1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * message.c: functions for displaying messages on the command line 12 */ 13 14 #define MESSAGE_FILE /* don't include prototype for smsg() */ 15 16 #include "vim.h" 17 18 static int other_sourcing_name __ARGS((void)); 19 static char_u *get_emsg_source __ARGS((void)); 20 static char_u *get_emsg_lnum __ARGS((void)); 21 static void add_msg_hist __ARGS((char_u *s, int len, int attr)); 22 static void hit_return_msg __ARGS((void)); 23 static void msg_home_replace_attr __ARGS((char_u *fname, int attr)); 24 #ifdef FEAT_MBYTE 25 static char_u *screen_puts_mbyte __ARGS((char_u *s, int l, int attr)); 26 #endif 27 static void msg_puts_attr_len __ARGS((char_u *str, int maxlen, int attr)); 28 static void msg_puts_display __ARGS((char_u *str, int maxlen, int attr, int recurse)); 29 static void msg_scroll_up __ARGS((void)); 30 static void store_sb_text __ARGS((char_u **sb_str, char_u *s, int attr, int *sb_col, int finish)); 31 static void t_puts __ARGS((int *t_col, char_u *t_s, char_u *s, int attr)); 32 static void msg_puts_printf __ARGS((char_u *str, int maxlen)); 33 static int do_more_prompt __ARGS((int typed_char)); 34 static void msg_screen_putchar __ARGS((int c, int attr)); 35 static int msg_check_screen __ARGS((void)); 36 static void redir_write __ARGS((char_u *s, int maxlen)); 37 static void verbose_write __ARGS((char_u *s, int maxlen)); 38 #ifdef FEAT_CON_DIALOG 39 static char_u *msg_show_console_dialog __ARGS((char_u *message, char_u *buttons, int dfltbutton)); 40 static int confirm_msg_used = FALSE; /* displaying confirm_msg */ 41 static char_u *confirm_msg = NULL; /* ":confirm" message */ 42 static char_u *confirm_msg_tail; /* tail of confirm_msg */ 43 #endif 44 45 struct msg_hist 46 { 47 struct msg_hist *next; 48 char_u *msg; 49 int attr; 50 }; 51 52 static struct msg_hist *first_msg_hist = NULL; 53 static struct msg_hist *last_msg_hist = NULL; 54 static int msg_hist_len = 0; 55 static int msg_hist_off = FALSE; /* don't add messages to history */ 56 57 /* 58 * When writing messages to the screen, there are many different situations. 59 * A number of variables is used to remember the current state: 60 * msg_didany TRUE when messages were written since the last time the 61 * user reacted to a prompt. 62 * Reset: After hitting a key for the hit-return prompt, 63 * hitting <CR> for the command line or input(). 64 * Set: When any message is written to the screen. 65 * msg_didout TRUE when something was written to the current line. 66 * Reset: When advancing to the next line, when the current 67 * text can be overwritten. 68 * Set: When any message is written to the screen. 69 * msg_nowait No extra delay for the last drawn message. 70 * Used in normal_cmd() before the mode message is drawn. 71 * emsg_on_display There was an error message recently. Indicates that there 72 * should be a delay before redrawing. 73 * msg_scroll The next message should not overwrite the current one. 74 * msg_scrolled How many lines the screen has been scrolled (because of 75 * messages). Used in update_screen() to scroll the screen 76 * back. Incremented each time the screen scrolls a line. 77 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 78 * writes something without scrolling should not make 79 * need_wait_return to be set. This is a hack to make ":ts" 80 * work without an extra prompt. 81 * lines_left Number of lines available for messages before the 82 * more-prompt is to be given. 83 * need_wait_return TRUE when the hit-return prompt is needed. 84 * Reset: After giving the hit-return prompt, when the user 85 * has answered some other prompt. 86 * Set: When the ruler or typeahead display is overwritten, 87 * scrolling the screen for some message. 88 * keep_msg Message to be displayed after redrawing the screen, in 89 * main_loop(). 90 * This is an allocated string or NULL when not used. 91 */ 92 93 /* 94 * msg(s) - displays the string 's' on the status line 95 * When terminal not initialized (yet) mch_errmsg(..) is used. 96 * return TRUE if wait_return not called 97 */ 98 int 99 msg(s) 100 char_u *s; 101 { 102 return msg_attr_keep(s, 0, FALSE); 103 } 104 105 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 106 || defined(PROTO) 107 /* 108 * Like msg() but keep it silent when 'verbosefile' is set. 109 */ 110 int 111 verb_msg(s) 112 char_u *s; 113 { 114 int n; 115 116 verbose_enter(); 117 n = msg_attr_keep(s, 0, FALSE); 118 verbose_leave(); 119 120 return n; 121 } 122 #endif 123 124 int 125 msg_attr(s, attr) 126 char_u *s; 127 int attr; 128 { 129 return msg_attr_keep(s, attr, FALSE); 130 } 131 132 int 133 msg_attr_keep(s, attr, keep) 134 char_u *s; 135 int attr; 136 int keep; /* TRUE: set keep_msg if it doesn't scroll */ 137 { 138 static int entered = 0; 139 int retval; 140 char_u *buf = NULL; 141 142 #ifdef FEAT_EVAL 143 if (attr == 0) 144 set_vim_var_string(VV_STATUSMSG, s, -1); 145 #endif 146 147 /* 148 * It is possible that displaying a messages causes a problem (e.g., 149 * when redrawing the window), which causes another message, etc.. To 150 * break this loop, limit the recursiveness to 3 levels. 151 */ 152 if (entered >= 3) 153 return TRUE; 154 ++entered; 155 156 /* Add message to history (unless it's a repeated kept message or a 157 * truncated message) */ 158 if (s != keep_msg 159 || (*s != '<' 160 && last_msg_hist != NULL 161 && last_msg_hist->msg != NULL 162 && STRCMP(s, last_msg_hist->msg))) 163 add_msg_hist(s, -1, attr); 164 165 /* When displaying keep_msg, don't let msg_start() free it, caller must do 166 * that. */ 167 if (s == keep_msg) 168 keep_msg = NULL; 169 170 /* Truncate the message if needed. */ 171 buf = msg_strtrunc(s); 172 if (buf != NULL) 173 s = buf; 174 175 msg_start(); 176 msg_outtrans_attr(s, attr); 177 msg_clr_eos(); 178 retval = msg_end(); 179 180 if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1) 181 * Columns + sc_col) 182 { 183 set_keep_msg(s); 184 keep_msg_attr = 0; 185 } 186 187 vim_free(buf); 188 --entered; 189 return retval; 190 } 191 192 /* 193 * Truncate a string such that it can be printed without causing a scroll. 194 * Returns an allocated string or NULL when no truncating is done. 195 */ 196 char_u * 197 msg_strtrunc(s) 198 char_u *s; 199 { 200 char_u *buf = NULL; 201 int len; 202 int room; 203 204 /* May truncate message to avoid a hit-return prompt */ 205 if (!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 206 && !exmode_active && msg_silent == 0) 207 { 208 len = vim_strsize(s); 209 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 210 if (len > room && room > 0) 211 { 212 #ifdef FEAT_MBYTE 213 if (enc_utf8) 214 /* may have up to 18 bytes per cell (6 per char, up to two 215 * composing chars) */ 216 buf = alloc((room + 2) * 18); 217 else if (enc_dbcs == DBCS_JPNU) 218 /* may have up to 2 bytes per cell for euc-jp */ 219 buf = alloc((room + 2) * 2); 220 else 221 #endif 222 buf = alloc(room + 2); 223 if (buf != NULL) 224 trunc_string(s, buf, room); 225 } 226 } 227 return buf; 228 } 229 230 /* 231 * Truncate a string "s" to "buf" with cell width "room". 232 * "s" and "buf" may be equal. 233 */ 234 void 235 trunc_string(s, buf, room) 236 char_u *s; 237 char_u *buf; 238 int room; 239 { 240 int half; 241 int len; 242 int e; 243 int i; 244 int n; 245 246 room -= 3; 247 half = room / 2; 248 len = 0; 249 250 /* First part: Start of the string. */ 251 for (e = 0; len < half; ++e) 252 { 253 if (s[e] == NUL) 254 { 255 /* text fits without truncating! */ 256 buf[e] = NUL; 257 return; 258 } 259 n = ptr2cells(s + e); 260 if (len + n >= half) 261 break; 262 len += n; 263 buf[e] = s[e]; 264 #ifdef FEAT_MBYTE 265 if (has_mbyte) 266 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 267 { 268 ++e; 269 buf[e] = s[e]; 270 } 271 #endif 272 } 273 274 /* Last part: End of the string. */ 275 i = e; 276 #ifdef FEAT_MBYTE 277 if (enc_dbcs != 0) 278 { 279 /* For DBCS going backwards in a string is slow, but 280 * computing the cell width isn't too slow: go forward 281 * until the rest fits. */ 282 n = vim_strsize(s + i); 283 while (len + n > room) 284 { 285 n -= ptr2cells(s + i); 286 i += (*mb_ptr2len)(s + i); 287 } 288 } 289 else if (enc_utf8) 290 { 291 /* For UTF-8 we can go backwards easily. */ 292 i = (int)STRLEN(s); 293 for (;;) 294 { 295 half = i - (*mb_head_off)(s, s + i - 1) - 1; 296 n = ptr2cells(s + half); 297 if (len + n > room) 298 break; 299 len += n; 300 i = half; 301 } 302 } 303 else 304 #endif 305 { 306 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 307 len += n; 308 } 309 310 /* Set the middle and copy the last part. */ 311 mch_memmove(buf + e, "...", (size_t)3); 312 mch_memmove(buf + e + 3, s + i, STRLEN(s + i) + 1); 313 } 314 315 /* 316 * Automatic prototype generation does not understand this function. 317 * Note: Caller of smgs() and smsg_attr() must check the resulting string is 318 * shorter than IOSIZE!!! 319 */ 320 #ifndef PROTO 321 # ifndef HAVE_STDARG_H 322 323 int 324 #ifdef __BORLANDC__ 325 _RTLENTRYF 326 #endif 327 smsg __ARGS((char_u *, long, long, long, 328 long, long, long, long, long, long, long)); 329 int 330 #ifdef __BORLANDC__ 331 _RTLENTRYF 332 #endif 333 smsg_attr __ARGS((int, char_u *, long, long, long, 334 long, long, long, long, long, long, long)); 335 336 int vim_snprintf __ARGS((char *, size_t, char *, long, long, long, 337 long, long, long, long, long, long, long)); 338 339 /* 340 * smsg(str, arg, ...) is like using sprintf(buf, str, arg, ...) and then 341 * calling msg(buf). 342 * The buffer used is IObuff, the message is truncated at IOSIZE. 343 */ 344 345 /* VARARGS */ 346 int 347 #ifdef __BORLANDC__ 348 _RTLENTRYF 349 #endif 350 smsg(s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 351 char_u *s; 352 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 353 { 354 return smsg_attr(0, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 355 } 356 357 /* VARARGS */ 358 int 359 #ifdef __BORLANDC__ 360 _RTLENTRYF 361 #endif 362 smsg_attr(attr, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 363 int attr; 364 char_u *s; 365 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 366 { 367 vim_snprintf((char *)IObuff, IOSIZE, (char *)s, 368 a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); 369 return msg_attr(IObuff, attr); 370 } 371 372 # else /* HAVE_STDARG_H */ 373 374 int vim_snprintf(char *str, size_t str_m, char *fmt, ...); 375 376 int 377 #ifdef __BORLANDC__ 378 _RTLENTRYF 379 #endif 380 smsg(char_u *s, ...) 381 { 382 va_list arglist; 383 384 va_start(arglist, s); 385 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 386 va_end(arglist); 387 return msg(IObuff); 388 } 389 390 int 391 #ifdef __BORLANDC__ 392 _RTLENTRYF 393 #endif 394 smsg_attr(int attr, char_u *s, ...) 395 { 396 va_list arglist; 397 398 va_start(arglist, s); 399 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL); 400 va_end(arglist); 401 return msg_attr(IObuff, attr); 402 } 403 404 # endif /* HAVE_STDARG_H */ 405 #endif 406 407 /* 408 * Remember the last sourcing name/lnum used in an error message, so that it 409 * isn't printed each time when it didn't change. 410 */ 411 static int last_sourcing_lnum = 0; 412 static char_u *last_sourcing_name = NULL; 413 414 /* 415 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 416 * for the next error message; 417 */ 418 void 419 reset_last_sourcing() 420 { 421 vim_free(last_sourcing_name); 422 last_sourcing_name = NULL; 423 last_sourcing_lnum = 0; 424 } 425 426 /* 427 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 428 */ 429 static int 430 other_sourcing_name() 431 { 432 if (sourcing_name != NULL) 433 { 434 if (last_sourcing_name != NULL) 435 return STRCMP(sourcing_name, last_sourcing_name) != 0; 436 return TRUE; 437 } 438 return FALSE; 439 } 440 441 /* 442 * Get the message about the source, as used for an error message. 443 * Returns an allocated string with room for one more character. 444 * Returns NULL when no message is to be given. 445 */ 446 static char_u * 447 get_emsg_source() 448 { 449 char_u *Buf, *p; 450 451 if (sourcing_name != NULL && other_sourcing_name()) 452 { 453 p = (char_u *)_("Error detected while processing %s:"); 454 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 455 if (Buf != NULL) 456 sprintf((char *)Buf, (char *)p, sourcing_name); 457 return Buf; 458 } 459 return NULL; 460 } 461 462 /* 463 * Get the message about the source lnum, as used for an error message. 464 * Returns an allocated string with room for one more character. 465 * Returns NULL when no message is to be given. 466 */ 467 static char_u * 468 get_emsg_lnum() 469 { 470 char_u *Buf, *p; 471 472 /* lnum is 0 when executing a command from the command line 473 * argument, we don't want a line number then */ 474 if (sourcing_name != NULL 475 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 476 && sourcing_lnum != 0) 477 { 478 p = (char_u *)_("line %4ld:"); 479 Buf = alloc((unsigned)(STRLEN(p) + 20)); 480 if (Buf != NULL) 481 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 482 return Buf; 483 } 484 return NULL; 485 } 486 487 /* 488 * Display name and line number for the source of an error. 489 * Remember the file name and line number, so that for the next error the info 490 * is only displayed if it changed. 491 */ 492 void 493 msg_source(attr) 494 int attr; 495 { 496 char_u *p; 497 498 ++no_wait_return; 499 p = get_emsg_source(); 500 if (p != NULL) 501 { 502 msg_attr(p, attr); 503 vim_free(p); 504 } 505 p = get_emsg_lnum(); 506 if (p != NULL) 507 { 508 msg_attr(p, hl_attr(HLF_N)); 509 vim_free(p); 510 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 511 } 512 513 /* remember the last sourcing name printed, also when it's empty */ 514 if (sourcing_name == NULL || other_sourcing_name()) 515 { 516 vim_free(last_sourcing_name); 517 if (sourcing_name == NULL) 518 last_sourcing_name = NULL; 519 else 520 last_sourcing_name = vim_strsave(sourcing_name); 521 } 522 --no_wait_return; 523 } 524 525 /* 526 * emsg() - display an error message 527 * 528 * Rings the bell, if appropriate, and calls message() to do the real work 529 * When terminal not initialized (yet) mch_errmsg(..) is used. 530 * 531 * return TRUE if wait_return not called 532 */ 533 int 534 emsg(s) 535 char_u *s; 536 { 537 int attr; 538 char_u *p; 539 #ifdef FEAT_EVAL 540 int ignore = FALSE; 541 int severe; 542 #endif 543 544 called_emsg = TRUE; 545 ex_exitval = 1; 546 547 /* 548 * If "emsg_severe" is TRUE: When an error exception is to be thrown, 549 * prefer this message over previous messages for the same command. 550 */ 551 #ifdef FEAT_EVAL 552 severe = emsg_severe; 553 emsg_severe = FALSE; 554 #endif 555 556 /* 557 * If "emsg_off" is set: no error messages at the moment. 558 * If 'debug' is set: do error message anyway, but without side effects. 559 * If "emsg_skip" is set: never do error messages. 560 */ 561 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL) 562 #ifdef FEAT_EVAL 563 || emsg_skip > 0 564 #endif 565 ) 566 return TRUE; 567 568 if (!emsg_off) 569 { 570 #ifdef FEAT_EVAL 571 /* 572 * Cause a throw of an error exception if appropriate. Don't display 573 * the error message in this case. (If no matching catch clause will 574 * be found, the message will be displayed later on.) "ignore" is set 575 * when the message should be ignored completely (used for the 576 * interrupt message). 577 */ 578 if (cause_errthrow(s, severe, &ignore) == TRUE) 579 { 580 if (!ignore) 581 did_emsg = TRUE; 582 return TRUE; 583 } 584 585 /* set "v:errmsg", also when using ":silent! cmd" */ 586 set_vim_var_string(VV_ERRMSG, s, -1); 587 #endif 588 589 /* 590 * When using ":silent! cmd" ignore error messsages. 591 * But do write it to the redirection file. 592 */ 593 if (emsg_silent != 0) 594 { 595 msg_start(); 596 p = get_emsg_source(); 597 if (p != NULL) 598 { 599 STRCAT(p, "\n"); 600 redir_write(p, -1); 601 vim_free(p); 602 } 603 p = get_emsg_lnum(); 604 if (p != NULL) 605 { 606 STRCAT(p, "\n"); 607 redir_write(p, -1); 608 vim_free(p); 609 } 610 redir_write(s, -1); 611 return TRUE; 612 } 613 614 /* Reset msg_silent, an error causes messages to be switched back on. */ 615 msg_silent = 0; 616 cmd_silent = FALSE; 617 618 if (global_busy) /* break :global command */ 619 ++global_busy; 620 621 if (p_eb) 622 beep_flush(); /* also includes flush_buffers() */ 623 else 624 flush_buffers(FALSE); /* flush internal buffers */ 625 did_emsg = TRUE; /* flag for DoOneCmd() */ 626 } 627 628 emsg_on_display = TRUE; /* remember there is an error message */ 629 ++msg_scroll; /* don't overwrite a previous message */ 630 attr = hl_attr(HLF_E); /* set highlight mode for error messages */ 631 if (msg_scrolled) 632 need_wait_return = TRUE; /* needed in case emsg() is called after 633 * wait_return has reset need_wait_return 634 * and a redraw is expected because 635 * msg_scrolled is non-zero */ 636 637 /* 638 * Display name and line number for the source of the error. 639 */ 640 msg_source(attr); 641 642 /* 643 * Display the error message itself. 644 */ 645 msg_nowait = FALSE; /* wait for this msg */ 646 return msg_attr(s, attr); 647 } 648 649 /* 650 * Print an error message with one "%s" and one string argument. 651 */ 652 int 653 emsg2(s, a1) 654 char_u *s, *a1; 655 { 656 return emsg3(s, a1, NULL); 657 } 658 659 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 660 661 void 662 emsg_invreg(name) 663 int name; 664 { 665 EMSG2(_("E354: Invalid register name: '%s'"), transchar(name)); 666 } 667 668 /* 669 * Like msg(), but truncate to a single line if p_shm contains 't', or when 670 * "force" is TRUE. This truncates in another way as for normal messages. 671 * Careful: The string may be changed by msg_may_trunc()! 672 * Returns a pointer to the printed message, if wait_return() not called. 673 */ 674 char_u * 675 msg_trunc_attr(s, force, attr) 676 char_u *s; 677 int force; 678 int attr; 679 { 680 int n; 681 682 /* Add message to history before truncating */ 683 add_msg_hist(s, -1, attr); 684 685 s = msg_may_trunc(force, s); 686 687 msg_hist_off = TRUE; 688 n = msg_attr(s, attr); 689 msg_hist_off = FALSE; 690 691 if (n) 692 return s; 693 return NULL; 694 } 695 696 /* 697 * Check if message "s" should be truncated at the start (for filenames). 698 * Return a pointer to where the truncated message starts. 699 * Note: May change the message by replacing a character with '<'. 700 */ 701 char_u * 702 msg_may_trunc(force, s) 703 int force; 704 char_u *s; 705 { 706 int n; 707 int room; 708 709 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 710 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 711 && (n = (int)STRLEN(s) - room) > 0) 712 { 713 #ifdef FEAT_MBYTE 714 if (has_mbyte) 715 { 716 int size = vim_strsize(s); 717 718 for (n = 0; size >= room; ) 719 { 720 size -= (*mb_ptr2cells)(s + n); 721 n += (*mb_ptr2len)(s + n); 722 } 723 --n; 724 } 725 #endif 726 s += n; 727 *s = '<'; 728 } 729 return s; 730 } 731 732 static void 733 add_msg_hist(s, len, attr) 734 char_u *s; 735 int len; /* -1 for undetermined length */ 736 int attr; 737 { 738 struct msg_hist *p; 739 740 if (msg_hist_off || msg_silent != 0) 741 return; 742 743 /* Don't let the message history get too big */ 744 while (msg_hist_len > 20) 745 (void)delete_first_msg(); 746 747 /* allocate an entry and add the message at the end of the history */ 748 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 749 if (p != NULL) 750 { 751 if (len < 0) 752 len = (int)STRLEN(s); 753 /* remove leading and trailing newlines */ 754 while (len > 0 && *s == '\n') 755 { 756 ++s; 757 --len; 758 } 759 while (len > 0 && s[len - 1] == '\n') 760 --len; 761 p->msg = vim_strnsave(s, len); 762 p->next = NULL; 763 p->attr = attr; 764 if (last_msg_hist != NULL) 765 last_msg_hist->next = p; 766 last_msg_hist = p; 767 if (first_msg_hist == NULL) 768 first_msg_hist = last_msg_hist; 769 ++msg_hist_len; 770 } 771 } 772 773 /* 774 * Delete the first (oldest) message from the history. 775 * Returns FAIL if there are no messages. 776 */ 777 int 778 delete_first_msg() 779 { 780 struct msg_hist *p; 781 782 if (msg_hist_len <= 0) 783 return FAIL; 784 p = first_msg_hist; 785 first_msg_hist = p->next; 786 vim_free(p->msg); 787 vim_free(p); 788 --msg_hist_len; 789 return OK; 790 } 791 792 /* 793 * ":messages" command. 794 */ 795 /*ARGSUSED*/ 796 void 797 ex_messages(eap) 798 exarg_T *eap; 799 { 800 struct msg_hist *p; 801 char_u *s; 802 803 msg_hist_off = TRUE; 804 805 s = mch_getenv((char_u *)"LANG"); 806 if (s != NULL && *s != NUL) 807 msg_attr((char_u *) 808 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 809 hl_attr(HLF_T)); 810 811 for (p = first_msg_hist; p != NULL; p = p->next) 812 if (p->msg != NULL) 813 msg_attr(p->msg, p->attr); 814 815 msg_hist_off = FALSE; 816 } 817 818 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 819 /* 820 * Call this after prompting the user. This will avoid a hit-return message 821 * and a delay. 822 */ 823 void 824 msg_end_prompt() 825 { 826 need_wait_return = FALSE; 827 emsg_on_display = FALSE; 828 cmdline_row = msg_row; 829 msg_col = 0; 830 msg_clr_eos(); 831 } 832 #endif 833 834 /* 835 * wait for the user to hit a key (normally a return) 836 * if 'redraw' is TRUE, clear and redraw the screen 837 * if 'redraw' is FALSE, just redraw the screen 838 * if 'redraw' is -1, don't redraw at all 839 */ 840 void 841 wait_return(redraw) 842 int redraw; 843 { 844 int c; 845 int oldState; 846 int tmpState; 847 int had_got_int; 848 849 if (redraw == TRUE) 850 must_redraw = CLEAR; 851 852 /* If using ":silent cmd", don't wait for a return. Also don't set 853 * need_wait_return to do it later. */ 854 if (msg_silent != 0) 855 return; 856 857 /* 858 * With the global command (and some others) we only need one return at the 859 * end. Adjust cmdline_row to avoid the next message overwriting the last one. 860 * When inside vgetc(), we can't wait for a typed character at all. 861 */ 862 if (vgetc_busy) 863 return; 864 if (no_wait_return) 865 { 866 need_wait_return = TRUE; 867 if (!exmode_active) 868 cmdline_row = msg_row; 869 return; 870 } 871 872 redir_off = TRUE; /* don't redirect this message */ 873 oldState = State; 874 if (quit_more) 875 { 876 c = CAR; /* just pretend CR was hit */ 877 quit_more = FALSE; 878 got_int = FALSE; 879 } 880 else if (exmode_active) 881 { 882 MSG_PUTS(" "); /* make sure the cursor is on the right line */ 883 c = CAR; /* no need for a return in ex mode */ 884 got_int = FALSE; 885 } 886 else 887 { 888 /* Make sure the hit-return prompt is on screen when 'guioptions' was 889 * just changed. */ 890 screenalloc(FALSE); 891 892 State = HITRETURN; 893 #ifdef FEAT_MOUSE 894 setmouse(); 895 #endif 896 #ifdef USE_ON_FLY_SCROLL 897 dont_scroll = TRUE; /* disallow scrolling here */ 898 #endif 899 hit_return_msg(); 900 901 do 902 { 903 /* Remember "got_int", if it is set vgetc() probably returns a 904 * CTRL-C, but we need to loop then. */ 905 had_got_int = got_int; 906 907 /* Don't do mappings here, we put the character back in the 908 * typeahead buffer. */ 909 ++no_mapping; 910 ++allow_keys; 911 c = safe_vgetc(); 912 if (had_got_int && !global_busy) 913 got_int = FALSE; 914 --no_mapping; 915 --allow_keys; 916 917 #ifdef FEAT_CLIPBOARD 918 /* Strange way to allow copying (yanking) a modeless selection at 919 * the hit-enter prompt. Use CTRL-Y, because the same is used in 920 * Cmdline-mode and it's harmless when there is no selection. */ 921 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 922 { 923 clip_copy_modeless_selection(TRUE); 924 c = K_IGNORE; 925 } 926 #endif 927 if (p_more && !p_cp && (c == 'b' || c == 'k' || c == 'u' 928 || c == 'g' || c == K_UP)) 929 { 930 /* scroll back to show older messages */ 931 do_more_prompt(c); 932 if (quit_more) 933 { 934 c = CAR; /* just pretend CR was hit */ 935 quit_more = FALSE; 936 got_int = FALSE; 937 } 938 else 939 { 940 c = K_IGNORE; 941 hit_return_msg(); 942 } 943 } 944 } while ((had_got_int && c == Ctrl_C) 945 || c == K_IGNORE 946 #ifdef FEAT_GUI 947 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 948 #endif 949 #ifdef FEAT_MOUSE 950 || c == K_LEFTDRAG || c == K_LEFTRELEASE 951 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 952 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 953 || c == K_MOUSEDOWN || c == K_MOUSEUP 954 || (!mouse_has(MOUSE_RETURN) 955 && mouse_row < msg_row 956 && (c == K_LEFTMOUSE 957 || c == K_MIDDLEMOUSE 958 || c == K_RIGHTMOUSE 959 || c == K_X1MOUSE 960 || c == K_X2MOUSE)) 961 #endif 962 ); 963 ui_breakcheck(); 964 #ifdef FEAT_MOUSE 965 /* 966 * Avoid that the mouse-up event causes visual mode to start. 967 */ 968 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 969 || c == K_X1MOUSE || c == K_X2MOUSE) 970 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 971 else 972 #endif 973 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 974 { 975 char_u buf[2]; 976 977 /* Put the character back in the typeahead buffer. Don't use the 978 * stuff buffer, because lmaps wouldn't work. */ 979 buf[0] = c; 980 buf[1] = NUL; 981 ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE); 982 do_redraw = TRUE; /* need a redraw even though there is 983 typeahead */ 984 } 985 } 986 redir_off = FALSE; 987 988 /* 989 * If the user hits ':', '?' or '/' we get a command line from the next 990 * line. 991 */ 992 if (c == ':' || c == '?' || c == '/') 993 { 994 if (!exmode_active) 995 cmdline_row = msg_row; 996 skip_redraw = TRUE; /* skip redraw once */ 997 do_redraw = FALSE; 998 } 999 1000 /* 1001 * If the window size changed set_shellsize() will redraw the screen. 1002 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1003 * typed. 1004 */ 1005 tmpState = State; 1006 State = oldState; /* restore State before set_shellsize */ 1007 #ifdef FEAT_MOUSE 1008 setmouse(); 1009 #endif 1010 msg_check(); 1011 1012 #if defined(UNIX) || defined(VMS) 1013 /* 1014 * When switching screens, we need to output an extra newline on exit. 1015 */ 1016 if (swapping_screen() && !termcap_active) 1017 newline_on_exit = TRUE; 1018 #endif 1019 1020 need_wait_return = FALSE; 1021 did_wait_return = TRUE; 1022 emsg_on_display = FALSE; /* can delete error message now */ 1023 lines_left = -1; /* reset lines_left at next msg_start() */ 1024 reset_last_sourcing(); 1025 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1026 (Rows - cmdline_row - 1) * Columns + sc_col) 1027 { 1028 vim_free(keep_msg); 1029 keep_msg = NULL; /* don't redisplay message, it's too long */ 1030 } 1031 1032 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1033 { 1034 starttermcap(); /* start termcap before redrawing */ 1035 shell_resized(); 1036 } 1037 else if (!skip_redraw 1038 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1039 { 1040 starttermcap(); /* start termcap before redrawing */ 1041 redraw_later(VALID); 1042 } 1043 } 1044 1045 /* 1046 * Write the hit-return prompt. 1047 */ 1048 static void 1049 hit_return_msg() 1050 { 1051 int save_p_more = p_more; 1052 1053 p_more = FALSE; /* don't want see this message when scrolling back */ 1054 if (msg_didout) /* start on a new line */ 1055 msg_putchar('\n'); 1056 if (got_int) 1057 MSG_PUTS(_("Interrupt: ")); 1058 1059 MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), hl_attr(HLF_R)); 1060 if (!msg_use_printf()) 1061 msg_clr_eos(); 1062 p_more = save_p_more; 1063 } 1064 1065 /* 1066 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1067 */ 1068 void 1069 set_keep_msg(s) 1070 char_u *s; 1071 { 1072 vim_free(keep_msg); 1073 if (s != NULL && msg_silent == 0) 1074 keep_msg = vim_strsave(s); 1075 else 1076 keep_msg = NULL; 1077 keep_msg_more = FALSE; 1078 } 1079 1080 /* 1081 * Prepare for outputting characters in the command line. 1082 */ 1083 void 1084 msg_start() 1085 { 1086 int did_return = FALSE; 1087 1088 vim_free(keep_msg); 1089 keep_msg = NULL; /* don't display old message now */ 1090 if (!msg_scroll && full_screen) /* overwrite last message */ 1091 { 1092 msg_row = cmdline_row; 1093 msg_col = 1094 #ifdef FEAT_RIGHTLEFT 1095 cmdmsg_rl ? Columns - 1 : 1096 #endif 1097 0; 1098 } 1099 else if (msg_didout) /* start message on next line */ 1100 { 1101 msg_putchar('\n'); 1102 did_return = TRUE; 1103 if (exmode_active != EXMODE_NORMAL) 1104 cmdline_row = msg_row; 1105 } 1106 if (!msg_didany || lines_left < 0) 1107 msg_starthere(); 1108 if (msg_silent == 0) 1109 { 1110 msg_didout = FALSE; /* no output on current line yet */ 1111 cursor_off(); 1112 } 1113 1114 /* when redirecting, may need to start a new line. */ 1115 if (!did_return) 1116 redir_write((char_u *)"\n", -1); 1117 } 1118 1119 /* 1120 * Note that the current msg position is where messages start. 1121 */ 1122 void 1123 msg_starthere() 1124 { 1125 lines_left = cmdline_row; 1126 msg_didany = FALSE; 1127 } 1128 1129 void 1130 msg_putchar(c) 1131 int c; 1132 { 1133 msg_putchar_attr(c, 0); 1134 } 1135 1136 void 1137 msg_putchar_attr(c, attr) 1138 int c; 1139 int attr; 1140 { 1141 #ifdef FEAT_MBYTE 1142 char_u buf[MB_MAXBYTES + 1]; 1143 #else 1144 char_u buf[4]; 1145 #endif 1146 1147 if (IS_SPECIAL(c)) 1148 { 1149 buf[0] = K_SPECIAL; 1150 buf[1] = K_SECOND(c); 1151 buf[2] = K_THIRD(c); 1152 buf[3] = NUL; 1153 } 1154 else 1155 { 1156 #ifdef FEAT_MBYTE 1157 buf[(*mb_char2bytes)(c, buf)] = NUL; 1158 #else 1159 buf[0] = c; 1160 buf[1] = NUL; 1161 #endif 1162 } 1163 msg_puts_attr(buf, attr); 1164 } 1165 1166 void 1167 msg_outnum(n) 1168 long n; 1169 { 1170 char_u buf[20]; 1171 1172 sprintf((char *)buf, "%ld", n); 1173 msg_puts(buf); 1174 } 1175 1176 void 1177 msg_home_replace(fname) 1178 char_u *fname; 1179 { 1180 msg_home_replace_attr(fname, 0); 1181 } 1182 1183 #if defined(FEAT_FIND_ID) || defined(PROTO) 1184 void 1185 msg_home_replace_hl(fname) 1186 char_u *fname; 1187 { 1188 msg_home_replace_attr(fname, hl_attr(HLF_D)); 1189 } 1190 #endif 1191 1192 static void 1193 msg_home_replace_attr(fname, attr) 1194 char_u *fname; 1195 int attr; 1196 { 1197 char_u *name; 1198 1199 name = home_replace_save(NULL, fname); 1200 if (name != NULL) 1201 msg_outtrans_attr(name, attr); 1202 vim_free(name); 1203 } 1204 1205 /* 1206 * Output 'len' characters in 'str' (including NULs) with translation 1207 * if 'len' is -1, output upto a NUL character. 1208 * Use attributes 'attr'. 1209 * Return the number of characters it takes on the screen. 1210 */ 1211 int 1212 msg_outtrans(str) 1213 char_u *str; 1214 { 1215 return msg_outtrans_attr(str, 0); 1216 } 1217 1218 int 1219 msg_outtrans_attr(str, attr) 1220 char_u *str; 1221 int attr; 1222 { 1223 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1224 } 1225 1226 int 1227 msg_outtrans_len(str, len) 1228 char_u *str; 1229 int len; 1230 { 1231 return msg_outtrans_len_attr(str, len, 0); 1232 } 1233 1234 /* 1235 * Output one character at "p". Return pointer to the next character. 1236 * Handles multi-byte characters. 1237 */ 1238 char_u * 1239 msg_outtrans_one(p, attr) 1240 char_u *p; 1241 int attr; 1242 { 1243 #ifdef FEAT_MBYTE 1244 int l; 1245 1246 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1247 { 1248 msg_outtrans_len_attr(p, l, attr); 1249 return p + l; 1250 } 1251 #endif 1252 msg_puts_attr(transchar_byte(*p), attr); 1253 return p + 1; 1254 } 1255 1256 int 1257 msg_outtrans_len_attr(msgstr, len, attr) 1258 char_u *msgstr; 1259 int len; 1260 int attr; 1261 { 1262 int retval = 0; 1263 char_u *str = msgstr; 1264 char_u *plain_start = msgstr; 1265 char_u *s; 1266 #ifdef FEAT_MBYTE 1267 int mb_l; 1268 int c; 1269 #endif 1270 1271 /* if MSG_HIST flag set, add message to history */ 1272 if (attr & MSG_HIST) 1273 { 1274 add_msg_hist(str, len, attr); 1275 attr &= ~MSG_HIST; 1276 } 1277 1278 #ifdef FEAT_MBYTE 1279 /* If the string starts with a composing character first draw a space on 1280 * which the composing char can be drawn. */ 1281 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1282 msg_puts_attr((char_u *)" ", attr); 1283 #endif 1284 1285 /* 1286 * Go over the string. Special characters are translated and printed. 1287 * Normal characters are printed several at a time. 1288 */ 1289 while (--len >= 0) 1290 { 1291 #ifdef FEAT_MBYTE 1292 if (enc_utf8) 1293 /* Don't include composing chars after the end. */ 1294 mb_l = utfc_ptr2len_len(str, len + 1); 1295 else if (has_mbyte) 1296 mb_l = (*mb_ptr2len)(str); 1297 else 1298 mb_l = 1; 1299 if (has_mbyte && mb_l > 1) 1300 { 1301 c = (*mb_ptr2char)(str); 1302 if (vim_isprintc(c)) 1303 /* printable multi-byte char: count the cells. */ 1304 retval += (*mb_ptr2cells)(str); 1305 else 1306 { 1307 /* unprintable multi-byte char: print the printable chars so 1308 * far and the translation of the unprintable char. */ 1309 if (str > plain_start) 1310 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1311 attr); 1312 plain_start = str + mb_l; 1313 msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr); 1314 retval += char2cells(c); 1315 } 1316 len -= mb_l - 1; 1317 str += mb_l; 1318 } 1319 else 1320 #endif 1321 { 1322 s = transchar_byte(*str); 1323 if (s[1] != NUL) 1324 { 1325 /* unprintable char: print the printable chars so far and the 1326 * translation of the unprintable char. */ 1327 if (str > plain_start) 1328 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1329 attr); 1330 plain_start = str + 1; 1331 msg_puts_attr(s, attr == 0 ? hl_attr(HLF_8) : attr); 1332 } 1333 retval += ptr2cells(str); 1334 ++str; 1335 } 1336 } 1337 1338 if (str > plain_start) 1339 /* print the printable chars at the end */ 1340 msg_puts_attr_len(plain_start, (int)(str - plain_start), attr); 1341 1342 return retval; 1343 } 1344 1345 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1346 void 1347 msg_make(arg) 1348 char_u *arg; 1349 { 1350 int i; 1351 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1352 1353 arg = skipwhite(arg); 1354 for (i = 5; *arg && i >= 0; --i) 1355 if (*arg++ != str[i]) 1356 break; 1357 if (i < 0) 1358 { 1359 msg_putchar('\n'); 1360 for (i = 0; rs[i]; ++i) 1361 msg_putchar(rs[i] - 3); 1362 } 1363 } 1364 #endif 1365 1366 /* 1367 * Output the string 'str' upto a NUL character. 1368 * Return the number of characters it takes on the screen. 1369 * 1370 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1371 * following character and shown as <F1>, <S-Up> etc. Any other character 1372 * which is not printable shown in <> form. 1373 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1374 * If a character is displayed in one of these special ways, is also 1375 * highlighted (its highlight name is '8' in the p_hl variable). 1376 * Otherwise characters are not highlighted. 1377 * This function is used to show mappings, where we want to see how to type 1378 * the character/string -- webb 1379 */ 1380 int 1381 msg_outtrans_special(strstart, from) 1382 char_u *strstart; 1383 int from; /* TRUE for lhs of a mapping */ 1384 { 1385 char_u *str = strstart; 1386 int retval = 0; 1387 char_u *string; 1388 int attr; 1389 int len; 1390 1391 attr = hl_attr(HLF_8); 1392 while (*str != NUL) 1393 { 1394 /* Leading and trailing spaces need to be displayed in <> form. */ 1395 if ((str == strstart || str[1] == NUL) && *str == ' ') 1396 { 1397 string = (char_u *)"<Space>"; 1398 ++str; 1399 } 1400 else 1401 string = str2special(&str, from); 1402 len = vim_strsize(string); 1403 /* Highlight special keys */ 1404 msg_puts_attr(string, len > 1 1405 #ifdef FEAT_MBYTE 1406 && (*mb_ptr2len)(string) <= 1 1407 #endif 1408 ? attr : 0); 1409 retval += len; 1410 } 1411 return retval; 1412 } 1413 1414 /* 1415 * Return the printable string for the key codes at "*sp". 1416 * Used for translating the lhs or rhs of a mapping to printable chars. 1417 * Advances "sp" to the next code. 1418 */ 1419 char_u * 1420 str2special(sp, from) 1421 char_u **sp; 1422 int from; /* TRUE for lhs of mapping */ 1423 { 1424 int c; 1425 static char_u buf[7]; 1426 char_u *str = *sp; 1427 int modifiers = 0; 1428 int special = FALSE; 1429 1430 #ifdef FEAT_MBYTE 1431 if (has_mbyte) 1432 { 1433 char_u *p; 1434 1435 /* Try to un-escape a multi-byte character. Return the un-escaped 1436 * string if it is a multi-byte character. */ 1437 p = mb_unescape(sp); 1438 if (p != NULL) 1439 return p; 1440 } 1441 #endif 1442 1443 c = *str; 1444 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1445 { 1446 if (str[1] == KS_MODIFIER) 1447 { 1448 modifiers = str[2]; 1449 str += 3; 1450 c = *str; 1451 } 1452 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1453 { 1454 c = TO_SPECIAL(str[1], str[2]); 1455 str += 2; 1456 if (c == K_ZERO) /* display <Nul> as ^@ */ 1457 c = NUL; 1458 } 1459 if (IS_SPECIAL(c) || modifiers) /* special key */ 1460 special = TRUE; 1461 } 1462 *sp = str + 1; 1463 1464 #ifdef FEAT_MBYTE 1465 /* For multi-byte characters check for an illegal byte. */ 1466 if (has_mbyte && MB_BYTE2LEN(*str) > (*mb_ptr2len)(str)) 1467 { 1468 transchar_nonprint(buf, c); 1469 return buf; 1470 } 1471 #endif 1472 1473 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1474 * Use <Space> only for lhs of a mapping. */ 1475 if (special || char2cells(c) > 1 || (from && c == ' ')) 1476 return get_special_key_name(c, modifiers); 1477 buf[0] = c; 1478 buf[1] = NUL; 1479 return buf; 1480 } 1481 1482 /* 1483 * Translate a key sequence into special key names. 1484 */ 1485 void 1486 str2specialbuf(sp, buf, len) 1487 char_u *sp; 1488 char_u *buf; 1489 int len; 1490 { 1491 char_u *s; 1492 1493 *buf = NUL; 1494 while (*sp) 1495 { 1496 s = str2special(&sp, FALSE); 1497 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1498 STRCAT(buf, s); 1499 } 1500 } 1501 1502 /* 1503 * print line for :print or :list command 1504 */ 1505 void 1506 msg_prt_line(s, list) 1507 char_u *s; 1508 int list; 1509 { 1510 int c; 1511 int col = 0; 1512 int n_extra = 0; 1513 int c_extra = 0; 1514 char_u *p_extra = NULL; /* init to make SASC shut up */ 1515 int n; 1516 int attr= 0; 1517 char_u *trail = NULL; 1518 #ifdef FEAT_MBYTE 1519 int l; 1520 char_u buf[MB_MAXBYTES + 1]; 1521 #endif 1522 1523 if (curwin->w_p_list) 1524 list = TRUE; 1525 1526 /* find start of trailing whitespace */ 1527 if (list && lcs_trail) 1528 { 1529 trail = s + STRLEN(s); 1530 while (trail > s && vim_iswhite(trail[-1])) 1531 --trail; 1532 } 1533 1534 /* output a space for an empty line, otherwise the line will be 1535 * overwritten */ 1536 if (*s == NUL && !(list && lcs_eol != NUL)) 1537 msg_putchar(' '); 1538 1539 while (!got_int) 1540 { 1541 if (n_extra) 1542 { 1543 --n_extra; 1544 if (c_extra) 1545 c = c_extra; 1546 else 1547 c = *p_extra++; 1548 } 1549 #ifdef FEAT_MBYTE 1550 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1551 { 1552 col += (*mb_ptr2cells)(s); 1553 mch_memmove(buf, s, (size_t)l); 1554 buf[l] = NUL; 1555 msg_puts_attr(buf, attr); 1556 s += l; 1557 continue; 1558 } 1559 #endif 1560 else 1561 { 1562 attr = 0; 1563 c = *s++; 1564 if (c == TAB && (!list || lcs_tab1)) 1565 { 1566 /* tab amount depends on current column */ 1567 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1568 if (!list) 1569 { 1570 c = ' '; 1571 c_extra = ' '; 1572 } 1573 else 1574 { 1575 c = lcs_tab1; 1576 c_extra = lcs_tab2; 1577 attr = hl_attr(HLF_8); 1578 } 1579 } 1580 else if (c == NUL && list && lcs_eol != NUL) 1581 { 1582 p_extra = (char_u *)""; 1583 c_extra = NUL; 1584 n_extra = 1; 1585 c = lcs_eol; 1586 attr = hl_attr(HLF_AT); 1587 --s; 1588 } 1589 else if (c != NUL && (n = byte2cells(c)) > 1) 1590 { 1591 n_extra = n - 1; 1592 p_extra = transchar_byte(c); 1593 c_extra = NUL; 1594 c = *p_extra++; 1595 } 1596 else if (c == ' ' && trail != NULL && s > trail) 1597 { 1598 c = lcs_trail; 1599 attr = hl_attr(HLF_8); 1600 } 1601 } 1602 1603 if (c == NUL) 1604 break; 1605 1606 msg_putchar_attr(c, attr); 1607 col++; 1608 } 1609 msg_clr_eos(); 1610 } 1611 1612 #ifdef FEAT_MBYTE 1613 /* 1614 * Use screen_puts() to output one multi-byte character. 1615 * Return the pointer "s" advanced to the next character. 1616 */ 1617 static char_u * 1618 screen_puts_mbyte(s, l, attr) 1619 char_u *s; 1620 int l; 1621 int attr; 1622 { 1623 int cw; 1624 1625 msg_didout = TRUE; /* remember that line is not empty */ 1626 cw = (*mb_ptr2cells)(s); 1627 if (cw > 1 && ( 1628 #ifdef FEAT_RIGHTLEFT 1629 cmdmsg_rl ? msg_col <= 1 : 1630 #endif 1631 msg_col == Columns - 1)) 1632 { 1633 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1634 msg_screen_putchar('>', hl_attr(HLF_AT)); 1635 return s; 1636 } 1637 1638 screen_puts_len(s, l, msg_row, msg_col, attr); 1639 #ifdef FEAT_RIGHTLEFT 1640 if (cmdmsg_rl) 1641 { 1642 msg_col -= cw; 1643 if (msg_col == 0) 1644 { 1645 msg_col = Columns; 1646 ++msg_row; 1647 } 1648 } 1649 else 1650 #endif 1651 { 1652 msg_col += cw; 1653 if (msg_col >= Columns) 1654 { 1655 msg_col = 0; 1656 ++msg_row; 1657 } 1658 } 1659 return s + l; 1660 } 1661 #endif 1662 1663 /* 1664 * Output a string to the screen at position msg_row, msg_col. 1665 * Update msg_row and msg_col for the next message. 1666 */ 1667 void 1668 msg_puts(s) 1669 char_u *s; 1670 { 1671 msg_puts_attr(s, 0); 1672 } 1673 1674 void 1675 msg_puts_title(s) 1676 char_u *s; 1677 { 1678 msg_puts_attr(s, hl_attr(HLF_T)); 1679 } 1680 1681 /* 1682 * Show a message in such a way that it always fits in the line. Cut out a 1683 * part in the middle and replace it with "..." when necessary. 1684 * Does not handle multi-byte characters! 1685 */ 1686 void 1687 msg_puts_long_attr(longstr, attr) 1688 char_u *longstr; 1689 int attr; 1690 { 1691 msg_puts_long_len_attr(longstr, (int)strlen((char *)longstr), attr); 1692 } 1693 1694 void 1695 msg_puts_long_len_attr(longstr, len, attr) 1696 char_u *longstr; 1697 int len; 1698 int attr; 1699 { 1700 int slen = len; 1701 int room; 1702 1703 room = Columns - msg_col; 1704 if (len > room && room >= 20) 1705 { 1706 slen = (room - 3) / 2; 1707 msg_outtrans_len_attr(longstr, slen, attr); 1708 msg_puts_attr((char_u *)"...", hl_attr(HLF_8)); 1709 } 1710 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 1711 } 1712 1713 /* 1714 * Basic function for writing a message with highlight attributes. 1715 */ 1716 void 1717 msg_puts_attr(s, attr) 1718 char_u *s; 1719 int attr; 1720 { 1721 msg_puts_attr_len(s, -1, attr); 1722 } 1723 1724 /* 1725 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 1726 * When "maxlen" is -1 there is no maximum length. 1727 * When "maxlen" is >= 0 the message is not put in the history. 1728 */ 1729 static void 1730 msg_puts_attr_len(str, maxlen, attr) 1731 char_u *str; 1732 int maxlen; 1733 int attr; 1734 { 1735 /* 1736 * If redirection is on, also write to the redirection file. 1737 */ 1738 redir_write(str, maxlen); 1739 1740 /* 1741 * Don't print anything when using ":silent cmd". 1742 */ 1743 if (msg_silent != 0) 1744 return; 1745 1746 /* if MSG_HIST flag set, add message to history */ 1747 if ((attr & MSG_HIST) && maxlen < 0) 1748 { 1749 add_msg_hist(str, -1, attr); 1750 attr &= ~MSG_HIST; 1751 } 1752 1753 /* 1754 * When writing something to the screen after it has scrolled, requires a 1755 * wait-return prompt later. Needed when scrolling, resetting 1756 * need_wait_return after some prompt, and then outputting something 1757 * without scrolling 1758 */ 1759 if (msg_scrolled && !msg_scrolled_ign) 1760 need_wait_return = TRUE; 1761 msg_didany = TRUE; /* remember that something was outputted */ 1762 1763 /* 1764 * If there is no valid screen, use fprintf so we can see error messages. 1765 * If termcap is not active, we may be writing in an alternate console 1766 * window, cursor positioning may not work correctly (window size may be 1767 * different, e.g. for Win32 console) or we just don't know where the 1768 * cursor is. 1769 */ 1770 if (msg_use_printf()) 1771 msg_puts_printf(str, maxlen); 1772 else 1773 msg_puts_display(str, maxlen, attr, FALSE); 1774 } 1775 1776 /* 1777 * The display part of msg_puts_attr_len(). 1778 * May be called recursively to display scroll-back text. 1779 */ 1780 static void 1781 msg_puts_display(str, maxlen, attr, recurse) 1782 char_u *str; 1783 int maxlen; 1784 int attr; 1785 int recurse; 1786 { 1787 char_u *s = str; 1788 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 1789 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 1790 #ifdef FEAT_MBYTE 1791 int l; 1792 int cw; 1793 #endif 1794 char_u *sb_str = str; 1795 int sb_col = msg_col; 1796 int wrap; 1797 1798 did_wait_return = FALSE; 1799 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 1800 { 1801 /* 1802 * We are at the end of the screen line when: 1803 * - When outputting a newline. 1804 * - When outputting a character in the last column. 1805 */ 1806 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 1807 #ifdef FEAT_RIGHTLEFT 1808 cmdmsg_rl 1809 ? ( 1810 msg_col <= 1 1811 || (*s == TAB && msg_col <= 7) 1812 # ifdef FEAT_MBYTE 1813 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2) 1814 # endif 1815 ) 1816 : 1817 #endif 1818 (msg_col + t_col >= Columns - 1 1819 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 1820 # ifdef FEAT_MBYTE 1821 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1822 && msg_col + t_col >= Columns - 2) 1823 # endif 1824 )))) 1825 { 1826 /* 1827 * The screen is scrolled up when at the last row (some terminals 1828 * scroll automatically, some don't. To avoid problems we scroll 1829 * ourselves). 1830 */ 1831 if (t_col > 0) 1832 /* output postponed text */ 1833 t_puts(&t_col, t_s, s, attr); 1834 1835 /* When no more prompt an no more room, truncate here */ 1836 if (msg_no_more && lines_left == 0) 1837 break; 1838 1839 /* Scroll the screen up one line. */ 1840 msg_scroll_up(); 1841 1842 msg_row = Rows - 2; 1843 if (msg_col >= Columns) /* can happen after screen resize */ 1844 msg_col = Columns - 1; 1845 1846 /* Display char in last column before showing more-prompt. */ 1847 if (*s >= ' ' 1848 #ifdef FEAT_RIGHTLEFT 1849 && !cmdmsg_rl 1850 #endif 1851 ) 1852 { 1853 #ifdef FEAT_MBYTE 1854 if (has_mbyte) 1855 { 1856 if (enc_utf8 && maxlen >= 0) 1857 /* avoid including composing chars after the end */ 1858 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 1859 else 1860 l = (*mb_ptr2len)(s); 1861 s = screen_puts_mbyte(s, l, attr); 1862 } 1863 else 1864 #endif 1865 msg_screen_putchar(*s++, attr); 1866 } 1867 1868 if (p_more) 1869 /* store text for scrolling back */ 1870 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1871 1872 ++msg_scrolled; 1873 need_wait_return = TRUE; /* may need wait_return in main() */ 1874 if (must_redraw < VALID) 1875 must_redraw = VALID; 1876 redraw_cmdline = TRUE; 1877 if (cmdline_row > 0 && !exmode_active) 1878 --cmdline_row; 1879 1880 /* 1881 * If screen is completely filled and 'more' is set then wait 1882 * for a character. 1883 */ 1884 if (p_more && --lines_left == 0 && State != HITRETURN 1885 && !msg_no_more && !exmode_active) 1886 { 1887 #ifdef FEAT_CON_DIALOG 1888 if (do_more_prompt(NUL)) 1889 s = confirm_msg_tail; 1890 #else 1891 (void)do_more_prompt(NUL); 1892 #endif 1893 if (quit_more) 1894 return; 1895 } 1896 } 1897 1898 wrap = *s == '\n' 1899 || msg_col + t_col >= Columns 1900 #ifdef FEAT_MBYTE 1901 || (has_mbyte && (*mb_ptr2cells)(s) > 1 1902 && msg_col + t_col >= Columns - 1) 1903 #endif 1904 ; 1905 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 1906 || *s == '\t' || *s == BELL)) 1907 /* output any postponed text */ 1908 t_puts(&t_col, t_s, s, attr); 1909 1910 if (wrap && p_more && !recurse) 1911 /* store text for scrolling back */ 1912 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 1913 1914 if (*s == '\n') /* go to next line */ 1915 { 1916 msg_didout = FALSE; /* remember that line is empty */ 1917 #ifdef FEAT_RIGHTLEFT 1918 if (cmdmsg_rl) 1919 msg_col = Columns - 1; 1920 else 1921 #endif 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_len(s, (int)((str + maxlen) - s)); 1952 else 1953 l = (*mb_ptr2len)(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 #ifdef FEAT_RIGHTLEFT 3133 if (cmdmsg_rl) 3134 while (msg_col > Columns - col) 3135 msg_putchar(' '); 3136 else 3137 #endif 3138 while (msg_col < col) 3139 msg_putchar(' '); 3140 } 3141 3142 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3143 /* 3144 * Used for "confirm()" function, and the :confirm command prefix. 3145 * Versions which haven't got flexible dialogs yet, and console 3146 * versions, get this generic handler which uses the command line. 3147 * 3148 * type = one of: 3149 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3150 * title = title string (can be NULL for default) 3151 * (neither used in console dialogs at the moment) 3152 * 3153 * Format of the "buttons" string: 3154 * "Button1Name\nButton2Name\nButton3Name" 3155 * The first button should normally be the default/accept 3156 * The second button should be the 'Cancel' button 3157 * Other buttons- use your imagination! 3158 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3159 * different letter. 3160 */ 3161 /* ARGSUSED */ 3162 int 3163 do_dialog(type, title, message, buttons, dfltbutton, textfield) 3164 int type; 3165 char_u *title; 3166 char_u *message; 3167 char_u *buttons; 3168 int dfltbutton; 3169 char_u *textfield; /* IObuff for inputdialog(), NULL otherwise */ 3170 { 3171 int oldState; 3172 int retval = 0; 3173 char_u *hotkeys; 3174 int c; 3175 int i; 3176 3177 #ifndef NO_CONSOLE 3178 /* Don't output anything in silent mode ("ex -s") */ 3179 if (silent_mode) 3180 return dfltbutton; /* return default option */ 3181 #endif 3182 3183 #ifdef FEAT_GUI_DIALOG 3184 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3185 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3186 { 3187 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3188 textfield); 3189 msg_end_prompt(); 3190 3191 /* Flush output to avoid that further messages and redrawing is done 3192 * in the wrong order. */ 3193 out_flush(); 3194 gui_mch_update(); 3195 3196 return c; 3197 } 3198 #endif 3199 3200 oldState = State; 3201 State = CONFIRM; 3202 #ifdef FEAT_MOUSE 3203 setmouse(); 3204 #endif 3205 3206 /* 3207 * Since we wait for a keypress, don't make the 3208 * user press RETURN as well afterwards. 3209 */ 3210 ++no_wait_return; 3211 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3212 3213 if (hotkeys != NULL) 3214 { 3215 for (;;) 3216 { 3217 /* Get a typed character directly from the user. */ 3218 c = get_keystroke(); 3219 switch (c) 3220 { 3221 case CAR: /* User accepts default option */ 3222 case NL: 3223 retval = dfltbutton; 3224 break; 3225 case Ctrl_C: /* User aborts/cancels */ 3226 case ESC: 3227 retval = 0; 3228 break; 3229 default: /* Could be a hotkey? */ 3230 if (c < 0) /* special keys are ignored here */ 3231 continue; 3232 /* Make the character lowercase, as chars in "hotkeys" are. */ 3233 c = MB_TOLOWER(c); 3234 retval = 1; 3235 for (i = 0; hotkeys[i]; ++i) 3236 { 3237 #ifdef FEAT_MBYTE 3238 if (has_mbyte) 3239 { 3240 if ((*mb_ptr2char)(hotkeys + i) == c) 3241 break; 3242 i += (*mb_ptr2len)(hotkeys + i) - 1; 3243 } 3244 else 3245 #endif 3246 if (hotkeys[i] == c) 3247 break; 3248 ++retval; 3249 } 3250 if (hotkeys[i]) 3251 break; 3252 /* No hotkey match, so keep waiting */ 3253 continue; 3254 } 3255 break; 3256 } 3257 3258 vim_free(hotkeys); 3259 } 3260 3261 State = oldState; 3262 #ifdef FEAT_MOUSE 3263 setmouse(); 3264 #endif 3265 --no_wait_return; 3266 msg_end_prompt(); 3267 3268 return retval; 3269 } 3270 3271 static int copy_char __ARGS((char_u *from, char_u *to, int lowercase)); 3272 3273 /* 3274 * Copy one character from "*from" to "*to", taking care of multi-byte 3275 * characters. Return the length of the character in bytes. 3276 */ 3277 static int 3278 copy_char(from, to, lowercase) 3279 char_u *from; 3280 char_u *to; 3281 int lowercase; /* make character lower case */ 3282 { 3283 #ifdef FEAT_MBYTE 3284 int len; 3285 int c; 3286 3287 if (has_mbyte) 3288 { 3289 if (lowercase) 3290 { 3291 c = MB_TOLOWER((*mb_ptr2char)(from)); 3292 return (*mb_char2bytes)(c, to); 3293 } 3294 else 3295 { 3296 len = (*mb_ptr2len)(from); 3297 mch_memmove(to, from, (size_t)len); 3298 return len; 3299 } 3300 } 3301 else 3302 #endif 3303 { 3304 if (lowercase) 3305 *to = (char_u)TOLOWER_LOC(*from); 3306 else 3307 *to = *from; 3308 return 1; 3309 } 3310 } 3311 3312 /* 3313 * Format the dialog string, and display it at the bottom of 3314 * the screen. Return a string of hotkey chars (if defined) for 3315 * each 'button'. If a button has no hotkey defined, the first character of 3316 * the button is used. 3317 * The hotkeys can be multi-byte characters, but without combining chars. 3318 * 3319 * Returns an allocated string with hotkeys, or NULL for error. 3320 */ 3321 static char_u * 3322 msg_show_console_dialog(message, buttons, dfltbutton) 3323 char_u *message; 3324 char_u *buttons; 3325 int dfltbutton; 3326 { 3327 int len = 0; 3328 #ifdef FEAT_MBYTE 3329 # define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3330 #else 3331 # define HOTK_LEN 1 3332 #endif 3333 int lenhotkey = HOTK_LEN; /* count first button */ 3334 char_u *hotk = NULL; 3335 char_u *msgp = NULL; 3336 char_u *hotkp = NULL; 3337 char_u *r; 3338 int copy; 3339 #define HAS_HOTKEY_LEN 30 3340 char_u has_hotkey[HAS_HOTKEY_LEN]; 3341 int first_hotkey = FALSE; /* first char of button is hotkey */ 3342 int idx; 3343 3344 has_hotkey[0] = FALSE; 3345 3346 /* 3347 * First loop: compute the size of memory to allocate. 3348 * Second loop: copy to the allocated memory. 3349 */ 3350 for (copy = 0; copy <= 1; ++copy) 3351 { 3352 r = buttons; 3353 idx = 0; 3354 while (*r) 3355 { 3356 if (*r == DLG_BUTTON_SEP) 3357 { 3358 if (copy) 3359 { 3360 *msgp++ = ','; 3361 *msgp++ = ' '; /* '\n' -> ', ' */ 3362 3363 /* advance to next hotkey and set default hotkey */ 3364 #ifdef FEAT_MBYTE 3365 if (has_mbyte) 3366 hotkp += (*mb_ptr2len)(hotkp); 3367 else 3368 #endif 3369 ++hotkp; 3370 (void)copy_char(r + 1, hotkp, TRUE); 3371 if (dfltbutton) 3372 --dfltbutton; 3373 3374 /* If no hotkey is specified first char is used. */ 3375 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3376 first_hotkey = TRUE; 3377 } 3378 else 3379 { 3380 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3381 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3382 if (idx < HAS_HOTKEY_LEN - 1) 3383 has_hotkey[++idx] = FALSE; 3384 } 3385 } 3386 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3387 { 3388 if (*r == DLG_HOTKEY_CHAR) 3389 ++r; 3390 first_hotkey = FALSE; 3391 if (copy) 3392 { 3393 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3394 *msgp++ = *r; 3395 else 3396 { 3397 /* '&a' -> '[a]' */ 3398 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3399 msgp += copy_char(r, msgp, FALSE); 3400 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3401 3402 /* redefine hotkey */ 3403 (void)copy_char(r, hotkp, TRUE); 3404 } 3405 } 3406 else 3407 { 3408 ++len; /* '&a' -> '[a]' */ 3409 if (idx < HAS_HOTKEY_LEN - 1) 3410 has_hotkey[idx] = TRUE; 3411 } 3412 } 3413 else 3414 { 3415 /* everything else copy literally */ 3416 if (copy) 3417 msgp += copy_char(r, msgp, FALSE); 3418 } 3419 3420 /* advance to the next character */ 3421 mb_ptr_adv(r); 3422 } 3423 3424 if (copy) 3425 { 3426 *msgp++ = ':'; 3427 *msgp++ = ' '; 3428 *msgp = NUL; 3429 mb_ptr_adv(hotkp); 3430 *hotkp = NUL; 3431 } 3432 else 3433 { 3434 len += STRLEN(message) 3435 + 2 /* for the NL's */ 3436 + STRLEN(buttons) 3437 + 3; /* for the ": " and NUL */ 3438 lenhotkey++; /* for the NUL */ 3439 3440 /* If no hotkey is specified first char is used. */ 3441 if (!has_hotkey[0]) 3442 { 3443 first_hotkey = TRUE; 3444 len += 2; /* "x" -> "[x]" */ 3445 } 3446 3447 /* 3448 * Now allocate and load the strings 3449 */ 3450 vim_free(confirm_msg); 3451 confirm_msg = alloc(len); 3452 if (confirm_msg == NULL) 3453 return NULL; 3454 *confirm_msg = NUL; 3455 hotk = alloc(lenhotkey); 3456 if (hotk == NULL) 3457 return NULL; 3458 3459 *confirm_msg = '\n'; 3460 STRCPY(confirm_msg + 1, message); 3461 3462 msgp = confirm_msg + 1 + STRLEN(message); 3463 hotkp = hotk; 3464 3465 /* define first default hotkey */ 3466 (void)copy_char(buttons, hotkp, TRUE); 3467 3468 /* Remember where the choices start, displaying starts here when 3469 * "hotkp" typed at the more prompt. */ 3470 confirm_msg_tail = msgp; 3471 *msgp++ = '\n'; 3472 } 3473 } 3474 3475 display_confirm_msg(); 3476 return hotk; 3477 } 3478 3479 /* 3480 * Display the ":confirm" message. Also called when screen resized. 3481 */ 3482 void 3483 display_confirm_msg() 3484 { 3485 /* avoid that 'q' at the more prompt truncates the message here */ 3486 ++confirm_msg_used; 3487 if (confirm_msg != NULL) 3488 msg_puts_attr(confirm_msg, hl_attr(HLF_M)); 3489 --confirm_msg_used; 3490 } 3491 3492 #endif /* FEAT_CON_DIALOG */ 3493 3494 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3495 3496 int 3497 vim_dialog_yesno(type, title, message, dflt) 3498 int type; 3499 char_u *title; 3500 char_u *message; 3501 int dflt; 3502 { 3503 if (do_dialog(type, 3504 title == NULL ? (char_u *)_("Question") : title, 3505 message, 3506 (char_u *)_("&Yes\n&No"), dflt, NULL) == 1) 3507 return VIM_YES; 3508 return VIM_NO; 3509 } 3510 3511 int 3512 vim_dialog_yesnocancel(type, title, message, dflt) 3513 int type; 3514 char_u *title; 3515 char_u *message; 3516 int dflt; 3517 { 3518 switch (do_dialog(type, 3519 title == NULL ? (char_u *)_("Question") : title, 3520 message, 3521 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL)) 3522 { 3523 case 1: return VIM_YES; 3524 case 2: return VIM_NO; 3525 } 3526 return VIM_CANCEL; 3527 } 3528 3529 int 3530 vim_dialog_yesnoallcancel(type, title, message, dflt) 3531 int type; 3532 char_u *title; 3533 char_u *message; 3534 int dflt; 3535 { 3536 switch (do_dialog(type, 3537 title == NULL ? (char_u *)"Question" : title, 3538 message, 3539 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3540 dflt, NULL)) 3541 { 3542 case 1: return VIM_YES; 3543 case 2: return VIM_NO; 3544 case 3: return VIM_ALL; 3545 case 4: return VIM_DISCARDALL; 3546 } 3547 return VIM_CANCEL; 3548 } 3549 3550 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3551 3552 #if defined(FEAT_BROWSE) || defined(PROTO) 3553 /* 3554 * Generic browse function. Calls gui_mch_browse() when possible. 3555 * Later this may pop-up a non-GUI file selector (external command?). 3556 */ 3557 char_u * 3558 do_browse(flags, title, dflt, ext, initdir, filter, buf) 3559 int flags; /* BROWSE_SAVE and BROWSE_DIR */ 3560 char_u *title; /* title for the window */ 3561 char_u *dflt; /* default file name (may include directory) */ 3562 char_u *ext; /* extension added */ 3563 char_u *initdir; /* initial directory, NULL for current dir or 3564 when using path from "dflt" */ 3565 char_u *filter; /* file name filter */ 3566 buf_T *buf; /* buffer to read/write for */ 3567 { 3568 char_u *fname; 3569 static char_u *last_dir = NULL; /* last used directory */ 3570 char_u *tofree = NULL; 3571 int save_browse = cmdmod.browse; 3572 3573 /* Must turn off browse to avoid that autocommands will get the 3574 * flag too! */ 3575 cmdmod.browse = FALSE; 3576 3577 if (title == NULL || *title == NUL) 3578 { 3579 if (flags & BROWSE_DIR) 3580 title = (char_u *)_("Select Directory dialog"); 3581 else if (flags & BROWSE_SAVE) 3582 title = (char_u *)_("Save File dialog"); 3583 else 3584 title = (char_u *)_("Open File dialog"); 3585 } 3586 3587 /* When no directory specified, use default file name, default dir, buffer 3588 * dir, last dir or current dir */ 3589 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 3590 { 3591 if (mch_isdir(dflt)) /* default file name is a directory */ 3592 { 3593 initdir = dflt; 3594 dflt = NULL; 3595 } 3596 else if (gettail(dflt) != dflt) /* default file name includes a path */ 3597 { 3598 tofree = vim_strsave(dflt); 3599 if (tofree != NULL) 3600 { 3601 initdir = tofree; 3602 *gettail(initdir) = NUL; 3603 dflt = gettail(dflt); 3604 } 3605 } 3606 } 3607 3608 if (initdir == NULL || *initdir == NUL) 3609 { 3610 /* When 'browsedir' is a directory, use it */ 3611 if (STRCMP(p_bsdir, "last") != 0 3612 && STRCMP(p_bsdir, "buffer") != 0 3613 && STRCMP(p_bsdir, "current") != 0 3614 && mch_isdir(p_bsdir)) 3615 initdir = p_bsdir; 3616 /* When saving or 'browsedir' is "buffer", use buffer fname */ 3617 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 3618 && buf != NULL && buf->b_ffname != NULL) 3619 { 3620 if (dflt == NULL || *dflt == NUL) 3621 dflt = gettail(curbuf->b_ffname); 3622 tofree = vim_strsave(curbuf->b_ffname); 3623 if (tofree != NULL) 3624 { 3625 initdir = tofree; 3626 *gettail(initdir) = NUL; 3627 } 3628 } 3629 /* When 'browsedir' is "last", use dir from last browse */ 3630 else if (*p_bsdir == 'l') 3631 initdir = last_dir; 3632 /* When 'browsedir is "current", use current directory. This is the 3633 * default already, leave initdir empty. */ 3634 } 3635 3636 # ifdef FEAT_GUI 3637 if (gui.in_use) /* when this changes, also adjust f_has()! */ 3638 { 3639 if (filter == NULL 3640 # ifdef FEAT_EVAL 3641 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 3642 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 3643 # endif 3644 ) 3645 filter = BROWSE_FILTER_DEFAULT; 3646 if (flags & BROWSE_DIR) 3647 { 3648 # if defined(HAVE_GTK2) || defined(WIN3264) 3649 /* For systems that have a directory dialog. */ 3650 fname = gui_mch_browsedir(title, initdir); 3651 # else 3652 /* Generic solution for selecting a directory: select a file and 3653 * remove the file name. */ 3654 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 3655 # endif 3656 # if !defined(HAVE_GTK2) 3657 /* Win32 adds a dummy file name, others return an arbitrary file 3658 * name. GTK+ 2 returns only the directory, */ 3659 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 3660 { 3661 /* Remove the file name. */ 3662 char_u *tail = gettail_sep(fname); 3663 3664 if (tail == fname) 3665 *tail++ = '.'; /* use current dir */ 3666 *tail = NUL; 3667 } 3668 # endif 3669 } 3670 else 3671 fname = gui_mch_browse(flags & BROWSE_SAVE, 3672 title, dflt, ext, initdir, filter); 3673 3674 /* We hang around in the dialog for a while, the user might do some 3675 * things to our files. The Win32 dialog allows deleting or renaming 3676 * a file, check timestamps. */ 3677 need_check_timestamps = TRUE; 3678 did_check_timestamps = FALSE; 3679 } 3680 else 3681 # endif 3682 { 3683 /* TODO: non-GUI file selector here */ 3684 EMSG(_("E338: Sorry, no file browser in console mode")); 3685 fname = NULL; 3686 } 3687 3688 /* keep the directory for next time */ 3689 if (fname != NULL) 3690 { 3691 vim_free(last_dir); 3692 last_dir = vim_strsave(fname); 3693 if (last_dir != NULL && !(flags & BROWSE_DIR)) 3694 { 3695 *gettail(last_dir) = NUL; 3696 if (*last_dir == NUL) 3697 { 3698 /* filename only returned, must be in current dir */ 3699 vim_free(last_dir); 3700 last_dir = alloc(MAXPATHL); 3701 if (last_dir != NULL) 3702 mch_dirname(last_dir, MAXPATHL); 3703 } 3704 } 3705 } 3706 3707 vim_free(tofree); 3708 cmdmod.browse = save_browse; 3709 3710 return fname; 3711 } 3712 #endif 3713 3714 #if defined(HAVE_STDARG_H) && defined(FEAT_EVAL) 3715 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 3716 3717 static long tv_nr __ARGS((typval_T *tvs, int *idxp)); 3718 static char *tv_str __ARGS((typval_T *tvs, int *idxp)); 3719 3720 /* 3721 * Get number argument from "idxp" entry in "tvs". First entry is 1. 3722 */ 3723 static long 3724 tv_nr(tvs, idxp) 3725 typval_T *tvs; 3726 int *idxp; 3727 { 3728 int idx = *idxp - 1; 3729 long n = 0; 3730 int err = FALSE; 3731 3732 if (tvs[idx].v_type == VAR_UNKNOWN) 3733 EMSG(_(e_printf)); 3734 else 3735 { 3736 ++*idxp; 3737 n = get_tv_number_chk(&tvs[idx], &err); 3738 if (err) 3739 n = 0; 3740 } 3741 return n; 3742 } 3743 3744 /* 3745 * Get string argument from "idxp" entry in "tvs". First entry is 1. 3746 */ 3747 static char * 3748 tv_str(tvs, idxp) 3749 typval_T *tvs; 3750 int *idxp; 3751 { 3752 int idx = *idxp - 1; 3753 char *s = NULL; 3754 3755 if (tvs[idx].v_type == VAR_UNKNOWN) 3756 EMSG(_(e_printf)); 3757 else 3758 { 3759 ++*idxp; 3760 s = (char *)get_tv_string_chk(&tvs[idx]); 3761 } 3762 return s; 3763 } 3764 #endif 3765 3766 /* 3767 * This code was included to provide a portable vsnprintf() and snprintf(). 3768 * Some systems may provide their own, but we always use these for 3769 * consistency. 3770 * 3771 * This code is based on snprintf.c - a portable implementation of snprintf 3772 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 3773 * Included with permission. It was heavely modified to fit in Vim. 3774 * The original code, including useful comments, can be found here: 3775 * http://www.ijs.si/software/snprintf/ 3776 * 3777 * This snprintf() only supports the following conversion specifiers: 3778 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 3779 * with flags: '-', '+', ' ', '0' and '#'. 3780 * An asterisk is supported for field width as well as precision. 3781 * 3782 * Length modifiers 'h' (short int) and 'l' (long int) are supported. 3783 * 'll' (long long int) is not supported. 3784 * 3785 * The locale is not used, the string is used as a byte string. This is only 3786 * relevant for double-byte encodings where the second byte may be '%'. 3787 * 3788 * It is permitted for str_m to be zero, and it is permitted to specify NULL 3789 * pointer for resulting string argument if str_m is zero (as per ISO C99). 3790 * 3791 * The return value is the number of characters which would be generated 3792 * for the given input, excluding the trailing null. If this value 3793 * is greater or equal to str_m, not all characters from the result 3794 * have been stored in str, output bytes beyond the (str_m-1) -th character 3795 * are discarded. If str_m is greater than zero it is guaranteed 3796 * the resulting string will be null-terminated. 3797 */ 3798 3799 /* 3800 * When va_list is not supported we only define vim_snprintf(). 3801 * 3802 * vim_vsnprintf() can be invoked with either "va_list" or a list of 3803 * "typval_T". The other must be NULL. 3804 */ 3805 3806 /* When generating prototypes all of this is skipped, cproto doesn't 3807 * understand this. */ 3808 #ifndef PROTO 3809 # ifdef HAVE_STDARG_H 3810 int 3811 vim_snprintf(char *str, size_t str_m, char *fmt, ...) 3812 { 3813 va_list ap; 3814 int str_l; 3815 3816 va_start(ap, fmt); 3817 str_l = vim_vsnprintf(str, str_m, fmt, ap, NULL); 3818 va_end(ap); 3819 return str_l; 3820 } 3821 3822 int 3823 vim_vsnprintf(str, str_m, fmt, ap, tvs) 3824 # else 3825 /* clumsy way to work around missing va_list */ 3826 # 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) 3827 3828 /* VARARGS */ 3829 int 3830 #ifdef __BORLANDC__ 3831 _RTLENTRYF 3832 #endif 3833 vim_snprintf(str, str_m, fmt, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) 3834 # endif 3835 char *str; 3836 size_t str_m; 3837 char *fmt; 3838 # ifdef HAVE_STDARG_H 3839 va_list ap; 3840 typval_T *tvs; 3841 # else 3842 long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10; 3843 # endif 3844 { 3845 size_t str_l = 0; 3846 char *p = fmt; 3847 int arg_idx = 1; 3848 3849 if (p == NULL) 3850 p = ""; 3851 while (*p != NUL) 3852 { 3853 if (*p != '%') 3854 { 3855 char *q = strchr(p + 1, '%'); 3856 size_t n = (q == NULL) ? STRLEN(p) : (q - p); 3857 3858 /* Copy up to the next '%' or NUL without any changes. */ 3859 if (str_l < str_m) 3860 { 3861 size_t avail = str_m - str_l; 3862 3863 mch_memmove(str + str_l, p, n > avail ? avail : n); 3864 } 3865 p += n; 3866 str_l += n; 3867 } 3868 else 3869 { 3870 size_t min_field_width = 0, precision = 0; 3871 int zero_padding = 0, precision_specified = 0, justify_left = 0; 3872 int alternate_form = 0, force_sign = 0; 3873 3874 /* If both the ' ' and '+' flags appear, the ' ' flag should be 3875 * ignored. */ 3876 int space_for_positive = 1; 3877 3878 /* allowed values: \0, h, l, L */ 3879 char length_modifier = '\0'; 3880 3881 /* temporary buffer for simple numeric->string conversion */ 3882 char tmp[32]; 3883 3884 /* string address in case of string argument */ 3885 char *str_arg; 3886 3887 /* natural field width of arg without padding and sign */ 3888 size_t str_arg_l; 3889 3890 /* unsigned char argument value - only defined for c conversion. 3891 * N.B. standard explicitly states the char argument for the c 3892 * conversion is unsigned */ 3893 unsigned char uchar_arg; 3894 3895 /* number of zeros to be inserted for numeric conversions as 3896 * required by the precision or minimal field width */ 3897 size_t number_of_zeros_to_pad = 0; 3898 3899 /* index into tmp where zero padding is to be inserted */ 3900 size_t zero_padding_insertion_ind = 0; 3901 3902 /* current conversion specifier character */ 3903 char fmt_spec = '\0'; 3904 3905 str_arg = NULL; 3906 p++; /* skip '%' */ 3907 3908 /* parse flags */ 3909 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 3910 || *p == '#' || *p == '\'') 3911 { 3912 switch (*p) 3913 { 3914 case '0': zero_padding = 1; break; 3915 case '-': justify_left = 1; break; 3916 case '+': force_sign = 1; space_for_positive = 0; break; 3917 case ' ': force_sign = 1; 3918 /* If both the ' ' and '+' flags appear, the ' ' 3919 * flag should be ignored */ 3920 break; 3921 case '#': alternate_form = 1; break; 3922 case '\'': break; 3923 } 3924 p++; 3925 } 3926 /* If the '0' and '-' flags both appear, the '0' flag should be 3927 * ignored. */ 3928 3929 /* parse field width */ 3930 if (*p == '*') 3931 { 3932 int j; 3933 3934 p++; 3935 j = 3936 #ifndef HAVE_STDARG_H 3937 get_a_arg(arg_idx); 3938 #else 3939 # if defined(FEAT_EVAL) 3940 ap == NULL ? tv_nr(tvs, &arg_idx) : 3941 # endif 3942 va_arg(ap, int); 3943 #endif 3944 if (j >= 0) 3945 min_field_width = j; 3946 else 3947 { 3948 min_field_width = -j; 3949 justify_left = 1; 3950 } 3951 } 3952 else if (VIM_ISDIGIT((int)(*p))) 3953 { 3954 /* size_t could be wider than unsigned int; make sure we treat 3955 * argument like common implementations do */ 3956 unsigned int uj = *p++ - '0'; 3957 3958 while (VIM_ISDIGIT((int)(*p))) 3959 uj = 10 * uj + (unsigned int)(*p++ - '0'); 3960 min_field_width = uj; 3961 } 3962 3963 /* parse precision */ 3964 if (*p == '.') 3965 { 3966 p++; 3967 precision_specified = 1; 3968 if (*p == '*') 3969 { 3970 int j; 3971 3972 j = 3973 #ifndef HAVE_STDARG_H 3974 get_a_arg(arg_idx); 3975 #else 3976 # if defined(FEAT_EVAL) 3977 ap == NULL ? tv_nr(tvs, &arg_idx) : 3978 # endif 3979 va_arg(ap, int); 3980 #endif 3981 p++; 3982 if (j >= 0) 3983 precision = j; 3984 else 3985 { 3986 precision_specified = 0; 3987 precision = 0; 3988 } 3989 } 3990 else if (VIM_ISDIGIT((int)(*p))) 3991 { 3992 /* size_t could be wider than unsigned int; make sure we 3993 * treat argument like common implementations do */ 3994 unsigned int uj = *p++ - '0'; 3995 3996 while (VIM_ISDIGIT((int)(*p))) 3997 uj = 10 * uj + (unsigned int)(*p++ - '0'); 3998 precision = uj; 3999 } 4000 } 4001 4002 /* parse 'h', 'l' and 'll' length modifiers */ 4003 if (*p == 'h' || *p == 'l') 4004 { 4005 length_modifier = *p; 4006 p++; 4007 if (length_modifier == 'l' && *p == 'l') 4008 { 4009 /* double l = long long */ 4010 length_modifier = 'l'; /* treat it as a single 'l' */ 4011 p++; 4012 } 4013 } 4014 fmt_spec = *p; 4015 4016 /* common synonyms: */ 4017 switch (fmt_spec) 4018 { 4019 case 'i': fmt_spec = 'd'; break; 4020 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4021 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4022 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4023 default: break; 4024 } 4025 4026 /* get parameter value, do initial processing */ 4027 switch (fmt_spec) 4028 { 4029 /* '%' and 'c' behave similar to 's' regarding flags and field 4030 * widths */ 4031 case '%': 4032 case 'c': 4033 case 's': 4034 length_modifier = '\0'; 4035 zero_padding = 0; /* turn zero padding off for string 4036 conversions */ 4037 str_arg_l = 1; 4038 switch (fmt_spec) 4039 { 4040 case '%': 4041 str_arg = p; 4042 break; 4043 4044 case 'c': 4045 { 4046 int j; 4047 4048 j = 4049 #ifndef HAVE_STDARG_H 4050 get_a_arg(arg_idx); 4051 #else 4052 # if defined(FEAT_EVAL) 4053 ap == NULL ? tv_nr(tvs, &arg_idx) : 4054 # endif 4055 va_arg(ap, int); 4056 #endif 4057 /* standard demands unsigned char */ 4058 uchar_arg = (unsigned char)j; 4059 str_arg = (char *)&uchar_arg; 4060 break; 4061 } 4062 4063 case 's': 4064 str_arg = 4065 #ifndef HAVE_STDARG_H 4066 (char *)get_a_arg(arg_idx); 4067 #else 4068 # if defined(FEAT_EVAL) 4069 ap == NULL ? tv_str(tvs, &arg_idx) : 4070 # endif 4071 va_arg(ap, char *); 4072 #endif 4073 if (str_arg == NULL) 4074 { 4075 str_arg = "[NULL]"; 4076 str_arg_l = 6; 4077 } 4078 /* make sure not to address string beyond the specified 4079 * precision !!! */ 4080 else if (!precision_specified) 4081 str_arg_l = strlen(str_arg); 4082 /* truncate string if necessary as requested by precision */ 4083 else if (precision == 0) 4084 str_arg_l = 0; 4085 else 4086 { 4087 /* memchr on HP does not like n > 2^31 !!! */ 4088 char *q = memchr(str_arg, '\0', 4089 precision <= 0x7fffffff ? precision 4090 : 0x7fffffff); 4091 str_arg_l = (q == NULL) ? precision : q - str_arg; 4092 } 4093 break; 4094 4095 default: 4096 break; 4097 } 4098 break; 4099 4100 case 'd': case 'u': case 'o': case 'x': case 'X': case 'p': 4101 { 4102 /* NOTE: the u, o, x, X and p conversion specifiers 4103 * imply the value is unsigned; d implies a signed 4104 * value */ 4105 4106 /* 0 if numeric argument is zero (or if pointer is 4107 * NULL for 'p'), +1 if greater than zero (or nonzero 4108 * for unsigned arguments), -1 if negative (unsigned 4109 * argument is never negative) */ 4110 int arg_sign = 0; 4111 4112 /* only defined for length modifier h, or for no 4113 * length modifiers */ 4114 int int_arg = 0; 4115 unsigned int uint_arg = 0; 4116 4117 /* only defined for length modifier l */ 4118 long int long_arg = 0; 4119 unsigned long int ulong_arg = 0; 4120 4121 /* pointer argument value -only defined for p 4122 * conversion */ 4123 void *ptr_arg = NULL; 4124 4125 if (fmt_spec == 'p') 4126 { 4127 length_modifier = '\0'; 4128 ptr_arg = 4129 #ifndef HAVE_STDARG_H 4130 (void *)get_a_arg(arg_idx); 4131 #else 4132 # if defined(FEAT_EVAL) 4133 ap == NULL ? (void *)tv_str(tvs, &arg_idx) : 4134 # endif 4135 va_arg(ap, void *); 4136 #endif 4137 if (ptr_arg != NULL) 4138 arg_sign = 1; 4139 } 4140 else if (fmt_spec == 'd') 4141 { 4142 /* signed */ 4143 switch (length_modifier) 4144 { 4145 case '\0': 4146 case 'h': 4147 /* char and short arguments are passed as int. */ 4148 int_arg = 4149 #ifndef HAVE_STDARG_H 4150 get_a_arg(arg_idx); 4151 #else 4152 # if defined(FEAT_EVAL) 4153 ap == NULL ? tv_nr(tvs, &arg_idx) : 4154 # endif 4155 va_arg(ap, int); 4156 #endif 4157 if (int_arg > 0) 4158 arg_sign = 1; 4159 else if (int_arg < 0) 4160 arg_sign = -1; 4161 break; 4162 case 'l': 4163 long_arg = 4164 #ifndef HAVE_STDARG_H 4165 get_a_arg(arg_idx); 4166 #else 4167 # if defined(FEAT_EVAL) 4168 ap == NULL ? tv_nr(tvs, &arg_idx) : 4169 # endif 4170 va_arg(ap, long int); 4171 #endif 4172 if (long_arg > 0) 4173 arg_sign = 1; 4174 else if (long_arg < 0) 4175 arg_sign = -1; 4176 break; 4177 } 4178 } 4179 else 4180 { 4181 /* unsigned */ 4182 switch (length_modifier) 4183 { 4184 case '\0': 4185 case 'h': 4186 uint_arg = 4187 #ifndef HAVE_STDARG_H 4188 get_a_arg(arg_idx); 4189 #else 4190 # if defined(FEAT_EVAL) 4191 ap == NULL ? tv_nr(tvs, &arg_idx) : 4192 # endif 4193 va_arg(ap, unsigned int); 4194 #endif 4195 if (uint_arg != 0) 4196 arg_sign = 1; 4197 break; 4198 case 'l': 4199 ulong_arg = 4200 #ifndef HAVE_STDARG_H 4201 get_a_arg(arg_idx); 4202 #else 4203 # if defined(FEAT_EVAL) 4204 ap == NULL ? tv_nr(tvs, &arg_idx) : 4205 # endif 4206 va_arg(ap, unsigned long int); 4207 #endif 4208 if (ulong_arg != 0) 4209 arg_sign = 1; 4210 break; 4211 } 4212 } 4213 4214 str_arg = tmp; 4215 str_arg_l = 0; 4216 4217 /* NOTE: 4218 * For d, i, u, o, x, and X conversions, if precision is 4219 * specified, the '0' flag should be ignored. This is so 4220 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4221 * FreeBSD, NetBSD; but not with Perl. 4222 */ 4223 if (precision_specified) 4224 zero_padding = 0; 4225 if (fmt_spec == 'd') 4226 { 4227 if (force_sign && arg_sign >= 0) 4228 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4229 /* leave negative numbers for sprintf to handle, to 4230 * avoid handling tricky cases like (short int)-32768 */ 4231 } 4232 else if (alternate_form) 4233 { 4234 if (arg_sign != 0 4235 && (fmt_spec == 'x' || fmt_spec == 'X') ) 4236 { 4237 tmp[str_arg_l++] = '0'; 4238 tmp[str_arg_l++] = fmt_spec; 4239 } 4240 /* alternate form should have no effect for p 4241 * conversion, but ... */ 4242 } 4243 4244 zero_padding_insertion_ind = str_arg_l; 4245 if (!precision_specified) 4246 precision = 1; /* default precision is 1 */ 4247 if (precision == 0 && arg_sign == 0) 4248 { 4249 /* When zero value is formatted with an explicit 4250 * precision 0, the resulting formatted string is 4251 * empty (d, i, u, o, x, X, p). */ 4252 } 4253 else 4254 { 4255 char f[5]; 4256 int f_l = 0; 4257 4258 /* construct a simple format string for sprintf */ 4259 f[f_l++] = '%'; 4260 if (!length_modifier) 4261 ; 4262 else if (length_modifier == '2') 4263 { 4264 f[f_l++] = 'l'; 4265 f[f_l++] = 'l'; 4266 } 4267 else 4268 f[f_l++] = length_modifier; 4269 f[f_l++] = fmt_spec; 4270 f[f_l++] = '\0'; 4271 4272 if (fmt_spec == 'p') 4273 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4274 else if (fmt_spec == 'd') 4275 { 4276 /* signed */ 4277 switch (length_modifier) 4278 { 4279 case '\0': 4280 case 'h': str_arg_l += sprintf( 4281 tmp + str_arg_l, f, int_arg); 4282 break; 4283 case 'l': str_arg_l += sprintf( 4284 tmp + str_arg_l, f, long_arg); 4285 break; 4286 } 4287 } 4288 else 4289 { 4290 /* unsigned */ 4291 switch (length_modifier) 4292 { 4293 case '\0': 4294 case 'h': str_arg_l += sprintf( 4295 tmp + str_arg_l, f, uint_arg); 4296 break; 4297 case 'l': str_arg_l += sprintf( 4298 tmp + str_arg_l, f, ulong_arg); 4299 break; 4300 } 4301 } 4302 4303 /* include the optional minus sign and possible 4304 * "0x" in the region before the zero padding 4305 * insertion point */ 4306 if (zero_padding_insertion_ind < str_arg_l 4307 && tmp[zero_padding_insertion_ind] == '-') 4308 zero_padding_insertion_ind++; 4309 if (zero_padding_insertion_ind + 1 < str_arg_l 4310 && tmp[zero_padding_insertion_ind] == '0' 4311 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4312 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4313 zero_padding_insertion_ind += 2; 4314 } 4315 4316 { 4317 size_t num_of_digits = str_arg_l 4318 - zero_padding_insertion_ind; 4319 4320 if (alternate_form && fmt_spec == 'o' 4321 /* unless zero is already the first 4322 * character */ 4323 && !(zero_padding_insertion_ind < str_arg_l 4324 && tmp[zero_padding_insertion_ind] == '0')) 4325 { 4326 /* assure leading zero for alternate-form 4327 * octal numbers */ 4328 if (!precision_specified 4329 || precision < num_of_digits + 1) 4330 { 4331 /* precision is increased to force the 4332 * first character to be zero, except if a 4333 * zero value is formatted with an 4334 * explicit precision of zero */ 4335 precision = num_of_digits + 1; 4336 precision_specified = 1; 4337 } 4338 } 4339 /* zero padding to specified precision? */ 4340 if (num_of_digits < precision) 4341 number_of_zeros_to_pad = precision - num_of_digits; 4342 } 4343 /* zero padding to specified minimal field width? */ 4344 if (!justify_left && zero_padding) 4345 { 4346 int n = min_field_width - (str_arg_l 4347 + number_of_zeros_to_pad); 4348 if (n > 0) 4349 number_of_zeros_to_pad += n; 4350 } 4351 break; 4352 } 4353 4354 default: 4355 /* unrecognized conversion specifier, keep format string 4356 * as-is */ 4357 zero_padding = 0; /* turn zero padding off for non-numeric 4358 convers. */ 4359 justify_left = 1; 4360 min_field_width = 0; /* reset flags */ 4361 4362 /* discard the unrecognized conversion, just keep * 4363 * the unrecognized conversion character */ 4364 str_arg = p; 4365 str_arg_l = 0; 4366 if (*p != NUL) 4367 str_arg_l++; /* include invalid conversion specifier 4368 unchanged if not at end-of-string */ 4369 break; 4370 } 4371 4372 if (*p != NUL) 4373 p++; /* step over the just processed conversion specifier */ 4374 4375 /* insert padding to the left as requested by min_field_width; 4376 * this does not include the zero padding in case of numerical 4377 * conversions*/ 4378 if (!justify_left) 4379 { 4380 /* left padding with blank or zero */ 4381 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4382 4383 if (pn > 0) 4384 { 4385 if (str_l < str_m) 4386 { 4387 size_t avail = str_m - str_l; 4388 4389 vim_memset(str + str_l, zero_padding ? '0' : ' ', 4390 (size_t)pn > avail ? avail : pn); 4391 } 4392 str_l += pn; 4393 } 4394 } 4395 4396 /* zero padding as requested by the precision or by the minimal 4397 * field width for numeric conversions required? */ 4398 if (number_of_zeros_to_pad == 0) 4399 { 4400 /* will not copy first part of numeric right now, * 4401 * force it to be copied later in its entirety */ 4402 zero_padding_insertion_ind = 0; 4403 } 4404 else 4405 { 4406 /* insert first part of numerics (sign or '0x') before zero 4407 * padding */ 4408 int zn = zero_padding_insertion_ind; 4409 4410 if (zn > 0) 4411 { 4412 if (str_l < str_m) 4413 { 4414 size_t avail = str_m - str_l; 4415 4416 mch_memmove(str + str_l, str_arg, 4417 (size_t)zn > avail ? avail : zn); 4418 } 4419 str_l += zn; 4420 } 4421 4422 /* insert zero padding as requested by the precision or min 4423 * field width */ 4424 zn = number_of_zeros_to_pad; 4425 if (zn > 0) 4426 { 4427 if (str_l < str_m) 4428 { 4429 size_t avail = str_m-str_l; 4430 4431 vim_memset(str + str_l, '0', 4432 (size_t)zn > avail ? avail : zn); 4433 } 4434 str_l += zn; 4435 } 4436 } 4437 4438 /* insert formatted string 4439 * (or as-is conversion specifier for unknown conversions) */ 4440 { 4441 int sn = str_arg_l - zero_padding_insertion_ind; 4442 4443 if (sn > 0) 4444 { 4445 if (str_l < str_m) 4446 { 4447 size_t avail = str_m - str_l; 4448 4449 mch_memmove(str + str_l, 4450 str_arg + zero_padding_insertion_ind, 4451 (size_t)sn > avail ? avail : sn); 4452 } 4453 str_l += sn; 4454 } 4455 } 4456 4457 /* insert right padding */ 4458 if (justify_left) 4459 { 4460 /* right blank padding to the field width */ 4461 int pn = min_field_width - (str_arg_l + number_of_zeros_to_pad); 4462 4463 if (pn > 0) 4464 { 4465 if (str_l < str_m) 4466 { 4467 size_t avail = str_m - str_l; 4468 4469 vim_memset(str + str_l, ' ', 4470 (size_t)pn > avail ? avail : pn); 4471 } 4472 str_l += pn; 4473 } 4474 } 4475 } 4476 } 4477 4478 if (str_m > 0) 4479 { 4480 /* make sure the string is nul-terminated even at the expense of 4481 * overwriting the last character (shouldn't happen, but just in case) 4482 * */ 4483 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 4484 } 4485 4486 #ifdef HAVE_STDARG_H 4487 if (ap == NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 4488 EMSG(_("E767: Too many arguments to printf()")); 4489 #endif 4490 4491 /* Return the number of characters formatted (excluding trailing nul 4492 * character), that is, the number of characters that would have been 4493 * written to the buffer if it were large enough. */ 4494 return (int)str_l; 4495 } 4496 4497 #endif /* PROTO */ 4498