Roman Koff,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
</head>
<body>
<textarea name="" rows="50" cols="100"></textarea>
<div class="add-html-code test-mar">
<b>Пример кода:</b>
<p>1 < 2 + 3 > 4 = 5 : 6 * 7 / 8 \ 9 - 0</p>
<img class="rounded" src="samples/001_p.jpg" alt="" />
<img class="rounded-top" src="samples/002_p.jpg" alt="" />
<img class="rounded-right" src="samples/003_p.jpg" alt="" />
<img class="rounded-bottom" src="samples/004_p.jpg" alt="" />
<img class="rounded-left" src="samples/005_p.jpg" alt="" />
<img class="rounded-circle" src="samples/006_p.jpg" alt="" />
<img class="rounded-pill" src="samples/007_p.jpg" alt="" />
<img class="rounded-0" src="samples/008_p.jpg" alt="" />
</div>
<script>
var html = document.querySelector('.add-html-code.test-mar').innerHTML
var reg = new RegExp('('+'meta, img, link, br, hr, input, area, param, col, base'.split(', ').join('|')+')[^>]+', 'mig');
html = html.replace(reg, '$& /');
function htmlspecialchars_decode(string, quote_style) {
var optTemp = 0,
i = 0,
noquotes = false;
if (typeof quote_style === 'undefined') {
quote_style = 2;
}
string = string.toString()
.replace(/</g, '<')
.replace(/>/g, '>');
var OPTS = {
'ENT_NOQUOTES': 0,
'ENT_HTML_QUOTE_SINGLE': 1,
'ENT_HTML_QUOTE_DOUBLE': 2,
'ENT_COMPAT': 2,
'ENT_QUOTES': 3,
'ENT_IGNORE': 4
};
if (quote_style === 0) {
noquotes = true;
}
if (typeof quote_style !== 'number') { // Allow for a single string or an array of string flags
quote_style = [].concat(quote_style);
for (i = 0; i < quote_style.length; i++) {
// Resolve string input to bitwise e.g. 'PATHINFO_EXTENSION' becomes 4
if (OPTS[quote_style[i]] === 0) {
noquotes = true;
} else if (OPTS[quote_style[i]]) {
optTemp = optTemp | OPTS[quote_style[i]];
}
}
quote_style = optTemp;
}
if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
string = string.replace(/�*39;/g, "'"); // PHP doesn't currently escape if more than one 0, but it should
// string = string.replace(/'|�*27;/g, "'"); // This would also be useful here, but not a part of PHP
}
if (!noquotes) {
string = string.replace(/"/g, '"');
}
// Put this in last place to avoid escape being double-decoded
string = string.replace(/&/g, '&');
return string;
}
document.querySelector('textarea').value = htmlspecialchars_decode(html) ;
</script>
</body>
</html>