| blob | 291919dfe1bfc8acabc54720a85307a22fc45b53 |
1 2004-04-13 Paul Eggert <eggert@twinsun.com>
3 * NEWS, configure.ac (AC_INIT): Version 2.8.7.
4 * configure.ac (AM_GNU_GETTEXT_VERSION): Add.
5 (XGETTEXT): Restore from pre-2004-04-12 version. This fixes
6 a bug that lost many msgids in doc/diffutils.pot.
7 * bootstrap: New file.
8 * exgettext: Don't generate a temporary file, as this runs afoul
9 of "make distcheck" which operates with read-only directories.
10 * Makefile.am (EXTRA_DIST): Add bootstrap.
11 Remove config/config.rpath as it is deduced automatically these days.
13 2004-04-12 Paul Eggert <eggert@twinsun.com>
15 * NEWS, configure.ac (AC_INIT): Version 2.8.6.
17 * NEWS: Add news for 2.8.4, 2.8.6.
19 * README: Move copyright notice to end. Defer to "configure
20 --help" for special "configure" options. Suggest latest libiconv.
21 Update version numbers of Autoconf etc. to current.
23 * configure.ac: Quote various arguments better.
24 (AC_CONFIG_MACRO_DIR): Add call, specifying "m4".
25 (AC_CONFIG_HEADER): Replaces AM_CONFIG_HEADER.
26 (gl_USE_SYSTEM_EXTENSIONS): Replaces AC_GNU_SOURCE.
27 (AC_ISC_POSIX): Remove; nobody ports to ancient ISC any more.
28 (AC_PROG_CPP, AC_PROG_INSTALL, AC_C_INLINE,
29 AC_HEADER_STDBOOL, AC_HEADER_STDC, AM_GNU_GETTEXT, XGETTEXT,
30 AC_HEADER_STAT, AC_FUNC_VPRINTF, jm_FUNC_GLIBC_UNLOCKED_IO,
31 jm_FUNC_GNU_STRFTIME, jm_FUNC_MALLOC, jm_FUNC_REALLOC,
32 jm_PREREQ_C_STACK, jm_PREREQ_ERROR, jm_PREREQ_HARD_LOCALE,
33 jm_PREREQ_QUOTEARG, jm_PREREQ_REGEX, AC_FUNC_FNMATCH_GNU, jm_AC_DOS):
34 Remove; not needed here, as our files don't use them directly
35 or we rely on gnulib modules.
36 (AC_C_CONST): Remove; we assume C89 now.
37 (AC_CHECK_HEADERS): Remove libintl.h, limits.h, stdlib.h, string.h,
38 time.h.
39 (AC_CHECK_TYPE): Remove ptrdiff_t, ssize_t.
40 (AC_CHECK_FUNCS): Remove diraccess, strchr, strerror, tmpnam).
41 (AC_REPLACE_FUNCS): Remove memchr, mkstemp, strcasecmp.
42 (GNULIB_AUTOCONF_SNIPPET): Add call. This replaces much of
43 the above.
44 (AC_CONFIG_FILES): Remove lib/posix/Makefile.
45 (AC_CONFIG_COMMANDS): Remove.
47 * doc/diff.texi (dircategory): Change to "Text creation and
48 manipulation" from "GNU packages".
49 (Translations): New node.
50 (Overview): Improve quality of algorithm citations.
51 (Binary): -q doesn't exactly cause diff to assume files are binary.
52 (Normal): Place after Side by Side, since it's less important.
53 (Detailed Context, Detailed Unified, Detailed ed,
54 Detailed if-then-else, diff3 Hunks, Detailed diff3 Normal):
55 Place at end of menu.
56 (Detailed Unified): Mention that fractional timestamps are
57 omitted on hosts that don't support them.
58 Mention what happens when hunks contain just one line.
59 (Line Group Formats, Reject Names): Fix duplicate-word typos.
60 (Comparing Directories): Trailing white space and empty lines are
61 ignored in the -X file.
62 (diff Options): Add --strip-trailing-cr.
63 (Projects): gnu -> gvc@gnu.org.
65 * lib/Makefile.am (SUBDIRS): Remove.
66 (EXTRA_DIST, noinst_HEADERS): Remove most entries.
67 (libdiffutils_a_SOURCES): Now just lib_SOURCES.
68 (lib_SOURCES): New macro.
69 (DISTCLEANFILES, MOSTLYCLEANFILES): Set to empty now.
70 (gnulib.mk): Include: this does most of the work eliminated
71 by the above changes.
73 * lib/inttostr.c (inttostr): Protect i < 0 by compile-time
74 test intended to suppress compiler warnings.
75 * lib/inttostr.h: Include limits.h unilaterally.
76 (CHAR_BIT): Remove.
77 (PARAMS): Remove; all uses changed.
78 * lib/setmode.c (__attribute__): New macro.
79 (set_binary_mode): Define only if HAVE_SETMODE_DOS.
80 Otherwise define a dummy static char, as C89 requires
81 that we define something.
82 * lib/setmode.h (set_binary_mode): Return true, not 1.
84 * src/analyze.c, src/context.c, src/diff.c, src/io.c, src/util.c:
85 Do not include regex.h, as diff.h does this now.
87 * src/cmp.c: Sort includes. Include <exit.h>, <unlocked-io.h>.
88 (specify_comparison_type): Don't report an error if the comparison
89 type has already been specified the same way as this one.
91 * src/cmp.c (usage): Mention exit status.
92 * src/diff.c (option_help_msgid): Likewise.
93 * src/diff3.c (usage): Likewise.
94 * src/sdiff.c (usage): Likewise.
96 * src/cmp.c (main): Adjust to latest gnulib c_stack_action
97 calling conventions.
98 * src/diff.c (main): Likewise.
99 * src/diff3.c (main): Likewise.
100 * src/sdiff.c (main): Likewise.
102 * src/cmp.c (main): Adjust to latest version_etc calling conventions.
103 * src/diff.c (main): Likewise.
104 * src/diff3.c (main): Likewise.
105 * src/sdiff.c (main): Likewise.
107 * src/diff.c: Include <exit.h>.
108 (binary): Define to true if not declared.
109 (longopts): Set tabsize flag to 1.
110 (main): Don't output nanoseconds if platform lacks them.
111 Don't treat files as binary if !binary.
112 (set_mtime_to_now): Use 0, not NULL.
113 (compare_files): Mark files as nonexistent if it looks like
114 'patch' created inaccessible regular empty files to denote
115 nonexistent backups. Don't compare such files.
116 Clear st_* members of status of nonexistent file.
117 Remove now-unnecessary tests.
119 * src/diff.h: Include regex.h, unlocked-io.h.
120 (struct file_data.changed): Now char *, not bool *, to save
121 space on hosts where bool takes more space than char.
122 All uses changed.
124 * src/diff3.c: Include unlocked-io.h.
125 (strip_trailing_cr): New var.
126 (STRIP_TRAILING_CR_OPTION): New enum.
127 (longopts, main, option_help_msgid, read_diff):
128 Add --strip-trailing-cr support.
129 (read_diff): Exit with status 126 (not 127) if errno != ENOENT
130 after failed execvp in child. Report this in parent.
132 * src/dir.c: Include <strcase.h>.
133 (failed_locale_specific_sorting): Renamed from failed_strcoll.
134 All uses changed.
135 (compare_names): Don't invoke strcasecmp first thing when
136 ignore_file_name_case; if locale_specific_sorting, we should
137 just use that.
139 * src/ifdef.c (next_line): Remove; replace with...
140 (next_line0, next_line1): New vars.
141 (print_ifdef_script, print_ifdef_hunk):
142 Use them to fix line-number computation bug.
144 * src/io.c (find_and_hash_each_line): Don't convert char *
145 to unsigned char *; just leave pointers as char *. This
146 lessens the number of potentially-dangerous casts.
147 * src/util.c (lines_differ): Likewise.
149 * src/sdiff.c: Include <unlocked-io.h>, <exit.h>.
150 (check_child_status): Renamed from ck_editor_status, and
151 accept a new arg MAX_OK_STATUS. All callers changed.
152 Handle status 126/127 as per POSIX.
153 (edit): Likewise.
154 (main): Likewise. Fix getopt typo: -E wasn't supported.
156 * src/system.h (S_IRWXU, S_IRWXG, S_IRWXO): Define if not defined.
157 (S_IXUSR, S_IXGRP, S_IXOTH): Remove.
158 Include <time.h> unconditionally, since we can assume C89 now.
159 Likewise for <stdlib.h>, <string.h>.
160 (getenv, EXIT_SUCCESS, EXIT_FAILURE, SSIZE_MAX, strchr, strrchr,
161 memcmp, memcpy): Remove decl; no longer needed.
162 (strcasecoll, strcasecmp): Define if not built in.
163 (CTYPE_DOMAIN, ISPRINT, ISSPACE, TOLOWER, _tolower, errno): Remove;
164 we now assume C89 or better. All uses changed.
165 Include <stdbool.h> unconditionally now, since gnulib supports it
166 if the C compiler doesn't. All boolean uses of 0 and 1 now
167 changed to false and true.
168 (lin_is_printable_as_long_int): Renamed from lin_is_printable_as_long.
170 * src/util.c (begin_output): Fix bug: 0 wasn't cast to char * arg,
171 which led to undefined behavior on 64-bit hosts.
172 Use more-standard test for exit status 126 versus 127.
173 (finish_output): Likewise.
174 (analyze_hunk): Do not cast bool to int.
176 2004-03-15 Paul Eggert <eggert@twinsun.com>
178 * src/cmp.c (main): Don't consider two files with the same name to
179 be the same, if their initial skip values differ. This fixes a
180 bug reported by Hideki Iwamoto in
181 <http://mail.gnu.org/archive/html/bug-gnu-utils/2004-03/msg00024.html>.
183 2004-03-11 Paul Eggert <eggert@twinsun.com>
185 * src/analyze.c (diag): Return void, not lin, since the return
186 value wasn't needed. All callers changed.
187 (diag, diff_2_files):
188 Use 'true' and 'false' instead of '1' and '0', when appropriate.
189 (compareseq): Use lin const * local variables instead of lin *.
190 Don't bother checking diag's return value.
191 (shift_boundaries, build_reverse_script, build_script, diff_2_files):
192 Use char arrays, not bool arrays, since
193 sizeof (bool) might be greater than 1.
195 2004-02-09 Paul Eggert <eggert@twinsun.com>
197 * m4/setmode.m4 (AC_FUNC_SETMODE_DOS): AC_LIBOBJ(setmode) if
198 we would return true.
200 2002-10-14 Paul Eggert <eggert@twinsun.com>
202 * src/Makefile.am (diff3.$(OBJEXT), diff.$(OBJEXT),
203 sdiff.$(OBJEXT)): Rename from (misspelled) diff3.$(OBJECT),
204 diff.$(OBJECT), sdiff.$(OBJECT). Patch by Paul D. Smith in
205 <http://mail.gnu.org/pipermail/bug-gnu-utils/2002-October/003251.html>.
206 Bug reported by Chris Bainbridge.
208 2002-10-13 Paul Eggert <eggert@twinsun.com>
210 * src/Makefile.am (MOSTLYCLEANFILES): Add paths.ht.
211 (paths.h): Send output to paths.ht first, and then rename to
212 paths.h at the end. This avoids problems if the disk is full.
213 It also works around what appears to be a bug with GNU make -j
214 (3.79.1); see <http://bugs.gentoo.org/show_bug.cgi?id=8934>.
216 2002-06-27 Paul Eggert <eggert@twinsun.com>
218 * NEWS, configure.ac (AC_INIT): Version 2.8.4.
220 * config/config.sub: Sync with latest version maintained in other
221 packages.
223 * lib/file-type.h: Protect against double inclusion. Detect
224 whether <sys/stat.h> has been included. Fix from Jim Meyering.
226 * src/analyze.c (briefly_report): Don't say "Binary files differ",
227 since one of the files may not be a binary file.
228 Bug reported by Dan Jacobson.
230 2002-06-22 Paul Eggert <eggert@twinsun.com>
232 * lib/c-stack.c (segv_handler, c_stack_action) [! defined
233 SA_SIGINFO]: Do not assume SA_SIGINFO behavior.
234 Bug reported by Jim Meyering on NetBSD 1.5.2.
236 2002-06-16 Paul Eggert <eggert@twinsun.com>
238 * NEWS, configure.ac (AC_INIT): Version 2.8.3.
240 * config/depcomp, config/missing, README: Update to automake 1.6.2.
242 * po/LINGUAS: Add en_US.
243 * po/en_US.po: New file.
244 * po/POTFILES.in: Remove lib/freesoft.c.
245 Add lib/file-type.c, lib/version-etc.c, lib/xmalloc.c.
247 2002-06-15 Paul Eggert <eggert@twinsun.com>
249 * doc/diff.texi (Special Files): Document behavior of symlink
250 loops.
252 * lib/Makefile.am (noinst_HEADERS): Remove freesoft.h.
253 Add version-etc.h.
254 (libdiffutils_a_SOURCES): Remove freesoft.c. Add version-etc.c.
255 * lib/freesoft.c, lib/freesoft.h: Remove.
256 * lib/version-etc.h (PARAMS): Remove; we now assume C89 at least.
258 * lib/version-etc.h (version_etc): Remove package and version args.
259 (version_etc_copyright): Remove.
260 * lib/version-etc.c: Likewise.
261 Do not include unlocked-io.h; no longer needed.
262 Include gettext.h rather than libinto.h.
263 (_): Define unconditionally.
264 (version_etc): Adjust wording to match current GNU coding standards.
265 Translate "(C)" if possible.
267 * lib/version-etc.c, lib/version-etc.h: New files, taken from
268 fileutils.
270 * src/Makefile.am (cmp_SOURCES, diff3_SOURCES, sdiff_SOURCES,
271 diff_SOURCES): Remove version.c.
272 (MAINTAINERCLEANFILES, $(srcdir)/version.c): Remove.
274 * src/cmp.c: Include version-etc.h, not freesoft.h.
275 (copyright_notice): Remove.
276 (main): Use version_etc to print version.
277 * src/diff.c, src/diff3.c, src/sdiff.c: Likewise.
279 * src/cmp.c (version_string): Remove decl.
280 * src/diff.h, src/diff3.c, src/sdiff.c: Likewise.
282 2002-06-11 Paul Eggert <eggert@twinsun.com>
284 * lib/fnmatch.c, lib/fnmatch_loop.c (WIDE_CHAR_SUPPORT):
285 New macro. Use it uniformly instead of
286 (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H).
287 It also uses HAVE_BTOWC, to fix a porting bug on Solaris 2.5.1
288 reported by Vin Shelton.
289 * m4/fnmatch.m4 (_AC_LIBOBJ_FNMATCH): Check for btowc.
291 * NEWS, configure.ac (AC_INIT): Version 2.8.2.
293 * ABOUT-NLS, config/config.guess, config/config.sub,
294 config/depcomp, config/texinfo.tex, lib/posix/regex.h,
295 m4/c-bs-a.m4, m4/gettext.m4, m4/gnu-source.m4, m4/lib-link.m4,
296 m4/malloc.m4:
297 Update to recent version (maintained in other packages).
298 * m4/prereq.m4 (jm_PREREQ_EXCLUSIVE): AC_FUNC_FNMATCH_GNU
299 no longer takes a lib.
301 * README: Incorporate contents from INSTALLME.
302 * INSTALLME: Remove.
303 * Makefile.am (EXTRA_DIST): Remove INSTALLME.
305 * configure.ac (AC_GNU_SOURCE): Move up, so that it affects
306 later compilations properly.
307 (DEFAULT_DIFF_PROGRAM, AC_TYPE_SIGNAL): Remove.
308 (jm_AC_TYPE_INTMAX_T): Add.
309 (AC_FUNC_FNMATCH_GNU): Use this, instead of AC_FUNC_FNMATCH.
310 (AC_CONFIG_LINKS): regex.hin renamed from regex_.h.
312 * doc/diff.texi: Reword "@option{-f} and @option{--foo}" to
313 "@option{-f} or @option{--foo}".
314 Use @acronym instead of @sc where appropriate.
315 (Specified Lines): Renamed from Specified Folding.
316 (Comparison, Blank Lines):
317 Clarify wordings for Blank Lines and Specified Lines nodes.
318 (Binary): Mention --verbose and --print-bytes.
319 (Tabs, sdiff Option Summary, diff Options):
320 New option --tabsize=COLUMNS.
322 * lib/Makefile.am (EXTRA_DIST): Add fnmatch_loop.c.
323 (noinst_HEADERS): fnmatch_.h renamed from fnmatch.hin.
324 regex_.h renamed from regex.hin.
325 Add file-type.h.
326 (libdiffutils_a_SOURCES): Add file-type.c.
327 (DISTCLEANFILES): Remove fnmatch.hno, regex.hno.
329 * lib/c-stack.c (__attribute__): New macro.
330 (EOVERFLOW): Define if not defined.
331 (stack_t): Define to struct sigaltstack if not defined or declared.
332 Include <sys/resource.h>, <ucontext.h> if available.
333 Include <stdio.h> if DEBUG.
334 Do not include <inttypes.h> or <stdint.h>.
335 (c_stack_die): Remove info and context args. All uses changed.
336 (segv_action): Likewise.
337 (alternate_signal_stack): Change uintmax_t to long, to ease porting.
338 (get_stack_location, min_address_from_argv, max_address_from_argv,
339 null_action): New functions.
340 (stack_base, stack_size): New vars.
341 (segv_handler): context arg may not be used.
342 Use global stack_base, stack_size if
343 ! HAVE_XSI_STACK_OVERFLOW_HEURISTIC.
344 Add debug code.
345 Invoke die (rather than segv_action) to exit.
346 (c_stack_action): Accept new argv arg, and simpler handler arg.
347 All uses changed. Move code into new functions above.
348 Allow null action.
349 [! (defined SA_ONSTACK && defined _SC_PAGESIZE)]: Assume all segvs
350 are stack overflows.
351 (main) [DEBUG]: Describe what output should be like.
353 * lib/c-stack.h (siginfo_t, c_stack_die): Remove decl.
355 * lib/file-type.c, lib/file-type.h: New files. These contain code
356 that was in src/diff.c, but is now librarified and spiffed up a
357 bit. Jim Meyering suggested this.
359 * lib/fnmatch.c (alloca, __builtin_expect): Define for non-GCC hosts.
360 <strings.h>: Include only if HAVE_STRINGS_H.
361 <stddef.h>: Include if we include stdlib.h.
362 Do not comment out all code if ! HAVE_FNMATCH_GNU.
363 (getenv): Do not declare if HAVE_DECL_GETENV.
364 (__strchrnul, __wcschrnul): Remove; not used.
365 (MEMPCPY): Use mempcpy if not _LIBC; use memcpy if neither _LIBC
366 nor HAVE_MEMPCPY.
367 (FOLD) [HANDLE_MULTIBYTE]: Do not pass wide char to ISUPPER.
368 (STRLEN, STRCAT, MEMPCPY) [HANDLE_MULTIBYTE && !defined _LIBC]:
369 Use wcslen rather than __wcslen, and likewise for wcscat, wmempcpy.
370 (MEMPCPY) [HANDLE_MULTIBYTE]: Use wmempcpy if not _LIBC; use wmemcpy
371 if neither _LIBC nor HAVE_WMEMPCPY.
372 * lib/fnmatch_.h (__const): Do not define to empty, as this breaks
373 Sun cc. The code doesn't work with K&R anyway.
374 * lib/fnmatch_loop.c (struct patternlist.str): Size 1, not 0,
375 as C89 requires this.
376 (NEW_PATTERN): Use offsetof, not sizeof, since str now has size 1.
377 * lib/fnmatch_.h: Import from glibc fnmatch.h.
378 * lib/fnmatch.c, lib/fnmatch_loop.c: Import from glibc.
380 * lib/posixver.c: Include posixver.h.
382 * lib/regex_.h: Renamed from lib/regex.hin.
384 * m4/c-stack.m4 (jm_PREREQ_C_STACK): Do not AC_REQUIRE
385 jm_AC_TYPE_UINTMAX_T and do not use uintmax_t.
386 Check for sys/resource.h, uccontext.h.
387 Check for decls and existence of getcontext, sigaltstack.
388 Check for stack_t.
390 * m4/codeset.m4, m4/glibc21.m4, m4/lcmessage.m4: Remove.
392 * m4/fnmatch.m4: Update to latest Autoconf CVS for AC_FUNC_FNMATCH_GNU.
393 * m4/gnu-source.m4: Likewise, for AC_GNU_SOURCE (renamed from
394 AC__GNU_SOURCE).
396 * m4/mbstate_t.m4 (AC_TYPE_MBSTATE_T): Renamed from AC_MBSTATE_T.
397 All uses changed. Upgrade to recent Autoconf CVS.
399 * m4/stdbool.m4 (AC_HEADER_STDBOOL): Do not cast pointer to
400 bool in integer constant expression; C99 does not allow it.
401 Reported by Bruno Haible.
403 * po/LINGUAS: Add hu, pt_BR.
404 * po/hu.po, po/pt_BR.po: New files.
406 * src/Makefile.am (noinst_HEADERS): Remove diff.h.
407 (DEFS): Remove.
408 (diff_sources): Add diff.h.
409 (MOSTLYCLEANFILES): New macro.
410 (cmp.$(OBJEXT) diff3.$(OBJECT) diff.$(OBJECT) sdiff.$(OBJECT)): Depend
411 on paths.h.
412 (paths.h): New rule.
414 * src/analyze.c, src/cmp.c, src/diff.c, src/diff3.c, src/io.c,
415 src/sdiff.c: Include <file-type.h>.
417 * src/cmp.c: Include paths.h.
418 (copyright_notice): Renamed from copyright_string.
419 Now a msgid, so that copyright symbol can be translated.
420 All uses changed.
421 * src/diff.c, src/diff3.c, src/sdiff.c: Likewise.
423 * src/diff.c: Include posixver.h.
424 (TABSIZE_OPTION): New constant.
425 (main): Allow widths up to SIZE_MAX.
426 (filetype): Move to lib/file-type.c and rename to file_type.
427 All uses changed.
429 * src/diff.c (longopts, main, usage): New option --tabsize=COLUMNS.
430 * src/io.c (find_and_hash_each_line): Likewise.
432 * src/diff.h (TAB_WIDTH): Remove.
433 (tabsize): New decl.
434 (sdiff_half_width, sdiff_column2_offset): Now size_t rather than
435 unsigned int.
437 * src/diff3.c (skipwhite, readnum): New functions.
438 (process_diff_control): Use them.
439 (SKIPWHITE, READNUM): Remove.
440 (read_diff): Don't worry about errno == ENOEXEC.
442 * src/sdiff.c (catchsig, signal_handler, initial_action): Signal
443 handlers return void, not RETSIGTYPE, since we no longer support
444 K&R.
445 (TABSIZE_OPTION): New constant.
446 (longopts, usage, main): New option --tabsize=COLUMNS.
447 (cleanup): New arg signo. All uses changed.
448 (ck_editor_status, main, edit): Don't worry about ENOEXEC.
450 * src/side.c (tab_from_to, print_half_line, print_1sdiff_line):
451 New option --tabsize=COLUMNS.
453 * src/system.h (S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISREG,
454 S_ISSOCK): Remove; now in lib/file-type.h.
456 * src/util.c (finish_output): Check for ENOEXEC.
457 (lines_differ, output_1_line): New option --tabsize=COLUMNS.
458 (analyze_hunk): If -b or -w is also specified, -B now considers
459 lines to be empty if they contain only white space.
461 2002-04-05 Paul Eggert <eggert@sic.twinsun.com>
463 * NEWS, configure.ac (AC_INIT): Version 2.8.1.
465 * configure.ac (AC_HEADER_STDBOOL): Add.
466 (AC_CHECK_HEADERS): Remove stdbool.h.
467 * m4/stdbool.m4: New file.
468 * m4/prereq.m4 (jm_PREREQ_EXCLUDE):
469 Use AC_HEADER_STDBOOL rather than AC_CHECK_HEADERS(stdbool.h).
470 (jm_PREREQ_HASH): Likewise.
472 * src/system.h (SSIZE_MAX): Define if limits.h doesn't.
474 * src/analyze.c (diff_2_files): Assign PTRDIFF_MAX - 1 to a
475 size_t variable, just in case there's a problem with ptrdiff_t
476 versus size_t.
478 * lib/cmpbuf.c (errno): Remove decl; K&R C is no longer supported.
479 Include limits.h.
480 (SIZE_MAX, SSIZE_MAX): Define if standard headers don't.
481 (MIN): New macro.
482 (block_read): Do not attempt to read more than SSIZE_MAX bytes, as the
483 resulting behavior is implementation-defined. Work around bug in
484 Tru64 5.1, which can't read more than INT_MAX bytes at a time.
485 * src/cmp.c (cmp): Use block_read instead of read, to work
486 around Tru64 5.1 bug.
487 * src/diff3.c (read_diff): Likewise.
488 * src/diff3.c: Include cmpbuf.h.
490 * THANKS: Add Ulrich Drepper.
492 * INSTALLME: Mention GNU texinfo.
494 * doc/diff.texi:
495 Use new @copying directive.
496 Put @contents first, not last, since Texinfo now suggests this.
497 Fix bug in -w documentation noted by Karl Berry.
498 Mention links for speedup.
499 New node "Speedups" for future speedups.
500 Just say "Index", not "Concept Index".
502 2002-03-26 Paul Eggert <eggert@twinsun.com>
504 * src/Makefile.am:
505 (INCLUDES): Remove this obsolete macro, replacing it with:
506 (AM_CPPFLAGS): New macro.
508 2002-03-26 Albert Chin-A-Young <china@thewrittenword.com>
510 * src/Makefile.am (datadir): Remove, as it conflicts with --datadir.
512 2002-03-26 Paul Eggert <eggert@twinsun.com>
514 * doc/diff.texi (dircategory GNU packages): Fix typo: a "* " was
515 missing before the menu entry. Bug diagnosed by Adam Heath.
516 Also, put this dircategory after the Individual utilities dircategory,
517 to work around a compatibility problem with Debian install-info.
519 2002-03-24 Eli Zaretskii <eliz@is.elta.co.il>
521 * src/io.c (sip): Do not mishandle buffered count when reverting
522 to text mode.
524 2002-03-23 Paul Eggert <eggert@twinsun.com>
526 * NEWS, configure.ac (AC_INIT): Version 2.8.
527 * configure.ac (AC_PREREQ): 2.53.
528 * INSTALLME: Upgrade to gettext 0.11.1 and help2man 1.27.
530 * doc/diff.texi: Upgrade the description of `patch' to GNU patch
531 2.5.4, and revamp the documentation accordingly.
533 * src/diff.c (main): Fix typo that prevented diff -y from working.
534 Bug reported by Mitsuru Chinen.
536 2002-03-15 Paul Eggert <eggert@twinsun.com>
538 * lib/c-stack.c (c_stack_die) [!HAVE_SIGINFO_T]: Don't use info.
539 Bug reported by Eli Zaretskii.
541 2002-03-15 Eli Zaretskii <eliz@is.elta.co.il>
543 * ms/config.sed: Tweak editing of install-info-am target.
545 2002-03-12 Paul Eggert <eggert@twinsun.com>
547 * NEWS, configure.ac (AC_INIT): Version 2.7.10.
549 * NEWS: cmp -l -s and cmp -s -l are not allowed.
550 Deprecate diff -h, -H, -L, -P, --inhibit-hunk-merge.
552 * configure.ac (jm_PREREQ_HARD_LOCALE): Add.
553 (AM_INIT_AUTOMAKE): Do not distribute shar file.
555 * doc/diff.texi (Overview): byte != character.
556 (Detailed Context, Detailed Unified, Alternate Names, diff Options):
557 Do not document diff -L.
558 (Comparing Directories, Making Patches, diff Options):
559 Do not document diff -P.
560 (diff Performance, sdiff Option Summary, diff Options, sdiff Options):
561 Do not document diff -H.
562 (diff Performance, diff Options): Do not document --horizon-lines.
563 (cmp Options): Prefer -b to -c.
564 (cmp Options, diff Options, diff3 Options, patch Options,
565 sdiff Options): Put short options next to the similar long options.
566 Document --help, and use the same wording for --verbose.
567 (diff3 Options): Fix typo in description of -E, which used wrongly used
568 "-e" instead of "-E".
570 * lib/hard-locale.c (alloca): Remove.
571 Include stdlib.h if available, for malloc.
572 (hard_locale): Use malloc, not alloca, so that we need not worry about
573 alloca issues. Test for storage allocation failure.
575 * m4/prereq.m4 (jm_PREREQ): Add jm_PREREQ_HARD_LOCALE.
576 (jm_PREREQ_HARD_LOCALE): New macro.
578 * src/cmp.c (specify_comparison_type): New function.
579 (check_stdout): "indices and codes" -> "byte numbers and values"
580 (main): Detect clashing options.
581 (cmp): Use "byte" rather than "char" if a translation for "byte"
582 is available, even when in the POSIX locale.
584 * src/diff.c (option_help_msgid): Do not document -L, -P,
585 --horizon-lines, --inhibit-hunk-merge, -H.
586 * src/diff.h: -L -> --label
588 2002-03-11 Paul Eggert <eggert@twinsun.com>
590 * NEWS, configure.ac (AC_INIT): Version 2.7.9.
592 * INSTALLME: Update to autoconf 2.53, automake 1.6, help2man
593 1.25 with patch.
595 * configure.ac (AC_INIT):
596 Change package name from diff to diffutils.
597 (AM_INIT_AUTOMAKE): Use new form, with option gnits,
598 rather than old from that duplicated AC_INIT.
599 (AM_MISSING_PROG): Add help2man.
600 (REGEX_MALLOC): Define.
601 (AC_CONFIG_FILES): Add man/Makefile.
603 * Makefile.am (AUTOMAKE_OPTIONS): Remove.
604 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
605 * lib/Makefile.am (AUTOMAKE_OPTIONS): Likewise.
606 * ms/Makefile.am (AUTOMAKE_OPTIONS): Likewise.
607 * src/Makefile.am (AUTOMAKE_OPTIONS): Likewise.
609 * lib/c-stack.c: Include <errno.h>
610 (ENOTSUP): Define if errno.h doesn't.
611 (SA_NODEFER, SA_ONSTACK, SA_RESETHAND, SA_SIGINFO, SIGSTKSZ,
612 _SC_PAGESIZE, ALTERNATE_STACK_SIZE, stack_t, sigaltstack):
613 Remove; we now assume them all when
614 HAVE_XSI_STACK_OVERFLOW_HEURISTIC, so we don't need
615 substitutes.
616 (<ucontext.h>): Include only if HAVE_XSI_STACK_OVERFLOW_HEURISTIC.
617 (alternate_signal_stack): Now of size SIGSTKSZ.
618 (segv_handler): Simplify, under the assumption that
619 HAVE_XSI_STACK_OVERFLOW_HEURISTIC is nonzero.
620 (c_stack_action): Likewise.
621 (exit_failure) [DEBUG]: Initialize to 0, not 1.
622 (recurse, main) [DEBUG]: Remove main args.
624 * m4/c-stack.m4 (AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC): Change
625 wording of message. Do not check for stdbool.h or ucontext.h,
626 or for ucontext_t or sigaction or sigaltstack.
628 * po/LINGUAS: Add zh_TW.
630 * Makefile.am (SUBDIRS): Add man.
631 * man/Makefile.am: New file.
632 * src/cmp.c (usage): Reword for help2man.
633 * src/diff.c (option_help_msgid): Likewise.
634 * src/diff3.c (option_help_msgid, usage): Likewise.
635 * src/sdiff3.c (option_help_msgid, usage): Likewise.
636 Reword for help2man.
638 * THANKS: Add email address for Tower.
640 * config/config.guess, config/config.sub, config/depcomp,
641 config/install-sh, config/mdate-sh, config/missing,
642 config/mkinstalldirs, config/texinfo.tex: Update
643 to recent version (maintained in other packages).
645 2002-03-04 Bruno Haible <haible@ilog.fr>
647 * m4/gettext.m4 (AM_GNU_GETTEXT): Set LIBINTL and LTLIBINTL to empty if
648 no preinstalled GNU gettext was found.
650 2002-03-02 Eli Zaretskii <eliz@is.elta.co.il>
652 * ms/config.sed: Tweak editing of install-info-am and
653 uninstall-info-am targets, to include 8+3-butchered names of Info
654 files.
656 2002-02-28 Paul Eggert <eggert@twinsun.com>
658 * NEWS, configure.ac (AC_INIT, AM_INIT_AUTOMAKE): Version 2.7.8.
660 * doc/diff.texi: Add vr index.
661 Update copyright to 2002.
662 (Standards conformance): New chapter.
663 (Binary): Differing binary files are trouble unless the user asked for
664 brief output.
665 (Detailed Context): Prefer ISO time stamp format in discussion.
666 (Detailed Unified, Pagination): Likewise.
667 (Less Context): Likewise. Also use short option.
668 (Alternate Names): Separate option from arg.
669 (Making Patches): Mention -U 2.
670 (diff Options): Deprecate -LINES, as POSIX 1003.1-2001 does not
671 allow it.
673 * INSTALLME: Update advice for Solaris installation problems.
674 We no longer use a test version of gettext.
675 Autoconf test version updated from 2.52f to 2.52h.
676 POSIX 1003.1-2001 patch for Automake.
678 * configure.ac (AC__GNU_SOURCE): Add this,
679 replacing AH_VERBATIM of _GNU_SOURCE.
680 (tempname): Use AC_LIBOBJS, not LIBOBJS=, as now required by autoconf.
681 (jm_PREREQ_C_STACK): Add.
682 (AC_CONFIG_FILES): Remove intl/Makefile.
683 (AM_GNU_GETTEXT): Add external arg, from gettext 0.11.
685 * lib/c-stack.c, lib/c-stack.h, lib/exitfail.c, lib/exitfail.h,
686 lib/posixver.c, lib/posixver.h, m4/c-stack.m4, m4/gnu-source.m4,
687 po/cs.po, po/ja.po: New files.
689 * intl/ChangeLog, intl/Makefile.in, intl/VERSION,
690 intl/bindtextdom.c, intl/config.charset, intl/dcgettext.c,
691 intl/dcigettext.c, intl/dcngettext.c, intl/dgettext.c,
692 intl/dngettext.c, intl/explodename.c, intl/finddomain.c,
693 intl/gettext.c, intl/gettextP.h, intl/gmo.h, intl/hash-string.h,
694 intl/intl-compat.c, intl/l10nflist.c, intl/libgnuintl.h,
695 intl/loadinfo.h, intl/loadmsgcat.c, intl/localcharset.c,
696 intl/locale.alias, intl/localealias.c, intl/localename.c,
697 intl/ngettext.c, intl/os2compat.c, intl/os2compat.h, intl/osdep.c,
698 intl/plural-eval.c, intl/plural-exp.c, intl/plural-exp.h,
699 intl/plural.c, intl/plural.y, intl/ref-add.sin, intl/ref-del.sin,
700 intl/textdomain.c, m4/isc-posix.m4, m4/libtool.m4: Remove.
702 * ABOUT-NLS: Update to Gettext 0.11.
704 * Makefile.am (SUBDIRS): Remove intl.
706 * config/config.guess, config/config.rpath, config/config.sub,
707 config/texinfo.tex, config/depcomp, config/texinfo.tex,
708 lib/tempname.c: Update to latest version from other packages.
710 * lib/xalloc.h (xalloc_exit_failure): Remove; subsumed by exit_failure.
711 * lib/xmalloc.c: Include exitfail.h.
712 (xalloc_exit_failure): Remove; subsumed by exit_failure.
713 All uses changed.
715 * lib/Makefile.am (noinst_HEADERS): Add c-stack.h, exitfail.h.
716 (libdiffutils_a_SOURCES): Add c-stack.c, exitfail.c, quotesys.c.
717 (INCLUDES): Remove.
719 * lib/cmpbuf.h (buffer_lcm): New arg LCM_MAX.
720 * lib/cmpbuf.c: Include errno.h.
721 (errno): Declare if !STDC_HEADERS.
722 Include signal.h.
723 (SA_RESTART): Define if not already defined.
724 Include <inttypes.h>.
725 (PTRDIFF_MAX): Define if not already defined.
726 (TYPE_SIGNED, TYPE_MINIMUM, TYPE_MAXIMUM): Likewise.
727 (block_read): Accommodate ancient AIX hosts that set errno to EINTR
728 after uncaught SIGCONT.
729 (buffer_lcm): Return a reasonable size if the multiple is too large.
730 New arg LCM_MAX. All callers changed.
732 * lib/hard-locale.c: Include "hard-locale.h".
733 (hard_locale): Ignore ENABLE_NLS, since we want to operate on
734 locales other than LC_MESSAGES.
736 * m4/prereq.m4 (jm_PREREQ): Add jm_PREREQ_POSIXVER.
737 (jm_PREREQ_POSIXVER): New macro.
739 * m4/setmode.m4 (AC_FUNC_SETMODE_DOS):
740 Check for fcntl.h and unistd.h unconditionally.
741 Suggested by Bruno Haible.
743 * po/LINGUAS: Add cs, ja.
744 * po/POTFILES.in: Add lib/c-stack.c, src/dir.c.
746 * src/Makefile.am (datadir): @DATADIRNAME@ -> share.
747 (INCLUDES): Remove intl.
748 (LDADD): Change INTLLIBS to LIBINTL.
749 No longer need to link libdiffutils.a twice.
751 * src/analyze.c (diff_2_files):
752 Avoid arithmetic overflow in buffer size calculation.
754 * src/cmp.c: Include c-stack.h, exitfail.h.
755 (hard_locale_LC_MESSAGES): Depend on ENABLE_NLS.
756 (try_help, check_stdout, main, cmp): 2 -> EXIT_TROUBLE.
757 (main): Check for stack overflow.
758 0 -> EXIT_SUCCESS.
759 1 -> EXIT_FAILURE.
760 (cmp): Likewise.
761 Accommodate ancient AIX hosts that set errno to
762 EINTR after uncaught SIGCONT.
764 * src/context.c (pr_context_hunk):
765 Do not dump core if an enormous context causes an
766 arithmetic overflow.
767 (pr_unidiff_hunk): Likewise.
768 (find_hunk): Likewise.
770 * src/diff.h: unsigned -> unsigned int.
771 * src/diff.c: Include c-stack.h, exitfail.h.
772 Do not include signal.h.
773 (specify_style, specify_value): Bring these routines back, as POSIX
774 requires that the order of options not matter.
775 (shortopts): New constant.
776 (group_format_option, line_format_option): New constants.
777 (main): 0 -> EXIT_SUCCESS, 1 -> EXIT_FAILURE, 2 -> EXIT_TROUBLE.
778 Ensure that order of options does not matter.
779 Check for stack overflow.
780 If contexts overflow, substitute LIN_MAX, as that's good enough.
781 If multiple contexts are specified, use their maximum.
782 -c is equivalent to -C 3 now, instead of having an implicit context;
783 likewise for -u and -U 3.
784 Use specify_style and specify_value.
785 (SIGCHLD): Do not define; now done in a header.
786 Use new style time stamp format for -u / -U.
787 Reject numeric-string options if operating in POSIX 1003.1-2001 mode.
788 Avoid overflow problems with tab width.
789 Simplify from-file and to-file code.
790 (usage): Do not mention obsolete options.
791 (filetype): Do not mention whether a file is executable.
792 Add typed memory objects.
793 (compare_files): 0 -> EXIT_SUCCESS, 1 -> EXIT_FAILURE, 2 ->
794 EXIT_TROUBLE.
796 * src/diff3.c: Include c-stack.h, exitfail.h.
797 (ALLOCATE): Remove. All uses changed to xmalloc, or to xmalloc plus
798 an overflow check.
799 (myread): Remove.
800 (main): Check for stack overflow.
801 0 -> EXIT_SUCCESS, 1 -> EXIT_FAIULRE, 2 -> EXIT_TROUBLE.
802 (try_help): Likewise.
803 (process_diff): Check for integer overflow, to avoid core dumps.
804 2 -> EXIT_TROUBLE.
805 (read_diff): Exit with status 126 if the file is not executable,
806 for compatibility with POSIX 1003.1-2001.
807 Accommodate ancient AIX hosts that set errno to EINTR after uncaught
808 SIGCONT.
809 Check for integer overflow to avoid core dumps.
810 (fatal, perror_with_exit): 2 -> EXIT_TROUBLE.
812 * src/dir.c (dir_read):
813 Ignore st_size of directories: POSIX says it's garbage.
814 Check for integer overflow to avoid core dumps.
815 (diff_dirs): 0 -> EXIT_SUCCESS, 2 -> EXIT_TROUBLE.
817 * src/ifdef.c: Include <xalloc.h>.
818 (format_group, print_ifdef_lines): Avoid core dumps with bad formats.
819 (do_printf_spec): Avoid alloca.
821 * src/io.c (sip):
822 Avoid integer overflow and core dumps if buffer alignments are
823 preposterously incompatible.
824 (slurp): Do not dump core if the file is growing as we read it.
825 If a regular file grows, keep reading until we catch up with its EOF.
826 (find_and_hash_each_line): Check for integer overflow to avoid cores.
827 (GUESS_LINES): Remove.
828 (guess_lines): New function. Avoid integer overflow.
829 (find_identical_ends): Use it.
830 Avoid integer overflow and possible core dumps.
832 * src/sdiff.c: Include c-stack.h, exitfail.h. Do not include signal.h.
833 0 -> EXIT_SUCCESS, 1 -> EXIT_FAILURE, 2 -> EXIT_TROUBLE.
834 (ck_editor_status): New function.
835 (main): Check for stack overflow.
836 Adopt POSIX convention for subsidiary programs not found.
837 (diffarg): Check for integer overflow to avoid core dumps.
838 (trapsigs): Remove SA_INTERRUPT special case; now done by header.
839 (SIGCHLD): Likewise.
840 (edit): Adopt POSIX convention for subsidiary programs not found.
842 * src/side.c: unsigned -> unsigned int.
844 * src/system.h: Don't use alloca or include <alloca.h>.
845 unsigned -> unsigned int
846 (EXIT_SUCCESS, EXIT_FAILURE, EXIT_TROUBLE): Define if not defined.
847 Include signal.h.
848 (SA_RESTART): Define if not defined.
849 (SIGCHLD): Likewise.
851 * src/util.c: 2 -> EXIT_TROUBLE.
852 Adopt POSIX convention for ENOEXEC and exit status 126.
853 unsigned -> unsigned int
855 2002-01-24 Paul Eggert <eggert@twinsun.com>
857 * NEWS, configure.ac (AC_INIT, AM_INIT_AUTOMAKE): Version 2.7.7.
859 * intl/plural.c: Regenerate with Bison 1.31.
861 * ABOUT-NLS, intl/*: Update to Gettext 0.11-pre5++.
862 * INSTALL: Update to Autoconf 2.52f.
864 * INSTALLME: New file.
865 * Makefile.am (EXTRA_DIST): Add config/config.rpath, INSTALLME.
866 (DISTCLEANFILES): Remove.
867 * NEWS: Reformat for imminent 2.8 release.
868 * README: Mention INSTALLME.
869 * README-alpha: Move most of contents to INSTALLME.
870 * THANKS: Add Bruno Haible, Jim Meyering, and Eli Zaretskii.
872 * config: New subdirectory, containing the following files from .:
873 config.guess, config.sub, depcomp, missing, install-sh, mkinstalldirs.
874 Move the following files here from doc: texinfo.tex, mdate-sh.
875 * config/config.guess, config/config.sub, config/texinfo.tex:
876 Update to latest version from FSF.
877 * config/config.rpath: New file, from Gettext 0.11-pre5++.
879 * configure.ac (AC_INIT): Use new 3-arg form.
880 (AC_CONFIG_SRCDIR): Specify src/diff.c here, not in AC_INIT.
881 (ALL_LINGUAS): Remove: now in po/LINGUAS as per Gettext 0.11.
882 (AC_CONFIG_AUX_DIR): New macro invocation.
884 * lib/Makefile.am (noinst_HEADERS): Add gettext.h.
885 * lib/gettext.h: New file, from Gettext 0.11-pre5++.
886 * lib/prepargs.c: Include <string.h>. Reported by Bruno Haible.
888 * m4/codeset.m4, m4/gettext.m4, glibc21.m4, iconv.m4, isc-posix.m4,
889 lcmessage.m4, progtest.m4: Upgrade to Gettext 0.11-pre5++.
890 * m4/lib-ld.m4, m4/lib-link.m4, m4/lib-prefix.m4: New files, from
891 Gettext 0.11-pre5++.
893 * po/LINGUAS: New file.
894 * po/Makefile.in.in: Upgrade to Gettext 0.11-pre5++.
895 * po/Makevars, po/Rules-quot, po/boldquot.sed: New files,
896 from Gettext 0.11-pre5++.
898 * src/cmp.c (copyright_string): Update to 2002.
899 * src/diff.c (copyright_string): Likewise.
900 * src/diff3.c (copyright_string): Likewise.
901 * src/sdiff.c (copyright_string): Likewise.
903 * src/cmp.c (specify_ignore_initial): Renamed from
904 parse_ignore_initial, with different signature, to take the
905 maximum of multiple options rather than the last one.
906 All uses changed.
908 * src/cmp.c (bytes, specify_ignore_initial, cmp): Use UINTMAX_MAX
909 instead of (uintmax_t) -1, to avoid warnings on some compilers.
910 * src/io.c (file_block_read): Likewise, for SIZE_MAX.
912 * src/cmp.c (usage): Reformat messages to ease translation.
913 * src/diff3.c (usage): Likewise.
914 * src/sdiff.c (usage): Likewise.
916 * src/cmp.c (main): Two files with the same name are identical
917 only if the same offset is specified.
918 (block_compare_and_count): Avoid cast to unsigned char.
920 * src/diff3.c (main): Remove unused variable.
922 * src/dir.c: Include <setjmp.h>
923 (struct dirdata): New member nnames.
924 (locale_specific_sorting, failed_strcoll): New vars.
925 (dir_read): Renamed from dir_sort. Don't sort the dir.
926 Set new nnames member of struct dirdata. All callers changed.
927 (compare_names): Don't check for errno after strcasecmp.
928 Use strcoll only if locale_specific_sorting is nonzero.
929 If strcoll fails, longjmp out rather than returning a value
930 that might result in an invalid comparison function that might
931 make qsort dump core.
932 (diff_dirs): Sort the directory ourselves. Use setjmp to recover
933 from strcoll failure, falling back on native byte comparison.
934 Make local variables volatile if they need to preserve their value
935 after setjmp/longjmp.
937 * src/sdiff.c (handler_index_of_SIGINT, handler_index_of_SIGPIPE):
938 New macros.
939 (main): Do not confuse signal numbers with their indices.
940 Bug reported by Bruno Haible.
941 (edit): Cat lin to long before printing with %ld, since lin might
942 be narrow than long.
944 * src/system.h (UINTMAX_MAX): New macro.
945 Include gettext.h, not libgettext.h.
946 (N_): Do not wrap arg in parentheses. Fix from Bruno Haible.
948 * src/util.c (finish_output): Ensure that werrno is initialized.
949 (lines_differ): Have an explicit do-nothing case for
950 IGNORE_NO_WHITE_SPACE, to pacify gcc -Wall.
952 2001-12-29 Eli Zaretskii <eliz@is.elta.co.il>
954 * src/sdiff.c (interact): After extracting rlen from the editor
955 command, test for a terminating null character, not for a newline.
957 * ms/config.bat: Allow longer source directory names without
958 overflowing the line length limits. Create the cache in the
959 build directory, not in the source directory
960 * ms/config.sed: Fix AC_CONFIG_LINKS for when symlinks are
961 unavailable.
963 2001-12-23 Paul Eggert <eggert@twinsun.com>
965 * NEWS, configure.ac (AM_INIT_AUTOMAKE): Version 2.7.6.
967 * configure.ac (ALL_LINGUAS): Add tr.
969 * src/util.c (begin_output):
970 Have child exit with status 127 rather than reporting
971 failure on its own. Set errno to 0 before invoking popen.
972 (finish_output): Report errno on pclose failure.
973 Distinguish between subsidiary program not found, and failure.
975 * src/sdiff.c (not_found, execdiff): Remove.
976 (DIFF_PROGRAM_OPTION): New constant.
977 (longopts, option_help_msgid, main): Add --diff-program=PROGRAM.
978 (check_stdout): New function.
979 (main): Remove DIFF_PROGRAM. Check stdout after printing version.
980 Use check_stdout after printing help. Use execvp/perror_fatail rather
981 than execdiff. Set errno to 0 before invoking popen.
982 Check for pclose failure properly.
983 (main, edit): If child exec fails, exit with 127 rather than trying to
984 print diagnostic.
985 Distinguish between subsidiary program failing and not being found.
986 (edit): Handle signals the same way, regardless of whether we're using
987 system or fork+exec. Check for system returning -1.
989 * src/diff3.c (DIFF_PROGRAM_OPTION, HELP_OPTION): New constants.
990 (longopts, main): Use them.
991 (longopts, main, option_help_msgid): New option --diff-option=PROGRAM.
992 (main): Remove DIFF_PROGRAM support.
993 Check stdout after printing version.
994 (check_stdout): Report errno info if fclose fails.
995 (read_diff): Have child exit with status 127 when program is not found,
996 rather than trying to have the child report failure. Check for
997 pclose returning -1.
999 * src/diff.c (DEFAULT_WIDTH): Remove.
1000 (main): Use 130 instead of DEFAULT_WIDTH, since it's not really
1001 builder-settable. Do not prepend DIFF_OPTIONS.
1002 (check-stdout): If fclose (stdout) fails, print errno info.
1003 (option_help_msgid): Default context is 3, not 2.
1004 (usage): Work even if ptrdiff_t is wider than int.
1006 * doc/diff.texi (diff Options): Remove DIFF_OPTIONS.
1007 (Invoking diff3, Invoking sdiff): Remove DIFF_PROGRAM.
1008 (diff3 Options, sdiff Options): Add --diff-program.
1010 * src/cmp.c (valid_suffixes):
1011 Add '0', to support suffixes like "MB" and "MiB".
1012 (check_stdout): Don't assume that the translations of "write failed"
1013 and of "standard output" lack '%'.
1014 (main): Check stdout after printing version.
1016 * lib/setmode.c: [HAVE_FCNTL_H && HAVE_SETMODE_DOS]: Include <fcntl.h>.
1017 [!HAVE_SETMODE_DOS]: Do not include <unistd.h>.
1018 (set_binary_mode): Return mode (not 1) if fd is a tty.
1019 Do not assume that O_TEXT is zero.
1021 * doc/diff.texi (cmp Options):
1022 In byte counts, a plain suffix (without any integer)
1023 is assumed to modify the integer 1. Index terms like "kibibyte".
1024 Document plain "k".
1026 (Reporting Bugs): Mention bug-report archive and test version
1027 location. Ask for "diff --version" in bug reports.
1029 2001-12-13 Paul Eggert <eggert@twinsun.com>
1031 * src/diff.c (DEFAULT_WIDTH): Remove; couldn't be changed without
1032 also changing option_help_msgid. All uses replaced with 130.
1034 * lib/setmode.c: Include fcntl.h and unistd.h only if
1035 HAVE_SETMODE_DOS.
1036 (setmode): Assume a file is binary unless the mode is O_TEXT.
1037 * ms/README: Fix minor typos.
1039 2001-12-13 Eli Zaretskii <eliz@is.elta.co.il>
1041 * ms/README: New file.
1043 * lib/setmode.c (set_binary_mode) [HAVE_SETMODE_DOS]: Don't assume
1044 O_TEXT has a zero value. If FD is a terminal device, do nothing
1045 and return MODE, thus pretending that it was already in the
1046 requested MODE.
1047 [HAVE_FCNTL_H]: Include fcntl.h (needed for O_BINARY).
1049 * ms/config.sed: Remove the split prevention of config.status.
1050 Fix Sed commands for converting absolute file names into
1051 top_srcdir-relative ones.
1053 * ms/config.bat: Fix typos.
1055 2001-12-12 Neal H Walfield <neal@cs.uml.edu>
1057 * diff.c (option_help_msgid): Correct the default context width
1058 from 2 to 3.
1060 2001-12-11 Paul Eggert <eggert@twinsun.com>
1062 * m4/Makefile.am.in: Remove jm-glibc-io.m4
1064 * NEWS, configure.ac (AM_INIT_AUTOMAKE): Version 2.7.5.
1066 * configure.ac (PR_PROGRAM): Use AC_DEFINE_UNQUOTED, so that
1067 $PR_PROGRAM is expanded by sh.
1068 (ptrdiff_t, ssize_t): Use AC_CHECK_TYPE with a default of int,
1069 not AC_CHECK_TYPES.
1070 (jm_AC_DOS, AC_FUNC_SETMODE_DOS): New macros.
1071 (AC_CONFIG_FILES): Add ms/Makefile.
1073 * doc/diff.texi: Add --no-ignore-file-name-case.
1074 File name case sensitivity now affects file name exclusion.
1075 Fix typos.
1077 * src/util.c: Include dirname.h.
1078 (dir_file_pathname): Use base_name rather than file_name_lastdirchar.
1080 * src/system.h (S_IXUSR, S_IXGRP, S_IXOTH): New macros.
1081 Include <libgettext.h> rather than rolling it ourselves.
1082 (file_name_lastdirchar, HAVE_SETMODE, set_binary_mode): Remove.
1084 * src/sdiff.c: Include <dirname.h>.
1085 (expand_name): Use base_name rather than file_name_lastdirchar, for
1086 portability to DOS.
1087 (main): Initialize xalloc_exit_failure before possibly invoking
1088 any memory allocator.
1090 * src/io.c: Include setmode.h.
1092 * src/diff3.c (main):
1093 Initialize xalloc_exit_failure before possibly invoking any memory
1094 allocator.
1096 * src/diff.c: Include dirname.h, setmode.h.
1098 (main): Later values and/or styles now silently override earlier.
1099 (specify_value, specify_style): Likewise. All callers changed.
1100 Remove.
1101 (binary, main, option_help_msgid, compare_files):
1102 HAVE_SETMODE -> HAVE_SETMODE_DOS.
1103 (NO_IGNORE_FILE_NAME_CASE_OPTION): New constant.
1104 (longopts, main, option_help_msgid): Support it.
1105 (exclude_options): New function.
1106 (main): Use it. Initialize xalloc_exit_failure before potentially
1107 allocating memory.
1109 (filetype): Distinguish executable files from others, as POSIX
1110 suggests.
1112 (compare_files): Use base_name instead of file_name_lastdirchar.
1114 * src/cmp.c: Include <hard-locale.h>, <setmode.h>.
1115 (hard_locale_LC_MESSAGES): New macro.
1116 (sprintc): Remove int width arg; it's now the caller's responsibility
1117 to pad. All callers changed.
1118 (stat_buf): New static var; was formerly a local var in 'main'.
1119 (valid_suffixes): Add 'K', for 'KiB'.
1120 (option_help_msgid): Don't confuse bytes with characters.
1121 (main): Set xalloc_exit_failure before invoking anything that might
1122 allocate memory. Fix bug: -n was incorrectly ignored when optimizing
1123 the case of regular files with different lengths.
1124 (cmp): Use an index column wide enough to store this comparison's
1125 indexes. In locales other than the POSIX locale, say "byte"
1126 rather than "char".
1128 * ms/config.bat: pc -> ms
1130 * ms/Makefile.am, m4/setmode.m4, lib/setmode.c, lib/setmode.h:
1131 New file.
1133 * lib/Makefile.am (noinst_HEADERS): Add dirname.h, setmode.h.
1134 (libdiffutils_a_SOURCES): Add basename.c, setmode.c.
1136 * Makefile.am (SUBDIRS): Add ms.
1138 2001-12-10 Paul Eggert <eggert@twinsun.com>
1140 * m4/fnmatch.m4: Test for FNM_CASEFOLD.
1142 2001-12-03 Paul Eggert <eggert@twinsun.com>
1144 * lib/posix/regex.h: Fix copyright notice.
1146 2001-12-03 Paul Eggert <eggert@twinsun.com>
1148 * NEWS, configure.ac (AM_INIT_AUTOMAKE): Version 2.7.4.
1150 * diff.texi (direntry, Overview, Comparison, Binary, Invoking cmp):
1151 Use "byte" rather than "character" when talking about cmp, since
1152 it compares bytes, not character.
1153 (Invoking cmp): New trailing operands FROM-SKIP and TO-SKIP.
1154 -i or --ignore-initial now accepts FROM-SKIP:TO-SKIP.
1155 New option -n or --bytes.
1156 Count operands now may be in octal or hex, and may be followed by a
1157 size multiplier.
1159 * configure.ac (DEFAULT_DIFF_PROGRAM):
1160 Define to "diff", not "$bindir/diff" (which didn't work anyway).
1161 (AC_CHECK_MEMBERS): Add struct stat.st_blksize, struct stat.st_rdev.
1162 (AC_STRUCT_ST_BLKSIZE, AC_STRUCT_ST_RDEV): Remove; obsolescent.
1163 (AC_FUNC_FORK): Use this, instead of obsolescent AC_FUNC_VFORK.
1164 (AC_CONFIG_FILES, AC_CONFIG_COMMANDS): Add.
1165 (AC_OUTPUT): Remove args; they were obsolescent.
1167 * util.c (setup_output, begin_output, finish_output):
1168 HAVE_FORK -> HAVE_WORKING_FORK || HAVE_WORKING_VFORK.
1169 * sdiff.c (diffpid, cleanup, main, edit): Likewise.
1170 * diff3.c (read_diff): Likewise.
1172 * system.h (STAT_BLOCKSIZE):
1173 Use HAVE_STRUCT_STAT_ST_BLKSIZE, not HAVE_ST_BLKSIZE.
1174 (vfork): New macro.
1175 (HAVE_FORK): Remove.
1176 (set_binary_mode): New macro.
1178 * sdiff.c (main): HAVE_VFORK -> HAVE_WORKING_VFORK.
1179 (edit): Reopen the temporary file after the editor has run, in case
1180 the editor operates by unlinking the old file and linking a new one.
1181 (P_tmpdir): Rename from PVT_tmpdir; this fixes a typo.
1182 All uses changed.
1184 * io.c (sip, read_files):
1185 Remove tests for HAVE_SETMODE; use set_binary_mode
1186 instead of setmode.
1187 (sip): Fix typo in backward lseek when reverting to text mode.
1189 * config.site, config.sed, config.bat: New file.
1191 * Makefile.am (EXTRA_DIST): Add xstrtol.c.
1192 (noinst_HEADERS): Add xstrtol.h.
1193 (libdiffutils_a_SOURCES): Add xstrtoumax.c.
1195 * cmp.c: <xstrtol.h>: Include.
1196 (ignore_initial): Now an array with 2 elements. All uses changed.
1197 (bytes): New var.
1198 (HELP_OPTION): New constant.
1199 (long_options, main): Use it.
1200 (long_options, option_help_msgid, main, cmp):
1201 Add support for -n or --bytes.
1202 (parse_ignore_initial): New function.
1203 (option_help_msgid, main): Add -i M:N.
1204 (usage, main): Add two optional trailing operands, a la BSD.
1205 (main): setmode -> set_binary_mode.
1206 (cmp): Report byte number of what we've seen, not of the entire file.
1207 This is to be consistent with the line number, which is always relative
1208 with what we've seen.
1210 2001-12-02 Paul Eggert <eggert@twinsun.com>
1212 * diff.c (main, compare_files): setmode -> set_binary_mode.
1214 * xstrtol.c (__xstrtol): Don't accept 'Ki'; require 'KiB'.
1216 * xstrtol.c (__xstrtol): Add support for IEC 60027-2.
1218 2001-11-25 Paul Eggert <eggert@twinsun.com>
1220 * NEWS, configure.ac (AM_INIT_AUTOMAKE): Version 2.7.3.
1222 * README-alpha: New file.
1224 * src/Makefile.am (INCLUDES): Add -I../lib, for regex.h.
1226 * configure.ac:
1227 Don't set LIB_CLOCK_GETTIME to 'none required'; set it to
1228 the empty string instead.
1230 * lib/Makefile.am (EXTRA_DIST): Add strtoimax.c, strtol.c.
1232 * Makefile.am (SUBDIRS): Put intl before lib, so that libintl.h exists.
1234 * lib/Makefile.am (noinst_HEADERS): Add unlocked-io.h.
1236 * configure.ac (__EXTENSIONS__): New define, for the unlocked macros.
1238 * README: Add copyright notice.
1239 Remove stuff that doesn't apply any more.
1241 * doc/diff.texi: offsets -> indices for cmp
1243 * src/cmp.c (option_help_msgid): offsets -> indices
1245 * src/diff.c (option_help_msgid):
1246 Don't mention --binary on POSIX hosts.
1248 * src/sdiff.c (STRIP_TRAILING_CR_OPTION): New constant.
1249 (longopts, option_help_msgid, main): Add -E, --ignore-tab-expansion,
1250 --strip-trailing-cr.
1252 * doc/diff.texi: Change direcategory from Utilities to GNU Packages.
1253 Add individual utilities.
1254 Switch to Free Documentation License.
1255 @code -> @command
1256 @samp -> @option
1257 GNU -> @sc{gnu}
1258 Expand tabs to spaces, except when in an example that actually
1259 uses tabs.
1260 Prefer @node with just one arg.
1261 Document -E or --ignore-tab-expansion, --strip-trailing-cr,
1262 --ignore-file-name-case.
1263 Regular expressions are now grep style, not Emacs style.
1264 cmp's -c or --print-chars option is now -b or --print-bytes.
1265 Time stamps now depend on LC_TIME.
1266 -p now implies ^[[:alpha:]$_].
1267 Flags now include ' and 0.
1268 cmp -i is an alias for --ignore-initial
1269 Document --from-file, --to-file.
1270 Document DIFF_OPTIONS.
1272 * configure.ac (AC_CHECK_FUNCS): Add gettimeofday, clock_gettime.
1273 (LIB_CLOCK_GETTIME): New subst.
1275 * src/system.h: Assume C89 or better.
1276 (_GNU_SOURCE): Remove; config.h now defines it.
1277 (alloca): Declare like coreutils does it.
1278 (verify, TYPE_SIGNED, TYPE_MINIMUM, TYPE_MAXIMUM, O_RDWR,
1279 S_IRUSR, S_IWUSR): New macros.
1280 (STAT_BLOCKSIZE): Parenthesize definiens.
1281 <inttypes.h>: Include if HAVE_INTTYPES_H.
1282 (CHAR_MAX, INT_MAX): Remove.
1283 (PTRDIFF_MAX, SIZE_MAX): New macros.
1284 (strtoumax): New decl.
1285 Include stddef.h.
1286 (bzero): Remove.
1287 (bindtextdomain, textdomain, N_): New macros.
1288 (ISPRINT, ISSPACE): Remove ifndef wrappers.
1289 (ISUPPER, ISDIGIT): Remove.
1290 (TOLOWER): New macro.
1291 (MIN): Renamed from min; all callers changed.
1292 (MAX): Likewise, from max.
1293 (lin): New type.
1294 (LIN_MAX): New macro.
1295 (file_name_cmp): Renamed from filename_cmp. All callers changed.
1296 (file_name_lastdirchar): Renamed from file_name_lastdirchar.
1297 All callers changed.
1298 (could_be_mvfs_stat_bug, could_be_nfs_stat_bug,
1299 dev_may_have_duplicate_ino): Remove.
1300 (HAVE_SETMODE, NULL_DEVICE): New macros.
1301 (same_file): Do not check attributes.
1302 (same_file_attributes): New macro.
1304 * src/util.c: Assume C89 or better.
1305 int -> bool for booleans.
1306 int -> lin for line numbers.
1307 int -> size_t for sizes.
1308 Use angle-brackets when including quotesys.h.
1309 Include error.h, regex.h, xalloc.h.
1310 (message5): sizeof -> offsetof
1311 (begin_output): Invoke pr without -f.
1312 (lines_differ): Renamed from line_cmp, and return bool not 3-way int.
1313 All callers changed.
1314 Add support for IGNORE_TAB_EXPANSION.
1315 (change_letter): Now an array rather than a function. All
1316 callers changed.
1317 (translate_range): Translate line numbers to long, not lin,
1318 for convenience with printf.
1319 (analyze_hunk): Return enum changes instead of a count of
1320 inserts and deletes. All callers changed.
1321 (zalloc): New function.
1323 * src/side.c: Assume C89 or better.
1324 int -> bool for booleans.
1325 int -> lin for line numbers.
1327 * src/sdiff.c: Assume C89 or better.
1328 int -> bool for booleans.
1329 int -> lin for line numbers.
1330 Use angle-brackets when including getopt.h, quotesys.h.
1331 Include error.h, freesoft.h, stdio.h, xalloc.h.
1332 (copyright_string): Use only most recent year.
1333 (authorship_msgid, option_help_msgid): Wrap in N_().
1335 (tmpname): Now volatile.
1336 (tmpmade): Remove.
1337 (tmp): New var.
1338 (private_tempnam, exists, letters): Remove.
1339 (temporary_file): New function.
1340 (edit): Use it.
1341 (interact): Use strtoumax, not atoi.
1343 * src/normal.c: Assume C89 or better.
1344 int -> lin for line numbers.
1346 * src/io.c: Assume C89 or better.
1347 int -> bool for booleans.
1348 int -> lin for line numbers.
1349 int -> size_t for sizes.
1350 Use angle-brackets when including cmpbuf.h.
1351 Include regex.h, xalloc.h.
1352 (word): Remove; now done in system.h.
1353 (hash_value): New type; use it instead of 'unsigned' for hash values.
1354 (file_block_read): New function.
1355 (sip, slurp): Use it. Now static.
1356 (sip): Ensure block size is a multiple of word size. Clear eof flag.
1357 (slurp): Use xalloc_die to report memory exhaustion.
1358 (find_and_hash_each_line): Use TOLOWER instead of _tolower.
1359 Add support for IGNORE_TAB_EXPANSION.
1360 (prepare_text_end): Strip trailing CR if requested.
1361 (find_identical_ends): Prepare the text only once,
1362 if they're duplicates.
1363 Let the compiler take advantage more of the fact that the buffers are
1364 word-aligned.
1365 (primes): Remove.
1366 (prime_offset): New var.
1367 (read_var): Use prime_offset instead of primes.
1368 Use zalloc instead of xmalloc + bzero.
1370 * src/ifdef.c: Assume C89 or better.
1371 int -> lin for line numbers.
1372 (format_group): Use strtoumax to parse line numbers.
1373 (format_group, print_ifdef_lines): Use do_printf_spec to
1374 handle printf specs.
1375 (groups_letter_value): Don't use _tolower; it's locale-dependent.
1376 (do_printf_spec): Renamed from scan_printf_spec; now does the printing.
1378 * src/ed.c: Assume C89 or better.
1379 int -> lin for line numbers (or 'long' when that's more convenient).
1380 (print_ed_hunk): Fix bug when handling double-dot inserts.
1382 * src/dir.c: Assume C89 or better.
1383 int -> bool for booleans.
1384 Include error.h, exclude.h, xalloc.h.
1386 (dir_sort): Return 0 on error, 1 on success. All callers changed.
1387 compare_names -> compare_names_for_qsort.
1389 (compare_names): Try strcasecmp if ignore_file_name_case. Then try
1390 strcoll. Use file_name_cmp only as a last resort. Warn about
1391 strcasecmp or strcoll failure.
1392 (compare_names_for_qsort): New function.
1394 (diff_dirs): Use compare_names rather than filename_cmp.
1396 * src/diff3.c: Assume C89 or better.
1397 int -> bool for booleans.
1398 int -> lin for line numbers.
1399 Use angle-brackets when including getopt.h, quotesys.h.
1400 Include error.h, freesoft.h, inttostr.h, xalloc.h.
1401 (copyright_string): Use only most recent year.
1402 (authorship_msgid, option_help_msgid): Wrap in N_().
1404 Rename the following variables for consistency with user-visible
1405 option spellings. All uses changed.
1406 (text): Renamed from always_text.
1407 (initial_tab): Renamed from tab_align_flag.
1409 (horizon_lines): Remove. Remove all uses.
1411 (main): Invoke bindtextdomain and textdomain after setlocale.
1412 Rename "DIFF" to "DIFF_PROGRAM".
1414 Try to compare file0 to file1, because this is where changes are
1415 expected to come from. Diffing between these pairs of files is more
1416 likely to avoid phantom changes from file0 to file1.
1417 However, use file2 as the common file if this is a 3-way diff,
1418 for backward compatibility. Suggested by Karl Tomlinson.
1420 (create_diff3_block): Use xcalloc instead of malloc + bzero.
1422 (INT_STRLEN_BOUND): Remove; now in system.h.
1424 (read_diff): Always use --horizon-lines=100 rather than trying
1425 to guess it.
1426 Do not pass --inhibit-hunk-merge.
1427 Minimum chunk size is 1, not 8KiB.
1428 Use xalloc_die to report memory exhaustion.
1429 (undotlines): Use long for start, not int.
1431 * src/diff.h: Assume C89 or better.
1432 int -> bool for booleans.
1433 int -> lin for line numbers.
1434 Don't include regex.h.
1435 (enum changes): New enum.
1436 (enum line_class): Remove; subsumed by enum changes.
1437 (enum output_style): New constant OUTPUT_UNSPECIFIED.
1439 (ignore_space_change_flag, ignore_all_space_flag): Remove.
1440 (ignore_white_space): New decl, subsuming the above two. All
1441 uses changed.
1443 Rename the following decls for consistency with user-visible
1444 option spellings. All uses changed.
1445 (text): Renamed from always_text_flag.
1446 (ignore_blank_lines): Renamed from ignore_blank_lines_flag.
1447 (ignore_case): Renamed from ignore_case_flag.
1448 (brief): Renamed from no_details_flag.
1449 (initial_tab): Renamed from tab_align_flag.
1450 (expand_tabs): Renamed from tab_expand_flag.
1451 (starting_file): Renamed from dir_start_file.
1452 (paginate): Renamed from paginate_flag.
1453 (sdiff_merge_assist): Renamed from sdiff_help_sdiff.
1454 (left_column): Renamed from sdiff_left_only.
1455 (suppress_common_lines): Renamed from sdiff_skip_common_lines.
1456 (speed_large_files): Renamed from heuristic.
1457 (minimal): Renamed from no_discards.
1459 (inhibit_hunk_merge): Remove.
1461 (strip_trailing_cr, excluded, time_format): New decls.
1463 (files_can_be_treated_as_binary): Renamed from ignore_some_changes.
1465 (group_format, line_format): Now char const *[], not char *[].
1467 (struct file_data): Buffer is now word*, not char*, as it's always
1468 aligned and this can help the compiler. buffered_chars -> buffered
1469 (since it's a byte count, not a char count). All uses changed.
1470 New member `eof'.
1472 (FILE_BUFFER): New macro.
1474 (excluded_filename, error, free_software_msgid): Remove decls; now in
1475 other .h files.
1477 (sip, slurp): Remove decls.
1478 (file_block_read): New decl.
1479 (change_letter): Now an array, not a function.
1480 (lines_differ): Renamed from line_cmp.
1481 (analyze_hunk): Now returns enum changes rather than two change counts.
1483 * src/Makefile.am (diff_LDADD): New symbol.
1485 * src/diff.c: Assume C89 or better.
1486 int -> bool for booleans.
1487 long -> off_t for line numbers.
1488 Use angle-brackets when including getopt.h, fnmatch.h, quotesys.h.
1489 Include error.h, exclude.h, freesoft.h, hard-locale.h, prepargs.h,
1490 regex.h, signal.h, xalloc.h.
1491 (copyright_string): Use only most recent year.
1492 (authorship_msgid, option_help_msgid): Wrap in N_().
1494 Rename the following variables for consistency with user-visible
1495 option spellings. All uses changed.
1496 (binary): Renamed from binary_flag.
1497 (new_file): Renamed from entire_new_file_flag.
1498 (unidirectional_new_file): Renamed from unidirectional_new_file_flag.
1499 (report_identical_files): Renamed from print_file_same_flag.
1501 (numeric_arg): Remove.
1503 (exclude, exclude_alloc, exclude_count, excluded_filename, add_exclude,
1504 add_exclude_file):
1505 Remove; now done by exclude.h.
1507 (BINARY_OPTION, FROM_FILE_OPTION, HELP_OPTION, HORIZON_LINES_OPTION,
1508 IGNORE_FILE_NAME_CASE_OPTION, INHIBIT_HUNK_MERGE_OPTION,
1509 LEFT_COLUMN_OPTION, LINE_FORMAT_OPTION, NORMAL_OPTION,
1510 SDIFF_MERGE_ASSIST_OPTION, STRIP_TRAILING_CR_OPTION,
1511 SUPPRESS_COMMON_LINES_OPTION, TO_FILE_OPTION,
1512 UNCHANGED_LINE_FORMAT_OPTION, OLD_LINE_FORMAT_OPTION,
1513 NEW_LINE_FORMAT_OPTION, UNCHANGED_GROUP_FORMAT_OPTION,
1514 OLD_GROUP_FORMAT_OPTION, NEW_GROUP_FORMAT_OPTION,
1515 CHANGED_GROUP_FORMAT_OPTION): New constants.
1516 (longopts, main): Use them.
1518 (longopts, main, option_help_msgid): Add -E, --from-file, --to-file.
1520 (main): Invoke bindtextdomain and textdomain after setlocale.
1521 Use grep syntax, not Emacs, for regular expressions.
1522 Use exclude.h, not our own functions.
1523 Use ISO 8601 time format in hard locales.
1524 Prepend DIFF_OPTIONS.
1525 Don't update ignore_some_changes.
1526 Use strtoumax instead of numeric_arg.
1527 Use specify_value when appropriate.
1528 error -> try_help when appropriate.
1529 -p now means ^[[:alpha:]$_], not ^[_a-zA-Z$].
1530 Ignore --inhibit-hunk-merge.
1531 Prefer changed group formats to unchanged ones.
1532 Remove now-unnecessary casts.
1533 Set files_can_be_treated_as_binary.
1535 (specify_value): Renamed from specify_format. All uses changed.
1537 (specify_style): Default is now unspecified, not normal. All
1538 uses changed.
1540 (set_mtime_to_now): New function.
1541 (compare_files): Use it. Use memset, not bzero.
1542 Set stdin mtime to current time even when stdin is not a regular file.
1543 Check for same file attributes, as well as for same file.
1544 Use files_can_be_treated_as_binary.
1545 "write failed" -> "standard output on output failure.
1547 * src/context.c: Assume C89 or better.
1548 int -> lin for line numbers.
1549 Include inttostr.h, regex.h.
1550 (TIMESPEC_NS): New macro.
1551 (nstrftime): New decl.
1552 (print_context_label): Use nstrftime and time_format to format times.
1553 Print numeric time stamp value if localtime fails.
1554 (print_context_function): New function.
1555 (pr_context_hunk, pr_unidiff_hunk): Use it.
1556 (find_function): Use size_t for sizes, not int.
1558 * src/cmp.c: Assume C89 or better.
1559 int -> bool for booleans.
1560 long -> off_t for line numbers.
1561 Use angle-brackets when including cmpbuf.h, getopt.h.
1562 Include error.h, freesoft.h, inttostr.h, xalloc.h.
1563 (copyright_string): Use only most recent year.
1564 (authorship_msgid): Wrap in N_().
1565 (buffer): Now word*, not char*. All uses changed.
1566 (word): Remove macro; now in system.h.
1567 (long_options, option_help_msgid, main): -c --print-chars ->
1568 -b --print-bytes
1569 (check_stdout): "write failed" -> "standard output"
1570 (option_help_msgid): Wrap in N_().
1571 (main): Invoke bindtextdomain and textdomain after setlocale.
1572 Use strtoumax instead of doing the work ourselves.
1573 Check for same_file_attributes as well as same_file.
1574 (cmp): Use ssize_t for read returns, not size_t.
1575 Do not assume that size_t is not narrower than int.
1576 Do not assume that line numbers fit in 'long'.
1577 (block_compare_and_count, block_compare):
1578 Compiler now checks that buffers are word-aligned.
1579 (block_compare_and_count): Count sizes with size_t, not long.
1580 (sprintc): byte arg is unsigned char, not unsigned.
1582 * src/analyze.c: Assume C89 or better.
1583 int -> lin for line numbers.
1584 int -> bool for booleans.
1585 unsigned int -> size_t for sizes.
1586 Use angle-brackets when including cmpbuf.h.
1587 Include error.h, regex.h, xalloc.h.
1588 (discard_confusing_lines, diff_2_files): Use zalloc rather
1589 than xalloc+bzero.
1590 (discard_confusing_lines): unsigned int -> lin for values that
1591 are really line numbers.
1592 (shift_boundaries): Do not inhibit hunk merges.
1593 (build_reverse_script, build_script, diff_2_files): Use |, not ||.
1594 (diff_2_files): no_details_flag & ~ignore_some_changes ->
1595 files_can_be_treated_as_binary. Esure that buffer size is a multiple
1596 of sizeof (word). Use file_block_read to read buffers.
1597 (diff_2_files): Abort if output style is not one of the
1598 expected styles.
1600 2001-11-23 Paul Eggert <eggert@twinsun.com>
1602 * src/Makefile.am, m4/vararrays.m4: New file.
1604 * m4/prereq.m4 (jm_PREREQ_READUTMP):
1605 Remove, as it gives autoheader the willies.
1607 * m4/README, lib/prepargs.h, lib/prepargs.c, lib/offtostr.c,
1608 lib/umaxtostr.c, lib/inttostr.c, lib/inttostr.h,
1609 lib/imaxtostr.c, lib/freesoft.h: New files.
1611 * lib/freesoft.c: Include config.h, freesoft.h rather than diff.h.
1612 (free_software_msgid): Wrap contents in N_.
1614 * lib/cmpbuf.h: Use prototypes instead of old-style functions.
1616 * lib/cmpbuf.c:
1617 Don't include system.h; instead, include config.h, unistd.h.
1618 Use prototypes instead of old-style functions.
1619 (block_read): Don't assume that int is no wider than size_t.
1621 * lib/Makefile.am, po/POTFILES.in: New file.
1623 2001-11-22 Paul Eggert <eggert@twinsun.com>
1625 * pc/config.h:
1626 Define filename_cmp as an object-like macro, not as a function-like
1627 macro.
1629 * exgettext: Always operate in the C locale.
1630 Set AWK using a method that works even with broken shells.
1632 * doc/Makefile.am: New file.
1634 * configure.ac (AC_INIT):
1635 Use src/diff.c, not diff.h, as the source files got removed.
1636 (AM_CONFIG_HEADER): Switch from AC_CONFIG_HEADER.
1637 (AC_ARG_PROGRAM, AC_MINIX): Remove.
1639 (AC_PREREQ, AM_INIT_AUTOMAKE, ALL_LINGUAS, AC_PROG_AWK,
1640 AM_PROG_CC_STDC, AC_PROG_RANLIB, AC_C_INLINE, AC_C_VARARRAYS,
1641 DEFAULT_DIFF_PROGRAM, DEFAULT_EDITOR_PROGRAM,
1642 AC_STRUCT_ST_MTIM_NSEC): Add.
1644 (PR_PROGRAM): AC_DEFINE.
1646 (AC_SYS_LARGEFILE): Use instead of our homebrew version.
1648 (_GNU_SOURCE): Define if not defined.
1650 (AC_CHECK_HEADERS): Add stdbool.h, unistd.h.
1651 (AC_CHECK_TYPES): Add ptrdiff_t, uintmax_t.
1652 (AM_GNU_GETTEXT, XGETTEXT): Add.
1654 (WITH_MVFS_STAT_BUG, WITH_NFS_STAT_BUG): Remove.
1655 (HAVE_MEMCHR): Remove.
1656 (AC_CHECK_FUNCS): Add diraccess.
1657 (AC_REPLACE_FUNCS): Add memchr, waitpid.
1658 (jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_GNU_STRFTIME, jm_FUNC_MALLOC,
1659 jm_FUNC_REALLOC, jm_PREREQ_ERROR, jm_PREREQ_QUOTEARG, jm_PREREQ_REGEX,
1660 jm_PREREQ_TEMPNAME, jm_AC_PREREQ_XSTRTOUMAX, AC_FUNC_FNMATCH): Add.
1661 (fnmatch.h, regex.h): Do not create these files unless we're using
1662 our own fnmatch and regex.
1664 (AC_OUTPUT): Add doc/Makefile, intl/Makefile, lib/Makefile,
1665 lib/posix/Makefile, m4/Makefile, po/Makefile.in, src/Makefile.
1667 * Makefile.am: New file.
1669 * po/en_GB.po: Don't translate "program" to "programme".
1671 2001-11-20 Paul Eggert <eggert@twinsun.com>
1673 * m4/prereq.m4: New file.
1675 2001-03-16 Paul Eggert <eggert@twinsun.com>
1677 * lib/tempname.c (uint64_t):
1678 Define if not defined, and if UINT64_MAX is not defined.
1680 2001-02-26 Paul Eggert <eggert@twinsun.com>
1682 * lib/tempname.c: glibc 1.32
1684 2001-02-17 Paul Eggert <eggert@twinsun.com>
1686 * m4/Makefile.am.in: GNU fileutils 4.1
1688 2001-01-09 Paul Eggert <eggert@twinsun.com>
1690 * lib/tempname.c (struct_stat64): New macro.
1691 (direxists, __gen_tempname): Use it. This avoids a portability problem
1692 with Solaris 8.
1694 * lib/tempname.c (<config.h>): Include if HAVE_CONFIG_H.
1695 (<stddef.h>, <stdint.h>, <string.h>):
1696 Include only if STDC_HEADERS || _LIBC.
1697 (<fcntl.h>): Include only if HAVE_FCNTL_H || _LIBC.
1698 (<unistd.h>): Include only if HAVE_UNISTD_H || _LIBC.
1699 (<sys/time.h>): Include only if HAVE_SYS_TIME_H || _LIBC.
1700 (__set_errno): Define this macro if <errno.h> doesn't.
1701 (P_tmpdir, TMP_MAX, __GT_FILE, __GT_BIGFILE, __GT_DIR, __GT_NOCREATE):
1702 Define these macros if <stdio.h> doesn't.
1703 (S_ISDIR, S_IRUSR, S_IWUSR, S_IXUSR):
1704 Define these macros if <sys/stat.h>
1705 doesn't. Ignore <sys/stat.h> S_ISDIR if STAT_MACROS_BROKEN.
1706 (stat64, __getpid, __gettimeofday, __mkdir, __open, __open64, lxstat64,
1707 __xstat64): Define if not _LIBC.
1708 (__secure_getenv): Define if ! (HAVE___SECURE_GETENV || _LIBC).
1709 (__gen_tempname): Invoke gettimeofday only if HAVE_GETTIMEOFDAY
1710 || _LIBC; otherwise, fall back on plain "time".
1711 Use macros like S_IRUSR | S_IWUSR rather than octal values like 0600.
1713 * lib/mkstemp.c (__GT_FILE): Define to zero if not defined.
1715 2000-10-25 Paul Eggert <eggert@twinsun.com>
1717 * lib/hard-locale.c: New file.
1719 2000-02-05 Paul Eggert <eggert@twinsun.com>
1721 * exgettext: From GCC repository
1723 1999-07-06 Paul Eggert <eggert@twinsun.com>
1725 * lib/mkstemp.c: glibc 2.2
1727 1998-12-11 Paul Eggert <eggert@twinsun.com>
1729 * src/sdiff.c (lf_snarf):
1730 Fix bug when help line wrapped around the input buffer.
1732 1998-09-15 Paul Eggert <eggert@twinsun.com>
1734 * diff.texi: Add @dircategory and @direntry.
1736 1998-09-14 Paul Eggert <eggert@twinsun.com>
1738 * Makefile.in (VERSION): Version 2.7.2.
1739 (DEFAULT_DIFF_PROGRAM): Renamed from DIFF_PROGRAM.
1740 (PR_PROGRAM): All `configure' to define it.
1741 (srcs): Add $(diffutils_srcs), freesoft.c, quotearg.c instead of
1742 quote.c, quotearg.h.
1743 (distfiles): Add acconfig.h, message/*.
1744 (all): Depend on $(destfiles), not info.
1745 (version.c): Parenthesize `GNU diffutils'.
1746 (common_o): Add freesoft.o
1747 (diff_o): quote.o -> quotearg.o
1748 (diff3_o, sdiff_o): Likewise.
1749 (diff.dvi): Depend on version.texi.
1750 (diff.o diff3.o quotearg.o sdiff.o util.o):
1751 New dependency on quotearg.h
1752 (diff3.o): DIFF_PROGRAM -> DEFAULT_DIFF_PROGRAM.
1753 (sdiff.o): Likewise.
1754 (messages.po): Remove.
1755 (message/msgid.po, message/template.po): New rules.
1756 (maintainer-clean): Renamed from realclean.
1757 (install): Install from source directory, if applicable.
1758 Invoke install-info if needed.
1759 (install-strip): New rule.
1760 (check): Set DIFF.
1761 (stamp-h.in): Don't put the date into the timestamp.
1762 (D_dirs): Add $D/message.
1763 ($D.tar.gz): Compress with gzip -9.
1764 Don't use ln to create distribution; it doesn't work with symlinks.
1765 (srcs, distfiles, diff_o, diff3_o, sdiff_o): Rename quotearg.c to
1766 quotesys.c and quotearg.h to quotesys.h.
1768 * configure.in (AC_PATH_PROG): Add PR_PROGRAM.
1769 If available, prefer support for large files unless the user specified
1770 one of the CPPFLAGS, LDFLAGS, or LIBS variables.
1771 (AC_STRUCT_ST_RDEV): Add.
1772 (HAVE_ST_FSTYPE_STRING): Add.
1773 (--with-mvfs-stat-bug, --with-nfs-stat-bug): New options.
1774 (HAVE_MEMCHR): New macro.
1775 (AC_CHECK_FUNCS): Add sicprocmask.
1777 * diff.h (XTERN): Renamed from EXTERN.
1778 (struct filedata): Remove dir_p arg.
1779 (struct comparison): New type.
1780 (diff_2_files, diff_dirs)" Ise ot/
1781 (error): Add printf attribute if applicable.
1782 (free_software_msgid): New decl.
1783 (pr_program): New decl.
1784 (fatal): Add noreturn attribute.
1785 (pfatal_with_name): Likewise.
1787 * system.h (__attribute__): New macro.
1788 (getenv): Don't declare if HAVE_STDLIB_H.
1789 (CHAR_MAX): New macro.
1790 (<locale.h>): New include.
1791 (<locale.h>): Include before <libintl.h>.
1792 (could_be_mvfs_stat_bug, could_be_nfs_stat_bug,
1793 dev_may_have_duplicate_ino, same_special_file): New macros.
1794 (same_file): Use them.
1796 * cmp.c (authorship_msgid): New var.
1797 (free_software_msgid): New decl.
1798 (error): Now has printf attribute.
1799 (try_help): Likewise.
1800 (long_options): Don't assume ASCII.
1801 (try_help): Now accepts operand arg.
1802 (main): Check for -1, not EOF, when calling getopt_long.
1803 Report --ignore-initial value when complaining about it.
1804 Output copyright and free software info with -v.
1805 Don't assume ASCII.
1806 Report last operand when one is missing.
1807 Report text of extra operand.
1808 Move block_read into cmpbuf.c.
1810 * diff.c (authorship_msgid): New var.
1811 (quotesys.h): Include.
1812 (ck_atoi): Remove.
1813 (function_regexp_list, ignore_regexp_list): Now static.
1814 (binary_flag): Renamed from binary_I_O.
1815 (entire_new_file_flag, unidirectional_new_file_flag,
1816 print_file_same_flag): Now static.
1817 (numeric_arg): Renamed from ck_atoi.
1818 New argument specifying the argument type.
1819 (longopts, main): Don't assume ASCII.
1820 (longopts): Remove old aliases --file-label, --entire-new-file,
1821 --ascii, --print.
1822 (main): Check for -1, not EOF, when calling getopt_long.
1823 Use numeric_arg to report errors.
1824 Report error if -l specified but pagination is not supported.
1825 Report error if -S is specified twice with conflicting values.
1826 Have --version conform to the new GNU standards.
1827 Add new --from-file, --to-file, --inhibit-hun,-merge options.
1828 Make the horizon at least as large as the context.
1829 Add casts to pacify gcc -Wall.
1830 (try_help): Add operand arg.
1831 (option_help_msgid): Doc fix to match above.
1832 (usage): Indent option_help_msgid.
1833 (compare_files): Now takes struct comparison
1834 instead of two directory names and a depth.
1835 (NONEXISTENT, UNOPENED, ERRNO_ENCODE, ERRNO_DECODE):
1836 New macros.
1837 (DIR_P): New macro.
1838 Report error if fflush does.
1840 * cmpbuf.c (block_read): Moved here from cmp.c.
1842 * cmpbuf.h (block_read): New decl.
1844 * io.c (cmpbuf.h): Include.
1845 (slurp): Check for arithmetic overflow when computing buffer size.
1847 * dir.c (diff_dirs): Check for recursive directory loop.
1848 Arg is now struct comparison const *.
1849 (dir_loop): New function
1851 * analyze.c (no_discards): Remove.
1852 (inhibit): Remove.
1853 (shift_boundaries): Don't inhibit. If inhibit_hunk_merge is nonzero,
1854 don't merge hunks.
1855 (briefly_report): Now returns 2 if trouble, CHANGES otherwise.
1856 (diff_2_files): Now takes struct comparison. If briefly_report reports
1857 trouble, pass it on to caller.
1859 * side.c (print_half_line): Add brackets to pacify GCC -Wall.
1861 * sdiff.c (quotesys.h): Include.
1862 (DIFF_PROGRAM, DEFAULT_EDITOR_PROGRAM): Remove.
1863 (free_software_msgid, editor_program, not_found): New vars.
1864 (diffbin, edbin): Remove.
1865 (editor_program): Renamed from edbin.
1866 (edit, interact): Now take extra string arg.
1867 (exiterr, fatal, perror_fatal, try_help): Add noreturn attribute.
1868 (sigset_t, sigemptyset, sigmask, sigaddset, SIG_BLOCK, SIG_SETMASK):
1869 (sigprocmask): New macros, if !HAVE_SIGPROCMASK.
1870 (error): Now has printf attribute.
1871 (longopts, main): Don't assume ASCII.
1872 (try_help): New operand arg.
1873 (usage): Conform to new GNU standards.
1874 (main): Set static vars for editor and diff program.
1875 Compare getopt_long result to -1, not EOF.
1876 -v conforms to new GNU standard.
1877 Complain better about extra and missing operands.
1878 If HAVE_VFORK, block SIGINT and SIGPIPE in the parent, since when
1879 the child munges its handlers it may somp on the parent.
1880 Pass rname to intract.
1881 Translate not-found message before forking.
1882 (give_help): Just output it all at once.
1883 (edit): New args lname, lline, rname, rline.
1884 (edit): New command 'd'.
1885 (interact): New args lname, rname.
1887 * util.c (quotesys.h): Include.
1888 (PR_PROGRAM): New macro.
1889 (pfatal_with_name): Abort if error returns.
1890 (fatal): Likewise.
1891 (print_message_queue): Free message chain after printing.
1892 (currently_recursive): Renamed from current_depth, and now a boolean.
1893 (begin_output): Report error if fflush does.
1894 Avoid stdio and gettext in child.
1896 * diff3.c (quotesys.h): Include.
1897 (free_software_msgid): New decl.
1898 (RANGE_START, RANGE_END): Renamed from START and END.
1899 (fatal, perror_with_exit, try_help): Add noreturn attribute.
1900 (error): Add printf attribute.
1901 (diff_program): Now a ptr, not an array.
1902 Initialize to DEFAULT_DIFF_PROGRAM instead of DIFF_PROGRAM.
1903 (longopts, main): Don't assume ASCII.
1904 (main): Use DIFF environment var to specify name of diff program.
1905 Compare getopt_long result to -1, not EOF.
1906 -v now reports version according to new GNU standard.
1907 Report spelling of extra operand, or last operand before missing one.
1908 (try_help): Now takes operand arg.
1909 (option_help_ms): Fix typo: missing comma.
1910 (usage): Update as per current GNU standards.
1911 (environ): Remove decl.
1912 (read_diff): Invoke diff with --inhibit-hunk-merge.
1913 Translate `not found' message before forking.
1914 Quote name of diff program.
1915 Pass horizon lines.
1916 `memory exhausted' -> `Memory exhausted'
1918 * pc/makefile (%.exe): Remove.
1919 (pc-clean): Remove *.exe
1920 * pc/makefile.sed (DEFAULT_DIFF_PROGRAM): Renamed from DIFF_PROGRAM.
1921 When editing mkinstalldirs rule, look for exec_prefix and prefix.
1922 Add .exe when installing files.
1923 * pc/emx/config.h (same_file): Add.
1924 * pc/config.h (same_file): Remove.
1925 * pc/djgpp/config.h: Adjust to latest patch from eliz.
1926 * pc/djgpp/makefile.sed: Don't alter PROGRAMS.
1927 * pc/pc.c: Update FSF address.
1928 (quote_system_arg): Renamed from system_quote_arg.
1930 * README: Add --with-mvfs-stat-bug, --with-nfs-stat-bug.
1932 * getmsgids: Add copyright date and update FSF address.
1934 * diff.texi: Document recent changes.
1935 The patch doc still corresponds to patch 2.2, unfortunately.
1936 Update GNU bug reporting address. Omit Larry Wall's address;
1937 it's obsolete and he's busy with perl.
1939 * context.c: Fix spacing.
1941 * NEWS: Mention --from-file=FILE, --to-file=FILE, ed.
1943 * acconfig.h, freesoft.c, message/de.po, message/en_UK.po,
1944 message/es.po, message/fr.po, message/pl.po, message/sv.po:
1945 New files.
1947 * ed.c: Remove `#if 0'ed code.
1949 * normal.c, waitpid.c: Update FSF address.
1951 1998-03-15 Paul Eggert <eggert@twinsun.com>
1953 * quotesys.c: Renamed from quotearg.c.
1955 * quotesys.h: Renamed from quotearg.h
1956 (__QUOTESYS_P): Renamed from __QUOTEARG_P.
1958 1997-05-05 Paul Eggert <eggert@twinsun.com>
1960 * quotesys.c, quotesys.h: New file.
1962 Mon Nov 14 05:10:56 1994 Paul Eggert <eggert@twinsun.com>
1964 Add internationalization support.
1965 Several messages have been changed slightly,
1966 to make them more consistent and easier to translate.
1967 All strings that are messages are passed through gettext once before
1968 being used, so that they can be localized.
1969 Each function and macro whose first parameter is a gettext msgid
1970 has had its first parameter's name changed so it ends in `msgid'.
1971 All arrays of msgids have had their names changed to end in `msgid'.
1972 `getmsgids' uses this to determine which strings are msgids.
1974 * pc/COPYING, pc/INSTALL, pc/config.h,
1975 pc/djgpp/config.h, pc/djgpp/makefile.sed,
1976 pc/emx/config.h, pc/emx/diff.def, pc/emx/gnuregex.def,
1977 pc/emx/makefile.sed,
1978 pc/makefile, pc/makefile.sed, pc/pc.c: New files, for PC support.
1980 * getmsgids: New file.
1982 * Makefile.in (PACKAGE, VERSION, diffutils_srcs, D): New vars.
1983 (version.c, version.texi, messages.po): New files.
1984 messages.po is built automatically from source files and `getmsgids'.
1985 (distfiles): Add them, pc/*, and getmsgids.
1986 (diff.info): Now depends on version.texi.
1987 (realclean): Clean messages.po, version.*.
1988 (dist): Just build $D.tar.gz.
1989 ($D.tar.gz): New file, takes over old `dist' function.
1990 Don't assume $(distfiles) are all in same directory.
1992 * configure.in (AC_CHECK_HEADERS): Add libintl.h, locale.h.
1993 (AC_CHECK_LIB): Check for -lintl.
1995 * analyze.c (briefly_report): Rewrite `message (A?"B":"C")' as
1996 `if (A) message ("B") : message ("C")'; this is for getmsgids.
1997 (briefly_report, diff_2_files): For label, use file_label if set.
1998 * diff.c (compare_files): Likewise.
2000 * system.h (gettext): Declare; use a stub if ! HAVE_LIBINTL_H.
2001 (setlocale): Declare; use a stub if ! HAVE_LOCALE_H.
2003 * cmp.c, diff.c, diff3.c, sdiff.c (main):
2004 Invoke setlocale first thing, to tell library we're internationalized.
2005 (option_help_msgid): New constant.
2006 (usage): Use it, so message is translated one option at a time.
2007 * sdiff (help_msgid, give_help): Likewise.
2009 * cmp.c (sprintc): Renamed from `printc'.
2010 Now outputs to a buffer instead of stdout.
2011 (cmp): Use new sprintc; it's easier to internationalize.
2013 * diff.c (main): -D FOO now outputs `/* ! FOO */ instead of
2014 `/* not FOO */'.
2016 * sdiff.c (version_string): Fix decl typo: `const' was missing.
2017 (trapsigs): Ignore sigaction failure, to be compatible with `signal'.
2019 * util.c (struct msg, message5, print_message_queue):
2020 Allocate just one block of memory to save a message.
2022 Wed Nov 9 17:42:44 1994 Paul Eggert <eggert@twinsun.com>
2024 * sdiff.c (trapsigs): Don't check signal return value, since it's
2025 bogus under djgpp.
2027 Mon Oct 31 07:27:27 1994 Paul Eggert <eggert@twinsun.com>
2029 * Makefile.in (srcs, diff_o, diff3_o, sdiff_o):
2030 New files quote.c, quote.o.
2032 * diff.h (function_regexp, ignore_regexp): Replace lists of compiled
2033 regexps with these single compiled regexps. All users changed.
2034 (regexp_list,function_regexp_list,ignore_regexp_list): Move to diff.c.
2035 * diff.c (add_regexp): Build one big regexp instead of a regexp list.
2036 (summarize_regexp_list): New function.
2037 (regexp_list): Redesigned struct; moved here from diff.h.
2038 (function_regexp_list, ignore_regexp_list): Likewise, for vars.
2040 * context.c (find_function): Simplify interface:
2041 don't return size of function line. All callers changed.
2042 (print_context_script, find_function): INT_MAX now denotes no
2043 previous match; this is simpler than `- file->prefix_lines - 1'.
2045 * diff3.c (read_diff): Quote arguments with system_quote_arg.
2046 * sdiff.c (main): Use system_quote_arg to compute command.
2047 * diff.c (option_list): Quote options with system_quote_arg.
2048 * util.c (begin_output): Use system_quote_arg to compute command.
2050 * util.c (pr_program): New var.
2051 (analyze_hunk): Fix off-by-1 line length bug.
2052 Match with one big regexp instead of a list of regexps.
2053 Use new `trivial_length' local instead of comparing first byte to `\n'.
2054 Help the compiler with linbuf local vars.
2056 * system.h (system_quote_arg):
2057 New function; replaces SYSTEM_QUOTE_ARG macro.
2059 Sat Oct 15 20:09:12 1994 Paul Eggert <eggert@twinsun.com>
2061 * system.h (_tolower): Define if not already defined.
2062 * io.c (find_and_hash_each_line): Change tolower to _tolower; this
2063 speeds up diff -i considerably on some hosts (e.g. Solaris 2.3).
2064 * util.c (line_cmp): Likewise.
2065 * ifdef.c (groups_letter_value): Likewise.
2067 * diff.h (ignore_some_line_changes): Remove. All users changed.
2068 * io.c (find_and_hash_each_line): Don't invoke line_cmp if the length
2069 differs and -i is in force. Don't assume ISSPACE ('\n') is nonzero.
2071 * diff.h (xmalloc_exit_failure): New variable.
2072 All `main' programs set this variable at the start.
2073 xmalloc and xrealloc are now taken from GNU library.
2074 * cmp.c (main): Align buffer size to word size; some mallocs care.
2075 * io.c (slurp): Likewise.
2076 * diff.c (add_exclude): Can now assume xrealloc (0, ...) works.
2077 (add_regexp): Free storage on failure. Allocate storage all at one go.
2078 * system.h (malloc, realloc): Remove unused declarations.
2079 * diff3.c, sdiff.c, util.c (xmalloc, xrealloc): Remove.
2080 * sdiff.c (diffarg): Take advantage of cleaner xrealloc semantics.
2082 * io.c (ROL): Use sizeof to make it more generic.
2084 * Makefile.in (common_o): New variable.
2085 Link error.o and xmalloc.o into all programs.
2086 (check): Depend on $(PROGRAMS).
2088 * diff.h (error): Change to GNU library standard. All callers changed.
2089 * diff3.c (main): Use strerror (EISDIR) instead of "Is a directory".
2090 (fatal, perror_with_exit): Use `error'.
2091 * util.c (perror_with_name, fatal): Use GNU `error'.
2092 (error): Remove.
2094 Wed Oct 12 17:04:40 1994 David J. MacKenzie (djm@duality.gnu.ai.mit.edu)
2096 * cmp.c (main): Set xmalloc_exit_failure.
2098 Sat Oct 1 05:24:19 1994 Paul Eggert <eggert@twinsun.com>
2100 * Version 2.7 released.
2102 * configure.in (AC_HEADER_SYS_WAIT): Add.
2103 (AC_CHECK_HEADERS): Remove sys/wait.h.
2104 (AC_CHECK_FUNCS): Add tmpnam.
2105 * system.h (<sys/wait.h>, WEXITSTATUS): Use simpler scheme
2106 now that HAVE_SYS_WAIT_H is not set on hosts
2107 that are incompatible with Posix applications.
2109 * util.c (dir_file_pathname): Use filename_lastdirchar not strrchr.
2110 * sdiff.c (expand_name): Likewise.
2111 (private_tempnam): Use tmpnam if HAVE_TMPNAM; this simplifies porting.
2112 (exists, letters): Omit if HAVE_TMPNAM.
2114 * diff3.c (read_diff): If STAT_BLOCKSIZE yields zero,
2115 adjust it to a more reasonable value.
2117 Sat Sep 24 20:36:40 1994 Paul Eggert <eggert@twinsun.com>
2119 * sdiff.c (exists, private_tempname): Adopt latest GNU libc algorithm.
2120 (private_tempnam): Specialize for sdiff to avoid portability problems.
2122 Thu Sep 22 16:47:00 1994 Paul Eggert <eggert@twinsun.com>
2124 * configure.in (AC_ARG_PROGRAM): Added.
2125 (AC_OUTPUT): Add [date > stamp-h].
2127 * Makefile.in (DEFAULT_EDITOR_PROGRAM, DIFF_PROGRAM, LIBOBJS,
2128 NULL_DEVICE, PR_PROGRAM, PROGRAMS): New variables.
2129 (check, stamp-h.in, cmp.o, util.o): New targets.
2130 (edit_program_name): New variable; replaces old binprefix method.
2131 (install, uninstall): Use it.
2132 (binprefix): Removed.
2133 (distfiles): Add stamp-h.in.
2134 (clean): Clean stamp-h.
2135 (config.hin, config.h): Use time stamp files.
2136 (cmp_o): Add $(LIBOBJS).
2137 (install): Install info files from srcdir if they're not in `.'.
2139 * cmp.c, io.c (word): Don't define if already defined.
2141 * comp.c (main): Use setmode, not open(..., O_BINARY); this gets stdin.
2142 Use NULL_DEVICE instead of "/dev/null".
2143 (cmp): Use %lu instead of %ld when it is more likely to be right.
2145 * diff.h (PR_FILE_NAME): Rename to PR_PROGRAM and move to Makefile.in,
2146 util.c.
2148 * diff3.c (main): Give proper diagnostic if too many labels were given.
2149 (read_diff): Use SYSTEM_QUOTE_ARG.
2151 * system.h: <string.h>: Include if HAVE_STRING_H, too.
2152 <ctype.h>: Include here. All includers changed.
2153 (CTYPE_DOMAIN, ISDIGIT, ISPRINT, ISSPACE, ISUPPER): New macros that
2154 work around common <ctype.h> problems.
2155 (O_BINARY): Remove.
2156 (SYSTEM_QUOTE_ARG): New macros.
2158 * diff.c: Add comment.
2160 * util.c (PR_PROGRAM): Moved here from diff.h.
2161 (begin_output): Use SYSTEM_QUOTE_ARG.
2163 * io.c (read_files): Set mode to binary before returning 1.
2165 * sdiff.c (TMPDIR_ENV): New macro.
2166 (DEFAULT_EDITOR_PROGRAM): Renamed from DEFAULT_EDITOR for consistency.
2167 (expand_name): Change `isdir' to `is_dir' to avoid theoretical ctype
2168 namespace contamination.
2169 (main): Use SYSTEM_QUOTE_ARG.
2170 (private_tempnam): Don't access "/tmp" directly; use PVT_tmpdir.
2172 Tue Sep 13 18:46:43 1994 Paul Eggert <eggert@twinsun.com>
2174 * configure.in (AC_FUNC_MEMCHR): Remove. Autoconf didn't adopt this,
2175 since we need not worry about an old experimental library
2176 where memchr didn't work.
2177 (AC_FUNC_MEMCMP): Not needed, since we only test for equality.
2178 (AC_REPLACE_FUNCS): Add test for memchr.
2179 (AC_CHECK_FUNCS): Check for memchr, not memcpy, since it'll be cached.
2180 (AC_CHECK_HEADERS): Add string.h; regex.c uses on some old hosts.
2182 * system.h (memcmp): Define in terms of bcmp.
2183 Use HAVE_MEMCHR to test for all mem* routines.
2185 * Makefile.in (srcs): Remove memcmp.c.
2186 We use bcmp if memcmp doesn't work, since we only test for equality.
2188 Mon Sep 12 15:52:22 1994 Paul Eggert <eggert@twinsun.com>
2190 * configure.in (AC_CONFIG_HEADER): Rename config.h.in to config.hin.
2191 (AC_ISC_POSIX, AC_MINIX): Go back to these old names for Autoconf 2.
2192 (AC_CHECK_HEADERS): Remove now-redundant check for <string.h>.
2193 (AC_CHECK_FUNCS): Check for strchr.
2194 (AC_FUNC_MEMCHR, AC_FUNC_MEMCMP, AC_CHECK_FUNCS): Use special-purpose
2195 macros when suitable.
2196 * memcmp.c: New file.
2197 * Makefile.in (CPPFLAGS, DEFS, CFLAGS, LDFLAGS, prefix, exec_prefix):
2198 Default to autoconf-specified strings.
2199 (COMPILE): Use the defaults.
2200 (srcs): Add memcmp.c.
2201 (distfiles): Rename config.h.in->config.hin, install.sh->install-sh.
2202 (Makefile, config.h, config.hin, config.status): Rework for
2203 compatibility with Autoconf 2.
2204 * io.c (binary_file_p): Assume non-broken memchr.
2205 * memchr.c: Assume compiler understands void *; otherwise
2206 we don't match GCC's internal declaration of memchr.
2207 * system.h: Use more modern autoconf approach to standard C headers.
2208 * version.c: Include <config.h>, not "config.h".
2210 * diff.c, diff.h (ignore_some_line_changes):
2211 New variable; replaces `length_varies'.
2212 (line_end_char): Replace with '\n'; it wasn't being used consistently.
2214 * io.c (find_and_hash_each_line): Fix inconsistencies with -b -w -i and
2215 incomplete lines. Put incomplete lines into their own bucket.
2216 This means line_cmp no longer needs line length arguments,
2217 and equivalence classes' line lengths no longer need to include \n.
2218 Invoke line_cmp only if ignore_some_line_changes.
2219 (prepare_text_end): -B no longer ignores missing newlines.
2220 (read_files): Allocate another bucket for incomplete lines.
2222 * util.c (line_cmp): Now takes just two arguments. No longer
2223 optimizes for common case of exact equality; the caller does that
2224 optimization now. The caller is changed accordingly.
2225 Optimize for the common case of mostly equality.
2226 Use isupper+tolower instead of islower+toupper, for consistency.
2228 * waitpid.c (waitpid): Fix typo with internal scoping.
2230 Thu Sep 8 08:23:15 1994 Paul Eggert <eggert@twinsun.com>
2232 * configure.in: Revamp for Autoconf 2.
2233 * memchr.c, waitpid.c: New source files for substitute functions.
2234 * Makefile.in (diff_o, diff3_o, sdiff_o): Add $(LIBOBJS).
2235 (srcs): Add memchr.c, waitpid.c.
2236 (distfiles): Add install.sh, memchr.c, waitpid.c, install.sh.
2237 * system.h: Use Autoconf 2 style HAVE_DIRENT_H etc. macros for dirs.
2238 * dir.c (dir_sort): Prefer NAMLEN (p) to strlen (p->d_name).
2239 Change VOID_CLOSEDIR to CLOSEDIR_VOID for Autoconf 2.
2240 * sdiff.c, util.c (memchr, waitpid): Remove; use new substitutes.
2241 * diff3.c (read_diff): Use new waitpid substitute.
2243 * cmp.c, diff.c, diff3.c, sdiff.c (check_stdout, try_help): New fns.
2244 (usage): Just print more detailed usage message; let caller exit.
2245 * diff.c (option_help): New variable.
2246 (filetype): Add Posix.1b file types.
2248 Fri Sep 2 16:01:49 1994 Paul Eggert <eggert@twinsun.com>
2250 * configure.in: Switch to new autoconf names. Add sys/file.h test.
2251 * Makefile.in (distclean): Clean config.cache, config.log
2252 (used by new autoconf).
2254 * diff.c, diff3.c, (main), sdiff.c (trapsigs): If we'll have children,
2255 make sure SIGCHLD isn't ignored.
2257 * diff3.c (DIFF_CHUNK_SIZE): Removed. Get size from STAT_BLOCKSIZE.
2258 (INT_STRLEN_BOUND): New macro.
2260 * ifdef.c (format_group, groups_letter_value):
2261 Use * instead of [] in prototypes.
2263 * system.h: Include <sys/file.h> only if HAVE_SYS_FILE_H.
2264 (S_IXGRP, S_IXOTH, S_IXUSR): Remove unused macros.
2266 * util.c (begin_output): Check fdopen result.
2268 The following changes simplify porting to non-Posix environments.
2269 * cmp.c, diff.c, diff3.c, sdiff.c, (main): Call initialize_main first.
2270 * diff.c (binary_I_O): New variable for --binary option.
2271 (main, usage, compare_files): Support --binary option.
2272 (compare_files): Use filename_lastdirchar to find last
2273 directory char in a file name.
2274 * cmp.c (main), diff.c (compare_files), dir.c (compare_names,
2275 diff_dirs): Use filename_cmp to compare file names.
2276 Use same_file to determine whether two files are the same.
2277 * context.c (print_context_label): Check whether ctime yields 0.
2278 * diff3.c (read_diff), sdiff.c (cleanup, main, waitpid),
2279 util.c (begin_output): Use popen+pclose if !HAVE_FORK.
2280 * io.c (sip): If HAVE_SETMODE, test for binary files in O_BINARY mode.
2281 * sdiff.c (ck_fdopen): Function removed.
2282 (edit): Use system if !HAVE_FORK.
2283 (execdiff): Now assumes caller has pushed all args, plus trailing 0.
2284 All callers changed.
2285 (private_tempnam): Try TMP if TMPDIR isn't defined.
2286 Fit temporary filenames into 8.3 limit.
2287 * system.h (STAT_BLOCKSIZE): Don't define if already defined.
2288 (min, max): Undef if already defined.
2289 (filename_cmp, filename_lastdirchar, HAVE_FORK, HAVE_SETMODE,
2290 initialize_main, O_BINARY, same_file): New macros.
2292 Fri Jun 17 11:23:53 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu)
2294 * Makefile.in (info, dvi, diff.dvi): New targets.
2295 (clean): Remove TeX output files.
2297 Fri Jun 17 05:37:52 1994 Paul Eggert (eggert@twinsun.com)
2299 * cmp.c, io.c (word): Change from typedef to #define, to avoid
2300 collision with Unicos 8.0 <sys/types.h>, which also typedefs `word'.
2302 Thu Apr 15 00:53:01 1994 Paul Eggert (eggert@twinsun.com)
2304 * diff3.c (scan_diff_line), util.c (print_number_range): Don't
2305 rely on promotion to make the old-style parameter type agree
2306 with the prototype parameter type; this doesn't work on
2307 Apollos running bsd4.3.
2309 Mon Jan 3 02:05:51 1994 Paul Eggert (eggert@twinsun.com)
2311 * Makefile.in (LDFLAGS): Remove -g. Change all link commands
2312 to use both $(CFLAGS) and $(LDFLAGS).
2314 Mon Dec 13 12:23:27 1993 Paul Eggert (eggert@twinsun.com)
2316 * system.h: Don't assume dirent.h exists just because
2317 _POSIX_VERSION is defined.
2319 Fri Dec 3 18:39:39 1993 Paul Eggert (eggert@twinsun.com)
2321 * diff.c (main): allow -pu.
2323 Tue Nov 23 03:51:08 1993 Paul Eggert (eggert@twinsun.com)
2325 * Makefile.in (distclean): Remove config.h.
2327 Wed Nov 10 00:28:27 1993 Paul Eggert (eggert@twinsun.com)
2329 * Version 2.6 released.
2331 * analyze.c (too_expensive): New variable, for heuristic to
2332 limit the worst-case cost to O(N**1.5 log N) at the price of
2333 producing suboptimal output for large inputs with many differences.
2334 (diff_2_files): Initialize it.
2335 (struct partition): New type.
2336 (SNAKE_LIMIT): New macro; merely documents already-used number 20.
2337 (diag): New `minimal' arg; all callers changed. Put results into
2338 struct partition. Apply `too_expensive' heuristic. Tune.
2339 (compareseq): New `minimal' arg; all callers changed. Tune.
2340 (shift_boundaries): Improve heuristic to also coalesce adjacent runs
2341 of changes more often.
2343 * diff.c (long_options, main, usage): Add `--help'.
2344 (main): Send version number to stdout, not stderr.
2345 (usage): Send usage to stdout, not stderr.
2346 (compare_files): Initialize `inf' properly.
2348 * io.c (word): Change to `int'; it makes a big difference on x86.
2349 (sip, slurp): Put off allocating room to hold the whole file until we
2350 have to read the whole file. This wins if the file turns out
2351 to be binary.
2353 * util.c (xmalloc, xrealloc): "virtual memory" -> "memory"
2354 (primes): Omit large primes if INT_MAX is small.
2356 * sdiff.c (usage): Send usage to stdout, not stderr.
2357 (long_options, main, usage): Add `--help'.
2358 (main): Send version number to stdout, not stderr. Exit afterwards.
2360 * diff3.c (usage): Send usage to stdout, not stderr.
2361 (long_options, main, usage): Add `--help'.
2362 (read_diff): Detect integer overflow in buffer size calculations.
2364 * cmp.c (word): New type. All uses of `long' for
2365 word-at-a-time comparisons changed to `word'.
2366 (long_options, main, usage): Add `--help'.
2367 (usage): Send usage to stdout, not stderr.
2368 (main): Add `-v'. Send version number to stdout, not stderr.
2370 * configure.in (AC_HAVE_HEADERS): Add unistd.h; remove AC_UNISTD_H.
2372 Mon Sep 27 07:20:24 1993 Paul Eggert (eggert@twinsun.com)
2374 * diff.c (add_exclude_file): Cast memchr to (char *)
2375 to suppress bogus warnings on some nonstandard hosts.
2377 * Makefile.in (cmp): Add version.o.
2379 * analyze.c (diff_2_files): Work around memcmp bug with size=0.
2381 * cmp.c (main, usage, version_string): Add --version option.
2383 * system.h (malloc, realloc): Declare only if !HAVE_STDLIB_H.
2384 (memchr): Declare only if !HAVE_MEMCHR. These changes are
2385 needed to keep some nonstandard hosts happy.
2387 * util.c (memchr): Make first arg char const *
2388 to match standard.
2389 (xmalloc, xrealloc): Cast malloc, realloc
2390 to (VOID *) to suppress bogus warnings on some nonstandard hosts.
2392 * diff3.c (xmalloc, xrealloc): Cast malloc, realloc
2393 to (VOID *) to suppress bogus warnings on some nonstandard hosts.
2395 * sdiff.c (xmalloc, xrealloc): Cast malloc, realloc
2396 to (VOID *) to suppress bogus warnings on some nonstandard hosts.
2397 (lf_copy, lf_skip, lf_snarf): Cast memchr to (char *)
2398 to suppress bogus warnings on some nonstandard hosts.
2399 (memchr): Make first arg char const *
2400 to match standard.
2402 Mon Sep 27 00:23:37 1993 Paul Eggert (eggert@twinsun.com)
2404 * Version 2.5 released.
2406 * analyze.c (diff_2_files): Work around memcmp bug with size=0.
2408 * cmp.c (main, usage, version_string): Add --version option.
2409 * Makefile.in (cmp): Add version.o.
2411 * diff.c (add_exclude_file): Cast memchr to (char *)
2412 to suppress bogus warnings on some nonstandard hosts.
2413 * sdiff.c (lf_copy, lf_skip, lf_snarf): Likewise.
2415 * diff3.c, sdiff.c, util.c (xmalloc, xrealloc): Cast malloc, realloc
2416 to (VOID *) to suppress bogus warnings on some nonstandard hosts.
2418 * sdiff.c, util.c (memchr): Make first arg char const *
2419 to match standard.
2421 * system.h (malloc, realloc): Declare only if !HAVE_STDLIB_H.
2422 (memchr): Declare only if !HAVE_MEMCHR. These changes are
2423 needed to keep some nonstandard hosts happy.
2425 * xmalloc.c: Include <sys/types.h> always; some nonstandard hosts
2426 need it for size_t even if STDC_HEADERS.
2428 Sat Sep 18 01:33:07 1993 Paul Eggert (eggert@twinsun.com)
2430 * configure.in (AC_STAT_MACROS_BROKEN): Add.
2431 * system.h (S_IS{BLK,CHR,DIR,FIFO,REG,SOCK}): Fix defns if
2432 STAT_MACROS_BROKEN.
2434 * Makefile.in (diff3, sdiff, cmp): Do not link $(ALLOCA).
2436 * analyze.c (discard_confusing_lines): Make defn static, like decl.
2437 * sdiff.c (xmalloc): Likewise.
2439 * ifdef.c (format_group): Ensure isdigit argument isn't < 0.
2441 * side.c (print_half_line): Use isprint, since some hosts lack isgraph.
2442 * util.c (output_1_line): Likewise. Ensure its argument isn't < 0.
2443 (xmalloc, xrealloc): Remove needless casts.
2445 * system.h (volatile, const):
2446 Define these before including any system headers,
2447 so that they're used consistently in all system includes.
2448 (getenv, malloc, realloc): Declare even if HAVE_STDLIB_H, since some
2449 <stdlib.h>s don't declare them.
2450 (memchr): Likewise for <string.h>.
2452 * cmp.c, diff3.c, diff.h, sdiff.c: Include "system.h" first.
2453 * diff.c: Remove redundant "system.h" inclusion.
2455 * diff3.c (xmalloc): Now static.
2456 (xmalloc, realloc): Remove needless casts.
2457 (READNUM): Ensure isdigit argument isn't negative.
2459 Wed Sep 14 07:14:15 1993 Paul Eggert (eggert@twinsun.com)
2461 * Version 2.4 released.
2463 * ifdef.c (scan_char_literal): New function, for new %c'x' and
2464 %c'\ooo' format specs.
2465 (format_group, print_ifdef_lines): Use it. Remove %0 format spec.
2467 * cmp.c (cmp): Don't try to read past end of file; this doesn't
2468 work on ttys.
2470 * system.h, version.c: #include <config.h>, not "config.h", to allow
2471 configuring in a separate directory when the source directory has
2472 already been configured.
2473 * Makefile.in (COMPILE): New defn, with proper -I options so that
2474 `#include <config.h>' works.
2475 (.c.o, diff3.o, sdiff.o): Use it.
2477 Mon Sep 13 06:45:43 1993 Paul Eggert (eggert@twinsun.com)
2479 * diff.c (main, longopts): Add --line-format=FORMAT option.
2480 (specify_format): Args no longer const pointers. All callers changed.
2482 * ifdef.c: Add support for %?c, %(A=B?T:E), PRINTF_SPECn formats.
2483 (struct group): New struct.
2484 (print_ifdef_lines): Use it to simplify argument passing.
2485 Remove the convention that last arg -1 signifies that the lines
2486 from file 2 are the same as the lines from file 1; this
2487 convention no longer works, now that line numbers might be
2488 printed out, since the line numbers may differ.
2489 Add first FILE * argument to output to. All callers changed.
2490 Use a faster test for the single-fwrite optimization.
2491 (format_group, scan_printf_spec, groups_letter_value): New functions.
2493 * diff.h (group_format, line_format): No longer const pointers.
2494 (format_ifdef): 1st arg is no longer const pointer.
2496 * configure.in: Configure HAVE_LIMITS_H, HAVE_STDLIB_H.
2497 * system.h <limits.h>, <stdlib.h>, <string.h>:
2498 Include only if HAVE_LIMITS_H etc.
2500 * system.h (memcmp, memcpy, strchr, strrchr, struct dirent): Prefer
2501 these standard names to the traditional names (bcmp, bcpy, index,
2502 rindex, struct direct). All callers changed.
2504 * system.h (PARAMS, VOID):
2505 Define earlier so that malloc decl can use VOID.
2506 (STAT_BLOCKSIZE): Simplify ersatz defn; just use 8K.
2508 Fri Sep 3 00:21:02 1993 Paul Eggert (eggert@twinsun.com)
2510 * diff.c (compare_files): Two files with the same name must be
2511 the same file; avoid a needless `stat' in that case.
2513 Fri Aug 27 06:59:03 1993 Paul Eggert (eggert@twinsun.com)
2515 * Pervasive changes for portability to 64-bit hosts:
2516 Add prototypes to function declarations.
2517 Use size_t, not int, when needed.
2519 * Other pervasive changes:
2520 Use `const' more often.
2521 Use STD{IN,OUT,ERR}_FILENO instead of [012].
2522 Use 0, not NULL, for portability to broken hosts.
2524 * Makefile.in: (srcs, objs, distfiles, cmp): New files cmpbuf.[ch].
2525 (distfiles): New files config.h.in, mkinstalldirs.
2526 (.c.o): Add -DHAVE_CONFIG_H.
2528 * analyze.c: (diag): Pacify `gcc -Wall' with a useless assignment.
2529 (diff_2_files): Use l.c.m., not max, of files' buffer sizes.
2531 * cmp.c: Make globals static when possible.
2533 (file): Now a 2-element array; replaces `file1' and `file2'.
2534 (file_desc, buffer): Likewise, for file[12]_desc and buf[12].
2535 (main): Likewise, for stat_buf[12]. Index these variables with `i'.
2537 (ignore_initial): New var.
2538 (long_options): Now const. Add `--ignore-initial'.
2539 (usage): Sort options and add `--ignore-initial'.
2540 (main, cmp): Add `--ignore-initial' support.
2542 (main): `cmp - -' now succeeds.
2543 When comparing standard input to a file, and using a shortcut (e.g.
2544 looking at file sizes or inode numbers), take the lseek offset into
2545 account before deciding whether the files are identical.
2546 Avoid mentioning `dev_t', `ino_t' for portability to nonstandard hosts.
2547 Use l.c.m. of files' buffer sizes, not 8 * 1024.
2548 ferror (stdout) does not imply errno has a useful value.
2549 If 2nd file is "-", treat it first, in case stdin is closed.
2551 (cmp): Always compute `char_number', `smaller' for speed and simplicity.
2552 Say `cmp: EOF on input', not `/usr/gnu/bin/cmp: EOF on input',
2553 as per Posix.2.
2555 (block_compare_and_count): Increment line_number argument.
2556 Remove end_char argument; it's always '\n'. All callers changed.
2557 Do not assume sizeof(long) == 4; this isn't true on some 64-bit hosts.
2558 (block_compare): Minimize differences with block_compare_and_count.
2560 (block_read): Coalesce `bp += nread's.
2562 (printc): Remove `FILE *' arg; output to stdout. All callers changed.
2564 * configure.in: Configure HAVE_SIGACTION, RETSIGTYPE, HAVE_VPRINTF.
2565 Configure into config.h.
2567 * context.c (print_context_label):
2568 Standard input's st_mtime is no longer a special case
2569 here, since `compare_files' now sets it to the current time.
2571 * diff.c (usage): Sort options.
2572 (filetype): New function.
2573 (compare_files): Set stdin's st_mtime to be the current time.
2574 Leave its name "-" instead of changing it to "Standard Input";
2575 to test whether a file is stdin, we must compare its name to "-" instead
2576 of its desc to 0, since if it's closed other file descs may be 0.
2577 When comparing standard input to a file, and using a shortcut (e.g.
2578 looking at file sizes or inode numbers), take the lseek offset into
2579 account before deciding whether the files are identical.
2580 Pretend that nonexistent files have the same filetype as existing files.
2581 Rename `errorcount' to `failed', since it's boolean.
2582 In directory comparisons, if a file is neither a regular file nor a
2583 directory, just print its type and the other file's type.
2585 * diff.h (Is_space, textchar): Remove.
2586 (struct msg, msg_chain, msg_chain_end): Move to util.c.
2587 (VOID): Move to system.h.
2588 (line_cmp, version_string, change_letter, print_number_range,
2589 find_change): New decls.
2591 * diff.texi:
2592 whitespace -> white space. It now stands for whatever isspace yields.
2593 Add --ignore-initial.
2595 * diff3.c (VOID): Move to system.h.
2596 (version_string): Now char[].
2597 (usage): Sort options.
2598 (process_diff): Pacify `gcc -Wall' with a useless assignment.
2599 (read_diff): pid is of type pid_t, not int. Use waitpid if available.
2600 (output_diff3): Simplify test for `\ No newline at end of file' message.
2602 * dir.c (struct dirdata): Rename `files' to `names' to avoid confusion
2603 with external struct file_data `files'.
2605 * io.c (line_cmp): Move declaration to diff.h.
2606 (textchar): Remove.
2607 (find_and_hash_each_line): Use locale's definition of white space
2608 instead of using one hardwired defn for -b and another for -w.
2610 * normal.c (change_letter, print_number_range, find_change):
2611 Move decls to diff.h.
2612 (print_normal_hunk): Now static.
2614 * sdiff.c (SEEK_SET): Move to system.h.
2615 (version_string): Now char[], not char*.
2616 (private_tempnam): Remove hardcoded limit on temporary file names.
2617 (exiterr, perror_fatal, main): When exiting because of a signal,
2618 exit with that signal's status.
2619 (lf_refill, main, skip_white, edit, interact): Check for signal.
2620 (ignore_SIGINT): Renamed from `ignore_signals'.
2621 (NUM_SIGS, initial_handler): New macros.
2622 (initial_action, signal_received, sigs_trapped): New vars.
2623 (catchsig, trapsigs): Use sigaction if possible, since this closes the
2624 windows of vulnerability that `signal' has. Use RETSIGTYPE not void.
2625 When a signal comes in, just set a global variable; this is safer.
2626 (checksigs, untrapsig): New functions.
2627 (edit): Pacify `gcc -Wall' with a useless assignment.
2628 Respond to each empty line with help, not to every other empty line.
2629 (private_tempnam): Remove hardcoded limit on temporary file name length.
2630 Don't assume sizeof (pid_t) <= sizeof (int).
2632 * system.h: (S_IXOTH, S_IXGRP, S_IXUSR,
2633 SEEK_SET, SEEK_CUR,
2634 STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO):
2635 New macros, if system doesn't define them.
2636 (volatile): Don't define if already defined.
2637 (PARAMS): New macro.
2638 (VOID): Move here from diff.h.
2640 * util.c (struct msg, msg_chain, msg_chain_end): Moved here from diff.h.
2641 (message5): New function.
2642 (pr_pid): New var.
2643 (begin_output): Allocate `name' more precisely.
2644 Put child pid into pr_pid, so that we can wait for it later.
2645 Don't check execl's return value, since any return must be an error.
2646 (finish_output): Detect and report output errors.
2647 Use waitpid if available. Check pr exit status.
2648 (line_cmp): Use locale's definition of white space
2649 instead of using one hardwired defn for -b and another for -w.
2650 (analyze_cmp): Avoid double negation with `! nontrivial'.
2651 Pacify `gcc -Wall' be rewriting for-loop into do-while-loop.
2652 (dir_file_pathname): New function.
2654 * version.c (version_string): Now char[], not char*.
2656 Thu Jul 29 20:44:30 1993 David J. MacKenzie (djm@wookumz.gnu.ai.mit.edu)
2658 * Makefile.in (config.status): Run config.status --recheck, not
2659 configure, to get the right args passed.
2661 Thu Jul 22 10:46:30 1993 Paul Eggert (eggert@twinsun.com)
2663 * Makefile.in (dist): Replace `if [ ! TEST ]; then ACTION; fi'
2664 with `[ TEST ] || ACTION || exit' so that the containing for-loop exits
2665 with proper status for `make'.
2667 Thu Jul 8 19:47:22 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu)
2669 * Makefile.in (installdirs): New target.
2670 (install): Use it.
2671 (Makefile, config.status, configure): New targets.
2673 Sat Jun 5 23:10:40 1993 Paul Eggert (eggert@twinsun.com)
2675 * Makefile.in (dist): Switch from .z to .gz.
2677 Wed May 26 17:16:02 1993 Paul Eggert (eggert@twinsun.com)
2679 * diff.c (main): Cast args to compare_files, for traditional C.
2680 * side.c (print_sdiff_common_lines, print_sdiff_hunk): Likewise.
2681 * analyze.c, diff3.c, sdiff.c, util.c: Don't assume NULL is defined
2682 properly.
2684 Tue May 25 14:54:05 1993 Paul Eggert (eggert@twinsun.com)
2686 * analyze.c (diff_2_files): With -q, do not report that files differ
2687 if all their differences are ignored.
2688 (briefly_report): New function.
2689 * diff.h (ignore_some_changes): New variable.
2690 * diff.c (compare_files): Don't use the file size shortcut if
2691 ignore_some_changes is nonzero, since the file size may differ
2692 merely due to ignored changes.
2693 (main): Set ignore_some_changes if we might ignore some changes.
2694 Remove unsystematic assignment of 0 to static vars.
2695 * io.c (read_files): New argument PRETEND_BINARY says whether to
2696 pretend the files are binary.
2698 * diff3.c (tab_align_flag): New variable, for new -T option.
2699 (main, usage, output_diff3): Add support for -T.
2701 Sun May 23 15:25:29 1993 Richard Stallman (rms@mole.gnu.ai.mit.edu)
2703 * dir.c (dir_sort): Always init `data' to avoid GCC warning.
2705 Sat May 22 15:35:02 1993 Paul Eggert (eggert@twinsun.com)
2707 * Makefile.in (dist): Change name of package from diff to diffutils.
2708 Don't bother to build .Z dist; .z suffices.
2710 Fri May 21 16:35:22 1993 Paul Eggert (eggert@twinsun.com)
2712 * diff.c: Include "system.h" to get memchr declaration.
2713 * system.h (memchr): Declare if !HAVE_MEMCHR, not if
2714 !HAVE_MEMCHR && !STDC_HEADERS.
2716 Wed May 19 17:43:55 1993 Paul Eggert (eggert@twinsun.com)
2718 * Version 2.3 released.
2720 Fri Apr 23 17:18:44 1993 Paul Eggert (eggert@twinsun.com)
2722 * io.c (find_identical_ends): Do not discard the last HORIZON_LINES
2723 lines of the prefix, or the first HORIZON_LINES lines of the suffix.
2724 * diff.c (main, longopts, usage): Add --horizon-lines option.
2725 * diff3.c (main, process_diff, read_diff): Invoke second diff
2726 with --horizon-lines determined by the first diff.
2727 * diff.h, diff3.c (horizon_lines): New variable.
2729 Mon Mar 22 16:16:00 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
2731 * system.h [HAVE_STRING_H || STDC_HEADERS] (bcopy, bcmp, bzero):
2732 Don't define if already defined.
2734 Fri Mar 5 00:20:16 1993 Richard Stallman (rms@mole.gnu.ai.mit.edu)
2736 * diff.c (main): Use NULL in arg to compare_files.
2738 Thu Feb 25 15:26:01 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
2740 * system.h: Declare memchr #if !HAVE_MEMCHR && !STDC_HEADERS,
2741 not #if !HAVE_MEMCHR || !STDC_HEADERS.
2743 Mon Feb 22 15:04:46 1993 Richard Stallman (rms@geech.gnu.ai.mit.edu)
2745 * io.c (find_identical_ends): Move complicated arg outside GUESS_LINES.
2747 Mon Feb 22 12:56:12 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
2749 * Makefile.in (.c.o): Add -I$(srcdir); put $(CFLAGS) last before $<.
2751 Sat Feb 20 19:18:56 1993 Richard Stallman (rms@mole.gnu.ai.mit.edu)
2753 * io.c (binary_file_p): Return zero if file size is zero.
2755 Fri Feb 19 17:31:32 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
2757 * Version 2.2 released.
2759 * system.h [HAVE_STRING_H || STDC_HEADERS] (index, rindex): Don't
2760 define if already defined.
2762 Wed Feb 17 17:08:00 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
2764 * Makefile.in (srcs): Remove limits.h.
2766 Thu Feb 11 03:36:00 1993 Richard Stallman (rms@mole.gnu.ai.mit.edu)
2768 * diff3.c (xmalloc): No longer static.
2770 * sdiff.c (edit): Allocate buf dynamically.
2772 * dir.c (dir_sort): Handle VOID_CLOSEDIR.
2774 Wed Feb 10 00:15:54 1993 Richard Stallman (rms@mole.gnu.ai.mit.edu)
2776 * limits.h: File deleted (should never have been there).
2778 Tue Feb 9 03:53:22 1993 Richard Stallman (rms@mole.gnu.ai.mit.edu)
2780 * Makefile.in (.c.o, diff3.o, sdiff.o): Put $(CFLAGS) last.
2782 Wed Feb 3 15:42:10 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu)
2784 * system.h: Don't #define const; let configure do it.
2786 Mon Feb 1 02:13:23 1993 Paul Eggert (eggert@hal.gnu.ai.mit.edu)
2788 * Version 2.1 released.
2790 * Makefile.in (dist): Survive ln failures. Create .tar.z
2791 (gzipped tar) file as well as .tar.Z (compressed tar) file.
2793 Fri Jan 8 22:31:41 1993 Paul Eggert (eggert@twinsun.com)
2795 * side.c (print_half_line): When the input position falls
2796 outside the column, do not output a tab even if the output
2797 position still falls within the column.
2799 Mon Dec 21 13:54:36 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu)
2801 * Makefile.in (.c.o): Add -I.
2803 Fri Dec 18 14:08:20 1992 Paul Eggert (eggert@twinsun.com)
2805 * configure.in: Add HAVE_FCNTL_H, since system.h uses it.
2807 Tue Nov 24 10:06:48 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu)
2809 * Makefile.in: Note change from USG to HAVE_STRING_H.
2811 Mon Nov 23 18:44:00 1992 Paul Eggert (eggert@twinsun.com)
2813 * io.c (find_and_hash_each_line): When running out of lines,
2814 double the number of allocated lines, instead of just doubling
2815 that number minus the prefix lines. This is more likely to
2816 avoid the need for further memory allocation.
2818 Wed Nov 18 20:40:28 1992 Paul Eggert (eggert@twinsun.com)
2820 * dir.c (dir_sort): Plug memory leak: space holding directory
2821 contents was not being reclaimed. Get directory size from
2822 struct file_data for initial guess at memory needed.
2823 Detect errors when reading and closing directory.
2824 (diff_dirs): Pass struct file_data to dir_sort. Finish plugging leak.
2825 * diff.c (compare_files): Pass struct file_data to diff_dirs.
2827 * io.c (find_and_hash_each_line): Don't assume alloc_lines is
2828 nonzero when allocating more lines.
2830 Thu Nov 12 16:02:18 1992 Paul Eggert (eggert@twinsun.com)
2832 * diff.c (main): Add `-U lines' as an alias for `--unified=lines'.
2834 * diff3.c (usage): Add third --label option in example.
2836 * util.c (analyze_hunk): Fix test for ignoring blank lines.
2838 * configure.in, system.h: Avoid USG; use HAVE_TIME_H etc. instead.
2840 Mon Nov 9 05:13:25 1992 Paul Eggert (eggert@twinsun.com)
2842 * diff3.c (main, usage): Add -A or --show-all.
2843 -m now defaults to -A, not -E. Allow up to three -L options.
2844 (output_diff3_edscript, output_diff3_merge):
2845 Remove spurious differences between these two functions.
2846 Output ||||||| for -A. Distinguish between conflicts and overlaps.
2847 (dotlines, undotlines): New functions that output `Ns', not `N,Ns'.
2848 (output_diff3_edscript, output_diff3_merge): Use them.
2850 * io.c (find_identical_ends): shift_boundaries needs an extra
2851 identical line at the end, not at the beginning.
2853 * sdiff.c (edit): execvp wants char **, not const char **.
2855 Mon Oct 19 04:39:32 1992 Paul Eggert (eggert@twinsun.com)
2857 * context.c (print_context_script, find_function): Context
2858 line numbers start with - file->prefix_lines, not 0.
2860 * io.c (binary_file_p): Undo last change; it was a library bug.
2862 Sun Oct 18 00:17:29 1992 Richard Stallman (rms@mole.gnu.ai.mit.edu)
2864 * io.c (binary_file_p): Consider empty file as non-binary.
2866 Mon Oct 5 05:18:46 1992 Paul Eggert (eggert@twinsun.com)
2868 * diff3.c (main, make_3way_diff, using_to_diff3_block): Don't
2869 report bogus differences (for one of -mexEX3) just because the
2870 file0-file1 diffs don't line up with the file0-file2 diffs.
2871 (This is entirely possible since we don't use diff's -n
2872 option.) Always compare file1 to file2, so that diff3 sees
2873 those changes directly. Typically, file2 is now the common
2874 file, not file0.
2875 (output_diff3_merge): The input file is file 0, not the common file.
2877 (FC, FO): New macros; they replace FILE1, FILE0 for two-way diffs,
2878 to distinguish them from three-way diffs.
2880 * diff3.c (using_to_diff3_block): Fold repeated code into loops.
2882 * diff3.c (make_3way_diff, process_diff): Have the *_end
2883 variable point to the next field to be changed, not to the last
2884 object allocated; this saves an if-then-else.
2886 * diff3.c (process_diff): Use D_NUMLINES instead of its definiens.
2888 * diff3.c: Make fns and vars static unless they must be external.
2890 Wed Sep 30 09:21:59 1992 Paul Eggert (eggert@twinsun.com)
2892 * analyze.c (diff_2_files): OUTPUT_IFDEF is now robust.
2893 * diff.h (ROBUST_OUTPUT_STYLE): Likewise.
2894 (default_line_format): Remove. All refs removed.
2896 * ifdef.c (print_ifdef_lines): Add %L. Optimize %l\n even if user
2897 specified it, as opposed to its being the default.
2899 Tue Sep 29 19:01:28 1992 Paul Eggert (eggert@twinsun.com)
2901 * diff.c (longopts, main): --{old,new,unchanged,changed}--group-format
2902 are new options, so that -D is no longer overloaded. Set
2903 no_diff_means_no_output if --unchanged-{line,group}-format allows it.
2904 * diff.h (enum line_class): New type.
2905 (group_format, line_format): Use it to regularize option flags.
2906 All refs changed.
2908 * ifdef.c (format_ifdef, print_ifdef_lines): %n is no longer a format.
2910 Mon Sep 28 04:51:42 1992 Paul Eggert (eggert@twinsun.com)
2912 * diff.c (main, usage): Replace --line-prefix with the more general
2913 --{old,new,unchanged}-line-format options.
2914 * ifdef.c (format_ifdef, print_ifdef_lines): Likewise.
2915 * diff.h (line_format): Renamed from line_prefix. All refs changed.
2916 * diff.h, ifdef.c (default_line_format): New variable.
2917 * util.c (output_1_line): New function.
2918 (print_1_line): Use it.
2920 * ifdef.c: (format_ifdef, print_ifdef_lines): Add %0 format.
2922 Sun Sep 27 05:38:13 1992 Paul Eggert (eggert@twinsun.com)
2924 * diff.c (main): Add -E or --line-prefix option. Add -D'=xxx'
2925 for common lines. Change default -D< format from copy of -D>
2926 format to to -D<%<; similarly for default -D> format.
2927 * diff.h (common_format, line_prefix): New variables.
2928 * ifdef.c (format_ifdef): New function.
2929 (print_ifdef_script, print_ifdef_hunk, print_ifdef_lines):
2930 Use it for -D'=xxx', -E.
2932 * context.c (find_hunk): Glue together two non-ignorable changes that
2933 are exactly CONTEXT * 2 lines apart. This shortens output, removes
2934 a behavioral discontinuity at CONTEXT = 0, and is more compatible
2935 with traditional diff.
2937 * io.c (find_identical_ends): Slurp stdin at most once.
2939 * util.c (print_line_line): line_flag is const char *.
2941 Thu Sep 24 15:18:07 1992 Paul Eggert (eggert@twinsun.com)
2943 * ifdef.c (print_ifdef_lines): New function, which fwrites a sequence
2944 of lines all at once for speed.
2945 (print_ifdef_script, print_ifdef_hunk): Use it.
2947 Thu Sep 24 05:54:14 1992 Paul Eggert (eggert@twinsun.com)
2949 * diff.c (main): Support new -D options for if-then-else formats.
2950 (specify_format): New function.
2951 * diff.h (ifndef_format, ifdef_format, ifnelse_format): New variables.
2952 * ifdef.c (print_ifdef_hunk): Use the new variables instead of
2953 a hardwired format.
2955 * side.c (print_1sdiff_line): Represent incomplete lines on output.
2956 (print_sdiff_script): Likewise. Don't print 'q' at end,
2957 since that doesn't work with incomplete lines.
2958 * sdiff.c (interact): Don't assume diff output ends with 'q' line.
2959 * diff.h (ROBUST_OUTPUT_STYLE): OUTPUT_SDIFF is now robust.
2961 * sdiff.c (lf_copy, lf_snarf): Use memchr instead of index,
2962 to avoid dumping core when files contain null characters.
2963 (memchr): New function (if memchr is missing).
2965 * io.c (sip): New arg SKIP_TEST to skip test for binary file.
2966 (read_files): Don't bother testing second file if first is binary.
2968 Thu Sep 17 21:17:49 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
2970 * system.h [!USG && !_POSIX_VERSION]: Protect from conflicting
2971 prototype for wait in sys/wait.h.
2973 Wed Sep 16 12:32:18 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
2975 * Makefile.in: Include binprefix in -DDIFF_PROGRAM.
2977 Tue Sep 15 14:27:25 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
2979 * Version 2.0.
2981 Sat Sep 12 01:31:19 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
2983 * util.c, diff.h, system.h [!HAVE_MEMCHR]: Don't use void *
2984 and const when declaring memchr replacement. Declare memchr
2985 if !STDC_HEADERS && !USG.
2987 Thu Sep 10 15:17:32 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
2989 * Makefile.in (uninstall): New target.
2991 * diff.c (excluded_filename): Use fnmatch, not wildmat.
2992 (usage): Document -x, -X, --exclude, --exclude-from.
2993 Makefile.in: Use fnmatch.c, not wildmat.c.
2995 Sun Sep 6 23:46:25 1992 Paul Eggert (eggert@twinsun.com)
2997 * configure.in: Add HAVE_MEMCHR.
2998 * diff.h, util.c: Use it instead of MEMCHR_MISSING.
3000 Sun Sep 6 07:25:49 1992 Paul Eggert (eggert@twinsun.com)
3002 * diff.h: (struct line_def): Replace this 3-word struct with char *.
3003 This uses less memory, particularly for large files with short lines.
3004 (struct file_data): New member linbuf_base counts number of lines
3005 in common prefix that are not recorded in linbuf;
3006 this uses less memory if files are identical or differ only at end.
3007 New member buffered_lines counts possibly differing lines.
3008 New member valid_lines counts valid data.
3009 New member alloc_lines - linbuf_base replaces old linbufsize.
3010 linbuf[0] now always points at first differing line.
3011 Remove unused members ltran, suffix_lines.
3012 Add const where appropriate.
3013 (Is_space): New macro, for consistent definition of `white space'.
3014 (excluded_filename, memchr, sip, slurp): New declarations.
3015 * ed.c (print_ed_hunk): Adjust to diff.h's struct changes.
3016 * context.c (pr_context_hunk): Likewise.
3017 * ifdef.c (print_ifdef_script): Likewise.
3018 * side.c (print_sdiff_script, print_half_line): Likewise.
3019 * util.c (analyze_hunk, line_cmp, print_1_line): Likewise.
3021 * analyze.c (shift_boundaries): Remove unneeded variable `end' and
3022 unnecessary comparisons of `preceding' and `other_preceding' against 0.
3023 (diff_2_files): When comparing files byte-by-byte for equality,
3024 don't slurp them all in at once; just compare them a buffer at a time.
3025 This can win big if they differ early on.
3026 Move some code to compare_files to enable this change.
3027 Use only one buffer for stdin with `diff - -'.
3028 (discard_confusing_lines, diff_2_files): Coalesce malloc/free calls.
3029 (build_script): Remove obsolete OUTPUT_RCS code.
3031 * diff.c (add_exclude, add_exclude_file, excluded_filename): New fns.
3032 (main): Use them for the new --exclude and --exclude-from options.
3033 (compare_files): Don't open a file unless it must be read.
3034 Treat `diff file file' and `diff file dir' similarly.
3035 Move some code here from diff_2_files to enable this.
3036 Simplify file vs dir warning.
3038 * dir.c (dir_sort): Support new --exclude* options.
3040 * io.c (struct equivclass): Put hash code and line length here instead
3041 of struct line_def, so that they can be shared.
3042 (find_and_hash_each_line): Compute equivalence class as we go,
3043 instead of doing it in a separate pass; this thrashes memory less.
3044 Make buckets realloc-able, since we can't preallocate them.
3045 Record one more line start than there are lines, so that we can compute
3046 any line's length by subtracting its start from the next line's,
3047 instead of storing the length explicitly. This saves memory.
3048 Move prefix-handling code to find_identical_ends;
3049 this wins with large prefixes.
3050 Use Is_space, not is_space, for consistent treatment of white space.
3051 (prepare_text_end): New function.
3052 (find_identical_ends): Move slurping here, so it's only done when
3053 needed. Work even if the buffers are the same (because of `diff - -').
3054 Compare prefixes a word at a time for speed.
3055 (find_equiv_class): Delete; now done by find_and_hash_each_line.
3056 (read_files): Don't slurp unless needed.
3057 find_equiv_class's work is now folded into find_and_hash_each_line.
3058 Don't copy stdin buffer if `diff - -'.
3059 Check for running out of primes.
3060 (sip, slurp): Split first part of `slurp' into another function `sip'.
3061 `sip' sets things up and perhaps reads the first ST_BLKSIZE buffer to
3062 see whether the file is binary; `slurp' now just finishes the job.
3063 This lets diff_2_files compare binary files lazily.
3064 Allocate a one-word sentinel to allow word-at-a-time prefix comparison.
3065 Count prefix lines only if needed, only count the first file's prefix.
3066 Don't bother to count suffix lines; it's never needed.
3067 Set up linbuf[0] to point at first differing line.
3068 (binary_file_p): Change test for binary files:
3069 if it has a null byte in its first buffer, it's binary.
3070 (primes): Add more primes.
3072 * util.c (line_cmp): Use bcmp for speed.
3073 Use Is_space, not is_space, for consistent treatment of white space.
3074 (translate_line_number): Internal line numbers now count from 0
3075 starting after the prefix.
3076 (memchr): New function (if memchr is missing).
3078 * Makefile.in: Document HAVE_ST_BLKSIZE. Link with wildmat.o.
3079 * system.h (STAT_BLOCKSIZE): New macro based on HAVE_ST_BLKSIZE.
3080 * configure.in: Add AC_ST_BLKSIZE.
3081 * wildmat.c: New file.
3083 Fri Sep 4 01:28:51 1992 Richard Stallman (rms@mole.gnu.ai.mit.edu)
3085 * sdiff.c (xmalloc): Renamed from ck_malloc. Callers changed.
3087 Thu Sep 3 15:28:59 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
3089 * diff.h: Don't declare free, index, rindex.
3091 Tue Aug 11 22:18:06 1992 John Gilmore (gnu at cygnus.com)
3093 * io.c (binary_file_p): Use heuristic to avoid declaring info
3094 files as binary files. Allow about 1.5% non-printing
3095 characters (in info's case, ^_).
3097 Tue Jul 7 01:09:26 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
3099 * diff.h: Replace function_regexp and ignore_regexp with lists
3100 of compiled regexps.
3101 * analyze.c, context.c, util.c: Test whether the lists, not
3102 the old variables, are empty.
3103 * util.c (analyze_hunk), context.c (find_function): Compare
3104 lines with the lists of regexps.
3105 * diff.c (add_regexp): New function.
3106 (main): Use it.
3108 * diff3: Add -v --version option.
3109 * Makefile.in: Link with version.o.
3111 * system.h: New file.
3112 * diff.h, cmp.c, diff3.c, sdiff.c: Use it.
3114 * diff.h, diff3.c: Include string.h or strings.h, as appropriate.
3115 Declare malloc and realloc.
3117 * diff3.c (perror_with_exit): Include program name in message.
3119 * diff3.c: Lowercase error messages for GNU standards.
3121 * sdiff.c [USG || STDC_HEADERS]: Define bcopy in terms of memcpy.
3123 * sdiff.c: Use the version number from version.c.
3124 * Makefile.in: Link with version.o.
3126 * cmp.c error.c xmalloc.c: New files from textutils.
3127 * Makefile.in: Add rules for them.
3129 * diff.c (longopts): --unidirectional-new-file is like -P, not -N.
3130 Rename --file-label to --label (leave old name, but undocumented).
3132 * sdiff.c, diff.c (usage): Condense messages and fix some errors.
3134 * diff3.c (main, usage): Add long-named options.
3136 Fri Jul 3 14:31:18 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu)
3138 * diff.h, diff3.c, sdiff.c: Change FOO_MISSING macros to HAVE_FOO.
3140 Thu Jun 25 16:59:47 1992 David J. MacKenzie (djm@apple-gunkies.gnu.ai.mit.edu)
3142 * diff.c: --reversed-ed -> --forward-ed.
3144 Wed Feb 26 12:17:32 1992 Paul Eggert (eggert@yata.uucp)
3146 * analyze.c, diff.c, diff.h, io.c: For -y, compare even if same file.
3148 Fri Feb 14 22:46:38 1992 Richard Stallman (rms@mole.gnu.ai.mit.edu)
3150 * io.c, diff3.c, analyze.c: Add extra parentheses.
3152 Sun Feb 9 00:22:42 1992 Richard Stallman (rms@mole.gnu.ai.mit.edu)
3154 * diff.h (unidirectional_new_file_flag): New variable.
3155 * diff.c (main): Set that for -P.
3156 (compare_files): Support -P, somewhat like -N.
3157 (longopts): Support long name for -P.
3159 Sat Jan 4 20:10:34 1992 Paul Eggert (eggert at yata.uucp)
3161 * Makefile.in: Distribute diff.info-* too.
3163 * README, sdiff.c: version number now matches version.c.
3165 * configure: Fix and document vfork test.
3167 * ifdef.c: Don't dump core if `diff -Dx f f'.
3169 Mon Dec 23 23:36:08 1991 David J. MacKenzie (djm at wookumz.gnu.ai.mit.edu)
3171 * diff.h, diff3.c, sdiff.c: Change POSIX ifdefs to
3172 HAVE_UNISTD_H and _POSIX_VERSION.
3174 Wed Dec 18 17:00:31 1991 David J. MacKenzie (djm at wookumz.gnu.ai.mit.edu)
3176 * Makefile.in (srcs): Add sdiff.c.
3177 (tapefiles): Add diff.texi and diff.info.
3179 * diff.h, diff3.c, sdiff.c: Use HAVE_VFORK_H instead of
3180 VFORK_HEADER and VFORK_WORKS.
3182 Tue Dec 17 00:02:59 1991 Paul Eggert (eggert at yata.uucp)
3184 * Makefile.in (all): Add diff.info, sdiff.
3186 * configure, diff.c, sdiff.c:
3187 Prefix long options with `--', not `+'.
3188 * diff.c: Regularize option names.
3190 * configure: Fix check for vfork.
3191 * configure, diff.c, diff.h, diff3.c, sdiff.c:
3192 Use Posix definitions when possible.
3194 * context.c: Align context with tab if -T is given. Tune.
3195 * diff.c, diff.h, side.c: Calculate column widths so that tabs line up.
3196 * io.c: Add distinction between white space and printing chars.
3197 * side.c: Don't expand tabs unless -t is given.
3198 * side.c, util.c: Tab expansion now knows about '\b', '\f', '\r', '\v'.
3199 * util.c: -w skips all white space. Remove lint. Tune.
3201 * sdiff.c: Support many more diff options, e.g. `-', `sdiff file dir'.
3202 Ignore interrupts while the subsidiary editor is in control.
3203 Clean up temporary file and kill subsidiary diff if interrupted.
3204 Ensure subsidiary diff doesn't ignore SIGPIPE.
3205 Don't get confused while waiting for two subprocesses.
3206 Don't let buffers overflow. Check for I/O errors.
3207 Convert to GNU style. Tune.
3209 * sdiff.c, util.c: Don't lose errno.
3210 Don't confuse sdiff with messages like `Binary files differ'.
3211 * sdiff.c, side.c: Don't assume that common lines are identical.
3212 Simplify --sdiff-merge-assist format.
3214 Mon Sep 16 16:42:01 1991 Tom Lord (lord at churchy.gnu.ai.mit.edu)
3216 * Makefile.in, sdiff.c: introduced sdiff front end to diff.
3218 * Makefile.in, analyze.c, diff.c, diff.h, io.c, side.c: Added
3219 sdiff-style output format to diff.
3221 Mon Aug 26 16:44:55 1991 David J. MacKenzie (djm at pogo.gnu.ai.mit.edu)
3223 * Makefile.in, configure: Only put $< in Makefile if using VPATH,
3224 because older makes don't understand it.
3226 Fri Aug 2 12:22:30 1991 David J. MacKenzie (djm at apple-gunkies)
3228 * configure: Create config.status. Remove it and Makefile if
3229 interrupted while creating them.
3231 Thu Aug 1 22:24:31 1991 David J. MacKenzie (djm at apple-gunkies)
3233 * configure: Check for +srcdir etc. arg and look for
3234 Makefile.in in that directory. Set VPATH if srcdir is not `.'.
3235 * Makefile.in: Get rid of $(archpfx).
3237 Tue Jul 30 21:28:44 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu)
3239 * Makefile.in (prefix): Renamed from DESTDIR.
3241 Wed Jul 24 23:08:56 1991 David J. MacKenzie (djm at wookumz.gnu.ai.mit.edu)
3243 * diff.h, diff3.c: Rearrange ifdefs to use POSIX,
3244 STDC_HEADERS, VFORK_MISSING, DIRENT. This way it works on
3245 more systems that aren't pure USG or BSD.
3246 Don't not define const if __GNUC__ is defined -- that would
3247 break with -traditional.
3248 * configure: Check for those features.
3250 Wed Jul 10 01:39:23 1991 David J. MacKenzie (djm at wookumz.gnu.ai.mit.edu)
3252 * configure, Makefile.in: $(INSTALLPROG) -> $(INSTALL).
3254 Sat Jul 6 16:39:04 1991 David J. MacKenzie (djm at geech.gnu.ai.mit.edu)
3256 * Replace Makefile with configure and Makefile.in.
3257 Update README with current compilation instructions.
3259 Sat Jul 6 14:03:29 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu)
3261 * util.c (setup_output): Just save the args for later use.
3262 (begin_output): Do the real work, with the values that were saved.
3263 It's safe to call begin_output more than once.
3264 Print the special headers for context format here.
3265 * analyze.c (diff_2_files): Don't print special headers here.
3266 * context.c (pr_context_hunk, pr_unidiff_hunk): Call begin_output.
3267 * ed.c (print_ed_hunk, print_forward_ed_hunk, print_rcs_hunk):
3268 * normal.c (print_normal_hunk): Likewise.
3269 * ifdef.c (print_ifdef_hunk): Likewise.
3270 * util.c (finish_output): Don't die if begin_output was not called.
3272 Thu Jun 20 23:10:01 1991 David J. MacKenzie (djm at geech.gnu.ai.mit.edu)
3274 * Makefile: Add TAGS, distclean, and realclean targets.
3275 Set SHELL.
3277 Tue Apr 30 13:54:36 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu)
3279 * diff.h (TRUE, FALSE): Undefine these before defining.
3281 Thu Mar 14 18:27:27 1991 Richard Stallman (rms@mole.ai.mit.edu)
3283 * Makefile (objs): Include $(ALLOCA).
3285 Sat Mar 9 22:34:03 1991 Richard Stallman (rms at mole.ai.mit.edu)
3287 * diff.h: Include regex.h.
3289 Thu Feb 28 18:59:53 1991 Richard Stallman (rms at mole.ai.mit.edu)
3291 * Makefile (diff3): Link with GNU getopt.
3293 Sat Feb 23 12:49:43 1991 Richard Stallman (rms at mole.ai.mit.edu)
3295 * io.c (find_equiv_class): Make hash code unsigned before mod.
3297 * diff.h (files): Add EXTERN.
3299 Sun Jan 13 21:33:01 1991 Richard Stallman (rms at mole.ai.mit.edu)
3301 * diff.c: +print option renamed +paginate. Remove +all-text.
3303 Mon Jan 7 06:18:01 1991 David J. MacKenzie (djm at geech.ai.mit.edu)
3305 * Makefile (dist): New target, replacing diff.tar and
3306 diff.tar.Z, to encode version number in distribution directory
3307 and tar file names.
3309 Sun Jan 6 18:42:23 1991 Michael I Bushnell (mib at geech.ai.mit.edu)
3311 * Version 1.15 released.
3313 * version.c: Updated from 1.15 alpha to 1.15
3315 * context.c (print_context_number_range,
3316 print_unidiff_number_range): Don't print N,M when N=M, print
3317 just N instead.
3319 * README: Updated for version 1.15.
3320 Makefile: Updated for version 1.15.
3322 * diff3.c (main): Don't get confused if one of the arguments
3323 is a directory.
3325 * diff.c (compare_files): Don't get confused if comparing
3326 standard input to a directory; print error instead.
3328 * analyze.c (diff_2_files), context.c (print_context_header,
3329 print_context_script), diff.c (main), diff.h (enum
3330 output_style): Tread unidiff as an output style in its own
3331 right. This also generates an error when both -u and -c are
3332 given.
3334 * diff.c (main): Better error messages when regexps are bad.
3336 * diff.c (compare_files): Don't assume stdin is opened.
3338 * diff3.c (read_diff): Don't assume things about the order of
3339 descriptor assignment and closes.
3341 * util.c (setup_output): Don't assume things about the order
3342 of descriptor assignment and closes.
3344 * diff.c (compare_files): Set a flag so that closes don't
3345 happen more than once.
3347 * diff.c (main): Don't just flush stdout, do a close. That
3348 way on broken systems we can still get errors.
3350 Mon Dec 24 16:24:17 1990 Richard Stallman (rms at mole.ai.mit.edu)
3352 * diff.c (usage): Use = for args of long options.
3354 Mon Dec 17 18:19:20 1990 Michael I Bushnell (mib at geech.ai.mit.edu)
3356 * context.c (print_context_label): Labels were interchanged badly.
3358 * context.c (pr_unidiff_hunk): Changes to deal with files
3359 ending in incomplete lines.
3360 * util.c (print_1_line): Other half of the changes.
3362 Mon Dec 3 14:23:55 1990 Richard Stallman (rms at mole.ai.mit.edu)
3364 * diff.c (longopts, usage): unidiff => unified.
3366 Wed Nov 7 17:13:08 1990 Richard Stallman (rms at mole.ai.mit.edu)
3368 * analyze.c (diff_2_files): No warnings about newlines for -D.
3370 * diff.c (pr_unidiff_hunk): Remove ref to output_patch_flag.
3372 Tue Oct 23 23:19:18 1990 Richard Stallman (rms at mole.ai.mit.edu)
3374 * diff.c (compare_files): For -D, compare even args are same file.
3375 * analyze.c (diff_2_files): Likewise.
3376 Also, output even if files have no differences.
3378 * analyze.c (diff_2_files): Print missing newline messages last.
3379 Return 2 if a newline is missing.
3380 Print them even if files end with identical text.
3382 Mon Oct 22 19:40:09 1990 Richard Stallman (rms at mole.ai.mit.edu)
3384 * diff.c (usage): Return 2.
3386 Wed Oct 10 20:54:04 1990 Richard Stallman (rms at mole.ai.mit.edu)
3388 * diff.c (longopts): Add +new-files.
3390 Sun Sep 23 22:49:29 1990 Richard Stallman (rms at mole.ai.mit.edu)
3392 * context.c (print_context_script): Handle unidiff_flag.
3393 (print_context_header): Likewise.
3394 (print_unidiff_number_range, pr_unidiff_hunk): New functions.
3395 * diff.c (longopts): Add element for +unidiff.
3396 (main): Handle +unidiff and -u.
3397 (usage): Mention them.
3399 Wed Sep 5 16:33:22 1990 Richard Stallman (rms at mole.ai.mit.edu)
3401 * io.c (find_and_hash_each_line): Deal with missing final newline
3402 after buffering necessary context lines.
3404 Sat Sep 1 16:32:32 1990 Richard Stallman (rms at mole.ai.mit.edu)
3406 * io.c (find_identical_ends): ROBUST_OUTPUT_FORMAT test was backward.
3408 Thu Aug 23 17:17:20 1990 Richard Stallman (rms at mole.ai.mit.edu)
3410 * diff3.c (WIFEXITED): Undef it if WEXITSTATUS is not defined.
3411 * context.c (find_function): Don't try to return values.
3413 Wed Aug 22 11:54:39 1990 Richard Stallman (rms at mole.ai.mit.edu)
3415 * diff.h (O_RDONLY): Define if not defined.
3417 Tue Aug 21 13:49:26 1990 Richard Stallman (rms at mole.ai.mit.edu)
3419 * Handle -L option.
3420 * context.c (print_context_label): New function.
3421 (print_context_header): Use that.
3422 * diff.c (main): Recognize the option.
3423 (usage): Updated.
3424 * diff.h (file_label): New variable.
3425 * diff3.c (main): Recognize -L instead of -t.
3427 * diff3.c (main): Support -m without other option.
3429 * diff3.c (WEXITSTATUS, WIFEXITED): Define whenever not defined.
3431 * diff3.c (bcopy, index, rindex): Delete definitions; not used.
3432 (D_LINENUM, D_LINELEN): Likewise.
3433 (struct diff_block): lengths includes newlines.
3434 (struct diff3_block): Likewise.
3435 (always_text, merge): New variables.
3436 (read_diff): Return address of end, not size read. Calls changed.
3437 Pass -a to diff if given to diff3.
3438 current_chunk_size now an int. Detect error in `pipe'.
3439 Check for incomplete line of output here.
3440 (scan_diff_line): Don't make scan_ptr + 2 before knowing it is valid.
3441 No need to check validity of diff output here.
3442 Include newline in length of line.
3443 (main): Compute rev_mapping here. Handle -a and -m.
3444 Error message if excess -t operands. Error for incompatible options.
3445 Error if `-' given more than once.
3446 Fix error storing in tag_strings.
3447 (output_diff3): REV_MAPPING is now an arg. Call changed.
3448 Change syntax of "missing newline" message.
3449 Expect length of line to include newline.
3450 (output_diff3_edscript): Return just 0 or 1.
3451 REV_MAPPING is now an arg. Call changed.
3452 (output_diff3_merge): New function.
3453 (process_diff): Better error message for bad diff format.
3454 (fatal, perror_with_exit): Return status 2.
3456 * analyze.c (diff_2_files): Report missing newline in either
3457 or both files, if not robust output style.
3459 * util.c (setup_output): Detect error from pipe.
3460 No need to close stdin.
3462 * util.c (print_1_line): Change format of missing-newline msg.
3463 Change if statements to switch.
3465 * io.c (slurp): Don't mention differences in final newline if -B.
3467 * io.c (binary_file_p): Use ISO char set as criterion, not ASCII.
3469 * io.c (find_identical_ends): Increase value of BEG0 by 1.
3470 Other changes in backwards scan to avoid decrementing pointers
3471 before start of array, and set LINES properly.
3473 * diff.h (ROBUST_OUTPUT_STYLE): New macro.
3474 * io.c (find_identical_ends, find_and_hash_each_line): Use that macro.
3476 * diff.h (dup2): Don't define if XENIX.
3478 * diff.c (main): Check for write error at end.
3480 * context.c (find_function): Don't return a value.
3481 Use argument FILE rather than global files.
3483 * analyze.c: Add external function declarations.
3484 * analyze.c (build_script): Turn off explicit check for final newline.
3486 * analyze.c (discard_confusing_lines): Make integers unsigned.
3488 Tue Jul 31 21:37:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3490 * io.c (find_and_hash_each_line): Correct the criterion
3491 for leaving out the newline from the end of the line.
3493 Tue May 29 21:28:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3495 * dir.c (diff_dirs): Free things only if nonzero.
3497 Mon Apr 16 18:31:05 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3499 * diff.h (NDIR_IN_SYS): New macro controls location of ndir.h.
3501 * diff3.c (xmalloc, xrealloc): Don't die if size == 0 returns 0.
3503 Sun Mar 25 15:58:42 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3505 * analyze.c (discard_confusing_lines):
3506 `many' wasn't being used; use it.
3507 Canceling provisionals near start of run must handle already
3508 canceled provisionals.
3509 Canceling subruns of provisionals was canceling last nonprovisional.
3511 Sat Mar 24 14:02:51 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3513 * analyze.c (discard_confusing_lines):
3514 Threshold for line occurring many times scales by square root
3515 of total lines.
3516 Within each run, cancel any long subrun of provisionals.
3517 Don't update `provisional' while canceling provisionals.
3518 In big outer loop, handle provisional and nonprovisional separately.
3520 Thu Mar 22 16:35:33 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3522 * analyze.c (discard_confusing_lines):
3523 The first loops to discard provisionals from ends failed to step.
3524 In second such loops, keep discarding all consecutive provisionals.
3525 Increase threshold for stopping discarding, and also check for
3526 consecutive nondiscardables as separate threshold.
3528 Fri Mar 16 00:33:08 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3530 * diff3.c (read_diff): Pass -- as first arg to diff.
3532 * diff3.c: Include wait.h or define equivalent macros.
3533 (read_diff): Don't use stdio printing error in the inferior.
3534 Remember the pid and wait for it. Report failing status.
3535 Report failure of vfork.
3537 Sun Mar 11 17:10:32 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3539 * diff3.c (main): Accept -t options and pass to output_diff3_edscript.
3540 (usage): Mention -t.
3541 (read_diff): Use vfork.
3542 (vfork): Don't use it on Sparc.
3544 * diff.h (vfork): Don't use it on Sparc.
3546 Tue Mar 6 22:37:20 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3548 * diff3.c (dup2): Don't define on Xenix.
3550 * Makefile: Comments for Xenix.
3552 Thu Mar 1 17:19:23 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3554 * analyze.c (diff_2_files): `message' requires three args.
3556 Fri Feb 23 10:56:50 1990 David J. MacKenzie (djm at albert.ai.mit.edu)
3558 * diff.h, util.c, diff3.c: Change 'void *' to 'VOID *', with
3559 VOID defined as void if __STDC__, char if not.
3561 Sun Feb 18 20:31:58 1990 David J. MacKenzie (djm at albert.ai.mit.edu)
3563 * Makefile: Add rules for getopt.c, getopt1.c, getopt.h.
3565 * getopt.c, getopt.h, getopt1.c: New files.
3567 * main.c (main, usage): Add long options.
3569 * analyze.c (shift_boundaries): Remove unused var 'j_end'.
3571 Thu Feb 8 02:43:16 1990 Jim Kingdon (kingdon at pogo.ai.mit.edu)
3573 * GNUmakefile: include ../Makerules before Makefile.
3575 Fri Feb 2 23:21:38 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3577 * analyze.c (diff_2_files): If -B or -I, don't return 1
3578 if all changes were ignored.
3580 Wed Jan 24 20:43:57 1990 Richard Stallman (rms at albert.ai.mit.edu)
3582 * diff3.c (fatal): Output to stderr.
3584 Thu Jan 11 00:25:56 1990 David J. MacKenzie (djm at hobbes.ai.mit.edu)
3586 * diff.c (usage): Mention -v.
3588 Wed Jan 10 16:06:38 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3590 * diff3.c (output_diff3_edscript): Return number of overlaps.
3591 (main): If have overlaps, exit with status 1.
3593 Sun Dec 24 10:29:20 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3595 * io.c (find_equiv_class): Fix typo that came from changing init of B
3596 to an assignment.
3598 * version.c: New file.
3599 * diff.c (main): -v prints version number.
3601 * io.c (binary_file_p): Null char implies binary file.
3603 Fri Nov 17 23:44:55 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3605 * util.c (print_1_line): Fix off by 1 error.
3607 Thu Nov 16 13:51:10 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3609 * util.c (xcalloc): Function deleted.
3611 * io.c (slurp): Null-terminate the buffer.
3613 * io.c (read_files): Delete unused vars.
3615 * io.c (find_equiv_class): Don't index by N if too low.
3617 * dir.c (dir_sort): Delete the extra declaration of compare_names.
3619 * diff.h: Don't declare xcalloc. Declare some other functions.
3621 * analyze.c (shift_boundaries):
3622 Test for END at end of range before indexing by it.
3623 Fix misspelling of `preceding' in var names.
3625 Sat Nov 11 14:04:16 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3627 * diff3.c (using_to_diff3_block): Delete unused vars.
3628 (make_3way_diff, process_diff_control, read_diff, output_diff3): Likewise.
3630 Mon Nov 6 18:15:50 EST 1989 Jay Fenlason (hack@ai.mit.edu)
3632 * README Fix typo.
3634 Fri Nov 3 15:27:47 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3636 * diff.c (usage): Mention -D.
3638 * ifdef.c (print_ifdef_hunk): Write comments on #else and #endif.
3640 Sun Oct 29 16:41:07 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3642 * diff.c (compare_files): Don't fflush for identical files.
3644 Wed Oct 25 17:57:12 1989 Randy Smith (randy at apple-gunkies.ai.mit.edu)
3646 * diff3.c (using_to_diff3_block): When defaulting lines from
3647 FILE0, only copy up to just under the *lowest* line mentioned
3648 in the next diff.
3650 * diff3.c (fatal): Add \n to error messages.
3652 Wed Oct 25 15:05:49 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3654 * Makefile (tapefiles): Add ChangeLog.
3656 Tue Oct 3 00:51:17 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3658 * diff3.c (process_diff, create_diff3_block): Init ->next field.
3660 Fri Sep 29 08:16:45 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3662 * util.c (line_cmp): Alter end char of line 2, not line 1.
3664 Wed Sep 20 00:12:37 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3666 * Makefile (diff.tar): Expect ln to fail on some files;
3667 copy them with cp.
3669 Mon Sep 18 02:54:29 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3671 * Handle -D option:
3672 * io.c (find_and_hash_each_line): Keep all lines of 1st file.
3673 * diff.c (main): Handle -D option.
3674 (compare_files): Reject -D if files spec'd are directories.
3675 * analyze.c (diff_2_files): Handle OUTPUT_IFDEF case.
3677 Fri Sep 1 20:15:50 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3679 * diff.c (option_list): Rename arg VECTOR as OPTIONVEC.
3681 Mon Aug 28 17:58:27 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3683 * diff.c (compare_files): Clear entire inf[i].stat.
3685 Wed Aug 23 17:48:47 1989 Richard Stallman (rms at apple-gunkies.ai.mit.edu)
3687 * io.c (find_identical_ends): Sign was backward
3688 determining where to bound the scan for the suffix.
3690 Wed Aug 16 12:49:16 1989 Richard Stallman (rms at hobbes.ai.mit.edu)
3692 * analyze.c (diff_2_files): If -q, treat all files as binary.
3693 * diff.c (main): Detect -q, record in no_details_flag.
3695 Sun Jul 30 23:12:00 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3697 * diff.c (usage): New function.
3698 (main): Call it.
3700 Wed Jul 26 02:02:19 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3702 * diff.c (main): Make -C imply -c.
3704 Thu Jul 20 17:57:51 1989 Chris Hanson (cph at kleph)
3706 * io.c (find_and_hash_each_line): Bug fix in context handling,
3707 introduced by last change.
3709 Fri Jul 14 17:39:20 1989 Chris Hanson (cph at kleph)
3711 * analyze.c: To make RCS work correctly on files that don't
3712 necessarily end in newline, introduce some changes that cause
3713 diffs to be sensitive to missing final newline. Because
3714 non-RCS modes don't want to be affected by these changes, they
3715 are conditional on `output_style == OUTPUT_RCS'.
3716 (diff_2_files) [OUTPUT_RCS]: Suppress the "File X missing
3717 newline" message.
3718 (build_script) [OUTPUT_RCS]: Cause the last line to compare as
3719 different if exactly one of the files is missing its final
3720 newline.
3722 * io.c (find_and_hash_each_line): Bug fix in
3723 ignore_space_change mode. Change line's length to include the
3724 newline. For OUTPUT_RCS, decrement last line's length if
3725 there is no final newline.
3726 (find_identical_ends) [OUTPUT_RCS]: If one of the files is
3727 missing a final newline, make sure it's not included in either
3728 the prefix or suffix.
3730 * util.c (print_1_line): Change line output routine to account
3731 for line length including the newline.
3733 Tue Jun 27 02:35:28 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
3735 * Makefile: Inserted $(archpfx) where appropriate.
3737 Wed May 17 20:18:43 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3739 * diff3.c [USG]: Include fcntl.h.
3741 * diff.h [USG]: New compilation flags HAVE_NDIR, HAVE_DIRECT.
3743 Wed Apr 26 15:35:57 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3745 * dir.c (diff_dirs): Two new args, NONEX1 and NONEX2, say to pretend
3746 nonex dirs are empty.
3747 (dir_sort): New arg NONEX, likewise.
3748 * diff.c (compare_files): Pass those args.
3749 Sometimes call diff_dirs if subdir exists in just one place.
3751 Wed Apr 12 01:10:27 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3753 * io.c (find_identical_ends): Set END0 *after* last char
3754 during backward scan for suffix.
3756 Sat Apr 8 15:49:49 1989 Randall Smith (randy at apple-gunkies.ai.mit.edu)
3758 * diff3.c (using_to_diff3_block): Now find high marks in files 1
3759 and 2 through mapping off of the last difference instead of the
3760 first.
3762 * diff3.c: Many trivial changes to spelling inside comments.
3764 Fri Feb 24 12:38:03 1989 Randall Smith (randy at gluteus.ai.mit.edu)
3766 * util.c, normal.c, io.c, ed.c, dir.c, diff.h, diff.c, context.c,
3767 analyze.c, Makefile: Changed copyright header to conform with new
3768 GNU General Public license.
3769 * diff3.c: Changed copyright header to conform with new GNU
3770 General Public license.
3771 * COPYING: Made a hard link to /gp/rms/COPYING.
3773 Fri Feb 24 10:01:58 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3775 * io.c (slurp): Leave 2 chars space at end of buffer, not one.
3776 (find_identical_ends): Special case if either file is empty;
3777 don't try to make a sentinel since could crash.
3779 Wed Feb 15 14:24:48 1989 Jay Fenlason (hack at apple-gunkies.ai.mit.edu)
3781 * diff3.c (message) Re-wrote routine to avoid using alloca()
3783 Wed Feb 15 06:19:14 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3785 * io.c (find_identical_ends): Delete the variable `bytes'.
3787 Sun Feb 12 11:50:36 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3789 * io.c (slurp): ->bufsize is nominal amount we have room for;
3790 add room for sentinel when calling xmalloc or xrealloc.
3792 * io.c (find_identical_ends): Do need overrun check in finding suffix.
3794 Fri Feb 10 01:28:15 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3796 * diff.c (main): -C now takes arg to specify context length.
3797 Now -p to show C function name--Damned IEEE!
3798 Fatal error if context length spec'd twice.
3800 * ed.c (print_ed_hunk): Now special treatment only for lines containing
3801 precisely a dot and nothing else. Output `..', end the insert,
3802 substitute that one line, then resume the insert if nec.
3804 * io.c (find_and_hash_lines): When backing up over starting context,
3805 don't move past buffer-beg.
3807 * io.c (find_identical_ends): Use sentinels to make the loops faster.
3808 If files are identical, skip the 2nd loop and return quickly.
3809 (slurp): Leave 1 char extra space after each buffer.
3811 * analyze.c (diff_2_files): Mention difference in final newlines.
3813 Wed Jan 25 22:44:44 1989 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3815 * dir.c (diff_dirs): Use * when calling fcn ptr variable.
3817 Sat Dec 17 14:12:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3819 * Makefile: New vars INSTALL and LIBS used in some rules;
3820 provide default defns plus commented-put defns for sysV.
3822 Thu Nov 17 16:42:53 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3824 * dir.c (dir_sort): Open-trouble not fatal; just say # files is -1.
3825 (diff_dirs): If dir_sort does that, give up and return 2.
3827 * diff.c (compare_files): Don't open directories.
3828 Don't close them specially either.
3829 Cross-propagate inf[i].dir_p sooner.
3831 Sun Nov 13 11:19:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3833 * diff.h: Declare index, rindex.
3835 * diff.c (compare_files): If comparing foodir with b/f,
3836 use foodir/f, not foodir/b/f.
3838 * diff.c (compare_files): Don't print "are identical" msg for 2 dirs.
3839 Status now 1 if one file is a dir and the other isn't, etc.
3841 Thu Nov 3 16:30:24 1988 Randall Smith (randy at gluteus.ai.mit.edu)
3843 * Makefile: Added a define for diff3 to define DIFF_PROGRAM.
3845 * util.c: Added hack to make sure that perror was not called with
3846 a null pointer.
3848 * diff.c: Changed S_IFDIR to S_IFMT in masking type of file bits
3849 out.
3851 * diff3.c: Included USG compatibility defines.
3853 * diff.h: Moved sys/file.h into #else USG section (not needed or
3854 wanted on System V).
3856 * ed.c, analyze.c, context.c: Shortened names to 12 characters for
3857 the sake of System V (too simple not to do).
3860 Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1997, 1998, 1999,
3861 2000, 2001, 2002 Free Software Foundation, Inc.
3863 This file is part of GNU Diffutils.
3865 This program is free software; you can redistribute it and/or modify
3866 it under the terms of the GNU General Public License as published by
3867 the Free Software Foundation; either version 2, or (at your option)
3868 any later version.
3870 This program is distributed in the hope that they will be useful,
3871 but WITHOUT ANY WARRANTY; without even the implied warranty of
3872 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3873 GNU General Public License for more details.
3875 You should have received a copy of the GNU General Public License
3876 along with this program; see the file COPYING. If not, write to
3877 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
3878 Boston, MA 02111-1307, USA.