Annotated Terms, or ATerms, are a way to represent a tree of terms with additional information. They are used, for example, in the Spoofax Language Workbench. This library allows you to work with them in .NET.
Easiest is to install the NuGet package.
PM> Install-Package Yargon.ATermsCopyright 2016, 2017 - Daniel Pelsmaeker
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.