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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace PeServer\Core\Html; |
| 6 | |
| 7 | require_once(__DIR__ . DIRECTORY_SEPARATOR . '../Libs/highlight.php/HighlightUtilities/functions.php'); |
| 8 | |
| 9 | use DomainException; |
| 10 | use Highlight\Highlighter; |
| 11 | //use \HighlightUtilities; |
| 12 | use PeServer\Core\Collection\Arr; |
| 13 | use PeServer\Core\Text; |
| 14 | use PeServer\Core\TypeUtility; |
| 15 | |
| 16 | |
| 17 | /** |
| 18 | * HTMLとしてのコードハイライト処理。 |
| 19 | */ |
| 20 | class CodeHighlighter |
| 21 | { |
| 22 | #region function |
| 23 | |
| 24 | /** |
| 25 | * 文字列から強調行番号を取得。 |
| 26 | * |
| 27 | * @param string $value |
| 28 | * @return int[] |
| 29 | */ |
| 30 | public function toNumbers(string $value): array |
| 31 | { |
| 32 | $lineNumbers = []; |
| 33 | |
| 34 | if (!Text::isNullOrWhiteSpace($value)) { |
| 35 | $numberStrings = Text::split($value, ','); |
| 36 | $numberValues = array_filter($numberStrings, fn ($s) => TypeUtility::tryParseInteger(Text::trim($s), $unused)); |
| 37 | $lineNumbers = array_map(fn ($s) => (int)Text::trim($s), $numberValues); |
| 38 | } |
| 39 | |
| 40 | return $lineNumbers; |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * タグ付けソースを行ごとに返却。 |
| 45 | * |
| 46 | * @param string $language |
| 47 | * @param string $source |
| 48 | * @return string[] |
| 49 | */ |
| 50 | private function toLines(string $language, string $source): array |
| 51 | { |
| 52 | if (!Text::isNullOrWhiteSpace($language)) { |
| 53 | $hl = new Highlighter(); //@phpstan-ignore-line Highlighter |
| 54 | try { |
| 55 | $highlighted = $hl->highlight($language, $source); //@phpstan-ignore-line highlight |
| 56 | $lines = \HighlightUtilities\splitCodeIntoArray($highlighted->value); //@phpstan-ignore-line splitCodeIntoArray |
| 57 | if ($lines !== false) { |
| 58 | return $lines; |
| 59 | } |
| 60 | } catch (DomainException) { |
| 61 | //NOP |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | return Text::splitLines($source); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * ソースコードをHTML変換。 |
| 70 | * |
| 71 | * @param string $language |
| 72 | * @param string $source |
| 73 | * @param int[] $lineNumbers |
| 74 | * @return string |
| 75 | */ |
| 76 | public function toHtml(string $language, string $source, array $lineNumbers = []): string |
| 77 | { |
| 78 | $lines = $this->toLines($language, $source); |
| 79 | |
| 80 | $head = '<pre class="source"><code class="hljs ' . $language . '">' . PHP_EOL; |
| 81 | $tail = PHP_EOL . '</code></pre>'; |
| 82 | |
| 83 | $sourceLines = []; |
| 84 | foreach ($lines as $key => $line) { |
| 85 | $number = $key + 1; |
| 86 | $addClass = ''; |
| 87 | if (Arr::in($lineNumbers, $number)) { |
| 88 | $addClass = 'strong-line'; |
| 89 | } |
| 90 | $sourceLine = '<span class="code-line ' . $addClass . '" data-line=' . $number . '>' . $line . '</span>'; |
| 91 | $sourceLines[] = $sourceLine; |
| 92 | } |
| 93 | |
| 94 | $values = Text::join(PHP_EOL, $sourceLines); |
| 95 | |
| 96 | return $head . $values . $tail; |
| 97 | } |
| 98 | |
| 99 | #endregion |
| 100 | } |