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#!perl -w
# use strict fails
#Can't use string ("main::glob") as a symbol ref while "strict refs" in use at /usr/lib/perl5/5.005/File/DosGlob.pm line 191.
#
# Documentation at the __END__
#
package File::DosGlob;
our $VERSION = '1.01';
use strict;
use warnings;
sub doglob {
my $cond = shift;
my @retval = ();
#print "doglob: ", join('|', @_), "\n";
OUTER:
for my $pat (@_) {
my @matched = ();
my @globdirs = ();
my $head = '.';
my $sepchr = '/';
my $tail;
next OUTER unless defined $pat and $pat ne '';
# if arg is within quotes strip em and do no globbing
if ($pat =~ /^"(.*)"\z/s) {
$pat = $1;
if ($cond eq 'd') { push(@retval, $pat) if -d $pat }
else { push(@retval, $pat) if -e $pat }
next OUTER;
}
# wildcards with a drive prefix such as h:*.pm must be changed
# to h:./*.pm to expand correctly
if ($pat =~ m|^([A-Za-z]:)[^/\\]|s) {
substr($pat,0,2) = $1 . "./";
}
if ($pat =~ m|^(.*)([\\/])([^\\/]*)\z|s) {
($head, $sepchr, $tail) = ($1,$2,$3);
#print "div: |$head|$sepchr|$tail|\n";
push (@retval, $pat), next OUTER if $tail eq '';
if ($head =~ /[*?]/) {
@globdirs = doglob('d', $head);
push(@retval, doglob($cond, map {"$_$sepchr$tail"} @globdirs)),
next OUTER if @globdirs;
}
$head .= $sepchr if $head eq '' or $head =~ /^[A-Za-z]:\z/s;
$pat = $tail;
}
#
# If file component has no wildcards, we can avoid opendir
unless ($pat =~ /[*?]/) {
$head = '' if $head eq '.';
$head .= $sepchr unless $head eq '' or substr($head,-1) eq $sepchr;
$head .= $pat;
if ($cond eq 'd') { push(@retval,$head) if -d $head }
else { push(@retval,$head) if -e $head }
next OUTER;
}
opendir(D, $head) or next OUTER;
my @leaves = readdir D;
closedir D;
$head = '' if $head eq '.';
$head .= $sepchr unless $head eq '' or substr($head,-1) eq $sepchr;
# escape regex metachars but not glob chars
$pat =~ s:([].+^\-\${}[|]):\\$1:g;
# and convert DOS-style wildcards to regex
$pat =~ s/\*/.*/g;
$pat =~ s/\?/.?/g;
#print "regex: '$pat', head: '$head'\n";
my $matchsub = sub { $_[0] =~ m|^$pat\z|is };
INNER:
for my $e (@leaves) {
next INNER if $e eq '.' or $e eq '..';
next INNER if $cond eq 'd' and ! -d "$head$e";
push(@matched, "$head$e"), next INNER if &$matchsub($e);
#
# [DOS compatibility special case]
# Failed, add a trailing dot and try again, but only
# if name does not have a dot in it *and* pattern
# has a dot *and* name is shorter than 9 chars.
#
if (index($e,'.') == -1 and length($e) < 9
and index($pat,'\\.') != -1) {
push(@matched, "$head$e"), next INNER if &$matchsub("$e.");
}
}
push @retval, @matched if @matched;
}
return @retval;
}
#
# Do DOS-like globbing on Mac OS
#
sub doglob_Mac {
my $cond = shift;
my @retval = ();
#print "doglob_Mac: ", join('|', @_), "\n";
OUTER:
for my $arg (@_) {
local $_ = $arg;
my @matched = ();
my @globdirs = ();
my $head = ':';
my $not_esc_head = $head;
my $sepchr = ':';
next OUTER unless defined $_ and $_ ne '';
# if arg is within quotes strip em and do no globbing
if (/^"(.*)"\z/s) {
$_ = $1;
# $_ may contain escaped metachars '\*', '\?' and '\'
my $not_esc_arg = $_;
$not_esc_arg =~ s/\\([*?\\])/$1/g;
if ($cond eq 'd') { push(@retval, $not_esc_arg) if -d $not_esc_arg }
else { push(@retval, $not_esc_arg) if -e $not_esc_arg }
next OUTER;
}
if (m|^(.*?)(:+)([^:]*)\z|s) { # note: $1 is not greedy
my $tail;
($head, $sepchr, $tail) = ($1,$2,$3);
#print "div: |$head|$sepchr|$tail|\n";
push (@retval, $_), next OUTER if $tail eq '';
#
# $head may contain escaped metachars '\*' and '\?'
my $tmp_head = $head;
# if a '*' or '?' is preceded by an odd count of '\', temporary delete
# it (and its preceding backslashes), i.e. don't treat '\*' and '\?' as
# wildcards
$tmp_head =~ s/(\\*)([*?])/$2 x ((length($1) + 1) % 2)/eg;
if ($tmp_head =~ /[*?]/) { # if there are wildcards ...
@globdirs = doglob_Mac('d', $head);
push(@retval, doglob_Mac($cond, map {"$_$sepchr$tail"} @globdirs)),
next OUTER if @globdirs;
}
$head .= $sepchr;
$not_esc_head = $head;
# unescape $head for file operations
$not_esc_head =~ s/\\([*?\\])/$1/g;
$_ = $tail;
}
#
# If file component has no wildcards, we can avoid opendir
my $tmp_tail = $_;
# if a '*' or '?' is preceded by an odd count of '\', temporary delete
# it (and its preceding backslashes), i.e. don't treat '\*' and '\?' as
# wildcards
$tmp_tail =~ s/(\\*)([*?])/$2 x ((length($1) + 1) % 2)/eg;
unless ($tmp_tail =~ /[*?]/) { # if there are wildcards ...
$not_esc_head = $head = '' if $head eq ':';
my $not_esc_tail = $_;
# unescape $head and $tail for file operations
$not_esc_tail =~ s/\\([*?\\])/$1/g;
$head .= $_;
$not_esc_head .= $not_esc_tail;
if ($cond eq 'd') { push(@retval,$head) if -d $not_esc_head }
else { push(@retval,$head) if -e $not_esc_head }
next OUTER;
}
#print "opendir($not_esc_head)\n";
opendir(D, $not_esc_head) or next OUTER;
my @leaves = readdir D;
closedir D;
# escape regex metachars but not '\' and glob chars '*', '?'
$_ =~ s:([].+^\-\${}[|]):\\$1:g;
# and convert DOS-style wildcards to regex,
# but only if they are not escaped
$_ =~ s/(\\*)([*?])/$1 . ('.' x ((length($1) + 1) % 2)) . $2/eg;
#print "regex: '$_', head: '$head', unescaped head: '$not_esc_head'\n";
my $matchsub = eval 'sub { $_[0] =~ m|^' . $_ . '\\z|ios }';
warn($@), next OUTER if $@;
INNER:
for my $e (@leaves) {
next INNER if $e eq '.' or $e eq '..';
next INNER if $cond eq 'd' and ! -d "$not_esc_head$e";
if (&$matchsub($e)) {
my $leave = (($not_esc_head eq ':') && (-f "$not_esc_head$e")) ?
"$e" : "$not_esc_head$e";
#
# On Mac OS, the two glob metachars '*' and '?' and the escape
# char '\' are valid characters for file and directory names.
# We have to escape and treat them specially.
$leave =~ s|([*?\\])|\\$1|g;
push(@matched, $leave);
next INNER;
}
}
push @retval, @matched if @matched;
}
return @retval;
}
#
# _expand_volume() will only be used on Mac OS (Classic):
# Takes an array of original patterns as argument and returns an array of
# possibly modified patterns. Each original pattern is processed like
# that:
# + If there's a volume name in the pattern, we push a separate pattern
# for each mounted volume that matches (with '*', '?' and '\' escaped).
# + If there's no volume name in the original pattern, it is pushed
# unchanged.
# Note that the returned array of patterns may be empty.
#
sub _expand_volume {
require MacPerl; # to be verbose
my @pat = @_;
my @new_pat = ();
my @FSSpec_Vols = MacPerl::Volumes();
my @mounted_volumes = ();
foreach my $spec_vol (@FSSpec_Vols) {
# push all mounted volumes into array
push @mounted_volumes, MacPerl::MakePath($spec_vol);
}
#print "mounted volumes: |@mounted_volumes|\n";
while (@pat) {
my $pat = shift @pat;
if ($pat =~ /^([^:]+:)(.*)\z/) { # match a volume name?
my $vol_pat = $1;
my $tail = $2;
#
# escape regex metachars but not '\' and glob chars '*', '?'
$vol_pat =~ s:([].+^\-\${}[|]):\\$1:g;
# and convert DOS-style wildcards to regex,
# but only if they are not escaped
$vol_pat =~ s/(\\*)([*?])/$1 . ('.' x ((length($1) + 1) % 2)) . $2/eg;
#print "volume regex: '$vol_pat' \n";
foreach my $volume (@mounted_volumes) {
if ($volume =~ m|^$vol_pat\z|ios) {
#
# On Mac OS, the two glob metachars '*' and '?' and the
# escape char '\' are valid characters for volume names.
# We have to escape and treat them specially.
$volume =~ s|([*?\\])|\\$1|g;
push @new_pat, $volume . $tail;
}
}
} else { # no volume name in pattern, push original pattern
push @new_pat, $pat;
}
}
return @new_pat;
}
#
# _preprocess_pattern() will only be used on Mac OS (Classic):
# Resolves any updirs in the pattern. Removes a single trailing colon
# from the pattern, unless it's a volume name pattern like "*HD:"
#
sub _preprocess_pattern {
my @pat = @_;
foreach my $p (@pat) {
my $proceed;
# resolve any updirs, e.g. "*HD:t?p::a*" -> "*HD:a*"
do {
$proceed = ($p =~ s/^(.*):[^:]+::(.*?)\z/$1:$2/);
} while ($proceed);
# remove a single trailing colon, e.g. ":*:" -> ":*"
$p =~ s/:([^:]+):\z/:$1/;
}
return @pat;
}
#
# _un_escape() will only be used on Mac OS (Classic):
# Unescapes a list of arguments which may contain escaped
# metachars '*', '?' and '\'.
#
sub _un_escape {
foreach (@_) {
s/\\([*?\\])/$1/g;
}
return @_;
}
#
# this can be used to override CORE::glob in a specific
# package by saying C