bug#49947: Backtrace on "@abbr{...}" in package description

[Ludovic Courtès]

Hi Sarah,

Sarah Morgensen <iskarian@mgsn.dev> skribis:

> The Texinfo manual says [0] that I should be able to use @abbr, and
> prefer it over @acronym when the text is not all capital letters, but I
> get a backtrace when I try to use it in a package description:
>
> Backtrace:
> In ice-9/boot-9.scm:
>   1752:10 16 (with-exception-handler _ _ #:unwind? _ # _)
> In unknown file:
>           15 (apply-smob/0 #<thunk 7fa49b8ea0c0>)
> In ice-9/boot-9.scm:
>     724:2 14 (call-with-prompt _ _ #<procedure default-prompt-handle?>)
> In ice-9/eval.scm:
>     619:8 13 (_ #(#(#<directory (guile-user) 7fa49b8f0c80>)))
> In guix/ui.scm:
>    2185:7 12 (run-guix . _)
>   2148:10 11 (run-guix-command _ . _)
> In ice-9/boot-9.scm:
>   1752:10 10 (with-exception-handler _ _ #:unwind? _ # _)
> In guix/scripts/package.scm:
>     906:9  9 (_)
> In srfi/srfi-1.scm:
>     634:9  8 (for-each #<procedure 7fa49878c9e8 at guix/scripts/pac?> ?)
> In ice-9/boot-9.scm:
>   1747:15  7 (with-exception-handler #<procedure 7fa4899fd900 at ic?> ?)
> In srfi/srfi-1.scm:
>     634:9  6 (for-each #<procedure 7fa489a05520 at guix/scripts/pac?> ?)
> In guix/ui.scm:
>   1558:14  5 (package->recutils _ #<output: file /dev/pts/2> _ # _ # _)
>   1432:23  4 (texi->plain-text _)
> In texinfo.scm:
>   1132:22  3 (parse _)
>    967:36  2 (loop #<input: string 7fa489a08770> (*fragment*) #<pro?> ?)
>      92:2  1 (command-spec _)
> In ice-9/boot-9.scm:
>   1685:16  0 (raise-exception _ #:continuable? _)
>
> ice-9/boot-9.scm:1685:16: In procedure raise-exception:
> Throw to key `parser-error' with args `(#f "Unknown command" abbr)'.
>
> If this isn't an oversight, and not all Texinfo markup is supported,
> that should be noted in the manual.

Oh right, Guile’s Texinfo implementation doesn’t support 100% of Texinfo
markup.

We could write it down in the Guix manual, but we could also improve
Guile’s Texinfo modules, especially since such additions should be
relatively simple.

Thanks,
Ludo’.