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package PYX::XMLSchema::List; |
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# Pragmas. |
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use strict; |
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use warnings; |
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# Modules. |
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use Class::Utils qw(set_params); |
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use Error::Pure qw(err); |
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use List::Util qw(reduce); |
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use PYX::Parser; |
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use Readonly; |
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# Constants. |
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Readonly::Scalar our $EMPTY_STR => q{}; |
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Readonly::Scalar our $SPACE => q{ }; |
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# Version. |
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our $VERSION = 0.02; |
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# Constructor. |
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sub new { |
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my ($class, @params) = @_; |
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my $self = bless {}, $class; |
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# Output handler. |
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$self->{'output_handler'} = \*STDOUT; |
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# Process params. |
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set_params($self, @params); |
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# PYX::Parser object. |
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$self->{'_pyx_parser'} = PYX::Parser->new( |
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'callbacks' => { |
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'attribute' => \&_call_attribute, |
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'final' => \&_call_final, |
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'start_element' => \&_call_start_element, |
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}, |
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'non_parser_options' => { |
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'schemas' => {}, |
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}, |
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'output_handler' => $self->{'output_handler'}, |
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); |
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# Object. |
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return $self; |
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} |
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# Parse pyx text or array of pyx text. |
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sub parse { |
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my ($self, $pyx, $out) = @_; |
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$self->{'_pyx_parser'}->parse($pyx, $out); |
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return; |
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} |
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# Parse file with pyx text. |
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sub parse_file { |
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my ($self, $file, $out) = @_; |
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$self->{'_pyx_parser'}->parse_file($file, $out); |
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return; |
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} |
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# Parse from handler. |
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sub parse_handler { |
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my ($self, $input_file_handler, $out) = @_; |
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$self->{'_pyx_parser'}->parse_handler($input_file_handler, $out); |
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return; |
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} |
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# Reset parser. |
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sub reset { |
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my $self = shift; |
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$self->{'_pyx_parser'}->{'non_parser_options'}->{'schemas'} = {}; |
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return; |
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} |
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# Gets statistics structure. |
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sub stats { |
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my $self = shift; |
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my $schemas_hr = $self->{'_pyx_parser'}->{'non_parser_options'} |
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->{'schemas'}; |
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return $schemas_hr; |
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} |
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# Attribute callback. |
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sub _call_attribute { |
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my ($pyx_parser_obj, $key, $val) = @_; |
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my $schemas_hr = $pyx_parser_obj->{'non_parser_options'}->{'schemas'}; |
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if (my ($first, $sec) = _parse_schema($key)) { |
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# Get URL for XML schema. |
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if ($first eq 'xmlns') { |
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my $schema = $sec; |
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if (! exists $schemas_hr->{$schema}) { |
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_init_struct($schemas_hr, $schema, $val); |
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} else { |
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$schemas_hr->{$schema}->[0] = $val; |
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} |
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# Add attribute to XML schema statistics. |
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} else { |
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my $schema = $first; |
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_init_struct($schemas_hr, $schema); |
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$schemas_hr->{$schema}->[1]->{'attr'}++; |
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} |
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} |
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return; |
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} |
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# Finalize callback. |
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sub _call_final { |
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my $pyx_parser_obj = shift; |
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my $schemas_hr = $pyx_parser_obj->{'non_parser_options'}->{'schemas'}; |
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my $out = $pyx_parser_obj->{'output_handler'}; |
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my $max_len = length reduce { length($a) > length($b) ? $a : $b } |
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keys %{$schemas_hr}; |
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foreach my $key (sort keys %{$schemas_hr}) { |
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printf {$out} "[ %-${max_len}s ] (E: %04d, A: %04d)%s\n", $key, |
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$schemas_hr->{$key}->[1]->{'element'}, |
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$schemas_hr->{$key}->[1]->{'attr'}, |
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$schemas_hr->{$key}->[0] ne $EMPTY_STR |
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? $SPACE.$schemas_hr->{$key}->[0] |
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: $EMPTY_STR; |
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} |
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if (! keys %{$schemas_hr}) { |
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print {$out} "No XML schemas.\n"; |
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} |
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return; |
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} |
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# Start of element callback. |
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sub _call_start_element { |
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my ($pyx_parser_obj, $elem) = @_; |
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my $schemas_hr = $pyx_parser_obj->{'non_parser_options'}->{'schemas'}; |
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if (defined(my $schema = _parse_schema($elem))) { |
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_init_struct($schemas_hr, $schema); |
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$schemas_hr->{$schema}->[1]->{'element'}++; |
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} |
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return; |
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} |
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# Initialize XML schema structure. |
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sub _init_struct { |
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my ($schemas_hr, $schema, $uri) = @_; |
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if (! defined $uri) { |
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$uri = $EMPTY_STR; |
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} |
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if (! exists $schemas_hr->{$schema}) { |
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$schemas_hr->{$schema} = [$uri, { |
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'attr' => 0, |
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'element' => 0, |
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}]; |
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} |
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return; |
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} |
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# Parse XML schema from string. |
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sub _parse_schema { |
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my $string = shift; |
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if ($string =~ m/^(.+?):(.+)$/ms) { |
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return wantarray ? ($1, $2) : $1; |
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} |
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return; |
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} |
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1; |
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168
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__END__ |