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1 | <?php |
2 | |
3 | namespace Kartographer; |
4 | |
5 | /** |
6 | * @license MIT |
7 | */ |
8 | abstract class WikitextParser { |
9 | |
10 | /** |
11 | * @param string $wikiText |
12 | * @return string Fully parsed HTML |
13 | */ |
14 | final public function parseWikitext( string $wikiText ): string { |
15 | return $this->needsParsing( $wikiText ) ? $this->parse( $wikiText ) : $wikiText; |
16 | } |
17 | |
18 | abstract protected function parse( string $wikiText ): string; |
19 | |
20 | private function needsParsing( string $wikiText ): bool { |
21 | // Skip expensive parser calls when there is no wikitext syntax to parse. This is not |
22 | // uncommon in this context. wfEscapeWikiText() is ~400 times faster than the core parser, |
23 | // which means 1 non-wikitext string in 400 is already worth the extra check. Still escaping |
24 | // becomes expensive the longer the string is. Assume long strings are wikitext. |
25 | return ( strlen( $wikiText ) >= 65536 || wfEscapeWikiText( $wikiText ) !== $wikiText ); |
26 | } |
27 | } |