134 lines
2.5 KiB
Perl
134 lines
2.5 KiB
Perl
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package attr;
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use locale;
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use strict;
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use Data::Dumper;
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our $pos_re = qr/(?:[[:upper:]]+)/;
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our $attr_re = qr/(?:[[:upper:]]+)/;
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our $val_re = qr/(?:[[:lower:][:digit:]+?!*-]|<[^>\n]+>)/;
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our $av_re = qr/(?:$attr_re$val_re+)/;
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our $avlist_re = qr/(?:$av_re+)/;
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our $cat_re = qr/(?:$pos_re(?:\/$avlist_re)?)/;
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sub match(\@\@)
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{
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my ($cat1,$avs1)= @{shift @_};
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my ($cat2,$avs2)= @{shift @_};
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if($cat1 ne $cat2 && $cat1 ne '*' && $cat2 ne '*')
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{
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return 0;
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}
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else
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{
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ATTR:for my $attr (keys %$avs1)
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{
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if(exists $avs2->{$attr})
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{
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for my $val (keys %{$avs1->{$attr}})
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{
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next ATTR if $avs2->{$attr}->{$val};
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}
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return 0;
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last ATTR;
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}
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}
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}
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return 1;
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}
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sub agree(\@\@$)
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{
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my $val1 = $_[0]->[1]->{$_[2]};
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my $val2 = $_[1]->[1]->{$_[2]};
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return 1 if !$val1 || !$val2;
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for my $v (keys %$val1)
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{
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return 1 if exists $val2->{$v};
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}
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return 0;
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}
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# funkcja parse
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# arg: deskrypcja
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# warto<74><6F>: referencja do tablicy [<cat>, <avs>],
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# gdzie <avs> jest referencja do hasza, zawierajacego pary
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# atrybut=>hasz warto<74>ci (pary warto<74><6F>=>1), czyli np.
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# [
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# 'ADJ',
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# {
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# 'KOLEDZY' => {
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# '<alojzy>' => 1,
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# '<karol>' => 1,
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# '<jan>' => 1
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# },
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# 'C' => {
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# 'p' => 1,
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# 'a' => 1,
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# 'i' => 1
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# },
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# 'N' => {
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# 'p' => 1
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# }
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# }
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# ];
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sub parse ($)
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{
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my ($dstr)=@_;
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my $avs={};
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my ($cat,$attrlist) = split '/', $dstr;
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ATTR:
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# while( $attrlist =~ /([[:upper:]]+)((?:[[:lower:][:digit:]+?!*-]|<[^>\n]+>)+)/g )
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while( $attrlist =~ /($attr_re)($val_re+)/g )
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{
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my ($attrstr,$valstr)=($1,$2);
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my %vals;
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while($valstr =~ /$val_re/g)
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{
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my $val = $&;
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next ATTR if $val eq '*';
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$val =~ s/^<([[:lower:]])>$/$1/;
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$vals{$val}=1;
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}
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$avs->{$attrstr} = \%vals; # dlaczego to dziala? %vals jest lokalne
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}
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[$cat, $avs];
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}
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# funkcja unparse
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# arg: jak warto<74><6F> parse
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# warto<74><6F>: deskrypcja - napis
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sub unparse (\@)
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{
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my ($cat,$avs)= @{shift @_};
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my $dstr=$cat;
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my @attrs = keys %$avs;
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if(@attrs)
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{
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$dstr .= '/';
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for my $attr ( sort @attrs )
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{
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$dstr .= $attr . (join '', sort keys %{$avs->{$attr}});
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}
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}
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$dstr;
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}
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sub canonize ($)
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{
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unparse @{parse @_[0]} ;
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}
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1;
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