capital letter with acro

Question

What im trying to do it's to have a non capital E at the end of the scrip:

 % arara: pdflatex
\documentclass{article}
\usepackage{acro}
\DeclareAcronym{CNO}{ short = CNO , long = Clasificador Nacional de Ocupaciones }
\DeclareAcronym{e0}{ short = \ensuremath{e_0} , long = Esperanza de vida al nacer , sort = e_0 } 
\begin{document}
\Ac{CNO} foo. Pero si \ac{e0} bar.
\end{document}

I want this text Clasificador Nacional de Ocupaciones (CNO) foo. Pero si esperanza de vida al nacer (e0) bar. Without 'Esperanza' with the capital E, just the e....

Answer 1

The way the acro package works is that it has a method to uppercase initial letters (although beware that this doesn't work for accented letters!), so the base form of the long form should not be capitalized. Then you use \ac or \Ac to use the uncapitalized and capitalized versions of the acronym, respectively.

\documentclass{article}
\usepackage{acro}
\DeclareAcronym{CNO}{ short = CNO , long = Clasificador Nacional de Ocupaciones }
\DeclareAcronym{e0}{ short = \ensuremath{e_0} , long = esperanza de vida al nacer , sort = e_0 } 
\begin{document}

\Ac{CNO} foo. 

Pero si \ac{e0} bar.

% these examples reverse the capitalization (as an example)
% the `l` forces re-use of the long form.

\acl{CNO} foo. 

Pero si \Acl{e0} bar.
\end{document}