This commit was generated by cvs2svn to compensate for changes in r11884,

which included commits to RCS files with non-trunk default branches.
This commit is contained in:
Peter Wemm 1995-10-28 18:51:33 +00:00
commit ffb120cc30
4 changed files with 436 additions and 13 deletions

126
gnu/usr.bin/diff/NEWS Normal file
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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.2 (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.

209
gnu/usr.bin/diff/fnmatch.c Normal file
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/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C Library.
Bugs can be reported to bug-glibc@prep.ai.mit.edu.
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 it 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; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
#if defined (CONFIG_BROKETS)
/* We use <config.h> instead of "config.h" so that a compilation
using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
(which it would do because it found this file in $srcdir). */
#include <config.h>
#else
#include "config.h"
#endif
#endif
#include <errno.h>
#include <fnmatch.h>
#include <ctype.h>
/* Comment out all this code if we are using the GNU C Library, and are not
actually compiling the library itself. This code is part of the GNU C
Library, but also included in many other GNU distributions. Compiling
and linking in this code is a waste when using the GNU C library
(especially if it is a shared library). Rather than having every GNU
program understand `configure --with-gnu-libc' and omit the object files,
it is simpler to just do this in the source for each such file. */
#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
#if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
extern int errno;
#endif
/* Match STRING against the filename pattern PATTERN, returning zero if
it matches, nonzero if not. */
int
fnmatch (pattern, string, flags)
const char *pattern;
const char *string;
int flags;
{
register const char *p = pattern, *n = string;
register char c;
/* Note that this evalutes C many times. */
#define FOLD(c) ((flags & FNM_CASEFOLD) && isupper (c) ? tolower (c) : (c))
while ((c = *p++) != '\0')
{
c = FOLD (c);
switch (c)
{
case '?':
if (*n == '\0')
return FNM_NOMATCH;
else if ((flags & FNM_FILE_NAME) && *n == '/')
return FNM_NOMATCH;
else if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
return FNM_NOMATCH;
break;
case '\\':
if (!(flags & FNM_NOESCAPE))
{
c = *p++;
c = FOLD (c);
}
if (FOLD (*n) != c)
return FNM_NOMATCH;
break;
case '*':
if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
return FNM_NOMATCH;
for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
if (((flags & FNM_FILE_NAME) && *n == '/') ||
(c == '?' && *n == '\0'))
return FNM_NOMATCH;
if (c == '\0')
return 0;
{
char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
c1 = FOLD (c1);
for (--p; *n != '\0'; ++n)
if ((c == '[' || FOLD (*n) == c1) &&
fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
return 0;
return FNM_NOMATCH;
}
case '[':
{
/* Nonzero if the sense of the character class is inverted. */
register int not;
if (*n == '\0')
return FNM_NOMATCH;
if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
return FNM_NOMATCH;
not = (*p == '!' || *p == '^');
if (not)
++p;
c = *p++;
for (;;)
{
register char cstart = c, cend = c;
if (!(flags & FNM_NOESCAPE) && c == '\\')
cstart = cend = *p++;
cstart = cend = FOLD (cstart);
if (c == '\0')
/* [ (unterminated) loses. */
return FNM_NOMATCH;
c = *p++;
c = FOLD (c);
if ((flags & FNM_FILE_NAME) && c == '/')
/* [/] can never match. */
return FNM_NOMATCH;
if (c == '-' && *p != ']')
{
cend = *p++;
if (!(flags & FNM_NOESCAPE) && cend == '\\')
cend = *p++;
if (cend == '\0')
return FNM_NOMATCH;
cend = FOLD (cend);
c = *p++;
}
if (FOLD (*n) >= cstart && FOLD (*n) <= cend)
goto matched;
if (c == ']')
break;
}
if (!not)
return FNM_NOMATCH;
break;
matched:;
/* Skip the rest of the [...] that already matched. */
while (c != ']')
{
if (c == '\0')
/* [... (unterminated) loses. */
return FNM_NOMATCH;
c = *p++;
if (!(flags & FNM_NOESCAPE) && c == '\\')
/* XXX 1003.2d11 is unclear if this is right. */
++p;
}
if (not)
return FNM_NOMATCH;
}
break;
default:
if (c != FOLD (*n))
return FNM_NOMATCH;
}
++n;
}
if (*n == '\0')
return 0;
if ((flags & FNM_LEADING_DIR) && *n == '/')
/* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
return 0;
return FNM_NOMATCH;
}
#endif /* _LIBC or not __GNU_LIBRARY__. */

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@ -1,19 +1,21 @@
/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
NOTE: The canonical source of this file is maintained with the GNU C Library.
Bugs can be reported to bug-glibc@prep.ai.mit.edu.
This library is distributed in the hope that it will be useful,
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 it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
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 Library General Public
License along with this library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _FNMATCH_H
@ -34,10 +36,15 @@ extern "C" {
non-ANSI C where `const' is problematical. */
#endif /* C++ or ANSI C. */
/* We #undef these before defining them because some losing systems
(HP-UX A.08.07 for example) define these in <unistd.h>. */
#undef FNM_PATHNAME
#undef FNM_NOESCAPE
#undef FNM_PERIOD
/* Bits set in the FLAGS argument to `fnmatch'. */
#ifndef FNM_PATHNAME
#define FNM_PATHNAME (1 << 0) /* No wildcard can ever match `/'. */
#endif
#define FNM_NOESCAPE (1 << 1) /* Backslashes don't quote special chars. */
#define FNM_PERIOD (1 << 2) /* Leading `.' is matched only explicitly. */

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/* xmalloc.c -- malloc with out of memory checking
Copyright (C) 1990, 1991, 1993 Free Software Foundation, Inc.
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 it 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; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#if __STDC__
#define VOID void
#else
#define VOID char
#endif
#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#else
VOID *malloc ();
VOID *realloc ();
void free ();
#endif
#if __STDC__ && defined (HAVE_VPRINTF)
void error (int, int, char const *, ...);
#else
void error ();
#endif
/* Allocate N bytes of memory dynamically, with error checking. */
VOID *
xmalloc (n)
size_t n;
{
VOID *p;
p = malloc (n);
if (p == 0)
/* Must exit with 2 for `cmp'. */
error (2, 0, "memory exhausted");
return p;
}
/* Change the size of an allocated block of memory P to N bytes,
with error checking.
If P is NULL, run xmalloc.
If N is 0, run free and return NULL. */
VOID *
xrealloc (p, n)
VOID *p;
size_t n;
{
if (p == 0)
return xmalloc (n);
if (n == 0)
{
free (p);
return 0;
}
p = realloc (p, n);
if (p == 0)
/* Must exit with 2 for `cmp'. */
error (2, 0, "memory exhausted");
return p;
}