function processImages($page)
{
foreach (nodes($page, 'img') as $img) {
$show = false;
// $img->getAttribute('class') == '' is used for images inside text with formulas
if ($img->getAttribute('class') == '') {
$show = true;
} elseif (starts(IMAGES, 'explain') && !hasClass($img, 'explanation')) {
$show = false;
} elseif (starts(IMAGES, 'all')) {
$show = true;
}
if (!$show) {
remove($img);
continue;
}
$imageSrc = $img->getAttribute('src');
$imgName = pathinfo(parse_url($imageSrc, PHP_URL_PATH), PATHINFO_BASENAME);
download($imageSrc, BUILD_DIR . '/images/' . $imgName);
$imageSrc = str_replace('http://learnyousomeerlang.com/static/img', '../images', $imageSrc);
$img->setAttribute('src', $imageSrc);
if ($img->getAttribute('class') == '') {
continue;
}
$parent = $img->parentNode;
if (strtolower($parent->nodeName) == 'p') {
$img = $parent->removeChild($img);
$img = appendSibling($img, $parent);
} else {
if ($img->nextSibling && strtolower($img->nextSibling->nodeName) == 'h3') {
$h3 = $img->nextSibling;
$img = $parent->removeChild($img);
$img = appendSibling($img, $h3);
}
}
centerImage($img);
}
}
function remove_node($domElement)
{
if ($domElement->hasChildNodes()) {
$children = $domElement->childNodes;
$toAppend = array();
foreach ($children as $child) {
array_unshift($toAppend, $child);
}
foreach ($toAppend as $child) {
appendSibling($child, $domElement);
}
}
// $domElement->parentNode->removeChild($domElement);
}