java nio否定glob模式 [英] java nio negate a glob pattern

问题描述

fileSystem.getPathMatcher("glob:${pattern}").matches(path.getFileName())}

我要匹配所有不匹配"ts.*"的内容. java中的glob的语法是什么? (在有人建议我改用正则表达式之前，我必须使用glob)

I want to match everything that DOES NOT match "ts.*". What's the syntax for that for a glob in java? (Before anyone suggests I use regex instead, I am required to use a glob)

推荐答案

如果我们查看

If we look at the official documentation we find that the only way how to negate something is by using bracket expressions.

如果[后面的字符是!！然后它用于求反，因此[！a-c]匹配除"a"，"b"或"c"之外的任何字符.

If the character after the [ is a ! then it is used for negation so [!a-c] matches any character except "a", "b", or "c".

因此，在您的情况下，模式可能类似于{[!t]*,t[!s]*,ts[!.]*}.

So in your case the pattern could be something like {[!t]*,t[!s]*,ts[!.]*}.

像[!t][!s][!.]*这样的模式将不起作用，因为它也不会匹配以as.开头的文件.

A pattern like [!t][!s][!.]* would not work, because it would also not match files beginning with, e.g., as..

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