https://sourceware.org/bugzilla/show_bug.cgi?id=32003
--- Comment #23 from Benjamin Drung <bdrung at posteo dot de> ---
(In reply to H.J. Lu from comment #14)
> (In reply to Benjamin Drung from comment #13)
>
> > > Will "%[string]" escape work?
> >
> > Like this?
> >
> > -Wl,--encoded-package-metadata={%[quot]type%[quot]:
> > %[quot]deb%[quot]%[comma]%[quot]os%[quot]:
> > %[quot]ubuntu%[quot]%[comma]%[quot]name%[quot]:
> > %[quot]dpkg%[quot]%[comma]%[quot]version%[quot]:%[quot]1.22.
> > 6ubuntu15%[quot]%[comma]%[quot]architecture%[quot]:%[quot]amd64%[quot]}
>
> It should be %[quote]".
You suggested to borrow from HTML's Named Character References and
https://dev.w3.org/html5/spec-LC/named-character-references.html says that
U+00022 has the name "quot" (not "quote").
> Will adding support for "%[string]" to existing
> --package-metadata option break anything?
It might theoretical break existing use cases.
--package-metadata='{"version":"1.0%2"}'
The only safe option that I could come up with is to use a marker that would be
invalid JSON. For example: If the string starts with a percent character,
decode it:
--package-metadata='%{"foo":"bar"%[comma]"baz":42}'
would be invalid JSON and decode to:
--package-metadata='{"foo":"bar","baz":42}'
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