Does your book reference/address any tool(s) that can help upgrade/transition existing HTML code to HTML5? Or is it best to just rewrite from scratch? I am trying to plan for the migration of some "legacy" applications. Any insights would be greatly appreciated. Thanks. Pat
We don't cover that explicitly, no. However be aware that most valid HTML4 documents are also valid HTML5 documents, HTML5 is designed to be backwards compatible. It's fine to start using HTML5 features within your existing documents, following the principal of progressive enhancement. You will also find the W3C's HTML5 differences from HTML4 useful.
Pat, I wish there were tools that would transition things over easily. But the closest thing out there are backwards compatible libraries such as http://iewebgl.com/ and http://videojs.com/. Depending on the topic you may have to dig around for a library that is still being maintained.
I didn't say it. I'm just telling you what this tiny ad said.