marked.use({
	extensions: [
		{
			name: 'mention',
			level: 'inline',
			start: function(src){
				const match = src.match(/@[a-zA-Z0-9_\-]+/);
				return match != null ? match.index : -1;
			},
			tokenizer: function(src) {
				const rule = /^@[a-zA-Z0-9_\-]+/;
				const match = rule.exec(src);
				if(match){
					return {
						type: 'mention',
						raw: match[0],
						text: match[0].trim().slice(1),
						tokens: []
					};
				}
			},
			renderer(token) {
				const u = token.raw;
				return `<a href="/${u}"><img loading="lazy" src="/${u}/pic" class="pp20"> ${u}</a>`;
			}
		},
		{
			name: 'group_mention',
			level: 'inline',
			start: function(src){
				const match = src.match(/![a-zA-Z0-9_\-]+/);
				return match != null ? match.index : -1;
			},
			tokenizer: function(src) {
				const rule = /^![a-zA-Z0-9_\-]+/;
				const match = rule.exec(src);
				if(match){
					return {
						type: 'group_mention',
						raw: match[0],
						text: match[0].trim().slice(1),
						tokens: []
					};
				}
			},
			renderer(token) {
				const g = token.raw;
				return `<a href="/!${g}">!${g}</a>`;
			}
		},
	]
});

const reDisableBeforeUnload = /^\/submit|^\/h\/[a-zA-Z0-9_\-]{3,20}\/submit/;

const image_regex_extensions = document.getElementById('IMAGE_FORMATS').value.replaceAll(',', '|')
const regex_pattern = String.raw`(^|\s)(https:\/\/[\w\-.#&/=\?@%;+,:]{5,250}(\.|\?format=)(` + image_regex_extensions + String.raw`)((\?|&)[\w\-.#&/=\?@%;+,:]*)?)($|\s)`
const compiled_regex = new RegExp(regex_pattern, "g");

function markdown(t) {
	let input = t.value;

	if (!reDisableBeforeUnload.test(location.pathname))
	{
		if (!window.onbeforeunload)
		{
			window.onbeforeunload = function (e) {
				e = e || window.event;
				if (e) {
					e.returnValue = 'Any string';
				}
				return 'Any string';
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	if (!input.includes('```') && !input.includes('<pre>'))
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	input = input.replace(/\|\|(.*?)\|\|/g, '<spoiler>$1</spoiler>')
	input = input.replace(/(\n|^)>([^ >][^\n]*)/g, '$1<g>\>$2</g>')

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			if (old.includes('marseyrandom')) continue
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			const emojiClass = old.indexOf('#') == -1 ? 'emoji' : 'emoji-lg';
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			} else {
				input = input.replace(old, `<img loading="lazy" class="${emojiClass} ${mirroredClass}" src="/e/${emoji}.webp">`);
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			const option2 = option.replace(/&&/g, '').replace(/\n/g, '')
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	input = input.replace(compiled_regex, '$1![]($2)')

	input = marked(input)

	const preview = document.getElementById(t.dataset.preview)

	preview.innerHTML = input

	const expandable = preview.querySelectorAll('img[alt]');
	for (const element of expandable) {
		element.onclick = () => {expandImage()};
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}

function charLimit(form, text) {

	const input = document.getElementById(form);

	text = document.getElementById(text);

	const length = input.value.length;

	const maxLength = input.getAttribute("maxlength");

	if (length >= maxLength) {
		text.style.color = "#E53E3E";
	}
	else if (length >= maxLength * .72){
		text.style.color = "#FFC107";
	}
	else {
		text.style.color = "#A0AEC0";
	}

	text.innerText = length + ' / ' + maxLength;
}

function remove_dialog() {
	window.onbeforeunload = null;
}