Re: SRFI-64: test exception symbol

[Taylan Kammer]

On 01.05.2020 21:20, Vladimir Zhbanov wrote:
> The first question: supposed that I already have guile installed
> (together with its own srfi's) and have downloaded your
> repository, how can I use your modules in my own code then?
>
> The second one: how to make your code available for our code in
> the spread of distributions our project builds on?  Probably,
> there is a way to uniformly integrate some parts of it
> (e.g. srfi-64) to our project?  Or should I require distribution
> packagers working on packaging of our project to package your code
> as a some new package, too?  Not sure, how to achieve this and if
> this is possible at all.

I believe the latest version of Guile supports R7RS libraries, so 
theoretically all you need to do is to add the path to the repository to 
the load-path of Guile, and you should be able to import (srfi 64).

I don't know if Guile's embedded SRFI-64 is also available as (srfi 64) 
or only as (srfi srfi-64) but even if it's the former, I think adding a 
directory to the load-path will override it.  You can tell from the 
standard output format whether you're running the standard 
implementation or mine; my version is much more verbose by default.

Adding to the load path can be done by setting GUILE_LOAD_PATH, by using 
the -L command-line switch, or by using the `add-to-load-path' form in code.

As for the second question:

There is sadly no standardized way to distribute R7RS libraries (e.g. 
the standard doesn't define something like a "load path" and how to 
influence it).

However, most of my project (including the SRFI-64 bit) is under the 
permissive (non-copyleft) SRFI license, which I think is equivalent to 
BSD-2.  (This is because most of my project is R7RS library wrappers for 
the existing reference implementations; I use the GPLv3 for new code I 
write.)  So you could simply copy the relevant files and bundle them in 
your project along with other Scheme code.

Happy to help if you have further questions.  (If I don't respond, which 
would be because I don't check the mailing list often, feel free to 
remind me by sending a mail directly to me without the list in CC so the 
mail lands in my primary INBOX.)

- Taylan