Golang: extract data with Regex

Question

I\'m trying to extract whatever data inside ${}.

For example, the data extracted from this string should be abc.

git commit -m          


        

Answer 1

You need to escape $, { and } in the regex.

re := regexp.MustCompile("\\$\\{(.*?)\\}")
match := re.FindStringSubmatch("git commit -m '${abc}'")
fmt.Println(match[1])

Golang Demo

In regex,

$ <-- End of string
{} <-- Contains the range. e.g. a{1,2}

You can also use

re := regexp.MustCompile(`\$\{([^}]*)\}`)