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RuleList.php
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RuleList.php
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<?php
declare(strict_types=1);
namespace PrinsFrank\Transliteration\Syntax\Rule;
use PrinsFrank\Transliteration\Syntax\Enum\Literal;
use PrinsFrank\Transliteration\Exception\InvalidArgumentException;
use PrinsFrank\Transliteration\Syntax\FormalId\Components\Filter;
use PrinsFrank\Transliteration\Syntax\FormalId\SingleID;
use PrinsFrank\Transliteration\Syntax\Rule\Components\Conversion;
use PrinsFrank\Transliteration\Syntax\Rule\Components\VariableDefinition;
use Stringable;
/**
* @internal
*
* @see https://unicode-org.github.io/icu/userguide/transforms/general/#rule-syntax
*/
final class RuleList implements Stringable
{
/**
* @param non-empty-array<SingleID|Conversion|VariableDefinition> $rules
* @throws InvalidArgumentException
*/
public function __construct(
public readonly array $rules,
public readonly Filter|null $globalFilter = null,
public readonly Filter|null $inverseFilter = null,
) {
if ($rules === []) {
throw new InvalidArgumentException('Param $rules should be a non-empty array');
}
foreach ($this->rules as $rule) {
$rule instanceof SingleID === true || $rule instanceof Conversion === true || $rule instanceof VariableDefinition === true || throw new InvalidArgumentException('Param $rules should be an array of "' . SingleID::class . '|' . Conversion::class . '|' . VariableDefinition::class . '"');
}
}
public function __toString(): string
{
$string = '';
if ($this->globalFilter !== null) {
$string .= $this->globalFilter->__toString() . Literal::Semicolon->value . PHP_EOL;
}
foreach ($this->rules as $rule) {
if ($rule instanceof SingleID) {
$string .= Literal::Colon->value . Literal::Colon->value;
}
$string .= $rule->__toString() . Literal::Semicolon->value . PHP_EOL;
}
if ($this->inverseFilter !== null) {
$string .= $this->inverseFilter->__toString() . Literal::Semicolon->value . PHP_EOL;
}
return $string;
}
}