META-INF.dirigible.dev-tools.common.TextDictionary.js Maven / Gradle / Ivy
/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import {Trie} from './Trie.js';
/**
* @unrestricted
*/
export class TextDictionary {
constructor() {
/** @type {!Map} */
this._words = new Map();
this._index = new Trie();
}
/**
* @param {string} word
*/
addWord(word) {
let count = this._words.get(word) || 0;
++count;
this._words.set(word, count);
this._index.add(word);
}
/**
* @param {string} word
*/
removeWord(word) {
let count = this._words.get(word) || 0;
if (!count) {
return;
}
if (count === 1) {
this._words.delete(word);
this._index.remove(word);
return;
}
--count;
this._words.set(word, count);
}
/**
* @param {string} prefix
* @return {!Array.}
*/
wordsWithPrefix(prefix) {
return this._index.words(prefix);
}
/**
* @param {string} word
* @return {boolean}
*/
hasWord(word) {
return this._words.has(word);
}
/**
* @param {string} word
* @return {number}
*/
wordCount(word) {
return this._words.get(word) || 0;
}
reset() {
this._words.clear();
this._index.clear();
}
}