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// Copyright 2009 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package unicode

// IsDigit reports whether the rune is a decimal digit.

func IsDigit(r rune) bool {

        if r <= MaxLatin1 {

                return '0' <= r && r <= '9'

        }

        return Is(Digit, r)

}