Redmine

+1

I stumbled across the same issue today, and wondered what I was doing wrong.
This marks Textile as not fully supported by Redmine for me (contrarily to what is written here: Wiki formatting > Text formatting).

Is Textile going to be abandoned in favor of Markdown ? I guess this issue would then be obsolete...

+1

+1
CommonMark Markdown (#32424) that is going to be introduced in Redmine 5.0.0 supports HTML comments. I think it would be nice if Textile supports HTML comments as well.

The following code adds HTML comments support to the Textile formatter.

diff --git a/lib/redmine/wiki_formatting/textile/redcloth3.rb b/lib/redmine/wiki_formatting/textile/redcloth3.rb
index 2816e1c90..274f9cef8 100644
--- a/lib/redmine/wiki_formatting/textile/redcloth3.rb
+++ b/lib/redmine/wiki_formatting/textile/redcloth3.rb
@@ -298,6 +298,7 @@ class RedCloth3 < String
         @pre_list = []
         rip_offtags text
         no_textile text
+        clean_html_comment text
         escape_html_tags text
         # need to do this before #hard_break and #blocks
         block_textile_quotes text unless @lite_mode
@@ -1217,4 +1218,8 @@ class RedCloth3 < String
             end
         end
     end
+
+    def clean_html_comment(text)
+        text.gsub!(/^<!--[\s\S]*?-->$/, '')
+    end
 end