TinyMCE clobbering multi-line tags with line breaks.

Possibly related, but possibly not. I also have two shortcodes for div’s. The first shortcode opens the div and supports a class: [open_div class=”CustomClass”]. The second closed the div.

Open div:

function Div($atts){ $a = shortcode_atts( array( 'class' => 'NONE' ), $atts ); $DivClass = $a['class']; $Div = '<div class="'.$DivClass.'">'; return $Div;
} add_shortcode('open_div', 'Div');

Close Div:
function CloseDiv(){ $CloseDiv = '</div>'; return $CloseDiv; } add_shortcode('close_div', 'CloseDiv');

I love these two shortcodes because I can structure a page and not worry about my div’s vanishing due to visual mode.

My understanding is that the classic editor plugin is to render the classic editor “indistinguishable” from the way it was before Gutenberg, as in the exact same support – but don’t quote me on that, I am not the plugin developer.

My dev site is WordPress 5.0, Classic Editor 1.1, and my from scratch theme (stripped-down, minimal plugins) and I am able to use the below without issue. It seems the filters work but this is obviously not a comprehensive list, just a sample.

Remove editor
remove_post_type_support( 'post_type', 'editor');

Allow span, i and other “empty” tags

function override_mce_options($initArray) {
$opts = '*[*]';
$initArray['valid_elements'] = $opts;
$initArray['extended_valid_elements'] = $opts;
return $initArray;
}
add_filter('tiny_mce_before_init', 'override_mce_options');

Remove empty tags, like <p></p>

add_filter('the_content', 'remove_empty_tags_recursive', 20, 1);
function remove_empty_tags_recursive ($str, $repto = NULL) {
$str = force_balance_tags($str);
if (!is_string ($str) || trim ($str) == '') return $str;
return preg_replace ( '/<([^<\/>]*)>([\s]*?|(?R))<\/\1>/imsU', !is_string ($repto) ? '' : $repto, $str );
}

Remove Empty <p></p> tags

add_filter('the_content', 'remove_empty_p', 20, 1);
function remove_empty_p($content){
$content = force_balance_tags($content);
return preg_replace('#<p>\s*+(<br\s*/*>)?\s*</p>#i', '', $content);
}

Remove   in <p></p> tags – front end

add_filter('the_content', 'remove_empty_nbsp', 20, 1);
function remove_empty_nbsp($string){
$content = force_balance_tags($string);
return str_replace(' ', '', $string);
}

• This reply was modified 5 years, 4 months ago by somecodeiwrote. Reason: Weird single ticks