\usepackage{xstring}

\newcommand{\unfinished}{
    \textbf{\textcolor{orange!90}{to be continued...}}
}

\newcommand{\unresolved}{
    \textbf{\textcolor{red!90}{unresolved}}
}

% Create a new environment {exercise} to refer  to exercises from the KNUTH book.
\newenvironment{myexercise}[2]
{
    \addcontentsline{toc}{subsubsection}{Exercise #1}
    \begin{minipage}{\textwidth}
    \begin{flushleft}
    {
        \Huge
        \textbf{Exercise #1.} (p. #2)
    }
    \end{flushleft}
}
{
    \end{minipage}
}

% Create a new environment for big quote with `primarycolor' coloured quote sign
\newenvironment{myquote}
{
    \begin{minipage}{\textwidth}
    \begin{flushleft}
    {

        \fontsize{75pt}{3pt}\selectfont 
        \textcolor{primarycolor}{\textquotedblleft}
    }
}
{
    \begin{flushright}
       {
           \textcolor{primarycolor}{\textquotedblright}
       }

    \end{flushright}
    \end{flushleft}
    \end{minipage}
}

\newenvironment{myanswer}
{
    \begin{minipage}{\textwidth}
    \begin{itshape}
    \begin{flushleft}
    {
        \Large
        \textbf{My Answer}:
    }
}
{
    \end{flushleft}
    \end{itshape}
    \end{minipage}
}