374330e2 |
1 | #include <windows.h> |
2 | |
3 | #include <stdio.h> |
4 | #include <stdlib.h> |
49bad831 |
5 | #include <ctype.h> |
374330e2 |
6 | |
7 | #include "putty.h" |
8 | |
c9def1b8 |
9 | #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */ |
e14a5a13 |
10 | #define CL_VT100 0x0002 /* VT100 */ |
11 | #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */ |
12 | #define CL_VT102 0x0008 /* VT102 */ |
13 | #define CL_VT220 0x0010 /* VT220 */ |
14 | #define CL_VT320 0x0020 /* VT320 */ |
15 | #define CL_VT420 0x0040 /* VT420 */ |
16 | #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */ |
17 | #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */ |
c9def1b8 |
18 | #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */ |
19 | #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */ |
20 | #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */ |
e14a5a13 |
21 | |
c9def1b8 |
22 | #define TM_VT100 (CL_ANSIMIN|CL_VT100) |
23 | #define TM_VT100AVO (TM_VT100|CL_VT100AVO) |
24 | #define TM_VT102 (TM_VT100AVO|CL_VT102) |
25 | #define TM_VT220 (TM_VT102|CL_VT220) |
26 | #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320) |
27 | #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI) |
28 | |
29 | #define TM_PUTTY (0xFFFF) |
e14a5a13 |
30 | |
31 | #define compatibility(x) \ |
32 | if ( ((CL_##x)&compatibility_level) == 0 ) { \ |
33 | termstate=TOPLEVEL; \ |
34 | break; \ |
35 | } |
c9def1b8 |
36 | #define compatibility2(x,y) \ |
37 | if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \ |
38 | termstate=TOPLEVEL; \ |
39 | break; \ |
40 | } |
e14a5a13 |
41 | |
42 | #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 ) |
43 | |
44 | static int compatibility_level = TM_PUTTY; |
45 | |
46 | |
374330e2 |
47 | static unsigned long *text; /* buffer of text on terminal screen */ |
48 | static unsigned long *scrtop; /* top of working screen */ |
49 | static unsigned long *disptop; /* top of displayed screen */ |
50 | static unsigned long *sbtop; /* top of scrollback */ |
c9def1b8 |
51 | static unsigned long *sbbot; /* furthest extent of scrollback */ |
374330e2 |
52 | static unsigned long *cpos; /* cursor position (convenience) */ |
53 | static unsigned long *disptext; /* buffer of text on real screen */ |
54 | static unsigned long *wanttext; /* buffer of text we want on screen */ |
55 | static unsigned long *alttext; /* buffer of text on alt. screen */ |
56 | |
57 | static unsigned char *selspace; /* buffer for building selections in */ |
58 | |
59 | #define TSIZE (sizeof(*text)) |
60 | #define fix_cpos do { cpos = scrtop + curs_y * (cols+1) + curs_x; } while(0) |
61 | |
62 | static unsigned long curr_attr, save_attr; |
e14a5a13 |
63 | static unsigned long erase_char = ERASE_CHAR; |
374330e2 |
64 | |
65 | static int curs_x, curs_y; /* cursor */ |
66 | static int save_x, save_y; /* saved cursor position */ |
67 | static int marg_t, marg_b; /* scroll margins */ |
68 | static int dec_om; /* DEC origin mode flag */ |
69 | static int wrap, wrapnext; /* wrap flags */ |
70 | static int insert; /* insert-mode flag */ |
71 | static int cset; /* 0 or 1: which char set */ |
72 | static int save_cset, save_csattr; /* saved with cursor position */ |
73 | static int rvideo; /* global reverse video flag */ |
e14a5a13 |
74 | static int cursor_on; /* cursor enabled flag */ |
75 | static int reset_132; /* Flag ESC c resets to 80 cols */ |
76 | static int use_bce; /* Use Background coloured erase */ |
77 | static int blinker; /* When blinking is the cursor on ? */ |
c9def1b8 |
78 | static int tblinker; /* When the blinking text is on */ |
79 | static int blink_is_real; /* Actually blink blinking text */ |
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80 | |
81 | static unsigned long cset_attr[2]; |
82 | |
83 | /* |
84 | * Saved settings on the alternate screen. |
85 | */ |
86 | static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset; |
87 | static int alt_t, alt_b; |
88 | static int alt_which; |
89 | |
90 | #define ARGS_MAX 32 /* max # of esc sequence arguments */ |
064916ea |
91 | #define ARG_DEFAULT 0 /* if an arg isn't specified */ |
374330e2 |
92 | #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) |
93 | static int esc_args[ARGS_MAX]; |
94 | static int esc_nargs; |
95 | static int esc_query; |
8b811b12 |
96 | #define ANSI(x,y) ((x)+((y)<<8)) |
97 | #define ANSI_QUE(x) ANSI(x,TRUE) |
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98 | |
99 | #define OSC_STR_MAX 2048 |
100 | static int osc_strlen; |
101 | static char osc_string[OSC_STR_MAX+1]; |
102 | static int osc_w; |
103 | |
c9def1b8 |
104 | static char id_string[1024] = "\033[?6c"; |
105 | |
374330e2 |
106 | static unsigned char *tabs; |
107 | |
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108 | static enum { |
cabfd08c |
109 | TOPLEVEL, |
110 | SEEN_ESC, |
111 | SEEN_CSI, |
112 | SEEN_OSC, |
113 | SEEN_OSC_W, |
114 | |
115 | DO_CTRLS, |
116 | |
117 | IGNORE_NEXT, |
118 | SET_GL, SET_GR, |
119 | SEEN_OSC_P, |
120 | OSC_STRING, OSC_MAYBE_ST, |
e14a5a13 |
121 | SEEN_ESCHASH, |
122 | VT52_ESC, |
123 | VT52_Y1, |
124 | VT52_Y2 |
374330e2 |
125 | } termstate; |
126 | |
127 | static enum { |
128 | NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED |
129 | } selstate; |
130 | static enum { |
131 | SM_CHAR, SM_WORD, SM_LINE |
132 | } selmode; |
133 | static unsigned long *selstart, *selend, *selanchor; |
134 | |
135 | static short wordness[256] = { |
136 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 01 */ |
137 | 0,1,2,1,1,1,1,1,1,1,1,1,1,2,2,2, 2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1, /* 23 */ |
138 | 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,2, /* 45 */ |
139 | 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1, /* 67 */ |
140 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 89 */ |
141 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* AB */ |
142 | 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* CD */ |
143 | 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* EF */ |
144 | }; |
145 | |
146 | static unsigned char sel_nl[] = SEL_NL; |
c9def1b8 |
147 | static char * paste_buffer = 0; |
148 | static int paste_len, paste_pos, paste_hold; |
374330e2 |
149 | |
150 | /* |
151 | * Internal prototypes. |
152 | */ |
153 | static void do_paint (Context, int); |
154 | static void erase_lots (int, int, int); |
155 | static void swap_screen (int); |
156 | static void update_sbar (void); |
157 | static void deselect (void); |
158 | |
159 | /* |
160 | * Set up power-on settings for the terminal. |
161 | */ |
162 | static void power_on(void) { |
163 | curs_x = curs_y = alt_x = alt_y = save_x = save_y = 0; |
164 | alt_t = marg_t = 0; |
165 | if (rows != -1) |
166 | alt_b = marg_b = rows - 1; |
167 | else |
168 | alt_b = marg_b = 0; |
169 | if (cols != -1) { |
170 | int i; |
171 | for (i = 0; i < cols; i++) |
172 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
173 | } |
174 | alt_om = dec_om = cfg.dec_om; |
175 | alt_wnext = wrapnext = alt_ins = insert = FALSE; |
176 | alt_wrap = wrap = cfg.wrap_mode; |
177 | alt_cset = cset = 0; |
178 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
179 | rvideo = 0; |
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180 | cursor_on = 1; |
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181 | save_attr = curr_attr = ATTR_DEFAULT; |
182 | app_cursor_keys = cfg.app_cursor; |
183 | app_keypad_keys = cfg.app_keypad; |
c9def1b8 |
184 | use_bce = cfg.bce; |
185 | blink_is_real = cfg.blinktext; |
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186 | erase_char = ERASE_CHAR; |
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187 | alt_which = 0; |
188 | { |
189 | int i; |
190 | for (i = 0; i < 256; i++) |
191 | wordness[i] = cfg.wordness[i]; |
192 | } |
193 | if (text) { |
194 | swap_screen (1); |
195 | erase_lots (FALSE, TRUE, TRUE); |
196 | swap_screen (0); |
197 | erase_lots (FALSE, TRUE, TRUE); |
198 | } |
199 | } |
200 | |
201 | /* |
202 | * Force a screen update. |
203 | */ |
204 | void term_update(void) { |
205 | Context ctx; |
206 | ctx = get_ctx(); |
207 | if (ctx) { |
c9def1b8 |
208 | if ( (seen_key_event && (cfg.scroll_on_key)) || |
a094ae43 |
209 | (seen_disp_event && (cfg.scroll_on_disp)) ) { |
cabfd08c |
210 | disptop = scrtop; |
211 | seen_disp_event = seen_key_event = 0; |
8ac3e544 |
212 | update_sbar(); |
cabfd08c |
213 | } |
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214 | do_paint (ctx, TRUE); |
ec8679e9 |
215 | sys_cursor(curs_x, curs_y + (scrtop - disptop) / (cols+1)); |
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216 | free_ctx (ctx); |
374330e2 |
217 | } |
218 | } |
219 | |
220 | /* |
221 | * Same as power_on(), but an external function. |
222 | */ |
223 | void term_pwron(void) { |
224 | power_on(); |
225 | fix_cpos; |
226 | disptop = scrtop; |
227 | deselect(); |
228 | term_update(); |
229 | } |
230 | |
231 | /* |
232 | * Clear the scrollback. |
233 | */ |
234 | void term_clrsb(void) { |
235 | disptop = sbtop = scrtop; |
236 | update_sbar(); |
237 | } |
238 | |
239 | /* |
240 | * Initialise the terminal. |
241 | */ |
242 | void term_init(void) { |
c9def1b8 |
243 | text = sbtop = sbbot = scrtop = disptop = cpos = NULL; |
374330e2 |
244 | disptext = wanttext = NULL; |
245 | tabs = NULL; |
246 | selspace = NULL; |
247 | deselect(); |
248 | rows = cols = -1; |
374330e2 |
249 | power_on(); |
250 | } |
251 | |
252 | /* |
253 | * Set up the terminal for a given size. |
254 | */ |
255 | void term_size(int newrows, int newcols, int newsavelines) { |
256 | unsigned long *newtext, *newdisp, *newwant, *newalt; |
257 | int i, j, crows, ccols; |
258 | |
d6832394 |
259 | int save_alt_which = alt_which; |
260 | |
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261 | if (newrows == rows && newcols == cols && newsavelines == savelines) |
262 | return; /* nothing to do */ |
263 | |
d6832394 |
264 | deselect(); |
265 | swap_screen(0); |
266 | |
374330e2 |
267 | alt_t = marg_t = 0; |
268 | alt_b = marg_b = newrows - 1; |
269 | |
270 | newtext = smalloc ((newrows+newsavelines)*(newcols+1)*TSIZE); |
c9def1b8 |
271 | sbbot = newtext + newsavelines*(newcols+1); |
374330e2 |
272 | for (i=0; i<(newrows+newsavelines)*(newcols+1); i++) |
c9def1b8 |
273 | newtext[i] = erase_char; |
374330e2 |
274 | if (rows != -1) { |
275 | crows = rows + (scrtop - sbtop) / (cols+1); |
276 | if (crows > newrows+newsavelines) |
277 | crows = newrows+newsavelines; |
c9def1b8 |
278 | if (newrows>crows) |
279 | disptop = newtext; |
280 | else |
281 | disptop = newtext + (crows-newrows)*(newcols+1); |
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282 | ccols = (cols < newcols ? cols : newcols); |
283 | for (i=0; i<crows; i++) { |
c9def1b8 |
284 | int oldidx = (rows - crows + i) * (cols+1); |
285 | int newidx = (newrows - crows + i) * (newcols+1); |
286 | |
374330e2 |
287 | for (j=0; j<ccols; j++) |
c9def1b8 |
288 | disptop[newidx+j] = scrtop[oldidx+j]; |
289 | disptop[newidx+newcols] = |
290 | (cols == newcols ? scrtop[oldidx+cols] |
291 | : (scrtop[oldidx+cols]&LATTR_MODE)); |
374330e2 |
292 | } |
c9def1b8 |
293 | sbtop = newtext; |
294 | } else { |
295 | sbtop = disptop = newtext; |
296 | } |
374330e2 |
297 | scrtop = disptop; |
298 | sfree (text); |
299 | text = newtext; |
300 | |
301 | newdisp = smalloc (newrows*(newcols+1)*TSIZE); |
302 | for (i=0; i<newrows*(newcols+1); i++) |
303 | newdisp[i] = ATTR_INVALID; |
304 | sfree (disptext); |
305 | disptext = newdisp; |
306 | |
307 | newwant = smalloc (newrows*(newcols+1)*TSIZE); |
308 | for (i=0; i<newrows*(newcols+1); i++) |
309 | newwant[i] = ATTR_INVALID; |
310 | sfree (wanttext); |
311 | wanttext = newwant; |
312 | |
313 | newalt = smalloc (newrows*(newcols+1)*TSIZE); |
314 | for (i=0; i<newrows*(newcols+1); i++) |
e14a5a13 |
315 | newalt[i] = erase_char; |
374330e2 |
316 | sfree (alttext); |
317 | alttext = newalt; |
318 | |
319 | sfree (selspace); |
320 | selspace = smalloc ( (newrows+newsavelines) * (newcols+sizeof(sel_nl)) ); |
321 | |
322 | tabs = srealloc (tabs, newcols*sizeof(*tabs)); |
323 | { |
324 | int i; |
325 | for (i = (cols > 0 ? cols : 0); i < newcols; i++) |
326 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
327 | } |
328 | |
329 | if (rows > 0) |
330 | curs_y += newrows - rows; |
331 | if (curs_y < 0) |
332 | curs_y = 0; |
333 | if (curs_y >= newrows) |
334 | curs_y = newrows-1; |
335 | if (curs_x >= newcols) |
336 | curs_x = newcols-1; |
337 | alt_x = alt_y = 0; |
338 | wrapnext = alt_wnext = FALSE; |
339 | |
340 | rows = newrows; |
341 | cols = newcols; |
342 | savelines = newsavelines; |
343 | fix_cpos; |
344 | |
d6832394 |
345 | swap_screen(save_alt_which); |
346 | |
374330e2 |
347 | update_sbar(); |
348 | term_update(); |
349 | } |
350 | |
351 | /* |
352 | * Swap screens. |
353 | */ |
354 | static void swap_screen (int which) { |
355 | int t; |
356 | unsigned long tt; |
357 | |
358 | if (which == alt_which) |
359 | return; |
360 | |
361 | alt_which = which; |
362 | |
363 | for (t=0; t<rows*(cols+1); t++) { |
364 | tt = scrtop[t]; scrtop[t] = alttext[t]; alttext[t] = tt; |
365 | } |
366 | |
367 | t = curs_x; curs_x = alt_x; alt_x = t; |
368 | t = curs_y; curs_y = alt_y; alt_y = t; |
369 | t = marg_t; marg_t = alt_t; alt_t = t; |
370 | t = marg_b; marg_b = alt_b; alt_b = t; |
371 | t = dec_om; dec_om = alt_om; alt_om = t; |
372 | t = wrap; wrap = alt_wrap; alt_wrap = t; |
373 | t = wrapnext; wrapnext = alt_wnext; alt_wnext = t; |
374 | t = insert; insert = alt_ins; alt_ins = t; |
375 | t = cset; cset = alt_cset; alt_cset = t; |
376 | |
377 | fix_cpos; |
378 | } |
379 | |
380 | /* |
374330e2 |
381 | * Update the scroll bar. |
382 | */ |
383 | static void update_sbar(void) { |
384 | int min; |
385 | |
386 | min = (sbtop - text) / (cols+1); |
387 | set_sbar ((scrtop - text) / (cols+1) + rows - min, |
388 | (disptop - text) / (cols+1) - min, |
389 | rows); |
390 | } |
391 | |
392 | /* |
393 | * Check whether the region bounded by the two pointers intersects |
394 | * the scroll region, and de-select the on-screen selection if so. |
395 | */ |
396 | static void check_selection (unsigned long *from, unsigned long *to) { |
397 | if (from < selend && selstart < to) |
398 | deselect(); |
399 | } |
400 | |
401 | /* |
402 | * Scroll the screen. (`lines' is +ve for scrolling forward, -ve |
403 | * for backward.) `sb' is TRUE if the scrolling is permitted to |
404 | * affect the scrollback buffer. |
405 | */ |
406 | static void scroll (int topline, int botline, int lines, int sb) { |
407 | unsigned long *scroll_top; |
c9def1b8 |
408 | unsigned long *newscr; |
374330e2 |
409 | int scroll_size, size, i; |
c9def1b8 |
410 | int scrtop_is_disptop = (scrtop==disptop); |
411 | static int recursive = 0; |
412 | |
413 | /* Only scroll more than the window if we're doing a 10% scroll */ |
414 | if (!recursive && lines > botline - topline + 1) |
415 | lines = botline - topline + 1; |
374330e2 |
416 | |
417 | scroll_top = scrtop + topline*(cols+1); |
418 | size = (lines < 0 ? -lines : lines) * (cols+1); |
419 | scroll_size = (botline - topline + 1) * (cols+1) - size; |
420 | |
cabfd08c |
421 | if (lines > 0 && topline == 0 && alt_which == 0 && sb) { |
374330e2 |
422 | /* |
cabfd08c |
423 | * Since we're going to scroll the top line and we're on the |
c9def1b8 |
424 | * scrolling screen let's also effect the scrollback buffer. |
425 | * |
426 | * This is normally done by moving the position the screen |
427 | * painter reads from to reduce the amount of memory copying |
428 | * required. |
374330e2 |
429 | */ |
c9def1b8 |
430 | if (scroll_size >= 0 && !recursive) { |
431 | newscr = scrtop + lines * (cols+1); |
432 | |
433 | if (newscr > sbbot && botline == rows-1) { |
434 | /* We've hit the bottom of memory, so we have to do a |
435 | * physical scroll. But instead of just 1 line do it |
436 | * by 10% of the available memory. |
437 | * |
438 | * If the scroll region isn't the whole screen then we can't |
439 | * do this as it stands. We would need to recover the bottom |
440 | * of the screen from the scroll buffer after being sure that |
441 | * it doesn't get deleted. |
442 | */ |
443 | |
444 | i = (rows+savelines)/10; |
445 | |
446 | /* Make it simple and ensure safe recursion */ |
447 | if ( i<savelines-1) { |
448 | recursive ++; |
449 | scroll(topline, botline, i, sb); |
450 | recursive --; |
451 | |
452 | newscr = scrtop - i * (cols+1); |
453 | if (scrtop_is_disptop) disptop = newscr; |
454 | scrtop = newscr; |
455 | } |
456 | |
457 | newscr = scrtop + lines * (cols+1); |
458 | } |
459 | |
460 | if (newscr <= sbbot) { |
461 | if (scrtop_is_disptop) disptop = newscr; |
462 | scrtop = newscr; |
463 | |
464 | if (botline == rows-1 ) |
465 | for (i = 0; i < size; i++) |
466 | scrtop[i+scroll_size] = erase_char; |
467 | |
468 | update_sbar(); |
469 | fix_cpos; |
470 | |
471 | if (botline != rows-1) { |
472 | /* This fastscroll only works for full window scrolls. |
473 | * If the caller wanted a partial one we have to reverse |
474 | * scroll the bottom of the screen. |
475 | */ |
476 | scroll(botline-lines+1, rows-1, -lines, 0); |
477 | } |
478 | return ; |
479 | } |
480 | |
481 | /* If we can't scroll by memory remapping do it physically. |
482 | * But rather than expensivly doing the scroll buffer just |
483 | * scroll the screen. All it means is that sometimes we choose |
484 | * to not add lines from a scroll region to the scroll buffer. |
485 | */ |
486 | |
487 | if (savelines <= 400) { |
488 | sbtop -= lines * (cols+1); |
489 | if (sbtop < text) |
490 | sbtop = text; |
491 | scroll_size += scroll_top - sbtop; |
492 | scroll_top = sbtop; |
493 | |
494 | update_sbar(); |
495 | } |
496 | } else { |
497 | /* Ho hum, expensive scroll required. */ |
498 | |
499 | sbtop -= lines * (cols+1); |
500 | if (sbtop < text) |
501 | sbtop = text; |
502 | scroll_size += scroll_top - sbtop; |
503 | scroll_top = sbtop; |
504 | |
505 | update_sbar(); |
506 | } |
374330e2 |
507 | } |
508 | |
509 | if (scroll_size < 0) { |
510 | size += scroll_size; |
511 | scroll_size = 0; |
512 | } |
513 | |
514 | if (lines > 0) { |
515 | if (scroll_size) |
516 | memmove (scroll_top, scroll_top + size, scroll_size*TSIZE); |
517 | for (i = 0; i < size; i++) |
e14a5a13 |
518 | scroll_top[i+scroll_size] = erase_char; |
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519 | if (selstart > scroll_top && |
520 | selstart < scroll_top + size + scroll_size) { |
521 | selstart -= size; |
522 | if (selstart < scroll_top) |
523 | selstart = scroll_top; |
524 | } |
525 | if (selend > scroll_top && |
526 | selend < scroll_top + size + scroll_size) { |
527 | selend -= size; |
528 | if (selend < scroll_top) |
529 | selend = scroll_top; |
530 | } |
c9def1b8 |
531 | if (scrtop_is_disptop) |
532 | disptop = scrtop; |
533 | else |
534 | if (disptop > scroll_top && |
535 | disptop < scroll_top + size + scroll_size) { |
536 | disptop -= size; |
537 | if (disptop < scroll_top) |
538 | disptop = scroll_top; |
539 | } |
374330e2 |
540 | } else { |
541 | if (scroll_size) |
542 | memmove (scroll_top + size, scroll_top, scroll_size*TSIZE); |
543 | for (i = 0; i < size; i++) |
e14a5a13 |
544 | scroll_top[i] = erase_char; |
374330e2 |
545 | if (selstart > scroll_top && |
546 | selstart < scroll_top + size + scroll_size) { |
547 | selstart += size; |
548 | if (selstart > scroll_top + size + scroll_size) |
549 | selstart = scroll_top + size + scroll_size; |
550 | } |
551 | if (selend > scroll_top && |
552 | selend < scroll_top + size + scroll_size) { |
553 | selend += size; |
554 | if (selend > scroll_top + size + scroll_size) |
555 | selend = scroll_top + size + scroll_size; |
556 | } |
c9def1b8 |
557 | if (scrtop_is_disptop) |
558 | disptop = scrtop; |
559 | else if (disptop > scroll_top && |
560 | disptop < scroll_top + size + scroll_size) { |
561 | disptop += size; |
562 | if (disptop > scroll_top + size + scroll_size) |
563 | disptop = scroll_top + size + scroll_size; |
564 | } |
374330e2 |
565 | } |
374330e2 |
566 | } |
567 | |
568 | /* |
569 | * Move the cursor to a given position, clipping at boundaries. We |
570 | * may or may not want to clip at the scroll margin: marg_clip is 0 |
571 | * not to, 1 to disallow _passing_ the margins, and 2 to disallow |
572 | * even _being_ outside the margins. |
573 | */ |
574 | static void move (int x, int y, int marg_clip) { |
575 | if (x < 0) |
576 | x = 0; |
577 | if (x >= cols) |
578 | x = cols-1; |
579 | if (marg_clip) { |
580 | if ((curs_y >= marg_t || marg_clip == 2) && y < marg_t) |
581 | y = marg_t; |
582 | if ((curs_y <= marg_b || marg_clip == 2) && y > marg_b) |
583 | y = marg_b; |
584 | } |
585 | if (y < 0) |
586 | y = 0; |
587 | if (y >= rows) |
588 | y = rows-1; |
589 | curs_x = x; |
590 | curs_y = y; |
591 | fix_cpos; |
592 | wrapnext = FALSE; |
593 | } |
594 | |
595 | /* |
596 | * Save or restore the cursor and SGR mode. |
597 | */ |
598 | static void save_cursor(int save) { |
599 | if (save) { |
600 | save_x = curs_x; |
601 | save_y = curs_y; |
602 | save_attr = curr_attr; |
603 | save_cset = cset; |
604 | save_csattr = cset_attr[cset]; |
605 | } else { |
606 | curs_x = save_x; |
607 | curs_y = save_y; |
c9def1b8 |
608 | /* Make sure the window hasn't shrunk since the save */ |
609 | if (curs_x >= cols) curs_x = cols-1; |
610 | if (curs_y >= rows) curs_y = rows-1; |
611 | |
374330e2 |
612 | curr_attr = save_attr; |
613 | cset = save_cset; |
614 | cset_attr[cset] = save_csattr; |
615 | fix_cpos; |
e14a5a13 |
616 | if (use_bce) erase_char = (' ' |(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
374330e2 |
617 | } |
618 | } |
619 | |
620 | /* |
621 | * Erase a large portion of the screen: the whole screen, or the |
622 | * whole line, or parts thereof. |
623 | */ |
624 | static void erase_lots (int line_only, int from_begin, int to_end) { |
625 | unsigned long *startpos, *endpos; |
626 | |
627 | if (line_only) { |
628 | startpos = cpos - curs_x; |
c9def1b8 |
629 | endpos = startpos + cols; |
630 | /* I've removed the +1 so that the Wide screen stuff is not |
631 | * removed when it shouldn't be. |
632 | */ |
374330e2 |
633 | } else { |
634 | startpos = scrtop; |
635 | endpos = startpos + rows * (cols+1); |
636 | } |
637 | if (!from_begin) |
638 | startpos = cpos; |
639 | if (!to_end) |
e14a5a13 |
640 | endpos = cpos+1; |
374330e2 |
641 | check_selection (startpos, endpos); |
e14a5a13 |
642 | |
643 | /* Clear screen also forces a full window redraw, just in case. */ |
644 | if (startpos == scrtop && endpos == scrtop + rows * (cols+1)) |
645 | term_invalidate(); |
646 | |
374330e2 |
647 | while (startpos < endpos) |
e14a5a13 |
648 | *startpos++ = erase_char; |
374330e2 |
649 | } |
650 | |
651 | /* |
652 | * Insert or delete characters within the current line. n is +ve if |
653 | * insertion is desired, and -ve for deletion. |
654 | */ |
655 | static void insch (int n) { |
656 | int dir = (n < 0 ? -1 : +1); |
657 | int m; |
658 | |
659 | n = (n < 0 ? -n : n); |
660 | if (n > cols - curs_x) |
661 | n = cols - curs_x; |
662 | m = cols - curs_x - n; |
663 | check_selection (cpos, cpos+n); |
664 | if (dir < 0) { |
665 | memmove (cpos, cpos+n, m*TSIZE); |
666 | while (n--) |
e14a5a13 |
667 | cpos[m++] = erase_char; |
374330e2 |
668 | } else { |
669 | memmove (cpos+n, cpos, m*TSIZE); |
670 | while (n--) |
e14a5a13 |
671 | cpos[n] = erase_char; |
374330e2 |
672 | } |
673 | } |
674 | |
675 | /* |
676 | * Toggle terminal mode `mode' to state `state'. (`query' indicates |
677 | * whether the mode is a DEC private one or a normal one.) |
678 | */ |
679 | static void toggle_mode (int mode, int query, int state) { |
680 | if (query) switch (mode) { |
681 | case 1: /* application cursor keys */ |
682 | app_cursor_keys = state; |
683 | break; |
e14a5a13 |
684 | case 2: /* VT52 mode */ |
685 | vt52_mode = !state; |
686 | break; |
374330e2 |
687 | case 3: /* 80/132 columns */ |
688 | deselect(); |
e14a5a13 |
689 | request_resize (state ? 132 : 80, rows, 1); |
690 | reset_132 = state; |
374330e2 |
691 | break; |
692 | case 5: /* reverse video */ |
693 | rvideo = state; |
cabfd08c |
694 | seen_disp_event = TRUE; |
e14a5a13 |
695 | if (state) term_update(); |
374330e2 |
696 | break; |
697 | case 6: /* DEC origin mode */ |
698 | dec_om = state; |
699 | break; |
700 | case 7: /* auto wrap */ |
701 | wrap = state; |
702 | break; |
c9def1b8 |
703 | case 8: /* auto key repeat */ |
704 | repeat_off = !state; |
705 | break; |
e14a5a13 |
706 | case 25: /* enable/disable cursor */ |
ec55b220 |
707 | compatibility2(OTHER,VT220); |
e14a5a13 |
708 | cursor_on = state; |
709 | seen_disp_event = TRUE; |
710 | break; |
374330e2 |
711 | case 47: /* alternate screen */ |
e14a5a13 |
712 | compatibility(OTHER); |
374330e2 |
713 | deselect(); |
714 | swap_screen (state); |
715 | disptop = scrtop; |
716 | break; |
717 | } else switch (mode) { |
718 | case 4: /* set insert mode */ |
e14a5a13 |
719 | compatibility(VT102); |
374330e2 |
720 | insert = state; |
721 | break; |
e14a5a13 |
722 | case 12: /* set echo mode */ |
723 | /* |
724 | * This may be very good in smcup and rmcup (or smkx & rmkx) if you |
725 | * have a long RTT and the telnet client/daemon doesn't understand |
726 | * linemode. |
727 | * |
728 | * DONT send TS_RECHO/TS_LECHO; the telnet daemon tries to fix the |
729 | * tty and _really_ confuses some programs. |
730 | */ |
ec55b220 |
731 | compatibility2(OTHER,VT220); |
e14a5a13 |
732 | ldisc = (state? &ldisc_simple : &ldisc_term); |
733 | break; |
c9def1b8 |
734 | case 20: /* Return sends ... */ |
735 | cr_lf_return = state; |
736 | break; |
374330e2 |
737 | } |
738 | } |
739 | |
740 | /* |
741 | * Process an OSC sequence: set window title or icon name. |
742 | */ |
743 | static void do_osc(void) { |
744 | if (osc_w) { |
745 | while (osc_strlen--) |
746 | wordness[(unsigned char)osc_string[osc_strlen]] = esc_args[0]; |
747 | } else { |
748 | osc_string[osc_strlen] = '\0'; |
749 | switch (esc_args[0]) { |
750 | case 0: |
751 | case 1: |
752 | set_icon (osc_string); |
753 | if (esc_args[0] == 1) |
754 | break; |
755 | /* fall through: parameter 0 means set both */ |
756 | case 2: |
757 | case 21: |
758 | set_title (osc_string); |
759 | break; |
760 | } |
761 | } |
762 | } |
763 | |
764 | /* |
765 | * Remove everything currently in `inbuf' and stick it up on the |
766 | * in-memory display. There's a big state machine in here to |
767 | * process escape sequences... |
768 | */ |
769 | void term_out(void) { |
c9def1b8 |
770 | int c, inbuf_reap; |
771 | |
772 | static int beep_overload = 0; |
773 | int beep_count = 0; |
774 | |
775 | for(inbuf_reap = 0; inbuf_reap < inbuf_head; inbuf_reap++) |
776 | { |
777 | c = inbuf[inbuf_reap]; |
374330e2 |
778 | |
c9def1b8 |
779 | /* |
5fd04f07 |
780 | * Optionally log the session traffic to a file. Useful for |
781 | * debugging and possibly also useful for actual logging. |
782 | */ |
783 | if (logfile) { |
374330e2 |
784 | static FILE *fp = NULL; |
5fd04f07 |
785 | if (!fp) fp = fopen(logfile, "wb"); |
374330e2 |
786 | if (fp) fputc (c, fp); |
787 | } |
e14a5a13 |
788 | /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even |
789 | * be able to display 8-bit characters, but I'll let that go 'cause |
790 | * of i18n. |
791 | */ |
c9def1b8 |
792 | if( ( (c&0x60) == 0 || c == '\177') && |
793 | termstate < DO_CTRLS && |
e14a5a13 |
794 | ( (c&0x80) == 0 || has_compat(VT220))) { |
374330e2 |
795 | switch (c) { |
796 | case '\005': /* terminal type query */ |
e14a5a13 |
797 | /* Strictly speaking this is VT100 but a VT100 defaults to |
798 | * no response. Other terminals respond at their option. |
799 | * |
800 | * Don't put a CR in the default string as this tends to |
801 | * upset some weird software. |
802 | * |
803 | * An xterm returns "xterm" (5 characters) |
804 | */ |
805 | compatibility(OTHER); |
806 | ldisc->send ("PuTTY", 5); |
374330e2 |
807 | break; |
808 | case '\007': |
c9def1b8 |
809 | beep_count++; |
810 | if(beep_count>6) beep_overload=1; |
374330e2 |
811 | disptop = scrtop; |
374330e2 |
812 | break; |
813 | case '\b': |
c9def1b8 |
814 | if (curs_x == 0 && curs_y == 0) |
815 | ; |
816 | else if (curs_x == 0 && curs_y > 0) |
374330e2 |
817 | curs_x = cols-1, curs_y--; |
818 | else if (wrapnext) |
819 | wrapnext = FALSE; |
820 | else |
821 | curs_x--; |
822 | fix_cpos; |
cabfd08c |
823 | seen_disp_event = TRUE; |
374330e2 |
824 | break; |
825 | case '\016': |
e14a5a13 |
826 | compatibility(VT100); |
374330e2 |
827 | cset = 1; |
828 | break; |
829 | case '\017': |
e14a5a13 |
830 | compatibility(VT100); |
374330e2 |
831 | cset = 0; |
832 | break; |
833 | case '\033': |
e14a5a13 |
834 | if (vt52_mode) |
835 | termstate = VT52_ESC; |
836 | else { |
837 | compatibility(ANSIMIN); |
838 | termstate = SEEN_ESC; |
839 | } |
374330e2 |
840 | break; |
841 | case 0233: |
e14a5a13 |
842 | compatibility(VT220); |
374330e2 |
843 | termstate = SEEN_CSI; |
844 | esc_nargs = 1; |
845 | esc_args[0] = ARG_DEFAULT; |
846 | esc_query = FALSE; |
847 | break; |
848 | case 0235: |
e14a5a13 |
849 | compatibility(VT220); |
374330e2 |
850 | termstate = SEEN_OSC; |
851 | esc_args[0] = 0; |
852 | break; |
853 | case '\r': |
854 | curs_x = 0; |
855 | wrapnext = FALSE; |
856 | fix_cpos; |
cabfd08c |
857 | seen_disp_event = TRUE; |
c9def1b8 |
858 | paste_hold = 0; |
374330e2 |
859 | break; |
860 | case '\013': |
861 | case '\014': |
e14a5a13 |
862 | compatibility(VT100); |
374330e2 |
863 | case '\n': |
864 | if (curs_y == marg_b) |
865 | scroll (marg_t, marg_b, 1, TRUE); |
866 | else if (curs_y < rows-1) |
867 | curs_y++; |
cabfd08c |
868 | if (cfg.lfhascr) |
869 | curs_x = 0; |
374330e2 |
870 | fix_cpos; |
871 | wrapnext = FALSE; |
cabfd08c |
872 | seen_disp_event = 1; |
c9def1b8 |
873 | paste_hold = 0; |
374330e2 |
874 | break; |
875 | case '\t': |
374330e2 |
876 | { |
877 | unsigned long *old_cpos = cpos; |
c9def1b8 |
878 | unsigned long *p = scrtop + curs_y * (cols+1) + cols; |
879 | |
880 | do { |
881 | curs_x++; |
882 | } while (curs_x < cols-1 && !tabs[curs_x]); |
883 | |
884 | if ((*p & LATTR_MODE) != LATTR_NORM) |
885 | { |
886 | if (curs_x >= cols/2) |
887 | curs_x = cols/2-1; |
888 | } |
889 | else |
890 | { |
891 | if (curs_x >= cols) |
892 | curs_x = cols-1; |
893 | } |
894 | |
374330e2 |
895 | fix_cpos; |
896 | check_selection (old_cpos, cpos); |
897 | } |
cabfd08c |
898 | seen_disp_event = TRUE; |
374330e2 |
899 | break; |
ec55b220 |
900 | case '\177': /* Destructive backspace |
901 | This does nothing on a real VT100 */ |
902 | compatibility(OTHER); |
903 | if (curs_x && !wrapnext) curs_x--; |
904 | wrapnext = FALSE; |
905 | fix_cpos; |
906 | *cpos = (' ' | curr_attr | ATTR_ASCII); |
907 | break; |
cabfd08c |
908 | } |
909 | } |
910 | else switch (termstate) { |
911 | case TOPLEVEL: |
8b811b12 |
912 | /* Only graphic characters get this far, ctrls are stripped above */ |
913 | if (wrapnext) { |
c9def1b8 |
914 | cpos[1] |= ATTR_WRAPPED; |
8b811b12 |
915 | if (curs_y == marg_b) |
916 | scroll (marg_t, marg_b, 1, TRUE); |
917 | else if (curs_y < rows-1) |
918 | curs_y++; |
919 | curs_x = 0; |
920 | fix_cpos; |
921 | wrapnext = FALSE; |
8b811b12 |
922 | } |
923 | if (insert) |
924 | insch (1); |
e14a5a13 |
925 | if (selstate != NO_SELECTION) |
926 | check_selection (cpos, cpos+1); |
927 | switch (cset_attr[cset]) { |
928 | /* Linedraw characters are different from 'ESC ( B' only |
929 | * for a small range, for ones outside that range make sure |
930 | * we use the same font as well as the same encoding. |
931 | */ |
932 | case ATTR_LINEDRW: |
ec55b220 |
933 | if (c<0x5f || c>0x7F) |
e14a5a13 |
934 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
935 | ATTR_ASCII; |
ec55b220 |
936 | else if (c==0x5F) |
937 | *cpos++ = ' ' | curr_attr | ATTR_ASCII; |
e14a5a13 |
938 | else |
939 | *cpos++ = ((unsigned char)c) | curr_attr | ATTR_LINEDRW; |
940 | break; |
ec55b220 |
941 | case ATTR_GBCHR: |
942 | /* If UK-ASCII, make the '#' a LineDraw Pound */ |
943 | if (c == '#') { |
944 | *cpos++ = '}' | curr_attr | ATTR_LINEDRW; |
945 | break; |
946 | } |
947 | /*FALLTHROUGH*/ |
e14a5a13 |
948 | default: |
949 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
950 | (c <= 0x7F ? cset_attr[cset] : ATTR_ASCII); |
951 | break; |
952 | } |
8b811b12 |
953 | curs_x++; |
954 | if (curs_x == cols) { |
955 | cpos--; |
956 | curs_x--; |
957 | wrapnext = wrap; |
374330e2 |
958 | } |
8b811b12 |
959 | seen_disp_event = 1; |
374330e2 |
960 | break; |
cabfd08c |
961 | |
374330e2 |
962 | case IGNORE_NEXT: |
963 | termstate = TOPLEVEL; |
964 | break; |
965 | case OSC_MAYBE_ST: |
966 | /* |
967 | * This state is virtually identical to SEEN_ESC, with the |
968 | * exception that we have an OSC sequence in the pipeline, |
969 | * and _if_ we see a backslash, we process it. |
970 | */ |
971 | if (c == '\\') { |
972 | do_osc(); |
973 | termstate = TOPLEVEL; |
974 | break; |
975 | } |
976 | /* else fall through */ |
977 | case SEEN_ESC: |
978 | termstate = TOPLEVEL; |
979 | switch (c) { |
374330e2 |
980 | case ' ': /* some weird sequence? */ |
e14a5a13 |
981 | compatibility(VT220); |
374330e2 |
982 | termstate = IGNORE_NEXT; |
983 | break; |
984 | case '[': /* enter CSI mode */ |
985 | termstate = SEEN_CSI; |
986 | esc_nargs = 1; |
987 | esc_args[0] = ARG_DEFAULT; |
988 | esc_query = FALSE; |
989 | break; |
990 | case ']': /* xterm escape sequences */ |
e14a5a13 |
991 | /* Compatibility is nasty here, xterm, linux, decterm yuk! */ |
992 | compatibility(OTHER); |
374330e2 |
993 | termstate = SEEN_OSC; |
994 | esc_args[0] = 0; |
995 | break; |
996 | case '(': /* should set GL */ |
e14a5a13 |
997 | compatibility(VT100); |
374330e2 |
998 | termstate = SET_GL; |
999 | break; |
1000 | case ')': /* should set GR */ |
e14a5a13 |
1001 | compatibility(VT100); |
374330e2 |
1002 | termstate = SET_GR; |
1003 | break; |
1004 | case '7': /* save cursor */ |
e14a5a13 |
1005 | compatibility(VT100); |
374330e2 |
1006 | save_cursor (TRUE); |
1007 | break; |
1008 | case '8': /* restore cursor */ |
e14a5a13 |
1009 | compatibility(VT100); |
374330e2 |
1010 | save_cursor (FALSE); |
cabfd08c |
1011 | seen_disp_event = TRUE; |
374330e2 |
1012 | break; |
1013 | case '=': |
e14a5a13 |
1014 | compatibility(VT100); |
374330e2 |
1015 | app_keypad_keys = TRUE; |
1016 | break; |
1017 | case '>': |
e14a5a13 |
1018 | compatibility(VT100); |
374330e2 |
1019 | app_keypad_keys = FALSE; |
1020 | break; |
1021 | case 'D': /* exactly equivalent to LF */ |
e14a5a13 |
1022 | compatibility(VT100); |
374330e2 |
1023 | if (curs_y == marg_b) |
1024 | scroll (marg_t, marg_b, 1, TRUE); |
1025 | else if (curs_y < rows-1) |
1026 | curs_y++; |
1027 | fix_cpos; |
1028 | wrapnext = FALSE; |
cabfd08c |
1029 | seen_disp_event = TRUE; |
374330e2 |
1030 | break; |
1031 | case 'E': /* exactly equivalent to CR-LF */ |
e14a5a13 |
1032 | compatibility(VT100); |
374330e2 |
1033 | curs_x = 0; |
374330e2 |
1034 | if (curs_y == marg_b) |
1035 | scroll (marg_t, marg_b, 1, TRUE); |
1036 | else if (curs_y < rows-1) |
1037 | curs_y++; |
1038 | fix_cpos; |
1039 | wrapnext = FALSE; |
cabfd08c |
1040 | seen_disp_event = TRUE; |
374330e2 |
1041 | break; |
1042 | case 'M': /* reverse index - backwards LF */ |
e14a5a13 |
1043 | compatibility(VT100); |
374330e2 |
1044 | if (curs_y == marg_t) |
1045 | scroll (marg_t, marg_b, -1, TRUE); |
1046 | else if (curs_y > 0) |
1047 | curs_y--; |
1048 | fix_cpos; |
1049 | wrapnext = FALSE; |
cabfd08c |
1050 | seen_disp_event = TRUE; |
374330e2 |
1051 | break; |
1052 | case 'Z': /* terminal type query */ |
e14a5a13 |
1053 | compatibility(VT100); |
c9def1b8 |
1054 | ldisc->send (id_string, strlen(id_string)); |
374330e2 |
1055 | break; |
1056 | case 'c': /* restore power-on settings */ |
e14a5a13 |
1057 | compatibility(VT100); |
374330e2 |
1058 | power_on(); |
e14a5a13 |
1059 | if (reset_132) { |
1060 | request_resize (80, rows, 1); |
1061 | reset_132 = 0; |
1062 | } |
374330e2 |
1063 | fix_cpos; |
1064 | disptop = scrtop; |
cabfd08c |
1065 | seen_disp_event = TRUE; |
374330e2 |
1066 | break; |
1067 | case '#': /* ESC # 8 fills screen with Es :-) */ |
e14a5a13 |
1068 | compatibility(VT100); |
374330e2 |
1069 | termstate = SEEN_ESCHASH; |
1070 | break; |
1071 | case 'H': /* set a tab */ |
e14a5a13 |
1072 | compatibility(VT100); |
374330e2 |
1073 | tabs[curs_x] = TRUE; |
1074 | break; |
1075 | } |
1076 | break; |
1077 | case SEEN_CSI: |
1078 | termstate = TOPLEVEL; /* default */ |
8b811b12 |
1079 | if( isdigit(c) ) |
1080 | { |
374330e2 |
1081 | if (esc_nargs <= ARGS_MAX) { |
1082 | if (esc_args[esc_nargs-1] == ARG_DEFAULT) |
1083 | esc_args[esc_nargs-1] = 0; |
1084 | esc_args[esc_nargs-1] = |
1085 | 10 * esc_args[esc_nargs-1] + c - '0'; |
1086 | } |
1087 | termstate = SEEN_CSI; |
8b811b12 |
1088 | } |
1089 | else if( c == ';' ) |
1090 | { |
374330e2 |
1091 | if (++esc_nargs <= ARGS_MAX) |
1092 | esc_args[esc_nargs-1] = ARG_DEFAULT; |
1093 | termstate = SEEN_CSI; |
8b811b12 |
1094 | } |
1095 | else if( c < '@' ) |
1096 | { |
1097 | if( esc_query ) esc_query = -1; |
1098 | else if( c == '?' ) esc_query = TRUE; |
1099 | else esc_query = c; |
374330e2 |
1100 | termstate = SEEN_CSI; |
8b811b12 |
1101 | } |
1102 | else switch (ANSI(c,esc_query)) { |
374330e2 |
1103 | case 'A': /* move up N lines */ |
1104 | move (curs_x, curs_y - def(esc_args[0], 1), 1); |
cabfd08c |
1105 | seen_disp_event = TRUE; |
374330e2 |
1106 | break; |
e14a5a13 |
1107 | case 'e': /* move down N lines */ |
1108 | compatibility(ANSI); |
1109 | case 'B': |
374330e2 |
1110 | move (curs_x, curs_y + def(esc_args[0], 1), 1); |
cabfd08c |
1111 | seen_disp_event = TRUE; |
374330e2 |
1112 | break; |
e14a5a13 |
1113 | case 'a': /* move right N cols */ |
1114 | compatibility(ANSI); |
1115 | case 'C': |
374330e2 |
1116 | move (curs_x + def(esc_args[0], 1), curs_y, 1); |
cabfd08c |
1117 | seen_disp_event = TRUE; |
374330e2 |
1118 | break; |
1119 | case 'D': /* move left N cols */ |
1120 | move (curs_x - def(esc_args[0], 1), curs_y, 1); |
cabfd08c |
1121 | seen_disp_event = TRUE; |
374330e2 |
1122 | break; |
1123 | case 'E': /* move down N lines and CR */ |
e14a5a13 |
1124 | compatibility(ANSI); |
374330e2 |
1125 | move (0, curs_y + def(esc_args[0], 1), 1); |
cabfd08c |
1126 | seen_disp_event = TRUE; |
374330e2 |
1127 | break; |
1128 | case 'F': /* move up N lines and CR */ |
e14a5a13 |
1129 | compatibility(ANSI); |
374330e2 |
1130 | move (0, curs_y - def(esc_args[0], 1), 1); |
cabfd08c |
1131 | seen_disp_event = TRUE; |
374330e2 |
1132 | break; |
1133 | case 'G': case '`': /* set horizontal posn */ |
e14a5a13 |
1134 | compatibility(ANSI); |
374330e2 |
1135 | move (def(esc_args[0], 1) - 1, curs_y, 0); |
cabfd08c |
1136 | seen_disp_event = TRUE; |
374330e2 |
1137 | break; |
1138 | case 'd': /* set vertical posn */ |
e14a5a13 |
1139 | compatibility(ANSI); |
374330e2 |
1140 | move (curs_x, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
1141 | (dec_om ? 2 : 0)); |
cabfd08c |
1142 | seen_disp_event = TRUE; |
374330e2 |
1143 | break; |
1144 | case 'H': case 'f': /* set horz and vert posns at once */ |
1145 | if (esc_nargs < 2) |
1146 | esc_args[1] = ARG_DEFAULT; |
1147 | move (def(esc_args[1], 1) - 1, |
1148 | (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
1149 | (dec_om ? 2 : 0)); |
cabfd08c |
1150 | seen_disp_event = TRUE; |
374330e2 |
1151 | break; |
1152 | case 'J': /* erase screen or parts of it */ |
1153 | { |
1154 | unsigned int i = def(esc_args[0], 0) + 1; |
1155 | if (i > 3) |
1156 | i = 0; |
1157 | erase_lots(FALSE, !!(i & 2), !!(i & 1)); |
1158 | } |
1159 | disptop = scrtop; |
cabfd08c |
1160 | seen_disp_event = TRUE; |
374330e2 |
1161 | break; |
1162 | case 'K': /* erase line or parts of it */ |
1163 | { |
1164 | unsigned int i = def(esc_args[0], 0) + 1; |
1165 | if (i > 3) |
1166 | i = 0; |
1167 | erase_lots(TRUE, !!(i & 2), !!(i & 1)); |
1168 | } |
cabfd08c |
1169 | seen_disp_event = TRUE; |
374330e2 |
1170 | break; |
1171 | case 'L': /* insert lines */ |
e14a5a13 |
1172 | compatibility(VT102); |
374330e2 |
1173 | if (curs_y <= marg_b) |
1174 | scroll (curs_y, marg_b, -def(esc_args[0], 1), FALSE); |
cabfd08c |
1175 | seen_disp_event = TRUE; |
374330e2 |
1176 | break; |
1177 | case 'M': /* delete lines */ |
e14a5a13 |
1178 | compatibility(VT102); |
374330e2 |
1179 | if (curs_y <= marg_b) |
cabfd08c |
1180 | scroll (curs_y, marg_b, def(esc_args[0], 1), TRUE); |
1181 | seen_disp_event = TRUE; |
374330e2 |
1182 | break; |
1183 | case '@': /* insert chars */ |
e14a5a13 |
1184 | /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ |
1185 | compatibility(VT102); |
374330e2 |
1186 | insch (def(esc_args[0], 1)); |
cabfd08c |
1187 | seen_disp_event = TRUE; |
374330e2 |
1188 | break; |
1189 | case 'P': /* delete chars */ |
e14a5a13 |
1190 | compatibility(VT102); |
374330e2 |
1191 | insch (-def(esc_args[0], 1)); |
cabfd08c |
1192 | seen_disp_event = TRUE; |
374330e2 |
1193 | break; |
1194 | case 'c': /* terminal type query */ |
e14a5a13 |
1195 | compatibility(VT100); |
1196 | /* This is the response for a VT102 */ |
c9def1b8 |
1197 | ldisc->send (id_string, strlen(id_string)); |
374330e2 |
1198 | break; |
1199 | case 'n': /* cursor position query */ |
1200 | if (esc_args[0] == 6) { |
1201 | char buf[32]; |
1202 | sprintf (buf, "\033[%d;%dR", curs_y + 1, curs_x + 1); |
5bc238bb |
1203 | ldisc->send (buf, strlen(buf)); |
374330e2 |
1204 | } |
e14a5a13 |
1205 | else if (esc_args[0] == 5) { |
e14a5a13 |
1206 | ldisc->send ("\033[0n", 4); |
1207 | } |
374330e2 |
1208 | break; |
e14a5a13 |
1209 | case 'h': /* toggle modes to high */ |
8b811b12 |
1210 | case ANSI_QUE('h'): |
e14a5a13 |
1211 | compatibility(VT100); |
1212 | { |
1213 | int i; |
1214 | for (i=0; i<esc_nargs; i++) |
1215 | toggle_mode (esc_args[i], esc_query, TRUE); |
1216 | } |
374330e2 |
1217 | break; |
e14a5a13 |
1218 | case 'l': /* toggle modes to low */ |
8b811b12 |
1219 | case ANSI_QUE('l'): |
e14a5a13 |
1220 | compatibility(VT100); |
1221 | { |
1222 | int i; |
1223 | for (i=0; i<esc_nargs; i++) |
1224 | toggle_mode (esc_args[i], esc_query, FALSE); |
1225 | } |
374330e2 |
1226 | break; |
1227 | case 'g': /* clear tabs */ |
e14a5a13 |
1228 | compatibility(VT100); |
374330e2 |
1229 | if (esc_nargs == 1) { |
1230 | if (esc_args[0] == 0) { |
1231 | tabs[curs_x] = FALSE; |
1232 | } else if (esc_args[0] == 3) { |
1233 | int i; |
1234 | for (i = 0; i < cols; i++) |
1235 | tabs[i] = FALSE; |
1236 | } |
1237 | } |
1238 | break; |
1239 | case 'r': /* set scroll margins */ |
e14a5a13 |
1240 | compatibility(VT100); |
8b811b12 |
1241 | if (esc_nargs <= 2) { |
374330e2 |
1242 | int top, bot; |
7e394092 |
1243 | top = def(esc_args[0], 1) - 1; |
1244 | bot = (esc_nargs <= 1 || esc_args[1] == 0 ? rows : |
1245 | def(esc_args[1], rows)) - 1; |
374330e2 |
1246 | if (bot >= rows) |
1247 | bot = rows-1; |
7e394092 |
1248 | /* VTTEST Bug 9 - if region is less than 2 lines |
1249 | * don't change region. |
1250 | */ |
83ea993b |
1251 | if (bot-top > 0) { |
374330e2 |
1252 | marg_t = top; |
1253 | marg_b = bot; |
1254 | curs_x = 0; |
1255 | /* |
1256 | * I used to think the cursor should be |
1257 | * placed at the top of the newly marginned |
1258 | * area. Apparently not: VMS TPU falls over |
1259 | * if so. |
e14a5a13 |
1260 | * |
1261 | * Well actually it should for Origin mode - RDB |
374330e2 |
1262 | */ |
e14a5a13 |
1263 | curs_y = (dec_om ? marg_t : 0); |
374330e2 |
1264 | fix_cpos; |
cabfd08c |
1265 | seen_disp_event = TRUE; |
374330e2 |
1266 | } |
1267 | } |
1268 | break; |
1269 | case 'm': /* set graphics rendition */ |
1270 | { |
e14a5a13 |
1271 | /* |
1272 | * A VT100 without the AVO only had one attribute, either |
1273 | * underline or reverse video depending on the cursor type, |
1274 | * this was selected by CSI 7m. |
1275 | * |
1276 | * case 2: |
1277 | * This is DIM on the VT100-AVO and VT102 |
1278 | * case 5: |
1279 | * This is BLINK on the VT100-AVO and VT102+ |
1280 | * case 8: |
1281 | * This is INVIS on the VT100-AVO and VT102 |
1282 | * case 21: |
1283 | * This like 22 disables BOLD, DIM and INVIS |
1284 | * |
1285 | * The ANSI colours appear on any terminal that has colour |
1286 | * (obviously) but the interaction between sgr0 and the |
1287 | * colours varies but is usually related to the background |
1288 | * colour erase item. |
1289 | * The interaction between colour attributes and the mono |
1290 | * ones is also very implementation dependent. |
1291 | * |
1292 | * The 39 and 49 attributes are likely to be unimplemented. |
1293 | */ |
374330e2 |
1294 | int i; |
1295 | for (i=0; i<esc_nargs; i++) { |
1296 | switch (def(esc_args[i], 0)) { |
1297 | case 0: /* restore defaults */ |
1298 | curr_attr = ATTR_DEFAULT; break; |
1299 | case 1: /* enable bold */ |
e14a5a13 |
1300 | compatibility(VT100AVO); |
374330e2 |
1301 | curr_attr |= ATTR_BOLD; break; |
374330e2 |
1302 | case 21: /* (enable double underline) */ |
e14a5a13 |
1303 | compatibility(OTHER); |
1304 | case 4: /* enable underline */ |
1305 | compatibility(VT100AVO); |
374330e2 |
1306 | curr_attr |= ATTR_UNDER; break; |
e14a5a13 |
1307 | case 5: /* enable blink */ |
1308 | compatibility(VT100AVO); |
1309 | curr_attr |= ATTR_BLINK; break; |
374330e2 |
1310 | case 7: /* enable reverse video */ |
1311 | curr_attr |= ATTR_REVERSE; break; |
1312 | case 22: /* disable bold */ |
ec55b220 |
1313 | compatibility2(OTHER,VT220); |
374330e2 |
1314 | curr_attr &= ~ATTR_BOLD; break; |
1315 | case 24: /* disable underline */ |
ec55b220 |
1316 | compatibility2(OTHER,VT220); |
374330e2 |
1317 | curr_attr &= ~ATTR_UNDER; break; |
e14a5a13 |
1318 | case 25: /* disable blink */ |
ec55b220 |
1319 | compatibility2(OTHER,VT220); |
e14a5a13 |
1320 | curr_attr &= ~ATTR_BLINK; break; |
374330e2 |
1321 | case 27: /* disable reverse video */ |
ec55b220 |
1322 | compatibility2(OTHER,VT220); |
374330e2 |
1323 | curr_attr &= ~ATTR_REVERSE; break; |
1324 | case 30: case 31: case 32: case 33: |
1325 | case 34: case 35: case 36: case 37: |
1326 | /* foreground */ |
1327 | curr_attr &= ~ATTR_FGMASK; |
1328 | curr_attr |= (esc_args[i] - 30) << ATTR_FGSHIFT; |
1329 | break; |
1330 | case 39: /* default-foreground */ |
1331 | curr_attr &= ~ATTR_FGMASK; |
1332 | curr_attr |= ATTR_DEFFG; |
1333 | break; |
1334 | case 40: case 41: case 42: case 43: |
1335 | case 44: case 45: case 46: case 47: |
1336 | /* background */ |
1337 | curr_attr &= ~ATTR_BGMASK; |
1338 | curr_attr |= (esc_args[i] - 40) << ATTR_BGSHIFT; |
1339 | break; |
1340 | case 49: /* default-background */ |
1341 | curr_attr &= ~ATTR_BGMASK; |
1342 | curr_attr |= ATTR_DEFBG; |
1343 | break; |
1344 | } |
1345 | } |
e14a5a13 |
1346 | if (use_bce) |
c9def1b8 |
1347 | erase_char = |
1348 | (' '| |
1349 | (curr_attr&(ATTR_FGMASK|ATTR_BGMASK|ATTR_BLINK)) |
1350 | ); |
374330e2 |
1351 | } |
1352 | break; |
1353 | case 's': /* save cursor */ |
1354 | save_cursor (TRUE); |
1355 | break; |
1356 | case 'u': /* restore cursor */ |
1357 | save_cursor (FALSE); |
cabfd08c |
1358 | seen_disp_event = TRUE; |
374330e2 |
1359 | break; |
1360 | case 't': /* set page size - ie window height */ |
e14a5a13 |
1361 | /* |
1362 | * VT340/VT420 sequence DECSLPP, DEC only allows values |
1363 | * 24/25/36/48/72/144 other emulators (eg dtterm) use |
1364 | * illegal values (eg first arg 1..9) for window changing |
1365 | * and reports. |
1366 | */ |
1367 | compatibility(VT340TEXT); |
1368 | if (esc_nargs<=1 && (esc_args[0]<1 || esc_args[0]>=24)) { |
c9def1b8 |
1369 | request_resize (cols, def(esc_args[0], 24), 0); |
e14a5a13 |
1370 | deselect(); |
1371 | } |
1372 | break; |
1373 | case ANSI('|', '*'): |
1374 | /* VT420 sequence DECSNLS |
1375 | * Set number of lines on screen |
1376 | * VT420 uses VGA like hardware and can support any size in |
1377 | * reasonable range (24..49 AIUI) with no default specified. |
1378 | */ |
1379 | compatibility(VT420); |
c9def1b8 |
1380 | if (esc_nargs==1 && esc_args[0]>0) { |
1381 | request_resize (cols, def(esc_args[0], cfg.height), 0); |
e14a5a13 |
1382 | deselect(); |
1383 | } |
1384 | break; |
1385 | case ANSI('|', '$'): |
1386 | /* VT340/VT420 sequence DECSCPP |
1387 | * Set number of columns per page |
1388 | * Docs imply range is only 80 or 132, but I'll allow any. |
1389 | */ |
1390 | compatibility(VT340TEXT); |
1391 | if (esc_nargs<=1) { |
c9def1b8 |
1392 | request_resize (def(esc_args[0], cfg.width), rows, 0); |
e14a5a13 |
1393 | deselect(); |
1394 | } |
374330e2 |
1395 | break; |
1396 | case 'X': /* write N spaces w/o moving cursor */ |
e14a5a13 |
1397 | /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ |
c9def1b8 |
1398 | compatibility(ANSIMIN); |
374330e2 |
1399 | { |
1400 | int n = def(esc_args[0], 1); |
1401 | unsigned long *p = cpos; |
1402 | if (n > cols - curs_x) |
1403 | n = cols - curs_x; |
1404 | check_selection (cpos, cpos+n); |
1405 | while (n--) |
e14a5a13 |
1406 | *p++ = erase_char; |
cabfd08c |
1407 | seen_disp_event = TRUE; |
374330e2 |
1408 | } |
1409 | break; |
1410 | case 'x': /* report terminal characteristics */ |
e14a5a13 |
1411 | compatibility(VT100); |
374330e2 |
1412 | { |
1413 | char buf[32]; |
1414 | int i = def(esc_args[0], 0); |
1415 | if (i == 0 || i == 1) { |
1416 | strcpy (buf, "\033[2;1;1;112;112;1;0x"); |
1417 | buf[2] += i; |
5bc238bb |
1418 | ldisc->send (buf, 20); |
374330e2 |
1419 | } |
1420 | } |
1421 | break; |
e14a5a13 |
1422 | case ANSI('L','='): |
1423 | compatibility(OTHER); |
1424 | use_bce = (esc_args[0]<=0); |
1425 | erase_char = ERASE_CHAR; |
1426 | if (use_bce) |
1427 | erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
1428 | break; |
c9def1b8 |
1429 | case ANSI('E','='): |
1430 | compatibility(OTHER); |
1431 | blink_is_real = (esc_args[0]>=1); |
1432 | break; |
e14a5a13 |
1433 | case ANSI('p','"'): |
1434 | /* Allow the host to make this emulator a 'perfect' VT102. |
1435 | * This first appeared in the VT220, but we do need to get |
1436 | * back to PuTTY mode so I won't check it. |
1437 | * |
ec55b220 |
1438 | * The arg in 40..42 are a PuTTY extension. |
1439 | * The 2nd arg, 8bit vs 7bit is not checked. |
e14a5a13 |
1440 | * |
1441 | * Setting VT102 mode should also change the Fkeys to |
1442 | * generate PF* codes as a real VT102 has no Fkeys. |
1443 | * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys |
1444 | * send nothing. |
1445 | * |
1446 | * Note ESC c will NOT change this! |
1447 | */ |
1448 | |
ec55b220 |
1449 | switch (esc_args[0]) { |
1450 | case 61: compatibility_level &= ~TM_VTXXX; |
1451 | compatibility_level |= TM_VT102; break; |
1452 | case 62: compatibility_level &= ~TM_VTXXX; |
1453 | compatibility_level |= TM_VT220; break; |
1454 | |
1455 | default: if( esc_args[0] > 60 && esc_args[0] < 70 ) |
1456 | compatibility_level |= TM_VTXXX; |
1457 | break; |
1458 | |
1459 | case 40: compatibility_level &= TM_VTXXX; break; |
1460 | case 41: compatibility_level = TM_PUTTY; break; |
1461 | case 42: compatibility_level = TM_SCOANSI; break; |
1462 | |
1463 | case ARG_DEFAULT: |
1464 | compatibility_level = TM_PUTTY; break; |
1465 | case 50: break; |
1466 | } |
1467 | |
1468 | /* Change the response to CSI c */ |
1469 | if (esc_args[0] == 50) { |
1470 | int i; |
1471 | char lbuf[64]; |
1472 | strcpy(id_string, "\033[?"); |
1473 | for (i=1; i<esc_nargs; i++) { |
1474 | if (i!=1) strcat(id_string, ";"); |
1475 | sprintf(lbuf, "%d", esc_args[i]); |
1476 | strcat(id_string, lbuf); |
1477 | } |
1478 | strcat(id_string, "c"); |
1479 | } |
1480 | |
1481 | #if 0 |
1482 | /* Is this a good idea ? |
1483 | * Well we should do a soft reset at this point ... |
1484 | */ |
1485 | if (!has_compat(VT420) && has_compat(VT100)) { |
1486 | if (reset_132) request_resize (132, 24, 1); |
1487 | else request_resize ( 80, 24, 1); |
1488 | } |
1489 | #endif |
e14a5a13 |
1490 | break; |
374330e2 |
1491 | } |
1492 | break; |
1493 | case SET_GL: |
1494 | case SET_GR: |
e14a5a13 |
1495 | /* VT100 only here, checked above */ |
374330e2 |
1496 | switch (c) { |
1497 | case 'A': |
1498 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_GBCHR; |
1499 | break; |
1500 | case '0': |
1501 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_LINEDRW; |
1502 | break; |
e14a5a13 |
1503 | case 'B': |
374330e2 |
1504 | default: /* specifically, 'B' */ |
1505 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_ASCII; |
1506 | break; |
1507 | } |
e14a5a13 |
1508 | if( !has_compat(VT220) || c != '%' ) |
8b811b12 |
1509 | termstate = TOPLEVEL; |
374330e2 |
1510 | break; |
1511 | case SEEN_OSC: |
1512 | osc_w = FALSE; |
1513 | switch (c) { |
374330e2 |
1514 | case 'P': /* Linux palette sequence */ |
1515 | termstate = SEEN_OSC_P; |
1516 | osc_strlen = 0; |
1517 | break; |
1518 | case 'R': /* Linux palette reset */ |
1519 | palette_reset(); |
1520 | term_invalidate(); |
1521 | termstate = TOPLEVEL; |
1522 | break; |
1523 | case 'W': /* word-set */ |
1524 | termstate = SEEN_OSC_W; |
1525 | osc_w = TRUE; |
1526 | break; |
1527 | case '0': case '1': case '2': case '3': case '4': |
1528 | case '5': case '6': case '7': case '8': case '9': |
1529 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1530 | break; |
1531 | case 'L': |
1532 | /* |
1533 | * Grotty hack to support xterm and DECterm title |
1534 | * sequences concurrently. |
1535 | */ |
1536 | if (esc_args[0] == 2) { |
1537 | esc_args[0] = 1; |
1538 | break; |
1539 | } |
1540 | /* else fall through */ |
1541 | default: |
1542 | termstate = OSC_STRING; |
1543 | osc_strlen = 0; |
1544 | } |
1545 | break; |
1546 | case OSC_STRING: |
8b811b12 |
1547 | /* |
1548 | * This OSC stuff is EVIL. It takes just one character to get into |
1549 | * sysline mode and it's not initially obvious how to get out. |
1550 | * So I've added CR and LF as string aborts. |
1551 | * This shouldn't effect compatibility as I believe embedded |
1552 | * control characters are supposed to be interpreted (maybe?) |
1553 | * and they don't display anything useful anyway. |
1554 | * |
1555 | * -- RDB |
1556 | */ |
1557 | if (c == '\n' || c == '\r') { |
1558 | termstate = TOPLEVEL; |
1559 | } else if (c == 0234 || c == '\007' ) { |
374330e2 |
1560 | /* |
1561 | * These characters terminate the string; ST and BEL |
1562 | * terminate the sequence and trigger instant |
1563 | * processing of it, whereas ESC goes back to SEEN_ESC |
1564 | * mode unless it is followed by \, in which case it is |
1565 | * synonymous with ST in the first place. |
1566 | */ |
1567 | do_osc(); |
1568 | termstate = TOPLEVEL; |
1569 | } else if (c == '\033') |
1570 | termstate = OSC_MAYBE_ST; |
1571 | else if (osc_strlen < OSC_STR_MAX) |
1572 | osc_string[osc_strlen++] = c; |
1573 | break; |
1574 | case SEEN_OSC_P: |
1575 | { |
1576 | int max = (osc_strlen == 0 ? 21 : 16); |
1577 | int val; |
1578 | if (c >= '0' && c <= '9') |
1579 | val = c - '0'; |
1580 | else if (c >= 'A' && c <= 'A'+max-10) |
1581 | val = c - 'A' + 10; |
1582 | else if (c >= 'a' && c <= 'a'+max-10) |
1583 | val = c - 'a' + 10; |
1584 | else |
1585 | termstate = TOPLEVEL; |
1586 | osc_string[osc_strlen++] = val; |
1587 | if (osc_strlen >= 7) { |
1588 | palette_set (osc_string[0], |
1589 | osc_string[1] * 16 + osc_string[2], |
1590 | osc_string[3] * 16 + osc_string[4], |
1591 | osc_string[5] * 16 + osc_string[6]); |
1592 | term_invalidate(); |
1593 | termstate = TOPLEVEL; |
1594 | } |
1595 | } |
1596 | break; |
1597 | case SEEN_OSC_W: |
1598 | switch (c) { |
374330e2 |
1599 | case '0': case '1': case '2': case '3': case '4': |
1600 | case '5': case '6': case '7': case '8': case '9': |
1601 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
1602 | break; |
1603 | default: |
1604 | termstate = OSC_STRING; |
1605 | osc_strlen = 0; |
1606 | } |
1607 | break; |
1608 | case SEEN_ESCHASH: |
c9def1b8 |
1609 | { |
1610 | unsigned long *p; |
1611 | unsigned long nlattr; |
1612 | int n; |
1613 | |
1614 | switch (c) { |
1615 | case '8': |
1616 | p = scrtop; |
1617 | n = rows * (cols+1); |
1618 | while (n--) |
1619 | *p++ = ATTR_DEFAULT | 'E'; |
1620 | disptop = scrtop; |
1621 | seen_disp_event = TRUE; |
1622 | check_selection (scrtop, scrtop + rows * (cols+1)); |
1623 | break; |
1624 | |
1625 | case '3': nlattr = LATTR_TOP; if(0) { |
1626 | case '4': nlattr = LATTR_BOT; } if(0) { |
1627 | case '5': nlattr = LATTR_NORM; } if(0) { |
1628 | case '6': nlattr = LATTR_WIDE; } |
1629 | |
1630 | p = scrtop + curs_y * (cols+1) + cols; |
1631 | *p &= ~LATTR_MODE; |
1632 | *p |= nlattr; |
1633 | } |
374330e2 |
1634 | } |
1635 | termstate = TOPLEVEL; |
1636 | break; |
e14a5a13 |
1637 | case VT52_ESC: |
1638 | termstate = TOPLEVEL; |
1639 | seen_disp_event = TRUE; |
1640 | switch (c) { |
1641 | case 'A': |
1642 | move (curs_x, curs_y - 1, 1); |
1643 | break; |
1644 | case 'B': |
1645 | move (curs_x, curs_y + 1, 1); |
1646 | break; |
1647 | case 'C': |
1648 | move (curs_x + 1, curs_y, 1); |
1649 | break; |
1650 | case 'D': |
1651 | move (curs_x - 1, curs_y, 1); |
1652 | break; |
1653 | case 'F': |
1654 | cset_attr[cset=0] = ATTR_LINEDRW; |
1655 | break; |
1656 | case 'G': |
1657 | cset_attr[cset=0] = ATTR_ASCII; |
1658 | break; |
1659 | case 'H': |
1660 | move (0, 0, 0); |
1661 | break; |
1662 | case 'I': |
1663 | if (curs_y == 0) |
1664 | scroll (0, rows-1, -1, TRUE); |
1665 | else if (curs_y > 0) |
1666 | curs_y--; |
1667 | fix_cpos; |
1668 | wrapnext = FALSE; |
1669 | break; |
1670 | case 'J': |
1671 | erase_lots(FALSE, FALSE, TRUE); |
1672 | disptop = scrtop; |
1673 | break; |
1674 | case 'K': |
1675 | erase_lots(TRUE, FALSE, TRUE); |
1676 | break; |
1677 | case 'V': |
1678 | /* XXX Print cursor line */ |
1679 | break; |
1680 | case 'W': |
1681 | /* XXX Start controller mode */ |
1682 | break; |
1683 | case 'X': |
1684 | /* XXX Stop controller mode */ |
1685 | break; |
1686 | case 'Y': |
1687 | termstate = VT52_Y1; |
1688 | break; |
1689 | case 'Z': |
1690 | ldisc->send ("\033/Z", 3); |
1691 | break; |
1692 | case '=': |
ec55b220 |
1693 | app_keypad_keys = TRUE; |
e14a5a13 |
1694 | break; |
1695 | case '>': |
ec55b220 |
1696 | app_keypad_keys = FALSE; |
e14a5a13 |
1697 | break; |
1698 | case '<': |
1699 | /* XXX This should switch to VT100 mode not current or default |
1700 | * VT mode. But this will only have effect in a VT220+ |
1701 | * emulation. |
1702 | */ |
1703 | vt52_mode = FALSE; |
1704 | break; |
1705 | case '^': |
1706 | /* XXX Enter auto print mode */ |
1707 | break; |
1708 | case '_': |
1709 | /* XXX Exit auto print mode */ |
1710 | break; |
1711 | case ']': |
1712 | /* XXX Print screen */ |
1713 | break; |
1714 | } |
1715 | break; |
1716 | case VT52_Y1: |
1717 | termstate = VT52_Y2; |
1718 | move(curs_x, c-' ', 0); |
1719 | break; |
1720 | case VT52_Y2: |
1721 | termstate = TOPLEVEL; |
1722 | move(c-' ', curs_y, 0); |
1723 | break; |
374330e2 |
1724 | } |
e14a5a13 |
1725 | if (selstate != NO_SELECTION) |
1726 | check_selection (cpos, cpos+1); |
374330e2 |
1727 | } |
c9def1b8 |
1728 | inbuf_head = 0; |
1729 | |
1730 | if (beep_overload) |
1731 | { |
1732 | if(!beep_count) beep_overload=0; |
1733 | } |
1734 | else if(beep_count && beep_count<5 && cfg.beep) |
1735 | beep(beep_count/3); |
374330e2 |
1736 | } |
1737 | |
1738 | /* |
1739 | * Compare two lines to determine whether they are sufficiently |
1740 | * alike to scroll-optimise one to the other. Return the degree of |
1741 | * similarity. |
1742 | */ |
1743 | static int linecmp (unsigned long *a, unsigned long *b) { |
1744 | int i, n; |
1745 | |
1746 | for (i=n=0; i < cols; i++) |
1747 | n += (*a++ == *b++); |
1748 | return n; |
1749 | } |
1750 | |
1751 | /* |
1752 | * Given a context, update the window. Out of paranoia, we don't |
1753 | * allow WM_PAINT responses to do scrolling optimisations. |
1754 | */ |
ec8679e9 |
1755 | static void do_paint (Context ctx, int may_optimise){ |
374330e2 |
1756 | int i, j, start, our_curs_y; |
1757 | unsigned long attr, rv, cursor; |
1758 | char ch[1024]; |
1759 | |
e14a5a13 |
1760 | if (cursor_on) { |
1761 | if (has_focus) { |
217dceef |
1762 | if (blinker || !cfg.blink_cur) |
1763 | cursor = ATTR_ACTCURS; |
1764 | else |
1765 | cursor = 0; |
e14a5a13 |
1766 | } |
1767 | else |
1768 | cursor = ATTR_PASCURS; |
1769 | } |
1770 | else cursor = 0; |
374330e2 |
1771 | rv = (rvideo ? ATTR_REVERSE : 0); |
1772 | our_curs_y = curs_y + (scrtop - disptop) / (cols+1); |
1773 | |
1774 | for (i=0; i<rows; i++) { |
1775 | int idx = i*(cols+1); |
c9def1b8 |
1776 | int lattr = (disptop[idx+cols] & LATTR_MODE); |
374330e2 |
1777 | for (j=0; j<=cols; j++,idx++) { |
1778 | unsigned long *d = disptop+idx; |
c9def1b8 |
1779 | wanttext[idx] = lattr | ((*d ^ rv |
374330e2 |
1780 | ^ (selstart <= d && d < selend ? |
1781 | ATTR_REVERSE : 0)) | |
1782 | (i==our_curs_y && j==curs_x ? cursor : 0)); |
c9def1b8 |
1783 | |
1784 | if (blink_is_real) { |
1785 | if (has_focus && tblinker && (wanttext[idx]&ATTR_BLINK) ) |
1786 | { |
1787 | wanttext[idx] &= ATTR_MASK; |
1788 | wanttext[idx] += ' '; |
1789 | } |
1790 | wanttext[idx] &= ~ATTR_BLINK; |
1791 | } |
374330e2 |
1792 | } |
1793 | } |
1794 | |
1795 | /* |
1796 | * We would perform scrolling optimisations in here, if they |
1797 | * didn't have a nasty tendency to cause the whole sodding |
1798 | * program to hang for a second at speed-critical moments. |
1799 | * We'll leave it well alone... |
1800 | */ |
1801 | |
1802 | for (i=0; i<rows; i++) { |
1803 | int idx = i*(cols+1); |
c9def1b8 |
1804 | int lattr = (wanttext[idx+cols] & LATTR_MODE); |
374330e2 |
1805 | start = -1; |
1806 | for (j=0; j<=cols; j++,idx++) { |
1807 | unsigned long t = wanttext[idx]; |
1808 | int needs_update = (j < cols && t != disptext[idx]); |
1809 | int keep_going = (start != -1 && needs_update && |
1810 | (t & ATTR_MASK) == attr && |
1811 | j-start < sizeof(ch)); |
1812 | if (start != -1 && !keep_going) { |
c9def1b8 |
1813 | do_text (ctx, start, i, ch, j-start, attr, lattr); |
374330e2 |
1814 | start = -1; |
1815 | } |
1816 | if (needs_update) { |
1817 | if (start == -1) { |
1818 | start = j; |
1819 | attr = t & ATTR_MASK; |
1820 | } |
1821 | ch[j-start] = (char) (t & CHAR_MASK); |
1822 | } |
1823 | disptext[idx] = t; |
1824 | } |
1825 | } |
1826 | } |
1827 | |
1828 | /* |
e14a5a13 |
1829 | * Flick the switch that says if blinking things should be shown or hidden. |
1830 | */ |
1831 | |
1832 | void term_blink(int flg) { |
1833 | static long last_blink = 0; |
c9def1b8 |
1834 | static long last_tblink = 0; |
e14a5a13 |
1835 | long now, blink_diff; |
1836 | |
c9def1b8 |
1837 | now = GetTickCount(); |
1838 | blink_diff = now-last_tblink; |
1839 | |
1840 | /* Make sure the text blinks no more than 2Hz */ |
1841 | if (blink_diff<0 || blink_diff>450) |
1842 | { |
1843 | last_tblink = now; |
1844 | tblinker = !tblinker; |
1845 | } |
1846 | |
e14a5a13 |
1847 | if (flg) { |
1848 | blinker = 1; |
c9def1b8 |
1849 | last_blink = now; |
e14a5a13 |
1850 | return; |
1851 | } |
e14a5a13 |
1852 | |
1853 | blink_diff = now-last_blink; |
1854 | |
1855 | /* Make sure the cursor blinks no more than 2Hz */ |
1856 | if (blink_diff>=0 && blink_diff<450) |
1857 | return; |
1858 | |
1859 | last_blink = now; |
1860 | blinker = !blinker; |
1861 | } |
1862 | |
1863 | /* |
374330e2 |
1864 | * Invalidate the whole screen so it will be repainted in full. |
1865 | */ |
1866 | void term_invalidate(void) { |
1867 | int i; |
1868 | |
1869 | for (i=0; i<rows*(cols+1); i++) |
1870 | disptext[i] = ATTR_INVALID; |
1871 | } |
1872 | |
1873 | /* |
1874 | * Paint the window in response to a WM_PAINT message. |
1875 | */ |
1876 | void term_paint (Context ctx, int l, int t, int r, int b) { |
1877 | int i, j, left, top, right, bottom; |
1878 | |
1879 | left = l / font_width; |
1880 | right = (r - 1) / font_width; |
1881 | top = t / font_height; |
1882 | bottom = (b - 1) / font_height; |
e42ad027 |
1883 | for (i = top; i <= bottom && i < rows ; i++) |
c9def1b8 |
1884 | { |
1885 | if ( (disptext[i*(cols+1)+cols]&LATTR_MODE) == LATTR_NORM) |
1886 | for (j = left; j <= right && j < cols ; j++) |
1887 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
1888 | else |
1889 | for (j = left/2; j <= right/2+1 && j < cols ; j++) |
1890 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
1891 | } |
374330e2 |
1892 | |
e14a5a13 |
1893 | /* This should happen soon enough, also for some reason it sometimes |
1894 | * fails to actually do anything when re-sizing ... painting the wrong |
1895 | * window perhaps ? |
374330e2 |
1896 | do_paint (ctx, FALSE); |
e14a5a13 |
1897 | */ |
374330e2 |
1898 | } |
1899 | |
1900 | /* |
1901 | * Attempt to scroll the scrollback. The second parameter gives the |
1902 | * position we want to scroll to; the first is +1 to denote that |
1903 | * this position is relative to the beginning of the scrollback, -1 |
1904 | * to denote it is relative to the end, and 0 to denote that it is |
1905 | * relative to the current position. |
1906 | */ |
1907 | void term_scroll (int rel, int where) { |
1908 | int n = where * (cols+1); |
1909 | |
1910 | disptop = (rel < 0 ? scrtop : |
1911 | rel > 0 ? sbtop : disptop) + n; |
1912 | if (disptop < sbtop) |
1913 | disptop = sbtop; |
1914 | if (disptop > scrtop) |
1915 | disptop = scrtop; |
1916 | update_sbar(); |
1917 | term_update(); |
1918 | } |
1919 | |
508a6084 |
1920 | static void clipme(unsigned long *top, unsigned long *bottom, char *workbuf) { |
bc1235d4 |
1921 | char *wbptr; /* where next char goes within workbuf */ |
1922 | int wblen = 0; /* workbuf len */ |
1923 | int buflen; /* amount of memory allocated to workbuf */ |
1924 | |
1925 | if ( workbuf != NULL ) { /* user supplied buffer? */ |
1926 | buflen = -1; /* assume buffer passed in is big enough */ |
1927 | wbptr = workbuf; /* start filling here */ |
1928 | } |
1929 | else |
1930 | buflen = 0; /* No data is available yet */ |
1931 | |
1932 | while (top < bottom) { |
1933 | int nl = FALSE; |
1934 | unsigned long *lineend = top - (top-text) % (cols+1) + cols; |
1935 | unsigned long *nlpos = lineend; |
1936 | |
1937 | if (!(*nlpos & ATTR_WRAPPED)) { |
1938 | while ((nlpos[-1] & CHAR_MASK) == 0x20 && nlpos > top) |
1939 | nlpos--; |
1940 | if (nlpos < bottom) |
1941 | nl = TRUE; |
1942 | } |
1943 | while (top < nlpos && top < bottom) |
1944 | { |
1945 | #if 0 |
1946 | /* VT Specials -> ISO8859-1 */ |
1947 | static const char poorman2[] = |
1948 | "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 "; |
1949 | #endif |
1950 | |
1951 | int ch = (*top & CHAR_MASK); |
1952 | |
1953 | #if 0 |
1954 | if ((*top & ATTR_LINEDRW) && ch >= 0x60 && ch < 0x7F) { |
1955 | int x; |
1956 | *wbptr++ = poorman2[2*(ch-0x60)]; |
1957 | if ( (x = poorman2[2*(ch-0x60)+1]) != ' ') |
1958 | *wbptr++ = x; |
1959 | } else |
1960 | #endif |
1961 | #if 0 |
1962 | if ((*top & ATTR_GBCHR) && ch == '#') |
1963 | *wbptr++ = (unsigned char) 0xA3; |
1964 | else |
1965 | #endif |
1966 | if ( wblen == buflen ) |
1967 | { |
1968 | workbuf = srealloc(workbuf, buflen += 100); |
1969 | wbptr = workbuf + wblen; |
1970 | } |
1971 | wblen++; |
1972 | *wbptr++ = (unsigned char) ch; |
1973 | top++; |
1974 | } |
1975 | if (nl) { |
1976 | int i; |
1977 | for (i=0; i<sizeof(sel_nl); i++) |
1978 | { |
1979 | if ( wblen == buflen ) |
1980 | { |
1981 | workbuf = srealloc(workbuf, buflen += 100); |
1982 | wbptr = workbuf + wblen; |
1983 | } |
1984 | wblen++; |
1985 | *wbptr++ = sel_nl[i]; |
1986 | } |
1987 | } |
1988 | top = lineend + 1; /* start of next line */ |
1989 | } |
1990 | write_clip (workbuf, wblen, FALSE); /* transfer to clipboard */ |
1991 | if ( buflen > 0 ) /* indicates we allocated this buffer */ |
1992 | sfree(workbuf); |
1993 | |
1994 | } |
1995 | void term_copyall (void) { |
1996 | clipme(sbtop, cpos, NULL /* dynamic allocation */); |
1997 | } |
1998 | |
374330e2 |
1999 | /* |
2000 | * Spread the selection outwards according to the selection mode. |
2001 | */ |
2002 | static unsigned long *sel_spread_half (unsigned long *p, int dir) { |
2003 | unsigned long *linestart, *lineend; |
2004 | int x; |
2005 | short wvalue; |
2006 | |
2007 | x = (p - text) % (cols+1); |
2008 | linestart = p - x; |
2009 | lineend = linestart + cols; |
2010 | |
2011 | switch (selmode) { |
2012 | case SM_CHAR: |
2013 | /* |
2014 | * In this mode, every character is a separate unit, except |
2015 | * for runs of spaces at the end of a non-wrapping line. |
2016 | */ |
2017 | if (!(linestart[cols] & ATTR_WRAPPED)) { |
2018 | unsigned long *q = lineend; |
2019 | while (q > linestart && (q[-1] & CHAR_MASK) == 0x20) |
2020 | q--; |
2021 | if (q == lineend) |
2022 | q--; |
2023 | if (p >= q) |
2024 | p = (dir == -1 ? q : lineend - 1); |
2025 | } |
2026 | break; |
2027 | case SM_WORD: |
2028 | /* |
2029 | * In this mode, the units are maximal runs of characters |
2030 | * whose `wordness' has the same value. |
2031 | */ |
2032 | wvalue = wordness[*p & CHAR_MASK]; |
2033 | if (dir == +1) { |
2034 | while (p < lineend && wordness[p[1] & CHAR_MASK] == wvalue) |
2035 | p++; |
2036 | } else { |
2037 | while (p > linestart && wordness[p[-1] & CHAR_MASK] == wvalue) |
2038 | p--; |
2039 | } |
2040 | break; |
2041 | case SM_LINE: |
2042 | /* |
2043 | * In this mode, every line is a unit. |
2044 | */ |
2045 | p = (dir == -1 ? linestart : lineend - 1); |
2046 | break; |
2047 | } |
2048 | return p; |
2049 | } |
2050 | |
2051 | static void sel_spread (void) { |
2052 | selstart = sel_spread_half (selstart, -1); |
2053 | selend = sel_spread_half (selend - 1, +1) + 1; |
2054 | } |
2055 | |
2056 | void term_mouse (Mouse_Button b, Mouse_Action a, int x, int y) { |
37508af4 |
2057 | unsigned long *selpoint; |
2058 | |
2059 | if (y<0) y = 0; |
2060 | if (y>=rows) y = rows-1; |
094ed2a6 |
2061 | if (x<0) { |
2062 | if (y > 0) { |
2063 | x = cols-1; |
2064 | y--; |
2065 | } else |
2066 | x = 0; |
2067 | } |
37508af4 |
2068 | if (x>=cols) x = cols-1; |
2069 | |
c9def1b8 |
2070 | selpoint = disptop + y * (cols+1); |
2071 | if ((selpoint[cols]&LATTR_MODE) != LATTR_NORM) |
2072 | selpoint += x/2; |
2073 | else |
2074 | selpoint += x; |
374330e2 |
2075 | |
2076 | if (b == MB_SELECT && a == MA_CLICK) { |
2077 | deselect(); |
2078 | selstate = ABOUT_TO; |
2079 | selanchor = selpoint; |
2080 | selmode = SM_CHAR; |
2081 | } else if (b == MB_SELECT && (a == MA_2CLK || a == MA_3CLK)) { |
2082 | deselect(); |
2083 | selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); |
2084 | selstate = DRAGGING; |
2085 | selstart = selanchor = selpoint; |
2086 | selend = selstart + 1; |
2087 | sel_spread(); |
2088 | } else if ((b == MB_SELECT && a == MA_DRAG) || |
2089 | (b == MB_EXTEND && a != MA_RELEASE)) { |
2090 | if (selstate == ABOUT_TO && selanchor == selpoint) |
2091 | return; |
2092 | if (b == MB_EXTEND && a != MA_DRAG && selstate == SELECTED) { |
2093 | if (selpoint-selstart < (selend-selstart)/2) |
2094 | selanchor = selend - 1; |
2095 | else |
2096 | selanchor = selstart; |
2097 | selstate = DRAGGING; |
2098 | } |
2099 | if (selstate != ABOUT_TO && selstate != DRAGGING) |
2100 | selanchor = selpoint; |
2101 | selstate = DRAGGING; |
2102 | if (selpoint < selanchor) { |
2103 | selstart = selpoint; |
2104 | selend = selanchor + 1; |
2105 | } else { |
2106 | selstart = selanchor; |
2107 | selend = selpoint + 1; |
2108 | } |
2109 | sel_spread(); |
2110 | } else if ((b == MB_SELECT || b == MB_EXTEND) && a == MA_RELEASE) { |
2111 | if (selstate == DRAGGING) { |
2112 | /* |
2113 | * We've completed a selection. We now transfer the |
2114 | * data to the clipboard. |
2115 | */ |
bc1235d4 |
2116 | clipme(selstart, selend, selspace); |
374330e2 |
2117 | selstate = SELECTED; |
2118 | } else |
2119 | selstate = NO_SELECTION; |
2120 | } else if (b == MB_PASTE && (a==MA_CLICK || a==MA_2CLK || a==MA_3CLK)) { |
2121 | char *data; |
2122 | int len; |
2123 | |
2124 | get_clip((void **) &data, &len); |
2125 | if (data) { |
2126 | char *p, *q; |
c9def1b8 |
2127 | |
2128 | if (paste_buffer) sfree(paste_buffer); |
2129 | paste_pos = paste_hold = paste_len = 0; |
2130 | paste_buffer = smalloc(len); |
2131 | |
374330e2 |
2132 | p = q = data; |
2133 | while (p < data+len) { |
2134 | while (p < data+len && |
2135 | !(p <= data+len-sizeof(sel_nl) && |
2136 | !memcmp(p, sel_nl, sizeof(sel_nl)))) |
2137 | p++; |
14963b8f |
2138 | |
2139 | { |
2140 | int i; |
2141 | unsigned char c; |
2142 | for(i=0;i<p-q;i++) |
2143 | { |
2144 | c=xlat_kbd2tty(q[i]); |
c9def1b8 |
2145 | paste_buffer[paste_len++] = c; |
14963b8f |
2146 | } |
2147 | } |
2148 | |
374330e2 |
2149 | if (p <= data+len-sizeof(sel_nl) && |
2150 | !memcmp(p, sel_nl, sizeof(sel_nl))) { |
c9def1b8 |
2151 | paste_buffer[paste_len++] = '\r'; |
374330e2 |
2152 | p += sizeof(sel_nl); |
2153 | } |
2154 | q = p; |
2155 | } |
c9def1b8 |
2156 | |
2157 | /* Assume a small paste will be OK in one go. */ |
2158 | if (paste_len<256) { |
2159 | ldisc->send (paste_buffer, paste_len); |
2160 | if (paste_buffer) sfree(paste_buffer); |
2161 | paste_buffer = 0; |
2162 | paste_pos = paste_hold = paste_len = 0; |
2163 | } |
374330e2 |
2164 | } |
2165 | get_clip(NULL, NULL); |
2166 | } |
2167 | |
2168 | term_update(); |
2169 | } |
2170 | |
c9def1b8 |
2171 | void term_nopaste() { |
2172 | if(paste_len == 0) return; |
2173 | sfree(paste_buffer); |
2174 | paste_buffer = 0; |
2175 | paste_len = 0; |
2176 | } |
2177 | |
2178 | void term_paste() { |
8df7a775 |
2179 | static long last_paste = 0; |
c9def1b8 |
2180 | long now, paste_diff; |
2181 | |
2182 | if(paste_len == 0) return; |
2183 | |
2184 | /* Don't wait forever to paste */ |
2185 | if(paste_hold) { |
2186 | now = GetTickCount(); |
2187 | paste_diff = now-last_paste; |
2188 | if (paste_diff>=0 && paste_diff<450) |
2189 | return; |
2190 | } |
2191 | paste_hold = 0; |
2192 | |
2193 | while(paste_pos<paste_len) |
2194 | { |
8df7a775 |
2195 | int n = 0; |
2196 | while (n + paste_pos < paste_len) { |
2197 | if (paste_buffer[paste_pos + n++] == '\r') |
2198 | break; |
2199 | } |
2200 | ldisc->send (paste_buffer+paste_pos, n); |
2201 | paste_pos += n; |
c9def1b8 |
2202 | |
8df7a775 |
2203 | if (paste_pos < paste_len) { |
c9def1b8 |
2204 | paste_hold = 1; |
2205 | return; |
2206 | } |
2207 | } |
2208 | sfree(paste_buffer); |
2209 | paste_buffer = 0; |
2210 | paste_len = 0; |
2211 | } |
2212 | |
374330e2 |
2213 | static void deselect (void) { |
2214 | selstate = NO_SELECTION; |
2215 | selstart = selend = scrtop; |
2216 | } |
2217 | |
2218 | void term_deselect (void) { |
2219 | deselect(); |
2220 | term_update(); |
2221 | } |
fe50e814 |
2222 | |
2223 | /* |
2224 | * from_backend(), to get data from the backend for the terminal. |
2225 | */ |
2226 | void from_backend(int is_stderr, char *data, int len) { |
2227 | while (len--) { |
2228 | if (inbuf_head >= INBUF_SIZE) |
2229 | term_out(); |
2230 | inbuf[inbuf_head++] = *data++; |
2231 | } |
2232 | } |