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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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GPG key ID: 5BBD4992C116573F
13 changed files with 34934 additions and 40 deletions
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terminal.c
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@ -2295,7 +2295,7 @@ term_print(struct terminal *term, wchar_t wc, int width)
cell->wc = term->vt.last_printed = wc;
cell->attrs = term->vt.attrs;
#if FOOT_UNICODE_COMBINING
#if FOOT_UNICODE_MAX_COMBINING_CHARS > 0
row->comb_chars[term->grid->cursor.point.col].count = 0;
#endif