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malta-slides/node_modules/speech-rule-engine/mjs/audio/punctuation_renderer.js

51 lines
1.5 KiB
JavaScript

import * as EngineConst from '../common/engine_const.js';
import { AbstractAudioRenderer } from './abstract_audio_renderer.js';
import * as AudioUtil from './audio_util.js';
export class PunctuationRenderer extends AbstractAudioRenderer {
markup(descrs) {
const markup = AudioUtil.personalityMarkup(descrs);
let str = '';
let pause = null;
let span = false;
for (let i = 0, descr; (descr = markup[i]); i++) {
if (AudioUtil.isMarkupElement(descr)) {
continue;
}
if (AudioUtil.isPauseElement(descr)) {
pause = descr;
continue;
}
if (pause) {
str += this.pause(pause[EngineConst.personalityProps.PAUSE]);
pause = null;
}
str += (span ? this.separator : '') + this.merge(descr.span);
span = true;
}
return str;
}
pause(pause) {
let newPause;
if (typeof pause === 'number') {
if (pause <= 250) {
newPause = 'short';
}
else if (pause <= 500) {
newPause = 'medium';
}
else {
newPause = 'long';
}
}
else {
newPause = pause;
}
return PunctuationRenderer.PAUSE_PUNCTUATION.get(newPause) || '';
}
}
PunctuationRenderer.PAUSE_PUNCTUATION = new Map([
['short', ','],
['medium', ';'],
['long', '.']
]);