private function boxify($text, $chars)
{
/*{{{*/
$chars = explode(",", $chars);
$num_chars = count($chars);
if ($num_chars == 2) {
$n = $s = $chars[0];
$e = $w = $nw = $ne = $se = $sw = $chars[1];
} else {
if ($num_chars == 3) {
$nw = $ne = $se = $sw = $chars[0];
$n = $s = $chars[1];
$e = $w = $chars[2];
} else {
throw new \InvalidArgumentException("Invalid format for box characters");
}
}
$width = Text\MultiByte::text_width($text, $this->charset);
$output = $nw . str_repeat($n, $width + 2) . $ne . "\n";
foreach (explode("\n", $text) as $line) {
$output .= $w . ' ' . Text\MultiByte::str_pad($line, $width) . ' ' . $e . "\n";
}
$output .= $sw . str_repeat($s, $width + 2) . $se . "\n";
return $output;
}
