User:Gerbrant/edit/regexReplace.js

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hookEvent("load", function()
{
	var lang, textBox = document.getElementById("wpTextbox1");
	if(!textBox) return;
	try{  lang = Gerbrant.edit.regexReplace.lang;  }catch(nopresets){}
	if(!lang) lang = wgUserLanguage;
	switch(lang)
	{

// Localized strings:

case "nl": str =
{
	finished: "Voltooid; $1 items werden vervangen.",
	finished2: "Voltooid; $1 van $2 items werden vervangen.",
	notFound: "De gevraagde tekst is niet gevonden.",
	replace: "Vervangen...",
	replaceSel: "Vervang selectie",
	errorNoCheckBox: "Kan het corresponderende keuzevakje niet vinden.",
	useRepFun: "< functie >"
};
break;

default: str =
{
	finished: "Finished; $1 items were replaced.",
	finished2: "Finished; $1 out of $2 items were replaced.",
	notFound: "Requested text was not found.",
	replace: "Replace...",
	replaceSel: "Replace selection",
	errorNoCheckBox: "Cannot find the corresponding checkbox.",
	useRepFun: "< function >"
};

// Don't localize anything beyond this point.

	}

	var regex, text, minFrag = 30, minDel = 10, repFun;

	var results = document.createElement("DIV");
	var tbRegex = document.createElement("INPUT");
	//tbRegex.value = "[A-Z]{2,}";

	var hl = document.createElement("INPUT");
	hl.type = "checkbox";

	var rep = document.createElement("DIV");
	rep.style.display = "none";

	function findMatches()
	{
		var m = [], r = [], i = 0;
		regex = new RegExp(tbRegex.value, hl.checked ? "g" : "ig");
		text = textBox.value;

		var t = text.replace(regex, function(a)
		{
			m.push(a);
			return "\u0001";
		}).split("\u0001");

		if(m.length == 0)
		{
			results.innerHTML = str.notFound;
			return;
		}

		if(t[0].length > minFrag + minDel)
		{
			r.push(" \u2026 ");
			r.push(t[0].slice(-minFrag));
		}
		else
			r.push(t[0]);
		while(true)
		{
			r.push('\u0001b>\u0001input type="checkbox" checked id="Gerbrant-errCB');
			r.push(i);
			r.push('">');
			r.push(m[i]);
			r.push('\u0001/b>');
			if(++i >= m.length) break;
			if(t[i].length > 2 * minFrag + minDel)
			{
				r.push(t[i].slice(0, minFrag));
				r.push(" \u2026 ");
				r.push(t[i].slice(-minFrag));
			}
			else
				r.push(t[i]);
		}
		if(t[i].length > minFrag + minDel)
		{
			r.push(t[i].slice(0, minFrag));
			r.push(" \u2026 ");
		}
		else
			r.push(t[i]);

		rep.style.display = "";
		results.innerHTML = r.join("").replace(
			/&/g, "&amp;").replace(
			/</g, "&lt;").replace(
			/\u0001/g, "<").replace(
			/\n[ \t]/g, "\n&nbsp;").replace(
			/[ \t](?=[ \t])/g, "&nbsp;").replace(
			/\n/g, "<br>");
	}

	var ok = document.createElement("INPUT");
	ok.type = "button";
	ok.value = str.replace;
	ok.onclick = findMatches;

	var div = document.createElement("DIV");
	div.appendChild(tbRegex);
	div.appendChild(hl);
	div.appendChild(ok);

	var tbReplace = document.createElement("INPUT");
	//tbReplace.value = "function(a){return a.slice(0,1) + a.slice(1).toLowerCase();}";
	
	var chkJS = document.createElement("INPUT");
	chkJS.type = "checkbox";

	function doReplace()
	{
		var rjs = chkJS.checked, i = 0, j = 0, r, nt;
		var ohno = false;
		r = tbReplace.value;
		if(rjs)
			if(r == str.useRepFun) r = repFun;
			else eval("r=" + r);
		nt = text.replace(regex, function(a)
		{
			var c = document.getElementById("Gerbrant-errCB" + i++);
			if(c)
				if(c.checked)
				{
					j++;
					if(rjs)
						try
						{
							return r.apply(RegExp, arguments);
						}
						catch(e)
						{
							alert(e.message);
							return a;
						}
					else
						return r;
				}
				else
					return a;
			else
				ohno = true;
		});
		if(ohno)
		{
			alert(str.errorNoCheckBox);
			return;
		}
		if(j < i) results.innerHTML = str.finished2.replace("$1", j).replace("$2", i);
		else results.innerHTML = str.finished.replace("$1", j);
		rep.style.display = "none";
		textBox.value = nt;
	}

	var finish = document.createElement("INPUT");
	finish.type = "button";
	finish.value = str.replaceSel;
	finish.onclick = doReplace;

	rep.appendChild(tbReplace);
	rep.appendChild(chkJS);
	rep.appendChild(finish);

	textBox.parentNode.insertBefore(div, textBox);
	textBox.parentNode.insertBefore(rep, textBox);
	textBox.parentNode.insertBefore(results, textBox);

	function onResize()
	{
		finish.style.height = ok.style.height = tbRegex.offsetHeight;
		tbRegex.style.width = textBox.offsetWidth - ok.offsetWidth - hl.offsetWidth;
		tbReplace.style.width = textBox.offsetWidth - finish.offsetWidth - chkJS.offsetWidth;
	}
	onResize();
	hookEvent("resize", onResize);

	if(typeof module == "function")
		module("Gerbrant.edit.regexReplace", {replace: function(what, ulcase, repl, isjs)
		{
			tbRegex.value = what;
			hl.checked = ulcase;
			if(isjs == undefined && typeof repl == "function")
			{
				repFun = repl;
				tbReplace.value = str.useRepFun;
				chkJS.checked = true;
			}
			else
			{
				tbReplace.value = repl;
				chkJS.checked = isjs;
			}
			findMatches();
		}});
});

if(typeof loadModule == "function")
{
	new function()
	{
		var presets;
		try{  presets = Gerbrant.edit.regexReplace.presets;  }catch(nopresets){}
		if(presets)
			loadModule("Gerbrant.gui.lilink", function(l)
			{
				hookEvent("load", function()
				{
					var i, p, e = function(s)
					{
						return s.toString().replace(/["\\]/g, function(a)
						{
							return "\\" + a;
						});
					};
					if(!document.getElementById("wpTextbox1")) return;
					for(i in presets)
					{
						p = presets[i];
						l.addToolboxLink('javascript:Gerbrant.edit.regexReplace.replace("' +
							e(p.regex) + '",' + !!p.caseSens + ',"' +
							e(p.replace) + '",' +
							(typeof(p.replace) == "function") + ');', i);
					}
				});
			});
	};
}