payloads/libpayload/curses/curses.priv.h

   1 /****************************************************************************
   2  * Copyright (c) 1998-2005,2006 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  * $Id: curses.priv.h,v 1.314 2006/12/10 00:55:14 tom Exp $
  37  *
  38  *      curses.priv.h
  39  *
  40  *      Header file for curses library objects which are private to
  41  *      the library.
  42  *
  43  */
  44
  45 #ifndef _CURSES_PRIV_H
  46 #define _CURSES_PRIV_H 1
  47
  48 //// #include <ncurses_dll.h>
  49
  50 #ifdef __cplusplus
  51 extern "C" {
  52 #endif
  53
  54 //// #include <ncurses_cfg.h>
  55
  56 #if USE_RCS_IDS
  57 #define MODULE_ID(id) static const char Ident[] = id;
  58 #else
  59 #define MODULE_ID(id) /*nothing*/
  60 #endif
  61
  62 #include <stdlib.h>
  63 #include <string.h>
  64 #include <sys/types.h>
  65
  66 #if HAVE_UNISTD_H
  67 #include <unistd.h>
  68 #endif
  69
  70 //// #if HAVE_SYS_BSDTYPES_H
  71 //// #include <sys/bsdtypes.h>  /* needed for ISC */
  72 //// #endif
  73
  74 #if HAVE_LIMITS_H
  75 # include <limits.h>
  76 //// #elif HAVE_SYS_PARAM_H
  77 //// # include <sys/param.h>
  78 #endif
  79 ////
  80 //// #include <assert.h>
  81 #include <stdio.h>
  82
  83 #include <errno.h>
  84
  85 #if DECL_ERRNO
  86 extern int errno;
  87 #endif
  88
  89 //// #include <nc_panel.h>
  90 ////
  91 //// /* Some systems have a broken 'select()', but workable 'poll()'.  Use that */
  92 //// #if HAVE_WORKING_POLL
  93 //// #define USE_FUNC_POLL 1
  94 //// #if HAVE_POLL_H
  95 //// #include <poll.h>
  96 //// #else
  97 //// #include <sys/poll.h>
  98 //// #endif
  99 //// #else
 100 //// #define USE_FUNC_POLL 0
 101 //// #endif
 102 ////
 103 //// /* include signal.h before curses.h to work-around defect in glibc 2.1.3 */
 104 //// #include <signal.h>
 105
 106 /* Alessandro Rubini's GPM (general-purpose mouse) */
 107 #if HAVE_LIBGPM && HAVE_GPM_H
 108 #define USE_GPM_SUPPORT 1
 109 #else
 110 #define USE_GPM_SUPPORT 0
 111 #endif
 112
 113 /* QNX mouse support */
 114 #if defined(__QNX__) && !defined(__QNXNTO__)
 115 #define USE_QNX_MOUSE 1
 116 #else
 117 #define USE_QNX_MOUSE 0
 118 #endif
 119
 120 /* EMX mouse support */
 121 #ifdef __EMX__
 122 #define USE_EMX_MOUSE 1
 123 #else
 124 #define USE_EMX_MOUSE 0
 125 #endif
 126
 127 #define DEFAULT_MAXCLICK 166
 128 #define EV_MAX          8       /* size of mouse circular event queue */
 129
 130 /*
 131  * If we don't have signals to support it, don't add a sigwinch handler.
 132  * In any case, resizing is an extended feature.  Use it if we've got it.
 133  */
 134 #if !NCURSES_EXT_FUNCS
 135 #undef HAVE_SIZECHANGE
 136 #define HAVE_SIZECHANGE 0
 137 #endif
 138
 139 #if HAVE_SIZECHANGE && defined(SIGWINCH)
 140 #define USE_SIZECHANGE 1
 141 #else
 142 #define USE_SIZECHANGE 0
 143 #undef USE_SIGWINCH
 144 #define USE_SIGWINCH 0
 145 #endif
 146
 147 /*
 148  * If desired, one can configure this, disabling environment variables that
 149  * point to custom terminfo/termcap locations.
 150  */
 151 #ifdef USE_ROOT_ENVIRON
 152 #define use_terminfo_vars() 1
 153 #else
 154 #define use_terminfo_vars() _nc_env_access()
 155 extern NCURSES_EXPORT(int) _nc_env_access (void);
 156 #endif
 157
 158 /*
 159  * Not all platforms have memmove; some have an equivalent bcopy.  (Some may
 160  * have neither).
 161  */
 162 #if USE_OK_BCOPY
 163 #define memmove(d,s,n) bcopy(s,d,n)
 164 #elif USE_MY_MEMMOVE
 165 #define memmove(d,s,n) _nc_memmove(d,s,n)
 166 extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
 167 #endif
 168
 169 /*
 170  * Scroll hints are useless when hashmap is used
 171  */
 172 //// #if !USE_SCROLL_HINTS
 173 //// #if !USE_HASHMAP
 174 //// #define USE_SCROLL_HINTS 1
 175 //// #else
 176 //// #define USE_SCROLL_HINTS 0
 177 //// #endif
 178 //// #endif
 179
 180 #if USE_SCROLL_HINTS
 181 #define if_USE_SCROLL_HINTS(stmt) stmt
 182 #else
 183 #define if_USE_SCROLL_HINTS(stmt) /*nothing*/
 184 #endif
 185
 186 /*
 187  * Note:  ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
 188  * when we're throwing control codes at the screen at high volume.  To see
 189  * this, re-enable USE_HARD_TABS and run worm for a while.  Other systems
 190  * probably don't want to define this either due to uncertainties about tab
 191  * delays and expansion in raw mode.
 192  */
 193
 194 struct tries {
 195         struct tries    *child;     /* ptr to child.  NULL if none          */
 196         struct tries    *sibling;   /* ptr to sibling.  NULL if none        */
 197         unsigned char    ch;        /* character at this node               */
 198         unsigned short   value;     /* code of string so far.  0 if none.   */
 199 };
 200
 201 /*
 202  * Common/troublesome character definitions
 203  */
 204 #define L_BRACE '{'
 205 #define R_BRACE '}'
 206 #define S_QUOTE '\''
 207 #define D_QUOTE '"'
 208
 209 #define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~"
 210
 211 /*
 212  * Structure for palette tables
 213  */
 214
 215 typedef struct
 216 {
 217     short red, green, blue;     /* what color_content() returns */
 218     short r, g, b;              /* params to init_color() */
 219     int init;                   /* true if we called init_color() */
 220 }
 221 color_t;
 222
 223 #define MAXCOLUMNS    135
 224 #define MAXLINES      66
 225 #define FIFO_SIZE     MAXCOLUMNS+2  /* for nocbreak mode input */
 226
 227 #define ACS_LEN       128
 228
 229 #define WINDOWLIST struct _win_list
 230
 231 #if USE_WIDEC_SUPPORT
 232 #define _nc_bkgd    _bkgrnd
 233 #else
 234 #undef _XOPEN_SOURCE_EXTENDED
 235 #define _nc_bkgd    _bkgd
 236 #define wgetbkgrnd(win, wch)    *wch = win->_bkgd
 237 #define wbkgrnd     wbkgd
 238 #endif
 239
 240 //// #include <curses.h>        /* we'll use -Ipath directive to get the right one! */
 241 //// #include <term.h>
 242 //// #include <term_entry.h>
 243 //// #include <nc_tparm.h>
 244
 245 #if NCURSES_EXT_COLORS && USE_WIDEC_SUPPORT
 246 #define if_EXT_COLORS(stmt)     stmt
 247 #define NetPair(value,p)        (value).ext_color = (p), \
 248                                 AttrOf(value) &= ALL_BUT_COLOR, \
 249                                 AttrOf(value) |= (A_COLOR & COLOR_PAIR((p > 255) ? 255 : p))
 250 #define SetPair(value,p)        (value).ext_color = (p)
 251 #define GetPair(value)          (value).ext_color
 252 #define unColor(n)              (AttrOf(n) & ALL_BUT_COLOR)
 253 #define GET_WINDOW_PAIR(w)      (w)->_color
 254 #define SET_WINDOW_PAIR(w,p)    (w)->_color = (p)
 255 #define SameAttrOf(a,b)         (AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b))
 256 #define VIDATTR(attr, pair)     vid_attr(attr, pair, 0)
 257 #else
 258 #define if_EXT_COLORS(stmt)     /* nothing */
 259 #define SetPair(value,p)        RemAttr(value, A_COLOR), \
 260                                 SetAttr(value, AttrOf(value) | (A_COLOR & COLOR_PAIR(p)))
 261 #define GetPair(value)          PAIR_NUMBER(AttrOf(value))
 262 #define unColor(n)              (AttrOf(n) & ALL_BUT_COLOR)
 263 #define GET_WINDOW_PAIR(w)      PAIR_NUMBER(WINDOW_ATTRS(w))
 264 #define SET_WINDOW_PAIR(w,p)    WINDOW_ATTRS(w) &= ALL_BUT_COLOR, \
 265                                 WINDOW_ATTRS(w) |= (A_COLOR & COLOR_PAIR(p))
 266 #define SameAttrOf(a,b)         (AttrOf(a) == AttrOf(b))
 267 #define VIDATTR(attr, pair)     vidattr(attr)
 268 #endif
 269
 270 #define WINDOW_ATTRS(w)         ((w)->_attrs)
 271
 272 #define SCREEN_ATTRS(s)         (*((s)->_current_attr))
 273 #define GET_SCREEN_PAIR(s)      GetPair(SCREEN_ATTRS(s))
 274 #define SET_SCREEN_PAIR(s,p)    SetPair(SCREEN_ATTRS(s), p)
 275
 276 /*
 277  * Definitions for color pairs
 278  */
 279 typedef unsigned colorpair_t;   /* type big enough to store PAIR_OF() */
 280 #define C_SHIFT 9               /* we need more bits than there are colors */
 281 #define C_MASK                  ((1 << C_SHIFT) - 1)
 282 #define PAIR_OF(fg, bg)         ((((fg) & C_MASK) << C_SHIFT) | ((bg) & C_MASK))
 283 #define isDefaultColor(c)       ((c) >= COLOR_DEFAULT || (c) < 0)
 284
 285 #define COLOR_DEFAULT           C_MASK
 286
 287 #if defined(USE_TERMLIB) && !defined(NEED_NCURSES_CH_T)
 288
 289 #undef NCURSES_CH_T             /* this is not a termlib feature */
 290 #define NCURSES_CH_T void       /* ...but we need a pointer in SCREEN */
 291
 292 #endif  /* USE_TERMLIB */
 293
 294 #ifndef USE_TERMLIB
 295 struct ldat
 296 {
 297         NCURSES_CH_T    *text;          /* text of the line */
 298         NCURSES_SIZE_T  firstchar;      /* first changed character in the line */
 299         NCURSES_SIZE_T  lastchar;       /* last changed character in the line */
 300         NCURSES_SIZE_T  oldindex;       /* index of the line at last update */
 301 };
 302 #endif  /* USE_TERMLIB */
 303
 304 typedef enum {
 305         M_XTERM = -1            /* use xterm's mouse tracking? */
 306         ,M_NONE = 0             /* no mouse device */
 307 #if USE_GPM_SUPPORT
 308         ,M_GPM                  /* use GPM */
 309 #endif
 310 #if USE_SYSMOUSE
 311         ,M_SYSMOUSE             /* FreeBSD sysmouse on console */
 312 #endif
 313 } MouseType;
 314
 315 /*
 316  * Structures for scrolling.
 317  */
 318
 319 typedef struct {
 320         unsigned long hashval;
 321         int oldcount, newcount;
 322         int oldindex, newindex;
 323 } HASHMAP;
 324
 325 /*
 326  * Structures for soft labels.
 327  */
 328
 329 struct _SLK;
 330
 331 #ifndef USE_TERMLIB
 332
 333 typedef struct
 334 {
 335         char *ent_text;         /* text for the label */
 336         char *form_text;        /* formatted text (left/center/...) */
 337         int ent_x;              /* x coordinate of this field */
 338         char dirty;             /* this label has changed */
 339         char visible;           /* field is visible */
 340 } slk_ent;
 341
 342 typedef struct _SLK {
 343         char dirty;             /* all labels have changed */
 344         char hidden;            /* soft labels are hidden */
 345         WINDOW *win;
 346         slk_ent *ent;
 347         short  maxlab;          /* number of available labels */
 348         short  labcnt;          /* number of allocated labels */
 349         short  maxlen;          /* length of labels */
 350         NCURSES_CH_T attr;      /* soft label attribute */
 351 } SLK;
 352
 353 #endif  /* USE_TERMLIB */
 354
 355 typedef struct {
 356         int     line;           /* lines to take, < 0 => from bottom*/
 357         int     (*hook)(WINDOW *, int); /* callback for user        */
 358         WINDOW *w;              /* maybe we need this for cleanup   */
 359 } ripoff_t;
 360
 361 #if USE_GPM_SUPPORT
 362 #undef buttons                  /* term.h defines this, and gpm uses it! */
 363 #include <gpm.h>
 364
 365 #ifdef HAVE_LIBDL
 366 /* link dynamically to GPM */
 367 typedef int *TYPE_gpm_fd;
 368 typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int);
 369 typedef int (*TYPE_Gpm_Close) (void);
 370 typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
 371
 372 #define my_gpm_fd       SP->_mouse_gpm_fd
 373 #define my_Gpm_Open     SP->_mouse_Gpm_Open
 374 #define my_Gpm_Close    SP->_mouse_Gpm_Close
 375 #define my_Gpm_GetEvent SP->_mouse_Gpm_GetEvent
 376 #else
 377 /* link statically to GPM */
 378 #define my_gpm_fd       &gpm_fd
 379 #define my_Gpm_Open     Gpm_Open
 380 #define my_Gpm_Close    Gpm_Close
 381 #define my_Gpm_GetEvent Gpm_GetEvent
 382 #endif /* HAVE_LIBDL */
 383 #endif /* USE_GPM_SUPPORT */
 384
 385 /*
 386  * The SCREEN structure.
 387  */
 388
 389 struct screen {
 390         int             _ifd;           /* input file ptr for screen        */
 391         FILE            *_ofp;          /* output file ptr for screen       */
 392         char            *_setbuf;       /* buffered I/O for output          */
 393         bool            _filtered;      /* filter() was called              */
 394         bool            _buffered;      /* setvbuf uses _setbuf data        */
 395         int             _checkfd;       /* filedesc for typeahead check     */
 396         //// TERMINAL   *_term;         /* terminal type information        */
 397         short           _lines;         /* screen lines                     */
 398         short           _columns;       /* screen columns                   */
 399
 400         short           _lines_avail;   /* lines available for stdscr       */
 401         short           _topstolen;     /* lines stolen from top            */
 402         ripoff_t        _rippedoff[5];  /* list of lines stolen             */
 403         int             _rip_count;     /* ...and total lines stolen        */
 404
 405         WINDOW          *_curscr;       /* current screen                   */
 406         WINDOW          *_newscr;       /* virtual screen to be updated to  */
 407         WINDOW          *_stdscr;       /* screen's full-window context     */
 408
 409         struct tries    *_keytry;       /* "Try" for use with keypad mode   */
 410         struct tries    *_key_ok;       /* Disabled keys via keyok(,FALSE)  */
 411         bool            _tried;         /* keypad mode was initialized      */
 412         bool            _keypad_on;     /* keypad mode is currently on      */
 413
 414         bool            _called_wgetch; /* check for recursion in wgetch()  */
 415         int             _fifo[FIFO_SIZE];       /* input push-back buffer   */
 416         short           _fifohead,      /* head of fifo queue               */
 417                         _fifotail,      /* tail of fifo queue               */
 418                         _fifopeek,      /* where to peek for next char      */
 419                         _fifohold;      /* set if breakout marked           */
 420
 421         int             _endwin;        /* are we out of window mode?       */
 422         NCURSES_CH_T    *_current_attr; /* holds current attributes set     */
 423         int             _coloron;       /* is color enabled?                */
 424         int             _color_defs;    /* are colors modified              */
 425         int             _cursor;        /* visibility of the cursor         */
 426         int             _cursrow;       /* physical cursor row              */
 427         int             _curscol;       /* physical cursor column           */
 428         bool            _notty;         /* true if we cannot switch non-tty */
 429         int             _nl;            /* True if NL -> CR/NL is on        */
 430         int             _raw;           /* True if in raw mode              */
 431         int             _cbreak;        /* 1 if in cbreak mode              */
 432                                         /* > 1 if in halfdelay mode         */
 433         int             _echo;          /* True if echo on                  */
 434         int             _use_meta;      /* use the meta key?                */
 435         struct _SLK     *_slk;          /* ptr to soft key struct / NULL    */
 436         int             slk_format;     /* selected format for this screen  */
 437         /* cursor movement costs; units are 10ths of milliseconds */
 438 #if NCURSES_NO_PADDING
 439         int             _no_padding;    /* flag to set if padding disabled  */
 440 #endif
 441         int             _char_padding;  /* cost of character put            */
 442         int             _cr_cost;       /* cost of (carriage_return)        */
 443         int             _cup_cost;      /* cost of (cursor_address)         */
 444         int             _home_cost;     /* cost of (cursor_home)            */
 445         int             _ll_cost;       /* cost of (cursor_to_ll)           */
 446 #if USE_HARD_TABS
 447         int             _ht_cost;       /* cost of (tab)                    */
 448         int             _cbt_cost;      /* cost of (backtab)                */
 449 #endif /* USE_HARD_TABS */
 450         int             _cub1_cost;     /* cost of (cursor_left)            */
 451         int             _cuf1_cost;     /* cost of (cursor_right)           */
 452         int             _cud1_cost;     /* cost of (cursor_down)            */
 453         int             _cuu1_cost;     /* cost of (cursor_up)              */
 454         int             _cub_cost;      /* cost of (parm_cursor_left)       */
 455         int             _cuf_cost;      /* cost of (parm_cursor_right)      */
 456         int             _cud_cost;      /* cost of (parm_cursor_down)       */
 457         int             _cuu_cost;      /* cost of (parm_cursor_up)         */
 458         int             _hpa_cost;      /* cost of (column_address)         */
 459         int             _vpa_cost;      /* cost of (row_address)            */
 460         /* used in tty_update.c, must be chars */
 461         int             _ed_cost;       /* cost of (clr_eos)                */
 462         int             _el_cost;       /* cost of (clr_eol)                */
 463         int             _el1_cost;      /* cost of (clr_bol)                */
 464         int             _dch1_cost;     /* cost of (delete_character)       */
 465         int             _ich1_cost;     /* cost of (insert_character)       */
 466         int             _dch_cost;      /* cost of (parm_dch)               */
 467         int             _ich_cost;      /* cost of (parm_ich)               */
 468         int             _ech_cost;      /* cost of (erase_chars)            */
 469         int             _rep_cost;      /* cost of (repeat_char)            */
 470         int             _hpa_ch_cost;   /* cost of (column_address)         */
 471         int             _cup_ch_cost;   /* cost of (cursor_address)         */
 472         int             _cuf_ch_cost;   /* cost of (parm_cursor_right)      */
 473         int             _inline_cost;   /* cost of inline-move              */
 474         int             _smir_cost;     /* cost of (enter_insert_mode)      */
 475         int             _rmir_cost;     /* cost of (exit_insert_mode)       */
 476         int             _ip_cost;       /* cost of (insert_padding)         */
 477         /* used in lib_mvcur.c */
 478         char *          _address_cursor;
 479         /* used in tty_update.c */
 480         int             _scrolling;     /* 1 if terminal's smart enough to  */
 481
 482         /* used in lib_color.c */
 483         color_t         *_color_table;  /* screen's color palette            */
 484         int             _color_count;   /* count of colors in palette        */
 485         colorpair_t     *_color_pairs;  /* screen's color pair list          */
 486         int             _pair_count;    /* count of color pairs              */
 487 #if NCURSES_EXT_FUNCS
 488         bool            _default_color; /* use default colors                */
 489         bool            _has_sgr_39_49; /* has ECMA default color support    */
 490         int             _default_fg;    /* assumed default foreground        */
 491         int             _default_bg;    /* assumed default background        */
 492 #endif
 493         chtype          _ok_attributes; /* valid attributes for terminal     */
 494         chtype          _xmc_suppress;  /* attributes to suppress if xmc     */
 495         chtype          _xmc_triggers;  /* attributes to process if xmc      */
 496         chtype *        _acs_map;       /* the real alternate-charset map    */
 497         bool *          _screen_acs_map;
 498
 499         /* used in lib_vidattr.c */
 500         bool            _use_rmso;      /* true if we may use 'rmso'         */
 501         bool            _use_rmul;      /* true if we may use 'rmul'         */
 502
 503         /*
 504          * These data correspond to the state of the idcok() and idlok()
 505          * functions.  A caveat is in order here:  the XSI and SVr4
 506          * documentation specify that these functions apply to the window which
 507          * is given as an argument.  However, ncurses implements this logic
 508          * only for the newscr/curscr update process, _not_ per-window.
 509          */
 510         bool            _nc_sp_idlok;
 511         bool            _nc_sp_idcok;
 512 #define _nc_idlok SP->_nc_sp_idlok
 513 #define _nc_idcok SP->_nc_sp_idcok
 514
 515 #ifdef NCURSES_MOUSE_VERSION
 516         /*
 517          * These are the data that support the mouse interface.
 518          */
 519         bool            _mouse_initialized;
 520         MouseType       _mouse_type;
 521         int             _maxclick;
 522         bool            (*_mouse_event) (SCREEN *);
 523         bool            (*_mouse_inline)(SCREEN *);
 524         bool            (*_mouse_parse) (int);
 525         void            (*_mouse_resume)(SCREEN *);
 526         void            (*_mouse_wrap)  (SCREEN *);
 527         int             _mouse_fd;      /* file-descriptor, if any */
 528         bool            _mouse_active;  /* true if initialized */
 529         mmask_t         _mouse_mask;
 530         NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */
 531         MEVENT          _mouse_events[EV_MAX];  /* hold the last mouse event seen */
 532         MEVENT          *_mouse_eventp; /* next free slot in event queue */
 533 #endif
 534
 535 #if USE_GPM_SUPPORT
 536         bool            _mouse_gpm_loaded;
 537         bool            _mouse_gpm_found;
 538 #ifdef HAVE_LIBDL
 539         TYPE_gpm_fd     _mouse_gpm_fd;
 540         TYPE_Gpm_Open   _mouse_Gpm_Open;
 541         TYPE_Gpm_Close  _mouse_Gpm_Close;
 542         TYPE_Gpm_GetEvent _mouse_Gpm_GetEvent;
 543 #endif
 544         Gpm_Connect     _mouse_gpm_connect;
 545 #endif /* USE_GPM_SUPPORT */
 546
 547 #if USE_EMX_MOUSE
 548         int             _emxmouse_wfd;
 549         int             _emxmouse_thread;
 550         int             _emxmouse_activated;
 551         char            _emxmouse_buttons[4];
 552 #endif
 553
 554 #if USE_SYSMOUSE
 555         MEVENT          _sysmouse_fifo[FIFO_SIZE];
 556         int             _sysmouse_head;
 557         int             _sysmouse_tail;
 558         int             _sysmouse_char_width;   /* character width */
 559         int             _sysmouse_char_height;  /* character height */
 560         int             _sysmouse_old_buttons;
 561         int             _sysmouse_new_buttons;
 562 #endif
 563
 564         /*
 565          * This supports automatic resizing
 566          */
 567 #if USE_SIZECHANGE
 568         int             (*_resize)(int,int);
 569 #endif
 570
 571         /*
 572          * These are data that support the proper handling of the panel stack on an
 573          * per screen basis.
 574          */
 575         //// struct panelhook _panelHook;
 576         /*
 577          * Linked-list of all windows, to support '_nc_resizeall()' and
 578          * '_nc_freeall()'
 579          */
 580         WINDOWLIST      *_nc_sp_windows;
 581 #define _nc_windows SP->_nc_sp_windows
 582
 583         bool            _sig_winch;
 584         SCREEN          *_next_screen;
 585
 586         /* hashes for old and new lines */
 587         unsigned long   *oldhash, *newhash;
 588         HASHMAP         *hashtab;
 589         int             hashtab_len;
 590
 591         bool            _cleanup;       /* cleanup after int/quit signal */
 592         int             (*_outch)(int); /* output handler if not putc */
 593
 594         int             _legacy_coding; /* see use_legacy_coding() */
 595
 596         /*
 597          * ncurses/ncursesw are the same up to this point.
 598          */
 599 #if USE_WIDEC_SUPPORT
 600         /* recent versions of 'screen' have partially-working support for
 601          * UTF-8, but do not permit ACS at the same time (see tty_update.c).
 602          */
 603         bool            _screen_acs_fix;
 604 #endif
 605 };
 606
 607 extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain;
 608
 609         WINDOWLIST {
 610         WINDOW  win;    /* first, so WINDOW_EXT() works */
 611         WINDOWLIST *next;
 612 #ifdef _XOPEN_SOURCE_EXTENDED
 613         char addch_work[(MB_LEN_MAX * 9) + 1];
 614         unsigned addch_used;    /* number of bytes in addch_work[] */
 615         int addch_x;            /* x-position for addch_work[] */
 616         int addch_y;            /* y-position for addch_work[] */
 617 #endif
 618 };
 619
 620 #define WINDOW_EXT(win,field) (((WINDOWLIST *)(win))->field)
 621
 622 /* usually in <limits.h> */
 623 #ifndef UCHAR_MAX
 624 #define UCHAR_MAX 255
 625 #endif
 626
 627 /* The terminfo source is assumed to be 7-bit ASCII */
 628 #define is7bits(c)      ((unsigned)(c) < 128)
 629
 630 /* Checks for isprint() should be done on 8-bit characters (non-wide) */
 631 #define is8bits(c)      ((unsigned)(c) <= UCHAR_MAX)
 632
 633 #ifndef min
 634 #define min(a,b)        ((a) > (b)  ?  (b)  :  (a))
 635 #endif
 636
 637 #ifndef max
 638 #define max(a,b)        ((a) < (b)  ?  (b)  :  (a))
 639 #endif
 640
 641 /* usually in <unistd.h> */
 642 #ifndef STDIN_FILENO
 643 #define STDIN_FILENO 0
 644 #endif
 645
 646 #ifndef STDOUT_FILENO
 647 #define STDOUT_FILENO 1
 648 #endif
 649
 650 #ifndef STDERR_FILENO
 651 #define STDERR_FILENO 2
 652 #endif
 653
 654 #ifndef EXIT_SUCCESS
 655 #define EXIT_SUCCESS 0
 656 #endif
 657
 658 #ifndef EXIT_FAILURE
 659 #define EXIT_FAILURE 1
 660 #endif
 661
 662 #ifndef R_OK
 663 #define R_OK    4               /* Test for read permission.  */
 664 #endif
 665 #ifndef W_OK
 666 #define W_OK    2               /* Test for write permission.  */
 667 #endif
 668 #ifndef X_OK
 669 #define X_OK    1               /* Test for execute permission.  */
 670 #endif
 671 #ifndef F_OK
 672 #define F_OK    0               /* Test for existence.  */
 673 #endif
 674
 675 #if HAVE_FCNTL_H
 676 //// #include <fcntl.h>         /* may define O_BINARY  */
 677 #endif
 678
 679 #ifndef O_BINARY
 680 #define O_BINARY 0
 681 #endif
 682
 683 #ifdef TRACE
 684 #define TRACE_OUTCHARS(n) _nc_outchars += (n);
 685 #else
 686 #define TRACE_OUTCHARS(n) /* nothing */
 687 #endif
 688
 689 #define UChar(c)        ((unsigned char)(c))
 690 #define ChCharOf(c)     ((c) & (chtype)A_CHARTEXT)
 691 #define ChAttrOf(c)     ((c) & (chtype)A_ATTRIBUTES)
 692
 693 #ifndef MB_LEN_MAX
 694 #define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */
 695 #endif
 696
 697 #if USE_WIDEC_SUPPORT /* { */
 698 #define isEILSEQ(status) ((status == (size_t)-1) && (errno == EILSEQ))
 699
 700 #define init_mb(state)  memset(&state, 0, sizeof(state))
 701
 702 #if NCURSES_EXT_COLORS
 703 #define NulColor        , 0
 704 #else
 705 #define NulColor        /* nothing */
 706 #endif
 707
 708 #define NulChar         0,0,0,0 /* FIXME: see CCHARW_MAX */
 709 #define CharOf(c)       ((c).chars[0])
 710 #define AttrOf(c)       ((c).attr)
 711 #define AddAttr(c,a)    AttrOf(c) |= ((a) & A_ATTRIBUTES)
 712 #define RemAttr(c,a)    AttrOf(c) &= ~((a) & A_ATTRIBUTES)
 713 #define SetAttr(c,a)    AttrOf(c) = ((a) & A_ATTRIBUTES)
 714 #define NewChar2(c,a)   { a, { c, NulChar } NulColor }
 715 #define NewChar(ch)     NewChar2(ChCharOf(ch), ChAttrOf(ch))
 716 #define CharEq(a,b)     (!memcmp(&(a), &(b), sizeof(a)))
 717 #define SetChar(ch,c,a) do {                                                        \
 718                             NCURSES_CH_T *_cp = &ch;                                \
 719                             memset(_cp, 0, sizeof(ch));                             \
 720                             _cp->chars[0] = (c);                                            \
 721                             _cp->attr = (a);                                        \
 722                             if_EXT_COLORS(SetPair(ch, PAIR_NUMBER(a)));             \
 723                         } while (0)
 724 #define CHREF(wch)      (&wch)
 725 #define CHDEREF(wch)    (*wch)
 726 #define ARG_CH_T        NCURSES_CH_T *
 727 #define CARG_CH_T       const NCURSES_CH_T *
 728 #define PUTC_DATA       char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \
 729                         mbstate_t PUT_st; wchar_t PUTC_ch
 730 #define PUTC_INIT       init_mb (PUT_st)
 731 #define PUTC(ch,b)      do { if(!isWidecExt(ch)) {                                  \
 732                         if (Charable(ch)) {                                         \
 733                             fputc(CharOf(ch), b);                                   \
 734                             TRACE_OUTCHARS(1);                                      \
 735                         } else {                                                    \
 736                             PUTC_INIT;                                              \
 737                             for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {       \
 738                                 PUTC_ch = (ch).chars[PUTC_i];                       \
 739                                 if (PUTC_ch == L'\0')                               \
 740                                     break;                                          \
 741                                 PUTC_n = wcrtomb(PUTC_buf,                          \
 742                                                  (ch).chars[PUTC_i], &PUT_st);      \
 743                                 if (PUTC_n <= 0) {                                  \
 744                                     if (PUTC_ch && is8bits(PUTC_ch) && PUTC_i == 0) \
 745                                         putc(PUTC_ch,b);                            \
 746                                     break;                                          \
 747                                 }                                                   \
 748                                 fwrite(PUTC_buf, (unsigned) PUTC_n, 1, b);          \
 749                             }                                                       \
 750                             TRACE_OUTCHARS(PUTC_i);                                 \
 751                         } } } while (0)
 752
 753 #define BLANK           { WA_NORMAL, {' '} NulColor }
 754 #define ZEROS           { WA_NORMAL, {'\0'} NulColor }
 755 #define ISBLANK(ch)     ((ch).chars[0] == L' ' && (ch).chars[1] == L'\0')
 756
 757         /*
 758          * Wide characters cannot be represented in the A_CHARTEXT mask of
 759          * attr_t's but an application might have set a narrow character there.
 760          * But even in that case, it would only be a printable character, or
 761          * zero.  Otherwise we can use those bits to tell if a cell is the
 762          * first or extension part of a wide character.
 763          */
 764 #define WidecExt(ch)    (AttrOf(ch) & A_CHARTEXT)
 765 #define isWidecBase(ch) (WidecExt(ch) == 1)
 766 #define isWidecExt(ch)  (WidecExt(ch) > 1 && WidecExt(ch) < 32)
 767 #define SetWidecExt(dst, ext)   AttrOf(dst) &= ~A_CHARTEXT,             \
 768                                 AttrOf(dst) |= (ext + 1)
 769
 770 #define if_WIDEC(code)  code
 771 #define Charable(ch)    ((SP != 0 && SP->_legacy_coding)                \
 772                          || (AttrOf(ch) & A_ALTCHARSET)                 \
 773                          || (!isWidecExt(ch) &&                         \
 774                              (ch).chars[1] == L'\0' &&                  \
 775                              _nc_is_charable(CharOf(ch))))
 776
 777 #define L(ch)           L ## ch
 778 #else /* }{ */
 779 #define CharOf(c)       ChCharOf(c)
 780 #define AttrOf(c)       ChAttrOf(c)
 781 #define AddAttr(c,a)    c |= (a)
 782 #define RemAttr(c,a)    c &= ~((a) & A_ATTRIBUTES)
 783 #define SetAttr(c,a)    c = ((c) & ~A_ATTRIBUTES) | (a)
 784 #define NewChar(ch)     (ch)
 785 #define NewChar2(c,a)   ((c) | (a))
 786 #define CharEq(a,b)     ((a) == (b))
 787 #define SetChar(ch,c,a) ch = (c) | (a)
 788 #define CHREF(wch)      wch
 789 #define CHDEREF(wch)    wch
 790 #define ARG_CH_T        NCURSES_CH_T
 791 #define CARG_CH_T       NCURSES_CH_T
 792 #define PUTC_DATA       int data = 0
 793 #define PUTC(ch,b)      do { data = CharOf(ch); putc(data,b); } while (0)
 794
 795 #define BLANK           (' '|A_NORMAL)
 796 #define ZEROS           ('\0'|A_NORMAL)
 797 #define ISBLANK(ch)     (CharOf(ch) == ' ')
 798
 799 #define isWidecExt(ch)  (0)
 800 #define if_WIDEC(code) /* nothing */
 801
 802 #define L(ch)           ch
 803 #endif /* } */
 804
 805 #define AttrOfD(ch)     AttrOf(CHDEREF(ch))
 806 #define CharOfD(ch)     CharOf(CHDEREF(ch))
 807 #define SetChar2(wch,ch)    SetChar(wch,ChCharOf(ch),ChAttrOf(ch))
 808
 809 #define BLANK_ATTR      A_NORMAL
 810 #define BLANK_TEXT      L(' ')
 811
 812 #define CHANGED     -1
 813
 814 #define LEGALYX(w, y, x) \
 815               ((w) != 0 && \
 816                 ((x) >= 0 && (x) <= (w)->_maxx && \
 817                  (y) >= 0 && (y) <= (w)->_maxy))
 818
 819 #define CHANGED_CELL(line,col) \
 820         if (line->firstchar == _NOCHANGE) \
 821                 line->firstchar = line->lastchar = col; \
 822         else if ((col) < line->firstchar) \
 823                 line->firstchar = col; \
 824         else if ((col) > line->lastchar) \
 825                 line->lastchar = col
 826
 827 #define CHANGED_RANGE(line,start,end) \
 828         if (line->firstchar == _NOCHANGE \
 829          || line->firstchar > (start)) \
 830                 line->firstchar = start; \
 831         if (line->lastchar == _NOCHANGE \
 832          || line->lastchar < (end)) \
 833                 line->lastchar = end
 834
 835 #define CHANGED_TO_EOL(line,start,end) \
 836         if (line->firstchar == _NOCHANGE \
 837          || line->firstchar > (start)) \
 838                 line->firstchar = start; \
 839         line->lastchar = end
 840
 841 #define SIZEOF(v) (sizeof(v)/sizeof(v[0]))
 842
 843 #define FreeIfNeeded(p)  if ((p) != 0) free(p)
 844
 845 /* FreeAndNull() is not a comma-separated expression because some compilers
 846  * do not accept a mixture of void with values.
 847  */
 848 #define FreeAndNull(p)   free(p); p = 0
 849
 850 //// #include <nc_alloc.h>
 851
 852 /*
 853  * TTY bit definition for converting tabs to spaces.
 854  */
 855 #ifdef TAB3
 856 # define OFLAGS_TABS TAB3       /* POSIX specifies TAB3 */
 857 #else
 858 # ifdef XTABS
 859 #  define OFLAGS_TABS XTABS     /* XTABS is usually the "same" */
 860 # else
 861 #  ifdef OXTABS
 862 #   define OFLAGS_TABS OXTABS   /* the traditional BSD equivalent */
 863 #  else
 864 #   define OFLAGS_TABS 0
 865 #  endif
 866 # endif
 867 #endif
 868
 869 /*
 870  * Prefixes for call/return points of library function traces.  We use these to
 871  * instrument the public functions so that the traces can be easily transformed
 872  * into regression scripts.
 873  */
 874 #define T_CALLED(fmt) "called {" fmt
 875 #define T_CREATE(fmt) "create :" fmt
 876 #define T_RETURN(fmt) "return }" fmt
 877
 878 #ifdef TRACE
 879
 880 #define START_TRACE() \
 881         if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \
 882             int t = _nc_getenv_num("NCURSES_TRACE"); \
 883             if (t >= 0) \
 884                 trace((unsigned) t); \
 885         }
 886
 887 #define TR(n, a)        if (_nc_tracing & (n)) _tracef a
 888 #define T(a)            TR(TRACE_CALLS, a)
 889 #define TPUTS_TRACE(s)  _nc_tputs_trace = s;
 890 #define TRACE_RETURN(value,type) return _nc_retrace_##type(value)
 891
 892 #define returnAttr(code)        TRACE_RETURN(code,attr_t)
 893 #define returnBits(code)        TRACE_RETURN(code,unsigned)
 894 #define returnBool(code)        TRACE_RETURN(code,bool)
 895 #define returnCPtr(code)        TRACE_RETURN(code,cptr)
 896 #define returnCVoidPtr(code)    TRACE_RETURN(code,cvoid_ptr)
 897 #define returnChar(code)        TRACE_RETURN(code,chtype)
 898 #define returnCode(code)        TRACE_RETURN(code,int)
 899 #define returnPtr(code)         TRACE_RETURN(code,ptr)
 900 #define returnSP(code)          TRACE_RETURN(code,sp)
 901 #define returnVoid              T((T_RETURN(""))); return
 902 #define returnVoidPtr(code)     TRACE_RETURN(code,void_ptr)
 903 #define returnWin(code)         TRACE_RETURN(code,win)
 904
 905 extern NCURSES_EXPORT(NCURSES_BOOL)     _nc_retrace_bool (NCURSES_BOOL);
 906 extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *);
 907 extern NCURSES_EXPORT(SCREEN *)         _nc_retrace_sp (SCREEN *);
 908 extern NCURSES_EXPORT(WINDOW *)         _nc_retrace_win (WINDOW *);
 909 extern NCURSES_EXPORT(attr_t)           _nc_retrace_attr_t (attr_t);
 910 extern NCURSES_EXPORT(char *)           _nc_retrace_ptr (char *);
 911 extern NCURSES_EXPORT(char *)           _nc_trace_ttymode(TTY *tty);
 912 extern NCURSES_EXPORT(char *)           _nc_varargs (const char *, va_list);
 913 extern NCURSES_EXPORT(chtype)           _nc_retrace_chtype (chtype);
 914 extern NCURSES_EXPORT(const char *)     _nc_altcharset_name(attr_t, chtype);
 915 extern NCURSES_EXPORT(const char *)     _nc_retrace_cptr (const char *);
 916 extern NCURSES_EXPORT(int)              _nc_retrace_int (int);
 917 extern NCURSES_EXPORT(unsigned)         _nc_retrace_unsigned (unsigned);
 918 extern NCURSES_EXPORT(void *)           _nc_retrace_void_ptr (void *);
 919 extern NCURSES_EXPORT(void)             _nc_fifo_dump (void);
 920 extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace;
 921 extern NCURSES_EXPORT_VAR(long)         _nc_outchars;
 922 extern NCURSES_EXPORT_VAR(unsigned)     _nc_tracing;
 923
 924 #if USE_WIDEC_SUPPORT
 925 extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *);
 926 extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int);
 927 #endif
 928
 929 extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int);
 930 extern NCURSES_EXPORT(const char *) _nc_viscbuf (const NCURSES_CH_T *, int);
 931
 932 #else /* !TRACE */
 933
 934 #define START_TRACE() /* nothing */
 935
 936 #define T(a)
 937 #define TR(n, a)
 938 #define TPUTS_TRACE(s)
 939
 940 #define returnAttr(code)        return code
 941 #define returnBits(code)        return code
 942 #define returnBool(code)        return code
 943 #define returnCPtr(code)        return code
 944 #define returnCVoidPtr(code)    return code
 945 #define returnChar(code)        return code
 946 #define returnCode(code)        return code
 947 #define returnPtr(code)         return code
 948 #define returnSP(code)          return code
 949 #define returnVoid              return
 950 #define returnVoidPtr(code)     return code
 951 #define returnWin(code)         return code
 952
 953 #endif /* TRACE/!TRACE */
 954
 955 /*
 956  * Return-codes for tgetent() and friends.
 957  */
 958 #define TGETENT_YES  1          /* entry is found */
 959 #define TGETENT_NO   0          /* entry is not found */
 960 #define TGETENT_ERR -1          /* an error occurred */
 961
 962 extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
 963 extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int);
 964
 965 #define empty_module(name) \
 966 extern  NCURSES_EXPORT(void) name (void); \
 967         NCURSES_EXPORT(void) name (void) { }
 968
 969 #define ALL_BUT_COLOR ((chtype)~(A_COLOR))
 970 #define NONBLANK_ATTR (A_NORMAL|A_BOLD|A_DIM|A_BLINK)
 971 #define XMC_CHANGES(c) ((c) & SP->_xmc_suppress)
 972
 973 #define toggle_attr_on(S,at) {\
 974    if (PAIR_NUMBER(at) > 0) {\
 975       (S) = ((S) & ALL_BUT_COLOR) | (at);\
 976    } else {\
 977       (S) |= (at);\
 978    }\
 979    TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
 980
 981 #define toggle_attr_off(S,at) {\
 982    if (PAIR_NUMBER(at) > 0) {\
 983       (S) &= ~(at|A_COLOR);\
 984    } else {\
 985       (S) &= ~(at);\
 986    }\
 987    TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
 988
 989 #define DelCharCost(count) \
 990                 ((parm_dch != 0) \
 991                 ? SP->_dch_cost \
 992                 : ((delete_character != 0) \
 993                         ? (SP->_dch1_cost * count) \
 994                         : INFINITY))
 995
 996 #define InsCharCost(count) \
 997                 ((parm_ich != 0) \
 998                 ? SP->_ich_cost \
 999                 : ((enter_insert_mode && exit_insert_mode) \
1000                   ? SP->_smir_cost + SP->_rmir_cost + (SP->_ip_cost * count) \
1001                   : ((insert_character != 0) \
1002                     ? ((SP->_ich1_cost + SP->_ip_cost) * count) \
1003                     : INFINITY)))
1004
1005 #if USE_XMC_SUPPORT
1006 #define UpdateAttrs(c)  if (!SameAttrOf(SCREEN_ATTRS(SP), c)) { \
1007                                 attr_t chg = AttrOf(SCREEN_ATTRS(SP)); \
1008                                 VIDATTR(AttrOf(c), GetPair(c)); \
1009                                 if (magic_cookie_glitch > 0 \
1010                                  && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(SP))))) { \
1011                                         T(("%s @%d before glitch %d,%d", \
1012                                                 __FILE__, __LINE__, \
1013                                                 SP->_cursrow, \
1014                                                 SP->_curscol)); \
1015                                         _nc_do_xmc_glitch(chg); \
1016                                 } \
1017                         }
1018 #else
1019 #define UpdateAttrs(c)  if (!SameAttrOf(SCREEN_ATTRS(SP), c)) \
1020                                 VIDATTR(AttrOf(c), GetPair(c));
1021 #endif
1022
1023 /*
1024  * Macros to make additional parameter to implement wgetch_events()
1025  */
1026 #ifdef NCURSES_WGETCH_EVENTS
1027 #define EVENTLIST_0th(param) param
1028 #define EVENTLIST_1st(param) param
1029 #define EVENTLIST_2nd(param) , param
1030 #else
1031 #define EVENTLIST_0th(param) void
1032 #define EVENTLIST_1st(param) /* nothing */
1033 #define EVENTLIST_2nd(param) /* nothing */
1034 #endif
1035
1036 #if NCURSES_EXPANDED && NCURSES_EXT_FUNCS
1037
1038 #undef  toggle_attr_on
1039 #define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at)
1040 extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t);
1041
1042 #undef  toggle_attr_off
1043 #define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at)
1044 extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t);
1045
1046 #undef  DelCharCost
1047 #define DelCharCost(count) _nc_DelCharCost(count)
1048 extern NCURSES_EXPORT(int) _nc_DelCharCost (int);
1049
1050 #undef  InsCharCost
1051 #define InsCharCost(count) _nc_InsCharCost(count)
1052 extern NCURSES_EXPORT(int) _nc_InsCharCost (int);
1053
1054 #undef  UpdateAttrs
1055 #define UpdateAttrs(c) _nc_UpdateAttrs(c)
1056 extern NCURSES_EXPORT(void) _nc_UpdateAttrs (NCURSES_CH_T);
1057
1058 #else
1059
1060 extern NCURSES_EXPORT(void) _nc_expanded (void);
1061
1062 #endif
1063
1064 #if !HAVE_GETCWD
1065 #define getcwd(buf,len) getwd(buf)
1066 #endif
1067
1068 /* charable.c */
1069 #if USE_WIDEC_SUPPORT
1070 extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t);
1071 extern NCURSES_EXPORT(int) _nc_to_char(wint_t);
1072 extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int);
1073 #endif
1074
1075 /* doupdate.c */
1076 #if USE_XMC_SUPPORT
1077 extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t);
1078 #endif
1079
1080 /* hardscroll.c */
1081 #if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
1082 extern NCURSES_EXPORT(void) _nc_linedump (void);
1083 #endif
1084
1085 /* lib_acs.c */
1086 extern NCURSES_EXPORT(void) _nc_init_acs (void);        /* corresponds to traditional 'init_acs()' */
1087 extern NCURSES_EXPORT(int) _nc_msec_cost (const char *const, int);  /* used by 'tack' program */
1088
1089 /* lib_addch.c */
1090 #if USE_WIDEC_SUPPORT
1091 NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch);
1092 #endif
1093
1094 /* lib_addstr.c */
1095 #if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB)
1096 extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *);
1097 #endif
1098
1099 /* lib_color.c */
1100 extern NCURSES_EXPORT(bool) _nc_reset_colors(void);
1101
1102 /* lib_getch.c */
1103 extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, unsigned long *, int EVENTLIST_2nd(_nc_eventlist *));
1104
1105 /* lib_insch.c */
1106 extern NCURSES_EXPORT(int) _nc_insert_ch(WINDOW *, chtype);
1107
1108 /* lib_mvcur.c */
1109 #define INFINITY        1000000 /* cost: too high to use */
1110
1111 extern NCURSES_EXPORT(void) _nc_mvcur_init (void);
1112 extern NCURSES_EXPORT(void) _nc_mvcur_resume (void);
1113 extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void);
1114
1115 extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int);
1116
1117 extern NCURSES_EXPORT(void) _nc_screen_init (void);
1118 extern NCURSES_EXPORT(void) _nc_screen_resume (void);
1119 extern NCURSES_EXPORT(void) _nc_screen_wrap (void);
1120
1121 /* lib_mouse.c */
1122 extern NCURSES_EXPORT(int) _nc_has_mouse (void);
1123
1124 /* lib_mvcur.c */
1125 #define INFINITY        1000000 /* cost: too high to use */
1126 #define BAUDBYTE        9       /* 9 = 7 bits + 1 parity + 1 stop */
1127
1128 /* lib_setup.c */
1129 extern NCURSES_EXPORT(char *) _nc_get_locale(void);
1130 extern NCURSES_EXPORT(int) _nc_unicode_locale(void);
1131 extern NCURSES_EXPORT(int) _nc_locale_breaks_acs(void);
1132 extern NCURSES_EXPORT(int) _nc_setupterm(NCURSES_CONST char *, int, int *, bool);
1133
1134 /* lib_tstp.c */
1135 #if USE_SIGWINCH
1136 extern NCURSES_EXPORT(int) _nc_handle_sigwinch(int);
1137 #else
1138 #define _nc_handle_sigwinch(a) /* nothing */
1139 #endif
1140
1141 /* lib_wacs.c */
1142 #if USE_WIDEC_SUPPORT
1143 extern NCURSES_EXPORT(void) _nc_init_wacs(void);
1144 #endif
1145
1146 typedef struct {
1147     char *s_head;       /* beginning of the string (may be null) */
1148     char *s_tail;       /* end of the string (may be null) */
1149     size_t s_size;      /* current remaining size available */
1150     size_t s_init;      /* total size available */
1151 } string_desc;
1152
1153 /* strings.c */
1154 extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t);
1155 extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t);
1156 extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, string_desc *);
1157 extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *);
1158 extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *);
1159
1160 #if !HAVE_STRSTR
1161 #define strstr _nc_strstr
1162 extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *);
1163 #endif
1164
1165 /* safe_sprintf.c */
1166 extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list);
1167
1168 /* tries.c */
1169 extern NCURSES_EXPORT(void) _nc_add_to_try (struct tries **, const char *, unsigned);
1170 extern NCURSES_EXPORT(char *) _nc_expand_try (struct tries *, unsigned, int *, size_t);
1171 extern NCURSES_EXPORT(int) _nc_remove_key (struct tries **, unsigned);
1172 extern NCURSES_EXPORT(int) _nc_remove_string (struct tries **, const char *);
1173
1174 /* elsewhere ... */
1175 //// extern NCURSES_EXPORT(ENTRY *) _nc_delink_entry(ENTRY *, TERMTYPE *);
1176 extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int);
1177 extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t);
1178 extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *);
1179 extern NCURSES_EXPORT(int) _nc_access (const char *, int);
1180 extern NCURSES_EXPORT(int) _nc_baudrate (int);
1181 extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *);
1182 extern NCURSES_EXPORT(int) _nc_getenv_num (const char *);
1183 extern NCURSES_EXPORT(int) _nc_keypad (bool);
1184 extern NCURSES_EXPORT(int) _nc_ospeed (int);
1185 extern NCURSES_EXPORT(int) _nc_outch (int);
1186 //// extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE *const);
1187 extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, bool, int);
1188 extern NCURSES_EXPORT(int) _nc_timed_wait(int, int, int * EVENTLIST_2nd(_nc_eventlist *));
1189 extern NCURSES_EXPORT(void) _nc_do_color (short, short, bool, int (*)(int));
1190 extern NCURSES_EXPORT(void) _nc_flush (void);
1191 //// extern NCURSES_EXPORT(void) _nc_free_entry(ENTRY *, TERMTYPE *);
1192 extern NCURSES_EXPORT(void) _nc_freeall (void);
1193 extern NCURSES_EXPORT(void) _nc_hash_map (void);
1194 extern NCURSES_EXPORT(void) _nc_init_keytry (void);
1195 extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *);
1196 extern NCURSES_EXPORT(void) _nc_make_oldhash (int i);
1197 extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot);
1198 extern NCURSES_EXPORT(void) _nc_scroll_optimize (void);
1199 extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, bool);
1200 extern NCURSES_EXPORT(void) _nc_signal_handler (bool);
1201 extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *);
1202 extern NCURSES_EXPORT(void) _nc_trace_tries (struct tries *);
1203
1204 #if NO_LEAKS
1205 extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void);
1206 extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void);
1207 extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void);
1208 extern NCURSES_EXPORT(void) _nc_keyname_leaks(void);
1209 extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void);
1210 #endif
1211
1212 #ifndef USE_TERMLIB
1213 extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T);
1214 extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T);
1215 extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, NCURSES_SIZE_T const, NCURSES_SIZE_T const, NCURSES_CH_T);
1216 #endif
1217
1218 #if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB)
1219 #ifdef linux
1220 extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *);
1221 #else
1222 #define _nc_wcrtomb(s,wc,ps) wcrtomb(s,wc,ps)
1223 #endif
1224 #endif
1225
1226 #if USE_SIZECHANGE
1227 extern NCURSES_EXPORT(void) _nc_update_screensize (void);
1228 #endif
1229
1230 #if HAVE_RESIZETERM
1231 extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *);
1232 #else
1233 #define _nc_resize_margins(wp) /* nothing */
1234 #endif
1235
1236 #ifdef NCURSES_WGETCH_EVENTS
1237 extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *);
1238 #else
1239 #define wgetch_events(win, evl) wgetch(win)
1240 #define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen)
1241 #endif
1242
1243 /*
1244  * Not everyone has vsscanf(), but we'd like to use it for scanw().
1245  */
1246 #if !HAVE_VSSCANF
1247 extern int vsscanf(const char *str, const char *format, va_list __arg);
1248 #endif
1249
1250 /* scroll indices */
1251 extern NCURSES_EXPORT_VAR(int *) _nc_oldnums;
1252
1253 #define USE_SETBUF_0 0
1254
1255 #define NC_BUFFERED(flag) _nc_set_buffer(SP->_ofp, flag)
1256
1257 #define NC_OUTPUT ((SP != 0) ? SP->_ofp : stdout)
1258
1259 /*
1260  * On systems with a broken linker, define 'SP' as a function to force the
1261  * linker to pull in the data-only module with 'SP'.
1262  */
1263 #if BROKEN_LINKER
1264 #define SP _nc_screen()
1265 extern NCURSES_EXPORT(SCREEN *) _nc_screen (void);
1266 extern NCURSES_EXPORT(int) _nc_alloc_screen (void);
1267 extern NCURSES_EXPORT(void) _nc_set_screen (SCREEN *);
1268 #else
1269 /* current screen is private data; avoid possible linking conflicts too */
1270 extern NCURSES_EXPORT_VAR(SCREEN *) SP;
1271 #define _nc_alloc_screen() ((SP = typeCalloc(SCREEN, 1)) != 0)
1272 #define _nc_set_screen(sp) SP = sp
1273 #endif
1274
1275 /*
1276  * We don't want to use the lines or columns capabilities internally, because
1277  * if the application is running multiple screens under X, it's quite possible
1278  * they could all have type xterm but have different sizes!  So...
1279  */
1280 #define screen_lines    SP->_lines
1281 #define screen_columns  SP->_columns
1282
1283 extern NCURSES_EXPORT_VAR(int) _nc_slk_format;  /* != 0 if slk_init() called */
1284 extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int);
1285
1286 /*
1287  * Some constants related to SLK's
1288  */
1289 #define MAX_SKEY_OLD       8    /* count of soft keys */
1290 #define MAX_SKEY_LEN_OLD   8    /* max length of soft key text */
1291 #define MAX_SKEY_PC       12    /* This is what most PC's have */
1292 #define MAX_SKEY_LEN_PC    5
1293
1294 /* Macro to check whether or not we use a standard format */
1295 #define SLK_STDFMT(fmt) (fmt < 3)
1296 /* Macro to determine height of label window */
1297 #define SLK_LINES(fmt)  (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2))
1298
1299 #define MAX_SKEY(fmt)     (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC)
1300 #define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC)
1301
1302 extern NCURSES_EXPORT(int) _nc_ripoffline (int line, int (*init)(WINDOW *,int));
1303
1304 /*
1305  * Common error messages
1306  */
1307 #define MSG_NO_MEMORY "Out of memory"
1308 #define MSG_NO_INPUTS "Premature EOF"
1309
1310 #ifdef __cplusplus
1311 }
1312 #endif
1313
1314 #endif /* CURSES_PRIV_H */