Disable WordPress Formatting

disablewordpressformatting.php

function my_formatter($content) { 
        $new_content = ''; 
        $pattern_full = '{(\[raw\].*?\[/raw\])}is'; 
        $pattern_contents = '{\[raw\](.*?)\[/raw\]}is'; 
        $pieces = preg_split($pattern_full, $content, -1, PREG_SPLIT_DELIM_CAPTURE); 
        foreach ($pieces as $piece) { 
            if (preg_match($pattern_contents, $piece, $matches)) { 
                $new_content .= $matches[1]; 
            } else { 
                $new_content .= wptexturize(wpautop($piece)); 
            } 
        } 
        return $new_content; 
    } 
    remove_filter('the_content', 'wpautop'); 
    remove_filter('the_content', 'wptexturize'); 

    add_filter('the_content', 'my_formatter', 99);

disablewordpressformatting.txt

[raw]My unformatted text[/raw]