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TiddlyWiki5/core/modules/filters/subfilter.js
2018-11-16 11:27:19 +00:00

34 lines
645 B
JavaScript

/*\
title: $:/core/modules/filters/subfilter.js
type: application/javascript
module-type: filteroperator
Filter operator returning its operand evaluated as a filter
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
Export our filter function
*/
exports.subfilter = function(source,operator,options) {
var list = options.wiki.filterTiddlers(operator.operand,options.widget,source);
if(operator.prefix === "!") {
var results = [];
source(function(tiddler,title) {
if(list.indexOf(title) === -1) {
results.push(title);
}
});
return results;
} else {
return list;
}
};
})();