# Set LastFirst author in capital letters into a jstyle citation format for LibreOffice use

**URL:** <https://discourse.jabref.org/t/set-lastfirst-author-in-capital-letters-into-a-jstyle-citation-format-for-libreoffice-use/3908>\
**Category:** Help\
**Created:** [August 3, 2023, 9:30pm UTC](https://discourse.jabref.org/t/set-lastfirst-author-in-capital-letters-into-a-jstyle-citation-format-for-libreoffice-use/3908 "2023-08-03T21:30:48Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tatui](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.jabref.org/tatui/32/1639_2.png) [@Tatui](https://discourse.jabref.org/u/Tatui)\
**Post date:** [August 3, 2023, 9:30pm UTC](https://discourse.jabref.org/t/set-lastfirst-author-in-capital-letters-into-a-jstyle-citation-format-for-libreoffice-use/3908/1 "2023-08-03T21:30:48Z")

</div>

I try to set up a jstyle file to use with LibreOffice. We use ABNT format (Associação Brasileira de Normas Técnicas - Brazilian Association of Technical Standards).

Bibtex entry is:

```auto
@Article{Helming:2011:A,
  author = {Helming, Katharina and Diehl, Katharina and Bach, Hanne and Dilly, Oliver and K{\"o}nig, Bettina and Kuhlman, Tom and P{\'e}rez-Soba, Marta and Sieber, Stefan and Tabbush, Paul and Tscherning, Karen and others},
  journal = {Ecology and Society},
  title = {\emph{Ex ante} impact assessment of policies affecting land use, Part A: analytical framework},
  year = {2011},
  number = {1},
  volume = {16},
  publisher = {JSTOR},
}

```

My Layout in ABNT.jstyle file is like this:

```auto
article=\format[Authors(LastFirst,FullName,Semicolon,Semicolon,EtAl= et al,3)]{\author}.
\title. <b>\journal</b>,\begin {address}\address;\end{address}\begin{volume} v. \volume,\end{volume}\begin{number} n. \number,\end{number}\begin {pages}p. \format[FormatPagesForHTML]{\pages}.\end{pages} \year\uniq\begin{doi}doi:\format[DOIStrip]{\doi}.\end{doi}\begin{url} Disponível em: \url.\end{url}\begin{urldate} Acesso em: \format[DateFormatter(dd/MM/yyy)]{\urldate}\end{urldate}.

```

In LibreOffice, I got:

Helming, Katharina et al. _Ex ante_ impact assessment of policies affecting land use, Part A: analytical framework. **Ecology and Society** , v. 16, n. 1, 2011a.

However, is needed:

HELMING, Katharina et al. _Ex ante_ impact assessment of policies affecting land use, Part A: analytical framework. **Ecology and Society** , v. 16, n. 1, 2011a.

First author’s last name need to be in **uppercase** letters. Only first author.

I tried to use `ToUpperCase` tag, but it is not work as needed.

Thank you so much!

---

<div class="post-metadata">

**Author:** ![ThiloteE](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.jabref.org/thilotee/32/1008_2.png) [@ThiloteE](https://discourse.jabref.org/u/ThiloteE)\
**Post date:** [August 5, 2023, 5:11pm UTC](https://discourse.jabref.org/t/set-lastfirst-author-in-capital-letters-into-a-jstyle-citation-format-for-libreoffice-use/3908/2 "2023-08-05T17:11:20Z")

</div>

I tried with the [Export-Filter-Editor](https://github.com/teertinker/Export-Filter-Editor). There is the `CAPITAL` option, but that one capitalizes all names and looking at the raw code, it turns out this option is actually `ToUpperCase`.

![image](https://canada1.discourse-cdn.com/flex030/uploads/jabref/original/2X/2/20f347bc2384bc4c4a2d33e8b278d88d9401f5d5.png)

According to the documentation, `ToUpperCase` transforms ALL characters to uppercase, so if that is what happens to you, this would be correct.

I think what you need is to write your own [custom name formatters](https://docs.jabref.org/collaborative-work/export/customexports#using-custom-name-formatters), which split the authors down into firstname and surname. Then you can add your own [custom formatter](https://docs.jabref.org/collaborative-work/export/customexports#custom-formatters) for capitalizing, which you can use in conjunction with the custom name formatter.