What will be the regular expression of the following in python?

Question

I want the regular expression of the following pattern

Rule

The pattern should have no no punctuation except +. No blank spaces are allowed.Only alphabetical characters are allowed.
The patter should be of two or more characters

EDIT:

I am thinking something like:

'^\w\w+ |[ \w\w+ + \w\w+] $'

But it is not working.

Add details what you tried and what the scenario you are facing this may lead to simpler solution! — Learner, Nov 08 '15 at 10:51
SO is not a code write service, please edit your question and add your code. — Remi Guan, Nov 08 '15 at 10:54
Possible duplicate of [Can You Use a Single Regular Expression to Parse Function Parameters?](http://stackoverflow.com/questions/3885653/can-you-use-a-single-regular-expression-to-parse-function-parameters) — Sakib Ahammed, Nov 08 '15 at 10:59
Another question, why are you using `^...$` here? Are you trying to match the whole line? — Remi Guan, Nov 08 '15 at 11:00
You want regex to check if string consist of two or more characters. Only word characters and `+` are allowed. Or only letters `a-zA-Z` and `+` ? Strings like `++` are fine? — bobble bubble, Nov 08 '15 at 11:02

Sam · Accepted Answer · 2015-11-08T11:10:03.893

Your question has very limited detail, however the very simple answer is:

^[+]{2,}$

However, that would only match the character "+" 2 or more times. Since you're saying punctuation, it seems to imply that you want to allow other text. In that case, I would go with:

^[\w+ ]{2,}$

Which would allow all "word characters" and spaces. In the Python string, you will need to escape the backslash with another backslash.
If you want to experiment with regex strings, I would highly recommend the website http://regex101.com

EDIT: I have now seen your updated question, and to only have alphabetical characters and the plus symbol, you will want

^[A-Za-z+]{2,}$

You don't have to escape the backslash if you use a raw string `r'^[\w+ ]{2,}$'` — Ben, Nov 08 '15 at 10:59

What will be the regular expression of the following in python?

1 Answers1