Feelin NPM | npm.io

feelin

A DMN FEEL parser and interpreter written in JavaScript. :arrow_right: Try it out.

Usage

import {
  unaryTest,
  evaluate
} from 'feelin';

unaryTest('1', { '?': 1 }); // true
unaryTest('[1..end]', { '?': 1, end: 10 }); // true

evaluate("Mike's daughter.name", {
  'Mike\'s daughter.name': 'Lisa'
}); // "Lisa"

evaluate('for a in [1, 2, 3] return a * 2'); // [ 2, 4, 6 ]

evaluate('every rate in rates() satisfies rate < 10', {
  rates() {
    return [ 10, 20 ];
  }
}); // false

Features

Recognizes full FEEL grammar
Context sensitive (incl. names with spaces)
Recovers on errors
Temporal types and operations
Built-in FEEL functions
Full DMN TCK compliance

Build and Run

# build the library and run all tests
npm run all

# spin up for local development
npm run dev

# execute FEEL tests in DMN TCK
npm run tck

lezer-feel - FEEL language definition for the Lezer parser system
feel-playground - Interactive playground to learn the FEEL language

License

MIT

@lezer/lr lezer-feel luxon

dmn-evaluater @everything-registry/sub-chunk-1657 @bpmn-io/form-js-viewer jsdmn @amplicode/addon-camunda @caredocs/form-js-viewer @digipair/skill-temporal @hieuquang2212/form @willyterry/feelers @wemake4u/form-player-se @wemake4u/sirioform @xonar/form-js-viewer @zerozillatechnologies/form-js-viewer bpmn-server bpmn-expression-language dmn-evaluator feelers fixed_form_builder

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feelin v4.3.0

feelin

Usage

Features

Build and Run

Related

License