Set remaining vendor extensions to convention of lower kebab-cased with x- prefix

Author: jimschubert

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/OCamlClientCodegen.java

@@ -45,7 +45,7 @@ public class OCamlClientCodegen extends DefaultCodegen implements CodegenConfig
     public static final String PACKAGE_NAME = "packageName";
     public static final String PACKAGE_VERSION = "packageVersion";
 
-    static final String X_MODEL_MODULE = "x-modelModule";
+    static final String X_MODEL_MODULE = "x-model-module";
 
     public static final String CO_HTTP = "cohttp";
 

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpZendExpressivePathHandlerServerCodegen.java

@@ -36,6 +36,7 @@
 public class PhpZendExpressivePathHandlerServerCodegen extends AbstractPhpCodegen {
     private static final Logger LOGGER = LoggerFactory.getLogger(PhpZendExpressivePathHandlerServerCodegen.class);
 
+    // TODO: Rename to x- prefixed vendor extensions, per specification.
     public static final String VEN_FROM_QUERY = "internal.ze-ph.fromQuery";
     public static final String VEN_COLLECTION_FORMAT = "internal.ze-ph.collectionFormat";
     public static final String VEN_QUERY_DATA_TYPE = "internal.ze-ph.queryDataType";

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustServerCodegen.java

@@ -702,7 +702,7 @@ public CodegenOperation fromOperation(String path, String httpMethod, Operation
                 hasPathParams = true;
             }
 
-            op.vendorExtensions.put("callbackParams", params);
+            op.vendorExtensions.put("x-callback-params", params);
         }
 
         // Save off the regular expression and path details in the relevant
@@ -991,7 +991,7 @@ private void postProcessOperationWithModels(CodegenOperation op, List<Object> al
                         additionalProperties.put("apiUsesMultipartFormData", true);
                         additionalProperties.put("apiUsesMultipart", true);
                     } else if (isMimetypeMultipartRelated(mediaType)) {
-                        op.vendorExtensions.put("consumesMultipartRelated", true);
+                        op.vendorExtensions.put("x-consumes-multipart-related", true);
                         additionalProperties.put("apiUsesMultipartRelated", true);
                         additionalProperties.put("apiUsesMultipart", true);
                     }
@@ -1574,9 +1574,10 @@ private void processParam(CodegenParameter param, CodegenOperation op) {
         }
 
         if (Boolean.TRUE.equals(param.isFreeFormObject)) {
-            param.vendorExtensions.put("formatString", "{:?}");
+            param.vendorExtensions.put("x-format-string", "{:?}");
             example = null;
         } else if (param.isString) {
+            param.vendorExtensions.put("x-format-string", "\\\"{}\\\"");
             example = "\"" + ((param.example != null) ? param.example : "") + "\".to_string()";
         } else if (param.isPrimitiveType) {
             if ((param.isByteArray) || (param.isBinary)) {