|Adding an interpreted language to program firstname.lastname@example.org (me262) (2007-03-29)|
|Re: Adding an interpreted language to program email@example.com (me262) (2007-03-29)|
|Re: Adding an interpreted language to program firstname.lastname@example.org (Louis Krupp) (2007-03-30)|
|Date:||29 Mar 2007 23:07:14 -0400|
|Posted-Date:||29 Mar 2007 23:07:14 EDT|
On Mar 28, 10:01 pm, "me262" <me2...@gmail.com> wrote:
> I am facing a task of hooking up my program to an intepreted
> language for front end. I know nothing about compiler theory. Is there
> a step-by-step guide on how to do that?
> I looked into some tools such and ANTLR and GOLD. Somehow, they
> would produce an AST. But how do I work it to do things that are
> useful, for example, printing "Hello world: we saw a = 10?".
> [This question comes up a lot, and the best advice is NOT to try to
> write your own interpreter. There are plenty of interpreted languages
> already such as TCL, Lua, and Python, any of which can be used to
> drive your application. -John]
Thanks for the comment. I totally agree with what you said. But in
our particular branch of engineering, there are thousands of scripts
already written in an old interpretive language. As a new comer, we
must be able to pop in CD, install and kick ass. We just can't ask
customers to Pythonize first.
[In that case, you'll have to reimplent your scripting language. Ugh.
I'd suggest parsing into an AST or RPN, then interpret that, rather
than trying to interpret directly from the parser. -John]
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