87 lines
2.7 KiB
JavaScript
87 lines
2.7 KiB
JavaScript
/*************************************************************
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*
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* MathJax/extensions/TeX/enclose.js
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*
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* Implements the \enclose macros, which give access from TeX to the
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* <menclose> tag in the MathML that underlies MathJax's internal format.
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*
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* Usage:
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*
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* \enclose{notation}{math} % enclose math using given notation
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* \enclose{notation,notation,...}{math} % enclose with several notations
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* \enclose{notation}[attributes]{math} % enclose with attributes
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2011-2012 Design Science, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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MathJax.Extension["TeX/enclose"] = {
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version: "2.0",
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//
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// The attributes allowed in \enclose{notation}[attributes]{math}
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//
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ALLOWED: {
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arrow: 1,
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color: 1, mathcolor: 1,
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background: 1, mathbackground: 1,
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padding: 1,
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thickness: 1
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}
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};
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MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
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var TEX = MathJax.InputJax.TeX,
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MML = MathJax.ElementJax.mml,
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ALLOW = MathJax.Extension["TeX/enclose"].ALLOWED;
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//
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// Set up macro
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//
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TEX.Definitions.macros.enclose = 'Enclose';
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TEX.Parse.Augment({
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//
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// Implement \enclose{notation}[attr]{math}
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// (create <menclose notation="notation">math</menclose>)
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//
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Enclose: function(name) {
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var notation = this.GetArgument(name),
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attr = this.GetBrackets(name),
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math = this.ParseArg(name);
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var def = {notation: notation.replace(/,/g," ")};
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if (attr) {
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attr = attr.replace(/ /g,"").split(/,/);
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for (var i = 0, m = attr.length; i < m; i++) {
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var keyvalue = attr[i].split(/[:=]/);
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if (ALLOW[keyvalue[0]]) {
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keyvalue[1] = keyvalue[1].replace(/^"(.*)"$/,"$1");
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if (keyvalue[1] === "true") {keyvalue[1] = true}
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if (keyvalue[1] === "false") {keyvalue[1] = false}
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def[keyvalue[0]] = keyvalue[1];
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}
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}
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}
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this.Push(MML.menclose(math).With(def));
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}
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});
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MathJax.Hub.Startup.signal.Post("TeX enclose Ready");
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});
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MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/enclose.js");
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