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<!--
Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
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<html lang="en">
<head>
	<meta charset="utf-8">
	<title>HTML Compliant Output &mdash; CKEditor Sample</title>
	<script src="../../../ckeditor.js"></script>
	<script src="../../../samples/old/sample.js"></script>
	<link href="../../../samples/old/sample.css" rel="stylesheet">
	<meta name="ckeditor-sample-required-plugins" content="sourcearea">
	<meta name="ckeditor-sample-name" content="Output HTML">
	<meta name="ckeditor-sample-group" content="Advanced Samples">
	<meta name="ckeditor-sample-description" content="Configuring CKEditor to produce legacy HTML 4 code.">
	<meta name="description" content="Try the latest sample of CKEditor 4 and learn more about customizing your WYSIWYG editor with endless possibilities.">
</head>
<body>
	<h1 class="samples">
		<a href="../../../samples/old/index.html">CKEditor Samples</a> &raquo; Producing HTML Compliant Output
	</h1>
	<div class="warning deprecated">
		This sample is not maintained anymore. Check out the <a href="https://ckeditor.com/docs/ckeditor4/latest/examples/index.html">brand new samples in CKEditor Examples</a>.
	</div>
	<div class="description">
		<p>
			This sample shows how to configure CKEditor to output valid
			<a class="samples" href="http://www.w3.org/TR/html401/">HTML 4.01</a> code.
			Traditional HTML elements like <code>&lt;b&gt;</code>,
			<code>&lt;i&gt;</code>, and <code>&lt;font&gt;</code> are used in place of
			<code>&lt;strong&gt;</code>, <code>&lt;em&gt;</code>, and CSS styles.
		</p>
		<p>
			To add a CKEditor instance outputting legacy HTML 4.01 code, load the editor using a standard
			JavaScript call, and define CKEditor features to use the HTML compliant elements and attributes.
		</p>
		<p>
			A snippet of the configuration code can be seen below; check the source of this page for
			full definition:
		</p>
<pre class="samples">
CKEDITOR.replace( '<em>textarea_id</em>', {
	coreStyles_bold: { element: 'b' },
	coreStyles_italic: { element: 'i' },

	fontSize_style: {
		element: 'font',
		attributes: { 'size': '#(size)' }
	}

	...
});</pre>
	</div>
	<form action="../../../samples/sample_posteddata.php" method="post">
		<p>
			<label for="editor1">
				Editor 1:
			</label>
			<textarea cols="80" id="editor1" name="editor1" rows="10">&lt;p&gt;This is some &lt;b&gt;sample text&lt;/b&gt;. You are using &lt;a href="https://ckeditor.com/"&gt;CKEditor&lt;/a&gt;.&lt;/p&gt;</textarea>
			<script>

				CKEDITOR.replace( 'editor1', {
					/*
					 * Ensure that htmlwriter plugin, which is required for this sample, is loaded.
					 */
					extraPlugins: 'htmlwriter',

					/*
					 * Style sheet for the contents
					 */
					contentsCss: 'body {color:#000; background-color#:FFF;}',

					/*
					 * Simple HTML5 doctype
					 */
					docType: '<!DOCTYPE HTML>',

					/*
					 * Allowed content rules which beside limiting allowed HTML
					 * will also take care of transforming styles to attributes
					 * (currently only for img - see transformation rules defined below).
					 *
					 * Read more: https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html
					 */
					allowedContent:
						'h1 h2 h3 p pre[align]; ' +
						'blockquote code kbd samp var del ins cite q b i u strike ul ol li hr table tbody tr td th caption; ' +
						'img[!src,alt,align,width,height]; font[!face]; font[!family]; font[!color]; font[!size]; font{!background-color}; a[!href]; a[!name]',

					/*
					 * Core styles.
					 */
					coreStyles_bold: { element: 'b' },
					coreStyles_italic: { element: 'i' },
					coreStyles_underline: { element: 'u' },
					coreStyles_strike: { element: 'strike' },

					/*
					 * Font face.
					 */

					// Define the way font elements will be applied to the document.
					// The "font" element will be used.
					font_style: {
						element: 'font',
						attributes: { 'face': '#(family)' }
					},

					/*
					 * Font sizes.
					 */
					fontSize_sizes: 'xx-small/1;x-small/2;small/3;medium/4;large/5;x-large/6;xx-large/7',
					fontSize_style: {
						element: 'font',
						attributes: { 'size': '#(size)' }
					},

					/*
					 * Font colors.
					 */

					colorButton_foreStyle: {
						element: 'font',
						attributes: { 'color': '#(color)' }
					},

					colorButton_backStyle: {
						element: 'font',
						styles: { 'background-color': '#(color)' }
					},

					/*
					 * Styles combo.
					 */
					stylesSet: [
						{ name: 'Computer Code', element: 'code' },
						{ name: 'Keyboard Phrase', element: 'kbd' },
						{ name: 'Sample Text', element: 'samp' },
						{ name: 'Variable', element: 'var' },
						{ name: 'Deleted Text', element: 'del' },
						{ name: 'Inserted Text', element: 'ins' },
						{ name: 'Cited Work', element: 'cite' },
						{ name: 'Inline Quotation', element: 'q' }
					],

					on: {
						pluginsLoaded: configureTransformations,
						loaded: configureHtmlWriter
					}
				});

				/*
				 * Add missing content transformations.
				 */
				function configureTransformations( evt ) {
					var editor = evt.editor;

					editor.dataProcessor.htmlFilter.addRules( {
						attributes: {
							style: function( value, element ) {
								// Return #RGB for background and border colors
								return CKEDITOR.tools.convertRgbToHex( value );
							}
						}
					} );

					// Default automatic content transformations do not yet take care of
					// align attributes on blocks, so we need to add our own transformation rules.
					function alignToAttribute( element ) {
						if ( element.styles[ 'text-align' ] ) {
							element.attributes.align = element.styles[ 'text-align' ];
							delete element.styles[ 'text-align' ];
						}
					}
					editor.filter.addTransformations( [
						[ { element: 'p',	right: alignToAttribute } ],
						[ { element: 'h1',	right: alignToAttribute } ],
						[ { element: 'h2',	right: alignToAttribute } ],
						[ { element: 'h3',	right: alignToAttribute } ],
						[ { element: 'pre',	right: alignToAttribute } ]
					] );
				}

				/*
				 * Adjust the behavior of htmlWriter to make it output HTML like FCKeditor.
				 */
				function configureHtmlWriter( evt ) {
					var editor = evt.editor,
						dataProcessor = editor.dataProcessor;

					// Out self closing tags the HTML4 way, like <br>.
					dataProcessor.writer.selfClosingEnd = '>';

					// Make output formatting behave similar to FCKeditor.
					var dtd = CKEDITOR.dtd;
					for ( var e in CKEDITOR.tools.extend( {}, dtd.$nonBodyContent, dtd.$block, dtd.$listItem, dtd.$tableContent ) ) {
						dataProcessor.writer.setRules( e, {
							indent: true,
							breakBeforeOpen: true,
							breakAfterOpen: false,
							breakBeforeClose: !dtd[ e ][ '#' ],
							breakAfterClose: true
						});
					}
				}

			</script>
		</p>
		<p>
			<input type="submit" value="Submit">
		</p>
	</form>
	<div id="footer">
		<hr>
		<p>
			CKEditor - The text editor for the Internet - <a class="samples" href="https://ckeditor.com/">https://ckeditor.com</a>
		</p>
		<p id="copy">
			Copyright &copy; 2003-2023, <a class="samples" href="https://cksource.com/">CKSource</a> Holding sp. z o.o. All rights reserved.
		</p>
	</div>
</body>
</html>