cjk-readings/lib/generatePinyin.js

Web service that generates readings for chinese characters.

"use strict";
/**
 * Parts of this file are based on:
 * - https://github.com/hotoo/pinyin/blob/master/lib/index.js
 * - https://github.com/hotoo/pinyin/blob/master/lib/pinyin.js
 * Copyright 闲耘 <hotoo.cn@gmail.com>
 * Used under MIT License
 */
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var nodejieba_1 = __importDefault(require("nodejieba"));
var dict_zi_1 = __importDefault(require("pinyin/data/dict-zi"));
var phrases_dict_1 = __importDefault(require("pinyin/data/phrases-dict"));
function segmentIntoPhrases(text) {
    return nodejieba_1.default.cutSmall(text, 4);
}
function convertCharacter(char) {
    if (char.length !== 1) {
        return convertCharacter(char.charAt(0));
    }
    var charCode = char.charCodeAt(0);
    if (!dict_zi_1.default[charCode]) {
        return [char, []];
    }
    return [char, dict_zi_1.default[charCode].split(',')];
}
function convertPhrase(phrase) {
    var parts = [];
    if (phrases_dict_1.default.hasOwnProperty(phrase)) {
        parts = parts.concat(phrases_dict_1.default[phrase].map(function (readings, i) { return [phrase[i], readings]; }));
    }
    else {
        parts = parts.concat(Array.from(phrase).map(convertCharacter));
    }
    return parts;
}
function convertText(text) {
    var phrases = segmentIntoPhrases(text);
    var parts = [];
    var readingless = '';
    for (var i = 0; i < phrases.length; i++) {
        var phraseOrCharacter = phrases[i];
        var firstCharCode = phraseOrCharacter.charCodeAt(0);
        if (dict_zi_1.default[firstCharCode]) {
            // ends of characters without readings.
            if (readingless.length > 0) {
                parts.push([readingless, []]);
                readingless = '';
            }
            if (phraseOrCharacter.length === 1) {
                parts = parts.concat(convertCharacter(phraseOrCharacter));
            }
            else {
                parts = parts.concat(convertPhrase(phraseOrCharacter));
            }
        }
        else {
            readingless += phraseOrCharacter;
        }
    }
    // finish off with any readingless characters
    if (readingless.length > 0) {
        parts.push([readingless, []]);
    }
    return parts;
}
function generatePinyin(text) {
    return convertText(text);
}
exports.generatePinyin = generatePinyin;
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