Java：从字节数组中删除连续的零段 [英] Java: remove continious segment of zeros from byte array

问题描述

例如，假设我想从数组中删除0个长度大于3个字节的所有连续段

For example, let's say I want to delete from the array all continuous segments of 0's longer than 3 bytes

byte a[] = {1,2,3,0,1,2,3,0,0,0,0,4};
byte r[] = magic(a);
System.out.println(r);

结果

{1,2,3,0,1,2,3,4}

我想做一些像Java中的正则表达式，但是在字节数组而不是字符串上。

I want to do something like a regular expression in Java, but on a byte array instead of a String.

是否有一些东西可以帮助我内置（或者是有一个很好的第三方工具），还是我需要从头开始工作？

Is there something that can help me built-in (or is there a good third party tool), or do I need to work from scratch?

字符串是UTF-16，所以来回转换不是一个好主意？至少它浪费了大量的开销......对吗？

Strings are UTF-16, so converting back and forth isn't a good idea? At least it's a lot of wasted overhead ... right?

推荐答案

正则表达式不是工作的工具，你会改为需要从头开始实施

regex is not the tool for the job, you will instead need to implement that from scratch

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