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<?php |
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declare(strict_types=1); |
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/** |
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* This file is part of Esi\SimpleTpl. |
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* |
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* (c) 2006 - 2024 Eric Sizemore <[email protected]> |
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* |
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* This file is licensed under The MIT License. For the full copyright and |
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* license information, please view the LICENSE.md file that was distributed |
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* with this source code. |
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*/ |
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namespace Esi\SimpleTpl; |
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use InvalidArgumentException; |
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use LogicException; |
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use RuntimeException; |
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use Symfony\Component\Cache\Adapter\AdapterInterface; |
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use Symfony\Component\Cache\Adapter\AbstractAdapter; |
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use Symfony\Component\Cache\PruneableInterface; |
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use function array_keys; |
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use function array_map; |
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use function array_values; |
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use function file_get_contents; |
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use function is_file; |
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use function is_readable; |
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use function md5; |
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use function sprintf; |
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use function str_replace; |
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use function sys_get_temp_dir; |
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final class Template |
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{ |
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private AdapterInterface $cache; |
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private string $leftDelimiter = '{'; |
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private string $rightDelimiter = '}'; |
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/** |
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* @var array<string> |
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*/ |
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private array $tplVars = []; |
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/** |
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* Constructor. |
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*/ |
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public function __construct(?AdapterInterface $cacheAdapter = null, ?string $cachePath = null) |
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{ |
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$this->cache = $cacheAdapter ?? AbstractAdapter::createSystemCache('simple_tpl', 300, '', $cachePath ?? sys_get_temp_dir()); |
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$this->pruneExpired(); |
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} |
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public function clearCache(): bool |
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{ |
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return $this->cache->clear(); |
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} |
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public function display(string $tplFile): void |
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{ |
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echo $this->parse($tplFile); |
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} |
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public function getLeftDelimiter(): string |
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{ |
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return $this->leftDelimiter; |
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} |
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public function getRightDelimiter(): string |
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{ |
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return $this->rightDelimiter; |
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} |
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/** |
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* @return array<string> |
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*/ |
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public function getTplVars(): array |
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{ |
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return $this->tplVars; |
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} |
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/** |
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* @throws InvalidArgumentException if the file cannot be found or read. |
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* @throws RuntimeException if the file has no content. |
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* @throws LogicException if there are no template variables set. |
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*/ |
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public function parse(string $tplFile): string |
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{ |
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// Make sure it's a valid file, and it exists |
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if (!is_file($tplFile) || !is_readable($tplFile)) { |
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throw new InvalidArgumentException(sprintf('"%s" does not exist or is not a file.', $tplFile)); |
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} |
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$cacheKey = 'template_' . md5($tplFile); |
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if ($this->cache->hasItem($cacheKey)) { |
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/** |
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* @var string $templateCache |
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*/ |
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$templateCache = $this->cache->getItem($cacheKey)->get(); |
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return $templateCache; |
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} |
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$contents = (string) file_get_contents($tplFile); |
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// Make sure it has content. |
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if ($contents === '') { |
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throw new RuntimeException(sprintf('"%s" does not appear to have any valid content.', $tplFile)); |
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} |
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if ($this->tplVars === []) { |
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throw new LogicException('Unable to parse template, no tplVars found'); |
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} |
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// Perform replacements |
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$contents = str_replace( |
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array_map( |
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fn (int|string $find): string => sprintf('%s%s%s', $this->leftDelimiter, $find, $this->rightDelimiter), |
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array_keys($this->tplVars) |
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), |
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array_values($this->tplVars), |
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$contents |
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); |
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$this->cache->save($this->cache->getItem($cacheKey)->set($contents)); |
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return $contents; |
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} |
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public function pruneExpired(): void |
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{ |
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if ($this->cache instanceof PruneableInterface) { |
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$this->cache->prune(); |
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} |
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} |
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public function refreshCache(string $tplFile): bool |
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{ |
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$cacheKey = 'template_' . md5($tplFile); |
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return $this->cache->deleteItem($cacheKey); |
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} |
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public function setLeftDelimiter(string $delimiter): void |
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{ |
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$this->leftDelimiter = $delimiter; |
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} |
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public function setRightDelimiter(string $delimiter): void |
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{ |
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$this->rightDelimiter = $delimiter; |
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} |
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/** |
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* @param array<string> $tplVars Template variables and replacements |
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*/ |
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public function setTplVars(array $tplVars): void |
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{ |
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$this->tplVars = $tplVars; |
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} |
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} |
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ericsizemore /
simple_tpl
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