public List <GrepSearchResult> Search(string file, string searchPattern, SearchType searchType, GrepSearchOption searchOptions, Encoding encoding)
{
List <GrepSearchResult> searchResults = new List <GrepSearchResult>();
SevenZipExtractor extractor = new SevenZipExtractor(file);
string tempFolder = Utils.FixFolderName(Utils.GetTempFolder()) + "dnGREP-Archive\\" + Utils.GetHash(file) + "\\";
FileFilter filter = FileFilter.ChangePath(tempFolder);
// if the search pattern(s) only match archive files, need to include an 'any' file type to search inside the archive.
// otherwise, keep the original pattern set so the user can specify what types of files to search inside the archive.
var patterns = Utils.SplitPath(FileFilter.NamePatternToInclude).ToList();
bool hasNonArchivePattern = patterns.Where(p => !Utils.IsArchiveExtension(Path.GetExtension(p))).Any();
if (!hasNonArchivePattern)
{
patterns.Add(FileFilter.IsRegex ? ".*" : "*.*");
filter = filter.ChangeIncludePattern(string.Join(";", patterns.ToArray()));
}
if (Directory.Exists(tempFolder))
{
Utils.DeleteFolder(tempFolder);
}
Directory.CreateDirectory(tempFolder);
try
{
extractor.ExtractArchive(tempFolder);
foreach (var innerFileName in Utils.GetFileListEx(filter))
{
IGrepEngine engine = GrepEngineFactory.GetSearchEngine(innerFileName, initParams, FileFilter);
var innerFileResults = engine.Search(innerFileName, searchPattern, searchType, searchOptions, encoding);
if (innerFileResults.Count > 0)
{
using (FileStream reader = File.Open(innerFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (StreamReader streamReader = new StreamReader(reader))
{
foreach (var result in innerFileResults)
{
if (Utils.CancelSearch)
{
break;
}
if (!result.HasSearchResults)
{
result.SearchResults = Utils.GetLinesEx(streamReader, result.Matches, initParams.LinesBefore, initParams.LinesAfter);
}
}
}
searchResults.AddRange(innerFileResults);
}
if (Utils.CancelSearch)
{
break;
}
}
foreach (GrepSearchResult result in searchResults)
{
result.FileNameDisplayed = file + "\\" + result.FileNameDisplayed.Substring(tempFolder.Length);
result.FileNameReal = file;
result.ReadOnly = true;
}
}
catch (Exception ex)
{
logger.Log <Exception>(LogLevel.Error, string.Format("Failed to search inside archive '{0}'", file), ex);
}
return(searchResults);
}