Mark all rust-unic crates as unmaintained

[evilpie]

This marks these crates as unmaintained as discussed in #2414:

unic
unic-bidi
unic-char
unic-char-basics
unic-char-property
unic-char-range
unic-cli
unic-common
unic-emoji
unic-emoji-char
unic-idna
unic-idna-mapping
unic-idna-punycode
unic-normal
unic-segment
unic-ucd
unic-ucd-age
unic-ucd-bidi
unic-ucd-block
unic-ucd-case
unic-ucd-category
unic-ucd-common
unic-ucd-core
unic-ucd-hangul
unic-ucd-ident
unic-ucd-name
unic-ucd-name_aliases
unic-ucd-normal
unic-ucd-segment
unic-ucd-version
unic-utils

unic-ucd-utils was already yanked so I ignored it.
unic-ucd-core and unic-utils haven't been updated 8 years and weren't even part of the code on GitHub anymore.

I suggested https://crates.io/crates/icu as an alternative, but I am open to suggestions. @hsivonen

[hsivonen]

I suggested https://crates.io/crates/icu as an alternative, but I am open to suggestions.

icu is the closest one-item match for the whole of unic, but 1) idna and bidi functionality is outside ICU4X and 2) there are some unic- crates that don't appear to have a maintained alternative.

If you want a single thing that a script can copy to all advisories, it would probably be helpful to expand on mere "icu" to say that most of the functionality of the unic family of crates is covered by the combination of icu, idna, and unicode-bidi.

If you are OK with per-crate suggestions, here's a quick attempt:

unic

icu + idna + unicode-bidi

unic-bidi

unicode-bidi

unic-char

icu_properties

unic-char-basics

(I'm not aware of a replacement.)

unic-char-property

icu_properties

unic-char-range

The functionality is in the core Rust language.

unic-cli

(I'm not aware of a replacement.)

unic-common

(Looks like a unic-specific code organization thing; not relevant to have a replacement.)

unic-emoji

icu_properties

unic-emoji-char

icu_properties

unic-idna

idna

unic-idna-mapping

Technically, icu_normalizer::uts46 / idna_mapping, but apps should use idna.

unic-idna-punycode

idna::punycode

unic-normal

icu_normalizer / unicode-normalization

unic-segment

icu_segmenter / unicode-segmentation

unic-ucd

icu_properties

unic-ucd-age

(I'm not aware of a replacement.)

unic-ucd-bidi

icu_properties

unic-ucd-block

(I'm not aware of a replacement.)

unic-ucd-case

icu_properties

unic-ucd-category

icu_properties

unic-ucd-common

icu_properties

unic-ucd-core

(Looks like a unic-specific code organization thing; not relevant to have a replacement.)

unic-ucd-hangul

icu_normalizer / unicode-normalization

unic-ucd-ident

icu_properties / unicode-ident

unic-ucd-name

(I'm not aware of a replacement.)

unic-ucd-name_aliases

(I'm not aware of a replacement.)

unic-ucd-normal

icu_normalizer

unic-ucd-segment

icu_properties

unic-ucd-version

(Looks like a unic-specific code organization thing; not relevant to have a replacement.)

unic-utils

(Looks like a unic-specific code organization thing; not relevant to have a replacement.)

[djc]

I think the work of doing per-crate recommendations should be worth it.

@hsivonen thanks for the suggestions!

[evilpie]

Wow. Thank you for putting this together. I will update the PR soon to include your suggestions.

[djc]

Thanks for all the effort! Going to merge this now, can always tweak things in response to feedback.

[djc]

Oh, fun, this broke the ID assignment workflow because the PR title (which usually includes all the assigned IDs) is too long.