(define-module (click util)
+ #:use-module (ice-9 readline)
#:use-module (click constant)
#:export (getopt-long-option-spec
+ option-default-value
option-property
program-name
%program-name))
(if property
(cadr property)
default)))
+
+(define* (option-default-value option #:optional (no-prompt #f))
+ "Get default value for option, asking user if prompt property is set"
+ (let ((default (option-property option 'default)))
+ (if (not default)
+ (let ((prompt (option-property option 'prompt)))
+ (if prompt
+ (readline (format #f "~a: " prompt))
+ default))
+ default)))