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TiddlyWiki5/core/modules/filters/filter.js
2020-10-06 19:20:03 +01:00

32 lines
680 B
JavaScript

/*\
title: $:/core/modules/filters/filter.js
type: application/javascript
module-type: filteroperator
Filter operator returning those input titles that pass a subfilter
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
Export our filter function
*/
exports.filter = function(source,operator,options) {
var filterFn = options.wiki.compileFilter(operator.operand),
results = [],
target = operator.prefix !== "!";
source(function(tiddler,title) {
var list = filterFn.call(options.wiki,options.wiki.makeTiddlerIterator([title]));
if((list.length > 0) === target) {
results.push(title);
}
});
return results;
};
})();