macro対応

slawo · Sep 17, 2009 · e4354b3 · e4354b3
1 parent d45ef64
commit e4354b3
Showing 1 changed file with 39 additions and 1 deletion.
diff --git a/lib/redmine_markdown_extra_formatter/wiki_formatter.rb b/lib/redmine_markdown_extra_formatter/wiki_formatter.rb
@@ -3,17 +3,55 @@
 
 module RedmineMarkdownExtraFormatter
   class WikiFormatter
+
+
     def initialize(text)
       @text = text
     end
 
     def to_html(&block)
-      BlueFeather.parse(@text.gsub(/\[(.+)\]\((https?:\/\/.+)\)/, '[\1](/redirect/\2)'))
+
+      @macros_runner = block
+
+      parsedText = BlueFeather.parse(@text.gsub(/\[(.+)\]\((https?:\/\/.+)\)/, '[\1](/redirect/\2)'))
+
+      inline_macros(parsedText)
+
     rescue => e
       return("<pre>problem parsing wiki text: #{e.message}\n"+
              "original text: \n"+
              @text+
              "</pre>")
     end
+
+    MACROS_RE = /
+          (!)?                        # escaping
+          (
+          \{\{                        # opening tag
+          ([\w]+)                     # macro name
+          (\(([^\}]*)\))?             # optional arguments
+          \}\}                        # closing tag
+          )
+        /x 
+
+    def inline_macros(text)
+
+      text.gsub!(MACROS_RE) do
+        esc, all, macro = $1, $2, $3.downcase
+        args = ($5 || '').split(',').each(&:strip)
+        if esc.nil?
+          begin
+            @macros_runner.call(macro, args)
+          rescue => e
+            "<div class=\"flash error\">Error executing the <strong>#{macro}</strong> macro (#{e})</div>"
+          end || all
+        else
+          all
+        end
+      end
+
+      text
+    end
+
   end
 end