Github Flavored Markdown in Node.js

command

cake markdown

to-markdown.coffee

{spawn, exec} = require('child_process')

task 'markdown', ->
  command   = spawn 'ruby', ["./to-markdown.rb"]
  command.stdout.setEncoding('utf8')
  command.stdout.on 'data', (data) -> 
    console.log data #=> <p><strong>Hello World</strong></p>
  command.stdout.setEncoding('utf8')
  command.stderr.on 'data', (data) -> 
    console.log "error"
    console.log data.toString().trim()
  command.stdin.write JSON.stringify(input: "**Hello World**")
  command.stdin.end()

to-markdown.rb

require 'rubygems'
require 'redcarpet'
require 'json'

STDOUT.sync = true
io          = STDOUT
json        = JSON.parse(STDIN.read)
input       = json.delete("input")
markdown    = Redcarpet::Markdown.new(Redcarpet::Render::HTML, :autolink => true, :space_after_headers => true, :fenced_code_blocks => true)
io.write    markdown.render(input)