1 /* vi:set ts=8 sts=4 sw=4 noet: 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 #define USING_FLOAT_STUFF 16 17 #include "vim.h" 18 19 static int other_sourcing_name(void); 20 static char_u *get_emsg_source(void); 21 static char_u *get_emsg_lnum(void); 22 static void add_msg_hist(char_u *s, int len, int attr); 23 static void hit_return_msg(void); 24 static void msg_home_replace_attr(char_u *fname, int attr); 25 #ifdef FEAT_MBYTE 26 static char_u *screen_puts_mbyte(char_u *s, int l, int attr); 27 #endif 28 static void msg_puts_attr_len(char_u *str, int maxlen, int attr); 29 static void msg_puts_display(char_u *str, int maxlen, int attr, int recurse); 30 static void msg_scroll_up(void); 31 static void inc_msg_scrolled(void); 32 static void store_sb_text(char_u **sb_str, char_u *s, int attr, int *sb_col, int finish); 33 static void t_puts(int *t_col, char_u *t_s, char_u *s, int attr); 34 static void msg_puts_printf(char_u *str, int maxlen); 35 static int do_more_prompt(int typed_char); 36 static void msg_screen_putchar(int c, int attr); 37 static int msg_check_screen(void); 38 static void redir_write(char_u *s, int maxlen); 39 #ifdef FEAT_CON_DIALOG 40 static char_u *msg_show_console_dialog(char_u *message, char_u *buttons, int dfltbutton); 41 static int confirm_msg_used = FALSE; /* displaying confirm_msg */ 42 static char_u *confirm_msg = NULL; /* ":confirm" message */ 43 static char_u *confirm_msg_tail; /* tail of confirm_msg */ 44 #endif 45 #ifdef FEAT_JOB_CHANNEL 46 static int emsg_to_channel_log = FALSE; 47 #endif 48 49 struct msg_hist 50 { 51 struct msg_hist *next; 52 char_u *msg; 53 int attr; 54 }; 55 56 static struct msg_hist *first_msg_hist = NULL; 57 static struct msg_hist *last_msg_hist = NULL; 58 static int msg_hist_len = 0; 59 60 static FILE *verbose_fd = NULL; 61 static int verbose_did_open = FALSE; 62 63 /* 64 * When writing messages to the screen, there are many different situations. 65 * A number of variables is used to remember the current state: 66 * msg_didany TRUE when messages were written since the last time the 67 * user reacted to a prompt. 68 * Reset: After hitting a key for the hit-return prompt, 69 * hitting <CR> for the command line or input(). 70 * Set: When any message is written to the screen. 71 * msg_didout TRUE when something was written to the current line. 72 * Reset: When advancing to the next line, when the current 73 * text can be overwritten. 74 * Set: When any message is written to the screen. 75 * msg_nowait No extra delay for the last drawn message. 76 * Used in normal_cmd() before the mode message is drawn. 77 * emsg_on_display There was an error message recently. Indicates that there 78 * should be a delay before redrawing. 79 * msg_scroll The next message should not overwrite the current one. 80 * msg_scrolled How many lines the screen has been scrolled (because of 81 * messages). Used in update_screen() to scroll the screen 82 * back. Incremented each time the screen scrolls a line. 83 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 84 * writes something without scrolling should not make 85 * need_wait_return to be set. This is a hack to make ":ts" 86 * work without an extra prompt. 87 * lines_left Number of lines available for messages before the 88 * more-prompt is to be given. -1 when not set. 89 * need_wait_return TRUE when the hit-return prompt is needed. 90 * Reset: After giving the hit-return prompt, when the user 91 * has answered some other prompt. 92 * Set: When the ruler or typeahead display is overwritten, 93 * scrolling the screen for some message. 94 * keep_msg Message to be displayed after redrawing the screen, in 95 * main_loop(). 96 * This is an allocated string or NULL when not used. 97 */ 98 99 /* 100 * msg(s) - displays the string 's' on the status line 101 * When terminal not initialized (yet) mch_errmsg(..) is used. 102 * return TRUE if wait_return not called 103 */ 104 int 105 msg(char_u *s) 106 { 107 return msg_attr_keep(s, 0, FALSE); 108 } 109 110 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 111 || defined(FEAT_GUI_GTK) || defined(PROTO) 112 /* 113 * Like msg() but keep it silent when 'verbosefile' is set. 114 */ 115 int 116 verb_msg(char_u *s) 117 { 118 int n; 119 120 verbose_enter(); 121 n = msg_attr_keep(s, 0, FALSE); 122 verbose_leave(); 123 124 return n; 125 } 126 #endif 127 128 int 129 msg_attr(char_u *s, int attr) 130 { 131 return msg_attr_keep(s, attr, FALSE); 132 } 133 134 int 135 msg_attr_keep( 136 char_u *s, 137 int attr, 138 int keep) /* TRUE: set keep_msg if it doesn't scroll */ 139 { 140 static int entered = 0; 141 int retval; 142 char_u *buf = NULL; 143 144 /* Skip messages not matching ":filter pattern". 145 * Don't filter when there is an error. */ 146 if (!emsg_on_display && message_filtered(s)) 147 return TRUE; 148 149 #ifdef FEAT_EVAL 150 if (attr == 0) 151 set_vim_var_string(VV_STATUSMSG, s, -1); 152 #endif 153 154 /* 155 * It is possible that displaying a messages causes a problem (e.g., 156 * when redrawing the window), which causes another message, etc.. To 157 * break this loop, limit the recursiveness to 3 levels. 158 */ 159 if (entered >= 3) 160 return TRUE; 161 ++entered; 162 163 /* Add message to history (unless it's a repeated kept message or a 164 * truncated message) */ 165 if (s != keep_msg 166 || (*s != '<' 167 && last_msg_hist != NULL 168 && last_msg_hist->msg != NULL 169 && STRCMP(s, last_msg_hist->msg))) 170 add_msg_hist(s, -1, attr); 171 172 #ifdef FEAT_JOB_CHANNEL 173 if (emsg_to_channel_log) 174 /* Write message in the channel log. */ 175 ch_log(NULL, "ERROR: %s", (char *)s); 176 #endif 177 178 /* When displaying keep_msg, don't let msg_start() free it, caller must do 179 * that. */ 180 if (s == keep_msg) 181 keep_msg = NULL; 182 183 /* Truncate the message if needed. */ 184 msg_start(); 185 buf = msg_strtrunc(s, FALSE); 186 if (buf != NULL) 187 s = buf; 188 189 msg_outtrans_attr(s, attr); 190 msg_clr_eos(); 191 retval = msg_end(); 192 193 if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1) 194 * Columns + sc_col) 195 set_keep_msg(s, 0); 196 197 vim_free(buf); 198 --entered; 199 return retval; 200 } 201 202 /* 203 * Truncate a string such that it can be printed without causing a scroll. 204 * Returns an allocated string or NULL when no truncating is done. 205 */ 206 char_u * 207 msg_strtrunc( 208 char_u *s, 209 int force) /* always truncate */ 210 { 211 char_u *buf = NULL; 212 int len; 213 int room; 214 215 /* May truncate message to avoid a hit-return prompt */ 216 if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 217 && !exmode_active && msg_silent == 0) || force) 218 { 219 len = vim_strsize(s); 220 if (msg_scrolled != 0) 221 /* Use all the columns. */ 222 room = (int)(Rows - msg_row) * Columns - 1; 223 else 224 /* Use up to 'showcmd' column. */ 225 room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1; 226 if (len > room && room > 0) 227 { 228 #ifdef FEAT_MBYTE 229 if (enc_utf8) 230 /* may have up to 18 bytes per cell (6 per char, up to two 231 * composing chars) */ 232 len = (room + 2) * 18; 233 else if (enc_dbcs == DBCS_JPNU) 234 /* may have up to 2 bytes per cell for euc-jp */ 235 len = (room + 2) * 2; 236 else 237 #endif 238 len = room + 2; 239 buf = alloc(len); 240 if (buf != NULL) 241 trunc_string(s, buf, room, len); 242 } 243 } 244 return buf; 245 } 246 247 /* 248 * Truncate a string "s" to "buf" with cell width "room". 249 * "s" and "buf" may be equal. 250 */ 251 void 252 trunc_string( 253 char_u *s, 254 char_u *buf, 255 int room_in, 256 int buflen) 257 { 258 size_t room = room_in - 3; /* "..." takes 3 chars */ 259 size_t half; 260 size_t len = 0; 261 int e; 262 int i; 263 int n; 264 265 if (room_in < 3) 266 room = 0; 267 half = room / 2; 268 269 /* First part: Start of the string. */ 270 for (e = 0; len < half && e < buflen; ++e) 271 { 272 if (s[e] == NUL) 273 { 274 /* text fits without truncating! */ 275 buf[e] = NUL; 276 return; 277 } 278 n = ptr2cells(s + e); 279 if (len + n > half) 280 break; 281 len += n; 282 buf[e] = s[e]; 283 #ifdef FEAT_MBYTE 284 if (has_mbyte) 285 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 286 { 287 if (++e == buflen) 288 break; 289 buf[e] = s[e]; 290 } 291 #endif 292 } 293 294 /* Last part: End of the string. */ 295 i = e; 296 #ifdef FEAT_MBYTE 297 if (enc_dbcs != 0) 298 { 299 /* For DBCS going backwards in a string is slow, but 300 * computing the cell width isn't too slow: go forward 301 * until the rest fits. */ 302 n = vim_strsize(s + i); 303 while (len + n > room) 304 { 305 n -= ptr2cells(s + i); 306 i += (*mb_ptr2len)(s + i); 307 } 308 } 309 else if (enc_utf8) 310 { 311 /* For UTF-8 we can go backwards easily. */ 312 half = i = (int)STRLEN(s); 313 for (;;) 314 { 315 do 316 half = half - utf_head_off(s, s + half - 1) - 1; 317 while (half > 0 && utf_iscomposing(utf_ptr2char(s + half))); 318 n = ptr2cells(s + half); 319 if (len + n > room || half == 0) 320 break; 321 len += n; 322 i = (int)half; 323 } 324 } 325 else 326 #endif 327 { 328 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 329 len += n; 330 } 331 332 333 if (i <= e + 3) 334 { 335 /* text fits without truncating */ 336 if (s != buf) 337 { 338 len = STRLEN(s); 339 if (len >= (size_t)buflen) 340 len = buflen - 1; 341 len = len - e + 1; 342 if (len < 1) 343 buf[e - 1] = NUL; 344 else 345 mch_memmove(buf + e, s + e, len); 346 } 347 } 348 else if (e + 3 < buflen) 349 { 350 /* set the middle and copy the last part */ 351 mch_memmove(buf + e, "...", (size_t)3); 352 len = STRLEN(s + i) + 1; 353 if (len >= (size_t)buflen - e - 3) 354 len = buflen - e - 3 - 1; 355 mch_memmove(buf + e + 3, s + i, len); 356 buf[e + 3 + len - 1] = NUL; 357 } 358 else 359 { 360 /* can't fit in the "...", just truncate it */ 361 buf[e - 1] = NUL; 362 } 363 } 364 365 /* 366 * Automatic prototype generation does not understand this function. 367 * Note: Caller of smgs() and smsg_attr() must check the resulting string is 368 * shorter than IOSIZE!!! 369 */ 370 #ifndef PROTO 371 372 int vim_snprintf(char *str, size_t str_m, char *fmt, ...); 373 374 int 375 # ifdef __BORLANDC__ 376 _RTLENTRYF 377 # endif 378 smsg(char_u *s, ...) 379 { 380 va_list arglist; 381 382 va_start(arglist, s); 383 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist); 384 va_end(arglist); 385 return msg(IObuff); 386 } 387 388 int 389 # ifdef __BORLANDC__ 390 _RTLENTRYF 391 # endif 392 smsg_attr(int attr, char_u *s, ...) 393 { 394 va_list arglist; 395 396 va_start(arglist, s); 397 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist); 398 va_end(arglist); 399 return msg_attr(IObuff, attr); 400 } 401 402 int 403 # ifdef __BORLANDC__ 404 _RTLENTRYF 405 # endif 406 smsg_attr_keep(int attr, char_u *s, ...) 407 { 408 va_list arglist; 409 410 va_start(arglist, s); 411 vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist); 412 va_end(arglist); 413 return msg_attr_keep(IObuff, attr, TRUE); 414 } 415 416 #endif 417 418 /* 419 * Remember the last sourcing name/lnum used in an error message, so that it 420 * isn't printed each time when it didn't change. 421 */ 422 static int last_sourcing_lnum = 0; 423 static char_u *last_sourcing_name = NULL; 424 425 /* 426 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 427 * for the next error message; 428 */ 429 void 430 reset_last_sourcing(void) 431 { 432 VIM_CLEAR(last_sourcing_name); 433 last_sourcing_lnum = 0; 434 } 435 436 /* 437 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 438 */ 439 static int 440 other_sourcing_name(void) 441 { 442 if (sourcing_name != NULL) 443 { 444 if (last_sourcing_name != NULL) 445 return STRCMP(sourcing_name, last_sourcing_name) != 0; 446 return TRUE; 447 } 448 return FALSE; 449 } 450 451 /* 452 * Get the message about the source, as used for an error message. 453 * Returns an allocated string with room for one more character. 454 * Returns NULL when no message is to be given. 455 */ 456 static char_u * 457 get_emsg_source(void) 458 { 459 char_u *Buf, *p; 460 461 if (sourcing_name != NULL && other_sourcing_name()) 462 { 463 p = (char_u *)_("Error detected while processing %s:"); 464 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 465 if (Buf != NULL) 466 sprintf((char *)Buf, (char *)p, sourcing_name); 467 return Buf; 468 } 469 return NULL; 470 } 471 472 /* 473 * Get the message about the source lnum, as used for an error message. 474 * Returns an allocated string with room for one more character. 475 * Returns NULL when no message is to be given. 476 */ 477 static char_u * 478 get_emsg_lnum(void) 479 { 480 char_u *Buf, *p; 481 482 /* lnum is 0 when executing a command from the command line 483 * argument, we don't want a line number then */ 484 if (sourcing_name != NULL 485 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 486 && sourcing_lnum != 0) 487 { 488 p = (char_u *)_("line %4ld:"); 489 Buf = alloc((unsigned)(STRLEN(p) + 20)); 490 if (Buf != NULL) 491 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 492 return Buf; 493 } 494 return NULL; 495 } 496 497 /* 498 * Display name and line number for the source of an error. 499 * Remember the file name and line number, so that for the next error the info 500 * is only displayed if it changed. 501 */ 502 void 503 msg_source(int attr) 504 { 505 char_u *p; 506 507 ++no_wait_return; 508 p = get_emsg_source(); 509 if (p != NULL) 510 { 511 msg_attr(p, attr); 512 vim_free(p); 513 } 514 p = get_emsg_lnum(); 515 if (p != NULL) 516 { 517 msg_attr(p, HL_ATTR(HLF_N)); 518 vim_free(p); 519 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 520 } 521 522 /* remember the last sourcing name printed, also when it's empty */ 523 if (sourcing_name == NULL || other_sourcing_name()) 524 { 525 vim_free(last_sourcing_name); 526 if (sourcing_name == NULL) 527 last_sourcing_name = NULL; 528 else 529 last_sourcing_name = vim_strsave(sourcing_name); 530 } 531 --no_wait_return; 532 } 533 534 /* 535 * Return TRUE if not giving error messages right now: 536 * If "emsg_off" is set: no error messages at the moment. 537 * If "msg" is in 'debug': do error message but without side effects. 538 * If "emsg_skip" is set: never do error messages. 539 */ 540 int 541 emsg_not_now(void) 542 { 543 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL 544 && vim_strchr(p_debug, 't') == NULL) 545 #ifdef FEAT_EVAL 546 || emsg_skip > 0 547 #endif 548 ) 549 return TRUE; 550 return FALSE; 551 } 552 553 #if defined(FEAT_EVAL) || defined(PROTO) 554 static garray_T ignore_error_list = GA_EMPTY; 555 556 void 557 ignore_error_for_testing(char_u *error) 558 { 559 if (ignore_error_list.ga_itemsize == 0) 560 ga_init2(&ignore_error_list, sizeof(char_u *), 1); 561 562 ga_add_string(&ignore_error_list, error); 563 } 564 565 static int 566 ignore_error(char_u *msg) 567 { 568 int i; 569 570 for (i = 0; i < ignore_error_list.ga_len; ++i) 571 if (strstr((char *)msg, 572 (char *)((char_u **)(ignore_error_list.ga_data))[i]) != NULL) 573 return TRUE; 574 return FALSE; 575 } 576 #endif 577 578 #if !defined(HAVE_STRERROR) || defined(PROTO) 579 /* 580 * Replacement for perror() that behaves more or less like emsg() was called. 581 * v:errmsg will be set and called_emsg will be set. 582 */ 583 void 584 do_perror(char *msg) 585 { 586 perror(msg); 587 ++emsg_silent; 588 emsg((char_u *)msg); 589 --emsg_silent; 590 } 591 #endif 592 593 /* 594 * emsg() - display an error message 595 * 596 * Rings the bell, if appropriate, and calls message() to do the real work 597 * When terminal not initialized (yet) mch_errmsg(..) is used. 598 * 599 * return TRUE if wait_return not called 600 */ 601 int 602 emsg(char_u *s) 603 { 604 int attr; 605 char_u *p; 606 int r; 607 #ifdef FEAT_EVAL 608 int ignore = FALSE; 609 int severe; 610 #endif 611 612 /* Skip this if not giving error messages at the moment. */ 613 if (emsg_not_now()) 614 return TRUE; 615 616 #ifdef FEAT_EVAL 617 /* When testing some errors are turned into a normal message. */ 618 if (ignore_error(s)) 619 /* don't call msg() if it results in a dialog */ 620 return msg_use_printf() ? FALSE : msg(s); 621 #endif 622 623 called_emsg = TRUE; 624 625 #ifdef FEAT_EVAL 626 /* If "emsg_severe" is TRUE: When an error exception is to be thrown, 627 * prefer this message over previous messages for the same command. */ 628 severe = emsg_severe; 629 emsg_severe = FALSE; 630 #endif 631 632 if (!emsg_off || vim_strchr(p_debug, 't') != NULL) 633 { 634 #ifdef FEAT_EVAL 635 /* 636 * Cause a throw of an error exception if appropriate. Don't display 637 * the error message in this case. (If no matching catch clause will 638 * be found, the message will be displayed later on.) "ignore" is set 639 * when the message should be ignored completely (used for the 640 * interrupt message). 641 */ 642 if (cause_errthrow(s, severe, &ignore) == TRUE) 643 { 644 if (!ignore) 645 did_emsg = TRUE; 646 return TRUE; 647 } 648 649 /* set "v:errmsg", also when using ":silent! cmd" */ 650 set_vim_var_string(VV_ERRMSG, s, -1); 651 #endif 652 653 /* 654 * When using ":silent! cmd" ignore error messages. 655 * But do write it to the redirection file. 656 */ 657 if (emsg_silent != 0) 658 { 659 if (emsg_noredir == 0) 660 { 661 msg_start(); 662 p = get_emsg_source(); 663 if (p != NULL) 664 { 665 STRCAT(p, "\n"); 666 redir_write(p, -1); 667 vim_free(p); 668 } 669 p = get_emsg_lnum(); 670 if (p != NULL) 671 { 672 STRCAT(p, "\n"); 673 redir_write(p, -1); 674 vim_free(p); 675 } 676 redir_write(s, -1); 677 } 678 #ifdef FEAT_JOB_CHANNEL 679 ch_log(NULL, "ERROR: %s", (char *)s); 680 #endif 681 return TRUE; 682 } 683 684 ex_exitval = 1; 685 686 /* Reset msg_silent, an error causes messages to be switched back on. 687 */ 688 msg_silent = 0; 689 cmd_silent = FALSE; 690 691 if (global_busy) /* break :global command */ 692 ++global_busy; 693 694 if (p_eb) 695 beep_flush(); /* also includes flush_buffers() */ 696 else 697 flush_buffers(FALSE); /* flush internal buffers */ 698 did_emsg = TRUE; /* flag for DoOneCmd() */ 699 #ifdef FEAT_EVAL 700 did_uncaught_emsg = TRUE; 701 #endif 702 } 703 704 emsg_on_display = TRUE; /* remember there is an error message */ 705 ++msg_scroll; /* don't overwrite a previous message */ 706 attr = HL_ATTR(HLF_E); /* set highlight mode for error messages */ 707 if (msg_scrolled != 0) 708 need_wait_return = TRUE; /* needed in case emsg() is called after 709 * wait_return has reset need_wait_return 710 * and a redraw is expected because 711 * msg_scrolled is non-zero */ 712 713 #ifdef FEAT_JOB_CHANNEL 714 emsg_to_channel_log = TRUE; 715 #endif 716 /* 717 * Display name and line number for the source of the error. 718 */ 719 msg_source(attr); 720 721 /* 722 * Display the error message itself. 723 */ 724 msg_nowait = FALSE; /* wait for this msg */ 725 r = msg_attr(s, attr); 726 727 #ifdef FEAT_JOB_CHANNEL 728 emsg_to_channel_log = FALSE; 729 #endif 730 return r; 731 } 732 733 734 /* 735 * Print an error message with one "%s" and one string argument. 736 */ 737 int 738 emsg2(char_u *s, char_u *a1) 739 { 740 return emsg3(s, a1, NULL); 741 } 742 743 /* 744 * Print an error message with one or two "%s" and one or two string arguments. 745 * This is not in message.c to avoid a warning for prototypes. 746 */ 747 int 748 emsg3(char_u *s, char_u *a1, char_u *a2) 749 { 750 if (emsg_not_now()) 751 return TRUE; /* no error messages at the moment */ 752 vim_snprintf((char *)IObuff, IOSIZE, (char *)s, a1, a2); 753 return emsg(IObuff); 754 } 755 756 /* 757 * Print an error message with one "%ld" and one long int argument. 758 * This is not in message.c to avoid a warning for prototypes. 759 */ 760 int 761 emsgn(char_u *s, long n) 762 { 763 if (emsg_not_now()) 764 return TRUE; /* no error messages at the moment */ 765 vim_snprintf((char *)IObuff, IOSIZE, (char *)s, n); 766 return emsg(IObuff); 767 } 768 769 /* 770 * Same as emsg(...), but abort on error when ABORT_ON_INTERNAL_ERROR is 771 * defined. It is used for internal errors only, so that they can be 772 * detected when fuzzing vim. 773 */ 774 void 775 iemsg(char_u *s) 776 { 777 emsg(s); 778 #ifdef ABORT_ON_INTERNAL_ERROR 779 abort(); 780 #endif 781 } 782 783 784 /* 785 * Same as emsg2(...) but abort on error when ABORT_ON_INTERNAL_ERROR is 786 * defined. It is used for internal errors only, so that they can be 787 * detected when fuzzing vim. 788 */ 789 void 790 iemsg2(char_u *s, char_u *a1) 791 { 792 emsg2(s, a1); 793 #ifdef ABORT_ON_INTERNAL_ERROR 794 abort(); 795 #endif 796 } 797 798 /* 799 * Same as emsgn(...) but abort on error when ABORT_ON_INTERNAL_ERROR is 800 * defined. It is used for internal errors only, so that they can be 801 * detected when fuzzing vim. 802 */ 803 void 804 iemsgn(char_u *s, long n) 805 { 806 emsgn(s, n); 807 #ifdef ABORT_ON_INTERNAL_ERROR 808 abort(); 809 #endif 810 } 811 812 /* 813 * Give an "Internal error" message. 814 */ 815 void 816 internal_error(char *where) 817 { 818 IEMSG2(_(e_intern2), where); 819 } 820 821 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 822 823 void 824 emsg_invreg(int name) 825 { 826 EMSG2(_("E354: Invalid register name: '%s'"), transchar(name)); 827 } 828 829 /* 830 * Like msg(), but truncate to a single line if p_shm contains 't', or when 831 * "force" is TRUE. This truncates in another way as for normal messages. 832 * Careful: The string may be changed by msg_may_trunc()! 833 * Returns a pointer to the printed message, if wait_return() not called. 834 */ 835 char_u * 836 msg_trunc_attr(char_u *s, int force, int attr) 837 { 838 int n; 839 840 /* Add message to history before truncating */ 841 add_msg_hist(s, -1, attr); 842 843 s = msg_may_trunc(force, s); 844 845 msg_hist_off = TRUE; 846 n = msg_attr(s, attr); 847 msg_hist_off = FALSE; 848 849 if (n) 850 return s; 851 return NULL; 852 } 853 854 /* 855 * Check if message "s" should be truncated at the start (for filenames). 856 * Return a pointer to where the truncated message starts. 857 * Note: May change the message by replacing a character with '<'. 858 */ 859 char_u * 860 msg_may_trunc(int force, char_u *s) 861 { 862 int n; 863 int room; 864 865 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 866 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 867 && (n = (int)STRLEN(s) - room) > 0) 868 { 869 #ifdef FEAT_MBYTE 870 if (has_mbyte) 871 { 872 int size = vim_strsize(s); 873 874 /* There may be room anyway when there are multibyte chars. */ 875 if (size <= room) 876 return s; 877 878 for (n = 0; size >= room; ) 879 { 880 size -= (*mb_ptr2cells)(s + n); 881 n += (*mb_ptr2len)(s + n); 882 } 883 --n; 884 } 885 #endif 886 s += n; 887 *s = '<'; 888 } 889 return s; 890 } 891 892 static void 893 add_msg_hist( 894 char_u *s, 895 int len, /* -1 for undetermined length */ 896 int attr) 897 { 898 struct msg_hist *p; 899 900 if (msg_hist_off || msg_silent != 0) 901 return; 902 903 /* Don't let the message history get too big */ 904 while (msg_hist_len > MAX_MSG_HIST_LEN) 905 (void)delete_first_msg(); 906 907 /* allocate an entry and add the message at the end of the history */ 908 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 909 if (p != NULL) 910 { 911 if (len < 0) 912 len = (int)STRLEN(s); 913 /* remove leading and trailing newlines */ 914 while (len > 0 && *s == '\n') 915 { 916 ++s; 917 --len; 918 } 919 while (len > 0 && s[len - 1] == '\n') 920 --len; 921 p->msg = vim_strnsave(s, len); 922 p->next = NULL; 923 p->attr = attr; 924 if (last_msg_hist != NULL) 925 last_msg_hist->next = p; 926 last_msg_hist = p; 927 if (first_msg_hist == NULL) 928 first_msg_hist = last_msg_hist; 929 ++msg_hist_len; 930 } 931 } 932 933 /* 934 * Delete the first (oldest) message from the history. 935 * Returns FAIL if there are no messages. 936 */ 937 int 938 delete_first_msg(void) 939 { 940 struct msg_hist *p; 941 942 if (msg_hist_len <= 0) 943 return FAIL; 944 p = first_msg_hist; 945 first_msg_hist = p->next; 946 if (first_msg_hist == NULL) 947 last_msg_hist = NULL; /* history is empty */ 948 vim_free(p->msg); 949 vim_free(p); 950 --msg_hist_len; 951 return OK; 952 } 953 954 /* 955 * ":messages" command. 956 */ 957 void 958 ex_messages(exarg_T *eap) 959 { 960 struct msg_hist *p; 961 char_u *s; 962 int c = 0; 963 964 if (STRCMP(eap->arg, "clear") == 0) 965 { 966 int keep = eap->addr_count == 0 ? 0 : eap->line2; 967 968 while (msg_hist_len > keep) 969 (void)delete_first_msg(); 970 return; 971 } 972 973 if (*eap->arg != NUL) 974 { 975 EMSG(_(e_invarg)); 976 return; 977 } 978 979 msg_hist_off = TRUE; 980 981 p = first_msg_hist; 982 if (eap->addr_count != 0) 983 { 984 /* Count total messages */ 985 for (; p != NULL && !got_int; p = p->next) 986 c++; 987 988 c -= eap->line2; 989 990 /* Skip without number of messages specified */ 991 for (p = first_msg_hist; p != NULL && !got_int && c > 0; 992 p = p->next, c--); 993 } 994 995 if (p == first_msg_hist) 996 { 997 s = mch_getenv((char_u *)"LANG"); 998 if (s != NULL && *s != NUL) 999 // The next comment is extracted by xgettext and put in po file for 1000 // translators to read. 1001 msg_attr((char_u *) 1002 // Translator: Please replace the name and email address 1003 // with the appropriate text for your translation. 1004 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 1005 HL_ATTR(HLF_T)); 1006 } 1007 1008 /* Display what was not skipped. */ 1009 for (; p != NULL && !got_int; p = p->next) 1010 if (p->msg != NULL) 1011 msg_attr(p->msg, p->attr); 1012 1013 msg_hist_off = FALSE; 1014 } 1015 1016 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 1017 /* 1018 * Call this after prompting the user. This will avoid a hit-return message 1019 * and a delay. 1020 */ 1021 void 1022 msg_end_prompt(void) 1023 { 1024 need_wait_return = FALSE; 1025 emsg_on_display = FALSE; 1026 cmdline_row = msg_row; 1027 msg_col = 0; 1028 msg_clr_eos(); 1029 lines_left = -1; 1030 } 1031 #endif 1032 1033 /* 1034 * wait for the user to hit a key (normally a return) 1035 * if 'redraw' is TRUE, clear and redraw the screen 1036 * if 'redraw' is FALSE, just redraw the screen 1037 * if 'redraw' is -1, don't redraw at all 1038 */ 1039 void 1040 wait_return(int redraw) 1041 { 1042 int c; 1043 int oldState; 1044 int tmpState; 1045 int had_got_int; 1046 int save_reg_recording; 1047 FILE *save_scriptout; 1048 1049 if (redraw == TRUE) 1050 must_redraw = CLEAR; 1051 1052 /* If using ":silent cmd", don't wait for a return. Also don't set 1053 * need_wait_return to do it later. */ 1054 if (msg_silent != 0) 1055 return; 1056 1057 /* 1058 * When inside vgetc(), we can't wait for a typed character at all. 1059 * With the global command (and some others) we only need one return at 1060 * the end. Adjust cmdline_row to avoid the next message overwriting the 1061 * last one. 1062 */ 1063 if (vgetc_busy > 0) 1064 return; 1065 need_wait_return = TRUE; 1066 if (no_wait_return) 1067 { 1068 if (!exmode_active) 1069 cmdline_row = msg_row; 1070 return; 1071 } 1072 1073 redir_off = TRUE; /* don't redirect this message */ 1074 oldState = State; 1075 if (quit_more) 1076 { 1077 c = CAR; /* just pretend CR was hit */ 1078 quit_more = FALSE; 1079 got_int = FALSE; 1080 } 1081 else if (exmode_active) 1082 { 1083 MSG_PUTS(" "); /* make sure the cursor is on the right line */ 1084 c = CAR; /* no need for a return in ex mode */ 1085 got_int = FALSE; 1086 } 1087 else 1088 { 1089 /* Make sure the hit-return prompt is on screen when 'guioptions' was 1090 * just changed. */ 1091 screenalloc(FALSE); 1092 1093 State = HITRETURN; 1094 #ifdef FEAT_MOUSE 1095 setmouse(); 1096 #endif 1097 #ifdef USE_ON_FLY_SCROLL 1098 dont_scroll = TRUE; /* disallow scrolling here */ 1099 #endif 1100 cmdline_row = msg_row; 1101 1102 /* Avoid the sequence that the user types ":" at the hit-return prompt 1103 * to start an Ex command, but the file-changed dialog gets in the 1104 * way. */ 1105 if (need_check_timestamps) 1106 check_timestamps(FALSE); 1107 1108 hit_return_msg(); 1109 1110 do 1111 { 1112 /* Remember "got_int", if it is set vgetc() probably returns a 1113 * CTRL-C, but we need to loop then. */ 1114 had_got_int = got_int; 1115 1116 /* Don't do mappings here, we put the character back in the 1117 * typeahead buffer. */ 1118 ++no_mapping; 1119 ++allow_keys; 1120 1121 /* Temporarily disable Recording. If Recording is active, the 1122 * character will be recorded later, since it will be added to the 1123 * typebuf after the loop */ 1124 save_reg_recording = reg_recording; 1125 save_scriptout = scriptout; 1126 reg_recording = 0; 1127 scriptout = NULL; 1128 c = safe_vgetc(); 1129 if (had_got_int && !global_busy) 1130 got_int = FALSE; 1131 --no_mapping; 1132 --allow_keys; 1133 reg_recording = save_reg_recording; 1134 scriptout = save_scriptout; 1135 1136 #ifdef FEAT_CLIPBOARD 1137 /* Strange way to allow copying (yanking) a modeless selection at 1138 * the hit-enter prompt. Use CTRL-Y, because the same is used in 1139 * Cmdline-mode and it's harmless when there is no selection. */ 1140 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 1141 { 1142 clip_copy_modeless_selection(TRUE); 1143 c = K_IGNORE; 1144 } 1145 #endif 1146 1147 /* 1148 * Allow scrolling back in the messages. 1149 * Also accept scroll-down commands when messages fill the screen, 1150 * to avoid that typing one 'j' too many makes the messages 1151 * disappear. 1152 */ 1153 if (p_more && !p_cp) 1154 { 1155 if (c == 'b' || c == 'k' || c == 'u' || c == 'g' 1156 || c == K_UP || c == K_PAGEUP) 1157 { 1158 if (msg_scrolled > Rows) 1159 /* scroll back to show older messages */ 1160 do_more_prompt(c); 1161 else 1162 { 1163 msg_didout = FALSE; 1164 c = K_IGNORE; 1165 msg_col = 1166 #ifdef FEAT_RIGHTLEFT 1167 cmdmsg_rl ? Columns - 1 : 1168 #endif 1169 0; 1170 } 1171 if (quit_more) 1172 { 1173 c = CAR; /* just pretend CR was hit */ 1174 quit_more = FALSE; 1175 got_int = FALSE; 1176 } 1177 else if (c != K_IGNORE) 1178 { 1179 c = K_IGNORE; 1180 hit_return_msg(); 1181 } 1182 } 1183 else if (msg_scrolled > Rows - 2 1184 && (c == 'j' || c == 'd' || c == 'f' 1185 || c == K_DOWN || c == K_PAGEDOWN)) 1186 c = K_IGNORE; 1187 } 1188 } while ((had_got_int && c == Ctrl_C) 1189 || c == K_IGNORE 1190 #ifdef FEAT_GUI 1191 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 1192 #endif 1193 #ifdef FEAT_MOUSE 1194 || c == K_LEFTDRAG || c == K_LEFTRELEASE 1195 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 1196 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 1197 || c == K_MOUSELEFT || c == K_MOUSERIGHT 1198 || c == K_MOUSEDOWN || c == K_MOUSEUP 1199 || c == K_MOUSEMOVE 1200 || (!mouse_has(MOUSE_RETURN) 1201 && mouse_row < msg_row 1202 && (c == K_LEFTMOUSE 1203 || c == K_MIDDLEMOUSE 1204 || c == K_RIGHTMOUSE 1205 || c == K_X1MOUSE 1206 || c == K_X2MOUSE)) 1207 #endif 1208 ); 1209 ui_breakcheck(); 1210 #ifdef FEAT_MOUSE 1211 /* 1212 * Avoid that the mouse-up event causes visual mode to start. 1213 */ 1214 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 1215 || c == K_X1MOUSE || c == K_X2MOUSE) 1216 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 1217 else 1218 #endif 1219 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 1220 { 1221 /* Put the character back in the typeahead buffer. Don't use the 1222 * stuff buffer, because lmaps wouldn't work. */ 1223 ins_char_typebuf(c); 1224 do_redraw = TRUE; /* need a redraw even though there is 1225 typeahead */ 1226 } 1227 } 1228 redir_off = FALSE; 1229 1230 /* 1231 * If the user hits ':', '?' or '/' we get a command line from the next 1232 * line. 1233 */ 1234 if (c == ':' || c == '?' || c == '/') 1235 { 1236 if (!exmode_active) 1237 cmdline_row = msg_row; 1238 skip_redraw = TRUE; /* skip redraw once */ 1239 do_redraw = FALSE; 1240 #ifdef FEAT_TERMINAL 1241 skip_term_loop = TRUE; 1242 #endif 1243 } 1244 1245 /* 1246 * If the window size changed set_shellsize() will redraw the screen. 1247 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1248 * typed. 1249 */ 1250 tmpState = State; 1251 State = oldState; /* restore State before set_shellsize */ 1252 #ifdef FEAT_MOUSE 1253 setmouse(); 1254 #endif 1255 msg_check(); 1256 1257 #if defined(UNIX) || defined(VMS) 1258 /* 1259 * When switching screens, we need to output an extra newline on exit. 1260 */ 1261 if (swapping_screen() && !termcap_active) 1262 newline_on_exit = TRUE; 1263 #endif 1264 1265 need_wait_return = FALSE; 1266 did_wait_return = TRUE; 1267 emsg_on_display = FALSE; /* can delete error message now */ 1268 lines_left = -1; /* reset lines_left at next msg_start() */ 1269 reset_last_sourcing(); 1270 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1271 (Rows - cmdline_row - 1) * Columns + sc_col) 1272 VIM_CLEAR(keep_msg); /* don't redisplay message, it's too long */ 1273 1274 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1275 { 1276 starttermcap(); /* start termcap before redrawing */ 1277 shell_resized(); 1278 } 1279 else if (!skip_redraw 1280 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1281 { 1282 starttermcap(); /* start termcap before redrawing */ 1283 redraw_later(VALID); 1284 } 1285 } 1286 1287 /* 1288 * Write the hit-return prompt. 1289 */ 1290 static void 1291 hit_return_msg(void) 1292 { 1293 int save_p_more = p_more; 1294 1295 p_more = FALSE; /* don't want see this message when scrolling back */ 1296 if (msg_didout) /* start on a new line */ 1297 msg_putchar('\n'); 1298 if (got_int) 1299 MSG_PUTS(_("Interrupt: ")); 1300 1301 MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), HL_ATTR(HLF_R)); 1302 if (!msg_use_printf()) 1303 msg_clr_eos(); 1304 p_more = save_p_more; 1305 } 1306 1307 /* 1308 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1309 */ 1310 void 1311 set_keep_msg(char_u *s, int attr) 1312 { 1313 vim_free(keep_msg); 1314 if (s != NULL && msg_silent == 0) 1315 keep_msg = vim_strsave(s); 1316 else 1317 keep_msg = NULL; 1318 keep_msg_more = FALSE; 1319 keep_msg_attr = attr; 1320 } 1321 1322 #if defined(FEAT_TERMRESPONSE) || defined(PROTO) 1323 /* 1324 * If there currently is a message being displayed, set "keep_msg" to it, so 1325 * that it will be displayed again after redraw. 1326 */ 1327 void 1328 set_keep_msg_from_hist(void) 1329 { 1330 if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0 1331 && (State & NORMAL)) 1332 set_keep_msg(last_msg_hist->msg, last_msg_hist->attr); 1333 } 1334 #endif 1335 1336 /* 1337 * Prepare for outputting characters in the command line. 1338 */ 1339 void 1340 msg_start(void) 1341 { 1342 int did_return = FALSE; 1343 1344 if (!msg_silent) 1345 VIM_CLEAR(keep_msg); 1346 1347 #ifdef FEAT_EVAL 1348 if (need_clr_eos) 1349 { 1350 /* Halfway an ":echo" command and getting an (error) message: clear 1351 * any text from the command. */ 1352 need_clr_eos = FALSE; 1353 msg_clr_eos(); 1354 } 1355 #endif 1356 1357 if (!msg_scroll && full_screen) /* overwrite last message */ 1358 { 1359 msg_row = cmdline_row; 1360 msg_col = 1361 #ifdef FEAT_RIGHTLEFT 1362 cmdmsg_rl ? Columns - 1 : 1363 #endif 1364 0; 1365 } 1366 else if (msg_didout) /* start message on next line */ 1367 { 1368 msg_putchar('\n'); 1369 did_return = TRUE; 1370 if (exmode_active != EXMODE_NORMAL) 1371 cmdline_row = msg_row; 1372 } 1373 if (!msg_didany || lines_left < 0) 1374 msg_starthere(); 1375 if (msg_silent == 0) 1376 { 1377 msg_didout = FALSE; /* no output on current line yet */ 1378 cursor_off(); 1379 } 1380 1381 /* when redirecting, may need to start a new line. */ 1382 if (!did_return) 1383 redir_write((char_u *)"\n", -1); 1384 } 1385 1386 /* 1387 * Note that the current msg position is where messages start. 1388 */ 1389 void 1390 msg_starthere(void) 1391 { 1392 lines_left = cmdline_row; 1393 msg_didany = FALSE; 1394 } 1395 1396 void 1397 msg_putchar(int c) 1398 { 1399 msg_putchar_attr(c, 0); 1400 } 1401 1402 void 1403 msg_putchar_attr(int c, int attr) 1404 { 1405 #ifdef FEAT_MBYTE 1406 char_u buf[MB_MAXBYTES + 1]; 1407 #else 1408 char_u buf[4]; 1409 #endif 1410 1411 if (IS_SPECIAL(c)) 1412 { 1413 buf[0] = K_SPECIAL; 1414 buf[1] = K_SECOND(c); 1415 buf[2] = K_THIRD(c); 1416 buf[3] = NUL; 1417 } 1418 else 1419 { 1420 #ifdef FEAT_MBYTE 1421 buf[(*mb_char2bytes)(c, buf)] = NUL; 1422 #else 1423 buf[0] = c; 1424 buf[1] = NUL; 1425 #endif 1426 } 1427 msg_puts_attr(buf, attr); 1428 } 1429 1430 void 1431 msg_outnum(long n) 1432 { 1433 char_u buf[20]; 1434 1435 sprintf((char *)buf, "%ld", n); 1436 msg_puts(buf); 1437 } 1438 1439 void 1440 msg_home_replace(char_u *fname) 1441 { 1442 msg_home_replace_attr(fname, 0); 1443 } 1444 1445 #if defined(FEAT_FIND_ID) || defined(PROTO) 1446 void 1447 msg_home_replace_hl(char_u *fname) 1448 { 1449 msg_home_replace_attr(fname, HL_ATTR(HLF_D)); 1450 } 1451 #endif 1452 1453 static void 1454 msg_home_replace_attr(char_u *fname, int attr) 1455 { 1456 char_u *name; 1457 1458 name = home_replace_save(NULL, fname); 1459 if (name != NULL) 1460 msg_outtrans_attr(name, attr); 1461 vim_free(name); 1462 } 1463 1464 /* 1465 * Output 'len' characters in 'str' (including NULs) with translation 1466 * if 'len' is -1, output upto a NUL character. 1467 * Use attributes 'attr'. 1468 * Return the number of characters it takes on the screen. 1469 */ 1470 int 1471 msg_outtrans(char_u *str) 1472 { 1473 return msg_outtrans_attr(str, 0); 1474 } 1475 1476 int 1477 msg_outtrans_attr(char_u *str, int attr) 1478 { 1479 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1480 } 1481 1482 int 1483 msg_outtrans_len(char_u *str, int len) 1484 { 1485 return msg_outtrans_len_attr(str, len, 0); 1486 } 1487 1488 /* 1489 * Output one character at "p". Return pointer to the next character. 1490 * Handles multi-byte characters. 1491 */ 1492 char_u * 1493 msg_outtrans_one(char_u *p, int attr) 1494 { 1495 #ifdef FEAT_MBYTE 1496 int l; 1497 1498 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1499 { 1500 msg_outtrans_len_attr(p, l, attr); 1501 return p + l; 1502 } 1503 #endif 1504 msg_puts_attr(transchar_byte(*p), attr); 1505 return p + 1; 1506 } 1507 1508 int 1509 msg_outtrans_len_attr(char_u *msgstr, int len, int attr) 1510 { 1511 int retval = 0; 1512 char_u *str = msgstr; 1513 char_u *plain_start = msgstr; 1514 char_u *s; 1515 #ifdef FEAT_MBYTE 1516 int mb_l; 1517 int c; 1518 #endif 1519 1520 /* if MSG_HIST flag set, add message to history */ 1521 if (attr & MSG_HIST) 1522 { 1523 add_msg_hist(str, len, attr); 1524 attr &= ~MSG_HIST; 1525 } 1526 1527 #ifdef FEAT_MBYTE 1528 /* If the string starts with a composing character first draw a space on 1529 * which the composing char can be drawn. */ 1530 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1531 msg_puts_attr((char_u *)" ", attr); 1532 #endif 1533 1534 /* 1535 * Go over the string. Special characters are translated and printed. 1536 * Normal characters are printed several at a time. 1537 */ 1538 while (--len >= 0) 1539 { 1540 #ifdef FEAT_MBYTE 1541 if (enc_utf8) 1542 /* Don't include composing chars after the end. */ 1543 mb_l = utfc_ptr2len_len(str, len + 1); 1544 else if (has_mbyte) 1545 mb_l = (*mb_ptr2len)(str); 1546 else 1547 mb_l = 1; 1548 if (has_mbyte && mb_l > 1) 1549 { 1550 c = (*mb_ptr2char)(str); 1551 if (vim_isprintc(c)) 1552 /* printable multi-byte char: count the cells. */ 1553 retval += (*mb_ptr2cells)(str); 1554 else 1555 { 1556 /* unprintable multi-byte char: print the printable chars so 1557 * far and the translation of the unprintable char. */ 1558 if (str > plain_start) 1559 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1560 attr); 1561 plain_start = str + mb_l; 1562 msg_puts_attr(transchar(c), attr == 0 ? HL_ATTR(HLF_8) : attr); 1563 retval += char2cells(c); 1564 } 1565 len -= mb_l - 1; 1566 str += mb_l; 1567 } 1568 else 1569 #endif 1570 { 1571 s = transchar_byte(*str); 1572 if (s[1] != NUL) 1573 { 1574 /* unprintable char: print the printable chars so far and the 1575 * translation of the unprintable char. */ 1576 if (str > plain_start) 1577 msg_puts_attr_len(plain_start, (int)(str - plain_start), 1578 attr); 1579 plain_start = str + 1; 1580 msg_puts_attr(s, attr == 0 ? HL_ATTR(HLF_8) : attr); 1581 retval += (int)STRLEN(s); 1582 } 1583 else 1584 ++retval; 1585 ++str; 1586 } 1587 } 1588 1589 if (str > plain_start) 1590 /* print the printable chars at the end */ 1591 msg_puts_attr_len(plain_start, (int)(str - plain_start), attr); 1592 1593 return retval; 1594 } 1595 1596 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1597 void 1598 msg_make(char_u *arg) 1599 { 1600 int i; 1601 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1602 1603 arg = skipwhite(arg); 1604 for (i = 5; *arg && i >= 0; --i) 1605 if (*arg++ != str[i]) 1606 break; 1607 if (i < 0) 1608 { 1609 msg_putchar('\n'); 1610 for (i = 0; rs[i]; ++i) 1611 msg_putchar(rs[i] - 3); 1612 } 1613 } 1614 #endif 1615 1616 /* 1617 * Output the string 'str' upto a NUL character. 1618 * Return the number of characters it takes on the screen. 1619 * 1620 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1621 * following character and shown as <F1>, <S-Up> etc. Any other character 1622 * which is not printable shown in <> form. 1623 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1624 * If a character is displayed in one of these special ways, is also 1625 * highlighted (its highlight name is '8' in the p_hl variable). 1626 * Otherwise characters are not highlighted. 1627 * This function is used to show mappings, where we want to see how to type 1628 * the character/string -- webb 1629 */ 1630 int 1631 msg_outtrans_special( 1632 char_u *strstart, 1633 int from) /* TRUE for lhs of a mapping */ 1634 { 1635 char_u *str = strstart; 1636 int retval = 0; 1637 char_u *string; 1638 int attr; 1639 int len; 1640 1641 attr = HL_ATTR(HLF_8); 1642 while (*str != NUL) 1643 { 1644 /* Leading and trailing spaces need to be displayed in <> form. */ 1645 if ((str == strstart || str[1] == NUL) && *str == ' ') 1646 { 1647 string = (char_u *)"<Space>"; 1648 ++str; 1649 } 1650 else 1651 string = str2special(&str, from); 1652 len = vim_strsize(string); 1653 /* Highlight special keys */ 1654 msg_puts_attr(string, len > 1 1655 #ifdef FEAT_MBYTE 1656 && (*mb_ptr2len)(string) <= 1 1657 #endif 1658 ? attr : 0); 1659 retval += len; 1660 } 1661 return retval; 1662 } 1663 1664 #if defined(FEAT_EVAL) || defined(PROTO) 1665 /* 1666 * Return the lhs or rhs of a mapping, with the key codes turned into printable 1667 * strings, in an allocated string. 1668 */ 1669 char_u * 1670 str2special_save( 1671 char_u *str, 1672 int is_lhs) /* TRUE for lhs, FALSE for rhs */ 1673 { 1674 garray_T ga; 1675 char_u *p = str; 1676 1677 ga_init2(&ga, 1, 40); 1678 while (*p != NUL) 1679 ga_concat(&ga, str2special(&p, is_lhs)); 1680 ga_append(&ga, NUL); 1681 return (char_u *)ga.ga_data; 1682 } 1683 #endif 1684 1685 /* 1686 * Return the printable string for the key codes at "*sp". 1687 * Used for translating the lhs or rhs of a mapping to printable chars. 1688 * Advances "sp" to the next code. 1689 */ 1690 char_u * 1691 str2special( 1692 char_u **sp, 1693 int from) /* TRUE for lhs of mapping */ 1694 { 1695 int c; 1696 static char_u buf[7]; 1697 char_u *str = *sp; 1698 int modifiers = 0; 1699 int special = FALSE; 1700 1701 #ifdef FEAT_MBYTE 1702 if (has_mbyte) 1703 { 1704 char_u *p; 1705 1706 /* Try to un-escape a multi-byte character. Return the un-escaped 1707 * string if it is a multi-byte character. */ 1708 p = mb_unescape(sp); 1709 if (p != NULL) 1710 return p; 1711 } 1712 #endif 1713 1714 c = *str; 1715 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1716 { 1717 if (str[1] == KS_MODIFIER) 1718 { 1719 modifiers = str[2]; 1720 str += 3; 1721 c = *str; 1722 } 1723 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1724 { 1725 c = TO_SPECIAL(str[1], str[2]); 1726 str += 2; 1727 } 1728 if (IS_SPECIAL(c) || modifiers) /* special key */ 1729 special = TRUE; 1730 } 1731 1732 #ifdef FEAT_MBYTE 1733 if (has_mbyte && !IS_SPECIAL(c)) 1734 { 1735 int len = (*mb_ptr2len)(str); 1736 1737 /* For multi-byte characters check for an illegal byte. */ 1738 if (has_mbyte && MB_BYTE2LEN(*str) > len) 1739 { 1740 transchar_nonprint(buf, c); 1741 *sp = str + 1; 1742 return buf; 1743 } 1744 /* Since 'special' is TRUE the multi-byte character 'c' will be 1745 * processed by get_special_key_name() */ 1746 c = (*mb_ptr2char)(str); 1747 *sp = str + len; 1748 } 1749 else 1750 #endif 1751 *sp = str + 1; 1752 1753 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1754 * Use <Space> only for lhs of a mapping. */ 1755 if (special || char2cells(c) > 1 || (from && c == ' ')) 1756 return get_special_key_name(c, modifiers); 1757 buf[0] = c; 1758 buf[1] = NUL; 1759 return buf; 1760 } 1761 1762 /* 1763 * Translate a key sequence into special key names. 1764 */ 1765 void 1766 str2specialbuf(char_u *sp, char_u *buf, int len) 1767 { 1768 char_u *s; 1769 1770 *buf = NUL; 1771 while (*sp) 1772 { 1773 s = str2special(&sp, FALSE); 1774 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1775 STRCAT(buf, s); 1776 } 1777 } 1778 1779 /* 1780 * print line for :print or :list command 1781 */ 1782 void 1783 msg_prt_line(char_u *s, int list) 1784 { 1785 int c; 1786 int col = 0; 1787 int n_extra = 0; 1788 int c_extra = 0; 1789 char_u *p_extra = NULL; /* init to make SASC shut up */ 1790 int n; 1791 int attr = 0; 1792 char_u *trail = NULL; 1793 #ifdef FEAT_MBYTE 1794 int l; 1795 char_u buf[MB_MAXBYTES + 1]; 1796 #endif 1797 1798 if (curwin->w_p_list) 1799 list = TRUE; 1800 1801 /* find start of trailing whitespace */ 1802 if (list && lcs_trail) 1803 { 1804 trail = s + STRLEN(s); 1805 while (trail > s && VIM_ISWHITE(trail[-1])) 1806 --trail; 1807 } 1808 1809 /* output a space for an empty line, otherwise the line will be 1810 * overwritten */ 1811 if (*s == NUL && !(list && lcs_eol != NUL)) 1812 msg_putchar(' '); 1813 1814 while (!got_int) 1815 { 1816 if (n_extra > 0) 1817 { 1818 --n_extra; 1819 if (c_extra) 1820 c = c_extra; 1821 else 1822 c = *p_extra++; 1823 } 1824 #ifdef FEAT_MBYTE 1825 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1826 { 1827 col += (*mb_ptr2cells)(s); 1828 if (lcs_nbsp != NUL && list 1829 && (mb_ptr2char(s) == 160 1830 || mb_ptr2char(s) == 0x202f)) 1831 { 1832 mb_char2bytes(lcs_nbsp, buf); 1833 buf[(*mb_ptr2len)(buf)] = NUL; 1834 } 1835 else 1836 { 1837 mch_memmove(buf, s, (size_t)l); 1838 buf[l] = NUL; 1839 } 1840 msg_puts(buf); 1841 s += l; 1842 continue; 1843 } 1844 #endif 1845 else 1846 { 1847 attr = 0; 1848 c = *s++; 1849 if (c == TAB && (!list || lcs_tab1)) 1850 { 1851 /* tab amount depends on current column */ 1852 #ifdef FEAT_VARTABS 1853 n_extra = tabstop_padding(col, curbuf->b_p_ts, 1854 curbuf->b_p_vts_array) - 1; 1855 #else 1856 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1857 #endif 1858 if (!list) 1859 { 1860 c = ' '; 1861 c_extra = ' '; 1862 } 1863 else 1864 { 1865 c = lcs_tab1; 1866 c_extra = lcs_tab2; 1867 attr = HL_ATTR(HLF_8); 1868 } 1869 } 1870 else if (c == 160 && list && lcs_nbsp != NUL) 1871 { 1872 c = lcs_nbsp; 1873 attr = HL_ATTR(HLF_8); 1874 } 1875 else if (c == NUL && list && lcs_eol != NUL) 1876 { 1877 p_extra = (char_u *)""; 1878 c_extra = NUL; 1879 n_extra = 1; 1880 c = lcs_eol; 1881 attr = HL_ATTR(HLF_AT); 1882 --s; 1883 } 1884 else if (c != NUL && (n = byte2cells(c)) > 1) 1885 { 1886 n_extra = n - 1; 1887 p_extra = transchar_byte(c); 1888 c_extra = NUL; 1889 c = *p_extra++; 1890 /* Use special coloring to be able to distinguish <hex> from 1891 * the same in plain text. */ 1892 attr = HL_ATTR(HLF_8); 1893 } 1894 else if (c == ' ' && trail != NULL && s > trail) 1895 { 1896 c = lcs_trail; 1897 attr = HL_ATTR(HLF_8); 1898 } 1899 else if (c == ' ' && list && lcs_space != NUL) 1900 { 1901 c = lcs_space; 1902 attr = HL_ATTR(HLF_8); 1903 } 1904 } 1905 1906 if (c == NUL) 1907 break; 1908 1909 msg_putchar_attr(c, attr); 1910 col++; 1911 } 1912 msg_clr_eos(); 1913 } 1914 1915 #ifdef FEAT_MBYTE 1916 /* 1917 * Use screen_puts() to output one multi-byte character. 1918 * Return the pointer "s" advanced to the next character. 1919 */ 1920 static char_u * 1921 screen_puts_mbyte(char_u *s, int l, int attr) 1922 { 1923 int cw; 1924 1925 msg_didout = TRUE; /* remember that line is not empty */ 1926 cw = (*mb_ptr2cells)(s); 1927 if (cw > 1 && ( 1928 #ifdef FEAT_RIGHTLEFT 1929 cmdmsg_rl ? msg_col <= 1 : 1930 #endif 1931 msg_col == Columns - 1)) 1932 { 1933 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1934 msg_screen_putchar('>', HL_ATTR(HLF_AT)); 1935 return s; 1936 } 1937 1938 screen_puts_len(s, l, msg_row, msg_col, attr); 1939 #ifdef FEAT_RIGHTLEFT 1940 if (cmdmsg_rl) 1941 { 1942 msg_col -= cw; 1943 if (msg_col == 0) 1944 { 1945 msg_col = Columns; 1946 ++msg_row; 1947 } 1948 } 1949 else 1950 #endif 1951 { 1952 msg_col += cw; 1953 if (msg_col >= Columns) 1954 { 1955 msg_col = 0; 1956 ++msg_row; 1957 } 1958 } 1959 return s + l; 1960 } 1961 #endif 1962 1963 /* 1964 * Output a string to the screen at position msg_row, msg_col. 1965 * Update msg_row and msg_col for the next message. 1966 */ 1967 void 1968 msg_puts(char_u *s) 1969 { 1970 msg_puts_attr(s, 0); 1971 } 1972 1973 void 1974 msg_puts_title( 1975 char_u *s) 1976 { 1977 msg_puts_attr(s, HL_ATTR(HLF_T)); 1978 } 1979 1980 /* 1981 * Show a message in such a way that it always fits in the line. Cut out a 1982 * part in the middle and replace it with "..." when necessary. 1983 * Does not handle multi-byte characters! 1984 */ 1985 void 1986 msg_puts_long_attr(char_u *longstr, int attr) 1987 { 1988 msg_puts_long_len_attr(longstr, (int)STRLEN(longstr), attr); 1989 } 1990 1991 void 1992 msg_puts_long_len_attr(char_u *longstr, int len, int attr) 1993 { 1994 int slen = len; 1995 int room; 1996 1997 room = Columns - msg_col; 1998 if (len > room && room >= 20) 1999 { 2000 slen = (room - 3) / 2; 2001 msg_outtrans_len_attr(longstr, slen, attr); 2002 msg_puts_attr((char_u *)"...", HL_ATTR(HLF_8)); 2003 } 2004 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 2005 } 2006 2007 /* 2008 * Basic function for writing a message with highlight attributes. 2009 */ 2010 void 2011 msg_puts_attr(char_u *s, int attr) 2012 { 2013 msg_puts_attr_len(s, -1, attr); 2014 } 2015 2016 /* 2017 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 2018 * When "maxlen" is -1 there is no maximum length. 2019 * When "maxlen" is >= 0 the message is not put in the history. 2020 */ 2021 static void 2022 msg_puts_attr_len(char_u *str, int maxlen, int attr) 2023 { 2024 /* 2025 * If redirection is on, also write to the redirection file. 2026 */ 2027 redir_write(str, maxlen); 2028 2029 /* 2030 * Don't print anything when using ":silent cmd". 2031 */ 2032 if (msg_silent != 0) 2033 return; 2034 2035 /* if MSG_HIST flag set, add message to history */ 2036 if ((attr & MSG_HIST) && maxlen < 0) 2037 { 2038 add_msg_hist(str, -1, attr); 2039 attr &= ~MSG_HIST; 2040 } 2041 2042 /* 2043 * When writing something to the screen after it has scrolled, requires a 2044 * wait-return prompt later. Needed when scrolling, resetting 2045 * need_wait_return after some prompt, and then outputting something 2046 * without scrolling 2047 */ 2048 if (msg_scrolled != 0 && !msg_scrolled_ign) 2049 need_wait_return = TRUE; 2050 msg_didany = TRUE; /* remember that something was outputted */ 2051 2052 /* 2053 * If there is no valid screen, use fprintf so we can see error messages. 2054 * If termcap is not active, we may be writing in an alternate console 2055 * window, cursor positioning may not work correctly (window size may be 2056 * different, e.g. for Win32 console) or we just don't know where the 2057 * cursor is. 2058 */ 2059 if (msg_use_printf()) 2060 msg_puts_printf(str, maxlen); 2061 else 2062 msg_puts_display(str, maxlen, attr, FALSE); 2063 } 2064 2065 /* 2066 * The display part of msg_puts_attr_len(). 2067 * May be called recursively to display scroll-back text. 2068 */ 2069 static void 2070 msg_puts_display( 2071 char_u *str, 2072 int maxlen, 2073 int attr, 2074 int recurse) 2075 { 2076 char_u *s = str; 2077 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 2078 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 2079 #ifdef FEAT_MBYTE 2080 int l; 2081 int cw; 2082 #endif 2083 char_u *sb_str = str; 2084 int sb_col = msg_col; 2085 int wrap; 2086 int did_last_char; 2087 2088 did_wait_return = FALSE; 2089 while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL) 2090 { 2091 /* 2092 * We are at the end of the screen line when: 2093 * - When outputting a newline. 2094 * - When outputting a character in the last column. 2095 */ 2096 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 2097 #ifdef FEAT_RIGHTLEFT 2098 cmdmsg_rl 2099 ? ( 2100 msg_col <= 1 2101 || (*s == TAB && msg_col <= 7) 2102 # ifdef FEAT_MBYTE 2103 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2) 2104 # endif 2105 ) 2106 : 2107 #endif 2108 (msg_col + t_col >= Columns - 1 2109 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 2110 # ifdef FEAT_MBYTE 2111 || (has_mbyte && (*mb_ptr2cells)(s) > 1 2112 && msg_col + t_col >= Columns - 2) 2113 # endif 2114 )))) 2115 { 2116 /* 2117 * The screen is scrolled up when at the last row (some terminals 2118 * scroll automatically, some don't. To avoid problems we scroll 2119 * ourselves). 2120 */ 2121 if (t_col > 0) 2122 /* output postponed text */ 2123 t_puts(&t_col, t_s, s, attr); 2124 2125 /* When no more prompt and no more room, truncate here */ 2126 if (msg_no_more && lines_left == 0) 2127 break; 2128 2129 /* Scroll the screen up one line. */ 2130 msg_scroll_up(); 2131 2132 msg_row = Rows - 2; 2133 if (msg_col >= Columns) /* can happen after screen resize */ 2134 msg_col = Columns - 1; 2135 2136 /* Display char in last column before showing more-prompt. */ 2137 if (*s >= ' ' 2138 #ifdef FEAT_RIGHTLEFT 2139 && !cmdmsg_rl 2140 #endif 2141 ) 2142 { 2143 #ifdef FEAT_MBYTE 2144 if (has_mbyte) 2145 { 2146 if (enc_utf8 && maxlen >= 0) 2147 /* avoid including composing chars after the end */ 2148 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2149 else 2150 l = (*mb_ptr2len)(s); 2151 s = screen_puts_mbyte(s, l, attr); 2152 } 2153 else 2154 #endif 2155 msg_screen_putchar(*s++, attr); 2156 did_last_char = TRUE; 2157 } 2158 else 2159 did_last_char = FALSE; 2160 2161 if (p_more) 2162 /* store text for scrolling back */ 2163 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2164 2165 inc_msg_scrolled(); 2166 need_wait_return = TRUE; /* may need wait_return in main() */ 2167 redraw_cmdline = TRUE; 2168 if (cmdline_row > 0 && !exmode_active) 2169 --cmdline_row; 2170 2171 /* 2172 * If screen is completely filled and 'more' is set then wait 2173 * for a character. 2174 */ 2175 if (lines_left > 0) 2176 --lines_left; 2177 if (p_more && lines_left == 0 && State != HITRETURN 2178 && !msg_no_more && !exmode_active) 2179 { 2180 #ifdef FEAT_CON_DIALOG 2181 if (do_more_prompt(NUL)) 2182 s = confirm_msg_tail; 2183 #else 2184 (void)do_more_prompt(NUL); 2185 #endif 2186 if (quit_more) 2187 return; 2188 } 2189 2190 /* When we displayed a char in last column need to check if there 2191 * is still more. */ 2192 if (did_last_char) 2193 continue; 2194 } 2195 2196 wrap = *s == '\n' 2197 || msg_col + t_col >= Columns 2198 #ifdef FEAT_MBYTE 2199 || (has_mbyte && (*mb_ptr2cells)(s) > 1 2200 && msg_col + t_col >= Columns - 1) 2201 #endif 2202 ; 2203 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 2204 || *s == '\t' || *s == BELL)) 2205 /* output any postponed text */ 2206 t_puts(&t_col, t_s, s, attr); 2207 2208 if (wrap && p_more && !recurse) 2209 /* store text for scrolling back */ 2210 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2211 2212 if (*s == '\n') /* go to next line */ 2213 { 2214 msg_didout = FALSE; /* remember that line is empty */ 2215 #ifdef FEAT_RIGHTLEFT 2216 if (cmdmsg_rl) 2217 msg_col = Columns - 1; 2218 else 2219 #endif 2220 msg_col = 0; 2221 if (++msg_row >= Rows) /* safety check */ 2222 msg_row = Rows - 1; 2223 } 2224 else if (*s == '\r') /* go to column 0 */ 2225 { 2226 msg_col = 0; 2227 } 2228 else if (*s == '\b') /* go to previous char */ 2229 { 2230 if (msg_col) 2231 --msg_col; 2232 } 2233 else if (*s == TAB) /* translate Tab into spaces */ 2234 { 2235 do 2236 msg_screen_putchar(' ', attr); 2237 while (msg_col & 7); 2238 } 2239 else if (*s == BELL) /* beep (from ":sh") */ 2240 vim_beep(BO_SH); 2241 else 2242 { 2243 #ifdef FEAT_MBYTE 2244 if (has_mbyte) 2245 { 2246 cw = (*mb_ptr2cells)(s); 2247 if (enc_utf8 && maxlen >= 0) 2248 /* avoid including composing chars after the end */ 2249 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2250 else 2251 l = (*mb_ptr2len)(s); 2252 } 2253 else 2254 { 2255 cw = 1; 2256 l = 1; 2257 } 2258 #endif 2259 /* When drawing from right to left or when a double-wide character 2260 * doesn't fit, draw a single character here. Otherwise collect 2261 * characters and draw them all at once later. */ 2262 #if defined(FEAT_RIGHTLEFT) || defined(FEAT_MBYTE) 2263 if ( 2264 # ifdef FEAT_RIGHTLEFT 2265 cmdmsg_rl 2266 # ifdef FEAT_MBYTE 2267 || 2268 # endif 2269 # endif 2270 # ifdef FEAT_MBYTE 2271 (cw > 1 && msg_col + t_col >= Columns - 1) 2272 # endif 2273 ) 2274 { 2275 # ifdef FEAT_MBYTE 2276 if (l > 1) 2277 s = screen_puts_mbyte(s, l, attr) - 1; 2278 else 2279 # endif 2280 msg_screen_putchar(*s, attr); 2281 } 2282 else 2283 #endif 2284 { 2285 /* postpone this character until later */ 2286 if (t_col == 0) 2287 t_s = s; 2288 #ifdef FEAT_MBYTE 2289 t_col += cw; 2290 s += l - 1; 2291 #else 2292 ++t_col; 2293 #endif 2294 } 2295 } 2296 ++s; 2297 } 2298 2299 /* output any postponed text */ 2300 if (t_col > 0) 2301 t_puts(&t_col, t_s, s, attr); 2302 if (p_more && !recurse) 2303 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2304 2305 msg_check(); 2306 } 2307 2308 /* 2309 * Return TRUE when ":filter pattern" was used and "msg" does not match 2310 * "pattern". 2311 */ 2312 int 2313 message_filtered(char_u *msg) 2314 { 2315 int match; 2316 2317 if (cmdmod.filter_regmatch.regprog == NULL) 2318 return FALSE; 2319 match = vim_regexec(&cmdmod.filter_regmatch, msg, (colnr_T)0); 2320 return cmdmod.filter_force ? match : !match; 2321 } 2322 2323 /* 2324 * Scroll the screen up one line for displaying the next message line. 2325 */ 2326 static void 2327 msg_scroll_up(void) 2328 { 2329 #ifdef FEAT_GUI 2330 /* Remove the cursor before scrolling, ScreenLines[] is going 2331 * to become invalid. */ 2332 if (gui.in_use) 2333 gui_undraw_cursor(); 2334 #endif 2335 /* scrolling up always works */ 2336 mch_disable_flush(); 2337 screen_del_lines(0, 0, 1, (int)Rows, TRUE, 0, NULL); 2338 mch_enable_flush(); 2339 2340 if (!can_clear((char_u *)" ")) 2341 { 2342 /* Scrolling up doesn't result in the right background. Set the 2343 * background here. It's not efficient, but avoids that we have to do 2344 * it all over the code. */ 2345 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2346 2347 /* Also clear the last char of the last but one line if it was not 2348 * cleared before to avoid a scroll-up. */ 2349 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2350 screen_fill((int)Rows - 2, (int)Rows - 1, 2351 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2352 } 2353 } 2354 2355 /* 2356 * Increment "msg_scrolled". 2357 */ 2358 static void 2359 inc_msg_scrolled(void) 2360 { 2361 #ifdef FEAT_EVAL 2362 if (*get_vim_var_str(VV_SCROLLSTART) == NUL) 2363 { 2364 char_u *p = sourcing_name; 2365 char_u *tofree = NULL; 2366 int len; 2367 2368 /* v:scrollstart is empty, set it to the script/function name and line 2369 * number */ 2370 if (p == NULL) 2371 p = (char_u *)_("Unknown"); 2372 else 2373 { 2374 len = (int)STRLEN(p) + 40; 2375 tofree = alloc(len); 2376 if (tofree != NULL) 2377 { 2378 vim_snprintf((char *)tofree, len, _("%s line %ld"), 2379 p, (long)sourcing_lnum); 2380 p = tofree; 2381 } 2382 } 2383 set_vim_var_string(VV_SCROLLSTART, p, -1); 2384 vim_free(tofree); 2385 } 2386 #endif 2387 ++msg_scrolled; 2388 if (must_redraw < VALID) 2389 must_redraw = VALID; 2390 } 2391 2392 /* 2393 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2394 * store the displayed text and remember where screen lines start. 2395 */ 2396 typedef struct msgchunk_S msgchunk_T; 2397 struct msgchunk_S 2398 { 2399 msgchunk_T *sb_next; 2400 msgchunk_T *sb_prev; 2401 char sb_eol; /* TRUE when line ends after this text */ 2402 int sb_msg_col; /* column in which text starts */ 2403 int sb_attr; /* text attributes */ 2404 char_u sb_text[1]; /* text to be displayed, actually longer */ 2405 }; 2406 2407 static msgchunk_T *last_msgchunk = NULL; /* last displayed text */ 2408 2409 static msgchunk_T *msg_sb_start(msgchunk_T *mps); 2410 static msgchunk_T *disp_sb_line(int row, msgchunk_T *smp); 2411 2412 typedef enum { 2413 SB_CLEAR_NONE = 0, 2414 SB_CLEAR_ALL, 2415 SB_CLEAR_CMDLINE_BUSY, 2416 SB_CLEAR_CMDLINE_DONE 2417 } sb_clear_T; 2418 2419 /* When to clear text on next msg. */ 2420 static sb_clear_T do_clear_sb_text = SB_CLEAR_NONE; 2421 2422 /* 2423 * Store part of a printed message for displaying when scrolling back. 2424 */ 2425 static void 2426 store_sb_text( 2427 char_u **sb_str, /* start of string */ 2428 char_u *s, /* just after string */ 2429 int attr, 2430 int *sb_col, 2431 int finish) /* line ends */ 2432 { 2433 msgchunk_T *mp; 2434 2435 if (do_clear_sb_text == SB_CLEAR_ALL 2436 || do_clear_sb_text == SB_CLEAR_CMDLINE_DONE) 2437 { 2438 clear_sb_text(do_clear_sb_text == SB_CLEAR_ALL); 2439 do_clear_sb_text = SB_CLEAR_NONE; 2440 } 2441 2442 if (s > *sb_str) 2443 { 2444 mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str))); 2445 if (mp != NULL) 2446 { 2447 mp->sb_eol = finish; 2448 mp->sb_msg_col = *sb_col; 2449 mp->sb_attr = attr; 2450 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2451 2452 if (last_msgchunk == NULL) 2453 { 2454 last_msgchunk = mp; 2455 mp->sb_prev = NULL; 2456 } 2457 else 2458 { 2459 mp->sb_prev = last_msgchunk; 2460 last_msgchunk->sb_next = mp; 2461 last_msgchunk = mp; 2462 } 2463 mp->sb_next = NULL; 2464 } 2465 } 2466 else if (finish && last_msgchunk != NULL) 2467 last_msgchunk->sb_eol = TRUE; 2468 2469 *sb_str = s; 2470 *sb_col = 0; 2471 } 2472 2473 /* 2474 * Finished showing messages, clear the scroll-back text on the next message. 2475 */ 2476 void 2477 may_clear_sb_text(void) 2478 { 2479 do_clear_sb_text = SB_CLEAR_ALL; 2480 } 2481 2482 /* 2483 * Starting to edit the command line, do not clear messages now. 2484 */ 2485 void 2486 sb_text_start_cmdline(void) 2487 { 2488 do_clear_sb_text = SB_CLEAR_CMDLINE_BUSY; 2489 msg_sb_eol(); 2490 } 2491 2492 /* 2493 * Ending to edit the command line. Clear old lines but the last one later. 2494 */ 2495 void 2496 sb_text_end_cmdline(void) 2497 { 2498 do_clear_sb_text = SB_CLEAR_CMDLINE_DONE; 2499 } 2500 2501 /* 2502 * Clear any text remembered for scrolling back. 2503 * When "all" is FALSE keep the last line. 2504 * Called when redrawing the screen. 2505 */ 2506 void 2507 clear_sb_text(int all) 2508 { 2509 msgchunk_T *mp; 2510 msgchunk_T **lastp; 2511 2512 if (all) 2513 lastp = &last_msgchunk; 2514 else 2515 { 2516 if (last_msgchunk == NULL) 2517 return; 2518 lastp = &last_msgchunk->sb_prev; 2519 } 2520 2521 while (*lastp != NULL) 2522 { 2523 mp = (*lastp)->sb_prev; 2524 vim_free(*lastp); 2525 *lastp = mp; 2526 } 2527 } 2528 2529 /* 2530 * "g<" command. 2531 */ 2532 void 2533 show_sb_text(void) 2534 { 2535 msgchunk_T *mp; 2536 2537 /* Only show something if there is more than one line, otherwise it looks 2538 * weird, typing a command without output results in one line. */ 2539 mp = msg_sb_start(last_msgchunk); 2540 if (mp == NULL || mp->sb_prev == NULL) 2541 vim_beep(BO_MESS); 2542 else 2543 { 2544 do_more_prompt('G'); 2545 wait_return(FALSE); 2546 } 2547 } 2548 2549 /* 2550 * Move to the start of screen line in already displayed text. 2551 */ 2552 static msgchunk_T * 2553 msg_sb_start(msgchunk_T *mps) 2554 { 2555 msgchunk_T *mp = mps; 2556 2557 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2558 mp = mp->sb_prev; 2559 return mp; 2560 } 2561 2562 /* 2563 * Mark the last message chunk as finishing the line. 2564 */ 2565 void 2566 msg_sb_eol(void) 2567 { 2568 if (last_msgchunk != NULL) 2569 last_msgchunk->sb_eol = TRUE; 2570 } 2571 2572 /* 2573 * Display a screen line from previously displayed text at row "row". 2574 * Returns a pointer to the text for the next line (can be NULL). 2575 */ 2576 static msgchunk_T * 2577 disp_sb_line(int row, msgchunk_T *smp) 2578 { 2579 msgchunk_T *mp = smp; 2580 char_u *p; 2581 2582 for (;;) 2583 { 2584 msg_row = row; 2585 msg_col = mp->sb_msg_col; 2586 p = mp->sb_text; 2587 if (*p == '\n') /* don't display the line break */ 2588 ++p; 2589 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2590 if (mp->sb_eol || mp->sb_next == NULL) 2591 break; 2592 mp = mp->sb_next; 2593 } 2594 return mp->sb_next; 2595 } 2596 2597 /* 2598 * Output any postponed text for msg_puts_attr_len(). 2599 */ 2600 static void 2601 t_puts( 2602 int *t_col, 2603 char_u *t_s, 2604 char_u *s, 2605 int attr) 2606 { 2607 /* output postponed text */ 2608 msg_didout = TRUE; /* remember that line is not empty */ 2609 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2610 msg_col += *t_col; 2611 *t_col = 0; 2612 #ifdef FEAT_MBYTE 2613 /* If the string starts with a composing character don't increment the 2614 * column position for it. */ 2615 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2616 --msg_col; 2617 #endif 2618 if (msg_col >= Columns) 2619 { 2620 msg_col = 0; 2621 ++msg_row; 2622 } 2623 } 2624 2625 /* 2626 * Returns TRUE when messages should be printed with mch_errmsg(). 2627 * This is used when there is no valid screen, so we can see error messages. 2628 * If termcap is not active, we may be writing in an alternate console 2629 * window, cursor positioning may not work correctly (window size may be 2630 * different, e.g. for Win32 console) or we just don't know where the 2631 * cursor is. 2632 */ 2633 int 2634 msg_use_printf(void) 2635 { 2636 return (!msg_check_screen() 2637 #if defined(WIN3264) && !defined(FEAT_GUI_MSWIN) 2638 || !termcap_active 2639 #endif 2640 || (swapping_screen() && !termcap_active) 2641 ); 2642 } 2643 2644 /* 2645 * Print a message when there is no valid screen. 2646 */ 2647 static void 2648 msg_puts_printf(char_u *str, int maxlen) 2649 { 2650 char_u *s = str; 2651 char_u buf[4]; 2652 char_u *p; 2653 #ifdef WIN3264 2654 # if defined(FEAT_MBYTE) && !defined(FEAT_GUI_MSWIN) 2655 char_u *ccp = NULL; 2656 2657 # endif 2658 if (!(silent_mode && p_verbose == 0)) 2659 mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */ 2660 2661 # if defined(FEAT_MBYTE) && !defined(FEAT_GUI_MSWIN) 2662 if (enc_codepage >= 0 && (int)GetConsoleCP() != enc_codepage) 2663 { 2664 int inlen = (int)STRLEN(str); 2665 int outlen; 2666 WCHAR *widestr = (WCHAR *)enc_to_utf16(str, &inlen); 2667 2668 if (widestr != NULL) 2669 { 2670 WideCharToMultiByte_alloc(GetConsoleCP(), 0, widestr, inlen, 2671 (LPSTR *)&ccp, &outlen, 0, 0); 2672 vim_free(widestr); 2673 s = str = ccp; 2674 } 2675 } 2676 # endif 2677 #endif 2678 while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL) 2679 { 2680 if (!(silent_mode && p_verbose == 0)) 2681 { 2682 /* NL --> CR NL translation (for Unix, not for "--version") */ 2683 p = &buf[0]; 2684 if (*s == '\n' && !info_message) 2685 *p++ = '\r'; 2686 #if defined(USE_CR) 2687 else 2688 #endif 2689 *p++ = *s; 2690 *p = '\0'; 2691 if (info_message) /* informative message, not an error */ 2692 mch_msg((char *)buf); 2693 else 2694 mch_errmsg((char *)buf); 2695 } 2696 2697 /* primitive way to compute the current column */ 2698 #ifdef FEAT_RIGHTLEFT 2699 if (cmdmsg_rl) 2700 { 2701 if (*s == '\r' || *s == '\n') 2702 msg_col = Columns - 1; 2703 else 2704 --msg_col; 2705 } 2706 else 2707 #endif 2708 { 2709 if (*s == '\r' || *s == '\n') 2710 msg_col = 0; 2711 else 2712 ++msg_col; 2713 } 2714 ++s; 2715 } 2716 msg_didout = TRUE; /* assume that line is not empty */ 2717 2718 #ifdef WIN3264 2719 # if defined(FEAT_MBYTE) && !defined(FEAT_GUI_MSWIN) 2720 vim_free(ccp); 2721 # endif 2722 if (!(silent_mode && p_verbose == 0)) 2723 mch_settmode(TMODE_RAW); 2724 #endif 2725 } 2726 2727 /* 2728 * Show the more-prompt and handle the user response. 2729 * This takes care of scrolling back and displaying previously displayed text. 2730 * When at hit-enter prompt "typed_char" is the already typed character, 2731 * otherwise it's NUL. 2732 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2733 */ 2734 static int 2735 do_more_prompt(int typed_char) 2736 { 2737 static int entered = FALSE; 2738 int used_typed_char = typed_char; 2739 int oldState = State; 2740 int c; 2741 #ifdef FEAT_CON_DIALOG 2742 int retval = FALSE; 2743 #endif 2744 int toscroll; 2745 msgchunk_T *mp_last = NULL; 2746 msgchunk_T *mp; 2747 int i; 2748 2749 /* We get called recursively when a timer callback outputs a message. In 2750 * that case don't show another prompt. Also when at the hit-Enter prompt 2751 * and nothing was typed. */ 2752 if (entered || (State == HITRETURN && typed_char == 0)) 2753 return FALSE; 2754 entered = TRUE; 2755 2756 if (typed_char == 'G') 2757 { 2758 /* "g<": Find first line on the last page. */ 2759 mp_last = msg_sb_start(last_msgchunk); 2760 for (i = 0; i < Rows - 2 && mp_last != NULL 2761 && mp_last->sb_prev != NULL; ++i) 2762 mp_last = msg_sb_start(mp_last->sb_prev); 2763 } 2764 2765 State = ASKMORE; 2766 #ifdef FEAT_MOUSE 2767 setmouse(); 2768 #endif 2769 if (typed_char == NUL) 2770 msg_moremsg(FALSE); 2771 for (;;) 2772 { 2773 /* 2774 * Get a typed character directly from the user. 2775 */ 2776 if (used_typed_char != NUL) 2777 { 2778 c = used_typed_char; /* was typed at hit-enter prompt */ 2779 used_typed_char = NUL; 2780 } 2781 else 2782 c = get_keystroke(); 2783 2784 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2785 if (c == K_MENU) 2786 { 2787 int idx = get_menu_index(current_menu, ASKMORE); 2788 2789 /* Used a menu. If it starts with CTRL-Y, it must 2790 * be a "Copy" for the clipboard. Otherwise 2791 * assume that we end */ 2792 if (idx == MENU_INDEX_INVALID) 2793 continue; 2794 c = *current_menu->strings[idx]; 2795 if (c != NUL && current_menu->strings[idx][1] != NUL) 2796 ins_typebuf(current_menu->strings[idx] + 1, 2797 current_menu->noremap[idx], 0, TRUE, 2798 current_menu->silent[idx]); 2799 } 2800 #endif 2801 2802 toscroll = 0; 2803 switch (c) 2804 { 2805 case BS: /* scroll one line back */ 2806 case K_BS: 2807 case 'k': 2808 case K_UP: 2809 toscroll = -1; 2810 break; 2811 2812 case CAR: /* one extra line */ 2813 case NL: 2814 case 'j': 2815 case K_DOWN: 2816 toscroll = 1; 2817 break; 2818 2819 case 'u': /* Up half a page */ 2820 toscroll = -(Rows / 2); 2821 break; 2822 2823 case 'd': /* Down half a page */ 2824 toscroll = Rows / 2; 2825 break; 2826 2827 case 'b': /* one page back */ 2828 case K_PAGEUP: 2829 toscroll = -(Rows - 1); 2830 break; 2831 2832 case ' ': /* one extra page */ 2833 case 'f': 2834 case K_PAGEDOWN: 2835 case K_LEFTMOUSE: 2836 toscroll = Rows - 1; 2837 break; 2838 2839 case 'g': /* all the way back to the start */ 2840 toscroll = -999999; 2841 break; 2842 2843 case 'G': /* all the way to the end */ 2844 toscroll = 999999; 2845 lines_left = 999999; 2846 break; 2847 2848 case ':': /* start new command line */ 2849 #ifdef FEAT_CON_DIALOG 2850 if (!confirm_msg_used) 2851 #endif 2852 { 2853 /* Since got_int is set all typeahead will be flushed, but we 2854 * want to keep this ':', remember that in a special way. */ 2855 typeahead_noflush(':'); 2856 #ifdef FEAT_TERMINAL 2857 skip_term_loop = TRUE; 2858 #endif 2859 cmdline_row = Rows - 1; /* put ':' on this line */ 2860 skip_redraw = TRUE; /* skip redraw once */ 2861 need_wait_return = FALSE; /* don't wait in main() */ 2862 } 2863 /* FALLTHROUGH */ 2864 case 'q': /* quit */ 2865 case Ctrl_C: 2866 case ESC: 2867 #ifdef FEAT_CON_DIALOG 2868 if (confirm_msg_used) 2869 { 2870 /* Jump to the choices of the dialog. */ 2871 retval = TRUE; 2872 } 2873 else 2874 #endif 2875 { 2876 got_int = TRUE; 2877 quit_more = TRUE; 2878 } 2879 /* When there is some more output (wrapping line) display that 2880 * without another prompt. */ 2881 lines_left = Rows - 1; 2882 break; 2883 2884 #ifdef FEAT_CLIPBOARD 2885 case Ctrl_Y: 2886 /* Strange way to allow copying (yanking) a modeless 2887 * selection at the more prompt. Use CTRL-Y, 2888 * because the same is used in Cmdline-mode and at the 2889 * hit-enter prompt. However, scrolling one line up 2890 * might be expected... */ 2891 if (clip_star.state == SELECT_DONE) 2892 clip_copy_modeless_selection(TRUE); 2893 continue; 2894 #endif 2895 default: /* no valid response */ 2896 msg_moremsg(TRUE); 2897 continue; 2898 } 2899 2900 if (toscroll != 0) 2901 { 2902 if (toscroll < 0) 2903 { 2904 /* go to start of last line */ 2905 if (mp_last == NULL) 2906 mp = msg_sb_start(last_msgchunk); 2907 else if (mp_last->sb_prev != NULL) 2908 mp = msg_sb_start(mp_last->sb_prev); 2909 else 2910 mp = NULL; 2911 2912 /* go to start of line at top of the screen */ 2913 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2914 ++i) 2915 mp = msg_sb_start(mp->sb_prev); 2916 2917 if (mp != NULL && mp->sb_prev != NULL) 2918 { 2919 /* Find line to be displayed at top. */ 2920 for (i = 0; i > toscroll; --i) 2921 { 2922 if (mp == NULL || mp->sb_prev == NULL) 2923 break; 2924 mp = msg_sb_start(mp->sb_prev); 2925 if (mp_last == NULL) 2926 mp_last = msg_sb_start(last_msgchunk); 2927 else 2928 mp_last = msg_sb_start(mp_last->sb_prev); 2929 } 2930 2931 if (toscroll == -1 && screen_ins_lines(0, 0, 1, 2932 (int)Rows, 0, NULL) == OK) 2933 { 2934 /* display line at top */ 2935 (void)disp_sb_line(0, mp); 2936 } 2937 else 2938 { 2939 /* redisplay all lines */ 2940 screenclear(); 2941 for (i = 0; mp != NULL && i < Rows - 1; ++i) 2942 { 2943 mp = disp_sb_line(i, mp); 2944 ++msg_scrolled; 2945 } 2946 } 2947 toscroll = 0; 2948 } 2949 } 2950 else 2951 { 2952 /* First display any text that we scrolled back. */ 2953 while (toscroll > 0 && mp_last != NULL) 2954 { 2955 /* scroll up, display line at bottom */ 2956 msg_scroll_up(); 2957 inc_msg_scrolled(); 2958 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2959 (int)Columns, ' ', ' ', 0); 2960 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2961 --toscroll; 2962 } 2963 } 2964 2965 if (toscroll <= 0) 2966 { 2967 /* displayed the requested text, more prompt again */ 2968 screen_fill((int)Rows - 1, (int)Rows, 0, 2969 (int)Columns, ' ', ' ', 0); 2970 msg_moremsg(FALSE); 2971 continue; 2972 } 2973 2974 /* display more text, return to caller */ 2975 lines_left = toscroll; 2976 } 2977 2978 break; 2979 } 2980 2981 /* clear the --more-- message */ 2982 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2983 State = oldState; 2984 #ifdef FEAT_MOUSE 2985 setmouse(); 2986 #endif 2987 if (quit_more) 2988 { 2989 msg_row = Rows - 1; 2990 msg_col = 0; 2991 } 2992 #ifdef FEAT_RIGHTLEFT 2993 else if (cmdmsg_rl) 2994 msg_col = Columns - 1; 2995 #endif 2996 2997 entered = FALSE; 2998 #ifdef FEAT_CON_DIALOG 2999 return retval; 3000 #else 3001 return FALSE; 3002 #endif 3003 } 3004 3005 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 3006 3007 #ifdef mch_errmsg 3008 # undef mch_errmsg 3009 #endif 3010 #ifdef mch_msg 3011 # undef mch_msg 3012 #endif 3013 3014 /* 3015 * Give an error message. To be used when the screen hasn't been initialized 3016 * yet. When stderr can't be used, collect error messages until the GUI has 3017 * started and they can be displayed in a message box. 3018 */ 3019 void 3020 mch_errmsg(char *str) 3021 { 3022 int len; 3023 3024 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 3025 /* On Unix use stderr if it's a tty. 3026 * When not going to start the GUI also use stderr. 3027 * On Mac, when started from Finder, stderr is the console. */ 3028 if ( 3029 # ifdef UNIX 3030 # ifdef MACOS_X 3031 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 3032 # else 3033 isatty(2) 3034 # endif 3035 # ifdef FEAT_GUI 3036 || 3037 # endif 3038 # endif 3039 # ifdef FEAT_GUI 3040 !(gui.in_use || gui.starting) 3041 # endif 3042 ) 3043 { 3044 fprintf(stderr, "%s", str); 3045 return; 3046 } 3047 #endif 3048 3049 /* avoid a delay for a message that isn't there */ 3050 emsg_on_display = FALSE; 3051 3052 len = (int)STRLEN(str) + 1; 3053 if (error_ga.ga_growsize == 0) 3054 { 3055 error_ga.ga_growsize = 80; 3056 error_ga.ga_itemsize = 1; 3057 } 3058 if (ga_grow(&error_ga, len) == OK) 3059 { 3060 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 3061 (char_u *)str, len); 3062 #ifdef UNIX 3063 /* remove CR characters, they are displayed */ 3064 { 3065 char_u *p; 3066 3067 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 3068 for (;;) 3069 { 3070 p = vim_strchr(p, '\r'); 3071 if (p == NULL) 3072 break; 3073 *p = ' '; 3074 } 3075 } 3076 #endif 3077 --len; /* don't count the NUL at the end */ 3078 error_ga.ga_len += len; 3079 } 3080 } 3081 3082 /* 3083 * Give a message. To be used when the screen hasn't been initialized yet. 3084 * When there is no tty, collect messages until the GUI has started and they 3085 * can be displayed in a message box. 3086 */ 3087 void 3088 mch_msg(char *str) 3089 { 3090 #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 3091 /* On Unix use stdout if we have a tty. This allows "vim -h | more" and 3092 * uses mch_errmsg() when started from the desktop. 3093 * When not going to start the GUI also use stdout. 3094 * On Mac, when started from Finder, stderr is the console. */ 3095 if ( 3096 # ifdef UNIX 3097 # ifdef MACOS_X 3098 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 3099 # else 3100 isatty(2) 3101 # endif 3102 # ifdef FEAT_GUI 3103 || 3104 # endif 3105 # endif 3106 # ifdef FEAT_GUI 3107 !(gui.in_use || gui.starting) 3108 # endif 3109 ) 3110 { 3111 printf("%s", str); 3112 return; 3113 } 3114 # endif 3115 mch_errmsg(str); 3116 } 3117 #endif /* USE_MCH_ERRMSG */ 3118 3119 /* 3120 * Put a character on the screen at the current message position and advance 3121 * to the next position. Only for printable ASCII! 3122 */ 3123 static void 3124 msg_screen_putchar(int c, int attr) 3125 { 3126 msg_didout = TRUE; /* remember that line is not empty */ 3127 screen_putchar(c, msg_row, msg_col, attr); 3128 #ifdef FEAT_RIGHTLEFT 3129 if (cmdmsg_rl) 3130 { 3131 if (--msg_col == 0) 3132 { 3133 msg_col = Columns; 3134 ++msg_row; 3135 } 3136 } 3137 else 3138 #endif 3139 { 3140 if (++msg_col >= Columns) 3141 { 3142 msg_col = 0; 3143 ++msg_row; 3144 } 3145 } 3146 } 3147 3148 void 3149 msg_moremsg(int full) 3150 { 3151 int attr; 3152 char_u *s = (char_u *)_("-- More --"); 3153 3154 attr = HL_ATTR(HLF_M); 3155 screen_puts(s, (int)Rows - 1, 0, attr); 3156 if (full) 3157 screen_puts((char_u *) 3158 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 3159 (int)Rows - 1, vim_strsize(s), attr); 3160 } 3161 3162 /* 3163 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 3164 * exmode_active. 3165 */ 3166 void 3167 repeat_message(void) 3168 { 3169 if (State == ASKMORE) 3170 { 3171 msg_moremsg(TRUE); /* display --more-- message again */ 3172 msg_row = Rows - 1; 3173 } 3174 #ifdef FEAT_CON_DIALOG 3175 else if (State == CONFIRM) 3176 { 3177 display_confirm_msg(); /* display ":confirm" message again */ 3178 msg_row = Rows - 1; 3179 } 3180 #endif 3181 else if (State == EXTERNCMD) 3182 { 3183 windgoto(msg_row, msg_col); /* put cursor back */ 3184 } 3185 else if (State == HITRETURN || State == SETWSIZE) 3186 { 3187 if (msg_row == Rows - 1) 3188 { 3189 /* Avoid drawing the "hit-enter" prompt below the previous one, 3190 * overwrite it. Esp. useful when regaining focus and a 3191 * FocusGained autocmd exists but didn't draw anything. */ 3192 msg_didout = FALSE; 3193 msg_col = 0; 3194 msg_clr_eos(); 3195 } 3196 hit_return_msg(); 3197 msg_row = Rows - 1; 3198 } 3199 } 3200 3201 /* 3202 * msg_check_screen - check if the screen is initialized. 3203 * Also check msg_row and msg_col, if they are too big it may cause a crash. 3204 * While starting the GUI the terminal codes will be set for the GUI, but the 3205 * output goes to the terminal. Don't use the terminal codes then. 3206 */ 3207 static int 3208 msg_check_screen(void) 3209 { 3210 if (!full_screen || !screen_valid(FALSE)) 3211 return FALSE; 3212 3213 if (msg_row >= Rows) 3214 msg_row = Rows - 1; 3215 if (msg_col >= Columns) 3216 msg_col = Columns - 1; 3217 return TRUE; 3218 } 3219 3220 /* 3221 * Clear from current message position to end of screen. 3222 * Skip this when ":silent" was used, no need to clear for redirection. 3223 */ 3224 void 3225 msg_clr_eos(void) 3226 { 3227 if (msg_silent == 0) 3228 msg_clr_eos_force(); 3229 } 3230 3231 /* 3232 * Clear from current message position to end of screen. 3233 * Note: msg_col is not updated, so we remember the end of the message 3234 * for msg_check(). 3235 */ 3236 void 3237 msg_clr_eos_force(void) 3238 { 3239 if (msg_use_printf()) 3240 { 3241 if (full_screen) /* only when termcap codes are valid */ 3242 { 3243 if (*T_CD) 3244 out_str(T_CD); /* clear to end of display */ 3245 else if (*T_CE) 3246 out_str(T_CE); /* clear to end of line */ 3247 } 3248 } 3249 else 3250 { 3251 #ifdef FEAT_RIGHTLEFT 3252 if (cmdmsg_rl) 3253 { 3254 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 3255 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3256 } 3257 else 3258 #endif 3259 { 3260 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 3261 ' ', ' ', 0); 3262 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3263 } 3264 } 3265 } 3266 3267 /* 3268 * Clear the command line. 3269 */ 3270 void 3271 msg_clr_cmdline(void) 3272 { 3273 msg_row = cmdline_row; 3274 msg_col = 0; 3275 msg_clr_eos_force(); 3276 } 3277 3278 /* 3279 * end putting a message on the screen 3280 * call wait_return if the message does not fit in the available space 3281 * return TRUE if wait_return not called. 3282 */ 3283 int 3284 msg_end(void) 3285 { 3286 /* 3287 * If the string is larger than the window, 3288 * or the ruler option is set and we run into it, 3289 * we have to redraw the window. 3290 * Do not do this if we are abandoning the file or editing the command line. 3291 */ 3292 if (!exiting && need_wait_return && !(State & CMDLINE)) 3293 { 3294 wait_return(FALSE); 3295 return FALSE; 3296 } 3297 out_flush(); 3298 return TRUE; 3299 } 3300 3301 /* 3302 * If the written message runs into the shown command or ruler, we have to 3303 * wait for hit-return and redraw the window later. 3304 */ 3305 void 3306 msg_check(void) 3307 { 3308 if (msg_row == Rows - 1 && msg_col >= sc_col) 3309 { 3310 need_wait_return = TRUE; 3311 redraw_cmdline = TRUE; 3312 } 3313 } 3314 3315 /* 3316 * May write a string to the redirection file. 3317 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3318 */ 3319 static void 3320 redir_write(char_u *str, int maxlen) 3321 { 3322 char_u *s = str; 3323 static int cur_col = 0; 3324 3325 /* Don't do anything for displaying prompts and the like. */ 3326 if (redir_off) 3327 return; 3328 3329 /* If 'verbosefile' is set prepare for writing in that file. */ 3330 if (*p_vfile != NUL && verbose_fd == NULL) 3331 verbose_open(); 3332 3333 if (redirecting()) 3334 { 3335 /* If the string doesn't start with CR or NL, go to msg_col */ 3336 if (*s != '\n' && *s != '\r') 3337 { 3338 while (cur_col < msg_col) 3339 { 3340 #ifdef FEAT_EVAL 3341 if (redir_execute) 3342 execute_redir_str((char_u *)" ", -1); 3343 else if (redir_reg) 3344 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 3345 else if (redir_vname) 3346 var_redir_str((char_u *)" ", -1); 3347 else 3348 #endif 3349 if (redir_fd != NULL) 3350 fputs(" ", redir_fd); 3351 if (verbose_fd != NULL) 3352 fputs(" ", verbose_fd); 3353 ++cur_col; 3354 } 3355 } 3356 3357 #ifdef FEAT_EVAL 3358 if (redir_execute) 3359 execute_redir_str(s, maxlen); 3360 else if (redir_reg) 3361 write_reg_contents(redir_reg, s, maxlen, TRUE); 3362 else if (redir_vname) 3363 var_redir_str(s, maxlen); 3364 #endif 3365 3366 /* Write and adjust the current column. */ 3367 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3368 { 3369 #ifdef FEAT_EVAL 3370 if (!redir_reg && !redir_vname && !redir_execute) 3371 #endif 3372 if (redir_fd != NULL) 3373 putc(*s, redir_fd); 3374 if (verbose_fd != NULL) 3375 putc(*s, verbose_fd); 3376 if (*s == '\r' || *s == '\n') 3377 cur_col = 0; 3378 else if (*s == '\t') 3379 cur_col += (8 - cur_col % 8); 3380 else 3381 ++cur_col; 3382 ++s; 3383 } 3384 3385 if (msg_silent != 0) /* should update msg_col */ 3386 msg_col = cur_col; 3387 } 3388 } 3389 3390 int 3391 redirecting(void) 3392 { 3393 return redir_fd != NULL || *p_vfile != NUL 3394 #ifdef FEAT_EVAL 3395 || redir_reg || redir_vname || redir_execute 3396 #endif 3397 ; 3398 } 3399 3400 /* 3401 * Before giving verbose message. 3402 * Must always be called paired with verbose_leave()! 3403 */ 3404 void 3405 verbose_enter(void) 3406 { 3407 if (*p_vfile != NUL) 3408 ++msg_silent; 3409 } 3410 3411 /* 3412 * After giving verbose message. 3413 * Must always be called paired with verbose_enter()! 3414 */ 3415 void 3416 verbose_leave(void) 3417 { 3418 if (*p_vfile != NUL) 3419 if (--msg_silent < 0) 3420 msg_silent = 0; 3421 } 3422 3423 /* 3424 * Like verbose_enter() and set msg_scroll when displaying the message. 3425 */ 3426 void 3427 verbose_enter_scroll(void) 3428 { 3429 if (*p_vfile != NUL) 3430 ++msg_silent; 3431 else 3432 /* always scroll up, don't overwrite */ 3433 msg_scroll = TRUE; 3434 } 3435 3436 /* 3437 * Like verbose_leave() and set cmdline_row when displaying the message. 3438 */ 3439 void 3440 verbose_leave_scroll(void) 3441 { 3442 if (*p_vfile != NUL) 3443 { 3444 if (--msg_silent < 0) 3445 msg_silent = 0; 3446 } 3447 else 3448 cmdline_row = msg_row; 3449 } 3450 3451 /* 3452 * Called when 'verbosefile' is set: stop writing to the file. 3453 */ 3454 void 3455 verbose_stop(void) 3456 { 3457 if (verbose_fd != NULL) 3458 { 3459 fclose(verbose_fd); 3460 verbose_fd = NULL; 3461 } 3462 verbose_did_open = FALSE; 3463 } 3464 3465 /* 3466 * Open the file 'verbosefile'. 3467 * Return FAIL or OK. 3468 */ 3469 int 3470 verbose_open(void) 3471 { 3472 if (verbose_fd == NULL && !verbose_did_open) 3473 { 3474 /* Only give the error message once. */ 3475 verbose_did_open = TRUE; 3476 3477 verbose_fd = mch_fopen((char *)p_vfile, "a"); 3478 if (verbose_fd == NULL) 3479 { 3480 EMSG2(_(e_notopen), p_vfile); 3481 return FAIL; 3482 } 3483 } 3484 return OK; 3485 } 3486 3487 /* 3488 * Give a warning message (for searching). 3489 * Use 'w' highlighting and may repeat the message after redrawing 3490 */ 3491 void 3492 give_warning(char_u *message, int hl) 3493 { 3494 /* Don't do this for ":silent". */ 3495 if (msg_silent != 0) 3496 return; 3497 3498 /* Don't want a hit-enter prompt here. */ 3499 ++no_wait_return; 3500 3501 #ifdef FEAT_EVAL 3502 set_vim_var_string(VV_WARNINGMSG, message, -1); 3503 #endif 3504 VIM_CLEAR(keep_msg); 3505 if (hl) 3506 keep_msg_attr = HL_ATTR(HLF_W); 3507 else 3508 keep_msg_attr = 0; 3509 if (msg_attr(message, keep_msg_attr) && msg_scrolled == 0) 3510 set_keep_msg(message, keep_msg_attr); 3511 msg_didout = FALSE; /* overwrite this message */ 3512 msg_nowait = TRUE; /* don't wait for this message */ 3513 msg_col = 0; 3514 3515 --no_wait_return; 3516 } 3517 3518 void 3519 give_warning2(char_u *message, char_u *a1, int hl) 3520 { 3521 vim_snprintf((char *)IObuff, IOSIZE, (char *)message, a1); 3522 give_warning(IObuff, hl); 3523 } 3524 3525 /* 3526 * Advance msg cursor to column "col". 3527 */ 3528 void 3529 msg_advance(int col) 3530 { 3531 if (msg_silent != 0) /* nothing to advance to */ 3532 { 3533 msg_col = col; /* for redirection, may fill it up later */ 3534 return; 3535 } 3536 if (col >= Columns) /* not enough room */ 3537 col = Columns - 1; 3538 #ifdef FEAT_RIGHTLEFT 3539 if (cmdmsg_rl) 3540 while (msg_col > Columns - col) 3541 msg_putchar(' '); 3542 else 3543 #endif 3544 while (msg_col < col) 3545 msg_putchar(' '); 3546 } 3547 3548 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3549 /* 3550 * Used for "confirm()" function, and the :confirm command prefix. 3551 * Versions which haven't got flexible dialogs yet, and console 3552 * versions, get this generic handler which uses the command line. 3553 * 3554 * type = one of: 3555 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3556 * title = title string (can be NULL for default) 3557 * (neither used in console dialogs at the moment) 3558 * 3559 * Format of the "buttons" string: 3560 * "Button1Name\nButton2Name\nButton3Name" 3561 * The first button should normally be the default/accept 3562 * The second button should be the 'Cancel' button 3563 * Other buttons- use your imagination! 3564 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3565 * different letter. 3566 */ 3567 int 3568 do_dialog( 3569 int type UNUSED, 3570 char_u *title UNUSED, 3571 char_u *message, 3572 char_u *buttons, 3573 int dfltbutton, 3574 char_u *textfield UNUSED, /* IObuff for inputdialog(), NULL 3575 otherwise */ 3576 int ex_cmd) /* when TRUE pressing : accepts default and starts 3577 Ex command */ 3578 { 3579 int oldState; 3580 int retval = 0; 3581 char_u *hotkeys; 3582 int c; 3583 int i; 3584 3585 #ifndef NO_CONSOLE 3586 /* Don't output anything in silent mode ("ex -s") */ 3587 if (silent_mode) 3588 return dfltbutton; /* return default option */ 3589 #endif 3590 3591 #ifdef FEAT_GUI_DIALOG 3592 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3593 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3594 { 3595 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3596 textfield, ex_cmd); 3597 /* avoid a hit-enter prompt without clearing the cmdline */ 3598 need_wait_return = FALSE; 3599 emsg_on_display = FALSE; 3600 cmdline_row = msg_row; 3601 3602 /* Flush output to avoid that further messages and redrawing is done 3603 * in the wrong order. */ 3604 out_flush(); 3605 gui_mch_update(); 3606 3607 return c; 3608 } 3609 #endif 3610 3611 oldState = State; 3612 State = CONFIRM; 3613 #ifdef FEAT_MOUSE 3614 setmouse(); 3615 #endif 3616 3617 /* 3618 * Since we wait for a keypress, don't make the 3619 * user press RETURN as well afterwards. 3620 */ 3621 ++no_wait_return; 3622 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3623 3624 if (hotkeys != NULL) 3625 { 3626 for (;;) 3627 { 3628 /* Get a typed character directly from the user. */ 3629 c = get_keystroke(); 3630 switch (c) 3631 { 3632 case CAR: /* User accepts default option */ 3633 case NL: 3634 retval = dfltbutton; 3635 break; 3636 case Ctrl_C: /* User aborts/cancels */ 3637 case ESC: 3638 retval = 0; 3639 break; 3640 default: /* Could be a hotkey? */ 3641 if (c < 0) /* special keys are ignored here */ 3642 continue; 3643 if (c == ':' && ex_cmd) 3644 { 3645 retval = dfltbutton; 3646 ins_char_typebuf(':'); 3647 break; 3648 } 3649 3650 /* Make the character lowercase, as chars in "hotkeys" are. */ 3651 c = MB_TOLOWER(c); 3652 retval = 1; 3653 for (i = 0; hotkeys[i]; ++i) 3654 { 3655 #ifdef FEAT_MBYTE 3656 if (has_mbyte) 3657 { 3658 if ((*mb_ptr2char)(hotkeys + i) == c) 3659 break; 3660 i += (*mb_ptr2len)(hotkeys + i) - 1; 3661 } 3662 else 3663 #endif 3664 if (hotkeys[i] == c) 3665 break; 3666 ++retval; 3667 } 3668 if (hotkeys[i]) 3669 break; 3670 /* No hotkey match, so keep waiting */ 3671 continue; 3672 } 3673 break; 3674 } 3675 3676 vim_free(hotkeys); 3677 } 3678 3679 State = oldState; 3680 #ifdef FEAT_MOUSE 3681 setmouse(); 3682 #endif 3683 --no_wait_return; 3684 msg_end_prompt(); 3685 3686 return retval; 3687 } 3688 3689 static int copy_char(char_u *from, char_u *to, int lowercase); 3690 3691 /* 3692 * Copy one character from "*from" to "*to", taking care of multi-byte 3693 * characters. Return the length of the character in bytes. 3694 */ 3695 static int 3696 copy_char( 3697 char_u *from, 3698 char_u *to, 3699 int lowercase) /* make character lower case */ 3700 { 3701 #ifdef FEAT_MBYTE 3702 int len; 3703 int c; 3704 3705 if (has_mbyte) 3706 { 3707 if (lowercase) 3708 { 3709 c = MB_TOLOWER((*mb_ptr2char)(from)); 3710 return (*mb_char2bytes)(c, to); 3711 } 3712 else 3713 { 3714 len = (*mb_ptr2len)(from); 3715 mch_memmove(to, from, (size_t)len); 3716 return len; 3717 } 3718 } 3719 else 3720 #endif 3721 { 3722 if (lowercase) 3723 *to = (char_u)TOLOWER_LOC(*from); 3724 else 3725 *to = *from; 3726 return 1; 3727 } 3728 } 3729 3730 /* 3731 * Format the dialog string, and display it at the bottom of 3732 * the screen. Return a string of hotkey chars (if defined) for 3733 * each 'button'. If a button has no hotkey defined, the first character of 3734 * the button is used. 3735 * The hotkeys can be multi-byte characters, but without combining chars. 3736 * 3737 * Returns an allocated string with hotkeys, or NULL for error. 3738 */ 3739 static char_u * 3740 msg_show_console_dialog( 3741 char_u *message, 3742 char_u *buttons, 3743 int dfltbutton) 3744 { 3745 int len = 0; 3746 #ifdef FEAT_MBYTE 3747 # define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3748 #else 3749 # define HOTK_LEN 1 3750 #endif 3751 int lenhotkey = HOTK_LEN; /* count first button */ 3752 char_u *hotk = NULL; 3753 char_u *msgp = NULL; 3754 char_u *hotkp = NULL; 3755 char_u *r; 3756 int copy; 3757 #define HAS_HOTKEY_LEN 30 3758 char_u has_hotkey[HAS_HOTKEY_LEN]; 3759 int first_hotkey = FALSE; /* first char of button is hotkey */ 3760 int idx; 3761 3762 has_hotkey[0] = FALSE; 3763 3764 /* 3765 * First loop: compute the size of memory to allocate. 3766 * Second loop: copy to the allocated memory. 3767 */ 3768 for (copy = 0; copy <= 1; ++copy) 3769 { 3770 r = buttons; 3771 idx = 0; 3772 while (*r) 3773 { 3774 if (*r == DLG_BUTTON_SEP) 3775 { 3776 if (copy) 3777 { 3778 *msgp++ = ','; 3779 *msgp++ = ' '; /* '\n' -> ', ' */ 3780 3781 /* advance to next hotkey and set default hotkey */ 3782 #ifdef FEAT_MBYTE 3783 if (has_mbyte) 3784 hotkp += STRLEN(hotkp); 3785 else 3786 #endif 3787 ++hotkp; 3788 hotkp[copy_char(r + 1, hotkp, TRUE)] = NUL; 3789 if (dfltbutton) 3790 --dfltbutton; 3791 3792 /* If no hotkey is specified first char is used. */ 3793 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3794 first_hotkey = TRUE; 3795 } 3796 else 3797 { 3798 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3799 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3800 if (idx < HAS_HOTKEY_LEN - 1) 3801 has_hotkey[++idx] = FALSE; 3802 } 3803 } 3804 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3805 { 3806 if (*r == DLG_HOTKEY_CHAR) 3807 ++r; 3808 first_hotkey = FALSE; 3809 if (copy) 3810 { 3811 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3812 *msgp++ = *r; 3813 else 3814 { 3815 /* '&a' -> '[a]' */ 3816 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3817 msgp += copy_char(r, msgp, FALSE); 3818 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3819 3820 /* redefine hotkey */ 3821 hotkp[copy_char(r, hotkp, TRUE)] = NUL; 3822 } 3823 } 3824 else 3825 { 3826 ++len; /* '&a' -> '[a]' */ 3827 if (idx < HAS_HOTKEY_LEN - 1) 3828 has_hotkey[idx] = TRUE; 3829 } 3830 } 3831 else 3832 { 3833 /* everything else copy literally */ 3834 if (copy) 3835 msgp += copy_char(r, msgp, FALSE); 3836 } 3837 3838 /* advance to the next character */ 3839 MB_PTR_ADV(r); 3840 } 3841 3842 if (copy) 3843 { 3844 *msgp++ = ':'; 3845 *msgp++ = ' '; 3846 *msgp = NUL; 3847 } 3848 else 3849 { 3850 len += (int)(STRLEN(message) 3851 + 2 /* for the NL's */ 3852 + STRLEN(buttons) 3853 + 3); /* for the ": " and NUL */ 3854 lenhotkey++; /* for the NUL */ 3855 3856 /* If no hotkey is specified first char is used. */ 3857 if (!has_hotkey[0]) 3858 { 3859 first_hotkey = TRUE; 3860 len += 2; /* "x" -> "[x]" */ 3861 } 3862 3863 /* 3864 * Now allocate and load the strings 3865 */ 3866 vim_free(confirm_msg); 3867 confirm_msg = alloc(len); 3868 if (confirm_msg == NULL) 3869 return NULL; 3870 *confirm_msg = NUL; 3871 hotk = alloc(lenhotkey); 3872 if (hotk == NULL) 3873 return NULL; 3874 3875 *confirm_msg = '\n'; 3876 STRCPY(confirm_msg + 1, message); 3877 3878 msgp = confirm_msg + 1 + STRLEN(message); 3879 hotkp = hotk; 3880 3881 /* Define first default hotkey. Keep the hotkey string NUL 3882 * terminated to avoid reading past the end. */ 3883 hotkp[copy_char(buttons, hotkp, TRUE)] = NUL; 3884 3885 /* Remember where the choices start, displaying starts here when 3886 * "hotkp" typed at the more prompt. */ 3887 confirm_msg_tail = msgp; 3888 *msgp++ = '\n'; 3889 } 3890 } 3891 3892 display_confirm_msg(); 3893 return hotk; 3894 } 3895 3896 /* 3897 * Display the ":confirm" message. Also called when screen resized. 3898 */ 3899 void 3900 display_confirm_msg(void) 3901 { 3902 /* avoid that 'q' at the more prompt truncates the message here */ 3903 ++confirm_msg_used; 3904 if (confirm_msg != NULL) 3905 msg_puts_attr(confirm_msg, HL_ATTR(HLF_M)); 3906 --confirm_msg_used; 3907 } 3908 3909 #endif /* FEAT_CON_DIALOG */ 3910 3911 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3912 3913 int 3914 vim_dialog_yesno( 3915 int type, 3916 char_u *title, 3917 char_u *message, 3918 int dflt) 3919 { 3920 if (do_dialog(type, 3921 title == NULL ? (char_u *)_("Question") : title, 3922 message, 3923 (char_u *)_("&Yes\n&No"), dflt, NULL, FALSE) == 1) 3924 return VIM_YES; 3925 return VIM_NO; 3926 } 3927 3928 int 3929 vim_dialog_yesnocancel( 3930 int type, 3931 char_u *title, 3932 char_u *message, 3933 int dflt) 3934 { 3935 switch (do_dialog(type, 3936 title == NULL ? (char_u *)_("Question") : title, 3937 message, 3938 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL, FALSE)) 3939 { 3940 case 1: return VIM_YES; 3941 case 2: return VIM_NO; 3942 } 3943 return VIM_CANCEL; 3944 } 3945 3946 int 3947 vim_dialog_yesnoallcancel( 3948 int type, 3949 char_u *title, 3950 char_u *message, 3951 int dflt) 3952 { 3953 switch (do_dialog(type, 3954 title == NULL ? (char_u *)"Question" : title, 3955 message, 3956 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3957 dflt, NULL, FALSE)) 3958 { 3959 case 1: return VIM_YES; 3960 case 2: return VIM_NO; 3961 case 3: return VIM_ALL; 3962 case 4: return VIM_DISCARDALL; 3963 } 3964 return VIM_CANCEL; 3965 } 3966 3967 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3968 3969 #if defined(FEAT_BROWSE) || defined(PROTO) 3970 /* 3971 * Generic browse function. Calls gui_mch_browse() when possible. 3972 * Later this may pop-up a non-GUI file selector (external command?). 3973 */ 3974 char_u * 3975 do_browse( 3976 int flags, /* BROWSE_SAVE and BROWSE_DIR */ 3977 char_u *title, /* title for the window */ 3978 char_u *dflt, /* default file name (may include directory) */ 3979 char_u *ext, /* extension added */ 3980 char_u *initdir, /* initial directory, NULL for current dir or 3981 when using path from "dflt" */ 3982 char_u *filter, /* file name filter */ 3983 buf_T *buf) /* buffer to read/write for */ 3984 { 3985 char_u *fname; 3986 static char_u *last_dir = NULL; /* last used directory */ 3987 char_u *tofree = NULL; 3988 int save_browse = cmdmod.browse; 3989 3990 /* Must turn off browse to avoid that autocommands will get the 3991 * flag too! */ 3992 cmdmod.browse = FALSE; 3993 3994 if (title == NULL || *title == NUL) 3995 { 3996 if (flags & BROWSE_DIR) 3997 title = (char_u *)_("Select Directory dialog"); 3998 else if (flags & BROWSE_SAVE) 3999 title = (char_u *)_("Save File dialog"); 4000 else 4001 title = (char_u *)_("Open File dialog"); 4002 } 4003 4004 /* When no directory specified, use default file name, default dir, buffer 4005 * dir, last dir or current dir */ 4006 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 4007 { 4008 if (mch_isdir(dflt)) /* default file name is a directory */ 4009 { 4010 initdir = dflt; 4011 dflt = NULL; 4012 } 4013 else if (gettail(dflt) != dflt) /* default file name includes a path */ 4014 { 4015 tofree = vim_strsave(dflt); 4016 if (tofree != NULL) 4017 { 4018 initdir = tofree; 4019 *gettail(initdir) = NUL; 4020 dflt = gettail(dflt); 4021 } 4022 } 4023 } 4024 4025 if (initdir == NULL || *initdir == NUL) 4026 { 4027 /* When 'browsedir' is a directory, use it */ 4028 if (STRCMP(p_bsdir, "last") != 0 4029 && STRCMP(p_bsdir, "buffer") != 0 4030 && STRCMP(p_bsdir, "current") != 0 4031 && mch_isdir(p_bsdir)) 4032 initdir = p_bsdir; 4033 /* When saving or 'browsedir' is "buffer", use buffer fname */ 4034 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 4035 && buf != NULL && buf->b_ffname != NULL) 4036 { 4037 if (dflt == NULL || *dflt == NUL) 4038 dflt = gettail(curbuf->b_ffname); 4039 tofree = vim_strsave(curbuf->b_ffname); 4040 if (tofree != NULL) 4041 { 4042 initdir = tofree; 4043 *gettail(initdir) = NUL; 4044 } 4045 } 4046 /* When 'browsedir' is "last", use dir from last browse */ 4047 else if (*p_bsdir == 'l') 4048 initdir = last_dir; 4049 /* When 'browsedir is "current", use current directory. This is the 4050 * default already, leave initdir empty. */ 4051 } 4052 4053 # ifdef FEAT_GUI 4054 if (gui.in_use) /* when this changes, also adjust f_has()! */ 4055 { 4056 if (filter == NULL 4057 # ifdef FEAT_EVAL 4058 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 4059 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 4060 # endif 4061 ) 4062 filter = BROWSE_FILTER_DEFAULT; 4063 if (flags & BROWSE_DIR) 4064 { 4065 # if defined(FEAT_GUI_GTK) || defined(WIN3264) 4066 /* For systems that have a directory dialog. */ 4067 fname = gui_mch_browsedir(title, initdir); 4068 # else 4069 /* Generic solution for selecting a directory: select a file and 4070 * remove the file name. */ 4071 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 4072 # endif 4073 # if !defined(FEAT_GUI_GTK) 4074 /* Win32 adds a dummy file name, others return an arbitrary file 4075 * name. GTK+ 2 returns only the directory, */ 4076 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 4077 { 4078 /* Remove the file name. */ 4079 char_u *tail = gettail_sep(fname); 4080 4081 if (tail == fname) 4082 *tail++ = '.'; /* use current dir */ 4083 *tail = NUL; 4084 } 4085 # endif 4086 } 4087 else 4088 fname = gui_mch_browse(flags & BROWSE_SAVE, 4089 title, dflt, ext, initdir, (char_u *)_(filter)); 4090 4091 /* We hang around in the dialog for a while, the user might do some 4092 * things to our files. The Win32 dialog allows deleting or renaming 4093 * a file, check timestamps. */ 4094 need_check_timestamps = TRUE; 4095 did_check_timestamps = FALSE; 4096 } 4097 else 4098 # endif 4099 { 4100 /* TODO: non-GUI file selector here */ 4101 EMSG(_("E338: Sorry, no file browser in console mode")); 4102 fname = NULL; 4103 } 4104 4105 /* keep the directory for next time */ 4106 if (fname != NULL) 4107 { 4108 vim_free(last_dir); 4109 last_dir = vim_strsave(fname); 4110 if (last_dir != NULL && !(flags & BROWSE_DIR)) 4111 { 4112 *gettail(last_dir) = NUL; 4113 if (*last_dir == NUL) 4114 { 4115 /* filename only returned, must be in current dir */ 4116 vim_free(last_dir); 4117 last_dir = alloc(MAXPATHL); 4118 if (last_dir != NULL) 4119 mch_dirname(last_dir, MAXPATHL); 4120 } 4121 } 4122 } 4123 4124 vim_free(tofree); 4125 cmdmod.browse = save_browse; 4126 4127 return fname; 4128 } 4129 #endif 4130 4131 #if defined(FEAT_EVAL) 4132 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 4133 4134 static varnumber_T tv_nr(typval_T *tvs, int *idxp); 4135 static char *tv_str(typval_T *tvs, int *idxp, char_u **tofree); 4136 # ifdef FEAT_FLOAT 4137 static double tv_float(typval_T *tvs, int *idxp); 4138 # endif 4139 4140 /* 4141 * Get number argument from "idxp" entry in "tvs". First entry is 1. 4142 */ 4143 static varnumber_T 4144 tv_nr(typval_T *tvs, int *idxp) 4145 { 4146 int idx = *idxp - 1; 4147 varnumber_T n = 0; 4148 int err = FALSE; 4149 4150 if (tvs[idx].v_type == VAR_UNKNOWN) 4151 EMSG(_(e_printf)); 4152 else 4153 { 4154 ++*idxp; 4155 n = get_tv_number_chk(&tvs[idx], &err); 4156 if (err) 4157 n = 0; 4158 } 4159 return n; 4160 } 4161 4162 /* 4163 * Get string argument from "idxp" entry in "tvs". First entry is 1. 4164 * If "tofree" is NULL get_tv_string_chk() is used. Some types (e.g. List) 4165 * are not converted to a string. 4166 * If "tofree" is not NULL echo_string() is used. All types are converted to 4167 * a string with the same format as ":echo". The caller must free "*tofree". 4168 * Returns NULL for an error. 4169 */ 4170 static char * 4171 tv_str(typval_T *tvs, int *idxp, char_u **tofree) 4172 { 4173 int idx = *idxp - 1; 4174 char *s = NULL; 4175 static char_u numbuf[NUMBUFLEN]; 4176 4177 if (tvs[idx].v_type == VAR_UNKNOWN) 4178 EMSG(_(e_printf)); 4179 else 4180 { 4181 ++*idxp; 4182 if (tofree != NULL) 4183 s = (char *)echo_string(&tvs[idx], tofree, numbuf, get_copyID()); 4184 else 4185 s = (char *)get_tv_string_chk(&tvs[idx]); 4186 } 4187 return s; 4188 } 4189 4190 # ifdef FEAT_FLOAT 4191 /* 4192 * Get float argument from "idxp" entry in "tvs". First entry is 1. 4193 */ 4194 static double 4195 tv_float(typval_T *tvs, int *idxp) 4196 { 4197 int idx = *idxp - 1; 4198 double f = 0; 4199 4200 if (tvs[idx].v_type == VAR_UNKNOWN) 4201 EMSG(_(e_printf)); 4202 else 4203 { 4204 ++*idxp; 4205 if (tvs[idx].v_type == VAR_FLOAT) 4206 f = tvs[idx].vval.v_float; 4207 else if (tvs[idx].v_type == VAR_NUMBER) 4208 f = (double)tvs[idx].vval.v_number; 4209 else 4210 EMSG(_("E807: Expected Float argument for printf()")); 4211 } 4212 return f; 4213 } 4214 # endif 4215 #endif 4216 4217 #ifdef FEAT_FLOAT 4218 /* 4219 * Return the representation of infinity for printf() function: 4220 * "-inf", "inf", "+inf", " inf", "-INF", "INF", "+INF" or " INF". 4221 */ 4222 static const char * 4223 infinity_str(int positive, 4224 char fmt_spec, 4225 int force_sign, 4226 int space_for_positive) 4227 { 4228 static const char *table[] = 4229 { 4230 "-inf", "inf", "+inf", " inf", 4231 "-INF", "INF", "+INF", " INF" 4232 }; 4233 int idx = positive * (1 + force_sign + force_sign * space_for_positive); 4234 4235 if (ASCII_ISUPPER(fmt_spec)) 4236 idx += 4; 4237 return table[idx]; 4238 } 4239 #endif 4240 4241 /* 4242 * This code was included to provide a portable vsnprintf() and snprintf(). 4243 * Some systems may provide their own, but we always use this one for 4244 * consistency. 4245 * 4246 * This code is based on snprintf.c - a portable implementation of snprintf 4247 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 4248 * Included with permission. It was heavily modified to fit in Vim. 4249 * The original code, including useful comments, can be found here: 4250 * http://www.ijs.si/software/snprintf/ 4251 * 4252 * This snprintf() only supports the following conversion specifiers: 4253 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 4254 * with flags: '-', '+', ' ', '0' and '#'. 4255 * An asterisk is supported for field width as well as precision. 4256 * 4257 * Limited support for floating point was added: 'f', 'F', 'e', 'E', 'g', 'G'. 4258 * 4259 * Length modifiers 'h' (short int) and 'l' (long int) and 'll' (long long int) 4260 * are supported. 4261 * 4262 * The locale is not used, the string is used as a byte string. This is only 4263 * relevant for double-byte encodings where the second byte may be '%'. 4264 * 4265 * It is permitted for "str_m" to be zero, and it is permitted to specify NULL 4266 * pointer for resulting string argument if "str_m" is zero (as per ISO C99). 4267 * 4268 * The return value is the number of characters which would be generated 4269 * for the given input, excluding the trailing NUL. If this value 4270 * is greater or equal to "str_m", not all characters from the result 4271 * have been stored in str, output bytes beyond the ("str_m"-1) -th character 4272 * are discarded. If "str_m" is greater than zero it is guaranteed 4273 * the resulting string will be NUL-terminated. 4274 */ 4275 4276 /* 4277 * When va_list is not supported we only define vim_snprintf(). 4278 * 4279 * vim_vsnprintf_typval() can be invoked with either "va_list" or a list of 4280 * "typval_T". When the latter is not used it must be NULL. 4281 */ 4282 4283 /* When generating prototypes all of this is skipped, cproto doesn't 4284 * understand this. */ 4285 #ifndef PROTO 4286 4287 /* Like vim_vsnprintf() but append to the string. */ 4288 int 4289 vim_snprintf_add(char *str, size_t str_m, char *fmt, ...) 4290 { 4291 va_list ap; 4292 int str_l; 4293 size_t len = STRLEN(str); 4294 size_t space; 4295 4296 if (str_m <= len) 4297 space = 0; 4298 else 4299 space = str_m - len; 4300 va_start(ap, fmt); 4301 str_l = vim_vsnprintf(str + len, space, fmt, ap); 4302 va_end(ap); 4303 return str_l; 4304 } 4305 4306 int 4307 vim_snprintf(char *str, size_t str_m, char *fmt, ...) 4308 { 4309 va_list ap; 4310 int str_l; 4311 4312 va_start(ap, fmt); 4313 str_l = vim_vsnprintf(str, str_m, fmt, ap); 4314 va_end(ap); 4315 return str_l; 4316 } 4317 4318 int 4319 vim_vsnprintf( 4320 char *str, 4321 size_t str_m, 4322 char *fmt, 4323 va_list ap) 4324 { 4325 return vim_vsnprintf_typval(str, str_m, fmt, ap, NULL); 4326 } 4327 4328 int 4329 vim_vsnprintf_typval( 4330 char *str, 4331 size_t str_m, 4332 char *fmt, 4333 va_list ap, 4334 typval_T *tvs) 4335 { 4336 size_t str_l = 0; 4337 char *p = fmt; 4338 int arg_idx = 1; 4339 4340 if (p == NULL) 4341 p = ""; 4342 while (*p != NUL) 4343 { 4344 if (*p != '%') 4345 { 4346 char *q = strchr(p + 1, '%'); 4347 size_t n = (q == NULL) ? STRLEN(p) : (size_t)(q - p); 4348 4349 /* Copy up to the next '%' or NUL without any changes. */ 4350 if (str_l < str_m) 4351 { 4352 size_t avail = str_m - str_l; 4353 4354 mch_memmove(str + str_l, p, n > avail ? avail : n); 4355 } 4356 p += n; 4357 str_l += n; 4358 } 4359 else 4360 { 4361 size_t min_field_width = 0, precision = 0; 4362 int zero_padding = 0, precision_specified = 0, justify_left = 0; 4363 int alternate_form = 0, force_sign = 0; 4364 4365 /* If both the ' ' and '+' flags appear, the ' ' flag should be 4366 * ignored. */ 4367 int space_for_positive = 1; 4368 4369 /* allowed values: \0, h, l, L */ 4370 char length_modifier = '\0'; 4371 4372 /* temporary buffer for simple numeric->string conversion */ 4373 # if defined(FEAT_FLOAT) 4374 # define TMP_LEN 350 /* On my system 1e308 is the biggest number possible. 4375 * That sounds reasonable to use as the maximum 4376 * printable. */ 4377 # elif defined(FEAT_NUM64) 4378 # define TMP_LEN 66 4379 # else 4380 # define TMP_LEN 34 4381 # endif 4382 char tmp[TMP_LEN]; 4383 4384 /* string address in case of string argument */ 4385 char *str_arg; 4386 4387 /* natural field width of arg without padding and sign */ 4388 size_t str_arg_l; 4389 4390 /* unsigned char argument value - only defined for c conversion. 4391 * N.B. standard explicitly states the char argument for the c 4392 * conversion is unsigned */ 4393 unsigned char uchar_arg; 4394 4395 /* number of zeros to be inserted for numeric conversions as 4396 * required by the precision or minimal field width */ 4397 size_t number_of_zeros_to_pad = 0; 4398 4399 /* index into tmp where zero padding is to be inserted */ 4400 size_t zero_padding_insertion_ind = 0; 4401 4402 /* current conversion specifier character */ 4403 char fmt_spec = '\0'; 4404 4405 /* buffer for 's' and 'S' specs */ 4406 char_u *tofree = NULL; 4407 4408 4409 str_arg = NULL; 4410 p++; /* skip '%' */ 4411 4412 /* parse flags */ 4413 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 4414 || *p == '#' || *p == '\'') 4415 { 4416 switch (*p) 4417 { 4418 case '0': zero_padding = 1; break; 4419 case '-': justify_left = 1; break; 4420 case '+': force_sign = 1; space_for_positive = 0; break; 4421 case ' ': force_sign = 1; 4422 /* If both the ' ' and '+' flags appear, the ' ' 4423 * flag should be ignored */ 4424 break; 4425 case '#': alternate_form = 1; break; 4426 case '\'': break; 4427 } 4428 p++; 4429 } 4430 /* If the '0' and '-' flags both appear, the '0' flag should be 4431 * ignored. */ 4432 4433 /* parse field width */ 4434 if (*p == '*') 4435 { 4436 int j; 4437 4438 p++; 4439 j = 4440 # if defined(FEAT_EVAL) 4441 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4442 # endif 4443 va_arg(ap, int); 4444 if (j >= 0) 4445 min_field_width = j; 4446 else 4447 { 4448 min_field_width = -j; 4449 justify_left = 1; 4450 } 4451 } 4452 else if (VIM_ISDIGIT((int)(*p))) 4453 { 4454 /* size_t could be wider than unsigned int; make sure we treat 4455 * argument like common implementations do */ 4456 unsigned int uj = *p++ - '0'; 4457 4458 while (VIM_ISDIGIT((int)(*p))) 4459 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4460 min_field_width = uj; 4461 } 4462 4463 /* parse precision */ 4464 if (*p == '.') 4465 { 4466 p++; 4467 precision_specified = 1; 4468 if (*p == '*') 4469 { 4470 int j; 4471 4472 j = 4473 # if defined(FEAT_EVAL) 4474 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4475 # endif 4476 va_arg(ap, int); 4477 p++; 4478 if (j >= 0) 4479 precision = j; 4480 else 4481 { 4482 precision_specified = 0; 4483 precision = 0; 4484 } 4485 } 4486 else if (VIM_ISDIGIT((int)(*p))) 4487 { 4488 /* size_t could be wider than unsigned int; make sure we 4489 * treat argument like common implementations do */ 4490 unsigned int uj = *p++ - '0'; 4491 4492 while (VIM_ISDIGIT((int)(*p))) 4493 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4494 precision = uj; 4495 } 4496 } 4497 4498 /* parse 'h', 'l' and 'll' length modifiers */ 4499 if (*p == 'h' || *p == 'l') 4500 { 4501 length_modifier = *p; 4502 p++; 4503 if (length_modifier == 'l' && *p == 'l') 4504 { 4505 /* double l = long long */ 4506 # ifdef FEAT_NUM64 4507 length_modifier = 'L'; 4508 # else 4509 length_modifier = 'l'; /* treat it as a single 'l' */ 4510 # endif 4511 p++; 4512 } 4513 } 4514 fmt_spec = *p; 4515 4516 /* common synonyms: */ 4517 switch (fmt_spec) 4518 { 4519 case 'i': fmt_spec = 'd'; break; 4520 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4521 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4522 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4523 default: break; 4524 } 4525 4526 # if defined(FEAT_EVAL) && defined(FEAT_NUM64) 4527 switch (fmt_spec) 4528 { 4529 case 'd': case 'u': case 'o': case 'x': case 'X': 4530 if (tvs != NULL && length_modifier == '\0') 4531 length_modifier = 'L'; 4532 } 4533 # endif 4534 4535 /* get parameter value, do initial processing */ 4536 switch (fmt_spec) 4537 { 4538 /* '%' and 'c' behave similar to 's' regarding flags and field 4539 * widths */ 4540 case '%': 4541 case 'c': 4542 case 's': 4543 case 'S': 4544 length_modifier = '\0'; 4545 str_arg_l = 1; 4546 switch (fmt_spec) 4547 { 4548 case '%': 4549 str_arg = p; 4550 break; 4551 4552 case 'c': 4553 { 4554 int j; 4555 4556 j = 4557 # if defined(FEAT_EVAL) 4558 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4559 # endif 4560 va_arg(ap, int); 4561 /* standard demands unsigned char */ 4562 uchar_arg = (unsigned char)j; 4563 str_arg = (char *)&uchar_arg; 4564 break; 4565 } 4566 4567 case 's': 4568 case 'S': 4569 str_arg = 4570 # if defined(FEAT_EVAL) 4571 tvs != NULL ? tv_str(tvs, &arg_idx, &tofree) : 4572 # endif 4573 va_arg(ap, char *); 4574 if (str_arg == NULL) 4575 { 4576 str_arg = "[NULL]"; 4577 str_arg_l = 6; 4578 } 4579 /* make sure not to address string beyond the specified 4580 * precision !!! */ 4581 else if (!precision_specified) 4582 str_arg_l = strlen(str_arg); 4583 /* truncate string if necessary as requested by precision */ 4584 else if (precision == 0) 4585 str_arg_l = 0; 4586 else 4587 { 4588 /* Don't put the #if inside memchr(), it can be a 4589 * macro. */ 4590 # if VIM_SIZEOF_INT <= 2 4591 char *q = memchr(str_arg, '\0', precision); 4592 # else 4593 /* memchr on HP does not like n > 2^31 !!! */ 4594 char *q = memchr(str_arg, '\0', 4595 precision <= (size_t)0x7fffffffL ? precision 4596 : (size_t)0x7fffffffL); 4597 # endif 4598 str_arg_l = (q == NULL) ? precision 4599 : (size_t)(q - str_arg); 4600 } 4601 # ifdef FEAT_MBYTE 4602 if (fmt_spec == 'S') 4603 { 4604 if (min_field_width != 0) 4605 min_field_width += STRLEN(str_arg) 4606 - mb_string2cells((char_u *)str_arg, -1); 4607 if (precision) 4608 { 4609 char_u *p1 = (char_u *)str_arg; 4610 size_t i; 4611 4612 for (i = 0; i < precision && *p1; i++) 4613 p1 += mb_ptr2len(p1); 4614 4615 str_arg_l = precision = p1 - (char_u *)str_arg; 4616 } 4617 } 4618 # endif 4619 break; 4620 4621 default: 4622 break; 4623 } 4624 break; 4625 4626 case 'd': case 'u': 4627 case 'b': case 'B': 4628 case 'o': 4629 case 'x': case 'X': 4630 case 'p': 4631 { 4632 /* NOTE: the u, b, o, x, X and p conversion specifiers 4633 * imply the value is unsigned; d implies a signed 4634 * value */ 4635 4636 /* 0 if numeric argument is zero (or if pointer is 4637 * NULL for 'p'), +1 if greater than zero (or nonzero 4638 * for unsigned arguments), -1 if negative (unsigned 4639 * argument is never negative) */ 4640 int arg_sign = 0; 4641 4642 /* only defined for length modifier h, or for no 4643 * length modifiers */ 4644 int int_arg = 0; 4645 unsigned int uint_arg = 0; 4646 4647 /* only defined for length modifier l */ 4648 long int long_arg = 0; 4649 unsigned long int ulong_arg = 0; 4650 4651 # ifdef FEAT_NUM64 4652 /* only defined for length modifier ll */ 4653 varnumber_T llong_arg = 0; 4654 uvarnumber_T ullong_arg = 0; 4655 # endif 4656 4657 /* only defined for b conversion */ 4658 uvarnumber_T bin_arg = 0; 4659 4660 /* pointer argument value -only defined for p 4661 * conversion */ 4662 void *ptr_arg = NULL; 4663 4664 if (fmt_spec == 'p') 4665 { 4666 length_modifier = '\0'; 4667 ptr_arg = 4668 # if defined(FEAT_EVAL) 4669 tvs != NULL ? (void *)tv_str(tvs, &arg_idx, 4670 NULL) : 4671 # endif 4672 va_arg(ap, void *); 4673 if (ptr_arg != NULL) 4674 arg_sign = 1; 4675 } 4676 else if (fmt_spec == 'b' || fmt_spec == 'B') 4677 { 4678 bin_arg = 4679 # if defined(FEAT_EVAL) 4680 tvs != NULL ? 4681 (uvarnumber_T)tv_nr(tvs, &arg_idx) : 4682 # endif 4683 va_arg(ap, uvarnumber_T); 4684 if (bin_arg != 0) 4685 arg_sign = 1; 4686 } 4687 else if (fmt_spec == 'd') 4688 { 4689 /* signed */ 4690 switch (length_modifier) 4691 { 4692 case '\0': 4693 case 'h': 4694 /* char and short arguments are passed as int. */ 4695 int_arg = 4696 # if defined(FEAT_EVAL) 4697 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4698 # endif 4699 va_arg(ap, int); 4700 if (int_arg > 0) 4701 arg_sign = 1; 4702 else if (int_arg < 0) 4703 arg_sign = -1; 4704 break; 4705 case 'l': 4706 long_arg = 4707 # if defined(FEAT_EVAL) 4708 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4709 # endif 4710 va_arg(ap, long int); 4711 if (long_arg > 0) 4712 arg_sign = 1; 4713 else if (long_arg < 0) 4714 arg_sign = -1; 4715 break; 4716 # ifdef FEAT_NUM64 4717 case 'L': 4718 llong_arg = 4719 # if defined(FEAT_EVAL) 4720 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4721 # endif 4722 va_arg(ap, varnumber_T); 4723 if (llong_arg > 0) 4724 arg_sign = 1; 4725 else if (llong_arg < 0) 4726 arg_sign = -1; 4727 break; 4728 # endif 4729 } 4730 } 4731 else 4732 { 4733 /* unsigned */ 4734 switch (length_modifier) 4735 { 4736 case '\0': 4737 case 'h': 4738 uint_arg = 4739 # if defined(FEAT_EVAL) 4740 tvs != NULL ? (unsigned) 4741 tv_nr(tvs, &arg_idx) : 4742 # endif 4743 va_arg(ap, unsigned int); 4744 if (uint_arg != 0) 4745 arg_sign = 1; 4746 break; 4747 case 'l': 4748 ulong_arg = 4749 # if defined(FEAT_EVAL) 4750 tvs != NULL ? (unsigned long) 4751 tv_nr(tvs, &arg_idx) : 4752 # endif 4753 va_arg(ap, unsigned long int); 4754 if (ulong_arg != 0) 4755 arg_sign = 1; 4756 break; 4757 # ifdef FEAT_NUM64 4758 case 'L': 4759 ullong_arg = 4760 # if defined(FEAT_EVAL) 4761 tvs != NULL ? (uvarnumber_T) 4762 tv_nr(tvs, &arg_idx) : 4763 # endif 4764 va_arg(ap, uvarnumber_T); 4765 if (ullong_arg != 0) 4766 arg_sign = 1; 4767 break; 4768 # endif 4769 } 4770 } 4771 4772 str_arg = tmp; 4773 str_arg_l = 0; 4774 4775 /* NOTE: 4776 * For d, i, u, o, x, and X conversions, if precision is 4777 * specified, the '0' flag should be ignored. This is so 4778 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4779 * FreeBSD, NetBSD; but not with Perl. 4780 */ 4781 if (precision_specified) 4782 zero_padding = 0; 4783 if (fmt_spec == 'd') 4784 { 4785 if (force_sign && arg_sign >= 0) 4786 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4787 /* leave negative numbers for sprintf to handle, to 4788 * avoid handling tricky cases like (short int)-32768 */ 4789 } 4790 else if (alternate_form) 4791 { 4792 if (arg_sign != 0 4793 && (fmt_spec == 'b' || fmt_spec == 'B' 4794 || fmt_spec == 'x' || fmt_spec == 'X') ) 4795 { 4796 tmp[str_arg_l++] = '0'; 4797 tmp[str_arg_l++] = fmt_spec; 4798 } 4799 /* alternate form should have no effect for p 4800 * conversion, but ... */ 4801 } 4802 4803 zero_padding_insertion_ind = str_arg_l; 4804 if (!precision_specified) 4805 precision = 1; /* default precision is 1 */ 4806 if (precision == 0 && arg_sign == 0) 4807 { 4808 /* When zero value is formatted with an explicit 4809 * precision 0, the resulting formatted string is 4810 * empty (d, i, u, b, B, o, x, X, p). */ 4811 } 4812 else 4813 { 4814 char f[6]; 4815 int f_l = 0; 4816 4817 /* construct a simple format string for sprintf */ 4818 f[f_l++] = '%'; 4819 if (!length_modifier) 4820 ; 4821 else if (length_modifier == 'L') 4822 { 4823 # ifdef FEAT_NUM64 4824 # ifdef WIN3264 4825 f[f_l++] = 'I'; 4826 f[f_l++] = '6'; 4827 f[f_l++] = '4'; 4828 # else 4829 f[f_l++] = 'l'; 4830 f[f_l++] = 'l'; 4831 # endif 4832 # else 4833 f[f_l++] = 'l'; 4834 # endif 4835 } 4836 else 4837 f[f_l++] = length_modifier; 4838 f[f_l++] = fmt_spec; 4839 f[f_l++] = '\0'; 4840 4841 if (fmt_spec == 'p') 4842 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4843 else if (fmt_spec == 'b' || fmt_spec == 'B') 4844 { 4845 char b[8 * sizeof(uvarnumber_T)]; 4846 size_t b_l = 0; 4847 uvarnumber_T bn = bin_arg; 4848 4849 do 4850 { 4851 b[sizeof(b) - ++b_l] = '0' + (bn & 0x1); 4852 bn >>= 1; 4853 } 4854 while (bn != 0); 4855 4856 memcpy(tmp + str_arg_l, b + sizeof(b) - b_l, b_l); 4857 str_arg_l += b_l; 4858 } 4859 else if (fmt_spec == 'd') 4860 { 4861 /* signed */ 4862 switch (length_modifier) 4863 { 4864 case '\0': 4865 case 'h': str_arg_l += sprintf( 4866 tmp + str_arg_l, f, int_arg); 4867 break; 4868 case 'l': str_arg_l += sprintf( 4869 tmp + str_arg_l, f, long_arg); 4870 break; 4871 # ifdef FEAT_NUM64 4872 case 'L': str_arg_l += sprintf( 4873 tmp + str_arg_l, f, llong_arg); 4874 break; 4875 # endif 4876 } 4877 } 4878 else 4879 { 4880 /* unsigned */ 4881 switch (length_modifier) 4882 { 4883 case '\0': 4884 case 'h': str_arg_l += sprintf( 4885 tmp + str_arg_l, f, uint_arg); 4886 break; 4887 case 'l': str_arg_l += sprintf( 4888 tmp + str_arg_l, f, ulong_arg); 4889 break; 4890 # ifdef FEAT_NUM64 4891 case 'L': str_arg_l += sprintf( 4892 tmp + str_arg_l, f, ullong_arg); 4893 break; 4894 # endif 4895 } 4896 } 4897 4898 /* include the optional minus sign and possible 4899 * "0x" in the region before the zero padding 4900 * insertion point */ 4901 if (zero_padding_insertion_ind < str_arg_l 4902 && tmp[zero_padding_insertion_ind] == '-') 4903 zero_padding_insertion_ind++; 4904 if (zero_padding_insertion_ind + 1 < str_arg_l 4905 && tmp[zero_padding_insertion_ind] == '0' 4906 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4907 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4908 zero_padding_insertion_ind += 2; 4909 } 4910 4911 { 4912 size_t num_of_digits = str_arg_l 4913 - zero_padding_insertion_ind; 4914 4915 if (alternate_form && fmt_spec == 'o' 4916 /* unless zero is already the first 4917 * character */ 4918 && !(zero_padding_insertion_ind < str_arg_l 4919 && tmp[zero_padding_insertion_ind] == '0')) 4920 { 4921 /* assure leading zero for alternate-form 4922 * octal numbers */ 4923 if (!precision_specified 4924 || precision < num_of_digits + 1) 4925 { 4926 /* precision is increased to force the 4927 * first character to be zero, except if a 4928 * zero value is formatted with an 4929 * explicit precision of zero */ 4930 precision = num_of_digits + 1; 4931 precision_specified = 1; 4932 } 4933 } 4934 /* zero padding to specified precision? */ 4935 if (num_of_digits < precision) 4936 number_of_zeros_to_pad = precision - num_of_digits; 4937 } 4938 /* zero padding to specified minimal field width? */ 4939 if (!justify_left && zero_padding) 4940 { 4941 int n = (int)(min_field_width - (str_arg_l 4942 + number_of_zeros_to_pad)); 4943 if (n > 0) 4944 number_of_zeros_to_pad += n; 4945 } 4946 break; 4947 } 4948 4949 # ifdef FEAT_FLOAT 4950 case 'f': 4951 case 'F': 4952 case 'e': 4953 case 'E': 4954 case 'g': 4955 case 'G': 4956 { 4957 /* Floating point. */ 4958 double f; 4959 double abs_f; 4960 char format[40]; 4961 int l; 4962 int remove_trailing_zeroes = FALSE; 4963 4964 f = 4965 # if defined(FEAT_EVAL) 4966 tvs != NULL ? tv_float(tvs, &arg_idx) : 4967 # endif 4968 va_arg(ap, double); 4969 abs_f = f < 0 ? -f : f; 4970 4971 if (fmt_spec == 'g' || fmt_spec == 'G') 4972 { 4973 /* Would be nice to use %g directly, but it prints 4974 * "1.0" as "1", we don't want that. */ 4975 if ((abs_f >= 0.001 && abs_f < 10000000.0) 4976 || abs_f == 0.0) 4977 fmt_spec = ASCII_ISUPPER(fmt_spec) ? 'F' : 'f'; 4978 else 4979 fmt_spec = fmt_spec == 'g' ? 'e' : 'E'; 4980 remove_trailing_zeroes = TRUE; 4981 } 4982 4983 if ((fmt_spec == 'f' || fmt_spec == 'F') && 4984 # ifdef VAX 4985 abs_f > 1.0e38 4986 # else 4987 abs_f > 1.0e307 4988 # endif 4989 ) 4990 { 4991 /* Avoid a buffer overflow */ 4992 STRCPY(tmp, infinity_str(f > 0.0, fmt_spec, 4993 force_sign, space_for_positive)); 4994 str_arg_l = STRLEN(tmp); 4995 zero_padding = 0; 4996 } 4997 else 4998 { 4999 if (isnan(f)) 5000 { 5001 /* Not a number: nan or NAN */ 5002 STRCPY(tmp, ASCII_ISUPPER(fmt_spec) ? "NAN" 5003 : "nan"); 5004 str_arg_l = 3; 5005 zero_padding = 0; 5006 } 5007 else if (isinf(f)) 5008 { 5009 STRCPY(tmp, infinity_str(f > 0.0, fmt_spec, 5010 force_sign, space_for_positive)); 5011 str_arg_l = STRLEN(tmp); 5012 zero_padding = 0; 5013 } 5014 else 5015 { 5016 /* Regular float number */ 5017 format[0] = '%'; 5018 l = 1; 5019 if (force_sign) 5020 format[l++] = space_for_positive ? ' ' : '+'; 5021 if (precision_specified) 5022 { 5023 size_t max_prec = TMP_LEN - 10; 5024 5025 /* Make sure we don't get more digits than we 5026 * have room for. */ 5027 if ((fmt_spec == 'f' || fmt_spec == 'F') 5028 && abs_f > 1.0) 5029 max_prec -= (size_t)log10(abs_f); 5030 if (precision > max_prec) 5031 precision = max_prec; 5032 l += sprintf(format + l, ".%d", (int)precision); 5033 } 5034 format[l] = fmt_spec == 'F' ? 'f' : fmt_spec; 5035 format[l + 1] = NUL; 5036 5037 str_arg_l = sprintf(tmp, format, f); 5038 } 5039 5040 if (remove_trailing_zeroes) 5041 { 5042 int i; 5043 char *tp; 5044 5045 /* Using %g or %G: remove superfluous zeroes. */ 5046 if (fmt_spec == 'f' || fmt_spec == 'F') 5047 tp = tmp + str_arg_l - 1; 5048 else 5049 { 5050 tp = (char *)vim_strchr((char_u *)tmp, 5051 fmt_spec == 'e' ? 'e' : 'E'); 5052 if (tp != NULL) 5053 { 5054 /* Remove superfluous '+' and leading 5055 * zeroes from the exponent. */ 5056 if (tp[1] == '+') 5057 { 5058 /* Change "1.0e+07" to "1.0e07" */ 5059 STRMOVE(tp + 1, tp + 2); 5060 --str_arg_l; 5061 } 5062 i = (tp[1] == '-') ? 2 : 1; 5063 while (tp[i] == '0') 5064 { 5065 /* Change "1.0e07" to "1.0e7" */ 5066 STRMOVE(tp + i, tp + i + 1); 5067 --str_arg_l; 5068 } 5069 --tp; 5070 } 5071 } 5072 5073 if (tp != NULL && !precision_specified) 5074 /* Remove trailing zeroes, but keep the one 5075 * just after a dot. */ 5076 while (tp > tmp + 2 && *tp == '0' 5077 && tp[-1] != '.') 5078 { 5079 STRMOVE(tp, tp + 1); 5080 --tp; 5081 --str_arg_l; 5082 } 5083 } 5084 else 5085 { 5086 char *tp; 5087 5088 /* Be consistent: some printf("%e") use 1.0e+12 5089 * and some 1.0e+012. Remove one zero in the last 5090 * case. */ 5091 tp = (char *)vim_strchr((char_u *)tmp, 5092 fmt_spec == 'e' ? 'e' : 'E'); 5093 if (tp != NULL && (tp[1] == '+' || tp[1] == '-') 5094 && tp[2] == '0' 5095 && vim_isdigit(tp[3]) 5096 && vim_isdigit(tp[4])) 5097 { 5098 STRMOVE(tp + 2, tp + 3); 5099 --str_arg_l; 5100 } 5101 } 5102 } 5103 if (zero_padding && min_field_width > str_arg_l 5104 && (tmp[0] == '-' || force_sign)) 5105 { 5106 /* padding 0's should be inserted after the sign */ 5107 number_of_zeros_to_pad = min_field_width - str_arg_l; 5108 zero_padding_insertion_ind = 1; 5109 } 5110 str_arg = tmp; 5111 break; 5112 } 5113 # endif 5114 5115 default: 5116 /* unrecognized conversion specifier, keep format string 5117 * as-is */ 5118 zero_padding = 0; /* turn zero padding off for non-numeric 5119 conversion */ 5120 justify_left = 1; 5121 min_field_width = 0; /* reset flags */ 5122 5123 /* discard the unrecognized conversion, just keep * 5124 * the unrecognized conversion character */ 5125 str_arg = p; 5126 str_arg_l = 0; 5127 if (*p != NUL) 5128 str_arg_l++; /* include invalid conversion specifier 5129 unchanged if not at end-of-string */ 5130 break; 5131 } 5132 5133 if (*p != NUL) 5134 p++; /* step over the just processed conversion specifier */ 5135 5136 /* insert padding to the left as requested by min_field_width; 5137 * this does not include the zero padding in case of numerical 5138 * conversions*/ 5139 if (!justify_left) 5140 { 5141 /* left padding with blank or zero */ 5142 int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad)); 5143 5144 if (pn > 0) 5145 { 5146 if (str_l < str_m) 5147 { 5148 size_t avail = str_m - str_l; 5149 5150 vim_memset(str + str_l, zero_padding ? '0' : ' ', 5151 (size_t)pn > avail ? avail 5152 : (size_t)pn); 5153 } 5154 str_l += pn; 5155 } 5156 } 5157 5158 /* zero padding as requested by the precision or by the minimal 5159 * field width for numeric conversions required? */ 5160 if (number_of_zeros_to_pad == 0) 5161 { 5162 /* will not copy first part of numeric right now, * 5163 * force it to be copied later in its entirety */ 5164 zero_padding_insertion_ind = 0; 5165 } 5166 else 5167 { 5168 /* insert first part of numerics (sign or '0x') before zero 5169 * padding */ 5170 int zn = (int)zero_padding_insertion_ind; 5171 5172 if (zn > 0) 5173 { 5174 if (str_l < str_m) 5175 { 5176 size_t avail = str_m - str_l; 5177 5178 mch_memmove(str + str_l, str_arg, 5179 (size_t)zn > avail ? avail 5180 : (size_t)zn); 5181 } 5182 str_l += zn; 5183 } 5184 5185 /* insert zero padding as requested by the precision or min 5186 * field width */ 5187 zn = (int)number_of_zeros_to_pad; 5188 if (zn > 0) 5189 { 5190 if (str_l < str_m) 5191 { 5192 size_t avail = str_m - str_l; 5193 5194 vim_memset(str + str_l, '0', 5195 (size_t)zn > avail ? avail 5196 : (size_t)zn); 5197 } 5198 str_l += zn; 5199 } 5200 } 5201 5202 /* insert formatted string 5203 * (or as-is conversion specifier for unknown conversions) */ 5204 { 5205 int sn = (int)(str_arg_l - zero_padding_insertion_ind); 5206 5207 if (sn > 0) 5208 { 5209 if (str_l < str_m) 5210 { 5211 size_t avail = str_m - str_l; 5212 5213 mch_memmove(str + str_l, 5214 str_arg + zero_padding_insertion_ind, 5215 (size_t)sn > avail ? avail : (size_t)sn); 5216 } 5217 str_l += sn; 5218 } 5219 } 5220 5221 /* insert right padding */ 5222 if (justify_left) 5223 { 5224 /* right blank padding to the field width */ 5225 int pn = (int)(min_field_width 5226 - (str_arg_l + number_of_zeros_to_pad)); 5227 5228 if (pn > 0) 5229 { 5230 if (str_l < str_m) 5231 { 5232 size_t avail = str_m - str_l; 5233 5234 vim_memset(str + str_l, ' ', 5235 (size_t)pn > avail ? avail 5236 : (size_t)pn); 5237 } 5238 str_l += pn; 5239 } 5240 } 5241 vim_free(tofree); 5242 } 5243 } 5244 5245 if (str_m > 0) 5246 { 5247 /* make sure the string is nul-terminated even at the expense of 5248 * overwriting the last character (shouldn't happen, but just in case) 5249 * */ 5250 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 5251 } 5252 5253 if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 5254 EMSG(_("E767: Too many arguments to printf()")); 5255 5256 /* Return the number of characters formatted (excluding trailing nul 5257 * character), that is, the number of characters that would have been 5258 * written to the buffer if it were large enough. */ 5259 return (int)str_l; 5260 } 5261 5262 #endif /* PROTO */ 5263