/
TransliteratorBuilder.php
163 lines (129 loc) · 4.95 KB
/
TransliteratorBuilder.php
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<?php
declare(strict_types=1);
namespace PrinsFrank\Transliteration;
use PrinsFrank\Transliteration\Exception\RecursionException;
use PrinsFrank\Transliteration\Syntax\Enum\TransliterationDirection;
use PrinsFrank\Transliteration\Exception\InvalidArgumentException;
use PrinsFrank\Transliteration\Exception\UnableToCreateTransliteratorException;
use PrinsFrank\Transliteration\Syntax\FormalId\Components\Filter;
use PrinsFrank\Transliteration\Syntax\FormalId\CompoundID;
use PrinsFrank\Transliteration\Syntax\FormalId\SingleID;
use PrinsFrank\Transliteration\Syntax\Rule\Components\Conversion;
use PrinsFrank\Transliteration\Syntax\Rule\Components\VariableDefinition;
use PrinsFrank\Transliteration\Syntax\Rule\RuleList;
use PrinsFrank\Transliteration\Transliterator\RecursionHandler;
use PrinsFrank\Transliteration\Transliterator\TypedTransliterator;
use Transliterator;
/** @api */
class TransliteratorBuilder
{
/** @var list<SingleID|Conversion|VariableDefinition> */
protected array $conversions = [];
protected TransliterationDirection $direction = TransliterationDirection::FORWARD;
protected Filter|null $globalFilter = null;
/** @internal to detect recursive ConversionSets before they hang a system */
protected readonly RecursionHandler $recursionHandler;
public function __construct()
{
$this->recursionHandler = new RecursionHandler($this);
}
public function setDirection(TransliterationDirection $direction): static
{
$this->direction = $direction;
return $this;
}
public function getDirection(): TransliterationDirection
{
return $this->direction;
}
public function setGlobalFilter(Filter|null $globalFilter): static
{
$this->globalFilter = $globalFilter;
return $this;
}
public function getGlobalFilter(): ?Filter
{
return $this->globalFilter;
}
public function addSingleID(SingleID $singleID): static
{
$this->conversions[] = $singleID;
return $this;
}
public function addConversion(Conversion $conversion): static
{
$this->conversions[] = $conversion;
return $this;
}
public function addVariableDefinition(VariableDefinition $variableDefinition): static
{
$this->conversions[] = $variableDefinition;
return $this;
}
/** @return list<SingleID|Conversion|VariableDefinition> */
public function getConversions(): array
{
return $this->conversions;
}
/** @throws RecursionException */
public function applyConversionSet(ConversionSet $conversionSet): static
{
$this->recursionHandler->applyConversionSet($conversionSet);
return $this;
}
/**
* @param list<ConversionSet> $conversionSets
* @throws RecursionException
*/
public function applyConversionSets(array $conversionSets): static
{
foreach ($conversionSets as $conversionSet) {
$this->applyConversionSet($conversionSet);
}
return $this;
}
/**
* @throws InvalidArgumentException
* @throws UnableToCreateTransliteratorException
*/
public function getTransliterator(): Transliterator
{
if ($this->conversions === []) {
throw new UnableToCreateTransliteratorException('There are no conversions', null);
}
if ($this->containsRuleSyntax() === true) {
return TypedTransliterator::create(new RuleList($this->conversions, $this->globalFilter), $this->direction);
}
if ($this->globalFilter === null && count($this->conversions) === 1) {
return TypedTransliterator::create($this->conversions[0], $this->direction);
}
return TypedTransliterator::create(new CompoundID($this->conversions, $this->globalFilter), $this->direction);
}
/**
* @throws InvalidArgumentException
* @throws UnableToCreateTransliteratorException
*/
public function transliterate(string $string): string
{
if ($this->conversions === []) {
throw new UnableToCreateTransliteratorException('There are no conversions', null);
}
if ($this->containsRuleSyntax() === true) {
return TypedTransliterator::transliterate($string, new RuleList($this->conversions, $this->globalFilter), $this->direction);
}
if ($this->globalFilter === null && count($this->conversions) === 1) {
return TypedTransliterator::transliterate($string, $this->conversions[0], $this->direction);
}
return TypedTransliterator::transliterate($string, new CompoundID($this->conversions, $this->globalFilter), $this->direction);
}
/** @phpstan-assert-if-false list<SingleID> $this->conversions */
protected function containsRuleSyntax(): bool
{
foreach ($this->conversions as $conversion) {
if ($conversion instanceof SingleID === false) {
return true;
}
}
return false;
}
}