// This file is part of YamlDotNet - A .NET library for YAML.
//  Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Antoine Aubry and contributors

// Permission is hereby granted, free of charge, to any person obtaining a copy of
//  this software and associated documentation files (the "Software"), to deal in
//  the Software without restriction, including without limitation the rights to
//  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
//  of the Software, and to permit persons to whom the Software is furnished to do
//  so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
//  copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//  SOFTWARE.

// Credits for this class: https://github.com/imgen

using System.IO;

namespace Statiq.Yaml.Dynamic
{
    public static class Extensions
    {
        public static TextReader ToTextReader(this string str)
        {
            return str.IsNullOrEmpty() ? null : new StringReader(str);
        }

        public static bool IsNullOrEmpty(this string str)
        {
            return string.IsNullOrEmpty(str);
        }

        public static string InverseFirstCapital(this string str)
        {
            if (str.IsNullOrEmpty())
            {
                return str;
            }

            char first = str[0];
            first = char.IsUpper(first) ? char.ToLower(str[0]) : char.ToUpper(first);

            return first + str.Substring(1);
        }
    }
}