void ResetState()
 {
     complexTextMode = JsonComplexTextMode.None;
     expectingFirstElementInNonPrimitiveChild = false;
     charactersToSkipOnNextRead = new byte[2];
     scopeDepth = 0;
     if ((scopes != null) && (scopes.Length > JsonGlobals.maxScopeSize))
     {
         scopes = null;
     }
 }
        void ReadNumericalText()
        {
            byte[] buffer;
            int offset;
            int offsetMax;
            int length;

            if (buffered)
            {
                buffer = BufferReader.GetBuffer(out offset, out offsetMax);
                length = ComputeNumericalTextLength(buffer, offset, offsetMax);
            }
            else
            {
                buffer = BufferReader.GetBuffer(MaxTextChunk, out offset, out offsetMax);
                length = ComputeNumericalTextLength(buffer, offset, offsetMax);
                length = BreakText(buffer, offset, length);
            }
            BufferReader.Advance(length);

            if (offset <= offsetMax - length)
            {
                MoveToAtomicText().Value.SetValue(ValueHandleType.UTF8, offset, length);
                complexTextMode = JsonComplexTextMode.None;
            }
            else
            {
                MoveToComplexText().Value.SetValue(ValueHandleType.UTF8, offset, length);
                complexTextMode = JsonComplexTextMode.NumericalText;
            }
        }
        void ReadQuotedText(bool moveToText)
        {
            byte[] buffer;
            int offset;
            int offsetMax;
            int length;
            bool escaped;
            bool endReached;

            if (buffered)
            {
                buffer = BufferReader.GetBuffer(out offset, out offsetMax);
                length = ComputeQuotedTextLengthUntilEndQuote(buffer, offset, offsetMax, out escaped);
                endReached = offset < offsetMax - length;
            }
            else
            {
                buffer = BufferReader.GetBuffer(MaxTextChunk, out offset, out offsetMax);
                length = ComputeQuotedTextLengthUntilEndQuote(buffer, offset, offsetMax, out escaped);
                endReached = offset < offsetMax - length;
                length = BreakText(buffer, offset, length);
            }

            if (escaped && BufferReader.GetByte() == 0xEF)
            {
                offset = BufferReader.Offset;
                length = ReadNonFFFE();
            }

            BufferReader.Advance(length);

            if (!escaped && endReached)
            {
                if (moveToText)
                {
                    MoveToAtomicText().Value.SetValue(ValueHandleType.UTF8, offset, length);
                }
                SkipExpectedByteInBufferReader(JsonGlobals.QuoteByte);
                complexTextMode = JsonComplexTextMode.None;
            }
            else
            {
                if ((length == 0) && escaped)
                {
                    ReadEscapedCharacter(moveToText);
                }
                else
                {
                    if (moveToText)
                    {
                        MoveToComplexText().Value.SetValue(ValueHandleType.UTF8, offset, length);
                    }
                    complexTextMode = JsonComplexTextMode.QuotedText;
                }
            }
        }
Esempio n. 4
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        /// <summary>
        /// Reset State 
        /// </summary>
        private void ResetState()
        {

            complexTextMode = JsonComplexTextMode.None;

            // Set this bool to false
            // indicate than the first child is a complex type (beetween "{" and "}" )
            expectingFirstElementInNonPrimitiveChild = false;

            charactersToSkipOnNextRead = new byte[2];

            // Reset depth to 0
            scopeDepth = 0;

            // Clear the scopes dictionary
            scopes.Clear();
        }
        void ReadEscapedCharacter(bool moveToText)
        {
            BufferReader.SkipByte();
            char ch = (char)BufferReader.GetByte();
            if (ch == 'u')
            {
                BufferReader.SkipByte();
                int offset;
                byte[] buffer = BufferReader.GetBuffer(5, out offset);
                string bufferAsString = Encoding.UTF8.GetString(buffer, offset, 4);
                BufferReader.Advance(4);
                int charValue = ParseChar(bufferAsString, NumberStyles.HexNumber);
                if (Char.IsHighSurrogate((char)charValue))
                {
                    byte nextByte = BufferReader.GetByte();
                    if (nextByte == (byte)'\\')
                    {
                        BufferReader.SkipByte();
                        SkipExpectedByteInBufferReader((byte)'u');
                        buffer = BufferReader.GetBuffer(5, out offset);
                        bufferAsString = Encoding.UTF8.GetString(buffer, offset, 4);
                        BufferReader.Advance(4);
                        char lowChar = ParseChar(bufferAsString, NumberStyles.HexNumber);
                        if (!Char.IsLowSurrogate(lowChar))
                        {
                            XmlExceptionHelper.ThrowXmlException(this,
                                new XmlException(System.Runtime.Serialization.SR.GetString(System.Runtime.Serialization.SR.XmlInvalidLowSurrogate, bufferAsString)));
                        }
                        charValue = new SurrogateChar(lowChar, (char)charValue).Char;
                    }
                }

                if (buffer[offset + 4] == JsonGlobals.QuoteByte)
                {
                    BufferReader.SkipByte();
                    if (moveToText)
                    {
                        MoveToAtomicText().Value.SetCharValue(charValue);
                    }
                    complexTextMode = JsonComplexTextMode.None;
                }
                else
                {
                    if (moveToText)
                    {
                        MoveToComplexText().Value.SetCharValue(charValue);
                    }
                    complexTextMode = JsonComplexTextMode.QuotedText;
                }
            }
            else
            {
                switch (ch)
                {
                    case 'b':
                        ch = '\b';
                        break;
                    case 'f':
                        ch = '\f';
                        break;
                    case 'n':
                        ch = '\n';
                        break;
                    case 'r':
                        ch = '\r';
                        break;
                    case 't':
                        ch = '\t';
                        break;
                    case '\"':
                    case '\\':
                    case '/':
                        // Do nothing. These are the actual unescaped values.
                        break;
                    default:
                        XmlExceptionHelper.ThrowXmlException(this,
                            new XmlException(SR.GetString(SR.JsonEncounteredUnexpectedCharacter, (char)ch)));
                        break;
                }
                BufferReader.SkipByte();
                if (BufferReader.GetByte() == JsonGlobals.QuoteByte)
                {
                    BufferReader.SkipByte();
                    if (moveToText)
                    {
                        MoveToAtomicText().Value.SetCharValue(ch);
                    }
                    complexTextMode = JsonComplexTextMode.None;
                }
                else
                {
                    if (moveToText)
                    {
                        MoveToComplexText().Value.SetCharValue(ch);
                    }
                    complexTextMode = JsonComplexTextMode.QuotedText;
                }
            }
        }
Esempio n. 6
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        private void ReadNumericalText()
        {
            int offset;
            int offsetMax;
            int num;

            byte[] buffer = this.BufferReader.GetBuffer(MaxTextChunk, out offset, out offsetMax);
            int numericalTextLength = ComputeNumericalTextLength(buffer, offset, offsetMax);
            num = BreakText(buffer, offset, numericalTextLength);

            this.BufferReader.Advance(num);
            if (offset <= offsetMax - num)
            {
                this.MoveToAtomicText().Value.SetValue(ValueHandleType.UTF8, offset, num);
                complexTextMode = JsonComplexTextMode.None;
            }
            else
            {
                this.MoveToComplexText().Value.SetValue(ValueHandleType.UTF8, offset, num);
                complexTextMode = JsonComplexTextMode.NumericalText;
            }
        }
Esempio n. 7
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        /// <summary>
        /// Read Quoted Text
        /// </summary>
        /// <param name="moveToText"></param>
        private void ReadQuotedText(bool moveToText)
        {
            int offset;
            int offsetMax;
            bool escaped;
            int num;

            byte[] buffer = this.BufferReader.GetBuffer(MaxTextChunk, out offset, out offsetMax);

            int lengthUntilEndQuote = ComputeQuotedTextLengthUntilEndQuote(buffer, offset, offsetMax, out escaped);

            num = BreakText(buffer, offset, lengthUntilEndQuote);

            if (escaped && this.BufferReader.GetByte() == 239)
            {
                offset = this.BufferReader.Offset;
                num = ReadNonFFFE();
            }

            this.BufferReader.Advance(num);

            // If there is no escaped char && offset is not at the end
            if (!escaped && offset < offsetMax - num)
            {
                if (moveToText)
                    this.MoveToAtomicText().Value.SetValue(ValueHandleType.UTF8, offset, num);

                SkipExpectedByteInBufferReader(Keys.DoubleQuote);

                complexTextMode = JsonComplexTextMode.None;
            }
            else if (num == 0 && escaped)
            {
                ReadEscapedCharacter(moveToText);
            }
            else
            {
                if (moveToText)
                    this.MoveToComplexText().Value.SetValue(ValueHandleType.UTF8, offset, num);
                complexTextMode = JsonComplexTextMode.QuotedText;
            }
        }
Esempio n. 8
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        /// <summary>
        /// Read Escaped Character and set this.complexTextMode = JsonComplexTextMode.Non or QuotedText
        /// </summary>
        /// <param name="moveToText"></param>
        private void ReadEscapedCharacter(bool moveToText)
        {
            // Skip current byte
            this.BufferReader.SkipByte();

            // Get Byte
            var ch1 = (char)this.BufferReader.GetByte();

            //The Unicode character with encoding xxxx, where xxxx is one to four hexidecimal digits. 
            //Unicode escapes are distinct from the other escape types listed here; they are described below in more detail.
            if (ch1 == Keys.LowerU)
            {
                // Skip the lower u
                this.BufferReader.SkipByte();

                int offset;
                // Get next 5 char

                byte[] buffer = this.BufferReader.GetBuffer(5, out offset);

                string string1 = Encoding.UTF8.GetString(buffer, offset, 4);
                this.BufferReader.Advance(4);

                int ch2 = ParseChar(string1, NumberStyles.HexNumber);

                if (char.IsHighSurrogate((char)ch2) && this.BufferReader.GetByte() == Keys.BackSlash)
                {
                    this.BufferReader.SkipByte();

                    // Skip the lower U
                    this.SkipExpectedByteInBufferReader(Keys.LowerU);

                    buffer = this.BufferReader.GetBuffer(5, out offset);

                    string string2 = Encoding.UTF8.GetString(buffer, offset, 4);

                    this.BufferReader.Advance(4);

                    char ch3 = ParseChar(string2, NumberStyles.HexNumber);

                    if (!char.IsLowSurrogate(ch3))
                        throw new XmlException("XmlInvalidLowSurrogate");

                    // ch2 = new SurrogateChar(ch3, (char)ch2).Char;
                }
                if (buffer[offset + 4] == Keys.DoubleQuote)
                {
                    this.BufferReader.SkipByte();
                    if (moveToText)
                        this.MoveToAtomicText().Value.SetCharValue(ch2);
                    this.complexTextMode = JsonComplexTextMode.None;
                }
                else
                {
                    if (moveToText)
                        this.MoveToComplexText().Value.SetCharValue(ch2);
                    this.complexTextMode = JsonComplexTextMode.QuotedText;
                }

            }
            else
            {
                switch (ch1)
                {
                    case 'n':
                        ch1 = '\n';
                        break;
                    case 'r':
                        ch1 = '\r';
                        break;
                    case 't':
                        ch1 = '\t';
                        break;
                    case 'b':
                        ch1 = '\b';
                        break;
                    case 'f':
                        break;
                    case '"':
                    case '/':
                    case '\\':
                        break;
                    default:
                        throw new XmlException("JsonEncounteredUnexpectedCharacter");
                }

                // skip current byte
                this.BufferReader.SkipByte();

                if (this.BufferReader.GetByte() == Keys.DoubleQuote)
                {
                    this.BufferReader.SkipByte();
                    if (moveToText)
                        this.MoveToAtomicText().Value.SetCharValue(ch1);

                    complexTextMode = JsonComplexTextMode.None;
                }
                else
                {
                    if (moveToText)
                        this.MoveToComplexText().Value.SetCharValue(ch1);

                    complexTextMode = JsonComplexTextMode.QuotedText;
                }
            }
        }
 private void ReadQuotedText(bool moveToText)
 {
     int offset;
     int num2;
     int num3;
     bool flag;
     if (this.buffered)
     {
         num3 = ComputeQuotedTextLengthUntilEndQuote(base.BufferReader.GetBuffer(out offset, out num2), offset, num2, out flag);
     }
     else
     {
         byte[] buffer = base.BufferReader.GetBuffer(0x800, out offset, out num2);
         num3 = ComputeQuotedTextLengthUntilEndQuote(buffer, offset, num2, out flag);
         num3 = BreakText(buffer, offset, num3);
     }
     if (flag && (base.BufferReader.GetByte() == 0xef))
     {
         offset = base.BufferReader.Offset;
         num3 = this.ReadNonFFFE();
     }
     base.BufferReader.Advance(num3);
     if (!flag && (offset < (num2 - num3)))
     {
         if (moveToText)
         {
             base.MoveToAtomicText().Value.SetValue(ValueHandleType.UTF8, offset, num3);
         }
         this.SkipExpectedByteInBufferReader(0x22);
         this.complexTextMode = JsonComplexTextMode.None;
     }
     else if ((num3 == 0) && flag)
     {
         this.ReadEscapedCharacter(moveToText);
     }
     else
     {
         if (moveToText)
         {
             base.MoveToComplexText().Value.SetValue(ValueHandleType.UTF8, offset, num3);
         }
         this.complexTextMode = JsonComplexTextMode.QuotedText;
     }
 }
 private void ReadNumericalText()
 {
     int num;
     int num2;
     int num3;
     if (this.buffered)
     {
         num3 = ComputeNumericalTextLength(base.BufferReader.GetBuffer(out num, out num2), num, num2);
     }
     else
     {
         byte[] buffer = base.BufferReader.GetBuffer(0x800, out num, out num2);
         num3 = ComputeNumericalTextLength(buffer, num, num2);
         num3 = BreakText(buffer, num, num3);
     }
     base.BufferReader.Advance(num3);
     if (num <= (num2 - num3))
     {
         base.MoveToAtomicText().Value.SetValue(ValueHandleType.UTF8, num, num3);
         this.complexTextMode = JsonComplexTextMode.None;
     }
     else
     {
         base.MoveToComplexText().Value.SetValue(ValueHandleType.UTF8, num, num3);
         this.complexTextMode = JsonComplexTextMode.NumericalText;
     }
 }
        private void ReadEscapedCharacter(bool moveToText)
        {
            base.BufferReader.SkipByte();
            char @byte = (char) base.BufferReader.GetByte();
            switch (@byte)
            {
                case '"':
                case '/':
                case '\\':
                    break;

                case 'r':
                    @byte = '\r';
                    break;

                case 't':
                    @byte = '\t';
                    break;

                case 'n':
                    @byte = '\n';
                    break;

                case 'b':
                    @byte = '\b';
                    break;

                case 'f':
                    @byte = '\f';
                    break;

                case 'u':
                {
                    int num;
                    base.BufferReader.SkipByte();
                    byte[] bytes = base.BufferReader.GetBuffer(5, out num);
                    string str = Encoding.UTF8.GetString(bytes, num, 4);
                    base.BufferReader.Advance(4);
                    int ch = ParseChar(str, NumberStyles.HexNumber);
                    if (char.IsHighSurrogate((char) ch) && (base.BufferReader.GetByte() == 0x5c))
                    {
                        base.BufferReader.SkipByte();
                        this.SkipExpectedByteInBufferReader(0x75);
                        bytes = base.BufferReader.GetBuffer(5, out num);
                        str = Encoding.UTF8.GetString(bytes, num, 4);
                        base.BufferReader.Advance(4);
                        char c = ParseChar(str, NumberStyles.HexNumber);
                        if (!char.IsLowSurrogate(c))
                        {
                            XmlExceptionHelper.ThrowXmlException(this, new XmlException(System.Runtime.Serialization.SR.GetString("XmlInvalidLowSurrogate", new object[] { str })));
                        }
                        SurrogateChar ch3 = new SurrogateChar(c, (char) ch);
                        ch = ch3.Char;
                    }
                    if (bytes[num + 4] == 0x22)
                    {
                        base.BufferReader.SkipByte();
                        if (moveToText)
                        {
                            base.MoveToAtomicText().Value.SetCharValue(ch);
                        }
                        this.complexTextMode = JsonComplexTextMode.None;
                        return;
                    }
                    if (moveToText)
                    {
                        base.MoveToComplexText().Value.SetCharValue(ch);
                    }
                    this.complexTextMode = JsonComplexTextMode.QuotedText;
                    return;
                }
                default:
                    XmlExceptionHelper.ThrowXmlException(this, new XmlException(System.Runtime.Serialization.SR.GetString("JsonEncounteredUnexpectedCharacter", new object[] { @byte })));
                    break;
            }
            base.BufferReader.SkipByte();
            if (base.BufferReader.GetByte() == 0x22)
            {
                base.BufferReader.SkipByte();
                if (moveToText)
                {
                    base.MoveToAtomicText().Value.SetCharValue(@byte);
                }
                this.complexTextMode = JsonComplexTextMode.None;
            }
            else
            {
                if (moveToText)
                {
                    base.MoveToComplexText().Value.SetCharValue(@byte);
                }
                this.complexTextMode = JsonComplexTextMode.QuotedText;
            }
        }
 private void ResetState()
 {
     this.complexTextMode = JsonComplexTextMode.None;
     this.expectingFirstElementInNonPrimitiveChild = false;
     this.charactersToSkipOnNextRead = new byte[2];
     this.scopeDepth = 0;
     if ((this.scopes != null) && (this.scopes.Length > 0x19))
     {
         this.scopes = null;
     }
 }