Markdown Tester

Kod po stronie przeglądarki

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/codemirror.min.css">
<link rel="stylesheet" href="http://www.dariuszrorat.ugu.pl/assets/css/codemirror/theme/universal.css">
<link rel="stylesheet" href="http://www.dariuszrorat.ugu.pl/assets/css/codemirror/themes.css">
<link type="text/css" href="http://www.dariuszrorat.ugu.pl/assets/css/bootstrap/wcag-outline.min.css" rel="stylesheet">
<div id="app">
<div class="card shadow-sm">
    <div class="card-header">
        <h2 class="h4 mb-0">Konwerter Markdown → HTML</h2>
    </div>
    <div class="card-body">
        <!-- USTAWIENIA -->
        <div class="row g-4 align-items-end mb-4">
            <div class="col-md-6">
                <label for="engine" class="form-label fw-semibold">
                Silnik renderowania
                </label>
                <select id="engine"
                    class="form-select"
                    data-bind="value: engine">
                    <option value="parsedown">Wewnętrzny (Parsedown Extended)</option>
                    <option value="commonmark">Zewnętrzny (CommonMark.js)</option>
                    <option value="marked">Zewnętrzny (Marked.js)</option>
                </select>
            </div>
            <div class="col-md-6 text-md-end">
                <button class="btn btn-outline-secondary me-2"
                    data-bind="click: clearText">
                Wyczyść
                </button>
                <button class="btn btn-outline-info"
                    data-bind="click: loadExample">
                Wczytaj przykład
                </button>
            </div>
        </div>
        <!-- EDYTOR + PODGLĄD -->
        <div class="row g-4">
            <!-- MARKDOWN -->
            <div class="col-lg-6">
                <label for="markdown" class="form-label fw-semibold">
                Tekst Markdown
                </label>
                <textarea id="markdown"
                    class="form-control"
                    placeholder="Wpisz tutaj Markdown..."
                    ></textarea>
            </div>
            <!-- PODGLĄD -->
            <div class="col-lg-6">
                <!-- Spinner -->
                <div class="text-center my-3"
                    data-bind="visible: loading">
                    <div class="spinner-border text-primary"></div>
                    <div class="small mt-2 text-muted">
                        Renderowanie...
                    </div>
                </div>

                <div class="mb-4">
                    <ul class="nav nav-underline mt-3">
                        <li class="nav-item" role="presentation">
                            <button class="nav-link text-body active" id="tab-preview-tab" data-bs-toggle="tab" data-bs-target="#tab-preview" type="button" role="tab">Podgląd</button>
                        </li>
                        <li class="nav-item" role="presentation">
                            <button class="nav-link text-body" id="tab-htmlview-tab" data-bs-toggle="tab" data-bs-target="#tab-htmlview" type="button" role="tab">Wygenerowany HTML</button>
                        </li>
                    </ul>
                    <div class="tab-content">
                        <div id="tab-preview" class="tab-pane fade show active" role="tabpanel">
                            <div class="overflow-auto py-3" style="max-height: 600px;" data-bind="html: result"></div>
                        </div>
                        <div id="tab-htmlview" class="tab-pane fade" role="tabpanel">
                            <pre class="overflow-auto" style="max-height: 600px;">
                                <code id="html-preview" class="language-html" data-bind="text: result"></code>
                            </pre>
                        </div>
                    </div>
                </div>
            </div>
            <!-- PRZYCISK KONWERSJI -->
            <div class="text-center mt-4">
                <button class="btn btn-primary btn-lg px-5"
                    data-bind="click: convert, disable: loading">
                Konwertuj na HTML
                </button>
            </div>
        </div>
    </div>
</div>
<script src="https://cdn.jsdelivr.net/npm/commonmark/dist/commonmark.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/codemirror.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/clike/clike.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/css/css.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/javascript/javascript.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/xml/xml.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/htmlmixed/htmlmixed.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/meta.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/matchtags.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/fold/xml-fold.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/closetag.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/markdown/markdown.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/matchbrackets.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/closebrackets.min.js"></script>
<script>
function escapeHtml(s) {
    if (!s) return '';
    return String(s).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;').replace(/'/g, '&#39;');
}

document.addEventListener('DOMContentLoaded', function() {
    const myTextarea = document.getElementById('markdown');
    const editor = CodeMirror.fromTextArea(myTextarea, {
        lineNumbers: true,
        matchBrackets: true,
        autoCloseTags: true,
        autoCloseBrackets: true,
        mode: "text/markdown",
        indentUnit: 4,
        indentWithTabs: false,
        enterMode: "keep",
        tabMode: "shift",
        extraKeys: {
            Tab: false,
            "Shift-Tab": false
        }
    });
    editor.setSize(null, 620);
    editor.getWrapperElement().style["font-size"] = "14px";

    editor.refresh();

    //Knockout.js App ViewModel
    const ViewModel = function() {
        const self = this;
        self.markdown = ko.observable('');
        self.engine = ko.observable('parsedown');
        self.result = ko.observable('');
        self.loading = ko.observable(false);
        self.success = ko.observable(false);
        self.reader = new commonmark.Parser();
        self.writer = new commonmark.HtmlRenderer();

        self.loadExample = function() {
            const example = `# Przykładowy dokument

To jest **przykładowy tekst Markdown**.

## Formatowanie

- **Pogrubienie**
- *Kursywa*
- ~~Przekreślenie~~

## Lista numerowana

1. Pierwszy element
2. Drugi element
3. Trzeci element

## Cytat

> To jest przykładowy cytat Markdown.

## Kod

\`\`\`javascript
function hello() {
    console.log("Hello world!");
}
\`\`\`

## Link

[OpenAI](https://openai.com)

---

Miłego testowania 🚀
`;

            self.markdown(example);
            editor.setValue(example);

            // Opcjonalnie: automatyczne renderowanie po załadowaniu
            if (typeof self.convert === "function") {
                self.convert();
            }
        };
        self.clearText = function() {
            self.markdown('');
            self.result('');
            editor.setValue('');
            self.success(false);
        };
        self.updateHighlight = function() {
            const el = document.getElementById('html-preview');
            if (el) {
                if (el.hasAttribute('data-highlighted'))
                    el.removeAttribute('data-highlighted');
                if (el.hasAttribute('data-highlighter'))
                    el.removeAttribute('data-highlighter');
                if (el.classList.contains('hljs'))
                    el.classList.remove(...Array.from(el.classList).filter(cls => cls.startsWith('hljs')));
                el.innerHTML = escapeHtml(el.textContent);
                hljs.highlightElement(el);
            }
        }
        self.convert = function() {
            const markdown = self.markdown();
            self.result('');
            const engine = self.engine();
            self.loading(true);

            if (engine == 'commonmark') {
                const parsed = self.reader.parse(markdown);
                const html = self.writer.render(parsed);
                self.result(html);
                self.success(true);
                self.loading(false);
                self.updateHighlight();
                return;
            }

            if (engine == 'marked') {
                self.result(marked.parse(markdown));
                self.success(true);
                self.loading(false);
                self.updateHighlight();
                return;
            }

            const params = {
                markdown: markdown,
                token: '92331cfe7a9e5c2ec1b3f69c7171a5eef2e94a7d'
            };

            self.success(false);
            axios.post(urlSite('public/ajax/app/exec/3'), params, {
                    headers: {
                        'Content-Type': 'application/x-www-form-urlencoded'
                    }
                })
                .then(function(response) {
                    self.result(response.data.data);
                    self.success(true);
                    self.loading(false);
                    self.updateHighlight();
                }).catch(function(error) {
                    self.success(false);
                    self.loading(false);
                    BootstrapToast.show({
                        title: 'Błąd',
                        message: error.response.data.message,
                        when: 'teraz',
                        type: 'danger',
                        icon: 'bi-x-circle-fill'
                    });
                });
        };
    };
    const vm = new ViewModel();
    ko.applyBindings(vm, document.getElementById('app'));
    //CodeMirror for textarea
    editor.on('change', (args) => {
        vm.markdown(editor.getValue())
    });

    //WCAG missing form label fix
    codemirrorTextareaIdFix("markdown");
});
</script>

Kod po stronie serwera

$markdown = Input::post('markdown', '');
$html = Markdown::factory($markdown)
    ->render();

$output = ['data' => $html];

$response = Response::factory()
    ->headers('Content-Type', 'application/json')
    ->status(200)
    ->body(json_encode($output));

echo $response->send_headers()->body();

Licencja

## BSD-3-Clause License Agreement
BSD-3-Clause
Сopyright (c) 2026 Dariusz Rorat

All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.