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