Question

我有什么方法可以使用AngleSharp来计算所有正文标记，然后为所有标记分配一个唯一的属性ID，例如“data-id = 1”，“data-id = 2”等标签

我希望测试这个用于静态网站翻译目的，然后我将使用查询选择器[data-id]并从每个标签获取TextContent并使用翻译API翻译文本并将翻译后的文本设置为标记ID从最初提取的位置。

C＃

var html = File.ReadAllText(@"C:\example.html");
    var parser = new HtmlParser();
    var document = parser.Parse(html);

    var elements = document.All.Where(o => o.NodeType == AngleSharp.Dom.NodeType.Text && o.TextContent.Trim() != ""); // If text, assign id.
    if(elements != null)
    {
        int number = 0;
        foreach(var element in elements)
        {
            element.SetAttribute("data-id", number.ToString());
            number++;

            element.OuterHtml.Dump();
        }
    }

HTML

<!DOCTYPE html>
<html>
<head>
</head>
<body>
<h1>My page heading</h1>
<h2>This is example static page to get all the HTML tags and their <strong>childrens content </strong> and then <span>translate</span>
that into </br> another language.
</h2>
<p>Something in footer</p>
</body>
</html>

Answer 1

似乎如下所示。基本上，它从Body元素收集所有降序元素，循环遍历它们并添加属性。也许您无法遍历所有后代。

我将正文的更新后的内部html写到一个文本文件中，以便您看到其中的'data-id'属性。

class Program
{
    static void Main(string[] args)
    {

        var response = getHtml("http://www.bbc.com");
        var html = response.Result;

        HtmlParser htmlParser = new HtmlParser();
        var parsedDoc = htmlParser.Parse(html);
        var body = parsedDoc.Body;
        var elements = getAllElements(parsedDoc.Body);

        for(var i = 0; i < elements.Count; i++)
        {
            var child = elements[i];
            child.SetAttribute("data-id", $"data-id{i + 1}");
        }

        File.WriteAllText("E:/soQuestion.txt", parsedDoc.Body.InnerHtml);
    }

    static async Task<string> getHtml(string url)
    {
        using (var httpClient = new HttpClient())
        {
            var response = await httpClient.GetAsync(url);

            //if http request did not succeeed, return empty html
            if (!response.IsSuccessStatusCode) return string.Empty;

            var content = await response.Content.ReadAsStringAsync();
            return content;
        }

    }

    static List<IElement> getAllElements(IElement element)
    {
        List<IElement> elements = new List<IElement>();

        //add element itself
        elements.Add(element);

        foreach (var child in element.Children)
        {
            //add each child elements
            elements.AddRange(getAllElements(child));
        }

        return elements;
    }
}

AngleSharp获取所有HTML标记并分配唯一的id属性

1 个答案: