--- /dev/null
+```javascript
+var parse = require('spdx-expression-parse')
+var assert = require('assert')
+
+var firstAST = {
+ left: { license: 'LGPL-2.1' },
+ conjunction: 'or',
+ right: {
+ left: { license: 'BSD-3-Clause' },
+ conjunction: 'and',
+ right: { license: 'MIT' } } }
+
+assert.deepEqual(
+ parse('(LGPL-2.1 OR BSD-3-Clause AND MIT)'),
+ firstAST)
+
+var secondAST = {
+ left: { license: 'MIT' },
+ conjunction: 'and',
+ right: {
+ left: {
+ license: 'LGPL-2.1',
+ plus: true },
+ conjunction: 'and',
+ right: { license: 'BSD-3-Clause' } } }
+
+assert.deepEqual(
+ parse('(MIT AND (LGPL-2.1+ AND BSD-3-Clause))'),
+ secondAST)
+
+// We handle all the bare SPDX license and exception ids as well.
+require('spdx-license-ids').forEach(function(id) {
+ assert.deepEqual(
+ parse(id),
+ { license: id })
+ require('spdx-exceptions').forEach(function(e) {
+ assert.deepEqual(
+ parse(id + ' WITH ' + e),
+ { license: id, exception: e }) }) })
+```
+
+---
+
+[The Software Package Data Exchange (SPDX) specification](http://spdx.org) is the work of the [Linux Foundation](http://www.linuxfoundation.org) and its contributors, and is licensed under the terms of [the Creative Commons Attribution License 3.0 Unported (SPDX: "CC-BY-3.0")](http://spdx.org/licenses/CC-BY-3.0). "SPDX" is a United States federally registered trademark of the Linux Foundation.