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<?php
declare(strict_types=1);
namespace Dotenv\Parser;
use Dotenv\Exception\InvalidFileException;
use Dotenv\Util\Regex;
use GrahamCampbell\ResultType\Result;
use GrahamCampbell\ResultType\Success;
final class Parser implements ParserInterface
{
/**
* Parse content into an entry array.
*
* @param string $content
*
* @throws \Dotenv\Exception\InvalidFileException
*
* @return \Dotenv\Parser\Entry[]
*/
public function parse(string $content)
{
return Regex::split("/(\r\n|\n|\r)/", $content)->mapError(static function () {
return 'Could not split into separate lines.';
})->flatMap(static function (array $lines) {
return self::process(Lines::process($lines));
})->mapError(static function (string $error) {
throw new InvalidFileException(\sprintf('Failed to parse dotenv file. %s', $error));
})->success()->get();
}
/**
* Convert the raw entries into proper entries.
*
* @param string[] $entries
*
* @return \GrahamCampbell\ResultType\Result<\Dotenv\Parser\Entry[],string>
*/
private static function process(array $entries)
{
/** @var \GrahamCampbell\ResultType\Result<\Dotenv\Parser\Entry[],string> */
return \array_reduce($entries, static function (Result $result, string $raw) {
return $result->flatMap(static function (array $entries) use ($raw) {
return EntryParser::parse($raw)->map(static function (Entry $entry) use ($entries) {
/** @var \Dotenv\Parser\Entry[] */
return \array_merge($entries, [$entry]);
});
});
}, Success::create([]));
}
}