Commit | Line | Data |
270d1e39 |
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 | |
07824bd1 |
7 | $VERSION = '1.2'; |
b4296952 |
8 | |
270d1e39 |
9 | @ISA = qw(File::Spec::Unix); |
10 | |
cbc7acb0 |
11 | sub devnull { |
12 | return "/dev/nul"; |
13 | } |
270d1e39 |
14 | |
46726cbe |
15 | sub case_tolerant { |
16 | return 1; |
17 | } |
18 | |
270d1e39 |
19 | sub file_name_is_absolute { |
cbc7acb0 |
20 | my ($self,$file) = @_; |
1b1e14d3 |
21 | return scalar($file =~ m{^([a-z]:)?[\\/]}is); |
270d1e39 |
22 | } |
23 | |
24 | sub path { |
270d1e39 |
25 | my $path = $ENV{PATH}; |
26 | $path =~ s:\\:/:g; |
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27 | my @path = split(';',$path); |
28 | foreach (@path) { $_ = '.' if $_ eq '' } |
29 | return @path; |
270d1e39 |
30 | } |
31 | |
0fab864c |
32 | sub _cwd { |
3f528443 |
33 | # In OS/2 the "require Cwd" is unnecessary bloat. |
34 | return Cwd::sys_cwd(); |
35 | } |
36 | |
cbc7acb0 |
37 | my $tmpdir; |
38 | sub tmpdir { |
39 | return $tmpdir if defined $tmpdir; |
dfa4e5d3 |
40 | my @d = @ENV{qw(TMPDIR TEMP TMP)}; # function call could autovivivy |
41 | $tmpdir = $_[0]->_tmpdir( @d, '/tmp', '/' ); |
99804bbb |
42 | } |
43 | |
638113eb |
44 | sub catdir { |
45 | my $self = shift; |
46 | my @args = @_; |
47 | foreach (@args) { |
48 | tr[\\][/]; |
49 | # append a backslash to each argument unless it has one there |
50 | $_ .= "/" unless m{/$}; |
51 | } |
52 | return $self->canonpath(join('', @args)); |
53 | } |
54 | |
f1e20921 |
55 | sub canonpath { |
56 | my ($self,$path) = @_; |
57 | $path =~ s/^([a-z]:)/\l$1/s; |
58 | $path =~ s|\\|/|g; |
59 | $path =~ s|([^/])/+|$1/|g; # xx////xx -> xx/xx |
60 | $path =~ s|(/\.)+/|/|g; # xx/././xx -> xx/xx |
61 | $path =~ s|^(\./)+(?=[^/])||s; # ./xx -> xx |
62 | $path =~ s|/\Z(?!\n)|| |
63 | unless $path =~ m#^([a-z]:)?/\Z(?!\n)#si;# xx/ -> xx |
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64 | $path =~ s{^/\.\.$}{/}; # /.. -> / |
65 | 1 while $path =~ s{^/\.\.}{}; # /../xx -> /xx |
f1e20921 |
66 | return $path; |
67 | } |
68 | |
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69 | |
70 | sub splitpath { |
71 | my ($self,$path, $nofile) = @_; |
72 | my ($volume,$directory,$file) = ('','',''); |
73 | if ( $nofile ) { |
74 | $path =~ |
75 | m{^( (?:[a-zA-Z]:|(?:\\\\|//)[^\\/]+[\\/][^\\/]+)? ) |
76 | (.*) |
77 | }xs; |
78 | $volume = $1; |
79 | $directory = $2; |
80 | } |
81 | else { |
82 | $path =~ |
83 | m{^ ( (?: [a-zA-Z]: | |
84 | (?:\\\\|//)[^\\/]+[\\/][^\\/]+ |
85 | )? |
86 | ) |
87 | ( (?:.*[\\\\/](?:\.\.?\Z(?!\n))?)? ) |
88 | (.*) |
89 | }xs; |
90 | $volume = $1; |
91 | $directory = $2; |
92 | $file = $3; |
93 | } |
94 | |
95 | return ($volume,$directory,$file); |
96 | } |
97 | |
98 | |
f1e20921 |
99 | sub splitdir { |
100 | my ($self,$directories) = @_ ; |
101 | split m|[\\/]|, $directories, -1; |
102 | } |
103 | |
104 | |
f1e20921 |
105 | sub catpath { |
106 | my ($self,$volume,$directory,$file) = @_; |
107 | |
108 | # If it's UNC, make sure the glue separator is there, reusing |
109 | # whatever separator is first in the $volume |
110 | $volume .= $1 |
111 | if ( $volume =~ m@^([\\/])[\\/][^\\/]+[\\/][^\\/]+\Z(?!\n)@s && |
112 | $directory =~ m@^[^\\/]@s |
113 | ) ; |
114 | |
115 | $volume .= $directory ; |
116 | |
117 | # If the volume is not just A:, make sure the glue separator is |
118 | # there, reusing whatever separator is first in the $volume if possible. |
119 | if ( $volume !~ m@^[a-zA-Z]:\Z(?!\n)@s && |
120 | $volume =~ m@[^\\/]\Z(?!\n)@ && |
121 | $file =~ m@[^\\/]@ |
122 | ) { |
123 | $volume =~ m@([\\/])@ ; |
124 | my $sep = $1 ? $1 : '/' ; |
125 | $volume .= $sep ; |
126 | } |
127 | |
128 | $volume .= $file ; |
129 | |
130 | return $volume ; |
131 | } |
132 | |
133 | |
134 | sub abs2rel { |
135 | my($self,$path,$base) = @_; |
136 | |
137 | # Clean up $path |
138 | if ( ! $self->file_name_is_absolute( $path ) ) { |
139 | $path = $self->rel2abs( $path ) ; |
140 | } else { |
141 | $path = $self->canonpath( $path ) ; |
142 | } |
143 | |
144 | # Figure out the effective $base and clean it up. |
145 | if ( !defined( $base ) || $base eq '' ) { |
0fab864c |
146 | $base = $self->_cwd(); |
f1e20921 |
147 | } elsif ( ! $self->file_name_is_absolute( $base ) ) { |
148 | $base = $self->rel2abs( $base ) ; |
149 | } else { |
150 | $base = $self->canonpath( $base ) ; |
151 | } |
152 | |
153 | # Split up paths |
638113eb |
154 | my ( $path_volume, $path_directories, $path_file ) = $self->splitpath( $path, 1 ) ; |
155 | my ( $base_volume, $base_directories ) = $self->splitpath( $base, 1 ) ; |
156 | return $path unless $path_volume eq $base_volume; |
f1e20921 |
157 | |
158 | # Now, remove all leading components that are the same |
159 | my @pathchunks = $self->splitdir( $path_directories ); |
160 | my @basechunks = $self->splitdir( $base_directories ); |
161 | |
162 | while ( @pathchunks && |
163 | @basechunks && |
164 | lc( $pathchunks[0] ) eq lc( $basechunks[0] ) |
165 | ) { |
166 | shift @pathchunks ; |
167 | shift @basechunks ; |
168 | } |
169 | |
170 | # No need to catdir, we know these are well formed. |
171 | $path_directories = CORE::join( '/', @pathchunks ); |
172 | $base_directories = CORE::join( '/', @basechunks ); |
173 | |
174 | # $base_directories now contains the directories the resulting relative |
175 | # path must ascend out of before it can descend to $path_directory. So, |
176 | # replace all names with $parentDir |
177 | |
178 | #FA Need to replace between backslashes... |
179 | $base_directories =~ s|[^\\/]+|..|g ; |
180 | |
181 | # Glue the two together, using a separator if necessary, and preventing an |
182 | # empty result. |
183 | |
184 | #FA Must check that new directories are not empty. |
185 | if ( $path_directories ne '' && $base_directories ne '' ) { |
186 | $path_directories = "$base_directories/$path_directories" ; |
187 | } else { |
188 | $path_directories = "$base_directories$path_directories" ; |
189 | } |
190 | |
191 | return $self->canonpath( |
192 | $self->catpath( "", $path_directories, $path_file ) |
193 | ) ; |
194 | } |
195 | |
196 | |
197 | sub rel2abs { |
198 | my ($self,$path,$base ) = @_; |
199 | |
200 | if ( ! $self->file_name_is_absolute( $path ) ) { |
201 | |
202 | if ( !defined( $base ) || $base eq '' ) { |
0fab864c |
203 | $base = $self->_cwd(); |
f1e20921 |
204 | } |
205 | elsif ( ! $self->file_name_is_absolute( $base ) ) { |
206 | $base = $self->rel2abs( $base ) ; |
207 | } |
208 | else { |
209 | $base = $self->canonpath( $base ) ; |
210 | } |
211 | |
212 | my ( $path_directories, $path_file ) = |
213 | ($self->splitpath( $path, 1 ))[1,2] ; |
214 | |
215 | my ( $base_volume, $base_directories ) = |
216 | $self->splitpath( $base, 1 ) ; |
217 | |
218 | $path = $self->catpath( |
219 | $base_volume, |
220 | $self->catdir( $base_directories, $path_directories ), |
221 | $path_file |
222 | ) ; |
223 | } |
224 | |
225 | return $self->canonpath( $path ) ; |
226 | } |
227 | |
270d1e39 |
228 | 1; |
229 | __END__ |
230 | |
231 | =head1 NAME |
232 | |
233 | File::Spec::OS2 - methods for OS/2 file specs |
234 | |
235 | =head1 SYNOPSIS |
236 | |
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237 | require File::Spec::OS2; # Done internally by File::Spec if needed |
270d1e39 |
238 | |
239 | =head1 DESCRIPTION |
240 | |
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241 | See L<File::Spec> and L<File::Spec::Unix>. This package overrides the |
242 | implementation of these methods, not the semantics. |
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243 | |
244 | Amongst the changes made for OS/2 are... |
245 | |
246 | =over 4 |
247 | |
248 | =item tmpdir |
249 | |
250 | Modifies the list of places temp directory information is looked for. |
251 | |
252 | $ENV{TMPDIR} |
253 | $ENV{TEMP} |
254 | $ENV{TMP} |
255 | /tmp |
256 | / |
257 | |
258 | =item splitpath |
259 | |
260 | Volumes can be drive letters or UNC sharenames (\\server\share). |
261 | |
262 | =back |
263 | |
99f36a73 |
264 | =head1 COPYRIGHT |
265 | |
266 | Copyright (c) 2004 by the Perl 5 Porters. All rights reserved. |
267 | |
268 | This program is free software; you can redistribute it and/or modify |
269 | it under the same terms as Perl itself. |
270 | |
95fb0f99 |
271 | =cut |