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User:MJL/Archer.js

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// This is a modified version of [[User:Sam Sailor/Scripts/Sagittarius+.js]] ([[Special:Diff/899155791]])
// Such script itself was a modified version of [[User:Kephir/gadgets/sagittarius.js]] ([[Special:PermaLink/785248045]])
// Some code was also stolen from [[User:Wugapodes/Capricorn.js]] ([[Special:Permalink/1043412413]])
// Docs: [[User:MJL/Archer]]
// <nowiki>

/*jshint undef:true, latedef:true, shadow:true, loopfunc:true, scripturl:true, undef:true */
/*globals jQuery, mw, importStylesheet */
mw.loader.using(['jquery.suggestions', 'mediawiki.api', 'mediawiki.Title', 'mediawiki.action.view.redirectPage'], function () { // <nowiki>
'use strict';

if (mw.config.get('wgNamespaceNumber') < 0)
	return;

function normaliseAnchor(anchor) {
	function encodeCodePoint(c) {
		if (c === 0x20)
			return '_';
		if (c < 0x80) {
			return '.' + c.toString(16).toUpperCase();
		} else if (c < 0x800) {
			return '.' + (0xc0 |  (c >>>  6)        ).toString(16).toUpperCase() +
				'.' + (0x80 | ( c         & 0x3f)).toString(16).toUpperCase();
		} else if (c < 0x10000) {
			return '.' + (0xe0 |  (c >>> 12)        ).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>>  6) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ( c         & 0x3f)).toString(16).toUpperCase();
		} else if (c < 0x200000) {
			return '.' + (0xf0 |  (c >>> 18)        ).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>> 12) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>>  6) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ( c         & 0x3f)).toString(16).toUpperCase();
		} else if (c < 0x4000000) {
			return '.' + (0xf8 |  (c >>> 24)        ).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>> 18) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>> 12) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>>  6) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ( c         & 0x3f)).toString(16).toUpperCase();
		} else if (c < 0x80000000) {
			return '.' + (0xfc |  (c >>> 30)        ).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>> 24) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>> 18) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>> 12) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ((c >>>  6) & 0x3f)).toString(16).toUpperCase() +
				'.' + (0x80 | ( c         & 0x3f)).toString(16).toUpperCase();
		}
	}

	// "." is not escaped!
	return anchor.replace(/[^0-9A-Za-z_:\.]/g, function (m) { /* [\ud800-\udbff][\udc00-\dfff]| */
		if (m.length === 2) { // surrogate pair
			return encodeCodePoint((m.charCodeAt(0) & 0x3ff) << 10 | m.charCodeAt(1) & 0x3ff);
		} else {
			return encodeCodePoint(m.charCodeAt(0));
		}
	});
}

function normaliseTitle(title) {
	try {
		var t = new mw.Title(title);
		return t.getPrefixedText();
	} catch (e) {
		return null;
	}
}

function el(tag, child, attr, events) {
	var node = document.createElement(tag);
 
	if (child) {
		if ((typeof child === 'string') || (typeof child.length !== 'number'))
			child = [child];
		for (var i = 0; i < child.length; ++i) {
			var ch = child[i];
			if ((ch === void(null)) || (ch === null))
				continue;
			else if (typeof ch !== 'object')
				ch = document.createTextNode(String(ch));
			node.appendChild(ch);
		}
	}

	if (attr) for (var key in attr) {
		if ((attr[key] === void(0)) || (attr[key] === null))
			continue;
		node.setAttribute(key, String(attr[key]));
	}

	if (events) for (var key in events) {
		var handler = events[key];
		if ((key === 'input') && (window.oninput === void(0))) {
			key = 'change';
		}
		node.addEventListener(key, handler, false);
	}

	return node;
}

function link(child, href, attr, ev) {
	attr = attr || {};
	ev = ev || {};
	if (typeof attr === 'string') {
		attr = { "title": attr };
	}
	if (typeof href === 'string')
		attr.href = href;
	else {
		attr.href = 'javascript:void(null);';
		ev.click = href;
	}
	return el('a', child, attr, ev);
}

var templateGroups = {
	"fromabbreviationcapitalisationandgrammar": "From – abbreviation, capitalisation, and grammar",
	"frompartsofspeach": "From parts of speach",
	"fromspelling": "From – spelling",
	"fromalternativenamesgeneral": "From alternative names, general",
	"fromalternativenamesgeography": "From alternative names, geography",
	"fromalternativenamespeople": "From alternative names, people",
	"fromalternativenamesscientific": "From alternative names, scientific",
	"fromalternativenamestechnical": "From alternative names, technical",
	"frompostalinfo": "From postal information",
	"fromcomics": "From comics",
	"fromdisambiguations": "From disambiguations",
	"fromfiction": "From fiction",
	"frommiddleearth": "From Middle Earth",
	"fromisocodes": "From ISO codes",
	"fromrelatedinfo": "From related info",
	"frommusic": "From music",
	"fromsocialmedia": "From social media",
	"fromrelatedpeople": "From related people",
	"fromtransportation": "From – transportation",
	"frommergersduplicatesandmoves": "From mergers, duplicates, and moves",
	"fromnavigation": "From – navigation",
	"togrammarpunctuationandspelling": "To – grammar, punctuation, and spelling",
	"toalternativenames": "To alternative names",
	"tonavigationanddisambiguation": "To – navigation and disambiguation",
	"tonamespaces": "To namespaces",
	"tocomics": "To comics",
	"tomiddleearth": "To Middle Earth",
	"totime": "To time articles",
	"totemplates": "To Wikipedia templates",
	"tomiscellaneous": "To miscellaneous",
	"misc": "Miscellaneous"
};

function mainCallback(aliasJSON, templateJSON) {
	var templateAliases = aliasJSON;
	var redirectTemplates = templateJSON;
	//console.log(templateAliases);
	//console.log(redirectTemplates);
	// <nowiki>
	'use strict';
	
	importStylesheet('User:MJL/Archer/Kephir.css');
	
	var wgNamespaceIds = mw.config.get('wgNamespaceIds');
	var api = new mw.Api();
	var contentText = document.getElementById('mw-content-text');
	var firstHeading = document.getElementById('firstHeading');
	var redirMsg = contentText.getElementsByClassName('redirectMsg')[0];
	var uiWrapper = el('div');
	var edittoken = null;
	
	function MarkupBlob(markup) {
		if (!markup) {
			this.target = '';
			this.rcatt = {};
			this.tail = '';
			} else
		this.parse(markup);
	}

	MarkupBlob.prototype.parse = function (markup) {
		var rdrx = /^#REDIRECT\s*\[\[\s*([^\|{}[\]]+?)\s*]]\s*/i;
		var tprx = /^\s*{{([A-Za-z ]+)((?:\|(?:[^|{}]*|{{[^|}]*}})+)*)}}\s*/i;
		var m;
	
		if (!(m = rdrx.exec(markup.trim())))
			throw new Error('Not a redirect');
		markup = markup.substr(m[0].length);
		this.target = m[1];
	
		this.rcatt = {};
		out: while ((m = tprx.exec(markup))) {
			var alias = normaliseTitle(m[1]);
			while (templateAliases[alias])
				alias = templateAliases[alias]; // hopefully there are no loops.
			
			if (alias === "This is a redirect") {
				var params = m[2].split('|');
				for (var j = 0; j < params.length; ++j) {
					if (!params[j])
						continue;
					if (params[j].indexOf('=') !== -1)
						break out;
					alias = normaliseTitle("R " + params[j]);
					while (templateAliases[alias])
						alias = templateAliases[alias]; // hopefully there are still no loops.
					if (alias in redirectTemplates)
						this.rcatt[alias] = true;
					else
						break out;
				}
			} else if (alias === "Redirect category shell") {
				var mm, rr = /{{(.*?)}}/g;
				while (mm = rr.exec(m[2])) {
					alias = normaliseTitle(mm[1]);
					while (templateAliases[alias])
						alias = templateAliases[alias];
					if (alias in redirectTemplates)
						this.rcatt[alias] = true;
				}
			} else if (alias in redirectTemplates) {
				if (m[2]) // TODO
					break;
				this.rcatt[alias] = true;
			} else {
				break;	
			}
			markup = markup.substr(m[0].length);
		}
	
		this.tail = markup;
	};
	
	MarkupBlob.prototype.toString = function () {
		var markup = '#REDIRECT [[' + this.target + ']]';
		var tail = '';
		var wrapped = [];
		for (var key in this.rcatt) {
			if (this.rcatt[key])
				if ((wrapped.length < 6) && /^R\s+/.test(key))
					wrapped.push('{{' + key + '}}\n');
				else
					tail += '{{' + key + '}}\n';
			
		}
		if (wrapped.length)
			markup += "\n{{Redirect category shell|\n" + wrapped.join("") + "}}\n";
		markup += tail + '\n';
		markup += this.tail;
		return markup;
	};
	
	function buildTagList(rcatt) {
		function makeCheckBox(key) {
			return el('label', [
				el('input', null, {
					type: "checkbox",
					checked: (key in rcatt) ? "checked" : null,
				}, {
					change: function (ev) {
						rcatt[key] = this.checked;
					}
				}),
				' ',
				redirectTemplates[key].label
			], {
				"title": redirectTemplates[key].tooltip
			});
		}
		var list = el('dl', null, { "class": "tag-list" });
		var group = {};
		for (var key in templateGroups) {
			list.appendChild(el('dt', templateGroups[key]));
			list.appendChild(el('dd', group[key] = el('ul')));
		}
		for (var key in redirectTemplates) {
			var label = makeCheckBox(key);
			group[redirectTemplates[key].group].appendChild(el('li', label));
		}
		return list;
	}
	
	function buildEditingUI(mblob, saveCallback) {
		var statusbar;
		var needsCheck = true;
		var doSave;
		var uiLink, uiTarget;
		mblob = mblob || new MarkupBlob();
		
		function setStatus(status) {
			while (statusbar.firstChild)
				statusbar.removeChild(statusbar.firstChild);
			if (status) {
				if (typeof status === 'string')
					statusbar.appendChild(document.createTextNode(status));
				else {
					for (var j = 0; j < status.length; ++j) {
						if (typeof status[j] === 'string')
							statusbar.appendChild(document.createTextNode(status[j]));
						else
							statusbar.appendChild(status[j]);
					}
				}
			}
		}
		
		function inputChanged(ev) {
			/*jshint validthis:true */
			try {
				mblob.target = this.value;
				var t = new mw.Title(this.value);
				var frag = t.getFragment() ? '#' + normaliseAnchor(t.getFragment()) : '';
				uiLink.href = mw.util.getUrl(t.getPrefixedDb(), { redirect: "no" }) + frag;
				setStatus();
			} catch (e) {
				setStatus('Invalid title.');
				if(uiLink) uiLink.href = 'javascript:void(0);';
			}
			needsCheck = true;
		}
	
		var uiStatusLine;
		var ui = el('form', [
			el('div', [
				el('ul', [
					el('li', [
						uiTarget = el('input', null, {
							'type': 'text',
							'class': 'redirectText',
							'value': mblob.target
						}, {
							'input': inputChanged,
							'change': inputChanged,
							'blur': function (ev) { // i would not have to write this, if it were not for jQuery. seriously.
								if (mblob.target === this.value)
									return;
								inputChanged.call(this, ev);
							}
						})
					])
				], { 'class': 'redirectText' })
			], { 'class': 'redirectMsg' }),
			buildTagList(mblob.rcatt),
			uiStatusLine = el('p', [
				statusbar = el('span', [], {
					'class': 'status-line'
				}),
				el('span', [
					link(["Statistics for this page"], 'https://tools.wmflabs.org/pageviews?project=en.wikipedia.org&pages=' + encodeURIComponent(mw.config.get('wgPageName'))),
					' • ',
					link(["WP:TMR"], mw.util.getUrl("Wikipedia:Template messages/Redirect pages")),
					' • ',
					link(["About Archer"], mw.util.getUrl("User:MJL/Archer"))
				], {
					'style': 'float: right;'
				})
			])
		], {
			'action': 'javascript:void(0)',
			'class': 'kephir-sagittarius-editor'
		}, {
			'submit': function (ev) {
				ev.preventDefault();
				ui.doCheck(saveCallback);
			}
		});
		ui.statusLine = uiStatusLine;
	
		var sectCache = {};
		var $uiTarget = jQuery(uiTarget);
		$uiTarget.suggestions({
			submitOnClick: false,
			delay: 500,
			fetch: function (query) {
				$uiTarget.suggestions('suggestions', []);
				if (query.indexOf('#') !== -1) {
					var title = query.substr(0, query.indexOf('#'));
					var sect = query.substr(query.indexOf('#') + 1);
	
					if (sectCache[title]) {
						var normSect = normaliseAnchor(sect);
						$uiTarget.suggestions('suggestions',
							sectCache[title].filter(function (item) {
								var norm = normaliseAnchor(item.anchor);
								return norm.substr(0, normSect.length) === normSect;
							})
						);
						return;	
					}
	
					api.get({
						action: 'parse',
						page: title,
						prop: 'sections|properties',
						redirects: '1'
					}).then(function (result) {
						if (result.parse.redirects && result.parse.redirects.length) {
							// XXX
							return;
						}
						
						var disambig = false; // XXX
	
						var normSect = normaliseAnchor(sect);
						sectCache[title] = result.parse.sections.map(function (item) {
							return {
								anchor: item.anchor,
								title: title + '#' + decodeURIComponent(item.anchor.replace(/_/g, ' ').replace(/\.([0-9A-Fa-f][0-9A-Fa-f])/g, '%')), // XXX: hack
								disambig: disambig,
								toString: function () {
									return this.title;
								}
							};
						});
	
						$uiTarget.suggestions('suggestions',
							sectCache[title].filter(function (item) {
								var norm = normaliseAnchor(item.anchor);
								return norm.substr(0, normSect.length) === normSect;
							})
						);
					});
					return;
				}
	
				api.get({
					action: 'query',
					generator: 'allpages',
					gapprefix: query,
					gaplimit: 16,
					prop: 'info|pageprops',
				}).then(function (result) {
					var pglist = [];
					for (var pgid in result.query.pages) {
						var page = result.query.pages[pgid];
						pglist.push({
							title: page.title,
							pageid: page.pageid,
							disambig: page.pageprops && ('disambiguation' in page.pageprops),
							redirect: 'redirect' in page,
							toString: function () {
								return this.title;
							}
						});
					}
					$uiTarget.suggestions('suggestions', pglist);
				});
			},
			result: {
				render: function (item, content) {
					var elm = this[0];
					elm.appendChild(el('span', [item.title], {
						style: item.redirect ? 'font-style: italic' : ''
					}));
					if (item.disambig)
						elm.appendChild(el('small', [' (disambiguation page)']));
					if (item.redirect)
						elm.appendChild(el('small', [' (redirect)']));
				},
				
				select: function ($textbox) {
					var item = this.data('text');
					var textbox = $textbox[0];
	
					textbox.value = item.title;
					if (item.redirect) {
						api.get({
							action: 'query',
							pageids: item.pageid,
							redirects: '1'
						}).then(function (result) {
							var redir = result.query.redirects.pop();
							textbox.value = redir.to + (redir.tofragment ? '#' + redir.tofragment : '');
						});
					}
	
					return true;
				}
			}
		});
	
		ui.doCheck = function (callback) {
			var that = this;
	
			if (!/^\s*[^\|{}[\]]+\s*$/.test(mblob.target)) {
				setStatus(['Error: the target page name is invalid.']);
				return;
			}
	
			if (needsCheck) {
				var oldTarget = mblob.target;
				var normTarget;
				try {
					normTarget = new mw.Title(oldTarget);
				} catch (e) {
					setStatus(['"', oldTarget, '" is not a valid page name. Try again to proceed anyway.']);
					return;
				}
	
				setStatus(['Checking target validity...']);
				needsCheck = false;
	
				api.get({
					action: 'parse',
					page: oldTarget = mblob.target,
					prop: 'sections',
					redirects: '1'
				}, {
					success: function (result) {
						var m;
						if (result.error) {
							if (result.error.code === 'missingtitle') {
								setStatus([
									'Error: The target page "',
									link([normTarget.getPrefixedText()], mw.util.getUrl(normTarget.getPrefixedText(), { "class": "new" })),
									'" does not exist. Try again to proceed anyway.'
								]);
							} else {
								setStatus([
									'API error: "',
									result.error.info,
									'" [code: ', el('code', [result.error.code]), ']'
								]);
							}
							return;
						}
	
						if (result.parse.redirects && result.parse.redirects[0]) {
							var newTarget = result.parse.redirects[0].to + (result.parse.redirects[0].tofragment ? "#" + result.parse.redirects[0].tofragment : "");
							setStatus([
								'Error: The target page "',
								link([normTarget.getPrefixedText()], mw.util.getUrl(normTarget.getPrefixedText(), { redirect: "no" })),
								'" is already a redirect to "',
								link([newTarget], mw.util.getUrl(newTarget, { redirect: "no" })),
								'". Try again to proceed anyway, or ',
								link(['retarget this redirect to point there directly'], function () {
									uiTarget.value = mblob.target = newTarget +
										((!result.parse.redirects[0].tofragment && normTarget.fragment) ? '#' + normTarget.fragment : '');
									needsCheck = true;
								}),
								'.'
							]);
							return;
						}
	
						if (normTarget.fragment) { // we have a section link
							var sect = normaliseAnchor(normTarget.fragment);
							var isValidSect = false;
	
							var sectlist = result.parse.sections;
							for (var j = 0; j < sectlist.length; ++j) {
								if (sectlist[j].anchor === sect)
									isValidSect = true;
							}
	
							if (!isValidSect) {
								setStatus([
									'Error: The target page "',
									link([normTarget.getPrefixedText()], mw.util.getUrl(normTarget.getPrefixedText(), { redirect: "no" })),
									'" does not have a section called "',
									normTarget.fragment,
									'". Try again to proceed anyway.'
								]);
	
								return;
							}
						}
	
						callback(setStatus);
					}
				});
				
				return;
			}
	
			callback(setStatus);
		};
	
		return ui;
	}
	
	if ((mw.config.get('wgAction') === 'view') && (mw.config.get('wgArticleId') === 0)) { // nonexistent page.
		uiWrapper.appendChild(el('div', [
			link(['Create a redirect'], function () {
				while (uiWrapper.hasChildNodes())
					uiWrapper.removeChild(uiWrapper.firstChild);
				var mblob = new MarkupBlob();
				var ui = buildEditingUI(mblob, function (setStatus) {
					setStatus(['Saving...']);
					api.post({
						action: 'edit',
						title: mw.config.get('wgPageName'),
						token: mw.user.tokens.get('csrfToken'),
						createonly: 1,
						summary: 'Redirecting to [[' + mblob.target + ']] ([[User:MJL/Archer|Archer]])',
						text: mblob.toString()
					}, {
						success: function (result) {
							if (result.error) {
								setStatus([
									'API error: "',
									result.error.info,
									'" [code: ', el('code', [result.error.code]), ']'
								]);
								return;
							}
							setStatus(['Saved. Reloading page...']);
							if (/redirect=no/.test(location.href)) // XXX
								location.reload();
							else
								location.search = location.search ? location.search + '&redirect=no' : '?redirect=no';
						}
					});				
				});
				ui.statusLine.insertBefore(el('input', null, {
					type: 'submit',
					value: 'Save'
				}), ui.statusLine.firstChild);
				uiWrapper.appendChild(ui);
			}), ' from this page with Archer'
		], {
			"class": "kephir-sagittarius-invite"
		}));
		contentText.parentNode.insertBefore(uiWrapper, contentText);
	} else if ((mw.config.get('wgAction') === 'view') && mw.config.get('wgIsRedirect') && redirMsg) {
		// start editor immediately
		uiWrapper.appendChild(el('div', ['Loading page source…'], {
			"class": "kephir-sagittarius-loading"
		}));
		contentText.insertBefore(uiWrapper, contentText.firstChild);
		api.get({
			action: 'query',
			prop: 'info|revisions',
			rvprop: 'timestamp|content',
			pageids: mw.config.get('wgArticleId'),
			rvstartid: mw.config.get('wgRevisionId'),
			rvlimit: 1,
			rvdir: 'older',
			intoken: 'edit',
		}, {
			success: function (result) {
				if (result.error) {
					uiWrapper.appendChild(el('div', [
						'API error: "',
						result.error.info,
						'" [code: ', el('code', [result.error.code]), ']. Reload to try again.'
					], {
						"class": "kephir-sagittarius-error"
					}));
					return;
				}
				while (uiWrapper.hasChildNodes())
					uiWrapper.removeChild(uiWrapper.firstChild);
				var page = result.query.pages[mw.config.get('wgArticleId')];
				var mblob;
				var token = page.edittoken;
				try {
					mblob = new MarkupBlob(page.revisions[0]['*']);
				} catch(e) {
					uiWrapper.appendChild(el('div', ['Error: unable to parse page. Edit the source manually.'], {
						"class": "kephir-sagittarius-error"
					}));
					return;
				}
				redirMsg.parentNode.removeChild(redirMsg);
				var ui = buildEditingUI(mblob, function (setStatus) {
					setStatus(['Saving...']);
					api.post({
						action: 'edit',
						title: mw.config.get('wgPageName'),
						basetimestamp: page.revisions[0].timestamp,
						token: mw.user.tokens.get('csrfToken'),
						summary: 'Redirecting to [[' + mblob.target + ']] ([[User:MJL/Archer|Archer]])',
						text: mblob.toString()
					}, {
						success: function (result) {
							if (result.error) {
								setStatus([
									'API error: "',
									result.error.info,
									'" [code: ', el('code', [result.error.code]), ']'
								]);
								return;
							}
							setStatus(['Saved. Reloading page...']);
							if (/redirect=no/.test(location.href)) // XXX
								location.reload();
							else
								location.search = location.search ? location.search + '&redirect=no' : '?redirect=no';
						}
					});				
				});
				ui.statusLine.insertBefore(el('input', null, {
					type: 'submit',
					value: 'Save'
				}), ui.statusLine.firstChild);
				uiWrapper.appendChild(ui);
			}
		});
	} else if ((mw.config.get('wgPageContentModel') === 'wikitext') && ((mw.config.get('wgAction') === 'edit') || (mw.config.get('wgAction') === 'submit'))) {
		if (mw.util.getParamValue('section'))
			return;
		var editform = document.getElementById('editform');
	
		if (editform.wpTextbox1.readOnly)
			return;
	
		var uiPivot = document.getElementsByClassName('wikiEditor-ui')[0];
	
		var ui, mblob;
		firstHeading.appendChild(document.createTextNode(' '));
		firstHeading.appendChild(link(['♐'], function () {
			if (ui && ui.parentNode)
				ui.parentNode.removeChild(ui);
	
			try {
				mblob = new MarkupBlob(editform.wpTextbox1.value);
			} catch (e) {
				alert("Error: unable to parse page. This page is probably not a redirect.");
				return;
			}
	
			ui = buildEditingUI(mblob, function () {
				editform.wpSummary.value = 'Redirecting to [[' + mblob.target + ']] ([[User:MJL/Archer|Archer]])';
				editform.wpTextbox1.value = mblob.toString();
				mblob = null;
				ui.style.display = 'none';
				uiPivot.style.display = '';
			});
			ui.style.display = 'none';
			ui.statusLine.insertBefore(el('input', null, {
				type: "button",
				value: "Cancel",
			}, {
				click: function () {
					mblob = null;
					ui.style.display = 'none';
					uiPivot.style.display = '';				
				}
			}), ui.statusLine.firstChild);
			ui.statusLine.insertBefore(el('input', null, {
				type: "submit",
				value: "Check"
			}), ui.statusLine.firstChild);
			uiPivot.parentNode.insertBefore(ui, uiPivot);
			uiPivot.style.display = 'none';
			ui.style.display = '';
		}, {
			"class": "kephir-sagittarius-editlink",
			"title": "Edit this redirect with Archer"
		}));
	
		var submitButton;
		var inputs = editform.getElementsByTagName('input');
		for (var i = 0; i < inputs.length; ++i) {
			inputs[i].addEventListener('click', function (ev) {
				submitButton = this;
			}, false);
		}
	
		editform.addEventListener('submit', function (ev) {
			if (submitButton !== editform.wpSave)
				return;
			if (mblob) {
				ev.preventDefault();
				ev.stopImmediatePropagation();
				ui.doCheck(function (setStatus) {
					setStatus(['Proceeding with saving...']);
					editform.wpTextbox1.value = mblob.toString();
					editform.wpSummary.value = 'Redirecting to [[' + mblob.target + ']] ([[User:MJL/Archer|Archer]])';
					mblob = null;
					editform.submit();
				});
			}
		}, false);
	}
	
	if (!window.kephirSagittariusFollowCategoryRedirects)
	if ((mw.config.get('wgAction') === 'view') && (mw.config.get('wgNamespaceNumber') === wgNamespaceIds.category)) {
		var pagesList = document.getElementById('mw-pages').getElementsByClassName('mw-redirect');
		for (var i = 0; i < pagesList.length; ++i) {
			pagesList[i].href += '?redirect=no';
		}
	}
}

function abortConditions() {
	if (window.location.href.includes('&diff=')) {
		throw 'Archer does not run when viewing page diffs. Please revert before editing redirect.';
	}
	
	if (mw.config.get('wgNamespaceNumber') < 0) {
		throw 'Page is in a virtual namespace. Archer aborts.';
	}
}

function ArcherMain() {
	$.getJSON("https://en.wikipedia.org/w/index.php?title=User:MJL/Archer/Aliases.json&action=raw&ctype=application/json", function(aliasJSON) {
		$.getJSON("https://en.wikipedia.org/w/index.php?title=User:MJL/Archer/Templates.json&action=raw&ctype=application/json",function(templateJSON) {
			mw.loader.using(['jquery.suggestions', 'mediawiki.api', 'mediawiki.Title', 'mediawiki.action.view.redirectPage'], function () {
				mainCallback(aliasJSON,templateJSON);
			});
		});
	});
}

var api = new mw.Api();

api.get({
	action: "query",
	format: "json",
	prop: "info",
	formatversion: 2,
	titles: mw.config.get('wgPageName')
}, {
	success: function (result) {
		try {
			abortConditions();
		} catch(abortMessage) {
			console.info(abortMessage)
			return;
		}
		if (result.query.pages[0].redirect || (window.location.href.includes('&redlink=1'))) {
			ArcherMain();
		} else {
			console.debug('Page is not a redirect.')
			return;
		}
	}
});

});

// </nowiki>
/*
[[Category:Wikipedia scripts]]
*/