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


From: Xah Lee
Subject: Re: how to use ejacs to eval a file as with command line driven interpreters
Date: Sun, 11 Jan 2009 08:20:12 -0800 (PST)
User-agent: G2/1.0

On Jan 9, 7:09 pm, Kevin Rodgers <address@hidden> wrote:
> XahLeewrote:
> > there's Stevey Yegge's javascript interpreter written in elisp.
> >http://code.google.com/p/ejacs/
>
> > by default it runs in emacs as a command line console.
>
> > my question is, is it possible to run ejacs with a file?
>
> > e.g. i have a file x.js, which i can run in shell with spidermonkey
> > like this:
> > js x.js
>
> > i wish to be able to use ejacs to eval a file. Otherwise it wouldn't
> > be useful to me.
>
> 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

  Xah
∑ http://xahlee.org/

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