make rdfa module and migrate code

Author: Porges

html2rdf-cli/src/main.rs

@@ -1,7 +1,7 @@
 use std::{io::Write, process::ExitCode};
 
 use clap::Parser;
-use html2rdf::{Options, algorithms::OnlineVocabularyResolver, host_language::Html5};
+use html2rdf::{Options, host_language::Html5, rdfa::algorithms::OnlineVocabularyResolver};
 use oxrdf::{
     Graph,
     graph::{CanonicalizationAlgorithm, CanonicalizationHashAlgorithm},
@@ -103,10 +103,12 @@ async fn main() -> Result<ExitCode, Box<dyn std::error::Error>> {
 
     {
         // use serializer with all known prefixes
-        let serializer = html2rdf::initial_context::prefixes().mappings().try_fold(
-            oxttl::TurtleSerializer::new().with_base_iri(base.as_str())?,
-            |serializer, (prefix, value)| serializer.with_prefix(prefix, value),
-        )?;
+        let serializer = html2rdf::rdfa::initial_context::prefixes()
+            .mappings()
+            .try_fold(
+                oxttl::TurtleSerializer::new().with_base_iri(base.as_str())?,
+                |serializer, (prefix, value)| serializer.with_prefix(prefix, value),
+            )?;
 
         if args.canonicalize {
             output_graph.canonicalize(CanonicalizationAlgorithm::Rdfc10 {

html2rdf/src/host_language/html.rs

@@ -46,11 +46,11 @@ impl super::HostLanguage for Html5 {
     type ParseError = Infallible;
 
     fn initial_terms(&self) -> &'static std::collections::BTreeMap<String, oxrdf::NamedNode> {
-        crate::initial_context::terms()
+        crate::rdfa::initial_context::terms()
     }
 
     fn initial_prefixes(&self) -> &'static curie::PrefixMapping {
-        crate::initial_context::prefixes()
+        crate::rdfa::initial_context::prefixes()
     }
 
     // “The default vocabulary URI is undefined.

html2rdf/src/host_language/xhtml.rs

@@ -67,7 +67,7 @@ impl HostLanguage for XHtml {
         static INITIAL_TERMS: OnceLock<std::collections::BTreeMap<String, NamedNode>> =
             OnceLock::new();
         INITIAL_TERMS.get_or_init(|| {
-            let mut terms = crate::initial_context::terms().clone();
+            let mut terms = crate::rdfa::initial_context::terms().clone();
             for t in [
                 "alternate",
                 "appendix",
@@ -110,7 +110,7 @@ impl HostLanguage for XHtml {
     }
 
     fn initial_prefixes(&self) -> &'static curie::PrefixMapping {
-        crate::initial_context::prefixes()
+        crate::rdfa::initial_context::prefixes()
     }
 }