java 用于匹配多行嵌套注释的正则表达式

Question

我正在尝试编写一个 java 正则表达式来从我的代码中删除所有注释，我有一些非常复杂的嵌套注释，到目前为止我只能匹配内部注释，在这里是我注释的一个例子

@annotationA(property1 = "",
        property2 = "",
        property3 = "",
        property4 = "",
        property5 = "")
public class ClassA {

    @annotationB(property1 = @annotationA(property5 = "anyChar",
            property6 = false,
            property1 = "anyChar",
            property2 = "anyChar",
            property3 = "anyChar",
            property4 = "anyChar"),
            params = { @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")),
                    @annotationC(property7 = @annotationA(property5 = "anyChar"), property8 = @annotationA(property5 = "anyChar")), },
            returnType = @annotationA(property5 = "anyChar"))
    //some methode

}

这是我的正则表达式（未转义）：

@\w+\([\n\w\s=\-"\@,.*:// {\+ }\.;+]+\)

Answer 1

如果您尝试删除注释，并且您有一个可以找到非嵌套注释的正则表达式，那么您基本上就完成了。除非它是一项对性能敏感的任务，否则您可以一遍又一遍地迭代该正则表达式，每次删除它匹配的内容。删除内部注释后，将不再需要处理嵌套注释。当正则表达式无法匹配任何内容时结束进程，您就完成了！

您的示例（在 Notepad++ 中）用了 3 个 replaceAlls 来完全清理，看起来可以接受。

java 用于匹配多行嵌套注释的正则表达式

java regex for matching multiline nested annotation

java

regex

annotations