From d42607998482e36865c1d8a443f92a457f6b2f3b Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Sat, 15 Mar 2014 15:11:12 -0300
Subject: Squashed 'mod/minify/' content from commit 5949018

git-subtree-dir: mod/minify
git-subtree-split: 594901859d5afc1fa364322428bd7a6d5c6a3f96
---
 vendors/min/lib/Minify/YUICompressor.php | 139 +++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 vendors/min/lib/Minify/YUICompressor.php

(limited to 'vendors/min/lib/Minify/YUICompressor.php')

diff --git a/vendors/min/lib/Minify/YUICompressor.php b/vendors/min/lib/Minify/YUICompressor.php
new file mode 100644
index 000000000..7cb61adbe
--- /dev/null
+++ b/vendors/min/lib/Minify/YUICompressor.php
@@ -0,0 +1,139 @@
+<?php
+/**
+ * Class Minify_YUICompressor 
+ * @package Minify
+ */
+
+/**
+ * Compress Javascript/CSS using the YUI Compressor
+ * 
+ * You must set $jarFile and $tempDir before calling the minify functions.
+ * Also, depending on your shell's environment, you may need to specify
+ * the full path to java in $javaExecutable or use putenv() to setup the
+ * Java environment.
+ * 
+ * <code>
+ * Minify_YUICompressor::$jarFile = '/path/to/yuicompressor-2.3.5.jar';
+ * Minify_YUICompressor::$tempDir = '/tmp';
+ * $code = Minify_YUICompressor::minifyJs(
+ *   $code
+ *   ,array('nomunge' => true, 'line-break' => 1000)
+ * );
+ * </code>
+ * 
+ * @todo unit tests, $options docs
+ * 
+ * @package Minify
+ * @author Stephen Clay <steve@mrclay.org>
+ */
+class Minify_YUICompressor {
+
+    /**
+     * Filepath of the YUI Compressor jar file. This must be set before
+     * calling minifyJs() or minifyCss().
+     *
+     * @var string
+     */
+    public static $jarFile = null;
+    
+    /**
+     * Writable temp directory. This must be set before calling minifyJs()
+     * or minifyCss().
+     *
+     * @var string
+     */
+    public static $tempDir = null;
+    
+    /**
+     * Filepath of "java" executable (may be needed if not in shell's PATH)
+     *
+     * @var string
+     */
+    public static $javaExecutable = 'java';
+    
+    /**
+     * Minify a Javascript string
+     * 
+     * @param string $js
+     * 
+     * @param array $options (verbose is ignored)
+     * 
+     * @see http://www.julienlecomte.net/yuicompressor/README
+     * 
+     * @return string 
+     */
+    public static function minifyJs($js, $options = array())
+    {
+        return self::_minify('js', $js, $options);
+    }
+    
+    /**
+     * Minify a CSS string
+     * 
+     * @param string $css
+     * 
+     * @param array $options (verbose is ignored)
+     * 
+     * @see http://www.julienlecomte.net/yuicompressor/README
+     * 
+     * @return string 
+     */
+    public static function minifyCss($css, $options = array())
+    {
+        return self::_minify('css', $css, $options);
+    }
+    
+    private static function _minify($type, $content, $options)
+    {
+        self::_prepare();
+        if (! ($tmpFile = tempnam(self::$tempDir, 'yuic_'))) {
+            throw new Exception('Minify_YUICompressor : could not create temp file.');
+        }
+        file_put_contents($tmpFile, $content);
+        exec(self::_getCmd($options, $type, $tmpFile), $output);
+        unlink($tmpFile);
+        return implode("\n", $output);
+    }
+    
+    private static function _getCmd($userOptions, $type, $tmpFile)
+    {
+        $o = array_merge(
+            array(
+                'charset' => ''
+                ,'line-break' => 5000
+                ,'type' => $type
+                ,'nomunge' => false
+                ,'preserve-semi' => false
+                ,'disable-optimizations' => false
+            )
+            ,$userOptions
+        );
+        $cmd = self::$javaExecutable . ' -jar ' . escapeshellarg(self::$jarFile)
+             . " --type {$type}"
+             . (preg_match('/^[a-zA-Z\\-]+$/', $o['charset']) 
+                ? " --charset {$o['charset']}" 
+                : '')
+             . (is_numeric($o['line-break']) && $o['line-break'] >= 0
+                ? ' --line-break ' . (int)$o['line-break']
+                : '');
+        if ($type === 'js') {
+            foreach (array('nomunge', 'preserve-semi', 'disable-optimizations') as $opt) {
+                $cmd .= $o[$opt] 
+                    ? " --{$opt}"
+                    : '';
+            }
+        }
+        return $cmd . ' ' . escapeshellarg($tmpFile);
+    }
+    
+    private static function _prepare()
+    {
+        if (! is_file(self::$jarFile) 
+            || ! is_dir(self::$tempDir)
+            || ! is_writable(self::$tempDir)
+        ) {
+            throw new Exception('Minify_YUICompressor : $jarFile and $tempDir must be set.');
+        }
+    }
+}
+
-- 
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