   .option '    --strip-colors',           'remove all color characters'
   .option '-k, --keys <keys>',            'report only numbers of the given keys', list
   .option '-d, --details',                'report stats of each analized file'
+  .option '-a, --alias <custom ext>=<standard ext>', 'alias custom ext to act like standard ext', object
 
 programm.parse process.argv
 options.keys        = programm.keys
 options.details     = programm.details
+options.alias       = programm.alias
 
 return programm.help() if programm.args.length < 1
 

    if err
      res.badFile = yes
      return cb err, res
    res.stats = sloc code, path.extname(f)[1...]
    cb null, res

print = (err, result, opts, fmtOpts) ->

fmts      = require './formatters'

list = (val) -> val.split ','
keyvalue = (val) -> val.split '='
object = (val) ->
  result = {}
  for split in list(val).map(keyvalue)
    [custom, original] = split
    result[custom] = original
  result
exts = ("*.#{k}" for k in sloc.extensions)

collect = (val, memo) ->
