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 #ifdef HAVE_STDARG_H 19 # include <stdarg.h> 20 #endif 21 22 static int other_sourcing_name __ARGS((void)); 23 static char_u *get_emsg_source __ARGS((void)); 24 static char_u *get_emsg_lnum __ARGS((void)); 25 static void add_msg_hist __ARGS((char_u *s, int len, int attr)); 26 static void hit_return_msg __ARGS((void)); 27 static void msg_home_replace_attr __ARGS((char_u *fname, int attr)); 28 #ifdef FEAT_MBYTE 29 static char_u *screen_puts_mbyte __ARGS((char_u *s, int l, int attr)); 30 #endif 31 static void msg_puts_attr_len __ARGS((char_u *str, int maxlen, int attr)); 32 static void msg_puts_display __ARGS((char_u *str, int maxlen, int attr, int recurse)); 33 static void msg_scroll_up __ARGS((void)); 34 static void store_sb_text __ARGS((char_u **sb_str, char_u *s, int attr, int *sb_col, int finish)); 35 static void t_puts __ARGS((int *t_col, char_u *t_s, char_u *s, int attr)); 36 static void msg_puts_printf __ARGS((char_u *str, int maxlen)); 37 static int do_more_prompt __ARGS((int typed_char)); 38 static void msg_screen_putchar __ARGS((int c, int attr)); 39 static int msg_check_screen __ARGS((void)); 40 static void redir_write __ARGS((char_u *s, int maxlen)); 41 static void verbose_write __ARGS((char_u *s, int maxlen)); 42 #ifdef FEAT_CON_DIALOG 43 static char_u *msg_show_console_dialog __ARGS((char_u *message, char_u *buttons, int dfltbutton)); 44 static int confirm_msg_used = FALSE; /* displaying confirm_msg */ 45 static char_u *confirm_msg = NULL; /* ":confirm" message */ 46 static char_u *confirm_msg_tail; /* tail of confirm_msg */ 47 #endif 48 49 struct msg_hist 50 { 51 struct msg_hist *next; 52 char_u *msg; 53 int attr; 54 }; 55 56 static struct msg_hist *first_msg_hist = NULL; 57 static struct msg_hist *last_msg_hist = NULL; 58 static int msg_hist_len = 0; 59 static int msg_hist_off = FALSE; /* don't add messages to history */ 60 61 /* 62 * When writing messages to the screen, there are many different situations. 63 * A number of variables is used to remember the current state: 64 * msg_didany TRUE when messages were written since the last time the 65 * user reacted to a prompt. 66 * Reset: After hitting a key for the hit-return prompt, 67 * hitting <CR> for the command line or input(). 68 * Set: When any message is written to the screen. 69 * msg_didout TRUE when something was written to the current line. 70 * Reset: When advancing to the next line, when the current 71 * text can be overwritten. 72 * Set: When any message is written to the screen. 73 * msg_nowait No extra delay for the last drawn message. 74 * Used in normal_cmd() before the mode message is drawn. 75 * emsg_on_display There was an error message recently. Indicates that there 76 * should be a delay before redrawing. 77 * msg_scroll The next message should not overwrite the current one. 78 * msg_scrolled How many lines the screen has been scrolled (because of 79 * messages). Used in update_screen() to scroll the screen 80 * back. Incremented each time the screen scrolls a line. 81 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 82 * writes something without scrolling should not make 83 * need_wait_return to be set. This is a hack to make ":ts" 84 * work without an extra prompt. 85 * lines_left Number of lines available for messages before the 86 * more-prompt is to be given. 87 * need_wait_return TRUE when the hit-return prompt is needed. 88 * Reset: After giving the hit-return prompt, when the user 89 * has answered some other prompt. 90 * Set: When the ruler or typeahead display is overwritten, 91 * scrolling the screen for some message. 92 * keep_msg Message to be displayed after redrawing the screen, in 93 * main_loop(). 94 * This is an allocated string or NULL when not used. 95 */ 96 97 /* 98 * msg(s) - displays the string 's' on the status line 99 * When terminal not initialized (yet) mch_errmsg(..) is used. 100 * return TRUE if wait_return not called 101 */ 102 int 103 msg(s) 104 char_u *s; 105 { 106 return msg_attr_keep(s, 0, FALSE); 107 } 108 109 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 110 || defined(PROTO) 111 /* 112 * Like msg() but keep it silent when 'verbosefile' is set. 113 */ 114 int 115 verb_msg(s) 116 char_u *s; 117 { 118 int n; 119 120 verbose_enter(); 121 n = msg_attr_keep(s, 0, FALSE); 122 verbose_leave(); 123 124 return n; 125 } 126 #endif 127 128 int 129 msg_attr(s, attr) 130 char_u *s; 131 int attr; 132 { 133 return msg_attr_keep(s, attr, FALSE); 134 } 135 136 int 137 msg_attr_keep(s, attr, keep) 138 char_u *s; 139 int attr; 140 int keep; /* TRUE: set keep_msg if it doesn't scroll */ 141 { 142 static int entered = 0; 143 int retval; 144 char_u *buf = NULL; 145 146 #ifdef FEAT_EVAL 147 if (attr == 0) 148 set_vim_var_string(VV_STATUSMSG, s, -1); 149 #endif 150 151 /* 152 * It is possible that displaying a messages causes a problem (e.g., 153 * when redrawing the window), which causes another message, etc.. To 154 * break this loop, limit the recursiveness to 3 levels. 155 */ 156 if (entered >= 3) 157 return TRUE; 158 ++entered; 159 160 /* Add message to history (unless it's a repeated kept message or a 161 * truncated message) */ 162 if (s != keep_msg 163 || (*s != '<' 164 && last_msg_hist != NULL 165 && last_msg_hist->msg != NULL 166 && STRCMP(s, last_msg_hist->msg))) 167 add_msg_hist(s, -1, attr); 168 169 /* When displaying keep_msg, don't let msg_start() free it, caller must do 170 * that. */ 171 if (s == keep_msg) 172 keep_msg = NULL; 173 174 /* Truncate the message if needed. */ 175 buf = msg_strtrunc(s); 176 if (buf != NULL) 177 s = buf; 178 179 msg_start(); 180 msg_outtrans_attr(s, attr); 181 msg_clr_eos(); 182 retval = msg_end(); 183 184 if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1) 185 * Columns + sc_col) 186 { 187 set_keep_msg(s); 188 keep_msg_attr = 0; 189 } 190 191 vim_free(buf); 192 --entered; 193 return retval; 194 } 195 196 /* 197 * Truncate a string such that it can be printed without causing a scroll. 198 * Returns an allocated string or NULL when no truncating is done. 199 */ 200 char_u * 201 msg_strtrunc(s) 202 char_u *s; 203 { 204 char_u *buf = NULL; 205 int len; 206 int room; 207 208 /* May truncate message to avoid a hit-return prompt */ 209 if (!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 210 && !exmode_active && msg_silent == 0) 211 { 212 len = vim_strsize(s); 213 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 214 if (len > room && room > 0) 215 { 216 #ifdef FEAT_MBYTE 217 if (enc_utf8) 218 /* may have up to 18 bytes per cell (6 per char, up to two 219 * composing chars) */ 220 buf = alloc((room + 2) * 18); 221 else if (enc_dbcs == DBCS_JPNU) 222 /* may have up to 2 bytes per cell for euc-jp */ 223 buf = alloc((room + 2) * 2); 224 else 225 #endif 226 buf = alloc(room + 2); 227 if (buf != NULL) 228 trunc_string(s, buf, room); 229 } 230 } 231 return buf; 232 } 233 234 /* 235 * Truncate a string "s" to "buf" with cell width "room". 236 * "s" and "buf" may be equal. 237 */ 238 void 239 trunc_string(s, buf, room) 240 char_u *s; 241 char_u *buf; 242 int room; 243 { 244 int half; 245 int len; 246 int e; 247 int i; 248 int n; 249 250 room -= 3; 251 half = room / 2; 252 len = 0; 253 254 /* First part: Start of the string. */ 255 for (e = 0; len < half; ++e) 256 { 257 if (s[e] == NUL) 258 { 259 /* text fits without truncating! */ 260 buf[e] = NUL; 261 return; 262 } 263 n = ptr2cells(s + e); 264 if (len + n >= half) 265 break; 266 len += n; 267 buf[e] = s[e]; 268 #ifdef FEAT_MBYTE 269 if (has_mbyte) 270 for (n = (*mb_ptr2len_check)(s + e); --n > 0; ) 271 { 272 ++e; 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_check)(s + i); 291 } 292 } 293 else if (enc_utf8) 294 { 295 /* For UTF-8 we can go backwards easily. */ 296 i = (int)STRLEN(s); 297 for (;;) 298 { 299 half = i - (*mb_head_off)(s, s + i - 1) - 1; 300 n = ptr2cells(s + half); 301 if (len + n > room) 302 break; 303 len += n; 304 i = half; 305 } 306 } 307 else 308 #endif 309 { 310 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 311 len += n; 312 } 313 314 /* Set the middle and copy the last part. */ 315 mch_memmove(buf + e, "...", (size_t)3); 316 mch_memmove(buf + e + 3, s + i, STRLEN(s + i) + 1); 317 } 318 319 /* 320 * Automatic prototype generation does not understand this function. 321 * Note: Caller of smgs() and smsg_attr() must check the resulting string is 322 * shorter than IOSIZE!!! 323 */ 324 #ifndef PROTO 325 # ifndef HAVE_STDARG_H 326 327 int 328 #ifdef __BORLANDC__ 329 _RTLENTRYF 330 #endif 331 smsg __ARGS((char_u *, long, long, long, 332 long, long, long, long, long, long, long)); 333 int 334 #ifdef __BORLANDC__ 335 _RTLENTRYF 336 #endif 337 smsg_attr __ARGS((int, char_u *, long, long, long, 338 long, long, long, long, long, long, long)); 339 340 int vim_snprintf __ARGS((char *, size_t, char *, long, long, long, 341 long, long, long, long, long, long, long)); 342 343 /* 344 * smsg(str, arg, ...) is like using sprintf(buf, str, arg, ...) and then 345 * calling msg(buf). 346 * The buffer used is IObuff, the message is truncated at IOSIZE. 347 */ 348 349 /* VARARGS */ 350 int 351 #ifdef __BORLANDC__ 352 _RTLENTRYF 353 #endif 354 smsg(s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 355 char_u *s; 356 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 357 { 358 return smsg_attr(0, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 359 } 360 361 /* VARARGS */ 362 int 363 #ifdef __BORLANDC__ 364 _RTLENTRYF 365 #endif 366 smsg_attr(attr, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 367 int attr; 368 char_u *s; 369 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 370 { 371 vim_snprintf((char *)IObuff, IOSIZE, (char *)s, 372 a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 373 return msg_attr(IObuff, attr); 374 } 375 376 # else /* HAVE_STDARG_H */ 377 378 int vim_snprintf(char *str, size_t str_m, char *fmt, ...); 379 380 int 381 #ifdef __BORLANDC__ 382 _RTLENTRYF 383 #endif 384 smsg(char_u *s, ...) 385 { 386 va_list arglist; 387 388 va_start(arglist, s); 389 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 390 va_end(arglist); 391 return msg(IObuff); 392 } 393 394 int 395 #ifdef __BORLANDC__ 396 _RTLENTRYF 397 #endif 398 smsg_attr(int attr, char_u *s, ...) 399 { 400 va_list arglist; 401 402 va_start(arglist, s); 403 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 404 va_end(arglist); 405 return msg_attr(IObuff, attr); 406 } 407 408 # endif /* HAVE_STDARG_H */ 409 #endif 410 411 /* 412 * Remember the last sourcing name/lnum used in an error message, so that it 413 * isn't printed each time when it didn't change. 414 */ 415 static int last_sourcing_lnum = 0; 416 static char_u *last_sourcing_name = NULL; 417 418 /* 419 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 420 * for the next error message; 421 */ 422 void 423 reset_last_sourcing() 424 { 425 vim_free(last_sourcing_name); 426 last_sourcing_name = NULL; 427 last_sourcing_lnum = 0; 428 } 429 430 /* 431 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 432 */ 433 static int 434 other_sourcing_name() 435 { 436 if (sourcing_name != NULL) 437 { 438 if (last_sourcing_name != NULL) 439 return STRCMP(sourcing_name, last_sourcing_name) != 0; 440 return TRUE; 441 } 442 return FALSE; 443 } 444 445 /* 446 * Get the message about the source, as used for an error message. 447 * Returns an allocated string with room for one more character. 448 * Returns NULL when no message is to be given. 449 */ 450 static char_u * 451 get_emsg_source() 452 { 453 char_u *Buf, *p; 454 455 if (sourcing_name != NULL && other_sourcing_name()) 456 { 457 p = (char_u *)_("Error detected while processing %s:"); 458 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 459 if (Buf != NULL) 460 sprintf((char *)Buf, (char *)p, sourcing_name); 461 return Buf; 462 } 463 return NULL; 464 } 465 466 /* 467 * Get the message about the source lnum, as used for an error message. 468 * Returns an allocated string with room for one more character. 469 * Returns NULL when no message is to be given. 470 */ 471 static char_u * 472 get_emsg_lnum() 473 { 474 char_u *Buf, *p; 475 476 /* lnum is 0 when executing a command from the command line 477 * argument, we don't want a line number then */ 478 if (sourcing_name != NULL 479 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 480 && sourcing_lnum != 0) 481 { 482 p = (char_u *)_("line %4ld:"); 483 Buf = alloc((unsigned)(STRLEN(p) + 20)); 484 if (Buf != NULL) 485 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 486 return Buf; 487 } 488 return NULL; 489 } 490 491 /* 492 * Display name and line number for the source of an error. 493 * Remember the file name and line number, so that for the next error the info 494 * is only displayed if it changed. 495 */ 496 void 497 msg_source(attr) 498 int attr; 499 { 500 char_u *p; 501 502 ++no_wait_return; 503 p = get_emsg_source(); 504 if (p != NULL) 505 { 506 msg_attr(p, attr); 507 vim_free(p); 508 } 509 p = get_emsg_lnum(); 510 if (p != NULL) 511 { 512 msg_attr(p, hl_attr(HLF_N)); 513 vim_free(p); 514 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 515 } 516 517 /* remember the last sourcing name printed, also when it's empty */ 518 if (sourcing_name == NULL || other_sourcing_name()) 519 { 520 vim_free(last_sourcing_name); 521 if (sourcing_name == NULL) 522 last_sourcing_name = NULL; 523 else 524 last_sourcing_name = vim_strsave(sourcing_name); 525 } 526 --no_wait_return; 527 } 528 529 /* 530 * emsg() - display an error message 531 * 532 * Rings the bell, if appropriate, and calls message() to do the real work 533 * When terminal not initialized (yet) mch_errmsg(..) is used. 534 * 535 * return TRUE if wait_return not called 536 */ 537 int 538 emsg(s) 539 char_u *s; 540 { 541 int attr; 542 char_u *p; 543 #ifdef FEAT_EVAL 544 int ignore = FALSE; 545 int severe; 546 #endif 547 548 called_emsg = TRUE; 549 ex_exitval = 1; 550 551 /* 552 * If "emsg_severe" is TRUE: When an error exception is to be thrown, 553 * prefer this message over previous messages for the same command. 554 */ 555 #ifdef FEAT_EVAL 556 severe = emsg_severe; 557 emsg_severe = FALSE; 558 #endif 559 560 /* 561 * If "emsg_off" is set: no error messages at the moment. 562 * If 'debug' is set: do error message anyway, but without side effects. 563 * If "emsg_skip" is set: never do error messages. 564 */ 565 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL) 566 #ifdef FEAT_EVAL 567 || emsg_skip > 0 568 #endif 569 ) 570 return TRUE; 571 572 if (!emsg_off) 573 { 574 #ifdef FEAT_EVAL 575 /* 576 * Cause a throw of an error exception if appropriate. Don't display 577 * the error message in this case. (If no matching catch clause will 578 * be found, the message will be displayed later on.) "ignore" is set 579 * when the message should be ignored completely (used for the 580 * interrupt message). 581 */ 582 if (cause_errthrow(s, severe, &ignore) == TRUE) 583 { 584 if (!ignore) 585 did_emsg = TRUE; 586 return TRUE; 587 } 588 589 /* set "v:errmsg", also when using ":silent! cmd" */ 590 set_vim_var_string(VV_ERRMSG, s, -1); 591 #endif 592 593 /* 594 * When using ":silent! cmd" ignore error messsages. 595 * But do write it to the redirection file. 596 */ 597 if (emsg_silent != 0) 598 { 599 msg_start(); 600 p = get_emsg_source(); 601 if (p != NULL) 602 { 603 STRCAT(p, "\n"); 604 redir_write(p, -1); 605 vim_free(p); 606 } 607 p = get_emsg_lnum(); 608 if (p != NULL) 609 { 610 STRCAT(p, "\n"); 611 redir_write(p, -1); 612 vim_free(p); 613 } 614 redir_write(s, -1); 615 return TRUE; 616 } 617 618 /* Reset msg_silent, an error causes messages to be switched back on. */ 619 msg_silent = 0; 620 cmd_silent = FALSE; 621 622 if (global_busy) /* break :global command */ 623 ++global_busy; 624 625 if (p_eb) 626 beep_flush(); /* also includes flush_buffers() */ 627 else 628 flush_buffers(FALSE); /* flush internal buffers */ 629 did_emsg = TRUE; /* flag for DoOneCmd() */ 630 } 631 632 emsg_on_display = TRUE; /* remember there is an error message */ 633 ++msg_scroll; /* don't overwrite a previous message */ 634 attr = hl_attr(HLF_E); /* set highlight mode for error messages */ 635 if (msg_scrolled) 636 need_wait_return = TRUE; /* needed in case emsg() is called after 637 * wait_return has reset need_wait_return 638 * and a redraw is expected because 639 * msg_scrolled is non-zero */ 640 641 /* 642 * Display name and line number for the source of the error. 643 */ 644 msg_source(attr); 645 646 /* 647 * Display the error message itself. 648 */ 649 msg_nowait = FALSE; /* wait for this msg */ 650 return msg_attr(s, attr); 651 } 652 653 /* 654 * Print an error message with one "%s" and one string argument. 655 */ 656 int 657 emsg2(s, a1) 658 char_u *s, *a1; 659 { 660 return emsg3(s, a1, NULL); 661 } 662 663 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 664 665 void 666 emsg_invreg(name) 667 int name; 668 { 669 EMSG2(_("E354: Invalid register name: '%s'"), transchar(name)); 670 } 671 672 /* 673 * Like msg(), but truncate to a single line if p_shm contains 't', or when 674 * "force" is TRUE. This truncates in another way as for normal messages. 675 * Careful: The string may be changed by msg_may_trunc()! 676 * Returns a pointer to the printed message, if wait_return() not called. 677 */ 678 char_u * 679 msg_trunc_attr(s, force, attr) 680 char_u *s; 681 int force; 682 int attr; 683 { 684 int n; 685 686 /* Add message to history before truncating */ 687 add_msg_hist(s, -1, attr); 688 689 s = msg_may_trunc(force, s); 690 691 msg_hist_off = TRUE; 692 n = msg_attr(s, attr); 693 msg_hist_off = FALSE; 694 695 if (n) 696 return s; 697 return NULL; 698 } 699 700 /* 701 * Check if message "s" should be truncated at the start (for filenames). 702 * Return a pointer to where the truncated message starts. 703 * Note: May change the message by replacing a character with '<'. 704 */ 705 char_u * 706 msg_may_trunc(force, s) 707 int force; 708 char_u *s; 709 { 710 int n; 711 int room; 712 713 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 714 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 715 && (n = (int)STRLEN(s) - room) > 0) 716 { 717 #ifdef FEAT_MBYTE 718 if (has_mbyte) 719 { 720 int size = vim_strsize(s); 721 722 for (n = 0; size >= room; ) 723 { 724 size -= (*mb_ptr2cells)(s + n); 725 n += (*mb_ptr2len_check)(s + n); 726 } 727 --n; 728 } 729 #endif 730 s += n; 731 *s = '<'; 732 } 733 return s; 734 } 735 736 static void 737 add_msg_hist(s, len, attr) 738 char_u *s; 739 int len; /* -1 for undetermined length */ 740 int attr; 741 { 742 struct msg_hist *p; 743 744 if (msg_hist_off || msg_silent != 0) 745 return; 746 747 /* Don't let the message history get too big */ 748 while (msg_hist_len > 20) 749 (void)delete_first_msg(); 750 751 /* allocate an entry and add the message at the end of the history */ 752 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 753 if (p != NULL) 754 { 755 if (len < 0) 756 len = (int)STRLEN(s); 757 /* remove leading and trailing newlines */ 758 while (len > 0 && *s == '\n') 759 { 760 ++s; 761 --len; 762 } 763 while (len > 0 && s[len - 1] == '\n') 764 --len; 765 p->msg = vim_strnsave(s, len); 766 p->next = NULL; 767 p->attr = attr; 768 if (last_msg_hist != NULL) 769 last_msg_hist->next = p; 770 last_msg_hist = p; 771 if (first_msg_hist == NULL) 772 first_msg_hist = last_msg_hist; 773 ++msg_hist_len; 774 } 775 } 776 777 /* 778 * Delete the first (oldest) message from the history. 779 * Returns FAIL if there are no messages. 780 */ 781 int 782 delete_first_msg() 783 { 784 struct msg_hist *p; 785 786 if (msg_hist_len <= 0) 787 return FAIL; 788 p = first_msg_hist; 789 first_msg_hist = p->next; 790 vim_free(p->msg); 791 vim_free(p); 792 --msg_hist_len; 793 return OK; 794 } 795 796 /* 797 * ":messages" command. 798 */ 799 /*ARGSUSED*/ 800 void 801 ex_messages(eap) 802 exarg_T *eap; 803 { 804 struct msg_hist *p; 805 char_u *s; 806 807 msg_hist_off = TRUE; 808 809 s = mch_getenv((char_u *)"LANG"); 810 if (s != NULL && *s != NUL) 811 msg_attr((char_u *) 812 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 813 hl_attr(HLF_T)); 814 815 for (p = first_msg_hist; p != NULL; p = p->next) 816 if (p->msg != NULL) 817 msg_attr(p->msg, p->attr); 818 819 msg_hist_off = FALSE; 820 } 821 822 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 823 /* 824 * Call this after prompting the user. This will avoid a hit-return message 825 * and a delay. 826 */ 827 void 828 msg_end_prompt() 829 { 830 need_wait_return = FALSE; 831 emsg_on_display = FALSE; 832 cmdline_row = msg_row; 833 msg_col = 0; 834 msg_clr_eos(); 835 } 836 #endif 837 838 /* 839 * wait for the user to hit a key (normally a return) 840 * if 'redraw' is TRUE, clear and redraw the screen 841 * if 'redraw' is FALSE, just redraw the screen 842 * if 'redraw' is -1, don't redraw at all 843 */ 844 void 845 wait_return(redraw) 846 int redraw; 847 { 848 int c; 849 int oldState; 850 int tmpState; 851 int had_got_int; 852 853 if (redraw == TRUE) 854 must_redraw = CLEAR; 855 856 /* If using ":silent cmd", don't wait for a return. Also don't set 857 * need_wait_return to do it later. */ 858 if (msg_silent != 0) 859 return; 860 861 /* 862 * With the global command (and some others) we only need one return at the 863 * end. Adjust cmdline_row to avoid the next message overwriting the last one. 864 * When inside vgetc(), we can't wait for a typed character at all. 865 */ 866 if (vgetc_busy) 867 return; 868 if (no_wait_return) 869 { 870 need_wait_return = TRUE; 871 if (!exmode_active) 872 cmdline_row = msg_row; 873 return; 874 } 875 876 redir_off = TRUE; /* don't redirect this message */ 877 oldState = State; 878 if (quit_more) 879 { 880 c = CAR; /* just pretend CR was hit */ 881 quit_more = FALSE; 882 got_int = FALSE; 883 } 884 else if (exmode_active) 885 { 886 MSG_PUTS(" "); /* make sure the cursor is on the right line */ 887 c = CAR; /* no need for a return in ex mode */ 888 got_int = FALSE; 889 } 890 else 891 { 892 /* Make sure the hit-return prompt is on screen when 'guioptions' was 893 * just changed. */ 894 screenalloc(FALSE); 895 896 State = HITRETURN; 897 #ifdef FEAT_MOUSE 898 setmouse(); 899 #endif 900 #ifdef USE_ON_FLY_SCROLL 901 dont_scroll = TRUE; /* disallow scrolling here */ 902 #endif 903 hit_return_msg(); 904 905 do 906 { 907 /* Remember "got_int", if it is set vgetc() probably returns a 908 * CTRL-C, but we need to loop then. */ 909 had_got_int = got_int; 910 911 /* Don't do mappings here, we put the character back in the 912 * typeahead buffer. */ 913 ++no_mapping; 914 ++allow_keys; 915 c = safe_vgetc(); 916 if (had_got_int && !global_busy) 917 got_int = FALSE; 918 --no_mapping; 919 --allow_keys; 920 921 #ifdef FEAT_CLIPBOARD 922 /* Strange way to allow copying (yanking) a modeless selection at 923 * the hit-enter prompt. Use CTRL-Y, because the same is used in 924 * Cmdline-mode and it's harmless when there is no selection. */ 925 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 926 { 927 clip_copy_modeless_selection(TRUE); 928 c = K_IGNORE; 929 } 930 #endif 931 if (p_more && !p_cp && (c == 'b' || c == 'k' || c == 'u' 932 || c == 'g' || c == K_UP)) 933 { 934 /* scroll back to show older messages */ 935 do_more_prompt(c); 936 if (quit_more) 937 { 938 c = CAR; /* just pretend CR was hit */ 939 quit_more = FALSE; 940 got_int = FALSE; 941 } 942 else 943 { 944 c = K_IGNORE; 945 hit_return_msg(); 946 } 947 } 948 } while ((had_got_int && c == Ctrl_C) 949 || c == K_IGNORE 950 #ifdef FEAT_GUI 951 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 952 #endif 953 #ifdef FEAT_MOUSE 954 || c == K_LEFTDRAG || c == K_LEFTRELEASE 955 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 956 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 957 || c == K_MOUSEDOWN || c == K_MOUSEUP 958 || (!mouse_has(MOUSE_RETURN) 959 && mouse_row < msg_row 960 && (c == K_LEFTMOUSE 961 || c == K_MIDDLEMOUSE 962 || c == K_RIGHTMOUSE 963 || c == K_X1MOUSE 964 || c == K_X2MOUSE)) 965 #endif 966 ); 967 ui_breakcheck(); 968 #ifdef FEAT_MOUSE 969 /* 970 * Avoid that the mouse-up event causes visual mode to start. 971 */ 972 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 973 || c == K_X1MOUSE || c == K_X2MOUSE) 974 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 975 else 976 #endif 977 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 978 { 979 char_u buf[2]; 980 981 /* Put the character back in the typeahead buffer. Don't use the 982 * stuff buffer, because lmaps wouldn't work. */ 983 buf[0] = c; 984 buf[1] = NUL; 985 ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE); 986 do_redraw = TRUE; /* need a redraw even though there is 987 typeahead */ 988 } 989 } 990 redir_off = FALSE; 991 992 /* 993 * If the user hits ':', '?' or '/' we get a command line from the next 994 * line. 995 */ 996 if (c == ':' || c == '?' || c == '/') 997 { 998 if (!exmode_active) 999 cmdline_row = msg_row; 1000 skip_redraw = TRUE; /* skip redraw once */ 1001 do_redraw = FALSE; 1002 } 1003 1004 /* 1005 * If the window size changed set_shellsize() will redraw the screen. 1006 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1007 * typed. 1008 */ 1009 tmpState = State; 1010 State = oldState; /* restore State before set_shellsize */ 1011 #ifdef FEAT_MOUSE 1012 setmouse(); 1013 #endif 1014 msg_check(); 1015 1016 #if defined(UNIX) || defined(VMS) 1017 /* 1018 * When switching screens, we need to output an extra newline on exit. 1019 */ 1020 if (swapping_screen() && !termcap_active) 1021 newline_on_exit = TRUE; 1022 #endif 1023 1024 need_wait_return = FALSE; 1025 did_wait_return = TRUE; 1026 emsg_on_display = FALSE; /* can delete error message now */ 1027 lines_left = -1; /* reset lines_left at next msg_start() */ 1028 reset_last_sourcing(); 1029 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1030 (Rows - cmdline_row - 1) * Columns + sc_col) 1031 { 1032 vim_free(keep_msg); 1033 keep_msg = NULL; /* don't redisplay message, it's too long */ 1034 } 1035 1036 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1037 { 1038 starttermcap(); /* start termcap before redrawing */ 1039 shell_resized(); 1040 } 1041 else if (!skip_redraw 1042 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1043 { 1044 starttermcap(); /* start termcap before redrawing */ 1045 redraw_later(VALID); 1046 } 1047 } 1048 1049 /* 1050 * Write the hit-return prompt. 1051 */ 1052 static void 1053 hit_return_msg() 1054 { 1055 int save_p_more = p_more; 1056 1057 p_more = FALSE; /* don't want see this message when scrolling back */ 1058 if (msg_didout) /* start on a new line */ 1059 msg_putchar('\n'); 1060 if (got_int) 1061 MSG_PUTS(_("Interrupt: ")); 1062 1063 MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), hl_attr(HLF_R)); 1064 if (!msg_use_printf()) 1065 msg_clr_eos(); 1066 p_more = save_p_more; 1067 } 1068 1069 /* 1070 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1071 */ 1072 void 1073 set_keep_msg(s) 1074 char_u *s; 1075 { 1076 vim_free(keep_msg); 1077 if (s != NULL && msg_silent == 0) 1078 keep_msg = vim_strsave(s); 1079 else 1080 keep_msg = NULL; 1081 keep_msg_more = FALSE; 1082 } 1083 1084 /* 1085 * Prepare for outputting characters in the command line. 1086 */ 1087 void 1088 msg_start() 1089 { 1090 int did_return = FALSE; 1091 1092 vim_free(keep_msg); 1093 keep_msg = NULL; /* don't display old message now */ 1094 if (!msg_scroll && full_screen) /* overwrite last message */ 1095 { 1096 msg_row = cmdline_row; 1097 msg_col = 1098 #ifdef FEAT_RIGHTLEFT 1099 cmdmsg_rl ? Columns - 1 : 1100 #endif 1101 0; 1102 } 1103 else if (msg_didout) /* start message on next line */ 1104 { 1105 msg_putchar('\n'); 1106 did_return = TRUE; 1107 if (exmode_active != EXMODE_NORMAL) 1108 cmdline_row = msg_row; 1109 } 1110 if (!msg_didany || lines_left < 0) 1111 msg_starthere(); 1112 if (msg_silent == 0) 1113 { 1114 msg_didout = FALSE; /* no output on current line yet */ 1115 cursor_off(); 1116 } 1117 1118 /* when redirecting, may need to start a new line. */ 1119 if (!did_return) 1120 redir_write((char_u *)"\n", -1); 1121 } 1122 1123 /* 1124 * Note that the current msg position is where messages start. 1125 */ 1126 void 1127 msg_starthere() 1128 { 1129 lines_left = cmdline_row; 1130 msg_didany = FALSE; 1131 } 1132 1133 void 1134 msg_putchar(c) 1135 int c; 1136 { 1137 msg_putchar_attr(c, 0); 1138 } 1139 1140 void 1141 msg_putchar_attr(c, attr) 1142 int c; 1143 int attr; 1144 { 1145 #ifdef FEAT_MBYTE 1146 char_u buf[MB_MAXBYTES + 1]; 1147 #else 1148 char_u buf[4]; 1149 #endif 1150 1151 if (IS_SPECIAL(c)) 1152 { 1153 buf[0] = K_SPECIAL; 1154 buf[1] = K_SECOND(c); 1155 buf[2] = K_THIRD(c); 1156 buf[3] = NUL; 1157 } 1158 else 1159 { 1160 #ifdef FEAT_MBYTE 1161 buf[(*mb_char2bytes)(c, buf)] = NUL; 1162 #else 1163 buf[0] = c; 1164 buf[1] = NUL; 1165 #endif 1166 } 1167 msg_puts_attr(buf, attr); 1168 } 1169 1170 void 1171 msg_outnum(n) 1172 long n; 1173 { 1174 char_u buf[20]; 1175 1176 sprintf((char *)buf, "%ld", n); 1177 msg_puts(buf); 1178 } 1179 1180 void 1181 msg_home_replace(fname) 1182 char_u *fname; 1183 { 1184 msg_home_replace_attr(fname, 0); 1185 } 1186 1187 #if defined(FEAT_FIND_ID) || defined(PROTO) 1188 void 1189 msg_home_replace_hl(fname) 1190 char_u *fname; 1191 { 1192 msg_home_replace_attr(fname, hl_attr(HLF_D)); 1193 } 1194 #endif 1195 1196 static void 1197 msg_home_replace_attr(fname, attr) 1198 char_u *fname; 1199 int attr; 1200 { 1201 char_u *name; 1202 1203 name = home_replace_save(NULL, fname); 1204 if (name != NULL) 1205 msg_outtrans_attr(name, attr); 1206 vim_free(name); 1207 } 1208 1209 /* 1210 * Output 'len' characters in 'str' (including NULs) with translation 1211 * if 'len' is -1, output upto a NUL character. 1212 * Use attributes 'attr'. 1213 * Return the number of characters it takes on the screen. 1214 */ 1215 int 1216 msg_outtrans(str) 1217 char_u *str; 1218 { 1219 return msg_outtrans_attr(str, 0); 1220 } 1221 1222 int 1223 msg_outtrans_attr(str, attr) 1224 char_u *str; 1225 int attr; 1226 { 1227 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1228 } 1229 1230 int 1231 msg_outtrans_len(str, len) 1232 char_u *str; 1233 int len; 1234 { 1235 return msg_outtrans_len_attr(str, len, 0); 1236 } 1237 1238 /* 1239 * Output one character at "p". Return pointer to the next character. 1240 * Handles multi-byte characters. 1241 */ 1242 char_u * 1243 msg_outtrans_one(p, attr) 1244 char_u *p; 1245 int attr; 1246 { 1247 #ifdef FEAT_MBYTE 1248 int l; 1249 1250 if (has_mbyte && (l = (*mb_ptr2len_check)(p)) > 1) 1251 { 1252 msg_outtrans_len_attr(p, l, attr); 1253 return p + l; 1254 } 1255 #endif 1256 msg_puts_attr(transchar_byte(*p), attr); 1257 return p + 1; 1258 } 1259 1260 int 1261 msg_outtrans_len_attr(msgstr, len, attr) 1262 char_u *msgstr; 1263 int len; 1264 int attr; 1265 { 1266 int retval = 0; 1267 char_u *str = msgstr; 1268 char_u *plain_start = msgstr; 1269 char_u *s; 1270 #ifdef FEAT_MBYTE 1271 int mb_l; 1272 int c; 1273 #endif 1274 1275 /* if MSG_HIST flag set, add message to history */ 1276 if (attr & MSG_HIST) 1277 { 1278 add_msg_hist(str, len, attr); 1279 attr &= ~MSG_HIST; 1280 } 1281 1282 #ifdef FEAT_MBYTE 1283 /* If the string starts with a composing character first draw a space on 1284 * which the composing char can be drawn. */ 1285 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1286 msg_puts_attr((char_u *)" ", attr); 1287 #endif 1288 1289 /* 1290 * Go over the string. Special characters are translated and printed. 1291 * Normal characters are printed several at a time. 1292 */ 1293 while (--len >= 0) 1294 { 1295 #ifdef FEAT_MBYTE 1296 if (enc_utf8) 1297 /* Don't include composing chars after the end. */ 1298 mb_l = utfc_ptr2len_check_len(str, len + 1); 1299 else if (has_mbyte) 1300 mb_l = (*mb_ptr2len_check)(str); 1301 else 1302 mb_l = 1; 1303 if (has_mbyte && mb_l > 1) 1304 { 1305 c = (*mb_ptr2char)(str); 1306 if (vim_isprintc(c)) 1307 /* printable multi-byte char: count the cells. */ 1308 retval += (*mb_ptr2cells)(str); 1309 else 1310 { 1311 /* unprintable multi-byte char: print the printable chars so 1312 * far and the translation of the unprintable char. */ 1313 if (str > plain_start) 1314 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1315 attr); 1316 plain_start = str + mb_l; 1317 msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr); 1318 retval += char2cells(c); 1319 } 1320 len -= mb_l - 1; 1321 str += mb_l; 1322 } 1323 else 1324 #endif 1325 { 1326 s = transchar_byte(*str); 1327 if (s[1] != NUL) 1328 { 1329 /* unprintable char: print the printable chars so far and the 1330 * translation of the unprintable char. */ 1331 if (str > plain_start) 1332 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1333 attr); 1334 plain_start = str + 1; 1335 msg_puts_attr(s, attr == 0 ? hl_attr(HLF_8) : attr); 1336 } 1337 retval += ptr2cells(str); 1338 ++str; 1339 } 1340 } 1341 1342 if (str > plain_start) 1343 /* print the printable chars at the end */ 1344 msg_puts_attr_len(plain_start, (int)(str - plain_start), attr); 1345 1346 return retval; 1347 } 1348 1349 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1350 void 1351 msg_make(arg) 1352 char_u *arg; 1353 { 1354 int i; 1355 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1356 1357 arg = skipwhite(arg); 1358 for (i = 5; *arg && i >= 0; --i) 1359 if (*arg++ != str[i]) 1360 break; 1361 if (i < 0) 1362 { 1363 msg_putchar('\n'); 1364 for (i = 0; rs[i]; ++i) 1365 msg_putchar(rs[i] - 3); 1366 } 1367 } 1368 #endif 1369 1370 /* 1371 * Output the string 'str' upto a NUL character. 1372 * Return the number of characters it takes on the screen. 1373 * 1374 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1375 * following character and shown as <F1>, <S-Up> etc. Any other character 1376 * which is not printable shown in <> form. 1377 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1378 * If a character is displayed in one of these special ways, is also 1379 * highlighted (its highlight name is '8' in the p_hl variable). 1380 * Otherwise characters are not highlighted. 1381 * This function is used to show mappings, where we want to see how to type 1382 * the character/string -- webb 1383 */ 1384 int 1385 msg_outtrans_special(strstart, from) 1386 char_u *strstart; 1387 int from; /* TRUE for lhs of a mapping */ 1388 { 1389 char_u *str = strstart; 1390 int retval = 0; 1391 char_u *string; 1392 int attr; 1393 int len; 1394 1395 attr = hl_attr(HLF_8); 1396 while (*str != NUL) 1397 { 1398 /* Leading and trailing spaces need to be displayed in <> form. */ 1399 if ((str == strstart || str[1] == NUL) && *str == ' ') 1400 { 1401 string = (char_u *)"<Space>"; 1402 ++str; 1403 } 1404 else 1405 string = str2special(&str, from); 1406 len = vim_strsize(string); 1407 /* Highlight special keys */ 1408 msg_puts_attr(string, len > 1 1409 #ifdef FEAT_MBYTE 1410 && (*mb_ptr2len_check)(string) <= 1 1411 #endif 1412 ? attr : 0); 1413 retval += len; 1414 } 1415 return retval; 1416 } 1417 1418 /* 1419 * Return the printable string for the key codes at "*sp". 1420 * Used for translating the lhs or rhs of a mapping to printable chars. 1421 * Advances "sp" to the next code. 1422 */ 1423 char_u * 1424 str2special(sp, from) 1425 char_u **sp; 1426 int from; /* TRUE for lhs of mapping */ 1427 { 1428 int c; 1429 static char_u buf[7]; 1430 char_u *str = *sp; 1431 int modifiers = 0; 1432 int special = FALSE; 1433 1434 #ifdef FEAT_MBYTE 1435 if (has_mbyte) 1436 { 1437 char_u *p; 1438 1439 /* Try to un-escape a multi-byte character. Return the un-escaped 1440 * string if it is a multi-byte character. */ 1441 p = mb_unescape(sp); 1442 if (p != NULL) 1443 return p; 1444 } 1445 #endif 1446 1447 c = *str; 1448 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1449 { 1450 if (str[1] == KS_MODIFIER) 1451 { 1452 modifiers = str[2]; 1453 str += 3; 1454 c = *str; 1455 } 1456 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1457 { 1458 c = TO_SPECIAL(str[1], str[2]); 1459 str += 2; 1460 if (c == K_ZERO) /* display <Nul> as ^@ */ 1461 c = NUL; 1462 } 1463 if (IS_SPECIAL(c) || modifiers) /* special key */ 1464 special = TRUE; 1465 } 1466 *sp = str + 1; 1467 1468 #ifdef FEAT_MBYTE 1469 /* For multi-byte characters check for an illegal byte. */ 1470 if (has_mbyte && MB_BYTE2LEN(*str) > (*mb_ptr2len_check)(str)) 1471 { 1472 transchar_nonprint(buf, c); 1473 return buf; 1474 } 1475 #endif 1476 1477 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1478 * Use <Space> only for lhs of a mapping. */ 1479 if (special || char2cells(c) > 1 || (from && c == ' ')) 1480 return get_special_key_name(c, modifiers); 1481 buf[0] = c; 1482 buf[1] = NUL; 1483 return buf; 1484 } 1485 1486 /* 1487 * Translate a key sequence into special key names. 1488 */ 1489 void 1490 str2specialbuf(sp, buf, len) 1491 char_u *sp; 1492 char_u *buf; 1493 int len; 1494 { 1495 char_u *s; 1496 1497 *buf = NUL; 1498 while (*sp) 1499 { 1500 s = str2special(&sp, FALSE); 1501 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1502 STRCAT(buf, s); 1503 } 1504 } 1505 1506 /* 1507 * print line for :print or :list command 1508 */ 1509 void 1510 msg_prt_line(s, list) 1511 char_u *s; 1512 int list; 1513 { 1514 int c; 1515 int col = 0; 1516 int n_extra = 0; 1517 int c_extra = 0; 1518 char_u *p_extra = NULL; /* init to make SASC shut up */ 1519 int n; 1520 int attr= 0; 1521 char_u *trail = NULL; 1522 #ifdef FEAT_MBYTE 1523 int l; 1524 char_u buf[MB_MAXBYTES + 1]; 1525 #endif 1526 1527 if (curwin->w_p_list) 1528 list = TRUE; 1529 1530 /* find start of trailing whitespace */ 1531 if (list && lcs_trail) 1532 { 1533 trail = s + STRLEN(s); 1534 while (trail > s && vim_iswhite(trail[-1])) 1535 --trail; 1536 } 1537 1538 /* output a space for an empty line, otherwise the line will be 1539 * overwritten */ 1540 if (*s == NUL && !(list && lcs_eol != NUL)) 1541 msg_putchar(' '); 1542 1543 while (!got_int) 1544 { 1545 if (n_extra) 1546 { 1547 --n_extra; 1548 if (c_extra) 1549 c = c_extra; 1550 else 1551 c = *p_extra++; 1552 } 1553 #ifdef FEAT_MBYTE 1554 else if (has_mbyte && (l = (*mb_ptr2len_check)(s)) > 1) 1555 { 1556 col += (*mb_ptr2cells)(s); 1557 mch_memmove(buf, s, (size_t)l); 1558 buf[l] = NUL; 1559 msg_puts_attr(buf, attr); 1560 s += l; 1561 continue; 1562 } 1563 #endif 1564 else 1565 { 1566 attr = 0; 1567 c = *s++; 1568 if (c == TAB && (!list || lcs_tab1)) 1569 { 1570 /* tab amount depends on current column */ 1571 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1572 if (!list) 1573 { 1574 c = ' '; 1575 c_extra = ' '; 1576 } 1577 else 1578 { 1579 c = lcs_tab1; 1580 c_extra = lcs_tab2; 1581 attr = hl_attr(HLF_8); 1582 } 1583 } 1584 else if (c == NUL && list && lcs_eol != NUL) 1585 { 1586 p_extra = (char_u *)""; 1587 c_extra = NUL; 1588 n_extra = 1; 1589 c = lcs_eol; 1590 attr = hl_attr(HLF_AT); 1591 --s; 1592 } 1593 else if (c != NUL && (n = byte2cells(c)) > 1) 1594 { 1595 n_extra = n - 1; 1596 p_extra = transchar_byte(c); 1597 c_extra = NUL; 1598 c = *p_extra++; 1599 } 1600 else if (c == ' ' && trail != NULL && s > trail) 1601 { 1602 c = lcs_trail; 1603 attr = hl_attr(HLF_8); 1604 } 1605 } 1606 1607 if (c == NUL) 1608 break; 1609 1610 msg_putchar_attr(c, attr); 1611 col++; 1612 } 1613 msg_clr_eos(); 1614 } 1615 1616 #ifdef FEAT_MBYTE 1617 /* 1618 * Use screen_puts() to output one multi-byte character. 1619 * Return the pointer "s" advanced to the next character. 1620 */ 1621 static char_u * 1622 screen_puts_mbyte(s, l, attr) 1623 char_u *s; 1624 int l; 1625 int attr; 1626 { 1627 int cw; 1628 1629 msg_didout = TRUE; /* remember that line is not empty */ 1630 cw = (*mb_ptr2cells)(s); 1631 if (cw > 1 && ( 1632 #ifdef FEAT_RIGHTLEFT 1633 cmdmsg_rl ? msg_col <= 1 : 1634 #endif 1635 msg_col == Columns - 1)) 1636 { 1637 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1638 msg_screen_putchar('>', hl_attr(HLF_AT)); 1639 return s; 1640 } 1641 1642 screen_puts_len(s, l, msg_row, msg_col, attr); 1643 #ifdef FEAT_RIGHTLEFT 1644 if (cmdmsg_rl) 1645 { 1646 msg_col -= cw; 1647 if (msg_col == 0) 1648 { 1649 msg_col = Columns; 1650 ++msg_row; 1651 } 1652 } 1653 else 1654 #endif 1655 { 1656 msg_col += cw; 1657 if (msg_col >= Columns) 1658 { 1659 msg_col = 0; 1660 ++msg_row; 1661 } 1662 } 1663 return s + l; 1664 } 1665 #endif 1666 1667 /* 1668 * Output a string to the screen at position msg_row, msg_col. 1669 * Update msg_row and msg_col for the next message. 1670 */ 1671 void 1672 msg_puts(s) 1673 char_u *s; 1674 { 1675 msg_puts_attr(s, 0); 1676 } 1677 1678 void 1679 msg_puts_title(s) 1680 char_u *s; 1681 { 1682 msg_puts_attr(s, hl_attr(HLF_T)); 1683 } 1684 1685 /* 1686 * Show a message in such a way that it always fits in the line. Cut out a 1687 * part in the middle and replace it with "..." when necessary. 1688 * Does not handle multi-byte characters! 1689 */ 1690 void 1691 msg_puts_long_attr(longstr, attr) 1692 char_u *longstr; 1693 int attr; 1694 { 1695 msg_puts_long_len_attr(longstr, (int)strlen((char *)longstr), attr); 1696 } 1697 1698 void 1699 msg_puts_long_len_attr(longstr, len, attr) 1700 char_u *longstr; 1701 int len; 1702 int attr; 1703 { 1704 int slen = len; 1705 int room; 1706 1707 room = Columns - msg_col; 1708 if (len > room && room >= 20) 1709 { 1710 slen = (room - 3) / 2; 1711 msg_outtrans_len_attr(longstr, slen, attr); 1712 msg_puts_attr((char_u *)"...", hl_attr(HLF_8)); 1713 } 1714 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 1715 } 1716 1717 /* 1718 * Basic function for writing a message with highlight attributes. 1719 */ 1720 void 1721 msg_puts_attr(s, attr) 1722 char_u *s; 1723 int attr; 1724 { 1725 msg_puts_attr_len(s, -1, attr); 1726 } 1727 1728 /* 1729 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 1730 * When "maxlen" is -1 there is no maximum length. 1731 * When "maxlen" is >= 0 the message is not put in the history. 1732 */ 1733 static void 1734 msg_puts_attr_len(str, maxlen, attr) 1735 char_u *str; 1736 int maxlen; 1737 int attr; 1738 { 1739 /* 1740 * If redirection is on, also write to the redirection file. 1741 */ 1742 redir_write(str, maxlen); 1743 1744 /* 1745 * Don't print anything when using ":silent cmd". 1746 */ 1747 if (msg_silent != 0) 1748 return; 1749 1750 /* if MSG_HIST flag set, add message to history */ 1751 if ((attr & MSG_HIST) && maxlen < 0) 1752 { 1753 add_msg_hist(str, -1, attr); 1754 attr &= ~MSG_HIST; 1755 } 1756 1757 /* 1758 * When writing something to the screen after it has scrolled, requires a 1759 * wait-return prompt later. Needed when scrolling, resetting 1760 * need_wait_return after some prompt, and then outputting something 1761 * without scrolling 1762 */ 1763 if (msg_scrolled && !msg_scrolled_ign) 1764 need_wait_return = TRUE; 1765 msg_didany = TRUE; /* remember that something was outputted */ 1766 1767 /* 1768 * If there is no valid screen, use fprintf so we can see error messages. 1769 * If termcap is not active, we may be writing in an alternate console 1770 * window, cursor positioning may not work correctly (window size may be 1771 * different, e.g. for Win32 console) or we just don't know where the 1772 * cursor is. 1773 */ 1774 if (msg_use_printf()) 1775 msg_puts_printf(str, maxlen); 1776 else 1777 msg_puts_display(str, maxlen, attr, FALSE); 1778 } 1779 1780 /* 1781 * The display part of msg_puts_attr_len(). 1782 * May be called recursively to display scroll-back text. 1783 */ 1784 static void 1785 msg_puts_display(str, maxlen, attr, recurse) 1786 char_u *str; 1787 int maxlen; 1788 int attr; 1789 int recurse; 1790 { 1791 char_u *s = str; 1792 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 1793 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 1794 #ifdef FEAT_MBYTE 1795 int l; 1796 int cw; 1797 #endif 1798 char_u *sb_str = str; 1799 int sb_col = msg_col; 1800 int wrap; 1801 1802 did_wait_return = FALSE; 1803 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 1804 { 1805 /* 1806 * We are at the end of the screen line when: 1807 * - When outputting a newline. 1808 * - When outputting a character in the last column. 1809 */ 1810 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 1811 #ifdef FEAT_RIGHTLEFT 1812 cmdmsg_rl 1813 ? ( 1814 msg_col <= 1 1815 || (*s == TAB && msg_col <= 7) 1816 # ifdef FEAT_MBYTE 1817 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2) 1818 # endif 1819 ) 1820 : 1821 #endif 1822 (msg_col + t_col >= Columns - 1 1823 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 1824 # ifdef FEAT_MBYTE 1825 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1826 && msg_col + t_col >= Columns - 2) 1827 # endif 1828 )))) 1829 { 1830 /* 1831 * The screen is scrolled up when at the last row (some terminals 1832 * scroll automatically, some don't. To avoid problems we scroll 1833 * ourselves). 1834 */ 1835 if (t_col > 0) 1836 /* output postponed text */ 1837 t_puts(&t_col, t_s, s, attr); 1838 1839 /* When no more prompt an no more room, truncate here */ 1840 if (msg_no_more && lines_left == 0) 1841 break; 1842 1843 /* Scroll the screen up one line. */ 1844 msg_scroll_up(); 1845 1846 msg_row = Rows - 2; 1847 if (msg_col >= Columns) /* can happen after screen resize */ 1848 msg_col = Columns - 1; 1849 1850 /* Display char in last column before showing more-prompt. */ 1851 if (*s >= ' ' 1852 #ifdef FEAT_RIGHTLEFT 1853 && !cmdmsg_rl 1854 #endif 1855 ) 1856 { 1857 #ifdef FEAT_MBYTE 1858 if (has_mbyte) 1859 { 1860 if (enc_utf8 && maxlen >= 0) 1861 /* avoid including composing chars after the end */ 1862 l = utfc_ptr2len_check_len(s, 1863 (int)((str + maxlen) - s)); 1864 else 1865 l = (*mb_ptr2len_check)(s); 1866 s = screen_puts_mbyte(s, l, attr); 1867 } 1868 else 1869 #endif 1870 msg_screen_putchar(*s++, attr); 1871 } 1872 1873 if (p_more) 1874 /* store text for scrolling back */ 1875 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1876 1877 ++msg_scrolled; 1878 need_wait_return = TRUE; /* may need wait_return in main() */ 1879 if (must_redraw < VALID) 1880 must_redraw = VALID; 1881 redraw_cmdline = TRUE; 1882 if (cmdline_row > 0 && !exmode_active) 1883 --cmdline_row; 1884 1885 /* 1886 * If screen is completely filled and 'more' is set then wait 1887 * for a character. 1888 */ 1889 if (p_more && --lines_left == 0 && State != HITRETURN 1890 && !msg_no_more && !exmode_active) 1891 { 1892 #ifdef FEAT_CON_DIALOG 1893 if (do_more_prompt(NUL)) 1894 s = confirm_msg_tail; 1895 #else 1896 (void)do_more_prompt(NUL); 1897 #endif 1898 if (quit_more) 1899 return; 1900 } 1901 } 1902 1903 wrap = *s == '\n' 1904 || msg_col + t_col >= Columns 1905 #ifdef FEAT_MBYTE 1906 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1907 && msg_col + t_col >= Columns - 1) 1908 #endif 1909 ; 1910 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 1911 || *s == '\t' || *s == BELL)) 1912 /* output any postponed text */ 1913 t_puts(&t_col, t_s, s, attr); 1914 1915 if (wrap && p_more && !recurse) 1916 /* store text for scrolling back */ 1917 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1918 1919 if (*s == '\n') /* go to next line */ 1920 { 1921 msg_didout = FALSE; /* remember that line is empty */ 1922 msg_col = 0; 1923 if (++msg_row >= Rows) /* safety check */ 1924 msg_row = Rows - 1; 1925 } 1926 else if (*s == '\r') /* go to column 0 */ 1927 { 1928 msg_col = 0; 1929 } 1930 else if (*s == '\b') /* go to previous char */ 1931 { 1932 if (msg_col) 1933 --msg_col; 1934 } 1935 else if (*s == TAB) /* translate Tab into spaces */ 1936 { 1937 do 1938 msg_screen_putchar(' ', attr); 1939 while (msg_col & 7); 1940 } 1941 else if (*s == BELL) /* beep (from ":sh") */ 1942 vim_beep(); 1943 else 1944 { 1945 #ifdef FEAT_MBYTE 1946 if (has_mbyte) 1947 { 1948 cw = (*mb_ptr2cells)(s); 1949 if (enc_utf8 && maxlen >= 0) 1950 /* avoid including composing chars after the end */ 1951 l = utfc_ptr2len_check_len(s, (int)((str + maxlen) - s)); 1952 else 1953 l = (*mb_ptr2len_check)(s); 1954 } 1955 else 1956 { 1957 cw = 1; 1958 l = 1; 1959 } 1960 #endif 1961 /* When drawing from right to left or when a double-wide character 1962 * doesn't fit, draw a single character here. Otherwise collect 1963 * characters and draw them all at once later. */ 1964 #if defined(FEAT_RIGHTLEFT) || defined(FEAT_MBYTE) 1965 if ( 1966 # ifdef FEAT_RIGHTLEFT 1967 cmdmsg_rl 1968 # ifdef FEAT_MBYTE 1969 || 1970 # endif 1971 # endif 1972 # ifdef FEAT_MBYTE 1973 (cw > 1 && msg_col + t_col >= Columns - 1) 1974 # endif 1975 ) 1976 { 1977 # ifdef FEAT_MBYTE 1978 if (l > 1) 1979 s = screen_puts_mbyte(s, l, attr) - 1; 1980 else 1981 # endif 1982 msg_screen_putchar(*s, attr); 1983 } 1984 else 1985 #endif 1986 { 1987 /* postpone this character until later */ 1988 if (t_col == 0) 1989 t_s = s; 1990 #ifdef FEAT_MBYTE 1991 t_col += cw; 1992 s += l - 1; 1993 #else 1994 ++t_col; 1995 #endif 1996 } 1997 } 1998 ++s; 1999 } 2000 2001 /* output any postponed text */ 2002 if (t_col > 0) 2003 t_puts(&t_col, t_s, s, attr); 2004 if (p_more && !recurse) 2005 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2006 2007 msg_check(); 2008 } 2009 2010 /* 2011 * Scroll the screen up one line for displaying the next message line. 2012 */ 2013 static void 2014 msg_scroll_up() 2015 { 2016 #ifdef FEAT_GUI 2017 /* Remove the cursor before scrolling, ScreenLines[] is going 2018 * to become invalid. */ 2019 if (gui.in_use) 2020 gui_undraw_cursor(); 2021 #endif 2022 /* scrolling up always works */ 2023 screen_del_lines(0, 0, 1, (int)Rows, TRUE, NULL); 2024 2025 if (!can_clear((char_u *)" ")) 2026 { 2027 /* Scrolling up doesn't result in the right background. Set the 2028 * background here. It's not efficient, but avoids that we have to do 2029 * it all over the code. */ 2030 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2031 2032 /* Also clear the last char of the last but one line if it was not 2033 * cleared before to avoid a scroll-up. */ 2034 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2035 screen_fill((int)Rows - 2, (int)Rows - 1, 2036 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2037 } 2038 } 2039 2040 /* 2041 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2042 * store the displayed text and remember where screen lines start. 2043 */ 2044 typedef struct msgchunk_S msgchunk_T; 2045 struct msgchunk_S 2046 { 2047 msgchunk_T *sb_next; 2048 msgchunk_T *sb_prev; 2049 char sb_eol; /* TRUE when line ends after this text */ 2050 int sb_msg_col; /* column in which text starts */ 2051 int sb_attr; /* text attributes */ 2052 char_u sb_text[1]; /* text to be displayed, actually longer */ 2053 }; 2054 2055 static msgchunk_T *last_msgchunk = NULL; /* last displayed text */ 2056 2057 static msgchunk_T *msg_sb_start __ARGS((msgchunk_T *mps)); 2058 static msgchunk_T *disp_sb_line __ARGS((int row, msgchunk_T *smp)); 2059 2060 static int do_clear_sb_text = FALSE; /* clear text on next msg */ 2061 2062 /* 2063 * Store part of a printed message for displaying when scrolling back. 2064 */ 2065 static void 2066 store_sb_text(sb_str, s, attr, sb_col, finish) 2067 char_u **sb_str; /* start of string */ 2068 char_u *s; /* just after string */ 2069 int attr; 2070 int *sb_col; 2071 int finish; /* line ends */ 2072 { 2073 msgchunk_T *mp; 2074 2075 if (do_clear_sb_text) 2076 { 2077 clear_sb_text(); 2078 do_clear_sb_text = FALSE; 2079 } 2080 2081 if (s > *sb_str) 2082 { 2083 mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str))); 2084 if (mp != NULL) 2085 { 2086 mp->sb_eol = finish; 2087 mp->sb_msg_col = *sb_col; 2088 mp->sb_attr = attr; 2089 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2090 2091 if (last_msgchunk == NULL) 2092 { 2093 last_msgchunk = mp; 2094 mp->sb_prev = NULL; 2095 } 2096 else 2097 { 2098 mp->sb_prev = last_msgchunk; 2099 last_msgchunk->sb_next = mp; 2100 last_msgchunk = mp; 2101 } 2102 mp->sb_next = NULL; 2103 } 2104 } 2105 else if (finish && last_msgchunk != NULL) 2106 last_msgchunk->sb_eol = TRUE; 2107 2108 *sb_str = s; 2109 *sb_col = 0; 2110 } 2111 2112 /* 2113 * Finished showing messages, clear the scroll-back text on the next message. 2114 */ 2115 void 2116 may_clear_sb_text() 2117 { 2118 do_clear_sb_text = TRUE; 2119 } 2120 2121 /* 2122 * Clear any text remembered for scrolling back. 2123 * Called when redrawing the screen. 2124 */ 2125 void 2126 clear_sb_text() 2127 { 2128 msgchunk_T *mp; 2129 2130 while (last_msgchunk != NULL) 2131 { 2132 mp = last_msgchunk->sb_prev; 2133 vim_free(last_msgchunk); 2134 last_msgchunk = mp; 2135 } 2136 last_msgchunk = NULL; 2137 } 2138 2139 /* 2140 * "g<" command. 2141 */ 2142 void 2143 show_sb_text() 2144 { 2145 msgchunk_T *mp; 2146 2147 /* Only show somethign if there is more than one line, otherwise it looks 2148 * weird, typing a command without output results in one line. */ 2149 mp = msg_sb_start(last_msgchunk); 2150 if (mp == NULL || mp->sb_prev == NULL) 2151 vim_beep(); 2152 else 2153 { 2154 do_more_prompt('G'); 2155 wait_return(FALSE); 2156 } 2157 } 2158 2159 /* 2160 * Move to the start of screen line in already displayed text. 2161 */ 2162 static msgchunk_T * 2163 msg_sb_start(mps) 2164 msgchunk_T *mps; 2165 { 2166 msgchunk_T *mp = mps; 2167 2168 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2169 mp = mp->sb_prev; 2170 return mp; 2171 } 2172 2173 /* 2174 * Display a screen line from previously displayed text at row "row". 2175 * Returns a pointer to the text for the next line (can be NULL). 2176 */ 2177 static msgchunk_T * 2178 disp_sb_line(row, smp) 2179 int row; 2180 msgchunk_T *smp; 2181 { 2182 msgchunk_T *mp = smp; 2183 char_u *p; 2184 2185 for (;;) 2186 { 2187 msg_row = row; 2188 msg_col = mp->sb_msg_col; 2189 p = mp->sb_text; 2190 if (*p == '\n') /* don't display the line break */ 2191 ++p; 2192 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2193 if (mp->sb_eol || mp->sb_next == NULL) 2194 break; 2195 mp = mp->sb_next; 2196 } 2197 return mp->sb_next; 2198 } 2199 2200 /* 2201 * Output any postponed text for msg_puts_attr_len(). 2202 */ 2203 static void 2204 t_puts(t_col, t_s, s, attr) 2205 int *t_col; 2206 char_u *t_s; 2207 char_u *s; 2208 int attr; 2209 { 2210 /* output postponed text */ 2211 msg_didout = TRUE; /* remember that line is not empty */ 2212 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2213 msg_col += *t_col; 2214 *t_col = 0; 2215 #ifdef FEAT_MBYTE 2216 /* If the string starts with a composing character don't increment the 2217 * column position for it. */ 2218 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2219 --msg_col; 2220 #endif 2221 if (msg_col >= Columns) 2222 { 2223 msg_col = 0; 2224 ++msg_row; 2225 } 2226 } 2227 2228 /* 2229 * Returns TRUE when messages should be printed with mch_errmsg(). 2230 * This is used when there is no valid screen, so we can see error messages. 2231 * If termcap is not active, we may be writing in an alternate console 2232 * window, cursor positioning may not work correctly (window size may be 2233 * different, e.g. for Win32 console) or we just don't know where the 2234 * cursor is. 2235 */ 2236 int 2237 msg_use_printf() 2238 { 2239 return (!msg_check_screen() 2240 #if defined(WIN3264) && !defined(FEAT_GUI_MSWIN) 2241 || !termcap_active 2242 #endif 2243 || (swapping_screen() && !termcap_active) 2244 ); 2245 } 2246 2247 /* 2248 * Print a message when there is no valid screen. 2249 */ 2250 static void 2251 msg_puts_printf(str, maxlen) 2252 char_u *str; 2253 int maxlen; 2254 { 2255 char_u *s = str; 2256 char_u buf[4]; 2257 char_u *p; 2258 2259 #ifdef WIN3264 2260 if (!(silent_mode && p_verbose == 0)) 2261 mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */ 2262 #endif 2263 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 2264 { 2265 if (!(silent_mode && p_verbose == 0)) 2266 { 2267 /* NL --> CR NL translation (for Unix, not for "--version") */ 2268 /* NL --> CR translation (for Mac) */ 2269 p = &buf[0]; 2270 if (*s == '\n' && !info_message) 2271 *p++ = '\r'; 2272 #if defined(USE_CR) && !defined(MACOS_X_UNIX) 2273 else 2274 #endif 2275 *p++ = *s; 2276 *p = '\0'; 2277 if (info_message) /* informative message, not an error */ 2278 mch_msg((char *)buf); 2279 else 2280 mch_errmsg((char *)buf); 2281 } 2282 2283 /* primitive way to compute the current column */ 2284 #ifdef FEAT_RIGHTLEFT 2285 if (cmdmsg_rl) 2286 { 2287 if (*s == '\r' || *s == '\n') 2288 msg_col = Columns - 1; 2289 else 2290 --msg_col; 2291 } 2292 else 2293 #endif 2294 { 2295 if (*s == '\r' || *s == '\n') 2296 msg_col = 0; 2297 else 2298 ++msg_col; 2299 } 2300 ++s; 2301 } 2302 msg_didout = TRUE; /* assume that line is not empty */ 2303 2304 #ifdef WIN3264 2305 if (!(silent_mode && p_verbose == 0)) 2306 mch_settmode(TMODE_RAW); 2307 #endif 2308 } 2309 2310 /* 2311 * Show the more-prompt and handle the user response. 2312 * This takes care of scrolling back and displaying previously displayed text. 2313 * When at hit-enter prompt "typed_char" is the already typed character, 2314 * otherwise it's NUL. 2315 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2316 */ 2317 static int 2318 do_more_prompt(typed_char) 2319 int typed_char; 2320 { 2321 int used_typed_char = typed_char; 2322 int oldState = State; 2323 int c; 2324 #ifdef FEAT_CON_DIALOG 2325 int retval = FALSE; 2326 #endif 2327 int scroll; 2328 msgchunk_T *mp_last = NULL; 2329 msgchunk_T *mp; 2330 int i; 2331 2332 if (typed_char == 'G') 2333 { 2334 /* "g<": Find first line on the last page. */ 2335 mp_last = msg_sb_start(last_msgchunk); 2336 for (i = 0; i < Rows - 2 && mp_last != NULL 2337 && mp_last->sb_prev != NULL; ++i) 2338 mp_last = msg_sb_start(mp_last->sb_prev); 2339 } 2340 2341 State = ASKMORE; 2342 #ifdef FEAT_MOUSE 2343 setmouse(); 2344 #endif 2345 if (typed_char == NUL) 2346 msg_moremsg(FALSE); 2347 for (;;) 2348 { 2349 /* 2350 * Get a typed character directly from the user. 2351 */ 2352 if (used_typed_char != NUL) 2353 { 2354 c = used_typed_char; /* was typed at hit-enter prompt */ 2355 used_typed_char = NUL; 2356 } 2357 else 2358 c = get_keystroke(); 2359 2360 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2361 if (c == K_MENU) 2362 { 2363 int idx = get_menu_index(current_menu, ASKMORE); 2364 2365 /* Used a menu. If it starts with CTRL-Y, it must 2366 * be a "Copy" for the clipboard. Otherwise 2367 * assume that we end */ 2368 if (idx == MENU_INDEX_INVALID) 2369 continue; 2370 c = *current_menu->strings[idx]; 2371 if (c != NUL && current_menu->strings[idx][1] != NUL) 2372 ins_typebuf(current_menu->strings[idx] + 1, 2373 current_menu->noremap[idx], 0, TRUE, 2374 current_menu->silent[idx]); 2375 } 2376 #endif 2377 2378 scroll = 0; 2379 switch (c) 2380 { 2381 case BS: /* scroll one line back */ 2382 case K_BS: 2383 case 'k': 2384 case K_UP: 2385 scroll = -1; 2386 break; 2387 2388 case CAR: /* one extra line */ 2389 case NL: 2390 case 'j': 2391 case K_DOWN: 2392 scroll = 1; 2393 break; 2394 2395 case 'u': /* Up half a page */ 2396 case K_PAGEUP: 2397 scroll = -(Rows / 2); 2398 break; 2399 2400 case 'd': /* Down half a page */ 2401 scroll = Rows / 2; 2402 break; 2403 2404 case 'b': /* one page back */ 2405 scroll = -(Rows - 1); 2406 break; 2407 2408 case ' ': /* one extra page */ 2409 case K_PAGEDOWN: 2410 case K_LEFTMOUSE: 2411 scroll = Rows - 1; 2412 break; 2413 2414 case 'g': /* all the way back to the start */ 2415 scroll = -999999; 2416 break; 2417 2418 case 'G': /* all the way to the end */ 2419 scroll = 999999; 2420 lines_left = 999999; 2421 break; 2422 2423 case ':': /* start new command line */ 2424 #ifdef FEAT_CON_DIALOG 2425 if (!confirm_msg_used) 2426 #endif 2427 { 2428 /* Since got_int is set all typeahead will be flushed, but we 2429 * want to keep this ':', remember that in a special way. */ 2430 typeahead_noflush(':'); 2431 cmdline_row = Rows - 1; /* put ':' on this line */ 2432 skip_redraw = TRUE; /* skip redraw once */ 2433 need_wait_return = FALSE; /* don't wait in main() */ 2434 } 2435 /*FALLTHROUGH*/ 2436 case 'q': /* quit */ 2437 case Ctrl_C: 2438 case ESC: 2439 #ifdef FEAT_CON_DIALOG 2440 if (confirm_msg_used) 2441 { 2442 /* Jump to the choices of the dialog. */ 2443 retval = TRUE; 2444 lines_left = Rows - 1; 2445 } 2446 else 2447 #endif 2448 { 2449 got_int = TRUE; 2450 quit_more = TRUE; 2451 } 2452 break; 2453 2454 #ifdef FEAT_CLIPBOARD 2455 case Ctrl_Y: 2456 /* Strange way to allow copying (yanking) a modeless 2457 * selection at the more prompt. Use CTRL-Y, 2458 * because the same is used in Cmdline-mode and at the 2459 * hit-enter prompt. However, scrolling one line up 2460 * might be expected... */ 2461 if (clip_star.state == SELECT_DONE) 2462 clip_copy_modeless_selection(TRUE); 2463 continue; 2464 #endif 2465 default: /* no valid response */ 2466 msg_moremsg(TRUE); 2467 continue; 2468 } 2469 2470 if (scroll != 0) 2471 { 2472 if (scroll < 0) 2473 { 2474 /* go to start of last line */ 2475 if (mp_last == NULL) 2476 mp = msg_sb_start(last_msgchunk); 2477 else if (mp_last->sb_prev != NULL) 2478 mp = msg_sb_start(mp_last->sb_prev); 2479 else 2480 mp = NULL; 2481 2482 /* go to start of line at top of the screen */ 2483 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2484 ++i) 2485 mp = msg_sb_start(mp->sb_prev); 2486 2487 if (mp != NULL && mp->sb_prev != NULL) 2488 { 2489 /* Find line to be displayed at top. */ 2490 for (i = 0; i > scroll; --i) 2491 { 2492 if (mp == NULL || mp->sb_prev == NULL) 2493 break; 2494 mp = msg_sb_start(mp->sb_prev); 2495 if (mp_last == NULL) 2496 mp_last = msg_sb_start(last_msgchunk); 2497 else 2498 mp_last = msg_sb_start(mp_last->sb_prev); 2499 } 2500 2501 if (scroll == -1 && screen_ins_lines(0, 0, 1, 2502 (int)Rows, NULL) == OK) 2503 { 2504 /* display line at top */ 2505 (void)disp_sb_line(0, mp); 2506 } 2507 else 2508 { 2509 /* redisplay all lines */ 2510 screenclear(); 2511 for (i = 0; i < Rows - 1; ++i) 2512 mp = disp_sb_line(i, mp); 2513 } 2514 scroll = 0; 2515 } 2516 } 2517 else 2518 { 2519 /* First display any text that we scrolled back. */ 2520 while (scroll > 0 && mp_last != NULL) 2521 { 2522 /* scroll up, display line at bottom */ 2523 msg_scroll_up(); 2524 ++msg_scrolled; 2525 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2526 (int)Columns, ' ', ' ', 0); 2527 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2528 --scroll; 2529 } 2530 } 2531 2532 if (scroll < 0 || (scroll == 0 && mp_last != NULL)) 2533 { 2534 /* displayed the requested text, more prompt again */ 2535 screen_fill((int)Rows - 1, (int)Rows, 0, 2536 (int)Columns, ' ', ' ', 0); 2537 msg_moremsg(FALSE); 2538 continue; 2539 } 2540 2541 /* display more text, return to caller */ 2542 lines_left = scroll; 2543 } 2544 2545 break; 2546 } 2547 2548 /* clear the --more-- message */ 2549 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2550 State = oldState; 2551 #ifdef FEAT_MOUSE 2552 setmouse(); 2553 #endif 2554 if (quit_more) 2555 { 2556 msg_row = Rows - 1; 2557 msg_col = 0; 2558 } 2559 #ifdef FEAT_RIGHTLEFT 2560 else if (cmdmsg_rl) 2561 msg_col = Columns - 1; 2562 #endif 2563 2564 #ifdef FEAT_CON_DIALOG 2565 return retval; 2566 #else 2567 return FALSE; 2568 #endif 2569 } 2570 2571 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 2572 2573 #ifdef mch_errmsg 2574 # undef mch_errmsg 2575 #endif 2576 #ifdef mch_msg 2577 # undef mch_msg 2578 #endif 2579 2580 /* 2581 * Give an error message. To be used when the screen hasn't been initialized 2582 * yet. When stderr can't be used, collect error messages until the GUI has 2583 * started and they can be displayed in a message box. 2584 */ 2585 void 2586 mch_errmsg(str) 2587 char *str; 2588 { 2589 int len; 2590 2591 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2592 /* On Unix use stderr if it's a tty. 2593 * When not going to start the GUI also use stderr. 2594 * On Mac, when started from Finder, stderr is the console. */ 2595 if ( 2596 # ifdef UNIX 2597 # ifdef MACOS_X_UNIX 2598 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2599 # else 2600 isatty(2) 2601 # endif 2602 # ifdef FEAT_GUI 2603 || 2604 # endif 2605 # endif 2606 # ifdef FEAT_GUI 2607 !(gui.in_use || gui.starting) 2608 # endif 2609 ) 2610 { 2611 fprintf(stderr, "%s", str); 2612 return; 2613 } 2614 #endif 2615 2616 /* avoid a delay for a message that isn't there */ 2617 emsg_on_display = FALSE; 2618 2619 len = (int)STRLEN(str) + 1; 2620 if (error_ga.ga_growsize == 0) 2621 { 2622 error_ga.ga_growsize = 80; 2623 error_ga.ga_itemsize = 1; 2624 } 2625 if (ga_grow(&error_ga, len) == OK) 2626 { 2627 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 2628 (char_u *)str, len); 2629 #ifdef UNIX 2630 /* remove CR characters, they are displayed */ 2631 { 2632 char_u *p; 2633 2634 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 2635 for (;;) 2636 { 2637 p = vim_strchr(p, '\r'); 2638 if (p == NULL) 2639 break; 2640 *p = ' '; 2641 } 2642 } 2643 #endif 2644 --len; /* don't count the NUL at the end */ 2645 error_ga.ga_len += len; 2646 } 2647 } 2648 2649 /* 2650 * Give a message. To be used when the screen hasn't been initialized yet. 2651 * When there is no tty, collect messages until the GUI has started and they 2652 * can be displayed in a message box. 2653 */ 2654 void 2655 mch_msg(str) 2656 char *str; 2657 { 2658 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2659 /* On Unix use stdout if we have a tty. This allows "vim -h | more" and 2660 * uses mch_errmsg() when started from the desktop. 2661 * When not going to start the GUI also use stdout. 2662 * On Mac, when started from Finder, stderr is the console. */ 2663 if ( 2664 # ifdef UNIX 2665 # ifdef MACOS_X_UNIX 2666 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2667 # else 2668 isatty(2) 2669 # endif 2670 # ifdef FEAT_GUI 2671 || 2672 # endif 2673 # endif 2674 # ifdef FEAT_GUI 2675 !(gui.in_use || gui.starting) 2676 # endif 2677 ) 2678 { 2679 printf("%s", str); 2680 return; 2681 } 2682 # endif 2683 mch_errmsg(str); 2684 } 2685 #endif /* USE_MCH_ERRMSG */ 2686 2687 /* 2688 * Put a character on the screen at the current message position and advance 2689 * to the next position. Only for printable ASCII! 2690 */ 2691 static void 2692 msg_screen_putchar(c, attr) 2693 int c; 2694 int attr; 2695 { 2696 msg_didout = TRUE; /* remember that line is not empty */ 2697 screen_putchar(c, msg_row, msg_col, attr); 2698 #ifdef FEAT_RIGHTLEFT 2699 if (cmdmsg_rl) 2700 { 2701 if (--msg_col == 0) 2702 { 2703 msg_col = Columns; 2704 ++msg_row; 2705 } 2706 } 2707 else 2708 #endif 2709 { 2710 if (++msg_col >= Columns) 2711 { 2712 msg_col = 0; 2713 ++msg_row; 2714 } 2715 } 2716 } 2717 2718 void 2719 msg_moremsg(full) 2720 int full; 2721 { 2722 int attr; 2723 char_u *s = (char_u *)_("-- More --"); 2724 2725 attr = hl_attr(HLF_M); 2726 screen_puts(s, (int)Rows - 1, 0, attr); 2727 if (full) 2728 screen_puts((char_u *) 2729 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 2730 (int)Rows - 1, vim_strsize(s), attr); 2731 } 2732 2733 /* 2734 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 2735 * exmode_active. 2736 */ 2737 void 2738 repeat_message() 2739 { 2740 if (State == ASKMORE) 2741 { 2742 msg_moremsg(TRUE); /* display --more-- message again */ 2743 msg_row = Rows - 1; 2744 } 2745 #ifdef FEAT_CON_DIALOG 2746 else if (State == CONFIRM) 2747 { 2748 display_confirm_msg(); /* display ":confirm" message again */ 2749 msg_row = Rows - 1; 2750 } 2751 #endif 2752 else if (State == EXTERNCMD) 2753 { 2754 windgoto(msg_row, msg_col); /* put cursor back */ 2755 } 2756 else if (State == HITRETURN || State == SETWSIZE) 2757 { 2758 hit_return_msg(); 2759 msg_row = Rows - 1; 2760 } 2761 } 2762 2763 /* 2764 * msg_check_screen - check if the screen is initialized. 2765 * Also check msg_row and msg_col, if they are too big it may cause a crash. 2766 * While starting the GUI the terminal codes will be set for the GUI, but the 2767 * output goes to the terminal. Don't use the terminal codes then. 2768 */ 2769 static int 2770 msg_check_screen() 2771 { 2772 if (!full_screen || !screen_valid(FALSE)) 2773 return FALSE; 2774 2775 if (msg_row >= Rows) 2776 msg_row = Rows - 1; 2777 if (msg_col >= Columns) 2778 msg_col = Columns - 1; 2779 return TRUE; 2780 } 2781 2782 /* 2783 * Clear from current message position to end of screen. 2784 * Skip this when ":silent" was used, no need to clear for redirection. 2785 */ 2786 void 2787 msg_clr_eos() 2788 { 2789 if (msg_silent == 0) 2790 msg_clr_eos_force(); 2791 } 2792 2793 /* 2794 * Clear from current message position to end of screen. 2795 * Note: msg_col is not updated, so we remember the end of the message 2796 * for msg_check(). 2797 */ 2798 void 2799 msg_clr_eos_force() 2800 { 2801 if (msg_use_printf()) 2802 { 2803 if (full_screen) /* only when termcap codes are valid */ 2804 { 2805 if (*T_CD) 2806 out_str(T_CD); /* clear to end of display */ 2807 else if (*T_CE) 2808 out_str(T_CE); /* clear to end of line */ 2809 } 2810 } 2811 else 2812 { 2813 #ifdef FEAT_RIGHTLEFT 2814 if (cmdmsg_rl) 2815 { 2816 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 2817 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2818 } 2819 else 2820 #endif 2821 { 2822 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 2823 ' ', ' ', 0); 2824 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2825 } 2826 } 2827 } 2828 2829 /* 2830 * Clear the command line. 2831 */ 2832 void 2833 msg_clr_cmdline() 2834 { 2835 msg_row = cmdline_row; 2836 msg_col = 0; 2837 msg_clr_eos_force(); 2838 } 2839 2840 /* 2841 * end putting a message on the screen 2842 * call wait_return if the message does not fit in the available space 2843 * return TRUE if wait_return not called. 2844 */ 2845 int 2846 msg_end() 2847 { 2848 /* 2849 * if the string is larger than the window, 2850 * or the ruler option is set and we run into it, 2851 * we have to redraw the window. 2852 * Do not do this if we are abandoning the file or editing the command line. 2853 */ 2854 if (!exiting && need_wait_return && !(State & CMDLINE)) 2855 { 2856 wait_return(FALSE); 2857 return FALSE; 2858 } 2859 out_flush(); 2860 return TRUE; 2861 } 2862 2863 /* 2864 * If the written message runs into the shown command or ruler, we have to 2865 * wait for hit-return and redraw the window later. 2866 */ 2867 void 2868 msg_check() 2869 { 2870 if (msg_row == Rows - 1 && msg_col >= sc_col) 2871 { 2872 need_wait_return = TRUE; 2873 redraw_cmdline = TRUE; 2874 } 2875 } 2876 2877 /* 2878 * May write a string to the redirection file. 2879 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 2880 */ 2881 static void 2882 redir_write(str, maxlen) 2883 char_u *str; 2884 int maxlen; 2885 { 2886 char_u *s = str; 2887 static int cur_col = 0; 2888 2889 /* Don't do anything for displaying prompts and the like. */ 2890 if (redir_off) 2891 return; 2892 2893 /* 2894 * If 'verbosefile' is set write message in that file. 2895 * Must come before the rest because of updating "msg_col". 2896 */ 2897 if (*p_vfile != NUL) 2898 verbose_write(s, maxlen); 2899 2900 if (redir_fd != NULL 2901 #ifdef FEAT_EVAL 2902 || redir_reg || redir_vname 2903 #endif 2904 ) 2905 { 2906 /* If the string doesn't start with CR or NL, go to msg_col */ 2907 if (*s != '\n' && *s != '\r') 2908 { 2909 while (cur_col < msg_col) 2910 { 2911 #ifdef FEAT_EVAL 2912 if (redir_reg) 2913 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 2914 else if (redir_vname) 2915 var_redir_str((char_u *)" ", -1); 2916 else if (redir_fd) 2917 #endif 2918 fputs(" ", redir_fd); 2919 ++cur_col; 2920 } 2921 } 2922 2923 #ifdef FEAT_EVAL 2924 if (redir_reg) 2925 write_reg_contents(redir_reg, s, maxlen, TRUE); 2926 if (redir_vname) 2927 var_redir_str(s, maxlen); 2928 #endif 2929 2930 /* Adjust the current column */ 2931 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 2932 { 2933 #ifdef FEAT_EVAL 2934 if (!redir_reg && !redir_vname && redir_fd != NULL) 2935 #endif 2936 putc(*s, redir_fd); 2937 if (*s == '\r' || *s == '\n') 2938 cur_col = 0; 2939 else if (*s == '\t') 2940 cur_col += (8 - cur_col % 8); 2941 else 2942 ++cur_col; 2943 ++s; 2944 } 2945 2946 if (msg_silent != 0) /* should update msg_col */ 2947 msg_col = cur_col; 2948 } 2949 } 2950 2951 /* 2952 * Before giving verbose messsage. 2953 * Must always be called paired with verbose_leave()! 2954 */ 2955 void 2956 verbose_enter() 2957 { 2958 if (*p_vfile != NUL) 2959 ++msg_silent; 2960 } 2961 2962 /* 2963 * After giving verbose message. 2964 * Must always be called paired with verbose_enter()! 2965 */ 2966 void 2967 verbose_leave() 2968 { 2969 if (*p_vfile != NUL) 2970 if (--msg_silent < 0) 2971 msg_silent = 0; 2972 } 2973 2974 /* 2975 * Like verbose_enter() and set msg_scroll when displaying the message. 2976 */ 2977 void 2978 verbose_enter_scroll() 2979 { 2980 if (*p_vfile != NUL) 2981 ++msg_silent; 2982 else 2983 /* always scroll up, don't overwrite */ 2984 msg_scroll = TRUE; 2985 } 2986 2987 /* 2988 * Like verbose_leave() and set cmdline_row when displaying the message. 2989 */ 2990 void 2991 verbose_leave_scroll() 2992 { 2993 if (*p_vfile != NUL) 2994 { 2995 if (--msg_silent < 0) 2996 msg_silent = 0; 2997 } 2998 else 2999 cmdline_row = msg_row; 3000 } 3001 3002 static FILE *verbose_fd = NULL; 3003 static int verbose_did_open = FALSE; 3004 3005 /* 3006 * Called when 'verbosefile' is set: stop writing to the file. 3007 */ 3008 void 3009 verbose_stop() 3010 { 3011 if (verbose_fd != NULL) 3012 { 3013 fclose(verbose_fd); 3014 verbose_fd = NULL; 3015 } 3016 verbose_did_open = FALSE; 3017 } 3018 3019 /* 3020 * Open the file 'verbosefile'. 3021 * Return FAIL or OK. 3022 */ 3023 int 3024 verbose_open() 3025 { 3026 if (verbose_fd == NULL && !verbose_did_open) 3027 { 3028 /* Only give the error message once. */ 3029 verbose_did_open = TRUE; 3030 3031 verbose_fd = fopen((char *)p_vfile, "a"); 3032 if (verbose_fd == NULL) 3033 { 3034 EMSG2(_(e_notopen), p_vfile); 3035 return FAIL; 3036 } 3037 } 3038 return OK; 3039 } 3040 3041 /* 3042 * Write a string to 'verbosefile'. 3043 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3044 */ 3045 static void 3046 verbose_write(str, maxlen) 3047 char_u *str; 3048 int maxlen; 3049 { 3050 char_u *s = str; 3051 static int cur_col = 0; 3052 3053 /* Open the file when called the first time. */ 3054 if (verbose_fd == NULL) 3055 verbose_open(); 3056 3057 if (verbose_fd != NULL) 3058 { 3059 /* If the string doesn't start with CR or NL, go to msg_col */ 3060 if (*s != '\n' && *s != '\r') 3061 { 3062 while (cur_col < msg_col) 3063 { 3064 fputs(" ", verbose_fd); 3065 ++cur_col; 3066 } 3067 } 3068 3069 /* Adjust the current column */ 3070 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3071 { 3072 putc(*s, verbose_fd); 3073 if (*s == '\r' || *s == '\n') 3074 cur_col = 0; 3075 else if (*s == '\t') 3076 cur_col += (8 - cur_col % 8); 3077 else 3078 ++cur_col; 3079 ++s; 3080 } 3081 } 3082 } 3083 3084 /* 3085 * Give a warning message (for searching). 3086 * Use 'w' highlighting and may repeat the message after redrawing 3087 */ 3088 void 3089 give_warning(message, hl) 3090 char_u *message; 3091 int hl; 3092 { 3093 /* Don't do this for ":silent". */ 3094 if (msg_silent != 0) 3095 return; 3096 3097 /* Don't want a hit-enter prompt here. */ 3098 ++no_wait_return; 3099 3100 #ifdef FEAT_EVAL 3101 set_vim_var_string(VV_WARNINGMSG, message, -1); 3102 #endif 3103 vim_free(keep_msg); 3104 keep_msg = NULL; 3105 if (hl) 3106 keep_msg_attr = hl_attr(HLF_W); 3107 else 3108 keep_msg_attr = 0; 3109 if (msg_attr(message, keep_msg_attr) && msg_scrolled == 0) 3110 set_keep_msg(message); 3111 msg_didout = FALSE; /* overwrite this message */ 3112 msg_nowait = TRUE; /* don't wait for this message */ 3113 msg_col = 0; 3114 3115 --no_wait_return; 3116 } 3117 3118 /* 3119 * Advance msg cursor to column "col". 3120 */ 3121 void 3122 msg_advance(col) 3123 int col; 3124 { 3125 if (msg_silent != 0) /* nothing to advance to */ 3126 { 3127 msg_col = col; /* for redirection, may fill it up later */ 3128 return; 3129 } 3130 if (col >= Columns) /* not enough room */ 3131 col = Columns - 1; 3132 while (msg_col < col) 3133 msg_putchar(' '); 3134 } 3135 3136 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3137 /* 3138 * Used for "confirm()" function, and the :confirm command prefix. 3139 * Versions which haven't got flexible dialogs yet, and console 3140 * versions, get this generic handler which uses the command line. 3141 * 3142 * type = one of: 3143 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3144 * title = title string (can be NULL for default) 3145 * (neither used in console dialogs at the moment) 3146 * 3147 * Format of the "buttons" string: 3148 * "Button1Name\nButton2Name\nButton3Name" 3149 * The first button should normally be the default/accept 3150 * The second button should be the 'Cancel' button 3151 * Other buttons- use your imagination! 3152 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3153 * different letter. 3154 */ 3155 /* ARGSUSED */ 3156 int 3157 do_dialog(type, title, message, buttons, dfltbutton, textfield) 3158 int type; 3159 char_u *title; 3160 char_u *message; 3161 char_u *buttons; 3162 int dfltbutton; 3163 char_u *textfield; /* IObuff for inputdialog(), NULL otherwise */ 3164 { 3165 int oldState; 3166 int retval = 0; 3167 char_u *hotkeys; 3168 int c; 3169 int i; 3170 3171 #ifndef NO_CONSOLE 3172 /* Don't output anything in silent mode ("ex -s") */ 3173 if (silent_mode) 3174 return dfltbutton; /* return default option */ 3175 #endif 3176 3177 #ifdef FEAT_GUI_DIALOG 3178 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3179 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3180 { 3181 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3182 textfield); 3183 msg_end_prompt(); 3184 3185 /* Flush output to avoid that further messages and redrawing is done 3186 * in the wrong order. */ 3187 out_flush(); 3188 gui_mch_update(); 3189 3190 return c; 3191 } 3192 #endif 3193 3194 oldState = State; 3195 State = CONFIRM; 3196 #ifdef FEAT_MOUSE 3197 setmouse(); 3198 #endif 3199 3200 /* 3201 * Since we wait for a keypress, don't make the 3202 * user press RETURN as well afterwards. 3203 */ 3204 ++no_wait_return; 3205 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3206 3207 if (hotkeys != NULL) 3208 { 3209 for (;;) 3210 { 3211 /* Get a typed character directly from the user. */ 3212 c = get_keystroke(); 3213 switch (c) 3214 { 3215 case CAR: /* User accepts default option */ 3216 case NL: 3217 retval = dfltbutton; 3218 break; 3219 case Ctrl_C: /* User aborts/cancels */ 3220 case ESC: 3221 retval = 0; 3222 break; 3223 default: /* Could be a hotkey? */ 3224 if (c < 0) /* special keys are ignored here */ 3225 continue; 3226 /* Make the character lowercase, as chars in "hotkeys" are. */ 3227 c = MB_TOLOWER(c); 3228 retval = 1; 3229 for (i = 0; hotkeys[i]; ++i) 3230 { 3231 #ifdef FEAT_MBYTE 3232 if (has_mbyte) 3233 { 3234 if ((*mb_ptr2char)(hotkeys + i) == c) 3235 break; 3236 i += (*mb_ptr2len_check)(hotkeys + i) - 1; 3237 } 3238 else 3239 #endif 3240 if (hotkeys[i] == c) 3241 break; 3242 ++retval; 3243 } 3244 if (hotkeys[i]) 3245 break; 3246 /* No hotkey match, so keep waiting */ 3247 continue; 3248 } 3249 break; 3250 } 3251 3252 vim_free(hotkeys); 3253 } 3254 3255 State = oldState; 3256 #ifdef FEAT_MOUSE 3257 setmouse(); 3258 #endif 3259 --no_wait_return; 3260 msg_end_prompt(); 3261 3262 return retval; 3263 } 3264 3265 static int copy_char __ARGS((char_u *from, char_u *to, int lowercase)); 3266 3267 /* 3268 * Copy one character from "*from" to "*to", taking care of multi-byte 3269 * characters. Return the length of the character in bytes. 3270 */ 3271 static int 3272 copy_char(from, to, lowercase) 3273 char_u *from; 3274 char_u *to; 3275 int lowercase; /* make character lower case */ 3276 { 3277 #ifdef FEAT_MBYTE 3278 int len; 3279 int c; 3280 3281 if (has_mbyte) 3282 { 3283 if (lowercase) 3284 { 3285 c = MB_TOLOWER((*mb_ptr2char)(from)); 3286 return (*mb_char2bytes)(c, to); 3287 } 3288 else 3289 { 3290 len = (*mb_ptr2len_check)(from); 3291 mch_memmove(to, from, (size_t)len); 3292 return len; 3293 } 3294 } 3295 else 3296 #endif 3297 { 3298 if (lowercase) 3299 *to = (char_u)TOLOWER_LOC(*from); 3300 else 3301 *to = *from; 3302 return 1; 3303 } 3304 } 3305 3306 /* 3307 * Format the dialog string, and display it at the bottom of 3308 * the screen. Return a string of hotkey chars (if defined) for 3309 * each 'button'. If a button has no hotkey defined, the first character of 3310 * the button is used. 3311 * The hotkeys can be multi-byte characters, but without combining chars. 3312 * 3313 * Returns an allocated string with hotkeys, or NULL for error. 3314 */ 3315 static char_u * 3316 msg_show_console_dialog(message, buttons, dfltbutton) 3317 char_u *message; 3318 char_u *buttons; 3319 int dfltbutton; 3320 { 3321 int len = 0; 3322 #ifdef FEAT_MBYTE 3323 # define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3324 #else 3325 # define HOTK_LEN 1 3326 #endif 3327 int lenhotkey = HOTK_LEN; /* count first button */ 3328 char_u *hotk = NULL; 3329 char_u *msgp = NULL; 3330 char_u *hotkp = NULL; 3331 char_u *r; 3332 int copy; 3333 #define HAS_HOTKEY_LEN 30 3334 char_u has_hotkey[HAS_HOTKEY_LEN]; 3335 int first_hotkey = FALSE; /* first char of button is hotkey */ 3336 int idx; 3337 3338 has_hotkey[0] = FALSE; 3339 3340 /* 3341 * First loop: compute the size of memory to allocate. 3342 * Second loop: copy to the allocated memory. 3343 */ 3344 for (copy = 0; copy <= 1; ++copy) 3345 { 3346 r = buttons; 3347 idx = 0; 3348 while (*r) 3349 { 3350 if (*r == DLG_BUTTON_SEP) 3351 { 3352 if (copy) 3353 { 3354 *msgp++ = ','; 3355 *msgp++ = ' '; /* '\n' -> ', ' */ 3356 3357 /* advance to next hotkey and set default hotkey */ 3358 #ifdef FEAT_MBYTE 3359 if (has_mbyte) 3360 hotkp += (*mb_ptr2len_check)(hotkp); 3361 else 3362 #endif 3363 ++hotkp; 3364 (void)copy_char(r + 1, hotkp, TRUE); 3365 if (dfltbutton) 3366 --dfltbutton; 3367 3368 /* If no hotkey is specified first char is used. */ 3369 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3370 first_hotkey = TRUE; 3371 } 3372 else 3373 { 3374 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3375 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3376 if (idx < HAS_HOTKEY_LEN - 1) 3377 has_hotkey[++idx] = FALSE; 3378 } 3379 } 3380 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3381 { 3382 if (*r == DLG_HOTKEY_CHAR) 3383 ++r; 3384 first_hotkey = FALSE; 3385 if (copy) 3386 { 3387 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3388 *msgp++ = *r; 3389 else 3390 { 3391 /* '&a' -> '[a]' */ 3392 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3393 msgp += copy_char(r, msgp, FALSE); 3394 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3395 3396 /* redefine hotkey */ 3397 (void)copy_char(r, hotkp, TRUE); 3398 } 3399 } 3400 else 3401 { 3402 ++len; /* '&a' -> '[a]' */ 3403 if (idx < HAS_HOTKEY_LEN - 1) 3404 has_hotkey[idx] = TRUE; 3405 } 3406 } 3407 else 3408 { 3409 /* everything else copy literally */ 3410 if (copy) 3411 msgp += copy_char(r, msgp, FALSE); 3412 } 3413 3414 /* advance to the next character */ 3415 mb_ptr_adv(r); 3416 } 3417 3418 if (copy) 3419 { 3420 *msgp++ = ':'; 3421 *msgp++ = ' '; 3422 *msgp = NUL; 3423 mb_ptr_adv(hotkp); 3424 *hotkp = NUL; 3425 } 3426 else 3427 { 3428 len += STRLEN(message) 3429 + 2 /* for the NL's */ 3430 + STRLEN(buttons) 3431 + 3; /* for the ": " and NUL */ 3432 lenhotkey++; /* for the NUL */ 3433 3434 /* If no hotkey is specified first char is used. */ 3435 if (!has_hotkey[0]) 3436 { 3437 first_hotkey = TRUE; 3438 len += 2; /* "x" -> "[x]" */ 3439 } 3440 3441 /* 3442 * Now allocate and load the strings 3443 */ 3444 vim_free(confirm_msg); 3445 confirm_msg = alloc(len); 3446 if (confirm_msg == NULL) 3447 return NULL; 3448 *confirm_msg = NUL; 3449 hotk = alloc(lenhotkey); 3450 if (hotk == NULL) 3451 return NULL; 3452 3453 *confirm_msg = '\n'; 3454 STRCPY(confirm_msg + 1, message); 3455 3456 msgp = confirm_msg + 1 + STRLEN(message); 3457 hotkp = hotk; 3458 3459 /* define first default hotkey */ 3460 (void)copy_char(buttons, hotkp, TRUE); 3461 3462 /* Remember where the choices start, displaying starts here when 3463 * "hotkp" typed at the more prompt. */ 3464 confirm_msg_tail = msgp; 3465 *msgp++ = '\n'; 3466 } 3467 } 3468 3469 display_confirm_msg(); 3470 return hotk; 3471 } 3472 3473 /* 3474 * Display the ":confirm" message. Also called when screen resized. 3475 */ 3476 void 3477 display_confirm_msg() 3478 { 3479 /* avoid that 'q' at the more prompt truncates the message here */ 3480 ++confirm_msg_used; 3481 if (confirm_msg != NULL) 3482 msg_puts_attr(confirm_msg, hl_attr(HLF_M)); 3483 --confirm_msg_used; 3484 } 3485 3486 #endif /* FEAT_CON_DIALOG */ 3487 3488 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3489 3490 int 3491 vim_dialog_yesno(type, title, message, dflt) 3492 int type; 3493 char_u *title; 3494 char_u *message; 3495 int dflt; 3496 { 3497 if (do_dialog(type, 3498 title == NULL ? (char_u *)_("Question") : title, 3499 message, 3500 (char_u *)_("&Yes\n&No"), dflt, NULL) == 1) 3501 return VIM_YES; 3502 return VIM_NO; 3503 } 3504 3505 int 3506 vim_dialog_yesnocancel(type, title, message, dflt) 3507 int type; 3508 char_u *title; 3509 char_u *message; 3510 int dflt; 3511 { 3512 switch (do_dialog(type, 3513 title == NULL ? (char_u *)_("Question") : title, 3514 message, 3515 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL)) 3516 { 3517 case 1: return VIM_YES; 3518 case 2: return VIM_NO; 3519 } 3520 return VIM_CANCEL; 3521 } 3522 3523 int 3524 vim_dialog_yesnoallcancel(type, title, message, dflt) 3525 int type; 3526 char_u *title; 3527 char_u *message; 3528 int dflt; 3529 { 3530 switch (do_dialog(type, 3531 title == NULL ? (char_u *)"Question" : title, 3532 message, 3533 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3534 dflt, NULL)) 3535 { 3536 case 1: return VIM_YES; 3537 case 2: return VIM_NO; 3538 case 3: return VIM_ALL; 3539 case 4: return VIM_DISCARDALL; 3540 } 3541 return VIM_CANCEL; 3542 } 3543 3544 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3545 3546 #if defined(FEAT_BROWSE) || defined(PROTO) 3547 /* 3548 * Generic browse function. Calls gui_mch_browse() when possible. 3549 * Later this may pop-up a non-GUI file selector (external command?). 3550 */ 3551 char_u * 3552 do_browse(flags, title, dflt, ext, initdir, filter, buf) 3553 int flags; /* BROWSE_SAVE and BROWSE_DIR */ 3554 char_u *title; /* title for the window */ 3555 char_u *dflt; /* default file name (may include directory) */ 3556 char_u *ext; /* extension added */ 3557 char_u *initdir; /* initial directory, NULL for current dir or 3558 when using path from "dflt" */ 3559 char_u *filter; /* file name filter */ 3560 buf_T *buf; /* buffer to read/write for */ 3561 { 3562 char_u *fname; 3563 static char_u *last_dir = NULL; /* last used directory */ 3564 char_u *tofree = NULL; 3565 int save_browse = cmdmod.browse; 3566 3567 /* Must turn off browse to avoid that autocommands will get the 3568 * flag too! */ 3569 cmdmod.browse = FALSE; 3570 3571 if (title == NULL || *title == NUL) 3572 { 3573 if (flags & BROWSE_DIR) 3574 title = (char_u *)_("Select Directory dialog"); 3575 else if (flags & BROWSE_SAVE) 3576 title = (char_u *)_("Save File dialog"); 3577 else 3578 title = (char_u *)_("Open File dialog"); 3579 } 3580 3581 /* When no directory specified, use default file name, default dir, buffer 3582 * dir, last dir or current dir */ 3583 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 3584 { 3585 if (mch_isdir(dflt)) /* default file name is a directory */ 3586 { 3587 initdir = dflt; 3588 dflt = NULL; 3589 } 3590 else if (gettail(dflt) != dflt) /* default file name includes a path */ 3591 { 3592 tofree = vim_strsave(dflt); 3593 if (tofree != NULL) 3594 { 3595 initdir = tofree; 3596 *gettail(initdir) = NUL; 3597 dflt = gettail(dflt); 3598 } 3599 } 3600 } 3601 3602 if (initdir == NULL || *initdir == NUL) 3603 { 3604 /* When 'browsedir' is a directory, use it */ 3605 if (STRCMP(p_bsdir, "last") != 0 3606 && STRCMP(p_bsdir, "buffer") != 0 3607 && STRCMP(p_bsdir, "current") != 0 3608 && mch_isdir(p_bsdir)) 3609 initdir = p_bsdir; 3610 /* When saving or 'browsedir' is "buffer", use buffer fname */ 3611 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 3612 && buf != NULL && buf->b_ffname != NULL) 3613 { 3614 if (dflt == NULL || *dflt == NUL) 3615 dflt = gettail(curbuf->b_ffname); 3616 tofree = vim_strsave(curbuf->b_ffname); 3617 if (tofree != NULL) 3618 { 3619 initdir = tofree; 3620 *gettail(initdir) = NUL; 3621 } 3622 } 3623 /* When 'browsedir' is "last", use dir from last browse */ 3624 else if (*p_bsdir == 'l') 3625 initdir = last_dir; 3626 /* When 'browsedir is "current", use current directory. This is the 3627 * default already, leave initdir empty. */ 3628 } 3629 3630 # ifdef FEAT_GUI 3631 if (gui.in_use) /* when this changes, also adjust f_has()! */ 3632 { 3633 if (filter == NULL 3634 # ifdef FEAT_EVAL 3635 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 3636 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 3637 # endif 3638 ) 3639 filter = BROWSE_FILTER_DEFAULT; 3640 if (flags & BROWSE_DIR) 3641 { 3642 # if defined(HAVE_GTK2) || defined(WIN3264) 3643 /* For systems that have a directory dialog. */ 3644 fname = gui_mch_browsedir(title, initdir); 3645 # else 3646 /* Generic solution for selecting a directory: select a file and 3647 * remove the file name. */ 3648 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 3649 # endif 3650 # if !defined(HAVE_GTK2) 3651 /* Win32 adds a dummy file name, others return an arbitrary file 3652 * name. GTK+ 2 returns only the directory, */ 3653 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 3654 { 3655 /* Remove the file name. */ 3656 char_u *tail = gettail_sep(fname); 3657 3658 if (tail == fname) 3659 *tail++ = '.'; /* use current dir */ 3660 *tail = NUL; 3661 } 3662 # endif 3663 } 3664 else 3665 fname = gui_mch_browse(flags & BROWSE_SAVE, 3666 title, dflt, ext, initdir, filter); 3667 3668 /* We hang around in the dialog for a while, the user might do some 3669 * things to our files. The Win32 dialog allows deleting or renaming 3670 * a file, check timestamps. */ 3671 need_check_timestamps = TRUE; 3672 did_check_timestamps = FALSE; 3673 } 3674 else 3675 # endif 3676 { 3677 /* TODO: non-GUI file selector here */ 3678 EMSG(_("E338: Sorry, no file browser in console mode")); 3679 fname = NULL; 3680 } 3681 3682 /* keep the directory for next time */ 3683 if (fname != NULL) 3684 { 3685 vim_free(last_dir); 3686 last_dir = vim_strsave(fname); 3687 if (last_dir != NULL && !(flags & BROWSE_DIR)) 3688 { 3689 *gettail(last_dir) = NUL; 3690 if (*last_dir == NUL) 3691 { 3692 /* filename only returned, must be in current dir */ 3693 vim_free(last_dir); 3694 last_dir = alloc(MAXPATHL); 3695 if (last_dir != NULL) 3696 mch_dirname(last_dir, MAXPATHL); 3697 } 3698 } 3699 } 3700 3701 vim_free(tofree); 3702 cmdmod.browse = save_browse; 3703 3704 return fname; 3705 } 3706 #endif 3707 3708 #if defined(HAVE_STDARG_H) && defined(FEAT_EVAL) 3709 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 3710 3711 static long tv_nr __ARGS((typval_T *tvs, int *idxp)); 3712 static char *tv_str __ARGS((typval_T *tvs, int *idxp)); 3713 3714 /* 3715 * Get number argument from "idxp" entry in "tvs". First entry is 1. 3716 */ 3717 static long 3718 tv_nr(tvs, idxp) 3719 typval_T *tvs; 3720 int *idxp; 3721 { 3722 int idx = *idxp - 1; 3723 long n = 0; 3724 int err = FALSE; 3725 3726 if (tvs[idx].v_type == VAR_UNKNOWN) 3727 EMSG(_(e_printf)); 3728 else 3729 { 3730 ++*idxp; 3731 n = get_tv_number_chk(&tvs[idx], &err); 3732 if (err) 3733 n = 0; 3734 } 3735 return n; 3736 } 3737 3738 /* 3739 * Get string argument from "idxp" entry in "tvs". First entry is 1. 3740 */ 3741 static char * 3742 tv_str(tvs, idxp) 3743 typval_T *tvs; 3744 int *idxp; 3745 { 3746 int idx = *idxp - 1; 3747 char *s = NULL; 3748 3749 if (tvs[idx].v_type == VAR_UNKNOWN) 3750 EMSG(_(e_printf)); 3751 else 3752 { 3753 ++*idxp; 3754 s = (char *)get_tv_string_chk(&tvs[idx]); 3755 } 3756 return s; 3757 } 3758 #endif 3759 3760 /* 3761 * This code was included to provide a portable vsnprintf() and snprintf(). 3762 * Some systems may provide their own, but we always use these for 3763 * consistency. 3764 * 3765 * This code is based on snprintf.c - a portable implementation of snprintf 3766 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 3767 * Included with permission. It was heavely modified to fit in Vim. 3768 * The original code, including useful comments, can be found here: 3769 * http://www.ijs.si/software/snprintf/ 3770 * 3771 * This snprintf() only supports the following conversion specifiers: 3772 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 3773 * with flags: '-', '+', ' ', '0' and '#'. 3774 * An asterisk is supported for field width as well as precision. 3775 * 3776 * Length modifiers 'h' (short int) and 'l' (long int) are supported. 3777 * 'll' (long long int) is not supported. 3778 * 3779 * The locale is not used, the string is used as a byte string. This is only 3780 * relevant for double-byte encodings where the second byte may be '%'. 3781 * 3782 * It is permitted for str_m to be zero, and it is permitted to specify NULL 3783 * pointer for resulting string argument if str_m is zero (as per ISO C99). 3784 * 3785 * The return value is the number of characters which would be generated 3786 * for the given input, excluding the trailing null. If this value 3787 * is greater or equal to str_m, not all characters from the result 3788 * have been stored in str, output bytes beyond the (str_m-1) -th character 3789 * are discarded. If str_m is greater than zero it is guaranteed 3790 * the resulting string will be null-terminated. 3791 */ 3792 3793 /* 3794 * When va_list is not supported we only define vim_snprintf(). 3795 * 3796 * vim_vsnprintf() can be invoked with either "va_list" or a list of 3797 * "typval_T". The other must be NULL. 3798 */ 3799 3800 /* When generating prototypes all of this is skipped, cproto doesn't 3801 * understand this. */ 3802 #ifndef PROTO 3803 # ifdef HAVE_STDARG_H 3804 int 3805 vim_snprintf(char *str, size_t str_m, char *fmt, ...) 3806 { 3807 va_list ap; 3808 int str_l; 3809 3810 va_start(ap, fmt); 3811 str_l = vim_vsnprintf(str, str_m, fmt, ap, NULL); 3812 va_end(ap); 3813 return str_l; 3814 } 3815 3816 int 3817 vim_vsnprintf(str, str_m, fmt, ap, tvs) 3818 # else 3819 /* clumsy way to work around missing va_list */ 3820 # define get_a_arg(i) (++i, i == 2 ? a1 : i == 3 ? a2 : i == 4 ? a3 : i == 5 ? a4 : i == 6 ? a5 : i == 7 ? a6 : i == 8 ? a7 : i == 9 ? a8 : i == 10 ? a9 : a10) 3821 3822 /* VARARGS */ 3823 int 3824 #ifdef __BORLANDC__ 3825 _RTLENTRYF 3826 #endif 3827 vim_snprintf(str, str_m, fmt, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 3828 # endif 3829 char *str; 3830 size_t str_m; 3831 char *fmt; 3832 # ifdef HAVE_STDARG_H 3833 va_list ap; 3834 typval_T *tvs; 3835 # else 3836 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 3837 # endif 3838 { 3839 size_t str_l = 0; 3840 char *p = fmt; 3841 int arg_idx = 1; 3842 3843 if (p == NULL) 3844 p = ""; 3845 while (*p != NUL) 3846 { 3847 if (*p != '%') 3848 { 3849 char *q = strchr(p + 1, '%'); 3850 size_t n = (q == NULL) ? STRLEN(p) : (q - p); 3851 3852 /* Copy up to the next '%' or NUL without any changes. */ 3853 if (str_l < str_m) 3854 { 3855 size_t avail = str_m - str_l; 3856 3857 mch_memmove(str + str_l, p, n > avail ? avail : n); 3858 } 3859 p += n; 3860 str_l += n; 3861 } 3862 else 3863 { 3864 size_t min_field_width = 0, precision = 0; 3865 int zero_padding = 0, precision_specified = 0, justify_left = 0; 3866 int alternate_form = 0, force_sign = 0; 3867 3868 /* If both the ' ' and '+' flags appear, the ' ' flag should be 3869 * ignored. */ 3870 int space_for_positive = 1; 3871 3872 /* allowed values: \0, h, l, L */ 3873 char length_modifier = '\0'; 3874 3875 /* temporary buffer for simple numeric->string conversion */ 3876 char tmp[32]; 3877 3878 /* string address in case of string argument */ 3879 char *str_arg; 3880 3881 /* natural field width of arg without padding and sign */ 3882 size_t str_arg_l; 3883 3884 /* unsigned char argument value - only defined for c conversion. 3885 * N.B. standard explicitly states the char argument for the c 3886 * conversion is unsigned */ 3887 unsigned char uchar_arg; 3888 3889 /* number of zeros to be inserted for numeric conversions as 3890 * required by the precision or minimal field width */ 3891 size_t number_of_zeros_to_pad = 0; 3892 3893 /* index into tmp where zero padding is to be inserted */ 3894 size_t zero_padding_insertion_ind = 0; 3895 3896 /* current conversion specifier character */ 3897 char fmt_spec = '\0'; 3898 3899 str_arg = NULL; 3900 p++; /* skip '%' */ 3901 3902 /* parse flags */ 3903 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 3904 || *p == '#' || *p == '\'') 3905 { 3906 switch (*p) 3907 { 3908 case '0': zero_padding = 1; break; 3909 case '-': justify_left = 1; break; 3910 case '+': force_sign = 1; space_for_positive = 0; break; 3911 case ' ': force_sign = 1; 3912 /* If both the ' ' and '+' flags appear, the ' ' 3913 * flag should be ignored */ 3914 break; 3915 case '#': alternate_form = 1; break; 3916 case '\'': break; 3917 } 3918 p++; 3919 } 3920 /* If the '0' and '-' flags both appear, the '0' flag should be 3921 * ignored. */ 3922 3923 /* parse field width */ 3924 if (*p == '*') 3925 { 3926 int j; 3927 3928 p++; 3929 j = 3930 #ifndef HAVE_STDARG_H 3931 get_a_arg(arg_idx); 3932 #else 3933 # if defined(FEAT_EVAL) 3934 ap == NULL ? tv_nr(tvs, &arg_idx) : 3935 # endif 3936 va_arg(ap, int); 3937 #endif 3938 if (j >= 0) 3939 min_field_width = j; 3940 else 3941 { 3942 min_field_width = -j; 3943 justify_left = 1; 3944 } 3945 } 3946 else if (VIM_ISDIGIT((int)(*p))) 3947 { 3948 /* size_t could be wider than unsigned int; make sure we treat 3949 * argument like common implementations do */ 3950 unsigned int uj = *p++ - '0'; 3951 3952 while (VIM_ISDIGIT((int)(*p))) 3953 uj = 10 * uj + (unsigned int)(*p++ - '0'); 3954 min_field_width = uj; 3955 } 3956 3957 /* parse precision */ 3958 if (*p == '.') 3959 { 3960 p++; 3961 precision_specified = 1; 3962 if (*p == '*') 3963 { 3964 int j; 3965 3966 j = 3967 #ifndef HAVE_STDARG_H 3968 get_a_arg(arg_idx); 3969 #else 3970 # if defined(FEAT_EVAL) 3971 ap == NULL ? tv_nr(tvs, &arg_idx) : 3972 # endif 3973 va_arg(ap, int); 3974 #endif 3975 p++; 3976 if (j >= 0) 3977 precision = j; 3978 else 3979 { 3980 precision_specified = 0; 3981 precision = 0; 3982 } 3983 } 3984 else if (VIM_ISDIGIT((int)(*p))) 3985 { 3986 /* size_t could be wider than unsigned int; make sure we 3987 * treat argument like common implementations do */ 3988 unsigned int uj = *p++ - '0'; 3989 3990 while (VIM_ISDIGIT((int)(*p))) 3991 uj = 10 * uj + (unsigned int)(*p++ - '0'); 3992 precision = uj; 3993 } 3994 } 3995 3996 /* parse 'h', 'l' and 'll' length modifiers */ 3997 if (*p == 'h' || *p == 'l') 3998 { 3999 length_modifier = *p; 4000 p++; 4001 if (length_modifier == 'l' && *p == 'l') 4002 { 4003 /* double l = long long */ 4004 length_modifier = 'l'; /* treat it as a single 'l' */ 4005 p++; 4006 } 4007 } 4008 fmt_spec = *p; 4009 4010 /* common synonyms: */ 4011 switch (fmt_spec) 4012 { 4013 case 'i': fmt_spec = 'd'; break; 4014 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4015 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4016 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4017 default: break; 4018 } 4019 4020 /* get parameter value, do initial processing */ 4021 switch (fmt_spec) 4022 { 4023 /* '%' and 'c' behave similar to 's' regarding flags and field 4024 * widths */ 4025 case '%': 4026 case 'c': 4027 case 's': 4028 length_modifier = '\0'; 4029 zero_padding = 0; /* turn zero padding off for string 4030 conversions */ 4031 str_arg_l = 1; 4032 switch (fmt_spec) 4033 { 4034 case '%': 4035 str_arg = p; 4036 break; 4037 4038 case 'c': 4039 { 4040 int j; 4041 4042 j = 4043 #ifndef HAVE_STDARG_H 4044 get_a_arg(arg_idx); 4045 #else 4046 # if defined(FEAT_EVAL) 4047 ap == NULL ? tv_nr(tvs, &arg_idx) : 4048 # endif 4049 va_arg(ap, int); 4050 #endif 4051 /* standard demands unsigned char */ 4052 uchar_arg = (unsigned char)j; 4053 str_arg = (char *)&uchar_arg; 4054 break; 4055 } 4056 4057 case 's': 4058 str_arg = 4059 #ifndef HAVE_STDARG_H 4060 (char *)get_a_arg(arg_idx); 4061 #else 4062 # if defined(FEAT_EVAL) 4063 ap == NULL ? tv_str(tvs, &arg_idx) : 4064 # endif 4065 va_arg(ap, char *); 4066 #endif 4067 if (str_arg == NULL) 4068 { 4069 str_arg = "[NULL]"; 4070 str_arg_l = 6; 4071 } 4072 /* make sure not to address string beyond the specified 4073 * precision !!! */ 4074 else if (!precision_specified) 4075 str_arg_l = strlen(str_arg); 4076 /* truncate string if necessary as requested by precision */ 4077 else if (precision == 0) 4078 str_arg_l = 0; 4079 else 4080 { 4081 /* memchr on HP does not like n > 2^31 !!! */ 4082 char *q = memchr(str_arg, '\0', 4083 precision <= 0x7fffffff ? precision 4084 : 0x7fffffff); 4085 str_arg_l = (q == NULL) ? precision : q - str_arg; 4086 } 4087 break; 4088 4089 default: 4090 break; 4091 } 4092 break; 4093 4094 case 'd': case 'u': case 'o': case 'x': case 'X': case 'p': 4095 { 4096 /* NOTE: the u, o, x, X and p conversion specifiers 4097 * imply the value is unsigned; d implies a signed 4098 * value */ 4099 4100 /* 0 if numeric argument is zero (or if pointer is 4101 * NULL for 'p'), +1 if greater than zero (or nonzero 4102 * for unsigned arguments), -1 if negative (unsigned 4103 * argument is never negative) */ 4104 int arg_sign = 0; 4105 4106 /* only defined for length modifier h, or for no 4107 * length modifiers */ 4108 int int_arg = 0; 4109 unsigned int uint_arg = 0; 4110 4111 /* only defined for length modifier l */ 4112 long int long_arg = 0; 4113 unsigned long int ulong_arg = 0; 4114 4115 /* pointer argument value -only defined for p 4116 * conversion */ 4117 void *ptr_arg = NULL; 4118 4119 if (fmt_spec == 'p') 4120 { 4121 length_modifier = '\0'; 4122 ptr_arg = 4123 #ifndef HAVE_STDARG_H 4124 (void *)get_a_arg(arg_idx); 4125 #else 4126 # if defined(FEAT_EVAL) 4127 ap == NULL ? (void *)tv_str(tvs, &arg_idx) : 4128 # endif 4129 va_arg(ap, void *); 4130 #endif 4131 if (ptr_arg != NULL) 4132 arg_sign = 1; 4133 } 4134 else if (fmt_spec == 'd') 4135 { 4136 /* signed */ 4137 switch (length_modifier) 4138 { 4139 case '\0': 4140 case 'h': 4141 /* char and short arguments are passed as int. */ 4142 int_arg = 4143 #ifndef HAVE_STDARG_H 4144 get_a_arg(arg_idx); 4145 #else 4146 # if defined(FEAT_EVAL) 4147 ap == NULL ? tv_nr(tvs, &arg_idx) : 4148 # endif 4149 va_arg(ap, int); 4150 #endif 4151 if (int_arg > 0) 4152 arg_sign = 1; 4153 else if (int_arg < 0) 4154 arg_sign = -1; 4155 break; 4156 case 'l': 4157 long_arg = 4158 #ifndef HAVE_STDARG_H 4159 get_a_arg(arg_idx); 4160 #else 4161 # if defined(FEAT_EVAL) 4162 ap == NULL ? tv_nr(tvs, &arg_idx) : 4163 # endif 4164 va_arg(ap, long int); 4165 #endif 4166 if (long_arg > 0) 4167 arg_sign = 1; 4168 else if (long_arg < 0) 4169 arg_sign = -1; 4170 break; 4171 } 4172 } 4173 else 4174 { 4175 /* unsigned */ 4176 switch (length_modifier) 4177 { 4178 case '\0': 4179 case 'h': 4180 uint_arg = 4181 #ifndef HAVE_STDARG_H 4182 get_a_arg(arg_idx); 4183 #else 4184 # if defined(FEAT_EVAL) 4185 ap == NULL ? tv_nr(tvs, &arg_idx) : 4186 # endif 4187 va_arg(ap, unsigned int); 4188 #endif 4189 if (uint_arg != 0) 4190 arg_sign = 1; 4191 break; 4192 case 'l': 4193 ulong_arg = 4194 #ifndef HAVE_STDARG_H 4195 get_a_arg(arg_idx); 4196 #else 4197 # if defined(FEAT_EVAL) 4198 ap == NULL ? tv_nr(tvs, &arg_idx) : 4199 # endif 4200 va_arg(ap, unsigned long int); 4201 #endif 4202 if (ulong_arg != 0) 4203 arg_sign = 1; 4204 break; 4205 } 4206 } 4207 4208 str_arg = tmp; 4209 str_arg_l = 0; 4210 4211 /* NOTE: 4212 * For d, i, u, o, x, and X conversions, if precision is 4213 * specified, the '0' flag should be ignored. This is so 4214 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4215 * FreeBSD, NetBSD; but not with Perl. 4216 */ 4217 if (precision_specified) 4218 zero_padding = 0; 4219 if (fmt_spec == 'd') 4220 { 4221 if (force_sign && arg_sign >= 0) 4222 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4223 /* leave negative numbers for sprintf to handle, to 4224 * avoid handling tricky cases like (short int)-32768 */ 4225 } 4226 else if (alternate_form) 4227 { 4228 if (arg_sign != 0 4229 && (fmt_spec == 'x' || fmt_spec == 'X') ) 4230 { 4231 tmp[str_arg_l++] = '0'; 4232 tmp[str_arg_l++] = fmt_spec; 4233 } 4234 /* alternate form should have no effect for p 4235 * conversion, but ... */ 4236 } 4237 4238 zero_padding_insertion_ind = str_arg_l; 4239 if (!precision_specified) 4240 precision = 1; /* default precision is 1 */ 4241 if (precision == 0 && arg_sign == 0) 4242 { 4243 /* When zero value is formatted with an explicit 4244 * precision 0, the resulting formatted string is 4245 * empty (d, i, u, o, x, X, p). */ 4246 } 4247 else 4248 { 4249 char f[5]; 4250 int f_l = 0; 4251 4252 /* construct a simple format string for sprintf */ 4253 f[f_l++] = '%'; 4254 if (!length_modifier) 4255 ; 4256 else if (length_modifier == '2') 4257 { 4258 f[f_l++] = 'l'; 4259 f[f_l++] = 'l'; 4260 } 4261 else 4262 f[f_l++] = length_modifier; 4263 f[f_l++] = fmt_spec; 4264 f[f_l++] = '\0'; 4265 4266 if (fmt_spec == 'p') 4267 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4268 else if (fmt_spec == 'd') 4269 { 4270 /* signed */ 4271 switch (length_modifier) 4272 { 4273 case '\0': 4274 case 'h': str_arg_l += sprintf( 4275 tmp + str_arg_l, f, int_arg); 4276 break; 4277 case 'l': str_arg_l += sprintf( 4278 tmp + str_arg_l, f, long_arg); 4279 break; 4280 } 4281 } 4282 else 4283 { 4284 /* unsigned */ 4285 switch (length_modifier) 4286 { 4287 case '\0': 4288 case 'h': str_arg_l += sprintf( 4289 tmp + str_arg_l, f, uint_arg); 4290 break; 4291 case 'l': str_arg_l += sprintf( 4292 tmp + str_arg_l, f, ulong_arg); 4293 break; 4294 } 4295 } 4296 4297 /* include the optional minus sign and possible 4298 * "0x" in the region before the zero padding 4299 * insertion point */ 4300 if (zero_padding_insertion_ind < str_arg_l 4301 && tmp[zero_padding_insertion_ind] == '-') 4302 zero_padding_insertion_ind++; 4303 if (zero_padding_insertion_ind + 1 < str_arg_l 4304 && tmp[zero_padding_insertion_ind] == '0' 4305 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4306 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4307 zero_padding_insertion_ind += 2; 4308 } 4309 4310 { 4311 size_t num_of_digits = str_arg_l 4312 - zero_padding_insertion_ind; 4313 4314 if (alternate_form && fmt_spec == 'o' 4315 /* unless zero is already the first 4316 * character */ 4317 && !(zero_padding_insertion_ind < str_arg_l 4318 && tmp[zero_padding_insertion_ind] == '0')) 4319 { 4320 /* assure leading zero for alternate-form 4321 * octal numbers */ 4322 if (!precision_specified 4323 || precision < num_of_digits + 1) 4324 { 4325 /* precision is increased to force the 4326 * first character to be zero, except if a 4327 * zero value is formatted with an 4328 * explicit precision of zero */ 4329 precision = num_of_digits + 1; 4330 precision_specified = 1; 4331 } 4332 } 4333 /* zero padding to specified precision? */ 4334 if (num_of_digits < precision) 4335 number_of_zeros_to_pad = precision - num_of_digits; 4336 } 4337 /* zero padding to specified minimal field width? */ 4338 if (!justify_left && zero_padding) 4339 { 4340 int n = min_field_width - (str_arg_l 4341 + number_of_zeros_to_pad); 4342 if (n > 0) 4343 number_of_zeros_to_pad += n; 4344 } 4345 break; 4346 } 4347 4348 default: 4349 /* unrecognized conversion specifier, keep format string 4350 * as-is */ 4351 zero_padding = 0; /* turn zero padding off for non-numeric 4352 convers. */ 4353 justify_left = 1; 4354 min_field_width = 0; /* reset flags */ 4355 4356 /* discard the unrecognized conversion, just keep * 4357 * the unrecognized conversion character */ 4358 str_arg = p; 4359 str_arg_l = 0; 4360 if (*p != NUL) 4361 str_arg_l++; /* include invalid conversion specifier 4362 unchanged if not at end-of-string */ 4363 break; 4364 } 4365 4366 if (*p != NUL) 4367 p++; /* step over the just processed conversion specifier */ 4368 4369 /* insert padding to the left as requested by min_field_width; 4370 * this does not include the zero padding in case of numerical 4371 * conversions*/ 4372 if (!justify_left) 4373 { 4374 /* left padding with blank or zero */ 4375 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4376 4377 if (pn > 0) 4378 { 4379 if (str_l < str_m) 4380 { 4381 size_t avail = str_m - str_l; 4382 4383 vim_memset(str + str_l, zero_padding ? '0' : ' ', 4384 (size_t)pn > avail ? avail : pn); 4385 } 4386 str_l += pn; 4387 } 4388 } 4389 4390 /* zero padding as requested by the precision or by the minimal 4391 * field width for numeric conversions required? */ 4392 if (number_of_zeros_to_pad == 0) 4393 { 4394 /* will not copy first part of numeric right now, * 4395 * force it to be copied later in its entirety */ 4396 zero_padding_insertion_ind = 0; 4397 } 4398 else 4399 { 4400 /* insert first part of numerics (sign or '0x') before zero 4401 * padding */ 4402 int zn = zero_padding_insertion_ind; 4403 4404 if (zn > 0) 4405 { 4406 if (str_l < str_m) 4407 { 4408 size_t avail = str_m - str_l; 4409 4410 mch_memmove(str + str_l, str_arg, 4411 (size_t)zn > avail ? avail : zn); 4412 } 4413 str_l += zn; 4414 } 4415 4416 /* insert zero padding as requested by the precision or min 4417 * field width */ 4418 zn = number_of_zeros_to_pad; 4419 if (zn > 0) 4420 { 4421 if (str_l < str_m) 4422 { 4423 size_t avail = str_m-str_l; 4424 4425 vim_memset(str + str_l, '0', 4426 (size_t)zn > avail ? avail : zn); 4427 } 4428 str_l += zn; 4429 } 4430 } 4431 4432 /* insert formatted string 4433 * (or as-is conversion specifier for unknown conversions) */ 4434 { 4435 int sn = str_arg_l - zero_padding_insertion_ind; 4436 4437 if (sn > 0) 4438 { 4439 if (str_l < str_m) 4440 { 4441 size_t avail = str_m - str_l; 4442 4443 mch_memmove(str + str_l, 4444 str_arg + zero_padding_insertion_ind, 4445 (size_t)sn > avail ? avail : sn); 4446 } 4447 str_l += sn; 4448 } 4449 } 4450 4451 /* insert right padding */ 4452 if (justify_left) 4453 { 4454 /* right blank padding to the field width */ 4455 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4456 4457 if (pn > 0) 4458 { 4459 if (str_l < str_m) 4460 { 4461 size_t avail = str_m - str_l; 4462 4463 vim_memset(str + str_l, ' ', 4464 (size_t)pn > avail ? avail : pn); 4465 } 4466 str_l += pn; 4467 } 4468 } 4469 } 4470 } 4471 4472 if (str_m > 0) 4473 { 4474 /* make sure the string is nul-terminated even at the expense of 4475 * overwriting the last character (shouldn't happen, but just in case) 4476 * */ 4477 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 4478 } 4479 4480 #ifdef HAVE_STDARG_H 4481 if (ap == NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 4482 EMSG(_("E767: Too many arguments to printf()")); 4483 #endif 4484 4485 /* Return the number of characters formatted (excluding trailing nul 4486 * character), that is, the number of characters that would have been 4487 * written to the buffer if it were large enough. */ 4488 return (int)str_l; 4489 } 4490 4491 #endif /* PROTO */ 4492