On Wed, Nov 30, 2011 at 05:10:07AM +0200, Khaled Hosny wrote:
> > A\textcolor{red}{^^^^0308}\\ % (3)
> It seems Charis SIL composes accented glyphs, try Gentium Basic instead
> (GenBasR.ttf).
Thanks, the result is correct, the box contents after luacolor's
processing is:
....\EU2/GentiumBasic(0)/m/n/100 A
....\pdfliteral direct"1 0 0 rg 1 0 0 RG"
....\EU2/GentiumBasic(0)/m/n/100 Ì
The part in the PDF with/without color:
% without color:
1 0 0 1 72 590.679 Tm [<0024>]TJ
1 0 0 1 126.191 606.246 Tm [<0301>]TJ
% with color:
1 0 0 1 72 491.053 Tm [<0024>]TJ
1 0 0 rg 1 0 0 RG
1 0 0 1 126.191 506.619 Tm [<0301>]TJ
In case of XeTeX:
.\EU1/GentiumBasic(0)/m/n/100 A
.\special{color push rgb 1 0 0}
.\EU1/GentiumBasic(0)/m/n/100 Ì210
.\special{color pop}
The PDF stuff:
% without color:
0 -99.63 Td[<0024>]TJ
54.19 15.57 Td[<0301>]TJ
% with color:
-54.19 -115.2 Td[<0024>]TJ
ET 1 0 0 RG 1 0 0 rg BT /F1 99.626 Tf
59.3 -278.84 Td[<0301>]TJ
% with color via \special{pdf:code ...}:
0 -378.46 Td[<0024>]TJ
ET 1 0 0 rg 1 0 0 RG BT /F1 99.626 Tf
59.3 -378.46 Td[<0301>]TJ
It seems that in XeTeX the color cannot be inserted without
breaking the PDF text sections (BT...ET). \special{pdf:literal direct ...}
(or short \special{pdf:code ...}) is not equivalent to
\pdfliteral direct{...} but rather to \pdfliteral page{...}
that ends a text section in the PDF output.
If someone want's this issue fixed, make a feature request
for XeTeX/xdvipdfmx to provide a real "\pdfliteral direct"/
"direct mode for colors" without breaking text sections.
Yours sincerely
Heiko Oberdiek
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