I read Jorge Tavares’s article on Macro Patterns a few days ago. I was thinking about replying to mention a few of my favorites:
- The
with-pattern which makes sure a special variable is bound for the body and makes sure the tied resources are released at the end of the block. - Macros which collect content (usually into a special variable) so they can do something with the content at the end of the close of the macro.
Then, I was working on something tonight when I re-discovered a favorite pattern that I’d forgotten about: Putting multiple wrappers on the same body.
I am working on an HTML+JavaScript+CSS project. In the end, I need static files. But, I thought I would use the opportunity to really experience CL-Who, Parenscript, and CSS-Lite.
I have now made a macro called define-web-file which takes a CL-Who or Parenscript body and wraps it up as both a Hunchentoot handler and a write-to-file wrapper. Now, I can test interactively with Hunchentoot and generate the whole web application when I’m ready.