Arithmetica.Tokenization.Rewriting.WordRewriter.RewriteFunctions C# (CSharp) Method

        private TokenStream RewriteFunctions(TokenStream tokens)
        {
            List<Token> result = new List<Token>();
            foreach (Token token in tokens)
            {
                if (token.Type == TokenType.Word)
                {
                    string name = (string)token.Value;
                    MathExpressionFunction function = MathExpressionFunctionFactory.Default.GetFunction(name);
                    if (function != null)
                    {
                        result.Add(new Token(TokenType.Function, function.Name));
                        continue;
                    }
                }
                result.Add(token);
            }
            return new TokenStream(result, tokens.Notation);
        }