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