ByteEncoder.cs

namespace Waher.Content.QR.Serialization
{
    public class ByteEncoder : ITextEncoder
    {
        private readonly System.Text.Encoding iso_8859_1 = System.Text.Encoding.GetEncoding("iso-8859-1");
        private readonly BitWriter output;
 
        public ByteEncoder(BitWriter Output)
        {
            this.output = Output;
        }
 
        public static bool CanEncode(string _)
        {
            return true;
        }
 
        public byte[] GetBytes(string Text)
        {
            byte[] Bin = this.iso_8859_1.GetBytes(Text);
            if (this.iso_8859_1.GetString(Bin) != Text)
                Bin = System.Text.Encoding.UTF8.GetBytes(Text);
 
            return Bin;
        }
 
        public void Encode(byte[] Bin)
        {
            foreach (byte b in Bin)
                this.output.WriteBits(b, 8);
        }
 
        public void Encode(string Text)
        {
            byte[] Bin = this.iso_8859_1.GetBytes(Text);
            if (this.iso_8859_1.GetString(Bin) != Text)
                Bin = System.Text.Encoding.UTF8.GetBytes(Text);
 
            this.Encode(Bin);
        }
    }
}