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https://github.com/smogon/pokemon-showdown-client.git
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85 lines
2.6 KiB
PHP
85 lines
2.6 KiB
PHP
<?php
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/**
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* @file
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* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
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*/
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namespace Wikimedia\CSS\Sanitizer;
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use Wikimedia\CSS\Grammar\Alternative;
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use Wikimedia\CSS\Grammar\Matcher;
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use Wikimedia\CSS\Grammar\MatcherFactory;
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use Wikimedia\CSS\Grammar\Quantifier;
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use Wikimedia\CSS\Objects\AtRule;
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use Wikimedia\CSS\Objects\CSSObject;
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use Wikimedia\CSS\Objects\Rule;
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use Wikimedia\CSS\Util;
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/**
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* Sanitizes a CSS \@font-feature-values rule
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* @see https://www.w3.org/TR/2013/CR-css-fonts-3-20131003/#at-font-feature-values-rule
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*/
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class FontFeatureValuesAtRuleSanitizer extends RuleSanitizer {
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/** @var Matcher */
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protected $fontListMatcher;
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/** @var FontFeatureValueAtRuleSanitizer[] */
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protected $ruleSanitizers;
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/**
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* @param MatcherFactory $matcherFactory
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*/
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public function __construct( MatcherFactory $matcherFactory ) {
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$this->fontListMatcher = Quantifier::hash( new Alternative( [
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$matcherFactory->string(),
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Quantifier::plus( $matcherFactory->ident() ),
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] ) );
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$n = $matcherFactory->rawNumber();
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$n2 = Quantifier::count( $n, 1, 2 );
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$nPlus = Quantifier::plus( $n );
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$this->ruleSanitizers = [
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new FontFeatureValueAtRuleSanitizer( 'stylistic', $n ),
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new FontFeatureValueAtRuleSanitizer( 'styleset', $nPlus ),
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new FontFeatureValueAtRuleSanitizer( 'character-variant', $n2 ),
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new FontFeatureValueAtRuleSanitizer( 'swash', $n ),
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new FontFeatureValueAtRuleSanitizer( 'ornaments', $n ),
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new FontFeatureValueAtRuleSanitizer( 'annotation', $n ),
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];
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}
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public function handlesRule( Rule $rule ) {
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return $rule instanceof AtRule && !strcasecmp( $rule->getName(), 'font-feature-values' );
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}
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protected function doSanitize( CSSObject $object ) {
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if ( !$object instanceof Rule || !$this->handlesRule( $object ) ) {
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$this->sanitizationError( 'expected-at-rule', $object, [ 'font-feature-values' ] );
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return null;
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}
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if ( $object->getBlock() === null ) {
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$this->sanitizationError( 'at-rule-block-required', $object, [ 'font-feature-values' ] );
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return null;
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}
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// Test the page selector
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if ( !$this->fontListMatcher->match( $object->getPrelude(), [ 'mark-significance' => true ] ) ) {
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$cv = Util::findFirstNonWhitespace( $object->getPrelude() );
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if ( $cv ) {
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$this->sanitizationError( 'invalid-font-feature-values-font-list', $cv );
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} else {
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$this->sanitizationError( 'missing-font-feature-values-font-list', $object );
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}
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return null;
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}
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$ret = clone( $object );
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$this->fixPreludeWhitespace( $ret, false );
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$this->sanitizeRuleBlock( $ret->getBlock(), $this->ruleSanitizers );
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return $ret;
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}
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}
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