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@@ -8,6 +8,7 @@
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class Template {
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use Events;
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private static $templates = [];
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+ public static $cachedir;
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private static $regex = [
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'match'=>'/\{([^#\/][^}\n]+?)\}/i',
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'each'=>'/\{#each ([^}]*)\}([\S\s]*)\{\/each\}/i',
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@@ -16,10 +17,13 @@
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'ignore'=>'/\{#ignore\}([\S\s]*)\{\/ignore\}/i',
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'ignored'=>'/\{#ignored (\d+?)\}/i',
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'gettext'=>"/{_([^,}]+)(?:, ?([^},]+))*\}/i",
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- 'gettext_string'=>'/^([\'"])(.+)\1$/i'
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+ 'gettext_string'=>'/^([\'"])(.+)\1$/i',
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+ 'echo'=>'/\{=([^}]+)\}/i',
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+ 'eval'=>'/\{\?([\W\w\S\s]+)\?\}/i'
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];
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private $template;
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private $name;
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+ private $path;
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public function __construct(string $name, string $template, bool $is_file = false){
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if(isset(static::$templates[$name])){
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throw new Exception("Template {$name} already exists");
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@@ -33,6 +37,7 @@
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}
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$this->template = $template;
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$this->name = $name;
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+ $this->path = static::$cachedir."/{$this->name}.".md5($this->template).'.php';
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static::$templates[$name] = $this;
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}
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public function run(array $data) : string{
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@@ -40,7 +45,10 @@
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if($this->fire('before', $data) === false){
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throw new Exception("Render on template {$this->name} cancelled. Before.");
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}
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- $output = static::parse($this->template, $data);
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+ if(!file_exists($this->path)){
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+ file_put_contents($this->path, static::compile($this->template));
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+ }
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+ $output = static::execute($this->path, $data);
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if($this->fire('after', $output) === false){
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throw new Exception("Render on template {$this->name} cancelled. After");
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}
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@@ -53,7 +61,68 @@
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}
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return $template->run($data);
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}
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- public static function parse(string $template, $data){
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+ public static function compile(string $template) : string{
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+ $ignored = [];
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+ // Handle {#ignore code}
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+ $output = preg_replace_callback(static::$regex['ignore'], function($matches) use(&$ignored){
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+ $ignored[] = $matches[1];
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+ return '{#ignored '.(count($ignored) - 1).'}';
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+ }, $template);
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+ // Handle {#each name}{/each}
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+ $output = preg_replace_callback(static::$regex['each'], function($matches){
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+ $output = "<?php if(isset(\$data[".var_export($matches[1], true)."])): ";
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+ $output .= "foreach(\$data[".var_export($matches[1], true)."] as \$item): ";
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+ $output .= "\$parent = \$data; ?>";
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+ $output .= static::compile($matches[2]);
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+ $output .= "<?php \$data = \$parent;";
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+ $output .= "endforeach;endif; ?>";
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+ return $output;
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+ }, $output);
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+ // Handle {#exist name}{#else}{/exist}
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+ $output = preg_replace_callback(static::$regex['existelse'], function($matches){
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+ $output = "<?php if(isset(\$data[".var_export($matches[1], true)."])): ?>";
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+ $output .= static::compile($matches[2]);
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+ $output .= "<php else: ?>";
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+ $output .= static::compile($matches[3]);
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+ $output .= "<?php endif; ?>";
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+ return $output;
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+ }, $output);
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+ // Handle {#exist name}{/exist}
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+ $output = preg_replace_callback(static::$regex['exist'], function($matches){
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+ $output = "<?php if(isset(\$data[".var_export($matches[1], true)."])): ?>";
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+ $output .= static::compile($matches[2]);
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+ $output .= "<?php endif; ?>";
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+ }, $output);
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+ // Handle {gettext}
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+ $output = preg_replace_callback(static::$regex['gettext'], function($matches){
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+ $output = "<?= _(sprintf(";
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+ foreach(array_slice($matches, 1) as $item){
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+ if(preg_match(static::$regex['gettext_string'], $item)){
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+ $output .= $item;
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+ }else{
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+ $output .= "(\$data['{$item}'] ?? '')";
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+ }
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+ }
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+ return "{$output})); ?>";
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+ }, $output);
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+ // Handle {=expression}
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+ $output = preg_replace_callback(static::$regex['echo'], function($matches){
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+ return "<?= {$matches[1]}; ?>";
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+ }, $output);
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+ // Handle {? expression ?}
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+ $output = preg_replace_callback(static::$regex['eval'], function($matches){
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+ return "<?php {$matches[1]}; ?>";
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+ }, $output);
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+ // Handle {name}
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+ $output = preg_replace_callback(static::$regex['match'], function($matches){
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+ return "<?=(\$data[".var_export($matches[1], true)."] ?? ''); ?>";
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+ }, $output);
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+ // Handle {#ignored i}
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+ return preg_replace_callback(static::$regex['ignored'], function($matches) use(&$ignored){
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+ return htmlentities($ignored[(int)$matches[1]] ?? '');
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+ }, $output);
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+ }
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+ public static function parse(string $template, $data) : string{
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$ignored = [];
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// Handle {#ignore code}
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$output = preg_replace_callback(static::$regex['ignore'], function($matches) use(&$ignored){
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@@ -97,13 +166,33 @@
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}, array_slice($matches, 1));
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return _(sprintf(...$args));
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}, $output);
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+ // Handle {=expression}
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+ $output = preg_replace_callback(static::$regex['echo'], function($matches) use($data){
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+ return eval("return {$matches[1]};");
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+ }, $output);
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+ // Handle {? expression ?}
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+ $output = preg_replace_callback(static::$regex['eval'], function($matches) use($data){
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+ ob_start();
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+ eval($matches[1]);
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+ $output = ob_get_contents();
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+ ob_end_clean();
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+ return $output;
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+ }, $output);
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// Handle {name}
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$output = preg_replace_callback(static::$regex['match'], function($matches) use($data){
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return $data[$matches[1]] ?? '';
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}, $output);
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+ // Handle {#ignored i}
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return preg_replace_callback(static::$regex['ignored'], function($matches) use(&$ignored){
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return $ignored[(int)$matches[1]] ?? '';
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}, $output);
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}
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+ public static function execute(string $path, $data) : string{
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+ ob_start();
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+ include($path);
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+ $output = ob_get_contents();
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+ ob_end_clean();
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+ return $output;
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+ }
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}
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?>
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