//using System; using System.Collections.Generic; using System.Text; namespace Apewer.Internals { internal class Constant { #region Byte[] /// <summary>空字节数组。</summary> public static readonly byte[] EmptyBytes = new byte[0]; /// <summary>UTF-8 BOM。</summary> public static byte[] Bom { get => new byte[] { 0xEF, 0xBB, 0xBF }; } #endregion #region String /// <summary>空字符串。</summary> public const string EmptyString = ""; /// <summary>换行符,由 ASCII 13 和 ASCII 10 组成。</summary> public const string LineFeed = "\r\n"; /// <summary>空白半角字符。</summary> public const string BlankDbcCaseChars = " \n\r\t\b\f"; /// <summary>空白全角字符。</summary> public const string BlankSbcCaseChars = " "; /// <summary>所有易识别的字符,包含大写字母和数字。</summary> public const string LucidCollection = "3456789acefhknpstwxyz"; /// <summary>所有 GUID 中的字符,包含字母、数字和连字符。</summary> public const string GuidCollection = "0123456789ABCDEFabcdef-"; /// <summary>所有主键字符。</summary> public const string KeyCollection = "0123456789abcdefghijklmnopqrstuvwxyz"; /// <summary>所有十六进制字符。</summary> public const string HexCollection = "0123456789abcdef"; /// <summary>所有数字(ASCII 48 ~ 57)。</summary> public const string NumberCollection = "0123456789"; /// <summary>所有数字(ASCII 48 ~ 57)。</summary> public const string NumericCollection = "0123456789"; /// <summary>所有小写字母(ASCII 97 ~ 122)。</summary> public const string LowerCollection = "abcdefghijklmnopqrstuvwxyz"; /// <summary>所有大写字母(ASCII 65 ~ 90)。</summary> public const string UpperCollection = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; /// <summary>所有字母。</summary> public const string LetterCollection = LowerCollection + UpperCollection; /// <summary>注入字符默认黑名单。</summary> public const string InjectDefaultBlackList = "\"'`\b\f\n\r\t\\/:*?<>|@"; /// <summary>注入字符黑名单。</summary> public const string InjectJsonBlackList = "\\\"'\b\f\n\r\t/@"; #endregion #region Preset Property /// <summary>TCP 传输缓冲区大小。</summary> public const int TcpBufferSize = 8191; /// <summary>默认的缓冲区容量。</summary> public const int DefaultBufferCapacity = 1024; #endregion } }