Inline cutting note (warichu in Japanese) is a type of inline notation, where two lines of small characters are inserted into the text, dividing a line into two sub lines. Inline cutting note is usually used in vertical writing mode. It is very infrequently used in horizontal writing mode. (see Inline Cutting Note (Warichu))

The following illustrates a cutting note in Japanese text.

For more details, see this GitHub issue, which is being used to track this gap. Please add any discussion there, and not to this issue.

The frequency of use of the inline cutting note is not so high in Chinese, so this gap is labelled with an advanced priority.