WordPress の　ビジュアルとHTMLのコンテンツの違い

	
_deprecated_function( 'add_filter( htmledit_pre )', '4.3.0', 'add_filter( format_for_editor )' );			
_deprecated_function( 'add_filter( richedit_pre )', '4.3.0', 'add_filter( format_for_editor )' );

メモ：
class-wp-editor.php
line:79

			if ( 'html'== wp_default_editor() ) {
				add_filter('the_editor_content', 'wp_htmledit_pre');
			} else {
				add_filter('the_editor_content', 'wp_richedit_pre');
				$switch_class= 'tmce-active';
			}

formatting.php

			if ( 'html'== wp_default_editor() ) {
				add_filter('the_editor_content', 'wp_htmledit_pre');
			} else {
				add_filter('the_editor_content', 'wp_richedit_pre');
				$switch_class= 'tmce-active';
			}