1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * message.c: functions for displaying messages on the command line 12 */ 13 14 #define MESSAGE_FILE /* don't include prototype for smsg() */ 15 16 #include "vim.h" 17 18 static int other_sourcing_name(void); 19 static char_u *get_emsg_source(void); 20 static char_u *get_emsg_lnum(void); 21 static void add_msg_hist(char_u *s, int len, int attr); 22 static void hit_return_msg(void); 23 static void msg_home_replace_attr(char_u *fname, int attr); 24 #ifdef FEAT_MBYTE 25 static char_u *screen_puts_mbyte(char_u *s, int l, int attr); 26 #endif 27 static void msg_puts_attr_len(char_u *str, int maxlen, int attr); 28 static void msg_puts_display(char_u *str, int maxlen, int attr, int recurse); 29 static void msg_scroll_up(void); 30 static void inc_msg_scrolled(void); 31 static void store_sb_text(char_u **sb_str, char_u *s, int attr, int *sb_col, int finish); 32 static void t_puts(int *t_col, char_u *t_s, char_u *s, int attr); 33 static void msg_puts_printf(char_u *str, int maxlen); 34 static int do_more_prompt(int typed_char); 35 static void msg_screen_putchar(int c, int attr); 36 static int msg_check_screen(void); 37 static void redir_write(char_u *s, int maxlen); 38 #ifdef FEAT_CON_DIALOG 39 static char_u *msg_show_console_dialog(char_u *message, char_u *buttons, int dfltbutton); 40 static int confirm_msg_used = FALSE; /* displaying confirm_msg */ 41 static char_u *confirm_msg = NULL; /* ":confirm" message */ 42 static char_u *confirm_msg_tail; /* tail of confirm_msg */ 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_u *s) 102 { 103 return msg_attr_keep(s, 0, FALSE); 104 } 105 106 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 107 || defined(FEAT_GUI_GTK) || defined(PROTO) 108 /* 109 * Like msg() but keep it silent when 'verbosefile' is set. 110 */ 111 int 112 verb_msg(char_u *s) 113 { 114 int n; 115 116 verbose_enter(); 117 n = msg_attr_keep(s, 0, FALSE); 118 verbose_leave(); 119 120 return n; 121 } 122 #endif 123 124 int 125 msg_attr(char_u *s, int attr) 126 { 127 return msg_attr_keep(s, attr, FALSE); 128 } 129 130 int 131 msg_attr_keep( 132 char_u *s, 133 int attr, 134 int keep) /* TRUE: set keep_msg if it doesn't scroll */ 135 { 136 static int entered = 0; 137 int retval; 138 char_u *buf = NULL; 139 140 #ifdef FEAT_EVAL 141 if (attr == 0) 142 set_vim_var_string(VV_STATUSMSG, s, -1); 143 #endif 144 145 /* 146 * It is possible that displaying a messages causes a problem (e.g., 147 * when redrawing the window), which causes another message, etc.. To 148 * break this loop, limit the recursiveness to 3 levels. 149 */ 150 if (entered >= 3) 151 return TRUE; 152 ++entered; 153 154 /* Add message to history (unless it's a repeated kept message or a 155 * truncated message) */ 156 if (s != keep_msg 157 || (*s != '<' 158 && last_msg_hist != NULL 159 && last_msg_hist->msg != NULL 160 && STRCMP(s, last_msg_hist->msg))) 161 add_msg_hist(s, -1, attr); 162 163 /* When displaying keep_msg, don't let msg_start() free it, caller must do 164 * that. */ 165 if (s == keep_msg) 166 keep_msg = NULL; 167 168 /* Truncate the message if needed. */ 169 msg_start(); 170 buf = msg_strtrunc(s, FALSE); 171 if (buf != NULL) 172 s = buf; 173 174 msg_outtrans_attr(s, attr); 175 msg_clr_eos(); 176 retval = msg_end(); 177 178 if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1) 179 * Columns + sc_col) 180 set_keep_msg(s, 0); 181 182 vim_free(buf); 183 --entered; 184 return retval; 185 } 186 187 /* 188 * Truncate a string such that it can be printed without causing a scroll. 189 * Returns an allocated string or NULL when no truncating is done. 190 */ 191 char_u * 192 msg_strtrunc( 193 char_u *s, 194 int force) /* always truncate */ 195 { 196 char_u *buf = NULL; 197 int len; 198 int room; 199 200 /* May truncate message to avoid a hit-return prompt */ 201 if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 202 && !exmode_active && msg_silent == 0) || force) 203 { 204 len = vim_strsize(s); 205 if (msg_scrolled != 0) 206 /* Use all the columns. */ 207 room = (int)(Rows - msg_row) * Columns - 1; 208 else 209 /* Use up to 'showcmd' column. */ 210 room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1; 211 if (len > room && room > 0) 212 { 213 #ifdef FEAT_MBYTE 214 if (enc_utf8) 215 /* may have up to 18 bytes per cell (6 per char, up to two 216 * composing chars) */ 217 len = (room + 2) * 18; 218 else if (enc_dbcs == DBCS_JPNU) 219 /* may have up to 2 bytes per cell for euc-jp */ 220 len = (room + 2) * 2; 221 else 222 #endif 223 len = room + 2; 224 buf = alloc(len); 225 if (buf != NULL) 226 trunc_string(s, buf, room, len); 227 } 228 } 229 return buf; 230 } 231 232 /* 233 * Truncate a string "s" to "buf" with cell width "room". 234 * "s" and "buf" may be equal. 235 */ 236 void 237 trunc_string( 238 char_u *s, 239 char_u *buf, 240 int room_in, 241 int buflen) 242 { 243 size_t room = room_in - 3; /* "..." takes 3 chars */ 244 size_t half; 245 size_t len = 0; 246 int e; 247 int i; 248 int n; 249 250 if (room_in < 3) 251 room = 0; 252 half = room / 2; 253 254 /* First part: Start of the string. */ 255 for (e = 0; len < half && e < buflen; ++e) 256 { 257 if (s[e] == NUL) 258 { 259 /* text fits without truncating! */ 260 buf[e] = NUL; 261 return; 262 } 263 n = ptr2cells(s + e); 264 if (len + n > half) 265 break; 266 len += n; 267 buf[e] = s[e]; 268 #ifdef FEAT_MBYTE 269 if (has_mbyte) 270 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 271 { 272 if (++e == buflen) 273 break; 274 buf[e] = s[e]; 275 } 276 #endif 277 } 278 279 /* Last part: End of the string. */ 280 i = e; 281 #ifdef FEAT_MBYTE 282 if (enc_dbcs != 0) 283 { 284 /* For DBCS going backwards in a string is slow, but 285 * computing the cell width isn't too slow: go forward 286 * until the rest fits. */ 287 n = vim_strsize(s + i); 288 while (len + n > room) 289 { 290 n -= ptr2cells(s + i); 291 i += (*mb_ptr2len)(s + i); 292 } 293 } 294 else if (enc_utf8) 295 { 296 /* For UTF-8 we can go backwards easily. */ 297 half = i = (int)STRLEN(s); 298 for (;;) 299 { 300 do 301 half = half - (*mb_head_off)(s, s + half - 1) - 1; 302 while (half > 0 && utf_iscomposing(utf_ptr2char(s + half))); 303 n = ptr2cells(s + half); 304 if (len + n > room || half == 0) 305 break; 306 len += n; 307 i = (int)half; 308 } 309 } 310 else 311 #endif 312 { 313 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 314 len += n; 315 } 316 317 318 if (i <= e + 3) 319 { 320 /* text fits without truncating */ 321 if (s != buf) 322 { 323 len = STRLEN(s); 324 if (len >= (size_t)buflen) 325 len = buflen - 1; 326 len = len - e + 1; 327 if (len < 1) 328 buf[e - 1] = NUL; 329 else 330 mch_memmove(buf + e, s + e, len); 331 } 332 } 333 else if (e + 3 < buflen) 334 { 335 /* set the middle and copy the last part */ 336 mch_memmove(buf + e, "...", (size_t)3); 337 len = STRLEN(s + i) + 1; 338 if (len >= (size_t)buflen - e - 3) 339 len = buflen - e - 3 - 1; 340 mch_memmove(buf + e + 3, s + i, len); 341 buf[e + 3 + len - 1] = NUL; 342 } 343 else 344 { 345 /* can't fit in the "...", just truncate it */ 346 buf[e - 1] = NUL; 347 } 348 } 349 350 /* 351 * Automatic prototype generation does not understand this function. 352 * Note: Caller of smgs() and smsg_attr() must check the resulting string is 353 * shorter than IOSIZE!!! 354 */ 355 #ifndef PROTO 356 357 int vim_snprintf(char *str, size_t str_m, char *fmt, ...); 358 359 int 360 # ifdef __BORLANDC__ 361 _RTLENTRYF 362 # endif 363 smsg(char_u *s, ...) 364 { 365 va_list arglist; 366 367 va_start(arglist, s); 368 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 369 va_end(arglist); 370 return msg(IObuff); 371 } 372 373 int 374 # ifdef __BORLANDC__ 375 _RTLENTRYF 376 # endif 377 smsg_attr(int attr, char_u *s, ...) 378 { 379 va_list arglist; 380 381 va_start(arglist, s); 382 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 383 va_end(arglist); 384 return msg_attr(IObuff, attr); 385 } 386 387 #endif 388 389 /* 390 * Remember the last sourcing name/lnum used in an error message, so that it 391 * isn't printed each time when it didn't change. 392 */ 393 static int last_sourcing_lnum = 0; 394 static char_u *last_sourcing_name = NULL; 395 396 /* 397 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 398 * for the next error message; 399 */ 400 void 401 reset_last_sourcing(void) 402 { 403 vim_free(last_sourcing_name); 404 last_sourcing_name = NULL; 405 last_sourcing_lnum = 0; 406 } 407 408 /* 409 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 410 */ 411 static int 412 other_sourcing_name(void) 413 { 414 if (sourcing_name != NULL) 415 { 416 if (last_sourcing_name != NULL) 417 return STRCMP(sourcing_name, last_sourcing_name) != 0; 418 return TRUE; 419 } 420 return FALSE; 421 } 422 423 /* 424 * Get the message about the source, as used for an error message. 425 * Returns an allocated string with room for one more character. 426 * Returns NULL when no message is to be given. 427 */ 428 static char_u * 429 get_emsg_source(void) 430 { 431 char_u *Buf, *p; 432 433 if (sourcing_name != NULL && other_sourcing_name()) 434 { 435 p = (char_u *)_("Error detected while processing %s:"); 436 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 437 if (Buf != NULL) 438 sprintf((char *)Buf, (char *)p, sourcing_name); 439 return Buf; 440 } 441 return NULL; 442 } 443 444 /* 445 * Get the message about the source lnum, as used for an error message. 446 * Returns an allocated string with room for one more character. 447 * Returns NULL when no message is to be given. 448 */ 449 static char_u * 450 get_emsg_lnum(void) 451 { 452 char_u *Buf, *p; 453 454 /* lnum is 0 when executing a command from the command line 455 * argument, we don't want a line number then */ 456 if (sourcing_name != NULL 457 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 458 && sourcing_lnum != 0) 459 { 460 p = (char_u *)_("line %4ld:"); 461 Buf = alloc((unsigned)(STRLEN(p) + 20)); 462 if (Buf != NULL) 463 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 464 return Buf; 465 } 466 return NULL; 467 } 468 469 /* 470 * Display name and line number for the source of an error. 471 * Remember the file name and line number, so that for the next error the info 472 * is only displayed if it changed. 473 */ 474 void 475 msg_source(int attr) 476 { 477 char_u *p; 478 479 ++no_wait_return; 480 p = get_emsg_source(); 481 if (p != NULL) 482 { 483 msg_attr(p, attr); 484 vim_free(p); 485 } 486 p = get_emsg_lnum(); 487 if (p != NULL) 488 { 489 msg_attr(p, hl_attr(HLF_N)); 490 vim_free(p); 491 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 492 } 493 494 /* remember the last sourcing name printed, also when it's empty */ 495 if (sourcing_name == NULL || other_sourcing_name()) 496 { 497 vim_free(last_sourcing_name); 498 if (sourcing_name == NULL) 499 last_sourcing_name = NULL; 500 else 501 last_sourcing_name = vim_strsave(sourcing_name); 502 } 503 --no_wait_return; 504 } 505 506 /* 507 * Return TRUE if not giving error messages right now: 508 * If "emsg_off" is set: no error messages at the moment. 509 * If "msg" is in 'debug': do error message but without side effects. 510 * If "emsg_skip" is set: never do error messages. 511 */ 512 int 513 emsg_not_now(void) 514 { 515 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL 516 && vim_strchr(p_debug, 't') == NULL) 517 #ifdef FEAT_EVAL 518 || emsg_skip > 0 519 #endif 520 ) 521 return TRUE; 522 return FALSE; 523 } 524 525 #if !defined(HAVE_STRERROR) || defined(PROTO) 526 /* 527 * Replacement for perror() that behaves more or less like emsg() was called. 528 * v:errmsg will be set and called_emsg will be set. 529 */ 530 void 531 do_perror(char *msg) 532 { 533 perror(msg); 534 ++emsg_silent; 535 emsg((char_u *)msg); 536 --emsg_silent; 537 } 538 #endif 539 540 /* 541 * emsg() - display an error message 542 * 543 * Rings the bell, if appropriate, and calls message() to do the real work 544 * When terminal not initialized (yet) mch_errmsg(..) is used. 545 * 546 * return TRUE if wait_return not called 547 */ 548 int 549 emsg(char_u *s) 550 { 551 int attr; 552 char_u *p; 553 #ifdef FEAT_EVAL 554 int ignore = FALSE; 555 int severe; 556 #endif 557 558 /* Skip this if not giving error messages at the moment. */ 559 if (emsg_not_now()) 560 return TRUE; 561 562 called_emsg = TRUE; 563 if (emsg_silent == 0) 564 ex_exitval = 1; 565 566 /* 567 * If "emsg_severe" is TRUE: When an error exception is to be thrown, 568 * prefer this message over previous messages for the same command. 569 */ 570 #ifdef FEAT_EVAL 571 severe = emsg_severe; 572 emsg_severe = FALSE; 573 #endif 574 575 if (!emsg_off || vim_strchr(p_debug, 't') != NULL) 576 { 577 #ifdef FEAT_EVAL 578 /* 579 * Cause a throw of an error exception if appropriate. Don't display 580 * the error message in this case. (If no matching catch clause will 581 * be found, the message will be displayed later on.) "ignore" is set 582 * when the message should be ignored completely (used for the 583 * interrupt message). 584 */ 585 if (cause_errthrow(s, severe, &ignore) == TRUE) 586 { 587 if (!ignore) 588 did_emsg = TRUE; 589 return TRUE; 590 } 591 592 /* set "v:errmsg", also when using ":silent! cmd" */ 593 set_vim_var_string(VV_ERRMSG, s, -1); 594 #endif 595 596 /* 597 * When using ":silent! cmd" ignore error messages. 598 * But do write it to the redirection file. 599 */ 600 if (emsg_silent != 0) 601 { 602 if (emsg_noredir == 0) 603 { 604 msg_start(); 605 p = get_emsg_source(); 606 if (p != NULL) 607 { 608 STRCAT(p, "\n"); 609 redir_write(p, -1); 610 vim_free(p); 611 } 612 p = get_emsg_lnum(); 613 if (p != NULL) 614 { 615 STRCAT(p, "\n"); 616 redir_write(p, -1); 617 vim_free(p); 618 } 619 redir_write(s, -1); 620 } 621 return TRUE; 622 } 623 624 /* Reset msg_silent, an error causes messages to be switched back on. */ 625 msg_silent = 0; 626 cmd_silent = FALSE; 627 628 if (global_busy) /* break :global command */ 629 ++global_busy; 630 631 if (p_eb) 632 beep_flush(); /* also includes flush_buffers() */ 633 else 634 flush_buffers(FALSE); /* flush internal buffers */ 635 did_emsg = TRUE; /* flag for DoOneCmd() */ 636 } 637 638 emsg_on_display = TRUE; /* remember there is an error message */ 639 ++msg_scroll; /* don't overwrite a previous message */ 640 attr = hl_attr(HLF_E); /* set highlight mode for error messages */ 641 if (msg_scrolled != 0) 642 need_wait_return = TRUE; /* needed in case emsg() is called after 643 * wait_return has reset need_wait_return 644 * and a redraw is expected because 645 * msg_scrolled is non-zero */ 646 647 /* 648 * Display name and line number for the source of the error. 649 */ 650 msg_source(attr); 651 652 /* 653 * Display the error message itself. 654 */ 655 msg_nowait = FALSE; /* wait for this msg */ 656 return msg_attr(s, attr); 657 } 658 659 /* 660 * Print an error message with one "%s" and one string argument. 661 */ 662 int 663 emsg2(char_u *s, char_u *a1) 664 { 665 return emsg3(s, a1, NULL); 666 } 667 668 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 669 670 void 671 emsg_invreg(int name) 672 { 673 EMSG2(_("E354: Invalid register name: '%s'"), transchar(name)); 674 } 675 676 /* 677 * Like msg(), but truncate to a single line if p_shm contains 't', or when 678 * "force" is TRUE. This truncates in another way as for normal messages. 679 * Careful: The string may be changed by msg_may_trunc()! 680 * Returns a pointer to the printed message, if wait_return() not called. 681 */ 682 char_u * 683 msg_trunc_attr(char_u *s, int force, int attr) 684 { 685 int n; 686 687 /* Add message to history before truncating */ 688 add_msg_hist(s, -1, attr); 689 690 s = msg_may_trunc(force, s); 691 692 msg_hist_off = TRUE; 693 n = msg_attr(s, attr); 694 msg_hist_off = FALSE; 695 696 if (n) 697 return s; 698 return NULL; 699 } 700 701 /* 702 * Check if message "s" should be truncated at the start (for filenames). 703 * Return a pointer to where the truncated message starts. 704 * Note: May change the message by replacing a character with '<'. 705 */ 706 char_u * 707 msg_may_trunc(int force, char_u *s) 708 { 709 int n; 710 int room; 711 712 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 713 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 714 && (n = (int)STRLEN(s) - room) > 0) 715 { 716 #ifdef FEAT_MBYTE 717 if (has_mbyte) 718 { 719 int size = vim_strsize(s); 720 721 /* There may be room anyway when there are multibyte chars. */ 722 if (size <= room) 723 return s; 724 725 for (n = 0; size >= room; ) 726 { 727 size -= (*mb_ptr2cells)(s + n); 728 n += (*mb_ptr2len)(s + n); 729 } 730 --n; 731 } 732 #endif 733 s += n; 734 *s = '<'; 735 } 736 return s; 737 } 738 739 static void 740 add_msg_hist( 741 char_u *s, 742 int len, /* -1 for undetermined length */ 743 int attr) 744 { 745 struct msg_hist *p; 746 747 if (msg_hist_off || msg_silent != 0) 748 return; 749 750 /* Don't let the message history get too big */ 751 while (msg_hist_len > MAX_MSG_HIST_LEN) 752 (void)delete_first_msg(); 753 754 /* allocate an entry and add the message at the end of the history */ 755 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 756 if (p != NULL) 757 { 758 if (len < 0) 759 len = (int)STRLEN(s); 760 /* remove leading and trailing newlines */ 761 while (len > 0 && *s == '\n') 762 { 763 ++s; 764 --len; 765 } 766 while (len > 0 && s[len - 1] == '\n') 767 --len; 768 p->msg = vim_strnsave(s, len); 769 p->next = NULL; 770 p->attr = attr; 771 if (last_msg_hist != NULL) 772 last_msg_hist->next = p; 773 last_msg_hist = p; 774 if (first_msg_hist == NULL) 775 first_msg_hist = last_msg_hist; 776 ++msg_hist_len; 777 } 778 } 779 780 /* 781 * Delete the first (oldest) message from the history. 782 * Returns FAIL if there are no messages. 783 */ 784 int 785 delete_first_msg(void) 786 { 787 struct msg_hist *p; 788 789 if (msg_hist_len <= 0) 790 return FAIL; 791 p = first_msg_hist; 792 first_msg_hist = p->next; 793 if (first_msg_hist == NULL) 794 last_msg_hist = NULL; /* history is empty */ 795 vim_free(p->msg); 796 vim_free(p); 797 --msg_hist_len; 798 return OK; 799 } 800 801 /* 802 * ":messages" command. 803 */ 804 void 805 ex_messages(exarg_T *eap) 806 { 807 struct msg_hist *p; 808 char_u *s; 809 int c = 0; 810 811 if (STRCMP(eap->arg, "clear") == 0) 812 { 813 int keep = eap->addr_count == 0 ? 0 : eap->line2; 814 815 while (msg_hist_len > keep) 816 (void)delete_first_msg(); 817 return; 818 } 819 820 if (*eap->arg != NUL) 821 { 822 EMSG(_(e_invarg)); 823 return; 824 } 825 826 msg_hist_off = TRUE; 827 828 p = first_msg_hist; 829 if (eap->addr_count != 0) 830 { 831 /* Count total messages */ 832 for (; p != NULL && !got_int; p = p->next) 833 c++; 834 835 c -= eap->line2; 836 837 /* Skip without number of messages specified */ 838 for (p = first_msg_hist; p != NULL && !got_int && c > 0; 839 p = p->next, c--); 840 } 841 842 if (p == first_msg_hist) 843 { 844 s = mch_getenv((char_u *)"LANG"); 845 if (s != NULL && *s != NUL) 846 msg_attr((char_u *) 847 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 848 hl_attr(HLF_T)); 849 } 850 851 /* Display what was not skipped. */ 852 for (; p != NULL && !got_int; p = p->next) 853 if (p->msg != NULL) 854 msg_attr(p->msg, p->attr); 855 856 msg_hist_off = FALSE; 857 } 858 859 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 860 /* 861 * Call this after prompting the user. This will avoid a hit-return message 862 * and a delay. 863 */ 864 void 865 msg_end_prompt(void) 866 { 867 need_wait_return = FALSE; 868 emsg_on_display = FALSE; 869 cmdline_row = msg_row; 870 msg_col = 0; 871 msg_clr_eos(); 872 lines_left = -1; 873 } 874 #endif 875 876 /* 877 * wait for the user to hit a key (normally a return) 878 * if 'redraw' is TRUE, clear and redraw the screen 879 * if 'redraw' is FALSE, just redraw the screen 880 * if 'redraw' is -1, don't redraw at all 881 */ 882 void 883 wait_return(int redraw) 884 { 885 int c; 886 int oldState; 887 int tmpState; 888 int had_got_int; 889 int save_Recording; 890 FILE *save_scriptout; 891 892 if (redraw == TRUE) 893 must_redraw = CLEAR; 894 895 /* If using ":silent cmd", don't wait for a return. Also don't set 896 * need_wait_return to do it later. */ 897 if (msg_silent != 0) 898 return; 899 900 /* 901 * When inside vgetc(), we can't wait for a typed character at all. 902 * With the global command (and some others) we only need one return at 903 * the end. Adjust cmdline_row to avoid the next message overwriting the 904 * last one. 905 */ 906 if (vgetc_busy > 0) 907 return; 908 need_wait_return = TRUE; 909 if (no_wait_return) 910 { 911 if (!exmode_active) 912 cmdline_row = msg_row; 913 return; 914 } 915 916 redir_off = TRUE; /* don't redirect this message */ 917 oldState = State; 918 if (quit_more) 919 { 920 c = CAR; /* just pretend CR was hit */ 921 quit_more = FALSE; 922 got_int = FALSE; 923 } 924 else if (exmode_active) 925 { 926 MSG_PUTS(" "); /* make sure the cursor is on the right line */ 927 c = CAR; /* no need for a return in ex mode */ 928 got_int = FALSE; 929 } 930 else 931 { 932 /* Make sure the hit-return prompt is on screen when 'guioptions' was 933 * just changed. */ 934 screenalloc(FALSE); 935 936 State = HITRETURN; 937 #ifdef FEAT_MOUSE 938 setmouse(); 939 #endif 940 #ifdef USE_ON_FLY_SCROLL 941 dont_scroll = TRUE; /* disallow scrolling here */ 942 #endif 943 cmdline_row = msg_row; 944 945 /* Avoid the sequence that the user types ":" at the hit-return prompt 946 * to start an Ex command, but the file-changed dialog gets in the 947 * way. */ 948 if (need_check_timestamps) 949 check_timestamps(FALSE); 950 951 hit_return_msg(); 952 953 do 954 { 955 /* Remember "got_int", if it is set vgetc() probably returns a 956 * CTRL-C, but we need to loop then. */ 957 had_got_int = got_int; 958 959 /* Don't do mappings here, we put the character back in the 960 * typeahead buffer. */ 961 ++no_mapping; 962 ++allow_keys; 963 964 /* Temporarily disable Recording. If Recording is active, the 965 * character will be recorded later, since it will be added to the 966 * typebuf after the loop */ 967 save_Recording = Recording; 968 save_scriptout = scriptout; 969 Recording = FALSE; 970 scriptout = NULL; 971 c = safe_vgetc(); 972 if (had_got_int && !global_busy) 973 got_int = FALSE; 974 --no_mapping; 975 --allow_keys; 976 Recording = save_Recording; 977 scriptout = save_scriptout; 978 979 #ifdef FEAT_CLIPBOARD 980 /* Strange way to allow copying (yanking) a modeless selection at 981 * the hit-enter prompt. Use CTRL-Y, because the same is used in 982 * Cmdline-mode and it's harmless when there is no selection. */ 983 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 984 { 985 clip_copy_modeless_selection(TRUE); 986 c = K_IGNORE; 987 } 988 #endif 989 990 /* 991 * Allow scrolling back in the messages. 992 * Also accept scroll-down commands when messages fill the screen, 993 * to avoid that typing one 'j' too many makes the messages 994 * disappear. 995 */ 996 if (p_more && !p_cp) 997 { 998 if (c == 'b' || c == 'k' || c == 'u' || c == 'g' 999 || c == K_UP || c == K_PAGEUP) 1000 { 1001 if (msg_scrolled > Rows) 1002 /* scroll back to show older messages */ 1003 do_more_prompt(c); 1004 else 1005 { 1006 msg_didout = FALSE; 1007 c = K_IGNORE; 1008 msg_col = 1009 #ifdef FEAT_RIGHTLEFT 1010 cmdmsg_rl ? Columns - 1 : 1011 #endif 1012 0; 1013 } 1014 if (quit_more) 1015 { 1016 c = CAR; /* just pretend CR was hit */ 1017 quit_more = FALSE; 1018 got_int = FALSE; 1019 } 1020 else if (c != K_IGNORE) 1021 { 1022 c = K_IGNORE; 1023 hit_return_msg(); 1024 } 1025 } 1026 else if (msg_scrolled > Rows - 2 1027 && (c == 'j' || c == 'd' || c == 'f' 1028 || c == K_DOWN || c == K_PAGEDOWN)) 1029 c = K_IGNORE; 1030 } 1031 } while ((had_got_int && c == Ctrl_C) 1032 || c == K_IGNORE 1033 #ifdef FEAT_GUI 1034 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 1035 #endif 1036 #ifdef FEAT_MOUSE 1037 || c == K_LEFTDRAG || c == K_LEFTRELEASE 1038 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 1039 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 1040 || c == K_MOUSELEFT || c == K_MOUSERIGHT 1041 || c == K_MOUSEDOWN || c == K_MOUSEUP 1042 || (!mouse_has(MOUSE_RETURN) 1043 && mouse_row < msg_row 1044 && (c == K_LEFTMOUSE 1045 || c == K_MIDDLEMOUSE 1046 || c == K_RIGHTMOUSE 1047 || c == K_X1MOUSE 1048 || c == K_X2MOUSE)) 1049 #endif 1050 ); 1051 ui_breakcheck(); 1052 #ifdef FEAT_MOUSE 1053 /* 1054 * Avoid that the mouse-up event causes visual mode to start. 1055 */ 1056 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 1057 || c == K_X1MOUSE || c == K_X2MOUSE) 1058 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 1059 else 1060 #endif 1061 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 1062 { 1063 /* Put the character back in the typeahead buffer. Don't use the 1064 * stuff buffer, because lmaps wouldn't work. */ 1065 ins_char_typebuf(c); 1066 do_redraw = TRUE; /* need a redraw even though there is 1067 typeahead */ 1068 } 1069 } 1070 redir_off = FALSE; 1071 1072 /* 1073 * If the user hits ':', '?' or '/' we get a command line from the next 1074 * line. 1075 */ 1076 if (c == ':' || c == '?' || c == '/') 1077 { 1078 if (!exmode_active) 1079 cmdline_row = msg_row; 1080 skip_redraw = TRUE; /* skip redraw once */ 1081 do_redraw = FALSE; 1082 } 1083 1084 /* 1085 * If the window size changed set_shellsize() will redraw the screen. 1086 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1087 * typed. 1088 */ 1089 tmpState = State; 1090 State = oldState; /* restore State before set_shellsize */ 1091 #ifdef FEAT_MOUSE 1092 setmouse(); 1093 #endif 1094 msg_check(); 1095 1096 #if defined(UNIX) || defined(VMS) 1097 /* 1098 * When switching screens, we need to output an extra newline on exit. 1099 */ 1100 if (swapping_screen() && !termcap_active) 1101 newline_on_exit = TRUE; 1102 #endif 1103 1104 need_wait_return = FALSE; 1105 did_wait_return = TRUE; 1106 emsg_on_display = FALSE; /* can delete error message now */ 1107 lines_left = -1; /* reset lines_left at next msg_start() */ 1108 reset_last_sourcing(); 1109 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1110 (Rows - cmdline_row - 1) * Columns + sc_col) 1111 { 1112 vim_free(keep_msg); 1113 keep_msg = NULL; /* don't redisplay message, it's too long */ 1114 } 1115 1116 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1117 { 1118 starttermcap(); /* start termcap before redrawing */ 1119 shell_resized(); 1120 } 1121 else if (!skip_redraw 1122 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1123 { 1124 starttermcap(); /* start termcap before redrawing */ 1125 redraw_later(VALID); 1126 } 1127 } 1128 1129 /* 1130 * Write the hit-return prompt. 1131 */ 1132 static void 1133 hit_return_msg(void) 1134 { 1135 int save_p_more = p_more; 1136 1137 p_more = FALSE; /* don't want see this message when scrolling back */ 1138 if (msg_didout) /* start on a new line */ 1139 msg_putchar('\n'); 1140 if (got_int) 1141 MSG_PUTS(_("Interrupt: ")); 1142 1143 MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), hl_attr(HLF_R)); 1144 if (!msg_use_printf()) 1145 msg_clr_eos(); 1146 p_more = save_p_more; 1147 } 1148 1149 /* 1150 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1151 */ 1152 void 1153 set_keep_msg(char_u *s, int attr) 1154 { 1155 vim_free(keep_msg); 1156 if (s != NULL && msg_silent == 0) 1157 keep_msg = vim_strsave(s); 1158 else 1159 keep_msg = NULL; 1160 keep_msg_more = FALSE; 1161 keep_msg_attr = attr; 1162 } 1163 1164 #if defined(FEAT_TERMRESPONSE) || defined(PROTO) 1165 /* 1166 * If there currently is a message being displayed, set "keep_msg" to it, so 1167 * that it will be displayed again after redraw. 1168 */ 1169 void 1170 set_keep_msg_from_hist(void) 1171 { 1172 if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0 1173 && (State & NORMAL)) 1174 set_keep_msg(last_msg_hist->msg, last_msg_hist->attr); 1175 } 1176 #endif 1177 1178 /* 1179 * Prepare for outputting characters in the command line. 1180 */ 1181 void 1182 msg_start(void) 1183 { 1184 int did_return = FALSE; 1185 1186 if (!msg_silent) 1187 { 1188 vim_free(keep_msg); 1189 keep_msg = NULL; /* don't display old message now */ 1190 } 1191 1192 #ifdef FEAT_EVAL 1193 if (need_clr_eos) 1194 { 1195 /* Halfway an ":echo" command and getting an (error) message: clear 1196 * any text from the command. */ 1197 need_clr_eos = FALSE; 1198 msg_clr_eos(); 1199 } 1200 #endif 1201 1202 if (!msg_scroll && full_screen) /* overwrite last message */ 1203 { 1204 msg_row = cmdline_row; 1205 msg_col = 1206 #ifdef FEAT_RIGHTLEFT 1207 cmdmsg_rl ? Columns - 1 : 1208 #endif 1209 0; 1210 } 1211 else if (msg_didout) /* start message on next line */ 1212 { 1213 msg_putchar('\n'); 1214 did_return = TRUE; 1215 if (exmode_active != EXMODE_NORMAL) 1216 cmdline_row = msg_row; 1217 } 1218 if (!msg_didany || lines_left < 0) 1219 msg_starthere(); 1220 if (msg_silent == 0) 1221 { 1222 msg_didout = FALSE; /* no output on current line yet */ 1223 cursor_off(); 1224 } 1225 1226 /* when redirecting, may need to start a new line. */ 1227 if (!did_return) 1228 redir_write((char_u *)"\n", -1); 1229 } 1230 1231 /* 1232 * Note that the current msg position is where messages start. 1233 */ 1234 void 1235 msg_starthere(void) 1236 { 1237 lines_left = cmdline_row; 1238 msg_didany = FALSE; 1239 } 1240 1241 void 1242 msg_putchar(int c) 1243 { 1244 msg_putchar_attr(c, 0); 1245 } 1246 1247 void 1248 msg_putchar_attr(int c, int attr) 1249 { 1250 #ifdef FEAT_MBYTE 1251 char_u buf[MB_MAXBYTES + 1]; 1252 #else 1253 char_u buf[4]; 1254 #endif 1255 1256 if (IS_SPECIAL(c)) 1257 { 1258 buf[0] = K_SPECIAL; 1259 buf[1] = K_SECOND(c); 1260 buf[2] = K_THIRD(c); 1261 buf[3] = NUL; 1262 } 1263 else 1264 { 1265 #ifdef FEAT_MBYTE 1266 buf[(*mb_char2bytes)(c, buf)] = NUL; 1267 #else 1268 buf[0] = c; 1269 buf[1] = NUL; 1270 #endif 1271 } 1272 msg_puts_attr(buf, attr); 1273 } 1274 1275 void 1276 msg_outnum(long n) 1277 { 1278 char_u buf[20]; 1279 1280 sprintf((char *)buf, "%ld", n); 1281 msg_puts(buf); 1282 } 1283 1284 void 1285 msg_home_replace(char_u *fname) 1286 { 1287 msg_home_replace_attr(fname, 0); 1288 } 1289 1290 #if defined(FEAT_FIND_ID) || defined(PROTO) 1291 void 1292 msg_home_replace_hl(char_u *fname) 1293 { 1294 msg_home_replace_attr(fname, hl_attr(HLF_D)); 1295 } 1296 #endif 1297 1298 static void 1299 msg_home_replace_attr(char_u *fname, int attr) 1300 { 1301 char_u *name; 1302 1303 name = home_replace_save(NULL, fname); 1304 if (name != NULL) 1305 msg_outtrans_attr(name, attr); 1306 vim_free(name); 1307 } 1308 1309 /* 1310 * Output 'len' characters in 'str' (including NULs) with translation 1311 * if 'len' is -1, output upto a NUL character. 1312 * Use attributes 'attr'. 1313 * Return the number of characters it takes on the screen. 1314 */ 1315 int 1316 msg_outtrans(char_u *str) 1317 { 1318 return msg_outtrans_attr(str, 0); 1319 } 1320 1321 int 1322 msg_outtrans_attr(char_u *str, int attr) 1323 { 1324 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1325 } 1326 1327 int 1328 msg_outtrans_len(char_u *str, int len) 1329 { 1330 return msg_outtrans_len_attr(str, len, 0); 1331 } 1332 1333 /* 1334 * Output one character at "p". Return pointer to the next character. 1335 * Handles multi-byte characters. 1336 */ 1337 char_u * 1338 msg_outtrans_one(char_u *p, int attr) 1339 { 1340 #ifdef FEAT_MBYTE 1341 int l; 1342 1343 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1344 { 1345 msg_outtrans_len_attr(p, l, attr); 1346 return p + l; 1347 } 1348 #endif 1349 msg_puts_attr(transchar_byte(*p), attr); 1350 return p + 1; 1351 } 1352 1353 int 1354 msg_outtrans_len_attr(char_u *msgstr, int len, int attr) 1355 { 1356 int retval = 0; 1357 char_u *str = msgstr; 1358 char_u *plain_start = msgstr; 1359 char_u *s; 1360 #ifdef FEAT_MBYTE 1361 int mb_l; 1362 int c; 1363 #endif 1364 1365 /* if MSG_HIST flag set, add message to history */ 1366 if (attr & MSG_HIST) 1367 { 1368 add_msg_hist(str, len, attr); 1369 attr &= ~MSG_HIST; 1370 } 1371 1372 #ifdef FEAT_MBYTE 1373 /* If the string starts with a composing character first draw a space on 1374 * which the composing char can be drawn. */ 1375 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1376 msg_puts_attr((char_u *)" ", attr); 1377 #endif 1378 1379 /* 1380 * Go over the string. Special characters are translated and printed. 1381 * Normal characters are printed several at a time. 1382 */ 1383 while (--len >= 0) 1384 { 1385 #ifdef FEAT_MBYTE 1386 if (enc_utf8) 1387 /* Don't include composing chars after the end. */ 1388 mb_l = utfc_ptr2len_len(str, len + 1); 1389 else if (has_mbyte) 1390 mb_l = (*mb_ptr2len)(str); 1391 else 1392 mb_l = 1; 1393 if (has_mbyte && mb_l > 1) 1394 { 1395 c = (*mb_ptr2char)(str); 1396 if (vim_isprintc(c)) 1397 /* printable multi-byte char: count the cells. */ 1398 retval += (*mb_ptr2cells)(str); 1399 else 1400 { 1401 /* unprintable multi-byte char: print the printable chars so 1402 * far and the translation of the unprintable char. */ 1403 if (str > plain_start) 1404 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1405 attr); 1406 plain_start = str + mb_l; 1407 msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr); 1408 retval += char2cells(c); 1409 } 1410 len -= mb_l - 1; 1411 str += mb_l; 1412 } 1413 else 1414 #endif 1415 { 1416 s = transchar_byte(*str); 1417 if (s[1] != NUL) 1418 { 1419 /* unprintable char: print the printable chars so far and the 1420 * translation of the unprintable char. */ 1421 if (str > plain_start) 1422 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1423 attr); 1424 plain_start = str + 1; 1425 msg_puts_attr(s, attr == 0 ? hl_attr(HLF_8) : attr); 1426 retval += (int)STRLEN(s); 1427 } 1428 else 1429 ++retval; 1430 ++str; 1431 } 1432 } 1433 1434 if (str > plain_start) 1435 /* print the printable chars at the end */ 1436 msg_puts_attr_len(plain_start, (int)(str - plain_start), attr); 1437 1438 return retval; 1439 } 1440 1441 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1442 void 1443 msg_make(char_u *arg) 1444 { 1445 int i; 1446 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1447 1448 arg = skipwhite(arg); 1449 for (i = 5; *arg && i >= 0; --i) 1450 if (*arg++ != str[i]) 1451 break; 1452 if (i < 0) 1453 { 1454 msg_putchar('\n'); 1455 for (i = 0; rs[i]; ++i) 1456 msg_putchar(rs[i] - 3); 1457 } 1458 } 1459 #endif 1460 1461 /* 1462 * Output the string 'str' upto a NUL character. 1463 * Return the number of characters it takes on the screen. 1464 * 1465 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1466 * following character and shown as <F1>, <S-Up> etc. Any other character 1467 * which is not printable shown in <> form. 1468 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1469 * If a character is displayed in one of these special ways, is also 1470 * highlighted (its highlight name is '8' in the p_hl variable). 1471 * Otherwise characters are not highlighted. 1472 * This function is used to show mappings, where we want to see how to type 1473 * the character/string -- webb 1474 */ 1475 int 1476 msg_outtrans_special( 1477 char_u *strstart, 1478 int from) /* TRUE for lhs of a mapping */ 1479 { 1480 char_u *str = strstart; 1481 int retval = 0; 1482 char_u *string; 1483 int attr; 1484 int len; 1485 1486 attr = hl_attr(HLF_8); 1487 while (*str != NUL) 1488 { 1489 /* Leading and trailing spaces need to be displayed in <> form. */ 1490 if ((str == strstart || str[1] == NUL) && *str == ' ') 1491 { 1492 string = (char_u *)"<Space>"; 1493 ++str; 1494 } 1495 else 1496 string = str2special(&str, from); 1497 len = vim_strsize(string); 1498 /* Highlight special keys */ 1499 msg_puts_attr(string, len > 1 1500 #ifdef FEAT_MBYTE 1501 && (*mb_ptr2len)(string) <= 1 1502 #endif 1503 ? attr : 0); 1504 retval += len; 1505 } 1506 return retval; 1507 } 1508 1509 #if defined(FEAT_EVAL) || defined(PROTO) 1510 /* 1511 * Return the lhs or rhs of a mapping, with the key codes turned into printable 1512 * strings, in an allocated string. 1513 */ 1514 char_u * 1515 str2special_save( 1516 char_u *str, 1517 int is_lhs) /* TRUE for lhs, FALSE for rhs */ 1518 { 1519 garray_T ga; 1520 char_u *p = str; 1521 1522 ga_init2(&ga, 1, 40); 1523 while (*p != NUL) 1524 ga_concat(&ga, str2special(&p, is_lhs)); 1525 ga_append(&ga, NUL); 1526 return (char_u *)ga.ga_data; 1527 } 1528 #endif 1529 1530 /* 1531 * Return the printable string for the key codes at "*sp". 1532 * Used for translating the lhs or rhs of a mapping to printable chars. 1533 * Advances "sp" to the next code. 1534 */ 1535 char_u * 1536 str2special( 1537 char_u **sp, 1538 int from) /* TRUE for lhs of mapping */ 1539 { 1540 int c; 1541 static char_u buf[7]; 1542 char_u *str = *sp; 1543 int modifiers = 0; 1544 int special = FALSE; 1545 1546 #ifdef FEAT_MBYTE 1547 if (has_mbyte) 1548 { 1549 char_u *p; 1550 1551 /* Try to un-escape a multi-byte character. Return the un-escaped 1552 * string if it is a multi-byte character. */ 1553 p = mb_unescape(sp); 1554 if (p != NULL) 1555 return p; 1556 } 1557 #endif 1558 1559 c = *str; 1560 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1561 { 1562 if (str[1] == KS_MODIFIER) 1563 { 1564 modifiers = str[2]; 1565 str += 3; 1566 c = *str; 1567 } 1568 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1569 { 1570 c = TO_SPECIAL(str[1], str[2]); 1571 str += 2; 1572 if (c == KS_ZERO) /* display <Nul> as ^@ or <Nul> */ 1573 c = NUL; 1574 } 1575 if (IS_SPECIAL(c) || modifiers) /* special key */ 1576 special = TRUE; 1577 } 1578 1579 #ifdef FEAT_MBYTE 1580 if (has_mbyte && !IS_SPECIAL(c)) 1581 { 1582 int len = (*mb_ptr2len)(str); 1583 1584 /* For multi-byte characters check for an illegal byte. */ 1585 if (has_mbyte && MB_BYTE2LEN(*str) > len) 1586 { 1587 transchar_nonprint(buf, c); 1588 *sp = str + 1; 1589 return buf; 1590 } 1591 /* Since 'special' is TRUE the multi-byte character 'c' will be 1592 * processed by get_special_key_name() */ 1593 c = (*mb_ptr2char)(str); 1594 *sp = str + len; 1595 } 1596 else 1597 #endif 1598 *sp = str + 1; 1599 1600 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1601 * Use <Space> only for lhs of a mapping. */ 1602 if (special || char2cells(c) > 1 || (from && c == ' ')) 1603 return get_special_key_name(c, modifiers); 1604 buf[0] = c; 1605 buf[1] = NUL; 1606 return buf; 1607 } 1608 1609 /* 1610 * Translate a key sequence into special key names. 1611 */ 1612 void 1613 str2specialbuf(char_u *sp, char_u *buf, int len) 1614 { 1615 char_u *s; 1616 1617 *buf = NUL; 1618 while (*sp) 1619 { 1620 s = str2special(&sp, FALSE); 1621 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1622 STRCAT(buf, s); 1623 } 1624 } 1625 1626 /* 1627 * print line for :print or :list command 1628 */ 1629 void 1630 msg_prt_line(char_u *s, int list) 1631 { 1632 int c; 1633 int col = 0; 1634 int n_extra = 0; 1635 int c_extra = 0; 1636 char_u *p_extra = NULL; /* init to make SASC shut up */ 1637 int n; 1638 int attr = 0; 1639 char_u *trail = NULL; 1640 #ifdef FEAT_MBYTE 1641 int l; 1642 char_u buf[MB_MAXBYTES + 1]; 1643 #endif 1644 1645 if (curwin->w_p_list) 1646 list = TRUE; 1647 1648 /* find start of trailing whitespace */ 1649 if (list && lcs_trail) 1650 { 1651 trail = s + STRLEN(s); 1652 while (trail > s && vim_iswhite(trail[-1])) 1653 --trail; 1654 } 1655 1656 /* output a space for an empty line, otherwise the line will be 1657 * overwritten */ 1658 if (*s == NUL && !(list && lcs_eol != NUL)) 1659 msg_putchar(' '); 1660 1661 while (!got_int) 1662 { 1663 if (n_extra > 0) 1664 { 1665 --n_extra; 1666 if (c_extra) 1667 c = c_extra; 1668 else 1669 c = *p_extra++; 1670 } 1671 #ifdef FEAT_MBYTE 1672 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1673 { 1674 col += (*mb_ptr2cells)(s); 1675 if (lcs_nbsp != NUL && list 1676 && (mb_ptr2char(s) == 160 1677 || mb_ptr2char(s) == 0x202f)) 1678 { 1679 mb_char2bytes(lcs_nbsp, buf); 1680 buf[(*mb_ptr2len)(buf)] = NUL; 1681 } 1682 else 1683 { 1684 mch_memmove(buf, s, (size_t)l); 1685 buf[l] = NUL; 1686 } 1687 msg_puts(buf); 1688 s += l; 1689 continue; 1690 } 1691 #endif 1692 else 1693 { 1694 attr = 0; 1695 c = *s++; 1696 if (c == TAB && (!list || lcs_tab1)) 1697 { 1698 /* tab amount depends on current column */ 1699 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1700 if (!list) 1701 { 1702 c = ' '; 1703 c_extra = ' '; 1704 } 1705 else 1706 { 1707 c = lcs_tab1; 1708 c_extra = lcs_tab2; 1709 attr = hl_attr(HLF_8); 1710 } 1711 } 1712 else if (c == 160 && list && lcs_nbsp != NUL) 1713 { 1714 c = lcs_nbsp; 1715 attr = hl_attr(HLF_8); 1716 } 1717 else if (c == NUL && list && lcs_eol != NUL) 1718 { 1719 p_extra = (char_u *)""; 1720 c_extra = NUL; 1721 n_extra = 1; 1722 c = lcs_eol; 1723 attr = hl_attr(HLF_AT); 1724 --s; 1725 } 1726 else if (c != NUL && (n = byte2cells(c)) > 1) 1727 { 1728 n_extra = n - 1; 1729 p_extra = transchar_byte(c); 1730 c_extra = NUL; 1731 c = *p_extra++; 1732 /* Use special coloring to be able to distinguish <hex> from 1733 * the same in plain text. */ 1734 attr = hl_attr(HLF_8); 1735 } 1736 else if (c == ' ' && trail != NULL && s > trail) 1737 { 1738 c = lcs_trail; 1739 attr = hl_attr(HLF_8); 1740 } 1741 else if (c == ' ' && list && lcs_space != NUL) 1742 { 1743 c = lcs_space; 1744 attr = hl_attr(HLF_8); 1745 } 1746 } 1747 1748 if (c == NUL) 1749 break; 1750 1751 msg_putchar_attr(c, attr); 1752 col++; 1753 } 1754 msg_clr_eos(); 1755 } 1756 1757 #ifdef FEAT_MBYTE 1758 /* 1759 * Use screen_puts() to output one multi-byte character. 1760 * Return the pointer "s" advanced to the next character. 1761 */ 1762 static char_u * 1763 screen_puts_mbyte(char_u *s, int l, int attr) 1764 { 1765 int cw; 1766 1767 msg_didout = TRUE; /* remember that line is not empty */ 1768 cw = (*mb_ptr2cells)(s); 1769 if (cw > 1 && ( 1770 #ifdef FEAT_RIGHTLEFT 1771 cmdmsg_rl ? msg_col <= 1 : 1772 #endif 1773 msg_col == Columns - 1)) 1774 { 1775 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1776 msg_screen_putchar('>', hl_attr(HLF_AT)); 1777 return s; 1778 } 1779 1780 screen_puts_len(s, l, msg_row, msg_col, attr); 1781 #ifdef FEAT_RIGHTLEFT 1782 if (cmdmsg_rl) 1783 { 1784 msg_col -= cw; 1785 if (msg_col == 0) 1786 { 1787 msg_col = Columns; 1788 ++msg_row; 1789 } 1790 } 1791 else 1792 #endif 1793 { 1794 msg_col += cw; 1795 if (msg_col >= Columns) 1796 { 1797 msg_col = 0; 1798 ++msg_row; 1799 } 1800 } 1801 return s + l; 1802 } 1803 #endif 1804 1805 /* 1806 * Output a string to the screen at position msg_row, msg_col. 1807 * Update msg_row and msg_col for the next message. 1808 */ 1809 void 1810 msg_puts(char_u *s) 1811 { 1812 msg_puts_attr(s, 0); 1813 } 1814 1815 void 1816 msg_puts_title( 1817 char_u *s) 1818 { 1819 msg_puts_attr(s, hl_attr(HLF_T)); 1820 } 1821 1822 /* 1823 * Show a message in such a way that it always fits in the line. Cut out a 1824 * part in the middle and replace it with "..." when necessary. 1825 * Does not handle multi-byte characters! 1826 */ 1827 void 1828 msg_puts_long_attr(char_u *longstr, int attr) 1829 { 1830 msg_puts_long_len_attr(longstr, (int)STRLEN(longstr), attr); 1831 } 1832 1833 void 1834 msg_puts_long_len_attr(char_u *longstr, int len, int attr) 1835 { 1836 int slen = len; 1837 int room; 1838 1839 room = Columns - msg_col; 1840 if (len > room && room >= 20) 1841 { 1842 slen = (room - 3) / 2; 1843 msg_outtrans_len_attr(longstr, slen, attr); 1844 msg_puts_attr((char_u *)"...", hl_attr(HLF_8)); 1845 } 1846 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 1847 } 1848 1849 /* 1850 * Basic function for writing a message with highlight attributes. 1851 */ 1852 void 1853 msg_puts_attr(char_u *s, int attr) 1854 { 1855 msg_puts_attr_len(s, -1, attr); 1856 } 1857 1858 /* 1859 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 1860 * When "maxlen" is -1 there is no maximum length. 1861 * When "maxlen" is >= 0 the message is not put in the history. 1862 */ 1863 static void 1864 msg_puts_attr_len(char_u *str, int maxlen, int attr) 1865 { 1866 /* 1867 * If redirection is on, also write to the redirection file. 1868 */ 1869 redir_write(str, maxlen); 1870 1871 /* 1872 * Don't print anything when using ":silent cmd". 1873 */ 1874 if (msg_silent != 0) 1875 return; 1876 1877 /* if MSG_HIST flag set, add message to history */ 1878 if ((attr & MSG_HIST) && maxlen < 0) 1879 { 1880 add_msg_hist(str, -1, attr); 1881 attr &= ~MSG_HIST; 1882 } 1883 1884 /* 1885 * When writing something to the screen after it has scrolled, requires a 1886 * wait-return prompt later. Needed when scrolling, resetting 1887 * need_wait_return after some prompt, and then outputting something 1888 * without scrolling 1889 */ 1890 if (msg_scrolled != 0 && !msg_scrolled_ign) 1891 need_wait_return = TRUE; 1892 msg_didany = TRUE; /* remember that something was outputted */ 1893 1894 /* 1895 * If there is no valid screen, use fprintf so we can see error messages. 1896 * If termcap is not active, we may be writing in an alternate console 1897 * window, cursor positioning may not work correctly (window size may be 1898 * different, e.g. for Win32 console) or we just don't know where the 1899 * cursor is. 1900 */ 1901 if (msg_use_printf()) 1902 msg_puts_printf(str, maxlen); 1903 else 1904 msg_puts_display(str, maxlen, attr, FALSE); 1905 } 1906 1907 /* 1908 * The display part of msg_puts_attr_len(). 1909 * May be called recursively to display scroll-back text. 1910 */ 1911 static void 1912 msg_puts_display( 1913 char_u *str, 1914 int maxlen, 1915 int attr, 1916 int recurse) 1917 { 1918 char_u *s = str; 1919 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 1920 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 1921 #ifdef FEAT_MBYTE 1922 int l; 1923 int cw; 1924 #endif 1925 char_u *sb_str = str; 1926 int sb_col = msg_col; 1927 int wrap; 1928 int did_last_char; 1929 1930 did_wait_return = FALSE; 1931 while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL) 1932 { 1933 /* 1934 * We are at the end of the screen line when: 1935 * - When outputting a newline. 1936 * - When outputting a character in the last column. 1937 */ 1938 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 1939 #ifdef FEAT_RIGHTLEFT 1940 cmdmsg_rl 1941 ? ( 1942 msg_col <= 1 1943 || (*s == TAB && msg_col <= 7) 1944 # ifdef FEAT_MBYTE 1945 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2) 1946 # endif 1947 ) 1948 : 1949 #endif 1950 (msg_col + t_col >= Columns - 1 1951 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 1952 # ifdef FEAT_MBYTE 1953 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1954 && msg_col + t_col >= Columns - 2) 1955 # endif 1956 )))) 1957 { 1958 /* 1959 * The screen is scrolled up when at the last row (some terminals 1960 * scroll automatically, some don't. To avoid problems we scroll 1961 * ourselves). 1962 */ 1963 if (t_col > 0) 1964 /* output postponed text */ 1965 t_puts(&t_col, t_s, s, attr); 1966 1967 /* When no more prompt and no more room, truncate here */ 1968 if (msg_no_more && lines_left == 0) 1969 break; 1970 1971 /* Scroll the screen up one line. */ 1972 msg_scroll_up(); 1973 1974 msg_row = Rows - 2; 1975 if (msg_col >= Columns) /* can happen after screen resize */ 1976 msg_col = Columns - 1; 1977 1978 /* Display char in last column before showing more-prompt. */ 1979 if (*s >= ' ' 1980 #ifdef FEAT_RIGHTLEFT 1981 && !cmdmsg_rl 1982 #endif 1983 ) 1984 { 1985 #ifdef FEAT_MBYTE 1986 if (has_mbyte) 1987 { 1988 if (enc_utf8 && maxlen >= 0) 1989 /* avoid including composing chars after the end */ 1990 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 1991 else 1992 l = (*mb_ptr2len)(s); 1993 s = screen_puts_mbyte(s, l, attr); 1994 } 1995 else 1996 #endif 1997 msg_screen_putchar(*s++, attr); 1998 did_last_char = TRUE; 1999 } 2000 else 2001 did_last_char = FALSE; 2002 2003 if (p_more) 2004 /* store text for scrolling back */ 2005 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2006 2007 inc_msg_scrolled(); 2008 need_wait_return = TRUE; /* may need wait_return in main() */ 2009 if (must_redraw < VALID) 2010 must_redraw = VALID; 2011 redraw_cmdline = TRUE; 2012 if (cmdline_row > 0 && !exmode_active) 2013 --cmdline_row; 2014 2015 /* 2016 * If screen is completely filled and 'more' is set then wait 2017 * for a character. 2018 */ 2019 if (lines_left > 0) 2020 --lines_left; 2021 if (p_more && lines_left == 0 && State != HITRETURN 2022 && !msg_no_more && !exmode_active) 2023 { 2024 #ifdef FEAT_CON_DIALOG 2025 if (do_more_prompt(NUL)) 2026 s = confirm_msg_tail; 2027 #else 2028 (void)do_more_prompt(NUL); 2029 #endif 2030 if (quit_more) 2031 return; 2032 } 2033 2034 /* When we displayed a char in last column need to check if there 2035 * is still more. */ 2036 if (did_last_char) 2037 continue; 2038 } 2039 2040 wrap = *s == '\n' 2041 || msg_col + t_col >= Columns 2042 #ifdef FEAT_MBYTE 2043 || (has_mbyte && (*mb_ptr2cells)(s) > 1 2044 && msg_col + t_col >= Columns - 1) 2045 #endif 2046 ; 2047 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 2048 || *s == '\t' || *s == BELL)) 2049 /* output any postponed text */ 2050 t_puts(&t_col, t_s, s, attr); 2051 2052 if (wrap && p_more && !recurse) 2053 /* store text for scrolling back */ 2054 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2055 2056 if (*s == '\n') /* go to next line */ 2057 { 2058 msg_didout = FALSE; /* remember that line is empty */ 2059 #ifdef FEAT_RIGHTLEFT 2060 if (cmdmsg_rl) 2061 msg_col = Columns - 1; 2062 else 2063 #endif 2064 msg_col = 0; 2065 if (++msg_row >= Rows) /* safety check */ 2066 msg_row = Rows - 1; 2067 } 2068 else if (*s == '\r') /* go to column 0 */ 2069 { 2070 msg_col = 0; 2071 } 2072 else if (*s == '\b') /* go to previous char */ 2073 { 2074 if (msg_col) 2075 --msg_col; 2076 } 2077 else if (*s == TAB) /* translate Tab into spaces */ 2078 { 2079 do 2080 msg_screen_putchar(' ', attr); 2081 while (msg_col & 7); 2082 } 2083 else if (*s == BELL) /* beep (from ":sh") */ 2084 vim_beep(BO_SH); 2085 else 2086 { 2087 #ifdef FEAT_MBYTE 2088 if (has_mbyte) 2089 { 2090 cw = (*mb_ptr2cells)(s); 2091 if (enc_utf8 && maxlen >= 0) 2092 /* avoid including composing chars after the end */ 2093 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2094 else 2095 l = (*mb_ptr2len)(s); 2096 } 2097 else 2098 { 2099 cw = 1; 2100 l = 1; 2101 } 2102 #endif 2103 /* When drawing from right to left or when a double-wide character 2104 * doesn't fit, draw a single character here. Otherwise collect 2105 * characters and draw them all at once later. */ 2106 #if defined(FEAT_RIGHTLEFT) || defined(FEAT_MBYTE) 2107 if ( 2108 # ifdef FEAT_RIGHTLEFT 2109 cmdmsg_rl 2110 # ifdef FEAT_MBYTE 2111 || 2112 # endif 2113 # endif 2114 # ifdef FEAT_MBYTE 2115 (cw > 1 && msg_col + t_col >= Columns - 1) 2116 # endif 2117 ) 2118 { 2119 # ifdef FEAT_MBYTE 2120 if (l > 1) 2121 s = screen_puts_mbyte(s, l, attr) - 1; 2122 else 2123 # endif 2124 msg_screen_putchar(*s, attr); 2125 } 2126 else 2127 #endif 2128 { 2129 /* postpone this character until later */ 2130 if (t_col == 0) 2131 t_s = s; 2132 #ifdef FEAT_MBYTE 2133 t_col += cw; 2134 s += l - 1; 2135 #else 2136 ++t_col; 2137 #endif 2138 } 2139 } 2140 ++s; 2141 } 2142 2143 /* output any postponed text */ 2144 if (t_col > 0) 2145 t_puts(&t_col, t_s, s, attr); 2146 if (p_more && !recurse) 2147 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2148 2149 msg_check(); 2150 } 2151 2152 /* 2153 * Scroll the screen up one line for displaying the next message line. 2154 */ 2155 static void 2156 msg_scroll_up(void) 2157 { 2158 #ifdef FEAT_GUI 2159 /* Remove the cursor before scrolling, ScreenLines[] is going 2160 * to become invalid. */ 2161 if (gui.in_use) 2162 gui_undraw_cursor(); 2163 #endif 2164 /* scrolling up always works */ 2165 screen_del_lines(0, 0, 1, (int)Rows, TRUE, NULL); 2166 2167 if (!can_clear((char_u *)" ")) 2168 { 2169 /* Scrolling up doesn't result in the right background. Set the 2170 * background here. It's not efficient, but avoids that we have to do 2171 * it all over the code. */ 2172 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2173 2174 /* Also clear the last char of the last but one line if it was not 2175 * cleared before to avoid a scroll-up. */ 2176 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2177 screen_fill((int)Rows - 2, (int)Rows - 1, 2178 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2179 } 2180 } 2181 2182 /* 2183 * Increment "msg_scrolled". 2184 */ 2185 static void 2186 inc_msg_scrolled(void) 2187 { 2188 #ifdef FEAT_EVAL 2189 if (*get_vim_var_str(VV_SCROLLSTART) == NUL) 2190 { 2191 char_u *p = sourcing_name; 2192 char_u *tofree = NULL; 2193 int len; 2194 2195 /* v:scrollstart is empty, set it to the script/function name and line 2196 * number */ 2197 if (p == NULL) 2198 p = (char_u *)_("Unknown"); 2199 else 2200 { 2201 len = (int)STRLEN(p) + 40; 2202 tofree = alloc(len); 2203 if (tofree != NULL) 2204 { 2205 vim_snprintf((char *)tofree, len, _("%s line %ld"), 2206 p, (long)sourcing_lnum); 2207 p = tofree; 2208 } 2209 } 2210 set_vim_var_string(VV_SCROLLSTART, p, -1); 2211 vim_free(tofree); 2212 } 2213 #endif 2214 ++msg_scrolled; 2215 } 2216 2217 /* 2218 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2219 * store the displayed text and remember where screen lines start. 2220 */ 2221 typedef struct msgchunk_S msgchunk_T; 2222 struct msgchunk_S 2223 { 2224 msgchunk_T *sb_next; 2225 msgchunk_T *sb_prev; 2226 char sb_eol; /* TRUE when line ends after this text */ 2227 int sb_msg_col; /* column in which text starts */ 2228 int sb_attr; /* text attributes */ 2229 char_u sb_text[1]; /* text to be displayed, actually longer */ 2230 }; 2231 2232 static msgchunk_T *last_msgchunk = NULL; /* last displayed text */ 2233 2234 static msgchunk_T *msg_sb_start(msgchunk_T *mps); 2235 static msgchunk_T *disp_sb_line(int row, msgchunk_T *smp); 2236 2237 static int do_clear_sb_text = FALSE; /* clear text on next msg */ 2238 2239 /* 2240 * Store part of a printed message for displaying when scrolling back. 2241 */ 2242 static void 2243 store_sb_text( 2244 char_u **sb_str, /* start of string */ 2245 char_u *s, /* just after string */ 2246 int attr, 2247 int *sb_col, 2248 int finish) /* line ends */ 2249 { 2250 msgchunk_T *mp; 2251 2252 if (do_clear_sb_text) 2253 { 2254 clear_sb_text(); 2255 do_clear_sb_text = FALSE; 2256 } 2257 2258 if (s > *sb_str) 2259 { 2260 mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str))); 2261 if (mp != NULL) 2262 { 2263 mp->sb_eol = finish; 2264 mp->sb_msg_col = *sb_col; 2265 mp->sb_attr = attr; 2266 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2267 2268 if (last_msgchunk == NULL) 2269 { 2270 last_msgchunk = mp; 2271 mp->sb_prev = NULL; 2272 } 2273 else 2274 { 2275 mp->sb_prev = last_msgchunk; 2276 last_msgchunk->sb_next = mp; 2277 last_msgchunk = mp; 2278 } 2279 mp->sb_next = NULL; 2280 } 2281 } 2282 else if (finish && last_msgchunk != NULL) 2283 last_msgchunk->sb_eol = TRUE; 2284 2285 *sb_str = s; 2286 *sb_col = 0; 2287 } 2288 2289 /* 2290 * Finished showing messages, clear the scroll-back text on the next message. 2291 */ 2292 void 2293 may_clear_sb_text(void) 2294 { 2295 do_clear_sb_text = TRUE; 2296 } 2297 2298 /* 2299 * Clear any text remembered for scrolling back. 2300 * Called when redrawing the screen. 2301 */ 2302 void 2303 clear_sb_text(void) 2304 { 2305 msgchunk_T *mp; 2306 2307 while (last_msgchunk != NULL) 2308 { 2309 mp = last_msgchunk->sb_prev; 2310 vim_free(last_msgchunk); 2311 last_msgchunk = mp; 2312 } 2313 } 2314 2315 /* 2316 * "g<" command. 2317 */ 2318 void 2319 show_sb_text(void) 2320 { 2321 msgchunk_T *mp; 2322 2323 /* Only show something if there is more than one line, otherwise it looks 2324 * weird, typing a command without output results in one line. */ 2325 mp = msg_sb_start(last_msgchunk); 2326 if (mp == NULL || mp->sb_prev == NULL) 2327 vim_beep(BO_MESS); 2328 else 2329 { 2330 do_more_prompt('G'); 2331 wait_return(FALSE); 2332 } 2333 } 2334 2335 /* 2336 * Move to the start of screen line in already displayed text. 2337 */ 2338 static msgchunk_T * 2339 msg_sb_start(msgchunk_T *mps) 2340 { 2341 msgchunk_T *mp = mps; 2342 2343 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2344 mp = mp->sb_prev; 2345 return mp; 2346 } 2347 2348 /* 2349 * Mark the last message chunk as finishing the line. 2350 */ 2351 void 2352 msg_sb_eol(void) 2353 { 2354 if (last_msgchunk != NULL) 2355 last_msgchunk->sb_eol = TRUE; 2356 } 2357 2358 /* 2359 * Display a screen line from previously displayed text at row "row". 2360 * Returns a pointer to the text for the next line (can be NULL). 2361 */ 2362 static msgchunk_T * 2363 disp_sb_line(int row, msgchunk_T *smp) 2364 { 2365 msgchunk_T *mp = smp; 2366 char_u *p; 2367 2368 for (;;) 2369 { 2370 msg_row = row; 2371 msg_col = mp->sb_msg_col; 2372 p = mp->sb_text; 2373 if (*p == '\n') /* don't display the line break */ 2374 ++p; 2375 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2376 if (mp->sb_eol || mp->sb_next == NULL) 2377 break; 2378 mp = mp->sb_next; 2379 } 2380 return mp->sb_next; 2381 } 2382 2383 /* 2384 * Output any postponed text for msg_puts_attr_len(). 2385 */ 2386 static void 2387 t_puts( 2388 int *t_col, 2389 char_u *t_s, 2390 char_u *s, 2391 int attr) 2392 { 2393 /* output postponed text */ 2394 msg_didout = TRUE; /* remember that line is not empty */ 2395 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2396 msg_col += *t_col; 2397 *t_col = 0; 2398 #ifdef FEAT_MBYTE 2399 /* If the string starts with a composing character don't increment the 2400 * column position for it. */ 2401 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2402 --msg_col; 2403 #endif 2404 if (msg_col >= Columns) 2405 { 2406 msg_col = 0; 2407 ++msg_row; 2408 } 2409 } 2410 2411 /* 2412 * Returns TRUE when messages should be printed with mch_errmsg(). 2413 * This is used when there is no valid screen, so we can see error messages. 2414 * If termcap is not active, we may be writing in an alternate console 2415 * window, cursor positioning may not work correctly (window size may be 2416 * different, e.g. for Win32 console) or we just don't know where the 2417 * cursor is. 2418 */ 2419 int 2420 msg_use_printf(void) 2421 { 2422 return (!msg_check_screen() 2423 #if defined(WIN3264) && !defined(FEAT_GUI_MSWIN) 2424 || !termcap_active 2425 #endif 2426 || (swapping_screen() && !termcap_active) 2427 ); 2428 } 2429 2430 /* 2431 * Print a message when there is no valid screen. 2432 */ 2433 static void 2434 msg_puts_printf(char_u *str, int maxlen) 2435 { 2436 char_u *s = str; 2437 char_u buf[4]; 2438 char_u *p; 2439 2440 #ifdef WIN3264 2441 if (!(silent_mode && p_verbose == 0)) 2442 mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */ 2443 #endif 2444 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 2445 { 2446 if (!(silent_mode && p_verbose == 0)) 2447 { 2448 /* NL --> CR NL translation (for Unix, not for "--version") */ 2449 /* NL --> CR translation (for Mac) */ 2450 p = &buf[0]; 2451 if (*s == '\n' && !info_message) 2452 *p++ = '\r'; 2453 #if defined(USE_CR) && !defined(MACOS_X_UNIX) 2454 else 2455 #endif 2456 *p++ = *s; 2457 *p = '\0'; 2458 if (info_message) /* informative message, not an error */ 2459 mch_msg((char *)buf); 2460 else 2461 mch_errmsg((char *)buf); 2462 } 2463 2464 /* primitive way to compute the current column */ 2465 #ifdef FEAT_RIGHTLEFT 2466 if (cmdmsg_rl) 2467 { 2468 if (*s == '\r' || *s == '\n') 2469 msg_col = Columns - 1; 2470 else 2471 --msg_col; 2472 } 2473 else 2474 #endif 2475 { 2476 if (*s == '\r' || *s == '\n') 2477 msg_col = 0; 2478 else 2479 ++msg_col; 2480 } 2481 ++s; 2482 } 2483 msg_didout = TRUE; /* assume that line is not empty */ 2484 2485 #ifdef WIN3264 2486 if (!(silent_mode && p_verbose == 0)) 2487 mch_settmode(TMODE_RAW); 2488 #endif 2489 } 2490 2491 /* 2492 * Show the more-prompt and handle the user response. 2493 * This takes care of scrolling back and displaying previously displayed text. 2494 * When at hit-enter prompt "typed_char" is the already typed character, 2495 * otherwise it's NUL. 2496 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2497 */ 2498 static int 2499 do_more_prompt(int typed_char) 2500 { 2501 static int entered = FALSE; 2502 int used_typed_char = typed_char; 2503 int oldState = State; 2504 int c; 2505 #ifdef FEAT_CON_DIALOG 2506 int retval = FALSE; 2507 #endif 2508 int toscroll; 2509 msgchunk_T *mp_last = NULL; 2510 msgchunk_T *mp; 2511 int i; 2512 2513 /* We get called recursively when a timer callback outputs a message. In 2514 * that case don't show another prompt. Also when at the hit-Enter prompt 2515 * and nothing was typed. */ 2516 if (entered || (State == HITRETURN && typed_char == 0)) 2517 return FALSE; 2518 entered = TRUE; 2519 2520 if (typed_char == 'G') 2521 { 2522 /* "g<": Find first line on the last page. */ 2523 mp_last = msg_sb_start(last_msgchunk); 2524 for (i = 0; i < Rows - 2 && mp_last != NULL 2525 && mp_last->sb_prev != NULL; ++i) 2526 mp_last = msg_sb_start(mp_last->sb_prev); 2527 } 2528 2529 State = ASKMORE; 2530 #ifdef FEAT_MOUSE 2531 setmouse(); 2532 #endif 2533 if (typed_char == NUL) 2534 msg_moremsg(FALSE); 2535 for (;;) 2536 { 2537 /* 2538 * Get a typed character directly from the user. 2539 */ 2540 if (used_typed_char != NUL) 2541 { 2542 c = used_typed_char; /* was typed at hit-enter prompt */ 2543 used_typed_char = NUL; 2544 } 2545 else 2546 c = get_keystroke(); 2547 2548 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2549 if (c == K_MENU) 2550 { 2551 int idx = get_menu_index(current_menu, ASKMORE); 2552 2553 /* Used a menu. If it starts with CTRL-Y, it must 2554 * be a "Copy" for the clipboard. Otherwise 2555 * assume that we end */ 2556 if (idx == MENU_INDEX_INVALID) 2557 continue; 2558 c = *current_menu->strings[idx]; 2559 if (c != NUL && current_menu->strings[idx][1] != NUL) 2560 ins_typebuf(current_menu->strings[idx] + 1, 2561 current_menu->noremap[idx], 0, TRUE, 2562 current_menu->silent[idx]); 2563 } 2564 #endif 2565 2566 toscroll = 0; 2567 switch (c) 2568 { 2569 case BS: /* scroll one line back */ 2570 case K_BS: 2571 case 'k': 2572 case K_UP: 2573 toscroll = -1; 2574 break; 2575 2576 case CAR: /* one extra line */ 2577 case NL: 2578 case 'j': 2579 case K_DOWN: 2580 toscroll = 1; 2581 break; 2582 2583 case 'u': /* Up half a page */ 2584 toscroll = -(Rows / 2); 2585 break; 2586 2587 case 'd': /* Down half a page */ 2588 toscroll = Rows / 2; 2589 break; 2590 2591 case 'b': /* one page back */ 2592 case K_PAGEUP: 2593 toscroll = -(Rows - 1); 2594 break; 2595 2596 case ' ': /* one extra page */ 2597 case 'f': 2598 case K_PAGEDOWN: 2599 case K_LEFTMOUSE: 2600 toscroll = Rows - 1; 2601 break; 2602 2603 case 'g': /* all the way back to the start */ 2604 toscroll = -999999; 2605 break; 2606 2607 case 'G': /* all the way to the end */ 2608 toscroll = 999999; 2609 lines_left = 999999; 2610 break; 2611 2612 case ':': /* start new command line */ 2613 #ifdef FEAT_CON_DIALOG 2614 if (!confirm_msg_used) 2615 #endif 2616 { 2617 /* Since got_int is set all typeahead will be flushed, but we 2618 * want to keep this ':', remember that in a special way. */ 2619 typeahead_noflush(':'); 2620 cmdline_row = Rows - 1; /* put ':' on this line */ 2621 skip_redraw = TRUE; /* skip redraw once */ 2622 need_wait_return = FALSE; /* don't wait in main() */ 2623 } 2624 /*FALLTHROUGH*/ 2625 case 'q': /* quit */ 2626 case Ctrl_C: 2627 case ESC: 2628 #ifdef FEAT_CON_DIALOG 2629 if (confirm_msg_used) 2630 { 2631 /* Jump to the choices of the dialog. */ 2632 retval = TRUE; 2633 } 2634 else 2635 #endif 2636 { 2637 got_int = TRUE; 2638 quit_more = TRUE; 2639 } 2640 /* When there is some more output (wrapping line) display that 2641 * without another prompt. */ 2642 lines_left = Rows - 1; 2643 break; 2644 2645 #ifdef FEAT_CLIPBOARD 2646 case Ctrl_Y: 2647 /* Strange way to allow copying (yanking) a modeless 2648 * selection at the more prompt. Use CTRL-Y, 2649 * because the same is used in Cmdline-mode and at the 2650 * hit-enter prompt. However, scrolling one line up 2651 * might be expected... */ 2652 if (clip_star.state == SELECT_DONE) 2653 clip_copy_modeless_selection(TRUE); 2654 continue; 2655 #endif 2656 default: /* no valid response */ 2657 msg_moremsg(TRUE); 2658 continue; 2659 } 2660 2661 if (toscroll != 0) 2662 { 2663 if (toscroll < 0) 2664 { 2665 /* go to start of last line */ 2666 if (mp_last == NULL) 2667 mp = msg_sb_start(last_msgchunk); 2668 else if (mp_last->sb_prev != NULL) 2669 mp = msg_sb_start(mp_last->sb_prev); 2670 else 2671 mp = NULL; 2672 2673 /* go to start of line at top of the screen */ 2674 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2675 ++i) 2676 mp = msg_sb_start(mp->sb_prev); 2677 2678 if (mp != NULL && mp->sb_prev != NULL) 2679 { 2680 /* Find line to be displayed at top. */ 2681 for (i = 0; i > toscroll; --i) 2682 { 2683 if (mp == NULL || mp->sb_prev == NULL) 2684 break; 2685 mp = msg_sb_start(mp->sb_prev); 2686 if (mp_last == NULL) 2687 mp_last = msg_sb_start(last_msgchunk); 2688 else 2689 mp_last = msg_sb_start(mp_last->sb_prev); 2690 } 2691 2692 if (toscroll == -1 && screen_ins_lines(0, 0, 1, 2693 (int)Rows, NULL) == OK) 2694 { 2695 /* display line at top */ 2696 (void)disp_sb_line(0, mp); 2697 } 2698 else 2699 { 2700 /* redisplay all lines */ 2701 screenclear(); 2702 for (i = 0; mp != NULL && i < Rows - 1; ++i) 2703 { 2704 mp = disp_sb_line(i, mp); 2705 ++msg_scrolled; 2706 } 2707 } 2708 toscroll = 0; 2709 } 2710 } 2711 else 2712 { 2713 /* First display any text that we scrolled back. */ 2714 while (toscroll > 0 && mp_last != NULL) 2715 { 2716 /* scroll up, display line at bottom */ 2717 msg_scroll_up(); 2718 inc_msg_scrolled(); 2719 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2720 (int)Columns, ' ', ' ', 0); 2721 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2722 --toscroll; 2723 } 2724 } 2725 2726 if (toscroll <= 0) 2727 { 2728 /* displayed the requested text, more prompt again */ 2729 screen_fill((int)Rows - 1, (int)Rows, 0, 2730 (int)Columns, ' ', ' ', 0); 2731 msg_moremsg(FALSE); 2732 continue; 2733 } 2734 2735 /* display more text, return to caller */ 2736 lines_left = toscroll; 2737 } 2738 2739 break; 2740 } 2741 2742 /* clear the --more-- message */ 2743 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2744 State = oldState; 2745 #ifdef FEAT_MOUSE 2746 setmouse(); 2747 #endif 2748 if (quit_more) 2749 { 2750 msg_row = Rows - 1; 2751 msg_col = 0; 2752 } 2753 #ifdef FEAT_RIGHTLEFT 2754 else if (cmdmsg_rl) 2755 msg_col = Columns - 1; 2756 #endif 2757 2758 entered = FALSE; 2759 #ifdef FEAT_CON_DIALOG 2760 return retval; 2761 #else 2762 return FALSE; 2763 #endif 2764 } 2765 2766 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 2767 2768 #ifdef mch_errmsg 2769 # undef mch_errmsg 2770 #endif 2771 #ifdef mch_msg 2772 # undef mch_msg 2773 #endif 2774 2775 /* 2776 * Give an error message. To be used when the screen hasn't been initialized 2777 * yet. When stderr can't be used, collect error messages until the GUI has 2778 * started and they can be displayed in a message box. 2779 */ 2780 void 2781 mch_errmsg(char *str) 2782 { 2783 int len; 2784 2785 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2786 /* On Unix use stderr if it's a tty. 2787 * When not going to start the GUI also use stderr. 2788 * On Mac, when started from Finder, stderr is the console. */ 2789 if ( 2790 # ifdef UNIX 2791 # ifdef MACOS_X_UNIX 2792 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2793 # else 2794 isatty(2) 2795 # endif 2796 # ifdef FEAT_GUI 2797 || 2798 # endif 2799 # endif 2800 # ifdef FEAT_GUI 2801 !(gui.in_use || gui.starting) 2802 # endif 2803 ) 2804 { 2805 fprintf(stderr, "%s", str); 2806 return; 2807 } 2808 #endif 2809 2810 /* avoid a delay for a message that isn't there */ 2811 emsg_on_display = FALSE; 2812 2813 len = (int)STRLEN(str) + 1; 2814 if (error_ga.ga_growsize == 0) 2815 { 2816 error_ga.ga_growsize = 80; 2817 error_ga.ga_itemsize = 1; 2818 } 2819 if (ga_grow(&error_ga, len) == OK) 2820 { 2821 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 2822 (char_u *)str, len); 2823 #ifdef UNIX 2824 /* remove CR characters, they are displayed */ 2825 { 2826 char_u *p; 2827 2828 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 2829 for (;;) 2830 { 2831 p = vim_strchr(p, '\r'); 2832 if (p == NULL) 2833 break; 2834 *p = ' '; 2835 } 2836 } 2837 #endif 2838 --len; /* don't count the NUL at the end */ 2839 error_ga.ga_len += len; 2840 } 2841 } 2842 2843 /* 2844 * Give a message. To be used when the screen hasn't been initialized yet. 2845 * When there is no tty, collect messages until the GUI has started and they 2846 * can be displayed in a message box. 2847 */ 2848 void 2849 mch_msg(char *str) 2850 { 2851 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2852 /* On Unix use stdout if we have a tty. This allows "vim -h | more" and 2853 * uses mch_errmsg() when started from the desktop. 2854 * When not going to start the GUI also use stdout. 2855 * On Mac, when started from Finder, stderr is the console. */ 2856 if ( 2857 # ifdef UNIX 2858 # ifdef MACOS_X_UNIX 2859 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2860 # else 2861 isatty(2) 2862 # endif 2863 # ifdef FEAT_GUI 2864 || 2865 # endif 2866 # endif 2867 # ifdef FEAT_GUI 2868 !(gui.in_use || gui.starting) 2869 # endif 2870 ) 2871 { 2872 printf("%s", str); 2873 return; 2874 } 2875 # endif 2876 mch_errmsg(str); 2877 } 2878 #endif /* USE_MCH_ERRMSG */ 2879 2880 /* 2881 * Put a character on the screen at the current message position and advance 2882 * to the next position. Only for printable ASCII! 2883 */ 2884 static void 2885 msg_screen_putchar(int c, int attr) 2886 { 2887 msg_didout = TRUE; /* remember that line is not empty */ 2888 screen_putchar(c, msg_row, msg_col, attr); 2889 #ifdef FEAT_RIGHTLEFT 2890 if (cmdmsg_rl) 2891 { 2892 if (--msg_col == 0) 2893 { 2894 msg_col = Columns; 2895 ++msg_row; 2896 } 2897 } 2898 else 2899 #endif 2900 { 2901 if (++msg_col >= Columns) 2902 { 2903 msg_col = 0; 2904 ++msg_row; 2905 } 2906 } 2907 } 2908 2909 void 2910 msg_moremsg(int full) 2911 { 2912 int attr; 2913 char_u *s = (char_u *)_("-- More --"); 2914 2915 attr = hl_attr(HLF_M); 2916 screen_puts(s, (int)Rows - 1, 0, attr); 2917 if (full) 2918 screen_puts((char_u *) 2919 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 2920 (int)Rows - 1, vim_strsize(s), attr); 2921 } 2922 2923 /* 2924 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 2925 * exmode_active. 2926 */ 2927 void 2928 repeat_message(void) 2929 { 2930 if (State == ASKMORE) 2931 { 2932 msg_moremsg(TRUE); /* display --more-- message again */ 2933 msg_row = Rows - 1; 2934 } 2935 #ifdef FEAT_CON_DIALOG 2936 else if (State == CONFIRM) 2937 { 2938 display_confirm_msg(); /* display ":confirm" message again */ 2939 msg_row = Rows - 1; 2940 } 2941 #endif 2942 else if (State == EXTERNCMD) 2943 { 2944 windgoto(msg_row, msg_col); /* put cursor back */ 2945 } 2946 else if (State == HITRETURN || State == SETWSIZE) 2947 { 2948 if (msg_row == Rows - 1) 2949 { 2950 /* Avoid drawing the "hit-enter" prompt below the previous one, 2951 * overwrite it. Esp. useful when regaining focus and a 2952 * FocusGained autocmd exists but didn't draw anything. */ 2953 msg_didout = FALSE; 2954 msg_col = 0; 2955 msg_clr_eos(); 2956 } 2957 hit_return_msg(); 2958 msg_row = Rows - 1; 2959 } 2960 } 2961 2962 /* 2963 * msg_check_screen - check if the screen is initialized. 2964 * Also check msg_row and msg_col, if they are too big it may cause a crash. 2965 * While starting the GUI the terminal codes will be set for the GUI, but the 2966 * output goes to the terminal. Don't use the terminal codes then. 2967 */ 2968 static int 2969 msg_check_screen(void) 2970 { 2971 if (!full_screen || !screen_valid(FALSE)) 2972 return FALSE; 2973 2974 if (msg_row >= Rows) 2975 msg_row = Rows - 1; 2976 if (msg_col >= Columns) 2977 msg_col = Columns - 1; 2978 return TRUE; 2979 } 2980 2981 /* 2982 * Clear from current message position to end of screen. 2983 * Skip this when ":silent" was used, no need to clear for redirection. 2984 */ 2985 void 2986 msg_clr_eos(void) 2987 { 2988 if (msg_silent == 0) 2989 msg_clr_eos_force(); 2990 } 2991 2992 /* 2993 * Clear from current message position to end of screen. 2994 * Note: msg_col is not updated, so we remember the end of the message 2995 * for msg_check(). 2996 */ 2997 void 2998 msg_clr_eos_force(void) 2999 { 3000 if (msg_use_printf()) 3001 { 3002 if (full_screen) /* only when termcap codes are valid */ 3003 { 3004 if (*T_CD) 3005 out_str(T_CD); /* clear to end of display */ 3006 else if (*T_CE) 3007 out_str(T_CE); /* clear to end of line */ 3008 } 3009 } 3010 else 3011 { 3012 #ifdef FEAT_RIGHTLEFT 3013 if (cmdmsg_rl) 3014 { 3015 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 3016 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3017 } 3018 else 3019 #endif 3020 { 3021 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 3022 ' ', ' ', 0); 3023 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3024 } 3025 } 3026 } 3027 3028 /* 3029 * Clear the command line. 3030 */ 3031 void 3032 msg_clr_cmdline(void) 3033 { 3034 msg_row = cmdline_row; 3035 msg_col = 0; 3036 msg_clr_eos_force(); 3037 } 3038 3039 /* 3040 * end putting a message on the screen 3041 * call wait_return if the message does not fit in the available space 3042 * return TRUE if wait_return not called. 3043 */ 3044 int 3045 msg_end(void) 3046 { 3047 /* 3048 * If the string is larger than the window, 3049 * or the ruler option is set and we run into it, 3050 * we have to redraw the window. 3051 * Do not do this if we are abandoning the file or editing the command line. 3052 */ 3053 if (!exiting && need_wait_return && !(State & CMDLINE)) 3054 { 3055 wait_return(FALSE); 3056 return FALSE; 3057 } 3058 out_flush(); 3059 return TRUE; 3060 } 3061 3062 /* 3063 * If the written message runs into the shown command or ruler, we have to 3064 * wait for hit-return and redraw the window later. 3065 */ 3066 void 3067 msg_check(void) 3068 { 3069 if (msg_row == Rows - 1 && msg_col >= sc_col) 3070 { 3071 need_wait_return = TRUE; 3072 redraw_cmdline = TRUE; 3073 } 3074 } 3075 3076 /* 3077 * May write a string to the redirection file. 3078 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3079 */ 3080 static void 3081 redir_write(char_u *str, int maxlen) 3082 { 3083 char_u *s = str; 3084 static int cur_col = 0; 3085 3086 /* Don't do anything for displaying prompts and the like. */ 3087 if (redir_off) 3088 return; 3089 3090 /* If 'verbosefile' is set prepare for writing in that file. */ 3091 if (*p_vfile != NUL && verbose_fd == NULL) 3092 verbose_open(); 3093 3094 if (redirecting()) 3095 { 3096 /* If the string doesn't start with CR or NL, go to msg_col */ 3097 if (*s != '\n' && *s != '\r') 3098 { 3099 while (cur_col < msg_col) 3100 { 3101 #ifdef FEAT_EVAL 3102 if (redir_execute) 3103 execute_redir_str((char_u *)" ", -1); 3104 else if (redir_reg) 3105 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 3106 else if (redir_vname) 3107 var_redir_str((char_u *)" ", -1); 3108 else 3109 #endif 3110 if (redir_fd != NULL) 3111 fputs(" ", redir_fd); 3112 if (verbose_fd != NULL) 3113 fputs(" ", verbose_fd); 3114 ++cur_col; 3115 } 3116 } 3117 3118 #ifdef FEAT_EVAL 3119 if (redir_execute) 3120 execute_redir_str(s, maxlen); 3121 else if (redir_reg) 3122 write_reg_contents(redir_reg, s, maxlen, TRUE); 3123 else if (redir_vname) 3124 var_redir_str(s, maxlen); 3125 #endif 3126 3127 /* Write and adjust the current column. */ 3128 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3129 { 3130 #ifdef FEAT_EVAL 3131 if (!redir_reg && !redir_vname && !redir_execute) 3132 #endif 3133 if (redir_fd != NULL) 3134 putc(*s, redir_fd); 3135 if (verbose_fd != NULL) 3136 putc(*s, verbose_fd); 3137 if (*s == '\r' || *s == '\n') 3138 cur_col = 0; 3139 else if (*s == '\t') 3140 cur_col += (8 - cur_col % 8); 3141 else 3142 ++cur_col; 3143 ++s; 3144 } 3145 3146 if (msg_silent != 0) /* should update msg_col */ 3147 msg_col = cur_col; 3148 } 3149 } 3150 3151 int 3152 redirecting(void) 3153 { 3154 return redir_fd != NULL || *p_vfile != NUL 3155 #ifdef FEAT_EVAL 3156 || redir_reg || redir_vname || redir_execute 3157 #endif 3158 ; 3159 } 3160 3161 /* 3162 * Before giving verbose message. 3163 * Must always be called paired with verbose_leave()! 3164 */ 3165 void 3166 verbose_enter(void) 3167 { 3168 if (*p_vfile != NUL) 3169 ++msg_silent; 3170 } 3171 3172 /* 3173 * After giving verbose message. 3174 * Must always be called paired with verbose_enter()! 3175 */ 3176 void 3177 verbose_leave(void) 3178 { 3179 if (*p_vfile != NUL) 3180 if (--msg_silent < 0) 3181 msg_silent = 0; 3182 } 3183 3184 /* 3185 * Like verbose_enter() and set msg_scroll when displaying the message. 3186 */ 3187 void 3188 verbose_enter_scroll(void) 3189 { 3190 if (*p_vfile != NUL) 3191 ++msg_silent; 3192 else 3193 /* always scroll up, don't overwrite */ 3194 msg_scroll = TRUE; 3195 } 3196 3197 /* 3198 * Like verbose_leave() and set cmdline_row when displaying the message. 3199 */ 3200 void 3201 verbose_leave_scroll(void) 3202 { 3203 if (*p_vfile != NUL) 3204 { 3205 if (--msg_silent < 0) 3206 msg_silent = 0; 3207 } 3208 else 3209 cmdline_row = msg_row; 3210 } 3211 3212 /* 3213 * Called when 'verbosefile' is set: stop writing to the file. 3214 */ 3215 void 3216 verbose_stop(void) 3217 { 3218 if (verbose_fd != NULL) 3219 { 3220 fclose(verbose_fd); 3221 verbose_fd = NULL; 3222 } 3223 verbose_did_open = FALSE; 3224 } 3225 3226 /* 3227 * Open the file 'verbosefile'. 3228 * Return FAIL or OK. 3229 */ 3230 int 3231 verbose_open(void) 3232 { 3233 if (verbose_fd == NULL && !verbose_did_open) 3234 { 3235 /* Only give the error message once. */ 3236 verbose_did_open = TRUE; 3237 3238 verbose_fd = mch_fopen((char *)p_vfile, "a"); 3239 if (verbose_fd == NULL) 3240 { 3241 EMSG2(_(e_notopen), p_vfile); 3242 return FAIL; 3243 } 3244 } 3245 return OK; 3246 } 3247 3248 /* 3249 * Give a warning message (for searching). 3250 * Use 'w' highlighting and may repeat the message after redrawing 3251 */ 3252 void 3253 give_warning(char_u *message, int hl) 3254 { 3255 /* Don't do this for ":silent". */ 3256 if (msg_silent != 0) 3257 return; 3258 3259 /* Don't want a hit-enter prompt here. */ 3260 ++no_wait_return; 3261 3262 #ifdef FEAT_EVAL 3263 set_vim_var_string(VV_WARNINGMSG, message, -1); 3264 #endif 3265 vim_free(keep_msg); 3266 keep_msg = NULL; 3267 if (hl) 3268 keep_msg_attr = hl_attr(HLF_W); 3269 else 3270 keep_msg_attr = 0; 3271 if (msg_attr(message, keep_msg_attr) && msg_scrolled == 0) 3272 set_keep_msg(message, keep_msg_attr); 3273 msg_didout = FALSE; /* overwrite this message */ 3274 msg_nowait = TRUE; /* don't wait for this message */ 3275 msg_col = 0; 3276 3277 --no_wait_return; 3278 } 3279 3280 /* 3281 * Advance msg cursor to column "col". 3282 */ 3283 void 3284 msg_advance(int col) 3285 { 3286 if (msg_silent != 0) /* nothing to advance to */ 3287 { 3288 msg_col = col; /* for redirection, may fill it up later */ 3289 return; 3290 } 3291 if (col >= Columns) /* not enough room */ 3292 col = Columns - 1; 3293 #ifdef FEAT_RIGHTLEFT 3294 if (cmdmsg_rl) 3295 while (msg_col > Columns - col) 3296 msg_putchar(' '); 3297 else 3298 #endif 3299 while (msg_col < col) 3300 msg_putchar(' '); 3301 } 3302 3303 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3304 /* 3305 * Used for "confirm()" function, and the :confirm command prefix. 3306 * Versions which haven't got flexible dialogs yet, and console 3307 * versions, get this generic handler which uses the command line. 3308 * 3309 * type = one of: 3310 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3311 * title = title string (can be NULL for default) 3312 * (neither used in console dialogs at the moment) 3313 * 3314 * Format of the "buttons" string: 3315 * "Button1Name\nButton2Name\nButton3Name" 3316 * The first button should normally be the default/accept 3317 * The second button should be the 'Cancel' button 3318 * Other buttons- use your imagination! 3319 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3320 * different letter. 3321 */ 3322 int 3323 do_dialog( 3324 int type UNUSED, 3325 char_u *title UNUSED, 3326 char_u *message, 3327 char_u *buttons, 3328 int dfltbutton, 3329 char_u *textfield UNUSED, /* IObuff for inputdialog(), NULL 3330 otherwise */ 3331 int ex_cmd) /* when TRUE pressing : accepts default and starts 3332 Ex command */ 3333 { 3334 int oldState; 3335 int retval = 0; 3336 char_u *hotkeys; 3337 int c; 3338 int i; 3339 3340 #ifndef NO_CONSOLE 3341 /* Don't output anything in silent mode ("ex -s") */ 3342 if (silent_mode) 3343 return dfltbutton; /* return default option */ 3344 #endif 3345 3346 #ifdef FEAT_GUI_DIALOG 3347 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3348 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3349 { 3350 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3351 textfield, ex_cmd); 3352 /* avoid a hit-enter prompt without clearing the cmdline */ 3353 need_wait_return = FALSE; 3354 emsg_on_display = FALSE; 3355 cmdline_row = msg_row; 3356 3357 /* Flush output to avoid that further messages and redrawing is done 3358 * in the wrong order. */ 3359 out_flush(); 3360 gui_mch_update(); 3361 3362 return c; 3363 } 3364 #endif 3365 3366 oldState = State; 3367 State = CONFIRM; 3368 #ifdef FEAT_MOUSE 3369 setmouse(); 3370 #endif 3371 3372 /* 3373 * Since we wait for a keypress, don't make the 3374 * user press RETURN as well afterwards. 3375 */ 3376 ++no_wait_return; 3377 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3378 3379 if (hotkeys != NULL) 3380 { 3381 for (;;) 3382 { 3383 /* Get a typed character directly from the user. */ 3384 c = get_keystroke(); 3385 switch (c) 3386 { 3387 case CAR: /* User accepts default option */ 3388 case NL: 3389 retval = dfltbutton; 3390 break; 3391 case Ctrl_C: /* User aborts/cancels */ 3392 case ESC: 3393 retval = 0; 3394 break; 3395 default: /* Could be a hotkey? */ 3396 if (c < 0) /* special keys are ignored here */ 3397 continue; 3398 if (c == ':' && ex_cmd) 3399 { 3400 retval = dfltbutton; 3401 ins_char_typebuf(':'); 3402 break; 3403 } 3404 3405 /* Make the character lowercase, as chars in "hotkeys" are. */ 3406 c = MB_TOLOWER(c); 3407 retval = 1; 3408 for (i = 0; hotkeys[i]; ++i) 3409 { 3410 #ifdef FEAT_MBYTE 3411 if (has_mbyte) 3412 { 3413 if ((*mb_ptr2char)(hotkeys + i) == c) 3414 break; 3415 i += (*mb_ptr2len)(hotkeys + i) - 1; 3416 } 3417 else 3418 #endif 3419 if (hotkeys[i] == c) 3420 break; 3421 ++retval; 3422 } 3423 if (hotkeys[i]) 3424 break; 3425 /* No hotkey match, so keep waiting */ 3426 continue; 3427 } 3428 break; 3429 } 3430 3431 vim_free(hotkeys); 3432 } 3433 3434 State = oldState; 3435 #ifdef FEAT_MOUSE 3436 setmouse(); 3437 #endif 3438 --no_wait_return; 3439 msg_end_prompt(); 3440 3441 return retval; 3442 } 3443 3444 static int copy_char(char_u *from, char_u *to, int lowercase); 3445 3446 /* 3447 * Copy one character from "*from" to "*to", taking care of multi-byte 3448 * characters. Return the length of the character in bytes. 3449 */ 3450 static int 3451 copy_char( 3452 char_u *from, 3453 char_u *to, 3454 int lowercase) /* make character lower case */ 3455 { 3456 #ifdef FEAT_MBYTE 3457 int len; 3458 int c; 3459 3460 if (has_mbyte) 3461 { 3462 if (lowercase) 3463 { 3464 c = MB_TOLOWER((*mb_ptr2char)(from)); 3465 return (*mb_char2bytes)(c, to); 3466 } 3467 else 3468 { 3469 len = (*mb_ptr2len)(from); 3470 mch_memmove(to, from, (size_t)len); 3471 return len; 3472 } 3473 } 3474 else 3475 #endif 3476 { 3477 if (lowercase) 3478 *to = (char_u)TOLOWER_LOC(*from); 3479 else 3480 *to = *from; 3481 return 1; 3482 } 3483 } 3484 3485 /* 3486 * Format the dialog string, and display it at the bottom of 3487 * the screen. Return a string of hotkey chars (if defined) for 3488 * each 'button'. If a button has no hotkey defined, the first character of 3489 * the button is used. 3490 * The hotkeys can be multi-byte characters, but without combining chars. 3491 * 3492 * Returns an allocated string with hotkeys, or NULL for error. 3493 */ 3494 static char_u * 3495 msg_show_console_dialog( 3496 char_u *message, 3497 char_u *buttons, 3498 int dfltbutton) 3499 { 3500 int len = 0; 3501 #ifdef FEAT_MBYTE 3502 # define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3503 #else 3504 # define HOTK_LEN 1 3505 #endif 3506 int lenhotkey = HOTK_LEN; /* count first button */ 3507 char_u *hotk = NULL; 3508 char_u *msgp = NULL; 3509 char_u *hotkp = NULL; 3510 char_u *r; 3511 int copy; 3512 #define HAS_HOTKEY_LEN 30 3513 char_u has_hotkey[HAS_HOTKEY_LEN]; 3514 int first_hotkey = FALSE; /* first char of button is hotkey */ 3515 int idx; 3516 3517 has_hotkey[0] = FALSE; 3518 3519 /* 3520 * First loop: compute the size of memory to allocate. 3521 * Second loop: copy to the allocated memory. 3522 */ 3523 for (copy = 0; copy <= 1; ++copy) 3524 { 3525 r = buttons; 3526 idx = 0; 3527 while (*r) 3528 { 3529 if (*r == DLG_BUTTON_SEP) 3530 { 3531 if (copy) 3532 { 3533 *msgp++ = ','; 3534 *msgp++ = ' '; /* '\n' -> ', ' */ 3535 3536 /* advance to next hotkey and set default hotkey */ 3537 #ifdef FEAT_MBYTE 3538 if (has_mbyte) 3539 hotkp += STRLEN(hotkp); 3540 else 3541 #endif 3542 ++hotkp; 3543 hotkp[copy_char(r + 1, hotkp, TRUE)] = NUL; 3544 if (dfltbutton) 3545 --dfltbutton; 3546 3547 /* If no hotkey is specified first char is used. */ 3548 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3549 first_hotkey = TRUE; 3550 } 3551 else 3552 { 3553 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3554 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3555 if (idx < HAS_HOTKEY_LEN - 1) 3556 has_hotkey[++idx] = FALSE; 3557 } 3558 } 3559 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3560 { 3561 if (*r == DLG_HOTKEY_CHAR) 3562 ++r; 3563 first_hotkey = FALSE; 3564 if (copy) 3565 { 3566 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3567 *msgp++ = *r; 3568 else 3569 { 3570 /* '&a' -> '[a]' */ 3571 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3572 msgp += copy_char(r, msgp, FALSE); 3573 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3574 3575 /* redefine hotkey */ 3576 hotkp[copy_char(r, hotkp, TRUE)] = NUL; 3577 } 3578 } 3579 else 3580 { 3581 ++len; /* '&a' -> '[a]' */ 3582 if (idx < HAS_HOTKEY_LEN - 1) 3583 has_hotkey[idx] = TRUE; 3584 } 3585 } 3586 else 3587 { 3588 /* everything else copy literally */ 3589 if (copy) 3590 msgp += copy_char(r, msgp, FALSE); 3591 } 3592 3593 /* advance to the next character */ 3594 mb_ptr_adv(r); 3595 } 3596 3597 if (copy) 3598 { 3599 *msgp++ = ':'; 3600 *msgp++ = ' '; 3601 *msgp = NUL; 3602 } 3603 else 3604 { 3605 len += (int)(STRLEN(message) 3606 + 2 /* for the NL's */ 3607 + STRLEN(buttons) 3608 + 3); /* for the ": " and NUL */ 3609 lenhotkey++; /* for the NUL */ 3610 3611 /* If no hotkey is specified first char is used. */ 3612 if (!has_hotkey[0]) 3613 { 3614 first_hotkey = TRUE; 3615 len += 2; /* "x" -> "[x]" */ 3616 } 3617 3618 /* 3619 * Now allocate and load the strings 3620 */ 3621 vim_free(confirm_msg); 3622 confirm_msg = alloc(len); 3623 if (confirm_msg == NULL) 3624 return NULL; 3625 *confirm_msg = NUL; 3626 hotk = alloc(lenhotkey); 3627 if (hotk == NULL) 3628 return NULL; 3629 3630 *confirm_msg = '\n'; 3631 STRCPY(confirm_msg + 1, message); 3632 3633 msgp = confirm_msg + 1 + STRLEN(message); 3634 hotkp = hotk; 3635 3636 /* Define first default hotkey. Keep the hotkey string NUL 3637 * terminated to avoid reading past the end. */ 3638 hotkp[copy_char(buttons, hotkp, TRUE)] = NUL; 3639 3640 /* Remember where the choices start, displaying starts here when 3641 * "hotkp" typed at the more prompt. */ 3642 confirm_msg_tail = msgp; 3643 *msgp++ = '\n'; 3644 } 3645 } 3646 3647 display_confirm_msg(); 3648 return hotk; 3649 } 3650 3651 /* 3652 * Display the ":confirm" message. Also called when screen resized. 3653 */ 3654 void 3655 display_confirm_msg(void) 3656 { 3657 /* avoid that 'q' at the more prompt truncates the message here */ 3658 ++confirm_msg_used; 3659 if (confirm_msg != NULL) 3660 msg_puts_attr(confirm_msg, hl_attr(HLF_M)); 3661 --confirm_msg_used; 3662 } 3663 3664 #endif /* FEAT_CON_DIALOG */ 3665 3666 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3667 3668 int 3669 vim_dialog_yesno( 3670 int type, 3671 char_u *title, 3672 char_u *message, 3673 int dflt) 3674 { 3675 if (do_dialog(type, 3676 title == NULL ? (char_u *)_("Question") : title, 3677 message, 3678 (char_u *)_("&Yes\n&No"), dflt, NULL, FALSE) == 1) 3679 return VIM_YES; 3680 return VIM_NO; 3681 } 3682 3683 int 3684 vim_dialog_yesnocancel( 3685 int type, 3686 char_u *title, 3687 char_u *message, 3688 int dflt) 3689 { 3690 switch (do_dialog(type, 3691 title == NULL ? (char_u *)_("Question") : title, 3692 message, 3693 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL, FALSE)) 3694 { 3695 case 1: return VIM_YES; 3696 case 2: return VIM_NO; 3697 } 3698 return VIM_CANCEL; 3699 } 3700 3701 int 3702 vim_dialog_yesnoallcancel( 3703 int type, 3704 char_u *title, 3705 char_u *message, 3706 int dflt) 3707 { 3708 switch (do_dialog(type, 3709 title == NULL ? (char_u *)"Question" : title, 3710 message, 3711 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3712 dflt, NULL, FALSE)) 3713 { 3714 case 1: return VIM_YES; 3715 case 2: return VIM_NO; 3716 case 3: return VIM_ALL; 3717 case 4: return VIM_DISCARDALL; 3718 } 3719 return VIM_CANCEL; 3720 } 3721 3722 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3723 3724 #if defined(FEAT_BROWSE) || defined(PROTO) 3725 /* 3726 * Generic browse function. Calls gui_mch_browse() when possible. 3727 * Later this may pop-up a non-GUI file selector (external command?). 3728 */ 3729 char_u * 3730 do_browse( 3731 int flags, /* BROWSE_SAVE and BROWSE_DIR */ 3732 char_u *title, /* title for the window */ 3733 char_u *dflt, /* default file name (may include directory) */ 3734 char_u *ext, /* extension added */ 3735 char_u *initdir, /* initial directory, NULL for current dir or 3736 when using path from "dflt" */ 3737 char_u *filter, /* file name filter */ 3738 buf_T *buf) /* buffer to read/write for */ 3739 { 3740 char_u *fname; 3741 static char_u *last_dir = NULL; /* last used directory */ 3742 char_u *tofree = NULL; 3743 int save_browse = cmdmod.browse; 3744 3745 /* Must turn off browse to avoid that autocommands will get the 3746 * flag too! */ 3747 cmdmod.browse = FALSE; 3748 3749 if (title == NULL || *title == NUL) 3750 { 3751 if (flags & BROWSE_DIR) 3752 title = (char_u *)_("Select Directory dialog"); 3753 else if (flags & BROWSE_SAVE) 3754 title = (char_u *)_("Save File dialog"); 3755 else 3756 title = (char_u *)_("Open File dialog"); 3757 } 3758 3759 /* When no directory specified, use default file name, default dir, buffer 3760 * dir, last dir or current dir */ 3761 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 3762 { 3763 if (mch_isdir(dflt)) /* default file name is a directory */ 3764 { 3765 initdir = dflt; 3766 dflt = NULL; 3767 } 3768 else if (gettail(dflt) != dflt) /* default file name includes a path */ 3769 { 3770 tofree = vim_strsave(dflt); 3771 if (tofree != NULL) 3772 { 3773 initdir = tofree; 3774 *gettail(initdir) = NUL; 3775 dflt = gettail(dflt); 3776 } 3777 } 3778 } 3779 3780 if (initdir == NULL || *initdir == NUL) 3781 { 3782 /* When 'browsedir' is a directory, use it */ 3783 if (STRCMP(p_bsdir, "last") != 0 3784 && STRCMP(p_bsdir, "buffer") != 0 3785 && STRCMP(p_bsdir, "current") != 0 3786 && mch_isdir(p_bsdir)) 3787 initdir = p_bsdir; 3788 /* When saving or 'browsedir' is "buffer", use buffer fname */ 3789 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 3790 && buf != NULL && buf->b_ffname != NULL) 3791 { 3792 if (dflt == NULL || *dflt == NUL) 3793 dflt = gettail(curbuf->b_ffname); 3794 tofree = vim_strsave(curbuf->b_ffname); 3795 if (tofree != NULL) 3796 { 3797 initdir = tofree; 3798 *gettail(initdir) = NUL; 3799 } 3800 } 3801 /* When 'browsedir' is "last", use dir from last browse */ 3802 else if (*p_bsdir == 'l') 3803 initdir = last_dir; 3804 /* When 'browsedir is "current", use current directory. This is the 3805 * default already, leave initdir empty. */ 3806 } 3807 3808 # ifdef FEAT_GUI 3809 if (gui.in_use) /* when this changes, also adjust f_has()! */ 3810 { 3811 if (filter == NULL 3812 # ifdef FEAT_EVAL 3813 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 3814 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 3815 # endif 3816 ) 3817 filter = BROWSE_FILTER_DEFAULT; 3818 if (flags & BROWSE_DIR) 3819 { 3820 # if defined(FEAT_GUI_GTK) || defined(WIN3264) 3821 /* For systems that have a directory dialog. */ 3822 fname = gui_mch_browsedir(title, initdir); 3823 # else 3824 /* Generic solution for selecting a directory: select a file and 3825 * remove the file name. */ 3826 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 3827 # endif 3828 # if !defined(FEAT_GUI_GTK) 3829 /* Win32 adds a dummy file name, others return an arbitrary file 3830 * name. GTK+ 2 returns only the directory, */ 3831 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 3832 { 3833 /* Remove the file name. */ 3834 char_u *tail = gettail_sep(fname); 3835 3836 if (tail == fname) 3837 *tail++ = '.'; /* use current dir */ 3838 *tail = NUL; 3839 } 3840 # endif 3841 } 3842 else 3843 fname = gui_mch_browse(flags & BROWSE_SAVE, 3844 title, dflt, ext, initdir, filter); 3845 3846 /* We hang around in the dialog for a while, the user might do some 3847 * things to our files. The Win32 dialog allows deleting or renaming 3848 * a file, check timestamps. */ 3849 need_check_timestamps = TRUE; 3850 did_check_timestamps = FALSE; 3851 } 3852 else 3853 # endif 3854 { 3855 /* TODO: non-GUI file selector here */ 3856 EMSG(_("E338: Sorry, no file browser in console mode")); 3857 fname = NULL; 3858 } 3859 3860 /* keep the directory for next time */ 3861 if (fname != NULL) 3862 { 3863 vim_free(last_dir); 3864 last_dir = vim_strsave(fname); 3865 if (last_dir != NULL && !(flags & BROWSE_DIR)) 3866 { 3867 *gettail(last_dir) = NUL; 3868 if (*last_dir == NUL) 3869 { 3870 /* filename only returned, must be in current dir */ 3871 vim_free(last_dir); 3872 last_dir = alloc(MAXPATHL); 3873 if (last_dir != NULL) 3874 mch_dirname(last_dir, MAXPATHL); 3875 } 3876 } 3877 } 3878 3879 vim_free(tofree); 3880 cmdmod.browse = save_browse; 3881 3882 return fname; 3883 } 3884 #endif 3885 3886 #if defined(FEAT_EVAL) 3887 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 3888 3889 static varnumber_T tv_nr(typval_T *tvs, int *idxp); 3890 static char *tv_str(typval_T *tvs, int *idxp); 3891 # ifdef FEAT_FLOAT 3892 static double tv_float(typval_T *tvs, int *idxp); 3893 # endif 3894 3895 /* 3896 * Get number argument from "idxp" entry in "tvs". First entry is 1. 3897 */ 3898 static varnumber_T 3899 tv_nr(typval_T *tvs, int *idxp) 3900 { 3901 int idx = *idxp - 1; 3902 varnumber_T n = 0; 3903 int err = FALSE; 3904 3905 if (tvs[idx].v_type == VAR_UNKNOWN) 3906 EMSG(_(e_printf)); 3907 else 3908 { 3909 ++*idxp; 3910 n = get_tv_number_chk(&tvs[idx], &err); 3911 if (err) 3912 n = 0; 3913 } 3914 return n; 3915 } 3916 3917 /* 3918 * Get string argument from "idxp" entry in "tvs". First entry is 1. 3919 * Returns NULL for an error. 3920 */ 3921 static char * 3922 tv_str(typval_T *tvs, int *idxp) 3923 { 3924 int idx = *idxp - 1; 3925 char *s = NULL; 3926 3927 if (tvs[idx].v_type == VAR_UNKNOWN) 3928 EMSG(_(e_printf)); 3929 else 3930 { 3931 ++*idxp; 3932 s = (char *)get_tv_string_chk(&tvs[idx]); 3933 } 3934 return s; 3935 } 3936 3937 # ifdef FEAT_FLOAT 3938 /* 3939 * Get float argument from "idxp" entry in "tvs". First entry is 1. 3940 */ 3941 static double 3942 tv_float(typval_T *tvs, int *idxp) 3943 { 3944 int idx = *idxp - 1; 3945 double f = 0; 3946 3947 if (tvs[idx].v_type == VAR_UNKNOWN) 3948 EMSG(_(e_printf)); 3949 else 3950 { 3951 ++*idxp; 3952 if (tvs[idx].v_type == VAR_FLOAT) 3953 f = tvs[idx].vval.v_float; 3954 else if (tvs[idx].v_type == VAR_NUMBER) 3955 f = (double)tvs[idx].vval.v_number; 3956 else 3957 EMSG(_("E807: Expected Float argument for printf()")); 3958 } 3959 return f; 3960 } 3961 # endif 3962 #endif 3963 3964 /* 3965 * This code was included to provide a portable vsnprintf() and snprintf(). 3966 * Some systems may provide their own, but we always use this one for 3967 * consistency. 3968 * 3969 * This code is based on snprintf.c - a portable implementation of snprintf 3970 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 3971 * Included with permission. It was heavily modified to fit in Vim. 3972 * The original code, including useful comments, can be found here: 3973 * http://www.ijs.si/software/snprintf/ 3974 * 3975 * This snprintf() only supports the following conversion specifiers: 3976 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 3977 * with flags: '-', '+', ' ', '0' and '#'. 3978 * An asterisk is supported for field width as well as precision. 3979 * 3980 * Limited support for floating point was added: 'f', 'e', 'E', 'g', 'G'. 3981 * 3982 * Length modifiers 'h' (short int) and 'l' (long int) are supported. 3983 * 'll' (long long int) is not supported. 3984 * 3985 * The locale is not used, the string is used as a byte string. This is only 3986 * relevant for double-byte encodings where the second byte may be '%'. 3987 * 3988 * It is permitted for "str_m" to be zero, and it is permitted to specify NULL 3989 * pointer for resulting string argument if "str_m" is zero (as per ISO C99). 3990 * 3991 * The return value is the number of characters which would be generated 3992 * for the given input, excluding the trailing NUL. If this value 3993 * is greater or equal to "str_m", not all characters from the result 3994 * have been stored in str, output bytes beyond the ("str_m"-1) -th character 3995 * are discarded. If "str_m" is greater than zero it is guaranteed 3996 * the resulting string will be NUL-terminated. 3997 */ 3998 3999 /* 4000 * When va_list is not supported we only define vim_snprintf(). 4001 * 4002 * vim_vsnprintf() can be invoked with either "va_list" or a list of 4003 * "typval_T". When the latter is not used it must be NULL. 4004 */ 4005 4006 /* When generating prototypes all of this is skipped, cproto doesn't 4007 * understand this. */ 4008 #ifndef PROTO 4009 4010 /* Like vim_vsnprintf() but append to the string. */ 4011 int 4012 vim_snprintf_add(char *str, size_t str_m, char *fmt, ...) 4013 { 4014 va_list ap; 4015 int str_l; 4016 size_t len = STRLEN(str); 4017 size_t space; 4018 4019 if (str_m <= len) 4020 space = 0; 4021 else 4022 space = str_m - len; 4023 va_start(ap, fmt); 4024 str_l = vim_vsnprintf(str + len, space, fmt, ap, NULL); 4025 va_end(ap); 4026 return str_l; 4027 } 4028 4029 int 4030 vim_snprintf(char *str, size_t str_m, char *fmt, ...) 4031 { 4032 va_list ap; 4033 int str_l; 4034 4035 va_start(ap, fmt); 4036 str_l = vim_vsnprintf(str, str_m, fmt, ap, NULL); 4037 va_end(ap); 4038 return str_l; 4039 } 4040 4041 int 4042 vim_vsnprintf( 4043 char *str, 4044 size_t str_m, 4045 char *fmt, 4046 va_list ap, 4047 typval_T *tvs) 4048 { 4049 size_t str_l = 0; 4050 char *p = fmt; 4051 int arg_idx = 1; 4052 4053 if (p == NULL) 4054 p = ""; 4055 while (*p != NUL) 4056 { 4057 if (*p != '%') 4058 { 4059 char *q = strchr(p + 1, '%'); 4060 size_t n = (q == NULL) ? STRLEN(p) : (size_t)(q - p); 4061 4062 /* Copy up to the next '%' or NUL without any changes. */ 4063 if (str_l < str_m) 4064 { 4065 size_t avail = str_m - str_l; 4066 4067 mch_memmove(str + str_l, p, n > avail ? avail : n); 4068 } 4069 p += n; 4070 str_l += n; 4071 } 4072 else 4073 { 4074 size_t min_field_width = 0, precision = 0; 4075 int zero_padding = 0, precision_specified = 0, justify_left = 0; 4076 int alternate_form = 0, force_sign = 0; 4077 4078 /* If both the ' ' and '+' flags appear, the ' ' flag should be 4079 * ignored. */ 4080 int space_for_positive = 1; 4081 4082 /* allowed values: \0, h, l, L */ 4083 char length_modifier = '\0'; 4084 4085 /* temporary buffer for simple numeric->string conversion */ 4086 # ifdef FEAT_FLOAT 4087 # define TMP_LEN 350 /* On my system 1e308 is the biggest number possible. 4088 * That sounds reasonable to use as the maximum 4089 * printable. */ 4090 # else 4091 # define TMP_LEN 32 4092 # endif 4093 char tmp[TMP_LEN]; 4094 4095 /* string address in case of string argument */ 4096 char *str_arg; 4097 4098 /* natural field width of arg without padding and sign */ 4099 size_t str_arg_l; 4100 4101 /* unsigned char argument value - only defined for c conversion. 4102 * N.B. standard explicitly states the char argument for the c 4103 * conversion is unsigned */ 4104 unsigned char uchar_arg; 4105 4106 /* number of zeros to be inserted for numeric conversions as 4107 * required by the precision or minimal field width */ 4108 size_t number_of_zeros_to_pad = 0; 4109 4110 /* index into tmp where zero padding is to be inserted */ 4111 size_t zero_padding_insertion_ind = 0; 4112 4113 /* current conversion specifier character */ 4114 char fmt_spec = '\0'; 4115 4116 str_arg = NULL; 4117 p++; /* skip '%' */ 4118 4119 /* parse flags */ 4120 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 4121 || *p == '#' || *p == '\'') 4122 { 4123 switch (*p) 4124 { 4125 case '0': zero_padding = 1; break; 4126 case '-': justify_left = 1; break; 4127 case '+': force_sign = 1; space_for_positive = 0; break; 4128 case ' ': force_sign = 1; 4129 /* If both the ' ' and '+' flags appear, the ' ' 4130 * flag should be ignored */ 4131 break; 4132 case '#': alternate_form = 1; break; 4133 case '\'': break; 4134 } 4135 p++; 4136 } 4137 /* If the '0' and '-' flags both appear, the '0' flag should be 4138 * ignored. */ 4139 4140 /* parse field width */ 4141 if (*p == '*') 4142 { 4143 int j; 4144 4145 p++; 4146 j = 4147 # if defined(FEAT_EVAL) 4148 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4149 # endif 4150 va_arg(ap, int); 4151 if (j >= 0) 4152 min_field_width = j; 4153 else 4154 { 4155 min_field_width = -j; 4156 justify_left = 1; 4157 } 4158 } 4159 else if (VIM_ISDIGIT((int)(*p))) 4160 { 4161 /* size_t could be wider than unsigned int; make sure we treat 4162 * argument like common implementations do */ 4163 unsigned int uj = *p++ - '0'; 4164 4165 while (VIM_ISDIGIT((int)(*p))) 4166 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4167 min_field_width = uj; 4168 } 4169 4170 /* parse precision */ 4171 if (*p == '.') 4172 { 4173 p++; 4174 precision_specified = 1; 4175 if (*p == '*') 4176 { 4177 int j; 4178 4179 j = 4180 # if defined(FEAT_EVAL) 4181 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4182 # endif 4183 va_arg(ap, int); 4184 p++; 4185 if (j >= 0) 4186 precision = j; 4187 else 4188 { 4189 precision_specified = 0; 4190 precision = 0; 4191 } 4192 } 4193 else if (VIM_ISDIGIT((int)(*p))) 4194 { 4195 /* size_t could be wider than unsigned int; make sure we 4196 * treat argument like common implementations do */ 4197 unsigned int uj = *p++ - '0'; 4198 4199 while (VIM_ISDIGIT((int)(*p))) 4200 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4201 precision = uj; 4202 } 4203 } 4204 4205 /* parse 'h', 'l' and 'll' length modifiers */ 4206 if (*p == 'h' || *p == 'l') 4207 { 4208 length_modifier = *p; 4209 p++; 4210 if (length_modifier == 'l' && *p == 'l') 4211 { 4212 /* double l = long long */ 4213 # ifdef FEAT_NUM64 4214 length_modifier = 'L'; 4215 # else 4216 length_modifier = 'l'; /* treat it as a single 'l' */ 4217 # endif 4218 p++; 4219 } 4220 } 4221 fmt_spec = *p; 4222 4223 /* common synonyms: */ 4224 switch (fmt_spec) 4225 { 4226 case 'i': fmt_spec = 'd'; break; 4227 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4228 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4229 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4230 case 'F': fmt_spec = 'f'; break; 4231 default: break; 4232 } 4233 4234 # if defined(FEAT_EVAL) && defined(FEAT_NUM64) 4235 switch (fmt_spec) 4236 { 4237 case 'd': case 'u': case 'o': case 'x': case 'X': 4238 if (tvs != NULL && length_modifier == '\0') 4239 length_modifier = 'L'; 4240 } 4241 # endif 4242 4243 /* get parameter value, do initial processing */ 4244 switch (fmt_spec) 4245 { 4246 /* '%' and 'c' behave similar to 's' regarding flags and field 4247 * widths */ 4248 case '%': 4249 case 'c': 4250 case 's': 4251 case 'S': 4252 length_modifier = '\0'; 4253 str_arg_l = 1; 4254 switch (fmt_spec) 4255 { 4256 case '%': 4257 str_arg = p; 4258 break; 4259 4260 case 'c': 4261 { 4262 int j; 4263 4264 j = 4265 # if defined(FEAT_EVAL) 4266 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4267 # endif 4268 va_arg(ap, int); 4269 /* standard demands unsigned char */ 4270 uchar_arg = (unsigned char)j; 4271 str_arg = (char *)&uchar_arg; 4272 break; 4273 } 4274 4275 case 's': 4276 case 'S': 4277 str_arg = 4278 # if defined(FEAT_EVAL) 4279 tvs != NULL ? tv_str(tvs, &arg_idx) : 4280 # endif 4281 va_arg(ap, char *); 4282 if (str_arg == NULL) 4283 { 4284 str_arg = "[NULL]"; 4285 str_arg_l = 6; 4286 } 4287 /* make sure not to address string beyond the specified 4288 * precision !!! */ 4289 else if (!precision_specified) 4290 str_arg_l = strlen(str_arg); 4291 /* truncate string if necessary as requested by precision */ 4292 else if (precision == 0) 4293 str_arg_l = 0; 4294 else 4295 { 4296 /* Don't put the #if inside memchr(), it can be a 4297 * macro. */ 4298 # if VIM_SIZEOF_INT <= 2 4299 char *q = memchr(str_arg, '\0', precision); 4300 # else 4301 /* memchr on HP does not like n > 2^31 !!! */ 4302 char *q = memchr(str_arg, '\0', 4303 precision <= (size_t)0x7fffffffL ? precision 4304 : (size_t)0x7fffffffL); 4305 # endif 4306 str_arg_l = (q == NULL) ? precision 4307 : (size_t)(q - str_arg); 4308 } 4309 # ifdef FEAT_MBYTE 4310 if (fmt_spec == 'S') 4311 { 4312 if (min_field_width != 0) 4313 min_field_width += STRLEN(str_arg) 4314 - mb_string2cells((char_u *)str_arg, -1); 4315 if (precision) 4316 { 4317 char_u *p1 = (char_u *)str_arg; 4318 size_t i; 4319 4320 for (i = 0; i < precision && *p1; i++) 4321 p1 += mb_ptr2len(p1); 4322 4323 str_arg_l = precision = p1 - (char_u *)str_arg; 4324 } 4325 } 4326 # endif 4327 break; 4328 4329 default: 4330 break; 4331 } 4332 break; 4333 4334 case 'd': case 'u': case 'o': case 'x': case 'X': case 'p': 4335 { 4336 /* NOTE: the u, o, x, X and p conversion specifiers 4337 * imply the value is unsigned; d implies a signed 4338 * value */ 4339 4340 /* 0 if numeric argument is zero (or if pointer is 4341 * NULL for 'p'), +1 if greater than zero (or nonzero 4342 * for unsigned arguments), -1 if negative (unsigned 4343 * argument is never negative) */ 4344 int arg_sign = 0; 4345 4346 /* only defined for length modifier h, or for no 4347 * length modifiers */ 4348 int int_arg = 0; 4349 unsigned int uint_arg = 0; 4350 4351 /* only defined for length modifier l */ 4352 long int long_arg = 0; 4353 unsigned long int ulong_arg = 0; 4354 4355 # ifdef FEAT_NUM64 4356 /* only defined for length modifier ll */ 4357 varnumber_T llong_arg = 0; 4358 uvarnumber_T ullong_arg = 0; 4359 # endif 4360 4361 /* pointer argument value -only defined for p 4362 * conversion */ 4363 void *ptr_arg = NULL; 4364 4365 if (fmt_spec == 'p') 4366 { 4367 length_modifier = '\0'; 4368 ptr_arg = 4369 # if defined(FEAT_EVAL) 4370 tvs != NULL ? (void *)tv_str(tvs, &arg_idx) : 4371 # endif 4372 va_arg(ap, void *); 4373 if (ptr_arg != NULL) 4374 arg_sign = 1; 4375 } 4376 else if (fmt_spec == 'd') 4377 { 4378 /* signed */ 4379 switch (length_modifier) 4380 { 4381 case '\0': 4382 case 'h': 4383 /* char and short arguments are passed as int. */ 4384 int_arg = 4385 # if defined(FEAT_EVAL) 4386 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4387 # endif 4388 va_arg(ap, int); 4389 if (int_arg > 0) 4390 arg_sign = 1; 4391 else if (int_arg < 0) 4392 arg_sign = -1; 4393 break; 4394 case 'l': 4395 long_arg = 4396 # if defined(FEAT_EVAL) 4397 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4398 # endif 4399 va_arg(ap, long int); 4400 if (long_arg > 0) 4401 arg_sign = 1; 4402 else if (long_arg < 0) 4403 arg_sign = -1; 4404 break; 4405 # ifdef FEAT_NUM64 4406 case 'L': 4407 llong_arg = 4408 # if defined(FEAT_EVAL) 4409 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4410 # endif 4411 va_arg(ap, varnumber_T); 4412 if (llong_arg > 0) 4413 arg_sign = 1; 4414 else if (llong_arg < 0) 4415 arg_sign = -1; 4416 break; 4417 # endif 4418 } 4419 } 4420 else 4421 { 4422 /* unsigned */ 4423 switch (length_modifier) 4424 { 4425 case '\0': 4426 case 'h': 4427 uint_arg = 4428 # if defined(FEAT_EVAL) 4429 tvs != NULL ? (unsigned) 4430 tv_nr(tvs, &arg_idx) : 4431 # endif 4432 va_arg(ap, unsigned int); 4433 if (uint_arg != 0) 4434 arg_sign = 1; 4435 break; 4436 case 'l': 4437 ulong_arg = 4438 # if defined(FEAT_EVAL) 4439 tvs != NULL ? (unsigned long) 4440 tv_nr(tvs, &arg_idx) : 4441 # endif 4442 va_arg(ap, unsigned long int); 4443 if (ulong_arg != 0) 4444 arg_sign = 1; 4445 break; 4446 # ifdef FEAT_NUM64 4447 case 'L': 4448 ullong_arg = 4449 # if defined(FEAT_EVAL) 4450 tvs != NULL ? (uvarnumber_T) 4451 tv_nr(tvs, &arg_idx) : 4452 # endif 4453 va_arg(ap, uvarnumber_T); 4454 if (ullong_arg != 0) 4455 arg_sign = 1; 4456 break; 4457 # endif 4458 } 4459 } 4460 4461 str_arg = tmp; 4462 str_arg_l = 0; 4463 4464 /* NOTE: 4465 * For d, i, u, o, x, and X conversions, if precision is 4466 * specified, the '0' flag should be ignored. This is so 4467 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4468 * FreeBSD, NetBSD; but not with Perl. 4469 */ 4470 if (precision_specified) 4471 zero_padding = 0; 4472 if (fmt_spec == 'd') 4473 { 4474 if (force_sign && arg_sign >= 0) 4475 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4476 /* leave negative numbers for sprintf to handle, to 4477 * avoid handling tricky cases like (short int)-32768 */ 4478 } 4479 else if (alternate_form) 4480 { 4481 if (arg_sign != 0 4482 && (fmt_spec == 'x' || fmt_spec == 'X') ) 4483 { 4484 tmp[str_arg_l++] = '0'; 4485 tmp[str_arg_l++] = fmt_spec; 4486 } 4487 /* alternate form should have no effect for p 4488 * conversion, but ... */ 4489 } 4490 4491 zero_padding_insertion_ind = str_arg_l; 4492 if (!precision_specified) 4493 precision = 1; /* default precision is 1 */ 4494 if (precision == 0 && arg_sign == 0) 4495 { 4496 /* When zero value is formatted with an explicit 4497 * precision 0, the resulting formatted string is 4498 * empty (d, i, u, o, x, X, p). */ 4499 } 4500 else 4501 { 4502 char f[6]; 4503 int f_l = 0; 4504 4505 /* construct a simple format string for sprintf */ 4506 f[f_l++] = '%'; 4507 if (!length_modifier) 4508 ; 4509 else if (length_modifier == 'L') 4510 { 4511 # ifdef FEAT_NUM64 4512 # ifdef WIN3264 4513 f[f_l++] = 'I'; 4514 f[f_l++] = '6'; 4515 f[f_l++] = '4'; 4516 # else 4517 f[f_l++] = 'l'; 4518 f[f_l++] = 'l'; 4519 # endif 4520 # else 4521 f[f_l++] = 'l'; 4522 # endif 4523 } 4524 else 4525 f[f_l++] = length_modifier; 4526 f[f_l++] = fmt_spec; 4527 f[f_l++] = '\0'; 4528 4529 if (fmt_spec == 'p') 4530 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4531 else if (fmt_spec == 'd') 4532 { 4533 /* signed */ 4534 switch (length_modifier) 4535 { 4536 case '\0': 4537 case 'h': str_arg_l += sprintf( 4538 tmp + str_arg_l, f, int_arg); 4539 break; 4540 case 'l': str_arg_l += sprintf( 4541 tmp + str_arg_l, f, long_arg); 4542 break; 4543 # ifdef FEAT_NUM64 4544 case 'L': str_arg_l += sprintf( 4545 tmp + str_arg_l, f, llong_arg); 4546 break; 4547 # endif 4548 } 4549 } 4550 else 4551 { 4552 /* unsigned */ 4553 switch (length_modifier) 4554 { 4555 case '\0': 4556 case 'h': str_arg_l += sprintf( 4557 tmp + str_arg_l, f, uint_arg); 4558 break; 4559 case 'l': str_arg_l += sprintf( 4560 tmp + str_arg_l, f, ulong_arg); 4561 break; 4562 # ifdef FEAT_NUM64 4563 case 'L': str_arg_l += sprintf( 4564 tmp + str_arg_l, f, ullong_arg); 4565 break; 4566 # endif 4567 } 4568 } 4569 4570 /* include the optional minus sign and possible 4571 * "0x" in the region before the zero padding 4572 * insertion point */ 4573 if (zero_padding_insertion_ind < str_arg_l 4574 && tmp[zero_padding_insertion_ind] == '-') 4575 zero_padding_insertion_ind++; 4576 if (zero_padding_insertion_ind + 1 < str_arg_l 4577 && tmp[zero_padding_insertion_ind] == '0' 4578 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4579 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4580 zero_padding_insertion_ind += 2; 4581 } 4582 4583 { 4584 size_t num_of_digits = str_arg_l 4585 - zero_padding_insertion_ind; 4586 4587 if (alternate_form && fmt_spec == 'o' 4588 /* unless zero is already the first 4589 * character */ 4590 && !(zero_padding_insertion_ind < str_arg_l 4591 && tmp[zero_padding_insertion_ind] == '0')) 4592 { 4593 /* assure leading zero for alternate-form 4594 * octal numbers */ 4595 if (!precision_specified 4596 || precision < num_of_digits + 1) 4597 { 4598 /* precision is increased to force the 4599 * first character to be zero, except if a 4600 * zero value is formatted with an 4601 * explicit precision of zero */ 4602 precision = num_of_digits + 1; 4603 precision_specified = 1; 4604 } 4605 } 4606 /* zero padding to specified precision? */ 4607 if (num_of_digits < precision) 4608 number_of_zeros_to_pad = precision - num_of_digits; 4609 } 4610 /* zero padding to specified minimal field width? */ 4611 if (!justify_left && zero_padding) 4612 { 4613 int n = (int)(min_field_width - (str_arg_l 4614 + number_of_zeros_to_pad)); 4615 if (n > 0) 4616 number_of_zeros_to_pad += n; 4617 } 4618 break; 4619 } 4620 4621 # ifdef FEAT_FLOAT 4622 case 'f': 4623 case 'e': 4624 case 'E': 4625 case 'g': 4626 case 'G': 4627 { 4628 /* Floating point. */ 4629 double f; 4630 double abs_f; 4631 char format[40]; 4632 int l; 4633 int remove_trailing_zeroes = FALSE; 4634 4635 f = 4636 # if defined(FEAT_EVAL) 4637 tvs != NULL ? tv_float(tvs, &arg_idx) : 4638 # endif 4639 va_arg(ap, double); 4640 abs_f = f < 0 ? -f : f; 4641 4642 if (fmt_spec == 'g' || fmt_spec == 'G') 4643 { 4644 /* Would be nice to use %g directly, but it prints 4645 * "1.0" as "1", we don't want that. */ 4646 if ((abs_f >= 0.001 && abs_f < 10000000.0) 4647 || abs_f == 0.0) 4648 fmt_spec = 'f'; 4649 else 4650 fmt_spec = fmt_spec == 'g' ? 'e' : 'E'; 4651 remove_trailing_zeroes = TRUE; 4652 } 4653 4654 if (fmt_spec == 'f' && 4655 # ifdef VAX 4656 abs_f > 1.0e38 4657 # else 4658 abs_f > 1.0e307 4659 # endif 4660 ) 4661 { 4662 /* Avoid a buffer overflow */ 4663 strcpy(tmp, "inf"); 4664 str_arg_l = 3; 4665 } 4666 else 4667 { 4668 format[0] = '%'; 4669 l = 1; 4670 if (precision_specified) 4671 { 4672 size_t max_prec = TMP_LEN - 10; 4673 4674 /* Make sure we don't get more digits than we 4675 * have room for. */ 4676 if (fmt_spec == 'f' && abs_f > 1.0) 4677 max_prec -= (size_t)log10(abs_f); 4678 if (precision > max_prec) 4679 precision = max_prec; 4680 l += sprintf(format + 1, ".%d", (int)precision); 4681 } 4682 format[l] = fmt_spec; 4683 format[l + 1] = NUL; 4684 str_arg_l = sprintf(tmp, format, f); 4685 4686 if (remove_trailing_zeroes) 4687 { 4688 int i; 4689 char *tp; 4690 4691 /* Using %g or %G: remove superfluous zeroes. */ 4692 if (fmt_spec == 'f') 4693 tp = tmp + str_arg_l - 1; 4694 else 4695 { 4696 tp = (char *)vim_strchr((char_u *)tmp, 4697 fmt_spec == 'e' ? 'e' : 'E'); 4698 if (tp != NULL) 4699 { 4700 /* Remove superfluous '+' and leading 4701 * zeroes from the exponent. */ 4702 if (tp[1] == '+') 4703 { 4704 /* Change "1.0e+07" to "1.0e07" */ 4705 STRMOVE(tp + 1, tp + 2); 4706 --str_arg_l; 4707 } 4708 i = (tp[1] == '-') ? 2 : 1; 4709 while (tp[i] == '0') 4710 { 4711 /* Change "1.0e07" to "1.0e7" */ 4712 STRMOVE(tp + i, tp + i + 1); 4713 --str_arg_l; 4714 } 4715 --tp; 4716 } 4717 } 4718 4719 if (tp != NULL && !precision_specified) 4720 /* Remove trailing zeroes, but keep the one 4721 * just after a dot. */ 4722 while (tp > tmp + 2 && *tp == '0' 4723 && tp[-1] != '.') 4724 { 4725 STRMOVE(tp, tp + 1); 4726 --tp; 4727 --str_arg_l; 4728 } 4729 } 4730 else 4731 { 4732 char *tp; 4733 4734 /* Be consistent: some printf("%e") use 1.0e+12 4735 * and some 1.0e+012. Remove one zero in the last 4736 * case. */ 4737 tp = (char *)vim_strchr((char_u *)tmp, 4738 fmt_spec == 'e' ? 'e' : 'E'); 4739 if (tp != NULL && (tp[1] == '+' || tp[1] == '-') 4740 && tp[2] == '0' 4741 && vim_isdigit(tp[3]) 4742 && vim_isdigit(tp[4])) 4743 { 4744 STRMOVE(tp + 2, tp + 3); 4745 --str_arg_l; 4746 } 4747 } 4748 } 4749 str_arg = tmp; 4750 break; 4751 } 4752 # endif 4753 4754 default: 4755 /* unrecognized conversion specifier, keep format string 4756 * as-is */ 4757 zero_padding = 0; /* turn zero padding off for non-numeric 4758 conversion */ 4759 justify_left = 1; 4760 min_field_width = 0; /* reset flags */ 4761 4762 /* discard the unrecognized conversion, just keep * 4763 * the unrecognized conversion character */ 4764 str_arg = p; 4765 str_arg_l = 0; 4766 if (*p != NUL) 4767 str_arg_l++; /* include invalid conversion specifier 4768 unchanged if not at end-of-string */ 4769 break; 4770 } 4771 4772 if (*p != NUL) 4773 p++; /* step over the just processed conversion specifier */ 4774 4775 /* insert padding to the left as requested by min_field_width; 4776 * this does not include the zero padding in case of numerical 4777 * conversions*/ 4778 if (!justify_left) 4779 { 4780 /* left padding with blank or zero */ 4781 int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad)); 4782 4783 if (pn > 0) 4784 { 4785 if (str_l < str_m) 4786 { 4787 size_t avail = str_m - str_l; 4788 4789 vim_memset(str + str_l, zero_padding ? '0' : ' ', 4790 (size_t)pn > avail ? avail 4791 : (size_t)pn); 4792 } 4793 str_l += pn; 4794 } 4795 } 4796 4797 /* zero padding as requested by the precision or by the minimal 4798 * field width for numeric conversions required? */ 4799 if (number_of_zeros_to_pad == 0) 4800 { 4801 /* will not copy first part of numeric right now, * 4802 * force it to be copied later in its entirety */ 4803 zero_padding_insertion_ind = 0; 4804 } 4805 else 4806 { 4807 /* insert first part of numerics (sign or '0x') before zero 4808 * padding */ 4809 int zn = (int)zero_padding_insertion_ind; 4810 4811 if (zn > 0) 4812 { 4813 if (str_l < str_m) 4814 { 4815 size_t avail = str_m - str_l; 4816 4817 mch_memmove(str + str_l, str_arg, 4818 (size_t)zn > avail ? avail 4819 : (size_t)zn); 4820 } 4821 str_l += zn; 4822 } 4823 4824 /* insert zero padding as requested by the precision or min 4825 * field width */ 4826 zn = (int)number_of_zeros_to_pad; 4827 if (zn > 0) 4828 { 4829 if (str_l < str_m) 4830 { 4831 size_t avail = str_m-str_l; 4832 4833 vim_memset(str + str_l, '0', 4834 (size_t)zn > avail ? avail 4835 : (size_t)zn); 4836 } 4837 str_l += zn; 4838 } 4839 } 4840 4841 /* insert formatted string 4842 * (or as-is conversion specifier for unknown conversions) */ 4843 { 4844 int sn = (int)(str_arg_l - zero_padding_insertion_ind); 4845 4846 if (sn > 0) 4847 { 4848 if (str_l < str_m) 4849 { 4850 size_t avail = str_m - str_l; 4851 4852 mch_memmove(str + str_l, 4853 str_arg + zero_padding_insertion_ind, 4854 (size_t)sn > avail ? avail : (size_t)sn); 4855 } 4856 str_l += sn; 4857 } 4858 } 4859 4860 /* insert right padding */ 4861 if (justify_left) 4862 { 4863 /* right blank padding to the field width */ 4864 int pn = (int)(min_field_width 4865 - (str_arg_l + number_of_zeros_to_pad)); 4866 4867 if (pn > 0) 4868 { 4869 if (str_l < str_m) 4870 { 4871 size_t avail = str_m - str_l; 4872 4873 vim_memset(str + str_l, ' ', 4874 (size_t)pn > avail ? avail 4875 : (size_t)pn); 4876 } 4877 str_l += pn; 4878 } 4879 } 4880 } 4881 } 4882 4883 if (str_m > 0) 4884 { 4885 /* make sure the string is nul-terminated even at the expense of 4886 * overwriting the last character (shouldn't happen, but just in case) 4887 * */ 4888 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 4889 } 4890 4891 if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 4892 EMSG(_("E767: Too many arguments to printf()")); 4893 4894 /* Return the number of characters formatted (excluding trailing nul 4895 * character), that is, the number of characters that would have been 4896 * written to the buffer if it were large enough. */ 4897 return (int)str_l; 4898 } 4899 4900 #endif /* PROTO */ 4901