Mercurial > vim
annotate src/os_msdos.c @ 8140:563c923b1584 v7.4.1364
commit https://github.com/vim/vim/commit/cf7164a088664961e7d70dd100c5874dc5ceb293
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Feb 20 13:55:06 2016 +0100
patch 7.4.1364
Problem: The Win 16 code is not maintained and unused.
Solution: Remove the Win 16 support.
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sat, 20 Feb 2016 14:00:06 +0100 |
| parents | cf744110897d |
| children |
| rev | line source |
|---|---|
| 7 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 2 * | |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * os_msdos.c | |
| 12 * | |
| 13 * MSDOS system-dependent routines. | |
| 14 * A cheap plastic imitation of the amiga dependent code. | |
| 15 * A lot in this file was made by Juergen Weigert (jw). | |
| 16 * | |
| 17 * DJGPP changes by Gert van Antwerpen | |
| 18 * Faster text screens by John Lange (jlange@zilker.net) | |
| 19 * Windows clipboard functionality added by David Kotchan (dk) | |
| 20 * | |
| 21 * Some functions are also used for Win16 (MS-Windows 3.1). | |
| 22 */ | |
| 23 | |
| 24 #include "vim.h" | |
| 25 | |
| 3927 | 26 /* cproto fails on missing include files */ |
| 27 #ifndef PROTO | |
| 28 # include <conio.h> | |
| 29 #endif | |
| 7 | 30 |
| 3927 | 31 #ifndef PROTO |
| 32 # include <bios.h> | |
| 33 # ifdef DJGPP | |
| 34 # include <dpmi.h> | |
| 35 # include <signal.h> | |
| 36 # include <sys/movedata.h> | |
| 37 # include <crt0.h> | |
| 38 # ifdef FEAT_CLIPBOARD | |
| 39 # include <sys/segments.h> | |
| 40 # endif | |
| 41 # else | |
| 42 # include <alloc.h> | |
| 7 | 43 # endif |
| 44 #endif | |
| 45 | |
| 46 #if defined(DJGPP) || defined(PROTO) | |
| 47 # define _cdecl /* DJGPP doesn't have this */ | |
| 48 #endif | |
| 49 | |
| 50 static int cbrk_pressed = FALSE; /* set by ctrl-break interrupt */ | |
| 51 static int ctrlc_pressed = FALSE; /* set when ctrl-C or ctrl-break detected */ | |
| 52 static int delayed_redraw = FALSE; /* set when ctrl-C detected */ | |
| 53 | |
| 54 static int bioskey_read = _NKEYBRD_READ; /* bioskey() argument: read key */ | |
| 55 static int bioskey_ready = _NKEYBRD_READY; /* bioskey() argument: key ready? */ | |
| 56 | |
| 57 #ifdef FEAT_MOUSE | |
| 58 static int mouse_avail = FALSE; /* mouse present */ | |
| 59 static int mouse_active; /* mouse enabled */ | |
| 60 static int mouse_hidden; /* mouse not shown */ | |
| 61 static int mouse_click = -1; /* mouse status */ | |
| 62 static int mouse_last_click = -1; /* previous status at click */ | |
| 1210 | 63 static int mouse_x = -1; /* mouse x coordinate */ |
| 64 static int mouse_y = -1; /* mouse y coordinate */ | |
| 7 | 65 static long mouse_click_time = 0; /* biostime() of last click */ |
| 66 static int mouse_click_count = 0; /* count for multi-clicks */ | |
| 67 static int mouse_click_x = 0; /* x of previous mouse click */ | |
| 68 static int mouse_click_y = 0; /* y of previous mouse click */ | |
| 69 static linenr_T mouse_topline = 0; /* w_topline at previous mouse click */ | |
| 70 #ifdef FEAT_DIFF | |
| 71 static int mouse_topfill = 0; /* w_topfill at previous mouse click */ | |
| 72 #endif | |
| 73 static int mouse_x_div = 8; /* column = x coord / mouse_x_div */ | |
| 74 static int mouse_y_div = 8; /* line = y coord / mouse_y_div */ | |
| 75 #endif | |
| 76 | |
| 77 #define BIOSTICK 55 /* biostime() increases one tick about | |
| 78 every 55 msec */ | |
| 79 | |
| 80 static int orig_attr = 0x0700; /* video attributes when starting */ | |
| 81 | |
| 82 static int S_iLeft = 0; /* Scroll window; these are 1 offset */ | |
| 83 static int S_iTop = 0; | |
| 84 static int S_iRight = 0; | |
| 85 static int S_iBottom = 0; | |
| 86 | |
| 87 /* | |
| 88 * Need to remember the values, because we set horizontal and vertical | |
| 89 * edges separately. | |
| 90 */ | |
| 91 static void | |
| 92 mywindow(int iLeft, int iTop, int iRight, int iBottom) | |
| 93 { | |
| 94 S_iLeft = iLeft; | |
| 95 S_iTop = iTop; | |
| 96 S_iRight = iRight; | |
| 97 S_iBottom = iBottom; | |
| 98 window(iLeft, iTop, iRight, iBottom); | |
| 99 } | |
| 100 | |
| 101 #ifdef DJGPP | |
| 102 /* | |
| 103 * For DJGPP, use our own functions for fast text screens. JML 1/18/98 | |
| 104 */ | |
| 105 | |
| 106 unsigned long S_ulScreenBase = 0xb8000; | |
| 107 unsigned short S_uiAttribute = 0; | |
| 108 int S_iCurrentRow = 0; /* These are 0 offset */ | |
| 109 int S_iCurrentColumn = 0; | |
| 110 short S_selVideo; /* Selector for DJGPP direct video transfers */ | |
| 111 | |
| 112 /* | |
| 113 * Use burst writes to improve mch_write speed - VJN 01/10/99 | |
| 114 */ | |
| 115 unsigned short S_linebuffer[8000]; /* <VN> enough for 160x50 */ | |
| 116 unsigned short S_blankbuffer[256]; /* <VN> max length of console line */ | |
| 117 unsigned short *S_linebufferpos = S_linebuffer; | |
| 118 int S_iBufferRow; | |
| 119 int S_iBufferColumn; | |
| 120 | |
| 121 static void | |
| 122 myflush(void) | |
| 123 { | |
| 124 if (S_linebufferpos != S_linebuffer) | |
| 125 { | |
| 126 _dosmemputw(S_linebuffer, (S_linebufferpos - S_linebuffer), | |
| 127 S_ulScreenBase | |
| 128 + S_iBufferRow * (Columns << 1) + (S_iBufferColumn << 1)); | |
| 129 S_linebufferpos = S_linebuffer; | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 static void | |
| 134 mygotoxy(int x, int y) | |
| 135 { | |
| 136 S_iCurrentRow = y - 1; | |
| 137 S_iCurrentColumn = x - 1; | |
| 138 } | |
| 139 | |
| 140 /* | |
| 141 * Set the system cursor to our cursor position. | |
| 142 */ | |
| 143 static void | |
| 144 set_sys_cursor(void) | |
| 145 { | |
| 146 if (term_console && full_screen) | |
| 147 { | |
| 148 myflush(); | |
| 149 gotoxy(S_iCurrentColumn + 1, S_iCurrentRow + 1); | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 static void | |
| 154 setblankbuffer(unsigned short uiValue) | |
| 155 { | |
| 156 int i; | |
| 157 static unsigned short olduiValue = 0; | |
| 158 | |
| 159 if (olduiValue != uiValue) | |
| 160 { | |
| 161 /* Load blank line buffer with spaces */ | |
| 162 for (i = 0; i < Columns; ++i) | |
| 163 S_blankbuffer[i] = uiValue; | |
| 164 olduiValue = uiValue; | |
| 165 } | |
| 166 } | |
| 167 | |
| 168 static void | |
| 169 myclreol(void) | |
| 170 { | |
| 171 /* Clear to end of line */ | |
| 172 setblankbuffer(S_uiAttribute | ' '); | |
| 173 _dosmemputw(S_blankbuffer, S_iRight - S_iCurrentColumn, S_ulScreenBase | |
| 174 + (S_iCurrentRow) * (Columns << 1) | |
| 175 + (S_iCurrentColumn << 1)); | |
| 176 } | |
| 177 | |
| 178 static void | |
| 179 myclrscr(void) | |
| 180 { | |
| 181 /* Clear whole screen */ | |
| 182 short iColumn; | |
| 183 int endpoint = (Rows * Columns) << 1; | |
| 184 | |
| 185 setblankbuffer(S_uiAttribute | ' '); | |
| 186 | |
| 187 for (iColumn = 0; iColumn < endpoint; iColumn += (Columns << 1)) | |
| 188 _dosmemputw(S_blankbuffer, Columns, S_ulScreenBase + iColumn); | |
| 189 } | |
| 190 | |
| 191 static void | |
| 192 mydelline(void) | |
| 193 { | |
| 194 short iRow, iColumn; | |
| 195 | |
| 196 iColumn = (S_iLeft - 1) << 1; | |
| 197 | |
| 198 /* Copy the lines underneath */ | |
| 199 for (iRow = S_iCurrentRow; iRow < S_iBottom - 1; iRow++) | |
| 200 movedata(S_selVideo, (((iRow + 1) * Columns) << 1) + iColumn, | |
| 201 S_selVideo, ((iRow * Columns) << 1) + iColumn, | |
| 202 (S_iRight - S_iLeft + 1) << 1); | |
| 203 | |
| 204 /* Clear the new row */ | |
| 205 setblankbuffer(S_uiAttribute | ' '); | |
| 206 | |
| 207 _dosmemputw(S_blankbuffer, (S_iRight - S_iLeft) + 1, S_ulScreenBase | |
| 208 + (S_iBottom - 1) * (Columns << 1) + iColumn); | |
| 209 } | |
| 210 | |
| 211 static void | |
| 212 myinsline(void) | |
| 213 { | |
| 214 short iRow, iColumn; | |
| 215 | |
| 216 iColumn = (S_iLeft - 1) << 1; | |
| 217 | |
| 218 /* Copy the lines underneath */ | |
| 219 for (iRow = S_iBottom - 1; iRow >= S_iTop; iRow--) | |
| 220 movedata(S_selVideo, (((iRow - 1) * Columns) << 1) + iColumn, | |
| 221 S_selVideo, ((iRow * Columns) << 1) + iColumn, | |
| 222 (S_iRight - S_iLeft + 1) << 1); | |
| 223 | |
| 224 /* Clear the new row */ | |
| 225 setblankbuffer(S_uiAttribute | ' '); | |
| 226 | |
| 227 _dosmemputw(S_blankbuffer, (S_iRight - S_iLeft) + 1, S_ulScreenBase | |
| 228 + (S_iTop - 1) * (Columns << 1) + iColumn); | |
| 229 } | |
| 230 | |
| 231 /* | |
| 232 * Scroll the screen one line up, clear the last line. | |
| 233 */ | |
| 234 static void | |
| 235 myscroll(void) | |
| 236 { | |
| 237 short iRow, iColumn; | |
| 238 | |
| 239 iColumn = (S_iLeft - 1) << 1; | |
| 240 | |
| 241 /* Copy the screen */ | |
| 242 for (iRow = S_iTop; iRow < S_iBottom; iRow++) | |
| 243 movedata(S_selVideo, ((iRow * Columns) << 1) + iColumn, | |
| 244 S_selVideo, (((iRow - 1) * Columns) << 1) + iColumn, | |
| 245 (S_iRight - S_iLeft + 1) << 1); | |
| 246 | |
| 247 /* Clear the bottom row */ | |
| 248 setblankbuffer(S_uiAttribute | ' '); | |
| 249 | |
| 250 _dosmemputw(S_blankbuffer, (S_iRight - S_iLeft) + 1, S_ulScreenBase | |
| 251 + (S_iBottom - 1) * (Columns << 1) + iColumn); | |
| 252 } | |
| 253 | |
| 254 static int | |
| 255 myputch(int iChar) | |
| 256 { | |
| 257 unsigned short uiValue; | |
| 258 | |
| 259 if (iChar == '\n') | |
| 260 { | |
| 261 myflush(); | |
| 262 if (S_iCurrentRow >= S_iBottom - S_iTop) | |
| 263 myscroll(); | |
| 264 else | |
| 265 { | |
| 266 S_iCurrentColumn = S_iLeft - 1; | |
| 267 S_iCurrentRow++; | |
| 268 } | |
| 269 } | |
| 270 else if (iChar == '\r') | |
| 271 { | |
| 272 myflush(); | |
| 273 S_iCurrentColumn = S_iLeft - 1; | |
| 274 } | |
| 275 else if (iChar == '\b') | |
| 276 { | |
| 277 myflush(); | |
| 278 if (S_iCurrentColumn >= S_iLeft) | |
| 279 S_iCurrentColumn--; | |
| 280 } | |
| 281 else if (iChar == 7) | |
| 282 { | |
| 283 sound(440); /* short beep */ | |
| 284 delay(200); | |
| 285 nosound(); | |
| 286 } | |
| 287 else | |
| 288 { | |
| 289 uiValue = S_uiAttribute | (unsigned char)iChar; | |
| 290 | |
| 291 /* | |
| 292 * Normal char - are we starting to buffer? | |
| 293 */ | |
| 294 if (S_linebufferpos == S_linebuffer) | |
| 295 { | |
| 296 S_iBufferColumn = S_iCurrentColumn; | |
| 297 S_iBufferRow = S_iCurrentRow; | |
| 298 } | |
| 299 | |
| 300 *S_linebufferpos++ = uiValue; | |
| 301 | |
| 302 S_iCurrentColumn++; | |
| 303 if (S_iCurrentColumn >= S_iRight && S_iCurrentRow >= S_iBottom - S_iTop) | |
| 304 { | |
| 305 myflush(); | |
| 306 myscroll(); | |
| 307 S_iCurrentColumn = S_iLeft - 1; | |
| 308 S_iCurrentRow++; | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 return 0; | |
| 313 } | |
| 314 | |
| 315 static void | |
| 316 mytextinit(struct text_info *pTextinfo) | |
| 317 { | |
| 318 S_selVideo = __dpmi_segment_to_descriptor(S_ulScreenBase >> 4); | |
| 319 S_uiAttribute = pTextinfo->normattr << 8; | |
| 320 } | |
| 321 | |
| 322 static void | |
| 323 get_screenbase(void) | |
| 324 { | |
| 325 static union REGS regs; | |
| 326 | |
| 327 /* old Hercules grafic card has different base address (Macewicz) */ | |
| 328 regs.h.ah = 0x0f; | |
| 329 (void)int86(0x10, ®s, ®s); /* int 10 0f */ | |
| 330 if (regs.h.al == 0x07) /* video mode 7 -- hercules mono */ | |
| 331 S_ulScreenBase = 0xb0000; | |
| 332 else | |
| 333 S_ulScreenBase = 0xb8000; | |
| 334 } | |
| 335 | |
| 336 static void | |
| 337 mytextattr(int iAttribute) | |
| 338 { | |
| 339 S_uiAttribute = (unsigned short)iAttribute << 8; | |
| 340 } | |
| 341 | |
| 342 static void | |
| 343 mynormvideo(void) | |
| 344 { | |
| 345 mytextattr(orig_attr); | |
| 346 } | |
| 347 | |
| 348 static void | |
| 349 mytextcolor(int iTextColor) | |
| 350 { | |
| 351 S_uiAttribute = (unsigned short)((S_uiAttribute & 0xf000) | |
| 352 | (unsigned short)iTextColor << 8); | |
| 353 } | |
| 354 | |
| 355 static void | |
| 356 mytextbackground(int iBkgColor) | |
| 357 { | |
| 358 S_uiAttribute = (unsigned short)((S_uiAttribute & 0x0f00) | |
| 359 | (unsigned short)(iBkgColor << 12)); | |
| 360 } | |
| 361 /* | |
| 362 * Getdigits: Get a number from a string and skip over it. | |
| 363 * Note: the argument is a pointer to a char_u pointer! | |
| 364 */ | |
| 365 | |
| 366 static long | |
|
7842
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
367 mygetdigits(char_u **pp) |
| 7 | 368 { |
| 369 char_u *p; | |
| 370 long retval = 0; | |
| 371 | |
| 372 p = *pp; | |
| 373 if (*p == '-') /* skip negative sign */ | |
| 374 ++p; | |
| 375 while (VIM_ISDIGIT(*p)) | |
| 376 { | |
| 377 retval = (retval * 10) + (*p - '0'); | |
| 378 ++p; | |
| 379 } | |
| 380 if (**pp == '-') /* process negative sign */ | |
| 381 retval = -retval; | |
| 382 | |
| 383 *pp = p; | |
| 384 return retval; | |
| 385 } | |
| 386 #else | |
| 387 # define mygotoxy gotoxy | |
| 388 # define myputch putch | |
| 389 # define myscroll scroll | |
| 390 # define mynormvideo normvideo | |
| 391 # define mytextattr textattr | |
| 392 # define mytextcolor textcolor | |
| 393 # define mytextbackground textbackground | |
| 394 # define mygetdigits getdigits | |
| 395 # define myclreol clreol | |
| 396 # define myclrscr clrscr | |
| 397 # define myinsline insline | |
| 398 # define mydelline delline | |
| 399 #endif | |
| 400 | |
| 401 static const struct | |
| 402 { | |
| 403 char_u scancode; | |
| 404 char_u metakey; | |
| 405 } altkey_table[] = | |
| 406 { | |
| 407 {0x1e, 0xe1}, /* a */ | |
| 408 {0x30, 0xe2}, /* b */ | |
| 409 {0x2e, 0xe3}, /* c */ | |
| 410 {0x20, 0xe4}, /* d */ | |
| 411 {0x12, 0xe5}, /* e */ | |
| 412 {0x21, 0xe6}, /* f */ | |
| 413 {0x22, 0xe7}, /* g */ | |
| 414 {0x23, 0xe8}, /* h */ | |
| 415 {0x17, 0xe9}, /* i */ | |
| 416 {0x24, 0xea}, /* j */ | |
| 417 {0x25, 0xeb}, /* k */ | |
| 418 {0x26, 0xec}, /* l */ | |
| 419 {0x32, 0xed}, /* m */ | |
| 420 {0x31, 0xee}, /* n */ | |
| 421 {0x18, 0xef}, /* o */ | |
| 422 {0x19, 0xf0}, /* p */ | |
| 423 {0x10, 0xf1}, /* q */ | |
| 424 {0x13, 0xf2}, /* r */ | |
| 425 {0x1f, 0xf3}, /* s */ | |
| 426 {0x14, 0xf4}, /* t */ | |
| 427 {0x16, 0xf5}, /* u */ | |
| 428 {0x2f, 0xf6}, /* v */ | |
| 429 {0x11, 0xf7}, /* w */ | |
| 430 {0x2d, 0xf8}, /* x */ | |
| 431 {0x15, 0xf9}, /* y */ | |
| 432 {0x2c, 0xfa}, /* z */ | |
| 433 {0x78, 0xb1}, /* 1 */ | |
| 434 {0x79, 0xb2}, /* 2 */ | |
| 435 {0x7a, 0xb3}, /* 3 */ | |
| 436 {0x7b, 0xb4}, /* 4 */ | |
| 437 {0x7c, 0xb5}, /* 5 */ | |
| 438 {0x7d, 0xb6}, /* 6 */ | |
| 439 {0x7e, 0xb7}, /* 7 */ | |
| 440 {0x7f, 0xb8}, /* 8 */ | |
| 441 {0x80, 0xb9}, /* 9 */ | |
| 442 {0x81, 0xb0}, /* 0 */ | |
| 443 }; | |
| 444 | |
| 445 /* | |
| 446 * Translate extended keycodes into meta-chars where applicable | |
| 447 */ | |
| 448 static int | |
| 449 translate_altkeys(int rawkey) | |
| 450 { | |
| 451 int i, c; | |
| 452 | |
| 453 if ((rawkey & 0xff) == 0) | |
| 454 { | |
| 455 c = (rawkey >> 8); | |
| 456 for (i = sizeof(altkey_table) / sizeof(altkey_table[0]); --i >= 0; ) | |
| 457 { | |
| 458 if (c == altkey_table[i].scancode) | |
| 459 return (int)altkey_table[i].metakey; | |
| 460 } | |
| 461 } | |
| 462 return rawkey; | |
| 463 } | |
| 464 | |
| 465 /* | |
| 1210 | 466 * Set normal fg/bg color, based on T_ME. Called when t_me has been set. |
| 7 | 467 */ |
| 468 void | |
|
7842
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
469 mch_set_normal_colors(void) |
| 7 | 470 { |
| 471 char_u *p; | |
| 472 int n; | |
| 473 | |
| 474 cterm_normal_fg_color = (orig_attr & 0xf) + 1; | |
| 475 cterm_normal_bg_color = ((orig_attr >> 4) & 0xf) + 1; | |
| 476 if (T_ME[0] == ESC && T_ME[1] == '|') | |
| 477 { | |
| 478 p = T_ME + 2; | |
| 479 n = getdigits(&p); | |
| 480 if (*p == 'm' && n > 0) | |
| 481 { | |
| 482 cterm_normal_fg_color = (n & 0xf) + 1; | |
| 483 cterm_normal_bg_color = ((n >> 4) & 0xf) + 1; | |
| 484 } | |
| 485 } | |
| 486 } | |
| 487 | |
| 488 #if defined(MCH_CURSOR_SHAPE) || defined(PROTO) | |
| 489 /* | |
| 490 * Save/restore the shape of the cursor. | |
| 491 * call with FALSE to save, TRUE to restore | |
| 492 */ | |
| 493 static void | |
| 494 mch_restore_cursor_shape(int restore) | |
| 495 { | |
| 496 static union REGS regs; | |
| 497 static int saved = FALSE; | |
| 498 | |
| 499 if (restore) | |
| 500 { | |
| 501 if (saved) | |
| 36 | 502 regs.h.ah = 0x01; /* Set Cursor */ |
| 7 | 503 else |
| 504 return; | |
| 505 } | |
| 506 else | |
| 507 { | |
| 36 | 508 regs.h.ah = 0x03; /* Get Cursor */ |
| 509 regs.h.bh = 0x00; /* Page */ | |
| 7 | 510 saved = TRUE; |
| 511 } | |
| 512 | |
| 513 (void)int86(0x10, ®s, ®s); | |
| 514 } | |
| 515 | |
| 516 /* | |
| 517 * Set the shape of the cursor. | |
| 518 * 'thickness' can be from 0 (thin) to 7 (block) | |
| 519 */ | |
| 520 static void | |
| 521 mch_set_cursor_shape(int thickness) | |
| 522 { | |
| 523 union REGS regs; | |
| 524 | |
| 36 | 525 regs.h.ch = 7 - thickness; /* Starting Line */ |
| 526 regs.h.cl = 7; /* Ending Line */ | |
| 527 regs.h.ah = 0x01; /* Set Cursor */ | |
| 7 | 528 (void)int86(0x10, ®s, ®s); |
| 529 } | |
| 530 | |
| 531 void | |
| 532 mch_update_cursor(void) | |
| 533 { | |
| 534 int idx; | |
| 535 int thickness; | |
| 536 | |
| 537 /* | |
| 538 * How the cursor is drawn depends on the current mode. | |
| 539 */ | |
| 540 idx = get_shape_idx(FALSE); | |
| 541 | |
| 542 if (shape_table[idx].shape == SHAPE_BLOCK) | |
| 543 thickness = 7; | |
| 544 else | |
| 545 thickness = (7 * shape_table[idx].percentage + 90) / 100; | |
| 546 mch_set_cursor_shape(thickness); | |
| 547 } | |
| 548 #endif | |
| 549 | |
| 550 /* | |
| 3634 | 551 * Return amount of memory currently available in Kbyte. |
| 7 | 552 */ |
| 553 long_u | |
| 554 mch_avail_mem(int special) | |
| 555 { | |
| 556 #ifdef DJGPP | |
| 3634 | 557 return _go32_dpmi_remaining_virtual_memory() >> 10; |
| 7 | 558 #else |
| 3634 | 559 return coreleft() >> 10; |
| 7 | 560 #endif |
| 561 } | |
| 562 | |
| 563 #ifdef FEAT_MOUSE | |
| 564 | |
| 565 /* | |
| 566 * Set area where mouse can be moved to: The whole screen. | |
| 567 * Rows and Columns must be valid when calling! | |
| 568 */ | |
| 569 static void | |
| 570 mouse_area(void) | |
| 571 { | |
| 572 union REGS regs; | |
| 573 | |
| 574 if (mouse_avail) | |
| 575 { | |
| 576 regs.x.cx = 0; /* mouse visible between cx and dx */ | |
| 577 regs.x.dx = Columns * mouse_x_div - 1; | |
| 578 regs.x.ax = 7; | |
| 579 (void)int86(0x33, ®s, ®s); | |
| 580 | |
| 581 regs.x.cx = 0; /* mouse visible between cx and dx */ | |
| 582 regs.x.dx = Rows * mouse_y_div - 1; | |
| 583 regs.x.ax = 8; | |
| 584 (void)int86(0x33, ®s, ®s); | |
| 585 } | |
| 586 } | |
| 587 | |
| 588 static void | |
| 589 show_mouse(int on) | |
| 590 { | |
| 591 static int was_on = FALSE; | |
| 592 union REGS regs; | |
| 593 | |
| 594 if (mouse_avail) | |
| 595 { | |
| 596 if (!mouse_active || mouse_hidden) | |
| 597 on = FALSE; | |
| 598 /* | |
| 599 * Careful: Each switch on must be compensated by exactly one switch | |
| 600 * off | |
| 601 */ | |
| 602 if ((on && !was_on) || (!on && was_on)) | |
| 603 { | |
| 604 was_on = on; | |
| 605 regs.x.ax = on ? 1 : 2; | |
| 606 int86(0x33, ®s, ®s); /* show mouse */ | |
| 607 if (on) | |
| 608 mouse_area(); | |
| 609 } | |
| 610 } | |
| 611 } | |
| 612 | |
| 613 #endif | |
| 614 | |
| 615 /* | |
| 616 * Version of kbhit() and getch() that use direct console I/O. | |
| 617 * This avoids trouble with CTRL-P and the like, and should work over a telnet | |
| 618 * connection (it works for Xvi). | |
| 619 */ | |
| 620 | |
| 621 static int cons_key = -1; | |
| 622 | |
| 623 /* | |
| 624 * Try to get one character directly from the console. | |
| 625 * If there is a key, it is stored in cons_key. | |
| 626 * Only call when cons_key is -1! | |
| 627 */ | |
| 628 static void | |
| 629 cons_getkey(void) | |
| 630 { | |
| 631 union REGS regs; | |
| 632 | |
| 633 /* call DOS function 6: Direct console I/O */ | |
| 634 regs.h.ah = 0x06; | |
| 635 regs.h.dl = 0xff; | |
| 636 (void)intdos(®s, ®s); | |
| 637 if ((regs.x.flags & 0x40) == 0) /* zero flag not set? */ | |
| 638 cons_key = (regs.h.al & 0xff); | |
| 639 } | |
| 640 | |
| 641 /* | |
| 642 * Return TRUE if a character is available. | |
| 643 */ | |
| 644 static int | |
| 645 cons_kbhit(void) | |
| 646 { | |
| 647 if (cons_key < 0) | |
| 648 cons_getkey(); | |
| 649 return (cons_key >= 0); | |
| 650 } | |
| 651 | |
| 652 /* | |
| 653 * Return a character from the console. | |
| 654 * Should only be called when vim_kbhit() returns TRUE. | |
| 655 */ | |
| 656 static int | |
| 657 cons_getch(void) | |
| 658 { | |
| 659 int c = -1; | |
| 660 | |
| 661 if (cons_key < 0) | |
| 662 cons_getkey(); | |
| 663 c = cons_key; | |
| 664 cons_key = -1; | |
| 665 return c; | |
| 666 } | |
| 667 | |
| 668 | |
| 669 #ifdef DJGPP | |
| 670 /* | |
| 671 * DJGPP provides a kbhit() function that goes to the BIOS instead of DOS. | |
| 672 * This doesn't work for terminals connected to a serial port. | |
| 673 * Redefine kbhit() here to make it work. | |
| 674 */ | |
| 675 static int | |
| 676 vim_kbhit(void) | |
| 677 { | |
| 678 union REGS regs; | |
| 679 | |
| 680 regs.h.ah = 0x0b; | |
| 681 (void)intdos(®s, ®s); | |
| 682 return regs.h.al; | |
| 683 } | |
| 684 | |
| 685 #ifdef kbhit | |
| 686 # undef kbhit /* might have been defined in conio.h */ | |
| 687 #endif | |
| 688 #define kbhit() vim_kbhit() | |
| 689 | |
| 690 #endif | |
| 691 | |
| 692 /* | |
| 693 * Simulate WaitForChar() by slowly polling with bioskey(1) or kbhit(). | |
| 694 * | |
| 695 * If Vim should work over the serial line after a 'ctty com1' we must use | |
| 696 * kbhit() and getch(). (jw) | |
| 697 * Usually kbhit() is not used, because then CTRL-C and CTRL-P | |
| 4352 | 698 * will be caught by DOS (mool). |
| 7 | 699 * |
| 700 * return TRUE if a character is available, FALSE otherwise | |
| 701 */ | |
| 702 | |
| 703 #define FOREVER 1999999999L | |
| 704 | |
| 705 static int | |
| 706 WaitForChar(long msec) | |
| 707 { | |
| 708 long starttime = 0; | |
| 709 | |
| 710 if (msec != 0) | |
| 711 starttime = biostime(0, 0L); | |
| 712 | |
| 713 for (;;) | |
| 714 { | |
| 715 #ifdef FEAT_MOUSE | |
| 716 long clicktime; | |
| 717 static int old_status = 0; | |
| 799 | 718 union REGS regs; |
| 719 int x, y; | |
| 7 | 720 |
| 721 if (mouse_avail && mouse_active && mouse_click < 0) | |
| 722 { | |
| 723 regs.x.ax = 3; | |
| 724 int86(0x33, ®s, ®s); /* check mouse status */ | |
| 725 /* only recognize button-down and button-up event */ | |
| 726 x = regs.x.cx / mouse_x_div; | |
| 727 y = regs.x.dx / mouse_y_div; | |
| 728 if ((old_status == 0) != (regs.x.bx == 0)) | |
| 729 { | |
| 730 if (old_status) /* button up */ | |
| 731 mouse_click = MOUSE_RELEASE; | |
| 732 else /* button down */ | |
| 733 { | |
| 734 /* | |
| 735 * Translate MSDOS mouse events to Vim mouse events. | |
| 736 * TODO: should handle middle mouse button, by pressing | |
| 737 * left and right at the same time. | |
| 738 */ | |
| 739 if (regs.x.bx & MSDOS_MOUSE_LEFT) | |
| 740 mouse_click = MOUSE_LEFT; | |
| 741 else if (regs.x.bx & MSDOS_MOUSE_RIGHT) | |
| 742 mouse_click = MOUSE_RIGHT; | |
| 743 else if (regs.x.bx & MSDOS_MOUSE_MIDDLE) | |
| 744 mouse_click = MOUSE_MIDDLE; | |
| 745 | |
| 746 /* | |
| 747 * Find out if this is a multi-click | |
| 748 */ | |
| 749 clicktime = biostime(0, 0L); | |
| 750 if (mouse_click_x == x && mouse_click_y == y | |
| 751 && mouse_topline == curwin->w_topline | |
| 752 #ifdef FEAT_DIFF | |
| 753 && mouse_topfill == curwin->w_topfill | |
| 754 #endif | |
| 755 && mouse_click_count != 4 | |
| 756 && mouse_click == mouse_last_click | |
| 757 && clicktime < mouse_click_time | |
| 758 + p_mouset / BIOSTICK) | |
| 759 ++mouse_click_count; | |
| 760 else | |
| 761 mouse_click_count = 1; | |
| 762 mouse_click_time = clicktime; | |
| 763 mouse_last_click = mouse_click; | |
| 764 mouse_click_x = x; | |
| 765 mouse_click_y = y; | |
| 766 mouse_topline = curwin->w_topline; | |
| 767 #ifdef FEAT_DIFF | |
| 768 mouse_topfill = curwin->w_topfill; | |
| 769 #endif | |
| 770 SET_NUM_MOUSE_CLICKS(mouse_click, mouse_click_count); | |
| 771 } | |
| 772 } | |
| 773 else if (old_status && (x != mouse_x || y != mouse_y)) | |
| 774 mouse_click = MOUSE_DRAG; | |
| 775 old_status = regs.x.bx; | |
| 776 if (mouse_hidden && mouse_x >= 0 && (mouse_x != x || mouse_y != y)) | |
| 777 { | |
| 778 mouse_hidden = FALSE; | |
| 779 show_mouse(TRUE); | |
| 780 } | |
| 781 mouse_x = x; | |
| 782 mouse_y = y; | |
| 783 } | |
| 784 #endif | |
| 785 | |
| 786 if ((p_consk ? cons_kbhit() | |
| 787 : p_biosk ? bioskey(bioskey_ready) : kbhit()) | |
| 788 || cbrk_pressed | |
| 789 #ifdef FEAT_MOUSE | |
| 790 || mouse_click >= 0 | |
| 791 #endif | |
| 792 ) | |
| 793 return TRUE; | |
| 794 /* | |
| 795 * Use biostime() to wait until our time is done. | |
| 796 * We busy-wait here. Unfortunately, delay() and usleep() have been | |
| 797 * reported to give problems with the original Windows 95. This is | |
| 798 * fixed in service pack 1, but not everybody installed that. | |
| 799 * The DJGPP implementation of usleep() uses a busy-wait loop too. | |
| 800 */ | |
| 801 if (msec == 0 || (msec != FOREVER | |
| 802 && biostime(0, 0L) > starttime + msec / BIOSTICK)) | |
| 803 break; | |
| 804 | |
| 805 #ifdef DJGPP | |
| 806 /* Yield the CPU to the next process. */ | |
| 807 __dpmi_yield(); | |
| 808 #endif | |
| 809 } | |
| 810 return FALSE; | |
| 811 } | |
| 812 | |
| 813 /* | |
| 814 * don't do anything for about "msec" msec | |
| 815 */ | |
| 816 void | |
| 817 mch_delay( | |
| 818 long msec, | |
| 819 int ignoreinput) | |
| 820 { | |
| 821 long starttime; | |
| 822 | |
| 823 if (ignoreinput) | |
| 824 { | |
| 825 /* | |
| 826 * We busy-wait here. Unfortunately, delay() and usleep() have been | |
| 827 * reported to give problems with the original Windows 95. This is | |
| 828 * fixed in service pack 1, but not everybody installed that. | |
| 829 */ | |
| 830 starttime = biostime(0, 0L); | |
| 831 while (biostime(0, 0L) < starttime + msec / BIOSTICK) | |
| 832 ; | |
| 833 } | |
| 834 else | |
| 835 WaitForChar(msec); | |
| 836 } | |
| 837 | |
| 838 /* | |
| 839 * mch_write(): write the output buffer to the screen | |
| 840 */ | |
| 841 void | |
| 842 mch_write( | |
| 843 char_u *s, | |
| 844 int len) | |
| 845 { | |
| 846 char_u *p; | |
| 847 int row, col; | |
| 848 | |
| 849 if (term_console && full_screen) | |
| 850 while (len--) | |
| 851 { | |
| 852 /* translate ESC | sequences into bios calls */ | |
| 853 if (p_wd) /* testing: wait a bit for each char */ | |
| 854 WaitForChar(p_wd); | |
| 855 | |
| 856 if (s[0] == '\n') | |
| 857 #ifdef DJGPP | |
| 858 { | |
| 859 myflush(); | |
| 860 S_iCurrentColumn = S_iLeft - 1; | |
| 861 } | |
| 862 #else | |
| 863 myputch('\r'); | |
| 864 #endif | |
| 865 else if (s[0] == ESC && len > 1 && s[1] == '|') | |
| 866 { | |
| 867 switch (s[2]) | |
| 868 { | |
| 869 #ifdef DJGPP | |
| 870 case 'B': ScreenVisualBell(); | |
| 871 goto got3; | |
| 872 #endif | |
| 873 case 'J': | |
| 874 #ifdef DJGPP | |
| 875 myflush(); | |
| 876 #endif | |
| 877 myclrscr(); | |
| 878 goto got3; | |
| 879 | |
| 880 case 'K': | |
| 881 #ifdef DJGPP | |
| 882 myflush(); | |
| 883 #endif | |
| 884 myclreol(); | |
| 885 goto got3; | |
| 886 | |
| 887 case 'L': | |
| 888 #ifdef DJGPP | |
| 889 myflush(); | |
| 890 #endif | |
| 891 myinsline(); | |
| 892 goto got3; | |
| 893 | |
| 894 case 'M': | |
| 895 #ifdef DJGPP | |
| 896 myflush(); | |
| 897 #endif | |
| 898 mydelline(); | |
| 899 got3: s += 3; | |
| 900 len -= 2; | |
| 901 continue; | |
| 902 | |
| 903 case '0': | |
| 904 case '1': | |
| 905 case '2': | |
| 906 case '3': | |
| 907 case '4': | |
| 908 case '5': | |
| 909 case '6': | |
| 910 case '7': | |
| 911 case '8': | |
| 912 case '9': p = s + 2; | |
| 913 row = mygetdigits(&p); /* no check for length! */ | |
| 914 if (p > s + len) | |
| 915 break; | |
| 916 if (*p == ';') | |
| 917 { | |
| 918 ++p; | |
| 919 col = mygetdigits(&p); /* no check for length! */ | |
| 920 if (p > s + len) | |
| 921 break; | |
| 922 if (*p == 'H' || *p == 'r' || *p == 'V') | |
| 923 { | |
| 924 #ifdef DJGPP | |
| 925 myflush(); | |
| 926 #endif | |
| 927 if (*p == 'H') /* set cursor position */ | |
| 928 mygotoxy(col, row); | |
| 929 else if (*p == 'V') | |
| 930 mywindow(row, S_iTop, col, S_iBottom); | |
| 931 else /* set scroll region */ | |
| 932 mywindow(S_iLeft, row, S_iRight, col); | |
| 933 len -= p - s; | |
| 934 s = p + 1; | |
| 935 continue; | |
| 936 } | |
| 937 } | |
| 938 else if (*p == 'm' || *p == 'f' || *p == 'b') | |
| 939 { | |
| 940 if (*p == 'm') /* set color */ | |
| 941 { | |
| 942 if (row == 0) | |
| 943 mynormvideo();/* reset color */ | |
| 944 else | |
| 945 mytextattr(row); | |
| 946 } | |
| 947 else if (*p == 'f') /* set foreground color */ | |
| 948 mytextcolor(row); | |
| 949 else /* set background color */ | |
| 950 mytextbackground(row); | |
| 951 | |
| 952 len -= p - s; | |
| 953 s = p + 1; | |
| 954 continue; | |
| 955 } | |
| 956 } | |
| 957 } | |
| 958 myputch(*s++); | |
| 959 } | |
| 960 else | |
| 961 { | |
| 962 write(1, s, (unsigned)len); | |
| 963 } | |
| 964 } | |
| 965 | |
| 966 /* | |
| 4352 | 967 * mch_inchar(): low level input function. |
| 7 | 968 * Get a characters from the keyboard. |
| 969 * If time == 0 do not wait for characters. | |
| 970 * If time == n wait a short time for characters. | |
| 971 * If time == -1 wait forever for characters. | |
| 972 * | |
| 973 * return the number of characters obtained | |
| 974 */ | |
| 975 int | |
| 976 mch_inchar( | |
| 977 char_u *buf, | |
| 978 int maxlen, | |
| 979 long time, | |
| 980 int tb_change_cnt) | |
| 981 { | |
| 982 int len = 0; | |
| 983 int c; | |
| 984 int tmp_c; | |
| 985 static int nextchar = 0; /* may keep character when maxlen == 1 */ | |
| 986 | |
| 987 /* | |
| 988 * if we got a ctrl-C when we were busy, there will be a "^C" somewhere | |
| 4352 | 989 * on the screen, so we need to redisplay it. |
| 7 | 990 */ |
| 991 if (delayed_redraw) | |
| 992 { | |
| 993 delayed_redraw = FALSE; | |
| 994 update_screen(CLEAR); | |
| 995 setcursor(); | |
| 996 out_flush(); | |
| 997 } | |
| 998 | |
| 999 /* return remaining character from last call */ | |
| 1000 if (nextchar) | |
| 1001 { | |
| 1002 *buf = nextchar; | |
| 1003 nextchar = 0; | |
| 1004 return 1; | |
| 1005 } | |
| 1006 | |
| 1007 #ifdef FEAT_MOUSE | |
| 1008 if (time != 0) | |
| 1009 show_mouse(TRUE); | |
| 1010 #endif | |
| 1011 #ifdef DJGPP | |
| 1012 set_sys_cursor(); | |
| 1013 #endif | |
| 1014 if (time >= 0) | |
| 1015 { | |
| 1016 if (WaitForChar(time) == 0) /* no character available */ | |
| 1017 { | |
| 1018 #ifdef FEAT_MOUSE | |
| 1019 show_mouse(FALSE); | |
| 1020 #endif | |
| 1021 return 0; | |
| 1022 } | |
| 1023 } | |
| 1024 else /* time == -1 */ | |
| 1025 { | |
| 1026 /* | |
| 1027 * If there is no character available within 2 seconds (default) | |
| 212 | 1028 * write the autoscript file to disk. Or cause the CursorHold event |
| 1029 * to be triggered. | |
| 7 | 1030 */ |
| 212 | 1031 if (WaitForChar(p_ut) == 0) |
| 7 | 1032 { |
| 1033 #ifdef FEAT_AUTOCMD | |
| 610 | 1034 if (trigger_cursorhold() && maxlen >= 3) |
| 7 | 1035 { |
| 212 | 1036 buf[0] = K_SPECIAL; |
| 1037 buf[1] = KS_EXTRA; | |
| 1038 buf[2] = (int)KE_CURSORHOLD; | |
| 1039 return 3; | |
| 7 | 1040 } |
| 1041 #endif | |
| 370 | 1042 before_blocking(); |
| 7 | 1043 } |
| 1044 } | |
| 1045 WaitForChar(FOREVER); /* wait for key or mouse click */ | |
| 1046 | |
| 1047 /* | |
| 1048 * Try to read as many characters as there are, until the buffer is full. | |
| 1049 */ | |
| 1050 /* | |
| 1051 * we will get at least one key. Get more if they are available | |
| 1052 * After a ctrl-break we have to read a 0 (!) from the buffer. | |
| 1053 * bioskey(1) will return 0 if no key is available and when a | |
| 1054 * ctrl-break was typed. When ctrl-break is hit, this does not always | |
| 1055 * implies a key hit. | |
| 1056 */ | |
| 1057 cbrk_pressed = FALSE; | |
| 1058 #ifdef FEAT_MOUSE | |
| 1059 if (mouse_click >= 0 && maxlen >= 5) | |
| 1060 { | |
| 1061 len = 5; | |
| 1062 *buf++ = ESC + 128; | |
| 1063 *buf++ = 'M'; | |
| 1064 *buf++ = mouse_click; | |
| 1065 *buf++ = mouse_x + '!'; | |
| 1066 *buf++ = mouse_y + '!'; | |
| 1067 mouse_click = -1; | |
| 1068 } | |
| 1069 else | |
| 1070 #endif | |
| 1071 { | |
| 1072 #ifdef FEAT_MOUSE | |
| 1073 mouse_hidden = TRUE; | |
| 1074 #endif | |
| 1075 if (p_biosk && !p_consk) | |
| 1076 { | |
| 1077 while ((len == 0 || bioskey(bioskey_ready)) && len < maxlen) | |
| 1078 { | |
| 1079 c = translate_altkeys(bioskey(bioskey_read)); /* get the key */ | |
| 1080 /* | |
| 1081 * translate a few things for inchar(): | |
| 1082 * 0x0000 == CTRL-break -> 3 (CTRL-C) | |
| 1083 * 0x0300 == CTRL-@ -> NUL | |
| 1084 * 0xnn00 == extended key code -> K_NUL, nn | |
| 1085 * 0xnne0 == enhanced keyboard -> K_NUL, nn | |
| 1086 * K_NUL -> K_NUL, 3 | |
| 1087 */ | |
| 1088 if (c == 0) | |
| 1089 c = 3; | |
| 1090 else if (c == 0x0300) | |
| 1091 c = NUL; | |
| 1092 else if ((c & 0xff) == 0 | |
| 1093 || c == K_NUL | |
| 1094 || c == 0x4e2b | |
| 1095 || c == 0x4a2d | |
| 1096 || c == 0x372a | |
| 1097 || ((c & 0xff) == 0xe0 && c != 0xe0)) | |
| 1098 { | |
| 1099 if (c == K_NUL) | |
| 1100 c = 3; | |
| 1101 else | |
| 1102 c >>= 8; | |
| 1103 *buf++ = K_NUL; | |
| 1104 ++len; | |
| 1105 } | |
| 1106 | |
| 1107 if (len < maxlen) | |
| 1108 { | |
| 1109 *buf++ = c; | |
| 1110 len++; | |
| 1111 #ifdef FEAT_MBYTE | |
| 1112 /* Convert from 'termencoding' to 'encoding'. Only | |
| 1113 * translate normal characters, not key codes. */ | |
| 1114 if (input_conv.vc_type != CONV_NONE | |
| 1115 && (len == 1 || buf[-2] != K_NUL)) | |
| 1116 len += convert_input(buf - 1, 1, maxlen - len + 1) - 1; | |
| 1117 #endif | |
| 1118 } | |
| 1119 else | |
| 1120 nextchar = c; | |
| 1121 } | |
| 1122 } | |
| 1123 else | |
| 1124 { | |
| 1125 while ((len == 0 || (p_consk ? cons_kbhit() : kbhit())) | |
| 1126 && len < maxlen) | |
| 1127 { | |
| 1128 switch (c = (p_consk ? cons_getch() : getch())) | |
| 1129 { | |
| 1130 case 0: | |
| 1131 /* NUL means that there is another character. | |
| 1132 * Get it immediately, because kbhit() doesn't always | |
| 1133 * return TRUE for the second character. | |
| 1134 */ | |
| 1135 if (p_consk) | |
| 1136 c = cons_getch(); | |
| 1137 else | |
| 1138 c = getch(); | |
| 1139 tmp_c = translate_altkeys(c << 8); | |
| 1140 if (tmp_c == (c << 8)) | |
| 1141 { | |
| 1142 *buf++ = K_NUL; | |
| 1143 ++len; | |
| 1144 } | |
| 1145 else | |
| 1146 c = tmp_c; | |
| 1147 break; | |
| 1148 case K_NUL: | |
| 1149 *buf++ = K_NUL; | |
| 1150 ++len; | |
| 1151 c = 3; | |
| 1152 break; | |
| 1153 case 3: | |
| 1154 cbrk_pressed = TRUE; | |
| 1155 /*FALLTHROUGH*/ | |
| 1156 default: | |
| 1157 break; | |
| 1158 } | |
| 1159 if (len < maxlen) | |
| 1160 { | |
| 1161 *buf++ = c; | |
| 1162 ++len; | |
| 1163 } | |
| 1164 else | |
| 1165 nextchar = c; | |
| 1166 } | |
| 1167 } | |
| 1168 } | |
| 1169 #ifdef FEAT_MOUSE | |
| 1170 show_mouse(FALSE); | |
| 1171 #endif | |
| 1172 | |
| 1173 beep_count = 0; /* may beep again now that we got some chars */ | |
| 1174 return len; | |
| 1175 } | |
| 1176 | |
| 1177 /* | |
| 1178 * return non-zero if a character is available | |
| 1179 */ | |
| 1180 int | |
| 1181 mch_char_avail(void) | |
| 1182 { | |
| 1183 return WaitForChar(0L); | |
| 1184 } | |
| 1185 | |
| 1186 #ifdef DJGPP | |
| 1187 # define INT_ARG int | |
| 1188 #else | |
| 1189 # define INT_ARG | |
| 1190 #endif | |
| 1191 | |
| 1192 /* | |
| 1193 * function for ctrl-break interrupt | |
| 1194 */ | |
| 1195 static void interrupt | |
| 1196 #ifdef DJGPP | |
| 1197 catch_cbrk(int a) | |
| 1198 #else | |
| 1199 catch_cbrk(void) | |
| 1200 #endif | |
| 1201 { | |
| 1202 cbrk_pressed = TRUE; | |
| 1203 ctrlc_pressed = TRUE; | |
| 1204 } | |
| 1205 | |
| 1206 #ifndef DJGPP | |
| 1207 /* | |
| 1208 * ctrl-break handler for DOS. Never called when a ctrl-break is typed, because | |
| 1209 * we catch interrupt 1b. If you type ctrl-C while Vim is waiting for a | |
| 1210 * character this function is not called. When a ctrl-C is typed while Vim is | |
| 1211 * busy this function may be called. By that time a ^C has been displayed on | |
| 1212 * the screen, so we have to redisplay the screen. We can't do that here, | |
| 1213 * because we may be called by DOS. The redraw is in mch_inchar(). | |
| 1214 */ | |
| 1215 static int _cdecl | |
| 1216 cbrk_handler(void) | |
| 1217 { | |
| 1218 delayed_redraw = TRUE; | |
| 1219 return 1; /* resume operation after ctrl-break */ | |
| 1220 } | |
| 1221 | |
| 1222 /* | |
| 1223 * function for critical error interrupt | |
| 1224 * For DOS 1 and 2 return 0 (Ignore). | |
| 1225 * For DOS 3 and later return 3 (Fail) | |
| 1226 */ | |
| 1227 static void interrupt | |
|
7842
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
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1228 catch_cint( |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1229 unsigned bp, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1230 unsigned di, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1231 unsigned si, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1232 unsigned ds, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1233 unsigned es, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1234 unsigned dx, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1235 unsigned cx, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1236 unsigned bx, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1237 unsigned ax) |
| 7 | 1238 { |
| 1239 ax = (ax & 0xff00); /* set AL to 0 */ | |
| 1240 if (_osmajor >= 3) | |
| 1241 ax |= 3; /* set AL to 3 */ | |
| 1242 } | |
| 1243 #endif | |
| 1244 | |
| 1245 /* | |
| 1246 * Set the interrupt vectors for use with Vim on or off. | |
| 1247 * on == TRUE means as used within Vim | |
| 1248 */ | |
| 1249 static void | |
| 1250 set_interrupts(int on) | |
| 1251 { | |
| 1252 static int saved_cbrk; | |
| 1253 #ifndef DJGPP | |
| 1254 static void interrupt (*old_cint)(); | |
| 1255 #endif | |
| 1256 static void interrupt (*old_cbrk)(INT_ARG); | |
| 1257 | |
| 1258 if (on) | |
| 1259 { | |
| 1260 saved_cbrk = getcbrk(); /* save old ctrl-break setting */ | |
| 1261 setcbrk(0); /* do not check for ctrl-break */ | |
| 1262 #ifdef DJGPP | |
| 1263 old_cbrk = signal(SIGINT, catch_cbrk); /* critical error interrupt */ | |
| 1264 #else | |
| 1265 old_cint = getvect(0x24); /* save old critical error interrupt */ | |
| 1266 setvect(0x24, catch_cint); /* install our critical error interrupt */ | |
| 1267 old_cbrk = getvect(0x1B); /* save old ctrl-break interrupt */ | |
| 1268 setvect(0x1B, catch_cbrk); /* install our ctrl-break interrupt */ | |
| 1269 ctrlbrk(cbrk_handler); /* vim's ctrl-break handler */ | |
| 1270 #endif | |
| 1271 if (term_console) | |
| 1272 out_str(T_ME); /* set colors */ | |
| 1273 } | |
| 1274 else | |
| 1275 { | |
| 1276 setcbrk(saved_cbrk); /* restore ctrl-break setting */ | |
| 1277 #ifdef DJGPP | |
| 1278 signal(SIGINT,old_cbrk); /* critical error interrupt */ | |
| 1279 #else | |
| 1280 setvect(0x24, old_cint); /* restore critical error interrupt */ | |
| 1281 setvect(0x1B, old_cbrk); /* restore ctrl-break interrupt */ | |
| 1282 #endif | |
| 1283 /* restore ctrl-break handler, how ??? */ | |
| 1284 if (term_console) | |
| 1285 mynormvideo(); /* restore screen colors */ | |
| 1286 } | |
| 1287 } | |
| 1288 | |
| 1289 /* | |
| 1290 * We have no job control, fake it by starting a new shell. | |
| 1291 */ | |
| 1292 void | |
| 1293 mch_suspend(void) | |
| 1294 { | |
| 1295 suspend_shell(); | |
| 1296 } | |
| 1297 | |
| 1298 extern int _fmode; | |
| 1299 | |
| 1300 /* | |
| 1301 * Prepare window for use by Vim. | |
| 1302 */ | |
| 1303 void | |
| 1304 mch_init(void) | |
| 1305 { | |
| 1306 union REGS regs; | |
| 1307 | |
| 1308 #if defined(DJGPP) && defined(FEAT_CLIPBOARD) | |
| 1309 __dpmi_regs dpmi_regs; | |
| 1310 #endif | |
| 1311 | |
| 1312 /* | |
| 1313 * Get the video attributes at the cursor. These will be used as the | |
| 1314 * default attributes. | |
| 1315 */ | |
| 1316 regs.h.ah = 0x08; | |
| 1317 regs.h.bh = 0x00; /* video page 0 */ | |
| 1318 int86(0x10, ®s, ®s); | |
| 1319 orig_attr = regs.h.ah; | |
| 1320 mynormvideo(); | |
| 1321 if (cterm_normal_fg_color == 0) | |
| 1322 cterm_normal_fg_color = (orig_attr & 0xf) + 1; | |
| 1323 if (cterm_normal_bg_color == 0) | |
| 1324 cterm_normal_bg_color = ((orig_attr >> 4) & 0xf) + 1; | |
| 1325 | |
| 1326 term_console = TRUE; /* assume using the console for the things here */ | |
| 1327 _fmode = O_BINARY; /* we do our own CR-LF translation */ | |
| 1328 out_flush(); | |
| 1329 set_interrupts(TRUE); /* catch interrupts */ | |
| 1330 | |
| 1331 #ifdef DJGPP | |
| 1332 /* | |
| 1333 * Use Long File Names by default, if $LFN not set. | |
| 1334 */ | |
| 1335 if (getenv("LFN") == NULL) | |
| 1336 putenv("LFN=y"); | |
| 1337 | |
| 1338 get_screenbase(); | |
| 1339 #endif | |
| 1340 | |
| 1341 #ifdef FEAT_MOUSE | |
| 1342 /* find out if a MS compatible mouse is available */ | |
| 1343 regs.x.ax = 0; | |
| 1344 (void)int86(0x33, ®s, ®s); | |
| 1345 mouse_avail = regs.x.ax; | |
| 1346 /* best guess for mouse coordinate computations */ | |
| 1347 mch_get_shellsize(); | |
| 1348 if (Columns <= 40) | |
| 1349 mouse_x_div = 16; | |
| 1350 if (Rows == 30) | |
| 1351 mouse_y_div = 16; | |
| 1352 #endif | |
| 1353 | |
| 1354 /* | |
| 1355 * Try switching to 16 colors for background, instead of 8 colors and | |
| 1356 * blinking. Does this always work? Can the old value be restored? | |
| 1357 */ | |
| 1358 regs.x.ax = 0x1003; | |
| 1359 regs.h.bl = 0x00; | |
| 1360 regs.h.bh = 0x00; | |
| 1361 int86(0x10, ®s, ®s); | |
| 1362 | |
| 1363 /* | |
| 1364 * Test if we have an enhanced AT keyboard. Write 0xFFFF to the keyboard | |
| 1365 * buffer and try to read it back. If we can't in 16 tries, it's an old | |
| 1366 * type XT keyboard. | |
| 1367 */ | |
| 1368 regs.h.ah = 0x05; | |
| 1369 regs.x.cx = 0xffff; | |
| 1370 int86(0x16, ®s, ®s); | |
| 1371 if (regs.h.al != 1) /* skip this when keyboard buffer is full */ | |
| 1372 { | |
| 1373 int i; | |
| 1374 | |
| 1375 for (i = 0; i < 16; ++i) | |
| 1376 { | |
| 1377 regs.h.ah = 0x10; | |
| 1378 int86(0x16, ®s, ®s); | |
| 1379 if (regs.x.ax == 0xffff) | |
| 1380 break; | |
| 1381 } | |
| 1382 if (i == 16) /* 0xffff not read, must be old keyboard */ | |
| 1383 { | |
| 1384 bioskey_read = 0; | |
| 1385 bioskey_ready = 1; | |
| 1386 } | |
| 1387 } | |
| 1388 | |
| 1389 #ifdef MCH_CURSOR_SHAPE | |
| 1390 /* Save the old cursor shape */ | |
| 1391 mch_restore_cursor_shape(FALSE); | |
| 1392 /* Initialise the cursor shape */ | |
| 1393 mch_update_cursor(); | |
| 1394 #endif | |
| 1395 | |
| 1396 #if defined(DJGPP) && defined(FEAT_CLIPBOARD) | |
| 1397 /* | |
| 1398 * Check to see if the Windows clipboard is available, ie. are we | |
| 1399 * running from a DOS session within Windows. Obviously, the Windows | |
| 1400 * clipboard will not be available if we're running under pure DOS. | |
| 1401 * | |
| 1402 * int 0x2f, AX = 0x1700 identifies the Windows version we're running | |
| 1403 * under. Upon return from the interrupt, if AX is unchanged, we're | |
| 1404 * running under pure DOS and no Windows clipboard is available. | |
| 1405 * | |
| 1406 * Remark: could use int86() here but __dpmi_int() is recommended in | |
| 1407 * the DJGPP docs, since int86() doesn't cover all available interrupts. | |
| 1408 */ | |
| 1409 dpmi_regs.x.ax = 0x1700; | |
| 1410 if (__dpmi_int(0x2f, &dpmi_regs) == -1) | |
| 1411 /* real-mode interrupt failed? */ | |
| 1412 dpmi_regs.x.ax = 0x1700; /* force failure */ | |
| 1413 | |
| 1414 if (dpmi_regs.x.ax == 0x1700) /* no change in AX? */ | |
| 1415 clip_init(FALSE); /* no clipboard available, too bad */ | |
| 1416 else /* else, running under Windows, OK */ | |
| 1417 clip_init(TRUE); /* clipboard is available */ | |
| 1418 #endif | |
| 1419 } | |
| 1420 | |
| 1421 int | |
| 1422 mch_check_win( | |
| 1423 int argc, | |
| 1424 char **argv) | |
| 1425 { | |
| 1426 /* store argv[0], may be used for $VIM */ | |
| 1427 if (*argv[0] != NUL) | |
| 1428 exe_name = FullName_save((char_u *)argv[0], FALSE); | |
| 1429 | |
| 1430 /* | |
| 1431 * Try the DOS search path. The executable may in | |
| 1432 * fact be called differently, so try this last. | |
| 1433 */ | |
| 1434 if (exe_name == NULL || *exe_name == NUL) | |
| 1435 exe_name = searchpath("vim.exe"); | |
| 1436 | |
| 1437 if (isatty(1)) | |
| 1438 return OK; | |
| 1439 return FAIL; | |
| 1440 } | |
| 1441 | |
| 1442 /* | |
| 1443 * Return TRUE if the input comes from a terminal, FALSE otherwise. | |
| 1444 */ | |
| 1445 int | |
| 1446 mch_input_isatty(void) | |
| 1447 { | |
| 1448 if (isatty(read_cmd_fd)) | |
| 1449 return TRUE; | |
| 1450 return FALSE; | |
| 1451 } | |
| 1452 | |
| 1453 #if defined(USE_FNAME_CASE) || defined(PROTO) | |
| 1454 /* | |
| 1455 * fname_case(): Set the case of the file name, if it already exists. | |
| 1456 * TODO: should expand short to long file names. Need to use DOS interrupts, | |
| 1457 * see DJGPP sources libc/dos/dir/findfirs.c. | |
| 1458 */ | |
| 1459 void | |
| 1460 fname_case(char_u *name, int len) | |
| 1461 { | |
| 1462 char_u *tail; | |
| 1463 struct ffblk fb; | |
| 1464 | |
| 1465 slash_adjust(name); | |
| 1466 if (findfirst(name, &fb, 0) == 0) | |
| 1467 { | |
| 1468 tail = gettail(name); | |
| 1469 if (len == 0 ? STRLEN(tail) == STRLEN(fb.ff_name) | |
| 1470 : (tail - name) + STRLEN(fb.ff_name) < len) | |
| 1471 STRCPY(tail, fb.ff_name); | |
| 1472 } | |
| 1473 } | |
| 1474 #endif | |
| 1475 | |
| 1476 /* | |
| 1477 * return process ID | |
| 1478 */ | |
| 1479 long | |
| 1480 mch_get_pid(void) | |
| 1481 { | |
| 1482 return (long)0; | |
| 1483 } | |
| 1484 | |
| 1485 /* | |
| 1486 * Change default drive (just like _chdrive of Borland C 3.1) | |
| 1487 */ | |
| 1488 static int | |
| 1489 change_drive(int drive) | |
| 1490 { | |
| 1491 union REGS regs; | |
| 1492 | |
| 1493 regs.h.ah = 0x0e; | |
| 1494 regs.h.dl = drive - 1; | |
| 1495 intdos(®s, ®s); /* set default drive */ | |
| 1496 regs.h.ah = 0x19; | |
| 1497 intdos(®s, ®s); /* get default drive */ | |
| 1498 if (regs.h.al == drive - 1) | |
| 1499 return 0; | |
| 1500 return -1; | |
| 1501 } | |
| 1502 | |
| 1503 /* | |
| 1504 * Get absolute file name into buffer 'buf' of length 'len' bytes. | |
| 1505 * All slashes are replaced with backslashes, to avoid trouble when comparing | |
| 1506 * file names. When 'shellslash' set do it the other way around. | |
| 1507 * | |
| 1508 * return FAIL for failure, OK otherwise | |
| 1509 */ | |
| 1510 int | |
| 1511 mch_FullName( | |
| 1512 char_u *fname, | |
| 1513 char_u *buf, | |
| 1514 int len, | |
| 1515 int force) | |
| 1516 { | |
| 1517 if (!force && mch_isFullName(fname)) /* already expanded */ | |
| 1518 { | |
| 418 | 1519 vim_strncpy(buf, fname, len - 1); |
| 7 | 1520 slash_adjust(buf); |
| 1521 return OK; | |
| 1522 } | |
| 1523 | |
| 1524 #ifdef __BORLANDC__ /* Only Borland C++ has this */ | |
| 1525 if (_fullpath((char *)buf, (char *)fname, len - 1) == NULL) | |
| 1526 return FAIL; | |
| 1527 return OK; | |
| 1528 #else /* almost the same as mch_FullName() in os_unix.c */ | |
| 1529 { | |
| 1530 # if 1 | |
| 1531 char_u fullpath[MAXPATHL]; | |
| 1532 | |
| 1533 if (!_truename(fname, fullpath)) | |
| 1534 return FAIL; | |
| 1535 slash_adjust(fullpath); /* Only needed when 'shellslash' set */ | |
| 418 | 1536 vim_strncpy(buf, fullpath, len - 1); |
| 7 | 1537 return OK; |
| 1538 | |
| 1539 # else /* Old code, to be deleted... */ | |
| 1540 int l; | |
| 1541 char_u olddir[MAXPATHL]; | |
| 1542 char_u *p, *q; | |
| 1543 int c; | |
| 1544 int retval = OK; | |
| 1545 | |
| 1546 *buf = 0; | |
| 1547 /* | |
| 1548 * change to the directory for a moment, | |
| 1549 * and then do the getwd() (and get back to where we were). | |
| 1550 * This will get the correct path name with "../" things. | |
| 1551 */ | |
| 1552 p = vim_strrchr(fname, '/'); | |
| 1553 q = vim_strrchr(fname, '\\'); | |
| 1554 if (q != NULL && (p == NULL || q > p)) | |
| 1555 p = q; | |
| 1556 q = vim_strrchr(fname, ':'); | |
| 1557 if (q != NULL && (p == NULL || q > p)) | |
| 1558 p = q; | |
| 1559 if (p != NULL) | |
| 1560 { | |
| 1561 if (getcwd(olddir, MAXPATHL) == NULL) | |
| 1562 { | |
| 1563 p = NULL; /* can't get current dir: don't chdir */ | |
| 1564 retval = FAIL; | |
| 1565 } | |
| 1566 else | |
| 1567 { | |
| 1568 if (p == fname) /* /fname */ | |
| 1569 q = p + 1; /* -> / */ | |
| 1570 else if (q + 1 == p) /* ... c:\foo */ | |
| 1571 q = p + 1; /* -> c:\ */ | |
| 1572 else /* but c:\foo\bar */ | |
| 1573 q = p; /* -> c:\foo */ | |
| 1574 | |
| 1575 c = *q; /* truncate at start of fname */ | |
| 1576 *q = NUL; | |
| 1577 # ifdef DJGPP | |
| 1578 STRCPY(buf, fname); | |
| 1579 slash_adjust(buf); /* needed when fname starts with \ */ | |
| 1580 if (mch_chdir(buf)) /* change to the directory */ | |
| 1581 # else | |
| 1582 if (mch_chdir(fname)) /* change to the directory */ | |
| 1583 # endif | |
| 1584 retval = FAIL; | |
| 1585 else | |
| 1586 { | |
| 1587 fname = q; | |
| 1588 if (c == psepc) /* if we cut the name at a */ | |
| 1589 fname++; /* '\', don't add it again */ | |
| 1590 } | |
| 1591 *q = c; | |
| 1592 } | |
| 1593 } | |
| 1594 if (getcwd(buf, len) == NULL) | |
| 1595 { | |
| 1596 retval = FAIL; | |
| 1597 *buf = NUL; | |
| 1598 } | |
| 1599 # ifdef USE_FNAME_CASE | |
| 1600 else | |
| 1601 { | |
| 1602 char_u *head; | |
| 1603 char_u *tail; | |
| 1604 struct ffblk fb; | |
| 1605 int c; | |
| 1606 int added; | |
| 1607 | |
| 1608 /* Apparently "longna~1" isn't expanded by getcwd(), at least not | |
| 1609 * for DJGPP. Expand it here. Have to do each dirname | |
| 1610 * separately. */ | |
| 1611 slash_adjust(buf); | |
| 1612 head = buf; | |
| 1613 if (isalpha(*head) && head[1] == ':') | |
| 1614 head += 2; /* skip "c:" */ | |
| 1615 while (*head != NUL) | |
| 1616 { | |
| 1617 /* Advance "head" to the start of a dirname and "tail" to just | |
| 1618 * after it. */ | |
| 1619 while (*head == '/' || *head == '\\') | |
| 1620 ++head; | |
| 1621 for (tail = head; *tail != NUL; ++tail) | |
| 1622 if (*tail == '/' || *tail == '\\') | |
| 1623 break; | |
| 1624 c = *tail; | |
| 1625 *tail = NUL; | |
| 1626 | |
| 1627 if (findfirst(buf, &fb, FA_DIREC) == 0) | |
| 1628 { | |
| 1629 added = STRLEN(fb.ff_name); | |
| 1630 if ((head - buf) + added + STRLEN(tail + 1) + 2 < len) | |
| 1631 { | |
| 1632 added -= (tail - head); | |
| 1633 if (added != 0) | |
| 1621 | 1634 STRMOVE(tail + 1 + added, tail + 1); |
| 7 | 1635 STRCPY(head, fb.ff_name); |
| 1636 tail += added; | |
| 1637 } | |
| 1638 } | |
| 1639 *tail = c; | |
| 1640 head = tail; | |
| 1641 } | |
| 1642 } | |
| 1643 # endif | |
| 1644 if (p != NULL) | |
| 1645 mch_chdir(olddir); | |
| 1646 /* | |
| 1647 * Concatenate the file name to the path. | |
| 1648 */ | |
| 1649 if (*fname != NUL) | |
| 1650 { | |
| 1651 l = STRLEN(buf); | |
| 1652 if (l > 0 && buf[l - 1] != '/' && buf[l - 1] != '\\') | |
| 1653 strcat(buf, pseps); | |
| 1654 strcat(buf, fname); | |
| 1655 } | |
| 1656 return retval; | |
| 1657 # endif | |
| 1658 } | |
| 1659 #endif | |
| 1660 } | |
| 1661 | |
| 1662 /* | |
| 1663 * Replace all slashes by backslashes. | |
| 1664 * This used to be the other way around, but MS-DOS sometimes has problems | |
| 1665 * with slashes (e.g. in a command name). We can't have mixed slashes and | |
| 1666 * backslashes, because comparing file names will not work correctly. The | |
| 1667 * commands that use a file name should try to avoid the need to type a | |
| 1668 * backslash twice. | |
| 1669 * When 'shellslash' set do it the other way around. | |
| 1670 */ | |
| 1671 void | |
| 1672 slash_adjust(char_u *p) | |
| 1673 { | |
| 1674 #ifdef OLD_DJGPP /* this seems to have been fixed in DJGPP 2.01 */ | |
| 1675 /* DJGPP can't handle a file name that starts with a backslash, and when it | |
| 1676 * starts with a slash there should be no backslashes */ | |
| 1677 if (*p == '\\' || *p == '/') | |
| 1678 while (*p) | |
| 1679 { | |
| 1680 if (*p == '\\') | |
| 1681 *p = '/'; | |
| 39 | 1682 mb_ptr_adv(p); |
| 7 | 1683 } |
| 1684 else | |
| 1685 #endif | |
| 1686 while (*p) | |
| 1687 { | |
| 1688 if (*p == psepcN) | |
| 1689 *p = psepc; | |
| 39 | 1690 mb_ptr_adv(p); |
| 7 | 1691 } |
| 1692 } | |
| 1693 | |
| 1694 /* | |
| 1695 * Return TRUE if "fname" does not depend on the current directory. | |
| 1696 */ | |
| 1697 int | |
| 1698 mch_isFullName(char_u *fname) | |
| 1699 { | |
| 1700 /* A name like "d:/foo" and "//server/share" is absolute */ | |
| 1701 return (fname[0] != NUL && fname[1] == ':' | |
| 1702 && (fname[2] == '/' || fname[2] == '\\')) | |
| 1703 || (fname[0] == fname[1] && (fname[0] == '/' || fname[0] == '\\')); | |
| 1704 } | |
| 1705 | |
| 1706 | |
| 1707 void | |
| 1708 mch_early_init(void) | |
| 1709 { | |
| 1710 } | |
| 1711 | |
| 1712 /* | |
| 1713 * Careful: mch_exit() may be called before mch_init()! | |
| 1714 */ | |
| 1715 void | |
| 1716 mch_exit(int r) | |
| 1717 { | |
| 1718 settmode(TMODE_COOK); | |
| 1719 stoptermcap(); | |
| 1720 set_interrupts(FALSE); /* restore interrupts */ | |
| 1721 #ifdef DJGPP | |
| 1722 set_sys_cursor(); | |
| 1723 #endif | |
| 1724 /* Somehow outputting CR-NL causes the original colors to be restored */ | |
| 1725 out_char('\r'); | |
| 1726 out_char('\n'); | |
| 1727 out_flush(); | |
| 1728 ml_close_all(TRUE); /* remove all memfiles */ | |
| 1729 #ifdef MCH_CURSOR_SHAPE | |
| 1730 mch_restore_cursor_shape(TRUE); | |
| 1731 #endif | |
| 1732 exit(r); | |
| 1733 } | |
| 1734 | |
| 1735 /* | |
| 1736 * set the tty in (raw) ? "raw" : "cooked" mode | |
| 1737 * Does not change the tty, as bioskey() and kbhit() work raw all the time. | |
| 1738 */ | |
| 1739 void | |
| 1740 mch_settmode(int tmode) | |
| 1741 { | |
| 1742 } | |
| 1743 | |
| 1744 #ifdef FEAT_MOUSE | |
| 1745 void | |
| 1746 mch_setmouse(int on) | |
| 1747 { | |
| 1748 mouse_active = on; | |
| 4352 | 1749 mouse_hidden = TRUE; /* don't show it until moved */ |
| 7 | 1750 } |
| 1751 #endif | |
| 1752 | |
| 1753 /* | |
| 1754 * set screen mode | |
| 1755 * return FAIL for failure, OK otherwise | |
| 1756 */ | |
| 1757 int | |
| 1758 mch_screenmode(char_u *arg) | |
| 1759 { | |
| 1760 int mode; | |
| 1761 int i; | |
| 1762 static char *(names[]) = {"BW40", "C40", "BW80", "C80", "MONO", "C4350"}; | |
| 1763 static int modes[] = { BW40, C40, BW80, C80, MONO, C4350}; | |
| 1764 | |
| 1765 mode = -1; | |
| 1766 if (VIM_ISDIGIT(*arg)) /* mode number given */ | |
| 1767 mode = atoi((char *)arg); | |
| 1768 else | |
| 1769 { | |
| 1770 for (i = 0; i < sizeof(names) / sizeof(char_u *); ++i) | |
| 1771 if (stricmp(names[i], (char *)arg) == 0) | |
| 1772 { | |
| 1773 mode = modes[i]; | |
| 1774 break; | |
| 1775 } | |
| 1776 } | |
| 1777 if (mode == -1) | |
| 1778 { | |
| 1779 EMSG("E362: Unsupported screen mode"); | |
| 1780 return FAIL; | |
| 1781 } | |
| 1782 textmode(mode); /* use Borland function */ | |
| 1783 #ifdef DJGPP | |
| 1784 /* base address may have changed */ | |
| 1785 get_screenbase(); | |
| 1786 #endif | |
| 1787 | |
| 1788 /* Screen colors may have changed. */ | |
| 1789 out_str(T_ME); | |
| 1790 | |
| 1791 #ifdef FEAT_MOUSE | |
| 1792 if (mode <= 1 || mode == 4 || mode == 5 || mode == 13 || mode == 0x13) | |
| 1793 mouse_x_div = 16; | |
| 1794 else | |
| 1795 mouse_x_div = 8; | |
| 1796 if (mode == 0x11 || mode == 0x12) | |
| 1797 mouse_y_div = 16; | |
| 1798 else if (mode == 0x10) | |
| 1799 mouse_y_div = 14; | |
| 1800 else | |
| 1801 mouse_y_div = 8; | |
| 1802 shell_resized(); | |
| 1803 #endif | |
| 1804 return OK; | |
| 1805 } | |
| 1806 | |
| 1807 /* | |
| 1808 * Structure used by Turbo-C/Borland-C to store video parameters. | |
| 1809 */ | |
| 1810 #ifndef DJGPP | |
| 1811 extern struct text_info _video; | |
| 1812 #endif | |
| 1813 | |
| 1814 /* | |
| 1815 * try to get the real window size | |
| 1816 * return FAIL for failure, OK otherwise | |
| 1817 */ | |
| 1818 int | |
| 1819 mch_get_shellsize(void) | |
| 1820 { | |
| 1821 struct text_info textinfo; | |
| 1822 | |
| 1823 /* | |
| 1824 * The screenwidth is returned by the BIOS OK. | |
| 1825 * The screenheight is in a location in the bios RAM, if the display is | |
| 1826 * EGA or VGA. | |
| 1827 */ | |
| 1828 if (!term_console) | |
| 1829 return FAIL; | |
| 1830 gettextinfo(&textinfo); | |
| 1831 Columns = textinfo.screenwidth; | |
| 1832 Rows = textinfo.screenheight; | |
| 1833 #ifndef DJGPP | |
| 1834 if (textinfo.currmode > 10) | |
| 1835 Rows = *(char far *)MK_FP(0x40, 0x84) + 1; | |
| 1836 #endif | |
| 1837 | |
| 1838 if (Columns < MIN_COLUMNS || Rows < MIN_LINES) | |
| 1839 { | |
| 1840 /* these values are overwritten by termcap size or default */ | |
| 1841 Columns = 80; | |
| 1842 Rows = 25; | |
| 1843 return FAIL; | |
| 1844 } | |
| 1845 #ifdef DJGPP | |
| 1846 mytextinit(&textinfo); /* Added by JML, 1/15/98 */ | |
| 1847 #endif | |
| 1848 | |
| 1849 return OK; | |
| 1850 } | |
| 1851 | |
| 1852 /* | |
| 1853 * Set the active window for delline/insline. | |
| 1854 */ | |
| 1855 static void | |
| 1856 set_window(void) | |
| 1857 { | |
| 1858 if (term_console) | |
| 1859 { | |
| 1860 #ifndef DJGPP | |
| 1861 _video.screenheight = Rows; | |
| 1862 #endif | |
| 1863 mywindow(1, 1, Columns, Rows); | |
| 1864 } | |
| 1865 screen_start(); | |
| 1866 } | |
| 1867 | |
| 1868 void | |
| 1869 mch_set_shellsize(void) | |
| 1870 { | |
| 1871 /* Should try to set the window size to Rows and Columns. | |
| 1872 * May involve switching display mode.... | |
| 1873 * We assume the user knows the size and just use it. */ | |
| 1874 } | |
| 1875 | |
| 1876 /* | |
| 1877 * Rows and/or Columns has changed. | |
| 1878 */ | |
| 1879 void | |
|
7842
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1880 mch_new_shellsize(void) |
| 7 | 1881 { |
| 1882 #ifdef FEAT_MOUSE | |
| 1883 /* best guess for mouse coordinate computations */ | |
| 1884 if (Columns <= 40) | |
| 1885 mouse_x_div = 16; | |
| 1886 if (Rows == 30) | |
| 1887 mouse_y_div = 16; | |
| 1888 #endif | |
| 1889 set_window(); | |
| 1890 #ifdef FEAT_MOUSE | |
| 1891 mouse_area(); /* set area where mouse can go */ | |
| 1892 #endif | |
| 1893 } | |
| 1894 | |
| 1895 #if defined(DJGPP) || defined(PROTO) | |
| 1896 /* | |
| 1897 * Check the number of Columns with a BIOS call. This avoids a crash of the | |
| 1898 * DOS console when 'columns' is set to a too large value. | |
| 1899 */ | |
| 1900 void | |
|
7842
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
1901 mch_check_columns(void) |
| 7 | 1902 { |
| 1903 static union REGS regs; | |
| 1904 | |
| 1905 regs.h.ah = 0x0f; | |
| 1906 (void)int86(0x10, ®s, ®s); | |
| 1907 if ((unsigned)Columns > (unsigned)regs.h.ah) | |
| 1908 Columns = (unsigned)regs.h.ah; | |
| 1909 } | |
| 1910 #endif | |
| 1911 | |
| 1912 /* | |
| 1913 * call shell, return FAIL for failure, OK otherwise | |
| 1914 * options: SHELL_*, see vim.h. | |
| 1915 */ | |
| 1916 int | |
| 1917 mch_call_shell( | |
| 1918 char_u *cmd, | |
| 1919 int options) | |
| 1920 { | |
| 1921 int x; | |
| 1922 int tmode = cur_tmode; | |
| 1923 #ifndef DJGPP | |
| 1924 char_u *newcmd; | |
| 1925 #endif | |
| 1926 | |
| 1927 out_flush(); | |
| 1928 #ifdef DJGPP | |
| 1929 set_sys_cursor(); | |
| 1930 #endif | |
| 1931 | |
| 1932 if (options & SHELL_COOKED) | |
| 1933 settmode(TMODE_COOK); /* set to normal mode */ | |
| 1934 set_interrupts(FALSE); /* restore interrupts */ | |
| 1935 | |
| 1936 #ifdef DJGPP | |
| 1937 /* ignore signals while external command is running */ | |
| 1938 signal(SIGINT, SIG_IGN); | |
| 1939 signal(SIGHUP, SIG_IGN); | |
| 1940 signal(SIGQUIT, SIG_IGN); | |
| 1941 signal(SIGTERM, SIG_IGN); | |
| 1942 #endif | |
| 1943 if (cmd == NULL) | |
| 1944 x = system((char *)p_sh); | |
| 1945 else | |
| 1946 { | |
| 1947 #ifdef DJGPP | |
| 1948 /* | |
| 1949 * Use 'shell' for system(). | |
| 1950 */ | |
| 1951 setenv("SHELL", (char *)p_sh, 1); | |
| 1952 x = system(cmd); | |
| 1953 #else | |
| 1954 /* we use "command" to start the shell, slow but easy */ | |
| 1955 newcmd = alloc(STRLEN(p_sh) + STRLEN(p_shcf) + STRLEN(cmd) + 3); | |
| 1956 if (newcmd == NULL) | |
| 1957 x = -1; | |
| 1958 else | |
| 1959 { | |
| 1960 sprintf((char *)newcmd, "%s %s %s", p_sh, p_shcf, cmd); | |
| 1961 x = system((char *)newcmd); | |
| 1962 vim_free(newcmd); | |
| 1963 } | |
| 1964 #endif | |
| 1965 } | |
| 1966 #ifdef DJGPP | |
| 1967 signal(SIGINT, SIG_DFL); | |
| 1968 signal(SIGHUP, SIG_DFL); | |
| 1969 signal(SIGQUIT, SIG_DFL); | |
| 1970 signal(SIGTERM, SIG_DFL); | |
| 1971 #endif | |
| 1972 if (tmode == TMODE_RAW) | |
| 1973 settmode(TMODE_RAW); /* set to raw mode */ | |
| 1974 set_interrupts(TRUE); /* catch interrupts */ | |
| 1975 | |
| 1976 if (x && !(options & SHELL_SILENT) && !emsg_silent) | |
| 1977 { | |
| 1978 MSG_PUTS("\nshell returned "); | |
| 1979 msg_outnum((long)x); | |
| 1980 msg_putchar('\n'); | |
| 1981 } | |
| 1982 | |
| 1983 return x; | |
| 1984 } | |
| 1985 | |
| 1986 /* | |
| 1987 * check for an "interrupt signal": CTRL-break or CTRL-C | |
| 1988 */ | |
| 1989 void | |
| 1990 mch_breakcheck(void) | |
| 1991 { | |
| 1992 if (ctrlc_pressed) | |
| 1993 { | |
| 1994 ctrlc_pressed = FALSE; | |
| 1995 got_int = TRUE; | |
| 1996 } | |
| 1997 } | |
| 1998 | |
| 1999 /* | |
| 2000 * Return TRUE if "p" contain a wildcard that can be expanded by | |
| 2001 * dos_expandpath(). | |
| 2002 */ | |
| 2003 int | |
| 2004 mch_has_exp_wildcard(char_u *p) | |
| 2005 { | |
| 39 | 2006 for ( ; *p; mb_ptr_adv(p)) |
| 7 | 2007 { |
| 2008 if (vim_strchr((char_u *)"?*[", *p) != NULL | |
| 2009 || (*p == '~' && p[1] != NUL)) | |
| 2010 return TRUE; | |
| 2011 } | |
| 2012 return FALSE; | |
| 2013 } | |
| 2014 | |
| 2015 /* | |
| 2016 * Return TRUE if "p" contain a wildcard or a "~1" kind of thing (could be a | |
| 2017 * shortened file name). | |
| 2018 */ | |
| 2019 int | |
| 2020 mch_has_wildcard(char_u *p) | |
| 2021 { | |
| 39 | 2022 for ( ; *p; mb_ptr_adv(p)) |
| 7 | 2023 { |
| 2024 if (vim_strchr((char_u *) | |
| 2025 # ifdef VIM_BACKTICK | |
| 2026 "?*$[`" | |
| 2027 # else | |
| 2028 "?*$[" | |
| 2029 # endif | |
| 2030 , *p) != NULL | |
| 2031 || (*p == '~' && p[1] != NUL)) | |
| 2032 return TRUE; | |
| 2033 } | |
| 2034 return FALSE; | |
| 2035 } | |
| 2036 | |
| 2037 /* | |
| 2038 * Change directory to "path". | |
| 2039 * The normal chdir() does not change the default drive. This one does. | |
| 2040 * Return 0 for success, -1 for failure. | |
| 2041 */ | |
| 2042 int | |
| 2043 mch_chdir(char *path) | |
| 2044 { | |
| 2045 if (path[0] == NUL) /* just checking... */ | |
| 2046 return 0; | |
| 1936 | 2047 if (p_verbose >= 5) |
| 2048 { | |
| 2049 verbose_enter(); | |
| 2050 smsg((char_u *)"chdir(%s)", path); | |
| 2051 verbose_leave(); | |
| 2052 } | |
| 7 | 2053 if (path[1] == ':') /* has a drive name */ |
| 2054 { | |
| 2055 if (change_drive(TOLOWER_ASC(path[0]) - 'a' + 1)) | |
| 2056 return -1; /* invalid drive name */ | |
| 2057 path += 2; | |
| 2058 } | |
| 2059 if (*path == NUL) /* drive name only */ | |
| 2060 return 0; | |
| 2061 return chdir(path); /* let the normal chdir() do the rest */ | |
| 2062 } | |
| 2063 | |
| 2064 #ifdef DJGPP | |
| 2065 /* | |
| 2066 * mch_rename() works around a bug in rename (aka MoveFile) in | |
| 2067 * Windows 95: rename("foo.bar", "foo.bar~") will generate a | |
| 2068 * file whose short file name is "FOO.BAR" (its long file name will | |
| 2069 * be correct: "foo.bar~"). Because a file can be accessed by | |
| 2070 * either its SFN or its LFN, "foo.bar" has effectively been | |
| 2071 * renamed to "foo.bar", which is not at all what was wanted. This | |
| 2072 * seems to happen only when renaming files with three-character | |
| 2073 * extensions by appending a suffix that does not include ".". | |
| 2074 * Windows NT gets it right, however, with an SFN of "FOO~1.BAR". | |
| 2075 * This works like mch_rename in os_win32.c, but is a bit simpler. | |
| 2076 * | |
| 2077 * Like rename(), returns 0 upon success, non-zero upon failure. | |
| 2078 * Should probably set errno appropriately when errors occur. | |
| 2079 */ | |
| 2080 | |
| 2081 int | |
| 2082 mch_rename(const char *OldFile, const char *NewFile) | |
| 2083 { | |
| 2084 char_u *TempFile; | |
| 2085 int retval; | |
| 2086 int fd; | |
| 2087 | |
| 2088 /* rename() works correctly without long file names, so use that */ | |
| 2089 if (!_USE_LFN) | |
| 2090 return rename(OldFile, NewFile); | |
| 2091 | |
| 2092 if ((TempFile = alloc((unsigned)(STRLEN(OldFile) + 13))) == NULL) | |
| 2093 return -1; | |
| 2094 | |
| 2095 STRCPY(TempFile, OldFile); | |
| 2096 STRCPY(gettail(TempFile), "axlqwqhy.ba~"); | |
| 2097 if (rename(OldFile, TempFile)) | |
| 2098 retval = -1; | |
| 2099 else | |
| 2100 { | |
| 2101 /* now create an empty file called OldFile; this prevents | |
| 2102 * the operating system using OldFile as an alias (SFN) | |
| 2103 * if we're renaming within the same directory. For example, | |
| 2104 * we're editing a file called filename.asc.txt by its SFN, | |
| 2105 * filena~1.txt. If we rename filena~1.txt to filena~1.txt~ | |
| 2106 * (i.e., we're making a backup while writing it), the SFN | |
| 2107 * for filena~1.txt~ will be filena~1.txt, by default, which | |
| 39 | 2108 * will cause all sorts of problems later in buf_write(). So, we |
| 7 | 2109 * create an empty file called filena~1.txt and the system will have |
| 2110 * to find some other SFN for filena~1.txt~, such as filena~2.txt | |
| 2111 */ | |
| 2112 if ((fd = open(OldFile, O_RDWR|O_CREAT|O_EXCL, 0444)) < 0) | |
| 2113 return -1; | |
| 2114 retval = rename(TempFile, NewFile); | |
| 2115 close(fd); | |
| 2116 mch_remove((char_u *)OldFile); | |
| 2117 | |
| 2118 /* If renaming to NewFile failed, rename TempFile back to OldFile, so | |
| 2119 * that it looks like nothing happened. */ | |
| 2120 if (retval) | |
| 2121 rename(TempFile, OldFile); | |
| 2122 } | |
| 2123 vim_free(TempFile); | |
| 2124 | |
| 2125 return retval; /* success */ | |
| 2126 } | |
| 2127 #endif | |
| 2128 | |
| 2129 #if defined(DJGPP) || defined(PROTO) | |
| 2130 /* | |
| 2131 * setlocale() for DJGPP with MS-DOS codepage support | |
| 2132 * Author: Cyril Slobin <slobin@fe.msk.ru> | |
| 2133 * | |
| 2134 * Scaled down a lot for use by Vim: Only support setlocale(LC_ALL, ""). | |
| 2135 */ | |
| 2136 | |
| 2137 #undef setlocale | |
| 2138 | |
| 3927 | 2139 #ifndef PROTO |
| 2140 # include <go32.h> | |
| 2141 # include <inlines/ctype.ha> | |
| 2142 #endif | |
| 7 | 2143 #include <locale.h> |
| 2144 | |
| 2145 #define UPCASE (__dj_ISALNUM | __dj_ISALPHA | __dj_ISGRAPH | __dj_ISPRINT | __dj_ISUPPER) | |
| 2146 #define LOCASE (__dj_ISALNUM | __dj_ISALPHA | __dj_ISGRAPH | __dj_ISPRINT | __dj_ISLOWER) | |
| 2147 | |
| 2148 char * | |
| 2149 djgpp_setlocale(void) | |
| 2150 { | |
| 2151 __dpmi_regs regs; | |
| 2152 struct { char id; unsigned short off, seg; } __attribute__ ((packed)) info; | |
| 2153 unsigned char buffer[0x82], lower, upper; | |
| 2154 int i; | |
| 2155 | |
| 2156 regs.x.ax = 0x6502; | |
| 2157 regs.x.bx = 0xffff; | |
| 2158 regs.x.dx = 0xffff; | |
| 2159 regs.x.cx = 5; | |
| 2160 regs.x.es = __tb >> 4; | |
| 2161 regs.x.di = __tb & 0xf; | |
| 2162 | |
| 2163 __dpmi_int(0x21, ®s); | |
| 2164 | |
| 2165 if (regs.x.flags & 1) | |
| 2166 return NULL; | |
| 2167 | |
| 2168 dosmemget(__tb, 5, &info); | |
| 2169 dosmemget((info.seg << 4) + info.off, 0x82, buffer); | |
| 2170 | |
| 2171 if (*(short *)buffer != 0x80) | |
| 2172 return NULL; | |
| 2173 | |
| 2174 /* Fix problem of underscores being replaced with y-umlaut. (Levin) */ | |
| 2175 if (buffer[26] == 0x5f) | |
| 2176 buffer[26] = 0x98; | |
| 2177 | |
| 2178 for (i = 0; i < 0x80; i++) | |
| 2179 { | |
| 2180 lower = i + 0x80; | |
| 2181 upper = (buffer+2)[i]; | |
| 2182 if (lower != upper) | |
| 2183 { | |
| 2184 __dj_ctype_flags[lower+1] = LOCASE; | |
| 2185 __dj_ctype_toupper[lower+1] = upper; | |
| 2186 if (__dj_ctype_flags[upper+1] == 0) | |
| 2187 __dj_ctype_flags[upper+1] = UPCASE; | |
| 2188 if (__dj_ctype_tolower[upper+1] == upper) | |
| 2189 __dj_ctype_tolower[upper+1] = lower; | |
| 2190 } | |
| 2191 } | |
| 2192 | |
| 2193 return "C"; | |
| 2194 } | |
| 2195 | |
| 2196 #if defined(FEAT_CLIPBOARD) || defined(PROTO) | |
| 2197 | |
| 2198 /* | |
| 2199 * Clipboard stuff, for cutting and pasting text to other windows. | |
| 2200 * | |
| 2201 * Implementation of DOS/Windows clipboard data transfer | |
| 2202 * by David Kotchan (dkotchan@sympatico.ca) | |
| 2203 */ | |
| 2204 | |
| 2205 #define CF_TEXT 0x01 /* Windows clipboard format: Windows (ANSI) text */ | |
| 2206 #define CF_OEMTEXT 0x07 /* Windows clipboard format: OEM (DOS) text */ | |
| 2207 #define CF_VIMCLIP 0x04 /* trick: SYLK clipboard format for VimClipboard */ | |
| 2208 | |
| 2209 static int Win16OpenClipboard(void); | |
| 2210 static int Win16CloseClipboard(void); | |
| 2211 static int Win16EmptyClipboard(void); | |
| 2212 static char_u *Win16GetClipboardData(int clip_data_format); | |
| 2213 static int Win16SetClipboardData(int clip_data_format, char_u *clip_data, int clip_data_size, int clip_data_type); | |
| 2214 | |
| 2215 /* | |
| 2216 * Make vim the owner of the current selection. Return OK upon success. | |
| 2217 */ | |
| 2218 int | |
| 2219 clip_mch_own_selection(VimClipboard *cbd) | |
| 2220 { | |
| 2221 /* | |
| 2222 * Never actually own the clipboard. If another application sets the | |
| 2223 * clipboard, we don't want to think that we still own it. | |
| 2224 */ | |
| 2225 return FAIL; | |
| 2226 } | |
| 2227 | |
| 2228 /* | |
| 2229 * Make vim NOT the owner of the current selection. | |
| 2230 */ | |
| 2231 void | |
| 2232 clip_mch_lose_selection(VimClipboard *cbd) | |
| 2233 { | |
| 2234 /* Nothing needs to be done here */ | |
| 2235 } | |
| 2236 | |
| 2237 /* | |
| 2238 * Read the Windows clipboard text and put it in Vim's clipboard register. | |
| 2239 */ | |
| 2240 void | |
| 2241 clip_mch_request_selection(VimClipboard *cbd) | |
| 2242 { | |
| 2896 | 2243 int type = MAUTO; |
| 7 | 2244 char_u *pAllocated = NULL; |
| 2245 char_u *pClipText = NULL; | |
| 2246 int clip_data_format = 0; | |
| 2247 | |
| 2248 if (Win16OpenClipboard()) | |
| 2249 { | |
| 2250 /* Check for Vim's own clipboard format first. The CF_VIMCLIP format | |
| 2251 * is just ordinary text (like CF_TEXT) except prepended by the | |
| 2252 * selection type (as a single character). Note that under DOS we | |
| 2253 * actually cannot define a custom CF_VIMCLIP clipboard format; we | |
| 2254 * use instead one of the existing Windows-defined formats, usually | |
| 2255 * "DIF" or "SYLK". See Win16GetClipboardData() for details. | |
| 2256 * | |
| 2257 * Note that Win16GetClipboardData() returns the address of the memory | |
| 2258 * block it allocated. This is not necessary the start of the | |
| 2259 * clipboard text data: there may be other bytes ahead of the | |
| 2260 * text (particularly for CF_VIMCLIP) which are used for data | |
| 2261 * management. So pClipText is not necessarily == pAllocated. | |
| 2262 */ | |
| 2263 | |
| 2264 if ((pAllocated = Win16GetClipboardData(CF_VIMCLIP)) != NULL) | |
| 2265 { | |
| 2266 clip_data_format = CF_VIMCLIP; | |
| 2267 pClipText = pAllocated; | |
| 2268 | |
| 2269 switch (*pClipText++) /* after ++, pClipText points to text */ | |
| 2270 { | |
| 2271 default: | |
| 2272 case 'L': type = MLINE; break; | |
| 2273 case 'C': type = MCHAR; break; | |
| 2274 case 'B': type = MBLOCK; break; | |
| 2275 } | |
| 2276 } | |
| 2277 | |
| 2278 /* Otherwise, check for the normal Windows text formats. There are | |
| 2279 * two of these: CF_TEXT (common) and CF_OEMTEXT (used for DOS | |
| 2280 * compatibility). Experiments show that, under the DOS/Windows | |
| 2281 * clipboard interface, writing CF_TEXT data to the clipboard | |
| 2282 * automatically creates a CF_OEMTEXT format as well. | |
| 2283 */ | |
| 2284 | |
| 2285 else if ((pAllocated = Win16GetClipboardData(CF_TEXT)) != NULL) | |
| 2286 { | |
| 2287 clip_data_format = CF_TEXT; | |
| 2288 pClipText = pAllocated; | |
| 2289 } | |
| 2290 | |
| 2291 else if ((pAllocated = Win16GetClipboardData(CF_OEMTEXT)) != NULL) | |
| 2292 { | |
| 2293 clip_data_format = CF_OEMTEXT; | |
| 2294 pClipText = pAllocated; | |
| 2295 } | |
| 2296 | |
| 2297 /* Did we get anything? */ | |
| 2298 | |
| 2299 if (pClipText != NULL) | |
| 2300 { | |
| 2301 char_u *pDest; | |
| 2302 char_u *pStart; | |
| 2303 char_u *pEnd; | |
| 2304 | |
| 2305 long_u clip_data_size = 0; | |
| 2306 | |
| 2307 /* The Windows clipboard normally stores its text lines terminated | |
| 2308 * by <CR><NL>. But Vim uses only <NL>, so translate the <CR><NL> | |
| 2309 * into <NL>. Also, watch for possible null bytes at the end of | |
| 2310 * pClipText. These are padding added by "get_clipboard_data" | |
| 2311 * (int 0x2f, AX= 0x1705) in order to round the data size up to the | |
| 2312 * next multiple of 32 bytes. See Win16GetClipboardData() for | |
| 2313 * details. | |
| 2314 */ | |
| 2315 | |
| 2316 pDest = strstr( pClipText, "\r\n" ); /* find first <CR><NL> */ | |
| 2317 | |
| 2318 if (pDest != NULL) /* found one? */ | |
| 2319 { | |
| 2320 pStart = pDest + 1; /* points to <NL> after <CR> */ | |
| 2321 pEnd = strstr( pStart, "\r\n" );/* find next <CR><NL> */ | |
| 2322 | |
| 2323 while (pEnd != NULL) /* found one? */ | |
| 2324 { | |
| 2325 memmove(pDest, pStart, (long)(pEnd - pStart)); | |
| 2326 /* exclude <CR> */ | |
| 2327 pDest += (long)(pEnd - pStart); /* new destination */ | |
| 2328 pStart = pEnd + 1; /* new starting point */ | |
| 2329 pEnd = strstr(pStart, "\r\n"); /* find next <CR><NL> */ | |
| 2330 } | |
| 2331 | |
| 2332 /* Fell out of while() loop: no more <CR><NL> pairs. Just copy | |
| 2333 * the rest of the data, up to the first null byte. */ | |
| 2334 pEnd = strchr(pStart, '\0'); /* find first null */ | |
| 2335 | |
| 2336 memmove(pDest, pStart, (long)(pEnd - pStart)); /* exclude nul */ | |
| 2337 pDest += (long)(pEnd - pStart); | |
| 2338 *pDest = '\0'; /* terminate */ | |
| 2339 | |
| 2340 /* Now that all <CR><NL> pairs have been "compressed" into just | |
| 2341 * <NL>'s, determine the true text length. */ | |
| 2342 clip_data_size = (long_u)(pDest - pClipText); | |
| 2343 } | |
| 2344 else | |
| 2345 { | |
| 2346 /* no <CR><NL> pairs at all */ | |
| 2347 /* Since the data may have been padded with trailing nulls, | |
| 2348 * determine the true string length. */ | |
| 2349 clip_data_size = STRLEN(pClipText); /* true data length */ | |
| 2350 } | |
| 2351 | |
| 2352 /* Copy the cleaned-up data over to Vim's clipboard "*" register. */ | |
| 2353 clip_yank_selection(type, pClipText, clip_data_size, cbd); | |
| 2354 | |
| 2355 /* Free the memory that Win16GetClipboardData() allocated. */ | |
| 2356 vim_free(pAllocated); | |
| 2357 } | |
| 2358 | |
| 2359 Win16CloseClipboard(); | |
| 2360 | |
| 2361 } // end if (Win16OpenClipboard()) | |
| 2362 } | |
| 2363 | |
| 2364 /* | |
| 2365 * Send the currently selected Vim text to the Windows clipboard. | |
| 2366 */ | |
| 2367 void | |
| 2368 clip_mch_set_selection( VimClipboard *cbd ) | |
| 2369 { | |
| 2370 char_u *pClipData = NULL; | |
| 2371 long_u clip_data_size; | |
| 2372 int clip_data_type; | |
| 2373 | |
| 2374 /* If the '*' register isn't already filled in, fill it in now. */ | |
| 2375 cbd->owned = TRUE; | |
| 2376 clip_get_selection(cbd); | |
| 2377 cbd->owned = FALSE; | |
| 2378 | |
| 2379 /* | |
| 2380 * clip_convert_selection() returns a pointer to a buffer containing | |
| 2381 * the text to send to the Windows clipboard, together with a count | |
| 2382 * of the number of characters (bytes) in the buffer. The function's | |
| 2383 * return value is the 'type' of selection: MLINE, MCHAR, or MBLOCK; | |
| 2384 * or -1 for failure. | |
| 2385 */ | |
| 2386 clip_data_type = clip_convert_selection(&pClipData, &clip_data_size, cbd); | |
| 2387 | |
| 2388 if (clip_data_type < 0) /* could not convert? */ | |
| 2389 return; /* early exit */ | |
| 2390 | |
| 2391 if (Win16OpenClipboard()) | |
| 2392 { | |
| 2393 if (Win16EmptyClipboard()) | |
| 2394 { | |
| 2395 int sentOK; | |
| 2396 | |
| 2397 sentOK = Win16SetClipboardData(CF_TEXT, pClipData, | |
| 2398 clip_data_size, clip_data_type); | |
| 2399 sentOK = Win16SetClipboardData(CF_VIMCLIP, | |
| 2400 pClipData, clip_data_size, clip_data_type) && sentOK; | |
| 2401 | |
| 2402 if (!sentOK) | |
| 2403 { | |
| 2404 /* one or both of Win16SetClipboardData() failed. */ | |
| 2405 /* Technically we don't know why Win16SetClipboardData() | |
| 2406 * failed, but almost always it will be because there wasn't | |
| 1210 | 2407 * enough DOS memory to buffer the data, so report that as the |
| 7 | 2408 * problem. |
| 2409 * | |
| 2410 * We report the error here (instead of in | |
| 2411 * Win16SetClipboardData()) because we don't want the error | |
| 2412 * reported twice. | |
| 2413 */ | |
| 2414 EMSG("E450: Selection too large, cannot allocate DOS buffer"); | |
| 2415 } | |
| 2416 } | |
| 2417 | |
| 2418 Win16CloseClipboard(); | |
| 2419 } | |
| 2420 | |
| 2421 /* release memory allocated by clip_convert_selection() */ | |
| 2422 vim_free(pClipData); | |
| 2423 | |
| 2424 return; | |
| 2425 } | |
| 2426 | |
| 2427 /* | |
| 2428 * Win16OpenClipboard: open the Windows clipboard. The clipboard must be open | |
| 2429 * before it can be communicated with at all. Return TRUE on success, | |
| 2430 * FALSE on failure. | |
| 2431 */ | |
| 2432 static int | |
| 2433 Win16OpenClipboard(void) | |
| 2434 { | |
| 2435 __dpmi_regs dpmi_regs; | |
| 2436 | |
| 2437 long start_time; | |
| 2438 int tick_count; | |
| 2439 | |
| 4352 | 2440 /* int 0x2f, AX = 0x1701 attempts to open the Windows clipboard. Upon |
| 7 | 2441 * return from the interrupt, if AX is non-zero, the clipboard was |
| 2442 * successfully opened. If AX is zero, the clipboard could not be opened | |
| 2443 * because it is currently in use by another process. | |
| 2444 * | |
| 2445 * Remark: other DOS programs I (dk) have written that use the Windows | |
| 2446 * clipboard sometimes encounter the problem that the clipboard cannot | |
| 2447 * be opened even though it is demonstrably not in use by any other | |
| 2448 * process. In all cases, repeated attempts to open the clipboard | |
| 2449 * eventually succeed, but the initial attempt occasionally fails. | |
| 2450 * | |
| 2451 * The problem is intermittent and appears to be related to DOS being | |
| 2452 * "busy" at certain unpredictable times. DOS maintains two internal | |
| 2453 * flags that indicate whether it's busy: InDOS and CritErr. The | |
| 2454 * location of InDOS can be found by calling int 0x21, AH = 0x34. The | |
| 2455 * location of CritErr can be found by calling int 0x21, AX = 0x5d06. | |
| 2456 * If either of these flags is set, DOS is "busy" and cannot be | |
| 2457 * interrupted. See "Undocumented DOS" by Schulman et al for details. | |
| 2458 * | |
| 2459 * However here I take the easier approach that if the first call to open | |
| 2460 * the clipboard does not succeed, just try again. In fact, try once per | |
| 2461 * biostime() clock tick, up to 18 times (about one second). | |
| 2462 */ | |
| 2463 | |
| 2464 tick_count = 0; | |
| 2465 | |
| 2466 dpmi_regs.x.ax = 0x1701; /* open Windows clipboard */ | |
| 2467 if (__dpmi_int(0x2f, &dpmi_regs) == -1) | |
| 2468 { | |
| 2469 /* real-mode interrupt failed? */ | |
| 2470 return FALSE; /* FALSE --> clipboard not open */ | |
| 2471 } | |
| 2472 | |
| 2473 /* wait up to one second */ | |
| 2474 while (dpmi_regs.x.ax == 0 && tick_count++ < 18) | |
| 2475 { | |
| 2476 /* Wait one clock tick (18.2 ticks/sec = 55 msec per tick). | |
| 2477 * | |
| 2478 * We busy-wait here. Unfortunately, delay() and usleep() have been | |
| 2479 * reported to give problems with the original Windows 95. This is | |
| 2480 * fixed in service pack 1, but not everybody installed that. | |
| 2481 */ | |
| 2482 start_time = biostime(0, 0L); | |
| 2483 while (biostime(0, 0L) == start_time) | |
| 2484 ; | |
| 2485 | |
| 2486 dpmi_regs.x.ax = 0x1701; /* open Windows clipboard */ | |
| 2487 if (__dpmi_int(0x2f, &dpmi_regs) == -1) | |
| 2488 { | |
| 2489 /* real-mode interrupt failed? */ | |
| 2490 return FALSE; /* FALSE --> clipboard not open */ | |
| 2491 } | |
| 2492 } | |
| 2493 | |
| 2494 /* Couldn't open the clipboard, even after 18 attempts? */ | |
| 2495 | |
| 2496 if (tick_count >= 18 && dpmi_regs.x.ax == 0) | |
| 2497 return FALSE; /* FALSE --> clipboard not open */ | |
| 2498 | |
| 2499 return TRUE; /* TRUE --> clipboard opened successfully, OK */ | |
| 2500 } | |
| 2501 | |
| 2502 /* | |
| 2503 * Win16CloseClipboard: close the Windows clipboard. Return TRUE on | |
| 2504 * success, FALSE on failure. This function can always be called, | |
| 2505 * whether the clipboard is open or not. | |
| 2506 */ | |
| 2507 static int | |
| 2508 Win16CloseClipboard(void) | |
| 2509 { | |
| 2510 __dpmi_regs dpmi_regs; | |
| 2511 | |
| 2512 /* Close the clipboard. This interrupt can always be called, even | |
| 2513 * if the clipboard is already closed. | |
| 2514 */ | |
| 2515 | |
| 2516 dpmi_regs.x.ax = 0x1708; /* close the clipboard */ | |
| 2517 if (__dpmi_int(0x2f, &dpmi_regs) == -1) | |
| 2518 { | |
| 2519 /* real-mode interrupt failed? */ | |
| 2520 return FALSE; /* FALSE --> clipboard could not be closed */ | |
| 2521 } | |
| 2522 | |
| 2523 return TRUE; /* TRUE --> clipboard closed successfully, OK */ | |
| 2524 } | |
| 2525 | |
| 2526 /* | |
| 2527 * Win16EmptyClipboard: empty the (previously opened) Windows clipboard. | |
| 2528 * Return TRUE on success, FALSE on failure. | |
| 2529 */ | |
| 2530 static int | |
| 2531 Win16EmptyClipboard(void) | |
| 2532 { | |
| 2533 __dpmi_regs dpmi_regs; | |
| 2534 | |
| 4352 | 2535 /* int 0x2f, AX = 0x1702 attempts to empty the Windows clipboard. Upon |
| 7 | 2536 * return from the interrupt, if AX == 0, the clipboard could not be |
| 2537 * emptied (for some reason). | |
| 2538 */ | |
| 2539 dpmi_regs.x.ax = 0x1702; /* empty the Windows clipboard */ | |
| 2540 if (__dpmi_int(0x2f, &dpmi_regs) == -1) | |
| 2541 { | |
| 2542 /* real-mode interrupt failed? */ | |
| 2543 return FALSE; /* FALSE --> clipboard could not be emptied */ | |
| 2544 } | |
| 2545 | |
| 2546 /* Did we succeed in clearing the clipboard? */ | |
| 2547 if (dpmi_regs.x.ax == 0) | |
| 2548 return FALSE; /* FALSE --> clipboard could not be emptied */ | |
| 2549 | |
| 2550 return TRUE; /* TRUE --> clipboard was emptied, OK */ | |
| 2551 } | |
| 2552 | |
| 2553 /* | |
| 2554 * FreeDOSMemory: a helper function to free memory previously | |
| 2555 * allocated by a call to __dpmi_allocate_dos_memory(). | |
| 2556 */ | |
| 2557 static void | |
| 2558 FreeDOSMemory(int protected_mode_selector) | |
| 2559 { | |
| 2560 /* Free the DOS buffer and release the DPMI prot-mode selector. | |
| 2561 * | |
| 2562 * It's important that DOS memory be properly released because | |
| 2563 * there's only a limited amount of it. Therefore, if the call | |
| 2564 * to __dpmi_free_dos_memory() fails, emit an error message | |
| 2565 * unconditionally. | |
| 2566 */ | |
| 2567 if (__dpmi_free_dos_memory(protected_mode_selector) == -1) | |
| 2568 EMSG("E451: could not free DOS memory buffer (DJGPP)"); | |
| 2569 } | |
| 2570 | |
| 2571 /* | |
| 2572 * Win16GetClipboardData: query the Windows clipboard as to whether data | |
| 2573 * is available in a particular clipboard format. If data is | |
| 2574 * available, allocate a buffer for it and read the data from the | |
| 2575 * clipboard into the buffer. Return a pointer to the buffer. If | |
| 2576 * no data is available in the requested format, return NULL. | |
| 2577 * | |
| 2578 * This routine allocates memory to hold the retrieved clipboard | |
| 2579 * data. It's the caller's responsibility to free this memory | |
| 2580 * once it's finished using it. The memory should be freed by | |
| 2581 * calling vim_free(). | |
| 2582 */ | |
| 2583 static char_u * | |
| 2584 Win16GetClipboardData(int clip_data_format) | |
| 2585 { | |
| 2586 __dpmi_regs dpmi_regs; | |
| 2587 | |
| 2588 int real_mode_segment_address; | |
| 2589 int protected_mode_selector; | |
| 2590 | |
| 2591 char_u *clip_data_buffer; | |
| 2592 long_u clip_data_size; | |
| 2593 | |
| 2594 /* We only handle clipboard formats we recognize, others are ignored. | |
| 2595 * | |
| 2596 * It's not possible to create a custom clipboard format for VimClipboard | |
| 2597 * data under DOS, so one of the predefined Windows formats had to be | |
| 2598 * used for CF_VIMCLIP. Two obscure formats, popular when Windows 3.0 | |
| 2599 * came out but no longer in much use today, are the DIF and SYLK formats. | |
| 2600 * DIF is the Data Interchange Format, SYLK is the Symbolic Link format. | |
| 2601 * They are both text formats and either one can be hijacked for use as | |
| 2602 * "the VimClipboard format". Of course, this conflicts with anyone who | |
| 2603 * still *is* using DIF or SYLK data formats, but that will be very few | |
| 2604 * people. | |
| 2605 * | |
| 2606 * I (dk) chose SYLK as the more obscure format because it was used | |
| 2607 * mostly for Microsoft Multiplan (the pre-cursor to Excel) and it's not | |
| 2608 * likely Multiplan is used anywhere much anymore. Mind you, Excel can | |
| 2609 * still export to both DIF and SYLK formats. | |
| 2610 */ | |
| 2611 | |
| 2612 switch (clip_data_format) | |
| 2613 { | |
| 2614 case CF_VIMCLIP: /* Vim's own special clipboard format */ | |
| 2615 case CF_TEXT: /* Windows text */ | |
| 2616 case CF_OEMTEXT: /* DOS (OEM) text */ | |
| 2617 | |
| 4352 | 2618 /* int 0x2f, AX = 0x1704 returns the number of bytes of data currently |
| 7 | 2619 * on the Windows clipboard, for the specified format. Upon return |
| 2620 * from the interrupt, DX:AX = the number of bytes, rounded up to the | |
| 2621 * nearest multiple of 32. | |
| 2622 */ | |
| 2623 | |
| 2624 dpmi_regs.x.ax = 0x1704; /* get size of clipbd data */ | |
| 2625 dpmi_regs.x.dx = clip_data_format; | |
| 2626 if (__dpmi_int(0x2f, &dpmi_regs) == -1) | |
| 2627 { | |
| 2628 /* real-mode interrupt failed? */ | |
| 2629 return NULL; /* early exit */ | |
| 2630 } | |
| 2631 | |
| 2632 /* Did we get anything? If not, this is not an error. */ | |
| 2633 if (dpmi_regs.x.dx == 0 && dpmi_regs.x.ax == 0) | |
| 2634 { | |
| 2635 /* no CF_VIMCLIP data? */ | |
| 2636 return NULL; /* early exit */ | |
| 2637 } | |
| 2638 | |
| 2639 /* There is data available in the requested clipboard format. | |
| 2640 * | |
| 2641 * Calculate data size. Remember this is rounded up to the nearest | |
| 2642 * multiple of 32, so clip_data_size is actually an upper limit. | |
| 2643 * The extra bytes, if any, are set to null (0x00) when the data is | |
| 2644 * read from the clipboard. (Later:) actually I'm no longer sure | |
| 2645 * this is strictly true: the end-of-data is marked by a null, but | |
| 2646 * the extra bytes appear to sometimes be null, sometimes not. | |
| 2647 * They may just be garbage. | |
| 2648 */ | |
| 2649 clip_data_size = dpmi_regs.x.ax + (dpmi_regs.x.dx << 16); | |
| 2650 | |
| 2651 /* Allocate memory to retrieve the data. The buffer has to lie in the | |
| 2652 * DOS memory region (in the first 1 MByte of address space) because | |
| 2653 * the Windows clipboard interface expects a 16-bit segment:offset | |
| 2654 * pointer to a buffer address within the DOS region. Must therefore | |
| 2655 * use __dpmi_allocate_dos_memory() instead of lalloc() or alloc(). | |
| 2656 */ | |
| 2657 real_mode_segment_address = __dpmi_allocate_dos_memory( | |
| 2658 (clip_data_size + 15) >> 4, /* buffer size, in 16-byte paragraphs */ | |
| 2659 &protected_mode_selector); /* prot-mode selector for the address */ | |
| 2660 | |
| 2661 if (real_mode_segment_address == -1) | |
| 2662 { | |
| 2663 /* memory allocation failed. */ | |
| 2664 | |
| 2665 /* Technically we don't know why the allocation failed, but | |
| 2666 * almost always it will be because there wasn't enough DOS | |
| 2667 * memory to satisfy the request, so report that as the problem. | |
| 2668 * On my system, DJGPP is able to satisfy a DOS allocation request | |
| 2669 * up to about 600K in size. This depends on your HIMEM.SYS and | |
| 2670 * EMM386.EXE settings however. | |
| 2671 */ | |
| 2672 EMSG("E452: Clipboard data too large, cannot allocate DOS buffer"); | |
| 2673 return NULL; /* early exit */ | |
| 2674 } | |
| 2675 | |
| 2676 /* Copy data from the clipboard into the buffer. Experiments show that | |
| 2677 * the Windows clipboard is smart enough to handle data transfers | |
| 2678 * larger than 64K properly, even though the buffer address is a 16-bit | |
| 2679 * segment:offset (which would normally limit the block size to 64K | |
| 2680 * unless ES gets incremented). | |
| 2681 */ | |
| 2682 dpmi_regs.x.ax = 0x1705; /* get clipboard data */ | |
| 2683 dpmi_regs.x.dx = clip_data_format; /* CF_VIMCLIP */ | |
| 2684 dpmi_regs.x.es = real_mode_segment_address; /* buffer ad: segment */ | |
| 2685 dpmi_regs.x.bx = 0; /* buffer ad: offset */ | |
| 2686 if (__dpmi_int( 0x2f, &dpmi_regs) == -1) | |
| 2687 { | |
| 2688 /* real-mode interrupt failed? */ | |
| 2689 EMSG("E453: could not copy clipboard data to DOS buffer"); | |
| 2690 FreeDOSMemory(protected_mode_selector); /* clean up DOS mem */ | |
| 2691 return NULL; /* early exit */ | |
| 2692 } | |
| 2693 | |
| 2694 /* Clipboard data is now in DOS memory in the buffer pointed to by | |
| 2695 * ES:BX. Copy this into ordinary memory that Vim can access (ie. | |
| 2696 * prot-mode memory). Allocate one extra byte to ensure the text | |
| 2697 * is terminated properly (in case it was somehow corrupted). | |
| 2698 */ | |
| 2699 clip_data_buffer = (char_u *)lalloc(clip_data_size + 1, TRUE); | |
| 2700 | |
| 2701 if (clip_data_buffer == NULL) | |
| 2702 { | |
| 2703 /* allocation failed? */ | |
| 2704 EMSG("E454: could not allocate clipboard memory buffer"); | |
| 2705 FreeDOSMemory(protected_mode_selector); /* clean up DOS mem */ | |
| 2706 return NULL; /* early exit */ | |
| 2707 } | |
| 2708 | |
| 2709 *(clip_data_buffer + clip_data_size) = '\0'; /* ensure terminated */ | |
| 2710 | |
| 2711 /* Copy the data from DOS memory to Vim-accessible memory. */ | |
| 2712 movedata( /* DJGPP version of memcpy() */ | |
| 2713 protected_mode_selector, 0, /* source: DOS ad (via selector) */ | |
| 2714 _my_ds(), (unsigned)clip_data_buffer, | |
| 2715 /* target: normal mem address */ | |
| 2716 clip_data_size); /* how many bytes */ | |
| 2717 | |
| 2718 /* Free the DOS buffer and release the DPMI prot-mode selector. */ | |
| 2719 FreeDOSMemory(protected_mode_selector); /* clean up DOS memory */ | |
| 2720 | |
| 2721 return clip_data_buffer; /* return pointer to allocated buffer */ | |
| 2722 | |
| 2723 default: /* unknown clipboard format */ | |
| 2724 return NULL; | |
| 2725 } | |
| 2726 } | |
| 2727 | |
| 2728 /* | |
| 2729 * Win16SetClipboardData: send 'clip_data_size' bytes of data from the buffer | |
| 2730 * pointed to by 'clip_data', to the Windows clipboard. The data is | |
| 2731 * registered with the clipboard as being in the 'clip_data_format' | |
| 2732 * format. | |
| 2733 */ | |
| 2734 static int | |
| 2735 Win16SetClipboardData( | |
| 2736 int clip_data_format, | |
| 2737 char_u *clip_data, | |
| 2738 int clip_data_size, | |
| 2739 int clip_data_type) | |
| 2740 { | |
| 2741 __dpmi_regs dpmi_regs; | |
| 2742 | |
| 2743 int real_mode_segment_address; | |
| 2744 int protected_mode_selector; | |
| 2745 long_u protected_mode_offset = 0L; | |
| 2746 int total_size = clip_data_size; | |
| 2747 | |
| 2748 char_u *clip_sel_type; | |
| 2749 | |
| 2750 /* If we're using the CF_VIMCLIP custom format, allocate an extra | |
| 2751 * byte for clip_sel_type, which is a character indicating the type | |
| 2752 * of text selection: MLINE, MCHAR, or MBLOCK. | |
| 2753 */ | |
| 2754 if (clip_data_format == CF_VIMCLIP) | |
| 2755 total_size++; /* extra byte for marker */ | |
| 2756 | |
| 2757 /* Data cannot be sent directly from a Vim string (pClipData) to | |
| 2758 * the Windows clipboard, because the Windows clipboard interface | |
| 2759 * expects a 16-bit (DOS) segment:offset address for the source | |
| 2760 * buffer. Therefore we must create a "transfer buffer" in the DOS | |
| 2761 * memory region (in the first 1 MByte of address space) and copy | |
| 2762 * the Vim string into that. From there, the data can then be sent | |
| 2763 * to the Windows clipboard. | |
| 2764 * | |
| 2765 * To allocate DOS memory, we must use __dpmi_allocate_dos_memory() | |
| 2766 * instead of lalloc() or alloc(). If the allocation fails, it will | |
| 2767 * almost invariably be because there is not enough DOS memory | |
| 2768 * available to accommodate the size of clip_data. There is nothing | |
| 2769 * we can do about this, we simply have to fail. | |
| 2770 */ | |
| 2771 real_mode_segment_address = __dpmi_allocate_dos_memory( | |
| 2772 (total_size + 15) >> 4, /* buffer size, in 16-byte paragraphs */ | |
| 2773 &protected_mode_selector); /* prot-mode selector for the address */ | |
| 2774 | |
| 2775 if (real_mode_segment_address == -1) | |
| 2776 { | |
| 2777 /* memory allocation failed. */ | |
| 2778 /* Technically we don't know why the allocation failed, but | |
| 2779 * almost always it will be because there wasn't enough DOS | |
| 2780 * memory to satisfy the request. On my system, DJGPP is able | |
| 2781 * to satisfy a DOS allocation request up to about 600K in size. | |
| 2782 * This depends however on HIMEM.SYS and EMM386.EXE settings. | |
| 2783 */ | |
| 2784 return FALSE; /* early exit */ | |
| 2785 } | |
| 2786 | |
| 2787 /* Copy data from Vim's buffer (clip_data) into the DOS transfer buffer. | |
| 2788 * This can be larger than 64K; movedata() takes care of crossing any | |
| 2789 * 16-bit segment boundaries. | |
| 2790 * | |
| 2791 * If we're using Vim's custom clipboard format, we must copy one extra | |
| 2792 * byte to indicate the type of selection: line, character, or block. | |
| 2793 */ | |
| 2794 if (clip_data_format == CF_VIMCLIP) | |
| 2795 { | |
| 2796 switch (clip_data_type) | |
| 2797 { | |
| 2798 default: | |
| 2799 case MLINE: clip_sel_type = "L"; break; | |
| 2800 case MCHAR: clip_sel_type = "C"; break; | |
| 2801 case MBLOCK: clip_sel_type = "B"; break; | |
| 2802 } | |
| 2803 | |
| 2804 movedata( | |
| 2805 _my_ds(), (unsigned)clip_sel_type, | |
| 2806 /* source: normal memory address */ | |
| 2807 protected_mode_selector, 0, /* target: DOS ad (via selector) */ | |
| 2808 1); /* how many bytes to copy */ | |
| 2809 | |
| 2810 protected_mode_offset += STRLEN(clip_sel_type); /* allow for marker */ | |
| 2811 } | |
| 2812 | |
| 2813 movedata( | |
| 2814 _my_ds(), (unsigned)clip_data, /* source: normal memory address */ | |
| 2815 protected_mode_selector, /* target: DOS address (via selector) */ | |
| 2816 protected_mode_offset, /* non-zero, if using clip_sel_type */ | |
| 2817 clip_data_size); /* how many bytes to copy */ | |
| 2818 | |
| 2819 /* Send data from the DOS transfer buffer to the Windows clipboard. | |
| 4352 | 2820 * int 0x2f, AX = 0x1703 sends SI:CX bytes of data from the buffer |
| 7 | 2821 * at ES:BX, to the clipboard. |
| 2822 */ | |
| 2823 dpmi_regs.x.ax = 0x1703; /* send clipboard data */ | |
| 2824 dpmi_regs.x.dx = clip_data_format; /* flag: format of the data */ | |
| 2825 dpmi_regs.x.si = ((total_size >> 16) | |
| 2826 & 0x0000ffffL); /* hi word of data size */ | |
| 2827 dpmi_regs.x.cx = (total_size & 0x0000ffffL); | |
| 2828 /* lo word of data size */ | |
| 2829 dpmi_regs.x.es = real_mode_segment_address; /* buffer address: segment */ | |
| 2830 dpmi_regs.x.bx = 0; /* buffer address: offset */ | |
| 2831 if (__dpmi_int(0x2f, &dpmi_regs) == -1) | |
| 2832 { | |
| 2833 /* real-mode interrupt failed. */ | |
| 2834 FreeDOSMemory(protected_mode_selector); /* clean up DOS memory */ | |
| 2835 return FALSE; /* early exit */ | |
| 2836 } | |
| 2837 | |
| 2838 /* Free the DOS buffer and release the DPMI prot-mode selector. */ | |
| 2839 FreeDOSMemory(protected_mode_selector); /* clean up DOS memory */ | |
| 2840 | |
| 2841 return TRUE; /* TRUE --> data successfully sent to clipboard */ | |
| 2842 } | |
| 2843 | |
| 2844 #endif /* FEAT_CLIPBOARD */ | |
| 2845 #endif /* DJGPP */ | |
| 2846 | |
| 2847 /* common MS-DOS and Win16 code follows */ | |
| 2848 | |
| 2849 static int | |
| 2850 vim_chmod(char_u *name) | |
| 2851 { | |
| 2852 char_u *p; | |
| 2853 int f; | |
| 2854 int c = 0; | |
| 2855 | |
| 2856 /* chmod() can't handle a file name with a trailing slash, remove it. | |
| 2857 * But don't remove it for "/" or "c:/". */ | |
| 2858 p = name + STRLEN(name); | |
| 2859 if (p > name) | |
| 2860 --p; | |
| 2861 if (p > name && (*p == '\\' || *p == '/') && p[-1] != ':') | |
| 2862 { | |
| 2863 c = *p; /* remove trailing (back)slash */ | |
| 2864 *p = NUL; | |
| 2865 } | |
| 2866 else | |
| 2867 p = NULL; | |
| 2868 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x410) | |
| 2869 /* this also sets the archive bit, supported by Borland C 4.0 and later, | |
| 2870 * where __BORLANDC__ is 0x450 (3.1 is 0x410) */ | |
| 2871 f = _rtl_chmod((char *)name, 0, 0); | |
| 2872 #else | |
| 2873 f = _chmod((char *)name, 0, 0); | |
| 2874 #endif | |
| 2875 if (p != NULL) | |
| 2876 *p = c; /* put back (back)slash */ | |
| 2877 return f; | |
| 2878 } | |
| 2879 | |
| 2880 /* | |
| 2881 * get file permissions for 'name' | |
| 2882 * Returns -1 for error. | |
| 2883 * Returns FA_attributes defined in dos.h | |
| 2884 */ | |
| 2885 long | |
| 2886 mch_getperm(char_u *name) | |
| 2887 { | |
| 2888 return (long)vim_chmod(name); /* get file mode */ | |
| 2889 } | |
| 2890 | |
| 2891 /* | |
| 2892 * set file permission for 'name' to 'perm' | |
| 2893 * | |
| 2894 * return FAIL for failure, OK otherwise | |
| 2895 */ | |
| 2896 int | |
| 2897 mch_setperm( | |
| 2898 char_u *name, | |
| 2899 long perm) | |
| 2900 { | |
| 2901 perm |= FA_ARCH; /* file has changed, set archive bit */ | |
| 2902 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x410) | |
| 2903 return (_rtl_chmod((char *)name, 1, (int)perm) == -1 ? FAIL : OK); | |
| 2904 #else | |
| 2905 return (_chmod((char *)name, 1, (int)perm) == -1 ? FAIL : OK); | |
| 2906 #endif | |
| 2907 } | |
| 2908 | |
| 2909 /* | |
| 2910 * Set hidden flag for "name". | |
| 2911 */ | |
| 2912 void | |
| 2913 mch_hide(char_u *name) | |
| 2914 { | |
| 2915 /* DOS 6.2 share.exe causes "seek error on file write" errors when making | |
| 2916 * the swap file hidden. Thus don't do it. */ | |
| 2917 } | |
| 2918 | |
| 2919 /* | |
| 2920 * return TRUE if "name" is a directory | |
| 2921 * return FALSE if "name" is not a directory | |
| 2922 * return FALSE for error | |
| 2923 * | |
| 2924 * beware of a trailing (back)slash | |
| 2925 */ | |
| 2926 int | |
| 2927 mch_isdir(char_u *name) | |
| 2928 { | |
| 2929 int f; | |
| 2930 | |
| 2931 f = vim_chmod(name); | |
| 2932 if (f == -1) | |
| 2933 return FALSE; /* file does not exist at all */ | |
| 2934 if ((f & FA_DIREC) == 0) | |
| 2935 return FALSE; /* not a directory */ | |
| 2936 return TRUE; | |
| 2937 } | |
| 2938 | |
| 2939 /* | |
| 2940 * Return 1 if "name" can be executed, 0 if not. | |
| 6695 | 2941 * If "use_path" is FALSE only check if "name" is executable. |
| 7 | 2942 * Return -1 if unknown. |
| 2943 */ | |
| 2944 int | |
|
7842
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
2945 mch_can_exe( |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
2946 char_u *name, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
2947 char_u **path, |
|
cf744110897d
commit https://github.com/vim/vim/commit/779a7759ad03e6a3fb616828793512644390655a
Christian Brabandt <cb@256bit.org>
parents:
6695
diff
changeset
|
2948 int use_path) |
| 7 | 2949 { |
| 9 | 2950 char *p; |
| 6695 | 2951 int mode; |
| 9 | 2952 |
| 6695 | 2953 if (!use_path) |
| 2954 { | |
| 2955 /* TODO: proper check if file is executable. */ | |
| 2956 mode = vim_chmod(name); | |
| 2957 return mode != -1 && (mode & FA_DIREC) == 0; | |
| 2958 } | |
| 9 | 2959 p = searchpath(name); |
| 2960 if (p == NULL || mch_isdir(p)) | |
| 2961 return FALSE; | |
| 5782 | 2962 if (path != NULL) |
| 2963 *path = vim_strsave(p); | |
| 9 | 2964 return TRUE; |
| 7 | 2965 } |
| 2966 | |
| 2967 /* | |
| 2968 * Check what "name" is: | |
| 2969 * NODE_NORMAL: file or directory (or doesn't exist) | |
| 2970 * NODE_WRITABLE: writable device, socket, fifo, etc. | |
| 2971 * NODE_OTHER: non-writable things | |
| 2972 */ | |
| 2973 int | |
| 2974 mch_nodetype(char_u *name) | |
| 2975 { | |
| 2976 if (STRICMP(name, "AUX") == 0 | |
| 2977 || STRICMP(name, "CON") == 0 | |
| 2978 || STRICMP(name, "CLOCK$") == 0 | |
| 2979 || STRICMP(name, "NUL") == 0 | |
| 2980 || STRICMP(name, "PRN") == 0 | |
| 2981 || ((STRNICMP(name, "COM", 3) == 0 | |
| 2982 || STRNICMP(name, "LPT", 3) == 0) | |
| 2983 && VIM_ISDIGIT(name[3]) | |
| 2984 && name[4] == NUL)) | |
| 2985 return NODE_WRITABLE; | |
| 2986 /* TODO: NODE_OTHER? */ | |
| 2987 return NODE_NORMAL; | |
| 2988 } | |
| 2989 | |
| 2990 /* | |
| 2991 * Get name of current directory into buffer 'buf' of length 'len' bytes. | |
| 2992 * Return OK for success, FAIL for failure. | |
| 2993 */ | |
| 2994 int | |
| 2995 mch_dirname( | |
| 2996 char_u *buf, | |
| 2997 int len) | |
| 2998 { | |
| 2999 #ifdef DJGPP | |
| 3000 if (getcwd((char *)buf, len) == NULL) | |
| 3001 return FAIL; | |
| 3002 /* turn the '/'s returned by DJGPP into '\'s */ | |
| 3003 slash_adjust(buf); | |
| 3004 return OK; | |
| 3005 #else | |
| 3006 return (getcwd((char *)buf, len) != NULL ? OK : FAIL); | |
| 3007 #endif | |
| 3008 } | |
| 3009 | |
| 3010 /* | |
| 3011 * this version of remove is not scared by a readonly (backup) file | |
| 3012 * | |
| 3013 * returns -1 on error, 0 otherwise (just like remove()) | |
| 3014 */ | |
| 3015 int | |
| 3016 mch_remove(char_u *name) | |
| 3017 { | |
| 3018 (void)mch_setperm(name, 0); /* default permissions */ | |
| 3019 return unlink((char *)name); | |
| 3020 } | |
| 3021 | |
| 3022 /* | |
| 3023 * Special version of getenv(): Use uppercase name. | |
| 3024 */ | |
| 3025 char_u * | |
| 3026 mch_getenv(char_u *name) | |
| 3027 { | |
| 3028 int i; | |
| 3029 #define MAXENVLEN 50 | |
| 3030 char_u var_copy[MAXENVLEN + 1]; | |
| 3031 char_u *p; | |
| 3032 char_u *res; | |
| 3033 | |
| 3034 /* | |
| 3035 * Take a copy of the argument, and force it to upper case before passing | |
| 3036 * to getenv(). On DOS systems, getenv() doesn't like lower-case argument | |
| 3037 * (unlike Win32 et al.) If the name is too long to fit in var_copy[] | |
| 3038 * allocate memory. | |
| 3039 */ | |
| 3040 if ((i = STRLEN(name)) > MAXENVLEN) | |
| 3041 p = alloc(i + 1); | |
| 3042 else | |
| 3043 p = var_copy; | |
| 3044 if (p == NULL) | |
| 3045 p = name; /* out of memory, fall back to unmodified name */ | |
| 3046 else | |
| 3047 { | |
| 3048 for (i = 0; name[i] != NUL; ++i) | |
| 3049 p[i] = toupper(name[i]); | |
| 3050 p[i] = NUL; | |
| 3051 } | |
| 3052 | |
| 3053 res = (char_u *)getenv((char *)p); | |
| 3054 | |
| 3055 if (p != var_copy && p != name) | |
| 3056 vim_free(p); | |
| 3057 | |
| 3058 return res; | |
| 3059 } | |
| 3060 | |
| 3061 /* | |
| 3062 * Insert user name in s[len]. | |
| 3063 */ | |
| 3064 int | |
| 3065 mch_get_user_name( | |
| 3066 char_u *s, | |
| 3067 int len) | |
| 3068 { | |
| 3069 *s = NUL; | |
| 3070 return FAIL; | |
| 3071 } | |
| 3072 | |
| 3073 /* | |
| 3074 * Insert host name is s[len]. | |
| 3075 */ | |
| 3076 void | |
| 3077 mch_get_host_name( | |
| 3078 char_u *s, | |
| 3079 int len) | |
| 3080 { | |
| 3081 #ifdef DJGPP | |
| 418 | 3082 vim_strncpy(s, "PC (32 bits Vim)", len - 1); |
| 7 | 3083 #else |
| 418 | 3084 vim_strncpy(s, "PC (16 bits Vim)", len - 1); |
| 7 | 3085 #endif |
| 3086 } |