*print-right-margin* is a Clojure dynamic variable in clojure.pprint that sets the preferred number of columns before pretty printing breaks a line. Its default is 72. section 23.20
Force narrower output
Pretty-printing eight repeated words at the default margin produces one line. Bind the margin to 60 to place each word on its own line: (binding [pprint/*print-right-margin* 60] (print-with-length (words 8))) The binding changes formatting locally without changing the variable globally.
The margin guides line breaking rather than simply cutting text at a fixed character position: clojure.pprint adds spaces, parentheses, and other formatting artifacts while choosing readable breaks. For deeply nested source code, combine it with *print-miser-width*. section 23.20
