Separate instructions for testing well formed XML files and validation against DTD

docs/Commands.md

@@ -20,6 +20,12 @@ This command re-triggers the [XML Validation](Validation.md#xml-validation) for
 
 When the [Server Cache Path](Preferences.md#server-cache-path) is activated, the command removes the referenced XSD, DTD grammar from the local cache.
 
+## Revalidate current XML file (XML Syntax Only)
+
+This command re-triggers the [XML Validation](Validation.md#xml-validation) for the current file only for XML syntax even if XML is bound to a DTD, XML Schema, RelaxNG.
+
+When the [Server Cache Path](Preferences.md#server-cache-path) is activated, the command removes the referenced XSD, DTD grammar from the local cache.
+
 ## Revalidate all open XML files
 
 This command re-triggers the [XML Validation](Validation.md#xml-validation) for the all opened XML files.

docs/Validation.md

@@ -518,6 +518,14 @@ Now, update the xsi:schemaLocation with bad location hint
 
 In `always` you will have error, in `onValidSchema` you will have none error.
 
+## xml.validation.dtd.enabled
+
+The `xml.validation.dtd.enabled` gives the capability to enable / disable the validation based on DTD. It can be configured with 3 values:
+
+ * `always`: enable DTD based validation.
+ * `never`: disable DTD based validation.
+ * `onValidDTD`: enable DTD based validation only when the declared DOCTYPE is valid.
+
 ## xml.validation.filters
 
 XML validation filter gives you the capability to define validation rules for files matching a given pattern. For instance if you wish to disable validation for all files which have the `*.myxml` file extension, you must declare this filter in the `settings.json`:
@@ -554,7 +562,7 @@ By default, vscode-xml uses this default validation filter:
     "noGrammar": "ignore",
     "schema": {
       "enabled": "never"
-    }    
+    }
   },
   // Ignore no grammar hint for Eclipse files like .project
   {

package.json

@@ -506,6 +506,22 @@
           "markdownDescription": "Enable/disable schema based validation. Default is `always`. Ignored if `#xml.validation.enabled#` is set to `false`. See [here](command:xml.open.docs?%5B%7B%22page%22%3A%22Validation%22%2C%22section%22%3A%22xmlvalidationschemaenabled%22%7D%5D) for more information.",
           "scope": "window"
         },
+        "xml.validation.dtd.enabled": {
+          "type": "string",
+          "default": "always",
+          "enum": [
+            "always",
+            "never",
+            "onValidDTD"
+          ],
+          "markdownEnumDescriptions": [
+            "Enable DTD based validation.",
+            "Disable DTD based validation.",
+            "Enable DTD based validation only when the declared DOCTYPE is valid for the root element."
+          ],
+          "markdownDescription": "Enable/disable DTD based validation. Default is `always`. Ignored if `#xml.validation.enabled#` is set to `false`. See [here](command:xml.open.docs?%5B%7B%22page%22%3A%22Validation%22%2C%22section%22%3A%22xmlvalidationdtdenabled%22%7D%5D) for more information.",
+          "scope": "window"
+        },
         "xml.validation.disallowDocTypeDecl": {
           "type": "boolean",
           "default": false,
@@ -765,6 +781,11 @@
         "title": "Revalidate current XML file",
         "category": "XML"
       },
+      {
+        "command": "xml.validation.syntax.current.file",
+        "title": "Revalidate current XML file (XML syntax Only)",
+        "category": "XML"
+      },
       {
         "command": "xml.validation.all.files",
         "title": "Revalidate all opened XML files",
@@ -802,6 +823,10 @@
           "command": "xml.validation.current.file",
           "when": "editorLangId in xml.supportedLanguageIds && XMLLSReady"
         },
+        {
+          "command": "xml.validation.syntax.current.file",
+          "when": "editorLangId == xml && XMLLSReady"
+        },
         {
           "command": "xml.validation.all.files",
           "when": "XMLLSReady"

src/commands/clientCommandConstants.ts

@@ -43,6 +43,8 @@ export const OPEN_DOCS = 'xml.open.docs';
  */
 export const VALIDATE_CURRENT_FILE = 'xml.validation.current.file';
 
+export const VALIDATE_ONLY_SYNTAX_CURRENT_FILE = 'xml.validation.syntax.current.file';
+
 export const VALIDATE_ALL_FILES = 'xml.validation.all.files';
 
 export const OPEN_DOCS_HOME = 'xml.open.docs.home';
@@ -74,4 +76,4 @@ export const EXECUTE_WORKSPACE_COMMAND = 'xml.workspace.executeCommand';
 
  export const REFACTOR_SURROUND_WITH_COMMENTS = 'xml.refactor.surround.with.comments';
 
- export const REFACTOR_SURROUND_WITH_CDATA = 'xml.refactor.surround.with.cdata';
+ export const REFACTOR_SURROUND_WITH_CDATA = 'xml.refactor.surround.with.cdata';

src/commands/registerCommands.ts

@@ -141,6 +141,27 @@ function registerValidationCommands(context: ExtensionContext) {
         window.showErrorMessage('Error during XML validation ' + error.message);
       });
   }));
+
+  // Revalidate (Only XML syntax) current file
+  context.subscriptions.push(commands.registerCommand(ClientCommandConstants.VALIDATE_ONLY_SYNTAX_CURRENT_FILE, async (identifierParam, validationArgs) => {
+    let identifier = identifierParam;
+    if (!identifier) {
+      const uri = window.activeTextEditor.document.uri;
+      identifier = TextDocumentIdentifier.create(uri.toString());
+    }
+    const configXML = workspace.getConfiguration().get('xml.validation');
+    const x = JSON.stringify(configXML); //configXML is not a JSON type
+    const validationSettings =  JSON.parse(x);
+    validationSettings['dtd']['enabled'] = 'never';
+    validationSettings['schema']['enabled'] = 'never';
+    commands.executeCommand(ClientCommandConstants.EXECUTE_WORKSPACE_COMMAND, ServerCommandConstants.VALIDATE_CURRENT_FILE, identifier, validationArgs, validationSettings).
+      then(() => {
+        window.showInformationMessage('The current XML file was successfully validated (XML Syntax Only).');
+      }, error => {
+        window.showErrorMessage('Error during XML validation (XML Syntax Only) ' + error.message);
+      });
+  }));
+
   // Revalidate all open files
   context.subscriptions.push(commands.registerCommand(ClientCommandConstants.VALIDATE_ALL_FILES, async () => {
     commands.executeCommand(ClientCommandConstants.EXECUTE_WORKSPACE_COMMAND, ServerCommandConstants.VALIDATE_ALL_FILES).