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Authors: Aäron Munsters ; Angel Luis Scull Pupo and Jens Nicolay

Affiliation: Software Languages Lab, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, Belgium

Keyword(s): Conflict-free Replicated Data Types, Software Evolution, Abstract Syntax Trees, Distributed Collaboration.

Abstract: Remote real-time collaborative text editing enables collaboration of distributed parties which improves an agile workflow, team member availability and productivity. Collaborative source-code editors are often implemented as a variant of regular collaborative text editing with source code highlighting. Such approaches do not use the structural program information to accurately merge concurrent changes on the same portions of code for temporal network partitions. Therefore, these approaches fail to merge concurrent structural changes to the program such as a concurrent move and edit operation. In this paper we propose an approach in which the editor replicates not the program text but the program tree that corresponds with the program text. Propagating source code changes as tree operations enables resolving concurrent tree changes with higher accuracy. We evaluate our approach by reproducing a use case in which we concurrently change so urce code on existing tools and our approach. We show that existing tools break the lexical structure and come up with an incorrect program while our approach can distinctly apply the changes preserving the program structure. (More)

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Paper citation in several formats:
Munsters, A.; Pupo, A. and Nicolay, J. (2022). COAST: A Conflict-free Replicated Abstract Syntax Tree. In Proceedings of the 17th International Conference on Software Technologies - ICSOFT; ISBN 978-989-758-588-3; ISSN 2184-2833, SciTePress, pages 187-196. DOI: 10.5220/0011278800003266

@conference{icsoft22,
author={Aäron Munsters. and Angel Luis Scull Pupo. and Jens Nicolay.},
title={COAST: A Conflict-free Replicated Abstract Syntax Tree},
booktitle={Proceedings of the 17th International Conference on Software Technologies - ICSOFT},
year={2022},
pages={187-196},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011278800003266},
isbn={978-989-758-588-3},
issn={2184-2833},
}

TY - CONF

JO - Proceedings of the 17th International Conference on Software Technologies - ICSOFT
TI - COAST: A Conflict-free Replicated Abstract Syntax Tree
SN - 978-989-758-588-3
IS - 2184-2833
AU - Munsters, A.
AU - Pupo, A.
AU - Nicolay, J.
PY - 2022
SP - 187
EP - 196
DO - 10.5220/0011278800003266
PB - SciTePress

- Science and Technology Publications, Lda.
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