[luatex] using (pdf)lualatex

Hans Hagen pragma at wxs.nl
Mon Feb 2 11:17:20 CET 2009


Taco Hoekwater wrote:
> 
> Yue Wang wrote:
>> On Mon, Feb 2, 2009 at 5:42 PM, Taco Hoekwater <taco at elvenkind.com> wrote:
>>> Yue Wang wrote:
>>>> Well, I have been suggesting this problem to Hans and Taco several
>>>> times during the last year. In ConTeXt this problem can be split into
>>>> two since ConTeXt use the font cache mechanism (it can dump the
>>>> metrics table from the font and store it as a lua table into the disk)
>>> Calculating boundingboxes implies interpreting the actual curves,
>>> and that eats up lots of memory. I'll see if I can create a shortcut
>>> somewhere. If I don't have to calculate boxes afterward, then there
>>> is no need to interpret and save the curves, and the resulting memory
>>> footprint should be much lower.
>> Great to hear that, and if so, it will also make luatex runs much
>> faster since no calculation is needed.
> 
> Would it be acceptable to have
> 
> 	fontforge.open("file", false)
> 
> which makes to_table return four zeroes in the character boundingboxes?

can be an option indeed, although we loose the ability to calculate the 
  height/depth which is no big deal for cjk fonts but could less optimal 
for other fonts

Hans

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