Mecab refactor (#1357)
* Use private variables * Use local variables * Remove onError * Use private functions * Move results parsing * Set up disconnect observation * Add _clearPort * Update API * Rename * Fix iterator * Update parseText invocation * Update parseText format * Reorganize * Update implementation and docs * Fix some port setup issues
This commit is contained in:
toasted-nutbread
GitHub
parent
7b28c2c532
commit
69e8addb47
|
|
@ -877,11 +877,7 @@ class Backend {
|
|||
this._anki.server = options.anki.server;
|
||||
this._anki.enabled = options.anki.enable;
|
||||
|
||||
if (options.parsing.enableMecabParser) {
|
||||
this._mecab.startListener();
|
||||
} else {
|
||||
this._mecab.stopListener();
|
||||
}
|
||||
this._mecab.setEnabled(options.parsing.enableMecabParser);
|
||||
|
||||
if (options.clipboard.enableBackgroundMonitor) {
|
||||
this._clipboardMonitor.start();
|
||||
|
|
@ -988,12 +984,19 @@ class Backend {
|
|||
async _textParseMecab(text, options) {
|
||||
const jp = this._japaneseUtil;
|
||||
const {parsing: {readingMode}} = options;
|
||||
|
||||
let parseTextResults;
|
||||
try {
|
||||
parseTextResults = await this._mecab.parseText(text);
|
||||
} catch (e) {
|
||||
return [];
|
||||
}
|
||||
|
||||
const results = [];
|
||||
const rawResults = await this._mecab.parseText(text);
|
||||
for (const [mecabName, parsedLines] of Object.entries(rawResults)) {
|
||||
for (const {name, lines} of parseTextResults) {
|
||||
const result = [];
|
||||
for (const parsedLine of parsedLines) {
|
||||
for (const {expression, reading, source} of parsedLine) {
|
||||
for (const line of lines) {
|
||||
for (const {expression, reading, source} of line) {
|
||||
const term = [];
|
||||
for (const {text: text2, furigana} of jp.distributeFuriganaInflected(
|
||||
expression.length > 0 ? expression : source,
|
||||
|
|
@ -1007,7 +1010,7 @@ class Backend {
|
|||
}
|
||||
result.push([{text: '\n', reading: ''}]);
|
||||
}
|
||||
results.push([mecabName, result]);
|
||||
results.push([name, result]);
|
||||
}
|
||||
return results;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -15,107 +15,183 @@
|
|||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
* This class is used to connect Yomichan to a native component that is
|
||||
* used to parse text into individual terms.
|
||||
*/
|
||||
class Mecab {
|
||||
/**
|
||||
* Creates a new instance of the class.
|
||||
*/
|
||||
constructor() {
|
||||
this.port = null;
|
||||
this.listeners = new Map();
|
||||
this.sequence = 0;
|
||||
this._port = null;
|
||||
this._sequence = 0;
|
||||
this._invocations = new Map();
|
||||
this._eventListeners = new EventListenerCollection();
|
||||
this._timeout = 5000;
|
||||
this._version = 1;
|
||||
this._remoteVersion = null;
|
||||
this._enabled = false;
|
||||
this._setupPortPromise = null;
|
||||
}
|
||||
|
||||
onError(error) {
|
||||
yomichan.logError(error);
|
||||
/**
|
||||
* Returns whether or not the component is enabled.
|
||||
*/
|
||||
isEnabled() {
|
||||
return this._enabled;
|
||||
}
|
||||
|
||||
async checkVersion() {
|
||||
try {
|
||||
const {version} = await this.invoke('get_version', {});
|
||||
if (version !== Mecab.version) {
|
||||
this.stopListener();
|
||||
throw new Error(`Unsupported MeCab native messenger version ${version}. Yomichan supports version ${Mecab.version}.`);
|
||||
}
|
||||
} catch (error) {
|
||||
this.onError(error);
|
||||
/**
|
||||
* Changes whether or not the component connection is enabled.
|
||||
* @param enabled A boolean indicating whether or not the component should be enabled.
|
||||
*/
|
||||
setEnabled(enabled) {
|
||||
this._enabled = !!enabled;
|
||||
if (!this._enabled && this._port !== null) {
|
||||
this._clearPort();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the version of the MeCab component.
|
||||
* @returns The version of the MeCab component, or `null` if the component was not found.
|
||||
*/
|
||||
async getVersion() {
|
||||
try {
|
||||
await this._setupPort();
|
||||
} catch (e) {
|
||||
// NOP
|
||||
}
|
||||
return this._remoteVersion;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parses a string of Japanese text into arrays of lines and terms.
|
||||
*
|
||||
* Return value format:
|
||||
* ```js
|
||||
* [
|
||||
* {
|
||||
* name: (string),
|
||||
* lines: [
|
||||
* {expression: (string), reading: (string), source: (string)},
|
||||
* ...
|
||||
* ]
|
||||
* },
|
||||
* ...
|
||||
* ]
|
||||
* ```
|
||||
* @param text The string to parse.
|
||||
* @returns A collection of parsing results of the text.
|
||||
*/
|
||||
async parseText(text) {
|
||||
const rawResults = await this.invoke('parse_text', {text});
|
||||
// {
|
||||
// 'mecab-name': [
|
||||
// // line1
|
||||
// [
|
||||
// {str expression: 'expression', str reading: 'reading', str source: 'source'},
|
||||
// {str expression: 'expression2', str reading: 'reading2', str source: 'source2'}
|
||||
// ],
|
||||
// line2,
|
||||
// ...
|
||||
// ],
|
||||
// 'mecab-name2': [...]
|
||||
// }
|
||||
const results = {};
|
||||
for (const [mecabName, parsedLines] of Object.entries(rawResults)) {
|
||||
const result = [];
|
||||
for (const parsedLine of parsedLines) {
|
||||
const line = [];
|
||||
for (const {expression, reading, source} of parsedLine) {
|
||||
line.push({
|
||||
expression: expression || '',
|
||||
reading: reading || '',
|
||||
source: source || ''
|
||||
});
|
||||
}
|
||||
result.push(line);
|
||||
await this._setupPort();
|
||||
const rawResults = await this._invoke('parse_text', {text});
|
||||
return this._convertParseTextResults(rawResults);
|
||||
}
|
||||
|
||||
// Private
|
||||
|
||||
_onMessage({sequence, data}) {
|
||||
const invocation = this._invocations.get(sequence);
|
||||
if (typeof invocation === 'undefined') { return; }
|
||||
|
||||
const {resolve, timer} = invocation;
|
||||
clearTimeout(timer);
|
||||
resolve(data);
|
||||
this._invocations.delete(sequence);
|
||||
}
|
||||
|
||||
_onDisconnect() {
|
||||
if (this._port === null) { return; }
|
||||
const e = chrome.runtime.lastError;
|
||||
const error = new Error(e ? e.message : 'MeCab disconnected');
|
||||
for (const {reject, timer} of this._invocations.values()) {
|
||||
clearTimeout(timer);
|
||||
reject(error);
|
||||
}
|
||||
this._clearPort();
|
||||
}
|
||||
|
||||
_invoke(action, params) {
|
||||
return new Promise((resolve, reject) => {
|
||||
if (this._port === null) {
|
||||
reject(new Error('Port disconnected'));
|
||||
}
|
||||
results[mecabName] = result;
|
||||
|
||||
const sequence = this._sequence++;
|
||||
|
||||
const timer = setTimeout(() => {
|
||||
this._invocations.delete(sequence);
|
||||
reject(new Error(`MeCab invoke timed out after ${this._timeout}ms`));
|
||||
}, this._timeout);
|
||||
|
||||
this._invocations.set(sequence, {resolve, reject, timer}, this._timeout);
|
||||
|
||||
this._port.postMessage({action, params, sequence});
|
||||
});
|
||||
}
|
||||
|
||||
_convertParseTextResults(rawResults) {
|
||||
const results = [];
|
||||
for (const [name, rawLines] of Object.entries(rawResults)) {
|
||||
const lines = [];
|
||||
for (const rawLine of rawLines) {
|
||||
const line = [];
|
||||
for (let {expression, reading, source} of rawLine) {
|
||||
if (typeof expression !== 'string') { expression = ''; }
|
||||
if (typeof reading !== 'string') { reading = ''; }
|
||||
if (typeof source !== 'string') { source = ''; }
|
||||
line.push({expression, reading, source});
|
||||
}
|
||||
lines.push(line);
|
||||
}
|
||||
results.push({name, lines});
|
||||
}
|
||||
return results;
|
||||
}
|
||||
|
||||
startListener() {
|
||||
if (this.port !== null) { return; }
|
||||
this.port = chrome.runtime.connectNative('yomichan_mecab');
|
||||
this.port.onMessage.addListener(this.onNativeMessage.bind(this));
|
||||
this.checkVersion();
|
||||
}
|
||||
|
||||
stopListener() {
|
||||
if (this.port === null) { return; }
|
||||
this.port.disconnect();
|
||||
this.port = null;
|
||||
this.listeners.clear();
|
||||
this.sequence = 0;
|
||||
}
|
||||
|
||||
onNativeMessage({sequence, data}) {
|
||||
const listener = this.listeners.get(sequence);
|
||||
if (typeof listener === 'undefined') { return; }
|
||||
|
||||
const {callback, timer} = listener;
|
||||
clearTimeout(timer);
|
||||
callback(data);
|
||||
this.listeners.delete(sequence);
|
||||
}
|
||||
|
||||
invoke(action, params) {
|
||||
if (this.port === null) {
|
||||
return Promise.resolve({});
|
||||
async _setupPort() {
|
||||
if (!this._enabled) {
|
||||
throw new Error('MeCab not enabled');
|
||||
}
|
||||
return new Promise((resolve, reject) => {
|
||||
const sequence = this.sequence++;
|
||||
if (this._setupPortPromise === null) {
|
||||
this._setupPortPromise = this._setupPort2();
|
||||
}
|
||||
try {
|
||||
await this._setupPortPromise;
|
||||
} catch (e) {
|
||||
throw new Error(e.message);
|
||||
}
|
||||
}
|
||||
|
||||
this.listeners.set(sequence, {
|
||||
callback: resolve,
|
||||
timer: setTimeout(() => {
|
||||
this.listeners.delete(sequence);
|
||||
reject(new Error(`Mecab invoke timed out in ${Mecab.timeout} ms`));
|
||||
}, Mecab.timeout)
|
||||
});
|
||||
async _setupPort2() {
|
||||
const port = chrome.runtime.connectNative('yomichan_mecab');
|
||||
this._eventListeners.addListener(port.onMessage, this._onMessage.bind(this));
|
||||
this._eventListeners.addListener(port.onDisconnect, this._onDisconnect.bind(this));
|
||||
this._port = port;
|
||||
|
||||
this.port.postMessage({action, params, sequence});
|
||||
});
|
||||
try {
|
||||
const {version} = await this._invoke('get_version', {});
|
||||
this._remoteVersion = version;
|
||||
if (version !== this._version) {
|
||||
throw new Error(`Unsupported MeCab native messenger version ${version}. Yomichan supports version ${this._version}.`);
|
||||
}
|
||||
} catch (e) {
|
||||
if (this._port === port) {
|
||||
this._clearPort();
|
||||
}
|
||||
throw e;
|
||||
}
|
||||
}
|
||||
|
||||
_clearPort() {
|
||||
this._port.disconnect();
|
||||
this._port = null;
|
||||
this._invocations.clear();
|
||||
this._eventListeners.removeAllEventListeners();
|
||||
this._sequence = 0;
|
||||
this._setupPortPromise = null;
|
||||
}
|
||||
}
|
||||
|
||||
Mecab.timeout = 5000;
|
||||
Mecab.version = 1;
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user