//

// StreamHelper.cs

// This file is part of Ghostscript.NET library

//

// Author: Josip Habjan (habjan@gmail.com, http://www.linkedin.com/in/habjan)

// Copyright (c) 2013-2021 by Josip Habjan. All rights reserved.

//

// 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.

using System;

using System.Runtime.InteropServices;

using System.Text;

namespace Ghostscript.NET

{

public class StringHelper

{

#region ToUtf8String

public static string ToUtf8String(string value)

{

return Encoding.UTF8.GetString(Encoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(value)));

}

#endregion

#region NativeUtf8FromString

public static IntPtr NativeUtf8FromString(string managedString)

{

int len = Encoding.UTF8.GetByteCount(managedString);

byte[] buffer = new byte[len + 1]; // null-terminator allocated

Encoding.UTF8.GetBytes(managedString, 0, managedString.Length, buffer, 0);

IntPtr nativeUtf8 = Marshal.AllocHGlobal(buffer.Length);

Marshal.Copy(buffer, 0, nativeUtf8, buffer.Length);

return nativeUtf8;

}

#endregion

#region HasNonASCIIChars

public static bool HasNonASCIIChars(string str)

{

return (Encoding.UTF8.GetByteCount(str) != str.Length);

}

#endregion

}

}