﻿// --------------------------------------------------------------------------------------------------------------------
// <copyright file="StringBuilderExtensions.cs" company="CODE Insiders LTD">
// 
// Copyright 2013-2015 CODE Insiders LTD
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//  
// http://www.apache.org/licenses/LICENSE-2.0
// 
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
// </copyright>
// --------------------------------------------------------------------------------------------------------------------
namespace CodeInsiders.SharpQL.Helpers
{
    using System;
    using System.Text;

    internal static class StringBuilderExtensions
    {
        internal static bool EndsWith(this StringBuilder sb, string value) {
            if (sb == null) {
                throw new ArgumentNullException("sb");
            }
            if (value == null) {
                throw new ArgumentNullException("value");
            }

            int k = value.Length - 1;
            int p = sb.Length - 1;
            for (int i = 0; i < value.Length && i < sb.Length; i++) {
                var vc = value[k--];
                var sc = sb[p--];
                if (vc != sc) {
                    return false;
                }
            }

            return true;
        }
    }
}