/* * 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.loaded = false; this.ruleMeta = null; this.database = new Database(); this.deinflector = new Deinflector(); } prepare() { if (this.loaded) { return Promise.resolve(); } const promises = [ jsonLoadInt('/bg/lang/deinflect.json'), this.database.prepare() ]; return Promise.all(promises).then(([reasons]) => { this.deinflector.setReasons(reasons); this.loaded = true; }); } findTerms(text, dictionaries, alphanumeric) { const titles = Object.keys(dictionaries); const cache = {}; if (!alphanumeric && text.length > 0) { const c = text[0]; if (!jpIsKana(c) && !jpIsKanji(c)) { return Promise.resolve({length: 0, definitions: []}); } } return this.findTermsDeinflected(text, titles, cache).then(deinfLiteral => { const textHiragana = wanakana._katakanaToHiragana(text); if (text === textHiragana) { return deinfLiteral; } else { return this.findTermsDeinflected(textHiragana, titles, cache).then(deinfHiragana => deinfLiteral.concat(deinfHiragana)); } }).then(deinflections => { 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) }); } } 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}; }); } findTermsGrouped(text, dictionaries, alphanumeric) { return this.findTerms(text, dictionaries, alphanumeric).then(({length, definitions}) => { return {length, definitions: dictTermsGroup(definitions, dictionaries)}; }); } findKanji(text, dictionaries) { const titles = Object.keys(dictionaries); const processed = {}; const promises = []; for (const c of text) { if (!processed[c]) { promises.push(this.database.findKanji(c, titles)); processed[c] = true; } } return Promise.all(promises).then(defSets => { const definitions = defSets.reduce((a, b) => a.concat(b), []); 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; }); } findTermsDeinflected(text, dictionaries, cache) { const definer = term => { if (cache.hasOwnProperty(term)) { return Promise.resolve(cache[term]); } return this.database.findTerms(term, dictionaries).then(definitions => cache[term] = definitions); }; const promises = []; for (let i = text.length; i > 0; --i) { promises.push(this.deinflector.deinflect(text.slice(0, i), definer)); } return Promise.all(promises).then(results => { let deinflections = []; for (const result of results) { deinflections = deinflections.concat(result); } return deinflections; }); } processKanji(definitions) { for (const definition of definitions) { const tags = definition.tags.map(tag => dictTagBuild(tag, definition.tagMeta)); definition.tags = dictTagsSort(tags); } return definitions; } }