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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 = [
loadJsonInt('bg/data/deinflect.json'),
this.database.prepare()
];
return Promise.all(promises).then(([reasons]) => {
this.deinflector.setReasons(reasons);
this.loaded = true;
});
}
findTerm(text, dictionaries, enableSoftKatakanaSearch) {
return this.findDeinflectGroups(text, dictionaries).then(groups => {
const textHiragana = wanakana._katakanaToHiragana(text);
if (text !== textHiragana && enableSoftKatakanaSearch) {
return this.findDeinflectGroups(textHiragana, dictionaries).then(groupsHiragana => {
for (const key in groupsHiragana) {
groups[key] = groups[key] || groupsHiragana[key];
}
return groups;
});
} else {
return groups;
}
}).then(groups => {
const definitions = [];
for (const key in groups) {
definitions.push(groups[key]);
}
let length = 0;
for (const result of definitions) {
length = Math.max(length, result.source.length);
}
return {
length,
definitions: sortTermDefs(definitions)
};
});
}
findKanji(text, dictionaries) {
const processed = {};
const promises = [];
for (const c of text) {
if (!processed[c]) {
promises.push(this.database.findKanji(c, dictionaries));
processed[c] = true;
}
}
return Promise.all(promises).then(sets => this.processKanji(sets.reduce((a, b) => a.concat(b), [])));
}
findDeinflectGroups(text, dictionaries) {
const deinflectGroups = {};
const deinflectPromises = [];
for (let i = text.length; i > 0; --i) {
deinflectPromises.push(
this.deinflector.deinflect(text.slice(0, i), term => {
return this.database.findTerm(term, dictionaries).then(definitions => definitions.map(definition => definition.rules));
}).then(deinflects => {
const processPromises = [];
for (const deinflect of deinflects) {
processPromises.push(
this.processDeinflection(
deinflectGroups,
deinflect.source,
deinflect.rules,
deinflect.reasons,
deinflect.root,
dictionaries
)
);
}
return Promise.all(processPromises);
})
);
}
return Promise.all(deinflectPromises).then(() => deinflectGroups);
}
processDeinflection(groups, source, rules, reasons, root, dictionaries) {
return this.database.findTerm(root, dictionaries).then(definitions => {
for (const definition of definitions) {
if (definition.id in groups) {
continue;
}
let matched = rules.length === 0;
for (const rule of rules) {
if (definition.rules.includes(rule)) {
matched = true;
break;
}
}
if (!matched) {
continue;
}
const tags = definition.tags.map(tag => buildTag(tag, definition.tagMeta));
groups[definition.id] = {
source,
reasons,
score: definition.score,
expression: definition.expression,
reading: definition.reading,
glossary: definition.glossary,
tags: sortTags(tags)
};
}
});
}
processKanji(definitions) {
for (const definition of definitions) {
const tags = definitions.tags.map(tag => buildTag(tag, definition.tagMeta));
definition.tags = sortTags(tags);
}
return definitions;
}
}
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