Chizl.FileCompare

About:

 public class ComparisonResults
 {
 /// <summary>
 /// Create an empty Model. IsEmpty will be set to True.
 /// </summary>
 public static ComparisonResults Empty { get; } = new ComparisonResults();
 /// <summary>
 /// If ComparisonResults wasn't intialized, True will be returned.
 /// </summary>
 public bool IsEmpty { get; } = false;
 /// <summary>
 /// If files compared were binary or not.
 /// </summary>
 public bool IsBinary { get; } = false;
 /// <summary>
 /// If an Exception occurs when files are to be loaded, this will be set to true.<br/>
 /// "Exception" property for this class will be set to exception reason.
 /// </summary>
 public bool HasException { get { return this.Exception != null; } }
 /// <summary>
 /// Only used when one of the files is missing when CompareFiles() is called.<br/>
 /// <code>
 /// if (!sourceFileInfo.Exists)
 /// return new ComparisonResults(new ArgumentException($"{nameof(sourceFile)}: '{sourceFile}' is not found and/or accessible."));
 /// if (!targetFileInfo.Exists)
 /// return new ComparisonResults(new ArgumentException($"{nameof(targetFile)}: '{targetFile}' is not found and/or accessible."));
 /// </code>
 /// </summary>
 public Exception Exception { get; } = null;
 /// <summary>
 /// Holds each line with each byte showing any differences that may exist.
 /// </summary>
 public CompareDiff[] LineComparison { get; } = new CompareDiff[0];
 /// <summary>
 /// Shows how many of each different change types were found.<br/>
 /// Add, Modified, Delete, or No Change
 /// </summary>
 public DiffCounts Diffs { get; } = new DiffCounts(0, 0, 0, 0);
 }
 public class DiffCounts
 {
 public int Added { get; } = 0;
 public int Deleted { get; } = 0;
 public int Modified { get; } = 0;
 public int Identical { get; } = 0;
 }
 public class CompareDiff
 {
 /// <summary>
 /// Create an empty Model. IsEmpty will be set to True.
 /// </summary>
 public static CompareDiff Empty { get; } = new CompareDiff();
 /// <summary>
 /// LineBreakDown is used for Modified lines and will be empty for New, Deleted, or unmodified lines.<br/>
 /// This is the help translate modified lines in a more structured manner.
 /// </summary>
 public ByteLevel[] ByteByByteDiff { get { return GetByteLevel(); } }
 /// <summary>
 /// If CompareDiff wasn't intialized, True will be returned.
 /// </summary>
 public bool IsEmpty { get { return this.DiffType.Equals(DiffType.None); } }
 /// <summary>
 /// Type of modification found. Add, Delete, Modified, or None
 /// </summary>
 public DiffType DiffType { get; } = DiffType.None;
 /// <summary>
 /// Line number created for UI matching and may not match line numbers in file.
 /// </summary>
 public int LineNumber { get; } = -1;
 /// <summary>
 /// Single line in string format.
 /// </summary>
 public string LineDiffStr { get { return _lineDiffStr; } }
 /// <summary>
 /// Encoding used for string to byte[] and back to string conversion.<br/>
 /// Default: UTF8
 /// </summary>
 public Encoding EncodeType { get; } = _defaultEncoding;
 }
 public class ByteLevel
 {
 /// <summary>
 /// Byte state: None, Added, Modified, Deleted
 /// </summary>
 public DiffType DiffType { get; } = DiffType.None;
 /// <summary>
 /// Char representation of the byte.
 /// </summary>
 public char Char { get; } = '0円';
 /// <summary>
 /// Single character string representation of the byte.
 /// </summary>
 public string Str { get; } = string.Empty;
 /// <summary>
 /// Byte found in file.
 /// </summary>
 public byte Byte { get; } = 0;
 /// <summary>
 /// Hex version of the Byte
 /// </summary>
 public string Hex { get; } = string.Empty;
 }