt(top, nlpos)) {
\r
5252 char cbuf[16], *p;
\r
5253 sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF));
\r
5255 wchar_t cbuf[16], *p;
\r
5259 if (ldata->chars[x].chr == UCSWIDE) {
\r
5265 int uc = ldata->chars[x].chr;
\r
5266 attr = ldata->chars[x].attr;
\r
5268 switch (uc & CSET_MASK) {
\r
5269 case CSET_LINEDRW:
\r
5270 if (!term->cfg.rawcnp) {
\r
5271 uc = term->ucsdata->unitab_xterm[uc & 0xFF];
\r
5275 uc = term->ucsdata->unitab_line[uc & 0xFF];
\r
5278 uc = term->ucsdata->unitab_scoacs[uc&0xFF];
\r
5281 switch (uc & CSET_MASK) {
\r
5283 uc = term->ucsdata->unitab_font[uc & 0xFF];
\r
5286 uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
\r
5290 c = (uc & ~CSET_MASK);
\r
5291 #ifdef PLATFORM_IS_UTF16
\r
5292 if (uc > 0x10000 && uc < 0x110000) {
\r
5293 cbuf[0] = 0xD800 | ((uc - 0x10000) >> 10);
\r
5294 cbuf[1] = 0xDC00 | ((uc - 0x10000) & 0x3FF);
\r
5303 if (DIRECT_FONT(uc)) {
\r
5304 if (c >= ' ' && c != 0x7F) {
\r
5308 if (is_dbcs_leadbyte(term->ucsdata->font_codepage, (BYTE) c)) {
\r
5310 buf[1] = (char) (0xFF & ldata->chars[top.x + 1].chr);
\r
5311 rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 2, wbuf, 4);
\r
5315 rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 1, wbuf, 4);
\r
5319 memcpy(cbuf, wbuf, rv * sizeof(wchar_t));
\r
5326 for (p = cbuf; *p; p++)
\r
5327 clip_addchar(&buf, *p, attr);
\r
5329 if (ldata->chars[x].cc_next)
\r
5330 x += ldata->chars[x].cc_next;
\r
5338 for (i = 0; i < sel_nl_sz; i++)
\r
5339 clip_addchar(&buf, sel_nl[i], 0);
\r
5342 top.x = rect ? old_top_x : 0;
\r
5346 #if SELECTION_NUL_TERMINATED
\r
5347 clip_addchar(&buf, 0, 0);
\r
5349 /* Finally, transfer all that to the clipboard. */
\r
5350 write_clip(term->frontend, buf.textbuf, buf.attrbuf, buf.bufpos, desel);
\r
5351 sfree(buf.textbuf);
\r
5352 sfree(buf.attrbuf);
\r
5355 void term_copyall(Terminal *term)
\r
5359 tree234 *screen = term->screen;
\r
5360 top.y = -sblines(term);
\r
5362 bottom.y = find_last_nonempty_line(term, screen);
\r
5363 bottom.x = term->cols;
\r
5364 clipme(term, top, bottom, 0, TRUE);
\r
5368 * The wordness array is mainly for deciding the disposition of the
\r
5369 * US-ASCII characters.
\r
5371 static int wordtype(Terminal *term, int uc)
\r
5374 int start, end, ctype;
\r
5376 static const struct ucsword ucs_words[] = {
\r
5382 0x037e, 0x037e, 1}, /* Greek question mark */
\r
5384 0x0387, 0x0387, 1}, /* Greek ano teleia */
\r
5386 0x055a, 0x055f, 1}, /* Armenian punctuation */
\r
5388 0x0589, 0x0589, 1}, /* Armenian full stop */
\r
5390 0x0700, 0x070d, 1}, /* Syriac punctuation */
\r
5392 0x104a, 0x104f, 1}, /* Myanmar punctuation */
\r
5394 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
\r
5396 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
\r
5398 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
\r
5400 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
\r
5402 0x1800, 0x180a, 1}, /* Mongolian punctuation */
\r
5404 0x2000, 0x200a, 0}, /* Various spaces */
\r
5406 0x2070, 0x207f, 2}, /* superscript */
\r
5408 0x2080, 0x208f, 2}, /* subscript */
\r
5410 0x200b, 0x27ff, 1}, /* punctuation and symbols */
\r
5412 0x3000, 0x3000, 0}, /* ideographic space */
\r
5414 0x3001, 0x3020, 1}, /* ideographic punctuation */
\r
5416 0x303f, 0x309f, 3}, /* Hiragana */
\r
5418 0x30a0, 0x30ff, 3}, /* Katakana */
\r
5420 0x3300, 0x9fff, 3}, /* CJK Ideographs */
\r
5422 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
\r
5424 0xf900, 0xfaff, 3}, /* CJK Ideographs */
\r
5426 0xfe30, 0xfe6b, 1}, /* punctuation forms */
\r
5428 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
\r
5430 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
\r
5432 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
\r
5434 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
\r
5436 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
\r
5440 const struct ucsword *wptr;
\r
5442 switch (uc & CSET_MASK) {
\r
5443 case CSET_LINEDRW:
\r
5444 uc = term->ucsdata->unitab_xterm[uc & 0xFF];
\r
5447 uc = term->ucsdata->unitab_line[uc & 0xFF];
\r
5449 case CSET_SCOACS:
\r
5450 uc = term->ucsdata->unitab_scoacs[uc&0xFF];
\r
5453 switch (uc & CSET_MASK) {
\r
5455 uc = term->ucsdata->unitab_font[uc & 0xFF];
\r
5458 uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
\r
5462 /* For DBCS fonts I can't do anything useful. Even this will sometimes
\r
5463 * fail as there's such a thing as a double width space. :-(
\r
5465 if (term->ucsdata->dbcs_screenfont &&
\r
5466 term->ucsdata->font_codepage == term->ucsdata->line_codepage)
\r
5467 return (uc != ' ');
\r
5470 return term->wordness[uc];
\r
5472 for (wptr = ucs_words; wptr->start; wptr++) {
\r
5473 if (uc >= wptr->start && uc <= wptr->end)
\r
5474 return wptr->ctype;
\r
5481 * Spread the selection outwards according to the selection mode.
\r
5483 static pos sel_spread_half(Terminal *term, pos p, int dir)
\r
5487 int topy = -sblines(term);
\r
5489 ldata = lineptr(p.y);
\r
5491 switch (term->selmode) {
\r
5494 * In this mode, every character is a separate unit, except
\r
5495 * for runs of spaces at the end of a non-wrapping line.
\r
5497 if (!(ldata->lattr & LATTR_WRAPPED)) {
\r
5498 termchar *q = ldata->chars + term->cols;
\r
5499 while (q > ldata->chars &&
\r
5500 IS_SPACE_CHR(q[-1].chr) && !q[-1].cc_next)
\r
5502 if (q == ldata->chars + term->cols)
\r
5504 if (p.x >= q - ldata->chars)
\r
5505 p.x = (dir == -1 ? q - ldata->chars : term->cols - 1);
\r
5510 * In this mode, the units are maximal runs of characters
\r
5511 * whose `wordness' has the same value.
\r
5513 wvalue = wordtype(term, UCSGET(ldata->chars, p.x));
\r
5516 int maxcols = (ldata->lattr & LATTR_WRAPPED2 ?
\r
5517 term->cols-1 : term->cols);
\r
5518 if (p.x < maxcols-1) {
\r
5519 if (wordtype(term, UCSGET(ldata->chars, p.x+1)) == wvalue)
\r
5524 if (ldata->lattr & LATTR_WRAPPED) {
\r
5526 ldata2 = lineptr(p.y+1);
\r
5527 if (wordtype(term, UCSGET(ldata2->chars, 0))
\r
5534 unlineptr(ldata2);
\r
5544 if (wordtype(term, UCSGET(ldata->chars, p.x-1)) == wvalue)
\r
5553 ldata2 = lineptr(p.y-1);
\r
5554 maxcols = (ldata2->lattr & LATTR_WRAPPED2 ?
\r
5555 term->cols-1 : term->cols);
\r
5556 if (ldata2->lattr & LATTR_WRAPPED) {
\r
5557 if (wordtype(term, UCSGET(ldata2->chars, maxcols-1))
\r
5564 unlineptr(ldata2);
\r
5575 * In this mode, every line is a unit.
\r
5577 p.x = (dir == -1 ? 0 : term->cols - 1);
\r
5585 static void sel_spread(Terminal *term)
\r
5587 if (term->seltype == LEXICOGRAPHIC) {
\r
5588 term->selstart = sel_spread_half(term, term->selstart, -1);
\r
5589 decpos(term->selend);
\r
5590 term->selend = sel_spread_half(term, term->selend, +1);
\r
5591 incpos(term->selend);
\r
5595 void term_do_paste(Terminal *term)
\r
5600 get_clip(term->frontend, &data, &len);
\r
5601 if (data && len > 0) {
\r
5604 term_seen_key_event(term); /* pasted data counts */
\r
5606 if (term->paste_buffer)
\r
5607 sfree(term->paste_buffer);
\r
5608 term->paste_pos = term->paste_hold = term->paste_len = 0;
\r
5609 term->paste_buffer = snewn(len, wchar_t);
\r
5612 while (p < data + len) {
\r
5613 while (p < data + len &&
\r
5614 !(p <= data + len - sel_nl_sz &&
\r
5615 !memcmp(p, sel_nl, sizeof(sel_nl))))
\r
5620 for (i = 0; i < p - q; i++) {
\r
5621 term->paste_buffer[term->paste_len++] = q[i];
\r
5625 if (p <= data + len - sel_nl_sz &&
\r
5626 !memcmp(p, sel_nl, sizeof(sel_nl))) {
\r
5627 term->paste_buffer[term->paste_len++] = '\015';
\r
5633 /* Assume a small paste will be OK in one go. */
\r
5634 if (term->paste_len < 256) {
\r
5636 luni_send(term->ldisc, term->paste_buffer, term->paste_len, 0);
\r
5637 if (term->paste_buffer)
\r
5638 sfree(term->paste_buffer);
\r
5639 term->paste_buffer = 0;
\r
5640 term->paste_pos = term->paste_hold = term->paste_len = 0;
\r
5643 get_clip(term->frontend, NULL, NULL);
\r
5646 void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked,
\r
5647 Mouse_Action a, int x, int y, int shift, int ctrl, int alt)
\r
5651 int raw_mouse = (term->xterm_mouse &&
\r
5652 !term->cfg.no_mouse_rep &&
\r
5653 !(term->cfg.mouse_override && shift));
\r
5654 int default_seltype;
\r
5658 if (a == MA_DRAG && !raw_mouse)
\r
5659 term_scroll(term, 0, -1);
\r
5661 if (y >= term->rows) {
\r
5662 y = term->rows - 1;
\r
5663 if (a == MA_DRAG && !raw_mouse)
\r
5664 term_scroll(term, 0, +1);
\r
5668 x = term->cols - 1;
\r
5673 if (x >= term->cols)
\r
5674 x = term->cols - 1;
\r
5676 selpoint.y = y + term->disptop;
\r
5677 ldata = lineptr(selpoint.y);
\r
5679 if ((ldata->lattr & LATTR_MODE) != LATTR_NORM)
\r
5683 * Transform x through the bidi algorithm to find the _logical_
\r
5684 * click point from the physical one.
\r
5686 if (term_bidi_line(term, ldata, y) != NULL) {
\r
5687 x = term->post_bidi_cache[y].backward[x];
\r
5694 * If we're in the middle of a selection operation, we ignore raw
\r
5695 * mouse mode until it's done (we must have been not in raw mouse
\r
5696 * mode when it started).
\r
5697 * This makes use of Shift for selection reliable, and avoids the
\r
5698 * host seeing mouse releases for which they never saw corresponding
\r
5702 (term->selstate != ABOUT_TO) && (term->selstate != DRAGGING)) {
\r
5703 int encstate = 0, r, c;
\r
5706 if (term->ldisc) {
\r
5710 encstate = 0x20; /* left button down */
\r
5718 case MBT_WHEEL_UP:
\r
5721 case MBT_WHEEL_DOWN:
\r
5724 default: break; /* placate gcc warning about enum use */
\r
5728 if (term->xterm_mouse == 1)
\r
5734 term->mouse_is_down = 0;
\r
5737 if (term->mouse_is_down == braw)
\r
5739 term->mouse_is_down = braw;
\r
5741 default: break; /* placate gcc warning about enum use */
\r
5750 sprintf(abuf, "\033[M%c%c%c", encstate, c, r);
\r
5751 ldisc_send(term->ldisc, abuf, 6, 0);
\r
5757 * Set the selection type (rectangular or normal) at the start
\r
5758 * of a selection attempt, from the state of Alt.
\r
5760 if (!alt ^ !term->cfg.rect_select)
\r
5761 default_seltype = RECTANGULAR;
\r
5763 default_seltype = LEXICOGRAPHIC;
\r
5765 if (term->selstate == NO_SELECTION) {
\r
5766 term->seltype = default_seltype;
\r
5769 if (bcooked == MBT_SELECT && a == MA_CLICK) {
\r
5771 term->selstate = ABOUT_TO;
\r
5772 term->seltype = default_seltype;
\r
5773 term->selanchor = selpoint;
\r
5774 term->selmode = SM_CHAR;
\r
5775 } else if (bcooked == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) {
\r
5777 term->selmode = (a == MA_2CLK ? SM_WORD : SM_LINE);
\r
5778 term->selstate = DRAGGING;
\r
5779 term->selstart = term->selanchor = selpoint;
\r
5780 term->selend = term->selstart;
\r
5781 incpos(term->selend);
\r
5783 } else if ((bcooked == MBT_SELECT && a == MA_DRAG) ||
\r
5784 (bcooked == MBT_EXTEND && a != MA_RELEASE)) {
\r
5785 if (term->selstate == ABOUT_TO && poseq(term->selanchor, selpoint))
\r
5787 if (bcooked == MBT_EXTEND && a != MA_DRAG &&
\r
5788 term->selstate == SELECTED) {
\r
5789 if (term->seltype == LEXICOGRAPHIC) {
\r
5791 * For normal selection, we extend by moving
\r
5792 * whichever end of the current selection is closer
\r
5795 if (posdiff(selpoint, term->selstart) <
\r
5796 posdiff(term->selend, term->selstart) / 2) {
\r
5797 term->selanchor = term->selend;
\r
5798 decpos(term->selanchor);
\r
5800 term->selanchor = term->selstart;
\r
5804 * For rectangular selection, we have a choice of
\r
5805 * _four_ places to put selanchor and selpoint: the
\r
5806 * four corners of the selection.
\r
5808 if (2*selpoint.x < term->selstart.x + term->selend.x)
\r
5809 term->selanchor.x = term->selend.x-1;
\r
5811 term->selanchor.x = term->selstart.x;
\r
5813 if (2*selpoint.y < term->selstart.y + term->selend.y)
\r
5814 term->selanchor.y = term->selend.y;
\r
5816 term->selanchor.y = term->selstart.y;
\r
5818 term->selstate = DRAGGING;
\r
5820 if (term->selstate != ABOUT_TO && term->selstate != DRAGGING)
\r
5821 term->selanchor = selpoint;
\r
5822 term->selstate = DRAGGING;
\r
5823 if (term->seltype == LEXICOGRAPHIC) {
\r
5825 * For normal selection, we set (selstart,selend) to
\r
5826 * (selpoint,selanchor) in some order.
\r
5828 if (poslt(selpoint, term->selanchor)) {
\r
5829 term->selstart = selpoint;
\r
5830 term->selend = term->selanchor;
\r
5831 incpos(term->selend);
\r
5833 term->selstart = term->selanchor;
\r
5834 term->selend = selpoint;
\r
5835 incpos(term->selend);
\r
5839 * For rectangular selection, we may need to
\r
5840 * interchange x and y coordinates (if the user has
\r
5841 * dragged in the -x and +y directions, or vice versa).
\r
5843 term->selstart.x = min(term->selanchor.x, selpoint.x);
\r
5844 term->selend.x = 1+max(term->selanchor.x, selpoint.x);
\r
5845 term->selstart.y = min(term->selanchor.y, selpoint.y);
\r
5846 term->selend.y = max(term->selanchor.y, selpoint.y);
\r
5849 } else if ((bcooked == MBT_SELECT || bcooked == MBT_EXTEND) &&
\r
5850 a == MA_RELEASE) {
\r
5851 if (term->selstate == DRAGGING) {
\r
5853 * We've completed a selection. We now transfer the
\r
5854 * data to the clipboard.
\r
5856 clipme(term, term->selstart, term->selend,
\r
5857 (term->seltype == RECTANGULAR), FALSE);
\r
5858 term->selstate = SELECTED;
\r
5860 term->selstate = NO_SELECTION;
\r
5861 } else if (bcooked == MBT_PASTE
\r
5863 #if MULTICLICK_ONLY_EVENT
\r
5864 || a == MA_2CLK || a == MA_3CLK
\r
5867 request_paste(term->frontend);
\r
5870 term_update(term);
\r
5873 int format_arrow_key(char *buf, Terminal *term, int xkey, int ctrl)
\r
5877 if (term->vt52_mode)
\r
5878 p += sprintf((char *) p, "\x1B%c", xkey);
\r
5880 int app_flg = (term->app_cursor_keys && !term->cfg.no_applic_c);
\r
5883 * RDB: VT100 & VT102 manuals both state the app cursor
\r
5884 * keys only work if the app keypad is on.
\r
5886 * SGT: That may well be true, but xterm disagrees and so
\r
5887 * does at least one application, so I've #if'ed this out
\r
5888 * and the behaviour is back to PuTTY's original: app
\r
5889 * cursor and app keypad are independently switchable
\r
5890 * modes. If anyone complains about _this_ I'll have to
\r
5891 * put in a configurable option.
\r
5893 if (!term->app_keypad_keys)
\r
5896 /* Useful mapping of Ctrl-arrows */
\r
5898 app_flg = !app_flg;
\r
5901 p += sprintf((char *) p, "\x1BO%c", xkey);
\r
5903 p += sprintf((char *) p, "\x1B[%c", xkey);
\r
5909 void term_key(Terminal *term, Key_Sym keysym, wchar_t *text, size_t tlen,
\r
5910 unsigned int modifiers, unsigned int flags)
\r
5914 int prependesc = FALSE;
\r
5918 fprintf(stderr, "keysym = %d, %d chars:", keysym, tlen);
\r
5919 for (i = 0; i < tlen; i++)
\r
5920 fprintf(stderr, " %04x", (unsigned)text[i]);
\r
5921 fprintf(stderr, "\n");
\r
5924 /* XXX Num Lock */
\r
5925 if ((flags & PKF_REPEAT) && term->repeat_off)
\r
5928 /* Currently, Meta always just prefixes everything with ESC. */
\r
5929 if (modifiers & PKM_META)
\r
5930 prependesc = TRUE;
\r
5931 modifiers &= ~PKM_META;
\r
5934 * Alt is only used for Alt+keypad, which isn't supported yet, so
\r
5937 modifiers &= ~PKM_ALT;
\r
5939 /* Standard local function keys */
\r
5940 switch (modifiers & (PKM_SHIFT | PKM_CONTROL)) {
\r
5942 if (keysym == PK_PAGEUP)
\r
5943 /* scroll up one page */;
\r
5944 if (keysym == PK_PAGEDOWN)
\r
5945 /* scroll down on page */;
\r
5946 if (keysym == PK_INSERT)
\r
5947 term_do_paste(term);
\r
5950 if (keysym == PK_PAGEUP)
\r
5951 /* scroll up one line */;
\r
5952 if (keysym == PK_PAGEDOWN)
\r
5953 /* scroll down one line */;
\r
5954 /* Control-Numlock for app-keypad mode switch */
\r
5955 if (keysym == PK_PF1)
\r
5956 term->app_keypad_keys ^= 1;
\r
5960 if (modifiers & PKM_ALT) {
\r
5961 /* Alt+F4 (close) */
\r
5962 /* Alt+Return (full screen) */
\r
5963 /* Alt+Space (system menu) */
\r
5966 if (keysym == PK_NULL && (modifiers & PKM_CONTROL) && tlen == 1 &&
\r
5967 text[0] >= 0x20 && text[0] <= 0x7e) {
\r
5968 /* ASCII chars + Control */
\r
5969 if ((text[0] >= 0x40 && text[0] <= 0x5f) ||
\r
5970 (text[0] >= 0x61 && text[0] <= 0x7a))
\r
5974 * Control-2 should return ^@ (0x00), Control-6 should return
\r
5975 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
\r
5976 * the DOS keyboard handling did it, and we have nothing better
\r
5977 * to do with the key combo in question, we'll also map
\r
5978 * Control-Backquote to ^\ (0x1C).
\r
5980 switch (text[0]) {
\r
5981 case ' ': text[0] = 0x00; break;
\r
5982 case '-': text[0] = 0x1f; break;
\r
5983 case '/': text[0] = 0x1f; break;
\r
5984 case '2': text[0] = 0x00; break;
\r
5985 case '3': text[0] = 0x1b; break;
\r
5986 case '4': text[0] = 0x1c; break;
\r
5987 case '5': text[0] = 0x1d; break;
\r
5988 case '6': text[0] = 0x1e; break;
\r
5989 case '7': text[0] = 0x1f; break;
\r
5990 case '8': text[0] = 0x7f; break;
\r
5991 case '`': text[0] = 0x1c; break;
\r
5996 /* Nethack keypad */
\r
5997 if (term->cfg.nethack_keypad) {
\r
6000 case PK_KP1: c = 'b'; break;
\r
6001 case PK_KP2: c = 'j'; break;
\r
6002 case PK_KP3: c = 'n'; break;
\r
6003 case PK_KP4: c = 'h'; break;
\r
6004 case PK_KP5: c = '.'; break;
\r
6005 case PK_KP6: c = 'l'; break;
\r
6006 case PK_KP7: c = 'y'; break;
\r
6007 case PK_KP8: c = 'k'; break;
\r
6008 case PK_KP9: c = 'u'; break;
\r
6009 default: break; /* else gcc warns `enum value not used' */
\r
6013 if (modifiers & PKM_CONTROL)
\r
6015 else if (modifiers & PKM_SHIFT)
\r
6016 c = toupper((unsigned char)c);
\r
6023 /* Numeric Keypad */
\r
6024 if (PK_ISKEYPAD(keysym)) {
\r
6028 * In VT400 mode, PFn always emits an escape sequence. In
\r
6029 * Linux and tilde modes, this only happens in app keypad mode.
\r
6031 if (term->cfg.funky_type == FUNKY_VT400 ||
\r
6032 ((term->cfg.funky_type == FUNKY_LINUX ||
\r
6033 term->cfg.funky_type == FUNKY_TILDE) &&
\r
6034 term->app_keypad_keys && !term->cfg.no_applic_k)) {
\r
6036 case PK_PF1: xkey = 'P'; break;
\r
6037 case PK_PF2: xkey = 'Q'; break;
\r
6038 case PK_PF3: xkey = 'R'; break;
\r
6039 case PK_PF4: xkey = 'S'; break;
\r
6040 default: break; /* else gcc warns `enum value not used' */
\r
6043 if (term->app_keypad_keys && !term->cfg.no_applic_k) {
\r
6045 case PK_KP0: xkey = 'p'; break;
\r
6046 case PK_KP1: xkey = 'q'; break;
\r
6047 case PK_KP2: xkey = 'r'; break;
\r
6048 case PK_KP3: xkey = 's'; break;
\r
6049 case PK_KP4: xkey = 't'; break;
\r
6050 case PK_KP5: xkey = 'u'; break;
\r
6051 case PK_KP6: xkey = 'v'; break;
\r
6052 case PK_KP7: xkey = 'w'; break;
\r
6053 case PK_KP8: xkey = 'x'; break;
\r
6054 case PK_KP9: xkey = 'y'; break;
\r
6055 case PK_KPDECIMAL: xkey = 'n'; break;
\r
6056 case PK_KPENTER: xkey = 'M'; break;
\r
6057 default: break; /* else gcc warns `enum value not used' */
\r
6059 if (term->cfg.funky_type == FUNKY_XTERM && tlen > 0) {
\r
6061 * xterm can't see the layout of the keypad, so it has
\r
6062 * to rely on the X keysyms returned by the keys.
\r
6063 * Hence, we look at the strings here, not the PuTTY
\r
6064 * keysyms (which describe the layout).
\r
6066 switch (text[0]) {
\r
6068 if (modifiers & PKM_SHIFT)
\r
6073 case '/': xkey = 'o'; break;
\r
6074 case '*': xkey = 'j'; break;
\r
6075 case '-': xkey = 'm'; break;
\r
6079 * In all other modes, we try to retain the layout of
\r
6080 * the DEC keypad in application mode.
\r
6083 case PK_KPBIGPLUS:
\r
6084 /* This key covers the '-' and ',' keys on a VT220 */
\r
6085 if (modifiers & PKM_SHIFT)
\r
6086 xkey = 'm'; /* VT220 '-' */
\r
6088 xkey = 'l'; /* VT220 ',' */
\r
6090 case PK_KPMINUS: xkey = 'm'; break;
\r
6091 case PK_KPCOMMA: xkey = 'l'; break;
\r
6092 default: break; /* else gcc warns `enum value not used' */
\r
6097 if (term->vt52_mode) {
\r
6098 if (xkey >= 'P' && xkey <= 'S')
\r
6099 p += sprintf((char *) p, "\x1B%c", xkey);
\r
6101 p += sprintf((char *) p, "\x1B?%c", xkey);
\r
6103 p += sprintf((char *) p, "\x1BO%c", xkey);
\r
6106 /* Not in application mode -- treat the number pad as arrow keys? */
\r
6107 if ((flags & PKF_NUMLOCK) == 0) {
\r
6109 case PK_KP0: keysym = PK_INSERT; break;
\r
6110 case PK_KP1: keysym = PK_END; break;
\r
6111 case PK_KP2: keysym = PK_DOWN; break;
\r
6112 case PK_KP3: keysym = PK_PAGEDOWN; break;
\r
6113 case PK_KP4: keysym = PK_LEFT; break;
\r
6114 case PK_KP5: keysym = PK_REST; break;
\r
6115 case PK_KP6: keysym = PK_RIGHT; break;
\r
6116 case PK_KP7: keysym = PK_HOME; break;
\r
6117 case PK_KP8: keysym = PK_UP; break;
\r
6118 case PK_KP9: keysym = PK_PAGEUP; break;
\r
6119 default: break; /* else gcc warns `enum value not used' */
\r
6124 /* Miscellaneous keys */
\r
6129 case PK_BACKSPACE:
\r
6130 if (modifiers == 0)
\r
6131 *p++ = (term->cfg.bksp_is_delete ? 0x7F : 0x08);
\r
6132 else if (modifiers == PKM_SHIFT)
\r
6133 /* We do the opposite of what is configured */
\r
6134 *p++ = (term->cfg.bksp_is_delete ? 0x08 : 0x7F);
\r
6138 if (modifiers == 0)
\r
6140 else if (modifiers == PKM_SHIFT)
\r
6141 *p++ = 0x1B, *p++ = '[', *p++ = 'Z';
\r
6144 /* XXX window.c has ctrl+shift+space sending 0xa0 */
\r
6146 if (modifiers == PKM_CONTROL)
\r
6151 case PK_KPENTER: /* Odd keypad modes handled above */
\r
6152 if (modifiers == 0) {
\r
6154 if (term->cr_lf_return)
\r
6158 default: break; /* else gcc warns `enum value not used' */
\r
6161 /* SCO function keys and editing keys */
\r
6162 if (term->cfg.funky_type == FUNKY_SCO) {
\r
6163 if (PK_ISFKEY(keysym) && keysym <= PK_F12) {
\r
6164 static char const codes[] =
\r
6165 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
\r
6166 int index = keysym - PK_F1;
\r
6168 if (modifiers & PKM_SHIFT) index += 12;
\r
6169 if (modifiers & PKM_CONTROL) index += 24;
\r
6170 p += sprintf((char *) p, "\x1B[%c", codes[index]);
\r
6173 if (PK_ISEDITING(keysym)) {
\r
6177 case PK_DELETE: *p++ = 0x7f; goto done;
\r
6178 case PK_HOME: xkey = 'H'; break;
\r
6179 case PK_INSERT: xkey = 'L'; break;
\r
6180 case PK_END: xkey = 'F'; break;
\r
6181 case PK_PAGEUP: xkey = 'I'; break;
\r
6182 case PK_PAGEDOWN: xkey = 'G'; break;
\r
6183 default: break; /* else gcc warns `enum value not used' */
\r
6185 p += sprintf((char *) p, "\x1B[%c", xkey);
\r
6189 if (PK_ISEDITING(keysym) && (modifiers & PKM_SHIFT) == 0) {
\r
6192 if (term->cfg.funky_type == FUNKY_XTERM) {
\r
6193 /* Xterm shuffles these keys, apparently. */
\r
6195 case PK_HOME: keysym = PK_INSERT; break;
\r
6196 case PK_INSERT: keysym = PK_HOME; break;
\r
6197 case PK_DELETE: keysym = PK_END; break;
\r
6198 case PK_END: keysym = PK_PAGEUP; break;
\r
6199 case PK_PAGEUP: keysym = PK_DELETE; break;
\r
6200 case PK_PAGEDOWN: keysym = PK_PAGEDOWN; break;
\r
6201 default: break; /* else gcc warns `enum value not used' */
\r
6205 /* RXVT Home/End */
\r
6206 if (term->cfg.rxvt_homeend &&
\r
6207 (keysym == PK_HOME || keysym == PK_END)) {
\r
6208 p += sprintf((char *) p, keysym == PK_HOME ? "\x1B[H" : "\x1BOw");
\r
6212 if (term->vt52_mode) {
\r
6216 * A real VT52 doesn't have these, and a VT220 doesn't
\r
6217 * send anything for them in VT52 mode.
\r
6220 case PK_HOME: xkey = 'H'; break;
\r
6221 case PK_INSERT: xkey = 'L'; break;
\r
6222 case PK_DELETE: xkey = 'M'; break;
\r
6223 case PK_END: xkey = 'E'; break;
\r
6224 case PK_PAGEUP: xkey = 'I'; break;
\r
6225 case PK_PAGEDOWN: xkey = 'G'; break;
\r
6226 default: xkey=0; break; /* else gcc warns `enum value not used'*/
\r
6228 p += sprintf((char *) p, "\x1B%c", xkey);
\r
6233 case PK_HOME: code = 1; break;
\r
6234 case PK_INSERT: code = 2; break;
\r
6235 case PK_DELETE: code = 3; break;
\r
6236 case PK_END: code = 4; break;
\r
6237 case PK_PAGEUP: code = 5; break;
\r
6238 case PK_PAGEDOWN: code = 6; break;
\r
6239 default: code = 0; break; /* else gcc warns `enum value not used' */
\r
6241 p += sprintf((char *) p, "\x1B[%d~", code);
\r
6245 if (PK_ISFKEY(keysym)) {
\r
6246 /* Map Shift+F1-F10 to F11-F20 */
\r
6247 if (keysym >= PK_F1 && keysym <= PK_F10 && (modifiers & PKM_SHIFT))
\r
6249 if ((term->vt52_mode || term->cfg.funky_type == FUNKY_VT100P) &&
\r
6250 keysym <= PK_F14) {
\r
6251 /* XXX This overrides the XTERM/VT52 mode below */
\r
6253 if (keysym >= PK_F6) offt++;
\r
6254 if (keysym >= PK_F12) offt++;
\r
6255 p += sprintf((char *) p, term->vt52_mode ? "\x1B%c" : "\x1BO%c",
\r
6256 'P' + keysym - PK_F1 - offt);
\r
6259 if (term->cfg.funky_type == FUNKY_LINUX && keysym <= PK_F5) {
\r
6260 p += sprintf((char *) p, "\x1B[[%c", 'A' + keysym - PK_F1);
\r
6263 if (term->cfg.funky_type == FUNKY_XTERM && keysym <= PK_F4) {
\r
6264 if (term->vt52_mode)
\r
6265 p += sprintf((char *) p, "\x1B%c", 'P' + keysym - PK_F1);
\r
6267 p += sprintf((char *) p, "\x1BO%c", 'P' + keysym - PK_F1);
\r
6270 p += sprintf((char *) p, "\x1B[%d~", 11 + keysym - PK_F1);
\r
6274 if (PK_ISCURSOR(keysym)) {
\r
6278 case PK_UP: xkey = 'A'; break;
\r
6279 case PK_DOWN: xkey = 'B'; break;
\r
6280 case PK_RIGHT: xkey = 'C'; break;
\r
6281 case PK_LEFT: xkey = 'D'; break;
\r
6282 case PK_REST: xkey = 'G'; break; /* centre key on number pad */
\r
6283 default: xkey = 0; break; /* else gcc warns `enum value not used' */
\r
6285 p += format_arrow_key(p, term, xkey, modifiers == PKM_CONTROL);
\r
6290 if (p > output || tlen > 0) {
\r
6292 * Interrupt an ongoing paste. I'm not sure
\r
6293 * this is sensible, but for the moment it's
\r
6294 * preferable to having to faff about buffering
\r
6297 term_nopaste(term);
\r
6300 * We need not bother about stdin backlogs
\r
6301 * here, because in GUI PuTTY we can't do
\r
6302 * anything about it anyway; there's no means
\r
6303 * of asking Windows to hold off on KEYDOWN
\r
6304 * messages. We _have_ to buffer everything
\r
6307 term_seen_key_event(term);
\r
6311 fprintf(stderr, "sending ESC\n");
\r
6313 ldisc_send(term->ldisc, "\x1b", 1, 1);
\r
6318 fprintf(stderr, "sending %d bytes:", p - output);
\r
6319 for (i = 0; i < p - output; i++)
\r
6320 fprintf(stderr, " %02x", output[i]);
\r
6321 fprintf(stderr, "\n");
\r
6323 ldisc_send(term->ldisc, output, p - output, 1);
\r
6324 } else if (tlen > 0) {
\r
6326 fprintf(stderr, "sending %d unichars:", tlen);
\r
6327 for (i = 0; i < tlen; i++)
\r
6328 fprintf(stderr, " %04x", (unsigned) text[i]);
\r
6329 fprintf(stderr, "\n");
\r
6331 luni_send(term->ldisc, text, tlen, 1);
\r
6336 void term_nopaste(Terminal *term)
\r
6338 if (term->paste_len == 0)
\r
6340 sfree(term->paste_buffer);
\r
6341 term->paste_buffer = NULL;
\r
6342 term->paste_len = 0;
\r
6345 int term_paste_pending(Terminal *term)
\r
6347 return term->paste_len != 0;
\r
6350 void term_paste(Terminal *term)
\r
6352 long now, paste_diff;
\r
6354 if (term->paste_len == 0)
\r
6357 /* Don't wait forever to paste */
\r
6358 if (term->paste_hold) {
\r
6359 now = GETTICKCOUNT();
\r
6360 paste_diff = now - term->last_paste;
\r
6361 if (paste_diff >= 0 && paste_diff < 450)
\r
6364 term->paste_hold = 0;
\r
6366 while (term->paste_pos < term->paste_len) {
\r
6368 while (n + term->paste_pos < term->paste_len) {
\r
6369 if (term->paste_buffer[term->paste_pos + n++] == '\015')
\r
6373 luni_send(term->ldisc, term->paste_buffer + term->paste_pos, n, 0);
\r
6374 term->paste_pos += n;
\r
6376 if (term->paste_pos < term->paste_len) {
\r
6377 term->paste_hold = 1;
\r
6381 sfree(term->paste_buffer);
\r
6382 term->paste_buffer = NULL;
\r
6383 term->paste_len = 0;
\r
6386 static void deselect(Terminal *term)
\r
6388 term->selstate = NO_SELECTION;
\r
6389 term->selstart.x = term->selstart.y = term->selend.x = term->selend.y = 0;
\r
6392 void term_deselect(Terminal *term)
\r
6395 term_update(term);
\r
6398 int term_ldisc(Terminal *term, int option)
\r
6400 if (option == LD_ECHO)
\r
6401 return term->term_echoing;
\r
6402 if (option == LD_EDIT)
\r
6403 return term->term_editing;
\r
6407 int term_data(Terminal *term, int is_stderr, const char *data, int len)
\r
6409 bufchain_add(&term->inbuf, data, len);
\r
6411 if (!term->in_term_out) {
\r
6412 term->in_term_out = TRUE;
\r
6413 term_reset_cblink(term);
\r
6415 * During drag-selects, we do not process terminal input,
\r
6416 * because the user will want the screen to hold still to
\r
6419 if (term->selstate != DRAGGING)
\r
6421 term->in_term_out = FALSE;
\r
6425 * term_out() always completely empties inbuf. Therefore,
\r
6426 * there's no reason at all to return anything other than zero
\r
6427 * from this function, because there _can't_ be a question of
\r
6428 * the remote side needing to wait until term_out() has cleared
\r
6431 * This is a slightly suboptimal way to deal with SSH-2 - in
\r
6432 * principle, the window mechanism would allow us to continue
\r
6433 * to accept data on forwarded ports and X connections even
\r
6434 * while the terminal processing was going slowly - but we
\r
6435 * can't do the 100% right thing without moving the terminal
\r
6436 * processing into a separate thread, and that might hurt
\r
6437 * portability. So we manage stdout buffering the old SSH-1 way:
\r
6438 * if the terminal processing goes slowly, the whole SSH
\r
6439 * connection stops accepting data until it's ready.
\r
6441 * In practice, I can't imagine this causing serious trouble.
\r
6447 * Write untrusted data to the terminal.
\r
6448 * The only control character that should be honoured is \n (which
\r
6449 * will behave as a CRLF).
\r
6451 int term_data_untrusted(Terminal *term, const char *data, int len)
\r
6454 /* FIXME: more sophisticated checking? */
\r
6455 for (i = 0; i < len; i++) {
\r
6456 if (data[i] == '\n')
\r
6457 term_data(term, 1, "\r\n", 2);
\r
6458 else if (data[i] & 0x60)
\r
6459 term_data(term, 1, data + i, 1);
\r
6461 return 0; /* assumes that term_data() always returns 0 */
\r
6464 void term_provide_logctx(Terminal *term, void *logctx)
\r
6466 term->logctx = logctx;
\r
6469 void term_set_focus(Terminal *term, int has_focus)
\r
6471 term->has_focus = has_focus;
\r
6472 term_schedule_cblink(term);
\r
6476 * Provide "auto" settings for remote tty modes, suitable for an
\r
6477 * application with a terminal window.
\r
6479 char *term_get_ttymode(Terminal *term, const char *mode)
\r
6482 if (strcmp(mode, "ERASE") == 0) {
\r
6483 val = term->cfg.bksp_is_delete ? "^?" : "^H";
\r
6485 /* FIXME: perhaps we should set ONLCR based on cfg.lfhascr as well? */
\r
6486 /* FIXME: or ECHO and friends based on local echo state? */
\r
6487 return dupstr(val);
\r
6490 struct term_userpass_state {
\r
6491 size_t curr_prompt;
\r
6492 int done_prompt; /* printed out prompt yet? */
\r
6493 size_t pos; /* cursor position */
\r
6497 * Process some terminal data in the course of username/password
\r
6500 int term_get_userpass_input(Terminal *term, prompts_t *p,
\r
6501 unsigned char *in, int inlen)
\r
6503 struct term_userpass_state *s = (struct term_userpass_state *)p->data;
\r
6506 * First call. Set some stuff up.
\r
6508 p->data = s = snew(struct term_userpass_state);
\r
6509 s->curr_prompt = 0;
\r
6510 s->done_prompt = 0;
\r
6511 /* We only print the `name' caption if we have to... */
\r
6512 if (p->name_reqd && p->name) {
\r
6513 size_t l = strlen(p->name);
\r
6514 term_data_untrusted(term, p->name, l);
\r
6515 if (p->name[l-1] != '\n')
\r
6516 term_data_untrusted(term, "\n", 1);
\r
6518 /* ...but we always print any `instruction'. */
\r
6519 if (p->instruction) {
\r
6520 size_t l = strlen(p->instruction);
\r
6521 term_data_untrusted(term, p->instruction, l);
\r
6522 if (p->instruction[l-1] != '\n')
\r
6523 term_data_untrusted(term, "\n", 1);
\r
6526 * Zero all the results, in case we abort half-way through.
\r
6530 for (i = 0; i < (int)p->n_prompts; i++)
\r
6531 memset(p->prompts[i]->result, 0, p->prompts[i]->result_len);
\r
6535 while (s->curr_prompt < p->n_prompts) {
\r
6537 prompt_t *pr = p->prompts[s->curr_prompt];
\r
6538 int finished_prompt = 0;
\r
6540 if (!s->done_prompt) {
\r
6541 term_data_untrusted(term, pr->prompt, strlen(pr->prompt));
\r
6542 s->done_prompt = 1;
\r
6546 /* Breaking out here ensures that the prompt is printed even
\r
6547 * if we're now waiting for user data. */
\r
6548 if (!in || !inlen) break;
\r
6550 /* FIXME: should we be using local-line-editing code instead? */
\r
6551 while (!finished_prompt && inlen) {
\r
6557 term_data(term, 0, "\r\n", 2);
\r
6558 pr->result[s->pos] = '\0';
\r
6559 pr->result[pr->result_len - 1] = '\0';
\r
6560 /* go to next prompt, if any */
\r
6562 s->done_prompt = 0;
\r
6563 finished_prompt = 1; /* break out */
\r
6569 term_data(term, 0, "\b \b", 3);
\r
6575 while (s->pos > 0) {
\r
6577 term_data(term, 0, "\b \b", 3);
\r
6583 /* Immediate abort. */
\r
6584 term_data(term, 0, "\r\n", 2);
\r
6587 return 0; /* user abort */
\r
6590 * This simplistic check for printability is disabled
\r
6591 * when we're doing password input, because some people
\r
6592 * have control characters in their passwords.
\r
6595 (c >= ' ' && c <= '~') ||
\r
6596 ((unsigned char) c >= 160))
\r
6597 && s->pos < pr->result_len - 1) {
\r
6598 pr->result[s->pos++] = c;
\r
6600 term_data(term, 0, &c, 1);
\r
6608 if (s->curr_prompt < p->n_prompts) {
\r
6609 return -1; /* more data required */
\r
6613 return +1; /* all done */
\r
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