public function crawl_chapter($v)
{
$ifx = Text::create($v['infix'])->pad(3)->to_s();
$p = new Page($v['url']);
// ada dua kemungkinan, 1 vol berisi n chap atau 1 chap saja
$p->go_line_or(array('data[volumechapter]', 'data[pages]'));
if ($p->curr_line()->contain('data[volumechapter]')) {
$volchaps = array();
do {
$line = $p->curr_line();
if ($line->contain('</option>')) {
$volchaps[$line->cut_between('value="', '"')->to_s()] = $line->cut_between('>', '</option')->to_s();
}
} while (!$p->next_line()->contain('</select><br'));
// traverse per chapter
foreach ($volchaps as $key2 => $val2) {
$url2 = dirname($v['url']) . '/' . $key2;
$this->crawl_page($url2, $ifx);
}
} else {
if ($p->curr_line()->contain('data[pages]')) {
$this->crawl_page($v['url'], $ifx);
}
}
}
