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

From: Kevin Rodgers
Subject: Re: how to use ejacs to eval a file as with command line driven interpreters
Date: Mon, 12 Jan 2009 19:18:31 -0700
User-agent: Thunderbird (Macintosh/20081209)

Xah Lee wrote:
On Jan 9, 7:09 pm, Kevin Rodgers <address@hidden> wrote:

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

... looking at the source code, looks like js-evaluate in the right
thing to call. Just did this:

(js-evaluate "print(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-

// (js-eval-buffer (current-buffer))

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

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