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| renderMML | |
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| 1 | <?php |
| 2 | |
| 3 | declare( strict_types = 1 ); |
| 4 | |
| 5 | namespace MediaWiki\Extension\Math\WikiTexVC\Nodes; |
| 6 | |
| 7 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmi; |
| 8 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmover; |
| 9 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmrow; |
| 10 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmsup; |
| 11 | use MediaWiki\Extension\Math\WikiTexVC\TexUtil; |
| 12 | |
| 13 | class UQ extends TexNode { |
| 14 | |
| 15 | /** @var TexNode */ |
| 16 | private $base; |
| 17 | /** @var TexNode */ |
| 18 | private $up; |
| 19 | |
| 20 | public function __construct( TexNode $base, TexNode $up ) { |
| 21 | parent::__construct( $base, $up ); |
| 22 | $this->base = $base; |
| 23 | $this->up = $up; |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * @return TexNode |
| 28 | */ |
| 29 | public function getBase(): TexNode { |
| 30 | return $this->base; |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * @return TexNode |
| 35 | */ |
| 36 | public function getUp(): TexNode { |
| 37 | return $this->up; |
| 38 | } |
| 39 | |
| 40 | public function render() { |
| 41 | return $this->base->render() . '^' . $this->up->inCurlies(); |
| 42 | } |
| 43 | |
| 44 | public function renderMML( $arguments = [], $state = [] ) { |
| 45 | $mrow = new MMLmrow(); |
| 46 | $mmlBase = new MMLmsup(); |
| 47 | $base = $this->getBase(); |
| 48 | $up = $this->getUp(); |
| 49 | |
| 50 | $tu = TexUtil::getInstance(); |
| 51 | |
| 52 | if ( $base instanceof Fun1 && $tu->over_operator( $base->getFname() ) ) { |
| 53 | $mmlBase = new MMLmover(); |
| 54 | } |
| 55 | |
| 56 | // If the superscript has empty elements, render them with empty mi elements to prevent browser issues |
| 57 | $mi = new MMLmi(); |
| 58 | if ( $base instanceof TexArray && $base->getLength() == 0 ) { |
| 59 | $baseRendered = $mi->getEmpty(); |
| 60 | } else { |
| 61 | $baseRendered = $base->renderMML( $arguments, $state ); |
| 62 | } |
| 63 | if ( $up instanceof TexArray && $up->getLength() == 0 ) { |
| 64 | $upRendered = $mi->getEmpty(); |
| 65 | } else { |
| 66 | // up is inferring a new mrow if it has some content |
| 67 | $upRendered = $mrow->encapsulateRaw( $up->renderMML( $arguments, $state ) ); |
| 68 | } |
| 69 | |
| 70 | return $mmlBase->encapsulateRaw( $baseRendered . $upRendered ); |
| 71 | } |
| 72 | |
| 73 | } |