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unicode-combine: remove utf8proc dependency

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We only used utf8proc to try to pre-compose a glyph from a base and
combining character.

We can do this ourselves by using a pre-compiled table of valid
pre-compositions. This table isn't _that_ big, and binary searching it
is fast.

That is, for a very small amount of code, and not too much extra RO
data, we can get rid of the utf8proc dependency.
This commit is contained in:
Daniel Eklöf 2020-05-02 17:29:00 +02:00
parent 8389c76549
commit d945b68b73
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13 changed files with 34934 additions and 40 deletions
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8
CHANGELOG.md
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@ -22,12 +22,8 @@
* Right mouse button extends the current selection.
* `CSI Ps ; Ps ; Ps t` escape sequences for the following parameters:
`11t`, `13t`, `13;2t`, `14t`, `14;2t`, `15t`, `19t`.
* Unicode combining characters. This feature is optional. By default,
it is enabled if
[utf8proc](https://github.com/JuliaStrings/utf8proc) is available,
but can be explicitly disabled or enabled at compile time with
`meson -Dunicode-combining=disabled|enabled`.
* Unicode combining characters. This feature is compile time
optional. See [README.md](README.md#unicode-combining]) for details.
### Changed