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30 lines
427 B
30 lines
427 B
6 years ago
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package internal
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import "github.com/go-redis/redis/internal/util"
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func ToLower(s string) string {
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if isLower(s) {
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return s
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}
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b := make([]byte, len(s))
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for i := range b {
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c := s[i]
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if c >= 'A' && c <= 'Z' {
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c += 'a' - 'A'
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}
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b[i] = c
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}
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return util.BytesToString(b)
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}
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func isLower(s string) bool {
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for i := 0; i < len(s); i++ {
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c := s[i]
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if c >= 'A' && c <= 'Z' {
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return false
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}
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}
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return true
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}
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