function apply_markup($content)
{
//Single items only
if (!is_singular() || !in_the_loop()) {
return $content;
}
//Get the current type
$type = $this->get_postmeta('rich_snippet_type');
if (!strlen($type) || $type == 'none') {
return $content;
}
//Get the current format
$format = 'so';
//Get tag templates for the current format
$formats = $this->get_supported_snippet_formats();
//Get data for the current type
$types = $this->get_supported_snippet_types();
$type_data = $types[$type];
//Cycle through the current type's properties
$append = '';
$num_properties = 0;
$supervalue_regex = '';
foreach ($type_data['properties'] as $property => $property_data) {
//Get the property tags
$tag = is_array($property_data['tags']) ? $property_data['tags'][$format] : $property_data['tags'];
if (isset($property_data['hidden_tags'])) {
$hidden_tag = is_array($property_data['hidden_tags']) ? $property_data['hidden_tags'][$format] : $property_data['hidden_tags'];
} else {
$hidden_tag = $tag;
}
if (isset($property_data['properties']) && is_array($property_data['properties']) && count($property_data['properties'])) {
$subproperty_regex_pieces = array();
$subproperty_hidden_markedup_values = array();
foreach ($property_data['properties'] as $subproperty => $subproperty_data) {
//Get the subproperty tags
$subproperty_tag = is_array($subproperty_data['tags']) ? $subproperty_data['tags'][$format] : $subproperty_data['tags'];
if (isset($subproperty_data['hidden_tags'])) {
$subproperty_hidden_tag = is_array($subproperty_data['hidden_tags']) ? $subproperty_data['hidden_tags'][$format] : $subproperty_data['hidden_tags'];
} else {
$subproperty_hidden_tag = $subproperty_tag;
}
$subproperty_value = strval($this->get_postmeta("rich_snippet_{$type}_{$property}_{$subproperty}"));
if ($subproperty_value) {
$subproperty_hidden_markedup_values[] = $this->add_tags($subproperty_value, $subproperty_hidden_tag, $formats[$format]['hidden_property_tags_template']);
$subproperty_regex_pieces[] = sustr::preg_escape($subproperty_value);
}
}
/*$supervalue_regex = implode('(<br ?/?>|\s|,)*?', $subproperty_regex_pieces);*/
$supervalue_regex = implode('|', $subproperty_regex_pieces);
$supervalue_regex = "({$supervalue_regex})";
$supervalue_regex = array_fill(0, count($subproperty_regex_pieces), $supervalue_regex);
$supervalue_regex = implode('(<br ?/?>|\\s|.){0,20}', $supervalue_regex);
$this->apply_subproperty_markup_args = array('format' => $format, 'type' => $type, 'property' => $property, 'property_tag' => $tag, 'property_tag_template' => $formats[$format]['property_tags_template'], 'subproperties' => $property_data['properties']);
$count = 0;
$content = preg_replace_callback("%({$supervalue_regex})%", array(&$this, 'apply_subproperty_markup'), $content, 1, $count);
if ($count == 0) {
if (count($subproperty_hidden_markedup_values)) {
$append .= $this->add_tags(implode($subproperty_hidden_markedup_values), $tag, $formats[$format]['property_tags_template'], false);
$num_properties++;
}
} else {
$num_properties++;
}
} else {
//Get the current value for this property
$value = strval($this->get_postmeta("rich_snippet_{$type}_{$property}"));
if (strlen($value)) {
if (sustr::startswith($value, 'obj_') && isset($property_data['jlsuggest']) && $property_data['jlsuggest']) {
$value = $this->jlsuggest_value_to_url($value, true);
}
} else {
//If a value is not set, look for a value-generating function
if (isset($property_data['value_function'])) {
$valfunc = (array) $property_data['value_function'];
if (is_callable($valfunc[0])) {
$valfunc_args = isset($valfunc[1]) ? (array) $valfunc[1] : array();
$value = call_user_func_array($valfunc[0], $valfunc_args);
}
}
}
//If still no value, skip this property
if (!strlen($value)) {
continue;
}
//Add property tags to the value
$markedup_value = $this->add_tags($value, $tag, $formats[$format]['property_tags_template']);
$hidden_markedup_value = $this->add_tags($value, $hidden_tag, $formats[$format]['hidden_property_tags_template']);
//Apply a value format to visible values if provided
if (isset($property_data['value_format'])) {
$values = array_values(sustr::batch_replace('%s', $value, $property_data['value_format']));
$markedup_values = array_values(sustr::batch_replace('%s', $markedup_value, $property_data['value_format']));
} else {
$values = array($value);
$markedup_values = array($markedup_value);
}
//Is the value in the content, and are we allowed to search/replace the content for this value?
$count = 0;
if (empty($property_data['always_hidden'])) {
for ($i = 0; $i < count($values); $i++) {
$content = sustr::htmlsafe_str_replace($values[$i], $markedup_values[$i], $content, 1, $count);
if ($count > 0) {
break;
}
}
}
if ($count == 0) {
$append .= $hidden_markedup_value;
}
$num_properties++;
}
}
if (isset($type_data['content_tags'])) {
$content_tag = is_array($type_data['content_tags']) ? $type_data['content_tags'][$format] : $type_data['content_tags'];
$content = $this->add_tags($content, $content_tag, $formats[$format]['property_tags_template'], false);
}
if ($num_properties) {
$type_tag = is_array($type_data['tags']) ? $type_data['tags'][$format] : $type_data['tags'];
$content = $this->add_tags("{$content}<div>{$append}</div>", $type_tag, $formats[$format]['item_tags_template'], false);
if ($this->get_setting('mark_code', true, 'settings')) {
$content .= "\n\n<!-- " . sprintf(__('Schema.org markup generated by %1$s (%2$s)', 'seo-ultimate'), SU_PLUGIN_NAME, SU_PLUGIN_URI) . " -->\n\n";
}
}
//Return filtered content
return $content;
}
