1 files changed, 2 insertions, 0 deletions
diff --git a/src/text.h b/src/text.h
index 213cf9e..85eb522 100644
--- a/src/text.h
+++ b/src/text.h
@@ -29,6 +29,8 @@ uint32_t text_num_lines(struct text *text);
 uint32_t text_line_length(struct text *text, uint32_t lineidx);
 uint32_t text_line_size(struct text *text, uint32_t lineidx);
 uint32_t text_col_to_byteindex(struct text *text, uint32_t line, uint32_t col);
+uint32_t text_byteindex_to_col(struct text *text, uint32_t line,
+                               uint32_t byteindex);
 
 struct text_chunk {
   uint8_t *text;