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PatternEngine.php
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81 lines (60 loc) · 1.67 KB
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<?php
/*!
* Pattern Engine Class
*
* Copyright (c) 2014 Dave Olsen, http://dmolsen.com
* Licensed under the MIT license
*
* Set-up the selected pattern engine
*
*/
namespace PatternLab;
use \PatternLab\Config;
use \PatternLab\Console;
use \PatternLab\Timer;
class PatternEngine {
protected static $rules = array();
protected static $instance;
/**
* Get an instance of the Pattern Engine
*/
public static function getInstance() {
return self::$instance;
}
/**
* Load a new instance of the Pattern Loader
*/
public static function init() {
$found = false;
$patternExtension = Config::getOption("patternExtension");
self::loadRules();
foreach (self::$rules as $rule) {
if ($rule->test($patternExtension)) {
self::$instance = $rule;
$found = true;
break;
}
}
if (!$found) {
Console::writeError("the supplied pattern extension didn't match a pattern loader rule. check your config...");
}
}
/**
* Load all of the rules related to Pattern Engines. They're located in the plugin dir
*/
public static function loadRules() {
// default var
$configDir = Config::getOption("configDir");
// make sure the pattern engine data exists
if (file_exists($configDir."/patternengines.json")) {
// get pattern engine list data
$patternEngineList = json_decode(file_get_contents($configDir."/patternengines.json"), true);
// get the pattern engine info
foreach ($patternEngineList["patternengines"] as $patternEngineName) {
self::$rules[] = new $patternEngineName();
}
} else {
Console::writeError("The pattern engines list isn't available in <path>".$configDir."</path>...");
}
}
}