functions.php

//disabling WordPress’s auto-formating filters ( get rid of p tags, br tags, etc.. )
function rm314_formatter($content) {
	$new_content = '';
	
	/* Matches the contents and the open and closing tags */
	$pattern_full = '{(\[raw\].*?\[/raw\])}is';
	
	/* Matches just the contents */
	$pattern_contents = '{\[raw\](.*?)\[/raw\]}is';
	
	/* Divide content into pieces */
	$pieces = preg_split($pattern_full, $content, -1, PREG_SPLIT_DELIM_CAPTURE);
	
	/* Loop over pieces */
	foreach ($pieces as $piece) {
		/* Look for presence of the shortcode */
		if (preg_match($pattern_contents, $piece, $matches)) {
			
			/* Append to content (no formatting) */
			$new_content .= $matches[1];
		} else {
			
			/* Format and append to content */
			$new_content .= wptexturize(wpautop($piece));		
		}
	}
	
	return $new_content;
}
 
// Remove the 2 main auto-formatters
remove_filter('the_content', 'wpautop');
remove_filter('the_content', 'wptexturize');
 
// Before displaying for viewing, apply this function
add_filter('the_content', 'rm314_formatter', 99);
add_filter('widget_text', 'rm314_formatter', 99);