![]() Run the replacement when the browser is ready.ĭocument. Windows) y-hat Rodeo for Python (current version is 2.4.10) (MacOS, Windows, Linux). That means each code block that is supposed to become a graph has to start with a line that contains %%!mermaid: Atom (MacOS, Windows) TextWrangler (MacOS) nvAlt (MacOS). To distinguish Mermaid graphs from regular code, the sad news is this: we’ll have to add a hashbang-like “block syntax identifier”. Only afterwards will we let Mermaid do its job. Then we replace the whole block with a block to prevent syntax highlighters to interfere. JavaScript offers element.innerText for this, so that’s simple. This means we’re going to look for all tags and then take the plain text out of it, ignoring any other HTML tags inside. Sadly, I have code syntax highlighters installed and I think the default behavior of a Markdown-to-HTML-converter is to translate indented blocks of text to a tag nested inside a tag. Mermaid isn’t clever enough to skip HTML tags inside, so we have to make sure the Markdown converter doesn’t mess with the stuff. Mermaid looks for tags with the mermaid class and then uses the text contents as input for its graph rendering. Explanation of the Pocess for the Savvy Reader If you don’t understand a word of HTML or JavaScript, then just follow the step-by-step guide and skip the explanation. This, in turn, makes Mermaid setup a bit more complicated, because we have to remove all the code-iness of verbatim blocks that Markdown-to-HTML-converters usually insert. I indent the graph definitions so they render as verbatim (or “code”) blocks by default when no Mermaid is installed. The ASCII-arrows are good enough to be readable. Sunt in culpa qui officia deserunt mollit anim id est laborum. Sed do eiusmod tempor incididunt ut labore et dolore magnaĭuis aute irure dolor in reprehenderit in voluptate velitĮsse cillum dolore eu fugiat nulla pariatur.Įxcepteur sint occaecat cupidatat non proident, Lorem ipsum dolor sit amet, consectetur adipisicing elit, I am fine with a piece of my note looking like the following (Latin aside): The plain text syntax of Mermaid is okay and sufficiently readable to stand as-is. Maybe you’ll want to ask your neighboring teenager to do that for you. You have to paste a bit of code in an HTML file. Nevertheless, tweaking the template is a bit more advanced than downloading files. If you don’t, nvALT will still render HTML in the browser window skip to the end for a Markdown-less mini tutorial. NvALT and I both assume you write your notes in Markdown to make the following work. Mermaid is such a thing: it’s a JavaScript library that renders flow charts from plain text graph definitions. ![]() That enables you to include a lot of modern web technology in your note previews. NvALT’s Markdown preview uses a browser to display HTML output of your note. Displaying Flow Charts in nvALT's Preview Window Using Mermaid.js
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