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Ignore Hangul filler character. There doesn't seem to be much agreement

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on what to do with this but ignoring it seems rightand does improve
things. GitHub issue 3998.
This commit is contained in:
nicm
2025-11-03 09:27:06 +00:00
parent d90b414223
commit 3051076dd1
3 changed files with 16 additions and 2 deletions
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4
screen-write.c
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@@ -2006,6 +2006,10 @@ screen_write_combine(struct screen_write_ctx *ctx, const struct grid_cell *gc)
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
int force_wide = 0, zero_width = 0; int force_wide = 0, zero_width = 0;
/* Ignore U+3164 HANGUL_FILLER entirely. */
if (utf8_is_hangul_filler(ud))
return (1);
/* /*
* Is this character which makes no sense without being combined? If * Is this character which makes no sense without being combined? If
* this is true then flag it here and discard the character (return 1) * this is true then flag it here and discard the character (return 1)

1
tmux.h
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@@ -3499,6 +3499,7 @@ int utf8_cstrhas(const char *, const struct utf8_data *);
int utf8_has_zwj(const struct utf8_data *); int utf8_has_zwj(const struct utf8_data *);
int utf8_is_zwj(const struct utf8_data *); int utf8_is_zwj(const struct utf8_data *);
int utf8_is_vs(const struct utf8_data *); int utf8_is_vs(const struct utf8_data *);
int utf8_is_hangul_filler(const struct utf8_data *);
int utf8_should_combine(const struct utf8_data *, int utf8_should_combine(const struct utf8_data *,
const struct utf8_data *); const struct utf8_data *);
enum hanguljamo_state hanguljamo_check_state(const struct utf8_data *, enum hanguljamo_state hanguljamo_check_state(const struct utf8_data *,

13
utf8-combined.c
View File

@@ -55,7 +55,7 @@ utf8_has_zwj(const struct utf8_data *ud)
return (memcmp(ud->data + ud->size - 3, "\342\200\215", 3) == 0); return (memcmp(ud->data + ud->size - 3, "\342\200\215", 3) == 0);
} }
/* Is this a zero width joiner? */ /* Is this zero width joiner U+200D? */
int int
utf8_is_zwj(const struct utf8_data *ud) utf8_is_zwj(const struct utf8_data *ud)
{ {
@@ -64,7 +64,7 @@ utf8_is_zwj(const struct utf8_data *ud)
return (memcmp(ud->data, "\342\200\215", 3) == 0); return (memcmp(ud->data, "\342\200\215", 3) == 0);
} }
/* Is this a variation selector? */ /* Is this variation selector U+FE0F? */
int int
utf8_is_vs(const struct utf8_data *ud) utf8_is_vs(const struct utf8_data *ud)
{ {
@@ -73,6 +73,15 @@ utf8_is_vs(const struct utf8_data *ud)
return (memcmp(ud->data, "\357\270\217", 3) == 0); return (memcmp(ud->data, "\357\270\217", 3) == 0);
} }
/* Is this Hangul filler U+3164? */
int
utf8_is_hangul_filler(const struct utf8_data *ud)
{
if (ud->size != 3)
return (0);
return (memcmp(ud->data, "\343\205\244", 3) == 0);
}
/* Should these two characters combine? */ /* Should these two characters combine? */
int int
utf8_should_combine(const struct utf8_data *with, const struct utf8_data *add) utf8_should_combine(const struct utf8_data *with, const struct utf8_data *add)