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As usual, gcc is better at warnings than MSVC, so here are some
[u/mdw/putty] / terminal.c
CommitLineData
374330e2 1#include <stdio.h>
2#include <stdlib.h>
49bad831 3#include <ctype.h>
374330e2 4
e1c8e0ed 5#include <time.h>
c83de303 6#include <assert.h>
374330e2 7#include "putty.h"
887035a5 8#include "terminal.h"
9
10#define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
11#define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
12#define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
13#define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
14
15/* Product-order comparisons for rectangular block selection. */
16#define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
17#define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
18
19#define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
20#define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
374330e2 21
4eeb7d09 22#define VT52_PLUS
23
32874aea 24#define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
25#define CL_VT100 0x0002 /* VT100 */
26#define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
27#define CL_VT102 0x0008 /* VT102 */
28#define CL_VT220 0x0010 /* VT220 */
29#define CL_VT320 0x0020 /* VT320 */
30#define CL_VT420 0x0040 /* VT420 */
31#define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
32#define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
33#define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
34#define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
35#define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
e14a5a13 36
c9def1b8 37#define TM_VT100 (CL_ANSIMIN|CL_VT100)
38#define TM_VT100AVO (TM_VT100|CL_VT100AVO)
39#define TM_VT102 (TM_VT100AVO|CL_VT102)
40#define TM_VT220 (TM_VT102|CL_VT220)
41#define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
42#define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
43
44#define TM_PUTTY (0xFFFF)
e14a5a13 45
46#define compatibility(x) \
887035a5 47 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
48 term->termstate=TOPLEVEL; \
e14a5a13 49 break; \
50 }
c9def1b8 51#define compatibility2(x,y) \
887035a5 52 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
53 term->termstate=TOPLEVEL; \
c9def1b8 54 break; \
55 }
e14a5a13 56
887035a5 57#define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
374330e2 58
4eeb7d09 59#define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
887035a5 60const wchar_t sel_nl[] = SEL_NL;
374330e2 61
62/*
3c7366f8 63 * Fetch the character at a particular position in a line array,
64 * for purposes of `wordtype'. The reason this isn't just a simple
65 * array reference is that if the character we find is UCSWIDE,
66 * then we must look one space further to the left.
67 */
68#define UCSGET(a, x) \
69 ( (x)>0 && ((a)[(x)] & (CHAR_MASK | CSET_MASK)) == UCSWIDE ? \
70 (a)[(x)-1] : (a)[(x)] )
71
72/*
374330e2 73 * Internal prototypes.
74 */
9547a2ac 75static unsigned long *resizeline(unsigned long *, int);
76static unsigned long *lineptr(Terminal *, int, int);
887035a5 77static void do_paint(Terminal *, Context, int);
78static void erase_lots(Terminal *, int, int, int);
79static void swap_screen(Terminal *, int, int, int);
80static void update_sbar(Terminal *);
81static void deselect(Terminal *);
82static void term_print_finish(Terminal *);
37d2a505 83#ifdef OPTIMISE_SCROLL
84static void scroll_display(Terminal *, int, int, int);
85#endif /* OPTIMISE_SCROLL */
374330e2 86
87/*
2371caac 88 * Resize a line to make it `cols' columns wide.
89 */
9547a2ac 90static unsigned long *resizeline(unsigned long *line, int cols)
2371caac 91{
92 int i, oldlen;
93 unsigned long lineattrs;
94
95 if (line[0] != (unsigned long)cols) {
96 /*
97 * This line is the wrong length, which probably means it
98 * hasn't been accessed since a resize. Resize it now.
99 */
100 oldlen = line[0];
101 lineattrs = line[oldlen + 1];
102 line = srealloc(line, TSIZE * (2 + cols));
103 line[0] = cols;
104 for (i = oldlen; i < cols; i++)
105 line[i + 1] = ERASE_CHAR;
106 line[cols + 1] = lineattrs & LATTR_MODE;
107 }
108
109 return line;
110}
111
112/*
c83de303 113 * Retrieve a line of the screen or of the scrollback, according to
114 * whether the y coordinate is non-negative or negative
115 * (respectively).
116 */
9547a2ac 117static unsigned long *lineptr(Terminal *term, int y, int lineno)
32874aea 118{
2371caac 119 unsigned long *line, *newline;
c83de303 120 tree234 *whichtree;
2371caac 121 int treeindex;
c83de303 122
123 if (y >= 0) {
887035a5 124 whichtree = term->screen;
c83de303 125 treeindex = y;
126 } else {
887035a5 127 whichtree = term->scrollback;
128 treeindex = y + count234(term->scrollback);
c83de303 129 }
130 line = index234(whichtree, treeindex);
131
132 /* We assume that we don't screw up and retrieve something out of range. */
c83de303 133 assert(line != NULL);
c83de303 134
887035a5 135 newline = resizeline(line, term->cols);
2371caac 136 if (newline != line) {
c83de303 137 delpos234(whichtree, treeindex);
2371caac 138 addpos234(whichtree, newline, treeindex);
04dcfaa2 139 line = newline;
c83de303 140 }
141
32874aea 142 return line + 1;
c83de303 143}
32874aea 144
887035a5 145#define lineptr(x) lineptr(term,x,__LINE__)
146
c83de303 147/*
374330e2 148 * Set up power-on settings for the terminal.
149 */
887035a5 150static void power_on(Terminal *term)
32874aea 151{
887035a5 152 term->curs.x = term->curs.y = 0;
153 term->alt_x = term->alt_y = 0;
154 term->savecurs.x = term->savecurs.y = 0;
155 term->alt_t = term->marg_t = 0;
156 if (term->rows != -1)
157 term->alt_b = term->marg_b = term->rows - 1;
374330e2 158 else
887035a5 159 term->alt_b = term->marg_b = 0;
160 if (term->cols != -1) {
374330e2 161 int i;
887035a5 162 for (i = 0; i < term->cols; i++)
163 term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
374330e2 164 }
64734920 165 term->alt_om = term->dec_om = term->cfg.dec_om;
f278d6f8 166 term->alt_ins = term->insert = FALSE;
167 term->alt_wnext = term->wrapnext = term->save_wnext = FALSE;
64734920 168 term->alt_wrap = term->wrap = term->cfg.wrap_mode;
f278d6f8 169 term->alt_cset = term->cset = term->save_cset = 0;
170 term->alt_utf = term->utf = term->save_utf = 0;
171 term->utf_state = 0;
172 term->alt_sco_acs = term->sco_acs = term->save_sco_acs = 0;
173 term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = ATTR_ASCII;
887035a5 174 term->rvideo = 0;
175 term->in_vbell = FALSE;
176 term->cursor_on = 1;
177 term->big_cursor = 0;
178 term->save_attr = term->curr_attr = ATTR_DEFAULT;
179 term->term_editing = term->term_echoing = FALSE;
64734920 180 term->app_cursor_keys = term->cfg.app_cursor;
181 term->app_keypad_keys = term->cfg.app_keypad;
182 term->use_bce = term->cfg.bce;
183 term->blink_is_real = term->cfg.blinktext;
887035a5 184 term->erase_char = ERASE_CHAR;
185 term->alt_which = 0;
186 term_print_finish(term);
374330e2 187 {
188 int i;
189 for (i = 0; i < 256; i++)
64734920 190 term->wordness[i] = term->cfg.wordness[i];
374330e2 191 }
887035a5 192 if (term->screen) {
193 swap_screen(term, 1, FALSE, FALSE);
194 erase_lots(term, FALSE, TRUE, TRUE);
195 swap_screen(term, 0, FALSE, FALSE);
196 erase_lots(term, FALSE, TRUE, TRUE);
374330e2 197 }
198}
199
200/*
201 * Force a screen update.
202 */
887035a5 203void term_update(Terminal *term)
32874aea 204{
374330e2 205 Context ctx;
a8327734 206 ctx = get_ctx(term->frontend);
374330e2 207 if (ctx) {
887035a5 208 int need_sbar_update = term->seen_disp_event;
64734920 209 if (term->seen_disp_event && term->cfg.scroll_on_disp) {
887035a5 210 term->disptop = 0; /* return to main screen */
211 term->seen_disp_event = 0;
4f892125 212 need_sbar_update = TRUE;
cabfd08c 213 }
4f892125 214 if (need_sbar_update)
887035a5 215 update_sbar(term);
216 do_paint(term, ctx, TRUE);
a8327734 217 sys_cursor(term->frontend, term->curs.x, term->curs.y - term->disptop);
32874aea 218 free_ctx(ctx);
374330e2 219 }
220}
221
222/*
2cb50250 223 * Called from front end when a keypress occurs, to trigger
224 * anything magical that needs to happen in that situation.
225 */
887035a5 226void term_seen_key_event(Terminal *term)
2cb50250 227{
228 /*
229 * On any keypress, clear the bell overload mechanism
230 * completely, on the grounds that large numbers of
231 * beeps coming from deliberate key action are likely
232 * to be intended (e.g. beeps from filename completion
233 * blocking repeatedly).
234 */
887035a5 235 term->beep_overloaded = FALSE;
236 while (term->beephead) {
237 struct beeptime *tmp = term->beephead;
238 term->beephead = tmp->next;
2cb50250 239 sfree(tmp);
240 }
887035a5 241 term->beeptail = NULL;
242 term->nbeeps = 0;
2cb50250 243
244 /*
245 * Reset the scrollback on keypress, if we're doing that.
246 */
64734920 247 if (term->cfg.scroll_on_key) {
887035a5 248 term->disptop = 0; /* return to main screen */
249 term->seen_disp_event = 1;
2cb50250 250 }
251}
252
253/*
374330e2 254 * Same as power_on(), but an external function.
255 */
887035a5 256void term_pwron(Terminal *term)
32874aea 257{
887035a5 258 power_on(term);
b9d7bcad 259 if (term->ldisc) /* cause ldisc to notice changes */
260 ldisc_send(term->ldisc, NULL, 0, 0);
374330e2 261 fix_cpos;
887035a5 262 term->disptop = 0;
263 deselect(term);
264 term_update(term);
374330e2 265}
266
267/*
0d2086c5 268 * When the user reconfigures us, we need to check the forbidden-
b44b307a 269 * alternate-screen config option, disable raw mouse mode if the
270 * user has disabled mouse reporting, and abandon a print job if
271 * the user has disabled printing.
0d2086c5 272 */
64734920 273void term_reconfig(Terminal *term, Config *cfg)
0d2086c5 274{
64734920 275 /*
276 * Before adopting the new config, check all those terminal
277 * settings which control power-on defaults; and if they've
278 * changed, we will modify the current state as well as the
279 * default one. The full list is: Auto wrap mode, DEC Origin
280 * Mode, BCE, blinking text, character classes.
281 */
282 int reset_wrap, reset_decom, reset_bce, reset_blink, reset_charclass;
283 int i;
284
285 reset_wrap = (term->cfg.wrap_mode != cfg->wrap_mode);
286 reset_decom = (term->cfg.dec_om != cfg->dec_om);
287 reset_bce = (term->cfg.bce != cfg->bce);
288 reset_blink = (term->cfg.blinktext != cfg->blinktext);
289 reset_charclass = 0;
290 for (i = 0; i < lenof(term->cfg.wordness); i++)
291 if (term->cfg.wordness[i] != cfg->wordness[i])
292 reset_charclass = 1;
293
294 term->cfg = *cfg; /* STRUCTURE COPY */
295
296 if (reset_wrap)
297 term->alt_wrap = term->wrap = term->cfg.wrap_mode;
298 if (reset_decom)
299 term->alt_om = term->dec_om = term->cfg.dec_om;
300 if (reset_bce)
301 term->use_bce = term->cfg.bce;
302 if (reset_blink)
303 term->blink_is_real = term->cfg.blinktext;
304 if (reset_charclass)
305 for (i = 0; i < 256; i++)
306 term->wordness[i] = term->cfg.wordness[i];
307
308 if (term->cfg.no_alt_screen)
887035a5 309 swap_screen(term, 0, FALSE, FALSE);
64734920 310 if (term->cfg.no_mouse_rep) {
887035a5 311 term->xterm_mouse = 0;
a8327734 312 set_raw_mouse_mode(term->frontend, 0);
c0d36a72 313 }
64734920 314 if (term->cfg.no_remote_charset) {
887035a5 315 term->cset_attr[0] = term->cset_attr[1] = ATTR_ASCII;
316 term->sco_acs = term->alt_sco_acs = 0;
317 term->utf = 0;
0d2086c5 318 }
64734920 319 if (!*term->cfg.printer) {
887035a5 320 term_print_finish(term);
b44b307a 321 }
0d2086c5 322}
323
324/*
374330e2 325 * Clear the scrollback.
326 */
887035a5 327void term_clrsb(Terminal *term)
32874aea 328{
4facdf84 329 unsigned long *line;
887035a5 330 term->disptop = 0;
331 while ((line = delpos234(term->scrollback, 0)) != NULL) {
4facdf84 332 sfree(line);
333 }
887035a5 334 update_sbar(term);
374330e2 335}
336
337/*
338 * Initialise the terminal.
339 */
21d2b241 340Terminal *term_init(Config *mycfg, struct unicode_data *ucsdata,
341 void *frontend)
32874aea 342{
887035a5 343 Terminal *term;
344
345 /*
346 * Allocate a new Terminal structure and initialise the fields
347 * that need it.
348 */
349 term = smalloc(sizeof(Terminal));
a8327734 350 term->frontend = frontend;
21d2b241 351 term->ucsdata = ucsdata;
64734920 352 term->cfg = *mycfg; /* STRUCTURE COPY */
a8327734 353 term->logctx = NULL;
887035a5 354 term->compatibility_level = TM_PUTTY;
355 strcpy(term->id_string, "\033[?6c");
356 term->last_blink = term->last_tblink = 0;
357 term->paste_buffer = NULL;
c80a3e8c 358 term->paste_len = 0;
887035a5 359 term->last_paste = 0;
360 bufchain_init(&term->inbuf);
361 bufchain_init(&term->printer_buf);
f278d6f8 362 term->printing = term->only_printing = FALSE;
363 term->print_job = NULL;
364 term->vt52_mode = FALSE;
365 term->cr_lf_return = FALSE;
366 term->seen_disp_event = FALSE;
b9d7bcad 367 term->xterm_mouse = term->mouse_is_down = FALSE;
f278d6f8 368 term->reset_132 = FALSE;
369 term->blinker = term->tblinker = 0;
370 term->has_focus = 1;
371 term->repeat_off = FALSE;
372 term->termstate = TOPLEVEL;
373 term->selstate = NO_SELECTION;
093a75b8 374 term->curstype = 0;
887035a5 375
376 term->screen = term->alt_screen = term->scrollback = NULL;
377 term->disptop = 0;
378 term->disptext = term->dispcurs = NULL;
379 term->tabs = NULL;
380 deselect(term);
381 term->rows = term->cols = -1;
382 power_on(term);
383 term->beephead = term->beeptail = NULL;
341eb978 384#ifdef OPTIMISE_SCROLL
385 term->scrollhead = term->scrolltail = NULL;
386#endif /* OPTIMISE_SCROLL */
887035a5 387 term->nbeeps = 0;
388 term->lastbeep = FALSE;
389 term->beep_overloaded = FALSE;
2647b103 390 term->attr_mask = 0xffffffff;
51470298 391 term->resize_fn = NULL;
392 term->resize_ctx = NULL;
887035a5 393
394 return term;
374330e2 395}
396
fabd1805 397void term_free(Terminal *term)
398{
399 unsigned long *line;
400 struct beeptime *beep;
401
402 while ((line = delpos234(term->scrollback, 0)) != NULL)
403 sfree(line);
404 freetree234(term->scrollback);
405 while ((line = delpos234(term->screen, 0)) != NULL)
406 sfree(line);
407 freetree234(term->screen);
408 while ((line = delpos234(term->alt_screen, 0)) != NULL)
409 sfree(line);
410 freetree234(term->alt_screen);
411 sfree(term->disptext);
412 while (term->beephead) {
413 beep = term->beephead;
414 term->beephead = beep->next;
415 sfree(beep);
416 }
417 bufchain_clear(&term->inbuf);
418 if(term->print_job)
419 printer_finish_job(term->print_job);
420 bufchain_clear(&term->printer_buf);
421 sfree(term->paste_buffer);
422 sfree(term);
423}
424
374330e2 425/*
426 * Set up the terminal for a given size.
427 */
887035a5 428void term_size(Terminal *term, int newrows, int newcols, int newsavelines)
32874aea 429{
2d466ffd 430 tree234 *newalt;
431 unsigned long *newdisp, *line;
432 int i, j;
c83de303 433 int sblen;
887035a5 434 int save_alt_which = term->alt_which;
d6832394 435
887035a5 436 if (newrows == term->rows && newcols == term->cols &&
437 newsavelines == term->savelines)
374330e2 438 return; /* nothing to do */
439
887035a5 440 deselect(term);
441 swap_screen(term, 0, FALSE, FALSE);
d6832394 442
887035a5 443 term->alt_t = term->marg_t = 0;
444 term->alt_b = term->marg_b = newrows - 1;
374330e2 445
887035a5 446 if (term->rows == -1) {
447 term->scrollback = newtree234(NULL);
448 term->screen = newtree234(NULL);
449 term->rows = 0;
c83de303 450 }
451
452 /*
453 * Resize the screen and scrollback. We only need to shift
454 * lines around within our data structures, because lineptr()
455 * will take care of resizing each individual line if
456 * necessary. So:
457 *
458 * - If the new screen and the old screen differ in length, we
459 * must shunt some lines in from the scrollback or out to
460 * the scrollback.
461 *
462 * - If doing that fails to provide us with enough material to
463 * fill the new screen (i.e. the number of rows needed in
464 * the new screen exceeds the total number in the previous
465 * screen+scrollback), we must invent some blank lines to
466 * cover the gap.
467 *
468 * - Then, if the new scrollback length is less than the
469 * amount of scrollback we actually have, we must throw some
470 * away.
471 */
887035a5 472 sblen = count234(term->scrollback);
cdd6c586 473 /* Do this loop to expand the screen if newrows > rows */
887035a5 474 for (i = term->rows; i < newrows; i++) {
32874aea 475 if (sblen > 0) {
887035a5 476 line = delpos234(term->scrollback, --sblen);
32874aea 477 } else {
478 line = smalloc(TSIZE * (newcols + 2));
479 line[0] = newcols;
37ca32ed 480 for (j = 0; j < newcols; j++)
32874aea 481 line[j + 1] = ERASE_CHAR;
8ceabe90 482 line[newcols + 1] = LATTR_NORM;
32874aea 483 }
887035a5 484 addpos234(term->screen, line, 0);
cdd6c586 485 }
486 /* Do this loop to shrink the screen if newrows < rows */
887035a5 487 for (i = newrows; i < term->rows; i++) {
488 line = delpos234(term->screen, 0);
489 addpos234(term->scrollback, line, sblen++);
c83de303 490 }
887035a5 491 assert(count234(term->screen) == newrows);
c83de303 492 while (sblen > newsavelines) {
887035a5 493 line = delpos234(term->scrollback, 0);
c83de303 494 sfree(line);
495 sblen--;
c9def1b8 496 }
887035a5 497 assert(count234(term->scrollback) <= newsavelines);
498 term->disptop = 0;
374330e2 499
32874aea 500 newdisp = smalloc(newrows * (newcols + 1) * TSIZE);
501 for (i = 0; i < newrows * (newcols + 1); i++)
374330e2 502 newdisp[i] = ATTR_INVALID;
887035a5 503 sfree(term->disptext);
504 term->disptext = newdisp;
505 term->dispcurs = NULL;
374330e2 506
4facdf84 507 newalt = newtree234(NULL);
32874aea 508 for (i = 0; i < newrows; i++) {
509 line = smalloc(TSIZE * (newcols + 2));
c83de303 510 line[0] = newcols;
37ca32ed 511 for (j = 0; j < newcols; j++)
887035a5 512 line[j + 1] = term->erase_char;
37ca32ed 513 line[newcols + 1] = LATTR_NORM;
4facdf84 514 addpos234(newalt, line, i);
515 }
887035a5 516 if (term->alt_screen) {
517 while (NULL != (line = delpos234(term->alt_screen, 0)))
4facdf84 518 sfree(line);
887035a5 519 freetree234(term->alt_screen);
4facdf84 520 }
887035a5 521 term->alt_screen = newalt;
374330e2 522
887035a5 523 term->tabs = srealloc(term->tabs, newcols * sizeof(*term->tabs));
374330e2 524 {
525 int i;
887035a5 526 for (i = (term->cols > 0 ? term->cols : 0); i < newcols; i++)
527 term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
374330e2 528 }
529
887035a5 530 if (term->rows > 0)
531 term->curs.y += newrows - term->rows;
532 if (term->curs.y < 0)
533 term->curs.y = 0;
534 if (term->curs.y >= newrows)
535 term->curs.y = newrows - 1;
536 if (term->curs.x >= newcols)
537 term->curs.x = newcols - 1;
538 term->alt_x = term->alt_y = 0;
539 term->wrapnext = term->alt_wnext = FALSE;
540
541 term->rows = newrows;
542 term->cols = newcols;
543 term->savelines = newsavelines;
374330e2 544 fix_cpos;
545
887035a5 546 swap_screen(term, save_alt_which, FALSE, FALSE);
d6832394 547
887035a5 548 update_sbar(term);
549 term_update(term);
51470298 550 if (term->resize_fn)
551 term->resize_fn(term->resize_ctx, term->cols, term->rows);
552}
553
554/*
555 * Hand a function and context pointer to the terminal which it can
556 * use to notify a back end of resizes.
557 */
558void term_provide_resize_fn(Terminal *term,
559 void (*resize_fn)(void *, int, int),
560 void *resize_ctx)
561{
562 term->resize_fn = resize_fn;
563 term->resize_ctx = resize_ctx;
564 if (term->cols > 0 && term->rows > 0)
565 resize_fn(resize_ctx, term->cols, term->rows);
374330e2 566}
567
568/*
8f9b6a1a 569 * Swap screens. If `reset' is TRUE and we have been asked to
570 * switch to the alternate screen, we must bring most of its
571 * configuration from the main screen and erase the contents of the
572 * alternate screen completely. (This is even true if we're already
573 * on it! Blame xterm.)
374330e2 574 */
887035a5 575static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos)
32874aea 576{
374330e2 577 int t;
4facdf84 578 tree234 *ttr;
374330e2 579
8f9b6a1a 580 if (!which)
581 reset = FALSE; /* do no weird resetting if which==0 */
582
887035a5 583 if (which != term->alt_which) {
584 term->alt_which = which;
8f9b6a1a 585
887035a5 586 ttr = term->alt_screen;
587 term->alt_screen = term->screen;
588 term->screen = ttr;
589 t = term->curs.x;
8f9b6a1a 590 if (!reset && !keep_cur_pos)
887035a5 591 term->curs.x = term->alt_x;
592 term->alt_x = t;
593 t = term->curs.y;
8f9b6a1a 594 if (!reset && !keep_cur_pos)
887035a5 595 term->curs.y = term->alt_y;
596 term->alt_y = t;
597 t = term->marg_t;
598 if (!reset) term->marg_t = term->alt_t;
599 term->alt_t = t;
600 t = term->marg_b;
601 if (!reset) term->marg_b = term->alt_b;
602 term->alt_b = t;
603 t = term->dec_om;
604 if (!reset) term->dec_om = term->alt_om;
605 term->alt_om = t;
606 t = term->wrap;
607 if (!reset) term->wrap = term->alt_wrap;
608 term->alt_wrap = t;
609 t = term->wrapnext;
610 if (!reset) term->wrapnext = term->alt_wnext;
611 term->alt_wnext = t;
612 t = term->insert;
613 if (!reset) term->insert = term->alt_ins;
614 term->alt_ins = t;
615 t = term->cset;
616 if (!reset) term->cset = term->alt_cset;
617 term->alt_cset = t;
618 t = term->utf;
619 if (!reset) term->utf = term->alt_utf;
620 term->alt_utf = t;
621 t = term->sco_acs;
622 if (!reset) term->sco_acs = term->alt_sco_acs;
623 term->alt_sco_acs = t;
8f9b6a1a 624 }
374330e2 625
887035a5 626 if (reset && term->screen) {
8f9b6a1a 627 /*
628 * Yes, this _is_ supposed to honour background-colour-erase.
629 */
887035a5 630 erase_lots(term, FALSE, TRUE, TRUE);
8f9b6a1a 631 }
632
633 /*
634 * This might not be possible if we're called during
635 * initialisation.
636 */
887035a5 637 if (term->screen)
8f9b6a1a 638 fix_cpos;
374330e2 639}
640
641/*
374330e2 642 * Update the scroll bar.
643 */
887035a5 644static void update_sbar(Terminal *term)
32874aea 645{
260f3dec 646 int nscroll;
374330e2 647
887035a5 648 nscroll = count234(term->scrollback);
4facdf84 649
a8327734 650 set_sbar(term->frontend, nscroll + term->rows,
651 nscroll + term->disptop, term->rows);
374330e2 652}
653
654/*
655 * Check whether the region bounded by the two pointers intersects
656 * the scroll region, and de-select the on-screen selection if so.
657 */
887035a5 658static void check_selection(Terminal *term, pos from, pos to)
32874aea 659{
887035a5 660 if (poslt(from, term->selend) && poslt(term->selstart, to))
661 deselect(term);
374330e2 662}
663
664/*
665 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
666 * for backward.) `sb' is TRUE if the scrolling is permitted to
667 * affect the scrollback buffer.
a4450583 668 *
669 * NB this function invalidates all pointers into lines of the
670 * screen data structures. In particular, you MUST call fix_cpos
671 * after calling scroll() and before doing anything else that
672 * uses the cpos shortcut pointer.
374330e2 673 */
887035a5 674static void scroll(Terminal *term, int topline, int botline, int lines, int sb)
32874aea 675{
4facdf84 676 unsigned long *line, *line2;
7c66d7d9 677 int i, seltop, olddisptop, shift;
c9def1b8 678
887035a5 679 if (topline != 0 || term->alt_which != 0)
4facdf84 680 sb = FALSE;
681
7c66d7d9 682 olddisptop = term->disptop;
683 shift = lines;
4facdf84 684 if (lines < 0) {
685 while (lines < 0) {
887035a5 686 line = delpos234(term->screen, botline);
687 line = resizeline(line, term->cols);
688 for (i = 0; i < term->cols; i++)
689 line[i + 1] = term->erase_char;
690 line[term->cols + 1] = 0;
691 addpos234(term->screen, line, topline);
692
693 if (term->selstart.y >= topline && term->selstart.y <= botline) {
694 term->selstart.y++;
695 if (term->selstart.y > botline) {
696 term->selstart.y = botline;
697 term->selstart.x = 0;
c9def1b8 698 }
c9def1b8 699 }
887035a5 700 if (term->selend.y >= topline && term->selend.y <= botline) {
701 term->selend.y++;
702 if (term->selend.y > botline) {
703 term->selend.y = botline;
704 term->selend.x = 0;
c9def1b8 705 }
c9def1b8 706 }
c9def1b8 707
4facdf84 708 lines++;
c9def1b8 709 }
374330e2 710 } else {
4facdf84 711 while (lines > 0) {
887035a5 712 line = delpos234(term->screen, topline);
713 if (sb && term->savelines > 0) {
714 int sblen = count234(term->scrollback);
4facdf84 715 /*
716 * We must add this line to the scrollback. We'll
717 * remove a line from the top of the scrollback to
718 * replace it, or allocate a new one if the
719 * scrollback isn't full.
720 */
887035a5 721 if (sblen == term->savelines) {
722 sblen--, line2 = delpos234(term->scrollback, 0);
c83de303 723 } else {
887035a5 724 line2 = smalloc(TSIZE * (term->cols + 2));
725 line2[0] = term->cols;
c83de303 726 }
887035a5 727 addpos234(term->scrollback, line, sblen);
4facdf84 728 line = line2;
a792432e 729
730 /*
731 * If the user is currently looking at part of the
732 * scrollback, and they haven't enabled any options
733 * that are going to reset the scrollback as a
734 * result of this movement, then the chances are
735 * they'd like to keep looking at the same line. So
736 * we move their viewpoint at the same rate as the
737 * scroll, at least until their viewpoint hits the
738 * top end of the scrollback buffer, at which point
739 * we don't have the choice any more.
740 *
741 * Thanks to Jan Holmen Holsten for the idea and
742 * initial implementation.
743 */
887035a5 744 if (term->disptop > -term->savelines && term->disptop < 0)
745 term->disptop--;
4facdf84 746 }
887035a5 747 line = resizeline(line, term->cols);
748 for (i = 0; i < term->cols; i++)
749 line[i + 1] = term->erase_char;
37ca32ed 750 line[term->cols + 1] = LATTR_NORM;
887035a5 751 addpos234(term->screen, line, botline);
4facdf84 752
a792432e 753 /*
754 * If the selection endpoints move into the scrollback,
755 * we keep them moving until they hit the top. However,
756 * of course, if the line _hasn't_ moved into the
757 * scrollback then we don't do this, and cut them off
758 * at the top of the scroll region.
d48db8b4 759 *
760 * This applies to selstart and selend (for an existing
761 * selection), and also selanchor (for one being
762 * selected as we speak).
a792432e 763 */
887035a5 764 seltop = sb ? -term->savelines : topline;
765
766 if (term->selstart.y >= seltop &&
767 term->selstart.y <= botline) {
768 term->selstart.y--;
769 if (term->selstart.y < seltop) {
770 term->selstart.y = seltop;
771 term->selstart.x = 0;
4facdf84 772 }
773 }
887035a5 774 if (term->selend.y >= seltop && term->selend.y <= botline) {
775 term->selend.y--;
776 if (term->selend.y < seltop) {
777 term->selend.y = seltop;
778 term->selend.x = 0;
4facdf84 779 }
780 }
887035a5 781 if (term->selanchor.y >= seltop && term->selanchor.y <= botline) {
782 term->selanchor.y--;
783 if (term->selanchor.y < seltop) {
784 term->selanchor.y = seltop;
785 term->selanchor.x = 0;
d48db8b4 786 }
787 }
4facdf84 788
789 lines--;
c9def1b8 790 }
374330e2 791 }
7c66d7d9 792#ifdef OPTIMISE_SCROLL
793 shift += term->disptop - olddisptop;
794 if (shift < term->rows && shift > -term->rows && shift != 0)
795 scroll_display(term, topline, botline, shift);
796#endif /* OPTIMISE_SCROLL */
374330e2 797}
798
37d2a505 799#ifdef OPTIMISE_SCROLL
800/*
341eb978 801 * Add a scroll of a region on the screen into the pending scroll list.
802 * `lines' is +ve for scrolling forward, -ve for backward.
803 *
804 * If the scroll is on the same area as the last scroll in the list,
805 * merge them.
806 */
03f60a62 807static void save_scroll(Terminal *term, int topline, int botline, int lines)
341eb978 808{
809 struct scrollregion *newscroll;
810 if (term->scrolltail &&
811 term->scrolltail->topline == topline &&
812 term->scrolltail->botline == botline) {
813 term->scrolltail->lines += lines;
814 } else {
815 newscroll = smalloc(sizeof(struct scrollregion));
816 newscroll->topline = topline;
817 newscroll->botline = botline;
818 newscroll->lines = lines;
819 newscroll->next = NULL;
820
821 if (!term->scrollhead)
822 term->scrollhead = newscroll;
823 else
824 term->scrolltail->next = newscroll;
825 term->scrolltail = newscroll;
826 }
827}
828
829/*
37d2a505 830 * Scroll the physical display, and our conception of it in disptext.
831 */
832static void scroll_display(Terminal *term, int topline, int botline, int lines)
833{
834 unsigned long *start, *end;
835 int distance, size, i;
836
837 start = term->disptext + topline * (term->cols + 1);
838 end = term->disptext + (botline + 1) * (term->cols + 1);
839 distance = (lines > 0 ? lines : -lines) * (term->cols + 1);
840 size = end - start - distance;
841 if (lines > 0) {
842 memmove(start, start + distance, size * TSIZE);
7c66d7d9 843 if (term->dispcurs >= start + distance &&
844 term->dispcurs <= start + distance + size)
845 term->dispcurs -= distance;
37d2a505 846 for (i = 0; i < distance; i++)
847 (start + size)[i] |= ATTR_INVALID;
848 } else {
849 memmove(start + distance, start, size * TSIZE);
7c66d7d9 850 if (term->dispcurs >= start && term->dispcurs <= start + size)
851 term->dispcurs += distance;
37d2a505 852 for (i = 0; i < distance; i++)
853 start[i] |= ATTR_INVALID;
854 }
341eb978 855 save_scroll(term, topline, botline, lines);
37d2a505 856}
857#endif /* OPTIMISE_SCROLL */
858
374330e2 859/*
860 * Move the cursor to a given position, clipping at boundaries. We
861 * may or may not want to clip at the scroll margin: marg_clip is 0
862 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
863 * even _being_ outside the margins.
864 */
887035a5 865static void move(Terminal *term, int x, int y, int marg_clip)
32874aea 866{
374330e2 867 if (x < 0)
868 x = 0;
887035a5 869 if (x >= term->cols)
870 x = term->cols - 1;
374330e2 871 if (marg_clip) {
887035a5 872 if ((term->curs.y >= term->marg_t || marg_clip == 2) &&
873 y < term->marg_t)
874 y = term->marg_t;
875 if ((term->curs.y <= term->marg_b || marg_clip == 2) &&
876 y > term->marg_b)
877 y = term->marg_b;
374330e2 878 }
879 if (y < 0)
880 y = 0;
887035a5 881 if (y >= term->rows)
882 y = term->rows - 1;
883 term->curs.x = x;
884 term->curs.y = y;
374330e2 885 fix_cpos;
887035a5 886 term->wrapnext = FALSE;
374330e2 887}
888
889/*
890 * Save or restore the cursor and SGR mode.
891 */
887035a5 892static void save_cursor(Terminal *term, int save)
32874aea 893{
374330e2 894 if (save) {
887035a5 895 term->savecurs = term->curs;
896 term->save_attr = term->curr_attr;
897 term->save_cset = term->cset;
898 term->save_utf = term->utf;
899 term->save_wnext = term->wrapnext;
900 term->save_csattr = term->cset_attr[term->cset];
901 term->save_sco_acs = term->sco_acs;
374330e2 902 } else {
887035a5 903 term->curs = term->savecurs;
c9def1b8 904 /* Make sure the window hasn't shrunk since the save */
887035a5 905 if (term->curs.x >= term->cols)
906 term->curs.x = term->cols - 1;
907 if (term->curs.y >= term->rows)
908 term->curs.y = term->rows - 1;
909
910 term->curr_attr = term->save_attr;
911 term->cset = term->save_cset;
912 term->utf = term->save_utf;
913 term->wrapnext = term->save_wnext;
8c028e65 914 /*
915 * wrapnext might reset to False if the x position is no
916 * longer at the rightmost edge.
917 */
887035a5 918 if (term->wrapnext && term->curs.x < term->cols-1)
919 term->wrapnext = FALSE;
920 term->cset_attr[term->cset] = term->save_csattr;
921 term->sco_acs = term->save_sco_acs;
374330e2 922 fix_cpos;
887035a5 923 if (term->use_bce)
924 term->erase_char = (' ' | ATTR_ASCII |
925 (term->curr_attr &
926 (ATTR_FGMASK | ATTR_BGMASK)));
374330e2 927 }
928}
929
930/*
3c7366f8 931 * This function is called before doing _anything_ which affects
932 * only part of a line of text. It is used to mark the boundary
933 * between two character positions, and it indicates that some sort
934 * of effect is going to happen on only one side of that boundary.
935 *
936 * The effect of this function is to check whether a CJK
937 * double-width character is straddling the boundary, and to remove
938 * it and replace it with two spaces if so. (Of course, one or
939 * other of those spaces is then likely to be replaced with
940 * something else again, as a result of whatever happens next.)
941 *
942 * Also, if the boundary is at the right-hand _edge_ of the screen,
943 * it implies something deliberate is being done to the rightmost
944 * column position; hence we must clear LATTR_WRAPPED2.
945 *
946 * The input to the function is the coordinates of the _second_
947 * character of the pair.
948 */
949static void check_boundary(Terminal *term, int x, int y)
950{
951 unsigned long *ldata;
952
953 /* Validate input coordinates, just in case. */
954 if (x == 0 || x > term->cols)
955 return;
956
957 ldata = lineptr(y);
958 if (x == term->cols) {
959 ldata[x] &= ~LATTR_WRAPPED2;
960 } else {
961 if ((ldata[x] & (CHAR_MASK | CSET_MASK)) == UCSWIDE) {
962 ldata[x-1] = ldata[x] =
963 (ldata[x-1] &~ (CHAR_MASK | CSET_MASK)) | ATTR_ASCII | ' ';
964 }
965 }
966}
967
968/*
374330e2 969 * Erase a large portion of the screen: the whole screen, or the
970 * whole line, or parts thereof.
971 */
887035a5 972static void erase_lots(Terminal *term,
973 int line_only, int from_begin, int to_end)
32874aea 974{
260f3dec 975 pos start, end;
4facdf84 976 int erase_lattr;
977 unsigned long *ldata;
374330e2 978
979 if (line_only) {
887035a5 980 start.y = term->curs.y;
4facdf84 981 start.x = 0;
887035a5 982 end.y = term->curs.y + 1;
4facdf84 983 end.x = 0;
984 erase_lattr = FALSE;
374330e2 985 } else {
4facdf84 986 start.y = 0;
987 start.x = 0;
887035a5 988 end.y = term->rows;
4facdf84 989 end.x = 0;
990 erase_lattr = TRUE;
991 }
992 if (!from_begin) {
887035a5 993 start = term->curs;
374330e2 994 }
4facdf84 995 if (!to_end) {
887035a5 996 end = term->curs;
2a6dfe0e 997 incpos(end);
4facdf84 998 }
3c7366f8 999 if (!from_begin || !to_end)
1000 check_boundary(term, term->curs.x, term->curs.y);
887035a5 1001 check_selection(term, start, end);
e14a5a13 1002
1003 /* Clear screen also forces a full window redraw, just in case. */
887035a5 1004 if (start.y == 0 && start.x == 0 && end.y == term->rows)
1005 term_invalidate(term);
e14a5a13 1006
4facdf84 1007 ldata = lineptr(start.y);
1008 while (poslt(start, end)) {
37ca32ed 1009 if (start.x == term->cols) {
ff5b3e7d 1010 if (!erase_lattr)
c3ae173d 1011 ldata[start.x] &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
ff5b3e7d 1012 else
1013 ldata[start.x] = LATTR_NORM;
37ca32ed 1014 } else {
887035a5 1015 ldata[start.x] = term->erase_char;
37ca32ed 1016 }
887035a5 1017 if (incpos(start) && start.y < term->rows)
4facdf84 1018 ldata = lineptr(start.y);
1019 }
374330e2 1020}
1021
1022/*
1023 * Insert or delete characters within the current line. n is +ve if
1024 * insertion is desired, and -ve for deletion.
1025 */
887035a5 1026static void insch(Terminal *term, int n)
32874aea 1027{
374330e2 1028 int dir = (n < 0 ? -1 : +1);
1029 int m;
4facdf84 1030 pos cursplus;
1031 unsigned long *ldata;
374330e2 1032
1033 n = (n < 0 ? -n : n);
887035a5 1034 if (n > term->cols - term->curs.x)
1035 n = term->cols - term->curs.x;
1036 m = term->cols - term->curs.x - n;
1037 cursplus.y = term->curs.y;
1038 cursplus.x = term->curs.x + n;
1039 check_selection(term, term->curs, cursplus);
3c7366f8 1040 check_boundary(term, term->curs.x, term->curs.y);
1041 if (dir < 0)
1042 check_boundary(term, term->curs.x + n, term->curs.y);
887035a5 1043 ldata = lineptr(term->curs.y);
374330e2 1044 if (dir < 0) {
887035a5 1045 memmove(ldata + term->curs.x, ldata + term->curs.x + n, m * TSIZE);
374330e2 1046 while (n--)
887035a5 1047 ldata[term->curs.x + m++] = term->erase_char;
374330e2 1048 } else {
887035a5 1049 memmove(ldata + term->curs.x + n, ldata + term->curs.x, m * TSIZE);
374330e2 1050 while (n--)
887035a5 1051 ldata[term->curs.x + n] = term->erase_char;
374330e2 1052 }
1053}
1054
1055/*
1056 * Toggle terminal mode `mode' to state `state'. (`query' indicates
1057 * whether the mode is a DEC private one or a normal one.)
1058 */
887035a5 1059static void toggle_mode(Terminal *term, int mode, int query, int state)
32874aea 1060{
286c6b86 1061 unsigned long ticks;
01c034ad 1062
32874aea 1063 if (query)
1064 switch (mode) {
1065 case 1: /* application cursor keys */
887035a5 1066 term->app_cursor_keys = state;
32874aea 1067 break;
1068 case 2: /* VT52 mode */
887035a5 1069 term->vt52_mode = !state;
1070 if (term->vt52_mode) {
1071 term->blink_is_real = FALSE;
1072 term->vt52_bold = FALSE;
4eeb7d09 1073 } else {
64734920 1074 term->blink_is_real = term->cfg.blinktext;
4eeb7d09 1075 }
32874aea 1076 break;
1077 case 3: /* 80/132 columns */
887035a5 1078 deselect(term);
64734920 1079 if (!term->cfg.no_remote_resize)
a8327734 1080 request_resize(term->frontend, state ? 132 : 80, term->rows);
887035a5 1081 term->reset_132 = state;
32874aea 1082 break;
1083 case 5: /* reverse video */
1084 /*
1085 * Toggle reverse video. If we receive an OFF within the
1086 * visual bell timeout period after an ON, we trigger an
1087 * effective visual bell, so that ESC[?5hESC[?5l will
1088 * always be an actually _visible_ visual bell.
1089 */
f7f27309 1090 ticks = GETTICKCOUNT();
286c6b86 1091 /* turn off a previous vbell to avoid inconsistencies */
887035a5 1092 if (ticks - term->vbell_startpoint >= VBELL_TIMEOUT)
1093 term->in_vbell = FALSE;
1094 if (term->rvideo && !state && /* we're turning it off... */
1095 (ticks - term->rvbell_startpoint) < VBELL_TIMEOUT) {/*...soon*/
286c6b86 1096 /* If there's no vbell timeout already, or this one lasts
1097 * longer, replace vbell_timeout with ours. */
887035a5 1098 if (!term->in_vbell ||
1099 (term->rvbell_startpoint - term->vbell_startpoint <
1100 VBELL_TIMEOUT))
1101 term->vbell_startpoint = term->rvbell_startpoint;
1102 term->in_vbell = TRUE; /* may clear rvideo but set in_vbell */
1103 } else if (!term->rvideo && state) {
32874aea 1104 /* This is an ON, so we notice the time and save it. */
887035a5 1105 term->rvbell_startpoint = ticks;
32874aea 1106 }
887035a5 1107 term->rvideo = state;
1108 term->seen_disp_event = TRUE;
32874aea 1109 if (state)
887035a5 1110 term_update(term);
32874aea 1111 break;
1112 case 6: /* DEC origin mode */
887035a5 1113 term->dec_om = state;
32874aea 1114 break;
1115 case 7: /* auto wrap */
887035a5 1116 term->wrap = state;
32874aea 1117 break;
1118 case 8: /* auto key repeat */
887035a5 1119 term->repeat_off = !state;
32874aea 1120 break;
1121 case 10: /* set local edit mode */
887035a5 1122 term->term_editing = state;
b9d7bcad 1123 if (term->ldisc) /* cause ldisc to notice changes */
1124 ldisc_send(term->ldisc, NULL, 0, 0);
32874aea 1125 break;
1126 case 25: /* enable/disable cursor */
1127 compatibility2(OTHER, VT220);
887035a5 1128 term->cursor_on = state;
1129 term->seen_disp_event = TRUE;
32874aea 1130 break;
1131 case 47: /* alternate screen */
1132 compatibility(OTHER);
887035a5 1133 deselect(term);
64734920 1134 swap_screen(term, term->cfg.no_alt_screen ? 0 : state, FALSE, FALSE);
887035a5 1135 term->disptop = 0;
32874aea 1136 break;
1137 case 1000: /* xterm mouse 1 */
887035a5 1138 term->xterm_mouse = state ? 1 : 0;
a8327734 1139 set_raw_mouse_mode(term->frontend, state);
32874aea 1140 break;
1141 case 1002: /* xterm mouse 2 */
887035a5 1142 term->xterm_mouse = state ? 2 : 0;
a8327734 1143 set_raw_mouse_mode(term->frontend, state);
32874aea 1144 break;
8f9b6a1a 1145 case 1047: /* alternate screen */
1146 compatibility(OTHER);
887035a5 1147 deselect(term);
64734920 1148 swap_screen(term, term->cfg.no_alt_screen ? 0 : state, TRUE, TRUE);
887035a5 1149 term->disptop = 0;
8f9b6a1a 1150 break;
1151 case 1048: /* save/restore cursor */
887035a5 1152 save_cursor(term, state);
1153 if (!state) term->seen_disp_event = TRUE;
8f9b6a1a 1154 break;
1155 case 1049: /* cursor & alternate screen */
1156 if (state)
887035a5 1157 save_cursor(term, state);
1158 if (!state) term->seen_disp_event = TRUE;
8f9b6a1a 1159 compatibility(OTHER);
887035a5 1160 deselect(term);
64734920 1161 swap_screen(term, term->cfg.no_alt_screen ? 0 : state, TRUE, FALSE);
8f9b6a1a 1162 if (!state)
887035a5 1163 save_cursor(term, state);
1164 term->disptop = 0;
8f9b6a1a 1165 break;
32874aea 1166 } else
1167 switch (mode) {
1168 case 4: /* set insert mode */
1169 compatibility(VT102);
887035a5 1170 term->insert = state;
32874aea 1171 break;
1172 case 12: /* set echo mode */
887035a5 1173 term->term_echoing = !state;
b9d7bcad 1174 if (term->ldisc) /* cause ldisc to notice changes */
1175 ldisc_send(term->ldisc, NULL, 0, 0);
32874aea 1176 break;
1177 case 20: /* Return sends ... */
887035a5 1178 term->cr_lf_return = state;
32874aea 1179 break;
4eeb7d09 1180 case 34: /* Make cursor BIG */
1181 compatibility2(OTHER, VT220);
887035a5 1182 term->big_cursor = !state;
7594731b 1183 }
374330e2 1184}
1185
1186/*
1187 * Process an OSC sequence: set window title or icon name.
1188 */
887035a5 1189static void do_osc(Terminal *term)
32874aea 1190{
887035a5 1191 if (term->osc_w) {
1192 while (term->osc_strlen--)
1193 term->wordness[(unsigned char)
1194 term->osc_string[term->osc_strlen]] = term->esc_args[0];
374330e2 1195 } else {
887035a5 1196 term->osc_string[term->osc_strlen] = '\0';
1197 switch (term->esc_args[0]) {
374330e2 1198 case 0:
1199 case 1:
64734920 1200 if (!term->cfg.no_remote_wintitle)
a8327734 1201 set_icon(term->frontend, term->osc_string);
887035a5 1202 if (term->esc_args[0] == 1)
374330e2 1203 break;
1204 /* fall through: parameter 0 means set both */
1205 case 2:
1206 case 21:
64734920 1207 if (!term->cfg.no_remote_wintitle)
a8327734 1208 set_title(term->frontend, term->osc_string);
374330e2 1209 break;
1210 }
1211 }
1212}
1213
1214/*
b44b307a 1215 * ANSI printing routines.
1216 */
887035a5 1217static void term_print_setup(Terminal *term)
b44b307a 1218{
887035a5 1219 bufchain_clear(&term->printer_buf);
64734920 1220 term->print_job = printer_start_job(term->cfg.printer);
b44b307a 1221}
887035a5 1222static void term_print_flush(Terminal *term)
b44b307a 1223{
1224 void *data;
1225 int len;
1226 int size;
887035a5 1227 while ((size = bufchain_size(&term->printer_buf)) > 5) {
1228 bufchain_prefix(&term->printer_buf, &data, &len);
b44b307a 1229 if (len > size-5)
1230 len = size-5;
887035a5 1231 printer_job_data(term->print_job, data, len);
1232 bufchain_consume(&term->printer_buf, len);
b44b307a 1233 }
1234}
887035a5 1235static void term_print_finish(Terminal *term)
b44b307a 1236{
1237 void *data;
1238 int len, size;
1239 char c;
1240
887035a5 1241 if (!term->printing && !term->only_printing)
1709795f 1242 return; /* we need do nothing */
1243
887035a5 1244 term_print_flush(term);
1245 while ((size = bufchain_size(&term->printer_buf)) > 0) {
1246 bufchain_prefix(&term->printer_buf, &data, &len);
b44b307a 1247 c = *(char *)data;
1248 if (c == '\033' || c == '\233') {
887035a5 1249 bufchain_consume(&term->printer_buf, size);
b44b307a 1250 break;
1251 } else {
887035a5 1252 printer_job_data(term->print_job, &c, 1);
1253 bufchain_consume(&term->printer_buf, 1);
b44b307a 1254 }
1255 }
887035a5 1256 printer_finish_job(term->print_job);
1257 term->print_job = NULL;
1258 term->printing = term->only_printing = FALSE;
b44b307a 1259}
1260
1261/*
374330e2 1262 * Remove everything currently in `inbuf' and stick it up on the
1263 * in-memory display. There's a big state machine in here to
1264 * process escape sequences...
1265 */
887035a5 1266void term_out(Terminal *term)
32874aea 1267{
a748a096 1268 int c, unget;
1269 unsigned char localbuf[256], *chars;
1270 int nchars = 0;
1271
1272 unget = -1;
1273
1709795f 1274 chars = NULL; /* placate compiler warnings */
887035a5 1275 while (nchars > 0 || bufchain_size(&term->inbuf) > 0) {
a748a096 1276 if (unget == -1) {
1277 if (nchars == 0) {
1278 void *ret;
887035a5 1279 bufchain_prefix(&term->inbuf, &ret, &nchars);
a748a096 1280 if (nchars > sizeof(localbuf))
1281 nchars = sizeof(localbuf);
1282 memcpy(localbuf, ret, nchars);
887035a5 1283 bufchain_consume(&term->inbuf, nchars);
a748a096 1284 chars = localbuf;
1285 assert(chars != NULL);
1286 }
1287 c = *chars++;
1288 nchars--;
c9def1b8 1289
a748a096 1290 /*
1291 * Optionally log the session traffic to a file. Useful for
1292 * debugging and possibly also useful for actual logging.
1293 */
64734920 1294 if (term->cfg.logtype == LGTYP_DEBUG && term->logctx)
a8327734 1295 logtraffic(term->logctx, (unsigned char) c, LGTYP_DEBUG);
a748a096 1296 } else {
1297 c = unget;
1298 unget = -1;
5a16642f 1299 }
1300
e14a5a13 1301 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1302 * be able to display 8-bit characters, but I'll let that go 'cause
1303 * of i18n.
1304 */
4eeb7d09 1305
b44b307a 1306 /*
1307 * If we're printing, add the character to the printer
1308 * buffer.
1309 */
887035a5 1310 if (term->printing) {
1311 bufchain_add(&term->printer_buf, &c, 1);
b44b307a 1312
1313 /*
1314 * If we're in print-only mode, we use a much simpler
1315 * state machine designed only to recognise the ESC[4i
1316 * termination sequence.
1317 */
887035a5 1318 if (term->only_printing) {
b44b307a 1319 if (c == '\033')
887035a5 1320 term->print_state = 1;
b44b307a 1321 else if (c == (unsigned char)'\233')
887035a5 1322 term->print_state = 2;
1323 else if (c == '[' && term->print_state == 1)
1324 term->print_state = 2;
1325 else if (c == '4' && term->print_state == 2)
1326 term->print_state = 3;
1327 else if (c == 'i' && term->print_state == 3)
1328 term->print_state = 4;
b44b307a 1329 else
887035a5 1330 term->print_state = 0;
1331 if (term->print_state == 4) {
1332 term_print_finish(term);
b44b307a 1333 }
1334 continue;
1335 }
1336 }
1337
4eeb7d09 1338 /* First see about all those translations. */
887035a5 1339 if (term->termstate == TOPLEVEL) {
1340 if (in_utf(term))
1341 switch (term->utf_state) {
4eeb7d09 1342 case 0:
1343 if (c < 0x80) {
8f22582c 1344 /* UTF-8 must be stateless so we ignore iso2022. */
21d2b241 1345 if (term->ucsdata->unitab_ctrl[c] != 0xFF)
1346 c = term->ucsdata->unitab_ctrl[c];
8f22582c 1347 else c = ((unsigned char)c) | ATTR_ASCII;
1348 break;
4eeb7d09 1349 } else if ((c & 0xe0) == 0xc0) {
887035a5 1350 term->utf_size = term->utf_state = 1;
1351 term->utf_char = (c & 0x1f);
4eeb7d09 1352 } else if ((c & 0xf0) == 0xe0) {
887035a5 1353 term->utf_size = term->utf_state = 2;
1354 term->utf_char = (c & 0x0f);
4eeb7d09 1355 } else if ((c & 0xf8) == 0xf0) {
887035a5 1356 term->utf_size = term->utf_state = 3;
1357 term->utf_char = (c & 0x07);
4eeb7d09 1358 } else if ((c & 0xfc) == 0xf8) {
887035a5 1359 term->utf_size = term->utf_state = 4;
1360 term->utf_char = (c & 0x03);
4eeb7d09 1361 } else if ((c & 0xfe) == 0xfc) {
887035a5 1362 term->utf_size = term->utf_state = 5;
1363 term->utf_char = (c & 0x01);
4eeb7d09 1364 } else {
1365 c = UCSERR;
1366 break;
1367 }
1368 continue;
1369 case 1:
1370 case 2:
1371 case 3:
1372 case 4:
1373 case 5:
1374 if ((c & 0xC0) != 0x80) {
a748a096 1375 unget = c;
5a16642f 1376 c = UCSERR;
887035a5 1377 term->utf_state = 0;
4eeb7d09 1378 break;
1379 }
887035a5 1380 term->utf_char = (term->utf_char << 6) | (c & 0x3f);
1381 if (--term->utf_state)
4eeb7d09 1382 continue;
1383
887035a5 1384 c = term->utf_char;
4eeb7d09 1385
1386 /* Is somebody trying to be evil! */
1387 if (c < 0x80 ||
887035a5 1388 (c < 0x800 && term->utf_size >= 2) ||
1389 (c < 0x10000 && term->utf_size >= 3) ||
1390 (c < 0x200000 && term->utf_size >= 4) ||
1391 (c < 0x4000000 && term->utf_size >= 5))
4eeb7d09 1392 c = UCSERR;
1393
1394 /* Unicode line separator and paragraph separator are CR-LF */
1395 if (c == 0x2028 || c == 0x2029)
1396 c = 0x85;
1397
1398 /* High controls are probably a Baaad idea too. */
1399 if (c < 0xA0)
1400 c = 0xFFFD;
1401
1402 /* The UTF-16 surrogates are not nice either. */
1403 /* The standard give the option of decoding these:
1404 * I don't want to! */
1405 if (c >= 0xD800 && c < 0xE000)
1406 c = UCSERR;
1407
1408 /* ISO 10646 characters now limited to UTF-16 range. */
1409 if (c > 0x10FFFF)
1410 c = UCSERR;
1411
1412 /* This is currently a TagPhobic application.. */
1413 if (c >= 0xE0000 && c <= 0xE007F)
1414 continue;
1415
1416 /* U+FEFF is best seen as a null. */
1417 if (c == 0xFEFF)
1418 continue;
1419 /* But U+FFFE is an error. */
1420 if (c == 0xFFFE || c == 0xFFFF)
1421 c = UCSERR;
1422
1423 /* Oops this is a 16bit implementation */
1424 if (c >= 0x10000)
1425 c = 0xFFFD;
1426 break;
d3cb5465 1427 }
1428 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
887035a5 1429 else if(term->sco_acs &&
92e23ad9 1430 (c!='\033' && c!='\012' && c!='\015' && c!='\b'))
d3cb5465 1431 {
5dc6132d 1432 if (term->sco_acs == 2) c |= 0x80;
d3cb5465 1433 c |= ATTR_SCOACS;
4eeb7d09 1434 } else {
887035a5 1435 switch (term->cset_attr[term->cset]) {
4eeb7d09 1436 /*
1437 * Linedraw characters are different from 'ESC ( B'
1438 * only for a small range. For ones outside that
1439 * range, make sure we use the same font as well as
1440 * the same encoding.
1441 */
1442 case ATTR_LINEDRW:
21d2b241 1443 if (term->ucsdata->unitab_ctrl[c] != 0xFF)
1444 c = term->ucsdata->unitab_ctrl[c];
4eeb7d09 1445 else
1446 c = ((unsigned char) c) | ATTR_LINEDRW;
1447 break;
1448
1449 case ATTR_GBCHR:
1450 /* If UK-ASCII, make the '#' a LineDraw Pound */
1451 if (c == '#') {
1452 c = '}' | ATTR_LINEDRW;
1453 break;
1454 }
1455 /*FALLTHROUGH*/ case ATTR_ASCII:
21d2b241 1456 if (term->ucsdata->unitab_ctrl[c] != 0xFF)
1457 c = term->ucsdata->unitab_ctrl[c];
4eeb7d09 1458 else
1459 c = ((unsigned char) c) | ATTR_ASCII;
1460 break;
d3cb5465 1461 case ATTR_SCOACS:
1462 if (c>=' ') c = ((unsigned char)c) | ATTR_SCOACS;
1463 break;
4eeb7d09 1464 }
1465 }
1466 }
1467
1468 /* How about C1 controls ? */
887035a5 1469 if ((c & -32) == 0x80 && term->termstate < DO_CTRLS &&
1470 !term->vt52_mode && has_compat(VT220)) {
1471 term->termstate = SEEN_ESC;
1472 term->esc_query = FALSE;
4eeb7d09 1473 c = '@' + (c & 0x1F);
1474 }
1475
1476 /* Or the GL control. */
887035a5 1477 if (c == '\177' && term->termstate < DO_CTRLS && has_compat(OTHER)) {
1478 if (term->curs.x && !term->wrapnext)
1479 term->curs.x--;
1480 term->wrapnext = FALSE;
4eeb7d09 1481 fix_cpos;
64734920 1482 if (!term->cfg.no_dbackspace) /* destructive bksp might be disabled */
887035a5 1483 *term->cpos = (' ' | term->curr_attr | ATTR_ASCII);
4eeb7d09 1484 } else
1485 /* Or normal C0 controls. */
887035a5 1486 if ((c & -32) == 0 && term->termstate < DO_CTRLS) {
374330e2 1487 switch (c) {
1488 case '\005': /* terminal type query */
e14a5a13 1489 /* Strictly speaking this is VT100 but a VT100 defaults to
1490 * no response. Other terminals respond at their option.
1491 *
1492 * Don't put a CR in the default string as this tends to
1493 * upset some weird software.
1494 *
1495 * An xterm returns "xterm" (5 characters)
1496 */
32874aea 1497 compatibility(ANSIMIN);
b9d7bcad 1498 if (term->ldisc) {
e7fbcdd8 1499 char abuf[256], *s, *d;
32874aea 1500 int state = 0;
64734920 1501 for (s = term->cfg.answerback, d = abuf; *s; s++) {
32874aea 1502 if (state) {
1503 if (*s >= 'a' && *s <= 'z')
1504 *d++ = (*s - ('a' - 1));
1505 else if ((*s >= '@' && *s <= '_') ||
1506 *s == '?' || (*s & 0x80))
1507 *d++ = ('@' ^ *s);
1508 else if (*s == '~')
1509 *d++ = '^';
1510 state = 0;
1511 } else if (*s == '^') {
1512 state = 1;
1513 } else
4eeb7d09 1514 *d++ = *s;
e7fbcdd8 1515 }
b9d7bcad 1516 lpage_send(term->ldisc, DEFAULT_CODEPAGE,
1517 abuf, d - abuf, 0);
e7fbcdd8 1518 }
374330e2 1519 break;
1520 case '\007':
156686ef 1521 {
1522 struct beeptime *newbeep;
286c6b86 1523 unsigned long ticks;
156686ef 1524
f7f27309 1525 ticks = GETTICKCOUNT();
156686ef 1526
887035a5 1527 if (!term->beep_overloaded) {
156686ef 1528 newbeep = smalloc(sizeof(struct beeptime));
1529 newbeep->ticks = ticks;
1530 newbeep->next = NULL;
887035a5 1531 if (!term->beephead)
1532 term->beephead = newbeep;
156686ef 1533 else
887035a5 1534 term->beeptail->next = newbeep;
1535 term->beeptail = newbeep;
1536 term->nbeeps++;
156686ef 1537 }
1538
1539 /*
1540 * Throw out any beeps that happened more than
1541 * t seconds ago.
1542 */
887035a5 1543 while (term->beephead &&
64734920 1544 term->beephead->ticks < ticks - term->cfg.bellovl_t) {
887035a5 1545 struct beeptime *tmp = term->beephead;
1546 term->beephead = tmp->next;
156686ef 1547 sfree(tmp);
887035a5 1548 if (!term->beephead)
1549 term->beeptail = NULL;
1550 term->nbeeps--;
156686ef 1551 }
1552
64734920 1553 if (term->cfg.bellovl && term->beep_overloaded &&
1554 ticks - term->lastbeep >= (unsigned)term->cfg.bellovl_s) {
156686ef 1555 /*
1556 * If we're currently overloaded and the
1557 * last beep was more than s seconds ago,
1558 * leave overload mode.
1559 */
887035a5 1560 term->beep_overloaded = FALSE;
64734920 1561 } else if (term->cfg.bellovl && !term->beep_overloaded &&
1562 term->nbeeps >= term->cfg.bellovl_n) {
156686ef 1563 /*
1564 * Now, if we have n or more beeps
1565 * remaining in the queue, go into overload
1566 * mode.
1567 */
887035a5 1568 term->beep_overloaded = TRUE;
156686ef 1569 }
887035a5 1570 term->lastbeep = ticks;
156686ef 1571
1572 /*
1573 * Perform an actual beep if we're not overloaded.
1574 */
64734920 1575 if (!term->cfg.bellovl || !term->beep_overloaded) {
1576 beep(term->frontend, term->cfg.beep);
1577 if (term->cfg.beep == BELL_VISUAL) {
887035a5 1578 term->in_vbell = TRUE;
1579 term->vbell_startpoint = ticks;
1580 term_update(term);
0ce89525 1581 }
156686ef 1582 }
887035a5 1583 term->disptop = 0;
156686ef 1584 }
374330e2 1585 break;
1586 case '\b':
887035a5 1587 if (term->curs.x == 0 &&
1588 (term->curs.y == 0 || term->wrap == 0))
1589 /* do nothing */ ;
1590 else if (term->curs.x == 0 && term->curs.y > 0)
1591 term->curs.x = term->cols - 1, term->curs.y--;
1592 else if (term->wrapnext)
1593 term->wrapnext = FALSE;
374330e2 1594 else
887035a5 1595 term->curs.x--;
374330e2 1596 fix_cpos;
887035a5 1597 term->seen_disp_event = TRUE;
374330e2 1598 break;
1599 case '\016':
32874aea 1600 compatibility(VT100);
887035a5 1601 term->cset = 1;
374330e2 1602 break;
1603 case '\017':
32874aea 1604 compatibility(VT100);
887035a5 1605 term->cset = 0;
374330e2 1606 break;
1607 case '\033':
887035a5 1608 if (term->vt52_mode)
1609 term->termstate = VT52_ESC;
e14a5a13 1610 else {
1611 compatibility(ANSIMIN);
887035a5 1612 term->termstate = SEEN_ESC;
1613 term->esc_query = FALSE;
e14a5a13 1614 }
374330e2 1615 break;
92e23ad9 1616 case '\015':
887035a5 1617 term->curs.x = 0;
1618 term->wrapnext = FALSE;
374330e2 1619 fix_cpos;
887035a5 1620 term->seen_disp_event = TRUE;
1621 term->paste_hold = 0;
a8327734 1622 if (term->logctx)
1623 logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
374330e2 1624 break;
374330e2 1625 case '\014':
1a837633 1626 if (has_compat(SCOANSI)) {
887035a5 1627 move(term, 0, 0, 0);
1628 erase_lots(term, FALSE, FALSE, TRUE);
1629 term->disptop = 0;
1630 term->wrapnext = FALSE;
1631 term->seen_disp_event = 1;
1a837633 1632 break;
1633 }
1634 case '\013':
32874aea 1635 compatibility(VT100);
92e23ad9 1636 case '\012':
887035a5 1637 if (term->curs.y == term->marg_b)
1638 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
1639 else if (term->curs.y < term->rows - 1)
1640 term->curs.y++;
64734920 1641 if (term->cfg.lfhascr)
887035a5 1642 term->curs.x = 0;
374330e2 1643 fix_cpos;
887035a5 1644 term->wrapnext = FALSE;
1645 term->seen_disp_event = 1;
1646 term->paste_hold = 0;
a8327734 1647 if (term->logctx)
1648 logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
374330e2 1649 break;
1650 case '\t':
374330e2 1651 {
887035a5 1652 pos old_curs = term->curs;
1653 unsigned long *ldata = lineptr(term->curs.y);
c9def1b8 1654
1655 do {
887035a5 1656 term->curs.x++;
1657 } while (term->curs.x < term->cols - 1 &&
1658 !term->tabs[term->curs.x]);
c9def1b8 1659
887035a5 1660 if ((ldata[term->cols] & LATTR_MODE) != LATTR_NORM) {
1661 if (term->curs.x >= term->cols / 2)
1662 term->curs.x = term->cols / 2 - 1;
32874aea 1663 } else {
887035a5 1664 if (term->curs.x >= term->cols)
1665 term->curs.x = term->cols - 1;
c9def1b8 1666 }
1667
374330e2 1668 fix_cpos;
887035a5 1669 check_selection(term, old_curs, term->curs);
374330e2 1670 }
887035a5 1671 term->seen_disp_event = TRUE;
374330e2 1672 break;
cabfd08c 1673 }
32874aea 1674 } else
887035a5 1675 switch (term->termstate) {
32874aea 1676 case TOPLEVEL:
887035a5 1677 /* Only graphic characters get this far;
1678 * ctrls are stripped above */
1679 if (term->wrapnext && term->wrap) {
1680 term->cpos[1] |= LATTR_WRAPPED;
1681 if (term->curs.y == term->marg_b)
1682 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
1683 else if (term->curs.y < term->rows - 1)
1684 term->curs.y++;
1685 term->curs.x = 0;
32874aea 1686 fix_cpos;
887035a5 1687 term->wrapnext = FALSE;
374330e2 1688 }
887035a5 1689 if (term->insert)
1690 insch(term, 1);
1691 if (term->selstate != NO_SELECTION) {
1692 pos cursplus = term->curs;
32874aea 1693 incpos(cursplus);
887035a5 1694 check_selection(term, term->curs, cursplus);
374330e2 1695 }
a8327734 1696 if (((c & CSET_MASK) == ATTR_ASCII || (c & CSET_MASK) == 0) &&
1697 term->logctx)
1698 logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
4eeb7d09 1699 {
4eeb7d09 1700 int width = 0;
1701 if (DIRECT_CHAR(c))
1702 width = 1;
1703 if (!width)
1704 width = wcwidth((wchar_t) c);
1705 switch (width) {
1706 case 2:
3c7366f8 1707 /*
1708 * If we're about to display a double-width
1709 * character starting in the rightmost
1710 * column, then we do something special
1711 * instead. We must print a space in the
1712 * last column of the screen, then wrap;
1713 * and we also set LATTR_WRAPPED2 which
1714 * instructs subsequent cut-and-pasting not
1715 * only to splice this line to the one
1716 * after it, but to ignore the space in the
1717 * last character position as well.
1718 * (Because what was actually output to the
1719 * terminal was presumably just a sequence
1720 * of CJK characters, and we don't want a
1721 * space to be pasted in the middle of
1722 * those just because they had the
1723 * misfortune to start in the wrong parity
1724 * column. xterm concurs.)
1725 */
1726 check_boundary(term, term->curs.x, term->curs.y);
1727 check_boundary(term, term->curs.x+2, term->curs.y);
1728 if (term->curs.x == term->cols-1) {
1729 *term->cpos++ = ATTR_ASCII | ' ' | term->curr_attr;
1730 *term->cpos |= LATTR_WRAPPED | LATTR_WRAPPED2;
887035a5 1731 if (term->curs.y == term->marg_b)
1732 scroll(term, term->marg_t, term->marg_b,
1733 1, TRUE);
1734 else if (term->curs.y < term->rows - 1)
1735 term->curs.y++;
1736 term->curs.x = 0;
5a73255e 1737 fix_cpos;
3c7366f8 1738 /* Now we must check_boundary again, of course. */
1739 check_boundary(term, term->curs.x, term->curs.y);
1740 check_boundary(term, term->curs.x+2, term->curs.y);
4eeb7d09 1741 }
3c7366f8 1742 *term->cpos++ = c | term->curr_attr;
887035a5 1743 *term->cpos++ = UCSWIDE | term->curr_attr;
3c7366f8 1744 term->curs.x++;
5a73255e 1745 break;
4eeb7d09 1746 case 1:
3c7366f8 1747 check_boundary(term, term->curs.x, term->curs.y);
1748 check_boundary(term, term->curs.x+1, term->curs.y);
887035a5 1749 *term->cpos++ = c | term->curr_attr;
32874aea 1750 break;
4eeb7d09 1751 default:
1752 continue;
32874aea 1753 }
374330e2 1754 }
887035a5 1755 term->curs.x++;
1756 if (term->curs.x == term->cols) {
1757 term->cpos--;
1758 term->curs.x--;
1759 term->wrapnext = TRUE;
1760 if (term->wrap && term->vt52_mode) {
1761 term->cpos[1] |= LATTR_WRAPPED;
1762 if (term->curs.y == term->marg_b)
1763 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
1764 else if (term->curs.y < term->rows - 1)
1765 term->curs.y++;
1766 term->curs.x = 0;
4eeb7d09 1767 fix_cpos;
887035a5 1768 term->wrapnext = FALSE;
4eeb7d09 1769 }
e14a5a13 1770 }
887035a5 1771 term->seen_disp_event = 1;
374330e2 1772 break;
32874aea 1773
32874aea 1774 case OSC_MAYBE_ST:
1775 /*
1776 * This state is virtually identical to SEEN_ESC, with the
1777 * exception that we have an OSC sequence in the pipeline,
1778 * and _if_ we see a backslash, we process it.
1779 */
1780 if (c == '\\') {
887035a5 1781 do_osc(term);
1782 term->termstate = TOPLEVEL;
32874aea 1783 break;
e14a5a13 1784 }
32874aea 1785 /* else fall through */
1786 case SEEN_ESC:
4eeb7d09 1787 if (c >= ' ' && c <= '/') {
887035a5 1788 if (term->esc_query)
1789 term->esc_query = -1;
4eeb7d09 1790 else
887035a5 1791 term->esc_query = c;
32874aea 1792 break;
4eeb7d09 1793 }
887035a5 1794 term->termstate = TOPLEVEL;
1795 switch (ANSI(c, term->esc_query)) {
32874aea 1796 case '[': /* enter CSI mode */
887035a5 1797 term->termstate = SEEN_CSI;
1798 term->esc_nargs = 1;
1799 term->esc_args[0] = ARG_DEFAULT;
1800 term->esc_query = FALSE;
32874aea 1801 break;
1802 case ']': /* xterm escape sequences */
1803 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1804 compatibility(OTHER);
887035a5 1805 term->termstate = SEEN_OSC;
1806 term->esc_args[0] = 0;
32874aea 1807 break;
32874aea 1808 case '7': /* save cursor */
1809 compatibility(VT100);
887035a5 1810 save_cursor(term, TRUE);
32874aea 1811 break;
1812 case '8': /* restore cursor */
1813 compatibility(VT100);
887035a5 1814 save_cursor(term, FALSE);
1815 term->seen_disp_event = TRUE;
32874aea 1816 break;
1817 case '=':
1818 compatibility(VT100);
887035a5 1819 term->app_keypad_keys = TRUE;
32874aea 1820 break;
1821 case '>':
1822 compatibility(VT100);
887035a5 1823 term->app_keypad_keys = FALSE;
32874aea 1824 break;
1825 case 'D': /* exactly equivalent to LF */
1826 compatibility(VT100);
887035a5 1827 if (term->curs.y == term->marg_b)
1828 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
1829 else if (term->curs.y < term->rows - 1)
1830 term->curs.y++;
32874aea 1831 fix_cpos;
887035a5 1832 term->wrapnext = FALSE;
1833 term->seen_disp_event = TRUE;
32874aea 1834 break;
1835 case 'E': /* exactly equivalent to CR-LF */
1836 compatibility(VT100);
887035a5 1837 term->curs.x = 0;
1838 if (term->curs.y == term->marg_b)
1839 scroll(term, term->marg_t, term->marg_b, 1, TRUE);
1840 else if (term->curs.y < term->rows - 1)
1841 term->curs.y++;
32874aea 1842 fix_cpos;
887035a5 1843 term->wrapnext = FALSE;
1844 term->seen_disp_event = TRUE;
32874aea 1845 break;
1846 case 'M': /* reverse index - backwards LF */
1847 compatibility(VT100);
887035a5 1848 if (term->curs.y == term->marg_t)
1849 scroll(term, term->marg_t, term->marg_b, -1, TRUE);
1850 else if (term->curs.y > 0)
1851 term->curs.y--;
32874aea 1852 fix_cpos;
887035a5 1853 term->wrapnext = FALSE;
1854 term->seen_disp_event = TRUE;
32874aea 1855 break;
1856 case 'Z': /* terminal type query */
1857 compatibility(VT100);
b9d7bcad 1858 if (term->ldisc)
1859 ldisc_send(term->ldisc, term->id_string,
1860 strlen(term->id_string), 0);
32874aea 1861 break;
1862 case 'c': /* restore power-on settings */
1863 compatibility(VT100);
887035a5 1864 power_on(term);
b9d7bcad 1865 if (term->ldisc) /* cause ldisc to notice changes */
1866 ldisc_send(term->ldisc, NULL, 0, 0);
887035a5 1867 if (term->reset_132) {
64734920 1868 if (!term->cfg.no_remote_resize)
a8327734 1869 request_resize(term->frontend, 80, term->rows);
887035a5 1870 term->reset_132 = 0;
374330e2 1871 }
32874aea 1872 fix_cpos;
887035a5 1873 term->disptop = 0;
1874 term->seen_disp_event = TRUE;
32874aea 1875 break;
32874aea 1876 case 'H': /* set a tab */
1877 compatibility(VT100);
887035a5 1878 term->tabs[term->curs.x] = TRUE;
32874aea 1879 break;
4eeb7d09 1880
1881 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1882 compatibility(VT100);
1883 {
1884 unsigned long *ldata;
1885 int i, j;
1886 pos scrtop, scrbot;
1887
887035a5 1888 for (i = 0; i < term->rows; i++) {
4eeb7d09 1889 ldata = lineptr(i);
887035a5 1890 for (j = 0; j < term->cols; j++)
4eeb7d09 1891 ldata[j] = ATTR_DEFAULT | 'E';
887035a5 1892 ldata[term->cols] = 0;
4eeb7d09 1893 }
887035a5 1894 term->disptop = 0;
1895 term->seen_disp_event = TRUE;
4eeb7d09 1896 scrtop.x = scrtop.y = 0;
1897 scrbot.x = 0;
887035a5 1898 scrbot.y = term->rows;
1899 check_selection(term, scrtop, scrbot);
4eeb7d09 1900 }
1901 break;
1902
1903 case ANSI('3', '#'):
1904 case ANSI('4', '#'):
1905 case ANSI('5', '#'):
1906 case ANSI('6', '#'):
1907 compatibility(VT100);
1908 {
1909 unsigned long nlattr;
1910 unsigned long *ldata;
887035a5 1911 switch (ANSI(c, term->esc_query)) {
4eeb7d09 1912 case ANSI('3', '#'):
1913 nlattr = LATTR_TOP;
1914 break;
1915 case ANSI('4', '#'):
1916 nlattr = LATTR_BOT;
1917 break;
1918 case ANSI('5', '#'):
1919 nlattr = LATTR_NORM;
1920 break;
2d466ffd 1921 default: /* spiritually case ANSI('6', '#'): */
4eeb7d09 1922 nlattr = LATTR_WIDE;
1923 break;
1924 }
887035a5 1925 ldata = lineptr(term->curs.y);
1926 ldata[term->cols] &= ~LATTR_MODE;
1927 ldata[term->cols] |= nlattr;
4eeb7d09 1928 }
1929 break;
1930
1931 case ANSI('A', '('):
1932 compatibility(VT100);
64734920 1933 if (!term->cfg.no_remote_charset)
887035a5 1934 term->cset_attr[0] = ATTR_GBCHR;
4eeb7d09 1935 break;
1936 case ANSI('B', '('):
1937 compatibility(VT100);
64734920 1938 if (!term->cfg.no_remote_charset)
887035a5 1939 term->cset_attr[0] = ATTR_ASCII;
4eeb7d09 1940 break;
1941 case ANSI('0', '('):
1942 compatibility(VT100);
64734920 1943 if (!term->cfg.no_remote_charset)
887035a5 1944 term->cset_attr[0] = ATTR_LINEDRW;
4eeb7d09 1945 break;
d3cb5465 1946 case ANSI('U', '('):
1947 compatibility(OTHER);
64734920 1948 if (!term->cfg.no_remote_charset)
887035a5 1949 term->cset_attr[0] = ATTR_SCOACS;
d3cb5465 1950 break;
4eeb7d09 1951
1952 case ANSI('A', ')'):
1953 compatibility(VT100);
64734920 1954 if (!term->cfg.no_remote_charset)
887035a5 1955 term->cset_attr[1] = ATTR_GBCHR;
4eeb7d09 1956 break;
1957 case ANSI('B', ')'):
1958 compatibility(VT100);
64734920 1959 if (!term->cfg.no_remote_charset)
887035a5 1960 term->cset_attr[1] = ATTR_ASCII;
4eeb7d09 1961 break;
1962 case ANSI('0', ')'):
1963 compatibility(VT100);
64734920 1964 if (!term->cfg.no_remote_charset)
887035a5 1965 term->cset_attr[1] = ATTR_LINEDRW;
4eeb7d09 1966 break;
d3cb5465 1967 case ANSI('U', ')'):
1968 compatibility(OTHER);
64734920 1969 if (!term->cfg.no_remote_charset)
887035a5 1970 term->cset_attr[1] = ATTR_SCOACS;
d3cb5465 1971 break;
4eeb7d09 1972
1973 case ANSI('8', '%'): /* Old Linux code */
1974 case ANSI('G', '%'):
1975 compatibility(OTHER);
64734920 1976 if (!term->cfg.no_remote_charset)
887035a5 1977 term->utf = 1;
4eeb7d09 1978 break;
1979 case ANSI('@', '%'):
1980 compatibility(OTHER);
64734920 1981 if (!term->cfg.no_remote_charset)
887035a5 1982 term->utf = 0;
4eeb7d09 1983 break;
374330e2 1984 }
1985 break;
32874aea 1986 case SEEN_CSI:
887035a5 1987 term->termstate = TOPLEVEL; /* default */
32874aea 1988 if (isdigit(c)) {
887035a5 1989 if (term->esc_nargs <= ARGS_MAX) {
1990 if (term->esc_args[term->esc_nargs - 1] == ARG_DEFAULT)
1991 term->esc_args[term->esc_nargs - 1] = 0;
1992 term->esc_args[term->esc_nargs - 1] =
1993 10 * term->esc_args[term->esc_nargs - 1] + c - '0';
32874aea 1994 }
887035a5 1995 term->termstate = SEEN_CSI;
32874aea 1996 } else if (c == ';') {
887035a5 1997 if (++term->esc_nargs <= ARGS_MAX)
1998 term->esc_args[term->esc_nargs - 1] = ARG_DEFAULT;
1999 term->termstate = SEEN_CSI;
32874aea 2000 } else if (c < '@') {
887035a5 2001 if (term->esc_query)
2002 term->esc_query = -1;
32874aea 2003 else if (c == '?')
887035a5 2004 term->esc_query = TRUE;
32874aea 2005 else
887035a5 2006 term->esc_query = c;
2007 term->termstate = SEEN_CSI;
32874aea 2008 } else
887035a5 2009 switch (ANSI(c, term->esc_query)) {
32874aea 2010 case 'A': /* move up N lines */
887035a5 2011 move(term, term->curs.x,
2012 term->curs.y - def(term->esc_args[0], 1), 1);
2013 term->seen_disp_event = TRUE;
32874aea 2014 break;
2015 case 'e': /* move down N lines */
2016 compatibility(ANSI);
5442e92f 2017 /* FALLTHROUGH */
32874aea 2018 case 'B':
887035a5 2019 move(term, term->curs.x,
2020 term->curs.y + def(term->esc_args[0], 1), 1);
2021 term->seen_disp_event = TRUE;
32874aea 2022 break;
32874aea 2023 case ANSI('c', '>'): /* report xterm version */
2024 compatibility(OTHER);
2025 /* this reports xterm version 136 so that VIM can
2026 use the drag messages from the mouse reporting */
b9d7bcad 2027 if (term->ldisc)
2028 ldisc_send(term->ldisc, "\033[>0;136;0c", 11, 0);
32874aea 2029 break;
5442e92f 2030 case 'a': /* move right N cols */
2031 compatibility(ANSI);
2032 /* FALLTHROUGH */
32874aea 2033 case 'C':
887035a5 2034 move(term, term->curs.x + def(term->esc_args[0], 1),
2035 term->curs.y, 1);
2036 term->seen_disp_event = TRUE;
32874aea 2037 break;
2038 case 'D': /* move left N cols */
887035a5 2039 move(term, term->curs.x - def(term->esc_args[0], 1),
2040 term->curs.y, 1);
2041 term->seen_disp_event = TRUE;
32874aea 2042 break;
2043 case 'E': /* move down N lines and CR */
2044 compatibility(ANSI);
887035a5 2045 move(term, 0,
2046 term->curs.y + def(term->esc_args[0], 1), 1);
2047 term->seen_disp_event = TRUE;
32874aea 2048 break;
2049 case 'F': /* move up N lines and CR */
2050 compatibility(ANSI);
887035a5 2051 move(term, 0,
2052 term->curs.y - def(term->esc_args[0], 1), 1);
2053 term->seen_disp_event = TRUE;
32874aea 2054 break;
2055 case 'G':
2056 case '`': /* set horizontal posn */
2057 compatibility(ANSI);
887035a5 2058 move(term, def(term->esc_args[0], 1) - 1,
2059 term->curs.y, 0);
2060 term->seen_disp_event = TRUE;
32874aea 2061 break;
2062 case 'd': /* set vertical posn */
2063 compatibility(ANSI);
887035a5 2064 move(term, term->curs.x,
2065 ((term->dec_om ? term->marg_t : 0) +
2066 def(term->esc_args[0], 1) - 1),
2067 (term->dec_om ? 2 : 0));
2068 term->seen_disp_event = TRUE;
32874aea 2069 break;
2070 case 'H':
2071 case 'f': /* set horz and vert posns at once */
887035a5 2072 if (term->esc_nargs < 2)
2073 term->esc_args[1] = ARG_DEFAULT;
2074 move(term, def(term->esc_args[1], 1) - 1,
2075 ((term->dec_om ? term->marg_t : 0) +
2076 def(term->esc_args[0], 1) - 1),
2077 (term->dec_om ? 2 : 0));
2078 term->seen_disp_event = TRUE;
32874aea 2079 break;
2080 case 'J': /* erase screen or parts of it */
2081 {
887035a5 2082 unsigned int i = def(term->esc_args[0], 0) + 1;
32874aea 2083 if (i > 3)
2084 i = 0;
887035a5 2085 erase_lots(term, FALSE, !!(i & 2), !!(i & 1));
32874aea 2086 }
887035a5 2087 term->disptop = 0;
2088 term->seen_disp_event = TRUE;
32874aea 2089 break;
2090 case 'K': /* erase line or parts of it */
2091 {
887035a5 2092 unsigned int i = def(term->esc_args[0], 0) + 1;
32874aea 2093 if (i > 3)
2094 i = 0;
887035a5 2095 erase_lots(term, TRUE, !!(i & 2), !!(i & 1));
32874aea 2096 }
887035a5 2097 term->seen_disp_event = TRUE;
32874aea 2098 break;
2099 case 'L': /* insert lines */
2100 compatibility(VT102);
887035a5 2101 if (term->curs.y <= term->marg_b)
2102 scroll(term, term->curs.y, term->marg_b,
2103 -def(term->esc_args[0], 1), FALSE);
32874aea 2104 fix_cpos;
887035a5 2105 term->seen_disp_event = TRUE;
32874aea 2106 break;
2107 case 'M': /* delete lines */
2108 compatibility(VT102);
887035a5 2109 if (term->curs.y <= term->marg_b)
2110 scroll(term, term->curs.y, term->marg_b,
2111 def(term->esc_args[0], 1),
32874aea 2112 TRUE);
2113 fix_cpos;
887035a5 2114 term->seen_disp_event = TRUE;
32874aea 2115 break;
2116 case '@': /* insert chars */
2117 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2118 compatibility(VT102);
887035a5 2119 insch(term, def(term->esc_args[0], 1));
2120 term->seen_disp_event = TRUE;
32874aea 2121 break;
2122 case 'P': /* delete chars */
2123 compatibility(VT102);
887035a5 2124 insch(term, -def(term->esc_args[0], 1));
2125 term->seen_disp_event = TRUE;
32874aea 2126 break;
2127 case 'c': /* terminal type query */
2128 compatibility(VT100);
2129 /* This is the response for a VT102 */
b9d7bcad 2130 if (term->ldisc)
2131 ldisc_send(term->ldisc, term->id_string,
2132 strlen(term->id_string), 0);
32874aea 2133 break;
2134 case 'n': /* cursor position query */
b9d7bcad 2135 if (term->ldisc) {
2136 if (term->esc_args[0] == 6) {
2137 char buf[32];
2138 sprintf(buf, "\033[%d;%dR", term->curs.y + 1,
2139 term->curs.x + 1);
2140 ldisc_send(term->ldisc, buf, strlen(buf), 0);
2141 } else if (term->esc_args[0] == 5) {
2142 ldisc_send(term->ldisc, "\033[0n", 4, 0);
2143 }
32874aea 2144 }
2145 break;
2146 case 'h': /* toggle modes to high */
2147 case ANSI_QUE('h'):
2148 compatibility(VT100);
2149 {
2150 int i;
887035a5 2151 for (i = 0; i < term->esc_nargs; i++)
2152 toggle_mode(term, term->esc_args[i],
2153 term->esc_query, TRUE);
32874aea 2154 }
2155 break;
b44b307a 2156 case 'i':
2157 case ANSI_QUE('i'):
2158 compatibility(VT100);
2159 {
887035a5 2160 if (term->esc_nargs != 1) break;
64734920 2161 if (term->esc_args[0] == 5 && *term->cfg.printer) {
887035a5 2162 term->printing = TRUE;
2163 term->only_printing = !term->esc_query;
2164 term->print_state = 0;
2165 term_print_setup(term);
2166 } else if (term->esc_args[0] == 4 &&
2167 term->printing) {
2168 term_print_finish(term);
b44b307a 2169 }
2170 }
2171 break;
32874aea 2172 case 'l': /* toggle modes to low */
2173 case ANSI_QUE('l'):
2174 compatibility(VT100);
2175 {
2176 int i;
887035a5 2177 for (i = 0; i < term->esc_nargs; i++)
2178 toggle_mode(term, term->esc_args[i],
2179 term->esc_query, FALSE);
32874aea 2180 }
2181 break;
2182 case 'g': /* clear tabs */
2183 compatibility(VT100);
887035a5 2184 if (term->esc_nargs == 1) {
2185 if (term->esc_args[0] == 0) {
2186 term->tabs[term->curs.x] = FALSE;
2187 } else if (term->esc_args[0] == 3) {
32874aea 2188 int i;
887035a5 2189 for (i = 0; i < term->cols; i++)
2190 term->tabs[i] = FALSE;
32874aea 2191 }
2192 }
2193 break;
2194 case 'r': /* set scroll margins */
2195 compatibility(VT100);
887035a5 2196 if (term->esc_nargs <= 2) {
32874aea 2197 int top, bot;
887035a5 2198 top = def(term->esc_args[0], 1) - 1;
2199 bot = (term->esc_nargs <= 1
2200 || term->esc_args[1] == 0 ?
2201 term->rows :
2202 def(term->esc_args[1], term->rows)) - 1;
2203 if (bot >= term->rows)
2204 bot = term->rows - 1;
32874aea 2205 /* VTTEST Bug 9 - if region is less than 2 lines
2206 * don't change region.
2207 */
2208 if (bot - top > 0) {
887035a5 2209 term->marg_t = top;
2210 term->marg_b = bot;
2211 term->curs.x = 0;
32874aea 2212 /*
2213 * I used to think the cursor should be
2214 * placed at the top of the newly marginned
2215 * area. Apparently not: VMS TPU falls over
2216 * if so.
2217 *
887035a5 2218 * Well actually it should for
2219 * Origin mode - RDB
32874aea 2220 */
887035a5 2221 term->curs.y = (term->dec_om ?
2222 term->marg_t : 0);
32874aea 2223 fix_cpos;
887035a5 2224 term->seen_disp_event = TRUE;
32874aea 2225 }
2226 }
2227 break;
2228 case 'm': /* set graphics rendition */
2229 {
2230 /*
887035a5 2231 * A VT100 without the AVO only had one
2232 * attribute, either underline or
2233 * reverse video depending on the
2234 * cursor type, this was selected by
2235 * CSI 7m.
32874aea 2236 *
2237 * case 2:
887035a5 2238 * This is sometimes DIM, eg on the
2239 * GIGI and Linux
32874aea 2240 * case 8:
4eeb7d09 2241 * This is sometimes INVIS various ANSI.
32874aea 2242 * case 21:
2243 * This like 22 disables BOLD, DIM and INVIS
2244 *
887035a5 2245 * The ANSI colours appear on any
2246 * terminal that has colour (obviously)
2247 * but the interaction between sgr0 and
2248 * the colours varies but is usually
2249 * related to the background colour
2250 * erase item. The interaction between
2251 * colour attributes and the mono ones
2252 * is also very implementation
2253 * dependent.
32874aea 2254 *
887035a5 2255 * The 39 and 49 attributes are likely
2256 * to be unimplemented.
32874aea 2257 */
2258 int i;
887035a5 2259 for (i = 0; i < term->esc_nargs; i++) {
2260 switch (def(term->esc_args[i], 0)) {
32874aea 2261 case 0: /* restore defaults */
887035a5 2262 term->curr_attr = ATTR_DEFAULT;
32874aea 2263 break;
2264 case 1: /* enable bold */
2265 compatibility(VT100AVO);
887035a5 2266 term->curr_attr |= ATTR_BOLD;
32874aea 2267 break;
2268 case 21: /* (enable double underline) */
2269 compatibility(OTHER);
2270 case 4: /* enable underline */
2271 compatibility(VT100AVO);
887035a5 2272 term->curr_attr |= ATTR_UNDER;
32874aea 2273 break;
2274 case 5: /* enable blink */
2275 compatibility(VT100AVO);
887035a5 2276 term->curr_attr |= ATTR_BLINK;
32874aea 2277 break;
2278 case 7: /* enable reverse video */
887035a5 2279 term->curr_attr |= ATTR_REVERSE;
32874aea 2280 break;
d3cb5465 2281 case 10: /* SCO acs off */
2282 compatibility(SCOANSI);
64734920 2283 if (term->cfg.no_remote_charset) break;
887035a5 2284 term->sco_acs = 0; break;
d3cb5465 2285 case 11: /* SCO acs on */
2286 compatibility(SCOANSI);
64734920 2287 if (term->cfg.no_remote_charset) break;
887035a5 2288 term->sco_acs = 1; break;
5dc6132d 2289 case 12: /* SCO acs on, |0x80 */
d3cb5465 2290 compatibility(SCOANSI);
64734920 2291 if (term->cfg.no_remote_charset) break;
887035a5 2292 term->sco_acs = 2; break;
32874aea 2293 case 22: /* disable bold */
2294 compatibility2(OTHER, VT220);
887035a5 2295 term->curr_attr &= ~ATTR_BOLD;
32874aea 2296 break;
2297 case 24: /* disable underline */
2298 compatibility2(OTHER, VT220);
887035a5 2299 term->curr_attr &= ~ATTR_UNDER;
32874aea 2300 break;
2301 case 25: /* disable blink */
2302 compatibility2(OTHER, VT220);
887035a5 2303 term->curr_attr &= ~ATTR_BLINK;
32874aea 2304 break;
2305 case 27: /* disable reverse video */
2306 compatibility2(OTHER, VT220);
887035a5 2307 term->curr_attr &= ~ATTR_REVERSE;
32874aea 2308 break;
2309 case 30:
2310 case 31:
2311 case 32:
2312 case 33:
2313 case 34:
2314 case 35:
2315 case 36:
2316 case 37:
2317 /* foreground */
887035a5 2318 term->curr_attr &= ~ATTR_FGMASK;
2319 term->curr_attr |=
2320 (term->esc_args[i] - 30)<<ATTR_FGSHIFT;
32874aea 2321 break;
37ca32ed 2322 case 90:
2323 case 91:
2324 case 92:
2325 case 93:
2326 case 94:
2327 case 95:
2328 case 96:
2329 case 97:
2330 /* xterm-style bright foreground */
2331 term->curr_attr &= ~ATTR_FGMASK;
2332 term->curr_attr |=
2333 ((term->esc_args[i] - 90 + 16)
2334 << ATTR_FGSHIFT);
2335 break;
32874aea 2336 case 39: /* default-foreground */
887035a5 2337 term->curr_attr &= ~ATTR_FGMASK;
2338 term->curr_attr |= ATTR_DEFFG;
32874aea 2339 break;
2340 case 40:
2341 case 41:
2342 case 42:
2343 case 43:
2344 case 44:
2345 case 45:
2346 case 46:
2347 case 47:
2348 /* background */
887035a5 2349 term->curr_attr &= ~ATTR_BGMASK;
2350 term->curr_attr |=
2351 (term->esc_args[i] - 40)<<ATTR_BGSHIFT;
32874aea 2352 break;
37ca32ed 2353 case 100:
2354 case 101:
2355 case 102:
2356 case 103:
2357 case 104:
2358 case 105:
2359 case 106:
2360 case 107:
2361 /* xterm-style bright background */
2362 term->curr_attr &= ~ATTR_BGMASK;
2363 term->curr_attr |=
2364 ((term->esc_args[i] - 100 + 16)
2365 << ATTR_BGSHIFT);
2366 break;
32874aea 2367 case 49: /* default-background */
887035a5 2368 term->curr_attr &= ~ATTR_BGMASK;
2369 term->curr_attr |= ATTR_DEFBG;
32874aea 2370 break;
2371 }
2372 }
887035a5 2373 if (term->use_bce)
2374 term->erase_char = (' ' | ATTR_ASCII |
2375 (term->curr_attr &
2376 (ATTR_FGMASK |
2377 ATTR_BGMASK)));
32874aea 2378 }
2379 break;
2380 case 's': /* save cursor */
887035a5 2381 save_cursor(term, TRUE);
32874aea 2382 break;
2383 case 'u': /* restore cursor */
887035a5 2384 save_cursor(term, FALSE);
2385 term->seen_disp_event = TRUE;
32874aea 2386 break;
2387 case 't': /* set page size - ie window height */
374330e2 2388 /*
32874aea 2389 * VT340/VT420 sequence DECSLPP, DEC only allows values
2390 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2391 * illegal values (eg first arg 1..9) for window changing
2392 * and reports.
2393 */
887035a5 2394 if (term->esc_nargs <= 1
2395 && (term->esc_args[0] < 1 ||
2396 term->esc_args[0] >= 24)) {
68f9b3d9 2397 compatibility(VT340TEXT);
64734920 2398 if (!term->cfg.no_remote_resize)
a8327734 2399 request_resize(term->frontend, term->cols,
887035a5 2400 def(term->esc_args[0], 24));
2401 deselect(term);
2402 } else if (term->esc_nargs >= 1 &&
2403 term->esc_args[0] >= 1 &&
2404 term->esc_args[0] < 24) {
68f9b3d9 2405 compatibility(OTHER);
2406
887035a5 2407 switch (term->esc_args[0]) {
68f9b3d9 2408 int x, y, len;
2409 char buf[80], *p;
2410 case 1:
a8327734 2411 set_iconic(term->frontend, FALSE);
68f9b3d9 2412 break;
2413 case 2:
a8327734 2414 set_iconic(term->frontend, TRUE);
68f9b3d9 2415 break;
2416 case 3:
887035a5 2417 if (term->esc_nargs >= 3) {
64734920 2418 if (!term->cfg.no_remote_resize)
a8327734 2419 move_window(term->frontend,
2420 def(term->esc_args[1], 0),
887035a5 2421 def(term->esc_args[2], 0));
68f9b3d9 2422 }
2423 break;
2424 case 4:
2425 /* We should resize the window to a given
2426 * size in pixels here, but currently our
2427 * resizing code isn't healthy enough to
2428 * manage it. */
2429 break;
2430 case 5:
a8327734 2431 /* move to top */
2432 set_zorder(term->frontend, TRUE);
68f9b3d9 2433 break;
2434 case 6:
a8327734 2435 /* move to bottom */
2436 set_zorder(term->frontend, FALSE);
68f9b3d9 2437 break;
2438 case 7:
a8327734 2439 refresh_window(term->frontend);
68f9b3d9 2440 break;
2441 case 8:
887035a5 2442 if (term->esc_nargs >= 3) {
64734920 2443 if (!term->cfg.no_remote_resize)
a8327734 2444 request_resize(term->frontend,
64734920 2445 def(term->esc_args[2], term->cfg.width),
2446 def(term->esc_args[1], term->cfg.height));
68f9b3d9 2447 }
2448 break;
2449 case 9:
887035a5 2450 if (term->esc_nargs >= 2)
a8327734 2451 set_zoomed(term->frontend,
2452 term->esc_args[1] ?
887035a5 2453 TRUE : FALSE);
68f9b3d9 2454 break;
2455 case 11:
b9d7bcad 2456 if (term->ldisc)
2457 ldisc_send(term->ldisc,
a8327734 2458 is_iconic(term->frontend) ?
2459 "\033[1t" : "\033[2t", 4, 0);
68f9b3d9 2460 break;
2461 case 13:
b9d7bcad 2462 if (term->ldisc) {
a8327734 2463 get_window_pos(term->frontend, &x, &y);
b9d7bcad 2464 len = sprintf(buf, "\033[3;%d;%dt", x, y);
2465 ldisc_send(term->ldisc, buf, len, 0);
2466 }
68f9b3d9 2467 break;
2468 case 14:
b9d7bcad 2469 if (term->ldisc) {
a8327734 2470 get_window_pixels(term->frontend, &x, &y);
b9d7bcad 2471 len = sprintf(buf, "\033[4;%d;%dt", x, y);
2472 ldisc_send(term->ldisc, buf, len, 0);
2473 }
68f9b3d9 2474 break;
2475 case 18:
b9d7bcad 2476 if (term->ldisc) {
2477 len = sprintf(buf, "\033[8;%d;%dt",
2478 term->rows, term->cols);
2479 ldisc_send(term->ldisc, buf, len, 0);
2480 }
68f9b3d9 2481 break;
2482 case 19:
2483 /*
2484 * Hmmm. Strictly speaking we
2485 * should return `the size of the
2486 * screen in characters', but
2487 * that's not easy: (a) window
2488 * furniture being what it is it's
2489 * hard to compute, and (b) in
2490 * resize-font mode maximising the
2491 * window wouldn't change the
2492 * number of characters. *shrug*. I
2493 * think we'll ignore it for the
2494 * moment and see if anyone
2495 * complains, and then ask them
2496 * what they would like it to do.
2497 */
2498 break;
2499 case 20:
b9d7bcad 2500 if (term->ldisc) {
a8327734 2501 p = get_window_title(term->frontend, TRUE);
b9d7bcad 2502 len = strlen(p);
2503 ldisc_send(term->ldisc, "\033]L", 3, 0);
2504 ldisc_send(term->ldisc, p, len, 0);
2505 ldisc_send(term->ldisc, "\033\\", 2, 0);
2506 }
68f9b3d9 2507 break;
2508 case 21:
b9d7bcad 2509 if (term->ldisc) {
a8327734 2510 p = get_window_title(term->frontend,FALSE);
b9d7bcad 2511 len = strlen(p);
2512 ldisc_send(term->ldisc, "\033]l", 3, 0);
2513 ldisc_send(term->ldisc, p, len, 0);
2514 ldisc_send(term->ldisc, "\033\\", 2, 0);
2515 }
68f9b3d9 2516 break;
2517 }
32874aea 2518 }
2519 break;
1a837633 2520 case 'S':
2521 compatibility(SCOANSI);
887035a5 2522 scroll(term, term->marg_t, term->marg_b,
2523 def(term->esc_args[0], 1), TRUE);
1a837633 2524 fix_cpos;
887035a5 2525 term->wrapnext = FALSE;
2526 term->seen_disp_event = TRUE;
1a837633 2527 break;
2528 case 'T':
2529 compatibility(SCOANSI);
887035a5 2530 scroll(term, term->marg_t, term->marg_b,
2531 -def(term->esc_args[0], 1), TRUE);
1a837633 2532 fix_cpos;
887035a5 2533 term->wrapnext = FALSE;
2534 term->seen_disp_event = TRUE;
1a837633 2535 break;
32874aea 2536 case ANSI('|', '*'):
2537 /* VT420 sequence DECSNLS
2538 * Set number of lines on screen
2539 * VT420 uses VGA like hardware and can support any size in
2540 * reasonable range (24..49 AIUI) with no default specified.
2541 */
2542 compatibility(VT420);
887035a5 2543 if (term->esc_nargs == 1 && term->esc_args[0] > 0) {
64734920 2544 if (!term->cfg.no_remote_resize)
a8327734 2545 request_resize(term->frontend, term->cols,
887035a5 2546 def(term->esc_args[0],
64734920 2547 term->cfg.height));
887035a5 2548 deselect(term);
32874aea 2549 }
2550 break;
2551 case ANSI('|', '$'):
2552 /* VT340/VT420 sequence DECSCPP
2553 * Set number of columns per page
2554 * Docs imply range is only 80 or 132, but I'll allow any.
2555 */
2556 compatibility(VT340TEXT);
887035a5 2557 if (term->esc_nargs <= 1) {
64734920 2558 if (!term->cfg.no_remote_resize)
a8327734 2559 request_resize(term->frontend,
2560 def(term->esc_args[0],
64734920 2561 term->cfg.width), term->rows);
887035a5 2562 deselect(term);
32874aea 2563 }
2564 break;
2565 case 'X': /* write N spaces w/o moving cursor */
2566 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2567 compatibility(ANSIMIN);
2568 {
887035a5 2569 int n = def(term->esc_args[0], 1);
32874aea 2570 pos cursplus;
887035a5 2571 unsigned long *p = term->cpos;
2572 if (n > term->cols - term->curs.x)
2573 n = term->cols - term->curs.x;
2574 cursplus = term->curs;
32874aea 2575 cursplus.x += n;
3c7366f8 2576 check_boundary(term, term->curs.x, term->curs.y);
2577 check_boundary(term, term->curs.x+n, term->curs.y);
887035a5 2578 check_selection(term, term->curs, cursplus);
32874aea 2579 while (n--)
887035a5 2580 *p++ = term->erase_char;
2581 term->seen_disp_event = TRUE;
32874aea 2582 }
2583 break;
2584 case 'x': /* report terminal characteristics */
2585 compatibility(VT100);
b9d7bcad 2586 if (term->ldisc) {
32874aea 2587 char buf[32];
887035a5 2588 int i = def(term->esc_args[0], 0);
32874aea 2589 if (i == 0 || i == 1) {
2590 strcpy(buf, "\033[2;1;1;112;112;1;0x");
2591 buf[2] += i;
b9d7bcad 2592 ldisc_send(term->ldisc, buf, 20, 0);
32874aea 2593 }
2594 }
2595 break;
979f6987 2596 case 'Z': /* BackTab for xterm */
2597 compatibility(OTHER);
2598 {
887035a5 2599 int i = def(term->esc_args[0], 1);
2600 pos old_curs = term->curs;
979f6987 2601
887035a5 2602 for(;i>0 && term->curs.x>0; i--) {
979f6987 2603 do {
887035a5 2604 term->curs.x--;
2605 } while (term->curs.x >0 &&
2606 !term->tabs[term->curs.x]);
979f6987 2607 }
2608 fix_cpos;
887035a5 2609 check_selection(term, old_curs, term->curs);
979f6987 2610 }
2611 break;
32874aea 2612 case ANSI('L', '='):
2613 compatibility(OTHER);
887035a5 2614 term->use_bce = (term->esc_args[0] <= 0);
2615 term->erase_char = ERASE_CHAR;
2616 if (term->use_bce)
2617 term->erase_char = (' ' | ATTR_ASCII |
2618 (term->curr_attr &
2619 (ATTR_FGMASK | ATTR_BGMASK)));
32874aea 2620 break;
2621 case ANSI('E', '='):
2622 compatibility(OTHER);
887035a5 2623 term->blink_is_real = (term->esc_args[0] >= 1);
32874aea 2624 break;
2625 case ANSI('p', '"'):
887035a5 2626 /*
2627 * Allow the host to make this emulator a
2628 * 'perfect' VT102. This first appeared in
2629 * the VT220, but we do need to get back to
2630 * PuTTY mode so I won't check it.
e14a5a13 2631 *
4eeb7d09 2632 * The arg in 40..42,50 are a PuTTY extension.
32874aea 2633 * The 2nd arg, 8bit vs 7bit is not checked.
2634 *
887035a5 2635 * Setting VT102 mode should also change
2636 * the Fkeys to generate PF* codes as a
2637 * real VT102 has no Fkeys. The VT220 does
2638 * this, F11..F13 become ESC,BS,LF other
2639 * Fkeys send nothing.
32874aea 2640 *
2641 * Note ESC c will NOT change this!
374330e2 2642 */
32874aea 2643
887035a5 2644 switch (term->esc_args[0]) {
32874aea 2645 case 61:
887035a5 2646 term->compatibility_level &= ~TM_VTXXX;
2647 term->compatibility_level |= TM_VT102;
374330e2 2648 break;
32874aea 2649 case 62:
887035a5 2650 term->compatibility_level &= ~TM_VTXXX;
2651 term->compatibility_level |= TM_VT220;
32874aea 2652 break;
2653
2654 default:
887035a5 2655 if (term->esc_args[0] > 60 &&
2656 term->esc_args[0] < 70)
2657 term->compatibility_level |= TM_VTXXX;
32874aea 2658 break;
2659
2660 case 40:
887035a5 2661 term->compatibility_level &= TM_VTXXX;
374330e2 2662 break;
32874aea 2663 case 41:
887035a5 2664 term->compatibility_level = TM_PUTTY;
374330e2 2665 break;
32874aea 2666 case 42:
887035a5 2667 term->compatibility_level = TM_SCOANSI;
374330e2 2668 break;
32874aea 2669
2670 case ARG_DEFAULT:
887035a5 2671 term->compatibility_level = TM_PUTTY;
32874aea 2672 break;
2673 case 50:
2674 break;
2675 }
2676
2677 /* Change the response to CSI c */
887035a5 2678 if (term->esc_args[0] == 50) {
32874aea 2679 int i;
2680 char lbuf[64];
887035a5 2681 strcpy(term->id_string, "\033[?");
2682 for (i = 1; i < term->esc_nargs; i++) {
32874aea 2683 if (i != 1)
887035a5 2684 strcat(term->id_string, ";");
2685 sprintf(lbuf, "%d", term->esc_args[i]);
2686 strcat(term->id_string, lbuf);
32874aea 2687 }
887035a5 2688 strcat(term->id_string, "c");
32874aea 2689 }
2690#if 0
2691 /* Is this a good idea ?
2692 * Well we should do a soft reset at this point ...
2693 */
2694 if (!has_compat(VT420) && has_compat(VT100)) {
64734920 2695 if (!term->cfg.no_remote_resize) {
887035a5 2696 if (term->reset_132)
0d2086c5 2697 request_resize(132, 24);
2698 else
2699 request_resize(80, 24);
2700 }
374330e2 2701 }
32874aea 2702#endif
2703 break;
374330e2 2704 }
374330e2 2705 break;
32874aea 2706 case SEEN_OSC:
887035a5 2707 term->osc_w = FALSE;
32874aea 2708 switch (c) {
2709 case 'P': /* Linux palette sequence */
887035a5 2710 term->termstate = SEEN_OSC_P;
2711 term->osc_strlen = 0;
32874aea 2712 break;
2713 case 'R': /* Linux palette reset */
a8327734 2714 palette_reset(term->frontend);
887035a5 2715 term_invalidate(term);
2716 term->termstate = TOPLEVEL;
32874aea 2717 break;
2718 case 'W': /* word-set */
887035a5 2719 term->termstate = SEEN_OSC_W;
2720 term->osc_w = TRUE;
32874aea 2721 break;
2722 case '0':
2723 case '1':
2724 case '2':
2725 case '3':
2726 case '4':
2727 case '5':
2728 case '6':
2729 case '7':
2730 case '8':
2731 case '9':
887035a5 2732 term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
32874aea 2733 break;
2734 case 'L':
2735 /*
2736 * Grotty hack to support xterm and DECterm title
2737 * sequences concurrently.
2738 */
887035a5 2739 if (term->esc_args[0] == 2) {
2740 term->esc_args[0] = 1;
32874aea 2741 break;
2742 }
2743 /* else fall through */
2744 default:
887035a5 2745 term->termstate = OSC_STRING;
2746 term->osc_strlen = 0;
e14a5a13 2747 }
2748 break;
32874aea 2749 case OSC_STRING:
2750 /*
2751 * This OSC stuff is EVIL. It takes just one character to get into
2752 * sysline mode and it's not initially obvious how to get out.
2753 * So I've added CR and LF as string aborts.
2754 * This shouldn't effect compatibility as I believe embedded
2755 * control characters are supposed to be interpreted (maybe?)
2756 * and they don't display anything useful anyway.
2757 *
2758 * -- RDB
e14a5a13 2759 */
92e23ad9 2760 if (c == '\012' || c == '\015') {
887035a5 2761 term->termstate = TOPLEVEL;
32874aea 2762 } else if (c == 0234 || c == '\007') {
2763 /*
2764 * These characters terminate the string; ST and BEL
2765 * terminate the sequence and trigger instant
2766 * processing of it, whereas ESC goes back to SEEN_ESC
2767 * mode unless it is followed by \, in which case it is
2768 * synonymous with ST in the first place.
2769 */
887035a5 2770 do_osc(term);
2771 term->termstate = TOPLEVEL;
32874aea 2772 } else if (c == '\033')
887035a5 2773 term->termstate = OSC_MAYBE_ST;
2774 else if (term->osc_strlen < OSC_STR_MAX)
2775 term->osc_string[term->osc_strlen++] = c;
374330e2 2776 break;
32874aea 2777 case SEEN_OSC_P:
374330e2 2778 {
887035a5 2779 int max = (term->osc_strlen == 0 ? 21 : 16);
32874aea 2780 int val;
2781 if (c >= '0' && c <= '9')
2782 val = c - '0';
2783 else if (c >= 'A' && c <= 'A' + max - 10)
2784 val = c - 'A' + 10;
2785 else if (c >= 'a' && c <= 'a' + max - 10)
2786 val = c - 'a' + 10;
2d466ffd 2787 else {
887035a5 2788 term->termstate = TOPLEVEL;
2d466ffd 2789 break;
2790 }
887035a5 2791 term->osc_string[term->osc_strlen++] = val;
2792 if (term->osc_strlen >= 7) {
a8327734 2793 palette_set(term->frontend, term->osc_string[0],
887035a5 2794 term->osc_string[1] * 16 + term->osc_string[2],
2795 term->osc_string[3] * 16 + term->osc_string[4],
2796 term->osc_string[5] * 16 + term->osc_string[6]);
2797 term_invalidate(term);
2798 term->termstate = TOPLEVEL;
374330e2 2799 }
2800 }
2801 break;
32874aea 2802 case SEEN_OSC_W:
2803 switch (c) {
2804 case '0':
2805 case '1':
2806 case '2':
2807 case '3':
2808 case '4':
2809 case '5':
2810 case '6':
2811 case '7':
2812 case '8':
2813 case '9':
887035a5 2814 term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
32874aea 2815 break;
2816 default:
887035a5 2817 term->termstate = OSC_STRING;
2818 term->osc_strlen = 0;
ec55b220 2819 }
32874aea 2820 break;
32874aea 2821 case VT52_ESC:
887035a5 2822 term->termstate = TOPLEVEL;
2823 term->seen_disp_event = TRUE;
c9def1b8 2824 switch (c) {
32874aea 2825 case 'A':
887035a5 2826 move(term, term->curs.x, term->curs.y - 1, 1);
32874aea 2827 break;
2828 case 'B':
887035a5 2829 move(term, term->curs.x, term->curs.y + 1, 1);
32874aea 2830 break;
2831 case 'C':
887035a5 2832 move(term, term->curs.x + 1, term->curs.y, 1);
32874aea 2833 break;
2834 case 'D':
887035a5 2835 move(term, term->curs.x - 1, term->curs.y, 1);
32874aea 2836 break;
4eeb7d09 2837 /*
2838 * From the VT100 Manual
2839 * NOTE: The special graphics characters in the VT100
2840 * are different from those in the VT52
2841 *
2842 * From VT102 manual:
2843 * 137 _ Blank - Same
2844 * 140 ` Reserved - Humm.
2845 * 141 a Solid rectangle - Similar
2846 * 142 b 1/ - Top half of fraction for the
2847 * 143 c 3/ - subscript numbers below.
2848 * 144 d 5/
2849 * 145 e 7/
2850 * 146 f Degrees - Same
2851 * 147 g Plus or minus - Same
2852 * 150 h Right arrow
2853 * 151 i Ellipsis (dots)
2854 * 152 j Divide by
2855 * 153 k Down arrow
2856 * 154 l Bar at scan 0
2857 * 155 m Bar at scan 1
2858 * 156 n Bar at scan 2
2859 * 157 o Bar at scan 3 - Similar
2860 * 160 p Bar at scan 4 - Similar
2861 * 161 q Bar at scan 5 - Similar
2862 * 162 r Bar at scan 6 - Same
2863 * 163 s Bar at scan 7 - Similar
2864 * 164 t Subscript 0
2865 * 165 u Subscript 1
2866 * 166 v Subscript 2
2867 * 167 w Subscript 3
2868 * 170 x Subscript 4
2869 * 171 y Subscript 5
2870 * 172 z Subscript 6
2871 * 173 { Subscript 7
2872 * 174 | Subscript 8
2873 * 175 } Subscript 9
2874 * 176 ~ Paragraph
2875 *
2876 */
32874aea 2877 case 'F':
887035a5 2878 term->cset_attr[term->cset = 0] = ATTR_LINEDRW;
32874aea 2879 break;
2880 case 'G':
887035a5 2881 term->cset_attr[term->cset = 0] = ATTR_ASCII;
32874aea 2882 break;
2883 case 'H':
887035a5 2884 move(term, 0, 0, 0);
32874aea 2885 break;
2886 case 'I':
887035a5 2887 if (term->curs.y == 0)
2888 scroll(term, 0, term->rows - 1, -1, TRUE);
2889 else if (term->curs.y > 0)
2890 term->curs.y--;
32874aea 2891 fix_cpos;
887035a5 2892 term->wrapnext = FALSE;
32874aea 2893 break;
2894 case 'J':
887035a5 2895 erase_lots(term, FALSE, FALSE, TRUE);
2896 term->disptop = 0;
c9def1b8 2897 break;
32874aea 2898 case 'K':
887035a5 2899 erase_lots(term, TRUE, FALSE, TRUE);
32874aea 2900 break;
4eeb7d09 2901#if 0
32874aea 2902 case 'V':
2903 /* XXX Print cursor line */
2904 break;
2905 case 'W':
2906 /* XXX Start controller mode */
2907 break;
2908 case 'X':
2909 /* XXX Stop controller mode */
2910 break;
4eeb7d09 2911#endif
32874aea 2912 case 'Y':
887035a5 2913 term->termstate = VT52_Y1;
32874aea 2914 break;
2915 case 'Z':
b9d7bcad 2916 if (term->ldisc)
2917 ldisc_send(term->ldisc, "\033/Z", 3, 0);
32874aea 2918 break;
2919 case '=':
887035a5 2920 term->app_keypad_keys = TRUE;
32874aea 2921 break;
2922 case '>':
887035a5 2923 term->app_keypad_keys = FALSE;
32874aea 2924 break;
2925 case '<':
2926 /* XXX This should switch to VT100 mode not current or default
2927 * VT mode. But this will only have effect in a VT220+
2928 * emulation.
2929 */
887035a5 2930 term->vt52_mode = FALSE;
64734920 2931 term->blink_is_real = term->cfg.blinktext;
32874aea 2932 break;
4eeb7d09 2933#if 0
32874aea 2934 case '^':
2935 /* XXX Enter auto print mode */
2936 break;
2937 case '_':
2938 /* XXX Exit auto print mode */
2939 break;
2940 case ']':
2941 /* XXX Print screen */
2942 break;
4eeb7d09 2943#endif
2944
2945#ifdef VT52_PLUS
2946 case 'E':
2947 /* compatibility(ATARI) */
887035a5 2948 move(term, 0, 0, 0);
2949 erase_lots(term, FALSE, FALSE, TRUE);
2950 term->disptop = 0;
4eeb7d09 2951 break;
2952 case 'L':
2953 /* compatibility(ATARI) */
887035a5 2954 if (term->curs.y <= term->marg_b)
2955 scroll(term, term->curs.y, term->marg_b, -1, FALSE);
4eeb7d09 2956 break;
2957 case 'M':
2958 /* compatibility(ATARI) */
887035a5 2959 if (term->curs.y <= term->marg_b)
2960 scroll(term, term->curs.y, term->marg_b, 1, TRUE);
4eeb7d09 2961 break;
2962 case 'b':
2963 /* compatibility(ATARI) */
887035a5 2964 term->termstate = VT52_FG;
4eeb7d09 2965 break;
2966 case 'c':
2967 /* compatibility(ATARI) */
887035a5 2968 term->termstate = VT52_BG;
4eeb7d09 2969 break;
2970 case 'd':
2971 /* compatibility(ATARI) */
887035a5 2972 erase_lots(term, FALSE, TRUE, FALSE);
2973 term->disptop = 0;
4eeb7d09 2974 break;
2975 case 'e':
2976 /* compatibility(ATARI) */
887035a5 2977 term->cursor_on = TRUE;
4eeb7d09 2978 break;
2979 case 'f':
2980 /* compatibility(ATARI) */
887035a5 2981 term->cursor_on = FALSE;
4eeb7d09 2982 break;
2983 /* case 'j': Save cursor position - broken on ST */
2984 /* case 'k': Restore cursor position */
2985 case 'l':
2986 /* compatibility(ATARI) */
887035a5 2987 erase_lots(term, TRUE, TRUE, TRUE);
2988 term->curs.x = 0;
2989 term->wrapnext = FALSE;
4eeb7d09 2990 fix_cpos;
2991 break;
2992 case 'o':
2993 /* compatibility(ATARI) */
887035a5 2994 erase_lots(term, TRUE, TRUE, FALSE);
4eeb7d09 2995 break;
2996 case 'p':
2997 /* compatibility(ATARI) */
887035a5 2998 term->curr_attr |= ATTR_REVERSE;
4eeb7d09 2999 break;
3000 case 'q':
3001 /* compatibility(ATARI) */
887035a5 3002 term->curr_attr &= ~ATTR_REVERSE;
4eeb7d09 3003 break;
3004 case 'v': /* wrap Autowrap on - Wyse style */
3005 /* compatibility(ATARI) */
887035a5 3006 term->wrap = 1;
4eeb7d09 3007 break;
3008 case 'w': /* Autowrap off */
3009 /* compatibility(ATARI) */
887035a5 3010 term->wrap = 0;
4eeb7d09 3011 break;
3012
3013 case 'R':
3014 /* compatibility(OTHER) */
887035a5 3015 term->vt52_bold = FALSE;
3016 term->curr_attr = ATTR_DEFAULT;
3017 if (term->use_bce)
3018 term->erase_char = (' ' | ATTR_ASCII |
3019 (term->curr_attr &
3020 (ATTR_FGMASK | ATTR_BGMASK)));
4eeb7d09 3021 break;
3022 case 'S':
3023 /* compatibility(VI50) */
887035a5 3024 term->curr_attr |= ATTR_UNDER;
4eeb7d09 3025 break;
3026 case 'W':
3027 /* compatibility(VI50) */
887035a5 3028 term->curr_attr &= ~ATTR_UNDER;
4eeb7d09 3029 break;
3030 case 'U':
3031 /* compatibility(VI50) */
887035a5 3032 term->vt52_bold = TRUE;
3033 term->curr_attr |= ATTR_BOLD;
4eeb7d09 3034 break;
3035 case 'T':
3036 /* compatibility(VI50) */
887035a5 3037 term->vt52_bold = FALSE;
3038 term->curr_attr &= ~ATTR_BOLD;
4eeb7d09 3039 break;
3040#endif
c9def1b8 3041 }
e14a5a13 3042 break;
32874aea 3043 case VT52_Y1:
887035a5 3044 term->termstate = VT52_Y2;
3045 move(term, term->curs.x, c - ' ', 0);
e14a5a13 3046 break;
32874aea 3047 case VT52_Y2:
887035a5 3048 term->termstate = TOPLEVEL;
3049 move(term, c - ' ', term->curs.y, 0);
e14a5a13 3050 break;
4eeb7d09 3051
3052#ifdef VT52_PLUS
3053 case VT52_FG:
887035a5 3054 term->termstate = TOPLEVEL;
3055 term->curr_attr &= ~ATTR_FGMASK;
3056 term->curr_attr &= ~ATTR_BOLD;
3057 term->curr_attr |= (c & 0x7) << ATTR_FGSHIFT;
3058 if ((c & 0x8) || term->vt52_bold)
3059 term->curr_attr |= ATTR_BOLD;
3060
3061 if (term->use_bce)
3062 term->erase_char = (' ' | ATTR_ASCII |
3063 (term->curr_attr &
3064 (ATTR_FGMASK | ATTR_BGMASK)));
4eeb7d09 3065 break;
3066 case VT52_BG:
887035a5 3067 term->termstate = TOPLEVEL;
3068 term->curr_attr &= ~ATTR_BGMASK;
3069 term->curr_attr &= ~ATTR_BLINK;
3070 term->curr_attr |= (c & 0x7) << ATTR_BGSHIFT;
4eeb7d09 3071
3072 /* Note: bold background */
3073 if (c & 0x8)
887035a5 3074 term->curr_attr |= ATTR_BLINK;
4eeb7d09 3075
887035a5 3076 if (term->use_bce)
3077 term->erase_char = (' ' | ATTR_ASCII |
3078 (term->curr_attr &
3079 (ATTR_FGMASK | ATTR_BGMASK)));
4eeb7d09 3080 break;
3081#endif
2d466ffd 3082 default: break; /* placate gcc warning about enum use */
e14a5a13 3083 }
887035a5 3084 if (term->selstate != NO_SELECTION) {
3085 pos cursplus = term->curs;
4facdf84 3086 incpos(cursplus);
887035a5 3087 check_selection(term, term->curs, cursplus);
4facdf84 3088 }
374330e2 3089 }
b44b307a 3090
887035a5 3091 term_print_flush(term);
374330e2 3092}
3093
4eeb7d09 3094#if 0
374330e2 3095/*
3096 * Compare two lines to determine whether they are sufficiently
3097 * alike to scroll-optimise one to the other. Return the degree of
3098 * similarity.
3099 */
887035a5 3100static int linecmp(Terminal *term, unsigned long *a, unsigned long *b)
32874aea 3101{
374330e2 3102 int i, n;
3103
887035a5 3104 for (i = n = 0; i < term->cols; i++)
374330e2 3105 n += (*a++ == *b++);
3106 return n;
3107}
4eeb7d09 3108#endif
374330e2 3109
3110/*
3111 * Given a context, update the window. Out of paranoia, we don't
3112 * allow WM_PAINT responses to do scrolling optimisations.
3113 */
887035a5 3114static void do_paint(Terminal *term, Context ctx, int may_optimise)
32874aea 3115{
3c7366f8 3116 int i, j, our_curs_y, our_curs_x;
4eeb7d09 3117 unsigned long rv, cursor;
4facdf84 3118 pos scrpos;
374330e2 3119 char ch[1024];
4eeb7d09 3120 long cursor_background = ERASE_CHAR;
286c6b86 3121 unsigned long ticks;
341eb978 3122#ifdef OPTIMISE_SCROLL
3123 struct scrollregion *sr;
3124#endif /* OPTIMISE_SCROLL */
374330e2 3125
156686ef 3126 /*
3127 * Check the visual bell state.
3128 */
887035a5 3129 if (term->in_vbell) {
f7f27309 3130 ticks = GETTICKCOUNT();
887035a5 3131 if (ticks - term->vbell_startpoint >= VBELL_TIMEOUT)
3132 term->in_vbell = FALSE;
286c6b86 3133 }
156686ef 3134
887035a5 3135 rv = (!term->rvideo ^ !term->in_vbell ? ATTR_REVERSE : 0);
4eeb7d09 3136
156686ef 3137 /* Depends on:
3138 * screen array, disptop, scrtop,
3139 * selection, rv,
3140 * cfg.blinkpc, blink_is_real, tblinker,
4eeb7d09 3141 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
156686ef 3142 */
4eeb7d09 3143
3144 /* Has the cursor position or type changed ? */
887035a5 3145 if (term->cursor_on) {
3146 if (term->has_focus) {
64734920 3147 if (term->blinker || !term->cfg.blink_cur)
4eeb7d09 3148 cursor = TATTR_ACTCURS;
32874aea 3149 else
3150 cursor = 0;
3151 } else
4eeb7d09 3152 cursor = TATTR_PASCURS;
887035a5 3153 if (term->wrapnext)
4eeb7d09 3154 cursor |= TATTR_RIGHTCURS;
32874aea 3155 } else
156686ef 3156 cursor = 0;
887035a5 3157 our_curs_y = term->curs.y - term->disptop;
3c7366f8 3158 {
3159 /*
3160 * Adjust the cursor position in the case where it's
3161 * resting on the right-hand half of a CJK wide character.
3162 * xterm's behaviour here, which seems adequate to me, is
3163 * to display the cursor covering the _whole_ character,
3164 * exactly as if it were one space to the left.
3165 */
3166 unsigned long *ldata = lineptr(term->curs.y);
3167 our_curs_x = term->curs.x;
3168 if (our_curs_x > 0 &&
3169 (ldata[our_curs_x] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
3170 our_curs_x--;
3171 }
887035a5 3172
3173 if (term->dispcurs && (term->curstype != cursor ||
3174 term->dispcurs !=
3175 term->disptext + our_curs_y * (term->cols + 1) +
3c7366f8 3176 our_curs_x)) {
887035a5 3177 if (term->dispcurs > term->disptext &&
3c7366f8 3178 (*term->dispcurs & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
887035a5 3179 term->dispcurs[-1] |= ATTR_INVALID;
3180 if ( (term->dispcurs[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
3181 term->dispcurs[1] |= ATTR_INVALID;
3182 *term->dispcurs |= ATTR_INVALID;
3183 term->curstype = 0;
4eeb7d09 3184 }
887035a5 3185 term->dispcurs = NULL;
4eeb7d09 3186
341eb978 3187#ifdef OPTIMISE_SCROLL
3188 /* Do scrolls */
3189 sr = term->scrollhead;
3190 while (sr) {
3191 struct scrollregion *next = sr->next;
3192 do_scroll(ctx, sr->topline, sr->botline, sr->lines);
3193 sfree(sr);
3194 sr = next;
3195 }
3196 term->scrollhead = term->scrolltail = NULL;
3197#endif /* OPTIMISE_SCROLL */
3198
4eeb7d09 3199 /* The normal screen data */
887035a5 3200 for (i = 0; i < term->rows; i++) {
4facdf84 3201 unsigned long *ldata;
3202 int lattr;
6908fed7 3203 int idx, dirty_line, dirty_run, selected;
4eeb7d09 3204 unsigned long attr = 0;
3205 int updated_line = 0;
3206 int start = 0;
3207 int ccount = 0;
3208 int last_run_dirty = 0;
3209
887035a5 3210 scrpos.y = i + term->disptop;
4facdf84 3211 ldata = lineptr(scrpos.y);
887035a5 3212 lattr = (ldata[term->cols] & LATTR_MODE);
4eeb7d09 3213
887035a5 3214 idx = i * (term->cols + 1);
3215 dirty_run = dirty_line = (ldata[term->cols] !=
3216 term->disptext[idx + term->cols]);
3217 term->disptext[idx + term->cols] = ldata[term->cols];
4eeb7d09 3218
887035a5 3219 for (j = 0; j < term->cols; j++, idx++) {
4eeb7d09 3220 unsigned long tattr, tchar;
3221 unsigned long *d = ldata + j;
3222 int break_run;
4facdf84 3223 scrpos.x = j;
32874aea 3224
4eeb7d09 3225 tchar = (*d & (CHAR_MASK | CSET_MASK));
3226 tattr = (*d & (ATTR_MASK ^ CSET_MASK));
3227 switch (tchar & CSET_MASK) {
3228 case ATTR_ASCII:
21d2b241 3229 tchar = term->ucsdata->unitab_line[tchar & 0xFF];
4eeb7d09 3230 break;
3231 case ATTR_LINEDRW:
21d2b241 3232 tchar = term->ucsdata->unitab_xterm[tchar & 0xFF];
4eeb7d09 3233 break;
d3cb5465 3234 case ATTR_SCOACS:
21d2b241 3235 tchar = term->ucsdata->unitab_scoacs[tchar&0xFF];
d3cb5465 3236 break;
4eeb7d09 3237 }
3238 tattr |= (tchar & CSET_MASK);
3239 tchar &= CHAR_MASK;
5a73255e 3240 if ((d[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
3241 tattr |= ATTR_WIDE;
4eeb7d09 3242
3243 /* Video reversing things */
f278d6f8 3244 if (term->selstate == DRAGGING || term->selstate == SELECTED) {
3245 if (term->seltype == LEXICOGRAPHIC)
3246 selected = (posle(term->selstart, scrpos) &&
3247 poslt(scrpos, term->selend));
3248 else
3249 selected = (posPle(term->selstart, scrpos) &&
3250 posPlt(scrpos, term->selend));
3251 } else
3252 selected = FALSE;
4eeb7d09 3253 tattr = (tattr ^ rv
6908fed7 3254 ^ (selected ? ATTR_REVERSE : 0));
4eeb7d09 3255
3256 /* 'Real' blinking ? */
887035a5 3257 if (term->blink_is_real && (tattr & ATTR_BLINK)) {
3258 if (term->has_focus && term->tblinker) {
fc6f0fc2 3259 tchar = term->ucsdata->unitab_line[(unsigned char)' '];
c9def1b8 3260 }
4eeb7d09 3261 tattr &= ~ATTR_BLINK;
c9def1b8 3262 }
374330e2 3263
5a73255e 3264 /*
3265 * Check the font we'll _probably_ be using to see if
3266 * the character is wide when we don't want it to be.
3267 */
887035a5 3268 if ((tchar | tattr) != (term->disptext[idx]& ~ATTR_NARROW)) {
5a73255e 3269 if ((tattr & ATTR_WIDE) == 0 &&
2102eb8a 3270 char_width(ctx, (tchar | tattr) & 0xFFFF) == 2)
5a73255e 3271 tattr |= ATTR_NARROW;
887035a5 3272 } else if (term->disptext[idx]&ATTR_NARROW)
5a73255e 3273 tattr |= ATTR_NARROW;
3274
4eeb7d09 3275 /* Cursor here ? Save the 'background' */
3c7366f8 3276 if (i == our_curs_y && j == our_curs_x) {
4eeb7d09 3277 cursor_background = tattr | tchar;
887035a5 3278 term->dispcurs = term->disptext + idx;
4eeb7d09 3279 }
374330e2 3280
887035a5 3281 if ((term->disptext[idx] ^ tattr) & ATTR_WIDE)
4eeb7d09 3282 dirty_line = TRUE;
3283
2647b103 3284 break_run = (((tattr ^ attr) & term->attr_mask) ||
3285 j - start >= sizeof(ch));
4eeb7d09 3286
3287 /* Special hack for VT100 Linedraw glyphs */
3288 if ((attr & CSET_MASK) == 0x2300 && tchar >= 0xBA
3289 && tchar <= 0xBD) break_run = TRUE;
3290
21d2b241 3291 if (!term->ucsdata->dbcs_screenfont && !dirty_line) {
887035a5 3292 if ((tchar | tattr) == term->disptext[idx])
4eeb7d09 3293 break_run = TRUE;
3294 else if (!dirty_run && ccount == 1)
3295 break_run = TRUE;
374330e2 3296 }
4eeb7d09 3297
3298 if (break_run) {
3299 if ((dirty_run || last_run_dirty) && ccount > 0) {
3300 do_text(ctx, start, i, ch, ccount, attr, lattr);
3301 updated_line = 1;
3302 }
3303 start = j;
3304 ccount = 0;
3305 attr = tattr;
21d2b241 3306 if (term->ucsdata->dbcs_screenfont)
4eeb7d09 3307 last_run_dirty = dirty_run;
3308 dirty_run = dirty_line;
3309 }
3310
887035a5 3311 if ((tchar | tattr) != term->disptext[idx])
4eeb7d09 3312 dirty_run = TRUE;
3313 ch[ccount++] = (char) tchar;
887035a5 3314 term->disptext[idx] = tchar | tattr;
4eeb7d09 3315
3316 /* If it's a wide char step along to the next one. */
3317 if (tattr & ATTR_WIDE) {
887035a5 3318 if (++j < term->cols) {
4eeb7d09 3319 idx++;
3320 d++;
3c7366f8 3321 /*
3322 * By construction above, the cursor should not
3323 * be on the right-hand half of this character.
3324 * Ever.
3325 */
3326 assert(!(i == our_curs_y && j == our_curs_x));
887035a5 3327 if (term->disptext[idx] != *d)
4eeb7d09 3328 dirty_run = TRUE;
887035a5 3329 term->disptext[idx] = *d;
374330e2 3330 }
374330e2 3331 }
4eeb7d09 3332 }
3333 if (dirty_run && ccount > 0) {
3334 do_text(ctx, start, i, ch, ccount, attr, lattr);
3335 updated_line = 1;
3336 }
3337
3338 /* Cursor on this line ? (and changed) */
887035a5 3339 if (i == our_curs_y && (term->curstype != cursor || updated_line)) {
4eeb7d09 3340 ch[0] = (char) (cursor_background & CHAR_MASK);
3341 attr = (cursor_background & ATTR_MASK) | cursor;
3c7366f8 3342 do_cursor(ctx, our_curs_x, i, ch, 1, attr, lattr);
887035a5 3343 term->curstype = cursor;
374330e2 3344 }
3345 }
3346}
3347
3348/*
e14a5a13 3349 * Flick the switch that says if blinking things should be shown or hidden.
3350 */
3351
887035a5 3352void term_blink(Terminal *term, int flg)
32874aea 3353{
e14a5a13 3354 long now, blink_diff;
3355
f7f27309 3356 now = GETTICKCOUNT();
887035a5 3357 blink_diff = now - term->last_tblink;
c9def1b8 3358
1d3989ed 3359 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3360 if (blink_diff < 0 || blink_diff > (TICKSPERSEC * 9 / 20)) {
887035a5 3361 term->last_tblink = now;
3362 term->tblinker = !term->tblinker;
c9def1b8 3363 }
3364
e14a5a13 3365 if (flg) {
887035a5 3366 term->blinker = 1;
3367 term->last_blink = now;
e14a5a13 3368 return;
32874aea 3369 }
e14a5a13 3370
887035a5 3371 blink_diff = now - term->last_blink;
e14a5a13 3372
f7f27309 3373 /* Make sure the cursor blinks no faster than system blink rate */
3374 if (blink_diff >= 0 && blink_diff < (long) CURSORBLINK)
32874aea 3375 return;
3376
887035a5 3377 term->last_blink = now;
3378 term->blinker = !term->blinker;
e14a5a13 3379}
3380
3381/*
374330e2 3382 * Invalidate the whole screen so it will be repainted in full.
3383 */
887035a5 3384void term_invalidate(Terminal *term)
32874aea 3385{
374330e2 3386 int i;
3387
887035a5 3388 for (i = 0; i < term->rows * (term->cols + 1); i++)
3389 term->disptext[i] = ATTR_INVALID;
374330e2 3390}
3391
3392/*
3393 * Paint the window in response to a WM_PAINT message.
3394 */
887035a5 3395void term_paint(Terminal *term, Context ctx,
c1b55581 3396 int left, int top, int right, int bottom, int immediately)
32874aea 3397{
5a73255e 3398 int i, j;
3399 if (left < 0) left = 0;
3400 if (top < 0) top = 0;
887035a5 3401 if (right >= term->cols) right = term->cols-1;
3402 if (bottom >= term->rows) bottom = term->rows-1;
3403
3404 for (i = top; i <= bottom && i < term->rows; i++) {
3405 if ((term->disptext[i * (term->cols + 1) + term->cols] &
3406 LATTR_MODE) == LATTR_NORM)
3407 for (j = left; j <= right && j < term->cols; j++)
3408 term->disptext[i * (term->cols + 1) + j] = ATTR_INVALID;
c9def1b8 3409 else
887035a5 3410 for (j = left / 2; j <= right / 2 + 1 && j < term->cols; j++)
3411 term->disptext[i * (term->cols + 1) + j] = ATTR_INVALID;
c9def1b8 3412 }
374330e2 3413
e14a5a13 3414 /* This should happen soon enough, also for some reason it sometimes
3415 * fails to actually do anything when re-sizing ... painting the wrong
3416 * window perhaps ?
32874aea 3417 */
c1b55581 3418 if (immediately)
887035a5 3419 do_paint (term, ctx, FALSE);
374330e2 3420}
3421
3422/*
3423 * Attempt to scroll the scrollback. The second parameter gives the
3424 * position we want to scroll to; the first is +1 to denote that
3425 * this position is relative to the beginning of the scrollback, -1
3426 * to denote it is relative to the end, and 0 to denote that it is
3427 * relative to the current position.
3428 */
887035a5 3429void term_scroll(Terminal *term, int rel, int where)
32874aea 3430{
887035a5 3431 int sbtop = -count234(term->scrollback);
37d2a505 3432#ifdef OPTIMISE_SCROLL
3433 int olddisptop = term->disptop;
3434 int shift;
3435#endif /* OPTIMISE_SCROLL */
887035a5 3436
3437 term->disptop = (rel < 0 ? 0 : rel > 0 ? sbtop : term->disptop) + where;
3438 if (term->disptop < sbtop)
3439 term->disptop = sbtop;
3440 if (term->disptop > 0)
3441 term->disptop = 0;
3442 update_sbar(term);
37d2a505 3443#ifdef OPTIMISE_SCROLL
3444 shift = (term->disptop - olddisptop);
3445 if (shift < term->rows && shift > -term->rows)
3446 scroll_display(term, 0, term->rows - 1, shift);
3447#endif /* OPTIMISE_SCROLL */
887035a5 3448 term_update(term);
374330e2 3449}
3450
887035a5 3451static void clipme(Terminal *term, pos top, pos bottom, int rect)
32874aea 3452{
4eeb7d09 3453 wchar_t *workbuf;
3454 wchar_t *wbptr; /* where next char goes within workbuf */
6908fed7 3455 int old_top_x;
32874aea 3456 int wblen = 0; /* workbuf len */
3457 int buflen; /* amount of memory allocated to workbuf */
bc1235d4 3458
4eeb7d09 3459 buflen = 5120; /* Default size */
3460 workbuf = smalloc(buflen * sizeof(wchar_t));
3461 wbptr = workbuf; /* start filling here */
6908fed7 3462 old_top_x = top.x; /* needed for rect==1 */
bc1235d4 3463
4facdf84 3464 while (poslt(top, bottom)) {
bc1235d4 3465 int nl = FALSE;
4facdf84 3466 unsigned long *ldata = lineptr(top.y);
260f3dec 3467 pos nlpos;
4facdf84 3468
6908fed7 3469 /*
3470 * nlpos will point at the maximum position on this line we
3471 * should copy up to. So we start it at the end of the
3472 * line...
3473 */
4facdf84 3474 nlpos.y = top.y;
887035a5 3475 nlpos.x = term->cols;
bc1235d4 3476
6908fed7 3477 /*
3478 * ... move it backwards if there's unused space at the end
3479 * of the line (and also set `nl' if this is the case,
3480 * because in normal selection mode this means we need a
3481 * newline at the end)...
3482 */
887035a5 3483 if (!(ldata[term->cols] & LATTR_WRAPPED)) {
4eeb7d09 3484 while (((ldata[nlpos.x - 1] & 0xFF) == 0x20 ||
3485 (DIRECT_CHAR(ldata[nlpos.x - 1]) &&
3486 (ldata[nlpos.x - 1] & CHAR_MASK) == 0x20))
3487 && poslt(top, nlpos))
3488 decpos(nlpos);
4facdf84 3489 if (poslt(nlpos, bottom))
bc1235d4 3490 nl = TRUE;
3c7366f8 3491 } else if (ldata[term->cols] & LATTR_WRAPPED2) {
3492 /* Ignore the last char on the line in a WRAPPED2 line. */
3493 decpos(nlpos);
bc1235d4 3494 }
6908fed7 3495
3496 /*
3497 * ... and then clip it to the terminal x coordinate if
3498 * we're doing rectangular selection. (In this case we
3499 * still did the above, so that copying e.g. the right-hand
3500 * column from a table doesn't fill with spaces on the
3501 * right.)
3502 */
3503 if (rect) {
3504 if (nlpos.x > bottom.x)
3505 nlpos.x = bottom.x;
3506 nl = (top.y < bottom.y);
3507 }
3508
4facdf84 3509 while (poslt(top, bottom) && poslt(top, nlpos)) {
4eeb7d09 3510#if 0
3511 char cbuf[16], *p;
3512 sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF));
3513#else
3514 wchar_t cbuf[16], *p;
3515 int uc = (ldata[top.x] & 0xFFFF);
3516 int set, c;
3517
3518 if (uc == UCSWIDE) {
3519 top.x++;
3520 continue;
3521 }
3522
3523 switch (uc & CSET_MASK) {
3524 case ATTR_LINEDRW:
64734920 3525 if (!term->cfg.rawcnp) {
21d2b241 3526 uc = term->ucsdata->unitab_xterm[uc & 0xFF];
4eeb7d09 3527 break;
32874aea 3528 }
4eeb7d09 3529 case ATTR_ASCII:
21d2b241 3530 uc = term->ucsdata->unitab_line[uc & 0xFF];
4eeb7d09 3531 break;
d3cb5465 3532 case ATTR_SCOACS:
21d2b241 3533 uc = term->ucsdata->unitab_scoacs[uc&0xFF];
d3cb5465 3534 break;
d3a22f79 3535 }
4eeb7d09 3536 switch (uc & CSET_MASK) {
3537 case ATTR_ACP:
21d2b241 3538 uc = term->ucsdata->unitab_font[uc & 0xFF];
4eeb7d09 3539 break;
3540 case ATTR_OEMCP:
21d2b241 3541 uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
4eeb7d09 3542 break;
3543 }
3544
3545 set = (uc & CSET_MASK);
3546 c = (uc & CHAR_MASK);
3547 cbuf[0] = uc;
3548 cbuf[1] = 0;
3549
3550 if (DIRECT_FONT(uc)) {
3551 if (c >= ' ' && c != 0x7F) {
e63ae276 3552 char buf[4];
4eeb7d09 3553 WCHAR wbuf[4];
3554 int rv;
21d2b241 3555 if (is_dbcs_leadbyte(term->ucsdata->font_codepage, (BYTE) c)) {
4eeb7d09 3556 buf[0] = c;
7b966c9b 3557 buf[1] = (char) (0xFF & ldata[top.x + 1]);
21d2b241 3558 rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 2, wbuf, 4);
4eeb7d09 3559 top.x++;
3560 } else {
3561 buf[0] = c;
21d2b241 3562 rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 1, wbuf, 4);
4eeb7d09 3563 }
bc1235d4 3564
4eeb7d09 3565 if (rv > 0) {
3566 memcpy(cbuf, wbuf, rv * sizeof(wchar_t));
3567 cbuf[rv] = 0;
d3a22f79 3568 }
d3a22f79 3569 }
4eeb7d09 3570 }
3571#endif
3572
3573 for (p = cbuf; *p; p++) {
3574 /* Enough overhead for trailing NL and nul */
3575 if (wblen >= buflen - 16) {
3576 workbuf =
3577 srealloc(workbuf,
3578 sizeof(wchar_t) * (buflen += 100));
3579 wbptr = workbuf + wblen;
3580 }
3581 wblen++;
3582 *wbptr++ = *p;
bc1235d4 3583 }
4facdf84 3584 top.x++;
bc1235d4 3585 }
3586 if (nl) {
3587 int i;
4eeb7d09 3588 for (i = 0; i < sel_nl_sz; i++) {
32874aea 3589 wblen++;
bc1235d4 3590 *wbptr++ = sel_nl[i];
3591 }
3592 }
4facdf84 3593 top.y++;
6908fed7 3594 top.x = rect ? old_top_x : 0;
bc1235d4 3595 }
e6346999 3596#if SELECTION_NUL_TERMINATED
4eeb7d09 3597 wblen++;
3598 *wbptr++ = 0;
e6346999 3599#endif
a8327734 3600 write_clip(term->frontend, workbuf, wblen, FALSE); /* transfer to clipbd */
32874aea 3601 if (buflen > 0) /* indicates we allocated this buffer */
bc1235d4 3602 sfree(workbuf);
bc1235d4 3603}
4eeb7d09 3604
887035a5 3605void term_copyall(Terminal *term)
32874aea 3606{
4facdf84 3607 pos top;
887035a5 3608 top.y = -count234(term->scrollback);
4facdf84 3609 top.x = 0;
887035a5 3610 clipme(term, top, term->curs, 0);
4eeb7d09 3611}
3612
3613/*
887035a5 3614 * The wordness array is mainly for deciding the disposition of the
3615 * US-ASCII characters.
4eeb7d09 3616 */
887035a5 3617static int wordtype(Terminal *term, int uc)
4eeb7d09 3618{
b9d7bcad 3619 struct ucsword {
4eeb7d09 3620 int start, end, ctype;
b9d7bcad 3621 };
3622 static const struct ucsword ucs_words[] = {
4eeb7d09 3623 {
3624 128, 160, 0}, {
3625 161, 191, 1}, {
3626 215, 215, 1}, {
3627 247, 247, 1}, {
3628 0x037e, 0x037e, 1}, /* Greek question mark */
3629 {
3630 0x0387, 0x0387, 1}, /* Greek ano teleia */
3631 {
3632 0x055a, 0x055f, 1}, /* Armenian punctuation */
3633 {
3634 0x0589, 0x0589, 1}, /* Armenian full stop */
3635 {
3636 0x0700, 0x070d, 1}, /* Syriac punctuation */
3637 {
3638 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3639 {
3640 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3641 {
3642 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3643 {
3644 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3645 {
3646 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3647 {
3648 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3649 {
3650 0x2000, 0x200a, 0}, /* Various spaces */
3651 {
3652 0x2070, 0x207f, 2}, /* superscript */
3653 {
3654 0x2080, 0x208f, 2}, /* subscript */
3655 {
3656 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3657 {
3658 0x3000, 0x3000, 0}, /* ideographic space */
3659 {
3660 0x3001, 0x3020, 1}, /* ideographic punctuation */
3661 {
3662 0x303f, 0x309f, 3}, /* Hiragana */
3663 {
3664 0x30a0, 0x30ff, 3}, /* Katakana */
3665 {
3666 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3667 {
3668 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3669 {
3670 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3671 {
3672 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3673 {
3674 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3675 {
3676 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3677 {
3678 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3679 {
3680 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3681 {
3682 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3683 {
3684 0, 0, 0}
3685 };
b9d7bcad 3686 const struct ucsword *wptr;
4eeb7d09 3687
3688 uc &= (CSET_MASK | CHAR_MASK);
3689
3690 switch (uc & CSET_MASK) {
3691 case ATTR_LINEDRW:
21d2b241 3692 uc = term->ucsdata->unitab_xterm[uc & 0xFF];
4eeb7d09 3693 break;
3694 case ATTR_ASCII:
21d2b241 3695 uc = term->ucsdata->unitab_line[uc & 0xFF];
4eeb7d09 3696 break;
d3cb5465 3697 case ATTR_SCOACS:
21d2b241 3698 uc = term->ucsdata->unitab_scoacs[uc&0xFF];
d3cb5465 3699 break;
4eeb7d09 3700 }
3701 switch (uc & CSET_MASK) {
3702 case ATTR_ACP:
21d2b241 3703 uc = term->ucsdata->unitab_font[uc & 0xFF];
4eeb7d09 3704 break;
3705 case ATTR_OEMCP:
21d2b241 3706 uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
4eeb7d09 3707 break;
3708 }
3709
5a73255e 3710 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3711 * fail as there's such a thing as a double width space. :-(
3712 */
21d2b241 3713 if (term->ucsdata->dbcs_screenfont &&
3714 term->ucsdata->font_codepage == term->ucsdata->line_codepage)
5a73255e 3715 return (uc != ' ');
3716
4eeb7d09 3717 if (uc < 0x80)
887035a5 3718 return term->wordness[uc];
4eeb7d09 3719
3720 for (wptr = ucs_words; wptr->start; wptr++) {
3721 if (uc >= wptr->start && uc <= wptr->end)
3722 return wptr->ctype;
3723 }
3724
3725 return 2;
bc1235d4 3726}
3727
374330e2 3728/*
3729 * Spread the selection outwards according to the selection mode.
3730 */
887035a5 3731static pos sel_spread_half(Terminal *term, pos p, int dir)
32874aea 3732{
4facdf84 3733 unsigned long *ldata;
374330e2 3734 short wvalue;
887035a5 3735 int topy = -count234(term->scrollback);
374330e2 3736
4facdf84 3737 ldata = lineptr(p.y);
374330e2 3738
887035a5 3739 switch (term->selmode) {
374330e2 3740 case SM_CHAR:
3741 /*
3742 * In this mode, every character is a separate unit, except
3743 * for runs of spaces at the end of a non-wrapping line.
3744 */
887035a5 3745 if (!(ldata[term->cols] & LATTR_WRAPPED)) {
3746 unsigned long *q = ldata + term->cols;
4facdf84 3747 while (q > ldata && (q[-1] & CHAR_MASK) == 0x20)
374330e2 3748 q--;
887035a5 3749 if (q == ldata + term->cols)
374330e2 3750 q--;
32874aea 3751 if (p.x >= q - ldata)
887035a5 3752 p.x = (dir == -1 ? q - ldata : term->cols - 1);
374330e2 3753 }
3754 break;
3755 case SM_WORD:
3756 /*
3757 * In this mode, the units are maximal runs of characters
3758 * whose `wordness' has the same value.
3759 */
3c7366f8 3760 wvalue = wordtype(term, UCSGET(ldata, p.x));
374330e2 3761 if (dir == +1) {
50ab4088 3762 while (1) {
3c7366f8 3763 int maxcols = (ldata[term->cols] & LATTR_WRAPPED2 ?
3764 term->cols-1 : term->cols);
3765 if (p.x < maxcols-1) {
3766 if (wordtype(term, UCSGET(ldata, p.x + 1)) == wvalue)
50ab4088 3767 p.x++;
3768 else
3769 break;
3770 } else {
887035a5 3771 if (ldata[term->cols] & LATTR_WRAPPED) {
50ab4088 3772 unsigned long *ldata2;
3773 ldata2 = lineptr(p.y+1);
3c7366f8 3774 if (wordtype(term, UCSGET(ldata2, 0)) == wvalue) {
50ab4088 3775 p.x = 0;
3776 p.y++;
3777 ldata = ldata2;
3778 } else
3779 break;
3780 } else
3781 break;
3782 }
3783 }
374330e2 3784 } else {
50ab4088 3785 while (1) {
3786 if (p.x > 0) {
3c7366f8 3787 if (wordtype(term, UCSGET(ldata, p.x - 1)) == wvalue)
50ab4088 3788 p.x--;
3789 else
3790 break;
3791 } else {
3792 unsigned long *ldata2;
3c7366f8 3793 int maxcols;
50ab4088 3794 if (p.y <= topy)
3795 break;
3796 ldata2 = lineptr(p.y-1);
3c7366f8 3797 maxcols = (ldata2[term->cols] & LATTR_WRAPPED2 ?
3798 term->cols-1 : term->cols);
3799 if (ldata2[term->cols] & LATTR_WRAPPED) {
3800 if (wordtype(term, UCSGET(ldata2, maxcols-1))
3801 == wvalue) {
3802 p.x = maxcols-1;
3803 p.y--;
3804 ldata = ldata2;
3805 } else
3806 break;
50ab4088 3807 } else
3808 break;
3809 }
3810 }
374330e2 3811 }
3812 break;
3813 case SM_LINE:
3814 /*
3815 * In this mode, every line is a unit.
3816 */
887035a5 3817 p.x = (dir == -1 ? 0 : term->cols - 1);
374330e2 3818 break;
3819 }
3820 return p;
3821}
3822
887035a5 3823static void sel_spread(Terminal *term)
32874aea 3824{
887035a5 3825 if (term->seltype == LEXICOGRAPHIC) {
3826 term->selstart = sel_spread_half(term, term->selstart, -1);
3827 decpos(term->selend);
3828 term->selend = sel_spread_half(term, term->selend, +1);
3829 incpos(term->selend);
6908fed7 3830 }
374330e2 3831}
3832
887035a5 3833void term_do_paste(Terminal *term)
568dd02f 3834{
3835 wchar_t *data;
3836 int len;
3837
a8327734 3838 get_clip(term->frontend, &data, &len);
2cb50250 3839 if (data && len > 0) {
568dd02f 3840 wchar_t *p, *q;
3841
887035a5 3842 term_seen_key_event(term); /* pasted data counts */
2cb50250 3843
887035a5 3844 if (term->paste_buffer)
3845 sfree(term->paste_buffer);
3846 term->paste_pos = term->paste_hold = term->paste_len = 0;
3847 term->paste_buffer = smalloc(len * sizeof(wchar_t));
568dd02f 3848
3849 p = q = data;
3850 while (p < data + len) {
3851 while (p < data + len &&
3852 !(p <= data + len - sel_nl_sz &&
3853 !memcmp(p, sel_nl, sizeof(sel_nl))))
3854 p++;
3855
3856 {
3857 int i;
3858 for (i = 0; i < p - q; i++) {
887035a5 3859 term->paste_buffer[term->paste_len++] = q[i];
568dd02f 3860 }
3861 }
3862
3863 if (p <= data + len - sel_nl_sz &&
3864 !memcmp(p, sel_nl, sizeof(sel_nl))) {
92e23ad9 3865 term->paste_buffer[term->paste_len++] = '\015';
568dd02f 3866 p += sel_nl_sz;
3867 }
3868 q = p;
3869 }
3870
3871 /* Assume a small paste will be OK in one go. */
887035a5 3872 if (term->paste_len < 256) {
b9d7bcad 3873 if (term->ldisc)
3874 luni_send(term->ldisc, term->paste_buffer, term->paste_len, 0);
887035a5 3875 if (term->paste_buffer)
3876 sfree(term->paste_buffer);
3877 term->paste_buffer = 0;
3878 term->paste_pos = term->paste_hold = term->paste_len = 0;
568dd02f 3879 }
3880 }
a8327734 3881 get_clip(term->frontend, NULL, NULL);
568dd02f 3882}
3883
fc5b0934 3884void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked,
3885 Mouse_Action a, int x, int y, int shift, int ctrl, int alt)
32874aea 3886{
4facdf84 3887 pos selpoint;
3888 unsigned long *ldata;
887035a5 3889 int raw_mouse = (term->xterm_mouse &&
64734920 3890 !term->cfg.no_mouse_rep &&
3891 !(term->cfg.mouse_override && shift));
6908fed7 3892 int default_seltype;
32874aea 3893
fff61f25 3894 if (y < 0) {
32874aea 3895 y = 0;
fff61f25 3896 if (a == MA_DRAG && !raw_mouse)
887035a5 3897 term_scroll(term, 0, -1);
fff61f25 3898 }
887035a5 3899 if (y >= term->rows) {
3900 y = term->rows - 1;
fff61f25 3901 if (a == MA_DRAG && !raw_mouse)
887035a5 3902 term_scroll(term, 0, +1);
fff61f25 3903 }
32874aea 3904 if (x < 0) {
3905 if (y > 0) {
887035a5 3906 x = term->cols - 1;
32874aea 3907 y--;
3908 } else
3909 x = 0;
094ed2a6 3910 }
887035a5 3911 if (x >= term->cols)
3912 x = term->cols - 1;
37508af4 3913
887035a5 3914 selpoint.y = y + term->disptop;
4facdf84 3915 selpoint.x = x;
3916 ldata = lineptr(selpoint.y);
887035a5 3917 if ((ldata[term->cols] & LATTR_MODE) != LATTR_NORM)
4facdf84 3918 selpoint.x /= 2;
374330e2 3919
fff61f25 3920 if (raw_mouse) {
01c034ad 3921 int encstate = 0, r, c;
3922 char abuf[16];
01c034ad 3923
b9d7bcad 3924 if (term->ldisc) {
3925
fc5b0934 3926 switch (braw) {
b9d7bcad 3927 case MBT_LEFT:
3928 encstate = 0x20; /* left button down */
3929 break;
3930 case MBT_MIDDLE:
3931 encstate = 0x21;
3932 break;
3933 case MBT_RIGHT:
3934 encstate = 0x22;
3935 break;
3936 case MBT_WHEEL_UP:
3937 encstate = 0x60;
3938 break;
3939 case MBT_WHEEL_DOWN:
3940 encstate = 0x61;
3941 break;
3942 default: break; /* placate gcc warning about enum use */
3943 }
3944 switch (a) {
3945 case MA_DRAG:
3946 if (term->xterm_mouse == 1)
3947 return;
3948 encstate += 0x20;
3949 break;
3950 case MA_RELEASE:
3951 encstate = 0x23;
3952 term->mouse_is_down = 0;
3953 break;
3954 case MA_CLICK:
fc5b0934 3955 if (term->mouse_is_down == braw)
b9d7bcad 3956 return;
fc5b0934 3957 term->mouse_is_down = braw;
b9d7bcad 3958 break;
3959 default: break; /* placate gcc warning about enum use */
3960 }
3961 if (shift)
3962 encstate += 0x04;
3963 if (ctrl)
3964 encstate += 0x10;
3965 r = y + 33;
3966 c = x + 33;
3967
3968 sprintf(abuf, "\033[M%c%c%c", encstate, c, r);
3969 ldisc_send(term->ldisc, abuf, 6, 0);
01c034ad 3970 }
01c034ad 3971 return;
3972 }
3973
6908fed7 3974 /*
3975 * Set the selection type (rectangular or normal) at the start
3976 * of a selection attempt, from the state of Alt.
3977 */
64734920 3978 if (!alt ^ !term->cfg.rect_select)
6908fed7 3979 default_seltype = RECTANGULAR;
3980 else
3981 default_seltype = LEXICOGRAPHIC;
3982
887035a5 3983 if (term->selstate == NO_SELECTION) {
3984 term->seltype = default_seltype;
6908fed7 3985 }
3986
fc5b0934 3987 if (bcooked == MBT_SELECT && a == MA_CLICK) {
887035a5 3988 deselect(term);
3989 term->selstate = ABOUT_TO;
3990 term->seltype = default_seltype;
3991 term->selanchor = selpoint;
3992 term->selmode = SM_CHAR;
fc5b0934 3993 } else if (bcooked == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) {
887035a5 3994 deselect(term);
3995 term->selmode = (a == MA_2CLK ? SM_WORD : SM_LINE);
3996 term->selstate = DRAGGING;
3997 term->selstart = term->selanchor = selpoint;
3998 term->selend = term->selstart;
3999 incpos(term->selend);
4000 sel_spread(term);
fc5b0934 4001 } else if ((bcooked == MBT_SELECT && a == MA_DRAG) ||
4002 (bcooked == MBT_EXTEND && a != MA_RELEASE)) {
887035a5 4003 if (term->selstate == ABOUT_TO && poseq(term->selanchor, selpoint))
374330e2 4004 return;
fc5b0934 4005 if (bcooked == MBT_EXTEND && a != MA_DRAG &&
4006 term->selstate == SELECTED) {
887035a5 4007 if (term->seltype == LEXICOGRAPHIC) {
6908fed7 4008 /*
4009 * For normal selection, we extend by moving
4010 * whichever end of the current selection is closer
4011 * to the mouse.
4012 */
887035a5 4013 if (posdiff(selpoint, term->selstart) <
4014 posdiff(term->selend, term->selstart) / 2) {
4015 term->selanchor = term->selend;
4016 decpos(term->selanchor);
6908fed7 4017 } else {
887035a5 4018 term->selanchor = term->selstart;
6908fed7 4019 }
4facdf84 4020 } else {
6908fed7 4021 /*
4022 * For rectangular selection, we have a choice of
4023 * _four_ places to put selanchor and selpoint: the
4024 * four corners of the selection.
4025 */
887035a5 4026 if (2*selpoint.x < term->selstart.x + term->selend.x)
4027 term->selanchor.x = term->selend.x-1;
6908fed7 4028 else
887035a5 4029 term->selanchor.x = term->selstart.x;
6908fed7 4030
887035a5 4031 if (2*selpoint.y < term->selstart.y + term->selend.y)
4032 term->selanchor.y = term->selend.y;
6908fed7 4033 else
887035a5 4034 term->selanchor.y = term->selstart.y;
4facdf84 4035 }
887035a5 4036 term->selstate = DRAGGING;
374330e2 4037 }
887035a5 4038 if (term->selstate != ABOUT_TO && term->selstate != DRAGGING)
4039 term->selanchor = selpoint;
4040 term->selstate = DRAGGING;
4041 if (term->seltype == LEXICOGRAPHIC) {
6908fed7 4042 /*
4043 * For normal selection, we set (selstart,selend) to
4044 * (selpoint,selanchor) in some order.
4045 */
887035a5 4046 if (poslt(selpoint, term->selanchor)) {
4047 term->selstart = selpoint;
4048 term->selend = term->selanchor;
4049 incpos(term->selend);
6908fed7 4050 } else {
887035a5 4051 term->selstart = term->selanchor;
4052 term->selend = selpoint;
4053 incpos(term->selend);
6908fed7 4054 }
374330e2 4055 } else {
6908fed7 4056 /*
4057 * For rectangular selection, we may need to
4058 * interchange x and y coordinates (if the user has
4059 * dragged in the -x and +y directions, or vice versa).
4060 */
887035a5 4061 term->selstart.x = min(term->selanchor.x, selpoint.x);
4062 term->selend.x = 1+max(term->selanchor.x, selpoint.x);
4063 term->selstart.y = min(term->selanchor.y, selpoint.y);
4064 term->selend.y = max(term->selanchor.y, selpoint.y);
374330e2 4065 }
887035a5 4066 sel_spread(term);
fc5b0934 4067 } else if ((bcooked == MBT_SELECT || bcooked == MBT_EXTEND) &&
4068 a == MA_RELEASE) {
887035a5 4069 if (term->selstate == DRAGGING) {
374330e2 4070 /*
4071 * We've completed a selection. We now transfer the
4072 * data to the clipboard.
4073 */
887035a5 4074 clipme(term, term->selstart, term->selend,
4075 (term->seltype == RECTANGULAR));
4076 term->selstate = SELECTED;
374330e2 4077 } else
887035a5 4078 term->selstate = NO_SELECTION;
fc5b0934 4079 } else if (bcooked == MBT_PASTE
e6346999 4080 && (a == MA_CLICK
4081#if MULTICLICK_ONLY_EVENT
4082 || a == MA_2CLK || a == MA_3CLK
4083#endif
4084 )) {
a8327734 4085 request_paste(term->frontend);
374330e2 4086 }
4087
887035a5 4088 term_update(term);
374330e2 4089}
4090
6c50d421 4091void term_key(Terminal *term, Key_Sym keysym, wchar_t *text, size_t tlen,
4092 unsigned int modifiers, unsigned int flags)
4093{
4094 char output[10];
4095 char *p = output;
4096 int prependesc = FALSE;
84b8d085 4097#if 0
6c50d421 4098 int i;
4099
4100 fprintf(stderr, "keysym = %d, %d chars:", keysym, tlen);
4101 for (i = 0; i < tlen; i++)
bf02e82e 4102 fprintf(stderr, " %04x", (unsigned)text[i]);
6c50d421 4103 fprintf(stderr, "\n");
84b8d085 4104#endif
6c50d421 4105
4106 /* XXX Num Lock */
4107 if ((flags & PKF_REPEAT) && term->repeat_off)
4108 return;
4109
4110 /* Currently, Meta always just prefixes everything with ESC. */
4111 if (modifiers & PKM_META)
4112 prependesc = TRUE;
4113 modifiers &= ~PKM_META;
4114
4115 /*
4116 * Alt is only used for Alt+keypad, which isn't supported yet, so
4117 * ignore it.
4118 */
4119 modifiers &= ~PKM_ALT;
4120
4121 /* Standard local function keys */
4122 switch (modifiers & (PKM_SHIFT | PKM_CONTROL)) {
4123 case PKM_SHIFT:
4124 if (keysym == PK_PAGEUP)
4125 /* scroll up one page */;
4126 if (keysym == PK_PAGEDOWN)
4127 /* scroll down on page */;
4128 if (keysym == PK_INSERT)
4129 term_do_paste(term);
4130 break;
4131 case PKM_CONTROL:
4132 if (keysym == PK_PAGEUP)
4133 /* scroll up one line */;
4134 if (keysym == PK_PAGEDOWN)
4135 /* scroll down one line */;
4136 /* Control-Numlock for app-keypad mode switch */
4137 if (keysym == PK_PF1)
4138 term->app_keypad_keys ^= 1;
4139 break;
4140 }
4141
4142 if (modifiers & PKM_ALT) {
4143 /* Alt+F4 (close) */
4144 /* Alt+Return (full screen) */
4145 /* Alt+Space (system menu) */
4146 }
4147
4148 if (keysym == PK_NULL && (modifiers & PKM_CONTROL) && tlen == 1 &&
4149 text[0] >= 0x20 && text[0] <= 0x7e) {
4150 /* ASCII chars + Control */
bf02e82e 4151 if ((text[0] >= 0x40 && text[0] <= 0x5f) ||
4152 (text[0] >= 0x61 && text[0] <= 0x7a))
6c50d421 4153 text[0] &= 0x1f;
4154 else {
4155 /*
4156 * Control-2 should return ^@ (0x00), Control-6 should return
4157 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
4158 * the DOS keyboard handling did it, and we have nothing better
4159 * to do with the key combo in question, we'll also map
4160 * Control-Backquote to ^\ (0x1C).
4161 */
4162 switch (text[0]) {
4163 case ' ': text[0] = 0x00; break;
4164 case '-': text[0] = 0x1f; break;
4165 case '/': text[0] = 0x1f; break;
4166 case '2': text[0] = 0x00; break;
4167 case '3': text[0] = 0x1b; break;
4168 case '4': text[0] = 0x1c; break;
4169 case '5': text[0] = 0x1d; break;
4170 case '6': text[0] = 0x1e; break;
4171 case '7': text[0] = 0x1f; break;
4172 case '8': text[0] = 0x7f; break;
4173 case '`': text[0] = 0x1c; break;
4174 }
4175 }
4176 }
4177
4178 /* Nethack keypad */
4179 if (term->cfg.nethack_keypad) {
4180 char c = 0;
4181 switch (keysym) {
4182 case PK_KP1: c = 'b'; break;
4183 case PK_KP2: c = 'j'; break;
4184 case PK_KP3: c = 'n'; break;
4185 case PK_KP4: c = 'h'; break;
4186 case PK_KP5: c = '.'; break;
4187 case PK_KP6: c = 'l'; break;
4188 case PK_KP7: c = 'y'; break;
4189 case PK_KP8: c = 'k'; break;
4190 case PK_KP9: c = 'u'; break;
bf02e82e 4191 default: break; /* else gcc warns `enum value not used' */
6c50d421 4192 }
4193 if (c != 0) {
4194 if (c != '.') {
4195 if (modifiers & PKM_CONTROL)
4196 c &= 0x1f;
4197 else if (modifiers & PKM_SHIFT)
4198 c = toupper(c);
4199 }
4200 *p++ = c;
4201 goto done;
4202 }
4203 }
4204
4205 /* Numeric Keypad */
4206 if (PK_ISKEYPAD(keysym)) {
4207 int xkey = 0;
4208
4209 /*
4210 * In VT400 mode, PFn always emits an escape sequence. In
4211 * Linux and tilde modes, this only happens in app keypad mode.
4212 */
4213 if (term->cfg.funky_type == FUNKY_VT400 ||
4214 ((term->cfg.funky_type == FUNKY_LINUX ||
4215 term->cfg.funky_type == FUNKY_TILDE) &&
4216 term->app_keypad_keys && !term->cfg.no_applic_k)) {
4217 switch (keysym) {
4218 case PK_PF1: xkey = 'P'; break;
4219 case PK_PF2: xkey = 'Q'; break;
4220 case PK_PF3: xkey = 'R'; break;
4221 case PK_PF4: xkey = 'S'; break;
bf02e82e 4222 default: break; /* else gcc warns `enum value not used' */
6c50d421 4223 }
4224 }
4225 if (term->app_keypad_keys && !term->cfg.no_applic_k) {
4226 switch (keysym) {
4227 case PK_KP0: xkey = 'p'; break;
4228 case PK_KP1: xkey = 'q'; break;
4229 case PK_KP2: xkey = 'r'; break;
4230 case PK_KP3: xkey = 's'; break;
4231 case PK_KP4: xkey = 't'; break;
4232 case PK_KP5: xkey = 'u'; break;
4233 case PK_KP6: xkey = 'v'; break;
4234 case PK_KP7: xkey = 'w'; break;
4235 case PK_KP8: xkey = 'x'; break;
4236 case PK_KP9: xkey = 'y'; break;
4237 case PK_KPDECIMAL: xkey = 'n'; break;
4238 case PK_KPENTER: xkey = 'M'; break;
bf02e82e 4239 default: break; /* else gcc warns `enum value not used' */
6c50d421 4240 }
4241 if (term->cfg.funky_type == FUNKY_XTERM && tlen > 0) {
4242 /*
4243 * xterm can't see the layout of the keypad, so it has
4244 * to rely on the X keysyms returned by the keys.
4245 * Hence, we look at the strings here, not the PuTTY
4246 * keysyms (which describe the layout).
4247 */
4248 switch (text[0]) {
4249 case '+':
4250 if (modifiers & PKM_SHIFT)
4251 xkey = 'l';
4252 else
4253 xkey = 'k';
4254 break;
4255 case '/': xkey = 'o'; break;
4256 case '*': xkey = 'j'; break;
4257 case '-': xkey = 'm'; break;
4258 }
4259 } else {
4260 /*
4261 * In all other modes, we try to retain the layout of
4262 * the DEC keypad in application mode.
4263 */
4264 switch (keysym) {
4265 case PK_KPBIGPLUS:
4266 /* This key covers the '-' and ',' keys on a VT220 */
4267 if (modifiers & PKM_SHIFT)
4268 xkey = 'm'; /* VT220 '-' */
4269 else
4270 xkey = 'l'; /* VT220 ',' */
4271 break;
4272 case PK_KPMINUS: xkey = 'm'; break;
4273 case PK_KPCOMMA: xkey = 'l'; break;
bf02e82e 4274 default: break; /* else gcc warns `enum value not used' */
6c50d421 4275 }
4276 }
4277 }
4278 if (xkey) {
4279 if (term->vt52_mode) {
4280 if (xkey >= 'P' && xkey <= 'S')
4281 p += sprintf((char *) p, "\x1B%c", xkey);
4282 else
4283 p += sprintf((char *) p, "\x1B?%c", xkey);
4284 } else
4285 p += sprintf((char *) p, "\x1BO%c", xkey);
4286 goto done;
4287 }
4288 /* Not in application mode -- treat the number pad as arrow keys? */
4289 if ((flags & PKF_NUMLOCK) == 0) {
4290 switch (keysym) {
4291 case PK_KP0: keysym = PK_INSERT; break;
4292 case PK_KP1: keysym = PK_END; break;
4293 case PK_KP2: keysym = PK_DOWN; break;
4294 case PK_KP3: keysym = PK_PAGEDOWN; break;
4295 case PK_KP4: keysym = PK_LEFT; break;
4296 case PK_KP5: keysym = PK_REST; break;
4297 case PK_KP6: keysym = PK_RIGHT; break;
4298 case PK_KP7: keysym = PK_HOME; break;
4299 case PK_KP8: keysym = PK_UP; break;
4300 case PK_KP9: keysym = PK_PAGEUP; break;
bf02e82e 4301 default: break; /* else gcc warns `enum value not used' */
6c50d421 4302 }
4303 }
4304 }
4305
4306 /* Miscellaneous keys */
4307 switch (keysym) {
4308 case PK_ESCAPE:
4309 *p++ = 0x1b;
4310 goto done;
4311 case PK_BACKSPACE:
4312 if (modifiers == 0)
4313 *p++ = (term->cfg.bksp_is_delete ? 0x7F : 0x08);
4314 else if (modifiers == PKM_SHIFT)
4315 /* We do the opposite of what is configured */
4316 *p++ = (term->cfg.bksp_is_delete ? 0x08 : 0x7F);
4317 else break;
4318 goto done;
4319 case PK_TAB:
4320 if (modifiers == 0)
4321 *p++ = 0x09;
4322 else if (modifiers == PKM_SHIFT)
4323 *p++ = 0x1B, *p++ = '[', *p++ = 'Z';
4324 else break;
4325 goto done;
4326 /* XXX window.c has ctrl+shift+space sending 0xa0 */
4327 case PK_PAUSE:
4328 if (modifiers == PKM_CONTROL)
4329 *p++ = 26;
4330 else break;
4331 goto done;
4332 case PK_RETURN:
4333 case PK_KPENTER: /* Odd keypad modes handled above */
4334 if (modifiers == 0) {
4335 *p++ = 0x0d;
4336 if (term->cr_lf_return)
4337 *p++ = 0x0a;
4338 goto done;
4339 }
bf02e82e 4340 default: break; /* else gcc warns `enum value not used' */
6c50d421 4341 }
4342
4343 /* SCO function keys and editing keys */
4344 if (term->cfg.funky_type == FUNKY_SCO) {
4345 if (PK_ISFKEY(keysym) && keysym <= PK_F12) {
4346 static char const codes[] =
4347 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
4348 int index = keysym - PK_F1;
4349
4350 if (modifiers & PKM_SHIFT) index += 12;
4351 if (modifiers & PKM_CONTROL) index += 24;
4352 p += sprintf((char *) p, "\x1B[%c", codes[index]);
4353 goto done;
4354 }
4355 if (PK_ISEDITING(keysym)) {
4356 int xkey = 0;
4357
4358 switch (keysym) {
4359 case PK_DELETE: *p++ = 0x7f; goto done;
4360 case PK_HOME: xkey = 'H'; break;
4361 case PK_INSERT: xkey = 'L'; break;
4362 case PK_END: xkey = 'F'; break;
4363 case PK_PAGEUP: xkey = 'I'; break;
4364 case PK_PAGEDOWN: xkey = 'G'; break;
bf02e82e 4365 default: break; /* else gcc warns `enum value not used' */
6c50d421 4366 }
4367 p += sprintf((char *) p, "\x1B[%c", xkey);
4368 }
4369 }
4370
4371 if (PK_ISEDITING(keysym) && (modifiers & PKM_SHIFT) == 0) {
4372 int code;
4373
4374 if (term->cfg.funky_type == FUNKY_XTERM) {
4375 /* Xterm shuffles these keys, apparently. */
4376 switch (keysym) {
4377 case PK_HOME: keysym = PK_INSERT; break;
4378 case PK_INSERT: keysym = PK_HOME; break;
4379 case PK_DELETE: keysym = PK_END; break;
4380 case PK_END: keysym = PK_PAGEUP; break;
4381 case PK_PAGEUP: keysym = PK_DELETE; break;
4382 case PK_PAGEDOWN: keysym = PK_PAGEDOWN; break;
bf02e82e 4383 default: break; /* else gcc warns `enum value not used' */
6c50d421 4384 }
4385 }
4386
4387 /* RXVT Home/End */
4388 if (term->cfg.rxvt_homeend &&
4389 (keysym == PK_HOME || keysym == PK_END)) {
4390 p += sprintf((char *) p, keysym == PK_HOME ? "\x1B[H" : "\x1BOw");
4391 goto done;
4392 }
4393
4394 if (term->vt52_mode) {
4395 int xkey;
4396
4397 /*
4398 * A real VT52 doesn't have these, and a VT220 doesn't
4399 * send anything for them in VT52 mode.
4400 */
4401 switch (keysym) {
4402 case PK_HOME: xkey = 'H'; break;
4403 case PK_INSERT: xkey = 'L'; break;
4404 case PK_DELETE: xkey = 'M'; break;
4405 case PK_END: xkey = 'E'; break;
4406 case PK_PAGEUP: xkey = 'I'; break;
4407 case PK_PAGEDOWN: xkey = 'G'; break;
bf02e82e 4408 default: break; /* else gcc warns `enum value not used' */
6c50d421 4409 }
4410 p += sprintf((char *) p, "\x1B%c", xkey);
4411 goto done;
4412 }
4413
4414 switch (keysym) {
4415 case PK_HOME: code = 1; break;
4416 case PK_INSERT: code = 2; break;
4417 case PK_DELETE: code = 3; break;
4418 case PK_END: code = 4; break;
4419 case PK_PAGEUP: code = 5; break;
4420 case PK_PAGEDOWN: code = 6; break;
bf02e82e 4421 default: break; /* else gcc warns `enum value not used' */
6c50d421 4422 }
4423 p += sprintf((char *) p, "\x1B[%d~", code);
4424 goto done;
4425 }
4426
4427 if (PK_ISFKEY(keysym)) {
4428 /* Map Shift+F1-F10 to F11-F20 */
4429 if (keysym >= PK_F1 && keysym <= PK_F10 && (modifiers & PKM_SHIFT))
4430 keysym += 10;
4431 if ((term->vt52_mode || term->cfg.funky_type == FUNKY_VT100P) &&
4432 keysym <= PK_F14) {
4433 /* XXX This overrides the XTERM/VT52 mode below */
4434 int offt = 0;
4435 if (keysym >= PK_F6) offt++;
4436 if (keysym >= PK_F12) offt++;
4437 p += sprintf((char *) p, term->vt52_mode ? "\x1B%c" : "\x1BO%c",
4438 'P' + keysym - PK_F1 - offt);
4439 goto done;
4440 }
4441 if (term->cfg.funky_type == FUNKY_LINUX && keysym <= PK_F5) {
4442 p += sprintf((char *) p, "\x1B[[%c", 'A' + keysym - PK_F1);
4443 goto done;
4444 }
4445 if (term->cfg.funky_type == FUNKY_XTERM && keysym <= PK_F4) {
4446 if (term->vt52_mode)
4447 p += sprintf((char *) p, "\x1B%c", 'P' + keysym - PK_F1);
4448 else
4449 p += sprintf((char *) p, "\x1BO%c", 'P' + keysym - PK_F1);
4450 goto done;
4451 }
4452 p += sprintf((char *) p, "\x1B[%d~", 11 + keysym - PK_F1);
4453 goto done;
4454 }
4455
4456 if (PK_ISCURSOR(keysym)) {
4457 int xkey;
4458
4459 switch (keysym) {
4460 case PK_UP: xkey = 'A'; break;
4461 case PK_DOWN: xkey = 'B'; break;
4462 case PK_RIGHT: xkey = 'C'; break;
4463 case PK_LEFT: xkey = 'D'; break;
4464 case PK_REST: xkey = 'G'; break; /* centre key on number pad */
bf02e82e 4465 default: break; /* else gcc warns `enum value not used' */
6c50d421 4466 }
4467 if (term->vt52_mode)
4468 p += sprintf((char *) p, "\x1B%c", xkey);
4469 else {
4470 int app_flg = (term->app_cursor_keys && !term->cfg.no_applic_c);
4471
4472 /* Useful mapping of Ctrl-arrows */
4473 if (modifiers == PKM_CONTROL)
4474 app_flg = !app_flg;
4475
4476 if (app_flg)
4477 p += sprintf((char *) p, "\x1BO%c", xkey);
4478 else
4479 p += sprintf((char *) p, "\x1B[%c", xkey);
4480 }
4481 goto done;
4482 }
4483
4484 done:
4485 if (p > output || tlen > 0) {
4486 /*
4487 * Interrupt an ongoing paste. I'm not sure
4488 * this is sensible, but for the moment it's
4489 * preferable to having to faff about buffering
4490 * things.
4491 */
4492 term_nopaste(term);
4493
4494 /*
4495 * We need not bother about stdin backlogs
4496 * here, because in GUI PuTTY we can't do
4497 * anything about it anyway; there's no means
4498 * of asking Windows to hold off on KEYDOWN
4499 * messages. We _have_ to buffer everything
4500 * we're sent.
4501 */
4502 term_seen_key_event(term);
4503
4504 if (prependesc) {
84b8d085 4505#if 0
6c50d421 4506 fprintf(stderr, "sending ESC\n");
84b8d085 4507#endif
6c50d421 4508 ldisc_send(term->ldisc, "\x1b", 1, 1);
4509 }
4510
4511 if (p > output) {
84b8d085 4512#if 0
6c50d421 4513 fprintf(stderr, "sending %d bytes:", p - output);
4514 for (i = 0; i < p - output; i++)
4515 fprintf(stderr, " %02x", output[i]);
4516 fprintf(stderr, "\n");
84b8d085 4517#endif
6c50d421 4518 ldisc_send(term->ldisc, output, p - output, 1);
4519 } else if (tlen > 0) {
84b8d085 4520#if 0
6c50d421 4521 fprintf(stderr, "sending %d unichars:", tlen);
4522 for (i = 0; i < tlen; i++)
bf02e82e 4523 fprintf(stderr, " %04x", (unsigned) text[i]);
6c50d421 4524 fprintf(stderr, "\n");
84b8d085 4525#endif
6c50d421 4526 luni_send(term->ldisc, text, tlen, 1);
4527 }
4528 }
4529}
4530
887035a5 4531void term_nopaste(Terminal *term)
32874aea 4532{
887035a5 4533 if (term->paste_len == 0)
32874aea 4534 return;
887035a5 4535 sfree(term->paste_buffer);
f278d6f8 4536 term->paste_buffer = NULL;
887035a5 4537 term->paste_len = 0;
c9def1b8 4538}
4539
887035a5 4540int term_paste_pending(Terminal *term)
0f660c8f 4541{
887035a5 4542 return term->paste_len != 0;
0f660c8f 4543}
4544
887035a5 4545void term_paste(Terminal *term)
32874aea 4546{
c9def1b8 4547 long now, paste_diff;
4548
887035a5 4549 if (term->paste_len == 0)
32874aea 4550 return;
c9def1b8 4551
4552 /* Don't wait forever to paste */
887035a5 4553 if (term->paste_hold) {
f7f27309 4554 now = GETTICKCOUNT();
887035a5 4555 paste_diff = now - term->last_paste;
32874aea 4556 if (paste_diff >= 0 && paste_diff < 450)
c9def1b8 4557 return;
4558 }
887035a5 4559 term->paste_hold = 0;
c9def1b8 4560
887035a5 4561 while (term->paste_pos < term->paste_len) {
8df7a775 4562 int n = 0;
887035a5 4563 while (n + term->paste_pos < term->paste_len) {
92e23ad9 4564 if (term->paste_buffer[term->paste_pos + n++] == '\015')
8df7a775 4565 break;
4566 }
b9d7bcad 4567 if (term->ldisc)
4568 luni_send(term->ldisc, term->paste_buffer + term->paste_pos, n, 0);
887035a5 4569 term->paste_pos += n;
c9def1b8 4570
887035a5 4571 if (term->paste_pos < term->paste_len) {
4572 term->paste_hold = 1;
c9def1b8 4573 return;
4574 }
4575 }
887035a5 4576 sfree(term->paste_buffer);
4577 term->paste_buffer = NULL;
4578 term->paste_len = 0;
c9def1b8 4579}
4580
887035a5 4581static void deselect(Terminal *term)
32874aea 4582{
887035a5 4583 term->selstate = NO_SELECTION;
4584 term->selstart.x = term->selstart.y = term->selend.x = term->selend.y = 0;
374330e2 4585}
4586
887035a5 4587void term_deselect(Terminal *term)
32874aea 4588{
887035a5 4589 deselect(term);
4590 term_update(term);
374330e2 4591}
fe50e814 4592
887035a5 4593int term_ldisc(Terminal *term, int option)
32874aea 4594{
4595 if (option == LD_ECHO)
887035a5 4596 return term->term_echoing;
32874aea 4597 if (option == LD_EDIT)
887035a5 4598 return term->term_editing;
0965bee0 4599 return FALSE;
4600}
4601
fe50e814 4602/*
4603 * from_backend(), to get data from the backend for the terminal.
4604 */
9fab77dc 4605int from_backend(void *vterm, int is_stderr, const char *data, int len)
32874aea 4606{
887035a5 4607 Terminal *term = (Terminal *)vterm;
4608
2b0c045b 4609 assert(len > 0);
4610
887035a5 4611 bufchain_add(&term->inbuf, data, len);
5471d09a 4612
4613 /*
a748a096 4614 * term_out() always completely empties inbuf. Therefore,
4615 * there's no reason at all to return anything other than zero
4616 * from this function, because there _can't_ be a question of
4617 * the remote side needing to wait until term_out() has cleared
4618 * a backlog.
4619 *
5471d09a 4620 * This is a slightly suboptimal way to deal with SSH2 - in
4621 * principle, the window mechanism would allow us to continue
4622 * to accept data on forwarded ports and X connections even
4623 * while the terminal processing was going slowly - but we
4624 * can't do the 100% right thing without moving the terminal
4625 * processing into a separate thread, and that might hurt
4626 * portability. So we manage stdout buffering the old SSH1 way:
4627 * if the terminal processing goes slowly, the whole SSH
4628 * connection stops accepting data until it's ready.
a748a096 4629 *
5471d09a 4630 * In practice, I can't imagine this causing serious trouble.
4631 */
4632 return 0;
fe50e814 4633}
a8327734 4634
4635void term_provide_logctx(Terminal *term, void *logctx)
4636{
4637 term->logctx = logctx;
4638}
Local modifications for Simon Tatham's `PuTTY' SSH client and terminal emulator