New environment error

Question

Edit

As David rightly pointed out in the comment, I did not post what I intended. The desired output is a pull quote, that is a quote positioned on the right-hand or left-hand side of the page, wrapped by the main text, with the desired colored background declared by colorquote.

——————————————————————————————————————————

I’ve just started to learn how new environments work, so please bear with me.

I have tried the following:

\documentclass[12pt,a4paper]{article}   
\usepackage{lipsum}
\usepackage{Archivo}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{wrapfig}
\usepackage{sectsty}
\usepackage{xcolor}
\usepackage{tcolorbox}

%%%%This is the environment I’m trying to create%%%%
\definecolor{colorquote}{HTML}{e8e9f5}
\newtcolorbox{myquote}{colback=colorquote, colframe=colorquote}
\newenvironment{pullquote}[1]
    \begin{wrapfigure}{#1}{0.4\textwidth}
        \begin{myquote}
        \end{myquote}
    \end{wrapfigure}


\author{}
\title{Title}
\begin{document}
    \maketitle
    
    \section{This is some section title}
    
    \lipsum[1]
    \begin{pullquote}{R}
        Here is a quotation
    \end{pullquote}
    \lipsum[3]
    
\end{document}

Even when I try on one line:

\newenvironment{pullquote}[1]{\begin{wrapfigure}{#1}{0.4\textwidth}\begin{myquote}\end{myquote}\end{wrapfigure}}

The new environment just won’t work, and I cannot figure out why. What is wrong with it?

Also, I need the variable, but I’m not sure that I’m using it correctly. The variable would be used to either put the quoted text on the right-hand side or the left-hand side.

Answer 1

The error from the posted code is

! You can't use `macro parameter character #' in vertical mode.
l.20     \begin{wrapfigure}{#
                             1}{0.4\textwidth}
? 

as

\newenvironment{pullquote}[1]
    \begin{wrapfigure}{#1}{0.4\textwidth}

is

\newenvironment{pullquote}[1]
   {\begin}
   {wrapfigure}
   {#1}{0.4\textwidth}

which defines the pullquote environment to have begin code \begin and end code wrapfigure. That is not intended but not an error. But then the remaning tokens leave #1 not inside a definition, so you get the error.

Changing things to

\newenvironment{pullquote}[1]
    {\begin{wrapfigure}{#1}{0.4\textwidth}
        \begin{myquote}}
        {\end{myquote}
    \end{wrapfigure}}

runs without error and produces

Which may or may not be what you want (you did not say what output you wanted)

Or

from

\documentclass[12pt,a4paper]{article}   
\usepackage{lipsum}
\usepackage{Archivo}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{wrapfig}
\usepackage{sectsty}
\usepackage{xcolor}
\usepackage{tcolorbox}

%%%%This is the environment I’m trying to create%%%%
\definecolor{colorquote}{HTML}{e8e9f5}
\newtcolorbox{myquote}{colback=colorquote, colframe=colorquote}
\newenvironment{pullquote}[1]
    {\begin{wrapfigure}{#1}{0.4\textwidth}
        \begin{myquote}}
        {\end{myquote}
    \end{wrapfigure}}


\author{}
\title{Title}
\begin{document}
    \maketitle
    
    \section{This is some section title}
    
    \lipsum[1]

\begin{wrapfigure}{r}{0.4\textwidth}
        \begin{myquote}
        Here is a quotation
    \end{myquote}
\end{wrapfigure}
    \lipsum*[3]
    
\end{document}

Note that you can not "hide" a tcolorbox definition inside a standard \newenvironment which is why there is the \newtcolorbox declaration form.