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<!DOCTYPE html>

<head>

<title>HTML Entity Encoder/Decoder</title>

<style>

body {

display: flex;

flex-direction: column;

}

</style>

</head>

<body>

</svg>

All Tools

</a>

<h1>HTML Entity Encoder/Decoder</h1>

<p class="subtitle">Real-time bidirectional conversion</p>

</header>

<button id="clearBtn" class="secondary">Clear All</button>

</div>

</svg>

Plain Text

</span>

</div>

<textarea id="plainArea" placeholder="Type or paste text here...

Special characters like <, >, &, " will be encoded." spellcheck="false"></textarea>

</div>

</svg>

HTML Entities

</span>

</div>

<textarea id="encodedArea" placeholder="Type or paste HTML entities here...

Example: <div> & "text"" spellcheck="false"></textarea>

</div>

const plainArea = document.getElementById('plainArea');

const encodedArea = document.getElementById('encodedArea');

const clearBtn = document.getElementById('clearBtn');

const copyPlain = document.getElementById('copyPlain');

const copyEncoded = document.getElementById('copyEncoded');

const statusIndicator = document.getElementById('statusIndicator');

let updating = false;

// HTML entities map

const encodeMap = {

'&': '&',

'<': '<',

'>': '>',

'"': '"',

"'": ''',

'`': '`'

};

function encodeHTML(str) {

return str.replace(/[&<>"'`]/g, char => encodeMap[char]);

}

function decodeHTML(str) {

const textarea = document.createElement('textarea');

textarea.innerHTML = str;

return textarea.value;

}

function encodePlain() {

if (updating) return;

updating = true;

statusIndicator.className = 'status-indicator';

const text = plainArea.value;

if (!text) {

encodedArea.value = '';

updating = false;

return;

}

encodedArea.value = encodeHTML(text);

statusIndicator.className = 'status-indicator valid';

updating = false;

}

function decodePlain() {

if (updating) return;

updating = true;

statusIndicator.className = 'status-indicator';

const encoded = encodedArea.value;

if (!encoded) {

plainArea.value = '';

updating = false;

return;

}

plainArea.value = decodeHTML(encoded);

statusIndicator.className = 'status-indicator valid';

updating = false;

}

plainArea.addEventListener('input', encodePlain);

encodedArea.addEventListener('input', decodePlain);

clearBtn.addEventListener('click', () => {

plainArea.value = '';

encodedArea.value = '';

statusIndicator.className = 'status-indicator';

plainArea.focus();

});

function setupCopyButton(btn, textarea) {

btn.addEventListener('click', () => {

if (!textarea.value) return;

navigator.clipboard.writeText(textarea.value).then(() => {

const originalText = btn.textContent;

btn.textContent = 'Copied!';

btn.classList.add('copied');

setTimeout(() => {

btn.textContent = originalText;

btn.classList.remove('copied');

}, 2000);

});

}

setupCopyButton(copyPlain, plainArea);

setupCopyButton(copyEncoded, encodedArea);

</script>

</body>

</html>

Sunbelt Computer Software

PL/B Language Development and Support

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html-entities.html

html-entities.html

Sunbelt Computer Software

PL/B Language Development and Support

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