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| 1 | <?php |
| 2 | |
| 3 | declare( strict_types = 1 ); |
| 4 | |
| 5 | namespace MediaWiki\Extension\Math\WikiTexVC\Nodes; |
| 6 | |
| 7 | use InvalidArgumentException; |
| 8 | use MediaWiki\Extension\Math\WikiTexVC\MMLmappings\TexConstants\TexClass; |
| 9 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLbase; |
| 10 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmo; |
| 11 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmover; |
| 12 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmpadded; |
| 13 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmrow; |
| 14 | use MediaWiki\Extension\Math\WikiTexVC\TexUtil; |
| 15 | |
| 16 | class Fun1 extends TexNode { |
| 17 | |
| 18 | public function __construct( |
| 19 | protected readonly string $fname, |
| 20 | protected readonly TexNode $arg, |
| 21 | ) { |
| 22 | parent::__construct( $fname, $arg ); |
| 23 | } |
| 24 | |
| 25 | public function getFname(): string { |
| 26 | return $this->fname; |
| 27 | } |
| 28 | |
| 29 | public function getArg(): TexNode { |
| 30 | return $this->arg; |
| 31 | } |
| 32 | |
| 33 | /** @inheritDoc */ |
| 34 | public function inCurlies() { |
| 35 | return $this->render(); |
| 36 | } |
| 37 | |
| 38 | /** @inheritDoc */ |
| 39 | public function render() { |
| 40 | return '{' . $this->fname . ' ' . $this->arg->inCurlies() . '}'; |
| 41 | } |
| 42 | |
| 43 | /** @inheritDoc */ |
| 44 | public function toMMLTree( array $arguments = [], array &$state = [] ): MMLbase { |
| 45 | $cb = $this->getLocalCallback( trim( $this->fname ), $arguments, [], $state ); |
| 46 | if ( !$cb->isEmpty() ) { |
| 47 | return $cb; |
| 48 | } |
| 49 | return $this->parseToMML( $this->fname, $arguments, null ); |
| 50 | } |
| 51 | |
| 52 | public function createMover( string $inner, array $moArgs = [] ): MMLbase { |
| 53 | return new MMLmrow( TexClass::ORD, [], |
| 54 | new MMLmrow( TexClass::ORD, [], |
| 55 | ( new MMLmover() )::newSubtree( $this->args[1]->toMMLTree(), |
| 56 | new MMLmo( "", $moArgs, $inner ) ) |
| 57 | ) |
| 58 | ); |
| 59 | } |
| 60 | |
| 61 | /** @inheritDoc */ |
| 62 | public function extractIdentifiers( $args = null ) { |
| 63 | if ( $args == null ) { |
| 64 | $args = [ $this->arg ]; |
| 65 | } |
| 66 | $tu = TexUtil::getInstance(); |
| 67 | $letterMods = array_keys( $tu->getBaseElements()['is_letter_mod'] ); |
| 68 | if ( in_array( $this->fname, $letterMods, true ) ) { |
| 69 | $ident = $this->arg->getModIdent(); |
| 70 | if ( !isset( $ident[0] ) ) { |
| 71 | return parent::extractIdentifiers( $args ); |
| 72 | } |
| 73 | // in difference to javascript code: taking first element of array here. |
| 74 | return [ $this->fname . '{' . $ident[0] . '}' ]; |
| 75 | |
| 76 | } elseif ( array_key_exists( $this->fname, $tu->getBaseElements()['ignore_identifier'] ) ) { |
| 77 | return []; |
| 78 | } |
| 79 | |
| 80 | return parent::extractIdentifiers( $args ); |
| 81 | } |
| 82 | |
| 83 | /** @inheritDoc */ |
| 84 | public function extractSubscripts() { |
| 85 | return $this->getSubs( $this->arg->extractSubscripts() ); |
| 86 | } |
| 87 | |
| 88 | /** @inheritDoc */ |
| 89 | public function getModIdent() { |
| 90 | return $this->getSubs( $this->arg->getModIdent() ); |
| 91 | } |
| 92 | |
| 93 | private function getSubs( array $subs ): array { |
| 94 | $letterMods = array_keys( TexUtil::getInstance()->getBaseElements()['is_letter_mod'] ); |
| 95 | |
| 96 | if ( isset( $subs[0] ) && in_array( $this->fname, $letterMods, true ) ) { |
| 97 | // in difference to javascript code: taking first element of array here. |
| 98 | return [ $this->fname . '{' . $subs[0] . '}' ]; |
| 99 | } |
| 100 | return []; |
| 101 | } |
| 102 | |
| 103 | protected function lap(): MMLmrow { |
| 104 | $name = $this->fname; |
| 105 | if ( trim( $name ) === "\\rlap" ) { |
| 106 | $args = [ "width" => "0" ]; |
| 107 | } elseif ( trim( $name ) === "\\llap" ) { |
| 108 | $args = [ "width" => "0", "lspace" => "-1width" ]; |
| 109 | } else { |
| 110 | throw new InvalidArgumentException( |
| 111 | "Unsupported function for lap: $name" |
| 112 | ); |
| 113 | } |
| 114 | return new MMLmrow( TexClass::ORD, [], |
| 115 | new MMLmpadded( "", $args, $this->getArg()->toMMLTree() ) ); |
| 116 | } |
| 117 | |
| 118 | } |