listings技巧

1. lstdefinestyle

参考 https://blog.csdn.net/ProgramChangesWorld/article/details/52142313

我们在使用listings的时候，需要设置语言和样式。用lstset会设置全局的变量，如果我们文章中有多种代码，那么就需要lstdefinestyle，设置多种样式，在使用的时候选择对应的样式。

% system=ubuntu
%soft=Tex Live2015
% complie=XeLaTeX
documentclass[a4paper,UTF8]{article}
usepackage{listings}
usepackage{ctex}
usepackage{color}
definecolor{keywordcolor}{rgb}{0.8,0.1,0.5}
definecolor{webgreen}{rgb}{0,.5,0}
definecolor{bgcolor}{rgb}{0.92,0.92,0.92}

lstdefinestyle{styleJ}{
    language=[AspectJ]Java,
    keywordstyle=color{keywordcolor}fseries, 
    commentstyle=color{blue} 	extit, 
    showstringspaces=false,
    numbers=left,
    numberstyle=small
}
lstdefinestyle{styleP}{
    language=Python,
    numbers=right, 
    frame=single,
    numberstyle=small ,
}
egin{document}
egin{lstlisting}[style=styleJ]
public int sum(int n){
    int sum = 0;
    for(int i=0;i<n;i++){  //开始的
        sum += i;         
    }
    return sum;
}
end{lstlisting}

egin{lstlisting}[style=styleP]
def fun():
    print('你好，世界') #我是注释
end{lstlisting}

end{document}

可以看到使用lstdefinestyle定义了两个样式，styleJ和styleP，分别是java和python的样式，在使用lstlisting环境的时候调设置了这两个样式。

如果不想把代码放在.tex文件里，也可以把代码放在单独的文件，然后使用下面的命令即可：

lstinputlisting[style=styleJ]{code.java}

 2. listings样式1

参考 https://tex.stackexchange.com/questions/68091/how-do-i-add-syntax-coloring-to-my-c-source-code-in-beamer

documentclass{beamer}
 setbeamercovered{transparent}
usepackage{listings}

egin{document}

% Using typewriter font: 	tfamily inside lstset
egin{frame}[fragile]
frametitle{Inserting source code}
lstset{language=C++,
                basicstyle=	tfamily,
                keywordstyle=color{blue}	tfamily,
                stringstyle=color{red}	tfamily,
                commentstyle=color{green}	tfamily,
                morecomment=[l][color{magenta}]{#}
}
egin{lstlisting}
    #include<stdio.h>
    #include<iostream>
    // A comment
    int main(void)
    {
    printf("Hello World
");
    return 0;
    }
end{lstlisting}
end{frame}

egin{frame}[fragile]
frametitle{Inserting source code without setting typewriter}
lstset{language=C++,
                keywordstyle=color{blue},
                stringstyle=color{red},
                commentstyle=color{green},
                morecomment=[l][color{magenta}]{#}
}
egin{lstlisting}
    #include<stdio.h>
    #include<iostream>
    // A comment
    int main(void)
    {
    printf("Hello World
");
    return 0;
    }
end{lstlisting}
end{frame}
end{document}

 

 第一种使用了 tfamily，这个是一种打印机字体。

参考 https://www.tug.org/pracjourn/2006-1/schmidt/schmidt.pdf

https://tug.org/FontCatalogue/typewriterfonts.html

	tfamilyselects a monospaced (“typewriter”) font family

 3. listings样式2

参考 https://tex.stackexchange.com/questions/409705/c-code-change-the-font

documentclass{article}
usepackage{xcolor}
usepackage{listings}

colorlet{mygray}{black!30}
colorlet{mygreen}{green!60!blue}
colorlet{mymauve}{red!60!blue}

lstset{
  backgroundcolor=color{gray!10},  
  basicstyle=	tfamily,
  columns=fullflexible,
  breakatwhitespace=false,      
  breaklines=true,                
  captionpos=b,                    
  commentstyle=color{mygreen}, 
  extendedchars=true,              
  frame=single,                   
  keepspaces=true,             
  keywordstyle=color{blue},      
  language=c++,                 
  numbers=none,                
  numbersep=5pt,                   
  numberstyle=	inycolor{blue}, 
  rulecolor=color{mygray},        
  showspaces=false,               
  showtabs=false,                 
  stepnumber=5,                  
  stringstyle=color{mymauve},    
  tabsize=3,                      
  title=lstname                
}

egin{document}

egin{lstlisting}
#include <tesseract/baseapi.h>
#include <leptonica/allheaders.h>

int main()
{
    char *outText;

    tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI();
    // Initialize tesseract-ocr with English, without specifying tessdata path
    if (api->Init(NULL, "eng")) {
        fprintf(stderr, "Could not initialize tesseract.
");
        exit(1);
    }

    // Open input image with leptonica library
    Pix *image = pixRead("/usr/src/tesseract/testing/phototest.tif");
    api->SetImage(image);
    // Get OCR result
    outText = api->GetUTF8Text();
    printf("OCR output:
%s", outText);

    // Destroy used object and release memory
    api->End();
    delete [] outText;
    pixDestroy(&image);

    return 0;
}
end{lstlisting}

end{document}