1 /* $OpenBSD: curses.priv.h,v 1.34 2010/09/06 17:26:17 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 * and: Thomas E. Dickey 1996-on * 35 ****************************************************************************/ 36 37 38 /* 39 * $Id: curses.priv.h,v 1.34 2010/09/06 17:26:17 nicm Exp $ 40 * 41 * curses.priv.h 42 * 43 * Header file for curses library objects which are private to 44 * the library. 45 * 46 */ 47 48 #ifndef CURSES_PRIV_H 49 #define CURSES_PRIV_H 1 50 51 #if !defined(NCURSES_IMPEXP) 52 # define NCURSES_IMPEXP /* nothing */ 53 #endif 54 #if !defined(NCURSES_API) 55 # define NCURSES_API /* nothing */ 56 #endif 57 #if !defined(NCURSES_EXPORT) 58 # define NCURSES_EXPORT(type) NCURSES_IMPEXP type NCURSES_API 59 #endif 60 #if !defined(NCURSES_EXPORT_VAR) 61 # define NCURSES_EXPORT_VAR(type) NCURSES_IMPEXP type 62 #endif 63 64 #ifdef __cplusplus 65 extern "C" { 66 #endif 67 68 #include <ncurses_cfg.h> 69 70 #if USE_RCS_IDS 71 #define MODULE_ID(id) static const char Ident[] = id; 72 #else 73 #define MODULE_ID(id) /*nothing*/ 74 #endif 75 76 #include <stdlib.h> 77 #include <string.h> 78 #include <sys/types.h> 79 80 #if HAVE_UNISTD_H 81 #include <unistd.h> 82 #endif 83 84 #if HAVE_SYS_BSDTYPES_H 85 #include <sys/bsdtypes.h> /* needed for ISC */ 86 #endif 87 88 #if HAVE_LIMITS_H 89 # include <limits.h> 90 #elif HAVE_SYS_PARAM_H 91 # include <sys/param.h> 92 #endif 93 94 #include <assert.h> 95 #include <stdio.h> 96 97 #include <errno.h> 98 99 #ifndef PATH_MAX 100 # if defined(_POSIX_PATH_MAX) 101 # define PATH_MAX _POSIX_PATH_MAX 102 # elif defined(MAXPATHLEN) 103 # define PATH_MAX MAXPATHLEN 104 # else 105 # define PATH_MAX 255 /* the Posix minimum path-size */ 106 # endif 107 #endif 108 109 #if DECL_ERRNO 110 extern int errno; 111 #endif 112 113 #include <nc_panel.h> 114 115 /* Some systems have a broken 'select()', but workable 'poll()'. Use that */ 116 #if HAVE_WORKING_POLL 117 #define USE_FUNC_POLL 1 118 #if HAVE_POLL_H 119 #include <poll.h> 120 #else 121 #include <sys/poll.h> 122 #endif 123 #else 124 #define USE_FUNC_POLL 0 125 #endif 126 127 /* include signal.h before curses.h to work-around defect in glibc 2.1.3 */ 128 #include <signal.h> 129 130 /* Alessandro Rubini's GPM (general-purpose mouse) */ 131 #if HAVE_LIBGPM && HAVE_GPM_H 132 #define USE_GPM_SUPPORT 1 133 #else 134 #define USE_GPM_SUPPORT 0 135 #endif 136 137 /* QNX mouse support */ 138 #if defined(__QNX__) && !defined(__QNXNTO__) 139 #define USE_QNX_MOUSE 1 140 #else 141 #define USE_QNX_MOUSE 0 142 #endif 143 144 /* EMX mouse support */ 145 #ifdef __EMX__ 146 #define USE_EMX_MOUSE 1 147 #else 148 #define USE_EMX_MOUSE 0 149 #endif 150 151 #define DEFAULT_MAXCLICK 166 152 #define EV_MAX 8 /* size of mouse circular event queue */ 153 154 /* 155 * If we don't have signals to support it, don't add a sigwinch handler. 156 * In any case, resizing is an extended feature. Use it if we've got it. 157 */ 158 #if !NCURSES_EXT_FUNCS 159 #undef HAVE_SIZECHANGE 160 #define HAVE_SIZECHANGE 0 161 #endif 162 163 #if HAVE_SIZECHANGE && USE_SIGWINCH && defined(SIGWINCH) 164 #define USE_SIZECHANGE 1 165 #else 166 #define USE_SIZECHANGE 0 167 #undef USE_SIGWINCH 168 #define USE_SIGWINCH 0 169 #endif 170 171 /* 172 * If desired, one can configure this, disabling environment variables that 173 * point to custom terminfo/termcap locations. 174 */ 175 #ifdef USE_ROOT_ENVIRON 176 #ifdef __OpenBSD__ 177 #define use_terminfo_vars() (!issetugid()) 178 #else 179 #define use_terminfo_vars() 1 180 #endif 181 #else 182 #define use_terminfo_vars() _nc_env_access() 183 extern NCURSES_EXPORT(int) _nc_env_access (void); 184 #endif 185 186 /* 187 * Not all platforms have memmove; some have an equivalent bcopy. (Some may 188 * have neither). 189 */ 190 #if USE_OK_BCOPY 191 #define memmove(d,s,n) bcopy(s,d,n) 192 #elif USE_MY_MEMMOVE 193 #define memmove(d,s,n) _nc_memmove(d,s,n) 194 extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t); 195 #endif 196 197 /* 198 * Scroll hints are useless when hashmap is used 199 */ 200 #if !USE_SCROLL_HINTS 201 #if !USE_HASHMAP 202 #define USE_SCROLL_HINTS 1 203 #else 204 #define USE_SCROLL_HINTS 0 205 #endif 206 #endif 207 208 #if USE_SCROLL_HINTS 209 #define if_USE_SCROLL_HINTS(stmt) stmt 210 #else 211 #define if_USE_SCROLL_HINTS(stmt) /*nothing*/ 212 #endif 213 214 /* 215 * Note: ht/cbt expansion flakes out randomly under Linux 1.1.47, but only 216 * when we're throwing control codes at the screen at high volume. To see 217 * this, re-enable USE_HARD_TABS and run worm for a while. Other systems 218 * probably don't want to define this either due to uncertainties about tab 219 * delays and expansion in raw mode. 220 */ 221 222 #define TRIES struct tries 223 typedef TRIES { 224 TRIES *child; /* ptr to child. NULL if none */ 225 TRIES *sibling; /* ptr to sibling. NULL if none */ 226 unsigned char ch; /* character at this node */ 227 unsigned short value; /* code of string so far. 0 if none. */ 228 #undef TRIES 229 } TRIES; 230 231 /* 232 * Common/troublesome character definitions 233 */ 234 #define StringOf(ch) {ch, 0} 235 236 #define L_BRACE '{' 237 #define R_BRACE '}' 238 #define S_QUOTE '\'' 239 #define D_QUOTE '"' 240 241 #define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~" 242 243 /* 244 * Structure for palette tables 245 */ 246 247 typedef struct 248 { 249 short red, green, blue; /* what color_content() returns */ 250 short r, g, b; /* params to init_color() */ 251 int init; /* true if we called init_color() */ 252 } 253 color_t; 254 255 #define MAXCOLUMNS 135 256 #define MAXLINES 66 257 #define FIFO_SIZE MAXCOLUMNS+2 /* for nocbreak mode input */ 258 259 #define ACS_LEN 128 260 261 #define WINDOWLIST struct _win_list 262 263 #if USE_WIDEC_SUPPORT 264 #define _nc_bkgd _bkgrnd 265 #define _XOPEN_SOURCE_EXTENDED 1 266 #else 267 #undef _XOPEN_SOURCE_EXTENDED 268 #define _nc_bkgd _bkgd 269 #define wgetbkgrnd(win, wch) *wch = win->_bkgd 270 #define wbkgrnd wbkgd 271 #endif 272 273 #undef NCURSES_OPAQUE 274 #define NCURSES_INTERNALS 1 275 #define NCURSES_OPAQUE 0 276 277 #include <curses.h> /* we'll use -Ipath directive to get the right one! */ 278 #include <term.h> 279 #include <term_entry.h> 280 #include <nc_tparm.h> 281 282 #if NCURSES_EXT_COLORS && USE_WIDEC_SUPPORT 283 #define if_EXT_COLORS(stmt) stmt 284 #define NetPair(value,p) (value).ext_color = (p), \ 285 AttrOf(value) &= ALL_BUT_COLOR, \ 286 AttrOf(value) |= (A_COLOR & COLOR_PAIR((p > 255) ? 255 : p)) 287 #define SetPair(value,p) (value).ext_color = (p) 288 #define GetPair(value) (value).ext_color 289 #define unColor(n) (AttrOf(n) & ALL_BUT_COLOR) 290 #define GET_WINDOW_PAIR(w) (w)->_color 291 #define SET_WINDOW_PAIR(w,p) (w)->_color = (p) 292 #define SameAttrOf(a,b) (AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b)) 293 #define VIDATTR(attr, pair) vid_attr(attr, pair, 0) 294 #else 295 #define if_EXT_COLORS(stmt) /* nothing */ 296 #define SetPair(value,p) RemAttr(value, A_COLOR), \ 297 SetAttr(value, AttrOf(value) | (A_COLOR & COLOR_PAIR(p))) 298 #define GetPair(value) PAIR_NUMBER(AttrOf(value)) 299 #define unColor(n) (AttrOf(n) & ALL_BUT_COLOR) 300 #define GET_WINDOW_PAIR(w) PAIR_NUMBER(WINDOW_ATTRS(w)) 301 #define SET_WINDOW_PAIR(w,p) WINDOW_ATTRS(w) &= ALL_BUT_COLOR, \ 302 WINDOW_ATTRS(w) |= (A_COLOR & COLOR_PAIR(p)) 303 #define SameAttrOf(a,b) (AttrOf(a) == AttrOf(b)) 304 #define VIDATTR(attr, pair) vidattr(attr) 305 #endif 306 307 #if NCURSES_NO_PADDING 308 #define GetNoPadding(sp) ((sp) ? (sp)->_no_padding : _nc_prescreen._no_padding) 309 #define SetNoPadding(sp) _nc_set_no_padding(sp) 310 extern NCURSES_EXPORT(void) _nc_set_no_padding(SCREEN *); 311 #else 312 #define GetNoPadding(sp) FALSE 313 #define SetNoPadding(sp) /*nothing*/ 314 #endif 315 316 #define WINDOW_ATTRS(w) ((w)->_attrs) 317 318 #define SCREEN_ATTRS(s) (*((s)->_current_attr)) 319 #define GET_SCREEN_PAIR(s) GetPair(SCREEN_ATTRS(s)) 320 #define SET_SCREEN_PAIR(s,p) SetPair(SCREEN_ATTRS(s), p) 321 322 #if USE_REENTRANT 323 NCURSES_EXPORT(int *) _nc_ptr_Lines (void); 324 NCURSES_EXPORT(int *) _nc_ptr_Cols (void); 325 #define ptrLines() (SP ? &(SP->_LINES) : &(_nc_prescreen._LINES)) 326 #define ptrCols() (SP ? &(SP->_COLS) : &(_nc_prescreen._COLS)) 327 #define SET_LINES(value) *_nc_ptr_Lines() = value 328 #define SET_COLS(value) *_nc_ptr_Cols() = value 329 #else 330 #define ptrLines() &LINES 331 #define ptrCols() &COLS 332 #define SET_LINES(value) LINES = value 333 #define SET_COLS(value) COLS = value 334 #endif 335 336 #define TR_MUTEX(data) _tracef("%s@%d: me:%08lX COUNT:%2u/%2d/%6d/%2d/%s%9u: " #data, \ 337 __FILE__, __LINE__, \ 338 (unsigned long) (pthread_self()), \ 339 data.__data.__lock, \ 340 data.__data.__count, \ 341 data.__data.__owner, \ 342 data.__data.__kind, \ 343 (data.__data.__nusers > 5) ? " OOPS " : "", \ 344 data.__data.__nusers) 345 #define TR_GLOBAL_MUTEX(name) TR_MUTEX(_nc_globals.mutex_##name) 346 347 #ifdef USE_PTHREADS 348 349 #if USE_REENTRANT 350 #include <pthread.h> 351 extern NCURSES_EXPORT(void) _nc_init_pthreads(void); 352 extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *); 353 extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *); 354 extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *); 355 extern NCURSES_EXPORT(int) _nc_mutex_unlock(pthread_mutex_t *); 356 #define _nc_lock_global(name) _nc_mutex_lock(&_nc_globals.mutex_##name) 357 #define _nc_try_global(name) _nc_mutex_trylock(&_nc_globals.mutex_##name) 358 #define _nc_unlock_global(name) _nc_mutex_unlock(&_nc_globals.mutex_##name) 359 360 #else 361 #error POSIX threads requires --enable-reentrant option 362 #endif 363 364 #if USE_WEAK_SYMBOLS 365 #if defined(__GNUC__) 366 # if defined __USE_ISOC99 367 # define _cat_pragma(exp) _Pragma(#exp) 368 # define _weak_pragma(exp) _cat_pragma(weak name) 369 # else 370 # define _weak_pragma(exp) 371 # endif 372 # define _declare(name) __extension__ extern __typeof__(name) name 373 # define weak_symbol(name) _weak_pragma(name) _declare(name) __attribute__((weak)) 374 #endif 375 #endif 376 377 #ifdef USE_PTHREADS 378 # if USE_WEAK_SYMBOLS 379 weak_symbol(pthread_sigmask); 380 weak_symbol(pthread_self); 381 weak_symbol(pthread_equal); 382 weak_symbol(pthread_mutex_init); 383 weak_symbol(pthread_mutex_lock); 384 weak_symbol(pthread_mutex_unlock); 385 weak_symbol(pthread_mutex_trylock); 386 weak_symbol(pthread_mutexattr_settype); 387 weak_symbol(pthread_mutexattr_init); 388 extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *); 389 # undef sigprocmask 390 # define sigprocmask _nc_sigprocmask 391 # endif 392 #endif 393 394 #if HAVE_NANOSLEEP 395 #undef HAVE_NANOSLEEP 396 #define HAVE_NANOSLEEP 0 /* nanosleep suspends all threads */ 397 #endif 398 399 #else /* !USE_PTHREADS */ 400 401 #define _nc_init_pthreads() /* nothing */ 402 #define _nc_mutex_init(obj) /* nothing */ 403 404 #define _nc_lock_global(name) /* nothing */ 405 #define _nc_try_global(name) 0 406 #define _nc_unlock_global(name) /* nothing */ 407 408 #endif /* USE_PTHREADS */ 409 410 #if HAVE_GETTIMEOFDAY 411 # define PRECISE_GETTIME 1 412 # define TimeType struct timeval 413 #else 414 # define PRECISE_GETTIME 0 415 # define TimeType time_t 416 #endif 417 418 /* 419 * Definitions for color pairs 420 */ 421 typedef unsigned colorpair_t; /* type big enough to store PAIR_OF() */ 422 #define C_SHIFT 9 /* we need more bits than there are colors */ 423 #define C_MASK ((1 << C_SHIFT) - 1) 424 #define PAIR_OF(fg, bg) ((((fg) & C_MASK) << C_SHIFT) | ((bg) & C_MASK)) 425 #define isDefaultColor(c) ((c) >= COLOR_DEFAULT || (c) < 0) 426 427 #define COLOR_DEFAULT C_MASK 428 429 #if defined(USE_TERMLIB) && !defined(NEED_NCURSES_CH_T) 430 431 #undef NCURSES_CH_T /* this is not a termlib feature */ 432 #define NCURSES_CH_T void /* ...but we need a pointer in SCREEN */ 433 434 #endif /* USE_TERMLIB */ 435 436 #ifndef USE_TERMLIB 437 struct ldat 438 { 439 NCURSES_CH_T *text; /* text of the line */ 440 NCURSES_SIZE_T firstchar; /* first changed character in the line */ 441 NCURSES_SIZE_T lastchar; /* last changed character in the line */ 442 NCURSES_SIZE_T oldindex; /* index of the line at last update */ 443 }; 444 #endif /* USE_TERMLIB */ 445 446 typedef enum { 447 M_XTERM = -1 /* use xterm's mouse tracking? */ 448 ,M_NONE = 0 /* no mouse device */ 449 #if USE_GPM_SUPPORT 450 ,M_GPM /* use GPM */ 451 #endif 452 #if USE_SYSMOUSE 453 ,M_SYSMOUSE /* FreeBSD sysmouse on console */ 454 #endif 455 } MouseType; 456 457 /* 458 * Structures for scrolling. 459 */ 460 461 typedef struct { 462 unsigned long hashval; 463 int oldcount, newcount; 464 int oldindex, newindex; 465 } HASHMAP; 466 467 /* 468 * Structures for soft labels. 469 */ 470 471 struct _SLK; 472 473 #ifndef USE_TERMLIB 474 475 typedef struct 476 { 477 char *ent_text; /* text for the label */ 478 char *form_text; /* formatted text (left/center/...) */ 479 int ent_x; /* x coordinate of this field */ 480 char dirty; /* this label has changed */ 481 char visible; /* field is visible */ 482 } slk_ent; 483 484 typedef struct _SLK { 485 char dirty; /* all labels have changed */ 486 char hidden; /* soft labels are hidden */ 487 WINDOW *win; 488 slk_ent *ent; 489 short maxlab; /* number of available labels */ 490 short labcnt; /* number of allocated labels */ 491 short maxlen; /* length of labels */ 492 NCURSES_CH_T attr; /* soft label attribute */ 493 } SLK; 494 495 #endif /* USE_TERMLIB */ 496 497 typedef struct { 498 WINDOW *win; /* the window used in the hook */ 499 int line; /* lines to take, < 0 => from bottom*/ 500 int (*hook)(WINDOW *, int); /* callback for user */ 501 } ripoff_t; 502 503 #if USE_GPM_SUPPORT 504 #undef buttons /* term.h defines this, and gpm uses it! */ 505 #include <gpm.h> 506 507 #ifdef HAVE_LIBDL 508 /* link dynamically to GPM */ 509 typedef int *TYPE_gpm_fd; 510 typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int); 511 typedef int (*TYPE_Gpm_Close) (void); 512 typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *); 513 514 #define my_gpm_fd SP->_mouse_gpm_fd 515 #define my_Gpm_Open SP->_mouse_Gpm_Open 516 #define my_Gpm_Close SP->_mouse_Gpm_Close 517 #define my_Gpm_GetEvent SP->_mouse_Gpm_GetEvent 518 #else 519 /* link statically to GPM */ 520 #define my_gpm_fd &gpm_fd 521 #define my_Gpm_Open Gpm_Open 522 #define my_Gpm_Close Gpm_Close 523 #define my_Gpm_GetEvent Gpm_GetEvent 524 #endif /* HAVE_LIBDL */ 525 #endif /* USE_GPM_SUPPORT */ 526 527 typedef struct { 528 long sequence; 529 bool last_used; 530 char *fix_sgr0; /* this holds the filtered sgr0 string */ 531 char *last_bufp; /* help with fix_sgr0 leak */ 532 TERMINAL *last_term; 533 } TGETENT_CACHE; 534 535 #define TGETENT_MAX 4 536 537 /* 538 * State of tparm(). 539 */ 540 #define STACKSIZE 20 541 542 typedef struct { 543 union { 544 int num; 545 char *str; 546 } data; 547 bool num_type; 548 } STACK_FRAME; 549 550 #define NUM_VARS 26 551 552 typedef struct { 553 #ifdef TRACE 554 const char *tname; 555 #endif 556 const char *tparam_base; 557 558 STACK_FRAME stack[STACKSIZE]; 559 int stack_ptr; 560 561 char *out_buff; 562 size_t out_size; 563 size_t out_used; 564 565 char *fmt_buff; 566 size_t fmt_size; 567 568 int dynamic_var[NUM_VARS]; 569 int static_vars[NUM_VARS]; 570 } TPARM_STATE; 571 572 typedef struct { 573 char *text; 574 size_t size; 575 } TRACEBUF; 576 577 /* 578 * The filesystem database normally uses a single-letter for the lower level 579 * of directories. Use a hexadecimal code for filesystems which do not 580 * preserve mixed-case names. 581 */ 582 #if MIXEDCASE_FILENAMES 583 #define LEAF_FMT "%c" 584 #else 585 #define LEAF_FMT "%02x" 586 #endif 587 588 /* 589 * TRACEMSE_FMT is no longer than 80 columns, there are 5 numbers that 590 * could at most have 10 digits, and the mask contains no more than 32 bits 591 * with each bit representing less than 15 characters. Usually the whole 592 * string is less than 80 columns, but this buffer size is an absolute 593 * limit. 594 */ 595 #define TRACEMSE_MAX (80 + (5 * 10) + (32 * 15)) 596 #define TRACEMSE_FMT "id %2d at (%2d, %2d, %2d) state %4lx = {" /* } */ 597 598 /* 599 * Global data which is not specific to a screen. 600 */ 601 typedef struct { 602 SIG_ATOMIC_T have_sigwinch; 603 SIG_ATOMIC_T cleanup_nested; 604 605 bool init_signals; 606 bool init_screen; 607 608 const char *comp_sourcename; 609 char *comp_termtype; 610 611 bool have_tic_directory; 612 bool keep_tic_directory; 613 const char *tic_directory; 614 615 char *dbi_list; 616 int dbi_size; 617 618 char *first_name; 619 char **keyname_table; 620 621 int slk_format; 622 623 char *safeprint_buf; 624 size_t safeprint_used; 625 626 TGETENT_CACHE tgetent_cache[TGETENT_MAX]; 627 int tgetent_index; 628 long tgetent_sequence; 629 630 WINDOWLIST *_nc_windowlist; 631 #define _nc_windows _nc_globals._nc_windowlist 632 633 #if USE_HOME_TERMINFO 634 char *home_terminfo; 635 #endif 636 637 #if !USE_SAFE_SPRINTF 638 int safeprint_cols; 639 int safeprint_rows; 640 #endif 641 642 #ifdef TRACE 643 bool init_trace; 644 char trace_fname[PATH_MAX]; 645 int trace_level; 646 FILE *trace_fp; 647 648 char *tracearg_buf; 649 size_t tracearg_used; 650 651 TRACEBUF *tracebuf_ptr; 652 size_t tracebuf_used; 653 654 char tracechr_buf[40]; 655 656 char *tracedmp_buf; 657 size_t tracedmp_used; 658 659 unsigned char *tracetry_buf; 660 size_t tracetry_used; 661 662 #define _nc_globals_traceatr_color_buf_size 80 663 char traceatr_color_buf[2][_nc_globals_traceatr_color_buf_size]; 664 int traceatr_color_sel; 665 int traceatr_color_last; 666 667 #endif /* TRACE */ 668 669 #ifdef USE_PTHREADS 670 pthread_mutex_t mutex_curses; 671 pthread_mutex_t mutex_tst_tracef; 672 pthread_mutex_t mutex_tracef; 673 int nested_tracef; 674 int use_pthreads; 675 #define _nc_use_pthreads _nc_globals.use_pthreads 676 #endif 677 } NCURSES_GLOBALS; 678 679 extern NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals; 680 681 #define N_RIPS 5 682 683 /* 684 * Global data which can be swept up into a SCREEN when one is created. 685 * It may be modified before the next SCREEN is created. 686 */ 687 typedef struct { 688 bool use_env; 689 bool filter_mode; 690 attr_t previous_attr; 691 ripoff_t rippedoff[N_RIPS]; 692 ripoff_t *rsp; 693 TPARM_STATE tparm_state; 694 TTY *saved_tty; /* savetty/resetty information */ 695 #if NCURSES_NO_PADDING 696 bool _no_padding; /* flag to set if padding disabled */ 697 #endif 698 #if BROKEN_LINKER || USE_REENTRANT 699 chtype *real_acs_map; 700 int _LINES; 701 int _COLS; 702 TERMINAL *_cur_term; 703 #ifdef TRACE 704 long _outchars; 705 const char *_tputs_trace; 706 #endif 707 #endif 708 } NCURSES_PRESCREEN; 709 710 #define ripoff_sp _nc_prescreen.rsp 711 #define ripoff_stack _nc_prescreen.rippedoff 712 713 extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen; 714 715 /* 716 * The SCREEN structure. 717 */ 718 719 struct screen { 720 int _ifd; /* input file ptr for screen */ 721 FILE *_ofp; /* output file ptr for screen */ 722 char *_setbuf; /* buffered I/O for output */ 723 bool _filtered; /* filter() was called */ 724 bool _buffered; /* setvbuf uses _setbuf data */ 725 int _checkfd; /* filedesc for typeahead check */ 726 TERMINAL *_term; /* terminal type information */ 727 TTY _saved_tty; /* savetty/resetty information */ 728 NCURSES_SIZE_T _lines; /* screen lines */ 729 NCURSES_SIZE_T _columns; /* screen columns */ 730 731 NCURSES_SIZE_T _lines_avail; /* lines available for stdscr */ 732 NCURSES_SIZE_T _topstolen; /* lines stolen from top */ 733 734 WINDOW *_curscr; /* current screen */ 735 WINDOW *_newscr; /* virtual screen to be updated to */ 736 WINDOW *_stdscr; /* screen's full-window context */ 737 738 TRIES *_keytry; /* "Try" for use with keypad mode */ 739 TRIES *_key_ok; /* Disabled keys via keyok(,FALSE) */ 740 bool _tried; /* keypad mode was initialized */ 741 bool _keypad_on; /* keypad mode is currently on */ 742 743 bool _called_wgetch; /* check for recursion in wgetch() */ 744 int _fifo[FIFO_SIZE]; /* input push-back buffer */ 745 short _fifohead, /* head of fifo queue */ 746 _fifotail, /* tail of fifo queue */ 747 _fifopeek, /* where to peek for next char */ 748 _fifohold; /* set if breakout marked */ 749 750 int _endwin; /* are we out of window mode? */ 751 NCURSES_CH_T *_current_attr; /* holds current attributes set */ 752 int _coloron; /* is color enabled? */ 753 int _color_defs; /* are colors modified */ 754 int _cursor; /* visibility of the cursor */ 755 int _cursrow; /* physical cursor row */ 756 int _curscol; /* physical cursor column */ 757 bool _notty; /* true if we cannot switch non-tty */ 758 int _nl; /* True if NL -> CR/NL is on */ 759 int _raw; /* True if in raw mode */ 760 int _cbreak; /* 1 if in cbreak mode */ 761 /* > 1 if in halfdelay mode */ 762 int _echo; /* True if echo on */ 763 int _use_meta; /* use the meta key? */ 764 struct _SLK *_slk; /* ptr to soft key struct / NULL */ 765 int slk_format; /* selected format for this screen */ 766 /* cursor movement costs; units are 10ths of milliseconds */ 767 #if NCURSES_NO_PADDING 768 bool _no_padding; /* flag to set if padding disabled */ 769 #endif 770 int _char_padding; /* cost of character put */ 771 int _cr_cost; /* cost of (carriage_return) */ 772 int _cup_cost; /* cost of (cursor_address) */ 773 int _home_cost; /* cost of (cursor_home) */ 774 int _ll_cost; /* cost of (cursor_to_ll) */ 775 #if USE_HARD_TABS 776 int _ht_cost; /* cost of (tab) */ 777 int _cbt_cost; /* cost of (backtab) */ 778 #endif /* USE_HARD_TABS */ 779 int _cub1_cost; /* cost of (cursor_left) */ 780 int _cuf1_cost; /* cost of (cursor_right) */ 781 int _cud1_cost; /* cost of (cursor_down) */ 782 int _cuu1_cost; /* cost of (cursor_up) */ 783 int _cub_cost; /* cost of (parm_cursor_left) */ 784 int _cuf_cost; /* cost of (parm_cursor_right) */ 785 int _cud_cost; /* cost of (parm_cursor_down) */ 786 int _cuu_cost; /* cost of (parm_cursor_up) */ 787 int _hpa_cost; /* cost of (column_address) */ 788 int _vpa_cost; /* cost of (row_address) */ 789 /* used in tty_update.c, must be chars */ 790 int _ed_cost; /* cost of (clr_eos) */ 791 int _el_cost; /* cost of (clr_eol) */ 792 int _el1_cost; /* cost of (clr_bol) */ 793 int _dch1_cost; /* cost of (delete_character) */ 794 int _ich1_cost; /* cost of (insert_character) */ 795 int _dch_cost; /* cost of (parm_dch) */ 796 int _ich_cost; /* cost of (parm_ich) */ 797 int _ech_cost; /* cost of (erase_chars) */ 798 int _rep_cost; /* cost of (repeat_char) */ 799 int _hpa_ch_cost; /* cost of (column_address) */ 800 int _cup_ch_cost; /* cost of (cursor_address) */ 801 int _cuf_ch_cost; /* cost of (parm_cursor_right) */ 802 int _inline_cost; /* cost of inline-move */ 803 int _smir_cost; /* cost of (enter_insert_mode) */ 804 int _rmir_cost; /* cost of (exit_insert_mode) */ 805 int _ip_cost; /* cost of (insert_padding) */ 806 /* used in lib_mvcur.c */ 807 char * _address_cursor; 808 /* used in tty_update.c */ 809 int _scrolling; /* 1 if terminal's smart enough to */ 810 811 /* used in lib_color.c */ 812 color_t *_color_table; /* screen's color palette */ 813 int _color_count; /* count of colors in palette */ 814 colorpair_t *_color_pairs; /* screen's color pair list */ 815 int _pair_count; /* count of color pairs */ 816 #if NCURSES_EXT_FUNCS 817 bool _default_color; /* use default colors */ 818 bool _has_sgr_39_49; /* has ECMA default color support */ 819 int _default_fg; /* assumed default foreground */ 820 int _default_bg; /* assumed default background */ 821 #endif 822 chtype _ok_attributes; /* valid attributes for terminal */ 823 chtype _xmc_suppress; /* attributes to suppress if xmc */ 824 chtype _xmc_triggers; /* attributes to process if xmc */ 825 chtype * _acs_map; /* the real alternate-charset map */ 826 bool * _screen_acs_map; 827 828 829 /* used in lib_vidattr.c */ 830 bool _use_rmso; /* true if we may use 'rmso' */ 831 bool _use_rmul; /* true if we may use 'rmul' */ 832 833 /* 834 * These data correspond to the state of the idcok() and idlok() 835 * functions. A caveat is in order here: the XSI and SVr4 836 * documentation specify that these functions apply to the window which 837 * is given as an argument. However, ncurses implements this logic 838 * only for the newscr/curscr update process, _not_ per-window. 839 */ 840 bool _nc_sp_idlok; 841 bool _nc_sp_idcok; 842 #define _nc_idlok SP->_nc_sp_idlok 843 #define _nc_idcok SP->_nc_sp_idcok 844 845 /* 846 * These are the data that support the mouse interface. 847 */ 848 bool _mouse_initialized; 849 MouseType _mouse_type; 850 int _maxclick; 851 bool (*_mouse_event) (SCREEN *); 852 bool (*_mouse_inline)(SCREEN *); 853 bool (*_mouse_parse) (SCREEN *, int); 854 void (*_mouse_resume)(SCREEN *); 855 void (*_mouse_wrap) (SCREEN *); 856 int _mouse_fd; /* file-descriptor, if any */ 857 bool _mouse_active; /* true if initialized */ 858 mmask_t _mouse_mask; 859 NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */ 860 MEVENT _mouse_events[EV_MAX]; /* hold the last mouse event seen */ 861 MEVENT *_mouse_eventp; /* next free slot in event queue */ 862 863 #if USE_GPM_SUPPORT 864 bool _mouse_gpm_loaded; 865 bool _mouse_gpm_found; 866 #ifdef HAVE_LIBDL 867 void *_dlopen_gpm; 868 TYPE_gpm_fd _mouse_gpm_fd; 869 TYPE_Gpm_Open _mouse_Gpm_Open; 870 TYPE_Gpm_Close _mouse_Gpm_Close; 871 TYPE_Gpm_GetEvent _mouse_Gpm_GetEvent; 872 #endif 873 Gpm_Connect _mouse_gpm_connect; 874 #endif /* USE_GPM_SUPPORT */ 875 876 #if USE_EMX_MOUSE 877 int _emxmouse_wfd; 878 int _emxmouse_thread; 879 int _emxmouse_activated; 880 char _emxmouse_buttons[4]; 881 #endif 882 883 #if USE_SYSMOUSE 884 MEVENT _sysmouse_fifo[FIFO_SIZE]; 885 int _sysmouse_head; 886 int _sysmouse_tail; 887 int _sysmouse_char_width; /* character width */ 888 int _sysmouse_char_height; /* character height */ 889 int _sysmouse_old_buttons; 890 int _sysmouse_new_buttons; 891 #endif 892 893 /* 894 * This supports automatic resizing 895 */ 896 #if USE_SIZECHANGE 897 int (*_resize)(int,int); 898 #endif 899 900 /* 901 * These are data that support the proper handling of the panel stack on an 902 * per screen basis. 903 */ 904 struct panelhook _panelHook; 905 906 bool _sig_winch; 907 SCREEN *_next_screen; 908 909 /* hashes for old and new lines */ 910 unsigned long *oldhash, *newhash; 911 HASHMAP *hashtab; 912 int hashtab_len; 913 int *_oldnum_list; 914 int _oldnum_size; 915 916 bool _cleanup; /* cleanup after int/quit signal */ 917 int (*_outch)(int); /* output handler if not putc */ 918 919 int _legacy_coding; /* see use_legacy_coding() */ 920 921 #if USE_REENTRANT 922 char _ttytype[NAMESIZE]; 923 int _ESCDELAY; 924 int _TABSIZE; 925 int _LINES; 926 int _COLS; 927 #ifdef TRACE 928 long _outchars; 929 const char *_tputs_trace; 930 #endif 931 #endif 932 933 #ifdef TRACE 934 #define _nc_screen_tracechr_buf_size 40 935 char tracechr_buf[_nc_screen_tracechr_buf_size]; 936 char tracemse_buf[TRACEMSE_MAX]; 937 #endif 938 /* 939 * ncurses/ncursesw are the same up to this point. 940 */ 941 #if USE_WIDEC_SUPPORT 942 /* recent versions of 'screen' have partially-working support for 943 * UTF-8, but do not permit ACS at the same time (see tty_update.c). 944 */ 945 bool _screen_acs_fix; 946 #endif 947 }; 948 949 extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain; 950 extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch; 951 952 WINDOWLIST { 953 WINDOW win; /* first, so WINDOW_EXT() works */ 954 WINDOWLIST *next; 955 SCREEN *screen; /* screen containing the window */ 956 #ifdef _XOPEN_SOURCE_EXTENDED 957 char addch_work[(MB_LEN_MAX * 9) + 1]; 958 unsigned addch_used; /* number of bytes in addch_work[] */ 959 int addch_x; /* x-position for addch_work[] */ 960 int addch_y; /* y-position for addch_work[] */ 961 #endif 962 }; 963 964 #define WINDOW_EXT(win,field) (((WINDOWLIST *)(win))->field) 965 966 /* usually in <limits.h> */ 967 #ifndef UCHAR_MAX 968 #define UCHAR_MAX 255 969 #endif 970 971 /* The terminfo source is assumed to be 7-bit ASCII */ 972 #define is7bits(c) ((unsigned)(c) < 128) 973 974 /* Checks for isprint() should be done on 8-bit characters (non-wide) */ 975 #define is8bits(c) ((unsigned)(c) <= UCHAR_MAX) 976 977 #ifndef min 978 #define min(a,b) ((a) > (b) ? (b) : (a)) 979 #endif 980 981 #ifndef max 982 #define max(a,b) ((a) < (b) ? (b) : (a)) 983 #endif 984 985 /* usually in <unistd.h> */ 986 #ifndef STDIN_FILENO 987 #define STDIN_FILENO 0 988 #endif 989 990 #ifndef STDOUT_FILENO 991 #define STDOUT_FILENO 1 992 #endif 993 994 #ifndef STDERR_FILENO 995 #define STDERR_FILENO 2 996 #endif 997 998 #ifndef EXIT_SUCCESS 999 #define EXIT_SUCCESS 0 1000 #endif 1001 1002 #ifndef EXIT_FAILURE 1003 #define EXIT_FAILURE 1 1004 #endif 1005 1006 #ifndef R_OK 1007 #define R_OK 4 /* Test for read permission. */ 1008 #endif 1009 #ifndef W_OK 1010 #define W_OK 2 /* Test for write permission. */ 1011 #endif 1012 #ifndef X_OK 1013 #define X_OK 1 /* Test for execute permission. */ 1014 #endif 1015 #ifndef F_OK 1016 #define F_OK 0 /* Test for existence. */ 1017 #endif 1018 1019 #if HAVE_FCNTL_H 1020 #include <fcntl.h> /* may define O_BINARY */ 1021 #endif 1022 1023 #ifndef O_BINARY 1024 #define O_BINARY 0 1025 #endif 1026 1027 #ifdef TRACE 1028 #if USE_REENTRANT 1029 #define COUNT_OUTCHARS(n) _nc_count_outchars(n); 1030 #else 1031 #define COUNT_OUTCHARS(n) _nc_outchars += (n); 1032 #endif 1033 #else 1034 #define COUNT_OUTCHARS(n) /* nothing */ 1035 #endif 1036 1037 #define RESET_OUTCHARS() COUNT_OUTCHARS(-_nc_outchars) 1038 1039 #define UChar(c) ((unsigned char)(c)) 1040 #define ChCharOf(c) ((c) & (chtype)A_CHARTEXT) 1041 #define ChAttrOf(c) ((c) & (chtype)A_ATTRIBUTES) 1042 1043 #ifndef MB_LEN_MAX 1044 #define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */ 1045 #endif 1046 1047 #if USE_WIDEC_SUPPORT /* { */ 1048 #define isEILSEQ(status) (((size_t)status == (size_t)-1) && (errno == EILSEQ)) 1049 1050 #define init_mb(state) memset(&state, 0, sizeof(state)) 1051 1052 #if NCURSES_EXT_COLORS 1053 #define NulColor , 0 1054 #else 1055 #define NulColor /* nothing */ 1056 #endif 1057 1058 #define NulChar 0,0,0,0 /* FIXME: see CCHARW_MAX */ 1059 #define CharOf(c) ((c).chars[0]) 1060 #define AttrOf(c) ((c).attr) 1061 1062 #define AddAttr(c,a) AttrOf(c) |= ((a) & A_ATTRIBUTES) 1063 #define RemAttr(c,a) AttrOf(c) &= ~((a) & A_ATTRIBUTES) 1064 #define SetAttr(c,a) AttrOf(c) = ((a) & A_ATTRIBUTES) | WidecExt(c) 1065 1066 #define NewChar2(c,a) { a, { c, NulChar } NulColor } 1067 #define NewChar(ch) NewChar2(ChCharOf(ch), ChAttrOf(ch)) 1068 1069 #if CCHARW_MAX == 5 1070 #define CharEq(a,b) (((a).attr == (b).attr) \ 1071 && (a).chars[0] == (b).chars[0] \ 1072 && (a).chars[1] == (b).chars[1] \ 1073 && (a).chars[2] == (b).chars[2] \ 1074 && (a).chars[3] == (b).chars[3] \ 1075 && (a).chars[4] == (b).chars[4] \ 1076 if_EXT_COLORS(&& (a).ext_color == (b).ext_color)) 1077 #else 1078 #define CharEq(a,b) (!memcmp(&(a), &(b), sizeof(a))) 1079 #endif 1080 1081 #define SetChar(ch,c,a) do { \ 1082 NCURSES_CH_T *_cp = &ch; \ 1083 memset(_cp, 0, sizeof(ch)); \ 1084 _cp->chars[0] = (c); \ 1085 _cp->attr = (a); \ 1086 if_EXT_COLORS(SetPair(ch, PAIR_NUMBER(a))); \ 1087 } while (0) 1088 #define CHREF(wch) (&wch) 1089 #define CHDEREF(wch) (*wch) 1090 #define ARG_CH_T NCURSES_CH_T * 1091 #define CARG_CH_T const NCURSES_CH_T * 1092 #define PUTC_DATA char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \ 1093 mbstate_t PUT_st; wchar_t PUTC_ch 1094 #define PUTC_INIT init_mb (PUT_st) 1095 #define PUTC(ch,b) do { if(!isWidecExt(ch)) { \ 1096 if (Charable(ch)) { \ 1097 fputc(CharOf(ch), b); \ 1098 COUNT_OUTCHARS(1); \ 1099 } else { \ 1100 PUTC_INIT; \ 1101 for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) { \ 1102 PUTC_ch = (ch).chars[PUTC_i]; \ 1103 if (PUTC_ch == L'\0') \ 1104 break; \ 1105 PUTC_n = wcrtomb(PUTC_buf, \ 1106 (ch).chars[PUTC_i], &PUT_st); \ 1107 if (PUTC_n <= 0) { \ 1108 if (PUTC_ch && is8bits(PUTC_ch) && PUTC_i == 0) \ 1109 putc(PUTC_ch,b); \ 1110 break; \ 1111 } \ 1112 fwrite(PUTC_buf, (unsigned) PUTC_n, 1, b); \ 1113 } \ 1114 COUNT_OUTCHARS(PUTC_i); \ 1115 } } } while (0) 1116 1117 #define BLANK NewChar2(' ', WA_NORMAL) 1118 #define ZEROS NewChar2('\0', WA_NORMAL) 1119 #define ISBLANK(ch) ((ch).chars[0] == L' ' && (ch).chars[1] == L'\0') 1120 1121 /* 1122 * Wide characters cannot be represented in the A_CHARTEXT mask of 1123 * attr_t's but an application might have set a narrow character there. 1124 * But even in that case, it would only be a printable character, or 1125 * zero. Otherwise we can use those bits to tell if a cell is the 1126 * first or extension part of a wide character. 1127 */ 1128 #define WidecExt(ch) (AttrOf(ch) & A_CHARTEXT) 1129 #define isWidecBase(ch) (WidecExt(ch) == 1) 1130 #define isWidecExt(ch) (WidecExt(ch) > 1 && WidecExt(ch) < 32) 1131 #define SetWidecExt(dst, ext) AttrOf(dst) &= ~A_CHARTEXT, \ 1132 AttrOf(dst) |= (ext + 1) 1133 1134 #define if_WIDEC(code) code 1135 #define Charable(ch) ((SP != 0 && SP->_legacy_coding) \ 1136 || (AttrOf(ch) & A_ALTCHARSET) \ 1137 || (!isWidecExt(ch) && \ 1138 (ch).chars[1] == L'\0' && \ 1139 _nc_is_charable(CharOf(ch)))) 1140 1141 #define L(ch) L ## ch 1142 #else /* }{ */ 1143 #define CharOf(c) ChCharOf(c) 1144 #define AttrOf(c) ChAttrOf(c) 1145 #define AddAttr(c,a) c |= (a) 1146 #define RemAttr(c,a) c &= ~((a) & A_ATTRIBUTES) 1147 #define SetAttr(c,a) c = ((c) & ~A_ATTRIBUTES) | (a) 1148 #define NewChar(ch) (ch) 1149 #define NewChar2(c,a) ((c) | (a)) 1150 #define CharEq(a,b) ((a) == (b)) 1151 #define SetChar(ch,c,a) ch = (c) | (a) 1152 #define CHREF(wch) wch 1153 #define CHDEREF(wch) wch 1154 #define ARG_CH_T NCURSES_CH_T 1155 #define CARG_CH_T NCURSES_CH_T 1156 #define PUTC_DATA int data = 0 1157 #define PUTC(ch,b) do { data = CharOf(ch); putc(data,b); } while (0) 1158 1159 #define BLANK (' '|A_NORMAL) 1160 #define ZEROS ('\0'|A_NORMAL) 1161 #define ISBLANK(ch) (CharOf(ch) == ' ') 1162 1163 #define isWidecExt(ch) (0) 1164 #define if_WIDEC(code) /* nothing */ 1165 1166 #define L(ch) ch 1167 #endif /* } */ 1168 1169 #define AttrOfD(ch) AttrOf(CHDEREF(ch)) 1170 #define CharOfD(ch) CharOf(CHDEREF(ch)) 1171 #define SetChar2(wch,ch) SetChar(wch,ChCharOf(ch),ChAttrOf(ch)) 1172 1173 #define BLANK_ATTR A_NORMAL 1174 #define BLANK_TEXT L(' ') 1175 1176 #define CHANGED -1 1177 1178 #define LEGALYX(w, y, x) \ 1179 ((w) != 0 && \ 1180 ((x) >= 0 && (x) <= (w)->_maxx && \ 1181 (y) >= 0 && (y) <= (w)->_maxy)) 1182 1183 #define CHANGED_CELL(line,col) \ 1184 if (line->firstchar == _NOCHANGE) \ 1185 line->firstchar = line->lastchar = col; \ 1186 else if ((col) < line->firstchar) \ 1187 line->firstchar = col; \ 1188 else if ((col) > line->lastchar) \ 1189 line->lastchar = col 1190 1191 #define CHANGED_RANGE(line,start,end) \ 1192 if (line->firstchar == _NOCHANGE \ 1193 || line->firstchar > (start)) \ 1194 line->firstchar = start; \ 1195 if (line->lastchar == _NOCHANGE \ 1196 || line->lastchar < (end)) \ 1197 line->lastchar = end 1198 1199 #define CHANGED_TO_EOL(line,start,end) \ 1200 if (line->firstchar == _NOCHANGE \ 1201 || line->firstchar > (start)) \ 1202 line->firstchar = start; \ 1203 line->lastchar = end 1204 1205 #define SIZEOF(v) (sizeof(v)/sizeof(v[0])) 1206 1207 #define FreeIfNeeded(p) if ((p) != 0) free(p) 1208 1209 /* FreeAndNull() is not a comma-separated expression because some compilers 1210 * do not accept a mixture of void with values. 1211 */ 1212 #define FreeAndNull(p) free(p); p = 0 1213 1214 #include <nc_alloc.h> 1215 1216 /* 1217 * TTY bit definition for converting tabs to spaces. 1218 */ 1219 #ifdef TAB3 1220 # define OFLAGS_TABS TAB3 /* POSIX specifies TAB3 */ 1221 #else 1222 # ifdef XTABS 1223 # define OFLAGS_TABS XTABS /* XTABS is usually the "same" */ 1224 # else 1225 # ifdef OXTABS 1226 # define OFLAGS_TABS OXTABS /* the traditional BSD equivalent */ 1227 # else 1228 # define OFLAGS_TABS 0 1229 # endif 1230 # endif 1231 #endif 1232 1233 /* 1234 * Standardize/simplify common loops 1235 */ 1236 #define each_screen(p) p = _nc_screen_chain; p != 0; p = (p)->_next_screen 1237 #define each_window(p) p = _nc_windows; p != 0; p = (p)->next 1238 #define each_ripoff(p) p = ripoff_stack; (p - ripoff_stack) < N_RIPS; ++p 1239 1240 /* 1241 * Prefixes for call/return points of library function traces. We use these to 1242 * instrument the public functions so that the traces can be easily transformed 1243 * into regression scripts. 1244 */ 1245 #define T_CALLED(fmt) "called {" fmt 1246 #define T_CREATE(fmt) "create :" fmt 1247 #define T_RETURN(fmt) "return }" fmt 1248 1249 #ifdef TRACE 1250 1251 #if USE_REENTRANT 1252 #define TPUTS_TRACE(s) _nc_set_tputs_trace(s); 1253 #else 1254 #define TPUTS_TRACE(s) _nc_tputs_trace = s; 1255 #endif 1256 1257 #define START_TRACE() \ 1258 if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \ 1259 int t = _nc_getenv_num("NCURSES_TRACE"); \ 1260 if (t >= 0) \ 1261 trace((unsigned) t); \ 1262 } 1263 1264 /* 1265 * Many of the _tracef() calls use static buffers; lock the trace state before 1266 * trying to fill them. 1267 */ 1268 #if USE_REENTRANT 1269 #define USE_TRACEF(mask) _nc_use_tracef(mask) 1270 extern NCURSES_EXPORT(int) _nc_use_tracef (unsigned); 1271 extern NCURSES_EXPORT(void) _nc_locked_tracef (const char *, ...) GCC_PRINTFLIKE(1,2); 1272 #else 1273 #define USE_TRACEF(mask) (_nc_tracing & (mask)) 1274 #define _nc_locked_tracef _tracef 1275 #endif 1276 1277 #define TR(n, a) if (USE_TRACEF(n)) _nc_locked_tracef a 1278 #define T(a) TR(TRACE_CALLS, a) 1279 #define TRACE_RETURN(value,type) return _nc_retrace_##type(value) 1280 1281 #define returnAttr(code) TRACE_RETURN(code,attr_t) 1282 #define returnBits(code) TRACE_RETURN(code,unsigned) 1283 #define returnBool(code) TRACE_RETURN(code,bool) 1284 #define returnCPtr(code) TRACE_RETURN(code,cptr) 1285 #define returnCVoidPtr(code) TRACE_RETURN(code,cvoid_ptr) 1286 #define returnChar(code) TRACE_RETURN(code,chtype) 1287 #define returnCode(code) TRACE_RETURN(code,int) 1288 #define returnPtr(code) TRACE_RETURN(code,ptr) 1289 #define returnSP(code) TRACE_RETURN(code,sp) 1290 #define returnVoid T((T_RETURN(""))); return 1291 #define returnVoidPtr(code) TRACE_RETURN(code,void_ptr) 1292 #define returnWin(code) TRACE_RETURN(code,win) 1293 1294 extern NCURSES_EXPORT(NCURSES_BOOL) _nc_retrace_bool (NCURSES_BOOL); 1295 extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *); 1296 extern NCURSES_EXPORT(SCREEN *) _nc_retrace_sp (SCREEN *); 1297 extern NCURSES_EXPORT(WINDOW *) _nc_retrace_win (WINDOW *); 1298 extern NCURSES_EXPORT(attr_t) _nc_retrace_attr_t (attr_t); 1299 extern NCURSES_EXPORT(char *) _nc_retrace_ptr (char *); 1300 extern NCURSES_EXPORT(char *) _nc_trace_ttymode(TTY *tty); 1301 extern NCURSES_EXPORT(char *) _nc_varargs (const char *, va_list); 1302 extern NCURSES_EXPORT(chtype) _nc_retrace_chtype (chtype); 1303 extern NCURSES_EXPORT(const char *) _nc_altcharset_name(attr_t, chtype); 1304 extern NCURSES_EXPORT(const char *) _nc_retrace_cptr (const char *); 1305 extern NCURSES_EXPORT(int) _nc_retrace_int (int); 1306 extern NCURSES_EXPORT(unsigned) _nc_retrace_unsigned (unsigned); 1307 extern NCURSES_EXPORT(void *) _nc_retrace_void_ptr (void *); 1308 extern NCURSES_EXPORT(void) _nc_fifo_dump (SCREEN *); 1309 1310 #if USE_REENTRANT 1311 NCURSES_WRAPPED_VAR(long, _nc_outchars); 1312 NCURSES_WRAPPED_VAR(const char *, _nc_tputs_trace); 1313 #define _nc_outchars NCURSES_PUBLIC_VAR(_nc_outchars()) 1314 #define _nc_tputs_trace NCURSES_PUBLIC_VAR(_nc_tputs_trace()) 1315 extern NCURSES_EXPORT(void) _nc_set_tputs_trace (const char *); 1316 extern NCURSES_EXPORT(void) _nc_count_outchars (long); 1317 #else 1318 extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace; 1319 extern NCURSES_EXPORT_VAR(long) _nc_outchars; 1320 #endif 1321 1322 extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing; 1323 1324 #if USE_WIDEC_SUPPORT 1325 extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *); 1326 extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int); 1327 #endif 1328 1329 extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int); 1330 extern NCURSES_EXPORT(const char *) _nc_viscbuf (const NCURSES_CH_T *, int); 1331 1332 #else /* !TRACE */ 1333 1334 #define START_TRACE() /* nothing */ 1335 1336 #define T(a) 1337 #define TR(n, a) 1338 #define TPUTS_TRACE(s) 1339 1340 #define returnAttr(code) return code 1341 #define returnBits(code) return code 1342 #define returnBool(code) return code 1343 #define returnCPtr(code) return code 1344 #define returnCVoidPtr(code) return code 1345 #define returnChar(code) return code 1346 #define returnCode(code) return code 1347 #define returnPtr(code) return code 1348 #define returnSP(code) return code 1349 #define returnVoid return 1350 #define returnVoidPtr(code) return code 1351 #define returnWin(code) return code 1352 1353 #endif /* TRACE/!TRACE */ 1354 1355 /* 1356 * Return-codes for tgetent() and friends. 1357 */ 1358 #define TGETENT_YES 1 /* entry is found */ 1359 #define TGETENT_NO 0 /* entry is not found */ 1360 #define TGETENT_ERR -1 /* an error occurred */ 1361 1362 extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *); 1363 extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int); 1364 1365 #define EMPTY_MODULE(name) \ 1366 extern NCURSES_EXPORT(void) name (void); \ 1367 NCURSES_EXPORT(void) name (void) { } 1368 1369 #define ALL_BUT_COLOR ((chtype)~(A_COLOR)) 1370 #define NONBLANK_ATTR (A_NORMAL|A_BOLD|A_DIM|A_BLINK) 1371 #define XMC_CHANGES(c) ((c) & SP->_xmc_suppress) 1372 1373 #define toggle_attr_on(S,at) {\ 1374 if (PAIR_NUMBER(at) > 0) {\ 1375 (S) = ((S) & ALL_BUT_COLOR) | (at);\ 1376 } else {\ 1377 (S) |= (at);\ 1378 }\ 1379 TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));} 1380 1381 1382 #define toggle_attr_off(S,at) {\ 1383 if (PAIR_NUMBER(at) > 0) {\ 1384 (S) &= ~(at|A_COLOR);\ 1385 } else {\ 1386 (S) &= ~(at);\ 1387 }\ 1388 TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));} 1389 1390 #define DelCharCost(count) \ 1391 ((parm_dch != 0) \ 1392 ? SP->_dch_cost \ 1393 : ((delete_character != 0) \ 1394 ? (SP->_dch1_cost * count) \ 1395 : INFINITY)) 1396 1397 #define InsCharCost(count) \ 1398 ((parm_ich != 0) \ 1399 ? SP->_ich_cost \ 1400 : ((enter_insert_mode && exit_insert_mode) \ 1401 ? SP->_smir_cost + SP->_rmir_cost + (SP->_ip_cost * count) \ 1402 : ((insert_character != 0) \ 1403 ? ((SP->_ich1_cost + SP->_ip_cost) * count) \ 1404 : INFINITY))) 1405 1406 #if USE_XMC_SUPPORT 1407 #define UpdateAttrs(c) if (!SameAttrOf(SCREEN_ATTRS(SP), c)) { \ 1408 attr_t chg = AttrOf(SCREEN_ATTRS(SP)); \ 1409 VIDATTR(AttrOf(c), GetPair(c)); \ 1410 if (magic_cookie_glitch > 0 \ 1411 && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(SP))))) { \ 1412 T(("%s @%d before glitch %d,%d", \ 1413 __FILE__, __LINE__, \ 1414 SP->_cursrow, \ 1415 SP->_curscol)); \ 1416 _nc_do_xmc_glitch(chg); \ 1417 } \ 1418 } 1419 #else 1420 #define UpdateAttrs(c) if (!SameAttrOf(SCREEN_ATTRS(SP), c)) \ 1421 VIDATTR(AttrOf(c), GetPair(c)); 1422 #endif 1423 1424 /* 1425 * Macros to make additional parameter to implement wgetch_events() 1426 */ 1427 #ifdef NCURSES_WGETCH_EVENTS 1428 #define EVENTLIST_0th(param) param 1429 #define EVENTLIST_1st(param) param 1430 #define EVENTLIST_2nd(param) , param 1431 #else 1432 #define EVENTLIST_0th(param) void 1433 #define EVENTLIST_1st(param) /* nothing */ 1434 #define EVENTLIST_2nd(param) /* nothing */ 1435 #endif 1436 1437 #if NCURSES_EXPANDED && NCURSES_EXT_FUNCS 1438 1439 #undef toggle_attr_on 1440 #define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at) 1441 extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t); 1442 1443 #undef toggle_attr_off 1444 #define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at) 1445 extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t); 1446 1447 #undef DelCharCost 1448 #define DelCharCost(count) _nc_DelCharCost(count) 1449 extern NCURSES_EXPORT(int) _nc_DelCharCost (int); 1450 1451 #undef InsCharCost 1452 #define InsCharCost(count) _nc_InsCharCost(count) 1453 extern NCURSES_EXPORT(int) _nc_InsCharCost (int); 1454 1455 #undef UpdateAttrs 1456 #define UpdateAttrs(c) _nc_UpdateAttrs(c) 1457 extern NCURSES_EXPORT(void) _nc_UpdateAttrs (NCURSES_CH_T); 1458 1459 #else 1460 1461 extern NCURSES_EXPORT(void) _nc_expanded (void); 1462 1463 #endif 1464 1465 #if !NCURSES_EXT_FUNCS 1466 #define set_escdelay(value) ESCDELAY = value 1467 #endif 1468 1469 #if !HAVE_GETCWD 1470 #define getcwd(buf,len) getwd(buf) 1471 #endif 1472 1473 /* charable.c */ 1474 #if USE_WIDEC_SUPPORT 1475 extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t); 1476 extern NCURSES_EXPORT(int) _nc_to_char(wint_t); 1477 extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int); 1478 #endif 1479 1480 /* comp_captab.c */ 1481 typedef struct { 1482 short nte_name; /* offset of name to hash on */ 1483 int nte_type; /* BOOLEAN, NUMBER or STRING */ 1484 short nte_index; /* index of associated variable in its array */ 1485 short nte_link; /* index in table of next hash, or -1 */ 1486 } name_table_data; 1487 1488 typedef struct 1489 { 1490 short from; 1491 short to; 1492 short source; 1493 } alias_table_data; 1494 1495 /* doupdate.c */ 1496 #if USE_XMC_SUPPORT 1497 extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t); 1498 #endif 1499 1500 /* hardscroll.c */ 1501 #if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG) 1502 extern NCURSES_EXPORT(void) _nc_linedump (void); 1503 #endif 1504 1505 /* lib_acs.c */ 1506 extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */ 1507 extern NCURSES_EXPORT(int) _nc_msec_cost (const char *const, int); /* used by 'tack' program */ 1508 1509 /* lib_addch.c */ 1510 #if USE_WIDEC_SUPPORT 1511 NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch); 1512 #endif 1513 1514 /* lib_addstr.c */ 1515 #if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB) 1516 extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *); 1517 #endif 1518 1519 /* lib_color.c */ 1520 extern NCURSES_EXPORT(bool) _nc_reset_colors(void); 1521 1522 /* lib_getch.c */ 1523 extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, unsigned long *, int EVENTLIST_2nd(_nc_eventlist *)); 1524 1525 /* lib_insch.c */ 1526 extern NCURSES_EXPORT(int) _nc_insert_ch(WINDOW *, chtype); 1527 1528 /* lib_mvcur.c */ 1529 #define INFINITY 1000000 /* cost: too high to use */ 1530 1531 extern NCURSES_EXPORT(void) _nc_mvcur_init (void); 1532 extern NCURSES_EXPORT(void) _nc_mvcur_resume (void); 1533 extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void); 1534 1535 extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int); 1536 1537 extern NCURSES_EXPORT(void) _nc_screen_init (void); 1538 extern NCURSES_EXPORT(void) _nc_screen_resume (void); 1539 extern NCURSES_EXPORT(void) _nc_screen_wrap (void); 1540 1541 /* lib_mouse.c */ 1542 extern NCURSES_EXPORT(int) _nc_has_mouse (void); 1543 1544 /* lib_mvcur.c */ 1545 #define INFINITY 1000000 /* cost: too high to use */ 1546 #define BAUDBYTE 9 /* 9 = 7 bits + 1 parity + 1 stop */ 1547 1548 /* lib_setup.c */ 1549 extern NCURSES_EXPORT(char *) _nc_get_locale(void); 1550 extern NCURSES_EXPORT(int) _nc_unicode_locale(void); 1551 extern NCURSES_EXPORT(int) _nc_locale_breaks_acs(TERMINAL *); 1552 extern NCURSES_EXPORT(int) _nc_setupterm(NCURSES_CONST char *, int, int *, bool); 1553 extern NCURSES_EXPORT(void) _nc_get_screensize(SCREEN *, int *, int *); 1554 1555 /* lib_tstp.c */ 1556 #if USE_SIGWINCH 1557 extern NCURSES_EXPORT(int) _nc_handle_sigwinch(SCREEN *); 1558 #else 1559 #define _nc_handle_sigwinch(a) /* nothing */ 1560 #endif 1561 1562 /* lib_ungetch.c */ 1563 extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int); 1564 1565 /* lib_wacs.c */ 1566 #if USE_WIDEC_SUPPORT 1567 extern NCURSES_EXPORT(void) _nc_init_wacs(void); 1568 #endif 1569 1570 typedef struct { 1571 char *s_head; /* beginning of the string (may be null) */ 1572 char *s_tail; /* end of the string (may be null) */ 1573 size_t s_size; /* current remaining size available */ 1574 size_t s_init; /* total size available */ 1575 } string_desc; 1576 1577 /* strings.c */ 1578 extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t); 1579 extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t); 1580 extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, string_desc *); 1581 extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *); 1582 extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *); 1583 1584 #if !HAVE_STRSTR 1585 #define strstr _nc_strstr 1586 extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *); 1587 #endif 1588 1589 /* safe_sprintf.c */ 1590 extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list); 1591 1592 /* tries.c */ 1593 extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned); 1594 extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t); 1595 extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned); 1596 extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *); 1597 1598 /* elsewhere ... */ 1599 extern NCURSES_EXPORT(ENTRY *) _nc_delink_entry (ENTRY *, TERMTYPE *); 1600 extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int); 1601 extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype); 1602 extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *); 1603 extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int); 1604 extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t); 1605 extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *); 1606 extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int); 1607 extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *); 1608 extern NCURSES_EXPORT(int) _nc_access (const char *, int); 1609 extern NCURSES_EXPORT(int) _nc_baudrate (int); 1610 extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *); 1611 extern NCURSES_EXPORT(int) _nc_getenv_num (const char *); 1612 extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, bool); 1613 extern NCURSES_EXPORT(int) _nc_ospeed (int); 1614 extern NCURSES_EXPORT(int) _nc_outch (int); 1615 extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE *const); 1616 extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, bool, int); 1617 extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *)); 1618 extern NCURSES_EXPORT(void) _nc_do_color (short, short, bool, int (*)(int)); 1619 extern NCURSES_EXPORT(void) _nc_flush (void); 1620 extern NCURSES_EXPORT(void) _nc_free_and_exit (int); 1621 extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE *); 1622 extern NCURSES_EXPORT(void) _nc_freeall (void); 1623 extern NCURSES_EXPORT(void) _nc_hash_map (void); 1624 extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *); 1625 extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *); 1626 extern NCURSES_EXPORT(void) _nc_make_oldhash (int i); 1627 extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot); 1628 extern NCURSES_EXPORT(void) _nc_scroll_optimize (void); 1629 extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, bool); 1630 extern NCURSES_EXPORT(void) _nc_signal_handler (bool); 1631 extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *); 1632 extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *); 1633 1634 #if NO_LEAKS 1635 extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void); 1636 extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void); 1637 extern NCURSES_EXPORT(void) _nc_codes_leaks(void); 1638 extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void); 1639 extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void); 1640 extern NCURSES_EXPORT(void) _nc_keyname_leaks(void); 1641 extern NCURSES_EXPORT(void) _nc_names_leaks(void); 1642 extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void); 1643 #endif 1644 1645 #ifndef USE_TERMLIB 1646 extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T); 1647 extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T); 1648 extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, NCURSES_SIZE_T const, NCURSES_SIZE_T const, NCURSES_CH_T); 1649 #endif 1650 1651 #if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB) 1652 extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *); 1653 #endif 1654 1655 #if USE_SIZECHANGE 1656 extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *); 1657 #endif 1658 1659 #if HAVE_RESIZETERM 1660 extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *); 1661 #else 1662 #define _nc_resize_margins(wp) /* nothing */ 1663 #endif 1664 1665 #ifdef NCURSES_WGETCH_EVENTS 1666 extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *); 1667 #else 1668 #define wgetch_events(win, evl) wgetch(win) 1669 #define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen) 1670 #endif 1671 1672 /* 1673 * Not everyone has vsscanf(), but we'd like to use it for scanw(). 1674 */ 1675 #if !HAVE_VSSCANF 1676 extern int vsscanf(const char *str, const char *format, va_list __arg); 1677 #endif 1678 1679 /* scroll indices */ 1680 extern NCURSES_EXPORT_VAR(int *) _nc_oldnums; 1681 1682 #define USE_SETBUF_0 0 1683 1684 #define NC_BUFFERED(flag) _nc_set_buffer(SP->_ofp, flag) 1685 1686 #define NC_OUTPUT ((SP != 0) ? SP->_ofp : stdout) 1687 1688 /* 1689 * On systems with a broken linker, define 'SP' as a function to force the 1690 * linker to pull in the data-only module with 'SP'. 1691 */ 1692 #if BROKEN_LINKER 1693 #define SP _nc_screen() 1694 extern NCURSES_EXPORT(SCREEN *) _nc_screen (void); 1695 extern NCURSES_EXPORT(int) _nc_alloc_screen (void); 1696 extern NCURSES_EXPORT(void) _nc_set_screen (SCREEN *); 1697 #else 1698 /* current screen is private data; avoid possible linking conflicts too */ 1699 extern NCURSES_EXPORT_VAR(SCREEN *) SP; 1700 #define _nc_alloc_screen() ((SP = typeCalloc(SCREEN, 1)) != 0) 1701 #define _nc_set_screen(sp) SP = sp 1702 #endif 1703 1704 /* 1705 * We don't want to use the lines or columns capabilities internally, because 1706 * if the application is running multiple screens under X, it's quite possible 1707 * they could all have type xterm but have different sizes! So... 1708 */ 1709 #define screen_lines SP->_lines 1710 #define screen_columns SP->_columns 1711 1712 extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int); 1713 1714 /* 1715 * Some constants related to SLK's 1716 */ 1717 #define MAX_SKEY_OLD 8 /* count of soft keys */ 1718 #define MAX_SKEY_LEN_OLD 8 /* max length of soft key text */ 1719 #define MAX_SKEY_PC 12 /* This is what most PC's have */ 1720 #define MAX_SKEY_LEN_PC 5 1721 1722 /* Macro to check whether or not we use a standard format */ 1723 #define SLK_STDFMT(fmt) (fmt < 3) 1724 /* Macro to determine height of label window */ 1725 #define SLK_LINES(fmt) (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2)) 1726 1727 #define MAX_SKEY(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC) 1728 #define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC) 1729 1730 extern NCURSES_EXPORT(int) _nc_ripoffline (int line, int (*init)(WINDOW *,int)); 1731 1732 /* 1733 * Common error messages 1734 */ 1735 #define MSG_NO_MEMORY "Out of memory" 1736 #define MSG_NO_INPUTS "Premature EOF" 1737 1738 #ifdef __cplusplus 1739 } 1740 #endif 1741 1742 #endif /* CURSES_PRIV_H */ 1743