问题描述
我正在尝试使用 NSDataDetector
来处理字符串中的地址.我看过 NSHipster在 NSDataDetector
上的文章以及 Apple的NSDataDetector文档.我有以下方法可以将地址从字符串中拉出:
I'm attempting to use NSDataDetector
to addresses from a string. I've taken a look at NSHipster's article on NSDataDetector
as well as Apple's NSDataDetector documentation. I've got the following method to the point where it'll pull addresses out of a string:
func getAddress(from dataString: String) -> [String] {
let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.address.rawValue)
let matches = detector.matches(in: dataString, options: [], range: NSRange(location: 0, length: dataString.utf16.count))
var addressArray = [String]()
// put matches into array of Strings
for match in matches {
let address = (dataString as NSString).substring(with: match.range)
addressArray.append(address)
}
return addressArray
}
我想提取地址的元素,而不是整个地址.在数据检测器匹配类型中的 NSHipster的 NSDataDetector
帖子中.部分,我看到了诸如 NSTextCheckingCityKey
, NSTextCheckingStateKey
和 NSTextCheckingZIPKey
.我无法在 NSDataDetector
的初始化中使用这些键.
I'd like to pull out elements of addresses, not the entire address. In NSHipster's NSDataDetector
post in the Data Detector Match Types section, I see address components such as NSTextCheckingCityKey
, NSTextCheckingStateKey
, and NSTextCheckingZIPKey
. I'm unable to use those keys in the NSDataDetector
's initialization.
我在GitHub上挖了一下,看看是否可以找到一个婴儿床的例子,但是我唯一能找到的东西是Swift主仓库中的Objective-C代码或声明性东西.
I dug around on GitHub to see if I could find an example to crib from, but the only stuff I'm able to find is Objective-C code or declarative stuff in the master Swift repo.
我有99%的把握可以提取地址的各个组成部分,但我太笨了,无法弄清楚.感谢您的阅读.我欢迎您提出建议.
I'm 99% sure I can pull out the individual components of an address, but I'm too dumb to figure it out. Thank you for reading. I welcome suggestions.
推荐答案
我以前没有使用过此类,但看起来它返回了 NSTextCheckingResult
类型的对象.如果得到类型为 NSTextCheckingTypeAddress
的结果,则可以要求结果为它的 addressComponents
,它将是包含地址不同部分的字典.
I haven't used this class before, but it looks like it returns objects of type NSTextCheckingResult
. If you get a result of type NSTextCheckingTypeAddress
then you can ask the result for it's addressComponents
, which will be a dictionary containing the different parts of the address.
这是我刚刚打过的一些有效的游乐场代码:
Here is some working playground code I just banged out:
import UIKit
var string = "Now is the time for all good programmers to babble incoherently.\n" +
"Now is the time for all good programmers to babble incoherently.\n" +
"Now is the time for all good programmers to babble incoherently.\n" +
"123 Elm Street\n" +
"Daton, OH 45404\n" +
"Now is the time for all good programmers to babble incoherently.\n" +
"2152 E Street NE\n" +
"Washington, DC 20001"
let results = getAddress(from: string)
print("matched \(results.count) addresses")
for result in results {
let city = result[NSTextCheckingCityKey] ?? ""
print("address dict = \(result).")
print(" City = \"\(city)\"")
}
func getAddress(from dataString: String) -> [[String: String]] {
let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.address.rawValue)
let matches = detector.matches(in: dataString, options: [], range: NSRange(location: 0, length: dataString.utf16.count))
var resultsArray = [[String: String]]()
// put matches into array of Strings
for match in matches {
if match.resultType == .address,
let components = match.addressComponents {
resultsArray.append(components)
} else {
print("no components found")
}
}
return resultsArray
}
此代码显示:
address dict = ["Street":"123 Elm Street","ZIP":"45404","City":"Daton","State":"OH"].城市=道顿"
address dict = ["Street": "123 Elm Street", "ZIP": "45404", "City": "Daton", "State": "OH"]. City = "Daton"
address dict = ["Street":"2152 E Street NE","ZIP":"20001","City":华盛顿","State":"DC"].城市=华盛顿"
address dict = ["Street": "2152 E Street NE", "ZIP": "20001", "City": "Washington", "State": "DC"]. City = "Washington"
这篇关于在Swift 3.0中使用NSDataDetector从字符串中提取地址元素的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!