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<?php |
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namespace Bavix\Flow; |
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use Bavix\Helpers\Arr; |
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use Bavix\Lexer\Lexer; |
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use Bavix\SDK\FileLoader; |
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/** |
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* Class Lexeme |
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* |
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* @package Bavix\Flow |
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*/ |
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class Lexeme |
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{ |
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/** |
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* @var array |
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*/ |
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protected $types; |
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/** |
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* @var array |
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*/ |
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protected $default = [ |
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'types' => [ |
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'variable' |
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] |
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]; |
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/** |
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* @var array |
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*/ |
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protected $props = []; |
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/** |
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* @var array |
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*/ |
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protected $data = []; |
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/** |
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* @var array |
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*/ |
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protected $closed = []; |
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/** |
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* @var array |
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*/ |
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protected $items = []; |
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/** |
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* @var string[] |
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*/ |
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protected $folders = []; |
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/** |
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* @var Lexer |
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*/ |
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protected $lexer; |
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/** |
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* @var Flow |
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*/ |
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protected $flow; |
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/** |
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* Lexeme constructor. |
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* |
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* @param Flow $flow |
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*/ |
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public function __construct(Flow $flow) |
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{ |
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$this->types = Property::get('types'); |
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$this->addFolder(\dirname(__DIR__, 2) . '/lexemes'); |
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$this->flow = $flow; |
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} |
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/** |
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* @param string $path |
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* |
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* @return self |
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*/ |
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public function addFolder(string $path): self |
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{ |
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Arr::unShift($this->folders, $path); |
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return $this; |
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} |
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/** |
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* @return Lexer |
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*/ |
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protected function lexer(): Lexer |
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{ |
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if (!$this->lexer) |
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{ |
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$this->lexer = new Lexer(); |
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} |
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return $this->lexer; |
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} |
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/** |
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* @param $file |
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* |
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* @return FileLoader\DataInterface|null |
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*/ |
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protected function loader($file) |
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{ |
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foreach ($this->folders as $folder) |
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{ |
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foreach (FileLoader::extensions() as $ext) |
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{ |
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try |
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{ |
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return FileLoader::load($folder . '/' . $file . '.' . $ext); |
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} |
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catch (\Throwable $throwable) |
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{ |
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// skip... |
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} |
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} |
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} |
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return null; |
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} |
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/** |
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* @param array $props |
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* @param string $key |
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* |
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* @return array |
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*/ |
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public function property(array $props, string $key): array |
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{ |
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$self = $this; |
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$prop = &$props[$key]; |
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if (empty($this->props[$key])) |
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{ |
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if (isset($prop['extends'])) |
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{ |
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$extends = Arr::map((array)$prop['extends'], function ($extend) use ($self, &$props) { |
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return $self->property($props, $extend); |
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}); |
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$prop = \array_merge_recursive( |
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$prop, |
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...$extends |
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); |
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} |
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$this->props[$key] = $prop; |
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} |
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return $this->props[$key]; |
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} |
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/** |
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* @param array $props |
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* |
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* @return array |
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*/ |
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protected function properties(array $props): array |
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{ |
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foreach ($props as $key => $prop) |
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{ |
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$this->property($props, $key); |
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} |
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return $this->props; |
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} |
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/** |
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* @param array $types |
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* |
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* @return array |
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*/ |
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protected function types(array $types): array |
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{ |
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$results = []; |
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foreach ($types as $type) |
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{ |
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$results[] = $this->types[$type]; |
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} |
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return $results; |
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} |
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/** |
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* @param string $key |
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* |
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* @return string |
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*/ |
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protected function fragment(string $key): string |
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{ |
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$property = $this->props[$key] ?? $this->default; |
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return '(?<' . $key . '>(' . |
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implode('|', $this->types($property['types'])) . |
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'))'; |
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} |
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/** |
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* @param string $key |
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* @param array $syntax |
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* |
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* @return array |
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*/ |
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public function syntax2Array(string $key, array $syntax): array |
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{ |
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$props = $this->props[$key] ?? null; |
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$closed = $this->closed[$key] ?? false; |
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return Cache::get(__CLASS__ . $key, function () use ($syntax, $props, $closed) { |
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return [ |
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'syntax' => $syntax, |
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'props' => $props, |
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'closed' => $closed, |
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]; |
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}); |
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} |
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protected function tryLoad(string $key) |
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{ |
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if (empty($this->data[$key])) |
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{ |
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$item = Cache::getItem(__CLASS__ . $key); |
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if ($item && $item->isHit()) |
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{ |
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$_cache = $item->get(); |
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$this->data[$key] = $_cache['syntax']; |
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$this->props[$key] = $_cache['props']; |
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$this->closed[$key] = $_cache['closed']; |
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return $this->data[$key]; |
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} |
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} |
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return null; |
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} |
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/** |
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* @param string $key |
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* @param array $data |
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* |
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* @return array|mixed |
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*/ |
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protected function getLexemes(string $key, array $data) |
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{ |
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$syntax = $this->tryLoad($key); |
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if (empty($this->data[$key])) |
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{ |
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$syntax = $this->syntax($key, $data); |
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$this->syntax2Array($key, $syntax); |
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} |
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return $syntax; |
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} |
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/** |
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* @param string $key |
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* @param array $data |
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* |
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* @return array |
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*/ |
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protected function syntax(string $key, array $data) |
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{ |
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foreach ($data['directives'] ?? [] as $_key => $directive) |
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{ |
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$this->data($_key, $directive ?: []); |
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} |
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$this->closed[$key] = $data['closed'] ?? false; |
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$this->properties($data['properties'] ?? []); |
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$syntax = []; |
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foreach ($data['syntax'] ?? [] as $text) |
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{ |
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$tokens = $this->lexer()->tokens($text); |
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$vars = $tokens[Lexer::PRINTER] ?? []; |
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$code = \str_replace( |
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['\\(', '\\)', ','], |
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['\\( ', ' \\)', ' ,'], |
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$text |
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); |
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foreach ($vars as $var) |
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{ |
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$code = \str_replace( |
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$var['code'], |
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$this->fragment($var['fragment']), |
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$code |
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); |
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} |
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$syntax[] = [ |
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'vars' => $vars, |
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'regexp' => '~^' . $key . ' ' . $code . '$~ui' |
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]; |
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} |
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return $syntax; |
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} |
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/** |
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* @param string $key |
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* @param array|null $data |
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* |
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* @return array|bool|mixed |
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*/ |
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protected function get(string $key, array $data = null) |
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{ |
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/** |
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* @var $loader mixed |
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*/ |
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$loader = $this->loader($key) ?: $data; |
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if (null === $loader) |
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{ |
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return true; |
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} |
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$mixed = []; |
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if ($loader) |
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{ |
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$mixed = $loader; |
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if (\is_object($mixed)) |
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{ |
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$mixed = $loader->asArray(); |
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} |
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} |
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return $this->getLexemes($key, $mixed); |
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} |
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/** |
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* @param string $key |
345
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* |
346
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* @return bool |
347
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*/ |
348
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public function closed(string $key): bool |
349
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{ |
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11 |
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$this->data($key); |
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return $this->closed[$key] ?? false; |
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} |
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/** |
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* @param string $key |
357
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* @param array $data |
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* |
359
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* @return array|bool |
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*/ |
361
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11 |
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public function data(string $key, array $data = null) |
362
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{ |
363
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11 |
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$this->tryLoad($key); |
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365
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if (!\array_key_exists($key, $this->data)) |
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{ |
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$this->data[$key] = $this->get($key, $data); |
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} |
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return $this->data[$key]; |
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} |
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373
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/** |
374
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* @param string $value |
375
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* |
376
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* @return array |
377
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*/ |
378
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11 |
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public function lexerApply(string $value): array |
379
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{ |
380
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11 |
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$name = __FUNCTION__ . $value; |
381
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11 |
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$item = Cache::getItem($name); |
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383
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11 |
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if ($item && $item->isHit()) |
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{ |
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return $item->get(); |
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} |
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|
388
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11 |
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$value = '{{ ' . $value . ' }}'; |
389
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$tokens = $this->flow->lexer()->tokens($value); |
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$_lexer = \current($tokens[Lexer::PRINTER]); |
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392
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$store = [ |
393
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11 |
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'lexer' => $_lexer, |
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'code' => $this->flow->build($_lexer) |
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]; |
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397
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11 |
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return Cache::get($name, function () use ($store) { |
398
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11 |
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return $store; |
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11 |
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}); |
400
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} |
401
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|
402
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/** |
403
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* @param string $key |
404
|
|
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* @param string $tpl |
405
|
|
|
* |
406
|
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* @return array|null |
407
|
|
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*/ |
408
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11 |
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public function apply(string $key, string $tpl) |
409
|
|
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{ |
410
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11 |
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$lexData = $this->data($key); |
411
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11 |
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$data = null; |
412
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|
413
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11 |
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if (true === $lexData) |
414
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|
|
{ |
415
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return $data; |
416
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} |
417
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|
418
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11 |
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foreach ($lexData as $datum) |
419
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{ |
420
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11 |
|
if (\preg_match($datum['regexp'], $tpl, $outs)) |
421
|
|
|
{ |
422
|
11 |
|
$data = Arr::filter($outs, function (...$args) { |
423
|
11 |
|
return \is_string(\end($args)); |
424
|
11 |
|
}); |
425
|
|
|
|
426
|
11 |
|
$data = Arr::map($data, [$this, 'lexerApply']); |
427
|
11 |
|
break; |
428
|
|
|
} |
429
|
|
|
} |
430
|
|
|
|
431
|
11 |
|
return $data; |
432
|
|
|
} |
433
|
|
|
|
434
|
|
|
} |
435
|
|
|
|