DeviceEmotion/ApiService/lib/compression/brotli/Transform.cs

namespace System.Net.ApiService.Compression.Brotli {
	/// <summary>Transformations on dictionary words.</summary>
	internal sealed class Transform {
		private readonly byte[] prefix;

		private readonly int type;

		private readonly byte[] suffix;

		internal Transform(string prefix, int type, string suffix) {
			this.prefix = ReadUniBytes(prefix);
			this.type = type;
			this.suffix = ReadUniBytes(suffix);
		}

		internal static byte[] ReadUniBytes(string uniBytes) {
			byte[] result = new byte[uniBytes.Length];
			for (int i = 0; i < result.Length; ++i) {
				result[i] = unchecked((byte)uniBytes[i]);
			}
			return result;
		}

		internal static readonly System.Net.ApiService.Compression.Brotli.Transform[] Transforms = new System.Net.ApiService.Compression.Brotli.Transform[] { 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, string.Empty), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " "), 
			new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst1, string.Empty), 
			new System.Net.ApiService.Compression.Brotli.Transform (string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, " "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " the "), 
			new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, string.Empty), 
			new System.Net.ApiService.Compression.Brotli.Transform("s ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " of "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, string.Empty), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " and "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst2, string.Empty), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast1, string.Empty), 
			new System.Net.ApiService.Compression.Brotli.Transform(", ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, ", "), 
			new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, " "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " in "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " to "), new System.Net.ApiService.Compression.Brotli.Transform("e ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " "), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "\""), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "."), 
			new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "\">"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "\n"), new
			System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast3, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "]"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType
			.Identity, " for "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst3, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast2, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " a "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " that "), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst
			, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, ". "), new System.Net.ApiService.Compression.Brotli.Transform(".", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType
			.Identity, ", "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst4, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " with "), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "'"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " from "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity
			, " by "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst5, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst6, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform
			(" the ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast4, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType
			.Identity, ". The "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " on "), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " as "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " is "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast7
			, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast1, "ing "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "\n\t"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty
			, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, ":"), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, ". "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "ed "), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst9, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitFirst7, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType
			.OmitLast6, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "("), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, ", "), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast8, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " at "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType
			.Identity, "ly "), new System.Net.ApiService.Compression.Brotli.Transform(" the ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " of "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast5, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(
			string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.OmitLast9, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, ", "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst
			, "\""), new System.Net.ApiService.Compression.Brotli.Transform(".", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "("), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, " "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType
			.UppercaseFirst, "\">"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "=\""), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "."), new System.Net.ApiService.Compression.Brotli.Transform(".com/",
			System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(" the ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " of the "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst
			, "'"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, ". This "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, ","), new System.Net.ApiService.Compression.Brotli.Transform(".", System.Net.ApiService.Compression.Brotli.WordTransformType
			.Identity, " "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, "("), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, "."), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, " not "), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "=\""), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "er "
			), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, " "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "al "), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType
			.UppercaseAll, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "='"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "\""), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, ". "), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "("), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity,
			"ful "), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, ". "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "ive "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType
			.Identity, "less "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "'"), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "est "), new System.Net.ApiService.Compression.Brotli.Transform
			(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, "."), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "\">"), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "='"
			), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, ","), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, "ize "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType
			.UppercaseAll, "."), new System.Net.ApiService.Compression.Brotli.Transform("\u00c2\u00a0", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, string.Empty), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.Identity, ","), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty
			, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, "=\""), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "=\""), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.Identity
			, "ous "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, ", "), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, "='"), new System.Net.ApiService.Compression.Brotli.Transform(" ",
			System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, ","), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "=\""), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, ", "), new System.Net.ApiService.Compression.Brotli.Transform
			(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, ","), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "("), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.
			UppercaseAll, ". "), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "."), new System.Net.ApiService.Compression.Brotli.Transform(string.Empty, System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "='"), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType
			.UppercaseAll, ". "), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst, "=\""), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll, "='"), new System.Net.ApiService.Compression.Brotli.Transform(" ", System.Net.ApiService.Compression.Brotli.WordTransformType
			.UppercaseFirst, "='") };

		internal static int TransformDictionaryWord(byte[] dst, int dstOffset, byte[] word, int wordOffset, int len, System.Net.ApiService.Compression.Brotli.Transform transform) {
			int offset = dstOffset;
			// Copy prefix.
			byte[] @string = transform.prefix;
			int tmp = @string.Length;
			int i = 0;
			// In most cases tmp < 10 -> no benefits from System.arrayCopy
			while (i < tmp) {
				dst[offset++] = @string[i++];
			}
			// Copy trimmed word.
			int op = transform.type;
			tmp = System.Net.ApiService.Compression.Brotli.WordTransformType.GetOmitFirst(op);
			if (tmp > len) {
				tmp = len;
			}
			wordOffset += tmp;
			len -= tmp;
			len -= System.Net.ApiService.Compression.Brotli.WordTransformType.GetOmitLast(op);
			i = len;
			while (i > 0) {
				dst[offset++] = word[wordOffset++];
				i--;
			}
			if (op == System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseAll || op == System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst) {
				int uppercaseOffset = offset - len;
				if (op == System.Net.ApiService.Compression.Brotli.WordTransformType.UppercaseFirst) {
					len = 1;
				}
				while (len > 0) {
					tmp = dst[uppercaseOffset] & unchecked((int)(0xFF));
					if (tmp < unchecked((int)(0xc0))) {
						if (tmp >= 'a' && tmp <= 'z') {
							dst[uppercaseOffset] ^= unchecked((byte)32);
						}
						uppercaseOffset += 1;
						len -= 1;
					} else if (tmp < unchecked((int)(0xe0))) {
						dst[uppercaseOffset + 1] ^= unchecked((byte)32);
						uppercaseOffset += 2;
						len -= 2;
					} else {
						dst[uppercaseOffset + 2] ^= unchecked((byte)5);
						uppercaseOffset += 3;
						len -= 3;
					}
				}
			}
			// Copy suffix.
			@string = transform.suffix;
			tmp = @string.Length;
			i = 0;
			while (i < tmp) {
				dst[offset++] = @string[i++];
			}
			return offset - dstOffset;
		}
	}
}