/// <summary>
/// Calls the passed function for every non-empty and non-comment
/// string in the array. A path is still required, to be used as
/// root folder for include/require. If those aren't required,
/// pass null, which will also disable this feature.
///
/// TODO: Maybe add a DoString method, DRY.
/// </summary>
/// <param name="filePath"></param>
/// <param name="fn"></param>
public static void DoEach(string[] args, string filePath, LineDoer fn)
{
foreach (var arg in args)
{
var line = ParseLine(arg);
if (line == null)
continue;
bool require = false;
if (filePath != null && (line.StartsWith("include ") || (require = line.StartsWith("require "))))
{
var includeFilePath = Path.Combine(Path.GetDirectoryName(Path.GetFullPath(filePath)), line.Substring(8));
try
{
FileReader.DoEach(includeFilePath, fn);
}
catch (FileNotFoundException)
{
if (require)
throw new Exception("Required file '" + includeFilePath + "' not found.");
}
continue;
}
fn(line);
}
}
/// <summary>
/// Calls the passed function for every non-empty and non-comment
/// line in the file.
/// </summary>
/// <param name="filePath"></param>
/// <param name="fn"></param>
public static void DoEach(string filePath, LineDoer fn)
{
if (!File.Exists(filePath))
throw new FileNotFoundException("File not found.");
using (var sr = new StreamReader(filePath))
{
string line;
while ((line = sr.ReadLine()) != null)
{
line = ParseLine(line);
if (line == null)
continue;
bool require = false;
// Including (include foo.conf)
if (line.StartsWith("include ") || (require = line.StartsWith("require ")))
{
var includeFilePath = Path.Combine(Path.GetDirectoryName(Path.GetFullPath(filePath)), line.Substring(8));
try
{
FileReader.DoEach(includeFilePath, fn);
}
catch (FileNotFoundException)
{
// Ignore exceptions for includes
if (require)
throw new Exception("Required file '" + includeFilePath + "' not found.");
}
continue;
}
fn(line);
}
}
}
