ChemWord.php
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ChemWord.php
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	<?php

	declare( strict_types = 1 );

	namespace MediaWiki\Extension\Math\WikiTexVC\Nodes;

	use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmrow;
	use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmtext;

	class ChemWord extends TexNode {

	/** @var TexNode */
	public $left;
	/** @var TexNode */
	public $right;

	public function __construct( TexNode $left, TexNode $right ) {
	parent::__construct( $left, $right );
	$this->left = $left;
	$this->right = $right;
	}

	/**
	* @return TexNode
	*/
	public function getLeft(): TexNode {
	return $this->left;
	}

	/**
	* @return TexNode
	*/
	public function getRight(): TexNode {
	return $this->right;
	}

	/** @inheritDoc */
	public function render() {
	return $this->left->render() . $this->right->render();
	}

	/** @inheritDoc */
	public function renderMML( $arguments = [], &$state = [] ) {
	$mmlMrow = new MMLmrow();
	$mtextLeft = new MMLmtext( "", [ "mathcolor" => "red" ] );
	$mtextRight = new MMLmtext();
	// If right has empty literal content is resolved as dash
	$right = $this->getRight()->getArgs()[0] == "" ? "-" : $this->getRight()->renderMML( [],
	$state );
	return $mmlMrow->encapsulateRaw( $mmlMrow->encapsulateRaw(
	$mtextLeft->encapsulateRaw( $this->getLeft()->renderMML( [], $state ) )
	. $mtextRight->encapsulateRaw( $right ) ) );
	}

	/** @inheritDoc */
	public function extractIdentifiers( $args = null ) {
	return [];
	}

	}