guid的正则表达式

Question

I'm having some issues with following regular expressions.

Error: Invalid operation

re := regexp.MustCompile("(([a-f0-9]+\-)+[a-f0-9]+)\/(.*?)\/(.*?);version=(\d*)")
match := re.FindStringSubmatch(hex.EncodeToString([]byte(href)))
fmt.Println(match)

my test strings that I'm trying to match are

/data/1221a7f47-84c1-445e-a615-ff82d92e2eaa/article/jane;version=1493756861347

/data/1221a7f47-84c1-445e-a615-ff82d92e2eaa/article/john;version=1493756856398

Expecting following strings after match

1. 1221a7f47-84c1-445e-a615-ff82d92e2eaa
2. article
3. jane
4. 1493756856398

Answer 1

You need to fix the first line, declare the regex correctly. Try these:

Using backslashes (to escape)

re := regexp.MustCompile("(([a-f0-9]+\\-)+[a-f0-9]+)\\/(.*?)\\/(.*?);version=(\\d*)")

Try it out

Using raw string literals (`)

re := regexp.MustCompile(`(([a-f0-9]+\-)+[a-f0-9]+)\/(.*?)\/(.*?);version=(\d*)`)

Try it out