TiddlyWiki5/core/modules/filters/is/missing.js

37 wiersze
633 B
JavaScript

/*\
title: $:/core/modules/filters/is/missing.js
type: application/javascript
module-type: isfilteroperator
Filter function for [is[missing]]
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
Export our filter function
*/
exports.missing = function(source,prefix,options) {
var results = [];
if(prefix === "!") {
source(function(tiddler,title) {
if(options.wiki.tiddlerExists(title)) {
results.push(title);
}
});
} else {
source(function(tiddler,title) {
if(!options.wiki.tiddlerExists(title)) {
results.push(title);
}
});
}
return results;
};
})();