Monkey-patched ReverseMarkdown's :text & :pre (#353)

app/lib/reverse_markdown/converters/custom_pre.rb

@@ -0,0 +1,42 @@
+module ReverseMarkdown
+  module Converters
+    class CustomPre < Base
+      def convert(node, state = {})
+        content = treat_children(node, state)
+        if ReverseMarkdown.config.github_flavored
+          "\n```#{language(node)}\n" << content << "\n```\n"
+        else
+          "\n\n    " << content.lines.to_a.join("    ") << "\n\n"
+        end
+      end
+
+      private
+
+      def treat(node, state)
+        case node.name
+        when "code"
+          node.text
+        when "br"
+          "\n"
+        else
+          super
+        end
+      end
+
+      def language(node)
+        lang = language_from_highlight_class(node)
+        lang || language_from_confluence_class(node)
+      end
+
+      def language_from_highlight_class(node)
+        node.parent["class"].to_s[/highlight-([a-zA-Z0-9]+)/, 1]
+      end
+
+      def language_from_confluence_class(node)
+        node["class"].to_s[/brush:\s?(:?.*);/, 1]
+      end
+    end
+
+    register :pre, CustomPre.new
+  end
+end

app/lib/reverse_markdown/converters/custom_text.rb

@@ -0,0 +1,56 @@
+module ReverseMarkdown
+  module Converters
+    class CustomText < Base
+      def convert(node, _options = {})
+        if node.text.strip.empty?
+          treat_empty(node)
+        else
+          treat_text(node)
+        end
+      end
+
+      private
+
+      def treat_empty(node)
+        parent = node.parent.name.to_sym
+        if %i[ol ul].include?(parent) # Otherwise the identation is broken
+          ""
+        elsif node.text == " " # Regular whitespace text node
+          " "
+        else
+          ""
+        end
+      end
+
+      def treat_text(node)
+        text = node.text
+        text = preserve_nbsp(text)
+        text = remove_border_newlines(text)
+        text = remove_inner_newlines(text)
+        text = escape_keychars(text)
+        text = preserve_keychars_within_backticks(text)
+        text
+      end
+
+      def preserve_nbsp(text)
+        text.gsub(/\u00A0/, "&nbsp;")
+      end
+
+      def remove_border_newlines(text)
+        text.gsub(/\A\n+/, "").gsub(/\n+\z/, "")
+      end
+
+      def remove_inner_newlines(text)
+        text.tr("\n\t", "")
+      end
+
+      def preserve_keychars_within_backticks(text)
+        text.gsub(/`.*?`/) do |match|
+          match.gsub('\_', "_").gsub('\*', "*")
+        end
+      end
+    end
+
+    register :text, CustomText.new
+  end
+end

config/initializers/reverse_markdown.rb

@@ -0,0 +1,2 @@
+ReverseMarkdown::Converters.register :pre, ReverseMarkdown::Converters::CustomPre.new
+ReverseMarkdown::Converters.register :Text, ReverseMarkdown::Converters::CustomText.new