Change URI to IRI after finding validation pattern

generator.go

@@ -8,7 +8,7 @@ import (
 
 type Generator struct {
 	*CommonAttributes
-	URI     URI    `xml:"uri,attr,omitempty"`
+	URI     IRI    `xml:"uri,attr,omitempty"`
 	Version string `xml:"version,attr,omitempty"`
 	Text    string `xml:"text"`
 }
@@ -19,7 +19,7 @@ func NewGenerator(text string) *Generator {
 
 func (g *Generator) Check() error {
 	if g.URI != "" {
-		if !isValidURI(g.URI) {
+		if !isValidIRI(g.URI) {
 			return fmt.Errorf("uri attribute %v of generator not correctly formatted", g.URI)
 		}
 	}