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-rw-r--r--ext/bg/js/database.js101
-rw-r--r--ext/bg/js/deinflector.js122
-rw-r--r--ext/bg/js/translator.js133
3 files changed, 229 insertions, 127 deletions
diff --git a/ext/bg/js/database.js b/ext/bg/js/database.js
index 12a2577f..e8214c3c 100644
--- a/ext/bg/js/database.js
+++ b/ext/bg/js/database.js
@@ -75,6 +75,32 @@ class Database {
return results;
}
+ async findTermsBulk(terms, titles) {
+ const promises = [];
+ const visited = {};
+ const results = [];
+ const createResult = Database.createTerm;
+ const filter = (row) => titles.includes(row.dictionary);
+
+ const db = this.db.backendDB();
+ const dbTransaction = db.transaction(['terms'], 'readonly');
+ const dbTerms = dbTransaction.objectStore('terms');
+ const dbIndex1 = dbTerms.index('expression');
+ const dbIndex2 = dbTerms.index('reading');
+
+ for (let i = 0; i < terms.length; ++i) {
+ const only = IDBKeyRange.only(terms[i]);
+ promises.push(
+ Database.getAll(dbIndex1, only, i, visited, filter, createResult, results),
+ Database.getAll(dbIndex2, only, i, visited, filter, createResult, results)
+ );
+ }
+
+ await Promise.all(promises);
+
+ return results;
+ }
+
async findTermsExact(term, reading, titles) {
if (!this.db) {
throw 'Database not initialized';
@@ -124,6 +150,28 @@ class Database {
return results;
}
+ async findTermMetaBulk(terms, titles) {
+ const promises = [];
+ const visited = {};
+ const results = [];
+ const createResult = Database.createTermMeta;
+ const filter = (row) => titles.includes(row.dictionary);
+
+ const db = this.db.backendDB();
+ const dbTransaction = db.transaction(['termMeta'], 'readonly');
+ const dbTerms = dbTransaction.objectStore('termMeta');
+ const dbIndex = dbTerms.index('expression');
+
+ for (let i = 0; i < terms.length; ++i) {
+ const only = IDBKeyRange.only(terms[i]);
+ promises.push(Database.getAll(dbIndex, only, i, visited, filter, createResult, results));
+ }
+
+ await Promise.all(promises);
+
+ return results;
+ }
+
async findKanji(kanji, titles) {
if (!this.db) {
throw 'Database not initialized';
@@ -464,8 +512,9 @@ class Database {
return summary;
}
- static createTerm(row) {
+ static createTerm(row, index) {
return {
+ index,
expression: row.expression,
reading: row.reading,
definitionTags: dictFieldSplit(row.definitionTags || row.tags || ''),
@@ -478,4 +527,54 @@ class Database {
sequence: typeof row.sequence === 'undefined' ? -1 : row.sequence
};
}
+
+ static createTermMeta(row, index) {
+ return {
+ index,
+ mode: row.mode,
+ data: row.data,
+ dictionary: row.dictionary
+ };
+ }
+
+ static getAll(dbIndex, query, index, visited, filter, createResult, results) {
+ const fn = typeof dbIndex.getAll === 'function' ? Database.getAllFast : Database.getAllUsingCursor;
+ return fn(dbIndex, query, index, visited, filter, createResult, results);
+ }
+
+ static getAllFast(dbIndex, query, index, visited, filter, createResult, results) {
+ return new Promise((resolve, reject) => {
+ const request = dbIndex.getAll(query);
+ request.onerror = (e) => reject(e);
+ request.onsuccess = (e) => {
+ for (const row of e.target.result) {
+ if (filter(row, index) && !visited.hasOwnProperty(row.id)) {
+ visited[row.id] = true;
+ results.push(createResult(row, index));
+ }
+ }
+ resolve();
+ };
+ });
+ }
+
+ static getAllUsingCursor(dbIndex, query, index, visited, filter, createResult, results) {
+ return new Promise((resolve, reject) => {
+ const request = dbIndex.openCursor(query, 'next');
+ request.onerror = (e) => reject(e);
+ request.onsuccess = (e) => {
+ const cursor = e.target.result;
+ if (cursor) {
+ const row = cursor.value;
+ if (filter(row, index) && !visited.hasOwnProperty(row.id)) {
+ visited[row.id] = true;
+ results.push(createResult(row, index));
+ }
+ cursor.continue();
+ } else {
+ resolve();
+ }
+ };
+ });
+ }
}
diff --git a/ext/bg/js/deinflector.js b/ext/bg/js/deinflector.js
index 0abde99d..ad77895c 100644
--- a/ext/bg/js/deinflector.js
+++ b/ext/bg/js/deinflector.js
@@ -17,103 +17,53 @@
*/
-class Deinflection {
- constructor(term, {rules=[], definitions=[], reason=''} = {}) {
- this.term = term;
- this.rules = rules;
- this.definitions = definitions;
- this.reason = reason;
- this.children = [];
+class Deinflector {
+ constructor(reasons) {
+ this.reasons = reasons;
}
- async deinflect(definer, reasons) {
- for (const reason in reasons) {
- for (const variant of reasons[reason]) {
- let accept = this.rules.length === 0;
- if (!accept) {
- for (const rule of this.rules) {
- if (variant.rulesIn.includes(rule)) {
- accept = true;
- break;
+ deinflect(source) {
+ const results = [{
+ source,
+ term: source,
+ rules: [],
+ definitions: [],
+ reasons: []
+ }];
+ for (let i = 0; i < results.length; ++i) {
+ const entry = results[i];
+
+ for (const reason in this.reasons) {
+ for (const variant of this.reasons[reason]) {
+ let accept = entry.rules.length === 0;
+ if (!accept) {
+ for (const rule of entry.rules) {
+ if (variant.rulesIn.includes(rule)) {
+ accept = true;
+ break;
+ }
}
}
- }
- if (!accept || !this.term.endsWith(variant.kanaIn)) {
- continue;
- }
-
- const term = this.term.slice(0, -variant.kanaIn.length) + variant.kanaOut;
- if (term.length === 0) {
- continue;
- }
-
- const child = new Deinflection(term, {reason, rules: variant.rulesOut});
- if (await child.deinflect(definer, reasons)) {
- this.children.push(child);
- }
- }
- }
-
- const definitions = await definer(this.term);
- if (this.rules.length === 0) {
- this.definitions = definitions;
- } else {
- for (const rule of this.rules) {
- for (const definition of definitions) {
- if (definition.rules.includes(rule)) {
- this.definitions.push(definition);
+ if (!accept || !entry.term.endsWith(variant.kanaIn)) {
+ continue;
}
- }
- }
- }
-
- if (this.definitions.length > 0 && this.children.length > 0) {
- const child = new Deinflection(this.term, {rules: this.rules, definitions: this.definitions});
- this.children.push(child);
- }
- return this.definitions.length > 0 || this.children.length > 0;
- }
-
- gather() {
- if (this.children.length === 0) {
- return [{
- source: this.term,
- rules: this.rules,
- definitions: this.definitions,
- reasons: this.reason.length > 0 ? [this.reason] : []
- }];
- }
+ const term = entry.term.slice(0, -variant.kanaIn.length) + variant.kanaOut;
+ if (term.length === 0) {
+ continue;
+ }
- const results = [];
- for (const child of this.children) {
- for (const result of child.gather()) {
- if (this.reason.length > 0) {
- result.reasons.push(this.reason);
+ results.push({
+ source,
+ term,
+ rules: variant.rulesOut,
+ definitions: [],
+ reasons: [reason, ...entry.reasons]
+ });
}
-
- result.source = this.term;
- results.push(result);
}
}
-
return results;
}
}
-
-
-class Deinflector {
- constructor(reasons) {
- this.reasons = reasons;
- }
-
- async deinflect(term, definer) {
- const node = new Deinflection(term);
- if (await node.deinflect(definer, this.reasons)) {
- return node.gather();
- } else {
- return [];
- }
- }
-}
diff --git a/ext/bg/js/translator.js b/ext/bg/js/translator.js
index 21f40fe9..4eb4b03a 100644
--- a/ext/bg/js/translator.js
+++ b/ext/bg/js/translator.js
@@ -41,9 +41,7 @@ class Translator {
const {length, definitions} = await this.findTerms(text, dictionaries, alphanumeric);
const definitionsGrouped = dictTermsGroup(definitions, dictionaries);
- for (const definition of definitionsGrouped) {
- await this.buildTermFrequencies(definition, titles);
- }
+ await this.buildTermFrequencies(definitionsGrouped, titles);
if (options.general.compactTags) {
for (const definition of definitionsGrouped) {
@@ -147,9 +145,7 @@ class Translator {
definitionsMerged.push(groupedDefinition);
}
- for (const definition of definitionsMerged) {
- await this.buildTermFrequencies(definition, titles);
- }
+ await this.buildTermFrequencies(definitionsMerged, titles);
if (options.general.compactTags) {
for (const definition of definitionsMerged) {
@@ -164,9 +160,7 @@ class Translator {
const titles = Object.keys(dictionaries);
const {length, definitions} = await this.findTerms(text, dictionaries, alphanumeric);
- for (const definition of definitions) {
- await this.buildTermFrequencies(definition, titles);
- }
+ await this.buildTermFrequencies(definitions, titles);
return {length, definitions};
}
@@ -179,13 +173,9 @@ class Translator {
}
}
- const cache = {};
- const titles = Object.keys(dictionaries);
- let deinflections = await this.findTermDeinflections(text, titles, cache);
const textHiragana = jpKatakanaToHiragana(text);
- if (text !== textHiragana) {
- deinflections.push(...await this.findTermDeinflections(textHiragana, titles, cache));
- }
+ const titles = Object.keys(dictionaries);
+ const deinflections = await this.findTermDeinflections(text, textHiragana, titles);
let definitions = [];
for (const deinflection of deinflections) {
@@ -221,24 +211,60 @@ class Translator {
return {length, definitions};
}
- async findTermDeinflections(text, titles, cache) {
- const definer = async term => {
- if (cache.hasOwnProperty(term)) {
- return cache[term];
- } else {
- return cache[term] = await this.database.findTerms(term, titles);
- }
- };
+ async findTermDeinflections(text, text2, titles) {
+ const deinflections = (text === text2 ? this.getDeinflections(text) : this.getDeinflections2(text, text2));
+
+ if (deinflections.length === 0) {
+ return [];
+ }
+
+ const definitions = await this.database.findTermsBulk(deinflections.map(e => e.term), titles);
+
+ for (const d of definitions) {
+ deinflections[d.index].definitions.push(d);
+ }
+
+ return deinflections.filter(e => e.definitions.length > 0);
+ }
+
+ getDeinflections(text) {
+ const deinflections = [];
+ const deinflectionsKeys = {};
- let deinflections = [];
for (let i = text.length; i > 0; --i) {
const textSlice = text.slice(0, i);
- deinflections.push(...await this.deinflector.deinflect(textSlice, definer));
+ Translator.addUniqueDeinflections(this.deinflector.deinflect(textSlice), deinflections, deinflectionsKeys);
}
return deinflections;
}
+ getDeinflections2(text, text2) {
+ const deinflections = [];
+ const deinflectionsKeys = {};
+
+ for (let i = text.length; i > 0; --i) {
+ const textSlice = text.slice(0, i);
+ const text2Slice = text2.slice(0, i);
+ Translator.addUniqueDeinflections(this.deinflector.deinflect(textSlice), deinflections, deinflectionsKeys);
+ if (textSlice !== text2Slice) {
+ Translator.addUniqueDeinflections(this.deinflector.deinflect(text2Slice), deinflections, deinflectionsKeys);
+ }
+ }
+
+ return deinflections;
+ }
+
+ static addUniqueDeinflections(newValues, deinflections, deinflectionsKeys) {
+ for (const value of newValues) {
+ const key = value.term;
+ if (!deinflectionsKeys.hasOwnProperty(key)) {
+ deinflections.push(value);
+ deinflectionsKeys[key] = true;
+ }
+ }
+ }
+
async findKanji(text, dictionaries) {
let definitions = [];
const processed = {};
@@ -272,24 +298,51 @@ class Translator {
return definitions;
}
- async buildTermFrequencies(definition, titles) {
- let terms = [];
- if (definition.expressions) {
- terms.push(...definition.expressions);
- } else {
- terms.push(definition);
+ async buildTermFrequencies(definitions, titles) {
+ const terms = [];
+ for (const definition of definitions) {
+ if (definition.expressions) {
+ terms.push(...definition.expressions);
+ } else {
+ terms.push(definition);
+ }
+ }
+
+ if (terms.length === 0) {
+ return;
}
- for (const term of terms) {
+ // Create mapping of unique terms
+ const expressionsUnique = [];
+ const termsUnique = [];
+ const termsUniqueMap = {};
+ for (let i = 0, ii = terms.length; i < ii; ++i) {
+ const term = terms[i];
+ const expression = term.expression;
term.frequencies = [];
- for (const meta of await this.database.findTermMeta(term.expression, titles)) {
- if (meta.mode === 'freq') {
- term.frequencies.push({
- expression: meta.expression,
- frequency: meta.data,
- dictionary: meta.dictionary
- });
- }
+
+ if (termsUniqueMap.hasOwnProperty(expression)) {
+ termsUniqueMap[expression].push(term);
+ } else {
+ const termList = [term];
+ expressionsUnique.push(expression);
+ termsUnique.push(termList);
+ termsUniqueMap[expression] = termList;
+ }
+ }
+
+ const metas = await this.database.findTermMetaBulk(expressionsUnique, titles);
+ for (const meta of metas) {
+ if (meta.mode !== 'freq') {
+ continue;
+ }
+
+ for (const term of termsUnique[meta.index]) {
+ term.frequencies.push({
+ expression: meta.expression,
+ frequency: meta.data,
+ dictionary: meta.dictionary
+ });
}
}
}