No Vertical Pairs in Font ‘I.Ming’

[E8D08F]

Hello. Thank you for the time and effort you put into for building this script. There is an issue I have encountered when processing the Chinese font family ‘I.Ming’ (ichitenfont/I.Ming, https://github.com/ichitenfont/I.Ming/blob/master/8.00/I.Ming-8.00.ttf). It says vertical pairs are not found (横書き works fine):

Skipped because no pairs: "I.Ming (vertical)"

I am wondering whether it is because that the font itself is missing some vertical hintings. Thank you for taking the time to address this issue.

[kojiishi]

Hi, thank you for filing the issue.

I looked at the font. It looks like vertical glyphs of parenthesis and punctuation characters are either a) they are positioned in the middle, not upper/lower half, or b) not set in vertical (rotated.)

This tool examines the glyphs, and if they're not left/right half of the em-box (or upper/lower in vertical,) it doesn't apply kernings, because doing so will cause glyph overlaps.

To see them in your browser, you can use the test HTML to see relevant characters of fonts you built (or your original font.) Check the vertical checkbox to see them in vertical flow.