Preventing tinyMCE from auto formatting selected blocks of content

Question

Is there a way to prevent tinyMCE from auto formatting the content inside selected blocks? Something like

<!--dont-alter-->
variable range of content, text, < , ], images etc., that will not be touched by tinyMCE.
<!--end:dont:alter-->

so that when switching between editors, the content is unchanged? I have done tinyMCE plugins before, but would really appreciate some directions here.

Above functionality would be very helpful, allowing control over formatting.

Please share you wisdom. Thanks.

Answer 1

You can try adding this to your functions.php file:

<?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);
?>

Once you've added that and saved the file, you can wrap the code you don't want formatted with a shortcode:

[raw]Unformatted code[/raw]

SOURCE: http://www.wprecipes.com/disable-wordpress-automatic-formatting-on-posts-using-a-shortcode

NOTE: I haven't tested this solution, but it comes from a reliable source.