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perl -MTk -MTk::TextString -w -le '%d=qw(-side left); $mw=MainWindow->new; @f=map{$mw->Frame->pack} 1..3; @t=map{my $v; $f[0]->TextString(-height => 2, -variable => \$v)->pack(%d); \$v} @f; $f[1]->Entry(-textvariable => $_)->pack(%d) for @t; $f[2]->B...

# Scolled multiple text boxes through single -variable (PTk,tie,user module)
perl -MTk -MTk::TextStrings -w -le '%d=qw(-side left); $mw=MainWindow->new; @f=map{$mw->Frame->pack} 1..3; @t=map{$f[0]->TextStrings(-height => 2, -variable => \$v)->pack(%d); \$v} @f; $f[1]->Entry(-textvariable => $_)->pack(%d) for @t; $f[2]->Button...

# Can text widget and entry widget are synced (PTk, tie,user module)
perl -MTk -MTk::TextStrings -le '$mw=MainWindow->new; $mw->TextStrings(-height => 2, -variable => \$v)->pack; $mw->Entry(-textvariable => \$v)->pack; MainLoop'


#############################################################
## Perl Modules - Try::Tiny
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# Simple approach to catching errors
# Try Catch return are subroutine based. Below return unexpectedly (at first) "BBB"
# WARNING: It has issues. Unpredictable syntax
perl -MTry::Tiny -lE 'sub try_me{ try{1/0}catch{say "Caught [$@]"; return "AAA"}; return "BBB" } $v=try_me; say $v'

# A better try/catch approach (only on lnxbr42)
# WARNING: It has issues. Highly dependent upon Perl changes
perl -MTryCatch -lE 'sub try_me{ try{1/0}catch{say "Caught [$@]"; return "AAA"}; return "BBB" } $v=try_me; say $v'


#############################################################
## Perl Modules - Unicode::Normalize
#############################################################