1 /* vi:set ts=8 sts=4 sw=4 noet: 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 #define USING_FLOAT_STUFF 16 17 #include "vim.h" 18 19 static void add_msg_hist(char_u *s, int len, int attr); 20 static void hit_return_msg(void); 21 static void msg_home_replace_attr(char_u *fname, int attr); 22 static void msg_puts_attr_len(char *str, int maxlen, int attr); 23 static void msg_puts_display(char_u *str, int maxlen, int attr, int recurse); 24 static void msg_scroll_up(void); 25 static void inc_msg_scrolled(void); 26 static void store_sb_text(char_u **sb_str, char_u *s, int attr, int *sb_col, int finish); 27 static void t_puts(int *t_col, char_u *t_s, char_u *s, int attr); 28 static void msg_puts_printf(char_u *str, int maxlen); 29 static int do_more_prompt(int typed_char); 30 static void msg_screen_putchar(int c, int attr); 31 static void msg_moremsg(int full); 32 static int msg_check_screen(void); 33 static void redir_write(char_u *s, int maxlen); 34 #ifdef FEAT_CON_DIALOG 35 static char_u *msg_show_console_dialog(char_u *message, char_u *buttons, int dfltbutton); 36 static int confirm_msg_used = FALSE; // displaying confirm_msg 37 static char_u *confirm_msg = NULL; // ":confirm" message 38 static char_u *confirm_msg_tail; // tail of confirm_msg 39 static void display_confirm_msg(void); 40 #endif 41 #ifdef FEAT_JOB_CHANNEL 42 static int emsg_to_channel_log = FALSE; 43 #endif 44 45 struct msg_hist 46 { 47 struct msg_hist *next; 48 char_u *msg; 49 int attr; 50 }; 51 52 static struct msg_hist *first_msg_hist = NULL; 53 static struct msg_hist *last_msg_hist = NULL; 54 static int msg_hist_len = 0; 55 56 static FILE *verbose_fd = NULL; 57 static int verbose_did_open = FALSE; 58 59 /* 60 * When writing messages to the screen, there are many different situations. 61 * A number of variables is used to remember the current state: 62 * msg_didany TRUE when messages were written since the last time the 63 * user reacted to a prompt. 64 * Reset: After hitting a key for the hit-return prompt, 65 * hitting <CR> for the command line or input(). 66 * Set: When any message is written to the screen. 67 * msg_didout TRUE when something was written to the current line. 68 * Reset: When advancing to the next line, when the current 69 * text can be overwritten. 70 * Set: When any message is written to the screen. 71 * msg_nowait No extra delay for the last drawn message. 72 * Used in normal_cmd() before the mode message is drawn. 73 * emsg_on_display There was an error message recently. Indicates that there 74 * should be a delay before redrawing. 75 * msg_scroll The next message should not overwrite the current one. 76 * msg_scrolled How many lines the screen has been scrolled (because of 77 * messages). Used in update_screen() to scroll the screen 78 * back. Incremented each time the screen scrolls a line. 79 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 80 * writes something without scrolling should not make 81 * need_wait_return to be set. This is a hack to make ":ts" 82 * work without an extra prompt. 83 * lines_left Number of lines available for messages before the 84 * more-prompt is to be given. -1 when not set. 85 * need_wait_return TRUE when the hit-return prompt is needed. 86 * Reset: After giving the hit-return prompt, when the user 87 * has answered some other prompt. 88 * Set: When the ruler or typeahead display is overwritten, 89 * scrolling the screen for some message. 90 * keep_msg Message to be displayed after redrawing the screen, in 91 * main_loop(). 92 * This is an allocated string or NULL when not used. 93 */ 94 95 /* 96 * msg(s) - displays the string 's' on the status line 97 * When terminal not initialized (yet) mch_errmsg(..) is used. 98 * return TRUE if wait_return not called 99 */ 100 int 101 msg(char *s) 102 { 103 return msg_attr_keep(s, 0, FALSE); 104 } 105 106 /* 107 * Like msg() but keep it silent when 'verbosefile' is set. 108 */ 109 int 110 verb_msg(char *s) 111 { 112 int n; 113 114 verbose_enter(); 115 n = msg_attr_keep(s, 0, FALSE); 116 verbose_leave(); 117 118 return n; 119 } 120 121 int 122 msg_attr(char *s, int attr) 123 { 124 return msg_attr_keep(s, attr, FALSE); 125 } 126 127 int 128 msg_attr_keep( 129 char *s, 130 int attr, 131 int keep) // TRUE: set keep_msg if it doesn't scroll 132 { 133 static int entered = 0; 134 int retval; 135 char_u *buf = NULL; 136 137 // Skip messages not matching ":filter pattern". 138 // Don't filter when there is an error. 139 if (!emsg_on_display && message_filtered((char_u *)s)) 140 return TRUE; 141 142 #ifdef FEAT_EVAL 143 if (attr == 0) 144 set_vim_var_string(VV_STATUSMSG, (char_u *)s, -1); 145 #endif 146 147 /* 148 * It is possible that displaying a messages causes a problem (e.g., 149 * when redrawing the window), which causes another message, etc.. To 150 * break this loop, limit the recursiveness to 3 levels. 151 */ 152 if (entered >= 3) 153 return TRUE; 154 ++entered; 155 156 // Add message to history (unless it's a repeated kept message or a 157 // truncated message) 158 if ((char_u *)s != keep_msg 159 || (*s != '<' 160 && last_msg_hist != NULL 161 && last_msg_hist->msg != NULL 162 && STRCMP(s, last_msg_hist->msg))) 163 add_msg_hist((char_u *)s, -1, attr); 164 165 #ifdef FEAT_JOB_CHANNEL 166 if (emsg_to_channel_log) 167 // Write message in the channel log. 168 ch_log(NULL, "ERROR: %s", (char *)s); 169 #endif 170 171 // Truncate the message if needed. 172 msg_start(); 173 buf = msg_strtrunc((char_u *)s, FALSE); 174 if (buf != NULL) 175 s = (char *)buf; 176 177 msg_outtrans_attr((char_u *)s, attr); 178 msg_clr_eos(); 179 retval = msg_end(); 180 181 if (keep && retval && vim_strsize((char_u *)s) 182 < (int)(Rows - cmdline_row - 1) * Columns + sc_col) 183 set_keep_msg((char_u *)s, 0); 184 185 vim_free(buf); 186 --entered; 187 return retval; 188 } 189 190 /* 191 * Truncate a string such that it can be printed without causing a scroll. 192 * Returns an allocated string or NULL when no truncating is done. 193 */ 194 char_u * 195 msg_strtrunc( 196 char_u *s, 197 int force) // always truncate 198 { 199 char_u *buf = NULL; 200 int len; 201 int room; 202 203 // May truncate message to avoid a hit-return prompt 204 if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 205 && !exmode_active && msg_silent == 0) || force) 206 { 207 len = vim_strsize(s); 208 if (msg_scrolled != 0) 209 // Use all the columns. 210 room = (int)(Rows - msg_row) * Columns - 1; 211 else 212 // Use up to 'showcmd' column. 213 room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1; 214 if (len > room && room > 0) 215 { 216 if (enc_utf8) 217 // may have up to 18 bytes per cell (6 per char, up to two 218 // composing chars) 219 len = (room + 2) * 18; 220 else if (enc_dbcs == DBCS_JPNU) 221 // may have up to 2 bytes per cell for euc-jp 222 len = (room + 2) * 2; 223 else 224 len = room + 2; 225 buf = alloc(len); 226 if (buf != NULL) 227 trunc_string(s, buf, room, len); 228 } 229 } 230 return buf; 231 } 232 233 /* 234 * Truncate a string "s" to "buf" with cell width "room". 235 * "s" and "buf" may be equal. 236 */ 237 void 238 trunc_string( 239 char_u *s, 240 char_u *buf, 241 int room_in, 242 int buflen) 243 { 244 size_t room = room_in - 3; // "..." takes 3 chars 245 size_t half; 246 size_t len = 0; 247 int e; 248 int i; 249 int n; 250 251 if (room_in < 3) 252 room = 0; 253 half = room / 2; 254 255 // First part: Start of the string. 256 for (e = 0; len < half && e < buflen; ++e) 257 { 258 if (s[e] == NUL) 259 { 260 // text fits without truncating! 261 buf[e] = NUL; 262 return; 263 } 264 n = ptr2cells(s + e); 265 if (len + n > half) 266 break; 267 len += n; 268 buf[e] = s[e]; 269 if (has_mbyte) 270 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 271 { 272 if (++e == buflen) 273 break; 274 buf[e] = s[e]; 275 } 276 } 277 278 // Last part: End of the string. 279 i = e; 280 if (enc_dbcs != 0) 281 { 282 // For DBCS going backwards in a string is slow, but 283 // computing the cell width isn't too slow: go forward 284 // until the rest fits. 285 n = vim_strsize(s + i); 286 while (len + n > room) 287 { 288 n -= ptr2cells(s + i); 289 i += (*mb_ptr2len)(s + i); 290 } 291 } 292 else if (enc_utf8) 293 { 294 // For UTF-8 we can go backwards easily. 295 half = i = (int)STRLEN(s); 296 for (;;) 297 { 298 do 299 half = half - utf_head_off(s, s + half - 1) - 1; 300 while (half > 0 && utf_iscomposing(utf_ptr2char(s + half))); 301 n = ptr2cells(s + half); 302 if (len + n > room || half == 0) 303 break; 304 len += n; 305 i = (int)half; 306 } 307 } 308 else 309 { 310 for (i = (int)STRLEN(s); 311 i - 1 >= 0 && len + (n = ptr2cells(s + i - 1)) <= room; --i) 312 len += n; 313 } 314 315 316 if (i <= e + 3) 317 { 318 // text fits without truncating 319 if (s != buf) 320 { 321 len = STRLEN(s); 322 if (len >= (size_t)buflen) 323 len = buflen - 1; 324 len = len - e + 1; 325 if (len < 1) 326 buf[e - 1] = NUL; 327 else 328 mch_memmove(buf + e, s + e, len); 329 } 330 } 331 else if (e + 3 < buflen) 332 { 333 // set the middle and copy the last part 334 mch_memmove(buf + e, "...", (size_t)3); 335 len = STRLEN(s + i) + 1; 336 if (len >= (size_t)buflen - e - 3) 337 len = buflen - e - 3 - 1; 338 mch_memmove(buf + e + 3, s + i, len); 339 buf[e + 3 + len - 1] = NUL; 340 } 341 else 342 { 343 // can't fit in the "...", just truncate it 344 buf[e - 1] = NUL; 345 } 346 } 347 348 /* 349 * Automatic prototype generation does not understand this function. 350 * Note: Caller of smsg() and smsg_attr() must check the resulting string is 351 * shorter than IOSIZE!!! 352 */ 353 #ifndef PROTO 354 355 int vim_snprintf(char *str, size_t str_m, const char *fmt, ...); 356 357 int 358 smsg(const char *s, ...) 359 { 360 if (IObuff == NULL) 361 { 362 // Very early in initialisation and already something wrong, just 363 // give the raw message so the user at least gets a hint. 364 return msg((char *)s); 365 } 366 else 367 { 368 va_list arglist; 369 370 va_start(arglist, s); 371 vim_vsnprintf((char *)IObuff, IOSIZE, s, arglist); 372 va_end(arglist); 373 return msg((char *)IObuff); 374 } 375 } 376 377 int 378 smsg_attr(int attr, const char *s, ...) 379 { 380 if (IObuff == NULL) 381 { 382 // Very early in initialisation and already something wrong, just 383 // give the raw message so the user at least gets a hint. 384 return msg_attr((char *)s, attr); 385 } 386 else 387 { 388 va_list arglist; 389 390 va_start(arglist, s); 391 vim_vsnprintf((char *)IObuff, IOSIZE, s, arglist); 392 va_end(arglist); 393 return msg_attr((char *)IObuff, attr); 394 } 395 } 396 397 int 398 smsg_attr_keep(int attr, const char *s, ...) 399 { 400 if (IObuff == NULL) 401 { 402 // Very early in initialisation and already something wrong, just 403 // give the raw message so the user at least gets a hint. 404 return msg_attr_keep((char *)s, attr, TRUE); 405 } 406 else 407 { 408 va_list arglist; 409 410 va_start(arglist, s); 411 vim_vsnprintf((char *)IObuff, IOSIZE, s, arglist); 412 va_end(arglist); 413 return msg_attr_keep((char *)IObuff, attr, TRUE); 414 } 415 } 416 417 #endif 418 419 /* 420 * Remember the last sourcing name/lnum used in an error message, so that it 421 * isn't printed each time when it didn't change. 422 */ 423 static int last_sourcing_lnum = 0; 424 static char_u *last_sourcing_name = NULL; 425 426 /* 427 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 428 * for the next error message; 429 */ 430 void 431 reset_last_sourcing(void) 432 { 433 VIM_CLEAR(last_sourcing_name); 434 last_sourcing_lnum = 0; 435 } 436 437 /* 438 * Return TRUE if "SOURCING_NAME" differs from "last_sourcing_name". 439 */ 440 static int 441 other_sourcing_name(void) 442 { 443 if (SOURCING_NAME != NULL) 444 { 445 if (last_sourcing_name != NULL) 446 return STRCMP(SOURCING_NAME, last_sourcing_name) != 0; 447 return TRUE; 448 } 449 return FALSE; 450 } 451 452 /* 453 * Get the message about the source, as used for an error message. 454 * Returns an allocated string with room for one more character. 455 * Returns NULL when no message is to be given. 456 */ 457 static char_u * 458 get_emsg_source(void) 459 { 460 char_u *Buf, *p; 461 462 if (SOURCING_NAME != NULL && other_sourcing_name()) 463 { 464 char_u *sname = estack_sfile(); 465 char_u *tofree = sname; 466 467 if (sname == NULL) 468 sname = SOURCING_NAME; 469 470 p = (char_u *)_("Error detected while processing %s:"); 471 Buf = alloc(STRLEN(sname) + STRLEN(p)); 472 if (Buf != NULL) 473 sprintf((char *)Buf, (char *)p, sname); 474 vim_free(tofree); 475 return Buf; 476 } 477 return NULL; 478 } 479 480 /* 481 * Get the message about the source lnum, as used for an error message. 482 * Returns an allocated string with room for one more character. 483 * Returns NULL when no message is to be given. 484 */ 485 static char_u * 486 get_emsg_lnum(void) 487 { 488 char_u *Buf, *p; 489 490 // lnum is 0 when executing a command from the command line 491 // argument, we don't want a line number then 492 if (SOURCING_NAME != NULL 493 && (other_sourcing_name() || SOURCING_LNUM != last_sourcing_lnum) 494 && SOURCING_LNUM != 0) 495 { 496 p = (char_u *)_("line %4ld:"); 497 Buf = alloc(STRLEN(p) + 20); 498 if (Buf != NULL) 499 sprintf((char *)Buf, (char *)p, (long)SOURCING_LNUM); 500 return Buf; 501 } 502 return NULL; 503 } 504 505 /* 506 * Display name and line number for the source of an error. 507 * Remember the file name and line number, so that for the next error the info 508 * is only displayed if it changed. 509 */ 510 void 511 msg_source(int attr) 512 { 513 char_u *p; 514 515 ++no_wait_return; 516 p = get_emsg_source(); 517 if (p != NULL) 518 { 519 msg_attr((char *)p, attr); 520 vim_free(p); 521 } 522 p = get_emsg_lnum(); 523 if (p != NULL) 524 { 525 msg_attr((char *)p, HL_ATTR(HLF_N)); 526 vim_free(p); 527 last_sourcing_lnum = SOURCING_LNUM; // only once for each line 528 } 529 530 // remember the last sourcing name printed, also when it's empty 531 if (SOURCING_NAME == NULL || other_sourcing_name()) 532 { 533 vim_free(last_sourcing_name); 534 if (SOURCING_NAME == NULL) 535 last_sourcing_name = NULL; 536 else 537 last_sourcing_name = vim_strsave(SOURCING_NAME); 538 } 539 --no_wait_return; 540 } 541 542 /* 543 * Return TRUE if not giving error messages right now: 544 * If "emsg_off" is set: no error messages at the moment. 545 * If "msg" is in 'debug': do error message but without side effects. 546 * If "emsg_skip" is set: never do error messages. 547 */ 548 static int 549 emsg_not_now(void) 550 { 551 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL 552 && vim_strchr(p_debug, 't') == NULL) 553 #ifdef FEAT_EVAL 554 || emsg_skip > 0 555 #endif 556 ) 557 return TRUE; 558 return FALSE; 559 } 560 561 #if defined(FEAT_EVAL) || defined(PROTO) 562 static garray_T ignore_error_list = GA_EMPTY; 563 564 void 565 ignore_error_for_testing(char_u *error) 566 { 567 if (ignore_error_list.ga_itemsize == 0) 568 ga_init2(&ignore_error_list, sizeof(char_u *), 1); 569 570 if (STRCMP("RESET", error) == 0) 571 ga_clear_strings(&ignore_error_list); 572 else 573 ga_add_string(&ignore_error_list, error); 574 } 575 576 static int 577 ignore_error(char_u *msg) 578 { 579 int i; 580 581 for (i = 0; i < ignore_error_list.ga_len; ++i) 582 if (strstr((char *)msg, 583 (char *)((char_u **)(ignore_error_list.ga_data))[i]) != NULL) 584 return TRUE; 585 return FALSE; 586 } 587 #endif 588 589 #if !defined(HAVE_STRERROR) || defined(PROTO) 590 /* 591 * Replacement for perror() that behaves more or less like emsg() was called. 592 * v:errmsg will be set and called_emsg will be incremented. 593 */ 594 void 595 do_perror(char *msg) 596 { 597 perror(msg); 598 ++emsg_silent; 599 emsg(msg); 600 --emsg_silent; 601 } 602 #endif 603 604 /* 605 * emsg_core() - display an error message 606 * 607 * Rings the bell, if appropriate, and calls message() to do the real work 608 * When terminal not initialized (yet) mch_errmsg(..) is used. 609 * 610 * Return TRUE if wait_return not called. 611 * Note: caller must check 'emsg_not_now()' before calling this. 612 */ 613 static int 614 emsg_core(char_u *s) 615 { 616 int attr; 617 char_u *p; 618 int r; 619 #ifdef FEAT_EVAL 620 int ignore = FALSE; 621 int severe; 622 #endif 623 624 #ifdef FEAT_EVAL 625 // When testing some errors are turned into a normal message. 626 if (ignore_error(s)) 627 // don't call msg() if it results in a dialog 628 return msg_use_printf() ? FALSE : msg((char *)s); 629 #endif 630 631 ++called_emsg; 632 633 #ifdef FEAT_EVAL 634 // If "emsg_severe" is TRUE: When an error exception is to be thrown, 635 // prefer this message over previous messages for the same command. 636 severe = emsg_severe; 637 emsg_severe = FALSE; 638 #endif 639 640 if (!emsg_off || vim_strchr(p_debug, 't') != NULL) 641 { 642 #ifdef FEAT_EVAL 643 /* 644 * Cause a throw of an error exception if appropriate. Don't display 645 * the error message in this case. (If no matching catch clause will 646 * be found, the message will be displayed later on.) "ignore" is set 647 * when the message should be ignored completely (used for the 648 * interrupt message). 649 */ 650 if (cause_errthrow(s, severe, &ignore) == TRUE) 651 { 652 if (!ignore) 653 ++did_emsg; 654 return TRUE; 655 } 656 657 // set "v:errmsg", also when using ":silent! cmd" 658 set_vim_var_string(VV_ERRMSG, s, -1); 659 #endif 660 661 /* 662 * When using ":silent! cmd" ignore error messages. 663 * But do write it to the redirection file. 664 */ 665 if (emsg_silent != 0) 666 { 667 if (emsg_noredir == 0) 668 { 669 msg_start(); 670 p = get_emsg_source(); 671 if (p != NULL) 672 { 673 STRCAT(p, "\n"); 674 redir_write(p, -1); 675 vim_free(p); 676 } 677 p = get_emsg_lnum(); 678 if (p != NULL) 679 { 680 STRCAT(p, "\n"); 681 redir_write(p, -1); 682 vim_free(p); 683 } 684 redir_write(s, -1); 685 } 686 #ifdef FEAT_JOB_CHANNEL 687 ch_log(NULL, "ERROR silent: %s", (char *)s); 688 #endif 689 return TRUE; 690 } 691 692 ex_exitval = 1; 693 694 // Reset msg_silent, an error causes messages to be switched back on. 695 msg_silent = 0; 696 cmd_silent = FALSE; 697 698 if (global_busy) // break :global command 699 ++global_busy; 700 701 if (p_eb) 702 beep_flush(); // also includes flush_buffers() 703 else 704 flush_buffers(FLUSH_MINIMAL); // flush internal buffers 705 ++did_emsg; // flag for DoOneCmd() 706 #ifdef FEAT_EVAL 707 did_uncaught_emsg = TRUE; 708 #endif 709 } 710 711 emsg_on_display = TRUE; // remember there is an error message 712 ++msg_scroll; // don't overwrite a previous message 713 attr = HL_ATTR(HLF_E); // set highlight mode for error messages 714 if (msg_scrolled != 0) 715 need_wait_return = TRUE; // needed in case emsg() is called after 716 // wait_return has reset need_wait_return 717 // and a redraw is expected because 718 // msg_scrolled is non-zero 719 720 #ifdef FEAT_JOB_CHANNEL 721 emsg_to_channel_log = TRUE; 722 #endif 723 /* 724 * Display name and line number for the source of the error. 725 */ 726 msg_source(attr); 727 728 /* 729 * Display the error message itself. 730 */ 731 msg_nowait = FALSE; // wait for this msg 732 r = msg_attr((char *)s, attr); 733 734 #ifdef FEAT_JOB_CHANNEL 735 emsg_to_channel_log = FALSE; 736 #endif 737 return r; 738 } 739 740 /* 741 * Print an error message. 742 */ 743 int 744 emsg(char *s) 745 { 746 // Skip this if not giving error messages at the moment. 747 if (!emsg_not_now()) 748 return emsg_core((char_u *)s); 749 return TRUE; // no error messages at the moment 750 } 751 752 #ifndef PROTO // manual proto with __attribute__ 753 /* 754 * Print an error message with format string and variable arguments. 755 * Note: caller must not pass 'IObuff' as 1st argument. 756 */ 757 int 758 semsg(const char *s, ...) 759 { 760 // Skip this if not giving error messages at the moment. 761 if (!emsg_not_now()) 762 { 763 if (IObuff == NULL) 764 { 765 // Very early in initialisation and already something wrong, just 766 // give the raw message so the user at least gets a hint. 767 return emsg_core((char_u *)s); 768 } 769 else 770 { 771 va_list ap; 772 773 va_start(ap, s); 774 vim_vsnprintf((char *)IObuff, IOSIZE, s, ap); 775 va_end(ap); 776 return emsg_core(IObuff); 777 } 778 } 779 return TRUE; // no error messages at the moment 780 } 781 #endif 782 783 /* 784 * Same as emsg(...), but abort on error when ABORT_ON_INTERNAL_ERROR is 785 * defined. It is used for internal errors only, so that they can be 786 * detected when fuzzing vim. 787 */ 788 void 789 iemsg(char *s) 790 { 791 if (!emsg_not_now()) 792 emsg_core((char_u *)s); 793 #ifdef ABORT_ON_INTERNAL_ERROR 794 abort(); 795 #endif 796 } 797 798 #ifndef PROTO // manual proto with __attribute__ 799 /* 800 * Same as semsg(...) but abort on error when ABORT_ON_INTERNAL_ERROR is 801 * defined. It is used for internal errors only, so that they can be 802 * detected when fuzzing vim. 803 * Note: caller must not pass 'IObuff' as 1st argument. 804 */ 805 void 806 siemsg(const char *s, ...) 807 { 808 if (!emsg_not_now()) 809 { 810 if (IObuff == NULL) 811 { 812 // Very early in initialisation and already something wrong, just 813 // give the raw message so the user at least gets a hint. 814 emsg_core((char_u *)s); 815 } 816 else 817 { 818 va_list ap; 819 820 va_start(ap, s); 821 vim_vsnprintf((char *)IObuff, IOSIZE, s, ap); 822 va_end(ap); 823 emsg_core(IObuff); 824 } 825 } 826 # ifdef ABORT_ON_INTERNAL_ERROR 827 abort(); 828 # endif 829 } 830 #endif 831 832 /* 833 * Give an "Internal error" message. 834 */ 835 void 836 internal_error(char *where) 837 { 838 siemsg(_(e_intern2), where); 839 } 840 841 /* 842 * Like internal_error() but do not call abort(), to avoid tests using 843 * test_unknown() and test_void() causing Vim to exit. 844 */ 845 void 846 internal_error_no_abort(char *where) 847 { 848 semsg(_(e_intern2), where); 849 } 850 851 // emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. 852 853 void 854 emsg_invreg(int name) 855 { 856 semsg(_("E354: Invalid register name: '%s'"), transchar(name)); 857 } 858 859 /* 860 * Give an error message which contains %s for "name[len]". 861 */ 862 void 863 emsg_namelen(char *msg, char_u *name, int len) 864 { 865 char_u *copy = vim_strnsave((char_u *)name, len); 866 867 semsg(msg, copy == NULL ? "NULL" : (char *)copy); 868 vim_free(copy); 869 } 870 871 /* 872 * Like msg(), but truncate to a single line if p_shm contains 't', or when 873 * "force" is TRUE. This truncates in another way as for normal messages. 874 * Careful: The string may be changed by msg_may_trunc()! 875 * Returns a pointer to the printed message, if wait_return() not called. 876 */ 877 char * 878 msg_trunc_attr(char *s, int force, int attr) 879 { 880 int n; 881 char *ts; 882 883 // Add message to history before truncating 884 add_msg_hist((char_u *)s, -1, attr); 885 886 ts = (char *)msg_may_trunc(force, (char_u *)s); 887 888 msg_hist_off = TRUE; 889 n = msg_attr(ts, attr); 890 msg_hist_off = FALSE; 891 892 if (n) 893 return ts; 894 return NULL; 895 } 896 897 /* 898 * Check if message "s" should be truncated at the start (for filenames). 899 * Return a pointer to where the truncated message starts. 900 * Note: May change the message by replacing a character with '<'. 901 */ 902 char_u * 903 msg_may_trunc(int force, char_u *s) 904 { 905 int n; 906 int room; 907 908 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 909 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 910 && (n = (int)STRLEN(s) - room) > 0) 911 { 912 if (has_mbyte) 913 { 914 int size = vim_strsize(s); 915 916 // There may be room anyway when there are multibyte chars. 917 if (size <= room) 918 return s; 919 920 for (n = 0; size >= room; ) 921 { 922 size -= (*mb_ptr2cells)(s + n); 923 n += (*mb_ptr2len)(s + n); 924 } 925 --n; 926 } 927 s += n; 928 *s = '<'; 929 } 930 return s; 931 } 932 933 static void 934 add_msg_hist( 935 char_u *s, 936 int len, // -1 for undetermined length 937 int attr) 938 { 939 struct msg_hist *p; 940 941 if (msg_hist_off || msg_silent != 0) 942 return; 943 944 // Don't let the message history get too big 945 while (msg_hist_len > MAX_MSG_HIST_LEN) 946 (void)delete_first_msg(); 947 948 // allocate an entry and add the message at the end of the history 949 p = ALLOC_ONE(struct msg_hist); 950 if (p != NULL) 951 { 952 if (len < 0) 953 len = (int)STRLEN(s); 954 // remove leading and trailing newlines 955 while (len > 0 && *s == '\n') 956 { 957 ++s; 958 --len; 959 } 960 while (len > 0 && s[len - 1] == '\n') 961 --len; 962 p->msg = vim_strnsave(s, len); 963 p->next = NULL; 964 p->attr = attr; 965 if (last_msg_hist != NULL) 966 last_msg_hist->next = p; 967 last_msg_hist = p; 968 if (first_msg_hist == NULL) 969 first_msg_hist = last_msg_hist; 970 ++msg_hist_len; 971 } 972 } 973 974 /* 975 * Delete the first (oldest) message from the history. 976 * Returns FAIL if there are no messages. 977 */ 978 int 979 delete_first_msg(void) 980 { 981 struct msg_hist *p; 982 983 if (msg_hist_len <= 0) 984 return FAIL; 985 p = first_msg_hist; 986 first_msg_hist = p->next; 987 if (first_msg_hist == NULL) 988 last_msg_hist = NULL; // history is empty 989 vim_free(p->msg); 990 vim_free(p); 991 --msg_hist_len; 992 return OK; 993 } 994 995 /* 996 * ":messages" command. 997 */ 998 void 999 ex_messages(exarg_T *eap) 1000 { 1001 struct msg_hist *p; 1002 char_u *s; 1003 int c = 0; 1004 1005 if (STRCMP(eap->arg, "clear") == 0) 1006 { 1007 int keep = eap->addr_count == 0 ? 0 : eap->line2; 1008 1009 while (msg_hist_len > keep) 1010 (void)delete_first_msg(); 1011 return; 1012 } 1013 1014 if (*eap->arg != NUL) 1015 { 1016 emsg(_(e_invarg)); 1017 return; 1018 } 1019 1020 msg_hist_off = TRUE; 1021 1022 p = first_msg_hist; 1023 if (eap->addr_count != 0) 1024 { 1025 // Count total messages 1026 for (; p != NULL && !got_int; p = p->next) 1027 c++; 1028 1029 c -= eap->line2; 1030 1031 // Skip without number of messages specified 1032 for (p = first_msg_hist; p != NULL && !got_int && c > 0; 1033 p = p->next, c--); 1034 } 1035 1036 if (p == first_msg_hist) 1037 { 1038 #ifdef FEAT_MULTI_LANG 1039 s = get_mess_lang(); 1040 #else 1041 s = mch_getenv((char_u *)"LANG"); 1042 #endif 1043 if (s != NULL && *s != NUL) 1044 // The next comment is extracted by xgettext and put in po file for 1045 // translators to read. 1046 msg_attr( 1047 // Translator: Please replace the name and email address 1048 // with the appropriate text for your translation. 1049 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 1050 HL_ATTR(HLF_T)); 1051 } 1052 1053 // Display what was not skipped. 1054 for (; p != NULL && !got_int; p = p->next) 1055 if (p->msg != NULL) 1056 msg_attr((char *)p->msg, p->attr); 1057 1058 msg_hist_off = FALSE; 1059 } 1060 1061 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 1062 /* 1063 * Call this after prompting the user. This will avoid a hit-return message 1064 * and a delay. 1065 */ 1066 void 1067 msg_end_prompt(void) 1068 { 1069 need_wait_return = FALSE; 1070 emsg_on_display = FALSE; 1071 cmdline_row = msg_row; 1072 msg_col = 0; 1073 msg_clr_eos(); 1074 lines_left = -1; 1075 } 1076 #endif 1077 1078 /* 1079 * Wait for the user to hit a key (normally Enter). 1080 * If "redraw" is TRUE, clear and redraw the screen. 1081 * If "redraw" is FALSE, just redraw the screen. 1082 * If "redraw" is -1, don't redraw at all. 1083 */ 1084 void 1085 wait_return(int redraw) 1086 { 1087 int c; 1088 int oldState; 1089 int tmpState; 1090 int had_got_int; 1091 int save_reg_recording; 1092 FILE *save_scriptout; 1093 1094 if (redraw == TRUE) 1095 must_redraw = CLEAR; 1096 1097 // If using ":silent cmd", don't wait for a return. Also don't set 1098 // need_wait_return to do it later. 1099 if (msg_silent != 0) 1100 return; 1101 1102 /* 1103 * When inside vgetc(), we can't wait for a typed character at all. 1104 * With the global command (and some others) we only need one return at 1105 * the end. Adjust cmdline_row to avoid the next message overwriting the 1106 * last one. 1107 */ 1108 if (vgetc_busy > 0) 1109 return; 1110 need_wait_return = TRUE; 1111 if (no_wait_return) 1112 { 1113 if (!exmode_active) 1114 cmdline_row = msg_row; 1115 return; 1116 } 1117 1118 redir_off = TRUE; // don't redirect this message 1119 oldState = State; 1120 if (quit_more) 1121 { 1122 c = CAR; // just pretend CR was hit 1123 quit_more = FALSE; 1124 got_int = FALSE; 1125 } 1126 else if (exmode_active) 1127 { 1128 msg_puts(" "); // make sure the cursor is on the right line 1129 c = CAR; // no need for a return in ex mode 1130 got_int = FALSE; 1131 } 1132 else 1133 { 1134 // Make sure the hit-return prompt is on screen when 'guioptions' was 1135 // just changed. 1136 screenalloc(FALSE); 1137 1138 State = HITRETURN; 1139 setmouse(); 1140 #ifdef USE_ON_FLY_SCROLL 1141 dont_scroll = TRUE; // disallow scrolling here 1142 #endif 1143 cmdline_row = msg_row; 1144 1145 // Avoid the sequence that the user types ":" at the hit-return prompt 1146 // to start an Ex command, but the file-changed dialog gets in the 1147 // way. 1148 if (need_check_timestamps) 1149 check_timestamps(FALSE); 1150 1151 hit_return_msg(); 1152 1153 do 1154 { 1155 // Remember "got_int", if it is set vgetc() probably returns a 1156 // CTRL-C, but we need to loop then. 1157 had_got_int = got_int; 1158 1159 // Don't do mappings here, we put the character back in the 1160 // typeahead buffer. 1161 ++no_mapping; 1162 ++allow_keys; 1163 1164 // Temporarily disable Recording. If Recording is active, the 1165 // character will be recorded later, since it will be added to the 1166 // typebuf after the loop 1167 save_reg_recording = reg_recording; 1168 save_scriptout = scriptout; 1169 reg_recording = 0; 1170 scriptout = NULL; 1171 c = safe_vgetc(); 1172 if (had_got_int && !global_busy) 1173 got_int = FALSE; 1174 --no_mapping; 1175 --allow_keys; 1176 reg_recording = save_reg_recording; 1177 scriptout = save_scriptout; 1178 1179 #ifdef FEAT_CLIPBOARD 1180 // Strange way to allow copying (yanking) a modeless selection at 1181 // the hit-enter prompt. Use CTRL-Y, because the same is used in 1182 // Cmdline-mode and it's harmless when there is no selection. 1183 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 1184 { 1185 clip_copy_modeless_selection(TRUE); 1186 c = K_IGNORE; 1187 } 1188 #endif 1189 1190 /* 1191 * Allow scrolling back in the messages. 1192 * Also accept scroll-down commands when messages fill the screen, 1193 * to avoid that typing one 'j' too many makes the messages 1194 * disappear. 1195 */ 1196 if (p_more && !p_cp) 1197 { 1198 if (c == 'b' || c == 'k' || c == 'u' || c == 'g' 1199 || c == K_UP || c == K_PAGEUP) 1200 { 1201 if (msg_scrolled > Rows) 1202 // scroll back to show older messages 1203 do_more_prompt(c); 1204 else 1205 { 1206 msg_didout = FALSE; 1207 c = K_IGNORE; 1208 msg_col = 1209 #ifdef FEAT_RIGHTLEFT 1210 cmdmsg_rl ? Columns - 1 : 1211 #endif 1212 0; 1213 } 1214 if (quit_more) 1215 { 1216 c = CAR; // just pretend CR was hit 1217 quit_more = FALSE; 1218 got_int = FALSE; 1219 } 1220 else if (c != K_IGNORE) 1221 { 1222 c = K_IGNORE; 1223 hit_return_msg(); 1224 } 1225 } 1226 else if (msg_scrolled > Rows - 2 1227 && (c == 'j' || c == 'd' || c == 'f' 1228 || c == K_DOWN || c == K_PAGEDOWN)) 1229 c = K_IGNORE; 1230 } 1231 } while ((had_got_int && c == Ctrl_C) 1232 || c == K_IGNORE 1233 #ifdef FEAT_GUI 1234 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 1235 #endif 1236 || c == K_LEFTDRAG || c == K_LEFTRELEASE 1237 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 1238 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 1239 || c == K_MOUSELEFT || c == K_MOUSERIGHT 1240 || c == K_MOUSEDOWN || c == K_MOUSEUP 1241 || c == K_MOUSEMOVE 1242 || (!mouse_has(MOUSE_RETURN) 1243 && mouse_row < msg_row 1244 && (c == K_LEFTMOUSE 1245 || c == K_MIDDLEMOUSE 1246 || c == K_RIGHTMOUSE 1247 || c == K_X1MOUSE 1248 || c == K_X2MOUSE)) 1249 ); 1250 ui_breakcheck(); 1251 /* 1252 * Avoid that the mouse-up event causes visual mode to start. 1253 */ 1254 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 1255 || c == K_X1MOUSE || c == K_X2MOUSE) 1256 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 1257 else if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 1258 { 1259 // Put the character back in the typeahead buffer. Don't use the 1260 // stuff buffer, because lmaps wouldn't work. 1261 ins_char_typebuf(c); 1262 do_redraw = TRUE; // need a redraw even though there is 1263 // typeahead 1264 } 1265 } 1266 redir_off = FALSE; 1267 1268 /* 1269 * If the user hits ':', '?' or '/' we get a command line from the next 1270 * line. 1271 */ 1272 if (c == ':' || c == '?' || c == '/') 1273 { 1274 if (!exmode_active) 1275 cmdline_row = msg_row; 1276 skip_redraw = TRUE; // skip redraw once 1277 do_redraw = FALSE; 1278 #ifdef FEAT_TERMINAL 1279 skip_term_loop = TRUE; 1280 #endif 1281 } 1282 1283 /* 1284 * If the window size changed set_shellsize() will redraw the screen. 1285 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1286 * typed. 1287 */ 1288 tmpState = State; 1289 State = oldState; // restore State before set_shellsize 1290 setmouse(); 1291 msg_check(); 1292 1293 #if defined(UNIX) || defined(VMS) 1294 /* 1295 * When switching screens, we need to output an extra newline on exit. 1296 */ 1297 if (swapping_screen() && !termcap_active) 1298 newline_on_exit = TRUE; 1299 #endif 1300 1301 need_wait_return = FALSE; 1302 did_wait_return = TRUE; 1303 emsg_on_display = FALSE; // can delete error message now 1304 lines_left = -1; // reset lines_left at next msg_start() 1305 reset_last_sourcing(); 1306 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1307 (Rows - cmdline_row - 1) * Columns + sc_col) 1308 VIM_CLEAR(keep_msg); // don't redisplay message, it's too long 1309 1310 if (tmpState == SETWSIZE) // got resize event while in vgetc() 1311 { 1312 starttermcap(); // start termcap before redrawing 1313 shell_resized(); 1314 } 1315 else if (!skip_redraw 1316 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1317 { 1318 starttermcap(); // start termcap before redrawing 1319 redraw_later(VALID); 1320 } 1321 } 1322 1323 /* 1324 * Write the hit-return prompt. 1325 */ 1326 static void 1327 hit_return_msg(void) 1328 { 1329 int save_p_more = p_more; 1330 1331 p_more = FALSE; // don't want see this message when scrolling back 1332 if (msg_didout) // start on a new line 1333 msg_putchar('\n'); 1334 if (got_int) 1335 msg_puts(_("Interrupt: ")); 1336 1337 msg_puts_attr(_("Press ENTER or type command to continue"), HL_ATTR(HLF_R)); 1338 if (!msg_use_printf()) 1339 msg_clr_eos(); 1340 p_more = save_p_more; 1341 } 1342 1343 /* 1344 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1345 */ 1346 void 1347 set_keep_msg(char_u *s, int attr) 1348 { 1349 vim_free(keep_msg); 1350 if (s != NULL && msg_silent == 0) 1351 keep_msg = vim_strsave(s); 1352 else 1353 keep_msg = NULL; 1354 keep_msg_more = FALSE; 1355 keep_msg_attr = attr; 1356 } 1357 1358 #if defined(FEAT_TERMRESPONSE) || defined(PROTO) 1359 /* 1360 * If there currently is a message being displayed, set "keep_msg" to it, so 1361 * that it will be displayed again after redraw. 1362 */ 1363 void 1364 set_keep_msg_from_hist(void) 1365 { 1366 if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0 1367 && (State & NORMAL)) 1368 set_keep_msg(last_msg_hist->msg, last_msg_hist->attr); 1369 } 1370 #endif 1371 1372 /* 1373 * Prepare for outputting characters in the command line. 1374 */ 1375 void 1376 msg_start(void) 1377 { 1378 int did_return = FALSE; 1379 1380 if (!msg_silent) 1381 VIM_CLEAR(keep_msg); 1382 1383 #ifdef FEAT_EVAL 1384 if (need_clr_eos) 1385 { 1386 // Halfway an ":echo" command and getting an (error) message: clear 1387 // any text from the command. 1388 need_clr_eos = FALSE; 1389 msg_clr_eos(); 1390 } 1391 #endif 1392 1393 if (!msg_scroll && full_screen) // overwrite last message 1394 { 1395 msg_row = cmdline_row; 1396 msg_col = 1397 #ifdef FEAT_RIGHTLEFT 1398 cmdmsg_rl ? Columns - 1 : 1399 #endif 1400 0; 1401 } 1402 else if (msg_didout) // start message on next line 1403 { 1404 msg_putchar('\n'); 1405 did_return = TRUE; 1406 if (exmode_active != EXMODE_NORMAL) 1407 cmdline_row = msg_row; 1408 } 1409 if (!msg_didany || lines_left < 0) 1410 msg_starthere(); 1411 if (msg_silent == 0) 1412 { 1413 msg_didout = FALSE; // no output on current line yet 1414 cursor_off(); 1415 } 1416 1417 // when redirecting, may need to start a new line. 1418 if (!did_return) 1419 redir_write((char_u *)"\n", -1); 1420 } 1421 1422 /* 1423 * Note that the current msg position is where messages start. 1424 */ 1425 void 1426 msg_starthere(void) 1427 { 1428 lines_left = cmdline_row; 1429 msg_didany = FALSE; 1430 } 1431 1432 void 1433 msg_putchar(int c) 1434 { 1435 msg_putchar_attr(c, 0); 1436 } 1437 1438 void 1439 msg_putchar_attr(int c, int attr) 1440 { 1441 char_u buf[MB_MAXBYTES + 1]; 1442 1443 if (IS_SPECIAL(c)) 1444 { 1445 buf[0] = K_SPECIAL; 1446 buf[1] = K_SECOND(c); 1447 buf[2] = K_THIRD(c); 1448 buf[3] = NUL; 1449 } 1450 else 1451 buf[(*mb_char2bytes)(c, buf)] = NUL; 1452 msg_puts_attr((char *)buf, attr); 1453 } 1454 1455 void 1456 msg_outnum(long n) 1457 { 1458 char buf[20]; 1459 1460 sprintf(buf, "%ld", n); 1461 msg_puts(buf); 1462 } 1463 1464 void 1465 msg_home_replace(char_u *fname) 1466 { 1467 msg_home_replace_attr(fname, 0); 1468 } 1469 1470 #if defined(FEAT_FIND_ID) || defined(PROTO) 1471 void 1472 msg_home_replace_hl(char_u *fname) 1473 { 1474 msg_home_replace_attr(fname, HL_ATTR(HLF_D)); 1475 } 1476 #endif 1477 1478 static void 1479 msg_home_replace_attr(char_u *fname, int attr) 1480 { 1481 char_u *name; 1482 1483 name = home_replace_save(NULL, fname); 1484 if (name != NULL) 1485 msg_outtrans_attr(name, attr); 1486 vim_free(name); 1487 } 1488 1489 /* 1490 * Output 'len' characters in 'str' (including NULs) with translation 1491 * if 'len' is -1, output up to a NUL character. 1492 * Use attributes 'attr'. 1493 * Return the number of characters it takes on the screen. 1494 */ 1495 int 1496 msg_outtrans(char_u *str) 1497 { 1498 return msg_outtrans_attr(str, 0); 1499 } 1500 1501 int 1502 msg_outtrans_attr(char_u *str, int attr) 1503 { 1504 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1505 } 1506 1507 int 1508 msg_outtrans_len(char_u *str, int len) 1509 { 1510 return msg_outtrans_len_attr(str, len, 0); 1511 } 1512 1513 /* 1514 * Output one character at "p". Return pointer to the next character. 1515 * Handles multi-byte characters. 1516 */ 1517 char_u * 1518 msg_outtrans_one(char_u *p, int attr) 1519 { 1520 int l; 1521 1522 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1523 { 1524 msg_outtrans_len_attr(p, l, attr); 1525 return p + l; 1526 } 1527 msg_puts_attr((char *)transchar_byte(*p), attr); 1528 return p + 1; 1529 } 1530 1531 int 1532 msg_outtrans_len_attr(char_u *msgstr, int len, int attr) 1533 { 1534 int retval = 0; 1535 char_u *str = msgstr; 1536 char_u *plain_start = msgstr; 1537 char_u *s; 1538 int mb_l; 1539 int c; 1540 1541 // if MSG_HIST flag set, add message to history 1542 if (attr & MSG_HIST) 1543 { 1544 add_msg_hist(str, len, attr); 1545 attr &= ~MSG_HIST; 1546 } 1547 1548 // If the string starts with a composing character first draw a space on 1549 // which the composing char can be drawn. 1550 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1551 msg_puts_attr(" ", attr); 1552 1553 /* 1554 * Go over the string. Special characters are translated and printed. 1555 * Normal characters are printed several at a time. 1556 */ 1557 while (--len >= 0) 1558 { 1559 if (enc_utf8) 1560 // Don't include composing chars after the end. 1561 mb_l = utfc_ptr2len_len(str, len + 1); 1562 else if (has_mbyte) 1563 mb_l = (*mb_ptr2len)(str); 1564 else 1565 mb_l = 1; 1566 if (has_mbyte && mb_l > 1) 1567 { 1568 c = (*mb_ptr2char)(str); 1569 if (vim_isprintc(c)) 1570 // printable multi-byte char: count the cells. 1571 retval += (*mb_ptr2cells)(str); 1572 else 1573 { 1574 // unprintable multi-byte char: print the printable chars so 1575 // far and the translation of the unprintable char. 1576 if (str > plain_start) 1577 msg_puts_attr_len((char *)plain_start, 1578 (int)(str - plain_start), attr); 1579 plain_start = str + mb_l; 1580 msg_puts_attr((char *)transchar(c), 1581 attr == 0 ? HL_ATTR(HLF_8) : attr); 1582 retval += char2cells(c); 1583 } 1584 len -= mb_l - 1; 1585 str += mb_l; 1586 } 1587 else 1588 { 1589 s = transchar_byte(*str); 1590 if (s[1] != NUL) 1591 { 1592 // unprintable char: print the printable chars so far and the 1593 // translation of the unprintable char. 1594 if (str > plain_start) 1595 msg_puts_attr_len((char *)plain_start, 1596 (int)(str - plain_start), attr); 1597 plain_start = str + 1; 1598 msg_puts_attr((char *)s, attr == 0 ? HL_ATTR(HLF_8) : attr); 1599 retval += (int)STRLEN(s); 1600 } 1601 else 1602 ++retval; 1603 ++str; 1604 } 1605 } 1606 1607 if (str > plain_start) 1608 // print the printable chars at the end 1609 msg_puts_attr_len((char *)plain_start, (int)(str - plain_start), attr); 1610 1611 return retval; 1612 } 1613 1614 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1615 void 1616 msg_make(char_u *arg) 1617 { 1618 int i; 1619 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1620 1621 arg = skipwhite(arg); 1622 for (i = 5; *arg && i >= 0; --i) 1623 if (*arg++ != str[i]) 1624 break; 1625 if (i < 0) 1626 { 1627 msg_putchar('\n'); 1628 for (i = 0; rs[i]; ++i) 1629 msg_putchar(rs[i] - 3); 1630 } 1631 } 1632 #endif 1633 1634 /* 1635 * Output the string 'str' up to a NUL character. 1636 * Return the number of characters it takes on the screen. 1637 * 1638 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1639 * following character and shown as <F1>, <S-Up> etc. Any other character 1640 * which is not printable shown in <> form. 1641 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1642 * If a character is displayed in one of these special ways, is also 1643 * highlighted (its highlight name is '8' in the p_hl variable). 1644 * Otherwise characters are not highlighted. 1645 * This function is used to show mappings, where we want to see how to type 1646 * the character/string -- webb 1647 */ 1648 int 1649 msg_outtrans_special( 1650 char_u *strstart, 1651 int from, // TRUE for lhs of a mapping 1652 int maxlen) // screen columns, 0 for unlimited 1653 { 1654 char_u *str = strstart; 1655 int retval = 0; 1656 char *text; 1657 int attr; 1658 int len; 1659 1660 attr = HL_ATTR(HLF_8); 1661 while (*str != NUL) 1662 { 1663 // Leading and trailing spaces need to be displayed in <> form. 1664 if ((str == strstart || str[1] == NUL) && *str == ' ') 1665 { 1666 text = "<Space>"; 1667 ++str; 1668 } 1669 else 1670 text = (char *)str2special(&str, from); 1671 len = vim_strsize((char_u *)text); 1672 if (maxlen > 0 && retval + len >= maxlen) 1673 break; 1674 // Highlight special keys 1675 msg_puts_attr(text, len > 1 1676 && (*mb_ptr2len)((char_u *)text) <= 1 ? attr : 0); 1677 retval += len; 1678 } 1679 return retval; 1680 } 1681 1682 #if defined(FEAT_EVAL) || defined(PROTO) 1683 /* 1684 * Return the lhs or rhs of a mapping, with the key codes turned into printable 1685 * strings, in an allocated string. 1686 */ 1687 char_u * 1688 str2special_save( 1689 char_u *str, 1690 int is_lhs) // TRUE for lhs, FALSE for rhs 1691 { 1692 garray_T ga; 1693 char_u *p = str; 1694 1695 ga_init2(&ga, 1, 40); 1696 while (*p != NUL) 1697 ga_concat(&ga, str2special(&p, is_lhs)); 1698 ga_append(&ga, NUL); 1699 return (char_u *)ga.ga_data; 1700 } 1701 #endif 1702 1703 /* 1704 * Return the printable string for the key codes at "*sp". 1705 * Used for translating the lhs or rhs of a mapping to printable chars. 1706 * Advances "sp" to the next code. 1707 */ 1708 char_u * 1709 str2special( 1710 char_u **sp, 1711 int from) // TRUE for lhs of mapping 1712 { 1713 int c; 1714 static char_u buf[7]; 1715 char_u *str = *sp; 1716 int modifiers = 0; 1717 int special = FALSE; 1718 1719 if (has_mbyte) 1720 { 1721 char_u *p; 1722 1723 // Try to un-escape a multi-byte character. Return the un-escaped 1724 // string if it is a multi-byte character. 1725 p = mb_unescape(sp); 1726 if (p != NULL) 1727 return p; 1728 } 1729 1730 c = *str; 1731 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1732 { 1733 if (str[1] == KS_MODIFIER) 1734 { 1735 modifiers = str[2]; 1736 str += 3; 1737 c = *str; 1738 } 1739 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1740 { 1741 c = TO_SPECIAL(str[1], str[2]); 1742 str += 2; 1743 } 1744 if (IS_SPECIAL(c) || modifiers) // special key 1745 special = TRUE; 1746 } 1747 1748 if (has_mbyte && !IS_SPECIAL(c)) 1749 { 1750 int len = (*mb_ptr2len)(str); 1751 1752 // For multi-byte characters check for an illegal byte. 1753 if (has_mbyte && MB_BYTE2LEN(*str) > len) 1754 { 1755 transchar_nonprint(buf, c); 1756 *sp = str + 1; 1757 return buf; 1758 } 1759 // Since 'special' is TRUE the multi-byte character 'c' will be 1760 // processed by get_special_key_name() 1761 c = (*mb_ptr2char)(str); 1762 *sp = str + len; 1763 } 1764 else 1765 *sp = str + 1; 1766 1767 // Make unprintable characters in <> form, also <M-Space> and <Tab>. 1768 // Use <Space> only for lhs of a mapping. 1769 if (special || char2cells(c) > 1 || (from && c == ' ')) 1770 return get_special_key_name(c, modifiers); 1771 buf[0] = c; 1772 buf[1] = NUL; 1773 return buf; 1774 } 1775 1776 /* 1777 * Translate a key sequence into special key names. 1778 */ 1779 void 1780 str2specialbuf(char_u *sp, char_u *buf, int len) 1781 { 1782 char_u *s; 1783 1784 *buf = NUL; 1785 while (*sp) 1786 { 1787 s = str2special(&sp, FALSE); 1788 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1789 STRCAT(buf, s); 1790 } 1791 } 1792 1793 /* 1794 * print line for :print or :list command 1795 */ 1796 void 1797 msg_prt_line(char_u *s, int list) 1798 { 1799 int c; 1800 int col = 0; 1801 int n_extra = 0; 1802 int c_extra = 0; 1803 int c_final = 0; 1804 char_u *p_extra = NULL; // init to make SASC shut up 1805 int n; 1806 int attr = 0; 1807 char_u *trail = NULL; 1808 int l; 1809 char_u buf[MB_MAXBYTES + 1]; 1810 1811 if (curwin->w_p_list) 1812 list = TRUE; 1813 1814 // find start of trailing whitespace 1815 if (list && lcs_trail) 1816 { 1817 trail = s + STRLEN(s); 1818 while (trail > s && VIM_ISWHITE(trail[-1])) 1819 --trail; 1820 } 1821 1822 // output a space for an empty line, otherwise the line will be 1823 // overwritten 1824 if (*s == NUL && !(list && lcs_eol != NUL)) 1825 msg_putchar(' '); 1826 1827 while (!got_int) 1828 { 1829 if (n_extra > 0) 1830 { 1831 --n_extra; 1832 if (n_extra == 0 && c_final) 1833 c = c_final; 1834 else if (c_extra) 1835 c = c_extra; 1836 else 1837 c = *p_extra++; 1838 } 1839 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1840 { 1841 col += (*mb_ptr2cells)(s); 1842 if (lcs_nbsp != NUL && list 1843 && (mb_ptr2char(s) == 160 1844 || mb_ptr2char(s) == 0x202f)) 1845 { 1846 mb_char2bytes(lcs_nbsp, buf); 1847 buf[(*mb_ptr2len)(buf)] = NUL; 1848 } 1849 else 1850 { 1851 mch_memmove(buf, s, (size_t)l); 1852 buf[l] = NUL; 1853 } 1854 msg_puts((char *)buf); 1855 s += l; 1856 continue; 1857 } 1858 else 1859 { 1860 attr = 0; 1861 c = *s++; 1862 if (c == TAB && (!list || lcs_tab1)) 1863 { 1864 // tab amount depends on current column 1865 #ifdef FEAT_VARTABS 1866 n_extra = tabstop_padding(col, curbuf->b_p_ts, 1867 curbuf->b_p_vts_array) - 1; 1868 #else 1869 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1870 #endif 1871 if (!list) 1872 { 1873 c = ' '; 1874 c_extra = ' '; 1875 c_final = NUL; 1876 } 1877 else 1878 { 1879 c = (n_extra == 0 && lcs_tab3) ? lcs_tab3 : lcs_tab1; 1880 c_extra = lcs_tab2; 1881 c_final = lcs_tab3; 1882 attr = HL_ATTR(HLF_8); 1883 } 1884 } 1885 else if (c == 160 && list && lcs_nbsp != NUL) 1886 { 1887 c = lcs_nbsp; 1888 attr = HL_ATTR(HLF_8); 1889 } 1890 else if (c == NUL && list && lcs_eol != NUL) 1891 { 1892 p_extra = (char_u *)""; 1893 c_extra = NUL; 1894 c_final = NUL; 1895 n_extra = 1; 1896 c = lcs_eol; 1897 attr = HL_ATTR(HLF_AT); 1898 --s; 1899 } 1900 else if (c != NUL && (n = byte2cells(c)) > 1) 1901 { 1902 n_extra = n - 1; 1903 p_extra = transchar_byte(c); 1904 c_extra = NUL; 1905 c_final = NUL; 1906 c = *p_extra++; 1907 // Use special coloring to be able to distinguish <hex> from 1908 // the same in plain text. 1909 attr = HL_ATTR(HLF_8); 1910 } 1911 else if (c == ' ' && trail != NULL && s > trail) 1912 { 1913 c = lcs_trail; 1914 attr = HL_ATTR(HLF_8); 1915 } 1916 else if (c == ' ' && list && lcs_space != NUL) 1917 { 1918 c = lcs_space; 1919 attr = HL_ATTR(HLF_8); 1920 } 1921 } 1922 1923 if (c == NUL) 1924 break; 1925 1926 msg_putchar_attr(c, attr); 1927 col++; 1928 } 1929 msg_clr_eos(); 1930 } 1931 1932 /* 1933 * Use screen_puts() to output one multi-byte character. 1934 * Return the pointer "s" advanced to the next character. 1935 */ 1936 static char_u * 1937 screen_puts_mbyte(char_u *s, int l, int attr) 1938 { 1939 int cw; 1940 1941 msg_didout = TRUE; // remember that line is not empty 1942 cw = (*mb_ptr2cells)(s); 1943 if (cw > 1 && ( 1944 #ifdef FEAT_RIGHTLEFT 1945 cmdmsg_rl ? msg_col <= 1 : 1946 #endif 1947 msg_col == Columns - 1)) 1948 { 1949 // Doesn't fit, print a highlighted '>' to fill it up. 1950 msg_screen_putchar('>', HL_ATTR(HLF_AT)); 1951 return s; 1952 } 1953 1954 screen_puts_len(s, l, msg_row, msg_col, attr); 1955 #ifdef FEAT_RIGHTLEFT 1956 if (cmdmsg_rl) 1957 { 1958 msg_col -= cw; 1959 if (msg_col == 0) 1960 { 1961 msg_col = Columns; 1962 ++msg_row; 1963 } 1964 } 1965 else 1966 #endif 1967 { 1968 msg_col += cw; 1969 if (msg_col >= Columns) 1970 { 1971 msg_col = 0; 1972 ++msg_row; 1973 } 1974 } 1975 return s + l; 1976 } 1977 1978 /* 1979 * Output a string to the screen at position msg_row, msg_col. 1980 * Update msg_row and msg_col for the next message. 1981 */ 1982 void 1983 msg_puts(char *s) 1984 { 1985 msg_puts_attr(s, 0); 1986 } 1987 1988 void 1989 msg_puts_title(char *s) 1990 { 1991 msg_puts_attr(s, HL_ATTR(HLF_T)); 1992 } 1993 1994 /* 1995 * Show a message in such a way that it always fits in the line. Cut out a 1996 * part in the middle and replace it with "..." when necessary. 1997 * Does not handle multi-byte characters! 1998 */ 1999 static void 2000 msg_outtrans_long_len_attr(char_u *longstr, int len, int attr) 2001 { 2002 int slen = len; 2003 int room; 2004 2005 room = Columns - msg_col; 2006 if (len > room && room >= 20) 2007 { 2008 slen = (room - 3) / 2; 2009 msg_outtrans_len_attr(longstr, slen, attr); 2010 msg_puts_attr("...", HL_ATTR(HLF_8)); 2011 } 2012 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 2013 } 2014 2015 void 2016 msg_outtrans_long_attr(char_u *longstr, int attr) 2017 { 2018 msg_outtrans_long_len_attr(longstr, (int)STRLEN(longstr), attr); 2019 } 2020 2021 /* 2022 * Basic function for writing a message with highlight attributes. 2023 */ 2024 void 2025 msg_puts_attr(char *s, int attr) 2026 { 2027 msg_puts_attr_len(s, -1, attr); 2028 } 2029 2030 /* 2031 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 2032 * When "maxlen" is -1 there is no maximum length. 2033 * When "maxlen" is >= 0 the message is not put in the history. 2034 */ 2035 static void 2036 msg_puts_attr_len(char *str, int maxlen, int attr) 2037 { 2038 /* 2039 * If redirection is on, also write to the redirection file. 2040 */ 2041 redir_write((char_u *)str, maxlen); 2042 2043 /* 2044 * Don't print anything when using ":silent cmd". 2045 */ 2046 if (msg_silent != 0) 2047 return; 2048 2049 // if MSG_HIST flag set, add message to history 2050 if ((attr & MSG_HIST) && maxlen < 0) 2051 { 2052 add_msg_hist((char_u *)str, -1, attr); 2053 attr &= ~MSG_HIST; 2054 } 2055 2056 // When writing something to the screen after it has scrolled, requires a 2057 // wait-return prompt later. Needed when scrolling, resetting 2058 // need_wait_return after some prompt, and then outputting something 2059 // without scrolling 2060 // Not needed when only using CR to move the cursor. 2061 if (msg_scrolled != 0 && !msg_scrolled_ign && STRCMP(str, "\r") != 0) 2062 need_wait_return = TRUE; 2063 msg_didany = TRUE; // remember that something was outputted 2064 2065 /* 2066 * If there is no valid screen, use fprintf so we can see error messages. 2067 * If termcap is not active, we may be writing in an alternate console 2068 * window, cursor positioning may not work correctly (window size may be 2069 * different, e.g. for Win32 console) or we just don't know where the 2070 * cursor is. 2071 */ 2072 if (msg_use_printf()) 2073 msg_puts_printf((char_u *)str, maxlen); 2074 else 2075 msg_puts_display((char_u *)str, maxlen, attr, FALSE); 2076 } 2077 2078 /* 2079 * The display part of msg_puts_attr_len(). 2080 * May be called recursively to display scroll-back text. 2081 */ 2082 static void 2083 msg_puts_display( 2084 char_u *str, 2085 int maxlen, 2086 int attr, 2087 int recurse) 2088 { 2089 char_u *s = str; 2090 char_u *t_s = str; // string from "t_s" to "s" is still todo 2091 int t_col = 0; // screen cells todo, 0 when "t_s" not used 2092 int l; 2093 int cw; 2094 char_u *sb_str = str; 2095 int sb_col = msg_col; 2096 int wrap; 2097 int did_last_char; 2098 2099 did_wait_return = FALSE; 2100 while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL) 2101 { 2102 /* 2103 * We are at the end of the screen line when: 2104 * - When outputting a newline. 2105 * - When outputting a character in the last column. 2106 */ 2107 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 2108 #ifdef FEAT_RIGHTLEFT 2109 cmdmsg_rl 2110 ? ( 2111 msg_col <= 1 2112 || (*s == TAB && msg_col <= 7) 2113 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2)) 2114 : 2115 #endif 2116 ((*s != '\r' && msg_col + t_col >= Columns - 1) 2117 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 2118 || (has_mbyte && (*mb_ptr2cells)(s) > 1 2119 && msg_col + t_col >= Columns - 2))))) 2120 { 2121 /* 2122 * The screen is scrolled up when at the last row (some terminals 2123 * scroll automatically, some don't. To avoid problems we scroll 2124 * ourselves). 2125 */ 2126 if (t_col > 0) 2127 // output postponed text 2128 t_puts(&t_col, t_s, s, attr); 2129 2130 // When no more prompt and no more room, truncate here 2131 if (msg_no_more && lines_left == 0) 2132 break; 2133 2134 // Scroll the screen up one line. 2135 msg_scroll_up(); 2136 2137 msg_row = Rows - 2; 2138 if (msg_col >= Columns) // can happen after screen resize 2139 msg_col = Columns - 1; 2140 2141 // Display char in last column before showing more-prompt. 2142 if (*s >= ' ' 2143 #ifdef FEAT_RIGHTLEFT 2144 && !cmdmsg_rl 2145 #endif 2146 ) 2147 { 2148 if (has_mbyte) 2149 { 2150 if (enc_utf8 && maxlen >= 0) 2151 // avoid including composing chars after the end 2152 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2153 else 2154 l = (*mb_ptr2len)(s); 2155 s = screen_puts_mbyte(s, l, attr); 2156 } 2157 else 2158 msg_screen_putchar(*s++, attr); 2159 did_last_char = TRUE; 2160 } 2161 else 2162 did_last_char = FALSE; 2163 2164 if (p_more) 2165 // store text for scrolling back 2166 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2167 2168 inc_msg_scrolled(); 2169 need_wait_return = TRUE; // may need wait_return in main() 2170 redraw_cmdline = TRUE; 2171 if (cmdline_row > 0 && !exmode_active) 2172 --cmdline_row; 2173 2174 /* 2175 * If screen is completely filled and 'more' is set then wait 2176 * for a character. 2177 */ 2178 if (lines_left > 0) 2179 --lines_left; 2180 if (p_more && lines_left == 0 && State != HITRETURN 2181 && !msg_no_more && !exmode_active) 2182 { 2183 #ifdef FEAT_CON_DIALOG 2184 if (do_more_prompt(NUL)) 2185 s = confirm_msg_tail; 2186 #else 2187 (void)do_more_prompt(NUL); 2188 #endif 2189 if (quit_more) 2190 return; 2191 } 2192 2193 // When we displayed a char in last column need to check if there 2194 // is still more. 2195 if (did_last_char) 2196 continue; 2197 } 2198 2199 wrap = *s == '\n' 2200 || msg_col + t_col >= Columns 2201 || (has_mbyte && (*mb_ptr2cells)(s) > 1 2202 && msg_col + t_col >= Columns - 1); 2203 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 2204 || *s == '\t' || *s == BELL)) 2205 // output any postponed text 2206 t_puts(&t_col, t_s, s, attr); 2207 2208 if (wrap && p_more && !recurse) 2209 // store text for scrolling back 2210 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2211 2212 if (*s == '\n') // go to next line 2213 { 2214 msg_didout = FALSE; // remember that line is empty 2215 #ifdef FEAT_RIGHTLEFT 2216 if (cmdmsg_rl) 2217 msg_col = Columns - 1; 2218 else 2219 #endif 2220 msg_col = 0; 2221 if (++msg_row >= Rows) // safety check 2222 msg_row = Rows - 1; 2223 } 2224 else if (*s == '\r') // go to column 0 2225 { 2226 msg_col = 0; 2227 } 2228 else if (*s == '\b') // go to previous char 2229 { 2230 if (msg_col) 2231 --msg_col; 2232 } 2233 else if (*s == TAB) // translate Tab into spaces 2234 { 2235 do 2236 msg_screen_putchar(' ', attr); 2237 while (msg_col & 7); 2238 } 2239 else if (*s == BELL) // beep (from ":sh") 2240 vim_beep(BO_SH); 2241 else 2242 { 2243 if (has_mbyte) 2244 { 2245 cw = (*mb_ptr2cells)(s); 2246 if (enc_utf8 && maxlen >= 0) 2247 // avoid including composing chars after the end 2248 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2249 else 2250 l = (*mb_ptr2len)(s); 2251 } 2252 else 2253 { 2254 cw = 1; 2255 l = 1; 2256 } 2257 2258 // When drawing from right to left or when a double-wide character 2259 // doesn't fit, draw a single character here. Otherwise collect 2260 // characters and draw them all at once later. 2261 if ( 2262 # ifdef FEAT_RIGHTLEFT 2263 cmdmsg_rl || 2264 # endif 2265 (cw > 1 && msg_col + t_col >= Columns - 1)) 2266 { 2267 if (l > 1) 2268 s = screen_puts_mbyte(s, l, attr) - 1; 2269 else 2270 msg_screen_putchar(*s, attr); 2271 } 2272 else 2273 { 2274 // postpone this character until later 2275 if (t_col == 0) 2276 t_s = s; 2277 t_col += cw; 2278 s += l - 1; 2279 } 2280 } 2281 ++s; 2282 } 2283 2284 // output any postponed text 2285 if (t_col > 0) 2286 t_puts(&t_col, t_s, s, attr); 2287 if (p_more && !recurse) 2288 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2289 2290 msg_check(); 2291 } 2292 2293 /* 2294 * Return TRUE when ":filter pattern" was used and "msg" does not match 2295 * "pattern". 2296 */ 2297 int 2298 message_filtered(char_u *msg) 2299 { 2300 int match; 2301 2302 if (cmdmod.filter_regmatch.regprog == NULL) 2303 return FALSE; 2304 match = vim_regexec(&cmdmod.filter_regmatch, msg, (colnr_T)0); 2305 return cmdmod.filter_force ? match : !match; 2306 } 2307 2308 /* 2309 * Scroll the screen up one line for displaying the next message line. 2310 */ 2311 static void 2312 msg_scroll_up(void) 2313 { 2314 #ifdef FEAT_GUI 2315 // Remove the cursor before scrolling, ScreenLines[] is going 2316 // to become invalid. 2317 if (gui.in_use) 2318 gui_undraw_cursor(); 2319 #endif 2320 // scrolling up always works 2321 mch_disable_flush(); 2322 screen_del_lines(0, 0, 1, (int)Rows, TRUE, 0, NULL); 2323 mch_enable_flush(); 2324 2325 if (!can_clear((char_u *)" ")) 2326 { 2327 // Scrolling up doesn't result in the right background. Set the 2328 // background here. It's not efficient, but avoids that we have to do 2329 // it all over the code. 2330 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2331 2332 // Also clear the last char of the last but one line if it was not 2333 // cleared before to avoid a scroll-up. 2334 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2335 screen_fill((int)Rows - 2, (int)Rows - 1, 2336 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2337 } 2338 } 2339 2340 /* 2341 * Increment "msg_scrolled". 2342 */ 2343 static void 2344 inc_msg_scrolled(void) 2345 { 2346 #ifdef FEAT_EVAL 2347 if (*get_vim_var_str(VV_SCROLLSTART) == NUL) 2348 { 2349 char_u *p = SOURCING_NAME; 2350 char_u *tofree = NULL; 2351 int len; 2352 2353 // v:scrollstart is empty, set it to the script/function name and line 2354 // number 2355 if (p == NULL) 2356 p = (char_u *)_("Unknown"); 2357 else 2358 { 2359 len = (int)STRLEN(p) + 40; 2360 tofree = alloc(len); 2361 if (tofree != NULL) 2362 { 2363 vim_snprintf((char *)tofree, len, _("%s line %ld"), 2364 p, (long)SOURCING_LNUM); 2365 p = tofree; 2366 } 2367 } 2368 set_vim_var_string(VV_SCROLLSTART, p, -1); 2369 vim_free(tofree); 2370 } 2371 #endif 2372 ++msg_scrolled; 2373 if (must_redraw < VALID) 2374 must_redraw = VALID; 2375 } 2376 2377 /* 2378 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2379 * store the displayed text and remember where screen lines start. 2380 */ 2381 typedef struct msgchunk_S msgchunk_T; 2382 struct msgchunk_S 2383 { 2384 msgchunk_T *sb_next; 2385 msgchunk_T *sb_prev; 2386 char sb_eol; // TRUE when line ends after this text 2387 int sb_msg_col; // column in which text starts 2388 int sb_attr; // text attributes 2389 char_u sb_text[1]; // text to be displayed, actually longer 2390 }; 2391 2392 static msgchunk_T *last_msgchunk = NULL; // last displayed text 2393 2394 static msgchunk_T *msg_sb_start(msgchunk_T *mps); 2395 2396 typedef enum { 2397 SB_CLEAR_NONE = 0, 2398 SB_CLEAR_ALL, 2399 SB_CLEAR_CMDLINE_BUSY, 2400 SB_CLEAR_CMDLINE_DONE 2401 } sb_clear_T; 2402 2403 // When to clear text on next msg. 2404 static sb_clear_T do_clear_sb_text = SB_CLEAR_NONE; 2405 2406 /* 2407 * Store part of a printed message for displaying when scrolling back. 2408 */ 2409 static void 2410 store_sb_text( 2411 char_u **sb_str, // start of string 2412 char_u *s, // just after string 2413 int attr, 2414 int *sb_col, 2415 int finish) // line ends 2416 { 2417 msgchunk_T *mp; 2418 2419 if (do_clear_sb_text == SB_CLEAR_ALL 2420 || do_clear_sb_text == SB_CLEAR_CMDLINE_DONE) 2421 { 2422 clear_sb_text(do_clear_sb_text == SB_CLEAR_ALL); 2423 do_clear_sb_text = SB_CLEAR_NONE; 2424 } 2425 2426 if (s > *sb_str) 2427 { 2428 mp = alloc(sizeof(msgchunk_T) + (s - *sb_str)); 2429 if (mp != NULL) 2430 { 2431 mp->sb_eol = finish; 2432 mp->sb_msg_col = *sb_col; 2433 mp->sb_attr = attr; 2434 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2435 2436 if (last_msgchunk == NULL) 2437 { 2438 last_msgchunk = mp; 2439 mp->sb_prev = NULL; 2440 } 2441 else 2442 { 2443 mp->sb_prev = last_msgchunk; 2444 last_msgchunk->sb_next = mp; 2445 last_msgchunk = mp; 2446 } 2447 mp->sb_next = NULL; 2448 } 2449 } 2450 else if (finish && last_msgchunk != NULL) 2451 last_msgchunk->sb_eol = TRUE; 2452 2453 *sb_str = s; 2454 *sb_col = 0; 2455 } 2456 2457 /* 2458 * Finished showing messages, clear the scroll-back text on the next message. 2459 */ 2460 void 2461 may_clear_sb_text(void) 2462 { 2463 do_clear_sb_text = SB_CLEAR_ALL; 2464 } 2465 2466 /* 2467 * Starting to edit the command line, do not clear messages now. 2468 */ 2469 void 2470 sb_text_start_cmdline(void) 2471 { 2472 do_clear_sb_text = SB_CLEAR_CMDLINE_BUSY; 2473 msg_sb_eol(); 2474 } 2475 2476 /* 2477 * Ending to edit the command line. Clear old lines but the last one later. 2478 */ 2479 void 2480 sb_text_end_cmdline(void) 2481 { 2482 do_clear_sb_text = SB_CLEAR_CMDLINE_DONE; 2483 } 2484 2485 /* 2486 * Clear any text remembered for scrolling back. 2487 * When "all" is FALSE keep the last line. 2488 * Called when redrawing the screen. 2489 */ 2490 void 2491 clear_sb_text(int all) 2492 { 2493 msgchunk_T *mp; 2494 msgchunk_T **lastp; 2495 2496 if (all) 2497 lastp = &last_msgchunk; 2498 else 2499 { 2500 if (last_msgchunk == NULL) 2501 return; 2502 lastp = &last_msgchunk->sb_prev; 2503 } 2504 2505 while (*lastp != NULL) 2506 { 2507 mp = (*lastp)->sb_prev; 2508 vim_free(*lastp); 2509 *lastp = mp; 2510 } 2511 } 2512 2513 /* 2514 * "g<" command. 2515 */ 2516 void 2517 show_sb_text(void) 2518 { 2519 msgchunk_T *mp; 2520 2521 // Only show something if there is more than one line, otherwise it looks 2522 // weird, typing a command without output results in one line. 2523 mp = msg_sb_start(last_msgchunk); 2524 if (mp == NULL || mp->sb_prev == NULL) 2525 vim_beep(BO_MESS); 2526 else 2527 { 2528 do_more_prompt('G'); 2529 wait_return(FALSE); 2530 } 2531 } 2532 2533 /* 2534 * Move to the start of screen line in already displayed text. 2535 */ 2536 static msgchunk_T * 2537 msg_sb_start(msgchunk_T *mps) 2538 { 2539 msgchunk_T *mp = mps; 2540 2541 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2542 mp = mp->sb_prev; 2543 return mp; 2544 } 2545 2546 /* 2547 * Mark the last message chunk as finishing the line. 2548 */ 2549 void 2550 msg_sb_eol(void) 2551 { 2552 if (last_msgchunk != NULL) 2553 last_msgchunk->sb_eol = TRUE; 2554 } 2555 2556 /* 2557 * Display a screen line from previously displayed text at row "row". 2558 * Returns a pointer to the text for the next line (can be NULL). 2559 */ 2560 static msgchunk_T * 2561 disp_sb_line(int row, msgchunk_T *smp) 2562 { 2563 msgchunk_T *mp = smp; 2564 char_u *p; 2565 2566 for (;;) 2567 { 2568 msg_row = row; 2569 msg_col = mp->sb_msg_col; 2570 p = mp->sb_text; 2571 if (*p == '\n') // don't display the line break 2572 ++p; 2573 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2574 if (mp->sb_eol || mp->sb_next == NULL) 2575 break; 2576 mp = mp->sb_next; 2577 } 2578 return mp->sb_next; 2579 } 2580 2581 /* 2582 * Output any postponed text for msg_puts_attr_len(). 2583 */ 2584 static void 2585 t_puts( 2586 int *t_col, 2587 char_u *t_s, 2588 char_u *s, 2589 int attr) 2590 { 2591 // output postponed text 2592 msg_didout = TRUE; // remember that line is not empty 2593 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2594 msg_col += *t_col; 2595 *t_col = 0; 2596 // If the string starts with a composing character don't increment the 2597 // column position for it. 2598 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2599 --msg_col; 2600 if (msg_col >= Columns) 2601 { 2602 msg_col = 0; 2603 ++msg_row; 2604 } 2605 } 2606 2607 /* 2608 * Returns TRUE when messages should be printed with mch_errmsg(). 2609 * This is used when there is no valid screen, so we can see error messages. 2610 * If termcap is not active, we may be writing in an alternate console 2611 * window, cursor positioning may not work correctly (window size may be 2612 * different, e.g. for Win32 console) or we just don't know where the 2613 * cursor is. 2614 */ 2615 int 2616 msg_use_printf(void) 2617 { 2618 return (!msg_check_screen() 2619 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL)) 2620 # ifdef VIMDLL 2621 || (!gui.in_use && !termcap_active) 2622 # else 2623 || !termcap_active 2624 # endif 2625 #endif 2626 || (swapping_screen() && !termcap_active) 2627 ); 2628 } 2629 2630 /* 2631 * Print a message when there is no valid screen. 2632 */ 2633 static void 2634 msg_puts_printf(char_u *str, int maxlen) 2635 { 2636 char_u *s = str; 2637 char_u *buf = NULL; 2638 char_u *p = s; 2639 2640 #ifdef MSWIN 2641 if (!(silent_mode && p_verbose == 0)) 2642 mch_settmode(TMODE_COOK); // handle CR and NL correctly 2643 #endif 2644 while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL) 2645 { 2646 if (!(silent_mode && p_verbose == 0)) 2647 { 2648 // NL --> CR NL translation (for Unix, not for "--version") 2649 if (*s == NL) 2650 { 2651 int n = (int)(s - p); 2652 2653 buf = alloc(n + 3); 2654 if (buf != NULL) 2655 { 2656 memcpy(buf, p, n); 2657 if (!info_message) 2658 buf[n++] = CAR; 2659 buf[n++] = NL; 2660 buf[n++] = NUL; 2661 if (info_message) // informative message, not an error 2662 mch_msg((char *)buf); 2663 else 2664 mch_errmsg((char *)buf); 2665 vim_free(buf); 2666 } 2667 p = s + 1; 2668 } 2669 } 2670 2671 // primitive way to compute the current column 2672 #ifdef FEAT_RIGHTLEFT 2673 if (cmdmsg_rl) 2674 { 2675 if (*s == CAR || *s == NL) 2676 msg_col = Columns - 1; 2677 else 2678 --msg_col; 2679 } 2680 else 2681 #endif 2682 { 2683 if (*s == CAR || *s == NL) 2684 msg_col = 0; 2685 else 2686 ++msg_col; 2687 } 2688 ++s; 2689 } 2690 2691 if (*p != NUL && !(silent_mode && p_verbose == 0)) 2692 { 2693 int c = -1; 2694 2695 if (maxlen > 0 && STRLEN(p) > (size_t)maxlen) 2696 { 2697 c = p[maxlen]; 2698 p[maxlen] = 0; 2699 } 2700 if (info_message) 2701 mch_msg((char *)p); 2702 else 2703 mch_errmsg((char *)p); 2704 if (c != -1) 2705 p[maxlen] = c; 2706 } 2707 2708 msg_didout = TRUE; // assume that line is not empty 2709 2710 #ifdef MSWIN 2711 if (!(silent_mode && p_verbose == 0)) 2712 mch_settmode(TMODE_RAW); 2713 #endif 2714 } 2715 2716 /* 2717 * Show the more-prompt and handle the user response. 2718 * This takes care of scrolling back and displaying previously displayed text. 2719 * When at hit-enter prompt "typed_char" is the already typed character, 2720 * otherwise it's NUL. 2721 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2722 */ 2723 static int 2724 do_more_prompt(int typed_char) 2725 { 2726 static int entered = FALSE; 2727 int used_typed_char = typed_char; 2728 int oldState = State; 2729 int c; 2730 #ifdef FEAT_CON_DIALOG 2731 int retval = FALSE; 2732 #endif 2733 int toscroll; 2734 msgchunk_T *mp_last = NULL; 2735 msgchunk_T *mp; 2736 int i; 2737 2738 // We get called recursively when a timer callback outputs a message. In 2739 // that case don't show another prompt. Also when at the hit-Enter prompt 2740 // and nothing was typed. 2741 if (entered || (State == HITRETURN && typed_char == 0)) 2742 return FALSE; 2743 entered = TRUE; 2744 2745 if (typed_char == 'G') 2746 { 2747 // "g<": Find first line on the last page. 2748 mp_last = msg_sb_start(last_msgchunk); 2749 for (i = 0; i < Rows - 2 && mp_last != NULL 2750 && mp_last->sb_prev != NULL; ++i) 2751 mp_last = msg_sb_start(mp_last->sb_prev); 2752 } 2753 2754 State = ASKMORE; 2755 setmouse(); 2756 if (typed_char == NUL) 2757 msg_moremsg(FALSE); 2758 for (;;) 2759 { 2760 /* 2761 * Get a typed character directly from the user. 2762 */ 2763 if (used_typed_char != NUL) 2764 { 2765 c = used_typed_char; // was typed at hit-enter prompt 2766 used_typed_char = NUL; 2767 } 2768 else 2769 c = get_keystroke(); 2770 2771 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2772 if (c == K_MENU) 2773 { 2774 int idx = get_menu_index(current_menu, ASKMORE); 2775 2776 // Used a menu. If it starts with CTRL-Y, it must 2777 // be a "Copy" for the clipboard. Otherwise 2778 // assume that we end 2779 if (idx == MENU_INDEX_INVALID) 2780 continue; 2781 c = *current_menu->strings[idx]; 2782 if (c != NUL && current_menu->strings[idx][1] != NUL) 2783 ins_typebuf(current_menu->strings[idx] + 1, 2784 current_menu->noremap[idx], 0, TRUE, 2785 current_menu->silent[idx]); 2786 } 2787 #endif 2788 2789 toscroll = 0; 2790 switch (c) 2791 { 2792 case BS: // scroll one line back 2793 case K_BS: 2794 case 'k': 2795 case K_UP: 2796 toscroll = -1; 2797 break; 2798 2799 case CAR: // one extra line 2800 case NL: 2801 case 'j': 2802 case K_DOWN: 2803 toscroll = 1; 2804 break; 2805 2806 case 'u': // Up half a page 2807 toscroll = -(Rows / 2); 2808 break; 2809 2810 case 'd': // Down half a page 2811 toscroll = Rows / 2; 2812 break; 2813 2814 case 'b': // one page back 2815 case K_PAGEUP: 2816 toscroll = -(Rows - 1); 2817 break; 2818 2819 case ' ': // one extra page 2820 case 'f': 2821 case K_PAGEDOWN: 2822 case K_LEFTMOUSE: 2823 toscroll = Rows - 1; 2824 break; 2825 2826 case 'g': // all the way back to the start 2827 toscroll = -999999; 2828 break; 2829 2830 case 'G': // all the way to the end 2831 toscroll = 999999; 2832 lines_left = 999999; 2833 break; 2834 2835 case ':': // start new command line 2836 #ifdef FEAT_CON_DIALOG 2837 if (!confirm_msg_used) 2838 #endif 2839 { 2840 // Since got_int is set all typeahead will be flushed, but we 2841 // want to keep this ':', remember that in a special way. 2842 typeahead_noflush(':'); 2843 #ifdef FEAT_TERMINAL 2844 skip_term_loop = TRUE; 2845 #endif 2846 cmdline_row = Rows - 1; // put ':' on this line 2847 skip_redraw = TRUE; // skip redraw once 2848 need_wait_return = FALSE; // don't wait in main() 2849 } 2850 // FALLTHROUGH 2851 case 'q': // quit 2852 case Ctrl_C: 2853 case ESC: 2854 #ifdef FEAT_CON_DIALOG 2855 if (confirm_msg_used) 2856 { 2857 // Jump to the choices of the dialog. 2858 retval = TRUE; 2859 } 2860 else 2861 #endif 2862 { 2863 got_int = TRUE; 2864 quit_more = TRUE; 2865 } 2866 // When there is some more output (wrapping line) display that 2867 // without another prompt. 2868 lines_left = Rows - 1; 2869 break; 2870 2871 #ifdef FEAT_CLIPBOARD 2872 case Ctrl_Y: 2873 // Strange way to allow copying (yanking) a modeless 2874 // selection at the more prompt. Use CTRL-Y, 2875 // because the same is used in Cmdline-mode and at the 2876 // hit-enter prompt. However, scrolling one line up 2877 // might be expected... 2878 if (clip_star.state == SELECT_DONE) 2879 clip_copy_modeless_selection(TRUE); 2880 continue; 2881 #endif 2882 default: // no valid response 2883 msg_moremsg(TRUE); 2884 continue; 2885 } 2886 2887 if (toscroll != 0) 2888 { 2889 if (toscroll < 0) 2890 { 2891 // go to start of last line 2892 if (mp_last == NULL) 2893 mp = msg_sb_start(last_msgchunk); 2894 else if (mp_last->sb_prev != NULL) 2895 mp = msg_sb_start(mp_last->sb_prev); 2896 else 2897 mp = NULL; 2898 2899 // go to start of line at top of the screen 2900 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2901 ++i) 2902 mp = msg_sb_start(mp->sb_prev); 2903 2904 if (mp != NULL && mp->sb_prev != NULL) 2905 { 2906 // Find line to be displayed at top. 2907 for (i = 0; i > toscroll; --i) 2908 { 2909 if (mp == NULL || mp->sb_prev == NULL) 2910 break; 2911 mp = msg_sb_start(mp->sb_prev); 2912 if (mp_last == NULL) 2913 mp_last = msg_sb_start(last_msgchunk); 2914 else 2915 mp_last = msg_sb_start(mp_last->sb_prev); 2916 } 2917 2918 if (toscroll == -1 && screen_ins_lines(0, 0, 1, 2919 (int)Rows, 0, NULL) == OK) 2920 { 2921 // display line at top 2922 (void)disp_sb_line(0, mp); 2923 } 2924 else 2925 { 2926 // redisplay all lines 2927 screenclear(); 2928 for (i = 0; mp != NULL && i < Rows - 1; ++i) 2929 { 2930 mp = disp_sb_line(i, mp); 2931 ++msg_scrolled; 2932 } 2933 } 2934 toscroll = 0; 2935 } 2936 } 2937 else 2938 { 2939 // First display any text that we scrolled back. 2940 while (toscroll > 0 && mp_last != NULL) 2941 { 2942 // scroll up, display line at bottom 2943 msg_scroll_up(); 2944 inc_msg_scrolled(); 2945 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2946 (int)Columns, ' ', ' ', 0); 2947 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2948 --toscroll; 2949 } 2950 } 2951 2952 if (toscroll <= 0) 2953 { 2954 // displayed the requested text, more prompt again 2955 screen_fill((int)Rows - 1, (int)Rows, 0, 2956 (int)Columns, ' ', ' ', 0); 2957 msg_moremsg(FALSE); 2958 continue; 2959 } 2960 2961 // display more text, return to caller 2962 lines_left = toscroll; 2963 } 2964 2965 break; 2966 } 2967 2968 // clear the --more-- message 2969 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2970 State = oldState; 2971 setmouse(); 2972 if (quit_more) 2973 { 2974 msg_row = Rows - 1; 2975 msg_col = 0; 2976 } 2977 #ifdef FEAT_RIGHTLEFT 2978 else if (cmdmsg_rl) 2979 msg_col = Columns - 1; 2980 #endif 2981 2982 entered = FALSE; 2983 #ifdef FEAT_CON_DIALOG 2984 return retval; 2985 #else 2986 return FALSE; 2987 #endif 2988 } 2989 2990 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 2991 2992 #ifdef mch_errmsg 2993 # undef mch_errmsg 2994 #endif 2995 #ifdef mch_msg 2996 # undef mch_msg 2997 #endif 2998 2999 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL)) 3000 static void 3001 mch_errmsg_c(char *str) 3002 { 3003 int len = (int)STRLEN(str); 3004 DWORD nwrite = 0; 3005 DWORD mode = 0; 3006 HANDLE h = GetStdHandle(STD_ERROR_HANDLE); 3007 3008 if (GetConsoleMode(h, &mode) && enc_codepage >= 0 3009 && (int)GetConsoleCP() != enc_codepage) 3010 { 3011 WCHAR *w = enc_to_utf16((char_u *)str, &len); 3012 3013 WriteConsoleW(h, w, len, &nwrite, NULL); 3014 vim_free(w); 3015 } 3016 else 3017 { 3018 fprintf(stderr, "%s", str); 3019 } 3020 } 3021 #endif 3022 3023 /* 3024 * Give an error message. To be used when the screen hasn't been initialized 3025 * yet. When stderr can't be used, collect error messages until the GUI has 3026 * started and they can be displayed in a message box. 3027 */ 3028 void 3029 mch_errmsg(char *str) 3030 { 3031 #if !defined(MSWIN) || defined(FEAT_GUI_MSWIN) 3032 int len; 3033 #endif 3034 3035 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) && !defined(VIMDLL) 3036 // On Unix use stderr if it's a tty. 3037 // When not going to start the GUI also use stderr. 3038 // On Mac, when started from Finder, stderr is the console. 3039 if ( 3040 # ifdef UNIX 3041 # ifdef MACOS_X 3042 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 3043 # else 3044 isatty(2) 3045 # endif 3046 # ifdef FEAT_GUI 3047 || 3048 # endif 3049 # endif 3050 # ifdef FEAT_GUI 3051 !(gui.in_use || gui.starting) 3052 # endif 3053 ) 3054 { 3055 fprintf(stderr, "%s", str); 3056 return; 3057 } 3058 #endif 3059 3060 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL)) 3061 # ifdef VIMDLL 3062 if (!(gui.in_use || gui.starting)) 3063 # endif 3064 { 3065 mch_errmsg_c(str); 3066 return; 3067 } 3068 #endif 3069 3070 #if !defined(MSWIN) || defined(FEAT_GUI_MSWIN) 3071 // avoid a delay for a message that isn't there 3072 emsg_on_display = FALSE; 3073 3074 len = (int)STRLEN(str) + 1; 3075 if (error_ga.ga_growsize == 0) 3076 { 3077 error_ga.ga_growsize = 80; 3078 error_ga.ga_itemsize = 1; 3079 } 3080 if (ga_grow(&error_ga, len) == OK) 3081 { 3082 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 3083 (char_u *)str, len); 3084 # ifdef UNIX 3085 // remove CR characters, they are displayed 3086 { 3087 char_u *p; 3088 3089 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 3090 for (;;) 3091 { 3092 p = vim_strchr(p, '\r'); 3093 if (p == NULL) 3094 break; 3095 *p = ' '; 3096 } 3097 } 3098 # endif 3099 --len; // don't count the NUL at the end 3100 error_ga.ga_len += len; 3101 } 3102 #endif 3103 } 3104 3105 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL)) 3106 static void 3107 mch_msg_c(char *str) 3108 { 3109 int len = (int)STRLEN(str); 3110 DWORD nwrite = 0; 3111 DWORD mode; 3112 HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE); 3113 3114 3115 if (GetConsoleMode(h, &mode) && enc_codepage >= 0 3116 && (int)GetConsoleCP() != enc_codepage) 3117 { 3118 WCHAR *w = enc_to_utf16((char_u *)str, &len); 3119 3120 WriteConsoleW(h, w, len, &nwrite, NULL); 3121 vim_free(w); 3122 } 3123 else 3124 { 3125 printf("%s", str); 3126 } 3127 } 3128 #endif 3129 3130 /* 3131 * Give a message. To be used when the screen hasn't been initialized yet. 3132 * When there is no tty, collect messages until the GUI has started and they 3133 * can be displayed in a message box. 3134 */ 3135 void 3136 mch_msg(char *str) 3137 { 3138 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) && !defined(VIMDLL) 3139 // On Unix use stdout if we have a tty. This allows "vim -h | more" and 3140 // uses mch_errmsg() when started from the desktop. 3141 // When not going to start the GUI also use stdout. 3142 // On Mac, when started from Finder, stderr is the console. 3143 if ( 3144 # ifdef UNIX 3145 # ifdef MACOS_X 3146 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 3147 # else 3148 isatty(2) 3149 # endif 3150 # ifdef FEAT_GUI 3151 || 3152 # endif 3153 # endif 3154 # ifdef FEAT_GUI 3155 !(gui.in_use || gui.starting) 3156 # endif 3157 ) 3158 { 3159 printf("%s", str); 3160 return; 3161 } 3162 #endif 3163 3164 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL)) 3165 # ifdef VIMDLL 3166 if (!(gui.in_use || gui.starting)) 3167 # endif 3168 { 3169 mch_msg_c(str); 3170 return; 3171 } 3172 #endif 3173 #if !defined(MSWIN) || defined(FEAT_GUI_MSWIN) 3174 mch_errmsg(str); 3175 #endif 3176 } 3177 #endif // USE_MCH_ERRMSG 3178 3179 /* 3180 * Put a character on the screen at the current message position and advance 3181 * to the next position. Only for printable ASCII! 3182 */ 3183 static void 3184 msg_screen_putchar(int c, int attr) 3185 { 3186 msg_didout = TRUE; // remember that line is not empty 3187 screen_putchar(c, msg_row, msg_col, attr); 3188 #ifdef FEAT_RIGHTLEFT 3189 if (cmdmsg_rl) 3190 { 3191 if (--msg_col == 0) 3192 { 3193 msg_col = Columns; 3194 ++msg_row; 3195 } 3196 } 3197 else 3198 #endif 3199 { 3200 if (++msg_col >= Columns) 3201 { 3202 msg_col = 0; 3203 ++msg_row; 3204 } 3205 } 3206 } 3207 3208 static void 3209 msg_moremsg(int full) 3210 { 3211 int attr; 3212 char_u *s = (char_u *)_("-- More --"); 3213 3214 attr = HL_ATTR(HLF_M); 3215 screen_puts(s, (int)Rows - 1, 0, attr); 3216 if (full) 3217 screen_puts((char_u *) 3218 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 3219 (int)Rows - 1, vim_strsize(s), attr); 3220 } 3221 3222 /* 3223 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 3224 * exmode_active. 3225 */ 3226 void 3227 repeat_message(void) 3228 { 3229 if (State == ASKMORE) 3230 { 3231 msg_moremsg(TRUE); // display --more-- message again 3232 msg_row = Rows - 1; 3233 } 3234 #ifdef FEAT_CON_DIALOG 3235 else if (State == CONFIRM) 3236 { 3237 display_confirm_msg(); // display ":confirm" message again 3238 msg_row = Rows - 1; 3239 } 3240 #endif 3241 else if (State == EXTERNCMD) 3242 { 3243 windgoto(msg_row, msg_col); // put cursor back 3244 } 3245 else if (State == HITRETURN || State == SETWSIZE) 3246 { 3247 if (msg_row == Rows - 1) 3248 { 3249 // Avoid drawing the "hit-enter" prompt below the previous one, 3250 // overwrite it. Esp. useful when regaining focus and a 3251 // FocusGained autocmd exists but didn't draw anything. 3252 msg_didout = FALSE; 3253 msg_col = 0; 3254 msg_clr_eos(); 3255 } 3256 hit_return_msg(); 3257 msg_row = Rows - 1; 3258 } 3259 } 3260 3261 /* 3262 * msg_check_screen - check if the screen is initialized. 3263 * Also check msg_row and msg_col, if they are too big it may cause a crash. 3264 * While starting the GUI the terminal codes will be set for the GUI, but the 3265 * output goes to the terminal. Don't use the terminal codes then. 3266 */ 3267 static int 3268 msg_check_screen(void) 3269 { 3270 if (!full_screen || !screen_valid(FALSE)) 3271 return FALSE; 3272 3273 if (msg_row >= Rows) 3274 msg_row = Rows - 1; 3275 if (msg_col >= Columns) 3276 msg_col = Columns - 1; 3277 return TRUE; 3278 } 3279 3280 /* 3281 * Clear from current message position to end of screen. 3282 * Skip this when ":silent" was used, no need to clear for redirection. 3283 */ 3284 void 3285 msg_clr_eos(void) 3286 { 3287 if (msg_silent == 0) 3288 msg_clr_eos_force(); 3289 } 3290 3291 /* 3292 * Clear from current message position to end of screen. 3293 * Note: msg_col is not updated, so we remember the end of the message 3294 * for msg_check(). 3295 */ 3296 void 3297 msg_clr_eos_force(void) 3298 { 3299 if (msg_use_printf()) 3300 { 3301 if (full_screen) // only when termcap codes are valid 3302 { 3303 if (*T_CD) 3304 out_str(T_CD); // clear to end of display 3305 else if (*T_CE) 3306 out_str(T_CE); // clear to end of line 3307 } 3308 } 3309 else 3310 { 3311 #ifdef FEAT_RIGHTLEFT 3312 if (cmdmsg_rl) 3313 { 3314 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 3315 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3316 } 3317 else 3318 #endif 3319 { 3320 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 3321 ' ', ' ', 0); 3322 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3323 } 3324 } 3325 } 3326 3327 /* 3328 * Clear the command line. 3329 */ 3330 void 3331 msg_clr_cmdline(void) 3332 { 3333 msg_row = cmdline_row; 3334 msg_col = 0; 3335 msg_clr_eos_force(); 3336 } 3337 3338 /* 3339 * end putting a message on the screen 3340 * call wait_return if the message does not fit in the available space 3341 * return TRUE if wait_return not called. 3342 */ 3343 int 3344 msg_end(void) 3345 { 3346 /* 3347 * If the string is larger than the window, 3348 * or the ruler option is set and we run into it, 3349 * we have to redraw the window. 3350 * Do not do this if we are abandoning the file or editing the command line. 3351 */ 3352 if (!exiting && need_wait_return && !(State & CMDLINE)) 3353 { 3354 wait_return(FALSE); 3355 return FALSE; 3356 } 3357 out_flush(); 3358 return TRUE; 3359 } 3360 3361 /* 3362 * If the written message runs into the shown command or ruler, we have to 3363 * wait for hit-return and redraw the window later. 3364 */ 3365 void 3366 msg_check(void) 3367 { 3368 if (msg_row == Rows - 1 && msg_col >= sc_col) 3369 { 3370 need_wait_return = TRUE; 3371 redraw_cmdline = TRUE; 3372 } 3373 } 3374 3375 /* 3376 * May write a string to the redirection file. 3377 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3378 */ 3379 static void 3380 redir_write(char_u *str, int maxlen) 3381 { 3382 char_u *s = str; 3383 static int cur_col = 0; 3384 3385 // Don't do anything for displaying prompts and the like. 3386 if (redir_off) 3387 return; 3388 3389 // If 'verbosefile' is set prepare for writing in that file. 3390 if (*p_vfile != NUL && verbose_fd == NULL) 3391 verbose_open(); 3392 3393 if (redirecting()) 3394 { 3395 // If the string doesn't start with CR or NL, go to msg_col 3396 if (*s != '\n' && *s != '\r') 3397 { 3398 while (cur_col < msg_col) 3399 { 3400 #ifdef FEAT_EVAL 3401 if (redir_execute) 3402 execute_redir_str((char_u *)" ", -1); 3403 else if (redir_reg) 3404 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 3405 else if (redir_vname) 3406 var_redir_str((char_u *)" ", -1); 3407 else 3408 #endif 3409 if (redir_fd != NULL) 3410 fputs(" ", redir_fd); 3411 if (verbose_fd != NULL) 3412 fputs(" ", verbose_fd); 3413 ++cur_col; 3414 } 3415 } 3416 3417 #ifdef FEAT_EVAL 3418 if (redir_execute) 3419 execute_redir_str(s, maxlen); 3420 else if (redir_reg) 3421 write_reg_contents(redir_reg, s, maxlen, TRUE); 3422 else if (redir_vname) 3423 var_redir_str(s, maxlen); 3424 #endif 3425 3426 // Write and adjust the current column. 3427 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3428 { 3429 #ifdef FEAT_EVAL 3430 if (!redir_reg && !redir_vname && !redir_execute) 3431 #endif 3432 if (redir_fd != NULL) 3433 putc(*s, redir_fd); 3434 if (verbose_fd != NULL) 3435 putc(*s, verbose_fd); 3436 if (*s == '\r' || *s == '\n') 3437 cur_col = 0; 3438 else if (*s == '\t') 3439 cur_col += (8 - cur_col % 8); 3440 else 3441 ++cur_col; 3442 ++s; 3443 } 3444 3445 if (msg_silent != 0) // should update msg_col 3446 msg_col = cur_col; 3447 } 3448 } 3449 3450 int 3451 redirecting(void) 3452 { 3453 return redir_fd != NULL || *p_vfile != NUL 3454 #ifdef FEAT_EVAL 3455 || redir_reg || redir_vname || redir_execute 3456 #endif 3457 ; 3458 } 3459 3460 /* 3461 * Before giving verbose message. 3462 * Must always be called paired with verbose_leave()! 3463 */ 3464 void 3465 verbose_enter(void) 3466 { 3467 if (*p_vfile != NUL) 3468 ++msg_silent; 3469 } 3470 3471 /* 3472 * After giving verbose message. 3473 * Must always be called paired with verbose_enter()! 3474 */ 3475 void 3476 verbose_leave(void) 3477 { 3478 if (*p_vfile != NUL) 3479 if (--msg_silent < 0) 3480 msg_silent = 0; 3481 } 3482 3483 /* 3484 * Like verbose_enter() and set msg_scroll when displaying the message. 3485 */ 3486 void 3487 verbose_enter_scroll(void) 3488 { 3489 if (*p_vfile != NUL) 3490 ++msg_silent; 3491 else 3492 // always scroll up, don't overwrite 3493 msg_scroll = TRUE; 3494 } 3495 3496 /* 3497 * Like verbose_leave() and set cmdline_row when displaying the message. 3498 */ 3499 void 3500 verbose_leave_scroll(void) 3501 { 3502 if (*p_vfile != NUL) 3503 { 3504 if (--msg_silent < 0) 3505 msg_silent = 0; 3506 } 3507 else 3508 cmdline_row = msg_row; 3509 } 3510 3511 /* 3512 * Called when 'verbosefile' is set: stop writing to the file. 3513 */ 3514 void 3515 verbose_stop(void) 3516 { 3517 if (verbose_fd != NULL) 3518 { 3519 fclose(verbose_fd); 3520 verbose_fd = NULL; 3521 } 3522 verbose_did_open = FALSE; 3523 } 3524 3525 /* 3526 * Open the file 'verbosefile'. 3527 * Return FAIL or OK. 3528 */ 3529 int 3530 verbose_open(void) 3531 { 3532 if (verbose_fd == NULL && !verbose_did_open) 3533 { 3534 // Only give the error message once. 3535 verbose_did_open = TRUE; 3536 3537 verbose_fd = mch_fopen((char *)p_vfile, "a"); 3538 if (verbose_fd == NULL) 3539 { 3540 semsg(_(e_notopen), p_vfile); 3541 return FAIL; 3542 } 3543 } 3544 return OK; 3545 } 3546 3547 /* 3548 * Give a warning message (for searching). 3549 * Use 'w' highlighting and may repeat the message after redrawing 3550 */ 3551 void 3552 give_warning(char_u *message, int hl) 3553 { 3554 // Don't do this for ":silent". 3555 if (msg_silent != 0) 3556 return; 3557 3558 // Don't want a hit-enter prompt here. 3559 ++no_wait_return; 3560 3561 #ifdef FEAT_EVAL 3562 set_vim_var_string(VV_WARNINGMSG, message, -1); 3563 #endif 3564 VIM_CLEAR(keep_msg); 3565 if (hl) 3566 keep_msg_attr = HL_ATTR(HLF_W); 3567 else 3568 keep_msg_attr = 0; 3569 if (msg_attr((char *)message, keep_msg_attr) && msg_scrolled == 0) 3570 set_keep_msg(message, keep_msg_attr); 3571 msg_didout = FALSE; // overwrite this message 3572 msg_nowait = TRUE; // don't wait for this message 3573 msg_col = 0; 3574 3575 --no_wait_return; 3576 } 3577 3578 #if defined(FEAT_EVAL) || defined(PROTO) 3579 void 3580 give_warning2(char_u *message, char_u *a1, int hl) 3581 { 3582 if (IObuff == NULL) 3583 { 3584 // Very early in initialisation and already something wrong, just give 3585 // the raw message so the user at least gets a hint. 3586 give_warning((char_u *)message, hl); 3587 } 3588 else 3589 { 3590 vim_snprintf((char *)IObuff, IOSIZE, (char *)message, a1); 3591 give_warning(IObuff, hl); 3592 } 3593 } 3594 #endif 3595 3596 /* 3597 * Advance msg cursor to column "col". 3598 */ 3599 void 3600 msg_advance(int col) 3601 { 3602 if (msg_silent != 0) // nothing to advance to 3603 { 3604 msg_col = col; // for redirection, may fill it up later 3605 return; 3606 } 3607 if (col >= Columns) // not enough room 3608 col = Columns - 1; 3609 #ifdef FEAT_RIGHTLEFT 3610 if (cmdmsg_rl) 3611 while (msg_col > Columns - col) 3612 msg_putchar(' '); 3613 else 3614 #endif 3615 while (msg_col < col) 3616 msg_putchar(' '); 3617 } 3618 3619 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3620 /* 3621 * Used for "confirm()" function, and the :confirm command prefix. 3622 * Versions which haven't got flexible dialogs yet, and console 3623 * versions, get this generic handler which uses the command line. 3624 * 3625 * type = one of: 3626 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3627 * title = title string (can be NULL for default) 3628 * (neither used in console dialogs at the moment) 3629 * 3630 * Format of the "buttons" string: 3631 * "Button1Name\nButton2Name\nButton3Name" 3632 * The first button should normally be the default/accept 3633 * The second button should be the 'Cancel' button 3634 * Other buttons- use your imagination! 3635 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3636 * different letter. 3637 */ 3638 int 3639 do_dialog( 3640 int type UNUSED, 3641 char_u *title UNUSED, 3642 char_u *message, 3643 char_u *buttons, 3644 int dfltbutton, 3645 char_u *textfield UNUSED, // IObuff for inputdialog(), NULL 3646 // otherwise 3647 int ex_cmd) // when TRUE pressing : accepts default and starts 3648 // Ex command 3649 { 3650 int oldState; 3651 int retval = 0; 3652 char_u *hotkeys; 3653 int c; 3654 int i; 3655 3656 #ifndef NO_CONSOLE 3657 // Don't output anything in silent mode ("ex -s") 3658 if (silent_mode) 3659 return dfltbutton; // return default option 3660 #endif 3661 3662 #ifdef FEAT_GUI_DIALOG 3663 // When GUI is running and 'c' not in 'guioptions', use the GUI dialog 3664 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3665 { 3666 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3667 textfield, ex_cmd); 3668 // avoid a hit-enter prompt without clearing the cmdline 3669 need_wait_return = FALSE; 3670 emsg_on_display = FALSE; 3671 cmdline_row = msg_row; 3672 3673 // Flush output to avoid that further messages and redrawing is done 3674 // in the wrong order. 3675 out_flush(); 3676 gui_mch_update(); 3677 3678 return c; 3679 } 3680 #endif 3681 3682 oldState = State; 3683 State = CONFIRM; 3684 setmouse(); 3685 3686 /* 3687 * Since we wait for a keypress, don't make the 3688 * user press RETURN as well afterwards. 3689 */ 3690 ++no_wait_return; 3691 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3692 3693 if (hotkeys != NULL) 3694 { 3695 for (;;) 3696 { 3697 // Get a typed character directly from the user. 3698 c = get_keystroke(); 3699 switch (c) 3700 { 3701 case CAR: // User accepts default option 3702 case NL: 3703 retval = dfltbutton; 3704 break; 3705 case Ctrl_C: // User aborts/cancels 3706 case ESC: 3707 retval = 0; 3708 break; 3709 default: // Could be a hotkey? 3710 if (c < 0) // special keys are ignored here 3711 continue; 3712 if (c == ':' && ex_cmd) 3713 { 3714 retval = dfltbutton; 3715 ins_char_typebuf(':'); 3716 break; 3717 } 3718 3719 // Make the character lowercase, as chars in "hotkeys" are. 3720 c = MB_TOLOWER(c); 3721 retval = 1; 3722 for (i = 0; hotkeys[i]; ++i) 3723 { 3724 if (has_mbyte) 3725 { 3726 if ((*mb_ptr2char)(hotkeys + i) == c) 3727 break; 3728 i += (*mb_ptr2len)(hotkeys + i) - 1; 3729 } 3730 else 3731 if (hotkeys[i] == c) 3732 break; 3733 ++retval; 3734 } 3735 if (hotkeys[i]) 3736 break; 3737 // No hotkey match, so keep waiting 3738 continue; 3739 } 3740 break; 3741 } 3742 3743 vim_free(hotkeys); 3744 } 3745 3746 State = oldState; 3747 setmouse(); 3748 --no_wait_return; 3749 msg_end_prompt(); 3750 3751 return retval; 3752 } 3753 3754 /* 3755 * Copy one character from "*from" to "*to", taking care of multi-byte 3756 * characters. Return the length of the character in bytes. 3757 */ 3758 static int 3759 copy_char( 3760 char_u *from, 3761 char_u *to, 3762 int lowercase) // make character lower case 3763 { 3764 int len; 3765 int c; 3766 3767 if (has_mbyte) 3768 { 3769 if (lowercase) 3770 { 3771 c = MB_TOLOWER((*mb_ptr2char)(from)); 3772 return (*mb_char2bytes)(c, to); 3773 } 3774 else 3775 { 3776 len = (*mb_ptr2len)(from); 3777 mch_memmove(to, from, (size_t)len); 3778 return len; 3779 } 3780 } 3781 else 3782 { 3783 if (lowercase) 3784 *to = (char_u)TOLOWER_LOC(*from); 3785 else 3786 *to = *from; 3787 return 1; 3788 } 3789 } 3790 3791 /* 3792 * Format the dialog string, and display it at the bottom of 3793 * the screen. Return a string of hotkey chars (if defined) for 3794 * each 'button'. If a button has no hotkey defined, the first character of 3795 * the button is used. 3796 * The hotkeys can be multi-byte characters, but without combining chars. 3797 * 3798 * Returns an allocated string with hotkeys, or NULL for error. 3799 */ 3800 static char_u * 3801 msg_show_console_dialog( 3802 char_u *message, 3803 char_u *buttons, 3804 int dfltbutton) 3805 { 3806 int len = 0; 3807 #define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3808 int lenhotkey = HOTK_LEN; // count first button 3809 char_u *hotk = NULL; 3810 char_u *msgp = NULL; 3811 char_u *hotkp = NULL; 3812 char_u *r; 3813 int copy; 3814 #define HAS_HOTKEY_LEN 30 3815 char_u has_hotkey[HAS_HOTKEY_LEN]; 3816 int first_hotkey = FALSE; // first char of button is hotkey 3817 int idx; 3818 3819 has_hotkey[0] = FALSE; 3820 3821 /* 3822 * First loop: compute the size of memory to allocate. 3823 * Second loop: copy to the allocated memory. 3824 */ 3825 for (copy = 0; copy <= 1; ++copy) 3826 { 3827 r = buttons; 3828 idx = 0; 3829 while (*r) 3830 { 3831 if (*r == DLG_BUTTON_SEP) 3832 { 3833 if (copy) 3834 { 3835 *msgp++ = ','; 3836 *msgp++ = ' '; // '\n' -> ', ' 3837 3838 // advance to next hotkey and set default hotkey 3839 if (has_mbyte) 3840 hotkp += STRLEN(hotkp); 3841 else 3842 ++hotkp; 3843 hotkp[copy_char(r + 1, hotkp, TRUE)] = NUL; 3844 if (dfltbutton) 3845 --dfltbutton; 3846 3847 // If no hotkey is specified first char is used. 3848 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3849 first_hotkey = TRUE; 3850 } 3851 else 3852 { 3853 len += 3; // '\n' -> ', '; 'x' -> '(x)' 3854 lenhotkey += HOTK_LEN; // each button needs a hotkey 3855 if (idx < HAS_HOTKEY_LEN - 1) 3856 has_hotkey[++idx] = FALSE; 3857 } 3858 } 3859 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3860 { 3861 if (*r == DLG_HOTKEY_CHAR) 3862 ++r; 3863 first_hotkey = FALSE; 3864 if (copy) 3865 { 3866 if (*r == DLG_HOTKEY_CHAR) // '&&a' -> '&a' 3867 *msgp++ = *r; 3868 else 3869 { 3870 // '&a' -> '[a]' 3871 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3872 msgp += copy_char(r, msgp, FALSE); 3873 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3874 3875 // redefine hotkey 3876 hotkp[copy_char(r, hotkp, TRUE)] = NUL; 3877 } 3878 } 3879 else 3880 { 3881 ++len; // '&a' -> '[a]' 3882 if (idx < HAS_HOTKEY_LEN - 1) 3883 has_hotkey[idx] = TRUE; 3884 } 3885 } 3886 else 3887 { 3888 // everything else copy literally 3889 if (copy) 3890 msgp += copy_char(r, msgp, FALSE); 3891 } 3892 3893 // advance to the next character 3894 MB_PTR_ADV(r); 3895 } 3896 3897 if (copy) 3898 { 3899 *msgp++ = ':'; 3900 *msgp++ = ' '; 3901 *msgp = NUL; 3902 } 3903 else 3904 { 3905 len += (int)(STRLEN(message) 3906 + 2 // for the NL's 3907 + STRLEN(buttons) 3908 + 3); // for the ": " and NUL 3909 lenhotkey++; // for the NUL 3910 3911 // If no hotkey is specified first char is used. 3912 if (!has_hotkey[0]) 3913 { 3914 first_hotkey = TRUE; 3915 len += 2; // "x" -> "[x]" 3916 } 3917 3918 /* 3919 * Now allocate and load the strings 3920 */ 3921 vim_free(confirm_msg); 3922 confirm_msg = alloc(len); 3923 if (confirm_msg == NULL) 3924 return NULL; 3925 *confirm_msg = NUL; 3926 hotk = alloc(lenhotkey); 3927 if (hotk == NULL) 3928 return NULL; 3929 3930 *confirm_msg = '\n'; 3931 STRCPY(confirm_msg + 1, message); 3932 3933 msgp = confirm_msg + 1 + STRLEN(message); 3934 hotkp = hotk; 3935 3936 // Define first default hotkey. Keep the hotkey string NUL 3937 // terminated to avoid reading past the end. 3938 hotkp[copy_char(buttons, hotkp, TRUE)] = NUL; 3939 3940 // Remember where the choices start, displaying starts here when 3941 // "hotkp" typed at the more prompt. 3942 confirm_msg_tail = msgp; 3943 *msgp++ = '\n'; 3944 } 3945 } 3946 3947 display_confirm_msg(); 3948 return hotk; 3949 } 3950 3951 /* 3952 * Display the ":confirm" message. Also called when screen resized. 3953 */ 3954 static void 3955 display_confirm_msg(void) 3956 { 3957 // avoid that 'q' at the more prompt truncates the message here 3958 ++confirm_msg_used; 3959 if (confirm_msg != NULL) 3960 msg_puts_attr((char *)confirm_msg, HL_ATTR(HLF_M)); 3961 --confirm_msg_used; 3962 } 3963 3964 #endif // FEAT_CON_DIALOG 3965 3966 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3967 3968 int 3969 vim_dialog_yesno( 3970 int type, 3971 char_u *title, 3972 char_u *message, 3973 int dflt) 3974 { 3975 if (do_dialog(type, 3976 title == NULL ? (char_u *)_("Question") : title, 3977 message, 3978 (char_u *)_("&Yes\n&No"), dflt, NULL, FALSE) == 1) 3979 return VIM_YES; 3980 return VIM_NO; 3981 } 3982 3983 int 3984 vim_dialog_yesnocancel( 3985 int type, 3986 char_u *title, 3987 char_u *message, 3988 int dflt) 3989 { 3990 switch (do_dialog(type, 3991 title == NULL ? (char_u *)_("Question") : title, 3992 message, 3993 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL, FALSE)) 3994 { 3995 case 1: return VIM_YES; 3996 case 2: return VIM_NO; 3997 } 3998 return VIM_CANCEL; 3999 } 4000 4001 int 4002 vim_dialog_yesnoallcancel( 4003 int type, 4004 char_u *title, 4005 char_u *message, 4006 int dflt) 4007 { 4008 switch (do_dialog(type, 4009 title == NULL ? (char_u *)"Question" : title, 4010 message, 4011 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 4012 dflt, NULL, FALSE)) 4013 { 4014 case 1: return VIM_YES; 4015 case 2: return VIM_NO; 4016 case 3: return VIM_ALL; 4017 case 4: return VIM_DISCARDALL; 4018 } 4019 return VIM_CANCEL; 4020 } 4021 4022 #endif // FEAT_GUI_DIALOG || FEAT_CON_DIALOG 4023 4024 #if defined(FEAT_EVAL) 4025 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 4026 4027 /* 4028 * Get number argument from "idxp" entry in "tvs". First entry is 1. 4029 */ 4030 static varnumber_T 4031 tv_nr(typval_T *tvs, int *idxp) 4032 { 4033 int idx = *idxp - 1; 4034 varnumber_T n = 0; 4035 int err = FALSE; 4036 4037 if (tvs[idx].v_type == VAR_UNKNOWN) 4038 emsg(_(e_printf)); 4039 else 4040 { 4041 ++*idxp; 4042 n = tv_get_number_chk(&tvs[idx], &err); 4043 if (err) 4044 n = 0; 4045 } 4046 return n; 4047 } 4048 4049 /* 4050 * Get string argument from "idxp" entry in "tvs". First entry is 1. 4051 * If "tofree" is NULL tv_get_string_chk() is used. Some types (e.g. List) 4052 * are not converted to a string. 4053 * If "tofree" is not NULL echo_string() is used. All types are converted to 4054 * a string with the same format as ":echo". The caller must free "*tofree". 4055 * Returns NULL for an error. 4056 */ 4057 static char * 4058 tv_str(typval_T *tvs, int *idxp, char_u **tofree) 4059 { 4060 int idx = *idxp - 1; 4061 char *s = NULL; 4062 static char_u numbuf[NUMBUFLEN]; 4063 4064 if (tvs[idx].v_type == VAR_UNKNOWN) 4065 emsg(_(e_printf)); 4066 else 4067 { 4068 ++*idxp; 4069 if (tofree != NULL) 4070 s = (char *)echo_string(&tvs[idx], tofree, numbuf, get_copyID()); 4071 else 4072 s = (char *)tv_get_string_chk(&tvs[idx]); 4073 } 4074 return s; 4075 } 4076 4077 # ifdef FEAT_FLOAT 4078 /* 4079 * Get float argument from "idxp" entry in "tvs". First entry is 1. 4080 */ 4081 static double 4082 tv_float(typval_T *tvs, int *idxp) 4083 { 4084 int idx = *idxp - 1; 4085 double f = 0; 4086 4087 if (tvs[idx].v_type == VAR_UNKNOWN) 4088 emsg(_(e_printf)); 4089 else 4090 { 4091 ++*idxp; 4092 if (tvs[idx].v_type == VAR_FLOAT) 4093 f = tvs[idx].vval.v_float; 4094 else if (tvs[idx].v_type == VAR_NUMBER) 4095 f = (double)tvs[idx].vval.v_number; 4096 else 4097 emsg(_("E807: Expected Float argument for printf()")); 4098 } 4099 return f; 4100 } 4101 # endif 4102 #endif 4103 4104 #ifdef FEAT_FLOAT 4105 /* 4106 * Return the representation of infinity for printf() function: 4107 * "-inf", "inf", "+inf", " inf", "-INF", "INF", "+INF" or " INF". 4108 */ 4109 static const char * 4110 infinity_str(int positive, 4111 char fmt_spec, 4112 int force_sign, 4113 int space_for_positive) 4114 { 4115 static const char *table[] = 4116 { 4117 "-inf", "inf", "+inf", " inf", 4118 "-INF", "INF", "+INF", " INF" 4119 }; 4120 int idx = positive * (1 + force_sign + force_sign * space_for_positive); 4121 4122 if (ASCII_ISUPPER(fmt_spec)) 4123 idx += 4; 4124 return table[idx]; 4125 } 4126 #endif 4127 4128 /* 4129 * This code was included to provide a portable vsnprintf() and snprintf(). 4130 * Some systems may provide their own, but we always use this one for 4131 * consistency. 4132 * 4133 * This code is based on snprintf.c - a portable implementation of snprintf 4134 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 4135 * Included with permission. It was heavily modified to fit in Vim. 4136 * The original code, including useful comments, can be found here: 4137 * http://www.ijs.si/software/snprintf/ 4138 * 4139 * This snprintf() only supports the following conversion specifiers: 4140 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 4141 * with flags: '-', '+', ' ', '0' and '#'. 4142 * An asterisk is supported for field width as well as precision. 4143 * 4144 * Limited support for floating point was added: 'f', 'F', 'e', 'E', 'g', 'G'. 4145 * 4146 * Length modifiers 'h' (short int) and 'l' (long int) and 'll' (long long int) 4147 * are supported. NOTE: for 'll' the argument is varnumber_T or uvarnumber_T. 4148 * 4149 * The locale is not used, the string is used as a byte string. This is only 4150 * relevant for double-byte encodings where the second byte may be '%'. 4151 * 4152 * It is permitted for "str_m" to be zero, and it is permitted to specify NULL 4153 * pointer for resulting string argument if "str_m" is zero (as per ISO C99). 4154 * 4155 * The return value is the number of characters which would be generated 4156 * for the given input, excluding the trailing NUL. If this value 4157 * is greater or equal to "str_m", not all characters from the result 4158 * have been stored in str, output bytes beyond the ("str_m"-1) -th character 4159 * are discarded. If "str_m" is greater than zero it is guaranteed 4160 * the resulting string will be NUL-terminated. 4161 */ 4162 4163 /* 4164 * When va_list is not supported we only define vim_snprintf(). 4165 * 4166 * vim_vsnprintf_typval() can be invoked with either "va_list" or a list of 4167 * "typval_T". When the latter is not used it must be NULL. 4168 */ 4169 4170 // When generating prototypes all of this is skipped, cproto doesn't 4171 // understand this. 4172 #ifndef PROTO 4173 4174 // Like vim_vsnprintf() but append to the string. 4175 int 4176 vim_snprintf_add(char *str, size_t str_m, const char *fmt, ...) 4177 { 4178 va_list ap; 4179 int str_l; 4180 size_t len = STRLEN(str); 4181 size_t space; 4182 4183 if (str_m <= len) 4184 space = 0; 4185 else 4186 space = str_m - len; 4187 va_start(ap, fmt); 4188 str_l = vim_vsnprintf(str + len, space, fmt, ap); 4189 va_end(ap); 4190 return str_l; 4191 } 4192 4193 int 4194 vim_snprintf(char *str, size_t str_m, const char *fmt, ...) 4195 { 4196 va_list ap; 4197 int str_l; 4198 4199 va_start(ap, fmt); 4200 str_l = vim_vsnprintf(str, str_m, fmt, ap); 4201 va_end(ap); 4202 return str_l; 4203 } 4204 4205 int 4206 vim_vsnprintf( 4207 char *str, 4208 size_t str_m, 4209 const char *fmt, 4210 va_list ap) 4211 { 4212 return vim_vsnprintf_typval(str, str_m, fmt, ap, NULL); 4213 } 4214 4215 int 4216 vim_vsnprintf_typval( 4217 char *str, 4218 size_t str_m, 4219 const char *fmt, 4220 va_list ap, 4221 typval_T *tvs) 4222 { 4223 size_t str_l = 0; 4224 const char *p = fmt; 4225 int arg_idx = 1; 4226 4227 if (p == NULL) 4228 p = ""; 4229 while (*p != NUL) 4230 { 4231 if (*p != '%') 4232 { 4233 char *q = strchr(p + 1, '%'); 4234 size_t n = (q == NULL) ? STRLEN(p) : (size_t)(q - p); 4235 4236 // Copy up to the next '%' or NUL without any changes. 4237 if (str_l < str_m) 4238 { 4239 size_t avail = str_m - str_l; 4240 4241 mch_memmove(str + str_l, p, n > avail ? avail : n); 4242 } 4243 p += n; 4244 str_l += n; 4245 } 4246 else 4247 { 4248 size_t min_field_width = 0, precision = 0; 4249 int zero_padding = 0, precision_specified = 0, justify_left = 0; 4250 int alternate_form = 0, force_sign = 0; 4251 4252 // If both the ' ' and '+' flags appear, the ' ' flag should be 4253 // ignored. 4254 int space_for_positive = 1; 4255 4256 // allowed values: \0, h, l, L 4257 char length_modifier = '\0'; 4258 4259 // temporary buffer for simple numeric->string conversion 4260 # if defined(FEAT_FLOAT) 4261 # define TMP_LEN 350 // On my system 1e308 is the biggest number possible. 4262 // That sounds reasonable to use as the maximum 4263 // printable. 4264 # else 4265 # define TMP_LEN 66 4266 # endif 4267 char tmp[TMP_LEN]; 4268 4269 // string address in case of string argument 4270 const char *str_arg = NULL; 4271 4272 // natural field width of arg without padding and sign 4273 size_t str_arg_l; 4274 4275 // unsigned char argument value - only defined for c conversion. 4276 // N.B. standard explicitly states the char argument for the c 4277 // conversion is unsigned 4278 unsigned char uchar_arg; 4279 4280 // number of zeros to be inserted for numeric conversions as 4281 // required by the precision or minimal field width 4282 size_t number_of_zeros_to_pad = 0; 4283 4284 // index into tmp where zero padding is to be inserted 4285 size_t zero_padding_insertion_ind = 0; 4286 4287 // current conversion specifier character 4288 char fmt_spec = '\0'; 4289 4290 // buffer for 's' and 'S' specs 4291 char_u *tofree = NULL; 4292 4293 4294 p++; // skip '%' 4295 4296 // parse flags 4297 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 4298 || *p == '#' || *p == '\'') 4299 { 4300 switch (*p) 4301 { 4302 case '0': zero_padding = 1; break; 4303 case '-': justify_left = 1; break; 4304 case '+': force_sign = 1; space_for_positive = 0; break; 4305 case ' ': force_sign = 1; 4306 // If both the ' ' and '+' flags appear, the ' ' 4307 // flag should be ignored 4308 break; 4309 case '#': alternate_form = 1; break; 4310 case '\'': break; 4311 } 4312 p++; 4313 } 4314 // If the '0' and '-' flags both appear, the '0' flag should be 4315 // ignored. 4316 4317 // parse field width 4318 if (*p == '*') 4319 { 4320 int j; 4321 4322 p++; 4323 j = 4324 # if defined(FEAT_EVAL) 4325 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4326 # endif 4327 va_arg(ap, int); 4328 if (j >= 0) 4329 min_field_width = j; 4330 else 4331 { 4332 min_field_width = -j; 4333 justify_left = 1; 4334 } 4335 } 4336 else if (VIM_ISDIGIT((int)(*p))) 4337 { 4338 // size_t could be wider than unsigned int; make sure we treat 4339 // argument like common implementations do 4340 unsigned int uj = *p++ - '0'; 4341 4342 while (VIM_ISDIGIT((int)(*p))) 4343 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4344 min_field_width = uj; 4345 } 4346 4347 // parse precision 4348 if (*p == '.') 4349 { 4350 p++; 4351 precision_specified = 1; 4352 if (*p == '*') 4353 { 4354 int j; 4355 4356 j = 4357 # if defined(FEAT_EVAL) 4358 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4359 # endif 4360 va_arg(ap, int); 4361 p++; 4362 if (j >= 0) 4363 precision = j; 4364 else 4365 { 4366 precision_specified = 0; 4367 precision = 0; 4368 } 4369 } 4370 else if (VIM_ISDIGIT((int)(*p))) 4371 { 4372 // size_t could be wider than unsigned int; make sure we 4373 // treat argument like common implementations do 4374 unsigned int uj = *p++ - '0'; 4375 4376 while (VIM_ISDIGIT((int)(*p))) 4377 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4378 precision = uj; 4379 } 4380 } 4381 4382 // parse 'h', 'l' and 'll' length modifiers 4383 if (*p == 'h' || *p == 'l') 4384 { 4385 length_modifier = *p; 4386 p++; 4387 if (length_modifier == 'l' && *p == 'l') 4388 { 4389 // double l = __int64 / varnumber_T 4390 length_modifier = 'L'; 4391 p++; 4392 } 4393 } 4394 fmt_spec = *p; 4395 4396 // common synonyms: 4397 switch (fmt_spec) 4398 { 4399 case 'i': fmt_spec = 'd'; break; 4400 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4401 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4402 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4403 default: break; 4404 } 4405 4406 # if defined(FEAT_EVAL) 4407 switch (fmt_spec) 4408 { 4409 case 'd': case 'u': case 'o': case 'x': case 'X': 4410 if (tvs != NULL && length_modifier == '\0') 4411 length_modifier = 'L'; 4412 } 4413 # endif 4414 4415 // get parameter value, do initial processing 4416 switch (fmt_spec) 4417 { 4418 // '%' and 'c' behave similar to 's' regarding flags and field 4419 // widths 4420 case '%': 4421 case 'c': 4422 case 's': 4423 case 'S': 4424 str_arg_l = 1; 4425 switch (fmt_spec) 4426 { 4427 case '%': 4428 str_arg = p; 4429 break; 4430 4431 case 'c': 4432 { 4433 int j; 4434 4435 j = 4436 # if defined(FEAT_EVAL) 4437 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4438 # endif 4439 va_arg(ap, int); 4440 // standard demands unsigned char 4441 uchar_arg = (unsigned char)j; 4442 str_arg = (char *)&uchar_arg; 4443 break; 4444 } 4445 4446 case 's': 4447 case 'S': 4448 str_arg = 4449 # if defined(FEAT_EVAL) 4450 tvs != NULL ? tv_str(tvs, &arg_idx, &tofree) : 4451 # endif 4452 va_arg(ap, char *); 4453 if (str_arg == NULL) 4454 { 4455 str_arg = "[NULL]"; 4456 str_arg_l = 6; 4457 } 4458 // make sure not to address string beyond the specified 4459 // precision !!! 4460 else if (!precision_specified) 4461 str_arg_l = strlen(str_arg); 4462 // truncate string if necessary as requested by precision 4463 else if (precision == 0) 4464 str_arg_l = 0; 4465 else 4466 { 4467 // Don't put the #if inside memchr(), it can be a 4468 // macro. 4469 // memchr on HP does not like n > 2^31 !!! 4470 char *q = memchr(str_arg, '\0', 4471 precision <= (size_t)0x7fffffffL ? precision 4472 : (size_t)0x7fffffffL); 4473 str_arg_l = (q == NULL) ? precision 4474 : (size_t)(q - str_arg); 4475 } 4476 if (fmt_spec == 'S') 4477 { 4478 if (min_field_width != 0) 4479 min_field_width += STRLEN(str_arg) 4480 - mb_string2cells((char_u *)str_arg, -1); 4481 if (precision) 4482 { 4483 char_u *p1; 4484 size_t i = 0; 4485 4486 for (p1 = (char_u *)str_arg; *p1; 4487 p1 += mb_ptr2len(p1)) 4488 { 4489 i += (size_t)mb_ptr2cells(p1); 4490 if (i > precision) 4491 break; 4492 } 4493 str_arg_l = precision = p1 - (char_u *)str_arg; 4494 } 4495 } 4496 break; 4497 4498 default: 4499 break; 4500 } 4501 break; 4502 4503 case 'd': case 'u': 4504 case 'b': case 'B': 4505 case 'o': 4506 case 'x': case 'X': 4507 case 'p': 4508 { 4509 // NOTE: the u, b, o, x, X and p conversion specifiers 4510 // imply the value is unsigned; d implies a signed 4511 // value 4512 4513 // 0 if numeric argument is zero (or if pointer is 4514 // NULL for 'p'), +1 if greater than zero (or nonzero 4515 // for unsigned arguments), -1 if negative (unsigned 4516 // argument is never negative) 4517 int arg_sign = 0; 4518 4519 // only set for length modifier h, or for no length 4520 // modifiers 4521 int int_arg = 0; 4522 unsigned int uint_arg = 0; 4523 4524 // only set for length modifier l 4525 long int long_arg = 0; 4526 unsigned long int ulong_arg = 0; 4527 4528 // only set for length modifier ll 4529 varnumber_T llong_arg = 0; 4530 uvarnumber_T ullong_arg = 0; 4531 4532 // only set for b conversion 4533 uvarnumber_T bin_arg = 0; 4534 4535 // pointer argument value -only defined for p 4536 // conversion 4537 void *ptr_arg = NULL; 4538 4539 if (fmt_spec == 'p') 4540 { 4541 length_modifier = '\0'; 4542 ptr_arg = 4543 # if defined(FEAT_EVAL) 4544 tvs != NULL ? (void *)tv_str(tvs, &arg_idx, 4545 NULL) : 4546 # endif 4547 va_arg(ap, void *); 4548 if (ptr_arg != NULL) 4549 arg_sign = 1; 4550 } 4551 else if (fmt_spec == 'b' || fmt_spec == 'B') 4552 { 4553 bin_arg = 4554 # if defined(FEAT_EVAL) 4555 tvs != NULL ? 4556 (uvarnumber_T)tv_nr(tvs, &arg_idx) : 4557 # endif 4558 va_arg(ap, uvarnumber_T); 4559 if (bin_arg != 0) 4560 arg_sign = 1; 4561 } 4562 else if (fmt_spec == 'd') 4563 { 4564 // signed 4565 switch (length_modifier) 4566 { 4567 case '\0': 4568 case 'h': 4569 // char and short arguments are passed as int. 4570 int_arg = 4571 # if defined(FEAT_EVAL) 4572 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4573 # endif 4574 va_arg(ap, int); 4575 if (int_arg > 0) 4576 arg_sign = 1; 4577 else if (int_arg < 0) 4578 arg_sign = -1; 4579 break; 4580 case 'l': 4581 long_arg = 4582 # if defined(FEAT_EVAL) 4583 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4584 # endif 4585 va_arg(ap, long int); 4586 if (long_arg > 0) 4587 arg_sign = 1; 4588 else if (long_arg < 0) 4589 arg_sign = -1; 4590 break; 4591 case 'L': 4592 llong_arg = 4593 # if defined(FEAT_EVAL) 4594 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4595 # endif 4596 va_arg(ap, varnumber_T); 4597 if (llong_arg > 0) 4598 arg_sign = 1; 4599 else if (llong_arg < 0) 4600 arg_sign = -1; 4601 break; 4602 } 4603 } 4604 else 4605 { 4606 // unsigned 4607 switch (length_modifier) 4608 { 4609 case '\0': 4610 case 'h': 4611 uint_arg = 4612 # if defined(FEAT_EVAL) 4613 tvs != NULL ? (unsigned) 4614 tv_nr(tvs, &arg_idx) : 4615 # endif 4616 va_arg(ap, unsigned int); 4617 if (uint_arg != 0) 4618 arg_sign = 1; 4619 break; 4620 case 'l': 4621 ulong_arg = 4622 # if defined(FEAT_EVAL) 4623 tvs != NULL ? (unsigned long) 4624 tv_nr(tvs, &arg_idx) : 4625 # endif 4626 va_arg(ap, unsigned long int); 4627 if (ulong_arg != 0) 4628 arg_sign = 1; 4629 break; 4630 case 'L': 4631 ullong_arg = 4632 # if defined(FEAT_EVAL) 4633 tvs != NULL ? (uvarnumber_T) 4634 tv_nr(tvs, &arg_idx) : 4635 # endif 4636 va_arg(ap, uvarnumber_T); 4637 if (ullong_arg != 0) 4638 arg_sign = 1; 4639 break; 4640 } 4641 } 4642 4643 str_arg = tmp; 4644 str_arg_l = 0; 4645 4646 // NOTE: 4647 // For d, i, u, o, x, and X conversions, if precision is 4648 // specified, the '0' flag should be ignored. This is so 4649 // with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4650 // FreeBSD, NetBSD; but not with Perl. 4651 if (precision_specified) 4652 zero_padding = 0; 4653 if (fmt_spec == 'd') 4654 { 4655 if (force_sign && arg_sign >= 0) 4656 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4657 // leave negative numbers for sprintf to handle, to 4658 // avoid handling tricky cases like (short int)-32768 4659 } 4660 else if (alternate_form) 4661 { 4662 if (arg_sign != 0 4663 && (fmt_spec == 'b' || fmt_spec == 'B' 4664 || fmt_spec == 'x' || fmt_spec == 'X') ) 4665 { 4666 tmp[str_arg_l++] = '0'; 4667 tmp[str_arg_l++] = fmt_spec; 4668 } 4669 // alternate form should have no effect for p 4670 // conversion, but ... 4671 } 4672 4673 zero_padding_insertion_ind = str_arg_l; 4674 if (!precision_specified) 4675 precision = 1; // default precision is 1 4676 if (precision == 0 && arg_sign == 0) 4677 { 4678 // When zero value is formatted with an explicit 4679 // precision 0, the resulting formatted string is 4680 // empty (d, i, u, b, B, o, x, X, p). 4681 } 4682 else 4683 { 4684 char f[6]; 4685 int f_l = 0; 4686 4687 // construct a simple format string for sprintf 4688 f[f_l++] = '%'; 4689 if (!length_modifier) 4690 ; 4691 else if (length_modifier == 'L') 4692 { 4693 # ifdef MSWIN 4694 f[f_l++] = 'I'; 4695 f[f_l++] = '6'; 4696 f[f_l++] = '4'; 4697 # else 4698 f[f_l++] = 'l'; 4699 f[f_l++] = 'l'; 4700 # endif 4701 } 4702 else 4703 f[f_l++] = length_modifier; 4704 f[f_l++] = fmt_spec; 4705 f[f_l++] = '\0'; 4706 4707 if (fmt_spec == 'p') 4708 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4709 else if (fmt_spec == 'b' || fmt_spec == 'B') 4710 { 4711 char b[8 * sizeof(uvarnumber_T)]; 4712 size_t b_l = 0; 4713 uvarnumber_T bn = bin_arg; 4714 4715 do 4716 { 4717 b[sizeof(b) - ++b_l] = '0' + (bn & 0x1); 4718 bn >>= 1; 4719 } 4720 while (bn != 0); 4721 4722 memcpy(tmp + str_arg_l, b + sizeof(b) - b_l, b_l); 4723 str_arg_l += b_l; 4724 } 4725 else if (fmt_spec == 'd') 4726 { 4727 // signed 4728 switch (length_modifier) 4729 { 4730 case '\0': str_arg_l += sprintf( 4731 tmp + str_arg_l, f, 4732 int_arg); 4733 break; 4734 case 'h': str_arg_l += sprintf( 4735 tmp + str_arg_l, f, 4736 (short)int_arg); 4737 break; 4738 case 'l': str_arg_l += sprintf( 4739 tmp + str_arg_l, f, long_arg); 4740 break; 4741 case 'L': str_arg_l += sprintf( 4742 tmp + str_arg_l, f, llong_arg); 4743 break; 4744 } 4745 } 4746 else 4747 { 4748 // unsigned 4749 switch (length_modifier) 4750 { 4751 case '\0': str_arg_l += sprintf( 4752 tmp + str_arg_l, f, 4753 uint_arg); 4754 break; 4755 case 'h': str_arg_l += sprintf( 4756 tmp + str_arg_l, f, 4757 (unsigned short)uint_arg); 4758 break; 4759 case 'l': str_arg_l += sprintf( 4760 tmp + str_arg_l, f, ulong_arg); 4761 break; 4762 case 'L': str_arg_l += sprintf( 4763 tmp + str_arg_l, f, ullong_arg); 4764 break; 4765 } 4766 } 4767 4768 // include the optional minus sign and possible 4769 // "0x" in the region before the zero padding 4770 // insertion point 4771 if (zero_padding_insertion_ind < str_arg_l 4772 && tmp[zero_padding_insertion_ind] == '-') 4773 zero_padding_insertion_ind++; 4774 if (zero_padding_insertion_ind + 1 < str_arg_l 4775 && tmp[zero_padding_insertion_ind] == '0' 4776 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4777 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4778 zero_padding_insertion_ind += 2; 4779 } 4780 4781 { 4782 size_t num_of_digits = str_arg_l 4783 - zero_padding_insertion_ind; 4784 4785 if (alternate_form && fmt_spec == 'o' 4786 // unless zero is already the first 4787 // character 4788 && !(zero_padding_insertion_ind < str_arg_l 4789 && tmp[zero_padding_insertion_ind] == '0')) 4790 { 4791 // assure leading zero for alternate-form 4792 // octal numbers 4793 if (!precision_specified 4794 || precision < num_of_digits + 1) 4795 { 4796 // precision is increased to force the 4797 // first character to be zero, except if a 4798 // zero value is formatted with an 4799 // explicit precision of zero 4800 precision = num_of_digits + 1; 4801 } 4802 } 4803 // zero padding to specified precision? 4804 if (num_of_digits < precision) 4805 number_of_zeros_to_pad = precision - num_of_digits; 4806 } 4807 // zero padding to specified minimal field width? 4808 if (!justify_left && zero_padding) 4809 { 4810 int n = (int)(min_field_width - (str_arg_l 4811 + number_of_zeros_to_pad)); 4812 if (n > 0) 4813 number_of_zeros_to_pad += n; 4814 } 4815 break; 4816 } 4817 4818 # ifdef FEAT_FLOAT 4819 case 'f': 4820 case 'F': 4821 case 'e': 4822 case 'E': 4823 case 'g': 4824 case 'G': 4825 { 4826 // Floating point. 4827 double f; 4828 double abs_f; 4829 char format[40]; 4830 int l; 4831 int remove_trailing_zeroes = FALSE; 4832 4833 f = 4834 # if defined(FEAT_EVAL) 4835 tvs != NULL ? tv_float(tvs, &arg_idx) : 4836 # endif 4837 va_arg(ap, double); 4838 abs_f = f < 0 ? -f : f; 4839 4840 if (fmt_spec == 'g' || fmt_spec == 'G') 4841 { 4842 // Would be nice to use %g directly, but it prints 4843 // "1.0" as "1", we don't want that. 4844 if ((abs_f >= 0.001 && abs_f < 10000000.0) 4845 || abs_f == 0.0) 4846 fmt_spec = ASCII_ISUPPER(fmt_spec) ? 'F' : 'f'; 4847 else 4848 fmt_spec = fmt_spec == 'g' ? 'e' : 'E'; 4849 remove_trailing_zeroes = TRUE; 4850 } 4851 4852 if ((fmt_spec == 'f' || fmt_spec == 'F') && 4853 # ifdef VAX 4854 abs_f > 1.0e38 4855 # else 4856 abs_f > 1.0e307 4857 # endif 4858 ) 4859 { 4860 // Avoid a buffer overflow 4861 STRCPY(tmp, infinity_str(f > 0.0, fmt_spec, 4862 force_sign, space_for_positive)); 4863 str_arg_l = STRLEN(tmp); 4864 zero_padding = 0; 4865 } 4866 else 4867 { 4868 if (isnan(f)) 4869 { 4870 // Not a number: nan or NAN 4871 STRCPY(tmp, ASCII_ISUPPER(fmt_spec) ? "NAN" 4872 : "nan"); 4873 str_arg_l = 3; 4874 zero_padding = 0; 4875 } 4876 else if (isinf(f)) 4877 { 4878 STRCPY(tmp, infinity_str(f > 0.0, fmt_spec, 4879 force_sign, space_for_positive)); 4880 str_arg_l = STRLEN(tmp); 4881 zero_padding = 0; 4882 } 4883 else 4884 { 4885 // Regular float number 4886 format[0] = '%'; 4887 l = 1; 4888 if (force_sign) 4889 format[l++] = space_for_positive ? ' ' : '+'; 4890 if (precision_specified) 4891 { 4892 size_t max_prec = TMP_LEN - 10; 4893 4894 // Make sure we don't get more digits than we 4895 // have room for. 4896 if ((fmt_spec == 'f' || fmt_spec == 'F') 4897 && abs_f > 1.0) 4898 max_prec -= (size_t)log10(abs_f); 4899 if (precision > max_prec) 4900 precision = max_prec; 4901 l += sprintf(format + l, ".%d", (int)precision); 4902 } 4903 format[l] = fmt_spec == 'F' ? 'f' : fmt_spec; 4904 format[l + 1] = NUL; 4905 4906 str_arg_l = sprintf(tmp, format, f); 4907 } 4908 4909 if (remove_trailing_zeroes) 4910 { 4911 int i; 4912 char *tp; 4913 4914 // Using %g or %G: remove superfluous zeroes. 4915 if (fmt_spec == 'f' || fmt_spec == 'F') 4916 tp = tmp + str_arg_l - 1; 4917 else 4918 { 4919 tp = (char *)vim_strchr((char_u *)tmp, 4920 fmt_spec == 'e' ? 'e' : 'E'); 4921 if (tp != NULL) 4922 { 4923 // Remove superfluous '+' and leading 4924 // zeroes from the exponent. 4925 if (tp[1] == '+') 4926 { 4927 // Change "1.0e+07" to "1.0e07" 4928 STRMOVE(tp + 1, tp + 2); 4929 --str_arg_l; 4930 } 4931 i = (tp[1] == '-') ? 2 : 1; 4932 while (tp[i] == '0') 4933 { 4934 // Change "1.0e07" to "1.0e7" 4935 STRMOVE(tp + i, tp + i + 1); 4936 --str_arg_l; 4937 } 4938 --tp; 4939 } 4940 } 4941 4942 if (tp != NULL && !precision_specified) 4943 // Remove trailing zeroes, but keep the one 4944 // just after a dot. 4945 while (tp > tmp + 2 && *tp == '0' 4946 && tp[-1] != '.') 4947 { 4948 STRMOVE(tp, tp + 1); 4949 --tp; 4950 --str_arg_l; 4951 } 4952 } 4953 else 4954 { 4955 char *tp; 4956 4957 // Be consistent: some printf("%e") use 1.0e+12 4958 // and some 1.0e+012. Remove one zero in the last 4959 // case. 4960 tp = (char *)vim_strchr((char_u *)tmp, 4961 fmt_spec == 'e' ? 'e' : 'E'); 4962 if (tp != NULL && (tp[1] == '+' || tp[1] == '-') 4963 && tp[2] == '0' 4964 && vim_isdigit(tp[3]) 4965 && vim_isdigit(tp[4])) 4966 { 4967 STRMOVE(tp + 2, tp + 3); 4968 --str_arg_l; 4969 } 4970 } 4971 } 4972 if (zero_padding && min_field_width > str_arg_l 4973 && (tmp[0] == '-' || force_sign)) 4974 { 4975 // padding 0's should be inserted after the sign 4976 number_of_zeros_to_pad = min_field_width - str_arg_l; 4977 zero_padding_insertion_ind = 1; 4978 } 4979 str_arg = tmp; 4980 break; 4981 } 4982 # endif 4983 4984 default: 4985 // unrecognized conversion specifier, keep format string 4986 // as-is 4987 zero_padding = 0; // turn zero padding off for non-numeric 4988 // conversion 4989 justify_left = 1; 4990 min_field_width = 0; // reset flags 4991 4992 // discard the unrecognized conversion, just keep * 4993 // the unrecognized conversion character 4994 str_arg = p; 4995 str_arg_l = 0; 4996 if (*p != NUL) 4997 str_arg_l++; // include invalid conversion specifier 4998 // unchanged if not at end-of-string 4999 break; 5000 } 5001 5002 if (*p != NUL) 5003 p++; // step over the just processed conversion specifier 5004 5005 // insert padding to the left as requested by min_field_width; 5006 // this does not include the zero padding in case of numerical 5007 // conversions 5008 if (!justify_left) 5009 { 5010 // left padding with blank or zero 5011 int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad)); 5012 5013 if (pn > 0) 5014 { 5015 if (str_l < str_m) 5016 { 5017 size_t avail = str_m - str_l; 5018 5019 vim_memset(str + str_l, zero_padding ? '0' : ' ', 5020 (size_t)pn > avail ? avail 5021 : (size_t)pn); 5022 } 5023 str_l += pn; 5024 } 5025 } 5026 5027 // zero padding as requested by the precision or by the minimal 5028 // field width for numeric conversions required? 5029 if (number_of_zeros_to_pad == 0) 5030 { 5031 // will not copy first part of numeric right now, * 5032 // force it to be copied later in its entirety 5033 zero_padding_insertion_ind = 0; 5034 } 5035 else 5036 { 5037 // insert first part of numerics (sign or '0x') before zero 5038 // padding 5039 int zn = (int)zero_padding_insertion_ind; 5040 5041 if (zn > 0) 5042 { 5043 if (str_l < str_m) 5044 { 5045 size_t avail = str_m - str_l; 5046 5047 mch_memmove(str + str_l, str_arg, 5048 (size_t)zn > avail ? avail 5049 : (size_t)zn); 5050 } 5051 str_l += zn; 5052 } 5053 5054 // insert zero padding as requested by the precision or min 5055 // field width 5056 zn = (int)number_of_zeros_to_pad; 5057 if (zn > 0) 5058 { 5059 if (str_l < str_m) 5060 { 5061 size_t avail = str_m - str_l; 5062 5063 vim_memset(str + str_l, '0', 5064 (size_t)zn > avail ? avail 5065 : (size_t)zn); 5066 } 5067 str_l += zn; 5068 } 5069 } 5070 5071 // insert formatted string 5072 // (or as-is conversion specifier for unknown conversions) 5073 { 5074 int sn = (int)(str_arg_l - zero_padding_insertion_ind); 5075 5076 if (sn > 0) 5077 { 5078 if (str_l < str_m) 5079 { 5080 size_t avail = str_m - str_l; 5081 5082 mch_memmove(str + str_l, 5083 str_arg + zero_padding_insertion_ind, 5084 (size_t)sn > avail ? avail : (size_t)sn); 5085 } 5086 str_l += sn; 5087 } 5088 } 5089 5090 // insert right padding 5091 if (justify_left) 5092 { 5093 // right blank padding to the field width 5094 int pn = (int)(min_field_width 5095 - (str_arg_l + number_of_zeros_to_pad)); 5096 5097 if (pn > 0) 5098 { 5099 if (str_l < str_m) 5100 { 5101 size_t avail = str_m - str_l; 5102 5103 vim_memset(str + str_l, ' ', 5104 (size_t)pn > avail ? avail 5105 : (size_t)pn); 5106 } 5107 str_l += pn; 5108 } 5109 } 5110 vim_free(tofree); 5111 } 5112 } 5113 5114 if (str_m > 0) 5115 { 5116 // make sure the string is nul-terminated even at the expense of 5117 // overwriting the last character (shouldn't happen, but just in case) 5118 // 5119 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 5120 } 5121 5122 if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 5123 emsg(_("E767: Too many arguments to printf()")); 5124 5125 // Return the number of characters formatted (excluding trailing nul 5126 // character), that is, the number of characters that would have been 5127 // written to the buffer if it were large enough. 5128 return (int)str_l; 5129 } 5130 5131 #endif // PROTO 5132