Radix Conversion Nodejs Port

radix.coffee

#RE: https://gist.github.com/1291580
output = []
convert_base = (input,input_len,input_base,output_len,output_base) ->
        output[i] = 0 for i in [0...output_len]
        for i in [0...input_len]
                n = input[i]
                o=0
                for j in [(output_len-1)..0]
                        m = (output[j]*input_base)+o
                        output[j] = m % output_base
                        o = Math.floor(m / output_base)
                o = n
                for j in [(output_len-1)..0]
                        if o == 0
                                break
                        m = output[j] + o
                        output[j] = m % output_base
                        o = Math.floor(m / output_base)
        output

input_base = 256
output_base = 1024
str = "hello, world!"
input_len = str.length
input = (str.charCodeAt(i) for i in [0..input_len-1])
output_len = Math.ceil(input_len * (Math.log(input_base)/Math.log(output_base)))
convert_base(input,input_len,input_base,output_len,output_base)
for i in [0...output_len]
        console.log "output_byte: #{output[i]}"