mirror of
https://github.com/Jermolene/TiddlyWiki5
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39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
/*\
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title: $:/core/modules/filters/function.js
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type: application/javascript
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module-type: filteroperator
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Filter operator returning those input titles that are returned from a function
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Export our filter function
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*/
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exports.function = function(source,operator,options) {
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var functionName = operator.operands[0],
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customDefinition = options.widget && options.widget.getVariableInfo && options.widget.getVariableInfo(functionName);
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if(customDefinition && customDefinition.srcVariable && customDefinition.srcVariable.isFunctionDefinition) {
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var variables = Object.create(null);
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// Go through each of the defined parameters, and make a variable with the value of the corresponding operand
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$tw.utils.each(customDefinition.srcVariable.params,function(param,index) {
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var value = operator.operands[1 + index]; // Skip over the first operand that gives the function name
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variables[param.name] = value === undefined ? param["default"] || "" : value;
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});
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return options.wiki.filterTiddlers(customDefinition.srcVariable.value,options.widget.makeFakeWidgetWithVariables(variables),source);
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}
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// Return the input list if the function wasn't found
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var results = [];
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source(function(tiddler,title) {
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results.push(title);
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});
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return results;
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};
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})();
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