xref: /vim-8.2.3635/src/vim.h (revision 17fb0e89)
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_PYTHON3) || \
17     defined(FEAT_RUBY) || \
18     defined(FEAT_TCL) || \
19     defined(FEAT_MZSCHEME) || \
20     defined(DYNAMIC_GETTEXT) || \
21     defined(DYNAMIC_ICONV) || \
22     defined(DYNAMIC_IME) || \
23     defined(XPM)
24   #pragma option -pc
25 # else
26   #pragma option -pr
27 # endif
28 #endif
29 
30 #if defined(MSDOS) || defined(WIN16) || defined(WIN32) || defined(_WIN64) \
31 	|| defined(__EMX__)
32 # include "vimio.h"
33 #endif
34 
35 /* ============ the header file puzzle (ca. 50-100 pieces) ========= */
36 
37 #ifdef HAVE_CONFIG_H	/* GNU autoconf (or something else) was here */
38 # include "auto/config.h"
39 # define HAVE_PATHDEF
40 
41 /*
42  * Check if configure correctly managed to find sizeof(int).  If this failed,
43  * it becomes zero.  This is likely a problem of not being able to run the
44  * test program.  Other items from configure may also be wrong then!
45  */
46 # if (SIZEOF_INT == 0)
47     Error: configure did not run properly.  Check auto/config.log.
48 # endif
49 
50 /*
51  * Cygwin may have fchdir() in a newer release, but in most versions it
52  * doesn't work well and avoiding it keeps the binary backward compatible.
53  */
54 # if defined(__CYGWIN32__) && defined(HAVE_FCHDIR)
55 #  undef HAVE_FCHDIR
56 # endif
57 
58 /* We may need to define the uint32_t on non-Unix system, but using the same
59  * identifier causes conflicts.  Therefore use UINT32_T. */
60 # define UINT32_TYPEDEF uint32_t
61 #endif
62 
63 #if !defined(UINT32_TYPEDEF)
64 # if defined(uint32_t)  /* this doesn't catch typedefs, unfortunately */
65 #  define UINT32_TYPEDEF uint32_t
66 # else
67   /* Fall back to assuming unsigned int is 32 bit.  If this is wrong then the
68    * test in blowfish.c will fail. */
69 #  define UINT32_TYPEDEF unsigned int
70 # endif
71 #endif
72 
73 /* user ID of root is usually zero, but not for everybody */
74 #ifdef __TANDEM
75 # ifndef _TANDEM_SOURCE
76 #  define _TANDEM_SOURCE
77 # endif
78 # include <floss.h>
79 # define ROOT_UID 65535
80 #else
81 # define ROOT_UID 0
82 #endif
83 
84 #ifdef __EMX__		/* hand-edited config.h for OS/2 with EMX */
85 # include "os_os2_cfg.h"
86 #endif
87 
88 /*
89  * MACOS_CLASSIC compiling for MacOS prior to MacOS X
90  * MACOS_X_UNIX  compiling for MacOS X (using os_unix.c)
91  * MACOS_X       compiling for MacOS X (using os_unix.c)
92  * MACOS	 compiling for either one
93  */
94 #if defined(macintosh) && !defined(MACOS_CLASSIC)
95 # define MACOS_CLASSIC
96 #endif
97 #if defined(MACOS_X_UNIX)
98 # define MACOS_X
99 # ifndef HAVE_CONFIG_H
100 #  define UNIX
101 # endif
102 # ifndef FEAT_CLIPBOARD
103 #  define FEAT_CLIPBOARD
104 # endif
105 #endif
106 #if defined(MACOS_X) || defined(MACOS_CLASSIC)
107 #  define MACOS
108 #endif
109 #if defined(MACOS_X) && defined(MACOS_CLASSIC)
110     Error: To compile for both MACOS X and Classic use a Classic Carbon
111 #endif
112 /* Unless made through the Makefile enforce GUI on Mac */
113 #if defined(MACOS) && !defined(HAVE_CONFIG_H)
114 # define FEAT_GUI_MAC
115 #endif
116 
117 #if defined(FEAT_GUI_MOTIF) \
118     || defined(FEAT_GUI_GTK) \
119     || defined(FEAT_GUI_ATHENA) \
120     || defined(FEAT_GUI_MAC) \
121     || defined(FEAT_GUI_W32) \
122     || defined(FEAT_GUI_W16) \
123     || defined(FEAT_GUI_PHOTON)
124 # define FEAT_GUI_ENABLED  /* also defined with NO_X11_INCLUDES */
125 # if !defined(FEAT_GUI) && !defined(NO_X11_INCLUDES)
126 #  define FEAT_GUI
127 # endif
128 #endif
129 
130 /* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */
131 #if _MSC_VER >= 1400
132 # define _CRT_SECURE_NO_DEPRECATE
133 # define _CRT_NONSTDC_NO_DEPRECATE
134 #endif
135 
136 #if defined(FEAT_GUI_W32) || defined(FEAT_GUI_W16)
137 # define FEAT_GUI_MSWIN
138 #endif
139 #if defined(WIN16) || defined(WIN32) || defined(_WIN64)
140 # define MSWIN
141 #endif
142 /* Practically everything is common to both Win32 and Win64 */
143 #if defined(WIN32) || defined(_WIN64)
144 # define WIN3264
145 #endif
146 
147 /*
148  * SIZEOF_INT is used in feature.h, and the system-specific included files
149  * need items from feature.h.  Therefore define SIZEOF_INT here.
150  */
151 #ifdef WIN3264
152 # define SIZEOF_INT 4
153 #endif
154 #ifdef MSDOS
155 # ifdef DJGPP
156 #  ifndef FEAT_GUI_GTK		/* avoid problems when generating prototypes */
157 #   define SIZEOF_INT 4		/* 32 bit ints */
158 #  endif
159 #  define DOS32
160 #  define FEAT_CLIPBOARD
161 # else
162 #  ifndef FEAT_GUI_GTK		/* avoid problems when generating prototypes */
163 #   define SIZEOF_INT 2		/* 16 bit ints */
164 #  endif
165 #  define SMALL_MALLOC		/* 16 bit storage allocation */
166 #  define DOS16
167 # endif
168 #endif
169 
170 #ifdef AMIGA
171   /* Be conservative about sizeof(int). It could be 4 too. */
172 # ifndef FEAT_GUI_GTK	/* avoid problems when generating prototypes */
173 #  ifdef __GNUC__
174 #   define SIZEOF_INT	4
175 #  else
176 #   define SIZEOF_INT	2
177 #  endif
178 # endif
179 #endif
180 #ifdef MACOS
181 # if defined(__POWERPC__) || defined(MACOS_X) || defined(__fourbyteints__) \
182   || defined(__MRC__) || defined(__SC__) || defined(__APPLE_CC__)/* MPW Compilers */
183 #  define SIZEOF_INT 4
184 # else
185 #  define SIZEOF_INT 2
186 # endif
187 #endif
188 
189 
190 #include "feature.h"	/* #defines for optionals and features */
191 
192 /* +x11 is only enabled when it's both available and wanted. */
193 #if defined(HAVE_X11) && defined(WANT_X11)
194 # define FEAT_X11
195 #endif
196 
197 #ifdef NO_X11_INCLUDES
198     /* In os_mac_conv.c and os_macosx.m NO_X11_INCLUDES is defined to avoid
199      * X11 headers.  Disable all X11 related things to avoid conflicts. */
200 # ifdef FEAT_X11
201 #  undef FEAT_X11
202 # endif
203 # ifdef FEAT_GUI_X11
204 #  undef FEAT_GUI_X11
205 # endif
206 # ifdef FEAT_XCLIPBOARD
207 #  undef FEAT_XCLIPBOARD
208 # endif
209 # ifdef FEAT_GUI_MOTIF
210 #  undef FEAT_GUI_MOTIF
211 # endif
212 # ifdef FEAT_GUI_ATHENA
213 #  undef FEAT_GUI_ATHENA
214 # endif
215 # ifdef FEAT_GUI_GTK
216 #  undef FEAT_GUI_GTK
217 # endif
218 # ifdef FEAT_BEVAL_TIP
219 #  undef FEAT_BEVAL_TIP
220 # endif
221 # ifdef FEAT_XIM
222 #  undef FEAT_XIM
223 # endif
224 # ifdef FEAT_CLIENTSERVER
225 #  undef FEAT_CLIENTSERVER
226 # endif
227 #endif
228 
229 /* The Mac conversion stuff doesn't work under X11. */
230 #if defined(FEAT_MBYTE) && defined(MACOS_X)
231 # define MACOS_CONVERT
232 #endif
233 
234 /* Can't use "PACKAGE" here, conflicts with a Perl include file. */
235 #ifndef VIMPACKAGE
236 # define VIMPACKAGE	"vim"
237 #endif
238 
239 /*
240  * Find out if function definitions should include argument types
241  */
242 #ifdef AZTEC_C
243 # include <functions.h>
244 # define __ARGS(x)  x
245 #endif
246 
247 #ifdef SASC
248 # include <clib/exec_protos.h>
249 # define __ARGS(x)  x
250 #endif
251 
252 #ifdef _DCC
253 # include <clib/exec_protos.h>
254 # define __ARGS(x)  x
255 #endif
256 
257 #ifdef __TURBOC__
258 # define __ARGS(x) x
259 #endif
260 
261 #ifdef __BEOS__
262 # include "os_beos.h"
263 # define __ARGS(x)  x
264 #endif
265 
266 #if (defined(UNIX) || defined(__EMX__) || defined(VMS)) \
267 	&& (!defined(MACOS_X) || defined(HAVE_CONFIG_H))
268 # include "os_unix.h"	    /* bring lots of system header files */
269 #endif
270 
271 #if defined(MACOS) && (defined(__MRC__) || defined(__SC__))
272    /* Apple's Compilers support prototypes */
273 # define __ARGS(x) x
274 #endif
275 #ifndef __ARGS
276 # if defined(__STDC__) || defined(__GNUC__) || defined(WIN3264)
277 #  define __ARGS(x) x
278 # else
279 #  define __ARGS(x) ()
280 # endif
281 #endif
282 
283 /* __ARGS and __PARMS are the same thing. */
284 #ifndef __PARMS
285 # define __PARMS(x) __ARGS(x)
286 #endif
287 
288 /* Mark unused function arguments with UNUSED, so that gcc -Wunused-parameter
289  * can be used to check for mistakes. */
290 #ifdef HAVE_ATTRIBUTE_UNUSED
291 # define UNUSED __attribute__((unused))
292 #else
293 # define UNUSED
294 #endif
295 
296 /* if we're compiling in C++ (currently only KVim), the system
297  * headers must have the correct prototypes or nothing will build.
298  * conversely, our prototypes might clash due to throw() specifiers and
299  * cause compilation failures even though the headers are correct.  For
300  * a concrete example, gcc-3.2 enforces exception specifications, and
301  * glibc-2.2.5 has them in their system headers.
302  */
303 #if !defined(__cplusplus) && defined(UNIX) \
304   && !defined(MACOS_X) /* MACOS_X doesn't yet support osdef.h */
305 # include "auto/osdef.h"	/* bring missing declarations in */
306 #endif
307 
308 #ifdef __EMX__
309 # define    getcwd  _getcwd2
310 # define    chdir   _chdir2
311 # undef	    CHECK_INODE
312 #endif
313 
314 #ifdef AMIGA
315 # include "os_amiga.h"
316 #endif
317 
318 #ifdef MSDOS
319 # include "os_msdos.h"
320 #endif
321 
322 #ifdef WIN16
323 # include "os_win16.h"
324 #endif
325 
326 #ifdef WIN3264
327 # include "os_win32.h"
328 #endif
329 
330 #ifdef __MINT__
331 # include "os_mint.h"
332 #endif
333 
334 #if defined(MACOS)
335 # if defined(__MRC__) || defined(__SC__) /* MPW Compilers */
336 #  define HAVE_SETENV
337 # endif
338 # include "os_mac.h"
339 #endif
340 
341 #ifdef __QNX__
342 # include "os_qnx.h"
343 #endif
344 
345 #ifdef FEAT_SUN_WORKSHOP
346 # include "workshop.h"
347 #endif
348 
349 #ifdef X_LOCALE
350 # include <X11/Xlocale.h>
351 #else
352 # ifdef HAVE_LOCALE_H
353 #  include <locale.h>
354 # endif
355 #endif
356 
357 /*
358  * Maximum length of a path (for non-unix systems) Make it a bit long, to stay
359  * on the safe side.  But not too long to put on the stack.
360  */
361 #ifndef MAXPATHL
362 # ifdef MAXPATHLEN
363 #  define MAXPATHL  MAXPATHLEN
364 # else
365 #  define MAXPATHL  256
366 # endif
367 #endif
368 #ifdef BACKSLASH_IN_FILENAME
369 # define PATH_ESC_CHARS ((char_u *)" \t\n*?[{`%#'\"|!<")
370 #else
371 # ifdef VMS
372     /* VMS allows a lot of characters in the file name */
373 #  define PATH_ESC_CHARS ((char_u *)" \t\n*?{`\\%#'\"|!")
374 #  define SHELL_ESC_CHARS ((char_u *)" \t\n*?{`\\%#'|!()&")
375 # else
376 #  define PATH_ESC_CHARS ((char_u *)" \t\n*?[{`$\\%#'\"|!<")
377 #  define SHELL_ESC_CHARS ((char_u *)" \t\n*?[{`$\\%#'\"|!<>();&")
378 # endif
379 #endif
380 
381 #define NUMBUFLEN 30	    /* length of a buffer to store a number in ASCII */
382 
383 /*
384  * Shorthand for unsigned variables. Many systems, but not all, have u_char
385  * already defined, so we use char_u to avoid trouble.
386  */
387 typedef unsigned char	char_u;
388 typedef unsigned short	short_u;
389 typedef unsigned int	int_u;
390 /* Make sure long_u is big enough to hold a pointer.
391  * On Win64, longs are 32 bits and pointers are 64 bits.
392  * For printf() and scanf(), we need to take care of long_u specifically. */
393 #ifdef _WIN64
394 typedef unsigned __int64	long_u;
395 typedef		 __int64	long_i;
396 # define SCANF_HEX_LONG_U       "%Ix"
397 # define SCANF_DECIMAL_LONG_U   "%Iu"
398 # define PRINTF_HEX_LONG_U      "0x%Ix"
399 #else
400   /* Microsoft-specific. The __w64 keyword should be specified on any typedefs
401    * that change size between 32-bit and 64-bit platforms.  For any such type,
402    * __w64 should appear only on the 32-bit definition of the typedef.
403    * Define __w64 as an empty token for everything but MSVC 7.x or later.
404    */
405 # if !defined(_MSC_VER)	|| (_MSC_VER < 1300)
406 #  define __w64
407 # endif
408 typedef unsigned long __w64	long_u;
409 typedef		 long __w64     long_i;
410 # define SCANF_HEX_LONG_U       "%lx"
411 # define SCANF_DECIMAL_LONG_U   "%lu"
412 # define PRINTF_HEX_LONG_U      "0x%lx"
413 #endif
414 #define PRINTF_DECIMAL_LONG_U SCANF_DECIMAL_LONG_U
415 
416 /*
417  * Only systems which use configure will have SIZEOF_OFF_T and SIZEOF_LONG
418  * defined, which is ok since those are the same systems which can have
419  * varying sizes for off_t.  The other systems will continue to use "%ld" to
420  * print off_t since off_t is simply a typedef to long for them.
421  */
422 #if defined(SIZEOF_OFF_T) && (SIZEOF_OFF_T > SIZEOF_LONG)
423 # define LONG_LONG_OFF_T
424 #endif
425 
426 /*
427  * The characters and attributes cached for the screen.
428  */
429 typedef char_u schar_T;
430 #ifdef FEAT_SYN_HL
431 typedef unsigned short sattr_T;
432 # define MAX_TYPENR 65535
433 #else
434 typedef unsigned char sattr_T;
435 # define MAX_TYPENR 255
436 #endif
437 
438 /*
439  * The u8char_T can hold one decoded UTF-8 character.
440  * We normally use 32 bits now, since some Asian characters don't fit in 16
441  * bits.  u8char_T is only used for displaying, it could be 16 bits to save
442  * memory.
443  */
444 #ifdef FEAT_MBYTE
445 # ifdef UNICODE16
446 typedef unsigned short u8char_T;    /* short should be 16 bits */
447 # else
448 #  if SIZEOF_INT >= 4
449 typedef unsigned int u8char_T;	    /* int is 32 bits */
450 #  else
451 typedef unsigned long u8char_T;	    /* long should be 32 bits or more */
452 #  endif
453 # endif
454 #endif
455 
456 #ifndef UNIX		    /* For Unix this is included in os_unix.h */
457 # include <stdio.h>
458 # include <ctype.h>
459 #endif
460 
461 #include "ascii.h"
462 #include "keymap.h"
463 #include "term.h"
464 #include "macros.h"
465 
466 #ifdef LATTICE
467 # include <sys/types.h>
468 # include <sys/stat.h>
469 #endif
470 #ifdef _DCC
471 # include <sys/stat.h>
472 #endif
473 #if defined(MSDOS) || defined(MSWIN)
474 # include <sys/stat.h>
475 #endif
476 
477 #if defined(HAVE_ERRNO_H) || defined(DJGPP) || defined(WIN16) \
478 	|| defined(WIN32) || defined(_WIN64) || defined(__EMX__)
479 # include <errno.h>
480 #endif
481 
482 /*
483  * Allow other (non-unix) systems to configure themselves now
484  * These are also in os_unix.h, because osdef.sh needs them there.
485  */
486 #ifndef UNIX
487 /* Note: Some systems need both string.h and strings.h (Savage).  If the
488  * system can't handle this, define NO_STRINGS_WITH_STRING_H. */
489 # ifdef HAVE_STRING_H
490 #  include <string.h>
491 # endif
492 # if defined(HAVE_STRINGS_H) && !defined(NO_STRINGS_WITH_STRING_H)
493 #   include <strings.h>
494 # endif
495 # ifdef HAVE_STAT_H
496 #  include <stat.h>
497 # endif
498 # ifdef HAVE_STDLIB_H
499 #  include <stdlib.h>
500 # endif
501 #endif /* NON-UNIX */
502 
503 #include <assert.h>
504 
505 #ifdef HAVE_STDINT_H
506 # include <stdint.h>
507 #endif
508 #ifdef HAVE_INTTYPES_H
509 # include <inttypes.h>
510 #endif
511 #ifdef HAVE_WCTYPE_H
512 # include <wctype.h>
513 #endif
514 #ifdef HAVE_STDARG_H
515 # include <stdarg.h>
516 #endif
517 
518 # if defined(HAVE_SYS_SELECT_H) && \
519 	(!defined(HAVE_SYS_TIME_H) || defined(SYS_SELECT_WITH_SYS_TIME))
520 #  include <sys/select.h>
521 # endif
522 
523 # ifndef HAVE_SELECT
524 #  ifdef HAVE_SYS_POLL_H
525 #   include <sys/poll.h>
526 #   define HAVE_POLL
527 #  else
528 #   ifdef HAVE_POLL_H
529 #    include <poll.h>
530 #    define HAVE_POLL
531 #   endif
532 #  endif
533 # endif
534 
535 /* ================ end of the header file puzzle =============== */
536 
537 /*
538  * For dynamically loaded imm library. Currently, only for Win32.
539  */
540 #ifdef DYNAMIC_IME
541 # ifndef FEAT_MBYTE_IME
542 #  define FEAT_MBYTE_IME
543 # endif
544 #endif
545 
546 /*
547  * Check input method control.
548  */
549 #if defined(FEAT_XIM) \
550     || (defined(FEAT_GUI) && (defined(FEAT_MBYTE_IME) || defined(GLOBAL_IME))) \
551     || (defined(FEAT_GUI_MAC) && defined(FEAT_MBYTE))
552 # define USE_IM_CONTROL
553 #endif
554 
555 /*
556  * For dynamically loaded gettext library.  Currently, only for Win32.
557  */
558 #ifdef DYNAMIC_GETTEXT
559 # ifndef FEAT_GETTEXT
560 #  define FEAT_GETTEXT
561 # endif
562 /* These are in os_win32.c */
563 extern char *(*dyn_libintl_gettext)(const char *msgid);
564 extern char *(*dyn_libintl_bindtextdomain)(const char *domainname, const char *dirname);
565 extern char *(*dyn_libintl_bind_textdomain_codeset)(const char *domainname, const char *codeset);
566 extern char *(*dyn_libintl_textdomain)(const char *domainname);
567 #endif
568 
569 
570 /*
571  * The _() stuff is for using gettext().  It is a no-op when libintl.h is not
572  * found or the +multilang feature is disabled.
573  */
574 #ifdef FEAT_GETTEXT
575 # ifdef DYNAMIC_GETTEXT
576 #  define _(x) (*dyn_libintl_gettext)((char *)(x))
577 #  define N_(x) x
578 #  define bindtextdomain(domain, dir) (*dyn_libintl_bindtextdomain)((domain), (dir))
579 #  define bind_textdomain_codeset(domain, codeset) (*dyn_libintl_bind_textdomain_codeset)((domain), (codeset))
580 #  if !defined(HAVE_BIND_TEXTDOMAIN_CODESET)
581 #   define HAVE_BIND_TEXTDOMAIN_CODESET 1
582 #  endif
583 #  define textdomain(domain) (*dyn_libintl_textdomain)(domain)
584 # else
585 #  include <libintl.h>
586 #  define _(x) gettext((char *)(x))
587 #  ifdef gettext_noop
588 #   define N_(x) gettext_noop(x)
589 #  else
590 #   define N_(x) x
591 #  endif
592 # endif
593 #else
594 # define _(x) ((char *)(x))
595 # define N_(x) x
596 # ifdef bindtextdomain
597 #  undef bindtextdomain
598 # endif
599 # define bindtextdomain(x, y) /* empty */
600 # ifdef bind_textdomain_codeset
601 #  undef bind_textdomain_codeset
602 # endif
603 # define bind_textdomain_codeset(x, y) /* empty */
604 # ifdef textdomain
605 #  undef textdomain
606 # endif
607 # define textdomain(x) /* empty */
608 #endif
609 
610 /*
611  * flags for update_screen()
612  * The higher the value, the higher the priority
613  */
614 #define VALID			10  /* buffer not changed, or changes marked
615 				       with b_mod_* */
616 #define INVERTED		20  /* redisplay inverted part that changed */
617 #define INVERTED_ALL		25  /* redisplay whole inverted part */
618 #define REDRAW_TOP		30  /* display first w_upd_rows screen lines */
619 #define SOME_VALID		35  /* like NOT_VALID but may scroll */
620 #define NOT_VALID		40  /* buffer needs complete redraw */
621 #define CLEAR			50  /* screen messed up, clear it */
622 
623 /*
624  * Flags for w_valid.
625  * These are set when something in a window structure becomes invalid, except
626  * when the cursor is moved.  Call check_cursor_moved() before testing one of
627  * the flags.
628  * These are reset when that thing has been updated and is valid again.
629  *
630  * Every function that invalidates one of these must call one of the
631  * invalidate_* functions.
632  *
633  * w_valid is supposed to be used only in screen.c.  From other files, use the
634  * functions that set or reset the flags.
635  *
636  * VALID_BOTLINE    VALID_BOTLINE_AP
637  *     on		on		w_botline valid
638  *     off		on		w_botline approximated
639  *     off		off		w_botline not valid
640  *     on		off		not possible
641  */
642 #define VALID_WROW	0x01	/* w_wrow (window row) is valid */
643 #define VALID_WCOL	0x02	/* w_wcol (window col) is valid */
644 #define VALID_VIRTCOL	0x04	/* w_virtcol (file col) is valid */
645 #define VALID_CHEIGHT	0x08	/* w_cline_height and w_cline_folded valid */
646 #define VALID_CROW	0x10	/* w_cline_row is valid */
647 #define VALID_BOTLINE	0x20	/* w_botine and w_empty_rows are valid */
648 #define VALID_BOTLINE_AP 0x40	/* w_botine is approximated */
649 #define VALID_TOPLINE	0x80	/* w_topline is valid (for cursor position) */
650 
651 /*
652  * Terminal highlighting attribute bits.
653  * Attributes above HL_ALL are used for syntax highlighting.
654  */
655 #define HL_NORMAL		0x00
656 #define HL_INVERSE		0x01
657 #define HL_BOLD			0x02
658 #define HL_ITALIC		0x04
659 #define HL_UNDERLINE		0x08
660 #define HL_UNDERCURL		0x10
661 #define HL_STANDOUT		0x20
662 #define HL_ALL			0x3f
663 
664 /* special attribute addition: Put message in history */
665 #define MSG_HIST		0x1000
666 
667 /*
668  * values for State
669  *
670  * The lower bits up to 0x20 are used to distinguish normal/visual/op_pending
671  * and cmdline/insert+replace mode.  This is used for mapping.  If none of
672  * these bits are set, no mapping is done.
673  * The upper bits are used to distinguish between other states.
674  */
675 #define NORMAL		0x01	/* Normal mode, command expected */
676 #define VISUAL		0x02	/* Visual mode - use get_real_state() */
677 #define OP_PENDING	0x04	/* Normal mode, operator is pending - use
678 				   get_real_state() */
679 #define CMDLINE		0x08	/* Editing command line */
680 #define INSERT		0x10	/* Insert mode */
681 #define LANGMAP		0x20	/* Language mapping, can be combined with
682 				   INSERT and CMDLINE */
683 
684 #define REPLACE_FLAG	0x40	/* Replace mode flag */
685 #define REPLACE		(REPLACE_FLAG + INSERT)
686 #ifdef FEAT_VREPLACE
687 # define VREPLACE_FLAG	0x80	/* Virtual-replace mode flag */
688 # define VREPLACE	(REPLACE_FLAG + VREPLACE_FLAG + INSERT)
689 #endif
690 #define LREPLACE	(REPLACE_FLAG + LANGMAP)
691 
692 #define NORMAL_BUSY	(0x100 + NORMAL) /* Normal mode, busy with a command */
693 #define HITRETURN	(0x200 + NORMAL) /* waiting for return or command */
694 #define ASKMORE		0x300	/* Asking if you want --more-- */
695 #define SETWSIZE	0x400	/* window size has changed */
696 #define ABBREV		0x500	/* abbreviation instead of mapping */
697 #define EXTERNCMD	0x600	/* executing an external command */
698 #define SHOWMATCH	(0x700 + INSERT) /* show matching paren */
699 #define CONFIRM		0x800	/* ":confirm" prompt */
700 #define SELECTMODE	0x1000	/* Select mode, only for mappings */
701 
702 #define MAP_ALL_MODES	(0x3f | SELECTMODE)	/* all mode bits used for
703 						 * mapping */
704 
705 /* directions */
706 #define FORWARD			1
707 #define BACKWARD		(-1)
708 #define FORWARD_FILE		3
709 #define BACKWARD_FILE		(-3)
710 
711 /* return values for functions */
712 #if !(defined(OK) && (OK == 1))
713 /* OK already defined to 1 in MacOS X curses, skip this */
714 # define OK			1
715 #endif
716 #define FAIL			0
717 #define NOTDONE			2   /* not OK or FAIL but skipped */
718 
719 /* flags for b_flags */
720 #define BF_RECOVERED	0x01	/* buffer has been recovered */
721 #define BF_CHECK_RO	0x02	/* need to check readonly when loading file
722 				   into buffer (set by ":e", may be reset by
723 				   ":buf" */
724 #define BF_NEVERLOADED	0x04	/* file has never been loaded into buffer,
725 				   many variables still need to be set */
726 #define BF_NOTEDITED	0x08	/* Set when file name is changed after
727 				   starting to edit, reset when file is
728 				   written out. */
729 #define BF_NEW		0x10	/* file didn't exist when editing started */
730 #define BF_NEW_W	0x20	/* Warned for BF_NEW and file created */
731 #define BF_READERR	0x40	/* got errors while reading the file */
732 #define BF_DUMMY	0x80	/* dummy buffer, only used internally */
733 #define BF_PRESERVED	0x100	/* ":preserve" was used */
734 
735 /* Mask to check for flags that prevent normal writing */
736 #define BF_WRITE_MASK	(BF_NOTEDITED + BF_NEW + BF_READERR)
737 
738 /*
739  * values for xp_context when doing command line completion
740  */
741 #define EXPAND_UNSUCCESSFUL	(-2)
742 #define EXPAND_OK		(-1)
743 #define EXPAND_NOTHING		0
744 #define EXPAND_COMMANDS		1
745 #define EXPAND_FILES		2
746 #define EXPAND_DIRECTORIES	3
747 #define EXPAND_SETTINGS		4
748 #define EXPAND_BOOL_SETTINGS	5
749 #define EXPAND_TAGS		6
750 #define EXPAND_OLD_SETTING	7
751 #define EXPAND_HELP		8
752 #define EXPAND_BUFFERS		9
753 #define EXPAND_EVENTS		10
754 #define EXPAND_MENUS		11
755 #define EXPAND_SYNTAX		12
756 #define EXPAND_HIGHLIGHT	13
757 #define EXPAND_AUGROUP		14
758 #define EXPAND_USER_VARS	15
759 #define EXPAND_MAPPINGS		16
760 #define EXPAND_TAGS_LISTFILES	17
761 #define EXPAND_FUNCTIONS	18
762 #define EXPAND_USER_FUNC	19
763 #define EXPAND_EXPRESSION	20
764 #define EXPAND_MENUNAMES	21
765 #define EXPAND_USER_COMMANDS	22
766 #define EXPAND_USER_CMD_FLAGS	23
767 #define EXPAND_USER_NARGS	24
768 #define EXPAND_USER_COMPLETE	25
769 #define EXPAND_ENV_VARS		26
770 #define EXPAND_LANGUAGE		27
771 #define EXPAND_COLORS		28
772 #define EXPAND_COMPILER		29
773 #define EXPAND_USER_DEFINED	30
774 #define EXPAND_USER_LIST	31
775 #define EXPAND_SHELLCMD		32
776 #define EXPAND_CSCOPE		33
777 #define EXPAND_SIGN		34
778 #define EXPAND_PROFILE		35
779 #define EXPAND_BEHAVE		36
780 #define EXPAND_FILETYPE		37
781 #define EXPAND_FILES_IN_PATH	38
782 #define EXPAND_OWNSYNTAX	39
783 #define EXPAND_LOCALES		40
784 
785 /* Values for exmode_active (0 is no exmode) */
786 #define EXMODE_NORMAL		1
787 #define EXMODE_VIM		2
788 
789 /* Values for nextwild() and ExpandOne().  See ExpandOne() for meaning. */
790 #define WILD_FREE		1
791 #define WILD_EXPAND_FREE	2
792 #define WILD_EXPAND_KEEP	3
793 #define WILD_NEXT		4
794 #define WILD_PREV		5
795 #define WILD_ALL		6
796 #define WILD_LONGEST		7
797 
798 #define WILD_LIST_NOTFOUND	1
799 #define WILD_HOME_REPLACE	2
800 #define WILD_USE_NL		4
801 #define WILD_NO_BEEP		8
802 #define WILD_ADD_SLASH		16
803 #define WILD_KEEP_ALL		32
804 #define WILD_SILENT		64
805 #define WILD_ESCAPE		128
806 #define WILD_ICASE		256
807 
808 /* Flags for expand_wildcards() */
809 #define EW_DIR		0x01	/* include directory names */
810 #define EW_FILE		0x02	/* include file names */
811 #define EW_NOTFOUND	0x04	/* include not found names */
812 #define EW_ADDSLASH	0x08	/* append slash to directory name */
813 #define EW_KEEPALL	0x10	/* keep all matches */
814 #define EW_SILENT	0x20	/* don't print "1 returned" from shell */
815 #define EW_EXEC		0x40	/* executable files */
816 #define EW_PATH		0x80	/* search in 'path' too */
817 #define EW_ICASE	0x100	/* ignore case */
818 #define EW_NOERROR	0x200	/* no error for bad regexp */
819 #define EW_NOTWILD	0x400	/* add match with literal name if exists */
820 /* Note: mostly EW_NOTFOUND and EW_SILENT are mutually exclusive: EW_NOTFOUND
821  * is used when executing commands and EW_SILENT for interactive expanding. */
822 
823 /* Flags for find_file_*() functions. */
824 #define FINDFILE_FILE	0	/* only files */
825 #define FINDFILE_DIR	1	/* only directories */
826 #define FINDFILE_BOTH	2	/* files and directories */
827 
828 #ifdef FEAT_VERTSPLIT
829 # define W_WINCOL(wp)	(wp->w_wincol)
830 # define W_WIDTH(wp)	(wp->w_width)
831 # define W_ENDCOL(wp)	(wp->w_wincol + wp->w_width)
832 # define W_VSEP_WIDTH(wp) (wp->w_vsep_width)
833 #else
834 # define W_WINCOL(wp)	0
835 # define W_WIDTH(wp)	Columns
836 # define W_ENDCOL(wp)	Columns
837 # define W_VSEP_WIDTH(wp) 0
838 #endif
839 #ifdef FEAT_WINDOWS
840 # define W_STATUS_HEIGHT(wp) (wp->w_status_height)
841 # define W_WINROW(wp)	(wp->w_winrow)
842 #else
843 # define W_STATUS_HEIGHT(wp) 0
844 # define W_WINROW(wp)	0
845 #endif
846 
847 #ifdef NO_EXPANDPATH
848 # define gen_expand_wildcards mch_expand_wildcards
849 #endif
850 
851 /* Values for the find_pattern_in_path() function args 'type' and 'action': */
852 #define FIND_ANY	1
853 #define FIND_DEFINE	2
854 #define CHECK_PATH	3
855 
856 #define ACTION_SHOW	1
857 #define ACTION_GOTO	2
858 #define ACTION_SPLIT	3
859 #define ACTION_SHOW_ALL	4
860 #ifdef FEAT_INS_EXPAND
861 # define ACTION_EXPAND	5
862 #endif
863 
864 #ifdef FEAT_SYN_HL
865 # define SST_MIN_ENTRIES 150	/* minimal size for state stack array */
866 # ifdef FEAT_GUI_W16
867 #  define SST_MAX_ENTRIES 500	/* (only up to 64K blocks) */
868 # else
869 #  define SST_MAX_ENTRIES 1000	/* maximal size for state stack array */
870 # endif
871 # define SST_FIX_STATES	 7	/* size of sst_stack[]. */
872 # define SST_DIST	 16	/* normal distance between entries */
873 # define SST_INVALID	(synstate_T *)-1	/* invalid syn_state pointer */
874 
875 # define HL_CONTAINED	0x01	/* not used on toplevel */
876 # define HL_TRANSP	0x02	/* has no highlighting	*/
877 # define HL_ONELINE	0x04	/* match within one line only */
878 # define HL_HAS_EOL	0x08	/* end pattern that matches with $ */
879 # define HL_SYNC_HERE	0x10	/* sync point after this item (syncing only) */
880 # define HL_SYNC_THERE	0x20	/* sync point at current line (syncing only) */
881 # define HL_MATCH	0x40	/* use match ID instead of item ID */
882 # define HL_SKIPNL	0x80	/* nextgroup can skip newlines */
883 # define HL_SKIPWHITE	0x100	/* nextgroup can skip white space */
884 # define HL_SKIPEMPTY	0x200	/* nextgroup can skip empty lines */
885 # define HL_KEEPEND	0x400	/* end match always kept */
886 # define HL_EXCLUDENL	0x800	/* exclude NL from match */
887 # define HL_DISPLAY	0x1000	/* only used for displaying, not syncing */
888 # define HL_FOLD	0x2000	/* define fold */
889 # define HL_EXTEND	0x4000	/* ignore a keepend */
890 # define HL_MATCHCONT	0x8000	/* match continued from previous line */
891 # define HL_TRANS_CONT	0x10000 /* transparent item without contains arg */
892 # define HL_CONCEAL	0x20000 /* can be concealed */
893 # define HL_CONCEALENDS	0x40000 /* can be concealed */
894 #endif
895 
896 /* Values for 'options' argument in do_search() and searchit() */
897 #define SEARCH_REV    0x01  /* go in reverse of previous dir. */
898 #define SEARCH_ECHO   0x02  /* echo the search command and handle options */
899 #define SEARCH_MSG    0x0c  /* give messages (yes, it's not 0x04) */
900 #define SEARCH_NFMSG  0x08  /* give all messages except not found */
901 #define SEARCH_OPT    0x10  /* interpret optional flags */
902 #define SEARCH_HIS    0x20  /* put search pattern in history */
903 #define SEARCH_END    0x40  /* put cursor at end of match */
904 #define SEARCH_NOOF   0x80  /* don't add offset to position */
905 #define SEARCH_START 0x100  /* start search without col offset */
906 #define SEARCH_MARK  0x200  /* set previous context mark */
907 #define SEARCH_KEEP  0x400  /* keep previous search pattern */
908 #define SEARCH_PEEK  0x800  /* peek for typed char, cancel search */
909 
910 /* Values for find_ident_under_cursor() */
911 #define FIND_IDENT	1	/* find identifier (word) */
912 #define FIND_STRING	2	/* find any string (WORD) */
913 #define FIND_EVAL	4	/* include "->", "[]" and "." */
914 
915 /* Values for file_name_in_line() */
916 #define FNAME_MESS	1	/* give error message */
917 #define FNAME_EXP	2	/* expand to path */
918 #define FNAME_HYP	4	/* check for hypertext link */
919 #define FNAME_INCL	8	/* apply 'includeexpr' */
920 #define FNAME_REL	16	/* ".." and "./" are relative to the (current)
921 				   file instead of the current directory */
922 
923 /* Values for buflist_getfile() */
924 #define GETF_SETMARK	0x01	/* set pcmark before jumping */
925 #define GETF_ALT	0x02	/* jumping to alternate file (not buf num) */
926 #define GETF_SWITCH	0x04	/* respect 'switchbuf' settings when jumping */
927 
928 /* Values for buflist_new() flags */
929 #define BLN_CURBUF	1	/* May re-use curbuf for new buffer */
930 #define BLN_LISTED	2	/* Put new buffer in buffer list */
931 #define BLN_DUMMY	4	/* Allocating dummy buffer */
932 
933 /* Values for in_cinkeys() */
934 #define KEY_OPEN_FORW	0x101
935 #define KEY_OPEN_BACK	0x102
936 #define KEY_COMPLETE	0x103	/* end of completion */
937 
938 /* Values for "noremap" argument of ins_typebuf().  Also used for
939  * map->m_noremap and menu->noremap[]. */
940 #define REMAP_YES	0	/* allow remapping */
941 #define REMAP_NONE	-1	/* no remapping */
942 #define REMAP_SCRIPT	-2	/* remap script-local mappings only */
943 #define REMAP_SKIP	-3	/* no remapping for first char */
944 
945 /* Values for mch_call_shell() second argument */
946 #define SHELL_FILTER	1	/* filtering text */
947 #define SHELL_EXPAND	2	/* expanding wildcards */
948 #define SHELL_COOKED	4	/* set term to cooked mode */
949 #define SHELL_DOOUT	8	/* redirecting output */
950 #define SHELL_SILENT	16	/* don't print error returned by command */
951 #define SHELL_READ	32	/* read lines and insert into buffer */
952 #define SHELL_WRITE	64	/* write lines from buffer */
953 
954 /* Values returned by mch_nodetype() */
955 #define NODE_NORMAL	0	/* file or directory, check with mch_isdir()*/
956 #define NODE_WRITABLE	1	/* something we can write to (character
957 				   device, fifo, socket, ..) */
958 #define NODE_OTHER	2	/* non-writable thing (e.g., block device) */
959 
960 /* Values for readfile() flags */
961 #define READ_NEW	0x01	/* read a file into a new buffer */
962 #define READ_FILTER	0x02	/* read filter output */
963 #define READ_STDIN	0x04	/* read from stdin */
964 #define READ_BUFFER	0x08	/* read from curbuf (converting stdin) */
965 #define READ_DUMMY	0x10	/* reading into a dummy buffer */
966 #define READ_KEEP_UNDO	0x20	/* keep undo info*/
967 
968 /* Values for change_indent() */
969 #define INDENT_SET	1	/* set indent */
970 #define INDENT_INC	2	/* increase indent */
971 #define INDENT_DEC	3	/* decrease indent */
972 
973 /* Values for flags argument for findmatchlimit() */
974 #define FM_BACKWARD	0x01	/* search backwards */
975 #define FM_FORWARD	0x02	/* search forwards */
976 #define FM_BLOCKSTOP	0x04	/* stop at start/end of block */
977 #define FM_SKIPCOMM	0x08	/* skip comments */
978 
979 /* Values for action argument for do_buffer() */
980 #define DOBUF_GOTO	0	/* go to specified buffer */
981 #define DOBUF_SPLIT	1	/* split window and go to specified buffer */
982 #define DOBUF_UNLOAD	2	/* unload specified buffer(s) */
983 #define DOBUF_DEL	3	/* delete specified buffer(s) from buflist */
984 #define DOBUF_WIPE	4	/* delete specified buffer(s) really */
985 
986 /* Values for start argument for do_buffer() */
987 #define DOBUF_CURRENT	0	/* "count" buffer from current buffer */
988 #define DOBUF_FIRST	1	/* "count" buffer from first buffer */
989 #define DOBUF_LAST	2	/* "count" buffer from last buffer */
990 #define DOBUF_MOD	3	/* "count" mod. buffer from current buffer */
991 
992 /* Values for sub_cmd and which_pat argument for search_regcomp() */
993 /* Also used for which_pat argument for searchit() */
994 #define RE_SEARCH	0	/* save/use pat in/from search_pattern */
995 #define RE_SUBST	1	/* save/use pat in/from subst_pattern */
996 #define RE_BOTH		2	/* save pat in both patterns */
997 #define RE_LAST		2	/* use last used pattern if "pat" is NULL */
998 
999 /* Second argument for vim_regcomp(). */
1000 #define RE_MAGIC	1	/* 'magic' option */
1001 #define RE_STRING	2	/* match in string instead of buffer text */
1002 #define RE_STRICT	4	/* don't allow [abc] without ] */
1003 
1004 #ifdef FEAT_SYN_HL
1005 /* values for reg_do_extmatch */
1006 # define REX_SET	1	/* to allow \z\(...\), */
1007 # define REX_USE	2	/* to allow \z\1 et al. */
1008 #endif
1009 
1010 /* Return values for fullpathcmp() */
1011 /* Note: can use (fullpathcmp() & FPC_SAME) to check for equal files */
1012 #define FPC_SAME	1	/* both exist and are the same file. */
1013 #define FPC_DIFF	2	/* both exist and are different files. */
1014 #define FPC_NOTX	4	/* both don't exist. */
1015 #define FPC_DIFFX	6	/* one of them doesn't exist. */
1016 #define FPC_SAMEX	7	/* both don't exist and file names are same. */
1017 
1018 /* flags for do_ecmd() */
1019 #define ECMD_HIDE	0x01	/* don't free the current buffer */
1020 #define ECMD_SET_HELP	0x02	/* set b_help flag of (new) buffer before
1021 				   opening file */
1022 #define ECMD_OLDBUF	0x04	/* use existing buffer if it exists */
1023 #define ECMD_FORCEIT	0x08	/* ! used in Ex command */
1024 #define ECMD_ADDBUF	0x10	/* don't edit, just add to buffer list */
1025 
1026 /* for lnum argument in do_ecmd() */
1027 #define ECMD_LASTL	(linenr_T)0	/* use last position in loaded file */
1028 #define ECMD_LAST	(linenr_T)-1	/* use last position in all files */
1029 #define ECMD_ONE	(linenr_T)1	/* use first line */
1030 
1031 /* flags for do_cmdline() */
1032 #define DOCMD_VERBOSE	0x01	/* included command in error message */
1033 #define DOCMD_NOWAIT	0x02	/* don't call wait_return() and friends */
1034 #define DOCMD_REPEAT	0x04	/* repeat exec. until getline() returns NULL */
1035 #define DOCMD_KEYTYPED	0x08	/* don't reset KeyTyped */
1036 #define DOCMD_EXCRESET	0x10	/* reset exception environment (for debugging)*/
1037 #define DOCMD_KEEPLINE  0x20	/* keep typed line for repeating with "." */
1038 
1039 /* flags for beginline() */
1040 #define BL_WHITE	1	/* cursor on first non-white in the line */
1041 #define BL_SOL		2	/* use 'sol' option */
1042 #define BL_FIX		4	/* don't leave cursor on a NUL */
1043 
1044 /* flags for mf_sync() */
1045 #define MFS_ALL		1	/* also sync blocks with negative numbers */
1046 #define MFS_STOP	2	/* stop syncing when a character is available */
1047 #define MFS_FLUSH	4	/* flushed file to disk */
1048 #define MFS_ZERO	8	/* only write block 0 */
1049 
1050 /* flags for buf_copy_options() */
1051 #define BCO_ENTER	1	/* going to enter the buffer */
1052 #define BCO_ALWAYS	2	/* always copy the options */
1053 #define BCO_NOHELP	4	/* don't touch the help related options */
1054 
1055 /* flags for do_put() */
1056 #define PUT_FIXINDENT	1	/* make indent look nice */
1057 #define PUT_CURSEND	2	/* leave cursor after end of new text */
1058 #define PUT_CURSLINE	4	/* leave cursor on last line of new text */
1059 #define PUT_LINE	8	/* put register as lines */
1060 #define PUT_LINE_SPLIT	16	/* split line for linewise register */
1061 #define PUT_LINE_FORWARD 32	/* put linewise register below Visual sel. */
1062 
1063 /* flags for set_indent() */
1064 #define SIN_CHANGED	1	/* call changed_bytes() when line changed */
1065 #define SIN_INSERT	2	/* insert indent before existing text */
1066 #define SIN_UNDO	4	/* save line for undo before changing it */
1067 
1068 /* flags for insertchar() */
1069 #define INSCHAR_FORMAT	1	/* force formatting */
1070 #define INSCHAR_DO_COM	2	/* format comments */
1071 #define INSCHAR_CTRLV	4	/* char typed just after CTRL-V */
1072 #define INSCHAR_NO_FEX	8	/* don't use 'formatexpr' */
1073 
1074 /* flags for open_line() */
1075 #define OPENLINE_DELSPACES  1	/* delete spaces after cursor */
1076 #define OPENLINE_DO_COM	    2	/* format comments */
1077 #define OPENLINE_KEEPTRAIL  4	/* keep trailing spaces */
1078 #define OPENLINE_MARKFIX    8	/* fix mark positions */
1079 
1080 /*
1081  * There are four history tables:
1082  */
1083 #define HIST_CMD	0	/* colon commands */
1084 #define HIST_SEARCH	1	/* search commands */
1085 #define HIST_EXPR	2	/* expressions (from entering = register) */
1086 #define HIST_INPUT	3	/* input() lines */
1087 #define HIST_DEBUG	4	/* debug commands */
1088 #define HIST_COUNT	5	/* number of history tables */
1089 
1090 /*
1091  * Flags for chartab[].
1092  */
1093 #define CT_CELL_MASK	0x07	/* mask: nr of display cells (1, 2 or 4) */
1094 #define CT_PRINT_CHAR	0x10	/* flag: set for printable chars */
1095 #define CT_ID_CHAR	0x20	/* flag: set for ID chars */
1096 #define CT_FNAME_CHAR	0x40	/* flag: set for file name chars */
1097 
1098 /*
1099  * Values for do_tag().
1100  */
1101 #define DT_TAG		1	/* jump to newer position or same tag again */
1102 #define DT_POP		2	/* jump to older position */
1103 #define DT_NEXT		3	/* jump to next match of same tag */
1104 #define DT_PREV		4	/* jump to previous match of same tag */
1105 #define DT_FIRST	5	/* jump to first match of same tag */
1106 #define DT_LAST		6	/* jump to first match of same tag */
1107 #define DT_SELECT	7	/* jump to selection from list */
1108 #define DT_HELP		8	/* like DT_TAG, but no wildcards */
1109 #define DT_JUMP		9	/* jump to new tag or selection from list */
1110 #define DT_CSCOPE	10	/* cscope find command (like tjump) */
1111 #define DT_LTAG		11	/* tag using location list */
1112 #define DT_FREE		99	/* free cached matches */
1113 
1114 /*
1115  * flags for find_tags().
1116  */
1117 #define TAG_HELP	1	/* only search for help tags */
1118 #define TAG_NAMES	2	/* only return name of tag */
1119 #define	TAG_REGEXP	4	/* use tag pattern as regexp */
1120 #define	TAG_NOIC	8	/* don't always ignore case */
1121 #ifdef FEAT_CSCOPE
1122 # define TAG_CSCOPE	16	/* cscope tag */
1123 #endif
1124 #define TAG_VERBOSE	32	/* message verbosity */
1125 #define TAG_INS_COMP	64	/* Currently doing insert completion */
1126 #define TAG_KEEP_LANG	128	/* keep current language */
1127 
1128 #define TAG_MANY	300	/* When finding many tags (for completion),
1129 				   find up to this many tags */
1130 
1131 /*
1132  * Types of dialogs passed to do_vim_dialog().
1133  */
1134 #define VIM_GENERIC	0
1135 #define VIM_ERROR	1
1136 #define VIM_WARNING	2
1137 #define VIM_INFO	3
1138 #define VIM_QUESTION	4
1139 #define VIM_LAST_TYPE	4	/* sentinel value */
1140 
1141 /*
1142  * Return values for functions like gui_yesnocancel()
1143  */
1144 #define VIM_YES		2
1145 #define VIM_NO		3
1146 #define VIM_CANCEL	4
1147 #define VIM_ALL		5
1148 #define VIM_DISCARDALL  6
1149 
1150 /*
1151  * arguments for win_split()
1152  */
1153 #define WSP_ROOM	1	/* require enough room */
1154 #define WSP_VERT	2	/* split vertically */
1155 #define WSP_TOP		4	/* window at top-left of shell */
1156 #define WSP_BOT		8	/* window at bottom-right of shell */
1157 #define WSP_HELP	16	/* creating the help window */
1158 #define WSP_BELOW	32	/* put new window below/right */
1159 #define WSP_ABOVE	64	/* put new window above/left */
1160 #define WSP_NEWLOC	128	/* don't copy location list */
1161 
1162 /*
1163  * arguments for gui_set_shellsize()
1164  */
1165 #define RESIZE_VERT	1	/* resize vertically */
1166 #define RESIZE_HOR	2	/* resize horizontally */
1167 #define RESIZE_BOTH	15	/* resize in both directions */
1168 
1169 /*
1170  * "flags" values for option-setting functions.
1171  * When OPT_GLOBAL and OPT_LOCAL are both missing, set both local and global
1172  * values, get local value.
1173  */
1174 #define OPT_FREE	1	/* free old value if it was allocated */
1175 #define OPT_GLOBAL	2	/* use global value */
1176 #define OPT_LOCAL	4	/* use local value */
1177 #define OPT_MODELINE	8	/* option in modeline */
1178 #define OPT_WINONLY	16	/* only set window-local options */
1179 #define OPT_NOWIN	32	/* don't set window-local options */
1180 
1181 /* Magic chars used in confirm dialog strings */
1182 #define DLG_BUTTON_SEP	'\n'
1183 #define DLG_HOTKEY_CHAR	'&'
1184 
1185 /* Values for "starting" */
1186 #define NO_SCREEN	2	/* no screen updating yet */
1187 #define NO_BUFFERS	1	/* not all buffers loaded yet */
1188 /*			0	   not starting anymore */
1189 
1190 /* Values for swap_exists_action: what to do when swap file already exists */
1191 #define SEA_NONE	0	/* don't use dialog */
1192 #define SEA_DIALOG	1	/* use dialog when possible */
1193 #define SEA_QUIT	2	/* quit editing the file */
1194 #define SEA_RECOVER	3	/* recover the file */
1195 
1196 /*
1197  * Minimal size for block 0 of a swap file.
1198  * NOTE: This depends on size of struct block0! It's not done with a sizeof(),
1199  * because struct block0 is defined in memline.c (Sorry).
1200  * The maximal block size is arbitrary.
1201  */
1202 #define MIN_SWAP_PAGE_SIZE 1048
1203 #define MAX_SWAP_PAGE_SIZE 50000
1204 
1205 /* Special values for current_SID. */
1206 #define SID_MODELINE	-1	/* when using a modeline */
1207 #define SID_CMDARG	-2	/* for "--cmd" argument */
1208 #define SID_CARG	-3	/* for "-c" argument */
1209 #define SID_ENV		-4	/* for sourcing environment variable */
1210 #define SID_ERROR	-5	/* option was reset because of an error */
1211 #define SID_NONE	-6	/* don't set scriptID */
1212 
1213 /*
1214  * Events for autocommands.
1215  */
1216 enum auto_event
1217 {
1218     EVENT_BUFADD = 0,		/* after adding a buffer to the buffer list */
1219     EVENT_BUFNEW,		/* after creating any buffer */
1220     EVENT_BUFDELETE,		/* deleting a buffer from the buffer list */
1221     EVENT_BUFWIPEOUT,		/* just before really deleting a buffer */
1222     EVENT_BUFENTER,		/* after entering a buffer */
1223     EVENT_BUFFILEPOST,		/* after renaming a buffer */
1224     EVENT_BUFFILEPRE,		/* before renaming a buffer */
1225     EVENT_BUFLEAVE,		/* before leaving a buffer */
1226     EVENT_BUFNEWFILE,		/* when creating a buffer for a new file */
1227     EVENT_BUFREADPOST,		/* after reading a buffer */
1228     EVENT_BUFREADPRE,		/* before reading a buffer */
1229     EVENT_BUFREADCMD,		/* read buffer using command */
1230     EVENT_BUFUNLOAD,		/* just before unloading a buffer */
1231     EVENT_BUFHIDDEN,		/* just after buffer becomes hidden */
1232     EVENT_BUFWINENTER,		/* after showing a buffer in a window */
1233     EVENT_BUFWINLEAVE,		/* just after buffer removed from window */
1234     EVENT_BUFWRITEPOST,		/* after writing a buffer */
1235     EVENT_BUFWRITEPRE,		/* before writing a buffer */
1236     EVENT_BUFWRITECMD,		/* write buffer using command */
1237     EVENT_CMDWINENTER,		/* after entering the cmdline window */
1238     EVENT_CMDWINLEAVE,		/* before leaving the cmdline window */
1239     EVENT_COLORSCHEME,		/* after loading a colorscheme */
1240     EVENT_FILEAPPENDPOST,	/* after appending to a file */
1241     EVENT_FILEAPPENDPRE,	/* before appending to a file */
1242     EVENT_FILEAPPENDCMD,	/* append to a file using command */
1243     EVENT_FILECHANGEDSHELL,	/* after shell command that changed file */
1244     EVENT_FILECHANGEDSHELLPOST,	/* after (not) reloading changed file */
1245     EVENT_FILECHANGEDRO,	/* before first change to read-only file */
1246     EVENT_FILEREADPOST,		/* after reading a file */
1247     EVENT_FILEREADPRE,		/* before reading a file */
1248     EVENT_FILEREADCMD,		/* read from a file using command */
1249     EVENT_FILETYPE,		/* new file type detected (user defined) */
1250     EVENT_FILEWRITEPOST,	/* after writing a file */
1251     EVENT_FILEWRITEPRE,		/* before writing a file */
1252     EVENT_FILEWRITECMD,		/* write to a file using command */
1253     EVENT_FILTERREADPOST,	/* after reading from a filter */
1254     EVENT_FILTERREADPRE,	/* before reading from a filter */
1255     EVENT_FILTERWRITEPOST,	/* after writing to a filter */
1256     EVENT_FILTERWRITEPRE,	/* before writing to a filter */
1257     EVENT_FOCUSGAINED,		/* got the focus */
1258     EVENT_FOCUSLOST,		/* lost the focus to another app */
1259     EVENT_GUIENTER,		/* after starting the GUI */
1260     EVENT_GUIFAILED,		/* after starting the GUI failed */
1261     EVENT_INSERTCHANGE,		/* when changing Insert/Replace mode */
1262     EVENT_INSERTENTER,		/* when entering Insert mode */
1263     EVENT_INSERTLEAVE,		/* when leaving Insert mode */
1264     EVENT_MENUPOPUP,		/* just before popup menu is displayed */
1265     EVENT_QUICKFIXCMDPOST,	/* after :make, :grep etc */
1266     EVENT_QUICKFIXCMDPRE,	/* before :make, :grep etc */
1267     EVENT_SESSIONLOADPOST,	/* after loading a session file */
1268     EVENT_STDINREADPOST,	/* after reading from stdin */
1269     EVENT_STDINREADPRE,		/* before reading from stdin */
1270     EVENT_SYNTAX,		/* syntax selected */
1271     EVENT_TERMCHANGED,		/* after changing 'term' */
1272     EVENT_TERMRESPONSE,		/* after setting "v:termresponse" */
1273     EVENT_USER,			/* user defined autocommand */
1274     EVENT_VIMENTER,		/* after starting Vim */
1275     EVENT_VIMLEAVE,		/* before exiting Vim */
1276     EVENT_VIMLEAVEPRE,		/* before exiting Vim and writing .viminfo */
1277     EVENT_VIMRESIZED,		/* after Vim window was resized */
1278     EVENT_WINENTER,		/* after entering a window */
1279     EVENT_WINLEAVE,		/* before leaving a window */
1280     EVENT_ENCODINGCHANGED,	/* after changing the 'encoding' option */
1281     EVENT_INSERTCHARPRE,	/* before inserting a char */
1282     EVENT_CURSORHOLD,		/* cursor in same position for a while */
1283     EVENT_CURSORHOLDI,		/* idem, in Insert mode */
1284     EVENT_FUNCUNDEFINED,	/* if calling a function which doesn't exist */
1285     EVENT_REMOTEREPLY,		/* upon string reception from a remote vim */
1286     EVENT_SWAPEXISTS,		/* found existing swap file */
1287     EVENT_SOURCEPRE,		/* before sourcing a Vim script */
1288     EVENT_SOURCECMD,		/* sourcing a Vim script using command */
1289     EVENT_SPELLFILEMISSING,	/* spell file missing */
1290     EVENT_CURSORMOVED,		/* cursor was moved */
1291     EVENT_CURSORMOVEDI,		/* cursor was moved in Insert mode */
1292     EVENT_TABLEAVE,		/* before leaving a tab page */
1293     EVENT_TABENTER,		/* after entering a tab page */
1294     EVENT_SHELLCMDPOST,		/* after ":!cmd" */
1295     EVENT_SHELLFILTERPOST,	/* after ":1,2!cmd", ":w !cmd", ":r !cmd". */
1296     NUM_EVENTS			/* MUST be the last one */
1297 };
1298 
1299 typedef enum auto_event event_T;
1300 
1301 /*
1302  * Values for index in highlight_attr[].
1303  * When making changes, also update HL_FLAGS below!  And update the default
1304  * value of 'highlight' in option.c.
1305  */
1306 typedef enum
1307 {
1308     HLF_8 = 0	    /* Meta & special keys listed with ":map", text that is
1309 		       displayed different from what it is */
1310     , HLF_AT	    /* @ and ~ characters at end of screen, characters that
1311 		       don't really exist in the text */
1312     , HLF_D	    /* directories in CTRL-D listing */
1313     , HLF_E	    /* error messages */
1314     , HLF_H	    /* obsolete, ignored */
1315     , HLF_I	    /* incremental search */
1316     , HLF_L	    /* last search string */
1317     , HLF_M	    /* "--More--" message */
1318     , HLF_CM	    /* Mode (e.g., "-- INSERT --") */
1319     , HLF_N	    /* line number for ":number" and ":#" commands */
1320     , HLF_R	    /* return to continue message and yes/no questions */
1321     , HLF_S	    /* status lines */
1322     , HLF_SNC	    /* status lines of not-current windows */
1323     , HLF_C	    /* column to separate vertically split windows */
1324     , HLF_T	    /* Titles for output from ":set all", ":autocmd" etc. */
1325     , HLF_V	    /* Visual mode */
1326     , HLF_VNC	    /* Visual mode, autoselecting and not clipboard owner */
1327     , HLF_W	    /* warning messages */
1328     , HLF_WM	    /* Wildmenu highlight */
1329     , HLF_FL	    /* Folded line */
1330     , HLF_FC	    /* Fold column */
1331     , HLF_ADD	    /* Added diff line */
1332     , HLF_CHD	    /* Changed diff line */
1333     , HLF_DED	    /* Deleted diff line */
1334     , HLF_TXD	    /* Text Changed in diff line */
1335     , HLF_CONCEAL   /* Concealed text */
1336     , HLF_SC	    /* Sign column */
1337     , HLF_SPB	    /* SpellBad */
1338     , HLF_SPC	    /* SpellCap */
1339     , HLF_SPR	    /* SpellRare */
1340     , HLF_SPL	    /* SpellLocal */
1341     , HLF_PNI	    /* popup menu normal item */
1342     , HLF_PSI	    /* popup menu selected item */
1343     , HLF_PSB	    /* popup menu scrollbar */
1344     , HLF_PST	    /* popup menu scrollbar thumb */
1345     , HLF_TP	    /* tabpage line */
1346     , HLF_TPS	    /* tabpage line selected */
1347     , HLF_TPF	    /* tabpage line filler */
1348     , HLF_CUC	    /* 'cursurcolumn' */
1349     , HLF_CUL	    /* 'cursurline' */
1350     , HLF_MC	    /* 'colorcolumn' */
1351     , HLF_COUNT	    /* MUST be the last one */
1352 } hlf_T;
1353 
1354 /* The HL_FLAGS must be in the same order as the HLF_ enums!
1355  * When changing this also adjust the default for 'highlight'. */
1356 #define HL_FLAGS {'8', '@', 'd', 'e', 'h', 'i', 'l', 'm', 'M', \
1357 		  'n', 'r', 's', 'S', 'c', 't', 'v', 'V', 'w', 'W', \
1358 		  'f', 'F', 'A', 'C', 'D', 'T', '-', '>', \
1359 		  'B', 'P', 'R', 'L', \
1360 		  '+', '=', 'x', 'X', '*', '#', '_', '!', '.', 'o'}
1361 
1362 /*
1363  * Boolean constants
1364  */
1365 #ifndef TRUE
1366 # define FALSE	0	    /* note: this is an int, not a long! */
1367 # define TRUE	1
1368 #endif
1369 
1370 #define MAYBE	2	    /* sometimes used for a variant on TRUE */
1371 
1372 #ifndef UINT32_T
1373 typedef UINT32_TYPEDEF UINT32_T;
1374 #endif
1375 
1376 /*
1377  * Operator IDs; The order must correspond to opchars[] in ops.c!
1378  */
1379 #define OP_NOP		0	/* no pending operation */
1380 #define OP_DELETE	1	/* "d"  delete operator */
1381 #define OP_YANK		2	/* "y"  yank operator */
1382 #define OP_CHANGE	3	/* "c"  change operator */
1383 #define OP_LSHIFT	4	/* "<"  left shift operator */
1384 #define OP_RSHIFT	5	/* ">"  right shift operator */
1385 #define OP_FILTER	6	/* "!"  filter operator */
1386 #define OP_TILDE	7	/* "g~" switch case operator */
1387 #define OP_INDENT	8	/* "="  indent operator */
1388 #define OP_FORMAT	9	/* "gq" format operator */
1389 #define OP_COLON	10	/* ":"  colon operator */
1390 #define OP_UPPER	11	/* "gU" make upper case operator */
1391 #define OP_LOWER	12	/* "gu" make lower case operator */
1392 #define OP_JOIN		13	/* "J"  join operator, only for Visual mode */
1393 #define OP_JOIN_NS	14	/* "gJ"  join operator, only for Visual mode */
1394 #define OP_ROT13	15	/* "g?" rot-13 encoding */
1395 #define OP_REPLACE	16	/* "r"  replace chars, only for Visual mode */
1396 #define OP_INSERT	17	/* "I"  Insert column, only for Visual mode */
1397 #define OP_APPEND	18	/* "A"  Append column, only for Visual mode */
1398 #define OP_FOLD		19	/* "zf" define a fold */
1399 #define OP_FOLDOPEN	20	/* "zo" open folds */
1400 #define OP_FOLDOPENREC	21	/* "zO" open folds recursively */
1401 #define OP_FOLDCLOSE	22	/* "zc" close folds */
1402 #define OP_FOLDCLOSEREC	23	/* "zC" close folds recursively */
1403 #define OP_FOLDDEL	24	/* "zd" delete folds */
1404 #define OP_FOLDDELREC	25	/* "zD" delete folds recursively */
1405 #define OP_FORMAT2	26	/* "gw" format operator, keeps cursor pos */
1406 #define OP_FUNCTION	27	/* "g@" call 'operatorfunc' */
1407 
1408 /*
1409  * Motion types, used for operators and for yank/delete registers.
1410  */
1411 #define MCHAR	0		/* character-wise movement/register */
1412 #define MLINE	1		/* line-wise movement/register */
1413 #define MBLOCK	2		/* block-wise register */
1414 
1415 #define MAUTO	0xff		/* Decide between MLINE/MCHAR */
1416 
1417 /*
1418  * Minimum screen size
1419  */
1420 #define MIN_COLUMNS	12	/* minimal columns for screen */
1421 #define MIN_LINES	2	/* minimal lines for screen */
1422 #define STATUS_HEIGHT	1	/* height of a status line under a window */
1423 #define QF_WINHEIGHT	10	/* default height for quickfix window */
1424 
1425 /*
1426  * Buffer sizes
1427  */
1428 #ifndef CMDBUFFSIZE
1429 # define CMDBUFFSIZE	256	/* size of the command processing buffer */
1430 #endif
1431 
1432 #define LSIZE	    512		/* max. size of a line in the tags file */
1433 
1434 #define IOSIZE	   (1024+1)	/* file i/o and sprintf buffer size */
1435 
1436 #define DIALOG_MSG_SIZE 1000	/* buffer size for dialog_msg() */
1437 
1438 #ifdef FEAT_MBYTE
1439 # define MSG_BUF_LEN 480	/* length of buffer for small messages */
1440 # define MSG_BUF_CLEN  (MSG_BUF_LEN / 6)    /* cell length (worst case: utf-8
1441 					       takes 6 bytes for one cell) */
1442 #else
1443 # define MSG_BUF_LEN 80		/* length of buffer for small messages */
1444 # define MSG_BUF_CLEN  MSG_BUF_LEN	    /* cell length */
1445 #endif
1446 
1447 /* Size of the buffer used for tgetent().  Unfortunately this is largely
1448  * undocumented, some systems use 1024.  Using a buffer that is too small
1449  * causes a buffer overrun and a crash.  Use the maximum known value to stay
1450  * on the safe side. */
1451 #define TBUFSZ 2048		/* buffer size for termcap entry */
1452 
1453 /*
1454  * Maximum length of key sequence to be mapped.
1455  * Must be able to hold an Amiga resize report.
1456  */
1457 #define MAXMAPLEN   50
1458 
1459 /* Size in bytes of the hash used in the undo file. */
1460 #define UNDO_HASH_SIZE 32
1461 
1462 #ifdef HAVE_FCNTL_H
1463 # include <fcntl.h>
1464 #endif
1465 
1466 #ifdef BINARY_FILE_IO
1467 # define WRITEBIN   "wb"	/* no CR-LF translation */
1468 # define READBIN    "rb"
1469 # define APPENDBIN  "ab"
1470 #else
1471 # define WRITEBIN   "w"
1472 # define READBIN    "r"
1473 # define APPENDBIN  "a"
1474 #endif
1475 
1476 /*
1477  * EMX doesn't have a global way of making open() use binary I/O.
1478  * Use O_BINARY for all open() calls.
1479  */
1480 #if defined(__EMX__) || defined(__CYGWIN32__)
1481 # define O_EXTRA    O_BINARY
1482 #else
1483 # define O_EXTRA    0
1484 #endif
1485 
1486 #ifndef O_NOFOLLOW
1487 # define O_NOFOLLOW 0
1488 #endif
1489 
1490 #ifndef W_OK
1491 # define W_OK 2		/* for systems that don't have W_OK in unistd.h */
1492 #endif
1493 #ifndef R_OK
1494 # define R_OK 4		/* for systems that don't have R_OK in unistd.h */
1495 #endif
1496 
1497 /*
1498  * defines to avoid typecasts from (char_u *) to (char *) and back
1499  * (vim_strchr() and vim_strrchr() are now in alloc.c)
1500  */
1501 #define STRLEN(s)	    strlen((char *)(s))
1502 #define STRCPY(d, s)	    strcpy((char *)(d), (char *)(s))
1503 #define STRNCPY(d, s, n)    strncpy((char *)(d), (char *)(s), (size_t)(n))
1504 #define STRCMP(d, s)	    strcmp((char *)(d), (char *)(s))
1505 #define STRNCMP(d, s, n)    strncmp((char *)(d), (char *)(s), (size_t)(n))
1506 #ifdef HAVE_STRCASECMP
1507 # define STRICMP(d, s)	    strcasecmp((char *)(d), (char *)(s))
1508 #else
1509 # ifdef HAVE_STRICMP
1510 #  define STRICMP(d, s)	    stricmp((char *)(d), (char *)(s))
1511 # else
1512 #  define STRICMP(d, s)	    vim_stricmp((char *)(d), (char *)(s))
1513 # endif
1514 #endif
1515 
1516 /* Like strcpy() but allows overlapped source and destination. */
1517 #define STRMOVE(d, s)	    mch_memmove((d), (s), STRLEN(s) + 1)
1518 
1519 #ifdef HAVE_STRNCASECMP
1520 # define STRNICMP(d, s, n)  strncasecmp((char *)(d), (char *)(s), (size_t)(n))
1521 #else
1522 # ifdef HAVE_STRNICMP
1523 #  define STRNICMP(d, s, n) strnicmp((char *)(d), (char *)(s), (size_t)(n))
1524 # else
1525 #  define STRNICMP(d, s, n) vim_strnicmp((char *)(d), (char *)(s), (size_t)(n))
1526 # endif
1527 #endif
1528 
1529 #ifdef FEAT_MBYTE
1530 /* We need to call mb_stricmp() even when we aren't dealing with a multi-byte
1531  * encoding because mb_stricmp() takes care of all ascii and non-ascii
1532  * encodings, including characters with umlauts in latin1, etc., while
1533  * STRICMP() only handles the system locale version, which often does not
1534  * handle non-ascii properly. */
1535 
1536 # define MB_STRICMP(d, s)	mb_strnicmp((char_u *)(d), (char_u *)(s), (int)MAXCOL)
1537 # define MB_STRNICMP(d, s, n)	mb_strnicmp((char_u *)(d), (char_u *)(s), (int)(n))
1538 #else
1539 # define MB_STRICMP(d, s)	STRICMP((d), (s))
1540 # define MB_STRNICMP(d, s, n)	STRNICMP((d), (s), (n))
1541 #endif
1542 
1543 #define STRCAT(d, s)	    strcat((char *)(d), (char *)(s))
1544 #define STRNCAT(d, s, n)    strncat((char *)(d), (char *)(s), (size_t)(n))
1545 
1546 #ifdef HAVE_STRPBRK
1547 # define vim_strpbrk(s, cs) (char_u *)strpbrk((char *)(s), (char *)(cs))
1548 #endif
1549 
1550 #define MSG(s)			    msg((char_u *)(s))
1551 #define MSG_ATTR(s, attr)	    msg_attr((char_u *)(s), (attr))
1552 #define EMSG(s)			    emsg((char_u *)(s))
1553 #define EMSG2(s, p)		    emsg2((char_u *)(s), (char_u *)(p))
1554 #define EMSG3(s, p, q)		    emsg3((char_u *)(s), (char_u *)(p), (char_u *)(q))
1555 #define EMSGN(s, n)		    emsgn((char_u *)(s), (long)(n))
1556 #define EMSGU(s, n)		    emsgu((char_u *)(s), (long_u)(n))
1557 #define OUT_STR(s)		    out_str((char_u *)(s))
1558 #define OUT_STR_NF(s)		    out_str_nf((char_u *)(s))
1559 #define MSG_PUTS(s)		    msg_puts((char_u *)(s))
1560 #define MSG_PUTS_ATTR(s, a)	    msg_puts_attr((char_u *)(s), (a))
1561 #define MSG_PUTS_TITLE(s)	    msg_puts_title((char_u *)(s))
1562 #define MSG_PUTS_LONG(s)	    msg_puts_long_attr((char_u *)(s), 0)
1563 #define MSG_PUTS_LONG_ATTR(s, a)    msg_puts_long_attr((char_u *)(s), (a))
1564 
1565 /* Prefer using emsg3(), because perror() may send the output to the wrong
1566  * destination and mess up the screen. */
1567 #ifdef HAVE_STRERROR
1568 # define PERROR(msg)		    (void)emsg3((char_u *)"%s: %s", (char_u *)msg, (char_u *)strerror(errno))
1569 #else
1570 # define PERROR(msg)		    perror(msg)
1571 #endif
1572 
1573 typedef long	linenr_T;		/* line number type */
1574 typedef int	colnr_T;		/* column number type */
1575 typedef unsigned short disptick_T;	/* display tick type */
1576 
1577 #define MAXLNUM (0x7fffffffL)		/* maximum (invalid) line number */
1578 
1579 /*
1580  * Well, you won't believe it, but some S/390 machines ("host", now also known
1581  * as zServer) use 31 bit pointers. There are also some newer machines, that
1582  * use 64 bit pointers. I don't know how to distinguish between 31 and 64 bit
1583  * machines, so the best way is to assume 31 bits whenever we detect OS/390
1584  * Unix.
1585  * With this we restrict the maximum line length to 1073741823. I guess this is
1586  * not a real problem. BTW:  Longer lines are split.
1587  */
1588 #if SIZEOF_INT >= 4
1589 # ifdef __MVS__
1590 #  define MAXCOL (0x3fffffffL)		/* maximum column number, 30 bits */
1591 # else
1592 #  define MAXCOL (0x7fffffffL)		/* maximum column number, 31 bits */
1593 # endif
1594 #else
1595 # define MAXCOL	(0x7fff)		/* maximum column number, 15 bits */
1596 #endif
1597 
1598 #define SHOWCMD_COLS 10			/* columns needed by shown command */
1599 #define STL_MAX_ITEM 80			/* max nr of %<flag> in statusline */
1600 
1601 typedef void	    *vim_acl_T;		/* dummy to pass an ACL to a function */
1602 
1603 /*
1604  * Include a prototype for mch_memmove(), it may not be in alloc.pro.
1605  */
1606 #ifdef VIM_MEMMOVE
1607 void mch_memmove __ARGS((void *, void *, size_t));
1608 #else
1609 # ifndef mch_memmove
1610 #  define mch_memmove(to, from, len) memmove(to, from, len)
1611 # endif
1612 #endif
1613 
1614 /*
1615  * fnamecmp() is used to compare file names.
1616  * On some systems case in a file name does not matter, on others it does.
1617  * (this does not account for maximum name lengths and things like "../dir",
1618  * thus it is not 100% accurate!)
1619  */
1620 #ifdef CASE_INSENSITIVE_FILENAME
1621 # ifdef BACKSLASH_IN_FILENAME
1622 #  define fnamecmp(x, y) vim_fnamecmp((x), (y))
1623 #  define fnamencmp(x, y, n) vim_fnamencmp((x), (y), (size_t)(n))
1624 # else
1625 #  define fnamecmp(x, y) MB_STRICMP((x), (y))
1626 #  define fnamencmp(x, y, n) MB_STRNICMP((x), (y), (n))
1627 # endif
1628 #else
1629 # define fnamecmp(x, y) strcmp((char *)(x), (char *)(y))
1630 # define fnamencmp(x, y, n) strncmp((char *)(x), (char *)(y), (size_t)(n))
1631 #endif
1632 
1633 #ifdef HAVE_MEMSET
1634 # define vim_memset(ptr, c, size)   memset((ptr), (c), (size))
1635 #else
1636 void *vim_memset __ARGS((void *, int, size_t));
1637 #endif
1638 
1639 #ifdef HAVE_MEMCMP
1640 # define vim_memcmp(p1, p2, len)   memcmp((p1), (p2), (len))
1641 #else
1642 # ifdef HAVE_BCMP
1643 #  define vim_memcmp(p1, p2, len)   bcmp((p1), (p2), (len))
1644 # else
1645 int vim_memcmp __ARGS((void *, void *, size_t));
1646 #  define VIM_MEMCMP
1647 # endif
1648 #endif
1649 
1650 #if defined(UNIX) || defined(FEAT_GUI) || defined(OS2) || defined(VMS) \
1651 	|| defined(FEAT_CLIENTSERVER)
1652 # define USE_INPUT_BUF
1653 #endif
1654 
1655 #ifndef EINTR
1656 # define read_eintr(fd, buf, count) vim_read((fd), (buf), (count))
1657 # define write_eintr(fd, buf, count) vim_write((fd), (buf), (count))
1658 #endif
1659 
1660 #ifdef MSWIN
1661 /* On MS-Windows the third argument isn't size_t.  This matters for Win64,
1662  * where sizeof(size_t)==8, not 4 */
1663 # define vim_read(fd, buf, count)   read((fd), (char *)(buf), (unsigned int)(count))
1664 # define vim_write(fd, buf, count)  write((fd), (char *)(buf), (unsigned int)(count))
1665 #else
1666 # define vim_read(fd, buf, count)   read((fd), (char *)(buf), (size_t) (count))
1667 # define vim_write(fd, buf, count)  write((fd), (char *)(buf), (size_t) (count))
1668 #endif
1669 
1670 /*
1671  * Enums need a typecast to be used as array index (for Ultrix).
1672  */
1673 #define hl_attr(n)	highlight_attr[(int)(n)]
1674 #define term_str(n)	term_strings[(int)(n)]
1675 
1676 /*
1677  * vim_iswhite() is used for "^" and the like. It differs from isspace()
1678  * because it doesn't include <CR> and <LF> and the like.
1679  */
1680 #define vim_iswhite(x)	((x) == ' ' || (x) == '\t')
1681 
1682 /*
1683  * EXTERN is only defined in main.c.  That's where global variables are
1684  * actually defined and initialized.
1685  */
1686 #ifndef EXTERN
1687 # define EXTERN extern
1688 # define INIT(x)
1689 #else
1690 # ifndef INIT
1691 #  define INIT(x) x
1692 #  define DO_INIT
1693 # endif
1694 #endif
1695 
1696 #ifdef FEAT_MBYTE
1697 # define MAX_MCO	6	/* maximum value for 'maxcombine' */
1698 
1699 /* Maximum number of bytes in a multi-byte character.  It can be one 32-bit
1700  * character of up to 6 bytes, or one 16-bit character of up to three bytes
1701  * plus six following composing characters of three bytes each. */
1702 # define MB_MAXBYTES	21
1703 #endif
1704 
1705 #if (defined(FEAT_PROFILE) || defined(FEAT_RELTIME)) && !defined(PROTO)
1706 # ifdef WIN3264
1707 typedef LARGE_INTEGER proftime_T;
1708 # else
1709 typedef struct timeval proftime_T;
1710 # endif
1711 #else
1712 typedef int proftime_T;	    /* dummy for function prototypes */
1713 #endif
1714 
1715 /* Include option.h before structs.h, because the number of window-local and
1716  * buffer-local options is used there. */
1717 #include "option.h"	    /* options and default values */
1718 
1719 /* Note that gui.h is included by structs.h */
1720 
1721 #include "structs.h"	    /* file that defines many structures */
1722 
1723 /* Values for "do_profiling". */
1724 #define PROF_NONE	0	/* profiling not started */
1725 #define PROF_YES	1	/* profiling busy */
1726 #define PROF_PAUSED	2	/* profiling paused */
1727 
1728 #ifdef FEAT_MOUSE
1729 
1730 /* Codes for mouse button events in lower three bits: */
1731 # define MOUSE_LEFT	0x00
1732 # define MOUSE_MIDDLE	0x01
1733 # define MOUSE_RIGHT	0x02
1734 # define MOUSE_RELEASE	0x03
1735 
1736 /* bit masks for modifiers: */
1737 # define MOUSE_SHIFT	0x04
1738 # define MOUSE_ALT	0x08
1739 # define MOUSE_CTRL	0x10
1740 
1741 /* mouse buttons that are handled like a key press (GUI only) */
1742 /* Note that the scroll wheel keys are inverted: MOUSE_5 scrolls lines up but
1743  * the result of this is that the window moves down, similarly MOUSE_6 scrolls
1744  * columns left but the window moves right. */
1745 # define MOUSE_4	0x100	/* scroll wheel down */
1746 # define MOUSE_5	0x200	/* scroll wheel up */
1747 
1748 # define MOUSE_X1	0x300 /* Mouse-button X1 (6th) */
1749 # define MOUSE_X2	0x400 /* Mouse-button X2 */
1750 
1751 # define MOUSE_6	0x500	/* scroll wheel left */
1752 # define MOUSE_7	0x600	/* scroll wheel right */
1753 
1754 /* 0x20 is reserved by xterm */
1755 # define MOUSE_DRAG_XTERM   0x40
1756 
1757 # define MOUSE_DRAG	(0x40 | MOUSE_RELEASE)
1758 
1759 /* Lowest button code for using the mouse wheel (xterm only) */
1760 # define MOUSEWHEEL_LOW		0x60
1761 
1762 # define MOUSE_CLICK_MASK	0x03
1763 
1764 # define NUM_MOUSE_CLICKS(code) \
1765     (((unsigned)((code) & 0xC0) >> 6) + 1)
1766 
1767 # define SET_NUM_MOUSE_CLICKS(code, num) \
1768     (code) = ((code) & 0x3f) | ((((num) - 1) & 3) << 6)
1769 
1770 /* Added to mouse column for GUI when 'mousefocus' wants to give focus to a
1771  * window by simulating a click on its status line.  We could use up to 128 *
1772  * 128 = 16384 columns, now it's reduced to 10000. */
1773 # define MOUSE_COLOFF 10000
1774 
1775 /*
1776  * jump_to_mouse() returns one of first four these values, possibly with
1777  * some of the other three added.
1778  */
1779 # define IN_UNKNOWN		0
1780 # define IN_BUFFER		1
1781 # define IN_STATUS_LINE		2	/* on status or command line */
1782 # define IN_SEP_LINE		4	/* on vertical separator line */
1783 # define IN_OTHER_WIN		8	/* in other window but can't go there */
1784 # define CURSOR_MOVED		0x100
1785 # define MOUSE_FOLD_CLOSE	0x200	/* clicked on '-' in fold column */
1786 # define MOUSE_FOLD_OPEN	0x400	/* clicked on '+' in fold column */
1787 
1788 /* flags for jump_to_mouse() */
1789 # define MOUSE_FOCUS		0x01	/* need to stay in this window */
1790 # define MOUSE_MAY_VIS		0x02	/* may start Visual mode */
1791 # define MOUSE_DID_MOVE		0x04	/* only act when mouse has moved */
1792 # define MOUSE_SETPOS		0x08	/* only set current mouse position */
1793 # define MOUSE_MAY_STOP_VIS	0x10	/* may stop Visual mode */
1794 # define MOUSE_RELEASED		0x20	/* button was released */
1795 
1796 # if defined(UNIX) && defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
1797 #  define CHECK_DOUBLE_CLICK 1	/* Checking for double clicks ourselves. */
1798 # endif
1799 
1800 #endif /* FEAT_MOUSE */
1801 
1802 /* defines for eval_vars() */
1803 #define VALID_PATH		1
1804 #define VALID_HEAD		2
1805 
1806 /* Defines for Vim variables.  These must match vimvars[] in eval.c! */
1807 #define VV_COUNT	0
1808 #define VV_COUNT1	1
1809 #define VV_PREVCOUNT	2
1810 #define VV_ERRMSG	3
1811 #define VV_WARNINGMSG	4
1812 #define VV_STATUSMSG	5
1813 #define VV_SHELL_ERROR	6
1814 #define VV_THIS_SESSION	7
1815 #define VV_VERSION	8
1816 #define VV_LNUM		9
1817 #define VV_TERMRESPONSE	10
1818 #define VV_FNAME	11
1819 #define VV_LANG		12
1820 #define VV_LC_TIME	13
1821 #define VV_CTYPE	14
1822 #define VV_CC_FROM	15
1823 #define VV_CC_TO	16
1824 #define VV_FNAME_IN	17
1825 #define VV_FNAME_OUT	18
1826 #define VV_FNAME_NEW	19
1827 #define VV_FNAME_DIFF	20
1828 #define VV_CMDARG	21
1829 #define VV_FOLDSTART	22
1830 #define VV_FOLDEND	23
1831 #define VV_FOLDDASHES	24
1832 #define VV_FOLDLEVEL	25
1833 #define VV_PROGNAME	26
1834 #define VV_SEND_SERVER	27
1835 #define VV_DYING	28
1836 #define VV_EXCEPTION	29
1837 #define VV_THROWPOINT	30
1838 #define VV_REG		31
1839 #define VV_CMDBANG	32
1840 #define VV_INSERTMODE	33
1841 #define VV_VAL		34
1842 #define VV_KEY		35
1843 #define VV_PROFILING	36
1844 #define VV_FCS_REASON	37
1845 #define VV_FCS_CHOICE	38
1846 #define VV_BEVAL_BUFNR	39
1847 #define VV_BEVAL_WINNR	40
1848 #define VV_BEVAL_LNUM	41
1849 #define VV_BEVAL_COL	42
1850 #define VV_BEVAL_TEXT	43
1851 #define VV_SCROLLSTART	44
1852 #define VV_SWAPNAME	45
1853 #define VV_SWAPCHOICE	46
1854 #define VV_SWAPCOMMAND	47
1855 #define VV_CHAR		48
1856 #define VV_MOUSE_WIN	49
1857 #define VV_MOUSE_LNUM   50
1858 #define VV_MOUSE_COL	51
1859 #define VV_OP		52
1860 #define VV_SEARCHFORWARD 53
1861 #define VV_OLDFILES	54
1862 #define VV_WINDOWID	55
1863 #define VV_LEN		56	/* number of v: vars */
1864 
1865 #ifdef FEAT_CLIPBOARD
1866 
1867 /* VIM_ATOM_NAME is the older Vim-specific selection type for X11.  Still
1868  * supported for when a mix of Vim versions is used. VIMENC_ATOM_NAME includes
1869  * the encoding to support Vims using different 'encoding' values. */
1870 #define VIM_ATOM_NAME "_VIM_TEXT"
1871 #define VIMENC_ATOM_NAME "_VIMENC_TEXT"
1872 
1873 /* Selection states for modeless selection */
1874 # define SELECT_CLEARED		0
1875 # define SELECT_IN_PROGRESS	1
1876 # define SELECT_DONE		2
1877 
1878 # define SELECT_MODE_CHAR	0
1879 # define SELECT_MODE_WORD	1
1880 # define SELECT_MODE_LINE	2
1881 
1882 # ifdef FEAT_GUI_W32
1883 #  ifdef FEAT_OLE
1884 #   define WM_OLE (WM_APP+0)
1885 #  endif
1886 #  ifdef FEAT_NETBEANS_INTG
1887     /* message for Netbeans socket event */
1888 #   define WM_NETBEANS (WM_APP+1)
1889 #  endif
1890 # endif
1891 
1892 /* Info about selected text */
1893 typedef struct VimClipboard
1894 {
1895     int		available;	/* Is clipboard available? */
1896     int		owned;		/* Flag: do we own the selection? */
1897     pos_T	start;		/* Start of selected area */
1898     pos_T	end;		/* End of selected area */
1899     int		vmode;		/* Visual mode character */
1900 
1901     /* Fields for selection that doesn't use Visual mode */
1902     short_u	origin_row;
1903     short_u	origin_start_col;
1904     short_u	origin_end_col;
1905     short_u	word_start_col;
1906     short_u	word_end_col;
1907 
1908     pos_T	prev;		/* Previous position */
1909     short_u	state;		/* Current selection state */
1910     short_u	mode;		/* Select by char, word, or line. */
1911 
1912 # if defined(FEAT_GUI_X11) || defined(FEAT_XCLIPBOARD)
1913     Atom	sel_atom;	/* PRIMARY/CLIPBOARD selection ID */
1914 # endif
1915 
1916 # ifdef FEAT_GUI_GTK
1917     GdkAtom     gtk_sel_atom;	/* PRIMARY/CLIPBOARD selection ID */
1918 # endif
1919 
1920 # ifdef MSWIN
1921     int_u	format;		/* Vim's own special clipboard format */
1922     int_u	format_raw;	/* Vim's raw text clipboard format */
1923 # endif
1924 } VimClipboard;
1925 #else
1926 typedef int VimClipboard;	/* This is required for the prototypes. */
1927 #endif
1928 
1929 #ifdef __BORLANDC__
1930 /* work around a bug in the Borland 'stat' function: */
1931 # include <io.h>	    /* for access() */
1932 
1933 # define stat(a,b) (access(a,0) ? -1 : stat(a,b))
1934 #endif
1935 
1936 #include "ex_cmds.h"	    /* Ex command defines */
1937 #include "proto.h"	    /* function prototypes */
1938 
1939 /* This has to go after the include of proto.h, as proto/gui.pro declares
1940  * functions of these names. The declarations would break if the defines had
1941  * been seen at that stage.  But it must be before globals.h, where error_ga
1942  * is declared. */
1943 #if !defined(FEAT_GUI_W32) && !defined(FEAT_GUI_X11) \
1944 	&& !defined(FEAT_GUI_GTK) && !defined(FEAT_GUI_MAC)
1945 # define mch_errmsg(str)	fprintf(stderr, "%s", (str))
1946 # define display_errors()	fflush(stderr)
1947 # define mch_msg(str)		printf("%s", (str))
1948 #else
1949 # define USE_MCH_ERRMSG
1950 #endif
1951 
1952 #ifndef FEAT_MBYTE
1953 # define after_pathsep(b, p)	vim_ispathsep(*((p) - 1))
1954 # define transchar_byte(c)	transchar(c)
1955 #endif
1956 
1957 #ifndef FEAT_LINEBREAK
1958 /* Without the 'numberwidth' option line numbers are always 7 chars. */
1959 # define number_width(x) 7
1960 #endif
1961 
1962 
1963 #include "globals.h"	    /* global variables and messages */
1964 
1965 #ifdef FEAT_SNIFF
1966 # include "if_sniff.h"
1967 #endif
1968 
1969 #ifndef FEAT_VIRTUALEDIT
1970 # define getvvcol(w, p, s, c, e) getvcol(w, p, s, c, e)
1971 # define virtual_active() 0
1972 # define virtual_op FALSE
1973 #endif
1974 
1975 /*
1976  * If console dialog not supported, but GUI dialog is, use the GUI one.
1977  */
1978 #if defined(FEAT_GUI_DIALOG) && !defined(FEAT_CON_DIALOG)
1979 # define do_dialog gui_mch_dialog
1980 #endif
1981 
1982 /*
1983  * Default filters for gui_mch_browse().
1984  * The filters are almost system independent.  Except for the difference
1985  * between "*" and "*.*" for MSDOS-like systems.
1986  * NOTE: Motif only uses the very first pattern.  Therefore
1987  * BROWSE_FILTER_DEFAULT should start with a "*" pattern.
1988  */
1989 #ifdef FEAT_BROWSE
1990 # ifdef BACKSLASH_IN_FILENAME
1991 #  define BROWSE_FILTER_MACROS \
1992 	(char_u *)"Vim macro files (*.vim)\t*.vim\nAll Files (*.*)\t*.*\n"
1993 #  define BROWSE_FILTER_ALL_FILES (char_u *)"All Files (*.*)\t*.*\n"
1994 #  define BROWSE_FILTER_DEFAULT \
1995 	(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"
1996 # else
1997 #  define BROWSE_FILTER_MACROS \
1998 	(char_u *)"Vim macro files (*.vim)\t*.vim\nAll Files (*)\t*\n"
1999 #  define BROWSE_FILTER_ALL_FILES (char_u *)"All Files (*)\t*\n"
2000 #  define BROWSE_FILTER_DEFAULT \
2001 	(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"
2002 # endif
2003 # define BROWSE_SAVE 1	    /* flag for do_browse() */
2004 # define BROWSE_DIR 2	    /* flag for do_browse() */
2005 #endif
2006 
2007 /* stop using fastcall for Borland */
2008 #if defined(__BORLANDC__) && defined(WIN32) && !defined(DEBUG)
2009  #pragma option -p.
2010 #endif
2011 
2012 #ifdef _MSC_VER
2013 /* Avoid useless warning "conversion from X to Y of greater size". */
2014  #pragma warning(disable : 4312)
2015 #endif
2016 
2017 #if defined(MEM_PROFILE)
2018 # define vim_realloc(ptr, size)  mem_realloc((ptr), (size))
2019 #else
2020 # define vim_realloc(ptr, size)  realloc((ptr), (size))
2021 #endif
2022 
2023 /*
2024  * The following macros stop display/event loop nesting at the wrong time.
2025  */
2026 #ifdef ALT_X_INPUT
2027 # define ALT_INPUT_LOCK_OFF	suppress_alternate_input = FALSE
2028 # define ALT_INPUT_LOCK_ON	suppress_alternate_input = TRUE
2029 #endif
2030 
2031 #ifdef FEAT_MBYTE
2032 /*
2033  * Return byte length of character that starts with byte "b".
2034  * Returns 1 for a single-byte character.
2035  * MB_BYTE2LEN_CHECK() can be used to count a special key as one byte.
2036  * Don't call MB_BYTE2LEN(b) with b < 0 or b > 255!
2037  */
2038 # define MB_BYTE2LEN(b)		mb_bytelen_tab[b]
2039 # define MB_BYTE2LEN_CHECK(b)	(((b) < 0 || (b) > 255) ? 1 : mb_bytelen_tab[b])
2040 #endif
2041 
2042 #if defined(FEAT_MBYTE) || defined(FEAT_POSTSCRIPT)
2043 /* properties used in enc_canon_table[] (first three mutually exclusive) */
2044 # define ENC_8BIT	0x01
2045 # define ENC_DBCS	0x02
2046 # define ENC_UNICODE	0x04
2047 
2048 # define ENC_ENDIAN_B	0x10	    /* Unicode: Big endian */
2049 # define ENC_ENDIAN_L	0x20	    /* Unicode: Little endian */
2050 
2051 # define ENC_2BYTE	0x40	    /* Unicode: UCS-2 */
2052 # define ENC_4BYTE	0x80	    /* Unicode: UCS-4 */
2053 # define ENC_2WORD	0x100	    /* Unicode: UTF-16 */
2054 
2055 # define ENC_LATIN1	0x200	    /* Latin1 */
2056 # define ENC_LATIN9	0x400	    /* Latin9 */
2057 # define ENC_MACROMAN	0x800	    /* Mac Roman (not Macro Man! :-) */
2058 #endif
2059 
2060 #ifdef FEAT_MBYTE
2061 # ifdef USE_ICONV
2062 #  ifndef EILSEQ
2063 #   define EILSEQ 123
2064 #  endif
2065 #  ifdef DYNAMIC_ICONV
2066 /* On Win32 iconv.dll is dynamically loaded. */
2067 #   define ICONV_ERRNO (*iconv_errno())
2068 #   define ICONV_E2BIG  7
2069 #   define ICONV_EINVAL 22
2070 #   define ICONV_EILSEQ 42
2071 #  else
2072 #   define ICONV_ERRNO errno
2073 #   define ICONV_E2BIG  E2BIG
2074 #   define ICONV_EINVAL EINVAL
2075 #   define ICONV_EILSEQ EILSEQ
2076 #  endif
2077 # endif
2078 
2079 #endif
2080 
2081 /* ISSYMLINK(mode) tests if a file is a symbolic link. */
2082 #if (defined(S_IFMT) && defined(S_IFLNK)) || defined(S_ISLNK)
2083 # define HAVE_ISSYMLINK
2084 # if defined(S_IFMT) && defined(S_IFLNK)
2085 #  define ISSYMLINK(mode) (((mode) & S_IFMT) == S_IFLNK)
2086 # else
2087 #  define ISSYMLINK(mode) S_ISLNK(mode)
2088 # endif
2089 #endif
2090 
2091 #define SIGN_BYTE 1	    /* byte value used where sign is displayed;
2092 			       attribute value is sign type */
2093 
2094 #ifdef FEAT_NETBEANS_INTG
2095 # define MULTISIGN_BYTE 2   /* byte value used where sign is displayed if
2096 			       multiple signs exist on the line */
2097 #endif
2098 
2099 #if defined(FEAT_GUI) && defined(FEAT_XCLIPBOARD)
2100 # ifdef FEAT_GUI_GTK
2101    /* Avoid using a global variable for the X display.  It's ugly
2102     * and is likely to cause trouble in multihead environments. */
2103 #  define X_DISPLAY	((gui.in_use) ? gui_mch_get_display() : xterm_dpy)
2104 # else
2105 #  define X_DISPLAY	(gui.in_use ? gui.dpy : xterm_dpy)
2106 # endif
2107 #else
2108 # ifdef FEAT_GUI
2109 #  ifdef FEAT_GUI_GTK
2110 #   define X_DISPLAY	((gui.in_use) ? gui_mch_get_display() : (Display *)NULL)
2111 #  else
2112 #   define X_DISPLAY	gui.dpy
2113 #  endif
2114 # else
2115 #  define X_DISPLAY	xterm_dpy
2116 # endif
2117 #endif
2118 
2119 #ifndef FEAT_NETBEANS_INTG
2120 # undef NBDEBUG
2121 #endif
2122 #ifdef NBDEBUG /* Netbeans debugging. */
2123 # include "nbdebug.h"
2124 #else
2125 # define nbdebug(a)
2126 #endif
2127 
2128 #ifdef IN_PERL_FILE
2129   /*
2130    * Avoid clashes between Perl and Vim namespace.
2131    */
2132 # undef NORMAL
2133 # undef STRLEN
2134 # undef FF
2135 # undef OP_DELETE
2136 # undef OP_JOIN
2137 # ifdef __BORLANDC__
2138 #  define NOPROTO 1
2139 # endif
2140   /* remove MAX and MIN, included by glib.h, redefined by sys/param.h */
2141 # ifdef MAX
2142 #  undef MAX
2143 # endif
2144 # ifdef MIN
2145 #  undef MIN
2146 # endif
2147   /* We use _() for gettext(), Perl uses it for function prototypes... */
2148 # ifdef _
2149 #  undef _
2150 # endif
2151 # ifdef DEBUG
2152 #  undef DEBUG
2153 # endif
2154 # ifdef _DEBUG
2155 #  undef _DEBUG
2156 # endif
2157 # ifdef instr
2158 #  undef instr
2159 # endif
2160   /* bool may cause trouble on MACOS but is required on a few other systems
2161    * and for Perl */
2162 # if defined(bool) && defined(MACOS) && !defined(FEAT_PERL)
2163 #  undef bool
2164 # endif
2165 
2166 # ifdef __BORLANDC__
2167   /* Borland has the structure stati64 but not _stati64 */
2168 #  define _stati64 stati64
2169 # endif
2170 
2171 # include <EXTERN.h>
2172 # include <perl.h>
2173 # include <XSUB.h>
2174 #endif
2175 
2176 /* values for vim_handle_signal() that are not a signal */
2177 #define SIGNAL_BLOCK	-1
2178 #define SIGNAL_UNBLOCK  -2
2179 #if !defined(UNIX) && !defined(VMS) && !defined(OS2)
2180 # define vim_handle_signal(x) 0
2181 #endif
2182 
2183 /* flags for skip_vimgrep_pat() */
2184 #define VGR_GLOBAL	1
2185 #define VGR_NOJUMP	2
2186 
2187 /* behavior for bad character, "++bad=" argument */
2188 #define BAD_REPLACE	'?'	/* replace it with '?' (default) */
2189 #define BAD_KEEP	-1	/* leave it */
2190 #define BAD_DROP	-2	/* erase it */
2191 
2192 /* last argument for do_source() */
2193 #define DOSO_NONE	0
2194 #define DOSO_VIMRC	1	/* loading vimrc file */
2195 #define DOSO_GVIMRC	2	/* loading gvimrc file */
2196 
2197 /* flags for read_viminfo() and children */
2198 #define VIF_WANT_INFO		1	/* load non-mark info */
2199 #define VIF_WANT_MARKS		2	/* load file marks */
2200 #define VIF_FORCEIT		4	/* overwrite info already read */
2201 #define VIF_GET_OLDFILES	8	/* load v:oldfiles */
2202 
2203 /* flags for buf_freeall() */
2204 #define BFA_DEL		1	/* buffer is going to be deleted */
2205 #define BFA_WIPE	2	/* buffer is going to be wiped out */
2206 #define BFA_KEEP_UNDO	4	/* do not free undo information */
2207 
2208 /* direction for nv_mousescroll() and ins_mousescroll() */
2209 #define MSCR_DOWN	0	/* DOWN must be FALSE */
2210 #define MSCR_UP		1
2211 #define MSCR_LEFT	-1
2212 #define MSCR_RIGHT	-2
2213 
2214 #define KEYLEN_PART_KEY -1	/* keylen value for incomplete key-code */
2215 #define KEYLEN_PART_MAP -2	/* keylen value for incomplete mapping */
2216 #define KEYLEN_REMOVED  9999	/* keylen value for removed sequence */
2217 
2218 /* Return values from win32_fileinfo(). */
2219 #define FILEINFO_OK	     0
2220 #define FILEINFO_ENC_FAIL    1	/* enc_to_utf16() failed */
2221 #define FILEINFO_READ_FAIL   2	/* CreateFile() failed */
2222 #define FILEINFO_INFO_FAIL   3	/* GetFileInformationByHandle() failed */
2223 
2224 #endif /* VIM__H */
2225