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package Parse::CPAN::Modlist; |
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use strict; |
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use vars qw($VERSION); |
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use Parse::CPAN::Modlist::Module; |
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$VERSION = '0.9'; |
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=pod |
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=head1 NAME |
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Parse::CPAN::Modlist - Parse 03packages.data.gz |
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=head1 SYNOPSIS |
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use Parse::CPAN::Modlist; |
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my $p = Parse::CPAN::Modlist->new("t/data/03modlist.data"); |
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foreach my $name ($p->modules) { |
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my $module = $p->module($name); |
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print " The module '".$module->name."'". |
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" is written by ".$module->author. |
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" and is described as '".$module->description. |
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"'\n"; |
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} |
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=head1 DESCRIPTION |
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The CPAN module list is a non-comprehensive list of modules on CPAN. |
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Or, more exactly, it's a comprehensive list of B modules on CPAN. |
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http://www.cpan.org/modules/00modlist.long.html has more details. |
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=head1 Methods |
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=cut |
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=head2 new |
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Creates a new C object and parses the data passed in. |
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You can either pass in the path to a (not gzipped) file or the data from an |
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03modlist.data file. |
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=cut |
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sub new { |
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my $class = shift; |
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my $filename = shift; |
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my $self = { }; |
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bless $self, $class; |
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$filename = '03modlist.data' if not defined $filename; |
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if ($filename =~ /File:\s+03modlist.data/) { |
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$self->{_details} = $filename; |
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} else { |
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open(IN, $filename) || die "Failed to read $filename: $!"; |
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$self->{_details} = join '', ; |
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close(IN); |
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} |
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$self->parse; |
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return $self; |
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} |
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=head2 parse |
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Internal method which parses the 03modlist.data file. |
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Called automatically by C. |
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=cut |
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### this builds a hash reference with the structure of the cpan module tree ### |
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sub parse { |
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my $self = shift; |
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my $in = $self->{_details}; |
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### get rid of the comments and the code ### |
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### need a smarter parser, some people have this in their dslip info: |
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# [ |
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# 'Statistics::LTU', |
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# 'R', |
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# 'd', |
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# 'p', |
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# 'O', |
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# '?', |
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# 'Implements Linear Threshold Units', |
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# ...skipping... |
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# "\x{c4}dd \x{fc}ml\x{e4}\x{fc}ts t\x{f6} \x{eb}v\x{eb}r\x{ff}th\x{ef}ng!", |
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# 'BENNIE', |
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# '11' |
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# ], |
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### also, older versions say: |
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### $cols = [....] |
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### and newer versions say: |
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### $CPANPLUS::Modulelist::cols = [...] |
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$in =~ s|.+}\s+(\$(?:CPAN::Modulelist::)?cols)|$1|s; |
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### split '$cols' and '$data' into 2 variables ### |
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my ($ds_one, $ds_two) = split ';', $in, 2; |
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### eval them into existance ### |
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### still not too fond of this solution - kane ### |
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my ($cols, $data); |
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{ #local $@; can't use this, it's buggy -kane |
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$cols = eval $ds_one; |
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die "Error in eval of 03modlist.data source files: $@" if $@; |
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$data = eval $ds_two; |
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die "Error in eval of 03modlist.data source files: $@" if $@; |
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} |
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my $tree = {}; |
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my $primary = "modid"; |
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Parse::CPAN::Modlist::Module->mk_accessors(@$cols); |
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### this comes from CPAN::Modulelist |
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### which is in 03modlist.data.gz |
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for (@$data){ |
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my %hash; |
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@hash{@$cols} = @$_; |
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$hash{'chapterid'} = int($hash{'chapterid'}); |
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$tree->{$hash{$primary}} = bless \%hash, 'Parse::CPAN::Modlist::Module';; |
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} |
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$self->{modules} = $tree; |
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} |
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=head2 module |
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Returns a C object representing |
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the module name passed in or undef if that module is not in the |
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module list. |
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154
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=cut |
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sub module { |
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my $self = shift; |
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my $module = shift; |
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return $self->{modules}->{$module}; |
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} |
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=head2 modules |
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Returns a list of the names of all modules in the module list |
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=cut |
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sub modules { |
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return keys %{$_[0]->{modules}}; |
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} |
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=head1 BUGS |
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None that I know of. |
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178
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=head1 COPYING |
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Distributed under the same terms as Perl itself. |
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182
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=head1 AUTHOR |
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184
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Copyright (c) 2004, |
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186
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Simon Wistow |
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based on code from C by Jos Boumans. |
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190
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=head1 SEE ALSO |
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192
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L, L |
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194
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=cut |
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196
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1; |