Add \bbox macro that allows you to set background colors, padding, and borders for math formulas

extensions/TeX/bbox.js

@@ -0,0 +1,16 @@
+/*
+ *  /MathJax/extensions/TeX/bbox.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/bbox"]={version:"1.1"};MathJax.Hub.Register.StartupHook("TeX Jax Ready",function(){var b=MathJax.InputJax.TeX,a=MathJax.ElementJax.mml;b.Definitions.macros.bbox="BBox";b.Parse.Augment({BBox:function(e){var n=this.GetBrackets(e),m=this.ParseArg(e);var j=n.split(/,/),g,d,c;for(var k in j){var f=j[k].replace(/^\s+/,"").replace(/\s+$/,"");var l=f.match(/^(\.\d+|\d+(\.\d*)?)(pt|em|ex|mu|px|in|cm|mm)$/);if(l){var h=l[1]+l[3];if(g){b.Error("Padding specified twice in "+e)}g={height:"+"+h,depth:"+"+h,lspace:h,width:"+"+(2*l[1])+l[3]}}else{if(f.match(/^([a-z0-9]+|\#[0-9a-f]{6}|\#[0-9a-f]{3})$/i)){if(d){b.Error("Background specified twice in "+e)}d=f}else{if(f.match(/^[-a-z]+:/i)){if(c){b.Error("Style specified twice in "+e)}c=f}else{if(f!==""){b.Error("'"+f+"' doesn't look like a color, a padding dimension, or a style")}}}}}if(g){m=a.mpadded(m).With(g)}if(d||c){m=a.mstyle(m).With({mathbackground:d,style:c})}this.Push(m)}});MathJax.Hub.Startup.signal.Post("TeX bbox Ready")});MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/bbox.js");
+

jax/input/TeX/config.js

@@ -12,5 +12,5 @@
  *      http://www.apache.org/licenses/LICENSE-2.0
  */
 
-MathJax.InputJax.TeX=MathJax.InputJax({id:"TeX",version:"1.1.1",directory:MathJax.InputJax.directory+"/TeX",extensionDir:MathJax.InputJax.extensionDir+"/TeX",config:{TagSide:"right",TagIndent:"0.8em",MultLineWidth:"85%"}});MathJax.InputJax.TeX.Register("math/tex");MathJax.InputJax.TeX.loadComplete("config.js");
+MathJax.InputJax.TeX=MathJax.InputJax({id:"TeX",version:"1.1.2",directory:MathJax.InputJax.directory+"/TeX",extensionDir:MathJax.InputJax.extensionDir+"/TeX",config:{TagSide:"right",TagIndent:"0.8em",MultLineWidth:"85%"}});MathJax.InputJax.TeX.Register("math/tex");MathJax.InputJax.TeX.loadComplete("config.js");
 

unpacked/extensions/TeX/bbox.js

@@ -0,0 +1,90 @@
+/*************************************************************
+ *
+ *  MathJax/extensions/TeX/bbox.js
+ *  
+ *  This file implements the \bbox macro, which creates an box that
+ *  can be styled (for background colors, and so on).  You can include
+ *  an optional dimension that tells how much extra padding to include
+ *  around the bounding box for the mathematics, or a color specification 
+ *  for the background color to use, or both.  E.g.,
+ *  
+ *    \bbox[2pt]{x+y}        %  an invisible box around x+y with 2pt of extra space
+ *    \bbox[green]{x+y}      %  a green box around x+y
+ *    \bbox[green,2pt]{x+y}  %  a green box with 2pt of extra space
+ *
+ *  You can also specify style attributes, for example
+ *  
+ *    \bbox[red,border:3px solid blue,5px]{x+y}
+ *  
+ *  would give a red background with a 3px solid blue border that has 5px
+ *  of padding between the border and the mathematics.  Note that not all
+ *  output formats support the style specifications.  In particular, the
+ *  NativeMML output depends on the browser to render the attributes, and
+ *  not all MathML renderers will honor them (e.g., MathPlayer2 doesn't
+ *  render border styles).
+ *  
+ *  This file will be loaded automatically when \bbox is first used.
+ *
+ *  ---------------------------------------------------------------------
+ *  
+ *  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/bbox"] = {
+  version: "1.1"
+};
+
+MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
+
+  var TEX = MathJax.InputJax.TeX,
+      MML = MathJax.ElementJax.mml;
+       
+  TEX.Definitions.macros.bbox = "BBox";
+  
+  TEX.Parse.Augment({
+    BBox: function (name) {
+      var bbox = this.GetBrackets(name),
+          math = this.ParseArg(name);
+      var parts = bbox.split(/,/), def, background, style;
+      for (var i in parts) {
+        var part = parts[i].replace(/^\s+/,'').replace(/\s+$/,'');
+        var match = part.match(/^(\.\d+|\d+(\.\d*)?)(pt|em|ex|mu|px|in|cm|mm)$/);
+        if (match) {
+          var pad = match[1]+match[3];
+          if (def) {TEX.Error("Padding specified twice in "+name)}
+          def = {height:"+"+pad, depth:"+"+pad, lspace:pad, width:"+"+(2*match[1])+match[3]};
+        } else if (part.match(/^([a-z0-9]+|\#[0-9a-f]{6}|\#[0-9a-f]{3})$/i)) {
+          if (background) {TEX.Error("Background specified twice in "+name)}
+          background = part;
+        } else if (part.match(/^[-a-z]+:/i)) {
+          if (style) {TEX.Error("Style specified twice in "+name)}
+          style = part;
+        } else if (part !== "") {
+          TEX.Error("'"+part+"' doesn't look like a color, a padding dimension, or a style");
+        }
+      }
+      if (def) {math = MML.mpadded(math).With(def)}
+      if (background || style) {
+        math = MML.mstyle(math).With({mathbackground:background, style:style});
+      }
+      this.Push(math);
+    }
+  });
+
+  MathJax.Hub.Startup.signal.Post("TeX bbox Ready");
+
+});
+
+MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/bbox.js");

unpacked/jax/input/TeX/config.js

@@ -24,7 +24,7 @@
 
 MathJax.InputJax.TeX = MathJax.InputJax({
   id: "TeX",
-  version: "1.1.1",
+  version: "1.1.2",
   directory: MathJax.InputJax.directory + "/TeX",
   extensionDir: MathJax.InputJax.extensionDir + "/TeX",
   

unpacked/jax/input/TeX/jax.js

@@ -857,7 +857,7 @@
         'class':           ['Extension','HTML'],
         style:             ['Extension','HTML'],
         cssId:             ['Extension','HTML'],
-//      bbox:              ['Extension','bbox'],
+        bbox:              ['Extension','bbox'],
     
         require:            'Require'