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@ -12,8 +12,6 @@
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namespace Composer\Util;
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use Composer\Json\JsonFile;
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/**
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* Supports composer array and SPDX tag notation for disjunctive/conjunctive
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* licenses.
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@ -22,53 +20,60 @@ use Composer\Json\JsonFile;
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*/
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class SpdxLicense
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{
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/**
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* @var array
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*/
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/** @var array */
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private $licenses;
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/** @var array */
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private $exceptions;
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public function __construct()
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{
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$this->loadLicenses();
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$this->loadExceptions();
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}
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private function loadLicenses()
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/**
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* Returns license metadata by license identifier.
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*
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* @param string $identifier
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*
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* @return array|null
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*/
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public function getLicenseByIdentifier($identifier)
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{
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if (is_array($this->licenses)) {
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return $this->licenses;
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if (!isset($this->licenses[$identifier])) {
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return;
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}
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$jsonFile = new JsonFile(__DIR__ . '/../../../res/spdx-licenses.json');
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$this->licenses = $jsonFile->read();
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$license = $this->licenses[$identifier];
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$license[] = 'http://spdx.org/licenses/' . $identifier . '.html#licenseText';
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return $this->licenses;
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return $license;
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}
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/**
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* Returns license metadata by license identifier.
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* Returns license exception metadata by license exception identifier.
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*
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* @param string $identifier
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*
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* @return array|null
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*/
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public function getLicenseByIdentifier($identifier)
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public function getExceptionByIdentifier($identifier)
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{
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if (!isset($this->licenses[$identifier])) {
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if (!isset($this->exceptions[$identifier])) {
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return;
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}
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$license = $this->licenses[$identifier];
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// add URL for the license text (it's not included in the json)
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$license[2] = 'http://spdx.org/licenses/' . $identifier . '#licenseText';
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$license = $this->exceptions[$identifier];
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$license[] = 'http://spdx.org/licenses/' . $identifier . '.html#licenseExceptionText';
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return $license;
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}
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/**
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* Returns the short identifier of a license by full name.
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* Returns the short identifier of a license (exception) by full name.
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*
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* @param string $identifier
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* @param string $name
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*
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* @return string
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*/
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@ -79,11 +84,19 @@ class SpdxLicense
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return $identifier;
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}
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}
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foreach ($this->exceptions as $identifier => $licenseData) {
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if ($licenseData[0] === $name) { // key 0 = fullname
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return $identifier;
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}
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}
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}
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/**
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* Returns the OSI Approved status for a license by identifier.
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*
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* @param string $identifier
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*
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* @return bool
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*/
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public function isOsiApprovedByIdentifier($identifier)
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@ -105,6 +118,20 @@ class SpdxLicense
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return in_array($identifier, $identifiers);
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}
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/**
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* Check, if the identifier for a exception is valid.
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*
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* @param string $identifier
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*
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* @return bool
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*/
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private function isValidExceptionIdentifier($identifier)
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{
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$identifiers = array_keys($this->exceptions);
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return in_array($identifier, $identifiers);
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}
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/**
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* @param array|string $license
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*
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@ -118,18 +145,49 @@ class SpdxLicense
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if ($count !== count(array_filter($license, 'is_string'))) {
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throw new \InvalidArgumentException('Array of strings expected.');
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}
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$license = $count > 1 ? '('.implode(' or ', $license).')' : (string) reset($license);
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$license = $count > 1 ? '('.implode(' OR ', $license).')' : (string) reset($license);
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}
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if (!is_string($license)) {
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throw new \InvalidArgumentException(sprintf(
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'Array or String expected, %s given.', gettype($license)
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'Array or String expected, %s given.',
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gettype($license)
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));
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}
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return $this->isValidLicenseString($license);
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}
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/**
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* @return array
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*/
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private function loadLicenses()
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{
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if (is_array($this->licenses)) {
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return $this->licenses;
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}
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$jsonFile = file_get_contents(__DIR__ . '/../../../res/spdx-licenses.json');
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$this->licenses = json_decode($jsonFile, true);
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return $this->licenses;
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}
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/**
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* @return array
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*/
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private function loadExceptions()
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{
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if (is_array($this->exceptions)) {
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return $this->exceptions;
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}
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$jsonFile = file_get_contents(__DIR__ . '/../../../res/spdx-exceptions.json');
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$this->exceptions = json_decode($jsonFile, true);
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return $this->exceptions;
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}
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/**
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* @param string $license
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*
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@ -141,10 +199,11 @@ class SpdxLicense
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$tokens = array(
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'po' => '\(',
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'pc' => '\)',
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'op' => '(?:or|and)',
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'op' => '(?:or|OR|and|AND)',
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'wi' => '(?:with|WITH)',
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'lix' => '(?:NONE|NOASSERTION)',
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'lir' => 'LicenseRef-\d+',
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'lic' => '[-+_.a-zA-Z0-9]{3,}',
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'lic' => '[-_.a-zA-Z0-9]{3,}\+?',
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'ws' => '\s+',
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'_' => '.',
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);
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@ -171,44 +230,58 @@ class SpdxLicense
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return array($name, $matches[0][0]);
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}
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throw new \RuntimeException('At least the last pattern needs to match, but it did not (dot-match-all is missing?).');
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throw new \RuntimeException(
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'At least the last pattern needs to match, but it did not (dot-match-all is missing?).'
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);
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};
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$open = 0;
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$require = 1;
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$with = false;
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$require = true;
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$lastop = null;
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while (list($token, $string) = $next()) {
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switch ($token) {
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case 'po':
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if ($open || !$require) {
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if ($open || !$require || $with) {
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return false;
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}
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$open = 1;
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break;
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case 'pc':
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if ($open !== 1 || $require || !$lastop) {
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if ($open !== 1 || $require || !$lastop || $with) {
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return false;
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}
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$open = 2;
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break;
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case 'op':
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if ($require || !$open) {
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if ($require || !$open || $with) {
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return false;
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}
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$lastop || $lastop = $string;
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if ($lastop !== $string) {
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return false;
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}
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$require = 1;
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$require = true;
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break;
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case 'wi':
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$with = true;
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break;
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case 'lix':
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if ($open) {
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if ($open || $with) {
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return false;
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}
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goto lir;
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case 'lic':
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if (!$this->isValidLicenseIdentifier($string)) {
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if ($with && $this->isValidExceptionIdentifier($string)) {
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$require = true;
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$with = false;
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goto lir;
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}
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if ($with) {
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return false;
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}
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if (!$this->isValidLicenseIdentifier(rtrim($string, '+'))) {
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return false;
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}
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// Fall-through intended
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@ -217,7 +290,7 @@ class SpdxLicense
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if (!$require) {
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return false;
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}
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$require = 0;
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$require = false;
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break;
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case 'ws':
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break;
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@ -228,6 +301,6 @@ class SpdxLicense
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}
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}
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return !($open % 2 || $require);
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return !($open % 2 || $require || $with);
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}
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}
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Rob Bast
9 years ago