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<?php |
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/** |
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* This file is part of Cecil. |
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* |
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* (c) Arnaud Ligny <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Cecil\Converter; |
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use Cecil\Exception\RuntimeException; |
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use Symfony\Component\Yaml\Exception\ParseException; |
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use Symfony\Component\Yaml\Yaml; |
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use Yosymfony\Toml\Exception\ParseException as TomlParseException; |
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use Yosymfony\Toml\Toml; |
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/** |
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* Converter class. |
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* |
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* This class implements the ConverterInterface and provides methods to convert |
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* front matter from various formats (YAML, INI, TOML, JSON) to an associative array, |
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* and to convert the body of content from Markdown to HTML. |
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*/ |
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class Converter implements ConverterInterface |
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{ |
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/** @var Parsedown */ |
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protected $parsedown; |
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public function __construct(Parsedown $parsedown) |
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{ |
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$this->parsedown = $parsedown; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @throws RuntimeException |
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*/ |
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public function convertFrontmatter(string $string, string $format = 'yaml'): array |
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{ |
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if (!\in_array($format, ['yaml', 'ini', 'toml', 'json'])) { |
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throw new RuntimeException(\sprintf('The front matter format "%s" is not supported ("yaml", "ini", "toml" or "json").', $format)); |
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} |
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$method = \sprintf('convert%sToArray', ucfirst($format)); |
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return self::$method($string); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function convertBody(string $string): string |
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{ |
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return $this->parsedown->text($string); |
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} |
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/** |
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* Converts YAML string to array. |
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* |
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* @see https://wikipedia.org/wiki/YAML |
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*/ |
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private static function convertYamlToArray(string $string): array |
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{ |
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try { |
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$result = Yaml::parse((string) $string, Yaml::PARSE_DATETIME) ?? []; |
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if (!\is_array($result)) { |
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throw new RuntimeException('Unable to parse YAML front matter.'); |
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} |
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return $result; |
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} catch (ParseException $e) { |
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throw new RuntimeException($e->getMessage(), line: $e->getParsedLine()); |
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} catch (\Exception $e) { |
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throw new RuntimeException($e->getMessage()); |
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} |
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} |
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/** |
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* Converts INI string to array. |
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* |
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* @see https://wikipedia.org/wiki/INI_file |
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*/ |
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private static function convertIniToArray(string $string): array |
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{ |
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$result = parse_ini_string($string, true); |
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if ($result === false) { |
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throw new RuntimeException('Unable to parse INI front matter.'); |
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} |
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return $result; |
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} |
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/** |
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* Converts TOML string to array. |
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* |
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* @see https://wikipedia.org/wiki/TOML |
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*/ |
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private static function convertTomlToArray(string $string): array |
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{ |
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try { |
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$result = Toml::Parse((string) $string) ?? []; |
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if (!\is_array($result)) { |
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throw new RuntimeException('Unable to parse TOML front matter.'); |
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} |
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return $result; |
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} catch (TomlParseException $e) { |
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throw new RuntimeException($e->getMessage(), file: $e->getParsedFile(), line: $e->getParsedLine()); |
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} catch (\Exception $e) { |
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throw new RuntimeException($e->getMessage()); |
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} |
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} |
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/** |
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* Converts JSON string to array. |
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* |
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* @see https://wikipedia.org/wiki/JSON |
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*/ |
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private static function convertJsonToArray(string $string): array |
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{ |
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try { |
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$result = json_decode($string, true); |
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if ($result === null && json_last_error() !== JSON_ERROR_NONE) { |
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throw new \Exception('JSON error.'); |
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} |
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return $result; |
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} catch (\Exception) { |
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throw new RuntimeException('Unable to parse JSON front matter.'); |
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} |
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} |
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} |
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Cecilapp /
Cecil
