% This file is embedded in glossaries-extra-manual.pdf
% Example 131 Multi-entries: skipping elements (prefix and post-link hooks)
% Label: "ex:multientryskipprefixpostlink"
% arara: pdflatex
% arara: makeglossaries
% arara: pdflatex
% arara: pdfcrop
\documentclass[12pt]{article}
\pagestyle{empty}
\usepackage[T1]{fontenc}
\usepackage[colorlinks]{hyperref}
\usepackage[stylemods,style=long]{glossaries-extra}


\makeglossaries


\setabbreviationstyle{long-postshort-sc-user}


\newabbreviation{ssi}{ssi}{server-side includes}
\newabbreviation{html}{html}{hypertext markup language}


\newrobustcmd{\combinedpre}[1]{\glsps{#1}}
\newrobustcmd{\combinedpost}[1]{\glsps{#1}}


\newabbreviation{shtml}{shtml}
{{}\combinedpre{ssi} enabled \combinedpost{html}}


\glssetcategoryattribute{combinedabbrv}{multioptions}
 {%
 mpostlinkelement=main,
 usedskipothers
 }


\multiglossaryentry
 [category=combinedabbrv]
 {shtml}[shtml]{ssi,shtml,html}


\mglsdefcategoryprefix{combinedabbrv}{%
 \renewcommand{\combinedpre}[1]{\ignorespaces}%
 \renewcommand{\combinedpost}[1]{\unskip}%
} 
\begin{document}
Individual elements first use: \gls{ssi} and \gls{html}.


Individual elements next use: \gls{ssi} and \gls{html}.


Multi-entry first use: \mgls{shtml}.


Multi-entry next use: \mgls{shtml}.


Individual entry first use: \gls{shtml}.


Resetting all\glsresetall\mglsresetall:


Multi-entry first use: \mgls{shtml}.


Multi-entry next use: \mgls{shtml}.


Individual elements: \gls{ssi} and \gls{html}.


Resetting all\glsresetall\mglsresetall:


Individual entry first use: \gls{shtml}.


Multi-entry first use: \mgls{shtml}. (Wrong!)


\printglossaries 
\end{document}