commit a66c5f2763c4541338d17b5a65e6ee33d2fad324
parent 2e022a6631e67539e0ec66eae1550a8dbbc5249d
Author: Davide P. Cervone <dpvc@union.edu>
Date: Wed, 26 Oct 2011 00:10:29 -0400
Add cancel package defining \cancel{math}, \bcancel{math}, \xcancel{math}, and \canelto{value}{math}
Diffstat:
2 files changed, 121 insertions(+), 0 deletions(-)
diff --git a/extensions/TeX/cancel.js b/extensions/TeX/cancel.js
@@ -0,0 +1,16 @@
+/*
+ * /MathJax/extensions/TeX/cancel.js
+ *
+ * Copyright (c) 2010 Design Science, Inc.
+ *
+ * Part of the MathJax library.
+ * See http://www.mathjax.org for details.
+ *
+ * Licensed under the Apache License, Version 2.0;
+ * you may not use this file except in compliance with the License.
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+MathJax.Extension["TeX/cancel"]={version:"1.1",ALLOWED:{arrow:1,color:1,mathcolor:1,background:1,mathbackground:1,padding:1,thickness:1}};MathJax.Hub.Register.StartupHook("TeX Jax Ready",function(){var d=MathJax.InputJax.TeX,c=d.Definitions.macros,a=MathJax.ElementJax.mml,b=MathJax.Extension["TeX/cancel"];b.setAttributes=function(j,f){if(f!==""){f=f.replace(/ /g,"").split(/,/);for(var h=0,e=f.length;h<e;h++){var g=f[h].split(/[:=]/);if(b.ALLOWED[g[0]]){if(g[1]==="true"){g[1]=true}if(g[1]==="false"){g[1]=false}j[g[0]]=g[1]}}}return j};c.cancel=["Cancel",a.NOTATION.UPDIAGONALSTRIKE];c.bcancel=["Cancel",a.NOTATION.DOWNDIAGONALSTRIKE];c.xcancel=["Cancel",a.NOTATION.UPDIAGONALSTRIKE+" "+a.NOTATION.DOWNDIAGONALSTRIKE];c.cancelto="CancelTo";d.Parse.Augment({Cancel:function(f,h){var e=this.GetBrackets(f),g=this.ParseArg(f);var i=b.setAttributes({notation:h},e);this.Push(a.menclose(g).With(i))},CancelTo:function(f,h){var j=this.ParseArg(f),e=this.GetBrackets(f),g=this.ParseArg(f);var i=b.setAttributes({notation:a.NOTATION.UPDIAGONALSTRIKE,arrow:true},e);j=a.mpadded(j).With({depth:"-.1em",height:"+.1em",voffset:".1em"});this.Push(a.msup(a.menclose(g).With(i),j))}});MathJax.Hub.Startup.signal.Post("TeX cancel Ready")});MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/cancel.js");
+
diff --git a/unpacked/extensions/TeX/cancel.js b/unpacked/extensions/TeX/cancel.js
@@ -0,0 +1,105 @@
+/*************************************************************
+ *
+ * MathJax/extensions/TeX/cancel.js
+ *
+ * Implements the \cancel, \bcancel, \xcancel, and \cancelto macros.
+ *
+ * Usage:
+ *
+ * \cancel{math} % strikeout math from lower left to upper right
+ * \bcancel{math} % strikeout from upper left to lower right
+ * \xcancel{math} % strikout with an X
+ * \cancelto{value}{math} % strikeout with arrow going to value
+ *
+ * ---------------------------------------------------------------------
+ *
+ * Copyright (c) 2011 Design Science, Inc.
+ *
+ * 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.
+ */
+
+MathJax.Extension["TeX/cancel"] = {
+ version: "1.1",
+
+ //
+ // The attributes allowed in \enclose{notation}[attributes]{math}
+ //
+ ALLOWED: {
+ arrow: 1,
+ color: 1, mathcolor: 1,
+ background: 1, mathbackground: 1,
+ padding: 1,
+ thickness: 1
+ }
+};
+
+MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
+ var TEX = MathJax.InputJax.TeX,
+ MACROS = TEX.Definitions.macros,
+ MML = MathJax.ElementJax.mml,
+ CANCEL = MathJax.Extension["TeX/cancel"];
+
+ CANCEL.setAttributes = function (def,attr) {
+ if (attr !== "") {
+ attr = attr.replace(/ /g,"").split(/,/);
+ for (var i = 0, m = attr.length; i < m; i++) {
+ var keyvalue = attr[i].split(/[:=]/);
+ if (CANCEL.ALLOWED[keyvalue[0]]) {
+ if (keyvalue[1] === "true") {keyvalue[1] = true}
+ if (keyvalue[1] === "false") {keyvalue[1] = false}
+ def[keyvalue[0]] = keyvalue[1];
+ }
+ }
+ }
+ return def;
+ };
+
+ //
+ // Set up macro
+ //
+ MACROS.cancel = ['Cancel',MML.NOTATION.UPDIAGONALSTRIKE];
+ MACROS.bcancel = ['Cancel',MML.NOTATION.DOWNDIAGONALSTRIKE];
+ MACROS.xcancel = ['Cancel',MML.NOTATION.UPDIAGONALSTRIKE+" "+MML.NOTATION.DOWNDIAGONALSTRIKE];
+ MACROS.cancelto = 'CancelTo';
+
+ TEX.Parse.Augment({
+ //
+ // Implement \cancel[attributes]{math},
+ // \bcancel[attributes]{math}, and
+ // \xcancel[attributes]{math}
+ //
+ Cancel: function(name,notation) {
+ var attr = this.GetBrackets(name), math = this.ParseArg(name);
+ var def = CANCEL.setAttributes({notation: notation},attr);
+ this.Push(MML.menclose(math).With(def));
+ },
+
+ //
+ // Implement \cancelto{value}[attributes]{math}
+ //
+ CancelTo: function(name,notation) {
+ var value = this.ParseArg(name),
+ attr = this.GetBrackets(name),
+ math = this.ParseArg(name);
+ var def = CANCEL.setAttributes({notation: MML.NOTATION.UPDIAGONALSTRIKE, arrow:true},attr);
+ value = MML.mpadded(value).With({depth:"-.1em",height:"+.1em",voffset:".1em"});
+ this.Push(MML.msup(MML.menclose(math).With(def),value));
+ }
+
+ });
+
+ MathJax.Hub.Startup.signal.Post("TeX cancel Ready");
+
+});
+
+MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/cancel.js");
