| 1 | #include <windows.h> |
| 2 | #ifndef AUTO_WINSOCK |
| 3 | #ifdef WINSOCK_TWO |
| 4 | #include <winsock2.h> |
| 5 | #else |
| 6 | #include <winsock.h> |
| 7 | #endif |
| 8 | #endif |
| 9 | |
| 10 | #include <stdio.h> |
| 11 | #include <stdlib.h> |
| 12 | |
| 13 | #include "putty.h" |
| 14 | |
| 15 | #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */ |
| 16 | #define CL_VT100 0x0002 /* VT100 */ |
| 17 | #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */ |
| 18 | #define CL_VT102 0x0008 /* VT102 */ |
| 19 | #define CL_VT220 0x0010 /* VT220 */ |
| 20 | #define CL_VT320 0x0020 /* VT320 */ |
| 21 | #define CL_VT420 0x0040 /* VT420 */ |
| 22 | #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */ |
| 23 | #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */ |
| 24 | #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */ |
| 25 | #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */ |
| 26 | #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */ |
| 27 | |
| 28 | #define TM_VT100 (CL_ANSIMIN|CL_VT100) |
| 29 | #define TM_VT100AVO (TM_VT100|CL_VT100AVO) |
| 30 | #define TM_VT102 (TM_VT100AVO|CL_VT102) |
| 31 | #define TM_VT220 (TM_VT102|CL_VT220) |
| 32 | #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320) |
| 33 | #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI) |
| 34 | |
| 35 | #define TM_PUTTY (0xFFFF) |
| 36 | |
| 37 | #define compatibility(x) \ |
| 38 | if ( ((CL_##x)&compatibility_level) == 0 ) { \ |
| 39 | termstate=TOPLEVEL; \ |
| 40 | break; \ |
| 41 | } |
| 42 | #define compatibility2(x,y) \ |
| 43 | if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \ |
| 44 | termstate=TOPLEVEL; \ |
| 45 | break; \ |
| 46 | } |
| 47 | |
| 48 | #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 ) |
| 49 | |
| 50 | static int compatibility_level = TM_PUTTY; |
| 51 | |
| 52 | |
| 53 | static unsigned long *text; /* buffer of text on terminal screen */ |
| 54 | static unsigned long *scrtop; /* top of working screen */ |
| 55 | static unsigned long *disptop; /* top of displayed screen */ |
| 56 | static unsigned long *sbtop; /* top of scrollback */ |
| 57 | static unsigned long *sbbot; /* furthest extent of scrollback */ |
| 58 | static unsigned long *cpos; /* cursor position (convenience) */ |
| 59 | static unsigned long *disptext; /* buffer of text on real screen */ |
| 60 | static unsigned long *wanttext; /* buffer of text we want on screen */ |
| 61 | static unsigned long *alttext; /* buffer of text on alt. screen */ |
| 62 | |
| 63 | static unsigned char *selspace; /* buffer for building selections in */ |
| 64 | |
| 65 | #define TSIZE (sizeof(*text)) |
| 66 | #define fix_cpos do { cpos = scrtop + curs_y * (cols+1) + curs_x; } while(0) |
| 67 | |
| 68 | static unsigned long curr_attr, save_attr; |
| 69 | static unsigned long erase_char = ERASE_CHAR; |
| 70 | |
| 71 | static int curs_x, curs_y; /* cursor */ |
| 72 | static int save_x, save_y; /* saved cursor position */ |
| 73 | static int marg_t, marg_b; /* scroll margins */ |
| 74 | static int dec_om; /* DEC origin mode flag */ |
| 75 | static int wrap, wrapnext; /* wrap flags */ |
| 76 | static int insert; /* insert-mode flag */ |
| 77 | static int cset; /* 0 or 1: which char set */ |
| 78 | static int save_cset, save_csattr; /* saved with cursor position */ |
| 79 | static int rvideo; /* global reverse video flag */ |
| 80 | static int cursor_on; /* cursor enabled flag */ |
| 81 | static int reset_132; /* Flag ESC c resets to 80 cols */ |
| 82 | static int use_bce; /* Use Background coloured erase */ |
| 83 | static int blinker; /* When blinking is the cursor on ? */ |
| 84 | static int tblinker; /* When the blinking text is on */ |
| 85 | static int blink_is_real; /* Actually blink blinking text */ |
| 86 | |
| 87 | static unsigned long cset_attr[2]; |
| 88 | |
| 89 | /* |
| 90 | * Saved settings on the alternate screen. |
| 91 | */ |
| 92 | static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset; |
| 93 | static int alt_t, alt_b; |
| 94 | static int alt_which; |
| 95 | |
| 96 | #define ARGS_MAX 32 /* max # of esc sequence arguments */ |
| 97 | #define ARG_DEFAULT 0 /* if an arg isn't specified */ |
| 98 | #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) |
| 99 | static int esc_args[ARGS_MAX]; |
| 100 | static int esc_nargs; |
| 101 | static int esc_query; |
| 102 | #define ANSI(x,y) ((x)+((y)<<8)) |
| 103 | #define ANSI_QUE(x) ANSI(x,TRUE) |
| 104 | |
| 105 | #define OSC_STR_MAX 2048 |
| 106 | static int osc_strlen; |
| 107 | static char osc_string[OSC_STR_MAX+1]; |
| 108 | static int osc_w; |
| 109 | |
| 110 | static char id_string[1024] = "\033[?6c"; |
| 111 | |
| 112 | static unsigned char *tabs; |
| 113 | |
| 114 | static enum { |
| 115 | TOPLEVEL, |
| 116 | SEEN_ESC, |
| 117 | SEEN_CSI, |
| 118 | SEEN_OSC, |
| 119 | SEEN_OSC_W, |
| 120 | |
| 121 | DO_CTRLS, |
| 122 | |
| 123 | IGNORE_NEXT, |
| 124 | SET_GL, SET_GR, |
| 125 | SEEN_OSC_P, |
| 126 | OSC_STRING, OSC_MAYBE_ST, |
| 127 | SEEN_ESCHASH, |
| 128 | VT52_ESC, |
| 129 | VT52_Y1, |
| 130 | VT52_Y2 |
| 131 | } termstate; |
| 132 | |
| 133 | static enum { |
| 134 | NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED |
| 135 | } selstate; |
| 136 | static enum { |
| 137 | SM_CHAR, SM_WORD, SM_LINE |
| 138 | } selmode; |
| 139 | static unsigned long *selstart, *selend, *selanchor; |
| 140 | |
| 141 | static short wordness[256] = { |
| 142 | 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 */ |
| 143 | 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 */ |
| 144 | 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 */ |
| 145 | 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 */ |
| 146 | 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 */ |
| 147 | 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 */ |
| 148 | 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 */ |
| 149 | 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 */ |
| 150 | }; |
| 151 | |
| 152 | static unsigned char sel_nl[] = SEL_NL; |
| 153 | static char * paste_buffer = 0; |
| 154 | static int paste_len, paste_pos, paste_hold; |
| 155 | |
| 156 | /* |
| 157 | * Internal prototypes. |
| 158 | */ |
| 159 | static void do_paint (Context, int); |
| 160 | static void erase_lots (int, int, int); |
| 161 | static void swap_screen (int); |
| 162 | static void update_sbar (void); |
| 163 | static void deselect (void); |
| 164 | |
| 165 | /* |
| 166 | * Set up power-on settings for the terminal. |
| 167 | */ |
| 168 | static void power_on(void) { |
| 169 | curs_x = curs_y = alt_x = alt_y = save_x = save_y = 0; |
| 170 | alt_t = marg_t = 0; |
| 171 | if (rows != -1) |
| 172 | alt_b = marg_b = rows - 1; |
| 173 | else |
| 174 | alt_b = marg_b = 0; |
| 175 | if (cols != -1) { |
| 176 | int i; |
| 177 | for (i = 0; i < cols; i++) |
| 178 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
| 179 | } |
| 180 | alt_om = dec_om = cfg.dec_om; |
| 181 | alt_wnext = wrapnext = alt_ins = insert = FALSE; |
| 182 | alt_wrap = wrap = cfg.wrap_mode; |
| 183 | alt_cset = cset = 0; |
| 184 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
| 185 | rvideo = 0; |
| 186 | cursor_on = 1; |
| 187 | save_attr = curr_attr = ATTR_DEFAULT; |
| 188 | app_cursor_keys = cfg.app_cursor; |
| 189 | app_keypad_keys = cfg.app_keypad; |
| 190 | use_bce = cfg.bce; |
| 191 | blink_is_real = cfg.blinktext; |
| 192 | erase_char = ERASE_CHAR; |
| 193 | alt_which = 0; |
| 194 | { |
| 195 | int i; |
| 196 | for (i = 0; i < 256; i++) |
| 197 | wordness[i] = cfg.wordness[i]; |
| 198 | } |
| 199 | if (text) { |
| 200 | swap_screen (1); |
| 201 | erase_lots (FALSE, TRUE, TRUE); |
| 202 | swap_screen (0); |
| 203 | erase_lots (FALSE, TRUE, TRUE); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | /* |
| 208 | * Force a screen update. |
| 209 | */ |
| 210 | void term_update(void) { |
| 211 | Context ctx; |
| 212 | ctx = get_ctx(); |
| 213 | if (ctx) { |
| 214 | if ( (seen_key_event && (cfg.scroll_on_key)) || |
| 215 | (seen_disp_event && (!cfg.scroll_on_key)) ) { |
| 216 | disptop = scrtop; |
| 217 | seen_disp_event = seen_key_event = 0; |
| 218 | } |
| 219 | do_paint (ctx, TRUE); |
| 220 | sys_cursor(curs_x, curs_y + (scrtop - disptop) / (cols+1)); |
| 221 | free_ctx (ctx); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | /* |
| 226 | * Same as power_on(), but an external function. |
| 227 | */ |
| 228 | void term_pwron(void) { |
| 229 | power_on(); |
| 230 | fix_cpos; |
| 231 | disptop = scrtop; |
| 232 | deselect(); |
| 233 | term_update(); |
| 234 | } |
| 235 | |
| 236 | /* |
| 237 | * Clear the scrollback. |
| 238 | */ |
| 239 | void term_clrsb(void) { |
| 240 | disptop = sbtop = scrtop; |
| 241 | update_sbar(); |
| 242 | } |
| 243 | |
| 244 | /* |
| 245 | * Initialise the terminal. |
| 246 | */ |
| 247 | void term_init(void) { |
| 248 | text = sbtop = sbbot = scrtop = disptop = cpos = NULL; |
| 249 | disptext = wanttext = NULL; |
| 250 | tabs = NULL; |
| 251 | selspace = NULL; |
| 252 | deselect(); |
| 253 | rows = cols = -1; |
| 254 | power_on(); |
| 255 | } |
| 256 | |
| 257 | /* |
| 258 | * Set up the terminal for a given size. |
| 259 | */ |
| 260 | void term_size(int newrows, int newcols, int newsavelines) { |
| 261 | unsigned long *newtext, *newdisp, *newwant, *newalt; |
| 262 | int i, j, crows, ccols; |
| 263 | |
| 264 | int save_alt_which = alt_which; |
| 265 | |
| 266 | if (newrows == rows && newcols == cols && newsavelines == savelines) |
| 267 | return; /* nothing to do */ |
| 268 | |
| 269 | deselect(); |
| 270 | swap_screen(0); |
| 271 | |
| 272 | alt_t = marg_t = 0; |
| 273 | alt_b = marg_b = newrows - 1; |
| 274 | |
| 275 | newtext = smalloc ((newrows+newsavelines)*(newcols+1)*TSIZE); |
| 276 | sbbot = newtext + newsavelines*(newcols+1); |
| 277 | for (i=0; i<(newrows+newsavelines)*(newcols+1); i++) |
| 278 | newtext[i] = erase_char; |
| 279 | if (rows != -1) { |
| 280 | crows = rows + (scrtop - sbtop) / (cols+1); |
| 281 | if (crows > newrows+newsavelines) |
| 282 | crows = newrows+newsavelines; |
| 283 | if (newrows>crows) |
| 284 | disptop = newtext; |
| 285 | else |
| 286 | disptop = newtext + (crows-newrows)*(newcols+1); |
| 287 | ccols = (cols < newcols ? cols : newcols); |
| 288 | for (i=0; i<crows; i++) { |
| 289 | int oldidx = (rows - crows + i) * (cols+1); |
| 290 | int newidx = (newrows - crows + i) * (newcols+1); |
| 291 | |
| 292 | for (j=0; j<ccols; j++) |
| 293 | disptop[newidx+j] = scrtop[oldidx+j]; |
| 294 | disptop[newidx+newcols] = |
| 295 | (cols == newcols ? scrtop[oldidx+cols] |
| 296 | : (scrtop[oldidx+cols]&LATTR_MODE)); |
| 297 | } |
| 298 | sbtop = newtext; |
| 299 | } else { |
| 300 | sbtop = disptop = newtext; |
| 301 | } |
| 302 | scrtop = disptop; |
| 303 | sfree (text); |
| 304 | text = newtext; |
| 305 | |
| 306 | newdisp = smalloc (newrows*(newcols+1)*TSIZE); |
| 307 | for (i=0; i<newrows*(newcols+1); i++) |
| 308 | newdisp[i] = ATTR_INVALID; |
| 309 | sfree (disptext); |
| 310 | disptext = newdisp; |
| 311 | |
| 312 | newwant = smalloc (newrows*(newcols+1)*TSIZE); |
| 313 | for (i=0; i<newrows*(newcols+1); i++) |
| 314 | newwant[i] = ATTR_INVALID; |
| 315 | sfree (wanttext); |
| 316 | wanttext = newwant; |
| 317 | |
| 318 | newalt = smalloc (newrows*(newcols+1)*TSIZE); |
| 319 | for (i=0; i<newrows*(newcols+1); i++) |
| 320 | newalt[i] = erase_char; |
| 321 | sfree (alttext); |
| 322 | alttext = newalt; |
| 323 | |
| 324 | sfree (selspace); |
| 325 | selspace = smalloc ( (newrows+newsavelines) * (newcols+sizeof(sel_nl)) ); |
| 326 | |
| 327 | tabs = srealloc (tabs, newcols*sizeof(*tabs)); |
| 328 | { |
| 329 | int i; |
| 330 | for (i = (cols > 0 ? cols : 0); i < newcols; i++) |
| 331 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
| 332 | } |
| 333 | |
| 334 | if (rows > 0) |
| 335 | curs_y += newrows - rows; |
| 336 | if (curs_y < 0) |
| 337 | curs_y = 0; |
| 338 | if (curs_y >= newrows) |
| 339 | curs_y = newrows-1; |
| 340 | if (curs_x >= newcols) |
| 341 | curs_x = newcols-1; |
| 342 | alt_x = alt_y = 0; |
| 343 | wrapnext = alt_wnext = FALSE; |
| 344 | |
| 345 | rows = newrows; |
| 346 | cols = newcols; |
| 347 | savelines = newsavelines; |
| 348 | fix_cpos; |
| 349 | |
| 350 | swap_screen(save_alt_which); |
| 351 | |
| 352 | update_sbar(); |
| 353 | term_update(); |
| 354 | } |
| 355 | |
| 356 | /* |
| 357 | * Swap screens. |
| 358 | */ |
| 359 | static void swap_screen (int which) { |
| 360 | int t; |
| 361 | unsigned long tt; |
| 362 | |
| 363 | if (which == alt_which) |
| 364 | return; |
| 365 | |
| 366 | alt_which = which; |
| 367 | |
| 368 | for (t=0; t<rows*(cols+1); t++) { |
| 369 | tt = scrtop[t]; scrtop[t] = alttext[t]; alttext[t] = tt; |
| 370 | } |
| 371 | |
| 372 | t = curs_x; curs_x = alt_x; alt_x = t; |
| 373 | t = curs_y; curs_y = alt_y; alt_y = t; |
| 374 | t = marg_t; marg_t = alt_t; alt_t = t; |
| 375 | t = marg_b; marg_b = alt_b; alt_b = t; |
| 376 | t = dec_om; dec_om = alt_om; alt_om = t; |
| 377 | t = wrap; wrap = alt_wrap; alt_wrap = t; |
| 378 | t = wrapnext; wrapnext = alt_wnext; alt_wnext = t; |
| 379 | t = insert; insert = alt_ins; alt_ins = t; |
| 380 | t = cset; cset = alt_cset; alt_cset = t; |
| 381 | |
| 382 | fix_cpos; |
| 383 | } |
| 384 | |
| 385 | /* |
| 386 | * Update the scroll bar. |
| 387 | */ |
| 388 | static void update_sbar(void) { |
| 389 | int min; |
| 390 | |
| 391 | min = (sbtop - text) / (cols+1); |
| 392 | set_sbar ((scrtop - text) / (cols+1) + rows - min, |
| 393 | (disptop - text) / (cols+1) - min, |
| 394 | rows); |
| 395 | } |
| 396 | |
| 397 | /* |
| 398 | * Check whether the region bounded by the two pointers intersects |
| 399 | * the scroll region, and de-select the on-screen selection if so. |
| 400 | */ |
| 401 | static void check_selection (unsigned long *from, unsigned long *to) { |
| 402 | if (from < selend && selstart < to) |
| 403 | deselect(); |
| 404 | } |
| 405 | |
| 406 | /* |
| 407 | * Scroll the screen. (`lines' is +ve for scrolling forward, -ve |
| 408 | * for backward.) `sb' is TRUE if the scrolling is permitted to |
| 409 | * affect the scrollback buffer. |
| 410 | */ |
| 411 | static void scroll (int topline, int botline, int lines, int sb) { |
| 412 | unsigned long *scroll_top; |
| 413 | unsigned long *newscr; |
| 414 | int scroll_size, size, i; |
| 415 | int scrtop_is_disptop = (scrtop==disptop); |
| 416 | static int recursive = 0; |
| 417 | |
| 418 | /* Only scroll more than the window if we're doing a 10% scroll */ |
| 419 | if (!recursive && lines > botline - topline + 1) |
| 420 | lines = botline - topline + 1; |
| 421 | |
| 422 | scroll_top = scrtop + topline*(cols+1); |
| 423 | size = (lines < 0 ? -lines : lines) * (cols+1); |
| 424 | scroll_size = (botline - topline + 1) * (cols+1) - size; |
| 425 | |
| 426 | if (lines > 0 && topline == 0 && alt_which == 0 && sb) { |
| 427 | /* |
| 428 | * Since we're going to scroll the top line and we're on the |
| 429 | * scrolling screen let's also effect the scrollback buffer. |
| 430 | * |
| 431 | * This is normally done by moving the position the screen |
| 432 | * painter reads from to reduce the amount of memory copying |
| 433 | * required. |
| 434 | */ |
| 435 | if (scroll_size >= 0 && !recursive) { |
| 436 | newscr = scrtop + lines * (cols+1); |
| 437 | |
| 438 | if (newscr > sbbot && botline == rows-1) { |
| 439 | /* We've hit the bottom of memory, so we have to do a |
| 440 | * physical scroll. But instead of just 1 line do it |
| 441 | * by 10% of the available memory. |
| 442 | * |
| 443 | * If the scroll region isn't the whole screen then we can't |
| 444 | * do this as it stands. We would need to recover the bottom |
| 445 | * of the screen from the scroll buffer after being sure that |
| 446 | * it doesn't get deleted. |
| 447 | */ |
| 448 | |
| 449 | i = (rows+savelines)/10; |
| 450 | |
| 451 | /* Make it simple and ensure safe recursion */ |
| 452 | if ( i<savelines-1) { |
| 453 | recursive ++; |
| 454 | scroll(topline, botline, i, sb); |
| 455 | recursive --; |
| 456 | |
| 457 | newscr = scrtop - i * (cols+1); |
| 458 | if (scrtop_is_disptop) disptop = newscr; |
| 459 | scrtop = newscr; |
| 460 | } |
| 461 | |
| 462 | newscr = scrtop + lines * (cols+1); |
| 463 | } |
| 464 | |
| 465 | if (newscr <= sbbot) { |
| 466 | if (scrtop_is_disptop) disptop = newscr; |
| 467 | scrtop = newscr; |
| 468 | |
| 469 | if (botline == rows-1 ) |
| 470 | for (i = 0; i < size; i++) |
| 471 | scrtop[i+scroll_size] = erase_char; |
| 472 | |
| 473 | update_sbar(); |
| 474 | fix_cpos; |
| 475 | |
| 476 | if (botline != rows-1) { |
| 477 | /* This fastscroll only works for full window scrolls. |
| 478 | * If the caller wanted a partial one we have to reverse |
| 479 | * scroll the bottom of the screen. |
| 480 | */ |
| 481 | scroll(botline-lines+1, rows-1, -lines, 0); |
| 482 | } |
| 483 | return ; |
| 484 | } |
| 485 | |
| 486 | /* If we can't scroll by memory remapping do it physically. |
| 487 | * But rather than expensivly doing the scroll buffer just |
| 488 | * scroll the screen. All it means is that sometimes we choose |
| 489 | * to not add lines from a scroll region to the scroll buffer. |
| 490 | */ |
| 491 | |
| 492 | if (savelines <= 400) { |
| 493 | sbtop -= lines * (cols+1); |
| 494 | if (sbtop < text) |
| 495 | sbtop = text; |
| 496 | scroll_size += scroll_top - sbtop; |
| 497 | scroll_top = sbtop; |
| 498 | |
| 499 | update_sbar(); |
| 500 | } |
| 501 | } else { |
| 502 | /* Ho hum, expensive scroll required. */ |
| 503 | |
| 504 | sbtop -= lines * (cols+1); |
| 505 | if (sbtop < text) |
| 506 | sbtop = text; |
| 507 | scroll_size += scroll_top - sbtop; |
| 508 | scroll_top = sbtop; |
| 509 | |
| 510 | update_sbar(); |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | if (scroll_size < 0) { |
| 515 | size += scroll_size; |
| 516 | scroll_size = 0; |
| 517 | } |
| 518 | |
| 519 | if (lines > 0) { |
| 520 | if (scroll_size) |
| 521 | memmove (scroll_top, scroll_top + size, scroll_size*TSIZE); |
| 522 | for (i = 0; i < size; i++) |
| 523 | scroll_top[i+scroll_size] = erase_char; |
| 524 | if (selstart > scroll_top && |
| 525 | selstart < scroll_top + size + scroll_size) { |
| 526 | selstart -= size; |
| 527 | if (selstart < scroll_top) |
| 528 | selstart = scroll_top; |
| 529 | } |
| 530 | if (selend > scroll_top && |
| 531 | selend < scroll_top + size + scroll_size) { |
| 532 | selend -= size; |
| 533 | if (selend < scroll_top) |
| 534 | selend = scroll_top; |
| 535 | } |
| 536 | if (scrtop_is_disptop) |
| 537 | disptop = scrtop; |
| 538 | else |
| 539 | if (disptop > scroll_top && |
| 540 | disptop < scroll_top + size + scroll_size) { |
| 541 | disptop -= size; |
| 542 | if (disptop < scroll_top) |
| 543 | disptop = scroll_top; |
| 544 | } |
| 545 | } else { |
| 546 | if (scroll_size) |
| 547 | memmove (scroll_top + size, scroll_top, scroll_size*TSIZE); |
| 548 | for (i = 0; i < size; i++) |
| 549 | scroll_top[i] = erase_char; |
| 550 | if (selstart > scroll_top && |
| 551 | selstart < scroll_top + size + scroll_size) { |
| 552 | selstart += size; |
| 553 | if (selstart > scroll_top + size + scroll_size) |
| 554 | selstart = scroll_top + size + scroll_size; |
| 555 | } |
| 556 | if (selend > scroll_top && |
| 557 | selend < scroll_top + size + scroll_size) { |
| 558 | selend += size; |
| 559 | if (selend > scroll_top + size + scroll_size) |
| 560 | selend = scroll_top + size + scroll_size; |
| 561 | } |
| 562 | if (scrtop_is_disptop) |
| 563 | disptop = scrtop; |
| 564 | else if (disptop > scroll_top && |
| 565 | disptop < scroll_top + size + scroll_size) { |
| 566 | disptop += size; |
| 567 | if (disptop > scroll_top + size + scroll_size) |
| 568 | disptop = scroll_top + size + scroll_size; |
| 569 | } |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | /* |
| 574 | * Move the cursor to a given position, clipping at boundaries. We |
| 575 | * may or may not want to clip at the scroll margin: marg_clip is 0 |
| 576 | * not to, 1 to disallow _passing_ the margins, and 2 to disallow |
| 577 | * even _being_ outside the margins. |
| 578 | */ |
| 579 | static void move (int x, int y, int marg_clip) { |
| 580 | if (x < 0) |
| 581 | x = 0; |
| 582 | if (x >= cols) |
| 583 | x = cols-1; |
| 584 | if (marg_clip) { |
| 585 | if ((curs_y >= marg_t || marg_clip == 2) && y < marg_t) |
| 586 | y = marg_t; |
| 587 | if ((curs_y <= marg_b || marg_clip == 2) && y > marg_b) |
| 588 | y = marg_b; |
| 589 | } |
| 590 | if (y < 0) |
| 591 | y = 0; |
| 592 | if (y >= rows) |
| 593 | y = rows-1; |
| 594 | curs_x = x; |
| 595 | curs_y = y; |
| 596 | fix_cpos; |
| 597 | wrapnext = FALSE; |
| 598 | } |
| 599 | |
| 600 | /* |
| 601 | * Save or restore the cursor and SGR mode. |
| 602 | */ |
| 603 | static void save_cursor(int save) { |
| 604 | if (save) { |
| 605 | save_x = curs_x; |
| 606 | save_y = curs_y; |
| 607 | save_attr = curr_attr; |
| 608 | save_cset = cset; |
| 609 | save_csattr = cset_attr[cset]; |
| 610 | } else { |
| 611 | curs_x = save_x; |
| 612 | curs_y = save_y; |
| 613 | /* Make sure the window hasn't shrunk since the save */ |
| 614 | if (curs_x >= cols) curs_x = cols-1; |
| 615 | if (curs_y >= rows) curs_y = rows-1; |
| 616 | |
| 617 | curr_attr = save_attr; |
| 618 | cset = save_cset; |
| 619 | cset_attr[cset] = save_csattr; |
| 620 | fix_cpos; |
| 621 | if (use_bce) erase_char = (' ' |(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
| 622 | } |
| 623 | } |
| 624 | |
| 625 | /* |
| 626 | * Erase a large portion of the screen: the whole screen, or the |
| 627 | * whole line, or parts thereof. |
| 628 | */ |
| 629 | static void erase_lots (int line_only, int from_begin, int to_end) { |
| 630 | unsigned long *startpos, *endpos; |
| 631 | |
| 632 | if (line_only) { |
| 633 | startpos = cpos - curs_x; |
| 634 | endpos = startpos + cols; |
| 635 | /* I've removed the +1 so that the Wide screen stuff is not |
| 636 | * removed when it shouldn't be. |
| 637 | */ |
| 638 | } else { |
| 639 | startpos = scrtop; |
| 640 | endpos = startpos + rows * (cols+1); |
| 641 | } |
| 642 | if (!from_begin) |
| 643 | startpos = cpos; |
| 644 | if (!to_end) |
| 645 | endpos = cpos+1; |
| 646 | check_selection (startpos, endpos); |
| 647 | |
| 648 | /* Clear screen also forces a full window redraw, just in case. */ |
| 649 | if (startpos == scrtop && endpos == scrtop + rows * (cols+1)) |
| 650 | term_invalidate(); |
| 651 | |
| 652 | while (startpos < endpos) |
| 653 | *startpos++ = erase_char; |
| 654 | } |
| 655 | |
| 656 | /* |
| 657 | * Insert or delete characters within the current line. n is +ve if |
| 658 | * insertion is desired, and -ve for deletion. |
| 659 | */ |
| 660 | static void insch (int n) { |
| 661 | int dir = (n < 0 ? -1 : +1); |
| 662 | int m; |
| 663 | |
| 664 | n = (n < 0 ? -n : n); |
| 665 | if (n > cols - curs_x) |
| 666 | n = cols - curs_x; |
| 667 | m = cols - curs_x - n; |
| 668 | check_selection (cpos, cpos+n); |
| 669 | if (dir < 0) { |
| 670 | memmove (cpos, cpos+n, m*TSIZE); |
| 671 | while (n--) |
| 672 | cpos[m++] = erase_char; |
| 673 | } else { |
| 674 | memmove (cpos+n, cpos, m*TSIZE); |
| 675 | while (n--) |
| 676 | cpos[n] = erase_char; |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | /* |
| 681 | * Toggle terminal mode `mode' to state `state'. (`query' indicates |
| 682 | * whether the mode is a DEC private one or a normal one.) |
| 683 | */ |
| 684 | static void toggle_mode (int mode, int query, int state) { |
| 685 | if (query) switch (mode) { |
| 686 | case 1: /* application cursor keys */ |
| 687 | app_cursor_keys = state; |
| 688 | break; |
| 689 | case 2: /* VT52 mode */ |
| 690 | vt52_mode = !state; |
| 691 | break; |
| 692 | case 3: /* 80/132 columns */ |
| 693 | deselect(); |
| 694 | request_resize (state ? 132 : 80, rows, 1); |
| 695 | reset_132 = state; |
| 696 | break; |
| 697 | case 5: /* reverse video */ |
| 698 | rvideo = state; |
| 699 | seen_disp_event = TRUE; |
| 700 | if (state) term_update(); |
| 701 | break; |
| 702 | case 6: /* DEC origin mode */ |
| 703 | dec_om = state; |
| 704 | break; |
| 705 | case 7: /* auto wrap */ |
| 706 | wrap = state; |
| 707 | break; |
| 708 | case 8: /* auto key repeat */ |
| 709 | repeat_off = !state; |
| 710 | break; |
| 711 | case 25: /* enable/disable cursor */ |
| 712 | compatibility2(OTHER,VT220); |
| 713 | cursor_on = state; |
| 714 | seen_disp_event = TRUE; |
| 715 | break; |
| 716 | case 47: /* alternate screen */ |
| 717 | compatibility(OTHER); |
| 718 | deselect(); |
| 719 | swap_screen (state); |
| 720 | disptop = scrtop; |
| 721 | break; |
| 722 | } else switch (mode) { |
| 723 | case 4: /* set insert mode */ |
| 724 | compatibility(VT102); |
| 725 | insert = state; |
| 726 | break; |
| 727 | case 12: /* set echo mode */ |
| 728 | /* |
| 729 | * This may be very good in smcup and rmcup (or smkx & rmkx) if you |
| 730 | * have a long RTT and the telnet client/daemon doesn't understand |
| 731 | * linemode. |
| 732 | * |
| 733 | * DONT send TS_RECHO/TS_LECHO; the telnet daemon tries to fix the |
| 734 | * tty and _really_ confuses some programs. |
| 735 | */ |
| 736 | compatibility2(OTHER,VT220); |
| 737 | ldisc = (state? &ldisc_simple : &ldisc_term); |
| 738 | break; |
| 739 | case 20: /* Return sends ... */ |
| 740 | cr_lf_return = state; |
| 741 | break; |
| 742 | } |
| 743 | } |
| 744 | |
| 745 | /* |
| 746 | * Process an OSC sequence: set window title or icon name. |
| 747 | */ |
| 748 | static void do_osc(void) { |
| 749 | if (osc_w) { |
| 750 | while (osc_strlen--) |
| 751 | wordness[(unsigned char)osc_string[osc_strlen]] = esc_args[0]; |
| 752 | } else { |
| 753 | osc_string[osc_strlen] = '\0'; |
| 754 | switch (esc_args[0]) { |
| 755 | case 0: |
| 756 | case 1: |
| 757 | set_icon (osc_string); |
| 758 | if (esc_args[0] == 1) |
| 759 | break; |
| 760 | /* fall through: parameter 0 means set both */ |
| 761 | case 2: |
| 762 | case 21: |
| 763 | set_title (osc_string); |
| 764 | break; |
| 765 | } |
| 766 | } |
| 767 | } |
| 768 | |
| 769 | /* |
| 770 | * Remove everything currently in `inbuf' and stick it up on the |
| 771 | * in-memory display. There's a big state machine in here to |
| 772 | * process escape sequences... |
| 773 | */ |
| 774 | void term_out(void) { |
| 775 | int c, inbuf_reap; |
| 776 | |
| 777 | static int beep_overload = 0; |
| 778 | int beep_count = 0; |
| 779 | |
| 780 | for(inbuf_reap = 0; inbuf_reap < inbuf_head; inbuf_reap++) |
| 781 | { |
| 782 | c = inbuf[inbuf_reap]; |
| 783 | |
| 784 | /* |
| 785 | * Optionally log the session traffic to a file. Useful for |
| 786 | * debugging and possibly also useful for actual logging. |
| 787 | */ |
| 788 | if (logfile) { |
| 789 | static FILE *fp = NULL; |
| 790 | if (!fp) fp = fopen(logfile, "wb"); |
| 791 | if (fp) fputc (c, fp); |
| 792 | } |
| 793 | /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even |
| 794 | * be able to display 8-bit characters, but I'll let that go 'cause |
| 795 | * of i18n. |
| 796 | */ |
| 797 | if( ( (c&0x60) == 0 || c == '\177') && |
| 798 | termstate < DO_CTRLS && |
| 799 | ( (c&0x80) == 0 || has_compat(VT220))) { |
| 800 | switch (c) { |
| 801 | case '\005': /* terminal type query */ |
| 802 | /* Strictly speaking this is VT100 but a VT100 defaults to |
| 803 | * no response. Other terminals respond at their option. |
| 804 | * |
| 805 | * Don't put a CR in the default string as this tends to |
| 806 | * upset some weird software. |
| 807 | * |
| 808 | * An xterm returns "xterm" (5 characters) |
| 809 | */ |
| 810 | compatibility(OTHER); |
| 811 | ldisc->send ("PuTTY", 5); |
| 812 | break; |
| 813 | case '\007': |
| 814 | beep_count++; |
| 815 | if(beep_count>6) beep_overload=1; |
| 816 | disptop = scrtop; |
| 817 | break; |
| 818 | case '\b': |
| 819 | if (curs_x == 0 && curs_y == 0) |
| 820 | ; |
| 821 | else if (curs_x == 0 && curs_y > 0) |
| 822 | curs_x = cols-1, curs_y--; |
| 823 | else if (wrapnext) |
| 824 | wrapnext = FALSE; |
| 825 | else |
| 826 | curs_x--; |
| 827 | fix_cpos; |
| 828 | seen_disp_event = TRUE; |
| 829 | break; |
| 830 | case '\016': |
| 831 | compatibility(VT100); |
| 832 | cset = 1; |
| 833 | break; |
| 834 | case '\017': |
| 835 | compatibility(VT100); |
| 836 | cset = 0; |
| 837 | break; |
| 838 | case '\033': |
| 839 | if (vt52_mode) |
| 840 | termstate = VT52_ESC; |
| 841 | else { |
| 842 | compatibility(ANSIMIN); |
| 843 | termstate = SEEN_ESC; |
| 844 | } |
| 845 | break; |
| 846 | case 0233: |
| 847 | compatibility(VT220); |
| 848 | termstate = SEEN_CSI; |
| 849 | esc_nargs = 1; |
| 850 | esc_args[0] = ARG_DEFAULT; |
| 851 | esc_query = FALSE; |
| 852 | break; |
| 853 | case 0235: |
| 854 | compatibility(VT220); |
| 855 | termstate = SEEN_OSC; |
| 856 | esc_args[0] = 0; |
| 857 | break; |
| 858 | case '\r': |
| 859 | curs_x = 0; |
| 860 | wrapnext = FALSE; |
| 861 | fix_cpos; |
| 862 | seen_disp_event = TRUE; |
| 863 | paste_hold = 0; |
| 864 | break; |
| 865 | case '\013': |
| 866 | case '\014': |
| 867 | compatibility(VT100); |
| 868 | case '\n': |
| 869 | if (curs_y == marg_b) |
| 870 | scroll (marg_t, marg_b, 1, TRUE); |
| 871 | else if (curs_y < rows-1) |
| 872 | curs_y++; |
| 873 | if (cfg.lfhascr) |
| 874 | curs_x = 0; |
| 875 | fix_cpos; |
| 876 | wrapnext = FALSE; |
| 877 | seen_disp_event = 1; |
| 878 | paste_hold = 0; |
| 879 | break; |
| 880 | case '\t': |
| 881 | { |
| 882 | unsigned long *old_cpos = cpos; |
| 883 | unsigned long *p = scrtop + curs_y * (cols+1) + cols; |
| 884 | |
| 885 | do { |
| 886 | curs_x++; |
| 887 | } while (curs_x < cols-1 && !tabs[curs_x]); |
| 888 | |
| 889 | if ((*p & LATTR_MODE) != LATTR_NORM) |
| 890 | { |
| 891 | if (curs_x >= cols/2) |
| 892 | curs_x = cols/2-1; |
| 893 | } |
| 894 | else |
| 895 | { |
| 896 | if (curs_x >= cols) |
| 897 | curs_x = cols-1; |
| 898 | } |
| 899 | |
| 900 | fix_cpos; |
| 901 | check_selection (old_cpos, cpos); |
| 902 | } |
| 903 | seen_disp_event = TRUE; |
| 904 | break; |
| 905 | case '\177': /* Destructive backspace |
| 906 | This does nothing on a real VT100 */ |
| 907 | compatibility(OTHER); |
| 908 | if (curs_x && !wrapnext) curs_x--; |
| 909 | wrapnext = FALSE; |
| 910 | fix_cpos; |
| 911 | *cpos = (' ' | curr_attr | ATTR_ASCII); |
| 912 | break; |
| 913 | } |
| 914 | } |
| 915 | else switch (termstate) { |
| 916 | case TOPLEVEL: |
| 917 | /* Only graphic characters get this far, ctrls are stripped above */ |
| 918 | if (wrapnext) { |
| 919 | cpos[1] |= ATTR_WRAPPED; |
| 920 | if (curs_y == marg_b) |
| 921 | scroll (marg_t, marg_b, 1, TRUE); |
| 922 | else if (curs_y < rows-1) |
| 923 | curs_y++; |
| 924 | curs_x = 0; |
| 925 | fix_cpos; |
| 926 | wrapnext = FALSE; |
| 927 | } |
| 928 | if (insert) |
| 929 | insch (1); |
| 930 | if (selstate != NO_SELECTION) |
| 931 | check_selection (cpos, cpos+1); |
| 932 | switch (cset_attr[cset]) { |
| 933 | /* Linedraw characters are different from 'ESC ( B' only |
| 934 | * for a small range, for ones outside that range make sure |
| 935 | * we use the same font as well as the same encoding. |
| 936 | */ |
| 937 | case ATTR_LINEDRW: |
| 938 | if (c<0x5f || c>0x7F) |
| 939 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
| 940 | ATTR_ASCII; |
| 941 | else if (c==0x5F) |
| 942 | *cpos++ = ' ' | curr_attr | ATTR_ASCII; |
| 943 | else |
| 944 | *cpos++ = ((unsigned char)c) | curr_attr | ATTR_LINEDRW; |
| 945 | break; |
| 946 | case ATTR_GBCHR: |
| 947 | /* If UK-ASCII, make the '#' a LineDraw Pound */ |
| 948 | if (c == '#') { |
| 949 | *cpos++ = '}' | curr_attr | ATTR_LINEDRW; |
| 950 | break; |
| 951 | } |
| 952 | /*FALLTHROUGH*/ |
| 953 | default: |
| 954 | *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | |
| 955 | (c <= 0x7F ? cset_attr[cset] : ATTR_ASCII); |
| 956 | break; |
| 957 | } |
| 958 | curs_x++; |
| 959 | if (curs_x == cols) { |
| 960 | cpos--; |
| 961 | curs_x--; |
| 962 | wrapnext = wrap; |
| 963 | } |
| 964 | seen_disp_event = 1; |
| 965 | break; |
| 966 | |
| 967 | case IGNORE_NEXT: |
| 968 | termstate = TOPLEVEL; |
| 969 | break; |
| 970 | case OSC_MAYBE_ST: |
| 971 | /* |
| 972 | * This state is virtually identical to SEEN_ESC, with the |
| 973 | * exception that we have an OSC sequence in the pipeline, |
| 974 | * and _if_ we see a backslash, we process it. |
| 975 | */ |
| 976 | if (c == '\\') { |
| 977 | do_osc(); |
| 978 | termstate = TOPLEVEL; |
| 979 | break; |
| 980 | } |
| 981 | /* else fall through */ |
| 982 | case SEEN_ESC: |
| 983 | termstate = TOPLEVEL; |
| 984 | switch (c) { |
| 985 | case ' ': /* some weird sequence? */ |
| 986 | compatibility(VT220); |
| 987 | termstate = IGNORE_NEXT; |
| 988 | break; |
| 989 | case '[': /* enter CSI mode */ |
| 990 | termstate = SEEN_CSI; |
| 991 | esc_nargs = 1; |
| 992 | esc_args[0] = ARG_DEFAULT; |
| 993 | esc_query = FALSE; |
| 994 | break; |
| 995 | case ']': /* xterm escape sequences */ |
| 996 | /* Compatibility is nasty here, xterm, linux, decterm yuk! */ |
| 997 | compatibility(OTHER); |
| 998 | termstate = SEEN_OSC; |
| 999 | esc_args[0] = 0; |
| 1000 | break; |
| 1001 | case '(': /* should set GL */ |
| 1002 | compatibility(VT100); |
| 1003 | termstate = SET_GL; |
| 1004 | break; |
| 1005 | case ')': /* should set GR */ |
| 1006 | compatibility(VT100); |
| 1007 | termstate = SET_GR; |
| 1008 | break; |
| 1009 | case '7': /* save cursor */ |
| 1010 | compatibility(VT100); |
| 1011 | save_cursor (TRUE); |
| 1012 | break; |
| 1013 | case '8': /* restore cursor */ |
| 1014 | compatibility(VT100); |
| 1015 | save_cursor (FALSE); |
| 1016 | seen_disp_event = TRUE; |
| 1017 | break; |
| 1018 | case '=': |
| 1019 | compatibility(VT100); |
| 1020 | app_keypad_keys = TRUE; |
| 1021 | break; |
| 1022 | case '>': |
| 1023 | compatibility(VT100); |
| 1024 | app_keypad_keys = FALSE; |
| 1025 | break; |
| 1026 | case 'D': /* exactly equivalent to LF */ |
| 1027 | compatibility(VT100); |
| 1028 | if (curs_y == marg_b) |
| 1029 | scroll (marg_t, marg_b, 1, TRUE); |
| 1030 | else if (curs_y < rows-1) |
| 1031 | curs_y++; |
| 1032 | fix_cpos; |
| 1033 | wrapnext = FALSE; |
| 1034 | seen_disp_event = TRUE; |
| 1035 | break; |
| 1036 | case 'E': /* exactly equivalent to CR-LF */ |
| 1037 | compatibility(VT100); |
| 1038 | curs_x = 0; |
| 1039 | if (curs_y == marg_b) |
| 1040 | scroll (marg_t, marg_b, 1, TRUE); |
| 1041 | else if (curs_y < rows-1) |
| 1042 | curs_y++; |
| 1043 | fix_cpos; |
| 1044 | wrapnext = FALSE; |
| 1045 | seen_disp_event = TRUE; |
| 1046 | break; |
| 1047 | case 'M': /* reverse index - backwards LF */ |
| 1048 | compatibility(VT100); |
| 1049 | if (curs_y == marg_t) |
| 1050 | scroll (marg_t, marg_b, -1, TRUE); |
| 1051 | else if (curs_y > 0) |
| 1052 | curs_y--; |
| 1053 | fix_cpos; |
| 1054 | wrapnext = FALSE; |
| 1055 | seen_disp_event = TRUE; |
| 1056 | break; |
| 1057 | case 'Z': /* terminal type query */ |
| 1058 | compatibility(VT100); |
| 1059 | ldisc->send (id_string, strlen(id_string)); |
| 1060 | break; |
| 1061 | case 'c': /* restore power-on settings */ |
| 1062 | compatibility(VT100); |
| 1063 | power_on(); |
| 1064 | if (reset_132) { |
| 1065 | request_resize (80, rows, 1); |
| 1066 | reset_132 = 0; |
| 1067 | } |
| 1068 | fix_cpos; |
| 1069 | disptop = scrtop; |
| 1070 | seen_disp_event = TRUE; |
| 1071 | break; |
| 1072 | case '#': /* ESC # 8 fills screen with Es :-) */ |
| 1073 | compatibility(VT100); |
| 1074 | termstate = SEEN_ESCHASH; |
| 1075 | break; |
| 1076 | case 'H': /* set a tab */ |
| 1077 | compatibility(VT100); |
| 1078 | tabs[curs_x] = TRUE; |
| 1079 | break; |
| 1080 | } |
| 1081 | break; |
| 1082 | case SEEN_CSI: |
| 1083 | termstate = TOPLEVEL; /* default */ |
| 1084 | if( isdigit(c) ) |
| 1085 | { |
| 1086 | if (esc_nargs <= ARGS_MAX) { |
| 1087 | if (esc_args[esc_nargs-1] == ARG_DEFAULT) |
| 1088 | esc_args[esc_nargs-1] = 0; |
| 1089 | esc_args[esc_nargs-1] = |
| 1090 | 10 * esc_args[esc_nargs-1] + c - '0'; |
| 1091 | } |
| 1092 | termstate = SEEN_CSI; |
| 1093 | } |
| 1094 | else if( c == ';' ) |
| 1095 | { |
| 1096 | if (++esc_nargs <= ARGS_MAX) |
| 1097 | esc_args[esc_nargs-1] = ARG_DEFAULT; |
| 1098 | termstate = SEEN_CSI; |
| 1099 | } |
| 1100 | else if( c < '@' ) |
| 1101 | { |
| 1102 | if( esc_query ) esc_query = -1; |
| 1103 | else if( c == '?' ) esc_query = TRUE; |
| 1104 | else esc_query = c; |
| 1105 | termstate = SEEN_CSI; |
| 1106 | } |
| 1107 | else switch (ANSI(c,esc_query)) { |
| 1108 | case 'A': /* move up N lines */ |
| 1109 | move (curs_x, curs_y - def(esc_args[0], 1), 1); |
| 1110 | seen_disp_event = TRUE; |
| 1111 | break; |
| 1112 | case 'e': /* move down N lines */ |
| 1113 | compatibility(ANSI); |
| 1114 | case 'B': |
| 1115 | move (curs_x, curs_y + def(esc_args[0], 1), 1); |
| 1116 | seen_disp_event = TRUE; |
| 1117 | break; |
| 1118 | case 'a': /* move right N cols */ |
| 1119 | compatibility(ANSI); |
| 1120 | case 'C': |
| 1121 | move (curs_x + def(esc_args[0], 1), curs_y, 1); |
| 1122 | seen_disp_event = TRUE; |
| 1123 | break; |
| 1124 | case 'D': /* move left N cols */ |
| 1125 | move (curs_x - def(esc_args[0], 1), curs_y, 1); |
| 1126 | seen_disp_event = TRUE; |
| 1127 | break; |
| 1128 | case 'E': /* move down N lines and CR */ |
| 1129 | compatibility(ANSI); |
| 1130 | move (0, curs_y + def(esc_args[0], 1), 1); |
| 1131 | seen_disp_event = TRUE; |
| 1132 | break; |
| 1133 | case 'F': /* move up N lines and CR */ |
| 1134 | compatibility(ANSI); |
| 1135 | move (0, curs_y - def(esc_args[0], 1), 1); |
| 1136 | seen_disp_event = TRUE; |
| 1137 | break; |
| 1138 | case 'G': case '`': /* set horizontal posn */ |
| 1139 | compatibility(ANSI); |
| 1140 | move (def(esc_args[0], 1) - 1, curs_y, 0); |
| 1141 | seen_disp_event = TRUE; |
| 1142 | break; |
| 1143 | case 'd': /* set vertical posn */ |
| 1144 | compatibility(ANSI); |
| 1145 | move (curs_x, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
| 1146 | (dec_om ? 2 : 0)); |
| 1147 | seen_disp_event = TRUE; |
| 1148 | break; |
| 1149 | case 'H': case 'f': /* set horz and vert posns at once */ |
| 1150 | if (esc_nargs < 2) |
| 1151 | esc_args[1] = ARG_DEFAULT; |
| 1152 | move (def(esc_args[1], 1) - 1, |
| 1153 | (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, |
| 1154 | (dec_om ? 2 : 0)); |
| 1155 | seen_disp_event = TRUE; |
| 1156 | break; |
| 1157 | case 'J': /* erase screen or parts of it */ |
| 1158 | { |
| 1159 | unsigned int i = def(esc_args[0], 0) + 1; |
| 1160 | if (i > 3) |
| 1161 | i = 0; |
| 1162 | erase_lots(FALSE, !!(i & 2), !!(i & 1)); |
| 1163 | } |
| 1164 | disptop = scrtop; |
| 1165 | seen_disp_event = TRUE; |
| 1166 | break; |
| 1167 | case 'K': /* erase line or parts of it */ |
| 1168 | { |
| 1169 | unsigned int i = def(esc_args[0], 0) + 1; |
| 1170 | if (i > 3) |
| 1171 | i = 0; |
| 1172 | erase_lots(TRUE, !!(i & 2), !!(i & 1)); |
| 1173 | } |
| 1174 | seen_disp_event = TRUE; |
| 1175 | break; |
| 1176 | case 'L': /* insert lines */ |
| 1177 | compatibility(VT102); |
| 1178 | if (curs_y <= marg_b) |
| 1179 | scroll (curs_y, marg_b, -def(esc_args[0], 1), FALSE); |
| 1180 | seen_disp_event = TRUE; |
| 1181 | break; |
| 1182 | case 'M': /* delete lines */ |
| 1183 | compatibility(VT102); |
| 1184 | if (curs_y <= marg_b) |
| 1185 | scroll (curs_y, marg_b, def(esc_args[0], 1), TRUE); |
| 1186 | seen_disp_event = TRUE; |
| 1187 | break; |
| 1188 | case '@': /* insert chars */ |
| 1189 | /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ |
| 1190 | compatibility(VT102); |
| 1191 | insch (def(esc_args[0], 1)); |
| 1192 | seen_disp_event = TRUE; |
| 1193 | break; |
| 1194 | case 'P': /* delete chars */ |
| 1195 | compatibility(VT102); |
| 1196 | insch (-def(esc_args[0], 1)); |
| 1197 | seen_disp_event = TRUE; |
| 1198 | break; |
| 1199 | case 'c': /* terminal type query */ |
| 1200 | compatibility(VT100); |
| 1201 | /* This is the response for a VT102 */ |
| 1202 | ldisc->send (id_string, strlen(id_string)); |
| 1203 | break; |
| 1204 | case 'n': /* cursor position query */ |
| 1205 | if (esc_args[0] == 6) { |
| 1206 | char buf[32]; |
| 1207 | sprintf (buf, "\033[%d;%dR", curs_y + 1, curs_x + 1); |
| 1208 | ldisc->send (buf, strlen(buf)); |
| 1209 | } |
| 1210 | else if (esc_args[0] == 5) { |
| 1211 | ldisc->send ("\033[0n", 4); |
| 1212 | } |
| 1213 | break; |
| 1214 | case 'h': /* toggle modes to high */ |
| 1215 | case ANSI_QUE('h'): |
| 1216 | compatibility(VT100); |
| 1217 | { |
| 1218 | int i; |
| 1219 | for (i=0; i<esc_nargs; i++) |
| 1220 | toggle_mode (esc_args[i], esc_query, TRUE); |
| 1221 | } |
| 1222 | break; |
| 1223 | case 'l': /* toggle modes to low */ |
| 1224 | case ANSI_QUE('l'): |
| 1225 | compatibility(VT100); |
| 1226 | { |
| 1227 | int i; |
| 1228 | for (i=0; i<esc_nargs; i++) |
| 1229 | toggle_mode (esc_args[i], esc_query, FALSE); |
| 1230 | } |
| 1231 | break; |
| 1232 | case 'g': /* clear tabs */ |
| 1233 | compatibility(VT100); |
| 1234 | if (esc_nargs == 1) { |
| 1235 | if (esc_args[0] == 0) { |
| 1236 | tabs[curs_x] = FALSE; |
| 1237 | } else if (esc_args[0] == 3) { |
| 1238 | int i; |
| 1239 | for (i = 0; i < cols; i++) |
| 1240 | tabs[i] = FALSE; |
| 1241 | } |
| 1242 | } |
| 1243 | break; |
| 1244 | case 'r': /* set scroll margins */ |
| 1245 | compatibility(VT100); |
| 1246 | if (esc_nargs <= 2) { |
| 1247 | int top, bot; |
| 1248 | top = def(esc_args[0], 1) - 1; |
| 1249 | bot = (esc_nargs <= 1 || esc_args[1] == 0 ? rows : |
| 1250 | def(esc_args[1], rows)) - 1; |
| 1251 | if (bot >= rows) |
| 1252 | bot = rows-1; |
| 1253 | /* VTTEST Bug 9 - if region is less than 2 lines |
| 1254 | * don't change region. |
| 1255 | */ |
| 1256 | if (bot-top > 0) { |
| 1257 | marg_t = top; |
| 1258 | marg_b = bot; |
| 1259 | curs_x = 0; |
| 1260 | /* |
| 1261 | * I used to think the cursor should be |
| 1262 | * placed at the top of the newly marginned |
| 1263 | * area. Apparently not: VMS TPU falls over |
| 1264 | * if so. |
| 1265 | * |
| 1266 | * Well actually it should for Origin mode - RDB |
| 1267 | */ |
| 1268 | curs_y = (dec_om ? marg_t : 0); |
| 1269 | fix_cpos; |
| 1270 | seen_disp_event = TRUE; |
| 1271 | } |
| 1272 | } |
| 1273 | break; |
| 1274 | case 'm': /* set graphics rendition */ |
| 1275 | { |
| 1276 | /* |
| 1277 | * A VT100 without the AVO only had one attribute, either |
| 1278 | * underline or reverse video depending on the cursor type, |
| 1279 | * this was selected by CSI 7m. |
| 1280 | * |
| 1281 | * case 2: |
| 1282 | * This is DIM on the VT100-AVO and VT102 |
| 1283 | * case 5: |
| 1284 | * This is BLINK on the VT100-AVO and VT102+ |
| 1285 | * case 8: |
| 1286 | * This is INVIS on the VT100-AVO and VT102 |
| 1287 | * case 21: |
| 1288 | * This like 22 disables BOLD, DIM and INVIS |
| 1289 | * |
| 1290 | * The ANSI colours appear on any terminal that has colour |
| 1291 | * (obviously) but the interaction between sgr0 and the |
| 1292 | * colours varies but is usually related to the background |
| 1293 | * colour erase item. |
| 1294 | * The interaction between colour attributes and the mono |
| 1295 | * ones is also very implementation dependent. |
| 1296 | * |
| 1297 | * The 39 and 49 attributes are likely to be unimplemented. |
| 1298 | */ |
| 1299 | int i; |
| 1300 | for (i=0; i<esc_nargs; i++) { |
| 1301 | switch (def(esc_args[i], 0)) { |
| 1302 | case 0: /* restore defaults */ |
| 1303 | curr_attr = ATTR_DEFAULT; break; |
| 1304 | case 1: /* enable bold */ |
| 1305 | compatibility(VT100AVO); |
| 1306 | curr_attr |= ATTR_BOLD; break; |
| 1307 | case 21: /* (enable double underline) */ |
| 1308 | compatibility(OTHER); |
| 1309 | case 4: /* enable underline */ |
| 1310 | compatibility(VT100AVO); |
| 1311 | curr_attr |= ATTR_UNDER; break; |
| 1312 | case 5: /* enable blink */ |
| 1313 | compatibility(VT100AVO); |
| 1314 | curr_attr |= ATTR_BLINK; break; |
| 1315 | case 7: /* enable reverse video */ |
| 1316 | curr_attr |= ATTR_REVERSE; break; |
| 1317 | case 22: /* disable bold */ |
| 1318 | compatibility2(OTHER,VT220); |
| 1319 | curr_attr &= ~ATTR_BOLD; break; |
| 1320 | case 24: /* disable underline */ |
| 1321 | compatibility2(OTHER,VT220); |
| 1322 | curr_attr &= ~ATTR_UNDER; break; |
| 1323 | case 25: /* disable blink */ |
| 1324 | compatibility2(OTHER,VT220); |
| 1325 | curr_attr &= ~ATTR_BLINK; break; |
| 1326 | case 27: /* disable reverse video */ |
| 1327 | compatibility2(OTHER,VT220); |
| 1328 | curr_attr &= ~ATTR_REVERSE; break; |
| 1329 | case 30: case 31: case 32: case 33: |
| 1330 | case 34: case 35: case 36: case 37: |
| 1331 | /* foreground */ |
| 1332 | curr_attr &= ~ATTR_FGMASK; |
| 1333 | curr_attr |= (esc_args[i] - 30) << ATTR_FGSHIFT; |
| 1334 | break; |
| 1335 | case 39: /* default-foreground */ |
| 1336 | curr_attr &= ~ATTR_FGMASK; |
| 1337 | curr_attr |= ATTR_DEFFG; |
| 1338 | break; |
| 1339 | case 40: case 41: case 42: case 43: |
| 1340 | case 44: case 45: case 46: case 47: |
| 1341 | /* background */ |
| 1342 | curr_attr &= ~ATTR_BGMASK; |
| 1343 | curr_attr |= (esc_args[i] - 40) << ATTR_BGSHIFT; |
| 1344 | break; |
| 1345 | case 49: /* default-background */ |
| 1346 | curr_attr &= ~ATTR_BGMASK; |
| 1347 | curr_attr |= ATTR_DEFBG; |
| 1348 | break; |
| 1349 | } |
| 1350 | } |
| 1351 | if (use_bce) |
| 1352 | erase_char = |
| 1353 | (' '| |
| 1354 | (curr_attr&(ATTR_FGMASK|ATTR_BGMASK|ATTR_BLINK)) |
| 1355 | ); |
| 1356 | } |
| 1357 | break; |
| 1358 | case 's': /* save cursor */ |
| 1359 | save_cursor (TRUE); |
| 1360 | break; |
| 1361 | case 'u': /* restore cursor */ |
| 1362 | save_cursor (FALSE); |
| 1363 | seen_disp_event = TRUE; |
| 1364 | break; |
| 1365 | case 't': /* set page size - ie window height */ |
| 1366 | /* |
| 1367 | * VT340/VT420 sequence DECSLPP, DEC only allows values |
| 1368 | * 24/25/36/48/72/144 other emulators (eg dtterm) use |
| 1369 | * illegal values (eg first arg 1..9) for window changing |
| 1370 | * and reports. |
| 1371 | */ |
| 1372 | compatibility(VT340TEXT); |
| 1373 | if (esc_nargs<=1 && (esc_args[0]<1 || esc_args[0]>=24)) { |
| 1374 | request_resize (cols, def(esc_args[0], 24), 0); |
| 1375 | deselect(); |
| 1376 | } |
| 1377 | break; |
| 1378 | case ANSI('|', '*'): |
| 1379 | /* VT420 sequence DECSNLS |
| 1380 | * Set number of lines on screen |
| 1381 | * VT420 uses VGA like hardware and can support any size in |
| 1382 | * reasonable range (24..49 AIUI) with no default specified. |
| 1383 | */ |
| 1384 | compatibility(VT420); |
| 1385 | if (esc_nargs==1 && esc_args[0]>0) { |
| 1386 | request_resize (cols, def(esc_args[0], cfg.height), 0); |
| 1387 | deselect(); |
| 1388 | } |
| 1389 | break; |
| 1390 | case ANSI('|', '$'): |
| 1391 | /* VT340/VT420 sequence DECSCPP |
| 1392 | * Set number of columns per page |
| 1393 | * Docs imply range is only 80 or 132, but I'll allow any. |
| 1394 | */ |
| 1395 | compatibility(VT340TEXT); |
| 1396 | if (esc_nargs<=1) { |
| 1397 | request_resize (def(esc_args[0], cfg.width), rows, 0); |
| 1398 | deselect(); |
| 1399 | } |
| 1400 | break; |
| 1401 | case 'X': /* write N spaces w/o moving cursor */ |
| 1402 | /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ |
| 1403 | compatibility(ANSIMIN); |
| 1404 | { |
| 1405 | int n = def(esc_args[0], 1); |
| 1406 | unsigned long *p = cpos; |
| 1407 | if (n > cols - curs_x) |
| 1408 | n = cols - curs_x; |
| 1409 | check_selection (cpos, cpos+n); |
| 1410 | while (n--) |
| 1411 | *p++ = erase_char; |
| 1412 | seen_disp_event = TRUE; |
| 1413 | } |
| 1414 | break; |
| 1415 | case 'x': /* report terminal characteristics */ |
| 1416 | compatibility(VT100); |
| 1417 | { |
| 1418 | char buf[32]; |
| 1419 | int i = def(esc_args[0], 0); |
| 1420 | if (i == 0 || i == 1) { |
| 1421 | strcpy (buf, "\033[2;1;1;112;112;1;0x"); |
| 1422 | buf[2] += i; |
| 1423 | ldisc->send (buf, 20); |
| 1424 | } |
| 1425 | } |
| 1426 | break; |
| 1427 | case ANSI('L','='): |
| 1428 | compatibility(OTHER); |
| 1429 | use_bce = (esc_args[0]<=0); |
| 1430 | erase_char = ERASE_CHAR; |
| 1431 | if (use_bce) |
| 1432 | erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); |
| 1433 | break; |
| 1434 | case ANSI('E','='): |
| 1435 | compatibility(OTHER); |
| 1436 | blink_is_real = (esc_args[0]>=1); |
| 1437 | break; |
| 1438 | case ANSI('p','"'): |
| 1439 | /* Allow the host to make this emulator a 'perfect' VT102. |
| 1440 | * This first appeared in the VT220, but we do need to get |
| 1441 | * back to PuTTY mode so I won't check it. |
| 1442 | * |
| 1443 | * The arg in 40..42 are a PuTTY extension. |
| 1444 | * The 2nd arg, 8bit vs 7bit is not checked. |
| 1445 | * |
| 1446 | * Setting VT102 mode should also change the Fkeys to |
| 1447 | * generate PF* codes as a real VT102 has no Fkeys. |
| 1448 | * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys |
| 1449 | * send nothing. |
| 1450 | * |
| 1451 | * Note ESC c will NOT change this! |
| 1452 | */ |
| 1453 | |
| 1454 | switch (esc_args[0]) { |
| 1455 | case 61: compatibility_level &= ~TM_VTXXX; |
| 1456 | compatibility_level |= TM_VT102; break; |
| 1457 | case 62: compatibility_level &= ~TM_VTXXX; |
| 1458 | compatibility_level |= TM_VT220; break; |
| 1459 | |
| 1460 | default: if( esc_args[0] > 60 && esc_args[0] < 70 ) |
| 1461 | compatibility_level |= TM_VTXXX; |
| 1462 | break; |
| 1463 | |
| 1464 | case 40: compatibility_level &= TM_VTXXX; break; |
| 1465 | case 41: compatibility_level = TM_PUTTY; break; |
| 1466 | case 42: compatibility_level = TM_SCOANSI; break; |
| 1467 | |
| 1468 | case ARG_DEFAULT: |
| 1469 | compatibility_level = TM_PUTTY; break; |
| 1470 | case 50: break; |
| 1471 | } |
| 1472 | |
| 1473 | /* Change the response to CSI c */ |
| 1474 | if (esc_args[0] == 50) { |
| 1475 | int i; |
| 1476 | char lbuf[64]; |
| 1477 | strcpy(id_string, "\033[?"); |
| 1478 | for (i=1; i<esc_nargs; i++) { |
| 1479 | if (i!=1) strcat(id_string, ";"); |
| 1480 | sprintf(lbuf, "%d", esc_args[i]); |
| 1481 | strcat(id_string, lbuf); |
| 1482 | } |
| 1483 | strcat(id_string, "c"); |
| 1484 | } |
| 1485 | |
| 1486 | #if 0 |
| 1487 | /* Is this a good idea ? |
| 1488 | * Well we should do a soft reset at this point ... |
| 1489 | */ |
| 1490 | if (!has_compat(VT420) && has_compat(VT100)) { |
| 1491 | if (reset_132) request_resize (132, 24, 1); |
| 1492 | else request_resize ( 80, 24, 1); |
| 1493 | } |
| 1494 | #endif |
| 1495 | break; |
| 1496 | } |
| 1497 | break; |
| 1498 | case SET_GL: |
| 1499 | case SET_GR: |
| 1500 | /* VT100 only here, checked above */ |
| 1501 | switch (c) { |
| 1502 | case 'A': |
| 1503 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_GBCHR; |
| 1504 | break; |
| 1505 | case '0': |
| 1506 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_LINEDRW; |
| 1507 | break; |
| 1508 | case 'B': |
| 1509 | default: /* specifically, 'B' */ |
| 1510 | cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_ASCII; |
| 1511 | break; |
| 1512 | } |
| 1513 | if( !has_compat(VT220) || c != '%' ) |
| 1514 | termstate = TOPLEVEL; |
| 1515 | break; |
| 1516 | case SEEN_OSC: |
| 1517 | osc_w = FALSE; |
| 1518 | switch (c) { |
| 1519 | case 'P': /* Linux palette sequence */ |
| 1520 | termstate = SEEN_OSC_P; |
| 1521 | osc_strlen = 0; |
| 1522 | break; |
| 1523 | case 'R': /* Linux palette reset */ |
| 1524 | palette_reset(); |
| 1525 | term_invalidate(); |
| 1526 | termstate = TOPLEVEL; |
| 1527 | break; |
| 1528 | case 'W': /* word-set */ |
| 1529 | termstate = SEEN_OSC_W; |
| 1530 | osc_w = TRUE; |
| 1531 | break; |
| 1532 | case '0': case '1': case '2': case '3': case '4': |
| 1533 | case '5': case '6': case '7': case '8': case '9': |
| 1534 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
| 1535 | break; |
| 1536 | case 'L': |
| 1537 | /* |
| 1538 | * Grotty hack to support xterm and DECterm title |
| 1539 | * sequences concurrently. |
| 1540 | */ |
| 1541 | if (esc_args[0] == 2) { |
| 1542 | esc_args[0] = 1; |
| 1543 | break; |
| 1544 | } |
| 1545 | /* else fall through */ |
| 1546 | default: |
| 1547 | termstate = OSC_STRING; |
| 1548 | osc_strlen = 0; |
| 1549 | } |
| 1550 | break; |
| 1551 | case OSC_STRING: |
| 1552 | /* |
| 1553 | * This OSC stuff is EVIL. It takes just one character to get into |
| 1554 | * sysline mode and it's not initially obvious how to get out. |
| 1555 | * So I've added CR and LF as string aborts. |
| 1556 | * This shouldn't effect compatibility as I believe embedded |
| 1557 | * control characters are supposed to be interpreted (maybe?) |
| 1558 | * and they don't display anything useful anyway. |
| 1559 | * |
| 1560 | * -- RDB |
| 1561 | */ |
| 1562 | if (c == '\n' || c == '\r') { |
| 1563 | termstate = TOPLEVEL; |
| 1564 | } else if (c == 0234 || c == '\007' ) { |
| 1565 | /* |
| 1566 | * These characters terminate the string; ST and BEL |
| 1567 | * terminate the sequence and trigger instant |
| 1568 | * processing of it, whereas ESC goes back to SEEN_ESC |
| 1569 | * mode unless it is followed by \, in which case it is |
| 1570 | * synonymous with ST in the first place. |
| 1571 | */ |
| 1572 | do_osc(); |
| 1573 | termstate = TOPLEVEL; |
| 1574 | } else if (c == '\033') |
| 1575 | termstate = OSC_MAYBE_ST; |
| 1576 | else if (osc_strlen < OSC_STR_MAX) |
| 1577 | osc_string[osc_strlen++] = c; |
| 1578 | break; |
| 1579 | case SEEN_OSC_P: |
| 1580 | { |
| 1581 | int max = (osc_strlen == 0 ? 21 : 16); |
| 1582 | int val; |
| 1583 | if (c >= '0' && c <= '9') |
| 1584 | val = c - '0'; |
| 1585 | else if (c >= 'A' && c <= 'A'+max-10) |
| 1586 | val = c - 'A' + 10; |
| 1587 | else if (c >= 'a' && c <= 'a'+max-10) |
| 1588 | val = c - 'a' + 10; |
| 1589 | else |
| 1590 | termstate = TOPLEVEL; |
| 1591 | osc_string[osc_strlen++] = val; |
| 1592 | if (osc_strlen >= 7) { |
| 1593 | palette_set (osc_string[0], |
| 1594 | osc_string[1] * 16 + osc_string[2], |
| 1595 | osc_string[3] * 16 + osc_string[4], |
| 1596 | osc_string[5] * 16 + osc_string[6]); |
| 1597 | term_invalidate(); |
| 1598 | termstate = TOPLEVEL; |
| 1599 | } |
| 1600 | } |
| 1601 | break; |
| 1602 | case SEEN_OSC_W: |
| 1603 | switch (c) { |
| 1604 | case '0': case '1': case '2': case '3': case '4': |
| 1605 | case '5': case '6': case '7': case '8': case '9': |
| 1606 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
| 1607 | break; |
| 1608 | default: |
| 1609 | termstate = OSC_STRING; |
| 1610 | osc_strlen = 0; |
| 1611 | } |
| 1612 | break; |
| 1613 | case SEEN_ESCHASH: |
| 1614 | { |
| 1615 | unsigned long *p; |
| 1616 | unsigned long nlattr; |
| 1617 | int n; |
| 1618 | |
| 1619 | switch (c) { |
| 1620 | case '8': |
| 1621 | p = scrtop; |
| 1622 | n = rows * (cols+1); |
| 1623 | while (n--) |
| 1624 | *p++ = ATTR_DEFAULT | 'E'; |
| 1625 | disptop = scrtop; |
| 1626 | seen_disp_event = TRUE; |
| 1627 | check_selection (scrtop, scrtop + rows * (cols+1)); |
| 1628 | break; |
| 1629 | |
| 1630 | case '3': nlattr = LATTR_TOP; if(0) { |
| 1631 | case '4': nlattr = LATTR_BOT; } if(0) { |
| 1632 | case '5': nlattr = LATTR_NORM; } if(0) { |
| 1633 | case '6': nlattr = LATTR_WIDE; } |
| 1634 | |
| 1635 | p = scrtop + curs_y * (cols+1) + cols; |
| 1636 | *p &= ~LATTR_MODE; |
| 1637 | *p |= nlattr; |
| 1638 | } |
| 1639 | } |
| 1640 | termstate = TOPLEVEL; |
| 1641 | break; |
| 1642 | case VT52_ESC: |
| 1643 | termstate = TOPLEVEL; |
| 1644 | seen_disp_event = TRUE; |
| 1645 | switch (c) { |
| 1646 | case 'A': |
| 1647 | move (curs_x, curs_y - 1, 1); |
| 1648 | break; |
| 1649 | case 'B': |
| 1650 | move (curs_x, curs_y + 1, 1); |
| 1651 | break; |
| 1652 | case 'C': |
| 1653 | move (curs_x + 1, curs_y, 1); |
| 1654 | break; |
| 1655 | case 'D': |
| 1656 | move (curs_x - 1, curs_y, 1); |
| 1657 | break; |
| 1658 | case 'F': |
| 1659 | cset_attr[cset=0] = ATTR_LINEDRW; |
| 1660 | break; |
| 1661 | case 'G': |
| 1662 | cset_attr[cset=0] = ATTR_ASCII; |
| 1663 | break; |
| 1664 | case 'H': |
| 1665 | move (0, 0, 0); |
| 1666 | break; |
| 1667 | case 'I': |
| 1668 | if (curs_y == 0) |
| 1669 | scroll (0, rows-1, -1, TRUE); |
| 1670 | else if (curs_y > 0) |
| 1671 | curs_y--; |
| 1672 | fix_cpos; |
| 1673 | wrapnext = FALSE; |
| 1674 | break; |
| 1675 | case 'J': |
| 1676 | erase_lots(FALSE, FALSE, TRUE); |
| 1677 | disptop = scrtop; |
| 1678 | break; |
| 1679 | case 'K': |
| 1680 | erase_lots(TRUE, FALSE, TRUE); |
| 1681 | break; |
| 1682 | case 'V': |
| 1683 | /* XXX Print cursor line */ |
| 1684 | break; |
| 1685 | case 'W': |
| 1686 | /* XXX Start controller mode */ |
| 1687 | break; |
| 1688 | case 'X': |
| 1689 | /* XXX Stop controller mode */ |
| 1690 | break; |
| 1691 | case 'Y': |
| 1692 | termstate = VT52_Y1; |
| 1693 | break; |
| 1694 | case 'Z': |
| 1695 | ldisc->send ("\033/Z", 3); |
| 1696 | break; |
| 1697 | case '=': |
| 1698 | app_keypad_keys = TRUE; |
| 1699 | break; |
| 1700 | case '>': |
| 1701 | app_keypad_keys = FALSE; |
| 1702 | break; |
| 1703 | case '<': |
| 1704 | /* XXX This should switch to VT100 mode not current or default |
| 1705 | * VT mode. But this will only have effect in a VT220+ |
| 1706 | * emulation. |
| 1707 | */ |
| 1708 | vt52_mode = FALSE; |
| 1709 | break; |
| 1710 | case '^': |
| 1711 | /* XXX Enter auto print mode */ |
| 1712 | break; |
| 1713 | case '_': |
| 1714 | /* XXX Exit auto print mode */ |
| 1715 | break; |
| 1716 | case ']': |
| 1717 | /* XXX Print screen */ |
| 1718 | break; |
| 1719 | } |
| 1720 | break; |
| 1721 | case VT52_Y1: |
| 1722 | termstate = VT52_Y2; |
| 1723 | move(curs_x, c-' ', 0); |
| 1724 | break; |
| 1725 | case VT52_Y2: |
| 1726 | termstate = TOPLEVEL; |
| 1727 | move(c-' ', curs_y, 0); |
| 1728 | break; |
| 1729 | } |
| 1730 | if (selstate != NO_SELECTION) |
| 1731 | check_selection (cpos, cpos+1); |
| 1732 | } |
| 1733 | inbuf_head = 0; |
| 1734 | |
| 1735 | if (beep_overload) |
| 1736 | { |
| 1737 | if(!beep_count) beep_overload=0; |
| 1738 | } |
| 1739 | else if(beep_count && beep_count<5 && cfg.beep) |
| 1740 | beep(beep_count/3); |
| 1741 | } |
| 1742 | |
| 1743 | /* |
| 1744 | * Compare two lines to determine whether they are sufficiently |
| 1745 | * alike to scroll-optimise one to the other. Return the degree of |
| 1746 | * similarity. |
| 1747 | */ |
| 1748 | static int linecmp (unsigned long *a, unsigned long *b) { |
| 1749 | int i, n; |
| 1750 | |
| 1751 | for (i=n=0; i < cols; i++) |
| 1752 | n += (*a++ == *b++); |
| 1753 | return n; |
| 1754 | } |
| 1755 | |
| 1756 | /* |
| 1757 | * Given a context, update the window. Out of paranoia, we don't |
| 1758 | * allow WM_PAINT responses to do scrolling optimisations. |
| 1759 | */ |
| 1760 | static void do_paint (Context ctx, int may_optimise){ |
| 1761 | int i, j, start, our_curs_y; |
| 1762 | unsigned long attr, rv, cursor; |
| 1763 | char ch[1024]; |
| 1764 | |
| 1765 | if (cursor_on) { |
| 1766 | if (has_focus) { |
| 1767 | if (blinker || !cfg.blink_cur) |
| 1768 | cursor = ATTR_ACTCURS; |
| 1769 | else |
| 1770 | cursor = 0; |
| 1771 | } |
| 1772 | else |
| 1773 | cursor = ATTR_PASCURS; |
| 1774 | } |
| 1775 | else cursor = 0; |
| 1776 | rv = (rvideo ? ATTR_REVERSE : 0); |
| 1777 | our_curs_y = curs_y + (scrtop - disptop) / (cols+1); |
| 1778 | |
| 1779 | for (i=0; i<rows; i++) { |
| 1780 | int idx = i*(cols+1); |
| 1781 | int lattr = (disptop[idx+cols] & LATTR_MODE); |
| 1782 | for (j=0; j<=cols; j++,idx++) { |
| 1783 | unsigned long *d = disptop+idx; |
| 1784 | wanttext[idx] = lattr | ((*d ^ rv |
| 1785 | ^ (selstart <= d && d < selend ? |
| 1786 | ATTR_REVERSE : 0)) | |
| 1787 | (i==our_curs_y && j==curs_x ? cursor : 0)); |
| 1788 | |
| 1789 | if (blink_is_real) { |
| 1790 | if (has_focus && tblinker && (wanttext[idx]&ATTR_BLINK) ) |
| 1791 | { |
| 1792 | wanttext[idx] &= ATTR_MASK; |
| 1793 | wanttext[idx] += ' '; |
| 1794 | } |
| 1795 | wanttext[idx] &= ~ATTR_BLINK; |
| 1796 | } |
| 1797 | } |
| 1798 | } |
| 1799 | |
| 1800 | /* |
| 1801 | * We would perform scrolling optimisations in here, if they |
| 1802 | * didn't have a nasty tendency to cause the whole sodding |
| 1803 | * program to hang for a second at speed-critical moments. |
| 1804 | * We'll leave it well alone... |
| 1805 | */ |
| 1806 | |
| 1807 | for (i=0; i<rows; i++) { |
| 1808 | int idx = i*(cols+1); |
| 1809 | int lattr = (wanttext[idx+cols] & LATTR_MODE); |
| 1810 | start = -1; |
| 1811 | for (j=0; j<=cols; j++,idx++) { |
| 1812 | unsigned long t = wanttext[idx]; |
| 1813 | int needs_update = (j < cols && t != disptext[idx]); |
| 1814 | int keep_going = (start != -1 && needs_update && |
| 1815 | (t & ATTR_MASK) == attr && |
| 1816 | j-start < sizeof(ch)); |
| 1817 | if (start != -1 && !keep_going) { |
| 1818 | do_text (ctx, start, i, ch, j-start, attr, lattr); |
| 1819 | start = -1; |
| 1820 | } |
| 1821 | if (needs_update) { |
| 1822 | if (start == -1) { |
| 1823 | start = j; |
| 1824 | attr = t & ATTR_MASK; |
| 1825 | } |
| 1826 | ch[j-start] = (char) (t & CHAR_MASK); |
| 1827 | } |
| 1828 | disptext[idx] = t; |
| 1829 | } |
| 1830 | } |
| 1831 | } |
| 1832 | |
| 1833 | /* |
| 1834 | * Flick the switch that says if blinking things should be shown or hidden. |
| 1835 | */ |
| 1836 | |
| 1837 | void term_blink(int flg) { |
| 1838 | static long last_blink = 0; |
| 1839 | static long last_tblink = 0; |
| 1840 | long now, blink_diff; |
| 1841 | |
| 1842 | now = GetTickCount(); |
| 1843 | blink_diff = now-last_tblink; |
| 1844 | |
| 1845 | /* Make sure the text blinks no more than 2Hz */ |
| 1846 | if (blink_diff<0 || blink_diff>450) |
| 1847 | { |
| 1848 | last_tblink = now; |
| 1849 | tblinker = !tblinker; |
| 1850 | } |
| 1851 | |
| 1852 | if (flg) { |
| 1853 | blinker = 1; |
| 1854 | last_blink = now; |
| 1855 | return; |
| 1856 | } |
| 1857 | |
| 1858 | blink_diff = now-last_blink; |
| 1859 | |
| 1860 | /* Make sure the cursor blinks no more than 2Hz */ |
| 1861 | if (blink_diff>=0 && blink_diff<450) |
| 1862 | return; |
| 1863 | |
| 1864 | last_blink = now; |
| 1865 | blinker = !blinker; |
| 1866 | } |
| 1867 | |
| 1868 | /* |
| 1869 | * Invalidate the whole screen so it will be repainted in full. |
| 1870 | */ |
| 1871 | void term_invalidate(void) { |
| 1872 | int i; |
| 1873 | |
| 1874 | for (i=0; i<rows*(cols+1); i++) |
| 1875 | disptext[i] = ATTR_INVALID; |
| 1876 | } |
| 1877 | |
| 1878 | /* |
| 1879 | * Paint the window in response to a WM_PAINT message. |
| 1880 | */ |
| 1881 | void term_paint (Context ctx, int l, int t, int r, int b) { |
| 1882 | int i, j, left, top, right, bottom; |
| 1883 | |
| 1884 | left = l / font_width; |
| 1885 | right = (r - 1) / font_width; |
| 1886 | top = t / font_height; |
| 1887 | bottom = (b - 1) / font_height; |
| 1888 | for (i = top; i <= bottom && i < rows ; i++) |
| 1889 | { |
| 1890 | if ( (disptext[i*(cols+1)+cols]&LATTR_MODE) == LATTR_NORM) |
| 1891 | for (j = left; j <= right && j < cols ; j++) |
| 1892 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
| 1893 | else |
| 1894 | for (j = left/2; j <= right/2+1 && j < cols ; j++) |
| 1895 | disptext[i*(cols+1)+j] = ATTR_INVALID; |
| 1896 | } |
| 1897 | |
| 1898 | /* This should happen soon enough, also for some reason it sometimes |
| 1899 | * fails to actually do anything when re-sizing ... painting the wrong |
| 1900 | * window perhaps ? |
| 1901 | do_paint (ctx, FALSE); |
| 1902 | */ |
| 1903 | } |
| 1904 | |
| 1905 | /* |
| 1906 | * Attempt to scroll the scrollback. The second parameter gives the |
| 1907 | * position we want to scroll to; the first is +1 to denote that |
| 1908 | * this position is relative to the beginning of the scrollback, -1 |
| 1909 | * to denote it is relative to the end, and 0 to denote that it is |
| 1910 | * relative to the current position. |
| 1911 | */ |
| 1912 | void term_scroll (int rel, int where) { |
| 1913 | int n = where * (cols+1); |
| 1914 | |
| 1915 | disptop = (rel < 0 ? scrtop : |
| 1916 | rel > 0 ? sbtop : disptop) + n; |
| 1917 | if (disptop < sbtop) |
| 1918 | disptop = sbtop; |
| 1919 | if (disptop > scrtop) |
| 1920 | disptop = scrtop; |
| 1921 | update_sbar(); |
| 1922 | term_update(); |
| 1923 | } |
| 1924 | |
| 1925 | /* |
| 1926 | * Spread the selection outwards according to the selection mode. |
| 1927 | */ |
| 1928 | static unsigned long *sel_spread_half (unsigned long *p, int dir) { |
| 1929 | unsigned long *linestart, *lineend; |
| 1930 | int x; |
| 1931 | short wvalue; |
| 1932 | |
| 1933 | x = (p - text) % (cols+1); |
| 1934 | linestart = p - x; |
| 1935 | lineend = linestart + cols; |
| 1936 | |
| 1937 | switch (selmode) { |
| 1938 | case SM_CHAR: |
| 1939 | /* |
| 1940 | * In this mode, every character is a separate unit, except |
| 1941 | * for runs of spaces at the end of a non-wrapping line. |
| 1942 | */ |
| 1943 | if (!(linestart[cols] & ATTR_WRAPPED)) { |
| 1944 | unsigned long *q = lineend; |
| 1945 | while (q > linestart && (q[-1] & CHAR_MASK) == 0x20) |
| 1946 | q--; |
| 1947 | if (q == lineend) |
| 1948 | q--; |
| 1949 | if (p >= q) |
| 1950 | p = (dir == -1 ? q : lineend - 1); |
| 1951 | } |
| 1952 | break; |
| 1953 | case SM_WORD: |
| 1954 | /* |
| 1955 | * In this mode, the units are maximal runs of characters |
| 1956 | * whose `wordness' has the same value. |
| 1957 | */ |
| 1958 | wvalue = wordness[*p & CHAR_MASK]; |
| 1959 | if (dir == +1) { |
| 1960 | while (p < lineend && wordness[p[1] & CHAR_MASK] == wvalue) |
| 1961 | p++; |
| 1962 | } else { |
| 1963 | while (p > linestart && wordness[p[-1] & CHAR_MASK] == wvalue) |
| 1964 | p--; |
| 1965 | } |
| 1966 | break; |
| 1967 | case SM_LINE: |
| 1968 | /* |
| 1969 | * In this mode, every line is a unit. |
| 1970 | */ |
| 1971 | p = (dir == -1 ? linestart : lineend - 1); |
| 1972 | break; |
| 1973 | } |
| 1974 | return p; |
| 1975 | } |
| 1976 | |
| 1977 | static void sel_spread (void) { |
| 1978 | selstart = sel_spread_half (selstart, -1); |
| 1979 | selend = sel_spread_half (selend - 1, +1) + 1; |
| 1980 | } |
| 1981 | |
| 1982 | void term_mouse (Mouse_Button b, Mouse_Action a, int x, int y) { |
| 1983 | unsigned long *selpoint; |
| 1984 | |
| 1985 | if (y<0) y = 0; |
| 1986 | if (y>=rows) y = rows-1; |
| 1987 | if (x<0) { |
| 1988 | if (y > 0) { |
| 1989 | x = cols-1; |
| 1990 | y--; |
| 1991 | } else |
| 1992 | x = 0; |
| 1993 | } |
| 1994 | if (x>=cols) x = cols-1; |
| 1995 | |
| 1996 | selpoint = disptop + y * (cols+1); |
| 1997 | if ((selpoint[cols]&LATTR_MODE) != LATTR_NORM) |
| 1998 | selpoint += x/2; |
| 1999 | else |
| 2000 | selpoint += x; |
| 2001 | |
| 2002 | if (b == MB_SELECT && a == MA_CLICK) { |
| 2003 | deselect(); |
| 2004 | selstate = ABOUT_TO; |
| 2005 | selanchor = selpoint; |
| 2006 | selmode = SM_CHAR; |
| 2007 | } else if (b == MB_SELECT && (a == MA_2CLK || a == MA_3CLK)) { |
| 2008 | deselect(); |
| 2009 | selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); |
| 2010 | selstate = DRAGGING; |
| 2011 | selstart = selanchor = selpoint; |
| 2012 | selend = selstart + 1; |
| 2013 | sel_spread(); |
| 2014 | } else if ((b == MB_SELECT && a == MA_DRAG) || |
| 2015 | (b == MB_EXTEND && a != MA_RELEASE)) { |
| 2016 | if (selstate == ABOUT_TO && selanchor == selpoint) |
| 2017 | return; |
| 2018 | if (b == MB_EXTEND && a != MA_DRAG && selstate == SELECTED) { |
| 2019 | if (selpoint-selstart < (selend-selstart)/2) |
| 2020 | selanchor = selend - 1; |
| 2021 | else |
| 2022 | selanchor = selstart; |
| 2023 | selstate = DRAGGING; |
| 2024 | } |
| 2025 | if (selstate != ABOUT_TO && selstate != DRAGGING) |
| 2026 | selanchor = selpoint; |
| 2027 | selstate = DRAGGING; |
| 2028 | if (selpoint < selanchor) { |
| 2029 | selstart = selpoint; |
| 2030 | selend = selanchor + 1; |
| 2031 | } else { |
| 2032 | selstart = selanchor; |
| 2033 | selend = selpoint + 1; |
| 2034 | } |
| 2035 | sel_spread(); |
| 2036 | } else if ((b == MB_SELECT || b == MB_EXTEND) && a == MA_RELEASE) { |
| 2037 | if (selstate == DRAGGING) { |
| 2038 | /* |
| 2039 | * We've completed a selection. We now transfer the |
| 2040 | * data to the clipboard. |
| 2041 | */ |
| 2042 | unsigned char *p = selspace; |
| 2043 | unsigned long *q = selstart; |
| 2044 | |
| 2045 | while (q < selend) { |
| 2046 | int nl = FALSE; |
| 2047 | unsigned long *lineend = q - (q-text) % (cols+1) + cols; |
| 2048 | unsigned long *nlpos = lineend; |
| 2049 | |
| 2050 | if (!(*nlpos & ATTR_WRAPPED)) { |
| 2051 | while ((nlpos[-1] & CHAR_MASK) == 0x20 && nlpos > q) |
| 2052 | nlpos--; |
| 2053 | if (nlpos < selend) |
| 2054 | nl = TRUE; |
| 2055 | } |
| 2056 | while (q < nlpos && q < selend) |
| 2057 | { |
| 2058 | #if 0 |
| 2059 | /* VT Specials -> ISO8859-1 */ |
| 2060 | static const char poorman2[] = |
| 2061 | "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 "; |
| 2062 | #endif |
| 2063 | |
| 2064 | int ch = (*q & CHAR_MASK); |
| 2065 | |
| 2066 | #if 0 |
| 2067 | if ((*q & ATTR_LINEDRW) && ch >= 0x60 && ch < 0x7F) { |
| 2068 | int x; |
| 2069 | *p++ = poorman2[2*(ch-0x60)]; |
| 2070 | if ( (x = poorman2[2*(ch-0x60)+1]) != ' ') |
| 2071 | *p++ = x; |
| 2072 | } else |
| 2073 | #endif |
| 2074 | #if 0 |
| 2075 | if ((*q & ATTR_GBCHR) && ch == '#') |
| 2076 | *p++ = (unsigned char) 0xA3; |
| 2077 | else |
| 2078 | #endif |
| 2079 | *p++ = (unsigned char) ch; |
| 2080 | q++; |
| 2081 | } |
| 2082 | if (nl) { |
| 2083 | int i; |
| 2084 | for (i=0; i<sizeof(sel_nl); i++) |
| 2085 | *p++ = sel_nl[i]; |
| 2086 | } |
| 2087 | q = lineend + 1; /* start of next line */ |
| 2088 | } |
| 2089 | write_clip (selspace, p - selspace, FALSE); |
| 2090 | selstate = SELECTED; |
| 2091 | } else |
| 2092 | selstate = NO_SELECTION; |
| 2093 | } else if (b == MB_PASTE && (a==MA_CLICK || a==MA_2CLK || a==MA_3CLK)) { |
| 2094 | char *data; |
| 2095 | int len; |
| 2096 | |
| 2097 | get_clip((void **) &data, &len); |
| 2098 | if (data) { |
| 2099 | char *p, *q; |
| 2100 | |
| 2101 | if (paste_buffer) sfree(paste_buffer); |
| 2102 | paste_pos = paste_hold = paste_len = 0; |
| 2103 | paste_buffer = smalloc(len); |
| 2104 | |
| 2105 | p = q = data; |
| 2106 | while (p < data+len) { |
| 2107 | while (p < data+len && |
| 2108 | !(p <= data+len-sizeof(sel_nl) && |
| 2109 | !memcmp(p, sel_nl, sizeof(sel_nl)))) |
| 2110 | p++; |
| 2111 | |
| 2112 | { |
| 2113 | int i; |
| 2114 | unsigned char c; |
| 2115 | for(i=0;i<p-q;i++) |
| 2116 | { |
| 2117 | c=xlat_kbd2tty(q[i]); |
| 2118 | paste_buffer[paste_len++] = c; |
| 2119 | } |
| 2120 | } |
| 2121 | |
| 2122 | if (p <= data+len-sizeof(sel_nl) && |
| 2123 | !memcmp(p, sel_nl, sizeof(sel_nl))) { |
| 2124 | paste_buffer[paste_len++] = '\r'; |
| 2125 | p += sizeof(sel_nl); |
| 2126 | } |
| 2127 | q = p; |
| 2128 | } |
| 2129 | |
| 2130 | /* Assume a small paste will be OK in one go. */ |
| 2131 | if (paste_len<256) { |
| 2132 | ldisc->send (paste_buffer, paste_len); |
| 2133 | if (paste_buffer) sfree(paste_buffer); |
| 2134 | paste_buffer = 0; |
| 2135 | paste_pos = paste_hold = paste_len = 0; |
| 2136 | } |
| 2137 | } |
| 2138 | get_clip(NULL, NULL); |
| 2139 | } |
| 2140 | |
| 2141 | term_update(); |
| 2142 | } |
| 2143 | |
| 2144 | void term_nopaste() { |
| 2145 | if(paste_len == 0) return; |
| 2146 | sfree(paste_buffer); |
| 2147 | paste_buffer = 0; |
| 2148 | paste_len = 0; |
| 2149 | } |
| 2150 | |
| 2151 | void term_paste() { |
| 2152 | static long last_paste = 0; |
| 2153 | long now, paste_diff; |
| 2154 | |
| 2155 | if(paste_len == 0) return; |
| 2156 | |
| 2157 | /* Don't wait forever to paste */ |
| 2158 | if(paste_hold) { |
| 2159 | now = GetTickCount(); |
| 2160 | paste_diff = now-last_paste; |
| 2161 | if (paste_diff>=0 && paste_diff<450) |
| 2162 | return; |
| 2163 | } |
| 2164 | paste_hold = 0; |
| 2165 | |
| 2166 | while(paste_pos<paste_len) |
| 2167 | { |
| 2168 | char c = paste_buffer[paste_pos++]; |
| 2169 | ldisc->send (&c, 1); |
| 2170 | |
| 2171 | if (c =='\r') { |
| 2172 | paste_hold = 1; |
| 2173 | return; |
| 2174 | } |
| 2175 | } |
| 2176 | sfree(paste_buffer); |
| 2177 | paste_buffer = 0; |
| 2178 | paste_len = 0; |
| 2179 | } |
| 2180 | |
| 2181 | static void deselect (void) { |
| 2182 | selstate = NO_SELECTION; |
| 2183 | selstart = selend = scrtop; |
| 2184 | } |
| 2185 | |
| 2186 | void term_deselect (void) { |
| 2187 | deselect(); |
| 2188 | term_update(); |
| 2189 | } |