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 57 /* 58 * When writing messages to the screen, there are many different situations. 59 * A number of variables is used to remember the current state: 60 * msg_didany TRUE when messages were written since the last time the 61 * user reacted to a prompt. 62 * Reset: After hitting a key for the hit-return prompt, 63 * hitting <CR> for the command line or input(). 64 * Set: When any message is written to the screen. 65 * msg_didout TRUE when something was written to the current line. 66 * Reset: When advancing to the next line, when the current 67 * text can be overwritten. 68 * Set: When any message is written to the screen. 69 * msg_nowait No extra delay for the last drawn message. 70 * Used in normal_cmd() before the mode message is drawn. 71 * emsg_on_display There was an error message recently. Indicates that there 72 * should be a delay before redrawing. 73 * msg_scroll The next message should not overwrite the current one. 74 * msg_scrolled How many lines the screen has been scrolled (because of 75 * messages). Used in update_screen() to scroll the screen 76 * back. Incremented each time the screen scrolls a line. 77 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 78 * writes something without scrolling should not make 79 * need_wait_return to be set. This is a hack to make ":ts" 80 * work without an extra prompt. 81 * lines_left Number of lines available for messages before the 82 * more-prompt is to be given. 83 * need_wait_return TRUE when the hit-return prompt is needed. 84 * Reset: After giving the hit-return prompt, when the user 85 * has answered some other prompt. 86 * Set: When the ruler or typeahead display is overwritten, 87 * scrolling the screen for some message. 88 * keep_msg Message to be displayed after redrawing the screen, in 89 * main_loop(). 90 * This is an allocated string or NULL when not used. 91 */ 92 93 /* 94 * msg(s) - displays the string 's' on the status line 95 * When terminal not initialized (yet) mch_errmsg(..) is used. 96 * return TRUE if wait_return not called 97 */ 98 int 99 msg(s) 100 char_u *s; 101 { 102 return msg_attr_keep(s, 0, FALSE); 103 } 104 105 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 106 || defined(PROTO) 107 /* 108 * Like msg() but keep it silent when 'verbosefile' is set. 109 */ 110 int 111 verb_msg(s) 112 char_u *s; 113 { 114 int n; 115 116 verbose_enter(); 117 n = msg_attr_keep(s, 0, FALSE); 118 verbose_leave(); 119 120 return n; 121 } 122 #endif 123 124 int 125 msg_attr(s, attr) 126 char_u *s; 127 int attr; 128 { 129 return msg_attr_keep(s, attr, FALSE); 130 } 131 132 int 133 msg_attr_keep(s, attr, keep) 134 char_u *s; 135 int attr; 136 int keep; /* TRUE: set keep_msg if it doesn't scroll */ 137 { 138 static int entered = 0; 139 int retval; 140 char_u *buf = NULL; 141 142 #ifdef FEAT_EVAL 143 if (attr == 0) 144 set_vim_var_string(VV_STATUSMSG, s, -1); 145 #endif 146 147 /* 148 * It is possible that displaying a messages causes a problem (e.g., 149 * when redrawing the window), which causes another message, etc.. To 150 * break this loop, limit the recursiveness to 3 levels. 151 */ 152 if (entered >= 3) 153 return TRUE; 154 ++entered; 155 156 /* Add message to history (unless it's a repeated kept message or a 157 * truncated message) */ 158 if (s != keep_msg 159 || (*s != '<' 160 && last_msg_hist != NULL 161 && last_msg_hist->msg != NULL 162 && STRCMP(s, last_msg_hist->msg))) 163 add_msg_hist(s, -1, attr); 164 165 /* When displaying keep_msg, don't let msg_start() free it, caller must do 166 * that. */ 167 if (s == keep_msg) 168 keep_msg = NULL; 169 170 /* Truncate the message if needed. */ 171 msg_start(); 172 buf = msg_strtrunc(s, FALSE); 173 if (buf != NULL) 174 s = buf; 175 176 msg_outtrans_attr(s, attr); 177 msg_clr_eos(); 178 retval = msg_end(); 179 180 if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1) 181 * Columns + sc_col) 182 set_keep_msg(s, 0); 183 184 vim_free(buf); 185 --entered; 186 return retval; 187 } 188 189 /* 190 * Truncate a string such that it can be printed without causing a scroll. 191 * Returns an allocated string or NULL when no truncating is done. 192 */ 193 char_u * 194 msg_strtrunc(s, force) 195 char_u *s; 196 int force; /* always truncate */ 197 { 198 char_u *buf = NULL; 199 int len; 200 int room; 201 202 /* May truncate message to avoid a hit-return prompt */ 203 if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 204 && !exmode_active && msg_silent == 0) || force) 205 { 206 len = vim_strsize(s); 207 if (msg_scrolled != 0) 208 /* Use all the columns. */ 209 room = (int)(Rows - msg_row) * Columns - 1; 210 else 211 /* Use up to 'showcmd' column. */ 212 room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1; 213 if (len > room && room > 0) 214 { 215 #ifdef FEAT_MBYTE 216 if (enc_utf8) 217 /* may have up to 18 bytes per cell (6 per char, up to two 218 * composing chars) */ 219 buf = alloc((room + 2) * 18); 220 else if (enc_dbcs == DBCS_JPNU) 221 /* may have up to 2 bytes per cell for euc-jp */ 222 buf = alloc((room + 2) * 2); 223 else 224 #endif 225 buf = alloc(room + 2); 226 if (buf != NULL) 227 trunc_string(s, buf, room); 228 } 229 } 230 return buf; 231 } 232 233 /* 234 * Truncate a string "s" to "buf" with cell width "room". 235 * "s" and "buf" may be equal. 236 */ 237 void 238 trunc_string(s, buf, room) 239 char_u *s; 240 char_u *buf; 241 int room; 242 { 243 int half; 244 int len; 245 int e; 246 int i; 247 int n; 248 249 room -= 3; 250 half = room / 2; 251 len = 0; 252 253 /* First part: Start of the string. */ 254 for (e = 0; len < half; ++e) 255 { 256 if (s[e] == NUL) 257 { 258 /* text fits without truncating! */ 259 buf[e] = NUL; 260 return; 261 } 262 n = ptr2cells(s + e); 263 if (len + n >= half) 264 break; 265 len += n; 266 buf[e] = s[e]; 267 #ifdef FEAT_MBYTE 268 if (has_mbyte) 269 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 270 { 271 ++e; 272 buf[e] = s[e]; 273 } 274 #endif 275 } 276 277 /* Last part: End of the string. */ 278 i = e; 279 #ifdef FEAT_MBYTE 280 if (enc_dbcs != 0) 281 { 282 /* For DBCS going backwards in a string is slow, but 283 * computing the cell width isn't too slow: go forward 284 * until the rest fits. */ 285 n = vim_strsize(s + i); 286 while (len + n > room) 287 { 288 n -= ptr2cells(s + i); 289 i += (*mb_ptr2len)(s + i); 290 } 291 } 292 else if (enc_utf8) 293 { 294 /* For UTF-8 we can go backwards easily. */ 295 half = i = (int)STRLEN(s); 296 for (;;) 297 { 298 do 299 half = half - (*mb_head_off)(s, s + half - 1) - 1; 300 while (utf_iscomposing(utf_ptr2char(s + half)) && half > 0); 301 n = ptr2cells(s + half); 302 if (len + n > room) 303 break; 304 len += n; 305 i = half; 306 } 307 } 308 else 309 #endif 310 { 311 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 312 len += n; 313 } 314 315 /* Set the middle and copy the last part. */ 316 mch_memmove(buf + e, "...", (size_t)3); 317 mch_memmove(buf + e + 3, s + i, STRLEN(s + i) + 1); 318 } 319 320 /* 321 * Automatic prototype generation does not understand this function. 322 * Note: Caller of smgs() and smsg_attr() must check the resulting string is 323 * shorter than IOSIZE!!! 324 */ 325 #ifndef PROTO 326 # ifndef HAVE_STDARG_H 327 328 int 329 #ifdef __BORLANDC__ 330 _RTLENTRYF 331 #endif 332 smsg __ARGS((char_u *, long, long, long, 333 long, long, long, long, long, long, long)); 334 int 335 #ifdef __BORLANDC__ 336 _RTLENTRYF 337 #endif 338 smsg_attr __ARGS((int, char_u *, long, long, long, 339 long, long, long, long, long, long, long)); 340 341 int vim_snprintf __ARGS((char *, size_t, char *, long, long, long, 342 long, long, long, long, long, long, long)); 343 344 /* 345 * smsg(str, arg, ...) is like using sprintf(buf, str, arg, ...) and then 346 * calling msg(buf). 347 * The buffer used is IObuff, the message is truncated at IOSIZE. 348 */ 349 350 /* VARARGS */ 351 int 352 #ifdef __BORLANDC__ 353 _RTLENTRYF 354 #endif 355 smsg(s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 356 char_u *s; 357 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 358 { 359 return smsg_attr(0, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 360 } 361 362 /* VARARGS */ 363 int 364 #ifdef __BORLANDC__ 365 _RTLENTRYF 366 #endif 367 smsg_attr(attr, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 368 int attr; 369 char_u *s; 370 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 371 { 372 vim_snprintf((char *)IObuff, IOSIZE, (char *)s, 373 a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 374 return msg_attr(IObuff, attr); 375 } 376 377 # else /* HAVE_STDARG_H */ 378 379 int vim_snprintf(char *str, size_t str_m, char *fmt, ...); 380 381 int 382 #ifdef __BORLANDC__ 383 _RTLENTRYF 384 #endif 385 smsg(char_u *s, ...) 386 { 387 va_list arglist; 388 389 va_start(arglist, s); 390 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 391 va_end(arglist); 392 return msg(IObuff); 393 } 394 395 int 396 #ifdef __BORLANDC__ 397 _RTLENTRYF 398 #endif 399 smsg_attr(int attr, char_u *s, ...) 400 { 401 va_list arglist; 402 403 va_start(arglist, s); 404 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 405 va_end(arglist); 406 return msg_attr(IObuff, attr); 407 } 408 409 # endif /* HAVE_STDARG_H */ 410 #endif 411 412 /* 413 * Remember the last sourcing name/lnum used in an error message, so that it 414 * isn't printed each time when it didn't change. 415 */ 416 static int last_sourcing_lnum = 0; 417 static char_u *last_sourcing_name = NULL; 418 419 /* 420 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 421 * for the next error message; 422 */ 423 void 424 reset_last_sourcing() 425 { 426 vim_free(last_sourcing_name); 427 last_sourcing_name = NULL; 428 last_sourcing_lnum = 0; 429 } 430 431 /* 432 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 433 */ 434 static int 435 other_sourcing_name() 436 { 437 if (sourcing_name != NULL) 438 { 439 if (last_sourcing_name != NULL) 440 return STRCMP(sourcing_name, last_sourcing_name) != 0; 441 return TRUE; 442 } 443 return FALSE; 444 } 445 446 /* 447 * Get the message about the source, as used for an error message. 448 * Returns an allocated string with room for one more character. 449 * Returns NULL when no message is to be given. 450 */ 451 static char_u * 452 get_emsg_source() 453 { 454 char_u *Buf, *p; 455 456 if (sourcing_name != NULL && other_sourcing_name()) 457 { 458 p = (char_u *)_("Error detected while processing %s:"); 459 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 460 if (Buf != NULL) 461 sprintf((char *)Buf, (char *)p, sourcing_name); 462 return Buf; 463 } 464 return NULL; 465 } 466 467 /* 468 * Get the message about the source lnum, as used for an error message. 469 * Returns an allocated string with room for one more character. 470 * Returns NULL when no message is to be given. 471 */ 472 static char_u * 473 get_emsg_lnum() 474 { 475 char_u *Buf, *p; 476 477 /* lnum is 0 when executing a command from the command line 478 * argument, we don't want a line number then */ 479 if (sourcing_name != NULL 480 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 481 && sourcing_lnum != 0) 482 { 483 p = (char_u *)_("line %4ld:"); 484 Buf = alloc((unsigned)(STRLEN(p) + 20)); 485 if (Buf != NULL) 486 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 487 return Buf; 488 } 489 return NULL; 490 } 491 492 /* 493 * Display name and line number for the source of an error. 494 * Remember the file name and line number, so that for the next error the info 495 * is only displayed if it changed. 496 */ 497 void 498 msg_source(attr) 499 int attr; 500 { 501 char_u *p; 502 503 ++no_wait_return; 504 p = get_emsg_source(); 505 if (p != NULL) 506 { 507 msg_attr(p, attr); 508 vim_free(p); 509 } 510 p = get_emsg_lnum(); 511 if (p != NULL) 512 { 513 msg_attr(p, hl_attr(HLF_N)); 514 vim_free(p); 515 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 516 } 517 518 /* remember the last sourcing name printed, also when it's empty */ 519 if (sourcing_name == NULL || other_sourcing_name()) 520 { 521 vim_free(last_sourcing_name); 522 if (sourcing_name == NULL) 523 last_sourcing_name = NULL; 524 else 525 last_sourcing_name = vim_strsave(sourcing_name); 526 } 527 --no_wait_return; 528 } 529 530 /* 531 * Return TRUE if not giving error messages right now: 532 * If "emsg_off" is set: no error messages at the moment. 533 * If "msg" is in 'debug': do error message but without side effects. 534 * If "emsg_skip" is set: never do error messages. 535 */ 536 int 537 emsg_not_now() 538 { 539 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL 540 && vim_strchr(p_debug, 't') == NULL) 541 #ifdef FEAT_EVAL 542 || emsg_skip > 0 543 #endif 544 ) 545 return TRUE; 546 return FALSE; 547 } 548 549 /* 550 * emsg() - display an error message 551 * 552 * Rings the bell, if appropriate, and calls message() to do the real work 553 * When terminal not initialized (yet) mch_errmsg(..) is used. 554 * 555 * return TRUE if wait_return not called 556 */ 557 int 558 emsg(s) 559 char_u *s; 560 { 561 int attr; 562 char_u *p; 563 #ifdef FEAT_EVAL 564 int ignore = FALSE; 565 int severe; 566 #endif 567 568 called_emsg = TRUE; 569 ex_exitval = 1; 570 571 /* 572 * If "emsg_severe" is TRUE: When an error exception is to be thrown, 573 * prefer this message over previous messages for the same command. 574 */ 575 #ifdef FEAT_EVAL 576 severe = emsg_severe; 577 emsg_severe = FALSE; 578 #endif 579 580 /* Skip this if not giving error messages at the moment. */ 581 if (emsg_not_now()) 582 return TRUE; 583 584 if (!emsg_off || vim_strchr(p_debug, 't') != NULL) 585 { 586 #ifdef FEAT_EVAL 587 /* 588 * Cause a throw of an error exception if appropriate. Don't display 589 * the error message in this case. (If no matching catch clause will 590 * be found, the message will be displayed later on.) "ignore" is set 591 * when the message should be ignored completely (used for the 592 * interrupt message). 593 */ 594 if (cause_errthrow(s, severe, &ignore) == TRUE) 595 { 596 if (!ignore) 597 did_emsg = TRUE; 598 return TRUE; 599 } 600 601 /* set "v:errmsg", also when using ":silent! cmd" */ 602 set_vim_var_string(VV_ERRMSG, s, -1); 603 #endif 604 605 /* 606 * When using ":silent! cmd" ignore error messsages. 607 * But do write it to the redirection file. 608 */ 609 if (emsg_silent != 0) 610 { 611 msg_start(); 612 p = get_emsg_source(); 613 if (p != NULL) 614 { 615 STRCAT(p, "\n"); 616 redir_write(p, -1); 617 vim_free(p); 618 } 619 p = get_emsg_lnum(); 620 if (p != NULL) 621 { 622 STRCAT(p, "\n"); 623 redir_write(p, -1); 624 vim_free(p); 625 } 626 redir_write(s, -1); 627 return TRUE; 628 } 629 630 /* Reset msg_silent, an error causes messages to be switched back on. */ 631 msg_silent = 0; 632 cmd_silent = FALSE; 633 634 if (global_busy) /* break :global command */ 635 ++global_busy; 636 637 if (p_eb) 638 beep_flush(); /* also includes flush_buffers() */ 639 else 640 flush_buffers(FALSE); /* flush internal buffers */ 641 did_emsg = TRUE; /* flag for DoOneCmd() */ 642 } 643 644 emsg_on_display = TRUE; /* remember there is an error message */ 645 ++msg_scroll; /* don't overwrite a previous message */ 646 attr = hl_attr(HLF_E); /* set highlight mode for error messages */ 647 if (msg_scrolled != 0) 648 need_wait_return = TRUE; /* needed in case emsg() is called after 649 * wait_return has reset need_wait_return 650 * and a redraw is expected because 651 * msg_scrolled is non-zero */ 652 653 /* 654 * Display name and line number for the source of the error. 655 */ 656 msg_source(attr); 657 658 /* 659 * Display the error message itself. 660 */ 661 msg_nowait = FALSE; /* wait for this msg */ 662 return msg_attr(s, attr); 663 } 664 665 /* 666 * Print an error message with one "%s" and one string argument. 667 */ 668 int 669 emsg2(s, a1) 670 char_u *s, *a1; 671 { 672 return emsg3(s, a1, NULL); 673 } 674 675 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 676 677 void 678 emsg_invreg(name) 679 int name; 680 { 681 EMSG2(_("E354: Invalid register name: '%s'"), transchar(name)); 682 } 683 684 /* 685 * Like msg(), but truncate to a single line if p_shm contains 't', or when 686 * "force" is TRUE. This truncates in another way as for normal messages. 687 * Careful: The string may be changed by msg_may_trunc()! 688 * Returns a pointer to the printed message, if wait_return() not called. 689 */ 690 char_u * 691 msg_trunc_attr(s, force, attr) 692 char_u *s; 693 int force; 694 int attr; 695 { 696 int n; 697 698 /* Add message to history before truncating */ 699 add_msg_hist(s, -1, attr); 700 701 s = msg_may_trunc(force, s); 702 703 msg_hist_off = TRUE; 704 n = msg_attr(s, attr); 705 msg_hist_off = FALSE; 706 707 if (n) 708 return s; 709 return NULL; 710 } 711 712 /* 713 * Check if message "s" should be truncated at the start (for filenames). 714 * Return a pointer to where the truncated message starts. 715 * Note: May change the message by replacing a character with '<'. 716 */ 717 char_u * 718 msg_may_trunc(force, s) 719 int force; 720 char_u *s; 721 { 722 int n; 723 int room; 724 725 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 726 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 727 && (n = (int)STRLEN(s) - room) > 0) 728 { 729 #ifdef FEAT_MBYTE 730 if (has_mbyte) 731 { 732 int size = vim_strsize(s); 733 734 /* There may be room anyway when there are multibyte chars. */ 735 if (size <= room) 736 return s; 737 738 for (n = 0; size >= room; ) 739 { 740 size -= (*mb_ptr2cells)(s + n); 741 n += (*mb_ptr2len)(s + n); 742 } 743 --n; 744 } 745 #endif 746 s += n; 747 *s = '<'; 748 } 749 return s; 750 } 751 752 static void 753 add_msg_hist(s, len, attr) 754 char_u *s; 755 int len; /* -1 for undetermined length */ 756 int attr; 757 { 758 struct msg_hist *p; 759 760 if (msg_hist_off || msg_silent != 0) 761 return; 762 763 /* Don't let the message history get too big */ 764 while (msg_hist_len > MAX_MSG_HIST_LEN) 765 (void)delete_first_msg(); 766 767 /* allocate an entry and add the message at the end of the history */ 768 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 769 if (p != NULL) 770 { 771 if (len < 0) 772 len = (int)STRLEN(s); 773 /* remove leading and trailing newlines */ 774 while (len > 0 && *s == '\n') 775 { 776 ++s; 777 --len; 778 } 779 while (len > 0 && s[len - 1] == '\n') 780 --len; 781 p->msg = vim_strnsave(s, len); 782 p->next = NULL; 783 p->attr = attr; 784 if (last_msg_hist != NULL) 785 last_msg_hist->next = p; 786 last_msg_hist = p; 787 if (first_msg_hist == NULL) 788 first_msg_hist = last_msg_hist; 789 ++msg_hist_len; 790 } 791 } 792 793 /* 794 * Delete the first (oldest) message from the history. 795 * Returns FAIL if there are no messages. 796 */ 797 int 798 delete_first_msg() 799 { 800 struct msg_hist *p; 801 802 if (msg_hist_len <= 0) 803 return FAIL; 804 p = first_msg_hist; 805 first_msg_hist = p->next; 806 vim_free(p->msg); 807 vim_free(p); 808 --msg_hist_len; 809 return OK; 810 } 811 812 /* 813 * ":messages" command. 814 */ 815 /*ARGSUSED*/ 816 void 817 ex_messages(eap) 818 exarg_T *eap; 819 { 820 struct msg_hist *p; 821 char_u *s; 822 823 msg_hist_off = TRUE; 824 825 s = mch_getenv((char_u *)"LANG"); 826 if (s != NULL && *s != NUL) 827 msg_attr((char_u *) 828 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 829 hl_attr(HLF_T)); 830 831 for (p = first_msg_hist; p != NULL; p = p->next) 832 if (p->msg != NULL) 833 msg_attr(p->msg, p->attr); 834 835 msg_hist_off = FALSE; 836 } 837 838 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 839 /* 840 * Call this after prompting the user. This will avoid a hit-return message 841 * and a delay. 842 */ 843 void 844 msg_end_prompt() 845 { 846 need_wait_return = FALSE; 847 emsg_on_display = FALSE; 848 cmdline_row = msg_row; 849 msg_col = 0; 850 msg_clr_eos(); 851 } 852 #endif 853 854 /* 855 * wait for the user to hit a key (normally a return) 856 * if 'redraw' is TRUE, clear and redraw the screen 857 * if 'redraw' is FALSE, just redraw the screen 858 * if 'redraw' is -1, don't redraw at all 859 */ 860 void 861 wait_return(redraw) 862 int redraw; 863 { 864 int c; 865 int oldState; 866 int tmpState; 867 int had_got_int; 868 869 if (redraw == TRUE) 870 must_redraw = CLEAR; 871 872 /* If using ":silent cmd", don't wait for a return. Also don't set 873 * need_wait_return to do it later. */ 874 if (msg_silent != 0) 875 return; 876 877 /* 878 * With the global command (and some others) we only need one return at the 879 * end. Adjust cmdline_row to avoid the next message overwriting the last one. 880 * When inside vgetc(), we can't wait for a typed character at all. 881 */ 882 if (vgetc_busy > 0) 883 return; 884 if (no_wait_return) 885 { 886 need_wait_return = TRUE; 887 if (!exmode_active) 888 cmdline_row = msg_row; 889 return; 890 } 891 892 redir_off = TRUE; /* don't redirect this message */ 893 oldState = State; 894 if (quit_more) 895 { 896 c = CAR; /* just pretend CR was hit */ 897 quit_more = FALSE; 898 got_int = FALSE; 899 } 900 else if (exmode_active) 901 { 902 MSG_PUTS(" "); /* make sure the cursor is on the right line */ 903 c = CAR; /* no need for a return in ex mode */ 904 got_int = FALSE; 905 } 906 else 907 { 908 /* Make sure the hit-return prompt is on screen when 'guioptions' was 909 * just changed. */ 910 screenalloc(FALSE); 911 912 State = HITRETURN; 913 #ifdef FEAT_MOUSE 914 setmouse(); 915 #endif 916 #ifdef USE_ON_FLY_SCROLL 917 dont_scroll = TRUE; /* disallow scrolling here */ 918 #endif 919 hit_return_msg(); 920 921 do 922 { 923 /* Remember "got_int", if it is set vgetc() probably returns a 924 * CTRL-C, but we need to loop then. */ 925 had_got_int = got_int; 926 927 /* Don't do mappings here, we put the character back in the 928 * typeahead buffer. */ 929 ++no_mapping; 930 ++allow_keys; 931 c = safe_vgetc(); 932 if (had_got_int && !global_busy) 933 got_int = FALSE; 934 --no_mapping; 935 --allow_keys; 936 937 #ifdef FEAT_CLIPBOARD 938 /* Strange way to allow copying (yanking) a modeless selection at 939 * the hit-enter prompt. Use CTRL-Y, because the same is used in 940 * Cmdline-mode and it's harmless when there is no selection. */ 941 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 942 { 943 clip_copy_modeless_selection(TRUE); 944 c = K_IGNORE; 945 } 946 #endif 947 /* 948 * Allow scrolling back in the messages. 949 * Also accept scroll-down commands when messages fill the screen, 950 * to avoid that typing one 'j' too many makes the messages 951 * disappear. 952 */ 953 if (p_more && !p_cp) 954 { 955 if (c == 'b' || c == 'k' || c == 'u' || c == 'g' || c == K_UP) 956 { 957 /* scroll back to show older messages */ 958 do_more_prompt(c); 959 if (quit_more) 960 { 961 c = CAR; /* just pretend CR was hit */ 962 quit_more = FALSE; 963 got_int = FALSE; 964 } 965 else 966 { 967 c = K_IGNORE; 968 hit_return_msg(); 969 } 970 } 971 else if (msg_scrolled > Rows - 2 972 && (c == 'j' || c == K_DOWN || c == 'd')) 973 c = K_IGNORE; 974 } 975 } while ((had_got_int && c == Ctrl_C) 976 || c == K_IGNORE 977 #ifdef FEAT_GUI 978 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 979 #endif 980 #ifdef FEAT_MOUSE 981 || c == K_LEFTDRAG || c == K_LEFTRELEASE 982 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 983 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 984 || c == K_MOUSEDOWN || c == K_MOUSEUP 985 || (!mouse_has(MOUSE_RETURN) 986 && mouse_row < msg_row 987 && (c == K_LEFTMOUSE 988 || c == K_MIDDLEMOUSE 989 || c == K_RIGHTMOUSE 990 || c == K_X1MOUSE 991 || c == K_X2MOUSE)) 992 #endif 993 ); 994 ui_breakcheck(); 995 #ifdef FEAT_MOUSE 996 /* 997 * Avoid that the mouse-up event causes visual mode to start. 998 */ 999 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 1000 || c == K_X1MOUSE || c == K_X2MOUSE) 1001 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 1002 else 1003 #endif 1004 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 1005 { 1006 /* Put the character back in the typeahead buffer. Don't use the 1007 * stuff buffer, because lmaps wouldn't work. */ 1008 ins_char_typebuf(c); 1009 do_redraw = TRUE; /* need a redraw even though there is 1010 typeahead */ 1011 } 1012 } 1013 redir_off = FALSE; 1014 1015 /* 1016 * If the user hits ':', '?' or '/' we get a command line from the next 1017 * line. 1018 */ 1019 if (c == ':' || c == '?' || c == '/') 1020 { 1021 if (!exmode_active) 1022 cmdline_row = msg_row; 1023 skip_redraw = TRUE; /* skip redraw once */ 1024 do_redraw = FALSE; 1025 } 1026 1027 /* 1028 * If the window size changed set_shellsize() will redraw the screen. 1029 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1030 * typed. 1031 */ 1032 tmpState = State; 1033 State = oldState; /* restore State before set_shellsize */ 1034 #ifdef FEAT_MOUSE 1035 setmouse(); 1036 #endif 1037 msg_check(); 1038 1039 #if defined(UNIX) || defined(VMS) 1040 /* 1041 * When switching screens, we need to output an extra newline on exit. 1042 */ 1043 if (swapping_screen() && !termcap_active) 1044 newline_on_exit = TRUE; 1045 #endif 1046 1047 need_wait_return = FALSE; 1048 did_wait_return = TRUE; 1049 emsg_on_display = FALSE; /* can delete error message now */ 1050 lines_left = -1; /* reset lines_left at next msg_start() */ 1051 reset_last_sourcing(); 1052 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1053 (Rows - cmdline_row - 1) * Columns + sc_col) 1054 { 1055 vim_free(keep_msg); 1056 keep_msg = NULL; /* don't redisplay message, it's too long */ 1057 } 1058 1059 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1060 { 1061 starttermcap(); /* start termcap before redrawing */ 1062 shell_resized(); 1063 } 1064 else if (!skip_redraw 1065 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1066 { 1067 starttermcap(); /* start termcap before redrawing */ 1068 redraw_later(VALID); 1069 } 1070 } 1071 1072 /* 1073 * Write the hit-return prompt. 1074 */ 1075 static void 1076 hit_return_msg() 1077 { 1078 int save_p_more = p_more; 1079 1080 p_more = FALSE; /* don't want see this message when scrolling back */ 1081 if (msg_didout) /* start on a new line */ 1082 msg_putchar('\n'); 1083 if (got_int) 1084 MSG_PUTS(_("Interrupt: ")); 1085 1086 MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), hl_attr(HLF_R)); 1087 if (!msg_use_printf()) 1088 msg_clr_eos(); 1089 p_more = save_p_more; 1090 } 1091 1092 /* 1093 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1094 */ 1095 void 1096 set_keep_msg(s, attr) 1097 char_u *s; 1098 int attr; 1099 { 1100 vim_free(keep_msg); 1101 if (s != NULL && msg_silent == 0) 1102 keep_msg = vim_strsave(s); 1103 else 1104 keep_msg = NULL; 1105 keep_msg_more = FALSE; 1106 keep_msg_attr = attr; 1107 } 1108 1109 #if defined(FEAT_TERMRESPONSE) || defined(PROTO) 1110 /* 1111 * If there currently is a message being displayed, set "keep_msg" to it, so 1112 * that it will be displayed again after redraw. 1113 */ 1114 void 1115 set_keep_msg_from_hist() 1116 { 1117 if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0 1118 && (State & NORMAL)) 1119 set_keep_msg(last_msg_hist->msg, last_msg_hist->attr); 1120 } 1121 #endif 1122 1123 /* 1124 * Prepare for outputting characters in the command line. 1125 */ 1126 void 1127 msg_start() 1128 { 1129 int did_return = FALSE; 1130 1131 vim_free(keep_msg); 1132 keep_msg = NULL; /* don't display old message now */ 1133 if (!msg_scroll && full_screen) /* overwrite last message */ 1134 { 1135 msg_row = cmdline_row; 1136 msg_col = 1137 #ifdef FEAT_RIGHTLEFT 1138 cmdmsg_rl ? Columns - 1 : 1139 #endif 1140 0; 1141 } 1142 else if (msg_didout) /* start message on next line */ 1143 { 1144 msg_putchar('\n'); 1145 did_return = TRUE; 1146 if (exmode_active != EXMODE_NORMAL) 1147 cmdline_row = msg_row; 1148 } 1149 if (!msg_didany || lines_left < 0) 1150 msg_starthere(); 1151 if (msg_silent == 0) 1152 { 1153 msg_didout = FALSE; /* no output on current line yet */ 1154 cursor_off(); 1155 } 1156 1157 /* when redirecting, may need to start a new line. */ 1158 if (!did_return) 1159 redir_write((char_u *)"\n", -1); 1160 } 1161 1162 /* 1163 * Note that the current msg position is where messages start. 1164 */ 1165 void 1166 msg_starthere() 1167 { 1168 lines_left = cmdline_row; 1169 msg_didany = FALSE; 1170 } 1171 1172 void 1173 msg_putchar(c) 1174 int c; 1175 { 1176 msg_putchar_attr(c, 0); 1177 } 1178 1179 void 1180 msg_putchar_attr(c, attr) 1181 int c; 1182 int attr; 1183 { 1184 #ifdef FEAT_MBYTE 1185 char_u buf[MB_MAXBYTES + 1]; 1186 #else 1187 char_u buf[4]; 1188 #endif 1189 1190 if (IS_SPECIAL(c)) 1191 { 1192 buf[0] = K_SPECIAL; 1193 buf[1] = K_SECOND(c); 1194 buf[2] = K_THIRD(c); 1195 buf[3] = NUL; 1196 } 1197 else 1198 { 1199 #ifdef FEAT_MBYTE 1200 buf[(*mb_char2bytes)(c, buf)] = NUL; 1201 #else 1202 buf[0] = c; 1203 buf[1] = NUL; 1204 #endif 1205 } 1206 msg_puts_attr(buf, attr); 1207 } 1208 1209 void 1210 msg_outnum(n) 1211 long n; 1212 { 1213 char_u buf[20]; 1214 1215 sprintf((char *)buf, "%ld", n); 1216 msg_puts(buf); 1217 } 1218 1219 void 1220 msg_home_replace(fname) 1221 char_u *fname; 1222 { 1223 msg_home_replace_attr(fname, 0); 1224 } 1225 1226 #if defined(FEAT_FIND_ID) || defined(PROTO) 1227 void 1228 msg_home_replace_hl(fname) 1229 char_u *fname; 1230 { 1231 msg_home_replace_attr(fname, hl_attr(HLF_D)); 1232 } 1233 #endif 1234 1235 static void 1236 msg_home_replace_attr(fname, attr) 1237 char_u *fname; 1238 int attr; 1239 { 1240 char_u *name; 1241 1242 name = home_replace_save(NULL, fname); 1243 if (name != NULL) 1244 msg_outtrans_attr(name, attr); 1245 vim_free(name); 1246 } 1247 1248 /* 1249 * Output 'len' characters in 'str' (including NULs) with translation 1250 * if 'len' is -1, output upto a NUL character. 1251 * Use attributes 'attr'. 1252 * Return the number of characters it takes on the screen. 1253 */ 1254 int 1255 msg_outtrans(str) 1256 char_u *str; 1257 { 1258 return msg_outtrans_attr(str, 0); 1259 } 1260 1261 int 1262 msg_outtrans_attr(str, attr) 1263 char_u *str; 1264 int attr; 1265 { 1266 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1267 } 1268 1269 int 1270 msg_outtrans_len(str, len) 1271 char_u *str; 1272 int len; 1273 { 1274 return msg_outtrans_len_attr(str, len, 0); 1275 } 1276 1277 /* 1278 * Output one character at "p". Return pointer to the next character. 1279 * Handles multi-byte characters. 1280 */ 1281 char_u * 1282 msg_outtrans_one(p, attr) 1283 char_u *p; 1284 int attr; 1285 { 1286 #ifdef FEAT_MBYTE 1287 int l; 1288 1289 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1290 { 1291 msg_outtrans_len_attr(p, l, attr); 1292 return p + l; 1293 } 1294 #endif 1295 msg_puts_attr(transchar_byte(*p), attr); 1296 return p + 1; 1297 } 1298 1299 int 1300 msg_outtrans_len_attr(msgstr, len, attr) 1301 char_u *msgstr; 1302 int len; 1303 int attr; 1304 { 1305 int retval = 0; 1306 char_u *str = msgstr; 1307 char_u *plain_start = msgstr; 1308 char_u *s; 1309 #ifdef FEAT_MBYTE 1310 int mb_l; 1311 int c; 1312 #endif 1313 1314 /* if MSG_HIST flag set, add message to history */ 1315 if (attr & MSG_HIST) 1316 { 1317 add_msg_hist(str, len, attr); 1318 attr &= ~MSG_HIST; 1319 } 1320 1321 #ifdef FEAT_MBYTE 1322 /* If the string starts with a composing character first draw a space on 1323 * which the composing char can be drawn. */ 1324 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1325 msg_puts_attr((char_u *)" ", attr); 1326 #endif 1327 1328 /* 1329 * Go over the string. Special characters are translated and printed. 1330 * Normal characters are printed several at a time. 1331 */ 1332 while (--len >= 0) 1333 { 1334 #ifdef FEAT_MBYTE 1335 if (enc_utf8) 1336 /* Don't include composing chars after the end. */ 1337 mb_l = utfc_ptr2len_len(str, len + 1); 1338 else if (has_mbyte) 1339 mb_l = (*mb_ptr2len)(str); 1340 else 1341 mb_l = 1; 1342 if (has_mbyte && mb_l > 1) 1343 { 1344 c = (*mb_ptr2char)(str); 1345 if (vim_isprintc(c)) 1346 /* printable multi-byte char: count the cells. */ 1347 retval += (*mb_ptr2cells)(str); 1348 else 1349 { 1350 /* unprintable multi-byte char: print the printable chars so 1351 * far and the translation of the unprintable char. */ 1352 if (str > plain_start) 1353 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1354 attr); 1355 plain_start = str + mb_l; 1356 msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr); 1357 retval += char2cells(c); 1358 } 1359 len -= mb_l - 1; 1360 str += mb_l; 1361 } 1362 else 1363 #endif 1364 { 1365 s = transchar_byte(*str); 1366 if (s[1] != NUL) 1367 { 1368 /* unprintable char: print the printable chars so far and the 1369 * translation of the unprintable char. */ 1370 if (str > plain_start) 1371 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1372 attr); 1373 plain_start = str + 1; 1374 msg_puts_attr(s, attr == 0 ? hl_attr(HLF_8) : attr); 1375 } 1376 retval += ptr2cells(str); 1377 ++str; 1378 } 1379 } 1380 1381 if (str > plain_start) 1382 /* print the printable chars at the end */ 1383 msg_puts_attr_len(plain_start, (int)(str - plain_start), attr); 1384 1385 return retval; 1386 } 1387 1388 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1389 void 1390 msg_make(arg) 1391 char_u *arg; 1392 { 1393 int i; 1394 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1395 1396 arg = skipwhite(arg); 1397 for (i = 5; *arg && i >= 0; --i) 1398 if (*arg++ != str[i]) 1399 break; 1400 if (i < 0) 1401 { 1402 msg_putchar('\n'); 1403 for (i = 0; rs[i]; ++i) 1404 msg_putchar(rs[i] - 3); 1405 } 1406 } 1407 #endif 1408 1409 /* 1410 * Output the string 'str' upto a NUL character. 1411 * Return the number of characters it takes on the screen. 1412 * 1413 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1414 * following character and shown as <F1>, <S-Up> etc. Any other character 1415 * which is not printable shown in <> form. 1416 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1417 * If a character is displayed in one of these special ways, is also 1418 * highlighted (its highlight name is '8' in the p_hl variable). 1419 * Otherwise characters are not highlighted. 1420 * This function is used to show mappings, where we want to see how to type 1421 * the character/string -- webb 1422 */ 1423 int 1424 msg_outtrans_special(strstart, from) 1425 char_u *strstart; 1426 int from; /* TRUE for lhs of a mapping */ 1427 { 1428 char_u *str = strstart; 1429 int retval = 0; 1430 char_u *string; 1431 int attr; 1432 int len; 1433 1434 attr = hl_attr(HLF_8); 1435 while (*str != NUL) 1436 { 1437 /* Leading and trailing spaces need to be displayed in <> form. */ 1438 if ((str == strstart || str[1] == NUL) && *str == ' ') 1439 { 1440 string = (char_u *)"<Space>"; 1441 ++str; 1442 } 1443 else 1444 string = str2special(&str, from); 1445 len = vim_strsize(string); 1446 /* Highlight special keys */ 1447 msg_puts_attr(string, len > 1 1448 #ifdef FEAT_MBYTE 1449 && (*mb_ptr2len)(string) <= 1 1450 #endif 1451 ? attr : 0); 1452 retval += len; 1453 } 1454 return retval; 1455 } 1456 1457 /* 1458 * Return the printable string for the key codes at "*sp". 1459 * Used for translating the lhs or rhs of a mapping to printable chars. 1460 * Advances "sp" to the next code. 1461 */ 1462 char_u * 1463 str2special(sp, from) 1464 char_u **sp; 1465 int from; /* TRUE for lhs of mapping */ 1466 { 1467 int c; 1468 static char_u buf[7]; 1469 char_u *str = *sp; 1470 int modifiers = 0; 1471 int special = FALSE; 1472 1473 #ifdef FEAT_MBYTE 1474 if (has_mbyte) 1475 { 1476 char_u *p; 1477 1478 /* Try to un-escape a multi-byte character. Return the un-escaped 1479 * string if it is a multi-byte character. */ 1480 p = mb_unescape(sp); 1481 if (p != NULL) 1482 return p; 1483 } 1484 #endif 1485 1486 c = *str; 1487 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1488 { 1489 if (str[1] == KS_MODIFIER) 1490 { 1491 modifiers = str[2]; 1492 str += 3; 1493 c = *str; 1494 } 1495 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1496 { 1497 c = TO_SPECIAL(str[1], str[2]); 1498 str += 2; 1499 if (c == K_ZERO) /* display <Nul> as ^@ */ 1500 c = NUL; 1501 } 1502 if (IS_SPECIAL(c) || modifiers) /* special key */ 1503 special = TRUE; 1504 } 1505 *sp = str + 1; 1506 1507 #ifdef FEAT_MBYTE 1508 /* For multi-byte characters check for an illegal byte. */ 1509 if (has_mbyte && MB_BYTE2LEN(*str) > (*mb_ptr2len)(str)) 1510 { 1511 transchar_nonprint(buf, c); 1512 return buf; 1513 } 1514 #endif 1515 1516 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1517 * Use <Space> only for lhs of a mapping. */ 1518 if (special || char2cells(c) > 1 || (from && c == ' ')) 1519 return get_special_key_name(c, modifiers); 1520 buf[0] = c; 1521 buf[1] = NUL; 1522 return buf; 1523 } 1524 1525 /* 1526 * Translate a key sequence into special key names. 1527 */ 1528 void 1529 str2specialbuf(sp, buf, len) 1530 char_u *sp; 1531 char_u *buf; 1532 int len; 1533 { 1534 char_u *s; 1535 1536 *buf = NUL; 1537 while (*sp) 1538 { 1539 s = str2special(&sp, FALSE); 1540 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1541 STRCAT(buf, s); 1542 } 1543 } 1544 1545 /* 1546 * print line for :print or :list command 1547 */ 1548 void 1549 msg_prt_line(s, list) 1550 char_u *s; 1551 int list; 1552 { 1553 int c; 1554 int col = 0; 1555 int n_extra = 0; 1556 int c_extra = 0; 1557 char_u *p_extra = NULL; /* init to make SASC shut up */ 1558 int n; 1559 int attr = 0; 1560 char_u *trail = NULL; 1561 #ifdef FEAT_MBYTE 1562 int l; 1563 char_u buf[MB_MAXBYTES + 1]; 1564 #endif 1565 1566 if (curwin->w_p_list) 1567 list = TRUE; 1568 1569 /* find start of trailing whitespace */ 1570 if (list && lcs_trail) 1571 { 1572 trail = s + STRLEN(s); 1573 while (trail > s && vim_iswhite(trail[-1])) 1574 --trail; 1575 } 1576 1577 /* output a space for an empty line, otherwise the line will be 1578 * overwritten */ 1579 if (*s == NUL && !(list && lcs_eol != NUL)) 1580 msg_putchar(' '); 1581 1582 while (!got_int) 1583 { 1584 if (n_extra > 0) 1585 { 1586 --n_extra; 1587 if (c_extra) 1588 c = c_extra; 1589 else 1590 c = *p_extra++; 1591 } 1592 #ifdef FEAT_MBYTE 1593 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1594 { 1595 col += (*mb_ptr2cells)(s); 1596 mch_memmove(buf, s, (size_t)l); 1597 buf[l] = NUL; 1598 msg_puts(buf); 1599 s += l; 1600 continue; 1601 } 1602 #endif 1603 else 1604 { 1605 attr = 0; 1606 c = *s++; 1607 if (c == TAB && (!list || lcs_tab1)) 1608 { 1609 /* tab amount depends on current column */ 1610 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1611 if (!list) 1612 { 1613 c = ' '; 1614 c_extra = ' '; 1615 } 1616 else 1617 { 1618 c = lcs_tab1; 1619 c_extra = lcs_tab2; 1620 attr = hl_attr(HLF_8); 1621 } 1622 } 1623 else if (c == NUL && list && lcs_eol != NUL) 1624 { 1625 p_extra = (char_u *)""; 1626 c_extra = NUL; 1627 n_extra = 1; 1628 c = lcs_eol; 1629 attr = hl_attr(HLF_AT); 1630 --s; 1631 } 1632 else if (c != NUL && (n = byte2cells(c)) > 1) 1633 { 1634 n_extra = n - 1; 1635 p_extra = transchar_byte(c); 1636 c_extra = NUL; 1637 c = *p_extra++; 1638 /* Use special coloring to be able to distinguish <hex> from 1639 * the same in plain text. */ 1640 attr = hl_attr(HLF_8); 1641 } 1642 else if (c == ' ' && trail != NULL && s > trail) 1643 { 1644 c = lcs_trail; 1645 attr = hl_attr(HLF_8); 1646 } 1647 } 1648 1649 if (c == NUL) 1650 break; 1651 1652 msg_putchar_attr(c, attr); 1653 col++; 1654 } 1655 msg_clr_eos(); 1656 } 1657 1658 #ifdef FEAT_MBYTE 1659 /* 1660 * Use screen_puts() to output one multi-byte character. 1661 * Return the pointer "s" advanced to the next character. 1662 */ 1663 static char_u * 1664 screen_puts_mbyte(s, l, attr) 1665 char_u *s; 1666 int l; 1667 int attr; 1668 { 1669 int cw; 1670 1671 msg_didout = TRUE; /* remember that line is not empty */ 1672 cw = (*mb_ptr2cells)(s); 1673 if (cw > 1 && ( 1674 #ifdef FEAT_RIGHTLEFT 1675 cmdmsg_rl ? msg_col <= 1 : 1676 #endif 1677 msg_col == Columns - 1)) 1678 { 1679 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1680 msg_screen_putchar('>', hl_attr(HLF_AT)); 1681 return s; 1682 } 1683 1684 screen_puts_len(s, l, msg_row, msg_col, attr); 1685 #ifdef FEAT_RIGHTLEFT 1686 if (cmdmsg_rl) 1687 { 1688 msg_col -= cw; 1689 if (msg_col == 0) 1690 { 1691 msg_col = Columns; 1692 ++msg_row; 1693 } 1694 } 1695 else 1696 #endif 1697 { 1698 msg_col += cw; 1699 if (msg_col >= Columns) 1700 { 1701 msg_col = 0; 1702 ++msg_row; 1703 } 1704 } 1705 return s + l; 1706 } 1707 #endif 1708 1709 /* 1710 * Output a string to the screen at position msg_row, msg_col. 1711 * Update msg_row and msg_col for the next message. 1712 */ 1713 void 1714 msg_puts(s) 1715 char_u *s; 1716 { 1717 msg_puts_attr(s, 0); 1718 } 1719 1720 void 1721 msg_puts_title(s) 1722 char_u *s; 1723 { 1724 msg_puts_attr(s, hl_attr(HLF_T)); 1725 } 1726 1727 /* 1728 * Show a message in such a way that it always fits in the line. Cut out a 1729 * part in the middle and replace it with "..." when necessary. 1730 * Does not handle multi-byte characters! 1731 */ 1732 void 1733 msg_puts_long_attr(longstr, attr) 1734 char_u *longstr; 1735 int attr; 1736 { 1737 msg_puts_long_len_attr(longstr, (int)STRLEN(longstr), attr); 1738 } 1739 1740 void 1741 msg_puts_long_len_attr(longstr, len, attr) 1742 char_u *longstr; 1743 int len; 1744 int attr; 1745 { 1746 int slen = len; 1747 int room; 1748 1749 room = Columns - msg_col; 1750 if (len > room && room >= 20) 1751 { 1752 slen = (room - 3) / 2; 1753 msg_outtrans_len_attr(longstr, slen, attr); 1754 msg_puts_attr((char_u *)"...", hl_attr(HLF_8)); 1755 } 1756 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 1757 } 1758 1759 /* 1760 * Basic function for writing a message with highlight attributes. 1761 */ 1762 void 1763 msg_puts_attr(s, attr) 1764 char_u *s; 1765 int attr; 1766 { 1767 msg_puts_attr_len(s, -1, attr); 1768 } 1769 1770 /* 1771 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 1772 * When "maxlen" is -1 there is no maximum length. 1773 * When "maxlen" is >= 0 the message is not put in the history. 1774 */ 1775 static void 1776 msg_puts_attr_len(str, maxlen, attr) 1777 char_u *str; 1778 int maxlen; 1779 int attr; 1780 { 1781 /* 1782 * If redirection is on, also write to the redirection file. 1783 */ 1784 redir_write(str, maxlen); 1785 1786 /* 1787 * Don't print anything when using ":silent cmd". 1788 */ 1789 if (msg_silent != 0) 1790 return; 1791 1792 /* if MSG_HIST flag set, add message to history */ 1793 if ((attr & MSG_HIST) && maxlen < 0) 1794 { 1795 add_msg_hist(str, -1, attr); 1796 attr &= ~MSG_HIST; 1797 } 1798 1799 /* 1800 * When writing something to the screen after it has scrolled, requires a 1801 * wait-return prompt later. Needed when scrolling, resetting 1802 * need_wait_return after some prompt, and then outputting something 1803 * without scrolling 1804 */ 1805 if (msg_scrolled != 0 && !msg_scrolled_ign) 1806 need_wait_return = TRUE; 1807 msg_didany = TRUE; /* remember that something was outputted */ 1808 1809 /* 1810 * If there is no valid screen, use fprintf so we can see error messages. 1811 * If termcap is not active, we may be writing in an alternate console 1812 * window, cursor positioning may not work correctly (window size may be 1813 * different, e.g. for Win32 console) or we just don't know where the 1814 * cursor is. 1815 */ 1816 if (msg_use_printf()) 1817 msg_puts_printf(str, maxlen); 1818 else 1819 msg_puts_display(str, maxlen, attr, FALSE); 1820 } 1821 1822 /* 1823 * The display part of msg_puts_attr_len(). 1824 * May be called recursively to display scroll-back text. 1825 */ 1826 static void 1827 msg_puts_display(str, maxlen, attr, recurse) 1828 char_u *str; 1829 int maxlen; 1830 int attr; 1831 int recurse; 1832 { 1833 char_u *s = str; 1834 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 1835 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 1836 #ifdef FEAT_MBYTE 1837 int l; 1838 int cw; 1839 #endif 1840 char_u *sb_str = str; 1841 int sb_col = msg_col; 1842 int wrap; 1843 1844 did_wait_return = FALSE; 1845 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 1846 { 1847 /* 1848 * We are at the end of the screen line when: 1849 * - When outputting a newline. 1850 * - When outputting a character in the last column. 1851 */ 1852 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 1853 #ifdef FEAT_RIGHTLEFT 1854 cmdmsg_rl 1855 ? ( 1856 msg_col <= 1 1857 || (*s == TAB && msg_col <= 7) 1858 # ifdef FEAT_MBYTE 1859 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2) 1860 # endif 1861 ) 1862 : 1863 #endif 1864 (msg_col + t_col >= Columns - 1 1865 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 1866 # ifdef FEAT_MBYTE 1867 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1868 && msg_col + t_col >= Columns - 2) 1869 # endif 1870 )))) 1871 { 1872 /* 1873 * The screen is scrolled up when at the last row (some terminals 1874 * scroll automatically, some don't. To avoid problems we scroll 1875 * ourselves). 1876 */ 1877 if (t_col > 0) 1878 /* output postponed text */ 1879 t_puts(&t_col, t_s, s, attr); 1880 1881 /* When no more prompt an no more room, truncate here */ 1882 if (msg_no_more && lines_left == 0) 1883 break; 1884 1885 /* Scroll the screen up one line. */ 1886 msg_scroll_up(); 1887 1888 msg_row = Rows - 2; 1889 if (msg_col >= Columns) /* can happen after screen resize */ 1890 msg_col = Columns - 1; 1891 1892 /* Display char in last column before showing more-prompt. */ 1893 if (*s >= ' ' 1894 #ifdef FEAT_RIGHTLEFT 1895 && !cmdmsg_rl 1896 #endif 1897 ) 1898 { 1899 #ifdef FEAT_MBYTE 1900 if (has_mbyte) 1901 { 1902 if (enc_utf8 && maxlen >= 0) 1903 /* avoid including composing chars after the end */ 1904 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 1905 else 1906 l = (*mb_ptr2len)(s); 1907 s = screen_puts_mbyte(s, l, attr); 1908 } 1909 else 1910 #endif 1911 msg_screen_putchar(*s++, attr); 1912 } 1913 1914 if (p_more) 1915 /* store text for scrolling back */ 1916 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1917 1918 inc_msg_scrolled(); 1919 need_wait_return = TRUE; /* may need wait_return in main() */ 1920 if (must_redraw < VALID) 1921 must_redraw = VALID; 1922 redraw_cmdline = TRUE; 1923 if (cmdline_row > 0 && !exmode_active) 1924 --cmdline_row; 1925 1926 /* 1927 * If screen is completely filled and 'more' is set then wait 1928 * for a character. 1929 */ 1930 --lines_left; 1931 if (p_more && lines_left == 0 && State != HITRETURN 1932 && !msg_no_more && !exmode_active) 1933 { 1934 #ifdef FEAT_CON_DIALOG 1935 if (do_more_prompt(NUL)) 1936 s = confirm_msg_tail; 1937 #else 1938 (void)do_more_prompt(NUL); 1939 #endif 1940 if (quit_more) 1941 return; 1942 } 1943 1944 /* When we displayed a char in last column need to check if there 1945 * is still more. */ 1946 if (*s >= ' ' 1947 #ifdef FEAT_RIGHTLEFT 1948 && !cmdmsg_rl 1949 #endif 1950 ) 1951 continue; 1952 } 1953 1954 wrap = *s == '\n' 1955 || msg_col + t_col >= Columns 1956 #ifdef FEAT_MBYTE 1957 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1958 && msg_col + t_col >= Columns - 1) 1959 #endif 1960 ; 1961 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 1962 || *s == '\t' || *s == BELL)) 1963 /* output any postponed text */ 1964 t_puts(&t_col, t_s, s, attr); 1965 1966 if (wrap && p_more && !recurse) 1967 /* store text for scrolling back */ 1968 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1969 1970 if (*s == '\n') /* go to next line */ 1971 { 1972 msg_didout = FALSE; /* remember that line is empty */ 1973 #ifdef FEAT_RIGHTLEFT 1974 if (cmdmsg_rl) 1975 msg_col = Columns - 1; 1976 else 1977 #endif 1978 msg_col = 0; 1979 if (++msg_row >= Rows) /* safety check */ 1980 msg_row = Rows - 1; 1981 } 1982 else if (*s == '\r') /* go to column 0 */ 1983 { 1984 msg_col = 0; 1985 } 1986 else if (*s == '\b') /* go to previous char */ 1987 { 1988 if (msg_col) 1989 --msg_col; 1990 } 1991 else if (*s == TAB) /* translate Tab into spaces */ 1992 { 1993 do 1994 msg_screen_putchar(' ', attr); 1995 while (msg_col & 7); 1996 } 1997 else if (*s == BELL) /* beep (from ":sh") */ 1998 vim_beep(); 1999 else 2000 { 2001 #ifdef FEAT_MBYTE 2002 if (has_mbyte) 2003 { 2004 cw = (*mb_ptr2cells)(s); 2005 if (enc_utf8 && maxlen >= 0) 2006 /* avoid including composing chars after the end */ 2007 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2008 else 2009 l = (*mb_ptr2len)(s); 2010 } 2011 else 2012 { 2013 cw = 1; 2014 l = 1; 2015 } 2016 #endif 2017 /* When drawing from right to left or when a double-wide character 2018 * doesn't fit, draw a single character here. Otherwise collect 2019 * characters and draw them all at once later. */ 2020 #if defined(FEAT_RIGHTLEFT) || defined(FEAT_MBYTE) 2021 if ( 2022 # ifdef FEAT_RIGHTLEFT 2023 cmdmsg_rl 2024 # ifdef FEAT_MBYTE 2025 || 2026 # endif 2027 # endif 2028 # ifdef FEAT_MBYTE 2029 (cw > 1 && msg_col + t_col >= Columns - 1) 2030 # endif 2031 ) 2032 { 2033 # ifdef FEAT_MBYTE 2034 if (l > 1) 2035 s = screen_puts_mbyte(s, l, attr) - 1; 2036 else 2037 # endif 2038 msg_screen_putchar(*s, attr); 2039 } 2040 else 2041 #endif 2042 { 2043 /* postpone this character until later */ 2044 if (t_col == 0) 2045 t_s = s; 2046 #ifdef FEAT_MBYTE 2047 t_col += cw; 2048 s += l - 1; 2049 #else 2050 ++t_col; 2051 #endif 2052 } 2053 } 2054 ++s; 2055 } 2056 2057 /* output any postponed text */ 2058 if (t_col > 0) 2059 t_puts(&t_col, t_s, s, attr); 2060 if (p_more && !recurse) 2061 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2062 2063 msg_check(); 2064 } 2065 2066 /* 2067 * Scroll the screen up one line for displaying the next message line. 2068 */ 2069 static void 2070 msg_scroll_up() 2071 { 2072 #ifdef FEAT_GUI 2073 /* Remove the cursor before scrolling, ScreenLines[] is going 2074 * to become invalid. */ 2075 if (gui.in_use) 2076 gui_undraw_cursor(); 2077 #endif 2078 /* scrolling up always works */ 2079 screen_del_lines(0, 0, 1, (int)Rows, TRUE, NULL); 2080 2081 if (!can_clear((char_u *)" ")) 2082 { 2083 /* Scrolling up doesn't result in the right background. Set the 2084 * background here. It's not efficient, but avoids that we have to do 2085 * it all over the code. */ 2086 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2087 2088 /* Also clear the last char of the last but one line if it was not 2089 * cleared before to avoid a scroll-up. */ 2090 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2091 screen_fill((int)Rows - 2, (int)Rows - 1, 2092 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2093 } 2094 } 2095 2096 /* 2097 * Increment "msg_scrolled". 2098 */ 2099 static void 2100 inc_msg_scrolled() 2101 { 2102 #ifdef FEAT_EVAL 2103 if (*get_vim_var_str(VV_SCROLLSTART) == NUL) 2104 { 2105 char_u *p = sourcing_name; 2106 char_u *tofree = NULL; 2107 int len; 2108 2109 /* v:scrollstart is empty, set it to the script/function name and line 2110 * number */ 2111 if (p == NULL) 2112 p = (char_u *)_("Unknown"); 2113 else 2114 { 2115 len = (int)STRLEN(p) + 40; 2116 tofree = alloc(len); 2117 if (tofree != NULL) 2118 { 2119 vim_snprintf((char *)tofree, len, _("%s line %ld"), 2120 p, (long)sourcing_lnum); 2121 p = tofree; 2122 } 2123 } 2124 set_vim_var_string(VV_SCROLLSTART, p, -1); 2125 vim_free(tofree); 2126 } 2127 #endif 2128 ++msg_scrolled; 2129 } 2130 2131 /* 2132 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2133 * store the displayed text and remember where screen lines start. 2134 */ 2135 typedef struct msgchunk_S msgchunk_T; 2136 struct msgchunk_S 2137 { 2138 msgchunk_T *sb_next; 2139 msgchunk_T *sb_prev; 2140 char sb_eol; /* TRUE when line ends after this text */ 2141 int sb_msg_col; /* column in which text starts */ 2142 int sb_attr; /* text attributes */ 2143 char_u sb_text[1]; /* text to be displayed, actually longer */ 2144 }; 2145 2146 static msgchunk_T *last_msgchunk = NULL; /* last displayed text */ 2147 2148 static msgchunk_T *msg_sb_start __ARGS((msgchunk_T *mps)); 2149 static msgchunk_T *disp_sb_line __ARGS((int row, msgchunk_T *smp)); 2150 2151 static int do_clear_sb_text = FALSE; /* clear text on next msg */ 2152 2153 /* 2154 * Store part of a printed message for displaying when scrolling back. 2155 */ 2156 static void 2157 store_sb_text(sb_str, s, attr, sb_col, finish) 2158 char_u **sb_str; /* start of string */ 2159 char_u *s; /* just after string */ 2160 int attr; 2161 int *sb_col; 2162 int finish; /* line ends */ 2163 { 2164 msgchunk_T *mp; 2165 2166 if (do_clear_sb_text) 2167 { 2168 clear_sb_text(); 2169 do_clear_sb_text = FALSE; 2170 } 2171 2172 if (s > *sb_str) 2173 { 2174 mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str))); 2175 if (mp != NULL) 2176 { 2177 mp->sb_eol = finish; 2178 mp->sb_msg_col = *sb_col; 2179 mp->sb_attr = attr; 2180 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2181 2182 if (last_msgchunk == NULL) 2183 { 2184 last_msgchunk = mp; 2185 mp->sb_prev = NULL; 2186 } 2187 else 2188 { 2189 mp->sb_prev = last_msgchunk; 2190 last_msgchunk->sb_next = mp; 2191 last_msgchunk = mp; 2192 } 2193 mp->sb_next = NULL; 2194 } 2195 } 2196 else if (finish && last_msgchunk != NULL) 2197 last_msgchunk->sb_eol = TRUE; 2198 2199 *sb_str = s; 2200 *sb_col = 0; 2201 } 2202 2203 /* 2204 * Finished showing messages, clear the scroll-back text on the next message. 2205 */ 2206 void 2207 may_clear_sb_text() 2208 { 2209 do_clear_sb_text = TRUE; 2210 } 2211 2212 /* 2213 * Clear any text remembered for scrolling back. 2214 * Called when redrawing the screen. 2215 */ 2216 void 2217 clear_sb_text() 2218 { 2219 msgchunk_T *mp; 2220 2221 while (last_msgchunk != NULL) 2222 { 2223 mp = last_msgchunk->sb_prev; 2224 vim_free(last_msgchunk); 2225 last_msgchunk = mp; 2226 } 2227 } 2228 2229 /* 2230 * "g<" command. 2231 */ 2232 void 2233 show_sb_text() 2234 { 2235 msgchunk_T *mp; 2236 2237 /* Only show somethign if there is more than one line, otherwise it looks 2238 * weird, typing a command without output results in one line. */ 2239 mp = msg_sb_start(last_msgchunk); 2240 if (mp == NULL || mp->sb_prev == NULL) 2241 vim_beep(); 2242 else 2243 { 2244 do_more_prompt('G'); 2245 wait_return(FALSE); 2246 } 2247 } 2248 2249 /* 2250 * Move to the start of screen line in already displayed text. 2251 */ 2252 static msgchunk_T * 2253 msg_sb_start(mps) 2254 msgchunk_T *mps; 2255 { 2256 msgchunk_T *mp = mps; 2257 2258 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2259 mp = mp->sb_prev; 2260 return mp; 2261 } 2262 2263 /* 2264 * Display a screen line from previously displayed text at row "row". 2265 * Returns a pointer to the text for the next line (can be NULL). 2266 */ 2267 static msgchunk_T * 2268 disp_sb_line(row, smp) 2269 int row; 2270 msgchunk_T *smp; 2271 { 2272 msgchunk_T *mp = smp; 2273 char_u *p; 2274 2275 for (;;) 2276 { 2277 msg_row = row; 2278 msg_col = mp->sb_msg_col; 2279 p = mp->sb_text; 2280 if (*p == '\n') /* don't display the line break */ 2281 ++p; 2282 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2283 if (mp->sb_eol || mp->sb_next == NULL) 2284 break; 2285 mp = mp->sb_next; 2286 } 2287 return mp->sb_next; 2288 } 2289 2290 /* 2291 * Output any postponed text for msg_puts_attr_len(). 2292 */ 2293 static void 2294 t_puts(t_col, t_s, s, attr) 2295 int *t_col; 2296 char_u *t_s; 2297 char_u *s; 2298 int attr; 2299 { 2300 /* output postponed text */ 2301 msg_didout = TRUE; /* remember that line is not empty */ 2302 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2303 msg_col += *t_col; 2304 *t_col = 0; 2305 #ifdef FEAT_MBYTE 2306 /* If the string starts with a composing character don't increment the 2307 * column position for it. */ 2308 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2309 --msg_col; 2310 #endif 2311 if (msg_col >= Columns) 2312 { 2313 msg_col = 0; 2314 ++msg_row; 2315 } 2316 } 2317 2318 /* 2319 * Returns TRUE when messages should be printed with mch_errmsg(). 2320 * This is used when there is no valid screen, so we can see error messages. 2321 * If termcap is not active, we may be writing in an alternate console 2322 * window, cursor positioning may not work correctly (window size may be 2323 * different, e.g. for Win32 console) or we just don't know where the 2324 * cursor is. 2325 */ 2326 int 2327 msg_use_printf() 2328 { 2329 return (!msg_check_screen() 2330 #if defined(WIN3264) && !defined(FEAT_GUI_MSWIN) 2331 || !termcap_active 2332 #endif 2333 || (swapping_screen() && !termcap_active) 2334 ); 2335 } 2336 2337 /* 2338 * Print a message when there is no valid screen. 2339 */ 2340 static void 2341 msg_puts_printf(str, maxlen) 2342 char_u *str; 2343 int maxlen; 2344 { 2345 char_u *s = str; 2346 char_u buf[4]; 2347 char_u *p; 2348 2349 #ifdef WIN3264 2350 if (!(silent_mode && p_verbose == 0)) 2351 mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */ 2352 #endif 2353 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 2354 { 2355 if (!(silent_mode && p_verbose == 0)) 2356 { 2357 /* NL --> CR NL translation (for Unix, not for "--version") */ 2358 /* NL --> CR translation (for Mac) */ 2359 p = &buf[0]; 2360 if (*s == '\n' && !info_message) 2361 *p++ = '\r'; 2362 #if defined(USE_CR) && !defined(MACOS_X_UNIX) 2363 else 2364 #endif 2365 *p++ = *s; 2366 *p = '\0'; 2367 if (info_message) /* informative message, not an error */ 2368 mch_msg((char *)buf); 2369 else 2370 mch_errmsg((char *)buf); 2371 } 2372 2373 /* primitive way to compute the current column */ 2374 #ifdef FEAT_RIGHTLEFT 2375 if (cmdmsg_rl) 2376 { 2377 if (*s == '\r' || *s == '\n') 2378 msg_col = Columns - 1; 2379 else 2380 --msg_col; 2381 } 2382 else 2383 #endif 2384 { 2385 if (*s == '\r' || *s == '\n') 2386 msg_col = 0; 2387 else 2388 ++msg_col; 2389 } 2390 ++s; 2391 } 2392 msg_didout = TRUE; /* assume that line is not empty */ 2393 2394 #ifdef WIN3264 2395 if (!(silent_mode && p_verbose == 0)) 2396 mch_settmode(TMODE_RAW); 2397 #endif 2398 } 2399 2400 /* 2401 * Show the more-prompt and handle the user response. 2402 * This takes care of scrolling back and displaying previously displayed text. 2403 * When at hit-enter prompt "typed_char" is the already typed character, 2404 * otherwise it's NUL. 2405 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2406 */ 2407 static int 2408 do_more_prompt(typed_char) 2409 int typed_char; 2410 { 2411 int used_typed_char = typed_char; 2412 int oldState = State; 2413 int c; 2414 #ifdef FEAT_CON_DIALOG 2415 int retval = FALSE; 2416 #endif 2417 int scroll; 2418 msgchunk_T *mp_last = NULL; 2419 msgchunk_T *mp; 2420 int i; 2421 2422 if (typed_char == 'G') 2423 { 2424 /* "g<": Find first line on the last page. */ 2425 mp_last = msg_sb_start(last_msgchunk); 2426 for (i = 0; i < Rows - 2 && mp_last != NULL 2427 && mp_last->sb_prev != NULL; ++i) 2428 mp_last = msg_sb_start(mp_last->sb_prev); 2429 } 2430 2431 State = ASKMORE; 2432 #ifdef FEAT_MOUSE 2433 setmouse(); 2434 #endif 2435 if (typed_char == NUL) 2436 msg_moremsg(FALSE); 2437 for (;;) 2438 { 2439 /* 2440 * Get a typed character directly from the user. 2441 */ 2442 if (used_typed_char != NUL) 2443 { 2444 c = used_typed_char; /* was typed at hit-enter prompt */ 2445 used_typed_char = NUL; 2446 } 2447 else 2448 c = get_keystroke(); 2449 2450 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2451 if (c == K_MENU) 2452 { 2453 int idx = get_menu_index(current_menu, ASKMORE); 2454 2455 /* Used a menu. If it starts with CTRL-Y, it must 2456 * be a "Copy" for the clipboard. Otherwise 2457 * assume that we end */ 2458 if (idx == MENU_INDEX_INVALID) 2459 continue; 2460 c = *current_menu->strings[idx]; 2461 if (c != NUL && current_menu->strings[idx][1] != NUL) 2462 ins_typebuf(current_menu->strings[idx] + 1, 2463 current_menu->noremap[idx], 0, TRUE, 2464 current_menu->silent[idx]); 2465 } 2466 #endif 2467 2468 scroll = 0; 2469 switch (c) 2470 { 2471 case BS: /* scroll one line back */ 2472 case K_BS: 2473 case 'k': 2474 case K_UP: 2475 scroll = -1; 2476 break; 2477 2478 case CAR: /* one extra line */ 2479 case NL: 2480 case 'j': 2481 case K_DOWN: 2482 scroll = 1; 2483 break; 2484 2485 case 'u': /* Up half a page */ 2486 case K_PAGEUP: 2487 scroll = -(Rows / 2); 2488 break; 2489 2490 case 'd': /* Down half a page */ 2491 scroll = Rows / 2; 2492 break; 2493 2494 case 'b': /* one page back */ 2495 scroll = -(Rows - 1); 2496 break; 2497 2498 case ' ': /* one extra page */ 2499 case K_PAGEDOWN: 2500 case K_LEFTMOUSE: 2501 scroll = Rows - 1; 2502 break; 2503 2504 case 'g': /* all the way back to the start */ 2505 scroll = -999999; 2506 break; 2507 2508 case 'G': /* all the way to the end */ 2509 scroll = 999999; 2510 lines_left = 999999; 2511 break; 2512 2513 case ':': /* start new command line */ 2514 #ifdef FEAT_CON_DIALOG 2515 if (!confirm_msg_used) 2516 #endif 2517 { 2518 /* Since got_int is set all typeahead will be flushed, but we 2519 * want to keep this ':', remember that in a special way. */ 2520 typeahead_noflush(':'); 2521 cmdline_row = Rows - 1; /* put ':' on this line */ 2522 skip_redraw = TRUE; /* skip redraw once */ 2523 need_wait_return = FALSE; /* don't wait in main() */ 2524 } 2525 /*FALLTHROUGH*/ 2526 case 'q': /* quit */ 2527 case Ctrl_C: 2528 case ESC: 2529 #ifdef FEAT_CON_DIALOG 2530 if (confirm_msg_used) 2531 { 2532 /* Jump to the choices of the dialog. */ 2533 retval = TRUE; 2534 lines_left = Rows - 1; 2535 } 2536 else 2537 #endif 2538 { 2539 got_int = TRUE; 2540 quit_more = TRUE; 2541 } 2542 break; 2543 2544 #ifdef FEAT_CLIPBOARD 2545 case Ctrl_Y: 2546 /* Strange way to allow copying (yanking) a modeless 2547 * selection at the more prompt. Use CTRL-Y, 2548 * because the same is used in Cmdline-mode and at the 2549 * hit-enter prompt. However, scrolling one line up 2550 * might be expected... */ 2551 if (clip_star.state == SELECT_DONE) 2552 clip_copy_modeless_selection(TRUE); 2553 continue; 2554 #endif 2555 default: /* no valid response */ 2556 msg_moremsg(TRUE); 2557 continue; 2558 } 2559 2560 if (scroll != 0) 2561 { 2562 if (scroll < 0) 2563 { 2564 /* go to start of last line */ 2565 if (mp_last == NULL) 2566 mp = msg_sb_start(last_msgchunk); 2567 else if (mp_last->sb_prev != NULL) 2568 mp = msg_sb_start(mp_last->sb_prev); 2569 else 2570 mp = NULL; 2571 2572 /* go to start of line at top of the screen */ 2573 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2574 ++i) 2575 mp = msg_sb_start(mp->sb_prev); 2576 2577 if (mp != NULL && mp->sb_prev != NULL) 2578 { 2579 /* Find line to be displayed at top. */ 2580 for (i = 0; i > scroll; --i) 2581 { 2582 if (mp == NULL || mp->sb_prev == NULL) 2583 break; 2584 mp = msg_sb_start(mp->sb_prev); 2585 if (mp_last == NULL) 2586 mp_last = msg_sb_start(last_msgchunk); 2587 else 2588 mp_last = msg_sb_start(mp_last->sb_prev); 2589 } 2590 2591 if (scroll == -1 && screen_ins_lines(0, 0, 1, 2592 (int)Rows, NULL) == OK) 2593 { 2594 /* display line at top */ 2595 (void)disp_sb_line(0, mp); 2596 } 2597 else 2598 { 2599 /* redisplay all lines */ 2600 screenclear(); 2601 for (i = 0; mp != NULL && i < Rows - 1; ++i) 2602 { 2603 mp = disp_sb_line(i, mp); 2604 ++msg_scrolled; 2605 } 2606 } 2607 scroll = 0; 2608 } 2609 } 2610 else 2611 { 2612 /* First display any text that we scrolled back. */ 2613 while (scroll > 0 && mp_last != NULL) 2614 { 2615 /* scroll up, display line at bottom */ 2616 msg_scroll_up(); 2617 inc_msg_scrolled(); 2618 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2619 (int)Columns, ' ', ' ', 0); 2620 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2621 --scroll; 2622 } 2623 } 2624 2625 if (scroll < 0 || (scroll == 0 && mp_last != NULL)) 2626 { 2627 /* displayed the requested text, more prompt again */ 2628 screen_fill((int)Rows - 1, (int)Rows, 0, 2629 (int)Columns, ' ', ' ', 0); 2630 msg_moremsg(FALSE); 2631 continue; 2632 } 2633 2634 /* display more text, return to caller */ 2635 lines_left = scroll; 2636 } 2637 2638 break; 2639 } 2640 2641 /* clear the --more-- message */ 2642 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2643 State = oldState; 2644 #ifdef FEAT_MOUSE 2645 setmouse(); 2646 #endif 2647 if (quit_more) 2648 { 2649 msg_row = Rows - 1; 2650 msg_col = 0; 2651 } 2652 #ifdef FEAT_RIGHTLEFT 2653 else if (cmdmsg_rl) 2654 msg_col = Columns - 1; 2655 #endif 2656 2657 #ifdef FEAT_CON_DIALOG 2658 return retval; 2659 #else 2660 return FALSE; 2661 #endif 2662 } 2663 2664 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 2665 2666 #ifdef mch_errmsg 2667 # undef mch_errmsg 2668 #endif 2669 #ifdef mch_msg 2670 # undef mch_msg 2671 #endif 2672 2673 /* 2674 * Give an error message. To be used when the screen hasn't been initialized 2675 * yet. When stderr can't be used, collect error messages until the GUI has 2676 * started and they can be displayed in a message box. 2677 */ 2678 void 2679 mch_errmsg(str) 2680 char *str; 2681 { 2682 int len; 2683 2684 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2685 /* On Unix use stderr if it's a tty. 2686 * When not going to start the GUI also use stderr. 2687 * On Mac, when started from Finder, stderr is the console. */ 2688 if ( 2689 # ifdef UNIX 2690 # ifdef MACOS_X_UNIX 2691 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2692 # else 2693 isatty(2) 2694 # endif 2695 # ifdef FEAT_GUI 2696 || 2697 # endif 2698 # endif 2699 # ifdef FEAT_GUI 2700 !(gui.in_use || gui.starting) 2701 # endif 2702 ) 2703 { 2704 fprintf(stderr, "%s", str); 2705 return; 2706 } 2707 #endif 2708 2709 /* avoid a delay for a message that isn't there */ 2710 emsg_on_display = FALSE; 2711 2712 len = (int)STRLEN(str) + 1; 2713 if (error_ga.ga_growsize == 0) 2714 { 2715 error_ga.ga_growsize = 80; 2716 error_ga.ga_itemsize = 1; 2717 } 2718 if (ga_grow(&error_ga, len) == OK) 2719 { 2720 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 2721 (char_u *)str, len); 2722 #ifdef UNIX 2723 /* remove CR characters, they are displayed */ 2724 { 2725 char_u *p; 2726 2727 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 2728 for (;;) 2729 { 2730 p = vim_strchr(p, '\r'); 2731 if (p == NULL) 2732 break; 2733 *p = ' '; 2734 } 2735 } 2736 #endif 2737 --len; /* don't count the NUL at the end */ 2738 error_ga.ga_len += len; 2739 } 2740 } 2741 2742 /* 2743 * Give a message. To be used when the screen hasn't been initialized yet. 2744 * When there is no tty, collect messages until the GUI has started and they 2745 * can be displayed in a message box. 2746 */ 2747 void 2748 mch_msg(str) 2749 char *str; 2750 { 2751 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2752 /* On Unix use stdout if we have a tty. This allows "vim -h | more" and 2753 * uses mch_errmsg() when started from the desktop. 2754 * When not going to start the GUI also use stdout. 2755 * On Mac, when started from Finder, stderr is the console. */ 2756 if ( 2757 # ifdef UNIX 2758 # ifdef MACOS_X_UNIX 2759 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2760 # else 2761 isatty(2) 2762 # endif 2763 # ifdef FEAT_GUI 2764 || 2765 # endif 2766 # endif 2767 # ifdef FEAT_GUI 2768 !(gui.in_use || gui.starting) 2769 # endif 2770 ) 2771 { 2772 printf("%s", str); 2773 return; 2774 } 2775 # endif 2776 mch_errmsg(str); 2777 } 2778 #endif /* USE_MCH_ERRMSG */ 2779 2780 /* 2781 * Put a character on the screen at the current message position and advance 2782 * to the next position. Only for printable ASCII! 2783 */ 2784 static void 2785 msg_screen_putchar(c, attr) 2786 int c; 2787 int attr; 2788 { 2789 msg_didout = TRUE; /* remember that line is not empty */ 2790 screen_putchar(c, msg_row, msg_col, attr); 2791 #ifdef FEAT_RIGHTLEFT 2792 if (cmdmsg_rl) 2793 { 2794 if (--msg_col == 0) 2795 { 2796 msg_col = Columns; 2797 ++msg_row; 2798 } 2799 } 2800 else 2801 #endif 2802 { 2803 if (++msg_col >= Columns) 2804 { 2805 msg_col = 0; 2806 ++msg_row; 2807 } 2808 } 2809 } 2810 2811 void 2812 msg_moremsg(full) 2813 int full; 2814 { 2815 int attr; 2816 char_u *s = (char_u *)_("-- More --"); 2817 2818 attr = hl_attr(HLF_M); 2819 screen_puts(s, (int)Rows - 1, 0, attr); 2820 if (full) 2821 screen_puts((char_u *) 2822 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 2823 (int)Rows - 1, vim_strsize(s), attr); 2824 } 2825 2826 /* 2827 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 2828 * exmode_active. 2829 */ 2830 void 2831 repeat_message() 2832 { 2833 if (State == ASKMORE) 2834 { 2835 msg_moremsg(TRUE); /* display --more-- message again */ 2836 msg_row = Rows - 1; 2837 } 2838 #ifdef FEAT_CON_DIALOG 2839 else if (State == CONFIRM) 2840 { 2841 display_confirm_msg(); /* display ":confirm" message again */ 2842 msg_row = Rows - 1; 2843 } 2844 #endif 2845 else if (State == EXTERNCMD) 2846 { 2847 windgoto(msg_row, msg_col); /* put cursor back */ 2848 } 2849 else if (State == HITRETURN || State == SETWSIZE) 2850 { 2851 hit_return_msg(); 2852 msg_row = Rows - 1; 2853 } 2854 } 2855 2856 /* 2857 * msg_check_screen - check if the screen is initialized. 2858 * Also check msg_row and msg_col, if they are too big it may cause a crash. 2859 * While starting the GUI the terminal codes will be set for the GUI, but the 2860 * output goes to the terminal. Don't use the terminal codes then. 2861 */ 2862 static int 2863 msg_check_screen() 2864 { 2865 if (!full_screen || !screen_valid(FALSE)) 2866 return FALSE; 2867 2868 if (msg_row >= Rows) 2869 msg_row = Rows - 1; 2870 if (msg_col >= Columns) 2871 msg_col = Columns - 1; 2872 return TRUE; 2873 } 2874 2875 /* 2876 * Clear from current message position to end of screen. 2877 * Skip this when ":silent" was used, no need to clear for redirection. 2878 */ 2879 void 2880 msg_clr_eos() 2881 { 2882 if (msg_silent == 0) 2883 msg_clr_eos_force(); 2884 } 2885 2886 /* 2887 * Clear from current message position to end of screen. 2888 * Note: msg_col is not updated, so we remember the end of the message 2889 * for msg_check(). 2890 */ 2891 void 2892 msg_clr_eos_force() 2893 { 2894 if (msg_use_printf()) 2895 { 2896 if (full_screen) /* only when termcap codes are valid */ 2897 { 2898 if (*T_CD) 2899 out_str(T_CD); /* clear to end of display */ 2900 else if (*T_CE) 2901 out_str(T_CE); /* clear to end of line */ 2902 } 2903 } 2904 else 2905 { 2906 #ifdef FEAT_RIGHTLEFT 2907 if (cmdmsg_rl) 2908 { 2909 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 2910 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2911 } 2912 else 2913 #endif 2914 { 2915 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 2916 ' ', ' ', 0); 2917 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2918 } 2919 } 2920 } 2921 2922 /* 2923 * Clear the command line. 2924 */ 2925 void 2926 msg_clr_cmdline() 2927 { 2928 msg_row = cmdline_row; 2929 msg_col = 0; 2930 msg_clr_eos_force(); 2931 } 2932 2933 /* 2934 * end putting a message on the screen 2935 * call wait_return if the message does not fit in the available space 2936 * return TRUE if wait_return not called. 2937 */ 2938 int 2939 msg_end() 2940 { 2941 /* 2942 * if the string is larger than the window, 2943 * or the ruler option is set and we run into it, 2944 * we have to redraw the window. 2945 * Do not do this if we are abandoning the file or editing the command line. 2946 */ 2947 if (!exiting && need_wait_return && !(State & CMDLINE)) 2948 { 2949 wait_return(FALSE); 2950 return FALSE; 2951 } 2952 out_flush(); 2953 return TRUE; 2954 } 2955 2956 /* 2957 * If the written message runs into the shown command or ruler, we have to 2958 * wait for hit-return and redraw the window later. 2959 */ 2960 void 2961 msg_check() 2962 { 2963 if (msg_row == Rows - 1 && msg_col >= sc_col) 2964 { 2965 need_wait_return = TRUE; 2966 redraw_cmdline = TRUE; 2967 } 2968 } 2969 2970 /* 2971 * May write a string to the redirection file. 2972 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 2973 */ 2974 static void 2975 redir_write(str, maxlen) 2976 char_u *str; 2977 int maxlen; 2978 { 2979 char_u *s = str; 2980 static int cur_col = 0; 2981 2982 /* Don't do anything for displaying prompts and the like. */ 2983 if (redir_off) 2984 return; 2985 2986 /* 2987 * If 'verbosefile' is set write message in that file. 2988 * Must come before the rest because of updating "msg_col". 2989 */ 2990 if (*p_vfile != NUL) 2991 verbose_write(s, maxlen); 2992 2993 if (redir_fd != NULL 2994 #ifdef FEAT_EVAL 2995 || redir_reg || redir_vname 2996 #endif 2997 ) 2998 { 2999 /* If the string doesn't start with CR or NL, go to msg_col */ 3000 if (*s != '\n' && *s != '\r') 3001 { 3002 while (cur_col < msg_col) 3003 { 3004 #ifdef FEAT_EVAL 3005 if (redir_reg) 3006 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 3007 else if (redir_vname) 3008 var_redir_str((char_u *)" ", -1); 3009 else if (redir_fd) 3010 #endif 3011 fputs(" ", redir_fd); 3012 ++cur_col; 3013 } 3014 } 3015 3016 #ifdef FEAT_EVAL 3017 if (redir_reg) 3018 write_reg_contents(redir_reg, s, maxlen, TRUE); 3019 if (redir_vname) 3020 var_redir_str(s, maxlen); 3021 #endif 3022 3023 /* Adjust the current column */ 3024 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3025 { 3026 #ifdef FEAT_EVAL 3027 if (!redir_reg && !redir_vname && redir_fd != NULL) 3028 #endif 3029 putc(*s, redir_fd); 3030 if (*s == '\r' || *s == '\n') 3031 cur_col = 0; 3032 else if (*s == '\t') 3033 cur_col += (8 - cur_col % 8); 3034 else 3035 ++cur_col; 3036 ++s; 3037 } 3038 3039 if (msg_silent != 0) /* should update msg_col */ 3040 msg_col = cur_col; 3041 } 3042 } 3043 3044 /* 3045 * Before giving verbose message. 3046 * Must always be called paired with verbose_leave()! 3047 */ 3048 void 3049 verbose_enter() 3050 { 3051 if (*p_vfile != NUL) 3052 ++msg_silent; 3053 } 3054 3055 /* 3056 * After giving verbose message. 3057 * Must always be called paired with verbose_enter()! 3058 */ 3059 void 3060 verbose_leave() 3061 { 3062 if (*p_vfile != NUL) 3063 if (--msg_silent < 0) 3064 msg_silent = 0; 3065 } 3066 3067 /* 3068 * Like verbose_enter() and set msg_scroll when displaying the message. 3069 */ 3070 void 3071 verbose_enter_scroll() 3072 { 3073 if (*p_vfile != NUL) 3074 ++msg_silent; 3075 else 3076 /* always scroll up, don't overwrite */ 3077 msg_scroll = TRUE; 3078 } 3079 3080 /* 3081 * Like verbose_leave() and set cmdline_row when displaying the message. 3082 */ 3083 void 3084 verbose_leave_scroll() 3085 { 3086 if (*p_vfile != NUL) 3087 { 3088 if (--msg_silent < 0) 3089 msg_silent = 0; 3090 } 3091 else 3092 cmdline_row = msg_row; 3093 } 3094 3095 static FILE *verbose_fd = NULL; 3096 static int verbose_did_open = FALSE; 3097 3098 /* 3099 * Called when 'verbosefile' is set: stop writing to the file. 3100 */ 3101 void 3102 verbose_stop() 3103 { 3104 if (verbose_fd != NULL) 3105 { 3106 fclose(verbose_fd); 3107 verbose_fd = NULL; 3108 } 3109 verbose_did_open = FALSE; 3110 } 3111 3112 /* 3113 * Open the file 'verbosefile'. 3114 * Return FAIL or OK. 3115 */ 3116 int 3117 verbose_open() 3118 { 3119 if (verbose_fd == NULL && !verbose_did_open) 3120 { 3121 /* Only give the error message once. */ 3122 verbose_did_open = TRUE; 3123 3124 verbose_fd = mch_fopen((char *)p_vfile, "a"); 3125 if (verbose_fd == NULL) 3126 { 3127 EMSG2(_(e_notopen), p_vfile); 3128 return FAIL; 3129 } 3130 } 3131 return OK; 3132 } 3133 3134 /* 3135 * Write a string to 'verbosefile'. 3136 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3137 */ 3138 static void 3139 verbose_write(str, maxlen) 3140 char_u *str; 3141 int maxlen; 3142 { 3143 char_u *s = str; 3144 static int cur_col = 0; 3145 3146 /* Open the file when called the first time. */ 3147 if (verbose_fd == NULL) 3148 verbose_open(); 3149 3150 if (verbose_fd != NULL) 3151 { 3152 /* If the string doesn't start with CR or NL, go to msg_col */ 3153 if (*s != '\n' && *s != '\r') 3154 { 3155 while (cur_col < msg_col) 3156 { 3157 fputs(" ", verbose_fd); 3158 ++cur_col; 3159 } 3160 } 3161 3162 /* Adjust the current column */ 3163 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3164 { 3165 putc(*s, verbose_fd); 3166 if (*s == '\r' || *s == '\n') 3167 cur_col = 0; 3168 else if (*s == '\t') 3169 cur_col += (8 - cur_col % 8); 3170 else 3171 ++cur_col; 3172 ++s; 3173 } 3174 } 3175 } 3176 3177 /* 3178 * Give a warning message (for searching). 3179 * Use 'w' highlighting and may repeat the message after redrawing 3180 */ 3181 void 3182 give_warning(message, hl) 3183 char_u *message; 3184 int hl; 3185 { 3186 /* Don't do this for ":silent". */ 3187 if (msg_silent != 0) 3188 return; 3189 3190 /* Don't want a hit-enter prompt here. */ 3191 ++no_wait_return; 3192 3193 #ifdef FEAT_EVAL 3194 set_vim_var_string(VV_WARNINGMSG, message, -1); 3195 #endif 3196 vim_free(keep_msg); 3197 keep_msg = NULL; 3198 if (hl) 3199 keep_msg_attr = hl_attr(HLF_W); 3200 else 3201 keep_msg_attr = 0; 3202 if (msg_attr(message, keep_msg_attr) && msg_scrolled == 0) 3203 set_keep_msg(message, keep_msg_attr); 3204 msg_didout = FALSE; /* overwrite this message */ 3205 msg_nowait = TRUE; /* don't wait for this message */ 3206 msg_col = 0; 3207 3208 --no_wait_return; 3209 } 3210 3211 /* 3212 * Advance msg cursor to column "col". 3213 */ 3214 void 3215 msg_advance(col) 3216 int col; 3217 { 3218 if (msg_silent != 0) /* nothing to advance to */ 3219 { 3220 msg_col = col; /* for redirection, may fill it up later */ 3221 return; 3222 } 3223 if (col >= Columns) /* not enough room */ 3224 col = Columns - 1; 3225 #ifdef FEAT_RIGHTLEFT 3226 if (cmdmsg_rl) 3227 while (msg_col > Columns - col) 3228 msg_putchar(' '); 3229 else 3230 #endif 3231 while (msg_col < col) 3232 msg_putchar(' '); 3233 } 3234 3235 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3236 /* 3237 * Used for "confirm()" function, and the :confirm command prefix. 3238 * Versions which haven't got flexible dialogs yet, and console 3239 * versions, get this generic handler which uses the command line. 3240 * 3241 * type = one of: 3242 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3243 * title = title string (can be NULL for default) 3244 * (neither used in console dialogs at the moment) 3245 * 3246 * Format of the "buttons" string: 3247 * "Button1Name\nButton2Name\nButton3Name" 3248 * The first button should normally be the default/accept 3249 * The second button should be the 'Cancel' button 3250 * Other buttons- use your imagination! 3251 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3252 * different letter. 3253 */ 3254 /* ARGSUSED */ 3255 int 3256 do_dialog(type, title, message, buttons, dfltbutton, textfield) 3257 int type; 3258 char_u *title; 3259 char_u *message; 3260 char_u *buttons; 3261 int dfltbutton; 3262 char_u *textfield; /* IObuff for inputdialog(), NULL otherwise */ 3263 { 3264 int oldState; 3265 int retval = 0; 3266 char_u *hotkeys; 3267 int c; 3268 int i; 3269 3270 #ifndef NO_CONSOLE 3271 /* Don't output anything in silent mode ("ex -s") */ 3272 if (silent_mode) 3273 return dfltbutton; /* return default option */ 3274 #endif 3275 3276 #ifdef FEAT_GUI_DIALOG 3277 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3278 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3279 { 3280 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3281 textfield); 3282 msg_end_prompt(); 3283 3284 /* Flush output to avoid that further messages and redrawing is done 3285 * in the wrong order. */ 3286 out_flush(); 3287 gui_mch_update(); 3288 3289 return c; 3290 } 3291 #endif 3292 3293 oldState = State; 3294 State = CONFIRM; 3295 #ifdef FEAT_MOUSE 3296 setmouse(); 3297 #endif 3298 3299 /* 3300 * Since we wait for a keypress, don't make the 3301 * user press RETURN as well afterwards. 3302 */ 3303 ++no_wait_return; 3304 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3305 3306 if (hotkeys != NULL) 3307 { 3308 for (;;) 3309 { 3310 /* Get a typed character directly from the user. */ 3311 c = get_keystroke(); 3312 switch (c) 3313 { 3314 case CAR: /* User accepts default option */ 3315 case NL: 3316 retval = dfltbutton; 3317 break; 3318 case Ctrl_C: /* User aborts/cancels */ 3319 case ESC: 3320 retval = 0; 3321 break; 3322 default: /* Could be a hotkey? */ 3323 if (c < 0) /* special keys are ignored here */ 3324 continue; 3325 /* Make the character lowercase, as chars in "hotkeys" are. */ 3326 c = MB_TOLOWER(c); 3327 retval = 1; 3328 for (i = 0; hotkeys[i]; ++i) 3329 { 3330 #ifdef FEAT_MBYTE 3331 if (has_mbyte) 3332 { 3333 if ((*mb_ptr2char)(hotkeys + i) == c) 3334 break; 3335 i += (*mb_ptr2len)(hotkeys + i) - 1; 3336 } 3337 else 3338 #endif 3339 if (hotkeys[i] == c) 3340 break; 3341 ++retval; 3342 } 3343 if (hotkeys[i]) 3344 break; 3345 /* No hotkey match, so keep waiting */ 3346 continue; 3347 } 3348 break; 3349 } 3350 3351 vim_free(hotkeys); 3352 } 3353 3354 State = oldState; 3355 #ifdef FEAT_MOUSE 3356 setmouse(); 3357 #endif 3358 --no_wait_return; 3359 msg_end_prompt(); 3360 3361 return retval; 3362 } 3363 3364 static int copy_char __ARGS((char_u *from, char_u *to, int lowercase)); 3365 3366 /* 3367 * Copy one character from "*from" to "*to", taking care of multi-byte 3368 * characters. Return the length of the character in bytes. 3369 */ 3370 static int 3371 copy_char(from, to, lowercase) 3372 char_u *from; 3373 char_u *to; 3374 int lowercase; /* make character lower case */ 3375 { 3376 #ifdef FEAT_MBYTE 3377 int len; 3378 int c; 3379 3380 if (has_mbyte) 3381 { 3382 if (lowercase) 3383 { 3384 c = MB_TOLOWER((*mb_ptr2char)(from)); 3385 return (*mb_char2bytes)(c, to); 3386 } 3387 else 3388 { 3389 len = (*mb_ptr2len)(from); 3390 mch_memmove(to, from, (size_t)len); 3391 return len; 3392 } 3393 } 3394 else 3395 #endif 3396 { 3397 if (lowercase) 3398 *to = (char_u)TOLOWER_LOC(*from); 3399 else 3400 *to = *from; 3401 return 1; 3402 } 3403 } 3404 3405 /* 3406 * Format the dialog string, and display it at the bottom of 3407 * the screen. Return a string of hotkey chars (if defined) for 3408 * each 'button'. If a button has no hotkey defined, the first character of 3409 * the button is used. 3410 * The hotkeys can be multi-byte characters, but without combining chars. 3411 * 3412 * Returns an allocated string with hotkeys, or NULL for error. 3413 */ 3414 static char_u * 3415 msg_show_console_dialog(message, buttons, dfltbutton) 3416 char_u *message; 3417 char_u *buttons; 3418 int dfltbutton; 3419 { 3420 int len = 0; 3421 #ifdef FEAT_MBYTE 3422 # define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3423 #else 3424 # define HOTK_LEN 1 3425 #endif 3426 int lenhotkey = HOTK_LEN; /* count first button */ 3427 char_u *hotk = NULL; 3428 char_u *msgp = NULL; 3429 char_u *hotkp = NULL; 3430 char_u *r; 3431 int copy; 3432 #define HAS_HOTKEY_LEN 30 3433 char_u has_hotkey[HAS_HOTKEY_LEN]; 3434 int first_hotkey = FALSE; /* first char of button is hotkey */ 3435 int idx; 3436 3437 has_hotkey[0] = FALSE; 3438 3439 /* 3440 * First loop: compute the size of memory to allocate. 3441 * Second loop: copy to the allocated memory. 3442 */ 3443 for (copy = 0; copy <= 1; ++copy) 3444 { 3445 r = buttons; 3446 idx = 0; 3447 while (*r) 3448 { 3449 if (*r == DLG_BUTTON_SEP) 3450 { 3451 if (copy) 3452 { 3453 *msgp++ = ','; 3454 *msgp++ = ' '; /* '\n' -> ', ' */ 3455 3456 /* advance to next hotkey and set default hotkey */ 3457 #ifdef FEAT_MBYTE 3458 if (has_mbyte) 3459 hotkp += (*mb_ptr2len)(hotkp); 3460 else 3461 #endif 3462 ++hotkp; 3463 (void)copy_char(r + 1, hotkp, TRUE); 3464 if (dfltbutton) 3465 --dfltbutton; 3466 3467 /* If no hotkey is specified first char is used. */ 3468 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3469 first_hotkey = TRUE; 3470 } 3471 else 3472 { 3473 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3474 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3475 if (idx < HAS_HOTKEY_LEN - 1) 3476 has_hotkey[++idx] = FALSE; 3477 } 3478 } 3479 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3480 { 3481 if (*r == DLG_HOTKEY_CHAR) 3482 ++r; 3483 first_hotkey = FALSE; 3484 if (copy) 3485 { 3486 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3487 *msgp++ = *r; 3488 else 3489 { 3490 /* '&a' -> '[a]' */ 3491 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3492 msgp += copy_char(r, msgp, FALSE); 3493 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3494 3495 /* redefine hotkey */ 3496 (void)copy_char(r, hotkp, TRUE); 3497 } 3498 } 3499 else 3500 { 3501 ++len; /* '&a' -> '[a]' */ 3502 if (idx < HAS_HOTKEY_LEN - 1) 3503 has_hotkey[idx] = TRUE; 3504 } 3505 } 3506 else 3507 { 3508 /* everything else copy literally */ 3509 if (copy) 3510 msgp += copy_char(r, msgp, FALSE); 3511 } 3512 3513 /* advance to the next character */ 3514 mb_ptr_adv(r); 3515 } 3516 3517 if (copy) 3518 { 3519 *msgp++ = ':'; 3520 *msgp++ = ' '; 3521 *msgp = NUL; 3522 mb_ptr_adv(hotkp); 3523 *hotkp = NUL; 3524 } 3525 else 3526 { 3527 len += (int)(STRLEN(message) 3528 + 2 /* for the NL's */ 3529 + STRLEN(buttons) 3530 + 3); /* for the ": " and NUL */ 3531 lenhotkey++; /* for the NUL */ 3532 3533 /* If no hotkey is specified first char is used. */ 3534 if (!has_hotkey[0]) 3535 { 3536 first_hotkey = TRUE; 3537 len += 2; /* "x" -> "[x]" */ 3538 } 3539 3540 /* 3541 * Now allocate and load the strings 3542 */ 3543 vim_free(confirm_msg); 3544 confirm_msg = alloc(len); 3545 if (confirm_msg == NULL) 3546 return NULL; 3547 *confirm_msg = NUL; 3548 hotk = alloc(lenhotkey); 3549 if (hotk == NULL) 3550 return NULL; 3551 3552 *confirm_msg = '\n'; 3553 STRCPY(confirm_msg + 1, message); 3554 3555 msgp = confirm_msg + 1 + STRLEN(message); 3556 hotkp = hotk; 3557 3558 /* define first default hotkey */ 3559 (void)copy_char(buttons, hotkp, TRUE); 3560 3561 /* Remember where the choices start, displaying starts here when 3562 * "hotkp" typed at the more prompt. */ 3563 confirm_msg_tail = msgp; 3564 *msgp++ = '\n'; 3565 } 3566 } 3567 3568 display_confirm_msg(); 3569 return hotk; 3570 } 3571 3572 /* 3573 * Display the ":confirm" message. Also called when screen resized. 3574 */ 3575 void 3576 display_confirm_msg() 3577 { 3578 /* avoid that 'q' at the more prompt truncates the message here */ 3579 ++confirm_msg_used; 3580 if (confirm_msg != NULL) 3581 msg_puts_attr(confirm_msg, hl_attr(HLF_M)); 3582 --confirm_msg_used; 3583 } 3584 3585 #endif /* FEAT_CON_DIALOG */ 3586 3587 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3588 3589 int 3590 vim_dialog_yesno(type, title, message, dflt) 3591 int type; 3592 char_u *title; 3593 char_u *message; 3594 int dflt; 3595 { 3596 if (do_dialog(type, 3597 title == NULL ? (char_u *)_("Question") : title, 3598 message, 3599 (char_u *)_("&Yes\n&No"), dflt, NULL) == 1) 3600 return VIM_YES; 3601 return VIM_NO; 3602 } 3603 3604 int 3605 vim_dialog_yesnocancel(type, title, message, dflt) 3606 int type; 3607 char_u *title; 3608 char_u *message; 3609 int dflt; 3610 { 3611 switch (do_dialog(type, 3612 title == NULL ? (char_u *)_("Question") : title, 3613 message, 3614 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL)) 3615 { 3616 case 1: return VIM_YES; 3617 case 2: return VIM_NO; 3618 } 3619 return VIM_CANCEL; 3620 } 3621 3622 int 3623 vim_dialog_yesnoallcancel(type, title, message, dflt) 3624 int type; 3625 char_u *title; 3626 char_u *message; 3627 int dflt; 3628 { 3629 switch (do_dialog(type, 3630 title == NULL ? (char_u *)"Question" : title, 3631 message, 3632 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3633 dflt, NULL)) 3634 { 3635 case 1: return VIM_YES; 3636 case 2: return VIM_NO; 3637 case 3: return VIM_ALL; 3638 case 4: return VIM_DISCARDALL; 3639 } 3640 return VIM_CANCEL; 3641 } 3642 3643 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3644 3645 #if defined(FEAT_BROWSE) || defined(PROTO) 3646 /* 3647 * Generic browse function. Calls gui_mch_browse() when possible. 3648 * Later this may pop-up a non-GUI file selector (external command?). 3649 */ 3650 char_u * 3651 do_browse(flags, title, dflt, ext, initdir, filter, buf) 3652 int flags; /* BROWSE_SAVE and BROWSE_DIR */ 3653 char_u *title; /* title for the window */ 3654 char_u *dflt; /* default file name (may include directory) */ 3655 char_u *ext; /* extension added */ 3656 char_u *initdir; /* initial directory, NULL for current dir or 3657 when using path from "dflt" */ 3658 char_u *filter; /* file name filter */ 3659 buf_T *buf; /* buffer to read/write for */ 3660 { 3661 char_u *fname; 3662 static char_u *last_dir = NULL; /* last used directory */ 3663 char_u *tofree = NULL; 3664 int save_browse = cmdmod.browse; 3665 3666 /* Must turn off browse to avoid that autocommands will get the 3667 * flag too! */ 3668 cmdmod.browse = FALSE; 3669 3670 if (title == NULL || *title == NUL) 3671 { 3672 if (flags & BROWSE_DIR) 3673 title = (char_u *)_("Select Directory dialog"); 3674 else if (flags & BROWSE_SAVE) 3675 title = (char_u *)_("Save File dialog"); 3676 else 3677 title = (char_u *)_("Open File dialog"); 3678 } 3679 3680 /* When no directory specified, use default file name, default dir, buffer 3681 * dir, last dir or current dir */ 3682 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 3683 { 3684 if (mch_isdir(dflt)) /* default file name is a directory */ 3685 { 3686 initdir = dflt; 3687 dflt = NULL; 3688 } 3689 else if (gettail(dflt) != dflt) /* default file name includes a path */ 3690 { 3691 tofree = vim_strsave(dflt); 3692 if (tofree != NULL) 3693 { 3694 initdir = tofree; 3695 *gettail(initdir) = NUL; 3696 dflt = gettail(dflt); 3697 } 3698 } 3699 } 3700 3701 if (initdir == NULL || *initdir == NUL) 3702 { 3703 /* When 'browsedir' is a directory, use it */ 3704 if (STRCMP(p_bsdir, "last") != 0 3705 && STRCMP(p_bsdir, "buffer") != 0 3706 && STRCMP(p_bsdir, "current") != 0 3707 && mch_isdir(p_bsdir)) 3708 initdir = p_bsdir; 3709 /* When saving or 'browsedir' is "buffer", use buffer fname */ 3710 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 3711 && buf != NULL && buf->b_ffname != NULL) 3712 { 3713 if (dflt == NULL || *dflt == NUL) 3714 dflt = gettail(curbuf->b_ffname); 3715 tofree = vim_strsave(curbuf->b_ffname); 3716 if (tofree != NULL) 3717 { 3718 initdir = tofree; 3719 *gettail(initdir) = NUL; 3720 } 3721 } 3722 /* When 'browsedir' is "last", use dir from last browse */ 3723 else if (*p_bsdir == 'l') 3724 initdir = last_dir; 3725 /* When 'browsedir is "current", use current directory. This is the 3726 * default already, leave initdir empty. */ 3727 } 3728 3729 # ifdef FEAT_GUI 3730 if (gui.in_use) /* when this changes, also adjust f_has()! */ 3731 { 3732 if (filter == NULL 3733 # ifdef FEAT_EVAL 3734 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 3735 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 3736 # endif 3737 ) 3738 filter = BROWSE_FILTER_DEFAULT; 3739 if (flags & BROWSE_DIR) 3740 { 3741 # if defined(HAVE_GTK2) || defined(WIN3264) 3742 /* For systems that have a directory dialog. */ 3743 fname = gui_mch_browsedir(title, initdir); 3744 # else 3745 /* Generic solution for selecting a directory: select a file and 3746 * remove the file name. */ 3747 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 3748 # endif 3749 # if !defined(HAVE_GTK2) 3750 /* Win32 adds a dummy file name, others return an arbitrary file 3751 * name. GTK+ 2 returns only the directory, */ 3752 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 3753 { 3754 /* Remove the file name. */ 3755 char_u *tail = gettail_sep(fname); 3756 3757 if (tail == fname) 3758 *tail++ = '.'; /* use current dir */ 3759 *tail = NUL; 3760 } 3761 # endif 3762 } 3763 else 3764 fname = gui_mch_browse(flags & BROWSE_SAVE, 3765 title, dflt, ext, initdir, filter); 3766 3767 /* We hang around in the dialog for a while, the user might do some 3768 * things to our files. The Win32 dialog allows deleting or renaming 3769 * a file, check timestamps. */ 3770 need_check_timestamps = TRUE; 3771 did_check_timestamps = FALSE; 3772 } 3773 else 3774 # endif 3775 { 3776 /* TODO: non-GUI file selector here */ 3777 EMSG(_("E338: Sorry, no file browser in console mode")); 3778 fname = NULL; 3779 } 3780 3781 /* keep the directory for next time */ 3782 if (fname != NULL) 3783 { 3784 vim_free(last_dir); 3785 last_dir = vim_strsave(fname); 3786 if (last_dir != NULL && !(flags & BROWSE_DIR)) 3787 { 3788 *gettail(last_dir) = NUL; 3789 if (*last_dir == NUL) 3790 { 3791 /* filename only returned, must be in current dir */ 3792 vim_free(last_dir); 3793 last_dir = alloc(MAXPATHL); 3794 if (last_dir != NULL) 3795 mch_dirname(last_dir, MAXPATHL); 3796 } 3797 } 3798 } 3799 3800 vim_free(tofree); 3801 cmdmod.browse = save_browse; 3802 3803 return fname; 3804 } 3805 #endif 3806 3807 #if defined(HAVE_STDARG_H) && defined(FEAT_EVAL) 3808 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 3809 3810 static long tv_nr __ARGS((typval_T *tvs, int *idxp)); 3811 static char *tv_str __ARGS((typval_T *tvs, int *idxp)); 3812 3813 /* 3814 * Get number argument from "idxp" entry in "tvs". First entry is 1. 3815 */ 3816 static long 3817 tv_nr(tvs, idxp) 3818 typval_T *tvs; 3819 int *idxp; 3820 { 3821 int idx = *idxp - 1; 3822 long n = 0; 3823 int err = FALSE; 3824 3825 if (tvs[idx].v_type == VAR_UNKNOWN) 3826 EMSG(_(e_printf)); 3827 else 3828 { 3829 ++*idxp; 3830 n = get_tv_number_chk(&tvs[idx], &err); 3831 if (err) 3832 n = 0; 3833 } 3834 return n; 3835 } 3836 3837 /* 3838 * Get string argument from "idxp" entry in "tvs". First entry is 1. 3839 * Returns NULL for an error. 3840 */ 3841 static char * 3842 tv_str(tvs, idxp) 3843 typval_T *tvs; 3844 int *idxp; 3845 { 3846 int idx = *idxp - 1; 3847 char *s = NULL; 3848 3849 if (tvs[idx].v_type == VAR_UNKNOWN) 3850 EMSG(_(e_printf)); 3851 else 3852 { 3853 ++*idxp; 3854 s = (char *)get_tv_string_chk(&tvs[idx]); 3855 } 3856 return s; 3857 } 3858 #endif 3859 3860 /* 3861 * This code was included to provide a portable vsnprintf() and snprintf(). 3862 * Some systems may provide their own, but we always use this one for 3863 * consistency. 3864 * 3865 * This code is based on snprintf.c - a portable implementation of snprintf 3866 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 3867 * Included with permission. It was heavily modified to fit in Vim. 3868 * The original code, including useful comments, can be found here: 3869 * http://www.ijs.si/software/snprintf/ 3870 * 3871 * This snprintf() only supports the following conversion specifiers: 3872 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 3873 * with flags: '-', '+', ' ', '0' and '#'. 3874 * An asterisk is supported for field width as well as precision. 3875 * 3876 * Length modifiers 'h' (short int) and 'l' (long int) are supported. 3877 * 'll' (long long int) is not supported. 3878 * 3879 * The locale is not used, the string is used as a byte string. This is only 3880 * relevant for double-byte encodings where the second byte may be '%'. 3881 * 3882 * It is permitted for "str_m" to be zero, and it is permitted to specify NULL 3883 * pointer for resulting string argument if "str_m" is zero (as per ISO C99). 3884 * 3885 * The return value is the number of characters which would be generated 3886 * for the given input, excluding the trailing null. If this value 3887 * is greater or equal to "str_m", not all characters from the result 3888 * have been stored in str, output bytes beyond the ("str_m"-1) -th character 3889 * are discarded. If "str_m" is greater than zero it is guaranteed 3890 * the resulting string will be null-terminated. 3891 */ 3892 3893 /* 3894 * When va_list is not supported we only define vim_snprintf(). 3895 * 3896 * vim_vsnprintf() can be invoked with either "va_list" or a list of 3897 * "typval_T". When the latter is not used it must be NULL. 3898 */ 3899 3900 /* When generating prototypes all of this is skipped, cproto doesn't 3901 * understand this. */ 3902 #ifndef PROTO 3903 # ifdef HAVE_STDARG_H 3904 int 3905 vim_snprintf(char *str, size_t str_m, char *fmt, ...) 3906 { 3907 va_list ap; 3908 int str_l; 3909 3910 va_start(ap, fmt); 3911 str_l = vim_vsnprintf(str, str_m, fmt, ap, NULL); 3912 va_end(ap); 3913 return str_l; 3914 } 3915 3916 int 3917 vim_vsnprintf(str, str_m, fmt, ap, tvs) 3918 # else 3919 /* clumsy way to work around missing va_list */ 3920 # 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) 3921 3922 /* VARARGS */ 3923 int 3924 #ifdef __BORLANDC__ 3925 _RTLENTRYF 3926 #endif 3927 vim_snprintf(str, str_m, fmt, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 3928 # endif 3929 char *str; 3930 size_t str_m; 3931 char *fmt; 3932 # ifdef HAVE_STDARG_H 3933 va_list ap; 3934 typval_T *tvs; 3935 # else 3936 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 3937 # endif 3938 { 3939 size_t str_l = 0; 3940 char *p = fmt; 3941 int arg_idx = 1; 3942 3943 if (p == NULL) 3944 p = ""; 3945 while (*p != NUL) 3946 { 3947 if (*p != '%') 3948 { 3949 char *q = strchr(p + 1, '%'); 3950 size_t n = (q == NULL) ? STRLEN(p) : (q - p); 3951 3952 /* Copy up to the next '%' or NUL without any changes. */ 3953 if (str_l < str_m) 3954 { 3955 size_t avail = str_m - str_l; 3956 3957 mch_memmove(str + str_l, p, n > avail ? avail : n); 3958 } 3959 p += n; 3960 str_l += n; 3961 } 3962 else 3963 { 3964 size_t min_field_width = 0, precision = 0; 3965 int zero_padding = 0, precision_specified = 0, justify_left = 0; 3966 int alternate_form = 0, force_sign = 0; 3967 3968 /* If both the ' ' and '+' flags appear, the ' ' flag should be 3969 * ignored. */ 3970 int space_for_positive = 1; 3971 3972 /* allowed values: \0, h, l, L */ 3973 char length_modifier = '\0'; 3974 3975 /* temporary buffer for simple numeric->string conversion */ 3976 char tmp[32]; 3977 3978 /* string address in case of string argument */ 3979 char *str_arg; 3980 3981 /* natural field width of arg without padding and sign */ 3982 size_t str_arg_l; 3983 3984 /* unsigned char argument value - only defined for c conversion. 3985 * N.B. standard explicitly states the char argument for the c 3986 * conversion is unsigned */ 3987 unsigned char uchar_arg; 3988 3989 /* number of zeros to be inserted for numeric conversions as 3990 * required by the precision or minimal field width */ 3991 size_t number_of_zeros_to_pad = 0; 3992 3993 /* index into tmp where zero padding is to be inserted */ 3994 size_t zero_padding_insertion_ind = 0; 3995 3996 /* current conversion specifier character */ 3997 char fmt_spec = '\0'; 3998 3999 str_arg = NULL; 4000 p++; /* skip '%' */ 4001 4002 /* parse flags */ 4003 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 4004 || *p == '#' || *p == '\'') 4005 { 4006 switch (*p) 4007 { 4008 case '0': zero_padding = 1; break; 4009 case '-': justify_left = 1; break; 4010 case '+': force_sign = 1; space_for_positive = 0; break; 4011 case ' ': force_sign = 1; 4012 /* If both the ' ' and '+' flags appear, the ' ' 4013 * flag should be ignored */ 4014 break; 4015 case '#': alternate_form = 1; break; 4016 case '\'': break; 4017 } 4018 p++; 4019 } 4020 /* If the '0' and '-' flags both appear, the '0' flag should be 4021 * ignored. */ 4022 4023 /* parse field width */ 4024 if (*p == '*') 4025 { 4026 int j; 4027 4028 p++; 4029 j = 4030 #ifndef HAVE_STDARG_H 4031 get_a_arg(arg_idx); 4032 #else 4033 # if defined(FEAT_EVAL) 4034 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4035 # endif 4036 va_arg(ap, int); 4037 #endif 4038 if (j >= 0) 4039 min_field_width = j; 4040 else 4041 { 4042 min_field_width = -j; 4043 justify_left = 1; 4044 } 4045 } 4046 else if (VIM_ISDIGIT((int)(*p))) 4047 { 4048 /* size_t could be wider than unsigned int; make sure we treat 4049 * argument like common implementations do */ 4050 unsigned int uj = *p++ - '0'; 4051 4052 while (VIM_ISDIGIT((int)(*p))) 4053 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4054 min_field_width = uj; 4055 } 4056 4057 /* parse precision */ 4058 if (*p == '.') 4059 { 4060 p++; 4061 precision_specified = 1; 4062 if (*p == '*') 4063 { 4064 int j; 4065 4066 j = 4067 #ifndef HAVE_STDARG_H 4068 get_a_arg(arg_idx); 4069 #else 4070 # if defined(FEAT_EVAL) 4071 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4072 # endif 4073 va_arg(ap, int); 4074 #endif 4075 p++; 4076 if (j >= 0) 4077 precision = j; 4078 else 4079 { 4080 precision_specified = 0; 4081 precision = 0; 4082 } 4083 } 4084 else if (VIM_ISDIGIT((int)(*p))) 4085 { 4086 /* size_t could be wider than unsigned int; make sure we 4087 * treat argument like common implementations do */ 4088 unsigned int uj = *p++ - '0'; 4089 4090 while (VIM_ISDIGIT((int)(*p))) 4091 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4092 precision = uj; 4093 } 4094 } 4095 4096 /* parse 'h', 'l' and 'll' length modifiers */ 4097 if (*p == 'h' || *p == 'l') 4098 { 4099 length_modifier = *p; 4100 p++; 4101 if (length_modifier == 'l' && *p == 'l') 4102 { 4103 /* double l = long long */ 4104 length_modifier = 'l'; /* treat it as a single 'l' */ 4105 p++; 4106 } 4107 } 4108 fmt_spec = *p; 4109 4110 /* common synonyms: */ 4111 switch (fmt_spec) 4112 { 4113 case 'i': fmt_spec = 'd'; break; 4114 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4115 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4116 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4117 default: break; 4118 } 4119 4120 /* get parameter value, do initial processing */ 4121 switch (fmt_spec) 4122 { 4123 /* '%' and 'c' behave similar to 's' regarding flags and field 4124 * widths */ 4125 case '%': 4126 case 'c': 4127 case 's': 4128 length_modifier = '\0'; 4129 str_arg_l = 1; 4130 switch (fmt_spec) 4131 { 4132 case '%': 4133 str_arg = p; 4134 break; 4135 4136 case 'c': 4137 { 4138 int j; 4139 4140 j = 4141 #ifndef HAVE_STDARG_H 4142 get_a_arg(arg_idx); 4143 #else 4144 # if defined(FEAT_EVAL) 4145 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4146 # endif 4147 va_arg(ap, int); 4148 #endif 4149 /* standard demands unsigned char */ 4150 uchar_arg = (unsigned char)j; 4151 str_arg = (char *)&uchar_arg; 4152 break; 4153 } 4154 4155 case 's': 4156 str_arg = 4157 #ifndef HAVE_STDARG_H 4158 (char *)get_a_arg(arg_idx); 4159 #else 4160 # if defined(FEAT_EVAL) 4161 tvs != NULL ? tv_str(tvs, &arg_idx) : 4162 # endif 4163 va_arg(ap, char *); 4164 #endif 4165 if (str_arg == NULL) 4166 { 4167 str_arg = "[NULL]"; 4168 str_arg_l = 6; 4169 } 4170 /* make sure not to address string beyond the specified 4171 * precision !!! */ 4172 else if (!precision_specified) 4173 str_arg_l = strlen(str_arg); 4174 /* truncate string if necessary as requested by precision */ 4175 else if (precision == 0) 4176 str_arg_l = 0; 4177 else 4178 { 4179 /* Don't put the #if inside memchr(), it can be a 4180 * macro. */ 4181 #if SIZEOF_INT <= 2 4182 char *q = memchr(str_arg, '\0', precision); 4183 #else 4184 /* memchr on HP does not like n > 2^31 !!! */ 4185 char *q = memchr(str_arg, '\0', 4186 precision <= (size_t)0x7fffffffL ? precision 4187 : (size_t)0x7fffffffL); 4188 #endif 4189 str_arg_l = (q == NULL) ? precision : q - str_arg; 4190 } 4191 break; 4192 4193 default: 4194 break; 4195 } 4196 break; 4197 4198 case 'd': case 'u': case 'o': case 'x': case 'X': case 'p': 4199 { 4200 /* NOTE: the u, o, x, X and p conversion specifiers 4201 * imply the value is unsigned; d implies a signed 4202 * value */ 4203 4204 /* 0 if numeric argument is zero (or if pointer is 4205 * NULL for 'p'), +1 if greater than zero (or nonzero 4206 * for unsigned arguments), -1 if negative (unsigned 4207 * argument is never negative) */ 4208 int arg_sign = 0; 4209 4210 /* only defined for length modifier h, or for no 4211 * length modifiers */ 4212 int int_arg = 0; 4213 unsigned int uint_arg = 0; 4214 4215 /* only defined for length modifier l */ 4216 long int long_arg = 0; 4217 unsigned long int ulong_arg = 0; 4218 4219 /* pointer argument value -only defined for p 4220 * conversion */ 4221 void *ptr_arg = NULL; 4222 4223 if (fmt_spec == 'p') 4224 { 4225 length_modifier = '\0'; 4226 ptr_arg = 4227 #ifndef HAVE_STDARG_H 4228 (void *)get_a_arg(arg_idx); 4229 #else 4230 # if defined(FEAT_EVAL) 4231 tvs != NULL ? (void *)tv_str(tvs, &arg_idx) : 4232 # endif 4233 va_arg(ap, void *); 4234 #endif 4235 if (ptr_arg != NULL) 4236 arg_sign = 1; 4237 } 4238 else if (fmt_spec == 'd') 4239 { 4240 /* signed */ 4241 switch (length_modifier) 4242 { 4243 case '\0': 4244 case 'h': 4245 /* char and short arguments are passed as int. */ 4246 int_arg = 4247 #ifndef HAVE_STDARG_H 4248 get_a_arg(arg_idx); 4249 #else 4250 # if defined(FEAT_EVAL) 4251 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4252 # endif 4253 va_arg(ap, int); 4254 #endif 4255 if (int_arg > 0) 4256 arg_sign = 1; 4257 else if (int_arg < 0) 4258 arg_sign = -1; 4259 break; 4260 case 'l': 4261 long_arg = 4262 #ifndef HAVE_STDARG_H 4263 get_a_arg(arg_idx); 4264 #else 4265 # if defined(FEAT_EVAL) 4266 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4267 # endif 4268 va_arg(ap, long int); 4269 #endif 4270 if (long_arg > 0) 4271 arg_sign = 1; 4272 else if (long_arg < 0) 4273 arg_sign = -1; 4274 break; 4275 } 4276 } 4277 else 4278 { 4279 /* unsigned */ 4280 switch (length_modifier) 4281 { 4282 case '\0': 4283 case 'h': 4284 uint_arg = 4285 #ifndef HAVE_STDARG_H 4286 get_a_arg(arg_idx); 4287 #else 4288 # if defined(FEAT_EVAL) 4289 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4290 # endif 4291 va_arg(ap, unsigned int); 4292 #endif 4293 if (uint_arg != 0) 4294 arg_sign = 1; 4295 break; 4296 case 'l': 4297 ulong_arg = 4298 #ifndef HAVE_STDARG_H 4299 get_a_arg(arg_idx); 4300 #else 4301 # if defined(FEAT_EVAL) 4302 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4303 # endif 4304 va_arg(ap, unsigned long int); 4305 #endif 4306 if (ulong_arg != 0) 4307 arg_sign = 1; 4308 break; 4309 } 4310 } 4311 4312 str_arg = tmp; 4313 str_arg_l = 0; 4314 4315 /* NOTE: 4316 * For d, i, u, o, x, and X conversions, if precision is 4317 * specified, the '0' flag should be ignored. This is so 4318 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4319 * FreeBSD, NetBSD; but not with Perl. 4320 */ 4321 if (precision_specified) 4322 zero_padding = 0; 4323 if (fmt_spec == 'd') 4324 { 4325 if (force_sign && arg_sign >= 0) 4326 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4327 /* leave negative numbers for sprintf to handle, to 4328 * avoid handling tricky cases like (short int)-32768 */ 4329 } 4330 else if (alternate_form) 4331 { 4332 if (arg_sign != 0 4333 && (fmt_spec == 'x' || fmt_spec == 'X') ) 4334 { 4335 tmp[str_arg_l++] = '0'; 4336 tmp[str_arg_l++] = fmt_spec; 4337 } 4338 /* alternate form should have no effect for p 4339 * conversion, but ... */ 4340 } 4341 4342 zero_padding_insertion_ind = str_arg_l; 4343 if (!precision_specified) 4344 precision = 1; /* default precision is 1 */ 4345 if (precision == 0 && arg_sign == 0) 4346 { 4347 /* When zero value is formatted with an explicit 4348 * precision 0, the resulting formatted string is 4349 * empty (d, i, u, o, x, X, p). */ 4350 } 4351 else 4352 { 4353 char f[5]; 4354 int f_l = 0; 4355 4356 /* construct a simple format string for sprintf */ 4357 f[f_l++] = '%'; 4358 if (!length_modifier) 4359 ; 4360 else if (length_modifier == '2') 4361 { 4362 f[f_l++] = 'l'; 4363 f[f_l++] = 'l'; 4364 } 4365 else 4366 f[f_l++] = length_modifier; 4367 f[f_l++] = fmt_spec; 4368 f[f_l++] = '\0'; 4369 4370 if (fmt_spec == 'p') 4371 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4372 else if (fmt_spec == 'd') 4373 { 4374 /* signed */ 4375 switch (length_modifier) 4376 { 4377 case '\0': 4378 case 'h': str_arg_l += sprintf( 4379 tmp + str_arg_l, f, int_arg); 4380 break; 4381 case 'l': str_arg_l += sprintf( 4382 tmp + str_arg_l, f, long_arg); 4383 break; 4384 } 4385 } 4386 else 4387 { 4388 /* unsigned */ 4389 switch (length_modifier) 4390 { 4391 case '\0': 4392 case 'h': str_arg_l += sprintf( 4393 tmp + str_arg_l, f, uint_arg); 4394 break; 4395 case 'l': str_arg_l += sprintf( 4396 tmp + str_arg_l, f, ulong_arg); 4397 break; 4398 } 4399 } 4400 4401 /* include the optional minus sign and possible 4402 * "0x" in the region before the zero padding 4403 * insertion point */ 4404 if (zero_padding_insertion_ind < str_arg_l 4405 && tmp[zero_padding_insertion_ind] == '-') 4406 zero_padding_insertion_ind++; 4407 if (zero_padding_insertion_ind + 1 < str_arg_l 4408 && tmp[zero_padding_insertion_ind] == '0' 4409 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4410 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4411 zero_padding_insertion_ind += 2; 4412 } 4413 4414 { 4415 size_t num_of_digits = str_arg_l 4416 - zero_padding_insertion_ind; 4417 4418 if (alternate_form && fmt_spec == 'o' 4419 /* unless zero is already the first 4420 * character */ 4421 && !(zero_padding_insertion_ind < str_arg_l 4422 && tmp[zero_padding_insertion_ind] == '0')) 4423 { 4424 /* assure leading zero for alternate-form 4425 * octal numbers */ 4426 if (!precision_specified 4427 || precision < num_of_digits + 1) 4428 { 4429 /* precision is increased to force the 4430 * first character to be zero, except if a 4431 * zero value is formatted with an 4432 * explicit precision of zero */ 4433 precision = num_of_digits + 1; 4434 precision_specified = 1; 4435 } 4436 } 4437 /* zero padding to specified precision? */ 4438 if (num_of_digits < precision) 4439 number_of_zeros_to_pad = precision - num_of_digits; 4440 } 4441 /* zero padding to specified minimal field width? */ 4442 if (!justify_left && zero_padding) 4443 { 4444 int n = (int)(min_field_width - (str_arg_l 4445 + number_of_zeros_to_pad)); 4446 if (n > 0) 4447 number_of_zeros_to_pad += n; 4448 } 4449 break; 4450 } 4451 4452 default: 4453 /* unrecognized conversion specifier, keep format string 4454 * as-is */ 4455 zero_padding = 0; /* turn zero padding off for non-numeric 4456 conversion */ 4457 justify_left = 1; 4458 min_field_width = 0; /* reset flags */ 4459 4460 /* discard the unrecognized conversion, just keep * 4461 * the unrecognized conversion character */ 4462 str_arg = p; 4463 str_arg_l = 0; 4464 if (*p != NUL) 4465 str_arg_l++; /* include invalid conversion specifier 4466 unchanged if not at end-of-string */ 4467 break; 4468 } 4469 4470 if (*p != NUL) 4471 p++; /* step over the just processed conversion specifier */ 4472 4473 /* insert padding to the left as requested by min_field_width; 4474 * this does not include the zero padding in case of numerical 4475 * conversions*/ 4476 if (!justify_left) 4477 { 4478 /* left padding with blank or zero */ 4479 int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad)); 4480 4481 if (pn > 0) 4482 { 4483 if (str_l < str_m) 4484 { 4485 size_t avail = str_m - str_l; 4486 4487 vim_memset(str + str_l, zero_padding ? '0' : ' ', 4488 (size_t)pn > avail ? avail : pn); 4489 } 4490 str_l += pn; 4491 } 4492 } 4493 4494 /* zero padding as requested by the precision or by the minimal 4495 * field width for numeric conversions required? */ 4496 if (number_of_zeros_to_pad == 0) 4497 { 4498 /* will not copy first part of numeric right now, * 4499 * force it to be copied later in its entirety */ 4500 zero_padding_insertion_ind = 0; 4501 } 4502 else 4503 { 4504 /* insert first part of numerics (sign or '0x') before zero 4505 * padding */ 4506 int zn = (int)zero_padding_insertion_ind; 4507 4508 if (zn > 0) 4509 { 4510 if (str_l < str_m) 4511 { 4512 size_t avail = str_m - str_l; 4513 4514 mch_memmove(str + str_l, str_arg, 4515 (size_t)zn > avail ? avail : zn); 4516 } 4517 str_l += zn; 4518 } 4519 4520 /* insert zero padding as requested by the precision or min 4521 * field width */ 4522 zn = (int)number_of_zeros_to_pad; 4523 if (zn > 0) 4524 { 4525 if (str_l < str_m) 4526 { 4527 size_t avail = str_m-str_l; 4528 4529 vim_memset(str + str_l, '0', 4530 (size_t)zn > avail ? avail : zn); 4531 } 4532 str_l += zn; 4533 } 4534 } 4535 4536 /* insert formatted string 4537 * (or as-is conversion specifier for unknown conversions) */ 4538 { 4539 int sn = (int)(str_arg_l - zero_padding_insertion_ind); 4540 4541 if (sn > 0) 4542 { 4543 if (str_l < str_m) 4544 { 4545 size_t avail = str_m - str_l; 4546 4547 mch_memmove(str + str_l, 4548 str_arg + zero_padding_insertion_ind, 4549 (size_t)sn > avail ? avail : sn); 4550 } 4551 str_l += sn; 4552 } 4553 } 4554 4555 /* insert right padding */ 4556 if (justify_left) 4557 { 4558 /* right blank padding to the field width */ 4559 int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad)); 4560 4561 if (pn > 0) 4562 { 4563 if (str_l < str_m) 4564 { 4565 size_t avail = str_m - str_l; 4566 4567 vim_memset(str + str_l, ' ', 4568 (size_t)pn > avail ? avail : pn); 4569 } 4570 str_l += pn; 4571 } 4572 } 4573 } 4574 } 4575 4576 if (str_m > 0) 4577 { 4578 /* make sure the string is nul-terminated even at the expense of 4579 * overwriting the last character (shouldn't happen, but just in case) 4580 * */ 4581 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 4582 } 4583 4584 #ifdef HAVE_STDARG_H 4585 if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 4586 EMSG(_("E767: Too many arguments to printf()")); 4587 #endif 4588 4589 /* Return the number of characters formatted (excluding trailing nul 4590 * character), that is, the number of characters that would have been 4591 * written to the buffer if it were large enough. */ 4592 return (int)str_l; 4593 } 4594 4595 #endif /* PROTO */ 4596