How to fix the `\\` problem?

[vanabel]

When I use mathjax to render math formula, in which \\ means new line, but when I export the markdown doc to html, the \\ has been transformed into \, I think this is done by markdown automatically?

How to fix it?

[benweet]

Hi @vanabel Yes, that's done by markdown, you can't avoid that. Are you still disabling MathJax extension before exporting to html? If so, that's not a good practice.

[vanabel]

I don't want to use your method as:

1. the code rendered by mathjax is quite complicated, if I want to correct some typo in the formula, I almost don't know where to locate it in wp-editor, of course I can do this in stackedit, but I need to export them all to wp again.
2. In wp, I have write a plugin to extend to ability of mathjax, which makes to publish my article from latex doc to wp almost without any modification. So, I prefer to raw latex code (rather than the code rendered by mathjax).

If in any case, I have some misunderstanding, then please tell me, I really fell inconvenient to disable and resume mathjax angain and agian.

[benweet]

Please have a look into this. If you export the HTML output, then you will have the MathJax_Display div block AND the MathJax-Element script block. So you have two options:

• The first one is to keep the MathJax_Display as it is and eventually apply some css on it, but that's not what you want.
• The second one is to regenerate the MathJax_Display from the MathJax-Element script block by running MathJax again on your blog.

With the second option, you can modify from your editor the script block which contains the raw latex code. MathJax will recreate MathJax_Display according to it. You can also modify the latex code in StackEdit and click the "publish button" in the navigation bar to update your blog in one click.

[vanabel]

You mean you will work this(the second option is attractive!)? thks a lot!!

[benweet]

That's already implemented. The HTML output contains both MathJax_Display div block and MathJax-Element script block. Those are 2 options for your blog.

[vanabel]

I don't get it, did you mean that I can keep only the Mathjax-Element block in the final export? How to do this?

[benweet]

No, that's not what I meant. But you can do that as a 3rd option. To do that, you need to use the template output.

In Settings->Publish->Template, you can customize the template output. For instance you can modify the documentHTML variable to remove the MathJax, MathJax_Display, MathJax_Preview elements like that:

<%
var output = $("<div>").html(documentHTML);
output.find(".MathJax, .MathJax_Display, .MathJax_Preview").remove();
print(output.html());
%>

You can even revert the MathJax-Element script blocks into Tex with delimiters like that:

<%
var output = $("<div>").html(documentHTML);
output.find(".MathJax, .MathJax_Display, .MathJax_Preview").remove();
output.find('script[type="math/tex"]').each(function() { $(this).replaceWith('\\(' + this.innerHTML + '\\)'); });
output.find('script[type="math/tex; mode=display"]').each(function() { $(this).replaceWith('\\[' + this.innerHTML + '\\]'); });
print(output.html());
%>

Then you need to use Template as output when publishing.

[vanabel]

It's awesome, fantastic, that's so great!! I only need to add two more classes in your 2nd script, i.e., .MathJax_SVG and .MathJax_SVG_Display, then the export by template will be what I exact like. Thanks a lot!!!

[vanabel]

I recommend to make the preview HTML code only preserve the LaTeX code, just as I can configure in template, is there somewhere I can configure it for HTML code?

[benweet]

No, but I can add a configuration in the HTML code extension...

[benweet]

Added template configuration in the extension settings.

[vanabel]

@benweet May I point out that your default configuration of display math have some typo? The \[ and \]in display math should be \\[ and \\] respectively.

[benweet]

Yes, you're right! I just changed the default settings... Thank you for your point.

[vanabel]

I find that Html code view is not only preview the latex code, even when I setting it in template!

[benweet]

Can you give more detail?

[vanabel]

I want to set the template output as

<%
var output = $("<div>").html(documentHTML);
output.find(".MathJax, .MathJax_Display, .MathJax_Preview").remove();
output.find('script[type="math/tex"]').each(function() { $(this).replaceWith('\\(' + this.innerHTML + '\\)'); });
output.find('script[type="math/tex; mode=display"]').each(function() { $(this).replaceWith('\\[' + this.innerHTML + '\\]'); });
print(output.html());
%>

such that the exported html file is not include the rendered latex code, but the original input form of latex.