private Encoding DetectEncoding(byte[] sampleBytes)
{
if (AlwaysUseEncoding != null)
{
return(AlwaysUseEncoding);
}
return(EncodingDetector.Detect(sampleBytes, defaultEncoding: DefaultEncodingIfNotDetected));
}
private FindResultItem FindInFile(string filePath)
{
var resultItem = new FindResultItem();
resultItem.IsSuccess = true;
resultItem.IncludeFilesWithoutMatches = IncludeFilesWithoutMatches;
resultItem.FileName = Path.GetFileName(filePath);
resultItem.FilePath = filePath;
resultItem.FileRelativePath = "." + filePath.Substring(Dir.Length);
byte[] sampleBytes;
StopWatch.Start("ReadSampleFileContent");
//Check if can read first
try
{
sampleBytes = Utils.ReadFileContentSample(filePath);
}
catch (Exception exception)
{
StopWatch.Stop("ReadSampleFileContent");
resultItem.IsSuccess = false;
resultItem.FailedToOpen = true;
resultItem.ErrorMessage = exception.Message;
return(resultItem);
}
StopWatch.Stop("ReadSampleFileContent");
if (!SkipBinaryFileDetection)
{
StopWatch.Start("IsBinaryFile");
if (resultItem.IsSuccess)
{
// check for /0/0/0/0
if (Utils.IsBinaryFile(sampleBytes))
{
StopWatch.Stop("IsBinaryFile");
resultItem.IsSuccess = false;
resultItem.IsBinaryFile = true;
return(resultItem);
}
}
StopWatch.Stop("IsBinaryFile");
}
Encoding encoding = EncodingDetector.Detect(sampleBytes, defaultEncoding: Encoding.UTF8);
resultItem.FileEncoding = encoding;
StopWatch.Start("ReadFullFileContent");
string fileContent;
using (var sr = new StreamReader(filePath, encoding))
{
fileContent = sr.ReadToEnd();
}
StopWatch.Stop("ReadFullFileContent");
StopWatch.Start("FindMatches");
RegexOptions regexOptions = Utils.GetRegExOptions(IsCaseSensitive);
resultItem.Matches = Utils.FindMatches(fileContent, FindText, FindTextHasRegEx, regexOptions);
StopWatch.Stop("FindMatches");
resultItem.NumMatches = resultItem.Matches.Count;
return(resultItem);
}