private FileContents ReadFile(FullPathName fullName)
{
try {
var fileInfo = new SlimFileInfo(fullName);
const int trailingByteCount = 2;
var block = NativeFile.ReadFileNulTerminated(fileInfo, trailingByteCount);
var contentsByteCount = (int)block.ByteLength - trailingByteCount; // Padding added by ReadFileNulTerminated
var kind = NativeMethods.Text_GetKind(block.Pointer, contentsByteCount);
switch (kind)
{
case NativeMethods.TextKind.Ascii:
return(new AsciiFileContents(new FileContentsMemory(block, 0, contentsByteCount), fileInfo.LastWriteTimeUtc));
case NativeMethods.TextKind.AsciiWithUtf8Bom:
const int utf8BomSize = 3;
return(new AsciiFileContents(new FileContentsMemory(block, utf8BomSize, contentsByteCount - utf8BomSize), fileInfo.LastWriteTimeUtc));
case NativeMethods.TextKind.Utf8WithBom:
var utf16Block = Conversion.UTF8ToUnicode(block);
block.Dispose();
return(new UTF16FileContents(new FileContentsMemory(utf16Block, 0, utf16Block.ByteLength), fileInfo.LastWriteTimeUtc));
case NativeMethods.TextKind.Unknown:
default:
// TODO(rpaquay): Figure out a better way to detect encoding.
//Logger.Log("Text Encoding of file \"{0}\" is not recognized.", fullName);
return(new AsciiFileContents(new FileContentsMemory(block, 0, contentsByteCount), fileInfo.LastWriteTimeUtc));
//throw new NotImplementedException(string.Format("Text Encoding of file \"{0}\" is not recognized.", fullName));
}
}
catch (Exception e) {
Logger.LogException(e, "Error reading content of text file \"{0}\", skipping file.", fullName);
return(StringFileContents.Empty);
}
}
public SafeHeapBlockHandle ReadFileNulTerminated(IFileInfoSnapshot fileInfo, int trailingByteCount)
{
return(NativeFile.ReadFileNulTerminated(((FileInfoSnapshot)fileInfo).SlimFileInfo, trailingByteCount));
}
public SafeHeapBlockHandle ReadFileNulTerminated(FullPath path, long fileSize, int trailingByteCount)
{
return(NativeFile.ReadFileNulTerminated(path, fileSize, trailingByteCount));
}