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Swift  2016-01-24 17:42

Swift 版 HTML/XML 解析器 Ji

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Swift 版 HTML/XML 解析器 Ji。

解析 NSURL： 

let jiDoc = Ji(htmlURL: NSURL(string: "http://www.apple.com/support")!)
let titleNode = jiDoc?.xPath("//head/title")?.first
print("title: \(titleNode?.content)") // title: Optional("Official Apple Support")
解析 String ： 

let xmlString = "<?xml version='1.0' encoding='UTF-8'?><note><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note>"
let jiDoc = Ji(xmlString: xmlString)
let bodyNode = jiDoc?.rootNode?.firstChildWithName("body")
print("body: \(bodyNode?.content)") // body: Optional("Don\'t forget me this weekend!")
解析 NSData： 

let googleIndexData = NSData(contentsOfURL: NSURL(string: "http://www.google.com")!)
if let googleIndexData = googleIndexData {
    let jiDoc = Ji(htmlData: googleIndexData)!
    let htmlNode = jiDoc.rootNode!
    print("html tagName: \(htmlNode.tagName)") // html tagName: Optional("html")

    let aNodes = jiDoc.xPath("//body//a")
    if let firstANode = aNodes?.first {
        print("first a node tagName: \(firstANode.name)") // first a node tagName: Optional("a")
        let href = firstANode["href"]
        print("first a node href: \(href)") // first a node href: Optional("http://www.google.ca/imghp?hl=en&tab=wi")
    }
} else {
    print("google.com is inaccessible")
}

let 戟文档 = 戟(htmlURL: NSURL(string: "https://cocoapods.org/pods/Ji")!)
let attribution = 戟文档?.xPath("//ul[@class='attribution']")?.first
print("作者(Author): \(attribution?.content)")

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