Trevas JS

Trevas JS is a JavaScript engine for the Validation and Transformation Language. It is part of the Trevas family, together with the Trevas Java engine.

The documentation can be found in the docs folder and browsed online.

A Storybook is also available online.

Packages

Trevas JS is a Monorepo with the following modules.

@inseefr/trevas

The trevas package is the VTL engine itself, which exposes the interpret function root (named export).

@inseefr/vtl-2.0-antlr-tools

This package is generated by Antlr from the VTL 2.0 EBNF grammar; VtlLexer, VtlParser, VtlListener and VtlVisitor are exposed at root (named export).

Getting started

Use Trevas JS

To use Trevas JS in your JavaScript project, just run:

yarn add @inseefr/trevas

or

npm install @inseefr/trevas

Build Trevas JS

If you prefer to build Trevas JS locally, first clone the Github repository:

git clone https://github.com/InseeFr/Trevas-JS.git
cd Trevas-JS

Install the dependencies (yarn is required because of workspaces) and build the packages:

yarn
yarn build

Tests

Run once:

yarn test

Run with hot reloading:

yarn test-watch

Storybook

Run storybook:

yarn start-storybook

Archived packages

@inseefr/vtl-tools

This library is deprecated and no longer maintained. The last version is 0.1.15.

@inseefr/vtl-2.1-engine

This library is deprecated and no longer maintained. The last version is 0.1.9.

@inseefr/vtl-2.1-antlr-tools

This library is deprecated and no longer maintained. The last version is 1.0.0-rc2.