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-rw-r--r--src/nvim/mbyte.c18
1 files changed, 6 insertions, 12 deletions
diff --git a/src/nvim/mbyte.c b/src/nvim/mbyte.c
index ce44f6c619..1d1cd5e271 100644
--- a/src/nvim/mbyte.c
+++ b/src/nvim/mbyte.c
@@ -1609,7 +1609,8 @@ void show_utf8(void)
msg((char *)IObuff);
}
-/// Return offset from "p" to the first byte of the character it points into.
+/// Return offset from "p" to the start of a character, including composing characters.
+/// "base" must be the start of the string, which must be NUL terminated.
/// If "p" points to the NUL at the end of the string return 0.
/// Returns 0 when already at the first byte of a character.
int utf_head_off(const char_u *base, const char_u *p)
@@ -1850,10 +1851,9 @@ int mb_off_next(char_u *base, char_u *p)
return i;
}
-/*
- * Return the offset from "p" to the last byte of the character it points
- * into. Can start anywhere in a stream of bytes.
- */
+/// Return the offset from "p" to the last byte of the character it points
+/// into. Can start anywhere in a stream of bytes.
+/// Composing characters are not included.
int mb_tail_off(char_u *base, char_u *p)
{
int i;
@@ -2089,8 +2089,7 @@ const char *mb_unescape(const char **const pp)
size_t buf_idx = 0;
uint8_t *str = (uint8_t *)(*pp);
- // Must translate K_SPECIAL KS_SPECIAL KE_FILLER to K_SPECIAL and CSI
- // KS_EXTRA KE_CSI to CSI.
+ // Must translate K_SPECIAL KS_SPECIAL KE_FILLER to K_SPECIAL.
// Maximum length of a utf-8 character is 4 bytes.
for (size_t str_idx = 0; str[str_idx] != NUL && buf_idx < 4; str_idx++) {
if (str[str_idx] == K_SPECIAL
@@ -2098,11 +2097,6 @@ const char *mb_unescape(const char **const pp)
&& str[str_idx + 2] == KE_FILLER) {
buf[buf_idx++] = (char)K_SPECIAL;
str_idx += 2;
- } else if ((str[str_idx] == K_SPECIAL)
- && str[str_idx + 1] == KS_EXTRA
- && str[str_idx + 2] == KE_CSI) {
- buf[buf_idx++] = (char)CSI;
- str_idx += 2;
} else if (str[str_idx] == K_SPECIAL) {
break; // A special key can't be a multibyte char.
} else {