Map Script::Unknown to Zzzz short name
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This is specified in UAX#24 (https://www.unicode.org/reports/tr24/#Relation_To_ISO15924) And matches HarfBuzz's definition https://github.com/harfbuzz/harfbuzz/blob/0e6e18e74f31f4f3fd3817086b03490a24714888/src/hb-script-list.h#L240
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…t for harfbuzz (#38704) Replaces a big match statement with a call to `unicode_script`'s `Script::short_name` method which has the same big match statement. We special case `Script::Unknown` because the `short_name` method returns empty string for that variant, but harfbuzz represents it with `Zzzz`. EDIT: `Zzzz` seems to be in the spec so I've sent a PR to `unicode_script` to use it: unicode-rs/unicode-script#23 EDIT: And unicode-rs/unicode-script#24 which would allow us to remove this method entirely. Signed-off-by: Nico Burns <nico@nicoburns.com>
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…t for harfbuzz (servo#38704) Replaces a big match statement with a call to `unicode_script`'s `Script::short_name` method which has the same big match statement. We special case `Script::Unknown` because the `short_name` method returns empty string for that variant, but harfbuzz represents it with `Zzzz`. EDIT: `Zzzz` seems to be in the spec so I've sent a PR to `unicode_script` to use it: unicode-rs/unicode-script#23 EDIT: And unicode-rs/unicode-script#24 which would allow us to remove this method entirely. Signed-off-by: Nico Burns <nico@nicoburns.com>
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This is specified in UAX#24 (https://www.unicode.org/reports/tr24/#Relation_To_ISO15924)
And matches HarfBuzz's definition https://github.com/harfbuzz/harfbuzz/blob/0e6e18e74f31f4f3fd3817086b03490a24714888/src/hb-script-list.h#L240