If all lines of a block of text contains leading space/s, I want to left justify by removing as many leading spaces as possible.

my $s = <<'EOS';
 hello
  there
   test
EOS
my $m = 32000;   # regex /^ {$m}/ blows up if $m > 32766
while ($s =~ /^( *)/mg) { $m = length($1) if length($1) < $m }
$s =~ s/^ {$m}//mg if $m;

[download]

Improvements welcome.

In reply to Remove leading spaces (left justify) by eyepopslikeamosquito

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