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<!DOCTYPE html>
<!--
Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
-->
<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; 2003-2021, <a class="samples" href="https://cksource.com/">CKSource</a> - Frederico
                        Knabben. All rights reserved.
                </p>
        </div>
</body>
</html>
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