正则表达式在go lang匹配期间以及-和A-z 0-9

Question

I am trying to do a Regex in Go to match s3 bucket urls.

so far i have

https://s3.amazonaws.com/(.+?)/",
        "http://s3.amazonaws.com/(.+?)/",
        "//s3-us-east-2.amazonaws.com/(.+?)/",
        "//s3-us-west-1.amazonaws.com/(.+?)/",
        "//s3-us-west-2.amazonaws.com/(.+?)/",
        "//s3.ca-central-1.amazonaws.com/(.+?)/",
        "//s3-ap-south-1.amazonaws.com/(.+?)/",
        "//s3-ap-northeast-2.amazonaws.com/(.+?)/",
        "//s3-ap-southeast-1.amazonaws.com/(.+?)/",
        "//s3-ap-northeast-1.amazonaws.com/(.+?)/",
        "//s3-eu-central-1.amazonaws.com/(.+?)/",
        "//s3-eu-west-1.amazonaws.com/(.+?)/",
        "//s3-eu-west-2.amazonaws.com/(.+?)/",
        "//s3-eu-west-3.amazonaws.com/(.+?)/",
        "//s3.sa-east-1.amazonaws.com/(.+?)/",
        "https://(.+?).s3.amazonaws.com",
        "//s3.amazonaws.com/([A-z0-9-]+)",
        "//s3-ap-southeast-2.amazonaws.com/(.+?)/",

but this is overkill so i was looking at

//s3.amazonaws.com/([A-z0-9-]+)

but this misses out the . but when i do //s3.amazonaws.com/([A-z0-9-]\.+) it does not match any of the strings found.

I am currently trying to match it against

//s3.amazonaws.com/bucket.name/ and //s3.amazonaws.com/bucket-name-here

any suggestions?

Answer 1

Add dot to the character class:

//s3.amazonaws.com/([-A-z0-9.]+)

Demo