mirror of https://github.com/dahall/Vanara.git
38 lines
1.7 KiB
C#
38 lines
1.7 KiB
C#
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using System;
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namespace Vanara.Extensions
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{
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/// <summary>Extension to dump a byte array.</summary>
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public static class HexDempHelpers
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{
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/// <summary>Creates a multi-line dump of a byte array using hexadecimal values.</summary>
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/// <param name="bytes">The byte array to dump. This value cannot be <see langword="null"/>.</param>
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/// <param name="bytesPerRow">The number of bytes to display on each line.</param>
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/// <param name="gapEvery">The number of bytes to display before inserting an extra space to create a visual gap.</param>
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/// <param name="rowIdLen">
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/// The number of hexadecimal digits to display on the left side of each line to indicate position. If this value is 0, then no
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/// position indicator will be shown. If this value is -1, then the size will be computed in increments of 4 based on the size of
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/// <paramref name="bytes"/>.
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/// </param>
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/// <returns>A multi-line string that contains a hexadecimal dump of <paramref name="bytes"/>.</returns>
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/// <exception cref="ArgumentNullException">bytes</exception>
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public static string ToHexDumpString(this byte[] bytes, int bytesPerRow = 16, int gapEvery = 4, int rowIdLen = -1)
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{
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if (bytes == null) throw new ArgumentNullException(nameof(bytes));
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var sb = new System.Text.StringBuilder();
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var hdrlen = rowIdLen == -1 ? (((bytes.Length.ToString("X").Length - 1) / 4) + 1) * 4 : rowIdLen;
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var hdrfmt = hdrlen == 0 ? "" : "{0:X" + hdrlen.ToString() + "}: ";
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for (var l = 0; l < bytes.Length; l += bytesPerRow)
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{
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sb.AppendFormat(hdrfmt, l);
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for (var i = l; i < bytes.Length && i < l + bytesPerRow; i++)
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{
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sb.Append($"{bytes[i]:X2} ");
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if ((i + 1) % gapEvery == 0) sb.Append(" ");
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}
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sb.AppendLine();
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}
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return sb.ToString();
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}
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}
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}
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