update

package/node_modules/spdx-expression-parse/AUTHORS

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+C. Scott Ananian <cscott@cscott.net> (http://cscott.net)
+Kyle E. Mitchell <kyle@kemitchell.com> (https://kemitchell.com)
+Shinnosuke Watanabe <snnskwtnb@gmail.com>
+Antoine Motet <antoine.motet@gmail.com>

package/node_modules/spdx-expression-parse/LICENSE

@@ -0,0 +1,22 @@
+The MIT License
+
+Copyright (c) 2015 Kyle E. Mitchell & other authors listed in AUTHORS
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package/node_modules/spdx-expression-parse/index.js

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+'use strict'
+
+var scan = require('./scan')
+var parse = require('./parse')
+
+module.exports = function (source) {
+  return parse(scan(source))
+}

package/node_modules/spdx-expression-parse/package.json

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+{
+  "name": "spdx-expression-parse",
+  "description": "parse SPDX license expressions",
+  "version": "4.0.0",
+  "author": "Kyle E. Mitchell <kyle@kemitchell.com> (https://kemitchell.com)",
+  "files": [
+    "AUTHORS",
+    "index.js",
+    "parse.js",
+    "scan.js"
+  ],
+  "dependencies": {
+    "spdx-exceptions": "^2.1.0",
+    "spdx-license-ids": "^3.0.0"
+  },
+  "devDependencies": {
+    "defence-cli": "^3.0.1",
+    "replace-require-self": "^1.0.0",
+    "standard": "^14.1.0"
+  },
+  "keywords": [
+    "SPDX",
+    "law",
+    "legal",
+    "license",
+    "metadata",
+    "package",
+    "package.json",
+    "standards"
+  ],
+  "license": "MIT",
+  "repository": "jslicense/spdx-expression-parse.js",
+  "scripts": {
+    "lint": "standard",
+    "test:readme": "defence -i javascript README.md | replace-require-self | node",
+    "test:suite": "node test.js",
+    "test": "npm run test:suite && npm run test:readme"
+  }
+}

package/node_modules/spdx-expression-parse/parse.js

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+'use strict'
+
+// The ABNF grammar in the spec is totally ambiguous.
+//
+// This parser follows the operator precedence defined in the
+// `Order of Precedence and Parentheses` section.
+
+module.exports = function (tokens) {
+  var index = 0
+
+  function hasMore () {
+    return index < tokens.length
+  }
+
+  function token () {
+    return hasMore() ? tokens[index] : null
+  }
+
+  function next () {
+    if (!hasMore()) {
+      throw new Error()
+    }
+    index++
+  }
+
+  function parseOperator (operator) {
+    var t = token()
+    if (t && t.type === 'OPERATOR' && operator === t.string) {
+      next()
+      return t.string
+    }
+  }
+
+  function parseWith () {
+    if (parseOperator('WITH')) {
+      var t = token()
+      if (t && t.type === 'EXCEPTION') {
+        next()
+        return t.string
+      }
+      throw new Error('Expected exception after `WITH`')
+    }
+  }
+
+  function parseLicenseRef () {
+    // TODO: Actually, everything is concatenated into one string
+    // for backward-compatibility but it could be better to return
+    // a nice structure.
+    var begin = index
+    var string = ''
+    var t = token()
+    if (t.type === 'DOCUMENTREF') {
+      next()
+      string += 'DocumentRef-' + t.string + ':'
+      if (!parseOperator(':')) {
+        throw new Error('Expected `:` after `DocumentRef-...`')
+      }
+    }
+    t = token()
+    if (t.type === 'LICENSEREF') {
+      next()
+      string += 'LicenseRef-' + t.string
+      return { license: string }
+    }
+    index = begin
+  }
+
+  function parseLicense () {
+    var t = token()
+    if (t && t.type === 'LICENSE') {
+      next()
+      var node = { license: t.string }
+      if (parseOperator('+')) {
+        node.plus = true
+      }
+      var exception = parseWith()
+      if (exception) {
+        node.exception = exception
+      }
+      return node
+    }
+  }
+
+  function parseParenthesizedExpression () {
+    var left = parseOperator('(')
+    if (!left) {
+      return
+    }
+
+    var expr = parseExpression()
+
+    if (!parseOperator(')')) {
+      throw new Error('Expected `)`')
+    }
+
+    return expr
+  }
+
+  function parseAtom () {
+    return (
+      parseParenthesizedExpression() ||
+      parseLicenseRef() ||
+      parseLicense()
+    )
+  }
+
+  function makeBinaryOpParser (operator, nextParser) {
+    return function parseBinaryOp () {
+      var left = nextParser()
+      if (!left) {
+        return
+      }
+
+      if (!parseOperator(operator)) {
+        return left
+      }
+
+      var right = parseBinaryOp()
+      if (!right) {
+        throw new Error('Expected expression')
+      }
+      return {
+        left: left,
+        conjunction: operator.toLowerCase(),
+        right: right
+      }
+    }
+  }
+
+  var parseAnd = makeBinaryOpParser('AND', parseAtom)
+  var parseExpression = makeBinaryOpParser('OR', parseAnd)
+
+  var node = parseExpression()
+  if (!node || hasMore()) {
+    throw new Error('Syntax error')
+  }
+  return node
+}

package/node_modules/spdx-expression-parse/scan.js

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+'use strict'
+
+var licenses = []
+  .concat(require('spdx-license-ids'))
+  .concat(require('spdx-license-ids/deprecated'))
+var exceptions = require('spdx-exceptions')
+
+module.exports = function (source) {
+  var index = 0
+
+  function hasMore () {
+    return index < source.length
+  }
+
+  // `value` can be a regexp or a string.
+  // If it is recognized, the matching source string is returned and
+  // the index is incremented. Otherwise `undefined` is returned.
+  function read (value) {
+    if (value instanceof RegExp) {
+      var chars = source.slice(index)
+      var match = chars.match(value)
+      if (match) {
+        index += match[0].length
+        return match[0]
+      }
+    } else {
+      if (source.indexOf(value, index) === index) {
+        index += value.length
+        return value
+      }
+    }
+  }
+
+  function skipWhitespace () {
+    read(/[ ]*/)
+  }
+
+  function operator () {
+    var string
+    var possibilities = [/^WITH/i, /^AND/i, /^OR/i, '(', ')', ':', '+']
+    for (var i = 0; i < possibilities.length; i++) {
+      string = read(possibilities[i])
+      if (string) {
+        break
+      }
+    }
+
+    if (string === '+' && index > 1 && source[index - 2] === ' ') {
+      throw new Error('Space before `+`')
+    }
+
+    return string && {
+      type: 'OPERATOR',
+      string: string.toUpperCase()
+    }
+  }
+
+  function idstring () {
+    return read(/[A-Za-z0-9-.]+/)
+  }
+
+  function expectIdstring () {
+    var string = idstring()
+    if (!string) {
+      throw new Error('Expected idstring at offset ' + index)
+    }
+    return string
+  }
+
+  function documentRef () {
+    if (read('DocumentRef-')) {
+      var string = expectIdstring()
+      return { type: 'DOCUMENTREF', string: string }
+    }
+  }
+
+  function licenseRef () {
+    if (read('LicenseRef-')) {
+      var string = expectIdstring()
+      return { type: 'LICENSEREF', string: string }
+    }
+  }
+
+  function identifier () {
+    var begin = index
+    var string = idstring()
+
+    if (licenses.indexOf(string) !== -1) {
+      return {
+        type: 'LICENSE',
+        string: string
+      }
+    } else if (exceptions.indexOf(string) !== -1) {
+      return {
+        type: 'EXCEPTION',
+        string: string
+      }
+    }
+
+    index = begin
+  }
+
+  // Tries to read the next token. Returns `undefined` if no token is
+  // recognized.
+  function parseToken () {
+    // Ordering matters
+    return (
+      operator() ||
+      documentRef() ||
+      licenseRef() ||
+      identifier()
+    )
+  }
+
+  var tokens = []
+  while (hasMore()) {
+    skipWhitespace()
+    if (!hasMore()) {
+      break
+    }
+
+    var token = parseToken()
+    if (!token) {
+      throw new Error('Unexpected `' + source[index] +
+                      '` at offset ' + index)
+    }
+
+    tokens.push(token)
+  }
+  return tokens
+}