/// <inheritdoc />
public override void OnValue(string value, ValueType type)
{
if (type == ValueType.Null)
{
JsonWriter.WriteNull();
return;
}
if (type == ValueType.Boolean && bool.TryParse(value, out var boolValue))
{
JsonWriter.WriteValue(boolValue);
}
else
{
if (type == ValueType.Number && decimal.TryParse(value, out var numberValue))
{
if (numberValue % 1 == 0)
{
JsonWriter.WriteValue((long)numberValue);
}
else
{
JsonWriter.WriteValue(numberValue);
}
}
else
{
JsonWriter.WriteValue(value);
}
}
}
/// <summary>
/// Resolves literal value of <see cref="Alias"/>.
/// </summary>
/// <param name="alias">Instance of <see cref="Alias"/>.</param>
/// <param name="valueType">Value type of the resolved literal.</param>
/// <returns>String representing literal value of the <see cref="Alias"/>.</returns>
protected string ResolveValueAlias(Alias alias, out ValueType valueType)
{
var aliasDef = alias.AliasDefinition;
AliasContext.Push(new AliasContextInfo(alias, CurrentModuleMember));
CurrentModuleMember = aliasDef;
string result;
if (aliasDef.ValueType == ValueType.LiteralChoice)
{
result = ResolveChoiceValue(alias, out valueType);
}
else
{
result = aliasDef.PairValue == null
? ResolveValue(aliasDef, out valueType)
: ResolvePairValue(aliasDef.PairValue, out valueType);
}
CurrentModuleMember = AliasContext.Pop().ModuleMember;
return(result);
}
private string ResolvePairValue(object pairValue, out ValueType valueType)
{
if (pairValue is Parameter value)
{
return(ResolveValueParameter(value, out valueType));
}
var alias = pairValue as Alias;
valueType = ValueType.None;
return(alias != null?ResolveValueAlias(alias, out valueType) : null);
}
protected string ResolveNodeValue(IMappedPair pair, out ValueType valueType)
{
if (pair.ValueType != ValueType.DoubleQuotedString &&
pair.ValueType != ValueType.Concatenation)
{
if (((Pair)pair).PairValue != null)
{
return(ResolvePairValue(((Pair)pair).PairValue, out valueType));
}
valueType = pair.ValueType;
return(((Pair)pair).Delimiter != DelimiterEnum.None ? ((Pair)pair).Value : ((Pair)pair).Name);
}
return(ResolveValueInInterpolation(pair, out valueType));
}
private ValueType GetJsonValueType(string value, ValueType defaultType)
{
if (value == "true" || value == "false")
{
return(ValueType.Boolean);
}
if (value == "null")
{
return(ValueType.Null);
}
if (Regex.Match(value, @"^-?(?:0|[1-9]\d*)(?:\.\d+)?(?:[eE][+-]?\d+)?$").Success)
{
return(ValueType.Number);
}
return(defaultType);
}
/// <summary>
/// Resolves value of the value parameter.
/// </summary>
/// <param name="parameter">Parameter.</param>
/// <param name="valueType">Calculated <see cref="ValueType"/></param>
/// <returns>Literal value of parameter.</returns>
protected string ResolveValueParameter(Parameter parameter, out ValueType valueType)
{
var aliasContext = GetAliasContextForParameter(parameter).Alias;
if (parameter.Name == "_")
{
//Resolving default value parameter
if (aliasContext.PairValue != null)
{
return(ResolvePairValue(aliasContext.PairValue, out valueType));
}
return(ResolveValue(aliasContext, out valueType));
}
var argument = aliasContext.Arguments.FirstOrDefault(a => a.Name == parameter.Name);
if (argument != null)
{
if (argument.PairValue != null)
{
return(ResolvePairValue(argument.PairValue, out valueType));
}
if (((IMappedPair)argument?.Parent).BlockType == BlockType.JsonObject && argument.Entities.Count > 0)
{
var ent = argument.Entities.First(e => e != null);
valueType = ((IMappedPair)ent).ValueType;
return(ent.Value ?? ent.Name);
}
valueType = ((IMappedPair)argument).ValueType;
return(argument.Value);
}
//if argument is not found lookup default value in the Alias Definition
//var paramDef = aliasContext.AliasDefinition.Parameters.First(p => p.Name == parameter.Name);
//If parameters default value is Parameter or Alias then resolve it
if (parameter.PairValue != null)
{
return(ResolvePairValue(parameter.PairValue, out valueType));
}
valueType = parameter.ValueType;
return(parameter.Value);
}
/// <summary>
/// Resolves literal value of the pair.
/// </summary>
/// <param name="pair"><see cref="Pair"/> with the literal value.</param>
/// <param name="valueType">Calculated type of the value.</param>
/// <returns>String representing literal value of the pair.</returns>
protected string ResolveValue(IMappedPair pair, out ValueType valueType)
{
if (pair.ValueType != ValueType.DoubleQuotedString &&
pair.ValueType != ValueType.Concatenation)
{
if (((Pair)pair).PairValue != null)
{
return(ResolvePairValue(((Pair)pair).PairValue, out valueType));
}
if (((Pair)pair).Assignment.IsObjectAssignment() && pair.IsValueNode) //JSONObject block type. Value is defined by the first child
{
return(ResolveValue((IMappedPair)((IContainer)pair).Entities.First(), out valueType));
}
valueType = pair.ValueType;
return(((Pair)pair).Assignment != AssignmentEnum.None ? ((Pair)pair).Value : ((Pair)pair).Name);
}
return(ResolveValueInInterpolation(pair, out valueType));
}
private void ResolveConcatenation(Pair pair)
{
var p = pair as IPairWithInterpolation;
if (p?.InterpolationItems == null || p.InterpolationItems.Count == 0)
{
OnValue("", ValueType.Concatenation);
return;
}
var sb = new StringBuilder();
ValueType resultValueType = ValueType.None;
foreach (var item in p.InterpolationItems)
{
ValueType valueType = ValueType.None;
object value = item as Parameter;
if (value != null)
{
sb.Append(ResolveValueParameter((Parameter)value, out valueType));
}
else
{
value = item as Alias;
if (value != null)
{
sb.Append(ResolveValueAlias((Alias)value, out valueType));
}
else if (((IMappedPair)item).IsValueNode)
{
sb.Append(ResolveValue((IMappedPair)item, out valueType));
}
}
resultValueType = resultValueType == ValueType.None ? valueType : ValueType.Concatenation;
}
if (resultValueType == ValueType.None)
{
resultValueType = ValueType.Concatenation;
}
OnValue(sb.ToString(), resultValueType);
}
protected string ResolveValueParameter(Parameter parameter, out ValueType valueType)
{
var aliasContext = GetAliasContextForParameter(parameter);
if (parameter.Name == "_")
{
//Resolving default value parameter
if (aliasContext.Alias.PairValue != null)
{
return(ResolvePairValue(aliasContext.Alias.PairValue, out valueType));
}
return(ResolveNodeValue(aliasContext.Alias, out valueType));
}
var argument = aliasContext.Alias.Arguments.FirstOrDefault(a => a.Name == parameter.Name);
if (argument != null)
{
if (argument.PairValue != null)
{
return(ResolvePairValue(argument.PairValue, out valueType));
}
valueType = ((IMappedPair)argument).ValueType;
return(argument.Value);
}
//if argument is not found lookup default value in the Alias Definition
//var paramDef = aliasContext.AliasDefinition.Parameters.First(p => p.Name == parameter.Name);
//If parameteres default value is Parameter or Alias then resolve it
if (parameter.PairValue != null)
{
return(ResolvePairValue(parameter.PairValue, out valueType));
}
valueType = parameter.ValueType;
return(parameter.Value);
}
protected string ResolveValueAlias(Alias alias, out ValueType valueType)
{
var aliasDef = NamespaceResolver.GetAliasDefinition(alias.Name);
AliasContext.Push(new AliasContext {
AliasDefinition = aliasDef, Alias = alias, AliasNsInfo = GetContextNsInfo()
});
string result;
if (aliasDef.ValueType == ValueType.LiteralChoice)
{
result = ResolveChoiceValue(alias, out valueType);
}
else
{
result = aliasDef.PairValue == null?ResolveNodeValue(aliasDef, out valueType) : ResolvePairValue(aliasDef.PairValue, out valueType);
}
AliasContext.Pop();
return(result);
}
protected override string ResolveChoiceValue(Pair pair, out ValueType valueType)
{
var choice = _choiceStack.Peek();
var choiceInfo = FindChoiceInfo(choice, pair);
if (choice.ChoiceNode != pair)
{
_choiceStack.Push(choiceInfo);
}
string result = string.Empty;
valueType = ValueType.OpenString;
if (choice.Children != null)
{
_choiceStack.Push(choiceInfo.Children[0]);
result = ResolveNodeValue((IMappedPair)choiceInfo.Children[0].ChoiceNode, out valueType);
_choiceStack.Pop();
}
if (choice.ChoiceNode != pair)
{
_choiceStack.Pop();
}
return(result);
}
public override void OnValue(string value, ValueType type)
{
_xmlTextWriter.WriteString(value);
}
protected override string ResolveChoiceValue(Pair pair, out ValueType valueType) // todo: Implement choice validation
{
valueType = ValueType.None;
return("");
}
protected virtual string ResolveChoiceValue(Pair pair, out ValueType valueType)
{
throw new NotImplementedException();
}
/// <summary> /// Method is called for pair with literal choice assignment <b>=::</b>. /// </summary> /// <param name="pair">Pair with literal choice assignment</param> /// <param name="valueType">Literal value type of the resolved case.</param> /// <returns>String representing resolved literal value of the pair.</returns> protected abstract string ResolveChoiceValue(Pair pair, out ValueType valueType);
/// <summary>
/// Method called when the value of the current pair is resolved.
/// </summary>
/// <param name="value">String representing the value of the current pair.</param>
/// <param name="type">Type of value.</param>
public virtual void OnValue(string value, ValueType type)
{
}
private string ResolveValueInInterpolation(IMappedPair node, out ValueType valueType)
{
var sb = new StringBuilder();
object previousLine = null;
int eolCount = 0;
valueType = node.ValueType; //default value
if (((IPairWithInterpolation)node).InterpolationItems != null)
{
foreach (var item in ((IPairWithInterpolation)node).InterpolationItems)
{
if (item is EscapeMatch escapeMatch)
{
if (escapeMatch is EolEscapeMatch match)
{
ResolveDqsEol(match, sb, node.ValueIndent, previousLine);
eolCount++;
}
else
{
if (eolCount == 1)
{
sb.Append(" ");
}
ResolveDqsEscape(escapeMatch, sb);
eolCount = 0;
}
previousLine = item;
continue;
}
if (eolCount == 1)
{
sb.Append(" ");
}
eolCount = 0;
if (item is Alias alias)
{
sb.Append(ResolveValueAlias(alias, out valueType));
previousLine = item;
continue;
}
if (item is Parameter param)
{
sb.Append(ResolveValueParameter(param, out valueType));
previousLine = item;
continue;
}
if (item is Element element)
{
sb.Append(ResolveValue(element, out valueType));
previousLine = item;
continue;
}
sb.Append(item);
previousLine = item;
}
if (((IPairWithInterpolation)node).InterpolationItems.Count > 1)
{
valueType = node.ValueType; //restore default value if there are more then 1 interpolation items
}
}
return(sb.ToString());
}
