Improvements to extension load_tex_macros.

Compatible with 5.x.
Correctly reprocess mathjax, including resetting equation numbers.
Better readme.

Author: ketch

src/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/load_tex_macros.yaml

@@ -4,4 +4,4 @@ Description: This extension automatically loads a set of latex commands from the
 Link: readme.md
 Icon: icon.png
 Main: main.js
-Compatibility: 4.x
+Compatibility: 4.x, 5.x

src/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/main.js

@@ -7,15 +7,16 @@ define(function(require, exports, module) {
             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]
+              ["resetEquationNumbers",MathJax.InputJax.TeX],
+              ["PreProcess", MathJax.Hub],
+              ["Reprocess", MathJax.Hub]
             );
     }
 

src/jupyter_contrib_nbextensions/nbextensions/load_tex_macros/readme.md

@@ -1,4 +1,17 @@
+
+Purpose
+=======
+This extension loads a tex file whenever a notebook is loaded, then re-runs
+mathjax. It's useful if you have several notebooks that use a common set of latex
+macros, so you don't have to copy the macros to each notebook.
+
 Usage
 =====
 
 Simply put your latex macros in a file named latexdefs.tex, in the same directory as your notebook.
+
+
+Credit
+======
+
+This is derived entirely from the nbextension `jupyter_latex_envs`, with help from its author @jfbercher.