[NTG-pdftex] [ pdftex-Bugs-747 ] \letterspacefont and \pdffontexpand, again

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Bugs item #747, was opened at 2007-03-09 08:39
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Category: hz
Group: v1.40.1
Status: Open
Resolution: Accepted
Priority: 5
Submitted By: Robert (schlcht)
Assigned to: The Thanh Han (hanthethanh)
Summary: \letterspacefont and \pdffontexpand, again

Initial Comment:
When expanding a letterspaced font, the base font will
be expanded, too, resulting in the error `font has been
expanded with different parameters' when the base font
is expanded again:

\letterspacefont\lsfont\font 100
\pdffontexpand\lsfont 20 20 5 autoexpand
\pdffontexpand\font   20 20 5 autoexpand
Z\bye


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Comment By: Nobody (None)
Date: 2007-03-19 16:37

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Hello,

I do not think that \pdfexpandfont is a good name for a new 
primitive, as it is too easy to confuse with \pdffontexpand. 
What about \pdfexpandnewfont, as -- if I understand 
correctly -- a new font is loaded?


Jonathan

P.S: Thank you for creating pdfTeX!

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Comment By: The Thanh Han (hanthethanh)
Date: 2007-03-11 01:48

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Phil Taylor has a suggestion that seems great to me:
introduce a new primitive \pdfexpandfont instead. How do you
see it?

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Comment By: Martin Schröder (oneiros)
Date: 2007-03-11 00:54

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Forget that comment. Of course a change of \pdffontexpand
has to be considered carefully. By you. :-)

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Comment By: Martin Schröder (oneiros)
Date: 2007-03-11 00:52

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No. It's an undocumented primitive. ;-)

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Comment By: The Thanh Han (hanthethanh)
Date: 2007-03-09 22:58

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sigh. A mistake when implementing the \pdffontexpand
primitive: it should load a new font for expansion, instead
of expanding a loaded font. Too late for change now?

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