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CSS modules

Hi.
If you want to use cssModules but don't want to load your json file each time your server get a request or you don't want to <?= $map['className'] ?> for each className or #id you can use this:

<?php
// @author     Pedro Costa < [email protected]  >

namespace library\View;

use Phalcon\Mvc\View\Engine\Volt;
use Phalcon\Mvc\View\Engine\Volt\Compiler;

class custom_compiler extends Compiler {

    private $_classMap = [];

    // all my classNames are in the same file.
    private function loadClassMap(){
            $str = file_get_contents(ROOT_DIR.'/build/classMap.json');
            $this->_classMap = json_decode($str, true); 
    }

    private function replaceClassNames(&$classNames){
        $this->loadClassMap();
        $newClassNames = [];
        // onlu one space
        $classNames = preg_replace(array('/\s{2,}/', '/[\t\n]/'), ' ', $classNames);
        $classNames = explode(" ", $classNames);
        foreach($classNames as $className){
            if(isset($this->_classMap[$className])){
                $newClassNames[] =$this->_classMap[$className];
            }else{
                $newClassNames[] =$className;
            }
        }

        return $classNames = implode(" ", $newClassNames);
        }

    protected function _compileSource($viewCode, $extendsMode = false){

        $viewCode = preg_replace_callback('/class=\"([^\"]+)\"/m', function ($matches) {
            return 'class="'.$this->replaceClassNames($matches[1]).'"';
        },$viewCode);

        $viewCode = preg_replace_callback('/id=\"([^\"]+)\"/m', function ($matches) {
            return 'id="'.$this->replaceClassNames($matches[1]).'"';
        },$viewCode);

        // form elementes form.render('name', ['class':'something', 'id':'somethingelese'])

        $viewCode = preg_replace_callback('/\'class\'[ ]?:[ ]?\'([^\"]+)\'/m', function ($matches) {
            return '"class":"'.$this->replaceClassNames($matches[1]).'"';
        },$viewCode);

        $viewCode = preg_replace_callback('/\'id\'[ ]?:[ ]?\'([^\"]+)\'/m', function ($matches) {
            return '"id":"'.$this->replaceClassNames($matches[1]).'"';
        },$viewCode);

        return parent:: _compileSource($viewCode, $extendsMode);
    }

}

class Engine extends Volt{

    function getCompiler() {

        $compiler = $this->_compiler;
        if (gettype($compiler != "object")) {

            /*if(APPLICATION_ENV === APP_PRODUCTION){*/
                $compiler = new custom_compiler($this->_view);
            /*}else{
                $compiler = new Compiler($this->_view);
            }*/

            /**
             * Pass the IoC to the compiler only of it's an object
             */
            $dependencyInjector = $this->_dependencyInjector;
            if (gettype($dependencyInjector) == "object") {
                $compiler->setDi($dependencyInjector);
            }

            /**
             * Pass the options to the compiler only if they're an array
             */
            $options = $this->_options;
            if (gettype($options) == "array") {
                $compiler->setOptions($options);
            }

            $this->_compiler = $compiler;
        }
        return $compiler;
    }
}

<div class="test multiclass globalClass" id="idTest"> => <div class="_24dw _w23 globalClass" id="_23d">

Hey its a very nicely explained CSS module. Thanks