protected function parseHeader(Text $header, Collection $baseTags)
    {
        $cells = new Collection();

        try {
            $header->split('/\|/')->each(function (Text $cell, $index) use ($baseTags, &$cells) {
                /* @var Tag $tag */
                $tag = clone $baseTags->get($index);
                $tag->setName('th');
                $this->markdown->emit('inline', array($cell));
                $tag->setText($cell->trim());

                $cells->add($tag);
            });
        } catch (\OutOfBoundsException $e) {
            throw new SyntaxError(
                'Too much cells on table header.',
                $this, $header, $this->markdown, $e
            );
        }

        if ($baseTags->count() != $cells->count()) {
            throw new SyntaxError(
                'Unexpected number of table cells in header.',
                $this, $header, $this->markdown
            );
        }

        return $cells;
    }
protected function parseHeader(Text $header, Collection $baseTags)
    {
        $cells = new Collection();

        try {
            $header->split('/\|/')->each(function (Text $cell, $index) use ($baseTags, &$cells) {
                /* @var Tag $tag */
                $tag = clone $baseTags->get($index);
                $tag->setName('th');
                $this->markdown->emit('inline', array($cell));
                $tag->setText($cell->trim());

                $cells->add($tag);
            });
        } catch (\OutOfBoundsException $e) {
            throw new SyntaxError(
                'Too much cells on table header.',
                $this, $header, $this->markdown, $e
            );
        }

        if ($baseTags->count() != $cells->count()) {
            throw new SyntaxError(
                'Unexpected number of table cells in header.',
                $this, $header, $this->markdown
            );
        }

        return $cells;
    }
@param Text       $header
@param Collection $baseTags

@throws \Ciconia\Exception\SyntaxError

@return Collection