GetEncoding() public static method

Reads a file to determine its encoding.
public static GetEncoding ( string filename ) : Encoding
filename string The filename.
return System.Text.Encoding
Esempio n. 1
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        /// <summary>
        /// Arranges an individual source file.
        /// </summary>
        /// <param name="inputFile">The input file.</param>
        /// <param name="outputFile">The output file.</param>
        private void ArrangeSourceFile(string inputFile, string outputFile)
        {
            ReadOnlyCollection <ICodeElement> elements = null;
            string inputFileText = null;

            Encoding encoding = _encoding;

            try
            {
                FileAttributes fileAttributes = File.GetAttributes(inputFile);
                if (inputFile == outputFile &&
                    ((fileAttributes & FileAttributes.ReadOnly) == FileAttributes.ReadOnly))
                {
                    LogMessage(LogLevel.Warning, "File {0} is read-only", inputFile);
                }
                else
                {
                    if (encoding == null)
                    {
                        encoding = FileUtilities.GetEncoding(inputFile);
                    }

                    inputFileText = File.ReadAllText(inputFile, encoding);
                    elements      = _projectManager.ParseElements(inputFile, inputFileText);
                    LogMessage(LogLevel.Trace, "Parsed {0}", inputFile);
                }
            }
            catch (DirectoryNotFoundException)
            {
                LogMessage(LogLevel.Warning, "File {0} does not exist.", inputFile);
            }
            catch (FileNotFoundException)
            {
                LogMessage(LogLevel.Warning, "File {0} does not exist.", inputFile);
            }
            catch (IOException ioException)
            {
                LogMessage(
                    LogLevel.Warning,
                    "Unable to read file {0}: {1}",
                    inputFile,
                    ioException.ToString());
            }
            catch (UnauthorizedAccessException ioException)
            {
                LogMessage(
                    LogLevel.Warning,
                    "Unable to read file {0}: {1}",
                    inputFile,
                    ioException.Message);
            }
            catch (ParseException parseException)
            {
                LogMessage(
                    LogLevel.Warning,
                    "Unable to parse file {0}: {1}",
                    inputFile,
                    parseException.Message);
            }
            catch (Exception parseException)
            {
                LogMessage(
                    LogLevel.Warning,
                    "Unable to parse file {0}: {1}",
                    inputFile,
                    parseException.Message);
            }

            if (elements != null)
            {
                try
                {
                    elements = ArrangeElements(elements);
                }
                catch (InvalidOperationException invalidEx)
                {
                    LogMessage(
                        LogLevel.Warning,
                        "Unable to arrange file {0}: {1}",
                        inputFile,
                        invalidEx.ToString());

                    elements = null;
                }
            }

            string outputFileText = null;

            if (elements != null)
            {
                ICodeElementWriter codeWriter = _projectManager.GetSourceHandler(inputFile).CodeWriter;
                codeWriter.Configuration = _configuration;

                StringWriter writer = new StringWriter(CultureInfo.InvariantCulture);
                try
                {
                    codeWriter.Write(elements, writer);
                }
                catch (Exception ex)
                {
                    LogMessage(LogLevel.Error, ex.ToString());
                    throw;
                }

                outputFileText = writer.ToString();
            }

            if (outputFileText != null)
            {
                //
                // Store the arranged elements so that we can create a backup before writing
                //
                _arrangeResults.Add(
                    outputFile,
                    new ArrangeResult(encoding, inputFile, inputFileText, outputFile, outputFileText));
            }
        }
Esempio n. 2
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        /// <summary>
        /// Arranges a file as a string
        /// </summary>
        /// <param name="inputFile">The input file.</param>
        /// <param name="inputText">The text of the file.</param>
        /// <param name="outputText">The arranged text of the file.</param>
        /// <returns>True if successful, otherwise false.</returns>
        public bool Arrange(string inputFile, string inputFileText, out string outputFileText)
        {
            outputFileText = null;

            if (!Initialize())
            {
                return(false);
            }

            bool isProject   = _projectManager.IsProject(inputFile);
            bool isSolution  = !isProject && ProjectManager.IsSolution(inputFile);
            bool isDirectory = !isProject && !isSolution && string.IsNullOrEmpty(Path.GetExtension(inputFile)) && Directory.Exists(inputFile);

            if (isProject || isSolution || isDirectory)
            {
                return(false);
            }

            if (File.Exists(String.Concat(inputFile, ".cs")))
            {
                inputFile = String.Concat(inputFile, ".cs");
            }
            else if (File.Exists(String.Concat(inputFile, ".vb")))
            {
                inputFile = String.Concat(inputFile, ".vb");
            }

            bool canParse = _projectManager.CanParse(inputFile);

            if (!canParse)
            {
                LogMessage(
                    LogLevel.Warning,
                    "No assembly is registered to handle file {0}.  Please update the configuration or select a valid file.",
                    inputFile);

                return(false);
            }

            ReadOnlyCollection <ICodeElement> elements = null;

            Encoding encoding = _encoding;

            if (encoding == null)
            {
                encoding = FileUtilities.GetEncoding(inputFile);
            }

            try
            {
                elements = _projectManager.ParseElements(inputFile, inputFileText);
                LogMessage(LogLevel.Trace, "Parsed {0}", inputFile);
            }
            catch (ParseException parseException)
            {
                LogMessage(
                    LogLevel.Warning,
                    "Unable to parse file {0}: {1}",
                    inputFile,
                    parseException.Message);

                return(false);
            }

            if (elements != null)
            {
                try
                {
                    if (_codeArranger == null)
                    {
                        _codeArranger = new CodeArranger(_configuration);
                    }

                    elements = _codeArranger.Arrange(elements);
                }
                catch (InvalidOperationException invalidEx)
                {
                    LogMessage(
                        LogLevel.Warning,
                        "Unable to arrange file {0}: {1}",
                        inputFile,
                        invalidEx.ToString());

                    return(false);
                }
            }

            if (elements != null)
            {
                ICodeElementWriter codeWriter = _projectManager.GetSourceHandler(inputFile).CodeWriter;
                codeWriter.Configuration = _configuration;

                StringWriter writer = new StringWriter(CultureInfo.InvariantCulture);
                try
                {
                    codeWriter.Write(elements, writer);
                }
                catch (Exception ex)
                {
                    LogMessage(LogLevel.Error, ex.ToString());
                    return(false);
                }

                outputFileText = writer.ToString();
            }

            return(true);
        }