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