Exporting Org to PDF while displaying Regex literal strings

Question

I've been searching for the past couple of days to a solution to an issue I'm having. Hoping somebody who is more apt with emacs/exporting could provide some insight.

Upon exporting an .org file (C-cC-elo/p) to LaTeX followed by PDF, my Regex text within the PDF document is handled (assuming) as a math equation. E.g. instead of displaying [^ABC] within the PDF, it is displayed as [^ABC].

I have attempted to use \usepackage{verbatim}, with something like \verb/[^ABC]/, but I get different results. E.g. [(^{\text{ABC}})].

Is there a specific reason I'm missing that could be causing this? Or, something that I have not included within my init.el? For reference, here is the section of my init.el that is handling org-latex-classes:

(add-to-list 'org-latex-classes
             '("adarticle"
               "\\documentclass{article}
\\usepackage[utf8]{inputenc}
\\usepackage{verbatim}
\\usepackage[T1]{fontenc}
\\usepackage{graphicx}
\\usepackage{longtable}
\\usepackage{hyperref}
\\usepackage{natbib}
\\usepackage{amssymb}
\\usepackage{amsmath}
\\usepackage{geometry}
\\geometry{a4paper,left=2.5cm,top=2cm,right=2.5cm,bottom=2cm,marginparsep=7pt, marginparwidth=.6in}"
               ("\\section{%s}" . "\\section*{%s}")
               ("\\subsection{%s}" . "\\subsection*{%s}")
               ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
               ("\\paragraph{%s}" . "\\paragraph*{%s}")
               ("\\subparagraph{%s}" . "\\subparagraph*{%s}")))

Edit: As suggested, wrapping expressions with '=' seems to do the trick for cases such as [^ABC] and \u{FFFF}.

Answer 1

Org can be told to treat text as verbatim either by wrapping it in '=' markup (for words), or in a #+BEGIN_EXAMPLE/#+END_EXAMPLE block. See Emphasis-and-Monospace and Literal-Examples for details.