Dynamic Arguments

The +args flag enables parameterized chord definitions. Here is an example:

Dynamic

[
    (a "Alternative" +args  "~/.config/music-player/playlist/alternative.m3u")
    (e "Electronic"  +args  "~/.config/music-player/playlist/electronic.m3u")
    (p "Pop Punk"    +args  "--shuffle ~/.config/music-player/playlist/pop-punk.m3u")
    m
] "Music Player" %{{music-player %($0)}}

Static

a "Alternative"  %{{music-player ~/.config/music-player/playlist/alternative.m3u}}
e "Electronic"   %{{music-player ~/.config/music-player/playlist/electronic.m3u}}
p "Pop Punk"     %{{music-player --shuffle ~/.config/music-player/playlist/pop-punk.m3u}}
m "Music Player" %{{music-player}}

Positional interpolations - %($0), %($1), etc. - are defined with the +args flag. In the above example %($0) is not defined for the “Music Player” chord. Any undefined argument is equivalent to the empty string, making it generally harmless to use any undefined arguments.

Attention

The +args flag has a lot of nuance - please consult the documentation if you plan on getting creative.