Adds the enlose package.

Author: zorkow

lib/TeX-lab.js

@@ -13,6 +13,7 @@ import 'mathjax3/input/tex/noundefined/NoUndefinedConfiguration.js';
 import 'mathjax3/input/tex/boldsymbol/BoldsymbolConfiguration.js';
 import 'mathjax3/input/tex/newcommand/NewcommandConfiguration.js';
 import 'mathjax3/input/tex/cancel/CancelConfiguration.js';
+import 'mathjax3/input/tex/enclose/EncloseConfiguration.js';
 
 
 let tex = new TeX();

mathjax3-ts/input/tex/enclose/EncloseConfiguration.ts

@@ -0,0 +1,77 @@
+/*************************************************************
+ *
+ *  Copyright (c) 2018 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 Configuration file for the enclose package.
+ *
+ * @author [email protected] (Volker Sorge)
+ */
+
+import {Configuration} from '../Configuration.js';
+import TexParser from '../TexParser.js';
+import {TexConstant} from '../TexConstants.js';
+import {CommandMap} from '../SymbolMap.js';
+import {ParseMethod} from '../Types.js';
+import ParseUtil from '../ParseUtil.js';
+
+
+/**
+ * The attributes allowed in \enclose{notation}[attributes]{math}
+ * @type {{[key: string]: number}}
+ */
+const ALLOWED: {[key: string]: number} = {
+  arrow: 1,
+  color: 1, mathcolor: 1,
+  background: 1, mathbackground: 1,
+  padding: 1,
+  thickness: 1
+};
+
+
+// Namespace
+export let EncloseMethods: Record<string, ParseMethod> = {};
+
+
+/**
+ * Implements \enclose{notation}[attr]{math}
+ * (create <menclose notation="notation">math</menclose>)
+ * @param {TexParser} parser The current tex parser.
+ * @param {string} name The name of the calling macro.
+ */
+EncloseMethods.Enclose = function(parser: TexParser, name: string) {
+  let notation = parser.GetArgument(name).replace(/,/g, ' ');
+  const attr = parser.GetBrackets(name, '');
+  const math = parser.ParseArg(name);
+  const def = ParseUtil.splitPackageOptions(attr, ALLOWED);
+  def.notation = notation;
+  if (def.arrow) {
+    def.notation += ' updiagonalarrow';
+    delete def.arrow;
+  }
+  parser.Push(parser.create('node', 'menclose', [math], def));
+};
+
+
+new CommandMap('enclose', {enclose:   'Enclose'}, EncloseMethods);
+
+
+export const EncloseConfiguration = Configuration.create(
+  'enclose', {handler: {macro: ['enclose']}}
+);
+
+