/// <summary>
/// Analyzes the defines in the given file. Information is saved in the report.
/// </summary>
/// <param name="report">The report to save the results in.</param>
/// <param name="file">The file to analyze.</param>
private void AnalyzeDefines(ScanReport report, ScannedFile file)
{
string[] fileContents;
Match m;
int lineNumber = 0;
fileContents = File.ReadAllLines(file.FullName);
foreach (string line in fileContents)
{
lineNumber++;
#region Search For define directives
m = Regex.Match(line, @"^\s*#\s*define\s+(\w+)\s+(.*)$", RegexOptions.IgnoreCase);
if (m.Success)
{
string identifier = m.Groups[1].ToString();
string value = m.Groups[2].ToString();
value = StripComments(value);
if (Verbose) Console.WriteLine(" Line {0,-7}: Found {3,-18}: {1} as {2}", lineNumber, identifier, value, "define");
report.AddDefineValue(identifier, value, file.ID);
}
#endregion
#region Search for ifdef, ifndef, and undef
foreach (string pattern in new string[] { @"^\s*#\s*ifdef\s+(\w+)", @"^\s*#\s*ifndef\s+(\w+)", @"^\s*#\s*undef\s+(\w+)" })
{
m = Regex.Match(line, pattern, RegexOptions.IgnoreCase);
if (m.Success)
{
string identifier = m.Groups[1].ToString();
if (Verbose) Console.WriteLine(" Line {0,-7}: Found {2,-18}: {1}", lineNumber, identifier, "ifdef/ifnef/undef");
report.AddDefine(identifier, file.ID);
}
}
#endregion
#region Search for if and elif
foreach (string pattern in new string[] { @"^\s*#\s*if\s+(.*)", @"^\s*#\s*elif\s+(.*)" })
{
m = Regex.Match(line, pattern, RegexOptions.IgnoreCase);
if (m.Success)
{
string text = m.Groups[1].ToString();
text = StripComments(text);
foreach (Match definedMatch in Regex.Matches(text, @"defined\((\w+)\)", RegexOptions.IgnoreCase))
{
string identifier = definedMatch.Groups[1].ToString();
if (Verbose) Console.WriteLine(" Line {0,-7}: Found {2,-18}: {1}", lineNumber, identifier, "if/elif");
report.AddDefine(identifier, file.ID);
}
}
}
#endregion
}
}
/// <summary>
/// Recursively scans the project source directory for all files. Each is classified
/// and written to the report structure.
/// </summary>
/// <param name="report">The report to save the results in.</param>
/// <param name="rootDirectory">The root directory of the project.</param>
/// <param name="currentSearchDirectory">The current search directory.</param>
private void ScanDirectory(ScanReport report, string rootDirectory, string currentSearchDirectory)
{
FileSystemInfo[] files = null;
DirectoryInfo dirInfo = null;
if (Directory.Exists(currentSearchDirectory) == false) return;
dirInfo = new DirectoryInfo(currentSearchDirectory);
files = dirInfo.GetFileSystemInfos();
foreach (FileSystemInfo item in files)
{
FileInfo fileInfo = item as FileInfo;
if (fileInfo != null)
{
ScannedFile file = new ScannedFile();
file.Directory = ShortenPath(rootDirectory, fileInfo.DirectoryName);
file.FullName = fileInfo.FullName;
file.Name = fileInfo.Name;
file.Type = ScannedFile.DetermineFileType(fileInfo.Name);
if (Verbose) Console.WriteLine("Adding {0}", file);
report.AddFile(file);
}
}
foreach (FileSystemInfo item in files)
{
DirectoryInfo dir = item as DirectoryInfo;
if (dir != null)
{
if (dir.Name == "." || dir.Name == "..") continue;
ScanDirectory(report, rootDirectory, dir.FullName);
}
}
}
/// <summary>
/// Analyzes the files for include statements. Information is saved in the report.
/// </summary>
/// <param name="report">The report to save the results in.</param>
/// <param name="file">The file to analyze.</param>
private void AnalyzeIncludes(ScanReport report, ScannedFile file)
{
}
/// <summary>
/// Analyzes the given file for clues as to its purpose (looks for main(), etc)
/// </summary>
/// <param name="report"></param>
/// <param name="file"></param>
private void AnalyzeSourceClues(ScanReport report, ScannedFile file)
{
string fileContents;
fileContents = File.ReadAllText(file.FullName);
if(Regex.IsMatch(fileContents, @"int\s*main\s*\(", RegexOptions.Singleline) || Regex.IsMatch(fileContents, @"void\s*main\s*\(", RegexOptions.Singleline))
file.HasMain = true;
}
/// <summary>
/// Adds the given ScanFile instance to the Files dictionary. This method should
/// be used because it assigns the numeric ID to the file if not present.
/// </summary>
/// <param name="file">The file.</param>
public void AddFile(ScannedFile file)
{
if (file.ID == 0)
file.ID = _fileHash.Count + 1;
_fileHash[file.ID] = file;
}