.

publish/src/rdf/curie.rs

@@ -12,7 +12,11 @@ impl CurieHelper {
         }
     }
 
-    pub fn abbreviate(&self, iri: &str) -> Option<String> {
+    pub fn abbreviate(&self, base: Option<&str>, iri: &str) -> Option<String> {
+        if let Some(base) = base && let Some(local_name) = iri.strip_prefix(base) {
+            return Some(format!(":{local_name}"));
+        }
+
         for (name, base) in &self.prefixes {
             if let Some(local_name) = iri.strip_prefix(base) {
                 return Some(format!("{name}:{local_name}"));
@@ -21,10 +25,15 @@ impl CurieHelper {
         None
     }
 
-    pub fn expand(&self, abbreviated_iri: &str) -> Option<String> {
+    pub fn expand(&self, base: Option<&str>, abbreviated_iri: &str) -> Option<String> {
         let (prefix, name) = abbreviated_iri.split_once(':')?;
-        self.prefixes
-            .get(prefix)
-            .map(|base| format!("{base}{name}"))
+
+        if prefix == "" && let Some(base) = base {
+            Some(format!("{base}{name}"))
+        } else {
+            self.prefixes
+                .get(prefix)
+                .map(|base| format!("{base}{name}"))
+        }
     }
 }