WP Plugin: Don't replace 'Wordpress' with 'WordPress'. Keep ' and " as they are.

hands-off-from-content.php

<?php
/**
 * Plugin Name: dna Hands off from content
 * Description: Don't replace 'Wordpress' with 'WordPress'. Keep ' and " as they are.
 * Plugin URI:  https://gist.github.com/3464269
 * Version:     2012.08.25
 * Author:      David Naber
 * Author URI:  http://dnaber.de/
 * License:     MIT
 * License URI: http://www.opensource.org/licenses/mit-license.php
 */

namespace dna\hands_of_content;

add_action( 'plugins_loaded', __NAMESPACE__ . '\no_cap_P' );
add_action( 'plugins_loaded', __NAMESPACE__ . '\untexturize' );


/**
 * remove capital_P_dangit from the content
 *
 * @wp-hook plugins_loaded
 * @return  void
 */
function no_cap_P() {

	#global $wp_cockneyreplace;

	foreach ( array( 'the_content', 'the_title' ) as $filter )
		remove_filter( $filter, 'capital_P_dangit', 11 );

	remove_filter( 'comments_text', 'capital_P_dangit', 31 );
}

/**
 * replace ' and " with their entities to prevent changing them into
 * real quotation-marks
 *
 * @wp-hook plugins_loaded
 * @return  void
 */
function untexturize() {
	global $wp_cockneyreplace;

	$wp_cockneyreplace[ "'" ] = '&#x27;';
	$wp_cockneyreplace[ '"' ] = '&#x22;';
}