mdwtools 语法包与 graphicx 之间的交互不良

Question

我正在编写一个文档，其中我想同时包含一些图像graphicx和使用包\includegraphics显示一些 BNF 语法，但是当我尝试一起使用它们时，我收到了错误syntaxmdwtoolsundefined control sequence有一些文件名。

失败的最小示例：

\documentclass{article}

\usepackage{syntax}
\usepackage{graphicx}

\begin{document}

\includegraphics{logo_uniud_black}

\end{document}

编译此程序时出现以下错误：

(/usr/share/texlive/texmf-dist/tex/latex/latexconfig/epstopdf-sys.cfg))
! Undefined control sequence.
\filename@simple ...#2\\}\fi \edef \filename@base 
                                                  {#1}
l.8 \includegraphics{logo_uniud_black}

   [omissis]

! Undefined control sequence.
\filename@simple ...#2\\}\fi \edef \filename@base 
                                                  {#1}
l.8 \includegraphics{logo_uniud_black}

(That makes 100 errors; please try again.)

注释掉\usepackage{syntax}可以修复此问题。使用不包含下划线的文件名也可以，这样此代码就不会失败：

\documentclass{article}

\usepackage{syntax}
\usepackage{graphicx}

\begin{document}

\includegraphics{logouniudblack}

\end{document}

为什么我会收到此错误？它与文件名中的下划线有何关系？有没有办法修复它而不重命名我必须包含的所有文件？

---

编辑：

实际上，即使带有下划线的部分名称也会产生问题，因此\include会引发类似的错误，例如源代码：

\documentclass{article}

\usepackage{syntax}

\begin{document}

\include{sintassi_astratta}

\end{document}

我收到这些错误：

(/usr/share/texlive/texmf-dist/tex/latex/mdwtools/syntax.sty) (./bad_doc.aux)
! Undefined control sequence.
\GenericError  ...                                
                                                    #4  \errhelp \@err@     ...
l.7 \include{sintassi_astratta}

! Undefined control sequence.
\GenericError  ...                                
                                                  \let \@err@               ...
l.7 \include{sintassi_astratta}

! Undefined control sequence.
\GenericError  ...                                
                                                  \@empty \def \MessageBreak...
l.7 \include{sintassi_astratta}

! Undefined control sequence.
\GenericError  ...                                
                                                     \endgroup 
l.7 \include{sintassi_astratta}

! Argument of \reserved@b has an extra }.
<inserted text> 
                \par 
l.7 \include{sintassi_astratta}

Runaway argument?
{\usc@builtindischyphen }\futurelet \@let@token \@ifnch astratta.aux
! Paragraph ended before \reserved@b was complete.
<to be read again> 
                   \par 
l.7 \include{sintassi_astratta}

(./sintassi.tex)
! Missing control sequence inserted.
<inserted text> 
                \inaccessible 
l.7 \include{sintassi_astratta}

! Too many }'s.
\@filef@und ...\@let@token \let \discretionary {-}
                                                  {}{}\discretionary {-}{}{}...
l.7 \include{sintassi_astratta}

[1{/var/lib/texmf/fonts/map/pdftex/updmap/pdftex.map}] (./sintassi.tex)
Runaway text?
\@setckpt{sintassi\protect \unhbox \voidb@x \kern .06em\vbox {\hrule \ETC.
! File ended while scanning text of \write.
<inserted text> 
                }
l.7 \include{sintassi_astratta}

! Unbalanced write command.
<write> ... \@setckpt {sintassi_astratta}\@charlb 

l.7 \include{sintassi_astratta}

(./bad_doc.aux
Runaway argument?
{sintassi\protect \global \let \OT 1\textunderscore \unhbox \voidb@x \ETC.
! Paragraph ended before \@input was complete.
<to be read again> 
                   \par 
l.5 

! Missing { inserted.
l.7 ...or immediate help   \endgroup {}\def \par }

)

LaTeX Warning: Label(s) may have changed. Rerun to get cross-references right.

! Missing } inserted.
<inserted text> 
                }
l.9 \end{document}

! Missing } inserted.
<inserted text> 
                }
l.9 \end{document}

! Extra \endgroup.
<recently read> \endgroup 

l.9 \end{document}

 )

如果我没记错的话，不是在寻找而是sintassi_astratta.tex在寻找sintassi.tex。这似乎syntax是在以某种方式重新定义下划线，从而破坏了一切。

Answer 1

该syntax包有一个nounderscore选项；然后您需要使用它\_作为复合名称。

如果你希望在数学模式之外有_含义，那么使用\_

\input{\detokenize{file_name}}

\include对于或也类似\includegraphics。因此

\documentclass{article}

\usepackage[nounderscore]{syntax}
\usepackage{graphicx}

\begin{document}

\includegraphics{logo_uniud_black}

\end{document}

将会起作用

\documentclass{article}

\usepackage{syntax}
\usepackage{graphicx}

\begin{document}

\includegraphics{\detokenize{logo_uniud_black}}

\end{document}

Answer 2

用于\string_下划线

\includegraphics{/tmp/logo\string_uniud\string_black}