contrib/ncurses/ncurses/curses.priv.h

   1 /****************************************************************************
   2  * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc.              *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
   7  * without limitation the rights to use, copy, modify, merge, publish,      *
   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22  *                                                                          *
  23  * Except as contained in this notice, the name(s) of the above copyright   *
  24  * holders shall not be used in advertising or otherwise to promote the     *
  25  * sale, use or other dealings in this Software without prior written       *
  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  32  *     and: Thomas E. Dickey                        1996-on                 *
  33  ****************************************************************************/
  34
  35
  36 /*
  37  * $Id: curses.priv.h,v 1.394 2008/10/04 21:37:45 tom Exp $
  38  *
  39  *      curses.priv.h
  40  *
  41  *      Header file for curses library objects which are private to
  42  *      the library.
  43  *
  44  */
  45
  46 #ifndef CURSES_PRIV_H
  47 #define CURSES_PRIV_H 1
  48
  49 #include <ncurses_dll.h>
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif
  54
  55 #include <ncurses_cfg.h>
  56
  57 #if USE_RCS_IDS
  58 #define MODULE_ID(id) static const char Ident[] = id;
  59 #else
  60 #define MODULE_ID(id) /*nothing*/
  61 #endif
  62
  63 #include <stdlib.h>
  64 #include <string.h>
  65 #include <sys/types.h>
  66
  67 #if HAVE_UNISTD_H
  68 #include <unistd.h>
  69 #endif
  70
  71 #if HAVE_SYS_BSDTYPES_H
  72 #include <sys/bsdtypes.h>       /* needed for ISC */
  73 #endif
  74
  75 #if HAVE_LIMITS_H
  76 # include <limits.h>
  77 #elif HAVE_SYS_PARAM_H
  78 # include <sys/param.h>
  79 #endif
  80
  81 #include <assert.h>
  82 #include <stdio.h>
  83
  84 #include <errno.h>
  85
  86 #ifndef PATH_MAX
  87 # if defined(_POSIX_PATH_MAX)
  88 #  define PATH_MAX _POSIX_PATH_MAX
  89 # elif defined(MAXPATHLEN)
  90 #  define PATH_MAX MAXPATHLEN
  91 # else
  92 #  define PATH_MAX 255  /* the Posix minimum path-size */
  93 # endif
  94 #endif
  95
  96 #if DECL_ERRNO
  97 extern int errno;
  98 #endif
  99
 100 #include <nc_panel.h>
 101
 102 /* Some systems have a broken 'select()', but workable 'poll()'.  Use that */
 103 #if HAVE_WORKING_POLL
 104 #define USE_FUNC_POLL 1
 105 #if HAVE_POLL_H
 106 #include <poll.h>
 107 #else
 108 #include <sys/poll.h>
 109 #endif
 110 #else
 111 #define USE_FUNC_POLL 0
 112 #endif
 113
 114 /* include signal.h before curses.h to work-around defect in glibc 2.1.3 */
 115 #include <signal.h>
 116
 117 /* Alessandro Rubini's GPM (general-purpose mouse) */
 118 #if HAVE_LIBGPM && HAVE_GPM_H
 119 #define USE_GPM_SUPPORT 1
 120 #else
 121 #define USE_GPM_SUPPORT 0
 122 #endif
 123
 124 /* QNX mouse support */
 125 #if defined(__QNX__) && !defined(__QNXNTO__)
 126 #define USE_QNX_MOUSE 1
 127 #else
 128 #define USE_QNX_MOUSE 0
 129 #endif
 130
 131 /* EMX mouse support */
 132 #ifdef __EMX__
 133 #define USE_EMX_MOUSE 1
 134 #else
 135 #define USE_EMX_MOUSE 0
 136 #endif
 137
 138 #define DEFAULT_MAXCLICK 166
 139 #define EV_MAX          8       /* size of mouse circular event queue */
 140
 141 /*
 142  * If we don't have signals to support it, don't add a sigwinch handler.
 143  * In any case, resizing is an extended feature.  Use it if we've got it.
 144  */
 145 #if !NCURSES_EXT_FUNCS
 146 #undef HAVE_SIZECHANGE
 147 #define HAVE_SIZECHANGE 0
 148 #endif
 149
 150 #if HAVE_SIZECHANGE && USE_SIGWINCH && defined(SIGWINCH)
 151 #define USE_SIZECHANGE 1
 152 #else
 153 #define USE_SIZECHANGE 0
 154 #undef USE_SIGWINCH
 155 #define USE_SIGWINCH 0
 156 #endif
 157
 158 /*
 159  * If desired, one can configure this, disabling environment variables that
 160  * point to custom terminfo/termcap locations.
 161  */
 162 #ifdef USE_ROOT_ENVIRON
 163 #define use_terminfo_vars() 1
 164 #else
 165 #define use_terminfo_vars() _nc_env_access()
 166 extern NCURSES_EXPORT(int) _nc_env_access (void);
 167 #endif
 168
 169 /*
 170  * Not all platforms have memmove; some have an equivalent bcopy.  (Some may
 171  * have neither).
 172  */
 173 #if USE_OK_BCOPY
 174 #define memmove(d,s,n) bcopy(s,d,n)
 175 #elif USE_MY_MEMMOVE
 176 #define memmove(d,s,n) _nc_memmove(d,s,n)
 177 extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
 178 #endif
 179
 180 /*
 181  * Scroll hints are useless when hashmap is used
 182  */
 183 #if !USE_SCROLL_HINTS
 184 #if !USE_HASHMAP
 185 #define USE_SCROLL_HINTS 1
 186 #else
 187 #define USE_SCROLL_HINTS 0
 188 #endif
 189 #endif
 190
 191 #if USE_SCROLL_HINTS
 192 #define if_USE_SCROLL_HINTS(stmt) stmt
 193 #else
 194 #define if_USE_SCROLL_HINTS(stmt) /*nothing*/
 195 #endif
 196
 197 /*
 198  * Note:  ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
 199  * when we're throwing control codes at the screen at high volume.  To see
 200  * this, re-enable USE_HARD_TABS and run worm for a while.  Other systems
 201  * probably don't want to define this either due to uncertainties about tab
 202  * delays and expansion in raw mode.
 203  */
 204
 205 #define TRIES struct tries
 206 typedef TRIES {
 207         TRIES    *child;            /* ptr to child.  NULL if none          */
 208         TRIES    *sibling;          /* ptr to sibling.  NULL if none        */
 209         unsigned char    ch;        /* character at this node               */
 210         unsigned short   value;     /* code of string so far.  0 if none.   */
 211 #undef TRIES
 212 } TRIES;
 213
 214 /*
 215  * Common/troublesome character definitions
 216  */
 217 #define StringOf(ch) {ch, 0}
 218
 219 #define L_BRACE '{'
 220 #define R_BRACE '}'
 221 #define S_QUOTE '\''
 222 #define D_QUOTE '"'
 223
 224 #define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~"
 225
 226 /*
 227  * Structure for palette tables
 228  */
 229
 230 typedef struct
 231 {
 232     short red, green, blue;     /* what color_content() returns */
 233     short r, g, b;              /* params to init_color() */
 234     int init;                   /* true if we called init_color() */
 235 }
 236 color_t;
 237
 238 #define MAXCOLUMNS    135
 239 #define MAXLINES      66
 240 #define FIFO_SIZE     MAXCOLUMNS+2  /* for nocbreak mode input */
 241
 242 #define ACS_LEN       128
 243
 244 #define WINDOWLIST struct _win_list
 245
 246 #if USE_WIDEC_SUPPORT
 247 #define _nc_bkgd    _bkgrnd
 248 #else
 249 #undef _XOPEN_SOURCE_EXTENDED
 250 #define _nc_bkgd    _bkgd
 251 #define wgetbkgrnd(win, wch)    *wch = win->_bkgd
 252 #define wbkgrnd     wbkgd
 253 #endif
 254
 255 #undef NCURSES_OPAQUE
 256 #define NCURSES_INTERNALS 1
 257 #define NCURSES_OPAQUE 0
 258
 259 #include <curses.h>     /* we'll use -Ipath directive to get the right one! */
 260 #include <term.h>
 261 #include <term_entry.h>
 262 #include <nc_tparm.h>
 263
 264 #if NCURSES_EXT_COLORS && USE_WIDEC_SUPPORT
 265 #define if_EXT_COLORS(stmt)     stmt
 266 #define NetPair(value,p)        (value).ext_color = (p), \
 267                                 AttrOf(value) &= ALL_BUT_COLOR, \
 268                                 AttrOf(value) |= (A_COLOR & COLOR_PAIR((p > 255) ? 255 : p))
 269 #define SetPair(value,p)        (value).ext_color = (p)
 270 #define GetPair(value)          (value).ext_color
 271 #define unColor(n)              (AttrOf(n) & ALL_BUT_COLOR)
 272 #define GET_WINDOW_PAIR(w)      (w)->_color
 273 #define SET_WINDOW_PAIR(w,p)    (w)->_color = (p)
 274 #define SameAttrOf(a,b)         (AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b))
 275 #define VIDATTR(attr, pair)     vid_attr(attr, pair, 0)
 276 #else
 277 #define if_EXT_COLORS(stmt)     /* nothing */
 278 #define SetPair(value,p)        RemAttr(value, A_COLOR), \
 279                                 SetAttr(value, AttrOf(value) | (A_COLOR & COLOR_PAIR(p)))
 280 #define GetPair(value)          PAIR_NUMBER(AttrOf(value))
 281 #define unColor(n)              (AttrOf(n) & ALL_BUT_COLOR)
 282 #define GET_WINDOW_PAIR(w)      PAIR_NUMBER(WINDOW_ATTRS(w))
 283 #define SET_WINDOW_PAIR(w,p)    WINDOW_ATTRS(w) &= ALL_BUT_COLOR, \
 284                                 WINDOW_ATTRS(w) |= (A_COLOR & COLOR_PAIR(p))
 285 #define SameAttrOf(a,b)         (AttrOf(a) == AttrOf(b))
 286 #define VIDATTR(attr, pair)     vidattr(attr)
 287 #endif
 288
 289 #if NCURSES_NO_PADDING
 290 #define GetNoPadding(sp)        ((sp) ? (sp)->_no_padding : _nc_prescreen._no_padding)
 291 #define SetNoPadding(sp)        _nc_set_no_padding(sp)
 292 extern NCURSES_EXPORT(void) _nc_set_no_padding(SCREEN *);
 293 #else
 294 #define GetNoPadding(sp)        FALSE
 295 #define SetNoPadding(sp)        /*nothing*/
 296 #endif
 297
 298 #define WINDOW_ATTRS(w)         ((w)->_attrs)
 299
 300 #define SCREEN_ATTRS(s)         (*((s)->_current_attr))
 301 #define GET_SCREEN_PAIR(s)      GetPair(SCREEN_ATTRS(s))
 302 #define SET_SCREEN_PAIR(s,p)    SetPair(SCREEN_ATTRS(s), p)
 303
 304 #if USE_REENTRANT
 305 NCURSES_EXPORT(int *) _nc_ptr_Lines (void);
 306 NCURSES_EXPORT(int *) _nc_ptr_Cols (void);
 307 #define ptrLines() (SP ? &(SP->_LINES) : &(_nc_prescreen._LINES))
 308 #define ptrCols()  (SP ? &(SP->_COLS)  : &(_nc_prescreen._COLS))
 309 #define SET_LINES(value) *_nc_ptr_Lines() = value
 310 #define SET_COLS(value)  *_nc_ptr_Cols() = value
 311 #else
 312 #define ptrLines() &LINES
 313 #define ptrCols()  &COLS
 314 #define SET_LINES(value) LINES = value
 315 #define SET_COLS(value)  COLS = value
 316 #endif
 317
 318 #define TR_MUTEX(data) _tracef("%s@%d: me:%08lX COUNT:%2u/%2d/%6d/%2d/%s%9u: " #data, \
 319             __FILE__, __LINE__, \
 320             (unsigned long) (pthread_self()), \
 321             data.__data.__lock, \
 322             data.__data.__count, \
 323             data.__data.__owner, \
 324             data.__data.__kind, \
 325             (data.__data.__nusers > 5) ? " OOPS " : "", \
 326             data.__data.__nusers)
 327 #define TR_GLOBAL_MUTEX(name) TR_MUTEX(_nc_globals.mutex_##name)
 328
 329 #ifdef USE_PTHREADS
 330
 331 #if USE_REENTRANT
 332 #include <pthread.h>
 333 extern NCURSES_EXPORT(void) _nc_init_pthreads(void);
 334 extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *);
 335 extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *);
 336 extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *);
 337 extern NCURSES_EXPORT(int) _nc_mutex_unlock(pthread_mutex_t *);
 338 #define _nc_lock_global(name)   _nc_mutex_lock(&_nc_globals.mutex_##name)
 339 #define _nc_try_global(name)    _nc_mutex_trylock(&_nc_globals.mutex_##name)
 340 #define _nc_unlock_global(name) _nc_mutex_unlock(&_nc_globals.mutex_##name)
 341
 342 #else
 343 #error POSIX threads requires --enable-reentrant option
 344 #endif
 345
 346 #if USE_WEAK_SYMBOLS
 347 #if defined(__GNUC__)
 348 #  if defined __USE_ISOC99
 349 #    define _cat_pragma(exp)    _Pragma(#exp)
 350 #    define _weak_pragma(exp)   _cat_pragma(weak name)
 351 #  else
 352 #    define _weak_pragma(exp)
 353 #  endif
 354 #  define _declare(name)        __extension__ extern __typeof__(name) name
 355 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
 356 #endif
 357 #endif
 358
 359 #ifdef USE_PTHREADS
 360 #  if USE_WEAK_SYMBOLS
 361 weak_symbol(pthread_sigmask);
 362 weak_symbol(pthread_self);
 363 weak_symbol(pthread_equal);
 364 weak_symbol(pthread_mutex_init);
 365 weak_symbol(pthread_mutex_lock);
 366 weak_symbol(pthread_mutex_unlock);
 367 weak_symbol(pthread_mutex_trylock);
 368 weak_symbol(pthread_mutexattr_settype);
 369 weak_symbol(pthread_mutexattr_init);
 370 extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
 371 #    undef  sigprocmask
 372 #    define sigprocmask _nc_sigprocmask
 373 #  endif
 374 #endif
 375
 376 #if HAVE_NANOSLEEP
 377 #undef HAVE_NANOSLEEP
 378 #define HAVE_NANOSLEEP 0        /* nanosleep suspends all threads */
 379 #endif
 380
 381 #else /* !USE_PTHREADS */
 382
 383 #define _nc_init_pthreads()     /* nothing */
 384 #define _nc_mutex_init(obj)     /* nothing */
 385
 386 #define _nc_lock_global(name)   /* nothing */
 387 #define _nc_try_global(name)    0
 388 #define _nc_unlock_global(name) /* nothing */
 389
 390 #endif /* USE_PTHREADS */
 391
 392 #if HAVE_GETTIMEOFDAY
 393 # define PRECISE_GETTIME 1
 394 # define TimeType struct timeval
 395 #else
 396 # define PRECISE_GETTIME 0
 397 # define TimeType time_t
 398 #endif
 399
 400 /*
 401  * Definitions for color pairs
 402  */
 403 typedef unsigned colorpair_t;   /* type big enough to store PAIR_OF() */
 404 #define C_SHIFT 9               /* we need more bits than there are colors */
 405 #define C_MASK                  ((1 << C_SHIFT) - 1)
 406 #define PAIR_OF(fg, bg)         ((((fg) & C_MASK) << C_SHIFT) | ((bg) & C_MASK))
 407 #define isDefaultColor(c)       ((c) >= COLOR_DEFAULT || (c) < 0)
 408
 409 #define COLOR_DEFAULT           C_MASK
 410
 411 #if defined(USE_TERMLIB) && !defined(NEED_NCURSES_CH_T)
 412
 413 #undef NCURSES_CH_T             /* this is not a termlib feature */
 414 #define NCURSES_CH_T void       /* ...but we need a pointer in SCREEN */
 415
 416 #endif  /* USE_TERMLIB */
 417
 418 #ifndef USE_TERMLIB
 419 struct ldat
 420 {
 421         NCURSES_CH_T    *text;          /* text of the line */
 422         NCURSES_SIZE_T  firstchar;      /* first changed character in the line */
 423         NCURSES_SIZE_T  lastchar;       /* last changed character in the line */
 424         NCURSES_SIZE_T  oldindex;       /* index of the line at last update */
 425 };
 426 #endif  /* USE_TERMLIB */
 427
 428 typedef enum {
 429         M_XTERM = -1            /* use xterm's mouse tracking? */
 430         ,M_NONE = 0             /* no mouse device */
 431 #if USE_GPM_SUPPORT
 432         ,M_GPM                  /* use GPM */
 433 #endif
 434 #if USE_SYSMOUSE
 435         ,M_SYSMOUSE             /* FreeBSD sysmouse on console */
 436 #endif
 437 } MouseType;
 438
 439 /*
 440  * Structures for scrolling.
 441  */
 442
 443 typedef struct {
 444         unsigned long hashval;
 445         int oldcount, newcount;
 446         int oldindex, newindex;
 447 } HASHMAP;
 448
 449 /*
 450  * Structures for soft labels.
 451  */
 452
 453 struct _SLK;
 454
 455 #ifndef USE_TERMLIB
 456
 457 typedef struct
 458 {
 459         char *ent_text;         /* text for the label */
 460         char *form_text;        /* formatted text (left/center/...) */
 461         int ent_x;              /* x coordinate of this field */
 462         char dirty;             /* this label has changed */
 463         char visible;           /* field is visible */
 464 } slk_ent;
 465
 466 typedef struct _SLK {
 467         char dirty;             /* all labels have changed */
 468         char hidden;            /* soft labels are hidden */
 469         WINDOW *win;
 470         slk_ent *ent;
 471         short  maxlab;          /* number of available labels */
 472         short  labcnt;          /* number of allocated labels */
 473         short  maxlen;          /* length of labels */
 474         NCURSES_CH_T attr;      /* soft label attribute */
 475 } SLK;
 476
 477 #endif  /* USE_TERMLIB */
 478
 479 typedef struct {
 480         WINDOW *win;            /* the window used in the hook      */
 481         int     line;           /* lines to take, < 0 => from bottom*/
 482         int     (*hook)(WINDOW *, int); /* callback for user        */
 483 } ripoff_t;
 484
 485 #if USE_GPM_SUPPORT
 486 #undef buttons                  /* term.h defines this, and gpm uses it! */
 487 #include <gpm.h>
 488
 489 #ifdef HAVE_LIBDL
 490 /* link dynamically to GPM */
 491 typedef int *TYPE_gpm_fd;
 492 typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int);
 493 typedef int (*TYPE_Gpm_Close) (void);
 494 typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
 495
 496 #define my_gpm_fd       SP->_mouse_gpm_fd
 497 #define my_Gpm_Open     SP->_mouse_Gpm_Open
 498 #define my_Gpm_Close    SP->_mouse_Gpm_Close
 499 #define my_Gpm_GetEvent SP->_mouse_Gpm_GetEvent
 500 #else
 501 /* link statically to GPM */
 502 #define my_gpm_fd       &gpm_fd
 503 #define my_Gpm_Open     Gpm_Open
 504 #define my_Gpm_Close    Gpm_Close
 505 #define my_Gpm_GetEvent Gpm_GetEvent
 506 #endif /* HAVE_LIBDL */
 507 #endif /* USE_GPM_SUPPORT */
 508
 509 typedef struct {
 510     long sequence;
 511     bool last_used;
 512     char *fix_sgr0;             /* this holds the filtered sgr0 string */
 513     char *last_bufp;            /* help with fix_sgr0 leak */
 514     TERMINAL *last_term;
 515 } TGETENT_CACHE;
 516
 517 #define TGETENT_MAX 4
 518
 519 /*
 520  * State of tparm().
 521  */
 522 #define STACKSIZE 20
 523
 524 typedef struct {
 525         union {
 526                 int     num;
 527                 char    *str;
 528         } data;
 529         bool num_type;
 530 } STACK_FRAME;
 531
 532 #define NUM_VARS 26
 533
 534 typedef struct {
 535 #ifdef TRACE
 536         const char      *tname;
 537 #endif
 538         const char      *tparam_base;
 539
 540         STACK_FRAME     stack[STACKSIZE];
 541         int             stack_ptr;
 542
 543         char            *out_buff;
 544         size_t          out_size;
 545         size_t          out_used;
 546
 547         char            *fmt_buff;
 548         size_t          fmt_size;
 549
 550         int             dynamic_var[NUM_VARS];
 551         int             static_vars[NUM_VARS];
 552 } TPARM_STATE;
 553
 554 typedef struct {
 555     char *text;
 556     size_t size;
 557 } TRACEBUF;
 558
 559 /*
 560  * The filesystem database normally uses a single-letter for the lower level
 561  * of directories.  Use a hexadecimal code for filesystems which do not
 562  * preserve mixed-case names.
 563  */
 564 #if MIXEDCASE_FILENAMES
 565 #define LEAF_FMT "%c"
 566 #else
 567 #define LEAF_FMT "%02x"
 568 #endif
 569
 570 /*
 571  * TRACEMSE_FMT is no longer than 80 columns, there are 5 numbers that
 572  * could at most have 10 digits, and the mask contains no more than 32 bits
 573  * with each bit representing less than 15 characters.  Usually the whole
 574  * string is less than 80 columns, but this buffer size is an absolute
 575  * limit.
 576  */
 577 #define TRACEMSE_MAX    (80 + (5 * 10) + (32 * 15))
 578 #define TRACEMSE_FMT    "id %2d  at (%2d, %2d, %2d) state %4lx = {" /* } */
 579
 580 /*
 581  * Global data which is not specific to a screen.
 582  */
 583 typedef struct {
 584         SIG_ATOMIC_T    have_sigwinch;
 585         SIG_ATOMIC_T    cleanup_nested;
 586
 587         bool            init_signals;
 588         bool            init_screen;
 589
 590         const char      *comp_sourcename;
 591         char            *comp_termtype;
 592
 593         bool            have_tic_directory;
 594         bool            keep_tic_directory;
 595         const char      *tic_directory;
 596
 597         char            *dbi_list;
 598         int             dbi_size;
 599
 600         char            *first_name;
 601         char            **keyname_table;
 602
 603         int             slk_format;
 604
 605         char            *safeprint_buf;
 606         size_t          safeprint_used;
 607
 608         TGETENT_CACHE   tgetent_cache[TGETENT_MAX];
 609         int             tgetent_index;
 610         long            tgetent_sequence;
 611
 612         WINDOWLIST      *_nc_windowlist;
 613 #define _nc_windows     _nc_globals._nc_windowlist
 614
 615 #if USE_HOME_TERMINFO
 616         char            *home_terminfo;
 617 #endif
 618
 619 #if !USE_SAFE_SPRINTF
 620         int             safeprint_cols;
 621         int             safeprint_rows;
 622 #endif
 623
 624 #ifdef TRACE
 625         bool            init_trace;
 626         char            trace_fname[PATH_MAX];
 627         int             trace_level;
 628         FILE            *trace_fp;
 629
 630         char            *tracearg_buf;
 631         size_t          tracearg_used;
 632
 633         TRACEBUF        *tracebuf_ptr;
 634         size_t          tracebuf_used;
 635
 636         char            tracechr_buf[40];
 637
 638         char            *tracedmp_buf;
 639         size_t          tracedmp_used;
 640
 641         unsigned char   *tracetry_buf;
 642         size_t          tracetry_used;
 643
 644         char            traceatr_color_buf[2][80];
 645         int             traceatr_color_sel;
 646         int             traceatr_color_last;
 647
 648 #endif  /* TRACE */
 649
 650 #ifdef USE_PTHREADS
 651         pthread_mutex_t mutex_curses;
 652         pthread_mutex_t mutex_tst_tracef;
 653         pthread_mutex_t mutex_tracef;
 654         int             nested_tracef;
 655         int             use_pthreads;
 656 #define _nc_use_pthreads        _nc_globals.use_pthreads
 657 #endif
 658 } NCURSES_GLOBALS;
 659
 660 extern NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals;
 661
 662 #define N_RIPS 5
 663
 664 /*
 665  * Global data which can be swept up into a SCREEN when one is created.
 666  * It may be modified before the next SCREEN is created.
 667  */
 668 typedef struct {
 669         bool            use_env;
 670         bool            filter_mode;
 671         attr_t          previous_attr;
 672         ripoff_t        rippedoff[N_RIPS];
 673         ripoff_t        *rsp;
 674         TPARM_STATE     tparm_state;
 675         TTY             *saved_tty;     /* savetty/resetty information      */
 676 #if NCURSES_NO_PADDING
 677         bool            _no_padding;    /* flag to set if padding disabled  */
 678 #endif
 679 #if BROKEN_LINKER || USE_REENTRANT
 680         chtype          *real_acs_map;
 681         int             _LINES;
 682         int             _COLS;
 683         TERMINAL        *_cur_term;
 684 #ifdef TRACE
 685         long            _outchars;
 686         const char      *_tputs_trace;
 687 #endif
 688 #endif
 689 } NCURSES_PRESCREEN;
 690
 691 #define ripoff_sp       _nc_prescreen.rsp
 692 #define ripoff_stack    _nc_prescreen.rippedoff
 693
 694 extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen;
 695
 696 /*
 697  * The SCREEN structure.
 698  */
 699
 700 struct screen {
 701         int             _ifd;           /* input file ptr for screen        */
 702         FILE            *_ofp;          /* output file ptr for screen       */
 703         char            *_setbuf;       /* buffered I/O for output          */
 704         bool            _filtered;      /* filter() was called              */
 705         bool            _buffered;      /* setvbuf uses _setbuf data        */
 706         int             _checkfd;       /* filedesc for typeahead check     */
 707         TERMINAL        *_term;         /* terminal type information        */
 708         TTY             _saved_tty;     /* savetty/resetty information      */
 709         NCURSES_SIZE_T  _lines;         /* screen lines                     */
 710         NCURSES_SIZE_T  _columns;       /* screen columns                   */
 711
 712         NCURSES_SIZE_T  _lines_avail;   /* lines available for stdscr       */
 713         NCURSES_SIZE_T  _topstolen;     /* lines stolen from top            */
 714
 715         WINDOW          *_curscr;       /* current screen                   */
 716         WINDOW          *_newscr;       /* virtual screen to be updated to  */
 717         WINDOW          *_stdscr;       /* screen's full-window context     */
 718
 719         TRIES           *_keytry;       /* "Try" for use with keypad mode   */
 720         TRIES           *_key_ok;       /* Disabled keys via keyok(,FALSE)  */
 721         bool            _tried;         /* keypad mode was initialized      */
 722         bool            _keypad_on;     /* keypad mode is currently on      */
 723
 724         bool            _called_wgetch; /* check for recursion in wgetch()  */
 725         int             _fifo[FIFO_SIZE];       /* input push-back buffer   */
 726         short           _fifohead,      /* head of fifo queue               */
 727                         _fifotail,      /* tail of fifo queue               */
 728                         _fifopeek,      /* where to peek for next char      */
 729                         _fifohold;      /* set if breakout marked           */
 730
 731         int             _endwin;        /* are we out of window mode?       */
 732         NCURSES_CH_T    *_current_attr; /* holds current attributes set     */
 733         int             _coloron;       /* is color enabled?                */
 734         int             _color_defs;    /* are colors modified              */
 735         int             _cursor;        /* visibility of the cursor         */
 736         int             _cursrow;       /* physical cursor row              */
 737         int             _curscol;       /* physical cursor column           */
 738         bool            _notty;         /* true if we cannot switch non-tty */
 739         int             _nl;            /* True if NL -> CR/NL is on        */
 740         int             _raw;           /* True if in raw mode              */
 741         int             _cbreak;        /* 1 if in cbreak mode              */
 742                                         /* > 1 if in halfdelay mode         */
 743         int             _echo;          /* True if echo on                  */
 744         int             _use_meta;      /* use the meta key?                */
 745         struct _SLK     *_slk;          /* ptr to soft key struct / NULL    */
 746         int             slk_format;     /* selected format for this screen  */
 747         /* cursor movement costs; units are 10ths of milliseconds */
 748 #if NCURSES_NO_PADDING
 749         bool            _no_padding;    /* flag to set if padding disabled  */
 750 #endif
 751         int             _char_padding;  /* cost of character put            */
 752         int             _cr_cost;       /* cost of (carriage_return)        */
 753         int             _cup_cost;      /* cost of (cursor_address)         */
 754         int             _home_cost;     /* cost of (cursor_home)            */
 755         int             _ll_cost;       /* cost of (cursor_to_ll)           */
 756 #if USE_HARD_TABS
 757         int             _ht_cost;       /* cost of (tab)                    */
 758         int             _cbt_cost;      /* cost of (backtab)                */
 759 #endif /* USE_HARD_TABS */
 760         int             _cub1_cost;     /* cost of (cursor_left)            */
 761         int             _cuf1_cost;     /* cost of (cursor_right)           */
 762         int             _cud1_cost;     /* cost of (cursor_down)            */
 763         int             _cuu1_cost;     /* cost of (cursor_up)              */
 764         int             _cub_cost;      /* cost of (parm_cursor_left)       */
 765         int             _cuf_cost;      /* cost of (parm_cursor_right)      */
 766         int             _cud_cost;      /* cost of (parm_cursor_down)       */
 767         int             _cuu_cost;      /* cost of (parm_cursor_up)         */
 768         int             _hpa_cost;      /* cost of (column_address)         */
 769         int             _vpa_cost;      /* cost of (row_address)            */
 770         /* used in tty_update.c, must be chars */
 771         int             _ed_cost;       /* cost of (clr_eos)                */
 772         int             _el_cost;       /* cost of (clr_eol)                */
 773         int             _el1_cost;      /* cost of (clr_bol)                */
 774         int             _dch1_cost;     /* cost of (delete_character)       */
 775         int             _ich1_cost;     /* cost of (insert_character)       */
 776         int             _dch_cost;      /* cost of (parm_dch)               */
 777         int             _ich_cost;      /* cost of (parm_ich)               */
 778         int             _ech_cost;      /* cost of (erase_chars)            */
 779         int             _rep_cost;      /* cost of (repeat_char)            */
 780         int             _hpa_ch_cost;   /* cost of (column_address)         */
 781         int             _cup_ch_cost;   /* cost of (cursor_address)         */
 782         int             _cuf_ch_cost;   /* cost of (parm_cursor_right)      */
 783         int             _inline_cost;   /* cost of inline-move              */
 784         int             _smir_cost;     /* cost of (enter_insert_mode)      */
 785         int             _rmir_cost;     /* cost of (exit_insert_mode)       */
 786         int             _ip_cost;       /* cost of (insert_padding)         */
 787         /* used in lib_mvcur.c */
 788         char *          _address_cursor;
 789         /* used in tty_update.c */
 790         int             _scrolling;     /* 1 if terminal's smart enough to  */
 791
 792         /* used in lib_color.c */
 793         color_t         *_color_table;  /* screen's color palette            */
 794         int             _color_count;   /* count of colors in palette        */
 795         colorpair_t     *_color_pairs;  /* screen's color pair list          */
 796         int             _pair_count;    /* count of color pairs              */
 797 #if NCURSES_EXT_FUNCS
 798         bool            _default_color; /* use default colors                */
 799         bool            _has_sgr_39_49; /* has ECMA default color support    */
 800         int             _default_fg;    /* assumed default foreground        */
 801         int             _default_bg;    /* assumed default background        */
 802 #endif
 803         chtype          _ok_attributes; /* valid attributes for terminal     */
 804         chtype          _xmc_suppress;  /* attributes to suppress if xmc     */
 805         chtype          _xmc_triggers;  /* attributes to process if xmc      */
 806         chtype *        _acs_map;       /* the real alternate-charset map    */
 807         bool *          _screen_acs_map;
 808
 809
 810         /* used in lib_vidattr.c */
 811         bool            _use_rmso;      /* true if we may use 'rmso'         */
 812         bool            _use_rmul;      /* true if we may use 'rmul'         */
 813
 814         /*
 815          * These data correspond to the state of the idcok() and idlok()
 816          * functions.  A caveat is in order here:  the XSI and SVr4
 817          * documentation specify that these functions apply to the window which
 818          * is given as an argument.  However, ncurses implements this logic
 819          * only for the newscr/curscr update process, _not_ per-window.
 820          */
 821         bool            _nc_sp_idlok;
 822         bool            _nc_sp_idcok;
 823 #define _nc_idlok SP->_nc_sp_idlok
 824 #define _nc_idcok SP->_nc_sp_idcok
 825
 826         /*
 827          * These are the data that support the mouse interface.
 828          */
 829         bool            _mouse_initialized;
 830         MouseType       _mouse_type;
 831         int             _maxclick;
 832         bool            (*_mouse_event) (SCREEN *);
 833         bool            (*_mouse_inline)(SCREEN *);
 834         bool            (*_mouse_parse) (SCREEN *, int);
 835         void            (*_mouse_resume)(SCREEN *);
 836         void            (*_mouse_wrap)  (SCREEN *);
 837         int             _mouse_fd;      /* file-descriptor, if any */
 838         bool            _mouse_active;  /* true if initialized */
 839         mmask_t         _mouse_mask;
 840         NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */
 841         MEVENT          _mouse_events[EV_MAX];  /* hold the last mouse event seen */
 842         MEVENT          *_mouse_eventp; /* next free slot in event queue */
 843
 844 #if USE_GPM_SUPPORT
 845         bool            _mouse_gpm_loaded;
 846         bool            _mouse_gpm_found;
 847 #ifdef HAVE_LIBDL
 848         void            *_dlopen_gpm;
 849         TYPE_gpm_fd     _mouse_gpm_fd;
 850         TYPE_Gpm_Open   _mouse_Gpm_Open;
 851         TYPE_Gpm_Close  _mouse_Gpm_Close;
 852         TYPE_Gpm_GetEvent _mouse_Gpm_GetEvent;
 853 #endif
 854         Gpm_Connect     _mouse_gpm_connect;
 855 #endif /* USE_GPM_SUPPORT */
 856
 857 #if USE_EMX_MOUSE
 858         int             _emxmouse_wfd;
 859         int             _emxmouse_thread;
 860         int             _emxmouse_activated;
 861         char            _emxmouse_buttons[4];
 862 #endif
 863
 864 #if USE_SYSMOUSE
 865         MEVENT          _sysmouse_fifo[FIFO_SIZE];
 866         int             _sysmouse_head;
 867         int             _sysmouse_tail;
 868         int             _sysmouse_char_width;   /* character width */
 869         int             _sysmouse_char_height;  /* character height */
 870         int             _sysmouse_old_buttons;
 871         int             _sysmouse_new_buttons;
 872 #endif
 873
 874         /*
 875          * This supports automatic resizing
 876          */
 877 #if USE_SIZECHANGE
 878         int             (*_resize)(int,int);
 879 #endif
 880
 881         /*
 882          * These are data that support the proper handling of the panel stack on an
 883          * per screen basis.
 884          */
 885         struct panelhook _panelHook;
 886
 887         bool            _sig_winch;
 888         SCREEN          *_next_screen;
 889
 890         /* hashes for old and new lines */
 891         unsigned long   *oldhash, *newhash;
 892         HASHMAP         *hashtab;
 893         int             hashtab_len;
 894         int             *_oldnum_list;
 895         int             _oldnum_size;
 896
 897         bool            _cleanup;       /* cleanup after int/quit signal */
 898         int             (*_outch)(int); /* output handler if not putc */
 899
 900         int             _legacy_coding; /* see use_legacy_coding() */
 901
 902 #if USE_REENTRANT
 903         char            _ttytype[NAMESIZE];
 904         int             _ESCDELAY;
 905         int             _TABSIZE;
 906         int             _LINES;
 907         int             _COLS;
 908 #ifdef TRACE
 909         long            _outchars;
 910         const char      *_tputs_trace;
 911 #endif
 912 #endif
 913
 914 #ifdef TRACE
 915         char            tracechr_buf[40];
 916         char            tracemse_buf[TRACEMSE_MAX];
 917 #endif
 918         /*
 919          * ncurses/ncursesw are the same up to this point.
 920          */
 921 #if USE_WIDEC_SUPPORT
 922         /* recent versions of 'screen' have partially-working support for
 923          * UTF-8, but do not permit ACS at the same time (see tty_update.c).
 924          */
 925         bool            _screen_acs_fix;
 926 #endif
 927 };
 928
 929 extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain;
 930 extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
 931
 932         WINDOWLIST {
 933         WINDOW  win;            /* first, so WINDOW_EXT() works */
 934         WINDOWLIST *next;
 935         SCREEN *screen;         /* screen containing the window */
 936 #ifdef _XOPEN_SOURCE_EXTENDED
 937         char addch_work[(MB_LEN_MAX * 9) + 1];
 938         unsigned addch_used;    /* number of bytes in addch_work[] */
 939         int addch_x;            /* x-position for addch_work[] */
 940         int addch_y;            /* y-position for addch_work[] */
 941 #endif
 942 };
 943
 944 #define WINDOW_EXT(win,field) (((WINDOWLIST *)(win))->field)
 945
 946 /* usually in <limits.h> */
 947 #ifndef UCHAR_MAX
 948 #define UCHAR_MAX 255
 949 #endif
 950
 951 /* The terminfo source is assumed to be 7-bit ASCII */
 952 #define is7bits(c)      ((unsigned)(c) < 128)
 953
 954 /* Checks for isprint() should be done on 8-bit characters (non-wide) */
 955 #define is8bits(c)      ((unsigned)(c) <= UCHAR_MAX)
 956
 957 #ifndef min
 958 #define min(a,b)        ((a) > (b)  ?  (b)  :  (a))
 959 #endif
 960
 961 #ifndef max
 962 #define max(a,b)        ((a) < (b)  ?  (b)  :  (a))
 963 #endif
 964
 965 /* usually in <unistd.h> */
 966 #ifndef STDIN_FILENO
 967 #define STDIN_FILENO 0
 968 #endif
 969
 970 #ifndef STDOUT_FILENO
 971 #define STDOUT_FILENO 1
 972 #endif
 973
 974 #ifndef STDERR_FILENO
 975 #define STDERR_FILENO 2
 976 #endif
 977
 978 #ifndef EXIT_SUCCESS
 979 #define EXIT_SUCCESS 0
 980 #endif
 981
 982 #ifndef EXIT_FAILURE
 983 #define EXIT_FAILURE 1
 984 #endif
 985
 986 #ifndef R_OK
 987 #define R_OK    4               /* Test for read permission.  */
 988 #endif
 989 #ifndef W_OK
 990 #define W_OK    2               /* Test for write permission.  */
 991 #endif
 992 #ifndef X_OK
 993 #define X_OK    1               /* Test for execute permission.  */
 994 #endif
 995 #ifndef F_OK
 996 #define F_OK    0               /* Test for existence.  */
 997 #endif
 998
 999 #if HAVE_FCNTL_H
1000 #include <fcntl.h>              /* may define O_BINARY  */
1001 #endif
1002
1003 #ifndef O_BINARY
1004 #define O_BINARY 0
1005 #endif
1006
1007 #ifdef TRACE
1008 #if USE_REENTRANT
1009 #define COUNT_OUTCHARS(n) _nc_count_outchars(n);
1010 #else
1011 #define COUNT_OUTCHARS(n) _nc_outchars += (n);
1012 #endif
1013 #else
1014 #define COUNT_OUTCHARS(n) /* nothing */
1015 #endif
1016
1017 #define RESET_OUTCHARS() COUNT_OUTCHARS(-_nc_outchars)
1018
1019 #define UChar(c)        ((unsigned char)(c))
1020 #define ChCharOf(c)     ((c) & (chtype)A_CHARTEXT)
1021 #define ChAttrOf(c)     ((c) & (chtype)A_ATTRIBUTES)
1022
1023 #ifndef MB_LEN_MAX
1024 #define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */
1025 #endif
1026
1027 #if USE_WIDEC_SUPPORT /* { */
1028 #define isEILSEQ(status) (((size_t)status == (size_t)-1) && (errno == EILSEQ))
1029
1030 #define init_mb(state)  memset(&state, 0, sizeof(state))
1031
1032 #if NCURSES_EXT_COLORS
1033 #define NulColor        , 0
1034 #else
1035 #define NulColor        /* nothing */
1036 #endif
1037
1038 #define NulChar         0,0,0,0 /* FIXME: see CCHARW_MAX */
1039 #define CharOf(c)       ((c).chars[0])
1040 #define AttrOf(c)       ((c).attr)
1041
1042 #define AddAttr(c,a)    AttrOf(c) |=  ((a) & A_ATTRIBUTES)
1043 #define RemAttr(c,a)    AttrOf(c) &= ~((a) & A_ATTRIBUTES)
1044 #define SetAttr(c,a)    AttrOf(c) =   ((a) & A_ATTRIBUTES) | WidecExt(c)
1045
1046 #define NewChar2(c,a)   { a, { c, NulChar } NulColor }
1047 #define NewChar(ch)     NewChar2(ChCharOf(ch), ChAttrOf(ch))
1048
1049 #if CCHARW_MAX == 5
1050 #define CharEq(a,b)     (((a).attr == (b).attr) \
1051                        && (a).chars[0] == (b).chars[0] \
1052                        && (a).chars[1] == (b).chars[1] \
1053                        && (a).chars[2] == (b).chars[2] \
1054                        && (a).chars[3] == (b).chars[3] \
1055                        && (a).chars[4] == (b).chars[4] \
1056                         if_EXT_COLORS(&& (a).ext_color == (b).ext_color))
1057 #else
1058 #define CharEq(a,b)     (!memcmp(&(a), &(b), sizeof(a)))
1059 #endif
1060
1061 #define SetChar(ch,c,a) do {                                                        \
1062                             NCURSES_CH_T *_cp = &ch;                                \
1063                             memset(_cp, 0, sizeof(ch));                             \
1064                             _cp->chars[0] = (c);                                            \
1065                             _cp->attr = (a);                                        \
1066                             if_EXT_COLORS(SetPair(ch, PAIR_NUMBER(a)));             \
1067                         } while (0)
1068 #define CHREF(wch)      (&wch)
1069 #define CHDEREF(wch)    (*wch)
1070 #define ARG_CH_T        NCURSES_CH_T *
1071 #define CARG_CH_T       const NCURSES_CH_T *
1072 #define PUTC_DATA       char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \
1073                         mbstate_t PUT_st; wchar_t PUTC_ch
1074 #define PUTC_INIT       init_mb (PUT_st)
1075 #define PUTC(ch,b)      do { if(!isWidecExt(ch)) {                                  \
1076                         if (Charable(ch)) {                                         \
1077                             fputc(CharOf(ch), b);                                   \
1078                             COUNT_OUTCHARS(1);                                      \
1079                         } else {                                                    \
1080                             PUTC_INIT;                                              \
1081                             for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {       \
1082                                 PUTC_ch = (ch).chars[PUTC_i];                       \
1083                                 if (PUTC_ch == L'\0')                               \
1084                                     break;                                          \
1085                                 PUTC_n = wcrtomb(PUTC_buf,                          \
1086                                                  (ch).chars[PUTC_i], &PUT_st);      \
1087                                 if (PUTC_n <= 0) {                                  \
1088                                     if (PUTC_ch && is8bits(PUTC_ch) && PUTC_i == 0) \
1089                                         putc(PUTC_ch,b);                            \
1090                                     break;                                          \
1091                                 }                                                   \
1092                                 fwrite(PUTC_buf, (unsigned) PUTC_n, 1, b);          \
1093                             }                                                       \
1094                             COUNT_OUTCHARS(PUTC_i);                                 \
1095                         } } } while (0)
1096
1097 #define BLANK           NewChar2(' ', WA_NORMAL)
1098 #define ZEROS           NewChar2('\0', WA_NORMAL)
1099 #define ISBLANK(ch)     ((ch).chars[0] == L' ' && (ch).chars[1] == L'\0')
1100
1101         /*
1102          * Wide characters cannot be represented in the A_CHARTEXT mask of
1103          * attr_t's but an application might have set a narrow character there.
1104          * But even in that case, it would only be a printable character, or
1105          * zero.  Otherwise we can use those bits to tell if a cell is the
1106          * first or extension part of a wide character.
1107          */
1108 #define WidecExt(ch)    (AttrOf(ch) & A_CHARTEXT)
1109 #define isWidecBase(ch) (WidecExt(ch) == 1)
1110 #define isWidecExt(ch)  (WidecExt(ch) > 1 && WidecExt(ch) < 32)
1111 #define SetWidecExt(dst, ext)   AttrOf(dst) &= ~A_CHARTEXT,             \
1112                                 AttrOf(dst) |= (ext + 1)
1113
1114 #define if_WIDEC(code)  code
1115 #define Charable(ch)    ((SP != 0 && SP->_legacy_coding)                \
1116                          || (AttrOf(ch) & A_ALTCHARSET)                 \
1117                          || (!isWidecExt(ch) &&                         \
1118                              (ch).chars[1] == L'\0' &&                  \
1119                              _nc_is_charable(CharOf(ch))))
1120
1121 #define L(ch)           L ## ch
1122 #else /* }{ */
1123 #define CharOf(c)       ChCharOf(c)
1124 #define AttrOf(c)       ChAttrOf(c)
1125 #define AddAttr(c,a)    c |= (a)
1126 #define RemAttr(c,a)    c &= ~((a) & A_ATTRIBUTES)
1127 #define SetAttr(c,a)    c = ((c) & ~A_ATTRIBUTES) | (a)
1128 #define NewChar(ch)     (ch)
1129 #define NewChar2(c,a)   ((c) | (a))
1130 #define CharEq(a,b)     ((a) == (b))
1131 #define SetChar(ch,c,a) ch = (c) | (a)
1132 #define CHREF(wch)      wch
1133 #define CHDEREF(wch)    wch
1134 #define ARG_CH_T        NCURSES_CH_T
1135 #define CARG_CH_T       NCURSES_CH_T
1136 #define PUTC_DATA       int data = 0
1137 #define PUTC(ch,b)      do { data = CharOf(ch); putc(data,b); } while (0)
1138
1139 #define BLANK           (' '|A_NORMAL)
1140 #define ZEROS           ('\0'|A_NORMAL)
1141 #define ISBLANK(ch)     (CharOf(ch) == ' ')
1142
1143 #define isWidecExt(ch)  (0)
1144 #define if_WIDEC(code) /* nothing */
1145
1146 #define L(ch)           ch
1147 #endif /* } */
1148
1149 #define AttrOfD(ch)     AttrOf(CHDEREF(ch))
1150 #define CharOfD(ch)     CharOf(CHDEREF(ch))
1151 #define SetChar2(wch,ch)    SetChar(wch,ChCharOf(ch),ChAttrOf(ch))
1152
1153 #define BLANK_ATTR      A_NORMAL
1154 #define BLANK_TEXT      L(' ')
1155
1156 #define CHANGED     -1
1157
1158 #define LEGALYX(w, y, x) \
1159               ((w) != 0 && \
1160                 ((x) >= 0 && (x) <= (w)->_maxx && \
1161                  (y) >= 0 && (y) <= (w)->_maxy))
1162
1163 #define CHANGED_CELL(line,col) \
1164         if (line->firstchar == _NOCHANGE) \
1165                 line->firstchar = line->lastchar = col; \
1166         else if ((col) < line->firstchar) \
1167                 line->firstchar = col; \
1168         else if ((col) > line->lastchar) \
1169                 line->lastchar = col
1170
1171 #define CHANGED_RANGE(line,start,end) \
1172         if (line->firstchar == _NOCHANGE \
1173          || line->firstchar > (start)) \
1174                 line->firstchar = start; \
1175         if (line->lastchar == _NOCHANGE \
1176          || line->lastchar < (end)) \
1177                 line->lastchar = end
1178
1179 #define CHANGED_TO_EOL(line,start,end) \
1180         if (line->firstchar == _NOCHANGE \
1181          || line->firstchar > (start)) \
1182                 line->firstchar = start; \
1183         line->lastchar = end
1184
1185 #define SIZEOF(v) (sizeof(v)/sizeof(v[0]))
1186
1187 #define FreeIfNeeded(p)  if ((p) != 0) free(p)
1188
1189 /* FreeAndNull() is not a comma-separated expression because some compilers
1190  * do not accept a mixture of void with values.
1191  */
1192 #define FreeAndNull(p)   free(p); p = 0
1193
1194 #include <nc_alloc.h>
1195
1196 /*
1197  * TTY bit definition for converting tabs to spaces.
1198  */
1199 #ifdef TAB3
1200 # define OFLAGS_TABS TAB3       /* POSIX specifies TAB3 */
1201 #else
1202 # ifdef XTABS
1203 #  define OFLAGS_TABS XTABS     /* XTABS is usually the "same" */
1204 # else
1205 #  ifdef OXTABS
1206 #   define OFLAGS_TABS OXTABS   /* the traditional BSD equivalent */
1207 #  else
1208 #   define OFLAGS_TABS 0
1209 #  endif
1210 # endif
1211 #endif
1212
1213 /*
1214  * Standardize/simplify common loops
1215  */
1216 #define each_screen(p) p = _nc_screen_chain; p != 0; p = (p)->_next_screen
1217 #define each_window(p) p = _nc_windows; p != 0; p = (p)->next
1218 #define each_ripoff(p) p = ripoff_stack; (p - ripoff_stack) < N_RIPS; ++p
1219
1220 /*
1221  * Prefixes for call/return points of library function traces.  We use these to
1222  * instrument the public functions so that the traces can be easily transformed
1223  * into regression scripts.
1224  */
1225 #define T_CALLED(fmt) "called {" fmt
1226 #define T_CREATE(fmt) "create :" fmt
1227 #define T_RETURN(fmt) "return }" fmt
1228
1229 #ifdef TRACE
1230
1231 #if USE_REENTRANT
1232 #define TPUTS_TRACE(s)  _nc_set_tputs_trace(s);
1233 #else
1234 #define TPUTS_TRACE(s)  _nc_tputs_trace = s;
1235 #endif
1236
1237 #define START_TRACE() \
1238         if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \
1239             int t = _nc_getenv_num("NCURSES_TRACE"); \
1240             if (t >= 0) \
1241                 trace((unsigned) t); \
1242         }
1243
1244 /*
1245  * Many of the _tracef() calls use static buffers; lock the trace state before
1246  * trying to fill them.
1247  */
1248 #if USE_REENTRANT
1249 #define USE_TRACEF(mask) _nc_use_tracef(mask)
1250 extern NCURSES_EXPORT(int)      _nc_use_tracef (unsigned);
1251 extern NCURSES_EXPORT(void)     _nc_locked_tracef (const char *, ...) GCC_PRINTFLIKE(1,2);
1252 #else
1253 #define USE_TRACEF(mask) (_nc_tracing & (mask))
1254 #define _nc_locked_tracef _tracef
1255 #endif
1256
1257 #define TR(n, a)        if (USE_TRACEF(n)) _nc_locked_tracef a
1258 #define T(a)            TR(TRACE_CALLS, a)
1259 #define TRACE_RETURN(value,type) return _nc_retrace_##type(value)
1260
1261 #define returnAttr(code)        TRACE_RETURN(code,attr_t)
1262 #define returnBits(code)        TRACE_RETURN(code,unsigned)
1263 #define returnBool(code)        TRACE_RETURN(code,bool)
1264 #define returnCPtr(code)        TRACE_RETURN(code,cptr)
1265 #define returnCVoidPtr(code)    TRACE_RETURN(code,cvoid_ptr)
1266 #define returnChar(code)        TRACE_RETURN(code,chtype)
1267 #define returnCode(code)        TRACE_RETURN(code,int)
1268 #define returnPtr(code)         TRACE_RETURN(code,ptr)
1269 #define returnSP(code)          TRACE_RETURN(code,sp)
1270 #define returnVoid              T((T_RETURN(""))); return
1271 #define returnVoidPtr(code)     TRACE_RETURN(code,void_ptr)
1272 #define returnWin(code)         TRACE_RETURN(code,win)
1273
1274 extern NCURSES_EXPORT(NCURSES_BOOL)     _nc_retrace_bool (NCURSES_BOOL);
1275 extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *);
1276 extern NCURSES_EXPORT(SCREEN *)         _nc_retrace_sp (SCREEN *);
1277 extern NCURSES_EXPORT(WINDOW *)         _nc_retrace_win (WINDOW *);
1278 extern NCURSES_EXPORT(attr_t)           _nc_retrace_attr_t (attr_t);
1279 extern NCURSES_EXPORT(char *)           _nc_retrace_ptr (char *);
1280 extern NCURSES_EXPORT(char *)           _nc_trace_ttymode(TTY *tty);
1281 extern NCURSES_EXPORT(char *)           _nc_varargs (const char *, va_list);
1282 extern NCURSES_EXPORT(chtype)           _nc_retrace_chtype (chtype);
1283 extern NCURSES_EXPORT(const char *)     _nc_altcharset_name(attr_t, chtype);
1284 extern NCURSES_EXPORT(const char *)     _nc_retrace_cptr (const char *);
1285 extern NCURSES_EXPORT(int)              _nc_retrace_int (int);
1286 extern NCURSES_EXPORT(unsigned)         _nc_retrace_unsigned (unsigned);
1287 extern NCURSES_EXPORT(void *)           _nc_retrace_void_ptr (void *);
1288 extern NCURSES_EXPORT(void)             _nc_fifo_dump (SCREEN *);
1289
1290 #if USE_REENTRANT
1291 NCURSES_WRAPPED_VAR(long, _nc_outchars);
1292 NCURSES_WRAPPED_VAR(const char *, _nc_tputs_trace);
1293 #define _nc_outchars       NCURSES_PUBLIC_VAR(_nc_outchars())
1294 #define _nc_tputs_trace    NCURSES_PUBLIC_VAR(_nc_tputs_trace())
1295 extern NCURSES_EXPORT(void)             _nc_set_tputs_trace (const char *);
1296 extern NCURSES_EXPORT(void)             _nc_count_outchars (long);
1297 #else
1298 extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace;
1299 extern NCURSES_EXPORT_VAR(long)         _nc_outchars;
1300 #endif
1301
1302 extern NCURSES_EXPORT_VAR(unsigned)     _nc_tracing;
1303
1304 #if USE_WIDEC_SUPPORT
1305 extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *);
1306 extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int);
1307 #endif
1308
1309 extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int);
1310 extern NCURSES_EXPORT(const char *) _nc_viscbuf (const NCURSES_CH_T *, int);
1311
1312 #else /* !TRACE */
1313
1314 #define START_TRACE() /* nothing */
1315
1316 #define T(a)
1317 #define TR(n, a)
1318 #define TPUTS_TRACE(s)
1319
1320 #define returnAttr(code)        return code
1321 #define returnBits(code)        return code
1322 #define returnBool(code)        return code
1323 #define returnCPtr(code)        return code
1324 #define returnCVoidPtr(code)    return code
1325 #define returnChar(code)        return code
1326 #define returnCode(code)        return code
1327 #define returnPtr(code)         return code
1328 #define returnSP(code)          return code
1329 #define returnVoid              return
1330 #define returnVoidPtr(code)     return code
1331 #define returnWin(code)         return code
1332
1333 #endif /* TRACE/!TRACE */
1334
1335 /*
1336  * Return-codes for tgetent() and friends.
1337  */
1338 #define TGETENT_YES  1          /* entry is found */
1339 #define TGETENT_NO   0          /* entry is not found */
1340 #define TGETENT_ERR -1          /* an error occurred */
1341
1342 extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
1343 extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int);
1344
1345 #define EMPTY_MODULE(name) \
1346 extern  NCURSES_EXPORT(void) name (void); \
1347         NCURSES_EXPORT(void) name (void) { }
1348
1349 #define ALL_BUT_COLOR ((chtype)~(A_COLOR))
1350 #define NONBLANK_ATTR (A_NORMAL|A_BOLD|A_DIM|A_BLINK)
1351 #define XMC_CHANGES(c) ((c) & SP->_xmc_suppress)
1352
1353 #define toggle_attr_on(S,at) {\
1354    if (PAIR_NUMBER(at) > 0) {\
1355       (S) = ((S) & ALL_BUT_COLOR) | (at);\
1356    } else {\
1357       (S) |= (at);\
1358    }\
1359    TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1360
1361
1362 #define toggle_attr_off(S,at) {\
1363    if (PAIR_NUMBER(at) > 0) {\
1364       (S) &= ~(at|A_COLOR);\
1365    } else {\
1366       (S) &= ~(at);\
1367    }\
1368    TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1369
1370 #define DelCharCost(count) \
1371                 ((parm_dch != 0) \
1372                 ? SP->_dch_cost \
1373                 : ((delete_character != 0) \
1374                         ? (SP->_dch1_cost * count) \
1375                         : INFINITY))
1376
1377 #define InsCharCost(count) \
1378                 ((parm_ich != 0) \
1379                 ? SP->_ich_cost \
1380                 : ((enter_insert_mode && exit_insert_mode) \
1381                   ? SP->_smir_cost + SP->_rmir_cost + (SP->_ip_cost * count) \
1382                   : ((insert_character != 0) \
1383                     ? ((SP->_ich1_cost + SP->_ip_cost) * count) \
1384                     : INFINITY)))
1385
1386 #if USE_XMC_SUPPORT
1387 #define UpdateAttrs(c)  if (!SameAttrOf(SCREEN_ATTRS(SP), c)) { \
1388                                 attr_t chg = AttrOf(SCREEN_ATTRS(SP)); \
1389                                 VIDATTR(AttrOf(c), GetPair(c)); \
1390                                 if (magic_cookie_glitch > 0 \
1391                                  && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(SP))))) { \
1392                                         T(("%s @%d before glitch %d,%d", \
1393                                                 __FILE__, __LINE__, \
1394                                                 SP->_cursrow, \
1395                                                 SP->_curscol)); \
1396                                         _nc_do_xmc_glitch(chg); \
1397                                 } \
1398                         }
1399 #else
1400 #define UpdateAttrs(c)  if (!SameAttrOf(SCREEN_ATTRS(SP), c)) \
1401                                 VIDATTR(AttrOf(c), GetPair(c));
1402 #endif
1403
1404 /*
1405  * Macros to make additional parameter to implement wgetch_events()
1406  */
1407 #ifdef NCURSES_WGETCH_EVENTS
1408 #define EVENTLIST_0th(param) param
1409 #define EVENTLIST_1st(param) param
1410 #define EVENTLIST_2nd(param) , param
1411 #else
1412 #define EVENTLIST_0th(param) void
1413 #define EVENTLIST_1st(param) /* nothing */
1414 #define EVENTLIST_2nd(param) /* nothing */
1415 #endif
1416
1417 #if NCURSES_EXPANDED && NCURSES_EXT_FUNCS
1418
1419 #undef  toggle_attr_on
1420 #define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at)
1421 extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t);
1422
1423 #undef  toggle_attr_off
1424 #define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at)
1425 extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t);
1426
1427 #undef  DelCharCost
1428 #define DelCharCost(count) _nc_DelCharCost(count)
1429 extern NCURSES_EXPORT(int) _nc_DelCharCost (int);
1430
1431 #undef  InsCharCost
1432 #define InsCharCost(count) _nc_InsCharCost(count)
1433 extern NCURSES_EXPORT(int) _nc_InsCharCost (int);
1434
1435 #undef  UpdateAttrs
1436 #define UpdateAttrs(c) _nc_UpdateAttrs(c)
1437 extern NCURSES_EXPORT(void) _nc_UpdateAttrs (NCURSES_CH_T);
1438
1439 #else
1440
1441 extern NCURSES_EXPORT(void) _nc_expanded (void);
1442
1443 #endif
1444
1445 #if !NCURSES_EXT_FUNCS
1446 #define set_escdelay(value) ESCDELAY = value
1447 #endif
1448
1449 #if !HAVE_GETCWD
1450 #define getcwd(buf,len) getwd(buf)
1451 #endif
1452
1453 /* charable.c */
1454 #if USE_WIDEC_SUPPORT
1455 extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t);
1456 extern NCURSES_EXPORT(int) _nc_to_char(wint_t);
1457 extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int);
1458 #endif
1459
1460 /* comp_captab.c */
1461 typedef struct {
1462         short   nte_name;       /* offset of name to hash on */
1463         int     nte_type;       /* BOOLEAN, NUMBER or STRING */
1464         short   nte_index;      /* index of associated variable in its array */
1465         short   nte_link;       /* index in table of next hash, or -1 */
1466 } name_table_data;
1467
1468 typedef struct
1469 {
1470         short   from;
1471         short   to;
1472         short   source;
1473 } alias_table_data;
1474
1475 /* doupdate.c */
1476 #if USE_XMC_SUPPORT
1477 extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t);
1478 #endif
1479
1480 /* hardscroll.c */
1481 #if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
1482 extern NCURSES_EXPORT(void) _nc_linedump (void);
1483 #endif
1484
1485 /* lib_acs.c */
1486 extern NCURSES_EXPORT(void) _nc_init_acs (void);        /* corresponds to traditional 'init_acs()' */
1487 extern NCURSES_EXPORT(int) _nc_msec_cost (const char *const, int);  /* used by 'tack' program */
1488
1489 /* lib_addch.c */
1490 #if USE_WIDEC_SUPPORT
1491 NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch);
1492 #endif
1493
1494 /* lib_addstr.c */
1495 #if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB)
1496 extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *);
1497 #endif
1498
1499 /* lib_color.c */
1500 extern NCURSES_EXPORT(bool) _nc_reset_colors(void);
1501
1502 /* lib_getch.c */
1503 extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, unsigned long *, int EVENTLIST_2nd(_nc_eventlist *));
1504
1505 /* lib_insch.c */
1506 extern NCURSES_EXPORT(int) _nc_insert_ch(WINDOW *, chtype);
1507
1508 /* lib_mvcur.c */
1509 #define INFINITY        1000000 /* cost: too high to use */
1510
1511 extern NCURSES_EXPORT(void) _nc_mvcur_init (void);
1512 extern NCURSES_EXPORT(void) _nc_mvcur_resume (void);
1513 extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void);
1514
1515 extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int);
1516
1517 extern NCURSES_EXPORT(void) _nc_screen_init (void);
1518 extern NCURSES_EXPORT(void) _nc_screen_resume (void);
1519 extern NCURSES_EXPORT(void) _nc_screen_wrap (void);
1520
1521 /* lib_mouse.c */
1522 extern NCURSES_EXPORT(int) _nc_has_mouse (void);
1523
1524 /* lib_mvcur.c */
1525 #define INFINITY        1000000 /* cost: too high to use */
1526 #define BAUDBYTE        9       /* 9 = 7 bits + 1 parity + 1 stop */
1527
1528 /* lib_setup.c */
1529 extern NCURSES_EXPORT(char *) _nc_get_locale(void);
1530 extern NCURSES_EXPORT(int) _nc_unicode_locale(void);
1531 extern NCURSES_EXPORT(int) _nc_locale_breaks_acs(TERMINAL *);
1532 extern NCURSES_EXPORT(int) _nc_setupterm(NCURSES_CONST char *, int, int *, bool);
1533 extern NCURSES_EXPORT(void) _nc_get_screensize(SCREEN *, int *, int *);
1534
1535 /* lib_tstp.c */
1536 #if USE_SIGWINCH
1537 extern NCURSES_EXPORT(int) _nc_handle_sigwinch(SCREEN *);
1538 #else
1539 #define _nc_handle_sigwinch(a) /* nothing */
1540 #endif
1541
1542 /* lib_ungetch.c */
1543 extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int);
1544
1545 /* lib_wacs.c */
1546 #if USE_WIDEC_SUPPORT
1547 extern NCURSES_EXPORT(void) _nc_init_wacs(void);
1548 #endif
1549
1550 typedef struct {
1551     char *s_head;       /* beginning of the string (may be null) */
1552     char *s_tail;       /* end of the string (may be null) */
1553     size_t s_size;      /* current remaining size available */
1554     size_t s_init;      /* total size available */
1555 } string_desc;
1556
1557 /* strings.c */
1558 extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t);
1559 extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t);
1560 extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, string_desc *);
1561 extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *);
1562 extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *);
1563
1564 #if !HAVE_STRSTR
1565 #define strstr _nc_strstr
1566 extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *);
1567 #endif
1568
1569 /* safe_sprintf.c */
1570 extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list);
1571
1572 /* tries.c */
1573 extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned);
1574 extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t);
1575 extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned);
1576 extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *);
1577
1578 /* elsewhere ... */
1579 extern NCURSES_EXPORT(ENTRY *) _nc_delink_entry (ENTRY *, TERMTYPE *);
1580 extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int);
1581 extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype);
1582 extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *);
1583 extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int);
1584 extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t);
1585 extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *);
1586 extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int);
1587 extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *);
1588 extern NCURSES_EXPORT(int) _nc_access (const char *, int);
1589 extern NCURSES_EXPORT(int) _nc_baudrate (int);
1590 extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *);
1591 extern NCURSES_EXPORT(int) _nc_getenv_num (const char *);
1592 extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, bool);
1593 extern NCURSES_EXPORT(int) _nc_ospeed (int);
1594 extern NCURSES_EXPORT(int) _nc_outch (int);
1595 extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE *const);
1596 extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, bool, int);
1597 extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *));
1598 extern NCURSES_EXPORT(void) _nc_do_color (short, short, bool, int (*)(int));
1599 extern NCURSES_EXPORT(void) _nc_flush (void);
1600 extern NCURSES_EXPORT(void) _nc_free_and_exit (int);
1601 extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE *);
1602 extern NCURSES_EXPORT(void) _nc_freeall (void);
1603 extern NCURSES_EXPORT(void) _nc_hash_map (void);
1604 extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *);
1605 extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *);
1606 extern NCURSES_EXPORT(void) _nc_make_oldhash (int i);
1607 extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot);
1608 extern NCURSES_EXPORT(void) _nc_scroll_optimize (void);
1609 extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, bool);
1610 extern NCURSES_EXPORT(void) _nc_signal_handler (bool);
1611 extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *);
1612 extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *);
1613
1614 #if NO_LEAKS
1615 extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void);
1616 extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void);
1617 extern NCURSES_EXPORT(void) _nc_codes_leaks(void);
1618 extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void);
1619 extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void);
1620 extern NCURSES_EXPORT(void) _nc_keyname_leaks(void);
1621 extern NCURSES_EXPORT(void) _nc_names_leaks(void);
1622 extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void);
1623 #endif
1624
1625 #ifndef USE_TERMLIB
1626 extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T);
1627 extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T);
1628 extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, NCURSES_SIZE_T const, NCURSES_SIZE_T const, NCURSES_CH_T);
1629 #endif
1630
1631 #if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB)
1632 extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *);
1633 #endif
1634
1635 #if USE_SIZECHANGE
1636 extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *);
1637 #endif
1638
1639 #if HAVE_RESIZETERM
1640 extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *);
1641 #else
1642 #define _nc_resize_margins(wp) /* nothing */
1643 #endif
1644
1645 #ifdef NCURSES_WGETCH_EVENTS
1646 extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *);
1647 #else
1648 #define wgetch_events(win, evl) wgetch(win)
1649 #define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen)
1650 #endif
1651
1652 /*
1653  * Not everyone has vsscanf(), but we'd like to use it for scanw().
1654  */
1655 #if !HAVE_VSSCANF
1656 extern int vsscanf(const char *str, const char *format, va_list __arg);
1657 #endif
1658
1659 /* scroll indices */
1660 extern NCURSES_EXPORT_VAR(int *) _nc_oldnums;
1661
1662 #define USE_SETBUF_0 0
1663
1664 #define NC_BUFFERED(flag) _nc_set_buffer(SP->_ofp, flag)
1665
1666 #define NC_OUTPUT ((SP != 0) ? SP->_ofp : stdout)
1667
1668 /*
1669  * On systems with a broken linker, define 'SP' as a function to force the
1670  * linker to pull in the data-only module with 'SP'.
1671  */
1672 #if BROKEN_LINKER
1673 #define SP _nc_screen()
1674 extern NCURSES_EXPORT(SCREEN *) _nc_screen (void);
1675 extern NCURSES_EXPORT(int) _nc_alloc_screen (void);
1676 extern NCURSES_EXPORT(void) _nc_set_screen (SCREEN *);
1677 #else
1678 /* current screen is private data; avoid possible linking conflicts too */
1679 extern NCURSES_EXPORT_VAR(SCREEN *) SP;
1680 #define _nc_alloc_screen() ((SP = typeCalloc(SCREEN, 1)) != 0)
1681 #define _nc_set_screen(sp) SP = sp
1682 #endif
1683
1684 /*
1685  * We don't want to use the lines or columns capabilities internally, because
1686  * if the application is running multiple screens under X, it's quite possible
1687  * they could all have type xterm but have different sizes!  So...
1688  */
1689 #define screen_lines    SP->_lines
1690 #define screen_columns  SP->_columns
1691
1692 extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int);
1693
1694 /*
1695  * Some constants related to SLK's
1696  */
1697 #define MAX_SKEY_OLD       8    /* count of soft keys */
1698 #define MAX_SKEY_LEN_OLD   8    /* max length of soft key text */
1699 #define MAX_SKEY_PC       12    /* This is what most PC's have */
1700 #define MAX_SKEY_LEN_PC    5
1701
1702 /* Macro to check whether or not we use a standard format */
1703 #define SLK_STDFMT(fmt) (fmt < 3)
1704 /* Macro to determine height of label window */
1705 #define SLK_LINES(fmt)  (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2))
1706
1707 #define MAX_SKEY(fmt)     (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC)
1708 #define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC)
1709
1710 extern NCURSES_EXPORT(int) _nc_ripoffline (int line, int (*init)(WINDOW *,int));
1711
1712 /*
1713  * Common error messages
1714  */
1715 #define MSG_NO_MEMORY "Out of memory"
1716 #define MSG_NO_INPUTS "Premature EOF"
1717
1718 #ifdef __cplusplus
1719 }
1720 #endif
1721
1722 #endif /* CURSES_PRIV_H */