Re: [gentoo-dev] [RFC] GLEP 74 post-Council review update [v3]

[Ulrich Mueller <ulm@gentoo.org>]

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>>>>> On Tue, 21 Nov 2017, Michał Górny wrote:

> All paths specified in the Manifest file must consist of characters
> corresponding to valid UTF-8 code points excluding the NULL character
> (``U+0000``), the backwards slash (``\``) and characters classified
> as whitespace in the current version of the Unicode standard
> [#UNICODE]_. It is an error to use Manifest files in directories
> containing files whose names contain the disallowed characters.
> The forward slash (``/``) must be used as path separator.

In addition to whitespace, you should also exclude C0 controls (U+0000
to U+001F), DEL (U+007F), and C1 controls (U+0080 to U+009F).

Rationale, these control characters can leave the user's terminal
in an unusable state when a package manager tries to output such a
filename in a message. As you reserve the backslash for a future
escape mechanism, this shouldn't be a too severe restriction.

Ulrich

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