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Declh.php
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Declh.php
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<?php
declare( strict_types = 1 );
namespace MediaWiki\Extension\Math\WikiTexVC\Nodes;
class Declh extends TexNode {
/** @var string */
private $fname;
/** @var TexArray */
private $arg;
public function __construct( string $fname, TexArray $arg ) {
parent::__construct( $fname, $arg );
$this->fname = $fname;
$this->arg = $arg;
}
/**
* @return string
*/
public function getFname(): string {
return $this->fname;
}
/**
* @return TexArray
*/
public function getArg(): TexArray {
return $this->arg;
}
/** @inheritDoc */
public function inCurlies() {
return $this->render();
}
/** @inheritDoc */
public function render() {
return '{' . $this->fname . ' ' . $this->arg->inCurlies() . '}';
}
/** @inheritDoc */
public function renderMML( $arguments = [], &$state = [] ) {
return $this->parseToMML( $this->fname, $arguments, null );
}
/** @inheritDoc */
public function extractIdentifiers( $args = null ) {
if ( $args == null ) {
$args = [ $this->arg ];
}
$identifier = parent::extractIdentifiers( $args );
if ( isset( $identifier[0] ) ) {
return [ implode( '', $identifier ) ];
}
return $identifier;
}
/** @inheritDoc */
public function extractSubscripts() {
$f = $this->fname;
// @see
// http://tex.stackexchange.com/questions/98406/which-command-should-i-use-for-textual-subscripts-in-math-mode
// cf https://phabricator.wikimedia.org/T56818 a is always RM
// for f there are only four cases
switch ( $f ) {
case '\\rm':
$f = '\\mathrm';
break;
case '\\it':
$f = '\\mathit';
break;
case '\\cal':
$f = '\\mathcal';
break;
case '\\bf':
$f = '\\mathbf';
}
$x = $this->arg->extractSubscripts();
if ( isset( $x[0] ) ) {
return [ $f . '{' . $x . '}' ];
}
return parent::extractSubscripts();
}
}

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Tue, Aug 18, 15:00 (3 w, 6 d ago)
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Declh.php (1 KB)

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