Ejemplo n.º 1
0
        private void ParseKeyContent(HoconValue value, string currentPath)
        {
            try
            {
                var last = currentPath.Split('.').Last();
                PushDiagnostics(string.Format("{0} = ", last));
                while (!_reader.EoF)
                {
                    Token t = _reader.PullNext();
                    switch (t.Type)
                    {
                    case TokenType.Dot:
                        ParseObject(value, false, currentPath);
                        return;

                    case TokenType.Assign:

                        if (!value.IsObject())
                        {
                            //if not an object, then replace the value.
                            //if object. value should be merged
                            value.Clear();
                        }
                        ParseValue(value, currentPath);
                        return;

                    case TokenType.ObjectStart:
                        ParseObject(value, true, currentPath);
                        return;
                    }
                }
            }
            finally
            {
                PopDiagnostics();
            }
        }
Ejemplo n.º 2
0
        private void ParseObject(HoconValue owner, bool root, string currentPath)
        {
            try
            {
                PushDiagnostics("{");

                if (owner.IsObject())
                {
                    //the value of this KVP is already an object
                }
                else
                {
                    //the value of this KVP is not an object, thus, we should add a new
                    owner.NewValue(new HoconObject());
                }

                HoconObject currentObject = owner.GetObject();

                while (!_reader.EoF)
                {
                    Token t = _reader.PullNext();
                    switch (t.Type)
                    {
                    case TokenType.Include:
                        var included      = _includeCallback(t.Value);
                        var substitutions = included.Substitutions;
                        foreach (var substitution in substitutions)
                        {
                            //fixup the substitution, add the current path as a prefix to the substitution path
                            substitution.Path = currentPath + "." + substitution.Path;
                        }
                        _substitutions.AddRange(substitutions);
                        var otherObj = included.Value.GetObject();
                        owner.GetObject().Merge(otherObj);

                        break;

                    case TokenType.EoF:
                        if (!string.IsNullOrEmpty(currentPath))
                        {
                            throw new HoconParserException(string.Format("Expected end of object but found EoF {0}", GetDiagnosticsStackTrace()));
                        }
                        break;

                    case TokenType.Key:
                        HoconValue value    = currentObject.GetOrCreateKey(t.Value);
                        var        nextPath = currentPath == "" ? t.Value : currentPath + "." + t.Value;
                        ParseKeyContent(value, nextPath);
                        if (!root)
                        {
                            return;
                        }
                        break;

                    case TokenType.ObjectEnd:
                        return;
                    }
                }
            }
            finally
            {
                PopDiagnostics();
            }
        }
Ejemplo n.º 3
0
        /// <summary>
        /// Retrieves the next value token from the tokenizer and appends it
        /// to the supplied element <paramref name="owner"/>.
        /// </summary>
        /// <param name="owner">The element to append the next token.</param>
        /// <exception cref="System.Exception">End of file reached while trying to read a value</exception>
        public void ParseValue(HoconValue owner, string currentPath)
        {
            if (_reader.EoF)
            {
                throw new HoconParserException("End of file reached while trying to read a value");
            }

            _reader.PullWhitespaceAndComments();
            var start = _reader.Index;

            try
            {
                while (_reader.IsValue())
                {
                    Token t = _reader.PullValue();

                    switch (t.Type)
                    {
                    case TokenType.EoF:
                        break;

                    case TokenType.LiteralValue:
                        if (owner.IsObject())
                        {
                            //needed to allow for override objects
                            owner.Clear();
                        }
                        var lit = new HoconLiteral
                        {
                            Value = t.Value
                        };
                        owner.AppendValue(lit);

                        break;

                    case TokenType.ObjectStart:
                        ParseObject(owner, true, currentPath);
                        break;

                    case TokenType.ArrayStart:
                        HoconArray arr = ParseArray(currentPath);
                        owner.AppendValue(arr);
                        break;

                    case TokenType.Substitute:
                        HoconSubstitution sub = ParseSubstitution(t.Value);
                        _substitutions.Add(sub);
                        owner.AppendValue(sub);
                        break;
                    }
                    if (_reader.IsSpaceOrTab())
                    {
                        ParseTrailingWhitespace(owner);
                    }
                }

                IgnoreComma();
            }
            catch (HoconTokenizerException tokenizerException)
            {
                throw new HoconParserException(string.Format("{0}\r{1}", tokenizerException.Message, GetDiagnosticsStackTrace()), tokenizerException);
            }
            finally
            {
                //no value was found, tokenizer is still at the same position
                if (_reader.Index == start)
                {
                    throw new HoconParserException(string.Format("Hocon syntax error {0}\r{1}", _reader.GetHelpTextAtIndex(start), GetDiagnosticsStackTrace()));
                }
            }
        }