Add an extra dimension to your markdown documents
I love markdown, but I’ve always wanted to use it to write more than just “flat” documents. Structured Markdown is an extension to markdown syntax that allows for nesting and styling within markdown documents. So, how does it work?
SMD is currently a python module that parses SMD into formatted html and css. Currently, the module uses mistune to parse the markdown parts of .smd documents. The general idea is that a static site could use these easy-to-write SMD files in place of html templates or the like. If you’re wondering what makes SMD so special, jump down to the SMD vs MD section.
Well, I finally got it working with pip, so
pip install structured-markdown
will now work! (I’m using Python >= 3.7, btw.)
If you want to build from source, simply:
git clone https://github.com/Structured-Markdown/structured_markdown.git cd structured_markdown pip install .
(At least, that’s what works for me.)
You may also need to install mistune, a markdown parser.
pip install mistune
Remember to use pip3 if your working with Python 3. I always forget to use pip3, so I thought you might like a little reminder 👍.
To use SMD in your project, import it like so:
import structured_markdown as smd
The main purpose of SMD is to parse .smd documents. This is pretty simple in structured_markdown:
with open("example.smd", "r") as fin: inp = fin.read() html, css = smd.parse(inp)
if you wish to get back only html or css, do the following:
html = smd.parse(inp, html=True) css = smd.parse(inp, css=True)
I’m planning to add templating capabilities to SMD, but it’s not done yet 😔.
SMD vs MD
All squares are rectangles, but not all rectangles are squares. The same can be said of SMD - All Markdown documents are valid SMD documents, but not necessarily the other way around. With that out of the way, what’s the difference?
A SMD document is made of layers. Each layer has a name, and can contain markdown content and/or other layers.
layer welcome: # Welcome to Structured-Markdown! this is markdown embedded within a layer.
This is a block of markdown within a layer whose name is welcome. Here is the equivalent html.
<div class=<s>'root'</s>> <div class=<s>'welcome'</s>> <h1>Welcome to Structured-Markdown!</h1> <p>this is markdown embedded within a layer.</p> </div> </div>
Essentially, a layer is a div, the layer name being the div‘s class. Everything is put into a root div before the parsed SMD is returned.
Nesting is pretty simple:
layer welcome: # Welcome to Structured-Markdown! this is markdown embedded within a layer. layer nested: hey, this is nested more markdown after the nesting
<div class=<s>'root'</s>> <div class=<s>'welcome'</s>> <h1>Welcome to Structured-Markdown!</h1> <p>this is markdown embedded within a layer.</p> <div class=<s>'welcome'</s>> <p>hey, this is nested</p> </div> <p>more markdown after the nesting</p> </div> </div>
Where it really shines is when text is wrapped in complex formatting, like this navbar example:
layer navbar: layer logotype: # Templating Engine layer navlinks: 1. [blog](/blog) 2. [about](/about) 3. [projects](/projects)
Note that the expanded html is longer and more verbose.
<div class=<s>'root'</s>> <div class=<s>'navbar'</s>> <div class=<s>'logotype'</s>> <h1>Templating Engine</h1> </div> <div class=<s>'navlinks'</s>> <ol> <li><a href=<s>"/blog"</s>>blog</a></li> <li><a href=<s>"/about"</s>>about</a></li> <li><a href=<s>"/projects"</s>>projects</a></li> </ol> </div> </div> </div>
So, what about styling? I was feeling a bit lazy, and had to refactor a lot of code to introduce styling, so for now it’s practically a one to one mapping to css. Here’s what styling looks like:
style layer: border = 1px solid font-family = sans-serif
use the style keyword to indent a style block - then, for each line in the style block, put the element on the left, followed by an equals sign, followed by the attribute.
style layer.navbar: background-color = #fff
All normal css selectors should work, note that you should use the word layer instead of div. (You can still use div if you’d like, layer makes it look more readable.)
layer.navbar a:hover: color = #888
When parsed, SMD style blocks are fully transpiled into css. Hopefully, in the future I’ll’ve implemented a better styling system, but this is what’s here to stay for now.
That’s about it for now. Not all features are implemented as this is still a WIP.
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