做一个小的组件来快速提取文本里的匹配内容，内容一多几万行的话，速度就慢了很多，有没有好方法（Text search algorithms）？
参考
iOS search 和 Fuzzy search
Swift Algorithm Club: Boyer Moore String Search Algorithm
A Simple, Smart Search Algorithm for iOS in Swift
A Fast Fuzzy Search Implementation
全局搜索
这个是多组key word的查找Needle in a Haystack: A Nifty Large-scale Text Search Algorithm Tutorial
Full-text search
SEARCHING LARGE TEXT COLLECTIONS
String Search Algorithms for Large Texts with Java