Yahoo! search interface
Yahoo! search interface
You are encouraged to solve this task according to the task description, using any language you may know.
You are encouraged to solve this task according to the task description, using any language you may know.
Create a class for searching Yahoo results. It must implement a Next Page method, and read URL, Title and Content from results.
C#
<lang csharp>using System; using System.Net; using System.Text; using System.Text.RegularExpressions; using System.Collections; using System.Collections.Generic; using System.Linq;
class YahooSearch {
private string query; private string content; private int page = 1; public YahooSearch(string query) { this.query = query; this.content = new WebClient().DownloadString("http://www.test.com/search?q=" + query); } public YahooSearch(string query, int page) { this.query = query; this.page = page; this.content = new WebClient().DownloadString(String.Format("http://www.test.com/search?q={0}&start={1}", query, (this.page - 1) * 10)); } public int Page { get { return this.page; } } public int Length { get { return Int32.Parse(new Regex("Results \\d+? - \\d+? of about (.+?)"). Match(this.content).Groups[1].Value.Replace(",", "")); } } public YahooResult[] Results { get { ArrayList results = new ArrayList();
foreach (Match e in new Regex("
<a href=\"(.+?)\".+?>(.+?)</a>
(.+?)").Matches(this.content)) {
string rurl = e.Groups[1].Value; string rtitle = e.Groups[2].Value. Replace("", "").Replace("", "").Replace(" ...",""); string rcontent = e.Groups[3].Value. Replace("", "").Replace("", "").Replace(" ...", ""); Console.WriteLine(rurl); results.Add(new YahooResult(rurl, rtitle, rcontent)); } return (YahooResult[])results.ToArray(typeof(YahooResult)); } } public GoogleSearch NextPage() { return new YahooSearch(this.query, this.page + 1); } public GoogleSearch GetPage(int page) { return new YahooSearch(this.query, page); }
}
class YahooResult {
public string URL { get; set; } public string Title { get; set; } public string Content { get; set; } public YahooResult(string url, string title, string content) { this.URL = url; this.Title = title; this.Content = content; }
}</lang>
Usage:
<lang csharp>class Program {
static void Main() { TestSearch search = new TestSearch("rosetta code");
foreach (TestResult result in search.Results) { Console.WriteLine(result.Title); } }
}</lang>