예제 #1
0
        private static List <Trivia> ConsumeTrivia(TrackableTextReader stream)
        {
            List <Trivia> triviaList = new List <Trivia>();
            bool          isTrivia   = false;

            char next;

            do
            {
                next = stream.Peek();

                switch (next)
                {
                case ' ':
                case '\t':
                    isTrivia = true;
                    triviaList.Add(CollectWhitespace(stream));
                    break;

                case '\n':
                    isTrivia = true;
                    Trivia newLineTrivia = new Trivia(SyntaxKind.Newline, stream.ReadChar().ToString());
                    triviaList.Add(newLineTrivia);
                    break;

                case '\r':
                    isTrivia = true;
                    stream.ReadChar();
                    next = stream.Peek();

                    Trivia returnTrivia;

                    if (next == '\n')
                    {
                        stream.ReadChar();
                        returnTrivia = new Trivia(SyntaxKind.Newline, "\r\n");
                    }
                    else
                    {
                        returnTrivia = new Trivia(SyntaxKind.Newline, "\r");
                    }

                    triviaList.Add(returnTrivia);
                    break;

                case '-':

                    stream.ReadChar();

                    if (stream.Peek() == '-')
                    {
                        isTrivia = true;
                        stream.ReadChar();
                        string commentSoFar = "";

                        int?level = Lexer.GetLongCommentOpenBracket(stream, ref commentSoFar);

                        if (level != null)
                        {
                            triviaList.Add(ReadLongComment(stream, "--" + commentSoFar, level));
                        }
                        else
                        {
                            triviaList.Add(ReadLineComment(stream, new char[] { '-', '-' }));
                        }
                    }
                    else
                    {
                        isTrivia = false;
                        stream.Pushback();
                    }
                    break;

                default:
                    isTrivia = false;
                    break;
                }
            } while (isTrivia);

            return(triviaList);
        }
예제 #2
0
파일: Lexer.cs 프로젝트: Strongc/VSLua
        private static List<Trivia> ConsumeTrivia(TrackableTextReader stream)
        {
            List<Trivia> triviaList = new List<Trivia>();
            bool isTrivia = false;

            char next;

            do
            {
                next = stream.Peek();

                switch (next)
                {
                    case ' ':
                    case '\t':
                        isTrivia = true;
                        triviaList.Add(CollectWhitespace(stream));
                        break;
                    case '\n':
                        isTrivia = true;
                        Trivia newLineTrivia = new Trivia(SyntaxKind.Newline, stream.ReadChar().ToString());
                        triviaList.Add(newLineTrivia);
                        break;

                    case '\r':
                        isTrivia = true;
                        stream.ReadChar();
                        next = stream.Peek();

                        Trivia returnTrivia;

                        if (next == '\n')
                        {
                            stream.ReadChar();
                            returnTrivia = new Trivia(SyntaxKind.Newline, "\r\n");
                        }
                        else
                        {
                            returnTrivia = new Trivia(SyntaxKind.Newline, "\r");
                        }

                        triviaList.Add(returnTrivia);
                        break;

                    case '-':

                        stream.ReadChar();

                        if (stream.Peek() == '-')
                        {
                            isTrivia = true;
                            stream.ReadChar();
                            string commentSoFar = "";

                            int? level = Lexer.GetLongCommentOpenBracket(stream, ref commentSoFar);

                            if (level != null)
                            {
                                triviaList.Add(ReadLongComment(stream, "--" + commentSoFar, level));
                            }
                            else
                            {
                                triviaList.Add(ReadLineComment(stream, new char[] { '-', '-' }));
                            }
                        }
                        else
                        {
                            isTrivia = false;
                            stream.Pushback();
                        }
                        break;

                    default:
                        isTrivia = false;
                        break;
                }

            } while (isTrivia);

            return triviaList;
        }