Re: how to use ejacs to eval a file as with command line driven interpreters

[Kevin Rodgers]

Xah Lee wrote:
> On Jan 9, 7:09 pm, Kevin Rodgers <kevin.d.rodg...@gmail.com> wrote:
> > http://code.google.com/p/ejacs/wiki/README
> >
> > There is also a console load() function that takes as an argument the
> > path to a JavaScript source file to load and evaluate.
>
> Thanks Kevin. I missed that.
>
> ... haven't spend time on this... but “load” is actually just a
> function of js, much like “include” in other lang.
>
> i'm hoping to have something like eval-region and eval-buffer for it.
> Using the “load” function to implement this might mean a bit of a
> hack.
>
> ... looking at the source code, looks like js-evaluate in the right
> thing to call. Just did this:
>
> (js-evaluate "print(4);")
>
> 4
>
> seems it insert result and consol prompt into the current buffer, as
> if expecting it is called in a console... a bit more look i found js-
> eval-buffer:
>
> // (js-eval-buffer (current-buffer))
> print(3);
>
> but got error
> let: No catch for tag: js-THROW, throw

So you need to establish the js-THROW tag before calling js-eval-buffer:

(catch 'js-THROW
  (js-eval-buffer (current-buffer)))

If you search the ejacs source code for js-THROW and js-eval-buffer, you
should be able to find out how to do it properly.

--
Kevin Rodgers
Denver, Colorado, USA