How does HTML parsing work in Swift?

A

A_Codzy2016-04-15 00:07:31

Parsing

A_Codzy, 2016-04-15 00:07:31

I started learning Swift using the example of a simple application in which I want to write data from a specific site without an API to a TableView. Googling led me to the Kanna library for parsing HTML content.
Work example:

import Kanna

let html = "<html>...</html>"

if let doc = Kanna.HTML(html: html, encoding: NSUTF8StringEncoding) {
    print(doc.title)

    // Search for nodes by CSS
    for link in doc.css("a, link") {
        print(link.text)
        print(link["href"])
    }

    // Search for nodes by XPath
    for link in doc.xpath("//a | //link") {
        print(link.text)
        print(link["href"])
    }
}

I do not understand how it helps to pull out the necessary pieces of the page to my program. And how does this parsing process work through xpath or css

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1 answer(s)

A

A_Codzy, 2016-04-17
@A_Codzy

I understand. Just had to read about xpath