The talk is for LibreOffice Conference 2015 Aarhus.
Japanese language has two writing mode; horizontal writing (left to right: LTR) and vertical writing (top to bottom; TTB). Nowadays, we, Japanese use mainly horizontal writing mode in office documents, but we still need vertical writing in some situations, such as official letters, diplomas, magazines or novels. Thus, vertical writing mode is less usage but still important functionality for multilingual office suites such as LibreOffice, however, we have observed several defects about vertical writing in LibreOffice. I’ll tell you the typical use-cases of vertical writing with examples, and discuss some issues how they should be fix, or what should be “right”specifications for each cases.