I am trying to match the below string with Regular expression
string : PKGx.1234 ... BBA Regular expression : ^\bPKG[0-9]{0,1}.[0-9]{0,4}\ ...\ \bBB[A-B]{1}?$
but i am getting no match error
can anyone help me with how can i remodify the regular expression to match the given string ..?
You have a character x after PKG that the pattern tries to match with an optional digit [0-9]? If there should be an optional single a lowercase character, you can use [a-z]? instead.
You can omit the word boundary before the BB as there is an implicit word boundary in between.
Note that you don't have escape the spaces, but you do have to escape the dot to match it literally.
^PKG[a-z]?\.[0-9]{0,4} \.{3} BB[A-B]\b
If you want to match the whole string including the space and comma at the end, including using the $ anchor to assert the end of the string:
^PKG[a-z]?\.[0-9]{0,4} \.{3} BB[A-B] , *$