Convert .nc file to Markdown..

narkcown.coffee

#!/usr/bin/coffee

fs = require 'fs'
chars = ['>', '-', '*', ' ', '+']
ss = '  '

if process.argv[2]? then filename = process.argv[2]
else
  console.log 'You need to name one file here --!'
  do process.exit

if (match = filename.match /(.+.)nc$/)?
  new_filename = match[1]+'md'
else
  console.log 'unrecognized subfix, supposed to `.nc`'
  do process.exit

nc2md = (file) ->
  list = file.split '\n'
  list = list.map (line) ->
    line = line.trimRight()
    if line is '\\' then '<br>'
    else if line.length <= 2 then line
    else if line[0..1] is ss then ss+line else line+ss
  copy = []
  normal = true
  for line in list
    plain =
      if not line[0]? then 2 else
        if line[0] in chars then -1 else 1
    copy.push '' if (plain + normal) is 0
    copy.push line
    normal = plain
  copy.join '\n'

fs.readFile filename, 'utf-8', (err, file) ->
  throw err if err?
  md = nc2md file
    
  fs.writeFile new_filename, md, 'utf-8', ->
    console.log 'Finished :::', new_filename