private static bool ExtractLineParts(string line, out SourceCodePosition start, out SourceCodePosition end, out string fileName)
{
start = new SourceCodePosition();
end = new SourceCodePosition();
fileName = (string)null;
line = line.TrimStart();
if (!line.StartsWith(".line"))
{
return(false);
}
line = line.Substring(5).Trim();
if (string.IsNullOrEmpty(line))
{
return(false);
}
int startIndex = 0;
string lineText1 = (string)null;
string lineText2 = (string)null;
string columnText1 = (string)null;
string columnText2 = (string)null;
StringBuilder stringBuilder = new StringBuilder(line.Length);
bool flag = false;
for (int index = 0; index < line.Length; ++index)
{
char ch = line[index];
if ((int)ch == 39)
{
if (!flag)
{
string str = line.Substring(startIndex, index - startIndex).Trim();
if (columnText2 == null)
{
columnText2 = str;
}
}
flag = !flag;
}
else if (flag)
{
stringBuilder.Append(ch);
}
else if ((int)ch == 44 || (int)ch == 58)
{
string str = line.Substring(startIndex, index - startIndex).Trim();
startIndex = index + 1;
switch (ch)
{
case ',':
if (lineText1 == null)
{
lineText1 = str;
continue;
}
columnText1 = str;
continue;
case ':':
if (lineText2 == null)
{
lineText2 = str;
continue;
}
columnText2 = str;
continue;
default:
continue;
}
}
}
start = SourceCodePosition.FromText(lineText1, columnText1) ?? start;
end = SourceCodePosition.FromText(lineText2, columnText2) ?? end;
fileName = stringBuilder.Length > 0 ? stringBuilder.ToString() : (string)null;
return(fileName != null);
}
public SourceCodeRange(string fileName, SourceCodePosition startPosition, SourceCodePosition endPosition)
{
this.FileName = fileName;
this.StartPosition = startPosition;
this.EndPosition = endPosition;
}
