| 1 | #include <windows.h> |
| 2 | |
| 3 | #include <stdio.h> |
| 4 | #include <stdlib.h> |
| 5 | #include <ctype.h> |
| 6 | |
| 7 | #include <time.h> |
| 8 | #include <assert.h> |
| 9 | #include "putty.h" |
| 10 | #include "tree234.h" |
| 11 | |
| 12 | #define VT52_PLUS |
| 13 | |
| 14 | #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */ |
| 15 | #define CL_VT100 0x0002 /* VT100 */ |
| 16 | #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */ |
| 17 | #define CL_VT102 0x0008 /* VT102 */ |
| 18 | #define CL_VT220 0x0010 /* VT220 */ |
| 19 | #define CL_VT320 0x0020 /* VT320 */ |
| 20 | #define CL_VT420 0x0040 /* VT420 */ |
| 21 | #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */ |
| 22 | #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */ |
| 23 | #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */ |
| 24 | #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */ |
| 25 | #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */ |
| 26 | |
| 27 | #define TM_VT100 (CL_ANSIMIN|CL_VT100) |
| 28 | #define TM_VT100AVO (TM_VT100|CL_VT100AVO) |
| 29 | #define TM_VT102 (TM_VT100AVO|CL_VT102) |
| 30 | #define TM_VT220 (TM_VT102|CL_VT220) |
| 31 | #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320) |
| 32 | #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI) |
| 33 | |
| 34 | #define TM_PUTTY (0xFFFF) |
| 35 | |
| 36 | #define compatibility(x) \ |
| 37 | if ( ((CL_##x)&compatibility_level) == 0 ) { \ |
| 38 | termstate=TOPLEVEL; \ |
| 39 | break; \ |
| 40 | } |
| 41 | #define compatibility2(x,y) \ |
| 42 | if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \ |
| 43 | termstate=TOPLEVEL; \ |
| 44 | break; \ |
| 45 | } |
| 46 | |
| 47 | #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 ) |
| 48 | |
| 49 | static int compatibility_level = TM_PUTTY; |
| 50 | |
| 51 | static tree234 *scrollback; /* lines scrolled off top of screen */ |
| 52 | static tree234 *screen; /* lines on primary screen */ |
| 53 | static tree234 *alt_screen; /* lines on alternate screen */ |
| 54 | static int disptop; /* distance scrolled back (0 or -ve) */ |
| 55 | |
| 56 | static unsigned long *cpos; /* cursor position (convenience) */ |
| 57 | |
| 58 | static unsigned long *disptext; /* buffer of text on real screen */ |
| 59 | static unsigned long *dispcurs; /* location of cursor on real screen */ |
| 60 | static unsigned long curstype; /* type of cursor on real screen */ |
| 61 | |
| 62 | #define VBELL_TIMEOUT 100 /* millisecond len of visual bell */ |
| 63 | |
| 64 | struct beeptime { |
| 65 | struct beeptime *next; |
| 66 | unsigned long ticks; |
| 67 | }; |
| 68 | static struct beeptime *beephead, *beeptail; |
| 69 | int nbeeps; |
| 70 | int beep_overloaded; |
| 71 | long lastbeep; |
| 72 | |
| 73 | #define TSIZE (sizeof(unsigned long)) |
| 74 | #define fix_cpos do { cpos = lineptr(curs.y) + curs.x; } while(0) |
| 75 | |
| 76 | static unsigned long curr_attr, save_attr; |
| 77 | static unsigned long erase_char = ERASE_CHAR; |
| 78 | |
| 79 | typedef struct { |
| 80 | int y, x; |
| 81 | } pos; |
| 82 | #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) ) |
| 83 | #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) ) |
| 84 | #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x ) |
| 85 | #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (cols+1) + (p1).x - (p2).x ) |
| 86 | #define incpos(p) ( (p).x == cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) ) |
| 87 | #define decpos(p) ( (p).x == 0 ? ((p).x = cols, (p).y--, 1) : ((p).x--, 0) ) |
| 88 | |
| 89 | /* Product-order comparisons for rectangular block selection. */ |
| 90 | #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x ) |
| 91 | #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x ) |
| 92 | |
| 93 | static bufchain inbuf; /* terminal input buffer */ |
| 94 | static pos curs; /* cursor */ |
| 95 | static pos savecurs; /* saved cursor position */ |
| 96 | static int marg_t, marg_b; /* scroll margins */ |
| 97 | static int dec_om; /* DEC origin mode flag */ |
| 98 | static int wrap, wrapnext; /* wrap flags */ |
| 99 | static int insert; /* insert-mode flag */ |
| 100 | static int cset; /* 0 or 1: which char set */ |
| 101 | static int save_cset, save_csattr; /* saved with cursor position */ |
| 102 | static int save_utf; /* saved with cursor position */ |
| 103 | static int rvideo; /* global reverse video flag */ |
| 104 | static unsigned long rvbell_startpoint;/* for ESC[?5hESC[?5l vbell */ |
| 105 | static int cursor_on; /* cursor enabled flag */ |
| 106 | static int reset_132; /* Flag ESC c resets to 80 cols */ |
| 107 | static int use_bce; /* Use Background coloured erase */ |
| 108 | static int blinker; /* When blinking is the cursor on ? */ |
| 109 | static int tblinker; /* When the blinking text is on */ |
| 110 | static int blink_is_real; /* Actually blink blinking text */ |
| 111 | static int term_echoing; /* Does terminal want local echo? */ |
| 112 | static int term_editing; /* Does terminal want local edit? */ |
| 113 | static int sco_acs, save_sco_acs; /* CSI 10,11,12m -> OEM charset */ |
| 114 | static int vt52_bold; /* Force bold on non-bold colours */ |
| 115 | static int utf_state; /* Is there a pending UTF-8 character */ |
| 116 | static int utf_char; /* and what is it so far. */ |
| 117 | static int utf_size; /* The size of the UTF character. */ |
| 118 | |
| 119 | static int xterm_mouse; /* send mouse messages to app */ |
| 120 | |
| 121 | static unsigned long cset_attr[2]; |
| 122 | |
| 123 | /* |
| 124 | * Saved settings on the alternate screen. |
| 125 | */ |
| 126 | static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset, alt_sco_acs, alt_utf; |
| 127 | static int alt_t, alt_b; |
| 128 | static int alt_which; |
| 129 | |
| 130 | #define ARGS_MAX 32 /* max # of esc sequence arguments */ |
| 131 | #define ARG_DEFAULT 0 /* if an arg isn't specified */ |
| 132 | #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) |
| 133 | static int esc_args[ARGS_MAX]; |
| 134 | static int esc_nargs; |
| 135 | static int esc_query; |
| 136 | #define ANSI(x,y) ((x)+((y)<<8)) |
| 137 | #define ANSI_QUE(x) ANSI(x,TRUE) |
| 138 | |
| 139 | #define OSC_STR_MAX 2048 |
| 140 | static int osc_strlen; |
| 141 | static char osc_string[OSC_STR_MAX + 1]; |
| 142 | static int osc_w; |
| 143 | |
| 144 | static char id_string[1024] = "\033[?6c"; |
| 145 | |
| 146 | static unsigned char *tabs; |
| 147 | |
| 148 | static enum { |
| 149 | TOPLEVEL, |
| 150 | SEEN_ESC, |
| 151 | SEEN_CSI, |
| 152 | SEEN_OSC, |
| 153 | SEEN_OSC_W, |
| 154 | |
| 155 | DO_CTRLS, |
| 156 | |
| 157 | SEEN_OSC_P, |
| 158 | OSC_STRING, OSC_MAYBE_ST, |
| 159 | VT52_ESC, |
| 160 | VT52_Y1, |
| 161 | VT52_Y2, |
| 162 | VT52_FG, |
| 163 | VT52_BG |
| 164 | } termstate; |
| 165 | |
| 166 | static enum { |
| 167 | NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED |
| 168 | } selstate; |
| 169 | static enum { |
| 170 | LEXICOGRAPHIC, RECTANGULAR |
| 171 | } seltype; |
| 172 | static enum { |
| 173 | SM_CHAR, SM_WORD, SM_LINE |
| 174 | } selmode; |
| 175 | static pos selstart, selend, selanchor; |
| 176 | |
| 177 | static short wordness[256] = { |
| 178 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 179 | 0, 0, 0, 0, 0, 0, 0, 0, /* 01 */ |
| 180 | 0, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 181 | 2, 2, 1, 1, 1, 1, 1, 1, /* 23 */ |
| 182 | 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 183 | 2, 2, 2, 1, 1, 1, 1, 2, /* 45 */ |
| 184 | 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 185 | 2, 2, 2, 1, 1, 1, 1, 1, /* 67 */ |
| 186 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 187 | 1, 1, 1, 1, 1, 1, 1, 1, /* 89 */ |
| 188 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 189 | 1, 1, 1, 1, 1, 1, 1, 1, /* AB */ |
| 190 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, |
| 191 | 2, 2, 2, 2, 2, 2, 2, 2, /* CD */ |
| 192 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, |
| 193 | 2, 2, 2, 2, 2, 2, 2, 2, /* EF */ |
| 194 | }; |
| 195 | |
| 196 | #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t)) |
| 197 | static wchar_t sel_nl[] = SEL_NL; |
| 198 | static wchar_t *paste_buffer = 0; |
| 199 | static int paste_len, paste_pos, paste_hold; |
| 200 | |
| 201 | /* |
| 202 | * Internal prototypes. |
| 203 | */ |
| 204 | static void do_paint(Context, int); |
| 205 | static void erase_lots(int, int, int); |
| 206 | static void swap_screen(int); |
| 207 | static void update_sbar(void); |
| 208 | static void deselect(void); |
| 209 | |
| 210 | /* |
| 211 | * Resize a line to make it `cols' columns wide. |
| 212 | */ |
| 213 | unsigned long *resizeline(unsigned long *line, int cols) |
| 214 | { |
| 215 | int i, oldlen; |
| 216 | unsigned long lineattrs; |
| 217 | |
| 218 | if (line[0] != (unsigned long)cols) { |
| 219 | /* |
| 220 | * This line is the wrong length, which probably means it |
| 221 | * hasn't been accessed since a resize. Resize it now. |
| 222 | */ |
| 223 | oldlen = line[0]; |
| 224 | lineattrs = line[oldlen + 1]; |
| 225 | line = srealloc(line, TSIZE * (2 + cols)); |
| 226 | line[0] = cols; |
| 227 | for (i = oldlen; i < cols; i++) |
| 228 | line[i + 1] = ERASE_CHAR; |
| 229 | line[cols + 1] = lineattrs & LATTR_MODE; |
| 230 | } |
| 231 | |
| 232 | return line; |
| 233 | } |
| 234 | |
| 235 | /* |
| 236 | * Retrieve a line of the screen or of the scrollback, according to |
| 237 | * whether the y coordinate is non-negative or negative |
| 238 | * (respectively). |
| 239 | */ |
| 240 | unsigned long *lineptr(int y, int lineno) |
| 241 | { |
| 242 | unsigned long *line, *newline; |
| 243 | tree234 *whichtree; |
| 244 | int treeindex; |
| 245 | |
| 246 | if (y >= 0) { |
| 247 | whichtree = screen; |
| 248 | treeindex = y; |
| 249 | } else { |
| 250 | whichtree = scrollback; |
| 251 | treeindex = y + count234(scrollback); |
| 252 | } |
| 253 | line = index234(whichtree, treeindex); |
| 254 | |
| 255 | /* We assume that we don't screw up and retrieve something out of range. */ |
| 256 | assert(line != NULL); |
| 257 | |
| 258 | newline = resizeline(line, cols); |
| 259 | if (newline != line) { |
| 260 | delpos234(whichtree, treeindex); |
| 261 | addpos234(whichtree, newline, treeindex); |
| 262 | line = newline; |
| 263 | } |
| 264 | |
| 265 | return line + 1; |
| 266 | } |
| 267 | |
| 268 | #define lineptr(x) lineptr(x,__LINE__) |
| 269 | /* |
| 270 | * Set up power-on settings for the terminal. |
| 271 | */ |
| 272 | static void power_on(void) |
| 273 | { |
| 274 | curs.x = curs.y = alt_x = alt_y = savecurs.x = savecurs.y = 0; |
| 275 | alt_t = marg_t = 0; |
| 276 | if (rows != -1) |
| 277 | alt_b = marg_b = rows - 1; |
| 278 | else |
| 279 | alt_b = marg_b = 0; |
| 280 | if (cols != -1) { |
| 281 | int i; |
| 282 | for (i = 0; i < cols; i++) |
| 283 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
| 284 | } |
| 285 | alt_om = dec_om = cfg.dec_om; |
| 286 | alt_wnext = wrapnext = alt_ins = insert = FALSE; |
| 287 | alt_wrap = wrap = cfg.wrap_mode; |
| 288 | alt_cset = cset = 0; |
| 289 | alt_utf = utf = 0; |
| 290 | alt_sco_acs = sco_acs = 0; |
| 291 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
| 292 | rvideo = 0; |
| 293 | in_vbell = FALSE; |
| 294 | cursor_on = 1; |
| 295 | big_cursor = 0; |
| 296 | save_attr = curr_attr = ATTR_DEFAULT; |
| 297 | term_editing = term_echoing = FALSE; |
| 298 | ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */ |
| 299 | app_cursor_keys = cfg.app_cursor; |
| 300 | app_keypad_keys = cfg.app_keypad; |
| 301 | use_bce = cfg.bce; |
| 302 | blink_is_real = cfg.blinktext; |
| 303 | erase_char = ERASE_CHAR; |
| 304 | alt_which = 0; |
| 305 | { |
| 306 | int i; |
| 307 | for (i = 0; i < 256; i++) |
| 308 | wordness[i] = cfg.wordness[i]; |
| 309 | } |
| 310 | if (screen) { |
| 311 | swap_screen(1); |
| 312 | erase_lots(FALSE, TRUE, TRUE); |
| 313 | swap_screen(0); |
| 314 | erase_lots(FALSE, TRUE, TRUE); |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | /* |
| 319 | * Force a screen update. |
| 320 | */ |
| 321 | void term_update(void) |
| 322 | { |
| 323 | Context ctx; |
| 324 | ctx = get_ctx(); |
| 325 | if (ctx) { |
| 326 | int need_sbar_update = seen_disp_event; |
| 327 | if ((seen_key_event && (cfg.scroll_on_key)) || |
| 328 | (seen_disp_event && (cfg.scroll_on_disp))) { |
| 329 | disptop = 0; /* return to main screen */ |
| 330 | seen_disp_event = seen_key_event = 0; |
| 331 | need_sbar_update = TRUE; |
| 332 | } |
| 333 | if (need_sbar_update) |
| 334 | update_sbar(); |
| 335 | do_paint(ctx, TRUE); |
| 336 | sys_cursor(curs.x, curs.y - disptop); |
| 337 | free_ctx(ctx); |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | /* |
| 342 | * Same as power_on(), but an external function. |
| 343 | */ |
| 344 | void term_pwron(void) |
| 345 | { |
| 346 | power_on(); |
| 347 | fix_cpos; |
| 348 | disptop = 0; |
| 349 | deselect(); |
| 350 | term_update(); |
| 351 | } |
| 352 | |
| 353 | /* |
| 354 | * Clear the scrollback. |
| 355 | */ |
| 356 | void term_clrsb(void) |
| 357 | { |
| 358 | unsigned long *line; |
| 359 | disptop = 0; |
| 360 | while ((line = delpos234(scrollback, 0)) != NULL) { |
| 361 | sfree(line); |
| 362 | } |
| 363 | update_sbar(); |
| 364 | } |
| 365 | |
| 366 | /* |
| 367 | * Initialise the terminal. |
| 368 | */ |
| 369 | void term_init(void) |
| 370 | { |
| 371 | screen = alt_screen = scrollback = NULL; |
| 372 | disptop = 0; |
| 373 | disptext = dispcurs = NULL; |
| 374 | tabs = NULL; |
| 375 | deselect(); |
| 376 | rows = cols = -1; |
| 377 | power_on(); |
| 378 | beephead = beeptail = NULL; |
| 379 | nbeeps = 0; |
| 380 | lastbeep = FALSE; |
| 381 | beep_overloaded = FALSE; |
| 382 | } |
| 383 | |
| 384 | /* |
| 385 | * Set up the terminal for a given size. |
| 386 | */ |
| 387 | void term_size(int newrows, int newcols, int newsavelines) |
| 388 | { |
| 389 | tree234 *newalt; |
| 390 | unsigned long *newdisp, *line; |
| 391 | int i, j; |
| 392 | int sblen; |
| 393 | int save_alt_which = alt_which; |
| 394 | |
| 395 | if (newrows == rows && newcols == cols && newsavelines == savelines) |
| 396 | return; /* nothing to do */ |
| 397 | |
| 398 | deselect(); |
| 399 | swap_screen(0); |
| 400 | |
| 401 | alt_t = marg_t = 0; |
| 402 | alt_b = marg_b = newrows - 1; |
| 403 | |
| 404 | if (rows == -1) { |
| 405 | scrollback = newtree234(NULL); |
| 406 | screen = newtree234(NULL); |
| 407 | rows = 0; |
| 408 | } |
| 409 | |
| 410 | /* |
| 411 | * Resize the screen and scrollback. We only need to shift |
| 412 | * lines around within our data structures, because lineptr() |
| 413 | * will take care of resizing each individual line if |
| 414 | * necessary. So: |
| 415 | * |
| 416 | * - If the new screen and the old screen differ in length, we |
| 417 | * must shunt some lines in from the scrollback or out to |
| 418 | * the scrollback. |
| 419 | * |
| 420 | * - If doing that fails to provide us with enough material to |
| 421 | * fill the new screen (i.e. the number of rows needed in |
| 422 | * the new screen exceeds the total number in the previous |
| 423 | * screen+scrollback), we must invent some blank lines to |
| 424 | * cover the gap. |
| 425 | * |
| 426 | * - Then, if the new scrollback length is less than the |
| 427 | * amount of scrollback we actually have, we must throw some |
| 428 | * away. |
| 429 | */ |
| 430 | sblen = count234(scrollback); |
| 431 | /* Do this loop to expand the screen if newrows > rows */ |
| 432 | for (i = rows; i < newrows; i++) { |
| 433 | if (sblen > 0) { |
| 434 | line = delpos234(scrollback, --sblen); |
| 435 | } else { |
| 436 | line = smalloc(TSIZE * (newcols + 2)); |
| 437 | line[0] = newcols; |
| 438 | for (j = 0; j <= newcols; j++) |
| 439 | line[j + 1] = ERASE_CHAR; |
| 440 | } |
| 441 | addpos234(screen, line, 0); |
| 442 | } |
| 443 | /* Do this loop to shrink the screen if newrows < rows */ |
| 444 | for (i = newrows; i < rows; i++) { |
| 445 | line = delpos234(screen, 0); |
| 446 | addpos234(scrollback, line, sblen++); |
| 447 | } |
| 448 | assert(count234(screen) == newrows); |
| 449 | while (sblen > newsavelines) { |
| 450 | line = delpos234(scrollback, 0); |
| 451 | sfree(line); |
| 452 | sblen--; |
| 453 | } |
| 454 | assert(count234(scrollback) <= newsavelines); |
| 455 | disptop = 0; |
| 456 | |
| 457 | newdisp = smalloc(newrows * (newcols + 1) * TSIZE); |
| 458 | for (i = 0; i < newrows * (newcols + 1); i++) |
| 459 | newdisp[i] = ATTR_INVALID; |
| 460 | sfree(disptext); |
| 461 | disptext = newdisp; |
| 462 | dispcurs = NULL; |
| 463 | |
| 464 | newalt = newtree234(NULL); |
| 465 | for (i = 0; i < newrows; i++) { |
| 466 | line = smalloc(TSIZE * (newcols + 2)); |
| 467 | line[0] = newcols; |
| 468 | for (j = 0; j <= newcols; j++) |
| 469 | line[j + 1] = erase_char; |
| 470 | addpos234(newalt, line, i); |
| 471 | } |
| 472 | if (alt_screen) { |
| 473 | while (NULL != (line = delpos234(alt_screen, 0))) |
| 474 | sfree(line); |
| 475 | freetree234(alt_screen); |
| 476 | } |
| 477 | alt_screen = newalt; |
| 478 | |
| 479 | tabs = srealloc(tabs, newcols * sizeof(*tabs)); |
| 480 | { |
| 481 | int i; |
| 482 | for (i = (cols > 0 ? cols : 0); i < newcols; i++) |
| 483 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
| 484 | } |
| 485 | |
| 486 | if (rows > 0) |
| 487 | curs.y += newrows - rows; |
| 488 | if (curs.y < 0) |
| 489 | curs.y = 0; |
| 490 | if (curs.y >= newrows) |
| 491 | curs.y = newrows - 1; |
| 492 | if (curs.x >= newcols) |
| 493 | curs.x = newcols - 1; |
| 494 | alt_x = alt_y = 0; |
| 495 | wrapnext = alt_wnext = FALSE; |
| 496 | |
| 497 | rows = newrows; |
| 498 | cols = newcols; |
| 499 | savelines = newsavelines; |
| 500 | fix_cpos; |
| 501 | |
| 502 | swap_screen(save_alt_which); |
| 503 | |
| 504 | update_sbar(); |
| 505 | term_update(); |
| 506 | back->size(); |
| 507 | } |
| 508 | |
| 509 | /* |
| 510 | * Swap screens. |
| 511 | */ |
| 512 | static void swap_screen(int which) |
| 513 | { |
| 514 | int t; |
| 515 | tree234 *ttr; |
| 516 | |
| 517 | if (which == alt_which) |
| 518 | return; |
| 519 | |
| 520 | alt_which = which; |
| 521 | |
| 522 | ttr = alt_screen; |
| 523 | alt_screen = screen; |
| 524 | screen = ttr; |
| 525 | t = curs.x; |
| 526 | curs.x = alt_x; |
| 527 | alt_x = t; |
| 528 | t = curs.y; |
| 529 | curs.y = alt_y; |
| 530 | alt_y = t; |
| 531 | t = marg_t; |
| 532 | marg_t = alt_t; |
| 533 | alt_t = t; |
| 534 | t = marg_b; |
| 535 | marg_b = alt_b; |
| 536 | alt_b = t; |
| 537 | t = dec_om; |
| 538 | dec_om = alt_om; |
| 539 | alt_om = t; |
| 540 | t = wrap; |
| 541 | wrap = alt_wrap; |
| 542 | alt_wrap = t; |
| 543 | t = wrapnext; |
| 544 | wrapnext = alt_wnext; |
| 545 | alt_wnext = t; |
| 546 | t = insert; |
| 547 | insert = alt_ins; |
| 548 | alt_ins = t; |
| 549 | t = cset; |
| 550 | cset = alt_cset; |
| 551 | alt_cset = t; |
| 552 | t = utf; |
| 553 | utf = alt_utf; |
| 554 | alt_utf = t; |
| 555 | t = sco_acs; |
| 556 | sco_acs = alt_sco_acs; |
| 557 | alt_sco_acs = t; |
| 558 | |
| 559 | fix_cpos; |
| 560 | } |
| 561 | |
| 562 | /* |
| 563 | * Update the scroll bar. |
| 564 | */ |
| 565 | static void update_sbar(void) |
| 566 | { |
| 567 | int nscroll; |
| 568 | |
| 569 | nscroll = count234(scrollback); |
| 570 | |
| 571 | set_sbar(nscroll + rows, nscroll + disptop, rows); |
| 572 | } |
| 573 | |
| 574 | /* |
| 575 | * Check whether the region bounded by the two pointers intersects |
| 576 | * the scroll region, and de-select the on-screen selection if so. |
| 577 | */ |
| 578 | static void check_selection(pos from, pos to) |
| 579 | { |
| 580 | if (poslt(from, selend) && poslt(selstart, to)) |
| 581 | deselect(); |
| 582 | } |
| 583 | |
| 584 | /* |
| 585 | * Scroll the screen. (`lines' is +ve for scrolling forward, -ve |
| 586 | * for backward.) `sb' is TRUE if the scrolling is permitted to |
| 587 | * affect the scrollback buffer. |
| 588 | * |
| 589 | * NB this function invalidates all pointers into lines of the |
| 590 | * screen data structures. In particular, you MUST call fix_cpos |
| 591 | * after calling scroll() and before doing anything else that |
| 592 | * uses the cpos shortcut pointer. |
| 593 | */ |
| 594 | static void scroll(int topline, int botline, int lines, int sb) |
| 595 | { |
| 596 | unsigned long *line, *line2; |
| 597 | int i, seltop; |
| 598 | |
| 599 | if (topline != 0 || alt_which != 0) |
| 600 | sb = FALSE; |
| 601 | |
| 602 | if (lines < 0) { |
| 603 | while (lines < 0) { |
| 604 | line = delpos234(screen, botline); |
| 605 | line = resizeline(line, cols); |
| 606 | for (i = 0; i < cols; i++) |
| 607 | line[i + 1] = erase_char; |
| 608 | line[cols + 1] = 0; |
| 609 | addpos234(screen, line, topline); |
| 610 | |
| 611 | if (selstart.y >= topline && selstart.y <= botline) { |
| 612 | selstart.y++; |
| 613 | if (selstart.y > botline) { |
| 614 | selstart.y = botline; |
| 615 | selstart.x = 0; |
| 616 | } |
| 617 | } |
| 618 | if (selend.y >= topline && selend.y <= botline) { |
| 619 | selend.y++; |
| 620 | if (selend.y > botline) { |
| 621 | selend.y = botline; |
| 622 | selend.x = 0; |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | lines++; |
| 627 | } |
| 628 | } else { |
| 629 | while (lines > 0) { |
| 630 | line = delpos234(screen, topline); |
| 631 | if (sb && savelines > 0) { |
| 632 | int sblen = count234(scrollback); |
| 633 | /* |
| 634 | * We must add this line to the scrollback. We'll |
| 635 | * remove a line from the top of the scrollback to |
| 636 | * replace it, or allocate a new one if the |
| 637 | * scrollback isn't full. |
| 638 | */ |
| 639 | if (sblen == savelines) { |
| 640 | sblen--, line2 = delpos234(scrollback, 0); |
| 641 | } else { |
| 642 | line2 = smalloc(TSIZE * (cols + 2)); |
| 643 | line2[0] = cols; |
| 644 | } |
| 645 | addpos234(scrollback, line, sblen); |
| 646 | line = line2; |
| 647 | |
| 648 | /* |
| 649 | * If the user is currently looking at part of the |
| 650 | * scrollback, and they haven't enabled any options |
| 651 | * that are going to reset the scrollback as a |
| 652 | * result of this movement, then the chances are |
| 653 | * they'd like to keep looking at the same line. So |
| 654 | * we move their viewpoint at the same rate as the |
| 655 | * scroll, at least until their viewpoint hits the |
| 656 | * top end of the scrollback buffer, at which point |
| 657 | * we don't have the choice any more. |
| 658 | * |
| 659 | * Thanks to Jan Holmen Holsten for the idea and |
| 660 | * initial implementation. |
| 661 | */ |
| 662 | if (disptop > -savelines && disptop < 0) |
| 663 | disptop--; |
| 664 | } |
| 665 | line = resizeline(line, cols); |
| 666 | for (i = 0; i < cols; i++) |
| 667 | line[i + 1] = erase_char; |
| 668 | line[cols + 1] = 0; |
| 669 | addpos234(screen, line, botline); |
| 670 | |
| 671 | /* |
| 672 | * If the selection endpoints move into the scrollback, |
| 673 | * we keep them moving until they hit the top. However, |
| 674 | * of course, if the line _hasn't_ moved into the |
| 675 | * scrollback then we don't do this, and cut them off |
| 676 | * at the top of the scroll region. |
| 677 | * |
| 678 | * This applies to selstart and selend (for an existing |
| 679 | * selection), and also selanchor (for one being |
| 680 | * selected as we speak). |
| 681 | */ |
| 682 | seltop = sb ? -savelines : topline; |
| 683 | |
| 684 | if (selstart.y >= seltop && selstart.y <= botline) { |
| 685 | selstart.y--; |
| 686 | if (selstart.y < seltop) { |
| 687 | selstart.y = seltop; |
| 688 | selstart.x = 0; |
| 689 | } |
| 690 | } |
| 691 | if (selend.y >= seltop && selend.y <= botline) { |
| 692 | selend.y--; |
| 693 | if (selend.y < seltop) { |
| 694 | selend.y = seltop; |
| 695 | selend.x = 0; |
| 696 | } |
| 697 | } |
| 698 | if (selanchor.y >= seltop && selanchor.y <= botline) { |
| 699 | selanchor.y--; |
| 700 | if (selanchor.y < seltop) { |
| 701 | selanchor.y = seltop; |
| 702 | selanchor.x = 0; |
| 703 | } |
| 704 | } |
| 705 | |
| 706 | lines--; |
| 707 | } |
| 708 | } |
| 709 | } |
| 710 | |
| 711 | /* |
| 712 | * Move the cursor to a given position, clipping at boundaries. We |
| 713 | * may or may not want to clip at the scroll margin: marg_clip is 0 |
| 714 | * not to, 1 to disallow _passing_ the margins, and 2 to disallow |
| 715 | * even _being_ outside the margins. |
| 716 | */ |
| 717 | static void move(int x, int y, int marg_clip) |
| 718 | { |
| 719 | if (x < 0) |
| 720 | x = 0; |
| 721 | if (x >= cols) |
| 722 | x = cols - 1; |
| 723 | if (marg_clip) { |
| 724 | if ((curs.y >= marg_t || marg_clip == 2) && y < marg_t) |
| 725 | y = marg_t; |
| 726 | if ((curs.y <= marg_b || marg_clip == 2) && y > marg_b) |
| 727 | y = marg_b; |
| 728 | } |
| 729 | if (y < 0) |
| 730 | y = 0; |
| 731 | if (y >= rows) |
| 732 | y = rows - 1; |
| 733 | curs.x = x; |
| 734 | curs.y = y; |
| 735 | fix_cpos; |
| 736 | wrapnext = FALSE; |
| 737 | } |
| 738 | |
| 739 | /* |
| 740 | * Save or restore the cursor and SGR mode. |
| 741 | */ |
| 742 | static void save_cursor(int save) |
| 743 | { |
| 744 | if (save) { |
| 745 | savecurs = curs; |
| 746 | save_attr = curr_attr; |
| 747 | save_cset = cset; |
| 748 | save_utf = utf; |
| 749 | save_csattr = cset_attr[cset]; |
| 750 | save_sco_acs = sco_acs; |
| 751 | } else { |
| 752 | curs = savecurs; |
| 753 | /* Make sure the window hasn't shrunk since the save */ |
| 754 | if (curs.x >= cols) |
| 755 | curs.x = cols - 1; |
| 756 | if (curs.y >= rows) |
| 757 | curs.y = rows - 1; |
| 758 | |
| 759 | curr_attr = save_attr; |
| 760 | cset = save_cset; |
| 761 | utf = save_utf; |
| 762 | cset_attr[cset] = save_csattr; |
| 763 | sco_acs = save_sco_acs; |
| 764 | fix_cpos; |
| 765 | if (use_bce) |
| 766 | erase_char = (' ' | ATTR_ASCII | |
| 767 | (curr_attr & (ATTR_FGMASK | ATTR_BGMASK))); |
| 768 | } |
| 769 | } |
| 770 | |
| 771 | /* |
| 772 | * Erase a large portion of the screen: the whole screen, or the |
| 773 | * whole line, or parts thereof. |
| 774 | */ |
| 775 | static void erase_lots(int line_only, int from_begin, int to_end) |
| 776 | { |
| 777 | pos start, end; |
| 778 | int erase_lattr; |
| 779 | unsigned long *ldata; |
| 780 | |
| 781 | if (line_only) { |
| 782 | start.y = curs.y; |
| 783 | start.x = 0; |
| 784 | end.y = curs.y + 1; |
| 785 | end.x = 0; |
| 786 | erase_lattr = FALSE; |
| 787 | } else { |
| 788 | start.y = 0; |
| 789 | start.x = 0; |
| 790 | end.y = rows; |
| 791 | end.x = 0; |
| 792 | erase_lattr = TRUE; |
| 793 | } |
| 794 | if (!from_begin) { |
| 795 | start = curs; |
| 796 | } |
| 797 | if (!to_end) { |
| 798 | end = curs; |
| 799 | incpos(end); |
| 800 | } |
| 801 | check_selection(start, end); |
| 802 | |
| 803 | /* Clear screen also forces a full window redraw, just in case. */ |
| 804 | if (start.y == 0 && start.x == 0 && end.y == rows) |
| 805 | term_invalidate(); |
| 806 | |
| 807 | ldata = lineptr(start.y); |
| 808 | while (poslt(start, end)) { |
| 809 | if (start.x == cols && !erase_lattr) |
| 810 | ldata[start.x] &= ~LATTR_WRAPPED; |
| 811 | else |
| 812 | ldata[start.x] = erase_char; |
| 813 | if (incpos(start) && start.y < rows) |
| 814 | ldata = lineptr(start.y); |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | /* |
| 819 | * Insert or delete characters within the current line. n is +ve if |
| 820 | * insertion is desired, and -ve for deletion. |
| 821 | */ |
| 822 | static void insch(int n) |
| 823 | { |
| 824 | int dir = (n < 0 ? -1 : +1); |
| 825 | int m; |
| 826 | pos cursplus; |
| 827 | unsigned long *ldata; |
| 828 | |
| 829 | n = (n < 0 ? -n : n); |
| 830 | if (n > cols - curs.x) |
| 831 | n = cols - curs.x; |
| 832 | m = cols - curs.x - n; |
| 833 | cursplus.y = curs.y; |
| 834 | cursplus.x = curs.x + n; |
| 835 | check_selection(curs, cursplus); |
| 836 | ldata = lineptr(curs.y); |
| 837 | if (dir < 0) { |
| 838 | memmove(ldata + curs.x, ldata + curs.x + n, m * TSIZE); |
| 839 | while (n--) |
| 840 | ldata[curs.x + m++] = erase_char; |
| 841 | } else { |
| 842 | memmove(ldata + curs.x + n, ldata + curs.x, m * TSIZE); |
| 843 | while (n--) |
| 844 | ldata[curs.x + n] = erase_char; |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | /* |
| 849 | * Toggle terminal mode `mode' to state `state'. (`query' indicates |
| 850 | * whether the mode is a DEC private one or a normal one.) |
| 851 | */ |
| 852 | static void toggle_mode(int mode, int query, int state) |
| 853 | { |
| 854 | unsigned long ticks; |
| 855 | |
| 856 | if (query) |
| 857 | switch (mode) { |
| 858 | case 1: /* application cursor keys */ |
| 859 | app_cursor_keys = state; |
| 860 | break; |
| 861 | case 2: /* VT52 mode */ |
| 862 | vt52_mode = !state; |
| 863 | if (vt52_mode) { |
| 864 | blink_is_real = FALSE; |
| 865 | vt52_bold = FALSE; |
| 866 | } else { |
| 867 | blink_is_real = cfg.blinktext; |
| 868 | } |
| 869 | break; |
| 870 | case 3: /* 80/132 columns */ |
| 871 | deselect(); |
| 872 | request_resize(state ? 132 : 80, rows); |
| 873 | reset_132 = state; |
| 874 | break; |
| 875 | case 5: /* reverse video */ |
| 876 | /* |
| 877 | * Toggle reverse video. If we receive an OFF within the |
| 878 | * visual bell timeout period after an ON, we trigger an |
| 879 | * effective visual bell, so that ESC[?5hESC[?5l will |
| 880 | * always be an actually _visible_ visual bell. |
| 881 | */ |
| 882 | ticks = GetTickCount(); |
| 883 | /* turn off a previous vbell to avoid inconsistencies */ |
| 884 | if (ticks - vbell_startpoint >= VBELL_TIMEOUT) |
| 885 | in_vbell = FALSE; |
| 886 | if (rvideo && !state && /* we're turning it off... */ |
| 887 | (ticks - rvbell_startpoint) < VBELL_TIMEOUT) { /* ...soon */ |
| 888 | /* If there's no vbell timeout already, or this one lasts |
| 889 | * longer, replace vbell_timeout with ours. */ |
| 890 | if (!in_vbell || |
| 891 | (rvbell_startpoint - vbell_startpoint < VBELL_TIMEOUT)) |
| 892 | vbell_startpoint = rvbell_startpoint; |
| 893 | in_vbell = TRUE; /* we may clear rvideo but we set in_vbell */ |
| 894 | } else if (!rvideo && state) { |
| 895 | /* This is an ON, so we notice the time and save it. */ |
| 896 | rvbell_startpoint = ticks; |
| 897 | } |
| 898 | rvideo = state; |
| 899 | seen_disp_event = TRUE; |
| 900 | if (state) |
| 901 | term_update(); |
| 902 | break; |
| 903 | case 6: /* DEC origin mode */ |
| 904 | dec_om = state; |
| 905 | break; |
| 906 | case 7: /* auto wrap */ |
| 907 | wrap = state; |
| 908 | break; |
| 909 | case 8: /* auto key repeat */ |
| 910 | repeat_off = !state; |
| 911 | break; |
| 912 | case 10: /* set local edit mode */ |
| 913 | term_editing = state; |
| 914 | ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */ |
| 915 | break; |
| 916 | case 25: /* enable/disable cursor */ |
| 917 | compatibility2(OTHER, VT220); |
| 918 | cursor_on = state; |
| 919 | seen_disp_event = TRUE; |
| 920 | break; |
| 921 | case 47: /* alternate screen */ |
| 922 | compatibility(OTHER); |
| 923 | deselect(); |
| 924 | swap_screen(state); |
| 925 | disptop = 0; |
| 926 | break; |
| 927 | case 1000: /* xterm mouse 1 */ |
| 928 | xterm_mouse = state ? 1 : 0; |
| 929 | set_raw_mouse_mode(state); |
| 930 | break; |
| 931 | case 1002: /* xterm mouse 2 */ |
| 932 | xterm_mouse = state ? 2 : 0; |
| 933 | set_raw_mouse_mode(state); |
| 934 | break; |
| 935 | } else |
| 936 | switch (mode) { |
| 937 | case 4: /* set insert mode */ |
| 938 | compatibility(VT102); |
| 939 | insert = state; |
| 940 | break; |
| 941 | case 12: /* set echo mode */ |
| 942 | term_echoing = !state; |
| 943 | ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */ |
| 944 | break; |
| 945 | case 20: /* Return sends ... */ |
| 946 | cr_lf_return = state; |
| 947 | break; |
| 948 | case 34: /* Make cursor BIG */ |
| 949 | compatibility2(OTHER, VT220); |
| 950 | big_cursor = !state; |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | /* |
| 955 | * Process an OSC sequence: set window title or icon name. |
| 956 | */ |
| 957 | static void do_osc(void) |
| 958 | { |
| 959 | if (osc_w) { |
| 960 | while (osc_strlen--) |
| 961 | wordness[(unsigned char) osc_string[osc_strlen]] = esc_args[0]; |
| 962 | } else { |
| 963 | osc_string[osc_strlen] = '\0'; |
| 964 | switch (esc_args[0]) { |
| 965 | case 0: |
| 966 | case 1: |
| 967 | set_icon(osc_string); |
| 968 | if (esc_args[0] == 1) |
| 969 | break; |
| 970 | /* fall through: parameter 0 means set both */ |
| 971 | case 2: |
| 972 | case 21: |
| 973 | set_title(osc_string); |
| 974 | break; |
| 975 | } |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | /* |
| 980 | * Remove everything currently in `inbuf' and stick it up on the |
| 981 | * in-memory display. There's a big state machine in here to |
| 982 | * process escape sequences... |
| 983 | */ |
| 984 | void term_out(void) |
| 985 | { |
| 986 | int c, unget; |
| 987 | unsigned char localbuf[256], *chars; |
| 988 | int nchars = 0; |
| 989 | |
| 990 | unget = -1; |
| 991 | |
| 992 | while (nchars > 0 || bufchain_size(&inbuf) > 0) { |
| 993 | if (unget == -1) { |
| 994 | if (nchars == 0) { |
| 995 | void *ret; |
| 996 | bufchain_prefix(&inbuf, &ret, &nchars); |
| 997 | if (nchars > sizeof(localbuf)) |
| 998 | nchars = sizeof(localbuf); |
| 999 | memcpy(localbuf, ret, nchars); |
| 1000 | bufchain_consume(&inbuf, nchars); |
| 1001 | chars = localbuf; |
| 1002 | assert(chars != NULL); |
| 1003 | } |
| 1004 | c = *chars++; |
| 1005 | nchars--; |
| 1006 | |
| 1007 | /* |
| 1008 | * Optionally log the session traffic to a file. Useful for |
| 1009 | * debugging and possibly also useful for actual logging. |
| 1010 | */ |
| 1011 | if (cfg.logtype == LGTYP_DEBUG) |
| 1012 | logtraffic((unsigned char) c, LGTYP_DEBUG); |
| 1013 | } else { |
| 1014 | c = unget; |
| 1015 | unget = -1; |
| 1016 | } |
| 1017 | |
| 1018 | /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even |
| 1019 | * be able to display 8-bit characters, but I'll let that go 'cause |
| 1020 | * of i18n. |
| 1021 | */ |
| 1022 | |
| 1023 | /* First see about all those translations. */ |
| 1024 | if (termstate == TOPLEVEL) { |
| 1025 | if (in_utf) |
| 1026 | switch (utf_state) { |
| 1027 | case 0: |
| 1028 | if (c < 0x80) { |
| 1029 | /* UTF-8 must be stateless so we ignore iso2022. */ |
| 1030 | if (unitab_ctrl[c] != 0xFF) |
| 1031 | c = unitab_ctrl[c]; |
| 1032 | else c = ((unsigned char)c) | ATTR_ASCII; |
| 1033 | break; |
| 1034 | } else if ((c & 0xe0) == 0xc0) { |
| 1035 | utf_size = utf_state = 1; |
| 1036 | utf_char = (c & 0x1f); |
| 1037 | } else if ((c & 0xf0) == 0xe0) { |
| 1038 | utf_size = utf_state = 2; |
| 1039 | utf_char = (c & 0x0f); |
| 1040 | } else if ((c & 0xf8) == 0xf0) { |
| 1041 | utf_size = utf_state = 3; |
| 1042 | utf_char = (c & 0x07); |
| 1043 | } else if ((c & 0xfc) == 0xf8) { |
| 1044 | utf_size = utf_state = 4; |
| 1045 | utf_char = (c & 0x03); |
| 1046 | } else if ((c & 0xfe) == 0xfc) { |
| 1047 | utf_size = utf_state = 5; |
| 1048 | utf_char = (c & 0x01); |
| 1049 | } else { |
| 1050 | c = UCSERR; |
| 1051 | break; |
| 1052 | } |
| 1053 | continue; |
| 1054 | case 1: |
| 1055 | case 2: |
| 1056 | case 3: |
| 1057 | case 4: |
| 1058 | case 5: |
| 1059 | if ((c & 0xC0) != 0x80) { |
| 1060 | unget = c; |
| 1061 | c = UCSERR; |
| 1062 | utf_state = 0; |
| 1063 | break; |
| 1064 | } |
| 1065 | utf_char = (utf_char << 6) | (c & 0x3f); |
| 1066 | if (--utf_state) |
| 1067 | continue; |
| 1068 | |
| 1069 | c = utf_char; |
| 1070 | |
| 1071 | /* Is somebody trying to be evil! */ |
| 1072 | if (c < 0x80 || |
| 1073 | (c < 0x800 && utf_size >= 2) || |
| 1074 | (c < 0x10000 && utf_size >= 3) || |
| 1075 | (c < 0x200000 && utf_size >= 4) || |
| 1076 | (c < 0x4000000 && utf_size >= 5)) |
| 1077 | c = UCSERR; |
| 1078 | |
| 1079 | /* Unicode line separator and paragraph separator are CR-LF */ |
| 1080 | if (c == 0x2028 || c == 0x2029) |
| 1081 | c = 0x85; |
| 1082 | |
| 1083 | /* High controls are probably a Baaad idea too. */ |
| 1084 | if (c < 0xA0) |
| 1085 | c = 0xFFFD; |
| 1086 | |
| 1087 | /* The UTF-16 surrogates are not nice either. */ |
| 1088 | /* The standard give the option of decoding these: |
| 1089 | * I don't want to! */ |
| 1090 | if (c >= 0xD800 && c < 0xE000) |
| 1091 | c = UCSERR; |
| 1092 | |
| 1093 | /* ISO 10646 characters now limited to UTF-16 range. */ |
| 1094 | if (c > 0x10FFFF) |
| 1095 | c = UCSERR; |
| 1096 | |
| 1097 | /* This is currently a TagPhobic application.. */ |
| 1098 | if (c >= 0xE0000 && c <= 0xE007F) |
| 1099 | continue; |
| 1100 | |
| 1101 | /* U+FEFF is best seen as a null. */ |
| 1102 | if (c == 0xFEFF) |
| 1103 | continue; |
| 1104 | /* But U+FFFE is an error. */ |
| 1105 | if (c == 0xFFFE || c == 0xFFFF) |
| 1106 | c = UCSERR; |
| 1107 | |
| 1108 | /* Oops this is a 16bit implementation */ |
| 1109 | if (c >= 0x10000) |
| 1110 | c = 0xFFFD; |
| 1111 | break; |
| 1112 | } |
| 1113 | /* Are we in the nasty ACS mode? Note: no sco in utf mode. */ |
| 1114 | else if(sco_acs && |
| 1115 | (c!='\033' && c!='\n' && c!='\r' && c!='\b')) |
| 1116 | { |
| 1117 | if (sco_acs == 2) c ^= 0x80; |
| 1118 | c |= ATTR_SCOACS; |
| 1119 | } else { |
| 1120 | switch (cset_attr[cset]) { |
| 1121 | /* |
| 1122 | * Linedraw characters are different from 'ESC ( B' |
| 1123 | * only for a small range. For ones outside that |
| 1124 | * range, make sure we use the same font as well as |
| 1125 | * the same encoding. |
| 1126 | */ |
| 1127 | case ATTR_LINEDRW: |
| 1128 | if (unitab_ctrl[c] != 0xFF) |
| 1129 | c = unitab_ctrl[c]; |
| 1130 | else |
| 1131 | c = ((unsigned char) c) | ATTR_LINEDRW; |
| 1132 | break; |
| 1133 | |
| 1134 | case ATTR_GBCHR: |
| 1135 | /* If UK-ASCII, make the '#' a LineDraw Pound */ |
| 1136 | if (c == '#') { |
| 1137 | c = '}' | ATTR_LINEDRW; |
| 1138 | break; |
| 1139 | } |
| 1140 | /*FALLTHROUGH*/ case ATTR_ASCII: |
| 1141 | if (unitab_ctrl[c] != 0xFF) |
| 1142 | c = unitab_ctrl[c]; |
| 1143 | else |
| 1144 | c = ((unsigned char) c) | ATTR_ASCII; |
| 1145 | break; |
| 1146 | case ATTR_SCOACS: |
| 1147 | if (c>=' ') c = ((unsigned char)c) | ATTR_SCOACS; |
| 1148 | break; |
| 1149 | } |
| 1150 | } |
| 1151 | } |
| 1152 | |
| 1153 | /* How about C1 controls ? */ |
| 1154 | if ((c & -32) == 0x80 && termstate < DO_CTRLS && !vt52_mode && |
| 1155 | has_compat(VT220)) { |
| 1156 | termstate = SEEN_ESC; |
| 1157 | esc_query = FALSE; |
| 1158 | c = '@' + (c & 0x1F); |
| 1159 | } |
| 1160 | |
| 1161 | /* Or the GL control. */ |
| 1162 | if (c == '\177' && termstate < DO_CTRLS && has_compat(OTHER)) { |
| 1163 | if (curs.x && !wrapnext) |
| 1164 | curs.x--; |
| 1165 | wrapnext = FALSE; |
| 1166 | fix_cpos; |
| 1167 | *cpos = (' ' | curr_attr | ATTR_ASCII); |
| 1168 | } else |
| 1169 | /* Or normal C0 controls. */ |
| 1170 | if ((c & -32) == 0 && termstate < DO_CTRLS) { |
| 1171 | switch (c) { |
| 1172 | case '\005': /* terminal type query */ |
| 1173 | /* Strictly speaking this is VT100 but a VT100 defaults to |
| 1174 | * no response. Other terminals respond at their option. |
| 1175 | * |
| 1176 | * Don't put a CR in the default string as this tends to |
| 1177 | * upset some weird software. |
| 1178 | * |
| 1179 | * An xterm returns "xterm" (5 characters) |
| 1180 | */ |
| 1181 | compatibility(ANSIMIN); |
| 1182 | { |
| 1183 | char abuf[256], *s, *d; |
| 1184 | int state = 0; |
| 1185 | for (s = cfg.answerback, d = abuf; *s; s++) { |
| 1186 | if (state) { |
| 1187 | if (*s >= 'a' && *s <= 'z') |
| 1188 | *d++ = (*s - ('a' - 1)); |
| 1189 | else if ((*s >= '@' && *s <= '_') || |
| 1190 | *s == '?' || (*s & 0x80)) |
| 1191 | *d++ = ('@' ^ *s); |
| 1192 | else if (*s == '~') |
| 1193 | *d++ = '^'; |
| 1194 | state = 0; |
| 1195 | } else if (*s == '^') { |
| 1196 | state = 1; |
| 1197 | } else |
| 1198 | *d++ = *s; |
| 1199 | } |
| 1200 | lpage_send(CP_ACP, abuf, d - abuf, 0); |
| 1201 | } |
| 1202 | break; |
| 1203 | case '\007': |
| 1204 | { |
| 1205 | struct beeptime *newbeep; |
| 1206 | unsigned long ticks; |
| 1207 | |
| 1208 | ticks = GetTickCount(); |
| 1209 | |
| 1210 | if (!beep_overloaded) { |
| 1211 | newbeep = smalloc(sizeof(struct beeptime)); |
| 1212 | newbeep->ticks = ticks; |
| 1213 | newbeep->next = NULL; |
| 1214 | if (!beephead) |
| 1215 | beephead = newbeep; |
| 1216 | else |
| 1217 | beeptail->next = newbeep; |
| 1218 | beeptail = newbeep; |
| 1219 | nbeeps++; |
| 1220 | } |
| 1221 | |
| 1222 | /* |
| 1223 | * Throw out any beeps that happened more than |
| 1224 | * t seconds ago. |
| 1225 | */ |
| 1226 | while (beephead && |
| 1227 | beephead->ticks < ticks - cfg.bellovl_t) { |
| 1228 | struct beeptime *tmp = beephead; |
| 1229 | beephead = tmp->next; |
| 1230 | sfree(tmp); |
| 1231 | if (!beephead) |
| 1232 | beeptail = NULL; |
| 1233 | nbeeps--; |
| 1234 | } |
| 1235 | |
| 1236 | if (cfg.bellovl && beep_overloaded && |
| 1237 | ticks - lastbeep >= (unsigned)cfg.bellovl_s) { |
| 1238 | /* |
| 1239 | * If we're currently overloaded and the |
| 1240 | * last beep was more than s seconds ago, |
| 1241 | * leave overload mode. |
| 1242 | */ |
| 1243 | beep_overloaded = FALSE; |
| 1244 | } else if (cfg.bellovl && !beep_overloaded && |
| 1245 | nbeeps >= cfg.bellovl_n) { |
| 1246 | /* |
| 1247 | * Now, if we have n or more beeps |
| 1248 | * remaining in the queue, go into overload |
| 1249 | * mode. |
| 1250 | */ |
| 1251 | beep_overloaded = TRUE; |
| 1252 | } |
| 1253 | lastbeep = ticks; |
| 1254 | |
| 1255 | /* |
| 1256 | * Perform an actual beep if we're not overloaded. |
| 1257 | */ |
| 1258 | if (!cfg.bellovl || !beep_overloaded) { |
| 1259 | beep(cfg.beep); |
| 1260 | if (cfg.beep == BELL_VISUAL) { |
| 1261 | in_vbell = TRUE; |
| 1262 | vbell_startpoint = ticks; |
| 1263 | term_update(); |
| 1264 | } |
| 1265 | } |
| 1266 | disptop = 0; |
| 1267 | } |
| 1268 | break; |
| 1269 | case '\b': |
| 1270 | if (curs.x == 0 && (curs.y == 0 || wrap == 0)); |
| 1271 | else if (curs.x == 0 && curs.y > 0) |
| 1272 | curs.x = cols - 1, curs.y--; |
| 1273 | else if (wrapnext) |
| 1274 | wrapnext = FALSE; |
| 1275 | else |
| 1276 | curs.x--; |
| 1277 | fix_cpos; |
| 1278 | seen_disp_event = TRUE; |
| 1279 | break; |
| 1280 | case '\016': |
| 1281 | compatibility(VT100); |
| 1282 | cset = 1; |
| 1283 | break; |
| 1284 | case '\017': |
| 1285 | compatibility(VT100); |
| 1286 | cset = 0; |
| 1287 | break; |
| 1288 | case '\033': |
| 1289 | if (vt52_mode) |
| 1290 | termstate = VT52_ESC; |
| 1291 | else { |
| 1292 | compatibility(ANSIMIN); |
| 1293 | termstate = SEEN_ESC; |
| 1294 | esc_query = FALSE; |
| 1295 | } |
| 1296 | break; |
| 1297 | case '\r': |
| 1298 | curs.x = 0; |
| 1299 | wrapnext = FALSE; |
| 1300 | fix_cpos; |
| 1301 | seen_disp_event = TRUE; |
| 1302 | paste_hold = 0; |
| 1303 | logtraffic((unsigned char) c, LGTYP_ASCII); |
| 1304 | break; |
| 1305 | case '\014': |
| 1306 | if (has_compat(SCOANSI)) { |
| 1307 | move(0, 0, 0); |
| 1308 | erase_lots(FALSE, FALSE, TRUE); |
| 1309 | disptop = 0; |
| 1310 | wrapnext = FALSE; |
| 1311 | seen_disp_event = 1; |
| 1312 | break; |
| 1313 | } |
| 1314 | case '\013': |
| 1315 | compatibility(VT100); |
| 1316 | case '\n': |
| 1317 | if (curs.y == marg_b) |
| 1318 | scroll(marg_t, marg_b, 1, TRUE); |
| 1319 | else if (curs.y < rows - 1) |
| 1320 | curs.y++; |
| 1321 | if (cfg.lfhascr) |
| 1322 | curs.x = 0; |
| 1323 | fix_cpos; |
| 1324 | wrapnext = FALSE; |
| 1325 | seen_disp_event = 1; |
| 1326 | paste_hold = 0; |
| 1327 | logtraffic((unsigned char) c, LGTYP_ASCII); |
| 1328 | break; |
| 1329 | case '\t': |
| 1330 | { |
| 1331 | pos old_curs = curs; |
| 1332 | unsigned long *ldata = lineptr(curs.y); |
| 1333 | |
| 1334 | do { |
| 1335 | curs.x++; |
| 1336 | } while (curs.x < cols - 1 && !tabs[curs.x]); |
| 1337 | |
| 1338 | if ((ldata[cols] & LATTR_MODE) != LATTR_NORM) { |
| 1339 | if (curs.x >= cols / 2) |
| 1340 | curs.x = cols / 2 - 1; |
| 1341 | } else { |
| 1342 | if (curs.x >= cols) |
| 1343 | curs.x = cols - 1; |
| 1344 | } |
| 1345 | |
| 1346 | fix_cpos; |
| 1347 | check_selection(old_curs, curs); |
| 1348 | } |
| 1349 | seen_disp_event = TRUE; |
| 1350 | break; |
| 1351 | } |
| 1352 | } else |
| 1353 | switch (termstate) { |
| 1354 | case TOPLEVEL: |
| 1355 | /* Only graphic characters get this far, ctrls are stripped above */ |
| 1356 | if (wrapnext && wrap) { |
| 1357 | cpos[1] |= LATTR_WRAPPED; |
| 1358 | if (curs.y == marg_b) |
| 1359 | scroll(marg_t, marg_b, 1, TRUE); |
| 1360 | else if (curs.y < rows - 1) |
| 1361 | curs.y++; |
| 1362 | curs.x = 0; |
| 1363 | fix_cpos; |
| 1364 | wrapnext = FALSE; |
| 1365 | } |
| 1366 | if (insert) |
| 1367 | insch(1); |
| 1368 | if (selstate != NO_SELECTION) { |
| 1369 | pos cursplus = curs; |
| 1370 | incpos(cursplus); |
| 1371 | check_selection(curs, cursplus); |
| 1372 | } |
| 1373 | if ((c & CSET_MASK) == ATTR_ASCII || (c & CSET_MASK) == 0) |
| 1374 | logtraffic((unsigned char) c, LGTYP_ASCII); |
| 1375 | { |
| 1376 | extern int wcwidth(wchar_t ucs); |
| 1377 | int width = 0; |
| 1378 | if (DIRECT_CHAR(c)) |
| 1379 | width = 1; |
| 1380 | if (!width) |
| 1381 | width = wcwidth((wchar_t) c); |
| 1382 | switch (width) { |
| 1383 | case 2: |
| 1384 | *cpos++ = c | curr_attr; |
| 1385 | if (++curs.x == cols) { |
| 1386 | *cpos |= LATTR_WRAPPED; |
| 1387 | if (curs.y == marg_b) |
| 1388 | scroll(marg_t, marg_b, 1, TRUE); |
| 1389 | else if (curs.y < rows - 1) |
| 1390 | curs.y++; |
| 1391 | curs.x = 0; |
| 1392 | fix_cpos; |
| 1393 | } |
| 1394 | *cpos++ = UCSWIDE | curr_attr; |
| 1395 | break; |
| 1396 | case 1: |
| 1397 | *cpos++ = c | curr_attr; |
| 1398 | break; |
| 1399 | default: |
| 1400 | continue; |
| 1401 | } |
| 1402 | } |
| 1403 | curs.x++; |
| 1404 | if (curs.x == cols) { |
| 1405 | cpos--; |
| 1406 | curs.x--; |
| 1407 | wrapnext = TRUE; |
| 1408 | if (wrap && vt52_mode) { |
| 1409 | cpos[1] |= LATTR_WRAPPED; |
| 1410 | if (curs.y == marg_b) |
| 1411 | scroll(marg_t, marg_b, 1, TRUE); |
| 1412 | else if (curs.y < rows - 1) |
| 1413 | curs.y++; |
| 1414 | curs.x = 0; |
| 1415 | fix_cpos; |
| 1416 | wrapnext = FALSE; |
| 1417 | } |
| 1418 | } |
| 1419 | seen_disp_event = 1; |
| 1420 | break; |
| 1421 | |
| 1422 | case OSC_MAYBE_ST: |
| 1423 | /* |
| 1424 | * This state is virtually identical to SEEN_ESC, with the |
| 1425 | * exception that we have an OSC sequence in the pipeline, |
| 1426 | * and _if_ we see a backslash, we process it. |
| 1427 | */ |
| 1428 | if (c == '\\') { |
| 1429 | do_osc(); |
| 1430 | termstate = TOPLEVEL; |
| 1431 | break; |
| 1432 | } |
| 1433 | /* else fall through */ |
| 1434 | case SEEN_ESC: |
| 1435 | if (c >= ' ' && c <= '/') { |
| 1436 | if (esc_query) |
| 1437 | esc_query = -1; |
| 1438 | else |
| 1439 | esc_query = c; |
| 1440 | break; |
| 1441 | } |
| 1442 | termstate = TOPLEVEL; |
| 1443 | switch (ANSI(c, esc_query)) { |
| 1444 | case '[': /* enter CSI mode */ |
| 1445 | termstate = SEEN_CSI; |
| 1446 | esc_nargs = 1; |
| 1447 | esc_args[0] = ARG_DEFAULT; |
| 1448 | esc_query = FALSE; |
| 1449 | break; |
| 1450 | case ']': /* xterm escape sequences */ |
| 1451 | /* Compatibility is nasty here, xterm, linux, decterm yuk! */ |
| 1452 | compatibility(OTHER); |
| 1453 | termstate = SEEN_OSC; |
| 1454 | esc_args[0] = 0; |
| 1455 | break; |
| 1456 | case '7': /* save cursor */ |
| 1457 | compatibility(VT100); |
| 1458 | save_cursor(TRUE); |
| 1459 | break; |
| 1460 | case '8': /* restore cursor */ |
| 1461 | compatibility(VT100); |
| 1462 | save_cursor(FALSE); |
| 1463 | seen_disp_event = TRUE; |
| 1464 | break; |
| 1465 | case '=': |
| 1466 | compatibility(VT100); |
| 1467 | app_keypad_keys = TRUE; |
| 1468 | break; |
| 1469 | case '>': |
| 1470 | compatibility(VT100); |
| 1471 | app_keypad_keys = FALSE; |
| 1472 | break; |
| 1473 | case 'D': /* exactly equivalent to LF */ |
| 1474 | compatibility(VT100); |
| 1475 | if (curs.y == marg_b) |
| 1476 | scroll(marg_t, marg_b, 1, TRUE); |
| 1477 | else if (curs.y < rows - 1) |
| 1478 | curs.y++; |
| 1479 | fix_cpos; |
| 1480 | wrapnext = FALSE; |
| 1481 | seen_disp_event = TRUE; |
| 1482 | break; |
| 1483 | case 'E': /* exactly equivalent to CR-LF */ |
| 1484 | compatibility(VT100); |
| 1485 | curs.x = 0; |
| 1486 | if (curs.y == marg_b) |
| 1487 | scroll(marg_t, marg_b, 1, TRUE); |
| 1488 | else if (curs.y < rows - 1) |
| 1489 | curs.y++; |
| 1490 | fix_cpos; |
| 1491 | wrapnext = FALSE; |
| 1492 | seen_disp_event = TRUE; |
| 1493 | break; |
| 1494 | case 'M': /* reverse index - backwards LF */ |
| 1495 | compatibility(VT100); |
| 1496 | if (curs.y == marg_t) |
| 1497 | scroll(marg_t, marg_b, -1, TRUE); |
| 1498 | else if (curs.y > 0) |
| 1499 | curs.y--; |
| 1500 | fix_cpos; |
| 1501 | wrapnext = FALSE; |
| 1502 | seen_disp_event = TRUE; |
| 1503 | break; |
| 1504 | case 'Z': /* terminal type query */ |
| 1505 | compatibility(VT100); |
| 1506 | ldisc_send(id_string, strlen(id_string), 0); |
| 1507 | break; |
| 1508 | case 'c': /* restore power-on settings */ |
| 1509 | compatibility(VT100); |
| 1510 | power_on(); |
| 1511 | if (reset_132) { |
| 1512 | request_resize(80, rows); |
| 1513 | reset_132 = 0; |
| 1514 | } |
| 1515 | fix_cpos; |
| 1516 | disptop = 0; |
| 1517 | seen_disp_event = TRUE; |
| 1518 | break; |
| 1519 | case 'H': /* set a tab */ |
| 1520 | compatibility(VT100); |
| 1521 | tabs[curs.x] = TRUE; |
| 1522 | break; |
| 1523 | |
| 1524 | case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */ |
| 1525 | compatibility(VT100); |
| 1526 | { |
| 1527 | unsigned long *ldata; |
| 1528 | int i, j; |
| 1529 | pos scrtop, scrbot; |
| 1530 | |
| 1531 | for (i = 0; i < rows; i++) { |
| 1532 | ldata = lineptr(i); |
| 1533 | for (j = 0; j < cols; j++) |
| 1534 | ldata[j] = ATTR_DEFAULT | 'E'; |
| 1535 | ldata[cols] = 0; |
| 1536 | } |
| 1537 | disptop = 0; |
| 1538 | seen_disp_event = TRUE; |
| 1539 | scrtop.x = scrtop.y = 0; |
| 1540 | scrbot.x = 0; |
| 1541 | scrbot.y = rows; |
| 1542 | check_selection(scrtop, scrbot); |
| 1543 | } |
| 1544 | break; |
| 1545 | |
| 1546 | case ANSI('3', '#'): |
| 1547 | case ANSI('4', '#'): |
| 1548 | case ANSI('5', '#'): |
| 1549 | case ANSI('6', '#'): |
| 1550 | compatibility(VT100); |
| 1551 | { |
| 1552 | unsigned long nlattr; |
| 1553 | unsigned long *ldata; |
| 1554 | switch (ANSI(c, esc_query)) { |
| 1555 | case ANSI('3', '#'): |
| 1556 | nlattr = LATTR_TOP; |
| 1557 | break; |
| 1558 | case ANSI('4', '#'): |
| 1559 | nlattr = LATTR_BOT; |
| 1560 | break; |
| 1561 | case ANSI('5', '#'): |
| 1562 | nlattr = LATTR_NORM; |
| 1563 | break; |
| 1564 | default: /* spiritually case ANSI('6', '#'): */ |
| 1565 | nlattr = LATTR_WIDE; |
| 1566 | break; |
| 1567 | } |
| 1568 | ldata = lineptr(curs.y); |
| 1569 | ldata[cols] &= ~LATTR_MODE; |
| 1570 | ldata[cols] |= nlattr; |
| 1571 | } |
| 1572 | break; |
| 1573 | |
| 1574 | case ANSI('A', '('): |
| 1575 | compatibility(VT100); |
| 1576 | cset_attr[0] = ATTR_GBCHR; |
| 1577 | break; |
| 1578 | case ANSI('B', '('): |
| 1579 | compatibility(VT100); |
| 1580 | cset_attr[0] = ATTR_ASCII; |
| 1581 | break; |
| 1582 | case ANSI('0', '('): |
| 1583 | compatibility(VT100); |
| 1584 | cset_attr[0] = ATTR_LINEDRW; |
| 1585 | break; |
| 1586 | case ANSI('U', '('): |
| 1587 | compatibility(OTHER); |
| 1588 | cset_attr[0] = ATTR_SCOACS; |
| 1589 | break; |
| 1590 | |
| 1591 | case ANSI('A', ')'): |
| 1592 | compatibility(VT100); |
| 1593 | cset_attr[1] = ATTR_GBCHR; |
| 1594 | break; |
| 1595 | case ANSI('B', ')'): |
| 1596 | compatibility(VT100); |
| 1597 | cset_attr[1] = ATTR_ASCII; |
| 1598 | break; |
| 1599 | case ANSI('0', ')'): |
| 1600 | compatibility(VT100); |
| 1601 | cset_attr[1] = ATTR_LINEDRW; |
| 1602 | break; |
| 1603 | case ANSI('U', ')'): |
| 1604 | compatibility(OTHER); |
| 1605 | cset_attr[1] = ATTR_SCOACS; |
| 1606 | break; |
| 1607 | |
| 1608 | case ANSI('8', '%'): /* Old Linux code */ |
| 1609 | case ANSI('G', '%'): |
| 1610 | compatibility(OTHER); |
| 1611 | utf = 1; |
| 1612 | break; |
| 1613 | case ANSI('@', '%'): |
| 1614 | compatibility(OTHER); |
| 1615 | utf = 0; |
| 1616 | break; |
| 1617 | } |
| 1618 | break; |
| 1619 | case SEEN_CSI: |
| 1620 | termstate = TOPLEVEL; /* default */ |
| 1621 | if (isdigit(c)) { |
| 1622 | if (esc_nargs <= ARGS_MAX) { |
| 1623 | if (esc_args[esc_nargs - 1] == ARG_DEFAULT) |
| 1624 | esc_args[esc_nargs - 1] = 0; |
| 1625 | esc_args[esc_nargs - 1] = |
| 1626 | 10 * esc_args[esc_nargs - 1] + c - '0'; |
| 1627 | } |
| 1628 | termstate = SEEN_CSI; |
| 1629 | } else if (c == ';') { |
| 1630 | if (++esc_nargs <= ARGS_MAX) |
| 1631 | esc_args[esc_nargs - 1] = ARG_DEFAULT; |
| 1632 | termstate = SEEN_CSI; |
| 1633 | } else if (c < '@') { |
| 1634 | if (esc_query) |
| 1635 | esc_query = -1; |
| 1636 | else if (c == '?') |
| 1637 | esc_query = TRUE; |
| 1638 | else |
| 1639 | esc_query = c; |
| 1640 | termstate = SEEN_CSI; |
| 1641 | } else |
| 1642 | switch (ANSI(c, esc_query)) { |
| 1643 | case 'A': /* move up N lines */ |
| 1644 | move(curs.x, curs.y - def(esc_args[0], 1), 1); |
| 1645 | seen_disp_event = TRUE; |
| 1646 | break; |
| 1647 | case 'e': /* move down N lines */ |
| 1648 | compatibility(ANSI); |
| 1649 | /* FALLTHROUGH */ |
| 1650 | case 'B': |
| 1651 | move(curs.x, curs.y + def(esc_args[0], 1), 1); |
| 1652 | seen_disp_event = TRUE; |
| 1653 | break; |
| 1654 | case ANSI('c', '>'): /* report xterm version */ |
| 1655 | compatibility(OTHER); |
| 1656 | /* this reports xterm version 136 so that VIM can |
| 1657 | use the drag messages from the mouse reporting */ |
| 1658 | ldisc_send("\033[>0;136;0c", 11, 0); |
| 1659 | break; |
| 1660 | case 'a': /* move right N cols */ |
| 1661 | compatibility(ANSI); |
| 1662 | /* FALLTHROUGH */ |
| 1663 | case 'C': |
| 1664 | move(curs.x + def(esc_args[0], 1), curs.y, 1); |
| 1665 | seen_disp_event = TRUE; |
| 1666 | break; |
| 1667 | case 'D': /* move left N cols */ |
| 1668 | move(curs.x - def(esc_args[0], 1), curs.y, 1); |
| 1669 | seen_disp_event = TRUE; |
| 1670 | break; |
| 1671 | case 'E': /* move down N lines and CR */ |
| 1672 | compatibility(ANSI); |
| 1673 | move(0, curs.y + def(esc_args[0], 1), 1); |
| 1674 | seen_disp_event = TRUE; |
| 1675 | break; |
| 1676 | case 'F': /* move up N lines and CR */ |
| 1677 | compatibility(ANSI); |
| 1678 | move(0, curs.y - def(esc_args[0], 1), 1); |
| 1679 | seen_disp_event = TRUE; |
| 1680 | break; |
| 1681 | case 'G': |
| 1682 | case '`': /* set horizontal posn */ |
| 1683 | compatibility(ANSI); |
| 1684 | move(def(esc_args[0], 1) - 1, curs.y, 0); |
| 1685 | seen_disp_event = TRUE; |
| 1686 | break; |
| 1687 | case 'd': /* set vertical posn */ |
| 1688 | compatibility(ANSI); |
| 1689 | move(curs.x, |
| 1690 | (dec_om ? marg_t : 0) + def(esc_args[0], |
| 1691 | 1) - 1, |
| 1692 | (dec_om ? 2 : 0)); |
| 1693 | seen_disp_event = TRUE; |
| 1694 | break; |
| 1695 | case 'H': |
| 1696 | case 'f': /* set horz and vert posns at once */ |
| 1697 | if (esc_nargs < 2) |
| 1698 | esc_args[1] = ARG_DEFAULT; |
| 1699 | move(def(esc_args[1], 1) - 1, |
| 1700 | (dec_om ? marg_t : 0) + def(esc_args[0], |
| 1701 | 1) - 1, |
| 1702 | (dec_om ? 2 : 0)); |
| 1703 | seen_disp_event = TRUE; |
| 1704 | break; |
| 1705 | case 'J': /* erase screen or parts of it */ |
| 1706 | { |
| 1707 | unsigned int i = def(esc_args[0], 0) + 1; |
| 1708 | if (i > 3) |
| 1709 | i = 0; |
| 1710 | erase_lots(FALSE, !!(i & 2), !!(i & 1)); |
| 1711 | } |
| 1712 | disptop = 0; |
| 1713 | seen_disp_event = TRUE; |
| 1714 | break; |
| 1715 | case 'K': /* erase line or parts of it */ |
| 1716 | { |
| 1717 | unsigned int i = def(esc_args[0], 0) + 1; |
| 1718 | if (i > 3) |
| 1719 | i = 0; |
| 1720 | erase_lots(TRUE, !!(i & 2), !!(i & 1)); |
| 1721 | } |
| 1722 | seen_disp_event = TRUE; |
| 1723 | break; |
| 1724 | case 'L': /* insert lines */ |
| 1725 | compatibility(VT102); |
| 1726 | if (curs.y <= marg_b) |
| 1727 | scroll(curs.y, marg_b, -def(esc_args[0], 1), |
| 1728 | FALSE); |
| 1729 | fix_cpos; |
| 1730 | seen_disp_event = TRUE; |
| 1731 | break; |
| 1732 | case 'M': /* delete lines */ |
| 1733 | compatibility(VT102); |
| 1734 | if (curs.y <= marg_b) |
| 1735 | scroll(curs.y, marg_b, def(esc_args[0], 1), |
| 1736 | TRUE); |
| 1737 | fix_cpos; |
| 1738 | seen_disp_event = TRUE; |
| 1739 | break; |
| 1740 | case '@': /* insert chars */ |
| 1741 | /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ |
| 1742 | compatibility(VT102); |
| 1743 | insch(def(esc_args[0], 1)); |
| 1744 | seen_disp_event = TRUE; |
| 1745 | break; |
| 1746 | case 'P': /* delete chars */ |
| 1747 | compatibility(VT102); |
| 1748 | insch(-def(esc_args[0], 1)); |
| 1749 | seen_disp_event = TRUE; |
| 1750 | break; |
| 1751 | case 'c': /* terminal type query */ |
| 1752 | compatibility(VT100); |
| 1753 | /* This is the response for a VT102 */ |
| 1754 | ldisc_send(id_string, strlen(id_string), 0); |
| 1755 | break; |
| 1756 | case 'n': /* cursor position query */ |
| 1757 | if (esc_args[0] == 6) { |
| 1758 | char buf[32]; |
| 1759 | sprintf(buf, "\033[%d;%dR", curs.y + 1, |
| 1760 | curs.x + 1); |
| 1761 | ldisc_send(buf, strlen(buf), 0); |
| 1762 | } else if (esc_args[0] == 5) { |
| 1763 | ldisc_send("\033[0n", 4, 0); |
| 1764 | } |
| 1765 | break; |
| 1766 | case 'h': /* toggle modes to high */ |
| 1767 | case ANSI_QUE('h'): |
| 1768 | compatibility(VT100); |
| 1769 | { |
| 1770 | int i; |
| 1771 | for (i = 0; i < esc_nargs; i++) |
| 1772 | toggle_mode(esc_args[i], esc_query, TRUE); |
| 1773 | } |
| 1774 | break; |
| 1775 | case 'l': /* toggle modes to low */ |
| 1776 | case ANSI_QUE('l'): |
| 1777 | compatibility(VT100); |
| 1778 | { |
| 1779 | int i; |
| 1780 | for (i = 0; i < esc_nargs; i++) |
| 1781 | toggle_mode(esc_args[i], esc_query, FALSE); |
| 1782 | } |
| 1783 | break; |
| 1784 | case 'g': /* clear tabs */ |
| 1785 | compatibility(VT100); |
| 1786 | if (esc_nargs == 1) { |
| 1787 | if (esc_args[0] == 0) { |
| 1788 | tabs[curs.x] = FALSE; |
| 1789 | } else if (esc_args[0] == 3) { |
| 1790 | int i; |
| 1791 | for (i = 0; i < cols; i++) |
| 1792 | tabs[i] = FALSE; |
| 1793 | } |
| 1794 | } |
| 1795 | break; |
| 1796 | case 'r': /* set scroll margins */ |
| 1797 | compatibility(VT100); |
| 1798 | if (esc_nargs <= 2) { |
| 1799 | int top, bot; |
| 1800 | top = def(esc_args[0], 1) - 1; |
| 1801 | bot = (esc_nargs <= 1 |
| 1802 | || esc_args[1] == |
| 1803 | 0 ? rows : def(esc_args[1], rows)) - 1; |
| 1804 | if (bot >= rows) |
| 1805 | bot = rows - 1; |
| 1806 | /* VTTEST Bug 9 - if region is less than 2 lines |
| 1807 | * don't change region. |
| 1808 | */ |
| 1809 | if (bot - top > 0) { |
| 1810 | marg_t = top; |
| 1811 | marg_b = bot; |
| 1812 | curs.x = 0; |
| 1813 | /* |
| 1814 | * I used to think the cursor should be |
| 1815 | * placed at the top of the newly marginned |
| 1816 | * area. Apparently not: VMS TPU falls over |
| 1817 | * if so. |
| 1818 | * |
| 1819 | * Well actually it should for Origin mode - RDB |
| 1820 | */ |
| 1821 | curs.y = (dec_om ? marg_t : 0); |
| 1822 | fix_cpos; |
| 1823 | seen_disp_event = TRUE; |
| 1824 | } |
| 1825 | } |
| 1826 | break; |
| 1827 | case 'm': /* set graphics rendition */ |
| 1828 | { |
| 1829 | /* |
| 1830 | * A VT100 without the AVO only had one attribute, either |
| 1831 | * underline or reverse video depending on the cursor type, |
| 1832 | * this was selected by CSI 7m. |
| 1833 | * |
| 1834 | * case 2: |
| 1835 | * This is sometimes DIM, eg on the GIGI and Linux |
| 1836 | * case 8: |
| 1837 | * This is sometimes INVIS various ANSI. |
| 1838 | * case 21: |
| 1839 | * This like 22 disables BOLD, DIM and INVIS |
| 1840 | * |
| 1841 | * The ANSI colours appear on any terminal that has colour |
| 1842 | * (obviously) but the interaction between sgr0 and the |
| 1843 | * colours varies but is usually related to the background |
| 1844 | * colour erase item. |
| 1845 | * The interaction between colour attributes and the mono |
| 1846 | * ones is also very implementation dependent. |
| 1847 | * |
| 1848 | * The 39 and 49 attributes are likely to be unimplemented. |
| 1849 | */ |
| 1850 | int i; |
| 1851 | for (i = 0; i < esc_nargs; i++) { |
| 1852 | switch (def(esc_args[i], 0)) { |
| 1853 | case 0: /* restore defaults */ |
| 1854 | curr_attr = ATTR_DEFAULT; |
| 1855 | break; |
| 1856 | case 1: /* enable bold */ |
| 1857 | compatibility(VT100AVO); |
| 1858 | curr_attr |= ATTR_BOLD; |
| 1859 | break; |
| 1860 | case 21: /* (enable double underline) */ |
| 1861 | compatibility(OTHER); |
| 1862 | case 4: /* enable underline */ |
| 1863 | compatibility(VT100AVO); |
| 1864 | curr_attr |= ATTR_UNDER; |
| 1865 | break; |
| 1866 | case 5: /* enable blink */ |
| 1867 | compatibility(VT100AVO); |
| 1868 | curr_attr |= ATTR_BLINK; |
| 1869 | break; |
| 1870 | case 7: /* enable reverse video */ |
| 1871 | curr_attr |= ATTR_REVERSE; |
| 1872 | break; |
| 1873 | case 10: /* SCO acs off */ |
| 1874 | compatibility(SCOANSI); |
| 1875 | sco_acs = 0; break; |
| 1876 | case 11: /* SCO acs on */ |
| 1877 | compatibility(SCOANSI); |
| 1878 | sco_acs = 1; break; |
| 1879 | case 12: /* SCO acs on flipped */ |
| 1880 | compatibility(SCOANSI); |
| 1881 | sco_acs = 2; break; |
| 1882 | case 22: /* disable bold */ |
| 1883 | compatibility2(OTHER, VT220); |
| 1884 | curr_attr &= ~ATTR_BOLD; |
| 1885 | break; |
| 1886 | case 24: /* disable underline */ |
| 1887 | compatibility2(OTHER, VT220); |
| 1888 | curr_attr &= ~ATTR_UNDER; |
| 1889 | break; |
| 1890 | case 25: /* disable blink */ |
| 1891 | compatibility2(OTHER, VT220); |
| 1892 | curr_attr &= ~ATTR_BLINK; |
| 1893 | break; |
| 1894 | case 27: /* disable reverse video */ |
| 1895 | compatibility2(OTHER, VT220); |
| 1896 | curr_attr &= ~ATTR_REVERSE; |
| 1897 | break; |
| 1898 | case 30: |
| 1899 | case 31: |
| 1900 | case 32: |
| 1901 | case 33: |
| 1902 | case 34: |
| 1903 | case 35: |
| 1904 | case 36: |
| 1905 | case 37: |
| 1906 | /* foreground */ |
| 1907 | curr_attr &= ~ATTR_FGMASK; |
| 1908 | curr_attr |= |
| 1909 | (esc_args[i] - 30) << ATTR_FGSHIFT; |
| 1910 | break; |
| 1911 | case 39: /* default-foreground */ |
| 1912 | curr_attr &= ~ATTR_FGMASK; |
| 1913 | curr_attr |= ATTR_DEFFG; |
| 1914 | break; |
| 1915 | case 40: |
| 1916 | case 41: |
| 1917 | case 42: |
| 1918 | case 43: |
| 1919 | case 44: |
| 1920 | case 45: |
| 1921 | case 46: |
| 1922 | case 47: |
| 1923 | /* background */ |
| 1924 | curr_attr &= ~ATTR_BGMASK; |
| 1925 | curr_attr |= |
| 1926 | (esc_args[i] - 40) << ATTR_BGSHIFT; |
| 1927 | break; |
| 1928 | case 49: /* default-background */ |
| 1929 | curr_attr &= ~ATTR_BGMASK; |
| 1930 | curr_attr |= ATTR_DEFBG; |
| 1931 | break; |
| 1932 | } |
| 1933 | } |
| 1934 | if (use_bce) |
| 1935 | erase_char = (' ' | ATTR_ASCII | |
| 1936 | (curr_attr & |
| 1937 | (ATTR_FGMASK | ATTR_BGMASK))); |
| 1938 | } |
| 1939 | break; |
| 1940 | case 's': /* save cursor */ |
| 1941 | save_cursor(TRUE); |
| 1942 | break; |
| 1943 | case 'u': /* restore cursor */ |
| 1944 | save_cursor(FALSE); |
| 1945 | seen_disp_event = TRUE; |
| 1946 | break; |
| 1947 | case 't': /* set page size - ie window height */ |
| 1948 | /* |
| 1949 | * VT340/VT420 sequence DECSLPP, DEC only allows values |
| 1950 | * 24/25/36/48/72/144 other emulators (eg dtterm) use |
| 1951 | * illegal values (eg first arg 1..9) for window changing |
| 1952 | * and reports. |
| 1953 | */ |
| 1954 | if (esc_nargs <= 1 |
| 1955 | && (esc_args[0] < 1 || esc_args[0] >= 24)) { |
| 1956 | compatibility(VT340TEXT); |
| 1957 | request_resize(cols, def(esc_args[0], 24)); |
| 1958 | deselect(); |
| 1959 | } else if (esc_nargs >= 1 && |
| 1960 | esc_args[0] >= 1 && |
| 1961 | esc_args[0] < 24) { |
| 1962 | compatibility(OTHER); |
| 1963 | |
| 1964 | switch (esc_args[0]) { |
| 1965 | int x, y, len; |
| 1966 | char buf[80], *p; |
| 1967 | case 1: |
| 1968 | set_iconic(FALSE); |
| 1969 | break; |
| 1970 | case 2: |
| 1971 | set_iconic(TRUE); |
| 1972 | break; |
| 1973 | case 3: |
| 1974 | if (esc_nargs >= 3) { |
| 1975 | move_window(def(esc_args[1], 0), |
| 1976 | def(esc_args[2], 0)); |
| 1977 | } |
| 1978 | break; |
| 1979 | case 4: |
| 1980 | /* We should resize the window to a given |
| 1981 | * size in pixels here, but currently our |
| 1982 | * resizing code isn't healthy enough to |
| 1983 | * manage it. */ |
| 1984 | break; |
| 1985 | case 5: |
| 1986 | set_zorder(TRUE); /* move to top */ |
| 1987 | break; |
| 1988 | case 6: |
| 1989 | set_zorder(FALSE); /* move to bottom */ |
| 1990 | break; |
| 1991 | case 7: |
| 1992 | refresh_window(); |
| 1993 | break; |
| 1994 | case 8: |
| 1995 | if (esc_nargs >= 3) { |
| 1996 | request_resize(def(esc_args[1], cfg.width), |
| 1997 | def(esc_args[2], cfg.height)); |
| 1998 | } |
| 1999 | break; |
| 2000 | case 9: |
| 2001 | if (esc_nargs >= 2) |
| 2002 | set_zoomed(esc_args[1] ? TRUE : FALSE); |
| 2003 | break; |
| 2004 | case 11: |
| 2005 | ldisc_send(is_iconic() ? "\033[1t" : "\033[2t", |
| 2006 | 4, 0); |
| 2007 | break; |
| 2008 | case 13: |
| 2009 | get_window_pos(&x, &y); |
| 2010 | len = sprintf(buf, "\033[3;%d;%dt", x, y); |
| 2011 | ldisc_send(buf, len, 0); |
| 2012 | break; |
| 2013 | case 14: |
| 2014 | get_window_pixels(&x, &y); |
| 2015 | len = sprintf(buf, "\033[4;%d;%dt", x, y); |
| 2016 | ldisc_send(buf, len, 0); |
| 2017 | break; |
| 2018 | case 18: |
| 2019 | len = sprintf(buf, "\033[8;%d;%dt", |
| 2020 | cols, rows); |
| 2021 | ldisc_send(buf, len, 0); |
| 2022 | break; |
| 2023 | case 19: |
| 2024 | /* |
| 2025 | * Hmmm. Strictly speaking we |
| 2026 | * should return `the size of the |
| 2027 | * screen in characters', but |
| 2028 | * that's not easy: (a) window |
| 2029 | * furniture being what it is it's |
| 2030 | * hard to compute, and (b) in |
| 2031 | * resize-font mode maximising the |
| 2032 | * window wouldn't change the |
| 2033 | * number of characters. *shrug*. I |
| 2034 | * think we'll ignore it for the |
| 2035 | * moment and see if anyone |
| 2036 | * complains, and then ask them |
| 2037 | * what they would like it to do. |
| 2038 | */ |
| 2039 | break; |
| 2040 | case 20: |
| 2041 | p = get_window_title(TRUE); |
| 2042 | len = strlen(p); |
| 2043 | ldisc_send("\033]L", 3, 0); |
| 2044 | ldisc_send(p, len, 0); |
| 2045 | ldisc_send("\033\\", 2, 0); |
| 2046 | break; |
| 2047 | case 21: |
| 2048 | p = get_window_title(FALSE); |
| 2049 | len = strlen(p); |
| 2050 | ldisc_send("\033]l", 3, 0); |
| 2051 | ldisc_send(p, len, 0); |
| 2052 | ldisc_send("\033\\", 2, 0); |
| 2053 | break; |
| 2054 | } |
| 2055 | } |
| 2056 | break; |
| 2057 | case 'S': |
| 2058 | compatibility(SCOANSI); |
| 2059 | scroll(marg_t, marg_b, def(esc_args[0], 1), TRUE); |
| 2060 | fix_cpos; |
| 2061 | wrapnext = FALSE; |
| 2062 | seen_disp_event = TRUE; |
| 2063 | break; |
| 2064 | case 'T': |
| 2065 | compatibility(SCOANSI); |
| 2066 | scroll(marg_t, marg_b, -def(esc_args[0], 1), TRUE); |
| 2067 | fix_cpos; |
| 2068 | wrapnext = FALSE; |
| 2069 | seen_disp_event = TRUE; |
| 2070 | break; |
| 2071 | case ANSI('|', '*'): |
| 2072 | /* VT420 sequence DECSNLS |
| 2073 | * Set number of lines on screen |
| 2074 | * VT420 uses VGA like hardware and can support any size in |
| 2075 | * reasonable range (24..49 AIUI) with no default specified. |
| 2076 | */ |
| 2077 | compatibility(VT420); |
| 2078 | if (esc_nargs == 1 && esc_args[0] > 0) { |
| 2079 | request_resize(cols, def(esc_args[0], cfg.height)); |
| 2080 | deselect(); |
| 2081 | } |
| 2082 | break; |
| 2083 | case ANSI('|', '$'): |
| 2084 | /* VT340/VT420 sequence DECSCPP |
| 2085 | * Set number of columns per page |
| 2086 | * Docs imply range is only 80 or 132, but I'll allow any. |
| 2087 | */ |
| 2088 | compatibility(VT340TEXT); |
| 2089 | if (esc_nargs <= 1) { |
| 2090 | request_resize(def(esc_args[0], cfg.width), rows); |
| 2091 | deselect(); |
| 2092 | } |
| 2093 | break; |
| 2094 | case 'X': /* write N spaces w/o moving cursor */ |
| 2095 | /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ |
| 2096 | compatibility(ANSIMIN); |
| 2097 | { |
| 2098 | int n = def(esc_args[0], 1); |
| 2099 | pos cursplus; |
| 2100 | unsigned long *p = cpos; |
| 2101 | if (n > cols - curs.x) |
| 2102 | n = cols - curs.x; |
| 2103 | cursplus = curs; |
| 2104 | cursplus.x += n; |
| 2105 | check_selection(curs, cursplus); |
| 2106 | while (n--) |
| 2107 | *p++ = erase_char; |
| 2108 | seen_disp_event = TRUE; |
| 2109 | } |
| 2110 | break; |
| 2111 | case 'x': /* report terminal characteristics */ |
| 2112 | compatibility(VT100); |
| 2113 | { |
| 2114 | char buf[32]; |
| 2115 | int i = def(esc_args[0], 0); |
| 2116 | if (i == 0 || i == 1) { |
| 2117 | strcpy(buf, "\033[2;1;1;112;112;1;0x"); |
| 2118 | buf[2] += i; |
| 2119 | ldisc_send(buf, 20, 0); |
| 2120 | } |
| 2121 | } |
| 2122 | break; |
| 2123 | case 'Z': /* BackTab for xterm */ |
| 2124 | compatibility(OTHER); |
| 2125 | { |
| 2126 | int i = def(esc_args[0], 1); |
| 2127 | pos old_curs = curs; |
| 2128 | |
| 2129 | for(;i>0 && curs.x>0; i--) { |
| 2130 | do { |
| 2131 | curs.x--; |
| 2132 | } while (curs.x >0 && !tabs[curs.x]); |
| 2133 | } |
| 2134 | fix_cpos; |
| 2135 | check_selection(old_curs, curs); |
| 2136 | } |
| 2137 | break; |
| 2138 | case ANSI('L', '='): |
| 2139 | compatibility(OTHER); |
| 2140 | use_bce = (esc_args[0] <= 0); |
| 2141 | erase_char = ERASE_CHAR; |
| 2142 | if (use_bce) |
| 2143 | erase_char = (' ' | ATTR_ASCII | |
| 2144 | (curr_attr & |
| 2145 | (ATTR_FGMASK | ATTR_BGMASK))); |
| 2146 | break; |
| 2147 | case ANSI('E', '='): |
| 2148 | compatibility(OTHER); |
| 2149 | blink_is_real = (esc_args[0] >= 1); |
| 2150 | break; |
| 2151 | case ANSI('p', '"'): |
| 2152 | /* Allow the host to make this emulator a 'perfect' VT102. |
| 2153 | * This first appeared in the VT220, but we do need to get |
| 2154 | * back to PuTTY mode so I won't check it. |
| 2155 | * |
| 2156 | * The arg in 40..42,50 are a PuTTY extension. |
| 2157 | * The 2nd arg, 8bit vs 7bit is not checked. |
| 2158 | * |
| 2159 | * Setting VT102 mode should also change the Fkeys to |
| 2160 | * generate PF* codes as a real VT102 has no Fkeys. |
| 2161 | * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys |
| 2162 | * send nothing. |
| 2163 | * |
| 2164 | * Note ESC c will NOT change this! |
| 2165 | */ |
| 2166 | |
| 2167 | switch (esc_args[0]) { |
| 2168 | case 61: |
| 2169 | compatibility_level &= ~TM_VTXXX; |
| 2170 | compatibility_level |= TM_VT102; |
| 2171 | break; |
| 2172 | case 62: |
| 2173 | compatibility_level &= ~TM_VTXXX; |
| 2174 | compatibility_level |= TM_VT220; |
| 2175 | break; |
| 2176 | |
| 2177 | default: |
| 2178 | if (esc_args[0] > 60 && esc_args[0] < 70) |
| 2179 | compatibility_level |= TM_VTXXX; |
| 2180 | break; |
| 2181 | |
| 2182 | case 40: |
| 2183 | compatibility_level &= TM_VTXXX; |
| 2184 | break; |
| 2185 | case 41: |
| 2186 | compatibility_level = TM_PUTTY; |
| 2187 | break; |
| 2188 | case 42: |
| 2189 | compatibility_level = TM_SCOANSI; |
| 2190 | break; |
| 2191 | |
| 2192 | case ARG_DEFAULT: |
| 2193 | compatibility_level = TM_PUTTY; |
| 2194 | break; |
| 2195 | case 50: |
| 2196 | break; |
| 2197 | } |
| 2198 | |
| 2199 | /* Change the response to CSI c */ |
| 2200 | if (esc_args[0] == 50) { |
| 2201 | int i; |
| 2202 | char lbuf[64]; |
| 2203 | strcpy(id_string, "\033[?"); |
| 2204 | for (i = 1; i < esc_nargs; i++) { |
| 2205 | if (i != 1) |
| 2206 | strcat(id_string, ";"); |
| 2207 | sprintf(lbuf, "%d", esc_args[i]); |
| 2208 | strcat(id_string, lbuf); |
| 2209 | } |
| 2210 | strcat(id_string, "c"); |
| 2211 | } |
| 2212 | #if 0 |
| 2213 | /* Is this a good idea ? |
| 2214 | * Well we should do a soft reset at this point ... |
| 2215 | */ |
| 2216 | if (!has_compat(VT420) && has_compat(VT100)) { |
| 2217 | if (reset_132) |
| 2218 | request_resize(132, 24); |
| 2219 | else |
| 2220 | request_resize(80, 24); |
| 2221 | } |
| 2222 | #endif |
| 2223 | break; |
| 2224 | } |
| 2225 | break; |
| 2226 | case SEEN_OSC: |
| 2227 | osc_w = FALSE; |
| 2228 | switch (c) { |
| 2229 | case 'P': /* Linux palette sequence */ |
| 2230 | termstate = SEEN_OSC_P; |
| 2231 | osc_strlen = 0; |
| 2232 | break; |
| 2233 | case 'R': /* Linux palette reset */ |
| 2234 | palette_reset(); |
| 2235 | term_invalidate(); |
| 2236 | termstate = TOPLEVEL; |
| 2237 | break; |
| 2238 | case 'W': /* word-set */ |
| 2239 | termstate = SEEN_OSC_W; |
| 2240 | osc_w = TRUE; |
| 2241 | break; |
| 2242 | case '0': |
| 2243 | case '1': |
| 2244 | case '2': |
| 2245 | case '3': |
| 2246 | case '4': |
| 2247 | case '5': |
| 2248 | case '6': |
| 2249 | case '7': |
| 2250 | case '8': |
| 2251 | case '9': |
| 2252 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
| 2253 | break; |
| 2254 | case 'L': |
| 2255 | /* |
| 2256 | * Grotty hack to support xterm and DECterm title |
| 2257 | * sequences concurrently. |
| 2258 | */ |
| 2259 | if (esc_args[0] == 2) { |
| 2260 | esc_args[0] = 1; |
| 2261 | break; |
| 2262 | } |
| 2263 | /* else fall through */ |
| 2264 | default: |
| 2265 | termstate = OSC_STRING; |
| 2266 | osc_strlen = 0; |
| 2267 | } |
| 2268 | break; |
| 2269 | case OSC_STRING: |
| 2270 | /* |
| 2271 | * This OSC stuff is EVIL. It takes just one character to get into |
| 2272 | * sysline mode and it's not initially obvious how to get out. |
| 2273 | * So I've added CR and LF as string aborts. |
| 2274 | * This shouldn't effect compatibility as I believe embedded |
| 2275 | * control characters are supposed to be interpreted (maybe?) |
| 2276 | * and they don't display anything useful anyway. |
| 2277 | * |
| 2278 | * -- RDB |
| 2279 | */ |
| 2280 | if (c == '\n' || c == '\r') { |
| 2281 | termstate = TOPLEVEL; |
| 2282 | } else if (c == 0234 || c == '\007') { |
| 2283 | /* |
| 2284 | * These characters terminate the string; ST and BEL |
| 2285 | * terminate the sequence and trigger instant |
| 2286 | * processing of it, whereas ESC goes back to SEEN_ESC |
| 2287 | * mode unless it is followed by \, in which case it is |
| 2288 | * synonymous with ST in the first place. |
| 2289 | */ |
| 2290 | do_osc(); |
| 2291 | termstate = TOPLEVEL; |
| 2292 | } else if (c == '\033') |
| 2293 | termstate = OSC_MAYBE_ST; |
| 2294 | else if (osc_strlen < OSC_STR_MAX) |
| 2295 | osc_string[osc_strlen++] = c; |
| 2296 | break; |
| 2297 | case SEEN_OSC_P: |
| 2298 | { |
| 2299 | int max = (osc_strlen == 0 ? 21 : 16); |
| 2300 | int val; |
| 2301 | if (c >= '0' && c <= '9') |
| 2302 | val = c - '0'; |
| 2303 | else if (c >= 'A' && c <= 'A' + max - 10) |
| 2304 | val = c - 'A' + 10; |
| 2305 | else if (c >= 'a' && c <= 'a' + max - 10) |
| 2306 | val = c - 'a' + 10; |
| 2307 | else { |
| 2308 | termstate = TOPLEVEL; |
| 2309 | break; |
| 2310 | } |
| 2311 | osc_string[osc_strlen++] = val; |
| 2312 | if (osc_strlen >= 7) { |
| 2313 | palette_set(osc_string[0], |
| 2314 | osc_string[1] * 16 + osc_string[2], |
| 2315 | osc_string[3] * 16 + osc_string[4], |
| 2316 | osc_string[5] * 16 + osc_string[6]); |
| 2317 | term_invalidate(); |
| 2318 | termstate = TOPLEVEL; |
| 2319 | } |
| 2320 | } |
| 2321 | break; |
| 2322 | case SEEN_OSC_W: |
| 2323 | switch (c) { |
| 2324 | case '0': |
| 2325 | case '1': |
| 2326 | case '2': |
| 2327 | case '3': |
| 2328 | case '4': |
| 2329 | case '5': |
| 2330 | case '6': |
| 2331 | case '7': |
| 2332 | case '8': |
| 2333 | case '9': |
| 2334 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
| 2335 | break; |
| 2336 | default: |
| 2337 | termstate = OSC_STRING; |
| 2338 | osc_strlen = 0; |
| 2339 | } |
| 2340 | break; |
| 2341 | case VT52_ESC: |
| 2342 | termstate = TOPLEVEL; |
| 2343 | seen_disp_event = TRUE; |
| 2344 | switch (c) { |
| 2345 | case 'A': |
| 2346 | move(curs.x, curs.y - 1, 1); |
| 2347 | break; |
| 2348 | case 'B': |
| 2349 | move(curs.x, curs.y + 1, 1); |
| 2350 | break; |
| 2351 | case 'C': |
| 2352 | move(curs.x + 1, curs.y, 1); |
| 2353 | break; |
| 2354 | case 'D': |
| 2355 | move(curs.x - 1, curs.y, 1); |
| 2356 | break; |
| 2357 | /* |
| 2358 | * From the VT100 Manual |
| 2359 | * NOTE: The special graphics characters in the VT100 |
| 2360 | * are different from those in the VT52 |
| 2361 | * |
| 2362 | * From VT102 manual: |
| 2363 | * 137 _ Blank - Same |
| 2364 | * 140 ` Reserved - Humm. |
| 2365 | * 141 a Solid rectangle - Similar |
| 2366 | * 142 b 1/ - Top half of fraction for the |
| 2367 | * 143 c 3/ - subscript numbers below. |
| 2368 | * 144 d 5/ |
| 2369 | * 145 e 7/ |
| 2370 | * 146 f Degrees - Same |
| 2371 | * 147 g Plus or minus - Same |
| 2372 | * 150 h Right arrow |
| 2373 | * 151 i Ellipsis (dots) |
| 2374 | * 152 j Divide by |
| 2375 | * 153 k Down arrow |
| 2376 | * 154 l Bar at scan 0 |
| 2377 | * 155 m Bar at scan 1 |
| 2378 | * 156 n Bar at scan 2 |
| 2379 | * 157 o Bar at scan 3 - Similar |
| 2380 | * 160 p Bar at scan 4 - Similar |
| 2381 | * 161 q Bar at scan 5 - Similar |
| 2382 | * 162 r Bar at scan 6 - Same |
| 2383 | * 163 s Bar at scan 7 - Similar |
| 2384 | * 164 t Subscript 0 |
| 2385 | * 165 u Subscript 1 |
| 2386 | * 166 v Subscript 2 |
| 2387 | * 167 w Subscript 3 |
| 2388 | * 170 x Subscript 4 |
| 2389 | * 171 y Subscript 5 |
| 2390 | * 172 z Subscript 6 |
| 2391 | * 173 { Subscript 7 |
| 2392 | * 174 | Subscript 8 |
| 2393 | * 175 } Subscript 9 |
| 2394 | * 176 ~ Paragraph |
| 2395 | * |
| 2396 | */ |
| 2397 | case 'F': |
| 2398 | cset_attr[cset = 0] = ATTR_LINEDRW; |
| 2399 | break; |
| 2400 | case 'G': |
| 2401 | cset_attr[cset = 0] = ATTR_ASCII; |
| 2402 | break; |
| 2403 | case 'H': |
| 2404 | move(0, 0, 0); |
| 2405 | break; |
| 2406 | case 'I': |
| 2407 | if (curs.y == 0) |
| 2408 | scroll(0, rows - 1, -1, TRUE); |
| 2409 | else if (curs.y > 0) |
| 2410 | curs.y--; |
| 2411 | fix_cpos; |
| 2412 | wrapnext = FALSE; |
| 2413 | break; |
| 2414 | case 'J': |
| 2415 | erase_lots(FALSE, FALSE, TRUE); |
| 2416 | disptop = 0; |
| 2417 | break; |
| 2418 | case 'K': |
| 2419 | erase_lots(TRUE, FALSE, TRUE); |
| 2420 | break; |
| 2421 | #if 0 |
| 2422 | case 'V': |
| 2423 | /* XXX Print cursor line */ |
| 2424 | break; |
| 2425 | case 'W': |
| 2426 | /* XXX Start controller mode */ |
| 2427 | break; |
| 2428 | case 'X': |
| 2429 | /* XXX Stop controller mode */ |
| 2430 | break; |
| 2431 | #endif |
| 2432 | case 'Y': |
| 2433 | termstate = VT52_Y1; |
| 2434 | break; |
| 2435 | case 'Z': |
| 2436 | ldisc_send("\033/Z", 3, 0); |
| 2437 | break; |
| 2438 | case '=': |
| 2439 | app_keypad_keys = TRUE; |
| 2440 | break; |
| 2441 | case '>': |
| 2442 | app_keypad_keys = FALSE; |
| 2443 | break; |
| 2444 | case '<': |
| 2445 | /* XXX This should switch to VT100 mode not current or default |
| 2446 | * VT mode. But this will only have effect in a VT220+ |
| 2447 | * emulation. |
| 2448 | */ |
| 2449 | vt52_mode = FALSE; |
| 2450 | blink_is_real = cfg.blinktext; |
| 2451 | break; |
| 2452 | #if 0 |
| 2453 | case '^': |
| 2454 | /* XXX Enter auto print mode */ |
| 2455 | break; |
| 2456 | case '_': |
| 2457 | /* XXX Exit auto print mode */ |
| 2458 | break; |
| 2459 | case ']': |
| 2460 | /* XXX Print screen */ |
| 2461 | break; |
| 2462 | #endif |
| 2463 | |
| 2464 | #ifdef VT52_PLUS |
| 2465 | case 'E': |
| 2466 | /* compatibility(ATARI) */ |
| 2467 | move(0, 0, 0); |
| 2468 | erase_lots(FALSE, FALSE, TRUE); |
| 2469 | disptop = 0; |
| 2470 | break; |
| 2471 | case 'L': |
| 2472 | /* compatibility(ATARI) */ |
| 2473 | if (curs.y <= marg_b) |
| 2474 | scroll(curs.y, marg_b, -1, FALSE); |
| 2475 | break; |
| 2476 | case 'M': |
| 2477 | /* compatibility(ATARI) */ |
| 2478 | if (curs.y <= marg_b) |
| 2479 | scroll(curs.y, marg_b, 1, TRUE); |
| 2480 | break; |
| 2481 | case 'b': |
| 2482 | /* compatibility(ATARI) */ |
| 2483 | termstate = VT52_FG; |
| 2484 | break; |
| 2485 | case 'c': |
| 2486 | /* compatibility(ATARI) */ |
| 2487 | termstate = VT52_BG; |
| 2488 | break; |
| 2489 | case 'd': |
| 2490 | /* compatibility(ATARI) */ |
| 2491 | erase_lots(FALSE, TRUE, FALSE); |
| 2492 | disptop = 0; |
| 2493 | break; |
| 2494 | case 'e': |
| 2495 | /* compatibility(ATARI) */ |
| 2496 | cursor_on = TRUE; |
| 2497 | break; |
| 2498 | case 'f': |
| 2499 | /* compatibility(ATARI) */ |
| 2500 | cursor_on = FALSE; |
| 2501 | break; |
| 2502 | /* case 'j': Save cursor position - broken on ST */ |
| 2503 | /* case 'k': Restore cursor position */ |
| 2504 | case 'l': |
| 2505 | /* compatibility(ATARI) */ |
| 2506 | erase_lots(TRUE, TRUE, TRUE); |
| 2507 | curs.x = 0; |
| 2508 | wrapnext = FALSE; |
| 2509 | fix_cpos; |
| 2510 | break; |
| 2511 | case 'o': |
| 2512 | /* compatibility(ATARI) */ |
| 2513 | erase_lots(TRUE, TRUE, FALSE); |
| 2514 | break; |
| 2515 | case 'p': |
| 2516 | /* compatibility(ATARI) */ |
| 2517 | curr_attr |= ATTR_REVERSE; |
| 2518 | break; |
| 2519 | case 'q': |
| 2520 | /* compatibility(ATARI) */ |
| 2521 | curr_attr &= ~ATTR_REVERSE; |
| 2522 | break; |
| 2523 | case 'v': /* wrap Autowrap on - Wyse style */ |
| 2524 | /* compatibility(ATARI) */ |
| 2525 | wrap = 1; |
| 2526 | break; |
| 2527 | case 'w': /* Autowrap off */ |
| 2528 | /* compatibility(ATARI) */ |
| 2529 | wrap = 0; |
| 2530 | break; |
| 2531 | |
| 2532 | case 'R': |
| 2533 | /* compatibility(OTHER) */ |
| 2534 | vt52_bold = FALSE; |
| 2535 | curr_attr = ATTR_DEFAULT; |
| 2536 | if (use_bce) |
| 2537 | erase_char = (' ' | ATTR_ASCII | |
| 2538 | (curr_attr & |
| 2539 | (ATTR_FGMASK | ATTR_BGMASK))); |
| 2540 | break; |
| 2541 | case 'S': |
| 2542 | /* compatibility(VI50) */ |
| 2543 | curr_attr |= ATTR_UNDER; |
| 2544 | break; |
| 2545 | case 'W': |
| 2546 | /* compatibility(VI50) */ |
| 2547 | curr_attr &= ~ATTR_UNDER; |
| 2548 | break; |
| 2549 | case 'U': |
| 2550 | /* compatibility(VI50) */ |
| 2551 | vt52_bold = TRUE; |
| 2552 | curr_attr |= ATTR_BOLD; |
| 2553 | break; |
| 2554 | case 'T': |
| 2555 | /* compatibility(VI50) */ |
| 2556 | vt52_bold = FALSE; |
| 2557 | curr_attr &= ~ATTR_BOLD; |
| 2558 | break; |
| 2559 | #endif |
| 2560 | } |
| 2561 | break; |
| 2562 | case VT52_Y1: |
| 2563 | termstate = VT52_Y2; |
| 2564 | move(curs.x, c - ' ', 0); |
| 2565 | break; |
| 2566 | case VT52_Y2: |
| 2567 | termstate = TOPLEVEL; |
| 2568 | move(c - ' ', curs.y, 0); |
| 2569 | break; |
| 2570 | |
| 2571 | #ifdef VT52_PLUS |
| 2572 | case VT52_FG: |
| 2573 | termstate = TOPLEVEL; |
| 2574 | curr_attr &= ~ATTR_FGMASK; |
| 2575 | curr_attr &= ~ATTR_BOLD; |
| 2576 | curr_attr |= (c & 0x7) << ATTR_FGSHIFT; |
| 2577 | if ((c & 0x8) || vt52_bold) |
| 2578 | curr_attr |= ATTR_BOLD; |
| 2579 | |
| 2580 | if (use_bce) |
| 2581 | erase_char = (' ' | ATTR_ASCII | |
| 2582 | (curr_attr & (ATTR_FGMASK | ATTR_BGMASK))); |
| 2583 | break; |
| 2584 | case VT52_BG: |
| 2585 | termstate = TOPLEVEL; |
| 2586 | curr_attr &= ~ATTR_BGMASK; |
| 2587 | curr_attr &= ~ATTR_BLINK; |
| 2588 | curr_attr |= (c & 0x7) << ATTR_BGSHIFT; |
| 2589 | |
| 2590 | /* Note: bold background */ |
| 2591 | if (c & 0x8) |
| 2592 | curr_attr |= ATTR_BLINK; |
| 2593 | |
| 2594 | if (use_bce) |
| 2595 | erase_char = (' ' | ATTR_ASCII | |
| 2596 | (curr_attr & (ATTR_FGMASK | ATTR_BGMASK))); |
| 2597 | break; |
| 2598 | #endif |
| 2599 | default: break; /* placate gcc warning about enum use */ |
| 2600 | } |
| 2601 | if (selstate != NO_SELECTION) { |
| 2602 | pos cursplus = curs; |
| 2603 | incpos(cursplus); |
| 2604 | check_selection(curs, cursplus); |
| 2605 | } |
| 2606 | } |
| 2607 | } |
| 2608 | |
| 2609 | #if 0 |
| 2610 | /* |
| 2611 | * Compare two lines to determine whether they are sufficiently |
| 2612 | * alike to scroll-optimise one to the other. Return the degree of |
| 2613 | * similarity. |
| 2614 | */ |
| 2615 | static int linecmp(unsigned long *a, unsigned long *b) |
| 2616 | { |
| 2617 | int i, n; |
| 2618 | |
| 2619 | for (i = n = 0; i < cols; i++) |
| 2620 | n += (*a++ == *b++); |
| 2621 | return n; |
| 2622 | } |
| 2623 | #endif |
| 2624 | |
| 2625 | /* |
| 2626 | * Given a context, update the window. Out of paranoia, we don't |
| 2627 | * allow WM_PAINT responses to do scrolling optimisations. |
| 2628 | */ |
| 2629 | static void do_paint(Context ctx, int may_optimise) |
| 2630 | { |
| 2631 | int i, j, our_curs_y; |
| 2632 | unsigned long rv, cursor; |
| 2633 | pos scrpos; |
| 2634 | char ch[1024]; |
| 2635 | long cursor_background = ERASE_CHAR; |
| 2636 | unsigned long ticks; |
| 2637 | |
| 2638 | /* |
| 2639 | * Check the visual bell state. |
| 2640 | */ |
| 2641 | if (in_vbell) { |
| 2642 | ticks = GetTickCount(); |
| 2643 | if (ticks - vbell_startpoint >= VBELL_TIMEOUT) |
| 2644 | in_vbell = FALSE; |
| 2645 | } |
| 2646 | |
| 2647 | rv = (!rvideo ^ !in_vbell ? ATTR_REVERSE : 0); |
| 2648 | |
| 2649 | /* Depends on: |
| 2650 | * screen array, disptop, scrtop, |
| 2651 | * selection, rv, |
| 2652 | * cfg.blinkpc, blink_is_real, tblinker, |
| 2653 | * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext |
| 2654 | */ |
| 2655 | |
| 2656 | /* Has the cursor position or type changed ? */ |
| 2657 | if (cursor_on) { |
| 2658 | if (has_focus) { |
| 2659 | if (blinker || !cfg.blink_cur) |
| 2660 | cursor = TATTR_ACTCURS; |
| 2661 | else |
| 2662 | cursor = 0; |
| 2663 | } else |
| 2664 | cursor = TATTR_PASCURS; |
| 2665 | if (wrapnext) |
| 2666 | cursor |= TATTR_RIGHTCURS; |
| 2667 | } else |
| 2668 | cursor = 0; |
| 2669 | our_curs_y = curs.y - disptop; |
| 2670 | |
| 2671 | if (dispcurs && (curstype != cursor || |
| 2672 | dispcurs != |
| 2673 | disptext + our_curs_y * (cols + 1) + curs.x)) { |
| 2674 | if (dispcurs > disptext && |
| 2675 | (*dispcurs & (CHAR_MASK | CSET_MASK)) == UCSWIDE) |
| 2676 | dispcurs[-1] |= ATTR_INVALID; |
| 2677 | if ( (dispcurs[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE) |
| 2678 | dispcurs[1] |= ATTR_INVALID; |
| 2679 | *dispcurs |= ATTR_INVALID; |
| 2680 | curstype = 0; |
| 2681 | } |
| 2682 | dispcurs = NULL; |
| 2683 | |
| 2684 | /* The normal screen data */ |
| 2685 | for (i = 0; i < rows; i++) { |
| 2686 | unsigned long *ldata; |
| 2687 | int lattr; |
| 2688 | int idx, dirty_line, dirty_run, selected; |
| 2689 | unsigned long attr = 0; |
| 2690 | int updated_line = 0; |
| 2691 | int start = 0; |
| 2692 | int ccount = 0; |
| 2693 | int last_run_dirty = 0; |
| 2694 | |
| 2695 | scrpos.y = i + disptop; |
| 2696 | ldata = lineptr(scrpos.y); |
| 2697 | lattr = (ldata[cols] & LATTR_MODE); |
| 2698 | |
| 2699 | idx = i * (cols + 1); |
| 2700 | dirty_run = dirty_line = (ldata[cols] != disptext[idx + cols]); |
| 2701 | disptext[idx + cols] = ldata[cols]; |
| 2702 | |
| 2703 | for (j = 0; j < cols; j++, idx++) { |
| 2704 | unsigned long tattr, tchar; |
| 2705 | unsigned long *d = ldata + j; |
| 2706 | int break_run; |
| 2707 | scrpos.x = j; |
| 2708 | |
| 2709 | tchar = (*d & (CHAR_MASK | CSET_MASK)); |
| 2710 | tattr = (*d & (ATTR_MASK ^ CSET_MASK)); |
| 2711 | switch (tchar & CSET_MASK) { |
| 2712 | case ATTR_ASCII: |
| 2713 | tchar = unitab_line[tchar & 0xFF]; |
| 2714 | break; |
| 2715 | case ATTR_LINEDRW: |
| 2716 | tchar = unitab_xterm[tchar & 0xFF]; |
| 2717 | break; |
| 2718 | case ATTR_SCOACS: |
| 2719 | tchar = unitab_scoacs[tchar&0xFF]; |
| 2720 | break; |
| 2721 | } |
| 2722 | tattr |= (tchar & CSET_MASK); |
| 2723 | tchar &= CHAR_MASK; |
| 2724 | if ((d[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE) |
| 2725 | tattr |= ATTR_WIDE; |
| 2726 | |
| 2727 | /* Video reversing things */ |
| 2728 | if (seltype == LEXICOGRAPHIC) |
| 2729 | selected = posle(selstart, scrpos) && poslt(scrpos, selend); |
| 2730 | else |
| 2731 | selected = posPle(selstart, scrpos) && posPlt(scrpos, selend); |
| 2732 | tattr = (tattr ^ rv |
| 2733 | ^ (selected ? ATTR_REVERSE : 0)); |
| 2734 | |
| 2735 | /* 'Real' blinking ? */ |
| 2736 | if (blink_is_real && (tattr & ATTR_BLINK)) { |
| 2737 | if (has_focus && tblinker) { |
| 2738 | tchar = ' '; |
| 2739 | tattr &= ~CSET_MASK; |
| 2740 | tattr |= ATTR_ACP; |
| 2741 | } |
| 2742 | tattr &= ~ATTR_BLINK; |
| 2743 | } |
| 2744 | |
| 2745 | /* |
| 2746 | * Check the font we'll _probably_ be using to see if |
| 2747 | * the character is wide when we don't want it to be. |
| 2748 | */ |
| 2749 | if ((tchar | tattr) != (disptext[idx]& ~ATTR_NARROW)) { |
| 2750 | if ((tattr & ATTR_WIDE) == 0 && |
| 2751 | CharWidth(ctx, (tchar | tattr) & 0xFFFF) == 2) |
| 2752 | tattr |= ATTR_NARROW; |
| 2753 | } else if (disptext[idx]&ATTR_NARROW) |
| 2754 | tattr |= ATTR_NARROW; |
| 2755 | |
| 2756 | /* Cursor here ? Save the 'background' */ |
| 2757 | if (i == our_curs_y && j == curs.x) { |
| 2758 | cursor_background = tattr | tchar; |
| 2759 | dispcurs = disptext + idx; |
| 2760 | } |
| 2761 | |
| 2762 | if ((disptext[idx] ^ tattr) & ATTR_WIDE) |
| 2763 | dirty_line = TRUE; |
| 2764 | |
| 2765 | break_run = (tattr != attr || j - start >= sizeof(ch)); |
| 2766 | |
| 2767 | /* Special hack for VT100 Linedraw glyphs */ |
| 2768 | if ((attr & CSET_MASK) == 0x2300 && tchar >= 0xBA |
| 2769 | && tchar <= 0xBD) break_run = TRUE; |
| 2770 | |
| 2771 | if (!dbcs_screenfont && !dirty_line) { |
| 2772 | if ((tchar | tattr) == disptext[idx]) |
| 2773 | break_run = TRUE; |
| 2774 | else if (!dirty_run && ccount == 1) |
| 2775 | break_run = TRUE; |
| 2776 | } |
| 2777 | |
| 2778 | if (break_run) { |
| 2779 | if ((dirty_run || last_run_dirty) && ccount > 0) { |
| 2780 | do_text(ctx, start, i, ch, ccount, attr, lattr); |
| 2781 | updated_line = 1; |
| 2782 | } |
| 2783 | start = j; |
| 2784 | ccount = 0; |
| 2785 | attr = tattr; |
| 2786 | if (dbcs_screenfont) |
| 2787 | last_run_dirty = dirty_run; |
| 2788 | dirty_run = dirty_line; |
| 2789 | } |
| 2790 | |
| 2791 | if ((tchar | tattr) != disptext[idx]) |
| 2792 | dirty_run = TRUE; |
| 2793 | ch[ccount++] = (char) tchar; |
| 2794 | disptext[idx] = tchar | tattr; |
| 2795 | |
| 2796 | /* If it's a wide char step along to the next one. */ |
| 2797 | if (tattr & ATTR_WIDE) { |
| 2798 | if (++j < cols) { |
| 2799 | idx++; |
| 2800 | d++; |
| 2801 | /* Cursor is here ? Ouch! */ |
| 2802 | if (i == our_curs_y && j == curs.x) { |
| 2803 | cursor_background = *d; |
| 2804 | dispcurs = disptext + idx; |
| 2805 | } |
| 2806 | if (disptext[idx] != *d) |
| 2807 | dirty_run = TRUE; |
| 2808 | disptext[idx] = *d; |
| 2809 | } |
| 2810 | } |
| 2811 | } |
| 2812 | if (dirty_run && ccount > 0) { |
| 2813 | do_text(ctx, start, i, ch, ccount, attr, lattr); |
| 2814 | updated_line = 1; |
| 2815 | } |
| 2816 | |
| 2817 | /* Cursor on this line ? (and changed) */ |
| 2818 | if (i == our_curs_y && (curstype != cursor || updated_line)) { |
| 2819 | ch[0] = (char) (cursor_background & CHAR_MASK); |
| 2820 | attr = (cursor_background & ATTR_MASK) | cursor; |
| 2821 | do_cursor(ctx, curs.x, i, ch, 1, attr, lattr); |
| 2822 | curstype = cursor; |
| 2823 | } |
| 2824 | } |
| 2825 | } |
| 2826 | |
| 2827 | /* |
| 2828 | * Flick the switch that says if blinking things should be shown or hidden. |
| 2829 | */ |
| 2830 | |
| 2831 | void term_blink(int flg) |
| 2832 | { |
| 2833 | static long last_blink = 0; |
| 2834 | static long last_tblink = 0; |
| 2835 | long now, blink_diff; |
| 2836 | |
| 2837 | now = GetTickCount(); |
| 2838 | blink_diff = now - last_tblink; |
| 2839 | |
| 2840 | /* Make sure the text blinks no more than 2Hz */ |
| 2841 | if (blink_diff < 0 || blink_diff > 450) { |
| 2842 | last_tblink = now; |
| 2843 | tblinker = !tblinker; |
| 2844 | } |
| 2845 | |
| 2846 | if (flg) { |
| 2847 | blinker = 1; |
| 2848 | last_blink = now; |
| 2849 | return; |
| 2850 | } |
| 2851 | |
| 2852 | blink_diff = now - last_blink; |
| 2853 | |
| 2854 | /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */ |
| 2855 | if (blink_diff >= 0 && blink_diff < (long) GetCaretBlinkTime()) |
| 2856 | return; |
| 2857 | |
| 2858 | last_blink = now; |
| 2859 | blinker = !blinker; |
| 2860 | } |
| 2861 | |
| 2862 | /* |
| 2863 | * Invalidate the whole screen so it will be repainted in full. |
| 2864 | */ |
| 2865 | void term_invalidate(void) |
| 2866 | { |
| 2867 | int i; |
| 2868 | |
| 2869 | for (i = 0; i < rows * (cols + 1); i++) |
| 2870 | disptext[i] = ATTR_INVALID; |
| 2871 | } |
| 2872 | |
| 2873 | /* |
| 2874 | * Paint the window in response to a WM_PAINT message. |
| 2875 | */ |
| 2876 | void term_paint(Context ctx, int left, int top, int right, int bottom) |
| 2877 | { |
| 2878 | int i, j; |
| 2879 | if (left < 0) left = 0; |
| 2880 | if (top < 0) top = 0; |
| 2881 | if (right >= cols) right = cols-1; |
| 2882 | if (bottom >= rows) bottom = rows-1; |
| 2883 | |
| 2884 | for (i = top; i <= bottom && i < rows; i++) { |
| 2885 | if ((disptext[i * (cols + 1) + cols] & LATTR_MODE) == LATTR_NORM) |
| 2886 | for (j = left; j <= right && j < cols; j++) |
| 2887 | disptext[i * (cols + 1) + j] = ATTR_INVALID; |
| 2888 | else |
| 2889 | for (j = left / 2; j <= right / 2 + 1 && j < cols; j++) |
| 2890 | disptext[i * (cols + 1) + j] = ATTR_INVALID; |
| 2891 | } |
| 2892 | |
| 2893 | /* This should happen soon enough, also for some reason it sometimes |
| 2894 | * fails to actually do anything when re-sizing ... painting the wrong |
| 2895 | * window perhaps ? |
| 2896 | */ |
| 2897 | if (alt_pressed) |
| 2898 | do_paint (ctx, FALSE); |
| 2899 | } |
| 2900 | |
| 2901 | /* |
| 2902 | * Attempt to scroll the scrollback. The second parameter gives the |
| 2903 | * position we want to scroll to; the first is +1 to denote that |
| 2904 | * this position is relative to the beginning of the scrollback, -1 |
| 2905 | * to denote it is relative to the end, and 0 to denote that it is |
| 2906 | * relative to the current position. |
| 2907 | */ |
| 2908 | void term_scroll(int rel, int where) |
| 2909 | { |
| 2910 | int sbtop = -count234(scrollback); |
| 2911 | |
| 2912 | disptop = (rel < 0 ? 0 : rel > 0 ? sbtop : disptop) + where; |
| 2913 | if (disptop < sbtop) |
| 2914 | disptop = sbtop; |
| 2915 | if (disptop > 0) |
| 2916 | disptop = 0; |
| 2917 | update_sbar(); |
| 2918 | term_update(); |
| 2919 | } |
| 2920 | |
| 2921 | static void clipme(pos top, pos bottom, int rect) |
| 2922 | { |
| 2923 | wchar_t *workbuf; |
| 2924 | wchar_t *wbptr; /* where next char goes within workbuf */ |
| 2925 | int old_top_x; |
| 2926 | int wblen = 0; /* workbuf len */ |
| 2927 | int buflen; /* amount of memory allocated to workbuf */ |
| 2928 | |
| 2929 | buflen = 5120; /* Default size */ |
| 2930 | workbuf = smalloc(buflen * sizeof(wchar_t)); |
| 2931 | wbptr = workbuf; /* start filling here */ |
| 2932 | old_top_x = top.x; /* needed for rect==1 */ |
| 2933 | |
| 2934 | while (poslt(top, bottom)) { |
| 2935 | int nl = FALSE; |
| 2936 | unsigned long *ldata = lineptr(top.y); |
| 2937 | pos nlpos; |
| 2938 | |
| 2939 | /* |
| 2940 | * nlpos will point at the maximum position on this line we |
| 2941 | * should copy up to. So we start it at the end of the |
| 2942 | * line... |
| 2943 | */ |
| 2944 | nlpos.y = top.y; |
| 2945 | nlpos.x = cols; |
| 2946 | |
| 2947 | /* |
| 2948 | * ... move it backwards if there's unused space at the end |
| 2949 | * of the line (and also set `nl' if this is the case, |
| 2950 | * because in normal selection mode this means we need a |
| 2951 | * newline at the end)... |
| 2952 | */ |
| 2953 | if (!(ldata[cols] & LATTR_WRAPPED)) { |
| 2954 | while (((ldata[nlpos.x - 1] & 0xFF) == 0x20 || |
| 2955 | (DIRECT_CHAR(ldata[nlpos.x - 1]) && |
| 2956 | (ldata[nlpos.x - 1] & CHAR_MASK) == 0x20)) |
| 2957 | && poslt(top, nlpos)) |
| 2958 | decpos(nlpos); |
| 2959 | if (poslt(nlpos, bottom)) |
| 2960 | nl = TRUE; |
| 2961 | } |
| 2962 | |
| 2963 | /* |
| 2964 | * ... and then clip it to the terminal x coordinate if |
| 2965 | * we're doing rectangular selection. (In this case we |
| 2966 | * still did the above, so that copying e.g. the right-hand |
| 2967 | * column from a table doesn't fill with spaces on the |
| 2968 | * right.) |
| 2969 | */ |
| 2970 | if (rect) { |
| 2971 | if (nlpos.x > bottom.x) |
| 2972 | nlpos.x = bottom.x; |
| 2973 | nl = (top.y < bottom.y); |
| 2974 | } |
| 2975 | |
| 2976 | while (poslt(top, bottom) && poslt(top, nlpos)) { |
| 2977 | #if 0 |
| 2978 | char cbuf[16], *p; |
| 2979 | sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF)); |
| 2980 | #else |
| 2981 | wchar_t cbuf[16], *p; |
| 2982 | int uc = (ldata[top.x] & 0xFFFF); |
| 2983 | int set, c; |
| 2984 | |
| 2985 | if (uc == UCSWIDE) { |
| 2986 | top.x++; |
| 2987 | continue; |
| 2988 | } |
| 2989 | |
| 2990 | switch (uc & CSET_MASK) { |
| 2991 | case ATTR_LINEDRW: |
| 2992 | if (!cfg.rawcnp) { |
| 2993 | uc = unitab_xterm[uc & 0xFF]; |
| 2994 | break; |
| 2995 | } |
| 2996 | case ATTR_ASCII: |
| 2997 | uc = unitab_line[uc & 0xFF]; |
| 2998 | break; |
| 2999 | case ATTR_SCOACS: |
| 3000 | uc = unitab_scoacs[uc&0xFF]; |
| 3001 | break; |
| 3002 | } |
| 3003 | switch (uc & CSET_MASK) { |
| 3004 | case ATTR_ACP: |
| 3005 | uc = unitab_font[uc & 0xFF]; |
| 3006 | break; |
| 3007 | case ATTR_OEMCP: |
| 3008 | uc = unitab_oemcp[uc & 0xFF]; |
| 3009 | break; |
| 3010 | } |
| 3011 | |
| 3012 | set = (uc & CSET_MASK); |
| 3013 | c = (uc & CHAR_MASK); |
| 3014 | cbuf[0] = uc; |
| 3015 | cbuf[1] = 0; |
| 3016 | |
| 3017 | if (DIRECT_FONT(uc)) { |
| 3018 | if (c >= ' ' && c != 0x7F) { |
| 3019 | unsigned char buf[4]; |
| 3020 | WCHAR wbuf[4]; |
| 3021 | int rv; |
| 3022 | if (IsDBCSLeadByteEx(font_codepage, (BYTE) c)) { |
| 3023 | buf[0] = c; |
| 3024 | buf[1] = (unsigned char) ldata[top.x + 1]; |
| 3025 | rv = MultiByteToWideChar(font_codepage, |
| 3026 | 0, buf, 2, wbuf, 4); |
| 3027 | top.x++; |
| 3028 | } else { |
| 3029 | buf[0] = c; |
| 3030 | rv = MultiByteToWideChar(font_codepage, |
| 3031 | 0, buf, 1, wbuf, 4); |
| 3032 | } |
| 3033 | |
| 3034 | if (rv > 0) { |
| 3035 | memcpy(cbuf, wbuf, rv * sizeof(wchar_t)); |
| 3036 | cbuf[rv] = 0; |
| 3037 | } |
| 3038 | } |
| 3039 | } |
| 3040 | #endif |
| 3041 | |
| 3042 | for (p = cbuf; *p; p++) { |
| 3043 | /* Enough overhead for trailing NL and nul */ |
| 3044 | if (wblen >= buflen - 16) { |
| 3045 | workbuf = |
| 3046 | srealloc(workbuf, |
| 3047 | sizeof(wchar_t) * (buflen += 100)); |
| 3048 | wbptr = workbuf + wblen; |
| 3049 | } |
| 3050 | wblen++; |
| 3051 | *wbptr++ = *p; |
| 3052 | } |
| 3053 | top.x++; |
| 3054 | } |
| 3055 | if (nl) { |
| 3056 | int i; |
| 3057 | for (i = 0; i < sel_nl_sz; i++) { |
| 3058 | wblen++; |
| 3059 | *wbptr++ = sel_nl[i]; |
| 3060 | } |
| 3061 | } |
| 3062 | top.y++; |
| 3063 | top.x = rect ? old_top_x : 0; |
| 3064 | } |
| 3065 | wblen++; |
| 3066 | *wbptr++ = 0; |
| 3067 | write_clip(workbuf, wblen, FALSE); /* transfer to clipboard */ |
| 3068 | if (buflen > 0) /* indicates we allocated this buffer */ |
| 3069 | sfree(workbuf); |
| 3070 | } |
| 3071 | |
| 3072 | void term_copyall(void) |
| 3073 | { |
| 3074 | pos top; |
| 3075 | top.y = -count234(scrollback); |
| 3076 | top.x = 0; |
| 3077 | clipme(top, curs, 0); |
| 3078 | } |
| 3079 | |
| 3080 | /* |
| 3081 | * The wordness array is mainly for deciding the disposition of the US-ASCII |
| 3082 | * characters. |
| 3083 | */ |
| 3084 | static int wordtype(int uc) |
| 3085 | { |
| 3086 | static struct { |
| 3087 | int start, end, ctype; |
| 3088 | } *wptr, ucs_words[] = { |
| 3089 | { |
| 3090 | 128, 160, 0}, { |
| 3091 | 161, 191, 1}, { |
| 3092 | 215, 215, 1}, { |
| 3093 | 247, 247, 1}, { |
| 3094 | 0x037e, 0x037e, 1}, /* Greek question mark */ |
| 3095 | { |
| 3096 | 0x0387, 0x0387, 1}, /* Greek ano teleia */ |
| 3097 | { |
| 3098 | 0x055a, 0x055f, 1}, /* Armenian punctuation */ |
| 3099 | { |
| 3100 | 0x0589, 0x0589, 1}, /* Armenian full stop */ |
| 3101 | { |
| 3102 | 0x0700, 0x070d, 1}, /* Syriac punctuation */ |
| 3103 | { |
| 3104 | 0x104a, 0x104f, 1}, /* Myanmar punctuation */ |
| 3105 | { |
| 3106 | 0x10fb, 0x10fb, 1}, /* Georgian punctuation */ |
| 3107 | { |
| 3108 | 0x1361, 0x1368, 1}, /* Ethiopic punctuation */ |
| 3109 | { |
| 3110 | 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */ |
| 3111 | { |
| 3112 | 0x17d4, 0x17dc, 1}, /* Khmer punctuation */ |
| 3113 | { |
| 3114 | 0x1800, 0x180a, 1}, /* Mongolian punctuation */ |
| 3115 | { |
| 3116 | 0x2000, 0x200a, 0}, /* Various spaces */ |
| 3117 | { |
| 3118 | 0x2070, 0x207f, 2}, /* superscript */ |
| 3119 | { |
| 3120 | 0x2080, 0x208f, 2}, /* subscript */ |
| 3121 | { |
| 3122 | 0x200b, 0x27ff, 1}, /* punctuation and symbols */ |
| 3123 | { |
| 3124 | 0x3000, 0x3000, 0}, /* ideographic space */ |
| 3125 | { |
| 3126 | 0x3001, 0x3020, 1}, /* ideographic punctuation */ |
| 3127 | { |
| 3128 | 0x303f, 0x309f, 3}, /* Hiragana */ |
| 3129 | { |
| 3130 | 0x30a0, 0x30ff, 3}, /* Katakana */ |
| 3131 | { |
| 3132 | 0x3300, 0x9fff, 3}, /* CJK Ideographs */ |
| 3133 | { |
| 3134 | 0xac00, 0xd7a3, 3}, /* Hangul Syllables */ |
| 3135 | { |
| 3136 | 0xf900, 0xfaff, 3}, /* CJK Ideographs */ |
| 3137 | { |
| 3138 | 0xfe30, 0xfe6b, 1}, /* punctuation forms */ |
| 3139 | { |
| 3140 | 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */ |
| 3141 | { |
| 3142 | 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */ |
| 3143 | { |
| 3144 | 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */ |
| 3145 | { |
| 3146 | 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */ |
| 3147 | { |
| 3148 | 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */ |
| 3149 | { |
| 3150 | 0, 0, 0} |
| 3151 | }; |
| 3152 | |
| 3153 | uc &= (CSET_MASK | CHAR_MASK); |
| 3154 | |
| 3155 | switch (uc & CSET_MASK) { |
| 3156 | case ATTR_LINEDRW: |
| 3157 | uc = unitab_xterm[uc & 0xFF]; |
| 3158 | break; |
| 3159 | case ATTR_ASCII: |
| 3160 | uc = unitab_line[uc & 0xFF]; |
| 3161 | break; |
| 3162 | case ATTR_SCOACS: |
| 3163 | uc = unitab_scoacs[uc&0xFF]; |
| 3164 | break; |
| 3165 | } |
| 3166 | switch (uc & CSET_MASK) { |
| 3167 | case ATTR_ACP: |
| 3168 | uc = unitab_font[uc & 0xFF]; |
| 3169 | break; |
| 3170 | case ATTR_OEMCP: |
| 3171 | uc = unitab_oemcp[uc & 0xFF]; |
| 3172 | break; |
| 3173 | } |
| 3174 | |
| 3175 | /* For DBCS font's I can't do anything usefull. Even this will sometimes |
| 3176 | * fail as there's such a thing as a double width space. :-( |
| 3177 | */ |
| 3178 | if (dbcs_screenfont && font_codepage == line_codepage) |
| 3179 | return (uc != ' '); |
| 3180 | |
| 3181 | if (uc < 0x80) |
| 3182 | return wordness[uc]; |
| 3183 | |
| 3184 | for (wptr = ucs_words; wptr->start; wptr++) { |
| 3185 | if (uc >= wptr->start && uc <= wptr->end) |
| 3186 | return wptr->ctype; |
| 3187 | } |
| 3188 | |
| 3189 | return 2; |
| 3190 | } |
| 3191 | |
| 3192 | /* |
| 3193 | * Spread the selection outwards according to the selection mode. |
| 3194 | */ |
| 3195 | static pos sel_spread_half(pos p, int dir) |
| 3196 | { |
| 3197 | unsigned long *ldata; |
| 3198 | short wvalue; |
| 3199 | int topy = -count234(scrollback); |
| 3200 | |
| 3201 | ldata = lineptr(p.y); |
| 3202 | |
| 3203 | switch (selmode) { |
| 3204 | case SM_CHAR: |
| 3205 | /* |
| 3206 | * In this mode, every character is a separate unit, except |
| 3207 | * for runs of spaces at the end of a non-wrapping line. |
| 3208 | */ |
| 3209 | if (!(ldata[cols] & LATTR_WRAPPED)) { |
| 3210 | unsigned long *q = ldata + cols; |
| 3211 | while (q > ldata && (q[-1] & CHAR_MASK) == 0x20) |
| 3212 | q--; |
| 3213 | if (q == ldata + cols) |
| 3214 | q--; |
| 3215 | if (p.x >= q - ldata) |
| 3216 | p.x = (dir == -1 ? q - ldata : cols - 1); |
| 3217 | } |
| 3218 | break; |
| 3219 | case SM_WORD: |
| 3220 | /* |
| 3221 | * In this mode, the units are maximal runs of characters |
| 3222 | * whose `wordness' has the same value. |
| 3223 | */ |
| 3224 | wvalue = wordtype(ldata[p.x]); |
| 3225 | if (dir == +1) { |
| 3226 | while (1) { |
| 3227 | if (p.x < cols-1) { |
| 3228 | if (wordtype(ldata[p.x + 1]) == wvalue) |
| 3229 | p.x++; |
| 3230 | else |
| 3231 | break; |
| 3232 | } else { |
| 3233 | if (ldata[cols] & LATTR_WRAPPED) { |
| 3234 | unsigned long *ldata2; |
| 3235 | ldata2 = lineptr(p.y+1); |
| 3236 | if (wordtype(ldata2[0]) == wvalue) { |
| 3237 | p.x = 0; |
| 3238 | p.y++; |
| 3239 | ldata = ldata2; |
| 3240 | } else |
| 3241 | break; |
| 3242 | } else |
| 3243 | break; |
| 3244 | } |
| 3245 | } |
| 3246 | } else { |
| 3247 | while (1) { |
| 3248 | if (p.x > 0) { |
| 3249 | if (wordtype(ldata[p.x - 1]) == wvalue) |
| 3250 | p.x--; |
| 3251 | else |
| 3252 | break; |
| 3253 | } else { |
| 3254 | unsigned long *ldata2; |
| 3255 | if (p.y <= topy) |
| 3256 | break; |
| 3257 | ldata2 = lineptr(p.y-1); |
| 3258 | if ((ldata2[cols] & LATTR_WRAPPED) && |
| 3259 | wordtype(ldata2[cols-1]) == wvalue) { |
| 3260 | p.x = cols-1; |
| 3261 | p.y--; |
| 3262 | ldata = ldata2; |
| 3263 | } else |
| 3264 | break; |
| 3265 | } |
| 3266 | } |
| 3267 | } |
| 3268 | break; |
| 3269 | case SM_LINE: |
| 3270 | /* |
| 3271 | * In this mode, every line is a unit. |
| 3272 | */ |
| 3273 | p.x = (dir == -1 ? 0 : cols - 1); |
| 3274 | break; |
| 3275 | } |
| 3276 | return p; |
| 3277 | } |
| 3278 | |
| 3279 | static void sel_spread(void) |
| 3280 | { |
| 3281 | if (seltype == LEXICOGRAPHIC) { |
| 3282 | selstart = sel_spread_half(selstart, -1); |
| 3283 | decpos(selend); |
| 3284 | selend = sel_spread_half(selend, +1); |
| 3285 | incpos(selend); |
| 3286 | } |
| 3287 | } |
| 3288 | |
| 3289 | void term_do_paste(void) |
| 3290 | { |
| 3291 | wchar_t *data; |
| 3292 | int len; |
| 3293 | |
| 3294 | get_clip(&data, &len); |
| 3295 | if (data) { |
| 3296 | wchar_t *p, *q; |
| 3297 | |
| 3298 | if (paste_buffer) |
| 3299 | sfree(paste_buffer); |
| 3300 | paste_pos = paste_hold = paste_len = 0; |
| 3301 | paste_buffer = smalloc(len * sizeof(wchar_t)); |
| 3302 | |
| 3303 | p = q = data; |
| 3304 | while (p < data + len) { |
| 3305 | while (p < data + len && |
| 3306 | !(p <= data + len - sel_nl_sz && |
| 3307 | !memcmp(p, sel_nl, sizeof(sel_nl)))) |
| 3308 | p++; |
| 3309 | |
| 3310 | { |
| 3311 | int i; |
| 3312 | for (i = 0; i < p - q; i++) { |
| 3313 | paste_buffer[paste_len++] = q[i]; |
| 3314 | } |
| 3315 | } |
| 3316 | |
| 3317 | if (p <= data + len - sel_nl_sz && |
| 3318 | !memcmp(p, sel_nl, sizeof(sel_nl))) { |
| 3319 | paste_buffer[paste_len++] = '\r'; |
| 3320 | p += sel_nl_sz; |
| 3321 | } |
| 3322 | q = p; |
| 3323 | } |
| 3324 | |
| 3325 | /* Assume a small paste will be OK in one go. */ |
| 3326 | if (paste_len < 256) { |
| 3327 | luni_send(paste_buffer, paste_len, 0); |
| 3328 | if (paste_buffer) |
| 3329 | sfree(paste_buffer); |
| 3330 | paste_buffer = 0; |
| 3331 | paste_pos = paste_hold = paste_len = 0; |
| 3332 | } |
| 3333 | } |
| 3334 | get_clip(NULL, NULL); |
| 3335 | } |
| 3336 | |
| 3337 | void term_mouse(Mouse_Button b, Mouse_Action a, int x, int y, |
| 3338 | int shift, int ctrl, int alt) |
| 3339 | { |
| 3340 | pos selpoint; |
| 3341 | unsigned long *ldata; |
| 3342 | int raw_mouse = xterm_mouse && !(cfg.mouse_override && shift); |
| 3343 | int default_seltype; |
| 3344 | |
| 3345 | if (y < 0) { |
| 3346 | y = 0; |
| 3347 | if (a == MA_DRAG && !raw_mouse) |
| 3348 | term_scroll(0, -1); |
| 3349 | } |
| 3350 | if (y >= rows) { |
| 3351 | y = rows - 1; |
| 3352 | if (a == MA_DRAG && !raw_mouse) |
| 3353 | term_scroll(0, +1); |
| 3354 | } |
| 3355 | if (x < 0) { |
| 3356 | if (y > 0) { |
| 3357 | x = cols - 1; |
| 3358 | y--; |
| 3359 | } else |
| 3360 | x = 0; |
| 3361 | } |
| 3362 | if (x >= cols) |
| 3363 | x = cols - 1; |
| 3364 | |
| 3365 | selpoint.y = y + disptop; |
| 3366 | selpoint.x = x; |
| 3367 | ldata = lineptr(selpoint.y); |
| 3368 | if ((ldata[cols] & LATTR_MODE) != LATTR_NORM) |
| 3369 | selpoint.x /= 2; |
| 3370 | |
| 3371 | if (raw_mouse) { |
| 3372 | int encstate = 0, r, c; |
| 3373 | char abuf[16]; |
| 3374 | static int is_down = 0; |
| 3375 | |
| 3376 | switch (b) { |
| 3377 | case MBT_LEFT: |
| 3378 | encstate = 0x20; /* left button down */ |
| 3379 | break; |
| 3380 | case MBT_MIDDLE: |
| 3381 | encstate = 0x21; |
| 3382 | break; |
| 3383 | case MBT_RIGHT: |
| 3384 | encstate = 0x22; |
| 3385 | break; |
| 3386 | case MBT_WHEEL_UP: |
| 3387 | encstate = 0x60; |
| 3388 | break; |
| 3389 | case MBT_WHEEL_DOWN: |
| 3390 | encstate = 0x61; |
| 3391 | break; |
| 3392 | default: break; /* placate gcc warning about enum use */ |
| 3393 | } |
| 3394 | switch (a) { |
| 3395 | case MA_DRAG: |
| 3396 | if (xterm_mouse == 1) |
| 3397 | return; |
| 3398 | encstate += 0x20; |
| 3399 | break; |
| 3400 | case MA_RELEASE: |
| 3401 | encstate = 0x23; |
| 3402 | is_down = 0; |
| 3403 | break; |
| 3404 | case MA_CLICK: |
| 3405 | if (is_down == b) |
| 3406 | return; |
| 3407 | is_down = b; |
| 3408 | break; |
| 3409 | default: break; /* placate gcc warning about enum use */ |
| 3410 | } |
| 3411 | if (shift) |
| 3412 | encstate += 0x04; |
| 3413 | if (ctrl) |
| 3414 | encstate += 0x10; |
| 3415 | r = y + 33; |
| 3416 | c = x + 33; |
| 3417 | |
| 3418 | sprintf(abuf, "\033[M%c%c%c", encstate, c, r); |
| 3419 | ldisc_send(abuf, 6, 0); |
| 3420 | return; |
| 3421 | } |
| 3422 | |
| 3423 | b = translate_button(b); |
| 3424 | |
| 3425 | /* |
| 3426 | * Set the selection type (rectangular or normal) at the start |
| 3427 | * of a selection attempt, from the state of Alt. |
| 3428 | */ |
| 3429 | if (!alt ^ !cfg.rect_select) |
| 3430 | default_seltype = RECTANGULAR; |
| 3431 | else |
| 3432 | default_seltype = LEXICOGRAPHIC; |
| 3433 | |
| 3434 | if (selstate == NO_SELECTION) { |
| 3435 | seltype = default_seltype; |
| 3436 | } |
| 3437 | |
| 3438 | if (b == MBT_SELECT && a == MA_CLICK) { |
| 3439 | deselect(); |
| 3440 | selstate = ABOUT_TO; |
| 3441 | seltype = default_seltype; |
| 3442 | selanchor = selpoint; |
| 3443 | selmode = SM_CHAR; |
| 3444 | } else if (b == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) { |
| 3445 | deselect(); |
| 3446 | selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); |
| 3447 | selstate = DRAGGING; |
| 3448 | selstart = selanchor = selpoint; |
| 3449 | selend = selstart; |
| 3450 | incpos(selend); |
| 3451 | sel_spread(); |
| 3452 | } else if ((b == MBT_SELECT && a == MA_DRAG) || |
| 3453 | (b == MBT_EXTEND && a != MA_RELEASE)) { |
| 3454 | if (selstate == ABOUT_TO && poseq(selanchor, selpoint)) |
| 3455 | return; |
| 3456 | if (b == MBT_EXTEND && a != MA_DRAG && selstate == SELECTED) { |
| 3457 | if (seltype == LEXICOGRAPHIC) { |
| 3458 | /* |
| 3459 | * For normal selection, we extend by moving |
| 3460 | * whichever end of the current selection is closer |
| 3461 | * to the mouse. |
| 3462 | */ |
| 3463 | if (posdiff(selpoint, selstart) < |
| 3464 | posdiff(selend, selstart) / 2) { |
| 3465 | selanchor = selend; |
| 3466 | decpos(selanchor); |
| 3467 | } else { |
| 3468 | selanchor = selstart; |
| 3469 | } |
| 3470 | } else { |
| 3471 | /* |
| 3472 | * For rectangular selection, we have a choice of |
| 3473 | * _four_ places to put selanchor and selpoint: the |
| 3474 | * four corners of the selection. |
| 3475 | */ |
| 3476 | if (2*selpoint.x < selstart.x + selend.x) |
| 3477 | selanchor.x = selend.x-1; |
| 3478 | else |
| 3479 | selanchor.x = selstart.x; |
| 3480 | |
| 3481 | if (2*selpoint.y < selstart.y + selend.y) |
| 3482 | selanchor.y = selend.y; |
| 3483 | else |
| 3484 | selanchor.y = selstart.y; |
| 3485 | } |
| 3486 | selstate = DRAGGING; |
| 3487 | } |
| 3488 | if (selstate != ABOUT_TO && selstate != DRAGGING) |
| 3489 | selanchor = selpoint; |
| 3490 | selstate = DRAGGING; |
| 3491 | if (seltype == LEXICOGRAPHIC) { |
| 3492 | /* |
| 3493 | * For normal selection, we set (selstart,selend) to |
| 3494 | * (selpoint,selanchor) in some order. |
| 3495 | */ |
| 3496 | if (poslt(selpoint, selanchor)) { |
| 3497 | selstart = selpoint; |
| 3498 | selend = selanchor; |
| 3499 | incpos(selend); |
| 3500 | } else { |
| 3501 | selstart = selanchor; |
| 3502 | selend = selpoint; |
| 3503 | incpos(selend); |
| 3504 | } |
| 3505 | } else { |
| 3506 | /* |
| 3507 | * For rectangular selection, we may need to |
| 3508 | * interchange x and y coordinates (if the user has |
| 3509 | * dragged in the -x and +y directions, or vice versa). |
| 3510 | */ |
| 3511 | selstart.x = min(selanchor.x, selpoint.x); |
| 3512 | selend.x = 1+max(selanchor.x, selpoint.x); |
| 3513 | selstart.y = min(selanchor.y, selpoint.y); |
| 3514 | selend.y = max(selanchor.y, selpoint.y); |
| 3515 | } |
| 3516 | sel_spread(); |
| 3517 | } else if ((b == MBT_SELECT || b == MBT_EXTEND) && a == MA_RELEASE) { |
| 3518 | if (selstate == DRAGGING) { |
| 3519 | /* |
| 3520 | * We've completed a selection. We now transfer the |
| 3521 | * data to the clipboard. |
| 3522 | */ |
| 3523 | clipme(selstart, selend, (seltype == RECTANGULAR)); |
| 3524 | selstate = SELECTED; |
| 3525 | } else |
| 3526 | selstate = NO_SELECTION; |
| 3527 | } else if (b == MBT_PASTE |
| 3528 | && (a == MA_CLICK || a == MA_2CLK || a == MA_3CLK)) { |
| 3529 | term_do_paste(); |
| 3530 | } |
| 3531 | |
| 3532 | term_update(); |
| 3533 | } |
| 3534 | |
| 3535 | void term_nopaste() |
| 3536 | { |
| 3537 | if (paste_len == 0) |
| 3538 | return; |
| 3539 | sfree(paste_buffer); |
| 3540 | paste_buffer = 0; |
| 3541 | paste_len = 0; |
| 3542 | } |
| 3543 | |
| 3544 | void term_paste() |
| 3545 | { |
| 3546 | static long last_paste = 0; |
| 3547 | long now, paste_diff; |
| 3548 | |
| 3549 | if (paste_len == 0) |
| 3550 | return; |
| 3551 | |
| 3552 | /* Don't wait forever to paste */ |
| 3553 | if (paste_hold) { |
| 3554 | now = GetTickCount(); |
| 3555 | paste_diff = now - last_paste; |
| 3556 | if (paste_diff >= 0 && paste_diff < 450) |
| 3557 | return; |
| 3558 | } |
| 3559 | paste_hold = 0; |
| 3560 | |
| 3561 | while (paste_pos < paste_len) { |
| 3562 | int n = 0; |
| 3563 | while (n + paste_pos < paste_len) { |
| 3564 | if (paste_buffer[paste_pos + n++] == '\r') |
| 3565 | break; |
| 3566 | } |
| 3567 | luni_send(paste_buffer + paste_pos, n, 0); |
| 3568 | paste_pos += n; |
| 3569 | |
| 3570 | if (paste_pos < paste_len) { |
| 3571 | paste_hold = 1; |
| 3572 | return; |
| 3573 | } |
| 3574 | } |
| 3575 | sfree(paste_buffer); |
| 3576 | paste_buffer = 0; |
| 3577 | paste_len = 0; |
| 3578 | } |
| 3579 | |
| 3580 | static void deselect(void) |
| 3581 | { |
| 3582 | selstate = NO_SELECTION; |
| 3583 | selstart.x = selstart.y = selend.x = selend.y = 0; |
| 3584 | } |
| 3585 | |
| 3586 | void term_deselect(void) |
| 3587 | { |
| 3588 | deselect(); |
| 3589 | term_update(); |
| 3590 | } |
| 3591 | |
| 3592 | int term_ldisc(int option) |
| 3593 | { |
| 3594 | if (option == LD_ECHO) |
| 3595 | return term_echoing; |
| 3596 | if (option == LD_EDIT) |
| 3597 | return term_editing; |
| 3598 | return FALSE; |
| 3599 | } |
| 3600 | |
| 3601 | /* |
| 3602 | * from_backend(), to get data from the backend for the terminal. |
| 3603 | */ |
| 3604 | int from_backend(int is_stderr, char *data, int len) |
| 3605 | { |
| 3606 | bufchain_add(&inbuf, data, len); |
| 3607 | |
| 3608 | /* |
| 3609 | * term_out() always completely empties inbuf. Therefore, |
| 3610 | * there's no reason at all to return anything other than zero |
| 3611 | * from this function, because there _can't_ be a question of |
| 3612 | * the remote side needing to wait until term_out() has cleared |
| 3613 | * a backlog. |
| 3614 | * |
| 3615 | * This is a slightly suboptimal way to deal with SSH2 - in |
| 3616 | * principle, the window mechanism would allow us to continue |
| 3617 | * to accept data on forwarded ports and X connections even |
| 3618 | * while the terminal processing was going slowly - but we |
| 3619 | * can't do the 100% right thing without moving the terminal |
| 3620 | * processing into a separate thread, and that might hurt |
| 3621 | * portability. So we manage stdout buffering the old SSH1 way: |
| 3622 | * if the terminal processing goes slowly, the whole SSH |
| 3623 | * connection stops accepting data until it's ready. |
| 3624 | * |
| 3625 | * In practice, I can't imagine this causing serious trouble. |
| 3626 | */ |
| 3627 | return 0; |
| 3628 | } |