src/vim.h

   1 /* vi:set ts=8 sts=4 sw=4:
   2  *
   3  * VIM - Vi IMproved    by Bram Moolenaar
   4  *
   5  * Do ":help uganda"  in Vim to read copying and usage conditions.
   6  * Do ":help credits" in Vim to see a list of people who contributed.
   7  */
   8
   9 #ifndef VIM__H
  10 # define VIM__H
  11
  12 /* use fastcall for Borland, when compiling for Win32 (not for DOS16) */
  13 #if defined(__BORLANDC__) && defined(WIN32) && !defined(DEBUG)
  14 #if defined(FEAT_PERL) || \
  15     defined(FEAT_PYTHON) || \
  16     defined(FEAT_RUBY) || \
  17     defined(FEAT_TCL) || \
  18     defined(FEAT_MZSCHEME) || \
  19     defined(DYNAMIC_GETTEXT) || \
  20     defined(DYNAMIC_ICONV) || \
  21     defined(DYNAMIC_IME) || \
  22     defined(XPM)
  23   #pragma option -pc
  24 # else
  25   #pragma option -pr
  26 # endif
  27 #endif
  28
  29 /* ============ the header file puzzle (ca. 50-100 pieces) ========= */
  30
  31 #ifdef HAVE_CONFIG_H    /* GNU autoconf (or something else) was here */
  32 # include "auto/config.h"
  33 # define HAVE_PATHDEF
  34
  35 /*
  36  * Check if configure correctly managed to find sizeof(int).  If this failed,
  37  * it becomes zero.  This is likely a problem of not being able to run the
  38  * test program.  Other items from configure may also be wrong then!
  39  */
  40 # if (SIZEOF_INT == 0)
  41     Error: configure did not run properly.  Check auto/config.log.
  42 # endif
  43
  44 /*
  45  * Cygwin may have fchdir() in a newer release, but in most versions it
  46  * doesn't work well and avoiding it keeps the binary backward compatible.
  47  */
  48 # if defined(__CYGWIN32__) && defined(HAVE_FCHDIR)
  49 #  undef HAVE_FCHDIR
  50 # endif
  51 #endif
  52
  53 /* user ID of root is usually zero, but not for everybody */
  54 #ifdef __TANDEM
  55 # ifndef _TANDEM_SOURCE
  56 #  define _TANDEM_SOURCE
  57 # endif
  58 # include <floss.h>
  59 # define ROOT_UID 65535
  60 #else
  61 # define ROOT_UID 0
  62 #endif
  63
  64 #ifdef __EMX__          /* hand-edited config.h for OS/2 with EMX */
  65 # include "os_os2_cfg.h"
  66 #endif
  67
  68 /*
  69  * MACOS_CLASSIC compiling for MacOS prior to MacOS X
  70  * MACOS_X_UNIX  compiling for MacOS X (using os_unix.c)
  71  * MACOS_X       compiling for MacOS X (using os_unix.c)
  72  * MACOS         compiling for either one
  73  */
  74 #if defined(macintosh) && !defined(MACOS_CLASSIC)
  75 # define MACOS_CLASSIC
  76 #endif
  77 #if defined(MACOS_X_UNIX)
  78 # define MACOS_X
  79 # ifndef HAVE_CONFIG_H
  80 #  define UNIX
  81 # endif
  82 #endif
  83 #if defined(MACOS_X) || defined(MACOS_CLASSIC)
  84 #  define MACOS
  85 #endif
  86 #if defined(MACOS_X) && defined(MACOS_CLASSIC)
  87     Error: To compile for both MACOS X and Classic use a Classic Carbon
  88 #endif
  89 /* Unless made through the Makefile enforce GUI on Mac */
  90 #if defined(MACOS) && !defined(HAVE_CONFIG_H)
  91 # define FEAT_GUI_MAC
  92 #endif
  93
  94 #if defined(FEAT_GUI_MOTIF) \
  95     || defined(FEAT_GUI_GTK) \
  96     || defined(FEAT_GUI_ATHENA) \
  97     || defined(FEAT_GUI_MAC) \
  98     || defined(FEAT_GUI_MACVIM) \
  99     || defined(FEAT_GUI_W32) \
 100     || defined(FEAT_GUI_W16) \
 101     || defined(FEAT_GUI_PHOTON)
 102 # if !defined(FEAT_GUI) && !defined(NO_X11_INCLUDES)
 103 #  define FEAT_GUI
 104 # endif
 105 #endif
 106
 107 /* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */
 108 #if _MSC_VER >= 1400
 109 # define _CRT_SECURE_NO_DEPRECATE
 110 # define _CRT_NONSTDC_NO_DEPRECATE
 111 #endif
 112
 113 #if defined(FEAT_GUI_W32) || defined(FEAT_GUI_W16)
 114 # define FEAT_GUI_MSWIN
 115 #endif
 116 #if defined(WIN16) || defined(WIN32) || defined(_WIN64)
 117 # define MSWIN
 118 #endif
 119 /* Practically everything is common to both Win32 and Win64 */
 120 #if defined(WIN32) || defined(_WIN64)
 121 # define WIN3264
 122 #endif
 123
 124 /*
 125  * SIZEOF_INT is used in feature.h, and the system-specific included files
 126  * need items from feature.h.  Therefore define SIZEOF_INT here.
 127  */
 128 #ifdef WIN3264
 129 # define SIZEOF_INT 4
 130 #endif
 131 #ifdef MSDOS
 132 # ifdef DJGPP
 133 #  ifndef FEAT_GUI_GTK          /* avoid problems when generating prototypes */
 134 #   define SIZEOF_INT 4         /* 32 bit ints */
 135 #  endif
 136 #  define DOS32
 137 #  define FEAT_CLIPBOARD
 138 # else
 139 #  ifndef FEAT_GUI_GTK          /* avoid problems when generating prototypes */
 140 #   define SIZEOF_INT 2         /* 16 bit ints */
 141 #  endif
 142 #  define SMALL_MALLOC          /* 16 bit storage allocation */
 143 #  define DOS16
 144 # endif
 145 #endif
 146
 147 #ifdef AMIGA
 148   /* Be conservative about sizeof(int). It could be 4 too. */
 149 # ifndef FEAT_GUI_GTK   /* avoid problems when generating prototypes */
 150 #  ifdef __GNUC__
 151 #   define SIZEOF_INT   4
 152 #  else
 153 #   define SIZEOF_INT   2
 154 #  endif
 155 # endif
 156 #endif
 157 #ifdef MACOS
 158 # if defined(__POWERPC__) || defined(MACOS_X) || defined(__fourbyteints__) \
 159   || defined(__MRC__) || defined(__SC__) || defined(__APPLE_CC__)/* MPW Compilers */
 160 #  define SIZEOF_INT 4
 161 # else
 162 #  define SIZEOF_INT 2
 163 # endif
 164 #endif
 165 #ifdef RISCOS
 166 # define SIZEOF_INT 4
 167 #endif
 168
 169
 170 #include "feature.h"    /* #defines for optionals and features */
 171
 172 /* +x11 is only enabled when it's both available and wanted. */
 173 #if defined(HAVE_X11) && defined(WANT_X11)
 174 # define FEAT_X11
 175 #endif
 176
 177 #ifdef NO_X11_INCLUDES
 178     /* In os_mac_conv.c NO_X11_INCLUDES is defined to avoid X11 headers.
 179      * Disable all X11 related things to avoid conflicts. */
 180 # ifdef FEAT_X11
 181 #  undef FEAT_X11
 182 # endif
 183 # ifdef FEAT_GUI_X11
 184 #  undef FEAT_GUI_X11
 185 # endif
 186 # ifdef FEAT_XCLIPBOARD
 187 #  undef FEAT_XCLIPBOARD
 188 # endif
 189 # ifdef FEAT_GUI_MOTIF
 190 #  undef FEAT_GUI_MOTIF
 191 # endif
 192 # ifdef FEAT_GUI_ATHENA
 193 #  undef FEAT_GUI_ATHENA
 194 # endif
 195 # ifdef FEAT_GUI_GTK
 196 #  undef FEAT_GUI_GTK
 197 # endif
 198 # ifdef FEAT_BEVAL_TIP
 199 #  undef FEAT_BEVAL_TIP
 200 # endif
 201 # ifdef FEAT_XIM
 202 #  undef FEAT_XIM
 203 # endif
 204 # ifdef FEAT_CLIENTSERVER
 205 #  undef FEAT_CLIENTSERVER
 206 # endif
 207 #endif
 208
 209 /* The Mac conversion stuff doesn't work under X11. */
 210 #if defined(FEAT_MBYTE) && defined(MACOS_X)
 211 # define MACOS_CONVERT
 212 #endif
 213
 214 /* Can't use "PACKAGE" here, conflicts with a Perl include file. */
 215 #ifndef VIMPACKAGE
 216 # define VIMPACKAGE     "vim"
 217 #endif
 218
 219 /*
 220  * Find out if function definitions should include argument types
 221  */
 222 #ifdef AZTEC_C
 223 # include <functions.h>
 224 # define __ARGS(x)  x
 225 #endif
 226
 227 #ifdef SASC
 228 # include <clib/exec_protos.h>
 229 # define __ARGS(x)  x
 230 #endif
 231
 232 #ifdef _DCC
 233 # include <clib/exec_protos.h>
 234 # define __ARGS(x)  x
 235 #endif
 236
 237 #ifdef __TURBOC__
 238 # define __ARGS(x) x
 239 #endif
 240
 241 #ifdef __BEOS__
 242 # include "os_beos.h"
 243 # define __ARGS(x)  x
 244 #endif
 245
 246 #if (defined(UNIX) || defined(__EMX__) || defined(VMS)) \
 247         && (!defined(MACOS_X) || defined(HAVE_CONFIG_H))
 248 # include "os_unix.h"       /* bring lots of system header files */
 249 #endif
 250
 251 #if defined(MACOS) && (defined(__MRC__) || defined(__SC__))
 252    /* Apple's Compilers support prototypes */
 253 # define __ARGS(x) x
 254 #endif
 255 #ifndef __ARGS
 256 # if defined(__STDC__) || defined(__GNUC__) || defined(WIN3264)
 257 #  define __ARGS(x) x
 258 # else
 259 #  define __ARGS(x) ()
 260 # endif
 261 #endif
 262
 263 /* __ARGS and __PARMS are the same thing. */
 264 #ifndef __PARMS
 265 # define __PARMS(x) __ARGS(x)
 266 #endif
 267
 268 /* Mark unused function arguments with UNUSED, so that gcc -Wunused-parameter
 269  * can be used to check for mistakes. */
 270 #ifdef HAVE_ATTRIBUTE_UNUSED
 271 # define UNUSED __attribute__((unused))
 272 #else
 273 # define UNUSED
 274 #endif
 275
 276 /* if we're compiling in C++ (currently only KVim), the system
 277  * headers must have the correct prototypes or nothing will build.
 278  * conversely, our prototypes might clash due to throw() specifiers and
 279  * cause compilation failures even though the headers are correct.  For
 280  * a concrete example, gcc-3.2 enforces exception specifications, and
 281  * glibc-2.2.5 has them in their system headers.
 282  */
 283 #if !defined(__cplusplus) && defined(UNIX) \
 284   && !defined(MACOS_X) /* MACOS_X doesn't yet support osdef.h */
 285 # include "auto/osdef.h"        /* bring missing declarations in */
 286 #endif
 287
 288 #ifdef __EMX__
 289 # define    getcwd  _getcwd2
 290 # define    chdir   _chdir2
 291 # undef     CHECK_INODE
 292 #endif
 293
 294 #ifdef AMIGA
 295 # include "os_amiga.h"
 296 #endif
 297
 298 #ifdef MSDOS
 299 # include "os_msdos.h"
 300 #endif
 301
 302 #ifdef WIN16
 303 # include "os_win16.h"
 304 #endif
 305
 306 #ifdef WIN3264
 307 # include "os_win32.h"
 308 #endif
 309
 310 #ifdef __MINT__
 311 # include "os_mint.h"
 312 #endif
 313
 314 #if defined(MACOS)
 315 # if defined(__MRC__) || defined(__SC__) /* MPW Compilers */
 316 #  define HAVE_SETENV
 317 # endif
 318 # include "os_mac.h"
 319 #endif
 320
 321 #ifdef RISCOS
 322 # include "os_riscos.h"
 323 #endif
 324
 325 #ifdef __QNX__
 326 # include "os_qnx.h"
 327 #endif
 328
 329 #ifdef FEAT_SUN_WORKSHOP
 330 # include "workshop.h"
 331 #endif
 332
 333 #ifdef X_LOCALE
 334 # include <X11/Xlocale.h>
 335 #else
 336 # ifdef HAVE_LOCALE_H
 337 #  include <locale.h>
 338 # endif
 339 #endif
 340
 341 /*
 342  * Maximum length of a path (for non-unix systems) Make it a bit long, to stay
 343  * on the safe side.  But not too long to put on the stack.
 344  */
 345 #ifndef MAXPATHL
 346 # ifdef MAXPATHLEN
 347 #  define MAXPATHL  MAXPATHLEN
 348 # else
 349 #  define MAXPATHL  256
 350 # endif
 351 #endif
 352 #ifdef BACKSLASH_IN_FILENAME
 353 # define PATH_ESC_CHARS ((char_u *)" \t\n*?[{`%#'\"|!<")
 354 #else
 355 # ifdef VMS
 356     /* VMS allows a lot of characters in the file name */
 357 #  define PATH_ESC_CHARS ((char_u *)" \t\n*?{`\\%#'\"|!")
 358 #  define SHELL_ESC_CHARS ((char_u *)" \t\n*?{`\\%#'|!()&")
 359 # else
 360 #  define PATH_ESC_CHARS ((char_u *)" \t\n*?[{`$\\%#'\"|!<")
 361 #  define SHELL_ESC_CHARS ((char_u *)" \t\n*?[{`$\\%#'\"|!<>();&")
 362 # endif
 363 #endif
 364
 365 #define NUMBUFLEN 30        /* length of a buffer to store a number in ASCII */
 366
 367 /*
 368  * Shorthand for unsigned variables. Many systems, but not all, have u_char
 369  * already defined, so we use char_u to avoid trouble.
 370  */
 371 typedef unsigned char   char_u;
 372 typedef unsigned short  short_u;
 373 typedef unsigned int    int_u;
 374 /* Make sure long_u is big enough to hold a pointer.
 375  * On Win64, longs are 32 bits and pointers are 64 bits.
 376  * For printf() and scanf(), we need to take care of long_u specifically. */
 377 #ifdef _WIN64
 378 typedef unsigned __int64        long_u;
 379 typedef          __int64        long_i;
 380 # define SCANF_HEX_LONG_U       "%Ix"
 381 # define SCANF_DECIMAL_LONG_U   "%Iu"
 382 # define PRINTF_HEX_LONG_U      "0x%Ix"
 383 #else
 384   /* Microsoft-specific. The __w64 keyword should be specified on any typedefs
 385    * that change size between 32-bit and 64-bit platforms.  For any such type,
 386    * __w64 should appear only on the 32-bit definition of the typedef.
 387    * Define __w64 as an empty token for everything but MSVC 7.x or later.
 388    */
 389 # if !defined(_MSC_VER) || (_MSC_VER < 1300)
 390 #  define __w64
 391 # endif
 392 typedef unsigned long __w64     long_u;
 393 typedef          long __w64     long_i;
 394 # define SCANF_HEX_LONG_U       "%lx"
 395 # define SCANF_DECIMAL_LONG_U   "%lu"
 396 # define PRINTF_HEX_LONG_U      "0x%lx"
 397 #endif
 398 #define PRINTF_DECIMAL_LONG_U SCANF_DECIMAL_LONG_U
 399
 400 /*
 401  * The characters and attributes cached for the screen.
 402  */
 403 typedef char_u schar_T;
 404 #ifdef FEAT_SYN_HL
 405 typedef unsigned short sattr_T;
 406 # define MAX_TYPENR 65535
 407 #else
 408 typedef unsigned char sattr_T;
 409 # define MAX_TYPENR 255
 410 #endif
 411
 412 /*
 413  * The u8char_T can hold one decoded UTF-8 character.
 414  * We normally use 32 bits now, since some Asian characters don't fit in 16
 415  * bits.  u8char_T is only used for displaying, it could be 16 bits to save
 416  * memory.
 417  */
 418 #ifdef FEAT_MBYTE
 419 # ifdef UNICODE16
 420 typedef unsigned short u8char_T;    /* short should be 16 bits */
 421 # else
 422 #  if SIZEOF_INT >= 4
 423 typedef unsigned int u8char_T;      /* int is 32 bits */
 424 #  else
 425 typedef unsigned long u8char_T;     /* long should be 32 bits or more */
 426 #  endif
 427 # endif
 428 #endif
 429
 430 #ifndef UNIX                /* For Unix this is included in os_unix.h */
 431 # include <stdio.h>
 432 # include <ctype.h>
 433 #endif
 434
 435 #include "ascii.h"
 436 #include "keymap.h"
 437 #include "term.h"
 438 #include "macros.h"
 439
 440 #ifdef LATTICE
 441 # include <sys/types.h>
 442 # include <sys/stat.h>
 443 #endif
 444 #ifdef _DCC
 445 # include <sys/stat.h>
 446 #endif
 447 #if defined(MSDOS) || defined(MSWIN)
 448 # include <sys/stat.h>
 449 #endif
 450
 451 /*
 452  * Allow other (non-unix) systems to configure themselves now
 453  * These are also in os_unix.h, because osdef.sh needs them there.
 454  */
 455 #ifndef UNIX
 456 /* Note: Some systems need both string.h and strings.h (Savage).  If the
 457  * system can't handle this, define NO_STRINGS_WITH_STRING_H. */
 458 # ifdef HAVE_STRING_H
 459 #  include <string.h>
 460 # endif
 461 # if defined(HAVE_STRINGS_H) && !defined(NO_STRINGS_WITH_STRING_H)
 462 #   include <strings.h>
 463 # endif
 464 # ifdef HAVE_STAT_H
 465 #  include <stat.h>
 466 # endif
 467 # ifdef HAVE_STDLIB_H
 468 #  include <stdlib.h>
 469 # endif
 470 #endif /* NON-UNIX */
 471
 472 #include <assert.h>
 473
 474 #ifdef HAVE_WCTYPE_H
 475 # include <wctype.h>
 476 #endif
 477 #ifdef HAVE_STDARG_H
 478 # include <stdarg.h>
 479 #endif
 480
 481 /* ================ end of the header file puzzle =============== */
 482
 483 /*
 484  * For dynamically loaded imm library. Currently, only for Win32.
 485  */
 486 #ifdef DYNAMIC_IME
 487 # ifndef FEAT_MBYTE_IME
 488 #  define FEAT_MBYTE_IME
 489 # endif
 490 #endif
 491
 492 /*
 493  * Check input method control.
 494  */
 495 #if defined(FEAT_XIM) \
 496     || (defined(FEAT_GUI) && (defined(FEAT_MBYTE_IME) || defined(GLOBAL_IME))) \
 497     || (defined(FEAT_GUI_MAC) && defined(FEAT_MBYTE)) \
 498     || (defined(FEAT_GUI_MACVIM) && defined(FEAT_MBYTE))
 499 # define USE_IM_CONTROL
 500 #endif
 501
 502 /*
 503  * For dynamically loaded gettext library.  Currently, only for Win32.
 504  */
 505 #ifdef DYNAMIC_GETTEXT
 506 # ifndef FEAT_GETTEXT
 507 #  define FEAT_GETTEXT
 508 # endif
 509 /* These are in os_win32.c */
 510 extern char *(*dyn_libintl_gettext)(const char *msgid);
 511 extern char *(*dyn_libintl_bindtextdomain)(const char *domainname, const char *dirname);
 512 extern char *(*dyn_libintl_bind_textdomain_codeset)(const char *domainname, const char *codeset);
 513 extern char *(*dyn_libintl_textdomain)(const char *domainname);
 514 #endif
 515
 516
 517 /*
 518  * The _() stuff is for using gettext().  It is a no-op when libintl.h is not
 519  * found or the +multilang feature is disabled.
 520  */
 521 #ifdef FEAT_GETTEXT
 522 # ifdef DYNAMIC_GETTEXT
 523 #  define _(x) (*dyn_libintl_gettext)((char *)(x))
 524 #  define N_(x) x
 525 #  define bindtextdomain(domain, dir) (*dyn_libintl_bindtextdomain)((domain), (dir))
 526 #  define bind_textdomain_codeset(domain, codeset) (*dyn_libintl_bind_textdomain_codeset)((domain), (codeset))
 527 #  if !defined(HAVE_BIND_TEXTDOMAIN_CODESET)
 528 #   define HAVE_BIND_TEXTDOMAIN_CODESET 1
 529 #  endif
 530 #  define textdomain(domain) (*dyn_libintl_textdomain)(domain)
 531 # else
 532 #  include <libintl.h>
 533 #  define _(x) gettext((char *)(x))
 534 #  ifdef gettext_noop
 535 #   define N_(x) gettext_noop(x)
 536 #  else
 537 #   define N_(x) x
 538 #  endif
 539 # endif
 540 #else
 541 # define _(x) ((char *)(x))
 542 # define N_(x) x
 543 # ifdef bindtextdomain
 544 #  undef bindtextdomain
 545 # endif
 546 # define bindtextdomain(x, y) /* empty */
 547 # ifdef bind_textdomain_codeset
 548 #  undef bind_textdomain_codeset
 549 # endif
 550 # define bind_textdomain_codeset(x, y) /* empty */
 551 # ifdef textdomain
 552 #  undef textdomain
 553 # endif
 554 # define textdomain(x) /* empty */
 555 #endif
 556
 557 /*
 558  * flags for update_screen()
 559  * The higher the value, the higher the priority
 560  */
 561 #define VALID                   10  /* buffer not changed, or changes marked
 562                                        with b_mod_* */
 563 #define INVERTED                20  /* redisplay inverted part that changed */
 564 #define INVERTED_ALL            25  /* redisplay whole inverted part */
 565 #define REDRAW_TOP              30  /* display first w_upd_rows screen lines */
 566 #define SOME_VALID              35  /* like NOT_VALID but may scroll */
 567 #define NOT_VALID               40  /* buffer needs complete redraw */
 568 #define CLEAR                   50  /* screen messed up, clear it */
 569
 570 /*
 571  * Flags for w_valid.
 572  * These are set when something in a window structure becomes invalid, except
 573  * when the cursor is moved.  Call check_cursor_moved() before testing one of
 574  * the flags.
 575  * These are reset when that thing has been updated and is valid again.
 576  *
 577  * Every function that invalidates one of these must call one of the
 578  * invalidate_* functions.
 579  *
 580  * w_valid is supposed to be used only in screen.c.  From other files, use the
 581  * functions that set or reset the flags.
 582  *
 583  * VALID_BOTLINE    VALID_BOTLINE_AP
 584  *     on               on              w_botline valid
 585  *     off              on              w_botline approximated
 586  *     off              off             w_botline not valid
 587  *     on               off             not possible
 588  */
 589 #define VALID_WROW      0x01    /* w_wrow (window row) is valid */
 590 #define VALID_WCOL      0x02    /* w_wcol (window col) is valid */
 591 #define VALID_VIRTCOL   0x04    /* w_virtcol (file col) is valid */
 592 #define VALID_CHEIGHT   0x08    /* w_cline_height and w_cline_folded valid */
 593 #define VALID_CROW      0x10    /* w_cline_row is valid */
 594 #define VALID_BOTLINE   0x20    /* w_botine and w_empty_rows are valid */
 595 #define VALID_BOTLINE_AP 0x40   /* w_botine is approximated */
 596 #define VALID_TOPLINE   0x80    /* w_topline is valid (for cursor position) */
 597
 598 /*
 599  * Terminal highlighting attribute bits.
 600  * Attibutes above HL_ALL are used for syntax highlighting.
 601  */
 602 #define HL_NORMAL               0x00
 603 #define HL_INVERSE              0x01
 604 #define HL_BOLD                 0x02
 605 #define HL_ITALIC               0x04
 606 #define HL_UNDERLINE            0x08
 607 #define HL_UNDERCURL            0x10
 608 #define HL_STANDOUT             0x20
 609 #define HL_ALL                  0x3f
 610
 611 /* special attribute addition: Put message in history */
 612 #define MSG_HIST                0x1000
 613
 614 /*
 615  * values for State
 616  *
 617  * The lower bits up to 0x20 are used to distinguish normal/visual/op_pending
 618  * and cmdline/insert+replace mode.  This is used for mapping.  If none of
 619  * these bits are set, no mapping is done.
 620  * The upper bits are used to distinguish between other states.
 621  */
 622 #define NORMAL          0x01    /* Normal mode, command expected */
 623 #define VISUAL          0x02    /* Visual mode - use get_real_state() */
 624 #define OP_PENDING      0x04    /* Normal mode, operator is pending - use
 625                                    get_real_state() */
 626 #define CMDLINE         0x08    /* Editing command line */
 627 #define INSERT          0x10    /* Insert mode */
 628 #define LANGMAP         0x20    /* Language mapping, can be combined with
 629                                    INSERT and CMDLINE */
 630
 631 #define REPLACE_FLAG    0x40    /* Replace mode flag */
 632 #define REPLACE         (REPLACE_FLAG + INSERT)
 633 #ifdef FEAT_VREPLACE
 634 # define VREPLACE_FLAG  0x80    /* Virtual-replace mode flag */
 635 # define VREPLACE       (REPLACE_FLAG + VREPLACE_FLAG + INSERT)
 636 #endif
 637 #define LREPLACE        (REPLACE_FLAG + LANGMAP)
 638
 639 #define NORMAL_BUSY     (0x100 + NORMAL) /* Normal mode, busy with a command */
 640 #define HITRETURN       (0x200 + NORMAL) /* waiting for return or command */
 641 #define ASKMORE         0x300   /* Asking if you want --more-- */
 642 #define SETWSIZE        0x400   /* window size has changed */
 643 #define ABBREV          0x500   /* abbreviation instead of mapping */
 644 #define EXTERNCMD       0x600   /* executing an external command */
 645 #define SHOWMATCH       (0x700 + INSERT) /* show matching paren */
 646 #define CONFIRM         0x800   /* ":confirm" prompt */
 647 #define SELECTMODE      0x1000  /* Select mode, only for mappings */
 648
 649 #define MAP_ALL_MODES   (0x3f | SELECTMODE)     /* all mode bits used for
 650                                                  * mapping */
 651
 652 /* directions */
 653 #define FORWARD                 1
 654 #define BACKWARD                (-1)
 655 #define FORWARD_FILE            3
 656 #define BACKWARD_FILE           (-3)
 657
 658 /* return values for functions */
 659 #if !(defined(OK) && (OK == 1))
 660 /* OK already defined to 1 in MacOS X curses, skip this */
 661 # define OK                     1
 662 #endif
 663 #define FAIL                    0
 664 #define NOTDONE                 2   /* not OK or FAIL but skipped */
 665
 666 /* flags for b_flags */
 667 #define BF_RECOVERED    0x01    /* buffer has been recovered */
 668 #define BF_CHECK_RO     0x02    /* need to check readonly when loading file
 669                                    into buffer (set by ":e", may be reset by
 670                                    ":buf" */
 671 #define BF_NEVERLOADED  0x04    /* file has never been loaded into buffer,
 672                                    many variables still need to be set */
 673 #define BF_NOTEDITED    0x08    /* Set when file name is changed after
 674                                    starting to edit, reset when file is
 675                                    written out. */
 676 #define BF_NEW          0x10    /* file didn't exist when editing started */
 677 #define BF_NEW_W        0x20    /* Warned for BF_NEW and file created */
 678 #define BF_READERR      0x40    /* got errors while reading the file */
 679 #define BF_DUMMY        0x80    /* dummy buffer, only used internally */
 680 #define BF_PRESERVED    0x100   /* ":preserve" was used */
 681
 682 /* Mask to check for flags that prevent normal writing */
 683 #define BF_WRITE_MASK   (BF_NOTEDITED + BF_NEW + BF_READERR)
 684
 685 /*
 686  * values for xp_context when doing command line completion
 687  */
 688 #define EXPAND_UNSUCCESSFUL     (-2)
 689 #define EXPAND_OK               (-1)
 690 #define EXPAND_NOTHING          0
 691 #define EXPAND_COMMANDS         1
 692 #define EXPAND_FILES            2
 693 #define EXPAND_DIRECTORIES      3
 694 #define EXPAND_SETTINGS         4
 695 #define EXPAND_BOOL_SETTINGS    5
 696 #define EXPAND_TAGS             6
 697 #define EXPAND_OLD_SETTING      7
 698 #define EXPAND_HELP             8
 699 #define EXPAND_BUFFERS          9
 700 #define EXPAND_EVENTS           10
 701 #define EXPAND_MENUS            11
 702 #define EXPAND_SYNTAX           12
 703 #define EXPAND_HIGHLIGHT        13
 704 #define EXPAND_AUGROUP          14
 705 #define EXPAND_USER_VARS        15
 706 #define EXPAND_MAPPINGS         16
 707 #define EXPAND_TAGS_LISTFILES   17
 708 #define EXPAND_FUNCTIONS        18
 709 #define EXPAND_USER_FUNC        19
 710 #define EXPAND_EXPRESSION       20
 711 #define EXPAND_MENUNAMES        21
 712 #define EXPAND_USER_COMMANDS    22
 713 #define EXPAND_USER_CMD_FLAGS   23
 714 #define EXPAND_USER_NARGS       24
 715 #define EXPAND_USER_COMPLETE    25
 716 #define EXPAND_ENV_VARS         26
 717 #define EXPAND_LANGUAGE         27
 718 #define EXPAND_COLORS           28
 719 #define EXPAND_COMPILER         29
 720 #define EXPAND_USER_DEFINED     30
 721 #define EXPAND_USER_LIST        31
 722 #define EXPAND_SHELLCMD         32
 723 #define EXPAND_CSCOPE           33
 724 #define EXPAND_SIGN             34
 725 #define EXPAND_PROFILE          35
 726 #define EXPAND_MACACTION        36
 727
 728 /* Values for exmode_active (0 is no exmode) */
 729 #define EXMODE_NORMAL           1
 730 #define EXMODE_VIM              2
 731
 732 /* Values for nextwild() and ExpandOne().  See ExpandOne() for meaning. */
 733 #define WILD_FREE               1
 734 #define WILD_EXPAND_FREE        2
 735 #define WILD_EXPAND_KEEP        3
 736 #define WILD_NEXT               4
 737 #define WILD_PREV               5
 738 #define WILD_ALL                6
 739 #define WILD_LONGEST            7
 740
 741 #define WILD_LIST_NOTFOUND      1
 742 #define WILD_HOME_REPLACE       2
 743 #define WILD_USE_NL             4
 744 #define WILD_NO_BEEP            8
 745 #define WILD_ADD_SLASH          16
 746 #define WILD_KEEP_ALL           32
 747 #define WILD_SILENT             64
 748 #define WILD_ESCAPE             128
 749
 750 /* Flags for expand_wildcards() */
 751 #define EW_DIR          0x01    /* include directory names */
 752 #define EW_FILE         0x02    /* include file names */
 753 #define EW_NOTFOUND     0x04    /* include not found names */
 754 #define EW_ADDSLASH     0x08    /* append slash to directory name */
 755 #define EW_KEEPALL      0x10    /* keep all matches */
 756 #define EW_SILENT       0x20    /* don't print "1 returned" from shell */
 757 #define EW_EXEC         0x40    /* executable files */
 758 /* Note: mostly EW_NOTFOUND and EW_SILENT are mutually exclusive: EW_NOTFOUND
 759  * is used when executing commands and EW_SILENT for interactive expanding. */
 760
 761 /* Flags for find_file_*() functions. */
 762 #define FINDFILE_FILE   0       /* only files */
 763 #define FINDFILE_DIR    1       /* only directories */
 764 #define FINDFILE_BOTH   2       /* files and directories */
 765
 766 #ifdef FEAT_VERTSPLIT
 767 # define W_WINCOL(wp)   (wp->w_wincol)
 768 # define W_WIDTH(wp)    (wp->w_width)
 769 # define W_ENDCOL(wp)   (wp->w_wincol + wp->w_width)
 770 # define W_VSEP_WIDTH(wp) (wp->w_vsep_width)
 771 #else
 772 # define W_WINCOL(wp)   0
 773 # define W_WIDTH(wp)    Columns
 774 # define W_ENDCOL(wp)   Columns
 775 # define W_VSEP_WIDTH(wp) 0
 776 #endif
 777 #ifdef FEAT_WINDOWS
 778 # define W_STATUS_HEIGHT(wp) (wp->w_status_height)
 779 # define W_WINROW(wp)   (wp->w_winrow)
 780 #else
 781 # define W_STATUS_HEIGHT(wp) 0
 782 # define W_WINROW(wp)   0
 783 #endif
 784
 785 #ifdef NO_EXPANDPATH
 786 # define gen_expand_wildcards mch_expand_wildcards
 787 #endif
 788
 789 /* Values for the find_pattern_in_path() function args 'type' and 'action': */
 790 #define FIND_ANY        1
 791 #define FIND_DEFINE     2
 792 #define CHECK_PATH      3
 793
 794 #define ACTION_SHOW     1
 795 #define ACTION_GOTO     2
 796 #define ACTION_SPLIT    3
 797 #define ACTION_SHOW_ALL 4
 798 #ifdef FEAT_INS_EXPAND
 799 # define ACTION_EXPAND  5
 800 #endif
 801
 802 #ifdef FEAT_SYN_HL
 803 # define SST_MIN_ENTRIES 150    /* minimal size for state stack array */
 804 # ifdef FEAT_GUI_W16
 805 #  define SST_MAX_ENTRIES 500   /* (only up to 64K blocks) */
 806 # else
 807 #  define SST_MAX_ENTRIES 1000  /* maximal size for state stack array */
 808 # endif
 809 # define SST_FIX_STATES  7      /* size of sst_stack[]. */
 810 # define SST_DIST        16     /* normal distance between entries */
 811 #endif
 812
 813 /* Values for 'options' argument in do_search() and searchit() */
 814 #define SEARCH_REV    0x01  /* go in reverse of previous dir. */
 815 #define SEARCH_ECHO   0x02  /* echo the search command and handle options */
 816 #define SEARCH_MSG    0x0c  /* give messages (yes, it's not 0x04) */
 817 #define SEARCH_NFMSG  0x08  /* give all messages except not found */
 818 #define SEARCH_OPT    0x10  /* interpret optional flags */
 819 #define SEARCH_HIS    0x20  /* put search pattern in history */
 820 #define SEARCH_END    0x40  /* put cursor at end of match */
 821 #define SEARCH_NOOF   0x80  /* don't add offset to position */
 822 #define SEARCH_START 0x100  /* start search without col offset */
 823 #define SEARCH_MARK  0x200  /* set previous context mark */
 824 #define SEARCH_KEEP  0x400  /* keep previous search pattern */
 825 #define SEARCH_PEEK  0x800  /* peek for typed char, cancel search */
 826
 827 /* Values for find_ident_under_cursor() */
 828 #define FIND_IDENT      1       /* find identifier (word) */
 829 #define FIND_STRING     2       /* find any string (WORD) */
 830 #define FIND_EVAL       4       /* include "->", "[]" and "." */
 831
 832 /* Values for file_name_in_line() */
 833 #define FNAME_MESS      1       /* give error message */
 834 #define FNAME_EXP       2       /* expand to path */
 835 #define FNAME_HYP       4       /* check for hypertext link */
 836 #define FNAME_INCL      8       /* apply 'includeexpr' */
 837 #define FNAME_REL       16      /* ".." and "./" are relative to the (current)
 838                                    file instead of the current directory */
 839
 840 /* Values for buflist_getfile() */
 841 #define GETF_SETMARK    0x01    /* set pcmark before jumping */
 842 #define GETF_ALT        0x02    /* jumping to alternate file (not buf num) */
 843 #define GETF_SWITCH     0x04    /* respect 'switchbuf' settings when jumping */
 844
 845 /* Values for buflist_new() flags */
 846 #define BLN_CURBUF      1       /* May re-use curbuf for new buffer */
 847 #define BLN_LISTED      2       /* Put new buffer in buffer list */
 848 #define BLN_DUMMY       4       /* Allocating dummy buffer */
 849
 850 /* Values for in_cinkeys() */
 851 #define KEY_OPEN_FORW   0x101
 852 #define KEY_OPEN_BACK   0x102
 853 #define KEY_COMPLETE    0x103   /* end of completion */
 854
 855 /* Values for "noremap" argument of ins_typebuf().  Also used for
 856  * map->m_noremap and menu->noremap[]. */
 857 #define REMAP_YES       0       /* allow remapping */
 858 #define REMAP_NONE      -1      /* no remapping */
 859 #define REMAP_SCRIPT    -2      /* remap script-local mappings only */
 860 #define REMAP_SKIP      -3      /* no remapping for first char */
 861
 862 /* Values for mch_call_shell() second argument */
 863 #define SHELL_FILTER    1       /* filtering text */
 864 #define SHELL_EXPAND    2       /* expanding wildcards */
 865 #define SHELL_COOKED    4       /* set term to cooked mode */
 866 #define SHELL_DOOUT     8       /* redirecting output */
 867 #define SHELL_SILENT    16      /* don't print error returned by command */
 868 #define SHELL_READ      32      /* read lines and insert into buffer */
 869 #define SHELL_WRITE     64      /* write lines from buffer */
 870
 871 /* Values returned by mch_nodetype() */
 872 #define NODE_NORMAL     0       /* file or directory, check with mch_isdir()*/
 873 #define NODE_WRITABLE   1       /* something we can write to (character
 874                                    device, fifo, socket, ..) */
 875 #define NODE_OTHER      2       /* non-writable thing (e.g., block device) */
 876
 877 /* Values for readfile() flags */
 878 #define READ_NEW        0x01    /* read a file into a new buffer */
 879 #define READ_FILTER     0x02    /* read filter output */
 880 #define READ_STDIN      0x04    /* read from stdin */
 881 #define READ_BUFFER     0x08    /* read from curbuf (converting stdin) */
 882 #define READ_DUMMY      0x10    /* reading into a dummy buffer */
 883
 884 /* Values for change_indent() */
 885 #define INDENT_SET      1       /* set indent */
 886 #define INDENT_INC      2       /* increase indent */
 887 #define INDENT_DEC      3       /* decrease indent */
 888
 889 /* Values for flags argument for findmatchlimit() */
 890 #define FM_BACKWARD     0x01    /* search backwards */
 891 #define FM_FORWARD      0x02    /* search forwards */
 892 #define FM_BLOCKSTOP    0x04    /* stop at start/end of block */
 893 #define FM_SKIPCOMM     0x08    /* skip comments */
 894
 895 /* Values for action argument for do_buffer() */
 896 #define DOBUF_GOTO      0       /* go to specified buffer */
 897 #define DOBUF_SPLIT     1       /* split window and go to specified buffer */
 898 #define DOBUF_UNLOAD    2       /* unload specified buffer(s) */
 899 #define DOBUF_DEL       3       /* delete specified buffer(s) from buflist */
 900 #define DOBUF_WIPE      4       /* delete specified buffer(s) really */
 901
 902 /* Values for start argument for do_buffer() */
 903 #define DOBUF_CURRENT   0       /* "count" buffer from current buffer */
 904 #define DOBUF_FIRST     1       /* "count" buffer from first buffer */
 905 #define DOBUF_LAST      2       /* "count" buffer from last buffer */
 906 #define DOBUF_MOD       3       /* "count" mod. buffer from current buffer */
 907
 908 /* Values for sub_cmd and which_pat argument for search_regcomp() */
 909 /* Also used for which_pat argument for searchit() */
 910 #define RE_SEARCH       0       /* save/use pat in/from search_pattern */
 911 #define RE_SUBST        1       /* save/use pat in/from subst_pattern */
 912 #define RE_BOTH         2       /* save pat in both patterns */
 913 #define RE_LAST         2       /* use last used pattern if "pat" is NULL */
 914
 915 /* Second argument for vim_regcomp(). */
 916 #define RE_MAGIC        1       /* 'magic' option */
 917 #define RE_STRING       2       /* match in string instead of buffer text */
 918 #define RE_STRICT       4       /* don't allow [abc] without ] */
 919
 920 #ifdef FEAT_SYN_HL
 921 /* values for reg_do_extmatch */
 922 # define REX_SET        1       /* to allow \z\(...\), */
 923 # define REX_USE        2       /* to allow \z\1 et al. */
 924 #endif
 925
 926 /* Return values for fullpathcmp() */
 927 /* Note: can use (fullpathcmp() & FPC_SAME) to check for equal files */
 928 #define FPC_SAME        1       /* both exist and are the same file. */
 929 #define FPC_DIFF        2       /* both exist and are different files. */
 930 #define FPC_NOTX        4       /* both don't exist. */
 931 #define FPC_DIFFX       6       /* one of them doesn't exist. */
 932 #define FPC_SAMEX       7       /* both don't exist and file names are same. */
 933
 934 /* flags for do_ecmd() */
 935 #define ECMD_HIDE       0x01    /* don't free the current buffer */
 936 #define ECMD_SET_HELP   0x02    /* set b_help flag of (new) buffer before
 937                                    opening file */
 938 #define ECMD_OLDBUF     0x04    /* use existing buffer if it exists */
 939 #define ECMD_FORCEIT    0x08    /* ! used in Ex command */
 940 #define ECMD_ADDBUF     0x10    /* don't edit, just add to buffer list */
 941
 942 /* for lnum argument in do_ecmd() */
 943 #define ECMD_LASTL      (linenr_T)0     /* use last position in loaded file */
 944 #define ECMD_LAST       (linenr_T)-1    /* use last position in all files */
 945 #define ECMD_ONE        (linenr_T)1     /* use first line */
 946
 947 /* flags for do_cmdline() */
 948 #define DOCMD_VERBOSE   0x01    /* included command in error message */
 949 #define DOCMD_NOWAIT    0x02    /* don't call wait_return() and friends */
 950 #define DOCMD_REPEAT    0x04    /* repeat exec. until getline() returns NULL */
 951 #define DOCMD_KEYTYPED  0x08    /* don't reset KeyTyped */
 952 #define DOCMD_EXCRESET  0x10    /* reset exception environment (for debugging)*/
 953 #define DOCMD_KEEPLINE  0x20    /* keep typed line for repeating with "." */
 954
 955 /* flags for beginline() */
 956 #define BL_WHITE        1       /* cursor on first non-white in the line */
 957 #define BL_SOL          2       /* use 'sol' option */
 958 #define BL_FIX          4       /* don't leave cursor on a NUL */
 959
 960 /* flags for mf_sync() */
 961 #define MFS_ALL         1       /* also sync blocks with negative numbers */
 962 #define MFS_STOP        2       /* stop syncing when a character is available */
 963 #define MFS_FLUSH       4       /* flushed file to disk */
 964 #define MFS_ZERO        8       /* only write block 0 */
 965
 966 /* flags for buf_copy_options() */
 967 #define BCO_ENTER       1       /* going to enter the buffer */
 968 #define BCO_ALWAYS      2       /* always copy the options */
 969 #define BCO_NOHELP      4       /* don't touch the help related options */
 970
 971 /* flags for do_put() */
 972 #define PUT_FIXINDENT   1       /* make indent look nice */
 973 #define PUT_CURSEND     2       /* leave cursor after end of new text */
 974 #define PUT_CURSLINE    4       /* leave cursor on last line of new text */
 975 #define PUT_LINE        8       /* put register as lines */
 976 #define PUT_LINE_SPLIT  16      /* split line for linewise register */
 977 #define PUT_LINE_FORWARD 32     /* put linewise register below Visual sel. */
 978
 979 /* flags for set_indent() */
 980 #define SIN_CHANGED     1       /* call changed_bytes() when line changed */
 981 #define SIN_INSERT      2       /* insert indent before existing text */
 982 #define SIN_UNDO        4       /* save line for undo before changing it */
 983
 984 /* flags for insertchar() */
 985 #define INSCHAR_FORMAT  1       /* force formatting */
 986 #define INSCHAR_DO_COM  2       /* format comments */
 987 #define INSCHAR_CTRLV   4       /* char typed just after CTRL-V */
 988 #define INSCHAR_NO_FEX  8       /* don't use 'formatexpr' */
 989
 990 /* flags for open_line() */
 991 #define OPENLINE_DELSPACES  1   /* delete spaces after cursor */
 992 #define OPENLINE_DO_COM     2   /* format comments */
 993 #define OPENLINE_KEEPTRAIL  4   /* keep trailing spaces */
 994 #define OPENLINE_MARKFIX    8   /* fix mark positions */
 995
 996 /*
 997  * There are four history tables:
 998  */
 999 #define HIST_CMD        0       /* colon commands */
1000 #define HIST_SEARCH     1       /* search commands */
1001 #define HIST_EXPR       2       /* expressions (from entering = register) */
1002 #define HIST_INPUT      3       /* input() lines */
1003 #define HIST_DEBUG      4       /* debug commands */
1004 #define HIST_COUNT      5       /* number of history tables */
1005
1006 /*
1007  * Flags for chartab[].
1008  */
1009 #define CT_CELL_MASK    0x07    /* mask: nr of display cells (1, 2 or 4) */
1010 #define CT_PRINT_CHAR   0x10    /* flag: set for printable chars */
1011 #define CT_ID_CHAR      0x20    /* flag: set for ID chars */
1012 #define CT_FNAME_CHAR   0x40    /* flag: set for file name chars */
1013
1014 /*
1015  * Values for do_tag().
1016  */
1017 #define DT_TAG          1       /* jump to newer position or same tag again */
1018 #define DT_POP          2       /* jump to older position */
1019 #define DT_NEXT         3       /* jump to next match of same tag */
1020 #define DT_PREV         4       /* jump to previous match of same tag */
1021 #define DT_FIRST        5       /* jump to first match of same tag */
1022 #define DT_LAST         6       /* jump to first match of same tag */
1023 #define DT_SELECT       7       /* jump to selection from list */
1024 #define DT_HELP         8       /* like DT_TAG, but no wildcards */
1025 #define DT_JUMP         9       /* jump to new tag or selection from list */
1026 #define DT_CSCOPE       10      /* cscope find command (like tjump) */
1027 #define DT_LTAG         11      /* tag using location list */
1028 #define DT_FREE         99      /* free cached matches */
1029
1030 /*
1031  * flags for find_tags().
1032  */
1033 #define TAG_HELP        1       /* only search for help tags */
1034 #define TAG_NAMES       2       /* only return name of tag */
1035 #define TAG_REGEXP      4       /* use tag pattern as regexp */
1036 #define TAG_NOIC        8       /* don't always ignore case */
1037 #ifdef FEAT_CSCOPE
1038 # define TAG_CSCOPE     16      /* cscope tag */
1039 #endif
1040 #define TAG_VERBOSE     32      /* message verbosity */
1041 #define TAG_INS_COMP    64      /* Currently doing insert completion */
1042 #define TAG_KEEP_LANG   128     /* keep current language */
1043
1044 #define TAG_MANY        300     /* When finding many tags (for completion),
1045                                    find up to this many tags */
1046
1047 /*
1048  * Types of dialogs passed to do_vim_dialog().
1049  */
1050 #define VIM_GENERIC     0
1051 #define VIM_ERROR       1
1052 #define VIM_WARNING     2
1053 #define VIM_INFO        3
1054 #define VIM_QUESTION    4
1055 #define VIM_LAST_TYPE   4       /* sentinel value */
1056
1057 /*
1058  * Return values for functions like gui_yesnocancel()
1059  */
1060 #define VIM_YES         2
1061 #define VIM_NO          3
1062 #define VIM_CANCEL      4
1063 #define VIM_ALL         5
1064 #define VIM_DISCARDALL  6
1065
1066 /*
1067  * arguments for win_split()
1068  */
1069 #define WSP_ROOM        1       /* require enough room */
1070 #define WSP_VERT        2       /* split vertically */
1071 #define WSP_TOP         4       /* window at top-left of shell */
1072 #define WSP_BOT         8       /* window at bottom-right of shell */
1073 #define WSP_HELP        16      /* creating the help window */
1074 #define WSP_BELOW       32      /* put new window below/right */
1075 #define WSP_ABOVE       64      /* put new window above/left */
1076 #define WSP_NEWLOC      128     /* don't copy location list */
1077
1078 /*
1079  * arguments for gui_set_shellsize()
1080  */
1081 #define RESIZE_VERT     1       /* resize vertically */
1082 #define RESIZE_HOR      2       /* resize horizontally */
1083 #define RESIZE_BOTH     15      /* resize in both directions */
1084
1085 /*
1086  * "flags" values for option-setting functions.
1087  * When OPT_GLOBAL and OPT_LOCAL are both missing, set both local and global
1088  * values, get local value.
1089  */
1090 #define OPT_FREE        1       /* free old value if it was allocated */
1091 #define OPT_GLOBAL      2       /* use global value */
1092 #define OPT_LOCAL       4       /* use local value */
1093 #define OPT_MODELINE    8       /* option in modeline */
1094 #define OPT_WINONLY     16      /* only set window-local options */
1095 #define OPT_NOWIN       32      /* don't set window-local options */
1096
1097 /* Magic chars used in confirm dialog strings */
1098 #define DLG_BUTTON_SEP  '\n'
1099 #define DLG_HOTKEY_CHAR '&'
1100
1101 /* Values for "starting" */
1102 #define NO_SCREEN       2       /* no screen updating yet */
1103 #define NO_BUFFERS      1       /* not all buffers loaded yet */
1104 /*                      0          not starting anymore */
1105
1106 /* Values for swap_exists_action: what to do when swap file already exists */
1107 #define SEA_NONE        0       /* don't use dialog */
1108 #define SEA_DIALOG      1       /* use dialog when possible */
1109 #define SEA_QUIT        2       /* quit editing the file */
1110 #define SEA_RECOVER     3       /* recover the file */
1111
1112 /*
1113  * Minimal size for block 0 of a swap file.
1114  * NOTE: This depends on size of struct block0! It's not done with a sizeof(),
1115  * because struct block0 is defined in memline.c (Sorry).
1116  * The maximal block size is arbitrary.
1117  */
1118 #define MIN_SWAP_PAGE_SIZE 1048
1119 #define MAX_SWAP_PAGE_SIZE 50000
1120
1121 /* Special values for current_SID. */
1122 #define SID_MODELINE    -1      /* when using a modeline */
1123 #define SID_CMDARG      -2      /* for "--cmd" argument */
1124 #define SID_CARG        -3      /* for "-c" argument */
1125 #define SID_ENV         -4      /* for sourcing environment variable */
1126 #define SID_ERROR       -5      /* option was reset because of an error */
1127 #define SID_NONE        -6      /* don't set scriptID */
1128
1129 /*
1130  * Events for autocommands.
1131  */
1132 enum auto_event
1133 {
1134     EVENT_BUFADD = 0,           /* after adding a buffer to the buffer list */
1135     EVENT_BUFNEW,               /* after creating any buffer */
1136     EVENT_BUFDELETE,            /* deleting a buffer from the buffer list */
1137     EVENT_BUFWIPEOUT,           /* just before really deleting a buffer */
1138     EVENT_BUFENTER,             /* after entering a buffer */
1139     EVENT_BUFFILEPOST,          /* after renaming a buffer */
1140     EVENT_BUFFILEPRE,           /* before renaming a buffer */
1141     EVENT_BUFLEAVE,             /* before leaving a buffer */
1142     EVENT_BUFNEWFILE,           /* when creating a buffer for a new file */
1143     EVENT_BUFREADPOST,          /* after reading a buffer */
1144     EVENT_BUFREADPRE,           /* before reading a buffer */
1145     EVENT_BUFREADCMD,           /* read buffer using command */
1146     EVENT_BUFUNLOAD,            /* just before unloading a buffer */
1147     EVENT_BUFHIDDEN,            /* just after buffer becomes hidden */
1148     EVENT_BUFWINENTER,          /* after showing a buffer in a window */
1149     EVENT_BUFWINLEAVE,          /* just after buffer removed from window */
1150     EVENT_BUFWRITEPOST,         /* after writing a buffer */
1151     EVENT_BUFWRITEPRE,          /* before writing a buffer */
1152     EVENT_BUFWRITECMD,          /* write buffer using command */
1153     EVENT_CMDWINENTER,          /* after entering the cmdline window */
1154     EVENT_CMDWINLEAVE,          /* before leaving the cmdline window */
1155     EVENT_COLORSCHEME,          /* after loading a colorscheme */
1156     EVENT_FILEAPPENDPOST,       /* after appending to a file */
1157     EVENT_FILEAPPENDPRE,        /* before appending to a file */
1158     EVENT_FILEAPPENDCMD,        /* append to a file using command */
1159     EVENT_FILECHANGEDSHELL,     /* after shell command that changed file */
1160     EVENT_FILECHANGEDSHELLPOST, /* after (not) reloading changed file */
1161     EVENT_FILECHANGEDRO,        /* before first change to read-only file */
1162     EVENT_FILEREADPOST,         /* after reading a file */
1163     EVENT_FILEREADPRE,          /* before reading a file */
1164     EVENT_FILEREADCMD,          /* read from a file using command */
1165     EVENT_FILETYPE,             /* new file type detected (user defined) */
1166     EVENT_FILEWRITEPOST,        /* after writing a file */
1167     EVENT_FILEWRITEPRE,         /* before writing a file */
1168     EVENT_FILEWRITECMD,         /* write to a file using command */
1169     EVENT_FILTERREADPOST,       /* after reading from a filter */
1170     EVENT_FILTERREADPRE,        /* before reading from a filter */
1171     EVENT_FILTERWRITEPOST,      /* after writing to a filter */
1172     EVENT_FILTERWRITEPRE,       /* before writing to a filter */
1173     EVENT_FOCUSGAINED,          /* got the focus */
1174     EVENT_FOCUSLOST,            /* lost the focus to another app */
1175     EVENT_GUIENTER,             /* after starting the GUI */
1176     EVENT_GUIFAILED,            /* after starting the GUI failed */
1177     EVENT_INSERTCHANGE,         /* when changing Insert/Replace mode */
1178     EVENT_INSERTENTER,          /* when entering Insert mode */
1179     EVENT_INSERTLEAVE,          /* when leaving Insert mode */
1180     EVENT_MENUPOPUP,            /* just before popup menu is displayed */
1181     EVENT_QUICKFIXCMDPOST,      /* after :make, :grep etc */
1182     EVENT_QUICKFIXCMDPRE,       /* before :make, :grep etc */
1183     EVENT_SESSIONLOADPOST,      /* after loading a session file */
1184     EVENT_STDINREADPOST,        /* after reading from stdin */
1185     EVENT_STDINREADPRE,         /* before reading from stdin */
1186     EVENT_SYNTAX,               /* syntax selected */
1187     EVENT_TERMCHANGED,          /* after changing 'term' */
1188     EVENT_TERMRESPONSE,         /* after setting "v:termresponse" */
1189     EVENT_USER,                 /* user defined autocommand */
1190     EVENT_VIMENTER,             /* after starting Vim */
1191     EVENT_VIMLEAVE,             /* before exiting Vim */
1192     EVENT_VIMLEAVEPRE,          /* before exiting Vim and writing .viminfo */
1193     EVENT_VIMRESIZED,           /* after Vim window was resized */
1194     EVENT_WINENTER,             /* after entering a window */
1195     EVENT_WINLEAVE,             /* before leaving a window */
1196     EVENT_ENCODINGCHANGED,      /* after changing the 'encoding' option */
1197     EVENT_CURSORHOLD,           /* cursor in same position for a while */
1198     EVENT_CURSORHOLDI,          /* idem, in Insert mode */
1199     EVENT_FUNCUNDEFINED,        /* if calling a function which doesn't exist */
1200     EVENT_REMOTEREPLY,          /* upon string reception from a remote vim */
1201     EVENT_SWAPEXISTS,           /* found existing swap file */
1202     EVENT_SOURCEPRE,            /* before sourcing a Vim script */
1203     EVENT_SOURCECMD,            /* sourcing a Vim script using command */
1204     EVENT_SPELLFILEMISSING,     /* spell file missing */
1205     EVENT_CURSORMOVED,          /* cursor was moved */
1206     EVENT_CURSORMOVEDI,         /* cursor was moved in Insert mode */
1207     EVENT_TABLEAVE,             /* before leaving a tab page */
1208     EVENT_TABENTER,             /* after entering a tab page */
1209     EVENT_SHELLCMDPOST,         /* after ":!cmd" */
1210     EVENT_SHELLFILTERPOST,      /* after ":1,2!cmd", ":w !cmd", ":r !cmd". */
1211     NUM_EVENTS                  /* MUST be the last one */
1212 };
1213
1214 typedef enum auto_event event_T;
1215
1216 /*
1217  * Values for index in highlight_attr[].
1218  * When making changes, also update HL_FLAGS below!  And update the default
1219  * value of 'highlight' in option.c.
1220  */
1221 typedef enum
1222 {
1223     HLF_8 = 0       /* Meta & special keys listed with ":map", text that is
1224                        displayed different from what it is */
1225     , HLF_AT        /* @ and ~ characters at end of screen, characters that
1226                        don't really exist in the text */
1227     , HLF_D         /* directories in CTRL-D listing */
1228     , HLF_E         /* error messages */
1229     , HLF_H         /* obsolete, ignored */
1230     , HLF_I         /* incremental search */
1231     , HLF_L         /* last search string */
1232     , HLF_M         /* "--More--" message */
1233     , HLF_CM        /* Mode (e.g., "-- INSERT --") */
1234     , HLF_N         /* line number for ":number" and ":#" commands */
1235     , HLF_R         /* return to continue message and yes/no questions */
1236     , HLF_S         /* status lines */
1237     , HLF_SNC       /* status lines of not-current windows */
1238     , HLF_C         /* column to separate vertically split windows */
1239     , HLF_T         /* Titles for output from ":set all", ":autocmd" etc. */
1240     , HLF_V         /* Visual mode */
1241     , HLF_VNC       /* Visual mode, autoselecting and not clipboard owner */
1242     , HLF_W         /* warning messages */
1243     , HLF_WM        /* Wildmenu highlight */
1244     , HLF_FL        /* Folded line */
1245     , HLF_FC        /* Fold column */
1246     , HLF_ADD       /* Added diff line */
1247     , HLF_CHD       /* Changed diff line */
1248     , HLF_DED       /* Deleted diff line */
1249     , HLF_TXD       /* Text Changed in diff line */
1250     , HLF_SC        /* Sign column */
1251     , HLF_SPB       /* SpellBad */
1252     , HLF_SPC       /* SpellCap */
1253     , HLF_SPR       /* SpellRare */
1254     , HLF_SPL       /* SpellLocal */
1255     , HLF_PNI       /* popup menu normal item */
1256     , HLF_PSI       /* popup menu selected item */
1257     , HLF_PSB       /* popup menu scrollbar */
1258     , HLF_PST       /* popup menu scrollbar thumb */
1259     , HLF_TP        /* tabpage line */
1260     , HLF_TPS       /* tabpage line selected */
1261     , HLF_TPF       /* tabpage line filler */
1262     , HLF_CUC       /* 'cursurcolumn' */
1263     , HLF_CUL       /* 'cursurline' */
1264     , HLF_COUNT     /* MUST be the last one */
1265 } hlf_T;
1266
1267 /* The HL_FLAGS must be in the same order as the HLF_ enums!
1268  * When chainging this also adjust the default for 'highlight'. */
1269 #define HL_FLAGS {'8', '@', 'd', 'e', 'h', 'i', 'l', 'm', 'M', \
1270                   'n', 'r', 's', 'S', 'c', 't', 'v', 'V', 'w', 'W', \
1271                   'f', 'F', 'A', 'C', 'D', 'T', '>', \
1272                   'B', 'P', 'R', 'L', \
1273                   '+', '=', 'x', 'X', '*', '#', '_', '!', '.'}
1274
1275 /*
1276  * Boolean constants
1277  */
1278 #ifndef TRUE
1279 # define FALSE  0           /* note: this is an int, not a long! */
1280 # define TRUE   1
1281 #endif
1282
1283 #define MAYBE   2           /* sometimes used for a variant on TRUE */
1284
1285 /*
1286  * Operator IDs; The order must correspond to opchars[] in ops.c!
1287  */
1288 #define OP_NOP          0       /* no pending operation */
1289 #define OP_DELETE       1       /* "d"  delete operator */
1290 #define OP_YANK         2       /* "y"  yank operator */
1291 #define OP_CHANGE       3       /* "c"  change operator */
1292 #define OP_LSHIFT       4       /* "<"  left shift operator */
1293 #define OP_RSHIFT       5       /* ">"  right shift operator */
1294 #define OP_FILTER       6       /* "!"  filter operator */
1295 #define OP_TILDE        7       /* "g~" switch case operator */
1296 #define OP_INDENT       8       /* "="  indent operator */
1297 #define OP_FORMAT       9       /* "gq" format operator */
1298 #define OP_COLON        10      /* ":"  colon operator */
1299 #define OP_UPPER        11      /* "gU" make upper case operator */
1300 #define OP_LOWER        12      /* "gu" make lower case operator */
1301 #define OP_JOIN         13      /* "J"  join operator, only for Visual mode */
1302 #define OP_JOIN_NS      14      /* "gJ"  join operator, only for Visual mode */
1303 #define OP_ROT13        15      /* "g?" rot-13 encoding */
1304 #define OP_REPLACE      16      /* "r"  replace chars, only for Visual mode */
1305 #define OP_INSERT       17      /* "I"  Insert column, only for Visual mode */
1306 #define OP_APPEND       18      /* "A"  Append column, only for Visual mode */
1307 #define OP_FOLD         19      /* "zf" define a fold */
1308 #define OP_FOLDOPEN     20      /* "zo" open folds */
1309 #define OP_FOLDOPENREC  21      /* "zO" open folds recursively */
1310 #define OP_FOLDCLOSE    22      /* "zc" close folds */
1311 #define OP_FOLDCLOSEREC 23      /* "zC" close folds recursively */
1312 #define OP_FOLDDEL      24      /* "zd" delete folds */
1313 #define OP_FOLDDELREC   25      /* "zD" delete folds recursively */
1314 #define OP_FORMAT2      26      /* "gw" format operator, keeps cursor pos */
1315 #define OP_FUNCTION     27      /* "g@" call 'operatorfunc' */
1316
1317 /*
1318  * Motion types, used for operators and for yank/delete registers.
1319  */
1320 #define MCHAR   0               /* character-wise movement/register */
1321 #define MLINE   1               /* line-wise movement/register */
1322 #define MBLOCK  2               /* block-wise register */
1323
1324 #define MAUTO   0xff            /* Decide between MLINE/MCHAR */
1325
1326 /*
1327  * Minimum screen size
1328  */
1329 #define MIN_COLUMNS     12      /* minimal columns for screen */
1330 #define MIN_LINES       2       /* minimal lines for screen */
1331 #define STATUS_HEIGHT   1       /* height of a status line under a window */
1332 #define QF_WINHEIGHT    10      /* default height for quickfix window */
1333
1334 /*
1335  * Buffer sizes
1336  */
1337 #ifndef CMDBUFFSIZE
1338 # define CMDBUFFSIZE    256     /* size of the command processing buffer */
1339 #endif
1340
1341 #define LSIZE       512         /* max. size of a line in the tags file */
1342
1343 #define IOSIZE     (1024+1)     /* file i/o and sprintf buffer size */
1344
1345 #ifdef FEAT_MBYTE
1346 # define MSG_BUF_LEN 480        /* length of buffer for small messages */
1347 # define MSG_BUF_CLEN  (MSG_BUF_LEN / 6)    /* cell length (worst case: utf-8
1348                                                takes 6 bytes for one cell) */
1349 #else
1350 # define MSG_BUF_LEN 80         /* length of buffer for small messages */
1351 # define MSG_BUF_CLEN  MSG_BUF_LEN          /* cell length */
1352 #endif
1353
1354 /* Size of the buffer used for tgetent().  Unfortunately this is largely
1355  * undocumented, some systems use 1024.  Using a buffer that is too small
1356  * causes a buffer overrun and a crash.  Use the maximum known value to stay
1357  * on the safe side. */
1358 #define TBUFSZ 2048             /* buffer size for termcap entry */
1359
1360 /*
1361  * Maximum length of key sequence to be mapped.
1362  * Must be able to hold an Amiga resize report.
1363  */
1364 #define MAXMAPLEN   50
1365
1366 #ifdef HAVE_FCNTL_H
1367 # include <fcntl.h>
1368 #endif
1369
1370 #ifdef BINARY_FILE_IO
1371 # define WRITEBIN   "wb"        /* no CR-LF translation */
1372 # define READBIN    "rb"
1373 # define APPENDBIN  "ab"
1374 #else
1375 # define WRITEBIN   "w"
1376 # define READBIN    "r"
1377 # define APPENDBIN  "a"
1378 #endif
1379
1380 /*
1381  * EMX doesn't have a global way of making open() use binary I/O.
1382  * Use O_BINARY for all open() calls.
1383  */
1384 #if defined(__EMX__) || defined(__CYGWIN32__)
1385 # define O_EXTRA    O_BINARY
1386 #else
1387 # define O_EXTRA    0
1388 #endif
1389
1390 #ifndef O_NOFOLLOW
1391 # define O_NOFOLLOW 0
1392 #endif
1393
1394 #ifndef W_OK
1395 # define W_OK 2         /* for systems that don't have W_OK in unistd.h */
1396 #endif
1397 #ifndef R_OK
1398 # define R_OK 4         /* for systems that don't have R_OK in unistd.h */
1399 #endif
1400
1401 /*
1402  * defines to avoid typecasts from (char_u *) to (char *) and back
1403  * (vim_strchr() and vim_strrchr() are now in alloc.c)
1404  */
1405 #define STRLEN(s)           strlen((char *)(s))
1406 #define STRCPY(d, s)        strcpy((char *)(d), (char *)(s))
1407 #define STRNCPY(d, s, n)    strncpy((char *)(d), (char *)(s), (size_t)(n))
1408 #define STRCMP(d, s)        strcmp((char *)(d), (char *)(s))
1409 #define STRNCMP(d, s, n)    strncmp((char *)(d), (char *)(s), (size_t)(n))
1410 #ifdef HAVE_STRCASECMP
1411 # define STRICMP(d, s)      strcasecmp((char *)(d), (char *)(s))
1412 #else
1413 # ifdef HAVE_STRICMP
1414 #  define STRICMP(d, s)     stricmp((char *)(d), (char *)(s))
1415 # else
1416 #  define STRICMP(d, s)     vim_stricmp((char *)(d), (char *)(s))
1417 # endif
1418 #endif
1419
1420 /* Like strcpy() but allows overlapped source and destination. */
1421 #define STRMOVE(d, s)       mch_memmove((d), (s), STRLEN(s) + 1)
1422
1423 #ifdef HAVE_STRNCASECMP
1424 # define STRNICMP(d, s, n)  strncasecmp((char *)(d), (char *)(s), (size_t)(n))
1425 #else
1426 # ifdef HAVE_STRNICMP
1427 #  define STRNICMP(d, s, n) strnicmp((char *)(d), (char *)(s), (size_t)(n))
1428 # else
1429 #  define STRNICMP(d, s, n) vim_strnicmp((char *)(d), (char *)(s), (size_t)(n))
1430 # endif
1431 #endif
1432
1433 #ifdef FEAT_MBYTE
1434 /* We need to call mb_stricmp() even when we aren't dealing with a multi-byte
1435  * encoding because mb_stricmp() takes care of all ascii and non-ascii
1436  * encodings, including characters with umluats in latin1, etc., while
1437  * STRICMP() only handles the system locale version, which often does not
1438  * handle non-ascii properly. */
1439
1440 # define MB_STRICMP(d, s)       mb_strnicmp((char_u *)(d), (char_u *)(s), (int)MAXCOL)
1441 # define MB_STRNICMP(d, s, n)   mb_strnicmp((char_u *)(d), (char_u *)(s), (int)(n))
1442 #else
1443 # define MB_STRICMP(d, s)       STRICMP((d), (s))
1444 # define MB_STRNICMP(d, s, n)   STRNICMP((d), (s), (n))
1445 #endif
1446
1447 #define STRCAT(d, s)        strcat((char *)(d), (char *)(s))
1448 #define STRNCAT(d, s, n)    strncat((char *)(d), (char *)(s), (size_t)(n))
1449
1450 #ifdef HAVE_STRPBRK
1451 # define vim_strpbrk(s, cs) (char_u *)strpbrk((char *)(s), (char *)(cs))
1452 #endif
1453
1454 #define MSG(s)                      msg((char_u *)(s))
1455 #define MSG_ATTR(s, attr)           msg_attr((char_u *)(s), (attr))
1456 #define EMSG(s)                     emsg((char_u *)(s))
1457 #define EMSG2(s, p)                 emsg2((char_u *)(s), (char_u *)(p))
1458 #define EMSG3(s, p, q)              emsg3((char_u *)(s), (char_u *)(p), (char_u *)(q))
1459 #define EMSGN(s, n)                 emsgn((char_u *)(s), (long)(n))
1460 #define EMSGU(s, n)                 emsgu((char_u *)(s), (long_u)(n))
1461 #define OUT_STR(s)                  out_str((char_u *)(s))
1462 #define OUT_STR_NF(s)               out_str_nf((char_u *)(s))
1463 #define MSG_PUTS(s)                 msg_puts((char_u *)(s))
1464 #define MSG_PUTS_ATTR(s, a)         msg_puts_attr((char_u *)(s), (a))
1465 #define MSG_PUTS_TITLE(s)           msg_puts_title((char_u *)(s))
1466 #define MSG_PUTS_LONG(s)            msg_puts_long_attr((char_u *)(s), 0)
1467 #define MSG_PUTS_LONG_ATTR(s, a)    msg_puts_long_attr((char_u *)(s), (a))
1468
1469 /* Prefer using emsg3(), because perror() may send the output to the wrong
1470  * destination and mess up the screen. */
1471 #ifdef HAVE_STRERROR
1472 # define PERROR(msg)                (void)emsg3((char_u *)"%s: %s", (char_u *)msg, (char_u *)strerror(errno))
1473 #else
1474 # define PERROR(msg)                perror(msg)
1475 #endif
1476
1477 typedef long    linenr_T;               /* line number type */
1478 typedef int     colnr_T;                /* column number type */
1479 typedef unsigned short disptick_T;      /* display tick type */
1480
1481 #define MAXLNUM (0x7fffffffL)           /* maximum (invalid) line number */
1482
1483 /*
1484  * Well, you won't believe it, but some S/390 machines ("host", now also known
1485  * as zServer) us 31 bit pointers. There are also some newer machines, that
1486  * use 64 bit pointers. I don't know how to distinguish between 31 and 64 bit
1487  * machines, so the best way is to assume 31 bits whenever we detect OS/390
1488  * Unix.
1489  * With this we restrict the maximum line length to 1073741823. I guess this is
1490  * not a real problem. BTW:  Longer lines are split.
1491  */
1492 #if SIZEOF_INT >= 4
1493 # ifdef __MVS__
1494 #  define MAXCOL (0x3fffffffL)          /* maximum column number, 30 bits */
1495 # else
1496 #  define MAXCOL (0x7fffffffL)          /* maximum column number, 31 bits */
1497 # endif
1498 #else
1499 # define MAXCOL (0x7fff)                /* maximum column number, 15 bits */
1500 #endif
1501
1502 #define SHOWCMD_COLS 10                 /* columns needed by shown command */
1503 #define STL_MAX_ITEM 80                 /* max nr of %<flag> in statusline */
1504
1505 typedef void        *vim_acl_T;         /* dummy to pass an ACL to a function */
1506
1507 /*
1508  * Include a prototype for mch_memmove(), it may not be in alloc.pro.
1509  */
1510 #ifdef VIM_MEMMOVE
1511 void mch_memmove __ARGS((void *, void *, size_t));
1512 #else
1513 # ifndef mch_memmove
1514 #  define mch_memmove(to, from, len) memmove(to, from, len)
1515 # endif
1516 #endif
1517
1518 /*
1519  * fnamecmp() is used to compare file names.
1520  * On some systems case in a file name does not matter, on others it does.
1521  * (this does not account for maximum name lengths and things like "../dir",
1522  * thus it is not 100% accurate!)
1523  */
1524 #ifdef CASE_INSENSITIVE_FILENAME
1525 # ifdef BACKSLASH_IN_FILENAME
1526 #  define fnamecmp(x, y) vim_fnamecmp((x), (y))
1527 #  define fnamencmp(x, y, n) vim_fnamencmp((x), (y), (size_t)(n))
1528 # else
1529 #  define fnamecmp(x, y) MB_STRICMP((x), (y))
1530 #  define fnamencmp(x, y, n) MB_STRNICMP((x), (y), (n))
1531 # endif
1532 #else
1533 # define fnamecmp(x, y) strcmp((char *)(x), (char *)(y))
1534 # define fnamencmp(x, y, n) strncmp((char *)(x), (char *)(y), (size_t)(n))
1535 #endif
1536
1537 #ifdef HAVE_MEMSET
1538 # define vim_memset(ptr, c, size)   memset((ptr), (c), (size))
1539 #else
1540 void *vim_memset __ARGS((void *, int, size_t));
1541 #endif
1542
1543 #ifdef HAVE_MEMCMP
1544 # define vim_memcmp(p1, p2, len)   memcmp((p1), (p2), (len))
1545 #else
1546 # ifdef HAVE_BCMP
1547 #  define vim_memcmp(p1, p2, len)   bcmp((p1), (p2), (len))
1548 # else
1549 int vim_memcmp __ARGS((void *, void *, size_t));
1550 #  define VIM_MEMCMP
1551 # endif
1552 #endif
1553
1554 #if defined(UNIX) || defined(FEAT_GUI) || defined(OS2) || defined(VMS) \
1555         || defined(FEAT_CLIENTSERVER)
1556 # define USE_INPUT_BUF
1557 #endif
1558
1559 #ifdef MSWIN
1560 /* On MS-Windows the third argument isn't size_t.  This matters for Win64,
1561  * where sizeof(size_t)==8, not 4 */
1562 # define vim_read(fd, buf, count)   read((fd), (char *)(buf), (unsigned int)(count))
1563 # define vim_write(fd, buf, count)  write((fd), (char *)(buf), (unsigned int)(count))
1564 #else
1565 # define vim_read(fd, buf, count)   read((fd), (char *)(buf), (size_t) (count))
1566 # define vim_write(fd, buf, count)  write((fd), (char *)(buf), (size_t) (count))
1567 #endif
1568
1569 /*
1570  * Enums need a typecast to be used as array index (for Ultrix).
1571  */
1572 #define hl_attr(n)      highlight_attr[(int)(n)]
1573 #define term_str(n)     term_strings[(int)(n)]
1574
1575 /*
1576  * vim_iswhite() is used for "^" and the like. It differs from isspace()
1577  * because it doesn't include <CR> and <LF> and the like.
1578  */
1579 #define vim_iswhite(x)  ((x) == ' ' || (x) == '\t')
1580
1581 /*
1582  * EXTERN is only defined in main.c.  That's where global variables are
1583  * actually defined and initialized.
1584  */
1585 #ifndef EXTERN
1586 # define EXTERN extern
1587 # define INIT(x)
1588 #else
1589 # ifndef INIT
1590 #  define INIT(x) x
1591 #  define DO_INIT
1592 # endif
1593 #endif
1594
1595 #ifdef FEAT_MBYTE
1596 # define MAX_MCO        6       /* maximum value for 'maxcombine' */
1597
1598 /* Maximum number of bytes in a multi-byte character.  It can be one 32-bit
1599  * character of up to 6 bytes, or one 16-bit character of up to three bytes
1600  * plus six following composing characters of three bytes each. */
1601 # define MB_MAXBYTES    21
1602 #endif
1603
1604 #if (defined(FEAT_PROFILE) || defined(FEAT_RELTIME)) && !defined(PROTO)
1605 # ifdef WIN3264
1606 typedef LARGE_INTEGER proftime_T;
1607 # else
1608 typedef struct timeval proftime_T;
1609 # endif
1610 #else
1611 typedef int proftime_T;     /* dummy for function prototypes */
1612 #endif
1613
1614 /* Include option.h before structs.h, because the number of window-local and
1615  * buffer-local options is used there. */
1616 #include "option.h"         /* options and default values */
1617
1618 /* Note that gui.h is included by structs.h */
1619
1620 #include "structs.h"        /* file that defines many structures */
1621
1622 /* Values for "do_profiling". */
1623 #define PROF_NONE       0       /* profiling not started */
1624 #define PROF_YES        1       /* profiling busy */
1625 #define PROF_PAUSED     2       /* profiling paused */
1626
1627 #ifdef FEAT_MOUSE
1628
1629 /* Codes for mouse button events in lower three bits: */
1630 # define MOUSE_LEFT     0x00
1631 # define MOUSE_MIDDLE   0x01
1632 # define MOUSE_RIGHT    0x02
1633 # define MOUSE_RELEASE  0x03
1634
1635 /* bit masks for modifiers: */
1636 # define MOUSE_SHIFT    0x04
1637 # define MOUSE_ALT      0x08
1638 # define MOUSE_CTRL     0x10
1639
1640 /* mouse buttons that are handled like a key press (GUI only) */
1641 # define MOUSE_4        0x100   /* scroll wheel down */
1642 # define MOUSE_5        0x200   /* scroll wheel up */
1643
1644 # define MOUSE_X1       0x300 /* Mouse-button X1 (6th) */
1645 # define MOUSE_X2       0x400 /* Mouse-button X2 */
1646
1647 /* 0x20 is reserved by xterm */
1648 # define MOUSE_DRAG_XTERM   0x40
1649
1650 # define MOUSE_DRAG     (0x40 | MOUSE_RELEASE)
1651
1652 /* Lowest button code for using the mouse wheel (xterm only) */
1653 # define MOUSEWHEEL_LOW         0x60
1654
1655 # define MOUSE_CLICK_MASK       0x03
1656
1657 # define NUM_MOUSE_CLICKS(code) \
1658     (((unsigned)((code) & 0xC0) >> 6) + 1)
1659
1660 # define SET_NUM_MOUSE_CLICKS(code, num) \
1661     (code) = ((code) & 0x3f) | ((((num) - 1) & 3) << 6)
1662
1663 /* Added to mouse column for GUI when 'mousefocus' wants to give focus to a
1664  * window by simulating a click on its status line.  We could use up to 128 *
1665  * 128 = 16384 columns, now it's reduced to 10000. */
1666 # define MOUSE_COLOFF 10000
1667
1668 /*
1669  * jump_to_mouse() returns one of first four these values, possibly with
1670  * some of the other three added.
1671  */
1672 # define IN_UNKNOWN             0
1673 # define IN_BUFFER              1
1674 # define IN_STATUS_LINE         2       /* on status or command line */
1675 # define IN_SEP_LINE            4       /* on vertical separator line */
1676 # define IN_OTHER_WIN           8       /* in other window but can't go there */
1677 # define CURSOR_MOVED           0x100
1678 # define MOUSE_FOLD_CLOSE       0x200   /* clicked on '-' in fold column */
1679 # define MOUSE_FOLD_OPEN        0x400   /* clicked on '+' in fold column */
1680
1681 /* flags for jump_to_mouse() */
1682 # define MOUSE_FOCUS            0x01    /* need to stay in this window */
1683 # define MOUSE_MAY_VIS          0x02    /* may start Visual mode */
1684 # define MOUSE_DID_MOVE         0x04    /* only act when mouse has moved */
1685 # define MOUSE_SETPOS           0x08    /* only set current mouse position */
1686 # define MOUSE_MAY_STOP_VIS     0x10    /* may stop Visual mode */
1687 # define MOUSE_RELEASED         0x20    /* button was released */
1688
1689 # if defined(UNIX) && defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
1690 #  define CHECK_DOUBLE_CLICK 1  /* Checking for double clicks ourselves. */
1691 # endif
1692
1693 #endif /* FEAT_MOUSE */
1694
1695 /* defines for eval_vars() */
1696 #define VALID_PATH              1
1697 #define VALID_HEAD              2
1698
1699 /* Defines for Vim variables.  These must match vimvars[] in eval.c! */
1700 #define VV_COUNT        0
1701 #define VV_COUNT1       1
1702 #define VV_PREVCOUNT    2
1703 #define VV_ERRMSG       3
1704 #define VV_WARNINGMSG   4
1705 #define VV_STATUSMSG    5
1706 #define VV_SHELL_ERROR  6
1707 #define VV_THIS_SESSION 7
1708 #define VV_VERSION      8
1709 #define VV_LNUM         9
1710 #define VV_TERMRESPONSE 10
1711 #define VV_FNAME        11
1712 #define VV_LANG         12
1713 #define VV_LC_TIME      13
1714 #define VV_CTYPE        14
1715 #define VV_CC_FROM      15
1716 #define VV_CC_TO        16
1717 #define VV_FNAME_IN     17
1718 #define VV_FNAME_OUT    18
1719 #define VV_FNAME_NEW    19
1720 #define VV_FNAME_DIFF   20
1721 #define VV_CMDARG       21
1722 #define VV_FOLDSTART    22
1723 #define VV_FOLDEND      23
1724 #define VV_FOLDDASHES   24
1725 #define VV_FOLDLEVEL    25
1726 #define VV_PROGNAME     26
1727 #define VV_SEND_SERVER  27
1728 #define VV_DYING        28
1729 #define VV_EXCEPTION    29
1730 #define VV_THROWPOINT   30
1731 #define VV_REG          31
1732 #define VV_CMDBANG      32
1733 #define VV_INSERTMODE   33
1734 #define VV_VAL          34
1735 #define VV_KEY          35
1736 #define VV_PROFILING    36
1737 #define VV_FCS_REASON   37
1738 #define VV_FCS_CHOICE   38
1739 #define VV_BEVAL_BUFNR  39
1740 #define VV_BEVAL_WINNR  40
1741 #define VV_BEVAL_LNUM   41
1742 #define VV_BEVAL_COL    42
1743 #define VV_BEVAL_TEXT   43
1744 #define VV_SCROLLSTART  44
1745 #define VV_SWAPNAME     45
1746 #define VV_SWAPCHOICE   46
1747 #define VV_SWAPCOMMAND  47
1748 #define VV_CHAR         48
1749 #define VV_MOUSE_WIN    49
1750 #define VV_MOUSE_LNUM   50
1751 #define VV_MOUSE_COL    51
1752 #define VV_OP           52
1753 #define VV_SEARCHFORWARD 53
1754 #define VV_OLDFILES     54
1755 #define VV_LEN          55      /* number of v: vars */
1756
1757 #ifdef FEAT_CLIPBOARD
1758
1759 /* VIM_ATOM_NAME is the older Vim-specific selection type for X11.  Still
1760  * supported for when a mix of Vim versions is used. VIMENC_ATOM_NAME includes
1761  * the encoding to support Vims using different 'encoding' values. */
1762 #define VIM_ATOM_NAME "_VIM_TEXT"
1763 #define VIMENC_ATOM_NAME "_VIMENC_TEXT"
1764
1765 /* Selection states for modeless selection */
1766 # define SELECT_CLEARED         0
1767 # define SELECT_IN_PROGRESS     1
1768 # define SELECT_DONE            2
1769
1770 # define SELECT_MODE_CHAR       0
1771 # define SELECT_MODE_WORD       1
1772 # define SELECT_MODE_LINE       2
1773
1774 # ifdef FEAT_GUI_W32
1775 #  ifdef FEAT_OLE
1776 #   define WM_OLE (WM_APP+0)
1777 #  endif
1778 #  ifdef FEAT_NETBEANS_INTG
1779     /* message for Netbeans socket event */
1780 #   define WM_NETBEANS (WM_APP+1)
1781 #  endif
1782 # endif
1783
1784 /* Info about selected text */
1785 typedef struct VimClipboard
1786 {
1787     int         available;      /* Is clipboard available? */
1788     int         owned;          /* Flag: do we own the selection? */
1789     pos_T       start;          /* Start of selected area */
1790     pos_T       end;            /* End of selected area */
1791     int         vmode;          /* Visual mode character */
1792
1793     /* Fields for selection that doesn't use Visual mode */
1794     short_u     origin_row;
1795     short_u     origin_start_col;
1796     short_u     origin_end_col;
1797     short_u     word_start_col;
1798     short_u     word_end_col;
1799
1800     pos_T       prev;           /* Previous position */
1801     short_u     state;          /* Current selection state */
1802     short_u     mode;           /* Select by char, word, or line. */
1803
1804 # if defined(FEAT_GUI_X11) || defined(FEAT_XCLIPBOARD)
1805     Atom        sel_atom;       /* PRIMARY/CLIPBOARD selection ID */
1806 # endif
1807
1808 # ifdef FEAT_GUI_GTK
1809     GdkAtom     gtk_sel_atom;   /* PRIMARY/CLIPBOARD selection ID */
1810 # endif
1811
1812 # ifdef MSWIN
1813     int_u       format;         /* Vim's own special clipboard format */
1814     int_u       format_raw;     /* Vim's raw text clipboard format */
1815 # endif
1816 } VimClipboard;
1817 #else
1818 typedef int VimClipboard;       /* This is required for the prototypes. */
1819 #endif
1820
1821 #ifdef __BORLANDC__
1822 /* work around a bug in the Borland 'stat' function: */
1823 # include <io.h>            /* for access() */
1824
1825 # define stat(a,b) (access(a,0) ? -1 : stat(a,b))
1826 #endif
1827
1828 #include "ex_cmds.h"        /* Ex command defines */
1829 #include "proto.h"          /* function prototypes */
1830
1831 /* This has to go after the include of proto.h, as proto/gui.pro declares
1832  * functions of these names. The declarations would break if the defines had
1833  * been seen at that stage.  But it must be before globals.h, where error_ga
1834  * is declared. */
1835 #if !defined(FEAT_GUI_W32) && !defined(FEAT_GUI_X11) \
1836         && !defined(FEAT_GUI_GTK) && !defined(FEAT_GUI_MAC)
1837 # define mch_errmsg(str)        fprintf(stderr, "%s", (str))
1838 # define display_errors()       fflush(stderr)
1839 # define mch_msg(str)           printf("%s", (str))
1840 #else
1841 # define USE_MCH_ERRMSG
1842 #endif
1843
1844 #ifndef FEAT_MBYTE
1845 # define after_pathsep(b, p)    vim_ispathsep(*((p) - 1))
1846 # define transchar_byte(c)      transchar(c)
1847 #endif
1848
1849 #ifndef FEAT_LINEBREAK
1850 /* Without the 'numberwidth' option line numbers are always 7 chars. */
1851 # define number_width(x) 7
1852 #endif
1853
1854
1855 #include "globals.h"        /* global variables and messages */
1856
1857 #ifdef FEAT_SNIFF
1858 # include "if_sniff.h"
1859 #endif
1860
1861 #ifndef FEAT_VIRTUALEDIT
1862 # define getvvcol(w, p, s, c, e) getvcol(w, p, s, c, e)
1863 # define virtual_active() 0
1864 # define virtual_op FALSE
1865 #endif
1866
1867 /*
1868  * If console dialog not supported, but GUI dialog is, use the GUI one.
1869  */
1870 #if defined(FEAT_GUI_DIALOG) && !defined(FEAT_CON_DIALOG)
1871 # define do_dialog gui_mch_dialog
1872 #endif
1873
1874 /*
1875  * Default filters for gui_mch_browse().
1876  * The filters are almost system independent.  Except for the difference
1877  * between "*" and "*.*" for MSDOS-like systems.
1878  * NOTE: Motif only uses the very first pattern.  Therefore
1879  * BROWSE_FILTER_DEFAULT should start with a "*" pattern.
1880  */
1881 #ifdef FEAT_BROWSE
1882 # ifdef BACKSLASH_IN_FILENAME
1883 #  define BROWSE_FILTER_MACROS \
1884         (char_u *)"Vim macro files (*.vim)\t*.vim\nAll Files (*.*)\t*.*\n"
1885 #  define BROWSE_FILTER_ALL_FILES (char_u *)"All Files (*.*)\t*.*\n"
1886 #  define BROWSE_FILTER_DEFAULT \
1887         (char_u *)"All Files (*.*)\t*.*\nC source (*.c, *.h)\t*.c;*.h\nC++ source (*.cpp, *.hpp)\t*.cpp;*.hpp\nVB code (*.bas, *.frm)\t*.bas;*.frm\nVim files (*.vim, _vimrc, _gvimrc)\t*.vim;_vimrc;_gvimrc\n"
1888 # else
1889 #  define BROWSE_FILTER_MACROS \
1890         (char_u *)"Vim macro files (*.vim)\t*.vim\nAll Files (*)\t*\n"
1891 #  define BROWSE_FILTER_ALL_FILES (char_u *)"All Files (*)\t*\n"
1892 #  define BROWSE_FILTER_DEFAULT \
1893         (char_u *)"All Files (*)\t*\nC source (*.c, *.h)\t*.c;*.h\nC++ source (*.cpp, *.hpp)\t*.cpp;*.hpp\nVim files (*.vim, _vimrc, _gvimrc)\t*.vim;_vimrc;_gvimrc\n"
1894 # endif
1895 # define BROWSE_SAVE 1      /* flag for do_browse() */
1896 # define BROWSE_DIR 2       /* flag for do_browse() */
1897 #endif
1898
1899 /* stop using fastcall for Borland */
1900 #if defined(__BORLANDC__) && defined(WIN32) && !defined(DEBUG)
1901  #pragma option -p.
1902 #endif
1903
1904 #if defined(MEM_PROFILE)
1905 # define vim_realloc(ptr, size)  mem_realloc((ptr), (size))
1906 #else
1907 # define vim_realloc(ptr, size)  realloc((ptr), (size))
1908 #endif
1909
1910 /*
1911  * The following macros stop display/event loop nesting at the wrong time.
1912  */
1913 #ifdef ALT_X_INPUT
1914 # define ALT_INPUT_LOCK_OFF     suppress_alternate_input = FALSE
1915 # define ALT_INPUT_LOCK_ON      suppress_alternate_input = TRUE
1916 #endif
1917
1918 #ifdef FEAT_MBYTE
1919 /*
1920  * Return byte length of character that starts with byte "b".
1921  * Returns 1 for a single-byte character.
1922  * MB_BYTE2LEN_CHECK() can be used to count a special key as one byte.
1923  * Don't call MB_BYTE2LEN(b) with b < 0 or b > 255!
1924  */
1925 # define MB_BYTE2LEN(b)         mb_bytelen_tab[b]
1926 # define MB_BYTE2LEN_CHECK(b)   (((b) < 0 || (b) > 255) ? 1 : mb_bytelen_tab[b])
1927 #endif
1928
1929 #if defined(FEAT_MBYTE) || defined(FEAT_POSTSCRIPT)
1930 /* properties used in enc_canon_table[] (first three mutually exclusive) */
1931 # define ENC_8BIT       0x01
1932 # define ENC_DBCS       0x02
1933 # define ENC_UNICODE    0x04
1934
1935 # define ENC_ENDIAN_B   0x10        /* Unicode: Big endian */
1936 # define ENC_ENDIAN_L   0x20        /* Unicode: Little endian */
1937
1938 # define ENC_2BYTE      0x40        /* Unicode: UCS-2 */
1939 # define ENC_4BYTE      0x80        /* Unicode: UCS-4 */
1940 # define ENC_2WORD      0x100       /* Unicode: UTF-16 */
1941
1942 # define ENC_LATIN1     0x200       /* Latin1 */
1943 # define ENC_LATIN9     0x400       /* Latin9 */
1944 # define ENC_MACROMAN   0x800       /* Mac Roman (not Macro Man! :-) */
1945 #endif
1946
1947 #ifdef FEAT_MBYTE
1948 # ifdef USE_ICONV
1949 #  ifndef EILSEQ
1950 #   define EILSEQ 123
1951 #  endif
1952 #  ifdef DYNAMIC_ICONV
1953 /* On Win32 iconv.dll is dynamically loaded. */
1954 #   define ICONV_ERRNO (*iconv_errno())
1955 #   define ICONV_E2BIG  7
1956 #   define ICONV_EINVAL 22
1957 #   define ICONV_EILSEQ 42
1958 #  else
1959 #   define ICONV_ERRNO errno
1960 #   define ICONV_E2BIG  E2BIG
1961 #   define ICONV_EINVAL EINVAL
1962 #   define ICONV_EILSEQ EILSEQ
1963 #  endif
1964 # endif
1965
1966 #endif
1967
1968 /* ISSYMLINK(mode) tests if a file is a symbolic link. */
1969 #if (defined(S_IFMT) && defined(S_IFLNK)) || defined(S_ISLNK)
1970 # define HAVE_ISSYMLINK
1971 # if defined(S_IFMT) && defined(S_IFLNK)
1972 #  define ISSYMLINK(mode) (((mode) & S_IFMT) == S_IFLNK)
1973 # else
1974 #  define ISSYMLINK(mode) S_ISLNK(mode)
1975 # endif
1976 #endif
1977
1978 #define SIGN_BYTE 1         /* byte value used where sign is displayed;
1979                                attribute value is sign type */
1980
1981 #ifdef FEAT_NETBEANS_INTG
1982 # define MULTISIGN_BYTE 2   /* byte value used where sign is displayed if
1983                                multiple signs exist on the line */
1984 #endif
1985
1986 #if defined(FEAT_GUI) && defined(FEAT_XCLIPBOARD)
1987 # ifdef FEAT_GUI_GTK
1988    /* Avoid using a global variable for the X display.  It's ugly
1989     * and is likely to cause trouble in multihead environments. */
1990 #  define X_DISPLAY     ((gui.in_use) ? gui_mch_get_display() : xterm_dpy)
1991 # else
1992 #  define X_DISPLAY     (gui.in_use ? gui.dpy : xterm_dpy)
1993 # endif
1994 #else
1995 # ifdef FEAT_GUI
1996 #  ifdef FEAT_GUI_GTK
1997 #   define X_DISPLAY    ((gui.in_use) ? gui_mch_get_display() : (Display *)NULL)
1998 #  else
1999 #   define X_DISPLAY    gui.dpy
2000 #  endif
2001 # else
2002 #  define X_DISPLAY     xterm_dpy
2003 # endif
2004 #endif
2005
2006 #ifndef FEAT_NETBEANS_INTG
2007 # undef NBDEBUG
2008 #endif
2009 #ifdef NBDEBUG /* Netbeans debugging. */
2010 # include "nbdebug.h"
2011 #else
2012 # define nbdebug(a)
2013 #endif
2014
2015 #ifdef IN_PERL_FILE
2016   /*
2017    * Avoid clashes between Perl and Vim namespace.
2018    */
2019 # undef NORMAL
2020 # undef STRLEN
2021 # undef FF
2022 # undef OP_DELETE
2023 # undef OP_JOIN
2024 # ifdef __BORLANDC__
2025 #  define NOPROTO 1
2026 # endif
2027   /* remove MAX and MIN, included by glib.h, redefined by sys/param.h */
2028 # ifdef MAX
2029 #  undef MAX
2030 # endif
2031 # ifdef MIN
2032 #  undef MIN
2033 # endif
2034   /* We use _() for gettext(), Perl uses it for function prototypes... */
2035 # ifdef _
2036 #  undef _
2037 # endif
2038 # ifdef DEBUG
2039 #  undef DEBUG
2040 # endif
2041 # ifdef _DEBUG
2042 #  undef _DEBUG
2043 # endif
2044 # ifdef instr
2045 #  undef instr
2046 # endif
2047   /* bool may cause trouble on MACOS but is required on a few other systems
2048    * and for Perl */
2049 # if defined(bool) && defined(MACOS) && !defined(FEAT_PERL)
2050 #  undef bool
2051 # endif
2052
2053 # ifdef __BORLANDC__
2054   /* Borland has the structure stati64 but not _stati64 */
2055 #  define _stati64 stati64
2056 # endif
2057
2058 # include <EXTERN.h>
2059 # include <perl.h>
2060 # include <XSUB.h>
2061 #endif
2062
2063 /* values for vim_handle_signal() that are not a signal */
2064 #define SIGNAL_BLOCK    -1
2065 #define SIGNAL_UNBLOCK  -2
2066 #if !defined(UNIX) && !defined(VMS) && !defined(OS2)
2067 # define vim_handle_signal(x) 0
2068 #endif
2069
2070 /* flags for skip_vimgrep_pat() */
2071 #define VGR_GLOBAL      1
2072 #define VGR_NOJUMP      2
2073
2074 /* behavior for bad character, "++bad=" argument */
2075 #define BAD_REPLACE     '?'     /* replace it with '?' (default) */
2076 #define BAD_KEEP        -1      /* leave it */
2077 #define BAD_DROP        -2      /* erase it */
2078
2079 /* last argument for do_source() */
2080 #define DOSO_NONE       0
2081 #define DOSO_VIMRC      1       /* loading vimrc file */
2082 #define DOSO_GVIMRC     2       /* loading gvimrc file */
2083
2084 /* flags for read_viminfo() and children */
2085 #define VIF_WANT_INFO           1       /* load non-mark info */
2086 #define VIF_WANT_MARKS          2       /* load file marks */
2087 #define VIF_FORCEIT             4       /* overwrite info already read */
2088 #define VIF_GET_OLDFILES        8       /* load v:oldfiles */
2089
2090 #endif /* VIM__H */