[antlr-interest] Java Grammar and how to use it to create a script language to my app

[me tk82c]

Hello Randal!

   I agree with you, but my problem is because this "new language" must run
on our windows mobile and java micro edition apps.

   BeanShell doesn't allow this and use a lot of APIs that are from desktop
world (reflection, for example).
   I agree with you that Java is not a good language to act as script
language. But what I'm really looking for is a way to create a small script
language that conforms to any standard (Python for example) and can be
extended easily.

   ANTLR is a good way? There is any solution out of box that i can just get
and use it to improve later without have to learn all about ANTLR?

   Get a already implemented grammar will help and save the day? If so could
you give the way to use it?

Thanks!

tk



On Fri, Oct 31, 2008 at 12:03 AM, Randall R Schulz <rschulz at sonic.net>wrote:

> On Thursday 30 October 2008 18:25, me tk82c wrote:
> > Hello Everybody!
> >
> > I'm trying to create a new language to allow my users to write small
> > scripts in our web app.
> >
> > There is any short way to do that? Something like, download the
> > existent java grammar from ANTLR and implement the specific functions
> > that users will use in my app with this "Java" version.
>
> I don't think Java is a good model or pattern for an extension or
> application scripting language.
>
> I am personally fond of Lisp and the general use of S-Expressions for
> programming languages of all stripes, but many people feel such
> languages cumbersome.
>
> You'd probably be best advised to craft a language specific to the
> system it will control or drive and which will seem natural to its
> users.
>
> ANTLR will help you detect and either eliminate or accommodate any
> abiguities in the grammar you devise, which is one of its many virtues.
>
> And if Java really _is_ a good language for your purposes, then perhaps
> BeanShell would be appropriate. You should probably also consider,
> JavaScript or another JSR-223-compliant language before starting out
> from scratch inventing a scripting language.
>
> Lastly, there are several dynamic languages that integrate well with
> Java and which can serve as scripting languages for programs written in
> Java. They include (but are by no means limited to) Groovy, Scala and
> Clojure.
>
>
> In short, don't invent something you don't need and don't use a language
> that is too low-level (by which I mean Java itself) for your intended
> requirements and audience.
>
>
> > Please, help!
> >
> > tk
>
>
> Randall Schulz
>
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