From 4fb5de2200f73a240b35770e4f26f81f05c30dd9 Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Mon, 20 Feb 2012 12:42:59 -0500
Subject: [PATCH] Move preProcess from base jax to OutputJax, since that is the
 only place it is used.  Don't copy Translate and cousins for ElementJax. 
 Properly handle the loader in InputJax (avoinds infinite lops if input jax
 fails to compile)

---
 MathJax.js          |  2 +-
 unpacked/MathJax.js | 59 +++++++++++++++++++++++++++------------------
 2 files changed, 37 insertions(+), 24 deletions(-)

diff --git a/MathJax.js b/MathJax.js
index f2ed879f6..b80c8a7ca 100644
--- a/MathJax.js
+++ b/MathJax.js
@@ -26,5 +26,5 @@ if (!window.MathJax) {window.MathJax = {}}
 
 MathJax.isPacked = true;
 
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diff --git a/unpacked/MathJax.js b/unpacked/MathJax.js
index c58b5cc46..1763eb609 100644
--- a/unpacked/MathJax.js
+++ b/unpacked/MathJax.js
@@ -366,7 +366,7 @@ MathJax.fileversion = "2.0";
   };
 
   //
-  //  An array of priorities hooks that are executed sequentially
+  //  An array of prioritized hooks that are executed sequentially
   //  with a given set of data.
   //
   var HOOKS = MathJax.Object.Subclass({
@@ -590,6 +590,7 @@ MathJax.fileversion = "2.0";
   BASE.Callback.ExecuteHooks = EXECUTEHOOKS;
 })("MathJax");
 
+
 /**********************************************************/
 
 (function (BASENAME) {
@@ -2033,17 +2034,8 @@ MathJax.Hub.Startup = {
       cObject.Augment(null,cdef);
       return this;
     },
-    preProcess: function (element) {
-      var load, file = this.directory+"/"+this.JAXFILE;
-      this.constructor.prototype.preProcess = function (element) {
-	if (!load.called) {return load}
-        throw Error(file+" failed to load properly");
-      }
-      load = AJAX.Require(file);
-      return load;
-    },
-    Translate: function (element) {
-      throw Error(this.directory+"/"+this.JAXFILE+" failed to redefine the Translate() method");
+    Translate: function (script,state) {
+      throw Error(this.directory+"/"+this.JAXFILE+" failed to define the Translate() method");
     },
     Register: function (mimetype) {},
     Config: function () {
@@ -2067,13 +2059,17 @@ MathJax.Hub.Startup = {
           [function (config,id) {return MathJax.Hub.Startup.loadArray(config.extensions,"extensions/"+id)},this.config||{},this.id],
           ["Post",HUB.Startup.signal,this.id+" Jax Startup"],
           ["Startup",this],
-          ["Post",HUB.Startup.signal,this.id+" Jax Ready"],
-          [function (THIS) {
-            THIS.preProcess  = THIS.preTranslate;
-            THIS.Process     = THIS.Translate;
-            THIS.postProcess = THIS.postTranslate;
-          },this.constructor.prototype]
+          ["Post",HUB.Startup.signal,this.id+" Jax Ready"]
         );
+        if (this.copyTranslate) {
+          queue.Push(
+            [function (THIS) {
+              THIS.preProcess  = THIS.preTranslate;
+              THIS.Process     = THIS.Translate;
+              THIS.postProcess = THIS.postTranslate;
+            },this.constructor.prototype]
+          );
+        }
         return queue.Push(["loadComplete",AJAX,this.directory+"/"+file]);
       }
     }
@@ -2088,20 +2084,27 @@ MathJax.Hub.Startup = {
 
   BASE.InputJax = JAX.Subclass({
     elementJax: "mml",  // the element jax to load for this input jax
-    Process: function (element) {
-      var queue = CALLBACK.Queue();
+    copyTranslate: true,
+    Process: function (script,state) {
+      var queue = CALLBACK.Queue(), file;
       // Load any needed element jax
       var jax = this.elementJax; if (!(jax instanceof Array)) {jax = [jax]}
       for (var i = 0, m = jax.length; i < m; i++) {
-        var file = BASE.ElementJax.directory+"/"+jax[i]+"/"+this.JAXFILE;
+        file = BASE.ElementJax.directory+"/"+jax[i]+"/"+this.JAXFILE;
         if (!this.require) {this.require = []}
           else if (!(this.require instanceof Array)) {this.require = [this.require]};
         this.require.push(file);  // so Startup will wait for it to be loaded
         queue.Push(AJAX.Require(file));
       }
       // Load the input jax
-      var load = queue.Push(AJAX.Require(this.directory+"/"+this.JAXFILE));
-      if (!load.called) {this.constructor.prototype.Process = function () {return load}}
+      file = this.directory+"/"+this.JAXFILE;
+      var load = queue.Push(AJAX.Require(file));
+      if (!load.called) {
+        this.constructor.prototype.Process = function () {
+          if (!load.called) {return load}
+          throw Error(file+" failed to load properly");
+        }
+      }
       // Load the associated output jax
       jax = HUB.outputJax["jax/"+jax[0]];
       if (jax) {queue.Push(AJAX.Require(jax[0].directory+"/"+this.JAXFILE))}
@@ -2125,6 +2128,16 @@ MathJax.Hub.Startup = {
   /***********************************/
 
   BASE.OutputJax = JAX.Subclass({
+    copyTranslate: true,
+    preProcess: function (state) {
+      var load, file = this.directory+"/"+this.JAXFILE;
+      this.constructor.prototype.preProcess = function (state) {
+	if (!load.called) {return load}
+        throw Error(file+" failed to load properly");
+      }
+      load = AJAX.Require(file);
+      return load;
+    },
     Register: function (mimetype) {
       var jax = HUB.outputJax;
       if (!jax[mimetype]) {jax[mimetype] = []}