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node-pinyin

v0.2.3

Published

汉语拼音转换工具。

Downloads

1,696

Readme

汉字拼音转换工具

npm npm Travis

本工具fork自https://github.com/hotoo/pinyin,原库以MIT协议开源,本库也以MIT协议开源。

功能

将汉字转为拼音,支持多音字。

安装

via npm:

npm install node-pinyin

用法

var pinyin = require("node-pinyin");

console.log(pinyin("重心"));    // [ [ 'zhòng' ], [ 'xīn' ] ]
console.log(pinyin("重心", {
  heteronym: true               // 启用多音字模式
}));                            // [ [ 'zhòng', 'chóng' ], [ 'xīn' ] ]

命令行:

$ pinyin 重心
zhòng xīn
$ pinyin -h

API

方法 <Array> pinyin(words[, options])

将传入的中文字符串(words)转换成拼音符号串。

options 是可选的,打开多音字选项和设定返回风格。

返回二维数组,第一维每个数组项位置对应每个中文字符串位置。 第二维是各个汉字的读音列表,多音字会有多个拼音项。

参数 <Boolean> options.heteronym

是否启用多音字模式,默认关闭。

关闭多音字模式时,返回每个汉字第一个匹配的拼音。

启用多音字模式时,返回多音字的所有拼音列表。

参数 <String> options.style

指定拼音 风格。可以通过以下几种属性值进行指定。

normal

普通风格,即不带音标。

如:pin yin

tone

声调风格,拼音声调在韵母第一个字母上。

注:这是默认的风格。

如:pīn yīn

toneWithNumber

声调风格,即拼音声调在各个拼音之后,用数字 [0-4] 进行表示。

如:pin1 yin1

initials

声母风格,只返回各个拼音的声母部分。

如:中国 的拼音 zh g

例外,对于只有韵母的汉字(如『爱、啊』等),会先转成不带音标的普通风格。

firstLetter

首字母风格,只返回拼音的首字母部分。

如:p y

Test

npm test

性能

源库由于启用了分词和词组匹配,导致内存占用极大,运算时间长,本库做了精简。

/benchmark下可运行性能测试脚本,以short.js为例,在MacbookPro(2.5 GHz Intel Core i5 / 8 GB 1600 MHz DDR3)上:

源库输出

pinyin: 1076ms
146112512

本库输出

# 0.2.0
pinyin: 12ms
1150976

# 0.1.0
pinyin: 131ms
31199232

项目 | 源库 | 本库 | 百分比 ----|------|-----|----- 运算时间 | 1076ms | 12ms | 1.11% 内存占用 | 139.3M | 1.1M | 0.79%

Q&A

本库与fork源库有哪些差异

  • 源库支持同时支持在Node和浏览器端,本库只考虑Node环境
  • 源库支持基于词组的精确转换,如重心中的,不会得到chong这个读音,本库去掉了这个特性
  • 源库支持简单的简繁转换,本库不支持
  • 源库内存占用大,运算时间长,本库内存和运算时间均有大幅优化

更新日志

v0.2.3 (2016-04-05)

  • 修复极端情况下无法读取到拼音的bug(“脑”)

v0.2.2 (2015-04-28)

  • 修复极端情况下无法读取到拼音的bug(“昊”)

v0.2.1 (2015-01-23)

  • 调整“的”的拼音,优先返回“de”

v0.2.0 (2015-01-21)

  • 更新数据存储和读取机制,大幅减少运算时间(12ms)和内存占用(1.1M)
  • 恢复代码风格选项

v0.1.0 (2014-12-17)

  • Fork初始发布
  • 大幅减少运算时间(131ms)和内存占用(29.7M)
  • 去掉源库分词特性
  • 去掉词语库
  • 去掉代码风格选项