Re: overfull lines with @url in @raggedright

[Gavin Smith]

On Mon, Jul 23, 2018 at 11:55 AM, Werner LEMBERG <address@hidden> wrote:
> shows that @url in @raggedright environments would need some
> improvements.

The output looks the same whether it is in @raggedright or not, so it
seems that it needs improvement in both cases.

> What about adding code to support something similar to
> the `hyphens' option of LaTeX's `url' package?  This, together with a
> call to `\emergencystretch' at the beginning of the ragged-right
> environment, seems to solve the issue.

I looked at the documentation of the url package at
https://ctan.org/pkg/url?lang=en. If I understand it correctly the
"hyphens" option allows line breaking at a hyphen.

texinfo.tex is supposed to allow breaking at some characters but not
the hyphen. I think breaking at "/" would be sufficient in the example
you give. The problem is how to achieve this.

I tried increasing greatly the values of \urefprestretchamount and
\urefpoststretchamount, which causes breaking outside @raggedright,
but not inside @raggedright where these values are overridden. The
formatting is also messed up. Probably some more experimentation is
needed with different options.

In the meantime, @/ is an option to allow a break:

@url{https://www.gnu.org/software/libc/manual/html_node/Message-catalogs-@/with-gettext.html}

Currently, this looks a lot better (to me) in the @raggedright
environment where there is no stretch around the "/" characters.


> IMHO, an underfull box is always preferable to an overfull one (at
> least in technical documentation).
>
>
>     Werner