* Introduces @HelpController@ and a new route @help/wiki_syntax/(:type)@ to serve wiki syntax help files.

* Moves all wiki syntax help files to @app/views/help@ and CSS files to asset pipeline. 

(#39111, #40137).

git-svn-id: https://svn.redmine.org/redmine/trunk@22719 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/help_controller.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+# Redmine - project management software
+# Copyright (C) 2006-2023  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class HelpController < ApplicationController
+  def show_wiki_syntax
+    type = params[:type].nil? ? "" : "#{params[:type]}_"
+    render :template => "help/wiki_syntax/#{current_language.to_s}/wiki_syntax_#{type}#{Setting.text_formatting}", :layout => nil
+  end
+end