Remove two words

Question

I'm writing a description of a method, where the title of each section is formatted like Step X: <step title>. Now, I want to reference the section as Step X ("<step title>"). I am aware of \nameref, but I don't know how to remove the first two words of a string.

When trying to use stringstrings to remove the first two words, I get

Use of \removeword doesn't match its definition.

Minimum example:

\documentclass{article}
\usepackage{stringstrings}

\newcounter{step}

\begin{document}

\removeword\removeword{x1 x2 x3}

\end{document}

What can be done to have stringstrings remove the first two words?

The intended use (updated answer)

(If I should put that as separate question, I'll do)

I'm writing a description of a method, where the title of each section is formatted like Step X: <step title>. Now, I want to reference the section as Step X ("<step title>"). Currently, I'm using the solution https://tex.stackexchange.com/a/73710/9075, which suggests to redefine @currentlabelname. However, I have to type my section name twice.

Minimum example:

\documentclass{article}
\usepackage{csquotes}
\usepackage{hyperref}

\newcounter{step}

\newcommand{\titleinquotes}[1]{(\enquote{\nameref{sec:#1}})}

\begin{document}

We will see something in Step~\ref{S1} \titleinquotes{S1}.

\refstepcounter{step}
\label{S1}
\section{Step \thestep: Setup Environment}
\label{sec:S1}

\end{document}

The question is how `\titleinquotes' has to be changed to have following output

We will see something in Step 1 (“Setup Environment”)

The quick hack

\newcommand{\removedoubleword}[1]{\removeword[e]{#1} \removeword{\thestring}} 
\newcommand{\titleinquotes}[1]{(\enquote{\removedoubleword{\nameref{sec:#1}}})}

does not work: Use of \\removeword doesn't match its definition.. Without using \nameref, it works.

Answer 1

According to the stringstring documentation, you cannot directly nest its commands. Instead, stringstring manipulation commands provide a specific mechanism for composability: They store the result in \thestring, which can be used as input to subsequent commands. So you need two steps.

Most commands also "print out" the resulting \thestring. This can be supressed by passing the [q] (quiet) or [e] (encoded) option. The latter makes sure that special characters (such as \$) do not get expanded, which increases the robustness if \thestring is fed into another stringstring command.

\documentclass{article}
\usepackage{stringstrings}

\newcounter{step}

\begin{document}

  \removeword[e]{x1 x2 x3}
  \removeword{\thestring}

\end{document}