Variable

Summary

Controls the amount of whitespace in trace output.

Package

hcl

Initial value

nil

Description

*trace-print-pretty* controls the amount of whitespace printed during output from tracing. If it is not nil then extra whitespace is inserted to make the output more comprehensible. *print-pretty* is bound to the value of *trace-print-pretty* while printing tracing information.

Examples

USER 6 > (trace macroexpand-1)

MACROEXPAND-1 

USER 7 > (setq *trace-print-pretty* t                    

            *print-pretty* nil)

NIL 

USER 8 > (defmacro sum (n)

            '(do ((i 0 (1+ i))

                  (res 0 (+ i res)))

                 ((= i ,n) res)))

SUM 

USER 9 > (macroexpand-1 '(sum 3))

0 MACROEXPAND-1 > ((SUM 3)) 

0 MACROEXPAND-1 < ((DO ((I 0 (1+ I))

                     (RES 0 (+ I RES)))

                    ((= I 3)

                    RES))                    

                  T) 

(DO ((I 0 (1+ I)) (RES 0 (+ I RES))) ((= I 3) RES)) 

T 

Notes

*trace-print-pretty* is an extension to Common Lisp.

See also

trace