如何编写Java正则表达式来标识Java函数？

Question

I want to identify the java methods, just like string public native void TextTransArgs(int i, boolean flag, String s) . Also, I want to extract the method name, type, return-type and the args-list type(s).So how to write the regular expression?

public static void main(String[] args) { 
    Pattern pattern = Pattern.compile("(public|private|protected).*(?<=\\()[^\\)]+)");
    Matcher matcher = pattern.matcher("public native void TextTransArgs(int i, boolean flag, String s)");
    if(matcher.find()){
        System.out.println(matcher.group(1));
        System.out.println(matcher.group(2));
        ...
    } 
} 

Answer 1

this is known as defining grammar, its better to use any grammar like ANTLR. i'ld recommend to see the ANTLR structure first.OR first define a class based on Lexical analysis structure. HTH