Hi

When I add 

puts "What is $output"
return $output

[download]

I get "What is" a whole bunch of times

$output is empty

I'm confused as to when to use "output" and when to use "$output" and I think you are too

If I use  lappend output $sofar instead I get a list sometimes 

What is {2 2 2 2 2}
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is {2 2 3 3}
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is {2 3 5}
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is
What is {5 5}
What is
What is
What is
What is
What is
What is

[download]

Clearly tcl is one step above brain**ck :/

You might get further if you study below and sprinkle in more parens / uplevel/upvar / and whatnots :)

http://pleac.sourceforge.net/pleac_tcl/subroutines.html could use some help :)

https://wiki.tcl-lang.org/page/Recursive+functions

https://stackoverflow.com/questions/33706216/recursive-tcl-procedure-does-not-return-anything

http://www.tcl.tk/man/tcl8.5/TclCmd/uplevel.htm

http://www.tcl.tk/man/tcl8.5/TclCmd/upvar.htm

In reply to Re: convert script from perl to tcl (brain....) by Anonymous Monk
in thread convert script from perl to tcl by dideod.yang

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