Commit | Line | Data |
270d1e39 |
1 | package File::Spec::OS2; |
2 | |
270d1e39 |
3 | use strict; |
b4296952 |
4 | use vars qw(@ISA $VERSION); |
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5 | require File::Spec::Unix; |
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6 | |
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7 | $VERSION = '1.2'; |
b4296952 |
8 | |
270d1e39 |
9 | @ISA = qw(File::Spec::Unix); |
10 | |
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11 | sub devnull { |
12 | return "/dev/nul"; |
13 | } |
270d1e39 |
14 | |
46726cbe |
15 | sub case_tolerant { |
16 | return 1; |
17 | } |
18 | |
270d1e39 |
19 | sub file_name_is_absolute { |
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20 | my ($self,$file) = @_; |
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21 | return scalar($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; |
60598624 |
40 | $tmpdir = $_[0]->_tmpdir( @ENV{qw(TMPDIR TEMP TMP)}, |
07824bd1 |
41 | '/tmp', |
42 | '/' ); |
99804bbb |
43 | } |
44 | |
638113eb |
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 $self->canonpath(join('', @args)); |
54 | } |
55 | |
f1e20921 |
56 | sub canonpath { |
57 | my ($self,$path) = @_; |
58 | $path =~ s/^([a-z]:)/\l$1/s; |
59 | $path =~ s|\\|/|g; |
60 | $path =~ s|([^/])/+|$1/|g; # xx////xx -> xx/xx |
61 | $path =~ s|(/\.)+/|/|g; # xx/././xx -> xx/xx |
62 | $path =~ s|^(\./)+(?=[^/])||s; # ./xx -> xx |
63 | $path =~ s|/\Z(?!\n)|| |
64 | unless $path =~ m#^([a-z]:)?/\Z(?!\n)#si;# xx/ -> xx |
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65 | $path =~ s{^/\.\.$}{/}; # /.. -> / |
66 | 1 while $path =~ s{^/\.\.}{}; # /../xx -> /xx |
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67 | return $path; |
68 | } |
69 | |
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70 | |
71 | sub splitpath { |
72 | my ($self,$path, $nofile) = @_; |
73 | my ($volume,$directory,$file) = ('','',''); |
74 | if ( $nofile ) { |
75 | $path =~ |
76 | m{^( (?:[a-zA-Z]:|(?:\\\\|//)[^\\/]+[\\/][^\\/]+)? ) |
77 | (.*) |
78 | }xs; |
79 | $volume = $1; |
80 | $directory = $2; |
81 | } |
82 | else { |
83 | $path =~ |
84 | m{^ ( (?: [a-zA-Z]: | |
85 | (?:\\\\|//)[^\\/]+[\\/][^\\/]+ |
86 | )? |
87 | ) |
88 | ( (?:.*[\\\\/](?:\.\.?\Z(?!\n))?)? ) |
89 | (.*) |
90 | }xs; |
91 | $volume = $1; |
92 | $directory = $2; |
93 | $file = $3; |
94 | } |
95 | |
96 | return ($volume,$directory,$file); |
97 | } |
98 | |
99 | |
f1e20921 |
100 | sub splitdir { |
101 | my ($self,$directories) = @_ ; |
102 | split m|[\\/]|, $directories, -1; |
103 | } |
104 | |
105 | |
f1e20921 |
106 | sub catpath { |
107 | my ($self,$volume,$directory,$file) = @_; |
108 | |
109 | # If it's UNC, make sure the glue separator is there, reusing |
110 | # whatever separator is first in the $volume |
111 | $volume .= $1 |
112 | if ( $volume =~ m@^([\\/])[\\/][^\\/]+[\\/][^\\/]+\Z(?!\n)@s && |
113 | $directory =~ m@^[^\\/]@s |
114 | ) ; |
115 | |
116 | $volume .= $directory ; |
117 | |
118 | # If the volume is not just A:, make sure the glue separator is |
119 | # there, reusing whatever separator is first in the $volume if possible. |
120 | if ( $volume !~ m@^[a-zA-Z]:\Z(?!\n)@s && |
121 | $volume =~ m@[^\\/]\Z(?!\n)@ && |
122 | $file =~ m@[^\\/]@ |
123 | ) { |
124 | $volume =~ m@([\\/])@ ; |
125 | my $sep = $1 ? $1 : '/' ; |
126 | $volume .= $sep ; |
127 | } |
128 | |
129 | $volume .= $file ; |
130 | |
131 | return $volume ; |
132 | } |
133 | |
134 | |
135 | sub abs2rel { |
136 | my($self,$path,$base) = @_; |
137 | |
138 | # Clean up $path |
139 | if ( ! $self->file_name_is_absolute( $path ) ) { |
140 | $path = $self->rel2abs( $path ) ; |
141 | } else { |
142 | $path = $self->canonpath( $path ) ; |
143 | } |
144 | |
145 | # Figure out the effective $base and clean it up. |
146 | if ( !defined( $base ) || $base eq '' ) { |
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147 | $base = $self->_cwd(); |
f1e20921 |
148 | } elsif ( ! $self->file_name_is_absolute( $base ) ) { |
149 | $base = $self->rel2abs( $base ) ; |
150 | } else { |
151 | $base = $self->canonpath( $base ) ; |
152 | } |
153 | |
154 | # Split up paths |
638113eb |
155 | my ( $path_volume, $path_directories, $path_file ) = $self->splitpath( $path, 1 ) ; |
156 | my ( $base_volume, $base_directories ) = $self->splitpath( $base, 1 ) ; |
157 | return $path unless $path_volume eq $base_volume; |
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158 | |
159 | # Now, remove all leading components that are the same |
160 | my @pathchunks = $self->splitdir( $path_directories ); |
161 | my @basechunks = $self->splitdir( $base_directories ); |
162 | |
163 | while ( @pathchunks && |
164 | @basechunks && |
165 | lc( $pathchunks[0] ) eq lc( $basechunks[0] ) |
166 | ) { |
167 | shift @pathchunks ; |
168 | shift @basechunks ; |
169 | } |
170 | |
171 | # No need to catdir, we know these are well formed. |
172 | $path_directories = CORE::join( '/', @pathchunks ); |
173 | $base_directories = CORE::join( '/', @basechunks ); |
174 | |
175 | # $base_directories now contains the directories the resulting relative |
176 | # path must ascend out of before it can descend to $path_directory. So, |
177 | # replace all names with $parentDir |
178 | |
179 | #FA Need to replace between backslashes... |
180 | $base_directories =~ s|[^\\/]+|..|g ; |
181 | |
182 | # Glue the two together, using a separator if necessary, and preventing an |
183 | # empty result. |
184 | |
185 | #FA Must check that new directories are not empty. |
186 | if ( $path_directories ne '' && $base_directories ne '' ) { |
187 | $path_directories = "$base_directories/$path_directories" ; |
188 | } else { |
189 | $path_directories = "$base_directories$path_directories" ; |
190 | } |
191 | |
192 | return $self->canonpath( |
193 | $self->catpath( "", $path_directories, $path_file ) |
194 | ) ; |
195 | } |
196 | |
197 | |
198 | sub rel2abs { |
199 | my ($self,$path,$base ) = @_; |
200 | |
201 | if ( ! $self->file_name_is_absolute( $path ) ) { |
202 | |
203 | if ( !defined( $base ) || $base eq '' ) { |
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204 | $base = $self->_cwd(); |
f1e20921 |
205 | } |
206 | elsif ( ! $self->file_name_is_absolute( $base ) ) { |
207 | $base = $self->rel2abs( $base ) ; |
208 | } |
209 | else { |
210 | $base = $self->canonpath( $base ) ; |
211 | } |
212 | |
213 | my ( $path_directories, $path_file ) = |
214 | ($self->splitpath( $path, 1 ))[1,2] ; |
215 | |
216 | my ( $base_volume, $base_directories ) = |
217 | $self->splitpath( $base, 1 ) ; |
218 | |
219 | $path = $self->catpath( |
220 | $base_volume, |
221 | $self->catdir( $base_directories, $path_directories ), |
222 | $path_file |
223 | ) ; |
224 | } |
225 | |
226 | return $self->canonpath( $path ) ; |
227 | } |
228 | |
270d1e39 |
229 | 1; |
230 | __END__ |
231 | |
232 | =head1 NAME |
233 | |
234 | File::Spec::OS2 - methods for OS/2 file specs |
235 | |
236 | =head1 SYNOPSIS |
237 | |
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238 | require File::Spec::OS2; # Done internally by File::Spec if needed |
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239 | |
240 | =head1 DESCRIPTION |
241 | |
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242 | See L<File::Spec> and L<File::Spec::Unix>. This package overrides the |
243 | implementation of these methods, not the semantics. |
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244 | |
245 | Amongst the changes made for OS/2 are... |
246 | |
247 | =over 4 |
248 | |
249 | =item tmpdir |
250 | |
251 | Modifies the list of places temp directory information is looked for. |
252 | |
253 | $ENV{TMPDIR} |
254 | $ENV{TEMP} |
255 | $ENV{TMP} |
256 | /tmp |
257 | / |
258 | |
259 | =item splitpath |
260 | |
261 | Volumes can be drive letters or UNC sharenames (\\server\share). |
262 | |
263 | =back |
264 | |
99f36a73 |
265 | =head1 COPYRIGHT |
266 | |
267 | Copyright (c) 2004 by the Perl 5 Porters. All rights reserved. |
268 | |
269 | This program is free software; you can redistribute it and/or modify |
270 | it under the same terms as Perl itself. |
271 | |
95fb0f99 |
272 | =cut |