Avoid invalid regular expression
ID: go-best-practices/valid-regular-expression
Language: Go
Severity: Info
Category: Best Practices
Description
Regular expression in Go must be valid regular expressions. You can check the validity of regular expressions on regex101.com.
Non-Compliant Code Examples
func main() {
var c1 = "["
c2 := "["
regexp.MustCompile(c1)
if something {
regexp.MustCompile(c2)
} else {
regexp.MustCompile(c2)
}
}
func main() {
regexp.MustCompile("[")
regexp.Compile("(")
regexp.Match("(")
regexp.MatchReader("(")
regexp.MatchString("(")
}
Compliant Code Examples
func main() {
regexp.MustCompile("[a-z]+")
regexp.Compile("[a-z]+")
regexp.Match("[a-z]+")
regexp.MatchReader("[a-z]+")
regexp.MatchString("[a-z]+")
regexp.MustCompile("^error-tracking-(.+)$")
regexp.MustCompile("(?i)windows")
}
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