topic Re: Associate user input string to specific variable in Visual LISP, AutoLISP and General Customization Forum

Associate user input string to specific variable

Rob_Durham — Sun, 12 Jun 2016 09:34:48 GMT

Hi there,

I have defined a value to each date of the year

for example

(Setq 21/06/16 (441294067.896324))
(Setq 22/06/16 (443874734.960046))

The lisp routine prompts the user to enter a date in the format (dd/mm/yy)

(setq date (getstring "Enter date (dd/mm/yy) "))

How do I associate the string entered by the user to the specific value associated with that particular date in my list of variables?

For example the user enters: 21/06/16, how do I get it to use the value 441294067.896324 for use in other commands?

Thanks

Re: Associate user input string to specific variable

ВeekeeCZ — Sun, 12 Jun 2016 09:52:15 GMT

I would suggest something like this...

(defun c:test nil

  (setq dtelst '(("21/06/16" . 441294067.896324)
		 ("22/06/16" . 443874734.960046))
	dte (getstring "\nSet date: "))

  (cdr (assoc dte dtelst))
)

Or your way using variables...

> (setq 21/06/16 441294067.896324)
4.41294e+008

> (eval (read (getstring)))
> 21/06/16
4.41294e+008

Re: Associate user input string to specific variable

Rob_Durham — Sun, 12 Jun 2016 12:04:35 GMT

Your first method worked perfectly.

Thank you

Re: Associate user input string to specific variable

scot-65 — Mon, 13 Jun 2016 22:36:03 GMT

Did you notice the variable created by BeeKee
did not begin with a number?
And the dotted-pair is quoted (meaning it is a STRING)
when the first character is a number?

.