[p5sagit/p5-mst-13.2.git] / ext / File / Glob / Glob.pm

package File::Glob;

use strict;
use Carp;
our($VERSION, @ISA, @EXPORT_OK, @EXPORT_FAIL, %EXPORT_TAGS,
    $AUTOLOAD, $DEFAULT_FLAGS);

require Exporter;
use XSLoader ();
require AutoLoader;

@ISA = qw(Exporter AutoLoader);

@EXPORT_OK   = qw(
    csh_glob
    glob
    GLOB_ABEND
    GLOB_ALTDIRFUNC
    GLOB_BRACE
    GLOB_CSH
    GLOB_ERR
    GLOB_ERROR
    GLOB_MARK
    GLOB_NOCASE
    GLOB_NOCHECK
    GLOB_NOMAGIC
    GLOB_NOSORT
    GLOB_NOSPACE
    GLOB_QUOTE
    GLOB_TILDE
);

%EXPORT_TAGS = (
    'glob' => [ qw(
        GLOB_ABEND
        GLOB_ALTDIRFUNC
        GLOB_BRACE
        GLOB_CSH
        GLOB_ERR
        GLOB_ERROR
        GLOB_MARK
        GLOB_NOCASE
        GLOB_NOCHECK
        GLOB_NOMAGIC
        GLOB_NOSORT
        GLOB_NOSPACE
        GLOB_QUOTE
        GLOB_TILDE
        glob
    ) ],
);

$VERSION = '0.991';

sub import {
    my $i = 1;
    while ($i < @_) {
	if ($_[$i] =~ /^:(case|nocase|globally)$/) {
	    splice(@_, $i, 1);
	    $DEFAULT_FLAGS &= ~GLOB_NOCASE() if $1 eq 'case';
	    $DEFAULT_FLAGS |= GLOB_NOCASE() if $1 eq 'nocase';
	    if ($1 eq 'globally') {
		local $^W;
		*CORE::GLOBAL::glob = \&File::Glob::csh_glob;
	    }
	    next;
	}
	++$i;
    }
    goto &Exporter::import;
}

sub AUTOLOAD {
    # This AUTOLOAD is used to 'autoload' constants from the constant()
    # XS function.  If a constant is not found then control is passed
    # to the AUTOLOAD in AutoLoader.

    my $constname;
    ($constname = $AUTOLOAD) =~ s/.*:://;
    my $val = constant($constname, @_ ? $_[0] : 0);
    if ($! != 0) {
	if ($! =~ /Invalid/) {
	    $AutoLoader::AUTOLOAD = $AUTOLOAD;
	    goto &AutoLoader::AUTOLOAD;
	}
	else {
		croak "Your vendor has not defined File::Glob macro $constname";
	}
    }
    eval "sub $AUTOLOAD { $val }";
    goto &$AUTOLOAD;
}

XSLoader::load 'File::Glob', $VERSION;

# Preloaded methods go here.

sub GLOB_ERROR {
    return constant('GLOB_ERROR', 0);
}

sub GLOB_CSH () { GLOB_BRACE() | GLOB_NOMAGIC() | GLOB_QUOTE() | GLOB_TILDE() }

$DEFAULT_FLAGS = GLOB_CSH();
if ($^O =~ /^(?:MSWin32|VMS|os2|dos|riscos|MacOS)$/) {
    $DEFAULT_FLAGS |= GLOB_NOCASE();
}

# Autoload methods go after =cut, and are processed by the autosplit program.

sub glob {
    return doglob(@_);
}

## borrowed heavily from gsar's File::DosGlob
my %iter;
my %entries;

sub csh_glob {
    my $pat = shift;
    my $cxix = shift;
    my @pat;

    # glob without args defaults to $_
    $pat = $_ unless defined $pat;

    # extract patterns
    if ($pat =~ /\s/) {
        # XXX this is needed for compatibility with the csh
	# implementation in Perl.  Need to support a flag
	# to disable this behavior.
	require Text::ParseWords;
	@pat = Text::ParseWords::parse_line('\s+',0,$pat);
    }

    # assume global context if not provided one
    $cxix = '_G_' unless defined $cxix;
    $iter{$cxix} = 0 unless exists $iter{$cxix};

    # if we're just beginning, do it all first
    if ($iter{$cxix} == 0) {
	if (@pat) {
	    $entries{$cxix} = [ map { doglob($_, $DEFAULT_FLAGS) } @pat ];
	}
	else {
	    $entries{$cxix} = [ doglob($pat, $DEFAULT_FLAGS) ];
	}
    }

    # chuck it all out, quick or slow
    if (wantarray) {
        delete $iter{$cxix};
        return @{delete $entries{$cxix}};
    }
    else {
        if ($iter{$cxix} = scalar @{$entries{$cxix}}) {
            return shift @{$entries{$cxix}};
        }
        else {
            # return undef for EOL
            delete $iter{$cxix};
            delete $entries{$cxix};
            return undef;
        }
    }
}

1;
__END__

=head1 NAME

File::Glob - Perl extension for BSD glob routine

=head1 SYNOPSIS

  use File::Glob ':glob';
  @list = glob('*.[ch]');
  $homedir = glob('~gnat', GLOB_TILDE | GLOB_ERR);
  if (GLOB_ERROR) {
    # an error occurred reading $homedir
  }

  ## override the core glob (even with -T)
  use File::Glob ':globally';
  my @sources = <*.{c,h,y}>

  ## override the core glob, forcing case sensitivity
  use File::Glob qw(:globally :case);
  my @sources = <*.{c,h,y}>

  ## override the core glob forcing case insensitivity
  use File::Glob qw(:globally :nocase);
  my @sources = <*.{c,h,y}>

=head1 DESCRIPTION

File::Glob implements the FreeBSD glob(3) routine, which is a superset
of the POSIX glob() (described in IEEE Std 1003.2 "POSIX.2").  The
glob() routine takes a mandatory C<pattern> argument, and an optional
C<flags> argument, and returns a list of filenames matching the
pattern, with interpretation of the pattern modified by the C<flags>
variable.  The POSIX defined flags are:

=over 4

=item C<GLOB_ERR>

Force glob() to return an error when it encounters a directory it
cannot open or read.  Ordinarily glob() continues to find matches.

=item C<GLOB_MARK>

Each pathname that is a directory that matches the pattern has a slash
appended.

=item C<GLOB_NOCASE>

By default, file names are assumed to be case sensitive; this flag
makes glob() treat case differences as not significant.

=item C<GLOB_NOCHECK>

If the pattern does not match any pathname, then glob() returns a list
consisting of only the pattern.  If C<GLOB_QUOTE> is set, its effect
is present in the pattern returned.

=item C<GLOB_NOSORT>

By default, the pathnames are sorted in ascending ASCII order; this
flag prevents that sorting (speeding up glob()).

=back

The FreeBSD extensions to the POSIX standard are the following flags:

=over 4

=item C<GLOB_BRACE>

Pre-process the string to expand C<{pat,pat,...}> strings like csh(1).
The pattern '{}' is left unexpanded for historical reasons (and csh(1)
does the same thing to ease typing of find(1) patterns).

=item C<GLOB_NOMAGIC>

Same as C<GLOB_NOCHECK> but it only returns the pattern if it does not
contain any of the special characters "*", "?" or "[".  C<NOMAGIC> is
provided to simplify implementing the historic csh(1) globbing
behaviour and should probably not be used anywhere else.

=item C<GLOB_QUOTE>

Use the backslash ('\') character for quoting: every occurrence of a
backslash followed by a character in the pattern is replaced by that
character, avoiding any special interpretation of the character.
(But see below for exceptions on DOSISH systems).

=item C<GLOB_TILDE>

Expand patterns that start with '~' to user name home directories.

=item C<GLOB_CSH>

For convenience, C<GLOB_CSH> is a synonym for
C<GLOB_BRACE | GLOB_NOMAGIC | GLOB_QUOTE | GLOB_TILDE>.

=back

The POSIX provided C<GLOB_APPEND>, C<GLOB_DOOFFS>, and the FreeBSD
extensions C<GLOB_ALTDIRFUNC>, and C<GLOB_MAGCHAR> flags have not been
implemented in the Perl version because they involve more complex
interaction with the underlying C structures.

=head1 DIAGNOSTICS

glob() returns a list of matching paths, possibly zero length.  If an
error occurred, &File::Glob::GLOB_ERROR will be non-zero and C<$!> will be
set.  &File::Glob::GLOB_ERROR is guaranteed to be zero if no error occurred,
or one of the following values otherwise:

=over 4

=item C<GLOB_NOSPACE>

An attempt to allocate memory failed.

=item C<GLOB_ABEND>

The glob was stopped because an error was encountered.

=back

In the case where glob() has found some matching paths, but is
interrupted by an error, glob() will return a list of filenames B<and>
set &File::Glob::ERROR.

Note that glob() deviates from POSIX and FreeBSD glob(3) behaviour by
not considering C<ENOENT> and C<ENOTDIR> as errors - glob() will
continue processing despite those errors, unless the C<GLOB_ERR> flag is
set.

Be aware that all filenames returned from File::Glob are tainted.

=head1 NOTES

=over 4

=item *

If you want to use multiple patterns, e.g. C<glob "a* b*">, you should
probably throw them in a set as in C<glob "{a*,b*}>.  This is because
the argument to glob isn't subjected to parsing by the C shell.  Remember
that you can use a backslash to escape things.

=item *

On DOSISH systems, backslash is a valid directory separator character.
In this case, use of backslash as a quoting character (via GLOB_QUOTE)
interferes with the use of backslash as a directory separator. The
best (simplest, most portable) solution is to use forward slashes for
directory separators, and backslashes for quoting. However, this does
not match "normal practice" on these systems. As a concession to user
expectation, therefore, backslashes (under GLOB_QUOTE) only quote the
glob metacharacters '[', ']', '{', '}', '-', '~', and backslash itself.
All other backslashes are passed through unchanged.

=item *

Win32 users should use the real slash.  If you really want to use
backslashes, consider using Sarathy's File::DosGlob, which comes with
the standard Perl distribution.

=back

=head1 AUTHOR

The Perl interface was written by Nathan Torkington E<lt>gnat@frii.comE<gt>,
and is released under the artistic license.  Further modifications were
made by Greg Bacon E<lt>gbacon@cs.uah.eduE<gt> and Gurusamy Sarathy
E<lt>gsar@activestate.comE<gt>.  The C glob code has the
following copyright:

    Copyright (c) 1989, 1993 The Regents of the University of California.
    All rights reserved.
      
    This code is derived from software contributed to Berkeley by
    Guido van Rossum.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

    1. Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.
    3. Neither the name of the University nor the names of its contributors
       may be used to endorse or promote products derived from this software
       without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    SUCH DAMAGE.

=cut
Commit	Line	Data
72b16652	1	package File::Glob;
	2
	3	use strict;
	4	use Carp;
17f410f9	5	our($VERSION, @ISA, @EXPORT_OK, @EXPORT_FAIL, %EXPORT_TAGS,
17f410f9	6	$AUTOLOAD, $DEFAULT_FLAGS);
72b16652	7
72b16652	8	require Exporter;
9426adcd	9	use XSLoader ();
72b16652	10	require AutoLoader;
72b16652	11
9426adcd	12	@ISA = qw(Exporter AutoLoader);
72b16652	13
72b16652	14	@EXPORT_OK = qw(
72b16652	15	csh_glob
	16	glob
	17	GLOB_ABEND
	18	GLOB_ALTDIRFUNC
	19	GLOB_BRACE
220398a0	20	GLOB_CSH
72b16652	21	GLOB_ERR
	22	GLOB_ERROR
	23	GLOB_MARK
220398a0	24	GLOB_NOCASE
72b16652	25	GLOB_NOCHECK
	26	GLOB_NOMAGIC
	27	GLOB_NOSORT
	28	GLOB_NOSPACE
	29	GLOB_QUOTE
	30	GLOB_TILDE
	31	);
	32
72b16652	33	%EXPORT_TAGS = (
	34	'glob' => [ qw(
	35	GLOB_ABEND
	36	GLOB_ALTDIRFUNC
	37	GLOB_BRACE
220398a0	38	GLOB_CSH
72b16652	39	GLOB_ERR
	40	GLOB_ERROR
	41	GLOB_MARK
220398a0	42	GLOB_NOCASE
72b16652	43	GLOB_NOCHECK
	44	GLOB_NOMAGIC
	45	GLOB_NOSORT
	46	GLOB_NOSPACE
	47	GLOB_QUOTE
	48	GLOB_TILDE
	49	glob
	50	) ],
	51	);
	52
220398a0	53	$VERSION = '0.991';
	54
	55	sub import {
	56	my $i = 1;
	57	while ($i < @_) {
	58	if ($_[$i] =~ /^:(case\|nocase\|globally)$/) {
	59	splice(@_, $i, 1);
	60	$DEFAULT_FLAGS &= ~GLOB_NOCASE() if $1 eq 'case';
	61	$DEFAULT_FLAGS \|= GLOB_NOCASE() if $1 eq 'nocase';
	62	if ($1 eq 'globally') {
	63	local $^W;
	64	*CORE::GLOBAL::glob = \&File::Glob::csh_glob;
	65	}
	66	next;
	67	}
	68	++$i;
72b16652	69	}
220398a0	70	goto &Exporter::import;
72b16652	71	}
	72
	73	sub AUTOLOAD {
	74	# This AUTOLOAD is used to 'autoload' constants from the constant()
	75	# XS function. If a constant is not found then control is passed
	76	# to the AUTOLOAD in AutoLoader.
	77
	78	my $constname;
	79	($constname = $AUTOLOAD) =~ s/.*:://;
	80	my $val = constant($constname, @_ ? $_[0] : 0);
	81	if ($! != 0) {
	82	if ($! =~ /Invalid/) {
	83	$AutoLoader::AUTOLOAD = $AUTOLOAD;
	84	goto &AutoLoader::AUTOLOAD;
	85	}
	86	else {
	87	croak "Your vendor has not defined File::Glob macro $constname";
	88	}
	89	}
	90	eval "sub $AUTOLOAD { $val }";
	91	goto &$AUTOLOAD;
	92	}
	93
9426adcd	94	XSLoader::load 'File::Glob', $VERSION;
72b16652	95
	96	# Preloaded methods go here.
	97
	98	sub GLOB_ERROR {
	99	return constant('GLOB_ERROR', 0);
	100	}
	101
	102	sub GLOB_CSH () { GLOB_BRACE() \| GLOB_NOMAGIC() \| GLOB_QUOTE() \| GLOB_TILDE() }
	103
220398a0	104	$DEFAULT_FLAGS = GLOB_CSH();
	105	if ($^O =~ /^(?:MSWin32\|VMS\|os2\|dos\|riscos\|MacOS)$/) {
	106	$DEFAULT_FLAGS \|= GLOB_NOCASE();
	107	}
	108
72b16652	109	# Autoload methods go after =cut, and are processed by the autosplit program.
	110
	111	sub glob {
	112	return doglob(@_);
	113	}
	114
	115	## borrowed heavily from gsar's File::DosGlob
	116	my %iter;
	117	my %entries;
	118
	119	sub csh_glob {
	120	my $pat = shift;
	121	my $cxix = shift;
	122	my @pat;
	123
	124	# glob without args defaults to $_
	125	$pat = $_ unless defined $pat;
	126
	127	# extract patterns
	128	if ($pat =~ /\s/) {
	129	# XXX this is needed for compatibility with the csh
	130	# implementation in Perl. Need to support a flag
	131	# to disable this behavior.
	132	require Text::ParseWords;
	133	@pat = Text::ParseWords::parse_line('\s+',0,$pat);
	134	}
	135
	136	# assume global context if not provided one
	137	$cxix = '_G_' unless defined $cxix;
	138	$iter{$cxix} = 0 unless exists $iter{$cxix};
	139
	140	# if we're just beginning, do it all first
	141	if ($iter{$cxix} == 0) {
	142	if (@pat) {
220398a0	143	$entries{$cxix} = [ map { doglob($_, $DEFAULT_FLAGS) } @pat ];
72b16652	144	}
72b16652	145	else {
220398a0	146	$entries{$cxix} = [ doglob($pat, $DEFAULT_FLAGS) ];
72b16652	147	}
	148	}
	149
	150	# chuck it all out, quick or slow
	151	if (wantarray) {
	152	delete $iter{$cxix};
	153	return @{delete $entries{$cxix}};
	154	}
	155	else {
	156	if ($iter{$cxix} = scalar @{$entries{$cxix}}) {
	157	return shift @{$entries{$cxix}};
	158	}
	159	else {
	160	# return undef for EOL
	161	delete $iter{$cxix};
	162	delete $entries{$cxix};
	163	return undef;
	164	}
	165	}
	166	}
	167
	168	1;
	169	__END__
	170
	171	=head1 NAME
	172
	173	File::Glob - Perl extension for BSD glob routine
	174
	175	=head1 SYNOPSIS
	176
	177	use File::Glob ':glob';
	178	@list = glob('*.[ch]');
	179	$homedir = glob('~gnat', GLOB_TILDE \| GLOB_ERR);
	180	if (GLOB_ERROR) {
	181	# an error occurred reading $homedir
	182	}
	183
	184	## override the core glob (even with -T)
220398a0	185	use File::Glob ':globally';
	186	my @sources = <*.{c,h,y}>
	187
	188	## override the core glob, forcing case sensitivity
	189	use File::Glob qw(:globally :case);
	190	my @sources = <*.{c,h,y}>
	191
	192	## override the core glob forcing case insensitivity
	193	use File::Glob qw(:globally :nocase);
72b16652	194	my @sources = <*.{c,h,y}>
	195
	196	=head1 DESCRIPTION
	197
	198	File::Glob implements the FreeBSD glob(3) routine, which is a superset
	199	of the POSIX glob() (described in IEEE Std 1003.2 "POSIX.2"). The
	200	glob() routine takes a mandatory C<pattern> argument, and an optional
	201	C<flags> argument, and returns a list of filenames matching the
	202	pattern, with interpretation of the pattern modified by the C<flags>
	203	variable. The POSIX defined flags are:
	204
	205	=over 4
	206
	207	=item C<GLOB_ERR>
	208
	209	Force glob() to return an error when it encounters a directory it
	210	cannot open or read. Ordinarily glob() continues to find matches.
	211
	212	=item C<GLOB_MARK>
	213
	214	Each pathname that is a directory that matches the pattern has a slash
	215	appended.
	216
220398a0	217	=item C<GLOB_NOCASE>
	218
	219	By default, file names are assumed to be case sensitive; this flag
	220	makes glob() treat case differences as not significant.
	221
72b16652	222	=item C<GLOB_NOCHECK>
	223
	224	If the pattern does not match any pathname, then glob() returns a list
	225	consisting of only the pattern. If C<GLOB_QUOTE> is set, its effect
	226	is present in the pattern returned.
	227
	228	=item C<GLOB_NOSORT>
	229
	230	By default, the pathnames are sorted in ascending ASCII order; this
	231	flag prevents that sorting (speeding up glob()).
	232
	233	=back
	234
	235	The FreeBSD extensions to the POSIX standard are the following flags:
	236
	237	=over 4
	238
	239	=item C<GLOB_BRACE>
	240
a45bd81d	241	Pre-process the string to expand C<{pat,pat,...}> strings like csh(1).
72b16652	242	The pattern '{}' is left unexpanded for historical reasons (and csh(1)
	243	does the same thing to ease typing of find(1) patterns).
	244
	245	=item C<GLOB_NOMAGIC>
	246
	247	Same as C<GLOB_NOCHECK> but it only returns the pattern if it does not
	248	contain any of the special characters "*", "?" or "[". C<NOMAGIC> is
	249	provided to simplify implementing the historic csh(1) globbing
	250	behaviour and should probably not be used anywhere else.
	251
	252	=item C<GLOB_QUOTE>
	253
	254	Use the backslash ('\') character for quoting: every occurrence of a
	255	backslash followed by a character in the pattern is replaced by that
	256	character, avoiding any special interpretation of the character.
220398a0	257	(But see below for exceptions on DOSISH systems).
72b16652	258
	259	=item C<GLOB_TILDE>
	260
	261	Expand patterns that start with '~' to user name home directories.
	262
	263	=item C<GLOB_CSH>
	264
	265	For convenience, C<GLOB_CSH> is a synonym for
	266	C<GLOB_BRACE \| GLOB_NOMAGIC \| GLOB_QUOTE \| GLOB_TILDE>.
	267
	268	=back
	269
	270	The POSIX provided C<GLOB_APPEND>, C<GLOB_DOOFFS>, and the FreeBSD
	271	extensions C<GLOB_ALTDIRFUNC>, and C<GLOB_MAGCHAR> flags have not been
	272	implemented in the Perl version because they involve more complex
	273	interaction with the underlying C structures.
	274
	275	=head1 DIAGNOSTICS
	276
	277	glob() returns a list of matching paths, possibly zero length. If an
	278	error occurred, &File::Glob::GLOB_ERROR will be non-zero and C<$!> will be
	279	set. &File::Glob::GLOB_ERROR is guaranteed to be zero if no error occurred,
	280	or one of the following values otherwise:
	281
	282	=over 4
	283
	284	=item C<GLOB_NOSPACE>
	285
	286	An attempt to allocate memory failed.
	287
	288	=item C<GLOB_ABEND>
	289
	290	The glob was stopped because an error was encountered.
	291
	292	=back
	293
	294	In the case where glob() has found some matching paths, but is
	295	interrupted by an error, glob() will return a list of filenames B<and>
	296	set &File::Glob::ERROR.
	297
	298	Note that glob() deviates from POSIX and FreeBSD glob(3) behaviour by
	299	not considering C<ENOENT> and C<ENOTDIR> as errors - glob() will
	300	continue processing despite those errors, unless the C<GLOB_ERR> flag is
	301	set.
	302
	303	Be aware that all filenames returned from File::Glob are tainted.
	304
	305	=head1 NOTES
	306
	307	=over 4
	308
	309	=item *
	310
	311	If you want to use multiple patterns, e.g. C<glob "a* b*">, you should
	312	probably throw them in a set as in C<glob "{a,b}>. This is because
	313	the argument to glob isn't subjected to parsing by the C shell. Remember
	314	that you can use a backslash to escape things.
	315
	316	=item *
	317
220398a0	318	On DOSISH systems, backslash is a valid directory separator character.
	319	In this case, use of backslash as a quoting character (via GLOB_QUOTE)
	320	interferes with the use of backslash as a directory separator. The
	321	best (simplest, most portable) solution is to use forward slashes for
	322	directory separators, and backslashes for quoting. However, this does
	323	not match "normal practice" on these systems. As a concession to user
	324	expectation, therefore, backslashes (under GLOB_QUOTE) only quote the
	325	glob metacharacters '[', ']', '{', '}', '-', '~', and backslash itself.
	326	All other backslashes are passed through unchanged.
	327
	328	=item *
	329
72b16652	330	Win32 users should use the real slash. If you really want to use
	331	backslashes, consider using Sarathy's File::DosGlob, which comes with
	332	the standard Perl distribution.
	333
a45bd81d	334	=back
a45bd81d	335
72b16652	336	=head1 AUTHOR
72b16652	337
0e950d83	338	The Perl interface was written by Nathan Torkington E<lt>gnat@frii.comE<gt>,
72b16652	339	and is released under the artistic license. Further modifications were
	340	made by Greg Bacon E<lt>gbacon@cs.uah.eduE<gt> and Gurusamy Sarathy
	341	E<lt>gsar@activestate.comE<gt>. The C glob code has the
	342	following copyright:
	343
0e950d83	344	Copyright (c) 1989, 1993 The Regents of the University of California.
	345	All rights reserved.
	346
	347	This code is derived from software contributed to Berkeley by
	348	Guido van Rossum.
	349
	350	Redistribution and use in source and binary forms, with or without
	351	modification, are permitted provided that the following conditions
	352	are met:
	353
	354	1. Redistributions of source code must retain the above copyright
	355	notice, this list of conditions and the following disclaimer.
	356	2. Redistributions in binary form must reproduce the above copyright
	357	notice, this list of conditions and the following disclaimer in the
	358	documentation and/or other materials provided with the distribution.
	359	3. Neither the name of the University nor the names of its contributors
	360	may be used to endorse or promote products derived from this software
	361	without specific prior written permission.
	362
	363	THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	364	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	365	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	366	ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	367	FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	368	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	369	OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	370	HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	371	LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	372	OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	373	SUCH DAMAGE.
72b16652	374
72b16652	375	=cut