dslinux/user/perl/ext/File/Glob Changes Glob.pm Glob.xs Makefile.PL TODO bsd_glob.c bsd_glob.h
cayenne
dslinux_cayenne at user.in-berlin.de
Mon Dec 4 17:59:24 CET 2006
Update of /cvsroot/dslinux/dslinux/user/perl/ext/File/Glob
In directory antilope:/tmp/cvs-serv17422/ext/File/Glob
Added Files:
Changes Glob.pm Glob.xs Makefile.PL TODO bsd_glob.c bsd_glob.h
Log Message:
Adding fresh perl source to HEAD to branch from
--- NEW FILE: bsd_glob.h ---
/*
* 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.
*
* @(#)glob.h 8.1 (Berkeley) 6/2/93
* [lots of perl-specific changes since then--see bsd_glob.c]
*/
#ifndef _BSD_GLOB_H_
#define _BSD_GLOB_H_
/* #include <sys/cdefs.h> */
typedef struct {
int gl_pathc; /* Count of total paths so far. */
int gl_matchc; /* Count of paths matching pattern. */
int gl_offs; /* Reserved at beginning of gl_pathv. */
int gl_flags; /* Copy of flags parameter to glob. */
char **gl_pathv; /* List of paths matching pattern. */
/* Copy of errfunc parameter to glob. */
int (*gl_errfunc)(const char *, int);
/*
* Alternate filesystem access methods for glob; replacement
* versions of closedir(3), readdir(3), opendir(3), stat(2)
* and lstat(2).
*/
void (*gl_closedir)(void *);
Direntry_t *(*gl_readdir)(void *);
void *(*gl_opendir)(const char *);
int (*gl_lstat)(const char *, Stat_t *);
int (*gl_stat)(const char *, Stat_t *);
} glob_t;
#define GLOB_APPEND 0x0001 /* Append to output from previous call. */
#define GLOB_DOOFFS 0x0002 /* Use gl_offs. */
#define GLOB_ERR 0x0004 /* Return on error. */
#define GLOB_MARK 0x0008 /* Append / to matching directories. */
#define GLOB_NOCHECK 0x0010 /* Return pattern itself if nothing matches. */
#define GLOB_NOSORT 0x0020 /* Don't sort. */
#define GLOB_ALTDIRFUNC 0x0040 /* Use alternately specified directory funcs. */
#define GLOB_BRACE 0x0080 /* Expand braces ala csh. */
#define GLOB_MAGCHAR 0x0100 /* Pattern had globbing characters. */
#define GLOB_NOMAGIC 0x0200 /* GLOB_NOCHECK without magic chars (csh). */
#define GLOB_QUOTE 0x0400 /* Quote special chars with \. */
#define GLOB_TILDE 0x0800 /* Expand tilde names from the passwd file. */
#define GLOB_NOCASE 0x1000 /* Treat filenames without regard for case. */
#define GLOB_ALPHASORT 0x2000 /* Alphabetic, not ASCII sort, like csh. */
#define GLOB_LIMIT 0x4000 /* Limit pattern match output to ARG_MAX
(usually from limits.h). */
#define GLOB_NOSPACE (-1) /* Malloc call failed. */
#define GLOB_ABEND (-2) /* Unignored error. */
int bsd_glob(const char *, int, int (*)(const char *, int), glob_t *);
void bsd_globfree(glob_t *);
#endif /* !_BSD_GLOB_H_ */
--- NEW FILE: Makefile.PL ---
use ExtUtils::MakeMaker;
use ExtUtils::Constant 0.11 'WriteConstants';
WriteMakefile(
NAME => 'File::Glob',
VERSION_FROM => 'Glob.pm',
MAN3PODS => {}, # Pods will be built by installman.
OBJECT => 'bsd_glob$(OBJ_EXT) Glob$(OBJ_EXT)',
realclean => {FILES=> 'const-c.inc const-xs.inc'},
## uncomment for glob debugging (will cause make test to fail)
# DEFINE => '-DGLOB_DEBUG',
# OPTIMIZE => '-g',
);
use Config;
sub MY::cflags {
package MY;
my $inherited = shift->SUPER::cflags(@_);
if ($Config::Config{archname} =~ /^aix/ and
$Config::Config{use64bitall} eq 'define') {
$inherited =~ s/\s-O\d?//m;
}
$inherited;
}
WriteConstants(
NAME => 'File::Glob',
NAMES => [qw(GLOB_ABEND GLOB_ALPHASORT GLOB_ALTDIRFUNC GLOB_BRACE GLOB_ERR
GLOB_LIMIT GLOB_MARK GLOB_NOCASE GLOB_NOCHECK GLOB_NOMAGIC
GLOB_NOSORT GLOB_NOSPACE GLOB_QUOTE GLOB_TILDE),
{name=>"GLOB_ERROR", macro=>["#ifdef GLOB_ERROR\n\tdMY_CXT;\n\n","#endif\n"]}],
BREAKOUT_AT => 8,
);
--- NEW FILE: Glob.xs ---
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "bsd_glob.h"
#define MY_CXT_KEY "File::Glob::_guts" XS_VERSION
typedef struct {
int x_GLOB_ERROR;
} my_cxt_t;
START_MY_CXT
#define GLOB_ERROR (MY_CXT.x_GLOB_ERROR)
#include "const-c.inc"
#ifdef WIN32
#define errfunc NULL
#else
static int
errfunc(const char *foo, int bar) {
return !(bar == EACCES || bar == ENOENT || bar == ENOTDIR);
}
#endif
MODULE = File::Glob PACKAGE = File::Glob
BOOT:
{
MY_CXT_INIT;
}
void
doglob(pattern,...)
char *pattern
PROTOTYPE: $;$
PREINIT:
glob_t pglob;
int i;
int retval;
int flags = 0;
SV *tmp;
PPCODE:
{
dMY_CXT;
/* allow for optional flags argument */
if (items > 1) {
flags = (int) SvIV(ST(1));
}
/* call glob */
retval = bsd_glob(pattern, flags, errfunc, &pglob);
GLOB_ERROR = retval;
/* return any matches found */
EXTEND(sp, pglob.gl_pathc);
for (i = 0; i < pglob.gl_pathc; i++) {
/* printf("# bsd_glob: %s\n", pglob.gl_pathv[i]); */
tmp = sv_2mortal(newSVpvn(pglob.gl_pathv[i],
strlen(pglob.gl_pathv[i])));
TAINT;
SvTAINT(tmp);
PUSHs(tmp);
}
bsd_globfree(&pglob);
}
INCLUDE: const-xs.inc
--- NEW FILE: Changes ---
Revision history for Perl extension File::Glob
0.00 Tue Dec 17 10:51:33 1996
- original version; created by h2xs 1.16
0.90 Tue Dec 17 13:58:32 MST 1996
- implemented first pass access to glob(3),
but it's clumsy and it looks like it leaks
memory.
0.91 Thu Sep 4 08:43:55 CDT 1997
- included CORE/config.h portability macros
- s/glob/bsd_glob/ to avoid calling and including the
system's glob stuff
- added GLOB_DEBUG for (surprise!) glob debugging
- tainted all filenames returned from &Glob::BSD::glob
0.92 Tue Sep 30 08:31:57 CDT 1997
- only use lstat if HAS_LSTAT is defined
- renamed the glob flags to GLOB_*
- added GLOB_CSH convenience macro for csh(1) globbing
These changes thanks to Hans Mulder <hansm at icgned.nl>
- fixed an incompatibility with csh(1) globbing where a
pattern like {A*,b,c} wouldn't expand properly
- various compatibility changes
- fixed and added tests
0.93 Wed Jul 1 10:39:47 CDT 1998
- renamed module to File::BSDGlob
- enabled 'globally' import directive to override the core
glob
- added Sarathy's tests for File::DosGlob
0.99 Tue Oct 12 06:42:02 PDT 1999
- renamed module to File::Glob for incorporation into the
Perl source distribution
- ansified prototypes
- s/struct stat/Stat_t/
- split on spaces to make <*.c *.h> work (for compatibility)
0.991 Tue Oct 26 09:48:00 BST 1999
- Add case-insensitive matching (GLOB_NOCASE)
- Make glob_csh case insensitive by default on Win32, VMS,
OS/2, DOS, RISC OS, and Mac OS
- Add support for :case and :nocase tags
- Hack to make patterns like C:* work on DOSISH systems
- Add support for either \ or / as separators on DOSISH systems
- Limit effect of \ as a quoting operator on DOSISH systems to
when it precedes one of []{}-~\ (to minimise backslashitis).
0.992 Tue Mar 20 09:25:48 2001
- Add alphabetic sorting for csh compatibility (GLOB_ALPHASORT)
--- NEW FILE: bsd_glob.c ---
/*
* 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.
*
[...1381 lines suppressed...]
/* Extract a C name from a FSSpec. Note that there are
no leading or trailing colons. */
static void
name_f_FSSpec(StrFileName name, FSSpec *spec)
{
unsigned char *nc;
const short len = spec->name[0];
short i;
/* FSSpec.name is a Pascal string,
convert it to C ... */
nc = name;
for (i=1; i<=len; i++) {
*nc++ = spec->name[i];
}
*nc = BG_EOS;
}
#endif /* MACOS_TRADITIONAL */
--- NEW FILE: TODO ---
Some issues left to take care of:
o sane ~ handling on non-Unix platforms
Currently on non-Unix, when the glob code encounters a tilde glob
(.e.g ~user/foo or ~/.cshrc), it simply returns that pattern
without doing any expansion (meaning perl will weed it out since a
file of that name isn't likely to exist).
Please, if you have strong feelings about how tilde expansion
should be done on your favorite non-Unix platform(s), submit a
patch.
o path separator handling
Guido's code contains the assumption that the path separator is one
character (byte, probably) in length. Win32 doesn't object to the
true slash as a separator. I imagine MacPerl could change the SEP
cpp #define to ":". I have no idea what it is for VMS. Again, if
you have ideas and especially patches, please feel free to share
them.
--- NEW FILE: Glob.pm ---
package File::Glob;
use strict;
our($VERSION, @ISA, @EXPORT_OK, @EXPORT_FAIL, %EXPORT_TAGS,
$AUTOLOAD, $DEFAULT_FLAGS);
use XSLoader ();
@ISA = qw(Exporter);
# NOTE: The glob() export is only here for compatibility with 5.6.0.
# csh_glob() should not be used directly, unless you know what you're doing.
@EXPORT_OK = qw(
csh_glob
bsd_glob
glob
GLOB_ABEND
GLOB_ALPHASORT
GLOB_ALTDIRFUNC
GLOB_BRACE
GLOB_CSH
GLOB_ERR
GLOB_ERROR
GLOB_LIMIT
GLOB_MARK
GLOB_NOCASE
GLOB_NOCHECK
GLOB_NOMAGIC
GLOB_NOSORT
GLOB_NOSPACE
GLOB_QUOTE
GLOB_TILDE
);
%EXPORT_TAGS = (
'glob' => [ qw(
GLOB_ABEND
GLOB_ALPHASORT
GLOB_ALTDIRFUNC
GLOB_BRACE
GLOB_CSH
GLOB_ERR
GLOB_ERROR
GLOB_LIMIT
GLOB_MARK
GLOB_NOCASE
GLOB_NOCHECK
GLOB_NOMAGIC
GLOB_NOSORT
GLOB_NOSPACE
GLOB_QUOTE
GLOB_TILDE
glob
bsd_glob
) ],
);
$VERSION = '1.05';
sub import {
require Exporter;
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 = $AUTOLOAD) =~ s/.*:://;
my ($error, $val) = constant($constname);
if ($error) {
require Carp;
Carp::croak($error);
}
eval "sub $AUTOLOAD { $val }";
goto &$AUTOLOAD;
}
XSLoader::load 'File::Glob', $VERSION;
# Preloaded methods go here.
sub GLOB_ERROR {
return (constant('GLOB_ERROR'))[1];
}
sub GLOB_CSH () {
GLOB_BRACE()
| GLOB_NOMAGIC()
| GLOB_QUOTE()
| GLOB_TILDE()
| GLOB_ALPHASORT()
}
$DEFAULT_FLAGS = GLOB_CSH();
if ($^O =~ /^(?:MSWin32|VMS|os2|dos|riscos|MacOS)$/) {
$DEFAULT_FLAGS |= GLOB_NOCASE();
}
# Autoload methods go after =cut, and are processed by the autosplit program.
sub bsd_glob {
my ($pat,$flags) = @_;
$flags = $DEFAULT_FLAGS if @_ < 2;
return doglob($pat,$flags);
}
# File::Glob::glob() is deprecated because its prototype is different from
# CORE::glob() (use bsd_glob() instead)
sub glob {
splice @_, 1; # don't pass PL_glob_index as flags!
goto &bsd_glob;
}
## 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
$pat =~ s/^\s+//; # Protect against empty elements in
$pat =~ s/\s+$//; # things like < *.c> and <*.c >.
# These alone shouldn't trigger ParseWords.
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 = bsd_glob('*.[ch]');
$homedir = bsd_glob('~gnat', GLOB_TILDE | GLOB_ERR);
if (GLOB_ERROR) {
# an error occurred reading $homedir
}
## override the core glob (CORE::glob() does this automatically
## by default anyway, since v5.6.0)
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}>;
## glob on all files in home directory
use File::Glob ':globally';
my @sources = <~gnat/*>;
=head1 DESCRIPTION
The glob angle-bracket operator C<< <> >> is a pathname generator that
implements the rules for file name pattern matching used by Unix-like shells
such as the Bourne shell or C shell.
File::Glob::bsd_glob() implements the FreeBSD glob(3) routine, which is
a superset of the POSIX glob() (described in IEEE Std 1003.2 "POSIX.2").
bsd_glob() 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.
Since v5.6.0, Perl's CORE::glob() is implemented in terms of bsd_glob().
Note that they don't share the same prototype--CORE::glob() only accepts
a single argument. Due to historical reasons, CORE::glob() will also
split its argument on whitespace, treating it as multiple patterns,
whereas bsd_glob() considers them as one pattern.
=head2 META CHARACTERS
\ Quote the next metacharacter
[] Character class
{} Multiple pattern
* Match any string of characters
? Match any single character
~ User name home directory
The metanotation C<a{b,c,d}e> is a shorthand for C<abe ace ade>. Left to
right order is preserved, with results of matches being sorted separately
at a low level to preserve this order. As a special case C<{>, C<}>, and
C<{}> are passed undisturbed.
=head2 POSIX FLAGS
The POSIX defined flags for bsd_glob() are:
=over 4
=item C<GLOB_ERR>
Force bsd_glob() to return an error when it encounters a directory it
cannot open or read. Ordinarily bsd_glob() continues to find matches.
=item C<GLOB_LIMIT>
Make bsd_glob() return an error (GLOB_NOSPACE) when the pattern expands
to a size bigger than the system constant C<ARG_MAX> (usually found in
limits.h). If your system does not define this constant, bsd_glob() uses
C<sysconf(_SC_ARG_MAX)> or C<_POSIX_ARG_MAX> where available (in that
order). You can inspect these values using the standard C<POSIX>
extension.
=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 bsd_glob() treat case differences as not significant.
=item C<GLOB_NOCHECK>
If the pattern does not match any pathname, then bsd_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 bsd_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 | GLOB_ALPHASORT>.
=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.
The following flag has been added in the Perl implementation for
csh compatibility:
=over 4
=item C<GLOB_ALPHASORT>
If C<GLOB_NOSORT> is not in effect, sort filenames is alphabetical
order (case does not matter) rather than in ASCII order.
=back
=head1 DIAGNOSTICS
bsd_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 bsd_glob() has found some matching paths, but is
interrupted by an error, it will return a list of filenames B<and>
set &File::Glob::ERROR.
Note that bsd_glob() deviates from POSIX and FreeBSD glob(3) behaviour
by not considering C<ENOENT> and C<ENOTDIR> as errors - bsd_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<bsd_glob("a* b*")>, you should
probably throw them in a set as in C<bsd_glob("{a*,b*}")>. This is because
the argument to bsd_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.
=item *
Mac OS (Classic) users should note a few differences. Since
Mac OS is not Unix, when the glob code encounters a tilde glob (e.g.
~user) and the C<GLOB_TILDE> flag is used, it simply returns that
pattern without doing any expansion.
Glob on Mac OS is case-insensitive by default (if you don't use any
flags). If you specify any flags at all and still want glob
to be case-insensitive, you must include C<GLOB_NOCASE> in the flags.
The path separator is ':' (aka colon), not '/' (aka slash). Mac OS users
should be careful about specifying relative pathnames. While a full path
always begins with a volume name, a relative pathname should always
begin with a ':'. If specifying a volume name only, a trailing ':' is
required.
The specification of pathnames in glob patterns adheres to the usual Mac
OS conventions: The path separator is a colon ':', not a slash '/'. A
full path always begins with a volume name. A relative pathname on Mac
OS must always begin with a ':', except when specifying a file or
directory name in the current working directory, where the leading colon
is optional. If specifying a volume name only, a trailing ':' is
required. Due to these rules, a glob like E<lt>*:E<gt> will find all
mounted volumes, while a glob like E<lt>*E<gt> or E<lt>:*E<gt> will find
all files and directories in the current directory.
Note that updirs in the glob pattern are resolved before the matching begins,
i.e. a pattern like "*HD:t?p::a*" will be matched as "*HD:a*". Note also,
that a single trailing ':' in the pattern is ignored (unless it's a volume
name pattern like "*HD:"), i.e. a glob like E<lt>:*:E<gt> will find both
directories I<and> files (and not, as one might expect, only directories).
You can, however, use the C<GLOB_MARK> flag to distinguish (without a file
test) directory names from file names.
If the C<GLOB_MARK> flag is set, all directory paths will have a ':' appended.
Since a directory like 'lib:' is I<not> a valid I<relative> path on Mac OS,
both a leading and a trailing colon will be added, when the directory name in
question doesn't contain any colons (e.g. 'lib' becomes ':lib:').
=back
=head1 SEE ALSO
L<perlfunc/glob>, glob(3)
=head1 AUTHOR
The Perl interface was written by Nathan Torkington E<lt>gnat at frii.comE<gt>,
and is released under the artistic license. Further modifications were
made by Greg Bacon E<lt>gbacon at cs.uah.eduE<gt>, Gurusamy Sarathy
E<lt>gsar at activestate.comE<gt>, and Thomas Wegner
E<lt>wegner_thomas at yahoo.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
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