Simplify regular expression by using raw string literal SCC-S1007
Anti-pattern
Major
6 months ago
—
3 years old
should use raw string (
...) with regexp.MustCompile to avoid having to escape twice19}
20
21func compareGoVersion(a, b string) int {
22 reg := regexp.MustCompile("^\\d*")23
24 a = strings.TrimPrefix(a, "go")
25 b = strings.TrimPrefix(b, "go")
Description
Raw string literals use backticks (`) instead of quotes (") and thus, do not support any escape sequences. This means that the backslash (\) can be used freely, without escaping.
Since regular expressions have their escape sequences, raw strings can improve their readability.
Bad practice
regexp.Compile("\\A(\\w+) profile: total \\d+\\n\\z")
Recommended
regexp.Compile(`\A(\w+) profile: total \d+
\z`)