ArrayConverter.php
| 1 | <?php |
| 2 | |
| 3 | /* |
| 4 | * This file is part of the Symfony package. |
| 5 | * |
| 6 | * (c) Fabien Potencier <fabien@symfony.com> |
| 7 | * |
| 8 | * For the full copyright and license information, please view the LICENSE |
| 9 | * file that was distributed with this source code. |
| 10 | */ |
| 11 | namespace IAWPSCOPED\Symfony\Component\Translation\Util; |
| 12 | |
| 13 | /** |
| 14 | * ArrayConverter generates tree like structure from a message catalogue. |
| 15 | * e.g. this |
| 16 | * 'foo.bar1' => 'test1', |
| 17 | * 'foo.bar2' => 'test2' |
| 18 | * converts to follows: |
| 19 | * foo: |
| 20 | * bar1: test1 |
| 21 | * bar2: test2. |
| 22 | * |
| 23 | * @author Gennady Telegin <gtelegin@gmail.com> |
| 24 | * @internal |
| 25 | */ |
| 26 | class ArrayConverter |
| 27 | { |
| 28 | /** |
| 29 | * Converts linear messages array to tree-like array. |
| 30 | * For example this array('foo.bar' => 'value') will be converted to ['foo' => ['bar' => 'value']]. |
| 31 | * |
| 32 | * @param array $messages Linear messages array |
| 33 | * |
| 34 | * @return array |
| 35 | */ |
| 36 | public static function expandToTree(array $messages) |
| 37 | { |
| 38 | $tree = []; |
| 39 | foreach ($messages as $id => $value) { |
| 40 | $referenceToElement =& self::getElementByPath($tree, self::getKeyParts($id)); |
| 41 | $referenceToElement = $value; |
| 42 | unset($referenceToElement); |
| 43 | } |
| 44 | return $tree; |
| 45 | } |
| 46 | private static function &getElementByPath(array &$tree, array $parts) |
| 47 | { |
| 48 | $elem =& $tree; |
| 49 | $parentOfElem = null; |
| 50 | foreach ($parts as $i => $part) { |
| 51 | if (isset($elem[$part]) && \is_string($elem[$part])) { |
| 52 | /* Process next case: |
| 53 | * 'foo': 'test1', |
| 54 | * 'foo.bar': 'test2' |
| 55 | * |
| 56 | * $tree['foo'] was string before we found array {bar: test2}. |
| 57 | * Treat new element as string too, e.g. add $tree['foo.bar'] = 'test2'; |
| 58 | */ |
| 59 | $elem =& $elem[\implode('.', \array_slice($parts, $i))]; |
| 60 | break; |
| 61 | } |
| 62 | $parentOfElem =& $elem; |
| 63 | $elem =& $elem[$part]; |
| 64 | } |
| 65 | if ($elem && \is_array($elem) && $parentOfElem) { |
| 66 | /* Process next case: |
| 67 | * 'foo.bar': 'test1' |
| 68 | * 'foo': 'test2' |
| 69 | * |
| 70 | * $tree['foo'] was array = {bar: 'test1'} before we found string constant `foo`. |
| 71 | * Cancel treating $tree['foo'] as array and cancel back it expansion, |
| 72 | * e.g. make it $tree['foo.bar'] = 'test1' again. |
| 73 | */ |
| 74 | self::cancelExpand($parentOfElem, $part, $elem); |
| 75 | } |
| 76 | return $elem; |
| 77 | } |
| 78 | private static function cancelExpand(array &$tree, string $prefix, array $node) |
| 79 | { |
| 80 | $prefix .= '.'; |
| 81 | foreach ($node as $id => $value) { |
| 82 | if (\is_string($value)) { |
| 83 | $tree[$prefix . $id] = $value; |
| 84 | } else { |
| 85 | self::cancelExpand($tree, $prefix . $id, $value); |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | /** |
| 90 | * @return string[] |
| 91 | */ |
| 92 | private static function getKeyParts(string $key) : array |
| 93 | { |
| 94 | $parts = \explode('.', $key); |
| 95 | $partsCount = \count($parts); |
| 96 | $result = []; |
| 97 | $buffer = ''; |
| 98 | foreach ($parts as $index => $part) { |
| 99 | if (0 === $index && '' === $part) { |
| 100 | $buffer = '.'; |
| 101 | continue; |
| 102 | } |
| 103 | if ($index === $partsCount - 1 && '' === $part) { |
| 104 | $buffer .= '.'; |
| 105 | $result[] = $buffer; |
| 106 | continue; |
| 107 | } |
| 108 | if (isset($parts[$index + 1]) && '' === $parts[$index + 1]) { |
| 109 | $buffer .= $part; |
| 110 | continue; |
| 111 | } |
| 112 | if ($buffer) { |
| 113 | $result[] = $buffer . $part; |
| 114 | $buffer = ''; |
| 115 | continue; |
| 116 | } |
| 117 | $result[] = $part; |
| 118 | } |
| 119 | return $result; |
| 120 | } |
| 121 | } |
| 122 |