Conllu 1.0.1

CoNLL-U Parser in .NET Core

This repository contains a lightweight, well-tested CoNLL-U parser written in C# .NET Core and parses according to the CoNLL-U format as specified by Universal Dependencies.

Quick Start

CoNLL-U is available as a NuGet package. Once installed, you can start as follows:

var filePath = ...
var sentences = ConlluParser.ParseFile(filePath);

Each Sentence contains a list of Token which contain all the information as specified in the CoNLL-U format. Below is a short overview of some of the fields that are available in the Token class:

   public class Token
   {
        // CoNLL-U Properties
        int Id;
        string Form;
        string Lemma;
        string Upos;
        string Xpos;
        Dictionary<string, string> Feats;
        int? Head;
        string DepRel;
        Dictionary<TokenIdentifier, string> Deps;
        string Misc;
        
        // Other properties
        TokenIdentifier Identifier;
        string RawLine;
        bool IsMultiwordToken;
        bool IsEmptyNode;
   }

In addition, there is a TokenIdentifier class which wraps the different possibilities for word ID such as multiword tokens or empty nodes.

To-do

Below is a list of items that are still planned for the package. Feel free to open an issue or pull request for any other additional functionalities and/or bugfixes.

• Support empty nodes
• Add serialization support to generate .conllu files
• Add tree parsing helper functions

License

Copyright (c) 2021 Arthur Hemmer

Distributed under the MIT License (MIT).