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 void add_msg_hist(char_u *s, int len, int attr); 20 static void hit_return_msg(void); 21 static void msg_home_replace_attr(char_u *fname, int attr); 22 static void msg_puts_attr_len(char *str, int maxlen, int attr); 23 static void msg_puts_display(char_u *str, int maxlen, int attr, int recurse); 24 static void msg_scroll_up(void); 25 static void inc_msg_scrolled(void); 26 static void store_sb_text(char_u **sb_str, char_u *s, int attr, int *sb_col, int finish); 27 static void t_puts(int *t_col, char_u *t_s, char_u *s, int attr); 28 static void msg_puts_printf(char_u *str, int maxlen); 29 static int do_more_prompt(int typed_char); 30 static void msg_screen_putchar(int c, int attr); 31 static int msg_check_screen(void); 32 static void redir_write(char_u *s, int maxlen); 33 #ifdef FEAT_CON_DIALOG 34 static char_u *msg_show_console_dialog(char_u *message, char_u *buttons, int dfltbutton); 35 static int confirm_msg_used = FALSE; /* displaying confirm_msg */ 36 static char_u *confirm_msg = NULL; /* ":confirm" message */ 37 static char_u *confirm_msg_tail; /* tail of confirm_msg */ 38 #endif 39 #ifdef FEAT_JOB_CHANNEL 40 static int emsg_to_channel_log = FALSE; 41 #endif 42 43 struct msg_hist 44 { 45 struct msg_hist *next; 46 char_u *msg; 47 int attr; 48 }; 49 50 static struct msg_hist *first_msg_hist = NULL; 51 static struct msg_hist *last_msg_hist = NULL; 52 static int msg_hist_len = 0; 53 54 static FILE *verbose_fd = NULL; 55 static int verbose_did_open = FALSE; 56 57 /* 58 * When writing messages to the screen, there are many different situations. 59 * A number of variables is used to remember the current state: 60 * msg_didany TRUE when messages were written since the last time the 61 * user reacted to a prompt. 62 * Reset: After hitting a key for the hit-return prompt, 63 * hitting <CR> for the command line or input(). 64 * Set: When any message is written to the screen. 65 * msg_didout TRUE when something was written to the current line. 66 * Reset: When advancing to the next line, when the current 67 * text can be overwritten. 68 * Set: When any message is written to the screen. 69 * msg_nowait No extra delay for the last drawn message. 70 * Used in normal_cmd() before the mode message is drawn. 71 * emsg_on_display There was an error message recently. Indicates that there 72 * should be a delay before redrawing. 73 * msg_scroll The next message should not overwrite the current one. 74 * msg_scrolled How many lines the screen has been scrolled (because of 75 * messages). Used in update_screen() to scroll the screen 76 * back. Incremented each time the screen scrolls a line. 77 * msg_scrolled_ign TRUE when msg_scrolled is non-zero and msg_puts_attr() 78 * writes something without scrolling should not make 79 * need_wait_return to be set. This is a hack to make ":ts" 80 * work without an extra prompt. 81 * lines_left Number of lines available for messages before the 82 * more-prompt is to be given. -1 when not set. 83 * need_wait_return TRUE when the hit-return prompt is needed. 84 * Reset: After giving the hit-return prompt, when the user 85 * has answered some other prompt. 86 * Set: When the ruler or typeahead display is overwritten, 87 * scrolling the screen for some message. 88 * keep_msg Message to be displayed after redrawing the screen, in 89 * main_loop(). 90 * This is an allocated string or NULL when not used. 91 */ 92 93 /* 94 * msg(s) - displays the string 's' on the status line 95 * When terminal not initialized (yet) mch_errmsg(..) is used. 96 * return TRUE if wait_return not called 97 */ 98 int 99 msg(char *s) 100 { 101 return msg_attr_keep(s, 0, FALSE); 102 } 103 104 #if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \ 105 || defined(FEAT_GUI_GTK) || defined(PROTO) 106 /* 107 * Like msg() but keep it silent when 'verbosefile' is set. 108 */ 109 int 110 verb_msg(char *s) 111 { 112 int n; 113 114 verbose_enter(); 115 n = msg_attr_keep(s, 0, FALSE); 116 verbose_leave(); 117 118 return n; 119 } 120 #endif 121 122 int 123 msg_attr(char *s, int attr) 124 { 125 return msg_attr_keep(s, attr, FALSE); 126 } 127 128 int 129 msg_attr_keep( 130 char *s, 131 int attr, 132 int keep) /* TRUE: set keep_msg if it doesn't scroll */ 133 { 134 static int entered = 0; 135 int retval; 136 char_u *buf = NULL; 137 138 /* Skip messages not matching ":filter pattern". 139 * Don't filter when there is an error. */ 140 if (!emsg_on_display && message_filtered((char_u *)s)) 141 return TRUE; 142 143 #ifdef FEAT_EVAL 144 if (attr == 0) 145 set_vim_var_string(VV_STATUSMSG, (char_u *)s, -1); 146 #endif 147 148 /* 149 * It is possible that displaying a messages causes a problem (e.g., 150 * when redrawing the window), which causes another message, etc.. To 151 * break this loop, limit the recursiveness to 3 levels. 152 */ 153 if (entered >= 3) 154 return TRUE; 155 ++entered; 156 157 /* Add message to history (unless it's a repeated kept message or a 158 * truncated message) */ 159 if ((char_u *)s != keep_msg 160 || (*s != '<' 161 && last_msg_hist != NULL 162 && last_msg_hist->msg != NULL 163 && STRCMP(s, last_msg_hist->msg))) 164 add_msg_hist((char_u *)s, -1, attr); 165 166 #ifdef FEAT_JOB_CHANNEL 167 if (emsg_to_channel_log) 168 /* Write message in the channel log. */ 169 ch_log(NULL, "ERROR: %s", (char *)s); 170 #endif 171 172 /* When displaying keep_msg, don't let msg_start() free it, caller must do 173 * that. */ 174 if ((char_u *)s == keep_msg) 175 keep_msg = NULL; 176 177 /* Truncate the message if needed. */ 178 msg_start(); 179 buf = msg_strtrunc((char_u *)s, FALSE); 180 if (buf != NULL) 181 s = (char *)buf; 182 183 msg_outtrans_attr((char_u *)s, attr); 184 msg_clr_eos(); 185 retval = msg_end(); 186 187 if (keep && retval && vim_strsize((char_u *)s) 188 < (int)(Rows - cmdline_row - 1) * Columns + sc_col) 189 set_keep_msg((char_u *)s, 0); 190 191 vim_free(buf); 192 --entered; 193 return retval; 194 } 195 196 /* 197 * Truncate a string such that it can be printed without causing a scroll. 198 * Returns an allocated string or NULL when no truncating is done. 199 */ 200 char_u * 201 msg_strtrunc( 202 char_u *s, 203 int force) /* always truncate */ 204 { 205 char_u *buf = NULL; 206 int len; 207 int room; 208 209 /* May truncate message to avoid a hit-return prompt */ 210 if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL) 211 && !exmode_active && msg_silent == 0) || force) 212 { 213 len = vim_strsize(s); 214 if (msg_scrolled != 0) 215 /* Use all the columns. */ 216 room = (int)(Rows - msg_row) * Columns - 1; 217 else 218 /* Use up to 'showcmd' column. */ 219 room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1; 220 if (len > room && room > 0) 221 { 222 if (enc_utf8) 223 /* may have up to 18 bytes per cell (6 per char, up to two 224 * composing chars) */ 225 len = (room + 2) * 18; 226 else if (enc_dbcs == DBCS_JPNU) 227 /* may have up to 2 bytes per cell for euc-jp */ 228 len = (room + 2) * 2; 229 else 230 len = room + 2; 231 buf = alloc(len); 232 if (buf != NULL) 233 trunc_string(s, buf, room, len); 234 } 235 } 236 return buf; 237 } 238 239 /* 240 * Truncate a string "s" to "buf" with cell width "room". 241 * "s" and "buf" may be equal. 242 */ 243 void 244 trunc_string( 245 char_u *s, 246 char_u *buf, 247 int room_in, 248 int buflen) 249 { 250 size_t room = room_in - 3; /* "..." takes 3 chars */ 251 size_t half; 252 size_t len = 0; 253 int e; 254 int i; 255 int n; 256 257 if (room_in < 3) 258 room = 0; 259 half = room / 2; 260 261 /* First part: Start of the string. */ 262 for (e = 0; len < half && e < buflen; ++e) 263 { 264 if (s[e] == NUL) 265 { 266 /* text fits without truncating! */ 267 buf[e] = NUL; 268 return; 269 } 270 n = ptr2cells(s + e); 271 if (len + n > half) 272 break; 273 len += n; 274 buf[e] = s[e]; 275 if (has_mbyte) 276 for (n = (*mb_ptr2len)(s + e); --n > 0; ) 277 { 278 if (++e == buflen) 279 break; 280 buf[e] = s[e]; 281 } 282 } 283 284 /* Last part: End of the string. */ 285 i = e; 286 if (enc_dbcs != 0) 287 { 288 /* For DBCS going backwards in a string is slow, but 289 * computing the cell width isn't too slow: go forward 290 * until the rest fits. */ 291 n = vim_strsize(s + i); 292 while (len + n > room) 293 { 294 n -= ptr2cells(s + i); 295 i += (*mb_ptr2len)(s + i); 296 } 297 } 298 else if (enc_utf8) 299 { 300 /* For UTF-8 we can go backwards easily. */ 301 half = i = (int)STRLEN(s); 302 for (;;) 303 { 304 do 305 half = half - utf_head_off(s, s + half - 1) - 1; 306 while (half > 0 && utf_iscomposing(utf_ptr2char(s + half))); 307 n = ptr2cells(s + half); 308 if (len + n > room || half == 0) 309 break; 310 len += n; 311 i = (int)half; 312 } 313 } 314 else 315 { 316 for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i) 317 len += n; 318 } 319 320 321 if (i <= e + 3) 322 { 323 /* text fits without truncating */ 324 if (s != buf) 325 { 326 len = STRLEN(s); 327 if (len >= (size_t)buflen) 328 len = buflen - 1; 329 len = len - e + 1; 330 if (len < 1) 331 buf[e - 1] = NUL; 332 else 333 mch_memmove(buf + e, s + e, len); 334 } 335 } 336 else if (e + 3 < buflen) 337 { 338 /* set the middle and copy the last part */ 339 mch_memmove(buf + e, "...", (size_t)3); 340 len = STRLEN(s + i) + 1; 341 if (len >= (size_t)buflen - e - 3) 342 len = buflen - e - 3 - 1; 343 mch_memmove(buf + e + 3, s + i, len); 344 buf[e + 3 + len - 1] = NUL; 345 } 346 else 347 { 348 /* can't fit in the "...", just truncate it */ 349 buf[e - 1] = NUL; 350 } 351 } 352 353 /* 354 * Automatic prototype generation does not understand this function. 355 * Note: Caller of smsg() and smsg_attr() must check the resulting string is 356 * shorter than IOSIZE!!! 357 */ 358 #ifndef PROTO 359 360 int vim_snprintf(char *str, size_t str_m, const char *fmt, ...); 361 362 int 363 # ifdef __BORLANDC__ 364 _RTLENTRYF 365 # endif 366 smsg(const char *s, ...) 367 { 368 va_list arglist; 369 370 va_start(arglist, s); 371 vim_vsnprintf((char *)IObuff, IOSIZE, s, arglist); 372 va_end(arglist); 373 return msg((char *)IObuff); 374 } 375 376 int 377 # ifdef __BORLANDC__ 378 _RTLENTRYF 379 # endif 380 smsg_attr(int attr, const char *s, ...) 381 { 382 va_list arglist; 383 384 va_start(arglist, s); 385 vim_vsnprintf((char *)IObuff, IOSIZE, s, arglist); 386 va_end(arglist); 387 return msg_attr((char *)IObuff, attr); 388 } 389 390 int 391 # ifdef __BORLANDC__ 392 _RTLENTRYF 393 # endif 394 smsg_attr_keep(int attr, const char *s, ...) 395 { 396 va_list arglist; 397 398 va_start(arglist, s); 399 vim_vsnprintf((char *)IObuff, IOSIZE, s, arglist); 400 va_end(arglist); 401 return msg_attr_keep((char *)IObuff, attr, TRUE); 402 } 403 404 #endif 405 406 /* 407 * Remember the last sourcing name/lnum used in an error message, so that it 408 * isn't printed each time when it didn't change. 409 */ 410 static int last_sourcing_lnum = 0; 411 static char_u *last_sourcing_name = NULL; 412 413 /* 414 * Reset the last used sourcing name/lnum. Makes sure it is displayed again 415 * for the next error message; 416 */ 417 void 418 reset_last_sourcing(void) 419 { 420 VIM_CLEAR(last_sourcing_name); 421 last_sourcing_lnum = 0; 422 } 423 424 /* 425 * Return TRUE if "sourcing_name" differs from "last_sourcing_name". 426 */ 427 static int 428 other_sourcing_name(void) 429 { 430 if (sourcing_name != NULL) 431 { 432 if (last_sourcing_name != NULL) 433 return STRCMP(sourcing_name, last_sourcing_name) != 0; 434 return TRUE; 435 } 436 return FALSE; 437 } 438 439 /* 440 * Get the message about the source, as used for an error message. 441 * Returns an allocated string with room for one more character. 442 * Returns NULL when no message is to be given. 443 */ 444 static char_u * 445 get_emsg_source(void) 446 { 447 char_u *Buf, *p; 448 449 if (sourcing_name != NULL && other_sourcing_name()) 450 { 451 p = (char_u *)_("Error detected while processing %s:"); 452 Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); 453 if (Buf != NULL) 454 sprintf((char *)Buf, (char *)p, sourcing_name); 455 return Buf; 456 } 457 return NULL; 458 } 459 460 /* 461 * Get the message about the source lnum, as used for an error message. 462 * Returns an allocated string with room for one more character. 463 * Returns NULL when no message is to be given. 464 */ 465 static char_u * 466 get_emsg_lnum(void) 467 { 468 char_u *Buf, *p; 469 470 /* lnum is 0 when executing a command from the command line 471 * argument, we don't want a line number then */ 472 if (sourcing_name != NULL 473 && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum) 474 && sourcing_lnum != 0) 475 { 476 p = (char_u *)_("line %4ld:"); 477 Buf = alloc((unsigned)(STRLEN(p) + 20)); 478 if (Buf != NULL) 479 sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); 480 return Buf; 481 } 482 return NULL; 483 } 484 485 /* 486 * Display name and line number for the source of an error. 487 * Remember the file name and line number, so that for the next error the info 488 * is only displayed if it changed. 489 */ 490 void 491 msg_source(int attr) 492 { 493 char_u *p; 494 495 ++no_wait_return; 496 p = get_emsg_source(); 497 if (p != NULL) 498 { 499 msg_attr((char *)p, attr); 500 vim_free(p); 501 } 502 p = get_emsg_lnum(); 503 if (p != NULL) 504 { 505 msg_attr((char *)p, HL_ATTR(HLF_N)); 506 vim_free(p); 507 last_sourcing_lnum = sourcing_lnum; /* only once for each line */ 508 } 509 510 /* remember the last sourcing name printed, also when it's empty */ 511 if (sourcing_name == NULL || other_sourcing_name()) 512 { 513 vim_free(last_sourcing_name); 514 if (sourcing_name == NULL) 515 last_sourcing_name = NULL; 516 else 517 last_sourcing_name = vim_strsave(sourcing_name); 518 } 519 --no_wait_return; 520 } 521 522 /* 523 * Return TRUE if not giving error messages right now: 524 * If "emsg_off" is set: no error messages at the moment. 525 * If "msg" is in 'debug': do error message but without side effects. 526 * If "emsg_skip" is set: never do error messages. 527 */ 528 int 529 emsg_not_now(void) 530 { 531 if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL 532 && vim_strchr(p_debug, 't') == NULL) 533 #ifdef FEAT_EVAL 534 || emsg_skip > 0 535 #endif 536 ) 537 return TRUE; 538 return FALSE; 539 } 540 541 #if defined(FEAT_EVAL) || defined(PROTO) 542 static garray_T ignore_error_list = GA_EMPTY; 543 544 void 545 ignore_error_for_testing(char_u *error) 546 { 547 if (ignore_error_list.ga_itemsize == 0) 548 ga_init2(&ignore_error_list, sizeof(char_u *), 1); 549 550 if (STRCMP("RESET", error) == 0) 551 ga_clear_strings(&ignore_error_list); 552 else 553 ga_add_string(&ignore_error_list, error); 554 } 555 556 static int 557 ignore_error(char_u *msg) 558 { 559 int i; 560 561 for (i = 0; i < ignore_error_list.ga_len; ++i) 562 if (strstr((char *)msg, 563 (char *)((char_u **)(ignore_error_list.ga_data))[i]) != NULL) 564 return TRUE; 565 return FALSE; 566 } 567 #endif 568 569 #if !defined(HAVE_STRERROR) || defined(PROTO) 570 /* 571 * Replacement for perror() that behaves more or less like emsg() was called. 572 * v:errmsg will be set and called_emsg will be set. 573 */ 574 void 575 do_perror(char *msg) 576 { 577 perror(msg); 578 ++emsg_silent; 579 emsg(msg); 580 --emsg_silent; 581 } 582 #endif 583 584 /* 585 * emsg_core() - display an error message 586 * 587 * Rings the bell, if appropriate, and calls message() to do the real work 588 * When terminal not initialized (yet) mch_errmsg(..) is used. 589 * 590 * Return TRUE if wait_return not called. 591 * Note: caller must check 'emsg_not_now()' before calling this. 592 */ 593 static int 594 emsg_core(char_u *s) 595 { 596 int attr; 597 char_u *p; 598 int r; 599 #ifdef FEAT_EVAL 600 int ignore = FALSE; 601 int severe; 602 #endif 603 604 #ifdef FEAT_EVAL 605 /* When testing some errors are turned into a normal message. */ 606 if (ignore_error(s)) 607 /* don't call msg() if it results in a dialog */ 608 return msg_use_printf() ? FALSE : msg((char *)s); 609 #endif 610 611 called_emsg = TRUE; 612 613 #ifdef FEAT_EVAL 614 /* If "emsg_severe" is TRUE: When an error exception is to be thrown, 615 * prefer this message over previous messages for the same command. */ 616 severe = emsg_severe; 617 emsg_severe = FALSE; 618 #endif 619 620 if (!emsg_off || vim_strchr(p_debug, 't') != NULL) 621 { 622 #ifdef FEAT_EVAL 623 /* 624 * Cause a throw of an error exception if appropriate. Don't display 625 * the error message in this case. (If no matching catch clause will 626 * be found, the message will be displayed later on.) "ignore" is set 627 * when the message should be ignored completely (used for the 628 * interrupt message). 629 */ 630 if (cause_errthrow(s, severe, &ignore) == TRUE) 631 { 632 if (!ignore) 633 ++did_emsg; 634 return TRUE; 635 } 636 637 /* set "v:errmsg", also when using ":silent! cmd" */ 638 set_vim_var_string(VV_ERRMSG, s, -1); 639 #endif 640 641 /* 642 * When using ":silent! cmd" ignore error messages. 643 * But do write it to the redirection file. 644 */ 645 if (emsg_silent != 0) 646 { 647 if (emsg_noredir == 0) 648 { 649 msg_start(); 650 p = get_emsg_source(); 651 if (p != NULL) 652 { 653 STRCAT(p, "\n"); 654 redir_write(p, -1); 655 vim_free(p); 656 } 657 p = get_emsg_lnum(); 658 if (p != NULL) 659 { 660 STRCAT(p, "\n"); 661 redir_write(p, -1); 662 vim_free(p); 663 } 664 redir_write(s, -1); 665 } 666 #ifdef FEAT_JOB_CHANNEL 667 ch_log(NULL, "ERROR: %s", (char *)s); 668 #endif 669 return TRUE; 670 } 671 672 ex_exitval = 1; 673 674 /* Reset msg_silent, an error causes messages to be switched back on. 675 */ 676 msg_silent = 0; 677 cmd_silent = FALSE; 678 679 if (global_busy) /* break :global command */ 680 ++global_busy; 681 682 if (p_eb) 683 beep_flush(); /* also includes flush_buffers() */ 684 else 685 flush_buffers(FLUSH_MINIMAL); // flush internal buffers 686 ++did_emsg; // flag for DoOneCmd() 687 #ifdef FEAT_EVAL 688 did_uncaught_emsg = TRUE; 689 #endif 690 } 691 692 emsg_on_display = TRUE; /* remember there is an error message */ 693 ++msg_scroll; /* don't overwrite a previous message */ 694 attr = HL_ATTR(HLF_E); /* set highlight mode for error messages */ 695 if (msg_scrolled != 0) 696 need_wait_return = TRUE; /* needed in case emsg() is called after 697 * wait_return has reset need_wait_return 698 * and a redraw is expected because 699 * msg_scrolled is non-zero */ 700 701 #ifdef FEAT_JOB_CHANNEL 702 emsg_to_channel_log = TRUE; 703 #endif 704 /* 705 * Display name and line number for the source of the error. 706 */ 707 msg_source(attr); 708 709 /* 710 * Display the error message itself. 711 */ 712 msg_nowait = FALSE; /* wait for this msg */ 713 r = msg_attr((char *)s, attr); 714 715 #ifdef FEAT_JOB_CHANNEL 716 emsg_to_channel_log = FALSE; 717 #endif 718 return r; 719 } 720 721 /* 722 * Print an error message. 723 */ 724 int 725 emsg(char *s) 726 { 727 /* Skip this if not giving error messages at the moment. */ 728 if (!emsg_not_now()) 729 return emsg_core((char_u *)s); 730 return TRUE; /* no error messages at the moment */ 731 } 732 733 #ifndef PROTO // manual proto with __attribute__ 734 /* 735 * Print an error message with format string and variable arguments. 736 * Note: caller must not pass 'IObuff' as 1st argument. 737 */ 738 int 739 semsg(const char *s, ...) 740 { 741 /* Skip this if not giving error messages at the moment. */ 742 if (!emsg_not_now()) 743 { 744 va_list ap; 745 746 va_start(ap, s); 747 vim_vsnprintf((char *)IObuff, IOSIZE, s, ap); 748 va_end(ap); 749 return emsg_core(IObuff); 750 } 751 return TRUE; /* no error messages at the moment */ 752 } 753 #endif 754 755 /* 756 * Same as emsg(...), but abort on error when ABORT_ON_INTERNAL_ERROR is 757 * defined. It is used for internal errors only, so that they can be 758 * detected when fuzzing vim. 759 */ 760 void 761 iemsg(char *s) 762 { 763 if (!emsg_not_now()) 764 emsg_core((char_u *)s); 765 #ifdef ABORT_ON_INTERNAL_ERROR 766 abort(); 767 #endif 768 } 769 770 #ifndef PROTO // manual proto with __attribute__ 771 /* 772 * Same as semsg(...) 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 * Note: caller must not pass 'IObuff' as 1st argument. 776 */ 777 void 778 siemsg(const char *s, ...) 779 { 780 if (!emsg_not_now()) 781 { 782 va_list ap; 783 784 va_start(ap, s); 785 vim_vsnprintf((char *)IObuff, IOSIZE, s, ap); 786 va_end(ap); 787 emsg_core(IObuff); 788 } 789 # ifdef ABORT_ON_INTERNAL_ERROR 790 abort(); 791 # endif 792 } 793 #endif 794 795 /* 796 * Give an "Internal error" message. 797 */ 798 void 799 internal_error(char *where) 800 { 801 siemsg(_(e_intern2), where); 802 } 803 804 /* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */ 805 806 void 807 emsg_invreg(int name) 808 { 809 semsg(_("E354: Invalid register name: '%s'"), transchar(name)); 810 } 811 812 /* 813 * Like msg(), but truncate to a single line if p_shm contains 't', or when 814 * "force" is TRUE. This truncates in another way as for normal messages. 815 * Careful: The string may be changed by msg_may_trunc()! 816 * Returns a pointer to the printed message, if wait_return() not called. 817 */ 818 char * 819 msg_trunc_attr(char *s, int force, int attr) 820 { 821 int n; 822 char *ts; 823 824 /* Add message to history before truncating */ 825 add_msg_hist((char_u *)s, -1, attr); 826 827 ts = (char *)msg_may_trunc(force, (char_u *)s); 828 829 msg_hist_off = TRUE; 830 n = msg_attr(ts, attr); 831 msg_hist_off = FALSE; 832 833 if (n) 834 return ts; 835 return NULL; 836 } 837 838 /* 839 * Check if message "s" should be truncated at the start (for filenames). 840 * Return a pointer to where the truncated message starts. 841 * Note: May change the message by replacing a character with '<'. 842 */ 843 char_u * 844 msg_may_trunc(int force, char_u *s) 845 { 846 int n; 847 int room; 848 849 room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1; 850 if ((force || (shortmess(SHM_TRUNC) && !exmode_active)) 851 && (n = (int)STRLEN(s) - room) > 0) 852 { 853 if (has_mbyte) 854 { 855 int size = vim_strsize(s); 856 857 /* There may be room anyway when there are multibyte chars. */ 858 if (size <= room) 859 return s; 860 861 for (n = 0; size >= room; ) 862 { 863 size -= (*mb_ptr2cells)(s + n); 864 n += (*mb_ptr2len)(s + n); 865 } 866 --n; 867 } 868 s += n; 869 *s = '<'; 870 } 871 return s; 872 } 873 874 static void 875 add_msg_hist( 876 char_u *s, 877 int len, /* -1 for undetermined length */ 878 int attr) 879 { 880 struct msg_hist *p; 881 882 if (msg_hist_off || msg_silent != 0) 883 return; 884 885 /* Don't let the message history get too big */ 886 while (msg_hist_len > MAX_MSG_HIST_LEN) 887 (void)delete_first_msg(); 888 889 /* allocate an entry and add the message at the end of the history */ 890 p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist)); 891 if (p != NULL) 892 { 893 if (len < 0) 894 len = (int)STRLEN(s); 895 /* remove leading and trailing newlines */ 896 while (len > 0 && *s == '\n') 897 { 898 ++s; 899 --len; 900 } 901 while (len > 0 && s[len - 1] == '\n') 902 --len; 903 p->msg = vim_strnsave(s, len); 904 p->next = NULL; 905 p->attr = attr; 906 if (last_msg_hist != NULL) 907 last_msg_hist->next = p; 908 last_msg_hist = p; 909 if (first_msg_hist == NULL) 910 first_msg_hist = last_msg_hist; 911 ++msg_hist_len; 912 } 913 } 914 915 /* 916 * Delete the first (oldest) message from the history. 917 * Returns FAIL if there are no messages. 918 */ 919 int 920 delete_first_msg(void) 921 { 922 struct msg_hist *p; 923 924 if (msg_hist_len <= 0) 925 return FAIL; 926 p = first_msg_hist; 927 first_msg_hist = p->next; 928 if (first_msg_hist == NULL) 929 last_msg_hist = NULL; /* history is empty */ 930 vim_free(p->msg); 931 vim_free(p); 932 --msg_hist_len; 933 return OK; 934 } 935 936 /* 937 * ":messages" command. 938 */ 939 void 940 ex_messages(exarg_T *eap) 941 { 942 struct msg_hist *p; 943 char_u *s; 944 int c = 0; 945 946 if (STRCMP(eap->arg, "clear") == 0) 947 { 948 int keep = eap->addr_count == 0 ? 0 : eap->line2; 949 950 while (msg_hist_len > keep) 951 (void)delete_first_msg(); 952 return; 953 } 954 955 if (*eap->arg != NUL) 956 { 957 emsg(_(e_invarg)); 958 return; 959 } 960 961 msg_hist_off = TRUE; 962 963 p = first_msg_hist; 964 if (eap->addr_count != 0) 965 { 966 /* Count total messages */ 967 for (; p != NULL && !got_int; p = p->next) 968 c++; 969 970 c -= eap->line2; 971 972 /* Skip without number of messages specified */ 973 for (p = first_msg_hist; p != NULL && !got_int && c > 0; 974 p = p->next, c--); 975 } 976 977 if (p == first_msg_hist) 978 { 979 s = mch_getenv((char_u *)"LANG"); 980 if (s != NULL && *s != NUL) 981 // The next comment is extracted by xgettext and put in po file for 982 // translators to read. 983 msg_attr( 984 // Translator: Please replace the name and email address 985 // with the appropriate text for your translation. 986 _("Messages maintainer: Bram Moolenaar <[email protected]>"), 987 HL_ATTR(HLF_T)); 988 } 989 990 /* Display what was not skipped. */ 991 for (; p != NULL && !got_int; p = p->next) 992 if (p->msg != NULL) 993 msg_attr((char *)p->msg, p->attr); 994 995 msg_hist_off = FALSE; 996 } 997 998 #if defined(FEAT_CON_DIALOG) || defined(FIND_REPLACE_DIALOG) || defined(PROTO) 999 /* 1000 * Call this after prompting the user. This will avoid a hit-return message 1001 * and a delay. 1002 */ 1003 void 1004 msg_end_prompt(void) 1005 { 1006 need_wait_return = FALSE; 1007 emsg_on_display = FALSE; 1008 cmdline_row = msg_row; 1009 msg_col = 0; 1010 msg_clr_eos(); 1011 lines_left = -1; 1012 } 1013 #endif 1014 1015 /* 1016 * Wait for the user to hit a key (normally Enter). 1017 * If "redraw" is TRUE, clear and redraw the screen. 1018 * If "redraw" is FALSE, just redraw the screen. 1019 * If "redraw" is -1, don't redraw at all. 1020 */ 1021 void 1022 wait_return(int redraw) 1023 { 1024 int c; 1025 int oldState; 1026 int tmpState; 1027 int had_got_int; 1028 int save_reg_recording; 1029 FILE *save_scriptout; 1030 1031 if (redraw == TRUE) 1032 must_redraw = CLEAR; 1033 1034 /* If using ":silent cmd", don't wait for a return. Also don't set 1035 * need_wait_return to do it later. */ 1036 if (msg_silent != 0) 1037 return; 1038 1039 /* 1040 * When inside vgetc(), we can't wait for a typed character at all. 1041 * With the global command (and some others) we only need one return at 1042 * the end. Adjust cmdline_row to avoid the next message overwriting the 1043 * last one. 1044 */ 1045 if (vgetc_busy > 0) 1046 return; 1047 need_wait_return = TRUE; 1048 if (no_wait_return) 1049 { 1050 if (!exmode_active) 1051 cmdline_row = msg_row; 1052 return; 1053 } 1054 1055 redir_off = TRUE; /* don't redirect this message */ 1056 oldState = State; 1057 if (quit_more) 1058 { 1059 c = CAR; /* just pretend CR was hit */ 1060 quit_more = FALSE; 1061 got_int = FALSE; 1062 } 1063 else if (exmode_active) 1064 { 1065 msg_puts(" "); /* make sure the cursor is on the right line */ 1066 c = CAR; /* no need for a return in ex mode */ 1067 got_int = FALSE; 1068 } 1069 else 1070 { 1071 /* Make sure the hit-return prompt is on screen when 'guioptions' was 1072 * just changed. */ 1073 screenalloc(FALSE); 1074 1075 State = HITRETURN; 1076 #ifdef FEAT_MOUSE 1077 setmouse(); 1078 #endif 1079 #ifdef USE_ON_FLY_SCROLL 1080 dont_scroll = TRUE; /* disallow scrolling here */ 1081 #endif 1082 cmdline_row = msg_row; 1083 1084 /* Avoid the sequence that the user types ":" at the hit-return prompt 1085 * to start an Ex command, but the file-changed dialog gets in the 1086 * way. */ 1087 if (need_check_timestamps) 1088 check_timestamps(FALSE); 1089 1090 hit_return_msg(); 1091 1092 do 1093 { 1094 /* Remember "got_int", if it is set vgetc() probably returns a 1095 * CTRL-C, but we need to loop then. */ 1096 had_got_int = got_int; 1097 1098 /* Don't do mappings here, we put the character back in the 1099 * typeahead buffer. */ 1100 ++no_mapping; 1101 ++allow_keys; 1102 1103 /* Temporarily disable Recording. If Recording is active, the 1104 * character will be recorded later, since it will be added to the 1105 * typebuf after the loop */ 1106 save_reg_recording = reg_recording; 1107 save_scriptout = scriptout; 1108 reg_recording = 0; 1109 scriptout = NULL; 1110 c = safe_vgetc(); 1111 if (had_got_int && !global_busy) 1112 got_int = FALSE; 1113 --no_mapping; 1114 --allow_keys; 1115 reg_recording = save_reg_recording; 1116 scriptout = save_scriptout; 1117 1118 #ifdef FEAT_CLIPBOARD 1119 /* Strange way to allow copying (yanking) a modeless selection at 1120 * the hit-enter prompt. Use CTRL-Y, because the same is used in 1121 * Cmdline-mode and it's harmless when there is no selection. */ 1122 if (c == Ctrl_Y && clip_star.state == SELECT_DONE) 1123 { 1124 clip_copy_modeless_selection(TRUE); 1125 c = K_IGNORE; 1126 } 1127 #endif 1128 1129 /* 1130 * Allow scrolling back in the messages. 1131 * Also accept scroll-down commands when messages fill the screen, 1132 * to avoid that typing one 'j' too many makes the messages 1133 * disappear. 1134 */ 1135 if (p_more && !p_cp) 1136 { 1137 if (c == 'b' || c == 'k' || c == 'u' || c == 'g' 1138 || c == K_UP || c == K_PAGEUP) 1139 { 1140 if (msg_scrolled > Rows) 1141 /* scroll back to show older messages */ 1142 do_more_prompt(c); 1143 else 1144 { 1145 msg_didout = FALSE; 1146 c = K_IGNORE; 1147 msg_col = 1148 #ifdef FEAT_RIGHTLEFT 1149 cmdmsg_rl ? Columns - 1 : 1150 #endif 1151 0; 1152 } 1153 if (quit_more) 1154 { 1155 c = CAR; /* just pretend CR was hit */ 1156 quit_more = FALSE; 1157 got_int = FALSE; 1158 } 1159 else if (c != K_IGNORE) 1160 { 1161 c = K_IGNORE; 1162 hit_return_msg(); 1163 } 1164 } 1165 else if (msg_scrolled > Rows - 2 1166 && (c == 'j' || c == 'd' || c == 'f' 1167 || c == K_DOWN || c == K_PAGEDOWN)) 1168 c = K_IGNORE; 1169 } 1170 } while ((had_got_int && c == Ctrl_C) 1171 || c == K_IGNORE 1172 #ifdef FEAT_GUI 1173 || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR 1174 #endif 1175 #ifdef FEAT_MOUSE 1176 || c == K_LEFTDRAG || c == K_LEFTRELEASE 1177 || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE 1178 || c == K_RIGHTDRAG || c == K_RIGHTRELEASE 1179 || c == K_MOUSELEFT || c == K_MOUSERIGHT 1180 || c == K_MOUSEDOWN || c == K_MOUSEUP 1181 || c == K_MOUSEMOVE 1182 || (!mouse_has(MOUSE_RETURN) 1183 && mouse_row < msg_row 1184 && (c == K_LEFTMOUSE 1185 || c == K_MIDDLEMOUSE 1186 || c == K_RIGHTMOUSE 1187 || c == K_X1MOUSE 1188 || c == K_X2MOUSE)) 1189 #endif 1190 ); 1191 ui_breakcheck(); 1192 #ifdef FEAT_MOUSE 1193 /* 1194 * Avoid that the mouse-up event causes visual mode to start. 1195 */ 1196 if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE 1197 || c == K_X1MOUSE || c == K_X2MOUSE) 1198 (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); 1199 else 1200 #endif 1201 if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) 1202 { 1203 /* Put the character back in the typeahead buffer. Don't use the 1204 * stuff buffer, because lmaps wouldn't work. */ 1205 ins_char_typebuf(c); 1206 do_redraw = TRUE; /* need a redraw even though there is 1207 typeahead */ 1208 } 1209 } 1210 redir_off = FALSE; 1211 1212 /* 1213 * If the user hits ':', '?' or '/' we get a command line from the next 1214 * line. 1215 */ 1216 if (c == ':' || c == '?' || c == '/') 1217 { 1218 if (!exmode_active) 1219 cmdline_row = msg_row; 1220 skip_redraw = TRUE; /* skip redraw once */ 1221 do_redraw = FALSE; 1222 #ifdef FEAT_TERMINAL 1223 skip_term_loop = TRUE; 1224 #endif 1225 } 1226 1227 /* 1228 * If the window size changed set_shellsize() will redraw the screen. 1229 * Otherwise the screen is only redrawn if 'redraw' is set and no ':' 1230 * typed. 1231 */ 1232 tmpState = State; 1233 State = oldState; /* restore State before set_shellsize */ 1234 #ifdef FEAT_MOUSE 1235 setmouse(); 1236 #endif 1237 msg_check(); 1238 1239 #if defined(UNIX) || defined(VMS) 1240 /* 1241 * When switching screens, we need to output an extra newline on exit. 1242 */ 1243 if (swapping_screen() && !termcap_active) 1244 newline_on_exit = TRUE; 1245 #endif 1246 1247 need_wait_return = FALSE; 1248 did_wait_return = TRUE; 1249 emsg_on_display = FALSE; /* can delete error message now */ 1250 lines_left = -1; /* reset lines_left at next msg_start() */ 1251 reset_last_sourcing(); 1252 if (keep_msg != NULL && vim_strsize(keep_msg) >= 1253 (Rows - cmdline_row - 1) * Columns + sc_col) 1254 VIM_CLEAR(keep_msg); /* don't redisplay message, it's too long */ 1255 1256 if (tmpState == SETWSIZE) /* got resize event while in vgetc() */ 1257 { 1258 starttermcap(); /* start termcap before redrawing */ 1259 shell_resized(); 1260 } 1261 else if (!skip_redraw 1262 && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) 1263 { 1264 starttermcap(); /* start termcap before redrawing */ 1265 redraw_later(VALID); 1266 } 1267 } 1268 1269 /* 1270 * Write the hit-return prompt. 1271 */ 1272 static void 1273 hit_return_msg(void) 1274 { 1275 int save_p_more = p_more; 1276 1277 p_more = FALSE; /* don't want see this message when scrolling back */ 1278 if (msg_didout) /* start on a new line */ 1279 msg_putchar('\n'); 1280 if (got_int) 1281 msg_puts(_("Interrupt: ")); 1282 1283 msg_puts_attr(_("Press ENTER or type command to continue"), HL_ATTR(HLF_R)); 1284 if (!msg_use_printf()) 1285 msg_clr_eos(); 1286 p_more = save_p_more; 1287 } 1288 1289 /* 1290 * Set "keep_msg" to "s". Free the old value and check for NULL pointer. 1291 */ 1292 void 1293 set_keep_msg(char_u *s, int attr) 1294 { 1295 vim_free(keep_msg); 1296 if (s != NULL && msg_silent == 0) 1297 keep_msg = vim_strsave(s); 1298 else 1299 keep_msg = NULL; 1300 keep_msg_more = FALSE; 1301 keep_msg_attr = attr; 1302 } 1303 1304 #if defined(FEAT_TERMRESPONSE) || defined(PROTO) 1305 /* 1306 * If there currently is a message being displayed, set "keep_msg" to it, so 1307 * that it will be displayed again after redraw. 1308 */ 1309 void 1310 set_keep_msg_from_hist(void) 1311 { 1312 if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0 1313 && (State & NORMAL)) 1314 set_keep_msg(last_msg_hist->msg, last_msg_hist->attr); 1315 } 1316 #endif 1317 1318 /* 1319 * Prepare for outputting characters in the command line. 1320 */ 1321 void 1322 msg_start(void) 1323 { 1324 int did_return = FALSE; 1325 1326 if (!msg_silent) 1327 VIM_CLEAR(keep_msg); 1328 1329 #ifdef FEAT_EVAL 1330 if (need_clr_eos) 1331 { 1332 /* Halfway an ":echo" command and getting an (error) message: clear 1333 * any text from the command. */ 1334 need_clr_eos = FALSE; 1335 msg_clr_eos(); 1336 } 1337 #endif 1338 1339 if (!msg_scroll && full_screen) /* overwrite last message */ 1340 { 1341 msg_row = cmdline_row; 1342 msg_col = 1343 #ifdef FEAT_RIGHTLEFT 1344 cmdmsg_rl ? Columns - 1 : 1345 #endif 1346 0; 1347 } 1348 else if (msg_didout) /* start message on next line */ 1349 { 1350 msg_putchar('\n'); 1351 did_return = TRUE; 1352 if (exmode_active != EXMODE_NORMAL) 1353 cmdline_row = msg_row; 1354 } 1355 if (!msg_didany || lines_left < 0) 1356 msg_starthere(); 1357 if (msg_silent == 0) 1358 { 1359 msg_didout = FALSE; /* no output on current line yet */ 1360 cursor_off(); 1361 } 1362 1363 /* when redirecting, may need to start a new line. */ 1364 if (!did_return) 1365 redir_write((char_u *)"\n", -1); 1366 } 1367 1368 /* 1369 * Note that the current msg position is where messages start. 1370 */ 1371 void 1372 msg_starthere(void) 1373 { 1374 lines_left = cmdline_row; 1375 msg_didany = FALSE; 1376 } 1377 1378 void 1379 msg_putchar(int c) 1380 { 1381 msg_putchar_attr(c, 0); 1382 } 1383 1384 void 1385 msg_putchar_attr(int c, int attr) 1386 { 1387 char_u buf[MB_MAXBYTES + 1]; 1388 1389 if (IS_SPECIAL(c)) 1390 { 1391 buf[0] = K_SPECIAL; 1392 buf[1] = K_SECOND(c); 1393 buf[2] = K_THIRD(c); 1394 buf[3] = NUL; 1395 } 1396 else 1397 buf[(*mb_char2bytes)(c, buf)] = NUL; 1398 msg_puts_attr((char *)buf, attr); 1399 } 1400 1401 void 1402 msg_outnum(long n) 1403 { 1404 char buf[20]; 1405 1406 sprintf(buf, "%ld", n); 1407 msg_puts(buf); 1408 } 1409 1410 void 1411 msg_home_replace(char_u *fname) 1412 { 1413 msg_home_replace_attr(fname, 0); 1414 } 1415 1416 #if defined(FEAT_FIND_ID) || defined(PROTO) 1417 void 1418 msg_home_replace_hl(char_u *fname) 1419 { 1420 msg_home_replace_attr(fname, HL_ATTR(HLF_D)); 1421 } 1422 #endif 1423 1424 static void 1425 msg_home_replace_attr(char_u *fname, int attr) 1426 { 1427 char_u *name; 1428 1429 name = home_replace_save(NULL, fname); 1430 if (name != NULL) 1431 msg_outtrans_attr(name, attr); 1432 vim_free(name); 1433 } 1434 1435 /* 1436 * Output 'len' characters in 'str' (including NULs) with translation 1437 * if 'len' is -1, output upto a NUL character. 1438 * Use attributes 'attr'. 1439 * Return the number of characters it takes on the screen. 1440 */ 1441 int 1442 msg_outtrans(char_u *str) 1443 { 1444 return msg_outtrans_attr(str, 0); 1445 } 1446 1447 int 1448 msg_outtrans_attr(char_u *str, int attr) 1449 { 1450 return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); 1451 } 1452 1453 int 1454 msg_outtrans_len(char_u *str, int len) 1455 { 1456 return msg_outtrans_len_attr(str, len, 0); 1457 } 1458 1459 /* 1460 * Output one character at "p". Return pointer to the next character. 1461 * Handles multi-byte characters. 1462 */ 1463 char_u * 1464 msg_outtrans_one(char_u *p, int attr) 1465 { 1466 int l; 1467 1468 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 1469 { 1470 msg_outtrans_len_attr(p, l, attr); 1471 return p + l; 1472 } 1473 msg_puts_attr((char *)transchar_byte(*p), attr); 1474 return p + 1; 1475 } 1476 1477 int 1478 msg_outtrans_len_attr(char_u *msgstr, int len, int attr) 1479 { 1480 int retval = 0; 1481 char_u *str = msgstr; 1482 char_u *plain_start = msgstr; 1483 char_u *s; 1484 int mb_l; 1485 int c; 1486 1487 /* if MSG_HIST flag set, add message to history */ 1488 if (attr & MSG_HIST) 1489 { 1490 add_msg_hist(str, len, attr); 1491 attr &= ~MSG_HIST; 1492 } 1493 1494 /* If the string starts with a composing character first draw a space on 1495 * which the composing char can be drawn. */ 1496 if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) 1497 msg_puts_attr(" ", attr); 1498 1499 /* 1500 * Go over the string. Special characters are translated and printed. 1501 * Normal characters are printed several at a time. 1502 */ 1503 while (--len >= 0) 1504 { 1505 if (enc_utf8) 1506 /* Don't include composing chars after the end. */ 1507 mb_l = utfc_ptr2len_len(str, len + 1); 1508 else if (has_mbyte) 1509 mb_l = (*mb_ptr2len)(str); 1510 else 1511 mb_l = 1; 1512 if (has_mbyte && mb_l > 1) 1513 { 1514 c = (*mb_ptr2char)(str); 1515 if (vim_isprintc(c)) 1516 /* printable multi-byte char: count the cells. */ 1517 retval += (*mb_ptr2cells)(str); 1518 else 1519 { 1520 /* unprintable multi-byte char: print the printable chars so 1521 * far and the translation of the unprintable char. */ 1522 if (str > plain_start) 1523 msg_puts_attr_len((char *)plain_start, 1524 (int)(str - plain_start), attr); 1525 plain_start = str + mb_l; 1526 msg_puts_attr((char *)transchar(c), 1527 attr == 0 ? HL_ATTR(HLF_8) : attr); 1528 retval += char2cells(c); 1529 } 1530 len -= mb_l - 1; 1531 str += mb_l; 1532 } 1533 else 1534 { 1535 s = transchar_byte(*str); 1536 if (s[1] != NUL) 1537 { 1538 /* unprintable char: print the printable chars so far and the 1539 * translation of the unprintable char. */ 1540 if (str > plain_start) 1541 msg_puts_attr_len((char *)plain_start, 1542 (int)(str - plain_start), attr); 1543 plain_start = str + 1; 1544 msg_puts_attr((char *)s, attr == 0 ? HL_ATTR(HLF_8) : attr); 1545 retval += (int)STRLEN(s); 1546 } 1547 else 1548 ++retval; 1549 ++str; 1550 } 1551 } 1552 1553 if (str > plain_start) 1554 /* print the printable chars at the end */ 1555 msg_puts_attr_len((char *)plain_start, (int)(str - plain_start), attr); 1556 1557 return retval; 1558 } 1559 1560 #if defined(FEAT_QUICKFIX) || defined(PROTO) 1561 void 1562 msg_make(char_u *arg) 1563 { 1564 int i; 1565 static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB"; 1566 1567 arg = skipwhite(arg); 1568 for (i = 5; *arg && i >= 0; --i) 1569 if (*arg++ != str[i]) 1570 break; 1571 if (i < 0) 1572 { 1573 msg_putchar('\n'); 1574 for (i = 0; rs[i]; ++i) 1575 msg_putchar(rs[i] - 3); 1576 } 1577 } 1578 #endif 1579 1580 /* 1581 * Output the string 'str' upto a NUL character. 1582 * Return the number of characters it takes on the screen. 1583 * 1584 * If K_SPECIAL is encountered, then it is taken in conjunction with the 1585 * following character and shown as <F1>, <S-Up> etc. Any other character 1586 * which is not printable shown in <> form. 1587 * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>. 1588 * If a character is displayed in one of these special ways, is also 1589 * highlighted (its highlight name is '8' in the p_hl variable). 1590 * Otherwise characters are not highlighted. 1591 * This function is used to show mappings, where we want to see how to type 1592 * the character/string -- webb 1593 */ 1594 int 1595 msg_outtrans_special( 1596 char_u *strstart, 1597 int from) /* TRUE for lhs of a mapping */ 1598 { 1599 char_u *str = strstart; 1600 int retval = 0; 1601 char *text; 1602 int attr; 1603 int len; 1604 1605 attr = HL_ATTR(HLF_8); 1606 while (*str != NUL) 1607 { 1608 /* Leading and trailing spaces need to be displayed in <> form. */ 1609 if ((str == strstart || str[1] == NUL) && *str == ' ') 1610 { 1611 text = "<Space>"; 1612 ++str; 1613 } 1614 else 1615 text = (char *)str2special(&str, from); 1616 len = vim_strsize((char_u *)text); 1617 /* Highlight special keys */ 1618 msg_puts_attr(text, len > 1 1619 && (*mb_ptr2len)((char_u *)text) <= 1 ? attr : 0); 1620 retval += len; 1621 } 1622 return retval; 1623 } 1624 1625 #if defined(FEAT_EVAL) || defined(PROTO) 1626 /* 1627 * Return the lhs or rhs of a mapping, with the key codes turned into printable 1628 * strings, in an allocated string. 1629 */ 1630 char_u * 1631 str2special_save( 1632 char_u *str, 1633 int is_lhs) /* TRUE for lhs, FALSE for rhs */ 1634 { 1635 garray_T ga; 1636 char_u *p = str; 1637 1638 ga_init2(&ga, 1, 40); 1639 while (*p != NUL) 1640 ga_concat(&ga, str2special(&p, is_lhs)); 1641 ga_append(&ga, NUL); 1642 return (char_u *)ga.ga_data; 1643 } 1644 #endif 1645 1646 /* 1647 * Return the printable string for the key codes at "*sp". 1648 * Used for translating the lhs or rhs of a mapping to printable chars. 1649 * Advances "sp" to the next code. 1650 */ 1651 char_u * 1652 str2special( 1653 char_u **sp, 1654 int from) /* TRUE for lhs of mapping */ 1655 { 1656 int c; 1657 static char_u buf[7]; 1658 char_u *str = *sp; 1659 int modifiers = 0; 1660 int special = FALSE; 1661 1662 if (has_mbyte) 1663 { 1664 char_u *p; 1665 1666 /* Try to un-escape a multi-byte character. Return the un-escaped 1667 * string if it is a multi-byte character. */ 1668 p = mb_unescape(sp); 1669 if (p != NULL) 1670 return p; 1671 } 1672 1673 c = *str; 1674 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1675 { 1676 if (str[1] == KS_MODIFIER) 1677 { 1678 modifiers = str[2]; 1679 str += 3; 1680 c = *str; 1681 } 1682 if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL) 1683 { 1684 c = TO_SPECIAL(str[1], str[2]); 1685 str += 2; 1686 } 1687 if (IS_SPECIAL(c) || modifiers) /* special key */ 1688 special = TRUE; 1689 } 1690 1691 if (has_mbyte && !IS_SPECIAL(c)) 1692 { 1693 int len = (*mb_ptr2len)(str); 1694 1695 /* For multi-byte characters check for an illegal byte. */ 1696 if (has_mbyte && MB_BYTE2LEN(*str) > len) 1697 { 1698 transchar_nonprint(buf, c); 1699 *sp = str + 1; 1700 return buf; 1701 } 1702 /* Since 'special' is TRUE the multi-byte character 'c' will be 1703 * processed by get_special_key_name() */ 1704 c = (*mb_ptr2char)(str); 1705 *sp = str + len; 1706 } 1707 else 1708 *sp = str + 1; 1709 1710 /* Make unprintable characters in <> form, also <M-Space> and <Tab>. 1711 * Use <Space> only for lhs of a mapping. */ 1712 if (special || char2cells(c) > 1 || (from && c == ' ')) 1713 return get_special_key_name(c, modifiers); 1714 buf[0] = c; 1715 buf[1] = NUL; 1716 return buf; 1717 } 1718 1719 /* 1720 * Translate a key sequence into special key names. 1721 */ 1722 void 1723 str2specialbuf(char_u *sp, char_u *buf, int len) 1724 { 1725 char_u *s; 1726 1727 *buf = NUL; 1728 while (*sp) 1729 { 1730 s = str2special(&sp, FALSE); 1731 if ((int)(STRLEN(s) + STRLEN(buf)) < len) 1732 STRCAT(buf, s); 1733 } 1734 } 1735 1736 /* 1737 * print line for :print or :list command 1738 */ 1739 void 1740 msg_prt_line(char_u *s, int list) 1741 { 1742 int c; 1743 int col = 0; 1744 int n_extra = 0; 1745 int c_extra = 0; 1746 int c_final = 0; 1747 char_u *p_extra = NULL; /* init to make SASC shut up */ 1748 int n; 1749 int attr = 0; 1750 char_u *trail = NULL; 1751 int l; 1752 char_u buf[MB_MAXBYTES + 1]; 1753 1754 if (curwin->w_p_list) 1755 list = TRUE; 1756 1757 /* find start of trailing whitespace */ 1758 if (list && lcs_trail) 1759 { 1760 trail = s + STRLEN(s); 1761 while (trail > s && VIM_ISWHITE(trail[-1])) 1762 --trail; 1763 } 1764 1765 /* output a space for an empty line, otherwise the line will be 1766 * overwritten */ 1767 if (*s == NUL && !(list && lcs_eol != NUL)) 1768 msg_putchar(' '); 1769 1770 while (!got_int) 1771 { 1772 if (n_extra > 0) 1773 { 1774 --n_extra; 1775 if (n_extra == 0 && c_final) 1776 c = c_final; 1777 else if (c_extra) 1778 c = c_extra; 1779 else 1780 c = *p_extra++; 1781 } 1782 else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1) 1783 { 1784 col += (*mb_ptr2cells)(s); 1785 if (lcs_nbsp != NUL && list 1786 && (mb_ptr2char(s) == 160 1787 || mb_ptr2char(s) == 0x202f)) 1788 { 1789 mb_char2bytes(lcs_nbsp, buf); 1790 buf[(*mb_ptr2len)(buf)] = NUL; 1791 } 1792 else 1793 { 1794 mch_memmove(buf, s, (size_t)l); 1795 buf[l] = NUL; 1796 } 1797 msg_puts((char *)buf); 1798 s += l; 1799 continue; 1800 } 1801 else 1802 { 1803 attr = 0; 1804 c = *s++; 1805 if (c == TAB && (!list || lcs_tab1)) 1806 { 1807 /* tab amount depends on current column */ 1808 #ifdef FEAT_VARTABS 1809 n_extra = tabstop_padding(col, curbuf->b_p_ts, 1810 curbuf->b_p_vts_array) - 1; 1811 #else 1812 n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1; 1813 #endif 1814 if (!list) 1815 { 1816 c = ' '; 1817 c_extra = ' '; 1818 c_final = NUL; 1819 } 1820 else 1821 { 1822 c = (n_extra == 0 && lcs_tab3) ? lcs_tab3 : lcs_tab1; 1823 c_extra = lcs_tab2; 1824 c_final = lcs_tab3; 1825 attr = HL_ATTR(HLF_8); 1826 } 1827 } 1828 else if (c == 160 && list && lcs_nbsp != NUL) 1829 { 1830 c = lcs_nbsp; 1831 attr = HL_ATTR(HLF_8); 1832 } 1833 else if (c == NUL && list && lcs_eol != NUL) 1834 { 1835 p_extra = (char_u *)""; 1836 c_extra = NUL; 1837 c_final = NUL; 1838 n_extra = 1; 1839 c = lcs_eol; 1840 attr = HL_ATTR(HLF_AT); 1841 --s; 1842 } 1843 else if (c != NUL && (n = byte2cells(c)) > 1) 1844 { 1845 n_extra = n - 1; 1846 p_extra = transchar_byte(c); 1847 c_extra = NUL; 1848 c_final = NUL; 1849 c = *p_extra++; 1850 /* Use special coloring to be able to distinguish <hex> from 1851 * the same in plain text. */ 1852 attr = HL_ATTR(HLF_8); 1853 } 1854 else if (c == ' ' && trail != NULL && s > trail) 1855 { 1856 c = lcs_trail; 1857 attr = HL_ATTR(HLF_8); 1858 } 1859 else if (c == ' ' && list && lcs_space != NUL) 1860 { 1861 c = lcs_space; 1862 attr = HL_ATTR(HLF_8); 1863 } 1864 } 1865 1866 if (c == NUL) 1867 break; 1868 1869 msg_putchar_attr(c, attr); 1870 col++; 1871 } 1872 msg_clr_eos(); 1873 } 1874 1875 /* 1876 * Use screen_puts() to output one multi-byte character. 1877 * Return the pointer "s" advanced to the next character. 1878 */ 1879 static char_u * 1880 screen_puts_mbyte(char_u *s, int l, int attr) 1881 { 1882 int cw; 1883 1884 msg_didout = TRUE; /* remember that line is not empty */ 1885 cw = (*mb_ptr2cells)(s); 1886 if (cw > 1 && ( 1887 #ifdef FEAT_RIGHTLEFT 1888 cmdmsg_rl ? msg_col <= 1 : 1889 #endif 1890 msg_col == Columns - 1)) 1891 { 1892 /* Doesn't fit, print a highlighted '>' to fill it up. */ 1893 msg_screen_putchar('>', HL_ATTR(HLF_AT)); 1894 return s; 1895 } 1896 1897 screen_puts_len(s, l, msg_row, msg_col, attr); 1898 #ifdef FEAT_RIGHTLEFT 1899 if (cmdmsg_rl) 1900 { 1901 msg_col -= cw; 1902 if (msg_col == 0) 1903 { 1904 msg_col = Columns; 1905 ++msg_row; 1906 } 1907 } 1908 else 1909 #endif 1910 { 1911 msg_col += cw; 1912 if (msg_col >= Columns) 1913 { 1914 msg_col = 0; 1915 ++msg_row; 1916 } 1917 } 1918 return s + l; 1919 } 1920 1921 /* 1922 * Output a string to the screen at position msg_row, msg_col. 1923 * Update msg_row and msg_col for the next message. 1924 */ 1925 void 1926 msg_puts(char *s) 1927 { 1928 msg_puts_attr(s, 0); 1929 } 1930 1931 void 1932 msg_puts_title(char *s) 1933 { 1934 msg_puts_attr(s, HL_ATTR(HLF_T)); 1935 } 1936 1937 /* 1938 * Show a message in such a way that it always fits in the line. Cut out a 1939 * part in the middle and replace it with "..." when necessary. 1940 * Does not handle multi-byte characters! 1941 */ 1942 void 1943 msg_outtrans_long_attr(char_u *longstr, int attr) 1944 { 1945 msg_outtrans_long_len_attr(longstr, (int)STRLEN(longstr), attr); 1946 } 1947 1948 void 1949 msg_outtrans_long_len_attr(char_u *longstr, int len, int attr) 1950 { 1951 int slen = len; 1952 int room; 1953 1954 room = Columns - msg_col; 1955 if (len > room && room >= 20) 1956 { 1957 slen = (room - 3) / 2; 1958 msg_outtrans_len_attr(longstr, slen, attr); 1959 msg_puts_attr("...", HL_ATTR(HLF_8)); 1960 } 1961 msg_outtrans_len_attr(longstr + len - slen, slen, attr); 1962 } 1963 1964 /* 1965 * Basic function for writing a message with highlight attributes. 1966 */ 1967 void 1968 msg_puts_attr(char *s, int attr) 1969 { 1970 msg_puts_attr_len(s, -1, attr); 1971 } 1972 1973 /* 1974 * Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes). 1975 * When "maxlen" is -1 there is no maximum length. 1976 * When "maxlen" is >= 0 the message is not put in the history. 1977 */ 1978 static void 1979 msg_puts_attr_len(char *str, int maxlen, int attr) 1980 { 1981 /* 1982 * If redirection is on, also write to the redirection file. 1983 */ 1984 redir_write((char_u *)str, maxlen); 1985 1986 /* 1987 * Don't print anything when using ":silent cmd". 1988 */ 1989 if (msg_silent != 0) 1990 return; 1991 1992 /* if MSG_HIST flag set, add message to history */ 1993 if ((attr & MSG_HIST) && maxlen < 0) 1994 { 1995 add_msg_hist((char_u *)str, -1, attr); 1996 attr &= ~MSG_HIST; 1997 } 1998 1999 /* 2000 * When writing something to the screen after it has scrolled, requires a 2001 * wait-return prompt later. Needed when scrolling, resetting 2002 * need_wait_return after some prompt, and then outputting something 2003 * without scrolling 2004 */ 2005 if (msg_scrolled != 0 && !msg_scrolled_ign) 2006 need_wait_return = TRUE; 2007 msg_didany = TRUE; /* remember that something was outputted */ 2008 2009 /* 2010 * If there is no valid screen, use fprintf so we can see error messages. 2011 * If termcap is not active, we may be writing in an alternate console 2012 * window, cursor positioning may not work correctly (window size may be 2013 * different, e.g. for Win32 console) or we just don't know where the 2014 * cursor is. 2015 */ 2016 if (msg_use_printf()) 2017 msg_puts_printf((char_u *)str, maxlen); 2018 else 2019 msg_puts_display((char_u *)str, maxlen, attr, FALSE); 2020 } 2021 2022 /* 2023 * The display part of msg_puts_attr_len(). 2024 * May be called recursively to display scroll-back text. 2025 */ 2026 static void 2027 msg_puts_display( 2028 char_u *str, 2029 int maxlen, 2030 int attr, 2031 int recurse) 2032 { 2033 char_u *s = str; 2034 char_u *t_s = str; /* string from "t_s" to "s" is still todo */ 2035 int t_col = 0; /* screen cells todo, 0 when "t_s" not used */ 2036 int l; 2037 int cw; 2038 char_u *sb_str = str; 2039 int sb_col = msg_col; 2040 int wrap; 2041 int did_last_char; 2042 2043 did_wait_return = FALSE; 2044 while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL) 2045 { 2046 /* 2047 * We are at the end of the screen line when: 2048 * - When outputting a newline. 2049 * - When outputting a character in the last column. 2050 */ 2051 if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || ( 2052 #ifdef FEAT_RIGHTLEFT 2053 cmdmsg_rl 2054 ? ( 2055 msg_col <= 1 2056 || (*s == TAB && msg_col <= 7) 2057 || (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2)) 2058 : 2059 #endif 2060 (msg_col + t_col >= Columns - 1 2061 || (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7)) 2062 || (has_mbyte && (*mb_ptr2cells)(s) > 1 2063 && msg_col + t_col >= Columns - 2))))) 2064 { 2065 /* 2066 * The screen is scrolled up when at the last row (some terminals 2067 * scroll automatically, some don't. To avoid problems we scroll 2068 * ourselves). 2069 */ 2070 if (t_col > 0) 2071 /* output postponed text */ 2072 t_puts(&t_col, t_s, s, attr); 2073 2074 /* When no more prompt and no more room, truncate here */ 2075 if (msg_no_more && lines_left == 0) 2076 break; 2077 2078 /* Scroll the screen up one line. */ 2079 msg_scroll_up(); 2080 2081 msg_row = Rows - 2; 2082 if (msg_col >= Columns) /* can happen after screen resize */ 2083 msg_col = Columns - 1; 2084 2085 /* Display char in last column before showing more-prompt. */ 2086 if (*s >= ' ' 2087 #ifdef FEAT_RIGHTLEFT 2088 && !cmdmsg_rl 2089 #endif 2090 ) 2091 { 2092 if (has_mbyte) 2093 { 2094 if (enc_utf8 && maxlen >= 0) 2095 /* avoid including composing chars after the end */ 2096 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2097 else 2098 l = (*mb_ptr2len)(s); 2099 s = screen_puts_mbyte(s, l, attr); 2100 } 2101 else 2102 msg_screen_putchar(*s++, attr); 2103 did_last_char = TRUE; 2104 } 2105 else 2106 did_last_char = FALSE; 2107 2108 if (p_more) 2109 /* store text for scrolling back */ 2110 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2111 2112 inc_msg_scrolled(); 2113 need_wait_return = TRUE; /* may need wait_return in main() */ 2114 redraw_cmdline = TRUE; 2115 if (cmdline_row > 0 && !exmode_active) 2116 --cmdline_row; 2117 2118 /* 2119 * If screen is completely filled and 'more' is set then wait 2120 * for a character. 2121 */ 2122 if (lines_left > 0) 2123 --lines_left; 2124 if (p_more && lines_left == 0 && State != HITRETURN 2125 && !msg_no_more && !exmode_active) 2126 { 2127 #ifdef FEAT_CON_DIALOG 2128 if (do_more_prompt(NUL)) 2129 s = confirm_msg_tail; 2130 #else 2131 (void)do_more_prompt(NUL); 2132 #endif 2133 if (quit_more) 2134 return; 2135 } 2136 2137 /* When we displayed a char in last column need to check if there 2138 * is still more. */ 2139 if (did_last_char) 2140 continue; 2141 } 2142 2143 wrap = *s == '\n' 2144 || msg_col + t_col >= Columns 2145 || (has_mbyte && (*mb_ptr2cells)(s) > 1 2146 && msg_col + t_col >= Columns - 1); 2147 if (t_col > 0 && (wrap || *s == '\r' || *s == '\b' 2148 || *s == '\t' || *s == BELL)) 2149 /* output any postponed text */ 2150 t_puts(&t_col, t_s, s, attr); 2151 2152 if (wrap && p_more && !recurse) 2153 /* store text for scrolling back */ 2154 store_sb_text(&sb_str, s, attr, &sb_col, TRUE); 2155 2156 if (*s == '\n') /* go to next line */ 2157 { 2158 msg_didout = FALSE; /* remember that line is empty */ 2159 #ifdef FEAT_RIGHTLEFT 2160 if (cmdmsg_rl) 2161 msg_col = Columns - 1; 2162 else 2163 #endif 2164 msg_col = 0; 2165 if (++msg_row >= Rows) /* safety check */ 2166 msg_row = Rows - 1; 2167 } 2168 else if (*s == '\r') /* go to column 0 */ 2169 { 2170 msg_col = 0; 2171 } 2172 else if (*s == '\b') /* go to previous char */ 2173 { 2174 if (msg_col) 2175 --msg_col; 2176 } 2177 else if (*s == TAB) /* translate Tab into spaces */ 2178 { 2179 do 2180 msg_screen_putchar(' ', attr); 2181 while (msg_col & 7); 2182 } 2183 else if (*s == BELL) /* beep (from ":sh") */ 2184 vim_beep(BO_SH); 2185 else 2186 { 2187 if (has_mbyte) 2188 { 2189 cw = (*mb_ptr2cells)(s); 2190 if (enc_utf8 && maxlen >= 0) 2191 /* avoid including composing chars after the end */ 2192 l = utfc_ptr2len_len(s, (int)((str + maxlen) - s)); 2193 else 2194 l = (*mb_ptr2len)(s); 2195 } 2196 else 2197 { 2198 cw = 1; 2199 l = 1; 2200 } 2201 2202 /* When drawing from right to left or when a double-wide character 2203 * doesn't fit, draw a single character here. Otherwise collect 2204 * characters and draw them all at once later. */ 2205 if ( 2206 # ifdef FEAT_RIGHTLEFT 2207 cmdmsg_rl || 2208 # endif 2209 (cw > 1 && msg_col + t_col >= Columns - 1)) 2210 { 2211 if (l > 1) 2212 s = screen_puts_mbyte(s, l, attr) - 1; 2213 else 2214 msg_screen_putchar(*s, attr); 2215 } 2216 else 2217 { 2218 /* postpone this character until later */ 2219 if (t_col == 0) 2220 t_s = s; 2221 t_col += cw; 2222 s += l - 1; 2223 } 2224 } 2225 ++s; 2226 } 2227 2228 /* output any postponed text */ 2229 if (t_col > 0) 2230 t_puts(&t_col, t_s, s, attr); 2231 if (p_more && !recurse) 2232 store_sb_text(&sb_str, s, attr, &sb_col, FALSE); 2233 2234 msg_check(); 2235 } 2236 2237 /* 2238 * Return TRUE when ":filter pattern" was used and "msg" does not match 2239 * "pattern". 2240 */ 2241 int 2242 message_filtered(char_u *msg) 2243 { 2244 int match; 2245 2246 if (cmdmod.filter_regmatch.regprog == NULL) 2247 return FALSE; 2248 match = vim_regexec(&cmdmod.filter_regmatch, msg, (colnr_T)0); 2249 return cmdmod.filter_force ? match : !match; 2250 } 2251 2252 /* 2253 * Scroll the screen up one line for displaying the next message line. 2254 */ 2255 static void 2256 msg_scroll_up(void) 2257 { 2258 #ifdef FEAT_GUI 2259 /* Remove the cursor before scrolling, ScreenLines[] is going 2260 * to become invalid. */ 2261 if (gui.in_use) 2262 gui_undraw_cursor(); 2263 #endif 2264 /* scrolling up always works */ 2265 mch_disable_flush(); 2266 screen_del_lines(0, 0, 1, (int)Rows, TRUE, 0, NULL); 2267 mch_enable_flush(); 2268 2269 if (!can_clear((char_u *)" ")) 2270 { 2271 /* Scrolling up doesn't result in the right background. Set the 2272 * background here. It's not efficient, but avoids that we have to do 2273 * it all over the code. */ 2274 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2275 2276 /* Also clear the last char of the last but one line if it was not 2277 * cleared before to avoid a scroll-up. */ 2278 if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1] == (sattr_T)-1) 2279 screen_fill((int)Rows - 2, (int)Rows - 1, 2280 (int)Columns - 1, (int)Columns, ' ', ' ', 0); 2281 } 2282 } 2283 2284 /* 2285 * Increment "msg_scrolled". 2286 */ 2287 static void 2288 inc_msg_scrolled(void) 2289 { 2290 #ifdef FEAT_EVAL 2291 if (*get_vim_var_str(VV_SCROLLSTART) == NUL) 2292 { 2293 char_u *p = sourcing_name; 2294 char_u *tofree = NULL; 2295 int len; 2296 2297 /* v:scrollstart is empty, set it to the script/function name and line 2298 * number */ 2299 if (p == NULL) 2300 p = (char_u *)_("Unknown"); 2301 else 2302 { 2303 len = (int)STRLEN(p) + 40; 2304 tofree = alloc(len); 2305 if (tofree != NULL) 2306 { 2307 vim_snprintf((char *)tofree, len, _("%s line %ld"), 2308 p, (long)sourcing_lnum); 2309 p = tofree; 2310 } 2311 } 2312 set_vim_var_string(VV_SCROLLSTART, p, -1); 2313 vim_free(tofree); 2314 } 2315 #endif 2316 ++msg_scrolled; 2317 if (must_redraw < VALID) 2318 must_redraw = VALID; 2319 } 2320 2321 /* 2322 * To be able to scroll back at the "more" and "hit-enter" prompts we need to 2323 * store the displayed text and remember where screen lines start. 2324 */ 2325 typedef struct msgchunk_S msgchunk_T; 2326 struct msgchunk_S 2327 { 2328 msgchunk_T *sb_next; 2329 msgchunk_T *sb_prev; 2330 char sb_eol; /* TRUE when line ends after this text */ 2331 int sb_msg_col; /* column in which text starts */ 2332 int sb_attr; /* text attributes */ 2333 char_u sb_text[1]; /* text to be displayed, actually longer */ 2334 }; 2335 2336 static msgchunk_T *last_msgchunk = NULL; /* last displayed text */ 2337 2338 static msgchunk_T *msg_sb_start(msgchunk_T *mps); 2339 2340 typedef enum { 2341 SB_CLEAR_NONE = 0, 2342 SB_CLEAR_ALL, 2343 SB_CLEAR_CMDLINE_BUSY, 2344 SB_CLEAR_CMDLINE_DONE 2345 } sb_clear_T; 2346 2347 /* When to clear text on next msg. */ 2348 static sb_clear_T do_clear_sb_text = SB_CLEAR_NONE; 2349 2350 /* 2351 * Store part of a printed message for displaying when scrolling back. 2352 */ 2353 static void 2354 store_sb_text( 2355 char_u **sb_str, /* start of string */ 2356 char_u *s, /* just after string */ 2357 int attr, 2358 int *sb_col, 2359 int finish) /* line ends */ 2360 { 2361 msgchunk_T *mp; 2362 2363 if (do_clear_sb_text == SB_CLEAR_ALL 2364 || do_clear_sb_text == SB_CLEAR_CMDLINE_DONE) 2365 { 2366 clear_sb_text(do_clear_sb_text == SB_CLEAR_ALL); 2367 do_clear_sb_text = SB_CLEAR_NONE; 2368 } 2369 2370 if (s > *sb_str) 2371 { 2372 mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str))); 2373 if (mp != NULL) 2374 { 2375 mp->sb_eol = finish; 2376 mp->sb_msg_col = *sb_col; 2377 mp->sb_attr = attr; 2378 vim_strncpy(mp->sb_text, *sb_str, s - *sb_str); 2379 2380 if (last_msgchunk == NULL) 2381 { 2382 last_msgchunk = mp; 2383 mp->sb_prev = NULL; 2384 } 2385 else 2386 { 2387 mp->sb_prev = last_msgchunk; 2388 last_msgchunk->sb_next = mp; 2389 last_msgchunk = mp; 2390 } 2391 mp->sb_next = NULL; 2392 } 2393 } 2394 else if (finish && last_msgchunk != NULL) 2395 last_msgchunk->sb_eol = TRUE; 2396 2397 *sb_str = s; 2398 *sb_col = 0; 2399 } 2400 2401 /* 2402 * Finished showing messages, clear the scroll-back text on the next message. 2403 */ 2404 void 2405 may_clear_sb_text(void) 2406 { 2407 do_clear_sb_text = SB_CLEAR_ALL; 2408 } 2409 2410 /* 2411 * Starting to edit the command line, do not clear messages now. 2412 */ 2413 void 2414 sb_text_start_cmdline(void) 2415 { 2416 do_clear_sb_text = SB_CLEAR_CMDLINE_BUSY; 2417 msg_sb_eol(); 2418 } 2419 2420 /* 2421 * Ending to edit the command line. Clear old lines but the last one later. 2422 */ 2423 void 2424 sb_text_end_cmdline(void) 2425 { 2426 do_clear_sb_text = SB_CLEAR_CMDLINE_DONE; 2427 } 2428 2429 /* 2430 * Clear any text remembered for scrolling back. 2431 * When "all" is FALSE keep the last line. 2432 * Called when redrawing the screen. 2433 */ 2434 void 2435 clear_sb_text(int all) 2436 { 2437 msgchunk_T *mp; 2438 msgchunk_T **lastp; 2439 2440 if (all) 2441 lastp = &last_msgchunk; 2442 else 2443 { 2444 if (last_msgchunk == NULL) 2445 return; 2446 lastp = &last_msgchunk->sb_prev; 2447 } 2448 2449 while (*lastp != NULL) 2450 { 2451 mp = (*lastp)->sb_prev; 2452 vim_free(*lastp); 2453 *lastp = mp; 2454 } 2455 } 2456 2457 /* 2458 * "g<" command. 2459 */ 2460 void 2461 show_sb_text(void) 2462 { 2463 msgchunk_T *mp; 2464 2465 /* Only show something if there is more than one line, otherwise it looks 2466 * weird, typing a command without output results in one line. */ 2467 mp = msg_sb_start(last_msgchunk); 2468 if (mp == NULL || mp->sb_prev == NULL) 2469 vim_beep(BO_MESS); 2470 else 2471 { 2472 do_more_prompt('G'); 2473 wait_return(FALSE); 2474 } 2475 } 2476 2477 /* 2478 * Move to the start of screen line in already displayed text. 2479 */ 2480 static msgchunk_T * 2481 msg_sb_start(msgchunk_T *mps) 2482 { 2483 msgchunk_T *mp = mps; 2484 2485 while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol) 2486 mp = mp->sb_prev; 2487 return mp; 2488 } 2489 2490 /* 2491 * Mark the last message chunk as finishing the line. 2492 */ 2493 void 2494 msg_sb_eol(void) 2495 { 2496 if (last_msgchunk != NULL) 2497 last_msgchunk->sb_eol = TRUE; 2498 } 2499 2500 /* 2501 * Display a screen line from previously displayed text at row "row". 2502 * Returns a pointer to the text for the next line (can be NULL). 2503 */ 2504 static msgchunk_T * 2505 disp_sb_line(int row, msgchunk_T *smp) 2506 { 2507 msgchunk_T *mp = smp; 2508 char_u *p; 2509 2510 for (;;) 2511 { 2512 msg_row = row; 2513 msg_col = mp->sb_msg_col; 2514 p = mp->sb_text; 2515 if (*p == '\n') /* don't display the line break */ 2516 ++p; 2517 msg_puts_display(p, -1, mp->sb_attr, TRUE); 2518 if (mp->sb_eol || mp->sb_next == NULL) 2519 break; 2520 mp = mp->sb_next; 2521 } 2522 return mp->sb_next; 2523 } 2524 2525 /* 2526 * Output any postponed text for msg_puts_attr_len(). 2527 */ 2528 static void 2529 t_puts( 2530 int *t_col, 2531 char_u *t_s, 2532 char_u *s, 2533 int attr) 2534 { 2535 /* output postponed text */ 2536 msg_didout = TRUE; /* remember that line is not empty */ 2537 screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr); 2538 msg_col += *t_col; 2539 *t_col = 0; 2540 /* If the string starts with a composing character don't increment the 2541 * column position for it. */ 2542 if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s))) 2543 --msg_col; 2544 if (msg_col >= Columns) 2545 { 2546 msg_col = 0; 2547 ++msg_row; 2548 } 2549 } 2550 2551 /* 2552 * Returns TRUE when messages should be printed with mch_errmsg(). 2553 * This is used when there is no valid screen, so we can see error messages. 2554 * If termcap is not active, we may be writing in an alternate console 2555 * window, cursor positioning may not work correctly (window size may be 2556 * different, e.g. for Win32 console) or we just don't know where the 2557 * cursor is. 2558 */ 2559 int 2560 msg_use_printf(void) 2561 { 2562 return (!msg_check_screen() 2563 #if defined(MSWIN) && !defined(FEAT_GUI_MSWIN) 2564 || !termcap_active 2565 #endif 2566 || (swapping_screen() && !termcap_active) 2567 ); 2568 } 2569 2570 /* 2571 * Print a message when there is no valid screen. 2572 */ 2573 static void 2574 msg_puts_printf(char_u *str, int maxlen) 2575 { 2576 char_u *s = str; 2577 char_u *buf = NULL; 2578 char_u *p = s; 2579 2580 #ifdef MSWIN 2581 if (!(silent_mode && p_verbose == 0)) 2582 mch_settmode(TMODE_COOK); /* handle CR and NL correctly */ 2583 #endif 2584 while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL) 2585 { 2586 if (!(silent_mode && p_verbose == 0)) 2587 { 2588 // NL --> CR NL translation (for Unix, not for "--version") 2589 if (*s == NL) 2590 { 2591 int n = (int)(s - p); 2592 2593 buf = alloc(n + 3); 2594 memcpy(buf, p, n); 2595 if (!info_message) 2596 buf[n++] = CAR; 2597 buf[n++] = NL; 2598 buf[n++] = NUL; 2599 if (info_message) // informative message, not an error 2600 mch_msg((char *)buf); 2601 else 2602 mch_errmsg((char *)buf); 2603 vim_free(buf); 2604 p = s + 1; 2605 } 2606 } 2607 2608 // primitive way to compute the current column 2609 #ifdef FEAT_RIGHTLEFT 2610 if (cmdmsg_rl) 2611 { 2612 if (*s == CAR || *s == NL) 2613 msg_col = Columns - 1; 2614 else 2615 --msg_col; 2616 } 2617 else 2618 #endif 2619 { 2620 if (*s == CAR || *s == NL) 2621 msg_col = 0; 2622 else 2623 ++msg_col; 2624 } 2625 ++s; 2626 } 2627 2628 if (*p != NUL && !(silent_mode && p_verbose == 0)) 2629 { 2630 int c = -1; 2631 2632 if (maxlen > 0 && STRLEN(p) > (size_t)maxlen) 2633 { 2634 c = p[maxlen]; 2635 p[maxlen] = 0; 2636 } 2637 if (info_message) 2638 mch_msg((char *)p); 2639 else 2640 mch_errmsg((char *)p); 2641 if (c != -1) 2642 p[maxlen] = c; 2643 } 2644 2645 msg_didout = TRUE; // assume that line is not empty 2646 2647 #ifdef MSWIN 2648 if (!(silent_mode && p_verbose == 0)) 2649 mch_settmode(TMODE_RAW); 2650 #endif 2651 } 2652 2653 /* 2654 * Show the more-prompt and handle the user response. 2655 * This takes care of scrolling back and displaying previously displayed text. 2656 * When at hit-enter prompt "typed_char" is the already typed character, 2657 * otherwise it's NUL. 2658 * Returns TRUE when jumping ahead to "confirm_msg_tail". 2659 */ 2660 static int 2661 do_more_prompt(int typed_char) 2662 { 2663 static int entered = FALSE; 2664 int used_typed_char = typed_char; 2665 int oldState = State; 2666 int c; 2667 #ifdef FEAT_CON_DIALOG 2668 int retval = FALSE; 2669 #endif 2670 int toscroll; 2671 msgchunk_T *mp_last = NULL; 2672 msgchunk_T *mp; 2673 int i; 2674 2675 /* We get called recursively when a timer callback outputs a message. In 2676 * that case don't show another prompt. Also when at the hit-Enter prompt 2677 * and nothing was typed. */ 2678 if (entered || (State == HITRETURN && typed_char == 0)) 2679 return FALSE; 2680 entered = TRUE; 2681 2682 if (typed_char == 'G') 2683 { 2684 /* "g<": Find first line on the last page. */ 2685 mp_last = msg_sb_start(last_msgchunk); 2686 for (i = 0; i < Rows - 2 && mp_last != NULL 2687 && mp_last->sb_prev != NULL; ++i) 2688 mp_last = msg_sb_start(mp_last->sb_prev); 2689 } 2690 2691 State = ASKMORE; 2692 #ifdef FEAT_MOUSE 2693 setmouse(); 2694 #endif 2695 if (typed_char == NUL) 2696 msg_moremsg(FALSE); 2697 for (;;) 2698 { 2699 /* 2700 * Get a typed character directly from the user. 2701 */ 2702 if (used_typed_char != NUL) 2703 { 2704 c = used_typed_char; /* was typed at hit-enter prompt */ 2705 used_typed_char = NUL; 2706 } 2707 else 2708 c = get_keystroke(); 2709 2710 #if defined(FEAT_MENU) && defined(FEAT_GUI) 2711 if (c == K_MENU) 2712 { 2713 int idx = get_menu_index(current_menu, ASKMORE); 2714 2715 /* Used a menu. If it starts with CTRL-Y, it must 2716 * be a "Copy" for the clipboard. Otherwise 2717 * assume that we end */ 2718 if (idx == MENU_INDEX_INVALID) 2719 continue; 2720 c = *current_menu->strings[idx]; 2721 if (c != NUL && current_menu->strings[idx][1] != NUL) 2722 ins_typebuf(current_menu->strings[idx] + 1, 2723 current_menu->noremap[idx], 0, TRUE, 2724 current_menu->silent[idx]); 2725 } 2726 #endif 2727 2728 toscroll = 0; 2729 switch (c) 2730 { 2731 case BS: /* scroll one line back */ 2732 case K_BS: 2733 case 'k': 2734 case K_UP: 2735 toscroll = -1; 2736 break; 2737 2738 case CAR: /* one extra line */ 2739 case NL: 2740 case 'j': 2741 case K_DOWN: 2742 toscroll = 1; 2743 break; 2744 2745 case 'u': /* Up half a page */ 2746 toscroll = -(Rows / 2); 2747 break; 2748 2749 case 'd': /* Down half a page */ 2750 toscroll = Rows / 2; 2751 break; 2752 2753 case 'b': /* one page back */ 2754 case K_PAGEUP: 2755 toscroll = -(Rows - 1); 2756 break; 2757 2758 case ' ': /* one extra page */ 2759 case 'f': 2760 case K_PAGEDOWN: 2761 case K_LEFTMOUSE: 2762 toscroll = Rows - 1; 2763 break; 2764 2765 case 'g': /* all the way back to the start */ 2766 toscroll = -999999; 2767 break; 2768 2769 case 'G': /* all the way to the end */ 2770 toscroll = 999999; 2771 lines_left = 999999; 2772 break; 2773 2774 case ':': /* start new command line */ 2775 #ifdef FEAT_CON_DIALOG 2776 if (!confirm_msg_used) 2777 #endif 2778 { 2779 /* Since got_int is set all typeahead will be flushed, but we 2780 * want to keep this ':', remember that in a special way. */ 2781 typeahead_noflush(':'); 2782 #ifdef FEAT_TERMINAL 2783 skip_term_loop = TRUE; 2784 #endif 2785 cmdline_row = Rows - 1; /* put ':' on this line */ 2786 skip_redraw = TRUE; /* skip redraw once */ 2787 need_wait_return = FALSE; /* don't wait in main() */ 2788 } 2789 /* FALLTHROUGH */ 2790 case 'q': /* quit */ 2791 case Ctrl_C: 2792 case ESC: 2793 #ifdef FEAT_CON_DIALOG 2794 if (confirm_msg_used) 2795 { 2796 /* Jump to the choices of the dialog. */ 2797 retval = TRUE; 2798 } 2799 else 2800 #endif 2801 { 2802 got_int = TRUE; 2803 quit_more = TRUE; 2804 } 2805 /* When there is some more output (wrapping line) display that 2806 * without another prompt. */ 2807 lines_left = Rows - 1; 2808 break; 2809 2810 #ifdef FEAT_CLIPBOARD 2811 case Ctrl_Y: 2812 /* Strange way to allow copying (yanking) a modeless 2813 * selection at the more prompt. Use CTRL-Y, 2814 * because the same is used in Cmdline-mode and at the 2815 * hit-enter prompt. However, scrolling one line up 2816 * might be expected... */ 2817 if (clip_star.state == SELECT_DONE) 2818 clip_copy_modeless_selection(TRUE); 2819 continue; 2820 #endif 2821 default: /* no valid response */ 2822 msg_moremsg(TRUE); 2823 continue; 2824 } 2825 2826 if (toscroll != 0) 2827 { 2828 if (toscroll < 0) 2829 { 2830 /* go to start of last line */ 2831 if (mp_last == NULL) 2832 mp = msg_sb_start(last_msgchunk); 2833 else if (mp_last->sb_prev != NULL) 2834 mp = msg_sb_start(mp_last->sb_prev); 2835 else 2836 mp = NULL; 2837 2838 /* go to start of line at top of the screen */ 2839 for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL; 2840 ++i) 2841 mp = msg_sb_start(mp->sb_prev); 2842 2843 if (mp != NULL && mp->sb_prev != NULL) 2844 { 2845 /* Find line to be displayed at top. */ 2846 for (i = 0; i > toscroll; --i) 2847 { 2848 if (mp == NULL || mp->sb_prev == NULL) 2849 break; 2850 mp = msg_sb_start(mp->sb_prev); 2851 if (mp_last == NULL) 2852 mp_last = msg_sb_start(last_msgchunk); 2853 else 2854 mp_last = msg_sb_start(mp_last->sb_prev); 2855 } 2856 2857 if (toscroll == -1 && screen_ins_lines(0, 0, 1, 2858 (int)Rows, 0, NULL) == OK) 2859 { 2860 /* display line at top */ 2861 (void)disp_sb_line(0, mp); 2862 } 2863 else 2864 { 2865 /* redisplay all lines */ 2866 screenclear(); 2867 for (i = 0; mp != NULL && i < Rows - 1; ++i) 2868 { 2869 mp = disp_sb_line(i, mp); 2870 ++msg_scrolled; 2871 } 2872 } 2873 toscroll = 0; 2874 } 2875 } 2876 else 2877 { 2878 /* First display any text that we scrolled back. */ 2879 while (toscroll > 0 && mp_last != NULL) 2880 { 2881 /* scroll up, display line at bottom */ 2882 msg_scroll_up(); 2883 inc_msg_scrolled(); 2884 screen_fill((int)Rows - 2, (int)Rows - 1, 0, 2885 (int)Columns, ' ', ' ', 0); 2886 mp_last = disp_sb_line((int)Rows - 2, mp_last); 2887 --toscroll; 2888 } 2889 } 2890 2891 if (toscroll <= 0) 2892 { 2893 /* displayed the requested text, more prompt again */ 2894 screen_fill((int)Rows - 1, (int)Rows, 0, 2895 (int)Columns, ' ', ' ', 0); 2896 msg_moremsg(FALSE); 2897 continue; 2898 } 2899 2900 /* display more text, return to caller */ 2901 lines_left = toscroll; 2902 } 2903 2904 break; 2905 } 2906 2907 /* clear the --more-- message */ 2908 screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 2909 State = oldState; 2910 #ifdef FEAT_MOUSE 2911 setmouse(); 2912 #endif 2913 if (quit_more) 2914 { 2915 msg_row = Rows - 1; 2916 msg_col = 0; 2917 } 2918 #ifdef FEAT_RIGHTLEFT 2919 else if (cmdmsg_rl) 2920 msg_col = Columns - 1; 2921 #endif 2922 2923 entered = FALSE; 2924 #ifdef FEAT_CON_DIALOG 2925 return retval; 2926 #else 2927 return FALSE; 2928 #endif 2929 } 2930 2931 #if defined(USE_MCH_ERRMSG) || defined(PROTO) 2932 2933 #ifdef mch_errmsg 2934 # undef mch_errmsg 2935 #endif 2936 #ifdef mch_msg 2937 # undef mch_msg 2938 #endif 2939 2940 /* 2941 * Give an error message. To be used when the screen hasn't been initialized 2942 * yet. When stderr can't be used, collect error messages until the GUI has 2943 * started and they can be displayed in a message box. 2944 */ 2945 void 2946 mch_errmsg(char *str) 2947 { 2948 #if defined(MSWIN) && !defined(FEAT_GUI_MSWIN) 2949 int len = (int)STRLEN(str); 2950 DWORD nwrite = 0; 2951 DWORD mode = 0; 2952 HANDLE h = GetStdHandle(STD_ERROR_HANDLE); 2953 2954 if (GetConsoleMode(h, &mode) && enc_codepage >= 0 2955 && (int)GetConsoleCP() != enc_codepage) 2956 { 2957 WCHAR *w = enc_to_utf16((char_u *)str, &len); 2958 2959 WriteConsoleW(h, w, len, &nwrite, NULL); 2960 vim_free(w); 2961 } 2962 else 2963 { 2964 fprintf(stderr, "%s", str); 2965 } 2966 #else 2967 int len; 2968 2969 # if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 2970 /* On Unix use stderr if it's a tty. 2971 * When not going to start the GUI also use stderr. 2972 * On Mac, when started from Finder, stderr is the console. */ 2973 if ( 2974 # ifdef UNIX 2975 # ifdef MACOS_X 2976 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 2977 # else 2978 isatty(2) 2979 # endif 2980 # ifdef FEAT_GUI 2981 || 2982 # endif 2983 # endif 2984 # ifdef FEAT_GUI 2985 !(gui.in_use || gui.starting) 2986 # endif 2987 ) 2988 { 2989 fprintf(stderr, "%s", str); 2990 return; 2991 } 2992 # endif 2993 2994 /* avoid a delay for a message that isn't there */ 2995 emsg_on_display = FALSE; 2996 2997 len = (int)STRLEN(str) + 1; 2998 if (error_ga.ga_growsize == 0) 2999 { 3000 error_ga.ga_growsize = 80; 3001 error_ga.ga_itemsize = 1; 3002 } 3003 if (ga_grow(&error_ga, len) == OK) 3004 { 3005 mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len, 3006 (char_u *)str, len); 3007 # ifdef UNIX 3008 /* remove CR characters, they are displayed */ 3009 { 3010 char_u *p; 3011 3012 p = (char_u *)error_ga.ga_data + error_ga.ga_len; 3013 for (;;) 3014 { 3015 p = vim_strchr(p, '\r'); 3016 if (p == NULL) 3017 break; 3018 *p = ' '; 3019 } 3020 } 3021 # endif 3022 --len; /* don't count the NUL at the end */ 3023 error_ga.ga_len += len; 3024 } 3025 #endif 3026 } 3027 3028 /* 3029 * Give a message. To be used when the screen hasn't been initialized yet. 3030 * When there is no tty, collect messages until the GUI has started and they 3031 * can be displayed in a message box. 3032 */ 3033 void 3034 mch_msg(char *str) 3035 { 3036 #if defined(MSWIN) && !defined(FEAT_GUI_MSWIN) 3037 int len = (int)STRLEN(str); 3038 DWORD nwrite = 0; 3039 DWORD mode; 3040 HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE); 3041 3042 3043 if (GetConsoleMode(h, &mode) && enc_codepage >= 0 3044 && (int)GetConsoleCP() != enc_codepage) 3045 { 3046 WCHAR *w = enc_to_utf16((char_u *)str, &len); 3047 3048 WriteConsoleW(h, w, len, &nwrite, NULL); 3049 vim_free(w); 3050 } 3051 else 3052 { 3053 printf("%s", str); 3054 } 3055 #else 3056 # if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) 3057 /* On Unix use stdout if we have a tty. This allows "vim -h | more" and 3058 * uses mch_errmsg() when started from the desktop. 3059 * When not going to start the GUI also use stdout. 3060 * On Mac, when started from Finder, stderr is the console. */ 3061 if ( 3062 # ifdef UNIX 3063 # ifdef MACOS_X 3064 (isatty(2) && strcmp("/dev/console", ttyname(2)) != 0) 3065 # else 3066 isatty(2) 3067 # endif 3068 # ifdef FEAT_GUI 3069 || 3070 # endif 3071 # endif 3072 # ifdef FEAT_GUI 3073 !(gui.in_use || gui.starting) 3074 # endif 3075 ) 3076 { 3077 printf("%s", str); 3078 return; 3079 } 3080 # endif 3081 mch_errmsg(str); 3082 #endif 3083 } 3084 #endif /* USE_MCH_ERRMSG */ 3085 3086 /* 3087 * Put a character on the screen at the current message position and advance 3088 * to the next position. Only for printable ASCII! 3089 */ 3090 static void 3091 msg_screen_putchar(int c, int attr) 3092 { 3093 msg_didout = TRUE; /* remember that line is not empty */ 3094 screen_putchar(c, msg_row, msg_col, attr); 3095 #ifdef FEAT_RIGHTLEFT 3096 if (cmdmsg_rl) 3097 { 3098 if (--msg_col == 0) 3099 { 3100 msg_col = Columns; 3101 ++msg_row; 3102 } 3103 } 3104 else 3105 #endif 3106 { 3107 if (++msg_col >= Columns) 3108 { 3109 msg_col = 0; 3110 ++msg_row; 3111 } 3112 } 3113 } 3114 3115 void 3116 msg_moremsg(int full) 3117 { 3118 int attr; 3119 char_u *s = (char_u *)_("-- More --"); 3120 3121 attr = HL_ATTR(HLF_M); 3122 screen_puts(s, (int)Rows - 1, 0, attr); 3123 if (full) 3124 screen_puts((char_u *) 3125 _(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "), 3126 (int)Rows - 1, vim_strsize(s), attr); 3127 } 3128 3129 /* 3130 * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or 3131 * exmode_active. 3132 */ 3133 void 3134 repeat_message(void) 3135 { 3136 if (State == ASKMORE) 3137 { 3138 msg_moremsg(TRUE); /* display --more-- message again */ 3139 msg_row = Rows - 1; 3140 } 3141 #ifdef FEAT_CON_DIALOG 3142 else if (State == CONFIRM) 3143 { 3144 display_confirm_msg(); /* display ":confirm" message again */ 3145 msg_row = Rows - 1; 3146 } 3147 #endif 3148 else if (State == EXTERNCMD) 3149 { 3150 windgoto(msg_row, msg_col); /* put cursor back */ 3151 } 3152 else if (State == HITRETURN || State == SETWSIZE) 3153 { 3154 if (msg_row == Rows - 1) 3155 { 3156 /* Avoid drawing the "hit-enter" prompt below the previous one, 3157 * overwrite it. Esp. useful when regaining focus and a 3158 * FocusGained autocmd exists but didn't draw anything. */ 3159 msg_didout = FALSE; 3160 msg_col = 0; 3161 msg_clr_eos(); 3162 } 3163 hit_return_msg(); 3164 msg_row = Rows - 1; 3165 } 3166 } 3167 3168 /* 3169 * msg_check_screen - check if the screen is initialized. 3170 * Also check msg_row and msg_col, if they are too big it may cause a crash. 3171 * While starting the GUI the terminal codes will be set for the GUI, but the 3172 * output goes to the terminal. Don't use the terminal codes then. 3173 */ 3174 static int 3175 msg_check_screen(void) 3176 { 3177 if (!full_screen || !screen_valid(FALSE)) 3178 return FALSE; 3179 3180 if (msg_row >= Rows) 3181 msg_row = Rows - 1; 3182 if (msg_col >= Columns) 3183 msg_col = Columns - 1; 3184 return TRUE; 3185 } 3186 3187 /* 3188 * Clear from current message position to end of screen. 3189 * Skip this when ":silent" was used, no need to clear for redirection. 3190 */ 3191 void 3192 msg_clr_eos(void) 3193 { 3194 if (msg_silent == 0) 3195 msg_clr_eos_force(); 3196 } 3197 3198 /* 3199 * Clear from current message position to end of screen. 3200 * Note: msg_col is not updated, so we remember the end of the message 3201 * for msg_check(). 3202 */ 3203 void 3204 msg_clr_eos_force(void) 3205 { 3206 if (msg_use_printf()) 3207 { 3208 if (full_screen) /* only when termcap codes are valid */ 3209 { 3210 if (*T_CD) 3211 out_str(T_CD); /* clear to end of display */ 3212 else if (*T_CE) 3213 out_str(T_CE); /* clear to end of line */ 3214 } 3215 } 3216 else 3217 { 3218 #ifdef FEAT_RIGHTLEFT 3219 if (cmdmsg_rl) 3220 { 3221 screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0); 3222 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3223 } 3224 else 3225 #endif 3226 { 3227 screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, 3228 ' ', ' ', 0); 3229 screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0); 3230 } 3231 } 3232 } 3233 3234 /* 3235 * Clear the command line. 3236 */ 3237 void 3238 msg_clr_cmdline(void) 3239 { 3240 msg_row = cmdline_row; 3241 msg_col = 0; 3242 msg_clr_eos_force(); 3243 } 3244 3245 /* 3246 * end putting a message on the screen 3247 * call wait_return if the message does not fit in the available space 3248 * return TRUE if wait_return not called. 3249 */ 3250 int 3251 msg_end(void) 3252 { 3253 /* 3254 * If the string is larger than the window, 3255 * or the ruler option is set and we run into it, 3256 * we have to redraw the window. 3257 * Do not do this if we are abandoning the file or editing the command line. 3258 */ 3259 if (!exiting && need_wait_return && !(State & CMDLINE)) 3260 { 3261 wait_return(FALSE); 3262 return FALSE; 3263 } 3264 out_flush(); 3265 return TRUE; 3266 } 3267 3268 /* 3269 * If the written message runs into the shown command or ruler, we have to 3270 * wait for hit-return and redraw the window later. 3271 */ 3272 void 3273 msg_check(void) 3274 { 3275 if (msg_row == Rows - 1 && msg_col >= sc_col) 3276 { 3277 need_wait_return = TRUE; 3278 redraw_cmdline = TRUE; 3279 } 3280 } 3281 3282 /* 3283 * May write a string to the redirection file. 3284 * When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes. 3285 */ 3286 static void 3287 redir_write(char_u *str, int maxlen) 3288 { 3289 char_u *s = str; 3290 static int cur_col = 0; 3291 3292 /* Don't do anything for displaying prompts and the like. */ 3293 if (redir_off) 3294 return; 3295 3296 /* If 'verbosefile' is set prepare for writing in that file. */ 3297 if (*p_vfile != NUL && verbose_fd == NULL) 3298 verbose_open(); 3299 3300 if (redirecting()) 3301 { 3302 /* If the string doesn't start with CR or NL, go to msg_col */ 3303 if (*s != '\n' && *s != '\r') 3304 { 3305 while (cur_col < msg_col) 3306 { 3307 #ifdef FEAT_EVAL 3308 if (redir_execute) 3309 execute_redir_str((char_u *)" ", -1); 3310 else if (redir_reg) 3311 write_reg_contents(redir_reg, (char_u *)" ", -1, TRUE); 3312 else if (redir_vname) 3313 var_redir_str((char_u *)" ", -1); 3314 else 3315 #endif 3316 if (redir_fd != NULL) 3317 fputs(" ", redir_fd); 3318 if (verbose_fd != NULL) 3319 fputs(" ", verbose_fd); 3320 ++cur_col; 3321 } 3322 } 3323 3324 #ifdef FEAT_EVAL 3325 if (redir_execute) 3326 execute_redir_str(s, maxlen); 3327 else if (redir_reg) 3328 write_reg_contents(redir_reg, s, maxlen, TRUE); 3329 else if (redir_vname) 3330 var_redir_str(s, maxlen); 3331 #endif 3332 3333 /* Write and adjust the current column. */ 3334 while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen)) 3335 { 3336 #ifdef FEAT_EVAL 3337 if (!redir_reg && !redir_vname && !redir_execute) 3338 #endif 3339 if (redir_fd != NULL) 3340 putc(*s, redir_fd); 3341 if (verbose_fd != NULL) 3342 putc(*s, verbose_fd); 3343 if (*s == '\r' || *s == '\n') 3344 cur_col = 0; 3345 else if (*s == '\t') 3346 cur_col += (8 - cur_col % 8); 3347 else 3348 ++cur_col; 3349 ++s; 3350 } 3351 3352 if (msg_silent != 0) /* should update msg_col */ 3353 msg_col = cur_col; 3354 } 3355 } 3356 3357 int 3358 redirecting(void) 3359 { 3360 return redir_fd != NULL || *p_vfile != NUL 3361 #ifdef FEAT_EVAL 3362 || redir_reg || redir_vname || redir_execute 3363 #endif 3364 ; 3365 } 3366 3367 /* 3368 * Before giving verbose message. 3369 * Must always be called paired with verbose_leave()! 3370 */ 3371 void 3372 verbose_enter(void) 3373 { 3374 if (*p_vfile != NUL) 3375 ++msg_silent; 3376 } 3377 3378 /* 3379 * After giving verbose message. 3380 * Must always be called paired with verbose_enter()! 3381 */ 3382 void 3383 verbose_leave(void) 3384 { 3385 if (*p_vfile != NUL) 3386 if (--msg_silent < 0) 3387 msg_silent = 0; 3388 } 3389 3390 /* 3391 * Like verbose_enter() and set msg_scroll when displaying the message. 3392 */ 3393 void 3394 verbose_enter_scroll(void) 3395 { 3396 if (*p_vfile != NUL) 3397 ++msg_silent; 3398 else 3399 /* always scroll up, don't overwrite */ 3400 msg_scroll = TRUE; 3401 } 3402 3403 /* 3404 * Like verbose_leave() and set cmdline_row when displaying the message. 3405 */ 3406 void 3407 verbose_leave_scroll(void) 3408 { 3409 if (*p_vfile != NUL) 3410 { 3411 if (--msg_silent < 0) 3412 msg_silent = 0; 3413 } 3414 else 3415 cmdline_row = msg_row; 3416 } 3417 3418 /* 3419 * Called when 'verbosefile' is set: stop writing to the file. 3420 */ 3421 void 3422 verbose_stop(void) 3423 { 3424 if (verbose_fd != NULL) 3425 { 3426 fclose(verbose_fd); 3427 verbose_fd = NULL; 3428 } 3429 verbose_did_open = FALSE; 3430 } 3431 3432 /* 3433 * Open the file 'verbosefile'. 3434 * Return FAIL or OK. 3435 */ 3436 int 3437 verbose_open(void) 3438 { 3439 if (verbose_fd == NULL && !verbose_did_open) 3440 { 3441 /* Only give the error message once. */ 3442 verbose_did_open = TRUE; 3443 3444 verbose_fd = mch_fopen((char *)p_vfile, "a"); 3445 if (verbose_fd == NULL) 3446 { 3447 semsg(_(e_notopen), p_vfile); 3448 return FAIL; 3449 } 3450 } 3451 return OK; 3452 } 3453 3454 /* 3455 * Give a warning message (for searching). 3456 * Use 'w' highlighting and may repeat the message after redrawing 3457 */ 3458 void 3459 give_warning(char_u *message, int hl) 3460 { 3461 /* Don't do this for ":silent". */ 3462 if (msg_silent != 0) 3463 return; 3464 3465 /* Don't want a hit-enter prompt here. */ 3466 ++no_wait_return; 3467 3468 #ifdef FEAT_EVAL 3469 set_vim_var_string(VV_WARNINGMSG, message, -1); 3470 #endif 3471 VIM_CLEAR(keep_msg); 3472 if (hl) 3473 keep_msg_attr = HL_ATTR(HLF_W); 3474 else 3475 keep_msg_attr = 0; 3476 if (msg_attr((char *)message, keep_msg_attr) && msg_scrolled == 0) 3477 set_keep_msg(message, keep_msg_attr); 3478 msg_didout = FALSE; /* overwrite this message */ 3479 msg_nowait = TRUE; /* don't wait for this message */ 3480 msg_col = 0; 3481 3482 --no_wait_return; 3483 } 3484 3485 #if defined(FEAT_EVAL) || defined(PROTO) 3486 void 3487 give_warning2(char_u *message, char_u *a1, int hl) 3488 { 3489 vim_snprintf((char *)IObuff, IOSIZE, (char *)message, a1); 3490 give_warning(IObuff, hl); 3491 } 3492 #endif 3493 3494 /* 3495 * Advance msg cursor to column "col". 3496 */ 3497 void 3498 msg_advance(int col) 3499 { 3500 if (msg_silent != 0) /* nothing to advance to */ 3501 { 3502 msg_col = col; /* for redirection, may fill it up later */ 3503 return; 3504 } 3505 if (col >= Columns) /* not enough room */ 3506 col = Columns - 1; 3507 #ifdef FEAT_RIGHTLEFT 3508 if (cmdmsg_rl) 3509 while (msg_col > Columns - col) 3510 msg_putchar(' '); 3511 else 3512 #endif 3513 while (msg_col < col) 3514 msg_putchar(' '); 3515 } 3516 3517 #if defined(FEAT_CON_DIALOG) || defined(PROTO) 3518 /* 3519 * Used for "confirm()" function, and the :confirm command prefix. 3520 * Versions which haven't got flexible dialogs yet, and console 3521 * versions, get this generic handler which uses the command line. 3522 * 3523 * type = one of: 3524 * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC 3525 * title = title string (can be NULL for default) 3526 * (neither used in console dialogs at the moment) 3527 * 3528 * Format of the "buttons" string: 3529 * "Button1Name\nButton2Name\nButton3Name" 3530 * The first button should normally be the default/accept 3531 * The second button should be the 'Cancel' button 3532 * Other buttons- use your imagination! 3533 * A '&' in a button name becomes a shortcut, so each '&' should be before a 3534 * different letter. 3535 */ 3536 int 3537 do_dialog( 3538 int type UNUSED, 3539 char_u *title UNUSED, 3540 char_u *message, 3541 char_u *buttons, 3542 int dfltbutton, 3543 char_u *textfield UNUSED, /* IObuff for inputdialog(), NULL 3544 otherwise */ 3545 int ex_cmd) /* when TRUE pressing : accepts default and starts 3546 Ex command */ 3547 { 3548 int oldState; 3549 int retval = 0; 3550 char_u *hotkeys; 3551 int c; 3552 int i; 3553 3554 #ifndef NO_CONSOLE 3555 /* Don't output anything in silent mode ("ex -s") */ 3556 if (silent_mode) 3557 return dfltbutton; /* return default option */ 3558 #endif 3559 3560 #ifdef FEAT_GUI_DIALOG 3561 /* When GUI is running and 'c' not in 'guioptions', use the GUI dialog */ 3562 if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) 3563 { 3564 c = gui_mch_dialog(type, title, message, buttons, dfltbutton, 3565 textfield, ex_cmd); 3566 /* avoid a hit-enter prompt without clearing the cmdline */ 3567 need_wait_return = FALSE; 3568 emsg_on_display = FALSE; 3569 cmdline_row = msg_row; 3570 3571 /* Flush output to avoid that further messages and redrawing is done 3572 * in the wrong order. */ 3573 out_flush(); 3574 gui_mch_update(); 3575 3576 return c; 3577 } 3578 #endif 3579 3580 oldState = State; 3581 State = CONFIRM; 3582 #ifdef FEAT_MOUSE 3583 setmouse(); 3584 #endif 3585 3586 /* 3587 * Since we wait for a keypress, don't make the 3588 * user press RETURN as well afterwards. 3589 */ 3590 ++no_wait_return; 3591 hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); 3592 3593 if (hotkeys != NULL) 3594 { 3595 for (;;) 3596 { 3597 /* Get a typed character directly from the user. */ 3598 c = get_keystroke(); 3599 switch (c) 3600 { 3601 case CAR: /* User accepts default option */ 3602 case NL: 3603 retval = dfltbutton; 3604 break; 3605 case Ctrl_C: /* User aborts/cancels */ 3606 case ESC: 3607 retval = 0; 3608 break; 3609 default: /* Could be a hotkey? */ 3610 if (c < 0) /* special keys are ignored here */ 3611 continue; 3612 if (c == ':' && ex_cmd) 3613 { 3614 retval = dfltbutton; 3615 ins_char_typebuf(':'); 3616 break; 3617 } 3618 3619 /* Make the character lowercase, as chars in "hotkeys" are. */ 3620 c = MB_TOLOWER(c); 3621 retval = 1; 3622 for (i = 0; hotkeys[i]; ++i) 3623 { 3624 if (has_mbyte) 3625 { 3626 if ((*mb_ptr2char)(hotkeys + i) == c) 3627 break; 3628 i += (*mb_ptr2len)(hotkeys + i) - 1; 3629 } 3630 else 3631 if (hotkeys[i] == c) 3632 break; 3633 ++retval; 3634 } 3635 if (hotkeys[i]) 3636 break; 3637 /* No hotkey match, so keep waiting */ 3638 continue; 3639 } 3640 break; 3641 } 3642 3643 vim_free(hotkeys); 3644 } 3645 3646 State = oldState; 3647 #ifdef FEAT_MOUSE 3648 setmouse(); 3649 #endif 3650 --no_wait_return; 3651 msg_end_prompt(); 3652 3653 return retval; 3654 } 3655 3656 /* 3657 * Copy one character from "*from" to "*to", taking care of multi-byte 3658 * characters. Return the length of the character in bytes. 3659 */ 3660 static int 3661 copy_char( 3662 char_u *from, 3663 char_u *to, 3664 int lowercase) /* make character lower case */ 3665 { 3666 int len; 3667 int c; 3668 3669 if (has_mbyte) 3670 { 3671 if (lowercase) 3672 { 3673 c = MB_TOLOWER((*mb_ptr2char)(from)); 3674 return (*mb_char2bytes)(c, to); 3675 } 3676 else 3677 { 3678 len = (*mb_ptr2len)(from); 3679 mch_memmove(to, from, (size_t)len); 3680 return len; 3681 } 3682 } 3683 else 3684 { 3685 if (lowercase) 3686 *to = (char_u)TOLOWER_LOC(*from); 3687 else 3688 *to = *from; 3689 return 1; 3690 } 3691 } 3692 3693 /* 3694 * Format the dialog string, and display it at the bottom of 3695 * the screen. Return a string of hotkey chars (if defined) for 3696 * each 'button'. If a button has no hotkey defined, the first character of 3697 * the button is used. 3698 * The hotkeys can be multi-byte characters, but without combining chars. 3699 * 3700 * Returns an allocated string with hotkeys, or NULL for error. 3701 */ 3702 static char_u * 3703 msg_show_console_dialog( 3704 char_u *message, 3705 char_u *buttons, 3706 int dfltbutton) 3707 { 3708 int len = 0; 3709 #define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1) 3710 int lenhotkey = HOTK_LEN; /* count first button */ 3711 char_u *hotk = NULL; 3712 char_u *msgp = NULL; 3713 char_u *hotkp = NULL; 3714 char_u *r; 3715 int copy; 3716 #define HAS_HOTKEY_LEN 30 3717 char_u has_hotkey[HAS_HOTKEY_LEN]; 3718 int first_hotkey = FALSE; /* first char of button is hotkey */ 3719 int idx; 3720 3721 has_hotkey[0] = FALSE; 3722 3723 /* 3724 * First loop: compute the size of memory to allocate. 3725 * Second loop: copy to the allocated memory. 3726 */ 3727 for (copy = 0; copy <= 1; ++copy) 3728 { 3729 r = buttons; 3730 idx = 0; 3731 while (*r) 3732 { 3733 if (*r == DLG_BUTTON_SEP) 3734 { 3735 if (copy) 3736 { 3737 *msgp++ = ','; 3738 *msgp++ = ' '; /* '\n' -> ', ' */ 3739 3740 /* advance to next hotkey and set default hotkey */ 3741 if (has_mbyte) 3742 hotkp += STRLEN(hotkp); 3743 else 3744 ++hotkp; 3745 hotkp[copy_char(r + 1, hotkp, TRUE)] = NUL; 3746 if (dfltbutton) 3747 --dfltbutton; 3748 3749 /* If no hotkey is specified first char is used. */ 3750 if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx]) 3751 first_hotkey = TRUE; 3752 } 3753 else 3754 { 3755 len += 3; /* '\n' -> ', '; 'x' -> '(x)' */ 3756 lenhotkey += HOTK_LEN; /* each button needs a hotkey */ 3757 if (idx < HAS_HOTKEY_LEN - 1) 3758 has_hotkey[++idx] = FALSE; 3759 } 3760 } 3761 else if (*r == DLG_HOTKEY_CHAR || first_hotkey) 3762 { 3763 if (*r == DLG_HOTKEY_CHAR) 3764 ++r; 3765 first_hotkey = FALSE; 3766 if (copy) 3767 { 3768 if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */ 3769 *msgp++ = *r; 3770 else 3771 { 3772 /* '&a' -> '[a]' */ 3773 *msgp++ = (dfltbutton == 1) ? '[' : '('; 3774 msgp += copy_char(r, msgp, FALSE); 3775 *msgp++ = (dfltbutton == 1) ? ']' : ')'; 3776 3777 /* redefine hotkey */ 3778 hotkp[copy_char(r, hotkp, TRUE)] = NUL; 3779 } 3780 } 3781 else 3782 { 3783 ++len; /* '&a' -> '[a]' */ 3784 if (idx < HAS_HOTKEY_LEN - 1) 3785 has_hotkey[idx] = TRUE; 3786 } 3787 } 3788 else 3789 { 3790 /* everything else copy literally */ 3791 if (copy) 3792 msgp += copy_char(r, msgp, FALSE); 3793 } 3794 3795 /* advance to the next character */ 3796 MB_PTR_ADV(r); 3797 } 3798 3799 if (copy) 3800 { 3801 *msgp++ = ':'; 3802 *msgp++ = ' '; 3803 *msgp = NUL; 3804 } 3805 else 3806 { 3807 len += (int)(STRLEN(message) 3808 + 2 /* for the NL's */ 3809 + STRLEN(buttons) 3810 + 3); /* for the ": " and NUL */ 3811 lenhotkey++; /* for the NUL */ 3812 3813 /* If no hotkey is specified first char is used. */ 3814 if (!has_hotkey[0]) 3815 { 3816 first_hotkey = TRUE; 3817 len += 2; /* "x" -> "[x]" */ 3818 } 3819 3820 /* 3821 * Now allocate and load the strings 3822 */ 3823 vim_free(confirm_msg); 3824 confirm_msg = alloc(len); 3825 if (confirm_msg == NULL) 3826 return NULL; 3827 *confirm_msg = NUL; 3828 hotk = alloc(lenhotkey); 3829 if (hotk == NULL) 3830 return NULL; 3831 3832 *confirm_msg = '\n'; 3833 STRCPY(confirm_msg + 1, message); 3834 3835 msgp = confirm_msg + 1 + STRLEN(message); 3836 hotkp = hotk; 3837 3838 /* Define first default hotkey. Keep the hotkey string NUL 3839 * terminated to avoid reading past the end. */ 3840 hotkp[copy_char(buttons, hotkp, TRUE)] = NUL; 3841 3842 /* Remember where the choices start, displaying starts here when 3843 * "hotkp" typed at the more prompt. */ 3844 confirm_msg_tail = msgp; 3845 *msgp++ = '\n'; 3846 } 3847 } 3848 3849 display_confirm_msg(); 3850 return hotk; 3851 } 3852 3853 /* 3854 * Display the ":confirm" message. Also called when screen resized. 3855 */ 3856 void 3857 display_confirm_msg(void) 3858 { 3859 /* avoid that 'q' at the more prompt truncates the message here */ 3860 ++confirm_msg_used; 3861 if (confirm_msg != NULL) 3862 msg_puts_attr((char *)confirm_msg, HL_ATTR(HLF_M)); 3863 --confirm_msg_used; 3864 } 3865 3866 #endif /* FEAT_CON_DIALOG */ 3867 3868 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) 3869 3870 int 3871 vim_dialog_yesno( 3872 int type, 3873 char_u *title, 3874 char_u *message, 3875 int dflt) 3876 { 3877 if (do_dialog(type, 3878 title == NULL ? (char_u *)_("Question") : title, 3879 message, 3880 (char_u *)_("&Yes\n&No"), dflt, NULL, FALSE) == 1) 3881 return VIM_YES; 3882 return VIM_NO; 3883 } 3884 3885 int 3886 vim_dialog_yesnocancel( 3887 int type, 3888 char_u *title, 3889 char_u *message, 3890 int dflt) 3891 { 3892 switch (do_dialog(type, 3893 title == NULL ? (char_u *)_("Question") : title, 3894 message, 3895 (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL, FALSE)) 3896 { 3897 case 1: return VIM_YES; 3898 case 2: return VIM_NO; 3899 } 3900 return VIM_CANCEL; 3901 } 3902 3903 int 3904 vim_dialog_yesnoallcancel( 3905 int type, 3906 char_u *title, 3907 char_u *message, 3908 int dflt) 3909 { 3910 switch (do_dialog(type, 3911 title == NULL ? (char_u *)"Question" : title, 3912 message, 3913 (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"), 3914 dflt, NULL, FALSE)) 3915 { 3916 case 1: return VIM_YES; 3917 case 2: return VIM_NO; 3918 case 3: return VIM_ALL; 3919 case 4: return VIM_DISCARDALL; 3920 } 3921 return VIM_CANCEL; 3922 } 3923 3924 #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */ 3925 3926 #if defined(FEAT_BROWSE) || defined(PROTO) 3927 /* 3928 * Generic browse function. Calls gui_mch_browse() when possible. 3929 * Later this may pop-up a non-GUI file selector (external command?). 3930 */ 3931 char_u * 3932 do_browse( 3933 int flags, /* BROWSE_SAVE and BROWSE_DIR */ 3934 char_u *title, /* title for the window */ 3935 char_u *dflt, /* default file name (may include directory) */ 3936 char_u *ext, /* extension added */ 3937 char_u *initdir, /* initial directory, NULL for current dir or 3938 when using path from "dflt" */ 3939 char_u *filter, /* file name filter */ 3940 buf_T *buf) /* buffer to read/write for */ 3941 { 3942 char_u *fname; 3943 static char_u *last_dir = NULL; /* last used directory */ 3944 char_u *tofree = NULL; 3945 int save_browse = cmdmod.browse; 3946 3947 /* Must turn off browse to avoid that autocommands will get the 3948 * flag too! */ 3949 cmdmod.browse = FALSE; 3950 3951 if (title == NULL || *title == NUL) 3952 { 3953 if (flags & BROWSE_DIR) 3954 title = (char_u *)_("Select Directory dialog"); 3955 else if (flags & BROWSE_SAVE) 3956 title = (char_u *)_("Save File dialog"); 3957 else 3958 title = (char_u *)_("Open File dialog"); 3959 } 3960 3961 /* When no directory specified, use default file name, default dir, buffer 3962 * dir, last dir or current dir */ 3963 if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) 3964 { 3965 if (mch_isdir(dflt)) /* default file name is a directory */ 3966 { 3967 initdir = dflt; 3968 dflt = NULL; 3969 } 3970 else if (gettail(dflt) != dflt) /* default file name includes a path */ 3971 { 3972 tofree = vim_strsave(dflt); 3973 if (tofree != NULL) 3974 { 3975 initdir = tofree; 3976 *gettail(initdir) = NUL; 3977 dflt = gettail(dflt); 3978 } 3979 } 3980 } 3981 3982 if (initdir == NULL || *initdir == NUL) 3983 { 3984 /* When 'browsedir' is a directory, use it */ 3985 if (STRCMP(p_bsdir, "last") != 0 3986 && STRCMP(p_bsdir, "buffer") != 0 3987 && STRCMP(p_bsdir, "current") != 0 3988 && mch_isdir(p_bsdir)) 3989 initdir = p_bsdir; 3990 /* When saving or 'browsedir' is "buffer", use buffer fname */ 3991 else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') 3992 && buf != NULL && buf->b_ffname != NULL) 3993 { 3994 if (dflt == NULL || *dflt == NUL) 3995 dflt = gettail(curbuf->b_ffname); 3996 tofree = vim_strsave(curbuf->b_ffname); 3997 if (tofree != NULL) 3998 { 3999 initdir = tofree; 4000 *gettail(initdir) = NUL; 4001 } 4002 } 4003 /* When 'browsedir' is "last", use dir from last browse */ 4004 else if (*p_bsdir == 'l') 4005 initdir = last_dir; 4006 /* When 'browsedir is "current", use current directory. This is the 4007 * default already, leave initdir empty. */ 4008 } 4009 4010 # ifdef FEAT_GUI 4011 if (gui.in_use) /* when this changes, also adjust f_has()! */ 4012 { 4013 if (filter == NULL 4014 # ifdef FEAT_EVAL 4015 && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL 4016 && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL 4017 # endif 4018 ) 4019 filter = BROWSE_FILTER_DEFAULT; 4020 if (flags & BROWSE_DIR) 4021 { 4022 # if defined(FEAT_GUI_GTK) || defined(MSWIN) 4023 /* For systems that have a directory dialog. */ 4024 fname = gui_mch_browsedir(title, initdir); 4025 # else 4026 /* Generic solution for selecting a directory: select a file and 4027 * remove the file name. */ 4028 fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); 4029 # endif 4030 # if !defined(FEAT_GUI_GTK) 4031 /* Win32 adds a dummy file name, others return an arbitrary file 4032 * name. GTK+ 2 returns only the directory, */ 4033 if (fname != NULL && *fname != NUL && !mch_isdir(fname)) 4034 { 4035 /* Remove the file name. */ 4036 char_u *tail = gettail_sep(fname); 4037 4038 if (tail == fname) 4039 *tail++ = '.'; /* use current dir */ 4040 *tail = NUL; 4041 } 4042 # endif 4043 } 4044 else 4045 fname = gui_mch_browse(flags & BROWSE_SAVE, 4046 title, dflt, ext, initdir, (char_u *)_(filter)); 4047 4048 /* We hang around in the dialog for a while, the user might do some 4049 * things to our files. The Win32 dialog allows deleting or renaming 4050 * a file, check timestamps. */ 4051 need_check_timestamps = TRUE; 4052 did_check_timestamps = FALSE; 4053 } 4054 else 4055 # endif 4056 { 4057 /* TODO: non-GUI file selector here */ 4058 emsg(_("E338: Sorry, no file browser in console mode")); 4059 fname = NULL; 4060 } 4061 4062 /* keep the directory for next time */ 4063 if (fname != NULL) 4064 { 4065 vim_free(last_dir); 4066 last_dir = vim_strsave(fname); 4067 if (last_dir != NULL && !(flags & BROWSE_DIR)) 4068 { 4069 *gettail(last_dir) = NUL; 4070 if (*last_dir == NUL) 4071 { 4072 /* filename only returned, must be in current dir */ 4073 vim_free(last_dir); 4074 last_dir = alloc(MAXPATHL); 4075 if (last_dir != NULL) 4076 mch_dirname(last_dir, MAXPATHL); 4077 } 4078 } 4079 } 4080 4081 vim_free(tofree); 4082 cmdmod.browse = save_browse; 4083 4084 return fname; 4085 } 4086 #endif 4087 4088 #if defined(FEAT_EVAL) 4089 static char *e_printf = N_("E766: Insufficient arguments for printf()"); 4090 4091 /* 4092 * Get number argument from "idxp" entry in "tvs". First entry is 1. 4093 */ 4094 static varnumber_T 4095 tv_nr(typval_T *tvs, int *idxp) 4096 { 4097 int idx = *idxp - 1; 4098 varnumber_T n = 0; 4099 int err = FALSE; 4100 4101 if (tvs[idx].v_type == VAR_UNKNOWN) 4102 emsg(_(e_printf)); 4103 else 4104 { 4105 ++*idxp; 4106 n = tv_get_number_chk(&tvs[idx], &err); 4107 if (err) 4108 n = 0; 4109 } 4110 return n; 4111 } 4112 4113 /* 4114 * Get string argument from "idxp" entry in "tvs". First entry is 1. 4115 * If "tofree" is NULL tv_get_string_chk() is used. Some types (e.g. List) 4116 * are not converted to a string. 4117 * If "tofree" is not NULL echo_string() is used. All types are converted to 4118 * a string with the same format as ":echo". The caller must free "*tofree". 4119 * Returns NULL for an error. 4120 */ 4121 static char * 4122 tv_str(typval_T *tvs, int *idxp, char_u **tofree) 4123 { 4124 int idx = *idxp - 1; 4125 char *s = NULL; 4126 static char_u numbuf[NUMBUFLEN]; 4127 4128 if (tvs[idx].v_type == VAR_UNKNOWN) 4129 emsg(_(e_printf)); 4130 else 4131 { 4132 ++*idxp; 4133 if (tofree != NULL) 4134 s = (char *)echo_string(&tvs[idx], tofree, numbuf, get_copyID()); 4135 else 4136 s = (char *)tv_get_string_chk(&tvs[idx]); 4137 } 4138 return s; 4139 } 4140 4141 # ifdef FEAT_FLOAT 4142 /* 4143 * Get float argument from "idxp" entry in "tvs". First entry is 1. 4144 */ 4145 static double 4146 tv_float(typval_T *tvs, int *idxp) 4147 { 4148 int idx = *idxp - 1; 4149 double f = 0; 4150 4151 if (tvs[idx].v_type == VAR_UNKNOWN) 4152 emsg(_(e_printf)); 4153 else 4154 { 4155 ++*idxp; 4156 if (tvs[idx].v_type == VAR_FLOAT) 4157 f = tvs[idx].vval.v_float; 4158 else if (tvs[idx].v_type == VAR_NUMBER) 4159 f = (double)tvs[idx].vval.v_number; 4160 else 4161 emsg(_("E807: Expected Float argument for printf()")); 4162 } 4163 return f; 4164 } 4165 # endif 4166 #endif 4167 4168 #ifdef FEAT_FLOAT 4169 /* 4170 * Return the representation of infinity for printf() function: 4171 * "-inf", "inf", "+inf", " inf", "-INF", "INF", "+INF" or " INF". 4172 */ 4173 static const char * 4174 infinity_str(int positive, 4175 char fmt_spec, 4176 int force_sign, 4177 int space_for_positive) 4178 { 4179 static const char *table[] = 4180 { 4181 "-inf", "inf", "+inf", " inf", 4182 "-INF", "INF", "+INF", " INF" 4183 }; 4184 int idx = positive * (1 + force_sign + force_sign * space_for_positive); 4185 4186 if (ASCII_ISUPPER(fmt_spec)) 4187 idx += 4; 4188 return table[idx]; 4189 } 4190 #endif 4191 4192 /* 4193 * This code was included to provide a portable vsnprintf() and snprintf(). 4194 * Some systems may provide their own, but we always use this one for 4195 * consistency. 4196 * 4197 * This code is based on snprintf.c - a portable implementation of snprintf 4198 * by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06. 4199 * Included with permission. It was heavily modified to fit in Vim. 4200 * The original code, including useful comments, can be found here: 4201 * http://www.ijs.si/software/snprintf/ 4202 * 4203 * This snprintf() only supports the following conversion specifiers: 4204 * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) 4205 * with flags: '-', '+', ' ', '0' and '#'. 4206 * An asterisk is supported for field width as well as precision. 4207 * 4208 * Limited support for floating point was added: 'f', 'F', 'e', 'E', 'g', 'G'. 4209 * 4210 * Length modifiers 'h' (short int) and 'l' (long int) and 'll' (long long int) 4211 * are supported. 4212 * 4213 * The locale is not used, the string is used as a byte string. This is only 4214 * relevant for double-byte encodings where the second byte may be '%'. 4215 * 4216 * It is permitted for "str_m" to be zero, and it is permitted to specify NULL 4217 * pointer for resulting string argument if "str_m" is zero (as per ISO C99). 4218 * 4219 * The return value is the number of characters which would be generated 4220 * for the given input, excluding the trailing NUL. If this value 4221 * is greater or equal to "str_m", not all characters from the result 4222 * have been stored in str, output bytes beyond the ("str_m"-1) -th character 4223 * are discarded. If "str_m" is greater than zero it is guaranteed 4224 * the resulting string will be NUL-terminated. 4225 */ 4226 4227 /* 4228 * When va_list is not supported we only define vim_snprintf(). 4229 * 4230 * vim_vsnprintf_typval() can be invoked with either "va_list" or a list of 4231 * "typval_T". When the latter is not used it must be NULL. 4232 */ 4233 4234 /* When generating prototypes all of this is skipped, cproto doesn't 4235 * understand this. */ 4236 #ifndef PROTO 4237 4238 /* Like vim_vsnprintf() but append to the string. */ 4239 int 4240 vim_snprintf_add(char *str, size_t str_m, const char *fmt, ...) 4241 { 4242 va_list ap; 4243 int str_l; 4244 size_t len = STRLEN(str); 4245 size_t space; 4246 4247 if (str_m <= len) 4248 space = 0; 4249 else 4250 space = str_m - len; 4251 va_start(ap, fmt); 4252 str_l = vim_vsnprintf(str + len, space, fmt, ap); 4253 va_end(ap); 4254 return str_l; 4255 } 4256 4257 int 4258 vim_snprintf(char *str, size_t str_m, const char *fmt, ...) 4259 { 4260 va_list ap; 4261 int str_l; 4262 4263 va_start(ap, fmt); 4264 str_l = vim_vsnprintf(str, str_m, fmt, ap); 4265 va_end(ap); 4266 return str_l; 4267 } 4268 4269 int 4270 vim_vsnprintf( 4271 char *str, 4272 size_t str_m, 4273 const char *fmt, 4274 va_list ap) 4275 { 4276 return vim_vsnprintf_typval(str, str_m, fmt, ap, NULL); 4277 } 4278 4279 int 4280 vim_vsnprintf_typval( 4281 char *str, 4282 size_t str_m, 4283 const char *fmt, 4284 va_list ap, 4285 typval_T *tvs) 4286 { 4287 size_t str_l = 0; 4288 const char *p = fmt; 4289 int arg_idx = 1; 4290 4291 if (p == NULL) 4292 p = ""; 4293 while (*p != NUL) 4294 { 4295 if (*p != '%') 4296 { 4297 char *q = strchr(p + 1, '%'); 4298 size_t n = (q == NULL) ? STRLEN(p) : (size_t)(q - p); 4299 4300 /* Copy up to the next '%' or NUL without any changes. */ 4301 if (str_l < str_m) 4302 { 4303 size_t avail = str_m - str_l; 4304 4305 mch_memmove(str + str_l, p, n > avail ? avail : n); 4306 } 4307 p += n; 4308 str_l += n; 4309 } 4310 else 4311 { 4312 size_t min_field_width = 0, precision = 0; 4313 int zero_padding = 0, precision_specified = 0, justify_left = 0; 4314 int alternate_form = 0, force_sign = 0; 4315 4316 /* If both the ' ' and '+' flags appear, the ' ' flag should be 4317 * ignored. */ 4318 int space_for_positive = 1; 4319 4320 /* allowed values: \0, h, l, L */ 4321 char length_modifier = '\0'; 4322 4323 /* temporary buffer for simple numeric->string conversion */ 4324 # if defined(FEAT_FLOAT) 4325 # define TMP_LEN 350 /* On my system 1e308 is the biggest number possible. 4326 * That sounds reasonable to use as the maximum 4327 * printable. */ 4328 # elif defined(FEAT_NUM64) 4329 # define TMP_LEN 66 4330 # else 4331 # define TMP_LEN 34 4332 # endif 4333 char tmp[TMP_LEN]; 4334 4335 /* string address in case of string argument */ 4336 const char *str_arg = NULL; 4337 4338 /* natural field width of arg without padding and sign */ 4339 size_t str_arg_l; 4340 4341 /* unsigned char argument value - only defined for c conversion. 4342 * N.B. standard explicitly states the char argument for the c 4343 * conversion is unsigned */ 4344 unsigned char uchar_arg; 4345 4346 /* number of zeros to be inserted for numeric conversions as 4347 * required by the precision or minimal field width */ 4348 size_t number_of_zeros_to_pad = 0; 4349 4350 /* index into tmp where zero padding is to be inserted */ 4351 size_t zero_padding_insertion_ind = 0; 4352 4353 /* current conversion specifier character */ 4354 char fmt_spec = '\0'; 4355 4356 /* buffer for 's' and 'S' specs */ 4357 char_u *tofree = NULL; 4358 4359 4360 p++; /* skip '%' */ 4361 4362 /* parse flags */ 4363 while (*p == '0' || *p == '-' || *p == '+' || *p == ' ' 4364 || *p == '#' || *p == '\'') 4365 { 4366 switch (*p) 4367 { 4368 case '0': zero_padding = 1; break; 4369 case '-': justify_left = 1; break; 4370 case '+': force_sign = 1; space_for_positive = 0; break; 4371 case ' ': force_sign = 1; 4372 /* If both the ' ' and '+' flags appear, the ' ' 4373 * flag should be ignored */ 4374 break; 4375 case '#': alternate_form = 1; break; 4376 case '\'': break; 4377 } 4378 p++; 4379 } 4380 /* If the '0' and '-' flags both appear, the '0' flag should be 4381 * ignored. */ 4382 4383 /* parse field width */ 4384 if (*p == '*') 4385 { 4386 int j; 4387 4388 p++; 4389 j = 4390 # if defined(FEAT_EVAL) 4391 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4392 # endif 4393 va_arg(ap, int); 4394 if (j >= 0) 4395 min_field_width = j; 4396 else 4397 { 4398 min_field_width = -j; 4399 justify_left = 1; 4400 } 4401 } 4402 else if (VIM_ISDIGIT((int)(*p))) 4403 { 4404 /* size_t could be wider than unsigned int; make sure we treat 4405 * argument like common implementations do */ 4406 unsigned int uj = *p++ - '0'; 4407 4408 while (VIM_ISDIGIT((int)(*p))) 4409 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4410 min_field_width = uj; 4411 } 4412 4413 /* parse precision */ 4414 if (*p == '.') 4415 { 4416 p++; 4417 precision_specified = 1; 4418 if (*p == '*') 4419 { 4420 int j; 4421 4422 j = 4423 # if defined(FEAT_EVAL) 4424 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4425 # endif 4426 va_arg(ap, int); 4427 p++; 4428 if (j >= 0) 4429 precision = j; 4430 else 4431 { 4432 precision_specified = 0; 4433 precision = 0; 4434 } 4435 } 4436 else if (VIM_ISDIGIT((int)(*p))) 4437 { 4438 /* size_t could be wider than unsigned int; make sure we 4439 * treat argument like common implementations do */ 4440 unsigned int uj = *p++ - '0'; 4441 4442 while (VIM_ISDIGIT((int)(*p))) 4443 uj = 10 * uj + (unsigned int)(*p++ - '0'); 4444 precision = uj; 4445 } 4446 } 4447 4448 /* parse 'h', 'l' and 'll' length modifiers */ 4449 if (*p == 'h' || *p == 'l') 4450 { 4451 length_modifier = *p; 4452 p++; 4453 if (length_modifier == 'l' && *p == 'l') 4454 { 4455 /* double l = long long */ 4456 # ifdef FEAT_NUM64 4457 length_modifier = 'L'; 4458 # else 4459 length_modifier = 'l'; /* treat it as a single 'l' */ 4460 # endif 4461 p++; 4462 } 4463 } 4464 fmt_spec = *p; 4465 4466 /* common synonyms: */ 4467 switch (fmt_spec) 4468 { 4469 case 'i': fmt_spec = 'd'; break; 4470 case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; 4471 case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; 4472 case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; 4473 default: break; 4474 } 4475 4476 # if defined(FEAT_EVAL) && defined(FEAT_NUM64) 4477 switch (fmt_spec) 4478 { 4479 case 'd': case 'u': case 'o': case 'x': case 'X': 4480 if (tvs != NULL && length_modifier == '\0') 4481 length_modifier = 'L'; 4482 } 4483 # endif 4484 4485 /* get parameter value, do initial processing */ 4486 switch (fmt_spec) 4487 { 4488 /* '%' and 'c' behave similar to 's' regarding flags and field 4489 * widths */ 4490 case '%': 4491 case 'c': 4492 case 's': 4493 case 'S': 4494 str_arg_l = 1; 4495 switch (fmt_spec) 4496 { 4497 case '%': 4498 str_arg = p; 4499 break; 4500 4501 case 'c': 4502 { 4503 int j; 4504 4505 j = 4506 # if defined(FEAT_EVAL) 4507 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4508 # endif 4509 va_arg(ap, int); 4510 /* standard demands unsigned char */ 4511 uchar_arg = (unsigned char)j; 4512 str_arg = (char *)&uchar_arg; 4513 break; 4514 } 4515 4516 case 's': 4517 case 'S': 4518 str_arg = 4519 # if defined(FEAT_EVAL) 4520 tvs != NULL ? tv_str(tvs, &arg_idx, &tofree) : 4521 # endif 4522 va_arg(ap, char *); 4523 if (str_arg == NULL) 4524 { 4525 str_arg = "[NULL]"; 4526 str_arg_l = 6; 4527 } 4528 /* make sure not to address string beyond the specified 4529 * precision !!! */ 4530 else if (!precision_specified) 4531 str_arg_l = strlen(str_arg); 4532 /* truncate string if necessary as requested by precision */ 4533 else if (precision == 0) 4534 str_arg_l = 0; 4535 else 4536 { 4537 /* Don't put the #if inside memchr(), it can be a 4538 * macro. */ 4539 /* memchr on HP does not like n > 2^31 !!! */ 4540 char *q = memchr(str_arg, '\0', 4541 precision <= (size_t)0x7fffffffL ? precision 4542 : (size_t)0x7fffffffL); 4543 str_arg_l = (q == NULL) ? precision 4544 : (size_t)(q - str_arg); 4545 } 4546 if (fmt_spec == 'S') 4547 { 4548 if (min_field_width != 0) 4549 min_field_width += STRLEN(str_arg) 4550 - mb_string2cells((char_u *)str_arg, -1); 4551 if (precision) 4552 { 4553 char_u *p1 = (char_u *)str_arg; 4554 size_t i; 4555 4556 for (i = 0; i < precision && *p1; i++) 4557 p1 += mb_ptr2len(p1); 4558 4559 str_arg_l = precision = p1 - (char_u *)str_arg; 4560 } 4561 } 4562 break; 4563 4564 default: 4565 break; 4566 } 4567 break; 4568 4569 case 'd': case 'u': 4570 case 'b': case 'B': 4571 case 'o': 4572 case 'x': case 'X': 4573 case 'p': 4574 { 4575 /* NOTE: the u, b, o, x, X and p conversion specifiers 4576 * imply the value is unsigned; d implies a signed 4577 * value */ 4578 4579 /* 0 if numeric argument is zero (or if pointer is 4580 * NULL for 'p'), +1 if greater than zero (or nonzero 4581 * for unsigned arguments), -1 if negative (unsigned 4582 * argument is never negative) */ 4583 int arg_sign = 0; 4584 4585 /* only defined for length modifier h, or for no 4586 * length modifiers */ 4587 int int_arg = 0; 4588 unsigned int uint_arg = 0; 4589 4590 /* only defined for length modifier l */ 4591 long int long_arg = 0; 4592 unsigned long int ulong_arg = 0; 4593 4594 # ifdef FEAT_NUM64 4595 /* only defined for length modifier ll */ 4596 varnumber_T llong_arg = 0; 4597 uvarnumber_T ullong_arg = 0; 4598 # endif 4599 4600 /* only defined for b conversion */ 4601 uvarnumber_T bin_arg = 0; 4602 4603 /* pointer argument value -only defined for p 4604 * conversion */ 4605 void *ptr_arg = NULL; 4606 4607 if (fmt_spec == 'p') 4608 { 4609 length_modifier = '\0'; 4610 ptr_arg = 4611 # if defined(FEAT_EVAL) 4612 tvs != NULL ? (void *)tv_str(tvs, &arg_idx, 4613 NULL) : 4614 # endif 4615 va_arg(ap, void *); 4616 if (ptr_arg != NULL) 4617 arg_sign = 1; 4618 } 4619 else if (fmt_spec == 'b' || fmt_spec == 'B') 4620 { 4621 bin_arg = 4622 # if defined(FEAT_EVAL) 4623 tvs != NULL ? 4624 (uvarnumber_T)tv_nr(tvs, &arg_idx) : 4625 # endif 4626 va_arg(ap, uvarnumber_T); 4627 if (bin_arg != 0) 4628 arg_sign = 1; 4629 } 4630 else if (fmt_spec == 'd') 4631 { 4632 /* signed */ 4633 switch (length_modifier) 4634 { 4635 case '\0': 4636 case 'h': 4637 /* char and short arguments are passed as int. */ 4638 int_arg = 4639 # if defined(FEAT_EVAL) 4640 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4641 # endif 4642 va_arg(ap, int); 4643 if (int_arg > 0) 4644 arg_sign = 1; 4645 else if (int_arg < 0) 4646 arg_sign = -1; 4647 break; 4648 case 'l': 4649 long_arg = 4650 # if defined(FEAT_EVAL) 4651 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4652 # endif 4653 va_arg(ap, long int); 4654 if (long_arg > 0) 4655 arg_sign = 1; 4656 else if (long_arg < 0) 4657 arg_sign = -1; 4658 break; 4659 # ifdef FEAT_NUM64 4660 case 'L': 4661 llong_arg = 4662 # if defined(FEAT_EVAL) 4663 tvs != NULL ? tv_nr(tvs, &arg_idx) : 4664 # endif 4665 va_arg(ap, varnumber_T); 4666 if (llong_arg > 0) 4667 arg_sign = 1; 4668 else if (llong_arg < 0) 4669 arg_sign = -1; 4670 break; 4671 # endif 4672 } 4673 } 4674 else 4675 { 4676 /* unsigned */ 4677 switch (length_modifier) 4678 { 4679 case '\0': 4680 case 'h': 4681 uint_arg = 4682 # if defined(FEAT_EVAL) 4683 tvs != NULL ? (unsigned) 4684 tv_nr(tvs, &arg_idx) : 4685 # endif 4686 va_arg(ap, unsigned int); 4687 if (uint_arg != 0) 4688 arg_sign = 1; 4689 break; 4690 case 'l': 4691 ulong_arg = 4692 # if defined(FEAT_EVAL) 4693 tvs != NULL ? (unsigned long) 4694 tv_nr(tvs, &arg_idx) : 4695 # endif 4696 va_arg(ap, unsigned long int); 4697 if (ulong_arg != 0) 4698 arg_sign = 1; 4699 break; 4700 # ifdef FEAT_NUM64 4701 case 'L': 4702 ullong_arg = 4703 # if defined(FEAT_EVAL) 4704 tvs != NULL ? (uvarnumber_T) 4705 tv_nr(tvs, &arg_idx) : 4706 # endif 4707 va_arg(ap, uvarnumber_T); 4708 if (ullong_arg != 0) 4709 arg_sign = 1; 4710 break; 4711 # endif 4712 } 4713 } 4714 4715 str_arg = tmp; 4716 str_arg_l = 0; 4717 4718 /* NOTE: 4719 * For d, i, u, o, x, and X conversions, if precision is 4720 * specified, the '0' flag should be ignored. This is so 4721 * with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux, 4722 * FreeBSD, NetBSD; but not with Perl. 4723 */ 4724 if (precision_specified) 4725 zero_padding = 0; 4726 if (fmt_spec == 'd') 4727 { 4728 if (force_sign && arg_sign >= 0) 4729 tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; 4730 /* leave negative numbers for sprintf to handle, to 4731 * avoid handling tricky cases like (short int)-32768 */ 4732 } 4733 else if (alternate_form) 4734 { 4735 if (arg_sign != 0 4736 && (fmt_spec == 'b' || fmt_spec == 'B' 4737 || fmt_spec == 'x' || fmt_spec == 'X') ) 4738 { 4739 tmp[str_arg_l++] = '0'; 4740 tmp[str_arg_l++] = fmt_spec; 4741 } 4742 /* alternate form should have no effect for p 4743 * conversion, but ... */ 4744 } 4745 4746 zero_padding_insertion_ind = str_arg_l; 4747 if (!precision_specified) 4748 precision = 1; /* default precision is 1 */ 4749 if (precision == 0 && arg_sign == 0) 4750 { 4751 /* When zero value is formatted with an explicit 4752 * precision 0, the resulting formatted string is 4753 * empty (d, i, u, b, B, o, x, X, p). */ 4754 } 4755 else 4756 { 4757 char f[6]; 4758 int f_l = 0; 4759 4760 /* construct a simple format string for sprintf */ 4761 f[f_l++] = '%'; 4762 if (!length_modifier) 4763 ; 4764 else if (length_modifier == 'L') 4765 { 4766 # ifdef FEAT_NUM64 4767 # ifdef MSWIN 4768 f[f_l++] = 'I'; 4769 f[f_l++] = '6'; 4770 f[f_l++] = '4'; 4771 # else 4772 f[f_l++] = 'l'; 4773 f[f_l++] = 'l'; 4774 # endif 4775 # else 4776 f[f_l++] = 'l'; 4777 # endif 4778 } 4779 else 4780 f[f_l++] = length_modifier; 4781 f[f_l++] = fmt_spec; 4782 f[f_l++] = '\0'; 4783 4784 if (fmt_spec == 'p') 4785 str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg); 4786 else if (fmt_spec == 'b' || fmt_spec == 'B') 4787 { 4788 char b[8 * sizeof(uvarnumber_T)]; 4789 size_t b_l = 0; 4790 uvarnumber_T bn = bin_arg; 4791 4792 do 4793 { 4794 b[sizeof(b) - ++b_l] = '0' + (bn & 0x1); 4795 bn >>= 1; 4796 } 4797 while (bn != 0); 4798 4799 memcpy(tmp + str_arg_l, b + sizeof(b) - b_l, b_l); 4800 str_arg_l += b_l; 4801 } 4802 else if (fmt_spec == 'd') 4803 { 4804 /* signed */ 4805 switch (length_modifier) 4806 { 4807 case '\0': 4808 case 'h': str_arg_l += sprintf( 4809 tmp + str_arg_l, f, int_arg); 4810 break; 4811 case 'l': str_arg_l += sprintf( 4812 tmp + str_arg_l, f, long_arg); 4813 break; 4814 # ifdef FEAT_NUM64 4815 case 'L': str_arg_l += sprintf( 4816 tmp + str_arg_l, f, llong_arg); 4817 break; 4818 # endif 4819 } 4820 } 4821 else 4822 { 4823 /* unsigned */ 4824 switch (length_modifier) 4825 { 4826 case '\0': 4827 case 'h': str_arg_l += sprintf( 4828 tmp + str_arg_l, f, uint_arg); 4829 break; 4830 case 'l': str_arg_l += sprintf( 4831 tmp + str_arg_l, f, ulong_arg); 4832 break; 4833 # ifdef FEAT_NUM64 4834 case 'L': str_arg_l += sprintf( 4835 tmp + str_arg_l, f, ullong_arg); 4836 break; 4837 # endif 4838 } 4839 } 4840 4841 /* include the optional minus sign and possible 4842 * "0x" in the region before the zero padding 4843 * insertion point */ 4844 if (zero_padding_insertion_ind < str_arg_l 4845 && tmp[zero_padding_insertion_ind] == '-') 4846 zero_padding_insertion_ind++; 4847 if (zero_padding_insertion_ind + 1 < str_arg_l 4848 && tmp[zero_padding_insertion_ind] == '0' 4849 && (tmp[zero_padding_insertion_ind + 1] == 'x' 4850 || tmp[zero_padding_insertion_ind + 1] == 'X')) 4851 zero_padding_insertion_ind += 2; 4852 } 4853 4854 { 4855 size_t num_of_digits = str_arg_l 4856 - zero_padding_insertion_ind; 4857 4858 if (alternate_form && fmt_spec == 'o' 4859 /* unless zero is already the first 4860 * character */ 4861 && !(zero_padding_insertion_ind < str_arg_l 4862 && tmp[zero_padding_insertion_ind] == '0')) 4863 { 4864 /* assure leading zero for alternate-form 4865 * octal numbers */ 4866 if (!precision_specified 4867 || precision < num_of_digits + 1) 4868 { 4869 /* precision is increased to force the 4870 * first character to be zero, except if a 4871 * zero value is formatted with an 4872 * explicit precision of zero */ 4873 precision = num_of_digits + 1; 4874 } 4875 } 4876 /* zero padding to specified precision? */ 4877 if (num_of_digits < precision) 4878 number_of_zeros_to_pad = precision - num_of_digits; 4879 } 4880 /* zero padding to specified minimal field width? */ 4881 if (!justify_left && zero_padding) 4882 { 4883 int n = (int)(min_field_width - (str_arg_l 4884 + number_of_zeros_to_pad)); 4885 if (n > 0) 4886 number_of_zeros_to_pad += n; 4887 } 4888 break; 4889 } 4890 4891 # ifdef FEAT_FLOAT 4892 case 'f': 4893 case 'F': 4894 case 'e': 4895 case 'E': 4896 case 'g': 4897 case 'G': 4898 { 4899 /* Floating point. */ 4900 double f; 4901 double abs_f; 4902 char format[40]; 4903 int l; 4904 int remove_trailing_zeroes = FALSE; 4905 4906 f = 4907 # if defined(FEAT_EVAL) 4908 tvs != NULL ? tv_float(tvs, &arg_idx) : 4909 # endif 4910 va_arg(ap, double); 4911 abs_f = f < 0 ? -f : f; 4912 4913 if (fmt_spec == 'g' || fmt_spec == 'G') 4914 { 4915 /* Would be nice to use %g directly, but it prints 4916 * "1.0" as "1", we don't want that. */ 4917 if ((abs_f >= 0.001 && abs_f < 10000000.0) 4918 || abs_f == 0.0) 4919 fmt_spec = ASCII_ISUPPER(fmt_spec) ? 'F' : 'f'; 4920 else 4921 fmt_spec = fmt_spec == 'g' ? 'e' : 'E'; 4922 remove_trailing_zeroes = TRUE; 4923 } 4924 4925 if ((fmt_spec == 'f' || fmt_spec == 'F') && 4926 # ifdef VAX 4927 abs_f > 1.0e38 4928 # else 4929 abs_f > 1.0e307 4930 # endif 4931 ) 4932 { 4933 /* Avoid a buffer overflow */ 4934 STRCPY(tmp, infinity_str(f > 0.0, fmt_spec, 4935 force_sign, space_for_positive)); 4936 str_arg_l = STRLEN(tmp); 4937 zero_padding = 0; 4938 } 4939 else 4940 { 4941 if (isnan(f)) 4942 { 4943 /* Not a number: nan or NAN */ 4944 STRCPY(tmp, ASCII_ISUPPER(fmt_spec) ? "NAN" 4945 : "nan"); 4946 str_arg_l = 3; 4947 zero_padding = 0; 4948 } 4949 else if (isinf(f)) 4950 { 4951 STRCPY(tmp, infinity_str(f > 0.0, fmt_spec, 4952 force_sign, space_for_positive)); 4953 str_arg_l = STRLEN(tmp); 4954 zero_padding = 0; 4955 } 4956 else 4957 { 4958 /* Regular float number */ 4959 format[0] = '%'; 4960 l = 1; 4961 if (force_sign) 4962 format[l++] = space_for_positive ? ' ' : '+'; 4963 if (precision_specified) 4964 { 4965 size_t max_prec = TMP_LEN - 10; 4966 4967 /* Make sure we don't get more digits than we 4968 * have room for. */ 4969 if ((fmt_spec == 'f' || fmt_spec == 'F') 4970 && abs_f > 1.0) 4971 max_prec -= (size_t)log10(abs_f); 4972 if (precision > max_prec) 4973 precision = max_prec; 4974 l += sprintf(format + l, ".%d", (int)precision); 4975 } 4976 format[l] = fmt_spec == 'F' ? 'f' : fmt_spec; 4977 format[l + 1] = NUL; 4978 4979 str_arg_l = sprintf(tmp, format, f); 4980 } 4981 4982 if (remove_trailing_zeroes) 4983 { 4984 int i; 4985 char *tp; 4986 4987 /* Using %g or %G: remove superfluous zeroes. */ 4988 if (fmt_spec == 'f' || fmt_spec == 'F') 4989 tp = tmp + str_arg_l - 1; 4990 else 4991 { 4992 tp = (char *)vim_strchr((char_u *)tmp, 4993 fmt_spec == 'e' ? 'e' : 'E'); 4994 if (tp != NULL) 4995 { 4996 /* Remove superfluous '+' and leading 4997 * zeroes from the exponent. */ 4998 if (tp[1] == '+') 4999 { 5000 /* Change "1.0e+07" to "1.0e07" */ 5001 STRMOVE(tp + 1, tp + 2); 5002 --str_arg_l; 5003 } 5004 i = (tp[1] == '-') ? 2 : 1; 5005 while (tp[i] == '0') 5006 { 5007 /* Change "1.0e07" to "1.0e7" */ 5008 STRMOVE(tp + i, tp + i + 1); 5009 --str_arg_l; 5010 } 5011 --tp; 5012 } 5013 } 5014 5015 if (tp != NULL && !precision_specified) 5016 /* Remove trailing zeroes, but keep the one 5017 * just after a dot. */ 5018 while (tp > tmp + 2 && *tp == '0' 5019 && tp[-1] != '.') 5020 { 5021 STRMOVE(tp, tp + 1); 5022 --tp; 5023 --str_arg_l; 5024 } 5025 } 5026 else 5027 { 5028 char *tp; 5029 5030 /* Be consistent: some printf("%e") use 1.0e+12 5031 * and some 1.0e+012. Remove one zero in the last 5032 * case. */ 5033 tp = (char *)vim_strchr((char_u *)tmp, 5034 fmt_spec == 'e' ? 'e' : 'E'); 5035 if (tp != NULL && (tp[1] == '+' || tp[1] == '-') 5036 && tp[2] == '0' 5037 && vim_isdigit(tp[3]) 5038 && vim_isdigit(tp[4])) 5039 { 5040 STRMOVE(tp + 2, tp + 3); 5041 --str_arg_l; 5042 } 5043 } 5044 } 5045 if (zero_padding && min_field_width > str_arg_l 5046 && (tmp[0] == '-' || force_sign)) 5047 { 5048 /* padding 0's should be inserted after the sign */ 5049 number_of_zeros_to_pad = min_field_width - str_arg_l; 5050 zero_padding_insertion_ind = 1; 5051 } 5052 str_arg = tmp; 5053 break; 5054 } 5055 # endif 5056 5057 default: 5058 /* unrecognized conversion specifier, keep format string 5059 * as-is */ 5060 zero_padding = 0; /* turn zero padding off for non-numeric 5061 conversion */ 5062 justify_left = 1; 5063 min_field_width = 0; /* reset flags */ 5064 5065 /* discard the unrecognized conversion, just keep * 5066 * the unrecognized conversion character */ 5067 str_arg = p; 5068 str_arg_l = 0; 5069 if (*p != NUL) 5070 str_arg_l++; /* include invalid conversion specifier 5071 unchanged if not at end-of-string */ 5072 break; 5073 } 5074 5075 if (*p != NUL) 5076 p++; /* step over the just processed conversion specifier */ 5077 5078 /* insert padding to the left as requested by min_field_width; 5079 * this does not include the zero padding in case of numerical 5080 * conversions*/ 5081 if (!justify_left) 5082 { 5083 /* left padding with blank or zero */ 5084 int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad)); 5085 5086 if (pn > 0) 5087 { 5088 if (str_l < str_m) 5089 { 5090 size_t avail = str_m - str_l; 5091 5092 vim_memset(str + str_l, zero_padding ? '0' : ' ', 5093 (size_t)pn > avail ? avail 5094 : (size_t)pn); 5095 } 5096 str_l += pn; 5097 } 5098 } 5099 5100 /* zero padding as requested by the precision or by the minimal 5101 * field width for numeric conversions required? */ 5102 if (number_of_zeros_to_pad == 0) 5103 { 5104 /* will not copy first part of numeric right now, * 5105 * force it to be copied later in its entirety */ 5106 zero_padding_insertion_ind = 0; 5107 } 5108 else 5109 { 5110 /* insert first part of numerics (sign or '0x') before zero 5111 * padding */ 5112 int zn = (int)zero_padding_insertion_ind; 5113 5114 if (zn > 0) 5115 { 5116 if (str_l < str_m) 5117 { 5118 size_t avail = str_m - str_l; 5119 5120 mch_memmove(str + str_l, str_arg, 5121 (size_t)zn > avail ? avail 5122 : (size_t)zn); 5123 } 5124 str_l += zn; 5125 } 5126 5127 /* insert zero padding as requested by the precision or min 5128 * field width */ 5129 zn = (int)number_of_zeros_to_pad; 5130 if (zn > 0) 5131 { 5132 if (str_l < str_m) 5133 { 5134 size_t avail = str_m - str_l; 5135 5136 vim_memset(str + str_l, '0', 5137 (size_t)zn > avail ? avail 5138 : (size_t)zn); 5139 } 5140 str_l += zn; 5141 } 5142 } 5143 5144 /* insert formatted string 5145 * (or as-is conversion specifier for unknown conversions) */ 5146 { 5147 int sn = (int)(str_arg_l - zero_padding_insertion_ind); 5148 5149 if (sn > 0) 5150 { 5151 if (str_l < str_m) 5152 { 5153 size_t avail = str_m - str_l; 5154 5155 mch_memmove(str + str_l, 5156 str_arg + zero_padding_insertion_ind, 5157 (size_t)sn > avail ? avail : (size_t)sn); 5158 } 5159 str_l += sn; 5160 } 5161 } 5162 5163 /* insert right padding */ 5164 if (justify_left) 5165 { 5166 /* right blank padding to the field width */ 5167 int pn = (int)(min_field_width 5168 - (str_arg_l + number_of_zeros_to_pad)); 5169 5170 if (pn > 0) 5171 { 5172 if (str_l < str_m) 5173 { 5174 size_t avail = str_m - str_l; 5175 5176 vim_memset(str + str_l, ' ', 5177 (size_t)pn > avail ? avail 5178 : (size_t)pn); 5179 } 5180 str_l += pn; 5181 } 5182 } 5183 vim_free(tofree); 5184 } 5185 } 5186 5187 if (str_m > 0) 5188 { 5189 /* make sure the string is nul-terminated even at the expense of 5190 * overwriting the last character (shouldn't happen, but just in case) 5191 * */ 5192 str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0'; 5193 } 5194 5195 if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN) 5196 emsg(_("E767: Too many arguments to printf()")); 5197 5198 /* Return the number of characters formatted (excluding trailing nul 5199 * character), that is, the number of characters that would have been 5200 * written to the buffer if it were large enough. */ 5201 return (int)str_l; 5202 } 5203 5204 #endif /* PROTO */ 5205