1/**************************************************************************** 2 * Copyright (c) 1998-2004,2005 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 1.286 2005/09/10 22:34:50 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 && 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 205struct tries { 206 struct tries *child; /* ptr to child. NULL if none */ 207 struct tries *sibling; /* ptr to sibling. NULL if none */ 208 unsigned char ch; /* character at this node */ 209 unsigned short value; /* code of string so far. 0 if none. */ 210}; 211 212/* 213 * Common/troublesome character definitions 214 */ 215#define L_BRACE '{' 216#define R_BRACE '}' 217#define S_QUOTE '\'' 218#define D_QUOTE '"' 219 220#define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~" 221 222/* 223 * Structure for palette tables 224 */ 225 226typedef struct 227{ 228 short red, green, blue; /* what color_content() returns */ 229 short r, g, b; /* params to init_color() */ 230 int init; /* true if we called init_color() */ 231} 232color_t; 233 234#define MAXCOLUMNS 135 235#define MAXLINES 66 236#define FIFO_SIZE MAXCOLUMNS+2 /* for nocbreak mode input */ 237 238#define ACS_LEN 128 239 240#define WINDOWLIST struct _win_list 241 242#if USE_WIDEC_SUPPORT 243#define _nc_bkgd _bkgrnd 244#else 245#undef _XOPEN_SOURCE_EXTENDED 246#define _nc_bkgd _bkgd 247#define wgetbkgrnd(win, wch) *wch = win->_bkgd 248#define wbkgrnd wbkgd 249#endif 250 251#include <curses.h> /* we'll use -Ipath directive to get the right one! */ 252#include <term.h> 253#include <term_entry.h> 254 255#if NCURSES_EXT_COLORS && USE_WIDEC_SUPPORT 256#define if_EXT_COLORS(stmt) stmt 257#define NetPair(value,p) (value).ext_color = (p), \ 258 AttrOf(value) &= ALL_BUT_COLOR, \ 259 AttrOf(value) |= (A_COLOR & COLOR_PAIR((p > 255) ? 255 : p)) 260#define SetPair(value,p) (value).ext_color = (p) 261#define GetPair(value) (value).ext_color 262#define unColor(n) (AttrOf(n) & ALL_BUT_COLOR) 263#define GET_WINDOW_PAIR(w) (w)->_color 264#define SET_WINDOW_PAIR(w,p) (w)->_color = (p) 265#define SameAttrOf(a,b) (AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b)) 266#define VIDATTR(attr, pair) vid_attr(attr, pair, 0) 267#else 268#define if_EXT_COLORS(stmt) /* nothing */ 269#define SetPair(value,p) RemAttr(value, A_COLOR), \ 270 SetAttr(value, AttrOf(value) | (A_COLOR & COLOR_PAIR(p))) 271#define GetPair(value) PAIR_NUMBER(AttrOf(value)) 272#define unColor(n) (AttrOf(n) & ALL_BUT_COLOR) 273#define GET_WINDOW_PAIR(w) PAIR_NUMBER((w)->_attrs) 274#define SET_WINDOW_PAIR(w,p) (w)->_attrs &= ALL_BUT_COLOR, \ 275 (w)->_attrs |= (A_COLOR & COLOR_PAIR(p)) 276#define SameAttrOf(a,b) (AttrOf(a) == AttrOf(b)) 277#define VIDATTR(attr, pair) vidattr(attr) 278#endif 279 280#define SCREEN_ATTRS(s) (*((s)->_current_attr)) 281#define GET_SCREEN_PAIR(s) GetPair(SCREEN_ATTRS(s)) 282#define SET_SCREEN_PAIR(s,p) SetPair(SCREEN_ATTRS(s), p) 283 284/* 285 * Definitions for color pairs 286 */ 287typedef unsigned colorpair_t; /* type big enough to store PAIR_OF() */ 288#define C_SHIFT 9 /* we need more bits than there are colors */ 289#define C_MASK ((1 << C_SHIFT) - 1) 290#define PAIR_OF(fg, bg) ((((fg) & C_MASK) << C_SHIFT) | ((bg) & C_MASK)) 291#define isDefaultColor(c) ((c) >= COLOR_DEFAULT || (c) < 0) 292 293#define COLOR_DEFAULT C_MASK 294 295#ifdef USE_TERMLIB 296 297#undef NCURSES_CH_T /* this is not a termlib feature */ 298#define NCURSES_CH_T void /* ...but we need a pointer in SCREEN */ 299 300#endif /* USE_TERMLIB */ 301 302#ifndef USE_TERMLIB 303struct ldat 304{ 305 NCURSES_CH_T *text; /* text of the line */ 306 NCURSES_SIZE_T firstchar; /* first changed character in the line */ 307 NCURSES_SIZE_T lastchar; /* last changed character in the line */ 308 NCURSES_SIZE_T oldindex; /* index of the line at last update */ 309}; 310#endif /* USE_TERMLIB */ 311 312typedef enum { 313 M_XTERM = -1 /* use xterm's mouse tracking? */ 314 ,M_NONE = 0 /* no mouse device */ 315#if USE_GPM_SUPPORT 316 ,M_GPM /* use GPM */ 317#endif 318#if USE_SYSMOUSE 319 ,M_SYSMOUSE /* FreeBSD sysmouse on console */ 320#endif 321} MouseType; 322 323/* 324 * Structures for scrolling. 325 */ 326 327typedef struct { 328 unsigned long hashval; 329 int oldcount, newcount; 330 int oldindex, newindex; 331} HASHMAP; 332 333/* 334 * Structures for soft labels. 335 */ 336 337struct _SLK; 338 339#ifndef USE_TERMLIB 340 341typedef struct 342{ 343 char *ent_text; /* text for the label */ 344 char *form_text; /* formatted text (left/center/...) */ 345 int ent_x; /* x coordinate of this field */ 346 char dirty; /* this label has changed */ 347 char visible; /* field is visible */ 348} slk_ent; 349 350typedef struct _SLK { 351 char dirty; /* all labels have changed */ 352 char hidden; /* soft labels are hidden */ 353 WINDOW *win; 354 slk_ent *ent; 355 short maxlab; /* number of available labels */ 356 short labcnt; /* number of allocated labels */ 357 short maxlen; /* length of labels */ 358 NCURSES_CH_T attr; /* soft label attribute */ 359} SLK; 360 361#endif /* USE_TERMLIB */ 362 363typedef struct { 364 int line; /* lines to take, < 0 => from bottom*/ 365 int (*hook)(WINDOW *, int); /* callback for user */ 366 WINDOW *w; /* maybe we need this for cleanup */ 367} ripoff_t; 368 369/* 370 * The SCREEN structure. 371 */ 372 373struct screen { 374 int _ifd; /* input file ptr for screen */ 375 FILE *_ofp; /* output file ptr for screen */ 376 char *_setbuf; /* buffered I/O for output */ 377 int _buffered; /* setvbuf uses _setbuf data */ 378 int _checkfd; /* filedesc for typeahead check */ 379 TERMINAL *_term; /* terminal type information */ 380 short _lines; /* screen lines */ 381 short _columns; /* screen columns */ 382 383 short _lines_avail; /* lines available for stdscr */ 384 short _topstolen; /* lines stolen from top */ 385 ripoff_t _rippedoff[5]; /* list of lines stolen */ 386 int _rip_count; /* ...and total lines stolen */ 387 388 WINDOW *_curscr; /* current screen */ 389 WINDOW *_newscr; /* virtual screen to be updated to */ 390 WINDOW *_stdscr; /* screen's full-window context */ 391 392 struct tries *_keytry; /* "Try" for use with keypad mode */ 393 struct tries *_key_ok; /* Disabled keys via keyok(,FALSE) */ 394 bool _tried; /* keypad mode was initialized */ 395 bool _keypad_on; /* keypad mode is currently on */ 396 397 bool _called_wgetch; /* check for recursion in wgetch() */ 398 int _fifo[FIFO_SIZE]; /* input push-back buffer */ 399 short _fifohead, /* head of fifo queue */ 400 _fifotail, /* tail of fifo queue */ 401 _fifopeek, /* where to peek for next char */ 402 _fifohold; /* set if breakout marked */ 403 404 int _endwin; /* are we out of window mode? */ 405 NCURSES_CH_T *_current_attr; /* holds current attributes set */ 406 int _coloron; /* is color enabled? */ 407 int _color_defs; /* are colors modified */ 408 int _cursor; /* visibility of the cursor */ 409 int _cursrow; /* physical cursor row */ 410 int _curscol; /* physical cursor column */ 411 bool _notty; /* true if we cannot switch non-tty */ 412 int _nl; /* True if NL -> CR/NL is on */ 413 int _raw; /* True if in raw mode */ 414 int _cbreak; /* 1 if in cbreak mode */ 415 /* > 1 if in halfdelay mode */ 416 int _echo; /* True if echo on */ 417 int _use_meta; /* use the meta key? */ 418 struct _SLK *_slk; /* ptr to soft key struct / NULL */ 419 int slk_format; /* selected format for this screen */ 420 /* cursor movement costs; units are 10ths of milliseconds */ 421#if NCURSES_NO_PADDING 422 int _no_padding; /* flag to set if padding disabled */ 423#endif 424 int _char_padding; /* cost of character put */ 425 int _cr_cost; /* cost of (carriage_return) */ 426 int _cup_cost; /* cost of (cursor_address) */ 427 int _home_cost; /* cost of (cursor_home) */ 428 int _ll_cost; /* cost of (cursor_to_ll) */ 429#if USE_HARD_TABS 430 int _ht_cost; /* cost of (tab) */ 431 int _cbt_cost; /* cost of (backtab) */ 432#endif /* USE_HARD_TABS */ 433 int _cub1_cost; /* cost of (cursor_left) */ 434 int _cuf1_cost; /* cost of (cursor_right) */ 435 int _cud1_cost; /* cost of (cursor_down) */ 436 int _cuu1_cost; /* cost of (cursor_up) */ 437 int _cub_cost; /* cost of (parm_cursor_left) */ 438 int _cuf_cost; /* cost of (parm_cursor_right) */ 439 int _cud_cost; /* cost of (parm_cursor_down) */ 440 int _cuu_cost; /* cost of (parm_cursor_up) */ 441 int _hpa_cost; /* cost of (column_address) */ 442 int _vpa_cost; /* cost of (row_address) */ 443 /* used in tty_update.c, must be chars */ 444 int _ed_cost; /* cost of (clr_eos) */ 445 int _el_cost; /* cost of (clr_eol) */ 446 int _el1_cost; /* cost of (clr_bol) */ 447 int _dch1_cost; /* cost of (delete_character) */ 448 int _ich1_cost; /* cost of (insert_character) */ 449 int _dch_cost; /* cost of (parm_dch) */ 450 int _ich_cost; /* cost of (parm_ich) */ 451 int _ech_cost; /* cost of (erase_chars) */ 452 int _rep_cost; /* cost of (repeat_char) */ 453 int _hpa_ch_cost; /* cost of (column_address) */ 454 int _cup_ch_cost; /* cost of (cursor_address) */ 455 int _cuf_ch_cost; /* cost of (parm_cursor_right) */ 456 int _inline_cost; /* cost of inline-move */ 457 int _smir_cost; /* cost of (enter_insert_mode) */ 458 int _rmir_cost; /* cost of (exit_insert_mode) */ 459 int _ip_cost; /* cost of (insert_padding) */ 460 /* used in lib_mvcur.c */ 461 char * _address_cursor; 462 /* used in tty_update.c */ 463 int _scrolling; /* 1 if terminal's smart enough to */ 464 465 /* used in lib_color.c */ 466 color_t *_color_table; /* screen's color palette */ 467 int _color_count; /* count of colors in palette */ 468 colorpair_t *_color_pairs; /* screen's color pair list */ 469 int _pair_count; /* count of color pairs */ 470#if NCURSES_EXT_FUNCS 471 bool _default_color; /* use default colors */ 472 bool _has_sgr_39_49; /* has ECMA default color support */ 473 int _default_fg; /* assumed default foreground */ 474 int _default_bg; /* assumed default background */ 475#endif 476 chtype _xmc_suppress; /* attributes to suppress if xmc */ 477 chtype _xmc_triggers; /* attributes to process if xmc */ 478 chtype _acs_map[ACS_LEN]; /* the real alternate-charset map */ 479 480 /* used in lib_vidattr.c */ 481 bool _use_rmso; /* true if we may use 'rmso' */ 482 bool _use_rmul; /* true if we may use 'rmul' */ 483 484 /* 485 * These data correspond to the state of the idcok() and idlok() 486 * functions. A caveat is in order here: the XSI and SVr4 487 * documentation specify that these functions apply to the window which 488 * is given as an argument. However, ncurses implements this logic 489 * only for the newscr/curscr update process, _not_ per-window. 490 */ 491 bool _nc_sp_idlok; 492 bool _nc_sp_idcok; 493#define _nc_idlok SP->_nc_sp_idlok 494#define _nc_idcok SP->_nc_sp_idcok 495 496 /* 497 * These are the data that support the mouse interface. 498 */ 499 MouseType _mouse_type; 500 int _maxclick; 501 bool (*_mouse_event) (SCREEN *); 502 bool (*_mouse_inline)(SCREEN *); 503 bool (*_mouse_parse) (int); 504 void (*_mouse_resume)(SCREEN *); 505 void (*_mouse_wrap) (SCREEN *); 506 int _mouse_fd; /* file-descriptor, if any */ 507 bool _mouse_active; /* true if initialized */ 508 NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */ 509#if USE_SYSMOUSE 510 MEVENT _sysmouse_fifo[FIFO_SIZE]; 511 int _sysmouse_head; 512 int _sysmouse_tail; 513 int _sysmouse_char_width; /* character width */ 514 int _sysmouse_char_height; /* character height */ 515 int _sysmouse_old_buttons; 516 int _sysmouse_new_buttons; 517#endif 518 519 /* 520 * This supports automatic resizing 521 */ 522#if USE_SIZECHANGE 523 int (*_resize)(int,int); 524#endif 525 526 /* 527 * These are data that support the proper handling of the panel stack on an 528 * per screen basis. 529 */ 530 struct panelhook _panelHook; 531 /* 532 * Linked-list of all windows, to support '_nc_resizeall()' and 533 * '_nc_freeall()' 534 */ 535 WINDOWLIST *_nc_sp_windows; 536#define _nc_windows SP->_nc_sp_windows 537 538 bool _sig_winch; 539 SCREEN *_next_screen; 540 541 /* hashes for old and new lines */ 542 unsigned long *oldhash, *newhash; 543 HASHMAP *hashtab; 544 int hashtab_len; 545 546 bool _cleanup; /* cleanup after int/quit signal */ 547 int (*_outch)(int); /* output handler if not putc */ 548 549 /* recent versions of 'screen' have partially-working support for 550 * UTF-8, but do not permit ACS at the same time (see tty_update.c). 551 */ 552#if USE_WIDEC_SUPPORT 553 bool _legacy_coding; 554 bool _screen_acs_fix; 555#endif 556 bool _screen_acs_map[ACS_LEN]; 557}; 558 559extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain; 560 561#if NCURSES_NOMACROS 562#include <nomacros.h> 563#endif 564 565 WINDOWLIST { 566 WINDOW win; /* first, so WINDOW_EXT() works */ 567 WINDOWLIST *next; 568#ifdef _XOPEN_SOURCE_EXTENDED 569 char addch_work[(MB_LEN_MAX * 9) + 1]; 570 unsigned addch_used; /* number of bytes in addch_work[] */ 571 int addch_x; /* x-position for addch_work[] */ 572 int addch_y; /* y-position for addch_work[] */ 573#endif 574}; 575 576#define WINDOW_EXT(win,field) (((WINDOWLIST *)(win))->field) 577 578/* usually in <limits.h> */ 579#ifndef UCHAR_MAX 580#define UCHAR_MAX 255 581#endif 582 583/* The terminfo source is assumed to be 7-bit ASCII */ 584#define is7bits(c) ((unsigned)(c) < 128) 585 586/* Checks for isprint() should be done on 8-bit characters (non-wide) */ 587#define is8bits(c) ((unsigned)(c) <= UCHAR_MAX) 588 589#ifndef min 590#define min(a,b) ((a) > (b) ? (b) : (a)) 591#endif 592 593#ifndef max 594#define max(a,b) ((a) < (b) ? (b) : (a)) 595#endif 596 597/* usually in <unistd.h> */ 598#ifndef STDIN_FILENO 599#define STDIN_FILENO 0 600#endif 601 602#ifndef STDOUT_FILENO 603#define STDOUT_FILENO 1 604#endif 605 606#ifndef STDERR_FILENO 607#define STDERR_FILENO 2 608#endif 609 610#ifndef EXIT_SUCCESS 611#define EXIT_SUCCESS 0 612#endif 613 614#ifndef EXIT_FAILURE 615#define EXIT_FAILURE 1 616#endif 617 618#ifndef R_OK 619#define R_OK 4 /* Test for read permission. */ 620#endif 621#ifndef W_OK 622#define W_OK 2 /* Test for write permission. */ 623#endif 624#ifndef X_OK 625#define X_OK 1 /* Test for execute permission. */ 626#endif 627#ifndef F_OK 628#define F_OK 0 /* Test for existence. */ 629#endif 630 631#if HAVE_FCNTL_H 632#include <fcntl.h> /* may define O_BINARY */ 633#endif 634 635#ifndef O_BINARY 636#define O_BINARY 0 637#endif 638 639#ifdef TRACE 640#define TRACE_OUTCHARS(n) _nc_outchars += (n); 641#else 642#define TRACE_OUTCHARS(n) /* nothing */ 643#endif 644 645#define UChar(c) ((unsigned char)(c)) 646#define ChCharOf(c) ((c) & (chtype)A_CHARTEXT) 647#define ChAttrOf(c) ((c) & (chtype)A_ATTRIBUTES) 648 649#ifndef MB_LEN_MAX 650#define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */ 651#endif 652 653#if USE_WIDEC_SUPPORT /* { */ 654#define isEILSEQ(status) ((status == (size_t)-1) && (errno == EILSEQ)) 655 656#define init_mb(state) memset(&state, 0, sizeof(state)) 657 658#if NCURSES_EXT_COLORS 659#define NulColor , 0 660#else 661#define NulColor /* nothing */ 662#endif 663 664#define NulChar 0,0,0,0 /* FIXME: see CCHARW_MAX */ 665#define CharOf(c) ((c).chars[0]) 666#define AttrOf(c) ((c).attr) 667#define AddAttr(c,a) AttrOf(c) |= a 668#define RemAttr(c,a) AttrOf(c) &= ~(a) 669#define SetAttr(c,a) AttrOf(c) = a 670#define NewChar(ch) { ChAttrOf(ch), { ChCharOf(ch), NulChar } NulColor } 671#define NewChar2(c,a) { a, { c, NulChar } NulColor } 672#define CharEq(a,b) (!memcmp(&a, &b, sizeof(a))) 673#define SetChar(ch,c,a) do { \ 674 NCURSES_CH_T *_cp = &ch; \ 675 memset(_cp, 0, sizeof(ch)); \ 676 _cp->chars[0] = c; \ 677 _cp->attr = a; \ 678 if_EXT_COLORS(SetPair(ch, PAIR_NUMBER(a))); \ 679 } while (0) 680#define CHREF(wch) (&wch) 681#define CHDEREF(wch) (*wch) 682#define ARG_CH_T NCURSES_CH_T * 683#define CARG_CH_T const NCURSES_CH_T * 684#define PUTC_DATA char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \ 685 mbstate_t PUT_st; wchar_t PUTC_ch 686#define PUTC_INIT init_mb (PUT_st); \ 687 PUTC_i = 0 688#define PUTC(ch,b) do { if(!isWidecExt(ch)) { \ 689 if (Charable(ch)) { \ 690 fputc(CharOf(ch), b); \ 691 TRACE_OUTCHARS(1); \ 692 } else { \ 693 PUTC_INIT; \ 694 do { \ 695 PUTC_ch = PUTC_i < CCHARW_MAX ? \ 696 (ch).chars[PUTC_i] : L'\0'; \ 697 PUTC_n = wcrtomb(PUTC_buf, \ 698 (ch).chars[PUTC_i], &PUT_st); \ 699 if (PUTC_ch == L'\0') \ 700 --PUTC_n; \ 701 if (PUTC_n <= 0) \ 702 break; \ 703 fwrite(PUTC_buf, (unsigned) PUTC_n, 1, b); \ 704 ++PUTC_i; \ 705 } while (PUTC_ch != L'\0'); \ 706 TRACE_OUTCHARS(PUTC_i); \ 707 } } } while (0) 708 709#define BLANK { WA_NORMAL, {' '} NulColor } 710#define ZEROS { WA_NORMAL, {'\0'} NulColor } 711#define ISBLANK(ch) ((ch).chars[0] == L' ' && (ch).chars[1] == L'\0') 712 713 /* 714 * Wide characters cannot be represented in the A_CHARTEXT mask of 715 * attr_t's but an application might have set a narrow character there. 716 * But even in that case, it would only be a printable character, or 717 * zero. Otherwise we can use those bits to tell if a cell is the 718 * first or extension part of a wide character. 719 */ 720#define WidecExt(ch) (AttrOf(ch) & A_CHARTEXT) 721#define isWidecBase(ch) (WidecExt(ch) == 1) 722#define isWidecExt(ch) (WidecExt(ch) > 1 && WidecExt(ch) < 32) 723#define SetWidecExt(dst, ext) AttrOf(dst) &= ~A_CHARTEXT, \ 724 AttrOf(dst) |= (ext + 1) 725 726#define if_WIDEC(code) code 727#define Charable(ch) ((SP != 0 && SP->_legacy_coding) \ 728 || (AttrOf(ch) & A_ALTCHARSET) \ 729 || (!isWidecExt(ch) && \ 730 (ch).chars[1] == L'\0' && \ 731 _nc_is_charable(CharOf(ch)))) 732 733#define L(ch) L ## ch 734#else /* }{ */ 735#define CharOf(c) ChCharOf(c) 736#define AttrOf(c) ChAttrOf(c) 737#define AddAttr(c,a) c |= a 738#define RemAttr(c,a) c &= ~(a & A_ATTRIBUTES) 739#define SetAttr(c,a) c = (c & ~A_ATTRIBUTES) | a 740#define NewChar(ch) (ch) 741#define NewChar2(c,a) (c | a) 742#define CharEq(a,b) (a == b) 743#define SetChar(ch,c,a) ch = c | a 744#define CHREF(wch) wch 745#define CHDEREF(wch) wch 746#define ARG_CH_T NCURSES_CH_T 747#define CARG_CH_T NCURSES_CH_T 748#define PUTC_DATA int data = 0 749#define PUTC(a,b) do { data = CharOf(ch); putc(data,b); } while (0) 750 751#define BLANK (' '|A_NORMAL) 752#define ZEROS ('\0'|A_NORMAL) 753#define ISBLANK(ch) (CharOf(ch) == ' ') 754 755#define isWidecExt(ch) (0) 756#define if_WIDEC(code) /* nothing */ 757 758#define L(ch) ch 759#endif /* } */ 760 761#define AttrOfD(ch) AttrOf(CHDEREF(ch)) 762#define CharOfD(ch) CharOf(CHDEREF(ch)) 763#define SetChar2(wch,ch) SetChar(wch,ChCharOf(ch),ChAttrOf(ch)) 764 765#define BLANK_ATTR A_NORMAL 766#define BLANK_TEXT L(' ') 767 768#define CHANGED -1 769 770#define LEGALYX(w, y, x) \ 771 ((w) != 0 && \ 772 ((x) >= 0 && (x) <= (w)->_maxx && \ 773 (y) >= 0 && (y) <= (w)->_maxy)) 774 775#define CHANGED_CELL(line,col) \ 776 if (line->firstchar == _NOCHANGE) \ 777 line->firstchar = line->lastchar = col; \ 778 else if ((col) < line->firstchar) \ 779 line->firstchar = col; \ 780 else if ((col) > line->lastchar) \ 781 line->lastchar = col 782 783#define CHANGED_RANGE(line,start,end) \ 784 if (line->firstchar == _NOCHANGE \ 785 || line->firstchar > (start)) \ 786 line->firstchar = start; \ 787 if (line->lastchar == _NOCHANGE \ 788 || line->lastchar < (end)) \ 789 line->lastchar = end 790 791#define CHANGED_TO_EOL(line,start,end) \ 792 if (line->firstchar == _NOCHANGE \ 793 || line->firstchar > (start)) \ 794 line->firstchar = start; \ 795 line->lastchar = end 796 797#define SIZEOF(v) (sizeof(v)/sizeof(v[0])) 798 799#define FreeIfNeeded(p) if ((p) != 0) free(p) 800 801/* FreeAndNull() is not a comma-separated expression because some compilers 802 * do not accept a mixture of void with values. 803 */ 804#define FreeAndNull(p) free(p); p = 0 805 806#include <nc_alloc.h> 807 808/* 809 * Prefixes for call/return points of library function traces. We use these to 810 * instrument the public functions so that the traces can be easily transformed 811 * into regression scripts. 812 */ 813#define T_CALLED(fmt) "called {" fmt 814#define T_CREATE(fmt) "create :" fmt 815#define T_RETURN(fmt) "return }" fmt 816 817#ifdef TRACE 818 819#define START_TRACE() \ 820 if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \ 821 int t = _nc_getenv_num("NCURSES_TRACE"); \ 822 if (t >= 0) \ 823 trace((unsigned) t); \ 824 } 825 826#define TR(n, a) if (_nc_tracing & (n)) _tracef a 827#define T(a) TR(TRACE_CALLS, a) 828#define TPUTS_TRACE(s) _nc_tputs_trace = s; 829#define TRACE_RETURN(value,type) return _nc_retrace_##type(value) 830 831#define returnAttr(code) TRACE_RETURN(code,attr_t) 832#define returnBits(code) TRACE_RETURN(code,unsigned) 833#define returnBool(code) TRACE_RETURN(code,bool) 834#define returnCPtr(code) TRACE_RETURN(code,cptr) 835#define returnCVoidPtr(code) TRACE_RETURN(code,cvoid_ptr) 836#define returnChar(code) TRACE_RETURN(code,chtype) 837#define returnCode(code) TRACE_RETURN(code,int) 838#define returnPtr(code) TRACE_RETURN(code,ptr) 839#define returnSP(code) TRACE_RETURN(code,sp) 840#define returnVoid T((T_RETURN(""))); return 841#define returnVoidPtr(code) TRACE_RETURN(code,void_ptr) 842#define returnWin(code) TRACE_RETURN(code,win) 843 844extern NCURSES_EXPORT(NCURSES_BOOL) _nc_retrace_bool (NCURSES_BOOL); 845extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *); 846extern NCURSES_EXPORT(SCREEN *) _nc_retrace_sp (SCREEN *); 847extern NCURSES_EXPORT(WINDOW *) _nc_retrace_win (WINDOW *); 848extern NCURSES_EXPORT(attr_t) _nc_retrace_attr_t (attr_t); 849extern NCURSES_EXPORT(char *) _nc_retrace_ptr (char *); 850extern NCURSES_EXPORT(char *) _nc_trace_ttymode(TTY *tty); 851extern NCURSES_EXPORT(char *) _nc_varargs (const char *, va_list); 852extern NCURSES_EXPORT(chtype) _nc_retrace_chtype (chtype); 853extern NCURSES_EXPORT(const char *) _nc_altcharset_name(attr_t, chtype); 854extern NCURSES_EXPORT(const char *) _nc_retrace_cptr (const char *); 855extern NCURSES_EXPORT(int) _nc_retrace_int (int); 856extern NCURSES_EXPORT(unsigned) _nc_retrace_unsigned (unsigned); 857extern NCURSES_EXPORT(void *) _nc_retrace_void_ptr (void *); 858extern NCURSES_EXPORT(void) _nc_fifo_dump (void); 859extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace; 860extern NCURSES_EXPORT_VAR(long) _nc_outchars; 861extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing; 862 863#if USE_WIDEC_SUPPORT 864extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *); 865extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int); 866extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const cchar_t *, int); 867extern NCURSES_EXPORT(const char *) _nc_viscbuf (const cchar_t *, int); 868#endif 869 870#else /* !TRACE */ 871 872#define START_TRACE() /* nothing */ 873 874#define T(a) 875#define TR(n, a) 876#define TPUTS_TRACE(s) 877 878#define returnAttr(code) return code 879#define returnBits(code) return code 880#define returnBool(code) return code 881#define returnCPtr(code) return code 882#define returnCVoidPtr(code) return code 883#define returnChar(code) return code 884#define returnCode(code) return code 885#define returnPtr(code) return code 886#define returnSP(code) return code 887#define returnVoid return 888#define returnVoidPtr(code) return code 889#define returnWin(code) return code 890 891#endif /* TRACE/!TRACE */ 892 893extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *); 894extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int); 895 896#define empty_module(name) \ 897extern NCURSES_EXPORT(void) name (void); \ 898 NCURSES_EXPORT(void) name (void) { } 899 900#define ALL_BUT_COLOR ((chtype)~(A_COLOR)) 901#define NONBLANK_ATTR (A_NORMAL|A_BOLD|A_DIM|A_BLINK) 902#define XMC_CHANGES(c) ((c) & SP->_xmc_suppress) 903 904#define toggle_attr_on(S,at) {\ 905 if (PAIR_NUMBER(at) > 0) {\ 906 (S) = ((S) & ALL_BUT_COLOR) | (at);\ 907 } else {\ 908 (S) |= (at);\ 909 }\ 910 TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));} 911 912 913#define toggle_attr_off(S,at) {\ 914 if (PAIR_NUMBER(at) > 0) {\ 915 (S) &= ~(at|A_COLOR);\ 916 } else {\ 917 (S) &= ~(at);\ 918 }\ 919 TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));} 920 921#define DelCharCost(count) \ 922 ((parm_dch != 0) \ 923 ? SP->_dch_cost \ 924 : ((delete_character != 0) \ 925 ? (SP->_dch1_cost * count) \ 926 : INFINITY)) 927 928#define InsCharCost(count) \ 929 ((parm_ich != 0) \ 930 ? SP->_ich_cost \ 931 : ((enter_insert_mode && exit_insert_mode) \ 932 ? SP->_smir_cost + SP->_rmir_cost + (SP->_ip_cost * count) \ 933 : ((insert_character != 0) \ 934 ? ((SP->_ich1_cost + SP->_ip_cost) * count) \ 935 : INFINITY))) 936 937#if USE_XMC_SUPPORT 938#define UpdateAttrs(c) if (!SameAttrOf(SCREEN_ATTRS(SP), c)) { \ 939 attr_t chg = AttrOf(SCREEN_ATTRS(SP)); \ 940 VIDATTR(AttrOf(c), GetPair(c)); \ 941 if (magic_cookie_glitch > 0 \ 942 && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(SP))))) { \ 943 T(("%s @%d before glitch %d,%d", \ 944 __FILE__, __LINE__, \ 945 SP->_cursrow, \ 946 SP->_curscol)); \ 947 _nc_do_xmc_glitch(chg); \ 948 } \ 949 } 950#else 951#define UpdateAttrs(c) if (!SameAttrOf(SCREEN_ATTRS(SP), c)) \ 952 VIDATTR(AttrOf(c), GetPair(c)); 953#endif 954 955/* 956 * Macros to make additional parameter to implement wgetch_events() 957 */ 958#ifdef NCURSES_WGETCH_EVENTS 959#define EVENTLIST_0th(param) param 960#define EVENTLIST_1st(param) param 961#define EVENTLIST_2nd(param) , param 962#else 963#define EVENTLIST_0th(param) void 964#define EVENTLIST_1st(param) /* nothing */ 965#define EVENTLIST_2nd(param) /* nothing */ 966#endif 967 968#if NCURSES_EXPANDED && NCURSES_EXT_FUNCS 969 970#undef toggle_attr_on 971#define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at) 972extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t); 973 974#undef toggle_attr_off 975#define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at) 976extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t); 977 978#undef DelCharCost 979#define DelCharCost(count) _nc_DelCharCost(count) 980extern NCURSES_EXPORT(int) _nc_DelCharCost (int); 981 982#undef InsCharCost 983#define InsCharCost(count) _nc_InsCharCost(count) 984extern NCURSES_EXPORT(int) _nc_InsCharCost (int); 985 986#undef UpdateAttrs 987#define UpdateAttrs(c) _nc_UpdateAttrs(c) 988extern NCURSES_EXPORT(void) _nc_UpdateAttrs (NCURSES_CH_T); 989 990#else 991 992extern NCURSES_EXPORT(void) _nc_expanded (void); 993 994#endif 995 996#if !HAVE_GETCWD 997#define getcwd(buf,len) getwd(buf) 998#endif 999 1000/* charable.c */ 1001#if USE_WIDEC_SUPPORT 1002extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t); 1003extern NCURSES_EXPORT(int) _nc_to_char(wint_t); 1004extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int); 1005#endif 1006 1007/* doupdate.c */ 1008#if USE_XMC_SUPPORT 1009extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t); 1010#endif 1011 1012/* hardscroll.c */ 1013#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG) 1014extern NCURSES_EXPORT(void) _nc_linedump (void); 1015#endif 1016 1017/* lib_acs.c */ 1018extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */ 1019extern NCURSES_EXPORT(int) _nc_msec_cost (const char *const, int); /* used by 'tack' program */ 1020 1021/* lib_addch.c */ 1022#if USE_WIDEC_SUPPORT 1023NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch); 1024#endif 1025 1026/* lib_addstr.c */ 1027#if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB) 1028extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *); 1029#endif 1030 1031/* lib_color.c */ 1032extern NCURSES_EXPORT(bool) _nc_reset_colors(void); 1033 1034/* lib_getch.c */ 1035extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, unsigned long *, int EVENTLIST_2nd(_nc_eventlist *)); 1036 1037/* lib_insch.c */ 1038extern NCURSES_EXPORT(int) _nc_insert_ch(WINDOW *, chtype); 1039 1040/* lib_mvcur.c */ 1041#define INFINITY 1000000 /* cost: too high to use */ 1042 1043extern NCURSES_EXPORT(void) _nc_mvcur_init (void); 1044extern NCURSES_EXPORT(void) _nc_mvcur_resume (void); 1045extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void); 1046 1047extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int); 1048 1049extern NCURSES_EXPORT(void) _nc_screen_init (void); 1050extern NCURSES_EXPORT(void) _nc_screen_resume (void); 1051extern NCURSES_EXPORT(void) _nc_screen_wrap (void); 1052 1053/* lib_mouse.c */ 1054extern NCURSES_EXPORT(int) _nc_has_mouse (void); 1055 1056/* lib_mvcur.c */ 1057#define INFINITY 1000000 /* cost: too high to use */ 1058#define BAUDBYTE 9 /* 9 = 7 bits + 1 parity + 1 stop */ 1059 1060/* lib_setup.c */ 1061extern NCURSES_EXPORT(char *) _nc_get_locale(void); 1062extern NCURSES_EXPORT(int) _nc_unicode_locale(void); 1063extern NCURSES_EXPORT(int) _nc_locale_breaks_acs(void); 1064extern NCURSES_EXPORT(int) _nc_setupterm(NCURSES_CONST char *, int , int *, bool); 1065 1066/* lib_wacs.c */ 1067#if USE_WIDEC_SUPPORT 1068extern NCURSES_EXPORT(void) _nc_init_wacs(void); 1069#endif 1070 1071typedef struct { 1072 char *s_head; /* beginning of the string (may be null) */ 1073 char *s_tail; /* end of the string (may be null) */ 1074 size_t s_size; /* current remaining size available */ 1075 size_t s_init; /* total size available */ 1076} string_desc; 1077 1078/* strings.c */ 1079extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t); 1080extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t); 1081extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, string_desc *); 1082extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *); 1083extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *); 1084 1085#if !HAVE_STRSTR 1086#define strstr _nc_strstr 1087extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *); 1088#endif 1089 1090/* safe_sprintf.c */ 1091extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list); 1092 1093/* tries.c */ 1094extern NCURSES_EXPORT(void) _nc_add_to_try (struct tries **, const char *, unsigned short); 1095extern NCURSES_EXPORT(char *) _nc_expand_try (struct tries *, unsigned short, int *, size_t); 1096extern NCURSES_EXPORT(int) _nc_remove_key (struct tries **, unsigned short); 1097extern NCURSES_EXPORT(int) _nc_remove_string (struct tries **, const char *); 1098 1099/* elsewhere ... */ 1100extern NCURSES_EXPORT(ENTRY *) _nc_delink_entry(ENTRY *, TERMTYPE *); 1101extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int); 1102extern NCURSES_EXPORT(char *) _nc_home_terminfo (void); 1103extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t); 1104extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *); 1105extern NCURSES_EXPORT(int) _nc_access (const char *, int); 1106extern NCURSES_EXPORT(int) _nc_baudrate (int); 1107extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *); 1108extern NCURSES_EXPORT(int) _nc_getenv_num (const char *); 1109extern NCURSES_EXPORT(int) _nc_keypad (bool); 1110extern NCURSES_EXPORT(int) _nc_ospeed (int); 1111extern NCURSES_EXPORT(int) _nc_outch (int); 1112extern NCURSES_EXPORT(int) _nc_setupscreen (short, short const, FILE *); 1113extern NCURSES_EXPORT(int) _nc_timed_wait(int, int, int * EVENTLIST_2nd(_nc_eventlist *)); 1114extern NCURSES_EXPORT(void) _nc_do_color (int, int, bool, int (*)(int)); 1115extern NCURSES_EXPORT(void) _nc_flush (void); 1116extern NCURSES_EXPORT(void) _nc_free_entry(ENTRY *, TERMTYPE *); 1117extern NCURSES_EXPORT(void) _nc_freeall (void); 1118extern NCURSES_EXPORT(void) _nc_hash_map (void); 1119extern NCURSES_EXPORT(void) _nc_init_keytry (void); 1120extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *); 1121extern NCURSES_EXPORT(void) _nc_make_oldhash (int i); 1122extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot); 1123extern NCURSES_EXPORT(void) _nc_scroll_optimize (void); 1124extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, bool); 1125extern NCURSES_EXPORT(void) _nc_signal_handler (bool); 1126extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *); 1127extern NCURSES_EXPORT(void) _nc_trace_tries (struct tries *); 1128 1129#if NO_LEAKS 1130extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void); 1131extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void); 1132extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void); 1133#endif 1134 1135#ifndef USE_TERMLIB 1136extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T); 1137extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T); 1138extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, short const, short const, NCURSES_CH_T); 1139#endif 1140 1141#if USE_WIDEC_SUPPORT && !defined(USE_TERMLIB) 1142#ifdef linux 1143extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *); 1144#else 1145#define _nc_wcrtomb(s,wc,ps) wcrtomb(s,wc,ps) 1146#endif 1147#endif 1148 1149#if USE_SIZECHANGE 1150extern NCURSES_EXPORT(void) _nc_update_screensize (void); 1151#endif 1152 1153#if HAVE_RESIZETERM 1154extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *); 1155#else 1156#define _nc_resize_margins(wp) /* nothing */ 1157#endif 1158 1159#ifdef NCURSES_WGETCH_EVENTS 1160extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *); 1161#else 1162#define wgetch_events(win, evl) wgetch(win) 1163#define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen) 1164#endif 1165 1166/* 1167 * Not everyone has vsscanf(), but we'd like to use it for scanw(). 1168 */ 1169#if !HAVE_VSSCANF 1170extern int vsscanf(const char *str, const char *format, va_list __arg); 1171#endif 1172 1173/* scroll indices */ 1174extern NCURSES_EXPORT_VAR(int *) _nc_oldnums; 1175 1176#define USE_SETBUF_0 0 1177 1178#define NC_BUFFERED(flag) _nc_set_buffer(SP->_ofp, flag) 1179 1180#define NC_OUTPUT ((SP != 0) ? SP->_ofp : stdout) 1181 1182/* 1183 * On systems with a broken linker, define 'SP' as a function to force the 1184 * linker to pull in the data-only module with 'SP'. 1185 */ 1186#if BROKEN_LINKER 1187#define SP _nc_screen() 1188extern NCURSES_EXPORT(SCREEN *) _nc_screen (void); 1189extern NCURSES_EXPORT(int) _nc_alloc_screen (void); 1190extern NCURSES_EXPORT(void) _nc_set_screen (SCREEN *); 1191#else 1192/* current screen is private data; avoid possible linking conflicts too */ 1193extern NCURSES_EXPORT_VAR(SCREEN *) SP; 1194#define _nc_alloc_screen() ((SP = typeCalloc(SCREEN, 1)) != 0) 1195#define _nc_set_screen(sp) SP = sp 1196#endif 1197 1198/* 1199 * We don't want to use the lines or columns capabilities internally, because 1200 * if the application is running multiple screens under X, it's quite possible 1201 * they could all have type xterm but have different sizes! So... 1202 */ 1203#define screen_lines SP->_lines 1204#define screen_columns SP->_columns 1205 1206extern NCURSES_EXPORT_VAR(int) _nc_slk_format; /* != 0 if slk_init() called */ 1207extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int); 1208 1209/* 1210 * Some constants related to SLK's 1211 */ 1212#define MAX_SKEY_OLD 8 /* count of soft keys */ 1213#define MAX_SKEY_LEN_OLD 8 /* max length of soft key text */ 1214#define MAX_SKEY_PC 12 /* This is what most PC's have */ 1215#define MAX_SKEY_LEN_PC 5 1216 1217/* Macro to check whether or not we use a standard format */ 1218#define SLK_STDFMT(fmt) (fmt < 3) 1219/* Macro to determine height of label window */ 1220#define SLK_LINES(fmt) (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2)) 1221 1222#define MAX_SKEY(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC) 1223#define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC) 1224 1225extern NCURSES_EXPORT(int) _nc_ripoffline (int line, int (*init)(WINDOW *,int)); 1226 1227/* 1228 * Common error messages 1229 */ 1230#define MSG_NO_MEMORY "Out of memory" 1231#define MSG_NO_INPUTS "Premature EOF" 1232 1233#ifdef __cplusplus 1234} 1235#endif 1236 1237#endif /* CURSES_PRIV_H */ 1238