public bool TryParse(string source, ref int index, [NotNullWhen(true)] ref JsonPath?path, [NotNullWhen(false)] out string?errorMessage)
{
if (path == null)
{
errorMessage = "Start token not found.";
return(false);
}
index += 2;
if (!JsonPathExpressionParser.TryParse <bool, JsonValue>(source, ref index, out var expression, out errorMessage))
{
return(false);
}
if (index >= source.Length)
{
errorMessage = "Unexpected end of input.";
return(false);
}
if (source[index] != ']')
{
errorMessage = "Expected ']'";
return(false);
}
index++;
path.Operators.Add(new ArrayOperator(new FilterExpressionQuery(expression)));
return(true);
}
public string TryParse(string source, ref int index, ref JsonPath path)
{
index += 2;
Expression <bool, JsonValue> expression;
var error = JsonPathExpressionParser.Parse(source, ref index, out expression);
if (error != null)
{
return(error);
}
if (index >= source.Length)
{
return("Unexpected end of input.");
}
if (source[index] != ']')
{
return("Expected ']'");
}
index++;
path.Operators.Add(new ArrayOperator(new FilterExpressionQuery(expression)));
return(null);
}