How To Let \newtcblisting Take Custom Key-value Params?

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Introduction

When working with listings in LaTeX, it's essential to have a way to customize the appearance and behavior of the code blocks. One of the most popular packages for this purpose is tcolorbox. In this article, we'll explore how to use the \newtcblisting command to create custom listings with key-value parameters.

Understanding \newtcblisting

The \newtcblisting command is used to create a new listing environment with specific settings. It's a powerful tool that allows you to customize the appearance and behavior of your code blocks. However, by default, it only accepts a limited set of key-value parameters.

Displaying Ellipses in Listings

One of the common requirements when working with listings is to display ellipses (i.e., ...) in the code block. This can be achieved using the ellipsis key-value parameter. However, if you want to customize the appearance of the ellipses, you'll need to use a different approach.

Custom Key-Value Params with \newtcblisting

To let \newtcblisting take custom key-value params, you'll need to use the enhanced key-value parameter. This will enable you to add custom keys and values to your listing environment.

Example Code

\documentclass{article}
\usepackage{tcolorbox}
\usepackage{listings}






























































































































































































































































































Q: What is the purpose of the \newtcblisting command?


A: The \newtcblisting command is used to create a new listing environment with specific settings. It's a powerful tool that allows you to customize the appearance and behavior of your code blocks.


Q: How do I use the \newtcblisting command?


A: To use the \newtcblisting command, you need to specify the key-value parameters that you want to use. For example, you can use the language key-value parameter to specify the programming language of the code block.


Q: What is the difference between the \newtcblisting and \newtcbxlisting commands?


A: The \newtcblisting command is used to create a new listing environment with specific settings, while the \newtcbxlisting command is used to create a new listing environment with a specific style.


Q: How do I add custom key-value params to my listing environment?


A: To add custom key-value params to your listing environment, you need to use the enhanced key-value parameter. This will enable you to add custom keys and values to your listing environment.


Q: What is the purpose of the ellipsis key-value parameter?


A: The ellipsis key-value parameter is used to display ellipses (i.e., ...) in the code block.


Q: How do I customize the appearance of the ellipses?


A: To customize the appearance of the ellipses, you need to use the ellipsis key-value parameter in combination with other key-value parameters, such as fontupper or colback.


Q: Can I use the \newtcblisting command with other LaTeX packages?


A: Yes, you can use the \newtcblisting command with other LaTeX packages, such as listings or minted.


Q: How do I troubleshoot issues with the \newtcblisting command?


A: To troubleshoot issues with the \newtcblisting command, you can use the debug key-value parameter to enable debugging mode.


Q: What are some common mistakes to avoid when using the \newtcblisting command?


A: Some common mistakes to avoid when using the \newtcblisting command include:


    

  • Forgetting to specify the enhanced key-value parameter
    • 

  • Using the wrong key-value parameters
    • 

  • Not specifying the language key-value parameter
    • 

  • Not customizing the appearance of the ellipses
    • 



Conclusion


In conclusion, the \newtcblisting command is a powerful tool that allows you to customize the appearance and behavior of your code blocks. By understanding how to use the command and its key-value parameters, you can create beautiful and functional listings that enhance the readability of your documents.


Additional Resources


For more information on the \newtcblisting command and its key-value parameters, you can refer to the following resources:


    

  • The tcolorbox package documentation
    • 

  • The listings package documentation
    • 

  • The minted package documentation
    • 



Example Code


Here is an example of how to use the \newtcblisting command to create a custom listing environment:


\documentclass{article}
\usepackage{tcolorbox}
\usepackage{listings}

\newtcblisting{mylisting}[1][]{%
  enhanced,
  listing options={language=Python},
  #1,
  fontupper=\ttfamily,
  fontlower=\ttfamily,
  fonttitle=\ttfamily,
  colback=gray!10,
  colframe=gray!50,
  colupper=black,
  collower=black,
  coltitle=black,
  boxrule=0.5pt,
  arc=0pt,
  outer arc=0pt,
  left=0pt,
  right=0pt,
  top=0pt,
  bottom=0pt,
  leftrule=0pt,
  rightrule=0pt,
  toprule=0pt,
  bottomrule=0pt,
  middle=0pt,
  middle=0pt,
  middle=0pt,
  middle=0pt,
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