169 lines
4.9 KiB
JavaScript
169 lines
4.9 KiB
JavaScript
/*
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* Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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class Translator {
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constructor() {
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this.dictionary = new Dictionary();
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this.deinflector = new Deinflector();
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this.pendingLoads = [];
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}
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loadData(paths, callback) {
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if (this.initialized) {
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callback();
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return;
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}
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for (const key of ['rules', 'edict', 'enamdict', 'kanjidic']) {
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this.pendingLoads.push(key);
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Translator.loadData(paths[key], (response) => {
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switch (key) {
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case 'rules':
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this.deinflector.setRules(JSON.parse(response));
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break;
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case 'kanjidic':
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this.dictionary.addKanjiData(Translator.parseCsv(response));
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break;
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case 'edict':
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case 'enamdict':
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this.dictionary.addTermsData(Translator.parseCsv(response));
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break;
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}
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const index = this.pendingLoads.indexOf(key);
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this.pendingLoads = this.pendingLoads.splice(index, 1);
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if (this.pendingLoads.length === 0) {
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callback();
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}
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});
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}
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}
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findTerm(text) {
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const groups = {};
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for (let i = text.length; i > 0; --i) {
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const term = text.slice(0, i);
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const dfs = this.deinflector.deinflect(term, t => {
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const tags = [];
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for (const d of this.dictionary.findTerm(t)) {
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tags.push(d.tags);
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}
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return tags;
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});
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if (dfs === null) {
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this.processTerm(groups, term);
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} else {
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for (const df of dfs) {
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this.processTerm(groups, df.source, df.rules, df.root);
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}
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}
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}
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let results = [];
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for (const key in groups) {
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results.push(groups[key]);
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}
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results = results.sort((v1, v2) => {
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const sl1 = v1.source.length;
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const sl2 = v2.source.length;
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if (sl1 > sl2) {
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return -1;
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} else if (sl1 < sl2) {
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return 1;
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}
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const p1 = v1.tags.indexOf('P') >= 0;
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const p2 = v2.tags.indexOf('P') >= 0;
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if (p1 && !p2) {
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return -1;
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} else if (!p1 && p2) {
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return 1;
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}
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const rl1 = v1.rules.length;
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const rl2 = v2.rules.length;
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if (rl1 < rl2) {
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return -1;
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} else if (rl2 > rl1) {
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return 1;
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}
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return 0;
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});
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let length = 0;
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for (const result of results) {
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length = Math.max(length, result.source.length);
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}
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return {results: results, length: length};
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}
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findKanji(text) {
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let results = [];
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const processed = {};
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for (const c of text) {
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if (!processed.has(c)) {
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results = results.concat(this.dictionary.findKanji(c));
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processed[c] = true;
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}
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}
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return results;
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}
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processTerm(groups, source, rules=[], root='') {
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for (const entry of this.dictionary.findTerm(root || source)) {
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if (entry.id in groups) {
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continue;
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}
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groups[entry.id] = {
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expression: entry.expression,
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reading: entry.reading,
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glossary: entry.glossary,
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tags: entry.tags,
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source: source,
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rules: rules
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};
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}
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}
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static loadData(url, callback) {
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const xhr = new XMLHttpRequest();
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xhr.addEventListener('load', () => callback(xhr.responseText));
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xhr.open('GET', chrome.extension.getURL(url), true);
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xhr.send();
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}
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static parseCsv(data) {
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const result = [];
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for (const row in data.split('\n')) {
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result.push(row.split('\t'));
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}
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return result;
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}
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}
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