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/*
* Copyright (C) 2020-2021 Yomichan Authors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
class DictionaryDataUtil {
static groupTermFrequencies(frequencies) {
const map1 = new Map();
for (const {dictionary, expression, reading, hasReading, frequency} of frequencies) {
let map2 = map1.get(dictionary);
if (typeof map2 === 'undefined') {
map2 = new Map();
map1.set(dictionary, map2);
}
const readingKey = hasReading ? reading : null;
const key = JSON.stringify([expression, readingKey], null, 0);
let frequencyData = map2.get(key);
if (typeof frequencyData === 'undefined') {
frequencyData = {expression, reading: readingKey, frequencies: new Set()};
map2.set(key, frequencyData);
}
frequencyData.frequencies.add(frequency);
}
return this._createFrequencyGroupsFromMap(map1);
}
static groupKanjiFrequencies(frequencies) {
const map1 = new Map();
for (const {dictionary, character, frequency} of frequencies) {
let map2 = map1.get(dictionary);
if (typeof map2 === 'undefined') {
map2 = new Map();
map1.set(dictionary, map2);
}
let frequencyData = map2.get(character);
if (typeof frequencyData === 'undefined') {
frequencyData = {character, frequencies: new Set()};
map2.set(character, frequencyData);
}
frequencyData.frequencies.add(frequency);
}
return this._createFrequencyGroupsFromMap(map1);
}
static getPitchAccentInfos(definition) {
if (definition.type === 'kanji') { return []; }
const results = new Map();
const allExpressions = new Set();
const allReadings = new Set();
for (let {expression, reading, pitches: expressionPitches} of definition.expressions) {
if (reading.length === 0) { reading = expression; }
allExpressions.add(expression);
allReadings.add(reading);
for (const {pitches, dictionary} of expressionPitches) {
let dictionaryResults = results.get(dictionary);
if (typeof dictionaryResults === 'undefined') {
dictionaryResults = [];
results.set(dictionary, dictionaryResults);
}
for (const {position, tags} of pitches) {
let pitchAccentInfo = this._findExistingPitchAccentInfo(reading, position, tags, dictionaryResults);
if (pitchAccentInfo === null) {
pitchAccentInfo = {expressions: new Set(), reading, position, tags};
dictionaryResults.push(pitchAccentInfo);
}
pitchAccentInfo.expressions.add(expression);
}
}
}
const multipleReadings = (allReadings.size > 1);
for (const dictionaryResults of results.values()) {
for (const result of dictionaryResults) {
const exclusiveExpressions = [];
const exclusiveReadings = [];
const resultExpressions = result.expressions;
if (!this._areSetsEqual(resultExpressions, allExpressions)) {
exclusiveExpressions.push(...this._getSetIntersection(resultExpressions, allExpressions));
}
if (multipleReadings) {
exclusiveReadings.push(result.reading);
}
result.expressions = [...resultExpressions];
result.exclusiveExpressions = exclusiveExpressions;
result.exclusiveReadings = exclusiveReadings;
}
}
const results2 = [];
for (const [dictionary, pitches] of results.entries()) {
results2.push({dictionary, pitches});
}
return results2;
}
// Private
static _createFrequencyGroupsFromMap(map) {
const results = [];
for (const [dictionary, map2] of map.entries()) {
const frequencyDataArray = [];
for (const frequencyData of map2.values()) {
frequencyData.frequencies = [...frequencyData.frequencies];
frequencyDataArray.push(frequencyData);
}
results.push({dictionary, frequencyData: frequencyDataArray});
}
return results;
}
static _findExistingPitchAccentInfo(reading, position, tags, pitchAccentInfoList) {
for (const pitchInfo of pitchAccentInfoList) {
if (
pitchInfo.reading === reading &&
pitchInfo.position === position &&
this._areTagListsEqual(pitchInfo.tags, tags)
) {
return pitchInfo;
}
}
return null;
}
static _areTagListsEqual(tagList1, tagList2) {
const ii = tagList1.length;
if (tagList2.length !== ii) { return false; }
for (let i = 0; i < ii; ++i) {
const tag1 = tagList1[i];
const tag2 = tagList2[i];
if (tag1.name !== tag2.name || tag1.dictionary !== tag2.dictionary) {
return false;
}
}
return true;
}
static _areSetsEqual(set1, set2) {
if (set1.size !== set2.size) {
return false;
}
for (const value of set1) {
if (!set2.has(value)) {
return false;
}
}
return true;
}
static _getSetIntersection(set1, set2) {
const result = [];
for (const value of set1) {
if (set2.has(value)) {
result.push(value);
}
}
return result;
}
}
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