From 8971f378f55b977c70cb9a89431683955e22f68d Mon Sep 17 00:00:00 2001
From: dpvc <dpvc@b8fd5906-0fad-46e2-a0d3-10d94ff285d1>
Date: Wed, 29 Sep 2010 03:36:41 +0000
Subject: [PATCH] Add ability to pass parameters to the script that loads
 MathJax (via MathJax.js?name=value&name=value&... in the URL).  Implement
 config=file parameter as a method of specifying the configuration file.

git-svn-id: https://mathjax.svn.sourceforge.net/svnroot/mathjax/trunk@619 b8fd5906-0fad-46e2-a0d3-10d94ff285d1
---
 mathjax/MathJax.js          |  4 ++--
 mathjax/unpacked/MathJax.js | 23 ++++++++++++++++++++---
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/mathjax/MathJax.js b/mathjax/MathJax.js
index da45f0a86..d9340b6c6 100644
--- a/mathjax/MathJax.js
+++ b/mathjax/MathJax.js
@@ -37,7 +37,7 @@ MathJax.Unpack = function (data) {
 MathJax.isPacked = true;
 
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diff --git a/mathjax/unpacked/MathJax.js b/mathjax/unpacked/MathJax.js
index eac4579d1..aec75cda5 100644
--- a/mathjax/unpacked/MathJax.js
+++ b/mathjax/unpacked/MathJax.js
@@ -1471,8 +1471,17 @@ MathJax.Hub.Startup = {
         if (user.Config) {MathJax.userConfig = new Function(user.Config)}
       } else {MathJax.HTML.Cookie.Set("user",{})}
     }
-    if (this.script.match(/\S/)) {this.queue.Push(this.script+";\n1;")}
-      else {this.queue.Push(["Require",MathJax.Ajax,this.URL("config","MathJax.js")])}
+    if (this.script.match(/\S/)) {
+      this.queue.Push(this.script+";\n1;");
+    } else if (this.params.config) {
+      var files = this.params.config.split(/,/);
+      for (var i = 0, m = files.length; i < m; i++) {
+        if (!files[i].match(/\.js$/)) {files[i] += ".js"}
+        this.queue.Push(["Require",MathJax.Ajax,this.URL("config",files[i])]);
+      }
+    } else {
+      this.queue.Push(["Require",MathJax.Ajax,this.URL("config","MathJax.js")]);
+    }
     return this.queue.Push(
       [function (config,onload) {
         if (config.delayStartupUntil.isCallback) {return config.delayStartupUntil}
@@ -1796,10 +1805,18 @@ MathJax.Hub.Startup = {
   var HEAD = document.getElementsByTagName("head")[0];
   if (!HEAD) {HEAD = document.childNodes[0]};
   var scripts = (document.documentElement || document).getElementsByTagName("script");
-  var namePattern = new RegExp("(^|/)"+BASENAME+"\\.js$");
+  var namePattern = new RegExp("(^|/)"+BASENAME+"\\.js(\\?.*)?$");
   for (var i = scripts.length-1; i >= 0; i--) {
     if (scripts[i].src.match(namePattern)) {
       STARTUP.script = scripts[i].innerHTML;
+      if (RegExp.$2 !== "") {
+        STARTUP.params = {};
+        var params = RegExp.$2.substr(1).split(/\&/);
+        for (var j = 0, m = params.length; j < m; j++) {
+          var KV = params[j].match(/(.*)=(.*)/);
+          if (KV) {STARTUP.params[unescape(KV[1])] = unescape(KV[2])}
+        }
+      }
       CONFIG.root = scripts[i].src.replace(/(^|\/)[^\/]*$/,'');
       break;
     }