73 lines
1.8 KiB
PHP
73 lines
1.8 KiB
PHP
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<?php
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namespace Rails\Assets\Parser;
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use Rails\Assets\Exception;
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use Rails;
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class PHParser
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{
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static protected $instance;
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protected $file;
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static public function parseContents($contents, $file)
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{
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if (!self::$instance) {
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self::$instance = new self($file);
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}
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return self::$instance->parse($contents);
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}
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public function __construct($file)
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{
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$this->file = $file;
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}
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public function parse($contents)
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{
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ob_start();
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eval('?>' . $contents);
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return ob_get_clean();
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}
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/**
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* Returns relative paths.
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*/
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protected function assetPath($file, array $options = [])
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{
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$root = \Rails::application()->router()->rootPath();
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if ($root == '/') {
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$root = '';
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}
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$path = Rails::assets()->prefix() . '/' . $file;
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return $this->getRelativePath($this->file->url(), $path);
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}
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# SO: /a/12236654/638668
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protected function getRelativePath($from, $to)
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{
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$from = str_replace('\\', '/', $from);
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$to = str_replace('\\', '/', $to);
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$from = explode('/', $from);
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$to = explode('/', $to);
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$relPath = $to;
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foreach($from as $depth => $dir) {
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if($dir === $to[$depth]) {
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array_shift($relPath);
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} else {
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$remaining = count($from) - $depth;
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if($remaining > 1) {
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$padLength = (count($relPath) + $remaining - 1) * -1;
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$relPath = array_pad($relPath, $padLength, '..');
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break;
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} else {
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$relPath[0] = './' . $relPath[0];
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}
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}
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}
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return implode('/', $relPath);
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}
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}
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