Exemple #1
0
 private void AddToTable(string HexString, TableString tableString)
 {
     for (int k = 0; k < HexString.Length; k += 2)
     {
         tableString.bytes.Add(Convert.ToByte(HexString.Substring(k, 2), 16));
     }
 }
		private void AddToTable (string HexString, TableString tableString)
		{
			for (int k = 0; k < HexString.Length; k +=2) {
				tableString.bytes.Add(Convert.ToByte(HexString.Substring(k, 2), 16));
			}
		}
Exemple #3
0
        /// <summary>
        /// Encodes a string.
        /// </summary>
        /// <param name="scriptBuf">The string to encode.</param>
        /// <param name="BadCharOffset">The Bad char offset.</param>
        /// <returns>The size of the encoded stream.</returns>
        public int EncodeStream(string scriptBuf, ref int BadCharOffset)
        {
            TableString tablestring = new TableString();
            string      hexstr      = string.Empty;
            string      subtextstr  = string.Empty;
            int         i           = 0;
            int         EncodedSize = 0;
            int         BufOffset   = 0;

            BadCharOffset = 0;

            if (string.IsNullOrEmpty(scriptBuf))
            {
                return(0);
            }

            if (StringTable.Count > 0)
            {
                TableString restoreString = StringTable[StringTable.Count - 1];
                if (string.IsNullOrEmpty(restoreString.EndToken))
                {
                    StringTable.RemoveAt(StringTable.Count - 1);
                    tablestring.bytes = restoreString.bytes;
                }
            }

            while (BufOffset < scriptBuf.Length)
            {
                int longestText = Table.LongestText[scriptBuf[BufOffset]];
                for (i = longestText; i > 0; --i)
                {
                    if (BufOffset + i >= scriptBuf.Length)
                    {
                        subtextstr = scriptBuf.Substring(BufOffset);
                    }
                    else
                    {
                        subtextstr = scriptBuf.Substring(BufOffset, i);
                    }
                    if (Table.LookupValue.ContainsKey(subtextstr))
                    {
                        hexstr       = Table.LookupValue[subtextstr];
                        EncodedSize += hexstr.Length;

                        if (Table.EndTokens.Contains(subtextstr))
                        {
                            if (AddEndToken)
                            {
                                AddToTable(hexstr, tablestring);
                            }
                            tablestring.EndToken = subtextstr;
                            StringTable.Add(tablestring);
                            tablestring = new TableString();
                        }
                        else
                        {
                            AddToTable(hexstr, tablestring);
                        }

                        BufOffset += i;
                        break;
                    }
                }

                if (i == 0)
                {
                    BadCharOffset = BufOffset;
                    return(-1);
                }
            }

            if (tablestring.bytes.Count > 0)
            {
                StringTable.Add(tablestring);
            }

            return(EncodedSize);
        }
        /// <summary>
        /// Encodes a string.
        /// </summary>
        /// <param name="scriptBuf">The string to encode.</param>
        /// <param name="BadCharOffset">The Bad char offset.</param>
        /// <returns>The size of the encoded stream.</returns>
		public int EncodeStream (string scriptBuf, ref int BadCharOffset)
		{
			TableString tablestring = new TableString();
            string hexstr = string.Empty;
            string subtextstr = string.Empty;
			int i = 0;
			int EncodedSize = 0;
			int BufOffset  = 0;

			BadCharOffset = 0;

            if (string.IsNullOrEmpty(scriptBuf))
            {
                return 0;
            }

			if (StringTable.Count > 0) {
				TableString restoreString = StringTable[StringTable.Count - 1];
                if (string.IsNullOrEmpty(restoreString.EndToken)) {
                    StringTable.RemoveAt(StringTable.Count - 1);
					tablestring.bytes = restoreString.bytes;
				}
			}

			while (BufOffset < scriptBuf.Length) {
                int longestText = Table.LongestText[scriptBuf[BufOffset]];
                for (i = longestText; i > 0; --i)
                {
                    if (BufOffset + i >= scriptBuf.Length)
                    {
                        subtextstr = scriptBuf.Substring(BufOffset);
                    }
                    else
                    {
                        subtextstr = scriptBuf.Substring(BufOffset, i);
                    }
                    if (Table.LookupValue.ContainsKey(subtextstr))
                    {
                        hexstr = Table.LookupValue[subtextstr];
                        EncodedSize += hexstr.Length;

                        if (Table.EndTokens.Contains(subtextstr))
                        {
                            if (AddEndToken)
                            {
                                AddToTable(hexstr, tablestring);
                            }
                            tablestring.EndToken = subtextstr;
                            StringTable.Add(tablestring);
                            tablestring = new TableString();
                        }
                        else
                        {
                            AddToTable(hexstr, tablestring);
                        }

                        BufOffset += i;
                        break;
                    }
                }

				if (i == 0) {
					BadCharOffset = BufOffset;
					return -1;
				}
			}

            if (tablestring.bytes.Count > 0)
            {
                StringTable.Add(tablestring);
            }

			return EncodedSize;
		}