Add XML vocabulary

include/cowl_vocab.h

@@ -20,6 +20,7 @@
 #include "cowl_owl_vocab.h"
 #include "cowl_rdf_vocab.h"
 #include "cowl_rdfs_vocab.h"
+#include "cowl_xml_vocab.h"
 #include "cowl_xsd_vocab.h"
 // IWYU pragma: end_exports
 
@@ -37,6 +38,9 @@ typedef struct CowlVocab {
     /// RDFS vocabulary.
     CowlRDFSVocab const *rdfs;
 
+    /// XML vocabulary.
+    CowlXMLVocab const *xml;
+
     /// XSD vocabulary.
     CowlXSDVocab const *xsd;
 

include/cowl_xml_vocab.h

@@ -0,0 +1,53 @@
+/**
+ * Defines CowlXMLVocab.
+ *
+ * @author Ivano Bilenchi
+ *
+ * @copyright Copyright (c) 2024 SisInf Lab, Polytechnic University of Bari
+ * @copyright <http://swot.sisinflab.poliba.it>
+ * @copyright SPDX-License-Identifier: EPL-2.0
+ *
+ * @file
+ */
+
+#ifndef COWL_XML_VOCAB_H
+#define COWL_XML_VOCAB_H
+
+#include "cowl_attrs.h"
+#include "cowl_macros.h"
+
+COWL_BEGIN_DECLS
+
+/// @cond
+cowl_struct_decl(CowlString);
+/// @endcond
+
+/// The XML vocabulary.
+typedef struct CowlXMLVocab {
+
+    /// XML namespace.
+    CowlString *ns;
+
+    /// XML prefix.
+    CowlString *prefix;
+
+    /// xmlns namespace.
+    CowlString *xmlns_ns;
+
+    /// xmlns prefix.
+    CowlString *xmlns_prefix;
+
+} CowlXMLVocab;
+
+/**
+ * Returns the XML vocabulary.
+ *
+ * @return The XML vocabulary.
+ */
+COWL_API
+COWL_CONST
+CowlXMLVocab const *cowl_xml_vocab(void);
+
+COWL_END_DECLS
+
+#endif // COWL_XML_VOCAB_H

src/cowl_vocab.c

@@ -17,6 +17,8 @@
 #include "cowl_rdfs_vocab_private.h"
 #include "cowl_ret.h"
 #include "cowl_string_private.h"
+#include "cowl_xml_vocab.h"
+#include "cowl_xml_vocab_private.h"
 #include "cowl_xsd_vocab.h"
 #include "cowl_xsd_vocab_private.h"
 #include "ulib.h"
@@ -29,11 +31,12 @@ CowlVocab const *cowl_vocab(void) {
 
 cowl_ret cowl_vocab_init(void) {
     if (cowl_owl_vocab_init() || cowl_rdf_vocab_init() || cowl_rdfs_vocab_init() ||
-        cowl_xsd_vocab_init())
+        cowl_xml_vocab_init() || cowl_xsd_vocab_init())
         return COWL_ERR_MEM;
     vocab.owl = cowl_owl_vocab();
     vocab.rdf = cowl_rdf_vocab();
     vocab.rdfs = cowl_rdfs_vocab();
+    vocab.xml = cowl_xml_vocab();
     vocab.xsd = cowl_xsd_vocab();
     return COWL_OK;
 }
@@ -42,6 +45,7 @@ void cowl_vocab_deinit(void) {
     cowl_owl_vocab_deinit();
     cowl_rdf_vocab_deinit();
     cowl_rdfs_vocab_deinit();
+    cowl_xml_vocab_deinit();
     cowl_xsd_vocab_deinit();
 }
 

src/cowl_xml_vocab.c

@@ -0,0 +1,43 @@
+/**
+ * @author Ivano Bilenchi
+ *
+ * @copyright Copyright (c) 2024 SisInf Lab, Polytechnic University of Bari
+ * @copyright <http://swot.sisinflab.poliba.it>
+ * @copyright SPDX-License-Identifier: EPL-2.0
+ *
+ * @file
+ */
+
+#include "cowl_xml_vocab.h"
+#include "cowl_ret.h"
+#include "cowl_vocab_private.h"
+#include "cowl_xml_vocab_private.h"
+
+static CowlXMLVocab vocab;
+
+static inline cowl_ret cowl_xml_vocab_validate(void) {
+    if (vocab.ns && vocab.prefix && vocab.xmlns_ns && vocab.xmlns_prefix) return COWL_OK;
+    return COWL_ERR_MEM;
+}
+
+cowl_ret cowl_xml_vocab_init(void) {
+    vocab = (struct CowlXMLVocab){
+        .ns = cowl_string_vocab_intern("http://www.w3.org/XML/1998/namespace"),
+        .prefix = cowl_string_vocab("xml"),
+        .xmlns_ns = cowl_string_vocab_intern("http://www.w3.org/2000/xmlns/"),
+        .xmlns_prefix = cowl_string_vocab("xmlns"),
+    };
+
+    return cowl_xml_vocab_validate();
+}
+
+void cowl_xml_vocab_deinit(void) {
+    cowl_string_vocab_free(vocab.ns);
+    cowl_string_vocab_free(vocab.prefix);
+    cowl_string_vocab_free(vocab.xmlns_ns);
+    cowl_string_vocab_free(vocab.xmlns_prefix);
+}
+
+CowlXMLVocab const *cowl_xml_vocab(void) {
+    return &vocab;
+}

src/cowl_xml_vocab_private.h

@@ -0,0 +1,25 @@
+/**
+ * @author Ivano Bilenchi
+ *
+ * @copyright Copyright (c) 2024 SisInf Lab, Polytechnic University of Bari
+ * @copyright <http://swot.sisinflab.poliba.it>
+ * @copyright SPDX-License-Identifier: EPL-2.0
+ *
+ * @file
+ */
+
+#ifndef COWL_XML_VOCAB_PRIVATE_H
+#define COWL_XML_VOCAB_PRIVATE_H
+
+#include "cowl_attrs.h"
+#include "cowl_ret.h"
+#include "cowl_xml_vocab.h" // IWYU pragma: export
+
+COWL_BEGIN_DECLS
+
+cowl_ret cowl_xml_vocab_init(void);
+void cowl_xml_vocab_deinit(void);
+
+COWL_END_DECLS
+
+#endif // COWL_XML_VOCAB_PRIVATE_H