namespace 'net.hashnote.path', (exports) ->
  exports.root = root = (pattern) ->
    ###
    Get root path of script

    Args:
      pattern - a pattern of script name written in <script> src tag

    Example:
      alert(net.hashnote.path.root('jquery(\.min)?\.js'));
    ###
    pattern = new RegExp "(.*)#{pattern}$"
    root = undefined
    $('script').each (a, tag) ->
      match = $(tag).get(0).src.match pattern
      if match?
        root = match[1]
        # remove trailing slush
        return root[0..root.length-1]
    return root
  exports.abspath = abspath = (path, root, prefix='~/') ->
    ###
    Convert relativepath to absolutepath

    Args:
      path - a relativepath
      root - script root path, use ``net.hashnote.path.root`` for find it
      prefix - a prefix string. default is '~/'
    ###
    if path.lastIndexOf('~/', 0) is 0
      path = "#{root}/#{path[2..path.length]}"
    return path