# fmt("text",width);
#----------------------------------------------------------------------
# Wraps long lines to manageable size. If a word is too long, the line
# length is temporarily raised until the word does fit.
sub fmt {
  my $text=shift;               # Input text
  my $width=shift;              # Desired width
  $width=70 if(!$width);        # Default to 70 if omitted
  my $rc="";                    # Return value
  my $cll=$width;               # Current line length
  my $cp=0;                     # Current position
  my $i;                        # Index to last space.
  my $lot=length($text);        # Length of $text.
  $text=~s/\s+/ /g;             # Reduce all series of whitespace to one

  while($cp+$cll < $lot) {
    print STDERR "cp=$cp cll=$cll\n";
    while((($i=rindex($text," ",$cp+$cll))<=$cp) && $cp+$cll < $lot) {
      $cll+=$width;
    }
    if($i>$cp) {
      $rc=$rc.substr($text,$cp,$i-$cp)."\n";
      $cp=$i+1;
      $cll=$width;
    }
  }
  $rc=$rc.substr($text,$cp)."\n";
  return $rc;
}