/// <summary>
/// Parse a REW filters output file
/// The users regional locale is also taken into consideration
/// </summary>
/// <param name="filePath">path to file</param>
/// <returns>a rew eq filter object</returns>
public static REWEQFilters ReadREWEQFiltersFile(string filePath)
{
REWEQFilters filters = new REWEQFilters();
// Get current culture's NumberFormatInfo object.
NumberFormatInfo nfi = CultureInfo.CurrentCulture.NumberFormat;
//NumberFormatInfo nfi = CultureInfo.InvariantCulture.NumberFormat; // For debugging
// Assign needed property values to variables.
string decimalSeparator = nfi.NumberDecimalSeparator;
// Form regular expression pattern using the current culture's decimal seperator.
Regex digitsAndDecimalSeparatorOnly = new Regex(@"[^\d" + Regex.Escape(decimalSeparator) + "]");
using (StreamReader r = new StreamReader(filePath))
{
string line;
int filterCount = 0;
string regexpPattern = @"^Filter\s+\d+";
bool usingBWOct = false;
while ((line = r.ReadLine()) != null)
{
if (line.StartsWith("Equaliser:")) {
// find out what filter parse rule to use
if (line.Equals("Equaliser: FBQ2496")) {
// Filter 1: ON PEQ Fc 64,0 Hz Gain -5,0 dB BW Oct 0,167
regexpPattern = @"^Filter\s+\d+:\s(\w+)\s+(\w+)\s+Fc ([\D\d" +
Regex.Escape(decimalSeparator) + @"]+) Hz Gain ([\s\d" +
Regex.Escape(decimalSeparator) + @"\-]+) dB BW Oct ([\s\d" +
Regex.Escape(decimalSeparator) + @"]+)$";
usingBWOct = true;
} else if(line.Equals("Equaliser: Generic")) {
// Filter 1: ON PK Fc 63,8 Hz Gain -5,0 dB Q 8,06
regexpPattern = @"^Filter\s+\d+:\s(\w+)\s+(\w+)\s+Fc ([\D\d" +
Regex.Escape(decimalSeparator) + @"]+) Hz Gain ([\s\d" +
Regex.Escape(decimalSeparator) + @"\-]+) dB Q ([\s\d" +
Regex.Escape(decimalSeparator) + @"]+)$";
usingBWOct = false;
} else {
Console.Error.WriteLine("No known equaliser format!", line);
return null;
}
}
// skip all lines that does not start with "Filter <number>:"
if (Regex.IsMatch(line, @"^Filter\s+\d+:")) {
// remove any non breaking spaces
line = Regex.Replace(line, "\xA0", String.Empty);
// skip line if filter type is "None"
if(Regex.Match(line, @"^Filter\s+\d+:\s+ON\s+None.*$").Success) continue;
Match match = Regex.Match(line, regexpPattern);
if (match.Success) {
filterCount++;
string enabled = match.Groups[1].Value.Trim();
string type = match.Groups[2].Value.Trim();
string freq = match.Groups[3].Value.Trim();
freq = digitsAndDecimalSeparatorOnly.Replace(freq, "");
string gain = match.Groups[4].Value.Trim();
string q = match.Groups[5].Value.Trim();
REWEQBand band = new REWEQBand();
if (enabled.Equals("ON")) band.Enabled = true;
if (type.Equals("PEQ") || type.Equals("PK")) band.FilterType = REWEQFilterType.PK;
try {
band.FilterFreq = Double.Parse(freq, nfi);
band.FilterGain = Double.Parse(gain, nfi);
if (usingBWOct) {
band.FilterBWOct = Double.Parse(q, nfi);
band.FilterQ = BWOct2Q(band.FilterBWOct);
} else {
band.FilterQ = Double.Parse(q, nfi);
band.FilterBWOct = Q2BWOct(band.FilterQ);
}
} catch (Exception e) {
Console.Error.WriteLine("Parse error", e.Message);
return null;
}
filters.EqBands.Add(band);
} else {
// By some reason we failed parsing the Filter line which should have worked!
// probably a locale problem
Console.Error.WriteLine("Could not parse line: {0}", line);
MessageBox.Show(new Form() { WindowState = FormWindowState.Maximized, TopMost = true },
"Failed parsing filter line using Culture: " + CultureInfo.CurrentCulture.DisplayName + ". Does the REW filter file use this Culture? (e.g. '"
+ nfi.NumberDecimalSeparator + "' as the Decimal Separator?)" +
"\n\nUnparsable line:\n" +
line,
"Critical Warning!",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
return null;
}
}
}
}
return filters;
}
/// <summary>
/// Parse a REW filters output file
/// The users regional locale is also taken into consideration
/// </summary>
/// <param name="filePath">path to file</param>
/// <returns>a rew eq filter object</returns>
public static REWEQFilters ReadREWEQFiltersFile(string filePath)
{
REWEQFilters filters = new REWEQFilters();
// Get current culture's NumberFormatInfo object.
NumberFormatInfo nfi = CultureInfo.CurrentCulture.NumberFormat;
//NumberFormatInfo nfi = CultureInfo.InvariantCulture.NumberFormat; // For debugging
// Assign needed property values to variables.
string decimalSeparator = nfi.NumberDecimalSeparator;
// Form regular expression pattern using the current culture's decimal seperator.
Regex digitsAndDecimalSeparatorOnly = new Regex(@"[^\d" + Regex.Escape(decimalSeparator) + "]");
using (StreamReader r = new StreamReader(filePath))
{
string line;
int filterCount = 0;
string regexpPattern = @"^Filter\s+\d+";
bool usingBWOct = false;
while ((line = r.ReadLine()) != null)
{
if (line.StartsWith("Equaliser:"))
{
// find out what filter parse rule to use
if (line.Equals("Equaliser: FBQ2496"))
{
// Filter 1: ON PEQ Fc 64,0 Hz Gain -5,0 dB BW Oct 0,167
regexpPattern = @"^Filter\s+\d+:\s(\w+)\s+(\w+)\s+Fc ([\D\d" +
Regex.Escape(decimalSeparator) + @"]+) Hz Gain ([\s\d" +
Regex.Escape(decimalSeparator) + @"\-]+) dB BW Oct ([\s\d" +
Regex.Escape(decimalSeparator) + @"]+)$";
usingBWOct = true;
}
else if (line.Equals("Equaliser: Generic"))
{
// Filter 1: ON PK Fc 63,8 Hz Gain -5,0 dB Q 8,06
regexpPattern = @"^Filter\s+\d+:\s(\w+)\s+(\w+)\s+Fc ([\D\d" +
Regex.Escape(decimalSeparator) + @"]+) Hz Gain ([\s\d" +
Regex.Escape(decimalSeparator) + @"\-]+) dB Q ([\s\d" +
Regex.Escape(decimalSeparator) + @"]+)$";
usingBWOct = false;
}
else
{
Console.Error.WriteLine("No known equaliser format!", line);
return(null);
}
}
// skip all lines that does not start with "Filter <number>:"
if (Regex.IsMatch(line, @"^Filter\s+\d+:"))
{
// remove any non breaking spaces
line = Regex.Replace(line, "\xA0", String.Empty);
// skip line if filter type is "None"
if (Regex.Match(line, @"^Filter\s+\d+:\s+ON\s+None.*$").Success)
{
continue;
}
Match match = Regex.Match(line, regexpPattern);
if (match.Success)
{
filterCount++;
string enabled = match.Groups[1].Value.Trim();
string type = match.Groups[2].Value.Trim();
string freq = match.Groups[3].Value.Trim();
freq = digitsAndDecimalSeparatorOnly.Replace(freq, "");
string gain = match.Groups[4].Value.Trim();
string q = match.Groups[5].Value.Trim();
REWEQBand band = new REWEQBand();
if (enabled.Equals("ON"))
{
band.Enabled = true;
}
if (type.Equals("PEQ") || type.Equals("PK"))
{
band.FilterType = REWEQFilterType.PK;
}
try {
band.FilterFreq = Double.Parse(freq, nfi);
band.FilterGain = Double.Parse(gain, nfi);
if (usingBWOct)
{
band.FilterBWOct = Double.Parse(q, nfi);
band.FilterQ = BWOct2Q(band.FilterBWOct);
}
else
{
band.FilterQ = Double.Parse(q, nfi);
band.FilterBWOct = Q2BWOct(band.FilterQ);
}
} catch (Exception e) {
Console.Error.WriteLine("Parse error", e.Message);
return(null);
}
filters.EqBands.Add(band);
}
else
{
// By some reason we failed parsing the Filter line which should have worked!
// probably a locale problem
Console.Error.WriteLine("Could not parse line: {0}", line);
MessageBox.Show(new Form()
{
WindowState = FormWindowState.Maximized, TopMost = true
},
"Failed parsing filter line using Culture: " + CultureInfo.CurrentCulture.DisplayName + ". Does the REW filter file use this Culture? (e.g. '"
+ nfi.NumberDecimalSeparator + "' as the Decimal Separator?)" +
"\n\nUnparsable line:\n" +
line,
"Critical Warning!",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
return(null);
}
}
}
}
return(filters);
}
