[XeTeX] fontsize option 12pt in koma-script makes \left(\right) produce wrong lengths with unicode-math

[Ross Moore]

Hi Tobias,

On 17/11/2010, at 9:34 AM, Tobias Schoel wrote:

> Hi,
> 
> I think the title says it all: Adding the option 12pt to the scrartcl class (koma script) makes \left(\right) don't work properly in display math mode.

Do you get what I see, in the attached image ?

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The left parenthesis seems to be a tiny bit shorter
than the right one. And the superscript is not fully
enclosed, as it is when 10pt is used, or with LuaLaTeX
as the engine.

> 
> Minimal example:
> 
> \documentclass[12pt]{scrartcl}
> 
> \usepackage{fontspec}
> \usepackage{unicode-math}
> 
> \setmainfont[Ligatures=TeX]{TeX Gyre Pagella}
> \setmathfont[Scale=MatchUppercase]{Asana Math}
> 
> \begin{document}
> 
> \[\left(\left(\frac{1}{2}\right)^2\right)\]
> 
> \end{document}
> 
> Without the 12pt option it works correctly.
> 
> Why is that and how to help?
> 
> bye

With \listfiles, I'm using:

 *File List*
scrartcl.cls    2010/06/17 v3.06 KOMA-Script document class (article)
scrkbase.sty    2010/06/17 v3.06 KOMA-Script package (KOMA-Script-dependent basics and keyval usage)
 scrbase.sty    2010/06/17 v3.06 KOMA-Script package (KOMA-Script-independent basics and keyval usage)
  keyval.sty    1999/03/16 v1.13 key=value parser (DPC)
scrlfile.sty    2009/03/25 v3.03 KOMA-Script package (loading files)
tocbasic.sty    2010/06/09 v3.06 KOMA-Script package (handling toc-files)
scrsize12pt.clo    2010/06/17 v3.06 KOMA-Script font size class option (12pt)
typearea.sty    2010/06/17 v3.06 KOMA-Script package (type area)
fontspec.sty    2010/11/07 v2.1d Advanced font selection for XeLaTeX/LuaLaTeX
   expl3.sty    2010/10/02 v2056 L3 Experimental code bundle wrapper
 l3names.sty    2010/10/03 v2064 L3 Experimental Naming Scheme for TeX Primitives
    etex.sty    1998/03/26 v2.0 eTeX basic definition package (PEB)
l3basics.sty    2010/10/03 v2063 L3 Experimental basic definitions
 l3expan.sty    2010/09/20 v2037 L3 Experimental Argument Expansion module
    l3tl.sty    2010/10/03 v2063 L3 Experimental Token Lists
   l3int.sty    2010/10/09 v2070 L3 Experimental Integer module
 l3quark.sty    2010/09/20 v2036 L3 Experimental Quark Commands
   l3seq.sty    2010/03/29 v1879 L3 Experimental sequences and stacks
  l3toks.sty    2010/09/20 v2037 L3 Experimental Token Registers
   l3prg.sty    2010/10/03 v2063 L3 Experimental control structures
 l3clist.sty    2010/10/09 v2071 L3 Experimental comma separated lists
 l3token.sty    2010/10/03 v2063 L3 Experimental token investigation and manipulation
  l3prop.sty    2010/03/21 v1857 L3 Experimental Property Lists
   l3msg.sty    2010/10/02 v2052 L3 Experimental LaTeX Messages module
    l3io.sty    2010/10/03 v2063 L3 Experimental i/o module
  l3skip.sty    2010/10/03 v2063 L3 Experimental skip registers
   l3box.sty    2010/09/26 v2048 L3 Experimental Box module
l3keyval.sty    2010/04/11 v1890 L3 Experimental keyval processing
  l3keys.sty    2010/10/13 v2075 L3 Experimental key-value support
l3precom.sty    2010/02/09 v1793 L3 Experimental precompilation module
  l3xref.sty    2010/02/09 v1786 L3 Experimental cross referencing
  l3file.sty    2010/03/21 v1853 L3 Experimental file loading
    l3fp.sty    2010/09/19 v2029 L3 Experimental floating-point operations
l3luatex.sty    2010/07/18 v1985 L3 Experimental LuaTeX functions
    calc.sty    2007/08/22 v4.3 Infix arithmetic (KKT,FJ)
  xparse.sty    2010/05/23 v1927 Generic document command parser
 xkeyval.sty    2008/08/13 v2.6a package option processing (HA)
 xkeyval.tex    2008/08/13 v2.6a key=value parser (HA)
fontspec-patches.sty    2010/11/07 v2.1d Advanced font selection for XeLaTeX/LuaLaTeX
fixltx2e.sty    2006/09/13 v1.1m fixes to LaTeX
 fontenc.sty
  eu1enc.def    2010/05/27 v0.1h Experimental Unicode font encodings
  eu1lmr.fd    2009/10/30 v1.6 Font defs for Latin Modern
xunicode.sty    2010/11/06 v0.96 provides access to latin accents and many other characters in Unicode lower plane
fontspec.cfg
unicode-math.sty    2010/10/26 v0.5b Unicode maths in XeLaTeX and LuaLaTeX
 ifxetex.sty    2009/01/23 v0.5 Provides ifxetex conditional
ifluatex.sty    2010/03/01 v1.3 Provides the ifluatex switch (HO)
l3keys2e.sty    2009/08/24 v1494 Parsing LaTeX3 keyvals as LaTeX2e package options
catchfile.sty    2010/04/28 v1.5 Catches the contents of a file (HO)
infwarerr.sty    2010/04/08 v1.3 Providing info/warning/message (HO)
 ltxcmds.sty    2010/04/26 v1.7 LaTeX kernel commands for general use (HO)
etexcmds.sty    2010/01/28 v1.3 Prefix for e-TeX command names (HO)
unicode-math-table.tex
 ***********

Most of this should be up to date, with GitHub.

Note that:  unicode-math.sty    2010/10/26 v0.5b 
is actually  v0.5c  --- there's a typo in the package.
(The real v0.5b has an earlier date.)

> 
> Toscho


Hope this helps,

	Ross

------------------------------------------------------------------------
Ross Moore                                       ross.moore at mq.edu.au 
Mathematics Department                           office: E7A-419      
Macquarie University                             tel: +61 (0)2 9850 8955
Sydney, Australia  2109                          fax: +61 (0)2 9850 8114
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