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Regex match pattern, space and character

^([a-zA-Z0-9_-]+)$ matches:

BAP-78810
BAP-148080

But does not match:

B8241066 C
Q2111999 A
Q2111999 B

How can I modify regex pattern to match any space and/or special character?

Solution

  • For the example data, you can write the pattern as:

    ^[a-zA-Z0-9_-]+(?: [A-Z])?$
    • ^ Start of string
    • [a-zA-Z0-9_-]+ Match 1+ chars listed in the character class
    • (?: [A-Z])? Optionally match a space and a char A-Z
    • $ End of string

    Regex demo

    Or a more exact match:

    ^[A-Z]+-?\d+(?: [A-Z])?$
    • ^ Start of string
    • [A-Z]+-? Match 1+ chars A-Z and optional -
    • \d+(?: [A-Z])? Matchh 1+ digits and optional space and char A-Z
    • $ End of string

    Regex demo