Simplify commands' same

Hi,


I use these commands in a plugin:

command! -nargs=0 Explore
\ call explorer#explorePaths(get(b:array,line(".")-1))

command! -nargs=0 ExplorerUniteLauncher
\call explorer#UniteLauncher(get(b:array,line(".")-1))

command! -nargs=0 ExplorerUniteRenamer
\call explorer#UniteRenamer(get(b:array,line(".")-1))

command! -nargs=0 ExplorerUniteDeleter
\call explorer#UniteDeleter(get(b:array,line(".")-1),1)


How can I "register" the arg value which is always the same one :

get(b:array,line(".")-1)

Thank you
NiVa


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