To allow for white-spaces, a white-space before each non-white-space.
// "{[%lf;%lf],[%lf;%lf],[%lf;%lf]}"
" { [%lf ;%lf ] , [%lf ;%lf ] , [%lf ;%lf ] }"
Code can also add a space before "%lf", but that does not change functionality as that specifier already consumes optional leading white-space.
" { [ %lf ; %lf ] , [ %lf ; %lf ] , [ %lf ; %lf ] }"
