parse.php

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<?php
require_once __DIR__ . '/Maintenance.php';

class CLIParser extends Maintenance {
    protected $parser;

    public function __construct() {
        parent::__construct();
        $this->mDescription = "Parse a given wikitext";
        $this->addOption(
            'title',
            'Title name for the given wikitext (Default: \'CLIParser\')',
            false,
            true
        );
        $this->addArg( 'file', 'File containing wikitext (Default: stdin)', false );
    }

    public function execute() {
        $this->initParser();
        print $this->render( $this->WikiText() );
    }

    public function render( $wikitext ) {
        return $this->parse( $wikitext )->getText();
    }

    protected function Wikitext() {

        $php_stdin = 'php://stdin';
        $input_file = $this->getArg( 0, $php_stdin );

        if ( $input_file === $php_stdin ) {
            $ctrl = wfIsWindows() ? 'CTRL+Z' : 'CTRL+D';
            $this->error( basename( __FILE__ )
                . ": warning: reading wikitext from STDIN. Press $ctrl to parse.\n" );
        }

        return file_get_contents( $input_file );
    }

    protected function initParser() {
        global $wgParserConf;
        $parserClass = $wgParserConf['class'];
        $this->parser = new $parserClass();
    }

    protected function getTitle() {
        $title = $this->getOption( 'title' )
            ? $this->getOption( 'title' )
            : 'CLIParser';

        return Title::newFromText( $title );
    }

    protected function parse( $wikitext ) {
        return $this->parser->parse(
            $wikitext,
            $this->getTitle(),
            new ParserOptions()
        );
    }
}

$maintClass = "CLIParser";
require_once RUN_MAINTENANCE_IF_MAIN;