获取函数的内容（在花括号之间）

Question

I have a class with "n" complex functions like this:

public class Foo {
    public String getSmt(String param, Foo foo) {
        try {
            if (smtIsTrue()) {
                Thread mThread = new Thread(new Runnable(){
                    @Override
                    public void run() {
                        // Here I do something
                    }
                }).start();
            } else if (other()) {
                if (isExisted()) {
                    execute();
                }
            }
        } catch (Exception e) {
            throw new Exception(e.getMessage());
        } finally {
            doSmt();
        }
    }


    public String otherGetSmt(String param, Foo foo) {
        try {
            if (smtIsTrue()) {
                Thread mThread = new Thread(new Runnable(){
                    @Override
                    public void run() {
                        // Here I do something
                    }
                }).start();
            } else if (other()) {
                if (isExisted()) {
                    execute();
                }
            }
        } catch (Exception e) {
            throw new Exception(e.getMessage());
        } finally {
            doSmt();
        }
    }
}

I would like to get content of two function by using Regex . Could you so me how? I tried this

(public|protected|private|static|\s) +[\w\<\>\[\], ]+\s+(\w+) *\([^\)]*\) *(\{?|[^;]) .*\{((\s|.)*)\}

But I doesn't work fine.

Answer 1

Use this. DEMO

\{((\s*?.*?)*?)*\}

Answer 2

. does not matches end line so it wont help.

try this: [^{]*\\{([^aa]*)\\}

Answer 3

{(?:(?!\n{2,})[\s\S])*}

You can simply do this to get what you want.See demo.

https://regex101.com/r/rU8yP6/14

Answer 4

This regular expression will work:

.*\(.*\)\s*\{((\s|.)*)\}

You need to the get the second capturing group, ie, .*\\(.*\\)\\s*\\{((\\s|.)*)\\} . However, the content will be string. If you want structured content, then you need to use a parser for Java. You can take a look at Java Compiler Tree API, or use a standalone parser generator to generate a Java parser.