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string-tools's Introduction

简介

java字符串处理工具集,目前仅支持某些中文的繁体<->简体的转换和cityhash实现。其中繁简对应关系收录在字典文件,必要时可以自行扩展;cityhash的实现结果与官方c版本保持一致,自动适配系统大小端。

内部实现原理

繁体<->简体的转换

内部使用trie实现,处理效率比较高,时间复杂度是O(n*h),n是字符串长度,h是字典树高度。

cityhash

  • 完全移植官方的c版本,运行结果与官方版本完全相同,自动适配系统大小端。我们针对hash64方法测试2-6k长度的数据共计1200万,与c版本相比无diff
  • 我们也发现github上已经存在https://github.com/tamtam180/CityHash-For-Java实现,之前我们也用这个版本,但我们发现其运行结果与官方的c版本的运行结果有很大的不同。

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Contributors

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