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User:Tol/AutoCleanup.js

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/*

Licensing:
* Creative Commons Attribution-ShareAlike 3.0 (CC BY-SA 3.0)
*: https://creativecommons.org/licenses/by-sa/3.0/
* Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0)
*: https://creativecommons.org/licenses/by-sa/4.0/
* GNU Lesser General Public License (GNU LGPL)
*: https://www.gnu.org/copyleft/lgpl.html
* GNU Free Documentation License (GNU FDL)
*: http://www.gnu.org/licenses/fdl-1.3.html

Attribution:
* [[User:Tol]] [https://en.wikipedia.org/wiki/User:Tol]

*/

// <syntaxhighlight lang="js">

$(function() {
	
	function clean_wikitext(text) {
		const replacements = [
			[/‘|’/g, '\''], // Replace curly single quotes with straight ones
			[/“|”/g, '"'], // Replace curly double quotes with straight ones
			[/ +\n/g, '\n'], // Remove lines' trailing spaces
			[/^(=+) *(.*?) *\1$/gm, '$1 $2 $1'], // Standardise spacing inside headers
			[/\n+^((=+) .*? \2)$/gm, '\n\n$1'], // Standardise spacing before headers
			[/^((=+) .*? \2)$\n+/gm, '$1\n\n'], // Standardise spacing after headers
			[/\n{3,}/g, '\n\n'], // Replace three or more newlines with two newlines
   			[/(?<!^|\||=) {2,}(?! *[\|=])/gm, ' '] // Replace two or more spaces (not preceded or followed by a pipe or equals sign nor at the beginning of a line) with one space
		];
		for (const replacement of replacements) {
			text = text.replace(...replacement);
		}
		return text;
	}
	
	function process_summary(summary) {
		const ac_summary = 'cleanup (via [[User:Tol/AutoCleanup|script]])';
		if (summary) {
			if (/^\/\*.*?\*\/ $/.test(summary)) { // auto summary
				return summary + ac_summary;
			} else {
				return summary + '; ' + ac_summary;
			}
		} else {
			return ac_summary;
		}
	}
	
	function main() {
		mw.notify(
			'Processing...',
			{
				tag: 'tol-autocleanup',
				title: 'AutoCleanup',
				type: 'info',
				autoHide: false
			}
		);
		let text_box = $('#wpTextbox1');
		let old_text = text_box.textSelection('getContents');
		let new_text = clean_wikitext(old_text);
		if (old_text != new_text) {
			text_box.textSelection('setContents', new_text);
			let summary_box = $('#wpSummary');
			summary_box.val(
				process_summary(summary_box.val())
			);
			mw.notify(
				'Done',
				{
					tag: 'tol-autocleanup',
					title: 'AutoCleanup',
					type: 'success'
				}
			);
		} else {
			mw.notify(
				'No changes made',
				{
					tag: 'tol-autocleanup',
					title: 'AutoCleanup',
					type: 'info'
				}
			);
		}
	}
	
	function add_button() {
		try {
			if ($('editform').length) {
				mw.loader.using(['oojs-ui', 'oojs-ui-widgets'], function() {
					let button = new OO.ui.ButtonWidget({label: 'AutoCleanup'});
					button.on('click', main);
					$('.editButtons').append(button.$element);
				});
			}
		} catch(error) {
			alert(error);
		}
	}
	
	//$(add_button);
	$(main);
	
});

// </syntaxhighlight>