exposing eval_in_lisp via jscl.evaluateString in prelude.js

[HenryS1]

issue #265

[davazp]

Somehow I thought we had this already! Good one.

By the way, you can mention the issues in the commit messages like

This closes #265 . or This fixes #265. They issue will be automatically closed as we merge it and it will make easier for people to track changes.

https://help.github.com/articles/closing-issues-using-keywords/#

[viebel]

That is awesome @davazp and @HenryS1 !
Can you provide the full instructions in order to be able to use jscl.evaluateString in a standalone mode.
What I need is a (single) javascript file that I can include in a webpage (e.g jsfiddle) and being able to call jscl.evaluateString in this webpage

[t-cool]

@viebel

Hi.
You need to download the src code and compile it.
I use sbcl for its compiler.
After compiling the src, you can use jscl.evaluateString method.

I'll write down the steps as bellow:

# on your Terminal
$ git clone https://github.com/jscl-project/jscl.git
$ cd jscl
$ sbcl

# then sbcl starts
(load "jscl.lisp")
(jscl:bootstrap)

After doing (jscl:bootstrap), jscl.html is geberated in jscl directory.
You can open the file by Firefox and open the JavaScript console.
Then you can use jscl.evaluateString and change the Lisp environment by JavaScript.

In the example bellow, I defined the function in the console using jscl.evaluateString and eval it on Lisp REPL.

[t-cool]

@viebel
I made a toy app using JSCL.
If you want to use JSCL like Jsfiddle, it would be useful.

You can play with JSCL in this Github Pages:
https://t-cool.github.io/jscl-playground

The src is here:

Normal version

https://github.com/t-cool/jscl-playground/tree/master

React version

https://github.com/t-cool/jscl-playground

Regards.
Hiroki

[viebel]

@t-cool when I execute (jscl:bootstrap) in jscl, I am getting this error:

Compiling src/misc.lisp...
Compiling src/symbol.lisp...
Compiling src/package.lisp...
Compiling src/ansiloop/ansi-loop.lisp...
Compiling src/read.lisp...
Compiling src/conditions.lisp...
Compiling src/backquote.lisp...
Compiling src/compiler/codegen.lisp...
Compiling src/compiler/compiler.lisp...
Compiling src/documentation.lisp...
Compiling src/worker.lisp...
Compiling src/toplevel.lisp...

debugger invoked on a SIMPLE-ERROR in thread
#<THREAD "main thread" RUNNING {10005505B3}>:
  The name `"SB-POSIX"' does not designate any package.

Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.

restarts (invokable by number or by possibly-abbreviated name):
  0: [ABORT] Exit debugger, returning to top level.

(FIND-PACKAGE-OR-FAIL "SB-POSIX")
   source: (ERROR "The name `~S' does not designate any package."
                  PACKAGE-DESIGNATOR)
0]

[t-cool]

@viebel
Please check your sbcl version.
I compiled JSCL using SBCL 1.4.3.

You can get sbcl from its official website:
http://www.sbcl.org/platform-table.html

$ sbcl --version
SBCL 1.4.3

[HenryS1]

@viebel There is some non portable lisp in the source so compilation will only work with SBCL. Which lisp implementation are you using? I've created issue #317 to make JSCL portable between implementations. In the mean time you'll need to use SBCL.

[viebel]

@t-cool
I installed sbcl via homebrew (MacOS) and I got version 1.4.7

$ sbcl --version
SBCL 1.4.7

[viebel]

@HenryS1 Could you compile the code on your side and provide a standalone javascript file (maybe upload to github) that can exectute jscl.evaluateString ?

[t-cool]

@viebel

I upgraded sbcl to 1.4.7 on my macbook and I could compiled jscl.
I made a repository and upload the compiled files.
If you need, please use these files.
https://github.com/t-cool/jscl

[viebel]

That's awesome @t-cool.
It allowed me to integrate JSCL into Klispe.
Now we can have Common Lisp code snippets in any web page. See demo here.
@HenryS1 @davazp

[t-cool]

@viebel
Wow! That's awesome!
I'll try to make something using Klispe.

[viebel]

what do you have in mind @t-cool ?

[davazp]

@viebel . I love it :-) that is really cool indeed.

If it helps, notice that jscl is also under a npm package

https://www.npmjs.com/package/jscl

if your integration with klipse doesn't require custom CL code, you can use that package to help you keep jscl up-to-date.

Thanks for the demo

[t-cool]

@viebel
I wrote jscl-playground for my students a few month ago.
https://t-cool.github.io/jscl-playground/

The image is similar to jscl-playground, an educational app.
Af the beginning, a ball is bouncing in the canvas and students write some cl codes to put the ball into the goal.
When the ball arrives to the goal, the prompt says "Success!!", and they can proceed to the next chapter...something like that.

[davazp]

@viebel A colleague reported me that (loop would hang klipse. Probably the same EOF error on reading than @HenryS1 was trying to solve? In case you aren't aware of it.

[HenryS1]

@viebel Fantastic :)
@t-cool JSCL-playground looks really cool too!