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063c76f500
Nvim uses utf8proc or an older process involving "src/unicode/"
and "download-unicode-files.sh" to decouple unicode characters
from "mbyte.c".
These unicode patches should be auto N/A but the diff hunk xfuncname
is wrong for utf_char2cells().
Is it because of the `#ifdef`?
Need a volunteer to inspect if these patches still have relevant
changes
Nvim
```c
/// same as utf_composinglike but operating on UCS-4 values
bool utf_iscomposing(int c1, int c2, GraphemeState *state)
{
return (!utf8proc_grapheme_break_stateful(c1, c2, state)
|| arabic_combine(c1, c2));
}
```
Vim
```c
/*
* Return TRUE if "c" is a composing UTF-8 character. This means it will be
* drawn on top of the preceding character.
* Based on code from Markus Kuhn.
*/
int
utf_iscomposing(int c)
{
// Sorted list of non-overlapping intervals.
// Generated by ../runtime/tools/unicode.vim.
static struct interval combining[] =
{
{0x0300, 0x036f},
{0x0483, 0x0489},
{0x0591, 0x05bd},
// ...
{0x0300, 0x036f},
{0x0483, 0x0489},
{0x0591, 0x05bd},
};
return intable(combining, sizeof(combining), c);
}
```