This is a work in progress.

It adds a post-processing hook as a keyword argument that allows you to pass arbitrary functions which can modify the result just before it is outputted. It's a bit of a sledgehammer, but it has proven useful when I use Latexify for stuff that is automatically deployed to the web. In some cases, I have had to add additional escape characters or change the newline specification and this post-processing hook allows me to do that.

function post_processing(str)
    str = replace(str, raw"\\"=>raw"\newline")
    return str
end

latexify(something; post_processing = post_processing)