stuff

node_modules/mathjax-full/ts/input/tex/StackItemFactory.ts

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+/*************************************************************
+ *
+ *  Copyright (c) 2009-2022 The MathJax Consortium
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+
+/**
+ * @fileoverview A factory for stack items. This allows particular items to be
+ *     overwritten later.
+ *
+ * @author v.sorge@mathjax.org (Volker Sorge)
+ */
+
+import {StackItemClass, StackItem, BaseItem} from './StackItem.js';
+import ParseOptions from './ParseOptions.js';
+import {AbstractFactory} from '../../core/Tree/Factory.js';
+
+
+class DummyItem extends BaseItem {}
+
+/**
+ * The StackItemFactory is initially populated with the default stack item
+ * classes. They can be changed, deleted or added to, if and when necessary.
+ *
+ * @constructor
+ * @extends {AbstractFactory}
+ */
+export default class StackItemFactory extends AbstractFactory<StackItem, StackItemClass> {
+
+  /**
+   * @override
+   */
+  public static DefaultStackItems: {[kind: string]: StackItemClass} = {
+    [DummyItem.prototype.kind]: DummyItem
+  };
+
+
+  /**
+   * @override
+   */
+  public defaultKind = 'dummy';
+
+
+  /**
+   * The parser configuration.
+   * @type {ParseOptions}
+   */
+  public configuration: ParseOptions = null;
+
+}