add skos to PrefixMapping::common

rdftk_core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rdftk_core"
-version = "0.5.2"
+version = "0.5.3"
 authors = ["Simon Johnston <[email protected]>"]
 edition = "2021"
 description = "This crate provides the core RDF data model; concrete implementations for Statements and Literals, along with a Resource type that provides a builder-like experience for models."
@@ -26,7 +26,7 @@ bimap = "0.6"
 language-tags = "0.3.2"
 lazy_static = "1.5"
 rdftk_iri = { version = "0.2.5", path = "../rdftk_iri" }
-rdftk_names = { version = "0.2.3", path = "../rdftk_names" }
+rdftk_names = { version = "0.2.4", path = "../rdftk_names" }
 unique_id = "0.1"
 uuid = { version = "1.10", features = ["v4"] }
 

rdftk_core/README.md

@@ -52,6 +52,10 @@ pub fn make_statements() -> StatementList {
 
 ## Changes
 
+### Version 0.5.3
+
+* Feature: add SKOS to PrefixMapping commons.
+
 ### Version 0.5.2
 
 * Fix: bug in `hex_encode` for binary literals.

rdftk_core/src/model/graph.rs

@@ -21,7 +21,7 @@ use crate::model::features::{Featured, FEATURE_GRAPH_DUPLICATES, FEATURE_RDF_STA
 use crate::model::statement::{BlankNode, ObjectNode, Statement, SubjectNode};
 use bimap::BiHashMap;
 use rdftk_iri::{Iri, IriExtra, Name, QName};
-use rdftk_names::{dc, foaf, owl, rdf, rdfs, xsd};
+use rdftk_names::{dc, foaf, owl, rdf, rdfs, skos, xsd};
 use std::collections::{HashMap, HashSet};
 use std::fmt::{Debug, Display, Formatter};
 use std::hash::Hash;
@@ -216,7 +216,13 @@ impl PrefixMapping {
     // --------------------------------------------------------------------------------------------
 
     pub fn common() -> Self {
-        Self::default().with_owl().with_rdf().with_rdfs().with_xsd()
+        Self::default()
+            .with_dc_elements()
+            .with_owl()
+            .with_rdf()
+            .with_rdfs()
+            .with_skos()
+            .with_xsd()
     }
 
     ///
@@ -315,6 +321,18 @@ impl PrefixMapping {
         mut_self
     }
 
+    ///
+    /// Include the common "skos"  mapping.
+    ///
+    pub fn with_skos(self) -> Self
+    where
+        Self: Sized,
+    {
+        let mut mut_self = self;
+        mut_self.insert_skos();
+        mut_self
+    }
+
     pub fn with(self, prefix: Name, iri: Iri) -> Self
     where
         Self: Sized,
@@ -422,6 +440,24 @@ impl PrefixMapping {
         );
     }
 
+    pub fn insert_skos(&mut self) {
+        self.insert(skos::default_prefix().clone(), skos::namespace().clone());
+    }
+
+    pub fn insert_skos_xl(&mut self) {
+        self.insert(
+            skos::xl::default_prefix().clone(),
+            skos::xl::namespace().clone(),
+        );
+    }
+
+    pub fn insert_skos_iso(&mut self) {
+        self.insert(
+            skos::iso::default_prefix().clone(),
+            skos::iso::namespace().clone(),
+        );
+    }
+
     ///
     /// Remove a mapping for the provided prefix. This operation has no effect if no mapping is present.
     ///