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feat(mbyte): support extended grapheme clusters including more emoji

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Use the grapheme break algorithm from utf8proc to support grapheme
clusters from recent unicode versions.

Handle variant selector VS16 turning some codepoints into double-width
emoji. This means we need to use ptr2cells rather than char2cells when
possible.
This commit is contained in:
bfredl
2024-08-08 10:42:08 +02:00
parent 4353996d0f
commit cfdf68a7ac
34 changed files with 657 additions and 221 deletions
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2
test/old/testdir/test_functions.vim
View File

@@ -3663,7 +3663,7 @@ func Test_string_reverse()
call assert_equal('', reverse(v:_null_string))
for [s1, s2] in [['', ''], ['a', 'a'], ['ab', 'ba'], ['abc', 'cba'],
\ ['abcd', 'dcba'], ['«-«-»-»', '»-»-«-«'],
\ ['🇦', '🇦'], ['🇦🇧', '🇧🇦'], ['🇦🇧🇨', '🇨🇧🇦'],
\ ['🇦', '🇦'], ['🇦🇧', '🇦🇧'], ['🇦🇧🇨', '🇨🇦🇧'],
\ ['🇦«🇧-🇨»🇩', '🇩»🇨-🇧«🇦']]
call assert_equal(s2, reverse(s1))
endfor

4
test/old/testdir/test_normal.vim
View File

@@ -3897,9 +3897,9 @@ func Test_normal_count_after_operator()
bw!
endfunc
func Test_normal_gj_on_extra_wide_char()
func Test_normal_gj_on_6_cell_wide_unprintable_char()
new | 25vsp
let text='1 foooooooo ar e ins‍zwe1 foooooooo ins‍zwei' .
let text='1 foooooooo ar e ins​zwe1 foooooooo ins​zwei' .
\ ' i drei vier fünf sechs sieben acht un zehn elf zwöfl' .
\ ' dreizehn v ierzehn fünfzehn'
put =text