Need single python regex for the following:

Question

pattern contains

• any words and not and like

  examples - 'adsjfjkdsa not like', 'wordsmsj not like'

• any words and like

  examples - 'dakladkl like', 'adsjkjk like'

The regex should be single regex not multiple match the follwing patterns:

'jkasjkdsk like'

'anyword not like'

'dsklksd like'

The regex should not match the following words: 'sdkjjksjk notlike' 'sdkjdjsklike' 'jkadjkjkad'

I know that it is possible to check these pattern with two regex patterns. I want to know if it is possible in one regex.

Regex to match first pattern - r'[a-z]*[\s]like'

second pattern - r'[a-z]*[\s]not[\s]like'

Answer 1

as simple as this regex : \w+(?: not | )like

you can use :

• \s instead of (space).
• [a-zA-Z] instead of \w

note : (?: ) is a non-capturing group. reference : 1) non-capturing group 2) regex doc