39 lines
554 B
Go
39 lines
554 B
Go
package internal
|
|
|
|
import "github.com/go-redis/redis/internal/util"
|
|
|
|
func ToLower(s string) string {
|
|
if isLower(s) {
|
|
return s
|
|
}
|
|
|
|
b := make([]byte, len(s))
|
|
for i := range b {
|
|
c := s[i]
|
|
if c >= 'A' && c <= 'Z' {
|
|
c += 'a' - 'A'
|
|
}
|
|
b[i] = c
|
|
}
|
|
return util.BytesToString(b)
|
|
}
|
|
|
|
func isLower(s string) bool {
|
|
for i := 0; i < len(s); i++ {
|
|
c := s[i]
|
|
if c >= 'A' && c <= 'Z' {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func Unwrap(err error) error {
|
|
u, ok := err.(interface {
|
|
Unwrap() error
|
|
})
|
|
if !ok {
|
|
return nil
|
|
}
|
|
return u.Unwrap()
|
|
}
|