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 52extern "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 97extern 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() 166extern 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) 177extern 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 206typedef 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 230typedef 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} 236color_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) 292extern 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 305NCURSES_EXPORT(int *) _nc_ptr_Lines (void); 306NCURSES_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> 333extern NCURSES_EXPORT(void) _nc_init_pthreads(void); 334extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *); 335extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *); 336extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *); 337extern 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 361weak_symbol(pthread_sigmask); 362weak_symbol(pthread_self); 363weak_symbol(pthread_equal); 364weak_symbol(pthread_mutex_init); 365weak_symbol(pthread_mutex_lock); 366weak_symbol(pthread_mutex_unlock); 367weak_symbol(pthread_mutex_trylock); 368weak_symbol(pthread_mutexattr_settype); 369weak_symbol(pthread_mutexattr_init); 370extern 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 */ 403typedef 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 419struct 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 428typedef 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 443typedef struct { 444 unsigned long hashval; 445 int oldcount, newcount; 446 int oldindex, newindex; 447} HASHMAP; 448 449/* 450 * Structures for soft labels. 451 */ 452 453struct _SLK; 454 455#ifndef USE_TERMLIB 456 457typedef 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 466typedef 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 479typedef 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 */ 491typedef int *TYPE_gpm_fd; 492typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int); 493typedef int (*TYPE_Gpm_Close) (void); 494typedef 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 509typedef 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 524typedef 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 534typedef 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 554typedef 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 */ 583typedef 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 660extern 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 */ 668typedef 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 694extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen; 695 696/* 697 * The SCREEN structure. 698 */ 699 700struct 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 929extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain; 930extern 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) 1250extern NCURSES_EXPORT(int) _nc_use_tracef (unsigned); 1251extern 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 1274extern NCURSES_EXPORT(NCURSES_BOOL) _nc_retrace_bool (NCURSES_BOOL); 1275extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *); 1276extern NCURSES_EXPORT(SCREEN *) _nc_retrace_sp (SCREEN *); 1277extern NCURSES_EXPORT(WINDOW *) _nc_retrace_win (WINDOW *); 1278extern NCURSES_EXPORT(attr_t) _nc_retrace_attr_t (attr_t); 1279extern NCURSES_EXPORT(char *) _nc_retrace_ptr (char *); 1280extern NCURSES_EXPORT(char *) _nc_trace_ttymode(TTY *tty); 1281extern NCURSES_EXPORT(char *) _nc_varargs (const char *, va_list); 1282extern NCURSES_EXPORT(chtype) _nc_retrace_chtype (chtype); 1283extern NCURSES_EXPORT(const char *) _nc_altcharset_name(attr_t, chtype); 1284extern NCURSES_EXPORT(const char *) _nc_retrace_cptr (const char *); 1285extern NCURSES_EXPORT(int) _nc_retrace_int (int); 1286extern NCURSES_EXPORT(unsigned) _nc_retrace_unsigned (unsigned); 1287extern NCURSES_EXPORT(void *) _nc_retrace_void_ptr (void *); 1288extern NCURSES_EXPORT(void) _nc_fifo_dump (SCREEN *); 1289 1290#if USE_REENTRANT 1291NCURSES_WRAPPED_VAR(long, _nc_outchars); 1292NCURSES_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()) 1295extern NCURSES_EXPORT(void) _nc_set_tputs_trace (const char *); 1296extern NCURSES_EXPORT(void) _nc_count_outchars (long); 1297#else 1298extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace; 1299extern NCURSES_EXPORT_VAR(long) _nc_outchars; 1300#endif 1301 1302extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing; 1303 1304#if USE_WIDEC_SUPPORT 1305extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *); 1306extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int); 1307#endif 1308 1309extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int); 1310extern 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 1342extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *); 1343extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int); 1344 1345#define EMPTY_MODULE(name) \ 1346extern 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) 1421extern 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) 1425extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t); 1426 1427#undef DelCharCost 1428#define DelCharCost(count) _nc_DelCharCost(count) 1429extern NCURSES_EXPORT(int) _nc_DelCharCost (int); 1430 1431#undef InsCharCost 1432#define InsCharCost(count) _nc_InsCharCost(count) 1433extern NCURSES_EXPORT(int) _nc_InsCharCost (int); 1434 1435#undef UpdateAttrs 1436#define UpdateAttrs(c) _nc_UpdateAttrs(c) 1437extern NCURSES_EXPORT(void) _nc_UpdateAttrs (NCURSES_CH_T); 1438 1439#else 1440 1441extern 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 1455extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t); 1456extern NCURSES_EXPORT(int) _nc_to_char(wint_t); 1457extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int); 1458#endif 1459 1460/* comp_captab.c */ 1461typedef 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 1468typedef struct 1469{ 1470 short from; 1471 short to; 1472 short source; 1473} alias_table_data; 1474 1475/* doupdate.c */ 1476#if USE_XMC_SUPPORT 1477extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t); 1478#endif 1479 1480/* hardscroll.c */ 1481#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG) 1482extern NCURSES_EXPORT(void) _nc_linedump (void); 1483#endif 1484 1485/* lib_acs.c */ 1486extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */ 1487extern NCURSES_EXPORT(int) _nc_msec_cost (const char *const, int); /* used by 'tack' program */ 1488 1489/* lib_addch.c */ 1490#if USE_WIDEC_SUPPORT 1491NCURSES_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) 1496extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *); 1497#endif 1498 1499/* lib_color.c */ 1500extern NCURSES_EXPORT(bool) _nc_reset_colors(void); 1501 1502/* lib_getch.c */ 1503extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, unsigned long *, int EVENTLIST_2nd(_nc_eventlist *)); 1504 1505/* lib_insch.c */ 1506extern NCURSES_EXPORT(int) _nc_insert_ch(WINDOW *, chtype); 1507 1508/* lib_mvcur.c */ 1509#define INFINITY 1000000 /* cost: too high to use */ 1510 1511extern NCURSES_EXPORT(void) _nc_mvcur_init (void); 1512extern NCURSES_EXPORT(void) _nc_mvcur_resume (void); 1513extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void); 1514 1515extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int); 1516 1517extern NCURSES_EXPORT(void) _nc_screen_init (void); 1518extern NCURSES_EXPORT(void) _nc_screen_resume (void); 1519extern NCURSES_EXPORT(void) _nc_screen_wrap (void); 1520 1521/* lib_mouse.c */ 1522extern 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 */ 1529extern NCURSES_EXPORT(char *) _nc_get_locale(void); 1530extern NCURSES_EXPORT(int) _nc_unicode_locale(void); 1531extern NCURSES_EXPORT(int) _nc_locale_breaks_acs(TERMINAL *); 1532extern NCURSES_EXPORT(int) _nc_setupterm(NCURSES_CONST char *, int, int *, bool); 1533extern NCURSES_EXPORT(void) _nc_get_screensize(SCREEN *, int *, int *); 1534 1535/* lib_tstp.c */ 1536#if USE_SIGWINCH 1537extern NCURSES_EXPORT(int) _nc_handle_sigwinch(SCREEN *); 1538#else 1539#define _nc_handle_sigwinch(a) /* nothing */ 1540#endif 1541 1542/* lib_ungetch.c */ 1543extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int); 1544 1545/* lib_wacs.c */ 1546#if USE_WIDEC_SUPPORT 1547extern NCURSES_EXPORT(void) _nc_init_wacs(void); 1548#endif 1549 1550typedef 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 */ 1558extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t); 1559extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t); 1560extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, string_desc *); 1561extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *); 1562extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *); 1563 1564#if !HAVE_STRSTR 1565#define strstr _nc_strstr 1566extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *); 1567#endif 1568 1569/* safe_sprintf.c */ 1570extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list); 1571 1572/* tries.c */ 1573extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned); 1574extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t); 1575extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned); 1576extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *); 1577 1578/* elsewhere ... */ 1579extern NCURSES_EXPORT(ENTRY *) _nc_delink_entry (ENTRY *, TERMTYPE *); 1580extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int); 1581extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype); 1582extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *); 1583extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int); 1584extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t); 1585extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *); 1586extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int); 1587extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *); 1588extern NCURSES_EXPORT(int) _nc_access (const char *, int); 1589extern NCURSES_EXPORT(int) _nc_baudrate (int); 1590extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *); 1591extern NCURSES_EXPORT(int) _nc_getenv_num (const char *); 1592extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, bool); 1593extern NCURSES_EXPORT(int) _nc_ospeed (int); 1594extern NCURSES_EXPORT(int) _nc_outch (int); 1595extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE *const); 1596extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, bool, int); 1597extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *)); 1598extern NCURSES_EXPORT(void) _nc_do_color (short, short, bool, int (*)(int)); 1599extern NCURSES_EXPORT(void) _nc_flush (void); 1600extern NCURSES_EXPORT(void) _nc_free_and_exit (int); 1601extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE *); 1602extern NCURSES_EXPORT(void) _nc_freeall (void); 1603extern NCURSES_EXPORT(void) _nc_hash_map (void); 1604extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *); 1605extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *); 1606extern NCURSES_EXPORT(void) _nc_make_oldhash (int i); 1607extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot); 1608extern NCURSES_EXPORT(void) _nc_scroll_optimize (void); 1609extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, bool); 1610extern NCURSES_EXPORT(void) _nc_signal_handler (bool); 1611extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *); 1612extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *); 1613 1614#if NO_LEAKS 1615extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void); 1616extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void); 1617extern NCURSES_EXPORT(void) _nc_codes_leaks(void); 1618extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void); 1619extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void); 1620extern NCURSES_EXPORT(void) _nc_keyname_leaks(void); 1621extern NCURSES_EXPORT(void) _nc_names_leaks(void); 1622extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void); 1623#endif 1624 1625#ifndef USE_TERMLIB 1626extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T); 1627extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T); 1628extern 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) 1632extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *); 1633#endif 1634 1635#if USE_SIZECHANGE 1636extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *); 1637#endif 1638 1639#if HAVE_RESIZETERM 1640extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *); 1641#else 1642#define _nc_resize_margins(wp) /* nothing */ 1643#endif 1644 1645#ifdef NCURSES_WGETCH_EVENTS 1646extern 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 1656extern int vsscanf(const char *str, const char *format, va_list __arg); 1657#endif 1658 1659/* scroll indices */ 1660extern 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() 1674extern NCURSES_EXPORT(SCREEN *) _nc_screen (void); 1675extern NCURSES_EXPORT(int) _nc_alloc_screen (void); 1676extern NCURSES_EXPORT(void) _nc_set_screen (SCREEN *); 1677#else 1678/* current screen is private data; avoid possible linking conflicts too */ 1679extern 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 1692extern 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 1710extern 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 */ 1723