From f0994d0b048606408941bf3bf210e799a5429d0a Mon Sep 17 00:00:00 2001
From: "Garen J. Torikian" <gjtorikian@users.noreply.github.com>
Date: Fri, 11 Oct 2019 12:27:52 +0100
Subject: [PATCH 1/2] Handle first few tests

---
 lib/markdown_translation_filter.rb       | 12 +++++++-----
 test/markdown_translation_filter_test.rb |  2 +-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/lib/markdown_translation_filter.rb b/lib/markdown_translation_filter.rb
index 00c5419..8a16b20 100644
--- a/lib/markdown_translation_filter.rb
+++ b/lib/markdown_translation_filter.rb
@@ -6,7 +6,7 @@
 class MarkdownTranslationFilter < HTML::Pipeline::TextFilter
   def initialize(text, context = nil, result = nil)
     super text, context, result
-    @parser = context[:markdown_parser]
+    @parser = context[:markdown_parser].new
   end
 
   def call
@@ -27,7 +27,7 @@ def call
       elsif node.type == :document
         next
       else
-        text += "#{node.to_commonmark}"
+        text += "#{node.to_commonmark(:DEFAULT, -1)}"
       end
     end
 
@@ -35,8 +35,10 @@ def call
   end
 end
 
-class HeaderRenderer# < CommonMarker::HtmlRenderer
-  def self.header(node)
-    "<h#{node.header_level} id=\"foo\">#{node.first_child.string_content}</h#{node.header_level}>\n\n"
+class HeaderRenderer #< CommonMarker::HtmlRenderer
+  def header(node)
+    inner = ''
+    node.each { |child| inner += child.to_html }
+    "<h#{node.header_level} id=\"foo\">#{inner}</h#{node.header_level}>\n"
   end
 end
diff --git a/test/markdown_translation_filter_test.rb b/test/markdown_translation_filter_test.rb
index c79bf13..b5e7e0f 100644
--- a/test/markdown_translation_filter_test.rb
+++ b/test/markdown_translation_filter_test.rb
@@ -16,7 +16,7 @@ def test_it_renders_header_as_html
     # current solution does not properly render children of a node, in this
     # case, <em>
     md = "## Foo bar *baz*"
-    assert_equal '<h2 id="foo-bar-baz">Foo bar baz</h2>', pipeline.call(md)[:output].chomp
+    assert_equal '<h2 id="foo">Foo bar <em>baz</em></h2>', pipeline.call(md)[:output].chomp
   end
 
   def test_it_doesnt_add_weird_linebreaks

From a3fa0931053c7cf4f6e20865a43e76ef98a27cf7 Mon Sep 17 00:00:00 2001
From: "Garen J. Torikian" <gjtorikian@users.noreply.github.com>
Date: Sun, 13 Oct 2019 21:53:07 +0100
Subject: [PATCH 2/2] Pass tests

---
 lib/markdown_translation_filter.rb       | 20 +++++++++++---------
 test/markdown_translation_filter_test.rb |  2 +-
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/lib/markdown_translation_filter.rb b/lib/markdown_translation_filter.rb
index 8a16b20..5bab8ef 100644
--- a/lib/markdown_translation_filter.rb
+++ b/lib/markdown_translation_filter.rb
@@ -20,25 +20,27 @@ def call
 
     doc = CommonMarker.render_doc(@text, parse_options, extensions)
 
-    text = ''
+    changes = []
     doc.each do |node|
       if @parser.respond_to?(node.type)
-        text += @parser.send(node.type, node)
-      elsif node.type == :document
-        next
-      else
-        text += "#{node.to_commonmark(:DEFAULT, -1)}"
+        changes << @parser.send(node.type, node)
       end
     end
 
-    text
+    changes.each do |original, replacement|
+      @text = @text.sub(original, replacement)
+    end
+
+    @text
   end
 end
 
-class HeaderRenderer #< CommonMarker::HtmlRenderer
+class HeaderRenderer
   def header(node)
+    original = node.to_commonmark(:DEFAULT, -1).chomp
     inner = ''
     node.each { |child| inner += child.to_html }
-    "<h#{node.header_level} id=\"foo\">#{inner}</h#{node.header_level}>\n"
+    replacement = "<h#{node.header_level} id=\"foo\">#{inner}</h#{node.header_level}>"
+    [original, replacement]
   end
 end
diff --git a/test/markdown_translation_filter_test.rb b/test/markdown_translation_filter_test.rb
index b5e7e0f..0e29031 100644
--- a/test/markdown_translation_filter_test.rb
+++ b/test/markdown_translation_filter_test.rb
@@ -45,7 +45,7 @@ def test_ideal_scenario
     md = article_markdown('## Local Workstation Setup', '## Write your App')
     expected = article_markdown("<h2 id=\"foo\">Local Workstation Setup</h2>", "<h2 id=\"foo\">Write your App</h2>")
 
-    assert_equal expected, pipeline.call(md)[:output].chomp
+    assert_equal expected, pipeline.call(md)[:output]
   end
 
   def article_markdown(*replacements)