Rosetta Code/Count examples: Difference between revisions

=={{header|C sharp|C#}}==

Object-oriented solution.

<lang csharp>using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

using System.Net;

class Task {

private string _task;

private int _examples;

public Task(string task, int examples) {

_task = task;

_examples = examples;

}

public string Name {

get { return _task; }

}

public int Examples {

get { return _examples; }

}

public override string ToString() {

return String.Format("{0}: {1} examples.", this._task, this._examples);

}

}

class Program {

static List<string> GetTitlesFromCategory(string category) {

string content = new WebClient().DownloadString(

String.Format("http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:{0}&cmlimit=500&format=json", category)

);

return new Regex("\"title\":\"(.+?)\"").Matches(content).Cast<Match>().Select(x => x.Groups[1].Value).ToList();

}

static string GetSourceCodeFromPage(string page) {

return new WebClient().DownloadString(

String.Format("http://www.rosettacode.org/w/index.php?title={0}&action=raw", page)

);

}

static void Main(string[] args) {

List<Task> tasks = new List<Task>();

List<string> tasknames = GetTitlesFromCategory("Programming_Tasks");

foreach (string task in tasknames) {

string content = GetSourceCodeFromPage(task);

int count = new Regex("=={{header", RegexOptions.IgnoreCase).Matches(content).Count;

Task t = new Task(task, count);

Console.WriteLine(t);

tasks.Add(t);

}

Console.WriteLine("\nTotal: {0} examples.", tasks.Select(x => x.Examples).Sum());

}

}</lang>