using System;

using Lifti;

using System.Threading.Tasks;

using System.Linq;

​

public class Program

{

    public async static Task Main()

    {

        string[] strings = [

            "contains fizz",

            "contains buzz",

            "contains fizz and buzz."

        ];

​

        // Create a full text index with default settings and integer keys.

        // The key will be the index into the string collection

        var index = new FullTextIndexBuilder<int>().Build();

​

        // Index all the strings in the collection

        index.BeginBatchChange();

        for (var i = 0; i < strings.Length; i++) 

        {

            await index.AddAsync(i, strings[i]);

        }

        await index.CommitBatchChangeAsync();

        // Search the index for strings containing both fizz AND buzz

        var results = index.Search("fizz & buzz");

​

        // Prints "1"

        Console.WriteLine($"{results.Count}");

        // Search the index for strings containing fizz OR buzz

        results = index.Search("fizz | buzz");

​

        // Output the indexes of the matching strings

        // Prints "3"

        Console.WriteLine($"{results.Count}");

    }

}