84 lines
2.1 KiB
PHP
84 lines
2.1 KiB
PHP
<?php
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use DataValues\StringValue;
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use ValueFormatters\Exceptions\MismatchingDataValueTypeException;
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use ValueFormatters\FormattingException;
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use ValueFormatters\ValueFormatter;
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use Wikibase\Lib\SnakFormatter;
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/*
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* Formats the tex string based on the known formats
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* * text/plain: used in the value input field of Wikidata
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* * text/x-wiki: wikitext
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* * text/html: used in Wikidata to display the value of properties
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* Formats can look like this: "text/html; disposition=widget"
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* or just "text/plain"
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*/
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class MathFormatter implements ValueFormatter {
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private $format;
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/*
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* Loads format to distinguish the type of formatting
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*
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* @param string $format
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*
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* @throws InvalidArgumentException
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*/
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public function __construct( $format ) {
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switch ( $format ) {
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case ( SnakFormatter::FORMAT_HTML ):
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case ( SnakFormatter::FORMAT_HTML_DIFF ):
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case ( SnakFormatter::FORMAT_HTML_WIDGET ):
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case ( SnakFormatter::FORMAT_WIKI ):
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case ( SnakFormatter::FORMAT_PLAIN ):
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$this->format = $format;
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break;
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default:
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throw new InvalidArgumentException( 'Unsupported output format: ' . $format );
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}
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}
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/*
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*
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* @param StringValue $value
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*
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* @return string
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* @throws \ValueFormatters\Exceptions\MismatchingDataValueTypeException
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*/
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public function format( $value ) {
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if ( !( $value instanceof StringValue ) ) {
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throw new MismatchingDataValueTypeException( 'StringValue', get_class( $value ) );
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}
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$tex = $value->getValue();
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switch ( $this->format ) {
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case ( SnakFormatter::FORMAT_PLAIN ):
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return "$tex";
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case ( SnakFormatter::FORMAT_WIKI ):
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return "<math>$tex</math>";
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case ( SnakFormatter::FORMAT_HTML ):
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case ( SnakFormatter::FORMAT_HTML_WIDGET ):
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case ( SnakFormatter::FORMAT_HTML_DIFF ):
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$renderer = new MathMathML( $tex );
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if ( $renderer->checkTex() ) {
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if ( $renderer->render() ) {
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return $renderer->getHtmlOutput();
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}
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}
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// TeX string is not valid or rendering failed
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return $renderer->getLastError();
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}
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}
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/**
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*
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* @return format
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*/
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public function getFormat() {
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return $this->format;
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}
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}
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