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如何使用带有 fontspec 的 XeLaTeX 编译 IEEE Access 模板？

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如何使用带有 fontspec 的 XeLaTeX 编译 IEEE Access 模板？

该模板可以在这里访问：

http://ieeeauthorcenter.ieee.org/create-your-ieee-article/use-authoring-tools-and-ieee-article-templates/ieee-article-templates/templates-ieee-access/

进行了一些编辑以使模板兼容 Linux：

  1. mv logo.png Logo.png
  2. mv notaglinelogo.png notaglineLogo.png

进行了一些编辑以使包与 xelatex 兼容：

编辑ieeeaccess.cls文件：

  1. \RequirePackage{color}用。。。来代替\RequirePackage{xcolor}
  2. \RequirePackage{spotcolor}用。。。来代替\RequirePackage{xespotcolor}

现在access.tex可以与 编译xelatex。

但是，如果我添加fontspec包，我会收到不合理的\c_sys_year_int错误，如下所示：

This is XeTeX, Version 3.14159265-2.6-0.99998 (TeX Live 2017) (preloaded format=xelatex)
 restricted \write18 enabled.
entering extended mode
(./access.tex
LaTeX2e <2017-04-15>
Babel <3.18> and hyphenation patterns for 84 language(s) loaded.
(./ieeeaccess.cls (./IEEEtran.cls
Document Class: IEEEtran 2015/08/26 V1.8b by Michael Shell
-- See the "IEEEtran_HOWTO" manual for usage information.
-- http://www.michaelshell.org/tex/ieeetran/

LaTeX Font Warning: Font shape `TU/ptm/m/n' undefined
(Font)              using `TU/lmr/m/n' instead on input line 503.

-- Using 8.5in x 11in (letter) paper.
-- Using DVI output.
-- This is a 10 point document.

LaTeX Font Warning: Font shape `TU/ptm/bx/n' undefined
(Font)              using `TU/ptm/m/n' instead on input line 1090.


LaTeX Font Warning: Font shape `TU/ptm/m/it' undefined
(Font)              using `TU/ptm/m/n' instead on input line 1090.


LaTeX Font Warning: Font shape `TU/ptm/bx/it' undefined
(Font)              using `TU/ptm/bx/n' instead on input line 1090.

) (/usr/local/texlive/2017/texmf-dist/tex/generic/oberdiek/ifpdf.sty)
(/usr/local/texlive/2017/texmf-dist/tex/latex/xkeyval/xkeyval.sty
(/usr/local/texlive/2017/texmf-dist/tex/generic/xkeyval/xkeyval.tex
(/usr/local/texlive/2017/texmf-dist/tex/generic/xkeyval/xkvutils.tex
(/usr/local/texlive/2017/texmf-dist/tex/generic/xkeyval/keyval.tex))))
(/usr/local/texlive/2017/texmf-dist/tex/latex/xcolor/xcolor.sty
(/usr/local/texlive/2017/texmf-dist/tex/latex/graphics-cfg/color.cfg)
(/usr/local/texlive/2017/texmf-dist/tex/latex/graphics-def/xetex.def))
(/usr/local/texlive/2017/texmf-dist/tex/xelatex/xespotcolor/xespotcolor.sty
(/usr/local/texlive/2017/texmf-dist/tex/generic/ifxetex/ifxetex.sty)
(/usr/local/texlive/2017/texmf-dist/tex/latex/everypage/everypage.sty)
(/usr/local/texlive/2017/texmf-dist/tex/latex/graphics/graphics.sty
(/usr/local/texlive/2017/texmf-dist/tex/latex/graphics/trig.sty)
(/usr/local/texlive/2017/texmf-dist/tex/latex/graphics-cfg/graphics.cfg))))
(/usr/local/texlive/2017/texmf-dist/tex/latex/fontspec/fontspec.sty
(/usr/local/texlive/2017/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
(/usr/local/texlive/2017/texmf-dist/tex/latex/l3kernel/expl3.sty
(/usr/local/texlive/2017/texmf-dist/tex/latex/l3kernel/expl3-code.tex
! Missing number, treated as zero.
<to be read again> 
                   \gdef 
l.22516 ...nst:Nn \c_sys_year_int  { \tex_year:D }

?

我怎样才能消除这个问题？

答案1

该类重新定义了原始内容\year，这引起了expl3的混淆。

在类之前加载expl3：

 \RequirePackage{expl3}
 \documentclass{ieeeaccess}

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