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//
// LanguageDetector(Swift3.x).swift
// Musubi
//
// Created by はるふ on 2017/07/12.
// Copyright ©ha1f 2017年 line. All rights reserved.
//
import Foundation
struct LanguageDetector {
static let notDetermined = "und"
private let tagger = NSLinguisticTagger(tagSchemes: [NSLinguisticTagSchemeLanguage], options: 0)
// returns BCP-47 format
func detect(_ text: String) -> String {
guard !text.isEmpty else {
return LanguageDetector.notDetermined
}
tagger.string = text
return tagger.tag(at: 0, scheme: NSLinguisticTagSchemeLanguage, tokenRange: nil, sentenceRange: nil) ?? LanguageDetector.notDetermined
}
}
//
// LanguageDetector(Swift4.x).swift
// Musubi
//
// Created by はるふ on 2017/07/12.
// Copyright ©ha1f 2017年 line. All rights reserved.
//
import Foundation
public struct LanguageDetector {
static let undetermined = "und"
private let tagger = NSLinguisticTagger(tagSchemes: [.language], options: 0)
// returns BCP-47 format
func detect(_ text: String) -> String {
guard !text.isEmpty else {
return LanguageDetector.undetermined
}
tagger.string = text
return tagger.tag(at: 0, scheme: .language, tokenRange: nil, sentenceRange: nil) ?? LanguageDetector.undetermined
}
}
//
// LanguageDetectorTests.swift
// MusubiTests
//
// Created by はるふ on 2017/07/12.
// Copyright ©ha1f 2017年 line. All rights reserved.
//
import XCTest
@testable import Musubi
class LanguageDetectorTests: XCTestCase {
let detector = LanguageDetector()
func testDetect() {
let de = "Rom ist nicht an einem Tag erbaut worden"
let ja = "ローマは一日にして成らず"
let fr = "Paris ne s'est pas fait en un jour"
let en = "Rome was not built in a day"
let it = "Roma non fu fatta in un giorno, Roma non è stata costruita in un giorno"
let el = "Η Ρώμη δεν χτίστηκε σε μια μέρα"
let ru = "Москва не сразу строилась"
let zh_Hant = "羅馬非朝夕建成的"
let zh_Hans = "罗马不是一日建成的"
let ko = "로마는 하루아치메 이루어지지 아낟따"
let th = "และจะมีคุณค่า'มากขึ้น'เมื่อเราทำความดีนั้นอย่างสม่ำเสมอ"
XCTAssertEqual(detector.detect(de), "de")
XCTAssertEqual(detector.detect(ja), "ja")
XCTAssertEqual(detector.detect(en), "en")
XCTAssertEqual(detector.detect(fr), "fr")
XCTAssertEqual(detector.detect(it), "it")
XCTAssertEqual(detector.detect(el), "el")
XCTAssertEqual(detector.detect(ru), "ru")
XCTAssertEqual(detector.detect(zh_Hant), "zh-Hant")
XCTAssertEqual(detector.detect(zh_Hans), "zh-Hans")
XCTAssertEqual(detector.detect(ko), "ko")
XCTAssertEqual(detector.detect(th), "th")
}
func testDetectUnd() {
XCTAssertEqual(detector.detect(""), LanguageDetector.notDetermined)
XCTAssertEqual(detector.detect("a"), LanguageDetector.notDetermined)
XCTAssertEqual(detector.detect(""), LanguageDetector.notDetermined)
}
}
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@ha1f ha1f commented Jul 13, 2017

MIT License

Copyright (c) 2016 はるふ

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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@ha1f ha1f commented Jul 14, 2017

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