private static Rule ParseFieldRule(JObject json, RuleOptions options)
{
// parse operator
string operatorStr = json[TokenName.Operator]?.ToString() ?? throw new ArgumentException("Missing 'operator'");
operatorStr = Regex.Replace(operatorStr.ToLowerInvariant(), @"[^a-z]", "");
Operator op = Enum.Parse <Operator>(operatorStr, true);
// parse field type
string fieldTypeStr = json[TokenName.Type]?.ToString() ?? throw new ArgumentException("Missing 'type'");
FieldType fieldType = Enum.Parse <FieldType>(fieldTypeStr, true);
FieldRule ruleObj = fieldType switch
{
FieldType.String => FieldRule.Create <string>(op),
FieldType.Integer => FieldRule.Create <long>(op),
FieldType.Double => FieldRule.Create <double>(op),
FieldType.Boolean => FieldRule.Create <bool>(op),
FieldType.DateTime => FieldRule.Create <DateTimeOffset>(op),
FieldType.Date => FieldRule.Create <DateTime>(op),
FieldType.Duration => FieldRule.Create <TimeSpan>(op),
_ => throw new ArgumentOutOfRangeException()
};
ruleObj.Options = options;
ruleObj.Field = json[TokenName.Field]?.ToString() ?? throw new ArgumentException("Missing 'field'");
ruleObj.Value = json[TokenName.Value];
return(ruleObj);
}
}
private static Rule ParseCondition(JObject json, JToken conditionToken, RuleOptions options)
{
// create condition
var conditionObj = Condition.Create((string)conditionToken);
conditionObj.Options = options;
// process rules
if (json.TryGetValue(TokenName.Rules, out JToken rulesToken) && rulesToken is JArray rulesArray)
{
foreach (JToken subRule in rulesArray)
{
if (subRule is JObject subRuleObj)
{
conditionObj.Rules.Add(Rule.Parse(subRuleObj, options));
}
}
}
// handle NOT
if (json.TryGetValue(TokenName.Not, out JToken notToken) && notToken.Type == JTokenType.Boolean)
{
conditionObj.Not = notToken.Value <bool>();
}
return(conditionObj);
}
public static Rule Parse(JObject json, RuleOptions options)
{
// condition (rule set)
if (json.TryGetValue(TokenName.Condition, out JToken conditionToken))
{
return(ParseCondition(json, conditionToken, options));
}
return(ParseFieldRule(json, options));
}
public HighlightWordsRule(XElement rule)
{
Words = new List <string>();
Options = new RuleOptions(rule);
var wordsStr = rule.Element("Words").Value;
var words = Regex.Split(wordsStr, "\\s+");
foreach (var word in words)
{
if (!string.IsNullOrWhiteSpace(word))
{
Words.Add(word.Trim());
}
}
}
public static RuleOptions BuildOptions(string conf)
{
var optionStrings = conf.Trim('[', ']').Split(',').Select(o => o.Trim());
RuleOptions options = RuleOptions.None;
foreach (var o in optionStrings)
{
if (OptionLookup.ContainsKey(o))
{
options |= OptionLookup[o];
}
else
{
//conf.Dump();
throw new Exception("UNKNOWN OPTION: " + o);
}
}
return(options);
}
public AdvancedHighlightRule(XElement rule)
{
Expression = rule.Element("Expression").Value.Trim();
Options = new RuleOptions(rule);
}
public HighlightLineRule(XElement rule)
{
LineStart = rule.Element("LineStart").Value.Trim();
Options = new RuleOptions(rule);
}
public HighlightLineRule(XElement rule)
{
LineStart = rule.Element("LineStart").Value.Trim();
Options = new RuleOptions(rule);
}
public AdvancedHighlightRule(XElement rule)
{
Expression = rule.Element("Expression").Value.Trim();
Options = new RuleOptions(rule);
}
public HighlightWordsRule(XElement rule)
{
Words = new List<string>();
Options = new RuleOptions(rule);
string wordsStr = rule.Element("Words").Value;
string[] words = Regex.Split(wordsStr, "\\s+");
foreach (string word in words)
if (!string.IsNullOrWhiteSpace(word))
Words.Add(word.Trim());
}
/// <summary>
/// Creates a new expression tree serializer instance, with the specified configuration parameters.
/// Additional rules may be added using the Rules property.
/// </summary>
/// <param name="options">Rule set configuration flags.</param>
/// <param name="typeResolutionService">Type resolution service. Can be null.</param>
public ExpressionJsonSerializer(RuleOptions options, ITypeResolutionService typeResolutionService)
: this(RuleConfiguration.Get(options), typeResolutionService)
{
}
/// <summary>
/// Constructs a rule table with the specified configuration optiosn.
/// </summary>
/// <param name="options">Configuration options for the resulting rule table.</param>
/// <returns>Rule table with the specified configuration options.</returns>
private static RuleTableBase <object, Json.Expression, ExpressionJsonSerializationContext> CreateRuleTable(RuleOptions options)
{
var baseTable = ExpressionTreeRuleTable.Instance;
var res = baseTable;
if ((options & RuleOptions.CaptureClosures) != RuleOptions.None)
{
res = res.Concat(ClosureRuleTable.Instance);
}
if ((options & RuleOptions.CSharpDynamic) != RuleOptions.None)
{
res = res.Concat(CSharpDynamicRuleTable.Instance);
}
if ((options & RuleOptions.StatementTrees) != RuleOptions.None)
{
res = res.Concat(StatementTreeRuleTable.Instance);
}
if ((options & RuleOptions.ReadOnly) != RuleOptions.None)
{
res = res.AsReadOnly();
}
else
{
res = res.Extend();
}
return(res);
}
/// <summary>
/// Gets a rule table with the specified configuration optiosn.
/// </summary>
/// <param name="options">Configuration options for the resulting rule table.</param>
/// <returns>Rule table with the specified configuration options.</returns>
public static RuleTableBase <object, Json.Expression, ExpressionJsonSerializationContext> Get(RuleOptions options)
{
return(CreateRuleTable(options));
}
public AdvancedHighlightRule(XElement rule)
{
Expression = rule.Element("Expression").Value.Trim();
HighlightExpressionIndex = int.Parse(rule.Element("HighlightExpressionIndex").Value.Trim());
Options = new RuleOptions(rule);
}