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Editing: functions.php

<?php

/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2014 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

use Assetic\Factory\AssetFactory;
use Assetic\Util\TraversableString;

if (function_exists('assetic_init')) {
    return;
}

/**
 * Initializes the global Assetic object.
 *
 * @param AssetFactory $factory The asset factory
 */
function assetic_init(AssetFactory $factory)
{
    global $_assetic;

$_assetic = new stdClass();
    $_assetic->factory = $factory;
}

/**
 * Returns an array of javascript URLs.
 *
 * @param array|string $inputs  Input strings
 * @param array|string $filters Filter names
 * @param array        $options An array of options
 *
 * @return array An array of javascript URLs
 */
function assetic_javascripts($inputs = array(), $filters = array(), array $options = array())
{
    if (!isset($options['output'])) {
        $options['output'] = 'js/*.js';
    }

return _assetic_urls($inputs, $filters, $options);
}

/**
 * Returns an array of stylesheet URLs.
 *
 * @param array|string $inputs  Input strings
 * @param array|string $filters Filter names
 * @param array        $options An array of options
 *
 * @return array An array of stylesheet URLs
 */
function assetic_stylesheets($inputs = array(), $filters = array(), array $options = array())
{
    if (!isset($options['output'])) {
        $options['output'] = 'css/*.css';
    }

return _assetic_urls($inputs, $filters, $options);
}

/**
 * Returns an image URL.
 *
 * @param string       $input   An input
 * @param array|string $filters Filter names
 * @param array        $options An array of options
 *
 * @return string An image URL
 */
function assetic_image($input, $filters = array(), array $options = array())
{
    if (!isset($options['output'])) {
        $options['output'] = 'images/*';
    }

$urls = _assetic_urls($input, $filters, $options);

return current($urls);
}

/**
 * Returns an array of asset urls.
 *
 * @param array|string $inputs  Input strings
 * @param array|string $filters Filter names
 * @param array        $options An array of options
 *
 * @return array An array of URLs
 */
function _assetic_urls($inputs = array(), $filters = array(), array $options = array())
{
    global $_assetic;

if (!is_array($inputs)) {
        $inputs = array_filter(array_map('trim', explode(',', $inputs)));
    }

if (!is_array($filters)) {
        $filters = array_filter(array_map('trim', explode(',', $filters)));
    }

$coll = $_assetic->factory->createAsset($inputs, $filters, $options);

$debug = isset($options['debug']) ? $options['debug'] : $_assetic->factory->isDebug();
    $combine = isset($options['combine']) ? $options['combine'] : !$debug;

$one = $coll->getTargetPath();
    if ($combine) {
        $many = array($one);
    } else {
        $many = array();
        foreach ($coll as $leaf) {
            $many[] = $leaf->getTargetPath();
        }
    }

return new TraversableString($one, $many);
}