Commit | Line | Data |
---|---|---|
270d1e39 GS |
1 | package File::Spec::OS2; |
2 | ||
270d1e39 | 3 | use strict; |
b4296952 | 4 | use vars qw(@ISA $VERSION); |
cbc7acb0 | 5 | require File::Spec::Unix; |
b4296952 | 6 | |
6c34c321 | 7 | $VERSION = '3.30'; |
486bcc50 | 8 | $VERSION = eval $VERSION; |
b4296952 | 9 | |
270d1e39 GS |
10 | @ISA = qw(File::Spec::Unix); |
11 | ||
cbc7acb0 JD |
12 | sub devnull { |
13 | return "/dev/nul"; | |
14 | } | |
270d1e39 | 15 | |
46726cbe CB |
16 | sub case_tolerant { |
17 | return 1; | |
18 | } | |
19 | ||
270d1e39 | 20 | sub file_name_is_absolute { |
cbc7acb0 | 21 | my ($self,$file) = @_; |
1b1e14d3 | 22 | return scalar($file =~ m{^([a-z]:)?[\\/]}is); |
270d1e39 GS |
23 | } |
24 | ||
25 | sub path { | |
270d1e39 GS |
26 | my $path = $ENV{PATH}; |
27 | $path =~ s:\\:/:g; | |
cbc7acb0 JD |
28 | my @path = split(';',$path); |
29 | foreach (@path) { $_ = '.' if $_ eq '' } | |
30 | return @path; | |
270d1e39 GS |
31 | } |
32 | ||
0fab864c | 33 | sub _cwd { |
3f528443 IZ |
34 | # In OS/2 the "require Cwd" is unnecessary bloat. |
35 | return Cwd::sys_cwd(); | |
36 | } | |
37 | ||
cbc7acb0 JD |
38 | my $tmpdir; |
39 | sub tmpdir { | |
40 | return $tmpdir if defined $tmpdir; | |
dfa4e5d3 RGS |
41 | my @d = @ENV{qw(TMPDIR TEMP TMP)}; # function call could autovivivy |
42 | $tmpdir = $_[0]->_tmpdir( @d, '/tmp', '/' ); | |
99804bbb GS |
43 | } |
44 | ||
638113eb JH |
45 | sub catdir { |
46 | my $self = shift; | |
47 | my @args = @_; | |
48 | foreach (@args) { | |
49 | tr[\\][/]; | |
50 | # append a backslash to each argument unless it has one there | |
51 | $_ .= "/" unless m{/$}; | |
52 | } | |
53 | return $self->canonpath(join('', @args)); | |
54 | } | |
55 | ||
f1e20921 IZ |
56 | sub canonpath { |
57 | my ($self,$path) = @_; | |
bf7c0a3d SP |
58 | return unless defined $path; |
59 | ||
f1e20921 IZ |
60 | $path =~ s/^([a-z]:)/\l$1/s; |
61 | $path =~ s|\\|/|g; | |
62 | $path =~ s|([^/])/+|$1/|g; # xx////xx -> xx/xx | |
63 | $path =~ s|(/\.)+/|/|g; # xx/././xx -> xx/xx | |
64 | $path =~ s|^(\./)+(?=[^/])||s; # ./xx -> xx | |
65 | $path =~ s|/\Z(?!\n)|| | |
66 | unless $path =~ m#^([a-z]:)?/\Z(?!\n)#si;# xx/ -> xx | |
638113eb JH |
67 | $path =~ s{^/\.\.$}{/}; # /.. -> / |
68 | 1 while $path =~ s{^/\.\.}{}; # /../xx -> /xx | |
f1e20921 IZ |
69 | return $path; |
70 | } | |
71 | ||
f1e20921 IZ |
72 | |
73 | sub splitpath { | |
74 | my ($self,$path, $nofile) = @_; | |
75 | my ($volume,$directory,$file) = ('','',''); | |
76 | if ( $nofile ) { | |
77 | $path =~ | |
78 | m{^( (?:[a-zA-Z]:|(?:\\\\|//)[^\\/]+[\\/][^\\/]+)? ) | |
79 | (.*) | |
80 | }xs; | |
81 | $volume = $1; | |
82 | $directory = $2; | |
83 | } | |
84 | else { | |
85 | $path =~ | |
86 | m{^ ( (?: [a-zA-Z]: | | |
87 | (?:\\\\|//)[^\\/]+[\\/][^\\/]+ | |
88 | )? | |
89 | ) | |
90 | ( (?:.*[\\\\/](?:\.\.?\Z(?!\n))?)? ) | |
91 | (.*) | |
92 | }xs; | |
93 | $volume = $1; | |
94 | $directory = $2; | |
95 | $file = $3; | |
96 | } | |
97 | ||
98 | return ($volume,$directory,$file); | |
99 | } | |
100 | ||
101 | ||
f1e20921 IZ |
102 | sub splitdir { |
103 | my ($self,$directories) = @_ ; | |
104 | split m|[\\/]|, $directories, -1; | |
105 | } | |
106 | ||
107 | ||
f1e20921 IZ |
108 | sub catpath { |
109 | my ($self,$volume,$directory,$file) = @_; | |
110 | ||
111 | # If it's UNC, make sure the glue separator is there, reusing | |
112 | # whatever separator is first in the $volume | |
113 | $volume .= $1 | |
114 | if ( $volume =~ m@^([\\/])[\\/][^\\/]+[\\/][^\\/]+\Z(?!\n)@s && | |
115 | $directory =~ m@^[^\\/]@s | |
116 | ) ; | |
117 | ||
118 | $volume .= $directory ; | |
119 | ||
120 | # If the volume is not just A:, make sure the glue separator is | |
121 | # there, reusing whatever separator is first in the $volume if possible. | |
122 | if ( $volume !~ m@^[a-zA-Z]:\Z(?!\n)@s && | |
123 | $volume =~ m@[^\\/]\Z(?!\n)@ && | |
124 | $file =~ m@[^\\/]@ | |
125 | ) { | |
126 | $volume =~ m@([\\/])@ ; | |
127 | my $sep = $1 ? $1 : '/' ; | |
128 | $volume .= $sep ; | |
129 | } | |
130 | ||
131 | $volume .= $file ; | |
132 | ||
133 | return $volume ; | |
134 | } | |
135 | ||
136 | ||
137 | sub abs2rel { | |
138 | my($self,$path,$base) = @_; | |
139 | ||
140 | # Clean up $path | |
141 | if ( ! $self->file_name_is_absolute( $path ) ) { | |
142 | $path = $self->rel2abs( $path ) ; | |
143 | } else { | |
144 | $path = $self->canonpath( $path ) ; | |
145 | } | |
146 | ||
147 | # Figure out the effective $base and clean it up. | |
148 | if ( !defined( $base ) || $base eq '' ) { | |
0fab864c | 149 | $base = $self->_cwd(); |
f1e20921 IZ |
150 | } elsif ( ! $self->file_name_is_absolute( $base ) ) { |
151 | $base = $self->rel2abs( $base ) ; | |
152 | } else { | |
153 | $base = $self->canonpath( $base ) ; | |
154 | } | |
155 | ||
156 | # Split up paths | |
638113eb JH |
157 | my ( $path_volume, $path_directories, $path_file ) = $self->splitpath( $path, 1 ) ; |
158 | my ( $base_volume, $base_directories ) = $self->splitpath( $base, 1 ) ; | |
159 | return $path unless $path_volume eq $base_volume; | |
f1e20921 IZ |
160 | |
161 | # Now, remove all leading components that are the same | |
162 | my @pathchunks = $self->splitdir( $path_directories ); | |
163 | my @basechunks = $self->splitdir( $base_directories ); | |
164 | ||
165 | while ( @pathchunks && | |
166 | @basechunks && | |
167 | lc( $pathchunks[0] ) eq lc( $basechunks[0] ) | |
168 | ) { | |
169 | shift @pathchunks ; | |
170 | shift @basechunks ; | |
171 | } | |
172 | ||
173 | # No need to catdir, we know these are well formed. | |
174 | $path_directories = CORE::join( '/', @pathchunks ); | |
175 | $base_directories = CORE::join( '/', @basechunks ); | |
176 | ||
177 | # $base_directories now contains the directories the resulting relative | |
178 | # path must ascend out of before it can descend to $path_directory. So, | |
179 | # replace all names with $parentDir | |
180 | ||
181 | #FA Need to replace between backslashes... | |
182 | $base_directories =~ s|[^\\/]+|..|g ; | |
183 | ||
184 | # Glue the two together, using a separator if necessary, and preventing an | |
185 | # empty result. | |
186 | ||
187 | #FA Must check that new directories are not empty. | |
188 | if ( $path_directories ne '' && $base_directories ne '' ) { | |
189 | $path_directories = "$base_directories/$path_directories" ; | |
190 | } else { | |
191 | $path_directories = "$base_directories$path_directories" ; | |
192 | } | |
193 | ||
194 | return $self->canonpath( | |
195 | $self->catpath( "", $path_directories, $path_file ) | |
196 | ) ; | |
197 | } | |
198 | ||
199 | ||
200 | sub rel2abs { | |
201 | my ($self,$path,$base ) = @_; | |
202 | ||
203 | if ( ! $self->file_name_is_absolute( $path ) ) { | |
204 | ||
205 | if ( !defined( $base ) || $base eq '' ) { | |
0fab864c | 206 | $base = $self->_cwd(); |
f1e20921 IZ |
207 | } |
208 | elsif ( ! $self->file_name_is_absolute( $base ) ) { | |
209 | $base = $self->rel2abs( $base ) ; | |
210 | } | |
211 | else { | |
212 | $base = $self->canonpath( $base ) ; | |
213 | } | |
214 | ||
215 | my ( $path_directories, $path_file ) = | |
216 | ($self->splitpath( $path, 1 ))[1,2] ; | |
217 | ||
218 | my ( $base_volume, $base_directories ) = | |
219 | $self->splitpath( $base, 1 ) ; | |
220 | ||
221 | $path = $self->catpath( | |
222 | $base_volume, | |
223 | $self->catdir( $base_directories, $path_directories ), | |
224 | $path_file | |
225 | ) ; | |
226 | } | |
227 | ||
228 | return $self->canonpath( $path ) ; | |
229 | } | |
230 | ||
270d1e39 GS |
231 | 1; |
232 | __END__ | |
233 | ||
234 | =head1 NAME | |
235 | ||
236 | File::Spec::OS2 - methods for OS/2 file specs | |
237 | ||
238 | =head1 SYNOPSIS | |
239 | ||
cbc7acb0 | 240 | require File::Spec::OS2; # Done internally by File::Spec if needed |
270d1e39 GS |
241 | |
242 | =head1 DESCRIPTION | |
243 | ||
72f15715 T |
244 | See L<File::Spec> and L<File::Spec::Unix>. This package overrides the |
245 | implementation of these methods, not the semantics. | |
95fb0f99 KW |
246 | |
247 | Amongst the changes made for OS/2 are... | |
248 | ||
249 | =over 4 | |
250 | ||
251 | =item tmpdir | |
252 | ||
253 | Modifies the list of places temp directory information is looked for. | |
254 | ||
255 | $ENV{TMPDIR} | |
256 | $ENV{TEMP} | |
257 | $ENV{TMP} | |
258 | /tmp | |
259 | / | |
260 | ||
261 | =item splitpath | |
262 | ||
263 | Volumes can be drive letters or UNC sharenames (\\server\share). | |
264 | ||
265 | =back | |
266 | ||
99f36a73 RGS |
267 | =head1 COPYRIGHT |
268 | ||
269 | Copyright (c) 2004 by the Perl 5 Porters. All rights reserved. | |
270 | ||
271 | This program is free software; you can redistribute it and/or modify | |
272 | it under the same terms as Perl itself. | |
273 | ||
95fb0f99 | 274 | =cut |