Taking a few arguments from Objective-C to Common Lisp

ID	Created	Type	mocl Version	Dev OS	Target	Status
#26	by hiroki802 on 2013-11-15 (2423 days ago)	question	13.08	Mac OS X	iOS	closed

Description

Hi Wes,

Thank you very much for making a screencast taking your precious time for it.　It helped a lot and I was able to make a hello world app on my Macbook.

Now I'm facing a problem again.  I’m trying to make a simple lisp app as follows:
　1.  to gets three arguments( name, place, time) from iPhone.
　2.  Once pushing a button, Lisp program accepts three arguments from objective-c, and format a sentence embedding them into the lisp code.

Lisp code is as follows:
(defun story (name place time)
  (format nil "Once upon a time, there lived a man named ~A. 
	He lived in ~A. He waked up at ~A every morning. " name place time))

For example, if I fill in three arguments as following:
　1. Name :  Hiroki 
　2. Place : Japan
　3. Time :  7

Once I push the button, the following message will come in the text box on iPhone.
　"Once upon a time, there lived a man named Hiroki. He lived in Japan. 
　　He waked up at 7 every morning. " 
            
Though I could run the program on Emacs of Macbook, I cannot run it on my iPhone.
I tried in a few ways to solve the problem, but I couldn’t figure it out.

Sorry for taking your time.
I’d appreciate your help.

- Hiroki

Comments

Hi Hiroki,

I reviewed the screenshots you sent me. I noticed there is a build error (with the red '!') around calling your story function in ViewController.m. 

I am wondering if mocl needs to run again; possibly the generated files are now stale. Can you confirm that you have run the mocl command after making any changes to your app.lisp file? It must be run every time you make a change to app.lisp (although this can be automated under Xcode if you want).

Wes

- Wukix, 2423 days ago

Hi Wes,

I ran "mocl --ios . app.lisp" again, but the error doesn't disappear, but there are still three messages at "[_txtStory setText:story(<name>, <place>, <time>)];" as follows: "Expected identifier", "type name requires a specifier or qualifier", and "Expected expression."

I checked the connections inspector in the storyboard, and the links has no problems.

I'm not sure, but I'm wondering that there is a problem with the function "setText" to pass the arguments from objective-c to lisp.

It would be happy if you gave me an additional advice.
I'd appreciate your help.

- Hiroki

- hiroki802, 2423 days ago

I looked again at the screenshots. In your call to story, the argument names are actually *empty*. Empty names appear as bubbles. These are merely suggestions from Xcode for names; they are not actually code. If you type again (or paste) completely "story(name, place, time)" you will see what I mean. Let me know if it works!

Wes

- Wukix, 2423 days ago

Hi Wes,

It worked! 
Thank you very much again!

- Hiroki

- hiroki802, 2423 days ago