Hi,

In message "Re: Embedding 1.9"
on Tue, 8 Jan 2008 06:44:08 +0900, Dave Thomas <dave@pragprog.com> writes:

|Folks:
|
|I'm working on the "Extending Ruby" chapter (now an appendix) for the
|third PickAxe, and I'm finding a whole bunch of conflicting
|information. Reading the source, it seems like there's no canonical
|way of embedding Ruby in a C application. I have lots of alternatives
|that _seem_ to work, but I want to be more authoritative than that.
|
|Does anyone have any pointers to stuff that would ?

Perhaps "authoritative" means "information from the original author"
but I don't remember I wrote such document (sigh).

Basically, you have to call:

ruby_sysinit() for command line argument initialization (optional)
RUBY_INIT_STACK() for GC stack initialization
ruby_init() for ruby interpreter initialization

and wrap ruby calls with rb_protect() for initialize exception frame.
You can load Ruby programs with rb_load(). You can call ruby programs
from string via rb_eval_string().

matz.

On Jan 7, 2008, at 9:36 PM, Yukihiro Matsumoto wrote:

>
> Perhaps "authoritative" means "information from the original author"
> but I don't remember I wrote such document (sigh).
>
> Basically, you have to call:
>
> ruby_sysinit() for command line argument initialization (optional)
> RUBY_INIT_STACK() for GC stack initialization
> ruby_init() for ruby interpreter initialization
>
> and wrap ruby calls with rb_protect() for initialize exception frame.
> You can load Ruby programs with rb_load(). You can call ruby programs
> from string via rb_eval_string().


In 1.9, do we also now need to call set_locale()?


Dave

On 08/01/2008, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:
> Hi,
>
> In message "Re: Embedding 1.9"
> on Tue, 8 Jan 2008 13:22:01 +0900, Dave Thomas <dave@pragprog.com> writes:
>
> |In 1.9, do we also now need to call set_locale()?
>
> Do you mean setlocale()? It's optional. If you call it,
> Encoding.default_external will be set according to your locale,
> otherwise it will be ASCII-8BIT.
>

However, calling setlocale should not break ruby 1.9 since the
interpreter does it as well ;-)

Thanks

Michal

On Jan 8, 2008, at 1:59 AM, Michal Suchanek wrote:

> However, calling setlocale should not break ruby 1.9 since the
> interpreter does it as well ;-)

Right. The interpreter calls a bunch of methods during initialization.
I'm trying to determine the minimum subset required for safe 1.9
operation. I _think_ I've got it now, and I'll be pushing it as part
of the beta in the next few days.

Thanks


Dave

On Tuesday 08 January 2008 10:36:56 am Yukihiro Matsumoto wrote:
>
> Basically, you have to call:
>
> ruby_sysinit() for command line argument initialization (optional)
> RUBY_INIT_STACK() for GC stack initialization
> ruby_init() for ruby interpreter initialization
>
> and wrap ruby calls with rb_protect() for initialize exception frame.
> You can load Ruby programs with rb_load(). You can call ruby programs
> from string via rb_eval_string().
>
> matz.

good day all,

while it's still hot talking about embedding, let me ask a related question
here: is there any way to do reflection from ruby C API?

rgds,
Edwin.