Btukfyl

Sorry for the bad English. I'm trying to use the tikz-cd package to make commutative diagrams. My code

documentclass{article}

usepackage[brazil]{babel}

usepackage{tikz-cd}

begin{document}

begin{tikzcd}

A ar[r, "x"] & B

end{tikzcd}

end{document} 

The problem occurs when putting a name under the arrow, the syntax "x" is incompatible with the brazil option of the babel package. When exchanging brazil for english it works normally. I already tried using

usepackage[main=brazil, english]{babel}, usepackage[brazil, english]{babel} e  usepackage[brazil, main=english]{babel}

But it did not work. I also tried to use

usepackage[english, brazil]{babel}

usepackage{polyglossia}

setmainlanguage{brazil}

setotherlanguages{english}

And finally

selectlanguage{english}

However, it only works if I remove the option brazil

The TikZ babel library simplifies the interaction between the babel LaTeX package and TikZ itself, taking care of the catcodes etc. change.

documentclass{article}

usepackage[brazil]{babel}

usepackage{tikz-cd}

usetikzlibrary{babel}

begin{document}

begin{tikzcd}

A ar[r, "x"] & B

end{tikzcd}

end{document} 

Now there isn't any errors.

documentclass[a4paper,12pt, brazil]{article}

usepackage[T1]{fontenc}

usepackage[utf8]{inputenc}

usepackage{babel}



usepackage{tikz-cd}

begin{document}

shorthandoff{"}

begin{tikzcd}

A ar[r, "x"] & B

end{tikzcd}

shorthandon{"}

end{document}