Notepad++ RegEx does not work with min and max occurence

Question

I want to find two or more (max 9) white-space characters and replace it with newlines.

My RegEx syntax is as follows:

[\s]{2,9}

However, Notepad++'s RegEx doesn't seem to work with curly braces. When I use plugin RegEx helper, it highlights proper values, using above syntax. It doesn't, however, replace the found values.

What am I doing wrong?

Answer 1

I found no reference to curly-based occurence numbering in Notepad++ regexp documentation.

Then you should to it the hard way:

\s\s\s?\s?\s?\s?\s?\s?\s?

Answer 2

Notepad++ does not support explicit quantifiers:

You can, however, use the following quantifiers:

• k*, which is equivalent to k{0,}.
• k+, which is equivalent to k{1,}.
• k?, which is equivalent to k{0,1}.