Rename MarkdownHelper to MarkupHelper

1 files changed, 38 insertions, 0 deletions

diff --git a/lib/gitlab/markup_helper.rb b/lib/gitlab/markup_helper.rb
new file mode 100644
index 00000000000..fb037266d23
--- /dev/null
+++ b/lib/gitlab/markup_helper.rb
@@ -0,0 +1,38 @@
+module Gitlab
+  module MarkupHelper
+    module_function
+
+    # Public: Determines if a given filename is compatible with GitHub::Markup.
+    #
+    # filename - Filename string to check
+    #
+    # Returns boolean
+    def markup?(filename)
+      filename.downcase.end_with?(*%w(.textile .rdoc .org .creole .wiki
+                                      .mediawiki .rst .adoc .ad .asciidoc))
+    end
+
+    # Public: Determines if a given filename is compatible with
+    # GitLab-flavored Markdown.
+    #
+    # filename - Filename string to check
+    #
+    # Returns boolean
+    def gitlab_markdown?(filename)
+      filename.downcase.end_with?(*%w(.mdown .md .markdown))
+    end
+
+    # Public: Determines if the given filename has AsciiDoc extension.
+    #
+    # filename - Filename string to check
+    #
+    # Returns boolean
+    def asciidoc?(filename)
+      filename.downcase.end_with?(*%w(.adoc .ad .asciidoc))
+    end
+
+    def previewable?(filename)
+      gitlab_markdown?(filename) || markup?(filename)
+    end
+  end
+end