Notepad++ add linebreak after number 1 to 100 [duplicate] - regex

Question

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Add a new line after a matched pattern in Notepad++
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Closed 2 years ago.
I'm trying to solve the following problem without success:
I have a document with 100 questions on one line.
In Notepad++ I want to replace each "space | question number | dot | space" and add a linebreak after this, so for example:
This is question one 2. This is question one 3. This is question three
To:
This is question one
This is question two
This is question three
I'm new to regex, I managed to create the following: [\s][1-9][0-9][.][\s] but then I'm missing the single digit numbers...

Answer 1

Using this Regex will match only numbers between 1-100 exclusively:
\s*([1-9][0-9]?|100)\.\s+
while the following will match whatever number of digits regardless of the value:
\s*\d+\.\s+
the \s* will match zero or more spaces before the number.
\d+ matches one or more digits
\. matches the dot, we use the \ to escape it since it's a special character in regex
\s+ matches one or more spaces
([1-9][0-9]?|100) matches any two numbers between 1 and 9 so 1 to 99 and we use the | as "OR" to include 100
type your prefered regex in the "Find what" box and \n (new line) in the "Replace with" box.
you can keep the question number using:
\s*(([1-9][0-9]?|100)\.)\s+
OR
\s*(\d+\.)\s+
and replacing it with:
\n$1