fix(plantuml) replace - with _

Signed-off-by: Dan Selman <[email protected]>

lib/codegen/fromcto/plantuml/plantumlvisitor.js

@@ -134,7 +134,9 @@ class PlantUMLVisitor extends DiagramVisitor {
     /**
      * Escape fully qualified names. We preserve the dots in the
      * package name, remove the '@' symbol because it is invalid
-     * and remove the dots in the version (because otherwise packages get created)
+     * and remove the dots in the version (because otherwise packages get created).
+     * We also replace all '-' characters with '_' because they are invalid in
+     * PlantUML identifiers as '-' can appear in a semver string.
      * @param {String} input - the object being visited
      * @return {String} string  - the parameter
      * @protected
@@ -146,7 +148,7 @@ class PlantUMLVisitor extends DiagramVisitor {
             const ns = ModelUtil.getNamespace(input);
             const {name,version} = ModelUtil.parseNamespace(ns);
             if(version) {
-                return `${name}_${version.replace(/\./g, '_')}.${typeName}`;
+                return `${name}_${version.replace(/\./g, '_').replace(/-/g, '_')}.${typeName}`;
             }
             else {
                 return `${name}.${typeName}`;