bib2gls application FAQ

Is it possible to automatically move a lonely entry up a hierarchical level? 🔗

Yes, it is. You can use the flatten-lonely option. For example, suppose you have a file called entries.bib that contains: 

@index{animal}
@index{mineral}
@index{vegetable}

@entry{quartz,
  name={quartz},
  description={hard mineral consisting of silica},
  parent={mineral}
}

@entry{diamond,
  name={diamond},
  description={a metastable allotrope of carbon},
  parent={mineral}
}

@entry{abelsonite,
  name={abelsonite},
  description={a nickel porphyrin mineral},
  parent={mineral}
}

@entry{cabbage,
  name={cabbage},
  description={vegetable with thick green or purple leaves},
  parent={vegetable}
}

@entry{cauliflower,
  name={cauliflower},
  description={type of cabbage with edible white flower head},
  parent={vegetable}
}

@entry{duck,
  name={duck},
  description={a waterbird with webbed feet},
  parent={animal}
}

@entry{parrot,
  name={parrot},
  description={mainly tropical bird with bright plumage},
  parent={animal}
}

The document below only references some of these entries and as a result there are some sub-entries with no siblings: 

\documentclass{report}

\usepackage[record,stylemods,style=tree]{glossaries-extra}

\GlsXtrLoadResources[src={entries}]

\begin{document}
Test: \gls{abelsonite}, \gls{cabbage}, \gls{cauliflower}, \gls{animal}
and \gls{duck}.

\printunsrtglossary
\end{document}

The glossary has the following structure:

There are two sub-entries with no siblings: “duck” (where its parent has also been indexed) and “abelsonite” (where its parent hasn’t been indexed). If the resource option flatten-lonely=presort is used, the “abelsonite” entry will be moved up a hierarchical level and its parent will be removed. The “duck” entry won’t be modified as its parent has been indexed. The result now has the hierarchy:

Compare this with flatten-lonely=postsort where the resulting hierarchy is:

If you want the “duck” entry to also be adjusted, then it’s necessary to change the flatten-lonely-rule option but note that the parent entry can’t be removed as it’s been indexed in the document. For example, with: 

\GlsXtrLoadResources[src={entries},
 flatten-lonely=presort,
 flatten-lonely-rule={discard unrecorded}
]

Then the resulting hierarchy is:

2020-06-29 12:27:31

Permalink: https://www.dickimaw-books.com/faq.php?id=240
Alternative link: https://www.dickimaw-books.com/faq.php?itemlabel=bib2gls-lonely

Category: bib2gls application
Topic: Automated Adjustments