Simple CLI around CFStringTransform for Unicode to ASCII transliteration

translit.swift

#!/usr/bin/env swift

//
// Naive wrapper around CFStringTransform that attempts to transliterate
// Unicode strings to lower-case ASCII
//
// http://nshipster.com/cfstringtransform/
//

import Foundation

let stdin = NSFileHandle.fileHandleWithStandardInput()
let data: NSData = stdin.readDataToEndOfFile()

let str = NSString(data: data, encoding: NSUTF8StringEncoding)
let cfstr = str?.mutableCopy() as CFMutableString
var rng = CFRangeMake(0, CFStringGetLength(cfstr))

CFStringTransform(cfstr, &rng, "Any-Latin; Latin-ASCII; Any-Lower", 0)
println(cfstr)