First commit

plugins/tiddlywiki/words/filters.js

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+/*\
+title: $:/plugins/tiddlywiki/words/filters.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operators
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+var WORD_LIST_TITLE = "$:/plugins/tiddlywiki/words/WordList";
+
+/*
+Export our filter function
+*/
+exports.anagrams = function(source,operator,options) {
+	// Helper to lowercase the letters of a string and sort the letters into alphabetical order
+	var normaliseLetters = function(str) {
+		return str.toLowerCase().split("").sort().join("");
+	};
+	// Create a hashmap of normalised strings to arrays of words
+	var anagramList = options.wiki.getCacheForTiddler(WORD_LIST_TITLE,"anagrams",function() {
+			var words = options.wiki.getTiddlerText(WORD_LIST_TITLE,"").split("\n"),
+				result = {};
+console.log(words.length  + " words in dictionary")
+			$tw.utils.each(words,function(word) {
+				var normalisedWord = normaliseLetters(word);
+				if(!(normalisedWord in result)) {
+					result[normalisedWord] = [];
+				}
+				result[normalisedWord].push(word);
+			});
+console.log(Object.keys(result).length  + " anagrams found")
+			return result;
+		});
+	// Take the anagram of each input word
+	var results = [];
+	source(function(tiddler,title) {
+		// Check if the title contains wildcards
+		if(title.indexOf("?") === -1) {
+			// If there are no wildcards we can just pull out the anagrams directly
+			var anagrams = anagramList[normaliseLetters(title)];
+			if(anagrams) {
+				Array.prototype.push.apply(results,anagrams);
+			}
+		}
+	});
+	return results;
+};
+
+})();

plugins/tiddlywiki/words/plugin.info

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+{
+	"title": "$:/plugins/tiddlywiki/words",
+	"name": "Words",
+	"description": "Word lists for games and inspiration",
+	"list": "readme examples"
+}

plugins/tiddlywiki/words/readme.tid

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+title: $:/plugins/tiddlywiki/words/readme
+
+!! Dictionary
+
+!! Filter Operators
+
+!!! `anagrams` operator
+
+The anagrams operator takes as input a list of words and returns a list of English anagrams of those words. Any input items that are not English words (eg because they contain whitespace or non-Latin characters) will not return any anagrams.
+
+The following special characters are recognised:
+
+* `?` stands for any letter
+