% This file is embedded in glossaries-extra-manual.pdf 
% Example 154 Using bib2gls: gathering dependencies from field values
% Label: "ex:bib2glsgatherdeps"
% arara: pdflatex
% arara: bib2gls
% arara: pdflatex
% arara: pdfcrop
\documentclass[12pt]{article}
\pagestyle{empty}
\begin{filecontents*}{abbrvs.bib}
@string{ssi={server-side includes}}
@string{html={hypertext markup language}} 

@abbreviation{shtml,
  short="shtml",
  fulllong = ssi # " enabled " # html,
  nestedlong = "\glsps{ssi} enabled \glsps{html}",
  description={a combination of \gls{html} and \gls{ssi}}
} 

@abbreviation{html,
  short ="html",
  long = html,
  description={a markup language for creating web pages}
} 

@abbreviation{ssi,
  short="ssi",
  long = ssi,
  description={a simple interpreted server-side scripting language}
}

@abbreviation{xml,
  short={xml},
  long={extensible markup language},
  description={a simple text-base format for representing structured information}
}

@abbreviation{mathml,
  short={m\BibGlsNoCaseChange{ath}ml},
  long={mathematical markup language},
  description={an \gls{xml}-based language for describing mathematical notation}
}
\end{filecontents*}
\usepackage[T1]{fontenc}
\usepackage{relsize}
\usepackage[colorlinks]{hyperref}
\usepackage[record=nameref]{glossaries-extra} 

\BibGlsOptions{mfirstuc-protection={long}} 

\setabbreviationstyle{long-short-sc} \newcommand{\BibGlsNoCaseChange}[1]{\textsmaller{#1}} 

\GlsXtrLoadResources[
 src={abbrvs},
 field-aliases={fulllong=long},
 % The following require bib2gls v4.1+
 omit-fields={"description"},
 gather-parsed-dependencies
] 


\begin{document}
\tableofcontents
\section{\Glsfmtlong{shtml}}
First use: \gls{shtml}, \gls{html}, \gls{ssi}, \gls{mathml}. 

Next use: \gls{shtml}, \gls{html}, \gls{ssi}, \gls{mathml}. All caps: \GLS{mathml}. 

\printunsrtglossaries 
\end{document}