diff options
Diffstat (limited to 'src/nvim/mbyte.c')
| -rw-r--r-- | src/nvim/mbyte.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/nvim/mbyte.c b/src/nvim/mbyte.c index cf4ac27d1a..223b4d6845 100644 --- a/src/nvim/mbyte.c +++ b/src/nvim/mbyte.c @@ -1837,10 +1837,10 @@ int mb_off_next(const char_u *base, const 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. -/// Composing characters are not included. -int mb_tail_off(const char *base, const char *p_in) +/// Return the offset from `p_in` to the last byte of the codepoint it points +/// to. Can start anywhere in a stream of bytes. +/// Note: Counts individual codepoints of composed characters separately. +int utf_cp_tail_off(const char *base, const char *p_in) { const uint8_t *p = (uint8_t *)p_in; int i; @@ -1866,15 +1866,16 @@ int mb_tail_off(const char *base, const char *p_in) return i; } -/// Return the offset from "p" to the first byte of the character it points -/// into. Can start anywhere in a stream of bytes. -/// Unlike utf_head_off() this doesn't include composing characters and returns a negative value. +/// Return the offset from "p" to the first byte of the codepoint it points +/// to. Can start anywhere in a stream of bytes. +/// Note: Unlike `utf_head_off`, this counts individual codepoints of composed characters +/// separately and returns a negative offset. /// /// @param[in] base Pointer to start of string /// @param[in] p Pointer to byte for which to return the offset to the previous codepoint // /// @return 0 if invalid sequence, else offset to previous codepoint -int mb_head_off(const char_u *base, const char_u *p) +int utf_cp_head_off(const char_u *base, const char_u *p) { int i; int j; |