Hi!
Jan Nieuwenhuizen <jann...@gnu.org> skribis:
> Much to my surprise, Guile (v2.2 and 3.0 alike) fail to load a module
> that has a dot in its base name. Directory names with dots
> (e.g. ice.10/boot-10.scm => (ice.10 boot-10)) are fine.
[...]
> - /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
> - {
> - char *endp;
> -
> - for (endp = filename_chars + filename_len - 1;
> - endp >= filename_chars;
> - endp--)
> - {
> - if (*endp == '.')
> - {
> - if (!string_has_an_ext (filename, extensions))
> - {
> - /* This filename has an extension, but not one of the right
> - ones... */
> - goto end;
> - }
> - /* This filename already has an extension, so cancel the
> - list of extensions. */
> - extensions = SCM_EOL;
> - break;
> - }
> - else if (is_file_name_separator (SCM_MAKE_CHAR (*endp)))
> - /* This filename has no extension, so keep the current list
> - of extensions. */
> - break;
> - }
> - }
This code mostly dates back to 1999 (commit
563841768b8659dad87296be4ae9ce589cbe99d4). It has to do with the fact
that you can omit the extension when loading a file, in which case one
of those in ‘%load-extensions’ is picked up:
--8<---------------cut here---------------start------------->8---
scheme@(guile-user)> (primitive-load-path "ice-9/q")
scheme@(ice-9 q)>
--8<---------------cut here---------------end--------------->8---
The usefulness of this mechanism is debatable :-), but I don’t think we
can change it during a stable release.
I wonder if there are other ways we could support file names with dots.
However, note that symbols containing dots are non-standard (R5RS does
not allow it.)
Thoughts?
Ludo’.
