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/*
* Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* 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 <http://www.gnu.org/licenses/>.
*/
class Translator {
constructor() {
this.database = null;
this.deinflector = null;
}
async prepare() {
if (!this.database) {
this.database = new Database();
await this.database.prepare();
}
if (!this.deinflector) {
const url = chrome.extension.getURL('/bg/lang/deinflect.json');
const reasons = await requestJson(url, 'GET');
this.deinflector = new Deinflector(reasons);
}
}
async findTermsGrouped(text, dictionaries, alphanumeric) {
const {length, definitions} = await this.findTerms(text, dictionaries, alphanumeric);
return {length, definitions: dictTermsGroup(definitions, dictionaries)};
}
async findTerms(text, dictionaries, alphanumeric) {
if (!alphanumeric && text.length > 0) {
const c = text[0];
if (!jpIsKana(c) && !jpIsKanji(c)) {
return {length: 0, definitions: []};
}
}
const cache = {};
const titles = Object.keys(dictionaries);
let deinflections = await this.findTermsDeinflected(text, titles, cache);
const textHiragana = jpKatakanaToHiragana(text);
if (text !== textHiragana) {
deinflections = deinflections.concat(await this.findTermsDeinflected(textHiragana, titles, cache));
}
let definitions = [];
for (const deinflection of deinflections) {
for (const definition of deinflection.definitions) {
const tags = definition.tags.map(tag => dictTagBuild(tag, definition.tagMeta));
tags.push(dictTagBuildSource(definition.dictionary));
definitions.push({
source: deinflection.source,
reasons: deinflection.reasons,
score: definition.score,
id: definition.id,
dictionary: definition.dictionary,
expression: definition.expression,
reading: definition.reading,
glossary: definition.glossary,
tags: dictTagsSort(tags),
furigana: distributeFurigana(definition.expression, definition.reading)
});
}
}
definitions = dictTermsUndupe(definitions);
definitions = dictTermsSort(definitions, dictionaries);
let length = 0;
for (const definition of definitions) {
length = Math.max(length, definition.source.length);
}
return {length, definitions};
}
async findTermsDeinflected(text, titles, cache) {
const definer = async term => {
if (cache.hasOwnProperty(term)) {
return cache[term];
} else {
return cache[term] = await this.database.findTerms(term, titles);
}
};
let deinflections = [];
for (let i = text.length; i > 0; --i) {
const textSlice = text.slice(0, i);
deinflections = deinflections.concat(await this.deinflector.deinflect(textSlice, definer));
}
return deinflections;
}
async findKanji(text, dictionaries) {
let definitions = [];
const processed = {};
const titles = Object.keys(dictionaries);
for (const c of text) {
if (!processed[c]) {
definitions = definitions.concat(await this.database.findKanji(c, titles));
processed[c] = true;
}
}
for (const definition of definitions) {
const tags = definition.tags.map(tag => dictTagBuild(tag, definition.tagMeta));
tags.push(dictTagBuildSource(definition.dictionary));
definition.tags = dictTagsSort(tags);
}
return definitions;
}
}
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