[slang-users] embedding slsh ?

[Brian Ahr]

I would be particularly interested in seeing the following functions 
available from the library:

* slsh_interactive
* slsh_use_readline
* slsh_init_readline_intrinsics

Granted, thats a pretty small chunk of code. It also seems that slsh 
loads the autoload.sl and slshrl.sl files on start up - and the behavior 
of the above listed functions does not quite match the behavior of slsh 
unless those files are loaded. I suppose applications could load those 
files manually, given the installation prefix to S-lang.

The desired functionality would be to allow the interactive interpreter 
to access the internals of a running copy/instance of the host program - 
and be able to take advantage of the existing readline functionality 
defined in slsh/readline.c.

I hadn't thought about loading part of my application as a module. I'll 
look into that as well.

Thanks,
~Brian

John E. Davis wrote:
> Brian Ahr <brianahr at gmail.com> wrote:
>   
>> I am curious if there are any plans to make the interactive S-lang 
>> interpreter (slsh) accessible from the S-lang library?
>>
>> It is possible to embed slsh as it stands now, although applications 
>> which do so would probably wind up including parts of slsh, and thus 
>> would be required to manually merge any patches/updates to slsh. Having 
>> access to slsh through the library would allow applications to embed an 
>> interactive S-lang interpreter without having to modify/reuse parts of 
>> slsh itself.
>>     
>
> I am not exactly sure what parts of slsh you would like to see merged
> into the slang library.  In some sense, slsh is a wrapper around the
> slang readline routines (SLrline), and the slang interpreter
> (SLang_load_*).  There is not much else to it.
>
> If you want your program to prompt for interactive input to be fed to
> the slang interpreter, then you can use something as simple as fgets
> followed by SLang_load_string.  Alternatively, have you considered
> making parts of your application available as a module and then load
> that module into slsh?
>
> Thanks,
> --John
>
>