Enables semantically enriched output for Drupal sites in the form of RDFa. File core/modules/rdf/rdf.module
rdf_preprocess_username(&$variables) Implements
rdf_preprocess_node(&$variables) Implements
template_preprocess_rdf_metadata(&$variables) Prepares variables for RDF metadata templates.
rdf_rdfa_attributes($mapping, $data = NULL) Builds an array of RDFa attributes for a given mapping.
rdf_preprocess_taxonomy_term(&$variables) Implements
Functions to describe entities and bundles in RDF. The RDF module introduces RDF and RDFa to Drupal. RDF is a W3C standard to describe structured
rdf_preprocess_user(&$variables) Implements
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