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37 lines
471 B
37 lines
471 B
package is |
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import ( |
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"math/big" |
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"unicode" |
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) |
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func Digit(s string) bool { |
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for _, r := range s { |
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if !unicode.IsDigit(r) { |
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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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func Lower(s string) bool { |
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for _, r := range s { |
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if !unicode.IsLower(r) { |
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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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func Upper(s string) bool { |
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for _, r := range s { |
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if !unicode.IsUpper(r) { |
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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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func Prime(i int) bool { |
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return big.NewInt(int64(i)).ProbablyPrime(0) |
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}
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