bug #12411 [VarDumper] Use Unicode Control Pictures (nicolas-grekas)

This PR was merged into the 2.6-dev branch. Discussion ---------- [VarDumper] Use Unicode Control Pictures | Q | A | ------------- | --- | Bug fix? | yes | New feature? | no | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | - | License | MIT | Doc PR | - I wasn't satisfied with how control chars where dumped, until I found the [Unicode Control Pictures](http://www.unicode.org/charts/PDF/U2400.pdf). This PR takes advantage of them: ![capture du 2014-11-04 10 52 15](https://cloud.githubusercontent.com/assets/243674/4897678/752fac20-6408-11e4-9186-7b788c9a88bb.png) Commits ------- 6258ae8 [DebugBundle] remove README.md 50021bd [Debug] No gc_collect_cycles(), it's costly and can segfault b592e90 [VarDumper] inline dump() function loading cd076e4 [VarDumper] Use Unicode Control Pictures
symfony · Nov 9, 2014 · ad74db9 · ad74db9
2 parents 5d8fbb8 + 6258ae8
commit ad74db9
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Showing 8 changed files with 23 additions and 28 deletions.
diff --git a/UPGRADE-2.6.md b/UPGRADE-2.6.md
@@ -349,3 +349,18 @@ OptionsResolver
    // throws InvalidOptionsException
    $resolver->resolve(array('port' => '25'));
    ```
+
+VarDumper and DebugBundle
+-------------------------
+
+The component and the bundle are new to Symfony 2.6. We encourage you
+to enable the bundle in your `app/AppKernel.php` for the *dev* or *test*
+environments. Just add this line before loading the `WebProfilerBundle`:
+
+    ```php
+    $bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
+    ```
+
+Then enjoy dumping variables by calling `dump($var)` anywhere in your PHP
+and `{% dump var %}` or `{{ dump(var) }}` in Twig. Dumps are displayed
+**in the web debug toolbar**.
diff --git a/src/Symfony/Bundle/DebugBundle/README.md b/src/Symfony/Bundle/DebugBundle/README.md
diff --git a/src/Symfony/Component/Debug/ErrorHandler.php b/src/Symfony/Component/Debug/ErrorHandler.php
@@ -487,7 +487,6 @@ public function handleException(\Exception $exception, array $error = null)
     public static function handleFatalError(array $error = null)
     {
         self::$reservedMemory = '';
-        gc_collect_cycles();
         $handler = set_error_handler('var_dump', 0);
         $handler = is_array($handler) ? $handler[0] : null;
         restore_error_handler();

diff --git a/src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php b/src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php
@@ -84,7 +84,6 @@ abstract class AbstractCloner implements ClonerInterface
     protected $maxString = -1;
 
     private $casters = array();
-    private $data = array(array(null));
     private $prevErrorHandler;
     private $classInfo = array();
 

diff --git a/src/Symfony/Component/VarDumper/Dumper/CliDumper.php b/src/Symfony/Component/VarDumper/Dumper/CliDumper.php
@@ -331,7 +331,7 @@ protected function dumpKey(Cursor $cursor)
             }
 
             if ($cursor->hardRefTo) {
-                $this->line .= $this->style('ref', '&'.$cursor->hardRefTo, array('count' => $cursor->hardRefCount)).' ';
+                $this->line .= $this->style('ref', '&'.($cursor->hardRefCount ? $cursor->hardRefTo : ''), array('count' => $cursor->hardRefCount)).' ';
             }
         }
     }

diff --git a/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php b/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php
@@ -35,7 +35,7 @@ class HtmlDumper extends CliDumper
         'num' => 'font-weight:bold; color:#1299DA',
         'const' => 'font-weight:bold',
         'str' => 'font-weight:bold; color:#56DB3A',
-        'cchr' => 'font-style:italic',
+        'cchr' => 'color:#FF8400',
         'note' => 'color:#1299DA',
         'ref' => 'color:#A0A0A0',
         'public' => 'color:#FFFFFF',
@@ -319,7 +319,8 @@ protected function style($style, $value, $attr = array())
 
         $v = htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
         $v = preg_replace_callback(self::$controlCharsRx, function ($r) {
-            return sprintf('<span class=sf-dump-cchr title=\\x%02X>%s</span>', ord($r[0]), "\x7F" === $r[0] ? '?' : chr(64 + ord($r[0])));
+            // Use Unicode Control Pictures - see http://www.unicode.org/charts/PDF/U2400.pdf
+            return sprintf('<span class=sf-dump-cchr title=\\x%02X>&#%d;</span>', ord($r[0]), "\x7F" !== $r[0] ? 0x2400 + ord($r[0]) : 0x2421);
         }, $v);
 
         if ('ref' === $style) {

diff --git a/src/Symfony/Component/VarDumper/Tests/HtmlDumperTest.php b/src/Symfony/Component/VarDumper/Tests/HtmlDumperTest.php
@@ -62,7 +62,7 @@ public function testGet()
   <span class=sf-dump-key>5</span> => <span class=sf-dump-num>-INF</span>
   <span class=sf-dump-key>6</span> => <span class=sf-dump-num>{$intMax}</span>
   "<span class=sf-dump-key>str</span>" => "<span class=sf-dump-str title="4 characters">d&#233;j&#224;</span>"
-  <span class=sf-dump-key>7</span> => b"<span class=sf-dump-str title="2 binary or non-UTF-8 characters">&#233;<span class=sf-dump-cchr title=\\x00>@</span></span>"
+  <span class=sf-dump-key>7</span> => b"<span class=sf-dump-str title="2 binary or non-UTF-8 characters">&#233;<span class=sf-dump-cchr title=\\x00>&#9216;</span></span>"
   "<span class=sf-dump-key>[]</span>" => []
   "<span class=sf-dump-key>res</span>" => <abbr title="`stream` resource" class=sf-dump-note>:stream</abbr> {<a class=sf-dump-ref>@{$res1}</a><samp>
     <span class=sf-dump-meta>wrapper_type</span>: "<span class=sf-dump-str title="9 characters">plainfile</span>"

diff --git a/src/Symfony/Component/VarDumper/VarDumper.php b/src/Symfony/Component/VarDumper/VarDumper.php
@@ -15,6 +15,9 @@
 use Symfony\Component\VarDumper\Dumper\CliDumper;
 use Symfony\Component\VarDumper\Dumper\HtmlDumper;
 
+// Load the global dump() function
+require_once __DIR__.'/Resources/functions/dump.php';
+
 /**
  * @author Nicolas Grekas <p@tchwork.com>
  */