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简单的纯 TeX 代码中 \pspicture 的问题

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简单的纯 TeX 代码中 \pspicture 的问题

编写以下非常简单的程序时，我遇到了一些问题。我习惯用纯 TeX 编写，在这种情况下，我尝试使用 PSTricks 制作图片，并首先使用 \pspicture 调整其大小。该程序是：

\input pstricks
\pspicture (0,0)(5,5)
\endpspicture
\bye

但是当我使用 TeX 进行编译时，遇到了以下错误：

Command Line:   tex.exe --src --interaction=errorstopmode "figura.tex"
Startup Folder: C:\Users\MT\Documents\TeX

This is TeXk, Version 3.14159265 (TeX Live 2015/W32TeX) (preloaded format=tex)
 Source specials enabled.
(./figura.tex (c:/texlive/texmf-dist/tex/generic/pstricks/pstricks.tex
we are running tex and have to define some LaTeX commands ...
(c:/texlive/texmf-dist/tex/generic/xkeyval/pst-xkey.tex
2005/11/25 v1.6 PSTricks specialization of xkeyval (HA)
(c:/texlive/texmf-dist/tex/generic/xkeyval/xkeyval.tex
(c:/texlive/texmf-dist/tex/generic/xkeyval/xkvutils.tex
(c:/texlive/texmf-dist/tex/generic/xkeyval/keyval.tex))
2014/12/03 v2.7a key=value parser (HA)
(c:/texlive/texmf-dist/tex/generic/xkeyval/xkvtxhdr.tex
2005/02/22 v1.1 xkeyval TeX header (HA))))
(c:/texlive/texmf-dist/tex/generic/pstricks/pst-fp.tex
`pst-fp' v0.05, 2010/01/17 (hv))
(c:/texlive/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.tex
(c:/texlive/texmf-dist/tex/generic/pgf/utilities/pgfutil-common-lists.tex))
(c:/texlive/texmf-dist/tex/generic/pgf/utilities/pgfkeys.code.tex
(c:/texlive/texmf-dist/tex/generic/pgf/utilities/pgfkeysfiltered.code.tex))
(c:/texlive/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmath.code.tex
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathcalc.code.tex
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathutil.code.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathparser.code.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.code.tex
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.basic.code.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.trigonometric.code
.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.random.code.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.comparison.code.te
x) (c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.base.code.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.round.code.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.misc.code.tex)
(c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.integerarithmetics
.code.tex))) (c:/texlive/texmf-dist/tex/generic/pgf/math/pgfmathfloat.code.tex)
))
`PSTricks' v2.64b  <2015/14/11> (tvz)
(c:/texlive/texmf-dist/tex/generic/pstricks/pstricks.con))
! Undefined control sequence.
\endpspicture ...z@ \box \pst@hbox \else \fboxsep 
                                                  =0pt \fbox {\rule [-\pst@s...
l.5 \endpspicture

? x
No pages of output.
Transcript written on figura.log.

_____________________________________________________________________

 TeX Compilation Report (Pages: 0)

 Errors: 1   Warnings: 0   Bad Boxes: 0
_____________________________________________________________________

有什么问题？

答案1

pstricks.tex让我们看看在 TeX Live 2014 结尾处找到的相关代码（带[...]I 的代码不重要）

\def\endpspicture{%
  [...]
  \if@star\setbox\pst@hbox=\hbox{\clipbox@@\z@}\fi%
  \leavevmode\box\pst@hbox%
  \endgroup%
  \psset[pstricks]{shift=0}% reset value
}

TeX Live 2015 中同样如此

\def\endpspicture{%
  [...]
  \if@star\setbox\pst@hbox=\hbox{\clipbox@@\z@}\fi
  \leavevmode\ifdim\overfullrule=\z@\box\pst@hbox\else
  \fboxsep=0pt
  \fbox{\rule[-\pst@shift]{0pt}{\ht\pst@hbox}\rule{\wd\pst@hbox}{0pt}}\fi
  \endgroup%
  \psset[pstricks]{shift=0}% reset value
}

这是 TeX Live 2016 的版本

\def\endpspicture{%
  [...]
  \if@star\setbox\pst@hbox=\hbox{\clipbox@@\z@}\fi
  \leavevmode
  \ifdim\overfullrule=\z@
    \box\pst@hbox
  \else
    \expandafter\ifx\csname @latexerr\endcsname\relax
      \box\pst@hbox
    \else  %    do we have LaTeX? 
      \fboxsep=0pt
      \fbox{\rule[-\pst@shift]{0pt}{\ht\pst@hbox}\rule{\wd\pst@hbox}{0pt}}%
    \fi
  \fi
  \endgroup
  \psset[pstricks]{shift=0}% reset value
}

您可以清楚地看到，如果\overfullrule设置为大于 0pt 的值（这是纯 TeX 中的默认值），则在使用 TeX Live 2015 时会执行一些 LaTeX 代码。

解决方案：更新您的 TeX 发行版。

如果不可能，请设置\overfullrule为 0pt

\input pstricks

\overfullrule=0pt

\pspicture (0,0)(5,5)
\endpspicture
\bye

或者，

\input pstricks

\catcode`@=11
\def\fboxsep#1\fi{\box\pst@hbox\fi}
\catcode`@=12

\pspicture (0,0)(5,5)
\endpspicture
\bye

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