| 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, save_wnext; /* 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 | static int printing, only_printing; /* Are we doing ANSI printing? */ |
| 119 | static int print_state; /* state of print-end-sequence scan */ |
| 120 | static bufchain printer_buf; /* buffered data for printer */ |
| 121 | static printer_job *print_job; |
| 122 | |
| 123 | static int xterm_mouse; /* send mouse messages to app */ |
| 124 | |
| 125 | static unsigned long cset_attr[2]; |
| 126 | |
| 127 | /* |
| 128 | * Saved settings on the alternate screen. |
| 129 | */ |
| 130 | static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset, alt_sco_acs, alt_utf; |
| 131 | static int alt_t, alt_b; |
| 132 | static int alt_which; |
| 133 | |
| 134 | #define ARGS_MAX 32 /* max # of esc sequence arguments */ |
| 135 | #define ARG_DEFAULT 0 /* if an arg isn't specified */ |
| 136 | #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) |
| 137 | static int esc_args[ARGS_MAX]; |
| 138 | static int esc_nargs; |
| 139 | static int esc_query; |
| 140 | #define ANSI(x,y) ((x)+((y)<<8)) |
| 141 | #define ANSI_QUE(x) ANSI(x,TRUE) |
| 142 | |
| 143 | #define OSC_STR_MAX 2048 |
| 144 | static int osc_strlen; |
| 145 | static char osc_string[OSC_STR_MAX + 1]; |
| 146 | static int osc_w; |
| 147 | |
| 148 | static char id_string[1024] = "\033[?6c"; |
| 149 | |
| 150 | static unsigned char *tabs; |
| 151 | |
| 152 | static enum { |
| 153 | TOPLEVEL, |
| 154 | SEEN_ESC, |
| 155 | SEEN_CSI, |
| 156 | SEEN_OSC, |
| 157 | SEEN_OSC_W, |
| 158 | |
| 159 | DO_CTRLS, |
| 160 | |
| 161 | SEEN_OSC_P, |
| 162 | OSC_STRING, OSC_MAYBE_ST, |
| 163 | VT52_ESC, |
| 164 | VT52_Y1, |
| 165 | VT52_Y2, |
| 166 | VT52_FG, |
| 167 | VT52_BG |
| 168 | } termstate; |
| 169 | |
| 170 | static enum { |
| 171 | NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED |
| 172 | } selstate; |
| 173 | static enum { |
| 174 | LEXICOGRAPHIC, RECTANGULAR |
| 175 | } seltype; |
| 176 | static enum { |
| 177 | SM_CHAR, SM_WORD, SM_LINE |
| 178 | } selmode; |
| 179 | static pos selstart, selend, selanchor; |
| 180 | |
| 181 | static short wordness[256] = { |
| 182 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 183 | 0, 0, 0, 0, 0, 0, 0, 0, /* 01 */ |
| 184 | 0, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 185 | 2, 2, 1, 1, 1, 1, 1, 1, /* 23 */ |
| 186 | 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 187 | 2, 2, 2, 1, 1, 1, 1, 2, /* 45 */ |
| 188 | 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 189 | 2, 2, 2, 1, 1, 1, 1, 1, /* 67 */ |
| 190 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 191 | 1, 1, 1, 1, 1, 1, 1, 1, /* 89 */ |
| 192 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 193 | 1, 1, 1, 1, 1, 1, 1, 1, /* AB */ |
| 194 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, |
| 195 | 2, 2, 2, 2, 2, 2, 2, 2, /* CD */ |
| 196 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, |
| 197 | 2, 2, 2, 2, 2, 2, 2, 2, /* EF */ |
| 198 | }; |
| 199 | |
| 200 | #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t)) |
| 201 | static wchar_t sel_nl[] = SEL_NL; |
| 202 | static wchar_t *paste_buffer = 0; |
| 203 | static int paste_len, paste_pos, paste_hold; |
| 204 | |
| 205 | /* |
| 206 | * Internal prototypes. |
| 207 | */ |
| 208 | static void do_paint(Context, int); |
| 209 | static void erase_lots(int, int, int); |
| 210 | static void swap_screen(int); |
| 211 | static void update_sbar(void); |
| 212 | static void deselect(void); |
| 213 | static void term_print_finish(void); |
| 214 | |
| 215 | /* |
| 216 | * Resize a line to make it `cols' columns wide. |
| 217 | */ |
| 218 | unsigned long *resizeline(unsigned long *line, int cols) |
| 219 | { |
| 220 | int i, oldlen; |
| 221 | unsigned long lineattrs; |
| 222 | |
| 223 | if (line[0] != (unsigned long)cols) { |
| 224 | /* |
| 225 | * This line is the wrong length, which probably means it |
| 226 | * hasn't been accessed since a resize. Resize it now. |
| 227 | */ |
| 228 | oldlen = line[0]; |
| 229 | lineattrs = line[oldlen + 1]; |
| 230 | line = srealloc(line, TSIZE * (2 + cols)); |
| 231 | line[0] = cols; |
| 232 | for (i = oldlen; i < cols; i++) |
| 233 | line[i + 1] = ERASE_CHAR; |
| 234 | line[cols + 1] = lineattrs & LATTR_MODE; |
| 235 | } |
| 236 | |
| 237 | return line; |
| 238 | } |
| 239 | |
| 240 | /* |
| 241 | * Retrieve a line of the screen or of the scrollback, according to |
| 242 | * whether the y coordinate is non-negative or negative |
| 243 | * (respectively). |
| 244 | */ |
| 245 | unsigned long *lineptr(int y, int lineno) |
| 246 | { |
| 247 | unsigned long *line, *newline; |
| 248 | tree234 *whichtree; |
| 249 | int treeindex; |
| 250 | |
| 251 | if (y >= 0) { |
| 252 | whichtree = screen; |
| 253 | treeindex = y; |
| 254 | } else { |
| 255 | whichtree = scrollback; |
| 256 | treeindex = y + count234(scrollback); |
| 257 | } |
| 258 | line = index234(whichtree, treeindex); |
| 259 | |
| 260 | /* We assume that we don't screw up and retrieve something out of range. */ |
| 261 | assert(line != NULL); |
| 262 | |
| 263 | newline = resizeline(line, cols); |
| 264 | if (newline != line) { |
| 265 | delpos234(whichtree, treeindex); |
| 266 | addpos234(whichtree, newline, treeindex); |
| 267 | line = newline; |
| 268 | } |
| 269 | |
| 270 | return line + 1; |
| 271 | } |
| 272 | |
| 273 | #define lineptr(x) lineptr(x,__LINE__) |
| 274 | /* |
| 275 | * Set up power-on settings for the terminal. |
| 276 | */ |
| 277 | static void power_on(void) |
| 278 | { |
| 279 | curs.x = curs.y = alt_x = alt_y = savecurs.x = savecurs.y = 0; |
| 280 | alt_t = marg_t = 0; |
| 281 | if (rows != -1) |
| 282 | alt_b = marg_b = rows - 1; |
| 283 | else |
| 284 | alt_b = marg_b = 0; |
| 285 | if (cols != -1) { |
| 286 | int i; |
| 287 | for (i = 0; i < cols; i++) |
| 288 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
| 289 | } |
| 290 | alt_om = dec_om = cfg.dec_om; |
| 291 | alt_wnext = wrapnext = alt_ins = insert = FALSE; |
| 292 | alt_wrap = wrap = cfg.wrap_mode; |
| 293 | alt_cset = cset = 0; |
| 294 | alt_utf = utf = 0; |
| 295 | alt_sco_acs = sco_acs = 0; |
| 296 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
| 297 | rvideo = 0; |
| 298 | in_vbell = FALSE; |
| 299 | cursor_on = 1; |
| 300 | big_cursor = 0; |
| 301 | save_attr = curr_attr = ATTR_DEFAULT; |
| 302 | term_editing = term_echoing = FALSE; |
| 303 | ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */ |
| 304 | app_cursor_keys = cfg.app_cursor; |
| 305 | app_keypad_keys = cfg.app_keypad; |
| 306 | use_bce = cfg.bce; |
| 307 | blink_is_real = cfg.blinktext; |
| 308 | erase_char = ERASE_CHAR; |
| 309 | alt_which = 0; |
| 310 | term_print_finish(); |
| 311 | { |
| 312 | int i; |
| 313 | for (i = 0; i < 256; i++) |
| 314 | wordness[i] = cfg.wordness[i]; |
| 315 | } |
| 316 | if (screen) { |
| 317 | swap_screen(1); |
| 318 | erase_lots(FALSE, TRUE, TRUE); |
| 319 | swap_screen(0); |
| 320 | erase_lots(FALSE, TRUE, TRUE); |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | /* |
| 325 | * Force a screen update. |
| 326 | */ |
| 327 | void term_update(void) |
| 328 | { |
| 329 | Context ctx; |
| 330 | ctx = get_ctx(); |
| 331 | if (ctx) { |
| 332 | int need_sbar_update = seen_disp_event; |
| 333 | if ((seen_key_event && (cfg.scroll_on_key)) || |
| 334 | (seen_disp_event && (cfg.scroll_on_disp))) { |
| 335 | disptop = 0; /* return to main screen */ |
| 336 | seen_disp_event = seen_key_event = 0; |
| 337 | need_sbar_update = TRUE; |
| 338 | } |
| 339 | if (need_sbar_update) |
| 340 | update_sbar(); |
| 341 | do_paint(ctx, TRUE); |
| 342 | sys_cursor(curs.x, curs.y - disptop); |
| 343 | free_ctx(ctx); |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | /* |
| 348 | * Same as power_on(), but an external function. |
| 349 | */ |
| 350 | void term_pwron(void) |
| 351 | { |
| 352 | power_on(); |
| 353 | fix_cpos; |
| 354 | disptop = 0; |
| 355 | deselect(); |
| 356 | term_update(); |
| 357 | } |
| 358 | |
| 359 | /* |
| 360 | * When the user reconfigures us, we need to check the forbidden- |
| 361 | * alternate-screen config option, disable raw mouse mode if the |
| 362 | * user has disabled mouse reporting, and abandon a print job if |
| 363 | * the user has disabled printing. |
| 364 | */ |
| 365 | void term_reconfig(void) |
| 366 | { |
| 367 | if (cfg.no_alt_screen) |
| 368 | swap_screen(0); |
| 369 | if (cfg.no_mouse_rep) { |
| 370 | xterm_mouse = 0; |
| 371 | set_raw_mouse_mode(0); |
| 372 | } |
| 373 | if (cfg.no_remote_charset) { |
| 374 | cset_attr[0] = cset_attr[1] = ATTR_ASCII; |
| 375 | sco_acs = alt_sco_acs = 0; |
| 376 | utf = 0; |
| 377 | } |
| 378 | if (!*cfg.printer) { |
| 379 | term_print_finish(); |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | /* |
| 384 | * Clear the scrollback. |
| 385 | */ |
| 386 | void term_clrsb(void) |
| 387 | { |
| 388 | unsigned long *line; |
| 389 | disptop = 0; |
| 390 | while ((line = delpos234(scrollback, 0)) != NULL) { |
| 391 | sfree(line); |
| 392 | } |
| 393 | update_sbar(); |
| 394 | } |
| 395 | |
| 396 | /* |
| 397 | * Initialise the terminal. |
| 398 | */ |
| 399 | void term_init(void) |
| 400 | { |
| 401 | screen = alt_screen = scrollback = NULL; |
| 402 | disptop = 0; |
| 403 | disptext = dispcurs = NULL; |
| 404 | tabs = NULL; |
| 405 | deselect(); |
| 406 | rows = cols = -1; |
| 407 | power_on(); |
| 408 | beephead = beeptail = NULL; |
| 409 | nbeeps = 0; |
| 410 | lastbeep = FALSE; |
| 411 | beep_overloaded = FALSE; |
| 412 | } |
| 413 | |
| 414 | /* |
| 415 | * Set up the terminal for a given size. |
| 416 | */ |
| 417 | void term_size(int newrows, int newcols, int newsavelines) |
| 418 | { |
| 419 | tree234 *newalt; |
| 420 | unsigned long *newdisp, *line; |
| 421 | int i, j; |
| 422 | int sblen; |
| 423 | int save_alt_which = alt_which; |
| 424 | |
| 425 | if (newrows == rows && newcols == cols && newsavelines == savelines) |
| 426 | return; /* nothing to do */ |
| 427 | |
| 428 | deselect(); |
| 429 | swap_screen(0); |
| 430 | |
| 431 | alt_t = marg_t = 0; |
| 432 | alt_b = marg_b = newrows - 1; |
| 433 | |
| 434 | if (rows == -1) { |
| 435 | scrollback = newtree234(NULL); |
| 436 | screen = newtree234(NULL); |
| 437 | rows = 0; |
| 438 | } |
| 439 | |
| 440 | /* |
| 441 | * Resize the screen and scrollback. We only need to shift |
| 442 | * lines around within our data structures, because lineptr() |
| 443 | * will take care of resizing each individual line if |
| 444 | * necessary. So: |
| 445 | * |
| 446 | * - If the new screen and the old screen differ in length, we |
| 447 | * must shunt some lines in from the scrollback or out to |
| 448 | * the scrollback. |
| 449 | * |
| 450 | * - If doing that fails to provide us with enough material to |
| 451 | * fill the new screen (i.e. the number of rows needed in |
| 452 | * the new screen exceeds the total number in the previous |
| 453 | * screen+scrollback), we must invent some blank lines to |
| 454 | * cover the gap. |
| 455 | * |
| 456 | * - Then, if the new scrollback length is less than the |
| 457 | * amount of scrollback we actually have, we must throw some |
| 458 | * away. |
| 459 | */ |
| 460 | sblen = count234(scrollback); |
| 461 | /* Do this loop to expand the screen if newrows > rows */ |
| 462 | for (i = rows; i < newrows; i++) { |
| 463 | if (sblen > 0) { |
| 464 | line = delpos234(scrollback, --sblen); |
| 465 | } else { |
| 466 | line = smalloc(TSIZE * (newcols + 2)); |
| 467 | line[0] = newcols; |
| 468 | for (j = 0; j <= newcols; j++) |
| 469 | line[j + 1] = ERASE_CHAR; |
| 470 | } |
| 471 | addpos234(screen, line, 0); |
| 472 | } |
| 473 | /* Do this loop to shrink the screen if newrows < rows */ |
| 474 | for (i = newrows; i < rows; i++) { |
| 475 | line = delpos234(screen, 0); |
| 476 | addpos234(scrollback, line, sblen++); |
| 477 | } |
| 478 | assert(count234(screen) == newrows); |
| 479 | while (sblen > newsavelines) { |
| 480 | line = delpos234(scrollback, 0); |
| 481 | sfree(line); |
| 482 | sblen--; |
| 483 | } |
| 484 | assert(count234(scrollback) <= newsavelines); |
| 485 | disptop = 0; |
| 486 | |
| 487 | newdisp = smalloc(newrows * (newcols + 1) * TSIZE); |
| 488 | for (i = 0; i < newrows * (newcols + 1); i++) |
| 489 | newdisp[i] = ATTR_INVALID; |
| 490 | sfree(disptext); |
| 491 | disptext = newdisp; |
| 492 | dispcurs = NULL; |
| 493 | |
| 494 | newalt = newtree234(NULL); |
| 495 | for (i = 0; i < newrows; i++) { |
| 496 | line = smalloc(TSIZE * (newcols + 2)); |
| 497 | line[0] = newcols; |
| 498 | for (j = 0; j <= newcols; j++) |
| 499 | line[j + 1] = erase_char; |
| 500 | addpos234(newalt, line, i); |
| 501 | } |
| 502 | if (alt_screen) { |
| 503 | while (NULL != (line = delpos234(alt_screen, 0))) |
| 504 | sfree(line); |
| 505 | freetree234(alt_screen); |
| 506 | } |
| 507 | alt_screen = newalt; |
| 508 | |
| 509 | tabs = srealloc(tabs, newcols * sizeof(*tabs)); |
| 510 | { |
| 511 | int i; |
| 512 | for (i = (cols > 0 ? cols : 0); i < newcols; i++) |
| 513 | tabs[i] = (i % 8 == 0 ? TRUE : FALSE); |
| 514 | } |
| 515 | |
| 516 | if (rows > 0) |
| 517 | curs.y += newrows - rows; |
| 518 | if (curs.y < 0) |
| 519 | curs.y = 0; |
| 520 | if (curs.y >= newrows) |
| 521 | curs.y = newrows - 1; |
| 522 | if (curs.x >= newcols) |
| 523 | curs.x = newcols - 1; |
| 524 | alt_x = alt_y = 0; |
| 525 | wrapnext = alt_wnext = FALSE; |
| 526 | |
| 527 | rows = newrows; |
| 528 | cols = newcols; |
| 529 | savelines = newsavelines; |
| 530 | fix_cpos; |
| 531 | |
| 532 | swap_screen(save_alt_which); |
| 533 | |
| 534 | update_sbar(); |
| 535 | term_update(); |
| 536 | back->size(); |
| 537 | } |
| 538 | |
| 539 | /* |
| 540 | * Swap screens. |
| 541 | */ |
| 542 | static void swap_screen(int which) |
| 543 | { |
| 544 | int t; |
| 545 | tree234 *ttr; |
| 546 | |
| 547 | if (which == alt_which) |
| 548 | return; |
| 549 | |
| 550 | alt_which = which; |
| 551 | |
| 552 | ttr = alt_screen; |
| 553 | alt_screen = screen; |
| 554 | screen = ttr; |
| 555 | t = curs.x; |
| 556 | curs.x = alt_x; |
| 557 | alt_x = t; |
| 558 | t = curs.y; |
| 559 | curs.y = alt_y; |
| 560 | alt_y = t; |
| 561 | t = marg_t; |
| 562 | marg_t = alt_t; |
| 563 | alt_t = t; |
| 564 | t = marg_b; |
| 565 | marg_b = alt_b; |
| 566 | alt_b = t; |
| 567 | t = dec_om; |
| 568 | dec_om = alt_om; |
| 569 | alt_om = t; |
| 570 | t = wrap; |
| 571 | wrap = alt_wrap; |
| 572 | alt_wrap = t; |
| 573 | t = wrapnext; |
| 574 | wrapnext = alt_wnext; |
| 575 | alt_wnext = t; |
| 576 | t = insert; |
| 577 | insert = alt_ins; |
| 578 | alt_ins = t; |
| 579 | t = cset; |
| 580 | cset = alt_cset; |
| 581 | alt_cset = t; |
| 582 | t = utf; |
| 583 | utf = alt_utf; |
| 584 | alt_utf = t; |
| 585 | t = sco_acs; |
| 586 | sco_acs = alt_sco_acs; |
| 587 | alt_sco_acs = t; |
| 588 | |
| 589 | fix_cpos; |
| 590 | } |
| 591 | |
| 592 | /* |
| 593 | * Update the scroll bar. |
| 594 | */ |
| 595 | static void update_sbar(void) |
| 596 | { |
| 597 | int nscroll; |
| 598 | |
| 599 | nscroll = count234(scrollback); |
| 600 | |
| 601 | set_sbar(nscroll + rows, nscroll + disptop, rows); |
| 602 | } |
| 603 | |
| 604 | /* |
| 605 | * Check whether the region bounded by the two pointers intersects |
| 606 | * the scroll region, and de-select the on-screen selection if so. |
| 607 | */ |
| 608 | static void check_selection(pos from, pos to) |
| 609 | { |
| 610 | if (poslt(from, selend) && poslt(selstart, to)) |
| 611 | deselect(); |
| 612 | } |
| 613 | |
| 614 | /* |
| 615 | * Scroll the screen. (`lines' is +ve for scrolling forward, -ve |
| 616 | * for backward.) `sb' is TRUE if the scrolling is permitted to |
| 617 | * affect the scrollback buffer. |
| 618 | * |
| 619 | * NB this function invalidates all pointers into lines of the |
| 620 | * screen data structures. In particular, you MUST call fix_cpos |
| 621 | * after calling scroll() and before doing anything else that |
| 622 | * uses the cpos shortcut pointer. |
| 623 | */ |
| 624 | static void scroll(int topline, int botline, int lines, int sb) |
| 625 | { |
| 626 | unsigned long *line, *line2; |
| 627 | int i, seltop; |
| 628 | |
| 629 | if (topline != 0 || alt_which != 0) |
| 630 | sb = FALSE; |
| 631 | |
| 632 | if (lines < 0) { |
| 633 | while (lines < 0) { |
| 634 | line = delpos234(screen, botline); |
| 635 | line = resizeline(line, cols); |
| 636 | for (i = 0; i < cols; i++) |
| 637 | line[i + 1] = erase_char; |
| 638 | line[cols + 1] = 0; |
| 639 | addpos234(screen, line, topline); |
| 640 | |
| 641 | if (selstart.y >= topline && selstart.y <= botline) { |
| 642 | selstart.y++; |
| 643 | if (selstart.y > botline) { |
| 644 | selstart.y = botline; |
| 645 | selstart.x = 0; |
| 646 | } |
| 647 | } |
| 648 | if (selend.y >= topline && selend.y <= botline) { |
| 649 | selend.y++; |
| 650 | if (selend.y > botline) { |
| 651 | selend.y = botline; |
| 652 | selend.x = 0; |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | lines++; |
| 657 | } |
| 658 | } else { |
| 659 | while (lines > 0) { |
| 660 | line = delpos234(screen, topline); |
| 661 | if (sb && savelines > 0) { |
| 662 | int sblen = count234(scrollback); |
| 663 | /* |
| 664 | * We must add this line to the scrollback. We'll |
| 665 | * remove a line from the top of the scrollback to |
| 666 | * replace it, or allocate a new one if the |
| 667 | * scrollback isn't full. |
| 668 | */ |
| 669 | if (sblen == savelines) { |
| 670 | sblen--, line2 = delpos234(scrollback, 0); |
| 671 | } else { |
| 672 | line2 = smalloc(TSIZE * (cols + 2)); |
| 673 | line2[0] = cols; |
| 674 | } |
| 675 | addpos234(scrollback, line, sblen); |
| 676 | line = line2; |
| 677 | |
| 678 | /* |
| 679 | * If the user is currently looking at part of the |
| 680 | * scrollback, and they haven't enabled any options |
| 681 | * that are going to reset the scrollback as a |
| 682 | * result of this movement, then the chances are |
| 683 | * they'd like to keep looking at the same line. So |
| 684 | * we move their viewpoint at the same rate as the |
| 685 | * scroll, at least until their viewpoint hits the |
| 686 | * top end of the scrollback buffer, at which point |
| 687 | * we don't have the choice any more. |
| 688 | * |
| 689 | * Thanks to Jan Holmen Holsten for the idea and |
| 690 | * initial implementation. |
| 691 | */ |
| 692 | if (disptop > -savelines && disptop < 0) |
| 693 | disptop--; |
| 694 | } |
| 695 | line = resizeline(line, cols); |
| 696 | for (i = 0; i < cols; i++) |
| 697 | line[i + 1] = erase_char; |
| 698 | line[cols + 1] = 0; |
| 699 | addpos234(screen, line, botline); |
| 700 | |
| 701 | /* |
| 702 | * If the selection endpoints move into the scrollback, |
| 703 | * we keep them moving until they hit the top. However, |
| 704 | * of course, if the line _hasn't_ moved into the |
| 705 | * scrollback then we don't do this, and cut them off |
| 706 | * at the top of the scroll region. |
| 707 | * |
| 708 | * This applies to selstart and selend (for an existing |
| 709 | * selection), and also selanchor (for one being |
| 710 | * selected as we speak). |
| 711 | */ |
| 712 | seltop = sb ? -savelines : topline; |
| 713 | |
| 714 | if (selstart.y >= seltop && selstart.y <= botline) { |
| 715 | selstart.y--; |
| 716 | if (selstart.y < seltop) { |
| 717 | selstart.y = seltop; |
| 718 | selstart.x = 0; |
| 719 | } |
| 720 | } |
| 721 | if (selend.y >= seltop && selend.y <= botline) { |
| 722 | selend.y--; |
| 723 | if (selend.y < seltop) { |
| 724 | selend.y = seltop; |
| 725 | selend.x = 0; |
| 726 | } |
| 727 | } |
| 728 | if (selanchor.y >= seltop && selanchor.y <= botline) { |
| 729 | selanchor.y--; |
| 730 | if (selanchor.y < seltop) { |
| 731 | selanchor.y = seltop; |
| 732 | selanchor.x = 0; |
| 733 | } |
| 734 | } |
| 735 | |
| 736 | lines--; |
| 737 | } |
| 738 | } |
| 739 | } |
| 740 | |
| 741 | /* |
| 742 | * Move the cursor to a given position, clipping at boundaries. We |
| 743 | * may or may not want to clip at the scroll margin: marg_clip is 0 |
| 744 | * not to, 1 to disallow _passing_ the margins, and 2 to disallow |
| 745 | * even _being_ outside the margins. |
| 746 | */ |
| 747 | static void move(int x, int y, int marg_clip) |
| 748 | { |
| 749 | if (x < 0) |
| 750 | x = 0; |
| 751 | if (x >= cols) |
| 752 | x = cols - 1; |
| 753 | if (marg_clip) { |
| 754 | if ((curs.y >= marg_t || marg_clip == 2) && y < marg_t) |
| 755 | y = marg_t; |
| 756 | if ((curs.y <= marg_b || marg_clip == 2) && y > marg_b) |
| 757 | y = marg_b; |
| 758 | } |
| 759 | if (y < 0) |
| 760 | y = 0; |
| 761 | if (y >= rows) |
| 762 | y = rows - 1; |
| 763 | curs.x = x; |
| 764 | curs.y = y; |
| 765 | fix_cpos; |
| 766 | wrapnext = FALSE; |
| 767 | } |
| 768 | |
| 769 | /* |
| 770 | * Save or restore the cursor and SGR mode. |
| 771 | */ |
| 772 | static void save_cursor(int save) |
| 773 | { |
| 774 | if (save) { |
| 775 | savecurs = curs; |
| 776 | save_attr = curr_attr; |
| 777 | save_cset = cset; |
| 778 | save_utf = utf; |
| 779 | save_wnext = wrapnext; |
| 780 | save_csattr = cset_attr[cset]; |
| 781 | save_sco_acs = sco_acs; |
| 782 | } else { |
| 783 | curs = savecurs; |
| 784 | /* Make sure the window hasn't shrunk since the save */ |
| 785 | if (curs.x >= cols) |
| 786 | curs.x = cols - 1; |
| 787 | if (curs.y >= rows) |
| 788 | curs.y = rows - 1; |
| 789 | |
| 790 | curr_attr = save_attr; |
| 791 | cset = save_cset; |
| 792 | utf = save_utf; |
| 793 | wrapnext = save_wnext; |
| 794 | /* |
| 795 | * wrapnext might reset to False if the x position is no |
| 796 | * longer at the rightmost edge. |
| 797 | */ |
| 798 | if (wrapnext && curs.x < cols-1) |
| 799 | wrapnext = FALSE; |
| 800 | cset_attr[cset] = save_csattr; |
| 801 | sco_acs = save_sco_acs; |
| 802 | fix_cpos; |
| 803 | if (use_bce) |
| 804 | erase_char = (' ' | ATTR_ASCII | |
| 805 | (curr_attr & (ATTR_FGMASK | ATTR_BGMASK))); |
| 806 | } |
| 807 | } |
| 808 | |
| 809 | /* |
| 810 | * Erase a large portion of the screen: the whole screen, or the |
| 811 | * whole line, or parts thereof. |
| 812 | */ |
| 813 | static void erase_lots(int line_only, int from_begin, int to_end) |
| 814 | { |
| 815 | pos start, end; |
| 816 | int erase_lattr; |
| 817 | unsigned long *ldata; |
| 818 | |
| 819 | if (line_only) { |
| 820 | start.y = curs.y; |
| 821 | start.x = 0; |
| 822 | end.y = curs.y + 1; |
| 823 | end.x = 0; |
| 824 | erase_lattr = FALSE; |
| 825 | } else { |
| 826 | start.y = 0; |
| 827 | start.x = 0; |
| 828 | end.y = rows; |
| 829 | end.x = 0; |
| 830 | erase_lattr = TRUE; |
| 831 | } |
| 832 | if (!from_begin) { |
| 833 | start = curs; |
| 834 | } |
| 835 | if (!to_end) { |
| 836 | end = curs; |
| 837 | incpos(end); |
| 838 | } |
| 839 | check_selection(start, end); |
| 840 | |
| 841 | /* Clear screen also forces a full window redraw, just in case. */ |
| 842 | if (start.y == 0 && start.x == 0 && end.y == rows) |
| 843 | term_invalidate(); |
| 844 | |
| 845 | ldata = lineptr(start.y); |
| 846 | while (poslt(start, end)) { |
| 847 | if (start.x == cols && !erase_lattr) |
| 848 | ldata[start.x] &= ~LATTR_WRAPPED; |
| 849 | else |
| 850 | ldata[start.x] = erase_char; |
| 851 | if (incpos(start) && start.y < rows) |
| 852 | ldata = lineptr(start.y); |
| 853 | } |
| 854 | } |
| 855 | |
| 856 | /* |
| 857 | * Insert or delete characters within the current line. n is +ve if |
| 858 | * insertion is desired, and -ve for deletion. |
| 859 | */ |
| 860 | static void insch(int n) |
| 861 | { |
| 862 | int dir = (n < 0 ? -1 : +1); |
| 863 | int m; |
| 864 | pos cursplus; |
| 865 | unsigned long *ldata; |
| 866 | |
| 867 | n = (n < 0 ? -n : n); |
| 868 | if (n > cols - curs.x) |
| 869 | n = cols - curs.x; |
| 870 | m = cols - curs.x - n; |
| 871 | cursplus.y = curs.y; |
| 872 | cursplus.x = curs.x + n; |
| 873 | check_selection(curs, cursplus); |
| 874 | ldata = lineptr(curs.y); |
| 875 | if (dir < 0) { |
| 876 | memmove(ldata + curs.x, ldata + curs.x + n, m * TSIZE); |
| 877 | while (n--) |
| 878 | ldata[curs.x + m++] = erase_char; |
| 879 | } else { |
| 880 | memmove(ldata + curs.x + n, ldata + curs.x, m * TSIZE); |
| 881 | while (n--) |
| 882 | ldata[curs.x + n] = erase_char; |
| 883 | } |
| 884 | } |
| 885 | |
| 886 | /* |
| 887 | * Toggle terminal mode `mode' to state `state'. (`query' indicates |
| 888 | * whether the mode is a DEC private one or a normal one.) |
| 889 | */ |
| 890 | static void toggle_mode(int mode, int query, int state) |
| 891 | { |
| 892 | unsigned long ticks; |
| 893 | |
| 894 | if (query) |
| 895 | switch (mode) { |
| 896 | case 1: /* application cursor keys */ |
| 897 | app_cursor_keys = state; |
| 898 | break; |
| 899 | case 2: /* VT52 mode */ |
| 900 | vt52_mode = !state; |
| 901 | if (vt52_mode) { |
| 902 | blink_is_real = FALSE; |
| 903 | vt52_bold = FALSE; |
| 904 | } else { |
| 905 | blink_is_real = cfg.blinktext; |
| 906 | } |
| 907 | break; |
| 908 | case 3: /* 80/132 columns */ |
| 909 | deselect(); |
| 910 | if (!cfg.no_remote_resize) |
| 911 | request_resize(state ? 132 : 80, rows); |
| 912 | reset_132 = state; |
| 913 | break; |
| 914 | case 5: /* reverse video */ |
| 915 | /* |
| 916 | * Toggle reverse video. If we receive an OFF within the |
| 917 | * visual bell timeout period after an ON, we trigger an |
| 918 | * effective visual bell, so that ESC[?5hESC[?5l will |
| 919 | * always be an actually _visible_ visual bell. |
| 920 | */ |
| 921 | ticks = GetTickCount(); |
| 922 | /* turn off a previous vbell to avoid inconsistencies */ |
| 923 | if (ticks - vbell_startpoint >= VBELL_TIMEOUT) |
| 924 | in_vbell = FALSE; |
| 925 | if (rvideo && !state && /* we're turning it off... */ |
| 926 | (ticks - rvbell_startpoint) < VBELL_TIMEOUT) { /* ...soon */ |
| 927 | /* If there's no vbell timeout already, or this one lasts |
| 928 | * longer, replace vbell_timeout with ours. */ |
| 929 | if (!in_vbell || |
| 930 | (rvbell_startpoint - vbell_startpoint < VBELL_TIMEOUT)) |
| 931 | vbell_startpoint = rvbell_startpoint; |
| 932 | in_vbell = TRUE; /* we may clear rvideo but we set in_vbell */ |
| 933 | } else if (!rvideo && state) { |
| 934 | /* This is an ON, so we notice the time and save it. */ |
| 935 | rvbell_startpoint = ticks; |
| 936 | } |
| 937 | rvideo = state; |
| 938 | seen_disp_event = TRUE; |
| 939 | if (state) |
| 940 | term_update(); |
| 941 | break; |
| 942 | case 6: /* DEC origin mode */ |
| 943 | dec_om = state; |
| 944 | break; |
| 945 | case 7: /* auto wrap */ |
| 946 | wrap = state; |
| 947 | break; |
| 948 | case 8: /* auto key repeat */ |
| 949 | repeat_off = !state; |
| 950 | break; |
| 951 | case 10: /* set local edit mode */ |
| 952 | term_editing = state; |
| 953 | ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */ |
| 954 | break; |
| 955 | case 25: /* enable/disable cursor */ |
| 956 | compatibility2(OTHER, VT220); |
| 957 | cursor_on = state; |
| 958 | seen_disp_event = TRUE; |
| 959 | break; |
| 960 | case 47: /* alternate screen */ |
| 961 | compatibility(OTHER); |
| 962 | deselect(); |
| 963 | swap_screen(cfg.no_alt_screen ? 0 : state); |
| 964 | disptop = 0; |
| 965 | break; |
| 966 | case 1000: /* xterm mouse 1 */ |
| 967 | xterm_mouse = state ? 1 : 0; |
| 968 | set_raw_mouse_mode(state); |
| 969 | break; |
| 970 | case 1002: /* xterm mouse 2 */ |
| 971 | xterm_mouse = state ? 2 : 0; |
| 972 | set_raw_mouse_mode(state); |
| 973 | break; |
| 974 | } else |
| 975 | switch (mode) { |
| 976 | case 4: /* set insert mode */ |
| 977 | compatibility(VT102); |
| 978 | insert = state; |
| 979 | break; |
| 980 | case 12: /* set echo mode */ |
| 981 | term_echoing = !state; |
| 982 | ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */ |
| 983 | break; |
| 984 | case 20: /* Return sends ... */ |
| 985 | cr_lf_return = state; |
| 986 | break; |
| 987 | case 34: /* Make cursor BIG */ |
| 988 | compatibility2(OTHER, VT220); |
| 989 | big_cursor = !state; |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | /* |
| 994 | * Process an OSC sequence: set window title or icon name. |
| 995 | */ |
| 996 | static void do_osc(void) |
| 997 | { |
| 998 | if (osc_w) { |
| 999 | while (osc_strlen--) |
| 1000 | wordness[(unsigned char) osc_string[osc_strlen]] = esc_args[0]; |
| 1001 | } else { |
| 1002 | osc_string[osc_strlen] = '\0'; |
| 1003 | switch (esc_args[0]) { |
| 1004 | case 0: |
| 1005 | case 1: |
| 1006 | if (!cfg.no_remote_wintitle) |
| 1007 | set_icon(osc_string); |
| 1008 | if (esc_args[0] == 1) |
| 1009 | break; |
| 1010 | /* fall through: parameter 0 means set both */ |
| 1011 | case 2: |
| 1012 | case 21: |
| 1013 | if (!cfg.no_remote_wintitle) |
| 1014 | set_title(osc_string); |
| 1015 | break; |
| 1016 | } |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | /* |
| 1021 | * ANSI printing routines. |
| 1022 | */ |
| 1023 | static void term_print_setup(void) |
| 1024 | { |
| 1025 | bufchain_clear(&printer_buf); |
| 1026 | print_job = printer_start_job(cfg.printer); |
| 1027 | } |
| 1028 | static void term_print_flush(void) |
| 1029 | { |
| 1030 | void *data; |
| 1031 | int len; |
| 1032 | int size; |
| 1033 | while ((size = bufchain_size(&printer_buf)) > 5) { |
| 1034 | bufchain_prefix(&printer_buf, &data, &len); |
| 1035 | if (len > size-5) |
| 1036 | len = size-5; |
| 1037 | printer_job_data(print_job, data, len); |
| 1038 | bufchain_consume(&printer_buf, len); |
| 1039 | } |
| 1040 | } |
| 1041 | static void term_print_finish(void) |
| 1042 | { |
| 1043 | void *data; |
| 1044 | int len, size; |
| 1045 | char c; |
| 1046 | |
| 1047 | term_print_flush(); |
| 1048 | while ((size = bufchain_size(&printer_buf)) > 0) { |
| 1049 | bufchain_prefix(&printer_buf, &data, &len); |
| 1050 | c = *(char *)data; |
| 1051 | if (c == '\033' || c == '\233') { |
| 1052 | bufchain_consume(&printer_buf, size); |
| 1053 | break; |
| 1054 | } else { |
| 1055 | printer_job_data(print_job, &c, 1); |
| 1056 | bufchain_consume(&printer_buf, 1); |
| 1057 | } |
| 1058 | } |
| 1059 | printer_finish_job(print_job); |
| 1060 | print_job = NULL; |
| 1061 | printing = only_printing = FALSE; |
| 1062 | } |
| 1063 | |
| 1064 | /* |
| 1065 | * Remove everything currently in `inbuf' and stick it up on the |
| 1066 | * in-memory display. There's a big state machine in here to |
| 1067 | * process escape sequences... |
| 1068 | */ |
| 1069 | void term_out(void) |
| 1070 | { |
| 1071 | int c, unget; |
| 1072 | unsigned char localbuf[256], *chars; |
| 1073 | int nchars = 0; |
| 1074 | |
| 1075 | unget = -1; |
| 1076 | |
| 1077 | while (nchars > 0 || bufchain_size(&inbuf) > 0) { |
| 1078 | if (unget == -1) { |
| 1079 | if (nchars == 0) { |
| 1080 | void *ret; |
| 1081 | bufchain_prefix(&inbuf, &ret, &nchars); |
| 1082 | if (nchars > sizeof(localbuf)) |
| 1083 | nchars = sizeof(localbuf); |
| 1084 | memcpy(localbuf, ret, nchars); |
| 1085 | bufchain_consume(&inbuf, nchars); |
| 1086 | chars = localbuf; |
| 1087 | assert(chars != NULL); |
| 1088 | } |
| 1089 | c = *chars++; |
| 1090 | nchars--; |
| 1091 | |
| 1092 | /* |
| 1093 | * Optionally log the session traffic to a file. Useful for |
| 1094 | * debugging and possibly also useful for actual logging. |
| 1095 | */ |
| 1096 | if (cfg.logtype == LGTYP_DEBUG) |
| 1097 | logtraffic((unsigned char) c, LGTYP_DEBUG); |
| 1098 | } else { |
| 1099 | c = unget; |
| 1100 | unget = -1; |
| 1101 | } |
| 1102 | |
| 1103 | /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even |
| 1104 | * be able to display 8-bit characters, but I'll let that go 'cause |
| 1105 | * of i18n. |
| 1106 | */ |
| 1107 | |
| 1108 | /* |
| 1109 | * If we're printing, add the character to the printer |
| 1110 | * buffer. |
| 1111 | */ |
| 1112 | if (printing) { |
| 1113 | char cc = c; |
| 1114 | bufchain_add(&printer_buf, &c, 1); |
| 1115 | |
| 1116 | /* |
| 1117 | * If we're in print-only mode, we use a much simpler |
| 1118 | * state machine designed only to recognise the ESC[4i |
| 1119 | * termination sequence. |
| 1120 | */ |
| 1121 | if (only_printing) { |
| 1122 | if (c == '\033') |
| 1123 | print_state = 1; |
| 1124 | else if (c == (unsigned char)'\233') |
| 1125 | print_state = 2; |
| 1126 | else if (c == '[' && print_state == 1) |
| 1127 | print_state = 2; |
| 1128 | else if (c == '4' && print_state == 2) |
| 1129 | print_state = 3; |
| 1130 | else if (c == 'i' && print_state == 3) |
| 1131 | print_state = 4; |
| 1132 | else |
| 1133 | print_state = 0; |
| 1134 | if (print_state == 4) { |
| 1135 | printing = only_printing = FALSE; |
| 1136 | term_print_finish(); |
| 1137 | } |
| 1138 | continue; |
| 1139 | } |
| 1140 | } |
| 1141 | |
| 1142 | /* First see about all those translations. */ |
| 1143 | if (termstate == TOPLEVEL) { |
| 1144 | if (in_utf) |
| 1145 | switch (utf_state) { |
| 1146 | case 0: |
| 1147 | if (c < 0x80) { |
| 1148 | /* UTF-8 must be stateless so we ignore iso2022. */ |
| 1149 | if (unitab_ctrl[c] != 0xFF) |
| 1150 | c = unitab_ctrl[c]; |
| 1151 | else c = ((unsigned char)c) | ATTR_ASCII; |
| 1152 | break; |
| 1153 | } else if ((c & 0xe0) == 0xc0) { |
| 1154 | utf_size = utf_state = 1; |
| 1155 | utf_char = (c & 0x1f); |
| 1156 | } else if ((c & 0xf0) == 0xe0) { |
| 1157 | utf_size = utf_state = 2; |
| 1158 | utf_char = (c & 0x0f); |
| 1159 | } else if ((c & 0xf8) == 0xf0) { |
| 1160 | utf_size = utf_state = 3; |
| 1161 | utf_char = (c & 0x07); |
| 1162 | } else if ((c & 0xfc) == 0xf8) { |
| 1163 | utf_size = utf_state = 4; |
| 1164 | utf_char = (c & 0x03); |
| 1165 | } else if ((c & 0xfe) == 0xfc) { |
| 1166 | utf_size = utf_state = 5; |
| 1167 | utf_char = (c & 0x01); |
| 1168 | } else { |
| 1169 | c = UCSERR; |
| 1170 | break; |
| 1171 | } |
| 1172 | continue; |
| 1173 | case 1: |
| 1174 | case 2: |
| 1175 | case 3: |
| 1176 | case 4: |
| 1177 | case 5: |
| 1178 | if ((c & 0xC0) != 0x80) { |
| 1179 | unget = c; |
| 1180 | c = UCSERR; |
| 1181 | utf_state = 0; |
| 1182 | break; |
| 1183 | } |
| 1184 | utf_char = (utf_char << 6) | (c & 0x3f); |
| 1185 | if (--utf_state) |
| 1186 | continue; |
| 1187 | |
| 1188 | c = utf_char; |
| 1189 | |
| 1190 | /* Is somebody trying to be evil! */ |
| 1191 | if (c < 0x80 || |
| 1192 | (c < 0x800 && utf_size >= 2) || |
| 1193 | (c < 0x10000 && utf_size >= 3) || |
| 1194 | (c < 0x200000 && utf_size >= 4) || |
| 1195 | (c < 0x4000000 && utf_size >= 5)) |
| 1196 | c = UCSERR; |
| 1197 | |
| 1198 | /* Unicode line separator and paragraph separator are CR-LF */ |
| 1199 | if (c == 0x2028 || c == 0x2029) |
| 1200 | c = 0x85; |
| 1201 | |
| 1202 | /* High controls are probably a Baaad idea too. */ |
| 1203 | if (c < 0xA0) |
| 1204 | c = 0xFFFD; |
| 1205 | |
| 1206 | /* The UTF-16 surrogates are not nice either. */ |
| 1207 | /* The standard give the option of decoding these: |
| 1208 | * I don't want to! */ |
| 1209 | if (c >= 0xD800 && c < 0xE000) |
| 1210 | c = UCSERR; |
| 1211 | |
| 1212 | /* ISO 10646 characters now limited to UTF-16 range. */ |
| 1213 | if (c > 0x10FFFF) |
| 1214 | c = UCSERR; |
| 1215 | |
| 1216 | /* This is currently a TagPhobic application.. */ |
| 1217 | if (c >= 0xE0000 && c <= 0xE007F) |
| 1218 | continue; |
| 1219 | |
| 1220 | /* U+FEFF is best seen as a null. */ |
| 1221 | if (c == 0xFEFF) |
| 1222 | continue; |
| 1223 | /* But U+FFFE is an error. */ |
| 1224 | if (c == 0xFFFE || c == 0xFFFF) |
| 1225 | c = UCSERR; |
| 1226 | |
| 1227 | /* Oops this is a 16bit implementation */ |
| 1228 | if (c >= 0x10000) |
| 1229 | c = 0xFFFD; |
| 1230 | break; |
| 1231 | } |
| 1232 | /* Are we in the nasty ACS mode? Note: no sco in utf mode. */ |
| 1233 | else if(sco_acs && |
| 1234 | (c!='\033' && c!='\n' && c!='\r' && c!='\b')) |
| 1235 | { |
| 1236 | if (sco_acs == 2) c ^= 0x80; |
| 1237 | c |= ATTR_SCOACS; |
| 1238 | } else { |
| 1239 | switch (cset_attr[cset]) { |
| 1240 | /* |
| 1241 | * Linedraw characters are different from 'ESC ( B' |
| 1242 | * only for a small range. For ones outside that |
| 1243 | * range, make sure we use the same font as well as |
| 1244 | * the same encoding. |
| 1245 | */ |
| 1246 | case ATTR_LINEDRW: |
| 1247 | if (unitab_ctrl[c] != 0xFF) |
| 1248 | c = unitab_ctrl[c]; |
| 1249 | else |
| 1250 | c = ((unsigned char) c) | ATTR_LINEDRW; |
| 1251 | break; |
| 1252 | |
| 1253 | case ATTR_GBCHR: |
| 1254 | /* If UK-ASCII, make the '#' a LineDraw Pound */ |
| 1255 | if (c == '#') { |
| 1256 | c = '}' | ATTR_LINEDRW; |
| 1257 | break; |
| 1258 | } |
| 1259 | /*FALLTHROUGH*/ case ATTR_ASCII: |
| 1260 | if (unitab_ctrl[c] != 0xFF) |
| 1261 | c = unitab_ctrl[c]; |
| 1262 | else |
| 1263 | c = ((unsigned char) c) | ATTR_ASCII; |
| 1264 | break; |
| 1265 | case ATTR_SCOACS: |
| 1266 | if (c>=' ') c = ((unsigned char)c) | ATTR_SCOACS; |
| 1267 | break; |
| 1268 | } |
| 1269 | } |
| 1270 | } |
| 1271 | |
| 1272 | /* How about C1 controls ? */ |
| 1273 | if ((c & -32) == 0x80 && termstate < DO_CTRLS && !vt52_mode && |
| 1274 | has_compat(VT220)) { |
| 1275 | termstate = SEEN_ESC; |
| 1276 | esc_query = FALSE; |
| 1277 | c = '@' + (c & 0x1F); |
| 1278 | } |
| 1279 | |
| 1280 | /* Or the GL control. */ |
| 1281 | if (c == '\177' && termstate < DO_CTRLS && has_compat(OTHER)) { |
| 1282 | if (curs.x && !wrapnext) |
| 1283 | curs.x--; |
| 1284 | wrapnext = FALSE; |
| 1285 | fix_cpos; |
| 1286 | if (!cfg.no_dbackspace) /* destructive bksp might be disabled */ |
| 1287 | *cpos = (' ' | curr_attr | ATTR_ASCII); |
| 1288 | } else |
| 1289 | /* Or normal C0 controls. */ |
| 1290 | if ((c & -32) == 0 && termstate < DO_CTRLS) { |
| 1291 | switch (c) { |
| 1292 | case '\005': /* terminal type query */ |
| 1293 | /* Strictly speaking this is VT100 but a VT100 defaults to |
| 1294 | * no response. Other terminals respond at their option. |
| 1295 | * |
| 1296 | * Don't put a CR in the default string as this tends to |
| 1297 | * upset some weird software. |
| 1298 | * |
| 1299 | * An xterm returns "xterm" (5 characters) |
| 1300 | */ |
| 1301 | compatibility(ANSIMIN); |
| 1302 | { |
| 1303 | char abuf[256], *s, *d; |
| 1304 | int state = 0; |
| 1305 | for (s = cfg.answerback, d = abuf; *s; s++) { |
| 1306 | if (state) { |
| 1307 | if (*s >= 'a' && *s <= 'z') |
| 1308 | *d++ = (*s - ('a' - 1)); |
| 1309 | else if ((*s >= '@' && *s <= '_') || |
| 1310 | *s == '?' || (*s & 0x80)) |
| 1311 | *d++ = ('@' ^ *s); |
| 1312 | else if (*s == '~') |
| 1313 | *d++ = '^'; |
| 1314 | state = 0; |
| 1315 | } else if (*s == '^') { |
| 1316 | state = 1; |
| 1317 | } else |
| 1318 | *d++ = *s; |
| 1319 | } |
| 1320 | lpage_send(CP_ACP, abuf, d - abuf, 0); |
| 1321 | } |
| 1322 | break; |
| 1323 | case '\007': |
| 1324 | { |
| 1325 | struct beeptime *newbeep; |
| 1326 | unsigned long ticks; |
| 1327 | |
| 1328 | ticks = GetTickCount(); |
| 1329 | |
| 1330 | if (!beep_overloaded) { |
| 1331 | newbeep = smalloc(sizeof(struct beeptime)); |
| 1332 | newbeep->ticks = ticks; |
| 1333 | newbeep->next = NULL; |
| 1334 | if (!beephead) |
| 1335 | beephead = newbeep; |
| 1336 | else |
| 1337 | beeptail->next = newbeep; |
| 1338 | beeptail = newbeep; |
| 1339 | nbeeps++; |
| 1340 | } |
| 1341 | |
| 1342 | /* |
| 1343 | * Throw out any beeps that happened more than |
| 1344 | * t seconds ago. |
| 1345 | */ |
| 1346 | while (beephead && |
| 1347 | beephead->ticks < ticks - cfg.bellovl_t) { |
| 1348 | struct beeptime *tmp = beephead; |
| 1349 | beephead = tmp->next; |
| 1350 | sfree(tmp); |
| 1351 | if (!beephead) |
| 1352 | beeptail = NULL; |
| 1353 | nbeeps--; |
| 1354 | } |
| 1355 | |
| 1356 | if (cfg.bellovl && beep_overloaded && |
| 1357 | ticks - lastbeep >= (unsigned)cfg.bellovl_s) { |
| 1358 | /* |
| 1359 | * If we're currently overloaded and the |
| 1360 | * last beep was more than s seconds ago, |
| 1361 | * leave overload mode. |
| 1362 | */ |
| 1363 | beep_overloaded = FALSE; |
| 1364 | } else if (cfg.bellovl && !beep_overloaded && |
| 1365 | nbeeps >= cfg.bellovl_n) { |
| 1366 | /* |
| 1367 | * Now, if we have n or more beeps |
| 1368 | * remaining in the queue, go into overload |
| 1369 | * mode. |
| 1370 | */ |
| 1371 | beep_overloaded = TRUE; |
| 1372 | } |
| 1373 | lastbeep = ticks; |
| 1374 | |
| 1375 | /* |
| 1376 | * Perform an actual beep if we're not overloaded. |
| 1377 | */ |
| 1378 | if (!cfg.bellovl || !beep_overloaded) { |
| 1379 | beep(cfg.beep); |
| 1380 | if (cfg.beep == BELL_VISUAL) { |
| 1381 | in_vbell = TRUE; |
| 1382 | vbell_startpoint = ticks; |
| 1383 | term_update(); |
| 1384 | } |
| 1385 | } |
| 1386 | disptop = 0; |
| 1387 | } |
| 1388 | break; |
| 1389 | case '\b': |
| 1390 | if (curs.x == 0 && (curs.y == 0 || wrap == 0)); |
| 1391 | else if (curs.x == 0 && curs.y > 0) |
| 1392 | curs.x = cols - 1, curs.y--; |
| 1393 | else if (wrapnext) |
| 1394 | wrapnext = FALSE; |
| 1395 | else |
| 1396 | curs.x--; |
| 1397 | fix_cpos; |
| 1398 | seen_disp_event = TRUE; |
| 1399 | break; |
| 1400 | case '\016': |
| 1401 | compatibility(VT100); |
| 1402 | cset = 1; |
| 1403 | break; |
| 1404 | case '\017': |
| 1405 | compatibility(VT100); |
| 1406 | cset = 0; |
| 1407 | break; |
| 1408 | case '\033': |
| 1409 | if (vt52_mode) |
| 1410 | termstate = VT52_ESC; |
| 1411 | else { |
| 1412 | compatibility(ANSIMIN); |
| 1413 | termstate = SEEN_ESC; |
| 1414 | esc_query = FALSE; |
| 1415 | } |
| 1416 | break; |
| 1417 | case '\r': |
| 1418 | curs.x = 0; |
| 1419 | wrapnext = FALSE; |
| 1420 | fix_cpos; |
| 1421 | seen_disp_event = TRUE; |
| 1422 | paste_hold = 0; |
| 1423 | logtraffic((unsigned char) c, LGTYP_ASCII); |
| 1424 | break; |
| 1425 | case '\014': |
| 1426 | if (has_compat(SCOANSI)) { |
| 1427 | move(0, 0, 0); |
| 1428 | erase_lots(FALSE, FALSE, TRUE); |
| 1429 | disptop = 0; |
| 1430 | wrapnext = FALSE; |
| 1431 | seen_disp_event = 1; |
| 1432 | break; |
| 1433 | } |
| 1434 | case '\013': |
| 1435 | compatibility(VT100); |
| 1436 | case '\n': |
| 1437 | if (curs.y == marg_b) |
| 1438 | scroll(marg_t, marg_b, 1, TRUE); |
| 1439 | else if (curs.y < rows - 1) |
| 1440 | curs.y++; |
| 1441 | if (cfg.lfhascr) |
| 1442 | curs.x = 0; |
| 1443 | fix_cpos; |
| 1444 | wrapnext = FALSE; |
| 1445 | seen_disp_event = 1; |
| 1446 | paste_hold = 0; |
| 1447 | logtraffic((unsigned char) c, LGTYP_ASCII); |
| 1448 | break; |
| 1449 | case '\t': |
| 1450 | { |
| 1451 | pos old_curs = curs; |
| 1452 | unsigned long *ldata = lineptr(curs.y); |
| 1453 | |
| 1454 | do { |
| 1455 | curs.x++; |
| 1456 | } while (curs.x < cols - 1 && !tabs[curs.x]); |
| 1457 | |
| 1458 | if ((ldata[cols] & LATTR_MODE) != LATTR_NORM) { |
| 1459 | if (curs.x >= cols / 2) |
| 1460 | curs.x = cols / 2 - 1; |
| 1461 | } else { |
| 1462 | if (curs.x >= cols) |
| 1463 | curs.x = cols - 1; |
| 1464 | } |
| 1465 | |
| 1466 | fix_cpos; |
| 1467 | check_selection(old_curs, curs); |
| 1468 | } |
| 1469 | seen_disp_event = TRUE; |
| 1470 | break; |
| 1471 | } |
| 1472 | } else |
| 1473 | switch (termstate) { |
| 1474 | case TOPLEVEL: |
| 1475 | /* Only graphic characters get this far, ctrls are stripped above */ |
| 1476 | if (wrapnext && wrap) { |
| 1477 | cpos[1] |= LATTR_WRAPPED; |
| 1478 | if (curs.y == marg_b) |
| 1479 | scroll(marg_t, marg_b, 1, TRUE); |
| 1480 | else if (curs.y < rows - 1) |
| 1481 | curs.y++; |
| 1482 | curs.x = 0; |
| 1483 | fix_cpos; |
| 1484 | wrapnext = FALSE; |
| 1485 | } |
| 1486 | if (insert) |
| 1487 | insch(1); |
| 1488 | if (selstate != NO_SELECTION) { |
| 1489 | pos cursplus = curs; |
| 1490 | incpos(cursplus); |
| 1491 | check_selection(curs, cursplus); |
| 1492 | } |
| 1493 | if ((c & CSET_MASK) == ATTR_ASCII || (c & CSET_MASK) == 0) |
| 1494 | logtraffic((unsigned char) c, LGTYP_ASCII); |
| 1495 | { |
| 1496 | extern int wcwidth(wchar_t ucs); |
| 1497 | int width = 0; |
| 1498 | if (DIRECT_CHAR(c)) |
| 1499 | width = 1; |
| 1500 | if (!width) |
| 1501 | width = wcwidth((wchar_t) c); |
| 1502 | switch (width) { |
| 1503 | case 2: |
| 1504 | *cpos++ = c | curr_attr; |
| 1505 | if (++curs.x == cols) { |
| 1506 | *cpos |= LATTR_WRAPPED; |
| 1507 | if (curs.y == marg_b) |
| 1508 | scroll(marg_t, marg_b, 1, TRUE); |
| 1509 | else if (curs.y < rows - 1) |
| 1510 | curs.y++; |
| 1511 | curs.x = 0; |
| 1512 | fix_cpos; |
| 1513 | } |
| 1514 | *cpos++ = UCSWIDE | curr_attr; |
| 1515 | break; |
| 1516 | case 1: |
| 1517 | *cpos++ = c | curr_attr; |
| 1518 | break; |
| 1519 | default: |
| 1520 | continue; |
| 1521 | } |
| 1522 | } |
| 1523 | curs.x++; |
| 1524 | if (curs.x == cols) { |
| 1525 | cpos--; |
| 1526 | curs.x--; |
| 1527 | wrapnext = TRUE; |
| 1528 | if (wrap && vt52_mode) { |
| 1529 | cpos[1] |= LATTR_WRAPPED; |
| 1530 | if (curs.y == marg_b) |
| 1531 | scroll(marg_t, marg_b, 1, TRUE); |
| 1532 | else if (curs.y < rows - 1) |
| 1533 | curs.y++; |
| 1534 | curs.x = 0; |
| 1535 | fix_cpos; |
| 1536 | wrapnext = FALSE; |
| 1537 | } |
| 1538 | } |
| 1539 | seen_disp_event = 1; |
| 1540 | break; |
| 1541 | |
| 1542 | case OSC_MAYBE_ST: |
| 1543 | /* |
| 1544 | * This state is virtually identical to SEEN_ESC, with the |
| 1545 | * exception that we have an OSC sequence in the pipeline, |
| 1546 | * and _if_ we see a backslash, we process it. |
| 1547 | */ |
| 1548 | if (c == '\\') { |
| 1549 | do_osc(); |
| 1550 | termstate = TOPLEVEL; |
| 1551 | break; |
| 1552 | } |
| 1553 | /* else fall through */ |
| 1554 | case SEEN_ESC: |
| 1555 | if (c >= ' ' && c <= '/') { |
| 1556 | if (esc_query) |
| 1557 | esc_query = -1; |
| 1558 | else |
| 1559 | esc_query = c; |
| 1560 | break; |
| 1561 | } |
| 1562 | termstate = TOPLEVEL; |
| 1563 | switch (ANSI(c, esc_query)) { |
| 1564 | case '[': /* enter CSI mode */ |
| 1565 | termstate = SEEN_CSI; |
| 1566 | esc_nargs = 1; |
| 1567 | esc_args[0] = ARG_DEFAULT; |
| 1568 | esc_query = FALSE; |
| 1569 | break; |
| 1570 | case ']': /* xterm escape sequences */ |
| 1571 | /* Compatibility is nasty here, xterm, linux, decterm yuk! */ |
| 1572 | compatibility(OTHER); |
| 1573 | termstate = SEEN_OSC; |
| 1574 | esc_args[0] = 0; |
| 1575 | break; |
| 1576 | case '7': /* save cursor */ |
| 1577 | compatibility(VT100); |
| 1578 | save_cursor(TRUE); |
| 1579 | break; |
| 1580 | case '8': /* restore cursor */ |
| 1581 | compatibility(VT100); |
| 1582 | save_cursor(FALSE); |
| 1583 | seen_disp_event = TRUE; |
| 1584 | break; |
| 1585 | case '=': |
| 1586 | compatibility(VT100); |
| 1587 | app_keypad_keys = TRUE; |
| 1588 | break; |
| 1589 | case '>': |
| 1590 | compatibility(VT100); |
| 1591 | app_keypad_keys = FALSE; |
| 1592 | break; |
| 1593 | case 'D': /* exactly equivalent to LF */ |
| 1594 | compatibility(VT100); |
| 1595 | if (curs.y == marg_b) |
| 1596 | scroll(marg_t, marg_b, 1, TRUE); |
| 1597 | else if (curs.y < rows - 1) |
| 1598 | curs.y++; |
| 1599 | fix_cpos; |
| 1600 | wrapnext = FALSE; |
| 1601 | seen_disp_event = TRUE; |
| 1602 | break; |
| 1603 | case 'E': /* exactly equivalent to CR-LF */ |
| 1604 | compatibility(VT100); |
| 1605 | curs.x = 0; |
| 1606 | if (curs.y == marg_b) |
| 1607 | scroll(marg_t, marg_b, 1, TRUE); |
| 1608 | else if (curs.y < rows - 1) |
| 1609 | curs.y++; |
| 1610 | fix_cpos; |
| 1611 | wrapnext = FALSE; |
| 1612 | seen_disp_event = TRUE; |
| 1613 | break; |
| 1614 | case 'M': /* reverse index - backwards LF */ |
| 1615 | compatibility(VT100); |
| 1616 | if (curs.y == marg_t) |
| 1617 | scroll(marg_t, marg_b, -1, TRUE); |
| 1618 | else if (curs.y > 0) |
| 1619 | curs.y--; |
| 1620 | fix_cpos; |
| 1621 | wrapnext = FALSE; |
| 1622 | seen_disp_event = TRUE; |
| 1623 | break; |
| 1624 | case 'Z': /* terminal type query */ |
| 1625 | compatibility(VT100); |
| 1626 | ldisc_send(id_string, strlen(id_string), 0); |
| 1627 | break; |
| 1628 | case 'c': /* restore power-on settings */ |
| 1629 | compatibility(VT100); |
| 1630 | power_on(); |
| 1631 | if (reset_132) { |
| 1632 | if (!cfg.no_remote_resize) |
| 1633 | request_resize(80, rows); |
| 1634 | reset_132 = 0; |
| 1635 | } |
| 1636 | fix_cpos; |
| 1637 | disptop = 0; |
| 1638 | seen_disp_event = TRUE; |
| 1639 | break; |
| 1640 | case 'H': /* set a tab */ |
| 1641 | compatibility(VT100); |
| 1642 | tabs[curs.x] = TRUE; |
| 1643 | break; |
| 1644 | |
| 1645 | case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */ |
| 1646 | compatibility(VT100); |
| 1647 | { |
| 1648 | unsigned long *ldata; |
| 1649 | int i, j; |
| 1650 | pos scrtop, scrbot; |
| 1651 | |
| 1652 | for (i = 0; i < rows; i++) { |
| 1653 | ldata = lineptr(i); |
| 1654 | for (j = 0; j < cols; j++) |
| 1655 | ldata[j] = ATTR_DEFAULT | 'E'; |
| 1656 | ldata[cols] = 0; |
| 1657 | } |
| 1658 | disptop = 0; |
| 1659 | seen_disp_event = TRUE; |
| 1660 | scrtop.x = scrtop.y = 0; |
| 1661 | scrbot.x = 0; |
| 1662 | scrbot.y = rows; |
| 1663 | check_selection(scrtop, scrbot); |
| 1664 | } |
| 1665 | break; |
| 1666 | |
| 1667 | case ANSI('3', '#'): |
| 1668 | case ANSI('4', '#'): |
| 1669 | case ANSI('5', '#'): |
| 1670 | case ANSI('6', '#'): |
| 1671 | compatibility(VT100); |
| 1672 | { |
| 1673 | unsigned long nlattr; |
| 1674 | unsigned long *ldata; |
| 1675 | switch (ANSI(c, esc_query)) { |
| 1676 | case ANSI('3', '#'): |
| 1677 | nlattr = LATTR_TOP; |
| 1678 | break; |
| 1679 | case ANSI('4', '#'): |
| 1680 | nlattr = LATTR_BOT; |
| 1681 | break; |
| 1682 | case ANSI('5', '#'): |
| 1683 | nlattr = LATTR_NORM; |
| 1684 | break; |
| 1685 | default: /* spiritually case ANSI('6', '#'): */ |
| 1686 | nlattr = LATTR_WIDE; |
| 1687 | break; |
| 1688 | } |
| 1689 | ldata = lineptr(curs.y); |
| 1690 | ldata[cols] &= ~LATTR_MODE; |
| 1691 | ldata[cols] |= nlattr; |
| 1692 | } |
| 1693 | break; |
| 1694 | |
| 1695 | case ANSI('A', '('): |
| 1696 | compatibility(VT100); |
| 1697 | if (!cfg.no_remote_charset) |
| 1698 | cset_attr[0] = ATTR_GBCHR; |
| 1699 | break; |
| 1700 | case ANSI('B', '('): |
| 1701 | compatibility(VT100); |
| 1702 | if (!cfg.no_remote_charset) |
| 1703 | cset_attr[0] = ATTR_ASCII; |
| 1704 | break; |
| 1705 | case ANSI('0', '('): |
| 1706 | compatibility(VT100); |
| 1707 | if (!cfg.no_remote_charset) |
| 1708 | cset_attr[0] = ATTR_LINEDRW; |
| 1709 | break; |
| 1710 | case ANSI('U', '('): |
| 1711 | compatibility(OTHER); |
| 1712 | if (!cfg.no_remote_charset) |
| 1713 | cset_attr[0] = ATTR_SCOACS; |
| 1714 | break; |
| 1715 | |
| 1716 | case ANSI('A', ')'): |
| 1717 | compatibility(VT100); |
| 1718 | if (!cfg.no_remote_charset) |
| 1719 | cset_attr[1] = ATTR_GBCHR; |
| 1720 | break; |
| 1721 | case ANSI('B', ')'): |
| 1722 | compatibility(VT100); |
| 1723 | if (!cfg.no_remote_charset) |
| 1724 | cset_attr[1] = ATTR_ASCII; |
| 1725 | break; |
| 1726 | case ANSI('0', ')'): |
| 1727 | compatibility(VT100); |
| 1728 | if (!cfg.no_remote_charset) |
| 1729 | cset_attr[1] = ATTR_LINEDRW; |
| 1730 | break; |
| 1731 | case ANSI('U', ')'): |
| 1732 | compatibility(OTHER); |
| 1733 | if (!cfg.no_remote_charset) |
| 1734 | cset_attr[1] = ATTR_SCOACS; |
| 1735 | break; |
| 1736 | |
| 1737 | case ANSI('8', '%'): /* Old Linux code */ |
| 1738 | case ANSI('G', '%'): |
| 1739 | compatibility(OTHER); |
| 1740 | if (!cfg.no_remote_charset) |
| 1741 | utf = 1; |
| 1742 | break; |
| 1743 | case ANSI('@', '%'): |
| 1744 | compatibility(OTHER); |
| 1745 | if (!cfg.no_remote_charset) |
| 1746 | utf = 0; |
| 1747 | break; |
| 1748 | } |
| 1749 | break; |
| 1750 | case SEEN_CSI: |
| 1751 | termstate = TOPLEVEL; /* default */ |
| 1752 | if (isdigit(c)) { |
| 1753 | if (esc_nargs <= ARGS_MAX) { |
| 1754 | if (esc_args[esc_nargs - 1] == ARG_DEFAULT) |
| 1755 | esc_args[esc_nargs - 1] = 0; |
| 1756 | esc_args[esc_nargs - 1] = |
| 1757 | 10 * esc_args[esc_nargs - 1] + c - '0'; |
| 1758 | } |
| 1759 | termstate = SEEN_CSI; |
| 1760 | } else if (c == ';') { |
| 1761 | if (++esc_nargs <= ARGS_MAX) |
| 1762 | esc_args[esc_nargs - 1] = ARG_DEFAULT; |
| 1763 | termstate = SEEN_CSI; |
| 1764 | } else if (c < '@') { |
| 1765 | if (esc_query) |
| 1766 | esc_query = -1; |
| 1767 | else if (c == '?') |
| 1768 | esc_query = TRUE; |
| 1769 | else |
| 1770 | esc_query = c; |
| 1771 | termstate = SEEN_CSI; |
| 1772 | } else |
| 1773 | switch (ANSI(c, esc_query)) { |
| 1774 | case 'A': /* move up N lines */ |
| 1775 | move(curs.x, curs.y - def(esc_args[0], 1), 1); |
| 1776 | seen_disp_event = TRUE; |
| 1777 | break; |
| 1778 | case 'e': /* move down N lines */ |
| 1779 | compatibility(ANSI); |
| 1780 | /* FALLTHROUGH */ |
| 1781 | case 'B': |
| 1782 | move(curs.x, curs.y + def(esc_args[0], 1), 1); |
| 1783 | seen_disp_event = TRUE; |
| 1784 | break; |
| 1785 | case ANSI('c', '>'): /* report xterm version */ |
| 1786 | compatibility(OTHER); |
| 1787 | /* this reports xterm version 136 so that VIM can |
| 1788 | use the drag messages from the mouse reporting */ |
| 1789 | ldisc_send("\033[>0;136;0c", 11, 0); |
| 1790 | break; |
| 1791 | case 'a': /* move right N cols */ |
| 1792 | compatibility(ANSI); |
| 1793 | /* FALLTHROUGH */ |
| 1794 | case 'C': |
| 1795 | move(curs.x + def(esc_args[0], 1), curs.y, 1); |
| 1796 | seen_disp_event = TRUE; |
| 1797 | break; |
| 1798 | case 'D': /* move left N cols */ |
| 1799 | move(curs.x - def(esc_args[0], 1), curs.y, 1); |
| 1800 | seen_disp_event = TRUE; |
| 1801 | break; |
| 1802 | case 'E': /* move down N lines and CR */ |
| 1803 | compatibility(ANSI); |
| 1804 | move(0, curs.y + def(esc_args[0], 1), 1); |
| 1805 | seen_disp_event = TRUE; |
| 1806 | break; |
| 1807 | case 'F': /* move up N lines and CR */ |
| 1808 | compatibility(ANSI); |
| 1809 | move(0, curs.y - def(esc_args[0], 1), 1); |
| 1810 | seen_disp_event = TRUE; |
| 1811 | break; |
| 1812 | case 'G': |
| 1813 | case '`': /* set horizontal posn */ |
| 1814 | compatibility(ANSI); |
| 1815 | move(def(esc_args[0], 1) - 1, curs.y, 0); |
| 1816 | seen_disp_event = TRUE; |
| 1817 | break; |
| 1818 | case 'd': /* set vertical posn */ |
| 1819 | compatibility(ANSI); |
| 1820 | move(curs.x, |
| 1821 | (dec_om ? marg_t : 0) + def(esc_args[0], |
| 1822 | 1) - 1, |
| 1823 | (dec_om ? 2 : 0)); |
| 1824 | seen_disp_event = TRUE; |
| 1825 | break; |
| 1826 | case 'H': |
| 1827 | case 'f': /* set horz and vert posns at once */ |
| 1828 | if (esc_nargs < 2) |
| 1829 | esc_args[1] = ARG_DEFAULT; |
| 1830 | move(def(esc_args[1], 1) - 1, |
| 1831 | (dec_om ? marg_t : 0) + def(esc_args[0], |
| 1832 | 1) - 1, |
| 1833 | (dec_om ? 2 : 0)); |
| 1834 | seen_disp_event = TRUE; |
| 1835 | break; |
| 1836 | case 'J': /* erase screen or parts of it */ |
| 1837 | { |
| 1838 | unsigned int i = def(esc_args[0], 0) + 1; |
| 1839 | if (i > 3) |
| 1840 | i = 0; |
| 1841 | erase_lots(FALSE, !!(i & 2), !!(i & 1)); |
| 1842 | } |
| 1843 | disptop = 0; |
| 1844 | seen_disp_event = TRUE; |
| 1845 | break; |
| 1846 | case 'K': /* erase line or parts of it */ |
| 1847 | { |
| 1848 | unsigned int i = def(esc_args[0], 0) + 1; |
| 1849 | if (i > 3) |
| 1850 | i = 0; |
| 1851 | erase_lots(TRUE, !!(i & 2), !!(i & 1)); |
| 1852 | } |
| 1853 | seen_disp_event = TRUE; |
| 1854 | break; |
| 1855 | case 'L': /* insert lines */ |
| 1856 | compatibility(VT102); |
| 1857 | if (curs.y <= marg_b) |
| 1858 | scroll(curs.y, marg_b, -def(esc_args[0], 1), |
| 1859 | FALSE); |
| 1860 | fix_cpos; |
| 1861 | seen_disp_event = TRUE; |
| 1862 | break; |
| 1863 | case 'M': /* delete lines */ |
| 1864 | compatibility(VT102); |
| 1865 | if (curs.y <= marg_b) |
| 1866 | scroll(curs.y, marg_b, def(esc_args[0], 1), |
| 1867 | TRUE); |
| 1868 | fix_cpos; |
| 1869 | seen_disp_event = TRUE; |
| 1870 | break; |
| 1871 | case '@': /* insert chars */ |
| 1872 | /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ |
| 1873 | compatibility(VT102); |
| 1874 | insch(def(esc_args[0], 1)); |
| 1875 | seen_disp_event = TRUE; |
| 1876 | break; |
| 1877 | case 'P': /* delete chars */ |
| 1878 | compatibility(VT102); |
| 1879 | insch(-def(esc_args[0], 1)); |
| 1880 | seen_disp_event = TRUE; |
| 1881 | break; |
| 1882 | case 'c': /* terminal type query */ |
| 1883 | compatibility(VT100); |
| 1884 | /* This is the response for a VT102 */ |
| 1885 | ldisc_send(id_string, strlen(id_string), 0); |
| 1886 | break; |
| 1887 | case 'n': /* cursor position query */ |
| 1888 | if (esc_args[0] == 6) { |
| 1889 | char buf[32]; |
| 1890 | sprintf(buf, "\033[%d;%dR", curs.y + 1, |
| 1891 | curs.x + 1); |
| 1892 | ldisc_send(buf, strlen(buf), 0); |
| 1893 | } else if (esc_args[0] == 5) { |
| 1894 | ldisc_send("\033[0n", 4, 0); |
| 1895 | } |
| 1896 | break; |
| 1897 | case 'h': /* toggle modes to high */ |
| 1898 | case ANSI_QUE('h'): |
| 1899 | compatibility(VT100); |
| 1900 | { |
| 1901 | int i; |
| 1902 | for (i = 0; i < esc_nargs; i++) |
| 1903 | toggle_mode(esc_args[i], esc_query, TRUE); |
| 1904 | } |
| 1905 | break; |
| 1906 | case 'i': |
| 1907 | case ANSI_QUE('i'): |
| 1908 | compatibility(VT100); |
| 1909 | { |
| 1910 | int i; |
| 1911 | if (esc_nargs != 1) break; |
| 1912 | if (esc_args[0] == 5 && *cfg.printer) { |
| 1913 | printing = TRUE; |
| 1914 | only_printing = !esc_query; |
| 1915 | print_state = 0; |
| 1916 | term_print_setup(); |
| 1917 | } else if (esc_args[0] == 4 && printing) { |
| 1918 | printing = FALSE; |
| 1919 | only_printing = FALSE; |
| 1920 | term_print_finish(); |
| 1921 | } |
| 1922 | } |
| 1923 | break; |
| 1924 | case 'l': /* toggle modes to low */ |
| 1925 | case ANSI_QUE('l'): |
| 1926 | compatibility(VT100); |
| 1927 | { |
| 1928 | int i; |
| 1929 | for (i = 0; i < esc_nargs; i++) |
| 1930 | toggle_mode(esc_args[i], esc_query, FALSE); |
| 1931 | } |
| 1932 | break; |
| 1933 | case 'g': /* clear tabs */ |
| 1934 | compatibility(VT100); |
| 1935 | if (esc_nargs == 1) { |
| 1936 | if (esc_args[0] == 0) { |
| 1937 | tabs[curs.x] = FALSE; |
| 1938 | } else if (esc_args[0] == 3) { |
| 1939 | int i; |
| 1940 | for (i = 0; i < cols; i++) |
| 1941 | tabs[i] = FALSE; |
| 1942 | } |
| 1943 | } |
| 1944 | break; |
| 1945 | case 'r': /* set scroll margins */ |
| 1946 | compatibility(VT100); |
| 1947 | if (esc_nargs <= 2) { |
| 1948 | int top, bot; |
| 1949 | top = def(esc_args[0], 1) - 1; |
| 1950 | bot = (esc_nargs <= 1 |
| 1951 | || esc_args[1] == |
| 1952 | 0 ? rows : def(esc_args[1], rows)) - 1; |
| 1953 | if (bot >= rows) |
| 1954 | bot = rows - 1; |
| 1955 | /* VTTEST Bug 9 - if region is less than 2 lines |
| 1956 | * don't change region. |
| 1957 | */ |
| 1958 | if (bot - top > 0) { |
| 1959 | marg_t = top; |
| 1960 | marg_b = bot; |
| 1961 | curs.x = 0; |
| 1962 | /* |
| 1963 | * I used to think the cursor should be |
| 1964 | * placed at the top of the newly marginned |
| 1965 | * area. Apparently not: VMS TPU falls over |
| 1966 | * if so. |
| 1967 | * |
| 1968 | * Well actually it should for Origin mode - RDB |
| 1969 | */ |
| 1970 | curs.y = (dec_om ? marg_t : 0); |
| 1971 | fix_cpos; |
| 1972 | seen_disp_event = TRUE; |
| 1973 | } |
| 1974 | } |
| 1975 | break; |
| 1976 | case 'm': /* set graphics rendition */ |
| 1977 | { |
| 1978 | /* |
| 1979 | * A VT100 without the AVO only had one attribute, either |
| 1980 | * underline or reverse video depending on the cursor type, |
| 1981 | * this was selected by CSI 7m. |
| 1982 | * |
| 1983 | * case 2: |
| 1984 | * This is sometimes DIM, eg on the GIGI and Linux |
| 1985 | * case 8: |
| 1986 | * This is sometimes INVIS various ANSI. |
| 1987 | * case 21: |
| 1988 | * This like 22 disables BOLD, DIM and INVIS |
| 1989 | * |
| 1990 | * The ANSI colours appear on any terminal that has colour |
| 1991 | * (obviously) but the interaction between sgr0 and the |
| 1992 | * colours varies but is usually related to the background |
| 1993 | * colour erase item. |
| 1994 | * The interaction between colour attributes and the mono |
| 1995 | * ones is also very implementation dependent. |
| 1996 | * |
| 1997 | * The 39 and 49 attributes are likely to be unimplemented. |
| 1998 | */ |
| 1999 | int i; |
| 2000 | for (i = 0; i < esc_nargs; i++) { |
| 2001 | switch (def(esc_args[i], 0)) { |
| 2002 | case 0: /* restore defaults */ |
| 2003 | curr_attr = ATTR_DEFAULT; |
| 2004 | break; |
| 2005 | case 1: /* enable bold */ |
| 2006 | compatibility(VT100AVO); |
| 2007 | curr_attr |= ATTR_BOLD; |
| 2008 | break; |
| 2009 | case 21: /* (enable double underline) */ |
| 2010 | compatibility(OTHER); |
| 2011 | case 4: /* enable underline */ |
| 2012 | compatibility(VT100AVO); |
| 2013 | curr_attr |= ATTR_UNDER; |
| 2014 | break; |
| 2015 | case 5: /* enable blink */ |
| 2016 | compatibility(VT100AVO); |
| 2017 | curr_attr |= ATTR_BLINK; |
| 2018 | break; |
| 2019 | case 7: /* enable reverse video */ |
| 2020 | curr_attr |= ATTR_REVERSE; |
| 2021 | break; |
| 2022 | case 10: /* SCO acs off */ |
| 2023 | compatibility(SCOANSI); |
| 2024 | if (cfg.no_remote_charset) break; |
| 2025 | sco_acs = 0; break; |
| 2026 | case 11: /* SCO acs on */ |
| 2027 | compatibility(SCOANSI); |
| 2028 | if (cfg.no_remote_charset) break; |
| 2029 | sco_acs = 1; break; |
| 2030 | case 12: /* SCO acs on flipped */ |
| 2031 | compatibility(SCOANSI); |
| 2032 | if (cfg.no_remote_charset) break; |
| 2033 | sco_acs = 2; break; |
| 2034 | case 22: /* disable bold */ |
| 2035 | compatibility2(OTHER, VT220); |
| 2036 | curr_attr &= ~ATTR_BOLD; |
| 2037 | break; |
| 2038 | case 24: /* disable underline */ |
| 2039 | compatibility2(OTHER, VT220); |
| 2040 | curr_attr &= ~ATTR_UNDER; |
| 2041 | break; |
| 2042 | case 25: /* disable blink */ |
| 2043 | compatibility2(OTHER, VT220); |
| 2044 | curr_attr &= ~ATTR_BLINK; |
| 2045 | break; |
| 2046 | case 27: /* disable reverse video */ |
| 2047 | compatibility2(OTHER, VT220); |
| 2048 | curr_attr &= ~ATTR_REVERSE; |
| 2049 | break; |
| 2050 | case 30: |
| 2051 | case 31: |
| 2052 | case 32: |
| 2053 | case 33: |
| 2054 | case 34: |
| 2055 | case 35: |
| 2056 | case 36: |
| 2057 | case 37: |
| 2058 | /* foreground */ |
| 2059 | curr_attr &= ~ATTR_FGMASK; |
| 2060 | curr_attr |= |
| 2061 | (esc_args[i] - 30) << ATTR_FGSHIFT; |
| 2062 | break; |
| 2063 | case 39: /* default-foreground */ |
| 2064 | curr_attr &= ~ATTR_FGMASK; |
| 2065 | curr_attr |= ATTR_DEFFG; |
| 2066 | break; |
| 2067 | case 40: |
| 2068 | case 41: |
| 2069 | case 42: |
| 2070 | case 43: |
| 2071 | case 44: |
| 2072 | case 45: |
| 2073 | case 46: |
| 2074 | case 47: |
| 2075 | /* background */ |
| 2076 | curr_attr &= ~ATTR_BGMASK; |
| 2077 | curr_attr |= |
| 2078 | (esc_args[i] - 40) << ATTR_BGSHIFT; |
| 2079 | break; |
| 2080 | case 49: /* default-background */ |
| 2081 | curr_attr &= ~ATTR_BGMASK; |
| 2082 | curr_attr |= ATTR_DEFBG; |
| 2083 | break; |
| 2084 | } |
| 2085 | } |
| 2086 | if (use_bce) |
| 2087 | erase_char = (' ' | ATTR_ASCII | |
| 2088 | (curr_attr & |
| 2089 | (ATTR_FGMASK | ATTR_BGMASK))); |
| 2090 | } |
| 2091 | break; |
| 2092 | case 's': /* save cursor */ |
| 2093 | save_cursor(TRUE); |
| 2094 | break; |
| 2095 | case 'u': /* restore cursor */ |
| 2096 | save_cursor(FALSE); |
| 2097 | seen_disp_event = TRUE; |
| 2098 | break; |
| 2099 | case 't': /* set page size - ie window height */ |
| 2100 | /* |
| 2101 | * VT340/VT420 sequence DECSLPP, DEC only allows values |
| 2102 | * 24/25/36/48/72/144 other emulators (eg dtterm) use |
| 2103 | * illegal values (eg first arg 1..9) for window changing |
| 2104 | * and reports. |
| 2105 | */ |
| 2106 | if (esc_nargs <= 1 |
| 2107 | && (esc_args[0] < 1 || esc_args[0] >= 24)) { |
| 2108 | compatibility(VT340TEXT); |
| 2109 | if (!cfg.no_remote_resize) |
| 2110 | request_resize(cols, def(esc_args[0], 24)); |
| 2111 | deselect(); |
| 2112 | } else if (esc_nargs >= 1 && |
| 2113 | esc_args[0] >= 1 && |
| 2114 | esc_args[0] < 24) { |
| 2115 | compatibility(OTHER); |
| 2116 | |
| 2117 | switch (esc_args[0]) { |
| 2118 | int x, y, len; |
| 2119 | char buf[80], *p; |
| 2120 | case 1: |
| 2121 | set_iconic(FALSE); |
| 2122 | break; |
| 2123 | case 2: |
| 2124 | set_iconic(TRUE); |
| 2125 | break; |
| 2126 | case 3: |
| 2127 | if (esc_nargs >= 3) { |
| 2128 | if (!cfg.no_remote_resize) |
| 2129 | move_window(def(esc_args[1], 0), |
| 2130 | def(esc_args[2], 0)); |
| 2131 | } |
| 2132 | break; |
| 2133 | case 4: |
| 2134 | /* We should resize the window to a given |
| 2135 | * size in pixels here, but currently our |
| 2136 | * resizing code isn't healthy enough to |
| 2137 | * manage it. */ |
| 2138 | break; |
| 2139 | case 5: |
| 2140 | set_zorder(TRUE); /* move to top */ |
| 2141 | break; |
| 2142 | case 6: |
| 2143 | set_zorder(FALSE); /* move to bottom */ |
| 2144 | break; |
| 2145 | case 7: |
| 2146 | refresh_window(); |
| 2147 | break; |
| 2148 | case 8: |
| 2149 | if (esc_nargs >= 3) { |
| 2150 | if (!cfg.no_remote_resize) |
| 2151 | request_resize(def(esc_args[2], cfg.width), |
| 2152 | def(esc_args[1], cfg.height)); |
| 2153 | } |
| 2154 | break; |
| 2155 | case 9: |
| 2156 | if (esc_nargs >= 2) |
| 2157 | set_zoomed(esc_args[1] ? TRUE : FALSE); |
| 2158 | break; |
| 2159 | case 11: |
| 2160 | ldisc_send(is_iconic() ? "\033[1t" : "\033[2t", |
| 2161 | 4, 0); |
| 2162 | break; |
| 2163 | case 13: |
| 2164 | get_window_pos(&x, &y); |
| 2165 | len = sprintf(buf, "\033[3;%d;%dt", x, y); |
| 2166 | ldisc_send(buf, len, 0); |
| 2167 | break; |
| 2168 | case 14: |
| 2169 | get_window_pixels(&x, &y); |
| 2170 | len = sprintf(buf, "\033[4;%d;%dt", x, y); |
| 2171 | ldisc_send(buf, len, 0); |
| 2172 | break; |
| 2173 | case 18: |
| 2174 | len = sprintf(buf, "\033[8;%d;%dt", |
| 2175 | rows, cols); |
| 2176 | ldisc_send(buf, len, 0); |
| 2177 | break; |
| 2178 | case 19: |
| 2179 | /* |
| 2180 | * Hmmm. Strictly speaking we |
| 2181 | * should return `the size of the |
| 2182 | * screen in characters', but |
| 2183 | * that's not easy: (a) window |
| 2184 | * furniture being what it is it's |
| 2185 | * hard to compute, and (b) in |
| 2186 | * resize-font mode maximising the |
| 2187 | * window wouldn't change the |
| 2188 | * number of characters. *shrug*. I |
| 2189 | * think we'll ignore it for the |
| 2190 | * moment and see if anyone |
| 2191 | * complains, and then ask them |
| 2192 | * what they would like it to do. |
| 2193 | */ |
| 2194 | break; |
| 2195 | case 20: |
| 2196 | p = get_window_title(TRUE); |
| 2197 | len = strlen(p); |
| 2198 | ldisc_send("\033]L", 3, 0); |
| 2199 | ldisc_send(p, len, 0); |
| 2200 | ldisc_send("\033\\", 2, 0); |
| 2201 | break; |
| 2202 | case 21: |
| 2203 | p = get_window_title(FALSE); |
| 2204 | len = strlen(p); |
| 2205 | ldisc_send("\033]l", 3, 0); |
| 2206 | ldisc_send(p, len, 0); |
| 2207 | ldisc_send("\033\\", 2, 0); |
| 2208 | break; |
| 2209 | } |
| 2210 | } |
| 2211 | break; |
| 2212 | case 'S': |
| 2213 | compatibility(SCOANSI); |
| 2214 | scroll(marg_t, marg_b, def(esc_args[0], 1), TRUE); |
| 2215 | fix_cpos; |
| 2216 | wrapnext = FALSE; |
| 2217 | seen_disp_event = TRUE; |
| 2218 | break; |
| 2219 | case 'T': |
| 2220 | compatibility(SCOANSI); |
| 2221 | scroll(marg_t, marg_b, -def(esc_args[0], 1), TRUE); |
| 2222 | fix_cpos; |
| 2223 | wrapnext = FALSE; |
| 2224 | seen_disp_event = TRUE; |
| 2225 | break; |
| 2226 | case ANSI('|', '*'): |
| 2227 | /* VT420 sequence DECSNLS |
| 2228 | * Set number of lines on screen |
| 2229 | * VT420 uses VGA like hardware and can support any size in |
| 2230 | * reasonable range (24..49 AIUI) with no default specified. |
| 2231 | */ |
| 2232 | compatibility(VT420); |
| 2233 | if (esc_nargs == 1 && esc_args[0] > 0) { |
| 2234 | if (!cfg.no_remote_resize) |
| 2235 | request_resize(cols, def(esc_args[0], cfg.height)); |
| 2236 | deselect(); |
| 2237 | } |
| 2238 | break; |
| 2239 | case ANSI('|', '$'): |
| 2240 | /* VT340/VT420 sequence DECSCPP |
| 2241 | * Set number of columns per page |
| 2242 | * Docs imply range is only 80 or 132, but I'll allow any. |
| 2243 | */ |
| 2244 | compatibility(VT340TEXT); |
| 2245 | if (esc_nargs <= 1) { |
| 2246 | if (!cfg.no_remote_resize) |
| 2247 | request_resize(def(esc_args[0], cfg.width), rows); |
| 2248 | deselect(); |
| 2249 | } |
| 2250 | break; |
| 2251 | case 'X': /* write N spaces w/o moving cursor */ |
| 2252 | /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ |
| 2253 | compatibility(ANSIMIN); |
| 2254 | { |
| 2255 | int n = def(esc_args[0], 1); |
| 2256 | pos cursplus; |
| 2257 | unsigned long *p = cpos; |
| 2258 | if (n > cols - curs.x) |
| 2259 | n = cols - curs.x; |
| 2260 | cursplus = curs; |
| 2261 | cursplus.x += n; |
| 2262 | check_selection(curs, cursplus); |
| 2263 | while (n--) |
| 2264 | *p++ = erase_char; |
| 2265 | seen_disp_event = TRUE; |
| 2266 | } |
| 2267 | break; |
| 2268 | case 'x': /* report terminal characteristics */ |
| 2269 | compatibility(VT100); |
| 2270 | { |
| 2271 | char buf[32]; |
| 2272 | int i = def(esc_args[0], 0); |
| 2273 | if (i == 0 || i == 1) { |
| 2274 | strcpy(buf, "\033[2;1;1;112;112;1;0x"); |
| 2275 | buf[2] += i; |
| 2276 | ldisc_send(buf, 20, 0); |
| 2277 | } |
| 2278 | } |
| 2279 | break; |
| 2280 | case 'Z': /* BackTab for xterm */ |
| 2281 | compatibility(OTHER); |
| 2282 | { |
| 2283 | int i = def(esc_args[0], 1); |
| 2284 | pos old_curs = curs; |
| 2285 | |
| 2286 | for(;i>0 && curs.x>0; i--) { |
| 2287 | do { |
| 2288 | curs.x--; |
| 2289 | } while (curs.x >0 && !tabs[curs.x]); |
| 2290 | } |
| 2291 | fix_cpos; |
| 2292 | check_selection(old_curs, curs); |
| 2293 | } |
| 2294 | break; |
| 2295 | case ANSI('L', '='): |
| 2296 | compatibility(OTHER); |
| 2297 | use_bce = (esc_args[0] <= 0); |
| 2298 | erase_char = ERASE_CHAR; |
| 2299 | if (use_bce) |
| 2300 | erase_char = (' ' | ATTR_ASCII | |
| 2301 | (curr_attr & |
| 2302 | (ATTR_FGMASK | ATTR_BGMASK))); |
| 2303 | break; |
| 2304 | case ANSI('E', '='): |
| 2305 | compatibility(OTHER); |
| 2306 | blink_is_real = (esc_args[0] >= 1); |
| 2307 | break; |
| 2308 | case ANSI('p', '"'): |
| 2309 | /* Allow the host to make this emulator a 'perfect' VT102. |
| 2310 | * This first appeared in the VT220, but we do need to get |
| 2311 | * back to PuTTY mode so I won't check it. |
| 2312 | * |
| 2313 | * The arg in 40..42,50 are a PuTTY extension. |
| 2314 | * The 2nd arg, 8bit vs 7bit is not checked. |
| 2315 | * |
| 2316 | * Setting VT102 mode should also change the Fkeys to |
| 2317 | * generate PF* codes as a real VT102 has no Fkeys. |
| 2318 | * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys |
| 2319 | * send nothing. |
| 2320 | * |
| 2321 | * Note ESC c will NOT change this! |
| 2322 | */ |
| 2323 | |
| 2324 | switch (esc_args[0]) { |
| 2325 | case 61: |
| 2326 | compatibility_level &= ~TM_VTXXX; |
| 2327 | compatibility_level |= TM_VT102; |
| 2328 | break; |
| 2329 | case 62: |
| 2330 | compatibility_level &= ~TM_VTXXX; |
| 2331 | compatibility_level |= TM_VT220; |
| 2332 | break; |
| 2333 | |
| 2334 | default: |
| 2335 | if (esc_args[0] > 60 && esc_args[0] < 70) |
| 2336 | compatibility_level |= TM_VTXXX; |
| 2337 | break; |
| 2338 | |
| 2339 | case 40: |
| 2340 | compatibility_level &= TM_VTXXX; |
| 2341 | break; |
| 2342 | case 41: |
| 2343 | compatibility_level = TM_PUTTY; |
| 2344 | break; |
| 2345 | case 42: |
| 2346 | compatibility_level = TM_SCOANSI; |
| 2347 | break; |
| 2348 | |
| 2349 | case ARG_DEFAULT: |
| 2350 | compatibility_level = TM_PUTTY; |
| 2351 | break; |
| 2352 | case 50: |
| 2353 | break; |
| 2354 | } |
| 2355 | |
| 2356 | /* Change the response to CSI c */ |
| 2357 | if (esc_args[0] == 50) { |
| 2358 | int i; |
| 2359 | char lbuf[64]; |
| 2360 | strcpy(id_string, "\033[?"); |
| 2361 | for (i = 1; i < esc_nargs; i++) { |
| 2362 | if (i != 1) |
| 2363 | strcat(id_string, ";"); |
| 2364 | sprintf(lbuf, "%d", esc_args[i]); |
| 2365 | strcat(id_string, lbuf); |
| 2366 | } |
| 2367 | strcat(id_string, "c"); |
| 2368 | } |
| 2369 | #if 0 |
| 2370 | /* Is this a good idea ? |
| 2371 | * Well we should do a soft reset at this point ... |
| 2372 | */ |
| 2373 | if (!has_compat(VT420) && has_compat(VT100)) { |
| 2374 | if (!cfg.no_remote_resize) { |
| 2375 | if (reset_132) |
| 2376 | request_resize(132, 24); |
| 2377 | else |
| 2378 | request_resize(80, 24); |
| 2379 | } |
| 2380 | } |
| 2381 | #endif |
| 2382 | break; |
| 2383 | } |
| 2384 | break; |
| 2385 | case SEEN_OSC: |
| 2386 | osc_w = FALSE; |
| 2387 | switch (c) { |
| 2388 | case 'P': /* Linux palette sequence */ |
| 2389 | termstate = SEEN_OSC_P; |
| 2390 | osc_strlen = 0; |
| 2391 | break; |
| 2392 | case 'R': /* Linux palette reset */ |
| 2393 | palette_reset(); |
| 2394 | term_invalidate(); |
| 2395 | termstate = TOPLEVEL; |
| 2396 | break; |
| 2397 | case 'W': /* word-set */ |
| 2398 | termstate = SEEN_OSC_W; |
| 2399 | osc_w = TRUE; |
| 2400 | break; |
| 2401 | case '0': |
| 2402 | case '1': |
| 2403 | case '2': |
| 2404 | case '3': |
| 2405 | case '4': |
| 2406 | case '5': |
| 2407 | case '6': |
| 2408 | case '7': |
| 2409 | case '8': |
| 2410 | case '9': |
| 2411 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
| 2412 | break; |
| 2413 | case 'L': |
| 2414 | /* |
| 2415 | * Grotty hack to support xterm and DECterm title |
| 2416 | * sequences concurrently. |
| 2417 | */ |
| 2418 | if (esc_args[0] == 2) { |
| 2419 | esc_args[0] = 1; |
| 2420 | break; |
| 2421 | } |
| 2422 | /* else fall through */ |
| 2423 | default: |
| 2424 | termstate = OSC_STRING; |
| 2425 | osc_strlen = 0; |
| 2426 | } |
| 2427 | break; |
| 2428 | case OSC_STRING: |
| 2429 | /* |
| 2430 | * This OSC stuff is EVIL. It takes just one character to get into |
| 2431 | * sysline mode and it's not initially obvious how to get out. |
| 2432 | * So I've added CR and LF as string aborts. |
| 2433 | * This shouldn't effect compatibility as I believe embedded |
| 2434 | * control characters are supposed to be interpreted (maybe?) |
| 2435 | * and they don't display anything useful anyway. |
| 2436 | * |
| 2437 | * -- RDB |
| 2438 | */ |
| 2439 | if (c == '\n' || c == '\r') { |
| 2440 | termstate = TOPLEVEL; |
| 2441 | } else if (c == 0234 || c == '\007') { |
| 2442 | /* |
| 2443 | * These characters terminate the string; ST and BEL |
| 2444 | * terminate the sequence and trigger instant |
| 2445 | * processing of it, whereas ESC goes back to SEEN_ESC |
| 2446 | * mode unless it is followed by \, in which case it is |
| 2447 | * synonymous with ST in the first place. |
| 2448 | */ |
| 2449 | do_osc(); |
| 2450 | termstate = TOPLEVEL; |
| 2451 | } else if (c == '\033') |
| 2452 | termstate = OSC_MAYBE_ST; |
| 2453 | else if (osc_strlen < OSC_STR_MAX) |
| 2454 | osc_string[osc_strlen++] = c; |
| 2455 | break; |
| 2456 | case SEEN_OSC_P: |
| 2457 | { |
| 2458 | int max = (osc_strlen == 0 ? 21 : 16); |
| 2459 | int val; |
| 2460 | if (c >= '0' && c <= '9') |
| 2461 | val = c - '0'; |
| 2462 | else if (c >= 'A' && c <= 'A' + max - 10) |
| 2463 | val = c - 'A' + 10; |
| 2464 | else if (c >= 'a' && c <= 'a' + max - 10) |
| 2465 | val = c - 'a' + 10; |
| 2466 | else { |
| 2467 | termstate = TOPLEVEL; |
| 2468 | break; |
| 2469 | } |
| 2470 | osc_string[osc_strlen++] = val; |
| 2471 | if (osc_strlen >= 7) { |
| 2472 | palette_set(osc_string[0], |
| 2473 | osc_string[1] * 16 + osc_string[2], |
| 2474 | osc_string[3] * 16 + osc_string[4], |
| 2475 | osc_string[5] * 16 + osc_string[6]); |
| 2476 | term_invalidate(); |
| 2477 | termstate = TOPLEVEL; |
| 2478 | } |
| 2479 | } |
| 2480 | break; |
| 2481 | case SEEN_OSC_W: |
| 2482 | switch (c) { |
| 2483 | case '0': |
| 2484 | case '1': |
| 2485 | case '2': |
| 2486 | case '3': |
| 2487 | case '4': |
| 2488 | case '5': |
| 2489 | case '6': |
| 2490 | case '7': |
| 2491 | case '8': |
| 2492 | case '9': |
| 2493 | esc_args[0] = 10 * esc_args[0] + c - '0'; |
| 2494 | break; |
| 2495 | default: |
| 2496 | termstate = OSC_STRING; |
| 2497 | osc_strlen = 0; |
| 2498 | } |
| 2499 | break; |
| 2500 | case VT52_ESC: |
| 2501 | termstate = TOPLEVEL; |
| 2502 | seen_disp_event = TRUE; |
| 2503 | switch (c) { |
| 2504 | case 'A': |
| 2505 | move(curs.x, curs.y - 1, 1); |
| 2506 | break; |
| 2507 | case 'B': |
| 2508 | move(curs.x, curs.y + 1, 1); |
| 2509 | break; |
| 2510 | case 'C': |
| 2511 | move(curs.x + 1, curs.y, 1); |
| 2512 | break; |
| 2513 | case 'D': |
| 2514 | move(curs.x - 1, curs.y, 1); |
| 2515 | break; |
| 2516 | /* |
| 2517 | * From the VT100 Manual |
| 2518 | * NOTE: The special graphics characters in the VT100 |
| 2519 | * are different from those in the VT52 |
| 2520 | * |
| 2521 | * From VT102 manual: |
| 2522 | * 137 _ Blank - Same |
| 2523 | * 140 ` Reserved - Humm. |
| 2524 | * 141 a Solid rectangle - Similar |
| 2525 | * 142 b 1/ - Top half of fraction for the |
| 2526 | * 143 c 3/ - subscript numbers below. |
| 2527 | * 144 d 5/ |
| 2528 | * 145 e 7/ |
| 2529 | * 146 f Degrees - Same |
| 2530 | * 147 g Plus or minus - Same |
| 2531 | * 150 h Right arrow |
| 2532 | * 151 i Ellipsis (dots) |
| 2533 | * 152 j Divide by |
| 2534 | * 153 k Down arrow |
| 2535 | * 154 l Bar at scan 0 |
| 2536 | * 155 m Bar at scan 1 |
| 2537 | * 156 n Bar at scan 2 |
| 2538 | * 157 o Bar at scan 3 - Similar |
| 2539 | * 160 p Bar at scan 4 - Similar |
| 2540 | * 161 q Bar at scan 5 - Similar |
| 2541 | * 162 r Bar at scan 6 - Same |
| 2542 | * 163 s Bar at scan 7 - Similar |
| 2543 | * 164 t Subscript 0 |
| 2544 | * 165 u Subscript 1 |
| 2545 | * 166 v Subscript 2 |
| 2546 | * 167 w Subscript 3 |
| 2547 | * 170 x Subscript 4 |
| 2548 | * 171 y Subscript 5 |
| 2549 | * 172 z Subscript 6 |
| 2550 | * 173 { Subscript 7 |
| 2551 | * 174 | Subscript 8 |
| 2552 | * 175 } Subscript 9 |
| 2553 | * 176 ~ Paragraph |
| 2554 | * |
| 2555 | */ |
| 2556 | case 'F': |
| 2557 | cset_attr[cset = 0] = ATTR_LINEDRW; |
| 2558 | break; |
| 2559 | case 'G': |
| 2560 | cset_attr[cset = 0] = ATTR_ASCII; |
| 2561 | break; |
| 2562 | case 'H': |
| 2563 | move(0, 0, 0); |
| 2564 | break; |
| 2565 | case 'I': |
| 2566 | if (curs.y == 0) |
| 2567 | scroll(0, rows - 1, -1, TRUE); |
| 2568 | else if (curs.y > 0) |
| 2569 | curs.y--; |
| 2570 | fix_cpos; |
| 2571 | wrapnext = FALSE; |
| 2572 | break; |
| 2573 | case 'J': |
| 2574 | erase_lots(FALSE, FALSE, TRUE); |
| 2575 | disptop = 0; |
| 2576 | break; |
| 2577 | case 'K': |
| 2578 | erase_lots(TRUE, FALSE, TRUE); |
| 2579 | break; |
| 2580 | #if 0 |
| 2581 | case 'V': |
| 2582 | /* XXX Print cursor line */ |
| 2583 | break; |
| 2584 | case 'W': |
| 2585 | /* XXX Start controller mode */ |
| 2586 | break; |
| 2587 | case 'X': |
| 2588 | /* XXX Stop controller mode */ |
| 2589 | break; |
| 2590 | #endif |
| 2591 | case 'Y': |
| 2592 | termstate = VT52_Y1; |
| 2593 | break; |
| 2594 | case 'Z': |
| 2595 | ldisc_send("\033/Z", 3, 0); |
| 2596 | break; |
| 2597 | case '=': |
| 2598 | app_keypad_keys = TRUE; |
| 2599 | break; |
| 2600 | case '>': |
| 2601 | app_keypad_keys = FALSE; |
| 2602 | break; |
| 2603 | case '<': |
| 2604 | /* XXX This should switch to VT100 mode not current or default |
| 2605 | * VT mode. But this will only have effect in a VT220+ |
| 2606 | * emulation. |
| 2607 | */ |
| 2608 | vt52_mode = FALSE; |
| 2609 | blink_is_real = cfg.blinktext; |
| 2610 | break; |
| 2611 | #if 0 |
| 2612 | case '^': |
| 2613 | /* XXX Enter auto print mode */ |
| 2614 | break; |
| 2615 | case '_': |
| 2616 | /* XXX Exit auto print mode */ |
| 2617 | break; |
| 2618 | case ']': |
| 2619 | /* XXX Print screen */ |
| 2620 | break; |
| 2621 | #endif |
| 2622 | |
| 2623 | #ifdef VT52_PLUS |
| 2624 | case 'E': |
| 2625 | /* compatibility(ATARI) */ |
| 2626 | move(0, 0, 0); |
| 2627 | erase_lots(FALSE, FALSE, TRUE); |
| 2628 | disptop = 0; |
| 2629 | break; |
| 2630 | case 'L': |
| 2631 | /* compatibility(ATARI) */ |
| 2632 | if (curs.y <= marg_b) |
| 2633 | scroll(curs.y, marg_b, -1, FALSE); |
| 2634 | break; |
| 2635 | case 'M': |
| 2636 | /* compatibility(ATARI) */ |
| 2637 | if (curs.y <= marg_b) |
| 2638 | scroll(curs.y, marg_b, 1, TRUE); |
| 2639 | break; |
| 2640 | case 'b': |
| 2641 | /* compatibility(ATARI) */ |
| 2642 | termstate = VT52_FG; |
| 2643 | break; |
| 2644 | case 'c': |
| 2645 | /* compatibility(ATARI) */ |
| 2646 | termstate = VT52_BG; |
| 2647 | break; |
| 2648 | case 'd': |
| 2649 | /* compatibility(ATARI) */ |
| 2650 | erase_lots(FALSE, TRUE, FALSE); |
| 2651 | disptop = 0; |
| 2652 | break; |
| 2653 | case 'e': |
| 2654 | /* compatibility(ATARI) */ |
| 2655 | cursor_on = TRUE; |
| 2656 | break; |
| 2657 | case 'f': |
| 2658 | /* compatibility(ATARI) */ |
| 2659 | cursor_on = FALSE; |
| 2660 | break; |
| 2661 | /* case 'j': Save cursor position - broken on ST */ |
| 2662 | /* case 'k': Restore cursor position */ |
| 2663 | case 'l': |
| 2664 | /* compatibility(ATARI) */ |
| 2665 | erase_lots(TRUE, TRUE, TRUE); |
| 2666 | curs.x = 0; |
| 2667 | wrapnext = FALSE; |
| 2668 | fix_cpos; |
| 2669 | break; |
| 2670 | case 'o': |
| 2671 | /* compatibility(ATARI) */ |
| 2672 | erase_lots(TRUE, TRUE, FALSE); |
| 2673 | break; |
| 2674 | case 'p': |
| 2675 | /* compatibility(ATARI) */ |
| 2676 | curr_attr |= ATTR_REVERSE; |
| 2677 | break; |
| 2678 | case 'q': |
| 2679 | /* compatibility(ATARI) */ |
| 2680 | curr_attr &= ~ATTR_REVERSE; |
| 2681 | break; |
| 2682 | case 'v': /* wrap Autowrap on - Wyse style */ |
| 2683 | /* compatibility(ATARI) */ |
| 2684 | wrap = 1; |
| 2685 | break; |
| 2686 | case 'w': /* Autowrap off */ |
| 2687 | /* compatibility(ATARI) */ |
| 2688 | wrap = 0; |
| 2689 | break; |
| 2690 | |
| 2691 | case 'R': |
| 2692 | /* compatibility(OTHER) */ |
| 2693 | vt52_bold = FALSE; |
| 2694 | curr_attr = ATTR_DEFAULT; |
| 2695 | if (use_bce) |
| 2696 | erase_char = (' ' | ATTR_ASCII | |
| 2697 | (curr_attr & |
| 2698 | (ATTR_FGMASK | ATTR_BGMASK))); |
| 2699 | break; |
| 2700 | case 'S': |
| 2701 | /* compatibility(VI50) */ |
| 2702 | curr_attr |= ATTR_UNDER; |
| 2703 | break; |
| 2704 | case 'W': |
| 2705 | /* compatibility(VI50) */ |
| 2706 | curr_attr &= ~ATTR_UNDER; |
| 2707 | break; |
| 2708 | case 'U': |
| 2709 | /* compatibility(VI50) */ |
| 2710 | vt52_bold = TRUE; |
| 2711 | curr_attr |= ATTR_BOLD; |
| 2712 | break; |
| 2713 | case 'T': |
| 2714 | /* compatibility(VI50) */ |
| 2715 | vt52_bold = FALSE; |
| 2716 | curr_attr &= ~ATTR_BOLD; |
| 2717 | break; |
| 2718 | #endif |
| 2719 | } |
| 2720 | break; |
| 2721 | case VT52_Y1: |
| 2722 | termstate = VT52_Y2; |
| 2723 | move(curs.x, c - ' ', 0); |
| 2724 | break; |
| 2725 | case VT52_Y2: |
| 2726 | termstate = TOPLEVEL; |
| 2727 | move(c - ' ', curs.y, 0); |
| 2728 | break; |
| 2729 | |
| 2730 | #ifdef VT52_PLUS |
| 2731 | case VT52_FG: |
| 2732 | termstate = TOPLEVEL; |
| 2733 | curr_attr &= ~ATTR_FGMASK; |
| 2734 | curr_attr &= ~ATTR_BOLD; |
| 2735 | curr_attr |= (c & 0x7) << ATTR_FGSHIFT; |
| 2736 | if ((c & 0x8) || vt52_bold) |
| 2737 | curr_attr |= ATTR_BOLD; |
| 2738 | |
| 2739 | if (use_bce) |
| 2740 | erase_char = (' ' | ATTR_ASCII | |
| 2741 | (curr_attr & (ATTR_FGMASK | ATTR_BGMASK))); |
| 2742 | break; |
| 2743 | case VT52_BG: |
| 2744 | termstate = TOPLEVEL; |
| 2745 | curr_attr &= ~ATTR_BGMASK; |
| 2746 | curr_attr &= ~ATTR_BLINK; |
| 2747 | curr_attr |= (c & 0x7) << ATTR_BGSHIFT; |
| 2748 | |
| 2749 | /* Note: bold background */ |
| 2750 | if (c & 0x8) |
| 2751 | curr_attr |= ATTR_BLINK; |
| 2752 | |
| 2753 | if (use_bce) |
| 2754 | erase_char = (' ' | ATTR_ASCII | |
| 2755 | (curr_attr & (ATTR_FGMASK | ATTR_BGMASK))); |
| 2756 | break; |
| 2757 | #endif |
| 2758 | default: break; /* placate gcc warning about enum use */ |
| 2759 | } |
| 2760 | if (selstate != NO_SELECTION) { |
| 2761 | pos cursplus = curs; |
| 2762 | incpos(cursplus); |
| 2763 | check_selection(curs, cursplus); |
| 2764 | } |
| 2765 | } |
| 2766 | |
| 2767 | term_print_flush(); |
| 2768 | } |
| 2769 | |
| 2770 | #if 0 |
| 2771 | /* |
| 2772 | * Compare two lines to determine whether they are sufficiently |
| 2773 | * alike to scroll-optimise one to the other. Return the degree of |
| 2774 | * similarity. |
| 2775 | */ |
| 2776 | static int linecmp(unsigned long *a, unsigned long *b) |
| 2777 | { |
| 2778 | int i, n; |
| 2779 | |
| 2780 | for (i = n = 0; i < cols; i++) |
| 2781 | n += (*a++ == *b++); |
| 2782 | return n; |
| 2783 | } |
| 2784 | #endif |
| 2785 | |
| 2786 | /* |
| 2787 | * Given a context, update the window. Out of paranoia, we don't |
| 2788 | * allow WM_PAINT responses to do scrolling optimisations. |
| 2789 | */ |
| 2790 | static void do_paint(Context ctx, int may_optimise) |
| 2791 | { |
| 2792 | int i, j, our_curs_y; |
| 2793 | unsigned long rv, cursor; |
| 2794 | pos scrpos; |
| 2795 | char ch[1024]; |
| 2796 | long cursor_background = ERASE_CHAR; |
| 2797 | unsigned long ticks; |
| 2798 | |
| 2799 | /* |
| 2800 | * Check the visual bell state. |
| 2801 | */ |
| 2802 | if (in_vbell) { |
| 2803 | ticks = GetTickCount(); |
| 2804 | if (ticks - vbell_startpoint >= VBELL_TIMEOUT) |
| 2805 | in_vbell = FALSE; |
| 2806 | } |
| 2807 | |
| 2808 | rv = (!rvideo ^ !in_vbell ? ATTR_REVERSE : 0); |
| 2809 | |
| 2810 | /* Depends on: |
| 2811 | * screen array, disptop, scrtop, |
| 2812 | * selection, rv, |
| 2813 | * cfg.blinkpc, blink_is_real, tblinker, |
| 2814 | * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext |
| 2815 | */ |
| 2816 | |
| 2817 | /* Has the cursor position or type changed ? */ |
| 2818 | if (cursor_on) { |
| 2819 | if (has_focus) { |
| 2820 | if (blinker || !cfg.blink_cur) |
| 2821 | cursor = TATTR_ACTCURS; |
| 2822 | else |
| 2823 | cursor = 0; |
| 2824 | } else |
| 2825 | cursor = TATTR_PASCURS; |
| 2826 | if (wrapnext) |
| 2827 | cursor |= TATTR_RIGHTCURS; |
| 2828 | } else |
| 2829 | cursor = 0; |
| 2830 | our_curs_y = curs.y - disptop; |
| 2831 | |
| 2832 | if (dispcurs && (curstype != cursor || |
| 2833 | dispcurs != |
| 2834 | disptext + our_curs_y * (cols + 1) + curs.x)) { |
| 2835 | if (dispcurs > disptext && |
| 2836 | (*dispcurs & (CHAR_MASK | CSET_MASK)) == UCSWIDE) |
| 2837 | dispcurs[-1] |= ATTR_INVALID; |
| 2838 | if ( (dispcurs[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE) |
| 2839 | dispcurs[1] |= ATTR_INVALID; |
| 2840 | *dispcurs |= ATTR_INVALID; |
| 2841 | curstype = 0; |
| 2842 | } |
| 2843 | dispcurs = NULL; |
| 2844 | |
| 2845 | /* The normal screen data */ |
| 2846 | for (i = 0; i < rows; i++) { |
| 2847 | unsigned long *ldata; |
| 2848 | int lattr; |
| 2849 | int idx, dirty_line, dirty_run, selected; |
| 2850 | unsigned long attr = 0; |
| 2851 | int updated_line = 0; |
| 2852 | int start = 0; |
| 2853 | int ccount = 0; |
| 2854 | int last_run_dirty = 0; |
| 2855 | |
| 2856 | scrpos.y = i + disptop; |
| 2857 | ldata = lineptr(scrpos.y); |
| 2858 | lattr = (ldata[cols] & LATTR_MODE); |
| 2859 | |
| 2860 | idx = i * (cols + 1); |
| 2861 | dirty_run = dirty_line = (ldata[cols] != disptext[idx + cols]); |
| 2862 | disptext[idx + cols] = ldata[cols]; |
| 2863 | |
| 2864 | for (j = 0; j < cols; j++, idx++) { |
| 2865 | unsigned long tattr, tchar; |
| 2866 | unsigned long *d = ldata + j; |
| 2867 | int break_run; |
| 2868 | scrpos.x = j; |
| 2869 | |
| 2870 | tchar = (*d & (CHAR_MASK | CSET_MASK)); |
| 2871 | tattr = (*d & (ATTR_MASK ^ CSET_MASK)); |
| 2872 | switch (tchar & CSET_MASK) { |
| 2873 | case ATTR_ASCII: |
| 2874 | tchar = unitab_line[tchar & 0xFF]; |
| 2875 | break; |
| 2876 | case ATTR_LINEDRW: |
| 2877 | tchar = unitab_xterm[tchar & 0xFF]; |
| 2878 | break; |
| 2879 | case ATTR_SCOACS: |
| 2880 | tchar = unitab_scoacs[tchar&0xFF]; |
| 2881 | break; |
| 2882 | } |
| 2883 | tattr |= (tchar & CSET_MASK); |
| 2884 | tchar &= CHAR_MASK; |
| 2885 | if ((d[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE) |
| 2886 | tattr |= ATTR_WIDE; |
| 2887 | |
| 2888 | /* Video reversing things */ |
| 2889 | if (seltype == LEXICOGRAPHIC) |
| 2890 | selected = posle(selstart, scrpos) && poslt(scrpos, selend); |
| 2891 | else |
| 2892 | selected = posPle(selstart, scrpos) && posPlt(scrpos, selend); |
| 2893 | tattr = (tattr ^ rv |
| 2894 | ^ (selected ? ATTR_REVERSE : 0)); |
| 2895 | |
| 2896 | /* 'Real' blinking ? */ |
| 2897 | if (blink_is_real && (tattr & ATTR_BLINK)) { |
| 2898 | if (has_focus && tblinker) { |
| 2899 | tchar = ' '; |
| 2900 | tattr &= ~CSET_MASK; |
| 2901 | tattr |= ATTR_ACP; |
| 2902 | } |
| 2903 | tattr &= ~ATTR_BLINK; |
| 2904 | } |
| 2905 | |
| 2906 | /* |
| 2907 | * Check the font we'll _probably_ be using to see if |
| 2908 | * the character is wide when we don't want it to be. |
| 2909 | */ |
| 2910 | if ((tchar | tattr) != (disptext[idx]& ~ATTR_NARROW)) { |
| 2911 | if ((tattr & ATTR_WIDE) == 0 && |
| 2912 | CharWidth(ctx, (tchar | tattr) & 0xFFFF) == 2) |
| 2913 | tattr |= ATTR_NARROW; |
| 2914 | } else if (disptext[idx]&ATTR_NARROW) |
| 2915 | tattr |= ATTR_NARROW; |
| 2916 | |
| 2917 | /* Cursor here ? Save the 'background' */ |
| 2918 | if (i == our_curs_y && j == curs.x) { |
| 2919 | cursor_background = tattr | tchar; |
| 2920 | dispcurs = disptext + idx; |
| 2921 | } |
| 2922 | |
| 2923 | if ((disptext[idx] ^ tattr) & ATTR_WIDE) |
| 2924 | dirty_line = TRUE; |
| 2925 | |
| 2926 | break_run = (tattr != attr || j - start >= sizeof(ch)); |
| 2927 | |
| 2928 | /* Special hack for VT100 Linedraw glyphs */ |
| 2929 | if ((attr & CSET_MASK) == 0x2300 && tchar >= 0xBA |
| 2930 | && tchar <= 0xBD) break_run = TRUE; |
| 2931 | |
| 2932 | if (!dbcs_screenfont && !dirty_line) { |
| 2933 | if ((tchar | tattr) == disptext[idx]) |
| 2934 | break_run = TRUE; |
| 2935 | else if (!dirty_run && ccount == 1) |
| 2936 | break_run = TRUE; |
| 2937 | } |
| 2938 | |
| 2939 | if (break_run) { |
| 2940 | if ((dirty_run || last_run_dirty) && ccount > 0) { |
| 2941 | do_text(ctx, start, i, ch, ccount, attr, lattr); |
| 2942 | updated_line = 1; |
| 2943 | } |
| 2944 | start = j; |
| 2945 | ccount = 0; |
| 2946 | attr = tattr; |
| 2947 | if (dbcs_screenfont) |
| 2948 | last_run_dirty = dirty_run; |
| 2949 | dirty_run = dirty_line; |
| 2950 | } |
| 2951 | |
| 2952 | if ((tchar | tattr) != disptext[idx]) |
| 2953 | dirty_run = TRUE; |
| 2954 | ch[ccount++] = (char) tchar; |
| 2955 | disptext[idx] = tchar | tattr; |
| 2956 | |
| 2957 | /* If it's a wide char step along to the next one. */ |
| 2958 | if (tattr & ATTR_WIDE) { |
| 2959 | if (++j < cols) { |
| 2960 | idx++; |
| 2961 | d++; |
| 2962 | /* Cursor is here ? Ouch! */ |
| 2963 | if (i == our_curs_y && j == curs.x) { |
| 2964 | cursor_background = *d; |
| 2965 | dispcurs = disptext + idx; |
| 2966 | } |
| 2967 | if (disptext[idx] != *d) |
| 2968 | dirty_run = TRUE; |
| 2969 | disptext[idx] = *d; |
| 2970 | } |
| 2971 | } |
| 2972 | } |
| 2973 | if (dirty_run && ccount > 0) { |
| 2974 | do_text(ctx, start, i, ch, ccount, attr, lattr); |
| 2975 | updated_line = 1; |
| 2976 | } |
| 2977 | |
| 2978 | /* Cursor on this line ? (and changed) */ |
| 2979 | if (i == our_curs_y && (curstype != cursor || updated_line)) { |
| 2980 | ch[0] = (char) (cursor_background & CHAR_MASK); |
| 2981 | attr = (cursor_background & ATTR_MASK) | cursor; |
| 2982 | do_cursor(ctx, curs.x, i, ch, 1, attr, lattr); |
| 2983 | curstype = cursor; |
| 2984 | } |
| 2985 | } |
| 2986 | } |
| 2987 | |
| 2988 | /* |
| 2989 | * Flick the switch that says if blinking things should be shown or hidden. |
| 2990 | */ |
| 2991 | |
| 2992 | void term_blink(int flg) |
| 2993 | { |
| 2994 | static long last_blink = 0; |
| 2995 | static long last_tblink = 0; |
| 2996 | long now, blink_diff; |
| 2997 | |
| 2998 | now = GetTickCount(); |
| 2999 | blink_diff = now - last_tblink; |
| 3000 | |
| 3001 | /* Make sure the text blinks no more than 2Hz */ |
| 3002 | if (blink_diff < 0 || blink_diff > 450) { |
| 3003 | last_tblink = now; |
| 3004 | tblinker = !tblinker; |
| 3005 | } |
| 3006 | |
| 3007 | if (flg) { |
| 3008 | blinker = 1; |
| 3009 | last_blink = now; |
| 3010 | return; |
| 3011 | } |
| 3012 | |
| 3013 | blink_diff = now - last_blink; |
| 3014 | |
| 3015 | /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */ |
| 3016 | if (blink_diff >= 0 && blink_diff < (long) GetCaretBlinkTime()) |
| 3017 | return; |
| 3018 | |
| 3019 | last_blink = now; |
| 3020 | blinker = !blinker; |
| 3021 | } |
| 3022 | |
| 3023 | /* |
| 3024 | * Invalidate the whole screen so it will be repainted in full. |
| 3025 | */ |
| 3026 | void term_invalidate(void) |
| 3027 | { |
| 3028 | int i; |
| 3029 | |
| 3030 | for (i = 0; i < rows * (cols + 1); i++) |
| 3031 | disptext[i] = ATTR_INVALID; |
| 3032 | } |
| 3033 | |
| 3034 | /* |
| 3035 | * Paint the window in response to a WM_PAINT message. |
| 3036 | */ |
| 3037 | void term_paint(Context ctx, int left, int top, int right, int bottom) |
| 3038 | { |
| 3039 | int i, j; |
| 3040 | if (left < 0) left = 0; |
| 3041 | if (top < 0) top = 0; |
| 3042 | if (right >= cols) right = cols-1; |
| 3043 | if (bottom >= rows) bottom = rows-1; |
| 3044 | |
| 3045 | for (i = top; i <= bottom && i < rows; i++) { |
| 3046 | if ((disptext[i * (cols + 1) + cols] & LATTR_MODE) == LATTR_NORM) |
| 3047 | for (j = left; j <= right && j < cols; j++) |
| 3048 | disptext[i * (cols + 1) + j] = ATTR_INVALID; |
| 3049 | else |
| 3050 | for (j = left / 2; j <= right / 2 + 1 && j < cols; j++) |
| 3051 | disptext[i * (cols + 1) + j] = ATTR_INVALID; |
| 3052 | } |
| 3053 | |
| 3054 | /* This should happen soon enough, also for some reason it sometimes |
| 3055 | * fails to actually do anything when re-sizing ... painting the wrong |
| 3056 | * window perhaps ? |
| 3057 | */ |
| 3058 | if (alt_pressed) |
| 3059 | do_paint (ctx, FALSE); |
| 3060 | } |
| 3061 | |
| 3062 | /* |
| 3063 | * Attempt to scroll the scrollback. The second parameter gives the |
| 3064 | * position we want to scroll to; the first is +1 to denote that |
| 3065 | * this position is relative to the beginning of the scrollback, -1 |
| 3066 | * to denote it is relative to the end, and 0 to denote that it is |
| 3067 | * relative to the current position. |
| 3068 | */ |
| 3069 | void term_scroll(int rel, int where) |
| 3070 | { |
| 3071 | int sbtop = -count234(scrollback); |
| 3072 | |
| 3073 | disptop = (rel < 0 ? 0 : rel > 0 ? sbtop : disptop) + where; |
| 3074 | if (disptop < sbtop) |
| 3075 | disptop = sbtop; |
| 3076 | if (disptop > 0) |
| 3077 | disptop = 0; |
| 3078 | update_sbar(); |
| 3079 | term_update(); |
| 3080 | } |
| 3081 | |
| 3082 | static void clipme(pos top, pos bottom, int rect) |
| 3083 | { |
| 3084 | wchar_t *workbuf; |
| 3085 | wchar_t *wbptr; /* where next char goes within workbuf */ |
| 3086 | int old_top_x; |
| 3087 | int wblen = 0; /* workbuf len */ |
| 3088 | int buflen; /* amount of memory allocated to workbuf */ |
| 3089 | |
| 3090 | buflen = 5120; /* Default size */ |
| 3091 | workbuf = smalloc(buflen * sizeof(wchar_t)); |
| 3092 | wbptr = workbuf; /* start filling here */ |
| 3093 | old_top_x = top.x; /* needed for rect==1 */ |
| 3094 | |
| 3095 | while (poslt(top, bottom)) { |
| 3096 | int nl = FALSE; |
| 3097 | unsigned long *ldata = lineptr(top.y); |
| 3098 | pos nlpos; |
| 3099 | |
| 3100 | /* |
| 3101 | * nlpos will point at the maximum position on this line we |
| 3102 | * should copy up to. So we start it at the end of the |
| 3103 | * line... |
| 3104 | */ |
| 3105 | nlpos.y = top.y; |
| 3106 | nlpos.x = cols; |
| 3107 | |
| 3108 | /* |
| 3109 | * ... move it backwards if there's unused space at the end |
| 3110 | * of the line (and also set `nl' if this is the case, |
| 3111 | * because in normal selection mode this means we need a |
| 3112 | * newline at the end)... |
| 3113 | */ |
| 3114 | if (!(ldata[cols] & LATTR_WRAPPED)) { |
| 3115 | while (((ldata[nlpos.x - 1] & 0xFF) == 0x20 || |
| 3116 | (DIRECT_CHAR(ldata[nlpos.x - 1]) && |
| 3117 | (ldata[nlpos.x - 1] & CHAR_MASK) == 0x20)) |
| 3118 | && poslt(top, nlpos)) |
| 3119 | decpos(nlpos); |
| 3120 | if (poslt(nlpos, bottom)) |
| 3121 | nl = TRUE; |
| 3122 | } |
| 3123 | |
| 3124 | /* |
| 3125 | * ... and then clip it to the terminal x coordinate if |
| 3126 | * we're doing rectangular selection. (In this case we |
| 3127 | * still did the above, so that copying e.g. the right-hand |
| 3128 | * column from a table doesn't fill with spaces on the |
| 3129 | * right.) |
| 3130 | */ |
| 3131 | if (rect) { |
| 3132 | if (nlpos.x > bottom.x) |
| 3133 | nlpos.x = bottom.x; |
| 3134 | nl = (top.y < bottom.y); |
| 3135 | } |
| 3136 | |
| 3137 | while (poslt(top, bottom) && poslt(top, nlpos)) { |
| 3138 | #if 0 |
| 3139 | char cbuf[16], *p; |
| 3140 | sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF)); |
| 3141 | #else |
| 3142 | wchar_t cbuf[16], *p; |
| 3143 | int uc = (ldata[top.x] & 0xFFFF); |
| 3144 | int set, c; |
| 3145 | |
| 3146 | if (uc == UCSWIDE) { |
| 3147 | top.x++; |
| 3148 | continue; |
| 3149 | } |
| 3150 | |
| 3151 | switch (uc & CSET_MASK) { |
| 3152 | case ATTR_LINEDRW: |
| 3153 | if (!cfg.rawcnp) { |
| 3154 | uc = unitab_xterm[uc & 0xFF]; |
| 3155 | break; |
| 3156 | } |
| 3157 | case ATTR_ASCII: |
| 3158 | uc = unitab_line[uc & 0xFF]; |
| 3159 | break; |
| 3160 | case ATTR_SCOACS: |
| 3161 | uc = unitab_scoacs[uc&0xFF]; |
| 3162 | break; |
| 3163 | } |
| 3164 | switch (uc & CSET_MASK) { |
| 3165 | case ATTR_ACP: |
| 3166 | uc = unitab_font[uc & 0xFF]; |
| 3167 | break; |
| 3168 | case ATTR_OEMCP: |
| 3169 | uc = unitab_oemcp[uc & 0xFF]; |
| 3170 | break; |
| 3171 | } |
| 3172 | |
| 3173 | set = (uc & CSET_MASK); |
| 3174 | c = (uc & CHAR_MASK); |
| 3175 | cbuf[0] = uc; |
| 3176 | cbuf[1] = 0; |
| 3177 | |
| 3178 | if (DIRECT_FONT(uc)) { |
| 3179 | if (c >= ' ' && c != 0x7F) { |
| 3180 | unsigned char buf[4]; |
| 3181 | WCHAR wbuf[4]; |
| 3182 | int rv; |
| 3183 | if (IsDBCSLeadByteEx(font_codepage, (BYTE) c)) { |
| 3184 | buf[0] = c; |
| 3185 | buf[1] = (unsigned char) ldata[top.x + 1]; |
| 3186 | rv = MultiByteToWideChar(font_codepage, |
| 3187 | 0, buf, 2, wbuf, 4); |
| 3188 | top.x++; |
| 3189 | } else { |
| 3190 | buf[0] = c; |
| 3191 | rv = MultiByteToWideChar(font_codepage, |
| 3192 | 0, buf, 1, wbuf, 4); |
| 3193 | } |
| 3194 | |
| 3195 | if (rv > 0) { |
| 3196 | memcpy(cbuf, wbuf, rv * sizeof(wchar_t)); |
| 3197 | cbuf[rv] = 0; |
| 3198 | } |
| 3199 | } |
| 3200 | } |
| 3201 | #endif |
| 3202 | |
| 3203 | for (p = cbuf; *p; p++) { |
| 3204 | /* Enough overhead for trailing NL and nul */ |
| 3205 | if (wblen >= buflen - 16) { |
| 3206 | workbuf = |
| 3207 | srealloc(workbuf, |
| 3208 | sizeof(wchar_t) * (buflen += 100)); |
| 3209 | wbptr = workbuf + wblen; |
| 3210 | } |
| 3211 | wblen++; |
| 3212 | *wbptr++ = *p; |
| 3213 | } |
| 3214 | top.x++; |
| 3215 | } |
| 3216 | if (nl) { |
| 3217 | int i; |
| 3218 | for (i = 0; i < sel_nl_sz; i++) { |
| 3219 | wblen++; |
| 3220 | *wbptr++ = sel_nl[i]; |
| 3221 | } |
| 3222 | } |
| 3223 | top.y++; |
| 3224 | top.x = rect ? old_top_x : 0; |
| 3225 | } |
| 3226 | wblen++; |
| 3227 | *wbptr++ = 0; |
| 3228 | write_clip(workbuf, wblen, FALSE); /* transfer to clipboard */ |
| 3229 | if (buflen > 0) /* indicates we allocated this buffer */ |
| 3230 | sfree(workbuf); |
| 3231 | } |
| 3232 | |
| 3233 | void term_copyall(void) |
| 3234 | { |
| 3235 | pos top; |
| 3236 | top.y = -count234(scrollback); |
| 3237 | top.x = 0; |
| 3238 | clipme(top, curs, 0); |
| 3239 | } |
| 3240 | |
| 3241 | /* |
| 3242 | * The wordness array is mainly for deciding the disposition of the US-ASCII |
| 3243 | * characters. |
| 3244 | */ |
| 3245 | static int wordtype(int uc) |
| 3246 | { |
| 3247 | static struct { |
| 3248 | int start, end, ctype; |
| 3249 | } *wptr, ucs_words[] = { |
| 3250 | { |
| 3251 | 128, 160, 0}, { |
| 3252 | 161, 191, 1}, { |
| 3253 | 215, 215, 1}, { |
| 3254 | 247, 247, 1}, { |
| 3255 | 0x037e, 0x037e, 1}, /* Greek question mark */ |
| 3256 | { |
| 3257 | 0x0387, 0x0387, 1}, /* Greek ano teleia */ |
| 3258 | { |
| 3259 | 0x055a, 0x055f, 1}, /* Armenian punctuation */ |
| 3260 | { |
| 3261 | 0x0589, 0x0589, 1}, /* Armenian full stop */ |
| 3262 | { |
| 3263 | 0x0700, 0x070d, 1}, /* Syriac punctuation */ |
| 3264 | { |
| 3265 | 0x104a, 0x104f, 1}, /* Myanmar punctuation */ |
| 3266 | { |
| 3267 | 0x10fb, 0x10fb, 1}, /* Georgian punctuation */ |
| 3268 | { |
| 3269 | 0x1361, 0x1368, 1}, /* Ethiopic punctuation */ |
| 3270 | { |
| 3271 | 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */ |
| 3272 | { |
| 3273 | 0x17d4, 0x17dc, 1}, /* Khmer punctuation */ |
| 3274 | { |
| 3275 | 0x1800, 0x180a, 1}, /* Mongolian punctuation */ |
| 3276 | { |
| 3277 | 0x2000, 0x200a, 0}, /* Various spaces */ |
| 3278 | { |
| 3279 | 0x2070, 0x207f, 2}, /* superscript */ |
| 3280 | { |
| 3281 | 0x2080, 0x208f, 2}, /* subscript */ |
| 3282 | { |
| 3283 | 0x200b, 0x27ff, 1}, /* punctuation and symbols */ |
| 3284 | { |
| 3285 | 0x3000, 0x3000, 0}, /* ideographic space */ |
| 3286 | { |
| 3287 | 0x3001, 0x3020, 1}, /* ideographic punctuation */ |
| 3288 | { |
| 3289 | 0x303f, 0x309f, 3}, /* Hiragana */ |
| 3290 | { |
| 3291 | 0x30a0, 0x30ff, 3}, /* Katakana */ |
| 3292 | { |
| 3293 | 0x3300, 0x9fff, 3}, /* CJK Ideographs */ |
| 3294 | { |
| 3295 | 0xac00, 0xd7a3, 3}, /* Hangul Syllables */ |
| 3296 | { |
| 3297 | 0xf900, 0xfaff, 3}, /* CJK Ideographs */ |
| 3298 | { |
| 3299 | 0xfe30, 0xfe6b, 1}, /* punctuation forms */ |
| 3300 | { |
| 3301 | 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */ |
| 3302 | { |
| 3303 | 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */ |
| 3304 | { |
| 3305 | 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */ |
| 3306 | { |
| 3307 | 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */ |
| 3308 | { |
| 3309 | 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */ |
| 3310 | { |
| 3311 | 0, 0, 0} |
| 3312 | }; |
| 3313 | |
| 3314 | uc &= (CSET_MASK | CHAR_MASK); |
| 3315 | |
| 3316 | switch (uc & CSET_MASK) { |
| 3317 | case ATTR_LINEDRW: |
| 3318 | uc = unitab_xterm[uc & 0xFF]; |
| 3319 | break; |
| 3320 | case ATTR_ASCII: |
| 3321 | uc = unitab_line[uc & 0xFF]; |
| 3322 | break; |
| 3323 | case ATTR_SCOACS: |
| 3324 | uc = unitab_scoacs[uc&0xFF]; |
| 3325 | break; |
| 3326 | } |
| 3327 | switch (uc & CSET_MASK) { |
| 3328 | case ATTR_ACP: |
| 3329 | uc = unitab_font[uc & 0xFF]; |
| 3330 | break; |
| 3331 | case ATTR_OEMCP: |
| 3332 | uc = unitab_oemcp[uc & 0xFF]; |
| 3333 | break; |
| 3334 | } |
| 3335 | |
| 3336 | /* For DBCS font's I can't do anything usefull. Even this will sometimes |
| 3337 | * fail as there's such a thing as a double width space. :-( |
| 3338 | */ |
| 3339 | if (dbcs_screenfont && font_codepage == line_codepage) |
| 3340 | return (uc != ' '); |
| 3341 | |
| 3342 | if (uc < 0x80) |
| 3343 | return wordness[uc]; |
| 3344 | |
| 3345 | for (wptr = ucs_words; wptr->start; wptr++) { |
| 3346 | if (uc >= wptr->start && uc <= wptr->end) |
| 3347 | return wptr->ctype; |
| 3348 | } |
| 3349 | |
| 3350 | return 2; |
| 3351 | } |
| 3352 | |
| 3353 | /* |
| 3354 | * Spread the selection outwards according to the selection mode. |
| 3355 | */ |
| 3356 | static pos sel_spread_half(pos p, int dir) |
| 3357 | { |
| 3358 | unsigned long *ldata; |
| 3359 | short wvalue; |
| 3360 | int topy = -count234(scrollback); |
| 3361 | |
| 3362 | ldata = lineptr(p.y); |
| 3363 | |
| 3364 | switch (selmode) { |
| 3365 | case SM_CHAR: |
| 3366 | /* |
| 3367 | * In this mode, every character is a separate unit, except |
| 3368 | * for runs of spaces at the end of a non-wrapping line. |
| 3369 | */ |
| 3370 | if (!(ldata[cols] & LATTR_WRAPPED)) { |
| 3371 | unsigned long *q = ldata + cols; |
| 3372 | while (q > ldata && (q[-1] & CHAR_MASK) == 0x20) |
| 3373 | q--; |
| 3374 | if (q == ldata + cols) |
| 3375 | q--; |
| 3376 | if (p.x >= q - ldata) |
| 3377 | p.x = (dir == -1 ? q - ldata : cols - 1); |
| 3378 | } |
| 3379 | break; |
| 3380 | case SM_WORD: |
| 3381 | /* |
| 3382 | * In this mode, the units are maximal runs of characters |
| 3383 | * whose `wordness' has the same value. |
| 3384 | */ |
| 3385 | wvalue = wordtype(ldata[p.x]); |
| 3386 | if (dir == +1) { |
| 3387 | while (1) { |
| 3388 | if (p.x < cols-1) { |
| 3389 | if (wordtype(ldata[p.x + 1]) == wvalue) |
| 3390 | p.x++; |
| 3391 | else |
| 3392 | break; |
| 3393 | } else { |
| 3394 | if (ldata[cols] & LATTR_WRAPPED) { |
| 3395 | unsigned long *ldata2; |
| 3396 | ldata2 = lineptr(p.y+1); |
| 3397 | if (wordtype(ldata2[0]) == wvalue) { |
| 3398 | p.x = 0; |
| 3399 | p.y++; |
| 3400 | ldata = ldata2; |
| 3401 | } else |
| 3402 | break; |
| 3403 | } else |
| 3404 | break; |
| 3405 | } |
| 3406 | } |
| 3407 | } else { |
| 3408 | while (1) { |
| 3409 | if (p.x > 0) { |
| 3410 | if (wordtype(ldata[p.x - 1]) == wvalue) |
| 3411 | p.x--; |
| 3412 | else |
| 3413 | break; |
| 3414 | } else { |
| 3415 | unsigned long *ldata2; |
| 3416 | if (p.y <= topy) |
| 3417 | break; |
| 3418 | ldata2 = lineptr(p.y-1); |
| 3419 | if ((ldata2[cols] & LATTR_WRAPPED) && |
| 3420 | wordtype(ldata2[cols-1]) == wvalue) { |
| 3421 | p.x = cols-1; |
| 3422 | p.y--; |
| 3423 | ldata = ldata2; |
| 3424 | } else |
| 3425 | break; |
| 3426 | } |
| 3427 | } |
| 3428 | } |
| 3429 | break; |
| 3430 | case SM_LINE: |
| 3431 | /* |
| 3432 | * In this mode, every line is a unit. |
| 3433 | */ |
| 3434 | p.x = (dir == -1 ? 0 : cols - 1); |
| 3435 | break; |
| 3436 | } |
| 3437 | return p; |
| 3438 | } |
| 3439 | |
| 3440 | static void sel_spread(void) |
| 3441 | { |
| 3442 | if (seltype == LEXICOGRAPHIC) { |
| 3443 | selstart = sel_spread_half(selstart, -1); |
| 3444 | decpos(selend); |
| 3445 | selend = sel_spread_half(selend, +1); |
| 3446 | incpos(selend); |
| 3447 | } |
| 3448 | } |
| 3449 | |
| 3450 | void term_do_paste(void) |
| 3451 | { |
| 3452 | wchar_t *data; |
| 3453 | int len; |
| 3454 | |
| 3455 | get_clip(&data, &len); |
| 3456 | if (data) { |
| 3457 | wchar_t *p, *q; |
| 3458 | |
| 3459 | if (paste_buffer) |
| 3460 | sfree(paste_buffer); |
| 3461 | paste_pos = paste_hold = paste_len = 0; |
| 3462 | paste_buffer = smalloc(len * sizeof(wchar_t)); |
| 3463 | |
| 3464 | p = q = data; |
| 3465 | while (p < data + len) { |
| 3466 | while (p < data + len && |
| 3467 | !(p <= data + len - sel_nl_sz && |
| 3468 | !memcmp(p, sel_nl, sizeof(sel_nl)))) |
| 3469 | p++; |
| 3470 | |
| 3471 | { |
| 3472 | int i; |
| 3473 | for (i = 0; i < p - q; i++) { |
| 3474 | paste_buffer[paste_len++] = q[i]; |
| 3475 | } |
| 3476 | } |
| 3477 | |
| 3478 | if (p <= data + len - sel_nl_sz && |
| 3479 | !memcmp(p, sel_nl, sizeof(sel_nl))) { |
| 3480 | paste_buffer[paste_len++] = '\r'; |
| 3481 | p += sel_nl_sz; |
| 3482 | } |
| 3483 | q = p; |
| 3484 | } |
| 3485 | |
| 3486 | /* Assume a small paste will be OK in one go. */ |
| 3487 | if (paste_len < 256) { |
| 3488 | luni_send(paste_buffer, paste_len, 0); |
| 3489 | if (paste_buffer) |
| 3490 | sfree(paste_buffer); |
| 3491 | paste_buffer = 0; |
| 3492 | paste_pos = paste_hold = paste_len = 0; |
| 3493 | } |
| 3494 | } |
| 3495 | get_clip(NULL, NULL); |
| 3496 | } |
| 3497 | |
| 3498 | void term_mouse(Mouse_Button b, Mouse_Action a, int x, int y, |
| 3499 | int shift, int ctrl, int alt) |
| 3500 | { |
| 3501 | pos selpoint; |
| 3502 | unsigned long *ldata; |
| 3503 | int raw_mouse = (xterm_mouse && |
| 3504 | !cfg.no_mouse_rep && |
| 3505 | !(cfg.mouse_override && shift)); |
| 3506 | int default_seltype; |
| 3507 | |
| 3508 | if (y < 0) { |
| 3509 | y = 0; |
| 3510 | if (a == MA_DRAG && !raw_mouse) |
| 3511 | term_scroll(0, -1); |
| 3512 | } |
| 3513 | if (y >= rows) { |
| 3514 | y = rows - 1; |
| 3515 | if (a == MA_DRAG && !raw_mouse) |
| 3516 | term_scroll(0, +1); |
| 3517 | } |
| 3518 | if (x < 0) { |
| 3519 | if (y > 0) { |
| 3520 | x = cols - 1; |
| 3521 | y--; |
| 3522 | } else |
| 3523 | x = 0; |
| 3524 | } |
| 3525 | if (x >= cols) |
| 3526 | x = cols - 1; |
| 3527 | |
| 3528 | selpoint.y = y + disptop; |
| 3529 | selpoint.x = x; |
| 3530 | ldata = lineptr(selpoint.y); |
| 3531 | if ((ldata[cols] & LATTR_MODE) != LATTR_NORM) |
| 3532 | selpoint.x /= 2; |
| 3533 | |
| 3534 | if (raw_mouse) { |
| 3535 | int encstate = 0, r, c; |
| 3536 | char abuf[16]; |
| 3537 | static int is_down = 0; |
| 3538 | |
| 3539 | switch (b) { |
| 3540 | case MBT_LEFT: |
| 3541 | encstate = 0x20; /* left button down */ |
| 3542 | break; |
| 3543 | case MBT_MIDDLE: |
| 3544 | encstate = 0x21; |
| 3545 | break; |
| 3546 | case MBT_RIGHT: |
| 3547 | encstate = 0x22; |
| 3548 | break; |
| 3549 | case MBT_WHEEL_UP: |
| 3550 | encstate = 0x60; |
| 3551 | break; |
| 3552 | case MBT_WHEEL_DOWN: |
| 3553 | encstate = 0x61; |
| 3554 | break; |
| 3555 | default: break; /* placate gcc warning about enum use */ |
| 3556 | } |
| 3557 | switch (a) { |
| 3558 | case MA_DRAG: |
| 3559 | if (xterm_mouse == 1) |
| 3560 | return; |
| 3561 | encstate += 0x20; |
| 3562 | break; |
| 3563 | case MA_RELEASE: |
| 3564 | encstate = 0x23; |
| 3565 | is_down = 0; |
| 3566 | break; |
| 3567 | case MA_CLICK: |
| 3568 | if (is_down == b) |
| 3569 | return; |
| 3570 | is_down = b; |
| 3571 | break; |
| 3572 | default: break; /* placate gcc warning about enum use */ |
| 3573 | } |
| 3574 | if (shift) |
| 3575 | encstate += 0x04; |
| 3576 | if (ctrl) |
| 3577 | encstate += 0x10; |
| 3578 | r = y + 33; |
| 3579 | c = x + 33; |
| 3580 | |
| 3581 | sprintf(abuf, "\033[M%c%c%c", encstate, c, r); |
| 3582 | ldisc_send(abuf, 6, 0); |
| 3583 | return; |
| 3584 | } |
| 3585 | |
| 3586 | b = translate_button(b); |
| 3587 | |
| 3588 | /* |
| 3589 | * Set the selection type (rectangular or normal) at the start |
| 3590 | * of a selection attempt, from the state of Alt. |
| 3591 | */ |
| 3592 | if (!alt ^ !cfg.rect_select) |
| 3593 | default_seltype = RECTANGULAR; |
| 3594 | else |
| 3595 | default_seltype = LEXICOGRAPHIC; |
| 3596 | |
| 3597 | if (selstate == NO_SELECTION) { |
| 3598 | seltype = default_seltype; |
| 3599 | } |
| 3600 | |
| 3601 | if (b == MBT_SELECT && a == MA_CLICK) { |
| 3602 | deselect(); |
| 3603 | selstate = ABOUT_TO; |
| 3604 | seltype = default_seltype; |
| 3605 | selanchor = selpoint; |
| 3606 | selmode = SM_CHAR; |
| 3607 | } else if (b == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) { |
| 3608 | deselect(); |
| 3609 | selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); |
| 3610 | selstate = DRAGGING; |
| 3611 | selstart = selanchor = selpoint; |
| 3612 | selend = selstart; |
| 3613 | incpos(selend); |
| 3614 | sel_spread(); |
| 3615 | } else if ((b == MBT_SELECT && a == MA_DRAG) || |
| 3616 | (b == MBT_EXTEND && a != MA_RELEASE)) { |
| 3617 | if (selstate == ABOUT_TO && poseq(selanchor, selpoint)) |
| 3618 | return; |
| 3619 | if (b == MBT_EXTEND && a != MA_DRAG && selstate == SELECTED) { |
| 3620 | if (seltype == LEXICOGRAPHIC) { |
| 3621 | /* |
| 3622 | * For normal selection, we extend by moving |
| 3623 | * whichever end of the current selection is closer |
| 3624 | * to the mouse. |
| 3625 | */ |
| 3626 | if (posdiff(selpoint, selstart) < |
| 3627 | posdiff(selend, selstart) / 2) { |
| 3628 | selanchor = selend; |
| 3629 | decpos(selanchor); |
| 3630 | } else { |
| 3631 | selanchor = selstart; |
| 3632 | } |
| 3633 | } else { |
| 3634 | /* |
| 3635 | * For rectangular selection, we have a choice of |
| 3636 | * _four_ places to put selanchor and selpoint: the |
| 3637 | * four corners of the selection. |
| 3638 | */ |
| 3639 | if (2*selpoint.x < selstart.x + selend.x) |
| 3640 | selanchor.x = selend.x-1; |
| 3641 | else |
| 3642 | selanchor.x = selstart.x; |
| 3643 | |
| 3644 | if (2*selpoint.y < selstart.y + selend.y) |
| 3645 | selanchor.y = selend.y; |
| 3646 | else |
| 3647 | selanchor.y = selstart.y; |
| 3648 | } |
| 3649 | selstate = DRAGGING; |
| 3650 | } |
| 3651 | if (selstate != ABOUT_TO && selstate != DRAGGING) |
| 3652 | selanchor = selpoint; |
| 3653 | selstate = DRAGGING; |
| 3654 | if (seltype == LEXICOGRAPHIC) { |
| 3655 | /* |
| 3656 | * For normal selection, we set (selstart,selend) to |
| 3657 | * (selpoint,selanchor) in some order. |
| 3658 | */ |
| 3659 | if (poslt(selpoint, selanchor)) { |
| 3660 | selstart = selpoint; |
| 3661 | selend = selanchor; |
| 3662 | incpos(selend); |
| 3663 | } else { |
| 3664 | selstart = selanchor; |
| 3665 | selend = selpoint; |
| 3666 | incpos(selend); |
| 3667 | } |
| 3668 | } else { |
| 3669 | /* |
| 3670 | * For rectangular selection, we may need to |
| 3671 | * interchange x and y coordinates (if the user has |
| 3672 | * dragged in the -x and +y directions, or vice versa). |
| 3673 | */ |
| 3674 | selstart.x = min(selanchor.x, selpoint.x); |
| 3675 | selend.x = 1+max(selanchor.x, selpoint.x); |
| 3676 | selstart.y = min(selanchor.y, selpoint.y); |
| 3677 | selend.y = max(selanchor.y, selpoint.y); |
| 3678 | } |
| 3679 | sel_spread(); |
| 3680 | } else if ((b == MBT_SELECT || b == MBT_EXTEND) && a == MA_RELEASE) { |
| 3681 | if (selstate == DRAGGING) { |
| 3682 | /* |
| 3683 | * We've completed a selection. We now transfer the |
| 3684 | * data to the clipboard. |
| 3685 | */ |
| 3686 | clipme(selstart, selend, (seltype == RECTANGULAR)); |
| 3687 | selstate = SELECTED; |
| 3688 | } else |
| 3689 | selstate = NO_SELECTION; |
| 3690 | } else if (b == MBT_PASTE |
| 3691 | && (a == MA_CLICK || a == MA_2CLK || a == MA_3CLK)) { |
| 3692 | term_do_paste(); |
| 3693 | } |
| 3694 | |
| 3695 | term_update(); |
| 3696 | } |
| 3697 | |
| 3698 | void term_nopaste() |
| 3699 | { |
| 3700 | if (paste_len == 0) |
| 3701 | return; |
| 3702 | sfree(paste_buffer); |
| 3703 | paste_buffer = 0; |
| 3704 | paste_len = 0; |
| 3705 | } |
| 3706 | |
| 3707 | void term_paste() |
| 3708 | { |
| 3709 | static long last_paste = 0; |
| 3710 | long now, paste_diff; |
| 3711 | |
| 3712 | if (paste_len == 0) |
| 3713 | return; |
| 3714 | |
| 3715 | /* Don't wait forever to paste */ |
| 3716 | if (paste_hold) { |
| 3717 | now = GetTickCount(); |
| 3718 | paste_diff = now - last_paste; |
| 3719 | if (paste_diff >= 0 && paste_diff < 450) |
| 3720 | return; |
| 3721 | } |
| 3722 | paste_hold = 0; |
| 3723 | |
| 3724 | while (paste_pos < paste_len) { |
| 3725 | int n = 0; |
| 3726 | while (n + paste_pos < paste_len) { |
| 3727 | if (paste_buffer[paste_pos + n++] == '\r') |
| 3728 | break; |
| 3729 | } |
| 3730 | luni_send(paste_buffer + paste_pos, n, 0); |
| 3731 | paste_pos += n; |
| 3732 | |
| 3733 | if (paste_pos < paste_len) { |
| 3734 | paste_hold = 1; |
| 3735 | return; |
| 3736 | } |
| 3737 | } |
| 3738 | sfree(paste_buffer); |
| 3739 | paste_buffer = 0; |
| 3740 | paste_len = 0; |
| 3741 | } |
| 3742 | |
| 3743 | static void deselect(void) |
| 3744 | { |
| 3745 | selstate = NO_SELECTION; |
| 3746 | selstart.x = selstart.y = selend.x = selend.y = 0; |
| 3747 | } |
| 3748 | |
| 3749 | void term_deselect(void) |
| 3750 | { |
| 3751 | deselect(); |
| 3752 | term_update(); |
| 3753 | } |
| 3754 | |
| 3755 | int term_ldisc(int option) |
| 3756 | { |
| 3757 | if (option == LD_ECHO) |
| 3758 | return term_echoing; |
| 3759 | if (option == LD_EDIT) |
| 3760 | return term_editing; |
| 3761 | return FALSE; |
| 3762 | } |
| 3763 | |
| 3764 | /* |
| 3765 | * from_backend(), to get data from the backend for the terminal. |
| 3766 | */ |
| 3767 | int from_backend(int is_stderr, char *data, int len) |
| 3768 | { |
| 3769 | assert(len > 0); |
| 3770 | |
| 3771 | bufchain_add(&inbuf, data, len); |
| 3772 | |
| 3773 | /* |
| 3774 | * term_out() always completely empties inbuf. Therefore, |
| 3775 | * there's no reason at all to return anything other than zero |
| 3776 | * from this function, because there _can't_ be a question of |
| 3777 | * the remote side needing to wait until term_out() has cleared |
| 3778 | * a backlog. |
| 3779 | * |
| 3780 | * This is a slightly suboptimal way to deal with SSH2 - in |
| 3781 | * principle, the window mechanism would allow us to continue |
| 3782 | * to accept data on forwarded ports and X connections even |
| 3783 | * while the terminal processing was going slowly - but we |
| 3784 | * can't do the 100% right thing without moving the terminal |
| 3785 | * processing into a separate thread, and that might hurt |
| 3786 | * portability. So we manage stdout buffering the old SSH1 way: |
| 3787 | * if the terminal processing goes slowly, the whole SSH |
| 3788 | * connection stops accepting data until it's ready. |
| 3789 | * |
| 3790 | * In practice, I can't imagine this causing serious trouble. |
| 3791 | */ |
| 3792 | return 0; |
| 3793 | } |