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使用 tcolorbox 排版源代码

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使用 tcolorbox 排版源代码

我想使用tcolorbox包排版源代码。这个包如何不创建静态框，而是根据我编写的代码的宽度（垂直和水平）进行调整？另外，如果一行太长，我想换行。我可以这样做吗？

答案1

使用tcolorbox及其listings库，您可以用来\newtcblisting定义列表的新环境（使用后台的listings包）；如果您使用hbox的选项tcolorbox，它的宽度将动态适应其内容的宽度，但是，唉！现在该框不允许分页符，并且自动换行符也得不到很好的支持（如果breaklines=true作为列表的选项传递，代码将会中断，但现在该框对于长行不会表现得很好）。

\documentclass{article}
\usepackage[many]{tcolorbox}
\tcbuselibrary{listings}

\newtcblisting{mylisting}{
  listing only,
  hbox,
  colframe=cyan,
  colback=cyan!10,
  listing options={
    basicstyle=\small\ttfamily,
    breaklines=true,
    columns=fullflexible
  },
}

\begin{document}

\begin{mylisting}
int main(int ac, char *av[]) 
{
  printf("Hello, World");
  return 0;
}
\end{mylisting}

\begin{mylisting}
int main(int ac, char *av[], char **ep,char *av[], char **ep) 
{
  printf("Hello, World");
  return 0;
}
\end{mylisting}

\end{document}

在此处输入图片描述

那么，也许您可​​以默认使用带有自动换行符的可破坏框，并且hbox如果需要短列表的可变宽度，则可以有选择地添加选项：

\documentclass{article}
\usepackage[a6paper]{geometry}% just for the example
\usepackage[many]{tcolorbox}
\tcbuselibrary{listings}

\newtcblisting{mylisting}[1][]{
  listing only,
  breakable,
  colframe=cyan,
  colback=cyan!10,
  listing options={
    language=C,
    basicstyle=\small\ttfamily,
    breaklines=true,
    columns=fullflexible
  },
  #1
}

\begin{document}

\begin{mylisting}[hbox]
int main(int ac, char *av[]) 
{
  printf("Hello, World");
  return 0;
}
\end{mylisting}

\begin{mylisting}
int main(int ac, char *av[],int ac, char *av[],int ac, char *av[],int ac, char *av[],int ac, char *av[],int ac, char *av[]) 
{
  printf("Hello, World");
  return 0;
}
int main(int ac, char *av[]) 
{
  printf("Hello, World");
  return 0;
}
{
  printf("Hello, World");
  return 0;
}
{
  printf("Hello, World");
  return 0;
}
{
  printf("Hello, World");
  return 0;
}
{
  printf("Hello, World");
  return 0;
}
{
  printf("Hello, World");
  return 0;
}
\end{mylisting}

\end{document}

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该tcolorbox套餐还提供与minted（另一个流行的列表包）；然而，minted 不支持自动换行。使用现在的minted库的一个小例子：

\documentclass{article}
\usepackage[many]{tcolorbox}
\tcbuselibrary{minted}

\newtcblisting{mylisting}{
  colframe=cyan,
  colback=cyan!10,
  listing only,
  listing engine=minted,
  minted language=cpp,
  minted options={fontsize=\small,linenos,numbersep=3mm},
}

\begin{document}

\begin{mylisting}
int main(int ac, char *av[]) 
{
  printf("Hello, World");
  return 0;
}
\end{mylisting}

\begin{mylisting}
int main(int ac, char *av[], char **ep,char *av[], char **ep) 
{
  printf("Hello, World");
  return 0;
}
\end{mylisting}

\end{document}

在此处输入图片描述

答案2

虽然我不知道该怎么做tcolorbox，但我展示了看似微不足道：verbatim、newenvironment 和 colorbox如何使用我的verbatimbox软件包制作彩色逐字框。我尚未升级软件包以默认提供这些功能，因此它们包含在序言中。

请注意，这个答案确实不是支持自动换行。由于是方框形式，所以也不支持分页。

我修改了该答案（它提供了一个环境），提供了两个环境cverbbox和mycverbbox，后者允许您指定保存结果的框的唯一名称。我还在第 3 个示例中展示了如何使用可选参数对代码行进行编号。

\documentclass{article}
\usepackage{xcolor}
\usepackage{verbatimbox}
\makeatletter
\newenvironment{mycverbbox}[5][]{%
  \setcounter{VerbboxLineNo}{0}%fx
  \def\verbatim@processline{%
% THE FIRST #1 ACCOUNTS FOR NON-PRINTING COMMANDS; THE SECOND #1 IS FOR
% PRINTED OPTIONAL MATERIAL
    {\addtocounter{VerbboxLineNo}{1}%
    #1\setbox0=\hbox{#1\the\verbatim@line}%
    \hsize=\wd0 \the\verbatim@line\par}}%
  \@minipagetrue%
  \@tempswatrue%
  \global\edef\sv@name{\@macro@name{#5}}%
  \global\edef\cverbboxColor{#3}%
  \global\edef\cverbboxFColor{#4}%
  \@ifundefined{\sv@name content}{%
    \expandafter\newsavebox\expandafter{\csname\sv@name content\endcsname}%
  }%
  \expandafter\global\expandafter\edef\csname\sv@name\endcsname{\usebox{%
  \csname\sv@name content\endcsname}}%
  \setbox0=\vbox\bgroup\color{#2} \verbatim
}
{%
  \endverbatim%
  \unskip\setbox0=\lastbox %
  \egroup%
  \setbox1=\hbox{%
    \colorbox{\cverbboxColor}{\box0}}%
  \global\sbox{\csname\sv@name content\endcsname}%
    {\fboxsep=\fboxrule\colorbox{\cverbboxFColor}{\box1}}%
}
\newenvironment{cverbbox}[4][]{%
  \setcounter{VerbboxLineNo}{0}%fx
  \def\verbatim@processline{%
% THE FIRST #1 ACCOUNTS FOR NON-PRINTING COMMANDS; THE SECOND #1 IS FOR
% PRINTED OPTIONAL MATERIAL
    {\addtocounter{VerbboxLineNo}{1}%
    #1\setbox0=\hbox{#1\the\verbatim@line}%
    \hsize=\wd0 \the\verbatim@line\par}}%
  \@minipagetrue%
  \@tempswatrue%
  \global\edef\sv@name{theverbbox}%
  \global\edef\cverbboxColor{#3}%
  \global\edef\cverbboxFColor{#4}%
  \@ifundefined{\sv@name content}{%
    \expandafter\newsavebox\expandafter{\csname\sv@name content\endcsname}%
  }%
  \expandafter\global\expandafter\edef\csname\sv@name\endcsname{\usebox{%
  \csname\sv@name content\endcsname}}%
  \setbox0=\vbox\bgroup\color{#2} \verbatim
}
{%
  \endverbatim%
  \unskip\setbox0=\lastbox %
  \egroup%
  \setbox1=\hbox{%
    \colorbox{\cverbboxColor}{\box0}}%
  \global\sbox{\csname\sv@name content\endcsname}%
    {\fboxsep=\fboxrule\colorbox{\cverbboxFColor}{\box1}}%
}
\makeatother
\parskip 1ex
\begin{document}

\fboxrule=3pt\fboxsep=1pt
\begin{cverbbox}[\scriptsize\textcolor{black}{$\bullet$}]{red!80}{blue!10}{cyan}
here is \verbatim Text
Here
%$#@&^* \macros
xa
\end{cverbbox}
\fbox{An} inline verbatimbox\theverbbox is here.

\fboxrule=0pt\fboxsep=3pt
\begin{cverbbox}{blue}{cyan!40}{cyan}
here is frameless colorboxed \verbatim Text
by setting \fboxsep to 0pt.
No conditioning is performed with
an \optional argument
\end{cverbbox}
\theverbbox


\fboxrule=1pt\fboxsep=3pt\relax
\begin{mycverbbox}[\tiny\textcolor{black!50}{\tiny\makebox[4ex][r]{%
  \theVerbboxLineNo:~}}]{black}{blue!10}{cyan}{\mycvbox}
      subroutine cubic (p,q,r,rts)
c     SOLVES CUBIC EQUATION x^3 + px^2 + qx + r = 0
c     WITH REAL COEFFICIENTS.  SOLUTION MAY BE COMPLEX.
      implicit none
      double precision p,q,r,rts(2,3)
      double precision Ar, Ai, arg, ang, Br, Bi, SUMr, SUMi, DIFr,
     &                 DIFi, a,b, radicand, term,   PI
      PARAMETER (PI=3.14159 26535 89793 23846 d0)
c
      a = (3.d0*q - p**2)/3.d0
      b = (2.d0*p**3 - 9.d0*p*q + 27.d0*r)/27.d0
      radicand = b**2 /4.d0 + a**3 /27.d0
      if (radicand .ge. 0.d0) then
        term = -b/2.d0 + sqrt(radicand)
        if (term .ge. 0.d0) then
          Ar = term**(1.d0/3.d0)
        else
          Ar = -(-term)**(1.d0/3.d0)
        end if
        Ai = 0.d0
        term = b/2.d0 + sqrt(radicand)
        if (term .ge. 0.d0) then
          Br = -(term**(1.d0/3.d0))
        else
          Br = (-term)**(1.d0/3.d0)
        end if
        Bi = 0.d0
      else
        arg = (sqrt((b/2.d0)**2 - radicand))**(1.d0/3.d0)
        ang = atan(sqrt(-radicand)/(-b/2.d0))
        if (ang .lt. 0.d0) ang = ang + PI
        ang = ang/3.d0
        Ar = arg*cos(ang)
        Ai = arg*sin(ang)
        Br = Ar
        Bi = -Ai
      end if
      SUMr = Ar + Br
      SUMi = Ai + Bi
      DIFr = Ar - Br
      DIFi = Ai - Bi
      rts(1,1) = SUMr - p/3.d0
      rts(2,1) = SUMi
      rts(1,2) = -(SUMr - DIFi*sqrt(3.d0))/2.d0 - p/3.d0
      rts(2,2) = -(SUMi + DIFr*sqrt(3.d0))/2.d0
      rts(1,3) = -(SUMr + DIFi*sqrt(3.d0))/2.d0 - p/3.d0
      rts(2,3) = -(SUMi - DIFr*sqrt(3.d0))/2.d0
      return
      end
c********************************************************************
\end{mycverbbox}
\mycvbox

\end{document}

在此处输入图片描述

\fboxrule请注意，通过设置为可以获得无框框0pt。

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