Anonymous functions called quotes are used heavily by Retro. This shows a way to attach names to them.
In a classic Forth, words are created using :, which is one of numerous parsing words. So a named function looks like:
: foo ... ;
In Retro, there are no parsing words. There is a sigil handler :, yielding:
:foo ... ;
Quotes start with [ and end with ]. So they look like:
[ ... ]
If we want to name a quote, we need to:
• create a header
• assign the xt field to the quote address
• set the class handler
This word, def, does these.
An example of using this: