[XeTeX] Access of vertical CJK fonts preceeding with @

[mskala at ansuz.sooke.bc.ca]

On Fri, 7 Dec 2012, Gerrit wrote:
> vertical Japanese texts (not just a paragraph or a text box, but the entire
> document): Everything like columns, page break, sections etc. would work
> flawlessly . Incorporating Western text in the text would also work without
> any problems.

I think it's unlikely that the rotation hack's results would be "flawless"
on any but the simplest texts.  Among other things, vertical Japanese
requires special line-breaking rules - such as period and comma protruding
into the bottom margin if they would otherwise appear at the start of the
next line.  Vertical Japanese is usually set on a grid, both horizontally
and vertically, and grids have always been a problem for TeX - it likes to
make spaces stretchable and expand lines to accomodate math, all of which
features have to be carefully tweaked to preserve a grid layout.  Western
text mixed in raises its own problems; depending on context it might need
to be rotated or not, and the spacing rules for it are unlikely to match
those of generic (La)TeX applied to rotated glyphs.

-- 
Matthew Skala
mskala at ansuz.sooke.bc.ca                 People before principles.
http://ansuz.sooke.bc.ca/