예제 #1
0
        private async Task <List <ParsedInput> > ParseInput(string inputText, IRequestContext context, CancellationToken cancellationToken)
        {
            _synchronizationToken.Increment();
            try
            {
                var parsedInputs       = new List <ParsedInput>();
                var processedInputText = inputText;
                var textPreprocessors  = _textPreprocessors.OrderBy(p => p.Priority);
                foreach (var preprocessor in textPreprocessors)
                {
                    cancellationToken.ThrowIfCancellationRequested();
                    processedInputText =
                        await
                        preprocessor.ProcessTextAsync(processedInputText, context, cancellationToken)
                        .ConfigureAwait(false);
                }

                var textCursor = new TextCursor(processedInputText, context);

                foreach (var commandProcessor in _commandProcessors)
                {
                    // Gets all the syntaxes that are of the same culture of the context or are culture invariant
                    var syntaxes =
                        commandProcessor.Syntaxes.Where(
                            s => s.Culture.Equals(context.Culture) || s.Culture.Equals(CultureInfo.InvariantCulture));

                    foreach (var syntax in syntaxes)
                    {
                        cancellationToken.ThrowIfCancellationRequested();

                        textCursor.RightToLeftParsing = syntax.RightToLeftParsing;
                        textCursor.Reset();

                        Expression expression;
                        if (SyntaxParser.TryParse(textCursor, syntax, context, out expression))
                        {
                            var commandParsedQuery = new ParsedInput(expression, commandProcessor);
                            parsedInputs.Add(commandParsedQuery);
                            break;
                        }
                    }
                }
                return(parsedInputs);
            }
            finally
            {
                _synchronizationToken.Decrement();
            }
        }
예제 #2
0
        private async Task<List<ParsedInput>> ParseInput(string inputText, IRequestContext context, CancellationToken cancellationToken)
        {
            _synchronizationToken.Increment();
            try
            {
                var parsedInputs = new List<ParsedInput>();
                var processedInputText = inputText;
                var textPreprocessors = _textPreprocessors.OrderBy(p => p.Priority);
                foreach (var preprocessor in textPreprocessors)
                {
                    cancellationToken.ThrowIfCancellationRequested();
                    processedInputText =
                        await
                            preprocessor.ProcessTextAsync(processedInputText, context, cancellationToken)
                                .ConfigureAwait(false);
                }

                var textCursor = new TextCursor(processedInputText, context);

                foreach (var commandProcessor in _commandProcessors)
                {
                    // Gets all the syntaxes that are of the same culture of the context or are culture invariant
                    var syntaxes =
                        commandProcessor.Syntaxes.Where(
                            s => s.Culture.Equals(context.Culture) || s.Culture.Equals(CultureInfo.InvariantCulture));

                    foreach (var syntax in syntaxes)
                    {
                        cancellationToken.ThrowIfCancellationRequested();

                        textCursor.RightToLeftParsing = syntax.RightToLeftParsing;
                        textCursor.Reset();

                        Expression expression;
                        if (SyntaxParser.TryParse(textCursor, syntax, context, out expression))
                        {
                            var commandParsedQuery = new ParsedInput(expression, commandProcessor);
                            parsedInputs.Add(commandParsedQuery);
                            break;
                        }
                    }
                }
                return parsedInputs;
            }
            finally
            {
                _synchronizationToken.Decrement();
            }
        }