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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.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 = jpKatakanaToHiragana(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;
}
}
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