Extract fenced code blocks from Markdown streams
npm install markdown-code-blocksA through stream that extracts code from Markdown content, optionally selecting
only code blocks of a selected type.
Currently this only works with GFM-style fenced code blocks, I don't have a need
for indentation based blocks (yet). This README file makes a nice example:
``
$ markdown-code-blocks -t javascript < ./README.md
Will output:
`javascript
var fs = require('fs')
var assert = require('assert')
var concat = require('concat-stream')
var markdownCodeBlocks = require('./')
var readme = fs.createReadStream(__dirname + '/README.md', 'utf8')
readme.pipe(markdownCodeBlocks('javascript')).pipe(concat(function (code) {
// Writing code that asserts it's own contents is kind of tricky...
assert.deepEqual(code.toString().split('\n').slice(0, 10), [
"var fs = require('fs')",
"var assert = require('assert')",
"var concat = require('concat-stream')",
"var markdownCodeBlocks = require('./')",
"",
"var readme = fs.createReadStream(__dirname + '/README.md', 'utf8')",
"",
"readme.pipe(markdownCodeBlocks('javascript')).pipe(concat(function (code) {",
" // Writing code that asserts it's own contents is kind of tricky...",
" assert.deepEqual(code.toString().split('\\n').slice(0, 10), ["
])
}))
`
Which you can pipe into node to verify that this module is working:
`
$ markdown-code-blocks -t javascript < README.md | node
`ocaml``
module.exports = (types: String|Array
MIT