Java通过编译带有标志的Pattern将regex与自定义行为一起使用
示例
阿Pattern可以用标志进行编译,如果正则表达式被用作文字String,使用内联改性剂:
Pattern pattern = Pattern.compile("foo.",Pattern.CASE_INSENSITIVE| Pattern.DOTALL); pattern.matcher("FOO\n").matches(); //是真的。 /* Had the regex not been compiled case insensitively and singlelined, * it would fail because FOO does not match /foo/ and \n (newline) * does not match /./. */ Pattern anotherPattern = Pattern.compile("(?si)foo"); anotherPattern.matcher("FOO\n").matches(); //是真的。 "foOt".replaceAll("(?si)foo", "ca"); // Returns "cat".