public function lineNumbers($lineSeparator, $source, $mark = null)
    {
        $count = count(explode($lineSeparator, $source));
        $tpl = '<span %s>%u</span>';

        $lines = [];
        for ($i = 0; $i < $count; $i++) {
            $lines[] = sprintf($tpl, '', $i + 1);
        }

        $lines[$mark - 1] = sprintf($tpl, 'id="mark"', $mark);

        return sprintf('<table><tr><td>%s</td><td>%s</td></tr></table>', implode($lineSeparator, $lines), $source);
    }
public function lineNumbers($lineSeparator, $source, $mark = null)
    {
        $count = count(explode($lineSeparator, $source));
        $tpl = '<span %s>%u</span>';

        $lines = [];
        for ($i = 0; $i < $count; $i++) {
            $lines[] = sprintf($tpl, '', $i + 1);
        }

        $lines[$mark - 1] = sprintf($tpl, 'id="mark"', $mark);

        return sprintf('<table><tr><td>%s</td><td>%s</td></tr></table>', implode($lineSeparator, $lines), $source);
    }
public function lineNumbers ( $ lineSeparator , $ source , $ mark = null ) { $ count = count ( explode ( $ lineSeparator , $ source ) ) ; $ tpl = '<span %s>%u</span>' ; $ lines = [ ] ; for ( $ i = 0 ; $ i < $ count ; $ i ++ ) { $ lines [ ] = sprintf ( $ tpl , '' , $ i + 1 ) ; } $ lines [ $ mark - 1 ] = sprintf ( $ tpl , 'id="mark"' , $ mark ) ; return sprintf ( '<table><tr><td>%s</td><td>%s</td></tr></table>' , implode ( $ lineSeparator , $ lines ) , $ source ) ; }
Adds line numbers

@param string $lineSeparator
@param string $source
@param int   $mark

@return string
Adds line numbers