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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\MMLmappings\BaseMethods; |
| 8 | use MediaWiki\Extension\Math\WikiTexVC\MMLmappings\TexConstants\TexClass; |
| 9 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmo; |
| 10 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmrow; |
| 11 | |
| 12 | class Lr extends TexNode { |
| 13 | |
| 14 | /** @var string */ |
| 15 | private $left; |
| 16 | /** @var string */ |
| 17 | private $right; |
| 18 | /** @var TexArray */ |
| 19 | private $arg; |
| 20 | |
| 21 | public function __construct( string $left, string $right, TexArray $arg ) { |
| 22 | parent::__construct( $left, $right, $arg ); |
| 23 | $this->left = $left; |
| 24 | $this->right = $right; |
| 25 | $this->arg = $arg; |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * @return string |
| 30 | */ |
| 31 | public function getLeft(): string { |
| 32 | return $this->left; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * @return string |
| 37 | */ |
| 38 | public function getRight(): string { |
| 39 | return $this->right; |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * @return TexArray |
| 44 | */ |
| 45 | public function getArg(): TexArray { |
| 46 | return $this->arg; |
| 47 | } |
| 48 | |
| 49 | /** @inheritDoc */ |
| 50 | public function inCurlies() { |
| 51 | return '{' . $this->render() . '}'; |
| 52 | } |
| 53 | |
| 54 | /** @inheritDoc */ |
| 55 | public function render() { |
| 56 | return '\\left' . $this->left . $this->arg->render() . '\\right' . $this->right; |
| 57 | } |
| 58 | |
| 59 | /** @inheritDoc */ |
| 60 | public function renderMML( $arguments = [], &$state = [] ) { |
| 61 | // TBD set attributes for right AND left correctly |
| 62 | $rightAttrs = []; |
| 63 | if ( $this->right == "." ) { |
| 64 | $rightAttrs = [ "fence" => "true", "stretchy" => "true", "symmetric" => "true" ]; |
| 65 | } |
| 66 | |
| 67 | $bm = new BaseMethods(); |
| 68 | $left = $bm->checkAndParseDelimiter( $this->left, $this, [], null, true, |
| 69 | TexClass::OPEN ); |
| 70 | if ( !$left ) { |
| 71 | $moLeft = new MMLmo( TexClass::OPEN, [] ); |
| 72 | $left = $moLeft->encapsulateRaw( $this->right ); |
| 73 | } |
| 74 | $right = $bm->checkAndParseDelimiter( $this->right, $this, $rightAttrs, null, true, |
| 75 | TexClass::CLOSE ); |
| 76 | if ( !$right ) { |
| 77 | $moRight = new MMLmo( TexClass::CLOSE, $rightAttrs ); |
| 78 | $right = $moRight->encapsulateRaw( $this->right ); |
| 79 | } |
| 80 | // Don't apply outer ' inside the LR structure |
| 81 | unset( $state['deriv'] ); |
| 82 | $inner = $this->getArg()->renderMML( [], $state ); |
| 83 | $mrow = new MMLmrow( TexClass::INNER ); |
| 84 | return $mrow->encapsulateRaw( |
| 85 | $left . $inner . |
| 86 | $right |
| 87 | ); |
| 88 | } |
| 89 | |
| 90 | private function mmlTranslate( string $input ): string { |
| 91 | switch ( trim( $input ) ) { |
| 92 | case "\\vert": |
| 93 | return "|"; |
| 94 | default: |
| 95 | return $input; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | /** @inheritDoc */ |
| 100 | public function containsFunc( $target, $args = null ) { |
| 101 | if ( $args == null ) { |
| 102 | $args = [ '\\left', '\\right', $this->arg ]; |
| 103 | } |
| 104 | return parent::containsFunc( $target, $args ); |
| 105 | } |
| 106 | |
| 107 | /** @inheritDoc */ |
| 108 | public function extractIdentifiers( $args = null ) { |
| 109 | if ( $args == null ) { |
| 110 | $args = [ $this->arg ]; |
| 111 | } |
| 112 | return parent::extractIdentifiers( $args ); |
| 113 | } |
| 114 | |
| 115 | } |