Chapter 11. Printing Text with the format Function
Even in this modern era of programming, it’s extremely important to be able to manipulate text, and Common Lisp has some of the fanciest text-printing functions available. Whether you need to manipulate XML, HTML, Linux configuration files, or any other data in a textual format, Lisp will make your work easy.
The most important advanced text printing function in Common Lisp is the
format function, which is the subject of this chapter.
Anatomy of the format Function
Here is an example of the
format function in use:
(format t "Add onion rings for only ˜$ dollars more!" 1.5)Add onion rings for only 1.50 dollars more! NIL
Let’s take a look at what each part of this function means.