symfony
diff --git a/‎src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
+17-23Lines changed: 17 additions & 23 deletions b/‎src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
+17-23Lines changed: 17 additions & 23 deletions
diff --git a/‎src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php
+19Lines changed: 19 additions & 0 deletions b/‎src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php
+19Lines changed: 19 additions & 0 deletions
@@ -17,6 +17,7 @@
 use Symfony\Component\Console\Question\ConfirmationQuestion;
 use Symfony\Component\Console\Question\Question;
 use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\Console\Formatter\OutputFormatter;
 
 /**
  * Symfony Style Guide compliant question helper.
@@ -52,42 +53,35 @@ public function ask(InputInterface $input, OutputInterface $output, Question $qu
      */
     protected function writePrompt(OutputInterface $output, Question $question)
     {
-        $text = $question->getQuestion();
+        $text = OutputFormatter::escape($question->getQuestion());
         $default = $question->getDefault();
 
-        switch (true) {
-            case null === $default:
-                $text = sprintf(' <info>%s</info>:', $text);
-
-                break;
-
-            case $question instanceof ConfirmationQuestion:
-                $text = sprintf(' <info>%s (yes/no)</info> [<comment>%s</comment>]:', $text, $default ? 'yes' : 'no');
-
-                break;
+        if ($question instanceof ConfirmationQuestion) {
+            $text = sprintf(' <info>%s (yes/no)</info>', $text);
+        } else {
+            $text = sprintf(' <info>%s</info>', $text);
+        }
 
-            case $question instanceof ChoiceQuestion && $question->isMultiselect():
+        if ($question instanceof ConfirmationQuestion) {
+            $default = $default ? 'yes' : 'no';
+        } elseif (null !== $default) {
+            if ($question instanceof ChoiceQuestion && $question->isMultiselect()) {
                 $choices = $question->getChoices();
                 $default = explode(',', $default);
 
                 foreach ($default as $key => $value) {
                     $default[$key] = $choices[trim($value)];
                 }
 
-                $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, implode(', ', $default));
-
-                break;
-
-            case $question instanceof ChoiceQuestion:
+                $default = implode(', ', $default);
+            } elseif ($question instanceof ChoiceQuestion && null !== $default) {
                 $choices = $question->getChoices();
-                $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $choices[$default]);
-
-                break;
-
-            default:
-                $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $default);
+                $default = $choices[$default];
+            }
         }
 
+        $text .= null === $default ? ':' : sprintf(' [<comment>%s</comment>]:', OutputFormatter::escape($default));
+
         $output->writeln($text);
 
         if ($question instanceof ChoiceQuestion) {
 
@@ -6,6 +6,7 @@
 use Symfony\Component\Console\Helper\HelperSet;
 use Symfony\Component\Console\Helper\SymfonyQuestionHelper;
 use Symfony\Component\Console\Output\StreamOutput;
+use Symfony\Component\Console\Question\Question;
 use Symfony\Component\Console\Question\ChoiceQuestion;
 
 /**
@@ -73,6 +74,24 @@ public function testAskChoice()
         $this->assertOutputContains('What is your favorite superhero? [Superman, Batman]', $output);
     }
 
+    public function testAskEscapeDefaultValue()
+    {
+        $helper = new SymfonyQuestionHelper();
+        $helper->setInputStream($this->getInputStream('\\'));
+        $helper->ask($this->createInputInterfaceMock(), $output = $this->createOutputInterface(), new Question('Can I have a backslash?', '\\'));
+
+        $this->assertOutputContains('Can I have a backslash? [\]', $output);
+    }
+
+    public function testAskEscapeLabel()
+    {
+        $helper = new SymfonyQuestionHelper();
+        $helper->setInputStream($this->getInputStream('sure'));
+        $helper->ask($this->createInputInterfaceMock(), $output = $this->createOutputInterface(), new Question('Do you want a \?'));
+
+        $this->assertOutputContains('Do you want a \?', $output);
+    }
+
     protected function getInputStream($input)
     {
         $stream = fopen('php://memory', 'r+', false);