how can I write an inline hexadecimal value?

Question

How do I write an inline "\0x" without having LaTeX put each value on a new line?

"\0x" in C programing identifies a hexadecimal value. I would like to write an inline string of hexadecimal represented values.

Consider this as what I want to write

\0x68 \0x6F \0x77 \0x20 \0x64 \0x6F \0x3F

I tried

\\0x68 \\0x6F \\0x77 \\0x20 \\0x64 \\0x6F \\0x3F

but every hexadecimal value is placed on a newline, and missing the backslash.

I also tried

\texttt{\0x68\0x6F\0x77\0x20\0x64\0x6F\0x3F}

but the same thing happens.

The double backslash in LaTeX represents an end-of-line. It's generally not recommended except in particular well-defined environments. Here's a previous question that addresses the situation: When to use \par and when \\ — barbara beeton, Nov 25 '23 at 21:54

score 7 · Answer 1 · answered Nov 25 '23 at 23:14

7

\documentclass{article}
\newcommand\0[3]{\texttt{\string\0#1#2#3}}
\begin{document}
\0x68 \0x6F \0x77 \0x20 \0x64 \0x6F \0x3F
\end{document}

answered Nov 25 '23 at 23:14

David Carlisle

757,742

1

How does it work? The number in the command name – Mane32 Nov 25 '23 at 23:43
3

you can have one-character command names with non letters, so \0 here, just like standard commands such as \$ or \^ which are non-letter commands. @Mane32 – David Carlisle Nov 25 '23 at 23:47

score 4 · Answer 2 · answered Nov 25 '23 at 22:44

If you have many of these, it makes sense to define your own command, say \hexa

\documentclass{article}
\ExplSyntaxOn
\NewDocumentCommand{\hexa}{sm}
 {% * means also compute the representation
  % #2 = number to represent
  \texttt
   {
    \IfBooleanTF { #1 }
     {
      \joh_hexa:e { \int_to_Hex:n { #2 } }
     }
     {
      \joh_hexa:n { #2 }
     }
   }
 }
\cs_new:Nn \joh_hexa:n
 {
  \char_generate:nn { `\ } { 12 } 0x #1
 }
\cs_generate_variant:Nn \joh_hexa:n { e }
\ExplSyntaxOff
\begin{document}
\hexa{68} \hexa{6F} \hexa{77} \hexa{20} \hexa{64} \hexa{6F} \hexa{3F}
\hexa*{123456}
\hexa*{\value{page}}
\end{document}

You see that with \hexa* TeX will do the conversion to hexadecimal for you and you can even use a LaTeX counter as shown.

Using a command is better because, if you later change your mind and, for instance, decide to not use the backslash, you can just change the definition in a single place.

score 3 · Answer 3 · answered Nov 25 '23 at 22:31

3

A solution with several instances of \string:

\documentclass{article}
\begin{document}
\texttt{\string\0x68\string\0x6F\string\0x77\string\0x20\string\0x64\string\0x6F\string\0x3F}
\end{document}

answered Nov 25 '23 at 22:31

Mico

506,678

score 2 · Answer 4 · answered Nov 25 '23 at 21:40

2

Please try this:

\documentclass{article}
\begin{document}
The value \texttt{\textbackslash0x68} is a hexadecimal code.
\end{document}

answered Nov 25 '23 at 21:40

Marco Moldenhauer

540

how can I write an inline hexadecimal value?

4 Answers4