u-fischer
commented
1 year ago this has nothing to do with LaTeX2e versus LaTeX3: the textfield for example works fine in the old, standard tabular.
The problem is that tabularray processes its contents many times, and this confuses the field: it believes that their are four kid fields but at the end only one exists. Make a feature request at tabulararray that it offers some option to process a command only once
(There is a boolean \lTblrMeasuringBool but even with it, the field is process twice and that is once too much.)
\DocumentMetadata{uncompress}
\documentclass{article}
\usepackage{l3pdffield-testphase}
\usepackage{tabularray}
\begin{document}
\ExplSyntaxOn
\begin{tabular}{l}
\show\bla %shown once
\pdffield_textfield:n{name=1,width=2cm}
\end{tabular}
\begin{tblr}{l}
\show\blub % shown 4 times
\pdffield_textfield:n{name=2,width=2cm}
\end{tblr}
\ExplSyntaxOff
\end{document}
ssimo3lsuhsc
Hello!!!
\pdffield_textfielddoes not produce any output inside commands or environments offered by thefancyhdrortabularraypackages. That it does not work withfancyhdris perhaps not surprising, as that package mentions that it is written for LaTeX 2e, However,tabularrayis proudly LaTeX 3. If you've ever seen a paper form, you would know that it is laid out in a way that closely imitates the cells of a multirow, multicolumn table. I like the simple way in whichtabularrayallows me to define my rows and columns in terms of their spreading behavior rather than fixed widths. That is, it offers theXcolumn option, originally fromtabularx,but it is much simpler to specify growth factors in columns that need them intabularraythan intabularx.So why am I posting this here and not on
tabularray's GitHub page? I want to learn more about how Ulrike Fischer programmed the LaTeX3 PDF form fields to ship out. I also am open to any alternatives to the packages above that might work better with what Fischer has done.Here is my code:
Output
simple_expl3_text_field_brackets.pdf
Terminal code