arpabet-and-ipa-convertor-ts/dist/to-phonetic-alphabets.js

Typescript code to convert between Arpabet and IPA phonetic transcriptions

"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.toEnglishPhoneticAlphabet = exports.toAmericanPhoneticAlphabet = exports.toIPA = void 0;
var phonemes_1 = require("./phonemes");
var phoneme_error_1 = require("./phoneme-error");
var syllable_1 = require("./model/syllable");
var word_1 = require("./model/word");
var stress_1 = require("./model/stress");
var arpabetTree = {};
phonemes_1.vowels.forEach(function (o) {
    arpabetTree[o.arpabet] = o;
});
phonemes_1.consonants.forEach(function (o) {
    arpabetTree[o.arpabet] = o;
});
var stressDict = (_a = {},
    _a[stress_1.Stress.No.type] = stress_1.Stress.No,
    _a[stress_1.Stress.Primary.type] = stress_1.Stress.Primary,
    _a[stress_1.Stress.Secondary.type] = stress_1.Stress.Secondary,
    _a);
function toWord(arpabet) {
    if (!arpabet) {
        return null;
    }
    var before;
    var lastNum;
    var phoneme;
    var stress;
    var arpabetPhonemes = arpabet.split(' ');
    var word = new word_1.Word();
    var syllable = new syllable_1.Syllable();
    for (var _i = 0, arpabetPhonemes_1 = arpabetPhonemes; _i < arpabetPhonemes_1.length; _i++) {
        var arphabetPhoneme = arpabetPhonemes_1[_i];
        phoneme = arpabetTree[arphabetPhoneme];
        if (phoneme) {
            syllable.addPhoneme(phoneme);
            if (phoneme.isVowel) {
                word.addSyllable(syllable);
                syllable = new syllable_1.Syllable();
            }
        }
        else {
            lastNum = arphabetPhoneme.slice(-1)[0];
            if (isNaN(parseInt(lastNum))) {
                throw new phoneme_error_1.PhonemeError(
                // 匹配不到合适的音标
                arphabetPhoneme + " does not match the appropriate phonetic transcription");
            }
            stress = stressDict[lastNum];
            before = arphabetPhoneme.slice(0, -1);
            phoneme = arpabetTree[before];
            if (phoneme) {
                syllable.addPhoneme(phoneme);
                if (stress) {
                    syllable.stress = stress;
                }
                else {
                    throw new phoneme_error_1.PhonemeError(
                    // 的重音标识不对，标记成了
                    "The accent mark of " + before + " is wrong, it is marked as " + lastNum);
                }
                if (phoneme.isVowel) {
                    word.addSyllable(syllable);
                    syllable = new syllable_1.Syllable();
                }
                else {
                    throw new phoneme_error_1.PhonemeError(
                    // ${arphabe_phoneme} 重音标识位置不对，当前 ${before} 不是元音
                    arphabetPhoneme + " The accent mark is in the wrong position, the current " + before + " is not a vowel");
                }
            }
            else {
                throw new phoneme_error_1.PhonemeError(
                // ${before} 匹配不到合适的音标
                before + " does not match the appropriate phonetic transcription");
            }
        }
    }
    word.addSyllable(syllable);
    return word;
}
function toIPA(arpabet) {
    // 转换成国际音标
    var word = toWord(arpabet);
    if (!word) {
        return null;
    }
    return word.toIPA();
}
exports.toIPA = toIPA;
function toAmericanPhoneticAlphabet(arpabet) {
    // 转换成美音
    var word = toWord(arpabet);
    if (!word) {
        return null;
    }
    return word.toAmericanPhoneticAlphabet();
}
exports.toAmericanPhoneticAlphabet = toAmericanPhoneticAlphabet;
function toEnglishPhoneticAlphabet(arpabet) {
    /// 转换成英音
    var word = toWord(arpabet);
    if (!word) {
        return null;
    }
    return word.toEnglishPhoneticAlphabet();
}
exports.toEnglishPhoneticAlphabet = toEnglishPhoneticAlphabet;