text with redundant side chars formatting in emacs

I did lots of search without luck. I think even this is easy but it could help, so here it goes.

Here the goal is to format a kind of Java String to plain text.

For example, consider a String in java code,

logger.LogText( "Hi, this is 1st line " + "\n" +

                 "speak sth. in 2nd line " + "\n" +

                 "answered...? ");

and i want to copy from the whole String and paste to my plain text file, then run

M-x s开发者_运维知识库ome-format-function-by-template-on-selection

and i got a result

Hi, this is 1st line

speak sth. in 2nd line

answered...?

Is there a built-in command for this?

It's not have to use template, but don't you think it's cool? Currently i try to use 'align' to work around.

The built-in commands are the regexp functions :-)

(defun my-reduce-to-string (start end)
  "Extract a quoted string from the selected region."
  (interactive "r")
  (let* ((text1 (replace-regexp-in-string ".*?\"\\([^\"]+\\)\"[^\"]*" "\\1" 
                    (buffer-substring start end)))
         (text (replace-regexp-in-string "\\\\n" "\n" text1)))
     (delete-region start end)
     (insert text)))

Note that this is a destructive function -- it replaces the text in the buffer as requested.