public static int GetNumberOfLinesInDirectory(string dirName, string fileNameTemplate, CommentsTemplate comments)
{
string[] dirs = Directory.GetDirectories(dirName);
int result = dirs.Sum(s => GetNumberOfLinesInDirectory(s, fileNameTemplate, comments));
string[] files = Directory.GetFiles(dirName, fileNameTemplate);
result += files.Sum(s => GetNumberOfLinesInFile(s, comments));
return(result);
}
private static int GetNumberOfLinesInFile(string fileName, CommentsTemplate comments)
{
int result = 0;
char[] ignoreSymbols = { ' ', '\t' };
bool isCommentOpen = false;
using (StreamReader sr = new StreamReader(fileName, System.Text.Encoding.Default))
{
string line;
while (null != (line = sr.ReadLine()))
{
while (true)
{
if (!isCommentOpen)
{
int lineCommentInd = line.IndexOf(comments.MonoComment, StringComparison.Ordinal);
int startCommentInd = line.IndexOf(comments.StartMultylineComment, StringComparison.Ordinal);
if (lineCommentInd == startCommentInd)
{
break;
}
if ((lineCommentInd < startCommentInd || -1 == startCommentInd) && -1 != lineCommentInd)
{
line = line.Substring(0, lineCommentInd);
break;
}
isCommentOpen = true;
int endCommentInd = line.IndexOf(comments.EndMultylineComment, StringComparison.Ordinal);
if (0 <= endCommentInd)
{
isCommentOpen = false;
if (endCommentInd + comments.EndMultylineComment.Length < line.Length)
{
line = line.Substring(0, startCommentInd) + line.Substring(endCommentInd + comments.EndMultylineComment.Length);
}
else
{
line = line.Substring(0, startCommentInd);
break;
}
}
else
{
line = line.Substring(0, startCommentInd);
break;
}
}
else
{
int endCommentInd = line.IndexOf(comments.EndMultylineComment, StringComparison.Ordinal);
if (0 <= endCommentInd)
{
isCommentOpen = false;
if (endCommentInd + comments.EndMultylineComment.Length < line.Length)
{
line = line.Substring(endCommentInd + comments.EndMultylineComment.Length);
}
else
{
line = "";
break;
}
}
else
{
line = "";
break;
}
}
}
line = line.Trim(ignoreSymbols);
if (0 != line.Length)
{
result++;
}
}
}
return(result);
}