Hooks.php

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<?php
 
namespace MediaWiki\Extensions\ParserFunctions;
 
use Parser;
 
class Hooks {
 
    public static function onParserTestGlobals( array &$globals ) {
        $globals['wgPFEnableStringFunctions'] = true;
    }
 
    public static function onParserFirstCallInit( Parser $parser ) {
        global $wgPFEnableStringFunctions;
 
        // These functions accept DOM-style arguments
        $class = ParserFunctions::class;
        $parser->setFunctionHook( 'if', "$class::ifObj", Parser::SFH_OBJECT_ARGS );
        $parser->setFunctionHook( 'ifeq', "$class::ifeqObj", Parser::SFH_OBJECT_ARGS );
        $parser->setFunctionHook( 'switch', "$class::switchObj", Parser::SFH_OBJECT_ARGS );
        $parser->setFunctionHook( 'ifexist', "$class::ifexistObj", Parser::SFH_OBJECT_ARGS );
        $parser->setFunctionHook( 'ifexpr', "$class::ifexprObj", Parser::SFH_OBJECT_ARGS );
        $parser->setFunctionHook( 'iferror', "$class::iferrorObj", Parser::SFH_OBJECT_ARGS );
        $parser->setFunctionHook( 'time', "$class::timeObj", Parser::SFH_OBJECT_ARGS );
        $parser->setFunctionHook( 'timel', "$class::localTimeObj", Parser::SFH_OBJECT_ARGS );
 
        $parser->setFunctionHook( 'expr', "$class::expr" );
        $parser->setFunctionHook( 'rel2abs', "$class::rel2abs" );
        $parser->setFunctionHook( 'titleparts', "$class::titleparts" );
 
        // String Functions: enable if configured
        if ( $wgPFEnableStringFunctions ) {
            $parser->setFunctionHook( 'len',       "$class::runLen" );
            $parser->setFunctionHook( 'pos',       "$class::runPos" );
            $parser->setFunctionHook( 'rpos',      "$class::runRPos" );
            $parser->setFunctionHook( 'sub',       "$class::runSub" );
            $parser->setFunctionHook( 'count',     "$class::runCount" );
            $parser->setFunctionHook( 'replace',   "$class::runReplace" );
            $parser->setFunctionHook( 'explode',   "$class::runExplode" );
            $parser->setFunctionHook( 'urldecode', "$class::runUrlDecode" );
        }
    }
 
    public static function onScribuntoExternalLibraries( $engine, array &$extraLibraries ) {
        if ( $engine === 'lua' ) {
            $extraLibraries['mw.ext.ParserFunctions'] = LuaLibrary::class;
        }
    }
}