New extension: load_tex_macros.

Author: ketch

src/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/icon.png

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+Type: IPython Notebook Extension
+Name: Load TeX macros
+Description: This extension automatically loads a set of latex commands from the file latexdefs.tex when a notebook is opened.
+Link: readme.md
+Icon: icon.png
+Main: main.js
+Compatibility: 4.x

src/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/load_tex_macros.yaml

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+define(function(require, exports, module) {
+    var Jupyter = require('base/js/namespace');
+
+    function loadLatexUserDefs() { 
+        $.get('latexdefs.tex').done(function(data) {
+            data = data.replace(/^/gm, '\$\$\$').replace(/$/gm, '\$\$\$');
+            if ($('#latexdefs').length > 0) $('#latexdefs').remove();
+            $('body').append($('<div/>').attr('id', 'latexdefs').text(data));
+            console.log('latex_envs: loaded user LaTeX definitions latexdefs.tex');
+            onMarkdownCellRendering();
+        }).fail(function() {
+            console.log('load_tex_macros: failed to load user LaTeX definitions latexdefs.tex')
+        });
+    }
+
+    function rerenderMaths() { // probably something like that
+            MathJax.Hub.Queue(
+              ["PreProcess", MathJax.Hub], ["Reprocess", MathJax.Hub]
+            );
+    }
+
+    function load_ipython_extension() {
+         "use strict";
+       
+        if (Jupyter.notebook._fully_loaded) {  
+            loadLatexUserDefs();       
+            rerenderMaths(); 
+        } else {
+            $([Jupyter.events]).on("notebook_loaded.Notebook", function() {
+                      loadLatexUserDefs();   
+                      rerenderMaths();  
+            })
+        }
+    }
+    return {
+            load_ipython_extension: load_ipython_extension,
+    };
+})

src/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/main.js

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+Usage
+=====
+
+Simply put your latex macros in a file named latexdefs.tex, in the same directory as your notebook.