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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\MMLmo; |
| 10 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmover; |
| 11 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmpadded; |
| 12 | use MediaWiki\Extension\Math\WikiTexVC\MMLnodes\MMLmrow; |
| 13 | use MediaWiki\Extension\Math\WikiTexVC\TexUtil; |
| 14 | |
| 15 | class Fun1 extends TexNode { |
| 16 | |
| 17 | /** @var string */ |
| 18 | protected $fname; |
| 19 | /** @var TexNode */ |
| 20 | protected $arg; |
| 21 | |
| 22 | public function __construct( string $fname, TexNode $arg ) { |
| 23 | parent::__construct( $fname, $arg ); |
| 24 | $this->fname = $fname; |
| 25 | $this->arg = $arg; |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * @return string |
| 30 | */ |
| 31 | public function getFname(): string { |
| 32 | return $this->fname; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * @return TexNode |
| 37 | */ |
| 38 | public function getArg(): TexNode { |
| 39 | return $this->arg; |
| 40 | } |
| 41 | |
| 42 | /** @inheritDoc */ |
| 43 | public function inCurlies() { |
| 44 | return $this->render(); |
| 45 | } |
| 46 | |
| 47 | /** @inheritDoc */ |
| 48 | public function render() { |
| 49 | return '{' . $this->fname . ' ' . $this->arg->inCurlies() . '}'; |
| 50 | } |
| 51 | |
| 52 | /** @inheritDoc */ |
| 53 | public function toMMLTree( array $arguments = [], array &$state = [] ) { |
| 54 | $cb = TexUtil::getInstance()->callback( trim( $this->fname ) ); |
| 55 | if ( is_string( $cb ) && preg_match( '#^' . |
| 56 | preg_quote( self::class ) . |
| 57 | '::(?<method>\\w+)$#', $cb, $m ) ) { |
| 58 | return $this->{$m['method']}( $arguments, $state ); |
| 59 | } |
| 60 | |
| 61 | return $this->parseToMML( $this->fname, $arguments, null ); |
| 62 | } |
| 63 | |
| 64 | public function createMover( string $inner, array $moArgs = [] ): string { |
| 65 | $mrow = new MMLmrow(); |
| 66 | $mo = new MMLmo( "", $moArgs ); |
| 67 | $mover = new MMLmover(); |
| 68 | $ret = $mrow->encapsulateRaw( |
| 69 | $mrow->encapsulateRaw( |
| 70 | $mover->encapsulateRaw( |
| 71 | $this->args[1]->toMMLTree() . |
| 72 | $mo->encapsulateRaw( $inner ) |
| 73 | ) |
| 74 | ) |
| 75 | ); |
| 76 | return $ret; |
| 77 | } |
| 78 | |
| 79 | /** @inheritDoc */ |
| 80 | public function extractIdentifiers( $args = null ) { |
| 81 | if ( $args == null ) { |
| 82 | $args = [ $this->arg ]; |
| 83 | } |
| 84 | $tu = TexUtil::getInstance(); |
| 85 | $letterMods = array_keys( $tu->getBaseElements()['is_letter_mod'] ); |
| 86 | if ( in_array( $this->fname, $letterMods, true ) ) { |
| 87 | $ident = $this->arg->getModIdent(); |
| 88 | if ( !isset( $ident[0] ) ) { |
| 89 | return parent::extractIdentifiers( $args ); |
| 90 | } |
| 91 | // in difference to javascript code: taking first element of array here. |
| 92 | return [ $this->fname . '{' . $ident[0] . '}' ]; |
| 93 | |
| 94 | } elseif ( array_key_exists( $this->fname, $tu->getBaseElements()['ignore_identifier'] ) ) { |
| 95 | return []; |
| 96 | } |
| 97 | |
| 98 | return parent::extractIdentifiers( $args ); |
| 99 | } |
| 100 | |
| 101 | /** @inheritDoc */ |
| 102 | public function extractSubscripts() { |
| 103 | return $this->getSubs( $this->arg->extractSubscripts() ); |
| 104 | } |
| 105 | |
| 106 | /** @inheritDoc */ |
| 107 | public function getModIdent() { |
| 108 | return $this->getSubs( $this->arg->getModIdent() ); |
| 109 | } |
| 110 | |
| 111 | private function getSubs( array $subs ): array { |
| 112 | $letterMods = array_keys( TexUtil::getInstance()->getBaseElements()['is_letter_mod'] ); |
| 113 | |
| 114 | if ( isset( $subs[0] ) && in_array( $this->fname, $letterMods, true ) ) { |
| 115 | // in difference to javascript code: taking first element of array here. |
| 116 | return [ $this->fname . '{' . $subs[0] . '}' ]; |
| 117 | } |
| 118 | return []; |
| 119 | } |
| 120 | |
| 121 | private function lap(): MMLmrow { |
| 122 | $name = $this->fname; |
| 123 | if ( trim( $name ) === "\\rlap" ) { |
| 124 | $args = [ "width" => "0" ]; |
| 125 | } elseif ( trim( $name ) === "\\llap" ) { |
| 126 | $args = [ "width" => "0", "lspace" => "-1width" ]; |
| 127 | } else { |
| 128 | throw new InvalidArgumentException( |
| 129 | "Unsupported function for lap: $name" |
| 130 | ); |
| 131 | } |
| 132 | return new MMLmrow( TexClass::ORD, [], |
| 133 | new MMLmpadded( "", $args, $this->getArg()->toMMLTree() ) ); |
| 134 | } |
| 135 | |
| 136 | } |