| <?php |
| |
| /* |
| * This file is part of the Symfony package. |
| * |
| * (c) Fabien Potencier <fabien@symfony.com> |
| * |
| * For the full copyright and license information, please view the LICENSE |
| * file that was distributed with this source code. |
| */ |
| |
| namespace Symfony\Component\Translation\Util; |
| |
| /** |
| * ArrayConverter generates tree like structure from a message catalogue. |
| * e.g. this |
| * 'foo.bar1' => 'test1', |
| * 'foo.bar2' => 'test2' |
| * converts to follows: |
| * foo: |
| * bar1: test1 |
| * bar2: test2. |
| * |
| * @author Gennady Telegin <gtelegin@gmail.com> |
| */ |
| class ArrayConverter |
| { |
| /** |
| * Converts linear messages array to tree-like array. |
| * For example this array('foo.bar' => 'value') will be converted to ['foo' => ['bar' => 'value']]. |
| * |
| * @param array $messages Linear messages array |
| * |
| * @return array Tree-like messages array |
| */ |
| public static function expandToTree(array $messages) |
| { |
| $tree = []; |
| |
| foreach ($messages as $id => $value) { |
| $referenceToElement = &self::getElementByPath($tree, explode('.', $id)); |
| |
| $referenceToElement = $value; |
| |
| unset($referenceToElement); |
| } |
| |
| return $tree; |
| } |
| |
| private static function &getElementByPath(array &$tree, array $parts) |
| { |
| $elem = &$tree; |
| $parentOfElem = null; |
| |
| foreach ($parts as $i => $part) { |
| if (isset($elem[$part]) && \is_string($elem[$part])) { |
| /* Process next case: |
| * 'foo': 'test1', |
| * 'foo.bar': 'test2' |
| * |
| * $tree['foo'] was string before we found array {bar: test2}. |
| * Treat new element as string too, e.g. add $tree['foo.bar'] = 'test2'; |
| */ |
| $elem = &$elem[implode('.', \array_slice($parts, $i))]; |
| break; |
| } |
| $parentOfElem = &$elem; |
| $elem = &$elem[$part]; |
| } |
| |
| if ($elem && \is_array($elem) && $parentOfElem) { |
| /* Process next case: |
| * 'foo.bar': 'test1' |
| * 'foo': 'test2' |
| * |
| * $tree['foo'] was array = {bar: 'test1'} before we found string constant `foo`. |
| * Cancel treating $tree['foo'] as array and cancel back it expansion, |
| * e.g. make it $tree['foo.bar'] = 'test1' again. |
| */ |
| self::cancelExpand($parentOfElem, $part, $elem); |
| } |
| |
| return $elem; |
| } |
| |
| private static function cancelExpand(array &$tree, string $prefix, array $node) |
| { |
| $prefix .= '.'; |
| |
| foreach ($node as $id => $value) { |
| if (\is_string($value)) { |
| $tree[$prefix.$id] = $value; |
| } else { |
| self::cancelExpand($tree, $prefix.$id, $value); |
| } |
| } |
| } |
| } |