mirror of
https://github.com/Jermolene/TiddlyWiki5
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6401b5c886
* fixed the "0 is not a number bug" in listops and x-listops * Fixed one comment * "default" is not a good name for a variable * Following code styles. Moving getInt to utils. * Removing unwanted spaces introduced by me
107 lines
2.1 KiB
JavaScript
107 lines
2.1 KiB
JavaScript
/*\
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title: $:/core/modules/filters/listops.js
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type: application/javascript
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module-type: filteroperator
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Filter operators for manipulating the current selection list
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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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Order a list
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*/
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exports.order = function(source,operator,options) {
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var results = [];
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if(operator.operand.toLowerCase() === "reverse") {
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source(function(tiddler,title) {
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results.unshift(title);
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});
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} else {
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source(function(tiddler,title) {
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results.push(title);
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});
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}
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return results;
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};
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/*
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Reverse list
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*/
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exports.reverse = function(source,operator,options) {
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var results = [];
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source(function(tiddler,title) {
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results.unshift(title);
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});
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return results;
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};
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/*
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First entry/entries in list
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*/
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exports.first = function(source,operator,options) {
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var count = $tw.utils.getInt(operator.operand,1),
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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.slice(0,count);
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};
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/*
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Last entry/entries in list
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*/
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exports.last = function(source,operator,options) {
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var count = $tw.utils.getInt(operator.operand,1),
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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.slice(-count);
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};
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/*
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All but the first entry/entries of the list
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*/
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exports.rest = function(source,operator,options) {
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var count = $tw.utils.getInt(operator.operand,1),
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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.slice(count);
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};
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exports.butfirst = exports.rest;
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exports.bf = exports.rest;
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/*
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All but the last entry/entries of the list
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*/
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exports.butlast = function(source,operator,options) {
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var count = $tw.utils.getInt(operator.operand,1),
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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.slice(0,-count);
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};
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exports.bl = exports.butlast;
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/*
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The nth member of the list
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*/
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exports.nth = function(source,operator,options) {
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var count = $tw.utils.getInt(operator.operand,1),
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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.slice(count - 1,count);
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};
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})();
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