postcss-markdown

PostCSS Markdown Syntax

PostCSS syntax for parsing Markdown

Getting Started

First thing's first, install the module:

npm install postcss-markdown@next --save-dev

If you want support SCSS/SASS/LESS/SugarSS syntax, you need to install the corresponding module.

• SCSS: postcss-scss
• SASS: postcss-sass
• LESS: postcss-less
• SugarSS: sugarss
• Stylus: postcss-styl

Use Cases

const postcss = require("postcss");
const syntax = require("postcss-markdown")({
    // Enable support for HTML (default: true) See: https://github.com/gucong3000/postcss-html
    htmlInMd: true,
    // syntax for parse scss (non-required options)
    scss: require("postcss-scss"),
    // syntax for parse less (non-required options)
    less: require("postcss-less"),
    // syntax for parse css blocks (non-required options)
    css: require("postcss-safe-parser"),
});
const autoprefixer = require("autoprefixer");
postcss([autoprefixer])
    .process(source, { syntax: syntax })
    .then(function (result) {
        // An alias for the result.css property. Use it with syntaxes that generate non-CSS output.
        result.content;
    });

input:

# title

```css
::placeholder {
    color: gray;
}
```

output:

# title

```css
::-webkit-input-placeholder {
    color: gray;
}
:-ms-input-placeholder {
    color: gray;
}
::-ms-input-placeholder {
    color: gray;
}
::placeholder {
    color: gray;
}
```

If you want support SCSS/SASS/LESS/SugarSS syntax, you need to install these module:

• SCSS: postcss-scss
• SASS: postcss-sass
• LESS: postcss-less
• SugarSS: sugarss
• Stylus: postcss-styl

Advanced Use Cases

Options

const options = {
    rules: [
        {
            // custom language
            test: /^postcss$/i,
            lang: "scss",
        },
        {
            // custom language
            test: /^customcss$/i,
            lang: "custom",
        },
    ],

    // custom parser for CSS (using `postcss-safe-parser`)
    css: "postcss-safe-parser",
    // custom parser for SASS (PostCSS-compatible syntax.)
    sass: require("postcss-sass"),
    // custom parser for SCSS (by module name)
    scss: "postcss-scss",
    // custom parser for LESS (by module path)
    less: require.resolve("./node_modules/postcss-less"),
    // custom parser for SugarSS
    sugarss: require("sugarss"),
    // custom parser for custom language
    custom: require("postcss-custom-syntax"),
};
const syntax = require("postcss-markdown")(options);

Linting with Stylelint

The main use case of this plugin is to apply linting with Stylelint to CSS (and CSS-like) code blocks in markdown file.