Extend Laravel Blade

blade.php

<?php namespace Blade\Extend;

/**
 * Added additional features for Laravel Blade template engine
 * https://gist.github.com/mayoz/6f70ef0366cc128ef977
 *
 * @package  Templates
 * @version  4.x
 * @author   Sercan Cakir <[email protected]>
 * @link     http://www.sercancakir.com
 * @license  GNU
 */

use Blade;

/**
 * Set variable in blade
 *
 * <code>
 *   {? $variable = "whatever" ?}
 * </code>
 *
 * @param  string
 * @param  Illuminate\View\Compilers\BladeCompiler
 * @return string
 */
Blade::extend(
    function($value, $blade) {
        return preg_replace('/\{\?(.+)\?\}/', '<?php ${1} ?>', $value);
    }
);

/**
 * Use break control structure in blade
 *
 * <code>
 *   @break
 * </code>
 *
 * @param  string
 * @param  Illuminate\View\Compilers\BladeCompiler
 * @return string
 */
Blade::extend(
    function($value, $blade) {
        $pattern = $blade->createPlainMatcher('break');
        return preg_replace($pattern, '$1<?php break; ?>$2', $value);
    }
);

/**
 * Use continue control structure in blade
 *
 * <code>
 *   @continue
 * </code>
 *
 * @param  string
 * @param  Illuminate\View\Compilers\BladeCompiler
 * @return string
 */
Blade::extend(
    function($value, $blade) {
        $pattern = $blade->createPlainMatcher('continue');
        return preg_replace('/(\s*)@continue(\s*)/', '$1<?php continue; ?>$2', $value);
    }
);

/**
 * Use continue control structure in blade
 *
 * <code>
 *   @foreach($items as $item)
 *     <div class="{{ @choice('odd', 'even') }}">
 *       ...
 *     </div>
 *   @endforeach
 * </code>
 *
 * @param  string
 * @return string
 */

Blade::extend(
    function($value, $blade) {
        $pattern = $blade->createMatcher('choice');
        return preg_replace($pattern, "$1Blade\Extend\Choice::init$2;", $value);
    }
);


/**
 * Choice class
 *
 * @author   Sercan Cakir <[email protected]>
 * @link     http://laravel.com
 * @license  GNU
 */
class Choice {

    /**
     * Keep data and some secret variable
     *
     * @access private
     * @var array
     */
    private static $data = [];

    /**
     * Get current index and increment index
     *
     * @access private
     * @param  string  $index
     * @return string
     */
    private static function get($index)
    {
        $current = self::$data[$index]['index']++;

        if (self::$data[$index]['index'] > self::$data[$index]['total'] - 1) {
            self::$data[$index]['index'] = 0;
        }

        return self::$data[$index]['args'][$current];
    }

    /**
     * Init static alternator class
     *
     * @param  array  $param, $param...
     * @see    self::get
     * @see    http://www.php.net/manual/en/function.debug-backtrace.php
     * @return string
     */
    public static function init()
    {
        $trace  = debug_backtrace();
        $caller = array_shift($trace);
        $index  = $caller['file'].$caller['line'];

        if (!isset(self::$data[$index])) {
            self::$data[$index] = array(
                'args'  => func_get_args(),
                'index' => 0,
                'total' => func_num_args(),
            );

            return self::get($index);
        }

        return self::get($index);
    }

}