User:Danski454/w2wFinder.js

 varw2wNext;

 (function(mw,$){//isolate code

 varLIST_LOCATION="User:Danski454/w2wFinder/list";
 varinsensitiveList=[];
 varsensitiveList=[];
 varregexList=[];
 varindex=-1;
 varuseDiv=false;

 functioncreateLists(location){
 $.getJSON(
 mw.util.wikiScript('api'),
 {
 format:'json',
 action:'query',
 prop:'revisions',
 rvprop:'content',
 rvlimit:1,
 titles:location
 }
 )
 .done(function(data){
 varpage,wikitext;
 //try {
 for(pageindata.query.pages){
 wikitext=data.query.pages[page].revisions[0]['*'];
 createListsWikitext(wikitext);
 }
 /*} catch ( e ) {
 				alert("Unable to load words to watch list - processing crashed");
 			}*/
 })
 .fail(function(){alert("Unable to load words to watch list - ajax failed");});
 }

 functioncreateListsWikitext(wikitext){
 varregex_regex=/^\/.+\/[gmixXsuUAJD]*$/;
 varlines=wikitext.split("\n");
 for(vari=0;i<lines.length;i++){
 if(lines[i].charAt(0)==="*"){//if line is a bullet point
 varline=lines[i].slice(1).trim();
 if(regex_regex.test(line)){
 varre,flags,end;
 end=line.lastIndexOf("/");
 flags=line.slice(end+1);
 re=line.slice(1,end);
 if(flags.indexOf("g")===-1){
 flags=flags+"g";//force g flag
 }
 try{
 regexList.push(newRegExp(re,flags));
 }
 catch(e){
 console.error("Unable to create regex /"+re+"/"+flags);
 }
 }elseif(line.toLowerCase()===line){
 insensitiveList.push(line);
 }else{
 sensitiveList.push(line);
 }
 }
 }
 createUI();
 }

 functiontestWikitext(start){
 vartext,lcaseText,earliestIssue=Number.POSITIVE_INFINITY,loc,length;
 text=$("#wpTextbox1").val();
 if(!text){
 console.warn("Words to watch finder could not find editing area, you must use the 2010 editor");
 return;
 /*text = $("div .mw-parser-output [contenteditable='true']").first().text();
 		useDiv = true;*/
 }
 lcaseText=text.toLowerCase();
 for(vari=0;i<insensitiveList.length;i++){
 loc=lcaseText.indexOf(insensitiveList[i],start);
 if(loc!==-1&&loc<earliestIssue){
 length=insensitiveList[i].length;
 earliestIssue=loc;
 }
 }
 for(vars=0;s<sensitiveList.length;s++){
 loc=text.indexOf(sensitiveList[s],start);
 if(loc!==-1&&loc<earliestIssue){
 length=sensitiveList[s].length;
 earliestIssue=loc;
 }
 }
 for(varr=0;r<regexList.length;r++){
 while(true){
 varresult=regexList[r].exec(text);
 if(result===null||result.index>=earliestIssue){
 break;
 }
 if(result.index>=start){
 length=result[0].length;
 earliestIssue=result.index;
 break;
 }
 }
 regexList[r].lastIndex=0;
 }
 if(earliestIssue!==Number.POSITIVE_INFINITY){
 return{index:earliestIssue,length:length};
 }elseif(start===0){
 return{index:-1,length:0};//there are no occurences
 }else{
 returntestWikitext(0);//we have reached the end, but the could be previous occurences
 }
 }

 functioncreateUI(){
 $("#editform").before('Words to watch finder: <span id="w2w-status">No issues found</span> <input id="w2w-next" type="button" value="Next issue" onclick="w2wNext();" />');
 if(testWikitext(0)===-1){
 $("#w2w-status").html("No issues found");
 }else{
 $("#w2w-status").html("Possible issues found");
 }
 }

 functiongotoNextIssue(){
 varout=testWikitext(index+1);
 index=out.index;
 if(index===-1){
 $("#w2w-status").html("No issues found");
 }else{
 $("#w2w-status").html("Possible issues found");
 vartextarea=$("#wpTextbox1")[0];
 textarea.focus();
 textarea.setSelectionRange(index,index+out.length);//move cursor
 }
 }

 $(document).ready(function(){
 if(mw.config.get("wgAction")==="edit"&&mw.config.get("wgIsProbablyEditable")&&(mw.config.get("wgNamespaceNumber")===0||mw.config.get("wgTitle")==="Sandbox")){
 createLists(LIST_LOCATION);
 }
 });

 w2wNext=gotoNextIssue;//allow external calls

 })(mediaWiki,jQuery);