'/\{([^#\/?_][^}\n]*?)\}/i', 'parentmatch'=>'/\{\.\.\/([^#\/?_][^}\n]*?)\}/i', 'each'=>'/\{#each ([^}]*)\}([\S\s]*)\{\/each \1\}/i', 'exist'=>'/\{#exist ([^}]*)\}([\S\s]*)\{\/exist \1\}/i', 'existelse'=>'/\{#exist ([^}]*)\}([\S\s]*)\{#else \1\}([\S\s]*)\{\/exist \1\}/i', 'ignore'=>'/\{#ignore\}([\S\s]*)\{\/ignore\}/i', 'ignored'=>'/\{#ignored (\d+?)\}/i', 'gettext'=>"/{_([^,}]+)(?:, ?([^},]+))*\}/i", 'gettext_string'=>'/^([\'"])(.+)\1$/i', 'echo'=>'/\{=([^}]+)\}/i', 'eval'=>'/\{\?([\W\w\S\s]+)\?\}/i', 'include'=>'/{#include ([^}]+)}/i' ]; protected static $parsers; private $template; private $name; private $path; public function __construct(string $name, string $template, bool $is_file = false){ if(is_null(static::$parsers)){ static::$parsers = [ 'ignore'=>function(&$output, &$ignored){ $output = preg_replace_callback(static::$regex['ignore'], function($matches) use(&$ignored){ $ignored[] = $matches[1]; return '{#ignored '.(count($ignored) - 1).'}'; }, $output); }, 'include'=>function(&$output, &$ignored = null){ $output = preg_replace_callback(static::$regex['include'], function($matches) use(&$ignored){ $path = static::$basedir.'/'.$matches[1]; if(file_exists($path)){ $output = file_get_contents($path); if(!is_null($ignored)){ static::$parsers['ignore']($output, $ignored); } return $output; } return ''; }, $output); }, 'each'=>[ function(&$output, $data){ $output = preg_replace_callback(static::$regex['each'], function($matches) use($data){ $output = ''; if(isset($data[$matches[1]])){ foreach($data[$matches[1]] as $item){ $output = static::parse($matches[2], $item); } } return $output; }, $output); }, function(&$output){ $output = preg_replace_callback(static::$regex['each'], function($matches){ $output = ""; $output .= static::compile($matches[2]); $output .= ""; return $output; }, $output); } ], 'existelse'=>[ function(&$output, $data){ $output = preg_replace_callback(static::$regex['existelse'], function($matches) use($data){ if(isset($data[$matches[1]])){ $output = static::parse($matches[2], $data); }else{ $output = static::parse($matches[3], $data); } return $output; }, $output); }, function(&$output){ $output = preg_replace_callback(static::$regex['existelse'], function($matches){ $output = ""; $output .= static::compile($matches[2]); $output .= ""; $output .= static::compile($matches[3]); $output .= ""; return $output; }, $output); } ], 'exist'=>[ function(&$output, $data){ $output = preg_replace_callback(static::$regex['exist'], function($matches) use($data){ if(isset($data[$matches[1]])){ return static::parse($data[$matches[2]], $data); } return ''; }, $output); }, function(&$output){ $output = preg_replace_callback(static::$regex['exist'], function($matches){ $output = ""; $output .= static::compile($matches[2]); $output .= ""; }, $output); } ], 'gettext'=>[ function(&$output, $data){ $output = preg_replace_callback(static::$regex['gettext'], function($matches) use($data){ $args = array_map(function($item) use($data){ if(preg_match(static::$regex['gettext_string'], $item)){ return preg_replace(static::$regex['gettext_string'], '\2', $item); }else{ return $data[$item] ?? ''; } }, array_slice($matches, 1)); return _(sprintf(...$args)); }, $output); }, function(&$output){ $output = preg_replace_callback(static::$regex['gettext'], function($matches){ if(count($matches) > 2){ $output = ""; }, $output); } ], 'echo'=>[ function(&$output){ $output = preg_replace_callback(static::$regex['echo'], function($matches){ return eval("return {$matches[1]};"); }, $output); }, function(&$output){ $output = preg_replace_callback(static::$regex['echo'], function($matches){ return ""; }, $output); } ], 'eval'=>[ function(&$output){ $output = preg_replace_callback(static::$regex['eval'], function($matches){ ob_start(); eval($matches[1]); $output = ob_get_contents(); ob_end_clean(); return $output; }, $output); }, function(&$output){ $output = preg_replace_callback(static::$regex['eval'], function($matches){ return ""; }, $output); } ], 'match'=>[ function(&$output, $data){ $output = preg_replace_callback(static::$regex['match'], function($matches) use($data){ return $data[$matches[1]] ?? ''; }, $output); }, function(&$output){ $output = preg_replace_callback(static::$regex['match'], function($matches){ return ""; }, $output); } ], 'parentmatch'=>[ function(&$output, $data){ throw new \Exception("Not supported in non-compiled templates"); }, function(&$output){ $output = preg_replace_callback(static::$regex['parentmatch'], function($matches){ return ""; }, $output); } ], 'ignored'=>function(&$output, $ignored){ $output = preg_replace_callback(static::$regex['ignored'], function($matches) use($ignored){ return htmlentities($ignored[(int)$matches[1]] ?? ''); }, $output); } ]; } if(isset(static::$templates[$name])){ throw new Exception("Template {$name} already exists"); } if($is_file){ $path = realpath($template); if(!file_exists($path)){ throw new Exception("Template file {$template} doesn't exist"); } $template = file_get_contents($path); } static::$parsers['include']($template); $this->template = $template; $this->name = $name; $this->path = static::$cachedir."/{$this->name}.".md5($this->template).'.php'; static::$templates[$name] = $this; } public function run(array $data) : string{ $data = EArray::from($data); if($this->fire('before', $data) === false){ throw new Exception("Render on template {$this->name} cancelled. Before."); } if(!file_exists($this->path)){ file_put_contents($this->path, static::compile($this->template)); } try{ $output = static::execute($this->path, $data); }catch(Exception $e){ file_put_contents($this->path, static::compile($this->template)); $output = static::execute($this->path, $data); } if($this->fire('after', $output) === false){ throw new Exception("Render on template {$this->name} cancelled. After"); } return (string)$output; } public static function from(string $name, array $data = []) : string{ $template = static::$templates[$name] ?? null; if(is_null($template)){ throw new Exception("Template {$name} does not exist"); } return $template->run($data); } public static function compile(string $template) : string{ $ignored = []; $output = $template; // Handle {#ignore code} static::$parsers['ignore']($output, $ignored); // Handle {#include path/to/file} static::$parsers['include']($output, $ignored); // Handle {#each name}{/each} static::$parsers['each'][1]($output); // Handle {#exist name}{#else}{/exist} static::$parsers['existelse'][1]($output); // Handle {#exist name}{/exist} static::$parsers['exist'][1]($output); // Handle {gettext} static::$parsers['gettext'][1]($output); // Handle {=expression} static::$parsers['echo'][1]($output); // Handle {? expression ?} static::$parsers['eval'][1]($output); // Handle {../name} static::$parsers['parentmatch'][1]($output); // Handle {name} static::$parsers['match'][1]($output); // Handle {#ignored i} static::$parsers['ignored']($output, $ignored); return $output; } public static function parse(string $template, $data) : string{ $ignored = []; $output = $template; // Handle {#ignore code} static::$parsers['ignore']($output, $ignored); // Handle {#include path/to/file} static::$parsers['include']($output, $ignored); // Handle {#each name}{/each} static::$parsers['each'][0]($output, $data); // Handle {#exist name}{#else}{/exist} static::$parsers['existelse'][0]($output, $data); // Handle {#exist name}{/exist} static::$parsers['exist'][0]($output, $data); // Handle {gettext} static::$parsers['gettext'][0]($output, $data); // Handle {=expression} static::$parsers['echo'][0]($output); // Handle {? expression ?} static::$parsers['eval'][0]($output); // Handle {../name} static::$parsers['parentmatch'][1]($output, $data); // Handle {name} static::$parsers['match'][0]($output, $data); // Handle {#ignored i} static::$parsers['ignored']($output, $ignored); return $output; } public static function execute(string $path, $data) : string{ ob_start(); include($path); $output = ob_get_contents(); ob_end_clean(); return $output; } } ?>