1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * message.c: functions for displaying messages on the command line 12 */ 13 14 #define MESSAGE_FILE /* don't include prototype for smsg() */ 15 16 #include "vim.h" 17 18 static int other_sourcing_name __ARGS((void)); 19 static char_u *get_emsg_source __ARGS((void)); 20 static char_u *get_emsg_lnum __ARGS((void)); 21 static void add_msg_hist __ARGS((char_u *s, int len, int attr)); 22 static void hit_return_msg __ARGS((void)); 23 static void msg_home_replace_attr __ARGS((char_u *fname, int attr)); 24 #ifdef FEAT_MBYTE 25 static char_u *screen_puts_mbyte __ARGS((char_u *s, int l, int attr)); 26 #endif 27 static void msg_puts_attr_len __ARGS((char_u *str, int maxlen, int attr)); 28 static void msg_puts_display __ARGS((char_u *str, int maxlen, int attr, int recurse)); 29 static void msg_scroll_up __ARGS((void)); 30 static void inc_msg_scrolled __ARGS((void)); 31 static void store_sb_text __ARGS((char_u **sb_str, char_u *s, int attr, int *sb_col, int finish)); 32 static void t_puts __ARGS((int *t_col, char_u *t_s, char_u *s, int attr)); 33 static void msg_puts_printf __ARGS((char_u *str, int maxlen)); 34 static int do_more_prompt __ARGS((int typed_char)); 35 static void msg_screen_putchar __ARGS((int c, int attr)); 36 static int msg_check_screen __ARGS((void)); 37 static void redir_write __ARGS((char_u *s, int maxlen)); 38 static void verbose_write __ARGS((char_u *s, int maxlen)); 39 #ifdef FEAT_CON_DIALOG 40 static char_u *msg_show_console_dialog __ARGS((char_u *message, char_u *buttons, int dfltbutton)); 41 static int confirm_msg_used = FALSE; /* displaying confirm_msg */ 42 static char_u *confirm_msg = NULL; /* ":confirm" message */ 43 static char_u *confirm_msg_tail; /* tail of confirm_msg */ 44 #endif 45 46 struct msg_hist 47 { 48 struct msg_hist *next; 49 char_u *msg; 50 int attr; 51 }; 52 53 static struct msg_hist *first_msg_hist = NULL; 54 static struct msg_hist *last_msg_hist = NULL; 55 static int msg_hist_len = 0; 56 static int msg_hist_off = FALSE; /* don't add messages to history */ 57 58 /* 59 * When writing messages to the screen, there are many different situations. 60 * A number of variables is used to remember the current state: 61 * msg_didany TRUE when messages were written since the last time the 62 * user reacted to a prompt. 63 * Reset: After hitting a key for the hit-return prompt, 64 * hitting <CR> for the command line or input(). 65 * Set: When any message is written to the screen. 66 * msg_didout TRUE when something was written to the current line. 67 * Reset: When advancing to the next line, when the current 68 * text can be overwritten. 69 * Set: When any message is written to the screen. 70 * msg_nowait No extra delay for the last drawn message. 71 * Used in normal_cmd() before the mode message is drawn. 72 * emsg_on_display There was an error message recently. Indicates that there 73 * should be a delay before redrawing. 74 * msg_scroll The next message should not overwrite the current one. 75 * msg_scrolled How many lines the screen has been scrolled (because of 76 * messages). Used in update_screen() to scroll the screen 77 * back. Incremented each time the screen scrolls a line. 78 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 79 * writes something without scrolling should not make 80 * need_wait_return to be set. This is a hack to make ":ts" 81 * work without an extra prompt. 82 * lines_left Number of lines available for messages before the 83 * more-prompt is to be given. 84 * need_wait_return TRUE when the hit-return prompt is needed. 85 * Reset: After giving the hit-return prompt, when the user 86 * has answered some other prompt. 87 * Set: When the ruler or typeahead display is overwritten, 88 * scrolling the screen for some message. 89 * keep_msg Message to be displayed after redrawing the screen, in 90 * main_loop(). 91 * This is an allocated string or NULL when not used. 92 */ 93 94 /* 95 * msg(s) - displays the string 's' on the status line 96 * When terminal not initialized (yet) mch_errmsg(..) is used. 97 * return TRUE if wait_return not called 98 */ 99 int 100 msg(s) 101 char_u *s; 102 { 103 return msg_attr_keep(s, 0, FALSE); 104 } 105 106 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 107 || defined(PROTO) 108 /* 109 * Like msg() but keep it silent when 'verbosefile' is set. 110 */ 111 int 112 verb_msg(s) 113 char_u *s; 114 { 115 int n; 116 117 verbose_enter(); 118 n = msg_attr_keep(s, 0, FALSE); 119 verbose_leave(); 120 121 return n; 122 } 123 #endif 124 125 int 126 msg_attr(s, attr) 127 char_u *s; 128 int attr; 129 { 130 return msg_attr_keep(s, attr, FALSE); 131 } 132 133 int 134 msg_attr_keep(s, attr, keep) 135 char_u *s; 136 int attr; 137 int keep; /* TRUE: set keep_msg if it doesn't scroll */ 138 { 139 static int entered = 0; 140 int retval; 141 char_u *buf = NULL; 142 143 #ifdef FEAT_EVAL 144 if (attr == 0) 145 set_vim_var_string(VV_STATUSMSG, s, -1); 146 #endif 147 148 /* 149 * It is possible that displaying a messages causes a problem (e.g., 150 * when redrawing the window), which causes another message, etc.. To 151 * break this loop, limit the recursiveness to 3 levels. 152 */ 153 if (entered >= 3) 154 return TRUE; 155 ++entered; 156 157 /* Add message to history (unless it's a repeated kept message or a 158 * truncated message) */ 159 if (s != keep_msg 160 || (*s != '<' 161 && last_msg_hist != NULL 162 && last_msg_hist->msg != NULL 163 && STRCMP(s, last_msg_hist->msg))) 164 add_msg_hist(s, -1, attr); 165 166 /* When displaying keep_msg, don't let msg_start() free it, caller must do 167 * that. */ 168 if (s == keep_msg) 169 keep_msg = NULL; 170 171 /* Truncate the message if needed. */ 172 msg_start(); 173 buf = msg_strtrunc(s, FALSE); 174 if (buf != NULL) 175 s = buf; 176 177 msg_outtrans_attr(s, attr); 178 msg_clr_eos(); 179 retval = msg_end(); 180 181 if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1) 182 * Columns + sc_col) 183 { 184 set_keep_msg(s); 185 keep_msg_attr = 0; 186 } 187 188 vim_free(buf); 189 --entered; 190 return retval; 191 } 192 193 /* 194 * Truncate a string such that it can be printed without causing a scroll. 195 * Returns an allocated string or NULL when no truncating is done. 196 */ 197 char_u * 198 msg_strtrunc(s, force) 199 char_u *s; 200 int force; /* always truncate */ 201 { 202 char_u *buf = NULL; 203 int len; 204 int room; 205 206 /* May truncate message to avoid a hit-return prompt */ 207 if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 208 && !exmode_active && msg_silent == 0) || force) 209 { 210 len = vim_strsize(s); 211 if (msg_scrolled != 0) 212 /* Use all the columns. */ 213 room = (int)(Rows - msg_row) * Columns - 1; 214 else 215 /* Use up to 'showcmd' column. */ 216 room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1; 217 if (len > room && room > 0) 218 { 219 #ifdef FEAT_MBYTE 220 if (enc_utf8) 221 /* may have up to 18 bytes per cell (6 per char, up to two 222 * composing chars) */ 223 buf = alloc((room + 2) * 18); 224 else if (enc_dbcs == DBCS_JPNU) 225 /* may have up to 2 bytes per cell for euc-jp */ 226 buf = alloc((room + 2) * 2); 227 else 228 #endif 229 buf = alloc(room + 2); 230 if (buf != NULL) 231 trunc_string(s, buf, room); 232 } 233 } 234 return buf; 235 } 236 237 /* 238 * Truncate a string "s" to "buf" with cell width "room". 239 * "s" and "buf" may be equal. 240 */ 241 void 242 trunc_string(s, buf, room) 243 char_u *s; 244 char_u *buf; 245 int room; 246 { 247 int half; 248 int len; 249 int e; 250 int i; 251 int n; 252 253 room -= 3; 254 half = room / 2; 255 len = 0; 256 257 /* First part: Start of the string. */ 258 for (e = 0; len < half; ++e) 259 { 260 if (s[e] == NUL) 261 { 262 /* text fits without truncating! */ 263 buf[e] = NUL; 264 return; 265 } 266 n = ptr2cells(s + e); 267 if (len + n >= half) 268 break; 269 len += n; 270 buf[e] = s[e]; 271 #ifdef FEAT_MBYTE 272 if (has_mbyte) 273 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 274 { 275 ++e; 276 buf[e] = s[e]; 277 } 278 #endif 279 } 280 281 /* Last part: End of the string. */ 282 i = e; 283 #ifdef FEAT_MBYTE 284 if (enc_dbcs != 0) 285 { 286 /* For DBCS going backwards in a string is slow, but 287 * computing the cell width isn't too slow: go forward 288 * until the rest fits. */ 289 n = vim_strsize(s + i); 290 while (len + n > room) 291 { 292 n -= ptr2cells(s + i); 293 i += (*mb_ptr2len)(s + i); 294 } 295 } 296 else if (enc_utf8) 297 { 298 /* For UTF-8 we can go backwards easily. */ 299 i = (int)STRLEN(s); 300 for (;;) 301 { 302 half = i - (*mb_head_off)(s, s + i - 1) - 1; 303 n = ptr2cells(s + half); 304 if (len + n > room) 305 break; 306 len += n; 307 i = half; 308 } 309 } 310 else 311 #endif 312 { 313 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 314 len += n; 315 } 316 317 /* Set the middle and copy the last part. */ 318 mch_memmove(buf + e, "...", (size_t)3); 319 mch_memmove(buf + e + 3, s + i, STRLEN(s + i) + 1); 320 } 321 322 /* 323 * Automatic prototype generation does not understand this function. 324 * Note: Caller of smgs() and smsg_attr() must check the resulting string is 325 * shorter than IOSIZE!!! 326 */ 327 #ifndef PROTO 328 # ifndef HAVE_STDARG_H 329 330 int 331 #ifdef __BORLANDC__ 332 _RTLENTRYF 333 #endif 334 smsg __ARGS((char_u *, long, long, long, 335 long, long, long, long, long, long, long)); 336 int 337 #ifdef __BORLANDC__ 338 _RTLENTRYF 339 #endif 340 smsg_attr __ARGS((int, char_u *, long, long, long, 341 long, long, long, long, long, long, long)); 342 343 int vim_snprintf __ARGS((char *, size_t, char *, long, long, long, 344 long, long, long, long, long, long, long)); 345 346 /* 347 * smsg(str, arg, ...) is like using sprintf(buf, str, arg, ...) and then 348 * calling msg(buf). 349 * The buffer used is IObuff, the message is truncated at IOSIZE. 350 */ 351 352 /* VARARGS */ 353 int 354 #ifdef __BORLANDC__ 355 _RTLENTRYF 356 #endif 357 smsg(s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 358 char_u *s; 359 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 360 { 361 return smsg_attr(0, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 362 } 363 364 /* VARARGS */ 365 int 366 #ifdef __BORLANDC__ 367 _RTLENTRYF 368 #endif 369 smsg_attr(attr, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 370 int attr; 371 char_u *s; 372 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 373 { 374 vim_snprintf((char *)IObuff, IOSIZE, (char *)s, 375 a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 376 return msg_attr(IObuff, attr); 377 } 378 379 # else /* HAVE_STDARG_H */ 380 381 int vim_snprintf(char *str, size_t str_m, char *fmt, ...); 382 383 int 384 #ifdef __BORLANDC__ 385 _RTLENTRYF 386 #endif 387 smsg(char_u *s, ...) 388 { 389 va_list arglist; 390 391 va_start(arglist, s); 392 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 393 va_end(arglist); 394 return msg(IObuff); 395 } 396 397 int 398 #ifdef __BORLANDC__ 399 _RTLENTRYF 400 #endif 401 smsg_attr(int attr, char_u *s, ...) 402 { 403 va_list arglist; 404 405 va_start(arglist, s); 406 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 407 va_end(arglist); 408 return msg_attr(IObuff, attr); 409 } 410 411 # endif /* HAVE_STDARG_H */ 412 #endif 413 414 /* 415 * Remember the last sourcing name/lnum used in an error message, so that it 416 * isn't printed each time when it didn't change. 417 */ 418 static int last_sourcing_lnum = 0; 419 static char_u *last_sourcing_name = NULL; 420 421 /* 422 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 423 * for the next error message; 424 */ 425 void 426 reset_last_sourcing() 427 { 428 vim_free(last_sourcing_name); 429 last_sourcing_name = NULL; 430 last_sourcing_lnum = 0; 431 } 432 433 /* 434 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 435 */ 436 static int 437 other_sourcing_name() 438 { 439 if (sourcing_name != NULL) 440 { 441 if (last_sourcing_name != NULL) 442 return STRCMP(sourcing_name, last_sourcing_name) != 0; 443 return TRUE; 444 } 445 return FALSE; 446 } 447 448 /* 449 * Get the message about the source, as used for an error message. 450 * Returns an allocated string with room for one more character. 451 * Returns NULL when no message is to be given. 452 */ 453 static char_u * 454 get_emsg_source() 455 { 456 char_u *Buf, *p; 457 458 if (sourcing_name != NULL && other_sourcing_name()) 459 { 460 p = (char_u *)_("Error detected while processing %s:"); 461 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 462 if (Buf != NULL) 463 sprintf((char *)Buf, (char *)p, sourcing_name); 464 return Buf; 465 } 466 return NULL; 467 } 468 469 /* 470 * Get the message about the source lnum, as used for an error message. 471 * Returns an allocated string with room for one more character. 472 * Returns NULL when no message is to be given. 473 */ 474 static char_u * 475 get_emsg_lnum() 476 { 477 char_u *Buf, *p; 478 479 /* lnum is 0 when executing a command from the command line 480 * argument, we don't want a line number then */ 481 if (sourcing_name != NULL 482 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 483 && sourcing_lnum != 0) 484 { 485 p = (char_u *)_("line %4ld:"); 486 Buf = alloc((unsigned)(STRLEN(p) + 20)); 487 if (Buf != NULL) 488 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 489 return Buf; 490 } 491 return NULL; 492 } 493 494 /* 495 * Display name and line number for the source of an error. 496 * Remember the file name and line number, so that for the next error the info 497 * is only displayed if it changed. 498 */ 499 void 500 msg_source(attr) 501 int attr; 502 { 503 char_u *p; 504 505 ++no_wait_return; 506 p = get_emsg_source(); 507 if (p != NULL) 508 { 509 msg_attr(p, attr); 510 vim_free(p); 511 } 512 p = get_emsg_lnum(); 513 if (p != NULL) 514 { 515 msg_attr(p, hl_attr(HLF_N)); 516 vim_free(p); 517 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 518 } 519 520 /* remember the last sourcing name printed, also when it's empty */ 521 if (sourcing_name == NULL || other_sourcing_name()) 522 { 523 vim_free(last_sourcing_name); 524 if (sourcing_name == NULL) 525 last_sourcing_name = NULL; 526 else 527 last_sourcing_name = vim_strsave(sourcing_name); 528 } 529 --no_wait_return; 530 } 531 532 /* 533 * emsg() - display an error message 534 * 535 * Rings the bell, if appropriate, and calls message() to do the real work 536 * When terminal not initialized (yet) mch_errmsg(..) is used. 537 * 538 * return TRUE if wait_return not called 539 */ 540 int 541 emsg(s) 542 char_u *s; 543 { 544 int attr; 545 char_u *p; 546 #ifdef FEAT_EVAL 547 int ignore = FALSE; 548 int severe; 549 #endif 550 551 called_emsg = TRUE; 552 ex_exitval = 1; 553 554 /* 555 * If "emsg_severe" is TRUE: When an error exception is to be thrown, 556 * prefer this message over previous messages for the same command. 557 */ 558 #ifdef FEAT_EVAL 559 severe = emsg_severe; 560 emsg_severe = FALSE; 561 #endif 562 563 /* 564 * If "emsg_off" is set: no error messages at the moment. 565 * If 'debug' is set: do error message anyway, but without side effects. 566 * If "emsg_skip" is set: never do error messages. 567 */ 568 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL) 569 #ifdef FEAT_EVAL 570 || emsg_skip > 0 571 #endif 572 ) 573 return TRUE; 574 575 if (!emsg_off) 576 { 577 #ifdef FEAT_EVAL 578 /* 579 * Cause a throw of an error exception if appropriate. Don't display 580 * the error message in this case. (If no matching catch clause will 581 * be found, the message will be displayed later on.) "ignore" is set 582 * when the message should be ignored completely (used for the 583 * interrupt message). 584 */ 585 if (cause_errthrow(s, severe, &ignore) == TRUE) 586 { 587 if (!ignore) 588 did_emsg = TRUE; 589 return TRUE; 590 } 591 592 /* set "v:errmsg", also when using ":silent! cmd" */ 593 set_vim_var_string(VV_ERRMSG, s, -1); 594 #endif 595 596 /* 597 * When using ":silent! cmd" ignore error messsages. 598 * But do write it to the redirection file. 599 */ 600 if (emsg_silent != 0) 601 { 602 msg_start(); 603 p = get_emsg_source(); 604 if (p != NULL) 605 { 606 STRCAT(p, "\n"); 607 redir_write(p, -1); 608 vim_free(p); 609 } 610 p = get_emsg_lnum(); 611 if (p != NULL) 612 { 613 STRCAT(p, "\n"); 614 redir_write(p, -1); 615 vim_free(p); 616 } 617 redir_write(s, -1); 618 return TRUE; 619 } 620 621 /* Reset msg_silent, an error causes messages to be switched back on. */ 622 msg_silent = 0; 623 cmd_silent = FALSE; 624 625 if (global_busy) /* break :global command */ 626 ++global_busy; 627 628 if (p_eb) 629 beep_flush(); /* also includes flush_buffers() */ 630 else 631 flush_buffers(FALSE); /* flush internal buffers */ 632 did_emsg = TRUE; /* flag for DoOneCmd() */ 633 } 634 635 emsg_on_display = TRUE; /* remember there is an error message */ 636 ++msg_scroll; /* don't overwrite a previous message */ 637 attr = hl_attr(HLF_E); /* set highlight mode for error messages */ 638 if (msg_scrolled != 0) 639 need_wait_return = TRUE; /* needed in case emsg() is called after 640 * wait_return has reset need_wait_return 641 * and a redraw is expected because 642 * msg_scrolled is non-zero */ 643 644 /* 645 * Display name and line number for the source of the error. 646 */ 647 msg_source(attr); 648 649 /* 650 * Display the error message itself. 651 */ 652 msg_nowait = FALSE; /* wait for this msg */ 653 return msg_attr(s, attr); 654 } 655 656 /* 657 * Print an error message with one "%s" and one string argument. 658 */ 659 int 660 emsg2(s, a1) 661 char_u *s, *a1; 662 { 663 return emsg3(s, a1, NULL); 664 } 665 666 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 667 668 void 669 emsg_invreg(name) 670 int name; 671 { 672 EMSG2(_("E354: Invalid register name: '%s'"), transchar(name)); 673 } 674 675 /* 676 * Like msg(), but truncate to a single line if p_shm contains 't', or when 677 * "force" is TRUE. This truncates in another way as for normal messages. 678 * Careful: The string may be changed by msg_may_trunc()! 679 * Returns a pointer to the printed message, if wait_return() not called. 680 */ 681 char_u * 682 msg_trunc_attr(s, force, attr) 683 char_u *s; 684 int force; 685 int attr; 686 { 687 int n; 688 689 /* Add message to history before truncating */ 690 add_msg_hist(s, -1, attr); 691 692 s = msg_may_trunc(force, s); 693 694 msg_hist_off = TRUE; 695 n = msg_attr(s, attr); 696 msg_hist_off = FALSE; 697 698 if (n) 699 return s; 700 return NULL; 701 } 702 703 /* 704 * Check if message "s" should be truncated at the start (for filenames). 705 * Return a pointer to where the truncated message starts. 706 * Note: May change the message by replacing a character with '<'. 707 */ 708 char_u * 709 msg_may_trunc(force, s) 710 int force; 711 char_u *s; 712 { 713 int n; 714 int room; 715 716 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 717 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 718 && (n = (int)STRLEN(s) - room) > 0) 719 { 720 #ifdef FEAT_MBYTE 721 if (has_mbyte) 722 { 723 int size = vim_strsize(s); 724 725 for (n = 0; size >= room; ) 726 { 727 size -= (*mb_ptr2cells)(s + n); 728 n += (*mb_ptr2len)(s + n); 729 } 730 --n; 731 } 732 #endif 733 s += n; 734 *s = '<'; 735 } 736 return s; 737 } 738 739 static void 740 add_msg_hist(s, len, attr) 741 char_u *s; 742 int len; /* -1 for undetermined length */ 743 int attr; 744 { 745 struct msg_hist *p; 746 747 if (msg_hist_off || msg_silent != 0) 748 return; 749 750 /* Don't let the message history get too big */ 751 while (msg_hist_len > 20) 752 (void)delete_first_msg(); 753 754 /* allocate an entry and add the message at the end of the history */ 755 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 756 if (p != NULL) 757 { 758 if (len < 0) 759 len = (int)STRLEN(s); 760 /* remove leading and trailing newlines */ 761 while (len > 0 && *s == '\n') 762 { 763 ++s; 764 --len; 765 } 766 while (len > 0 && s[len - 1] == '\n') 767 --len; 768 p->msg = vim_strnsave(s, len); 769 p->next = NULL; 770 p->attr = attr; 771 if (last_msg_hist != NULL) 772 last_msg_hist->next = p; 773 last_msg_hist = p; 774 if (first_msg_hist == NULL) 775 first_msg_hist = last_msg_hist; 776 ++msg_hist_len; 777 } 778 } 779 780 /* 781 * Delete the first (oldest) message from the history. 782 * Returns FAIL if there are no messages. 783 */ 784 int 785 delete_first_msg() 786 { 787 struct msg_hist *p; 788 789 if (msg_hist_len <= 0) 790 return FAIL; 791 p = first_msg_hist; 792 first_msg_hist = p->next; 793 vim_free(p->msg); 794 vim_free(p); 795 --msg_hist_len; 796 return OK; 797 } 798 799 /* 800 * ":messages" command. 801 */ 802 /*ARGSUSED*/ 803 void 804 ex_messages(eap) 805 exarg_T *eap; 806 { 807 struct msg_hist *p; 808 char_u *s; 809 810 msg_hist_off = TRUE; 811 812 s = mch_getenv((char_u *)"LANG"); 813 if (s != NULL && *s != NUL) 814 msg_attr((char_u *) 815 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 816 hl_attr(HLF_T)); 817 818 for (p = first_msg_hist; p != NULL; p = p->next) 819 if (p->msg != NULL) 820 msg_attr(p->msg, p->attr); 821 822 msg_hist_off = FALSE; 823 } 824 825 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 826 /* 827 * Call this after prompting the user. This will avoid a hit-return message 828 * and a delay. 829 */ 830 void 831 msg_end_prompt() 832 { 833 need_wait_return = FALSE; 834 emsg_on_display = FALSE; 835 cmdline_row = msg_row; 836 msg_col = 0; 837 msg_clr_eos(); 838 } 839 #endif 840 841 /* 842 * wait for the user to hit a key (normally a return) 843 * if 'redraw' is TRUE, clear and redraw the screen 844 * if 'redraw' is FALSE, just redraw the screen 845 * if 'redraw' is -1, don't redraw at all 846 */ 847 void 848 wait_return(redraw) 849 int redraw; 850 { 851 int c; 852 int oldState; 853 int tmpState; 854 int had_got_int; 855 856 if (redraw == TRUE) 857 must_redraw = CLEAR; 858 859 /* If using ":silent cmd", don't wait for a return. Also don't set 860 * need_wait_return to do it later. */ 861 if (msg_silent != 0) 862 return; 863 864 /* 865 * With the global command (and some others) we only need one return at the 866 * end. Adjust cmdline_row to avoid the next message overwriting the last one. 867 * When inside vgetc(), we can't wait for a typed character at all. 868 */ 869 if (vgetc_busy) 870 return; 871 if (no_wait_return) 872 { 873 need_wait_return = TRUE; 874 if (!exmode_active) 875 cmdline_row = msg_row; 876 return; 877 } 878 879 redir_off = TRUE; /* don't redirect this message */ 880 oldState = State; 881 if (quit_more) 882 { 883 c = CAR; /* just pretend CR was hit */ 884 quit_more = FALSE; 885 got_int = FALSE; 886 } 887 else if (exmode_active) 888 { 889 MSG_PUTS(" "); /* make sure the cursor is on the right line */ 890 c = CAR; /* no need for a return in ex mode */ 891 got_int = FALSE; 892 } 893 else 894 { 895 /* Make sure the hit-return prompt is on screen when 'guioptions' was 896 * just changed. */ 897 screenalloc(FALSE); 898 899 State = HITRETURN; 900 #ifdef FEAT_MOUSE 901 setmouse(); 902 #endif 903 #ifdef USE_ON_FLY_SCROLL 904 dont_scroll = TRUE; /* disallow scrolling here */ 905 #endif 906 hit_return_msg(); 907 908 do 909 { 910 /* Remember "got_int", if it is set vgetc() probably returns a 911 * CTRL-C, but we need to loop then. */ 912 had_got_int = got_int; 913 914 /* Don't do mappings here, we put the character back in the 915 * typeahead buffer. */ 916 ++no_mapping; 917 ++allow_keys; 918 c = safe_vgetc(); 919 if (had_got_int && !global_busy) 920 got_int = FALSE; 921 --no_mapping; 922 --allow_keys; 923 924 #ifdef FEAT_CLIPBOARD 925 /* Strange way to allow copying (yanking) a modeless selection at 926 * the hit-enter prompt. Use CTRL-Y, because the same is used in 927 * Cmdline-mode and it's harmless when there is no selection. */ 928 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 929 { 930 clip_copy_modeless_selection(TRUE); 931 c = K_IGNORE; 932 } 933 #endif 934 if (p_more && !p_cp && (c == 'b' || c == 'k' || c == 'u' 935 || c == 'g' || c == K_UP)) 936 { 937 /* scroll back to show older messages */ 938 do_more_prompt(c); 939 if (quit_more) 940 { 941 c = CAR; /* just pretend CR was hit */ 942 quit_more = FALSE; 943 got_int = FALSE; 944 } 945 else 946 { 947 c = K_IGNORE; 948 hit_return_msg(); 949 } 950 } 951 } while ((had_got_int && c == Ctrl_C) 952 || c == K_IGNORE 953 #ifdef FEAT_GUI 954 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 955 #endif 956 #ifdef FEAT_MOUSE 957 || c == K_LEFTDRAG || c == K_LEFTRELEASE 958 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 959 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 960 || c == K_MOUSEDOWN || c == K_MOUSEUP 961 || (!mouse_has(MOUSE_RETURN) 962 && mouse_row < msg_row 963 && (c == K_LEFTMOUSE 964 || c == K_MIDDLEMOUSE 965 || c == K_RIGHTMOUSE 966 || c == K_X1MOUSE 967 || c == K_X2MOUSE)) 968 #endif 969 ); 970 ui_breakcheck(); 971 #ifdef FEAT_MOUSE 972 /* 973 * Avoid that the mouse-up event causes visual mode to start. 974 */ 975 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 976 || c == K_X1MOUSE || c == K_X2MOUSE) 977 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 978 else 979 #endif 980 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 981 { 982 char_u buf[2]; 983 984 /* Put the character back in the typeahead buffer. Don't use the 985 * stuff buffer, because lmaps wouldn't work. */ 986 buf[0] = c; 987 buf[1] = NUL; 988 ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE); 989 do_redraw = TRUE; /* need a redraw even though there is 990 typeahead */ 991 } 992 } 993 redir_off = FALSE; 994 995 /* 996 * If the user hits ':', '?' or '/' we get a command line from the next 997 * line. 998 */ 999 if (c == ':' || c == '?' || c == '/') 1000 { 1001 if (!exmode_active) 1002 cmdline_row = msg_row; 1003 skip_redraw = TRUE; /* skip redraw once */ 1004 do_redraw = FALSE; 1005 } 1006 1007 /* 1008 * If the window size changed set_shellsize() will redraw the screen. 1009 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1010 * typed. 1011 */ 1012 tmpState = State; 1013 State = oldState; /* restore State before set_shellsize */ 1014 #ifdef FEAT_MOUSE 1015 setmouse(); 1016 #endif 1017 msg_check(); 1018 1019 #if defined(UNIX) || defined(VMS) 1020 /* 1021 * When switching screens, we need to output an extra newline on exit. 1022 */ 1023 if (swapping_screen() && !termcap_active) 1024 newline_on_exit = TRUE; 1025 #endif 1026 1027 need_wait_return = FALSE; 1028 did_wait_return = TRUE; 1029 emsg_on_display = FALSE; /* can delete error message now */ 1030 lines_left = -1; /* reset lines_left at next msg_start() */ 1031 reset_last_sourcing(); 1032 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1033 (Rows - cmdline_row - 1) * Columns + sc_col) 1034 { 1035 vim_free(keep_msg); 1036 keep_msg = NULL; /* don't redisplay message, it's too long */ 1037 } 1038 1039 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1040 { 1041 starttermcap(); /* start termcap before redrawing */ 1042 shell_resized(); 1043 } 1044 else if (!skip_redraw 1045 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1046 { 1047 starttermcap(); /* start termcap before redrawing */ 1048 redraw_later(VALID); 1049 } 1050 } 1051 1052 /* 1053 * Write the hit-return prompt. 1054 */ 1055 static void 1056 hit_return_msg() 1057 { 1058 int save_p_more = p_more; 1059 1060 p_more = FALSE; /* don't want see this message when scrolling back */ 1061 if (msg_didout) /* start on a new line */ 1062 msg_putchar('\n'); 1063 if (got_int) 1064 MSG_PUTS(_("Interrupt: ")); 1065 1066 MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), hl_attr(HLF_R)); 1067 if (!msg_use_printf()) 1068 msg_clr_eos(); 1069 p_more = save_p_more; 1070 } 1071 1072 /* 1073 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1074 */ 1075 void 1076 set_keep_msg(s) 1077 char_u *s; 1078 { 1079 vim_free(keep_msg); 1080 if (s != NULL && msg_silent == 0) 1081 keep_msg = vim_strsave(s); 1082 else 1083 keep_msg = NULL; 1084 keep_msg_more = FALSE; 1085 } 1086 1087 /* 1088 * Prepare for outputting characters in the command line. 1089 */ 1090 void 1091 msg_start() 1092 { 1093 int did_return = FALSE; 1094 1095 vim_free(keep_msg); 1096 keep_msg = NULL; /* don't display old message now */ 1097 if (!msg_scroll && full_screen) /* overwrite last message */ 1098 { 1099 msg_row = cmdline_row; 1100 msg_col = 1101 #ifdef FEAT_RIGHTLEFT 1102 cmdmsg_rl ? Columns - 1 : 1103 #endif 1104 0; 1105 } 1106 else if (msg_didout) /* start message on next line */ 1107 { 1108 msg_putchar('\n'); 1109 did_return = TRUE; 1110 if (exmode_active != EXMODE_NORMAL) 1111 cmdline_row = msg_row; 1112 } 1113 if (!msg_didany || lines_left < 0) 1114 msg_starthere(); 1115 if (msg_silent == 0) 1116 { 1117 msg_didout = FALSE; /* no output on current line yet */ 1118 cursor_off(); 1119 } 1120 1121 /* when redirecting, may need to start a new line. */ 1122 if (!did_return) 1123 redir_write((char_u *)"\n", -1); 1124 } 1125 1126 /* 1127 * Note that the current msg position is where messages start. 1128 */ 1129 void 1130 msg_starthere() 1131 { 1132 lines_left = cmdline_row; 1133 msg_didany = FALSE; 1134 } 1135 1136 void 1137 msg_putchar(c) 1138 int c; 1139 { 1140 msg_putchar_attr(c, 0); 1141 } 1142 1143 void 1144 msg_putchar_attr(c, attr) 1145 int c; 1146 int attr; 1147 { 1148 #ifdef FEAT_MBYTE 1149 char_u buf[MB_MAXBYTES + 1]; 1150 #else 1151 char_u buf[4]; 1152 #endif 1153 1154 if (IS_SPECIAL(c)) 1155 { 1156 buf[0] = K_SPECIAL; 1157 buf[1] = K_SECOND(c); 1158 buf[2] = K_THIRD(c); 1159 buf[3] = NUL; 1160 } 1161 else 1162 { 1163 #ifdef FEAT_MBYTE 1164 buf[(*mb_char2bytes)(c, buf)] = NUL; 1165 #else 1166 buf[0] = c; 1167 buf[1] = NUL; 1168 #endif 1169 } 1170 msg_puts_attr(buf, attr); 1171 } 1172 1173 void 1174 msg_outnum(n) 1175 long n; 1176 { 1177 char_u buf[20]; 1178 1179 sprintf((char *)buf, "%ld", n); 1180 msg_puts(buf); 1181 } 1182 1183 void 1184 msg_home_replace(fname) 1185 char_u *fname; 1186 { 1187 msg_home_replace_attr(fname, 0); 1188 } 1189 1190 #if defined(FEAT_FIND_ID) || defined(PROTO) 1191 void 1192 msg_home_replace_hl(fname) 1193 char_u *fname; 1194 { 1195 msg_home_replace_attr(fname, hl_attr(HLF_D)); 1196 } 1197 #endif 1198 1199 static void 1200 msg_home_replace_attr(fname, attr) 1201 char_u *fname; 1202 int attr; 1203 { 1204 char_u *name; 1205 1206 name = home_replace_save(NULL, fname); 1207 if (name != NULL) 1208 msg_outtrans_attr(name, attr); 1209 vim_free(name); 1210 } 1211 1212 /* 1213 * Output 'len' characters in 'str' (including NULs) with translation 1214 * if 'len' is -1, output upto a NUL character. 1215 * Use attributes 'attr'. 1216 * Return the number of characters it takes on the screen. 1217 */ 1218 int 1219 msg_outtrans(str) 1220 char_u *str; 1221 { 1222 return msg_outtrans_attr(str, 0); 1223 } 1224 1225 int 1226 msg_outtrans_attr(str, attr) 1227 char_u *str; 1228 int attr; 1229 { 1230 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1231 } 1232 1233 int 1234 msg_outtrans_len(str, len) 1235 char_u *str; 1236 int len; 1237 { 1238 return msg_outtrans_len_attr(str, len, 0); 1239 } 1240 1241 /* 1242 * Output one character at "p". Return pointer to the next character. 1243 * Handles multi-byte characters. 1244 */ 1245 char_u * 1246 msg_outtrans_one(p, attr) 1247 char_u *p; 1248 int attr; 1249 { 1250 #ifdef FEAT_MBYTE 1251 int l; 1252 1253 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1254 { 1255 msg_outtrans_len_attr(p, l, attr); 1256 return p + l; 1257 } 1258 #endif 1259 msg_puts_attr(transchar_byte(*p), attr); 1260 return p + 1; 1261 } 1262 1263 int 1264 msg_outtrans_len_attr(msgstr, len, attr) 1265 char_u *msgstr; 1266 int len; 1267 int attr; 1268 { 1269 int retval = 0; 1270 char_u *str = msgstr; 1271 char_u *plain_start = msgstr; 1272 char_u *s; 1273 #ifdef FEAT_MBYTE 1274 int mb_l; 1275 int c; 1276 #endif 1277 1278 /* if MSG_HIST flag set, add message to history */ 1279 if (attr & MSG_HIST) 1280 { 1281 add_msg_hist(str, len, attr); 1282 attr &= ~MSG_HIST; 1283 } 1284 1285 #ifdef FEAT_MBYTE 1286 /* If the string starts with a composing character first draw a space on 1287 * which the composing char can be drawn. */ 1288 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1289 msg_puts_attr((char_u *)" ", attr); 1290 #endif 1291 1292 /* 1293 * Go over the string. Special characters are translated and printed. 1294 * Normal characters are printed several at a time. 1295 */ 1296 while (--len >= 0) 1297 { 1298 #ifdef FEAT_MBYTE 1299 if (enc_utf8) 1300 /* Don't include composing chars after the end. */ 1301 mb_l = utfc_ptr2len_len(str, len + 1); 1302 else if (has_mbyte) 1303 mb_l = (*mb_ptr2len)(str); 1304 else 1305 mb_l = 1; 1306 if (has_mbyte && mb_l > 1) 1307 { 1308 c = (*mb_ptr2char)(str); 1309 if (vim_isprintc(c)) 1310 /* printable multi-byte char: count the cells. */ 1311 retval += (*mb_ptr2cells)(str); 1312 else 1313 { 1314 /* unprintable multi-byte char: print the printable chars so 1315 * far and the translation of the unprintable char. */ 1316 if (str > plain_start) 1317 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1318 attr); 1319 plain_start = str + mb_l; 1320 msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr); 1321 retval += char2cells(c); 1322 } 1323 len -= mb_l - 1; 1324 str += mb_l; 1325 } 1326 else 1327 #endif 1328 { 1329 s = transchar_byte(*str); 1330 if (s[1] != NUL) 1331 { 1332 /* unprintable char: print the printable chars so far and the 1333 * translation of the unprintable char. */ 1334 if (str > plain_start) 1335 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1336 attr); 1337 plain_start = str + 1; 1338 msg_puts_attr(s, attr == 0 ? hl_attr(HLF_8) : attr); 1339 } 1340 retval += ptr2cells(str); 1341 ++str; 1342 } 1343 } 1344 1345 if (str > plain_start) 1346 /* print the printable chars at the end */ 1347 msg_puts_attr_len(plain_start, (int)(str - plain_start), attr); 1348 1349 return retval; 1350 } 1351 1352 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1353 void 1354 msg_make(arg) 1355 char_u *arg; 1356 { 1357 int i; 1358 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1359 1360 arg = skipwhite(arg); 1361 for (i = 5; *arg && i >= 0; --i) 1362 if (*arg++ != str[i]) 1363 break; 1364 if (i < 0) 1365 { 1366 msg_putchar('\n'); 1367 for (i = 0; rs[i]; ++i) 1368 msg_putchar(rs[i] - 3); 1369 } 1370 } 1371 #endif 1372 1373 /* 1374 * Output the string 'str' upto a NUL character. 1375 * Return the number of characters it takes on the screen. 1376 * 1377 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1378 * following character and shown as <F1>, <S-Up> etc. Any other character 1379 * which is not printable shown in <> form. 1380 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1381 * If a character is displayed in one of these special ways, is also 1382 * highlighted (its highlight name is '8' in the p_hl variable). 1383 * Otherwise characters are not highlighted. 1384 * This function is used to show mappings, where we want to see how to type 1385 * the character/string -- webb 1386 */ 1387 int 1388 msg_outtrans_special(strstart, from) 1389 char_u *strstart; 1390 int from; /* TRUE for lhs of a mapping */ 1391 { 1392 char_u *str = strstart; 1393 int retval = 0; 1394 char_u *string; 1395 int attr; 1396 int len; 1397 1398 attr = hl_attr(HLF_8); 1399 while (*str != NUL) 1400 { 1401 /* Leading and trailing spaces need to be displayed in <> form. */ 1402 if ((str == strstart || str[1] == NUL) && *str == ' ') 1403 { 1404 string = (char_u *)"<Space>"; 1405 ++str; 1406 } 1407 else 1408 string = str2special(&str, from); 1409 len = vim_strsize(string); 1410 /* Highlight special keys */ 1411 msg_puts_attr(string, len > 1 1412 #ifdef FEAT_MBYTE 1413 && (*mb_ptr2len)(string) <= 1 1414 #endif 1415 ? attr : 0); 1416 retval += len; 1417 } 1418 return retval; 1419 } 1420 1421 /* 1422 * Return the printable string for the key codes at "*sp". 1423 * Used for translating the lhs or rhs of a mapping to printable chars. 1424 * Advances "sp" to the next code. 1425 */ 1426 char_u * 1427 str2special(sp, from) 1428 char_u **sp; 1429 int from; /* TRUE for lhs of mapping */ 1430 { 1431 int c; 1432 static char_u buf[7]; 1433 char_u *str = *sp; 1434 int modifiers = 0; 1435 int special = FALSE; 1436 1437 #ifdef FEAT_MBYTE 1438 if (has_mbyte) 1439 { 1440 char_u *p; 1441 1442 /* Try to un-escape a multi-byte character. Return the un-escaped 1443 * string if it is a multi-byte character. */ 1444 p = mb_unescape(sp); 1445 if (p != NULL) 1446 return p; 1447 } 1448 #endif 1449 1450 c = *str; 1451 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1452 { 1453 if (str[1] == KS_MODIFIER) 1454 { 1455 modifiers = str[2]; 1456 str += 3; 1457 c = *str; 1458 } 1459 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1460 { 1461 c = TO_SPECIAL(str[1], str[2]); 1462 str += 2; 1463 if (c == K_ZERO) /* display <Nul> as ^@ */ 1464 c = NUL; 1465 } 1466 if (IS_SPECIAL(c) || modifiers) /* special key */ 1467 special = TRUE; 1468 } 1469 *sp = str + 1; 1470 1471 #ifdef FEAT_MBYTE 1472 /* For multi-byte characters check for an illegal byte. */ 1473 if (has_mbyte && MB_BYTE2LEN(*str) > (*mb_ptr2len)(str)) 1474 { 1475 transchar_nonprint(buf, c); 1476 return buf; 1477 } 1478 #endif 1479 1480 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1481 * Use <Space> only for lhs of a mapping. */ 1482 if (special || char2cells(c) > 1 || (from && c == ' ')) 1483 return get_special_key_name(c, modifiers); 1484 buf[0] = c; 1485 buf[1] = NUL; 1486 return buf; 1487 } 1488 1489 /* 1490 * Translate a key sequence into special key names. 1491 */ 1492 void 1493 str2specialbuf(sp, buf, len) 1494 char_u *sp; 1495 char_u *buf; 1496 int len; 1497 { 1498 char_u *s; 1499 1500 *buf = NUL; 1501 while (*sp) 1502 { 1503 s = str2special(&sp, FALSE); 1504 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1505 STRCAT(buf, s); 1506 } 1507 } 1508 1509 /* 1510 * print line for :print or :list command 1511 */ 1512 void 1513 msg_prt_line(s, list) 1514 char_u *s; 1515 int list; 1516 { 1517 int c; 1518 int col = 0; 1519 int n_extra = 0; 1520 int c_extra = 0; 1521 char_u *p_extra = NULL; /* init to make SASC shut up */ 1522 int n; 1523 int attr= 0; 1524 char_u *trail = NULL; 1525 #ifdef FEAT_MBYTE 1526 int l; 1527 char_u buf[MB_MAXBYTES + 1]; 1528 #endif 1529 1530 if (curwin->w_p_list) 1531 list = TRUE; 1532 1533 /* find start of trailing whitespace */ 1534 if (list && lcs_trail) 1535 { 1536 trail = s + STRLEN(s); 1537 while (trail > s && vim_iswhite(trail[-1])) 1538 --trail; 1539 } 1540 1541 /* output a space for an empty line, otherwise the line will be 1542 * overwritten */ 1543 if (*s == NUL && !(list && lcs_eol != NUL)) 1544 msg_putchar(' '); 1545 1546 while (!got_int) 1547 { 1548 if (n_extra) 1549 { 1550 --n_extra; 1551 if (c_extra) 1552 c = c_extra; 1553 else 1554 c = *p_extra++; 1555 } 1556 #ifdef FEAT_MBYTE 1557 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1558 { 1559 col += (*mb_ptr2cells)(s); 1560 mch_memmove(buf, s, (size_t)l); 1561 buf[l] = NUL; 1562 msg_puts_attr(buf, attr); 1563 s += l; 1564 continue; 1565 } 1566 #endif 1567 else 1568 { 1569 attr = 0; 1570 c = *s++; 1571 if (c == TAB && (!list || lcs_tab1)) 1572 { 1573 /* tab amount depends on current column */ 1574 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1575 if (!list) 1576 { 1577 c = ' '; 1578 c_extra = ' '; 1579 } 1580 else 1581 { 1582 c = lcs_tab1; 1583 c_extra = lcs_tab2; 1584 attr = hl_attr(HLF_8); 1585 } 1586 } 1587 else if (c == NUL && list && lcs_eol != NUL) 1588 { 1589 p_extra = (char_u *)""; 1590 c_extra = NUL; 1591 n_extra = 1; 1592 c = lcs_eol; 1593 attr = hl_attr(HLF_AT); 1594 --s; 1595 } 1596 else if (c != NUL && (n = byte2cells(c)) > 1) 1597 { 1598 n_extra = n - 1; 1599 p_extra = transchar_byte(c); 1600 c_extra = NUL; 1601 c = *p_extra++; 1602 } 1603 else if (c == ' ' && trail != NULL && s > trail) 1604 { 1605 c = lcs_trail; 1606 attr = hl_attr(HLF_8); 1607 } 1608 } 1609 1610 if (c == NUL) 1611 break; 1612 1613 msg_putchar_attr(c, attr); 1614 col++; 1615 } 1616 msg_clr_eos(); 1617 } 1618 1619 #ifdef FEAT_MBYTE 1620 /* 1621 * Use screen_puts() to output one multi-byte character. 1622 * Return the pointer "s" advanced to the next character. 1623 */ 1624 static char_u * 1625 screen_puts_mbyte(s, l, attr) 1626 char_u *s; 1627 int l; 1628 int attr; 1629 { 1630 int cw; 1631 1632 msg_didout = TRUE; /* remember that line is not empty */ 1633 cw = (*mb_ptr2cells)(s); 1634 if (cw > 1 && ( 1635 #ifdef FEAT_RIGHTLEFT 1636 cmdmsg_rl ? msg_col <= 1 : 1637 #endif 1638 msg_col == Columns - 1)) 1639 { 1640 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1641 msg_screen_putchar('>', hl_attr(HLF_AT)); 1642 return s; 1643 } 1644 1645 screen_puts_len(s, l, msg_row, msg_col, attr); 1646 #ifdef FEAT_RIGHTLEFT 1647 if (cmdmsg_rl) 1648 { 1649 msg_col -= cw; 1650 if (msg_col == 0) 1651 { 1652 msg_col = Columns; 1653 ++msg_row; 1654 } 1655 } 1656 else 1657 #endif 1658 { 1659 msg_col += cw; 1660 if (msg_col >= Columns) 1661 { 1662 msg_col = 0; 1663 ++msg_row; 1664 } 1665 } 1666 return s + l; 1667 } 1668 #endif 1669 1670 /* 1671 * Output a string to the screen at position msg_row, msg_col. 1672 * Update msg_row and msg_col for the next message. 1673 */ 1674 void 1675 msg_puts(s) 1676 char_u *s; 1677 { 1678 msg_puts_attr(s, 0); 1679 } 1680 1681 void 1682 msg_puts_title(s) 1683 char_u *s; 1684 { 1685 msg_puts_attr(s, hl_attr(HLF_T)); 1686 } 1687 1688 /* 1689 * Show a message in such a way that it always fits in the line. Cut out a 1690 * part in the middle and replace it with "..." when necessary. 1691 * Does not handle multi-byte characters! 1692 */ 1693 void 1694 msg_puts_long_attr(longstr, attr) 1695 char_u *longstr; 1696 int attr; 1697 { 1698 msg_puts_long_len_attr(longstr, (int)strlen((char *)longstr), attr); 1699 } 1700 1701 void 1702 msg_puts_long_len_attr(longstr, len, attr) 1703 char_u *longstr; 1704 int len; 1705 int attr; 1706 { 1707 int slen = len; 1708 int room; 1709 1710 room = Columns - msg_col; 1711 if (len > room && room >= 20) 1712 { 1713 slen = (room - 3) / 2; 1714 msg_outtrans_len_attr(longstr, slen, attr); 1715 msg_puts_attr((char_u *)"...", hl_attr(HLF_8)); 1716 } 1717 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 1718 } 1719 1720 /* 1721 * Basic function for writing a message with highlight attributes. 1722 */ 1723 void 1724 msg_puts_attr(s, attr) 1725 char_u *s; 1726 int attr; 1727 { 1728 msg_puts_attr_len(s, -1, attr); 1729 } 1730 1731 /* 1732 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 1733 * When "maxlen" is -1 there is no maximum length. 1734 * When "maxlen" is >= 0 the message is not put in the history. 1735 */ 1736 static void 1737 msg_puts_attr_len(str, maxlen, attr) 1738 char_u *str; 1739 int maxlen; 1740 int attr; 1741 { 1742 /* 1743 * If redirection is on, also write to the redirection file. 1744 */ 1745 redir_write(str, maxlen); 1746 1747 /* 1748 * Don't print anything when using ":silent cmd". 1749 */ 1750 if (msg_silent != 0) 1751 return; 1752 1753 /* if MSG_HIST flag set, add message to history */ 1754 if ((attr & MSG_HIST) && maxlen < 0) 1755 { 1756 add_msg_hist(str, -1, attr); 1757 attr &= ~MSG_HIST; 1758 } 1759 1760 /* 1761 * When writing something to the screen after it has scrolled, requires a 1762 * wait-return prompt later. Needed when scrolling, resetting 1763 * need_wait_return after some prompt, and then outputting something 1764 * without scrolling 1765 */ 1766 if (msg_scrolled != 0 && !msg_scrolled_ign) 1767 need_wait_return = TRUE; 1768 msg_didany = TRUE; /* remember that something was outputted */ 1769 1770 /* 1771 * If there is no valid screen, use fprintf so we can see error messages. 1772 * If termcap is not active, we may be writing in an alternate console 1773 * window, cursor positioning may not work correctly (window size may be 1774 * different, e.g. for Win32 console) or we just don't know where the 1775 * cursor is. 1776 */ 1777 if (msg_use_printf()) 1778 msg_puts_printf(str, maxlen); 1779 else 1780 msg_puts_display(str, maxlen, attr, FALSE); 1781 } 1782 1783 /* 1784 * The display part of msg_puts_attr_len(). 1785 * May be called recursively to display scroll-back text. 1786 */ 1787 static void 1788 msg_puts_display(str, maxlen, attr, recurse) 1789 char_u *str; 1790 int maxlen; 1791 int attr; 1792 int recurse; 1793 { 1794 char_u *s = str; 1795 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 1796 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 1797 #ifdef FEAT_MBYTE 1798 int l; 1799 int cw; 1800 #endif 1801 char_u *sb_str = str; 1802 int sb_col = msg_col; 1803 int wrap; 1804 1805 did_wait_return = FALSE; 1806 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 1807 { 1808 /* 1809 * We are at the end of the screen line when: 1810 * - When outputting a newline. 1811 * - When outputting a character in the last column. 1812 */ 1813 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 1814 #ifdef FEAT_RIGHTLEFT 1815 cmdmsg_rl 1816 ? ( 1817 msg_col <= 1 1818 || (*s == TAB && msg_col <= 7) 1819 # ifdef FEAT_MBYTE 1820 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2) 1821 # endif 1822 ) 1823 : 1824 #endif 1825 (msg_col + t_col >= Columns - 1 1826 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 1827 # ifdef FEAT_MBYTE 1828 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1829 && msg_col + t_col >= Columns - 2) 1830 # endif 1831 )))) 1832 { 1833 /* 1834 * The screen is scrolled up when at the last row (some terminals 1835 * scroll automatically, some don't. To avoid problems we scroll 1836 * ourselves). 1837 */ 1838 if (t_col > 0) 1839 /* output postponed text */ 1840 t_puts(&t_col, t_s, s, attr); 1841 1842 /* When no more prompt an no more room, truncate here */ 1843 if (msg_no_more && lines_left == 0) 1844 break; 1845 1846 /* Scroll the screen up one line. */ 1847 msg_scroll_up(); 1848 1849 msg_row = Rows - 2; 1850 if (msg_col >= Columns) /* can happen after screen resize */ 1851 msg_col = Columns - 1; 1852 1853 /* Display char in last column before showing more-prompt. */ 1854 if (*s >= ' ' 1855 #ifdef FEAT_RIGHTLEFT 1856 && !cmdmsg_rl 1857 #endif 1858 ) 1859 { 1860 #ifdef FEAT_MBYTE 1861 if (has_mbyte) 1862 { 1863 if (enc_utf8 && maxlen >= 0) 1864 /* avoid including composing chars after the end */ 1865 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 1866 else 1867 l = (*mb_ptr2len)(s); 1868 s = screen_puts_mbyte(s, l, attr); 1869 } 1870 else 1871 #endif 1872 msg_screen_putchar(*s++, attr); 1873 } 1874 1875 if (p_more) 1876 /* store text for scrolling back */ 1877 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1878 1879 inc_msg_scrolled(); 1880 need_wait_return = TRUE; /* may need wait_return in main() */ 1881 if (must_redraw < VALID) 1882 must_redraw = VALID; 1883 redraw_cmdline = TRUE; 1884 if (cmdline_row > 0 && !exmode_active) 1885 --cmdline_row; 1886 1887 /* 1888 * If screen is completely filled and 'more' is set then wait 1889 * for a character. 1890 */ 1891 if (p_more && --lines_left == 0 && State != HITRETURN 1892 && !msg_no_more && !exmode_active) 1893 { 1894 #ifdef FEAT_CON_DIALOG 1895 if (do_more_prompt(NUL)) 1896 s = confirm_msg_tail; 1897 #else 1898 (void)do_more_prompt(NUL); 1899 #endif 1900 if (quit_more) 1901 return; 1902 } 1903 1904 /* When we displayed a char in last column need to check if there 1905 * is still more. */ 1906 if (*s >= ' ' 1907 #ifdef FEAT_RIGHTLEFT 1908 && !cmdmsg_rl 1909 #endif 1910 ) 1911 continue; 1912 } 1913 1914 wrap = *s == '\n' 1915 || msg_col + t_col >= Columns 1916 #ifdef FEAT_MBYTE 1917 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1918 && msg_col + t_col >= Columns - 1) 1919 #endif 1920 ; 1921 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 1922 || *s == '\t' || *s == BELL)) 1923 /* output any postponed text */ 1924 t_puts(&t_col, t_s, s, attr); 1925 1926 if (wrap && p_more && !recurse) 1927 /* store text for scrolling back */ 1928 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1929 1930 if (*s == '\n') /* go to next line */ 1931 { 1932 msg_didout = FALSE; /* remember that line is empty */ 1933 #ifdef FEAT_RIGHTLEFT 1934 if (cmdmsg_rl) 1935 msg_col = Columns - 1; 1936 else 1937 #endif 1938 msg_col = 0; 1939 if (++msg_row >= Rows) /* safety check */ 1940 msg_row = Rows - 1; 1941 } 1942 else if (*s == '\r') /* go to column 0 */ 1943 { 1944 msg_col = 0; 1945 } 1946 else if (*s == '\b') /* go to previous char */ 1947 { 1948 if (msg_col) 1949 --msg_col; 1950 } 1951 else if (*s == TAB) /* translate Tab into spaces */ 1952 { 1953 do 1954 msg_screen_putchar(' ', attr); 1955 while (msg_col & 7); 1956 } 1957 else if (*s == BELL) /* beep (from ":sh") */ 1958 vim_beep(); 1959 else 1960 { 1961 #ifdef FEAT_MBYTE 1962 if (has_mbyte) 1963 { 1964 cw = (*mb_ptr2cells)(s); 1965 if (enc_utf8 && maxlen >= 0) 1966 /* avoid including composing chars after the end */ 1967 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 1968 else 1969 l = (*mb_ptr2len)(s); 1970 } 1971 else 1972 { 1973 cw = 1; 1974 l = 1; 1975 } 1976 #endif 1977 /* When drawing from right to left or when a double-wide character 1978 * doesn't fit, draw a single character here. Otherwise collect 1979 * characters and draw them all at once later. */ 1980 #if defined(FEAT_RIGHTLEFT) || defined(FEAT_MBYTE) 1981 if ( 1982 # ifdef FEAT_RIGHTLEFT 1983 cmdmsg_rl 1984 # ifdef FEAT_MBYTE 1985 || 1986 # endif 1987 # endif 1988 # ifdef FEAT_MBYTE 1989 (cw > 1 && msg_col + t_col >= Columns - 1) 1990 # endif 1991 ) 1992 { 1993 # ifdef FEAT_MBYTE 1994 if (l > 1) 1995 s = screen_puts_mbyte(s, l, attr) - 1; 1996 else 1997 # endif 1998 msg_screen_putchar(*s, attr); 1999 } 2000 else 2001 #endif 2002 { 2003 /* postpone this character until later */ 2004 if (t_col == 0) 2005 t_s = s; 2006 #ifdef FEAT_MBYTE 2007 t_col += cw; 2008 s += l - 1; 2009 #else 2010 ++t_col; 2011 #endif 2012 } 2013 } 2014 ++s; 2015 } 2016 2017 /* output any postponed text */ 2018 if (t_col > 0) 2019 t_puts(&t_col, t_s, s, attr); 2020 if (p_more && !recurse) 2021 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2022 2023 msg_check(); 2024 } 2025 2026 /* 2027 * Scroll the screen up one line for displaying the next message line. 2028 */ 2029 static void 2030 msg_scroll_up() 2031 { 2032 #ifdef FEAT_GUI 2033 /* Remove the cursor before scrolling, ScreenLines[] is going 2034 * to become invalid. */ 2035 if (gui.in_use) 2036 gui_undraw_cursor(); 2037 #endif 2038 /* scrolling up always works */ 2039 screen_del_lines(0, 0, 1, (int)Rows, TRUE, NULL); 2040 2041 if (!can_clear((char_u *)" ")) 2042 { 2043 /* Scrolling up doesn't result in the right background. Set the 2044 * background here. It's not efficient, but avoids that we have to do 2045 * it all over the code. */ 2046 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2047 2048 /* Also clear the last char of the last but one line if it was not 2049 * cleared before to avoid a scroll-up. */ 2050 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2051 screen_fill((int)Rows - 2, (int)Rows - 1, 2052 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2053 } 2054 } 2055 2056 /* 2057 * Increment "msg_scrolled". 2058 */ 2059 static void 2060 inc_msg_scrolled() 2061 { 2062 #ifdef FEAT_EVAL 2063 if (*get_vim_var_str(VV_SCROLLSTART) == NUL) 2064 { 2065 char_u *p = sourcing_name; 2066 char_u *tofree = NULL; 2067 int len; 2068 2069 /* v:scrollstart is empty, set it to the script/function name and line 2070 * number */ 2071 if (p == NULL) 2072 p = (char_u *)_("Unknown"); 2073 else 2074 { 2075 len = STRLEN(p) + 40; 2076 tofree = alloc(len); 2077 if (tofree != NULL) 2078 { 2079 vim_snprintf((char *)tofree, len, _("%s line %ld"), 2080 p, (long)sourcing_lnum); 2081 p = tofree; 2082 } 2083 } 2084 set_vim_var_string(VV_SCROLLSTART, p, -1); 2085 vim_free(tofree); 2086 } 2087 #endif 2088 ++msg_scrolled; 2089 } 2090 2091 /* 2092 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2093 * store the displayed text and remember where screen lines start. 2094 */ 2095 typedef struct msgchunk_S msgchunk_T; 2096 struct msgchunk_S 2097 { 2098 msgchunk_T *sb_next; 2099 msgchunk_T *sb_prev; 2100 char sb_eol; /* TRUE when line ends after this text */ 2101 int sb_msg_col; /* column in which text starts */ 2102 int sb_attr; /* text attributes */ 2103 char_u sb_text[1]; /* text to be displayed, actually longer */ 2104 }; 2105 2106 static msgchunk_T *last_msgchunk = NULL; /* last displayed text */ 2107 2108 static msgchunk_T *msg_sb_start __ARGS((msgchunk_T *mps)); 2109 static msgchunk_T *disp_sb_line __ARGS((int row, msgchunk_T *smp)); 2110 2111 static int do_clear_sb_text = FALSE; /* clear text on next msg */ 2112 2113 /* 2114 * Store part of a printed message for displaying when scrolling back. 2115 */ 2116 static void 2117 store_sb_text(sb_str, s, attr, sb_col, finish) 2118 char_u **sb_str; /* start of string */ 2119 char_u *s; /* just after string */ 2120 int attr; 2121 int *sb_col; 2122 int finish; /* line ends */ 2123 { 2124 msgchunk_T *mp; 2125 2126 if (do_clear_sb_text) 2127 { 2128 clear_sb_text(); 2129 do_clear_sb_text = FALSE; 2130 } 2131 2132 if (s > *sb_str) 2133 { 2134 mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str))); 2135 if (mp != NULL) 2136 { 2137 mp->sb_eol = finish; 2138 mp->sb_msg_col = *sb_col; 2139 mp->sb_attr = attr; 2140 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2141 2142 if (last_msgchunk == NULL) 2143 { 2144 last_msgchunk = mp; 2145 mp->sb_prev = NULL; 2146 } 2147 else 2148 { 2149 mp->sb_prev = last_msgchunk; 2150 last_msgchunk->sb_next = mp; 2151 last_msgchunk = mp; 2152 } 2153 mp->sb_next = NULL; 2154 } 2155 } 2156 else if (finish && last_msgchunk != NULL) 2157 last_msgchunk->sb_eol = TRUE; 2158 2159 *sb_str = s; 2160 *sb_col = 0; 2161 } 2162 2163 /* 2164 * Finished showing messages, clear the scroll-back text on the next message. 2165 */ 2166 void 2167 may_clear_sb_text() 2168 { 2169 do_clear_sb_text = TRUE; 2170 } 2171 2172 /* 2173 * Clear any text remembered for scrolling back. 2174 * Called when redrawing the screen. 2175 */ 2176 void 2177 clear_sb_text() 2178 { 2179 msgchunk_T *mp; 2180 2181 while (last_msgchunk != NULL) 2182 { 2183 mp = last_msgchunk->sb_prev; 2184 vim_free(last_msgchunk); 2185 last_msgchunk = mp; 2186 } 2187 last_msgchunk = NULL; 2188 } 2189 2190 /* 2191 * "g<" command. 2192 */ 2193 void 2194 show_sb_text() 2195 { 2196 msgchunk_T *mp; 2197 2198 /* Only show somethign if there is more than one line, otherwise it looks 2199 * weird, typing a command without output results in one line. */ 2200 mp = msg_sb_start(last_msgchunk); 2201 if (mp == NULL || mp->sb_prev == NULL) 2202 vim_beep(); 2203 else 2204 { 2205 do_more_prompt('G'); 2206 wait_return(FALSE); 2207 } 2208 } 2209 2210 /* 2211 * Move to the start of screen line in already displayed text. 2212 */ 2213 static msgchunk_T * 2214 msg_sb_start(mps) 2215 msgchunk_T *mps; 2216 { 2217 msgchunk_T *mp = mps; 2218 2219 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2220 mp = mp->sb_prev; 2221 return mp; 2222 } 2223 2224 /* 2225 * Display a screen line from previously displayed text at row "row". 2226 * Returns a pointer to the text for the next line (can be NULL). 2227 */ 2228 static msgchunk_T * 2229 disp_sb_line(row, smp) 2230 int row; 2231 msgchunk_T *smp; 2232 { 2233 msgchunk_T *mp = smp; 2234 char_u *p; 2235 2236 for (;;) 2237 { 2238 msg_row = row; 2239 msg_col = mp->sb_msg_col; 2240 p = mp->sb_text; 2241 if (*p == '\n') /* don't display the line break */ 2242 ++p; 2243 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2244 if (mp->sb_eol || mp->sb_next == NULL) 2245 break; 2246 mp = mp->sb_next; 2247 } 2248 return mp->sb_next; 2249 } 2250 2251 /* 2252 * Output any postponed text for msg_puts_attr_len(). 2253 */ 2254 static void 2255 t_puts(t_col, t_s, s, attr) 2256 int *t_col; 2257 char_u *t_s; 2258 char_u *s; 2259 int attr; 2260 { 2261 /* output postponed text */ 2262 msg_didout = TRUE; /* remember that line is not empty */ 2263 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2264 msg_col += *t_col; 2265 *t_col = 0; 2266 #ifdef FEAT_MBYTE 2267 /* If the string starts with a composing character don't increment the 2268 * column position for it. */ 2269 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2270 --msg_col; 2271 #endif 2272 if (msg_col >= Columns) 2273 { 2274 msg_col = 0; 2275 ++msg_row; 2276 } 2277 } 2278 2279 /* 2280 * Returns TRUE when messages should be printed with mch_errmsg(). 2281 * This is used when there is no valid screen, so we can see error messages. 2282 * If termcap is not active, we may be writing in an alternate console 2283 * window, cursor positioning may not work correctly (window size may be 2284 * different, e.g. for Win32 console) or we just don't know where the 2285 * cursor is. 2286 */ 2287 int 2288 msg_use_printf() 2289 { 2290 return (!msg_check_screen() 2291 #if defined(WIN3264) && !defined(FEAT_GUI_MSWIN) 2292 || !termcap_active 2293 #endif 2294 || (swapping_screen() && !termcap_active) 2295 ); 2296 } 2297 2298 /* 2299 * Print a message when there is no valid screen. 2300 */ 2301 static void 2302 msg_puts_printf(str, maxlen) 2303 char_u *str; 2304 int maxlen; 2305 { 2306 char_u *s = str; 2307 char_u buf[4]; 2308 char_u *p; 2309 2310 #ifdef WIN3264 2311 if (!(silent_mode && p_verbose == 0)) 2312 mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */ 2313 #endif 2314 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 2315 { 2316 if (!(silent_mode && p_verbose == 0)) 2317 { 2318 /* NL --> CR NL translation (for Unix, not for "--version") */ 2319 /* NL --> CR translation (for Mac) */ 2320 p = &buf[0]; 2321 if (*s == '\n' && !info_message) 2322 *p++ = '\r'; 2323 #if defined(USE_CR) && !defined(MACOS_X_UNIX) 2324 else 2325 #endif 2326 *p++ = *s; 2327 *p = '\0'; 2328 if (info_message) /* informative message, not an error */ 2329 mch_msg((char *)buf); 2330 else 2331 mch_errmsg((char *)buf); 2332 } 2333 2334 /* primitive way to compute the current column */ 2335 #ifdef FEAT_RIGHTLEFT 2336 if (cmdmsg_rl) 2337 { 2338 if (*s == '\r' || *s == '\n') 2339 msg_col = Columns - 1; 2340 else 2341 --msg_col; 2342 } 2343 else 2344 #endif 2345 { 2346 if (*s == '\r' || *s == '\n') 2347 msg_col = 0; 2348 else 2349 ++msg_col; 2350 } 2351 ++s; 2352 } 2353 msg_didout = TRUE; /* assume that line is not empty */ 2354 2355 #ifdef WIN3264 2356 if (!(silent_mode && p_verbose == 0)) 2357 mch_settmode(TMODE_RAW); 2358 #endif 2359 } 2360 2361 /* 2362 * Show the more-prompt and handle the user response. 2363 * This takes care of scrolling back and displaying previously displayed text. 2364 * When at hit-enter prompt "typed_char" is the already typed character, 2365 * otherwise it's NUL. 2366 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2367 */ 2368 static int 2369 do_more_prompt(typed_char) 2370 int typed_char; 2371 { 2372 int used_typed_char = typed_char; 2373 int oldState = State; 2374 int c; 2375 #ifdef FEAT_CON_DIALOG 2376 int retval = FALSE; 2377 #endif 2378 int scroll; 2379 msgchunk_T *mp_last = NULL; 2380 msgchunk_T *mp; 2381 int i; 2382 2383 if (typed_char == 'G') 2384 { 2385 /* "g<": Find first line on the last page. */ 2386 mp_last = msg_sb_start(last_msgchunk); 2387 for (i = 0; i < Rows - 2 && mp_last != NULL 2388 && mp_last->sb_prev != NULL; ++i) 2389 mp_last = msg_sb_start(mp_last->sb_prev); 2390 } 2391 2392 State = ASKMORE; 2393 #ifdef FEAT_MOUSE 2394 setmouse(); 2395 #endif 2396 if (typed_char == NUL) 2397 msg_moremsg(FALSE); 2398 for (;;) 2399 { 2400 /* 2401 * Get a typed character directly from the user. 2402 */ 2403 if (used_typed_char != NUL) 2404 { 2405 c = used_typed_char; /* was typed at hit-enter prompt */ 2406 used_typed_char = NUL; 2407 } 2408 else 2409 c = get_keystroke(); 2410 2411 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2412 if (c == K_MENU) 2413 { 2414 int idx = get_menu_index(current_menu, ASKMORE); 2415 2416 /* Used a menu. If it starts with CTRL-Y, it must 2417 * be a "Copy" for the clipboard. Otherwise 2418 * assume that we end */ 2419 if (idx == MENU_INDEX_INVALID) 2420 continue; 2421 c = *current_menu->strings[idx]; 2422 if (c != NUL && current_menu->strings[idx][1] != NUL) 2423 ins_typebuf(current_menu->strings[idx] + 1, 2424 current_menu->noremap[idx], 0, TRUE, 2425 current_menu->silent[idx]); 2426 } 2427 #endif 2428 2429 scroll = 0; 2430 switch (c) 2431 { 2432 case BS: /* scroll one line back */ 2433 case K_BS: 2434 case 'k': 2435 case K_UP: 2436 scroll = -1; 2437 break; 2438 2439 case CAR: /* one extra line */ 2440 case NL: 2441 case 'j': 2442 case K_DOWN: 2443 scroll = 1; 2444 break; 2445 2446 case 'u': /* Up half a page */ 2447 case K_PAGEUP: 2448 scroll = -(Rows / 2); 2449 break; 2450 2451 case 'd': /* Down half a page */ 2452 scroll = Rows / 2; 2453 break; 2454 2455 case 'b': /* one page back */ 2456 scroll = -(Rows - 1); 2457 break; 2458 2459 case ' ': /* one extra page */ 2460 case K_PAGEDOWN: 2461 case K_LEFTMOUSE: 2462 scroll = Rows - 1; 2463 break; 2464 2465 case 'g': /* all the way back to the start */ 2466 scroll = -999999; 2467 break; 2468 2469 case 'G': /* all the way to the end */ 2470 scroll = 999999; 2471 lines_left = 999999; 2472 break; 2473 2474 case ':': /* start new command line */ 2475 #ifdef FEAT_CON_DIALOG 2476 if (!confirm_msg_used) 2477 #endif 2478 { 2479 /* Since got_int is set all typeahead will be flushed, but we 2480 * want to keep this ':', remember that in a special way. */ 2481 typeahead_noflush(':'); 2482 cmdline_row = Rows - 1; /* put ':' on this line */ 2483 skip_redraw = TRUE; /* skip redraw once */ 2484 need_wait_return = FALSE; /* don't wait in main() */ 2485 } 2486 /*FALLTHROUGH*/ 2487 case 'q': /* quit */ 2488 case Ctrl_C: 2489 case ESC: 2490 #ifdef FEAT_CON_DIALOG 2491 if (confirm_msg_used) 2492 { 2493 /* Jump to the choices of the dialog. */ 2494 retval = TRUE; 2495 lines_left = Rows - 1; 2496 } 2497 else 2498 #endif 2499 { 2500 got_int = TRUE; 2501 quit_more = TRUE; 2502 } 2503 break; 2504 2505 #ifdef FEAT_CLIPBOARD 2506 case Ctrl_Y: 2507 /* Strange way to allow copying (yanking) a modeless 2508 * selection at the more prompt. Use CTRL-Y, 2509 * because the same is used in Cmdline-mode and at the 2510 * hit-enter prompt. However, scrolling one line up 2511 * might be expected... */ 2512 if (clip_star.state == SELECT_DONE) 2513 clip_copy_modeless_selection(TRUE); 2514 continue; 2515 #endif 2516 default: /* no valid response */ 2517 msg_moremsg(TRUE); 2518 continue; 2519 } 2520 2521 if (scroll != 0) 2522 { 2523 if (scroll < 0) 2524 { 2525 /* go to start of last line */ 2526 if (mp_last == NULL) 2527 mp = msg_sb_start(last_msgchunk); 2528 else if (mp_last->sb_prev != NULL) 2529 mp = msg_sb_start(mp_last->sb_prev); 2530 else 2531 mp = NULL; 2532 2533 /* go to start of line at top of the screen */ 2534 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2535 ++i) 2536 mp = msg_sb_start(mp->sb_prev); 2537 2538 if (mp != NULL && mp->sb_prev != NULL) 2539 { 2540 /* Find line to be displayed at top. */ 2541 for (i = 0; i > scroll; --i) 2542 { 2543 if (mp == NULL || mp->sb_prev == NULL) 2544 break; 2545 mp = msg_sb_start(mp->sb_prev); 2546 if (mp_last == NULL) 2547 mp_last = msg_sb_start(last_msgchunk); 2548 else 2549 mp_last = msg_sb_start(mp_last->sb_prev); 2550 } 2551 2552 if (scroll == -1 && screen_ins_lines(0, 0, 1, 2553 (int)Rows, NULL) == OK) 2554 { 2555 /* display line at top */ 2556 (void)disp_sb_line(0, mp); 2557 } 2558 else 2559 { 2560 /* redisplay all lines */ 2561 screenclear(); 2562 for (i = 0; i < Rows - 1; ++i) 2563 mp = disp_sb_line(i, mp); 2564 } 2565 scroll = 0; 2566 } 2567 } 2568 else 2569 { 2570 /* First display any text that we scrolled back. */ 2571 while (scroll > 0 && mp_last != NULL) 2572 { 2573 /* scroll up, display line at bottom */ 2574 msg_scroll_up(); 2575 inc_msg_scrolled(); 2576 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2577 (int)Columns, ' ', ' ', 0); 2578 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2579 --scroll; 2580 } 2581 } 2582 2583 if (scroll < 0 || (scroll == 0 && mp_last != NULL)) 2584 { 2585 /* displayed the requested text, more prompt again */ 2586 screen_fill((int)Rows - 1, (int)Rows, 0, 2587 (int)Columns, ' ', ' ', 0); 2588 msg_moremsg(FALSE); 2589 continue; 2590 } 2591 2592 /* display more text, return to caller */ 2593 lines_left = scroll; 2594 } 2595 2596 break; 2597 } 2598 2599 /* clear the --more-- message */ 2600 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2601 State = oldState; 2602 #ifdef FEAT_MOUSE 2603 setmouse(); 2604 #endif 2605 if (quit_more) 2606 { 2607 msg_row = Rows - 1; 2608 msg_col = 0; 2609 } 2610 #ifdef FEAT_RIGHTLEFT 2611 else if (cmdmsg_rl) 2612 msg_col = Columns - 1; 2613 #endif 2614 2615 #ifdef FEAT_CON_DIALOG 2616 return retval; 2617 #else 2618 return FALSE; 2619 #endif 2620 } 2621 2622 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 2623 2624 #ifdef mch_errmsg 2625 # undef mch_errmsg 2626 #endif 2627 #ifdef mch_msg 2628 # undef mch_msg 2629 #endif 2630 2631 /* 2632 * Give an error message. To be used when the screen hasn't been initialized 2633 * yet. When stderr can't be used, collect error messages until the GUI has 2634 * started and they can be displayed in a message box. 2635 */ 2636 void 2637 mch_errmsg(str) 2638 char *str; 2639 { 2640 int len; 2641 2642 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2643 /* On Unix use stderr if it's a tty. 2644 * When not going to start the GUI also use stderr. 2645 * On Mac, when started from Finder, stderr is the console. */ 2646 if ( 2647 # ifdef UNIX 2648 # ifdef MACOS_X_UNIX 2649 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2650 # else 2651 isatty(2) 2652 # endif 2653 # ifdef FEAT_GUI 2654 || 2655 # endif 2656 # endif 2657 # ifdef FEAT_GUI 2658 !(gui.in_use || gui.starting) 2659 # endif 2660 ) 2661 { 2662 fprintf(stderr, "%s", str); 2663 return; 2664 } 2665 #endif 2666 2667 /* avoid a delay for a message that isn't there */ 2668 emsg_on_display = FALSE; 2669 2670 len = (int)STRLEN(str) + 1; 2671 if (error_ga.ga_growsize == 0) 2672 { 2673 error_ga.ga_growsize = 80; 2674 error_ga.ga_itemsize = 1; 2675 } 2676 if (ga_grow(&error_ga, len) == OK) 2677 { 2678 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 2679 (char_u *)str, len); 2680 #ifdef UNIX 2681 /* remove CR characters, they are displayed */ 2682 { 2683 char_u *p; 2684 2685 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 2686 for (;;) 2687 { 2688 p = vim_strchr(p, '\r'); 2689 if (p == NULL) 2690 break; 2691 *p = ' '; 2692 } 2693 } 2694 #endif 2695 --len; /* don't count the NUL at the end */ 2696 error_ga.ga_len += len; 2697 } 2698 } 2699 2700 /* 2701 * Give a message. To be used when the screen hasn't been initialized yet. 2702 * When there is no tty, collect messages until the GUI has started and they 2703 * can be displayed in a message box. 2704 */ 2705 void 2706 mch_msg(str) 2707 char *str; 2708 { 2709 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2710 /* On Unix use stdout if we have a tty. This allows "vim -h | more" and 2711 * uses mch_errmsg() when started from the desktop. 2712 * When not going to start the GUI also use stdout. 2713 * On Mac, when started from Finder, stderr is the console. */ 2714 if ( 2715 # ifdef UNIX 2716 # ifdef MACOS_X_UNIX 2717 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2718 # else 2719 isatty(2) 2720 # endif 2721 # ifdef FEAT_GUI 2722 || 2723 # endif 2724 # endif 2725 # ifdef FEAT_GUI 2726 !(gui.in_use || gui.starting) 2727 # endif 2728 ) 2729 { 2730 printf("%s", str); 2731 return; 2732 } 2733 # endif 2734 mch_errmsg(str); 2735 } 2736 #endif /* USE_MCH_ERRMSG */ 2737 2738 /* 2739 * Put a character on the screen at the current message position and advance 2740 * to the next position. Only for printable ASCII! 2741 */ 2742 static void 2743 msg_screen_putchar(c, attr) 2744 int c; 2745 int attr; 2746 { 2747 msg_didout = TRUE; /* remember that line is not empty */ 2748 screen_putchar(c, msg_row, msg_col, attr); 2749 #ifdef FEAT_RIGHTLEFT 2750 if (cmdmsg_rl) 2751 { 2752 if (--msg_col == 0) 2753 { 2754 msg_col = Columns; 2755 ++msg_row; 2756 } 2757 } 2758 else 2759 #endif 2760 { 2761 if (++msg_col >= Columns) 2762 { 2763 msg_col = 0; 2764 ++msg_row; 2765 } 2766 } 2767 } 2768 2769 void 2770 msg_moremsg(full) 2771 int full; 2772 { 2773 int attr; 2774 char_u *s = (char_u *)_("-- More --"); 2775 2776 attr = hl_attr(HLF_M); 2777 screen_puts(s, (int)Rows - 1, 0, attr); 2778 if (full) 2779 screen_puts((char_u *) 2780 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 2781 (int)Rows - 1, vim_strsize(s), attr); 2782 } 2783 2784 /* 2785 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 2786 * exmode_active. 2787 */ 2788 void 2789 repeat_message() 2790 { 2791 if (State == ASKMORE) 2792 { 2793 msg_moremsg(TRUE); /* display --more-- message again */ 2794 msg_row = Rows - 1; 2795 } 2796 #ifdef FEAT_CON_DIALOG 2797 else if (State == CONFIRM) 2798 { 2799 display_confirm_msg(); /* display ":confirm" message again */ 2800 msg_row = Rows - 1; 2801 } 2802 #endif 2803 else if (State == EXTERNCMD) 2804 { 2805 windgoto(msg_row, msg_col); /* put cursor back */ 2806 } 2807 else if (State == HITRETURN || State == SETWSIZE) 2808 { 2809 hit_return_msg(); 2810 msg_row = Rows - 1; 2811 } 2812 } 2813 2814 /* 2815 * msg_check_screen - check if the screen is initialized. 2816 * Also check msg_row and msg_col, if they are too big it may cause a crash. 2817 * While starting the GUI the terminal codes will be set for the GUI, but the 2818 * output goes to the terminal. Don't use the terminal codes then. 2819 */ 2820 static int 2821 msg_check_screen() 2822 { 2823 if (!full_screen || !screen_valid(FALSE)) 2824 return FALSE; 2825 2826 if (msg_row >= Rows) 2827 msg_row = Rows - 1; 2828 if (msg_col >= Columns) 2829 msg_col = Columns - 1; 2830 return TRUE; 2831 } 2832 2833 /* 2834 * Clear from current message position to end of screen. 2835 * Skip this when ":silent" was used, no need to clear for redirection. 2836 */ 2837 void 2838 msg_clr_eos() 2839 { 2840 if (msg_silent == 0) 2841 msg_clr_eos_force(); 2842 } 2843 2844 /* 2845 * Clear from current message position to end of screen. 2846 * Note: msg_col is not updated, so we remember the end of the message 2847 * for msg_check(). 2848 */ 2849 void 2850 msg_clr_eos_force() 2851 { 2852 if (msg_use_printf()) 2853 { 2854 if (full_screen) /* only when termcap codes are valid */ 2855 { 2856 if (*T_CD) 2857 out_str(T_CD); /* clear to end of display */ 2858 else if (*T_CE) 2859 out_str(T_CE); /* clear to end of line */ 2860 } 2861 } 2862 else 2863 { 2864 #ifdef FEAT_RIGHTLEFT 2865 if (cmdmsg_rl) 2866 { 2867 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 2868 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2869 } 2870 else 2871 #endif 2872 { 2873 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 2874 ' ', ' ', 0); 2875 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2876 } 2877 } 2878 } 2879 2880 /* 2881 * Clear the command line. 2882 */ 2883 void 2884 msg_clr_cmdline() 2885 { 2886 msg_row = cmdline_row; 2887 msg_col = 0; 2888 msg_clr_eos_force(); 2889 } 2890 2891 /* 2892 * end putting a message on the screen 2893 * call wait_return if the message does not fit in the available space 2894 * return TRUE if wait_return not called. 2895 */ 2896 int 2897 msg_end() 2898 { 2899 /* 2900 * if the string is larger than the window, 2901 * or the ruler option is set and we run into it, 2902 * we have to redraw the window. 2903 * Do not do this if we are abandoning the file or editing the command line. 2904 */ 2905 if (!exiting && need_wait_return && !(State & CMDLINE)) 2906 { 2907 wait_return(FALSE); 2908 return FALSE; 2909 } 2910 out_flush(); 2911 return TRUE; 2912 } 2913 2914 /* 2915 * If the written message runs into the shown command or ruler, we have to 2916 * wait for hit-return and redraw the window later. 2917 */ 2918 void 2919 msg_check() 2920 { 2921 if (msg_row == Rows - 1 && msg_col >= sc_col) 2922 { 2923 need_wait_return = TRUE; 2924 redraw_cmdline = TRUE; 2925 } 2926 } 2927 2928 /* 2929 * May write a string to the redirection file. 2930 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 2931 */ 2932 static void 2933 redir_write(str, maxlen) 2934 char_u *str; 2935 int maxlen; 2936 { 2937 char_u *s = str; 2938 static int cur_col = 0; 2939 2940 /* Don't do anything for displaying prompts and the like. */ 2941 if (redir_off) 2942 return; 2943 2944 /* 2945 * If 'verbosefile' is set write message in that file. 2946 * Must come before the rest because of updating "msg_col". 2947 */ 2948 if (*p_vfile != NUL) 2949 verbose_write(s, maxlen); 2950 2951 if (redir_fd != NULL 2952 #ifdef FEAT_EVAL 2953 || redir_reg || redir_vname 2954 #endif 2955 ) 2956 { 2957 /* If the string doesn't start with CR or NL, go to msg_col */ 2958 if (*s != '\n' && *s != '\r') 2959 { 2960 while (cur_col < msg_col) 2961 { 2962 #ifdef FEAT_EVAL 2963 if (redir_reg) 2964 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 2965 else if (redir_vname) 2966 var_redir_str((char_u *)" ", -1); 2967 else if (redir_fd) 2968 #endif 2969 fputs(" ", redir_fd); 2970 ++cur_col; 2971 } 2972 } 2973 2974 #ifdef FEAT_EVAL 2975 if (redir_reg) 2976 write_reg_contents(redir_reg, s, maxlen, TRUE); 2977 if (redir_vname) 2978 var_redir_str(s, maxlen); 2979 #endif 2980 2981 /* Adjust the current column */ 2982 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 2983 { 2984 #ifdef FEAT_EVAL 2985 if (!redir_reg && !redir_vname && redir_fd != NULL) 2986 #endif 2987 putc(*s, redir_fd); 2988 if (*s == '\r' || *s == '\n') 2989 cur_col = 0; 2990 else if (*s == '\t') 2991 cur_col += (8 - cur_col % 8); 2992 else 2993 ++cur_col; 2994 ++s; 2995 } 2996 2997 if (msg_silent != 0) /* should update msg_col */ 2998 msg_col = cur_col; 2999 } 3000 } 3001 3002 /* 3003 * Before giving verbose messsage. 3004 * Must always be called paired with verbose_leave()! 3005 */ 3006 void 3007 verbose_enter() 3008 { 3009 if (*p_vfile != NUL) 3010 ++msg_silent; 3011 } 3012 3013 /* 3014 * After giving verbose message. 3015 * Must always be called paired with verbose_enter()! 3016 */ 3017 void 3018 verbose_leave() 3019 { 3020 if (*p_vfile != NUL) 3021 if (--msg_silent < 0) 3022 msg_silent = 0; 3023 } 3024 3025 /* 3026 * Like verbose_enter() and set msg_scroll when displaying the message. 3027 */ 3028 void 3029 verbose_enter_scroll() 3030 { 3031 if (*p_vfile != NUL) 3032 ++msg_silent; 3033 else 3034 /* always scroll up, don't overwrite */ 3035 msg_scroll = TRUE; 3036 } 3037 3038 /* 3039 * Like verbose_leave() and set cmdline_row when displaying the message. 3040 */ 3041 void 3042 verbose_leave_scroll() 3043 { 3044 if (*p_vfile != NUL) 3045 { 3046 if (--msg_silent < 0) 3047 msg_silent = 0; 3048 } 3049 else 3050 cmdline_row = msg_row; 3051 } 3052 3053 static FILE *verbose_fd = NULL; 3054 static int verbose_did_open = FALSE; 3055 3056 /* 3057 * Called when 'verbosefile' is set: stop writing to the file. 3058 */ 3059 void 3060 verbose_stop() 3061 { 3062 if (verbose_fd != NULL) 3063 { 3064 fclose(verbose_fd); 3065 verbose_fd = NULL; 3066 } 3067 verbose_did_open = FALSE; 3068 } 3069 3070 /* 3071 * Open the file 'verbosefile'. 3072 * Return FAIL or OK. 3073 */ 3074 int 3075 verbose_open() 3076 { 3077 if (verbose_fd == NULL && !verbose_did_open) 3078 { 3079 /* Only give the error message once. */ 3080 verbose_did_open = TRUE; 3081 3082 verbose_fd = mch_fopen((char *)p_vfile, "a"); 3083 if (verbose_fd == NULL) 3084 { 3085 EMSG2(_(e_notopen), p_vfile); 3086 return FAIL; 3087 } 3088 } 3089 return OK; 3090 } 3091 3092 /* 3093 * Write a string to 'verbosefile'. 3094 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3095 */ 3096 static void 3097 verbose_write(str, maxlen) 3098 char_u *str; 3099 int maxlen; 3100 { 3101 char_u *s = str; 3102 static int cur_col = 0; 3103 3104 /* Open the file when called the first time. */ 3105 if (verbose_fd == NULL) 3106 verbose_open(); 3107 3108 if (verbose_fd != NULL) 3109 { 3110 /* If the string doesn't start with CR or NL, go to msg_col */ 3111 if (*s != '\n' && *s != '\r') 3112 { 3113 while (cur_col < msg_col) 3114 { 3115 fputs(" ", verbose_fd); 3116 ++cur_col; 3117 } 3118 } 3119 3120 /* Adjust the current column */ 3121 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3122 { 3123 putc(*s, verbose_fd); 3124 if (*s == '\r' || *s == '\n') 3125 cur_col = 0; 3126 else if (*s == '\t') 3127 cur_col += (8 - cur_col % 8); 3128 else 3129 ++cur_col; 3130 ++s; 3131 } 3132 } 3133 } 3134 3135 /* 3136 * Give a warning message (for searching). 3137 * Use 'w' highlighting and may repeat the message after redrawing 3138 */ 3139 void 3140 give_warning(message, hl) 3141 char_u *message; 3142 int hl; 3143 { 3144 /* Don't do this for ":silent". */ 3145 if (msg_silent != 0) 3146 return; 3147 3148 /* Don't want a hit-enter prompt here. */ 3149 ++no_wait_return; 3150 3151 #ifdef FEAT_EVAL 3152 set_vim_var_string(VV_WARNINGMSG, message, -1); 3153 #endif 3154 vim_free(keep_msg); 3155 keep_msg = NULL; 3156 if (hl) 3157 keep_msg_attr = hl_attr(HLF_W); 3158 else 3159 keep_msg_attr = 0; 3160 if (msg_attr(message, keep_msg_attr) && msg_scrolled == 0) 3161 set_keep_msg(message); 3162 msg_didout = FALSE; /* overwrite this message */ 3163 msg_nowait = TRUE; /* don't wait for this message */ 3164 msg_col = 0; 3165 3166 --no_wait_return; 3167 } 3168 3169 /* 3170 * Advance msg cursor to column "col". 3171 */ 3172 void 3173 msg_advance(col) 3174 int col; 3175 { 3176 if (msg_silent != 0) /* nothing to advance to */ 3177 { 3178 msg_col = col; /* for redirection, may fill it up later */ 3179 return; 3180 } 3181 if (col >= Columns) /* not enough room */ 3182 col = Columns - 1; 3183 #ifdef FEAT_RIGHTLEFT 3184 if (cmdmsg_rl) 3185 while (msg_col > Columns - col) 3186 msg_putchar(' '); 3187 else 3188 #endif 3189 while (msg_col < col) 3190 msg_putchar(' '); 3191 } 3192 3193 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3194 /* 3195 * Used for "confirm()" function, and the :confirm command prefix. 3196 * Versions which haven't got flexible dialogs yet, and console 3197 * versions, get this generic handler which uses the command line. 3198 * 3199 * type = one of: 3200 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3201 * title = title string (can be NULL for default) 3202 * (neither used in console dialogs at the moment) 3203 * 3204 * Format of the "buttons" string: 3205 * "Button1Name\nButton2Name\nButton3Name" 3206 * The first button should normally be the default/accept 3207 * The second button should be the 'Cancel' button 3208 * Other buttons- use your imagination! 3209 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3210 * different letter. 3211 */ 3212 /* ARGSUSED */ 3213 int 3214 do_dialog(type, title, message, buttons, dfltbutton, textfield) 3215 int type; 3216 char_u *title; 3217 char_u *message; 3218 char_u *buttons; 3219 int dfltbutton; 3220 char_u *textfield; /* IObuff for inputdialog(), NULL otherwise */ 3221 { 3222 int oldState; 3223 int retval = 0; 3224 char_u *hotkeys; 3225 int c; 3226 int i; 3227 3228 #ifndef NO_CONSOLE 3229 /* Don't output anything in silent mode ("ex -s") */ 3230 if (silent_mode) 3231 return dfltbutton; /* return default option */ 3232 #endif 3233 3234 #ifdef FEAT_GUI_DIALOG 3235 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3236 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3237 { 3238 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3239 textfield); 3240 msg_end_prompt(); 3241 3242 /* Flush output to avoid that further messages and redrawing is done 3243 * in the wrong order. */ 3244 out_flush(); 3245 gui_mch_update(); 3246 3247 return c; 3248 } 3249 #endif 3250 3251 oldState = State; 3252 State = CONFIRM; 3253 #ifdef FEAT_MOUSE 3254 setmouse(); 3255 #endif 3256 3257 /* 3258 * Since we wait for a keypress, don't make the 3259 * user press RETURN as well afterwards. 3260 */ 3261 ++no_wait_return; 3262 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3263 3264 if (hotkeys != NULL) 3265 { 3266 for (;;) 3267 { 3268 /* Get a typed character directly from the user. */ 3269 c = get_keystroke(); 3270 switch (c) 3271 { 3272 case CAR: /* User accepts default option */ 3273 case NL: 3274 retval = dfltbutton; 3275 break; 3276 case Ctrl_C: /* User aborts/cancels */ 3277 case ESC: 3278 retval = 0; 3279 break; 3280 default: /* Could be a hotkey? */ 3281 if (c < 0) /* special keys are ignored here */ 3282 continue; 3283 /* Make the character lowercase, as chars in "hotkeys" are. */ 3284 c = MB_TOLOWER(c); 3285 retval = 1; 3286 for (i = 0; hotkeys[i]; ++i) 3287 { 3288 #ifdef FEAT_MBYTE 3289 if (has_mbyte) 3290 { 3291 if ((*mb_ptr2char)(hotkeys + i) == c) 3292 break; 3293 i += (*mb_ptr2len)(hotkeys + i) - 1; 3294 } 3295 else 3296 #endif 3297 if (hotkeys[i] == c) 3298 break; 3299 ++retval; 3300 } 3301 if (hotkeys[i]) 3302 break; 3303 /* No hotkey match, so keep waiting */ 3304 continue; 3305 } 3306 break; 3307 } 3308 3309 vim_free(hotkeys); 3310 } 3311 3312 State = oldState; 3313 #ifdef FEAT_MOUSE 3314 setmouse(); 3315 #endif 3316 --no_wait_return; 3317 msg_end_prompt(); 3318 3319 return retval; 3320 } 3321 3322 static int copy_char __ARGS((char_u *from, char_u *to, int lowercase)); 3323 3324 /* 3325 * Copy one character from "*from" to "*to", taking care of multi-byte 3326 * characters. Return the length of the character in bytes. 3327 */ 3328 static int 3329 copy_char(from, to, lowercase) 3330 char_u *from; 3331 char_u *to; 3332 int lowercase; /* make character lower case */ 3333 { 3334 #ifdef FEAT_MBYTE 3335 int len; 3336 int c; 3337 3338 if (has_mbyte) 3339 { 3340 if (lowercase) 3341 { 3342 c = MB_TOLOWER((*mb_ptr2char)(from)); 3343 return (*mb_char2bytes)(c, to); 3344 } 3345 else 3346 { 3347 len = (*mb_ptr2len)(from); 3348 mch_memmove(to, from, (size_t)len); 3349 return len; 3350 } 3351 } 3352 else 3353 #endif 3354 { 3355 if (lowercase) 3356 *to = (char_u)TOLOWER_LOC(*from); 3357 else 3358 *to = *from; 3359 return 1; 3360 } 3361 } 3362 3363 /* 3364 * Format the dialog string, and display it at the bottom of 3365 * the screen. Return a string of hotkey chars (if defined) for 3366 * each 'button'. If a button has no hotkey defined, the first character of 3367 * the button is used. 3368 * The hotkeys can be multi-byte characters, but without combining chars. 3369 * 3370 * Returns an allocated string with hotkeys, or NULL for error. 3371 */ 3372 static char_u * 3373 msg_show_console_dialog(message, buttons, dfltbutton) 3374 char_u *message; 3375 char_u *buttons; 3376 int dfltbutton; 3377 { 3378 int len = 0; 3379 #ifdef FEAT_MBYTE 3380 # define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3381 #else 3382 # define HOTK_LEN 1 3383 #endif 3384 int lenhotkey = HOTK_LEN; /* count first button */ 3385 char_u *hotk = NULL; 3386 char_u *msgp = NULL; 3387 char_u *hotkp = NULL; 3388 char_u *r; 3389 int copy; 3390 #define HAS_HOTKEY_LEN 30 3391 char_u has_hotkey[HAS_HOTKEY_LEN]; 3392 int first_hotkey = FALSE; /* first char of button is hotkey */ 3393 int idx; 3394 3395 has_hotkey[0] = FALSE; 3396 3397 /* 3398 * First loop: compute the size of memory to allocate. 3399 * Second loop: copy to the allocated memory. 3400 */ 3401 for (copy = 0; copy <= 1; ++copy) 3402 { 3403 r = buttons; 3404 idx = 0; 3405 while (*r) 3406 { 3407 if (*r == DLG_BUTTON_SEP) 3408 { 3409 if (copy) 3410 { 3411 *msgp++ = ','; 3412 *msgp++ = ' '; /* '\n' -> ', ' */ 3413 3414 /* advance to next hotkey and set default hotkey */ 3415 #ifdef FEAT_MBYTE 3416 if (has_mbyte) 3417 hotkp += (*mb_ptr2len)(hotkp); 3418 else 3419 #endif 3420 ++hotkp; 3421 (void)copy_char(r + 1, hotkp, TRUE); 3422 if (dfltbutton) 3423 --dfltbutton; 3424 3425 /* If no hotkey is specified first char is used. */ 3426 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3427 first_hotkey = TRUE; 3428 } 3429 else 3430 { 3431 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3432 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3433 if (idx < HAS_HOTKEY_LEN - 1) 3434 has_hotkey[++idx] = FALSE; 3435 } 3436 } 3437 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3438 { 3439 if (*r == DLG_HOTKEY_CHAR) 3440 ++r; 3441 first_hotkey = FALSE; 3442 if (copy) 3443 { 3444 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3445 *msgp++ = *r; 3446 else 3447 { 3448 /* '&a' -> '[a]' */ 3449 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3450 msgp += copy_char(r, msgp, FALSE); 3451 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3452 3453 /* redefine hotkey */ 3454 (void)copy_char(r, hotkp, TRUE); 3455 } 3456 } 3457 else 3458 { 3459 ++len; /* '&a' -> '[a]' */ 3460 if (idx < HAS_HOTKEY_LEN - 1) 3461 has_hotkey[idx] = TRUE; 3462 } 3463 } 3464 else 3465 { 3466 /* everything else copy literally */ 3467 if (copy) 3468 msgp += copy_char(r, msgp, FALSE); 3469 } 3470 3471 /* advance to the next character */ 3472 mb_ptr_adv(r); 3473 } 3474 3475 if (copy) 3476 { 3477 *msgp++ = ':'; 3478 *msgp++ = ' '; 3479 *msgp = NUL; 3480 mb_ptr_adv(hotkp); 3481 *hotkp = NUL; 3482 } 3483 else 3484 { 3485 len += STRLEN(message) 3486 + 2 /* for the NL's */ 3487 + STRLEN(buttons) 3488 + 3; /* for the ": " and NUL */ 3489 lenhotkey++; /* for the NUL */ 3490 3491 /* If no hotkey is specified first char is used. */ 3492 if (!has_hotkey[0]) 3493 { 3494 first_hotkey = TRUE; 3495 len += 2; /* "x" -> "[x]" */ 3496 } 3497 3498 /* 3499 * Now allocate and load the strings 3500 */ 3501 vim_free(confirm_msg); 3502 confirm_msg = alloc(len); 3503 if (confirm_msg == NULL) 3504 return NULL; 3505 *confirm_msg = NUL; 3506 hotk = alloc(lenhotkey); 3507 if (hotk == NULL) 3508 return NULL; 3509 3510 *confirm_msg = '\n'; 3511 STRCPY(confirm_msg + 1, message); 3512 3513 msgp = confirm_msg + 1 + STRLEN(message); 3514 hotkp = hotk; 3515 3516 /* define first default hotkey */ 3517 (void)copy_char(buttons, hotkp, TRUE); 3518 3519 /* Remember where the choices start, displaying starts here when 3520 * "hotkp" typed at the more prompt. */ 3521 confirm_msg_tail = msgp; 3522 *msgp++ = '\n'; 3523 } 3524 } 3525 3526 display_confirm_msg(); 3527 return hotk; 3528 } 3529 3530 /* 3531 * Display the ":confirm" message. Also called when screen resized. 3532 */ 3533 void 3534 display_confirm_msg() 3535 { 3536 /* avoid that 'q' at the more prompt truncates the message here */ 3537 ++confirm_msg_used; 3538 if (confirm_msg != NULL) 3539 msg_puts_attr(confirm_msg, hl_attr(HLF_M)); 3540 --confirm_msg_used; 3541 } 3542 3543 #endif /* FEAT_CON_DIALOG */ 3544 3545 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3546 3547 int 3548 vim_dialog_yesno(type, title, message, dflt) 3549 int type; 3550 char_u *title; 3551 char_u *message; 3552 int dflt; 3553 { 3554 if (do_dialog(type, 3555 title == NULL ? (char_u *)_("Question") : title, 3556 message, 3557 (char_u *)_("&Yes\n&No"), dflt, NULL) == 1) 3558 return VIM_YES; 3559 return VIM_NO; 3560 } 3561 3562 int 3563 vim_dialog_yesnocancel(type, title, message, dflt) 3564 int type; 3565 char_u *title; 3566 char_u *message; 3567 int dflt; 3568 { 3569 switch (do_dialog(type, 3570 title == NULL ? (char_u *)_("Question") : title, 3571 message, 3572 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL)) 3573 { 3574 case 1: return VIM_YES; 3575 case 2: return VIM_NO; 3576 } 3577 return VIM_CANCEL; 3578 } 3579 3580 int 3581 vim_dialog_yesnoallcancel(type, title, message, dflt) 3582 int type; 3583 char_u *title; 3584 char_u *message; 3585 int dflt; 3586 { 3587 switch (do_dialog(type, 3588 title == NULL ? (char_u *)"Question" : title, 3589 message, 3590 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3591 dflt, NULL)) 3592 { 3593 case 1: return VIM_YES; 3594 case 2: return VIM_NO; 3595 case 3: return VIM_ALL; 3596 case 4: return VIM_DISCARDALL; 3597 } 3598 return VIM_CANCEL; 3599 } 3600 3601 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3602 3603 #if defined(FEAT_BROWSE) || defined(PROTO) 3604 /* 3605 * Generic browse function. Calls gui_mch_browse() when possible. 3606 * Later this may pop-up a non-GUI file selector (external command?). 3607 */ 3608 char_u * 3609 do_browse(flags, title, dflt, ext, initdir, filter, buf) 3610 int flags; /* BROWSE_SAVE and BROWSE_DIR */ 3611 char_u *title; /* title for the window */ 3612 char_u *dflt; /* default file name (may include directory) */ 3613 char_u *ext; /* extension added */ 3614 char_u *initdir; /* initial directory, NULL for current dir or 3615 when using path from "dflt" */ 3616 char_u *filter; /* file name filter */ 3617 buf_T *buf; /* buffer to read/write for */ 3618 { 3619 char_u *fname; 3620 static char_u *last_dir = NULL; /* last used directory */ 3621 char_u *tofree = NULL; 3622 int save_browse = cmdmod.browse; 3623 3624 /* Must turn off browse to avoid that autocommands will get the 3625 * flag too! */ 3626 cmdmod.browse = FALSE; 3627 3628 if (title == NULL || *title == NUL) 3629 { 3630 if (flags & BROWSE_DIR) 3631 title = (char_u *)_("Select Directory dialog"); 3632 else if (flags & BROWSE_SAVE) 3633 title = (char_u *)_("Save File dialog"); 3634 else 3635 title = (char_u *)_("Open File dialog"); 3636 } 3637 3638 /* When no directory specified, use default file name, default dir, buffer 3639 * dir, last dir or current dir */ 3640 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 3641 { 3642 if (mch_isdir(dflt)) /* default file name is a directory */ 3643 { 3644 initdir = dflt; 3645 dflt = NULL; 3646 } 3647 else if (gettail(dflt) != dflt) /* default file name includes a path */ 3648 { 3649 tofree = vim_strsave(dflt); 3650 if (tofree != NULL) 3651 { 3652 initdir = tofree; 3653 *gettail(initdir) = NUL; 3654 dflt = gettail(dflt); 3655 } 3656 } 3657 } 3658 3659 if (initdir == NULL || *initdir == NUL) 3660 { 3661 /* When 'browsedir' is a directory, use it */ 3662 if (STRCMP(p_bsdir, "last") != 0 3663 && STRCMP(p_bsdir, "buffer") != 0 3664 && STRCMP(p_bsdir, "current") != 0 3665 && mch_isdir(p_bsdir)) 3666 initdir = p_bsdir; 3667 /* When saving or 'browsedir' is "buffer", use buffer fname */ 3668 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 3669 && buf != NULL && buf->b_ffname != NULL) 3670 { 3671 if (dflt == NULL || *dflt == NUL) 3672 dflt = gettail(curbuf->b_ffname); 3673 tofree = vim_strsave(curbuf->b_ffname); 3674 if (tofree != NULL) 3675 { 3676 initdir = tofree; 3677 *gettail(initdir) = NUL; 3678 } 3679 } 3680 /* When 'browsedir' is "last", use dir from last browse */ 3681 else if (*p_bsdir == 'l') 3682 initdir = last_dir; 3683 /* When 'browsedir is "current", use current directory. This is the 3684 * default already, leave initdir empty. */ 3685 } 3686 3687 # ifdef FEAT_GUI 3688 if (gui.in_use) /* when this changes, also adjust f_has()! */ 3689 { 3690 if (filter == NULL 3691 # ifdef FEAT_EVAL 3692 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 3693 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 3694 # endif 3695 ) 3696 filter = BROWSE_FILTER_DEFAULT; 3697 if (flags & BROWSE_DIR) 3698 { 3699 # if defined(HAVE_GTK2) || defined(WIN3264) 3700 /* For systems that have a directory dialog. */ 3701 fname = gui_mch_browsedir(title, initdir); 3702 # else 3703 /* Generic solution for selecting a directory: select a file and 3704 * remove the file name. */ 3705 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 3706 # endif 3707 # if !defined(HAVE_GTK2) 3708 /* Win32 adds a dummy file name, others return an arbitrary file 3709 * name. GTK+ 2 returns only the directory, */ 3710 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 3711 { 3712 /* Remove the file name. */ 3713 char_u *tail = gettail_sep(fname); 3714 3715 if (tail == fname) 3716 *tail++ = '.'; /* use current dir */ 3717 *tail = NUL; 3718 } 3719 # endif 3720 } 3721 else 3722 fname = gui_mch_browse(flags & BROWSE_SAVE, 3723 title, dflt, ext, initdir, filter); 3724 3725 /* We hang around in the dialog for a while, the user might do some 3726 * things to our files. The Win32 dialog allows deleting or renaming 3727 * a file, check timestamps. */ 3728 need_check_timestamps = TRUE; 3729 did_check_timestamps = FALSE; 3730 } 3731 else 3732 # endif 3733 { 3734 /* TODO: non-GUI file selector here */ 3735 EMSG(_("E338: Sorry, no file browser in console mode")); 3736 fname = NULL; 3737 } 3738 3739 /* keep the directory for next time */ 3740 if (fname != NULL) 3741 { 3742 vim_free(last_dir); 3743 last_dir = vim_strsave(fname); 3744 if (last_dir != NULL && !(flags & BROWSE_DIR)) 3745 { 3746 *gettail(last_dir) = NUL; 3747 if (*last_dir == NUL) 3748 { 3749 /* filename only returned, must be in current dir */ 3750 vim_free(last_dir); 3751 last_dir = alloc(MAXPATHL); 3752 if (last_dir != NULL) 3753 mch_dirname(last_dir, MAXPATHL); 3754 } 3755 } 3756 } 3757 3758 vim_free(tofree); 3759 cmdmod.browse = save_browse; 3760 3761 return fname; 3762 } 3763 #endif 3764 3765 #if defined(HAVE_STDARG_H) && defined(FEAT_EVAL) 3766 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 3767 3768 static long tv_nr __ARGS((typval_T *tvs, int *idxp)); 3769 static char *tv_str __ARGS((typval_T *tvs, int *idxp)); 3770 3771 /* 3772 * Get number argument from "idxp" entry in "tvs". First entry is 1. 3773 */ 3774 static long 3775 tv_nr(tvs, idxp) 3776 typval_T *tvs; 3777 int *idxp; 3778 { 3779 int idx = *idxp - 1; 3780 long n = 0; 3781 int err = FALSE; 3782 3783 if (tvs[idx].v_type == VAR_UNKNOWN) 3784 EMSG(_(e_printf)); 3785 else 3786 { 3787 ++*idxp; 3788 n = get_tv_number_chk(&tvs[idx], &err); 3789 if (err) 3790 n = 0; 3791 } 3792 return n; 3793 } 3794 3795 /* 3796 * Get string argument from "idxp" entry in "tvs". First entry is 1. 3797 * Returns NULL for an error. 3798 */ 3799 static char * 3800 tv_str(tvs, idxp) 3801 typval_T *tvs; 3802 int *idxp; 3803 { 3804 int idx = *idxp - 1; 3805 char *s = NULL; 3806 3807 if (tvs[idx].v_type == VAR_UNKNOWN) 3808 EMSG(_(e_printf)); 3809 else 3810 { 3811 ++*idxp; 3812 s = (char *)get_tv_string_chk(&tvs[idx]); 3813 } 3814 return s; 3815 } 3816 #endif 3817 3818 /* 3819 * This code was included to provide a portable vsnprintf() and snprintf(). 3820 * Some systems may provide their own, but we always use these for 3821 * consistency. 3822 * 3823 * This code is based on snprintf.c - a portable implementation of snprintf 3824 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 3825 * Included with permission. It was heavely modified to fit in Vim. 3826 * The original code, including useful comments, can be found here: 3827 * http://www.ijs.si/software/snprintf/ 3828 * 3829 * This snprintf() only supports the following conversion specifiers: 3830 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 3831 * with flags: '-', '+', ' ', '0' and '#'. 3832 * An asterisk is supported for field width as well as precision. 3833 * 3834 * Length modifiers 'h' (short int) and 'l' (long int) are supported. 3835 * 'll' (long long int) is not supported. 3836 * 3837 * The locale is not used, the string is used as a byte string. This is only 3838 * relevant for double-byte encodings where the second byte may be '%'. 3839 * 3840 * It is permitted for str_m to be zero, and it is permitted to specify NULL 3841 * pointer for resulting string argument if str_m is zero (as per ISO C99). 3842 * 3843 * The return value is the number of characters which would be generated 3844 * for the given input, excluding the trailing null. If this value 3845 * is greater or equal to str_m, not all characters from the result 3846 * have been stored in str, output bytes beyond the (str_m-1) -th character 3847 * are discarded. If str_m is greater than zero it is guaranteed 3848 * the resulting string will be null-terminated. 3849 */ 3850 3851 /* 3852 * When va_list is not supported we only define vim_snprintf(). 3853 * 3854 * vim_vsnprintf() can be invoked with either "va_list" or a list of 3855 * "typval_T". When the latter is not used it must be NULL. 3856 */ 3857 3858 /* When generating prototypes all of this is skipped, cproto doesn't 3859 * understand this. */ 3860 #ifndef PROTO 3861 # ifdef HAVE_STDARG_H 3862 int 3863 vim_snprintf(char *str, size_t str_m, char *fmt, ...) 3864 { 3865 va_list ap; 3866 int str_l; 3867 3868 va_start(ap, fmt); 3869 str_l = vim_vsnprintf(str, str_m, fmt, ap, NULL); 3870 va_end(ap); 3871 return str_l; 3872 } 3873 3874 int 3875 vim_vsnprintf(str, str_m, fmt, ap, tvs) 3876 # else 3877 /* clumsy way to work around missing va_list */ 3878 # 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) 3879 3880 /* VARARGS */ 3881 int 3882 #ifdef __BORLANDC__ 3883 _RTLENTRYF 3884 #endif 3885 vim_snprintf(str, str_m, fmt, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 3886 # endif 3887 char *str; 3888 size_t str_m; 3889 char *fmt; 3890 # ifdef HAVE_STDARG_H 3891 va_list ap; 3892 typval_T *tvs; 3893 # else 3894 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 3895 # endif 3896 { 3897 size_t str_l = 0; 3898 char *p = fmt; 3899 int arg_idx = 1; 3900 3901 if (p == NULL) 3902 p = ""; 3903 while (*p != NUL) 3904 { 3905 if (*p != '%') 3906 { 3907 char *q = strchr(p + 1, '%'); 3908 size_t n = (q == NULL) ? STRLEN(p) : (q - p); 3909 3910 /* Copy up to the next '%' or NUL without any changes. */ 3911 if (str_l < str_m) 3912 { 3913 size_t avail = str_m - str_l; 3914 3915 mch_memmove(str + str_l, p, n > avail ? avail : n); 3916 } 3917 p += n; 3918 str_l += n; 3919 } 3920 else 3921 { 3922 size_t min_field_width = 0, precision = 0; 3923 int zero_padding = 0, precision_specified = 0, justify_left = 0; 3924 int alternate_form = 0, force_sign = 0; 3925 3926 /* If both the ' ' and '+' flags appear, the ' ' flag should be 3927 * ignored. */ 3928 int space_for_positive = 1; 3929 3930 /* allowed values: \0, h, l, L */ 3931 char length_modifier = '\0'; 3932 3933 /* temporary buffer for simple numeric->string conversion */ 3934 char tmp[32]; 3935 3936 /* string address in case of string argument */ 3937 char *str_arg; 3938 3939 /* natural field width of arg without padding and sign */ 3940 size_t str_arg_l; 3941 3942 /* unsigned char argument value - only defined for c conversion. 3943 * N.B. standard explicitly states the char argument for the c 3944 * conversion is unsigned */ 3945 unsigned char uchar_arg; 3946 3947 /* number of zeros to be inserted for numeric conversions as 3948 * required by the precision or minimal field width */ 3949 size_t number_of_zeros_to_pad = 0; 3950 3951 /* index into tmp where zero padding is to be inserted */ 3952 size_t zero_padding_insertion_ind = 0; 3953 3954 /* current conversion specifier character */ 3955 char fmt_spec = '\0'; 3956 3957 str_arg = NULL; 3958 p++; /* skip '%' */ 3959 3960 /* parse flags */ 3961 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 3962 || *p == '#' || *p == '\'') 3963 { 3964 switch (*p) 3965 { 3966 case '0': zero_padding = 1; break; 3967 case '-': justify_left = 1; break; 3968 case '+': force_sign = 1; space_for_positive = 0; break; 3969 case ' ': force_sign = 1; 3970 /* If both the ' ' and '+' flags appear, the ' ' 3971 * flag should be ignored */ 3972 break; 3973 case '#': alternate_form = 1; break; 3974 case '\'': break; 3975 } 3976 p++; 3977 } 3978 /* If the '0' and '-' flags both appear, the '0' flag should be 3979 * ignored. */ 3980 3981 /* parse field width */ 3982 if (*p == '*') 3983 { 3984 int j; 3985 3986 p++; 3987 j = 3988 #ifndef HAVE_STDARG_H 3989 get_a_arg(arg_idx); 3990 #else 3991 # if defined(FEAT_EVAL) 3992 tvs != NULL ? tv_nr(tvs, &arg_idx) : 3993 # endif 3994 va_arg(ap, int); 3995 #endif 3996 if (j >= 0) 3997 min_field_width = j; 3998 else 3999 { 4000 min_field_width = -j; 4001 justify_left = 1; 4002 } 4003 } 4004 else if (VIM_ISDIGIT((int)(*p))) 4005 { 4006 /* size_t could be wider than unsigned int; make sure we treat 4007 * argument like common implementations do */ 4008 unsigned int uj = *p++ - '0'; 4009 4010 while (VIM_ISDIGIT((int)(*p))) 4011 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4012 min_field_width = uj; 4013 } 4014 4015 /* parse precision */ 4016 if (*p == '.') 4017 { 4018 p++; 4019 precision_specified = 1; 4020 if (*p == '*') 4021 { 4022 int j; 4023 4024 j = 4025 #ifndef HAVE_STDARG_H 4026 get_a_arg(arg_idx); 4027 #else 4028 # if defined(FEAT_EVAL) 4029 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4030 # endif 4031 va_arg(ap, int); 4032 #endif 4033 p++; 4034 if (j >= 0) 4035 precision = j; 4036 else 4037 { 4038 precision_specified = 0; 4039 precision = 0; 4040 } 4041 } 4042 else if (VIM_ISDIGIT((int)(*p))) 4043 { 4044 /* size_t could be wider than unsigned int; make sure we 4045 * treat argument like common implementations do */ 4046 unsigned int uj = *p++ - '0'; 4047 4048 while (VIM_ISDIGIT((int)(*p))) 4049 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4050 precision = uj; 4051 } 4052 } 4053 4054 /* parse 'h', 'l' and 'll' length modifiers */ 4055 if (*p == 'h' || *p == 'l') 4056 { 4057 length_modifier = *p; 4058 p++; 4059 if (length_modifier == 'l' && *p == 'l') 4060 { 4061 /* double l = long long */ 4062 length_modifier = 'l'; /* treat it as a single 'l' */ 4063 p++; 4064 } 4065 } 4066 fmt_spec = *p; 4067 4068 /* common synonyms: */ 4069 switch (fmt_spec) 4070 { 4071 case 'i': fmt_spec = 'd'; break; 4072 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4073 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4074 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4075 default: break; 4076 } 4077 4078 /* get parameter value, do initial processing */ 4079 switch (fmt_spec) 4080 { 4081 /* '%' and 'c' behave similar to 's' regarding flags and field 4082 * widths */ 4083 case '%': 4084 case 'c': 4085 case 's': 4086 length_modifier = '\0'; 4087 zero_padding = 0; /* turn zero padding off for string 4088 conversions */ 4089 str_arg_l = 1; 4090 switch (fmt_spec) 4091 { 4092 case '%': 4093 str_arg = p; 4094 break; 4095 4096 case 'c': 4097 { 4098 int j; 4099 4100 j = 4101 #ifndef HAVE_STDARG_H 4102 get_a_arg(arg_idx); 4103 #else 4104 # if defined(FEAT_EVAL) 4105 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4106 # endif 4107 va_arg(ap, int); 4108 #endif 4109 /* standard demands unsigned char */ 4110 uchar_arg = (unsigned char)j; 4111 str_arg = (char *)&uchar_arg; 4112 break; 4113 } 4114 4115 case 's': 4116 str_arg = 4117 #ifndef HAVE_STDARG_H 4118 (char *)get_a_arg(arg_idx); 4119 #else 4120 # if defined(FEAT_EVAL) 4121 tvs != NULL ? tv_str(tvs, &arg_idx) : 4122 # endif 4123 va_arg(ap, char *); 4124 #endif 4125 if (str_arg == NULL) 4126 { 4127 str_arg = "[NULL]"; 4128 str_arg_l = 6; 4129 } 4130 /* make sure not to address string beyond the specified 4131 * precision !!! */ 4132 else if (!precision_specified) 4133 str_arg_l = strlen(str_arg); 4134 /* truncate string if necessary as requested by precision */ 4135 else if (precision == 0) 4136 str_arg_l = 0; 4137 else 4138 { 4139 /* memchr on HP does not like n > 2^31 !!! */ 4140 char *q = memchr(str_arg, '\0', 4141 precision <= 0x7fffffff ? precision 4142 : 0x7fffffff); 4143 str_arg_l = (q == NULL) ? precision : q - str_arg; 4144 } 4145 break; 4146 4147 default: 4148 break; 4149 } 4150 break; 4151 4152 case 'd': case 'u': case 'o': case 'x': case 'X': case 'p': 4153 { 4154 /* NOTE: the u, o, x, X and p conversion specifiers 4155 * imply the value is unsigned; d implies a signed 4156 * value */ 4157 4158 /* 0 if numeric argument is zero (or if pointer is 4159 * NULL for 'p'), +1 if greater than zero (or nonzero 4160 * for unsigned arguments), -1 if negative (unsigned 4161 * argument is never negative) */ 4162 int arg_sign = 0; 4163 4164 /* only defined for length modifier h, or for no 4165 * length modifiers */ 4166 int int_arg = 0; 4167 unsigned int uint_arg = 0; 4168 4169 /* only defined for length modifier l */ 4170 long int long_arg = 0; 4171 unsigned long int ulong_arg = 0; 4172 4173 /* pointer argument value -only defined for p 4174 * conversion */ 4175 void *ptr_arg = NULL; 4176 4177 if (fmt_spec == 'p') 4178 { 4179 length_modifier = '\0'; 4180 ptr_arg = 4181 #ifndef HAVE_STDARG_H 4182 (void *)get_a_arg(arg_idx); 4183 #else 4184 # if defined(FEAT_EVAL) 4185 tvs != NULL ? (void *)tv_str(tvs, &arg_idx) : 4186 # endif 4187 va_arg(ap, void *); 4188 #endif 4189 if (ptr_arg != NULL) 4190 arg_sign = 1; 4191 } 4192 else if (fmt_spec == 'd') 4193 { 4194 /* signed */ 4195 switch (length_modifier) 4196 { 4197 case '\0': 4198 case 'h': 4199 /* char and short arguments are passed as int. */ 4200 int_arg = 4201 #ifndef HAVE_STDARG_H 4202 get_a_arg(arg_idx); 4203 #else 4204 # if defined(FEAT_EVAL) 4205 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4206 # endif 4207 va_arg(ap, int); 4208 #endif 4209 if (int_arg > 0) 4210 arg_sign = 1; 4211 else if (int_arg < 0) 4212 arg_sign = -1; 4213 break; 4214 case 'l': 4215 long_arg = 4216 #ifndef HAVE_STDARG_H 4217 get_a_arg(arg_idx); 4218 #else 4219 # if defined(FEAT_EVAL) 4220 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4221 # endif 4222 va_arg(ap, long int); 4223 #endif 4224 if (long_arg > 0) 4225 arg_sign = 1; 4226 else if (long_arg < 0) 4227 arg_sign = -1; 4228 break; 4229 } 4230 } 4231 else 4232 { 4233 /* unsigned */ 4234 switch (length_modifier) 4235 { 4236 case '\0': 4237 case 'h': 4238 uint_arg = 4239 #ifndef HAVE_STDARG_H 4240 get_a_arg(arg_idx); 4241 #else 4242 # if defined(FEAT_EVAL) 4243 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4244 # endif 4245 va_arg(ap, unsigned int); 4246 #endif 4247 if (uint_arg != 0) 4248 arg_sign = 1; 4249 break; 4250 case 'l': 4251 ulong_arg = 4252 #ifndef HAVE_STDARG_H 4253 get_a_arg(arg_idx); 4254 #else 4255 # if defined(FEAT_EVAL) 4256 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4257 # endif 4258 va_arg(ap, unsigned long int); 4259 #endif 4260 if (ulong_arg != 0) 4261 arg_sign = 1; 4262 break; 4263 } 4264 } 4265 4266 str_arg = tmp; 4267 str_arg_l = 0; 4268 4269 /* NOTE: 4270 * For d, i, u, o, x, and X conversions, if precision is 4271 * specified, the '0' flag should be ignored. This is so 4272 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4273 * FreeBSD, NetBSD; but not with Perl. 4274 */ 4275 if (precision_specified) 4276 zero_padding = 0; 4277 if (fmt_spec == 'd') 4278 { 4279 if (force_sign && arg_sign >= 0) 4280 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4281 /* leave negative numbers for sprintf to handle, to 4282 * avoid handling tricky cases like (short int)-32768 */ 4283 } 4284 else if (alternate_form) 4285 { 4286 if (arg_sign != 0 4287 && (fmt_spec == 'x' || fmt_spec == 'X') ) 4288 { 4289 tmp[str_arg_l++] = '0'; 4290 tmp[str_arg_l++] = fmt_spec; 4291 } 4292 /* alternate form should have no effect for p 4293 * conversion, but ... */ 4294 } 4295 4296 zero_padding_insertion_ind = str_arg_l; 4297 if (!precision_specified) 4298 precision = 1; /* default precision is 1 */ 4299 if (precision == 0 && arg_sign == 0) 4300 { 4301 /* When zero value is formatted with an explicit 4302 * precision 0, the resulting formatted string is 4303 * empty (d, i, u, o, x, X, p). */ 4304 } 4305 else 4306 { 4307 char f[5]; 4308 int f_l = 0; 4309 4310 /* construct a simple format string for sprintf */ 4311 f[f_l++] = '%'; 4312 if (!length_modifier) 4313 ; 4314 else if (length_modifier == '2') 4315 { 4316 f[f_l++] = 'l'; 4317 f[f_l++] = 'l'; 4318 } 4319 else 4320 f[f_l++] = length_modifier; 4321 f[f_l++] = fmt_spec; 4322 f[f_l++] = '\0'; 4323 4324 if (fmt_spec == 'p') 4325 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4326 else if (fmt_spec == 'd') 4327 { 4328 /* signed */ 4329 switch (length_modifier) 4330 { 4331 case '\0': 4332 case 'h': str_arg_l += sprintf( 4333 tmp + str_arg_l, f, int_arg); 4334 break; 4335 case 'l': str_arg_l += sprintf( 4336 tmp + str_arg_l, f, long_arg); 4337 break; 4338 } 4339 } 4340 else 4341 { 4342 /* unsigned */ 4343 switch (length_modifier) 4344 { 4345 case '\0': 4346 case 'h': str_arg_l += sprintf( 4347 tmp + str_arg_l, f, uint_arg); 4348 break; 4349 case 'l': str_arg_l += sprintf( 4350 tmp + str_arg_l, f, ulong_arg); 4351 break; 4352 } 4353 } 4354 4355 /* include the optional minus sign and possible 4356 * "0x" in the region before the zero padding 4357 * insertion point */ 4358 if (zero_padding_insertion_ind < str_arg_l 4359 && tmp[zero_padding_insertion_ind] == '-') 4360 zero_padding_insertion_ind++; 4361 if (zero_padding_insertion_ind + 1 < str_arg_l 4362 && tmp[zero_padding_insertion_ind] == '0' 4363 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4364 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4365 zero_padding_insertion_ind += 2; 4366 } 4367 4368 { 4369 size_t num_of_digits = str_arg_l 4370 - zero_padding_insertion_ind; 4371 4372 if (alternate_form && fmt_spec == 'o' 4373 /* unless zero is already the first 4374 * character */ 4375 && !(zero_padding_insertion_ind < str_arg_l 4376 && tmp[zero_padding_insertion_ind] == '0')) 4377 { 4378 /* assure leading zero for alternate-form 4379 * octal numbers */ 4380 if (!precision_specified 4381 || precision < num_of_digits + 1) 4382 { 4383 /* precision is increased to force the 4384 * first character to be zero, except if a 4385 * zero value is formatted with an 4386 * explicit precision of zero */ 4387 precision = num_of_digits + 1; 4388 precision_specified = 1; 4389 } 4390 } 4391 /* zero padding to specified precision? */ 4392 if (num_of_digits < precision) 4393 number_of_zeros_to_pad = precision - num_of_digits; 4394 } 4395 /* zero padding to specified minimal field width? */ 4396 if (!justify_left && zero_padding) 4397 { 4398 int n = min_field_width - (str_arg_l 4399 + number_of_zeros_to_pad); 4400 if (n > 0) 4401 number_of_zeros_to_pad += n; 4402 } 4403 break; 4404 } 4405 4406 default: 4407 /* unrecognized conversion specifier, keep format string 4408 * as-is */ 4409 zero_padding = 0; /* turn zero padding off for non-numeric 4410 convers. */ 4411 justify_left = 1; 4412 min_field_width = 0; /* reset flags */ 4413 4414 /* discard the unrecognized conversion, just keep * 4415 * the unrecognized conversion character */ 4416 str_arg = p; 4417 str_arg_l = 0; 4418 if (*p != NUL) 4419 str_arg_l++; /* include invalid conversion specifier 4420 unchanged if not at end-of-string */ 4421 break; 4422 } 4423 4424 if (*p != NUL) 4425 p++; /* step over the just processed conversion specifier */ 4426 4427 /* insert padding to the left as requested by min_field_width; 4428 * this does not include the zero padding in case of numerical 4429 * conversions*/ 4430 if (!justify_left) 4431 { 4432 /* left padding with blank or zero */ 4433 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4434 4435 if (pn > 0) 4436 { 4437 if (str_l < str_m) 4438 { 4439 size_t avail = str_m - str_l; 4440 4441 vim_memset(str + str_l, zero_padding ? '0' : ' ', 4442 (size_t)pn > avail ? avail : pn); 4443 } 4444 str_l += pn; 4445 } 4446 } 4447 4448 /* zero padding as requested by the precision or by the minimal 4449 * field width for numeric conversions required? */ 4450 if (number_of_zeros_to_pad == 0) 4451 { 4452 /* will not copy first part of numeric right now, * 4453 * force it to be copied later in its entirety */ 4454 zero_padding_insertion_ind = 0; 4455 } 4456 else 4457 { 4458 /* insert first part of numerics (sign or '0x') before zero 4459 * padding */ 4460 int zn = zero_padding_insertion_ind; 4461 4462 if (zn > 0) 4463 { 4464 if (str_l < str_m) 4465 { 4466 size_t avail = str_m - str_l; 4467 4468 mch_memmove(str + str_l, str_arg, 4469 (size_t)zn > avail ? avail : zn); 4470 } 4471 str_l += zn; 4472 } 4473 4474 /* insert zero padding as requested by the precision or min 4475 * field width */ 4476 zn = number_of_zeros_to_pad; 4477 if (zn > 0) 4478 { 4479 if (str_l < str_m) 4480 { 4481 size_t avail = str_m-str_l; 4482 4483 vim_memset(str + str_l, '0', 4484 (size_t)zn > avail ? avail : zn); 4485 } 4486 str_l += zn; 4487 } 4488 } 4489 4490 /* insert formatted string 4491 * (or as-is conversion specifier for unknown conversions) */ 4492 { 4493 int sn = str_arg_l - zero_padding_insertion_ind; 4494 4495 if (sn > 0) 4496 { 4497 if (str_l < str_m) 4498 { 4499 size_t avail = str_m - str_l; 4500 4501 mch_memmove(str + str_l, 4502 str_arg + zero_padding_insertion_ind, 4503 (size_t)sn > avail ? avail : sn); 4504 } 4505 str_l += sn; 4506 } 4507 } 4508 4509 /* insert right padding */ 4510 if (justify_left) 4511 { 4512 /* right blank padding to the field width */ 4513 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4514 4515 if (pn > 0) 4516 { 4517 if (str_l < str_m) 4518 { 4519 size_t avail = str_m - str_l; 4520 4521 vim_memset(str + str_l, ' ', 4522 (size_t)pn > avail ? avail : pn); 4523 } 4524 str_l += pn; 4525 } 4526 } 4527 } 4528 } 4529 4530 if (str_m > 0) 4531 { 4532 /* make sure the string is nul-terminated even at the expense of 4533 * overwriting the last character (shouldn't happen, but just in case) 4534 * */ 4535 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 4536 } 4537 4538 #ifdef HAVE_STDARG_H 4539 if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 4540 EMSG(_("E767: Too many arguments to printf()")); 4541 #endif 4542 4543 /* Return the number of characters formatted (excluding trailing nul 4544 * character), that is, the number of characters that would have been 4545 * written to the buffer if it were large enough. */ 4546 return (int)str_l; 4547 } 4548 4549 #endif /* PROTO */ 4550