Universal Variability Language

One common language for variability models.

UVL is a community-driven, textual language for feature models. It grew out of the MODEVAR initiative to let researchers and tools exchange variability models without translation headaches.

Try it in the browser Explore the ecosystem View on GitHub

Readable & versionable. Plain text with indentation, made for diffs and code review.
Built for exchange. One format understood by Flamapy, FeatureIDE, TraVarT, UVLHub and dozens more.
Extensible by levels. Start Boolean, opt into arithmetic and typed features only when needed.
Thriving ecosystem. Editors, solvers, configurators, datasets and AI assistants, all speaking UVL.

sandwich.uvl

features
    Sandwich
        mandatory
            Bread
        optional
            Cheese
            Sauce
                alternative
                    Ketchup
                    Mustard

constraints
    Ketchup => Cheese

mandatory optional alternative Ketchup ⇒ Cheese

JSS Best Paper Award 2025 · Journal of Systems and Software, Regular Track

University of Seville
Johannes Kepler University Linz
TU Braunschweig
Karlsruhe Institute of Technology
University of Siegen
University of Málaga

Language

UVL at a glance

A feature model is a tree. Indentation gives the hierarchy, keywords give the relationship between a parent and its children, and constraints cover everything the tree cannot express.

mandatory

The child must be selected whenever its parent is.

optional

The child may be selected if its parent is.

or

At least one child is selected with the parent.

alternative

Exactly one child is selected with the parent.

constraints

Cross-tree propositional formulas over features, such as A => B.

Language levels

Tools do not need to support everything. UVL is split into stacked levels: a model declares the extensions it uses with include, and tools can convert models down to the level they understand.

Boolean level

features
    Sandwich
        mandatory
            Bread
        optional
            Cheese
            Sauce
                alternative
                    Ketchup
                    Mustard

constraints
    Ketchup => Cheese

Arithmetic level

include
    Boolean.group-cardinality
    Arithmetic.aggregate-function
    Arithmetic.feature-cardinality

features
    Sandwich
        mandatory
            Bread {Calories 100, Sugar 20}
        optional
            Cheese
                [0..2]  // group cardinality
                    Cheddar {Calories 60}
                    Gouda {Calories 50}
                    Goat {Calories 35}
            Sauce
                or
                    Ketchup {Calories 40, Sugar 35}
                    Mustard {Calories 25, Sugar 5}
            Pickle cardinality [1..3]  // feature cardinality

constraints
    Ketchup => Cheese
    Bread.Sugar + Ketchup.Sugar + Mustard.Sugar < 60
    sum(Calories) < 160  // attribute aggregate

Type level

include
    Type.string-constraints
    Type.numeric-constraints

features
    Sandwich
        mandatory
            Bread
            String Name        // typed features
            Integer Slices
        optional
            Cheese
            Sauce
                alternative
                    Ketchup
                    Mustard

constraints
    Ketchup => Cheese
    len(Name) <= 20             // string constraint
    Slices >= 2

Composing models with imports

Large models can be split into submodels. A composing model imports them under an alias and references their features anywhere in the tree or in constraints.

submodels/Sauces.uvl

// submodels/Sauces.uvl
features
    Type
        alternative
            Ketchup
            Mustard

sandwich.uvl

imports
    submodels.Sauces as Sauce

features
    Sandwich
        mandatory
            Bread
        optional
            Cheese
            Sauce.Type

constraints
    Sauce.Ketchup => Cheese

Full grammar Submodel docs SPLC'23 tutorial Example models

Ecosystem

A whole ecosystem speaks UVL

Editors, analyzers, configurators, converters, datasets and AI assistants from research groups and companies across Europe and beyond. Write a model once in UVL and take it anywhere.

65+tools & artifacts

10areas covered

9run right in your browser

3official parser targets: Java, Python, JS

Start with these

The reference grammar

UVL Parser

UVL community

Official ANTLR grammar for UVL with generated parsers for Java, Python and JavaScript. Every other implementation follows it.

$ pip install uvlparser$ npm install uvl-parser

Code

Automated analysis in Python

Flamapy

University of Seville & partners

Framework for the automated analysis of UVL models with a CLI, a Python facade and pluggable SAT, BDD, SMT and

flamapy-fmflamapy-satflamapy-bddflamapy-z3flamapy-sharpsatflamapy-sddflamapy-dnnfflamapy-configurator

$ pip install flamapy

Website Code Paper

Analyze UVL in your browser

flamapy.IDE

University of Seville

Write, visualize, analyze and configure UVL models online. Flamapy runs entirely client-side through WebAssembly, so there is nothing to install.

Website Code Paper

Open-science model repository

UVLHub

University of Seville & partners

Publish, search and analyze UVL datasets. Every dataset gets a Zenodo DOI and can be analyzed with Flamapy on the spot.

Website Code Paper

The feature-oriented IDE

FeatureIDE

Ulm · Braunschweig · Magdeburg · Paderborn

Eclipse-based IDE for feature-oriented software development that reads, writes and graphically edits UVL feature models.

Website Code Paper

Transform between notations

TraVarT

JKU Linz & KIT

Plugin-based framework that transforms between variability modelling notations, using UVL as the pivot, with one-way and round-trip modes.

Code Paper

Try online

Nothing to install. Open a browser and start modelling.

flamapy.IDE

University of Seville

Browser IDE to write, visualize, analyze and configure UVL models with Flamapy compiled to WebAssembly.

Web Website Code

UVL Studio

Univ. Rennes / Inria

Dependency-free browser workbench with live well-formedness checks, a FODA diagram and SAT-based interactive configuration.

Web Website Code

Flamapy online demos

University of Seville

Run Flamapy operations on UVL in the browser, plus ready-made Google Colab notebooks.

Web Website

VariaBlens

University of A Coruña

Import models from UVLHub, edit them in Monaco and chat with an AI assistant that runs Flamapy analyses.

Web Website Code

FM Fact Label

University of Málaga

Characterizes a UVL model with ~46 metrics and renders an interactive, exportable "nutrition-style" fact label.

$ pip install fmfactlabel

Web · Python Website Code Paper

UVL Playground

currently offline

University of Ulm

Monaco-based UVL editor connected to the UVLS language server.

Web Website Code

Edit & IDEs

Editors, language servers and diagram tools.

UVLS

UVL community

Language server for UVL with completion, diagnostics, go-to-definition, Z3-based semantic checks and a configuration editor.

Rust Website Code Paper

UVLS for VS Code

UVL community

VS Code extension bundling UVLS for highlighting, completion, error checking and configuration editing.

VS Code Website

Flama for VS Code

University of Seville

Run Flamapy analysis operations on UVL files directly inside VS Code.

VS Code Website Code

FeatureIDE

Ulm · Braunschweig · Magdeburg · Paderborn

Eclipse IDE that reads, writes and graphically edits UVL feature models.

Java Website Code

UVL GLSP Diagram Editor

Community

VS Code extension with graphical diagram editing of UVL models on Eclipse GLSP.

VS Code Website Code

FeatureDraw

University of Seville

Drag-and-drop feature model editor with UVL import/export and SVG/PDF export ready for papers.

Web Code

uvlhighlight

UVL community

LaTeX package to typeset UVL listings with syntax highlighting in papers and slides.

LaTeX Code

Analyze & reason

Solvers, counting, sampling and dependency analysis.

Flamapy

University of Seville & partners

Python framework for automated analysis of UVL with PySAT, BDD, Z3, ApproxMC, SDD and d-DNNF backends.

$ pip install flamapy

Python Website Code

Flamapy REST

University of Seville

REST API with Swagger docs exposing every Flamapy operation over HTTP, as a hosted service, Docker image and PyPI package.

$ pip install flamapy-rest

Python Website Code

FeatJAR

FeatureIDE team

Modular Java libraries succeeding the FeatureIDE core, with UVL formats feeding SAT and knowledge-compilation analyses.

Java Code

UVL-SMT

University of Ulm

JavaSMT/Z3 reasoning library for UVL models, including arithmetic and typed constraints.

Java Code

CFM Toolbox

KIT

Python toolbox and CLI for cardinality-based feature models with UVL import/export and a graphical editor plugin.

$ pip install cfmtoolbox

Python Website Code

CFMTools

Community

Rust framework for cardinality-based feature models covering UVL import, transformation, analysis and uniform sampling.

Rust Code

Strong4VM

UNED

Computes graphs of strong transitive dependencies and conflicts between features from UVL or DIMACS models.

C++ Code Paper

UVLParser (GPU)

Community

C++/CUDA tool that simplifies UVL or DIMACS models and detects invalid feature interactions, with optional GPU acceleration.

C++ · CUDA Code

Configure & derive

From a valid configuration to a running product.

flamapy-configurator

University of Seville

Turns a UVL model into a guided, question-by-question configurator with real-time consistency checking.

$ pip install flamapy-configurator

Python Code

SPLENT

University of Seville

Software product line toolkit for Python that turns a UVL feature model into a validated, containerized running product.

$ pip install splent-cli

Python Website Code

UVengine

University of Málaga

Variability-resolution engine that derives products from UVL configurations and Jinja templates across text artifacts.

Python Website Code Paper

UVL Rust variant generation

Community

Procedural macros that conditionally compile Rust code from UVL configurations exported by UVLS.

Rust Code

UVL2Pat

Community

Template-based generator turning UVL configurations into Swift implementations of design patterns.

Swift · Python Website Code

Transform & interoperate

Move models between UVL, solvers and other notations.

TraVarT

JKU Linz & KIT

Transforms between variability notations with UVL as the pivot metamodel, including round-trip modes and benchmarks.

Java Code

TraVarT Kconfig plugin

JKU Linz & KIT

Round-trip transformation between Linux-style Kconfig and UVL.

Java Code

TraVarT FeatureIDE plugin

JKU Linz & KIT

Converts FeatureIDE XML feature models to UVL and back.

Java Code

torte

Paderborn University

Docker pipeline that extracts feature models from Kconfig systems like Linux and converts them between FeatureIDE, UVL and DIMACS.

Shell · Java Website Code Paper

uvllang

University of Ulm

Converts UVL to DIMACS CNF or SMT-LIB 2 and recovers UVL from them, with native Zig binaries.

$ pip install uvllang

Python · Zig Code

uvl2dimacs

UNED

C++ library and CLI converting UVL to DIMACS CNF with straightforward or Tseitin encodings.

C++ Code

Pseudo-Boolean UVL encoder

Community

Encodes UVL feature models as pseudo-Boolean constraints on top of java-fm-metamodel.

Java Code

Nemo2

University of Málaga

Bit-blasts numerical feature models into Boolean UVL, propositional formulas or CNF.

Python Code

UVL Feature-Model Merger

Community

Consistency-based merging of regional UVL feature models into one semantics-preserving model.

Java Code

Varflix

JKU Linz

Variability mining with a GUI that builds UVL models from sets of input variants.

Java Code

Libraries

Build UVL support into your own tool.

uvl-parser

UVL community

Reference ANTLR grammar and parsers for Java, Python and JavaScript (the JS target is the UVL.js work).

$ pip install uvlparser

Java · Python · JS Code

java-fm-metamodel

UVL community

Parse UVL into an object model, edit features and constraints, convert between language levels and write UVL back.

Java Code

flamapy-fw

University of Seville

Plugin-based core of Flamapy with base classes for metamodels, operations and transformations.

$ pip install flamapy-fw

Python Website Code

flamapy.js

Univ. A Coruña & Seville

Brings Flamapy UVL analysis to any web or Node app via Pyodide/WebAssembly.

$ npm install @lbdudc/flamapy.js

JavaScript Code Paper

tree-sitter-uvl

UVL community

Tree-sitter grammar for fast, error-tolerant UVL parsing and highlighting.

C · JS Code

Behavioral Feature Model Toolkit

Community

Java toolkit for behavioral feature models with UVL and VIBeS interoperability.

Java Code

Models & datasets

Real-world models, benchmarks and generators.

UVLHub

University of Seville & partners

Open-science repository of UVL datasets with Zenodo DOIs and built-in Flamapy analysis.

Web Website Code Paper

uvl-models

UVL community

Curated real-world variability models converted to UVL, organized by origin and domain. Pull requests welcome.

UVL Code

Feature-Model Benchmark

University of Ulm & partners

2,518 real-world feature models from the literature, exportable as UVL or DIMACS.

UVL · DIMACS Code Paper

UVL Generator

University of Ulm

Generates random or property-controlled UVL models covering the full language, with optional SMT checks.

Java Code Paper

Restaurant-domain dataset

University of Málaga

53 real-world UVL models from restaurant menus that exercise UVL's full expressiveness.

UVL Code Paper

bdds4fms

Univ. Málaga & UNED

Dataset and scripts building binary decision diagrams for the UVL models of the feature-model benchmark.

Python Code Paper

Flamapy solver benchmark

University of Seville

Reproducible benchmark of Flamapy's PySAT, BDD and Z3 backends over 1,611 UVL models from UVLHub.

Python Code Paper

Quality & semantics

Validate datasets and pin down what UVL means.

UVL Sentinel

University of Seville

Scans large UVL datasets, reports syntax errors and auto-fixes common mistakes with correction patterns.

Python Website Code

mech-uvl

Community

Mechanized Dafny semantics of UVL with a CLI that checks well-formedness and types and infers language levels.

Dafny · C# Code

AI & LLMs

Let assistants read, generate and analyze UVL.

flamapy-mcp

Univ. Seville & A Coruña

Official MCP server that lets LLM assistants validate and analyze UVL models with Flamapy.

$ uvx flamapy-mcp

Python Code

UVL Analyzer MCP

University of A Coruña

Node MCP server exposing atomic sets, core and dead features and configuration counts to AI assistants.

$ npm install @lbdudc/mcp-uvl-analyzer

JavaScript Code

VariaBlens

University of A Coruña

Web workbench that combines a UVL editor with an AI chat running Flamapy analyses.

Web Website Code

GCD for UVL

Community

Generates UVL from natural language with local LLMs using grammar-constrained decoding over the official grammar.

Python Code

SLM UVL fine-tuning

Community

LoRA fine-tuning pipeline so small language models produce valid UVL from natural-language descriptions.

Python Code

llms4uvl

University of Málaga

Builds UVL knowledge bases and evaluates LLM-generated UVL models against ground truth.

Python Code

UVL Learner

Community

Constraint-acquisition research code that learns UVL constraints and tree structure from a SAT oracle.

Python Code

UVL in the wild

Domains already modelled with UVL.

Kubernetes feature model

University of Málaga

Synthesizes a UVL model of Kubernetes configuration options from its OpenAPI schemas.

Python Code Paper

cargo-feature-analyzer

Community

Synthesizes UVL feature models of Rust crates from Cargo.toml and crates.io data.

Rust Code

jMetal Variability

University of Málaga

Configures jMetal multi-objective metaheuristics from UVL feature models without writing code.

Java Code

amlops

IMT · LIRMM

Variability-aware low-code DSL for MLOps pipelines that exports its feature model in UVL.

Python Website Code

Drone propeller SPL

University of Seville

UVL model of fixed-pitch drone propellers with a physical-feasibility validator and design generator.

Web Website Paper

YOLOv11 UVL configurator

University of Seville

Models YOLOv11 face-detection settings in UVL and turns valid configurations into training parameters.

Python Code

SPL for visualization design

University of Seville

Generates best-practice data visualizations from UVL models of the visualization design process.

Python · LaTeX Code Paper

Does your tool read or write UVL? Get it listed here and reach the whole community.

Add your tool

Repositories of the Universal-Variability-Language organization on GitHub. Stars and activity are live.

Language & tooling

Repository	Purpose	Language	Stars	Last push
uvl-parser	Grammar definition and reference parsers.	ANTLR	–	–
java-fm-metamodel	Java feature-model API on top of the parser.	Java	–	–
uvl-lsp	UVLS language server and VS Code client.	Rust	–	–
uvlhighlight	LaTeX syntax highlighting for UVL.	TeX	–	–
uvl-models	Public feature models in UVL.	UVL	–	–
UVLEP	UVL Enhancement Proposals and design discussions.	Markdown	–	–
Universal-Variability-Language.github.io	Source of the official website.	Markdown	–	–

Tutorials & evaluations

Repository	Purpose	Stars	Last push
tutorial-splc-2023	Material for the UVL tutorial at SPLC'23.	–	–
uvl-tutorials-material	Reusable material for UVL tutorials.	–	–
uvl-evaluation-splc21	Evaluation project of the SPLC'21 UVL paper.	–	–
bnf-uvl-parser deprecated	Original BNF/Clojure parser.	–	–

MODEVAR

Where UVL is designed, together

UVL was born at MODEVAR, the International Workshop on Languages for Modelling Variability. Since 2019 it has gathered researchers, tool builders and companies to agree on a common language, and it is still where UVL evolves.

Visit MODEVAR Full history

10numbered editions

2019first workshop, Paris

3host conferences (SPLC, VaMoS, VARIABILITY) plus online editions

Latest · 29 Sep 2026

MODEVAR@VARIABILITY 2026

Limassol, Cyprus. The first MODEVAR at VARIABILITY, the new conference that merges SPLC, VaMoS and ICSR.

Introduction to Feature Modeling and UVL
Overview of Existing UVL Applications
Order Matters: An UVL Extension for Configuration Sequences
Varflix: A Tool for Semi-Automatic Variability Mining
Towards UVL-based variability modelling of drone propellers
UVL-Supported Configuration for YOLOv11 Face Detection
SysML v2 à la Carte: Feature-Based Product Configuration with UVL
Configurable Scheduling Problems: Modeling and Anomaly Detection
VariabLens: LLM-Enhanced Interactive Feature Model Analysis and Comparison
A Unified Visual Representation of UVL Models in Scientific Literature: The uvlhighlight Package
Mech-uvl: A Mechanized Semantic Toolkit for the Universal Variability Language

Program Slides

29 Apr 2026

MODEVAR Online Edition 2026

A free, open session with tool demos and industry use cases, where the UVLEP process was launched.

UVL and UVLHub: enhancements and new applications · University of Seville
FlamapyIDE 2.0: What's Next for Client-Side AAFM · University of Seville
Modular Software Product Lines with UVL · University of A Coruña
UVL feature model configuration selection with simulated annealing: The FMCooler tool · Tecnalia
UVL-Based Prompt Variability for AI Agents in UX design processes · University of Seville
SENSOLIVE: UVL for Variability Management in Deficit Irrigation of Olive Groves · University of Seville
uvllang: Towards a bidirectional UVL Parser · DHBW Heidenheim
Variability in Cyber Physical Production Systems · JKU Linz
What UVL Made Us Invent: An Industrial Feature Model Toolchain and Its Unresolved Tensions · Trusted Shops
Order Matters: Configuration Sequences in Feature Models · TU Wien

Program

Project

Where UVL stands today

UVL is actively maintained by a multi-university team, and its evolution is now driven by public enhancement proposals.

0.5.1latest uvl-parser release

65tools in the ecosystem

11public repositories

6core institutions

Milestones

2019
MODEVAR kick-off
The first MODEVAR workshop (SPLC'19, Paris) sets the goal of a common feature-modelling language. Details
2020
UVL is born
The UVL proposal is presented and named at MODEVAR@SPLC'20, together with the first design of Flamapy. Details
2021
Reference paper & first tools
"Yet another textual variability language?" at SPLC'21. UVL lands in FeatureIDE and a first model repository appears. Paper
2023
Language levels & UVLS
Language levels, conversion strategies and the UVLS language server at SPLC'23, plus a UVL tutorial. Paper
2024
UVLHub & UVL Sentinel
An open-science repository for UVL models is published in JSS, and UVL Sentinel validates whole datasets. Paper
2025
JSS paper & Best Paper Award
The reference UVL paper receives the JSS Best Paper Award. UVL.js and flamapy.IDE are presented at VaMoS'25. Paper
2026
Community process & VARIABILITY
MODEVAR Online launches the UVLEP process (April), uvl-parser 0.5 ships, and MODEVAR joins VARIABILITY'26 in Limassol (September). Details

How to cite

UVL: Feature modelling with the Universal Variability Language

David Benavides, Chico Sundermann, Kevin Feichtinger, José A. Galindo, Rick Rabiser, Thomas Thüm. Journal of Systems and Software, vol. 225, 112326, 2025.

★ JSS Best Paper Award 2025 · Regular Track

doi:10.1016/j.jss.2024.112326

BibTeX

@article{Benavides2025UVL,
  title     = {UVL: Feature modelling with the Universal Variability Language},
  author    = {Benavides, David and Sundermann, Chico and Feichtinger, Kevin and
               Galindo, Jos{\'e} A. and Rabiser, Rick and Th{\"u}m, Thomas},
  journal   = {Journal of Systems and Software},
  volume    = {225},
  pages     = {112326},
  year      = {2025},
  publisher = {Elsevier},
  doi       = {10.1016/j.jss.2024.112326}
}

Publications

2025
UVL web-based editing and analysis with flamapy.ide
Francisco Sebastian Benitez, José A. Galindo, David Romero-Organvidez, David Benavides · VaMoS '25
2025
UVL.js: Experiences on using UVL in the JavaScript Ecosystem
Victor Lamas, Maria-Isabel Limaylla-Lunarejo, Miguel R. Luaces, David Romero-Organvidez, José A. Galindo, David Benavides · VaMoS '25
2024
On the Challenges of Transforming UVL to IVML
Prankur Agarwal, Kevin Feichtinger, Klaus Schmid, Holger Eichelberger, Rick Rabiser · MODEVAR@VaMoS '24
2024
Collecting Feature Models from the Literature
Chico Sundermann, Vincenzo Francesco Brancaccio, Elias Kuiter, Sebastian Krieter, Tobias Heß, Thomas Thüm · SPLC '24
2024
UVLHub: A feature model data repository using UVL and open science principles
David Romero-Organvidez, José A. Galindo, Chico Sundermann, Jose-Miguel Horcas, David Benavides · Journal of Systems and Software
2024
Generating Feature Models with UVL's Full Expressiveness
Chico Sundermann, Tobias Heß, Rahel Sundermann, Elias Kuiter, Sebastian Krieter, Thomas Thüm · MODEVAR '24
2023
FLAMA: A collaborative effort to build a new framework for the automated analysis of feature models
José A. Galindo, Jose-Miguel Horcas, Alexander Felfernig, David Fernandez-Amoros, David Benavides · SPLC '23 Tool Track
2023
UVLS: A Language Server Protocol For UVL
Jacob Loth, Chico Sundermann, Tobias Schrull, Thilo Brugger, Felix Rieg, Thomas Thüm · SPLC '23 Tool Track
2023
UVLParser: Extending UVL with Language Levels and Conversion Strategies
Chico Sundermann, Stefan Vill, Thomas Thüm, Kevin Feichtinger, Prankur Agarwal, Rick Rabiser, José A. Galindo, David Benavides · SPLC '23 Tool Track
2022
Bridging the gap between academia and industry: transforming the universal variability language to pure::variants and back
Dario Romano, Kevin Feichtinger, Danilo Beuche, Uwe Ryssel, Rick Rabiser · MODEVAR@SPLC '22
2022
FM fact label: a configurable and interactive visualization of feature model characterizations
Jose M. Horcas, José A. Galindo, Mónica Pinto, Lidia Fuentes, David Benavides · SPLC '22
2021
A first prototype of a new repository for feature model exchange and knowledge sharing
David Romero, José A. Galindo, Jose-Miguel Horcas, David Benavides · SPLC '21
2021
Integration of UVL in FeatureIDE
Chico Sundermann, Tobias Heß, Dominik Engelhardt, Rahel Arens, Johannes Herschel, Kevin Jedelhauser, Benedikt Jutz, Sebastian Krieter, Ina Schaefer · MODEVAR@SPLC '21
2021
TRAVART: An Approach for Transforming Variability Models
Kevin Feichtinger, Johann Stöbich, Dario Romano, Rick Rabiser · VaMoS '21
2021
Yet another textual variability language? A community effort towards a unified language
Chico Sundermann, Kevin Feichtinger, Dominik Engelhardt, Rick Rabiser, Thomas Thüm · SPLC '21
2020
A Python framework for the automated analysis of feature models: A first step to integrate community efforts
José A. Galindo, David Benavides · MODEVAR@SPLC '20
2019
On Language Levels for Feature Modeling Notations
Thomas Thüm, Christoph Seidl, Ina Schaefer · MODEVAR@SPLC '19
2019
Usage Scenarios for a Common Feature Modeling Language
Thorsten Berger, Philippe Collet · MODEVAR@SPLC '19
2019
Textual Variability Modeling Languages: An Overview and Considerations
Maurice H. ter Beek, Klaus Schmid, Holger Eichelberger · MODEVAR@SPLC '19

Missing a paper on UVL? Let us know.

Community

The people behind UVL

UVL is maintained by researchers from six institutions across Europe, together with a growing list of contributors.

University of Seville · Spain

Johannes Kepler University Linz · Austria

TU Braunschweig · Germany

Karlsruhe Institute of Technology · Germany

Kevin Feichtinger

University of Siegen · Germany

University of Málaga · Spain

José Miguel Horcas

Further and former contributors: Dominik Engelhardt (TU Braunschweig), Dario Romano (JKU Linz), Stefan Vill (University of Ulm), Jacob Loth (University of Ulm), Prankur Agarwal (JKU Linz), David Romero-Organvidez (University of Seville). Should you be on this list? Tell us.

How to contribute

Language

The UVLEP process

1Idea
Open a thread in Discussions.
2Draft
Fill in the template and open a pull request.
3Review
Maintainers and community discuss and request changes.
4Decision
Accepted, rejected or deferred once there is consensus.
5Implementation
Accepted proposals land in the grammar and tools.

Contact

Get in touch

Questions about UVL, ideas for collaboration or interest in using it in industry? Write to the core team.

Technical question?

Ask in public so the whole community benefits from the answer.

GitHub Discussions →
Parser issues →