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GNU Textutils-1.6

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Nate Williams 1993-06-29 05:21:43 +00:00
parent 8e409770a3
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Notes: svn2git 2020-12-20 02:59:44 +00:00 
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339
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
675 Mass Ave, Cambridge, MA 02139, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
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These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
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We protect your rights with two steps: (1) copyright the software, and
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Finally, any free program is threatened constantly by software
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The precise terms and conditions for copying, distribution and
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GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
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either verbatim or with modifications and/or translated into another
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the term "modification".) Each licensee is addressed as "you".
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Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
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NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
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OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
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POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
Appendix: How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
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 of the License, 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.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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PROG= sort
SRCS= sort.c error.c
.include <bsd.prog.mk>

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/* error.c -- error handler for noninteractive utilities
Copyright (C) 1990, 1991, 1992 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. */
/* Written by David MacKenzie. */
#include <stdio.h>
#ifdef HAVE_VPRINTF
#if __STDC__
#include <stdarg.h>
#define VA_START(args, lastarg) va_start(args, lastarg)
#else /* !__STDC__ */
#include <varargs.h>
#define VA_START(args, lastarg) va_start(args)
#endif /* !__STDC__ */
#else /* !HAVE_VPRINTF */
#ifdef HAVE_DOPRNT
#define va_alist args
#define va_dcl int args;
#else /* !HAVE_DOPRNT */
#define va_alist a1, a2, a3, a4, a5, a6, a7, a8
#define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
#endif /* !HAVE_DOPRNT */
#endif /* !HAVE_VPRINTF */
#ifdef STDC_HEADERS
#include <stdlib.h>
#include <string.h>
#else /* !STDC_HEADERS */
void exit ();
#endif /* !STDC_HEADERS */
extern char *program_name;
#ifndef HAVE_STRERROR
static char *
private_strerror (errnum)
int errnum;
{
extern char *sys_errlist[];
extern int sys_nerr;
if (errnum > 0 && errnum <= sys_nerr)
return sys_errlist[errnum];
return "Unknown system error";
}
#define strerror private_strerror
#endif /* !HAVE_STRERROR */
/* Print the program name and error message MESSAGE, which is a printf-style
format string with optional args.
If ERRNUM is nonzero, print its corresponding system error message.
Exit with status STATUS if it is nonzero. */
/* VARARGS */
void
#if defined (HAVE_VPRINTF) && __STDC__
error (int status, int errnum, char *message, ...)
#else /* !HAVE_VPRINTF or !__STDC__ */
error (status, errnum, message, va_alist)
int status;
int errnum;
char *message;
va_dcl
#endif /* !HAVE_VPRINTF or !__STDC__ */
{
#ifdef HAVE_VPRINTF
va_list args;
#endif /* HAVE_VPRINTF */
fprintf (stderr, "%s: ", program_name);
#ifdef HAVE_VPRINTF
VA_START (args, message);
vfprintf (stderr, message, args);
va_end (args);
#else /* !HAVE_VPRINTF */
#ifdef HAVE_DOPRNT
_doprnt (message, &args, stderr);
#else /* !HAVE_DOPRNT */
fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
#endif /* !HAVE_DOPRNT */
#endif /* !HAVE_VPRINTF */
if (errnum)
fprintf (stderr, ": %s", strerror (errnum));
putc ('\n', stderr);
fflush (stderr);
if (status)
exit (status);
}

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.TH SORT 1L \" -*- nroff -*-
.SH NAME
sort \- sort lines of text files
.SH SYNOPSIS
.B sort
[\-cmus] [\-t separator] [\-o output-file] [\-T tempdir] [\-bdfiMnr]
[+POS1 [\-POS2]] [\-k POS1[,POS2]] [file...]
.SH DESCRIPTION
This manual page
documents the GNU version of
.BR sort .
.B sort
sorts, merges, or compares all the lines from the given files, or the standard
input if no files are given. A file name of `-' means standard input.
By default,
.B sort
writes the results to the standard output.
.PP
.B sort
has three modes of operation: sort (the default), merge, and check for
sortedness. The following options change the operation mode:
.TP
.I \-c
Check whether the given files are already sorted: if they are not all
sorted, print an error message and exit with a status of 1.
.TP
.I \-m
Merge the given files by sorting them as a group. Each input file
should already be individually sorted. It always works to sort
instead of merge; merging is provided because it is faster, in the
case where it works.
.PP
A pair of lines is compared as follows:
if any key fields have been specified,
.B sort
compares each pair of fields, in the order specified on the command
line, according to the associated ordering options, until a difference
is found or no fields are left.
.PP
If any of the global options
.I Mbdfinr
are given but no key fields are
specified,
.B sort
compares the entire lines according to the global options.
.PP
Finally, as a last resort when all keys compare equal
(or if no ordering options were specified at all),
.B sort
compares the lines byte by byte in machine collating sequence.
The last resort comparison honors the
.I -r
global option.
The
.I \-s
(stable) option disables this last-resort comparison so that
lines in which all fields compare equal are left in their original
relative order. If no fields or global options are specified,
.I \-s
has no effect.
.PP
GNU
.B sort
has no limits on input line length or restrictions on bytes allowed
within lines. In addition, if the final byte of an input file is not
a newline, GNU
.B sort
silently supplies one.
.PP
If the environment variable
.B TMPDIR
is set,
.B sort
uses it as the directory in which to put temporary files instead of
the default, /tmp. The
.I "\-T tempdir"
option is another way to select the directory for temporary files; it
overrides the environment variable.
.PP
The following options affect the ordering of output lines. They may
be specified globally or as part of a specific key field. If no key
fields are specified, global options apply to comparison of entire
lines; otherwise the global options are inherited by key fields that
do not specify any special options of their own.
.TP
.I \-b
Ignore leading blanks when finding sort keys in each line.
.TP
.I \-d
Sort in `phone directory' order: ignore all characters except letters,
digits and blanks when sorting.
.TP
.I \-f
Fold lower case characters into the equivalent upper case characters
when sorting so that, for example, `b' is sorted the same way `B' is.
.TP
.I \-i
Ignore characters outside the ASCII range 040-0176 octal (inclusive)
when sorting.
.TP
.I \-M
An initial string, consisting of any amount of white space, followed
by three letters abbreviating a month name, is folded to UPPER case
and compared in the order `JAN' < `FEB' < ... < `DEC.' Invalid names
compare low to valid names.
.TP
.I \-n
Compare according to arithmetic value an initial numeric string
consisting of optional white space, an optional \- sign, and zero or
more digits, optionally followed by a decimal point and zero or more
digits.
.TP
.I \-r
Reverse the result of comparison, so that lines with greater key
values appear earlier in the output instead of later.
.PP
Other options are:
.TP
.I "\-o output-file"
Write output to
.I output-file
instead of to the standard output. If
.I output-file
is one of the input files,
.B sort
copies it to a temporary file before sorting and writing the output to
.IR output-file .
.TP
.I "\-t separator"
Use character
.I separator
as the field separator when finding the sort keys in each line. By
default, fields are separated by the empty string between a
non-whitespace character and a whitespace character. That is to say,
given the input line ` foo bar',
.B sort
breaks it into fields ` foo' and ` bar'. The field separator is not
considered to be part of either the field preceding or the field
following it.
.TP
.I \-u
For the default case or the
.I \-m
option, only output the first of a sequence of lines that compare
equal. For the
.I \-c
option, check that no pair of consecutive lines compares equal.
.TP
.I "+POS1 [\-POS2]"
Specify a field within each line to use as a sorting key. The field
consists of the portion of the line starting at POS1 and up to (but
not including) POS2 (or to the end of the line if POS2 is not given).
The fields and character positions are numbered starting with 0.
.TP
.I "\-k POS1[,POS2]"
An alternate syntax for specifying sorting keys.
The fields and character positions are numbered starting with 1.
.PP
A position has the form \fIf\fP.\fIc\fP, where \fIf\fP is the number
of the field to use and \fIc\fP is the number of the first character
from the beginning of the field (for \fI+pos\fP) or from the end of
the previous field (for \fI\-pos\fP). The .\fIc\fP part of a position
may be omitted in which case it is taken to be the first character in
the field. If the
.I \-b
option has been given, the .\fIc\fP part of a field specification is
counted from the first nonblank character of the field (for
\fI+pos\fP) or from the first nonblank character following the
previous field (for \fI\-pos\fP).
.PP
A \fI+pos\fP or \fI-pos\fP argument may also have any of the option
letters
.I Mbdfinr
appended to it, in which case the global ordering options are not used
for that particular field. The
.I \-b
option may be independently attached to either or both of the
\fI+pos\fP and \fI\-pos\fP parts of a field specification, and if it
is inherited from the global options it will be attached to both.
If a
.I \-n
or
.I \-M
option is used, thus implying a
.I \-b
option, the
.I \-b
option is taken to apply to both the \fI+pos\fP and the \fI\-pos\fP
parts of a key specification. Keys may span multiple fields.
.SH COMPATIBILITY
.PP
Historical (BSD and System V) implementations of
.B sort
have differed in their interpretation of some options,
particularly
.IR \-b ,
.IR \-f ,
and
.IR \-n .
GNU sort follows the POSIX behavior, which is
usually (but not always!) like the System V behavior.
According to POSIX
.I \-n
no longer implies
.IR \-b .
For consistency,
.I \-M
has been changed in the same way.
This may affect the meaning of character positions in field
specifications in obscure cases.
If this bites you the fix is to add an explicit
.IR \-b .
.SH BUGS
The different meaning of field numbers depending
on whether
.I -k
is used is confusing.
It's all POSIX's fault!

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/* system-dependent definitions for textutils programs.
Copyright (C) 1989, 1990, 1991 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. */
/* Include sys/types.h before this file. */
#include <sys/stat.h>
#ifndef S_ISREG /* Doesn't have POSIX.1 stat stuff. */
#define mode_t unsigned short
#endif
#if !defined(S_ISBLK) && defined(S_IFBLK)
#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#endif
#if !defined(S_ISCHR) && defined(S_IFCHR)
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#endif
#if !defined(S_ISDIR) && defined(S_IFDIR)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#if !defined(S_ISREG) && defined(S_IFREG)
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
#if !defined(S_ISFIFO) && defined(S_IFIFO)
#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
#endif
#if !defined(S_ISLNK) && defined(S_IFLNK)
#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
#endif
#if !defined(S_ISSOCK) && defined(S_IFSOCK)
#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
#endif
#if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
#define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
#define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
#endif
#if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
#define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
#endif
#if !defined(HAVE_MKFIFO)
#define mkfifo(path, mode) (mknod ((path), (mode) | S_IFIFO, 0))
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifndef _POSIX_VERSION
off_t lseek ();
#endif
#if defined(HAVE_STRING_H) || defined(STDC_HEADERS)
#if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
#include <memory.h>
#endif
#include <string.h>
#ifndef index
#define index strchr
#endif
#ifndef rindex
#define rindex strrchr
#endif
/* Don't define bcopy; we need one that can handle overlaps. */
#ifndef bzero
#define bzero(s, n) memset ((s), 0, (n))
#endif
#ifndef bcmp
#define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
#endif
#else
#include <strings.h>
char *memchr ();
#endif
#include <errno.h>
#ifdef STDC_HEADERS
#include <stdlib.h>
#else
char *getenv ();
extern int errno;
#endif
#if defined(HAVE_FCNTL_H) || defined(_POSIX_VERSION)
#include <fcntl.h>
#else
#include <sys/file.h>
#endif
#if !defined(SEEK_SET)
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#endif
#ifndef _POSIX_SOURCE
#include <sys/param.h>
#endif
/* Get or fake the disk device blocksize.
Usually defined by sys/param.h (if at all). */
#if !defined(DEV_BSIZE) && defined(BSIZE)
#define DEV_BSIZE BSIZE
#endif
#if !defined(DEV_BSIZE) && defined(BBSIZE) /* SGI */
#define DEV_BSIZE BBSIZE
#endif
#ifndef DEV_BSIZE
#define DEV_BSIZE 4096
#endif
/* Extract or fake data from a `struct stat'.
ST_BLKSIZE: Optimal I/O blocksize for the file, in bytes. */
#ifndef HAVE_ST_BLKSIZE
# define ST_BLKSIZE(statbuf) DEV_BSIZE
#else /* HAVE_ST_BLKSIZE */
/* Some systems, like Sequents, return st_blksize of 0 on pipes. */
# define ST_BLKSIZE(statbuf) ((statbuf).st_blksize > 0 \
? (statbuf).st_blksize : DEV_BSIZE)
#endif /* HAVE_ST_BLKSIZE */
#ifndef S_ISLNK
#define lstat stat
#endif
#ifndef RETSIGTYPE
#define RETSIGTYPE void
#endif
#include <ctype.h>
#ifndef isascii
#define isascii(c) 1
#endif
#ifdef isblank
#define ISBLANK(c) (isascii (c) && isblank (c))
#else
#define ISBLANK(c) ((c) == ' ' || (c) == '\t')
#endif
#ifdef isgraph
#define ISGRAPH(c) (isascii (c) && isgraph (c))
#else
#define ISGRAPH(c) (isascii (c) && isprint (c) && !isspace (c))
#endif
#define ISPRINT(c) (isascii (c) && isprint (c))
#define ISDIGIT(c) (isascii (c) && isdigit (c))
#define ISALNUM(c) (isascii (c) && isalnum (c))
#define ISALPHA(c) (isascii (c) && isalpha (c))
#define ISCNTRL(c) (isascii (c) && iscntrl (c))
#define ISLOWER(c) (isascii (c) && islower (c))
#define ISPUNCT(c) (isascii (c) && ispunct (c))
#define ISSPACE(c) (isascii (c) && isspace (c))
#define ISUPPER(c) (isascii (c) && isupper (c))
#define ISXDIGIT(c) (isascii (c) && isxdigit (c))