append an existing string with notepad++

I have multiple text files opened in Notepad++. And each file is like this.

[11]
[205]
[77]

I’m searching for [[0-9]+]\s in regex mode, but I don’t know how to replace it to the output I need.

And I want to append a string like this in all opened files, like this.

[11.0]
[205.0]
[77.0]

I’m searching for \[[0-9]+\]\s in regex mode, but I don’t know how to replace it to the output I need.

How to do this?

>Solution :

Use this regex for searching:

(\[\d+)(\])

and the following for replacing:

\1.0\2

You need to escape [ and ] in your pattern via a \ since they have a special meaning in the regular expression world.