Unbounded number of arguments - Good practice












0















Here is how I do to work with unbounded number of arguments of a macro. Is there a better way to do that ?



documentclass[12pt,a4paper]{article}

usepackage{ifmtarg}
usepackage{nicematrix}

makeatletter
defbackify#1|#2@nil{%
@ifmtarg{#2}{%
#1%
}{%
#1 \ backify#2@nil%
}%
}

newcommandvcoord[1]{%
begin{pmatrix}
backify#1|@nil %
end{pmatrix}%
}
makeatother

begin{document}

$vcoord{3 | -4 | 0}$

end{document}









share|improve this question























  • There are some ready-made solutions in etoolbox (look for DeclareListParser and forcsvlist) and of course expl3/LaTeX3 has a lot of list parsing/splitting functions going on.

    – moewe
    7 mins ago











  • We the ready-to-use solutions, can I transform one list sperated with one symbol to the same list separated with another ?

    – projetmbc
    5 mins ago
















0















Here is how I do to work with unbounded number of arguments of a macro. Is there a better way to do that ?



documentclass[12pt,a4paper]{article}

usepackage{ifmtarg}
usepackage{nicematrix}

makeatletter
defbackify#1|#2@nil{%
@ifmtarg{#2}{%
#1%
}{%
#1 \ backify#2@nil%
}%
}

newcommandvcoord[1]{%
begin{pmatrix}
backify#1|@nil %
end{pmatrix}%
}
makeatother

begin{document}

$vcoord{3 | -4 | 0}$

end{document}









share|improve this question























  • There are some ready-made solutions in etoolbox (look for DeclareListParser and forcsvlist) and of course expl3/LaTeX3 has a lot of list parsing/splitting functions going on.

    – moewe
    7 mins ago











  • We the ready-to-use solutions, can I transform one list sperated with one symbol to the same list separated with another ?

    – projetmbc
    5 mins ago














0












0








0








Here is how I do to work with unbounded number of arguments of a macro. Is there a better way to do that ?



documentclass[12pt,a4paper]{article}

usepackage{ifmtarg}
usepackage{nicematrix}

makeatletter
defbackify#1|#2@nil{%
@ifmtarg{#2}{%
#1%
}{%
#1 \ backify#2@nil%
}%
}

newcommandvcoord[1]{%
begin{pmatrix}
backify#1|@nil %
end{pmatrix}%
}
makeatother

begin{document}

$vcoord{3 | -4 | 0}$

end{document}









share|improve this question














Here is how I do to work with unbounded number of arguments of a macro. Is there a better way to do that ?



documentclass[12pt,a4paper]{article}

usepackage{ifmtarg}
usepackage{nicematrix}

makeatletter
defbackify#1|#2@nil{%
@ifmtarg{#2}{%
#1%
}{%
#1 \ backify#2@nil%
}%
}

newcommandvcoord[1]{%
begin{pmatrix}
backify#1|@nil %
end{pmatrix}%
}
makeatother

begin{document}

$vcoord{3 | -4 | 0}$

end{document}






macros






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asked 12 mins ago









projetmbcprojetmbc

3,070103180




3,070103180













  • There are some ready-made solutions in etoolbox (look for DeclareListParser and forcsvlist) and of course expl3/LaTeX3 has a lot of list parsing/splitting functions going on.

    – moewe
    7 mins ago











  • We the ready-to-use solutions, can I transform one list sperated with one symbol to the same list separated with another ?

    – projetmbc
    5 mins ago



















  • There are some ready-made solutions in etoolbox (look for DeclareListParser and forcsvlist) and of course expl3/LaTeX3 has a lot of list parsing/splitting functions going on.

    – moewe
    7 mins ago











  • We the ready-to-use solutions, can I transform one list sperated with one symbol to the same list separated with another ?

    – projetmbc
    5 mins ago

















There are some ready-made solutions in etoolbox (look for DeclareListParser and forcsvlist) and of course expl3/LaTeX3 has a lot of list parsing/splitting functions going on.

– moewe
7 mins ago





There are some ready-made solutions in etoolbox (look for DeclareListParser and forcsvlist) and of course expl3/LaTeX3 has a lot of list parsing/splitting functions going on.

– moewe
7 mins ago













We the ready-to-use solutions, can I transform one list sperated with one symbol to the same list separated with another ?

– projetmbc
5 mins ago





We the ready-to-use solutions, can I transform one list sperated with one symbol to the same list separated with another ?

– projetmbc
5 mins ago










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