| 1 |
package Whatpm::RDFXML; |
| 2 |
use strict; |
| 3 |
|
| 4 |
## NOTE: EntityReference nodes are not supported except that |
| 5 |
## unexpected entity reference are simply ignored. (In fact |
| 6 |
## all EntityRefernce nodes are ignored.) |
| 7 |
|
| 8 |
## TODO: Add a callback function invoked for every element |
| 9 |
## when XMLCC is implemented in WDCC. |
| 10 |
|
| 11 |
## ISSUE: <html:nest/> in RDF subtree? |
| 12 |
|
| 13 |
## ISSUE: PIs in RDF subtree should be validated? |
| 14 |
|
| 15 |
my $RDF_URI = q<http://www.w3.org/1999/02/22-rdf-syntax-ns#>; |
| 16 |
|
| 17 |
sub new ($) { |
| 18 |
my $self = bless {fact_level => 'm', grammer_level => 'm'}, shift; |
| 19 |
$self->{next_id} = 0; |
| 20 |
$self->{onerror} = sub { |
| 21 |
my %opt = @_; |
| 22 |
warn $opt{type}, "\n"; |
| 23 |
}; |
| 24 |
$self->{ontriple} = sub { |
| 25 |
my %opt = @_; |
| 26 |
my $dump_resource = sub { |
| 27 |
my $resource = shift; |
| 28 |
if (defined $resource->{uri}) { |
| 29 |
return '<' . $resource->{uri} . '>'; |
| 30 |
} elsif (defined $resource->{bnodeid}) { |
| 31 |
return '_:' . $resource->{bnodeid}; |
| 32 |
} elsif ($resource->{nodes}) { |
| 33 |
return '"' . join ('', map {$_->inner_html} @{$resource->{nodes}}) . |
| 34 |
'"^^<' . $resource->{datatype} . '>'; |
| 35 |
} elsif (defined $resource->{value}) { |
| 36 |
return '"' . $resource->{value} . '"' . |
| 37 |
(defined $resource->{datatype} |
| 38 |
? '^^<' . $resource->{datatype} . '>' |
| 39 |
: '@' . $resource->{language}); |
| 40 |
} else { |
| 41 |
return '??'; |
| 42 |
} |
| 43 |
}; |
| 44 |
print STDERR $dump_resource->($opt{subject}) . ' '; |
| 45 |
print STDERR $dump_resource->($opt{predicate}) . ' '; |
| 46 |
print STDERR $dump_resource->($opt{object}) . "\n"; |
| 47 |
if ($dump_resource->{id}) { |
| 48 |
print STDERR $dump_resource->($dump_resource->{id}) . ' '; |
| 49 |
print STDERR $dump_resource->({uri => $RDF_URI . 'subject'}) . ' '; |
| 50 |
print STDERR $dump_resource->($opt{subject}) . "\n"; |
| 51 |
print STDERR $dump_resource->($dump_resource->{id}) . ' '; |
| 52 |
print STDERR $dump_resource->({uri => $RDF_URI . 'predicate'}) . ' '; |
| 53 |
print STDERR $dump_resource->($opt{predicate}) . "\n"; |
| 54 |
print STDERR $dump_resource->($dump_resource->{id}) . ' '; |
| 55 |
print STDERR $dump_resource->({uri => $RDF_URI . 'object'}) . ' '; |
| 56 |
print STDERR $dump_resource->($opt{object}) . "\n"; |
| 57 |
print STDERR $dump_resource->($dump_resource->{id}) . ' '; |
| 58 |
print STDERR $dump_resource->({uri => $RDF_URI . 'type'}) . ' '; |
| 59 |
print STDERR $dump_resource->({uri => $RDF_URI . 'Statement'}) . "\n"; |
| 60 |
} |
| 61 |
}; |
| 62 |
return $self; |
| 63 |
} # new |
| 64 |
|
| 65 |
sub convert_document ($$) { |
| 66 |
my $self = shift; |
| 67 |
my $node = shift; # Document |
| 68 |
|
| 69 |
## ISSUE: An RDF/XML document, either |doc| or |nodeElement| |
| 70 |
## is allowed as a starting production. However, |nodeElement| |
| 71 |
## is not a Root Event. |
| 72 |
|
| 73 |
my $has_element; |
| 74 |
|
| 75 |
for my $cn (@{$node->child_nodes}) { |
| 76 |
if ($cn->node_type == $cn->ELEMENT_NODE) { |
| 77 |
unless ($has_element) { |
| 78 |
if ($cn->manakai_expanded_uri eq $RDF_URI . q<RDF>) { |
| 79 |
$self->convert_rdf_element ($cn); |
| 80 |
} else { |
| 81 |
$self->convert_rdf_node_element ($cn); |
| 82 |
} |
| 83 |
$has_element = 1; |
| 84 |
} else { |
| 85 |
$self->{onerror}->(type => 'second node element', |
| 86 |
level => $self->{grammer_level}, |
| 87 |
node => $cn); |
| 88 |
} |
| 89 |
} elsif ($cn->node_type == $cn->TEXT_NODE or |
| 90 |
$cn->node_type == $cn->CDATA_SECTION_NODE) { |
| 91 |
$self->{onerror}->(type => 'character not allowed', |
| 92 |
level => $self->{grammer_level}, |
| 93 |
node => $cn); |
| 94 |
} |
| 95 |
} |
| 96 |
} # convert_document |
| 97 |
|
| 98 |
my $check_rdf_namespace = sub { |
| 99 |
my $self = shift; |
| 100 |
my $node = shift; |
| 101 |
my $node_nsuri = $node->namespace_uri; |
| 102 |
return unless defined $node_nsuri; |
| 103 |
if (substr ($node_nsuri, 0, length $RDF_URI) eq $RDF_URI and |
| 104 |
length $RDF_URI < length $node_nsuri) { |
| 105 |
$self->{onerror}->(type => 'bad rdf namespace', |
| 106 |
level => $self->{fact_level}, # Section 5.1 |
| 107 |
node => $node); |
| 108 |
} |
| 109 |
}; # $check_rdf_namespace |
| 110 |
|
| 111 |
sub convert_rdf_element ($$) { |
| 112 |
my ($self, $node) = @_; |
| 113 |
|
| 114 |
$check_rdf_namespace->($self, $node); |
| 115 |
|
| 116 |
# |RDF| |
| 117 |
|
| 118 |
for my $attr (@{$node->attributes}) { |
| 119 |
my $prefix = $attr->prefix; |
| 120 |
if (defined $prefix) { |
| 121 |
next if $prefix =~ /^[Xx][Mm][Ll]/; |
| 122 |
} else { |
| 123 |
next if $attr->manakai_local_name =~ /^[Xx][Mm][Ll]/; |
| 124 |
} |
| 125 |
|
| 126 |
$check_rdf_namespace->($self, $attr); |
| 127 |
$self->{onerror}->(type => 'attribute not allowed', |
| 128 |
level => $self->{grammer_level}, |
| 129 |
node => $attr); |
| 130 |
} |
| 131 |
|
| 132 |
# |nodeElementList| |
| 133 |
for my $cn (@{$node->child_nodes}) { |
| 134 |
if ($cn->node_type == $cn->ELEMENT_NODE) { |
| 135 |
$self->convert_node_element ($cn); |
| 136 |
} elsif ($cn->node_type == $cn->TEXT_NODE or |
| 137 |
$cn->node_type == $cn->CDATA_SECTION_NODE) { |
| 138 |
if ($cn->data =~ /[^\x09\x0A\x0D\x20]/) { |
| 139 |
$self->{onerror}->(type => 'character not allowed', |
| 140 |
level => $self->{grammer_level}, |
| 141 |
node => $cn); |
| 142 |
} |
| 143 |
} |
| 144 |
} |
| 145 |
} # convert_rdf_element |
| 146 |
|
| 147 |
my %coreSyntaxTerms = ( |
| 148 |
$RDF_URI . 'RDF' => 1, |
| 149 |
$RDF_URI . 'ID' => 1, |
| 150 |
$RDF_URI . 'about' => 1, |
| 151 |
$RDF_URI . 'parseType' => 1, |
| 152 |
$RDF_URI . 'resource' => 1, |
| 153 |
$RDF_URI . 'nodeID' => 1, |
| 154 |
$RDF_URI . 'datatype' => 1, |
| 155 |
); |
| 156 |
|
| 157 |
my %oldTerms = ( |
| 158 |
$RDF_URI . 'aboutEach' => 1, |
| 159 |
$RDF_URI . 'aboutEachPrefix' => 1, |
| 160 |
$RDF_URI . 'bagID' => 1, |
| 161 |
); |
| 162 |
|
| 163 |
require Message::DOM::DOMImplementation; |
| 164 |
my $resolve = sub { |
| 165 |
return Message::DOM::DOMImplementation->create_uri_reference ($_[0]) |
| 166 |
->get_absolute_reference ($_[1]->base_uri) |
| 167 |
->uri_reference; |
| 168 |
|
| 169 |
## TODO: Check latest xml:base and IRI spec... |
| 170 |
## (non IRI/URI chars should be percent-encoded before resolve?) |
| 171 |
}; # $resolve |
| 172 |
|
| 173 |
my $generate_bnodeid = sub { |
| 174 |
return 'g'.$_[0]->{next_id}++; |
| 175 |
}; # $generate_bnodeid |
| 176 |
|
| 177 |
my $get_bnodeid = sub { |
| 178 |
return 'b'.$_[0]; |
| 179 |
}; # $get_bnodeid |
| 180 |
|
| 181 |
sub convert_node_element ($$) { |
| 182 |
my ($self, $node) = @_; |
| 183 |
|
| 184 |
$check_rdf_namespace->($self, $node); |
| 185 |
|
| 186 |
# |nodeElement| |
| 187 |
|
| 188 |
my $xuri = $node->manakai_expanded_uri; |
| 189 |
|
| 190 |
if ({ |
| 191 |
%coreSyntaxTerms, |
| 192 |
$RDF_URI . 'li' => 1, |
| 193 |
%oldTerms, |
| 194 |
}->{$xuri}) { |
| 195 |
$self->{onerror}->(type => 'element not allowed', |
| 196 |
level => $self->{grammer_level}, |
| 197 |
node => $node); |
| 198 |
|
| 199 |
## TODO: W3C RDF Validator: Continue validation, but triples that would |
| 200 |
## be generated from the subtree are ignored. |
| 201 |
} |
| 202 |
|
| 203 |
my $subject; |
| 204 |
my $type_attr; |
| 205 |
my @prop_attr; |
| 206 |
|
| 207 |
for my $attr (@{$node->attributes}) { |
| 208 |
my $prefix = $attr->prefix; |
| 209 |
if (defined $prefix) { |
| 210 |
next if $prefix =~ /^[Xx][Mm][Ll]/; |
| 211 |
} else { |
| 212 |
next if $attr->manakai_local_name =~ /^[Xx][Mm][Ll]/; |
| 213 |
} |
| 214 |
|
| 215 |
$check_rdf_namespace->($self, $attr); |
| 216 |
|
| 217 |
my $attr_xuri = $attr->manakai_expanded_uri; |
| 218 |
if ($attr_xuri eq $RDF_URI . 'ID') { |
| 219 |
unless (defined $subject) { |
| 220 |
$subject = {uri => $resolve->('#' . $attr->value, $attr)}; |
| 221 |
} else { |
| 222 |
## TODO: Ignore triple as W3C RDF Validator does |
| 223 |
} |
| 224 |
} elsif ($attr_xuri eq $RDF_URI . 'nodeID') { |
| 225 |
unless (defined $subject) { |
| 226 |
$subject = {bnodeid => $get_bnodeid->($attr->value)}; |
| 227 |
} else { |
| 228 |
## TODO: Ignore triple as W3C RDF Validator does |
| 229 |
} |
| 230 |
} elsif ($attr_xuri eq $RDF_URI . 'about') { |
| 231 |
unless (defined $subject) { |
| 232 |
$subject = {uri => $resolve->($attr->value, $attr)}; |
| 233 |
} else { |
| 234 |
## TODO: Ignore triple as W3C RDF Validator does |
| 235 |
} |
| 236 |
} elsif ($attr_xuri eq $RDF_URI . 'type') { |
| 237 |
$type_attr = $attr; |
| 238 |
} elsif ({ |
| 239 |
%coreSyntaxTerms, |
| 240 |
$RDF_URI . 'li' => 1, |
| 241 |
$RDF_URI . 'Description' => 1, |
| 242 |
%oldTerms, |
| 243 |
}->{$attr_xuri}) { |
| 244 |
$self->{onerror}->(type => 'attribute not allowed', |
| 245 |
level => $self->{grammer_level}, |
| 246 |
node => $attr); |
| 247 |
|
| 248 |
## TODO: W3C RDF Validator: Ignore triples |
| 249 |
} else { |
| 250 |
push @prop_attr, $attr; |
| 251 |
} |
| 252 |
} |
| 253 |
|
| 254 |
unless (defined $subject) { |
| 255 |
$subject = {bnodeid => $generate_bnodeid->($self)}; |
| 256 |
} |
| 257 |
|
| 258 |
if ($xuri ne $RDF_URI . 'Description') { |
| 259 |
$self->{ontriple}->(subject => $subject, |
| 260 |
predicate => {uri => $RDF_URI . 'type'}, |
| 261 |
object => {uri => $xuri}, |
| 262 |
node => $node); |
| 263 |
} |
| 264 |
|
| 265 |
if ($type_attr) { |
| 266 |
$self->{ontriple}->(subject => $subject, |
| 267 |
predicate => {uri => $RDF_URI . 'type'}, |
| 268 |
object => {uri => $resolve->($type_attr->value, |
| 269 |
$type_attr)}, |
| 270 |
node => $type_attr); |
| 271 |
} |
| 272 |
|
| 273 |
for my $attr (@prop_attr) { |
| 274 |
$self->{ontriple}->(subject => $subject, |
| 275 |
predicate => {uri => $attr->manakai_expanded_uri}, |
| 276 |
object => {value => $attr->value}, ## TODO: language |
| 277 |
node => $attr); |
| 278 |
## TODO: SHOULD in NFC |
| 279 |
} |
| 280 |
|
| 281 |
# |propertyEltList| |
| 282 |
|
| 283 |
my $li_counter = 1; |
| 284 |
for my $cn (@{$node->child_nodes}) { |
| 285 |
my $cn_type = $cn->node_type; |
| 286 |
if ($cn_type == $cn->ELEMENT_NODE) { |
| 287 |
$self->convert_property_element ($cn, li_counter => \$li_counter, |
| 288 |
subject => $subject); |
| 289 |
} elsif ($cn_type == $cn->TEXT_NODE or |
| 290 |
$cn_type == $cn->CDATA_SECTION_NODE) { |
| 291 |
if ($cn->data =~ /[^\x09\x0A\x0D\x20]/) { |
| 292 |
$self->{onerror}->(type => 'character not allowed', |
| 293 |
level => $self->{grammer_level}, |
| 294 |
node => $cn); |
| 295 |
} |
| 296 |
} |
| 297 |
} |
| 298 |
|
| 299 |
return $subject; |
| 300 |
} # convert_node_element |
| 301 |
|
| 302 |
my $get_id_resource = sub { |
| 303 |
return $_[0] ? {uri => $resolve->('#' . $_[0]->value, $_[0])} : undef; |
| 304 |
}; # $get_id_resource |
| 305 |
|
| 306 |
sub convert_property_element ($$%) { |
| 307 |
my ($self, $node, %opt) = @_; |
| 308 |
|
| 309 |
$check_rdf_namespace->($self, $node); |
| 310 |
|
| 311 |
# |propertyElt| |
| 312 |
|
| 313 |
my $xuri = $node->manakai_expanded_uri; |
| 314 |
if ($xuri eq $RDF_URI . 'li') { |
| 315 |
$xuri = $RDF_URI . '_' . ${$opt{li_counter}}++; |
| 316 |
} |
| 317 |
|
| 318 |
if ({ |
| 319 |
%coreSyntaxTerms, |
| 320 |
$RDF_URI . 'Description' => 1, |
| 321 |
%oldTerms, |
| 322 |
}->{$xuri}) { |
| 323 |
$self->{onerror}->(type => 'element not allowed', |
| 324 |
level => $self->{grammer_level}, |
| 325 |
node => $node); |
| 326 |
## TODO: RDF Validator? |
| 327 |
} |
| 328 |
|
| 329 |
my $id_attr; |
| 330 |
my $dt_attr; |
| 331 |
my $parse_attr; |
| 332 |
my $nodeid_attr; |
| 333 |
my $resource_attr; |
| 334 |
my @prop_attr; |
| 335 |
for my $attr (@{$node->attributes}) { |
| 336 |
my $prefix = $attr->prefix; |
| 337 |
if (defined $prefix) { |
| 338 |
next if $prefix =~ /^[Xx][Mm][Ll]/; |
| 339 |
} else { |
| 340 |
next if $attr->manakai_local_name =~ /^[Xx][Mm][Ll]/; |
| 341 |
} |
| 342 |
|
| 343 |
$check_rdf_namespace->($self, $attr); |
| 344 |
|
| 345 |
my $attr_xuri = $attr->manakai_expanded_uri; |
| 346 |
if ($attr_xuri eq $RDF_URI . 'ID') { |
| 347 |
$id_attr = $attr; |
| 348 |
} elsif ($attr_xuri eq $RDF_URI . 'datatype') { |
| 349 |
$dt_attr = $attr; |
| 350 |
} elsif ($attr_xuri eq $RDF_URI . 'parseType') { |
| 351 |
$parse_attr = $attr; |
| 352 |
} elsif ($attr_xuri eq $RDF_URI . 'resource') { |
| 353 |
$resource_attr = $attr; |
| 354 |
} elsif ($attr_xuri eq $RDF_URI . 'nodeID') { |
| 355 |
$nodeid_attr = $attr; |
| 356 |
} elsif ({ |
| 357 |
%coreSyntaxTerms, |
| 358 |
$RDF_URI . 'li' => 1, |
| 359 |
$RDF_URI . 'Description' => 1, |
| 360 |
%oldTerms, |
| 361 |
}->{$attr_xuri}) { |
| 362 |
$self->{onerror}->(type => 'attribute not allowed', |
| 363 |
level => $self->{grammer_level}, |
| 364 |
node => $attr); |
| 365 |
## TODO: RDF Validator? |
| 366 |
} else { |
| 367 |
push @prop_attr, $attr; |
| 368 |
} |
| 369 |
} |
| 370 |
|
| 371 |
my $parse = $parse_attr ? $parse_attr->value : ''; |
| 372 |
if ($parse eq 'Resource') { |
| 373 |
# |parseTypeResourcePropertyElt| |
| 374 |
|
| 375 |
for my $attr ($resource_attr, $nodeid_attr, $dt_attr) { |
| 376 |
next unless $attr; |
| 377 |
$self->{onerror}->(type => 'attribute not allowed', |
| 378 |
level => $self->{grammer_level}, |
| 379 |
node => $attr); |
| 380 |
## TODO: RDF Validator? |
| 381 |
} |
| 382 |
|
| 383 |
my $object = {bnodeid => $generate_bnodeid->($self)}; |
| 384 |
$self->{ontriple}->(subject => $opt{subject}, |
| 385 |
predicate => {uri => $xuri}, |
| 386 |
object => $object, |
| 387 |
node => $node, |
| 388 |
id => $get_id_resource->($id_attr)); |
| 389 |
|
| 390 |
## As if nodeElement |
| 391 |
|
| 392 |
# |propertyEltList| |
| 393 |
|
| 394 |
my $li_counter = 1; |
| 395 |
for my $cn (@{$node->child_nodes}) { |
| 396 |
my $cn_type = $cn->node_type; |
| 397 |
if ($cn_type == $cn->ELEMENT_NODE) { |
| 398 |
$self->convert_property_element ($cn, li_counter => \$li_counter, |
| 399 |
subject => $object); |
| 400 |
} elsif ($cn_type == $cn->TEXT_NODE or |
| 401 |
$cn_type == $cn->CDATA_SECTION_NODE) { |
| 402 |
if ($cn->data =~ /[^\x09\x0A\x0D\x20]/) { |
| 403 |
$self->{onerror}->(type => 'character not allowed', |
| 404 |
level => $self->{grammer_level}, |
| 405 |
node => $cn); |
| 406 |
} |
| 407 |
} |
| 408 |
} |
| 409 |
} elsif ($parse eq 'Collection') { |
| 410 |
# |parseTypeCollectionPropertyElt| |
| 411 |
|
| 412 |
for my $attr ($resource_attr, $nodeid_attr, $dt_attr) { |
| 413 |
next unless $attr; |
| 414 |
$self->{onerror}->(type => 'attribute not allowed', |
| 415 |
level => $self->{grammer_level}, |
| 416 |
node => $attr); |
| 417 |
## TODO: RDF Validator? |
| 418 |
} |
| 419 |
|
| 420 |
# |nodeElementList| |
| 421 |
my @resource; |
| 422 |
for my $cn (@{$node->child_nodes}) { |
| 423 |
if ($cn->node_type == $cn->ELEMENT_NODE) { |
| 424 |
push @resource, [$self->convert_node_element ($cn), |
| 425 |
{bnodeid => $generate_bnodeid->($self)}, |
| 426 |
$cn]; |
| 427 |
} elsif ($cn->node_type == $cn->TEXT_NODE or |
| 428 |
$cn->node_type == $cn->CDATA_SECTION_NODE) { |
| 429 |
if ($cn->data =~ /[^\x09\x0A\x0D\x20]/) { |
| 430 |
$self->{onerror}->(type => 'character not allowed', |
| 431 |
level => $self->{grammer_level}, |
| 432 |
node => $cn); |
| 433 |
} |
| 434 |
} |
| 435 |
} |
| 436 |
|
| 437 |
if (@resource) { |
| 438 |
$self->{ontriple}->(subject => $opt{subject}, |
| 439 |
predicate => {uri => $xuri}, |
| 440 |
object => $resource[0]->[1], |
| 441 |
node => $node); |
| 442 |
} else { |
| 443 |
$self->{ontriple}->(subject => $opt{subject}, |
| 444 |
predicate => {uri => $xuri}, |
| 445 |
object => {uri => $RDF_URI . 'nil'}, |
| 446 |
node => $node, |
| 447 |
id => $get_id_resource->($id_attr)); |
| 448 |
} |
| 449 |
|
| 450 |
while (@resource) { |
| 451 |
my $resource = shift @resource; |
| 452 |
$self->{ontriple}->(subject => $resource->[1], |
| 453 |
predicate => {uri => $RDF_URI . 'first'}, |
| 454 |
object => $resource->[0], |
| 455 |
node => $resource->[2]); |
| 456 |
if (@resource) { |
| 457 |
$self->{ontriple}->(subject => $resource->[1], |
| 458 |
predicate => {uri => $RDF_URI . 'rest'}, |
| 459 |
object => $resource[0]->[1], |
| 460 |
node => $resource->[2]); |
| 461 |
} else { |
| 462 |
$self->{ontriple}->(subject => $resource->[1], |
| 463 |
predicate => {uri => $RDF_URI . 'rest'}, |
| 464 |
object => {uri => $RDF_URI . 'nil'}, |
| 465 |
node => $resource->[2]); |
| 466 |
} |
| 467 |
} |
| 468 |
} elsif ($parse_attr) { |
| 469 |
# |parseTypeLiteralPropertyElt| |
| 470 |
# |parseTypeOtherPropertyElt| ## TODO: What RDF Validator does? |
| 471 |
|
| 472 |
for my $attr ($resource_attr, $nodeid_attr, $dt_attr) { |
| 473 |
next unless $attr; |
| 474 |
$self->{onerror}->(type => 'attribute not allowed', |
| 475 |
level => $self->{grammer_level}, |
| 476 |
node => $attr); |
| 477 |
## TODO: RDF Validator? |
| 478 |
} |
| 479 |
|
| 480 |
my $value = [@{$node->child_nodes}]; |
| 481 |
## TODO: Callback for validation |
| 482 |
## TODO: Serialized form SHOULD be in NFC. |
| 483 |
|
| 484 |
$self->{ontriple}->(subject => $opt{subject}, |
| 485 |
predicate => {uri => $xuri}, |
| 486 |
object => {nodes => $value, |
| 487 |
datatype => $RDF_URI . 'XMLLiteral'}, |
| 488 |
node => $node, |
| 489 |
id => $get_id_resource->($id_attr)); |
| 490 |
} else { |
| 491 |
my $mode = 'unknown'; |
| 492 |
|
| 493 |
if ($dt_attr) { |
| 494 |
$mode = 'literal'; # |literalPropertyElt| |
| 495 |
## TODO: What RDF Validator does for |< rdf:datatype><el/></>|? |
| 496 |
} |
| 497 |
## TODO: What RDF Validator does for |< prop-attr><non-empty/></>|? |
| 498 |
|
| 499 |
my $node_element; |
| 500 |
my $text = ''; |
| 501 |
for my $cn (@{$node->child_nodes}) { |
| 502 |
my $cn_type = $cn->node_type; |
| 503 |
if ($cn_type == $cn->ELEMENT_NODE) { |
| 504 |
unless ($node_element) { |
| 505 |
$node_element = $cn; |
| 506 |
if ({ |
| 507 |
resource => 1, unknown => 1, 'literal-or-resource' => 1, |
| 508 |
}->{$mode}) { |
| 509 |
$mode = 'resource'; |
| 510 |
} else { |
| 511 |
$self->{onerror}->(type => 'element not allowed', |
| 512 |
level => $self->{grammer_level}, |
| 513 |
node => $cn); |
| 514 |
## TODO: RDF Validator? |
| 515 |
} |
| 516 |
} else { |
| 517 |
## TODO: What RDF Validator does? |
| 518 |
$self->{onerror}->(type => 'second node element', |
| 519 |
level => $self->{grammer_level}, |
| 520 |
node => $cn); |
| 521 |
} |
| 522 |
} elsif ($cn_type == $cn->TEXT_NODE or |
| 523 |
$cn_type == $cn->CDATA_SECTION_NODE) { |
| 524 |
my $data = $cn->data; |
| 525 |
$text .= $data; |
| 526 |
if ($data =~ /[^\x09\x0A\x0D\x20]/) { |
| 527 |
if ({ |
| 528 |
literal => 1, unknown => 1, 'literal-or-resource' => 1, |
| 529 |
}->{$mode}) { |
| 530 |
$mode = 'literal'; |
| 531 |
} else { |
| 532 |
$self->{onerror}->(type => 'character not allowed', |
| 533 |
level => $self->{grammer_level}, |
| 534 |
node => $cn); |
| 535 |
## TODO: RDF Validator? |
| 536 |
} |
| 537 |
} else { |
| 538 |
if ($mode eq 'unknown') { |
| 539 |
$mode = 'literal-or-resource'; |
| 540 |
} else { |
| 541 |
# |
| 542 |
} |
| 543 |
} |
| 544 |
} |
| 545 |
} |
| 546 |
|
| 547 |
if ($mode eq 'resource') { |
| 548 |
# |resourcePropertyElt| |
| 549 |
|
| 550 |
for my $attr (@prop_attr, $resource_attr, $nodeid_attr, $dt_attr) { |
| 551 |
next unless $attr; |
| 552 |
$self->{onerror}->(type => 'attribute not allowed', |
| 553 |
level => $self->{grammer_level}, |
| 554 |
node => $attr); |
| 555 |
## TODO: RDF Validator? |
| 556 |
} |
| 557 |
|
| 558 |
my $object = $self->convert_node_element ($node_element); |
| 559 |
|
| 560 |
$self->{ontriple}->(subject => $opt{subject}, |
| 561 |
predicate => {uri => $xuri}, |
| 562 |
object => $object, |
| 563 |
node => $node, |
| 564 |
id => $get_id_resource->($id_attr)); |
| 565 |
} elsif ($mode eq 'literal' or $mode eq 'literal-or-resource') { |
| 566 |
# |literalPropertyElt| |
| 567 |
|
| 568 |
for my $attr (@prop_attr, $resource_attr, $nodeid_attr) { |
| 569 |
next unless $attr; |
| 570 |
$self->{onerror}->(type => 'attribute not allowed', |
| 571 |
level => $self->{grammer_level}, |
| 572 |
node => $attr); |
| 573 |
## TODO: RDF Validator? |
| 574 |
} |
| 575 |
|
| 576 |
## TODO: $text SHOULD be in NFC |
| 577 |
|
| 578 |
if ($dt_attr) { |
| 579 |
$self->{ontriple}->(subject => $opt{subject}, |
| 580 |
predicate => {uri => $xuri}, |
| 581 |
object => {value => $text, |
| 582 |
datatype => $dt_attr->value}, |
| 583 |
node => $node, |
| 584 |
id => $get_id_resource->($id_attr)); |
| 585 |
} else { |
| 586 |
$self->{ontriple}->(subject => $opt{subject}, |
| 587 |
predicate => {uri => $xuri}, |
| 588 |
object => {value => $text, |
| 589 |
## TODO: language |
| 590 |
}, |
| 591 |
node => $node, |
| 592 |
id => $get_id_resource->($id_attr)); |
| 593 |
} |
| 594 |
} else { |
| 595 |
## |emptyPropertyElt| |
| 596 |
|
| 597 |
for my $attr ($dt_attr) { |
| 598 |
next unless $attr; |
| 599 |
$self->{onerror}->(type => 'attribute not allowed', |
| 600 |
level => $self->{grammer_level}, |
| 601 |
node => $attr); |
| 602 |
## TODO: RDF Validator? |
| 603 |
} |
| 604 |
|
| 605 |
if (not $resource_attr and not $nodeid_attr and not @prop_attr) { |
| 606 |
$self->{ontriple}->(subject => $opt{subject}, |
| 607 |
predicate => {uri => $xuri}, |
| 608 |
object => {value => '', |
| 609 |
## TODO: language |
| 610 |
}, |
| 611 |
node => $node, |
| 612 |
id => $get_id_resource->($id_attr)); |
| 613 |
} else { |
| 614 |
my $object; |
| 615 |
if ($resource_attr) { |
| 616 |
$object = {uri => $resolve->($resource_attr->value, $resource_attr)}; |
| 617 |
} elsif ($nodeid_attr) { |
| 618 |
$object = {bnodeid => $get_bnodeid->($nodeid_attr->value)}; |
| 619 |
} else { |
| 620 |
$object = {bnodeid => $generate_bnodeid->($self)}; |
| 621 |
} |
| 622 |
|
| 623 |
for my $attr (@prop_attr) { |
| 624 |
my $attr_xuri = $attr->manakai_expanded_uri; |
| 625 |
if ($attr_xuri eq $RDF_URI . 'type') { |
| 626 |
$self->{ontriple}->(subject => $object, |
| 627 |
predicate => {uri => $attr_xuri}, |
| 628 |
object => $resolve->($attr->value, $attr), |
| 629 |
node => $attr); |
| 630 |
} else { |
| 631 |
## TODO: SHOULD be in NFC |
| 632 |
$self->{ontriple}->(subject => $object, |
| 633 |
predicate => {uri => $attr_xuri}, |
| 634 |
object => {value => $attr->value, |
| 635 |
## TODO: lang |
| 636 |
}, |
| 637 |
node => $attr); |
| 638 |
} |
| 639 |
} |
| 640 |
|
| 641 |
$self->{ontriple}->(subject => $opt{subject}, |
| 642 |
predicate => {uri => $xuri}, |
| 643 |
object => $object, |
| 644 |
node => $node, |
| 645 |
id => $get_id_resource->($id_attr)); |
| 646 |
} |
| 647 |
} |
| 648 |
} |
| 649 |
} # convert_property_element |
| 650 |
|
| 651 |
1; |
| 652 |
|
Parent Directory
| 
Revision Log