[fossil-users] TH1 - make 1d list from 2d list?

[Erlend Leganger]

I want to create a one dimensional list from a two dimensional source
list. Here is what I have done:

set twoDlist{
   {UN "United Nations"}
   {EU "European Union}
   {BRICS "Brazil, Russia, India, China, South Africa}
}

set oneDlist ""
for {set x 0} {$x < [llength $twoDlist]} {set x [expr {$x + 1}]} {
   set oneDlist "$oneDlist [lindex [lindex $twoDlist $x] 0]"
}

This works (the resulting list contains {UN EU BRICS}), but it seems
clunky. Is there are more elegant way to do this?

Cheers,
Erlend
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