[XeTeX] vertical spacing

[Adam Lindsay]

Hi all.

Thanks to Will and Jonathan's exchange earlier, I'm also smashing the
descenders in the \TeX and \XeTeX logos, which really helps vertical spacing.

With that sorted, I was playing around with ConTeXt's grid typesetting
capabilities, and came across another limitation (I think) imposed by
ATSUI: There's a limit to how close lines can come. Using a 12 point type
within XeTeX, the closest I could get was an interline space of 15.2pt.
Now, that might be the limits of good taste, according to Apple, but not
according to some designers out there. :)

It seems like something in XeTeX is preventing ConTeXt from putting lines
too close together. (When used with pdfTeX, ConTeXt will happily set on a
12/12 grid.) Has anyone else found a solution to this? 
(I tried fooling around with \lineskiplimit, but it didn't do anything
useful here.)

tia,
adam
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 Adam T. Lindsay, Computing Dept.     atl at comp.lancs.ac.uk
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