private void InsertIntoData(int index, string value)
{
while (_parsedData.Count <= index)
{
_parsedData.Add(new ConfigValue(string.Empty, final: true));
}
_parsedData[index] = new ConfigValue(value, final: true);
}
private static ConfigValue CvDataFromCustom <T>(T value)
{
var str = value.ToString();
var escaped = ConfigValue.EscapeString(str);
if (str.Count(char.IsWhiteSpace) != 0 ||
escaped != str ||
string.IsNullOrEmpty(escaped))
{
escaped = $"\"{escaped}\"";
}
return(new ConfigValue(escaped));
}
private static T LoadToCollectionWrap <T>(ConfigValue config)
where T : class, new()
{
var keys = config.GetKeys();
if (keys.Length > 1)
{
throw new FormatException("Array can only contains values with the same identifier");
}
else if (keys.Length == 0)
{
return(new T());
}
var elementsType = typeof(T).GetGenericArguments().Single();
var genericLoadToCollection = MethodLoadToCollection.MakeGenericMethod(typeof(T), elementsType);
return((T)genericLoadToCollection.Invoke(null, new object[] { config.GetAll(keys[0]) }));
}
private static void ParseLevel(State state, string baseIndentation)
{
ConfigValue lastConfigValue = null;
while (state.Line < state.Data.Length)
{
var line = state.Data[state.Line].TrimEnd();
if (string.IsNullOrWhiteSpace(line))
{
state.Line += 1;
continue;
}
var lineIndentation = GetIndentation(line);
ValidateIndentationLevel(state, lineIndentation, baseIndentation);
if (lineIndentation.Length > baseIndentation.Length)
{
state.Context.Push(lastConfigValue);
ParseLevel(state, lineIndentation);
continue;
}
if (lineIndentation.Length < baseIndentation.Length)
{
state.Context.Pop();
break;
}
var data = line.Substring(lineIndentation.Length);
var len = data.IndexOfAny(new[] { ' ', '\t' });
var name = len < 0 ? data : data.Substring(0, len);
var value = len < 0 ? "" : data.Substring(len).Trim();
lastConfigValue = new ConfigValue(value);
state.Context.Peek().Set(
name,
lastConfigValue
);
state.Line += 1;
}
}
public static string SaveToString(ConfigValue config)
{
return(GenerateString(config, string.Empty));
}
public static void SaveToStream(ConfigValue config, TextWriter writer)
{
writer.Write(GenerateString(config, ""));
}
/// <summary>
/// Loads configuration to given Class type
/// </summary>
/// <typeparam name="T">Target class</typeparam>
/// <param name="config">Configuration</param>
/// <returns>Class, filled with configuration values oe null</returns>
public static T LoadToClass <T>(ConfigValue config)
where T : class, new()
{
if (config == null)
{
return(null);
}
if (typeof(T).GetInterfaces().Contains(typeof(ICollection)))
{
return(LoadToCollectionWrap <T>(config));
}
var instance = new T();
foreach (var field in typeof(T).GetFields())
{
var dataSourceAttribute = field.GetCustomAttribute <ConfigDataSourceAttribute>();
var path = dataSourceAttribute?.DataPath
?? field.Name.ToLowerInvariant();
if (!config.ContainsPath(path))
{
// Skipping not relevant fields
continue;
}
if (field.FieldType.GetTypeInfo().IsPrimitive ||
field.FieldType.GetConstructor(Type.EmptyTypes) == null)
{
var configValue = config.GetByPath(path);
var genericAsCustom =
configValue.AsConfigList().Count == 1
? MethodAsCustom.MakeGenericMethod(field.FieldType)
: MethodAsCustomFromRaw.MakeGenericMethod(field.FieldType);
var value = genericAsCustom.Invoke(configValue, null);
field.SetValue(instance, value);
}
else
{
var fieldType = field.FieldType;
var typeSource = field.GetCustomAttribute <ConfigDataTypeSourceAttribute>();
var typeName =
config.GetByPath(typeSource?.DataPath)
?.AsString()
?.ToLowerInvariant();
if (typeName != null)
{
var mapping = field.GetCustomAttributes <ConfigDataTypeMappingAttribute>();
fieldType = mapping
?.FirstOrDefault(attr => attr.TypeName == typeName)
?.FieldType
?? Assembly
.GetEntryAssembly()
.GetTypes()
.Where(t => field.FieldType.IsAssignableFrom(t))
.FirstOrDefault(t => t.Name.ToLowerInvariant() == typeName)
?? throw new TypeLoadException(
$"Can not find type with name '{typeName}'"
);
}
var genericLoadToClass = MethodLoadToClass.MakeGenericMethod(fieldType);
var innerInstance = genericLoadToClass.Invoke(null, new object[] { config.GetByPath(path) });
field.SetValue(instance, innerInstance);
}
}
return(instance);
}
private static void SetByPathNamed
(string path, ConfigValue root, ConfigValue value)
{
if (path == null || value == null)
{
return;
}
var pathLower = path.ToLowerInvariant().Trim().TrimStart('.');
var targetParent = root;
var target = root;
var name = ":";
while (!string.IsNullOrEmpty(pathLower))
{
if (char.IsDigit(pathLower.FirstOrDefault()))
{
var indexStr = new string(
pathLower.TakeWhile(char.IsDigit).ToArray()
);
var sindex = int.Parse(indexStr, NumberStyles.Integer, CultureInfo.InvariantCulture);
while (targetParent.GetAll(name).Count <= sindex)
{
targetParent.Set(name, "");
}
pathLower = pathLower.Substring(indexStr.Length).Trim().TrimStart('.');
target = targetParent.GetAll(name)[sindex];
}
else if (char.IsLetter(pathLower.First()))
{
var key = new string(
pathLower.TakeWhile(char.IsLetter).ToArray()
);
pathLower = pathLower.Substring(key.Length).Trim().TrimStart('.');
targetParent = target;
if (!target.Contains(key))
{
target.Set(key, Config.Create());
}
target = target.Get(key);
name = key;
}
else if (pathLower.First() == '$' && char.IsDigit(pathLower.ElementAtOrDefault(1)))
{
var indexStr = new string(
pathLower.Skip(1).TakeWhile(char.IsDigit).ToArray()
);
var sindex = int.Parse(indexStr, NumberStyles.Integer, CultureInfo.InvariantCulture);
target.InsertIntoData(sindex, value._parsedData.First()._data);
target._data = target.ParsedDataToRawString();
pathLower = pathLower.Substring(indexStr.Length + 1).Trim().TrimStart('.');
if (!string.IsNullOrEmpty(pathLower))
{
throw new FormatException(
$"Data arguments indexation must be the last operation. Rest: '{pathLower}'"
);
}
return;
}
else
{
throw new FormatException($"Unexpected symbol '{pathLower[0]}'({(byte)pathLower[0]})");
}
}
if (value._data != null)
{
target._data = value._data;
target._parsedData = value._parsedData;
}
foreach (var val in value._values)
{
target._values.Add(val.Key, val.Value);
}
}
/// <summary>
/// Saves new values with given name
/// </summary>
/// <param name="path">Path to the value</param>
/// <param name="value"></param>
/// <returns></returns>
public ConfigValue SetByPath(string path, ConfigValue value)
{
SetByPathNamed(path, this, value);
return(this);
}