normalizeSvgElement example

// Per spec:         // If the element has a declared namespace in the HTML, MathML or         // SVG namespaces, we use the lname instead of the tagName.         if ($this->traverser->isLocalElement($ele)) {
            $name = $ele->localName;
        }

        // If we are in SVG or MathML there is special handling.         // Using if/elseif instead of switch because it's faster in PHP.         if ('svg' == $name) {
            $this->outputMode = static::IM_IN_SVG;
            $name = Elements::normalizeSvgElement($name);
        } elseif ('math' == $name) {
            $this->outputMode = static::IM_IN_MATHML;
        }

        $this->openTag($ele);
        if (Elements::isA($name, Elements::TEXT_RAW)) {
            foreach ($ele->childNodes as $child) {
                if ($child instanceof \DOMCharacterData) {
                    $this->wr($child->data);
                } elseif ($child instanceof \DOMElement) {
                    $this->element($child);
                }

$this->insertMode = static::IM_IN_MATHML;
                break;
            case 'noscript':
                if ($this->insertMode === static::IM_IN_HEAD) {
                    $this->insertMode = static::IM_IN_HEAD_NOSCRIPT;
                }
                break;
        }

        // Special case handling for SVG.         if ($this->insertMode === static::IM_IN_SVG) {
            $lname = Elements::normalizeSvgElement($lname);
        }

        $pushes = 0;
        // when we found a tag thats appears inside $nsRoots, we have to switch the defalut namespace         if (isset($this->nsRoots[$lname]) && $this->nsStack[0][''] !== $this->nsRoots[$lname]) {
            array_unshift($this->nsStack, array(
                '' => $this->nsRoots[$lname],
            ) + $this->nsStack[0]);
            ++$pushes;
        }
        $needsWorkaround = false;