ParserTestParserHook.php

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<?php
class ParserTestParserHook {
 
    static function setup( &$parser ) {
        $parser->setHook( 'tag', [ __CLASS__, 'dumpHook' ] );
        $parser->setHook( 'tåg', [ __CLASS__, 'dumpHook' ] );
        $parser->setHook( 'statictag', [ __CLASS__, 'staticTagHook' ] );
        return true;
    }
 
    static function dumpHook( $in, $argv ) {
        return "<pre>\n" .
            var_export( $in, true ) . "\n" .
            var_export( $argv, true ) . "\n" .
            "</pre>";
    }
 
    static function staticTagHook( $in, $argv, $parser ) {
        if ( !count( $argv ) ) {
            $parser->static_tag_buf = $in;
            return '';
        } elseif ( count( $argv ) === 1 && isset( $argv['action'] )
            && $argv['action'] === 'flush' && $in === null
        ) {
            // Clear the buffer, we probably don't need to
            if ( isset( $parser->static_tag_buf ) ) {
                $tmp = $parser->static_tag_buf;
            } else {
                $tmp = '';
            }
            $parser->static_tag_buf = null;
            return $tmp;
        } else { // wtf?
            return "\nCall this extension as <statictag>string</statictag> or as" .
                " <statictag action=flush/>, not in any other way.\n" .
                "text: " . var_export( $in, true ) . "\n" .
                "argv: " . var_export( $argv, true ) . "\n";
        }
    }
}