/// <summary>
/// Register a custom option parser.
/// </summary>
/// <param name="parser">Registers the parser, if the associated type does not already have a parser registered.</param>
/// <param name="replace">If set to true, the parser will be registered in place of an existing parser for its type.</param>
public static void RegisterParser(ParserBase parser, bool replace = false)
{
if (replace || !Parsers.ContainsKey(parser.Type))
{
Parsers[parser.Type] = parser;
}
}
/// <summary>
/// Converts a config file text to the a config object of the specified type.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="lines">The lines of the config file to be converted</param>
/// <returns>The converted config object</returns>
public static T Parse <T>(IEnumerable <string> lines) where T : new()
{
T config = (T)Activator.CreateInstance(typeof(T));
foreach (string line in lines)
{
Match match = Regex.Match(line, $"^<{_allowedCharacters}>\\[{_allowedCharacters}\\]:");
if (match.Success)
{
string optionString = match.Value;
string valueString = line.Substring(optionString.Length);
string typeTag = Regex.Match(optionString, $"<{_allowedCharacters}>").Value;
typeTag = typeTag.Substring(1, typeTag.Length - 2);
string optionName = Regex.Match(optionString, $"\\[{_allowedCharacters}\\]").Value;
optionName = optionName.Substring(1, optionName.Length - 2);
bool successflag = false;
foreach (PropertyInfo property in typeof(T).GetProperties())
{
ParserBase parser = null;
foreach (ParserBase p in Parsers.Values)
{
if (p.Tag.Equals(typeTag))
{
parser = p;
break;
}
}
if (parser == null)
{
throw new ConfigException($"No parser found with tag '{typeTag}'");
}
object[] attr = property.GetCustomAttributes(typeof(Option), true);
Option optionAttribute = attr.Length > 0 ? (Option)attr[0] : null;
//if ((optionAttribute != null && ((optionAttribute.Name != null && optionName.Equals(optionAttribute.Name)) || )) || (configAttribute.UseAllProperties && property.Name.Equals(optionName)))
if (optionAttribute != null)
{
if (!string.IsNullOrEmpty(optionAttribute.Name))
{
if (optionAttribute.Name.Equals(optionName))
{
property.SetValue(config, parser.Decode(valueString.Trim()));
successflag = true;
break;
}
}
else
{
if (property.Name.Equals(optionName))
{
property.SetValue(config, parser.Decode(valueString.Trim()));
successflag = true;
break;
}
}
}
else
{
if (property.Name.Equals(optionName))
{
property.SetValue(config, parser.Decode(valueString.Trim()));
successflag = true;
break;
}
}
}
if (!successflag)
{
throw new ConfigException($"Failed to map option {optionName} to a property of {typeof(T)}");
}
}
}
return(config);
}
/// <summary>
/// Serializes a config
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="config">The config object to serialize</param>
/// <returns>An array of lines that make up the config file text</returns>
public static string[] Serialize <T>(T config)
{
Config configAttribute = GetAttribute <T>();
//Get options
List <string> regions = new List <string> {
""
};
List <KeyValuePair <PropertyInfo, Option> > options = new List <KeyValuePair <PropertyInfo, Option> >();
foreach (PropertyInfo member in typeof(T).GetProperties())
{
object[] attr = member.GetCustomAttributes(typeof(Option), true);
Option optionAttribute = attr.Length > 0 ? (Option)attr[0] : null;
if (optionAttribute != null || configAttribute.UseAllProperties)
{
options.Add(new KeyValuePair <PropertyInfo, Option>(member, (optionAttribute == null ? new Option() : optionAttribute)));
if (optionAttribute != null && !regions.Contains(optionAttribute.Region))
{
regions.Add(optionAttribute.Region);
}
}
}
options.Sort((a, b) =>
{
if (a.Value.Region.CompareTo(b.Value.Region) != 0)
{
return(a.Value.Region.CompareTo(b.Value.Region));
}
else
{
string aName = string.IsNullOrEmpty(a.Key.Name) ? a.Key.Name : a.Key.Name;
string bName = string.IsNullOrEmpty(b.Key.Name) ? b.Key.Name : b.Key.Name;
return(aName.CompareTo(bName));
}
});
//Get comments
List <KeyValuePair <string, string> > comments = new List <KeyValuePair <string, string> >();
foreach (object attr in typeof(T).GetCustomAttributes(typeof(Comment), true))
{
Comment comment = (Comment)attr;
comments.Add(new KeyValuePair <string, string>(comment.Region, comment.Text));
if (!regions.Contains(comment.Region))
{
regions.Contains(comment.Region);
}
}
comments.Sort((a, b) =>
{
return(a.Key.CompareTo(b.Key));
});
regions.Sort();
//Write content
List <string> lines = new List <string>();
if (!string.IsNullOrEmpty(configAttribute.Header))
{
Writer.Header(lines, configAttribute.Header);
}
foreach (string r in regions)
{
if (!string.IsNullOrEmpty(r))
{
Writer.Region(lines, r);
}
foreach (var comment in comments.Where(c => c.Key.Equals(r)))
{
Writer.Comment(lines, comment.Value);
}
foreach (var option in options.Where(o => o.Value.Region.Equals(r)))
{
if (!string.IsNullOrEmpty(option.Value.Comment))
{
Writer.Comment(lines, option.Value.Comment);
}
Type type = option.Key.PropertyType;
string name = string.IsNullOrEmpty(option.Value.Name) ? option.Key.Name : option.Value.Name;
if (!Parsers.ContainsKey(type))
{
throw new ConfigException($"No parser registered for type {type}!");
}
ParserBase parser = Parsers[type];
if (!Regex.IsMatch(name, $"^{_allowedCharacters}$"))
{
throw new ConfigException($"The specified option name ({name}) is invalid.");
}
if (!Regex.IsMatch(parser.Tag, $"^{_allowedCharacters}$"))
{
throw new ConfigException($"The supplied parser for type {type} has an invalid tag: '{parser.Tag}' contains illegal characters.");
}
string value = parser.Encode(option.Key.GetValue(config));
lines.Add($"<{parser.Tag}>[{name}]: {value}");
}
}
return(lines.ToArray());
}
