Package Exports

spdx

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (spdx) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

spdx.js

SPDX License Expression Syntax parser

Usage

Simple License Expressions

spdx.valid('GPL-2.0'); // => true
spdx.valid('GPL-2.0+'); // => true
spdx.valid('LicenseRef-23'); // => true
spdx.valid('LicenseRef-MIT-Style-1'); // => true

Composite License Expressions

Disjunctive `OR` Operator

spdx.valid('(LGPL-2.1 OR MIT)'); // => true
spdx.valid('(LGPL-2.1 OR MIT OR BSD-3-Clause)'); // => true

Conjunctive `AND` Operator

spdx.valid('(LGPL-2.1 AND MIT)'); // => true
spdx.valid('(LGPL-2.1 AND MIT AND BSD-2-Clause)'); // => true

Exception `WITH` Clause

spdx.valid('(GPL-2.0+ WITH Bison-exception-2.2)'); // => true

Order of Precedence and Parentheses

spdx.valid('(LGPL-2.1 OR BSD-3-Clause AND MIT)'); // => true
spdx.valid('((LGPL-2.1+ OR BSD-3-Clause) AND MIT)'); // => true
spdx.valid('((LGPL-2.1+ OR BSD-3-Clause) AND MIT)'); // => true

Identifier Lists

Array.isArray(spdx.licenses); // => true
spdx.licenses.indexOf('ISC') > -1; // => true
spdx.licenses.indexOf('Apache-1.7') > -1; // => false
spdx.licenses.every(function(element) {
  return typeof element === 'string';
}); // => true

Array.isArray(spdx.exceptions); // => true
spdx.exceptions.indexOf('GCC-exception-3.1') > -1; // => true
spdx.exceptions.every(function(element) {
  return typeof element === 'string';
}); // => true

Version Metadata

typeof spdx.licenseListVersion === 'string'; // => true
typeof spdx.specificationVersion === 'string'; // => true
typeof spdx.version === 'string'; // => true

spdx