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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Celemas\Cli; |
| 6 | |
| 7 | /** |
| 8 | * Parses a command's argument tokens into options and positionals. |
| 9 | * |
| 10 | * Options use `--key=value` and repeat: `--tag=a --tag=b`. A dashed token |
| 11 | * without `=`, such as `--force` or `-h`, is a boolean flag. Every other |
| 12 | * token is a positional. Unlike PHP's native `getopt`, this reads an |
| 13 | * explicit token list, so the command name never interferes with parsing. |
| 14 | * |
| 15 | * A positional cannot start with `-`; such a token is read as a flag. |
| 16 | * |
| 17 | * @api |
| 18 | */ |
| 19 | final class Args |
| 20 | { |
| 21 | /** @var array<string, list<string>> */ |
| 22 | private array $options = []; |
| 23 | |
| 24 | /** @var list<string> */ |
| 25 | private array $positionals = []; |
| 26 | |
| 27 | /** |
| 28 | * @param list<string> $tokens |
| 29 | */ |
| 30 | public function __construct(array $tokens = []) |
| 31 | { |
| 32 | foreach ($tokens as $token) { |
| 33 | if (!str_starts_with($token, '-')) { |
| 34 | $this->positionals[] = $token; |
| 35 | |
| 36 | continue; |
| 37 | } |
| 38 | |
| 39 | if (str_contains($token, '=')) { |
| 40 | /** @var array{0: string, 1: string} $pair */ |
| 41 | $pair = explode('=', $token, limit: 2); |
| 42 | $this->options[$pair[0]][] = $pair[1]; |
| 43 | |
| 44 | continue; |
| 45 | } |
| 46 | |
| 47 | $this->options[$token] ??= []; |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | public function has(string $key): bool |
| 52 | { |
| 53 | return array_key_exists($key, $this->options); |
| 54 | } |
| 55 | |
| 56 | public function opt(string $key, string $default = ''): string |
| 57 | { |
| 58 | return $this->options[$key][0] ?? $default; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * @param list<string> $default |
| 63 | * @return list<string> |
| 64 | */ |
| 65 | public function opts(string $key, array $default = []): array |
| 66 | { |
| 67 | $values = $this->options[$key] ?? []; |
| 68 | |
| 69 | return $values === [] ? $default : $values; |
| 70 | } |
| 71 | |
| 72 | public function positional(int $index, ?string $default = null): ?string |
| 73 | { |
| 74 | return $this->positionals[$index] ?? $default; |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * @return list<string> |
| 79 | */ |
| 80 | public function positionals(): array |
| 81 | { |
| 82 | return $this->positionals; |
| 83 | } |
| 84 | } |