| Current Path : /proc/3/task/3/cwd/usr/share/doc/diffutils-2.8.1/ |
| Current File : //proc/3/task/3/cwd/usr/share/doc/diffutils-2.8.1/NEWS |
User-visible changes in version 2.8.1:
* Documentation fixes.
User-visible changes in version 2.8:
* cmp and diff now conform to POSIX 1003.1-2001 (IEEE Std 1003.1-2001)
if the underlying system conforms to POSIX and if the _POSIX2_VERSION
environment variable is set to 200112. Conformance removes support
for `diff -NUM', where NUM is a number. Use -C NUM or -U NUM instead.
* cmp now supports trailing operands SKIP1 and SKIP2, like BSD cmp.
* cmp -i or --ignore-initial now accepts SKIP1:SKIP2 option value.
* New cmp option: -n or --bytes.
* cmp's old -c or --print-chars option has been renamed;
use -b or --print-bytes instead.
* cmp now outputs "byte" rather than "char" outside the POSIX locale.
* cmp -l's index column width now adjusts to fit larger (or smaller) files.
* cmp -l -s and cmp -s -l are not allowed. Use cmp -s or cmp -l instead.
* diff uses ISO 8601 style time stamps for output times (e.g. "2001-11-23
16:44:36.875702460 -0800") unless in the C or POSIX locale and the
-c style is specified.
* diff's -I and -F options use the regexp syntax of grep, not of Emacs.
* diff now accepts multiple context arguments, and uses their maximum value.
* New diff and sdiff options:
-E --ignore-tab-expansion
--strip-trailing-cr
* New diff options:
--from-file=FILE, --to-file=FILE
--ignore-file-name-case
--no-ignore-file-name-case
* New diff3 and sdiff option:
--diff-program=PROGRAM
* The following diff options are still accepted, but are no longer documented.
They may be withdrawn in future releases.
-h (omit; it has no effect)
-H (use --speed-large-files instead)
-L (use --label instead)
-P (use --unidirectional-new-file instead)
--inhibit-hunk-merge (omit; it has no effect)
* Recursive diffs now sort file names according to the LC_COLLATE locale
category if possible, instead of using native byte comparison.
* Diff printf specs can now use the "0" and "'" flags.
* The new sdiff interactive command `ed' precedes each version with a header.
* On 64-bit hosts, files larger than 2 GB can be compared.
* Some internationalization support has been added, but multibyte locales
are still not completely supported yet.
* Some diagnostics have been reworded slightly for consistency.
Also, `diff -D FOO' now outputs `/* ! FOO */' instead of `/* not FOO */'.
* The `patch' part of the manual now describes `patch' version 2.5.4.
* Man pages are now distributed and installed.
* There is support for DJGPP; see the 'ms' subdirectory and the files
m4/dos.m4 and */setmode.*.
User-visible changes in version 2.7:
* New diff option: --binary (useful only on non-POSIX hosts)
* diff -b and -w now ignore line incompleteness; -B no longer does this.
* cmp -c now uses locale to decide which output characters to quote.
* Help and version messages are reorganized.
User-visible changes in version 2.6:
* New cmp, diff, diff3, sdiff option: --help
* A new heuristic for diff greatly reduces the time needed to compare
large input files that contain many differences.
* Partly as a result, GNU diff's output is not exactly the same as before.
Usually it is a bit smaller, but sometimes it is a bit larger.
User-visible changes in version 2.5:
* New cmp option: -v --version
User-visible changes in version 2.4:
* New cmp option: --ignore-initial=BYTES
* New diff3 option: -T --initial-tab
* New diff option: --line-format=FORMAT
* New diff group format specifications:
<PRINTF_SPEC>[eflmnEFLMN]
A printf spec followed by one of the following letters
causes the integer corresponding to that letter to be
printed according to the printf specification.
E.g. `%5df' prints the number of the first line in the
group in the old file using the "%5d" format.
e: line number just before the group in old file; equals f - 1
f: first line number in group in the old file
l: last line number in group in the old file
m: line number just after the group in old file; equals l + 1
n: number of lines in group in the old file; equals l - f + 1
E, F, L, M, N: likewise, for lines in the new file
%(A=B?T:E)
If A equals B then T else E. A and B are each either a decimal
constant or a single letter interpreted as above. T and E are
arbitrary format strings. This format spec is equivalent to T if
A's value equals B's; otherwise it is equivalent to E. For
example, `%(N=0?no:%dN) line%(N=1?:s)' is equivalent to `no lines'
if N (the number of lines in the group in the the new file) is 0,
to `1 line' if N is 1, and to `%dN lines' otherwise.
%c'C'
where C is a single character, stands for the character C. C may not
be a backslash or an apostrophe. E.g. %c':' stands for a colon.
%c'\O'
where O is a string of 1, 2, or 3 octal digits, stands for the
character with octal code O. E.g. %c'\0' stands for a null character.
* New diff line format specifications:
<PRINTF_SPEC>n
The line number, printed with <PRINTF_SPEC>.
E.g. `%5dn' prints the line number with a "%5d" format.
%c'C'
%c'\O'
The character C, or with octal code O, as above.
* Supported <PRINTF_SPEC>s have the same meaning as with printf, but must
match the extended regular expression %-*[0-9]*(\.[0-9]*)?[doxX].
* The format spec %0 introduced in version 2.1 has been removed, since it
is incompatible with printf specs like %02d. To represent a null char,
use %c'\0' instead.
* cmp and diff now conform to POSIX 1003.2-1992 (ISO/IEC 9945-2:1993)
if the underlying system conforms to POSIX:
- Some messages' wordings are changed in minor ways.
- ``White space'' is now whatever C's `isspace' says it is.
- When comparing directories, if `diff' finds a file that is not a regular
file or a directory, it reports the file's type instead of diffing it.
(As usual, it follows symbolic links first.)
- When signaled, sdiff exits with the signal's status, not with status 2.
* Now portable to hosts where int, long, pointer, etc. are not all the same
size.
* `cmp - -' now works like `diff - -'.
User-visible changes in version 2.3:
* New diff option: --horizon-lines=lines
User-visible changes in version 2.1:
* New diff options:
--{old,new,unchanged}-line-format='format'
--{old,new,unchanged,changed}-group-format='format'
-U
* New diff3 option:
-A --show-all
* diff3 -m now defaults to -A, not -E.
* diff3 now takes up to three -L or --label options, not just two.
If just two options are given, they refer to the first two input files,
not the first and third input files.
* sdiff and diff -y handle incomplete lines.
User-visible changes in version 2.0:
* Add sdiff and cmp programs.
* Add Texinfo documentation.
* Add configure script.
* Improve diff performance.
* New diff options:
-x --exclude
-X --exclude-from
-P --unidirectional-new-file
-W --width
-y --side-by-side
--left-column
--sdiff-merge-assist
--suppress-common-lines
* diff options renamed:
--label renamed from --file-label
--forward-ed renamed from --reversed-ed
--paginate renamed from --print
--entire-new-file renamed from --entire-new-files
--new-file renamed from --new-files
--all-text removed
* New diff3 options:
-v --version
* Add long-named equivalents for other diff3 options.
* diff options -F (--show-function-line) and -I (--ignore-matching-lines)
can now be given more than once.
Copyright (C) 1993, 1994, 1998, 2001, 2002 Free Software Foundation,
Inc.
This file is part of GNU Diffutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that they will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
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