% This file is embedded in glossaries-extra-manual.pdf 
% Example 160 Using bib2gls: unit record counting
% Label: "ex:bib2glsunitrecordcounting"
% arara: pdflatex
% arara: bib2gls: { recordcountunit: on }
% arara: pdflatex
% arara: pdfcrop
\documentclass[12pt]{scrreport}
\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{kpfonts}
\usepackage[colorlinks]{hyperref}
\usepackage[record,postdot]{glossaries-extra} 

\renewcommand{\chapterpagestyle}{empty}% to assist cropping
\setabbreviationstyle{long-short-sc-desc} 

\GlsXtrLoadResources[src={abbrvs},
 field-aliases={fulllong=long}
] 

\preto{\chapter}{\glsresetall}
\glsxtrenablerecordcount
\GlsXtrSetRecordCountAttribute{abbreviation}{1} 

\renewcommand{\glslinkpresetkeys}{% 
 \glsadd[format=glsignore,counter=chapter]{\glslabel}} 

\renewcommand*{\glsxtrrecordtriggervalue}[1]{% 
 \GlsXtrLocationRecordCount{#1}{chapter}{\theHchapter}% 
} 
\begin{document}
\chapter{First} \gls{html}. \gls{html}. \gls{html}. \gls{ssi}. 

\chapter{Second} \gls{html}. \gls{ssi}. \gls{ssi}. \gls{xml}. 

\renewcommand*{\printunsrtglossaryentryprocesshook}[1]{% 
 \glsxtrifhasfield*{location}{#1}{}{\printunsrtglossaryskipentry}% 
}
\printunsrtglossaries 
\end{document}
