comparison src/sysfile.h @ 2421:ab71ad6ff3dd

[xemacs-hg @ 2004-12-06 03:50:53 by ben] (none) README.packages: Document use of --package-prefix. Fix error in specifying standard package location. make-docfile.c: Use QXE_PATH_MAX. info.el: Correct doc string giving example package path. menubar-items.el: Move Prefix Rectangle command up one level. xemacs/packages.texi: Add long form of Lisp Reference Manual to links. Add links pointing to Lisp Reference Manual for more detailed package discussion. lispref/range-tables.texi: Document range-table changes. internals/internals.texi: Update history section. elhash.c, elhash.h, profile.c: Create inchash_eq() to allow direct incrementing of hash-table entry. Use in profile.c to try to reduce profiling overhead. Increase initial size of profile hash tables to reduce profiling overhead. buffer.c, device-msw.c, dialog-msw.c, dired-msw.c, editfns.c, event-msw.c, events.c, glyphs-msw.c, keymap.c, objects-msw.c, process-nt.c, syswindows.h, text.c, text.h, unexnt.c: Rename xetcs* -> qxetcs* for consistency with qxestr*. Rename ei*_c(_*) -> ei*_ascii(_*) since they work with ASCII-only strings not "C strings", whatever those are. This is the last place where "c" was incorrectly being used for "ascii". dialog-msw.c, dumper.c, event-msw.c, fileio.c, glyphs-gtk.c, glyphs-x.c, nt.c, process-nt.c, realpath.c, sysdep.c, sysfile.h, unexcw.c, unexnext.c, unexnt.c: Try to avoid differences in systems that do or do not include final null byte in PATH_MAX. Create PATH_MAX_INTERNAL and PATH_MAX_EXTERNAL and use them everywhere. Rewrite code in dumper.c to avoid use of PATH_MAX. When necessary in nt.c, use _MAX_PATH instead of MAX_PATH to be consistent with other places. text.c: Code to short-circuit when binary or Unicode was not working due to EOL wrapping. Fix this code to work when either no EOL autodetection or no CR's or LF's in the text. lisp.h, rangetab.c, rangetab.h, regex.c, search.c: Implement different types of ranges (open/closed start and end). Change default to be start-closed, end-open.
author ben
date Mon, 06 Dec 2004 03:52:23 +0000
parents ecf1ebac70d8
children 902d5bd9b75c
comparison
equal deleted inserted replaced
2420:ad56e5a6d09f 2421:ab71ad6ff3dd
1 /* 1 /*
2 Copyright (C) 1995 Free Software Foundation, Inc. 2 Copyright (C) 1995 Free Software Foundation, Inc.
3 Copyright (C) 2000, 2001, 2002 Ben Wing. 3 Copyright (C) 2000, 2001, 2002, 2004 Ben Wing.
4 4
5 This file is part of XEmacs. 5 This file is part of XEmacs.
6 6
7 XEmacs is free software; you can redistribute it and/or modify it 7 XEmacs is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the 8 under the terms of the GNU General Public License as published by the
265 #endif 265 #endif
266 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */ 266 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
267 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK) 267 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
268 #endif 268 #endif
269 269
270 /* Client .c files should simply use `PATH_MAX'. */ 270 /* Determining the maximum pathname length.
271 #ifndef PATH_MAX 271
272 # if defined (_MAX_PATH) 272 NOTE: IN GENERAL, YOU SHOULD NOT USE THIS.
273 If at all possible, avoid using fixed-length buffers of any sort.
274 You cannot guarantee on many systems that pathnames won't exceed
275 these limits for one reason or another.
276
277 Unfortunately, there is no universal agreement over whether these
278 values should include a final null-terminator or not. Even recent
279 versions of Linux (circa 2002) are switching from the not-including-
280 terminator kind to the including-terminator kind. So we assume that
281 the including-terminator kind will be even (usually is), and round
282 up as necessary. */
283
284 #define ROUND_UP_TO_EVEN_NUMBER(val) (((val + 1) >> 1) << 1)
285 #ifdef PATH_MAX
286 # define QXE_PATH_MAX ROUND_UP_TO_EVEN_NUMBER (PATH_MAX)
287 #elif defined (_MAX_PATH)
273 /* MS Win -- and preferable to _POSIX_PATH_MAX, which is also defined */ 288 /* MS Win -- and preferable to _POSIX_PATH_MAX, which is also defined */
274 # define PATH_MAX _MAX_PATH 289 # define QXE_PATH_MAX ROUND_UP_TO_EVEN_NUMBER (_MAX_PATH)
275 # elif defined (_POSIX_PATH_MAX) 290 #elif defined (_POSIX_PATH_MAX)
276 # define PATH_MAX _POSIX_PATH_MAX 291 # define QXE_PATH_MAX ROUND_UP_TO_EVEN_NUMBER (_POSIX_PATH_MAX)
277 # elif defined (MAXPATHLEN) 292 #elif defined (MAXPATHLEN)
278 # define PATH_MAX MAXPATHLEN 293 # define QXE_PATH_MAX ROUND_UP_TO_EVEN_NUMBER (MAXPATHLEN)
279 # else 294 #else
280 # define PATH_MAX 1024 295 # define QXE_PATH_MAX 1024
281 # endif 296 #endif
282 #endif 297
298 /* Client .c files should use PATH_MAX_INTERNAL or PATH_MAX_EXTERNAL
299 if they must use either one at all. */
300
301 /* Use for internally formatted text, which can potentially have up to
302 four bytes per character */
303 #define PATH_MAX_INTERNAL (QXE_PATH_MAX * MAX_ICHAR_LEN)
304 /* Use for externally formatted text. */
305 #define PATH_MAX_EXTERNAL (QXE_PATH_MAX * MAX_XETCHAR_SIZE)
283 306
284 /* The following definitions are needed under Windows, at least */ 307 /* The following definitions are needed under Windows, at least */
285 #ifndef X_OK 308 #ifndef X_OK
286 # define X_OK 1 309 # define X_OK 1
287 #endif 310 #endif