public static FilterSettings FromString(string settingsString)
{
if (string.IsNullOrEmpty(settingsString))
{
return(null);
}
// parse filter name
int startCharPos = settingsString.IndexOf(SettingsListStartCharacter);
if (startCharPos < 1)
{
Logger.log.Warn("Unable to deserialize string to FilterSettings object.");
return(null);
}
try
{
while (settingsString[startCharPos - 1] == EscapeCharacter)
{
startCharPos = settingsString.IndexOf(SettingsListStartCharacter, startCharPos + 1);
}
}
catch (ArgumentOutOfRangeException)
{
Logger.log.Warn("Unable to deserialize string to FilterSettings object.");
return(null);
}
StringBuilder name = new StringBuilder(settingsString.Substring(0, startCharPos)).UnescapeString(EscapeCharacter, EscapeMapping);
FilterSettings filterSettings = new FilterSettings();
filterSettings.Name = name.ToString();
// parse filter settings
int endCharPos = settingsString.IndexOf(SettingsListEndCharacter, startCharPos);
if (endCharPos < 0)
{
return(null);
}
string[] settings = settingsString.Substring(startCharPos + 1, endCharPos - startCharPos - 1).Split(SettingsListSeparatorCharacter);
foreach (var setting in settings)
{
var kv = FilterSettingsKeyValuePair.FromString(new StringBuilder(setting).UnescapeString(EscapeCharacter, EscapeMapping).ToString());
if (kv != null)
{
filterSettings.Settings.Add(kv);
}
}
return(filterSettings);
}
public static FilterSettings FromString(string settingsString)
{
if (string.IsNullOrEmpty(settingsString))
{
return(null);
}
// parse filter name
int startCharPos = settingsString.IndexOf(SettingsListStartCharacter);
if (startCharPos < 1)
{
Logger.log.Warn("Unable to deserialize string to FilterSettings object.");
return(null);
}
try
{
while (settingsString[startCharPos - 1] == EscapeCharacter)
{
startCharPos = settingsString.IndexOf(SettingsListStartCharacter, startCharPos + 1);
}
}
catch (ArgumentOutOfRangeException)
{
Logger.log.Warn("Unable to deserialize string to FilterSettings object.");
return(null);
}
StringBuilder name = new StringBuilder(settingsString.Substring(0, startCharPos));
for (int i = 0; i < name.Length; ++i)
{
if (name[i] == EscapeCharacter && (i + 1) < name.Length)
{
char c = name[i + 1];
switch (c)
{
case EscapeCharacter:
name.Replace($"{EscapeCharacter}{EscapeCharacter}", EscapeCharacter.ToString(), i, 1);
break;
case NewLineReplacementCharacter:
name.Replace($"{EscapeCharacter}{NewLineReplacementCharacter}", "\n", i, 1);
break;
case BackslashReplacementCharacter:
name.Replace($"{EscapeCharacter}{BackslashReplacementCharacter}", "\\", i, 1);
break;
case SettingsListStartCharacter:
name.Replace($"{EscapeCharacter}{SettingsListStartCharacter}", SettingsListStartCharacter.ToString(), i, 1);
break;
default:
name.Remove(i, 1);
--i;
break;
}
}
}
FilterSettings filterSettings = new FilterSettings();
filterSettings.Name = name.ToString();
// parse filter settings
int endCharPos = settingsString.IndexOf(SettingsListEndCharacter, startCharPos);
if (endCharPos < 0)
{
return(null);
}
string[] settings = settingsString.Substring(startCharPos + 1, endCharPos - startCharPos - 1).Split(SettingsListSeparatorCharacter);
foreach (var setting in settings)
{
var kv = FilterSettingsKeyValuePair.FromString(setting);
if (kv != null)
{
filterSettings.Settings.Add(kv);
}
}
return(filterSettings);
}