本文介绍了番石榴:Splitter并考虑逃离?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我对番石榴的分裂可能性感兴趣:
I am interested in the Splitting possibility of Guava:
Splitter.on("|").split("foo|bar|baz");
// => "foo", "bar", "baz"
这是正常的。
如果我想拆分|现在怎么办?但不在[和]之间:
What now if I want to split on "|" but not between "[" and "]":
Splitter.on(something).split("foo|ba[r|ba]z");
// => "foo", "ba[r|ba]z"
根据我的理解,它不是可以在番石榴中定义这个东西。
From what I understood, it is not possible to define this "something" in Guava.
我发现了这个:
。这是否相关?
I found this:Issue 799: Add google escape library to Guava. Is this related ?
推荐答案
处理此问题的正确方法是创建解析器。现在真的很简单,只需使用解析器组合器,例如JParsec。你会得到这样的结果:
The proper way to deal with this is to make a parser. It's really easy nowadays, just use a parser combinator, such as JParsec. You'll get something like this:
class ParserFactory {
Parser escapedSequence() {
return Parsers.between(Scanners.string("["),
Scanners.anyCharacterButNot("]"), Scanners.string("]"));
}
Parser chunk() {
return Parsers.or(escapedSequence(), Scanners.anyCharacterButNot("|"));
}
Parsers wholeThing() {
return Parsers.separatedBy(chunk().plus(), Scanners.string("|"));
}
}
这篇关于番石榴:Splitter并考虑逃离?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!