feat: Поддержка psr4. Кеширование шаблона

.gitignore

@@ -2,3 +2,4 @@
 node_modules
 temp
 /vendor/
+/examples/cache

README.md

@@ -4,13 +4,13 @@
 
 # Переменные
 
-Для переменной name=Андрей шаблон
+Для переменной name=Ivan шаблон
 ```html
 <b>Hello, {{ name }}</div>
 ```
 преобразуется в 
 ```html
-<b>Hello, Андрей</div>
+<b>Hello, Ivan</div>
 ```
 
 ```html
@@ -18,7 +18,7 @@
 ```
 преобразуется в 
 ```html
-<b>Hello, <!-- Андрей --></div>
+<b>Hello, <!-- Ivan --></div>
 ```
 
 # Циклы

composer.json

@@ -2,15 +2,10 @@
     "name": "ctiso/klein",
     "description": "simple template engine",
     "license": "MIT",
-    "authors": [
+    "authors": [],
-        {
-            "name": "Phedor Podlesnov",
-            "email": "phedor@edu.yar.ru"
-        }
-    ],
     "autoload": {
-       "psr-0": {
+       "psr-4": {
-            "Klein": ""
+            "ctiso\\": "src/"
         }
     },
     "require": {}

examples/example.php

@@ -1,14 +1,16 @@
 <?php
 
-require_once '../Klein.php';
+require_once '../src/Klein.php';
+
+use ctiso\Klein;
 
 function title($x) {
     return ucfirst($x);
 }
 
-$tpl = new Klein('tempalte.html');
+$tpl = new Klein(__DIR__ . '/cache');
 
-echo $tpl->render([
+echo $tpl->render('template.html', [
     'pagename' => 'awesome people',
     'authors' => [['name' => 'Paul', 'age' => 10], ['name' => 'Jim', 'age' => 11], ['name' => 'Jane', 'age' => 12]],
     'city'=> [

examples/example2.php

@@ -1,11 +1,14 @@
 <?php
 
+require_once '../Klein.php';
+use ctiso\Klein;
+
 $data = [
     [
         'id' => 0,
         'id_table' => 0,
         'name' => '',
-	    'header' => 'Наименование муниципального образования',
+        'header' => 'Header #1',
         'comment' => '',
         'colspan' => 0,
         'rowspan' => 4,
@@ -18,7 +21,7 @@ $data = [
         'id_table' => 0,
         'name' => '',
         'header' => '',
-    	'comment' => 'Над строкой - Прибыло всего (взрослых и детей)',
+        'comment' => 'Header #2',
         'rowspan' => 0,
         'row' => 0,
         'position' => 1,
@@ -27,8 +30,5 @@ $data = [
 ];
 
 
-require_once '../Klein.php';
+$tpl = new Klein(__DIR__ . '/cache');
-
+echo $tpl->render('template2.html'. ['content' => $data]);
-$tpl = new Klein('template2.html');
-
-echo $tpl->render(['content' => $data]);

examples/example3.php

@@ -1,9 +1,10 @@
 <?php
 
+require_once '../Klein.php';
+use ctiso\Klein;
+
 $data = ['phedor', 'andrey'];
 
-require_once '../Klein.php';
+$tpl = new Klein(__DIR__ . '/cache');
 
-$tpl = new Klein('template3.html');
+echo $tpl->render('template3.html', ['names' => $data]);
-
-echo $tpl->render(['names' => $data]);

examples/example4.php

@@ -1,12 +1,13 @@
 <?php
 
 require_once '../Klein.php';
+use ctiso\Klein;
 
 function title($x) {
     return ucfirst($x);
 }
 
-$tpl = new Klein('template.html');
+$tpl = new Klein(__DIR__ . '/cache');
 
 $u1 = new stdClass();
 $u1->name = 'Paul';
@@ -20,7 +21,7 @@ $u3 = new stdClass();
 $u3->name = 'Jane';
 $u3->age = 12;
 
-echo $tpl->render([
+echo $tpl->render('template.html', [
     'pagename' => 'awesome people',
     'authors' => [$u1, $u2, $u3],
     'city'=> [

src/Klein.php

@@ -1,9 +1,18 @@
 <?php
 
-class Klein {
+namespace ctiso;
-    public $code;
 
-    function __construct($html) {
+class Klein {
+    private $cache;
+
+    function __construct($cache) {
+        $this->cache = $cache;
+        if (!file_exists($cache)) {
+            mkdir($cache, 0777, true);
+        }
+    }
+
+    function compile($html, $target, $hash) {
         $pattern = array_map(function ($grammar) {
             list(, $result) = $grammar;
             $body = strtr($grammar[0], [' ' => "\s*", '+' => "\s+", ':var' => "(\w+(\s*\.\s*\w+)*)", ':id' => "(\w+)", '{{' => "{{\!?"]);
@@ -15,7 +24,7 @@ class Klein {
                                 $list = preg_split('/\.\s*/', $s);
                                 $first = array_shift($list);
                                 
-                                return count($list) > 0 ? "Klein::get(".$pref.$first.", [".implode(",", array_map(function ($x) { return "'$x'"; }, $list))."])" : $pref.$first; 
+                                return count($list) > 0 ? "Klein::get(".$pref.$first.", [".implode(",", array_map(fn ($x) => "'$x'", $list))."])" : $pref.$first; 
                             }, preg_split("/\s*,\s*/", $x[$s[1]])));
                         }, $result) . " ?>";
                     return ($x[0][2] == '!') ? "<!-- $code -->" : $code;
@@ -38,22 +47,17 @@ class Klein {
             ["{% endmacro %}", "}"]
         ]);
 
-        $result = file_get_contents($html);
+        $result = "<?php namespace tpl_$hash;\nuse ctiso\Klein; ?>" .file_get_contents($html);
         foreach($pattern as $arg) {
             $result = preg_replace_callback($arg[0], $arg[1], $result);
         }
-
+        file_put_contents($target, $result);
-        $this->code = $result;
     }
 
     static function get($arr, $items) {
         $result = $arr;
         foreach ($items as $key) {
-            if (is_array($result)) {
+            $result = (is_array($result)) ? $result[$key] ?? null : $result->{$key} ?? null;
-                $result = isset($result[$key]) ? $result[$key] : null;
-            } else {
-                $result = isset($result->{$key}) ? $result->{$key} : null;
-            }
         }
         return $result;
     }
@@ -66,10 +70,16 @@ class Klein {
             , 'even' => $is_even];
     }
 
-    function render($vars) {
+    function render($html, $vars) {    
+        $hash = md5($html . filemtime($html));
+        $target = $this->cache . '/tpl_' . $hash . '.php';
+        if (!file_exists($target)) {
+            $this->compile($html, $target, $hash);
+        }
+    
         extract($vars);
         ob_start();
-        eval(" ?>".$this->code."<?php ");
+        include($target);
         return ob_get_clean();
     }
 }