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 * message.c: functions for displaying messages on the command line 12 */ 13 14 #define MESSAGE_FILE /* don't include prototype for smsg() */ 15 16 #include "vim.h" 17 18 static int other_sourcing_name __ARGS((void)); 19 static char_u *get_emsg_source __ARGS((void)); 20 static char_u *get_emsg_lnum __ARGS((void)); 21 static void add_msg_hist __ARGS((char_u *s, int len, int attr)); 22 static void hit_return_msg __ARGS((void)); 23 static void msg_home_replace_attr __ARGS((char_u *fname, int attr)); 24 #ifdef FEAT_MBYTE 25 static char_u *screen_puts_mbyte __ARGS((char_u *s, int l, int attr)); 26 #endif 27 static void msg_puts_attr_len __ARGS((char_u *str, int maxlen, int attr)); 28 static void msg_puts_display __ARGS((char_u *str, int maxlen, int attr, int recurse)); 29 static void msg_scroll_up __ARGS((void)); 30 static void inc_msg_scrolled __ARGS((void)); 31 static void store_sb_text __ARGS((char_u **sb_str, char_u *s, int attr, int *sb_col, int finish)); 32 static void t_puts __ARGS((int *t_col, char_u *t_s, char_u *s, int attr)); 33 static void msg_puts_printf __ARGS((char_u *str, int maxlen)); 34 static int do_more_prompt __ARGS((int typed_char)); 35 static void msg_screen_putchar __ARGS((int c, int attr)); 36 static int msg_check_screen __ARGS((void)); 37 static void redir_write __ARGS((char_u *s, int maxlen)); 38 static void verbose_write __ARGS((char_u *s, int maxlen)); 39 #ifdef FEAT_CON_DIALOG 40 static char_u *msg_show_console_dialog __ARGS((char_u *message, char_u *buttons, int dfltbutton)); 41 static int confirm_msg_used = FALSE; /* displaying confirm_msg */ 42 static char_u *confirm_msg = NULL; /* ":confirm" message */ 43 static char_u *confirm_msg_tail; /* tail of confirm_msg */ 44 #endif 45 46 struct msg_hist 47 { 48 struct msg_hist *next; 49 char_u *msg; 50 int attr; 51 }; 52 53 static struct msg_hist *first_msg_hist = NULL; 54 static struct msg_hist *last_msg_hist = NULL; 55 static int msg_hist_len = 0; 56 static int msg_hist_off = FALSE; /* don't add messages to history */ 57 58 /* 59 * When writing messages to the screen, there are many different situations. 60 * A number of variables is used to remember the current state: 61 * msg_didany TRUE when messages were written since the last time the 62 * user reacted to a prompt. 63 * Reset: After hitting a key for the hit-return prompt, 64 * hitting <CR> for the command line or input(). 65 * Set: When any message is written to the screen. 66 * msg_didout TRUE when something was written to the current line. 67 * Reset: When advancing to the next line, when the current 68 * text can be overwritten. 69 * Set: When any message is written to the screen. 70 * msg_nowait No extra delay for the last drawn message. 71 * Used in normal_cmd() before the mode message is drawn. 72 * emsg_on_display There was an error message recently. Indicates that there 73 * should be a delay before redrawing. 74 * msg_scroll The next message should not overwrite the current one. 75 * msg_scrolled How many lines the screen has been scrolled (because of 76 * messages). Used in update_screen() to scroll the screen 77 * back. Incremented each time the screen scrolls a line. 78 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 79 * writes something without scrolling should not make 80 * need_wait_return to be set. This is a hack to make ":ts" 81 * work without an extra prompt. 82 * lines_left Number of lines available for messages before the 83 * more-prompt is to be given. 84 * need_wait_return TRUE when the hit-return prompt is needed. 85 * Reset: After giving the hit-return prompt, when the user 86 * has answered some other prompt. 87 * Set: When the ruler or typeahead display is overwritten, 88 * scrolling the screen for some message. 89 * keep_msg Message to be displayed after redrawing the screen, in 90 * main_loop(). 91 * This is an allocated string or NULL when not used. 92 */ 93 94 /* 95 * msg(s) - displays the string 's' on the status line 96 * When terminal not initialized (yet) mch_errmsg(..) is used. 97 * return TRUE if wait_return not called 98 */ 99 int 100 msg(s) 101 char_u *s; 102 { 103 return msg_attr_keep(s, 0, FALSE); 104 } 105 106 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 107 || defined(PROTO) 108 /* 109 * Like msg() but keep it silent when 'verbosefile' is set. 110 */ 111 int 112 verb_msg(s) 113 char_u *s; 114 { 115 int n; 116 117 verbose_enter(); 118 n = msg_attr_keep(s, 0, FALSE); 119 verbose_leave(); 120 121 return n; 122 } 123 #endif 124 125 int 126 msg_attr(s, attr) 127 char_u *s; 128 int attr; 129 { 130 return msg_attr_keep(s, attr, FALSE); 131 } 132 133 int 134 msg_attr_keep(s, attr, keep) 135 char_u *s; 136 int attr; 137 int keep; /* TRUE: set keep_msg if it doesn't scroll */ 138 { 139 static int entered = 0; 140 int retval; 141 char_u *buf = NULL; 142 143 #ifdef FEAT_EVAL 144 if (attr == 0) 145 set_vim_var_string(VV_STATUSMSG, s, -1); 146 #endif 147 148 /* 149 * It is possible that displaying a messages causes a problem (e.g., 150 * when redrawing the window), which causes another message, etc.. To 151 * break this loop, limit the recursiveness to 3 levels. 152 */ 153 if (entered >= 3) 154 return TRUE; 155 ++entered; 156 157 /* Add message to history (unless it's a repeated kept message or a 158 * truncated message) */ 159 if (s != keep_msg 160 || (*s != '<' 161 && last_msg_hist != NULL 162 && last_msg_hist->msg != NULL 163 && STRCMP(s, last_msg_hist->msg))) 164 add_msg_hist(s, -1, attr); 165 166 /* When displaying keep_msg, don't let msg_start() free it, caller must do 167 * that. */ 168 if (s == keep_msg) 169 keep_msg = NULL; 170 171 /* Truncate the message if needed. */ 172 msg_start(); 173 buf = msg_strtrunc(s, FALSE); 174 if (buf != NULL) 175 s = buf; 176 177 msg_outtrans_attr(s, attr); 178 msg_clr_eos(); 179 retval = msg_end(); 180 181 if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1) 182 * Columns + sc_col) 183 set_keep_msg(s, 0); 184 185 vim_free(buf); 186 --entered; 187 return retval; 188 } 189 190 /* 191 * Truncate a string such that it can be printed without causing a scroll. 192 * Returns an allocated string or NULL when no truncating is done. 193 */ 194 char_u * 195 msg_strtrunc(s, force) 196 char_u *s; 197 int force; /* always truncate */ 198 { 199 char_u *buf = NULL; 200 int len; 201 int room; 202 203 /* May truncate message to avoid a hit-return prompt */ 204 if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 205 && !exmode_active && msg_silent == 0) || force) 206 { 207 len = vim_strsize(s); 208 if (msg_scrolled != 0) 209 /* Use all the columns. */ 210 room = (int)(Rows - msg_row) * Columns - 1; 211 else 212 /* Use up to 'showcmd' column. */ 213 room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1; 214 if (len > room && room > 0) 215 { 216 #ifdef FEAT_MBYTE 217 if (enc_utf8) 218 /* may have up to 18 bytes per cell (6 per char, up to two 219 * composing chars) */ 220 buf = alloc((room + 2) * 18); 221 else if (enc_dbcs == DBCS_JPNU) 222 /* may have up to 2 bytes per cell for euc-jp */ 223 buf = alloc((room + 2) * 2); 224 else 225 #endif 226 buf = alloc(room + 2); 227 if (buf != NULL) 228 trunc_string(s, buf, room); 229 } 230 } 231 return buf; 232 } 233 234 /* 235 * Truncate a string "s" to "buf" with cell width "room". 236 * "s" and "buf" may be equal. 237 */ 238 void 239 trunc_string(s, buf, room) 240 char_u *s; 241 char_u *buf; 242 int room; 243 { 244 int half; 245 int len; 246 int e; 247 int i; 248 int n; 249 250 room -= 3; 251 half = room / 2; 252 len = 0; 253 254 /* First part: Start of the string. */ 255 for (e = 0; len < half; ++e) 256 { 257 if (s[e] == NUL) 258 { 259 /* text fits without truncating! */ 260 buf[e] = NUL; 261 return; 262 } 263 n = ptr2cells(s + e); 264 if (len + n >= half) 265 break; 266 len += n; 267 buf[e] = s[e]; 268 #ifdef FEAT_MBYTE 269 if (has_mbyte) 270 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 271 { 272 ++e; 273 buf[e] = s[e]; 274 } 275 #endif 276 } 277 278 /* Last part: End of the string. */ 279 i = e; 280 #ifdef FEAT_MBYTE 281 if (enc_dbcs != 0) 282 { 283 /* For DBCS going backwards in a string is slow, but 284 * computing the cell width isn't too slow: go forward 285 * until the rest fits. */ 286 n = vim_strsize(s + i); 287 while (len + n > room) 288 { 289 n -= ptr2cells(s + i); 290 i += (*mb_ptr2len)(s + i); 291 } 292 } 293 else if (enc_utf8) 294 { 295 /* For UTF-8 we can go backwards easily. */ 296 half = i = (int)STRLEN(s); 297 for (;;) 298 { 299 do 300 half = half - (*mb_head_off)(s, s + half - 1) - 1; 301 while (utf_iscomposing(utf_ptr2char(s + half)) && half > 0); 302 n = ptr2cells(s + half); 303 if (len + n > room) 304 break; 305 len += n; 306 i = half; 307 } 308 } 309 else 310 #endif 311 { 312 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 313 len += n; 314 } 315 316 /* Set the middle and copy the last part. */ 317 mch_memmove(buf + e, "...", (size_t)3); 318 mch_memmove(buf + e + 3, s + i, STRLEN(s + i) + 1); 319 } 320 321 /* 322 * Automatic prototype generation does not understand this function. 323 * Note: Caller of smgs() and smsg_attr() must check the resulting string is 324 * shorter than IOSIZE!!! 325 */ 326 #ifndef PROTO 327 # ifndef HAVE_STDARG_H 328 329 int 330 #ifdef __BORLANDC__ 331 _RTLENTRYF 332 #endif 333 smsg __ARGS((char_u *, long, long, long, 334 long, long, long, long, long, long, long)); 335 int 336 #ifdef __BORLANDC__ 337 _RTLENTRYF 338 #endif 339 smsg_attr __ARGS((int, char_u *, long, long, long, 340 long, long, long, long, long, long, long)); 341 342 int vim_snprintf __ARGS((char *, size_t, char *, long, long, long, 343 long, long, long, long, long, long, long)); 344 345 /* 346 * smsg(str, arg, ...) is like using sprintf(buf, str, arg, ...) and then 347 * calling msg(buf). 348 * The buffer used is IObuff, the message is truncated at IOSIZE. 349 */ 350 351 /* VARARGS */ 352 int 353 #ifdef __BORLANDC__ 354 _RTLENTRYF 355 #endif 356 smsg(s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 357 char_u *s; 358 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 359 { 360 return smsg_attr(0, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 361 } 362 363 /* VARARGS */ 364 int 365 #ifdef __BORLANDC__ 366 _RTLENTRYF 367 #endif 368 smsg_attr(attr, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 369 int attr; 370 char_u *s; 371 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 372 { 373 vim_snprintf((char *)IObuff, IOSIZE, (char *)s, 374 a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 375 return msg_attr(IObuff, attr); 376 } 377 378 # else /* HAVE_STDARG_H */ 379 380 int vim_snprintf(char *str, size_t str_m, char *fmt, ...); 381 382 int 383 #ifdef __BORLANDC__ 384 _RTLENTRYF 385 #endif 386 smsg(char_u *s, ...) 387 { 388 va_list arglist; 389 390 va_start(arglist, s); 391 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 392 va_end(arglist); 393 return msg(IObuff); 394 } 395 396 int 397 #ifdef __BORLANDC__ 398 _RTLENTRYF 399 #endif 400 smsg_attr(int attr, char_u *s, ...) 401 { 402 va_list arglist; 403 404 va_start(arglist, s); 405 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 406 va_end(arglist); 407 return msg_attr(IObuff, attr); 408 } 409 410 # endif /* HAVE_STDARG_H */ 411 #endif 412 413 /* 414 * Remember the last sourcing name/lnum used in an error message, so that it 415 * isn't printed each time when it didn't change. 416 */ 417 static int last_sourcing_lnum = 0; 418 static char_u *last_sourcing_name = NULL; 419 420 /* 421 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 422 * for the next error message; 423 */ 424 void 425 reset_last_sourcing() 426 { 427 vim_free(last_sourcing_name); 428 last_sourcing_name = NULL; 429 last_sourcing_lnum = 0; 430 } 431 432 /* 433 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 434 */ 435 static int 436 other_sourcing_name() 437 { 438 if (sourcing_name != NULL) 439 { 440 if (last_sourcing_name != NULL) 441 return STRCMP(sourcing_name, last_sourcing_name) != 0; 442 return TRUE; 443 } 444 return FALSE; 445 } 446 447 /* 448 * Get the message about the source, as used for an error message. 449 * Returns an allocated string with room for one more character. 450 * Returns NULL when no message is to be given. 451 */ 452 static char_u * 453 get_emsg_source() 454 { 455 char_u *Buf, *p; 456 457 if (sourcing_name != NULL && other_sourcing_name()) 458 { 459 p = (char_u *)_("Error detected while processing %s:"); 460 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 461 if (Buf != NULL) 462 sprintf((char *)Buf, (char *)p, sourcing_name); 463 return Buf; 464 } 465 return NULL; 466 } 467 468 /* 469 * Get the message about the source lnum, as used for an error message. 470 * Returns an allocated string with room for one more character. 471 * Returns NULL when no message is to be given. 472 */ 473 static char_u * 474 get_emsg_lnum() 475 { 476 char_u *Buf, *p; 477 478 /* lnum is 0 when executing a command from the command line 479 * argument, we don't want a line number then */ 480 if (sourcing_name != NULL 481 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 482 && sourcing_lnum != 0) 483 { 484 p = (char_u *)_("line %4ld:"); 485 Buf = alloc((unsigned)(STRLEN(p) + 20)); 486 if (Buf != NULL) 487 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 488 return Buf; 489 } 490 return NULL; 491 } 492 493 /* 494 * Display name and line number for the source of an error. 495 * Remember the file name and line number, so that for the next error the info 496 * is only displayed if it changed. 497 */ 498 void 499 msg_source(attr) 500 int attr; 501 { 502 char_u *p; 503 504 ++no_wait_return; 505 p = get_emsg_source(); 506 if (p != NULL) 507 { 508 msg_attr(p, attr); 509 vim_free(p); 510 } 511 p = get_emsg_lnum(); 512 if (p != NULL) 513 { 514 msg_attr(p, hl_attr(HLF_N)); 515 vim_free(p); 516 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 517 } 518 519 /* remember the last sourcing name printed, also when it's empty */ 520 if (sourcing_name == NULL || other_sourcing_name()) 521 { 522 vim_free(last_sourcing_name); 523 if (sourcing_name == NULL) 524 last_sourcing_name = NULL; 525 else 526 last_sourcing_name = vim_strsave(sourcing_name); 527 } 528 --no_wait_return; 529 } 530 531 /* 532 * emsg() - display an error message 533 * 534 * Rings the bell, if appropriate, and calls message() to do the real work 535 * When terminal not initialized (yet) mch_errmsg(..) is used. 536 * 537 * return TRUE if wait_return not called 538 */ 539 int 540 emsg(s) 541 char_u *s; 542 { 543 int attr; 544 char_u *p; 545 #ifdef FEAT_EVAL 546 int ignore = FALSE; 547 int severe; 548 #endif 549 550 called_emsg = TRUE; 551 ex_exitval = 1; 552 553 /* 554 * If "emsg_severe" is TRUE: When an error exception is to be thrown, 555 * prefer this message over previous messages for the same command. 556 */ 557 #ifdef FEAT_EVAL 558 severe = emsg_severe; 559 emsg_severe = FALSE; 560 #endif 561 562 /* 563 * If "emsg_off" is set: no error messages at the moment. 564 * If 'debug' is set: do error message anyway, but without side effects. 565 * If "emsg_skip" is set: never do error messages. 566 */ 567 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL) 568 #ifdef FEAT_EVAL 569 || emsg_skip > 0 570 #endif 571 ) 572 return TRUE; 573 574 if (!emsg_off) 575 { 576 #ifdef FEAT_EVAL 577 /* 578 * Cause a throw of an error exception if appropriate. Don't display 579 * the error message in this case. (If no matching catch clause will 580 * be found, the message will be displayed later on.) "ignore" is set 581 * when the message should be ignored completely (used for the 582 * interrupt message). 583 */ 584 if (cause_errthrow(s, severe, &ignore) == TRUE) 585 { 586 if (!ignore) 587 did_emsg = TRUE; 588 return TRUE; 589 } 590 591 /* set "v:errmsg", also when using ":silent! cmd" */ 592 set_vim_var_string(VV_ERRMSG, s, -1); 593 #endif 594 595 /* 596 * When using ":silent! cmd" ignore error messsages. 597 * But do write it to the redirection file. 598 */ 599 if (emsg_silent != 0) 600 { 601 msg_start(); 602 p = get_emsg_source(); 603 if (p != NULL) 604 { 605 STRCAT(p, "\n"); 606 redir_write(p, -1); 607 vim_free(p); 608 } 609 p = get_emsg_lnum(); 610 if (p != NULL) 611 { 612 STRCAT(p, "\n"); 613 redir_write(p, -1); 614 vim_free(p); 615 } 616 redir_write(s, -1); 617 return TRUE; 618 } 619 620 /* Reset msg_silent, an error causes messages to be switched back on. */ 621 msg_silent = 0; 622 cmd_silent = FALSE; 623 624 if (global_busy) /* break :global command */ 625 ++global_busy; 626 627 if (p_eb) 628 beep_flush(); /* also includes flush_buffers() */ 629 else 630 flush_buffers(FALSE); /* flush internal buffers */ 631 did_emsg = TRUE; /* flag for DoOneCmd() */ 632 } 633 634 emsg_on_display = TRUE; /* remember there is an error message */ 635 ++msg_scroll; /* don't overwrite a previous message */ 636 attr = hl_attr(HLF_E); /* set highlight mode for error messages */ 637 if (msg_scrolled != 0) 638 need_wait_return = TRUE; /* needed in case emsg() is called after 639 * wait_return has reset need_wait_return 640 * and a redraw is expected because 641 * msg_scrolled is non-zero */ 642 643 /* 644 * Display name and line number for the source of the error. 645 */ 646 msg_source(attr); 647 648 /* 649 * Display the error message itself. 650 */ 651 msg_nowait = FALSE; /* wait for this msg */ 652 return msg_attr(s, attr); 653 } 654 655 /* 656 * Print an error message with one "%s" and one string argument. 657 */ 658 int 659 emsg2(s, a1) 660 char_u *s, *a1; 661 { 662 return emsg3(s, a1, NULL); 663 } 664 665 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 666 667 void 668 emsg_invreg(name) 669 int name; 670 { 671 EMSG2(_("E354: Invalid register name: '%s'"), transchar(name)); 672 } 673 674 /* 675 * Like msg(), but truncate to a single line if p_shm contains 't', or when 676 * "force" is TRUE. This truncates in another way as for normal messages. 677 * Careful: The string may be changed by msg_may_trunc()! 678 * Returns a pointer to the printed message, if wait_return() not called. 679 */ 680 char_u * 681 msg_trunc_attr(s, force, attr) 682 char_u *s; 683 int force; 684 int attr; 685 { 686 int n; 687 688 /* Add message to history before truncating */ 689 add_msg_hist(s, -1, attr); 690 691 s = msg_may_trunc(force, s); 692 693 msg_hist_off = TRUE; 694 n = msg_attr(s, attr); 695 msg_hist_off = FALSE; 696 697 if (n) 698 return s; 699 return NULL; 700 } 701 702 /* 703 * Check if message "s" should be truncated at the start (for filenames). 704 * Return a pointer to where the truncated message starts. 705 * Note: May change the message by replacing a character with '<'. 706 */ 707 char_u * 708 msg_may_trunc(force, s) 709 int force; 710 char_u *s; 711 { 712 int n; 713 int room; 714 715 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 716 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 717 && (n = (int)STRLEN(s) - room) > 0) 718 { 719 #ifdef FEAT_MBYTE 720 if (has_mbyte) 721 { 722 int size = vim_strsize(s); 723 724 /* There may be room anyway when there are multibyte chars. */ 725 if (size <= room) 726 return s; 727 728 for (n = 0; size >= room; ) 729 { 730 size -= (*mb_ptr2cells)(s + n); 731 n += (*mb_ptr2len)(s + n); 732 } 733 --n; 734 } 735 #endif 736 s += n; 737 *s = '<'; 738 } 739 return s; 740 } 741 742 static void 743 add_msg_hist(s, len, attr) 744 char_u *s; 745 int len; /* -1 for undetermined length */ 746 int attr; 747 { 748 struct msg_hist *p; 749 750 if (msg_hist_off || msg_silent != 0) 751 return; 752 753 /* Don't let the message history get too big */ 754 while (msg_hist_len > MAX_MSG_HIST_LEN) 755 (void)delete_first_msg(); 756 757 /* allocate an entry and add the message at the end of the history */ 758 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 759 if (p != NULL) 760 { 761 if (len < 0) 762 len = (int)STRLEN(s); 763 /* remove leading and trailing newlines */ 764 while (len > 0 && *s == '\n') 765 { 766 ++s; 767 --len; 768 } 769 while (len > 0 && s[len - 1] == '\n') 770 --len; 771 p->msg = vim_strnsave(s, len); 772 p->next = NULL; 773 p->attr = attr; 774 if (last_msg_hist != NULL) 775 last_msg_hist->next = p; 776 last_msg_hist = p; 777 if (first_msg_hist == NULL) 778 first_msg_hist = last_msg_hist; 779 ++msg_hist_len; 780 } 781 } 782 783 /* 784 * Delete the first (oldest) message from the history. 785 * Returns FAIL if there are no messages. 786 */ 787 int 788 delete_first_msg() 789 { 790 struct msg_hist *p; 791 792 if (msg_hist_len <= 0) 793 return FAIL; 794 p = first_msg_hist; 795 first_msg_hist = p->next; 796 vim_free(p->msg); 797 vim_free(p); 798 --msg_hist_len; 799 return OK; 800 } 801 802 /* 803 * ":messages" command. 804 */ 805 /*ARGSUSED*/ 806 void 807 ex_messages(eap) 808 exarg_T *eap; 809 { 810 struct msg_hist *p; 811 char_u *s; 812 813 msg_hist_off = TRUE; 814 815 s = mch_getenv((char_u *)"LANG"); 816 if (s != NULL && *s != NUL) 817 msg_attr((char_u *) 818 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 819 hl_attr(HLF_T)); 820 821 for (p = first_msg_hist; p != NULL; p = p->next) 822 if (p->msg != NULL) 823 msg_attr(p->msg, p->attr); 824 825 msg_hist_off = FALSE; 826 } 827 828 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 829 /* 830 * Call this after prompting the user. This will avoid a hit-return message 831 * and a delay. 832 */ 833 void 834 msg_end_prompt() 835 { 836 need_wait_return = FALSE; 837 emsg_on_display = FALSE; 838 cmdline_row = msg_row; 839 msg_col = 0; 840 msg_clr_eos(); 841 } 842 #endif 843 844 /* 845 * wait for the user to hit a key (normally a return) 846 * if 'redraw' is TRUE, clear and redraw the screen 847 * if 'redraw' is FALSE, just redraw the screen 848 * if 'redraw' is -1, don't redraw at all 849 */ 850 void 851 wait_return(redraw) 852 int redraw; 853 { 854 int c; 855 int oldState; 856 int tmpState; 857 int had_got_int; 858 859 if (redraw == TRUE) 860 must_redraw = CLEAR; 861 862 /* If using ":silent cmd", don't wait for a return. Also don't set 863 * need_wait_return to do it later. */ 864 if (msg_silent != 0) 865 return; 866 867 /* 868 * With the global command (and some others) we only need one return at the 869 * end. Adjust cmdline_row to avoid the next message overwriting the last one. 870 * When inside vgetc(), we can't wait for a typed character at all. 871 */ 872 if (vgetc_busy) 873 return; 874 if (no_wait_return) 875 { 876 need_wait_return = TRUE; 877 if (!exmode_active) 878 cmdline_row = msg_row; 879 return; 880 } 881 882 redir_off = TRUE; /* don't redirect this message */ 883 oldState = State; 884 if (quit_more) 885 { 886 c = CAR; /* just pretend CR was hit */ 887 quit_more = FALSE; 888 got_int = FALSE; 889 } 890 else if (exmode_active) 891 { 892 MSG_PUTS(" "); /* make sure the cursor is on the right line */ 893 c = CAR; /* no need for a return in ex mode */ 894 got_int = FALSE; 895 } 896 else 897 { 898 /* Make sure the hit-return prompt is on screen when 'guioptions' was 899 * just changed. */ 900 screenalloc(FALSE); 901 902 State = HITRETURN; 903 #ifdef FEAT_MOUSE 904 setmouse(); 905 #endif 906 #ifdef USE_ON_FLY_SCROLL 907 dont_scroll = TRUE; /* disallow scrolling here */ 908 #endif 909 hit_return_msg(); 910 911 do 912 { 913 /* Remember "got_int", if it is set vgetc() probably returns a 914 * CTRL-C, but we need to loop then. */ 915 had_got_int = got_int; 916 917 /* Don't do mappings here, we put the character back in the 918 * typeahead buffer. */ 919 ++no_mapping; 920 ++allow_keys; 921 c = safe_vgetc(); 922 if (had_got_int && !global_busy) 923 got_int = FALSE; 924 --no_mapping; 925 --allow_keys; 926 927 #ifdef FEAT_CLIPBOARD 928 /* Strange way to allow copying (yanking) a modeless selection at 929 * the hit-enter prompt. Use CTRL-Y, because the same is used in 930 * Cmdline-mode and it's harmless when there is no selection. */ 931 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 932 { 933 clip_copy_modeless_selection(TRUE); 934 c = K_IGNORE; 935 } 936 #endif 937 /* 938 * Allow scrolling back in the messages. 939 * Also accept scroll-down commands when messages fill the screen, 940 * to avoid that typing one 'j' too many makes the messages 941 * disappear. 942 */ 943 if (p_more && !p_cp) 944 { 945 if (c == 'b' || c == 'k' || c == 'u' || c == 'g' || c == K_UP) 946 { 947 /* scroll back to show older messages */ 948 do_more_prompt(c); 949 if (quit_more) 950 { 951 c = CAR; /* just pretend CR was hit */ 952 quit_more = FALSE; 953 got_int = FALSE; 954 } 955 else 956 { 957 c = K_IGNORE; 958 hit_return_msg(); 959 } 960 } 961 else if (msg_scrolled > Rows - 2 962 && (c == 'j' || c == K_DOWN || c == 'd')) 963 c = K_IGNORE; 964 } 965 } while ((had_got_int && c == Ctrl_C) 966 || c == K_IGNORE 967 #ifdef FEAT_GUI 968 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 969 #endif 970 #ifdef FEAT_MOUSE 971 || c == K_LEFTDRAG || c == K_LEFTRELEASE 972 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 973 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 974 || c == K_MOUSEDOWN || c == K_MOUSEUP 975 || (!mouse_has(MOUSE_RETURN) 976 && mouse_row < msg_row 977 && (c == K_LEFTMOUSE 978 || c == K_MIDDLEMOUSE 979 || c == K_RIGHTMOUSE 980 || c == K_X1MOUSE 981 || c == K_X2MOUSE)) 982 #endif 983 ); 984 ui_breakcheck(); 985 #ifdef FEAT_MOUSE 986 /* 987 * Avoid that the mouse-up event causes visual mode to start. 988 */ 989 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 990 || c == K_X1MOUSE || c == K_X2MOUSE) 991 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 992 else 993 #endif 994 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 995 { 996 char_u buf[2]; 997 998 /* Put the character back in the typeahead buffer. Don't use the 999 * stuff buffer, because lmaps wouldn't work. */ 1000 buf[0] = c; 1001 buf[1] = NUL; 1002 ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE); 1003 do_redraw = TRUE; /* need a redraw even though there is 1004 typeahead */ 1005 } 1006 } 1007 redir_off = FALSE; 1008 1009 /* 1010 * If the user hits ':', '?' or '/' we get a command line from the next 1011 * line. 1012 */ 1013 if (c == ':' || c == '?' || c == '/') 1014 { 1015 if (!exmode_active) 1016 cmdline_row = msg_row; 1017 skip_redraw = TRUE; /* skip redraw once */ 1018 do_redraw = FALSE; 1019 } 1020 1021 /* 1022 * If the window size changed set_shellsize() will redraw the screen. 1023 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1024 * typed. 1025 */ 1026 tmpState = State; 1027 State = oldState; /* restore State before set_shellsize */ 1028 #ifdef FEAT_MOUSE 1029 setmouse(); 1030 #endif 1031 msg_check(); 1032 1033 #if defined(UNIX) || defined(VMS) 1034 /* 1035 * When switching screens, we need to output an extra newline on exit. 1036 */ 1037 if (swapping_screen() && !termcap_active) 1038 newline_on_exit = TRUE; 1039 #endif 1040 1041 need_wait_return = FALSE; 1042 did_wait_return = TRUE; 1043 emsg_on_display = FALSE; /* can delete error message now */ 1044 lines_left = -1; /* reset lines_left at next msg_start() */ 1045 reset_last_sourcing(); 1046 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1047 (Rows - cmdline_row - 1) * Columns + sc_col) 1048 { 1049 vim_free(keep_msg); 1050 keep_msg = NULL; /* don't redisplay message, it's too long */ 1051 } 1052 1053 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1054 { 1055 starttermcap(); /* start termcap before redrawing */ 1056 shell_resized(); 1057 } 1058 else if (!skip_redraw 1059 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1060 { 1061 starttermcap(); /* start termcap before redrawing */ 1062 redraw_later(VALID); 1063 } 1064 } 1065 1066 /* 1067 * Write the hit-return prompt. 1068 */ 1069 static void 1070 hit_return_msg() 1071 { 1072 int save_p_more = p_more; 1073 1074 p_more = FALSE; /* don't want see this message when scrolling back */ 1075 if (msg_didout) /* start on a new line */ 1076 msg_putchar('\n'); 1077 if (got_int) 1078 MSG_PUTS(_("Interrupt: ")); 1079 1080 MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), hl_attr(HLF_R)); 1081 if (!msg_use_printf()) 1082 msg_clr_eos(); 1083 p_more = save_p_more; 1084 } 1085 1086 /* 1087 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1088 */ 1089 void 1090 set_keep_msg(s, attr) 1091 char_u *s; 1092 int attr; 1093 { 1094 vim_free(keep_msg); 1095 if (s != NULL && msg_silent == 0) 1096 keep_msg = vim_strsave(s); 1097 else 1098 keep_msg = NULL; 1099 keep_msg_more = FALSE; 1100 keep_msg_attr = attr; 1101 } 1102 1103 #if defined(FEAT_TERMRESPONSE) || defined(PROTO) 1104 /* 1105 * If there currently is a message being displayed, set "keep_msg" to it, so 1106 * that it will be displayed again after redraw. 1107 */ 1108 void 1109 set_keep_msg_from_hist() 1110 { 1111 if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0 1112 && (State & NORMAL)) 1113 set_keep_msg(last_msg_hist->msg, last_msg_hist->attr); 1114 } 1115 #endif 1116 1117 /* 1118 * Prepare for outputting characters in the command line. 1119 */ 1120 void 1121 msg_start() 1122 { 1123 int did_return = FALSE; 1124 1125 vim_free(keep_msg); 1126 keep_msg = NULL; /* don't display old message now */ 1127 if (!msg_scroll && full_screen) /* overwrite last message */ 1128 { 1129 msg_row = cmdline_row; 1130 msg_col = 1131 #ifdef FEAT_RIGHTLEFT 1132 cmdmsg_rl ? Columns - 1 : 1133 #endif 1134 0; 1135 } 1136 else if (msg_didout) /* start message on next line */ 1137 { 1138 msg_putchar('\n'); 1139 did_return = TRUE; 1140 if (exmode_active != EXMODE_NORMAL) 1141 cmdline_row = msg_row; 1142 } 1143 if (!msg_didany || lines_left < 0) 1144 msg_starthere(); 1145 if (msg_silent == 0) 1146 { 1147 msg_didout = FALSE; /* no output on current line yet */ 1148 cursor_off(); 1149 } 1150 1151 /* when redirecting, may need to start a new line. */ 1152 if (!did_return) 1153 redir_write((char_u *)"\n", -1); 1154 } 1155 1156 /* 1157 * Note that the current msg position is where messages start. 1158 */ 1159 void 1160 msg_starthere() 1161 { 1162 lines_left = cmdline_row; 1163 msg_didany = FALSE; 1164 } 1165 1166 void 1167 msg_putchar(c) 1168 int c; 1169 { 1170 msg_putchar_attr(c, 0); 1171 } 1172 1173 void 1174 msg_putchar_attr(c, attr) 1175 int c; 1176 int attr; 1177 { 1178 #ifdef FEAT_MBYTE 1179 char_u buf[MB_MAXBYTES + 1]; 1180 #else 1181 char_u buf[4]; 1182 #endif 1183 1184 if (IS_SPECIAL(c)) 1185 { 1186 buf[0] = K_SPECIAL; 1187 buf[1] = K_SECOND(c); 1188 buf[2] = K_THIRD(c); 1189 buf[3] = NUL; 1190 } 1191 else 1192 { 1193 #ifdef FEAT_MBYTE 1194 buf[(*mb_char2bytes)(c, buf)] = NUL; 1195 #else 1196 buf[0] = c; 1197 buf[1] = NUL; 1198 #endif 1199 } 1200 msg_puts_attr(buf, attr); 1201 } 1202 1203 void 1204 msg_outnum(n) 1205 long n; 1206 { 1207 char_u buf[20]; 1208 1209 sprintf((char *)buf, "%ld", n); 1210 msg_puts(buf); 1211 } 1212 1213 void 1214 msg_home_replace(fname) 1215 char_u *fname; 1216 { 1217 msg_home_replace_attr(fname, 0); 1218 } 1219 1220 #if defined(FEAT_FIND_ID) || defined(PROTO) 1221 void 1222 msg_home_replace_hl(fname) 1223 char_u *fname; 1224 { 1225 msg_home_replace_attr(fname, hl_attr(HLF_D)); 1226 } 1227 #endif 1228 1229 static void 1230 msg_home_replace_attr(fname, attr) 1231 char_u *fname; 1232 int attr; 1233 { 1234 char_u *name; 1235 1236 name = home_replace_save(NULL, fname); 1237 if (name != NULL) 1238 msg_outtrans_attr(name, attr); 1239 vim_free(name); 1240 } 1241 1242 /* 1243 * Output 'len' characters in 'str' (including NULs) with translation 1244 * if 'len' is -1, output upto a NUL character. 1245 * Use attributes 'attr'. 1246 * Return the number of characters it takes on the screen. 1247 */ 1248 int 1249 msg_outtrans(str) 1250 char_u *str; 1251 { 1252 return msg_outtrans_attr(str, 0); 1253 } 1254 1255 int 1256 msg_outtrans_attr(str, attr) 1257 char_u *str; 1258 int attr; 1259 { 1260 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1261 } 1262 1263 int 1264 msg_outtrans_len(str, len) 1265 char_u *str; 1266 int len; 1267 { 1268 return msg_outtrans_len_attr(str, len, 0); 1269 } 1270 1271 /* 1272 * Output one character at "p". Return pointer to the next character. 1273 * Handles multi-byte characters. 1274 */ 1275 char_u * 1276 msg_outtrans_one(p, attr) 1277 char_u *p; 1278 int attr; 1279 { 1280 #ifdef FEAT_MBYTE 1281 int l; 1282 1283 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1284 { 1285 msg_outtrans_len_attr(p, l, attr); 1286 return p + l; 1287 } 1288 #endif 1289 msg_puts_attr(transchar_byte(*p), attr); 1290 return p + 1; 1291 } 1292 1293 int 1294 msg_outtrans_len_attr(msgstr, len, attr) 1295 char_u *msgstr; 1296 int len; 1297 int attr; 1298 { 1299 int retval = 0; 1300 char_u *str = msgstr; 1301 char_u *plain_start = msgstr; 1302 char_u *s; 1303 #ifdef FEAT_MBYTE 1304 int mb_l; 1305 int c; 1306 #endif 1307 1308 /* if MSG_HIST flag set, add message to history */ 1309 if (attr & MSG_HIST) 1310 { 1311 add_msg_hist(str, len, attr); 1312 attr &= ~MSG_HIST; 1313 } 1314 1315 #ifdef FEAT_MBYTE 1316 /* If the string starts with a composing character first draw a space on 1317 * which the composing char can be drawn. */ 1318 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1319 msg_puts_attr((char_u *)" ", attr); 1320 #endif 1321 1322 /* 1323 * Go over the string. Special characters are translated and printed. 1324 * Normal characters are printed several at a time. 1325 */ 1326 while (--len >= 0) 1327 { 1328 #ifdef FEAT_MBYTE 1329 if (enc_utf8) 1330 /* Don't include composing chars after the end. */ 1331 mb_l = utfc_ptr2len_len(str, len + 1); 1332 else if (has_mbyte) 1333 mb_l = (*mb_ptr2len)(str); 1334 else 1335 mb_l = 1; 1336 if (has_mbyte && mb_l > 1) 1337 { 1338 c = (*mb_ptr2char)(str); 1339 if (vim_isprintc(c)) 1340 /* printable multi-byte char: count the cells. */ 1341 retval += (*mb_ptr2cells)(str); 1342 else 1343 { 1344 /* unprintable multi-byte char: print the printable chars so 1345 * far and the translation of the unprintable char. */ 1346 if (str > plain_start) 1347 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1348 attr); 1349 plain_start = str + mb_l; 1350 msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr); 1351 retval += char2cells(c); 1352 } 1353 len -= mb_l - 1; 1354 str += mb_l; 1355 } 1356 else 1357 #endif 1358 { 1359 s = transchar_byte(*str); 1360 if (s[1] != NUL) 1361 { 1362 /* unprintable char: print the printable chars so far and the 1363 * translation of the unprintable char. */ 1364 if (str > plain_start) 1365 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1366 attr); 1367 plain_start = str + 1; 1368 msg_puts_attr(s, attr == 0 ? hl_attr(HLF_8) : attr); 1369 } 1370 retval += ptr2cells(str); 1371 ++str; 1372 } 1373 } 1374 1375 if (str > plain_start) 1376 /* print the printable chars at the end */ 1377 msg_puts_attr_len(plain_start, (int)(str - plain_start), attr); 1378 1379 return retval; 1380 } 1381 1382 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1383 void 1384 msg_make(arg) 1385 char_u *arg; 1386 { 1387 int i; 1388 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1389 1390 arg = skipwhite(arg); 1391 for (i = 5; *arg && i >= 0; --i) 1392 if (*arg++ != str[i]) 1393 break; 1394 if (i < 0) 1395 { 1396 msg_putchar('\n'); 1397 for (i = 0; rs[i]; ++i) 1398 msg_putchar(rs[i] - 3); 1399 } 1400 } 1401 #endif 1402 1403 /* 1404 * Output the string 'str' upto a NUL character. 1405 * Return the number of characters it takes on the screen. 1406 * 1407 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1408 * following character and shown as <F1>, <S-Up> etc. Any other character 1409 * which is not printable shown in <> form. 1410 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1411 * If a character is displayed in one of these special ways, is also 1412 * highlighted (its highlight name is '8' in the p_hl variable). 1413 * Otherwise characters are not highlighted. 1414 * This function is used to show mappings, where we want to see how to type 1415 * the character/string -- webb 1416 */ 1417 int 1418 msg_outtrans_special(strstart, from) 1419 char_u *strstart; 1420 int from; /* TRUE for lhs of a mapping */ 1421 { 1422 char_u *str = strstart; 1423 int retval = 0; 1424 char_u *string; 1425 int attr; 1426 int len; 1427 1428 attr = hl_attr(HLF_8); 1429 while (*str != NUL) 1430 { 1431 /* Leading and trailing spaces need to be displayed in <> form. */ 1432 if ((str == strstart || str[1] == NUL) && *str == ' ') 1433 { 1434 string = (char_u *)"<Space>"; 1435 ++str; 1436 } 1437 else 1438 string = str2special(&str, from); 1439 len = vim_strsize(string); 1440 /* Highlight special keys */ 1441 msg_puts_attr(string, len > 1 1442 #ifdef FEAT_MBYTE 1443 && (*mb_ptr2len)(string) <= 1 1444 #endif 1445 ? attr : 0); 1446 retval += len; 1447 } 1448 return retval; 1449 } 1450 1451 /* 1452 * Return the printable string for the key codes at "*sp". 1453 * Used for translating the lhs or rhs of a mapping to printable chars. 1454 * Advances "sp" to the next code. 1455 */ 1456 char_u * 1457 str2special(sp, from) 1458 char_u **sp; 1459 int from; /* TRUE for lhs of mapping */ 1460 { 1461 int c; 1462 static char_u buf[7]; 1463 char_u *str = *sp; 1464 int modifiers = 0; 1465 int special = FALSE; 1466 1467 #ifdef FEAT_MBYTE 1468 if (has_mbyte) 1469 { 1470 char_u *p; 1471 1472 /* Try to un-escape a multi-byte character. Return the un-escaped 1473 * string if it is a multi-byte character. */ 1474 p = mb_unescape(sp); 1475 if (p != NULL) 1476 return p; 1477 } 1478 #endif 1479 1480 c = *str; 1481 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1482 { 1483 if (str[1] == KS_MODIFIER) 1484 { 1485 modifiers = str[2]; 1486 str += 3; 1487 c = *str; 1488 } 1489 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1490 { 1491 c = TO_SPECIAL(str[1], str[2]); 1492 str += 2; 1493 if (c == K_ZERO) /* display <Nul> as ^@ */ 1494 c = NUL; 1495 } 1496 if (IS_SPECIAL(c) || modifiers) /* special key */ 1497 special = TRUE; 1498 } 1499 *sp = str + 1; 1500 1501 #ifdef FEAT_MBYTE 1502 /* For multi-byte characters check for an illegal byte. */ 1503 if (has_mbyte && MB_BYTE2LEN(*str) > (*mb_ptr2len)(str)) 1504 { 1505 transchar_nonprint(buf, c); 1506 return buf; 1507 } 1508 #endif 1509 1510 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1511 * Use <Space> only for lhs of a mapping. */ 1512 if (special || char2cells(c) > 1 || (from && c == ' ')) 1513 return get_special_key_name(c, modifiers); 1514 buf[0] = c; 1515 buf[1] = NUL; 1516 return buf; 1517 } 1518 1519 /* 1520 * Translate a key sequence into special key names. 1521 */ 1522 void 1523 str2specialbuf(sp, buf, len) 1524 char_u *sp; 1525 char_u *buf; 1526 int len; 1527 { 1528 char_u *s; 1529 1530 *buf = NUL; 1531 while (*sp) 1532 { 1533 s = str2special(&sp, FALSE); 1534 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1535 STRCAT(buf, s); 1536 } 1537 } 1538 1539 /* 1540 * print line for :print or :list command 1541 */ 1542 void 1543 msg_prt_line(s, list) 1544 char_u *s; 1545 int list; 1546 { 1547 int c; 1548 int col = 0; 1549 int n_extra = 0; 1550 int c_extra = 0; 1551 char_u *p_extra = NULL; /* init to make SASC shut up */ 1552 int n; 1553 int attr= 0; 1554 char_u *trail = NULL; 1555 #ifdef FEAT_MBYTE 1556 int l; 1557 char_u buf[MB_MAXBYTES + 1]; 1558 #endif 1559 1560 if (curwin->w_p_list) 1561 list = TRUE; 1562 1563 /* find start of trailing whitespace */ 1564 if (list && lcs_trail) 1565 { 1566 trail = s + STRLEN(s); 1567 while (trail > s && vim_iswhite(trail[-1])) 1568 --trail; 1569 } 1570 1571 /* output a space for an empty line, otherwise the line will be 1572 * overwritten */ 1573 if (*s == NUL && !(list && lcs_eol != NUL)) 1574 msg_putchar(' '); 1575 1576 while (!got_int) 1577 { 1578 if (n_extra) 1579 { 1580 --n_extra; 1581 if (c_extra) 1582 c = c_extra; 1583 else 1584 c = *p_extra++; 1585 } 1586 #ifdef FEAT_MBYTE 1587 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1588 { 1589 col += (*mb_ptr2cells)(s); 1590 mch_memmove(buf, s, (size_t)l); 1591 buf[l] = NUL; 1592 msg_puts_attr(buf, attr); 1593 s += l; 1594 continue; 1595 } 1596 #endif 1597 else 1598 { 1599 attr = 0; 1600 c = *s++; 1601 if (c == TAB && (!list || lcs_tab1)) 1602 { 1603 /* tab amount depends on current column */ 1604 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1605 if (!list) 1606 { 1607 c = ' '; 1608 c_extra = ' '; 1609 } 1610 else 1611 { 1612 c = lcs_tab1; 1613 c_extra = lcs_tab2; 1614 attr = hl_attr(HLF_8); 1615 } 1616 } 1617 else if (c == NUL && list && lcs_eol != NUL) 1618 { 1619 p_extra = (char_u *)""; 1620 c_extra = NUL; 1621 n_extra = 1; 1622 c = lcs_eol; 1623 attr = hl_attr(HLF_AT); 1624 --s; 1625 } 1626 else if (c != NUL && (n = byte2cells(c)) > 1) 1627 { 1628 n_extra = n - 1; 1629 p_extra = transchar_byte(c); 1630 c_extra = NUL; 1631 c = *p_extra++; 1632 } 1633 else if (c == ' ' && trail != NULL && s > trail) 1634 { 1635 c = lcs_trail; 1636 attr = hl_attr(HLF_8); 1637 } 1638 } 1639 1640 if (c == NUL) 1641 break; 1642 1643 msg_putchar_attr(c, attr); 1644 col++; 1645 } 1646 msg_clr_eos(); 1647 } 1648 1649 #ifdef FEAT_MBYTE 1650 /* 1651 * Use screen_puts() to output one multi-byte character. 1652 * Return the pointer "s" advanced to the next character. 1653 */ 1654 static char_u * 1655 screen_puts_mbyte(s, l, attr) 1656 char_u *s; 1657 int l; 1658 int attr; 1659 { 1660 int cw; 1661 1662 msg_didout = TRUE; /* remember that line is not empty */ 1663 cw = (*mb_ptr2cells)(s); 1664 if (cw > 1 && ( 1665 #ifdef FEAT_RIGHTLEFT 1666 cmdmsg_rl ? msg_col <= 1 : 1667 #endif 1668 msg_col == Columns - 1)) 1669 { 1670 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1671 msg_screen_putchar('>', hl_attr(HLF_AT)); 1672 return s; 1673 } 1674 1675 screen_puts_len(s, l, msg_row, msg_col, attr); 1676 #ifdef FEAT_RIGHTLEFT 1677 if (cmdmsg_rl) 1678 { 1679 msg_col -= cw; 1680 if (msg_col == 0) 1681 { 1682 msg_col = Columns; 1683 ++msg_row; 1684 } 1685 } 1686 else 1687 #endif 1688 { 1689 msg_col += cw; 1690 if (msg_col >= Columns) 1691 { 1692 msg_col = 0; 1693 ++msg_row; 1694 } 1695 } 1696 return s + l; 1697 } 1698 #endif 1699 1700 /* 1701 * Output a string to the screen at position msg_row, msg_col. 1702 * Update msg_row and msg_col for the next message. 1703 */ 1704 void 1705 msg_puts(s) 1706 char_u *s; 1707 { 1708 msg_puts_attr(s, 0); 1709 } 1710 1711 void 1712 msg_puts_title(s) 1713 char_u *s; 1714 { 1715 msg_puts_attr(s, hl_attr(HLF_T)); 1716 } 1717 1718 /* 1719 * Show a message in such a way that it always fits in the line. Cut out a 1720 * part in the middle and replace it with "..." when necessary. 1721 * Does not handle multi-byte characters! 1722 */ 1723 void 1724 msg_puts_long_attr(longstr, attr) 1725 char_u *longstr; 1726 int attr; 1727 { 1728 msg_puts_long_len_attr(longstr, (int)STRLEN(longstr), attr); 1729 } 1730 1731 void 1732 msg_puts_long_len_attr(longstr, len, attr) 1733 char_u *longstr; 1734 int len; 1735 int attr; 1736 { 1737 int slen = len; 1738 int room; 1739 1740 room = Columns - msg_col; 1741 if (len > room && room >= 20) 1742 { 1743 slen = (room - 3) / 2; 1744 msg_outtrans_len_attr(longstr, slen, attr); 1745 msg_puts_attr((char_u *)"...", hl_attr(HLF_8)); 1746 } 1747 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 1748 } 1749 1750 /* 1751 * Basic function for writing a message with highlight attributes. 1752 */ 1753 void 1754 msg_puts_attr(s, attr) 1755 char_u *s; 1756 int attr; 1757 { 1758 msg_puts_attr_len(s, -1, attr); 1759 } 1760 1761 /* 1762 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 1763 * When "maxlen" is -1 there is no maximum length. 1764 * When "maxlen" is >= 0 the message is not put in the history. 1765 */ 1766 static void 1767 msg_puts_attr_len(str, maxlen, attr) 1768 char_u *str; 1769 int maxlen; 1770 int attr; 1771 { 1772 /* 1773 * If redirection is on, also write to the redirection file. 1774 */ 1775 redir_write(str, maxlen); 1776 1777 /* 1778 * Don't print anything when using ":silent cmd". 1779 */ 1780 if (msg_silent != 0) 1781 return; 1782 1783 /* if MSG_HIST flag set, add message to history */ 1784 if ((attr & MSG_HIST) && maxlen < 0) 1785 { 1786 add_msg_hist(str, -1, attr); 1787 attr &= ~MSG_HIST; 1788 } 1789 1790 /* 1791 * When writing something to the screen after it has scrolled, requires a 1792 * wait-return prompt later. Needed when scrolling, resetting 1793 * need_wait_return after some prompt, and then outputting something 1794 * without scrolling 1795 */ 1796 if (msg_scrolled != 0 && !msg_scrolled_ign) 1797 need_wait_return = TRUE; 1798 msg_didany = TRUE; /* remember that something was outputted */ 1799 1800 /* 1801 * If there is no valid screen, use fprintf so we can see error messages. 1802 * If termcap is not active, we may be writing in an alternate console 1803 * window, cursor positioning may not work correctly (window size may be 1804 * different, e.g. for Win32 console) or we just don't know where the 1805 * cursor is. 1806 */ 1807 if (msg_use_printf()) 1808 msg_puts_printf(str, maxlen); 1809 else 1810 msg_puts_display(str, maxlen, attr, FALSE); 1811 } 1812 1813 /* 1814 * The display part of msg_puts_attr_len(). 1815 * May be called recursively to display scroll-back text. 1816 */ 1817 static void 1818 msg_puts_display(str, maxlen, attr, recurse) 1819 char_u *str; 1820 int maxlen; 1821 int attr; 1822 int recurse; 1823 { 1824 char_u *s = str; 1825 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 1826 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 1827 #ifdef FEAT_MBYTE 1828 int l; 1829 int cw; 1830 #endif 1831 char_u *sb_str = str; 1832 int sb_col = msg_col; 1833 int wrap; 1834 1835 did_wait_return = FALSE; 1836 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 1837 { 1838 /* 1839 * We are at the end of the screen line when: 1840 * - When outputting a newline. 1841 * - When outputting a character in the last column. 1842 */ 1843 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 1844 #ifdef FEAT_RIGHTLEFT 1845 cmdmsg_rl 1846 ? ( 1847 msg_col <= 1 1848 || (*s == TAB && msg_col <= 7) 1849 # ifdef FEAT_MBYTE 1850 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2) 1851 # endif 1852 ) 1853 : 1854 #endif 1855 (msg_col + t_col >= Columns - 1 1856 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 1857 # ifdef FEAT_MBYTE 1858 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1859 && msg_col + t_col >= Columns - 2) 1860 # endif 1861 )))) 1862 { 1863 /* 1864 * The screen is scrolled up when at the last row (some terminals 1865 * scroll automatically, some don't. To avoid problems we scroll 1866 * ourselves). 1867 */ 1868 if (t_col > 0) 1869 /* output postponed text */ 1870 t_puts(&t_col, t_s, s, attr); 1871 1872 /* When no more prompt an no more room, truncate here */ 1873 if (msg_no_more && lines_left == 0) 1874 break; 1875 1876 /* Scroll the screen up one line. */ 1877 msg_scroll_up(); 1878 1879 msg_row = Rows - 2; 1880 if (msg_col >= Columns) /* can happen after screen resize */ 1881 msg_col = Columns - 1; 1882 1883 /* Display char in last column before showing more-prompt. */ 1884 if (*s >= ' ' 1885 #ifdef FEAT_RIGHTLEFT 1886 && !cmdmsg_rl 1887 #endif 1888 ) 1889 { 1890 #ifdef FEAT_MBYTE 1891 if (has_mbyte) 1892 { 1893 if (enc_utf8 && maxlen >= 0) 1894 /* avoid including composing chars after the end */ 1895 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 1896 else 1897 l = (*mb_ptr2len)(s); 1898 s = screen_puts_mbyte(s, l, attr); 1899 } 1900 else 1901 #endif 1902 msg_screen_putchar(*s++, attr); 1903 } 1904 1905 if (p_more) 1906 /* store text for scrolling back */ 1907 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1908 1909 inc_msg_scrolled(); 1910 need_wait_return = TRUE; /* may need wait_return in main() */ 1911 if (must_redraw < VALID) 1912 must_redraw = VALID; 1913 redraw_cmdline = TRUE; 1914 if (cmdline_row > 0 && !exmode_active) 1915 --cmdline_row; 1916 1917 /* 1918 * If screen is completely filled and 'more' is set then wait 1919 * for a character. 1920 */ 1921 if (p_more && --lines_left == 0 && State != HITRETURN 1922 && !msg_no_more && !exmode_active) 1923 { 1924 #ifdef FEAT_CON_DIALOG 1925 if (do_more_prompt(NUL)) 1926 s = confirm_msg_tail; 1927 #else 1928 (void)do_more_prompt(NUL); 1929 #endif 1930 if (quit_more) 1931 return; 1932 } 1933 1934 /* When we displayed a char in last column need to check if there 1935 * is still more. */ 1936 if (*s >= ' ' 1937 #ifdef FEAT_RIGHTLEFT 1938 && !cmdmsg_rl 1939 #endif 1940 ) 1941 continue; 1942 } 1943 1944 wrap = *s == '\n' 1945 || msg_col + t_col >= Columns 1946 #ifdef FEAT_MBYTE 1947 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1948 && msg_col + t_col >= Columns - 1) 1949 #endif 1950 ; 1951 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 1952 || *s == '\t' || *s == BELL)) 1953 /* output any postponed text */ 1954 t_puts(&t_col, t_s, s, attr); 1955 1956 if (wrap && p_more && !recurse) 1957 /* store text for scrolling back */ 1958 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1959 1960 if (*s == '\n') /* go to next line */ 1961 { 1962 msg_didout = FALSE; /* remember that line is empty */ 1963 #ifdef FEAT_RIGHTLEFT 1964 if (cmdmsg_rl) 1965 msg_col = Columns - 1; 1966 else 1967 #endif 1968 msg_col = 0; 1969 if (++msg_row >= Rows) /* safety check */ 1970 msg_row = Rows - 1; 1971 } 1972 else if (*s == '\r') /* go to column 0 */ 1973 { 1974 msg_col = 0; 1975 } 1976 else if (*s == '\b') /* go to previous char */ 1977 { 1978 if (msg_col) 1979 --msg_col; 1980 } 1981 else if (*s == TAB) /* translate Tab into spaces */ 1982 { 1983 do 1984 msg_screen_putchar(' ', attr); 1985 while (msg_col & 7); 1986 } 1987 else if (*s == BELL) /* beep (from ":sh") */ 1988 vim_beep(); 1989 else 1990 { 1991 #ifdef FEAT_MBYTE 1992 if (has_mbyte) 1993 { 1994 cw = (*mb_ptr2cells)(s); 1995 if (enc_utf8 && maxlen >= 0) 1996 /* avoid including composing chars after the end */ 1997 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 1998 else 1999 l = (*mb_ptr2len)(s); 2000 } 2001 else 2002 { 2003 cw = 1; 2004 l = 1; 2005 } 2006 #endif 2007 /* When drawing from right to left or when a double-wide character 2008 * doesn't fit, draw a single character here. Otherwise collect 2009 * characters and draw them all at once later. */ 2010 #if defined(FEAT_RIGHTLEFT) || defined(FEAT_MBYTE) 2011 if ( 2012 # ifdef FEAT_RIGHTLEFT 2013 cmdmsg_rl 2014 # ifdef FEAT_MBYTE 2015 || 2016 # endif 2017 # endif 2018 # ifdef FEAT_MBYTE 2019 (cw > 1 && msg_col + t_col >= Columns - 1) 2020 # endif 2021 ) 2022 { 2023 # ifdef FEAT_MBYTE 2024 if (l > 1) 2025 s = screen_puts_mbyte(s, l, attr) - 1; 2026 else 2027 # endif 2028 msg_screen_putchar(*s, attr); 2029 } 2030 else 2031 #endif 2032 { 2033 /* postpone this character until later */ 2034 if (t_col == 0) 2035 t_s = s; 2036 #ifdef FEAT_MBYTE 2037 t_col += cw; 2038 s += l - 1; 2039 #else 2040 ++t_col; 2041 #endif 2042 } 2043 } 2044 ++s; 2045 } 2046 2047 /* output any postponed text */ 2048 if (t_col > 0) 2049 t_puts(&t_col, t_s, s, attr); 2050 if (p_more && !recurse) 2051 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2052 2053 msg_check(); 2054 } 2055 2056 /* 2057 * Scroll the screen up one line for displaying the next message line. 2058 */ 2059 static void 2060 msg_scroll_up() 2061 { 2062 #ifdef FEAT_GUI 2063 /* Remove the cursor before scrolling, ScreenLines[] is going 2064 * to become invalid. */ 2065 if (gui.in_use) 2066 gui_undraw_cursor(); 2067 #endif 2068 /* scrolling up always works */ 2069 screen_del_lines(0, 0, 1, (int)Rows, TRUE, NULL); 2070 2071 if (!can_clear((char_u *)" ")) 2072 { 2073 /* Scrolling up doesn't result in the right background. Set the 2074 * background here. It's not efficient, but avoids that we have to do 2075 * it all over the code. */ 2076 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2077 2078 /* Also clear the last char of the last but one line if it was not 2079 * cleared before to avoid a scroll-up. */ 2080 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2081 screen_fill((int)Rows - 2, (int)Rows - 1, 2082 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2083 } 2084 } 2085 2086 /* 2087 * Increment "msg_scrolled". 2088 */ 2089 static void 2090 inc_msg_scrolled() 2091 { 2092 #ifdef FEAT_EVAL 2093 if (*get_vim_var_str(VV_SCROLLSTART) == NUL) 2094 { 2095 char_u *p = sourcing_name; 2096 char_u *tofree = NULL; 2097 int len; 2098 2099 /* v:scrollstart is empty, set it to the script/function name and line 2100 * number */ 2101 if (p == NULL) 2102 p = (char_u *)_("Unknown"); 2103 else 2104 { 2105 len = STRLEN(p) + 40; 2106 tofree = alloc(len); 2107 if (tofree != NULL) 2108 { 2109 vim_snprintf((char *)tofree, len, _("%s line %ld"), 2110 p, (long)sourcing_lnum); 2111 p = tofree; 2112 } 2113 } 2114 set_vim_var_string(VV_SCROLLSTART, p, -1); 2115 vim_free(tofree); 2116 } 2117 #endif 2118 ++msg_scrolled; 2119 } 2120 2121 /* 2122 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2123 * store the displayed text and remember where screen lines start. 2124 */ 2125 typedef struct msgchunk_S msgchunk_T; 2126 struct msgchunk_S 2127 { 2128 msgchunk_T *sb_next; 2129 msgchunk_T *sb_prev; 2130 char sb_eol; /* TRUE when line ends after this text */ 2131 int sb_msg_col; /* column in which text starts */ 2132 int sb_attr; /* text attributes */ 2133 char_u sb_text[1]; /* text to be displayed, actually longer */ 2134 }; 2135 2136 static msgchunk_T *last_msgchunk = NULL; /* last displayed text */ 2137 2138 static msgchunk_T *msg_sb_start __ARGS((msgchunk_T *mps)); 2139 static msgchunk_T *disp_sb_line __ARGS((int row, msgchunk_T *smp)); 2140 2141 static int do_clear_sb_text = FALSE; /* clear text on next msg */ 2142 2143 /* 2144 * Store part of a printed message for displaying when scrolling back. 2145 */ 2146 static void 2147 store_sb_text(sb_str, s, attr, sb_col, finish) 2148 char_u **sb_str; /* start of string */ 2149 char_u *s; /* just after string */ 2150 int attr; 2151 int *sb_col; 2152 int finish; /* line ends */ 2153 { 2154 msgchunk_T *mp; 2155 2156 if (do_clear_sb_text) 2157 { 2158 clear_sb_text(); 2159 do_clear_sb_text = FALSE; 2160 } 2161 2162 if (s > *sb_str) 2163 { 2164 mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str))); 2165 if (mp != NULL) 2166 { 2167 mp->sb_eol = finish; 2168 mp->sb_msg_col = *sb_col; 2169 mp->sb_attr = attr; 2170 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2171 2172 if (last_msgchunk == NULL) 2173 { 2174 last_msgchunk = mp; 2175 mp->sb_prev = NULL; 2176 } 2177 else 2178 { 2179 mp->sb_prev = last_msgchunk; 2180 last_msgchunk->sb_next = mp; 2181 last_msgchunk = mp; 2182 } 2183 mp->sb_next = NULL; 2184 } 2185 } 2186 else if (finish && last_msgchunk != NULL) 2187 last_msgchunk->sb_eol = TRUE; 2188 2189 *sb_str = s; 2190 *sb_col = 0; 2191 } 2192 2193 /* 2194 * Finished showing messages, clear the scroll-back text on the next message. 2195 */ 2196 void 2197 may_clear_sb_text() 2198 { 2199 do_clear_sb_text = TRUE; 2200 } 2201 2202 /* 2203 * Clear any text remembered for scrolling back. 2204 * Called when redrawing the screen. 2205 */ 2206 void 2207 clear_sb_text() 2208 { 2209 msgchunk_T *mp; 2210 2211 while (last_msgchunk != NULL) 2212 { 2213 mp = last_msgchunk->sb_prev; 2214 vim_free(last_msgchunk); 2215 last_msgchunk = mp; 2216 } 2217 } 2218 2219 /* 2220 * "g<" command. 2221 */ 2222 void 2223 show_sb_text() 2224 { 2225 msgchunk_T *mp; 2226 2227 /* Only show somethign if there is more than one line, otherwise it looks 2228 * weird, typing a command without output results in one line. */ 2229 mp = msg_sb_start(last_msgchunk); 2230 if (mp == NULL || mp->sb_prev == NULL) 2231 vim_beep(); 2232 else 2233 { 2234 do_more_prompt('G'); 2235 wait_return(FALSE); 2236 } 2237 } 2238 2239 /* 2240 * Move to the start of screen line in already displayed text. 2241 */ 2242 static msgchunk_T * 2243 msg_sb_start(mps) 2244 msgchunk_T *mps; 2245 { 2246 msgchunk_T *mp = mps; 2247 2248 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2249 mp = mp->sb_prev; 2250 return mp; 2251 } 2252 2253 /* 2254 * Display a screen line from previously displayed text at row "row". 2255 * Returns a pointer to the text for the next line (can be NULL). 2256 */ 2257 static msgchunk_T * 2258 disp_sb_line(row, smp) 2259 int row; 2260 msgchunk_T *smp; 2261 { 2262 msgchunk_T *mp = smp; 2263 char_u *p; 2264 2265 for (;;) 2266 { 2267 msg_row = row; 2268 msg_col = mp->sb_msg_col; 2269 p = mp->sb_text; 2270 if (*p == '\n') /* don't display the line break */ 2271 ++p; 2272 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2273 if (mp->sb_eol || mp->sb_next == NULL) 2274 break; 2275 mp = mp->sb_next; 2276 } 2277 return mp->sb_next; 2278 } 2279 2280 /* 2281 * Output any postponed text for msg_puts_attr_len(). 2282 */ 2283 static void 2284 t_puts(t_col, t_s, s, attr) 2285 int *t_col; 2286 char_u *t_s; 2287 char_u *s; 2288 int attr; 2289 { 2290 /* output postponed text */ 2291 msg_didout = TRUE; /* remember that line is not empty */ 2292 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2293 msg_col += *t_col; 2294 *t_col = 0; 2295 #ifdef FEAT_MBYTE 2296 /* If the string starts with a composing character don't increment the 2297 * column position for it. */ 2298 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2299 --msg_col; 2300 #endif 2301 if (msg_col >= Columns) 2302 { 2303 msg_col = 0; 2304 ++msg_row; 2305 } 2306 } 2307 2308 /* 2309 * Returns TRUE when messages should be printed with mch_errmsg(). 2310 * This is used when there is no valid screen, so we can see error messages. 2311 * If termcap is not active, we may be writing in an alternate console 2312 * window, cursor positioning may not work correctly (window size may be 2313 * different, e.g. for Win32 console) or we just don't know where the 2314 * cursor is. 2315 */ 2316 int 2317 msg_use_printf() 2318 { 2319 return (!msg_check_screen() 2320 #if defined(WIN3264) && !defined(FEAT_GUI_MSWIN) 2321 || !termcap_active 2322 #endif 2323 || (swapping_screen() && !termcap_active) 2324 ); 2325 } 2326 2327 /* 2328 * Print a message when there is no valid screen. 2329 */ 2330 static void 2331 msg_puts_printf(str, maxlen) 2332 char_u *str; 2333 int maxlen; 2334 { 2335 char_u *s = str; 2336 char_u buf[4]; 2337 char_u *p; 2338 2339 #ifdef WIN3264 2340 if (!(silent_mode && p_verbose == 0)) 2341 mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */ 2342 #endif 2343 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 2344 { 2345 if (!(silent_mode && p_verbose == 0)) 2346 { 2347 /* NL --> CR NL translation (for Unix, not for "--version") */ 2348 /* NL --> CR translation (for Mac) */ 2349 p = &buf[0]; 2350 if (*s == '\n' && !info_message) 2351 *p++ = '\r'; 2352 #if defined(USE_CR) && !defined(MACOS_X_UNIX) 2353 else 2354 #endif 2355 *p++ = *s; 2356 *p = '\0'; 2357 if (info_message) /* informative message, not an error */ 2358 mch_msg((char *)buf); 2359 else 2360 mch_errmsg((char *)buf); 2361 } 2362 2363 /* primitive way to compute the current column */ 2364 #ifdef FEAT_RIGHTLEFT 2365 if (cmdmsg_rl) 2366 { 2367 if (*s == '\r' || *s == '\n') 2368 msg_col = Columns - 1; 2369 else 2370 --msg_col; 2371 } 2372 else 2373 #endif 2374 { 2375 if (*s == '\r' || *s == '\n') 2376 msg_col = 0; 2377 else 2378 ++msg_col; 2379 } 2380 ++s; 2381 } 2382 msg_didout = TRUE; /* assume that line is not empty */ 2383 2384 #ifdef WIN3264 2385 if (!(silent_mode && p_verbose == 0)) 2386 mch_settmode(TMODE_RAW); 2387 #endif 2388 } 2389 2390 /* 2391 * Show the more-prompt and handle the user response. 2392 * This takes care of scrolling back and displaying previously displayed text. 2393 * When at hit-enter prompt "typed_char" is the already typed character, 2394 * otherwise it's NUL. 2395 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2396 */ 2397 static int 2398 do_more_prompt(typed_char) 2399 int typed_char; 2400 { 2401 int used_typed_char = typed_char; 2402 int oldState = State; 2403 int c; 2404 #ifdef FEAT_CON_DIALOG 2405 int retval = FALSE; 2406 #endif 2407 int scroll; 2408 msgchunk_T *mp_last = NULL; 2409 msgchunk_T *mp; 2410 int i; 2411 2412 if (typed_char == 'G') 2413 { 2414 /* "g<": Find first line on the last page. */ 2415 mp_last = msg_sb_start(last_msgchunk); 2416 for (i = 0; i < Rows - 2 && mp_last != NULL 2417 && mp_last->sb_prev != NULL; ++i) 2418 mp_last = msg_sb_start(mp_last->sb_prev); 2419 } 2420 2421 State = ASKMORE; 2422 #ifdef FEAT_MOUSE 2423 setmouse(); 2424 #endif 2425 if (typed_char == NUL) 2426 msg_moremsg(FALSE); 2427 for (;;) 2428 { 2429 /* 2430 * Get a typed character directly from the user. 2431 */ 2432 if (used_typed_char != NUL) 2433 { 2434 c = used_typed_char; /* was typed at hit-enter prompt */ 2435 used_typed_char = NUL; 2436 } 2437 else 2438 c = get_keystroke(); 2439 2440 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2441 if (c == K_MENU) 2442 { 2443 int idx = get_menu_index(current_menu, ASKMORE); 2444 2445 /* Used a menu. If it starts with CTRL-Y, it must 2446 * be a "Copy" for the clipboard. Otherwise 2447 * assume that we end */ 2448 if (idx == MENU_INDEX_INVALID) 2449 continue; 2450 c = *current_menu->strings[idx]; 2451 if (c != NUL && current_menu->strings[idx][1] != NUL) 2452 ins_typebuf(current_menu->strings[idx] + 1, 2453 current_menu->noremap[idx], 0, TRUE, 2454 current_menu->silent[idx]); 2455 } 2456 #endif 2457 2458 scroll = 0; 2459 switch (c) 2460 { 2461 case BS: /* scroll one line back */ 2462 case K_BS: 2463 case 'k': 2464 case K_UP: 2465 scroll = -1; 2466 break; 2467 2468 case CAR: /* one extra line */ 2469 case NL: 2470 case 'j': 2471 case K_DOWN: 2472 scroll = 1; 2473 break; 2474 2475 case 'u': /* Up half a page */ 2476 case K_PAGEUP: 2477 scroll = -(Rows / 2); 2478 break; 2479 2480 case 'd': /* Down half a page */ 2481 scroll = Rows / 2; 2482 break; 2483 2484 case 'b': /* one page back */ 2485 scroll = -(Rows - 1); 2486 break; 2487 2488 case ' ': /* one extra page */ 2489 case K_PAGEDOWN: 2490 case K_LEFTMOUSE: 2491 scroll = Rows - 1; 2492 break; 2493 2494 case 'g': /* all the way back to the start */ 2495 scroll = -999999; 2496 break; 2497 2498 case 'G': /* all the way to the end */ 2499 scroll = 999999; 2500 lines_left = 999999; 2501 break; 2502 2503 case ':': /* start new command line */ 2504 #ifdef FEAT_CON_DIALOG 2505 if (!confirm_msg_used) 2506 #endif 2507 { 2508 /* Since got_int is set all typeahead will be flushed, but we 2509 * want to keep this ':', remember that in a special way. */ 2510 typeahead_noflush(':'); 2511 cmdline_row = Rows - 1; /* put ':' on this line */ 2512 skip_redraw = TRUE; /* skip redraw once */ 2513 need_wait_return = FALSE; /* don't wait in main() */ 2514 } 2515 /*FALLTHROUGH*/ 2516 case 'q': /* quit */ 2517 case Ctrl_C: 2518 case ESC: 2519 #ifdef FEAT_CON_DIALOG 2520 if (confirm_msg_used) 2521 { 2522 /* Jump to the choices of the dialog. */ 2523 retval = TRUE; 2524 lines_left = Rows - 1; 2525 } 2526 else 2527 #endif 2528 { 2529 got_int = TRUE; 2530 quit_more = TRUE; 2531 } 2532 break; 2533 2534 #ifdef FEAT_CLIPBOARD 2535 case Ctrl_Y: 2536 /* Strange way to allow copying (yanking) a modeless 2537 * selection at the more prompt. Use CTRL-Y, 2538 * because the same is used in Cmdline-mode and at the 2539 * hit-enter prompt. However, scrolling one line up 2540 * might be expected... */ 2541 if (clip_star.state == SELECT_DONE) 2542 clip_copy_modeless_selection(TRUE); 2543 continue; 2544 #endif 2545 default: /* no valid response */ 2546 msg_moremsg(TRUE); 2547 continue; 2548 } 2549 2550 if (scroll != 0) 2551 { 2552 if (scroll < 0) 2553 { 2554 /* go to start of last line */ 2555 if (mp_last == NULL) 2556 mp = msg_sb_start(last_msgchunk); 2557 else if (mp_last->sb_prev != NULL) 2558 mp = msg_sb_start(mp_last->sb_prev); 2559 else 2560 mp = NULL; 2561 2562 /* go to start of line at top of the screen */ 2563 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2564 ++i) 2565 mp = msg_sb_start(mp->sb_prev); 2566 2567 if (mp != NULL && mp->sb_prev != NULL) 2568 { 2569 /* Find line to be displayed at top. */ 2570 for (i = 0; i > scroll; --i) 2571 { 2572 if (mp == NULL || mp->sb_prev == NULL) 2573 break; 2574 mp = msg_sb_start(mp->sb_prev); 2575 if (mp_last == NULL) 2576 mp_last = msg_sb_start(last_msgchunk); 2577 else 2578 mp_last = msg_sb_start(mp_last->sb_prev); 2579 } 2580 2581 if (scroll == -1 && screen_ins_lines(0, 0, 1, 2582 (int)Rows, NULL) == OK) 2583 { 2584 /* display line at top */ 2585 (void)disp_sb_line(0, mp); 2586 } 2587 else 2588 { 2589 /* redisplay all lines */ 2590 screenclear(); 2591 for (i = 0; i < Rows - 1; ++i) 2592 mp = disp_sb_line(i, mp); 2593 } 2594 scroll = 0; 2595 } 2596 } 2597 else 2598 { 2599 /* First display any text that we scrolled back. */ 2600 while (scroll > 0 && mp_last != NULL) 2601 { 2602 /* scroll up, display line at bottom */ 2603 msg_scroll_up(); 2604 inc_msg_scrolled(); 2605 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2606 (int)Columns, ' ', ' ', 0); 2607 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2608 --scroll; 2609 } 2610 } 2611 2612 if (scroll < 0 || (scroll == 0 && mp_last != NULL)) 2613 { 2614 /* displayed the requested text, more prompt again */ 2615 screen_fill((int)Rows - 1, (int)Rows, 0, 2616 (int)Columns, ' ', ' ', 0); 2617 msg_moremsg(FALSE); 2618 continue; 2619 } 2620 2621 /* display more text, return to caller */ 2622 lines_left = scroll; 2623 } 2624 2625 break; 2626 } 2627 2628 /* clear the --more-- message */ 2629 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2630 State = oldState; 2631 #ifdef FEAT_MOUSE 2632 setmouse(); 2633 #endif 2634 if (quit_more) 2635 { 2636 msg_row = Rows - 1; 2637 msg_col = 0; 2638 } 2639 #ifdef FEAT_RIGHTLEFT 2640 else if (cmdmsg_rl) 2641 msg_col = Columns - 1; 2642 #endif 2643 2644 #ifdef FEAT_CON_DIALOG 2645 return retval; 2646 #else 2647 return FALSE; 2648 #endif 2649 } 2650 2651 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 2652 2653 #ifdef mch_errmsg 2654 # undef mch_errmsg 2655 #endif 2656 #ifdef mch_msg 2657 # undef mch_msg 2658 #endif 2659 2660 /* 2661 * Give an error message. To be used when the screen hasn't been initialized 2662 * yet. When stderr can't be used, collect error messages until the GUI has 2663 * started and they can be displayed in a message box. 2664 */ 2665 void 2666 mch_errmsg(str) 2667 char *str; 2668 { 2669 int len; 2670 2671 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2672 /* On Unix use stderr if it's a tty. 2673 * When not going to start the GUI also use stderr. 2674 * On Mac, when started from Finder, stderr is the console. */ 2675 if ( 2676 # ifdef UNIX 2677 # ifdef MACOS_X_UNIX 2678 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2679 # else 2680 isatty(2) 2681 # endif 2682 # ifdef FEAT_GUI 2683 || 2684 # endif 2685 # endif 2686 # ifdef FEAT_GUI 2687 !(gui.in_use || gui.starting) 2688 # endif 2689 ) 2690 { 2691 fprintf(stderr, "%s", str); 2692 return; 2693 } 2694 #endif 2695 2696 /* avoid a delay for a message that isn't there */ 2697 emsg_on_display = FALSE; 2698 2699 len = (int)STRLEN(str) + 1; 2700 if (error_ga.ga_growsize == 0) 2701 { 2702 error_ga.ga_growsize = 80; 2703 error_ga.ga_itemsize = 1; 2704 } 2705 if (ga_grow(&error_ga, len) == OK) 2706 { 2707 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 2708 (char_u *)str, len); 2709 #ifdef UNIX 2710 /* remove CR characters, they are displayed */ 2711 { 2712 char_u *p; 2713 2714 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 2715 for (;;) 2716 { 2717 p = vim_strchr(p, '\r'); 2718 if (p == NULL) 2719 break; 2720 *p = ' '; 2721 } 2722 } 2723 #endif 2724 --len; /* don't count the NUL at the end */ 2725 error_ga.ga_len += len; 2726 } 2727 } 2728 2729 /* 2730 * Give a message. To be used when the screen hasn't been initialized yet. 2731 * When there is no tty, collect messages until the GUI has started and they 2732 * can be displayed in a message box. 2733 */ 2734 void 2735 mch_msg(str) 2736 char *str; 2737 { 2738 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2739 /* On Unix use stdout if we have a tty. This allows "vim -h | more" and 2740 * uses mch_errmsg() when started from the desktop. 2741 * When not going to start the GUI also use stdout. 2742 * On Mac, when started from Finder, stderr is the console. */ 2743 if ( 2744 # ifdef UNIX 2745 # ifdef MACOS_X_UNIX 2746 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2747 # else 2748 isatty(2) 2749 # endif 2750 # ifdef FEAT_GUI 2751 || 2752 # endif 2753 # endif 2754 # ifdef FEAT_GUI 2755 !(gui.in_use || gui.starting) 2756 # endif 2757 ) 2758 { 2759 printf("%s", str); 2760 return; 2761 } 2762 # endif 2763 mch_errmsg(str); 2764 } 2765 #endif /* USE_MCH_ERRMSG */ 2766 2767 /* 2768 * Put a character on the screen at the current message position and advance 2769 * to the next position. Only for printable ASCII! 2770 */ 2771 static void 2772 msg_screen_putchar(c, attr) 2773 int c; 2774 int attr; 2775 { 2776 msg_didout = TRUE; /* remember that line is not empty */ 2777 screen_putchar(c, msg_row, msg_col, attr); 2778 #ifdef FEAT_RIGHTLEFT 2779 if (cmdmsg_rl) 2780 { 2781 if (--msg_col == 0) 2782 { 2783 msg_col = Columns; 2784 ++msg_row; 2785 } 2786 } 2787 else 2788 #endif 2789 { 2790 if (++msg_col >= Columns) 2791 { 2792 msg_col = 0; 2793 ++msg_row; 2794 } 2795 } 2796 } 2797 2798 void 2799 msg_moremsg(full) 2800 int full; 2801 { 2802 int attr; 2803 char_u *s = (char_u *)_("-- More --"); 2804 2805 attr = hl_attr(HLF_M); 2806 screen_puts(s, (int)Rows - 1, 0, attr); 2807 if (full) 2808 screen_puts((char_u *) 2809 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 2810 (int)Rows - 1, vim_strsize(s), attr); 2811 } 2812 2813 /* 2814 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 2815 * exmode_active. 2816 */ 2817 void 2818 repeat_message() 2819 { 2820 if (State == ASKMORE) 2821 { 2822 msg_moremsg(TRUE); /* display --more-- message again */ 2823 msg_row = Rows - 1; 2824 } 2825 #ifdef FEAT_CON_DIALOG 2826 else if (State == CONFIRM) 2827 { 2828 display_confirm_msg(); /* display ":confirm" message again */ 2829 msg_row = Rows - 1; 2830 } 2831 #endif 2832 else if (State == EXTERNCMD) 2833 { 2834 windgoto(msg_row, msg_col); /* put cursor back */ 2835 } 2836 else if (State == HITRETURN || State == SETWSIZE) 2837 { 2838 hit_return_msg(); 2839 msg_row = Rows - 1; 2840 } 2841 } 2842 2843 /* 2844 * msg_check_screen - check if the screen is initialized. 2845 * Also check msg_row and msg_col, if they are too big it may cause a crash. 2846 * While starting the GUI the terminal codes will be set for the GUI, but the 2847 * output goes to the terminal. Don't use the terminal codes then. 2848 */ 2849 static int 2850 msg_check_screen() 2851 { 2852 if (!full_screen || !screen_valid(FALSE)) 2853 return FALSE; 2854 2855 if (msg_row >= Rows) 2856 msg_row = Rows - 1; 2857 if (msg_col >= Columns) 2858 msg_col = Columns - 1; 2859 return TRUE; 2860 } 2861 2862 /* 2863 * Clear from current message position to end of screen. 2864 * Skip this when ":silent" was used, no need to clear for redirection. 2865 */ 2866 void 2867 msg_clr_eos() 2868 { 2869 if (msg_silent == 0) 2870 msg_clr_eos_force(); 2871 } 2872 2873 /* 2874 * Clear from current message position to end of screen. 2875 * Note: msg_col is not updated, so we remember the end of the message 2876 * for msg_check(). 2877 */ 2878 void 2879 msg_clr_eos_force() 2880 { 2881 if (msg_use_printf()) 2882 { 2883 if (full_screen) /* only when termcap codes are valid */ 2884 { 2885 if (*T_CD) 2886 out_str(T_CD); /* clear to end of display */ 2887 else if (*T_CE) 2888 out_str(T_CE); /* clear to end of line */ 2889 } 2890 } 2891 else 2892 { 2893 #ifdef FEAT_RIGHTLEFT 2894 if (cmdmsg_rl) 2895 { 2896 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 2897 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2898 } 2899 else 2900 #endif 2901 { 2902 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 2903 ' ', ' ', 0); 2904 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2905 } 2906 } 2907 } 2908 2909 /* 2910 * Clear the command line. 2911 */ 2912 void 2913 msg_clr_cmdline() 2914 { 2915 msg_row = cmdline_row; 2916 msg_col = 0; 2917 msg_clr_eos_force(); 2918 } 2919 2920 /* 2921 * end putting a message on the screen 2922 * call wait_return if the message does not fit in the available space 2923 * return TRUE if wait_return not called. 2924 */ 2925 int 2926 msg_end() 2927 { 2928 /* 2929 * if the string is larger than the window, 2930 * or the ruler option is set and we run into it, 2931 * we have to redraw the window. 2932 * Do not do this if we are abandoning the file or editing the command line. 2933 */ 2934 if (!exiting && need_wait_return && !(State & CMDLINE)) 2935 { 2936 wait_return(FALSE); 2937 return FALSE; 2938 } 2939 out_flush(); 2940 return TRUE; 2941 } 2942 2943 /* 2944 * If the written message runs into the shown command or ruler, we have to 2945 * wait for hit-return and redraw the window later. 2946 */ 2947 void 2948 msg_check() 2949 { 2950 if (msg_row == Rows - 1 && msg_col >= sc_col) 2951 { 2952 need_wait_return = TRUE; 2953 redraw_cmdline = TRUE; 2954 } 2955 } 2956 2957 /* 2958 * May write a string to the redirection file. 2959 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 2960 */ 2961 static void 2962 redir_write(str, maxlen) 2963 char_u *str; 2964 int maxlen; 2965 { 2966 char_u *s = str; 2967 static int cur_col = 0; 2968 2969 /* Don't do anything for displaying prompts and the like. */ 2970 if (redir_off) 2971 return; 2972 2973 /* 2974 * If 'verbosefile' is set write message in that file. 2975 * Must come before the rest because of updating "msg_col". 2976 */ 2977 if (*p_vfile != NUL) 2978 verbose_write(s, maxlen); 2979 2980 if (redir_fd != NULL 2981 #ifdef FEAT_EVAL 2982 || redir_reg || redir_vname 2983 #endif 2984 ) 2985 { 2986 /* If the string doesn't start with CR or NL, go to msg_col */ 2987 if (*s != '\n' && *s != '\r') 2988 { 2989 while (cur_col < msg_col) 2990 { 2991 #ifdef FEAT_EVAL 2992 if (redir_reg) 2993 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 2994 else if (redir_vname) 2995 var_redir_str((char_u *)" ", -1); 2996 else if (redir_fd) 2997 #endif 2998 fputs(" ", redir_fd); 2999 ++cur_col; 3000 } 3001 } 3002 3003 #ifdef FEAT_EVAL 3004 if (redir_reg) 3005 write_reg_contents(redir_reg, s, maxlen, TRUE); 3006 if (redir_vname) 3007 var_redir_str(s, maxlen); 3008 #endif 3009 3010 /* Adjust the current column */ 3011 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3012 { 3013 #ifdef FEAT_EVAL 3014 if (!redir_reg && !redir_vname && redir_fd != NULL) 3015 #endif 3016 putc(*s, redir_fd); 3017 if (*s == '\r' || *s == '\n') 3018 cur_col = 0; 3019 else if (*s == '\t') 3020 cur_col += (8 - cur_col % 8); 3021 else 3022 ++cur_col; 3023 ++s; 3024 } 3025 3026 if (msg_silent != 0) /* should update msg_col */ 3027 msg_col = cur_col; 3028 } 3029 } 3030 3031 /* 3032 * Before giving verbose messsage. 3033 * Must always be called paired with verbose_leave()! 3034 */ 3035 void 3036 verbose_enter() 3037 { 3038 if (*p_vfile != NUL) 3039 ++msg_silent; 3040 } 3041 3042 /* 3043 * After giving verbose message. 3044 * Must always be called paired with verbose_enter()! 3045 */ 3046 void 3047 verbose_leave() 3048 { 3049 if (*p_vfile != NUL) 3050 if (--msg_silent < 0) 3051 msg_silent = 0; 3052 } 3053 3054 /* 3055 * Like verbose_enter() and set msg_scroll when displaying the message. 3056 */ 3057 void 3058 verbose_enter_scroll() 3059 { 3060 if (*p_vfile != NUL) 3061 ++msg_silent; 3062 else 3063 /* always scroll up, don't overwrite */ 3064 msg_scroll = TRUE; 3065 } 3066 3067 /* 3068 * Like verbose_leave() and set cmdline_row when displaying the message. 3069 */ 3070 void 3071 verbose_leave_scroll() 3072 { 3073 if (*p_vfile != NUL) 3074 { 3075 if (--msg_silent < 0) 3076 msg_silent = 0; 3077 } 3078 else 3079 cmdline_row = msg_row; 3080 } 3081 3082 static FILE *verbose_fd = NULL; 3083 static int verbose_did_open = FALSE; 3084 3085 /* 3086 * Called when 'verbosefile' is set: stop writing to the file. 3087 */ 3088 void 3089 verbose_stop() 3090 { 3091 if (verbose_fd != NULL) 3092 { 3093 fclose(verbose_fd); 3094 verbose_fd = NULL; 3095 } 3096 verbose_did_open = FALSE; 3097 } 3098 3099 /* 3100 * Open the file 'verbosefile'. 3101 * Return FAIL or OK. 3102 */ 3103 int 3104 verbose_open() 3105 { 3106 if (verbose_fd == NULL && !verbose_did_open) 3107 { 3108 /* Only give the error message once. */ 3109 verbose_did_open = TRUE; 3110 3111 verbose_fd = mch_fopen((char *)p_vfile, "a"); 3112 if (verbose_fd == NULL) 3113 { 3114 EMSG2(_(e_notopen), p_vfile); 3115 return FAIL; 3116 } 3117 } 3118 return OK; 3119 } 3120 3121 /* 3122 * Write a string to 'verbosefile'. 3123 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3124 */ 3125 static void 3126 verbose_write(str, maxlen) 3127 char_u *str; 3128 int maxlen; 3129 { 3130 char_u *s = str; 3131 static int cur_col = 0; 3132 3133 /* Open the file when called the first time. */ 3134 if (verbose_fd == NULL) 3135 verbose_open(); 3136 3137 if (verbose_fd != NULL) 3138 { 3139 /* If the string doesn't start with CR or NL, go to msg_col */ 3140 if (*s != '\n' && *s != '\r') 3141 { 3142 while (cur_col < msg_col) 3143 { 3144 fputs(" ", verbose_fd); 3145 ++cur_col; 3146 } 3147 } 3148 3149 /* Adjust the current column */ 3150 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3151 { 3152 putc(*s, verbose_fd); 3153 if (*s == '\r' || *s == '\n') 3154 cur_col = 0; 3155 else if (*s == '\t') 3156 cur_col += (8 - cur_col % 8); 3157 else 3158 ++cur_col; 3159 ++s; 3160 } 3161 } 3162 } 3163 3164 /* 3165 * Give a warning message (for searching). 3166 * Use 'w' highlighting and may repeat the message after redrawing 3167 */ 3168 void 3169 give_warning(message, hl) 3170 char_u *message; 3171 int hl; 3172 { 3173 /* Don't do this for ":silent". */ 3174 if (msg_silent != 0) 3175 return; 3176 3177 /* Don't want a hit-enter prompt here. */ 3178 ++no_wait_return; 3179 3180 #ifdef FEAT_EVAL 3181 set_vim_var_string(VV_WARNINGMSG, message, -1); 3182 #endif 3183 vim_free(keep_msg); 3184 keep_msg = NULL; 3185 if (hl) 3186 keep_msg_attr = hl_attr(HLF_W); 3187 else 3188 keep_msg_attr = 0; 3189 if (msg_attr(message, keep_msg_attr) && msg_scrolled == 0) 3190 set_keep_msg(message, keep_msg_attr); 3191 msg_didout = FALSE; /* overwrite this message */ 3192 msg_nowait = TRUE; /* don't wait for this message */ 3193 msg_col = 0; 3194 3195 --no_wait_return; 3196 } 3197 3198 /* 3199 * Advance msg cursor to column "col". 3200 */ 3201 void 3202 msg_advance(col) 3203 int col; 3204 { 3205 if (msg_silent != 0) /* nothing to advance to */ 3206 { 3207 msg_col = col; /* for redirection, may fill it up later */ 3208 return; 3209 } 3210 if (col >= Columns) /* not enough room */ 3211 col = Columns - 1; 3212 #ifdef FEAT_RIGHTLEFT 3213 if (cmdmsg_rl) 3214 while (msg_col > Columns - col) 3215 msg_putchar(' '); 3216 else 3217 #endif 3218 while (msg_col < col) 3219 msg_putchar(' '); 3220 } 3221 3222 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3223 /* 3224 * Used for "confirm()" function, and the :confirm command prefix. 3225 * Versions which haven't got flexible dialogs yet, and console 3226 * versions, get this generic handler which uses the command line. 3227 * 3228 * type = one of: 3229 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3230 * title = title string (can be NULL for default) 3231 * (neither used in console dialogs at the moment) 3232 * 3233 * Format of the "buttons" string: 3234 * "Button1Name\nButton2Name\nButton3Name" 3235 * The first button should normally be the default/accept 3236 * The second button should be the 'Cancel' button 3237 * Other buttons- use your imagination! 3238 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3239 * different letter. 3240 */ 3241 /* ARGSUSED */ 3242 int 3243 do_dialog(type, title, message, buttons, dfltbutton, textfield) 3244 int type; 3245 char_u *title; 3246 char_u *message; 3247 char_u *buttons; 3248 int dfltbutton; 3249 char_u *textfield; /* IObuff for inputdialog(), NULL otherwise */ 3250 { 3251 int oldState; 3252 int retval = 0; 3253 char_u *hotkeys; 3254 int c; 3255 int i; 3256 3257 #ifndef NO_CONSOLE 3258 /* Don't output anything in silent mode ("ex -s") */ 3259 if (silent_mode) 3260 return dfltbutton; /* return default option */ 3261 #endif 3262 3263 #ifdef FEAT_GUI_DIALOG 3264 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3265 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3266 { 3267 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3268 textfield); 3269 msg_end_prompt(); 3270 3271 /* Flush output to avoid that further messages and redrawing is done 3272 * in the wrong order. */ 3273 out_flush(); 3274 gui_mch_update(); 3275 3276 return c; 3277 } 3278 #endif 3279 3280 oldState = State; 3281 State = CONFIRM; 3282 #ifdef FEAT_MOUSE 3283 setmouse(); 3284 #endif 3285 3286 /* 3287 * Since we wait for a keypress, don't make the 3288 * user press RETURN as well afterwards. 3289 */ 3290 ++no_wait_return; 3291 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3292 3293 if (hotkeys != NULL) 3294 { 3295 for (;;) 3296 { 3297 /* Get a typed character directly from the user. */ 3298 c = get_keystroke(); 3299 switch (c) 3300 { 3301 case CAR: /* User accepts default option */ 3302 case NL: 3303 retval = dfltbutton; 3304 break; 3305 case Ctrl_C: /* User aborts/cancels */ 3306 case ESC: 3307 retval = 0; 3308 break; 3309 default: /* Could be a hotkey? */ 3310 if (c < 0) /* special keys are ignored here */ 3311 continue; 3312 /* Make the character lowercase, as chars in "hotkeys" are. */ 3313 c = MB_TOLOWER(c); 3314 retval = 1; 3315 for (i = 0; hotkeys[i]; ++i) 3316 { 3317 #ifdef FEAT_MBYTE 3318 if (has_mbyte) 3319 { 3320 if ((*mb_ptr2char)(hotkeys + i) == c) 3321 break; 3322 i += (*mb_ptr2len)(hotkeys + i) - 1; 3323 } 3324 else 3325 #endif 3326 if (hotkeys[i] == c) 3327 break; 3328 ++retval; 3329 } 3330 if (hotkeys[i]) 3331 break; 3332 /* No hotkey match, so keep waiting */ 3333 continue; 3334 } 3335 break; 3336 } 3337 3338 vim_free(hotkeys); 3339 } 3340 3341 State = oldState; 3342 #ifdef FEAT_MOUSE 3343 setmouse(); 3344 #endif 3345 --no_wait_return; 3346 msg_end_prompt(); 3347 3348 return retval; 3349 } 3350 3351 static int copy_char __ARGS((char_u *from, char_u *to, int lowercase)); 3352 3353 /* 3354 * Copy one character from "*from" to "*to", taking care of multi-byte 3355 * characters. Return the length of the character in bytes. 3356 */ 3357 static int 3358 copy_char(from, to, lowercase) 3359 char_u *from; 3360 char_u *to; 3361 int lowercase; /* make character lower case */ 3362 { 3363 #ifdef FEAT_MBYTE 3364 int len; 3365 int c; 3366 3367 if (has_mbyte) 3368 { 3369 if (lowercase) 3370 { 3371 c = MB_TOLOWER((*mb_ptr2char)(from)); 3372 return (*mb_char2bytes)(c, to); 3373 } 3374 else 3375 { 3376 len = (*mb_ptr2len)(from); 3377 mch_memmove(to, from, (size_t)len); 3378 return len; 3379 } 3380 } 3381 else 3382 #endif 3383 { 3384 if (lowercase) 3385 *to = (char_u)TOLOWER_LOC(*from); 3386 else 3387 *to = *from; 3388 return 1; 3389 } 3390 } 3391 3392 /* 3393 * Format the dialog string, and display it at the bottom of 3394 * the screen. Return a string of hotkey chars (if defined) for 3395 * each 'button'. If a button has no hotkey defined, the first character of 3396 * the button is used. 3397 * The hotkeys can be multi-byte characters, but without combining chars. 3398 * 3399 * Returns an allocated string with hotkeys, or NULL for error. 3400 */ 3401 static char_u * 3402 msg_show_console_dialog(message, buttons, dfltbutton) 3403 char_u *message; 3404 char_u *buttons; 3405 int dfltbutton; 3406 { 3407 int len = 0; 3408 #ifdef FEAT_MBYTE 3409 # define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3410 #else 3411 # define HOTK_LEN 1 3412 #endif 3413 int lenhotkey = HOTK_LEN; /* count first button */ 3414 char_u *hotk = NULL; 3415 char_u *msgp = NULL; 3416 char_u *hotkp = NULL; 3417 char_u *r; 3418 int copy; 3419 #define HAS_HOTKEY_LEN 30 3420 char_u has_hotkey[HAS_HOTKEY_LEN]; 3421 int first_hotkey = FALSE; /* first char of button is hotkey */ 3422 int idx; 3423 3424 has_hotkey[0] = FALSE; 3425 3426 /* 3427 * First loop: compute the size of memory to allocate. 3428 * Second loop: copy to the allocated memory. 3429 */ 3430 for (copy = 0; copy <= 1; ++copy) 3431 { 3432 r = buttons; 3433 idx = 0; 3434 while (*r) 3435 { 3436 if (*r == DLG_BUTTON_SEP) 3437 { 3438 if (copy) 3439 { 3440 *msgp++ = ','; 3441 *msgp++ = ' '; /* '\n' -> ', ' */ 3442 3443 /* advance to next hotkey and set default hotkey */ 3444 #ifdef FEAT_MBYTE 3445 if (has_mbyte) 3446 hotkp += (*mb_ptr2len)(hotkp); 3447 else 3448 #endif 3449 ++hotkp; 3450 (void)copy_char(r + 1, hotkp, TRUE); 3451 if (dfltbutton) 3452 --dfltbutton; 3453 3454 /* If no hotkey is specified first char is used. */ 3455 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3456 first_hotkey = TRUE; 3457 } 3458 else 3459 { 3460 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3461 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3462 if (idx < HAS_HOTKEY_LEN - 1) 3463 has_hotkey[++idx] = FALSE; 3464 } 3465 } 3466 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3467 { 3468 if (*r == DLG_HOTKEY_CHAR) 3469 ++r; 3470 first_hotkey = FALSE; 3471 if (copy) 3472 { 3473 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3474 *msgp++ = *r; 3475 else 3476 { 3477 /* '&a' -> '[a]' */ 3478 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3479 msgp += copy_char(r, msgp, FALSE); 3480 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3481 3482 /* redefine hotkey */ 3483 (void)copy_char(r, hotkp, TRUE); 3484 } 3485 } 3486 else 3487 { 3488 ++len; /* '&a' -> '[a]' */ 3489 if (idx < HAS_HOTKEY_LEN - 1) 3490 has_hotkey[idx] = TRUE; 3491 } 3492 } 3493 else 3494 { 3495 /* everything else copy literally */ 3496 if (copy) 3497 msgp += copy_char(r, msgp, FALSE); 3498 } 3499 3500 /* advance to the next character */ 3501 mb_ptr_adv(r); 3502 } 3503 3504 if (copy) 3505 { 3506 *msgp++ = ':'; 3507 *msgp++ = ' '; 3508 *msgp = NUL; 3509 mb_ptr_adv(hotkp); 3510 *hotkp = NUL; 3511 } 3512 else 3513 { 3514 len += STRLEN(message) 3515 + 2 /* for the NL's */ 3516 + STRLEN(buttons) 3517 + 3; /* for the ": " and NUL */ 3518 lenhotkey++; /* for the NUL */ 3519 3520 /* If no hotkey is specified first char is used. */ 3521 if (!has_hotkey[0]) 3522 { 3523 first_hotkey = TRUE; 3524 len += 2; /* "x" -> "[x]" */ 3525 } 3526 3527 /* 3528 * Now allocate and load the strings 3529 */ 3530 vim_free(confirm_msg); 3531 confirm_msg = alloc(len); 3532 if (confirm_msg == NULL) 3533 return NULL; 3534 *confirm_msg = NUL; 3535 hotk = alloc(lenhotkey); 3536 if (hotk == NULL) 3537 return NULL; 3538 3539 *confirm_msg = '\n'; 3540 STRCPY(confirm_msg + 1, message); 3541 3542 msgp = confirm_msg + 1 + STRLEN(message); 3543 hotkp = hotk; 3544 3545 /* define first default hotkey */ 3546 (void)copy_char(buttons, hotkp, TRUE); 3547 3548 /* Remember where the choices start, displaying starts here when 3549 * "hotkp" typed at the more prompt. */ 3550 confirm_msg_tail = msgp; 3551 *msgp++ = '\n'; 3552 } 3553 } 3554 3555 display_confirm_msg(); 3556 return hotk; 3557 } 3558 3559 /* 3560 * Display the ":confirm" message. Also called when screen resized. 3561 */ 3562 void 3563 display_confirm_msg() 3564 { 3565 /* avoid that 'q' at the more prompt truncates the message here */ 3566 ++confirm_msg_used; 3567 if (confirm_msg != NULL) 3568 msg_puts_attr(confirm_msg, hl_attr(HLF_M)); 3569 --confirm_msg_used; 3570 } 3571 3572 #endif /* FEAT_CON_DIALOG */ 3573 3574 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3575 3576 int 3577 vim_dialog_yesno(type, title, message, dflt) 3578 int type; 3579 char_u *title; 3580 char_u *message; 3581 int dflt; 3582 { 3583 if (do_dialog(type, 3584 title == NULL ? (char_u *)_("Question") : title, 3585 message, 3586 (char_u *)_("&Yes\n&No"), dflt, NULL) == 1) 3587 return VIM_YES; 3588 return VIM_NO; 3589 } 3590 3591 int 3592 vim_dialog_yesnocancel(type, title, message, dflt) 3593 int type; 3594 char_u *title; 3595 char_u *message; 3596 int dflt; 3597 { 3598 switch (do_dialog(type, 3599 title == NULL ? (char_u *)_("Question") : title, 3600 message, 3601 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL)) 3602 { 3603 case 1: return VIM_YES; 3604 case 2: return VIM_NO; 3605 } 3606 return VIM_CANCEL; 3607 } 3608 3609 int 3610 vim_dialog_yesnoallcancel(type, title, message, dflt) 3611 int type; 3612 char_u *title; 3613 char_u *message; 3614 int dflt; 3615 { 3616 switch (do_dialog(type, 3617 title == NULL ? (char_u *)"Question" : title, 3618 message, 3619 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3620 dflt, NULL)) 3621 { 3622 case 1: return VIM_YES; 3623 case 2: return VIM_NO; 3624 case 3: return VIM_ALL; 3625 case 4: return VIM_DISCARDALL; 3626 } 3627 return VIM_CANCEL; 3628 } 3629 3630 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3631 3632 #if defined(FEAT_BROWSE) || defined(PROTO) 3633 /* 3634 * Generic browse function. Calls gui_mch_browse() when possible. 3635 * Later this may pop-up a non-GUI file selector (external command?). 3636 */ 3637 char_u * 3638 do_browse(flags, title, dflt, ext, initdir, filter, buf) 3639 int flags; /* BROWSE_SAVE and BROWSE_DIR */ 3640 char_u *title; /* title for the window */ 3641 char_u *dflt; /* default file name (may include directory) */ 3642 char_u *ext; /* extension added */ 3643 char_u *initdir; /* initial directory, NULL for current dir or 3644 when using path from "dflt" */ 3645 char_u *filter; /* file name filter */ 3646 buf_T *buf; /* buffer to read/write for */ 3647 { 3648 char_u *fname; 3649 static char_u *last_dir = NULL; /* last used directory */ 3650 char_u *tofree = NULL; 3651 int save_browse = cmdmod.browse; 3652 3653 /* Must turn off browse to avoid that autocommands will get the 3654 * flag too! */ 3655 cmdmod.browse = FALSE; 3656 3657 if (title == NULL || *title == NUL) 3658 { 3659 if (flags & BROWSE_DIR) 3660 title = (char_u *)_("Select Directory dialog"); 3661 else if (flags & BROWSE_SAVE) 3662 title = (char_u *)_("Save File dialog"); 3663 else 3664 title = (char_u *)_("Open File dialog"); 3665 } 3666 3667 /* When no directory specified, use default file name, default dir, buffer 3668 * dir, last dir or current dir */ 3669 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 3670 { 3671 if (mch_isdir(dflt)) /* default file name is a directory */ 3672 { 3673 initdir = dflt; 3674 dflt = NULL; 3675 } 3676 else if (gettail(dflt) != dflt) /* default file name includes a path */ 3677 { 3678 tofree = vim_strsave(dflt); 3679 if (tofree != NULL) 3680 { 3681 initdir = tofree; 3682 *gettail(initdir) = NUL; 3683 dflt = gettail(dflt); 3684 } 3685 } 3686 } 3687 3688 if (initdir == NULL || *initdir == NUL) 3689 { 3690 /* When 'browsedir' is a directory, use it */ 3691 if (STRCMP(p_bsdir, "last") != 0 3692 && STRCMP(p_bsdir, "buffer") != 0 3693 && STRCMP(p_bsdir, "current") != 0 3694 && mch_isdir(p_bsdir)) 3695 initdir = p_bsdir; 3696 /* When saving or 'browsedir' is "buffer", use buffer fname */ 3697 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 3698 && buf != NULL && buf->b_ffname != NULL) 3699 { 3700 if (dflt == NULL || *dflt == NUL) 3701 dflt = gettail(curbuf->b_ffname); 3702 tofree = vim_strsave(curbuf->b_ffname); 3703 if (tofree != NULL) 3704 { 3705 initdir = tofree; 3706 *gettail(initdir) = NUL; 3707 } 3708 } 3709 /* When 'browsedir' is "last", use dir from last browse */ 3710 else if (*p_bsdir == 'l') 3711 initdir = last_dir; 3712 /* When 'browsedir is "current", use current directory. This is the 3713 * default already, leave initdir empty. */ 3714 } 3715 3716 # ifdef FEAT_GUI 3717 if (gui.in_use) /* when this changes, also adjust f_has()! */ 3718 { 3719 if (filter == NULL 3720 # ifdef FEAT_EVAL 3721 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 3722 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 3723 # endif 3724 ) 3725 filter = BROWSE_FILTER_DEFAULT; 3726 if (flags & BROWSE_DIR) 3727 { 3728 # if defined(HAVE_GTK2) || defined(WIN3264) 3729 /* For systems that have a directory dialog. */ 3730 fname = gui_mch_browsedir(title, initdir); 3731 # else 3732 /* Generic solution for selecting a directory: select a file and 3733 * remove the file name. */ 3734 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 3735 # endif 3736 # if !defined(HAVE_GTK2) 3737 /* Win32 adds a dummy file name, others return an arbitrary file 3738 * name. GTK+ 2 returns only the directory, */ 3739 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 3740 { 3741 /* Remove the file name. */ 3742 char_u *tail = gettail_sep(fname); 3743 3744 if (tail == fname) 3745 *tail++ = '.'; /* use current dir */ 3746 *tail = NUL; 3747 } 3748 # endif 3749 } 3750 else 3751 fname = gui_mch_browse(flags & BROWSE_SAVE, 3752 title, dflt, ext, initdir, filter); 3753 3754 /* We hang around in the dialog for a while, the user might do some 3755 * things to our files. The Win32 dialog allows deleting or renaming 3756 * a file, check timestamps. */ 3757 need_check_timestamps = TRUE; 3758 did_check_timestamps = FALSE; 3759 } 3760 else 3761 # endif 3762 { 3763 /* TODO: non-GUI file selector here */ 3764 EMSG(_("E338: Sorry, no file browser in console mode")); 3765 fname = NULL; 3766 } 3767 3768 /* keep the directory for next time */ 3769 if (fname != NULL) 3770 { 3771 vim_free(last_dir); 3772 last_dir = vim_strsave(fname); 3773 if (last_dir != NULL && !(flags & BROWSE_DIR)) 3774 { 3775 *gettail(last_dir) = NUL; 3776 if (*last_dir == NUL) 3777 { 3778 /* filename only returned, must be in current dir */ 3779 vim_free(last_dir); 3780 last_dir = alloc(MAXPATHL); 3781 if (last_dir != NULL) 3782 mch_dirname(last_dir, MAXPATHL); 3783 } 3784 } 3785 } 3786 3787 vim_free(tofree); 3788 cmdmod.browse = save_browse; 3789 3790 return fname; 3791 } 3792 #endif 3793 3794 #if defined(HAVE_STDARG_H) && defined(FEAT_EVAL) 3795 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 3796 3797 static long tv_nr __ARGS((typval_T *tvs, int *idxp)); 3798 static char *tv_str __ARGS((typval_T *tvs, int *idxp)); 3799 3800 /* 3801 * Get number argument from "idxp" entry in "tvs". First entry is 1. 3802 */ 3803 static long 3804 tv_nr(tvs, idxp) 3805 typval_T *tvs; 3806 int *idxp; 3807 { 3808 int idx = *idxp - 1; 3809 long n = 0; 3810 int err = FALSE; 3811 3812 if (tvs[idx].v_type == VAR_UNKNOWN) 3813 EMSG(_(e_printf)); 3814 else 3815 { 3816 ++*idxp; 3817 n = get_tv_number_chk(&tvs[idx], &err); 3818 if (err) 3819 n = 0; 3820 } 3821 return n; 3822 } 3823 3824 /* 3825 * Get string argument from "idxp" entry in "tvs". First entry is 1. 3826 * Returns NULL for an error. 3827 */ 3828 static char * 3829 tv_str(tvs, idxp) 3830 typval_T *tvs; 3831 int *idxp; 3832 { 3833 int idx = *idxp - 1; 3834 char *s = NULL; 3835 3836 if (tvs[idx].v_type == VAR_UNKNOWN) 3837 EMSG(_(e_printf)); 3838 else 3839 { 3840 ++*idxp; 3841 s = (char *)get_tv_string_chk(&tvs[idx]); 3842 } 3843 return s; 3844 } 3845 #endif 3846 3847 /* 3848 * This code was included to provide a portable vsnprintf() and snprintf(). 3849 * Some systems may provide their own, but we always use this one for 3850 * consistency. 3851 * 3852 * This code is based on snprintf.c - a portable implementation of snprintf 3853 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 3854 * Included with permission. It was heavely modified to fit in Vim. 3855 * The original code, including useful comments, can be found here: 3856 * http://www.ijs.si/software/snprintf/ 3857 * 3858 * This snprintf() only supports the following conversion specifiers: 3859 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 3860 * with flags: '-', '+', ' ', '0' and '#'. 3861 * An asterisk is supported for field width as well as precision. 3862 * 3863 * Length modifiers 'h' (short int) and 'l' (long int) are supported. 3864 * 'll' (long long int) is not supported. 3865 * 3866 * The locale is not used, the string is used as a byte string. This is only 3867 * relevant for double-byte encodings where the second byte may be '%'. 3868 * 3869 * It is permitted for "str_m" to be zero, and it is permitted to specify NULL 3870 * pointer for resulting string argument if "str_m" is zero (as per ISO C99). 3871 * 3872 * The return value is the number of characters which would be generated 3873 * for the given input, excluding the trailing null. If this value 3874 * is greater or equal to "str_m", not all characters from the result 3875 * have been stored in str, output bytes beyond the ("str_m"-1) -th character 3876 * are discarded. If "str_m" is greater than zero it is guaranteed 3877 * the resulting string will be null-terminated. 3878 */ 3879 3880 /* 3881 * When va_list is not supported we only define vim_snprintf(). 3882 * 3883 * vim_vsnprintf() can be invoked with either "va_list" or a list of 3884 * "typval_T". When the latter is not used it must be NULL. 3885 */ 3886 3887 /* When generating prototypes all of this is skipped, cproto doesn't 3888 * understand this. */ 3889 #ifndef PROTO 3890 # ifdef HAVE_STDARG_H 3891 int 3892 vim_snprintf(char *str, size_t str_m, char *fmt, ...) 3893 { 3894 va_list ap; 3895 int str_l; 3896 3897 va_start(ap, fmt); 3898 str_l = vim_vsnprintf(str, str_m, fmt, ap, NULL); 3899 va_end(ap); 3900 return str_l; 3901 } 3902 3903 int 3904 vim_vsnprintf(str, str_m, fmt, ap, tvs) 3905 # else 3906 /* clumsy way to work around missing va_list */ 3907 # define get_a_arg(i) (++i, i == 2 ? a1 : i == 3 ? a2 : i == 4 ? a3 : i == 5 ? a4 : i == 6 ? a5 : i == 7 ? a6 : i == 8 ? a7 : i == 9 ? a8 : i == 10 ? a9 : a10) 3908 3909 /* VARARGS */ 3910 int 3911 #ifdef __BORLANDC__ 3912 _RTLENTRYF 3913 #endif 3914 vim_snprintf(str, str_m, fmt, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 3915 # endif 3916 char *str; 3917 size_t str_m; 3918 char *fmt; 3919 # ifdef HAVE_STDARG_H 3920 va_list ap; 3921 typval_T *tvs; 3922 # else 3923 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 3924 # endif 3925 { 3926 size_t str_l = 0; 3927 char *p = fmt; 3928 int arg_idx = 1; 3929 3930 if (p == NULL) 3931 p = ""; 3932 while (*p != NUL) 3933 { 3934 if (*p != '%') 3935 { 3936 char *q = strchr(p + 1, '%'); 3937 size_t n = (q == NULL) ? STRLEN(p) : (q - p); 3938 3939 /* Copy up to the next '%' or NUL without any changes. */ 3940 if (str_l < str_m) 3941 { 3942 size_t avail = str_m - str_l; 3943 3944 mch_memmove(str + str_l, p, n > avail ? avail : n); 3945 } 3946 p += n; 3947 str_l += n; 3948 } 3949 else 3950 { 3951 size_t min_field_width = 0, precision = 0; 3952 int zero_padding = 0, precision_specified = 0, justify_left = 0; 3953 int alternate_form = 0, force_sign = 0; 3954 3955 /* If both the ' ' and '+' flags appear, the ' ' flag should be 3956 * ignored. */ 3957 int space_for_positive = 1; 3958 3959 /* allowed values: \0, h, l, L */ 3960 char length_modifier = '\0'; 3961 3962 /* temporary buffer for simple numeric->string conversion */ 3963 char tmp[32]; 3964 3965 /* string address in case of string argument */ 3966 char *str_arg; 3967 3968 /* natural field width of arg without padding and sign */ 3969 size_t str_arg_l; 3970 3971 /* unsigned char argument value - only defined for c conversion. 3972 * N.B. standard explicitly states the char argument for the c 3973 * conversion is unsigned */ 3974 unsigned char uchar_arg; 3975 3976 /* number of zeros to be inserted for numeric conversions as 3977 * required by the precision or minimal field width */ 3978 size_t number_of_zeros_to_pad = 0; 3979 3980 /* index into tmp where zero padding is to be inserted */ 3981 size_t zero_padding_insertion_ind = 0; 3982 3983 /* current conversion specifier character */ 3984 char fmt_spec = '\0'; 3985 3986 str_arg = NULL; 3987 p++; /* skip '%' */ 3988 3989 /* parse flags */ 3990 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 3991 || *p == '#' || *p == '\'') 3992 { 3993 switch (*p) 3994 { 3995 case '0': zero_padding = 1; break; 3996 case '-': justify_left = 1; break; 3997 case '+': force_sign = 1; space_for_positive = 0; break; 3998 case ' ': force_sign = 1; 3999 /* If both the ' ' and '+' flags appear, the ' ' 4000 * flag should be ignored */ 4001 break; 4002 case '#': alternate_form = 1; break; 4003 case '\'': break; 4004 } 4005 p++; 4006 } 4007 /* If the '0' and '-' flags both appear, the '0' flag should be 4008 * ignored. */ 4009 4010 /* parse field width */ 4011 if (*p == '*') 4012 { 4013 int j; 4014 4015 p++; 4016 j = 4017 #ifndef HAVE_STDARG_H 4018 get_a_arg(arg_idx); 4019 #else 4020 # if defined(FEAT_EVAL) 4021 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4022 # endif 4023 va_arg(ap, int); 4024 #endif 4025 if (j >= 0) 4026 min_field_width = j; 4027 else 4028 { 4029 min_field_width = -j; 4030 justify_left = 1; 4031 } 4032 } 4033 else if (VIM_ISDIGIT((int)(*p))) 4034 { 4035 /* size_t could be wider than unsigned int; make sure we treat 4036 * argument like common implementations do */ 4037 unsigned int uj = *p++ - '0'; 4038 4039 while (VIM_ISDIGIT((int)(*p))) 4040 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4041 min_field_width = uj; 4042 } 4043 4044 /* parse precision */ 4045 if (*p == '.') 4046 { 4047 p++; 4048 precision_specified = 1; 4049 if (*p == '*') 4050 { 4051 int j; 4052 4053 j = 4054 #ifndef HAVE_STDARG_H 4055 get_a_arg(arg_idx); 4056 #else 4057 # if defined(FEAT_EVAL) 4058 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4059 # endif 4060 va_arg(ap, int); 4061 #endif 4062 p++; 4063 if (j >= 0) 4064 precision = j; 4065 else 4066 { 4067 precision_specified = 0; 4068 precision = 0; 4069 } 4070 } 4071 else if (VIM_ISDIGIT((int)(*p))) 4072 { 4073 /* size_t could be wider than unsigned int; make sure we 4074 * treat argument like common implementations do */ 4075 unsigned int uj = *p++ - '0'; 4076 4077 while (VIM_ISDIGIT((int)(*p))) 4078 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4079 precision = uj; 4080 } 4081 } 4082 4083 /* parse 'h', 'l' and 'll' length modifiers */ 4084 if (*p == 'h' || *p == 'l') 4085 { 4086 length_modifier = *p; 4087 p++; 4088 if (length_modifier == 'l' && *p == 'l') 4089 { 4090 /* double l = long long */ 4091 length_modifier = 'l'; /* treat it as a single 'l' */ 4092 p++; 4093 } 4094 } 4095 fmt_spec = *p; 4096 4097 /* common synonyms: */ 4098 switch (fmt_spec) 4099 { 4100 case 'i': fmt_spec = 'd'; break; 4101 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4102 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4103 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4104 default: break; 4105 } 4106 4107 /* get parameter value, do initial processing */ 4108 switch (fmt_spec) 4109 { 4110 /* '%' and 'c' behave similar to 's' regarding flags and field 4111 * widths */ 4112 case '%': 4113 case 'c': 4114 case 's': 4115 length_modifier = '\0'; 4116 zero_padding = 0; /* turn zero padding off for string 4117 conversions */ 4118 str_arg_l = 1; 4119 switch (fmt_spec) 4120 { 4121 case '%': 4122 str_arg = p; 4123 break; 4124 4125 case 'c': 4126 { 4127 int j; 4128 4129 j = 4130 #ifndef HAVE_STDARG_H 4131 get_a_arg(arg_idx); 4132 #else 4133 # if defined(FEAT_EVAL) 4134 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4135 # endif 4136 va_arg(ap, int); 4137 #endif 4138 /* standard demands unsigned char */ 4139 uchar_arg = (unsigned char)j; 4140 str_arg = (char *)&uchar_arg; 4141 break; 4142 } 4143 4144 case 's': 4145 str_arg = 4146 #ifndef HAVE_STDARG_H 4147 (char *)get_a_arg(arg_idx); 4148 #else 4149 # if defined(FEAT_EVAL) 4150 tvs != NULL ? tv_str(tvs, &arg_idx) : 4151 # endif 4152 va_arg(ap, char *); 4153 #endif 4154 if (str_arg == NULL) 4155 { 4156 str_arg = "[NULL]"; 4157 str_arg_l = 6; 4158 } 4159 /* make sure not to address string beyond the specified 4160 * precision !!! */ 4161 else if (!precision_specified) 4162 str_arg_l = strlen(str_arg); 4163 /* truncate string if necessary as requested by precision */ 4164 else if (precision == 0) 4165 str_arg_l = 0; 4166 else 4167 { 4168 /* memchr on HP does not like n > 2^31 !!! */ 4169 char *q = memchr(str_arg, '\0', 4170 precision <= (size_t)0x7fffffffL ? precision 4171 : (size_t)0x7fffffffL); 4172 str_arg_l = (q == NULL) ? precision : q - str_arg; 4173 } 4174 break; 4175 4176 default: 4177 break; 4178 } 4179 break; 4180 4181 case 'd': case 'u': case 'o': case 'x': case 'X': case 'p': 4182 { 4183 /* NOTE: the u, o, x, X and p conversion specifiers 4184 * imply the value is unsigned; d implies a signed 4185 * value */ 4186 4187 /* 0 if numeric argument is zero (or if pointer is 4188 * NULL for 'p'), +1 if greater than zero (or nonzero 4189 * for unsigned arguments), -1 if negative (unsigned 4190 * argument is never negative) */ 4191 int arg_sign = 0; 4192 4193 /* only defined for length modifier h, or for no 4194 * length modifiers */ 4195 int int_arg = 0; 4196 unsigned int uint_arg = 0; 4197 4198 /* only defined for length modifier l */ 4199 long int long_arg = 0; 4200 unsigned long int ulong_arg = 0; 4201 4202 /* pointer argument value -only defined for p 4203 * conversion */ 4204 void *ptr_arg = NULL; 4205 4206 if (fmt_spec == 'p') 4207 { 4208 length_modifier = '\0'; 4209 ptr_arg = 4210 #ifndef HAVE_STDARG_H 4211 (void *)get_a_arg(arg_idx); 4212 #else 4213 # if defined(FEAT_EVAL) 4214 tvs != NULL ? (void *)tv_str(tvs, &arg_idx) : 4215 # endif 4216 va_arg(ap, void *); 4217 #endif 4218 if (ptr_arg != NULL) 4219 arg_sign = 1; 4220 } 4221 else if (fmt_spec == 'd') 4222 { 4223 /* signed */ 4224 switch (length_modifier) 4225 { 4226 case '\0': 4227 case 'h': 4228 /* char and short arguments are passed as int. */ 4229 int_arg = 4230 #ifndef HAVE_STDARG_H 4231 get_a_arg(arg_idx); 4232 #else 4233 # if defined(FEAT_EVAL) 4234 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4235 # endif 4236 va_arg(ap, int); 4237 #endif 4238 if (int_arg > 0) 4239 arg_sign = 1; 4240 else if (int_arg < 0) 4241 arg_sign = -1; 4242 break; 4243 case 'l': 4244 long_arg = 4245 #ifndef HAVE_STDARG_H 4246 get_a_arg(arg_idx); 4247 #else 4248 # if defined(FEAT_EVAL) 4249 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4250 # endif 4251 va_arg(ap, long int); 4252 #endif 4253 if (long_arg > 0) 4254 arg_sign = 1; 4255 else if (long_arg < 0) 4256 arg_sign = -1; 4257 break; 4258 } 4259 } 4260 else 4261 { 4262 /* unsigned */ 4263 switch (length_modifier) 4264 { 4265 case '\0': 4266 case 'h': 4267 uint_arg = 4268 #ifndef HAVE_STDARG_H 4269 get_a_arg(arg_idx); 4270 #else 4271 # if defined(FEAT_EVAL) 4272 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4273 # endif 4274 va_arg(ap, unsigned int); 4275 #endif 4276 if (uint_arg != 0) 4277 arg_sign = 1; 4278 break; 4279 case 'l': 4280 ulong_arg = 4281 #ifndef HAVE_STDARG_H 4282 get_a_arg(arg_idx); 4283 #else 4284 # if defined(FEAT_EVAL) 4285 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4286 # endif 4287 va_arg(ap, unsigned long int); 4288 #endif 4289 if (ulong_arg != 0) 4290 arg_sign = 1; 4291 break; 4292 } 4293 } 4294 4295 str_arg = tmp; 4296 str_arg_l = 0; 4297 4298 /* NOTE: 4299 * For d, i, u, o, x, and X conversions, if precision is 4300 * specified, the '0' flag should be ignored. This is so 4301 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4302 * FreeBSD, NetBSD; but not with Perl. 4303 */ 4304 if (precision_specified) 4305 zero_padding = 0; 4306 if (fmt_spec == 'd') 4307 { 4308 if (force_sign && arg_sign >= 0) 4309 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4310 /* leave negative numbers for sprintf to handle, to 4311 * avoid handling tricky cases like (short int)-32768 */ 4312 } 4313 else if (alternate_form) 4314 { 4315 if (arg_sign != 0 4316 && (fmt_spec == 'x' || fmt_spec == 'X') ) 4317 { 4318 tmp[str_arg_l++] = '0'; 4319 tmp[str_arg_l++] = fmt_spec; 4320 } 4321 /* alternate form should have no effect for p 4322 * conversion, but ... */ 4323 } 4324 4325 zero_padding_insertion_ind = str_arg_l; 4326 if (!precision_specified) 4327 precision = 1; /* default precision is 1 */ 4328 if (precision == 0 && arg_sign == 0) 4329 { 4330 /* When zero value is formatted with an explicit 4331 * precision 0, the resulting formatted string is 4332 * empty (d, i, u, o, x, X, p). */ 4333 } 4334 else 4335 { 4336 char f[5]; 4337 int f_l = 0; 4338 4339 /* construct a simple format string for sprintf */ 4340 f[f_l++] = '%'; 4341 if (!length_modifier) 4342 ; 4343 else if (length_modifier == '2') 4344 { 4345 f[f_l++] = 'l'; 4346 f[f_l++] = 'l'; 4347 } 4348 else 4349 f[f_l++] = length_modifier; 4350 f[f_l++] = fmt_spec; 4351 f[f_l++] = '\0'; 4352 4353 if (fmt_spec == 'p') 4354 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4355 else if (fmt_spec == 'd') 4356 { 4357 /* signed */ 4358 switch (length_modifier) 4359 { 4360 case '\0': 4361 case 'h': str_arg_l += sprintf( 4362 tmp + str_arg_l, f, int_arg); 4363 break; 4364 case 'l': str_arg_l += sprintf( 4365 tmp + str_arg_l, f, long_arg); 4366 break; 4367 } 4368 } 4369 else 4370 { 4371 /* unsigned */ 4372 switch (length_modifier) 4373 { 4374 case '\0': 4375 case 'h': str_arg_l += sprintf( 4376 tmp + str_arg_l, f, uint_arg); 4377 break; 4378 case 'l': str_arg_l += sprintf( 4379 tmp + str_arg_l, f, ulong_arg); 4380 break; 4381 } 4382 } 4383 4384 /* include the optional minus sign and possible 4385 * "0x" in the region before the zero padding 4386 * insertion point */ 4387 if (zero_padding_insertion_ind < str_arg_l 4388 && tmp[zero_padding_insertion_ind] == '-') 4389 zero_padding_insertion_ind++; 4390 if (zero_padding_insertion_ind + 1 < str_arg_l 4391 && tmp[zero_padding_insertion_ind] == '0' 4392 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4393 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4394 zero_padding_insertion_ind += 2; 4395 } 4396 4397 { 4398 size_t num_of_digits = str_arg_l 4399 - zero_padding_insertion_ind; 4400 4401 if (alternate_form && fmt_spec == 'o' 4402 /* unless zero is already the first 4403 * character */ 4404 && !(zero_padding_insertion_ind < str_arg_l 4405 && tmp[zero_padding_insertion_ind] == '0')) 4406 { 4407 /* assure leading zero for alternate-form 4408 * octal numbers */ 4409 if (!precision_specified 4410 || precision < num_of_digits + 1) 4411 { 4412 /* precision is increased to force the 4413 * first character to be zero, except if a 4414 * zero value is formatted with an 4415 * explicit precision of zero */ 4416 precision = num_of_digits + 1; 4417 precision_specified = 1; 4418 } 4419 } 4420 /* zero padding to specified precision? */ 4421 if (num_of_digits < precision) 4422 number_of_zeros_to_pad = precision - num_of_digits; 4423 } 4424 /* zero padding to specified minimal field width? */ 4425 if (!justify_left && zero_padding) 4426 { 4427 int n = min_field_width - (str_arg_l 4428 + number_of_zeros_to_pad); 4429 if (n > 0) 4430 number_of_zeros_to_pad += n; 4431 } 4432 break; 4433 } 4434 4435 default: 4436 /* unrecognized conversion specifier, keep format string 4437 * as-is */ 4438 zero_padding = 0; /* turn zero padding off for non-numeric 4439 convers. */ 4440 justify_left = 1; 4441 min_field_width = 0; /* reset flags */ 4442 4443 /* discard the unrecognized conversion, just keep * 4444 * the unrecognized conversion character */ 4445 str_arg = p; 4446 str_arg_l = 0; 4447 if (*p != NUL) 4448 str_arg_l++; /* include invalid conversion specifier 4449 unchanged if not at end-of-string */ 4450 break; 4451 } 4452 4453 if (*p != NUL) 4454 p++; /* step over the just processed conversion specifier */ 4455 4456 /* insert padding to the left as requested by min_field_width; 4457 * this does not include the zero padding in case of numerical 4458 * conversions*/ 4459 if (!justify_left) 4460 { 4461 /* left padding with blank or zero */ 4462 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4463 4464 if (pn > 0) 4465 { 4466 if (str_l < str_m) 4467 { 4468 size_t avail = str_m - str_l; 4469 4470 vim_memset(str + str_l, zero_padding ? '0' : ' ', 4471 (size_t)pn > avail ? avail : pn); 4472 } 4473 str_l += pn; 4474 } 4475 } 4476 4477 /* zero padding as requested by the precision or by the minimal 4478 * field width for numeric conversions required? */ 4479 if (number_of_zeros_to_pad == 0) 4480 { 4481 /* will not copy first part of numeric right now, * 4482 * force it to be copied later in its entirety */ 4483 zero_padding_insertion_ind = 0; 4484 } 4485 else 4486 { 4487 /* insert first part of numerics (sign or '0x') before zero 4488 * padding */ 4489 int zn = zero_padding_insertion_ind; 4490 4491 if (zn > 0) 4492 { 4493 if (str_l < str_m) 4494 { 4495 size_t avail = str_m - str_l; 4496 4497 mch_memmove(str + str_l, str_arg, 4498 (size_t)zn > avail ? avail : zn); 4499 } 4500 str_l += zn; 4501 } 4502 4503 /* insert zero padding as requested by the precision or min 4504 * field width */ 4505 zn = number_of_zeros_to_pad; 4506 if (zn > 0) 4507 { 4508 if (str_l < str_m) 4509 { 4510 size_t avail = str_m-str_l; 4511 4512 vim_memset(str + str_l, '0', 4513 (size_t)zn > avail ? avail : zn); 4514 } 4515 str_l += zn; 4516 } 4517 } 4518 4519 /* insert formatted string 4520 * (or as-is conversion specifier for unknown conversions) */ 4521 { 4522 int sn = str_arg_l - zero_padding_insertion_ind; 4523 4524 if (sn > 0) 4525 { 4526 if (str_l < str_m) 4527 { 4528 size_t avail = str_m - str_l; 4529 4530 mch_memmove(str + str_l, 4531 str_arg + zero_padding_insertion_ind, 4532 (size_t)sn > avail ? avail : sn); 4533 } 4534 str_l += sn; 4535 } 4536 } 4537 4538 /* insert right padding */ 4539 if (justify_left) 4540 { 4541 /* right blank padding to the field width */ 4542 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4543 4544 if (pn > 0) 4545 { 4546 if (str_l < str_m) 4547 { 4548 size_t avail = str_m - str_l; 4549 4550 vim_memset(str + str_l, ' ', 4551 (size_t)pn > avail ? avail : pn); 4552 } 4553 str_l += pn; 4554 } 4555 } 4556 } 4557 } 4558 4559 if (str_m > 0) 4560 { 4561 /* make sure the string is nul-terminated even at the expense of 4562 * overwriting the last character (shouldn't happen, but just in case) 4563 * */ 4564 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 4565 } 4566 4567 #ifdef HAVE_STDARG_H 4568 if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 4569 EMSG(_("E767: Too many arguments to printf()")); 4570 #endif 4571 4572 /* Return the number of characters formatted (excluding trailing nul 4573 * character), that is, the number of characters that would have been 4574 * written to the buffer if it were large enough. */ 4575 return (int)str_l; 4576 } 4577 4578 #endif /* PROTO */ 4579