graphemes: fix nth_prev_grapheme_boundary calculation.

4 years ago · ad58286dc7
parent 1ae7c43391
commit ad58286dc7
1 changed files with 1 additions and 1 deletions
--- a/helix-core/src/graphemes.rs
+++ b/helix-core/src/graphemes.rs
@ -62,7 +62,7 @@ pub fn nth_prev_grapheme_boundary(slice: RopeSlice, char_idx: usize, n: usize) -
            }
        }
    }
-    let tmp = byte_to_char_idx(chunk, byte_idx + chunk_byte_idx);
+    let tmp = byte_to_char_idx(chunk, byte_idx - chunk_byte_idx);
    chunk_char_idx + tmp
 }