From 92a7b3ae2241b862e9bf45e0af3cf53ebdfb0afb Mon Sep 17 00:00:00 2001
From: Robin Dupret <robin.dupret@gmail.com>
Date: Sun, 25 Mar 2018 15:05:16 +0200
Subject: [PATCH] Fix a segfault with StripDown and the `:quote` option

Since the `StripDown` render extends from `Base`, every available
callback should be defined to avoid segmentation faults since the
C code assumes that it **doesn't** deal with a `Base` object.

Fixes #639.
---
 CHANGELOG.md                  | 5 +++++
 lib/redcarpet/render_strip.rb | 2 +-
 test/stripdown_render_test.rb | 8 ++++++++
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 590fb291..eafa26d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+* Fix a segfault rendering quotes using `StripDown` and the `:quote`
+  option.
+
+  Fixes #639.
+
 * Fix `warning: instance variable @options not initialized` when
   running under verbose mode (`-w`, `$VERBOSE = true`).
 
diff --git a/lib/redcarpet/render_strip.rb b/lib/redcarpet/render_strip.rb
index 769d72a3..415af399 100644
--- a/lib/redcarpet/render_strip.rb
+++ b/lib/redcarpet/render_strip.rb
@@ -13,7 +13,7 @@ class StripDown < Base
         :autolink, :codespan, :double_emphasis,
         :emphasis, :underline, :raw_html,
         :triple_emphasis, :strikethrough,
-        :superscript, :highlight,
+        :superscript, :highlight, :quote,
 
         # footnotes
         :footnotes, :footnote_def, :footnote_ref,
diff --git a/test/stripdown_render_test.rb b/test/stripdown_render_test.rb
index eb7368dd..53313a0d 100644
--- a/test/stripdown_render_test.rb
+++ b/test/stripdown_render_test.rb
@@ -58,4 +58,12 @@ def test_highlight
 
     assert_equal expected, output
   end
+
+  def test_with_quote_option_enabled
+    markdown = %(A common idiom is "Hello world")
+    expected = %(A common idiom is Hello world)
+    output   = render(markdown, with: [:quote])
+
+    assert_equal expected, output
+  end
 end