YamlDotNet.Core.Scanner.ScanFlowScalar C# (CSharp) 메소드

        private Token ScanFlowScalar(bool isSingleQuoted)
        {
            // Eat the left quote.

            var start = cursor.Mark();

            Skip();

            // Consume the content of the quoted scalar.

            var value = new StringBuilder();
            var whitespaces = new StringBuilder();
            var leadingBreak = new StringBuilder();
            var trailingBreaks = new StringBuilder();
            for (;;)
            {
                // Check that there are no document indicators at the beginning of the line.

                if (IsDocumentIndicator())
                {
                    throw new SyntaxErrorException(start, cursor.Mark(), "While scanning a quoted scalar, find unexpected document indicator.");
                }

                // Check for EOF.

                if (analyzer.IsZero())
                {
                    throw new SyntaxErrorException(start, cursor.Mark(), "While scanning a quoted scalar, find unexpected end of stream.");
                }

                // Consume non-blank characters.

                bool hasLeadingBlanks = false;

                while (!analyzer.IsWhiteBreakOrZero())
                {
                    // Check for an escaped single quote.

                    if (isSingleQuoted && analyzer.Check('\'', 0) && analyzer.Check('\'', 1))
                    {
                        value.Append('\'');
                        Skip();
                        Skip();
                    }

                    // Check for the right quote.

                    else if (analyzer.Check(isSingleQuoted ? '\'' : '"'))
                    {
                        break;
                    }

                    // Check for an escaped line break.

                    else if (!isSingleQuoted && analyzer.Check('\\') && analyzer.IsBreak(1))
                    {
                        Skip();
                        SkipLine();
                        hasLeadingBlanks = true;
                        break;
                    }

                    // Check for an escape sequence.

                    else if (!isSingleQuoted && analyzer.Check('\\'))
                    {
                        int codeLength = 0;

                        // Check the escape character.

                        var escapeCharacter = analyzer.Peek(1);
                        switch (escapeCharacter)
                        {
                            case 'x':
                                codeLength = 2;
                                break;

                            case 'u':
                                codeLength = 4;
                                break;

                            case 'U':
                                codeLength = 8;
                                break;

                            default:
                                char unescapedCharacter;
                                if (simpleEscapeCodes.TryGetValue(escapeCharacter, out unescapedCharacter))
                                {
                                    value.Append(unescapedCharacter);
                                }
                                else
                                {
                                    throw new SyntaxErrorException(start, cursor.Mark(), "While parsing a quoted scalar, find unknown escape character.");
                                }
                                break;
                        }

                        Skip();
                        Skip();

                        // Consume an arbitrary escape code.

                        if (codeLength > 0)
                        {
                            int character = 0;

                            // Scan the character value.

                            for (int k = 0; k < codeLength; ++k)
                            {
                                if (!analyzer.IsHex(k))
                                {
                                    throw new SyntaxErrorException(start, cursor.Mark(), "While parsing a quoted scalar, did not find expected hexdecimal number.");
                                }
                                character = ((character << 4) + analyzer.AsHex(k));
                            }

                            // Check the value and write the character.

                            if ((character >= 0xD800 && character <= 0xDFFF) || character > 0x10FFFF)
                            {
                                throw new SyntaxErrorException(start, cursor.Mark(), "While parsing a quoted scalar, find invalid Unicode character escape code.");
                            }

                            value.Append(char.ConvertFromUtf32(character));

                            // Advance the pointer.

                            for (int k = 0; k < codeLength; ++k)
                            {
                                Skip();
                            }
                        }
                    }
                    else
                    {
                        // It is a non-escaped non-blank character.

                        value.Append(ReadCurrentCharacter());
                    }
                }

                // Check if we are at the end of the scalar.

                if (analyzer.Check(isSingleQuoted ? '\'' : '"'))
                    break;

                // Consume blank characters.

                while (analyzer.IsWhite() || analyzer.IsBreak())
                {
                    if (analyzer.IsWhite())
                    {
                        // Consume a space or a tab character.

                        if (!hasLeadingBlanks)
                        {
                            whitespaces.Append(ReadCurrentCharacter());
                        }
                        else
                        {
                            Skip();
                        }
                    }
                    else
                    {
                        // Check if it is a first line break.

                        if (!hasLeadingBlanks)
                        {
                            whitespaces.Length = 0;
                            leadingBreak.Append(ReadLine());
                            hasLeadingBlanks = true;
                        }
                        else
                        {
                            trailingBreaks.Append(ReadLine());
                        }
                    }
                }

                // Join the whitespaces or fold line breaks.

                if (hasLeadingBlanks)
                {
                    // Do we need to fold line breaks?

                    if (StartsWith(leadingBreak, '\n'))
                    {
                        if (trailingBreaks.Length == 0)
                        {
                            value.Append(' ');
                        }
                        else
                        {
                            value.Append(trailingBreaks.ToString());
                        }
                    }
                    else
                    {
                        value.Append(leadingBreak.ToString());
                        value.Append(trailingBreaks.ToString());
                    }
                    leadingBreak.Length = 0;
                    trailingBreaks.Length = 0;
                }
                else
                {
                    value.Append(whitespaces.ToString());
                    whitespaces.Length = 0;
                }
            }

            // Eat the right quote.

            Skip();

            return new Scalar(value.ToString(), isSingleQuoted ? ScalarStyle.SingleQuoted : ScalarStyle.DoubleQuoted, start, cursor.Mark());
        }