Grok backend proposal: proposed/owl_support.rs

Author: AdaWorldAPI

.grok/lance-graph-backend-proposal/proposed/owl_support.rs

@@ -0,0 +1,56 @@
+//! Basic OWL Support Sketch for lance-graph-ontology
+//!
+//! This provides a starting point for adding OWL import/export.
+//! In a real implementation you would use a proper Rust OWL library
+//! (e.g. horned-owl if it fits, or a custom RDF/OWL writer).
+
+use std::collections::HashMap;
+
+/// Very simplified OWL Class representation
+#[derive(Debug, Clone)]
+pub struct OwlClass {
+    pub iri: String,
+    pub label: Option<String>,
+    pub super_classes: Vec<String>,
+    pub equivalent_classes: Vec<String>,
+}
+
+/// Very simplified OWL ObjectProperty
+#[derive(Debug, Clone)]
+pub struct OwlObjectProperty {
+    pub iri: String,
+    pub label: Option<String>,
+    pub domain: Option<String>,
+    pub range: Option<String>,
+}
+
+/// Minimal OWL Ontology container
+#[derive(Debug, Default)]
+pub struct OwlOntology {
+    pub classes: HashMap<String, OwlClass>,
+    pub object_properties: HashMap<String, OwlObjectProperty>,
+    // TODO: Add individuals, data properties, axioms, etc.
+}
+
+impl OwlOntology {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    /// Example: Export the OGIT+DOLCE spine to a very basic Turtle/OWL fragment
+    pub fn to_turtle_fragment(&self) -> String {
+        let mut ttl = String::from("@prefix ogit: <http://example.org/ogit#> .\n");
+        ttl.push_str("@prefix dolce: <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#> .\n\n");
+
+        for (iri, class) in &self.classes {
+            ttl.push_str(&format!("{} a owl:Class .\n", iri));
+            if let Some(label) = &class.label {
+                ttl.push_str(&format!("{} rdfs:label \"{}\" .\n", iri, label));
+            }
+        }
+        ttl
+    }
+
+    // TODO: Add real OWL parsing (using a proper parser)
+    // TODO: Bidirectional mapping between OwlOntology <-> OgitDolceSpine
+}