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<?php
declare( strict_types = 1 );
namespace MediaWiki\Extension\Translate\Validation\Validators;
use MediaWiki\Extension\Translate\Validation\MessageValidator;
use MediaWiki\Extension\Translate\Validation\ValidationIssue;
use MediaWiki\Extension\Translate\Validation\ValidationIssues;
use Title;
use TMessage;
/**
* Checks if the translation uses links that are discouraged. Valid links are those that link
* to Special: or {{ns:special}}: or project pages trough MediaWiki messages like
* {{MediaWiki:helppage-url}}:. Also links in the definition are allowed.
* @license GPL-2.0-or-later
* @since 2020.02
*/
class MediaWikiLinkValidator implements MessageValidator {
public function getIssues( TMessage $message, string $targetLanguage ): ValidationIssues {
$issues = new ValidationIssues();
$definition = $message->definition();
$translation = $message->translation();
$links = $this->getLinksMissingInTarget( $definition, $translation );
if ( $links !== [] ) {
$issue = new ValidationIssue(
'links',
'missing',
'translate-checks-links-missing',
[
[ 'PARAMS', $links ],
[ 'COUNT', count( $links ) ],
]
);
$issues->add( $issue );
}
$links = $this->getLinksMissingInTarget( $translation, $definition );
if ( $links !== [] ) {
$issue = new ValidationIssue(
'links',
'extra',
'translate-checks-links',
[
[ 'PARAMS', $links ],
[ 'COUNT', count( $links ) ],
]
);
$issues->add( $issue );
}
return $issues;
}
private function getLinksMissingInTarget( string $source, string $target ): array {
$tc = Title::legalChars() . '#%{}';
$matches = $links = [];
preg_match_all( "/\[\[([{$tc}]+)(\\|(.+?))?]]/sDu", $source, $matches );
$count = count( $matches[0] );
for ( $i = 0; $i < $count; $i++ ) {
$backMatch = preg_quote( $matches[1][$i], '/' );
if ( preg_match( "/\[\[$backMatch/", $target ) !== 1 ) {
$links[] = "[[{$matches[1][$i]}{$matches[2][$i]}]]";
}
}
return $links;
}
}
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