Created
August 4, 2017 12:18
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// | |
// main.swift | |
// half2full | |
// | |
// Created by eien.support@gmail.com on 2017/08/02. | |
// Copyright © 2017年 Eien Factory. All rights reserved. | |
// | |
import Foundation | |
func fileHandle(path:String) -> NSFileHandle? { | |
let url = NSURL(fileURLWithPath: path) | |
return NSFileHandle(forReadingAtPath: url.path!) | |
} | |
let args = Process.arguments | |
var inputHandle: NSFileHandle? | |
var toFull = true | |
for i in 1..<args.count { | |
let arg = args[i] | |
if arg == "-r" { | |
toFull = false | |
continue | |
} | |
if arg.hasPrefix("-") { | |
continue | |
} | |
if arg.hasPrefix("+") { | |
continue | |
} | |
inputHandle = fileHandle(arg) | |
if inputHandle != nil { | |
break | |
} | |
} | |
let standardInput = inputHandle ?? NSFileHandle.fileHandleWithStandardInput() | |
let standardOut = NSFileHandle.fileHandleWithStandardOutput() | |
while true { | |
let input = standardInput.availableData | |
if input.length == 0 { break } | |
let dataString = NSString(data:input, encoding:NSUTF8StringEncoding) | |
let str = dataString?.mutableCopy() as! NSMutableString | |
CFStringTransform(str, nil, kCFStringTransformFullwidthHalfwidth, toFull) | |
if let out = str.dataUsingEncoding(NSUTF8StringEncoding) { | |
standardOut.writeData(out) | |
} | |
} | |
standardOut.writeData(NSString(string: "\n").dataUsingEncoding(NSUTF8StringEncoding)!) |
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