the blog for developers

Forking Radeox: A new wiki render engine

After some debate of getting the rights to Radeox and a some negotiations I decided to fork Radeox. Radeox is an open source wiki render engine for Java which turns wiki markup into HTML and which is successfully used in several wikis. For years I was the lead developer for Radeox but that changed when I got a new job.

The past

  • Radeox was used in SnipSnap and refactored to it’s own project
  • The license was changed to Apache, the API license was changed to BSD
  • Work on Radeox was done during my employment at Fraunhofer FIRST, who own the rights to some of the code
  • The ideas, the API and some implementation predate SnipSnap and Fraunhofer
  • At Fraunhofer Radeox was cleaned up, refactored and extended with features

The name is owned by me so although I fork Radeox I still keep the name. Radeox is available on the Reposita SVN server.

The future

The development of wikis is not over. From my point of view what we see is just the beginning of wikis. We have only seen the tip of the iceberg. Wikis are still growing steadily, just take a look at google trends (not scientific blah blah blah):

Wiki vs. Blog

I’ve been developing, consulting and thinking about wikis for 8 years, my first self-developed wiki is dated 1999. SnipSnap as a wiki was very successfull for some time. I talked to lots of people about the future of wikis and what they think in which direction wikis will move. I attended several WikiSym events and was helping to organize one. At the last WikiSym I gave a workshop and co-wrote a paper (PDF) about wiki render engines: “The Radeox Wiki Render Engine”. The discussion around the paper sparked several revolutionary ideas and I will implement some of them in the next Radeox version. Wiki engines didn’t innovate in the last years, so it’s time for change and a speedup in innovation. Innovation in rendering engines will spark innovation in wiki implemtations. May we live in interesting times.

Thanks for listening.

You can leave a Reply here. Of course, you should follow me on twitter here.

You can share this post!
Do you want to tell others about this article? Use the social bookmark icons to submit this artice to the service of your choice. Thanks.

About the author: Stephan Schmidt is head of development at brands4friends. He has more than 15 years of internet technology experience and 10 years experience in agile. He was head of development, consultant and CTO and is a speaker, author and blog writer. He specializes in organizing and optimizing software development helping companies by increasing productivity with lean software development and agile methodologies. Want to know more? All views are only his own.
Leave a reply.

Comments

Jason Carreira

This is great news! I’m starting a new app that will be a great fit for Wiki editing, but I was really worried about what was happening with Radeox, especially when the web page went down. I’m glad to see you’re getting it moving again. Any hints on what the innovations will be?

Glad to see Radeox going further!

Regarding your comment on lack of innovation in the wiki engine area, I have to disagree as I’ve seen great progress lately on advanced second-generation engines like XWiki (http://www.xwiki.org) which lets you build full-blown applications on top of its platform. Awesome stuff in perspective… you should have a look at it ;-)

stephan

First of all, thanks for using Radeox and being interested for a long time.

I know XWiki and talked to the people at WikiSyms. Nice and clever. I also talked to the JotSpot guys. Yes there is innovation regarding wikis as a plattform (I wrote wiki plattform stuff in 2001, there should be an excel like table in Radeox ;-) The SnipSnap predecessor was a social network / knowledge management / tagging plattform which integrated a wiki.

But there is no wiki business integration, workflow, domain specific language and adaption innovation (some small projects try this and I think TWiki does consulting on parts of that). There is no backend innovation (Wiki on top of Alfresco CIFS anyone?). Wiki specific JSR? Exchangable wiki backends? Parallel access to a wiki backends by JSPWiki and XWiki? And I can think of much more :-) And last not least I wrote “wiki engine” innovation, not wiki innovation. There is still – as far as I know – no working refactoring tool for wiki content. There is no Wiki/Source-Code integration.

This is great news. I am using radeox in my toy blog project and it’s great to see it revived. Thanks Stephan

Hi Stephan,

There is backend innovation. We have an experimental JCR storage (on top of JackRabbit and eXo JCR) in XWiki.

We are also working on Wiki replication (P2P and Offline).

Concerning syntax there is WikiCreole for standardization.

I agree also about Excel. We have an experimental integration with Google Spreadsheet
http://www.xwiki.org/xwiki/bin/view/GoogleSummerOfCode/Google Docs Integration

As far as Radeox is concerned, did you have a look at WikiModel (http://wikimodel.sourceforge.net/). We are looking at this for XWiki.

stephan

Hi Ludovic,

excellent to hear! “Wiki specific JSR.” I think an JCR backend is the right direction but not enough. For JCR there should be a wiki standard for nodes like title, content etc. to allow several wiki engines to sit on top of one JCR storage. Then they should use the same content model or Creole.

I’ll take a look at wikimodel, I hope to integrate an AST into Radeox as a next step. Does wiki model support Creole? I also think that a buttom up parser like Tatoo would be a much better idea than a top down parser like JavaCC.

P2P! I discussed a server-less P2P wiki for more than 5 years with leo, we think this would allow for revolutionary wiki usage. We never had the manpower to implement those ideas though. I’m curious about the XWiki P2P results. Great work.

[...] When you’ve got nothing better to do, take a look at Google Trends. Although it’s not scientific, you can gain some insights into trends. Today I was astonished: At last wikis took over blogs on google trends. When I wrote about the future of Radeox one month ago, blog still overtook wiki with Google searches. This has changed. People now search more often for wikis than they do for blogs. [...]

is there any news about this “new wiki render engine”?

For progress on the XWiki rendering engine see http://code.xwiki.org/xwiki/view/Modules/RenderingModule

Leave a Reply

What people wrote somewhere else:

Additional comments powered by BackType

Guide to CodeMonkeyism

Over the last 4 years I wrote many articles on this blog. To make it easier for you to find the relevant ones, I've organized them into topics.

Top 10

6 reasons why my VC funded startup did fail

Go Ahead: Next Generation Java Programming Style

Java Interview questions: Write a String Reverser

The dark side of NoSQL

7 Bad Signs not to Work for a Software Company or Startup

Is Java dead?

Scala vs. Clojure

Never, never, never use String in Java

No future for functional programming in 2008 – Scala, F# and Nu

Clojure vs Scala, Part 2

Job Seeker

Another Good (Java) Interview Question

7 Bad Signs not to Work for a Software Company or Startup

Java Interview questions: Write a String Reverser (and use Recursion!)

Java Interview questions: Multiple Inheritance

As a Manager: What I value in developers

Top 10 Tips (+1) to Get a Pay Raise

Java Developer

Is Java Dead?

Go Ahead: Next Generation Java Programming Style

Be careful with magical code

All variables in Java must be final

Never, never, never use String in Java

Bending Java: More readable code with methods that do nothing?

Startup/CTO

Development Dream Teams

6 reasons why my VC funded startup did fail

American vs. European style of Software Development

12 Things to Reduce Your Lead Time and Time to Market

The high cost of overhead when working in parallel

Essential storage tradeoff: Simple Reads vs. Simple Writes

Agilist

What Developers Need to Know About Agile

5 Practices Better to Change in Your Scrum Implementation

Scrum is not about engineering practices

ScrumMaster and ZenMaster: The joke of certification

What is Trans-Scrum?